diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/__init__.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..61d1f55413afdc877ccf600a8715b940a4b849f9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/__init__.py
@@ -0,0 +1,67 @@
+from mitmproxy.addons import anticache
+from mitmproxy.addons import anticomp
+from mitmproxy.addons import block
+from mitmproxy.addons import blocklist
+from mitmproxy.addons import browser
+from mitmproxy.addons import clientplayback
+from mitmproxy.addons import command_history
+from mitmproxy.addons import comment
+from mitmproxy.addons import core
+from mitmproxy.addons import cut
+from mitmproxy.addons import disable_h2c
+from mitmproxy.addons import dns_resolver
+from mitmproxy.addons import export
+from mitmproxy.addons import maplocal
+from mitmproxy.addons import mapremote
+from mitmproxy.addons import modifybody
+from mitmproxy.addons import modifyheaders
+from mitmproxy.addons import next_layer
+from mitmproxy.addons import onboarding
+from mitmproxy.addons import proxyauth
+from mitmproxy.addons import proxyserver
+from mitmproxy.addons import save
+from mitmproxy.addons import savehar
+from mitmproxy.addons import script
+from mitmproxy.addons import serverplayback
+from mitmproxy.addons import stickyauth
+from mitmproxy.addons import stickycookie
+from mitmproxy.addons import strip_dns_https_records
+from mitmproxy.addons import tlsconfig
+from mitmproxy.addons import update_alt_svc
+from mitmproxy.addons import upstream_auth
+
+
+def default_addons():
+    return [
+        core.Core(),
+        browser.Browser(),
+        block.Block(),
+        strip_dns_https_records.StripDnsHttpsRecords(),
+        blocklist.BlockList(),
+        anticache.AntiCache(),
+        anticomp.AntiComp(),
+        clientplayback.ClientPlayback(),
+        command_history.CommandHistory(),
+        comment.Comment(),
+        cut.Cut(),
+        disable_h2c.DisableH2C(),
+        export.Export(),
+        onboarding.Onboarding(),
+        proxyauth.ProxyAuth(),
+        proxyserver.Proxyserver(),
+        script.ScriptLoader(),
+        dns_resolver.DnsResolver(),
+        next_layer.NextLayer(),
+        serverplayback.ServerPlayback(),
+        mapremote.MapRemote(),
+        maplocal.MapLocal(),
+        modifybody.ModifyBody(),
+        modifyheaders.ModifyHeaders(),
+        stickyauth.StickyAuth(),
+        stickycookie.StickyCookie(),
+        save.Save(),
+        savehar.SaveHar(),
+        tlsconfig.TlsConfig(),
+        upstream_auth.UpstreamAuth(),
+        update_alt_svc.UpdateAltSvc(),
+    ]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/anticache.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/anticache.py
new file mode 100644
index 0000000000000000000000000000000000000000..38b636de2bd637331d01524eece0ee32be5adebf
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/anticache.py
@@ -0,0 +1,18 @@
+from mitmproxy import ctx
+
+
+class AntiCache:
+    def load(self, loader):
+        loader.add_option(
+            "anticache",
+            bool,
+            False,
+            """
+            Strip out request headers that might cause the server to return
+            304-not-modified.
+            """,
+        )
+
+    def request(self, flow):
+        if ctx.options.anticache:
+            flow.request.anticache()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/anticomp.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/anticomp.py
new file mode 100644
index 0000000000000000000000000000000000000000..eae8bc5b6709790b787d851634c7f8abe7fe75c9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/anticomp.py
@@ -0,0 +1,15 @@
+from mitmproxy import ctx
+
+
+class AntiComp:
+    def load(self, loader):
+        loader.add_option(
+            "anticomp",
+            bool,
+            False,
+            "Try to convince servers to send us un-compressed data.",
+        )
+
+    def request(self, flow):
+        if ctx.options.anticomp:
+            flow.request.anticomp()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/asgiapp.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/asgiapp.py
new file mode 100644
index 0000000000000000000000000000000000000000..785d7982b726ec160a25a7d42d13bc84c53f15fe
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/asgiapp.py
@@ -0,0 +1,144 @@
+import asyncio
+import logging
+import urllib.parse
+
+import asgiref.compatibility
+import asgiref.wsgi
+
+from mitmproxy import ctx
+from mitmproxy import http
+
+logger = logging.getLogger(__name__)
+
+
+class ASGIApp:
+    """
+    An addon that hosts an ASGI/WSGI HTTP app within mitmproxy, at a specified hostname and port.
+
+    Some important caveats:
+        - This implementation will block and wait until the entire HTTP response is completed before sending out data.
+        - It currently only implements the HTTP protocol (Lifespan and WebSocket are unimplemented).
+    """
+
+    def __init__(self, asgi_app, host: str, port: int | None):
+        asgi_app = asgiref.compatibility.guarantee_single_callable(asgi_app)
+        self.asgi_app, self.host, self.port = asgi_app, host, port
+
+    @property
+    def name(self) -> str:
+        return f"asgiapp:{self.host}:{self.port}"
+
+    def should_serve(self, flow: http.HTTPFlow) -> bool:
+        return bool(
+            flow.request.pretty_host == self.host
+            and (self.port is None or flow.request.port == self.port)
+            and flow.live
+            and not flow.error
+            and not flow.response
+        )
+
+    async def request(self, flow: http.HTTPFlow) -> None:
+        if self.should_serve(flow):
+            await serve(self.asgi_app, flow)
+
+
+class WSGIApp(ASGIApp):
+    def __init__(self, wsgi_app, host: str, port: int | None):
+        asgi_app = asgiref.wsgi.WsgiToAsgi(wsgi_app)
+        super().__init__(asgi_app, host, port)
+
+
+HTTP_VERSION_MAP = {
+    "HTTP/1.0": "1.0",
+    "HTTP/1.1": "1.1",
+    "HTTP/2.0": "2",
+}
+
+
+def make_scope(flow: http.HTTPFlow) -> dict:
+    # %3F is a quoted question mark
+    quoted_path = urllib.parse.quote_from_bytes(flow.request.data.path).split(
+        "%3F", maxsplit=1
+    )
+
+    # (Unicode string) – HTTP request target excluding any query string, with percent-encoded
+    # sequences and UTF-8 byte sequences decoded into characters.
+    path = quoted_path[0]
+
+    # (byte string) – URL portion after the ?, percent-encoded.
+    query_string: bytes
+    if len(quoted_path) > 1:
+        query_string = urllib.parse.unquote(quoted_path[1]).encode()
+    else:
+        query_string = b""
+
+    return {
+        "type": "http",
+        "asgi": {
+            "version": "3.0",
+            "spec_version": "2.1",
+        },
+        "http_version": HTTP_VERSION_MAP.get(flow.request.http_version, "1.1"),
+        "method": flow.request.method,
+        "scheme": flow.request.scheme.upper(),
+        "path": path,
+        "raw_path": flow.request.path,
+        "query_string": query_string,
+        "headers": [
+            (name.lower(), value) for (name, value) in flow.request.headers.fields
+        ],
+        "client": flow.client_conn.peername,
+        "extensions": {
+            "mitmproxy.master": ctx.master,
+        },
+    }
+
+
+async def serve(app, flow: http.HTTPFlow):
+    """
+    Serves app on flow.
+    """
+
+    scope = make_scope(flow)
+    done = asyncio.Event()
+    received_body = False
+    sent_response = False
+
+    async def receive():
+        nonlocal received_body
+        if not received_body:
+            received_body = True
+            return {
+                "type": "http.request",
+                "body": flow.request.raw_content,
+            }
+        else:  # pragma: no cover
+            # We really don't expect this to be called a second time, but what to do?
+            # We just wait until the request is done before we continue here with sending a disconnect.
+            await done.wait()
+            return {"type": "http.disconnect"}
+
+    async def send(event):
+        if event["type"] == "http.response.start":
+            flow.response = http.Response.make(
+                event["status"], b"", event.get("headers", [])
+            )
+            flow.response.decode()
+        elif event["type"] == "http.response.body":
+            assert flow.response
+            flow.response.content += event.get("body", b"")
+            if not event.get("more_body", False):
+                nonlocal sent_response
+                sent_response = True
+        else:
+            raise AssertionError(f"Unexpected event: {event['type']}")
+
+    try:
+        await app(scope, receive, send)
+        if not sent_response:
+            raise RuntimeError(f"no response sent.")
+    except Exception as e:
+        logger.exception(f"Error in asgi app: {e}")
+        flow.response = http.Response.make(500, b"ASGI Error.")
+    finally:
+        done.set()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/block.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/block.py
new file mode 100644
index 0000000000000000000000000000000000000000..cdd68bf97ee86609f77bcdb3d765e3667eee5c64
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/block.py
@@ -0,0 +1,48 @@
+import ipaddress
+import logging
+
+from mitmproxy import ctx
+from mitmproxy.proxy import mode_specs
+
+
+class Block:
+    def load(self, loader):
+        loader.add_option(
+            "block_global",
+            bool,
+            True,
+            """
+            Block connections from public IP addresses.
+            """,
+        )
+        loader.add_option(
+            "block_private",
+            bool,
+            False,
+            """
+            Block connections from local (private) IP addresses.
+            This option does not affect loopback addresses (connections from the local machine),
+            which are always permitted.
+            """,
+        )
+
+    def client_connected(self, client):
+        parts = client.peername[0].rsplit("%", 1)
+        address = ipaddress.ip_address(parts[0])
+        if isinstance(address, ipaddress.IPv6Address):
+            address = address.ipv4_mapped or address
+
+        if address.is_loopback or isinstance(client.proxy_mode, mode_specs.LocalMode):
+            return
+
+        if ctx.options.block_private and address.is_private:
+            logging.warning(
+                f"Client connection from {client.peername[0]} killed by block_private option."
+            )
+            client.error = "Connection killed by block_private."
+
+        if ctx.options.block_global and address.is_global:
+            logging.warning(
+                f"Client connection from {client.peername[0]} killed by block_global option."
+            )
+            client.error = "Connection killed by block_global."
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/blocklist.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/blocklist.py
new file mode 100644
index 0000000000000000000000000000000000000000..9fac5efe2ad0de25fa2a0669b4fec73ff1122bfb
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/blocklist.py
@@ -0,0 +1,81 @@
+from collections.abc import Sequence
+from typing import NamedTuple
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy import version
+from mitmproxy.net.http.status_codes import NO_RESPONSE
+
+
+class BlockSpec(NamedTuple):
+    matches: flowfilter.TFilter
+    status_code: int
+
+
+def parse_spec(option: str) -> BlockSpec:
+    """
+    Parses strings in the following format, enforces number of segments:
+
+        /flow-filter/status
+
+    """
+    sep, rem = option[0], option[1:]
+
+    parts = rem.split(sep, 2)
+    if len(parts) != 2:
+        raise ValueError("Invalid number of parameters (2 are expected)")
+    flow_patt, status = parts
+    try:
+        status_code = int(status)
+    except ValueError:
+        raise ValueError(f"Invalid HTTP status code: {status}")
+    flow_filter = flowfilter.parse(flow_patt)
+
+    return BlockSpec(matches=flow_filter, status_code=status_code)
+
+
+class BlockList:
+    def __init__(self) -> None:
+        self.items: list[BlockSpec] = []
+
+    def load(self, loader):
+        loader.add_option(
+            "block_list",
+            Sequence[str],
+            [],
+            """
+            Block matching requests and return an empty response with the specified HTTP status.
+            Option syntax is "/flow-filter/status-code", where flow-filter describes
+            which requests this rule should be applied to and status-code is the HTTP status code to return for
+            blocked requests. The separator ("/" in the example) can be any character.
+            Setting a non-standard status code of 444 will close the connection without sending a response.
+            """,
+        )
+
+    def configure(self, updated):
+        if "block_list" in updated:
+            self.items = []
+            for option in ctx.options.block_list:
+                try:
+                    spec = parse_spec(option)
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Cannot parse block_list option {option}: {e}"
+                    ) from e
+                self.items.append(spec)
+
+    def request(self, flow: http.HTTPFlow) -> None:
+        if flow.response or flow.error or not flow.live:
+            return
+
+        for spec in self.items:
+            if spec.matches(flow):
+                flow.metadata["blocklisted"] = True
+                if spec.status_code == NO_RESPONSE:
+                    flow.kill()
+                else:
+                    flow.response = http.Response.make(
+                        spec.status_code, headers={"Server": version.MITMPROXY}
+                    )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/browser.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/browser.py
new file mode 100644
index 0000000000000000000000000000000000000000..ccc9209536be34aba7f8734f81ad17df713655c8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/browser.py
@@ -0,0 +1,186 @@
+import logging
+import shutil
+import subprocess
+import tempfile
+
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy.log import ALERT
+
+
+def find_executable_cmd(*search_paths) -> list[str] | None:
+    for browser in search_paths:
+        if shutil.which(browser):
+            return [browser]
+
+    return None
+
+
+def find_flatpak_cmd(*search_paths) -> list[str] | None:
+    if shutil.which("flatpak"):
+        for browser in search_paths:
+            if (
+                subprocess.run(
+                    ["flatpak", "info", browser],
+                    stdout=subprocess.DEVNULL,
+                    stderr=subprocess.DEVNULL,
+                ).returncode
+                == 0
+            ):
+                return ["flatpak", "run", "-p", browser]
+
+    return None
+
+
+class Browser:
+    browser: list[subprocess.Popen] = []
+    tdir: list[tempfile.TemporaryDirectory] = []
+
+    @command.command("browser.start")
+    def start(self, browser: str = "chrome") -> None:
+        if len(self.browser) > 0:
+            logging.log(ALERT, "Starting additional browser")
+
+        if browser in ("chrome", "chromium"):
+            self.launch_chrome()
+        elif browser == "firefox":
+            self.launch_firefox()
+        else:
+            logging.log(ALERT, "Invalid browser name.")
+
+    def launch_chrome(self) -> None:
+        """
+        Start an isolated instance of Chrome that points to the currently
+        running proxy.
+        """
+        cmd = find_executable_cmd(
+            "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome",
+            # https://stackoverflow.com/questions/40674914/google-chrome-path-in-windows-10
+            r"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",
+            r"C:\Program Files (x86)\Google\Application\chrome.exe",
+            # Linux binary names from Python's webbrowser module.
+            "google-chrome",
+            "google-chrome-stable",
+            "chrome",
+            "chromium",
+            "chromium-browser",
+            "google-chrome-unstable",
+        ) or find_flatpak_cmd(
+            "com.google.Chrome",
+            "org.chromium.Chromium",
+            "com.github.Eloston.UngoogledChromium",
+            "com.google.ChromeDev",
+        )
+
+        if not cmd:
+            logging.log(
+                ALERT, "Your platform is not supported yet - please submit a patch."
+            )
+            return
+
+        tdir = tempfile.TemporaryDirectory()
+        self.tdir.append(tdir)
+        self.browser.append(
+            subprocess.Popen(
+                [
+                    *cmd,
+                    "--user-data-dir=%s" % str(tdir.name),
+                    "--proxy-server={}:{}".format(
+                        ctx.options.listen_host or "127.0.0.1",
+                        ctx.options.listen_port or "8080",
+                    ),
+                    "--disable-fre",
+                    "--no-default-browser-check",
+                    "--no-first-run",
+                    "--disable-extensions",
+                    "about:blank",
+                ],
+                stdout=subprocess.DEVNULL,
+                stderr=subprocess.DEVNULL,
+            )
+        )
+
+    def launch_firefox(self) -> None:
+        """
+        Start an isolated instance of Firefox that points to the currently
+        running proxy.
+        """
+        cmd = find_executable_cmd(
+            "/Applications/Firefox.app/Contents/MacOS/firefox",
+            r"C:\Program Files\Mozilla Firefox\firefox.exe",
+            "firefox",
+            "mozilla-firefox",
+            "mozilla",
+        ) or find_flatpak_cmd("org.mozilla.firefox")
+
+        if not cmd:
+            logging.log(
+                ALERT, "Your platform is not supported yet - please submit a patch."
+            )
+            return
+
+        host = ctx.options.listen_host or "127.0.0.1"
+        port = ctx.options.listen_port or 8080
+        prefs = [
+            'user_pref("datareporting.policy.firstRunURL", "");',
+            'user_pref("network.proxy.type", 1);',
+            'user_pref("network.proxy.share_proxy_settings", true);',
+            'user_pref("datareporting.healthreport.uploadEnabled", false);',
+            'user_pref("app.normandy.enabled", false);',
+            'user_pref("app.update.auto", false);',
+            'user_pref("app.update.enabled", false);',
+            'user_pref("app.update.autoInstallEnabled", false);',
+            'user_pref("app.shield.optoutstudies.enabled", false);'
+            'user_pref("extensions.blocklist.enabled", false);',
+            'user_pref("browser.safebrowsing.downloads.remote.enabled", false);',
+            'user_pref("browser.region.network.url", "");',
+            'user_pref("browser.region.update.enabled", false);',
+            'user_pref("browser.region.local-geocoding", false);',
+            'user_pref("extensions.pocket.enabled", false);',
+            'user_pref("network.captive-portal-service.enabled", false);',
+            'user_pref("network.connectivity-service.enabled", false);',
+            'user_pref("toolkit.telemetry.server", "");',
+            'user_pref("dom.push.serverURL", "");',
+            'user_pref("services.settings.enabled", false);',
+            'user_pref("browser.newtab.preload", false);',
+            'user_pref("browser.safebrowsing.provider.google4.updateURL", "");',
+            'user_pref("browser.safebrowsing.provider.mozilla.updateURL", "");',
+            'user_pref("browser.newtabpage.activity-stream.feeds.topsites", false);',
+            'user_pref("browser.newtabpage.activity-stream.default.sites", "");',
+            'user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);',
+            'user_pref("browser.bookmarks.restore_default_bookmarks", false);',
+            'user_pref("browser.bookmarks.file", "");',
+        ]
+        for service in ("http", "ssl"):
+            prefs += [
+                f'user_pref("network.proxy.{service}", "{host}");',
+                f'user_pref("network.proxy.{service}_port", {port});',
+            ]
+
+        tdir = tempfile.TemporaryDirectory()
+
+        with open(tdir.name + "/prefs.js", "w") as file:
+            file.writelines(prefs)
+
+        self.tdir.append(tdir)
+        self.browser.append(
+            subprocess.Popen(
+                [
+                    *cmd,
+                    "--profile",
+                    str(tdir.name),
+                    "--new-window",
+                    "about:blank",
+                ],
+                stdout=subprocess.DEVNULL,
+                stderr=subprocess.DEVNULL,
+            )
+        )
+
+    def done(self):
+        for browser in self.browser:
+            browser.kill()
+        for tdir in self.tdir:
+            tdir.cleanup()
+        self.browser = []
+        self.tdir = []
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/clientplayback.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/clientplayback.py
new file mode 100644
index 0000000000000000000000000000000000000000..64d90e5a9bb7f97b19f00b05e6101cc235677daf
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/clientplayback.py
@@ -0,0 +1,298 @@
+from __future__ import annotations
+
+import asyncio
+import logging
+import time
+from collections.abc import Sequence
+from types import TracebackType
+from typing import cast
+from typing import Literal
+
+import mitmproxy.types
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import http
+from mitmproxy import io
+from mitmproxy.connection import ConnectionState
+from mitmproxy.connection import Server
+from mitmproxy.hooks import UpdateHook
+from mitmproxy.log import ALERT
+from mitmproxy.options import Options
+from mitmproxy.proxy import commands
+from mitmproxy.proxy import events
+from mitmproxy.proxy import layers
+from mitmproxy.proxy import server
+from mitmproxy.proxy.context import Context
+from mitmproxy.proxy.layer import CommandGenerator
+from mitmproxy.proxy.layers.http import HTTPMode
+from mitmproxy.proxy.mode_specs import UpstreamMode
+from mitmproxy.utils import asyncio_utils
+
+logger = logging.getLogger(__name__)
+
+
+class MockServer(layers.http.HttpConnection):
+    """
+    A mock HTTP "server" that just pretends it received a full HTTP request,
+    which is then processed by the proxy core.
+    """
+
+    flow: http.HTTPFlow
+
+    def __init__(self, flow: http.HTTPFlow, context: Context):
+        super().__init__(context, context.client)
+        self.flow = flow
+
+    def _handle_event(self, event: events.Event) -> CommandGenerator[None]:
+        if isinstance(event, events.Start):
+            content = self.flow.request.raw_content
+            self.flow.request.timestamp_start = self.flow.request.timestamp_end = (
+                time.time()
+            )
+            yield layers.http.ReceiveHttp(
+                layers.http.RequestHeaders(
+                    1,
+                    self.flow.request,
+                    end_stream=not (content or self.flow.request.trailers),
+                    replay_flow=self.flow,
+                )
+            )
+            if content:
+                yield layers.http.ReceiveHttp(layers.http.RequestData(1, content))
+            if self.flow.request.trailers:  # pragma: no cover
+                # TODO: Cover this once we support HTTP/1 trailers.
+                yield layers.http.ReceiveHttp(
+                    layers.http.RequestTrailers(1, self.flow.request.trailers)
+                )
+            yield layers.http.ReceiveHttp(layers.http.RequestEndOfMessage(1))
+        elif isinstance(
+            event,
+            (
+                layers.http.ResponseHeaders,
+                layers.http.ResponseData,
+                layers.http.ResponseTrailers,
+                layers.http.ResponseEndOfMessage,
+                layers.http.ResponseProtocolError,
+            ),
+        ):
+            pass
+        else:  # pragma: no cover
+            logger.warning(f"Unexpected event during replay: {event}")
+
+
+class ReplayHandler(server.ConnectionHandler):
+    layer: layers.HttpLayer
+
+    def __init__(self, flow: http.HTTPFlow, options: Options) -> None:
+        client = flow.client_conn.copy()
+        client.state = ConnectionState.OPEN
+
+        context = Context(client, options)
+        context.server = Server(address=(flow.request.host, flow.request.port))
+        if flow.request.scheme == "https":
+            context.server.tls = True
+            context.server.sni = flow.request.pretty_host
+        if options.mode and options.mode[0].startswith("upstream:"):
+            mode = UpstreamMode.parse(options.mode[0])
+            assert isinstance(mode, UpstreamMode)  # remove once mypy supports Self.
+            context.server.via = flow.server_conn.via = (mode.scheme, mode.address)
+
+        super().__init__(context)
+
+        if options.mode and options.mode[0].startswith("upstream:"):
+            self.layer = layers.HttpLayer(context, HTTPMode.upstream)
+        else:
+            self.layer = layers.HttpLayer(context, HTTPMode.transparent)
+        self.layer.connections[client] = MockServer(flow, context.fork())
+        self.flow = flow
+        self.done = asyncio.Event()
+
+    async def replay(self) -> None:
+        await self.server_event(events.Start())
+        await self.done.wait()
+
+    def log(
+        self,
+        message: str,
+        level: int = logging.INFO,
+        exc_info: Literal[True]
+        | tuple[type[BaseException] | None, BaseException | None, TracebackType | None]
+        | None = None,
+    ) -> None:
+        assert isinstance(level, int)
+        logger.log(level=level, msg=f"[replay] {message}")
+
+    async def handle_hook(self, hook: commands.StartHook) -> None:
+        (data,) = hook.args()
+        await ctx.master.addons.handle_lifecycle(hook)
+        if isinstance(data, flow.Flow):
+            await data.wait_for_resume()
+        if isinstance(hook, (layers.http.HttpResponseHook, layers.http.HttpErrorHook)):
+            if self.transports:
+                # close server connections
+                for x in self.transports.values():
+                    if x.handler:
+                        x.handler.cancel()
+                await asyncio.wait(
+                    [x.handler for x in self.transports.values() if x.handler]
+                )
+            # signal completion
+            self.done.set()
+
+
+class ClientPlayback:
+    playback_task: asyncio.Task | None = None
+    inflight: http.HTTPFlow | None
+    queue: asyncio.Queue
+    options: Options
+    replay_tasks: set[asyncio.Task]
+
+    def __init__(self):
+        self.queue = asyncio.Queue()
+        self.inflight = None
+        self.task = None
+        self.replay_tasks = set()
+
+    def running(self):
+        self.options = ctx.options
+        self.playback_task = asyncio_utils.create_task(
+            self.playback(),
+            name="client playback",
+            keep_ref=False,
+        )
+
+    async def done(self):
+        if self.playback_task:
+            self.playback_task.cancel()
+            try:
+                await self.playback_task
+            except asyncio.CancelledError:
+                pass
+
+    async def playback(self):
+        while True:
+            self.inflight = await self.queue.get()
+            try:
+                assert self.inflight
+                h = ReplayHandler(self.inflight, self.options)
+                if ctx.options.client_replay_concurrency == -1:
+                    t = asyncio_utils.create_task(
+                        h.replay(),
+                        name="client playback awaiting response",
+                        keep_ref=False,
+                    )
+                    # keep a reference so this is not garbage collected
+                    self.replay_tasks.add(t)
+                    t.add_done_callback(self.replay_tasks.remove)
+                else:
+                    await h.replay()
+            except Exception:
+                logger.exception(f"Client replay has crashed!")
+            self.queue.task_done()
+            self.inflight = None
+
+    def check(self, f: flow.Flow) -> str | None:
+        if f.live or f == self.inflight:
+            return "Can't replay live flow."
+        if f.intercepted:
+            return "Can't replay intercepted flow."
+        if isinstance(f, http.HTTPFlow):
+            if not f.request:
+                return "Can't replay flow with missing request."
+            if f.request.raw_content is None:
+                return "Can't replay flow with missing content."
+            if f.websocket is not None:
+                return "Can't replay WebSocket flows."
+        else:
+            return "Can only replay HTTP flows."
+        return None
+
+    def load(self, loader):
+        loader.add_option(
+            "client_replay",
+            Sequence[str],
+            [],
+            "Replay client requests from a saved file.",
+        )
+        loader.add_option(
+            "client_replay_concurrency",
+            int,
+            1,
+            "Concurrency limit on in-flight client replay requests. Currently the only valid values are 1 and -1 (no limit).",
+        )
+
+    def configure(self, updated):
+        if "client_replay" in updated and ctx.options.client_replay:
+            try:
+                flows = io.read_flows_from_paths(ctx.options.client_replay)
+            except exceptions.FlowReadException as e:
+                raise exceptions.OptionsError(str(e))
+            self.start_replay(flows)
+
+        if "client_replay_concurrency" in updated:
+            if ctx.options.client_replay_concurrency not in [-1, 1]:
+                raise exceptions.OptionsError(
+                    "Currently the only valid client_replay_concurrency values are -1 and 1."
+                )
+
+    @command.command("replay.client.count")
+    def count(self) -> int:
+        """
+        Approximate number of flows queued for replay.
+        """
+        return self.queue.qsize() + int(bool(self.inflight))
+
+    @command.command("replay.client.stop")
+    def stop_replay(self) -> None:
+        """
+        Clear the replay queue.
+        """
+        updated = []
+        while True:
+            try:
+                f = self.queue.get_nowait()
+            except asyncio.QueueEmpty:
+                break
+            else:
+                self.queue.task_done()
+                f.revert()
+                updated.append(f)
+
+        ctx.master.addons.trigger(UpdateHook(updated))
+        logger.log(ALERT, "Client replay queue cleared.")
+
+    @command.command("replay.client")
+    def start_replay(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Add flows to the replay queue, skipping flows that can't be replayed.
+        """
+        updated: list[http.HTTPFlow] = []
+        for f in flows:
+            err = self.check(f)
+            if err:
+                logger.warning(err)
+                continue
+
+            http_flow = cast(http.HTTPFlow, f)
+
+            # Prepare the flow for replay
+            http_flow.backup()
+            http_flow.is_replay = "request"
+            http_flow.response = None
+            http_flow.error = None
+            self.queue.put_nowait(http_flow)
+            updated.append(http_flow)
+        ctx.master.addons.trigger(UpdateHook(updated))
+
+    @command.command("replay.client.file")
+    def load_file(self, path: mitmproxy.types.Path) -> None:
+        """
+        Load flows from file, and add them to the replay queue.
+        """
+        try:
+            flows = io.read_flows_from_paths([path])
+        except exceptions.FlowReadException as e:
+            raise exceptions.CommandError(str(e))
+        self.start_replay(flows)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/command_history.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/command_history.py
new file mode 100644
index 0000000000000000000000000000000000000000..507b60e500fa6dcc9e48b7488b3225d47dc435f5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/command_history.py
@@ -0,0 +1,96 @@
+import logging
+import os
+import pathlib
+from collections.abc import Sequence
+
+from mitmproxy import command
+from mitmproxy import ctx
+
+
+class CommandHistory:
+    VACUUM_SIZE = 1024
+
+    def __init__(self) -> None:
+        self.history: list[str] = []
+        self.filtered_history: list[str] = [""]
+        self.current_index: int = 0
+
+    def load(self, loader):
+        loader.add_option(
+            "command_history",
+            bool,
+            True,
+            """Persist command history between mitmproxy invocations.""",
+        )
+
+    @property
+    def history_file(self) -> pathlib.Path:
+        return pathlib.Path(os.path.expanduser(ctx.options.confdir)) / "command_history"
+
+    def running(self):
+        # FIXME: We have a weird bug where the contract for configure is not followed and it is never called with
+        # confdir or command_history as updated.
+        self.configure("command_history")  # pragma: no cover
+
+    def configure(self, updated):
+        if "command_history" in updated or "confdir" in updated:
+            if ctx.options.command_history and self.history_file.is_file():
+                self.history = self.history_file.read_text().splitlines()
+                self.set_filter("")
+
+    def done(self):
+        if ctx.options.command_history and len(self.history) >= self.VACUUM_SIZE:
+            # vacuum history so that it doesn't grow indefinitely.
+            history_str = "\n".join(self.history[-self.VACUUM_SIZE // 2 :]) + "\n"
+            try:
+                self.history_file.write_text(history_str)
+            except Exception as e:
+                logging.warning(f"Failed writing to {self.history_file}: {e}")
+
+    @command.command("commands.history.add")
+    def add_command(self, command: str) -> None:
+        if not command.strip():
+            return
+
+        self.history.append(command)
+        if ctx.options.command_history:
+            try:
+                with self.history_file.open("a") as f:
+                    f.write(f"{command}\n")
+            except Exception as e:
+                logging.warning(f"Failed writing to {self.history_file}: {e}")
+
+        self.set_filter("")
+
+    @command.command("commands.history.get")
+    def get_history(self) -> Sequence[str]:
+        """Get the entire command history."""
+        return self.history.copy()
+
+    @command.command("commands.history.clear")
+    def clear_history(self):
+        if self.history_file.exists():
+            try:
+                self.history_file.unlink()
+            except Exception as e:
+                logging.warning(f"Failed deleting {self.history_file}: {e}")
+        self.history = []
+        self.set_filter("")
+
+    # Functionality to provide a filtered list that can be iterated through.
+
+    @command.command("commands.history.filter")
+    def set_filter(self, prefix: str) -> None:
+        self.filtered_history = [cmd for cmd in self.history if cmd.startswith(prefix)]
+        self.filtered_history.append(prefix)
+        self.current_index = len(self.filtered_history) - 1
+
+    @command.command("commands.history.next")
+    def get_next(self) -> str:
+        self.current_index = min(self.current_index + 1, len(self.filtered_history) - 1)
+        return self.filtered_history[self.current_index]
+
+    @command.command("commands.history.prev")
+    def get_prev(self) -> str:
+        self.current_index = max(0, self.current_index - 1)
+        return self.filtered_history[self.current_index]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/comment.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/comment.py
new file mode 100644
index 0000000000000000000000000000000000000000..ecb303b0c0efbcdd5a18e6c8f6b9b0a76a78ea69
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/comment.py
@@ -0,0 +1,19 @@
+from collections.abc import Sequence
+
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import flow
+from mitmproxy.hooks import UpdateHook
+
+
+class Comment:
+    @command.command("flow.comment")
+    def comment(self, flow: Sequence[flow.Flow], comment: str) -> None:
+        "Add a comment to a flow"
+
+        updated = []
+        for f in flow:
+            f.comment = comment
+            updated.append(f)
+
+        ctx.master.addons.trigger(UpdateHook(updated))
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/core.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/core.py
new file mode 100644
index 0000000000000000000000000000000000000000..bb842748a9dad2f67ba97e346fc7771bc460a8a6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/core.py
@@ -0,0 +1,286 @@
+import logging
+import os
+from collections.abc import Sequence
+
+import mitmproxy.types
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import hooks
+from mitmproxy import optmanager
+from mitmproxy.log import ALERT
+from mitmproxy.net.http import status_codes
+from mitmproxy.utils import emoji
+
+logger = logging.getLogger(__name__)
+
+CONF_DIR = "~/.mitmproxy"
+LISTEN_PORT = 8080
+
+
+class Core:
+    def configure(self, updated):
+        opts = ctx.options
+        if opts.add_upstream_certs_to_client_chain and not opts.upstream_cert:
+            raise exceptions.OptionsError(
+                "add_upstream_certs_to_client_chain requires the upstream_cert option to be enabled."
+            )
+        if "client_certs" in updated:
+            if opts.client_certs:
+                client_certs = os.path.expanduser(opts.client_certs)
+                if not os.path.exists(client_certs):
+                    raise exceptions.OptionsError(
+                        f"Client certificate path does not exist: {opts.client_certs}"
+                    )
+
+    @command.command("set")
+    def set(self, option: str, *value: str) -> None:
+        """
+        Set an option. When the value is omitted, booleans are set to true,
+        strings and integers are set to None (if permitted), and sequences
+        are emptied. Boolean values can be true, false or toggle.
+        Multiple values are concatenated with a single space.
+        """
+        if value:
+            specs = [f"{option}={v}" for v in value]
+        else:
+            specs = [option]
+        try:
+            ctx.options.set(*specs)
+        except exceptions.OptionsError as e:
+            raise exceptions.CommandError(e) from e
+
+    @command.command("flow.resume")
+    def resume(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Resume flows if they are intercepted.
+        """
+        intercepted = [i for i in flows if i.intercepted]
+        for f in intercepted:
+            f.resume()
+        ctx.master.addons.trigger(hooks.UpdateHook(intercepted))
+
+    # FIXME: this will become view.mark later
+    @command.command("flow.mark")
+    def mark(self, flows: Sequence[flow.Flow], marker: mitmproxy.types.Marker) -> None:
+        """
+        Mark flows.
+        """
+        updated = []
+        if not (marker == "" or marker in emoji.emoji):
+            raise exceptions.CommandError(f"invalid marker value")
+
+        for i in flows:
+            i.marked = marker
+            updated.append(i)
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+
+    # FIXME: this will become view.mark.toggle later
+    @command.command("flow.mark.toggle")
+    def mark_toggle(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Toggle mark for flows.
+        """
+        for i in flows:
+            if i.marked:
+                i.marked = ""
+            else:
+                i.marked = ":default:"
+        ctx.master.addons.trigger(hooks.UpdateHook(flows))
+
+    @command.command("flow.kill")
+    def kill(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Kill running flows.
+        """
+        updated = []
+        for f in flows:
+            if f.killable:
+                f.kill()
+                updated.append(f)
+        logger.log(ALERT, "Killed %s flows." % len(updated))
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+
+    # FIXME: this will become view.revert later
+    @command.command("flow.revert")
+    def revert(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Revert flow changes.
+        """
+        updated = []
+        for f in flows:
+            if f.modified():
+                f.revert()
+                updated.append(f)
+        logger.log(ALERT, "Reverted %s flows." % len(updated))
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+
+    @command.command("flow.set.options")
+    def flow_set_options(self) -> Sequence[str]:
+        return [
+            "host",
+            "status_code",
+            "method",
+            "path",
+            "url",
+            "reason",
+        ]
+
+    @command.command("flow.set")
+    @command.argument("attr", type=mitmproxy.types.Choice("flow.set.options"))
+    def flow_set(self, flows: Sequence[flow.Flow], attr: str, value: str) -> None:
+        """
+        Quickly set a number of common values on flows.
+        """
+        val: int | str = value
+        if attr == "status_code":
+            try:
+                val = int(val)  # type: ignore
+            except ValueError as v:
+                raise exceptions.CommandError(
+                    "Status code is not an integer: %s" % val
+                ) from v
+
+        updated = []
+        for f in flows:
+            req = getattr(f, "request", None)
+            rupdate = True
+            if req:
+                if attr == "method":
+                    req.method = val
+                elif attr == "host":
+                    req.host = val
+                elif attr == "path":
+                    req.path = val
+                elif attr == "url":
+                    try:
+                        req.url = val
+                    except ValueError as e:
+                        raise exceptions.CommandError(
+                            f"URL {val!r} is invalid: {e}"
+                        ) from e
+                else:
+                    self.rupdate = False
+
+            resp = getattr(f, "response", None)
+            supdate = True
+            if resp:
+                if attr == "status_code":
+                    resp.status_code = val
+                    if val in status_codes.RESPONSES:
+                        resp.reason = status_codes.RESPONSES[val]  # type: ignore
+                elif attr == "reason":
+                    resp.reason = val
+                else:
+                    supdate = False
+
+            if rupdate or supdate:
+                updated.append(f)
+
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+        logger.log(ALERT, f"Set {attr} on  {len(updated)} flows.")
+
+    @command.command("flow.decode")
+    def decode(self, flows: Sequence[flow.Flow], part: str) -> None:
+        """
+        Decode flows.
+        """
+        updated = []
+        for f in flows:
+            p = getattr(f, part, None)
+            if p:
+                f.backup()
+                p.decode()
+                updated.append(f)
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+        logger.log(ALERT, "Decoded %s flows." % len(updated))
+
+    @command.command("flow.encode.toggle")
+    def encode_toggle(self, flows: Sequence[flow.Flow], part: str) -> None:
+        """
+        Toggle flow encoding on and off, using deflate for encoding.
+        """
+        updated = []
+        for f in flows:
+            p = getattr(f, part, None)
+            if p:
+                f.backup()
+                current_enc = p.headers.get("content-encoding", "identity")
+                if current_enc == "identity":
+                    p.encode("deflate")
+                else:
+                    p.decode()
+                updated.append(f)
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+        logger.log(ALERT, "Toggled encoding on %s flows." % len(updated))
+
+    @command.command("flow.encode")
+    @command.argument("encoding", type=mitmproxy.types.Choice("flow.encode.options"))
+    def encode(
+        self,
+        flows: Sequence[flow.Flow],
+        part: str,
+        encoding: str,
+    ) -> None:
+        """
+        Encode flows with a specified encoding.
+        """
+        updated = []
+        for f in flows:
+            p = getattr(f, part, None)
+            if p:
+                current_enc = p.headers.get("content-encoding", "identity")
+                if current_enc == "identity":
+                    f.backup()
+                    p.encode(encoding)
+                    updated.append(f)
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+        logger.log(ALERT, "Encoded %s flows." % len(updated))
+
+    @command.command("flow.encode.options")
+    def encode_options(self) -> Sequence[str]:
+        """
+        The possible values for an encoding specification.
+        """
+        return ["gzip", "deflate", "br", "zstd"]
+
+    @command.command("options.load")
+    def options_load(self, path: mitmproxy.types.Path) -> None:
+        """
+        Load options from a file.
+        """
+        try:
+            optmanager.load_paths(ctx.options, path)
+        except (OSError, exceptions.OptionsError) as e:
+            raise exceptions.CommandError("Could not load options - %s" % e) from e
+
+    @command.command("options.save")
+    def options_save(self, path: mitmproxy.types.Path) -> None:
+        """
+        Save options to a file.
+        """
+        try:
+            optmanager.save(ctx.options, path)
+        except OSError as e:
+            raise exceptions.CommandError("Could not save options - %s" % e) from e
+
+    @command.command("options.reset")
+    def options_reset(self) -> None:
+        """
+        Reset all options to defaults.
+        """
+        ctx.options.reset()
+
+    @command.command("options.reset.one")
+    def options_reset_one(self, name: str) -> None:
+        """
+        Reset one option to its default value.
+        """
+        if name not in ctx.options:
+            raise exceptions.CommandError("No such option: %s" % name)
+        setattr(
+            ctx.options,
+            name,
+            ctx.options.default(name),
+        )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/cut.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/cut.py
new file mode 100644
index 0000000000000000000000000000000000000000..c8be9112720a90a9f77e93092ae18449422b9caa
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/cut.py
@@ -0,0 +1,176 @@
+import csv
+import io
+import logging
+import os.path
+from collections.abc import Sequence
+from typing import Any
+
+import pyperclip
+
+import mitmproxy.types
+from mitmproxy import certs
+from mitmproxy import command
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import http
+from mitmproxy.log import ALERT
+
+logger = logging.getLogger(__name__)
+
+
+def headername(spec: str):
+    if not (spec.startswith("header[") and spec.endswith("]")):
+        raise exceptions.CommandError("Invalid header spec: %s" % spec)
+    return spec[len("header[") : -1].strip()
+
+
+def is_addr(v):
+    return isinstance(v, tuple) and len(v) > 1
+
+
+def extract(cut: str, f: flow.Flow) -> str | bytes:
+    # Hack for https://github.com/mitmproxy/mitmproxy/issues/6721:
+    # Make "save body" keybind work for WebSocket flows.
+    # Ideally the keybind would be smarter and this here can get removed.
+    if (
+        isinstance(f, http.HTTPFlow)
+        and f.websocket
+        and cut in ("request.content", "response.content")
+    ):
+        return f.websocket._get_formatted_messages()
+
+    path = cut.split(".")
+    current: Any = f
+    for i, spec in enumerate(path):
+        if spec.startswith("_"):
+            raise exceptions.CommandError("Can't access internal attribute %s" % spec)
+
+        part = getattr(current, spec, None)
+        if i == len(path) - 1:
+            if spec == "port" and is_addr(current):
+                return str(current[1])
+            if spec == "host" and is_addr(current):
+                return str(current[0])
+            elif spec.startswith("header["):
+                if not current:
+                    return ""
+                return current.headers.get(headername(spec), "")
+            elif isinstance(part, bytes):
+                return part
+            elif isinstance(part, bool):
+                return "true" if part else "false"
+            elif isinstance(part, certs.Cert):  # pragma: no cover
+                return part.to_pem().decode("ascii")
+            elif (
+                isinstance(part, list)
+                and len(part) > 0
+                and isinstance(part[0], certs.Cert)
+            ):
+                # TODO: currently this extracts only the very first cert as PEM-encoded string.
+                return part[0].to_pem().decode("ascii")
+        current = part
+    return str(current or "")
+
+
+def extract_str(cut: str, f: flow.Flow) -> str:
+    ret = extract(cut, f)
+    if isinstance(ret, bytes):
+        return repr(ret)
+    else:
+        return ret
+
+
+class Cut:
+    @command.command("cut")
+    def cut(
+        self,
+        flows: Sequence[flow.Flow],
+        cuts: mitmproxy.types.CutSpec,
+    ) -> mitmproxy.types.Data:
+        """
+        Cut data from a set of flows. Cut specifications are attribute paths
+        from the base of the flow object, with a few conveniences - "port"
+        and "host" retrieve parts of an address tuple, ".header[key]"
+        retrieves a header value. Return values converted to strings or
+        bytes: SSL certificates are converted to PEM format, bools are "true"
+        or "false", "bytes" are preserved, and all other values are
+        converted to strings.
+        """
+        ret: list[list[str | bytes]] = []
+        for f in flows:
+            ret.append([extract(c, f) for c in cuts])
+        return ret  # type: ignore
+
+    @command.command("cut.save")
+    def save(
+        self,
+        flows: Sequence[flow.Flow],
+        cuts: mitmproxy.types.CutSpec,
+        path: mitmproxy.types.Path,
+    ) -> None:
+        """
+        Save cuts to file. If there are multiple flows or cuts, the format
+        is UTF-8 encoded CSV. If there is exactly one row and one column,
+        the data is written to file as-is, with raw bytes preserved. If the
+        path is prefixed with a "+", values are appended if there is an
+        existing file.
+        """
+        append = False
+        if path.startswith("+"):
+            append = True
+            epath = os.path.expanduser(path[1:])
+            path = mitmproxy.types.Path(epath)
+        try:
+            if len(cuts) == 1 and len(flows) == 1:
+                with open(path, "ab" if append else "wb") as fp:
+                    if fp.tell() > 0:
+                        # We're appending to a file that already exists and has content
+                        fp.write(b"\n")
+                    v = extract(cuts[0], flows[0])
+                    if isinstance(v, bytes):
+                        fp.write(v)
+                    else:
+                        fp.write(v.encode("utf8"))
+                logger.log(ALERT, "Saved single cut.")
+            else:
+                with open(
+                    path, "a" if append else "w", newline="", encoding="utf8"
+                ) as tfp:
+                    writer = csv.writer(tfp)
+                    for f in flows:
+                        vals = [extract_str(c, f) for c in cuts]
+                        writer.writerow(vals)
+                logger.log(
+                    ALERT,
+                    "Saved %s cuts over %d flows as CSV." % (len(cuts), len(flows)),
+                )
+        except OSError as e:
+            logger.error(str(e))
+
+    @command.command("cut.clip")
+    def clip(
+        self,
+        flows: Sequence[flow.Flow],
+        cuts: mitmproxy.types.CutSpec,
+    ) -> None:
+        """
+        Send cuts to the clipboard. If there are multiple flows or cuts, the
+        format is UTF-8 encoded CSV. If there is exactly one row and one
+        column, the data is written to file as-is, with raw bytes preserved.
+        """
+        v: str | bytes
+        fp = io.StringIO(newline="")
+        if len(cuts) == 1 and len(flows) == 1:
+            v = extract_str(cuts[0], flows[0])
+            fp.write(v)
+            logger.log(ALERT, "Clipped single cut.")
+        else:
+            writer = csv.writer(fp)
+            for f in flows:
+                vals = [extract_str(c, f) for c in cuts]
+                writer.writerow(vals)
+            logger.log(ALERT, "Clipped %s cuts as CSV." % len(cuts))
+        try:
+            pyperclip.copy(fp.getvalue())
+        except pyperclip.PyperclipException as e:
+            logger.error(str(e))
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/disable_h2c.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/disable_h2c.py
new file mode 100644
index 0000000000000000000000000000000000000000..432dc5424d471a3897d059bb66f3c6d9c5058f6f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/disable_h2c.py
@@ -0,0 +1,42 @@
+import logging
+
+
+class DisableH2C:
+    """
+    We currently only support HTTP/2 over a TLS connection.
+
+    Some clients try to upgrade a connection from HTTP/1.1 to h2c. We need to
+    remove those headers to avoid protocol errors if one endpoints suddenly
+    starts sending HTTP/2 frames.
+
+    Some clients might use HTTP/2 Prior Knowledge to directly initiate a session
+    by sending the connection preface. We just kill those flows.
+    """
+
+    def process_flow(self, f):
+        if f.request.headers.get("upgrade", "") == "h2c":
+            logging.warning(
+                "HTTP/2 cleartext connections (h2c upgrade requests) are currently not supported."
+            )
+            del f.request.headers["upgrade"]
+            if "connection" in f.request.headers:
+                del f.request.headers["connection"]
+            if "http2-settings" in f.request.headers:
+                del f.request.headers["http2-settings"]
+
+        is_connection_preface = (
+            f.request.method == "PRI"
+            and f.request.path == "*"
+            and f.request.http_version == "HTTP/2.0"
+        )
+        if is_connection_preface:
+            if f.killable:
+                f.kill()
+            logging.warning(
+                "Initiating HTTP/2 connections with prior knowledge are currently not supported."
+            )
+
+    # Handlers
+
+    def request(self, f):
+        self.process_flow(f)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/dns_resolver.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/dns_resolver.py
new file mode 100644
index 0000000000000000000000000000000000000000..b1b4c039a2c1fb0f332639bbd2a81dff460d03b4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/dns_resolver.py
@@ -0,0 +1,182 @@
+from __future__ import annotations
+
+import asyncio
+import ipaddress
+import logging
+import socket
+from collections.abc import Sequence
+from functools import cache
+from typing import Protocol
+
+import mitmproxy_rs
+from mitmproxy import ctx
+from mitmproxy import dns
+from mitmproxy.flow import Error
+from mitmproxy.proxy import mode_specs
+
+logger = logging.getLogger(__name__)
+
+
+class DnsResolver:
+    def load(self, loader):
+        loader.add_option(
+            "dns_use_hosts_file",
+            bool,
+            True,
+            "Use the hosts file for DNS lookups in regular DNS mode/wireguard mode.",
+        )
+
+        loader.add_option(
+            "dns_name_servers",
+            Sequence[str],
+            [],
+            "Name servers to use for lookups in regular DNS mode/wireguard mode. Default: operating system's name servers",
+        )
+
+    def configure(self, updated):
+        if "dns_use_hosts_file" in updated or "dns_name_servers" in updated:
+            self.resolver.cache_clear()
+            self.name_servers.cache_clear()
+
+    @cache
+    def name_servers(self) -> list[str]:
+        """
+        Returns the operating system's name servers unless custom name servers are set.
+        On error, an empty list is returned.
+        """
+        try:
+            return (
+                ctx.options.dns_name_servers
+                or mitmproxy_rs.dns.get_system_dns_servers()
+            )
+        except RuntimeError as e:
+            logger.warning(
+                f"Failed to get system dns servers: {e}\n"
+                f"The dns_name_servers option needs to be set manually."
+            )
+            return []
+
+    @cache
+    def resolver(self) -> Resolver:
+        """
+        Returns:
+            The DNS resolver to use.
+        Raises:
+            MissingNameServers, if name servers are unknown and `dns_use_hosts_file` is disabled.
+        """
+        if ns := self.name_servers():
+            # We always want to use our own resolver if name server info is available.
+            return mitmproxy_rs.dns.DnsResolver(
+                name_servers=ns,
+                use_hosts_file=ctx.options.dns_use_hosts_file,
+            )
+        elif ctx.options.dns_use_hosts_file:
+            # Fallback to getaddrinfo as hickory's resolver isn't as reliable
+            # as we would like it to be (https://github.com/mitmproxy/mitmproxy/issues/7064).
+            return GetaddrinfoFallbackResolver()
+        else:
+            raise MissingNameServers()
+
+    async def dns_request(self, flow: dns.DNSFlow) -> None:
+        if self._should_resolve(flow):
+            all_ip_lookups = (
+                flow.request.query
+                and flow.request.op_code == dns.op_codes.QUERY
+                and flow.request.question
+                and flow.request.question.class_ == dns.classes.IN
+                and flow.request.question.type in (dns.types.A, dns.types.AAAA)
+            )
+            if all_ip_lookups:
+                try:
+                    flow.response = await self.resolve(flow.request)
+                except MissingNameServers:
+                    flow.error = Error("Cannot resolve, dns_name_servers unknown.")
+            elif name_servers := self.name_servers():
+                # For other records, the best we can do is to forward the query
+                # to an upstream server.
+                flow.server_conn.address = (name_servers[0], 53)
+            else:
+                flow.error = Error("Cannot resolve, dns_name_servers unknown.")
+
+    @staticmethod
+    def _should_resolve(flow: dns.DNSFlow) -> bool:
+        return (
+            (
+                isinstance(flow.client_conn.proxy_mode, mode_specs.DnsMode)
+                or (
+                    isinstance(flow.client_conn.proxy_mode, mode_specs.WireGuardMode)
+                    and flow.server_conn.address == ("10.0.0.53", 53)
+                )
+            )
+            and flow.live
+            and not flow.response
+            and not flow.error
+        )
+
+    async def resolve(
+        self,
+        message: dns.DNSMessage,
+    ) -> dns.DNSMessage:
+        q = message.question
+        assert q
+        try:
+            if q.type == dns.types.A:
+                ip_addrs = await self.resolver().lookup_ipv4(q.name)
+            else:
+                ip_addrs = await self.resolver().lookup_ipv6(q.name)
+        except socket.gaierror as e:
+            match e.args[0]:
+                case socket.EAI_NONAME:
+                    return message.fail(dns.response_codes.NXDOMAIN)
+                case socket.EAI_NODATA:
+                    ip_addrs = []
+                case _:
+                    return message.fail(dns.response_codes.SERVFAIL)
+
+        return message.succeed(
+            [
+                dns.ResourceRecord(
+                    name=q.name,
+                    type=q.type,
+                    class_=q.class_,
+                    ttl=dns.ResourceRecord.DEFAULT_TTL,
+                    data=ipaddress.ip_address(ip).packed,
+                )
+                for ip in ip_addrs
+            ]
+        )
+
+
+class Resolver(Protocol):
+    async def lookup_ip(self, domain: str) -> list[str]:  # pragma: no cover
+        ...
+
+    async def lookup_ipv4(self, domain: str) -> list[str]:  # pragma: no cover
+        ...
+
+    async def lookup_ipv6(self, domain: str) -> list[str]:  # pragma: no cover
+        ...
+
+
+class GetaddrinfoFallbackResolver(Resolver):
+    async def lookup_ip(self, domain: str) -> list[str]:
+        return await self._lookup(domain, socket.AF_UNSPEC)
+
+    async def lookup_ipv4(self, domain: str) -> list[str]:
+        return await self._lookup(domain, socket.AF_INET)
+
+    async def lookup_ipv6(self, domain: str) -> list[str]:
+        return await self._lookup(domain, socket.AF_INET6)
+
+    async def _lookup(self, domain: str, family: socket.AddressFamily) -> list[str]:
+        addrinfos = await asyncio.get_running_loop().getaddrinfo(
+            host=domain,
+            port=None,
+            family=family,
+            type=socket.SOCK_STREAM,
+        )
+        return [addrinfo[4][0] for addrinfo in addrinfos]
+
+
+class MissingNameServers(RuntimeError):
+    pass
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/dumper.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/dumper.py
new file mode 100644
index 0000000000000000000000000000000000000000..30ddac38c5c4698358b19e4026f12b2a7872cc4d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/dumper.py
@@ -0,0 +1,427 @@
+from __future__ import annotations
+
+import shutil
+import sys
+from typing import IO
+from typing import Optional
+
+from wsproto.frame_protocol import CloseReason
+
+import mitmproxy_rs
+from mitmproxy import contentviews
+from mitmproxy import ctx
+from mitmproxy import dns
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy.contrib import click as miniclick
+from mitmproxy.net.dns import response_codes
+from mitmproxy.options import CONTENT_VIEW_LINES_CUTOFF
+from mitmproxy.tcp import TCPFlow
+from mitmproxy.tcp import TCPMessage
+from mitmproxy.udp import UDPFlow
+from mitmproxy.udp import UDPMessage
+from mitmproxy.utils import human
+from mitmproxy.utils import strutils
+from mitmproxy.utils import vt_codes
+from mitmproxy.websocket import WebSocketData
+from mitmproxy.websocket import WebSocketMessage
+
+
+def indent(n: int, text: str) -> str:
+    lines = str(text).strip().splitlines()
+    pad = " " * n
+    return "\n".join(pad + i for i in lines)
+
+
+CONTENTVIEW_STYLES: dict[str, dict[str, str | bool]] = {
+    "name": dict(fg="yellow"),
+    "string": dict(fg="green"),
+    "number": dict(fg="blue"),
+    "boolean": dict(fg="magenta"),
+    "comment": dict(dim=True),
+    "error": dict(fg="red"),
+}
+
+
+class Dumper:
+    def __init__(self, outfile: IO[str] | None = None):
+        self.filter: flowfilter.TFilter | None = None
+        self.outfp: IO[str] = outfile or sys.stdout
+        self.out_has_vt_codes = vt_codes.ensure_supported(self.outfp)
+
+    def load(self, loader):
+        loader.add_option(
+            "flow_detail",
+            int,
+            1,
+            f"""
+            The display detail level for flows in mitmdump: 0 (quiet) to 4 (very verbose).
+              0: no output
+              1: shortened request URL with response status code
+              2: full request URL with response status code and HTTP headers
+              3: 2 + truncated response content, content of WebSocket and TCP messages (content_view_lines_cutoff: {CONTENT_VIEW_LINES_CUTOFF})
+              4: 3 + nothing is truncated
+            """,
+        )
+        loader.add_option(
+            "dumper_default_contentview",
+            str,
+            "auto",
+            "The default content view mode.",
+            choices=contentviews.registry.available_views(),
+        )
+        loader.add_option(
+            "dumper_filter", Optional[str], None, "Limit which flows are dumped."
+        )
+
+    def configure(self, updated):
+        if "dumper_filter" in updated:
+            if ctx.options.dumper_filter:
+                try:
+                    self.filter = flowfilter.parse(ctx.options.dumper_filter)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            else:
+                self.filter = None
+
+    def style(self, text: str, **style) -> str:
+        if style and self.out_has_vt_codes:
+            text = miniclick.style(text, **style)
+        return text
+
+    def echo(self, text: str, ident=None, **style):
+        if ident:
+            text = indent(ident, text)
+        text = self.style(text, **style)
+        print(text, file=self.outfp)
+
+    def _echo_headers(self, headers: http.Headers):
+        for k, v in headers.fields:
+            ks = strutils.bytes_to_escaped_str(k)
+            ks = self.style(ks, fg="blue")
+            vs = strutils.bytes_to_escaped_str(v)
+            self.echo(f"{ks}: {vs}", ident=4)
+
+    def _echo_trailers(self, trailers: http.Headers | None):
+        if not trailers:
+            return
+        self.echo("--- HTTP Trailers", fg="magenta", ident=4)
+        self._echo_headers(trailers)
+
+    def _echo_message(
+        self,
+        message: http.Message | TCPMessage | UDPMessage | WebSocketMessage,
+        flow: http.HTTPFlow | TCPFlow | UDPFlow,
+    ):
+        pretty = contentviews.prettify_message(
+            message,
+            flow,
+            ctx.options.dumper_default_contentview,
+        )
+
+        if ctx.options.flow_detail == 3:
+            content_to_echo = strutils.cut_after_n_lines(
+                pretty.text, ctx.options.content_view_lines_cutoff
+            )
+        else:
+            content_to_echo = pretty.text
+
+        if content_to_echo:
+            highlighted = mitmproxy_rs.syntax_highlight.highlight(
+                pretty.text, pretty.syntax_highlight
+            )
+            self.echo("")
+            self.echo(
+                "".join(
+                    self.style(chunk, **CONTENTVIEW_STYLES.get(tag, {}))
+                    for tag, chunk in highlighted
+                ),
+                ident=4,
+            )
+
+        if len(content_to_echo) < len(pretty.text):
+            self.echo("(cut off)", ident=4, dim=True)
+
+        if ctx.options.flow_detail >= 2:
+            self.echo("")
+
+    def _fmt_client(self, flow: flow.Flow) -> str:
+        if flow.is_replay == "request":
+            return self.style("[replay]", fg="yellow", bold=True)
+        elif flow.client_conn.peername:
+            return self.style(
+                strutils.escape_control_characters(
+                    human.format_address(flow.client_conn.peername)
+                )
+            )
+        else:  # pragma: no cover
+            # this should not happen, but we're defensive here.
+            return ""
+
+    def _echo_request_line(self, flow: http.HTTPFlow) -> None:
+        client = self._fmt_client(flow)
+
+        pushed = " PUSH_PROMISE" if "h2-pushed-stream" in flow.metadata else ""
+        method = flow.request.method + pushed
+        method_color = dict(GET="green", DELETE="red").get(method.upper(), "magenta")
+        method = self.style(
+            strutils.escape_control_characters(method), fg=method_color, bold=True
+        )
+        if ctx.options.showhost:
+            url = flow.request.pretty_url
+        else:
+            url = flow.request.url
+
+        if ctx.options.flow_detail == 1:
+            # We need to truncate before applying styles, so we just focus on the URL.
+            terminal_width_limit = max(shutil.get_terminal_size()[0] - 25, 50)
+            if len(url) > terminal_width_limit:
+                url = url[:terminal_width_limit] + "…"
+        url = self.style(strutils.escape_control_characters(url), bold=True)
+
+        http_version = ""
+        if not (
+            flow.request.is_http10 or flow.request.is_http11
+        ) or flow.request.http_version != getattr(
+            flow.response, "http_version", "HTTP/1.1"
+        ):
+            # Hide version for h1 <-> h1 connections.
+            http_version = " " + flow.request.http_version
+
+        self.echo(f"{client}: {method} {url}{http_version}")
+
+    def _echo_response_line(self, flow: http.HTTPFlow) -> None:
+        if flow.is_replay == "response":
+            replay_str = "[replay]"
+            replay = self.style(replay_str, fg="yellow", bold=True)
+        else:
+            replay_str = ""
+            replay = ""
+
+        assert flow.response
+        code_int = flow.response.status_code
+        code_color = None
+        if 200 <= code_int < 300:
+            code_color = "green"
+        elif 300 <= code_int < 400:
+            code_color = "magenta"
+        elif 400 <= code_int < 600:
+            code_color = "red"
+        code = self.style(
+            str(code_int),
+            fg=code_color,
+            bold=True,
+            blink=(code_int == 418),
+        )
+
+        if not (flow.response.is_http2 or flow.response.is_http3):
+            reason = flow.response.reason
+        else:
+            reason = http.status_codes.RESPONSES.get(flow.response.status_code, "")
+        reason = self.style(
+            strutils.escape_control_characters(reason), fg=code_color, bold=True
+        )
+
+        if flow.response.raw_content is None:
+            size = "(content missing)"
+        else:
+            size = human.pretty_size(len(flow.response.raw_content))
+        size = self.style(size, bold=True)
+
+        http_version = ""
+        if (
+            not (flow.response.is_http10 or flow.response.is_http11)
+            or flow.request.http_version != flow.response.http_version
+        ):
+            # Hide version for h1 <-> h1 connections.
+            http_version = f"{flow.response.http_version} "
+
+        arrows = self.style(" <<", bold=True)
+        if ctx.options.flow_detail == 1:
+            # This aligns the HTTP response code with the HTTP request method:
+            # 127.0.0.1:59519: GET http://example.com/
+            #               << 304 Not Modified 0b
+            pad = max(
+                0,
+                len(human.format_address(flow.client_conn.peername))
+                - (2 + len(http_version) + len(replay_str)),
+            )
+            arrows = " " * pad + arrows
+
+        self.echo(f"{replay}{arrows} {http_version}{code} {reason} {size}")
+
+    def echo_flow(self, f: http.HTTPFlow) -> None:
+        if f.request:
+            self._echo_request_line(f)
+            if ctx.options.flow_detail >= 2:
+                self._echo_headers(f.request.headers)
+            if ctx.options.flow_detail >= 3:
+                self._echo_message(f.request, f)
+            if ctx.options.flow_detail >= 2:
+                self._echo_trailers(f.request.trailers)
+
+        if f.response:
+            self._echo_response_line(f)
+            if ctx.options.flow_detail >= 2:
+                self._echo_headers(f.response.headers)
+            if ctx.options.flow_detail >= 3:
+                self._echo_message(f.response, f)
+            if ctx.options.flow_detail >= 2:
+                self._echo_trailers(f.response.trailers)
+
+        if f.error:
+            msg = strutils.escape_control_characters(f.error.msg)
+            self.echo(f" << {msg}", bold=True, fg="red")
+
+        self.outfp.flush()
+
+    def match(self, f):
+        if ctx.options.flow_detail == 0:
+            return False
+        if not self.filter:
+            return True
+        elif flowfilter.match(self.filter, f):
+            return True
+        return False
+
+    def response(self, f):
+        if self.match(f):
+            self.echo_flow(f)
+
+    def error(self, f):
+        if self.match(f):
+            self.echo_flow(f)
+
+    def http_connect_error(self, f):
+        if self.match(f):
+            self.echo_flow(f)
+
+    def websocket_message(self, f: http.HTTPFlow):
+        assert f.websocket is not None  # satisfy type checker
+        if self.match(f):
+            message = f.websocket.messages[-1]
+
+            direction = "->" if message.from_client else "<-"
+            self.echo(
+                f"{human.format_address(f.client_conn.peername)} "
+                f"{direction} WebSocket {message.type.name.lower()} message "
+                f"{direction} {human.format_address(f.server_conn.address)}{f.request.path}"
+            )
+            if ctx.options.flow_detail >= 3:
+                self._echo_message(message, f)
+
+    def websocket_end(self, f: http.HTTPFlow):
+        assert f.websocket is not None  # satisfy type checker
+        if self.match(f):
+            if f.websocket.close_code in {1000, 1001, 1005}:
+                c = "client" if f.websocket.closed_by_client else "server"
+                self.echo(
+                    f"WebSocket connection closed by {c}: {f.websocket.close_code} {f.websocket.close_reason}"
+                )
+            else:
+                error = flow.Error(
+                    f"WebSocket Error: {self.format_websocket_error(f.websocket)}"
+                )
+                self.echo(
+                    f"Error in WebSocket connection to {human.format_address(f.server_conn.address)}: {error}",
+                    fg="red",
+                )
+
+    def format_websocket_error(self, websocket: WebSocketData) -> str:
+        try:
+            ret = CloseReason(websocket.close_code).name  # type: ignore
+        except ValueError:
+            ret = f"UNKNOWN_ERROR={websocket.close_code}"
+        if websocket.close_reason:
+            ret += f" (reason: {websocket.close_reason})"
+        return ret
+
+    def _proto_error(self, f):
+        if self.match(f):
+            self.echo(
+                f"Error in {f.type.upper()} connection to {human.format_address(f.server_conn.address)}: {f.error}",
+                fg="red",
+            )
+
+    def tcp_error(self, f):
+        self._proto_error(f)
+
+    def udp_error(self, f):
+        self._proto_error(f)
+
+    def _proto_message(self, f: TCPFlow | UDPFlow) -> None:
+        if self.match(f):
+            message = f.messages[-1]
+            direction = "->" if message.from_client else "<-"
+            if f.client_conn.tls_version == "QUICv1":
+                if f.type == "tcp":
+                    quic_type = "stream"
+                else:
+                    quic_type = "dgrams"
+                # TODO: This should not be metadata, this should be typed attributes.
+                flow_type = (
+                    f"quic {quic_type} {f.metadata.get('quic_stream_id_client', '')} "
+                    f"{direction} mitmproxy {direction} "
+                    f"quic {quic_type} {f.metadata.get('quic_stream_id_server', '')}"
+                )
+            else:
+                flow_type = f.type
+            self.echo(
+                "{client} {direction} {type} {direction} {server}".format(
+                    client=human.format_address(f.client_conn.peername),
+                    server=human.format_address(f.server_conn.address),
+                    direction=direction,
+                    type=flow_type,
+                )
+            )
+            if ctx.options.flow_detail >= 3:
+                self._echo_message(message, f)
+
+    def tcp_message(self, f):
+        self._proto_message(f)
+
+    def udp_message(self, f):
+        self._proto_message(f)
+
+    def _echo_dns_query(self, f: dns.DNSFlow) -> None:
+        client = self._fmt_client(f)
+        opcode = dns.op_codes.to_str(f.request.op_code)
+        type = dns.types.to_str(f.request.questions[0].type)
+
+        desc = f"DNS {opcode} ({type})"
+        desc_color = {
+            "A": "green",
+            "AAAA": "magenta",
+        }.get(type, "red")
+        desc = self.style(desc, fg=desc_color)
+
+        name = self.style(f.request.questions[0].name, bold=True)
+        self.echo(f"{client}: {desc} {name}")
+
+    def dns_response(self, f: dns.DNSFlow):
+        assert f.response
+        if self.match(f):
+            self._echo_dns_query(f)
+
+            arrows = self.style(" <<", bold=True)
+            if f.response.answers:
+                answers = ", ".join(
+                    self.style(str(x), fg="bright_blue") for x in f.response.answers
+                )
+            else:
+                answers = self.style(
+                    response_codes.to_str(
+                        f.response.response_code,
+                    ),
+                    fg="red",
+                )
+            self.echo(f"{arrows} {answers}")
+
+    def dns_error(self, f: dns.DNSFlow):
+        assert f.error
+        if self.match(f):
+            self._echo_dns_query(f)
+            msg = strutils.escape_control_characters(f.error.msg)
+            self.echo(f" << {msg}", bold=True, fg="red")
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/errorcheck.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/errorcheck.py
new file mode 100644
index 0000000000000000000000000000000000000000..c46f920354d07924fbfec3d8c56093956e608c71
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/errorcheck.py
@@ -0,0 +1,55 @@
+import asyncio
+import logging
+import sys
+
+from mitmproxy import log
+from mitmproxy.contrib import click as miniclick
+from mitmproxy.utils import vt_codes
+
+
+class ErrorCheck:
+    """Monitor startup for error log entries, and terminate immediately if there are some."""
+
+    repeat_errors_on_stderr: bool
+    """
+    Repeat all errors on stderr before exiting.
+    This is useful for the console UI, which otherwise swallows all output.
+    """
+
+    def __init__(self, repeat_errors_on_stderr: bool = False) -> None:
+        self.repeat_errors_on_stderr = repeat_errors_on_stderr
+
+        self.logger = ErrorCheckHandler()
+        self.logger.install()
+
+    def finish(self):
+        self.logger.uninstall()
+
+    async def shutdown_if_errored(self):
+        # don't run immediately, wait for all logging tasks to finish.
+        await asyncio.sleep(0)
+        if self.logger.has_errored:
+            plural = "s" if len(self.logger.has_errored) > 1 else ""
+            if self.repeat_errors_on_stderr:
+                message = f"Error{plural} logged during startup:"
+                if vt_codes.ensure_supported(sys.stderr):  # pragma: no cover
+                    message = miniclick.style(message, fg="red")
+                details = "\n".join(
+                    self.logger.format(r) for r in self.logger.has_errored
+                )
+                print(f"{message}\n{details}", file=sys.stderr)
+            else:
+                print(
+                    f"Error{plural} logged during startup, exiting...", file=sys.stderr
+                )
+
+            sys.exit(1)
+
+
+class ErrorCheckHandler(log.MitmLogHandler):
+    def __init__(self) -> None:
+        super().__init__(logging.ERROR)
+        self.has_errored: list[logging.LogRecord] = []
+
+    def emit(self, record: logging.LogRecord) -> None:
+        self.has_errored.append(record)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/eventstore.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/eventstore.py
new file mode 100644
index 0000000000000000000000000000000000000000..b474a5f7c0ef8f645f665d71ff8a5ad991546192
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/eventstore.py
@@ -0,0 +1,56 @@
+import asyncio
+import collections
+import logging
+from collections.abc import Callable
+
+from mitmproxy import command
+from mitmproxy import log
+from mitmproxy.log import LogEntry
+from mitmproxy.utils import signals
+
+
+class EventStore:
+    def __init__(self, size: int = 10000) -> None:
+        self.data: collections.deque[LogEntry] = collections.deque(maxlen=size)
+        self.sig_add = signals.SyncSignal(lambda entry: None)
+        self.sig_refresh = signals.SyncSignal(lambda: None)
+
+        self.logger = CallbackLogger(self._add_log)
+        self.logger.install()
+
+    def done(self):
+        self.logger.uninstall()
+
+    def _add_log(self, entry: LogEntry) -> None:
+        self.data.append(entry)
+        self.sig_add.send(entry)
+
+    @property
+    def size(self) -> int | None:
+        return self.data.maxlen
+
+    @command.command("eventstore.clear")
+    def clear(self) -> None:
+        """
+        Clear the event log.
+        """
+        self.data.clear()
+        self.sig_refresh.send()
+
+
+class CallbackLogger(log.MitmLogHandler):
+    def __init__(
+        self,
+        callback: Callable[[LogEntry], None],
+    ):
+        super().__init__()
+        self.callback = callback
+        self.event_loop = asyncio.get_running_loop()
+        self.formatter = log.MitmFormatter(colorize=False)
+
+    def emit(self, record: logging.LogRecord) -> None:
+        entry = LogEntry(
+            msg=self.format(record),
+            level=log.LOGGING_LEVELS_TO_LOGENTRY.get(record.levelno, "error"),
+        )
+        self.event_loop.call_soon_threadsafe(self.callback, entry)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/export.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/export.py
new file mode 100644
index 0000000000000000000000000000000000000000..4f136bcbad88e922244170cd51444a7d198f8322
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/export.py
@@ -0,0 +1,232 @@
+import logging
+import shlex
+from collections.abc import Callable
+from collections.abc import Sequence
+
+import pyperclip
+
+import mitmproxy.types
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import http
+from mitmproxy.net.http.http1 import assemble
+from mitmproxy.utils import strutils
+
+
+def cleanup_request(f: flow.Flow) -> http.Request:
+    if not getattr(f, "request", None):
+        raise exceptions.CommandError("Can't export flow with no request.")
+    assert isinstance(f, http.HTTPFlow)
+    request = f.request.copy()
+    request.decode(strict=False)
+    return request
+
+
+def pop_headers(request: http.Request) -> None:
+    """Remove some headers that are redundant for curl/httpie export."""
+    request.headers.pop("content-length", None)
+
+    if request.headers.get("host", "") == request.host:
+        request.headers.pop("host")
+    if request.headers.get(":authority", "") == request.host:
+        request.headers.pop(":authority")
+
+
+def cleanup_response(f: flow.Flow) -> http.Response:
+    if not getattr(f, "response", None):
+        raise exceptions.CommandError("Can't export flow with no response.")
+    assert isinstance(f, http.HTTPFlow)
+    response = f.response.copy()  # type: ignore
+    response.decode(strict=False)
+    return response
+
+
+def request_content_for_console(request: http.Request) -> str:
+    try:
+        text = request.get_text(strict=True)
+        assert text
+    except ValueError:
+        # shlex.quote doesn't support a bytes object
+        # see https://github.com/python/cpython/pull/10871
+        raise exceptions.CommandError("Request content must be valid unicode")
+    escape_control_chars = {chr(i): f"\\x{i:02x}" for i in range(32)}
+    escaped_text = "".join(escape_control_chars.get(x, x) for x in text)
+    if any(char in escape_control_chars for char in text):
+        # Escaped chars need to be unescaped by the shell to be properly inperpreted by curl and httpie
+        return f'"$(printf {shlex.quote(escaped_text)})"'
+
+    return shlex.quote(escaped_text)
+
+
+def curl_command(f: flow.Flow) -> str:
+    request = cleanup_request(f)
+    pop_headers(request)
+
+    args = ["curl"]
+
+    server_addr = f.server_conn.peername[0] if f.server_conn.peername else None
+
+    if (
+        ctx.options.export_preserve_original_ip
+        and server_addr
+        and request.pretty_host != server_addr
+    ):
+        resolve = f"{request.pretty_host}:{request.port}:[{server_addr}]"
+        args.append("--resolve")
+        args.append(resolve)
+
+    for k, v in request.headers.items(multi=True):
+        if k.lower() == "accept-encoding":
+            args.append("--compressed")
+        else:
+            args += ["-H", f"{k}: {v}"]
+
+    if request.method != "GET":
+        if not request.content:
+            # curl will not calculate content-length if there is no content
+            # some server/verb combinations require content-length headers
+            # (ex. nginx and POST)
+            args += ["-H", "content-length: 0"]
+
+        args += ["-X", request.method]
+
+    args.append(request.pretty_url)
+
+    command = " ".join(shlex.quote(arg) for arg in args)
+    if request.content:
+        command += f" -d {request_content_for_console(request)}"
+    return command
+
+
+def httpie_command(f: flow.Flow) -> str:
+    request = cleanup_request(f)
+    pop_headers(request)
+
+    # TODO: Once https://github.com/httpie/httpie/issues/414 is implemented, we
+    # should ensure we always connect to the IP address specified in the flow,
+    # similar to how it's done in curl_command.
+    url = request.pretty_url
+
+    args = ["http", request.method, url]
+    for k, v in request.headers.items(multi=True):
+        args.append(f"{k}: {v}")
+    cmd = " ".join(shlex.quote(arg) for arg in args)
+    if request.content:
+        cmd += " <<< " + request_content_for_console(request)
+    return cmd
+
+
+def raw_request(f: flow.Flow) -> bytes:
+    request = cleanup_request(f)
+    if request.raw_content is None:
+        raise exceptions.CommandError("Request content missing.")
+    return assemble.assemble_request(request)
+
+
+def raw_response(f: flow.Flow) -> bytes:
+    response = cleanup_response(f)
+    if response.raw_content is None:
+        raise exceptions.CommandError("Response content missing.")
+    return assemble.assemble_response(response)
+
+
+def raw(f: flow.Flow, separator=b"\r\n\r\n") -> bytes:
+    """Return either the request or response if only one exists, otherwise return both"""
+    request_present = (
+        isinstance(f, http.HTTPFlow) and f.request and f.request.raw_content is not None
+    )
+    response_present = (
+        isinstance(f, http.HTTPFlow)
+        and f.response
+        and f.response.raw_content is not None
+    )
+
+    if request_present and response_present:
+        parts = [raw_request(f), raw_response(f)]
+        if isinstance(f, http.HTTPFlow) and f.websocket:
+            parts.append(f.websocket._get_formatted_messages())
+        return separator.join(parts)
+    elif request_present:
+        return raw_request(f)
+    elif response_present:
+        return raw_response(f)
+    else:
+        raise exceptions.CommandError("Can't export flow with no request or response.")
+
+
+formats: dict[str, Callable[[flow.Flow], str | bytes]] = dict(
+    curl=curl_command,
+    httpie=httpie_command,
+    raw=raw,
+    raw_request=raw_request,
+    raw_response=raw_response,
+)
+
+
+class Export:
+    def load(self, loader):
+        loader.add_option(
+            "export_preserve_original_ip",
+            bool,
+            False,
+            """
+            When exporting a request as an external command, make an effort to
+            connect to the same IP as in the original request. This helps with
+            reproducibility in cases where the behaviour depends on the
+            particular host we are connecting to. Currently this only affects
+            curl exports.
+            """,
+        )
+
+    @command.command("export.formats")
+    def formats(self) -> Sequence[str]:
+        """
+        Return a list of the supported export formats.
+        """
+        return list(sorted(formats.keys()))
+
+    @command.command("export.file")
+    def file(self, format: str, flow: flow.Flow, path: mitmproxy.types.Path) -> None:
+        """
+        Export a flow to path.
+        """
+        if format not in formats:
+            raise exceptions.CommandError("No such export format: %s" % format)
+        v = formats[format](flow)
+        try:
+            with open(path, "wb") as fp:
+                if isinstance(v, bytes):
+                    fp.write(v)
+                else:
+                    fp.write(v.encode("utf-8", "surrogateescape"))
+        except OSError as e:
+            logging.error(str(e))
+
+    @command.command("export.clip")
+    def clip(self, format: str, f: flow.Flow) -> None:
+        """
+        Export a flow to the system clipboard.
+        """
+        content = self.export_str(format, f)
+        try:
+            pyperclip.copy(content)
+        except pyperclip.PyperclipException as e:
+            logging.error(str(e))
+
+    @command.command("export")
+    def export_str(self, format: str, f: flow.Flow) -> str:
+        """
+        Export a flow and return the result.
+        """
+        if format not in formats:
+            raise exceptions.CommandError("No such export format: %s" % format)
+
+        content = formats[format](f)
+        # The individual formatters may return surrogate-escaped UTF-8, but that may blow up in later steps.
+        # For example, pyperclip on macOS does not like surrogates.
+        # To fix this, We first surrogate-encode and then backslash-decode.
+        content = strutils.always_bytes(content, "utf8", "surrogateescape")
+        content = strutils.always_str(content, "utf8", "backslashreplace")
+        return content
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/intercept.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/intercept.py
new file mode 100644
index 0000000000000000000000000000000000000000..0749c3b17dcbd646fa575d461a0013bfe6d7decd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/intercept.py
@@ -0,0 +1,63 @@
+from typing import Optional
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import flowfilter
+
+
+class Intercept:
+    filt: flowfilter.TFilter | None = None
+
+    def load(self, loader):
+        loader.add_option("intercept_active", bool, False, "Intercept toggle")
+        loader.add_option(
+            "intercept", Optional[str], None, "Intercept filter expression."
+        )
+
+    def configure(self, updated):
+        if "intercept" in updated:
+            if ctx.options.intercept:
+                try:
+                    self.filt = flowfilter.parse(ctx.options.intercept)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+                ctx.options.intercept_active = True
+            else:
+                self.filt = None
+                ctx.options.intercept_active = False
+
+    def should_intercept(self, f: flow.Flow) -> bool:
+        return bool(
+            ctx.options.intercept_active
+            and self.filt
+            and self.filt(f)
+            and not f.is_replay
+        )
+
+    def process_flow(self, f: flow.Flow) -> None:
+        if self.should_intercept(f):
+            f.intercept()
+
+    # Handlers
+
+    def request(self, f):
+        self.process_flow(f)
+
+    def response(self, f):
+        self.process_flow(f)
+
+    def tcp_message(self, f):
+        self.process_flow(f)
+
+    def udp_message(self, f):
+        self.process_flow(f)
+
+    def dns_request(self, f):
+        self.process_flow(f)
+
+    def dns_response(self, f):
+        self.process_flow(f)
+
+    def websocket_message(self, f):
+        self.process_flow(f)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/keepserving.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/keepserving.py
new file mode 100644
index 0000000000000000000000000000000000000000..4e8d8188b1ae7afaed9fd137d6986281bfa12e7e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/keepserving.py
@@ -0,0 +1,54 @@
+from __future__ import annotations
+
+import asyncio
+
+from mitmproxy import ctx
+from mitmproxy.utils import asyncio_utils
+
+
+class KeepServing:
+    def load(self, loader):
+        loader.add_option(
+            "keepserving",
+            bool,
+            False,
+            """
+            Continue serving after client playback, server playback or file
+            read. This option is ignored by interactive tools, which always keep
+            serving.
+            """,
+        )
+
+    def keepgoing(self) -> bool:
+        # Checking for proxyserver.active_connections is important for server replay,
+        # the addon may report that replay is finished but not the entire response has been sent yet.
+        # (https://github.com/mitmproxy/mitmproxy/issues/7569)
+        checks = [
+            "readfile.reading",
+            "replay.client.count",
+            "replay.server.count",
+            "proxyserver.active_connections",
+        ]
+        return any([ctx.master.commands.call(c) for c in checks])
+
+    def shutdown(self):  # pragma: no cover
+        ctx.master.shutdown()
+
+    async def watch(self):
+        while True:
+            await asyncio.sleep(0.1)
+            if not self.keepgoing():
+                self.shutdown()
+
+    def running(self):
+        opts = [
+            ctx.options.client_replay,
+            ctx.options.server_replay,
+            ctx.options.rfile,
+        ]
+        if any(opts) and not ctx.options.keepserving:
+            asyncio_utils.create_task(
+                self.watch(),
+                name="keepserving",
+                keep_ref=True,
+            )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/maplocal.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/maplocal.py
new file mode 100644
index 0000000000000000000000000000000000000000..5b1abd0b5385375f3bf82a948ce722f5c5f4c601
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/maplocal.py
@@ -0,0 +1,151 @@
+import logging
+import mimetypes
+import re
+import urllib.parse
+from collections.abc import Sequence
+from pathlib import Path
+from typing import NamedTuple
+
+from werkzeug.security import safe_join
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy import version
+from mitmproxy.utils.spec import parse_spec
+
+
+class MapLocalSpec(NamedTuple):
+    matches: flowfilter.TFilter
+    regex: str
+    local_path: Path
+
+
+def parse_map_local_spec(option: str) -> MapLocalSpec:
+    filter, regex, replacement = parse_spec(option)
+
+    try:
+        re.compile(regex)
+    except re.error as e:
+        raise ValueError(f"Invalid regular expression {regex!r} ({e})")
+
+    try:
+        path = Path(replacement).expanduser().resolve(strict=True)
+    except FileNotFoundError as e:
+        raise ValueError(f"Invalid file path: {replacement} ({e})")
+
+    return MapLocalSpec(filter, regex, path)
+
+
+def _safe_path_join(root: Path, untrusted: str) -> Path:
+    """Join a Path element with an untrusted str.
+
+    This is a convenience wrapper for werkzeug's safe_join,
+    raising a ValueError if the path is malformed."""
+    untrusted_parts = Path(untrusted).parts
+    joined = safe_join(root.as_posix(), *untrusted_parts)
+    if joined is None:
+        raise ValueError("Untrusted paths.")
+    return Path(joined)
+
+
+def file_candidates(url: str, spec: MapLocalSpec) -> list[Path]:
+    """
+    Get all potential file candidates given a URL and a mapping spec ordered by preference.
+    This function already assumes that the spec regex matches the URL.
+    """
+    m = re.search(spec.regex, url)
+    assert m
+    if m.groups():
+        suffix = m.group(1)
+    else:
+        suffix = re.split(spec.regex, url, maxsplit=1)[1]
+        suffix = suffix.split("?")[0]  # remove query string
+        suffix = suffix.strip("/")
+
+    if suffix:
+        decoded_suffix = urllib.parse.unquote(suffix)
+        suffix_candidates = [decoded_suffix, f"{decoded_suffix}/index.html"]
+
+        escaped_suffix = re.sub(r"[^0-9a-zA-Z\-_.=(),/]", "_", decoded_suffix)
+        if decoded_suffix != escaped_suffix:
+            suffix_candidates.extend([escaped_suffix, f"{escaped_suffix}/index.html"])
+        try:
+            return [_safe_path_join(spec.local_path, x) for x in suffix_candidates]
+        except ValueError:
+            return []
+    else:
+        return [spec.local_path / "index.html"]
+
+
+class MapLocal:
+    def __init__(self) -> None:
+        self.replacements: list[MapLocalSpec] = []
+
+    def load(self, loader):
+        loader.add_option(
+            "map_local",
+            Sequence[str],
+            [],
+            """
+            Map remote resources to a local file using a pattern of the form
+            "[/flow-filter]/url-regex/file-or-directory-path", where the
+            separator can be any character.
+            """,
+        )
+
+    def configure(self, updated):
+        if "map_local" in updated:
+            self.replacements = []
+            for option in ctx.options.map_local:
+                try:
+                    spec = parse_map_local_spec(option)
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Cannot parse map_local option {option}: {e}"
+                    ) from e
+
+                self.replacements.append(spec)
+
+    def request(self, flow: http.HTTPFlow) -> None:
+        if flow.response or flow.error or not flow.live:
+            return
+
+        url = flow.request.pretty_url
+
+        all_candidates = []
+        for spec in self.replacements:
+            if spec.matches(flow) and re.search(spec.regex, url):
+                if spec.local_path.is_file():
+                    candidates = [spec.local_path]
+                else:
+                    candidates = file_candidates(url, spec)
+                all_candidates.extend(candidates)
+
+                local_file = None
+                for candidate in candidates:
+                    if candidate.is_file():
+                        local_file = candidate
+                        break
+
+                if local_file:
+                    headers = {"Server": version.MITMPROXY}
+                    mimetype = mimetypes.guess_type(str(local_file))[0]
+                    if mimetype:
+                        headers["Content-Type"] = mimetype
+
+                    try:
+                        contents = local_file.read_bytes()
+                    except OSError as e:
+                        logging.warning(f"Could not read file: {e}")
+                        continue
+
+                    flow.response = http.Response.make(200, contents, headers)
+                    # only set flow.response once, for the first matching rule
+                    return
+        if all_candidates:
+            flow.response = http.Response.make(404)
+            logging.info(
+                f"None of the local file candidates exist: {', '.join(str(x) for x in all_candidates)}"
+            )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/mapremote.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/mapremote.py
new file mode 100644
index 0000000000000000000000000000000000000000..31a759ada47593112ba029c2a75828c76c785485
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/mapremote.py
@@ -0,0 +1,68 @@
+import re
+from collections.abc import Sequence
+from typing import NamedTuple
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy.utils.spec import parse_spec
+
+
+class MapRemoteSpec(NamedTuple):
+    matches: flowfilter.TFilter
+    subject: str
+    replacement: str
+
+
+def parse_map_remote_spec(option: str) -> MapRemoteSpec:
+    spec = MapRemoteSpec(*parse_spec(option))
+
+    try:
+        re.compile(spec.subject)
+    except re.error as e:
+        raise ValueError(f"Invalid regular expression {spec.subject!r} ({e})")
+
+    return spec
+
+
+class MapRemote:
+    def __init__(self) -> None:
+        self.replacements: list[MapRemoteSpec] = []
+
+    def load(self, loader):
+        loader.add_option(
+            "map_remote",
+            Sequence[str],
+            [],
+            """
+            Map remote resources to another remote URL using a pattern of the form
+            "[/flow-filter]/url-regex/replacement", where the separator can
+            be any character.
+            """,
+        )
+
+    def configure(self, updated):
+        if "map_remote" in updated:
+            self.replacements = []
+            for option in ctx.options.map_remote:
+                try:
+                    spec = parse_map_remote_spec(option)
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Cannot parse map_remote option {option}: {e}"
+                    ) from e
+
+                self.replacements.append(spec)
+
+    def request(self, flow: http.HTTPFlow) -> None:
+        if flow.response or flow.error or not flow.live:
+            return
+        for spec in self.replacements:
+            if spec.matches(flow):
+                url = flow.request.pretty_url
+                new_url = re.sub(spec.subject, spec.replacement, url)
+                # this is a bit messy: setting .url also updates the host header,
+                # so we really only do that if the replacement affected the URL.
+                if url != new_url:
+                    flow.request.url = new_url  # type: ignore
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/modifybody.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/modifybody.py
new file mode 100644
index 0000000000000000000000000000000000000000..7cef8e5872d8661d864b3059ab26b959b8b0ed2d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/modifybody.py
@@ -0,0 +1,86 @@
+import logging
+import re
+from collections.abc import Sequence
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy.addons.modifyheaders import ModifySpec
+from mitmproxy.addons.modifyheaders import parse_modify_spec
+from mitmproxy.log import ALERT
+
+logger = logging.getLogger(__name__)
+
+
+class ModifyBody:
+    def __init__(self) -> None:
+        self.replacements: list[ModifySpec] = []
+
+    def load(self, loader):
+        loader.add_option(
+            "modify_body",
+            Sequence[str],
+            [],
+            """
+            Replacement pattern of the form "[/flow-filter]/regex/[@]replacement", where
+            the separator can be any character. The @ allows to provide a file path that
+            is used to read the replacement string.
+            """,
+        )
+
+    def configure(self, updated):
+        if "modify_body" in updated:
+            self.replacements = []
+            for option in ctx.options.modify_body:
+                try:
+                    spec = parse_modify_spec(option, True)
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Cannot parse modify_body option {option}: {e}"
+                    ) from e
+
+                self.replacements.append(spec)
+
+        stream_and_modify_conflict = (
+            ctx.options.modify_body
+            and ctx.options.stream_large_bodies
+            and ("modify_body" in updated or "stream_large_bodies" in updated)
+        )
+        if stream_and_modify_conflict:
+            logger.log(
+                ALERT,
+                "Both modify_body and stream_large_bodies are active. "
+                "Streamed bodies will not be modified.",
+            )
+
+    def request(self, flow):
+        if flow.response or flow.error or not flow.live:
+            return
+        self.run(flow)
+
+    def response(self, flow):
+        if flow.error or not flow.live:
+            return
+        self.run(flow)
+
+    def run(self, flow):
+        for spec in self.replacements:
+            if spec.matches(flow):
+                try:
+                    replacement = spec.read_replacement()
+                except OSError as e:
+                    logging.warning(f"Could not read replacement file: {e}")
+                    continue
+                if flow.response:
+                    flow.response.content = re.sub(
+                        spec.subject,
+                        lambda _: replacement,
+                        flow.response.content,
+                        flags=re.DOTALL,
+                    )
+                else:
+                    flow.request.content = re.sub(
+                        spec.subject,
+                        lambda _: replacement,
+                        flow.request.content,
+                        flags=re.DOTALL,
+                    )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/modifyheaders.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/modifyheaders.py
new file mode 100644
index 0000000000000000000000000000000000000000..503ba2282b2989e44dcbc03f17406255d450b3ab
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/modifyheaders.py
@@ -0,0 +1,117 @@
+import logging
+import re
+from collections.abc import Sequence
+from pathlib import Path
+from typing import NamedTuple
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy.http import Headers
+from mitmproxy.utils import strutils
+from mitmproxy.utils.spec import parse_spec
+
+
+class ModifySpec(NamedTuple):
+    matches: flowfilter.TFilter
+    subject: bytes
+    replacement_str: str
+
+    def read_replacement(self) -> bytes:
+        """
+        Process the replacement str. This usually just involves converting it to bytes.
+        However, if it starts with `@`, we interpret the rest as a file path to read from.
+
+        Raises:
+            - IOError if the file cannot be read.
+        """
+        if self.replacement_str.startswith("@"):
+            return Path(self.replacement_str[1:]).expanduser().read_bytes()
+        else:
+            # We could cache this at some point, but unlikely to be a problem.
+            return strutils.escaped_str_to_bytes(self.replacement_str)
+
+
+def parse_modify_spec(option: str, subject_is_regex: bool) -> ModifySpec:
+    flow_filter, subject_str, replacement = parse_spec(option)
+
+    subject = strutils.escaped_str_to_bytes(subject_str)
+    if subject_is_regex:
+        try:
+            re.compile(subject)
+        except re.error as e:
+            raise ValueError(f"Invalid regular expression {subject!r} ({e})")
+
+    spec = ModifySpec(flow_filter, subject, replacement)
+
+    try:
+        spec.read_replacement()
+    except OSError as e:
+        raise ValueError(f"Invalid file path: {replacement[1:]} ({e})")
+
+    return spec
+
+
+class ModifyHeaders:
+    def __init__(self) -> None:
+        self.replacements: list[ModifySpec] = []
+
+    def load(self, loader):
+        loader.add_option(
+            "modify_headers",
+            Sequence[str],
+            [],
+            """
+            Header modify pattern of the form "[/flow-filter]/header-name/[@]header-value", where the
+            separator can be any character. The @ allows to provide a file path that is used to read
+            the header value string. An empty header-value removes existing header-name headers.
+            """,
+        )
+
+    def configure(self, updated):
+        if "modify_headers" in updated:
+            self.replacements = []
+            for option in ctx.options.modify_headers:
+                try:
+                    spec = parse_modify_spec(option, False)
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Cannot parse modify_headers option {option}: {e}"
+                    ) from e
+                self.replacements.append(spec)
+
+    def requestheaders(self, flow):
+        if flow.response or flow.error or not flow.live:
+            return
+        self.run(flow, flow.request.headers)
+
+    def responseheaders(self, flow):
+        if flow.error or not flow.live:
+            return
+        self.run(flow, flow.response.headers)
+
+    def run(self, flow: http.HTTPFlow, hdrs: Headers) -> None:
+        matches = []
+
+        # first check all the filters against the original, unmodified flow
+        for spec in self.replacements:
+            matches.append(spec.matches(flow))
+
+        # unset all specified headers
+        for i, spec in enumerate(self.replacements):
+            if matches[i]:
+                hdrs.pop(spec.subject, None)
+
+        # set all specified headers if the replacement string is not empty
+
+        for i, spec in enumerate(self.replacements):
+            if matches[i]:
+                try:
+                    replacement = spec.read_replacement()
+                except OSError as e:
+                    logging.warning(f"Could not read replacement file: {e}")
+                    continue
+                else:
+                    if replacement:
+                        hdrs.add(spec.subject, replacement)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/next_layer.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/next_layer.py
new file mode 100644
index 0000000000000000000000000000000000000000..9f612d998c51521ca7c6a7023c8340a1f260cc25
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/next_layer.py
@@ -0,0 +1,474 @@
+"""
+This addon determines the next protocol layer in our proxy stack.
+Whenever a protocol layer in the proxy wants to pass a connection to a child layer and isn't sure which protocol comes
+next, it calls the `next_layer` hook, which ends up here.
+For example, if mitmproxy runs as a regular proxy, we first need to determine if
+new clients start with a TLS handshake right away (Secure Web Proxy) or send a plaintext HTTP CONNECT request.
+This addon here peeks at the incoming bytes and then makes a decision based on proxy mode, mitmproxy options, etc.
+
+For a typical HTTPS request, this addon is called a couple of times: First to determine that we start with an HTTP layer
+which processes the `CONNECT` request, a second time to determine that the client then starts negotiating TLS, and a
+third time when we check if the protocol within that TLS stream is actually HTTP or something else.
+
+Sometimes it's useful to hardcode specific logic in next_layer when one wants to do fancy things.
+In that case it's not necessary to modify mitmproxy's source, adding a custom addon with a next_layer event hook
+that sets nextlayer.layer works just as well.
+"""
+
+from __future__ import annotations
+
+import logging
+import re
+import sys
+from collections.abc import Iterable
+from collections.abc import Sequence
+from typing import Any
+from typing import cast
+
+from mitmproxy import ctx
+from mitmproxy.connection import Address
+from mitmproxy.net.tls import starts_like_dtls_record
+from mitmproxy.net.tls import starts_like_tls_record
+from mitmproxy.proxy import layer
+from mitmproxy.proxy import layers
+from mitmproxy.proxy import mode_specs
+from mitmproxy.proxy import tunnel
+from mitmproxy.proxy.context import Context
+from mitmproxy.proxy.layer import Layer
+from mitmproxy.proxy.layers import ClientQuicLayer
+from mitmproxy.proxy.layers import ClientTLSLayer
+from mitmproxy.proxy.layers import DNSLayer
+from mitmproxy.proxy.layers import HttpLayer
+from mitmproxy.proxy.layers import modes
+from mitmproxy.proxy.layers import RawQuicLayer
+from mitmproxy.proxy.layers import ServerQuicLayer
+from mitmproxy.proxy.layers import ServerTLSLayer
+from mitmproxy.proxy.layers import TCPLayer
+from mitmproxy.proxy.layers import UDPLayer
+from mitmproxy.proxy.layers.http import HTTPMode
+from mitmproxy.proxy.layers.quic import quic_parse_client_hello_from_datagrams
+from mitmproxy.proxy.layers.tls import dtls_parse_client_hello
+from mitmproxy.proxy.layers.tls import HTTP_ALPNS
+from mitmproxy.proxy.layers.tls import parse_client_hello
+from mitmproxy.tls import ClientHello
+
+if sys.version_info < (3, 11):
+    from typing_extensions import assert_never
+else:
+    from typing import assert_never
+
+logger = logging.getLogger(__name__)
+
+
+def stack_match(
+    context: Context, layers: Sequence[type[Layer] | tuple[type[Layer], ...]]
+) -> bool:
+    if len(context.layers) != len(layers):
+        return False
+    return all(
+        expected is Any or isinstance(actual, expected)
+        for actual, expected in zip(context.layers, layers)
+    )
+
+
+class NeedsMoreData(Exception):
+    """Signal that the decision on which layer to put next needs to be deferred within the NextLayer addon."""
+
+
+class NextLayer:
+    ignore_hosts: Sequence[re.Pattern] = ()
+    allow_hosts: Sequence[re.Pattern] = ()
+    tcp_hosts: Sequence[re.Pattern] = ()
+    udp_hosts: Sequence[re.Pattern] = ()
+
+    def configure(self, updated):
+        if "tcp_hosts" in updated:
+            self.tcp_hosts = [
+                re.compile(x, re.IGNORECASE) for x in ctx.options.tcp_hosts
+            ]
+        if "udp_hosts" in updated:
+            self.udp_hosts = [
+                re.compile(x, re.IGNORECASE) for x in ctx.options.udp_hosts
+            ]
+        if "allow_hosts" in updated or "ignore_hosts" in updated:
+            self.ignore_hosts = [
+                re.compile(x, re.IGNORECASE) for x in ctx.options.ignore_hosts
+            ]
+            self.allow_hosts = [
+                re.compile(x, re.IGNORECASE) for x in ctx.options.allow_hosts
+            ]
+
+    def next_layer(self, nextlayer: layer.NextLayer):
+        if nextlayer.layer:
+            return  # do not override something another addon has set.
+        try:
+            nextlayer.layer = self._next_layer(
+                nextlayer.context,
+                nextlayer.data_client(),
+                nextlayer.data_server(),
+            )
+        except NeedsMoreData:
+            logger.debug(
+                f"Deferring layer decision, not enough data: {nextlayer.data_client().hex()!r}"
+            )
+
+    def _next_layer(
+        self, context: Context, data_client: bytes, data_server: bytes
+    ) -> Layer | None:
+        assert context.layers
+
+        def s(*layers):
+            return stack_match(context, layers)
+
+        tcp_based = context.client.transport_protocol == "tcp"
+        udp_based = context.client.transport_protocol == "udp"
+
+        # 1)  check for --ignore/--allow
+        if self._ignore_connection(context, data_client, data_server):
+            return (
+                layers.TCPLayer(context, ignore=not ctx.options.show_ignored_hosts)
+                if tcp_based
+                else layers.UDPLayer(context, ignore=not ctx.options.show_ignored_hosts)
+            )
+
+        # 2)  Handle proxy modes with well-defined next protocol
+        # 2a) Reverse proxy: derive from spec
+        if s(modes.ReverseProxy):
+            return self._setup_reverse_proxy(context, data_client)
+        # 2b) Explicit HTTP proxies
+        if s((modes.HttpProxy, modes.HttpUpstreamProxy)):
+            return self._setup_explicit_http_proxy(context, data_client)
+
+        # 3)  Handle security protocols
+        # 3a) TLS/DTLS
+        is_tls_or_dtls = (
+            tcp_based
+            and starts_like_tls_record(data_client)
+            or udp_based
+            and starts_like_dtls_record(data_client)
+        )
+        if is_tls_or_dtls:
+            server_tls = ServerTLSLayer(context)
+            server_tls.child_layer = ClientTLSLayer(context)
+            return server_tls
+        # 3b) QUIC
+        if udp_based and _starts_like_quic(data_client, context.server.address):
+            server_quic = ServerQuicLayer(context)
+            server_quic.child_layer = ClientQuicLayer(context)
+            return server_quic
+
+        # 4)  Check for --tcp/--udp
+        if tcp_based and self._is_destination_in_hosts(context, self.tcp_hosts):
+            return layers.TCPLayer(context)
+        if udp_based and self._is_destination_in_hosts(context, self.udp_hosts):
+            return layers.UDPLayer(context)
+
+        # 5)  Handle application protocol
+        # 5a) Do we have a known ALPN negotiation?
+        if context.client.alpn:
+            if context.client.alpn in HTTP_ALPNS:
+                return layers.HttpLayer(context, HTTPMode.transparent)
+            elif context.client.tls_version == "QUICv1":
+                # TODO: Once we support more QUIC-based protocols, relax force_raw here.
+                return layers.RawQuicLayer(context, force_raw=True)
+        # 5b) Is it DNS?
+        if context.server.address and context.server.address[1] in (53, 5353):
+            return layers.DNSLayer(context)
+        # 5c) We have no other specialized layers for UDP, so we fall back to raw forwarding.
+        if udp_based:
+            return layers.UDPLayer(context)
+        # 5d) Check for raw tcp mode.
+        probably_no_http = (
+            # the first three bytes should be the HTTP verb, so A-Za-z is expected.
+            len(data_client) < 3
+            # HTTP would require whitespace...
+            or b" " not in data_client
+            # ...and that whitespace needs to be in the first line.
+            or (data_client.find(b" ") > data_client.find(b"\n"))
+            or not data_client[:3].isalpha()
+            # a server greeting would be uncharacteristic.
+            or data_server
+            or data_client.startswith(b"SSH")
+        )
+        if ctx.options.rawtcp and probably_no_http:
+            return layers.TCPLayer(context)
+        # 5c) Assume HTTP by default.
+        return layers.HttpLayer(context, HTTPMode.transparent)
+
+    def _ignore_connection(
+        self,
+        context: Context,
+        data_client: bytes,
+        data_server: bytes,
+    ) -> bool | None:
+        """
+        Returns:
+            True, if the connection should be ignored.
+            False, if it should not be ignored.
+
+        Raises:
+            NeedsMoreData, if we need to wait for more input data.
+        """
+        if not ctx.options.ignore_hosts and not ctx.options.allow_hosts:
+            return False
+        # Special handling for wireguard mode: if the hostname is "10.0.0.53", do not ignore the connection
+        if isinstance(
+            context.client.proxy_mode, mode_specs.WireGuardMode
+        ) and context.server.address == ("10.0.0.53", 53):
+            return False
+        hostnames: list[str] = []
+        if context.server.peername:
+            host, port, *_ = context.server.peername
+            hostnames.append(f"{host}:{port}")
+        if context.server.address:
+            host, port, *_ = context.server.address
+            hostnames.append(f"{host}:{port}")
+
+            # We also want to check for TLS SNI and HTTP host headers, but in order to ignore connections based on that
+            # they must have a destination address. If they don't, we don't know how to establish an upstream connection
+            # if we ignore.
+            if host_header := self._get_host_header(context, data_client, data_server):
+                if not re.search(r":\d+$", host_header):
+                    host_header = f"{host_header}:{port}"
+                hostnames.append(host_header)
+            if (
+                client_hello := self._get_client_hello(context, data_client)
+            ) and client_hello.sni:
+                hostnames.append(f"{client_hello.sni}:{port}")
+            if context.client.sni:
+                # Hostname may be allowed, TLS is already established, and we have another next layer decision.
+                hostnames.append(f"{context.client.sni}:{port}")
+
+        if not hostnames:
+            return False
+
+        if ctx.options.allow_hosts:
+            not_allowed = not any(
+                re.search(rex, host, re.IGNORECASE)
+                for host in hostnames
+                for rex in ctx.options.allow_hosts
+            )
+            if not_allowed:
+                return True
+
+        if ctx.options.ignore_hosts:
+            ignored = any(
+                re.search(rex, host, re.IGNORECASE)
+                for host in hostnames
+                for rex in ctx.options.ignore_hosts
+            )
+            if ignored:
+                return True
+
+        return False
+
+    @staticmethod
+    def _get_host_header(
+        context: Context,
+        data_client: bytes,
+        data_server: bytes,
+    ) -> str | None:
+        """
+        Try to read a host header from data_client.
+
+        Returns:
+            The host header value, or None, if no host header was found.
+
+        Raises:
+            NeedsMoreData, if the HTTP request is incomplete.
+        """
+        if context.client.transport_protocol != "tcp" or data_server:
+            return None
+
+        host_header_expected = re.match(
+            rb"[A-Z]{3,}.+HTTP/", data_client, re.IGNORECASE
+        )
+        if host_header_expected:
+            if m := re.search(
+                rb"\r\n(?:Host:\s+(.+?)\s*)?\r\n", data_client, re.IGNORECASE
+            ):
+                if host := m.group(1):
+                    return host.decode("utf-8", "surrogateescape")
+                else:
+                    return None  # \r\n\r\n - header end came first.
+            else:
+                raise NeedsMoreData
+        else:
+            return None
+
+    @staticmethod
+    def _get_client_hello(context: Context, data_client: bytes) -> ClientHello | None:
+        """
+        Try to read a TLS/DTLS/QUIC ClientHello from data_client.
+
+        Returns:
+            A complete ClientHello, or None, if no ClientHello was found.
+
+        Raises:
+            NeedsMoreData, if the ClientHello is incomplete.
+        """
+        match context.client.transport_protocol:
+            case "tcp":
+                if starts_like_tls_record(data_client):
+                    try:
+                        ch = parse_client_hello(data_client)
+                    except ValueError:
+                        pass
+                    else:
+                        if ch is None:
+                            raise NeedsMoreData
+                        return ch
+                return None
+            case "udp":
+                try:
+                    return quic_parse_client_hello_from_datagrams([data_client])
+                except ValueError:
+                    pass
+
+                try:
+                    ch = dtls_parse_client_hello(data_client)
+                except ValueError:
+                    pass
+                else:
+                    if ch is None:
+                        raise NeedsMoreData
+                    return ch
+                return None
+            case _:  # pragma: no cover
+                assert_never(context.client.transport_protocol)
+
+    @staticmethod
+    def _setup_reverse_proxy(context: Context, data_client: bytes) -> Layer:
+        spec = cast(mode_specs.ReverseMode, context.client.proxy_mode)
+        stack = tunnel.LayerStack()
+
+        match spec.scheme:
+            case "http":
+                if starts_like_tls_record(data_client):
+                    stack /= ClientTLSLayer(context)
+                stack /= HttpLayer(context, HTTPMode.transparent)
+            case "https":
+                if context.client.transport_protocol == "udp":
+                    stack /= ServerQuicLayer(context)
+                    stack /= ClientQuicLayer(context)
+                    stack /= HttpLayer(context, HTTPMode.transparent)
+                else:
+                    stack /= ServerTLSLayer(context)
+                    if starts_like_tls_record(data_client):
+                        stack /= ClientTLSLayer(context)
+                    stack /= HttpLayer(context, HTTPMode.transparent)
+
+            case "tcp":
+                if starts_like_tls_record(data_client):
+                    stack /= ClientTLSLayer(context)
+                stack /= TCPLayer(context)
+            case "tls":
+                stack /= ServerTLSLayer(context)
+                if starts_like_tls_record(data_client):
+                    stack /= ClientTLSLayer(context)
+                stack /= TCPLayer(context)
+
+            case "udp":
+                if starts_like_dtls_record(data_client):
+                    stack /= ClientTLSLayer(context)
+                stack /= UDPLayer(context)
+            case "dtls":
+                stack /= ServerTLSLayer(context)
+                if starts_like_dtls_record(data_client):
+                    stack /= ClientTLSLayer(context)
+                stack /= UDPLayer(context)
+
+            case "dns":
+                # TODO: DNS-over-TLS / DNS-over-DTLS
+                # is_tls_or_dtls = (
+                #     context.client.transport_protocol == "tcp" and starts_like_tls_record(data_client)
+                #     or
+                #     context.client.transport_protocol == "udp" and starts_like_dtls_record(data_client)
+                # )
+                # if is_tls_or_dtls:
+                #     stack /= ClientTLSLayer(context)
+                stack /= DNSLayer(context)
+
+            case "http3":
+                stack /= ServerQuicLayer(context)
+                stack /= ClientQuicLayer(context)
+                stack /= HttpLayer(context, HTTPMode.transparent)
+            case "quic":
+                stack /= ServerQuicLayer(context)
+                stack /= ClientQuicLayer(context)
+                stack /= RawQuicLayer(context, force_raw=True)
+
+            case _:  # pragma: no cover
+                assert_never(spec.scheme)
+
+        return stack[0]
+
+    @staticmethod
+    def _setup_explicit_http_proxy(context: Context, data_client: bytes) -> Layer:
+        stack = tunnel.LayerStack()
+
+        if context.client.transport_protocol == "udp":
+            stack /= layers.ClientQuicLayer(context)
+        elif starts_like_tls_record(data_client):
+            stack /= layers.ClientTLSLayer(context)
+
+        if isinstance(context.layers[0], modes.HttpUpstreamProxy):
+            stack /= layers.HttpLayer(context, HTTPMode.upstream)
+        else:
+            stack /= layers.HttpLayer(context, HTTPMode.regular)
+
+        return stack[0]
+
+    @staticmethod
+    def _is_destination_in_hosts(context: Context, hosts: Iterable[re.Pattern]) -> bool:
+        return any(
+            (context.server.address and rex.search(context.server.address[0]))
+            or (context.client.sni and rex.search(context.client.sni))
+            for rex in hosts
+        )
+
+
+# https://www.iana.org/assignments/quic/quic.xhtml
+KNOWN_QUIC_VERSIONS = {
+    0x00000001,  # QUIC v1
+    0x51303433,  # Google QUIC Q043
+    0x51303436,  # Google QUIC Q046
+    0x51303530,  # Google QUIC Q050
+    0x6B3343CF,  # QUIC v2
+    0x709A50C4,  # QUIC v2 draft codepoint
+}
+
+TYPICAL_QUIC_PORTS = {80, 443, 8443}
+
+
+def _starts_like_quic(data_client: bytes, server_address: Address | None) -> bool:
+    """
+    Make an educated guess on whether this could be QUIC.
+    This turns out to be quite hard in practice as 1-RTT packets are hardly distinguishable from noise.
+
+    Returns:
+        True, if the passed bytes could be the start of a QUIC packet.
+        False, otherwise.
+    """
+    # Minimum size: 1 flag byte + 1+ packet number bytes + 16+ bytes encrypted payload
+    if len(data_client) < 18:
+        return False
+    if starts_like_dtls_record(data_client):
+        return False
+    # TODO: Add more checks here to detect true negatives.
+
+    # Long Header Packets
+    if data_client[0] & 0x80:
+        version = int.from_bytes(data_client[1:5], "big")
+        if version in KNOWN_QUIC_VERSIONS:
+            return True
+        # https://www.rfc-editor.org/rfc/rfc9000.html#name-versions
+        # Versions that follow the pattern 0x?a?a?a?a are reserved for use in forcing version negotiation
+        if version & 0x0F0F0F0F == 0x0A0A0A0A:
+            return True
+    else:
+        # ¯\_(ツ)_/¯
+        # We can't even rely on the QUIC bit, see https://datatracker.ietf.org/doc/rfc9287/.
+        pass
+
+    return bool(server_address and server_address[1] in TYPICAL_QUIC_PORTS)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/onboarding.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/onboarding.py
new file mode 100644
index 0000000000000000000000000000000000000000..02cf4bd204cd9ee186345b94e84c2517224c6c9e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/onboarding.py
@@ -0,0 +1,34 @@
+from mitmproxy import ctx
+from mitmproxy.addons import asgiapp
+from mitmproxy.addons.onboardingapp import app
+
+APP_HOST = "mitm.it"
+
+
+class Onboarding(asgiapp.WSGIApp):
+    name = "onboarding"
+
+    def __init__(self):
+        super().__init__(app, APP_HOST, None)
+
+    def load(self, loader):
+        loader.add_option(
+            "onboarding", bool, True, "Toggle the mitmproxy onboarding app."
+        )
+        loader.add_option(
+            "onboarding_host",
+            str,
+            APP_HOST,
+            """
+            Onboarding app domain. For transparent mode, use an IP when a DNS
+            entry for the app domain is not present.
+            """,
+        )
+
+    def configure(self, updated):
+        self.host = ctx.options.onboarding_host
+        app.config["CONFDIR"] = ctx.options.confdir
+
+    async def request(self, f):
+        if ctx.options.onboarding:
+            await super().request(f)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/proxyauth.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/proxyauth.py
new file mode 100644
index 0000000000000000000000000000000000000000..0fd985d1532285ad9a27b4b86806a70ef6be5722
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/proxyauth.py
@@ -0,0 +1,298 @@
+from __future__ import annotations
+
+import binascii
+import pathlib
+import weakref
+from abc import ABC
+from abc import abstractmethod
+from collections.abc import MutableMapping
+from typing import Optional
+
+import ldap3
+
+from mitmproxy import connection
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import http
+from mitmproxy.net.http import status_codes
+from mitmproxy.proxy import mode_specs
+from mitmproxy.proxy.layers import modes
+from mitmproxy.utils import htpasswd
+
+REALM = "mitmproxy"
+
+
+class ProxyAuth:
+    validator: Validator | None = None
+
+    def __init__(self) -> None:
+        self.authenticated: MutableMapping[connection.Client, tuple[str, str]] = (
+            weakref.WeakKeyDictionary()
+        )
+        """Contains all connections that are permanently authenticated after an HTTP CONNECT"""
+
+    def load(self, loader):
+        loader.add_option(
+            "proxyauth",
+            Optional[str],
+            None,
+            """
+            Require proxy authentication. Format:
+            "username:pass",
+            "any" to accept any user/pass combination,
+            "@path" to use an Apache htpasswd file,
+            or "ldap[s]:url_server_ldap[:port]:dn_auth:password:dn_subtree[?search_filter_key=...]" for LDAP authentication.
+            """,
+        )
+
+    def configure(self, updated):
+        if "proxyauth" in updated:
+            auth = ctx.options.proxyauth
+            if auth:
+                if auth == "any":
+                    self.validator = AcceptAll()
+                elif auth.startswith("@"):
+                    self.validator = Htpasswd(auth)
+                elif ctx.options.proxyauth.startswith("ldap"):
+                    self.validator = Ldap(auth)
+                elif ":" in ctx.options.proxyauth:
+                    self.validator = SingleUser(auth)
+                else:
+                    raise exceptions.OptionsError("Invalid proxyauth specification.")
+            else:
+                self.validator = None
+
+    def socks5_auth(self, data: modes.Socks5AuthData) -> None:
+        if self.validator and self.validator(data.username, data.password):
+            data.valid = True
+            self.authenticated[data.client_conn] = data.username, data.password
+
+    def http_connect(self, f: http.HTTPFlow) -> None:
+        if self.validator and self.authenticate_http(f):
+            # Make a note that all further requests over this connection are ok.
+            self.authenticated[f.client_conn] = f.metadata["proxyauth"]
+
+    def requestheaders(self, f: http.HTTPFlow) -> None:
+        if self.validator:
+            # Is this connection authenticated by a previous HTTP CONNECT?
+            if f.client_conn in self.authenticated:
+                f.metadata["proxyauth"] = self.authenticated[f.client_conn]
+            elif f.is_replay:
+                pass
+            else:
+                self.authenticate_http(f)
+
+    def authenticate_http(self, f: http.HTTPFlow) -> bool:
+        """
+        Authenticate an HTTP request, returns if authentication was successful.
+
+        If valid credentials are found, the matching authentication header is removed.
+        In no or invalid credentials are found, flow.response is set to an error page.
+        """
+        assert self.validator
+        username = None
+        password = None
+        is_valid = False
+
+        is_proxy = is_http_proxy(f)
+        auth_header = http_auth_header(is_proxy)
+        try:
+            auth_value = f.request.headers.get(auth_header, "")
+            scheme, username, password = parse_http_basic_auth(auth_value)
+            is_valid = self.validator(username, password)
+        except Exception:
+            pass
+
+        if is_valid:
+            f.metadata["proxyauth"] = (username, password)
+            del f.request.headers[auth_header]
+            return True
+        else:
+            f.response = make_auth_required_response(is_proxy)
+            return False
+
+
+def make_auth_required_response(is_proxy: bool) -> http.Response:
+    if is_proxy:
+        status_code = status_codes.PROXY_AUTH_REQUIRED
+        headers = {"Proxy-Authenticate": f'Basic realm="{REALM}"'}
+    else:
+        status_code = status_codes.UNAUTHORIZED
+        headers = {"WWW-Authenticate": f'Basic realm="{REALM}"'}
+
+    reason = http.status_codes.RESPONSES[status_code]
+    return http.Response.make(
+        status_code,
+        (
+            f"<html>"
+            f"<head><title>{status_code} {reason}</title></head>"
+            f"<body><h1>{status_code} {reason}</h1></body>"
+            f"</html>"
+        ),
+        headers,
+    )
+
+
+def http_auth_header(is_proxy: bool) -> str:
+    if is_proxy:
+        return "Proxy-Authorization"
+    else:
+        return "Authorization"
+
+
+def is_http_proxy(f: http.HTTPFlow) -> bool:
+    """
+    Returns:
+        - True, if authentication is done as if mitmproxy is a proxy
+        - False, if authentication is done as if mitmproxy is an HTTP server
+    """
+    return isinstance(
+        f.client_conn.proxy_mode, (mode_specs.RegularMode, mode_specs.UpstreamMode)
+    )
+
+
+def mkauth(username: str, password: str, scheme: str = "basic") -> str:
+    """
+    Craft a basic auth string
+    """
+    v = binascii.b2a_base64((username + ":" + password).encode("utf8")).decode("ascii")
+    return scheme + " " + v
+
+
+def parse_http_basic_auth(s: str) -> tuple[str, str, str]:
+    """
+    Parse a basic auth header.
+    Raises a ValueError if the input is invalid.
+    """
+    scheme, authinfo = s.split()
+    if scheme.lower() != "basic":
+        raise ValueError("Unknown scheme")
+    try:
+        user, password = (
+            binascii.a2b_base64(authinfo.encode()).decode("utf8", "replace").split(":")
+        )
+    except binascii.Error as e:
+        raise ValueError(str(e))
+    return scheme, user, password
+
+
+class Validator(ABC):
+    """Base class for all username/password validators."""
+
+    @abstractmethod
+    def __call__(self, username: str, password: str) -> bool:
+        raise NotImplementedError
+
+
+class AcceptAll(Validator):
+    def __call__(self, username: str, password: str) -> bool:
+        return True
+
+
+class SingleUser(Validator):
+    def __init__(self, proxyauth: str):
+        try:
+            self.username, self.password = proxyauth.split(":")
+        except ValueError:
+            raise exceptions.OptionsError("Invalid single-user auth specification.")
+
+    def __call__(self, username: str, password: str) -> bool:
+        return self.username == username and self.password == password
+
+
+class Htpasswd(Validator):
+    def __init__(self, proxyauth: str):
+        path = pathlib.Path(proxyauth[1:]).expanduser()
+        try:
+            self.htpasswd = htpasswd.HtpasswdFile.from_file(path)
+        except (ValueError, OSError) as e:
+            raise exceptions.OptionsError(
+                f"Could not open htpasswd file: {path}"
+            ) from e
+
+    def __call__(self, username: str, password: str) -> bool:
+        return self.htpasswd.check_password(username, password)
+
+
+class Ldap(Validator):
+    conn: ldap3.Connection
+    server: ldap3.Server
+    dn_subtree: str
+    filter_key: str
+
+    def __init__(self, proxyauth: str):
+        (
+            use_ssl,
+            url,
+            port,
+            ldap_user,
+            ldap_pass,
+            self.dn_subtree,
+            self.filter_key,
+        ) = self.parse_spec(proxyauth)
+        server = ldap3.Server(url, port=port, use_ssl=use_ssl)
+        conn = ldap3.Connection(server, ldap_user, ldap_pass, auto_bind=True)
+        self.conn = conn
+        self.server = server
+
+    @staticmethod
+    def parse_spec(spec: str) -> tuple[bool, str, int | None, str, str, str, str]:
+        try:
+            if spec.count(":") > 4:
+                (
+                    security,
+                    url,
+                    port_str,
+                    ldap_user,
+                    ldap_pass,
+                    dn_subtree,
+                ) = spec.split(":")
+                port = int(port_str)
+            else:
+                security, url, ldap_user, ldap_pass, dn_subtree = spec.split(":")
+                port = None
+
+            if "?" in dn_subtree:
+                dn_subtree, search_str = dn_subtree.split("?")
+                key, value = search_str.split("=")
+                if key == "search_filter_key":
+                    search_filter_key = value
+                else:
+                    raise ValueError
+            else:
+                search_filter_key = "cn"
+
+            if security == "ldaps":
+                use_ssl = True
+            elif security == "ldap":
+                use_ssl = False
+            else:
+                raise ValueError
+
+            return (
+                use_ssl,
+                url,
+                port,
+                ldap_user,
+                ldap_pass,
+                dn_subtree,
+                search_filter_key,
+            )
+        except ValueError:
+            raise exceptions.OptionsError(f"Invalid LDAP specification: {spec}")
+
+    def make_search_filter(self, username: str) -> str:
+        username = ldap3.utils.conv.escape_filter_chars(username)
+        return f"({self.filter_key}={username})"
+
+    def __call__(self, username: str, password: str) -> bool:
+        if not username or not password:
+            return False
+        self.conn.search(self.dn_subtree, self.make_search_filter(username))
+        if self.conn.response:
+            c = ldap3.Connection(
+                self.server, self.conn.response[0]["dn"], password, auto_bind=True
+            )
+            if c:
+                return True
+        return False
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/proxyserver.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/proxyserver.py
new file mode 100644
index 0000000000000000000000000000000000000000..875bf8d08bdb4e63a5ac33abb75edde26c6de24a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/proxyserver.py
@@ -0,0 +1,396 @@
+"""
+This addon is responsible for starting/stopping the proxy server sockets/instances specified by the mode option.
+"""
+
+from __future__ import annotations
+
+import asyncio
+import collections
+import ipaddress
+import logging
+from collections.abc import Iterable
+from collections.abc import Iterator
+from contextlib import contextmanager
+from typing import Optional
+
+from wsproto.frame_protocol import Opcode
+
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import http
+from mitmproxy import platform
+from mitmproxy import tcp
+from mitmproxy import udp
+from mitmproxy import websocket
+from mitmproxy.connection import Address
+from mitmproxy.flow import Flow
+from mitmproxy.proxy import events
+from mitmproxy.proxy import mode_specs
+from mitmproxy.proxy import server_hooks
+from mitmproxy.proxy.layers.tcp import TcpMessageInjected
+from mitmproxy.proxy.layers.udp import UdpMessageInjected
+from mitmproxy.proxy.layers.websocket import WebSocketMessageInjected
+from mitmproxy.proxy.mode_servers import ProxyConnectionHandler
+from mitmproxy.proxy.mode_servers import ServerInstance
+from mitmproxy.proxy.mode_servers import ServerManager
+from mitmproxy.utils import asyncio_utils
+from mitmproxy.utils import human
+from mitmproxy.utils import signals
+
+logger = logging.getLogger(__name__)
+
+
+class Servers:
+    def __init__(self, manager: ServerManager):
+        self.changed = signals.AsyncSignal(lambda: None)
+        self._instances: dict[mode_specs.ProxyMode, ServerInstance] = dict()
+        self._lock = asyncio.Lock()
+        self._manager = manager
+
+    @property
+    def is_updating(self) -> bool:
+        return self._lock.locked()
+
+    async def update(self, modes: Iterable[mode_specs.ProxyMode]) -> bool:
+        all_ok = True
+
+        async with self._lock:
+            new_instances: dict[mode_specs.ProxyMode, ServerInstance] = {}
+
+            start_tasks = []
+            if ctx.options.server:
+                # Create missing modes and keep existing ones.
+                for spec in modes:
+                    if spec in self._instances:
+                        instance = self._instances[spec]
+                    else:
+                        instance = ServerInstance.make(spec, self._manager)
+                        start_tasks.append(instance.start())
+                    new_instances[spec] = instance
+
+            # Shutdown modes that have been removed from the list.
+            stop_tasks = [
+                s.stop()
+                for spec, s in self._instances.items()
+                if spec not in new_instances
+            ]
+
+            if not start_tasks and not stop_tasks:
+                return (
+                    True  # nothing to do, so we don't need to trigger `self.changed`.
+                )
+
+            self._instances = new_instances
+            # Notify listeners about the new not-yet-started servers.
+            await self.changed.send()
+
+            # We first need to free ports before starting new servers.
+            for ret in await asyncio.gather(*stop_tasks, return_exceptions=True):
+                if ret:
+                    all_ok = False
+                    logger.error(str(ret))
+            for ret in await asyncio.gather(*start_tasks, return_exceptions=True):
+                if ret:
+                    all_ok = False
+                    logger.error(str(ret))
+
+        await self.changed.send()
+        return all_ok
+
+    def __len__(self) -> int:
+        return len(self._instances)
+
+    def __iter__(self) -> Iterator[ServerInstance]:
+        return iter(self._instances.values())
+
+    def __getitem__(self, mode: str | mode_specs.ProxyMode) -> ServerInstance:
+        if isinstance(mode, str):
+            mode = mode_specs.ProxyMode.parse(mode)
+        return self._instances[mode]
+
+
+class Proxyserver(ServerManager):
+    """
+    This addon runs the actual proxy server.
+    """
+
+    connections: dict[tuple | str, ProxyConnectionHandler]
+    servers: Servers
+
+    is_running: bool
+    _connect_addr: Address | None = None
+
+    def __init__(self):
+        self.connections = {}
+        self.servers = Servers(self)
+        self.is_running = False
+
+    def __repr__(self):
+        return f"Proxyserver({len(self.connections)} active conns)"
+
+    @command.command("proxyserver.active_connections")
+    def active_connections(self) -> int:
+        return len(self.connections)
+
+    @contextmanager
+    def register_connection(
+        self, connection_id: tuple | str, handler: ProxyConnectionHandler
+    ):
+        self.connections[connection_id] = handler
+        try:
+            yield
+        finally:
+            del self.connections[connection_id]
+
+    def load(self, loader):
+        loader.add_option(
+            "store_streamed_bodies",
+            bool,
+            False,
+            "Store HTTP request and response bodies when streamed (see `stream_large_bodies`). "
+            "This increases memory consumption, but makes it possible to inspect streamed bodies.",
+        )
+        loader.add_option(
+            "connection_strategy",
+            str,
+            "eager",
+            "Determine when server connections should be established. When set to lazy, mitmproxy "
+            "tries to defer establishing an upstream connection as long as possible. This makes it possible to "
+            "use server replay while being offline. When set to eager, mitmproxy can detect protocols with "
+            "server-side greetings, as well as accurately mirror TLS ALPN negotiation.",
+            choices=("eager", "lazy"),
+        )
+        loader.add_option(
+            "stream_large_bodies",
+            Optional[str],
+            None,
+            """
+            Stream data to the client if request or response body exceeds the given
+            threshold. If streamed, the body will not be stored in any way,
+            and such responses cannot be modified. Understands k/m/g
+            suffixes, i.e. 3m for 3 megabytes. To store streamed bodies, see `store_streamed_bodies`.
+            """,
+        )
+        loader.add_option(
+            "body_size_limit",
+            Optional[str],
+            None,
+            """
+            Byte size limit of HTTP request and response bodies. Understands
+            k/m/g suffixes, i.e. 3m for 3 megabytes.
+            """,
+        )
+        loader.add_option(
+            "keep_host_header",
+            bool,
+            False,
+            """
+            Reverse Proxy: Keep the original host header instead of rewriting it
+            to the reverse proxy target.
+            """,
+        )
+        loader.add_option(
+            "proxy_debug",
+            bool,
+            False,
+            "Enable debug logs in the proxy core.",
+        )
+        loader.add_option(
+            "normalize_outbound_headers",
+            bool,
+            True,
+            """
+            Normalize outgoing HTTP/2 header names, but emit a warning when doing so.
+            HTTP/2 does not allow uppercase header names. This option makes sure that HTTP/2 headers set
+            in custom scripts are lowercased before they are sent.
+            """,
+        )
+        loader.add_option(
+            "validate_inbound_headers",
+            bool,
+            True,
+            """
+            Make sure that incoming HTTP requests are not malformed.
+            Disabling this option makes mitmproxy vulnerable to HTTP smuggling attacks.
+            """,
+        )
+        loader.add_option(
+            "connect_addr",
+            Optional[str],
+            None,
+            """Set the local IP address that mitmproxy should use when connecting to upstream servers.""",
+        )
+
+    def running(self):
+        self.is_running = True
+
+    def configure(self, updated) -> None:
+        if "stream_large_bodies" in updated:
+            try:
+                human.parse_size(ctx.options.stream_large_bodies)
+            except ValueError:
+                raise exceptions.OptionsError(
+                    f"Invalid stream_large_bodies specification: "
+                    f"{ctx.options.stream_large_bodies}"
+                )
+        if "body_size_limit" in updated:
+            try:
+                human.parse_size(ctx.options.body_size_limit)
+            except ValueError:
+                raise exceptions.OptionsError(
+                    f"Invalid body_size_limit specification: "
+                    f"{ctx.options.body_size_limit}"
+                )
+        if "connect_addr" in updated:
+            try:
+                if ctx.options.connect_addr:
+                    self._connect_addr = (
+                        str(ipaddress.ip_address(ctx.options.connect_addr)),
+                        0,
+                    )
+                else:
+                    self._connect_addr = None
+            except ValueError:
+                raise exceptions.OptionsError(
+                    f"Invalid value for connect_addr: {ctx.options.connect_addr!r}. Specify a valid IP address."
+                )
+        if "mode" in updated or "server" in updated:
+            # Make sure that all modes are syntactically valid...
+            modes: list[mode_specs.ProxyMode] = []
+            for mode in ctx.options.mode:
+                try:
+                    modes.append(mode_specs.ProxyMode.parse(mode))
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Invalid proxy mode specification: {mode} ({e})"
+                    )
+
+            # ...and don't listen on the same address.
+            listen_addrs = []
+            for m in modes:
+                if m.transport_protocol == "both":
+                    protocols = ["tcp", "udp"]
+                else:
+                    protocols = [m.transport_protocol]
+                host = m.listen_host(ctx.options.listen_host)
+                port = m.listen_port(ctx.options.listen_port)
+                if port is None:
+                    continue
+                for proto in protocols:
+                    listen_addrs.append((host, port, proto))
+            if len(set(listen_addrs)) != len(listen_addrs):
+                (host, port, _) = collections.Counter(listen_addrs).most_common(1)[0][0]
+                dup_addr = human.format_address((host or "0.0.0.0", port))
+                raise exceptions.OptionsError(
+                    f"Cannot spawn multiple servers on the same address: {dup_addr}"
+                )
+
+            if ctx.options.mode and not ctx.master.addons.get("nextlayer"):
+                logger.warning("Warning: Running proxyserver without nextlayer addon!")
+            if any(isinstance(m, mode_specs.TransparentMode) for m in modes):
+                if platform.original_addr:
+                    platform.init_transparent_mode()
+                else:
+                    raise exceptions.OptionsError(
+                        "Transparent mode not supported on this platform."
+                    )
+
+            if self.is_running:
+                asyncio_utils.create_task(
+                    self.servers.update(modes),
+                    name="update servers",
+                    keep_ref=True,
+                )
+
+    async def setup_servers(self) -> bool:
+        """Setup proxy servers. This may take an indefinite amount of time to complete (e.g. on permission prompts)."""
+        return await self.servers.update(
+            [mode_specs.ProxyMode.parse(m) for m in ctx.options.mode]
+        )
+
+    def listen_addrs(self) -> list[Address]:
+        return [addr for server in self.servers for addr in server.listen_addrs]
+
+    def inject_event(self, event: events.MessageInjected):
+        connection_id: str | tuple
+        if event.flow.client_conn.transport_protocol != "udp":
+            connection_id = event.flow.client_conn.id
+        else:  # pragma: no cover
+            # temporary workaround: for UDP we don't have persistent client IDs yet.
+            connection_id = (
+                event.flow.client_conn.peername,
+                event.flow.client_conn.sockname,
+            )
+        if connection_id not in self.connections:
+            raise ValueError("Flow is not from a live connection.")
+
+        asyncio_utils.create_task(
+            self.connections[connection_id].server_event(event),
+            name=f"inject_event",
+            keep_ref=True,
+            client=event.flow.client_conn.peername,
+        )
+
+    @command.command("inject.websocket")
+    def inject_websocket(
+        self, flow: Flow, to_client: bool, message: bytes, is_text: bool = True
+    ):
+        if not isinstance(flow, http.HTTPFlow) or not flow.websocket:
+            logger.warning("Cannot inject WebSocket messages into non-WebSocket flows.")
+            return
+
+        msg = websocket.WebSocketMessage(
+            Opcode.TEXT if is_text else Opcode.BINARY, not to_client, message
+        )
+        event = WebSocketMessageInjected(flow, msg)
+        try:
+            self.inject_event(event)
+        except ValueError as e:
+            logger.warning(str(e))
+
+    @command.command("inject.tcp")
+    def inject_tcp(self, flow: Flow, to_client: bool, message: bytes):
+        if not isinstance(flow, tcp.TCPFlow):
+            logger.warning("Cannot inject TCP messages into non-TCP flows.")
+            return
+
+        event = TcpMessageInjected(flow, tcp.TCPMessage(not to_client, message))
+        try:
+            self.inject_event(event)
+        except ValueError as e:
+            logger.warning(str(e))
+
+    @command.command("inject.udp")
+    def inject_udp(self, flow: Flow, to_client: bool, message: bytes):
+        if not isinstance(flow, udp.UDPFlow):
+            logger.warning("Cannot inject UDP messages into non-UDP flows.")
+            return
+
+        event = UdpMessageInjected(flow, udp.UDPMessage(not to_client, message))
+        try:
+            self.inject_event(event)
+        except ValueError as e:
+            logger.warning(str(e))
+
+    def server_connect(self, data: server_hooks.ServerConnectionHookData):
+        if data.server.sockname is None:
+            data.server.sockname = self._connect_addr
+
+        # Prevent mitmproxy from recursively connecting to itself.
+        assert data.server.address
+        connect_host, connect_port, *_ = data.server.address
+
+        for server in self.servers:
+            for listen_host, listen_port, *_ in server.listen_addrs:
+                self_connect = (
+                    connect_port == listen_port
+                    and connect_host in ("localhost", "127.0.0.1", "::1", listen_host)
+                    and server.mode.transport_protocol == data.server.transport_protocol
+                )
+                if self_connect:
+                    data.server.error = (
+                        "Request destination unknown. "
+                        "Unable to figure out where this request should be forwarded to."
+                    )
+                    return
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/readfile.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/readfile.py
new file mode 100644
index 0000000000000000000000000000000000000000..b3248cfbb7a96f7b517853d515b11c06b860cc3e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/readfile.py
@@ -0,0 +1,98 @@
+import asyncio
+import logging
+import os.path
+import sys
+from typing import BinaryIO
+from typing import Optional
+
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import io
+from mitmproxy.utils import asyncio_utils
+
+logger = logging.getLogger(__name__)
+
+
+class ReadFile:
+    """
+    An addon that handles reading from file on startup.
+    """
+
+    def __init__(self):
+        self.filter = None
+        self._read_task: asyncio.Task | None = None
+
+    def load(self, loader):
+        loader.add_option("rfile", Optional[str], None, "Read flows from file.")
+        loader.add_option(
+            "readfile_filter", Optional[str], None, "Read only matching flows."
+        )
+
+    def configure(self, updated):
+        if "readfile_filter" in updated:
+            if ctx.options.readfile_filter:
+                try:
+                    self.filter = flowfilter.parse(ctx.options.readfile_filter)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            else:
+                self.filter = None
+
+    async def load_flows(self, fo: BinaryIO) -> int:
+        cnt = 0
+        freader = io.FlowReader(fo)
+        try:
+            for flow in freader.stream():
+                if self.filter and not self.filter(flow):
+                    continue
+                await ctx.master.load_flow(flow)
+                cnt += 1
+        except (OSError, exceptions.FlowReadException) as e:
+            if cnt:
+                logging.warning("Flow file corrupted - loaded %i flows." % cnt)
+            else:
+                logging.error("Flow file corrupted.")
+            raise exceptions.FlowReadException(str(e)) from e
+        else:
+            return cnt
+
+    async def load_flows_from_path(self, path: str) -> int:
+        path = os.path.expanduser(path)
+        try:
+            with open(path, "rb") as f:
+                return await self.load_flows(f)
+        except OSError as e:
+            logging.error(f"Cannot load flows: {e}")
+            raise exceptions.FlowReadException(str(e)) from e
+
+    async def doread(self, rfile: str) -> None:
+        try:
+            await self.load_flows_from_path(rfile)
+        except exceptions.FlowReadException as e:
+            logger.exception(f"Failed to read {ctx.options.rfile}: {e}")
+
+    def running(self):
+        if ctx.options.rfile:
+            self._read_task = asyncio_utils.create_task(
+                self.doread(ctx.options.rfile),
+                name="readfile",
+                keep_ref=False,
+            )
+
+    @command.command("readfile.reading")
+    def reading(self) -> bool:
+        return bool(self._read_task and not self._read_task.done())
+
+
+class ReadFileStdin(ReadFile):
+    """Support the special case of "-" for reading from stdin"""
+
+    async def load_flows_from_path(self, path: str) -> int:
+        if path == "-":  # pragma: no cover
+            # Need to think about how to test this. This function is scheduled
+            # onto the event loop, where a sys.stdin mock has no effect.
+            return await self.load_flows(sys.stdin.buffer)
+        else:
+            return await super().load_flows_from_path(path)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/save.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/save.py
new file mode 100644
index 0000000000000000000000000000000000000000..0103bde60aff5863c65b8176bcedd5741e23e32a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/save.py
@@ -0,0 +1,197 @@
+import logging
+import os.path
+import sys
+from collections.abc import Sequence
+from datetime import datetime
+from functools import lru_cache
+from pathlib import Path
+from typing import Literal
+from typing import Optional
+
+import mitmproxy.types
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import dns
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy import io
+from mitmproxy import tcp
+from mitmproxy import udp
+from mitmproxy.log import ALERT
+
+
+@lru_cache
+def _path(path: str) -> str:
+    """Extract the path from a path spec (which may have an extra "+" at the front)"""
+    if path.startswith("+"):
+        path = path[1:]
+    return os.path.expanduser(path)
+
+
+@lru_cache
+def _mode(path: str) -> Literal["ab", "wb"]:
+    """Extract the writing mode (overwrite or append) from a path spec"""
+    if path.startswith("+"):
+        return "ab"
+    else:
+        return "wb"
+
+
+class Save:
+    def __init__(self) -> None:
+        self.stream: io.FilteredFlowWriter | None = None
+        self.filt: flowfilter.TFilter | None = None
+        self.active_flows: set[flow.Flow] = set()
+        self.current_path: str | None = None
+
+    def load(self, loader):
+        loader.add_option(
+            "save_stream_file",
+            Optional[str],
+            None,
+            """
+            Stream flows to file as they arrive. Prefix path with + to append.
+            The full path can use python strftime() formating, missing
+            directories are created as needed. A new file is opened every time
+            the formatted string changes.
+            """,
+        )
+        loader.add_option(
+            "save_stream_filter",
+            Optional[str],
+            None,
+            "Filter which flows are written to file.",
+        )
+
+    def configure(self, updated):
+        if "save_stream_filter" in updated:
+            if ctx.options.save_stream_filter:
+                try:
+                    self.filt = flowfilter.parse(ctx.options.save_stream_filter)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            else:
+                self.filt = None
+        if "save_stream_file" in updated or "save_stream_filter" in updated:
+            if ctx.options.save_stream_file:
+                try:
+                    self.maybe_rotate_to_new_file()
+                except OSError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+                assert self.stream
+                self.stream.flt = self.filt
+            else:
+                self.done()
+
+    def maybe_rotate_to_new_file(self) -> None:
+        path = datetime.today().strftime(_path(ctx.options.save_stream_file))
+        if self.current_path == path:
+            return
+
+        if self.stream:
+            self.stream.fo.close()
+            self.stream = None
+
+        new_log_file = Path(path)
+        new_log_file.parent.mkdir(parents=True, exist_ok=True)
+
+        f = new_log_file.open(_mode(ctx.options.save_stream_file))
+        self.stream = io.FilteredFlowWriter(f, self.filt)
+        self.current_path = path
+
+    def save_flow(self, flow: flow.Flow) -> None:
+        """
+        Write the flow to the stream, but first check if we need to rotate to a new file.
+        """
+        if not self.stream:
+            return
+        try:
+            self.maybe_rotate_to_new_file()
+            self.stream.add(flow)
+        except OSError as e:
+            # If we somehow fail to write flows to a logfile, we really want to crash visibly
+            # instead of letting traffic through unrecorded.
+            # No normal logging here, that would not be triggered anymore.
+            sys.stderr.write(f"Error while writing to {self.current_path}: {e}")
+            sys.exit(1)
+        else:
+            self.active_flows.discard(flow)
+
+    def done(self) -> None:
+        if self.stream:
+            for f in self.active_flows:
+                self.stream.add(f)
+            self.active_flows.clear()
+
+            self.current_path = None
+            self.stream.fo.close()
+            self.stream = None
+
+    @command.command("save.file")
+    def save(self, flows: Sequence[flow.Flow], path: mitmproxy.types.Path) -> None:
+        """
+        Save flows to a file. If the path starts with a +, flows are
+        appended to the file, otherwise it is over-written.
+        """
+        try:
+            with open(_path(path), _mode(path)) as f:
+                stream = io.FlowWriter(f)
+                for i in flows:
+                    stream.add(i)
+        except OSError as e:
+            raise exceptions.CommandError(e) from e
+        if path.endswith(".har") or path.endswith(".zhar"):  # pragma: no cover
+            logging.log(
+                ALERT,
+                f"Saved as mitmproxy dump file. To save HAR files, use the `save.har` command.",
+            )
+        else:
+            logging.log(ALERT, f"Saved {len(flows)} flows.")
+
+    def tcp_start(self, flow: tcp.TCPFlow):
+        if self.stream:
+            self.active_flows.add(flow)
+
+    def tcp_end(self, flow: tcp.TCPFlow):
+        self.save_flow(flow)
+
+    def tcp_error(self, flow: tcp.TCPFlow):
+        self.tcp_end(flow)
+
+    def udp_start(self, flow: udp.UDPFlow):
+        if self.stream:
+            self.active_flows.add(flow)
+
+    def udp_end(self, flow: udp.UDPFlow):
+        self.save_flow(flow)
+
+    def udp_error(self, flow: udp.UDPFlow):
+        self.udp_end(flow)
+
+    def websocket_end(self, flow: http.HTTPFlow):
+        self.save_flow(flow)
+
+    def request(self, flow: http.HTTPFlow):
+        if self.stream:
+            self.active_flows.add(flow)
+
+    def response(self, flow: http.HTTPFlow):
+        # websocket flows will receive a websocket_end,
+        # we don't want to persist them here already
+        if flow.websocket is None:
+            self.save_flow(flow)
+
+    def error(self, flow: http.HTTPFlow):
+        self.response(flow)
+
+    def dns_request(self, flow: dns.DNSFlow):
+        if self.stream:
+            self.active_flows.add(flow)
+
+    def dns_response(self, flow: dns.DNSFlow):
+        self.save_flow(flow)
+
+    def dns_error(self, flow: dns.DNSFlow):
+        self.save_flow(flow)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/savehar.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/savehar.py
new file mode 100644
index 0000000000000000000000000000000000000000..d99308aaf8688b5e5716abaf7bd03fed591dfdf4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/savehar.py
@@ -0,0 +1,312 @@
+"""Write flow objects to a HAR file"""
+
+import base64
+import json
+import logging
+import zlib
+from collections.abc import Sequence
+from datetime import datetime
+from datetime import timezone
+from typing import Any
+
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy import types
+from mitmproxy import version
+from mitmproxy.addonmanager import Loader
+from mitmproxy.connection import Server
+from mitmproxy.coretypes.multidict import _MultiDict
+from mitmproxy.log import ALERT
+from mitmproxy.utils import human
+from mitmproxy.utils import strutils
+
+logger = logging.getLogger(__name__)
+
+
+class SaveHar:
+    def __init__(self) -> None:
+        self.flows: list[flow.Flow] = []
+        self.filt: flowfilter.TFilter | None = None
+
+    @command.command("save.har")
+    def export_har(self, flows: Sequence[flow.Flow], path: types.Path) -> None:
+        """Export flows to an HAR (HTTP Archive) file."""
+
+        har = json.dumps(self.make_har(flows), indent=4).encode()
+
+        if path.endswith(".zhar"):
+            har = zlib.compress(har, 9)
+
+        with open(path, "wb") as f:
+            f.write(har)
+
+        logging.log(ALERT, f"HAR file saved ({human.pretty_size(len(har))} bytes).")
+
+    def make_har(self, flows: Sequence[flow.Flow]) -> dict:
+        entries = []
+        skipped = 0
+        # A list of server seen till now is maintained so we can avoid
+        # using 'connect' time for entries that use an existing connection.
+        servers_seen: set[Server] = set()
+
+        for f in flows:
+            if isinstance(f, http.HTTPFlow):
+                entries.append(self.flow_entry(f, servers_seen))
+            else:
+                skipped += 1
+
+        if skipped > 0:
+            logger.info(f"Skipped {skipped} flows that weren't HTTP flows.")
+
+        return {
+            "log": {
+                "version": "1.2",
+                "creator": {
+                    "name": "mitmproxy",
+                    "version": version.VERSION,
+                    "comment": "",
+                },
+                "pages": [],
+                "entries": entries,
+            }
+        }
+
+    def load(self, loader: Loader):
+        loader.add_option(
+            "hardump",
+            str,
+            "",
+            """
+            Save a HAR file with all flows on exit.
+            You may select particular flows by setting save_stream_filter.
+            For mitmdump, enabling this option will mean that flows are kept in memory.
+            """,
+        )
+
+    def configure(self, updated):
+        if "save_stream_filter" in updated:
+            if ctx.options.save_stream_filter:
+                try:
+                    self.filt = flowfilter.parse(ctx.options.save_stream_filter)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            else:
+                self.filt = None
+
+        if "hardump" in updated:
+            if not ctx.options.hardump:
+                self.flows = []
+
+    def response(self, flow: http.HTTPFlow) -> None:
+        # websocket flows will receive a websocket_end,
+        # we don't want to persist them here already
+        if flow.websocket is None:
+            self._save_flow(flow)
+
+    def error(self, flow: http.HTTPFlow) -> None:
+        self.response(flow)
+
+    def websocket_end(self, flow: http.HTTPFlow) -> None:
+        self._save_flow(flow)
+
+    def _save_flow(self, flow: http.HTTPFlow) -> None:
+        if ctx.options.hardump:
+            flow_matches = self.filt is None or self.filt(flow)
+            if flow_matches:
+                self.flows.append(flow)
+
+    def done(self):
+        if ctx.options.hardump:
+            if ctx.options.hardump == "-":
+                har = self.make_har(self.flows)
+                print(json.dumps(har, indent=4))
+            else:
+                self.export_har(self.flows, ctx.options.hardump)
+
+    def flow_entry(self, flow: http.HTTPFlow, servers_seen: set[Server]) -> dict:
+        """Creates HAR entry from flow"""
+
+        if flow.server_conn in servers_seen:
+            connect_time = -1.0
+            ssl_time = -1.0
+        elif flow.server_conn.timestamp_tcp_setup:
+            assert flow.server_conn.timestamp_start
+            connect_time = 1000 * (
+                flow.server_conn.timestamp_tcp_setup - flow.server_conn.timestamp_start
+            )
+
+            if flow.server_conn.timestamp_tls_setup:
+                ssl_time = 1000 * (
+                    flow.server_conn.timestamp_tls_setup
+                    - flow.server_conn.timestamp_tcp_setup
+                )
+            else:
+                ssl_time = -1.0
+            servers_seen.add(flow.server_conn)
+        else:
+            connect_time = -1.0
+            ssl_time = -1.0
+
+        if flow.request.timestamp_end:
+            send = 1000 * (flow.request.timestamp_end - flow.request.timestamp_start)
+        else:
+            send = 0
+
+        if flow.response and flow.request.timestamp_end:
+            wait = 1000 * (flow.response.timestamp_start - flow.request.timestamp_end)
+        else:
+            wait = 0
+
+        if flow.response and flow.response.timestamp_end:
+            receive = 1000 * (
+                flow.response.timestamp_end - flow.response.timestamp_start
+            )
+
+        else:
+            receive = 0
+
+        timings: dict[str, float | None] = {
+            "connect": connect_time,
+            "ssl": ssl_time,
+            "send": send,
+            "receive": receive,
+            "wait": wait,
+        }
+
+        if flow.response:
+            try:
+                content = flow.response.content
+            except ValueError:
+                content = flow.response.raw_content
+            response_body_size = (
+                len(flow.response.raw_content) if flow.response.raw_content else 0
+            )
+            response_body_decoded_size = len(content) if content else 0
+            response_body_compression = response_body_decoded_size - response_body_size
+            response = {
+                "status": flow.response.status_code,
+                "statusText": flow.response.reason,
+                "httpVersion": flow.response.http_version,
+                "cookies": self.format_response_cookies(flow.response),
+                "headers": self.format_multidict(flow.response.headers),
+                "content": {
+                    "size": response_body_size,
+                    "compression": response_body_compression,
+                    "mimeType": flow.response.headers.get("Content-Type", ""),
+                },
+                "redirectURL": flow.response.headers.get("Location", ""),
+                "headersSize": len(str(flow.response.headers)),
+                "bodySize": response_body_size,
+            }
+            if content and strutils.is_mostly_bin(content):
+                response["content"]["text"] = base64.b64encode(content).decode()
+                response["content"]["encoding"] = "base64"
+            else:
+                text_content = flow.response.get_text(strict=False)
+                if text_content is None:
+                    response["content"]["text"] = ""
+                else:
+                    response["content"]["text"] = text_content
+        else:
+            response = {
+                "status": 0,
+                "statusText": "",
+                "httpVersion": "",
+                "headers": [],
+                "cookies": [],
+                "content": {},
+                "redirectURL": "",
+                "headersSize": -1,
+                "bodySize": -1,
+                "_transferSize": 0,
+                "_error": None,
+            }
+            if flow.error:
+                response["_error"] = flow.error.msg
+
+        if flow.request.method == "CONNECT":
+            url = f"https://{flow.request.pretty_url}/"
+        else:
+            url = flow.request.pretty_url
+
+        entry: dict[str, Any] = {
+            "startedDateTime": datetime.fromtimestamp(
+                flow.request.timestamp_start, timezone.utc
+            ).isoformat(),
+            "time": sum(v for v in timings.values() if v is not None and v >= 0),
+            "request": {
+                "method": flow.request.method,
+                "url": url,
+                "httpVersion": flow.request.http_version,
+                "cookies": self.format_multidict(flow.request.cookies),
+                "headers": self.format_multidict(flow.request.headers),
+                "queryString": self.format_multidict(flow.request.query),
+                "headersSize": len(str(flow.request.headers)),
+                "bodySize": len(flow.request.raw_content)
+                if flow.request.raw_content
+                else 0,
+            },
+            "response": response,
+            "cache": {},
+            "timings": timings,
+        }
+
+        if flow.request.method in ["POST", "PUT", "PATCH"]:
+            params = self.format_multidict(flow.request.urlencoded_form)
+            entry["request"]["postData"] = {
+                "mimeType": flow.request.headers.get("Content-Type", ""),
+                "text": flow.request.get_text(strict=False),
+                "params": params,
+            }
+
+        if flow.server_conn.peername:
+            entry["serverIPAddress"] = str(flow.server_conn.peername[0])
+
+        websocket_messages = []
+        if flow.websocket:
+            for message in flow.websocket.messages:
+                if message.is_text:
+                    data = message.text
+                else:
+                    data = base64.b64encode(message.content).decode()
+                websocket_message = {
+                    "type": "send" if message.from_client else "receive",
+                    "time": message.timestamp,
+                    "opcode": message.type.value,
+                    "data": data,
+                }
+                websocket_messages.append(websocket_message)
+
+            entry["_resourceType"] = "websocket"
+            entry["_webSocketMessages"] = websocket_messages
+        return entry
+
+    def format_response_cookies(self, response: http.Response) -> list[dict]:
+        """Formats the response's cookie header to list of cookies"""
+        cookie_list = response.cookies.items(multi=True)
+        rv = []
+        for name, (value, attrs) in cookie_list:
+            cookie = {
+                "name": name,
+                "value": value,
+                "path": attrs.get("path", "/"),
+                "domain": attrs.get("domain", ""),
+                "httpOnly": "httpOnly" in attrs,
+                "secure": "secure" in attrs,
+            }
+            # TODO: handle expires attribute here.
+            # This is not quite trivial because we need to parse random date formats.
+            # For now, we just ignore the attribute.
+
+            if "sameSite" in attrs:
+                cookie["sameSite"] = attrs["sameSite"]
+
+            rv.append(cookie)
+        return rv
+
+    def format_multidict(self, obj: _MultiDict[str, str]) -> list[dict]:
+        return [{"name": k, "value": v} for k, v in obj.items(multi=True)]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/script.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/script.py
new file mode 100644
index 0000000000000000000000000000000000000000..e86272adeb420f873ff10bfa049c1d19617dae0e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/script.py
@@ -0,0 +1,229 @@
+import asyncio
+import importlib.machinery
+import importlib.util
+import logging
+import os
+import sys
+import types
+from collections.abc import Sequence
+
+import mitmproxy.types as mtypes
+from mitmproxy import addonmanager
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import eventsequence
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import hooks
+from mitmproxy.utils import asyncio_utils
+
+logger = logging.getLogger(__name__)
+
+
+def load_script(path: str) -> types.ModuleType | None:
+    fullname = "__mitmproxy_script__.{}".format(
+        os.path.splitext(os.path.basename(path))[0]
+    )
+    # the fullname is not unique among scripts, so if there already is an existing script with said
+    # fullname, remove it.
+    sys.modules.pop(fullname, None)
+    oldpath = sys.path
+    sys.path.insert(0, os.path.dirname(path))
+
+    try:
+        loader = importlib.machinery.SourceFileLoader(fullname, path)
+        spec = importlib.util.spec_from_loader(fullname, loader=loader)
+        assert spec
+        m = importlib.util.module_from_spec(spec)
+        loader.exec_module(m)
+        if not getattr(m, "name", None):
+            m.name = path  # type: ignore
+        return m
+    except ImportError as e:
+        if getattr(sys, "frozen", False):
+            e.msg += (
+                f".\n"
+                f"Note that mitmproxy's binaries include their own Python environment. "
+                f"If your addon requires the installation of additional dependencies, "
+                f"please install mitmproxy from PyPI "
+                f"(https://docs.mitmproxy.org/stable/overview-installation/#installation-from-the-python-package-index-pypi)."
+            )
+        script_error_handler(path, e)
+        return None
+    except Exception as e:
+        script_error_handler(path, e)
+        return None
+    finally:
+        sys.path[:] = oldpath
+
+
+def script_error_handler(path: str, exc: Exception) -> None:
+    """
+    Log errors during script loading.
+    """
+    tback = exc.__traceback__
+    tback = addonmanager.cut_traceback(
+        tback, "invoke_addon_sync"
+    )  # we're calling configure() on load
+    tback = addonmanager.cut_traceback(
+        tback, "_call_with_frames_removed"
+    )  # module execution from importlib
+    logger.error(f"error in script {path}", exc_info=(type(exc), exc, tback))
+
+
+ReloadInterval = 1
+
+
+class Script:
+    """
+    An addon that manages a single script.
+    """
+
+    def __init__(self, path: str, reload: bool) -> None:
+        self.name = "scriptmanager:" + path
+        self.path = path
+        self.fullpath = os.path.expanduser(path.strip("'\" "))
+        self.ns: types.ModuleType | None = None
+        self.is_running = False
+
+        if not os.path.isfile(self.fullpath):
+            raise exceptions.OptionsError(f"No such script: {self.fullpath}")
+
+        self.reloadtask = None
+        if reload:
+            self.reloadtask = asyncio_utils.create_task(
+                self.watcher(),
+                name=f"script watcher for {path}",
+                keep_ref=False,
+            )
+        else:
+            self.loadscript()
+
+    def running(self):
+        self.is_running = True
+
+    def done(self):
+        if self.reloadtask:
+            self.reloadtask.cancel()
+
+    @property
+    def addons(self):
+        return [self.ns] if self.ns else []
+
+    def loadscript(self):
+        logger.info("Loading script %s" % self.path)
+        if self.ns:
+            ctx.master.addons.remove(self.ns)
+        self.ns = None
+        with addonmanager.safecall():
+            ns = load_script(self.fullpath)
+            ctx.master.addons.register(ns)
+            self.ns = ns
+        if self.ns:
+            try:
+                ctx.master.addons.invoke_addon_sync(
+                    self.ns, hooks.ConfigureHook(ctx.options.keys())
+                )
+            except Exception as e:
+                script_error_handler(self.fullpath, e)
+            if self.is_running:
+                # We're already running, so we call that on the addon now.
+                ctx.master.addons.invoke_addon_sync(self.ns, hooks.RunningHook())
+
+    async def watcher(self):
+        # Script loading is terminally confused at the moment.
+        # This here is a stopgap workaround to defer loading.
+        await asyncio.sleep(0)
+        last_mtime = 0.0
+        while True:
+            try:
+                mtime = os.stat(self.fullpath).st_mtime
+            except FileNotFoundError:
+                logger.info("Removing script %s" % self.path)
+                scripts = list(ctx.options.scripts)
+                scripts.remove(self.path)
+                ctx.options.update(scripts=scripts)
+                return
+            if mtime > last_mtime:
+                self.loadscript()
+                last_mtime = mtime
+            await asyncio.sleep(ReloadInterval)
+
+
+class ScriptLoader:
+    """
+    An addon that manages loading scripts from options.
+    """
+
+    def __init__(self):
+        self.is_running = False
+        self.addons = []
+
+    def load(self, loader):
+        loader.add_option("scripts", Sequence[str], [], "Execute a script.")
+
+    def running(self):
+        self.is_running = True
+
+    @command.command("script.run")
+    def script_run(self, flows: Sequence[flow.Flow], path: mtypes.Path) -> None:
+        """
+        Run a script on the specified flows. The script is configured with
+        the current options and all lifecycle events for each flow are
+        simulated. Note that the load event is not invoked.
+        """
+        if not os.path.isfile(path):
+            logger.error("No such script: %s" % path)
+            return
+        mod = load_script(path)
+        if mod:
+            with addonmanager.safecall():
+                ctx.master.addons.invoke_addon_sync(
+                    mod,
+                    hooks.ConfigureHook(ctx.options.keys()),
+                )
+                ctx.master.addons.invoke_addon_sync(mod, hooks.RunningHook())
+                for f in flows:
+                    for evt in eventsequence.iterate(f):
+                        ctx.master.addons.invoke_addon_sync(mod, evt)
+
+    def configure(self, updated):
+        if "scripts" in updated:
+            for s in ctx.options.scripts:
+                if ctx.options.scripts.count(s) > 1:
+                    raise exceptions.OptionsError("Duplicate script")
+
+            for a in self.addons[:]:
+                if a.path not in ctx.options.scripts:
+                    logger.info("Un-loading script: %s" % a.path)
+                    ctx.master.addons.remove(a)
+                    self.addons.remove(a)
+
+            # The machinations below are to ensure that:
+            #   - Scripts remain in the same order
+            #   - Scripts are not initialized un-necessarily. If only a
+            #   script's order in the script list has changed, it is just
+            #   moved.
+
+            current = {}
+            for a in self.addons:
+                current[a.path] = a
+
+            ordered = []
+            newscripts = []
+            for s in ctx.options.scripts:
+                if s in current:
+                    ordered.append(current[s])
+                else:
+                    sc = Script(s, True)
+                    ordered.append(sc)
+                    newscripts.append(sc)
+
+            self.addons = ordered
+
+            for s in newscripts:
+                ctx.master.addons.register(s)
+                if self.is_running:
+                    # If we're already running, we configure and tell the addon
+                    # we're up and running.
+                    ctx.master.addons.invoke_addon_sync(s, hooks.RunningHook())
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/server_side_events.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/server_side_events.py
new file mode 100644
index 0000000000000000000000000000000000000000..18d740d4c721e037c45e2c7e2a5a7267369ae30a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/server_side_events.py
@@ -0,0 +1,23 @@
+import logging
+
+from mitmproxy import http
+
+
+class ServerSideEvents:
+    """
+    Server-Side Events are currently swallowed if there's no streaming,
+    see https://github.com/mitmproxy/mitmproxy/issues/4469.
+
+    Until this bug is fixed, this addon warns the user about this.
+    """
+
+    def response(self, flow: http.HTTPFlow):
+        assert flow.response
+        is_sse = flow.response.headers.get("content-type", "").startswith(
+            "text/event-stream"
+        )
+        if is_sse and not flow.response.stream:
+            logging.warning(
+                "mitmproxy currently does not support server side events. As a workaround, you can enable response "
+                "streaming for such flows: https://github.com/mitmproxy/mitmproxy/issues/4469"
+            )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/serverplayback.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/serverplayback.py
new file mode 100644
index 0000000000000000000000000000000000000000..c5b13b1a20edbfe0498c39136bed70e32037e0d7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/serverplayback.py
@@ -0,0 +1,305 @@
+import hashlib
+import logging
+import urllib
+from collections.abc import Hashable
+from collections.abc import Sequence
+from typing import Any
+
+import mitmproxy.types
+from mitmproxy import command
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flow
+from mitmproxy import hooks
+from mitmproxy import http
+from mitmproxy import io
+
+logger = logging.getLogger(__name__)
+
+HASH_OPTIONS = [
+    "server_replay_ignore_content",
+    "server_replay_ignore_host",
+    "server_replay_ignore_params",
+    "server_replay_ignore_payload_params",
+    "server_replay_ignore_port",
+    "server_replay_use_headers",
+]
+
+
+class ServerPlayback:
+    flowmap: dict[Hashable, list[http.HTTPFlow]]
+    configured: bool
+
+    def __init__(self):
+        self.flowmap = {}
+        self.configured = False
+
+    def load(self, loader):
+        loader.add_option(
+            "server_replay_kill_extra",
+            bool,
+            False,
+            "Kill extra requests during replay (for which no replayable response was found)."
+            "[Deprecated, prefer to use server_replay_extra='kill']",
+        )
+        loader.add_option(
+            "server_replay_extra",
+            str,
+            "forward",
+            "Behaviour for extra requests during replay for which no replayable response was found. "
+            "Setting a numeric string value will return an empty HTTP response with the respective status code.",
+            choices=["forward", "kill", "204", "400", "404", "500"],
+        )
+        loader.add_option(
+            "server_replay_reuse",
+            bool,
+            False,
+            """
+            Don't remove flows from server replay state after use. This makes it
+            possible to replay same response multiple times.
+            """,
+        )
+        loader.add_option(
+            "server_replay_nopop",
+            bool,
+            False,
+            """
+            Deprecated alias for `server_replay_reuse`.
+            """,
+        )
+        loader.add_option(
+            "server_replay_refresh",
+            bool,
+            True,
+            """
+            Refresh server replay responses by adjusting date, expires and
+            last-modified headers, as well as adjusting cookie expiration.
+            """,
+        )
+        loader.add_option(
+            "server_replay_use_headers",
+            Sequence[str],
+            [],
+            """
+            Request headers that need to match while searching for a saved flow
+            to replay.
+            """,
+        )
+        loader.add_option(
+            "server_replay",
+            Sequence[str],
+            [],
+            "Replay server responses from a saved file.",
+        )
+        loader.add_option(
+            "server_replay_ignore_content",
+            bool,
+            False,
+            "Ignore request content while searching for a saved flow to replay.",
+        )
+        loader.add_option(
+            "server_replay_ignore_params",
+            Sequence[str],
+            [],
+            """
+            Request parameters to be ignored while searching for a saved flow
+            to replay.
+            """,
+        )
+        loader.add_option(
+            "server_replay_ignore_payload_params",
+            Sequence[str],
+            [],
+            """
+            Request payload parameters (application/x-www-form-urlencoded or
+            multipart/form-data) to be ignored while searching for a saved flow
+            to replay.
+            """,
+        )
+        loader.add_option(
+            "server_replay_ignore_host",
+            bool,
+            False,
+            """
+            Ignore request destination host while searching for a saved flow
+            to replay.
+            """,
+        )
+        loader.add_option(
+            "server_replay_ignore_port",
+            bool,
+            False,
+            """
+            Ignore request destination port while searching for a saved flow
+            to replay.
+            """,
+        )
+
+    @command.command("replay.server")
+    def load_flows(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Replay server responses from flows.
+        """
+        self.flowmap = {}
+        self.add_flows(flows)
+
+    @command.command("replay.server.add")
+    def add_flows(self, flows: Sequence[flow.Flow]) -> None:
+        """
+        Add responses from flows to server replay list.
+        """
+        for f in flows:
+            if isinstance(f, http.HTTPFlow):
+                lst = self.flowmap.setdefault(self._hash(f), [])
+                lst.append(f)
+        ctx.master.addons.trigger(hooks.UpdateHook([]))
+
+    @command.command("replay.server.file")
+    def load_file(self, path: mitmproxy.types.Path) -> None:
+        try:
+            flows = io.read_flows_from_paths([path])
+        except exceptions.FlowReadException as e:
+            raise exceptions.CommandError(str(e))
+        self.load_flows(flows)
+
+    @command.command("replay.server.stop")
+    def clear(self) -> None:
+        """
+        Stop server replay.
+        """
+        self.flowmap = {}
+        ctx.master.addons.trigger(hooks.UpdateHook([]))
+
+    @command.command("replay.server.count")
+    def count(self) -> int:
+        return sum(len(i) for i in self.flowmap.values())
+
+    def _hash(self, flow: http.HTTPFlow) -> Hashable:
+        """
+        Calculates a loose hash of the flow request.
+        """
+        r = flow.request
+        _, _, path, _, query, _ = urllib.parse.urlparse(r.url)
+        queriesArray = urllib.parse.parse_qsl(query, keep_blank_values=True)
+
+        key: list[Any] = [str(r.scheme), str(r.method), str(path)]
+        if not ctx.options.server_replay_ignore_content:
+            if ctx.options.server_replay_ignore_payload_params and r.multipart_form:
+                key.extend(
+                    (k, v)
+                    for k, v in r.multipart_form.items(multi=True)
+                    if k.decode(errors="replace")
+                    not in ctx.options.server_replay_ignore_payload_params
+                )
+            elif ctx.options.server_replay_ignore_payload_params and r.urlencoded_form:
+                key.extend(
+                    (k, v)
+                    for k, v in r.urlencoded_form.items(multi=True)
+                    if k not in ctx.options.server_replay_ignore_payload_params
+                )
+            else:
+                key.append(str(r.raw_content))
+
+        if not ctx.options.server_replay_ignore_host:
+            key.append(r.pretty_host)
+        if not ctx.options.server_replay_ignore_port:
+            key.append(r.port)
+
+        filtered = []
+        ignore_params = ctx.options.server_replay_ignore_params or []
+        for p in queriesArray:
+            if p[0] not in ignore_params:
+                filtered.append(p)
+        for p in filtered:
+            key.append(p[0])
+            key.append(p[1])
+
+        if ctx.options.server_replay_use_headers:
+            headers = []
+            for i in ctx.options.server_replay_use_headers:
+                v = r.headers.get(i)
+                headers.append((i, v))
+            key.append(headers)
+        return hashlib.sha256(repr(key).encode("utf8", "surrogateescape")).digest()
+
+    def next_flow(self, flow: http.HTTPFlow) -> http.HTTPFlow | None:
+        """
+        Returns the next flow object, or None if no matching flow was
+        found.
+        """
+        hash = self._hash(flow)
+        if hash in self.flowmap:
+            if ctx.options.server_replay_reuse or ctx.options.server_replay_nopop:
+                return next(
+                    (flow for flow in self.flowmap[hash] if flow.response), None
+                )
+            else:
+                ret = self.flowmap[hash].pop(0)
+                while not ret.response:
+                    if self.flowmap[hash]:
+                        ret = self.flowmap[hash].pop(0)
+                    else:
+                        del self.flowmap[hash]
+                        return None
+                if not self.flowmap[hash]:
+                    del self.flowmap[hash]
+                return ret
+        else:
+            return None
+
+    def configure(self, updated):
+        if ctx.options.server_replay_kill_extra:
+            logger.warning(
+                "server_replay_kill_extra has been deprecated, "
+                "please update your config to use server_replay_extra='kill'."
+            )
+        if ctx.options.server_replay_nopop:  # pragma: no cover
+            logger.error(
+                "server_replay_nopop has been renamed to server_replay_reuse, please update your config."
+            )
+        if not self.configured and ctx.options.server_replay:
+            self.configured = True
+            try:
+                flows = io.read_flows_from_paths(ctx.options.server_replay)
+            except exceptions.FlowReadException as e:
+                raise exceptions.OptionsError(str(e))
+            self.load_flows(flows)
+        if any(option in updated for option in HASH_OPTIONS):
+            self.recompute_hashes()
+
+    def recompute_hashes(self) -> None:
+        """
+        Rebuild flowmap if the hashing method has changed during execution,
+        see https://github.com/mitmproxy/mitmproxy/issues/4506
+        """
+        flows = [flow for lst in self.flowmap.values() for flow in lst]
+        self.load_flows(flows)
+
+    def request(self, f: http.HTTPFlow) -> None:
+        if self.flowmap:
+            rflow = self.next_flow(f)
+            if rflow:
+                assert rflow.response
+                response = rflow.response.copy()
+                if ctx.options.server_replay_refresh:
+                    response.refresh()
+                f.response = response
+                f.is_replay = "response"
+            elif (
+                ctx.options.server_replay_kill_extra
+                or ctx.options.server_replay_extra == "kill"
+            ):
+                logging.warning(
+                    "server_playback: killed non-replay request {}".format(
+                        f.request.url
+                    )
+                )
+                f.kill()
+            elif ctx.options.server_replay_extra != "forward":
+                logging.warning(
+                    "server_playback: returned {} non-replay request {}".format(
+                        ctx.options.server_replay_extra, f.request.url
+                    )
+                )
+                f.response = http.Response.make(int(ctx.options.server_replay_extra))
+                f.is_replay = "response"
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/stickyauth.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/stickyauth.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd3b4e49d2c8c36608c4bbbfcd34a090fca14e49
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/stickyauth.py
@@ -0,0 +1,38 @@
+from typing import Optional
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+
+
+class StickyAuth:
+    def __init__(self):
+        self.flt = None
+        self.hosts = {}
+
+    def load(self, loader):
+        loader.add_option(
+            "stickyauth",
+            Optional[str],
+            None,
+            "Set sticky auth filter. Matched against requests.",
+        )
+
+    def configure(self, updated):
+        if "stickyauth" in updated:
+            if ctx.options.stickyauth:
+                try:
+                    self.flt = flowfilter.parse(ctx.options.stickyauth)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            else:
+                self.flt = None
+
+    def request(self, flow):
+        if self.flt:
+            host = flow.request.host
+            if "authorization" in flow.request.headers:
+                self.hosts[host] = flow.request.headers["authorization"]
+            elif flowfilter.match(self.flt, flow):
+                if host in self.hosts:
+                    flow.request.headers["authorization"] = self.hosts[host]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/stickycookie.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/stickycookie.py
new file mode 100644
index 0000000000000000000000000000000000000000..11b4773bf59b176049effa96665ef7475e09b3e7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/stickycookie.py
@@ -0,0 +1,97 @@
+import collections
+from http import cookiejar
+from typing import Optional
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import http
+from mitmproxy.net.http import cookies
+
+TOrigin = tuple[str, int, str]
+
+
+def ckey(attrs: dict[str, str], f: http.HTTPFlow) -> TOrigin:
+    """
+    Returns a (domain, port, path) tuple.
+    """
+    domain = f.request.host
+    path = "/"
+    if "domain" in attrs:
+        domain = attrs["domain"]
+    if "path" in attrs:
+        path = attrs["path"]
+    return (domain, f.request.port, path)
+
+
+def domain_match(a: str, b: str) -> bool:
+    if cookiejar.domain_match(a, b):  # type: ignore
+        return True
+    elif cookiejar.domain_match(a, b.strip(".")):  # type: ignore
+        return True
+    return False
+
+
+class StickyCookie:
+    def __init__(self) -> None:
+        self.jar: collections.defaultdict[TOrigin, dict[str, str]] = (
+            collections.defaultdict(dict)
+        )
+        self.flt: flowfilter.TFilter | None = None
+
+    def load(self, loader):
+        loader.add_option(
+            "stickycookie",
+            Optional[str],
+            None,
+            "Set sticky cookie filter. Matched against requests.",
+        )
+
+    def configure(self, updated):
+        if "stickycookie" in updated:
+            if ctx.options.stickycookie:
+                try:
+                    self.flt = flowfilter.parse(ctx.options.stickycookie)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            else:
+                self.flt = None
+
+    def response(self, flow: http.HTTPFlow):
+        assert flow.response
+        if self.flt:
+            for name, (value, attrs) in flow.response.cookies.items(multi=True):
+                # FIXME: We now know that Cookie.py screws up some cookies with
+                # valid RFC 822/1123 datetime specifications for expiry. Sigh.
+                dom_port_path = ckey(attrs, flow)
+
+                if domain_match(flow.request.host, dom_port_path[0]):
+                    if cookies.is_expired(attrs):
+                        # Remove the cookie from jar
+                        self.jar[dom_port_path].pop(name, None)
+
+                        # If all cookies of a dom_port_path have been removed
+                        # then remove it from the jar itself
+                        if not self.jar[dom_port_path]:
+                            self.jar.pop(dom_port_path, None)
+                    else:
+                        self.jar[dom_port_path][name] = value
+
+    def request(self, flow: http.HTTPFlow):
+        if self.flt:
+            cookie_list: list[tuple[str, str]] = []
+            if flowfilter.match(self.flt, flow):
+                for (domain, port, path), c in self.jar.items():
+                    match = [
+                        domain_match(flow.request.host, domain),
+                        flow.request.port == port,
+                        flow.request.path.startswith(path),
+                    ]
+                    if all(match):
+                        cookie_list.extend(c.items())
+            if cookie_list:
+                # FIXME: we need to formalise this...
+                flow.metadata["stickycookie"] = True
+                flow.request.headers["cookie"] = cookies.format_cookie_header(
+                    cookie_list
+                )
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/strip_dns_https_records.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/strip_dns_https_records.py
new file mode 100644
index 0000000000000000000000000000000000000000..b43383426dcafb59f01ef6f1a1b67ddf47717a49
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/strip_dns_https_records.py
@@ -0,0 +1,37 @@
+from mitmproxy import ctx
+from mitmproxy import dns
+from mitmproxy.net.dns import types
+
+
+class StripDnsHttpsRecords:
+    def load(self, loader):
+        loader.add_option(
+            "strip_ech",
+            bool,
+            True,
+            "Strip Encrypted ClientHello (ECH) data from DNS HTTPS records so that mitmproxy can generate matching certificates.",
+        )
+
+    def dns_response(self, flow: dns.DNSFlow):
+        assert flow.response
+        if ctx.options.strip_ech:
+            for answer in flow.response.answers:
+                if answer.type == types.HTTPS:
+                    answer.https_ech = None
+        if not ctx.options.http3:
+            for answer in flow.response.answers:
+                if (
+                    answer.type == types.HTTPS
+                    and answer.https_alpn is not None
+                    and any(
+                        # HTTP/3 or any of the spec drafts (h3-...)?
+                        a == b"h3" or a.startswith(b"h3-")
+                        for a in answer.https_alpn
+                    )
+                ):
+                    alpns = tuple(
+                        a
+                        for a in answer.https_alpn
+                        if a != b"h3" and not a.startswith(b"h3-")
+                    )
+                    answer.https_alpn = alpns or None
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/termlog.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/termlog.py
new file mode 100644
index 0000000000000000000000000000000000000000..0bf1b6384842658deeaa3631fd6ded79d8deb5e8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/termlog.py
@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+import asyncio
+import logging
+import sys
+from typing import IO
+
+from mitmproxy import ctx
+from mitmproxy import log
+from mitmproxy.utils import vt_codes
+
+
+class TermLog:
+    _teardown_task: asyncio.Task | None = None
+
+    def __init__(self, out: IO[str] | None = None):
+        self.logger = TermLogHandler(out)
+        self.logger.install()
+
+    def load(self, loader):
+        loader.add_option(
+            "termlog_verbosity", str, "info", "Log verbosity.", choices=log.LogLevels
+        )
+        self.logger.setLevel(logging.INFO)
+
+    def configure(self, updated):
+        if "termlog_verbosity" in updated:
+            self.logger.setLevel(ctx.options.termlog_verbosity.upper())
+
+    def uninstall(self) -> None:
+        # uninstall the log dumper.
+        # This happens at the very very end after done() is completed,
+        # because we don't want to uninstall while other addons are still logging.
+        self.logger.uninstall()
+
+
+class TermLogHandler(log.MitmLogHandler):
+    def __init__(self, out: IO[str] | None = None):
+        super().__init__()
+        self.file: IO[str] = out or sys.stdout
+        self.has_vt_codes = vt_codes.ensure_supported(self.file)
+        self.formatter = log.MitmFormatter(self.has_vt_codes)
+
+    def emit(self, record: logging.LogRecord) -> None:
+        try:
+            print(self.format(record), file=self.file)
+        except OSError:
+            # We cannot print, exit immediately.
+            # See https://github.com/mitmproxy/mitmproxy/issues/4669
+            sys.exit(1)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/tlsconfig.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/tlsconfig.py
new file mode 100644
index 0000000000000000000000000000000000000000..89d18c33ab362aac40fb719f0ea8ef3609fed370
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/tlsconfig.py
@@ -0,0 +1,654 @@
+import ipaddress
+import logging
+import os
+import ssl
+import urllib.parse
+from pathlib import Path
+from typing import Any
+from typing import Literal
+from typing import TypedDict
+
+from aioquic.h3.connection import H3_ALPN
+from aioquic.tls import CipherSuite
+from cryptography import x509
+from OpenSSL import SSL
+
+from mitmproxy import certs
+from mitmproxy import connection
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import http
+from mitmproxy import tls
+from mitmproxy.net import tls as net_tls
+from mitmproxy.options import CONF_BASENAME
+from mitmproxy.proxy import context
+from mitmproxy.proxy.layers import modes
+from mitmproxy.proxy.layers import quic
+from mitmproxy.proxy.layers import tls as proxy_tls
+
+logger = logging.getLogger(__name__)
+
+# We manually need to specify this, otherwise OpenSSL may select a non-HTTP2 cipher by default.
+# https://ssl-config.mozilla.org/#config=old
+
+_DEFAULT_CIPHERS = (
+    "ECDHE-ECDSA-AES128-GCM-SHA256",
+    "ECDHE-RSA-AES128-GCM-SHA256",
+    "ECDHE-ECDSA-AES256-GCM-SHA384",
+    "ECDHE-RSA-AES256-GCM-SHA384",
+    "ECDHE-ECDSA-CHACHA20-POLY1305",
+    "ECDHE-RSA-CHACHA20-POLY1305",
+    "DHE-RSA-AES128-GCM-SHA256",
+    "DHE-RSA-AES256-GCM-SHA384",
+    "DHE-RSA-CHACHA20-POLY1305",
+    "ECDHE-ECDSA-AES128-SHA256",
+    "ECDHE-RSA-AES128-SHA256",
+    "ECDHE-ECDSA-AES128-SHA",
+    "ECDHE-RSA-AES128-SHA",
+    "ECDHE-ECDSA-AES256-SHA384",
+    "ECDHE-RSA-AES256-SHA384",
+    "ECDHE-ECDSA-AES256-SHA",
+    "ECDHE-RSA-AES256-SHA",
+    "DHE-RSA-AES128-SHA256",
+    "DHE-RSA-AES256-SHA256",
+    "AES128-GCM-SHA256",
+    "AES256-GCM-SHA384",
+    "AES128-SHA256",
+    "AES256-SHA256",
+    "AES128-SHA",
+    "AES256-SHA",
+    "DES-CBC3-SHA",
+)
+
+_DEFAULT_CIPHERS_WITH_SECLEVEL_0 = ("@SECLEVEL=0", *_DEFAULT_CIPHERS)
+
+
+def _default_ciphers(
+    min_tls_version: net_tls.Version,
+) -> tuple[str, ...]:
+    """
+    @SECLEVEL=0 is necessary for TLS 1.1 and below to work,
+    see https://github.com/pyca/cryptography/issues/9523
+    """
+    if min_tls_version in net_tls.INSECURE_TLS_MIN_VERSIONS:
+        return _DEFAULT_CIPHERS_WITH_SECLEVEL_0
+    else:
+        return _DEFAULT_CIPHERS
+
+
+# 2022/05: X509_CHECK_FLAG_NEVER_CHECK_SUBJECT is not available in LibreSSL, ignore gracefully as it's not critical.
+DEFAULT_HOSTFLAGS = (
+    SSL._lib.X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS  # type: ignore
+    | getattr(SSL._lib, "X509_CHECK_FLAG_NEVER_CHECK_SUBJECT", 0)  # type: ignore
+)
+
+
+class AppData(TypedDict):
+    client_alpn: bytes | None
+    server_alpn: bytes | None
+    http2: bool
+
+
+def alpn_select_callback(conn: SSL.Connection, options: list[bytes]) -> Any:
+    app_data: AppData = conn.get_app_data()
+    client_alpn = app_data["client_alpn"]
+    server_alpn = app_data["server_alpn"]
+    http2 = app_data["http2"]
+    if client_alpn is not None:
+        if client_alpn in options:
+            return client_alpn
+        else:
+            return SSL.NO_OVERLAPPING_PROTOCOLS
+    if server_alpn and server_alpn in options:
+        return server_alpn
+    if server_alpn == b"":
+        # We do have a server connection, but the remote server refused to negotiate a protocol:
+        # We need to mirror this on the client connection.
+        return SSL.NO_OVERLAPPING_PROTOCOLS
+    http_alpns = proxy_tls.HTTP_ALPNS if http2 else proxy_tls.HTTP1_ALPNS
+    # client sends in order of preference, so we are nice and respect that.
+    for alpn in options:
+        if alpn in http_alpns:
+            return alpn
+    else:
+        return SSL.NO_OVERLAPPING_PROTOCOLS
+
+
+class TlsConfig:
+    """
+    This addon supplies the proxy core with the desired OpenSSL connection objects to negotiate TLS.
+    """
+
+    certstore: certs.CertStore = None  # type: ignore
+
+    # TODO: We should support configuring TLS 1.3 cipher suites (https://github.com/mitmproxy/mitmproxy/issues/4260)
+    # TODO: We should re-use SSL.Context options here, if only for TLS session resumption.
+    #       This may require patches to pyOpenSSL, as some functionality is only exposed on contexts.
+    # TODO: This addon should manage the following options itself, which are current defined in mitmproxy/options.py:
+    #  - upstream_cert
+    #  - add_upstream_certs_to_client_chain
+    #  - key_size
+    #  - certs
+    #  - cert_passphrase
+    #  - ssl_verify_upstream_trusted_ca
+    #  - ssl_verify_upstream_trusted_confdir
+
+    def load(self, loader):
+        insecure_tls_min_versions = (
+            ", ".join(x.name for x in net_tls.INSECURE_TLS_MIN_VERSIONS[:-1])
+            + f" and {net_tls.INSECURE_TLS_MIN_VERSIONS[-1].name}"
+        )
+        loader.add_option(
+            name="tls_version_client_min",
+            typespec=str,
+            default=net_tls.DEFAULT_MIN_VERSION.name,
+            choices=[x.name for x in net_tls.Version],
+            help=f"Set the minimum TLS version for client connections. "
+            f"{insecure_tls_min_versions} are insecure.",
+        )
+        loader.add_option(
+            name="tls_version_client_max",
+            typespec=str,
+            default=net_tls.DEFAULT_MAX_VERSION.name,
+            choices=[x.name for x in net_tls.Version],
+            help=f"Set the maximum TLS version for client connections.",
+        )
+        loader.add_option(
+            name="tls_version_server_min",
+            typespec=str,
+            default=net_tls.DEFAULT_MIN_VERSION.name,
+            choices=[x.name for x in net_tls.Version],
+            help=f"Set the minimum TLS version for server connections. "
+            f"{insecure_tls_min_versions} are insecure.",
+        )
+        loader.add_option(
+            name="tls_version_server_max",
+            typespec=str,
+            default=net_tls.DEFAULT_MAX_VERSION.name,
+            choices=[x.name for x in net_tls.Version],
+            help=f"Set the maximum TLS version for server connections.",
+        )
+        loader.add_option(
+            name="tls_ecdh_curve_client",
+            typespec=str | None,
+            default=None,
+            help="Use a specific elliptic curve for ECDHE key exchange on client connections. "
+            'OpenSSL syntax, for example "prime256v1" (see `openssl ecparam -list_curves`).',
+        )
+        loader.add_option(
+            name="tls_ecdh_curve_server",
+            typespec=str | None,
+            default=None,
+            help="Use a specific elliptic curve for ECDHE key exchange on server connections. "
+            'OpenSSL syntax, for example "prime256v1" (see `openssl ecparam -list_curves`).',
+        )
+        loader.add_option(
+            name="request_client_cert",
+            typespec=bool,
+            default=False,
+            help=f"Requests a client certificate (TLS message 'CertificateRequest') to establish a mutual TLS connection between client and mitmproxy (combined with 'client_certs' option for mitmproxy and upstream).",
+        )
+        loader.add_option(
+            "ciphers_client",
+            str | None,
+            None,
+            "Set supported ciphers for client <-> mitmproxy connections using OpenSSL syntax.",
+        )
+        loader.add_option(
+            "ciphers_server",
+            str | None,
+            None,
+            "Set supported ciphers for mitmproxy <-> server connections using OpenSSL syntax.",
+        )
+
+    def tls_clienthello(self, tls_clienthello: tls.ClientHelloData):
+        conn_context = tls_clienthello.context
+        tls_clienthello.establish_server_tls_first = (
+            conn_context.server.tls and ctx.options.connection_strategy == "eager"
+        )
+
+    def tls_start_client(self, tls_start: tls.TlsData) -> None:
+        """Establish TLS or DTLS between client and proxy."""
+        if tls_start.ssl_conn is not None:
+            return  # a user addon has already provided the pyOpenSSL context.
+
+        assert isinstance(tls_start.conn, connection.Client)
+
+        client: connection.Client = tls_start.conn
+        server: connection.Server = tls_start.context.server
+
+        entry = self.get_cert(tls_start.context)
+
+        if not client.cipher_list and ctx.options.ciphers_client:
+            client.cipher_list = ctx.options.ciphers_client.split(":")
+        # don't assign to client.cipher_list, doesn't need to be stored.
+        cipher_list = client.cipher_list or _default_ciphers(
+            net_tls.Version[ctx.options.tls_version_client_min]
+        )
+
+        if ctx.options.add_upstream_certs_to_client_chain:  # pragma: no cover
+            # exempted from coverage until https://bugs.python.org/issue18233 is fixed.
+            extra_chain_certs = server.certificate_list
+        else:
+            extra_chain_certs = []
+
+        ssl_ctx = net_tls.create_client_proxy_context(
+            method=net_tls.Method.DTLS_SERVER_METHOD
+            if tls_start.is_dtls
+            else net_tls.Method.TLS_SERVER_METHOD,
+            min_version=net_tls.Version[ctx.options.tls_version_client_min],
+            max_version=net_tls.Version[ctx.options.tls_version_client_max],
+            cipher_list=tuple(cipher_list),
+            ecdh_curve=net_tls.get_curve(ctx.options.tls_ecdh_curve_client),
+            chain_file=entry.chain_file,
+            request_client_cert=ctx.options.request_client_cert,
+            alpn_select_callback=alpn_select_callback,
+            extra_chain_certs=tuple(extra_chain_certs),
+            dhparams=self.certstore.dhparams,
+        )
+        tls_start.ssl_conn = SSL.Connection(ssl_ctx)
+
+        tls_start.ssl_conn.use_certificate(entry.cert.to_cryptography())
+        tls_start.ssl_conn.use_privatekey(entry.privatekey)
+
+        # Force HTTP/1 for secure web proxies, we currently don't support CONNECT over HTTP/2.
+        # There is a proof-of-concept branch at https://github.com/mhils/mitmproxy/tree/http2-proxy,
+        # but the complexity outweighs the benefits for now.
+        if len(tls_start.context.layers) == 2 and isinstance(
+            tls_start.context.layers[0], modes.HttpProxy
+        ):
+            client_alpn: bytes | None = b"http/1.1"
+        else:
+            client_alpn = client.alpn
+
+        tls_start.ssl_conn.set_app_data(
+            AppData(
+                client_alpn=client_alpn,
+                server_alpn=server.alpn,
+                http2=ctx.options.http2,
+            )
+        )
+        tls_start.ssl_conn.set_accept_state()
+
+    def tls_start_server(self, tls_start: tls.TlsData) -> None:
+        """Establish TLS or DTLS between proxy and server."""
+        if tls_start.ssl_conn is not None:
+            return  # a user addon has already provided the pyOpenSSL context.
+
+        assert isinstance(tls_start.conn, connection.Server)
+
+        client: connection.Client = tls_start.context.client
+        # tls_start.conn may be different from tls_start.context.server, e.g. an upstream HTTPS proxy.
+        server: connection.Server = tls_start.conn
+        assert server.address
+
+        if ctx.options.ssl_insecure:
+            verify = net_tls.Verify.VERIFY_NONE
+        else:
+            verify = net_tls.Verify.VERIFY_PEER
+
+        if server.sni is None:
+            server.sni = client.sni or server.address[0]
+
+        if not server.alpn_offers:
+            if client.alpn_offers:
+                if ctx.options.http2:
+                    # We would perfectly support HTTP/1 -> HTTP/2, but we want to keep things on the same protocol
+                    # version. There are some edge cases where we want to mirror the regular server's behavior
+                    # accurately, for example header capitalization.
+                    server.alpn_offers = tuple(client.alpn_offers)
+                else:
+                    server.alpn_offers = tuple(
+                        x for x in client.alpn_offers if x != b"h2"
+                    )
+            else:
+                # We either have no client TLS or a client without ALPN.
+                # - If the client does use TLS but did not send an ALPN extension, we want to mirror that upstream.
+                # - If the client does not use TLS, there's no clear-cut answer. As a pragmatic approach, we also do
+                #   not send any ALPN extension in this case, which defaults to whatever protocol we are speaking
+                #   or falls back to HTTP.
+                server.alpn_offers = []
+
+        if not server.cipher_list and ctx.options.ciphers_server:
+            server.cipher_list = ctx.options.ciphers_server.split(":")
+        # don't assign to client.cipher_list, doesn't need to be stored.
+        cipher_list = server.cipher_list or _default_ciphers(
+            net_tls.Version[ctx.options.tls_version_server_min]
+        )
+
+        client_cert: str | None = None
+        if ctx.options.client_certs:
+            client_certs = os.path.expanduser(ctx.options.client_certs)
+            if os.path.isfile(client_certs):
+                client_cert = client_certs
+            else:
+                server_name: str = server.sni or server.address[0]
+                p = os.path.join(client_certs, f"{server_name}.pem")
+                if os.path.isfile(p):
+                    client_cert = p
+
+        ssl_ctx = net_tls.create_proxy_server_context(
+            method=net_tls.Method.DTLS_CLIENT_METHOD
+            if tls_start.is_dtls
+            else net_tls.Method.TLS_CLIENT_METHOD,
+            min_version=net_tls.Version[ctx.options.tls_version_server_min],
+            max_version=net_tls.Version[ctx.options.tls_version_server_max],
+            cipher_list=tuple(cipher_list),
+            ecdh_curve=net_tls.get_curve(ctx.options.tls_ecdh_curve_server),
+            verify=verify,
+            ca_path=ctx.options.ssl_verify_upstream_trusted_confdir,
+            ca_pemfile=ctx.options.ssl_verify_upstream_trusted_ca,
+            client_cert=client_cert,
+            legacy_server_connect=ctx.options.ssl_insecure,
+        )
+
+        tls_start.ssl_conn = SSL.Connection(ssl_ctx)
+        if server.sni:
+            # We need to set SNI + enable hostname verification.
+            assert isinstance(server.sni, str)
+            # Manually enable hostname verification on the context object.
+            # https://wiki.openssl.org/index.php/Hostname_validation
+            param = SSL._lib.SSL_get0_param(tls_start.ssl_conn._ssl)  # type: ignore
+            # Matching on the CN is disabled in both Chrome and Firefox, so we disable it, too.
+            # https://www.chromestatus.com/feature/4981025180483584
+
+            SSL._lib.X509_VERIFY_PARAM_set_hostflags(param, DEFAULT_HOSTFLAGS)  # type: ignore
+
+            try:
+                ip: bytes = ipaddress.ip_address(server.sni).packed
+            except ValueError:
+                host_name = server.sni.encode("idna")
+                tls_start.ssl_conn.set_tlsext_host_name(host_name)
+                ok = SSL._lib.X509_VERIFY_PARAM_set1_host(  # type: ignore
+                    param, host_name, len(host_name)
+                )  # type: ignore
+                SSL._openssl_assert(ok == 1)  # type: ignore
+            else:
+                # RFC 6066: Literal IPv4 and IPv6 addresses are not permitted in "HostName",
+                # so we don't call set_tlsext_host_name.
+                ok = SSL._lib.X509_VERIFY_PARAM_set1_ip(param, ip, len(ip))  # type: ignore
+                SSL._openssl_assert(ok == 1)  # type: ignore
+        elif verify is not net_tls.Verify.VERIFY_NONE:
+            raise ValueError("Cannot validate certificate hostname without SNI")
+
+        if server.alpn_offers:
+            tls_start.ssl_conn.set_alpn_protos(list(server.alpn_offers))
+
+        tls_start.ssl_conn.set_connect_state()
+
+    def quic_start_client(self, tls_start: quic.QuicTlsData) -> None:
+        """Establish QUIC between client and proxy."""
+        if tls_start.settings is not None:
+            return  # a user addon has already provided the settings.
+        tls_start.settings = quic.QuicTlsSettings()
+
+        # keep the following part in sync with `tls_start_client`
+        assert isinstance(tls_start.conn, connection.Client)
+
+        client: connection.Client = tls_start.conn
+        server: connection.Server = tls_start.context.server
+
+        entry = self.get_cert(tls_start.context)
+
+        if not client.cipher_list and ctx.options.ciphers_client:
+            client.cipher_list = ctx.options.ciphers_client.split(":")
+
+        if ctx.options.add_upstream_certs_to_client_chain:  # pragma: no cover
+            extra_chain_certs = server.certificate_list
+        else:
+            extra_chain_certs = []
+
+        # set context parameters
+        if client.cipher_list:
+            tls_start.settings.cipher_suites = [
+                CipherSuite[cipher] for cipher in client.cipher_list
+            ]
+        # if we don't have upstream ALPN, we allow all offered by the client
+        tls_start.settings.alpn_protocols = [
+            alpn.decode("ascii")
+            for alpn in [alpn for alpn in (client.alpn, server.alpn) if alpn]
+            or client.alpn_offers
+        ]
+
+        # set the certificates
+        tls_start.settings.certificate = entry.cert._cert
+        tls_start.settings.certificate_private_key = entry.privatekey
+        tls_start.settings.certificate_chain = [
+            cert._cert for cert in (*entry.chain_certs, *extra_chain_certs)
+        ]
+
+    def quic_start_server(self, tls_start: quic.QuicTlsData) -> None:
+        """Establish QUIC between proxy and server."""
+        if tls_start.settings is not None:
+            return  # a user addon has already provided the settings.
+        tls_start.settings = quic.QuicTlsSettings()
+
+        # keep the following part in sync with `tls_start_server`
+        assert isinstance(tls_start.conn, connection.Server)
+
+        client: connection.Client = tls_start.context.client
+        server: connection.Server = tls_start.conn
+        assert server.address
+
+        if ctx.options.ssl_insecure:
+            tls_start.settings.verify_mode = ssl.CERT_NONE
+        else:
+            tls_start.settings.verify_mode = ssl.CERT_REQUIRED
+
+        if server.sni is None:
+            server.sni = client.sni or server.address[0]
+
+        if not server.alpn_offers:
+            if client.alpn_offers:
+                server.alpn_offers = tuple(client.alpn_offers)
+            else:
+                # aioquic fails if no ALPN is offered, so use H3
+                server.alpn_offers = tuple(alpn.encode("ascii") for alpn in H3_ALPN)
+
+        if not server.cipher_list and ctx.options.ciphers_server:
+            server.cipher_list = ctx.options.ciphers_server.split(":")
+
+        # set context parameters
+        if server.cipher_list:
+            tls_start.settings.cipher_suites = [
+                CipherSuite[cipher] for cipher in server.cipher_list
+            ]
+        if server.alpn_offers:
+            tls_start.settings.alpn_protocols = [
+                alpn.decode("ascii") for alpn in server.alpn_offers
+            ]
+
+        # set the certificates
+        # NOTE client certificates are not supported
+        tls_start.settings.ca_path = ctx.options.ssl_verify_upstream_trusted_confdir
+        tls_start.settings.ca_file = ctx.options.ssl_verify_upstream_trusted_ca
+
+    def running(self):
+        # FIXME: We have a weird bug where the contract for configure is not followed and it is never called with
+        # confdir or command_history as updated.
+        self.configure("confdir")  # pragma: no cover
+
+    def configure(self, updated):
+        if (
+            "certs" in updated
+            or "confdir" in updated
+            or "key_size" in updated
+            or "cert_passphrase" in updated
+        ):
+            certstore_path = os.path.expanduser(ctx.options.confdir)
+            self.certstore = certs.CertStore.from_store(
+                path=certstore_path,
+                basename=CONF_BASENAME,
+                key_size=ctx.options.key_size,
+                passphrase=ctx.options.cert_passphrase.encode("utf8")
+                if ctx.options.cert_passphrase
+                else None,
+            )
+            if self.certstore.default_ca.has_expired():
+                logger.warning(
+                    "The mitmproxy certificate authority has expired!\n"
+                    "Please delete all CA-related files in your ~/.mitmproxy folder.\n"
+                    "The CA will be regenerated automatically after restarting mitmproxy.\n"
+                    "See https://docs.mitmproxy.org/stable/concepts-certificates/ for additional help.",
+                )
+
+            for certspec in ctx.options.certs:
+                parts = certspec.split("=", 1)
+                if len(parts) == 1:
+                    parts = ["*", parts[0]]
+
+                cert = Path(parts[1]).expanduser()
+                if not cert.exists():
+                    raise exceptions.OptionsError(
+                        f"Certificate file does not exist: {cert}"
+                    )
+                try:
+                    self.certstore.add_cert_file(
+                        parts[0],
+                        cert,
+                        passphrase=ctx.options.cert_passphrase.encode("utf8")
+                        if ctx.options.cert_passphrase
+                        else None,
+                    )
+                except ValueError as e:
+                    raise exceptions.OptionsError(
+                        f"Invalid certificate format for {cert}: {e}"
+                    ) from e
+
+        if "tls_ecdh_curve_client" in updated or "tls_ecdh_curve_server" in updated:
+            for ecdh_curve in [
+                ctx.options.tls_ecdh_curve_client,
+                ctx.options.tls_ecdh_curve_server,
+            ]:
+                if ecdh_curve is not None and ecdh_curve not in net_tls.EC_CURVES:
+                    raise exceptions.OptionsError(
+                        f"Invalid ECDH curve: {ecdh_curve!r}. Valid curves are: {', '.join(net_tls.EC_CURVES)}"
+                    )
+
+        if "tls_version_client_min" in updated:
+            self._warn_unsupported_version("tls_version_client_min", True)
+        if "tls_version_client_max" in updated:
+            self._warn_unsupported_version("tls_version_client_max", False)
+        if "tls_version_server_min" in updated:
+            self._warn_unsupported_version("tls_version_server_min", True)
+        if "tls_version_server_max" in updated:
+            self._warn_unsupported_version("tls_version_server_max", False)
+        if "tls_version_client_min" in updated or "ciphers_client" in updated:
+            self._warn_seclevel_missing("client")
+        if "tls_version_server_min" in updated or "ciphers_server" in updated:
+            self._warn_seclevel_missing("server")
+
+    def _warn_unsupported_version(self, attribute: str, warn_unbound: bool):
+        val = net_tls.Version[getattr(ctx.options, attribute)]
+        supported_versions = [
+            v for v in net_tls.Version if net_tls.is_supported_version(v)
+        ]
+        supported_versions_str = ", ".join(v.name for v in supported_versions)
+
+        if val is net_tls.Version.UNBOUNDED:
+            if warn_unbound:
+                logger.info(
+                    f"{attribute} has been set to {val.name}. Note that your "
+                    f"OpenSSL build only supports the following TLS versions: {supported_versions_str}"
+                )
+        elif val not in supported_versions:
+            logger.warning(
+                f"{attribute} has been set to {val.name}, which is not supported by the current OpenSSL build. "
+                f"The current build only supports the following versions: {supported_versions_str}"
+            )
+
+    def _warn_seclevel_missing(self, side: Literal["client", "server"]) -> None:
+        """
+        OpenSSL cipher spec need to specify @SECLEVEL for old TLS versions to work,
+        see https://github.com/pyca/cryptography/issues/9523.
+        """
+        if side == "client":
+            custom_ciphers = ctx.options.ciphers_client
+            min_tls_version = ctx.options.tls_version_client_min
+        else:
+            custom_ciphers = ctx.options.ciphers_server
+            min_tls_version = ctx.options.tls_version_server_min
+
+        if (
+            custom_ciphers
+            and net_tls.Version[min_tls_version] in net_tls.INSECURE_TLS_MIN_VERSIONS
+            and "@SECLEVEL=0" not in custom_ciphers
+        ):
+            logger.warning(
+                f'With tls_version_{side}_min set to {min_tls_version}, ciphers_{side} must include "@SECLEVEL=0" '
+                f"for insecure TLS versions to work."
+            )
+
+    def crl_path(self) -> str:
+        return f"/mitmproxy-{self.certstore.default_ca.serial}.crl"
+
+    def get_cert(self, conn_context: context.Context) -> certs.CertStoreEntry:
+        """
+        This function determines the Common Name (CN), Subject Alternative Names (SANs) and Organization Name
+        our certificate should have and then fetches a matching cert from the certstore.
+        """
+        altnames: list[x509.GeneralName] = []
+        organization: str | None = None
+        crl_distribution_point: str | None = None
+
+        # Use upstream certificate if available.
+        if ctx.options.upstream_cert and conn_context.server.certificate_list:
+            upstream_cert: certs.Cert = conn_context.server.certificate_list[0]
+            if upstream_cert.cn:
+                altnames.append(_ip_or_dns_name(upstream_cert.cn))
+            altnames.extend(upstream_cert.altnames)
+            if upstream_cert.organization:
+                organization = upstream_cert.organization
+
+            # Replace original URL path with the CA cert serial number, which acts as a magic token
+            if crls := upstream_cert.crl_distribution_points:
+                try:
+                    scheme, netloc, *_ = urllib.parse.urlsplit(crls[0])
+                except ValueError:
+                    logger.info(f"Failed to parse CRL URL: {crls[0]!r}")
+                else:
+                    # noinspection PyTypeChecker
+                    crl_distribution_point = urllib.parse.urlunsplit(
+                        (scheme, netloc, self.crl_path(), None, None)
+                    )
+
+        # Add SNI or our local IP address.
+        if conn_context.client.sni:
+            altnames.append(_ip_or_dns_name(conn_context.client.sni))
+        else:
+            altnames.append(_ip_or_dns_name(conn_context.client.sockname[0]))
+
+        # If we already know of a server address, include that in the SANs as well.
+        if conn_context.server.address:
+            altnames.append(_ip_or_dns_name(conn_context.server.address[0]))
+
+        # only keep first occurrence of each hostname
+        altnames = list(dict.fromkeys(altnames))
+
+        # RFC 2818: If a subjectAltName extension of type dNSName is present, that MUST be used as the identity.
+        # In other words, the Common Name is irrelevant then.
+        cn = next((str(x.value) for x in altnames), None)
+        return self.certstore.get_cert(
+            cn, altnames, organization, crl_distribution_point
+        )
+
+    def request(self, flow: http.HTTPFlow):
+        if not flow.live or flow.error or flow.response:
+            return
+        # Check if a request has a magic CRL token at the end
+        if flow.request.path.endswith(self.crl_path()):
+            flow.response = http.Response.make(
+                200,
+                self.certstore.default_crl,
+                {"Content-Type": "application/pkix-crl"},
+            )
+
+
+def _ip_or_dns_name(val: str) -> x509.GeneralName:
+    """Convert a string into either an x509.IPAddress or x509.DNSName object."""
+    try:
+        ip = ipaddress.ip_address(val)
+    except ValueError:
+        return x509.DNSName(val.encode("idna").decode())
+    else:
+        return x509.IPAddress(ip)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/update_alt_svc.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/update_alt_svc.py
new file mode 100644
index 0000000000000000000000000000000000000000..fa514e28b199570400b4ededf696482f0af1a251
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/update_alt_svc.py
@@ -0,0 +1,33 @@
+import re
+
+from mitmproxy import ctx
+from mitmproxy.http import HTTPFlow
+from mitmproxy.proxy import mode_specs
+
+ALT_SVC = "alt-svc"
+HOST_PATTERN = r"([a-zA-Z0-9.-]*:\d{1,5})"
+
+
+def update_alt_svc_header(header: str, port: int) -> str:
+    return re.sub(HOST_PATTERN, f":{port}", header)
+
+
+class UpdateAltSvc:
+    def load(self, loader):
+        loader.add_option(
+            "keep_alt_svc_header",
+            bool,
+            False,
+            "Reverse Proxy: Keep Alt-Svc headers as-is, even if they do not point to mitmproxy. Enabling this option may cause clients to bypass the proxy.",
+        )
+
+    def responseheaders(self, flow: HTTPFlow):
+        assert flow.response
+        if (
+            not ctx.options.keep_alt_svc_header
+            and isinstance(flow.client_conn.proxy_mode, mode_specs.ReverseMode)
+            and ALT_SVC in flow.response.headers
+        ):
+            _, listen_port, *_ = flow.client_conn.sockname
+            headers = flow.response.headers
+            headers[ALT_SVC] = update_alt_svc_header(headers[ALT_SVC], listen_port)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/upstream_auth.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/upstream_auth.py
new file mode 100644
index 0000000000000000000000000000000000000000..655ca7d7526d6d9ec4d1851893b530b9523e19d8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/upstream_auth.py
@@ -0,0 +1,62 @@
+import base64
+import re
+from typing import Optional
+
+from mitmproxy import ctx
+from mitmproxy import exceptions
+from mitmproxy import http
+from mitmproxy.proxy import mode_specs
+from mitmproxy.utils import strutils
+
+
+def parse_upstream_auth(auth: str) -> bytes:
+    pattern = re.compile(".+:")
+    if pattern.search(auth) is None:
+        raise exceptions.OptionsError("Invalid upstream auth specification: %s" % auth)
+    return b"Basic" + b" " + base64.b64encode(strutils.always_bytes(auth))
+
+
+class UpstreamAuth:
+    """
+    This addon handles authentication to systems upstream from us for the
+    upstream proxy and reverse proxy mode. There are 3 cases:
+
+    - Upstream proxy CONNECT requests should have authentication added, and
+      subsequent already connected requests should not.
+    - Upstream proxy regular requests
+    - Reverse proxy regular requests (CONNECT is invalid in this mode)
+    """
+
+    auth: bytes | None = None
+
+    def load(self, loader):
+        loader.add_option(
+            "upstream_auth",
+            Optional[str],
+            None,
+            """
+            Add HTTP Basic authentication to upstream proxy and reverse proxy
+            requests. Format: username:password.
+            """,
+        )
+
+    def configure(self, updated):
+        if "upstream_auth" in updated:
+            if ctx.options.upstream_auth is None:
+                self.auth = None
+            else:
+                self.auth = parse_upstream_auth(ctx.options.upstream_auth)
+
+    def http_connect_upstream(self, f: http.HTTPFlow):
+        if self.auth:
+            f.request.headers["Proxy-Authorization"] = self.auth
+
+    def requestheaders(self, f: http.HTTPFlow):
+        if self.auth:
+            if (
+                isinstance(f.client_conn.proxy_mode, mode_specs.UpstreamMode)
+                and f.request.scheme == "http"
+            ):
+                f.request.headers["Proxy-Authorization"] = self.auth
+            elif isinstance(f.client_conn.proxy_mode, mode_specs.ReverseMode):
+                f.request.headers["Authorization"] = self.auth
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/addons/view.py b/python/user_packages/Python313/site-packages/mitmproxy/addons/view.py
new file mode 100644
index 0000000000000000000000000000000000000000..b9c323d9b750606afb6cd22f392db49fc3cbc5ce
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/addons/view.py
@@ -0,0 +1,749 @@
+"""
+The View:
+
+- Keeps track of a store of flows
+- Maintains a filtered, ordered view onto that list of flows
+- Exposes a number of signals so the view can be monitored
+- Tracks focus within the view
+- Exposes a settings store for flows that automatically expires if the flow is
+  removed from the store.
+"""
+
+import collections
+import logging
+import re
+from collections.abc import Iterator
+from collections.abc import MutableMapping
+from collections.abc import Sequence
+from typing import Any
+from typing import Optional
+
+import sortedcontainers
+
+import mitmproxy.flow
+from mitmproxy import command
+from mitmproxy import connection
+from mitmproxy import ctx
+from mitmproxy import dns
+from mitmproxy import exceptions
+from mitmproxy import flowfilter
+from mitmproxy import hooks
+from mitmproxy import http
+from mitmproxy import io
+from mitmproxy import tcp
+from mitmproxy import udp
+from mitmproxy.log import ALERT
+from mitmproxy.utils import human
+from mitmproxy.utils import signals
+
+# The underlying sorted list implementation expects the sort key to be stable
+# for the lifetime of the object. However, if we sort by size, for instance,
+# the sort order changes as the flow progresses through its lifecycle. We
+# address this through two means:
+#
+# - Let order keys cache the sort value by flow ID.
+#
+# - Add a facility to refresh items in the list by removing and re-adding them
+# when they are updated.
+
+
+class _OrderKey:
+    def __init__(self, view):
+        self.view = view
+
+    def generate(self, f: mitmproxy.flow.Flow) -> Any:  # pragma: no cover
+        pass
+
+    def refresh(self, f):
+        k = self._key()
+        old = self.view.settings[f][k]
+        new = self.generate(f)
+        if old != new:
+            self.view._view.remove(f)
+            self.view.settings[f][k] = new
+            self.view._view.add(f)
+            self.view.sig_view_refresh.send()
+
+    def _key(self):
+        return "_order_%s" % id(self)
+
+    def __call__(self, f):
+        if f.id in self.view._store:
+            k = self._key()
+            s = self.view.settings[f]
+            if k in s:
+                return s[k]
+            val = self.generate(f)
+            s[k] = val
+            return val
+        else:
+            return self.generate(f)
+
+
+class OrderRequestStart(_OrderKey):
+    def generate(self, f: mitmproxy.flow.Flow) -> float:
+        return f.timestamp_created
+
+
+class OrderRequestMethod(_OrderKey):
+    def generate(self, f: mitmproxy.flow.Flow) -> str:
+        if isinstance(f, http.HTTPFlow):
+            return f.request.method
+        elif isinstance(f, (tcp.TCPFlow, udp.UDPFlow)):
+            return f.type.upper()
+        elif isinstance(f, dns.DNSFlow):
+            return dns.op_codes.to_str(f.request.op_code)
+        else:
+            raise NotImplementedError()
+
+
+class OrderRequestURL(_OrderKey):
+    def generate(self, f: mitmproxy.flow.Flow) -> str:
+        if isinstance(f, http.HTTPFlow):
+            return f.request.url
+        elif isinstance(f, (tcp.TCPFlow, udp.UDPFlow)):
+            return human.format_address(f.server_conn.address)
+        elif isinstance(f, dns.DNSFlow):
+            return f.request.questions[0].name if f.request.questions else ""
+        else:
+            raise NotImplementedError()
+
+
+class OrderKeySize(_OrderKey):
+    def generate(self, f: mitmproxy.flow.Flow) -> int:
+        if isinstance(f, http.HTTPFlow):
+            size = 0
+            if f.request.raw_content:
+                size += len(f.request.raw_content)
+            if f.response and f.response.raw_content:
+                size += len(f.response.raw_content)
+            return size
+        elif isinstance(f, (tcp.TCPFlow, udp.UDPFlow)):
+            size = 0
+            for message in f.messages:
+                size += len(message.content)
+            return size
+        elif isinstance(f, dns.DNSFlow):
+            return f.response.size if f.response else 0
+        else:
+            raise NotImplementedError()
+
+
+orders = [
+    ("t", "time"),
+    ("m", "method"),
+    ("u", "url"),
+    ("z", "size"),
+]
+
+
+def _signal_with_flow(flow: mitmproxy.flow.Flow) -> None: ...
+
+
+def _sig_view_remove(flow: mitmproxy.flow.Flow, index: int) -> None: ...
+
+
+class View(collections.abc.Sequence):
+    def __init__(self) -> None:
+        super().__init__()
+        self._store: collections.OrderedDict[str, mitmproxy.flow.Flow] = (
+            collections.OrderedDict()
+        )
+        self.filter = flowfilter.match_all
+        # Should we show only marked flows?
+        self.show_marked = False
+
+        self.default_order = OrderRequestStart(self)
+        self.orders = dict(
+            time=OrderRequestStart(self),
+            method=OrderRequestMethod(self),
+            url=OrderRequestURL(self),
+            size=OrderKeySize(self),
+        )
+        self.order_key: _OrderKey = self.default_order
+        self.order_reversed = False
+        self.focus_follow = False
+
+        self._view = sortedcontainers.SortedListWithKey(key=self.order_key)
+
+        # The sig_view* signals broadcast events that affect the view. That is,
+        # an update to a flow in the store but not in the view does not trigger
+        # a signal. All signals are called after the view has been updated.
+        self.sig_view_update = signals.SyncSignal(_signal_with_flow)
+        self.sig_view_add = signals.SyncSignal(_signal_with_flow)
+        self.sig_view_remove = signals.SyncSignal(_sig_view_remove)
+        # Signals that the view should be refreshed completely
+        self.sig_view_refresh = signals.SyncSignal(lambda: None)
+
+        # The sig_store* signals broadcast events that affect the underlying
+        # store. If a flow is removed from just the view, sig_view_remove is
+        # triggered. If it is removed from the store while it is also in the
+        # view, both sig_store_remove and sig_view_remove are triggered.
+        self.sig_store_remove = signals.SyncSignal(_signal_with_flow)
+        # Signals that the store should be refreshed completely
+        self.sig_store_refresh = signals.SyncSignal(lambda: None)
+
+        self.focus = Focus(self)
+        self.settings = Settings(self)
+
+    def load(self, loader):
+        loader.add_option(
+            "view_filter", Optional[str], None, "Limit the view to matching flows."
+        )
+        loader.add_option(
+            "view_order",
+            str,
+            "time",
+            "Flow sort order.",
+            choices=list(map(lambda c: c[1], orders)),
+        )
+        loader.add_option(
+            "view_order_reversed", bool, False, "Reverse the sorting order."
+        )
+        loader.add_option(
+            "console_focus_follow", bool, False, "Focus follows new flows."
+        )
+
+    def store_count(self):
+        return len(self._store)
+
+    def _rev(self, idx: int) -> int:
+        """
+        Reverses an index, if needed
+        """
+        if self.order_reversed:
+            if idx < 0:
+                idx = -idx - 1
+            else:
+                idx = len(self._view) - idx - 1
+                if idx < 0:
+                    raise IndexError
+        return idx
+
+    def __len__(self):
+        return len(self._view)
+
+    def __getitem__(self, offset) -> Any:
+        return self._view[self._rev(offset)]
+
+    # Reflect some methods to the efficient underlying implementation
+
+    def _bisect(self, f: mitmproxy.flow.Flow) -> int:
+        v = self._view.bisect_right(f)
+        return self._rev(v - 1) + 1
+
+    def index(
+        self, f: mitmproxy.flow.Flow, start: int = 0, stop: int | None = None
+    ) -> int:
+        return self._rev(self._view.index(f, start, stop))
+
+    def __contains__(self, f: Any) -> bool:
+        return self._view.__contains__(f)
+
+    def _order_key_name(self):
+        return "_order_%s" % id(self.order_key)
+
+    def _base_add(self, f):
+        self.settings[f][self._order_key_name()] = self.order_key(f)
+        self._view.add(f)
+
+    def _refilter(self):
+        self._view.clear()
+        for i in self._store.values():
+            if self.show_marked and not i.marked:
+                continue
+            if self.filter(i):
+                self._base_add(i)
+        self.sig_view_refresh.send()
+
+    """ View API """
+
+    # Focus
+    @command.command("view.focus.go")
+    def go(self, offset: int) -> None:
+        """
+        Go to a specified offset. Positive offests are from the beginning of
+        the view, negative from the end of the view, so that 0 is the first
+        flow, -1 is the last flow.
+        """
+        if len(self) == 0:
+            return
+        if offset < 0:
+            offset = len(self) + offset
+        if offset < 0:
+            offset = 0
+        if offset > len(self) - 1:
+            offset = len(self) - 1
+        self.focus.flow = self[offset]
+
+    @command.command("view.focus.next")
+    def focus_next(self) -> None:
+        """
+        Set focus to the next flow.
+        """
+        if self.focus.index is not None:
+            idx = self.focus.index + 1
+            if self.inbounds(idx):
+                self.focus.flow = self[idx]
+        else:
+            pass
+
+    @command.command("view.focus.prev")
+    def focus_prev(self) -> None:
+        """
+        Set focus to the previous flow.
+        """
+        if self.focus.index is not None:
+            idx = self.focus.index - 1
+            if self.inbounds(idx):
+                self.focus.flow = self[idx]
+        else:
+            pass
+
+    # Order
+    @command.command("view.order.options")
+    def order_options(self) -> Sequence[str]:
+        """
+        Choices supported by the view_order option.
+        """
+        return list(sorted(self.orders.keys()))
+
+    @command.command("view.order.reverse")
+    def set_reversed(self, boolean: bool) -> None:
+        self.order_reversed = boolean
+        self.sig_view_refresh.send()
+
+    @command.command("view.order.set")
+    def set_order(self, order_key: str) -> None:
+        """
+        Sets the current view order.
+        """
+        if order_key not in self.orders:
+            raise exceptions.CommandError("Unknown flow order: %s" % order_key)
+        key = self.orders[order_key]
+        self.order_key = key
+        newview = sortedcontainers.SortedListWithKey(key=key)
+        newview.update(self._view)
+        self._view = newview
+
+    @command.command("view.order")
+    def get_order(self) -> str:
+        """
+        Returns the current view order.
+        """
+        order = ""
+        for k in self.orders.keys():
+            if self.order_key == self.orders[k]:
+                order = k
+        return order
+
+    # Filter
+    @command.command("view.filter.set")
+    def set_filter_cmd(self, filter_expr: str) -> None:
+        """
+        Sets the current view filter.
+        """
+        filt = None
+        if filter_expr:
+            try:
+                filt = flowfilter.parse(filter_expr)
+            except ValueError as e:
+                raise exceptions.CommandError(str(e)) from e
+        self.set_filter(filt)
+
+    def set_filter(self, flt: flowfilter.TFilter | None):
+        self.filter = flt or flowfilter.match_all
+        self._refilter()
+
+    # View Updates
+    @command.command("view.clear")
+    def clear(self) -> None:
+        """
+        Clears both the store and view.
+        """
+        self._store.clear()
+        self._view.clear()
+        self.sig_view_refresh.send()
+        self.sig_store_refresh.send()
+
+    @command.command("view.clear_unmarked")
+    def clear_not_marked(self) -> None:
+        """
+        Clears only the unmarked flows.
+        """
+        for flow in self._store.copy().values():
+            if not flow.marked:
+                self._store.pop(flow.id)
+
+        self._refilter()
+        self.sig_store_refresh.send()
+
+    # View Settings
+    @command.command("view.settings.getval")
+    def getvalue(self, flow: mitmproxy.flow.Flow, key: str, default: str) -> str:
+        """
+        Get a value from the settings store for the specified flow.
+        """
+        return self.settings[flow].get(key, default)
+
+    @command.command("view.settings.setval.toggle")
+    def setvalue_toggle(self, flows: Sequence[mitmproxy.flow.Flow], key: str) -> None:
+        """
+        Toggle a boolean value in the settings store, setting the value to
+        the string "true" or "false".
+        """
+        updated = []
+        for f in flows:
+            current = self.settings[f].get(key, "false")
+            self.settings[f][key] = "false" if current == "true" else "true"
+            updated.append(f)
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+
+    @command.command("view.settings.setval")
+    def setvalue(
+        self, flows: Sequence[mitmproxy.flow.Flow], key: str, value: str
+    ) -> None:
+        """
+        Set a value in the settings store for the specified flows.
+        """
+        updated = []
+        for f in flows:
+            self.settings[f][key] = value
+            updated.append(f)
+        ctx.master.addons.trigger(hooks.UpdateHook(updated))
+
+    # Flows
+    @command.command("view.flows.duplicate")
+    def duplicate(self, flows: Sequence[mitmproxy.flow.Flow]) -> None:
+        """
+        Duplicates the specified flows, and sets the focus to the first
+        duplicate.
+        """
+        dups = [f.copy() for f in flows]
+        if dups:
+            self.add(dups)
+            self.focus.flow = dups[0]
+            logging.log(ALERT, "Duplicated %s flows" % len(dups))
+
+    @command.command("view.flows.remove")
+    def remove(self, flows: Sequence[mitmproxy.flow.Flow]) -> None:
+        """
+        Removes the flow from the underlying store and the view.
+        """
+        for f in flows:
+            if f.id in self._store:
+                if f.killable:
+                    f.kill()
+                if f in self._view:
+                    # We manually pass the index here because multiple flows may have the same
+                    # sorting key, and we cannot reconstruct the index from that.
+                    idx = self._view.index(f)
+                    self._view.remove(f)
+                    self.sig_view_remove.send(flow=f, index=idx)
+                del self._store[f.id]
+                self.sig_store_remove.send(flow=f)
+        if len(flows) > 1:
+            logging.log(ALERT, "Removed %s flows" % len(flows))
+
+    @command.command("view.flows.resolve")
+    def resolve(self, flow_spec: str) -> Sequence[mitmproxy.flow.Flow]:
+        """
+        Resolve a flow list specification to an actual list of flows.
+        """
+        if flow_spec == "@all":
+            return [i for i in self._store.values()]
+        if flow_spec == "@focus":
+            return [self.focus.flow] if self.focus.flow else []
+        elif flow_spec == "@shown":
+            return [i for i in self]
+        elif flow_spec == "@hidden":
+            return [i for i in self._store.values() if i not in self._view]
+        elif flow_spec == "@marked":
+            return [i for i in self._store.values() if i.marked]
+        elif flow_spec == "@unmarked":
+            return [i for i in self._store.values() if not i.marked]
+        elif re.match(r"@[0-9a-f\-,]{36,}", flow_spec):
+            ids = flow_spec[1:].split(",")
+            return [i for i in self._store.values() if i.id in ids]
+        else:
+            try:
+                filt = flowfilter.parse(flow_spec)
+            except ValueError as e:
+                raise exceptions.CommandError(str(e)) from e
+            return [i for i in self._store.values() if filt(i)]
+
+    @command.command("view.flows.create")
+    def create(self, method: str, url: str) -> None:
+        try:
+            req = http.Request.make(method.upper(), url)
+        except ValueError as e:
+            raise exceptions.CommandError("Invalid URL: %s" % e)
+
+        c = connection.Client(
+            peername=("", 0),
+            sockname=("", 0),
+            timestamp_start=req.timestamp_start - 0.0001,
+        )
+        s = connection.Server(address=(req.host, req.port))
+
+        f = http.HTTPFlow(c, s)
+        f.request = req
+        f.request.headers["Host"] = req.host
+        self.add([f])
+
+    @command.command("view.flows.load")
+    def load_file(self, path: mitmproxy.types.Path) -> None:
+        """
+        Load flows into the view, without processing them with addons.
+        """
+        try:
+            with open(path, "rb") as f:
+                for i in io.FlowReader(f).stream():
+                    # Do this to get a new ID, so we can load the same file N times and
+                    # get new flows each time. It would be more efficient to just have a
+                    # .newid() method or something.
+                    self.add([i.copy()])
+        except OSError as e:
+            logging.error(e.strerror)
+        except exceptions.FlowReadException as e:
+            logging.error(str(e))
+
+    def add(self, flows: Sequence[mitmproxy.flow.Flow]) -> None:
+        """
+        Adds a flow to the state. If the flow already exists, it is
+        ignored.
+        """
+        for f in flows:
+            if f.id not in self._store:
+                self._store[f.id] = f
+                if self.filter(f):
+                    self._base_add(f)
+                    if self.focus_follow:
+                        self.focus.flow = f
+                    self.sig_view_add.send(flow=f)
+
+    def get_by_id(self, flow_id: str) -> mitmproxy.flow.Flow | None:
+        """
+        Get flow with the given id from the store.
+        Returns None if the flow is not found.
+        """
+        return self._store.get(flow_id)
+
+    # View Properties
+    @command.command("view.properties.length")
+    def get_length(self) -> int:
+        """
+        Returns view length.
+        """
+        return len(self)
+
+    @command.command("view.properties.marked")
+    def get_marked(self) -> bool:
+        """
+        Returns true if view is in marked mode.
+        """
+        return self.show_marked
+
+    @command.command("view.properties.marked.toggle")
+    def toggle_marked(self) -> None:
+        """
+        Toggle whether to show marked views only.
+        """
+        self.show_marked = not self.show_marked
+        self._refilter()
+
+    @command.command("view.properties.inbounds")
+    def inbounds(self, index: int) -> bool:
+        """
+        Is this 0 <= index < len(self)?
+        """
+        return 0 <= index < len(self)
+
+    # Event handlers
+    def configure(self, updated):
+        if "view_filter" in updated:
+            filt = None
+            if ctx.options.view_filter:
+                try:
+                    filt = flowfilter.parse(ctx.options.view_filter)
+                except ValueError as e:
+                    raise exceptions.OptionsError(str(e)) from e
+            self.set_filter(filt)
+        if "view_order" in updated:
+            if ctx.options.view_order not in self.orders:
+                raise exceptions.OptionsError(
+                    "Unknown flow order: %s" % ctx.options.view_order
+                )
+            self.set_order(ctx.options.view_order)
+        if "view_order_reversed" in updated:
+            self.set_reversed(ctx.options.view_order_reversed)
+        if "console_focus_follow" in updated:
+            self.focus_follow = ctx.options.console_focus_follow
+
+    def requestheaders(self, f):
+        self.add([f])
+
+    def error(self, f):
+        self.update([f])
+
+    def response(self, f):
+        self.update([f])
+
+    def intercept(self, f):
+        self.update([f])
+
+    def resume(self, f):
+        self.update([f])
+
+    def kill(self, f):
+        self.update([f])
+
+    def tcp_start(self, f):
+        self.add([f])
+
+    def tcp_message(self, f):
+        self.update([f])
+
+    def tcp_error(self, f):
+        self.update([f])
+
+    def tcp_end(self, f):
+        self.update([f])
+
+    def udp_start(self, f):
+        self.add([f])
+
+    def udp_message(self, f):
+        self.update([f])
+
+    def udp_error(self, f):
+        self.update([f])
+
+    def udp_end(self, f):
+        self.update([f])
+
+    def dns_request(self, f):
+        self.add([f])
+
+    def dns_response(self, f):
+        self.update([f])
+
+    def dns_error(self, f):
+        self.update([f])
+
+    def update(self, flows: Sequence[mitmproxy.flow.Flow]) -> None:
+        """
+        Updates a list of flows. If flow is not in the state, it's ignored.
+        """
+        for f in flows:
+            if f.id in self._store:
+                if self.filter(f):
+                    if f not in self._view:
+                        self._base_add(f)
+                        if self.focus_follow:
+                            self.focus.flow = f
+                        self.sig_view_add.send(flow=f)
+                    else:
+                        # This is a tad complicated. The sortedcontainers
+                        # implementation assumes that the order key is stable. If
+                        # it changes mid-way Very Bad Things happen. We detect when
+                        # this happens, and re-fresh the item.
+                        self.order_key.refresh(f)
+                        self.sig_view_update.send(flow=f)
+                else:
+                    try:
+                        idx = self._view.index(f)
+                    except ValueError:
+                        pass  # The value was not in the view
+                    else:
+                        self._view.remove(f)
+                        self.sig_view_remove.send(flow=f, index=idx)
+
+
+class Focus:
+    """
+    Tracks a focus element within a View.
+    """
+
+    def __init__(self, v: View) -> None:
+        self.view = v
+        self._flow: mitmproxy.flow.Flow | None = None
+        self.sig_change = signals.SyncSignal(lambda: None)
+        if len(self.view):
+            self.flow = self.view[0]
+        v.sig_view_add.connect(self._sig_view_add)
+        v.sig_view_remove.connect(self._sig_view_remove)
+        v.sig_view_refresh.connect(self._sig_view_refresh)
+
+    @property
+    def flow(self) -> mitmproxy.flow.Flow | None:
+        return self._flow
+
+    @flow.setter
+    def flow(self, f: mitmproxy.flow.Flow | None):
+        if f is not None and f not in self.view:
+            raise ValueError("Attempt to set focus to flow not in view")
+        self._flow = f
+        self.sig_change.send()
+
+    @property
+    def index(self) -> int | None:
+        if self.flow:
+            return self.view.index(self.flow)
+        return None
+
+    @index.setter
+    def index(self, idx):
+        if idx < 0 or idx > len(self.view) - 1:
+            raise ValueError("Index out of view bounds")
+        self.flow = self.view[idx]
+
+    def _nearest(self, f, v):
+        return min(v._bisect(f), len(v) - 1)
+
+    def _sig_view_remove(self, flow, index):
+        if len(self.view) == 0:
+            self.flow = None
+        elif flow is self.flow:
+            self.index = min(index, len(self.view) - 1)
+
+    def _sig_view_refresh(self):
+        if len(self.view) == 0:
+            self.flow = None
+        elif self.flow is None:
+            self.flow = self.view[0]
+        elif self.flow not in self.view:
+            self.flow = self.view[self._nearest(self.flow, self.view)]
+
+    def _sig_view_add(self, flow):
+        # We only have to act if we don't have a focus element
+        if not self.flow:
+            self.flow = flow
+
+
+class Settings(collections.abc.Mapping):
+    def __init__(self, view: View) -> None:
+        self.view = view
+        self._values: MutableMapping[str, dict] = {}
+        view.sig_store_remove.connect(self._sig_store_remove)
+        view.sig_store_refresh.connect(self._sig_store_refresh)
+
+    def __iter__(self) -> Iterator:
+        return iter(self._values)
+
+    def __len__(self) -> int:
+        return len(self._values)
+
+    def __getitem__(self, f: mitmproxy.flow.Flow) -> dict:
+        if f.id not in self.view._store:
+            raise KeyError
+        return self._values.setdefault(f.id, {})
+
+    def _sig_store_remove(self, flow):
+        if flow.id in self._values:
+            del self._values[flow.id]
+
+    def _sig_store_refresh(self):
+        for fid in list(self._values.keys()):
+            if fid not in self.view._store:
+                del self._values[fid]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_api.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_api.py
new file mode 100644
index 0000000000000000000000000000000000000000..f2a91683e698bf020359d0a3b0a4eb9fee49ef84
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_api.py
@@ -0,0 +1,116 @@
+from __future__ import annotations
+
+import logging
+import typing
+from abc import abstractmethod
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Literal
+
+from mitmproxy import http
+from mitmproxy import tcp
+from mitmproxy import udp
+from mitmproxy.dns import DNSMessage
+from mitmproxy.flow import Flow
+from mitmproxy.websocket import WebSocketMessage
+
+logger = logging.getLogger(__name__)
+
+
+type SyntaxHighlight = Literal["css", "javascript", "xml", "yaml", "none", "error"]
+
+
+@typing.runtime_checkable
+class Contentview(typing.Protocol):
+    """
+    Base class for all contentviews.
+    """
+
+    @property
+    def name(self) -> str:
+        """
+        The name of this contentview, e.g. "XML/HTML".
+        Inferred from the class name by default.
+        """
+        return type(self).__name__.removesuffix("Contentview")
+
+    @property
+    def syntax_highlight(self) -> SyntaxHighlight:
+        """Optional syntax highlighting that should be applied to the prettified output."""
+        return "none"
+
+    @abstractmethod
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        """
+        Transform raw data into human-readable output.
+        May raise an exception (e.g. `ValueError`) if data cannot be prettified.
+        """
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        """
+        Return the priority of this view for rendering `data`.
+        If no particular view is chosen by the user, the view with the highest priority is selected.
+        If this view does not support the given data, return a float < 0.
+        """
+        return 0
+
+    def __lt__(self, other):
+        return self.name.__lt__(other.name)
+
+
+@typing.runtime_checkable
+class InteractiveContentview(Contentview, typing.Protocol):
+    """A contentview that prettifies raw data and allows for interactive editing."""
+
+    @abstractmethod
+    def reencode(
+        self,
+        prettified: str,
+        metadata: Metadata,
+    ) -> bytes:
+        """
+        Reencode the given (modified) `prettified` output into the original data format.
+        May raise an exception (e.g. `ValueError`) if reencoding failed.
+        """
+
+
+@dataclass
+class Metadata:
+    """
+    Metadata about the data that is being prettified.
+
+    Do not rely on any given attribute to be present.
+    """
+
+    flow: Flow | None = None
+    """The flow that the data belongs to, if any."""
+
+    content_type: str | None = None
+    """The HTTP content type of the data, if any."""
+    http_message: http.Message | None = None
+    """The HTTP message that the data belongs to, if any."""
+    tcp_message: tcp.TCPMessage | None = None
+    """The TCP message that the data belongs to, if any."""
+    udp_message: udp.UDPMessage | None = None
+    """The UDP message that the data belongs to, if any."""
+    websocket_message: WebSocketMessage | None = None
+    """The websocket message that the data belongs to, if any."""
+    dns_message: DNSMessage | None = None
+    """The DNS message that the data belongs to, if any."""
+
+    protobuf_definitions: Path | None = None
+    """Path to a .proto file that's used to resolve Protobuf field names."""
+
+    original_data: bytes | None = None
+    """When reencoding: The original data that was prettified."""
+
+
+Metadata.__init__.__doc__ = "@private"
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_compat.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_compat.py
new file mode 100644
index 0000000000000000000000000000000000000000..929b2035d15e27cd1e7e662e731813952e4c5960
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_compat.py
@@ -0,0 +1,74 @@
+from __future__ import annotations
+
+import sys
+import typing
+from typing import Iterator
+
+from mitmproxy import contentviews
+from mitmproxy.contentviews import SyntaxHighlight
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.utils.strutils import always_str
+
+if sys.version_info < (3, 13):  # pragma: no cover
+    from typing_extensions import deprecated
+else:
+    from warnings import deprecated
+
+if typing.TYPE_CHECKING:
+    from mitmproxy.contentviews.base import TViewLine
+    from mitmproxy.contentviews.base import View
+
+
+class LegacyContentview(Contentview):
+    @property
+    def name(self) -> str:
+        return self.contentview.name
+
+    @property
+    def syntax_highlight(self) -> SyntaxHighlight:
+        return getattr(self.contentview, "syntax_highlight", "none")
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return (
+            self.contentview.render_priority(
+                data=data,
+                content_type=metadata.content_type,
+                flow=metadata.flow,
+                http_message=metadata.http_message,
+            )
+            or 0.0
+        )
+
+    def prettify(self, data: bytes, metadata: Metadata) -> str:
+        lines: Iterator[TViewLine]
+        desc_, lines = self.contentview(
+            data,
+            content_type=metadata.content_type,
+            flow=metadata.flow,
+            http_message=metadata.http_message,
+        )
+        return "\n".join(
+            "".join(always_str(text, "utf8", "backslashescape") for tag, text in line)
+            for line in lines
+        )
+
+    def __init__(self, contentview: View):
+        self.contentview = contentview
+
+
+@deprecated("Use `mitmproxy.contentviews.registry` instead.")
+def get(name: str) -> Contentview | None:
+    try:
+        return contentviews.registry[name.lower()]
+    except KeyError:
+        return None
+
+
+@deprecated("Use `mitmproxy.contentviews.Contentview` instead.")
+def remove(view: View):
+    pass
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_registry.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_registry.py
new file mode 100644
index 0000000000000000000000000000000000000000..69b475be02c518619927bc024759b21994778a9c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_registry.py
@@ -0,0 +1,73 @@
+from __future__ import annotations
+
+import logging
+import typing
+from collections.abc import Mapping
+
+from ..utils import signals
+from ._api import Contentview
+from ._api import Metadata
+
+logger = logging.getLogger(__name__)
+
+
+def _on_change(view: Contentview) -> None: ...
+
+
+class ContentviewRegistry(Mapping[str, Contentview]):
+    def __init__(self):
+        self._by_name: dict[str, Contentview] = {}
+        self.on_change = signals.SyncSignal(_on_change)
+
+    def register(self, instance: Contentview | type[Contentview]) -> None:
+        if isinstance(instance, type):
+            instance = instance()
+        name = instance.name.lower()
+        if name in self._by_name:
+            logger.info(f"Replacing existing {name} contentview.")
+        self._by_name[name] = instance
+        self.on_change.send(instance)
+
+    def available_views(self) -> list[str]:
+        return ["auto", *sorted(self._by_name.keys())]
+
+    def get_view(
+        self, data: bytes, metadata: Metadata, view_name: str = "auto"
+    ) -> Contentview:
+        """
+        Get the best contentview for the given data and metadata.
+
+        If `view_name` is "auto" or the provided view not found,
+        the best matching contentview based on `render_priority` will be returned.
+        """
+        if view_name != "auto":
+            try:
+                return self[view_name.lower()]
+            except KeyError:
+                logger.warning(
+                    f"Unknown contentview {view_name!r}, selecting best match instead."
+                )
+
+        max_prio: tuple[float, Contentview] | None = None
+        for name, view in self._by_name.items():
+            try:
+                priority = view.render_priority(data, metadata)
+                assert isinstance(priority, (int, float)), (
+                    f"render_priority for {view.name} did not return a number."
+                )
+            except Exception:
+                logger.exception(f"Error in {view.name}.render_priority")
+            else:
+                if max_prio is None or max_prio[0] < priority:
+                    max_prio = (priority, view)
+        assert max_prio, "At least one view needs to have a working `render_priority`."
+        return max_prio[1]
+
+    def __iter__(self) -> typing.Iterator[str]:
+        return iter(self._by_name)
+
+    def __getitem__(self, item: str) -> Contentview:
+        return self._by_name[item.lower()]
+
+    def __len__(self):
+        return len(self._by_name)
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_utils.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..c4dcb5491e163190a43aafd59b5db0d10890e3d0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_utils.py
@@ -0,0 +1,106 @@
+import io
+import typing
+from collections.abc import Iterable
+from pathlib import Path
+from typing import Any
+
+from ruamel.yaml import YAML
+
+from .. import ctx
+from .. import http
+from ..dns import DNSMessage
+from ..flow import Flow
+from ..tcp import TCPMessage
+from ..udp import UDPMessage
+from ..utils import strutils
+from ..websocket import WebSocketMessage
+from ._api import Metadata
+
+type ContentviewMessage = (
+    http.Message | TCPMessage | UDPMessage | WebSocketMessage | DNSMessage
+)
+
+
+def make_metadata(
+    message: ContentviewMessage,
+    flow: Flow,
+) -> Metadata:
+    metadata = Metadata(
+        flow=flow,
+        protobuf_definitions=Path(ctx.options.protobuf_definitions).expanduser()
+        if ctx.options.protobuf_definitions
+        else None,
+    )
+
+    match message:
+        case http.Message():
+            metadata.http_message = message
+            if ctype := message.headers.get("content-type"):
+                if ct := http.parse_content_type(ctype):
+                    metadata.content_type = f"{ct[0]}/{ct[1]}"
+        case TCPMessage():
+            metadata.tcp_message = message
+        case UDPMessage():
+            metadata.udp_message = message
+        case WebSocketMessage():
+            metadata.websocket_message = message
+        case DNSMessage():
+            metadata.dns_message = message
+        case other:  # pragma: no cover
+            typing.assert_never(other)
+
+    return metadata
+
+
+def get_data(
+    message: ContentviewMessage,
+) -> tuple[bytes | None, str]:
+    content: bytes | None
+    try:
+        content = message.content
+    except ValueError:
+        assert isinstance(message, http.Message)
+        content = message.raw_content
+        enc = "[cannot decode]"
+    else:
+        if isinstance(message, http.Message) and content != message.raw_content:
+            enc = "[decoded {}]".format(message.headers.get("content-encoding"))
+        else:
+            enc = ""
+
+    return content, enc
+
+
+def yaml_dumps(d: Any) -> str:
+    if not d:
+        return ""
+    out = io.StringIO()
+    YAML(typ="rt", pure=True).dump(d, out)
+    return out.getvalue()
+
+
+def yaml_loads(yaml: str) -> Any:
+    return YAML(typ="safe", pure=True).load(yaml)
+
+
+def merge_repeated_keys(items: Iterable[tuple[str, str]]) -> dict[str, str | list[str]]:
+    """
+    Helper function that takes a list of pairs and merges repeated keys.
+    """
+    ret: dict[str, str | list[str]] = {}
+    for key, value in items:
+        if existing := ret.get(key):
+            if isinstance(existing, list):
+                existing.append(value)
+            else:
+                ret[key] = [existing, value]
+        else:
+            ret[key] = value
+    return ret
+
+
+def byte_pairs_to_str_pairs(
+    items: Iterable[tuple[bytes, bytes]],
+) -> Iterable[tuple[str, str]]:
+    for key, value in items:
+        yield (strutils.bytes_to_escaped_str(key), strutils.bytes_to_escaped_str(value))
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_css.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_css.py
new file mode 100644
index 0000000000000000000000000000000000000000..08ef731e5384ff2988c96488ed710a5d79ed31c9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_css.py
@@ -0,0 +1,76 @@
+import re
+import time
+
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.utils import strutils
+
+"""
+A custom CSS prettifier. Compared to other prettifiers, its main features are:
+
+- Implemented in pure Python.
+- Modifies whitespace only.
+- Works with any input.
+- Considerably faster than e.g. cssutils.
+"""
+
+CSS_SPECIAL_AREAS = (
+    "'" + strutils.SINGLELINE_CONTENT + strutils.NO_ESCAPE + "'",
+    '"' + strutils.SINGLELINE_CONTENT + strutils.NO_ESCAPE + '"',
+    r"/\*" + strutils.MULTILINE_CONTENT + r"\*/",
+    "//" + strutils.SINGLELINE_CONTENT + "$",
+)
+CSS_SPECIAL_CHARS = "{};:"
+
+
+def beautify(data: str, indent: str = "    "):
+    """Beautify a string containing CSS code"""
+    data = strutils.escape_special_areas(
+        data.strip(),
+        CSS_SPECIAL_AREAS,
+        CSS_SPECIAL_CHARS,
+    )
+
+    # Add newlines
+    data = re.sub(r"\s*;\s*", ";\n", data)
+    data = re.sub(r"\s*{\s*", " {\n", data)
+    data = re.sub(r"\s*}\s*", "\n}\n\n", data)
+
+    # Fix incorrect ":" placement
+    data = re.sub(r"\s*:\s*(?=[^{]+})", ": ", data)
+    # Fix no space after ","
+    data = re.sub(r"\s*,\s*", ", ", data)
+
+    # indent
+    data = re.sub("\n[ \t]+", "\n", data)
+    data = re.sub("\n(?![}\n])(?=[^{]*})", "\n" + indent, data)
+
+    data = strutils.unescape_special_areas(data)
+    return data.rstrip("\n") + "\n"
+
+
+class ViewCSS(Contentview):
+    syntax_highlight = "css"
+
+    def prettify(self, data: bytes, metadata: Metadata) -> str:
+        data_str = data.decode("utf8", "surrogateescape")
+        return beautify(data_str)
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(bool(data) and metadata.content_type == "text/css")
+
+
+css = ViewCSS()
+
+
+if __name__ == "__main__":  # pragma: no cover
+    with open("../tools/web/static/vendor.css") as f:
+        data = f.read()
+
+    t = time.time()
+    x = beautify(data)
+    print(f"Beautifying vendor.css took {time.time() - t:.2}s")
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_dns.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_dns.py
new file mode 100644
index 0000000000000000000000000000000000000000..4672da015880c6d9ee43e593289be6b096ba068f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_dns.py
@@ -0,0 +1,53 @@
+from mitmproxy.contentviews._api import InteractiveContentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.contentviews._utils import yaml_dumps
+from mitmproxy.contentviews._utils import yaml_loads
+from mitmproxy.dns import DNSMessage as DNSMessage
+from mitmproxy.proxy.layers.dns import pack_message
+
+
+def _is_dns_tcp(metadata: Metadata) -> bool:
+    return bool(metadata.tcp_message or metadata.http_message)
+
+
+class DNSContentview(InteractiveContentview):
+    syntax_highlight = "yaml"
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        if _is_dns_tcp(metadata):
+            data = data[2:]  # hack: cut off length label and hope for the best
+        message = DNSMessage.unpack(data).to_json()
+        del message["status_code"]
+        message.pop("timestamp", None)
+        return yaml_dumps(message)
+
+    def reencode(
+        self,
+        prettified: str,
+        metadata: Metadata,
+    ) -> bytes:
+        data = yaml_loads(prettified)
+        message = DNSMessage.from_json(data)
+        return pack_message(message, "tcp" if _is_dns_tcp(metadata) else "udp")
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(
+            metadata.content_type == "application/dns-message"
+            or bool(
+                metadata.flow
+                and metadata.flow.server_conn
+                and metadata.flow.server_conn.address
+                and metadata.flow.server_conn.address[1] in (53, 5353)
+            )
+        )
+
+
+dns = DNSContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_graphql.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_graphql.py
new file mode 100644
index 0000000000000000000000000000000000000000..3551ec23a395609bad1892c264bf12f5ddeb8e26
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_graphql.py
@@ -0,0 +1,72 @@
+import json
+from typing import Any
+
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+
+
+def format_graphql(data):
+    query = data["query"]
+    header_data = data.copy()
+    header_data["query"] = "..."
+    return """{header}
+---
+{query}
+""".format(header=json.dumps(header_data, indent=2), query=query)
+
+
+def format_query_list(data: list[Any]):
+    num_queries = len(data) - 1
+    result = ""
+    for i, op in enumerate(data):
+        result += f"--- {i}/{num_queries}\n"
+        result += format_graphql(op)
+    return result
+
+
+def is_graphql_query(data):
+    return isinstance(data, dict) and "query" in data and "\n" in data["query"]
+
+
+def is_graphql_batch_query(data):
+    return (
+        isinstance(data, list)
+        and len(data) > 0
+        and isinstance(data[0], dict)
+        and "query" in data[0]
+    )
+
+
+class GraphQLContentview(Contentview):
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        gql = json.loads(data)
+        if is_graphql_query(gql):
+            return format_graphql(gql)
+        elif is_graphql_batch_query(gql):
+            return format_query_list(gql)
+        else:
+            raise ValueError("Not a GraphQL message.")
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        if metadata.content_type != "application/json" or not data:
+            return 0
+
+        try:
+            data = json.loads(data)
+            if is_graphql_query(data) or is_graphql_batch_query(data):
+                return 2
+        except ValueError:
+            pass
+
+        return 0
+
+
+graphql = GraphQLContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_http3.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_http3.py
new file mode 100644
index 0000000000000000000000000000000000000000..f634c06e1a603a885eec54d3e0c27b60e73d4d87
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_http3.py
@@ -0,0 +1,153 @@
+from collections import defaultdict
+from dataclasses import dataclass
+from dataclasses import field
+
+import pylsqpack
+from aioquic.buffer import Buffer
+from aioquic.buffer import BufferReadError
+from aioquic.h3.connection import parse_settings
+from aioquic.h3.connection import Setting
+
+from ..proxy.layers.http import is_h3_alpn
+from mitmproxy import tcp
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy_rs.contentviews import hex_dump
+
+
+@dataclass(frozen=True)
+class Frame:
+    """Representation of an HTTP/3 frame."""
+
+    type: int
+    data: bytes
+
+    def pretty(self) -> str:
+        frame_name = f"0x{self.type:x} Frame"
+        if self.type == 0:
+            frame_name = "DATA Frame"
+        elif self.type == 1:
+            try:
+                hdrs = pylsqpack.Decoder(4096, 16).feed_header(0, self.data)[1]
+                return f"HEADERS Frame\n" + "\n".join(
+                    f"{k.decode(errors='backslashreplace')}: {v.decode(errors='backslashreplace')}"
+                    for k, v in hdrs
+                )
+            except Exception as e:
+                frame_name = f"HEADERS Frame (error: {e})"
+        elif self.type == 4:
+            settings = []
+            try:
+                s = parse_settings(self.data)
+            except Exception as e:
+                frame_name = f"SETTINGS Frame (error: {e})"
+            else:
+                for k, v in s.items():
+                    try:
+                        key = Setting(k).name
+                    except ValueError:
+                        key = f"0x{k:x}"
+                    settings.append(f"{key}: 0x{v:x}")
+                return "SETTINGS Frame\n" + "\n".join(settings)
+        return f"{frame_name}\n" + hex_dump.prettify(self.data, Metadata())
+
+
+@dataclass(frozen=True)
+class StreamType:
+    """Representation of an HTTP/3 stream types."""
+
+    type: int
+
+    def pretty(self) -> str:
+        stream_type = {
+            0x00: "Control Stream",
+            0x01: "Push Stream",
+            0x02: "QPACK Encoder Stream",
+            0x03: "QPACK Decoder Stream",
+        }.get(self.type, f"0x{self.type:x} Stream")
+        return stream_type
+
+
+@dataclass
+class ConnectionState:
+    message_count: int = 0
+    frames: dict[int, list[Frame | StreamType]] = field(default_factory=dict)
+    client_buf: bytearray = field(default_factory=bytearray)
+    server_buf: bytearray = field(default_factory=bytearray)
+
+
+class Http3Contentview(Contentview):
+    def __init__(self) -> None:
+        self.connections: defaultdict[tcp.TCPFlow, ConnectionState] = defaultdict(
+            ConnectionState
+        )
+
+    @property
+    def name(self) -> str:
+        return "HTTP/3 Frames"
+
+    def prettify(self, data: bytes, metadata: Metadata) -> str:
+        flow = metadata.flow
+        tcp_message = metadata.tcp_message
+        assert isinstance(flow, tcp.TCPFlow)
+        assert tcp_message
+
+        state = self.connections[flow]
+
+        for message in flow.messages[state.message_count :]:
+            if message.from_client:
+                buf = state.client_buf
+            else:
+                buf = state.server_buf
+            buf += message.content
+
+            if state.message_count == 0 and flow.metadata["quic_is_unidirectional"]:
+                h3_buf = Buffer(data=bytes(buf[:8]))
+                stream_type = h3_buf.pull_uint_var()
+                consumed = h3_buf.tell()
+                del buf[:consumed]
+                state.frames[0] = [StreamType(stream_type)]
+
+            while True:
+                h3_buf = Buffer(data=bytes(buf[:16]))
+                try:
+                    frame_type = h3_buf.pull_uint_var()
+                    frame_size = h3_buf.pull_uint_var()
+                except BufferReadError:
+                    break
+
+                consumed = h3_buf.tell()
+
+                if len(buf) < consumed + frame_size:
+                    break
+
+                frame_data = bytes(buf[consumed : consumed + frame_size])
+
+                frame = Frame(frame_type, frame_data)
+
+                state.frames.setdefault(state.message_count, []).append(frame)
+
+                del buf[: consumed + frame_size]
+
+            state.message_count += 1
+
+        frames = state.frames.get(flow.messages.index(tcp_message), [])
+        if not frames:
+            return ""
+        else:
+            return "\n\n".join(frame.pretty() for frame in frames)
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        flow = metadata.flow
+        return (
+            2
+            * float(bool(flow and is_h3_alpn(flow.client_conn.alpn)))
+            * float(isinstance(flow, tcp.TCPFlow))
+        )
+
+
+http3 = Http3Contentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_javascript.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_javascript.py
new file mode 100644
index 0000000000000000000000000000000000000000..32348312073c644e2926b089d1ce052049f3f24e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_javascript.py
@@ -0,0 +1,68 @@
+import io
+import re
+
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.utils import strutils
+
+DELIMITERS = "{};\n"
+SPECIAL_AREAS = (
+    r"(?<=[^\w\s)])\s*/(?:[^\n/]|(?<!\\)(?:\\\\)*\\/)+?/(?=[gimsuy]{0,6}\s*(?:[;,).\n]|$))",
+    r"'" + strutils.MULTILINE_CONTENT_LINE_CONTINUATION + strutils.NO_ESCAPE + "'",
+    r'"' + strutils.MULTILINE_CONTENT_LINE_CONTINUATION + strutils.NO_ESCAPE + '"',
+    r"`" + strutils.MULTILINE_CONTENT + strutils.NO_ESCAPE + "`",
+    r"/\*" + strutils.MULTILINE_CONTENT + r"\*/",
+    r"//" + strutils.SINGLELINE_CONTENT + "$",
+    r"for\(" + strutils.SINGLELINE_CONTENT + r"\)",
+)
+
+
+def beautify(data):
+    data = strutils.escape_special_areas(data, SPECIAL_AREAS, DELIMITERS)
+
+    data = re.sub(r"\s*{\s*(?!};)", " {\n", data)
+    data = re.sub(r"\s*;\s*", ";\n", data)
+    data = re.sub(r"(?<!{)\s*}(;)?\s*", r"\n}\1\n", data)
+
+    beautified = io.StringIO()
+    indent_level = 0
+
+    for line in data.splitlines(True):
+        if line.endswith("{\n"):
+            beautified.write(" " * 2 * indent_level + line)
+            indent_level += 1
+        elif line.startswith("}"):
+            indent_level -= 1
+            beautified.write(" " * 2 * indent_level + line)
+        else:
+            beautified.write(" " * 2 * indent_level + line)
+
+    data = strutils.unescape_special_areas(beautified.getvalue())
+    return data
+
+
+class JavaScriptContentview(Contentview):
+    syntax_highlight = "javascript"
+    __content_types = (
+        "application/x-javascript",
+        "application/javascript",
+        "text/javascript",
+    )
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        data_str = data.decode("utf-8", "replace")
+        return beautify(data_str)
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(bool(data) and metadata.content_type in self.__content_types)
+
+
+javascript = JavaScriptContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_json.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_json.py
new file mode 100644
index 0000000000000000000000000000000000000000..25bc118466e6cccc1711a91c30cbfc4a25cfba97
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_json.py
@@ -0,0 +1,31 @@
+import json
+
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+
+
+class JSONContentview(Contentview):
+    syntax_highlight = "yaml"
+
+    def prettify(self, data: bytes, metadata: Metadata) -> str:
+        data = json.loads(data)
+        return json.dumps(data, indent=4, ensure_ascii=False)
+
+    def render_priority(self, data: bytes, metadata: Metadata) -> float:
+        if not data:
+            return 0
+        if metadata.content_type in (
+            "application/json",
+            "application/json-rpc",
+        ):
+            return 1
+        if (
+            metadata.content_type
+            and metadata.content_type.startswith("application/")
+            and metadata.content_type.endswith("json")
+        ):
+            return 1
+        return 0
+
+
+json_view = JSONContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_mqtt.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_mqtt.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8377af9354d0dd936b4285597b246fe8d6fa576
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_mqtt.py
@@ -0,0 +1,277 @@
+import struct
+
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.utils import strutils
+
+# from https://github.com/nikitastupin/mitmproxy-mqtt-script
+
+
+class MQTTControlPacket:
+    # Packet types
+    (
+        CONNECT,
+        CONNACK,
+        PUBLISH,
+        PUBACK,
+        PUBREC,
+        PUBREL,
+        PUBCOMP,
+        SUBSCRIBE,
+        SUBACK,
+        UNSUBSCRIBE,
+        UNSUBACK,
+        PINGREQ,
+        PINGRESP,
+        DISCONNECT,
+    ) = range(1, 15)
+
+    # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Table_2.1_-
+    Names = [
+        "reserved",
+        "CONNECT",
+        "CONNACK",
+        "PUBLISH",
+        "PUBACK",
+        "PUBREC",
+        "PUBREL",
+        "PUBCOMP",
+        "SUBSCRIBE",
+        "SUBACK",
+        "UNSUBSCRIBE",
+        "UNSUBACK",
+        "PINGREQ",
+        "PINGRESP",
+        "DISCONNECT",
+        "reserved",
+    ]
+
+    PACKETS_WITH_IDENTIFIER = [
+        PUBACK,
+        PUBREC,
+        PUBREL,
+        PUBCOMP,
+        SUBSCRIBE,
+        SUBACK,
+        UNSUBSCRIBE,
+        UNSUBACK,
+    ]
+
+    def __init__(self, packet):
+        self._packet = packet
+        # Fixed header
+        # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718020
+        self.packet_type = self._parse_packet_type()
+        self.packet_type_human = self.Names[self.packet_type]
+        self.dup, self.qos, self.retain = self._parse_flags()
+        self.remaining_length = self._parse_remaining_length()
+        # Variable header & Payload
+        # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718024
+        # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718026
+        if self.packet_type == self.CONNECT:
+            self._parse_connect_variable_headers()
+            self._parse_connect_payload()
+        elif self.packet_type == self.PUBLISH:
+            self._parse_publish_variable_headers()
+            self._parse_publish_payload()
+        elif self.packet_type == self.SUBSCRIBE:
+            self._parse_subscribe_variable_headers()
+            self._parse_subscribe_payload()
+        elif self.packet_type == self.SUBACK:
+            pass
+        elif self.packet_type == self.UNSUBSCRIBE:
+            pass
+        else:
+            self.payload = None
+
+    def pprint(self):
+        s = f"[{self.Names[self.packet_type]}]"
+
+        if self.packet_type == self.CONNECT:
+            assert self.payload
+            s += f"""
+
+Client Id: {self.payload["ClientId"]}
+Will Topic: {self.payload.get("WillTopic")}
+Will Message: {strutils.bytes_to_escaped_str(self.payload.get("WillMessage", b"None"))}
+User Name: {self.payload.get("UserName")}
+Password: {strutils.bytes_to_escaped_str(self.payload.get("Password", b"None"))}
+"""
+        elif self.packet_type == self.SUBSCRIBE:
+            s += " sent topic filters: "
+            s += ", ".join([f"'{tf}'" for tf in self.topic_filters])
+        elif self.packet_type == self.PUBLISH:
+            assert self.payload
+            topic_name = strutils.bytes_to_escaped_str(self.topic_name)
+            payload = strutils.bytes_to_escaped_str(self.payload)
+
+            s += f" '{payload}' to topic '{topic_name}'"
+        elif self.packet_type in [self.PINGREQ, self.PINGRESP]:
+            pass
+        else:
+            s = f"Packet type {self.Names[self.packet_type]} is not supported yet!"
+
+        return s
+
+    def _parse_length_prefixed_bytes(self, offset):
+        field_length_bytes = self._packet[offset : offset + 2]
+        field_length = struct.unpack("!H", field_length_bytes)[0]
+
+        field_content_bytes = self._packet[offset + 2 : offset + 2 + field_length]
+
+        return field_length + 2, field_content_bytes
+
+    def _parse_publish_variable_headers(self):
+        offset = len(self._packet) - self.remaining_length
+
+        field_length, field_content_bytes = self._parse_length_prefixed_bytes(offset)
+        self.topic_name = field_content_bytes
+
+        if self.qos in [0x01, 0x02]:
+            offset += field_length
+            self.packet_identifier = self._packet[offset : offset + 2]
+
+    def _parse_publish_payload(self):
+        fixed_header_length = len(self._packet) - self.remaining_length
+        variable_header_length = 2 + len(self.topic_name)
+
+        if self.qos in [0x01, 0x02]:
+            variable_header_length += 2
+
+        offset = fixed_header_length + variable_header_length
+
+        self.payload = self._packet[offset:]
+
+    def _parse_subscribe_variable_headers(self):
+        self._parse_packet_identifier()
+
+    def _parse_subscribe_payload(self):
+        offset = len(self._packet) - self.remaining_length + 2
+
+        self.topic_filters = {}
+
+        while len(self._packet) - offset > 0:
+            field_length, topic_filter_bytes = self._parse_length_prefixed_bytes(offset)
+            offset += field_length
+
+            qos = self._packet[offset : offset + 1]
+            offset += 1
+
+            topic_filter = topic_filter_bytes.decode("utf-8")
+            self.topic_filters[topic_filter] = {"qos": qos}
+
+    # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718030
+    def _parse_connect_variable_headers(self):
+        offset = len(self._packet) - self.remaining_length
+
+        self.variable_headers = {}
+        self.connect_flags = {}
+
+        self.variable_headers["ProtocolName"] = self._packet[offset : offset + 6]
+        self.variable_headers["ProtocolLevel"] = self._packet[offset + 6 : offset + 7]
+        self.variable_headers["ConnectFlags"] = self._packet[offset + 7 : offset + 8]
+        self.variable_headers["KeepAlive"] = self._packet[offset + 8 : offset + 10]
+        # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc385349229
+        self.connect_flags["CleanSession"] = bool(
+            self.variable_headers["ConnectFlags"][0] & 0x02
+        )
+        self.connect_flags["Will"] = bool(
+            self.variable_headers["ConnectFlags"][0] & 0x04
+        )
+        self.will_qos = (self.variable_headers["ConnectFlags"][0] >> 3) & 0x03
+        self.connect_flags["WillRetain"] = bool(
+            self.variable_headers["ConnectFlags"][0] & 0x20
+        )
+        self.connect_flags["Password"] = bool(
+            self.variable_headers["ConnectFlags"][0] & 0x40
+        )
+        self.connect_flags["UserName"] = bool(
+            self.variable_headers["ConnectFlags"][0] & 0x80
+        )
+
+    # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718031
+    def _parse_connect_payload(self):
+        fields = []
+        offset = len(self._packet) - self.remaining_length + 10
+
+        while len(self._packet) - offset > 0:
+            field_length, field_content = self._parse_length_prefixed_bytes(offset)
+            fields.append(field_content)
+            offset += field_length
+
+        self.payload = {}
+
+        for f in fields:
+            # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc385349242
+            if "ClientId" not in self.payload:
+                self.payload["ClientId"] = f.decode("utf-8")
+            # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc385349243
+            elif self.connect_flags["Will"] and "WillTopic" not in self.payload:
+                self.payload["WillTopic"] = f.decode("utf-8")
+            elif self.connect_flags["Will"] and "WillMessage" not in self.payload:
+                self.payload["WillMessage"] = f
+            elif (
+                self.connect_flags["UserName"] and "UserName" not in self.payload
+            ):  # pragma: no cover
+                self.payload["UserName"] = f.decode("utf-8")
+            elif (
+                self.connect_flags["Password"] and "Password" not in self.payload
+            ):  # pragma: no cover
+                self.payload["Password"] = f
+            else:
+                raise AssertionError(f"Unknown field in CONNECT payload: {f}")
+
+    def _parse_packet_type(self):
+        return self._packet[0] >> 4
+
+    # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718022
+    def _parse_flags(self):
+        dup = None
+        qos = None
+        retain = None
+
+        if self.packet_type == self.PUBLISH:
+            dup = (self._packet[0] >> 3) & 0x01
+            qos = (self._packet[0] >> 1) & 0x03
+            retain = self._packet[0] & 0x01
+
+        return dup, qos, retain
+
+    # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Table_2.4_Size
+    def _parse_remaining_length(self):
+        multiplier = 1
+        value = 0
+        i = 1
+
+        while True:
+            encodedByte = self._packet[i]
+            value += (encodedByte & 127) * multiplier
+            multiplier *= 128
+
+            if multiplier > 128 * 128 * 128:
+                raise ValueError("Malformed Remaining Length")
+
+            if encodedByte & 128 == 0:
+                break
+
+            i += 1
+
+        return value
+
+    # http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Table_2.5_-
+    def _parse_packet_identifier(self):
+        offset = len(self._packet) - self.remaining_length
+        self.packet_identifier = self._packet[offset : offset + 2]
+
+
+class MQTTContentview(Contentview):
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        mqtt_packet = MQTTControlPacket(data)
+        return mqtt_packet.pprint()
+
+
+mqtt = MQTTContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_multipart.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_multipart.py
new file mode 100644
index 0000000000000000000000000000000000000000..ede2416957761def3f5f372195d66267ac0cbc9a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_multipart.py
@@ -0,0 +1,32 @@
+from ._utils import byte_pairs_to_str_pairs
+from ._utils import merge_repeated_keys
+from ._utils import yaml_dumps
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.net.http.multipart import decode_multipart
+
+
+class MultipartContentview(Contentview):
+    name = "Multipart Form"
+    syntax_highlight = "yaml"
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        if not metadata.http_message:
+            raise ValueError("Not an HTTP message")
+        content_type = metadata.http_message.headers["content-type"]
+        items = decode_multipart(content_type, data)
+        return yaml_dumps(merge_repeated_keys(byte_pairs_to_str_pairs(items)))
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(bool(data) and metadata.content_type == "multipart/form-data")
+
+
+multipart = MultipartContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_query.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_query.py
new file mode 100644
index 0000000000000000000000000000000000000000..ad4bd6a5b3fd1596c972fea37d15fd87bf4da294
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_query.py
@@ -0,0 +1,31 @@
+from .. import http
+from ._utils import merge_repeated_keys
+from ._utils import yaml_dumps
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+
+
+class QueryContentview(Contentview):
+    syntax_highlight = "yaml"
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        if not isinstance(metadata.http_message, http.Request):
+            raise ValueError("Not an HTTP request.")
+        items = metadata.http_message.query.items(multi=True)
+        return yaml_dumps(merge_repeated_keys(items))
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return 0.3 * float(
+            not data and bool(getattr(metadata.http_message, "query", False))
+        )
+
+
+query = QueryContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_raw.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_raw.py
new file mode 100644
index 0000000000000000000000000000000000000000..9608cbf99dd27c58018f134904a6b2d13e98d1fd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_raw.py
@@ -0,0 +1,17 @@
+from ._api import Contentview
+from ._api import Metadata
+
+
+class RawContentview(Contentview):
+    def prettify(self, data: bytes, metadata: Metadata) -> str:
+        return data.decode("utf-8", "backslashreplace")
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return 0.1
+
+
+raw = RawContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_socketio.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_socketio.py
new file mode 100644
index 0000000000000000000000000000000000000000..1f3a107038975a1f70c28a1ef4a00eb43fb29f06
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_socketio.py
@@ -0,0 +1,98 @@
+from abc import abstractmethod
+from enum import Enum
+
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.http import HTTPFlow
+from mitmproxy.utils import strutils
+
+
+class PacketType(Enum):
+    @property
+    @abstractmethod
+    def visible(self) -> bool:
+        raise RuntimeError  # pragma: no cover
+
+    def __str__(self):
+        return f"{type(self).__name__}.{self.name}"
+
+
+class EngineIO(PacketType):
+    # https://github.com/socketio/engine.io-protocol?tab=readme-ov-file#protocol
+    OPEN = ord("0")
+    CLOSE = ord("1")
+    PING = ord("2")
+    PONG = ord("3")
+    MESSAGE = ord("4")
+    UPGRADE = ord("5")
+    NOOP = ord("6")
+
+    @property
+    def visible(self):
+        return self not in (
+            self.PING,
+            self.PONG,
+        )
+
+
+class SocketIO(PacketType):
+    # https://github.com/socketio/socket.io-protocol?tab=readme-ov-file#exchange-protocol
+    CONNECT = ord("0")
+    DISCONNECT = ord("1")
+    EVENT = ord("2")
+    ACK = ord("3")
+    CONNECT_ERROR = ord("4")
+    BINARY_EVENT = ord("5")
+    BINARY_ACK = ord("6")
+
+    @property
+    def visible(self):
+        return self not in (
+            self.ACK,
+            self.BINARY_ACK,
+        )
+
+
+def parse_packet(data: bytes) -> tuple[PacketType, bytes]:
+    # throws IndexError/ValueError if invalid packet
+    engineio_type = EngineIO(data[0])
+    data = data[1:]
+
+    if engineio_type is not EngineIO.MESSAGE:
+        return engineio_type, data
+
+    socketio_type = SocketIO(data[0])
+    data = data[1:]
+
+    return socketio_type, data
+
+
+class SocketIOContentview(Contentview):
+    name = "Socket.IO"
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        packet_type, msg = parse_packet(data)
+        if not packet_type.visible:
+            return ""
+        return f"{packet_type} {strutils.bytes_to_escaped_str(msg)}"
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(
+            bool(
+                data
+                and isinstance(metadata.flow, HTTPFlow)
+                and metadata.flow.websocket is not None
+                and "/socket.io/?" in metadata.flow.request.path
+            )
+        )
+
+
+socket_io = SocketIOContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_urlencoded.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_urlencoded.py
new file mode 100644
index 0000000000000000000000000000000000000000..cf4aa8f632a8461e9010c2dde717c099edb78042
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_urlencoded.py
@@ -0,0 +1,33 @@
+import urllib
+import urllib.parse
+
+from ._utils import byte_pairs_to_str_pairs
+from ._utils import merge_repeated_keys
+from ._utils import yaml_dumps
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+
+
+class URLEncodedContentview(Contentview):
+    name = "URL-encoded"
+    syntax_highlight = "yaml"
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        items = urllib.parse.parse_qsl(data, keep_blank_values=True)
+        return yaml_dumps(merge_repeated_keys(byte_pairs_to_str_pairs(items)))
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(
+            bool(data) and metadata.content_type == "application/x-www-form-urlencoded"
+        )
+
+
+urlencoded = URLEncodedContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_wbxml.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_wbxml.py
new file mode 100644
index 0000000000000000000000000000000000000000..a7ad742a550dbc46c3ecd77b8c80153122cb9e84
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/_view_wbxml.py
@@ -0,0 +1,25 @@
+from mitmproxy.contentviews._api import Contentview
+from mitmproxy.contentviews._api import Metadata
+from mitmproxy.contrib.wbxml import ASCommandResponse
+
+
+class WBXMLContentview(Contentview):
+    __content_types = ("application/vnd.wap.wbxml", "application/vnd.ms-sync.wbxml")
+    syntax_highlight = "xml"
+
+    def prettify(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> str:
+        return ASCommandResponse.ASCommandResponse(data).xmlString
+
+    def render_priority(
+        self,
+        data: bytes,
+        metadata: Metadata,
+    ) -> float:
+        return float(bool(data) and metadata.content_type in self.__content_types)
+
+
+wbxml = WBXMLContentview()
diff --git a/python/user_packages/Python313/site-packages/mitmproxy/contentviews/base.py b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/base.py
new file mode 100644
index 0000000000000000000000000000000000000000..b8e479cc07c170ee795f35c139525f6eb23f1af4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy/contentviews/base.py
@@ -0,0 +1,129 @@
+# Default view cutoff *in lines*
+import sys
+from abc import ABC
+from abc import abstractmethod
+from collections.abc import Iterable
+from collections.abc import Iterator
+from collections.abc import Mapping
+from typing import ClassVar
+from typing import Union
+
+from mitmproxy import flow
+from mitmproxy import http
+
+if sys.version_info < (3, 13):  # pragma: no cover
+    from typing_extensions import deprecated
+else:
+    from warnings import deprecated
+
+KEY_MAX = 30
+
+TTextType = Union[str, bytes]  # FIXME: This should be either bytes or str ultimately.
+TViewLine = list[tuple[str, TTextType]]
+TViewResult = tuple[str, Iterator[TViewLine]]
+
+
+@deprecated("Use `mitmproxy.contentviews.Contentview` instead.")
+class View(ABC):
+    """
+    Deprecated, do not use.
+    """
+
+    name: ClassVar[str]
+
+    @abstractmethod
+    def __call__(
+        self,
+        data: bytes,
+        *,
+        content_type: str | None = None,
+        flow: flow.Flow | None = None,
+        http_message: http.Message | None = None,
+        **unknown_metadata,
+    ) -> TViewResult:
+        """
+        Transform raw data into human-readable output.
+
+        Returns a (description, content generator) tuple.
+        The content generator yields lists of (style, text) tuples, where each list represents
+        a single line. ``text`` is a unfiltered string which may need to be escaped,
+        depending on the used output. For example, it may contain terminal control sequences
+        or unfiltered HTML.
+
+        Except for `data`, implementations must not rely on any given argument to be present.
+        To ensure compatibility with future mitmproxy versions, unknown keyword arguments should be ignored.
+
+        The content generator must not yield tuples of tuples, because urwid cannot process that.
+        You have to yield a *list* of tuples per line.
+        """
+        raise NotImplementedError()  # pragma: no cover
+
+    def render_priority(
+        self,
+        data: bytes,
+        *,
+        content_type: str | None = None,
+        flow: flow.Flow | None = None,
+        http_message: http.Message | None = None,
+        **unknown_metadata,
+    ) -> float:
+        """
+        Return the priority of this view for rendering `data`.
+        If no particular view is chosen by the user, the view with the highest priority is selected.
+
+        Except for `data`, implementations must not rely on any given argument to be present.
+        To ensure compatibility with future mitmproxy versions, unknown keyword arguments should be ignored.
+        """
+        return 0
+
+    def __lt__(self, other):
+        assert isinstance(other, View)
+        return self.name.__lt__(other.name)
+
+
+@deprecated("Use `mitmproxy.contentviews.Contentview` instead.")
+def format_pairs(items: Iterable[tuple[TTextType, TTextType]]) -> Iterator[TViewLine]:
+    """
+    Helper function that accepts a list of (k,v) pairs into a list of
+    [
+        ("key", key    )
+        ("value", value)
+    ]
+    where key is padded to a uniform width
+    """
+
+    max_key_len = max((len(k[0]) for k in items), default=0)
+    max_key_len = min((max_key_len, KEY_MAX), default=0)
+
+    for key, value in items:
+        if isinstance(key, bytes):
+            key += b":"
+        else:
+            key += ":"
+
+        key = key.ljust(max_key_len + 2)
+
+        yield [("header", key), ("text", value)]
+
+
+@deprecated("Use `mitmproxy.contentviews.Contentview` instead.")
+def format_dict(d: Mapping[TTextType, TTextType]) -> Iterator[TViewLine]:
+    """
+    Helper function that transforms the given dictionary into a list of
+    [
+        ("key",   key  )
+        ("value", value)
+    ]
+    entries, where key is padded to a uniform width.
+    """
+
+    return format_pairs(d.items())
+
+
+@deprecated("Use `mitmproxy.contentviews.Contentview` instead.")
+def format_text(text: TTextType) -> Iterator[TViewLine]:
+    """
+    Helper function that transforms bytes into the view output format.
+    """
+    for line in text.splitlines():
+        yield [("text", line)]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/mitmproxy_rs/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..36e6d1dae130e6bc214c35773f8af854b53abe7c
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diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__init__.py b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..0a9bb3903c32dd0a7d8d97025db4004e9ca84417
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__init__.py
@@ -0,0 +1,7 @@
+from pathlib import Path
+
+here = Path(__file__).parent.absolute()
+
+
+def hook_dirs() -> list[str]:
+    return [str(here)]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__pycache__/__init__.cpython-313.pyc
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index 0000000000000000000000000000000000000000..fbb1b02cd408ae36343570eb7ca2079aec909f08
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diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__pycache__/hook-mitmproxy_windows.cpython-313.pyc b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/__pycache__/hook-mitmproxy_windows.cpython-313.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..b42dacea640e660e10644c2dafa0d6b3b72b757c
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diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_linux.py b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_linux.py
new file mode 100644
index 0000000000000000000000000000000000000000..3423d2255b39db274eeb7c5ca2200672938a2c90
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_linux.py
@@ -0,0 +1,6 @@
+import sysconfig
+import os.path
+
+binaries = [
+    (os.path.join(sysconfig.get_path("scripts"), "mitmproxy-linux-redirector"), ".")
+]
diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_macos.py b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_macos.py
new file mode 100644
index 0000000000000000000000000000000000000000..e8fb2ed468c357ca103f69cd19f1f65972d4539b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_macos.py
@@ -0,0 +1,3 @@
+from PyInstaller.utils.hooks import collect_data_files
+
+datas = collect_data_files("mitmproxy_macos")
diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_rs.py b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_rs.py
new file mode 100644
index 0000000000000000000000000000000000000000..0ffbdf4015bac2f873e846442c20ed8e9ceb2135
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_rs.py
@@ -0,0 +1,14 @@
+import platform
+from PyInstaller.utils.hooks import collect_data_files
+
+datas = collect_data_files("mitmproxy_rs")
+
+hiddenimports = []
+
+match platform.system():
+    case "Darwin":
+        hiddenimports.append("mitmproxy_macos")
+    case "Windows":
+        hiddenimports.append("mitmproxy_windows")
+    case "Linux":
+        hiddenimports.append("mitmproxy_linux")
diff --git a/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_windows.py b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_windows.py
new file mode 100644
index 0000000000000000000000000000000000000000..a4be1aeaf752c4d03ec4a90bf01c876a14d9a78c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mitmproxy_rs/_pyinstaller/hook-mitmproxy_windows.py
@@ -0,0 +1,3 @@
+from PyInstaller.utils.hooks import collect_data_files
+
+datas = collect_data_files("mitmproxy_windows")
diff --git a/python/user_packages/Python313/site-packages/mitmproxy_windows/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/mitmproxy_windows/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..8088f95c290a4b4d66a86dd0a23b74dee0785ade
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diff --git a/python/user_packages/Python313/site-packages/mmh3-5.2.1.dist-info/licenses/LICENSE b/python/user_packages/Python313/site-packages/mmh3-5.2.1.dist-info/licenses/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..11d319d65fa53ed5528690645a7dc2e84f0d5923
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mmh3-5.2.1.dist-info/licenses/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2011-2026 Hajime Senuma
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/python/user_packages/Python313/site-packages/msgpack-1.1.2.dist-info/licenses/COPYING b/python/user_packages/Python313/site-packages/msgpack-1.1.2.dist-info/licenses/COPYING
new file mode 100644
index 0000000000000000000000000000000000000000..78c4cd2dae9ab69cb6883b783c189267aa3f4fef
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/msgpack-1.1.2.dist-info/licenses/COPYING
@@ -0,0 +1,14 @@
+Copyright (C) 2008-2011 INADA Naoki <songofacandy@gmail.com>
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
diff --git a/python/user_packages/Python313/site-packages/msgpack/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/msgpack/__pycache__/__init__.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/msgpack/__pycache__/fallback.cpython-313.pyc b/python/user_packages/Python313/site-packages/msgpack/__pycache__/fallback.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/multidict-6.7.1.dist-info/licenses/LICENSE b/python/user_packages/Python313/site-packages/multidict-6.7.1.dist-info/licenses/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..8727172ae058e56805bd8ed0f988b6788711dcfd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/multidict-6.7.1.dist-info/licenses/LICENSE
@@ -0,0 +1,13 @@
+   Copyright 2016 Andrew Svetlov and aio-libs contributors
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/python/user_packages/Python313/site-packages/multidict/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/multidict/__pycache__/__init__.cpython-313.pyc
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index 0000000000000000000000000000000000000000..3d1cdf7e6aa569b15d7bc4578f5480d2f0a84627
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diff --git a/python/user_packages/Python313/site-packages/mypy_extensions-1.1.0.dist-info/licenses/LICENSE b/python/user_packages/Python313/site-packages/mypy_extensions-1.1.0.dist-info/licenses/LICENSE
new file mode 100644
index 0000000000000000000000000000000000000000..bdb7786b2322c9d2ab970bbfba8771d6e8774723
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/mypy_extensions-1.1.0.dist-info/licenses/LICENSE
@@ -0,0 +1,27 @@
+Mypy extensions are licensed under the terms of the MIT license, reproduced below.
+
+= = = = =
+
+The MIT License
+
+Copyright (c) 2016-2017 Jukka Lehtosalo and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+= = = = =
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--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__multiarray_api.c
@@ -0,0 +1,376 @@
+
+/* These pointers will be stored in the C-object for use in other
+    extension modules
+*/
+
+void *PyArray_API[] = {
+        (void *) PyArray_GetNDArrayCVersion,
+        NULL,
+        (void *) &PyArray_Type,
+        (void *) &PyArrayDescr_Type,
+        NULL,
+        (void *) &PyArrayIter_Type,
+        (void *) &PyArrayMultiIter_Type,
+        (int *) &NPY_NUMUSERTYPES,
+        (void *) &PyBoolArrType_Type,
+        (void *) &_PyArrayScalar_BoolValues,
+        (void *) &PyGenericArrType_Type,
+        (void *) &PyNumberArrType_Type,
+        (void *) &PyIntegerArrType_Type,
+        (void *) &PySignedIntegerArrType_Type,
+        (void *) &PyUnsignedIntegerArrType_Type,
+        (void *) &PyInexactArrType_Type,
+        (void *) &PyFloatingArrType_Type,
+        (void *) &PyComplexFloatingArrType_Type,
+        (void *) &PyFlexibleArrType_Type,
+        (void *) &PyCharacterArrType_Type,
+        (void *) &PyByteArrType_Type,
+        (void *) &PyShortArrType_Type,
+        (void *) &PyIntArrType_Type,
+        (void *) &PyLongArrType_Type,
+        (void *) &PyLongLongArrType_Type,
+        (void *) &PyUByteArrType_Type,
+        (void *) &PyUShortArrType_Type,
+        (void *) &PyUIntArrType_Type,
+        (void *) &PyULongArrType_Type,
+        (void *) &PyULongLongArrType_Type,
+        (void *) &PyFloatArrType_Type,
+        (void *) &PyDoubleArrType_Type,
+        (void *) &PyLongDoubleArrType_Type,
+        (void *) &PyCFloatArrType_Type,
+        (void *) &PyCDoubleArrType_Type,
+        (void *) &PyCLongDoubleArrType_Type,
+        (void *) &PyObjectArrType_Type,
+        (void *) &PyStringArrType_Type,
+        (void *) &PyUnicodeArrType_Type,
+        (void *) &PyVoidArrType_Type,
+        NULL,
+        NULL,
+        (void *) PyArray_INCREF,
+        (void *) PyArray_XDECREF,
+        (void *) PyArray_SetStringFunction,
+        (void *) PyArray_DescrFromType,
+        (void *) PyArray_TypeObjectFromType,
+        (void *) PyArray_Zero,
+        (void *) PyArray_One,
+        (void *) PyArray_CastToType,
+        (void *) PyArray_CopyInto,
+        (void *) PyArray_CopyAnyInto,
+        (void *) PyArray_CanCastSafely,
+        (void *) PyArray_CanCastTo,
+        (void *) PyArray_ObjectType,
+        (void *) PyArray_DescrFromObject,
+        (void *) PyArray_ConvertToCommonType,
+        (void *) PyArray_DescrFromScalar,
+        (void *) PyArray_DescrFromTypeObject,
+        (void *) PyArray_Size,
+        (void *) PyArray_Scalar,
+        (void *) PyArray_FromScalar,
+        (void *) PyArray_ScalarAsCtype,
+        (void *) PyArray_CastScalarToCtype,
+        (void *) PyArray_CastScalarDirect,
+        (void *) PyArray_Pack,
+        NULL,
+        NULL,
+        NULL,
+        (void *) PyArray_FromAny,
+        (void *) PyArray_EnsureArray,
+        (void *) PyArray_EnsureAnyArray,
+        (void *) PyArray_FromFile,
+        (void *) PyArray_FromString,
+        (void *) PyArray_FromBuffer,
+        (void *) PyArray_FromIter,
+        (void *) PyArray_Return,
+        (void *) PyArray_GetField,
+        (void *) PyArray_SetField,
+        (void *) PyArray_Byteswap,
+        (void *) PyArray_Resize,
+        NULL,
+        NULL,
+        NULL,
+        (void *) PyArray_CopyObject,
+        (void *) PyArray_NewCopy,
+        (void *) PyArray_ToList,
+        (void *) PyArray_ToString,
+        (void *) PyArray_ToFile,
+        (void *) PyArray_Dump,
+        (void *) PyArray_Dumps,
+        (void *) PyArray_ValidType,
+        (void *) PyArray_UpdateFlags,
+        (void *) PyArray_New,
+        (void *) PyArray_NewFromDescr,
+        (void *) PyArray_DescrNew,
+        (void *) PyArray_DescrNewFromType,
+        (void *) PyArray_GetPriority,
+        (void *) PyArray_IterNew,
+        (void *) PyArray_MultiIterNew,
+        (void *) PyArray_PyIntAsInt,
+        (void *) PyArray_PyIntAsIntp,
+        (void *) PyArray_Broadcast,
+        NULL,
+        (void *) PyArray_FillWithScalar,
+        (void *) PyArray_CheckStrides,
+        (void *) PyArray_DescrNewByteorder,
+        (void *) PyArray_IterAllButAxis,
+        (void *) PyArray_CheckFromAny,
+        (void *) PyArray_FromArray,
+        (void *) PyArray_FromInterface,
+        (void *) PyArray_FromStructInterface,
+        (void *) PyArray_FromArrayAttr,
+        (void *) PyArray_ScalarKind,
+        (void *) PyArray_CanCoerceScalar,
+        NULL,
+        (void *) PyArray_CanCastScalar,
+        NULL,
+        (void *) PyArray_RemoveSmallest,
+        (void *) PyArray_ElementStrides,
+        (void *) PyArray_Item_INCREF,
+        (void *) PyArray_Item_XDECREF,
+        NULL,
+        (void *) PyArray_Transpose,
+        (void *) PyArray_TakeFrom,
+        (void *) PyArray_PutTo,
+        (void *) PyArray_PutMask,
+        (void *) PyArray_Repeat,
+        (void *) PyArray_Choose,
+        (void *) PyArray_Sort,
+        (void *) PyArray_ArgSort,
+        (void *) PyArray_SearchSorted,
+        (void *) PyArray_ArgMax,
+        (void *) PyArray_ArgMin,
+        (void *) PyArray_Reshape,
+        (void *) PyArray_Newshape,
+        (void *) PyArray_Squeeze,
+        (void *) PyArray_View,
+        (void *) PyArray_SwapAxes,
+        (void *) PyArray_Max,
+        (void *) PyArray_Min,
+        (void *) PyArray_Ptp,
+        (void *) PyArray_Mean,
+        (void *) PyArray_Trace,
+        (void *) PyArray_Diagonal,
+        (void *) PyArray_Clip,
+        (void *) PyArray_Conjugate,
+        (void *) PyArray_Nonzero,
+        (void *) PyArray_Std,
+        (void *) PyArray_Sum,
+        (void *) PyArray_CumSum,
+        (void *) PyArray_Prod,
+        (void *) PyArray_CumProd,
+        (void *) PyArray_All,
+        (void *) PyArray_Any,
+        (void *) PyArray_Compress,
+        (void *) PyArray_Flatten,
+        (void *) PyArray_Ravel,
+        (void *) PyArray_MultiplyList,
+        (void *) PyArray_MultiplyIntList,
+        (void *) PyArray_GetPtr,
+        (void *) PyArray_CompareLists,
+        (void *) PyArray_AsCArray,
+        NULL,
+        NULL,
+        (void *) PyArray_Free,
+        (void *) PyArray_Converter,
+        (void *) PyArray_IntpFromSequence,
+        (void *) PyArray_Concatenate,
+        (void *) PyArray_InnerProduct,
+        (void *) PyArray_MatrixProduct,
+        NULL,
+        (void *) PyArray_Correlate,
+        NULL,
+        (void *) PyArray_DescrConverter,
+        (void *) PyArray_DescrConverter2,
+        (void *) PyArray_IntpConverter,
+        (void *) PyArray_BufferConverter,
+        (void *) PyArray_AxisConverter,
+        (void *) PyArray_BoolConverter,
+        (void *) PyArray_ByteorderConverter,
+        (void *) PyArray_OrderConverter,
+        (void *) PyArray_EquivTypes,
+        (void *) PyArray_Zeros,
+        (void *) PyArray_Empty,
+        (void *) PyArray_Where,
+        (void *) PyArray_Arange,
+        (void *) PyArray_ArangeObj,
+        (void *) PyArray_SortkindConverter,
+        (void *) PyArray_LexSort,
+        (void *) PyArray_Round,
+        (void *) PyArray_EquivTypenums,
+        (void *) PyArray_RegisterDataType,
+        (void *) PyArray_RegisterCastFunc,
+        (void *) PyArray_RegisterCanCast,
+        (void *) PyArray_InitArrFuncs,
+        (void *) PyArray_IntTupleFromIntp,
+        NULL,
+        (void *) PyArray_ClipmodeConverter,
+        (void *) PyArray_OutputConverter,
+        (void *) PyArray_BroadcastToShape,
+        NULL,
+        NULL,
+        (void *) PyArray_DescrAlignConverter,
+        (void *) PyArray_DescrAlignConverter2,
+        (void *) PyArray_SearchsideConverter,
+        (void *) PyArray_CheckAxis,
+        (void *) PyArray_OverflowMultiplyList,
+        NULL,
+        (void *) PyArray_MultiIterFromObjects,
+        (void *) PyArray_GetEndianness,
+        (void *) PyArray_GetNDArrayCFeatureVersion,
+        (void *) PyArray_Correlate2,
+        (void *) PyArray_NeighborhoodIterNew,
+        (void *) &PyTimeIntegerArrType_Type,
+        (void *) &PyDatetimeArrType_Type,
+        (void *) &PyTimedeltaArrType_Type,
+        (void *) &PyHalfArrType_Type,
+        (void *) &NpyIter_Type,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        (void *) NpyIter_GetTransferFlags,
+        (void *) NpyIter_New,
+        (void *) NpyIter_MultiNew,
+        (void *) NpyIter_AdvancedNew,
+        (void *) NpyIter_Copy,
+        (void *) NpyIter_Deallocate,
+        (void *) NpyIter_HasDelayedBufAlloc,
+        (void *) NpyIter_HasExternalLoop,
+        (void *) NpyIter_EnableExternalLoop,
+        (void *) NpyIter_GetInnerStrideArray,
+        (void *) NpyIter_GetInnerLoopSizePtr,
+        (void *) NpyIter_Reset,
+        (void *) NpyIter_ResetBasePointers,
+        (void *) NpyIter_ResetToIterIndexRange,
+        (void *) NpyIter_GetNDim,
+        (void *) NpyIter_GetNOp,
+        (void *) NpyIter_GetIterNext,
+        (void *) NpyIter_GetIterSize,
+        (void *) NpyIter_GetIterIndexRange,
+        (void *) NpyIter_GetIterIndex,
+        (void *) NpyIter_GotoIterIndex,
+        (void *) NpyIter_HasMultiIndex,
+        (void *) NpyIter_GetShape,
+        (void *) NpyIter_GetGetMultiIndex,
+        (void *) NpyIter_GotoMultiIndex,
+        (void *) NpyIter_RemoveMultiIndex,
+        (void *) NpyIter_HasIndex,
+        (void *) NpyIter_IsBuffered,
+        (void *) NpyIter_IsGrowInner,
+        (void *) NpyIter_GetBufferSize,
+        (void *) NpyIter_GetIndexPtr,
+        (void *) NpyIter_GotoIndex,
+        (void *) NpyIter_GetDataPtrArray,
+        (void *) NpyIter_GetDescrArray,
+        (void *) NpyIter_GetOperandArray,
+        (void *) NpyIter_GetIterView,
+        (void *) NpyIter_GetReadFlags,
+        (void *) NpyIter_GetWriteFlags,
+        (void *) NpyIter_DebugPrint,
+        (void *) NpyIter_IterationNeedsAPI,
+        (void *) NpyIter_GetInnerFixedStrideArray,
+        (void *) NpyIter_RemoveAxis,
+        (void *) NpyIter_GetAxisStrideArray,
+        (void *) NpyIter_RequiresBuffering,
+        (void *) NpyIter_GetInitialDataPtrArray,
+        (void *) NpyIter_CreateCompatibleStrides,
+        (void *) PyArray_CastingConverter,
+        (void *) PyArray_CountNonzero,
+        (void *) PyArray_PromoteTypes,
+        (void *) PyArray_MinScalarType,
+        (void *) PyArray_ResultType,
+        (void *) PyArray_CanCastArrayTo,
+        (void *) PyArray_CanCastTypeTo,
+        (void *) PyArray_EinsteinSum,
+        (void *) PyArray_NewLikeArray,
+        NULL,
+        (void *) PyArray_ConvertClipmodeSequence,
+        (void *) PyArray_MatrixProduct2,
+        (void *) NpyIter_IsFirstVisit,
+        (void *) PyArray_SetBaseObject,
+        (void *) PyArray_CreateSortedStridePerm,
+        (void *) PyArray_RemoveAxesInPlace,
+        (void *) PyArray_DebugPrint,
+        (void *) PyArray_FailUnlessWriteable,
+        (void *) PyArray_SetUpdateIfCopyBase,
+        (void *) PyDataMem_NEW,
+        (void *) PyDataMem_FREE,
+        (void *) PyDataMem_RENEW,
+        NULL,
+        (NPY_CASTING *) &NPY_DEFAULT_ASSIGN_CASTING,
+        NULL,
+        NULL,
+        NULL,
+        (void *) PyArray_Partition,
+        (void *) PyArray_ArgPartition,
+        (void *) PyArray_SelectkindConverter,
+        (void *) PyDataMem_NEW_ZEROED,
+        (void *) PyArray_CheckAnyScalarExact,
+        NULL,
+        (void *) PyArray_ResolveWritebackIfCopy,
+        (void *) PyArray_SetWritebackIfCopyBase,
+        (void *) PyDataMem_SetHandler,
+        (void *) PyDataMem_GetHandler,
+        (PyObject* *) &PyDataMem_DefaultHandler,
+        (void *) NpyDatetime_ConvertDatetime64ToDatetimeStruct,
+        (void *) NpyDatetime_ConvertDatetimeStructToDatetime64,
+        (void *) NpyDatetime_ConvertPyDateTimeToDatetimeStruct,
+        (void *) NpyDatetime_GetDatetimeISO8601StrLen,
+        (void *) NpyDatetime_MakeISO8601Datetime,
+        (void *) NpyDatetime_ParseISO8601Datetime,
+        (void *) NpyString_load,
+        (void *) NpyString_pack,
+        (void *) NpyString_pack_null,
+        (void *) NpyString_acquire_allocator,
+        (void *) NpyString_acquire_allocators,
+        (void *) NpyString_release_allocator,
+        (void *) NpyString_release_allocators,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        (void *) PyArray_GetDefaultDescr,
+        (void *) PyArrayInitDTypeMeta_FromSpec,
+        (void *) PyArray_CommonDType,
+        (void *) PyArray_PromoteDTypeSequence,
+        (void *) _PyDataType_GetArrFuncs,
+        NULL,
+        NULL,
+        NULL
+};
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__multiarray_api.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__multiarray_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..5bd89a3bd80f6d26c3b84ce43c84371883a518f1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__multiarray_api.h
@@ -0,0 +1,1628 @@
+
+#if defined(_MULTIARRAYMODULE) || defined(WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE)
+
+typedef struct {
+        PyObject_HEAD
+        npy_bool obval;
+} PyBoolScalarObject;
+
+extern NPY_NO_EXPORT PyTypeObject PyArrayNeighborhoodIter_Type;
+extern NPY_NO_EXPORT PyBoolScalarObject _PyArrayScalar_BoolValues[2];
+
+NPY_NO_EXPORT  unsigned int PyArray_GetNDArrayCVersion \
+       (void);
+extern NPY_NO_EXPORT PyTypeObject PyArray_Type;
+
+extern NPY_NO_EXPORT PyArray_DTypeMeta PyArrayDescr_TypeFull;
+#define PyArrayDescr_Type (*(PyTypeObject *)(&PyArrayDescr_TypeFull))
+
+extern NPY_NO_EXPORT PyTypeObject PyArrayIter_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyArrayMultiIter_Type;
+
+extern NPY_NO_EXPORT int NPY_NUMUSERTYPES;
+
+extern NPY_NO_EXPORT PyTypeObject PyBoolArrType_Type;
+
+extern NPY_NO_EXPORT PyBoolScalarObject _PyArrayScalar_BoolValues[2];
+
+extern NPY_NO_EXPORT PyTypeObject PyGenericArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyNumberArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyIntegerArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PySignedIntegerArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyUnsignedIntegerArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyInexactArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyFloatingArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyComplexFloatingArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyFlexibleArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyCharacterArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyByteArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyShortArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyIntArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyLongArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyLongLongArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyUByteArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyUShortArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyUIntArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyULongArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyULongLongArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyFloatArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyDoubleArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyLongDoubleArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyCFloatArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyCDoubleArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyCLongDoubleArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyObjectArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyStringArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyUnicodeArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyVoidArrType_Type;
+
+NPY_NO_EXPORT  int PyArray_INCREF \
+       (PyArrayObject *);
+NPY_NO_EXPORT  int PyArray_XDECREF \
+       (PyArrayObject *);
+NPY_NO_EXPORT  void PyArray_SetStringFunction \
+       (PyObject *, int);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrFromType \
+       (int);
+NPY_NO_EXPORT  PyObject * PyArray_TypeObjectFromType \
+       (int);
+NPY_NO_EXPORT  char * PyArray_Zero \
+       (PyArrayObject *);
+NPY_NO_EXPORT  char * PyArray_One \
+       (PyArrayObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_CastToType \
+       (PyArrayObject *, PyArray_Descr *, int);
+NPY_NO_EXPORT  int PyArray_CopyInto \
+       (PyArrayObject *, PyArrayObject *);
+NPY_NO_EXPORT  int PyArray_CopyAnyInto \
+       (PyArrayObject *, PyArrayObject *);
+NPY_NO_EXPORT  int PyArray_CanCastSafely \
+       (int, int);
+NPY_NO_EXPORT  npy_bool PyArray_CanCastTo \
+       (PyArray_Descr *, PyArray_Descr *);
+NPY_NO_EXPORT  int PyArray_ObjectType \
+       (PyObject *, int);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrFromObject \
+       (PyObject *, PyArray_Descr *);
+NPY_NO_EXPORT  PyArrayObject ** PyArray_ConvertToCommonType \
+       (PyObject *, int *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrFromScalar \
+       (PyObject *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrFromTypeObject \
+       (PyObject *);
+NPY_NO_EXPORT  npy_intp PyArray_Size \
+       (PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Scalar \
+       (void *, PyArray_Descr *, PyObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromScalar \
+       (PyObject *, PyArray_Descr *);
+NPY_NO_EXPORT  void PyArray_ScalarAsCtype \
+       (PyObject *, void *);
+NPY_NO_EXPORT  int PyArray_CastScalarToCtype \
+       (PyObject *, void *, PyArray_Descr *);
+NPY_NO_EXPORT  int PyArray_CastScalarDirect \
+       (PyObject *, PyArray_Descr *, void *, int);
+NPY_NO_EXPORT  int PyArray_Pack \
+       (PyArray_Descr *, void *, PyObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromAny \
+       (PyObject *, PyArray_Descr *, int, int, int, PyObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(1) PyObject * PyArray_EnsureArray \
+       (PyObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(1) PyObject * PyArray_EnsureAnyArray \
+       (PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_FromFile \
+       (FILE *, PyArray_Descr *, npy_intp, char *);
+NPY_NO_EXPORT  PyObject * PyArray_FromString \
+       (char *, npy_intp, PyArray_Descr *, npy_intp, char *);
+NPY_NO_EXPORT  PyObject * PyArray_FromBuffer \
+       (PyObject *, PyArray_Descr *, npy_intp, npy_intp);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromIter \
+       (PyObject *, PyArray_Descr *, npy_intp);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(1) PyObject * PyArray_Return \
+       (PyArrayObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_GetField \
+       (PyArrayObject *, PyArray_Descr *, int);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) int PyArray_SetField \
+       (PyArrayObject *, PyArray_Descr *, int, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Byteswap \
+       (PyArrayObject *, npy_bool);
+NPY_NO_EXPORT  PyObject * PyArray_Resize \
+       (PyArrayObject *, PyArray_Dims *, int, NPY_ORDER NPY_UNUSED(order));
+NPY_NO_EXPORT  int PyArray_CopyObject \
+       (PyArrayObject *, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_NewCopy \
+       (PyArrayObject *, NPY_ORDER);
+NPY_NO_EXPORT  PyObject * PyArray_ToList \
+       (PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_ToString \
+       (PyArrayObject *, NPY_ORDER);
+NPY_NO_EXPORT  int PyArray_ToFile \
+       (PyArrayObject *, FILE *, char *, char *);
+NPY_NO_EXPORT  int PyArray_Dump \
+       (PyObject *, PyObject *, int);
+NPY_NO_EXPORT  PyObject * PyArray_Dumps \
+       (PyObject *, int);
+NPY_NO_EXPORT  int PyArray_ValidType \
+       (int);
+NPY_NO_EXPORT  void PyArray_UpdateFlags \
+       (PyArrayObject *, int);
+NPY_NO_EXPORT  PyObject * PyArray_New \
+       (PyTypeObject *, int, npy_intp const *, int, npy_intp const *, void *, int, int, PyObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_NewFromDescr \
+       (PyTypeObject *, PyArray_Descr *, int, npy_intp const *, npy_intp const *, void *, int, PyObject *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrNew \
+       (PyArray_Descr *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrNewFromType \
+       (int);
+NPY_NO_EXPORT  double PyArray_GetPriority \
+       (PyObject *, double);
+NPY_NO_EXPORT  PyObject * PyArray_IterNew \
+       (PyObject *);
+NPY_NO_EXPORT  PyObject* PyArray_MultiIterNew \
+       (int, ...);
+NPY_NO_EXPORT  int PyArray_PyIntAsInt \
+       (PyObject *);
+NPY_NO_EXPORT  npy_intp PyArray_PyIntAsIntp \
+       (PyObject *);
+NPY_NO_EXPORT  int PyArray_Broadcast \
+       (PyArrayMultiIterObject *);
+NPY_NO_EXPORT  int PyArray_FillWithScalar \
+       (PyArrayObject *, PyObject *);
+NPY_NO_EXPORT  npy_bool PyArray_CheckStrides \
+       (int, int, npy_intp, npy_intp, npy_intp const *, npy_intp const *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_DescrNewByteorder \
+       (PyArray_Descr *, char);
+NPY_NO_EXPORT  PyObject * PyArray_IterAllButAxis \
+       (PyObject *, int *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_CheckFromAny \
+       (PyObject *, PyArray_Descr *, int, int, int, PyObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromArray \
+       (PyArrayObject *, PyArray_Descr *, int);
+NPY_NO_EXPORT  PyObject * PyArray_FromInterface \
+       (PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_FromStructInterface \
+       (PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_FromArrayAttr \
+       (PyObject *, PyArray_Descr *, PyObject *);
+NPY_NO_EXPORT  NPY_SCALARKIND PyArray_ScalarKind \
+       (int, PyArrayObject **);
+NPY_NO_EXPORT  int PyArray_CanCoerceScalar \
+       (int, int, NPY_SCALARKIND);
+NPY_NO_EXPORT  npy_bool PyArray_CanCastScalar \
+       (PyTypeObject *, PyTypeObject *);
+NPY_NO_EXPORT  int PyArray_RemoveSmallest \
+       (PyArrayMultiIterObject *);
+NPY_NO_EXPORT  int PyArray_ElementStrides \
+       (PyObject *);
+NPY_NO_EXPORT  void PyArray_Item_INCREF \
+       (char *, PyArray_Descr *);
+NPY_NO_EXPORT  void PyArray_Item_XDECREF \
+       (char *, PyArray_Descr *);
+NPY_NO_EXPORT  PyObject * PyArray_Transpose \
+       (PyArrayObject *, PyArray_Dims *);
+NPY_NO_EXPORT  PyObject * PyArray_TakeFrom \
+       (PyArrayObject *, PyObject *, int, PyArrayObject *, NPY_CLIPMODE);
+NPY_NO_EXPORT  PyObject * PyArray_PutTo \
+       (PyArrayObject *, PyObject*, PyObject *, NPY_CLIPMODE);
+NPY_NO_EXPORT  PyObject * PyArray_PutMask \
+       (PyArrayObject *, PyObject*, PyObject*);
+NPY_NO_EXPORT  PyObject * PyArray_Repeat \
+       (PyArrayObject *, PyObject *, int);
+NPY_NO_EXPORT  PyObject * PyArray_Choose \
+       (PyArrayObject *, PyObject *, PyArrayObject *, NPY_CLIPMODE);
+NPY_NO_EXPORT  int PyArray_Sort \
+       (PyArrayObject *, int, NPY_SORTKIND);
+NPY_NO_EXPORT  PyObject * PyArray_ArgSort \
+       (PyArrayObject *, int, NPY_SORTKIND);
+NPY_NO_EXPORT  PyObject * PyArray_SearchSorted \
+       (PyArrayObject *, PyObject *, NPY_SEARCHSIDE, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_ArgMax \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_ArgMin \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Reshape \
+       (PyArrayObject *, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Newshape \
+       (PyArrayObject *, PyArray_Dims *, NPY_ORDER);
+NPY_NO_EXPORT  PyObject * PyArray_Squeeze \
+       (PyArrayObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_View \
+       (PyArrayObject *, PyArray_Descr *, PyTypeObject *);
+NPY_NO_EXPORT  PyObject * PyArray_SwapAxes \
+       (PyArrayObject *, int, int);
+NPY_NO_EXPORT  PyObject * PyArray_Max \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Min \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Ptp \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Mean \
+       (PyArrayObject *, int, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Trace \
+       (PyArrayObject *, int, int, int, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Diagonal \
+       (PyArrayObject *, int, int, int);
+NPY_NO_EXPORT  PyObject * PyArray_Clip \
+       (PyArrayObject *, PyObject *, PyObject *, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Conjugate \
+       (PyArrayObject *, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Nonzero \
+       (PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Std \
+       (PyArrayObject *, int, int, PyArrayObject *, int);
+NPY_NO_EXPORT  PyObject * PyArray_Sum \
+       (PyArrayObject *, int, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_CumSum \
+       (PyArrayObject *, int, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Prod \
+       (PyArrayObject *, int, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_CumProd \
+       (PyArrayObject *, int, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_All \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Any \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Compress \
+       (PyArrayObject *, PyObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Flatten \
+       (PyArrayObject *, NPY_ORDER);
+NPY_NO_EXPORT  PyObject * PyArray_Ravel \
+       (PyArrayObject *, NPY_ORDER);
+NPY_NO_EXPORT  npy_intp PyArray_MultiplyList \
+       (npy_intp const *, int);
+NPY_NO_EXPORT  int PyArray_MultiplyIntList \
+       (int const *, int);
+NPY_NO_EXPORT  void * PyArray_GetPtr \
+       (PyArrayObject *, npy_intp const*);
+NPY_NO_EXPORT  int PyArray_CompareLists \
+       (npy_intp const *, npy_intp const *, int);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(5) int PyArray_AsCArray \
+       (PyObject **, void *, npy_intp *, int, PyArray_Descr*);
+NPY_NO_EXPORT  int PyArray_Free \
+       (PyObject *, void *);
+NPY_NO_EXPORT  int PyArray_Converter \
+       (PyObject *, PyObject **);
+NPY_NO_EXPORT  int PyArray_IntpFromSequence \
+       (PyObject *, npy_intp *, int);
+NPY_NO_EXPORT  PyObject * PyArray_Concatenate \
+       (PyObject *, int);
+NPY_NO_EXPORT  PyObject * PyArray_InnerProduct \
+       (PyObject *, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_MatrixProduct \
+       (PyObject *, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Correlate \
+       (PyObject *, PyObject *, int);
+NPY_NO_EXPORT  int PyArray_DescrConverter \
+       (PyObject *, PyArray_Descr **);
+NPY_NO_EXPORT  int PyArray_DescrConverter2 \
+       (PyObject *, PyArray_Descr **);
+NPY_NO_EXPORT  int PyArray_IntpConverter \
+       (PyObject *, PyArray_Dims *);
+NPY_NO_EXPORT  int PyArray_BufferConverter \
+       (PyObject *, PyArray_Chunk *);
+NPY_NO_EXPORT  int PyArray_AxisConverter \
+       (PyObject *, int *);
+NPY_NO_EXPORT  int PyArray_BoolConverter \
+       (PyObject *, npy_bool *);
+NPY_NO_EXPORT  int PyArray_ByteorderConverter \
+       (PyObject *, char *);
+NPY_NO_EXPORT  int PyArray_OrderConverter \
+       (PyObject *, NPY_ORDER *);
+NPY_NO_EXPORT  unsigned char PyArray_EquivTypes \
+       (PyArray_Descr *, PyArray_Descr *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(3) PyObject * PyArray_Zeros \
+       (int, npy_intp const *, PyArray_Descr *, int);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(3) PyObject * PyArray_Empty \
+       (int, npy_intp const *, PyArray_Descr *, int);
+NPY_NO_EXPORT  PyObject * PyArray_Where \
+       (PyObject *, PyObject *, PyObject *);
+NPY_NO_EXPORT  PyObject * PyArray_Arange \
+       (double, double, double, int);
+NPY_NO_EXPORT  PyObject * PyArray_ArangeObj \
+       (PyObject *, PyObject *, PyObject *, PyArray_Descr *);
+NPY_NO_EXPORT  int PyArray_SortkindConverter \
+       (PyObject *, NPY_SORTKIND *);
+NPY_NO_EXPORT  PyObject * PyArray_LexSort \
+       (PyObject *, int);
+NPY_NO_EXPORT  PyObject * PyArray_Round \
+       (PyArrayObject *, int, PyArrayObject *);
+NPY_NO_EXPORT  unsigned char PyArray_EquivTypenums \
+       (int, int);
+NPY_NO_EXPORT  int PyArray_RegisterDataType \
+       (PyArray_DescrProto *);
+NPY_NO_EXPORT  int PyArray_RegisterCastFunc \
+       (PyArray_Descr *, int, PyArray_VectorUnaryFunc *);
+NPY_NO_EXPORT  int PyArray_RegisterCanCast \
+       (PyArray_Descr *, int, NPY_SCALARKIND);
+NPY_NO_EXPORT  void PyArray_InitArrFuncs \
+       (PyArray_ArrFuncs *);
+NPY_NO_EXPORT  PyObject * PyArray_IntTupleFromIntp \
+       (int, npy_intp const *);
+NPY_NO_EXPORT  int PyArray_ClipmodeConverter \
+       (PyObject *, NPY_CLIPMODE *);
+NPY_NO_EXPORT  int PyArray_OutputConverter \
+       (PyObject *, PyArrayObject **);
+NPY_NO_EXPORT  PyObject * PyArray_BroadcastToShape \
+       (PyObject *, npy_intp *, int);
+NPY_NO_EXPORT  int PyArray_DescrAlignConverter \
+       (PyObject *, PyArray_Descr **);
+NPY_NO_EXPORT  int PyArray_DescrAlignConverter2 \
+       (PyObject *, PyArray_Descr **);
+NPY_NO_EXPORT  int PyArray_SearchsideConverter \
+       (PyObject *, void *);
+NPY_NO_EXPORT  PyObject * PyArray_CheckAxis \
+       (PyArrayObject *, int *, int);
+NPY_NO_EXPORT  npy_intp PyArray_OverflowMultiplyList \
+       (npy_intp const *, int);
+NPY_NO_EXPORT  PyObject* PyArray_MultiIterFromObjects \
+       (PyObject **, int, int, ...);
+NPY_NO_EXPORT  int PyArray_GetEndianness \
+       (void);
+NPY_NO_EXPORT  unsigned int PyArray_GetNDArrayCFeatureVersion \
+       (void);
+NPY_NO_EXPORT  PyObject * PyArray_Correlate2 \
+       (PyObject *, PyObject *, int);
+NPY_NO_EXPORT  PyObject* PyArray_NeighborhoodIterNew \
+       (PyArrayIterObject *, const npy_intp *, int, PyArrayObject*);
+extern NPY_NO_EXPORT PyTypeObject PyTimeIntegerArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyDatetimeArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyTimedeltaArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyHalfArrType_Type;
+
+extern NPY_NO_EXPORT PyTypeObject NpyIter_Type;
+
+NPY_NO_EXPORT  NPY_ARRAYMETHOD_FLAGS NpyIter_GetTransferFlags \
+       (NpyIter *);
+NPY_NO_EXPORT  NpyIter * NpyIter_New \
+       (PyArrayObject *, npy_uint32, NPY_ORDER, NPY_CASTING, PyArray_Descr*);
+NPY_NO_EXPORT  NpyIter * NpyIter_MultiNew \
+       (int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **);
+NPY_NO_EXPORT  NpyIter * NpyIter_AdvancedNew \
+       (int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **, int, int **, npy_intp *, npy_intp);
+NPY_NO_EXPORT  NpyIter * NpyIter_Copy \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_Deallocate \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_bool NpyIter_HasDelayedBufAlloc \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_bool NpyIter_HasExternalLoop \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_EnableExternalLoop \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_intp * NpyIter_GetInnerStrideArray \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_intp * NpyIter_GetInnerLoopSizePtr \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_Reset \
+       (NpyIter *, char **);
+NPY_NO_EXPORT  int NpyIter_ResetBasePointers \
+       (NpyIter *, char **, char **);
+NPY_NO_EXPORT  int NpyIter_ResetToIterIndexRange \
+       (NpyIter *, npy_intp, npy_intp, char **);
+NPY_NO_EXPORT  int NpyIter_GetNDim \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_GetNOp \
+       (NpyIter *);
+NPY_NO_EXPORT  NpyIter_IterNextFunc * NpyIter_GetIterNext \
+       (NpyIter *, char **);
+NPY_NO_EXPORT  npy_intp NpyIter_GetIterSize \
+       (NpyIter *);
+NPY_NO_EXPORT  void NpyIter_GetIterIndexRange \
+       (NpyIter *, npy_intp *, npy_intp *);
+NPY_NO_EXPORT  npy_intp NpyIter_GetIterIndex \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_GotoIterIndex \
+       (NpyIter *, npy_intp);
+NPY_NO_EXPORT  npy_bool NpyIter_HasMultiIndex \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_GetShape \
+       (NpyIter *, npy_intp *);
+NPY_NO_EXPORT  NpyIter_GetMultiIndexFunc * NpyIter_GetGetMultiIndex \
+       (NpyIter *, char **);
+NPY_NO_EXPORT  int NpyIter_GotoMultiIndex \
+       (NpyIter *, npy_intp const *);
+NPY_NO_EXPORT  int NpyIter_RemoveMultiIndex \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_bool NpyIter_HasIndex \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_bool NpyIter_IsBuffered \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_bool NpyIter_IsGrowInner \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_intp NpyIter_GetBufferSize \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_intp * NpyIter_GetIndexPtr \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_GotoIndex \
+       (NpyIter *, npy_intp);
+NPY_NO_EXPORT  char ** NpyIter_GetDataPtrArray \
+       (NpyIter *);
+NPY_NO_EXPORT  PyArray_Descr ** NpyIter_GetDescrArray \
+       (NpyIter *);
+NPY_NO_EXPORT  PyArrayObject ** NpyIter_GetOperandArray \
+       (NpyIter *);
+NPY_NO_EXPORT  PyArrayObject * NpyIter_GetIterView \
+       (NpyIter *, npy_intp);
+NPY_NO_EXPORT  void NpyIter_GetReadFlags \
+       (NpyIter *, char *);
+NPY_NO_EXPORT  void NpyIter_GetWriteFlags \
+       (NpyIter *, char *);
+NPY_NO_EXPORT  void NpyIter_DebugPrint \
+       (NpyIter *);
+NPY_NO_EXPORT  npy_bool NpyIter_IterationNeedsAPI \
+       (NpyIter *);
+NPY_NO_EXPORT  void NpyIter_GetInnerFixedStrideArray \
+       (NpyIter *, npy_intp *);
+NPY_NO_EXPORT  int NpyIter_RemoveAxis \
+       (NpyIter *, int);
+NPY_NO_EXPORT  npy_intp * NpyIter_GetAxisStrideArray \
+       (NpyIter *, int);
+NPY_NO_EXPORT  npy_bool NpyIter_RequiresBuffering \
+       (NpyIter *);
+NPY_NO_EXPORT  char ** NpyIter_GetInitialDataPtrArray \
+       (NpyIter *);
+NPY_NO_EXPORT  int NpyIter_CreateCompatibleStrides \
+       (NpyIter *, npy_intp, npy_intp *);
+NPY_NO_EXPORT  int PyArray_CastingConverter \
+       (PyObject *, NPY_CASTING *);
+NPY_NO_EXPORT  npy_intp PyArray_CountNonzero \
+       (PyArrayObject *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_PromoteTypes \
+       (PyArray_Descr *, PyArray_Descr *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_MinScalarType \
+       (PyArrayObject *);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_ResultType \
+       (npy_intp, PyArrayObject *arrs[], npy_intp, PyArray_Descr *descrs[]);
+NPY_NO_EXPORT  npy_bool PyArray_CanCastArrayTo \
+       (PyArrayObject *, PyArray_Descr *, NPY_CASTING);
+NPY_NO_EXPORT  npy_bool PyArray_CanCastTypeTo \
+       (PyArray_Descr *, PyArray_Descr *, NPY_CASTING);
+NPY_NO_EXPORT  PyArrayObject * PyArray_EinsteinSum \
+       (char *, npy_intp, PyArrayObject **, PyArray_Descr *, NPY_ORDER, NPY_CASTING, PyArrayObject *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(3) PyObject * PyArray_NewLikeArray \
+       (PyArrayObject *, NPY_ORDER, PyArray_Descr *, int);
+NPY_NO_EXPORT  int PyArray_ConvertClipmodeSequence \
+       (PyObject *, NPY_CLIPMODE *, int);
+NPY_NO_EXPORT  PyObject * PyArray_MatrixProduct2 \
+       (PyObject *, PyObject *, PyArrayObject*);
+NPY_NO_EXPORT  npy_bool NpyIter_IsFirstVisit \
+       (NpyIter *, int);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) int PyArray_SetBaseObject \
+       (PyArrayObject *, PyObject *);
+NPY_NO_EXPORT  void PyArray_CreateSortedStridePerm \
+       (int, npy_intp const *, npy_stride_sort_item *);
+NPY_NO_EXPORT  void PyArray_RemoveAxesInPlace \
+       (PyArrayObject *, const npy_bool *);
+NPY_NO_EXPORT  void PyArray_DebugPrint \
+       (PyArrayObject *);
+NPY_NO_EXPORT  int PyArray_FailUnlessWriteable \
+       (PyArrayObject *, const char *);
+NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) int PyArray_SetUpdateIfCopyBase \
+       (PyArrayObject *, PyArrayObject *);
+NPY_NO_EXPORT  void * PyDataMem_NEW \
+       (size_t);
+NPY_NO_EXPORT  void PyDataMem_FREE \
+       (void *);
+NPY_NO_EXPORT  void * PyDataMem_RENEW \
+       (void *, size_t);
+extern NPY_NO_EXPORT NPY_CASTING NPY_DEFAULT_ASSIGN_CASTING;
+
+NPY_NO_EXPORT  int PyArray_Partition \
+       (PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND);
+NPY_NO_EXPORT  PyObject * PyArray_ArgPartition \
+       (PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND);
+NPY_NO_EXPORT  int PyArray_SelectkindConverter \
+       (PyObject *, NPY_SELECTKIND *);
+NPY_NO_EXPORT  void * PyDataMem_NEW_ZEROED \
+       (size_t, size_t);
+NPY_NO_EXPORT  int PyArray_CheckAnyScalarExact \
+       (PyObject *);
+NPY_NO_EXPORT  int PyArray_ResolveWritebackIfCopy \
+       (PyArrayObject *);
+NPY_NO_EXPORT  int PyArray_SetWritebackIfCopyBase \
+       (PyArrayObject *, PyArrayObject *);
+NPY_NO_EXPORT  PyObject * PyDataMem_SetHandler \
+       (PyObject *);
+NPY_NO_EXPORT  PyObject * PyDataMem_GetHandler \
+       (void);
+extern NPY_NO_EXPORT PyObject* PyDataMem_DefaultHandler;
+
+NPY_NO_EXPORT  int NpyDatetime_ConvertDatetime64ToDatetimeStruct \
+       (PyArray_DatetimeMetaData *, npy_datetime, npy_datetimestruct *);
+NPY_NO_EXPORT  int NpyDatetime_ConvertDatetimeStructToDatetime64 \
+       (PyArray_DatetimeMetaData *, const npy_datetimestruct *, npy_datetime *);
+NPY_NO_EXPORT  int NpyDatetime_ConvertPyDateTimeToDatetimeStruct \
+       (PyObject *, npy_datetimestruct *, NPY_DATETIMEUNIT *, int);
+NPY_NO_EXPORT  int NpyDatetime_GetDatetimeISO8601StrLen \
+       (int, NPY_DATETIMEUNIT);
+NPY_NO_EXPORT  int NpyDatetime_MakeISO8601Datetime \
+       (npy_datetimestruct *, char *, npy_intp, int, int, NPY_DATETIMEUNIT, int, NPY_CASTING);
+NPY_NO_EXPORT  int NpyDatetime_ParseISO8601Datetime \
+       (char const *, Py_ssize_t, NPY_DATETIMEUNIT, NPY_CASTING, npy_datetimestruct *, NPY_DATETIMEUNIT *, npy_bool *);
+NPY_NO_EXPORT  int NpyString_load \
+       (npy_string_allocator *, const npy_packed_static_string *, npy_static_string *);
+NPY_NO_EXPORT  int NpyString_pack \
+       (npy_string_allocator *, npy_packed_static_string *, const char *, size_t);
+NPY_NO_EXPORT  int NpyString_pack_null \
+       (npy_string_allocator *, npy_packed_static_string *);
+NPY_NO_EXPORT  npy_string_allocator * NpyString_acquire_allocator \
+       (const PyArray_StringDTypeObject *);
+NPY_NO_EXPORT  void NpyString_acquire_allocators \
+       (size_t, PyArray_Descr *const descrs[], npy_string_allocator *allocators[]);
+NPY_NO_EXPORT  void NpyString_release_allocator \
+       (npy_string_allocator *);
+NPY_NO_EXPORT  void NpyString_release_allocators \
+       (size_t, npy_string_allocator *allocators[]);
+NPY_NO_EXPORT  PyArray_Descr * PyArray_GetDefaultDescr \
+       (PyArray_DTypeMeta *);
+NPY_NO_EXPORT  int PyArrayInitDTypeMeta_FromSpec \
+       (PyArray_DTypeMeta *, PyArrayDTypeMeta_Spec *);
+NPY_NO_EXPORT  PyArray_DTypeMeta * PyArray_CommonDType \
+       (PyArray_DTypeMeta *, PyArray_DTypeMeta *);
+NPY_NO_EXPORT  PyArray_DTypeMeta * PyArray_PromoteDTypeSequence \
+       (npy_intp, PyArray_DTypeMeta **);
+NPY_NO_EXPORT  PyArray_ArrFuncs * _PyDataType_GetArrFuncs \
+       (const PyArray_Descr *);
+
+#else
+
+#if defined(PY_ARRAY_UNIQUE_SYMBOL)
+    #define PyArray_API PY_ARRAY_UNIQUE_SYMBOL
+    #define _NPY_VERSION_CONCAT_HELPER2(x, y) x ## y
+    #define _NPY_VERSION_CONCAT_HELPER(arg) \
+        _NPY_VERSION_CONCAT_HELPER2(arg, PyArray_RUNTIME_VERSION)
+    #define PyArray_RUNTIME_VERSION \
+        _NPY_VERSION_CONCAT_HELPER(PY_ARRAY_UNIQUE_SYMBOL)
+#endif
+
+/* By default do not export API in an .so (was never the case on windows) */
+#ifndef NPY_API_SYMBOL_ATTRIBUTE
+    #define NPY_API_SYMBOL_ATTRIBUTE NPY_VISIBILITY_HIDDEN
+#endif
+
+#if defined(NO_IMPORT) || defined(NO_IMPORT_ARRAY)
+extern NPY_API_SYMBOL_ATTRIBUTE void **PyArray_API;
+extern NPY_API_SYMBOL_ATTRIBUTE int PyArray_RUNTIME_VERSION;
+#else
+#if defined(PY_ARRAY_UNIQUE_SYMBOL)
+NPY_API_SYMBOL_ATTRIBUTE void **PyArray_API;
+NPY_API_SYMBOL_ATTRIBUTE int PyArray_RUNTIME_VERSION;
+#else
+static void **PyArray_API = NULL;
+static int PyArray_RUNTIME_VERSION = 0;
+#endif
+#endif
+
+#define PyArray_GetNDArrayCVersion \
+        (*(unsigned int (*)(void)) \
+    PyArray_API[0])
+#define PyArray_Type (*(PyTypeObject *)PyArray_API[2])
+#define PyArrayDescr_Type (*(PyTypeObject *)PyArray_API[3])
+#define PyArrayIter_Type (*(PyTypeObject *)PyArray_API[5])
+#define PyArrayMultiIter_Type (*(PyTypeObject *)PyArray_API[6])
+#define NPY_NUMUSERTYPES (*(int *)PyArray_API[7])
+#define PyBoolArrType_Type (*(PyTypeObject *)PyArray_API[8])
+#define _PyArrayScalar_BoolValues ((PyBoolScalarObject *)PyArray_API[9])
+#define PyGenericArrType_Type (*(PyTypeObject *)PyArray_API[10])
+#define PyNumberArrType_Type (*(PyTypeObject *)PyArray_API[11])
+#define PyIntegerArrType_Type (*(PyTypeObject *)PyArray_API[12])
+#define PySignedIntegerArrType_Type (*(PyTypeObject *)PyArray_API[13])
+#define PyUnsignedIntegerArrType_Type (*(PyTypeObject *)PyArray_API[14])
+#define PyInexactArrType_Type (*(PyTypeObject *)PyArray_API[15])
+#define PyFloatingArrType_Type (*(PyTypeObject *)PyArray_API[16])
+#define PyComplexFloatingArrType_Type (*(PyTypeObject *)PyArray_API[17])
+#define PyFlexibleArrType_Type (*(PyTypeObject *)PyArray_API[18])
+#define PyCharacterArrType_Type (*(PyTypeObject *)PyArray_API[19])
+#define PyByteArrType_Type (*(PyTypeObject *)PyArray_API[20])
+#define PyShortArrType_Type (*(PyTypeObject *)PyArray_API[21])
+#define PyIntArrType_Type (*(PyTypeObject *)PyArray_API[22])
+#define PyLongArrType_Type (*(PyTypeObject *)PyArray_API[23])
+#define PyLongLongArrType_Type (*(PyTypeObject *)PyArray_API[24])
+#define PyUByteArrType_Type (*(PyTypeObject *)PyArray_API[25])
+#define PyUShortArrType_Type (*(PyTypeObject *)PyArray_API[26])
+#define PyUIntArrType_Type (*(PyTypeObject *)PyArray_API[27])
+#define PyULongArrType_Type (*(PyTypeObject *)PyArray_API[28])
+#define PyULongLongArrType_Type (*(PyTypeObject *)PyArray_API[29])
+#define PyFloatArrType_Type (*(PyTypeObject *)PyArray_API[30])
+#define PyDoubleArrType_Type (*(PyTypeObject *)PyArray_API[31])
+#define PyLongDoubleArrType_Type (*(PyTypeObject *)PyArray_API[32])
+#define PyCFloatArrType_Type (*(PyTypeObject *)PyArray_API[33])
+#define PyCDoubleArrType_Type (*(PyTypeObject *)PyArray_API[34])
+#define PyCLongDoubleArrType_Type (*(PyTypeObject *)PyArray_API[35])
+#define PyObjectArrType_Type (*(PyTypeObject *)PyArray_API[36])
+#define PyStringArrType_Type (*(PyTypeObject *)PyArray_API[37])
+#define PyUnicodeArrType_Type (*(PyTypeObject *)PyArray_API[38])
+#define PyVoidArrType_Type (*(PyTypeObject *)PyArray_API[39])
+#define PyArray_INCREF \
+        (*(int (*)(PyArrayObject *)) \
+    PyArray_API[42])
+#define PyArray_XDECREF \
+        (*(int (*)(PyArrayObject *)) \
+    PyArray_API[43])
+#define PyArray_SetStringFunction \
+        (*(void (*)(PyObject *, int)) \
+    PyArray_API[44])
+#define PyArray_DescrFromType \
+        (*(PyArray_Descr * (*)(int)) \
+    PyArray_API[45])
+#define PyArray_TypeObjectFromType \
+        (*(PyObject * (*)(int)) \
+    PyArray_API[46])
+#define PyArray_Zero \
+        (*(char * (*)(PyArrayObject *)) \
+    PyArray_API[47])
+#define PyArray_One \
+        (*(char * (*)(PyArrayObject *)) \
+    PyArray_API[48])
+#define PyArray_CastToType \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, int)) \
+    PyArray_API[49])
+#define PyArray_CopyInto \
+        (*(int (*)(PyArrayObject *, PyArrayObject *)) \
+    PyArray_API[50])
+#define PyArray_CopyAnyInto \
+        (*(int (*)(PyArrayObject *, PyArrayObject *)) \
+    PyArray_API[51])
+#define PyArray_CanCastSafely \
+        (*(int (*)(int, int)) \
+    PyArray_API[52])
+#define PyArray_CanCastTo \
+        (*(npy_bool (*)(PyArray_Descr *, PyArray_Descr *)) \
+    PyArray_API[53])
+#define PyArray_ObjectType \
+        (*(int (*)(PyObject *, int)) \
+    PyArray_API[54])
+#define PyArray_DescrFromObject \
+        (*(PyArray_Descr * (*)(PyObject *, PyArray_Descr *)) \
+    PyArray_API[55])
+#define PyArray_ConvertToCommonType \
+        (*(PyArrayObject ** (*)(PyObject *, int *)) \
+    PyArray_API[56])
+#define PyArray_DescrFromScalar \
+        (*(PyArray_Descr * (*)(PyObject *)) \
+    PyArray_API[57])
+#define PyArray_DescrFromTypeObject \
+        (*(PyArray_Descr * (*)(PyObject *)) \
+    PyArray_API[58])
+#define PyArray_Size \
+        (*(npy_intp (*)(PyObject *)) \
+    PyArray_API[59])
+#define PyArray_Scalar \
+        (*(PyObject * (*)(void *, PyArray_Descr *, PyObject *)) \
+    PyArray_API[60])
+#define PyArray_FromScalar \
+        (*(PyObject * (*)(PyObject *, PyArray_Descr *)) \
+    PyArray_API[61])
+#define PyArray_ScalarAsCtype \
+        (*(void (*)(PyObject *, void *)) \
+    PyArray_API[62])
+#define PyArray_CastScalarToCtype \
+        (*(int (*)(PyObject *, void *, PyArray_Descr *)) \
+    PyArray_API[63])
+#define PyArray_CastScalarDirect \
+        (*(int (*)(PyObject *, PyArray_Descr *, void *, int)) \
+    PyArray_API[64])
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyArray_Pack \
+        (*(int (*)(PyArray_Descr *, void *, PyObject *)) \
+    PyArray_API[65])
+#endif
+#define PyArray_FromAny \
+        (*(PyObject * (*)(PyObject *, PyArray_Descr *, int, int, int, PyObject *)) \
+    PyArray_API[69])
+#define PyArray_EnsureArray \
+        (*(PyObject * (*)(PyObject *)) \
+    PyArray_API[70])
+#define PyArray_EnsureAnyArray \
+        (*(PyObject * (*)(PyObject *)) \
+    PyArray_API[71])
+#define PyArray_FromFile \
+        (*(PyObject * (*)(FILE *, PyArray_Descr *, npy_intp, char *)) \
+    PyArray_API[72])
+#define PyArray_FromString \
+        (*(PyObject * (*)(char *, npy_intp, PyArray_Descr *, npy_intp, char *)) \
+    PyArray_API[73])
+#define PyArray_FromBuffer \
+        (*(PyObject * (*)(PyObject *, PyArray_Descr *, npy_intp, npy_intp)) \
+    PyArray_API[74])
+#define PyArray_FromIter \
+        (*(PyObject * (*)(PyObject *, PyArray_Descr *, npy_intp)) \
+    PyArray_API[75])
+#define PyArray_Return \
+        (*(PyObject * (*)(PyArrayObject *)) \
+    PyArray_API[76])
+#define PyArray_GetField \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, int)) \
+    PyArray_API[77])
+#define PyArray_SetField \
+        (*(int (*)(PyArrayObject *, PyArray_Descr *, int, PyObject *)) \
+    PyArray_API[78])
+#define PyArray_Byteswap \
+        (*(PyObject * (*)(PyArrayObject *, npy_bool)) \
+    PyArray_API[79])
+#define PyArray_Resize \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Dims *, int, NPY_ORDER NPY_UNUSED(order))) \
+    PyArray_API[80])
+#define PyArray_CopyObject \
+        (*(int (*)(PyArrayObject *, PyObject *)) \
+    PyArray_API[84])
+#define PyArray_NewCopy \
+        (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \
+    PyArray_API[85])
+#define PyArray_ToList \
+        (*(PyObject * (*)(PyArrayObject *)) \
+    PyArray_API[86])
+#define PyArray_ToString \
+        (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \
+    PyArray_API[87])
+#define PyArray_ToFile \
+        (*(int (*)(PyArrayObject *, FILE *, char *, char *)) \
+    PyArray_API[88])
+#define PyArray_Dump \
+        (*(int (*)(PyObject *, PyObject *, int)) \
+    PyArray_API[89])
+#define PyArray_Dumps \
+        (*(PyObject * (*)(PyObject *, int)) \
+    PyArray_API[90])
+#define PyArray_ValidType \
+        (*(int (*)(int)) \
+    PyArray_API[91])
+#define PyArray_UpdateFlags \
+        (*(void (*)(PyArrayObject *, int)) \
+    PyArray_API[92])
+#define PyArray_New \
+        (*(PyObject * (*)(PyTypeObject *, int, npy_intp const *, int, npy_intp const *, void *, int, int, PyObject *)) \
+    PyArray_API[93])
+#define PyArray_NewFromDescr \
+        (*(PyObject * (*)(PyTypeObject *, PyArray_Descr *, int, npy_intp const *, npy_intp const *, void *, int, PyObject *)) \
+    PyArray_API[94])
+#define PyArray_DescrNew \
+        (*(PyArray_Descr * (*)(PyArray_Descr *)) \
+    PyArray_API[95])
+#define PyArray_DescrNewFromType \
+        (*(PyArray_Descr * (*)(int)) \
+    PyArray_API[96])
+#define PyArray_GetPriority \
+        (*(double (*)(PyObject *, double)) \
+    PyArray_API[97])
+#define PyArray_IterNew \
+        (*(PyObject * (*)(PyObject *)) \
+    PyArray_API[98])
+#define PyArray_MultiIterNew \
+        (*(PyObject* (*)(int, ...)) \
+    PyArray_API[99])
+#define PyArray_PyIntAsInt \
+        (*(int (*)(PyObject *)) \
+    PyArray_API[100])
+#define PyArray_PyIntAsIntp \
+        (*(npy_intp (*)(PyObject *)) \
+    PyArray_API[101])
+#define PyArray_Broadcast \
+        (*(int (*)(PyArrayMultiIterObject *)) \
+    PyArray_API[102])
+#define PyArray_FillWithScalar \
+        (*(int (*)(PyArrayObject *, PyObject *)) \
+    PyArray_API[104])
+#define PyArray_CheckStrides \
+        (*(npy_bool (*)(int, int, npy_intp, npy_intp, npy_intp const *, npy_intp const *)) \
+    PyArray_API[105])
+#define PyArray_DescrNewByteorder \
+        (*(PyArray_Descr * (*)(PyArray_Descr *, char)) \
+    PyArray_API[106])
+#define PyArray_IterAllButAxis \
+        (*(PyObject * (*)(PyObject *, int *)) \
+    PyArray_API[107])
+#define PyArray_CheckFromAny \
+        (*(PyObject * (*)(PyObject *, PyArray_Descr *, int, int, int, PyObject *)) \
+    PyArray_API[108])
+#define PyArray_FromArray \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, int)) \
+    PyArray_API[109])
+#define PyArray_FromInterface \
+        (*(PyObject * (*)(PyObject *)) \
+    PyArray_API[110])
+#define PyArray_FromStructInterface \
+        (*(PyObject * (*)(PyObject *)) \
+    PyArray_API[111])
+#define PyArray_FromArrayAttr \
+        (*(PyObject * (*)(PyObject *, PyArray_Descr *, PyObject *)) \
+    PyArray_API[112])
+#define PyArray_ScalarKind \
+        (*(NPY_SCALARKIND (*)(int, PyArrayObject **)) \
+    PyArray_API[113])
+#define PyArray_CanCoerceScalar \
+        (*(int (*)(int, int, NPY_SCALARKIND)) \
+    PyArray_API[114])
+#define PyArray_CanCastScalar \
+        (*(npy_bool (*)(PyTypeObject *, PyTypeObject *)) \
+    PyArray_API[116])
+#define PyArray_RemoveSmallest \
+        (*(int (*)(PyArrayMultiIterObject *)) \
+    PyArray_API[118])
+#define PyArray_ElementStrides \
+        (*(int (*)(PyObject *)) \
+    PyArray_API[119])
+#define PyArray_Item_INCREF \
+        (*(void (*)(char *, PyArray_Descr *)) \
+    PyArray_API[120])
+#define PyArray_Item_XDECREF \
+        (*(void (*)(char *, PyArray_Descr *)) \
+    PyArray_API[121])
+#define PyArray_Transpose \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Dims *)) \
+    PyArray_API[123])
+#define PyArray_TakeFrom \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *, int, PyArrayObject *, NPY_CLIPMODE)) \
+    PyArray_API[124])
+#define PyArray_PutTo \
+        (*(PyObject * (*)(PyArrayObject *, PyObject*, PyObject *, NPY_CLIPMODE)) \
+    PyArray_API[125])
+#define PyArray_PutMask \
+        (*(PyObject * (*)(PyArrayObject *, PyObject*, PyObject*)) \
+    PyArray_API[126])
+#define PyArray_Repeat \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *, int)) \
+    PyArray_API[127])
+#define PyArray_Choose \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *, PyArrayObject *, NPY_CLIPMODE)) \
+    PyArray_API[128])
+#define PyArray_Sort \
+        (*(int (*)(PyArrayObject *, int, NPY_SORTKIND)) \
+    PyArray_API[129])
+#define PyArray_ArgSort \
+        (*(PyObject * (*)(PyArrayObject *, int, NPY_SORTKIND)) \
+    PyArray_API[130])
+#define PyArray_SearchSorted \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *, NPY_SEARCHSIDE, PyObject *)) \
+    PyArray_API[131])
+#define PyArray_ArgMax \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[132])
+#define PyArray_ArgMin \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[133])
+#define PyArray_Reshape \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *)) \
+    PyArray_API[134])
+#define PyArray_Newshape \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Dims *, NPY_ORDER)) \
+    PyArray_API[135])
+#define PyArray_Squeeze \
+        (*(PyObject * (*)(PyArrayObject *)) \
+    PyArray_API[136])
+#define PyArray_View \
+        (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, PyTypeObject *)) \
+    PyArray_API[137])
+#define PyArray_SwapAxes \
+        (*(PyObject * (*)(PyArrayObject *, int, int)) \
+    PyArray_API[138])
+#define PyArray_Max \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[139])
+#define PyArray_Min \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[140])
+#define PyArray_Ptp \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[141])
+#define PyArray_Mean \
+        (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \
+    PyArray_API[142])
+#define PyArray_Trace \
+        (*(PyObject * (*)(PyArrayObject *, int, int, int, int, PyArrayObject *)) \
+    PyArray_API[143])
+#define PyArray_Diagonal \
+        (*(PyObject * (*)(PyArrayObject *, int, int, int)) \
+    PyArray_API[144])
+#define PyArray_Clip \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *, PyObject *, PyArrayObject *)) \
+    PyArray_API[145])
+#define PyArray_Conjugate \
+        (*(PyObject * (*)(PyArrayObject *, PyArrayObject *)) \
+    PyArray_API[146])
+#define PyArray_Nonzero \
+        (*(PyObject * (*)(PyArrayObject *)) \
+    PyArray_API[147])
+#define PyArray_Std \
+        (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *, int)) \
+    PyArray_API[148])
+#define PyArray_Sum \
+        (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \
+    PyArray_API[149])
+#define PyArray_CumSum \
+        (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \
+    PyArray_API[150])
+#define PyArray_Prod \
+        (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \
+    PyArray_API[151])
+#define PyArray_CumProd \
+        (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \
+    PyArray_API[152])
+#define PyArray_All \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[153])
+#define PyArray_Any \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[154])
+#define PyArray_Compress \
+        (*(PyObject * (*)(PyArrayObject *, PyObject *, int, PyArrayObject *)) \
+    PyArray_API[155])
+#define PyArray_Flatten \
+        (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \
+    PyArray_API[156])
+#define PyArray_Ravel \
+        (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \
+    PyArray_API[157])
+#define PyArray_MultiplyList \
+        (*(npy_intp (*)(npy_intp const *, int)) \
+    PyArray_API[158])
+#define PyArray_MultiplyIntList \
+        (*(int (*)(int const *, int)) \
+    PyArray_API[159])
+#define PyArray_GetPtr \
+        (*(void * (*)(PyArrayObject *, npy_intp const*)) \
+    PyArray_API[160])
+#define PyArray_CompareLists \
+        (*(int (*)(npy_intp const *, npy_intp const *, int)) \
+    PyArray_API[161])
+#define PyArray_AsCArray \
+        (*(int (*)(PyObject **, void *, npy_intp *, int, PyArray_Descr*)) \
+    PyArray_API[162])
+#define PyArray_Free \
+        (*(int (*)(PyObject *, void *)) \
+    PyArray_API[165])
+#define PyArray_Converter \
+        (*(int (*)(PyObject *, PyObject **)) \
+    PyArray_API[166])
+#define PyArray_IntpFromSequence \
+        (*(int (*)(PyObject *, npy_intp *, int)) \
+    PyArray_API[167])
+#define PyArray_Concatenate \
+        (*(PyObject * (*)(PyObject *, int)) \
+    PyArray_API[168])
+#define PyArray_InnerProduct \
+        (*(PyObject * (*)(PyObject *, PyObject *)) \
+    PyArray_API[169])
+#define PyArray_MatrixProduct \
+        (*(PyObject * (*)(PyObject *, PyObject *)) \
+    PyArray_API[170])
+#define PyArray_Correlate \
+        (*(PyObject * (*)(PyObject *, PyObject *, int)) \
+    PyArray_API[172])
+#define PyArray_DescrConverter \
+        (*(int (*)(PyObject *, PyArray_Descr **)) \
+    PyArray_API[174])
+#define PyArray_DescrConverter2 \
+        (*(int (*)(PyObject *, PyArray_Descr **)) \
+    PyArray_API[175])
+#define PyArray_IntpConverter \
+        (*(int (*)(PyObject *, PyArray_Dims *)) \
+    PyArray_API[176])
+#define PyArray_BufferConverter \
+        (*(int (*)(PyObject *, PyArray_Chunk *)) \
+    PyArray_API[177])
+#define PyArray_AxisConverter \
+        (*(int (*)(PyObject *, int *)) \
+    PyArray_API[178])
+#define PyArray_BoolConverter \
+        (*(int (*)(PyObject *, npy_bool *)) \
+    PyArray_API[179])
+#define PyArray_ByteorderConverter \
+        (*(int (*)(PyObject *, char *)) \
+    PyArray_API[180])
+#define PyArray_OrderConverter \
+        (*(int (*)(PyObject *, NPY_ORDER *)) \
+    PyArray_API[181])
+#define PyArray_EquivTypes \
+        (*(unsigned char (*)(PyArray_Descr *, PyArray_Descr *)) \
+    PyArray_API[182])
+#define PyArray_Zeros \
+        (*(PyObject * (*)(int, npy_intp const *, PyArray_Descr *, int)) \
+    PyArray_API[183])
+#define PyArray_Empty \
+        (*(PyObject * (*)(int, npy_intp const *, PyArray_Descr *, int)) \
+    PyArray_API[184])
+#define PyArray_Where \
+        (*(PyObject * (*)(PyObject *, PyObject *, PyObject *)) \
+    PyArray_API[185])
+#define PyArray_Arange \
+        (*(PyObject * (*)(double, double, double, int)) \
+    PyArray_API[186])
+#define PyArray_ArangeObj \
+        (*(PyObject * (*)(PyObject *, PyObject *, PyObject *, PyArray_Descr *)) \
+    PyArray_API[187])
+#define PyArray_SortkindConverter \
+        (*(int (*)(PyObject *, NPY_SORTKIND *)) \
+    PyArray_API[188])
+#define PyArray_LexSort \
+        (*(PyObject * (*)(PyObject *, int)) \
+    PyArray_API[189])
+#define PyArray_Round \
+        (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \
+    PyArray_API[190])
+#define PyArray_EquivTypenums \
+        (*(unsigned char (*)(int, int)) \
+    PyArray_API[191])
+#define PyArray_RegisterDataType \
+        (*(int (*)(PyArray_DescrProto *)) \
+    PyArray_API[192])
+#define PyArray_RegisterCastFunc \
+        (*(int (*)(PyArray_Descr *, int, PyArray_VectorUnaryFunc *)) \
+    PyArray_API[193])
+#define PyArray_RegisterCanCast \
+        (*(int (*)(PyArray_Descr *, int, NPY_SCALARKIND)) \
+    PyArray_API[194])
+#define PyArray_InitArrFuncs \
+        (*(void (*)(PyArray_ArrFuncs *)) \
+    PyArray_API[195])
+#define PyArray_IntTupleFromIntp \
+        (*(PyObject * (*)(int, npy_intp const *)) \
+    PyArray_API[196])
+#define PyArray_ClipmodeConverter \
+        (*(int (*)(PyObject *, NPY_CLIPMODE *)) \
+    PyArray_API[198])
+#define PyArray_OutputConverter \
+        (*(int (*)(PyObject *, PyArrayObject **)) \
+    PyArray_API[199])
+#define PyArray_BroadcastToShape \
+        (*(PyObject * (*)(PyObject *, npy_intp *, int)) \
+    PyArray_API[200])
+#define PyArray_DescrAlignConverter \
+        (*(int (*)(PyObject *, PyArray_Descr **)) \
+    PyArray_API[203])
+#define PyArray_DescrAlignConverter2 \
+        (*(int (*)(PyObject *, PyArray_Descr **)) \
+    PyArray_API[204])
+#define PyArray_SearchsideConverter \
+        (*(int (*)(PyObject *, void *)) \
+    PyArray_API[205])
+#define PyArray_CheckAxis \
+        (*(PyObject * (*)(PyArrayObject *, int *, int)) \
+    PyArray_API[206])
+#define PyArray_OverflowMultiplyList \
+        (*(npy_intp (*)(npy_intp const *, int)) \
+    PyArray_API[207])
+#define PyArray_MultiIterFromObjects \
+        (*(PyObject* (*)(PyObject **, int, int, ...)) \
+    PyArray_API[209])
+#define PyArray_GetEndianness \
+        (*(int (*)(void)) \
+    PyArray_API[210])
+#define PyArray_GetNDArrayCFeatureVersion \
+        (*(unsigned int (*)(void)) \
+    PyArray_API[211])
+#define PyArray_Correlate2 \
+        (*(PyObject * (*)(PyObject *, PyObject *, int)) \
+    PyArray_API[212])
+#define PyArray_NeighborhoodIterNew \
+        (*(PyObject* (*)(PyArrayIterObject *, const npy_intp *, int, PyArrayObject*)) \
+    PyArray_API[213])
+#define PyTimeIntegerArrType_Type (*(PyTypeObject *)PyArray_API[214])
+#define PyDatetimeArrType_Type (*(PyTypeObject *)PyArray_API[215])
+#define PyTimedeltaArrType_Type (*(PyTypeObject *)PyArray_API[216])
+#define PyHalfArrType_Type (*(PyTypeObject *)PyArray_API[217])
+#define NpyIter_Type (*(PyTypeObject *)PyArray_API[218])
+
+#if NPY_FEATURE_VERSION >= NPY_2_3_API_VERSION
+#define NpyIter_GetTransferFlags \
+        (*(NPY_ARRAYMETHOD_FLAGS (*)(NpyIter *)) \
+    PyArray_API[223])
+#endif
+#define NpyIter_New \
+        (*(NpyIter * (*)(PyArrayObject *, npy_uint32, NPY_ORDER, NPY_CASTING, PyArray_Descr*)) \
+    PyArray_API[224])
+#define NpyIter_MultiNew \
+        (*(NpyIter * (*)(int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **)) \
+    PyArray_API[225])
+#define NpyIter_AdvancedNew \
+        (*(NpyIter * (*)(int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **, int, int **, npy_intp *, npy_intp)) \
+    PyArray_API[226])
+#define NpyIter_Copy \
+        (*(NpyIter * (*)(NpyIter *)) \
+    PyArray_API[227])
+#define NpyIter_Deallocate \
+        (*(int (*)(NpyIter *)) \
+    PyArray_API[228])
+#define NpyIter_HasDelayedBufAlloc \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[229])
+#define NpyIter_HasExternalLoop \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[230])
+#define NpyIter_EnableExternalLoop \
+        (*(int (*)(NpyIter *)) \
+    PyArray_API[231])
+#define NpyIter_GetInnerStrideArray \
+        (*(npy_intp * (*)(NpyIter *)) \
+    PyArray_API[232])
+#define NpyIter_GetInnerLoopSizePtr \
+        (*(npy_intp * (*)(NpyIter *)) \
+    PyArray_API[233])
+#define NpyIter_Reset \
+        (*(int (*)(NpyIter *, char **)) \
+    PyArray_API[234])
+#define NpyIter_ResetBasePointers \
+        (*(int (*)(NpyIter *, char **, char **)) \
+    PyArray_API[235])
+#define NpyIter_ResetToIterIndexRange \
+        (*(int (*)(NpyIter *, npy_intp, npy_intp, char **)) \
+    PyArray_API[236])
+#define NpyIter_GetNDim \
+        (*(int (*)(NpyIter *)) \
+    PyArray_API[237])
+#define NpyIter_GetNOp \
+        (*(int (*)(NpyIter *)) \
+    PyArray_API[238])
+#define NpyIter_GetIterNext \
+        (*(NpyIter_IterNextFunc * (*)(NpyIter *, char **)) \
+    PyArray_API[239])
+#define NpyIter_GetIterSize \
+        (*(npy_intp (*)(NpyIter *)) \
+    PyArray_API[240])
+#define NpyIter_GetIterIndexRange \
+        (*(void (*)(NpyIter *, npy_intp *, npy_intp *)) \
+    PyArray_API[241])
+#define NpyIter_GetIterIndex \
+        (*(npy_intp (*)(NpyIter *)) \
+    PyArray_API[242])
+#define NpyIter_GotoIterIndex \
+        (*(int (*)(NpyIter *, npy_intp)) \
+    PyArray_API[243])
+#define NpyIter_HasMultiIndex \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[244])
+#define NpyIter_GetShape \
+        (*(int (*)(NpyIter *, npy_intp *)) \
+    PyArray_API[245])
+#define NpyIter_GetGetMultiIndex \
+        (*(NpyIter_GetMultiIndexFunc * (*)(NpyIter *, char **)) \
+    PyArray_API[246])
+#define NpyIter_GotoMultiIndex \
+        (*(int (*)(NpyIter *, npy_intp const *)) \
+    PyArray_API[247])
+#define NpyIter_RemoveMultiIndex \
+        (*(int (*)(NpyIter *)) \
+    PyArray_API[248])
+#define NpyIter_HasIndex \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[249])
+#define NpyIter_IsBuffered \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[250])
+#define NpyIter_IsGrowInner \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[251])
+#define NpyIter_GetBufferSize \
+        (*(npy_intp (*)(NpyIter *)) \
+    PyArray_API[252])
+#define NpyIter_GetIndexPtr \
+        (*(npy_intp * (*)(NpyIter *)) \
+    PyArray_API[253])
+#define NpyIter_GotoIndex \
+        (*(int (*)(NpyIter *, npy_intp)) \
+    PyArray_API[254])
+#define NpyIter_GetDataPtrArray \
+        (*(char ** (*)(NpyIter *)) \
+    PyArray_API[255])
+#define NpyIter_GetDescrArray \
+        (*(PyArray_Descr ** (*)(NpyIter *)) \
+    PyArray_API[256])
+#define NpyIter_GetOperandArray \
+        (*(PyArrayObject ** (*)(NpyIter *)) \
+    PyArray_API[257])
+#define NpyIter_GetIterView \
+        (*(PyArrayObject * (*)(NpyIter *, npy_intp)) \
+    PyArray_API[258])
+#define NpyIter_GetReadFlags \
+        (*(void (*)(NpyIter *, char *)) \
+    PyArray_API[259])
+#define NpyIter_GetWriteFlags \
+        (*(void (*)(NpyIter *, char *)) \
+    PyArray_API[260])
+#define NpyIter_DebugPrint \
+        (*(void (*)(NpyIter *)) \
+    PyArray_API[261])
+#define NpyIter_IterationNeedsAPI \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[262])
+#define NpyIter_GetInnerFixedStrideArray \
+        (*(void (*)(NpyIter *, npy_intp *)) \
+    PyArray_API[263])
+#define NpyIter_RemoveAxis \
+        (*(int (*)(NpyIter *, int)) \
+    PyArray_API[264])
+#define NpyIter_GetAxisStrideArray \
+        (*(npy_intp * (*)(NpyIter *, int)) \
+    PyArray_API[265])
+#define NpyIter_RequiresBuffering \
+        (*(npy_bool (*)(NpyIter *)) \
+    PyArray_API[266])
+#define NpyIter_GetInitialDataPtrArray \
+        (*(char ** (*)(NpyIter *)) \
+    PyArray_API[267])
+#define NpyIter_CreateCompatibleStrides \
+        (*(int (*)(NpyIter *, npy_intp, npy_intp *)) \
+    PyArray_API[268])
+#define PyArray_CastingConverter \
+        (*(int (*)(PyObject *, NPY_CASTING *)) \
+    PyArray_API[269])
+#define PyArray_CountNonzero \
+        (*(npy_intp (*)(PyArrayObject *)) \
+    PyArray_API[270])
+#define PyArray_PromoteTypes \
+        (*(PyArray_Descr * (*)(PyArray_Descr *, PyArray_Descr *)) \
+    PyArray_API[271])
+#define PyArray_MinScalarType \
+        (*(PyArray_Descr * (*)(PyArrayObject *)) \
+    PyArray_API[272])
+#define PyArray_ResultType \
+        (*(PyArray_Descr * (*)(npy_intp, PyArrayObject *arrs[], npy_intp, PyArray_Descr *descrs[])) \
+    PyArray_API[273])
+#define PyArray_CanCastArrayTo \
+        (*(npy_bool (*)(PyArrayObject *, PyArray_Descr *, NPY_CASTING)) \
+    PyArray_API[274])
+#define PyArray_CanCastTypeTo \
+        (*(npy_bool (*)(PyArray_Descr *, PyArray_Descr *, NPY_CASTING)) \
+    PyArray_API[275])
+#define PyArray_EinsteinSum \
+        (*(PyArrayObject * (*)(char *, npy_intp, PyArrayObject **, PyArray_Descr *, NPY_ORDER, NPY_CASTING, PyArrayObject *)) \
+    PyArray_API[276])
+#define PyArray_NewLikeArray \
+        (*(PyObject * (*)(PyArrayObject *, NPY_ORDER, PyArray_Descr *, int)) \
+    PyArray_API[277])
+#define PyArray_ConvertClipmodeSequence \
+        (*(int (*)(PyObject *, NPY_CLIPMODE *, int)) \
+    PyArray_API[279])
+#define PyArray_MatrixProduct2 \
+        (*(PyObject * (*)(PyObject *, PyObject *, PyArrayObject*)) \
+    PyArray_API[280])
+#define NpyIter_IsFirstVisit \
+        (*(npy_bool (*)(NpyIter *, int)) \
+    PyArray_API[281])
+#define PyArray_SetBaseObject \
+        (*(int (*)(PyArrayObject *, PyObject *)) \
+    PyArray_API[282])
+#define PyArray_CreateSortedStridePerm \
+        (*(void (*)(int, npy_intp const *, npy_stride_sort_item *)) \
+    PyArray_API[283])
+#define PyArray_RemoveAxesInPlace \
+        (*(void (*)(PyArrayObject *, const npy_bool *)) \
+    PyArray_API[284])
+#define PyArray_DebugPrint \
+        (*(void (*)(PyArrayObject *)) \
+    PyArray_API[285])
+#define PyArray_FailUnlessWriteable \
+        (*(int (*)(PyArrayObject *, const char *)) \
+    PyArray_API[286])
+#define PyArray_SetUpdateIfCopyBase \
+        (*(int (*)(PyArrayObject *, PyArrayObject *)) \
+    PyArray_API[287])
+#define PyDataMem_NEW \
+        (*(void * (*)(size_t)) \
+    PyArray_API[288])
+#define PyDataMem_FREE \
+        (*(void (*)(void *)) \
+    PyArray_API[289])
+#define PyDataMem_RENEW \
+        (*(void * (*)(void *, size_t)) \
+    PyArray_API[290])
+#define NPY_DEFAULT_ASSIGN_CASTING (*(NPY_CASTING *)PyArray_API[292])
+#define PyArray_Partition \
+        (*(int (*)(PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND)) \
+    PyArray_API[296])
+#define PyArray_ArgPartition \
+        (*(PyObject * (*)(PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND)) \
+    PyArray_API[297])
+#define PyArray_SelectkindConverter \
+        (*(int (*)(PyObject *, NPY_SELECTKIND *)) \
+    PyArray_API[298])
+#define PyDataMem_NEW_ZEROED \
+        (*(void * (*)(size_t, size_t)) \
+    PyArray_API[299])
+#define PyArray_CheckAnyScalarExact \
+        (*(int (*)(PyObject *)) \
+    PyArray_API[300])
+#define PyArray_ResolveWritebackIfCopy \
+        (*(int (*)(PyArrayObject *)) \
+    PyArray_API[302])
+#define PyArray_SetWritebackIfCopyBase \
+        (*(int (*)(PyArrayObject *, PyArrayObject *)) \
+    PyArray_API[303])
+
+#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION
+#define PyDataMem_SetHandler \
+        (*(PyObject * (*)(PyObject *)) \
+    PyArray_API[304])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION
+#define PyDataMem_GetHandler \
+        (*(PyObject * (*)(void)) \
+    PyArray_API[305])
+#endif
+#define PyDataMem_DefaultHandler (*(PyObject* *)PyArray_API[306])
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyDatetime_ConvertDatetime64ToDatetimeStruct \
+        (*(int (*)(PyArray_DatetimeMetaData *, npy_datetime, npy_datetimestruct *)) \
+    PyArray_API[307])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyDatetime_ConvertDatetimeStructToDatetime64 \
+        (*(int (*)(PyArray_DatetimeMetaData *, const npy_datetimestruct *, npy_datetime *)) \
+    PyArray_API[308])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyDatetime_ConvertPyDateTimeToDatetimeStruct \
+        (*(int (*)(PyObject *, npy_datetimestruct *, NPY_DATETIMEUNIT *, int)) \
+    PyArray_API[309])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyDatetime_GetDatetimeISO8601StrLen \
+        (*(int (*)(int, NPY_DATETIMEUNIT)) \
+    PyArray_API[310])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyDatetime_MakeISO8601Datetime \
+        (*(int (*)(npy_datetimestruct *, char *, npy_intp, int, int, NPY_DATETIMEUNIT, int, NPY_CASTING)) \
+    PyArray_API[311])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyDatetime_ParseISO8601Datetime \
+        (*(int (*)(char const *, Py_ssize_t, NPY_DATETIMEUNIT, NPY_CASTING, npy_datetimestruct *, NPY_DATETIMEUNIT *, npy_bool *)) \
+    PyArray_API[312])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_load \
+        (*(int (*)(npy_string_allocator *, const npy_packed_static_string *, npy_static_string *)) \
+    PyArray_API[313])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_pack \
+        (*(int (*)(npy_string_allocator *, npy_packed_static_string *, const char *, size_t)) \
+    PyArray_API[314])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_pack_null \
+        (*(int (*)(npy_string_allocator *, npy_packed_static_string *)) \
+    PyArray_API[315])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_acquire_allocator \
+        (*(npy_string_allocator * (*)(const PyArray_StringDTypeObject *)) \
+    PyArray_API[316])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_acquire_allocators \
+        (*(void (*)(size_t, PyArray_Descr *const descrs[], npy_string_allocator *allocators[])) \
+    PyArray_API[317])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_release_allocator \
+        (*(void (*)(npy_string_allocator *)) \
+    PyArray_API[318])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define NpyString_release_allocators \
+        (*(void (*)(size_t, npy_string_allocator *allocators[])) \
+    PyArray_API[319])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyArray_GetDefaultDescr \
+        (*(PyArray_Descr * (*)(PyArray_DTypeMeta *)) \
+    PyArray_API[361])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyArrayInitDTypeMeta_FromSpec \
+        (*(int (*)(PyArray_DTypeMeta *, PyArrayDTypeMeta_Spec *)) \
+    PyArray_API[362])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyArray_CommonDType \
+        (*(PyArray_DTypeMeta * (*)(PyArray_DTypeMeta *, PyArray_DTypeMeta *)) \
+    PyArray_API[363])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyArray_PromoteDTypeSequence \
+        (*(PyArray_DTypeMeta * (*)(npy_intp, PyArray_DTypeMeta **)) \
+    PyArray_API[364])
+#endif
+#define _PyDataType_GetArrFuncs \
+        (*(PyArray_ArrFuncs * (*)(const PyArray_Descr *)) \
+    PyArray_API[365])
+
+/*
+ * The DType classes are inconvenient for the Python generation so exposed
+ * manually in the header below  (may be moved).
+ */
+#include "numpy/_public_dtype_api_table.h"
+
+#if !defined(NO_IMPORT_ARRAY) && !defined(NO_IMPORT)
+static int
+_import_array(void)
+{
+  int st;
+  PyObject *numpy = PyImport_ImportModule("numpy._core._multiarray_umath");
+  PyObject *c_api;
+  if (numpy == NULL && PyErr_ExceptionMatches(PyExc_ModuleNotFoundError)) {
+    PyErr_Clear();
+    numpy = PyImport_ImportModule("numpy.core._multiarray_umath");
+  }
+
+  if (numpy == NULL) {
+      return -1;
+  }
+
+  c_api = PyObject_GetAttrString(numpy, "_ARRAY_API");
+  Py_DECREF(numpy);
+  if (c_api == NULL) {
+      return -1;
+  }
+
+  if (!PyCapsule_CheckExact(c_api)) {
+      PyErr_SetString(PyExc_RuntimeError, "_ARRAY_API is not PyCapsule object");
+      Py_DECREF(c_api);
+      return -1;
+  }
+  PyArray_API = (void **)PyCapsule_GetPointer(c_api, NULL);
+  Py_DECREF(c_api);
+  if (PyArray_API == NULL) {
+      PyErr_SetString(PyExc_RuntimeError, "_ARRAY_API is NULL pointer");
+      return -1;
+  }
+
+  /*
+   * On exceedingly few platforms these sizes may not match, in which case
+   * We do not support older NumPy versions at all.
+   */
+  if (sizeof(Py_ssize_t) != sizeof(Py_intptr_t) &&
+        PyArray_RUNTIME_VERSION < NPY_2_0_API_VERSION) {
+    PyErr_Format(PyExc_RuntimeError,
+        "module compiled against NumPy 2.0 but running on NumPy 1.x. "
+        "Unfortunately, this is not supported on niche platforms where "
+        "`sizeof(size_t) != sizeof(inptr_t)`.");
+  }
+  /*
+   * Perform runtime check of C API version.  As of now NumPy 2.0 is ABI
+   * backwards compatible (in the exposed feature subset!) for all practical
+   * purposes.
+   */
+  if (NPY_VERSION < PyArray_GetNDArrayCVersion()) {
+      PyErr_Format(PyExc_RuntimeError, "module compiled against "\
+             "ABI version 0x%x but this version of numpy is 0x%x", \
+             (int) NPY_VERSION, (int) PyArray_GetNDArrayCVersion());
+      return -1;
+  }
+  PyArray_RUNTIME_VERSION = (int)PyArray_GetNDArrayCFeatureVersion();
+  if (NPY_FEATURE_VERSION > PyArray_RUNTIME_VERSION) {
+      PyErr_Format(PyExc_RuntimeError,
+             "module was compiled against NumPy C-API version 0x%x "
+             "(NumPy " NPY_FEATURE_VERSION_STRING ") "
+             "but the running NumPy has C-API version 0x%x. "
+             "Check the section C-API incompatibility at the "
+             "Troubleshooting ImportError section at "
+             "https://numpy.org/devdocs/user/troubleshooting-importerror.html"
+             "#c-api-incompatibility "
+             "for indications on how to solve this problem.",
+             (int)NPY_FEATURE_VERSION, PyArray_RUNTIME_VERSION);
+      return -1;
+  }
+
+  /*
+   * Perform runtime check of endianness and check it matches the one set by
+   * the headers (npy_endian.h) as a safeguard
+   */
+  st = PyArray_GetEndianness();
+  if (st == NPY_CPU_UNKNOWN_ENDIAN) {
+      PyErr_SetString(PyExc_RuntimeError,
+                      "FATAL: module compiled as unknown endian");
+      return -1;
+  }
+#if NPY_BYTE_ORDER == NPY_BIG_ENDIAN
+  if (st != NPY_CPU_BIG) {
+      PyErr_SetString(PyExc_RuntimeError,
+                      "FATAL: module compiled as big endian, but "
+                      "detected different endianness at runtime");
+      return -1;
+  }
+#elif NPY_BYTE_ORDER == NPY_LITTLE_ENDIAN
+  if (st != NPY_CPU_LITTLE) {
+      PyErr_SetString(PyExc_RuntimeError,
+                      "FATAL: module compiled as little endian, but "
+                      "detected different endianness at runtime");
+      return -1;
+  }
+#endif
+
+  return 0;
+}
+
+#if (SWIG_VERSION < 0x040400)
+#define _RETURN_VALUE NULL
+#else
+#define _RETURN_VALUE 0
+#endif
+
+#define import_array() { \
+  if (_import_array() < 0) { \
+    PyErr_Print(); \
+    PyErr_SetString( \
+        PyExc_ImportError, \
+        "numpy._core.multiarray failed to import" \
+    ); \
+    return _RETURN_VALUE; \
+  } \
+}
+
+#define import_array1(ret) { \
+  if (_import_array() < 0) { \
+    PyErr_Print(); \
+    PyErr_SetString( \
+        PyExc_ImportError, \
+        "numpy._core.multiarray failed to import" \
+    ); \
+    return ret; \
+  } \
+}
+
+#define import_array2(msg, ret) { \
+  if (_import_array() < 0) { \
+    PyErr_Print(); \
+    PyErr_SetString(PyExc_ImportError, msg); \
+    return ret; \
+  } \
+}
+
+#endif
+
+#endif
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__ufunc_api.c b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__ufunc_api.c
new file mode 100644
index 0000000000000000000000000000000000000000..b56b62cdbf13d01a47d3e3e75792fe33a73d10d8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__ufunc_api.c
@@ -0,0 +1,55 @@
+
+/* These pointers will be stored in the C-object for use in other
+    extension modules
+*/
+
+void *PyUFunc_API[] = {
+        (void *) &PyUFunc_Type,
+        (void *) PyUFunc_FromFuncAndData,
+        (void *) PyUFunc_RegisterLoopForType,
+        NULL,
+        (void *) PyUFunc_f_f_As_d_d,
+        (void *) PyUFunc_d_d,
+        (void *) PyUFunc_f_f,
+        (void *) PyUFunc_g_g,
+        (void *) PyUFunc_F_F_As_D_D,
+        (void *) PyUFunc_F_F,
+        (void *) PyUFunc_D_D,
+        (void *) PyUFunc_G_G,
+        (void *) PyUFunc_O_O,
+        (void *) PyUFunc_ff_f_As_dd_d,
+        (void *) PyUFunc_ff_f,
+        (void *) PyUFunc_dd_d,
+        (void *) PyUFunc_gg_g,
+        (void *) PyUFunc_FF_F_As_DD_D,
+        (void *) PyUFunc_DD_D,
+        (void *) PyUFunc_FF_F,
+        (void *) PyUFunc_GG_G,
+        (void *) PyUFunc_OO_O,
+        (void *) PyUFunc_O_O_method,
+        (void *) PyUFunc_OO_O_method,
+        (void *) PyUFunc_On_Om,
+        NULL,
+        NULL,
+        (void *) PyUFunc_clearfperr,
+        (void *) PyUFunc_getfperr,
+        NULL,
+        (void *) PyUFunc_ReplaceLoopBySignature,
+        (void *) PyUFunc_FromFuncAndDataAndSignature,
+        NULL,
+        (void *) PyUFunc_e_e,
+        (void *) PyUFunc_e_e_As_f_f,
+        (void *) PyUFunc_e_e_As_d_d,
+        (void *) PyUFunc_ee_e,
+        (void *) PyUFunc_ee_e_As_ff_f,
+        (void *) PyUFunc_ee_e_As_dd_d,
+        (void *) PyUFunc_DefaultTypeResolver,
+        (void *) PyUFunc_ValidateCasting,
+        (void *) PyUFunc_RegisterLoopForDescr,
+        (void *) PyUFunc_FromFuncAndDataAndSignatureAndIdentity,
+        (void *) PyUFunc_AddLoopFromSpec,
+        (void *) PyUFunc_AddPromoter,
+        (void *) PyUFunc_AddWrappingLoop,
+        (void *) PyUFunc_GiveFloatingpointErrors,
+        (void *) PyUFunc_AddLoopsFromSpecs
+};
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__ufunc_api.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__ufunc_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..03ad25125e927f6779666a9e0d8d5446e86b1d33
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/__ufunc_api.h
@@ -0,0 +1,349 @@
+
+#ifdef _UMATHMODULE
+
+extern NPY_NO_EXPORT PyTypeObject PyUFunc_Type;
+
+extern NPY_NO_EXPORT PyTypeObject PyUFunc_Type;
+
+NPY_NO_EXPORT  PyObject * PyUFunc_FromFuncAndData \
+       (PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int);
+NPY_NO_EXPORT  int PyUFunc_RegisterLoopForType \
+       (PyUFuncObject *, int, PyUFuncGenericFunction, const int *, void *);
+NPY_NO_EXPORT  void PyUFunc_f_f_As_d_d \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_d_d \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_f_f \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_g_g \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_F_F_As_D_D \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_F_F \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_D_D \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_G_G \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_O_O \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_ff_f_As_dd_d \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_ff_f \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_dd_d \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_gg_g \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_FF_F_As_DD_D \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_DD_D \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_FF_F \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_GG_G \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_OO_O \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_O_O_method \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_OO_O_method \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_On_Om \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_clearfperr \
+       (void);
+NPY_NO_EXPORT  int PyUFunc_getfperr \
+       (void);
+NPY_NO_EXPORT  int PyUFunc_ReplaceLoopBySignature \
+       (PyUFuncObject *, PyUFuncGenericFunction, const int *, PyUFuncGenericFunction *);
+NPY_NO_EXPORT  PyObject * PyUFunc_FromFuncAndDataAndSignature \
+       (PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int, const char *);
+NPY_NO_EXPORT  void PyUFunc_e_e \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_e_e_As_f_f \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_e_e_As_d_d \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_ee_e \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_ee_e_As_ff_f \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  void PyUFunc_ee_e_As_dd_d \
+       (char **, npy_intp const *, npy_intp const *, void *);
+NPY_NO_EXPORT  int PyUFunc_DefaultTypeResolver \
+       (PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyObject *, PyArray_Descr **);
+NPY_NO_EXPORT  int PyUFunc_ValidateCasting \
+       (PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyArray_Descr *const *);
+NPY_NO_EXPORT  int PyUFunc_RegisterLoopForDescr \
+       (PyUFuncObject *, PyArray_Descr *, PyUFuncGenericFunction, PyArray_Descr **, void *);
+NPY_NO_EXPORT  PyObject * PyUFunc_FromFuncAndDataAndSignatureAndIdentity \
+       (PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, const int, const char *, PyObject *);
+NPY_NO_EXPORT  int PyUFunc_AddLoopFromSpec \
+       (PyObject *, PyArrayMethod_Spec *);
+NPY_NO_EXPORT  int PyUFunc_AddPromoter \
+       (PyObject *, PyObject *, PyObject *);
+NPY_NO_EXPORT  int PyUFunc_AddWrappingLoop \
+       (PyObject *, PyArray_DTypeMeta *new_dtypes[], PyArray_DTypeMeta *wrapped_dtypes[], PyArrayMethod_TranslateGivenDescriptors *, PyArrayMethod_TranslateLoopDescriptors *);
+NPY_NO_EXPORT  int PyUFunc_GiveFloatingpointErrors \
+       (const char *, int);
+NPY_NO_EXPORT  int PyUFunc_AddLoopsFromSpecs \
+       (PyUFunc_LoopSlot *);
+
+#else
+
+#if defined(PY_UFUNC_UNIQUE_SYMBOL)
+#define PyUFunc_API PY_UFUNC_UNIQUE_SYMBOL
+#endif
+
+/* By default do not export API in an .so (was never the case on windows) */
+#ifndef NPY_API_SYMBOL_ATTRIBUTE
+    #define NPY_API_SYMBOL_ATTRIBUTE NPY_VISIBILITY_HIDDEN
+#endif
+
+#if defined(NO_IMPORT) || defined(NO_IMPORT_UFUNC)
+extern NPY_API_SYMBOL_ATTRIBUTE void **PyUFunc_API;
+#else
+#if defined(PY_UFUNC_UNIQUE_SYMBOL)
+NPY_API_SYMBOL_ATTRIBUTE void **PyUFunc_API;
+#else
+static void **PyUFunc_API=NULL;
+#endif
+#endif
+
+#define PyUFunc_Type (*(PyTypeObject *)PyUFunc_API[0])
+#define PyUFunc_FromFuncAndData \
+        (*(PyObject * (*)(PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int)) \
+    PyUFunc_API[1])
+#define PyUFunc_RegisterLoopForType \
+        (*(int (*)(PyUFuncObject *, int, PyUFuncGenericFunction, const int *, void *)) \
+    PyUFunc_API[2])
+#define PyUFunc_f_f_As_d_d \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[4])
+#define PyUFunc_d_d \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[5])
+#define PyUFunc_f_f \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[6])
+#define PyUFunc_g_g \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[7])
+#define PyUFunc_F_F_As_D_D \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[8])
+#define PyUFunc_F_F \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[9])
+#define PyUFunc_D_D \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[10])
+#define PyUFunc_G_G \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[11])
+#define PyUFunc_O_O \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[12])
+#define PyUFunc_ff_f_As_dd_d \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[13])
+#define PyUFunc_ff_f \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[14])
+#define PyUFunc_dd_d \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[15])
+#define PyUFunc_gg_g \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[16])
+#define PyUFunc_FF_F_As_DD_D \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[17])
+#define PyUFunc_DD_D \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[18])
+#define PyUFunc_FF_F \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[19])
+#define PyUFunc_GG_G \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[20])
+#define PyUFunc_OO_O \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[21])
+#define PyUFunc_O_O_method \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[22])
+#define PyUFunc_OO_O_method \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[23])
+#define PyUFunc_On_Om \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[24])
+#define PyUFunc_clearfperr \
+        (*(void (*)(void)) \
+    PyUFunc_API[27])
+#define PyUFunc_getfperr \
+        (*(int (*)(void)) \
+    PyUFunc_API[28])
+#define PyUFunc_ReplaceLoopBySignature \
+        (*(int (*)(PyUFuncObject *, PyUFuncGenericFunction, const int *, PyUFuncGenericFunction *)) \
+    PyUFunc_API[30])
+#define PyUFunc_FromFuncAndDataAndSignature \
+        (*(PyObject * (*)(PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int, const char *)) \
+    PyUFunc_API[31])
+#define PyUFunc_e_e \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[33])
+#define PyUFunc_e_e_As_f_f \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[34])
+#define PyUFunc_e_e_As_d_d \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[35])
+#define PyUFunc_ee_e \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[36])
+#define PyUFunc_ee_e_As_ff_f \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[37])
+#define PyUFunc_ee_e_As_dd_d \
+        (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \
+    PyUFunc_API[38])
+#define PyUFunc_DefaultTypeResolver \
+        (*(int (*)(PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyObject *, PyArray_Descr **)) \
+    PyUFunc_API[39])
+#define PyUFunc_ValidateCasting \
+        (*(int (*)(PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyArray_Descr *const *)) \
+    PyUFunc_API[40])
+#define PyUFunc_RegisterLoopForDescr \
+        (*(int (*)(PyUFuncObject *, PyArray_Descr *, PyUFuncGenericFunction, PyArray_Descr **, void *)) \
+    PyUFunc_API[41])
+
+#if NPY_FEATURE_VERSION >= NPY_1_16_API_VERSION
+#define PyUFunc_FromFuncAndDataAndSignatureAndIdentity \
+        (*(PyObject * (*)(PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, const int, const char *, PyObject *)) \
+    PyUFunc_API[42])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyUFunc_AddLoopFromSpec \
+        (*(int (*)(PyObject *, PyArrayMethod_Spec *)) \
+    PyUFunc_API[43])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyUFunc_AddPromoter \
+        (*(int (*)(PyObject *, PyObject *, PyObject *)) \
+    PyUFunc_API[44])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyUFunc_AddWrappingLoop \
+        (*(int (*)(PyObject *, PyArray_DTypeMeta *new_dtypes[], PyArray_DTypeMeta *wrapped_dtypes[], PyArrayMethod_TranslateGivenDescriptors *, PyArrayMethod_TranslateLoopDescriptors *)) \
+    PyUFunc_API[45])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+#define PyUFunc_GiveFloatingpointErrors \
+        (*(int (*)(const char *, int)) \
+    PyUFunc_API[46])
+#endif
+
+#if NPY_FEATURE_VERSION >= NPY_2_4_API_VERSION
+#define PyUFunc_AddLoopsFromSpecs \
+        (*(int (*)(PyUFunc_LoopSlot *)) \
+    PyUFunc_API[47])
+#endif
+
+static inline int
+_import_umath(void)
+{
+  PyObject *c_api;
+  PyObject *numpy = PyImport_ImportModule("numpy._core._multiarray_umath");
+  if (numpy == NULL && PyErr_ExceptionMatches(PyExc_ModuleNotFoundError)) {
+    PyErr_Clear();
+    numpy = PyImport_ImportModule("numpy.core._multiarray_umath");
+  }
+
+  if (numpy == NULL) {
+      PyErr_SetString(PyExc_ImportError,
+                      "_multiarray_umath failed to import");
+      return -1;
+  }
+
+  c_api = PyObject_GetAttrString(numpy, "_UFUNC_API");
+  Py_DECREF(numpy);
+  if (c_api == NULL) {
+      PyErr_SetString(PyExc_AttributeError, "_UFUNC_API not found");
+      return -1;
+  }
+
+  if (!PyCapsule_CheckExact(c_api)) {
+      PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is not PyCapsule object");
+      Py_DECREF(c_api);
+      return -1;
+  }
+  PyUFunc_API = (void **)PyCapsule_GetPointer(c_api, NULL);
+  Py_DECREF(c_api);
+  if (PyUFunc_API == NULL) {
+      PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is NULL pointer");
+      return -1;
+  }
+  return 0;
+}
+
+#define import_umath() \
+    do {\
+        UFUNC_NOFPE\
+        if (_import_umath() < 0) {\
+            PyErr_Print();\
+            PyErr_SetString(PyExc_ImportError,\
+                    "numpy._core.umath failed to import");\
+            return NULL;\
+        }\
+    } while(0)
+
+#define import_umath1(ret) \
+    do {\
+        UFUNC_NOFPE\
+        if (_import_umath() < 0) {\
+            PyErr_Print();\
+            PyErr_SetString(PyExc_ImportError,\
+                    "numpy._core.umath failed to import");\
+            return ret;\
+        }\
+    } while(0)
+
+#define import_umath2(ret, msg) \
+    do {\
+        UFUNC_NOFPE\
+        if (_import_umath() < 0) {\
+            PyErr_Print();\
+            PyErr_SetString(PyExc_ImportError, msg);\
+            return ret;\
+        }\
+    } while(0)
+
+#define import_ufunc() \
+    do {\
+        UFUNC_NOFPE\
+        if (_import_umath() < 0) {\
+            PyErr_Print();\
+            PyErr_SetString(PyExc_ImportError,\
+                    "numpy._core.umath failed to import");\
+        }\
+    } while(0)
+
+
+static inline int
+PyUFunc_ImportUFuncAPI()
+{
+    if (NPY_UNLIKELY(PyUFunc_API == NULL)) {
+        import_umath1(-1);
+    }
+    return 0;
+}
+
+#endif
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_neighborhood_iterator_imp.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_neighborhood_iterator_imp.h
new file mode 100644
index 0000000000000000000000000000000000000000..fdd1aed9e1f3779a3cca0579185a7c3d10c6e05d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_neighborhood_iterator_imp.h
@@ -0,0 +1,90 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY__NEIGHBORHOOD_IMP_H_
+#error You should not include this header directly
+#endif
+/*
+ * Private API (here for inline)
+ */
+static inline int
+_PyArrayNeighborhoodIter_IncrCoord(PyArrayNeighborhoodIterObject* iter);
+
+/*
+ * Update to next item of the iterator
+ *
+ * Note: this simply increment the coordinates vector, last dimension
+ * incremented first , i.e, for dimension 3
+ * ...
+ * -1, -1, -1
+ * -1, -1,  0
+ * -1, -1,  1
+ *  ....
+ * -1,  0, -1
+ * -1,  0,  0
+ *  ....
+ * 0,  -1, -1
+ * 0,  -1,  0
+ *  ....
+ */
+#define _UPDATE_COORD_ITER(c) \
+    wb = iter->coordinates[c] < iter->bounds[c][1]; \
+    if (wb) { \
+        iter->coordinates[c] += 1; \
+        return 0; \
+    } \
+    else { \
+        iter->coordinates[c] = iter->bounds[c][0]; \
+    }
+
+static inline int
+_PyArrayNeighborhoodIter_IncrCoord(PyArrayNeighborhoodIterObject* iter)
+{
+    npy_intp i, wb;
+
+    for (i = iter->nd - 1; i >= 0; --i) {
+        _UPDATE_COORD_ITER(i)
+    }
+
+    return 0;
+}
+
+/*
+ * Version optimized for 2d arrays, manual loop unrolling
+ */
+static inline int
+_PyArrayNeighborhoodIter_IncrCoord2D(PyArrayNeighborhoodIterObject* iter)
+{
+    npy_intp wb;
+
+    _UPDATE_COORD_ITER(1)
+    _UPDATE_COORD_ITER(0)
+
+    return 0;
+}
+#undef _UPDATE_COORD_ITER
+
+/*
+ * Advance to the next neighbour
+ */
+static inline int
+PyArrayNeighborhoodIter_Next(PyArrayNeighborhoodIterObject* iter)
+{
+    _PyArrayNeighborhoodIter_IncrCoord (iter);
+    iter->dataptr = iter->translate((PyArrayIterObject*)iter, iter->coordinates);
+
+    return 0;
+}
+
+/*
+ * Reset functions
+ */
+static inline int
+PyArrayNeighborhoodIter_Reset(PyArrayNeighborhoodIterObject* iter)
+{
+    npy_intp i;
+
+    for (i = 0; i < iter->nd; ++i) {
+        iter->coordinates[i] = iter->bounds[i][0];
+    }
+    iter->dataptr = iter->translate((PyArrayIterObject*)iter, iter->coordinates);
+
+    return 0;
+}
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_numpyconfig.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_numpyconfig.h
new file mode 100644
index 0000000000000000000000000000000000000000..56cb52a47332b66180687c40fa0092e6db1daffd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_numpyconfig.h
@@ -0,0 +1,33 @@
+/* #undef NPY_HAVE_ENDIAN_H */
+
+#define NPY_SIZEOF_SHORT 2
+#define NPY_SIZEOF_INT 4
+#define NPY_SIZEOF_LONG 4
+#define NPY_SIZEOF_FLOAT 4
+#define NPY_SIZEOF_COMPLEX_FLOAT 8
+#define NPY_SIZEOF_DOUBLE 8
+#define NPY_SIZEOF_COMPLEX_DOUBLE 16
+#define NPY_SIZEOF_LONGDOUBLE 8
+#define NPY_SIZEOF_COMPLEX_LONGDOUBLE 16
+#define NPY_SIZEOF_PY_INTPTR_T 8
+#define NPY_SIZEOF_INTP 8
+#define NPY_SIZEOF_UINTP 8
+#define NPY_SIZEOF_WCHAR_T 2
+#define NPY_SIZEOF_OFF_T 4
+#define NPY_SIZEOF_PY_LONG_LONG 8
+#define NPY_SIZEOF_LONGLONG 8
+
+/*
+ * Defined to 1 or 0. Note that Pyodide hardcodes NPY_NO_SMP (and other defines
+ * in this header) for better cross-compilation, so don't rename them without a
+ * good reason.
+ */
+#define NPY_NO_SMP 0
+
+#define NPY_VISIBILITY_HIDDEN
+#define NPY_ABI_VERSION 0x02000000
+#define NPY_API_VERSION 0x00000015
+
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS 1
+#endif
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_public_dtype_api_table.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_public_dtype_api_table.h
new file mode 100644
index 0000000000000000000000000000000000000000..474b2aec38c60b11d04c23bcad8a4c564f40810c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/_public_dtype_api_table.h
@@ -0,0 +1,86 @@
+/*
+ * Public exposure of the DType Classes.  These are tricky to expose
+ * via the Python API, so they are exposed through this header for now.
+ *
+ * These definitions are only relevant for the public API and we reserve
+ * the slots 320-360 in the API table generation for this (currently).
+ *
+ * TODO: This file should be consolidated with the API table generation
+ *       (although not sure the current generation is worth preserving).
+ */
+#ifndef NUMPY_CORE_INCLUDE_NUMPY__PUBLIC_DTYPE_API_TABLE_H_
+#define NUMPY_CORE_INCLUDE_NUMPY__PUBLIC_DTYPE_API_TABLE_H_
+
+#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD)
+
+/* All of these require NumPy 2.0 support */
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+
+/*
+ * The type of the DType metaclass
+ */
+#define PyArrayDTypeMeta_Type (*(PyTypeObject *)(PyArray_API + 320)[0])
+/*
+ * NumPy's builtin DTypes:
+ */
+#define PyArray_BoolDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[1])
+/* Integers */
+#define PyArray_ByteDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[2])
+#define PyArray_UByteDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[3])
+#define PyArray_ShortDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[4])
+#define PyArray_UShortDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[5])
+#define PyArray_IntDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[6])
+#define PyArray_UIntDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[7])
+#define PyArray_LongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[8])
+#define PyArray_ULongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[9])
+#define PyArray_LongLongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[10])
+#define PyArray_ULongLongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[11])
+/* Integer aliases */
+#define PyArray_Int8DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[12])
+#define PyArray_UInt8DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[13])
+#define PyArray_Int16DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[14])
+#define PyArray_UInt16DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[15])
+#define PyArray_Int32DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[16])
+#define PyArray_UInt32DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[17])
+#define PyArray_Int64DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[18])
+#define PyArray_UInt64DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[19])
+#define PyArray_IntpDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[20])
+#define PyArray_UIntpDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[21])
+/* Floats */
+#define PyArray_HalfDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[22])
+#define PyArray_FloatDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[23])
+#define PyArray_DoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[24])
+#define PyArray_LongDoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[25])
+/* Complex */
+#define PyArray_CFloatDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[26])
+#define PyArray_CDoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[27])
+#define PyArray_CLongDoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[28])
+/* String/Bytes */
+#define PyArray_BytesDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[29])
+#define PyArray_UnicodeDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[30])
+/* Datetime/Timedelta */
+#define PyArray_DatetimeDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[31])
+#define PyArray_TimedeltaDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[32])
+/* Object/Void */
+#define PyArray_ObjectDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[33])
+#define PyArray_VoidDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[34])
+/* Python types (used as markers for scalars) */
+#define PyArray_PyLongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[35])
+#define PyArray_PyFloatDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[36])
+#define PyArray_PyComplexDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[37])
+/* Default integer type */
+#define PyArray_DefaultIntDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[38])
+/* New non-legacy DTypes follow in the order they were added */
+#define PyArray_StringDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[39])
+
+/* NOTE: offset 40 is free */
+
+/* Need to start with a larger offset again for the abstract classes: */
+#define PyArray_IntAbstractDType (*(PyArray_DTypeMeta *)PyArray_API[366])
+#define PyArray_FloatAbstractDType (*(PyArray_DTypeMeta *)PyArray_API[367])
+#define PyArray_ComplexAbstractDType (*(PyArray_DTypeMeta *)PyArray_API[368])
+
+#endif /* NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION */
+
+#endif  /* NPY_INTERNAL_BUILD */
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY__PUBLIC_DTYPE_API_TABLE_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/arrayobject.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/arrayobject.h
new file mode 100644
index 0000000000000000000000000000000000000000..d3ca0a64121d2c2185b263f64ab2a6a72a25a218
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/arrayobject.h
@@ -0,0 +1,7 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_ARRAYOBJECT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_ARRAYOBJECT_H_
+#define Py_ARRAYOBJECT_H
+
+#include "ndarrayobject.h"
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_ARRAYOBJECT_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/arrayscalars.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/arrayscalars.h
new file mode 100644
index 0000000000000000000000000000000000000000..61297f8693482b20ab4fce6b5673b897420dea63
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/arrayscalars.h
@@ -0,0 +1,198 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_ARRAYSCALARS_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_ARRAYSCALARS_H_
+
+#ifndef _MULTIARRAYMODULE
+typedef struct {
+        PyObject_HEAD
+        npy_bool obval;
+} PyBoolScalarObject;
+#endif
+
+
+typedef struct {
+        PyObject_HEAD
+        signed char obval;
+} PyByteScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        short obval;
+} PyShortScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        int obval;
+} PyIntScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        long obval;
+} PyLongScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_longlong obval;
+} PyLongLongScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        unsigned char obval;
+} PyUByteScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        unsigned short obval;
+} PyUShortScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        unsigned int obval;
+} PyUIntScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        unsigned long obval;
+} PyULongScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_ulonglong obval;
+} PyULongLongScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_half obval;
+} PyHalfScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        float obval;
+} PyFloatScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        double obval;
+} PyDoubleScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_longdouble obval;
+} PyLongDoubleScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_cfloat obval;
+} PyCFloatScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_cdouble obval;
+} PyCDoubleScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        npy_clongdouble obval;
+} PyCLongDoubleScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        PyObject * obval;
+} PyObjectScalarObject;
+
+typedef struct {
+        PyObject_HEAD
+        npy_datetime obval;
+        PyArray_DatetimeMetaData obmeta;
+} PyDatetimeScalarObject;
+
+typedef struct {
+        PyObject_HEAD
+        npy_timedelta obval;
+        PyArray_DatetimeMetaData obmeta;
+} PyTimedeltaScalarObject;
+
+
+typedef struct {
+        PyObject_HEAD
+        char obval;
+} PyScalarObject;
+
+#define PyStringScalarObject PyBytesObject
+#ifndef Py_LIMITED_API
+typedef struct {
+        /* note that the PyObject_HEAD macro lives right here */
+        PyUnicodeObject base;
+        Py_UCS4 *obval;
+    #if NPY_FEATURE_VERSION >= NPY_1_20_API_VERSION
+        char *buffer_fmt;
+    #endif
+} PyUnicodeScalarObject;
+#endif
+
+
+typedef struct {
+        PyObject_VAR_HEAD
+        char *obval;
+#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD
+        /* Internally use the subclass to allow accessing names/fields */
+        _PyArray_LegacyDescr *descr;
+#else
+        PyArray_Descr *descr;
+#endif
+        int flags;
+        PyObject *base;
+    #if NPY_FEATURE_VERSION >= NPY_1_20_API_VERSION
+        void *_buffer_info;  /* private buffer info, tagged to allow warning */
+    #endif
+} PyVoidScalarObject;
+
+/* Macros
+     Py<Cls><bitsize>ScalarObject
+     Py<Cls><bitsize>ArrType_Type
+   are defined in ndarrayobject.h
+*/
+
+#define PyArrayScalar_False ((PyObject *)(&(_PyArrayScalar_BoolValues[0])))
+#define PyArrayScalar_True ((PyObject *)(&(_PyArrayScalar_BoolValues[1])))
+#define PyArrayScalar_FromLong(i) \
+        ((PyObject *)(&(_PyArrayScalar_BoolValues[((i)!=0)])))
+#define PyArrayScalar_RETURN_BOOL_FROM_LONG(i) do {     \
+        PyObject *obj = PyArrayScalar_FromLong(i);      \
+        Py_INCREF(obj);                                 \
+        return obj;                                     \
+} while (0)
+#define PyArrayScalar_RETURN_FALSE              \
+        return Py_INCREF(PyArrayScalar_False),  \
+                PyArrayScalar_False
+#define PyArrayScalar_RETURN_TRUE               \
+        return Py_INCREF(PyArrayScalar_True),   \
+                PyArrayScalar_True
+
+#define PyArrayScalar_New(cls) \
+        Py##cls##ArrType_Type.tp_alloc(&Py##cls##ArrType_Type, 0)
+#ifndef Py_LIMITED_API
+/* For the limited API, use PyArray_ScalarAsCtype instead */
+#define PyArrayScalar_VAL(obj, cls)             \
+        ((Py##cls##ScalarObject *)obj)->obval
+#define PyArrayScalar_ASSIGN(obj, cls, val) \
+        PyArrayScalar_VAL(obj, cls) = val
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_ARRAYSCALARS_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/dtype_api.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/dtype_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..08a9c9a8bbf7addefacef945a473a250feeba68f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/dtype_api.h
@@ -0,0 +1,547 @@
+/*
+ * The public DType API
+ */
+
+#ifndef NUMPY_CORE_INCLUDE_NUMPY___DTYPE_API_H_
+#define NUMPY_CORE_INCLUDE_NUMPY___DTYPE_API_H_
+
+struct PyArrayMethodObject_tag;
+
+/*
+ * Largely opaque struct for DType classes (i.e. metaclass instances).
+ * The internal definition is currently in `ndarraytypes.h` (export is a bit
+ * more complex because `PyArray_Descr` is a DTypeMeta internally but not
+ * externally).
+ */
+#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD)
+
+#ifndef Py_LIMITED_API
+
+    typedef struct PyArray_DTypeMeta_tag {
+        PyHeapTypeObject super;
+
+        /*
+        * Most DTypes will have a singleton default instance, for the
+        * parametric legacy DTypes (bytes, string, void, datetime) this
+        * may be a pointer to the *prototype* instance?
+        */
+        PyArray_Descr *singleton;
+        /* Copy of the legacy DTypes type number, usually invalid. */
+        int type_num;
+
+        /* The type object of the scalar instances (may be NULL?) */
+        PyTypeObject *scalar_type;
+        /*
+        * DType flags to signal legacy, parametric, or
+        * abstract.  But plenty of space for additional information/flags.
+        */
+        npy_uint64 flags;
+
+        /*
+        * Use indirection in order to allow a fixed size for this struct.
+        * A stable ABI size makes creating a static DType less painful
+        * while also ensuring flexibility for all opaque API (with one
+        * indirection due the pointer lookup).
+        */
+        void *dt_slots;
+        /* Allow growing (at the moment also beyond this) */
+        void *reserved[3];
+    } PyArray_DTypeMeta;
+
+#else
+
+typedef PyTypeObject PyArray_DTypeMeta;
+
+#endif /* Py_LIMITED_API */
+
+#endif  /* not internal build */
+
+/*
+ * ******************************************************
+ *         ArrayMethod API (Casting and UFuncs)
+ * ******************************************************
+ */
+
+
+typedef enum {
+    /* Flag for whether the GIL is required */
+    NPY_METH_REQUIRES_PYAPI = 1 << 0,
+    /*
+     * Some functions cannot set floating point error flags, this flag
+     * gives us the option (not requirement) to skip floating point error
+     * setup/check. No function should set error flags and ignore them
+     * since it would interfere with chaining operations (e.g. casting).
+     */
+    NPY_METH_NO_FLOATINGPOINT_ERRORS = 1 << 1,
+    /* Whether the method supports unaligned access (not runtime) */
+    NPY_METH_SUPPORTS_UNALIGNED = 1 << 2,
+    /*
+     * Used for reductions to allow reordering the operation.  At this point
+     * assume that if set, it also applies to normal operations though!
+     */
+    NPY_METH_IS_REORDERABLE = 1 << 3,
+    /*
+     * Private flag for now for *logic* functions.  The logical functions
+     * `logical_or` and `logical_and` can always cast the inputs to booleans
+     * "safely" (because that is how the cast to bool is defined).
+     * @seberg: I am not sure this is the best way to handle this, so its
+     * private for now (also it is very limited anyway).
+     * There is one "exception". NA aware dtypes cannot cast to bool
+     * (hopefully), so the `??->?` loop should error even with this flag.
+     * But a second NA fallback loop will be necessary.
+     */
+    _NPY_METH_FORCE_CAST_INPUTS = 1 << 17,
+
+    /* All flags which can change at runtime */
+    NPY_METH_RUNTIME_FLAGS = (
+            NPY_METH_REQUIRES_PYAPI |
+            NPY_METH_NO_FLOATINGPOINT_ERRORS),
+} NPY_ARRAYMETHOD_FLAGS;
+
+
+typedef enum {
+    /* Casting via same_value logic */
+    NPY_SAME_VALUE_CONTEXT_FLAG=1,
+} NPY_ARRAYMETHOD_CONTEXT_FLAGS;
+
+typedef struct PyArrayMethod_Context_tag {
+    /* The caller, which is typically the original ufunc.  May be NULL */
+    PyObject *caller;
+    /* The method "self".  Currently an opaque object. */
+    struct PyArrayMethodObject_tag *method;
+
+    /* Operand descriptors, filled in by resolve_descriptors */
+    PyArray_Descr *const *descriptors;
+ #if NPY_FEATURE_VERSION > NPY_2_3_API_VERSION
+    void * _reserved;
+    /* 
+     * Optional flag to pass information into the inner loop
+     * NPY_ARRAYMETHOD_CONTEXT_FLAGS
+     */
+    uint64_t flags;
+    
+    /*
+     * Optional run-time parameters to pass to the loop (currently used in sorting).
+     * Fixed parameters are expected to be passed via auxdata.
+     */
+    void *parameters;
+    
+    /* Structure may grow (this is harmless for DType authors) */
+ #endif
+} PyArrayMethod_Context;
+
+
+/*
+ * The main object for creating a new ArrayMethod. We use the typical `slots`
+ * mechanism used by the Python limited API (see below for the slot defs).
+ */
+typedef struct {
+    const char *name;
+    int nin, nout;
+    NPY_CASTING casting;
+    NPY_ARRAYMETHOD_FLAGS flags;
+    PyArray_DTypeMeta **dtypes;
+    PyType_Slot *slots;
+} PyArrayMethod_Spec;
+
+
+// This is used for the convenience function `PyUFunc_AddLoopsFromSpecs`
+typedef struct {
+    const char *name;
+    PyArrayMethod_Spec *spec;
+} PyUFunc_LoopSlot;
+
+
+/*
+ * ArrayMethod slots
+ * -----------------
+ *
+ * SLOTS IDs For the ArrayMethod creation, once fully public, IDs are fixed
+ * but can be deprecated and arbitrarily extended.
+ */
+#define _NPY_METH_resolve_descriptors_with_scalars 1
+#define NPY_METH_resolve_descriptors 2
+#define NPY_METH_get_loop 3
+#define NPY_METH_get_reduction_initial 4
+/* specific loops for constructions/default get_loop: */
+#define NPY_METH_strided_loop 5
+#define NPY_METH_contiguous_loop 6
+#define NPY_METH_unaligned_strided_loop 7
+#define NPY_METH_unaligned_contiguous_loop 8
+#define NPY_METH_contiguous_indexed_loop 9
+#define _NPY_METH_static_data 10
+
+/*
+ * The resolve descriptors function, must be able to handle NULL values for
+ * all output (but not input) `given_descrs` and fill `loop_descrs`.
+ * Return -1 on error or 0 if the operation is not possible without an error
+ * set.  (This may still be in flux.)
+ * Otherwise must return the "casting safety", for normal functions, this is
+ * almost always "safe" (or even "equivalent"?).
+ *
+ * `resolve_descriptors` is optional if all output DTypes are non-parametric.
+ */
+typedef NPY_CASTING (PyArrayMethod_ResolveDescriptors)(
+        /* "method" is currently opaque (necessary e.g. to wrap Python) */
+        struct PyArrayMethodObject_tag *method,
+        /* DTypes the method was created for */
+        PyArray_DTypeMeta *const *dtypes,
+        /* Input descriptors (instances).  Outputs may be NULL. */
+        PyArray_Descr *const *given_descrs,
+        /* Exact loop descriptors to use, must not hold references on error */
+        PyArray_Descr **loop_descrs,
+        npy_intp *view_offset);
+
+
+/*
+ * Rarely needed, slightly more powerful version of `resolve_descriptors`.
+ * See also `PyArrayMethod_ResolveDescriptors` for details on shared arguments.
+ *
+ * NOTE: This function is private now as it is unclear how and what to pass
+ *       exactly as additional information to allow dealing with the scalars.
+ *       See also gh-24915.
+ */
+typedef NPY_CASTING (PyArrayMethod_ResolveDescriptorsWithScalar)(
+        struct PyArrayMethodObject_tag *method,
+        PyArray_DTypeMeta *const *dtypes,
+        /* Unlike above, these can have any DType and we may allow NULL. */
+        PyArray_Descr *const *given_descrs,
+        /*
+         * Input scalars or NULL.  Only ever passed for python scalars.
+         * WARNING: In some cases, a loop may be explicitly selected and the
+         *     value passed is not available (NULL) or does not have the
+         *     expected type.
+         */
+        PyObject *const *input_scalars,
+        PyArray_Descr **loop_descrs,
+        npy_intp *view_offset);
+
+
+
+typedef int (PyArrayMethod_StridedLoop)(PyArrayMethod_Context *context,
+        char *const *data, const npy_intp *dimensions, const npy_intp *strides,
+        NpyAuxData *transferdata);
+
+
+typedef int (PyArrayMethod_GetLoop)(
+        PyArrayMethod_Context *context,
+        int aligned, int move_references,
+        const npy_intp *strides,
+        PyArrayMethod_StridedLoop **out_loop,
+        NpyAuxData **out_transferdata,
+        NPY_ARRAYMETHOD_FLAGS *flags);
+
+/**
+ * Query an ArrayMethod for the initial value for use in reduction.
+ *
+ * @param context The arraymethod context, mainly to access the descriptors.
+ * @param reduction_is_empty Whether the reduction is empty. When it is, the
+ *     value returned may differ.  In this case it is a "default" value that
+ *     may differ from the "identity" value normally used.  For example:
+ *     - `0.0` is the default for `sum([])`.  But `-0.0` is the correct
+ *       identity otherwise as it preserves the sign for `sum([-0.0])`.
+ *     - We use no identity for object, but return the default of `0` and `1`
+ *       for the empty `sum([], dtype=object)` and `prod([], dtype=object)`.
+ *       This allows `np.sum(np.array(["a", "b"], dtype=object))` to work.
+ *     - `-inf` or `INT_MIN` for `max` is an identity, but at least `INT_MIN`
+ *       not a good *default* when there are no items.
+ * @param initial Pointer to initial data to be filled (if possible)
+ *
+ * @returns -1, 0, or 1 indicating error, no initial value, and initial being
+ *     successfully filled.  Errors must not be given where 0 is correct, NumPy
+ *     may call this even when not strictly necessary.
+ */
+typedef int (PyArrayMethod_GetReductionInitial)(
+        PyArrayMethod_Context *context, npy_bool reduction_is_empty,
+        void *initial);
+
+/*
+ * The following functions are only used by the wrapping array method defined
+ * in umath/wrapping_array_method.c
+ */
+
+
+/*
+ * The function to convert the given descriptors (passed in to
+ * `resolve_descriptors`) and translates them for the wrapped loop.
+ * The new descriptors MUST be viewable with the old ones, `NULL` must be
+ * supported (for outputs) and should normally be forwarded.
+ *
+ * The function must clean up on error.
+ *
+ * NOTE: We currently assume that this translation gives "viewable" results.
+ *       I.e. there is no additional casting related to the wrapping process.
+ *       In principle that could be supported, but not sure it is useful.
+ *       This currently also means that e.g. alignment must apply identically
+ *       to the new dtypes.
+ *
+ * TODO: Due to the fact that `resolve_descriptors` is also used for `can_cast`
+ *       there is no way to "pass out" the result of this function.  This means
+ *       it will be called twice for every ufunc call.
+ *       (I am considering including `auxdata` as an "optional" parameter to
+ *       `resolve_descriptors`, so that it can be filled there if not NULL.)
+ */
+typedef int (PyArrayMethod_TranslateGivenDescriptors)(int nin, int nout,
+        PyArray_DTypeMeta *const wrapped_dtypes[],
+        PyArray_Descr *const given_descrs[], PyArray_Descr *new_descrs[]);
+
+/**
+ * The function to convert the actual loop descriptors (as returned by the
+ * original `resolve_descriptors` function) to the ones the output array
+ * should use.
+ * This function must return "viewable" types, it must not mutate them in any
+ * form that would break the inner-loop logic.  Does not need to support NULL.
+ *
+ * The function must clean up on error.
+ *
+ * @param nin Number of input arguments
+ * @param nout Number of output arguments
+ * @param new_dtypes The DTypes of the output (usually probably not needed)
+ * @param given_descrs Original given_descrs to the resolver, necessary to
+ *        fetch any information related to the new dtypes from the original.
+ * @param original_descrs The `loop_descrs` returned by the wrapped loop.
+ * @param loop_descrs The output descriptors, compatible to `original_descrs`.
+ *
+ * @returns 0 on success, -1 on failure.
+ */
+typedef int (PyArrayMethod_TranslateLoopDescriptors)(int nin, int nout,
+        PyArray_DTypeMeta *const new_dtypes[], PyArray_Descr *const given_descrs[],
+        PyArray_Descr *original_descrs[], PyArray_Descr *loop_descrs[]);
+
+
+
+/*
+ * A traverse loop working on a single array. This is similar to the general
+ * strided-loop function. This is designed for loops that need to visit every
+ * element of a single array.
+ *
+ * Currently this is used for array clearing, via the NPY_DT_get_clear_loop
+ * API hook, and zero-filling, via the NPY_DT_get_fill_zero_loop API hook.
+ * These are most useful for handling arrays storing embedded references to
+ * python objects or heap-allocated data.
+ *
+ * The `void *traverse_context` is passed in because we may need to pass in
+ * Interpreter state or similar in the future, but we don't want to pass in
+ * a full context (with pointers to dtypes, method, caller which all make
+ * no sense for a traverse function).
+ *
+ * We assume for now that this context can be just passed through in the
+ * the future (for structured dtypes).
+ *
+ */
+typedef int (PyArrayMethod_TraverseLoop)(
+        void *traverse_context, const PyArray_Descr *descr, char *data,
+        npy_intp size, npy_intp stride, NpyAuxData *auxdata);
+
+
+/*
+ * Simplified get_loop function specific to dtype traversal
+ *
+ * It should set the flags needed for the traversal loop and set out_loop to the
+ * loop function, which must be a valid PyArrayMethod_TraverseLoop
+ * pointer. Currently this is used for zero-filling and clearing arrays storing
+ * embedded references.
+ *
+ */
+typedef int (PyArrayMethod_GetTraverseLoop)(
+        void *traverse_context, const PyArray_Descr *descr,
+        int aligned, npy_intp fixed_stride,
+        PyArrayMethod_TraverseLoop **out_loop, NpyAuxData **out_auxdata,
+        NPY_ARRAYMETHOD_FLAGS *flags);
+
+
+/*
+ * Type of the C promoter function, which must be wrapped into a
+ * PyCapsule with name "numpy._ufunc_promoter".
+ *
+ * Note that currently the output dtypes are always NULL unless they are
+ * also part of the signature. This is an implementation detail and could
+ * change in the future. However, in general promoters should not have a
+ * need for output dtypes.
+ * (There are potential use-cases, these are currently unsupported.)
+ */
+typedef int (PyArrayMethod_PromoterFunction)(PyObject *ufunc,
+        PyArray_DTypeMeta *const op_dtypes[], PyArray_DTypeMeta *const signature[],
+        PyArray_DTypeMeta *new_op_dtypes[]);
+
+/*
+ * ****************************
+ *          DTYPE API
+ * ****************************
+ */
+
+#define NPY_DT_ABSTRACT 1 << 1
+#define NPY_DT_PARAMETRIC 1 << 2
+#define NPY_DT_NUMERIC 1 << 3
+
+/*
+ * These correspond to slots in the NPY_DType_Slots struct and must
+ * be in the same order as the members of that struct. If new slots
+ * get added or old slots get removed NPY_NUM_DTYPE_SLOTS must also
+ * be updated
+ */
+
+#define NPY_DT_discover_descr_from_pyobject 1
+// this slot is considered private because its API hasn't been decided
+#define _NPY_DT_is_known_scalar_type 2
+#define NPY_DT_default_descr 3
+#define NPY_DT_common_dtype 4
+#define NPY_DT_common_instance 5
+#define NPY_DT_ensure_canonical 6
+#define NPY_DT_setitem 7
+#define NPY_DT_getitem 8
+#define NPY_DT_get_clear_loop 9
+#define NPY_DT_get_fill_zero_loop 10
+#define NPY_DT_finalize_descr 11
+#define NPY_DT_get_constant 12
+
+// These PyArray_ArrFunc slots will be deprecated and replaced eventually
+// getitem and setitem can be defined as a performance optimization;
+// by default the user dtypes call `legacy_getitem_using_DType` and
+// `legacy_setitem_using_DType`, respectively. This functionality is
+// only supported for basic NumPy DTypes.
+
+
+// used to separate dtype slots from arrfuncs slots
+// intended only for internal use but defined here for clarity
+#define _NPY_DT_ARRFUNCS_OFFSET (1 << 11)
+
+// Cast is disabled
+// #define NPY_DT_PyArray_ArrFuncs_cast 0 + _NPY_DT_ARRFUNCS_OFFSET
+
+#define NPY_DT_PyArray_ArrFuncs_getitem 1 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_setitem 2 + _NPY_DT_ARRFUNCS_OFFSET
+
+// Copyswap is disabled
+// #define NPY_DT_PyArray_ArrFuncs_copyswapn 3 + _NPY_DT_ARRFUNCS_OFFSET
+// #define NPY_DT_PyArray_ArrFuncs_copyswap 4 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_compare 5 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_argmax 6 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_dotfunc 7 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_scanfunc 8 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_fromstr 9 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_nonzero 10 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_fill 11 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_fillwithscalar 12 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_sort 13 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_argsort 14 + _NPY_DT_ARRFUNCS_OFFSET
+
+// Casting related slots are disabled. See
+// https://github.com/numpy/numpy/pull/23173#discussion_r1101098163
+// #define NPY_DT_PyArray_ArrFuncs_castdict 15 + _NPY_DT_ARRFUNCS_OFFSET
+// #define NPY_DT_PyArray_ArrFuncs_scalarkind 16 + _NPY_DT_ARRFUNCS_OFFSET
+// #define NPY_DT_PyArray_ArrFuncs_cancastscalarkindto 17 + _NPY_DT_ARRFUNCS_OFFSET
+// #define NPY_DT_PyArray_ArrFuncs_cancastto 18 + _NPY_DT_ARRFUNCS_OFFSET
+
+// These are deprecated in NumPy 1.19, so are disabled here.
+// #define NPY_DT_PyArray_ArrFuncs_fastclip 19 + _NPY_DT_ARRFUNCS_OFFSET
+// #define NPY_DT_PyArray_ArrFuncs_fastputmask 20 + _NPY_DT_ARRFUNCS_OFFSET
+// #define NPY_DT_PyArray_ArrFuncs_fasttake 21 + _NPY_DT_ARRFUNCS_OFFSET
+#define NPY_DT_PyArray_ArrFuncs_argmin 22 + _NPY_DT_ARRFUNCS_OFFSET
+
+
+// TODO: These slots probably still need some thought, and/or a way to "grow"?
+typedef struct {
+    PyTypeObject *typeobj;    /* type of python scalar or NULL */
+    int flags;                /* flags, including parametric and abstract */
+    /* NULL terminated cast definitions. Use NULL for the newly created DType */
+    PyArrayMethod_Spec **casts;
+    PyType_Slot *slots;
+    /* Baseclass or NULL (will always subclass `np.dtype`) */
+    PyTypeObject *baseclass;
+} PyArrayDTypeMeta_Spec;
+
+
+typedef PyArray_Descr *(PyArrayDTypeMeta_DiscoverDescrFromPyobject)(
+        PyArray_DTypeMeta *cls, PyObject *obj);
+
+/*
+ * Before making this public, we should decide whether it should pass
+ * the type, or allow looking at the object. A possible use-case:
+ * `np.array(np.array([0]), dtype=np.ndarray)`
+ * Could consider arrays that are not `dtype=ndarray` "scalars".
+ */
+typedef int (PyArrayDTypeMeta_IsKnownScalarType)(
+        PyArray_DTypeMeta *cls, PyTypeObject *obj);
+
+typedef PyArray_Descr *(PyArrayDTypeMeta_DefaultDescriptor)(PyArray_DTypeMeta *cls);
+typedef PyArray_DTypeMeta *(PyArrayDTypeMeta_CommonDType)(
+        PyArray_DTypeMeta *dtype1, PyArray_DTypeMeta *dtype2);
+
+
+/*
+ * Convenience utility for getting a reference to the DType metaclass associated
+ * with a dtype instance.
+ */
+#define NPY_DTYPE(descr) ((PyArray_DTypeMeta *)Py_TYPE(descr))
+
+static inline PyArray_DTypeMeta *
+NPY_DT_NewRef(PyArray_DTypeMeta *o) {
+    Py_INCREF((PyObject *)o);
+    return o;
+}
+
+
+typedef PyArray_Descr *(PyArrayDTypeMeta_CommonInstance)(
+        PyArray_Descr *dtype1, PyArray_Descr *dtype2);
+typedef PyArray_Descr *(PyArrayDTypeMeta_EnsureCanonical)(PyArray_Descr *dtype);
+/*
+ * Returns either a new reference to *dtype* or a new descriptor instance
+ * initialized with the same parameters as *dtype*. The caller cannot know
+ * which choice a dtype will make. This function is called just before the
+ * array buffer is created for a newly created array, it is not called for
+ * views and the descriptor returned by this function is attached to the array.
+ */
+typedef PyArray_Descr *(PyArrayDTypeMeta_FinalizeDescriptor)(PyArray_Descr *dtype);
+
+/*
+ * Constants that can be queried and used e.g. by reduce identies defaults.
+ * These are also used to expose .finfo and .iinfo for example.
+ */
+/* Numerical constants */
+#define NPY_CONSTANT_zero 1
+#define NPY_CONSTANT_one 2
+#define NPY_CONSTANT_all_bits_set 3
+#define NPY_CONSTANT_maximum_finite 4
+#define NPY_CONSTANT_minimum_finite 5
+#define NPY_CONSTANT_inf 6
+#define NPY_CONSTANT_ninf 7
+#define NPY_CONSTANT_nan 8
+#define NPY_CONSTANT_finfo_radix 9
+#define NPY_CONSTANT_finfo_eps 10
+#define NPY_CONSTANT_finfo_smallest_normal 11
+#define NPY_CONSTANT_finfo_smallest_subnormal 12
+/* Constants that are always of integer type, value is `npy_intp/Py_ssize_t` */
+#define NPY_CONSTANT_finfo_nmant (1 << 16) + 0
+#define NPY_CONSTANT_finfo_min_exp (1 << 16) + 1
+#define NPY_CONSTANT_finfo_max_exp (1 << 16) + 2
+#define NPY_CONSTANT_finfo_decimal_digits (1 << 16) + 3
+
+/* It may make sense to continue with other constants here, e.g. pi, etc? */
+
+/*
+ * Function to get a constant value for the dtype.  Data may be unaligned, the
+ * function is always called with the GIL held.
+ *
+ * @param descr The dtype instance (i.e. self)
+ * @param ID The ID of the constant to get.
+ * @param data Pointer to the data to be written too, may be unaligned.
+ * @returns 1 on success, 0 if the constant is not available, or -1 with an error set.
+ */
+typedef int (PyArrayDTypeMeta_GetConstant)(PyArray_Descr *descr, int ID, void *data);
+
+/*
+ * TODO: These two functions are currently only used for experimental DType
+ *       API support.  Their relation should be "reversed": NumPy should
+ *       always use them internally.
+ *       There are open points about "casting safety" though, e.g. setting
+ *       elements is currently always unsafe.
+ */
+typedef int(PyArrayDTypeMeta_SetItem)(PyArray_Descr *, PyObject *, char *);
+typedef PyObject *(PyArrayDTypeMeta_GetItem)(PyArray_Descr *, char *);
+
+typedef struct {
+    NPY_SORTKIND flags;
+} PyArrayMethod_SortParameters;
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY___DTYPE_API_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/halffloat.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/halffloat.h
new file mode 100644
index 0000000000000000000000000000000000000000..1365dc0e4f3c3523b32d6d7cbebc0d107627cf40
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/halffloat.h
@@ -0,0 +1,70 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_HALFFLOAT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_HALFFLOAT_H_
+
+#include <Python.h>
+#include <numpy/npy_math.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Half-precision routines
+ */
+
+/* Conversions */
+float npy_half_to_float(npy_half h);
+double npy_half_to_double(npy_half h);
+npy_half npy_float_to_half(float f);
+npy_half npy_double_to_half(double d);
+/* Comparisons */
+int npy_half_eq(npy_half h1, npy_half h2);
+int npy_half_ne(npy_half h1, npy_half h2);
+int npy_half_le(npy_half h1, npy_half h2);
+int npy_half_lt(npy_half h1, npy_half h2);
+int npy_half_ge(npy_half h1, npy_half h2);
+int npy_half_gt(npy_half h1, npy_half h2);
+/* faster *_nonan variants for when you know h1 and h2 are not NaN */
+int npy_half_eq_nonan(npy_half h1, npy_half h2);
+int npy_half_lt_nonan(npy_half h1, npy_half h2);
+int npy_half_le_nonan(npy_half h1, npy_half h2);
+/* Miscellaneous functions */
+int npy_half_iszero(npy_half h);
+int npy_half_isnan(npy_half h);
+int npy_half_isinf(npy_half h);
+int npy_half_isfinite(npy_half h);
+int npy_half_signbit(npy_half h);
+npy_half npy_half_copysign(npy_half x, npy_half y);
+npy_half npy_half_spacing(npy_half h);
+npy_half npy_half_nextafter(npy_half x, npy_half y);
+npy_half npy_half_divmod(npy_half x, npy_half y, npy_half *modulus);
+
+/*
+ * Half-precision constants
+ */
+
+#define NPY_HALF_ZERO   (0x0000u)
+#define NPY_HALF_PZERO  (0x0000u)
+#define NPY_HALF_NZERO  (0x8000u)
+#define NPY_HALF_ONE    (0x3c00u)
+#define NPY_HALF_NEGONE (0xbc00u)
+#define NPY_HALF_PINF   (0x7c00u)
+#define NPY_HALF_NINF   (0xfc00u)
+#define NPY_HALF_NAN    (0x7e00u)
+
+#define NPY_MAX_HALF    (0x7bffu)
+
+/*
+ * Bit-level conversions
+ */
+
+npy_uint16 npy_floatbits_to_halfbits(npy_uint32 f);
+npy_uint16 npy_doublebits_to_halfbits(npy_uint64 d);
+npy_uint32 npy_halfbits_to_floatbits(npy_uint16 h);
+npy_uint64 npy_halfbits_to_doublebits(npy_uint16 h);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_HALFFLOAT_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ndarrayobject.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ndarrayobject.h
new file mode 100644
index 0000000000000000000000000000000000000000..accc67e4c6e8cf8c3cdd1d444811a59fc08d2fe9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ndarrayobject.h
@@ -0,0 +1,304 @@
+/*
+ * DON'T INCLUDE THIS DIRECTLY.
+ */
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NDARRAYOBJECT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NDARRAYOBJECT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <Python.h>
+#include "ndarraytypes.h"
+#include "dtype_api.h"
+
+/* Includes the "function" C-API -- these are all stored in a
+   list of pointers --- one for each file
+   The two lists are concatenated into one in multiarray.
+
+   They are available as import_array()
+*/
+
+#include "__multiarray_api.h"
+
+/*
+ * Include any definitions which are defined differently for 1.x and 2.x
+ * (Symbols only available on 2.x are not there, but rather guarded.)
+ */
+#include "npy_2_compat.h"
+
+/* C-API that requires previous API to be defined */
+
+#define PyArray_DescrCheck(op) PyObject_TypeCheck(op, &PyArrayDescr_Type)
+
+#define PyArray_Check(op) PyObject_TypeCheck(op, &PyArray_Type)
+#define PyArray_CheckExact(op) (Py_TYPE((PyObject*)(op)) == &PyArray_Type)
+
+#define PyArray_HasArrayInterfaceType(op, type, context, out)                 \
+        ((((out)=PyArray_FromStructInterface(op)) != Py_NotImplemented) ||    \
+         (((out)=PyArray_FromInterface(op)) != Py_NotImplemented) ||          \
+         (((out)=PyArray_FromArrayAttr(op, type, context)) !=                 \
+          Py_NotImplemented))
+
+#define PyArray_HasArrayInterface(op, out)                                    \
+        PyArray_HasArrayInterfaceType(op, NULL, NULL, out)
+
+#define PyArray_IsZeroDim(op) (PyArray_Check(op) && \
+                               (PyArray_NDIM((PyArrayObject *)op) == 0))
+
+#define PyArray_IsScalar(obj, cls)                                            \
+        (PyObject_TypeCheck(obj, &Py##cls##ArrType_Type))
+
+#define PyArray_CheckScalar(m) (PyArray_IsScalar(m, Generic) ||               \
+                                PyArray_IsZeroDim(m))
+#define PyArray_IsPythonNumber(obj)                                           \
+        (PyFloat_Check(obj) || PyComplex_Check(obj) ||                        \
+         PyLong_Check(obj) || PyBool_Check(obj))
+#define PyArray_IsIntegerScalar(obj) (PyLong_Check(obj)                       \
+              || PyArray_IsScalar((obj), Integer))
+#define PyArray_IsPythonScalar(obj)                                           \
+        (PyArray_IsPythonNumber(obj) || PyBytes_Check(obj) ||                 \
+         PyUnicode_Check(obj))
+
+#define PyArray_IsAnyScalar(obj)                                              \
+        (PyArray_IsScalar(obj, Generic) || PyArray_IsPythonScalar(obj))
+
+#define PyArray_CheckAnyScalar(obj) (PyArray_IsPythonScalar(obj) ||           \
+                                     PyArray_CheckScalar(obj))
+
+
+#define PyArray_GETCONTIGUOUS(m) (PyArray_ISCONTIGUOUS(m) ?                   \
+                                  Py_INCREF(m), (m) :                         \
+                                  (PyArrayObject *)(PyArray_Copy(m)))
+
+#define PyArray_SAMESHAPE(a1,a2) ((PyArray_NDIM(a1) == PyArray_NDIM(a2)) &&   \
+                                  PyArray_CompareLists(PyArray_DIMS(a1),      \
+                                                       PyArray_DIMS(a2),      \
+                                                       PyArray_NDIM(a1)))
+
+#define PyArray_SIZE(m) PyArray_MultiplyList(PyArray_DIMS(m), PyArray_NDIM(m))
+#define PyArray_NBYTES(m) (PyArray_ITEMSIZE(m) * PyArray_SIZE(m))
+#define PyArray_FROM_O(m) PyArray_FromAny(m, NULL, 0, 0, 0, NULL)
+
+#define PyArray_FROM_OF(m,flags) PyArray_CheckFromAny(m, NULL, 0, 0, flags,   \
+                                                      NULL)
+
+#define PyArray_FROM_OT(m,type) PyArray_FromAny(m,                            \
+                                PyArray_DescrFromType(type), 0, 0, 0, NULL)
+
+#define PyArray_FROM_OTF(m, type, flags) \
+        PyArray_FromAny(m, PyArray_DescrFromType(type), 0, 0, \
+                        (((flags) & NPY_ARRAY_ENSURECOPY) ? \
+                         ((flags) | NPY_ARRAY_DEFAULT) : (flags)), NULL)
+
+#define PyArray_FROMANY(m, type, min, max, flags) \
+        PyArray_FromAny(m, PyArray_DescrFromType(type), min, max, \
+                        (((flags) & NPY_ARRAY_ENSURECOPY) ? \
+                         (flags) | NPY_ARRAY_DEFAULT : (flags)), NULL)
+
+#define PyArray_ZEROS(m, dims, type, is_f_order) \
+        PyArray_Zeros(m, dims, PyArray_DescrFromType(type), is_f_order)
+
+#define PyArray_EMPTY(m, dims, type, is_f_order) \
+        PyArray_Empty(m, dims, PyArray_DescrFromType(type), is_f_order)
+
+#define PyArray_FILLWBYTE(obj, val) memset(PyArray_DATA(obj), val, \
+                                           PyArray_NBYTES(obj))
+
+#define PyArray_ContiguousFromAny(op, type, min_depth, max_depth) \
+        PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \
+                              max_depth, NPY_ARRAY_DEFAULT, NULL)
+
+#define PyArray_EquivArrTypes(a1, a2) \
+        PyArray_EquivTypes(PyArray_DESCR(a1), PyArray_DESCR(a2))
+
+#define PyArray_EquivByteorders(b1, b2) \
+        (((b1) == (b2)) || (PyArray_ISNBO(b1) == PyArray_ISNBO(b2)))
+
+#define PyArray_SimpleNew(nd, dims, typenum) \
+        PyArray_New(&PyArray_Type, nd, dims, typenum, NULL, NULL, 0, 0, NULL)
+
+#define PyArray_SimpleNewFromData(nd, dims, typenum, data) \
+        PyArray_New(&PyArray_Type, nd, dims, typenum, NULL, \
+                    data, 0, NPY_ARRAY_CARRAY, NULL)
+
+#define PyArray_SimpleNewFromDescr(nd, dims, descr) \
+        PyArray_NewFromDescr(&PyArray_Type, descr, nd, dims, \
+                             NULL, NULL, 0, NULL)
+
+#define PyArray_ToScalar(data, arr) \
+        PyArray_Scalar(data, PyArray_DESCR(arr), (PyObject *)arr)
+
+
+/* These might be faster without the dereferencing of obj
+   going on inside -- of course an optimizing compiler should
+   inline the constants inside a for loop making it a moot point
+*/
+
+#define PyArray_GETPTR1(obj, i) ((void *)(PyArray_BYTES(obj) + \
+                                         (i)*PyArray_STRIDES(obj)[0]))
+
+#define PyArray_GETPTR2(obj, i, j) ((void *)(PyArray_BYTES(obj) + \
+                                            (i)*PyArray_STRIDES(obj)[0] + \
+                                            (j)*PyArray_STRIDES(obj)[1]))
+
+#define PyArray_GETPTR3(obj, i, j, k) ((void *)(PyArray_BYTES(obj) + \
+                                            (i)*PyArray_STRIDES(obj)[0] + \
+                                            (j)*PyArray_STRIDES(obj)[1] + \
+                                            (k)*PyArray_STRIDES(obj)[2]))
+
+#define PyArray_GETPTR4(obj, i, j, k, l) ((void *)(PyArray_BYTES(obj) + \
+                                            (i)*PyArray_STRIDES(obj)[0] + \
+                                            (j)*PyArray_STRIDES(obj)[1] + \
+                                            (k)*PyArray_STRIDES(obj)[2] + \
+                                            (l)*PyArray_STRIDES(obj)[3]))
+
+static inline void
+PyArray_DiscardWritebackIfCopy(PyArrayObject *arr)
+{
+    PyArrayObject_fields *fa = (PyArrayObject_fields *)arr;
+    if (fa && fa->base) {
+        if (fa->flags & NPY_ARRAY_WRITEBACKIFCOPY) {
+            PyArray_ENABLEFLAGS((PyArrayObject*)fa->base, NPY_ARRAY_WRITEABLE);
+            Py_DECREF(fa->base);
+            fa->base = NULL;
+            PyArray_CLEARFLAGS(arr, NPY_ARRAY_WRITEBACKIFCOPY);
+        }
+    }
+}
+
+#define PyArray_DESCR_REPLACE(descr) do { \
+                PyArray_Descr *_new_; \
+                _new_ = PyArray_DescrNew(descr); \
+                Py_XDECREF(descr); \
+                descr = _new_; \
+        } while(0)
+
+/* Copy should always return contiguous array */
+#define PyArray_Copy(obj) PyArray_NewCopy(obj, NPY_CORDER)
+
+#define PyArray_FromObject(op, type, min_depth, max_depth) \
+        PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \
+                              max_depth, NPY_ARRAY_BEHAVED | \
+                                         NPY_ARRAY_ENSUREARRAY, NULL)
+
+#define PyArray_ContiguousFromObject(op, type, min_depth, max_depth) \
+        PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \
+                              max_depth, NPY_ARRAY_DEFAULT | \
+                                         NPY_ARRAY_ENSUREARRAY, NULL)
+
+#define PyArray_CopyFromObject(op, type, min_depth, max_depth) \
+        PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \
+                        max_depth, NPY_ARRAY_ENSURECOPY | \
+                                   NPY_ARRAY_DEFAULT | \
+                                   NPY_ARRAY_ENSUREARRAY, NULL)
+
+#define PyArray_Cast(mp, type_num)                                            \
+        PyArray_CastToType(mp, PyArray_DescrFromType(type_num), 0)
+
+#define PyArray_Take(ap, items, axis)                                         \
+        PyArray_TakeFrom(ap, items, axis, NULL, NPY_RAISE)
+
+#define PyArray_Put(ap, items, values)                                        \
+        PyArray_PutTo(ap, items, values, NPY_RAISE)
+
+
+/*
+   Check to see if this key in the dictionary is the "title"
+   entry of the tuple (i.e. a duplicate dictionary entry in the fields
+   dict).
+*/
+
+static inline int
+NPY_TITLE_KEY_check(PyObject *key, PyObject *value)
+{
+    PyObject *title;
+    if (PyTuple_Size(value) != 3) {
+        return 0;
+    }
+    title = PyTuple_GetItem(value, 2);
+    if (key == title) {
+        return 1;
+    }
+#ifdef PYPY_VERSION
+    /*
+     * On PyPy, dictionary keys do not always preserve object identity.
+     * Fall back to comparison by value.
+     */
+    if (PyUnicode_Check(title) && PyUnicode_Check(key)) {
+        return PyUnicode_Compare(title, key) == 0 ? 1 : 0;
+    }
+#endif
+    return 0;
+}
+
+/* Macro, for backward compat with "if NPY_TITLE_KEY(key, value) { ..." */
+#define NPY_TITLE_KEY(key, value) (NPY_TITLE_KEY_check((key), (value)))
+
+#define DEPRECATE(msg) PyErr_WarnEx(PyExc_DeprecationWarning,msg,1)
+#define DEPRECATE_FUTUREWARNING(msg) PyErr_WarnEx(PyExc_FutureWarning,msg,1)
+
+
+/*
+ * These macros and functions unfortunately require runtime version checks
+ * that are only defined in `npy_2_compat.h`.  For that reasons they cannot be
+ * part of `ndarraytypes.h` which tries to be self contained.
+ */
+
+static inline npy_intp
+PyArray_ITEMSIZE(const PyArrayObject *arr)
+{
+    return PyDataType_ELSIZE(((PyArrayObject_fields *)arr)->descr);
+}
+
+#define PyDataType_HASFIELDS(obj) (PyDataType_ISLEGACY((PyArray_Descr*)(obj)) && PyDataType_NAMES((PyArray_Descr*)(obj)) != NULL)
+#define PyDataType_HASSUBARRAY(dtype) (PyDataType_ISLEGACY(dtype) && PyDataType_SUBARRAY(dtype) != NULL)
+#define PyDataType_ISUNSIZED(dtype) ((dtype)->elsize == 0 && \
+                                      !PyDataType_HASFIELDS(dtype))
+
+#define PyDataType_FLAGCHK(dtype, flag) \
+        ((PyDataType_FLAGS(dtype) & (flag)) == (flag))
+
+#define PyDataType_REFCHK(dtype) \
+        PyDataType_FLAGCHK(dtype, NPY_ITEM_REFCOUNT)
+
+#define NPY_BEGIN_THREADS_DESCR(dtype) \
+        do {if (!(PyDataType_FLAGCHK((dtype), NPY_NEEDS_PYAPI))) \
+                NPY_BEGIN_THREADS;} while (0);
+
+#define NPY_END_THREADS_DESCR(dtype) \
+        do {if (!(PyDataType_FLAGCHK((dtype), NPY_NEEDS_PYAPI))) \
+                NPY_END_THREADS; } while (0);
+
+#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD)
+/* The internal copy of this is now defined in `dtypemeta.h` */
+/*
+ * `PyArray_Scalar` is the same as this function but converts will convert
+ * most NumPy types to Python scalars.
+ */
+static inline PyObject *
+PyArray_GETITEM(const PyArrayObject *arr, const char *itemptr)
+{
+    return PyDataType_GetArrFuncs(((PyArrayObject_fields *)arr)->descr)->getitem(
+                                        (void *)itemptr, (PyArrayObject *)arr);
+}
+
+/*
+ * SETITEM should only be used if it is known that the value is a scalar
+ * and of a type understood by the arrays dtype.
+ * Use `PyArray_Pack` if the value may be of a different dtype.
+ */
+static inline int
+PyArray_SETITEM(PyArrayObject *arr, char *itemptr, PyObject *v)
+{
+    return PyDataType_GetArrFuncs(((PyArrayObject_fields *)arr)->descr)->setitem(v, itemptr, arr);
+}
+#endif  /* not internal */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NDARRAYOBJECT_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ndarraytypes.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ndarraytypes.h
new file mode 100644
index 0000000000000000000000000000000000000000..5dfb746b497b2ee9b86c725e769ed40f59a3ed34
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ndarraytypes.h
@@ -0,0 +1,1982 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_
+
+#include "npy_common.h"
+#include "npy_endian.h"
+#include "npy_cpu.h"
+#include "utils.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define NPY_NO_EXPORT NPY_VISIBILITY_HIDDEN
+
+/* Always allow threading unless it was explicitly disabled at build time */
+#if !NPY_NO_SMP
+        #define NPY_ALLOW_THREADS 1
+#else
+        #define NPY_ALLOW_THREADS 0
+#endif
+
+#ifndef __has_extension
+#define __has_extension(x) 0
+#endif
+
+/*
+ * There are several places in the code where an array of dimensions
+ * is allocated statically.  This is the size of that static
+ * allocation.
+ *
+ * The array creation itself could have arbitrary dimensions but all
+ * the places where static allocation is used would need to be changed
+ * to dynamic (including inside of several structures)
+ *
+ * As of NumPy 2.0, we strongly discourage the downstream use of NPY_MAXDIMS,
+ * but since auditing everything seems a big ask, define it as 64.
+ * A future version could:
+ * - Increase or remove the limit and require recompilation (like 2.0 did)
+ * - Deprecate or remove the macro but keep the limit (at basically any time)
+ */
+#define NPY_MAXDIMS 64
+/* We cannot change this as it would break ABI: */
+#define NPY_MAXDIMS_LEGACY_ITERS 32
+/* NPY_MAXARGS is version dependent and defined in npy_2_compat.h */
+
+/* Used for Converter Functions "O&" code in ParseTuple */
+#define NPY_FAIL 0
+#define NPY_SUCCEED 1
+
+
+enum NPY_TYPES {    NPY_BOOL=0,
+                    NPY_BYTE, NPY_UBYTE,
+                    NPY_SHORT, NPY_USHORT,
+                    NPY_INT, NPY_UINT,
+                    NPY_LONG, NPY_ULONG,
+                    NPY_LONGLONG, NPY_ULONGLONG,
+                    NPY_FLOAT, NPY_DOUBLE, NPY_LONGDOUBLE,
+                    NPY_CFLOAT, NPY_CDOUBLE, NPY_CLONGDOUBLE,
+                    NPY_OBJECT=17,
+                    NPY_STRING, NPY_UNICODE,
+                    NPY_VOID,
+                    /*
+                     * New 1.6 types appended, may be integrated
+                     * into the above in 2.0.
+                     */
+                    NPY_DATETIME, NPY_TIMEDELTA, NPY_HALF,
+
+                    NPY_CHAR, /* Deprecated, will raise if used */
+
+                    /* The number of *legacy* dtypes */
+                    NPY_NTYPES_LEGACY=24,
+
+                    /* assign a high value to avoid changing this in the
+                       future when new dtypes are added */
+                    NPY_NOTYPE=25,
+
+                    NPY_USERDEF=256,  /* leave room for characters */
+
+                    /* The number of types not including the new 1.6 types */
+                    NPY_NTYPES_ABI_COMPATIBLE=21,
+
+                    /*
+                     * New DTypes which do not share the legacy layout
+                     * (added after NumPy 2.0).  VSTRING is the first of these
+                     * we may open up a block for user-defined dtypes in the
+                     * future.
+                     */
+                    NPY_VSTRING=2056,
+};
+
+
+/* basetype array priority */
+#define NPY_PRIORITY 0.0
+
+/* default subtype priority */
+#define NPY_SUBTYPE_PRIORITY 1.0
+
+/* default scalar priority */
+#define NPY_SCALAR_PRIORITY -1000000.0
+
+/* How many floating point types are there (excluding half) */
+#define NPY_NUM_FLOATTYPE 3
+
+/*
+ * These characters correspond to the array type and the struct
+ * module
+ */
+
+enum NPY_TYPECHAR {
+        NPY_BOOLLTR = '?',
+        NPY_BYTELTR = 'b',
+        NPY_UBYTELTR = 'B',
+        NPY_SHORTLTR = 'h',
+        NPY_USHORTLTR = 'H',
+        NPY_INTLTR = 'i',
+        NPY_UINTLTR = 'I',
+        NPY_LONGLTR = 'l',
+        NPY_ULONGLTR = 'L',
+        NPY_LONGLONGLTR = 'q',
+        NPY_ULONGLONGLTR = 'Q',
+        NPY_HALFLTR = 'e',
+        NPY_FLOATLTR = 'f',
+        NPY_DOUBLELTR = 'd',
+        NPY_LONGDOUBLELTR = 'g',
+        NPY_CFLOATLTR = 'F',
+        NPY_CDOUBLELTR = 'D',
+        NPY_CLONGDOUBLELTR = 'G',
+        NPY_OBJECTLTR = 'O',
+        NPY_STRINGLTR = 'S',
+        NPY_DEPRECATED_STRINGLTR2 = 'a',
+        NPY_UNICODELTR = 'U',
+        NPY_VOIDLTR = 'V',
+        NPY_DATETIMELTR = 'M',
+        NPY_TIMEDELTALTR = 'm',
+        NPY_CHARLTR = 'c',
+
+        /*
+         * New non-legacy DTypes
+         */
+        NPY_VSTRINGLTR = 'T',
+
+        /*
+         * Note, we removed `NPY_INTPLTR` due to changing its definition
+         * to 'n', rather than 'p'.  On any typical platform this is the
+         * same integer.  'n' should be used for the `np.intp` with the same
+         * size as `size_t` while 'p' remains pointer sized.
+         *
+         * 'p', 'P', 'n', and 'N' are valid and defined explicitly
+         * in `arraytypes.c.src`.
+         */
+
+        /*
+         * These are for dtype 'kinds', not dtype 'typecodes'
+         * as the above are for.
+         */
+        NPY_GENBOOLLTR ='b',
+        NPY_SIGNEDLTR = 'i',
+        NPY_UNSIGNEDLTR = 'u',
+        NPY_FLOATINGLTR = 'f',
+        NPY_COMPLEXLTR = 'c',
+
+};
+
+/*
+ * Changing this may break Numpy API compatibility due to changing offsets in
+ * PyArray_ArrFuncs, so be careful. Here we have reused the mergesort slot for
+ * any kind of stable sort, the actual implementation will depend on the data
+ * type.
+ *
+ * Updated in NumPy 2.4
+ *
+ * Updated with new names denoting requirements rather than specifying a
+ * particular algorithm. All the previous values are reused in a way that
+ * should be downstream compatible, but the actual algorithms used may be
+ * different than before. The new approach should be more flexible and easier
+ * to update.
+ * 
+ * Names with a leading underscore are private, and should only be used
+ * internally by NumPy.
+ *
+ * NPY_NSORTS remains the same for backwards compatibility, it should not be
+ * changed.
+ */
+
+typedef enum {
+        _NPY_SORT_UNDEFINED = -1,
+        NPY_QUICKSORT = 0,
+        NPY_HEAPSORT = 1,
+        NPY_MERGESORT = 2,
+        NPY_STABLESORT = 2,
+        // new style names 
+        _NPY_SORT_HEAPSORT = 1,
+        NPY_SORT_DEFAULT = 0,
+        NPY_SORT_STABLE = 2,
+        NPY_SORT_DESCENDING = 4,
+} NPY_SORTKIND;
+#define NPY_NSORTS (NPY_STABLESORT + 1)
+
+
+typedef enum {
+        NPY_INTROSELECT=0
+} NPY_SELECTKIND;
+#define NPY_NSELECTS (NPY_INTROSELECT + 1)
+
+
+typedef enum {
+        NPY_SEARCHLEFT=0,
+        NPY_SEARCHRIGHT=1
+} NPY_SEARCHSIDE;
+#define NPY_NSEARCHSIDES (NPY_SEARCHRIGHT + 1)
+
+
+typedef enum {
+        NPY_NOSCALAR=-1,
+        NPY_BOOL_SCALAR,
+        NPY_INTPOS_SCALAR,
+        NPY_INTNEG_SCALAR,
+        NPY_FLOAT_SCALAR,
+        NPY_COMPLEX_SCALAR,
+        NPY_OBJECT_SCALAR
+} NPY_SCALARKIND;
+#define NPY_NSCALARKINDS (NPY_OBJECT_SCALAR + 1)
+
+/* For specifying array memory layout or iteration order */
+typedef enum {
+        /* Fortran order if inputs are all Fortran, C otherwise */
+        NPY_ANYORDER=-1,
+        /* C order */
+        NPY_CORDER=0,
+        /* Fortran order */
+        NPY_FORTRANORDER=1,
+        /* An order as close to the inputs as possible */
+        NPY_KEEPORDER=2
+} NPY_ORDER;
+
+#if NPY_FEATURE_VERSION >= NPY_2_4_API_VERSION
+/*
+ * check that no values overflow/change during casting
+ * Used  explicitly only in the ArrayMethod creation or resolve_dtypes functions to
+ * indicate that a same-value cast is supported. In external APIs, use only
+ * NPY_SAME_VALUE_CASTING
+ */
+#define NPY_SAME_VALUE_CASTING_FLAG 64
+#endif
+
+/* For specifying allowed casting in operations which support it */
+typedef enum {
+        _NPY_ERROR_OCCURRED_IN_CAST = -1,
+        /* Only allow identical types */
+        NPY_NO_CASTING=0,
+        /* Allow identical and byte swapped types */
+        NPY_EQUIV_CASTING=1,
+        /* Only allow safe casts */
+        NPY_SAFE_CASTING=2,
+        /* Allow safe casts or casts within the same kind */
+        NPY_SAME_KIND_CASTING=3,
+        /* Allow any casts */
+        NPY_UNSAFE_CASTING=4,
+#if NPY_FEATURE_VERSION >= NPY_2_4_API_VERSION
+        NPY_SAME_VALUE_CASTING=NPY_UNSAFE_CASTING | NPY_SAME_VALUE_CASTING_FLAG,
+#endif
+} NPY_CASTING;
+
+typedef enum {
+        NPY_CLIP=0,
+        NPY_WRAP=1,
+        NPY_RAISE=2
+} NPY_CLIPMODE;
+
+typedef enum {
+        NPY_VALID=0,
+        NPY_SAME=1,
+        NPY_FULL=2
+} NPY_CORRELATEMODE;
+
+/* The special not-a-time (NaT) value */
+#define NPY_DATETIME_NAT NPY_MIN_INT64
+
+/*
+ * Upper bound on the length of a DATETIME ISO 8601 string
+ *   YEAR: 21 (64-bit year)
+ *   MONTH: 3
+ *   DAY: 3
+ *   HOURS: 3
+ *   MINUTES: 3
+ *   SECONDS: 3
+ *   ATTOSECONDS: 1 + 3*6
+ *   TIMEZONE: 5
+ *   NULL TERMINATOR: 1
+ */
+#define NPY_DATETIME_MAX_ISO8601_STRLEN (21 + 3*5 + 1 + 3*6 + 6 + 1)
+
+/* The FR in the unit names stands for frequency */
+typedef enum {
+        /* Force signed enum type, must be -1 for code compatibility */
+        NPY_FR_ERROR = -1,      /* error or undetermined */
+
+        /* Start of valid units */
+        NPY_FR_Y = 0,           /* Years */
+        NPY_FR_M = 1,           /* Months */
+        NPY_FR_W = 2,           /* Weeks */
+        /* Gap where 1.6 NPY_FR_B (value 3) was */
+        NPY_FR_D = 4,           /* Days */
+        NPY_FR_h = 5,           /* hours */
+        NPY_FR_m = 6,           /* minutes */
+        NPY_FR_s = 7,           /* seconds */
+        NPY_FR_ms = 8,          /* milliseconds */
+        NPY_FR_us = 9,          /* microseconds */
+        NPY_FR_ns = 10,         /* nanoseconds */
+        NPY_FR_ps = 11,         /* picoseconds */
+        NPY_FR_fs = 12,         /* femtoseconds */
+        NPY_FR_as = 13,         /* attoseconds */
+        NPY_FR_GENERIC = 14     /* unbound units, can convert to anything */
+} NPY_DATETIMEUNIT;
+
+/*
+ * NOTE: With the NPY_FR_B gap for 1.6 ABI compatibility, NPY_DATETIME_NUMUNITS
+ * is technically one more than the actual number of units.
+ */
+#define NPY_DATETIME_NUMUNITS (NPY_FR_GENERIC + 1)
+#define NPY_DATETIME_DEFAULTUNIT NPY_FR_GENERIC
+
+/*
+ * Business day conventions for mapping invalid business
+ * days to valid business days.
+ */
+typedef enum {
+    /* Go forward in time to the following business day. */
+    NPY_BUSDAY_FORWARD,
+    NPY_BUSDAY_FOLLOWING = NPY_BUSDAY_FORWARD,
+    /* Go backward in time to the preceding business day. */
+    NPY_BUSDAY_BACKWARD,
+    NPY_BUSDAY_PRECEDING = NPY_BUSDAY_BACKWARD,
+    /*
+     * Go forward in time to the following business day, unless it
+     * crosses a month boundary, in which case go backward
+     */
+    NPY_BUSDAY_MODIFIEDFOLLOWING,
+    /*
+     * Go backward in time to the preceding business day, unless it
+     * crosses a month boundary, in which case go forward.
+     */
+    NPY_BUSDAY_MODIFIEDPRECEDING,
+    /* Produce a NaT for non-business days. */
+    NPY_BUSDAY_NAT,
+    /* Raise an exception for non-business days. */
+    NPY_BUSDAY_RAISE
+} NPY_BUSDAY_ROLL;
+
+
+/************************************************************
+ * NumPy Auxiliary Data for inner loops, sort functions, etc.
+ ************************************************************/
+
+/*
+ * When creating an auxiliary data struct, this should always appear
+ * as the first member, like this:
+ *
+ * typedef struct {
+ *     NpyAuxData base;
+ *     double constant;
+ * } constant_multiplier_aux_data;
+ */
+typedef struct NpyAuxData_tag NpyAuxData;
+
+/* Function pointers for freeing or cloning auxiliary data */
+typedef void (NpyAuxData_FreeFunc) (NpyAuxData *);
+typedef NpyAuxData *(NpyAuxData_CloneFunc) (NpyAuxData *);
+
+struct NpyAuxData_tag {
+    NpyAuxData_FreeFunc *free;
+    NpyAuxData_CloneFunc *clone;
+    /* To allow for a bit of expansion without breaking the ABI */
+    void *reserved[2];
+};
+
+/* Macros to use for freeing and cloning auxiliary data */
+#define NPY_AUXDATA_FREE(auxdata) \
+    do { \
+        if ((auxdata) != NULL) { \
+            (auxdata)->free(auxdata); \
+        } \
+    } while(0)
+#define NPY_AUXDATA_CLONE(auxdata) \
+    ((auxdata)->clone(auxdata))
+
+#define NPY_ERR(str) fprintf(stderr, #str); fflush(stderr);
+#define NPY_ERR2(str) fprintf(stderr, str); fflush(stderr);
+
+/*
+* Macros to define how array, and dimension/strides data is
+* allocated. These should be made private
+*/
+
+#define NPY_USE_PYMEM 1
+
+
+#if NPY_USE_PYMEM == 1
+/* use the Raw versions which are safe to call with the GIL released */
+#define PyArray_malloc PyMem_RawMalloc
+#define PyArray_free PyMem_RawFree
+#define PyArray_realloc PyMem_RawRealloc
+#else
+#define PyArray_malloc malloc
+#define PyArray_free free
+#define PyArray_realloc realloc
+#endif
+
+/* Dimensions and strides */
+#define PyDimMem_NEW(size)                                         \
+    ((npy_intp *)PyArray_malloc(size*sizeof(npy_intp)))
+
+#define PyDimMem_FREE(ptr) PyArray_free(ptr)
+
+#define PyDimMem_RENEW(ptr,size)                                   \
+        ((npy_intp *)PyArray_realloc(ptr,size*sizeof(npy_intp)))
+
+/* forward declaration */
+struct _PyArray_Descr;
+
+/* These must deal with unaligned and swapped data if necessary */
+typedef PyObject * (PyArray_GetItemFunc) (void *, void *);
+typedef int (PyArray_SetItemFunc)(PyObject *, void *, void *);
+
+typedef void (PyArray_CopySwapNFunc)(void *, npy_intp, void *, npy_intp,
+                                     npy_intp, int, void *);
+
+typedef void (PyArray_CopySwapFunc)(void *, void *, int, void *);
+typedef npy_bool (PyArray_NonzeroFunc)(void *, void *);
+
+
+/*
+ * These assume aligned and notswapped data -- a buffer will be used
+ * before or contiguous data will be obtained
+ */
+
+typedef int (PyArray_CompareFunc)(const void *, const void *, void *);
+typedef int (PyArray_ArgFunc)(void*, npy_intp, npy_intp*, void *);
+
+typedef void (PyArray_DotFunc)(void *, npy_intp, void *, npy_intp, void *,
+                               npy_intp, void *);
+
+typedef void (PyArray_VectorUnaryFunc)(void *, void *, npy_intp, void *,
+                                       void *);
+
+/*
+ * XXX the ignore argument should be removed next time the API version
+ * is bumped. It used to be the separator.
+ */
+typedef int (PyArray_ScanFunc)(FILE *fp, void *dptr,
+                               char *ignore, struct _PyArray_Descr *);
+typedef int (PyArray_FromStrFunc)(char *s, void *dptr, char **endptr,
+                                  struct _PyArray_Descr *);
+
+typedef int (PyArray_FillFunc)(void *, npy_intp, void *);
+
+typedef int (PyArray_SortFunc)(void *, npy_intp, void *);
+typedef int (PyArray_ArgSortFunc)(void *, npy_intp *, npy_intp, void *);
+
+typedef int (PyArray_FillWithScalarFunc)(void *, npy_intp, void *, void *);
+
+typedef int (PyArray_ScalarKindFunc)(void *);
+
+typedef struct {
+        npy_intp *ptr;
+        int len;
+} PyArray_Dims;
+
+typedef struct {
+        /*
+         * Functions to cast to most other standard types
+         * Can have some NULL entries. The types
+         * DATETIME, TIMEDELTA, and HALF go into the castdict
+         * even though they are built-in.
+         */
+        PyArray_VectorUnaryFunc *cast[NPY_NTYPES_ABI_COMPATIBLE];
+
+        /* The next four functions *cannot* be NULL */
+
+        /*
+         * Functions to get and set items with standard Python types
+         * -- not array scalars
+         */
+        PyArray_GetItemFunc *getitem;
+        PyArray_SetItemFunc *setitem;
+
+        /*
+         * Copy and/or swap data.  Memory areas may not overlap
+         * Use memmove first if they might
+         */
+        PyArray_CopySwapNFunc *copyswapn;
+        PyArray_CopySwapFunc *copyswap;
+
+        /*
+         * Function to compare items
+         * Can be NULL
+         */
+        PyArray_CompareFunc *compare;
+
+        /*
+         * Function to select largest
+         * Can be NULL
+         */
+        PyArray_ArgFunc *argmax;
+
+        /*
+         * Function to compute dot product
+         * Can be NULL
+         */
+        PyArray_DotFunc *dotfunc;
+
+        /*
+         * Function to scan an ASCII file and
+         * place a single value plus possible separator
+         * Can be NULL
+         */
+        PyArray_ScanFunc *scanfunc;
+
+        /*
+         * Function to read a single value from a string
+         * and adjust the pointer; Can be NULL
+         */
+        PyArray_FromStrFunc *fromstr;
+
+        /*
+         * Function to determine if data is zero or not
+         * If NULL a default version is
+         * used at Registration time.
+         */
+        PyArray_NonzeroFunc *nonzero;
+
+        /*
+         * Used for arange. Should return 0 on success
+         * and -1 on failure.
+         * Can be NULL.
+         */
+        PyArray_FillFunc *fill;
+
+        /*
+         * Function to fill arrays with scalar values
+         * Can be NULL
+         */
+        PyArray_FillWithScalarFunc *fillwithscalar;
+
+        /*
+         * Sorting functions
+         * Can be NULL
+         */
+        PyArray_SortFunc *sort[NPY_NSORTS];
+        PyArray_ArgSortFunc *argsort[NPY_NSORTS];
+
+        /*
+         * Dictionary of additional casting functions
+         * PyArray_VectorUnaryFuncs
+         * which can be populated to support casting
+         * to other registered types. Can be NULL
+         */
+        PyObject *castdict;
+
+        /*
+         * Functions useful for generalizing
+         * the casting rules.
+         * Can be NULL;
+         */
+        PyArray_ScalarKindFunc *scalarkind;
+        int **cancastscalarkindto;
+        int *cancastto;
+
+        void *_unused1;
+        void *_unused2;
+        void *_unused3;
+
+        /*
+         * Function to select smallest
+         * Can be NULL
+         */
+        PyArray_ArgFunc *argmin;
+
+} PyArray_ArrFuncs;
+
+
+/* The item must be reference counted when it is inserted or extracted. */
+#define NPY_ITEM_REFCOUNT   0x01
+/* Same as needing REFCOUNT */
+#define NPY_ITEM_HASOBJECT  0x01
+/* Convert to list for pickling */
+#define NPY_LIST_PICKLE     0x02
+/* The item is a POINTER  */
+#define NPY_ITEM_IS_POINTER 0x04
+/* memory needs to be initialized for this data-type */
+#define NPY_NEEDS_INIT      0x08
+/* operations need Python C-API so don't give-up thread. */
+#define NPY_NEEDS_PYAPI     0x10
+/* Use f.getitem when extracting elements of this data-type */
+#define NPY_USE_GETITEM     0x20
+/* Use f.setitem when setting creating 0-d array from this data-type.*/
+#define NPY_USE_SETITEM     0x40
+/* A sticky flag specifically for structured arrays */
+#define NPY_ALIGNED_STRUCT  0x80
+
+/*
+ *These are inherited for global data-type if any data-types in the
+ * field have them
+ */
+#define NPY_FROM_FIELDS    (NPY_NEEDS_INIT | NPY_LIST_PICKLE | \
+                            NPY_ITEM_REFCOUNT | NPY_NEEDS_PYAPI)
+
+#define NPY_OBJECT_DTYPE_FLAGS (NPY_LIST_PICKLE | NPY_USE_GETITEM | \
+                                NPY_ITEM_IS_POINTER | NPY_ITEM_REFCOUNT | \
+                                NPY_NEEDS_INIT | NPY_NEEDS_PYAPI)
+
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+/*
+ * Public version of the Descriptor struct as of 2.x
+ */
+typedef struct _PyArray_Descr {
+        PyObject_HEAD
+        /*
+         * the type object representing an
+         * instance of this type -- should not
+         * be two type_numbers with the same type
+         * object.
+         */
+        PyTypeObject *typeobj;
+        /* kind for this type */
+        char kind;
+        /* unique-character representing this type */
+        char type;
+        /*
+         * '>' (big), '<' (little), '|'
+         * (not-applicable), or '=' (native).
+         */
+        char byteorder;
+        /* Former flags flags space (unused) to ensure type_num is stable. */
+        char _former_flags;
+        /* number representing this type */
+        int type_num;
+        /* Space for dtype instance specific flags. */
+        npy_uint64 flags;
+        /* element size (itemsize) for this type */
+        npy_intp elsize;
+        /* alignment needed for this type */
+        npy_intp alignment;
+        /* metadata dict or NULL */
+        PyObject *metadata;
+        /* Cached hash value (-1 if not yet computed). */
+        npy_hash_t hash;
+        /* Unused slot (must be initialized to NULL) for future use */
+        void *reserved_null[2];
+} PyArray_Descr;
+
+#else  /* 1.x and 2.x compatible version (only shared fields): */
+
+typedef struct _PyArray_Descr {
+        PyObject_HEAD
+        PyTypeObject *typeobj;
+        char kind;
+        char type;
+        char byteorder;
+        char _former_flags;
+        int type_num;
+} PyArray_Descr;
+
+/* To access modified fields, define the full 2.0 struct: */
+typedef struct {
+        PyObject_HEAD
+        PyTypeObject *typeobj;
+        char kind;
+        char type;
+        char byteorder;
+        char _former_flags;
+        int type_num;
+        npy_uint64 flags;
+        npy_intp elsize;
+        npy_intp alignment;
+        PyObject *metadata;
+        npy_hash_t hash;
+        void *reserved_null[2];
+} _PyArray_DescrNumPy2;
+
+#endif  /* 1.x and 2.x compatible version */
+
+/*
+ * Semi-private struct with additional field of legacy descriptors (must
+ * check NPY_DT_is_legacy before casting/accessing).  The struct is also not
+ * valid when running on 1.x (i.e. in public API use).
+ */
+typedef struct {
+        PyObject_HEAD
+        PyTypeObject *typeobj;
+        char kind;
+        char type;
+        char byteorder;
+        char _former_flags;
+        int type_num;
+        npy_uint64 flags;
+        npy_intp elsize;
+        npy_intp alignment;
+        PyObject *metadata;
+        npy_hash_t hash;
+        void *reserved_null[2];
+        struct _arr_descr *subarray;
+        PyObject *fields;
+        PyObject *names;
+        NpyAuxData *c_metadata;
+} _PyArray_LegacyDescr;
+
+
+/*
+ * Umodified PyArray_Descr struct identical to NumPy 1.x.  This struct is
+ * used as a prototype for registering a new legacy DType.
+ * It is also used to access the fields in user code running on 1.x.
+ */
+typedef struct {
+        PyObject_HEAD
+        PyTypeObject *typeobj;
+        char kind;
+        char type;
+        char byteorder;
+        char flags;
+        int type_num;
+        int elsize;
+        int alignment;
+        struct _arr_descr *subarray;
+        PyObject *fields;
+        PyObject *names;
+        PyArray_ArrFuncs *f;
+        PyObject *metadata;
+        NpyAuxData *c_metadata;
+        npy_hash_t hash;
+} PyArray_DescrProto;
+
+
+typedef struct _arr_descr {
+        PyArray_Descr *base;
+        PyObject *shape;       /* a tuple */
+} PyArray_ArrayDescr;
+
+/*
+ * Memory handler structure for array data.
+ */
+/* The declaration of free differs from PyMemAllocatorEx */
+typedef struct {
+    void *ctx;
+    void* (*malloc) (void *ctx, size_t size);
+    void* (*calloc) (void *ctx, size_t nelem, size_t elsize);
+    void* (*realloc) (void *ctx, void *ptr, size_t new_size);
+    void (*free) (void *ctx, void *ptr, size_t size);
+    /*
+     * This is the end of the version=1 struct. Only add new fields after
+     * this line
+     */
+} PyDataMemAllocator;
+
+typedef struct {
+    char name[127];  /* multiple of 64 to keep the struct aligned */
+    uint8_t version; /* currently 1 */
+    PyDataMemAllocator allocator;
+} PyDataMem_Handler;
+
+
+/*
+ * The main array object structure.
+ *
+ * It has been recommended to use the inline functions defined below
+ * (PyArray_DATA and friends) to access fields here for a number of
+ * releases. Direct access to the members themselves is deprecated.
+ * To ensure that your code does not use deprecated access,
+ * #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
+ * (or NPY_1_8_API_VERSION or higher as required).
+ */
+/* This struct will be moved to a private header in a future release */
+typedef struct tagPyArrayObject_fields {
+    PyObject_HEAD
+    /* Pointer to the raw data buffer */
+    char *data;
+    /* The number of dimensions, also called 'ndim' */
+    int nd;
+    /* The size in each dimension, also called 'shape' */
+    npy_intp *dimensions;
+    /*
+     * Number of bytes to jump to get to the
+     * next element in each dimension
+     */
+    npy_intp *strides;
+    /*
+     * This object is decref'd upon
+     * deletion of array. Except in the
+     * case of WRITEBACKIFCOPY which has
+     * special handling.
+     *
+     * For views it points to the original
+     * array, collapsed so no chains of
+     * views occur.
+     *
+     * For creation from buffer object it
+     * points to an object that should be
+     * decref'd on deletion
+     *
+     * For WRITEBACKIFCOPY flag this is an
+     * array to-be-updated upon calling
+     * PyArray_ResolveWritebackIfCopy
+     */
+    PyObject *base;
+    /* Pointer to type structure */
+    PyArray_Descr *descr;
+    /* Flags describing array -- see below */
+    int flags;
+    /* For weak references */
+    PyObject *weakreflist;
+#if NPY_FEATURE_VERSION >= NPY_1_20_API_VERSION
+    void *_buffer_info;  /* private buffer info, tagged to allow warning */
+#endif
+    /*
+     * For malloc/calloc/realloc/free per object
+     */
+#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION
+    PyObject *mem_handler;
+#endif
+} PyArrayObject_fields;
+
+/*
+ * To hide the implementation details, we only expose
+ * the Python struct HEAD.
+ */
+#if !defined(NPY_NO_DEPRECATED_API) || \
+    (NPY_NO_DEPRECATED_API < NPY_1_7_API_VERSION)
+/*
+ * Can't put this in npy_deprecated_api.h like the others.
+ * PyArrayObject field access is deprecated as of NumPy 1.7.
+ */
+typedef PyArrayObject_fields PyArrayObject;
+#else
+typedef struct tagPyArrayObject {
+        PyObject_HEAD
+} PyArrayObject;
+#endif
+
+/*
+ * Removed 2020-Nov-25, NumPy 1.20
+ * #define NPY_SIZEOF_PYARRAYOBJECT (sizeof(PyArrayObject_fields))
+ *
+ * The above macro was removed as it gave a false sense of a stable ABI
+ * with respect to the structures size.  If you require a runtime constant,
+ * you can use `PyArray_Type.tp_basicsize` instead.  Otherwise, please
+ * see the PyArrayObject documentation or ask the NumPy developers for
+ * information on how to correctly replace the macro in a way that is
+ * compatible with multiple NumPy versions.
+ */
+
+/* Mirrors buffer object to ptr */
+
+typedef struct {
+        PyObject_HEAD
+        PyObject *base;
+        void *ptr;
+        npy_intp len;
+        int flags;
+} PyArray_Chunk;
+
+typedef struct {
+    NPY_DATETIMEUNIT base;
+    int num;
+} PyArray_DatetimeMetaData;
+
+typedef struct {
+    NpyAuxData base;
+    PyArray_DatetimeMetaData meta;
+} PyArray_DatetimeDTypeMetaData;
+
+/*
+ * This structure contains an exploded view of a date-time value.
+ * NaT is represented by year == NPY_DATETIME_NAT.
+ */
+typedef struct {
+        npy_int64 year;
+        npy_int32 month, day, hour, min, sec, us, ps, as;
+} npy_datetimestruct;
+
+/* This structure contains an exploded view of a timedelta value */
+typedef struct {
+        npy_int64 day;
+        npy_int32 sec, us, ps, as;
+} npy_timedeltastruct;
+
+typedef int (PyArray_FinalizeFunc)(PyArrayObject *, PyObject *);
+
+/*
+ * Means c-style contiguous (last index varies the fastest). The data
+ * elements right after each other.
+ *
+ * This flag may be requested in constructor functions.
+ * This flag may be tested for in PyArray_FLAGS(arr).
+ */
+#define NPY_ARRAY_C_CONTIGUOUS    0x0001
+
+/*
+ * Set if array is a contiguous Fortran array: the first index varies
+ * the fastest in memory (strides array is reverse of C-contiguous
+ * array)
+ *
+ * This flag may be requested in constructor functions.
+ * This flag may be tested for in PyArray_FLAGS(arr).
+ */
+#define NPY_ARRAY_F_CONTIGUOUS    0x0002
+
+/*
+ * Note: all 0-d arrays are C_CONTIGUOUS and F_CONTIGUOUS. If a
+ * 1-d array is C_CONTIGUOUS it is also F_CONTIGUOUS. Arrays with
+ * more then one dimension can be C_CONTIGUOUS and F_CONTIGUOUS
+ * at the same time if they have either zero or one element.
+ * A higher dimensional array always has the same contiguity flags as
+ * `array.squeeze()`; dimensions with `array.shape[dimension] == 1` are
+ * effectively ignored when checking for contiguity.
+ */
+
+/*
+ * If set, the array owns the data: it will be free'd when the array
+ * is deleted.
+ *
+ * This flag may be tested for in PyArray_FLAGS(arr).
+ */
+#define NPY_ARRAY_OWNDATA         0x0004
+
+/*
+ * An array never has the next four set; they're only used as parameter
+ * flags to the various FromAny functions
+ *
+ * This flag may be requested in constructor functions.
+ */
+
+/* Cause a cast to occur regardless of whether or not it is safe. */
+#define NPY_ARRAY_FORCECAST       0x0010
+
+/*
+ * Always copy the array. Returned arrays are always CONTIGUOUS,
+ * ALIGNED, and WRITEABLE. See also: NPY_ARRAY_ENSURENOCOPY = 0x4000.
+ *
+ * This flag may be requested in constructor functions.
+ */
+#define NPY_ARRAY_ENSURECOPY      0x0020
+
+/*
+ * Make sure the returned array is a base-class ndarray
+ *
+ * This flag may be requested in constructor functions.
+ */
+#define NPY_ARRAY_ENSUREARRAY     0x0040
+
+/*
+ * Make sure that the strides are in units of the element size Needed
+ * for some operations with record-arrays.
+ *
+ * This flag may be requested in constructor functions.
+ */
+#define NPY_ARRAY_ELEMENTSTRIDES  0x0080
+
+/*
+ * Array data is aligned on the appropriate memory address for the type
+ * stored according to how the compiler would align things (e.g., an
+ * array of integers (4 bytes each) starts on a memory address that's
+ * a multiple of 4)
+ *
+ * This flag may be requested in constructor functions.
+ * This flag may be tested for in PyArray_FLAGS(arr).
+ */
+#define NPY_ARRAY_ALIGNED         0x0100
+
+/*
+ * Array data has the native endianness
+ *
+ * This flag may be requested in constructor functions.
+ */
+#define NPY_ARRAY_NOTSWAPPED      0x0200
+
+/*
+ * Array data is writeable
+ *
+ * This flag may be requested in constructor functions.
+ * This flag may be tested for in PyArray_FLAGS(arr).
+ */
+#define NPY_ARRAY_WRITEABLE       0x0400
+
+/*
+ * If this flag is set, then base contains a pointer to an array of
+ * the same size that should be updated with the current contents of
+ * this array when PyArray_ResolveWritebackIfCopy is called.
+ *
+ * This flag may be requested in constructor functions.
+ * This flag may be tested for in PyArray_FLAGS(arr).
+ */
+#define NPY_ARRAY_WRITEBACKIFCOPY 0x2000
+
+/*
+ * No copy may be made while converting from an object/array (result is a view)
+ *
+ * This flag may be requested in constructor functions.
+ */
+#define NPY_ARRAY_ENSURENOCOPY 0x4000
+
+/*
+ * NOTE: there are also internal flags defined in multiarray/arrayobject.h,
+ * which start at bit 31 and work down.
+ */
+
+#define NPY_ARRAY_BEHAVED      (NPY_ARRAY_ALIGNED | \
+                                NPY_ARRAY_WRITEABLE)
+#define NPY_ARRAY_BEHAVED_NS   (NPY_ARRAY_ALIGNED | \
+                                NPY_ARRAY_WRITEABLE | \
+                                NPY_ARRAY_NOTSWAPPED)
+#define NPY_ARRAY_CARRAY       (NPY_ARRAY_C_CONTIGUOUS | \
+                                NPY_ARRAY_BEHAVED)
+#define NPY_ARRAY_CARRAY_RO    (NPY_ARRAY_C_CONTIGUOUS | \
+                                NPY_ARRAY_ALIGNED)
+#define NPY_ARRAY_FARRAY       (NPY_ARRAY_F_CONTIGUOUS | \
+                                NPY_ARRAY_BEHAVED)
+#define NPY_ARRAY_FARRAY_RO    (NPY_ARRAY_F_CONTIGUOUS | \
+                                NPY_ARRAY_ALIGNED)
+#define NPY_ARRAY_DEFAULT      (NPY_ARRAY_CARRAY)
+#define NPY_ARRAY_IN_ARRAY     (NPY_ARRAY_CARRAY_RO)
+#define NPY_ARRAY_OUT_ARRAY    (NPY_ARRAY_CARRAY)
+#define NPY_ARRAY_INOUT_ARRAY  (NPY_ARRAY_CARRAY)
+#define NPY_ARRAY_INOUT_ARRAY2 (NPY_ARRAY_CARRAY | \
+                                NPY_ARRAY_WRITEBACKIFCOPY)
+#define NPY_ARRAY_IN_FARRAY    (NPY_ARRAY_FARRAY_RO)
+#define NPY_ARRAY_OUT_FARRAY   (NPY_ARRAY_FARRAY)
+#define NPY_ARRAY_INOUT_FARRAY (NPY_ARRAY_FARRAY)
+#define NPY_ARRAY_INOUT_FARRAY2 (NPY_ARRAY_FARRAY | \
+                                NPY_ARRAY_WRITEBACKIFCOPY)
+
+#define NPY_ARRAY_UPDATE_ALL   (NPY_ARRAY_C_CONTIGUOUS | \
+                                NPY_ARRAY_F_CONTIGUOUS | \
+                                NPY_ARRAY_ALIGNED)
+
+/* This flag is for the array interface, not PyArrayObject */
+#define NPY_ARR_HAS_DESCR  0x0800
+
+
+
+
+/*
+ * Size of internal buffers used for alignment Make BUFSIZE a multiple
+ * of sizeof(npy_cdouble) -- usually 16 so that ufunc buffers are aligned
+ */
+#define NPY_MIN_BUFSIZE ((int)sizeof(npy_cdouble))
+#define NPY_MAX_BUFSIZE (((int)sizeof(npy_cdouble))*1000000)
+#define NPY_BUFSIZE 8192
+/* buffer stress test size: */
+/*#define NPY_BUFSIZE 17*/
+
+/*
+ * C API: consists of Macros and functions.  The MACROS are defined
+ * here.
+ */
+
+
+#define PyArray_ISCONTIGUOUS(m) PyArray_CHKFLAGS((m), NPY_ARRAY_C_CONTIGUOUS)
+#define PyArray_ISWRITEABLE(m) PyArray_CHKFLAGS((m), NPY_ARRAY_WRITEABLE)
+#define PyArray_ISALIGNED(m) PyArray_CHKFLAGS((m), NPY_ARRAY_ALIGNED)
+
+#define PyArray_IS_C_CONTIGUOUS(m) PyArray_CHKFLAGS((m), NPY_ARRAY_C_CONTIGUOUS)
+#define PyArray_IS_F_CONTIGUOUS(m) PyArray_CHKFLAGS((m), NPY_ARRAY_F_CONTIGUOUS)
+
+/* the variable is used in some places, so always define it */
+#define NPY_BEGIN_THREADS_DEF PyThreadState *_save=NULL;
+#if NPY_ALLOW_THREADS
+#define NPY_BEGIN_ALLOW_THREADS Py_BEGIN_ALLOW_THREADS
+#define NPY_END_ALLOW_THREADS Py_END_ALLOW_THREADS
+#define NPY_BEGIN_THREADS do {_save = PyEval_SaveThread();} while (0);
+#define NPY_END_THREADS   do { if (_save) \
+                { PyEval_RestoreThread(_save); _save = NULL;} } while (0);
+#define NPY_BEGIN_THREADS_THRESHOLDED(loop_size) do { if ((loop_size) > 500) \
+                { _save = PyEval_SaveThread();} } while (0);
+
+
+#define NPY_ALLOW_C_API_DEF  PyGILState_STATE __save__;
+#define NPY_ALLOW_C_API      do {__save__ = PyGILState_Ensure();} while (0);
+#define NPY_DISABLE_C_API    do {PyGILState_Release(__save__);} while (0);
+#else
+#define NPY_BEGIN_ALLOW_THREADS
+#define NPY_END_ALLOW_THREADS
+#define NPY_BEGIN_THREADS
+#define NPY_END_THREADS
+#define NPY_BEGIN_THREADS_THRESHOLDED(loop_size)
+#define NPY_BEGIN_THREADS_DESCR(dtype)
+#define NPY_END_THREADS_DESCR(dtype)
+#define NPY_ALLOW_C_API_DEF
+#define NPY_ALLOW_C_API
+#define NPY_DISABLE_C_API
+#endif
+
+/**********************************
+ * The nditer object, added in 1.6
+ **********************************/
+
+/* The actual structure of the iterator is an internal detail */
+typedef struct NpyIter_InternalOnly NpyIter;
+
+/* Iterator function pointers that may be specialized */
+typedef int (NpyIter_IterNextFunc)(NpyIter *iter);
+typedef void (NpyIter_GetMultiIndexFunc)(NpyIter *iter,
+                                      npy_intp *outcoords);
+
+/*** Global flags that may be passed to the iterator constructors ***/
+
+/* Track an index representing C order */
+#define NPY_ITER_C_INDEX                    0x00000001
+/* Track an index representing Fortran order */
+#define NPY_ITER_F_INDEX                    0x00000002
+/* Track a multi-index */
+#define NPY_ITER_MULTI_INDEX                0x00000004
+/* User code external to the iterator does the 1-dimensional innermost loop */
+#define NPY_ITER_EXTERNAL_LOOP              0x00000008
+/* Convert all the operands to a common data type */
+#define NPY_ITER_COMMON_DTYPE               0x00000010
+/* Operands may hold references, requiring API access during iteration */
+#define NPY_ITER_REFS_OK                    0x00000020
+/* Zero-sized operands should be permitted, iteration checks IterSize for 0 */
+#define NPY_ITER_ZEROSIZE_OK                0x00000040
+/* Permits reductions (size-0 stride with dimension size > 1) */
+#define NPY_ITER_REDUCE_OK                  0x00000080
+/* Enables sub-range iteration */
+#define NPY_ITER_RANGED                     0x00000100
+/* Enables buffering */
+#define NPY_ITER_BUFFERED                   0x00000200
+/* When buffering is enabled, grows the inner loop if possible */
+#define NPY_ITER_GROWINNER                  0x00000400
+/* Delay allocation of buffers until first Reset* call */
+#define NPY_ITER_DELAY_BUFALLOC             0x00000800
+/* When NPY_KEEPORDER is specified, disable reversing negative-stride axes */
+#define NPY_ITER_DONT_NEGATE_STRIDES        0x00001000
+/*
+ * If output operands overlap with other operands (based on heuristics that
+ * has false positives but no false negatives), make temporary copies to
+ * eliminate overlap.
+ */
+#define NPY_ITER_COPY_IF_OVERLAP            0x00002000
+
+/*** Per-operand flags that may be passed to the iterator constructors ***/
+
+/* The operand will be read from and written to */
+#define NPY_ITER_READWRITE                  0x00010000
+/* The operand will only be read from */
+#define NPY_ITER_READONLY                   0x00020000
+/* The operand will only be written to */
+#define NPY_ITER_WRITEONLY                  0x00040000
+/* The operand's data must be in native byte order */
+#define NPY_ITER_NBO                        0x00080000
+/* The operand's data must be aligned */
+#define NPY_ITER_ALIGNED                    0x00100000
+/* The operand's data must be contiguous (within the inner loop) */
+#define NPY_ITER_CONTIG                     0x00200000
+/* The operand may be copied to satisfy requirements */
+#define NPY_ITER_COPY                       0x00400000
+/* The operand may be copied with WRITEBACKIFCOPY to satisfy requirements */
+#define NPY_ITER_UPDATEIFCOPY               0x00800000
+/* Allocate the operand if it is NULL */
+#define NPY_ITER_ALLOCATE                   0x01000000
+/* If an operand is allocated, don't use any subtype */
+#define NPY_ITER_NO_SUBTYPE                 0x02000000
+/* This is a virtual array slot, operand is NULL but temporary data is there */
+#define NPY_ITER_VIRTUAL                    0x04000000
+/* Require that the dimension match the iterator dimensions exactly */
+#define NPY_ITER_NO_BROADCAST               0x08000000
+/* A mask is being used on this array, affects buffer -> array copy */
+#define NPY_ITER_WRITEMASKED                0x10000000
+/* This array is the mask for all WRITEMASKED operands */
+#define NPY_ITER_ARRAYMASK                  0x20000000
+/* Assume iterator order data access for COPY_IF_OVERLAP */
+#define NPY_ITER_OVERLAP_ASSUME_ELEMENTWISE 0x40000000
+
+#define NPY_ITER_GLOBAL_FLAGS               0x0000ffff
+#define NPY_ITER_PER_OP_FLAGS               0xffff0000
+
+
+/*****************************
+ * Basic iterator object
+ *****************************/
+
+/* FWD declaration */
+typedef struct PyArrayIterObject_tag PyArrayIterObject;
+
+/*
+ * type of the function which translates a set of coordinates to a
+ * pointer to the data
+ */
+typedef char* (*npy_iter_get_dataptr_t)(
+        PyArrayIterObject* iter, const npy_intp*);
+
+struct PyArrayIterObject_tag {
+        PyObject_HEAD
+        int               nd_m1;            /* number of dimensions - 1 */
+        npy_intp          index, size;
+        npy_intp          coordinates[NPY_MAXDIMS_LEGACY_ITERS];/* N-dimensional loop */
+        npy_intp          dims_m1[NPY_MAXDIMS_LEGACY_ITERS];    /* ao->dimensions - 1 */
+        npy_intp          strides[NPY_MAXDIMS_LEGACY_ITERS];    /* ao->strides or fake */
+        npy_intp          backstrides[NPY_MAXDIMS_LEGACY_ITERS];/* how far to jump back */
+        npy_intp          factors[NPY_MAXDIMS_LEGACY_ITERS];     /* shape factors */
+        PyArrayObject     *ao;
+        char              *dataptr;        /* pointer to current item*/
+        npy_bool          contiguous;
+
+        npy_intp          bounds[NPY_MAXDIMS_LEGACY_ITERS][2];
+        npy_intp          limits[NPY_MAXDIMS_LEGACY_ITERS][2];
+        npy_intp          limits_sizes[NPY_MAXDIMS_LEGACY_ITERS];
+        npy_iter_get_dataptr_t translate;
+} ;
+
+
+/* Iterator API */
+#define PyArrayIter_Check(op) PyObject_TypeCheck((op), &PyArrayIter_Type)
+
+#define _PyAIT(it) ((PyArrayIterObject *)(it))
+#define PyArray_ITER_RESET(it) do { \
+        _PyAIT(it)->index = 0; \
+        _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao); \
+        memset(_PyAIT(it)->coordinates, 0, \
+               (_PyAIT(it)->nd_m1+1)*sizeof(npy_intp)); \
+} while (0)
+
+#define _PyArray_ITER_NEXT1(it) do { \
+        (it)->dataptr += _PyAIT(it)->strides[0]; \
+        (it)->coordinates[0]++; \
+} while (0)
+
+#define _PyArray_ITER_NEXT2(it) do { \
+        if ((it)->coordinates[1] < (it)->dims_m1[1]) { \
+                (it)->coordinates[1]++; \
+                (it)->dataptr += (it)->strides[1]; \
+        } \
+        else { \
+                (it)->coordinates[1] = 0; \
+                (it)->coordinates[0]++; \
+                (it)->dataptr += (it)->strides[0] - \
+                        (it)->backstrides[1]; \
+        } \
+} while (0)
+
+#define PyArray_ITER_NEXT(it) do { \
+        _PyAIT(it)->index++; \
+        if (_PyAIT(it)->nd_m1 == 0) { \
+                _PyArray_ITER_NEXT1(_PyAIT(it)); \
+        } \
+        else if (_PyAIT(it)->contiguous) \
+                _PyAIT(it)->dataptr += PyArray_ITEMSIZE(_PyAIT(it)->ao); \
+        else if (_PyAIT(it)->nd_m1 == 1) { \
+                _PyArray_ITER_NEXT2(_PyAIT(it)); \
+        } \
+        else { \
+                int __npy_i; \
+                for (__npy_i=_PyAIT(it)->nd_m1; __npy_i >= 0; __npy_i--) { \
+                        if (_PyAIT(it)->coordinates[__npy_i] < \
+                            _PyAIT(it)->dims_m1[__npy_i]) { \
+                                _PyAIT(it)->coordinates[__npy_i]++; \
+                                _PyAIT(it)->dataptr += \
+                                        _PyAIT(it)->strides[__npy_i]; \
+                                break; \
+                        } \
+                        else { \
+                                _PyAIT(it)->coordinates[__npy_i] = 0; \
+                                _PyAIT(it)->dataptr -= \
+                                        _PyAIT(it)->backstrides[__npy_i]; \
+                        } \
+                } \
+        } \
+} while (0)
+
+#define PyArray_ITER_GOTO(it, destination) do { \
+        int __npy_i; \
+        _PyAIT(it)->index = 0; \
+        _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao); \
+        for (__npy_i = _PyAIT(it)->nd_m1; __npy_i>=0; __npy_i--) { \
+                if (destination[__npy_i] < 0) { \
+                        destination[__npy_i] += \
+                                _PyAIT(it)->dims_m1[__npy_i]+1; \
+                } \
+                _PyAIT(it)->dataptr += destination[__npy_i] * \
+                        _PyAIT(it)->strides[__npy_i]; \
+                _PyAIT(it)->coordinates[__npy_i] = \
+                        destination[__npy_i]; \
+                _PyAIT(it)->index += destination[__npy_i] * \
+                        ( __npy_i==_PyAIT(it)->nd_m1 ? 1 : \
+                          _PyAIT(it)->dims_m1[__npy_i+1]+1) ; \
+        } \
+} while (0)
+
+#define PyArray_ITER_GOTO1D(it, ind) do { \
+        int __npy_i; \
+        npy_intp __npy_ind = (npy_intp)(ind); \
+        if (__npy_ind < 0) __npy_ind += _PyAIT(it)->size; \
+        _PyAIT(it)->index = __npy_ind; \
+        if (_PyAIT(it)->nd_m1 == 0) { \
+                _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao) + \
+                        __npy_ind * _PyAIT(it)->strides[0]; \
+        } \
+        else if (_PyAIT(it)->contiguous) \
+                _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao) + \
+                        __npy_ind * PyArray_ITEMSIZE(_PyAIT(it)->ao); \
+        else { \
+                _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao); \
+                for (__npy_i = 0; __npy_i<=_PyAIT(it)->nd_m1; \
+                     __npy_i++) { \
+                        _PyAIT(it)->coordinates[__npy_i] = \
+                                (__npy_ind / _PyAIT(it)->factors[__npy_i]); \
+                        _PyAIT(it)->dataptr += \
+                                (__npy_ind / _PyAIT(it)->factors[__npy_i]) \
+                                * _PyAIT(it)->strides[__npy_i]; \
+                        __npy_ind %= _PyAIT(it)->factors[__npy_i]; \
+                } \
+        } \
+} while (0)
+
+#define PyArray_ITER_DATA(it) ((void *)(_PyAIT(it)->dataptr))
+
+#define PyArray_ITER_NOTDONE(it) (_PyAIT(it)->index < _PyAIT(it)->size)
+
+
+/*
+ * Any object passed to PyArray_Broadcast must be binary compatible
+ * with this structure.
+ */
+
+typedef struct {
+        PyObject_HEAD
+        int                  numiter;                 /* number of iters */
+        npy_intp             size;                    /* broadcasted size */
+        npy_intp             index;                   /* current index */
+        int                  nd;                      /* number of dims */
+        npy_intp             dimensions[NPY_MAXDIMS_LEGACY_ITERS]; /* dimensions */
+        /*
+         * Space for the individual iterators, do not specify size publicly
+         * to allow changing it more easily.
+         * One reason is that Cython uses this for checks and only allows
+         * growing structs (as of Cython 3.0.6).  It also allows NPY_MAXARGS
+         * to be runtime dependent.
+         */
+#if (defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD)
+        PyArrayIterObject    *iters[64];
+#elif defined(__cplusplus)
+        /*
+         * C++ doesn't strictly support flexible members and gives compilers
+         * warnings (pedantic only), so we lie.  We can't make it 64 because
+         * then Cython is unhappy (larger struct at runtime is OK smaller not).
+         */
+        PyArrayIterObject    *iters[32];
+#else
+        PyArrayIterObject    *iters[];
+#endif
+} PyArrayMultiIterObject;
+
+#define _PyMIT(m) ((PyArrayMultiIterObject *)(m))
+#define PyArray_MultiIter_RESET(multi) do {                                   \
+        int __npy_mi;                                                         \
+        _PyMIT(multi)->index = 0;                                             \
+        for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter;  __npy_mi++) {    \
+                PyArray_ITER_RESET(_PyMIT(multi)->iters[__npy_mi]);           \
+        }                                                                     \
+} while (0)
+
+#define PyArray_MultiIter_NEXT(multi) do {                                    \
+        int __npy_mi;                                                         \
+        _PyMIT(multi)->index++;                                               \
+        for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter;   __npy_mi++) {   \
+                PyArray_ITER_NEXT(_PyMIT(multi)->iters[__npy_mi]);            \
+        }                                                                     \
+} while (0)
+
+#define PyArray_MultiIter_GOTO(multi, dest) do {                            \
+        int __npy_mi;                                                       \
+        for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter; __npy_mi++) {   \
+                PyArray_ITER_GOTO(_PyMIT(multi)->iters[__npy_mi], dest);    \
+        }                                                                   \
+        _PyMIT(multi)->index = _PyMIT(multi)->iters[0]->index;              \
+} while (0)
+
+#define PyArray_MultiIter_GOTO1D(multi, ind) do {                          \
+        int __npy_mi;                                                      \
+        for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter; __npy_mi++) {  \
+                PyArray_ITER_GOTO1D(_PyMIT(multi)->iters[__npy_mi], ind);  \
+        }                                                                  \
+        _PyMIT(multi)->index = _PyMIT(multi)->iters[0]->index;             \
+} while (0)
+
+#define PyArray_MultiIter_DATA(multi, i)                \
+        ((void *)(_PyMIT(multi)->iters[i]->dataptr))
+
+#define PyArray_MultiIter_NEXTi(multi, i)               \
+        PyArray_ITER_NEXT(_PyMIT(multi)->iters[i])
+
+#define PyArray_MultiIter_NOTDONE(multi)                \
+        (_PyMIT(multi)->index < _PyMIT(multi)->size)
+
+
+static NPY_INLINE int
+PyArray_MultiIter_NUMITER(PyArrayMultiIterObject *multi)
+{
+    return multi->numiter;
+}
+
+
+static NPY_INLINE npy_intp
+PyArray_MultiIter_SIZE(PyArrayMultiIterObject *multi)
+{
+    return multi->size;
+}
+
+
+static NPY_INLINE npy_intp
+PyArray_MultiIter_INDEX(PyArrayMultiIterObject *multi)
+{
+    return multi->index;
+}
+
+
+static NPY_INLINE int
+PyArray_MultiIter_NDIM(PyArrayMultiIterObject *multi)
+{
+    return multi->nd;
+}
+
+
+static NPY_INLINE npy_intp *
+PyArray_MultiIter_DIMS(PyArrayMultiIterObject *multi)
+{
+    return multi->dimensions;
+}
+
+
+static NPY_INLINE void **
+PyArray_MultiIter_ITERS(PyArrayMultiIterObject *multi)
+{
+    return (void**)multi->iters;
+}
+
+
+enum {
+    NPY_NEIGHBORHOOD_ITER_ZERO_PADDING,
+    NPY_NEIGHBORHOOD_ITER_ONE_PADDING,
+    NPY_NEIGHBORHOOD_ITER_CONSTANT_PADDING,
+    NPY_NEIGHBORHOOD_ITER_CIRCULAR_PADDING,
+    NPY_NEIGHBORHOOD_ITER_MIRROR_PADDING
+};
+
+typedef struct {
+    PyObject_HEAD
+
+    /*
+     * PyArrayIterObject part: keep this in this exact order
+     */
+    int               nd_m1;            /* number of dimensions - 1 */
+    npy_intp          index, size;
+    npy_intp          coordinates[NPY_MAXDIMS_LEGACY_ITERS];/* N-dimensional loop */
+    npy_intp          dims_m1[NPY_MAXDIMS_LEGACY_ITERS];    /* ao->dimensions - 1 */
+    npy_intp          strides[NPY_MAXDIMS_LEGACY_ITERS];    /* ao->strides or fake */
+    npy_intp          backstrides[NPY_MAXDIMS_LEGACY_ITERS];/* how far to jump back */
+    npy_intp          factors[NPY_MAXDIMS_LEGACY_ITERS];     /* shape factors */
+    PyArrayObject     *ao;
+    char              *dataptr;        /* pointer to current item*/
+    npy_bool          contiguous;
+
+    npy_intp          bounds[NPY_MAXDIMS_LEGACY_ITERS][2];
+    npy_intp          limits[NPY_MAXDIMS_LEGACY_ITERS][2];
+    npy_intp          limits_sizes[NPY_MAXDIMS_LEGACY_ITERS];
+    npy_iter_get_dataptr_t translate;
+
+    /*
+     * New members
+     */
+    npy_intp nd;
+
+    /* Dimensions is the dimension of the array */
+    npy_intp dimensions[NPY_MAXDIMS_LEGACY_ITERS];
+
+    /*
+     * Neighborhood points coordinates are computed relatively to the
+     * point pointed by _internal_iter
+     */
+    PyArrayIterObject* _internal_iter;
+    /*
+     * To keep a reference to the representation of the constant value
+     * for constant padding
+     */
+    char* constant;
+
+    int mode;
+} PyArrayNeighborhoodIterObject;
+
+/*
+ * Neighborhood iterator API
+ */
+
+/* General: those work for any mode */
+static inline int
+PyArrayNeighborhoodIter_Reset(PyArrayNeighborhoodIterObject* iter);
+static inline int
+PyArrayNeighborhoodIter_Next(PyArrayNeighborhoodIterObject* iter);
+#if 0
+static inline int
+PyArrayNeighborhoodIter_Next2D(PyArrayNeighborhoodIterObject* iter);
+#endif
+
+/*
+ * Include inline implementations - functions defined there are not
+ * considered public API
+ */
+#define NUMPY_CORE_INCLUDE_NUMPY__NEIGHBORHOOD_IMP_H_
+#include "_neighborhood_iterator_imp.h"
+#undef NUMPY_CORE_INCLUDE_NUMPY__NEIGHBORHOOD_IMP_H_
+
+
+
+/* The default array type */
+#define NPY_DEFAULT_TYPE NPY_DOUBLE
+/* default integer type defined in npy_2_compat header */
+
+/*
+ * All sorts of useful ways to look into a PyArrayObject. It is recommended
+ * to use PyArrayObject * objects instead of always casting from PyObject *,
+ * for improved type checking.
+ *
+ * In many cases here the macro versions of the accessors are deprecated,
+ * but can't be immediately changed to inline functions because the
+ * preexisting macros accept PyObject * and do automatic casts. Inline
+ * functions accepting PyArrayObject * provides for some compile-time
+ * checking of correctness when working with these objects in C.
+ */
+
+#define PyArray_ISONESEGMENT(m) (PyArray_CHKFLAGS(m, NPY_ARRAY_C_CONTIGUOUS) || \
+                                 PyArray_CHKFLAGS(m, NPY_ARRAY_F_CONTIGUOUS))
+
+#define PyArray_ISFORTRAN(m) (PyArray_CHKFLAGS(m, NPY_ARRAY_F_CONTIGUOUS) && \
+                             (!PyArray_CHKFLAGS(m, NPY_ARRAY_C_CONTIGUOUS)))
+
+#define PyArray_FORTRAN_IF(m) ((PyArray_CHKFLAGS(m, NPY_ARRAY_F_CONTIGUOUS) ? \
+                               NPY_ARRAY_F_CONTIGUOUS : 0))
+
+static inline int
+PyArray_NDIM(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->nd;
+}
+
+static inline void *
+PyArray_DATA(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->data;
+}
+
+static inline char *
+PyArray_BYTES(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->data;
+}
+
+static inline npy_intp *
+PyArray_DIMS(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->dimensions;
+}
+
+static inline npy_intp *
+PyArray_STRIDES(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->strides;
+}
+
+static inline npy_intp
+PyArray_DIM(const PyArrayObject *arr, int idim)
+{
+    return ((PyArrayObject_fields *)arr)->dimensions[idim];
+}
+
+static inline npy_intp
+PyArray_STRIDE(const PyArrayObject *arr, int istride)
+{
+    return ((PyArrayObject_fields *)arr)->strides[istride];
+}
+
+static inline NPY_RETURNS_BORROWED_REF PyObject *
+PyArray_BASE(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->base;
+}
+
+static inline NPY_RETURNS_BORROWED_REF PyArray_Descr *
+PyArray_DESCR(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->descr;
+}
+
+static inline int
+PyArray_FLAGS(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->flags;
+}
+
+
+static inline int
+PyArray_TYPE(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->descr->type_num;
+}
+
+static inline int
+PyArray_CHKFLAGS(const PyArrayObject *arr, int flags)
+{
+    return (PyArray_FLAGS(arr) & flags) == flags;
+}
+
+static inline PyArray_Descr *
+PyArray_DTYPE(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->descr;
+}
+
+static inline npy_intp *
+PyArray_SHAPE(const PyArrayObject *arr)
+{
+    return ((PyArrayObject_fields *)arr)->dimensions;
+}
+
+/*
+ * Enables the specified array flags. Does no checking,
+ * assumes you know what you're doing.
+ */
+static inline void
+PyArray_ENABLEFLAGS(PyArrayObject *arr, int flags)
+{
+    ((PyArrayObject_fields *)arr)->flags |= flags;
+}
+
+/*
+ * Clears the specified array flags. Does no checking,
+ * assumes you know what you're doing.
+ */
+static inline void
+PyArray_CLEARFLAGS(PyArrayObject *arr, int flags)
+{
+    ((PyArrayObject_fields *)arr)->flags &= ~flags;
+}
+
+#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION
+    static inline NPY_RETURNS_BORROWED_REF PyObject *
+    PyArray_HANDLER(PyArrayObject *arr)
+    {
+        return ((PyArrayObject_fields *)arr)->mem_handler;
+    }
+#endif
+
+#define PyTypeNum_ISBOOL(type) ((type) == NPY_BOOL)
+
+#define PyTypeNum_ISUNSIGNED(type) (((type) == NPY_UBYTE) ||   \
+                                 ((type) == NPY_USHORT) ||     \
+                                 ((type) == NPY_UINT) ||       \
+                                 ((type) == NPY_ULONG) ||      \
+                                 ((type) == NPY_ULONGLONG))
+
+#define PyTypeNum_ISSIGNED(type) (((type) == NPY_BYTE) ||      \
+                               ((type) == NPY_SHORT) ||        \
+                               ((type) == NPY_INT) ||          \
+                               ((type) == NPY_LONG) ||         \
+                               ((type) == NPY_LONGLONG))
+
+#define PyTypeNum_ISINTEGER(type) (((type) >= NPY_BYTE) &&     \
+                                ((type) <= NPY_ULONGLONG))
+
+#define PyTypeNum_ISFLOAT(type) ((((type) >= NPY_FLOAT) && \
+                              ((type) <= NPY_LONGDOUBLE)) || \
+                              ((type) == NPY_HALF))
+
+#define PyTypeNum_ISNUMBER(type) (((type) <= NPY_CLONGDOUBLE) || \
+                                  ((type) == NPY_HALF))
+
+#define PyTypeNum_ISSTRING(type) (((type) == NPY_STRING) ||    \
+                                  ((type) == NPY_UNICODE))
+
+#define PyTypeNum_ISCOMPLEX(type) (((type) >= NPY_CFLOAT) &&   \
+                                ((type) <= NPY_CLONGDOUBLE))
+
+#define PyTypeNum_ISFLEXIBLE(type) (((type) >=NPY_STRING) &&  \
+                                    ((type) <=NPY_VOID))
+
+#define PyTypeNum_ISDATETIME(type) (((type) >=NPY_DATETIME) &&  \
+                                    ((type) <=NPY_TIMEDELTA))
+
+#define PyTypeNum_ISUSERDEF(type) (((type) >= NPY_USERDEF) && \
+                                   ((type) < NPY_USERDEF+     \
+                                    NPY_NUMUSERTYPES))
+
+#define PyTypeNum_ISEXTENDED(type) (PyTypeNum_ISFLEXIBLE(type) ||  \
+                                    PyTypeNum_ISUSERDEF(type))
+
+#define PyTypeNum_ISOBJECT(type) ((type) == NPY_OBJECT)
+
+
+#define PyDataType_ISLEGACY(dtype) ((dtype)->type_num < NPY_VSTRING && ((dtype)->type_num >= 0))
+#define PyDataType_ISBOOL(obj) PyTypeNum_ISBOOL(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISUNSIGNED(obj) PyTypeNum_ISUNSIGNED(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISSIGNED(obj) PyTypeNum_ISSIGNED(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISINTEGER(obj) PyTypeNum_ISINTEGER(((PyArray_Descr*)(obj))->type_num )
+#define PyDataType_ISFLOAT(obj) PyTypeNum_ISFLOAT(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISNUMBER(obj) PyTypeNum_ISNUMBER(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISSTRING(obj) PyTypeNum_ISSTRING(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISCOMPLEX(obj) PyTypeNum_ISCOMPLEX(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISFLEXIBLE(obj) PyTypeNum_ISFLEXIBLE(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISDATETIME(obj) PyTypeNum_ISDATETIME(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISUSERDEF(obj) PyTypeNum_ISUSERDEF(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISEXTENDED(obj) PyTypeNum_ISEXTENDED(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_ISOBJECT(obj) PyTypeNum_ISOBJECT(((PyArray_Descr*)(obj))->type_num)
+#define PyDataType_MAKEUNSIZED(dtype) ((dtype)->elsize = 0)
+/*
+ * PyDataType_* FLAGS, FLACHK, REFCHK, HASFIELDS, HASSUBARRAY, UNSIZED,
+ * SUBARRAY, NAMES, FIELDS, C_METADATA, and METADATA require version specific
+ * lookup and are defined in npy_2_compat.h.
+ */
+
+
+#define PyArray_ISBOOL(obj) PyTypeNum_ISBOOL(PyArray_TYPE(obj))
+#define PyArray_ISUNSIGNED(obj) PyTypeNum_ISUNSIGNED(PyArray_TYPE(obj))
+#define PyArray_ISSIGNED(obj) PyTypeNum_ISSIGNED(PyArray_TYPE(obj))
+#define PyArray_ISINTEGER(obj) PyTypeNum_ISINTEGER(PyArray_TYPE(obj))
+#define PyArray_ISFLOAT(obj) PyTypeNum_ISFLOAT(PyArray_TYPE(obj))
+#define PyArray_ISNUMBER(obj) PyTypeNum_ISNUMBER(PyArray_TYPE(obj))
+#define PyArray_ISSTRING(obj) PyTypeNum_ISSTRING(PyArray_TYPE(obj))
+#define PyArray_ISCOMPLEX(obj) PyTypeNum_ISCOMPLEX(PyArray_TYPE(obj))
+#define PyArray_ISFLEXIBLE(obj) PyTypeNum_ISFLEXIBLE(PyArray_TYPE(obj))
+#define PyArray_ISDATETIME(obj) PyTypeNum_ISDATETIME(PyArray_TYPE(obj))
+#define PyArray_ISUSERDEF(obj) PyTypeNum_ISUSERDEF(PyArray_TYPE(obj))
+#define PyArray_ISEXTENDED(obj) PyTypeNum_ISEXTENDED(PyArray_TYPE(obj))
+#define PyArray_ISOBJECT(obj) PyTypeNum_ISOBJECT(PyArray_TYPE(obj))
+#define PyArray_HASFIELDS(obj) PyDataType_HASFIELDS(PyArray_DESCR(obj))
+
+    /*
+     * FIXME: This should check for a flag on the data-type that
+     * states whether or not it is variable length.  Because the
+     * ISFLEXIBLE check is hard-coded to the built-in data-types.
+     */
+#define PyArray_ISVARIABLE(obj) PyTypeNum_ISFLEXIBLE(PyArray_TYPE(obj))
+
+#define PyArray_SAFEALIGNEDCOPY(obj) (PyArray_ISALIGNED(obj) && !PyArray_ISVARIABLE(obj))
+
+
+#define NPY_LITTLE '<'
+#define NPY_BIG '>'
+#define NPY_NATIVE '='
+#define NPY_SWAP 's'
+#define NPY_IGNORE '|'
+
+#if NPY_BYTE_ORDER == NPY_BIG_ENDIAN
+#define NPY_NATBYTE NPY_BIG
+#define NPY_OPPBYTE NPY_LITTLE
+#else
+#define NPY_NATBYTE NPY_LITTLE
+#define NPY_OPPBYTE NPY_BIG
+#endif
+
+#define PyArray_ISNBO(arg) ((arg) != NPY_OPPBYTE)
+#define PyArray_IsNativeByteOrder PyArray_ISNBO
+#define PyArray_ISNOTSWAPPED(m) PyArray_ISNBO(PyArray_DESCR(m)->byteorder)
+#define PyArray_ISBYTESWAPPED(m) (!PyArray_ISNOTSWAPPED(m))
+
+#define PyArray_FLAGSWAP(m, flags) (PyArray_CHKFLAGS(m, flags) &&       \
+                                    PyArray_ISNOTSWAPPED(m))
+
+#define PyArray_ISCARRAY(m) PyArray_FLAGSWAP(m, NPY_ARRAY_CARRAY)
+#define PyArray_ISCARRAY_RO(m) PyArray_FLAGSWAP(m, NPY_ARRAY_CARRAY_RO)
+#define PyArray_ISFARRAY(m) PyArray_FLAGSWAP(m, NPY_ARRAY_FARRAY)
+#define PyArray_ISFARRAY_RO(m) PyArray_FLAGSWAP(m, NPY_ARRAY_FARRAY_RO)
+#define PyArray_ISBEHAVED(m) PyArray_FLAGSWAP(m, NPY_ARRAY_BEHAVED)
+#define PyArray_ISBEHAVED_RO(m) PyArray_FLAGSWAP(m, NPY_ARRAY_ALIGNED)
+
+
+#define PyDataType_ISNOTSWAPPED(d) PyArray_ISNBO(((PyArray_Descr *)(d))->byteorder)
+#define PyDataType_ISBYTESWAPPED(d) (!PyDataType_ISNOTSWAPPED(d))
+
+/************************************************************
+ * A struct used by PyArray_CreateSortedStridePerm, new in 1.7.
+ ************************************************************/
+
+typedef struct {
+    npy_intp perm, stride;
+} npy_stride_sort_item;
+
+/************************************************************
+ * This is the form of the struct that's stored in the
+ * PyCapsule returned by an array's __array_struct__ attribute. See
+ * https://docs.scipy.org/doc/numpy/reference/arrays.interface.html for the full
+ * documentation.
+ ************************************************************/
+typedef struct {
+    int two;              /*
+                           * contains the integer 2 as a sanity
+                           * check
+                           */
+
+    int nd;               /* number of dimensions */
+
+    char typekind;        /*
+                           * kind in array --- character code of
+                           * typestr
+                           */
+
+    int itemsize;         /* size of each element */
+
+    int flags;            /*
+                           * how should be data interpreted. Valid
+                           * flags are CONTIGUOUS (1), F_CONTIGUOUS (2),
+                           * ALIGNED (0x100), NOTSWAPPED (0x200), and
+                           * WRITEABLE (0x400).  ARR_HAS_DESCR (0x800)
+                           * states that arrdescr field is present in
+                           * structure
+                           */
+
+    npy_intp *shape;       /*
+                            * A length-nd array of shape
+                            * information
+                            */
+
+    npy_intp *strides;    /* A length-nd array of stride information */
+
+    void *data;           /* A pointer to the first element of the array */
+
+    PyObject *descr;      /*
+                           * A list of fields or NULL (ignored if flags
+                           * does not have ARR_HAS_DESCR flag set)
+                           */
+} PyArrayInterface;
+
+
+/****************************************
+ * NpyString
+ *
+ * Types used by the NpyString API.
+ ****************************************/
+
+/*
+ * A "packed" encoded string. The string data must be accessed by first unpacking the string.
+ */
+typedef struct npy_packed_static_string npy_packed_static_string;
+
+/*
+ * An unpacked read-only view onto the data in a packed string
+ */
+typedef struct npy_unpacked_static_string {
+    size_t size;
+    const char *buf;
+} npy_static_string;
+
+/*
+ * Handles heap allocations for static strings.
+ */
+typedef struct npy_string_allocator npy_string_allocator;
+
+typedef struct {
+    PyArray_Descr base;
+    // The object representing a null value
+    PyObject *na_object;
+    // Flag indicating whether or not to coerce arbitrary objects to strings
+    char coerce;
+    // Flag indicating the na object is NaN-like
+    char has_nan_na;
+    // Flag indicating the na object is a string
+    char has_string_na;
+    // If nonzero, indicates that this instance is owned by an array already
+    char array_owned;
+    // The string data to use when a default string is needed
+    npy_static_string default_string;
+    // The name of the missing data object, if any
+    npy_static_string na_name;
+    // the allocator should only be directly accessed after
+    // acquiring the allocator_lock and the lock should
+    // be released immediately after the allocator is
+    // no longer needed
+    npy_string_allocator *allocator;
+} PyArray_StringDTypeObject;
+
+/*
+ * PyArray_DTypeMeta related definitions.
+ *
+ * As of now, this API is preliminary and will be extended as necessary.
+ */
+#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD
+    /*
+     * The Structures defined in this block are currently considered
+     * private API and may change without warning!
+     * Part of this (at least the size) is expected to be public API without
+     * further modifications.
+     */
+    /* TODO: Make this definition public in the API, as soon as its settled */
+    NPY_NO_EXPORT extern PyTypeObject PyArrayDTypeMeta_Type;
+
+    /*
+     * While NumPy DTypes would not need to be heap types the plan is to
+     * make DTypes available in Python at which point they will be heap types.
+     * Since we also wish to add fields to the DType class, this looks like
+     * a typical instance definition, but with PyHeapTypeObject instead of
+     * only the PyObject_HEAD.
+     * This must only be exposed very extremely careful consideration, since
+     * it is a fairly complex construct which may be better to allow
+     * refactoring of.
+     */
+    typedef struct {
+        PyHeapTypeObject super;
+
+        /*
+         * Most DTypes will have a singleton default instance, for the
+         * parametric legacy DTypes (bytes, string, void, datetime) this
+         * may be a pointer to the *prototype* instance?
+         */
+        PyArray_Descr *singleton;
+        /* Copy of the legacy DTypes type number, usually invalid. */
+        int type_num;
+
+        /* The type object of the scalar instances (may be NULL?) */
+        PyTypeObject *scalar_type;
+        /*
+         * DType flags to signal legacy, parametric, or
+         * abstract.  But plenty of space for additional information/flags.
+         */
+        npy_uint64 flags;
+
+        /*
+         * Use indirection in order to allow a fixed size for this struct.
+         * A stable ABI size makes creating a static DType less painful
+         * while also ensuring flexibility for all opaque API (with one
+         * indirection due the pointer lookup).
+         */
+        void *dt_slots;
+        void *reserved[3];
+    } PyArray_DTypeMeta;
+
+#endif  /* NPY_INTERNAL_BUILD */
+
+
+/*
+ * Use the keyword NPY_DEPRECATED_INCLUDES to ensure that the header files
+ * npy_*_*_deprecated_api.h are only included from here and nowhere else.
+ */
+#ifdef NPY_DEPRECATED_INCLUDES
+#error "Do not use the reserved keyword NPY_DEPRECATED_INCLUDES."
+#endif
+#define NPY_DEPRECATED_INCLUDES
+/*
+ * There is no file npy_1_8_deprecated_api.h since there are no additional
+ * deprecated API features in NumPy 1.8.
+ *
+ * Note to maintainers: insert code like the following in future NumPy
+ * versions.
+ *
+ * #if !defined(NPY_NO_DEPRECATED_API) || \
+ *     (NPY_NO_DEPRECATED_API < NPY_1_9_API_VERSION)
+ * #include "npy_1_9_deprecated_api.h"
+ * #endif
+ * Then in the npy_1_9_deprecated_api.h header add something like this
+ * --------------------
+ * #ifndef NPY_DEPRECATED_INCLUDES
+ * #error "Should never include npy_*_*_deprecated_api directly."
+ * #endif
+ * #ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_1_7_DEPRECATED_API_H_
+ * #define NUMPY_CORE_INCLUDE_NUMPY_NPY_1_7_DEPRECATED_API_H_
+ * 
+ * #ifndef NPY_NO_DEPRECATED_API
+ * #if defined(_WIN32)
+ * #define _WARN___STR2__(x) #x
+ * #define _WARN___STR1__(x) _WARN___STR2__(x)
+ * #define _WARN___LOC__ __FILE__ "(" _WARN___STR1__(__LINE__) ") : Warning Msg: "
+ * #pragma message(_WARN___LOC__"Using deprecated NumPy API, disable it with " \
+ *                          "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION")
+ * #else
+ * #warning "Using deprecated NumPy API, disable it with " \
+ *          "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION"
+ * #endif
+ * #endif
+ * --------------------
+ */
+#undef NPY_DEPRECATED_INCLUDES
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_2_compat.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_2_compat.h
new file mode 100644
index 0000000000000000000000000000000000000000..6a002f115b72318759fb5997835894b3610a4e23
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_2_compat.h
@@ -0,0 +1,249 @@
+/*
+ * This header file defines relevant features which:
+ * - Require runtime inspection depending on the NumPy version.
+ * - May be needed when compiling with an older version of NumPy to allow
+ *   a smooth transition.
+ *
+ * As such, it is shipped with NumPy 2.0, but designed to be vendored in full
+ * or parts by downstream projects.
+ *
+ * It must be included after any other includes.  `import_array()` must have
+ * been called in the scope or version dependency will misbehave, even when
+ * only `PyUFunc_` API is used.
+ *
+ * If required complicated defs (with inline functions) should be written as:
+ *
+ *     #if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+ *         Simple definition when NumPy 2.0 API is guaranteed.
+ *     #else
+ *         static inline definition of a 1.x compatibility shim
+ *         #if NPY_ABI_VERSION < 0x02000000
+ *            Make 1.x compatibility shim the public API (1.x only branch)
+ *         #else
+ *             Runtime dispatched version (1.x or 2.x)
+ *         #endif
+ *     #endif
+ *
+ * An internal build always passes NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+ */
+
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPAT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPAT_H_
+
+/*
+ * New macros for accessing real and complex part of a complex number can be
+ * found in "npy_2_complexcompat.h".
+ */
+
+
+/*
+ * This header is meant to be included by downstream directly for 1.x compat.
+ * In that case we need to ensure that users first included the full headers
+ * and not just `ndarraytypes.h`.
+ */
+
+#ifndef NPY_FEATURE_VERSION
+  #error "The NumPy 2 compat header requires `import_array()` for which "  \
+         "the `ndarraytypes.h` header include is not sufficient.  Please "  \
+         "include it after `numpy/ndarrayobject.h` or similar.\n"  \
+         "To simplify inclusion, you may use `PyArray_ImportNumPy()` " \
+         "which is defined in the compat header and is lightweight (can be)."
+#endif
+
+#if NPY_ABI_VERSION < 0x02000000
+  /*
+   * Define 2.0 feature version as it is needed below to decide whether we
+   * compile for both 1.x and 2.x (defining it guarantees 1.x only).
+   */
+  #define NPY_2_0_API_VERSION 0x00000012
+  /*
+   * If we are compiling with NumPy 1.x, PyArray_RUNTIME_VERSION so we
+   * pretend the `PyArray_RUNTIME_VERSION` is `NPY_FEATURE_VERSION`.
+   * This allows downstream to use `PyArray_RUNTIME_VERSION` if they need to.
+   */
+  #define PyArray_RUNTIME_VERSION NPY_FEATURE_VERSION
+  /* Compiling on NumPy 1.x where these are the same: */
+  #define PyArray_DescrProto PyArray_Descr
+#endif
+
+
+/*
+ * Define a better way to call `_import_array()` to simplify backporting as
+ * we now require imports more often (necessary to make ABI flexible).
+ */
+#ifdef import_array1
+
+static inline int
+PyArray_ImportNumPyAPI(void)
+{
+    if (NPY_UNLIKELY(PyArray_API == NULL)) {
+        import_array1(-1);
+    }
+    return 0;
+}
+
+#endif  /* import_array1 */
+
+
+/*
+ * NPY_DEFAULT_INT
+ *
+ * The default integer has changed, `NPY_DEFAULT_INT` is available at runtime
+ * for use as type number, e.g. `PyArray_DescrFromType(NPY_DEFAULT_INT)`.
+ *
+ * NPY_RAVEL_AXIS
+ *
+ * This was introduced in NumPy 2.0 to allow indicating that an axis should be
+ * raveled in an operation. Before NumPy 2.0, NPY_MAXDIMS was used for this purpose.
+ *
+ * NPY_MAXDIMS
+ *
+ * A constant indicating the maximum number dimensions allowed when creating
+ * an ndarray.
+ *
+ * NPY_NTYPES_LEGACY
+ *
+ * The number of built-in NumPy dtypes.
+ */
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+    #define NPY_DEFAULT_INT NPY_INTP
+    #define NPY_RAVEL_AXIS NPY_MIN_INT
+    #define NPY_MAXARGS 64
+
+#elif NPY_ABI_VERSION < 0x02000000
+    #define NPY_DEFAULT_INT NPY_LONG
+    #define NPY_RAVEL_AXIS 32
+    #define NPY_MAXARGS 32
+
+    /* Aliases of 2.x names to 1.x only equivalent names */
+    #define NPY_NTYPES NPY_NTYPES_LEGACY
+    #define PyArray_DescrProto PyArray_Descr
+    #define _PyArray_LegacyDescr PyArray_Descr
+    /* NumPy 2 definition always works, but add it for 1.x only */
+    #define PyDataType_ISLEGACY(dtype) (1)
+#else
+    #define NPY_DEFAULT_INT  \
+        (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION ? NPY_INTP : NPY_LONG)
+    #define NPY_RAVEL_AXIS  \
+        (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION ? NPY_MIN_INT : 32)
+    #define NPY_MAXARGS  \
+        (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION ? 64 : 32)
+#endif
+
+
+/*
+ * Access inline functions for descriptor fields.  Except for the first
+ * few fields, these needed to be moved (elsize, alignment) for
+ * additional space.  Or they are descriptor specific and are not generally
+ * available anymore (metadata, c_metadata, subarray, names, fields).
+ *
+ * Most of these are defined via the `DESCR_ACCESSOR` macro helper.
+ */
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION || NPY_ABI_VERSION < 0x02000000
+    /* Compiling for 1.x or 2.x only, direct field access is OK: */
+
+    static inline void
+    PyDataType_SET_ELSIZE(PyArray_Descr *dtype, npy_intp size)
+    {
+        dtype->elsize = size;
+    }
+
+    static inline npy_uint64
+    PyDataType_FLAGS(const PyArray_Descr *dtype)
+    {
+    #if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+        return dtype->flags;
+    #else
+        return (unsigned char)dtype->flags;  /* Need unsigned cast on 1.x */
+    #endif
+    }
+
+    #define DESCR_ACCESSOR(FIELD, field, type, legacy_only)    \
+        static inline type                                     \
+        PyDataType_##FIELD(const PyArray_Descr *dtype) {       \
+            if (legacy_only && !PyDataType_ISLEGACY(dtype)) {  \
+                return (type)0;                                \
+            }                                                  \
+            return ((_PyArray_LegacyDescr *)dtype)->field;     \
+        }
+#else  /* compiling for both 1.x and 2.x */
+
+    static inline void
+    PyDataType_SET_ELSIZE(PyArray_Descr *dtype, npy_intp size)
+    {
+        if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) {
+            ((_PyArray_DescrNumPy2 *)dtype)->elsize = size;
+        }
+        else {
+            ((PyArray_DescrProto *)dtype)->elsize = (int)size;
+        }
+    }
+
+    static inline npy_uint64
+    PyDataType_FLAGS(const PyArray_Descr *dtype)
+    {
+        if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) {
+            return ((_PyArray_DescrNumPy2 *)dtype)->flags;
+        }
+        else {
+            return (unsigned char)((PyArray_DescrProto *)dtype)->flags;
+        }
+    }
+
+    /* Cast to LegacyDescr always fine but needed when `legacy_only` */
+    #define DESCR_ACCESSOR(FIELD, field, type, legacy_only)        \
+        static inline type                                         \
+        PyDataType_##FIELD(const PyArray_Descr *dtype) {           \
+            if (legacy_only && !PyDataType_ISLEGACY(dtype)) {      \
+                return (type)0;                                    \
+            }                                                      \
+            if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) {  \
+                return ((_PyArray_LegacyDescr *)dtype)->field;     \
+            }                                                      \
+            else {                                                 \
+                return ((PyArray_DescrProto *)dtype)->field;       \
+            }                                                      \
+        }
+#endif
+
+DESCR_ACCESSOR(ELSIZE, elsize, npy_intp, 0)
+DESCR_ACCESSOR(ALIGNMENT, alignment, npy_intp, 0)
+DESCR_ACCESSOR(METADATA, metadata, PyObject *, 1)
+DESCR_ACCESSOR(SUBARRAY, subarray, PyArray_ArrayDescr *, 1)
+DESCR_ACCESSOR(NAMES, names, PyObject *, 1)
+DESCR_ACCESSOR(FIELDS, fields, PyObject *, 1)
+DESCR_ACCESSOR(C_METADATA, c_metadata, NpyAuxData *, 1)
+
+#undef DESCR_ACCESSOR
+
+
+#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD)
+#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION
+    static inline PyArray_ArrFuncs *
+    PyDataType_GetArrFuncs(const PyArray_Descr *descr)
+    {
+        return _PyDataType_GetArrFuncs(descr);
+    }
+#elif NPY_ABI_VERSION < 0x02000000
+    static inline PyArray_ArrFuncs *
+    PyDataType_GetArrFuncs(const PyArray_Descr *descr)
+    {
+        return descr->f;
+    }
+#else
+    static inline PyArray_ArrFuncs *
+    PyDataType_GetArrFuncs(const PyArray_Descr *descr)
+    {
+        if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) {
+            return _PyDataType_GetArrFuncs(descr);
+        }
+        else {
+            return ((PyArray_DescrProto *)descr)->f;
+        }
+    }
+#endif
+
+
+#endif  /* not internal build */
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPAT_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_2_complexcompat.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_2_complexcompat.h
new file mode 100644
index 0000000000000000000000000000000000000000..9002d5e13fe1222b241c9c0b61ac23936643968c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_2_complexcompat.h
@@ -0,0 +1,28 @@
+/* This header is designed to be copy-pasted into downstream packages, since it provides
+   a compatibility layer between the old C struct complex types and the new native C99
+   complex types. The new macros are in numpy/npy_math.h, which is why it is included here. */
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPLEXCOMPAT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPLEXCOMPAT_H_
+
+#include <numpy/npy_math.h>
+
+#ifndef NPY_CSETREALF
+#define NPY_CSETREALF(c, r) (c)->real = (r)
+#endif
+#ifndef NPY_CSETIMAGF
+#define NPY_CSETIMAGF(c, i) (c)->imag = (i)
+#endif
+#ifndef NPY_CSETREAL
+#define NPY_CSETREAL(c, r)  (c)->real = (r)
+#endif
+#ifndef NPY_CSETIMAG
+#define NPY_CSETIMAG(c, i)  (c)->imag = (i)
+#endif
+#ifndef NPY_CSETREALL
+#define NPY_CSETREALL(c, r) (c)->real = (r)
+#endif
+#ifndef NPY_CSETIMAGL
+#define NPY_CSETIMAGL(c, i) (c)->imag = (i)
+#endif
+
+#endif
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_3kcompat.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_3kcompat.h
new file mode 100644
index 0000000000000000000000000000000000000000..1c4ba37d9a1676ec63d1c6580479f928859b3ee9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_3kcompat.h
@@ -0,0 +1,374 @@
+/*
+ * This is a convenience header file providing compatibility utilities
+ * for supporting different minor versions of Python 3.
+ * It was originally used to support the transition from Python 2,
+ * hence the "3k" naming.
+ *
+ * If you want to use this for your own projects, it's recommended to make a
+ * copy of it. We don't provide backwards compatibility guarantees.
+ */
+
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_3KCOMPAT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_3KCOMPAT_H_
+
+#include <Python.h>
+#include <stdio.h>
+
+#include "npy_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Python13 removes _PyLong_AsInt */
+static inline int
+Npy__PyLong_AsInt(PyObject *obj)
+{
+    int overflow;
+    long result = PyLong_AsLongAndOverflow(obj, &overflow);
+
+    /* INT_MAX and INT_MIN are defined in Python.h */
+    if (overflow || result > INT_MAX || result < INT_MIN) {
+        /* XXX: could be cute and give a different
+           message for overflow == -1 */
+        PyErr_SetString(PyExc_OverflowError,
+                        "Python int too large to convert to C int");
+        return -1;
+    }
+    return (int)result;
+}
+
+#if defined _MSC_VER && _MSC_VER >= 1900
+
+#include <stdlib.h>
+
+/*
+ * Macros to protect CRT calls against instant termination when passed an
+ * invalid parameter (https://bugs.python.org/issue23524).
+ */
+extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler;
+#define NPY_BEGIN_SUPPRESS_IPH { _invalid_parameter_handler _Py_old_handler = \
+    _set_thread_local_invalid_parameter_handler(_Py_silent_invalid_parameter_handler);
+#define NPY_END_SUPPRESS_IPH _set_thread_local_invalid_parameter_handler(_Py_old_handler); }
+
+#else
+
+#define NPY_BEGIN_SUPPRESS_IPH
+#define NPY_END_SUPPRESS_IPH
+
+#endif /* _MSC_VER >= 1900 */
+
+/*
+ * PyFile_* compatibility
+ */
+
+/*
+ * Get a FILE* handle to the file represented by the Python object
+ */
+static inline FILE*
+npy_PyFile_Dup2(PyObject *file, char *mode, npy_off_t *orig_pos)
+{
+    int fd, fd2, unbuf;
+    Py_ssize_t fd2_tmp;
+    PyObject *ret, *os, *io, *io_raw;
+    npy_off_t pos;
+    FILE *handle;
+
+    /* Flush first to ensure things end up in the file in the correct order */
+    ret = PyObject_CallMethod(file, "flush", "");
+    if (ret == NULL) {
+        return NULL;
+    }
+    Py_DECREF(ret);
+    fd = PyObject_AsFileDescriptor(file);
+    if (fd == -1) {
+        return NULL;
+    }
+
+    /*
+     * The handle needs to be dup'd because we have to call fclose
+     * at the end
+     */
+    os = PyImport_ImportModule("os");
+    if (os == NULL) {
+        return NULL;
+    }
+    ret = PyObject_CallMethod(os, "dup", "i", fd);
+    Py_DECREF(os);
+    if (ret == NULL) {
+        return NULL;
+    }
+    fd2_tmp = PyNumber_AsSsize_t(ret, PyExc_IOError);
+    Py_DECREF(ret);
+    if (fd2_tmp == -1 && PyErr_Occurred()) {
+        return NULL;
+    }
+    if (fd2_tmp < INT_MIN || fd2_tmp > INT_MAX) {
+        PyErr_SetString(PyExc_IOError,
+                        "Getting an 'int' from os.dup() failed");
+        return NULL;
+    }
+    fd2 = (int)fd2_tmp;
+
+    /* Convert to FILE* handle */
+#ifdef _WIN32
+    NPY_BEGIN_SUPPRESS_IPH
+    handle = _fdopen(fd2, mode);
+    NPY_END_SUPPRESS_IPH
+#else
+    handle = fdopen(fd2, mode);
+#endif
+    if (handle == NULL) {
+        PyErr_SetString(PyExc_IOError,
+                        "Getting a FILE* from a Python file object via "
+                        "_fdopen failed. If you built NumPy, you probably "
+                        "linked with the wrong debug/release runtime");
+        return NULL;
+    }
+
+    /* Record the original raw file handle position */
+    *orig_pos = npy_ftell(handle);
+    if (*orig_pos == -1) {
+        /* The io module is needed to determine if buffering is used */
+        io = PyImport_ImportModule("io");
+        if (io == NULL) {
+            fclose(handle);
+            return NULL;
+        }
+        /* File object instances of RawIOBase are unbuffered */
+        io_raw = PyObject_GetAttrString(io, "RawIOBase");
+        Py_DECREF(io);
+        if (io_raw == NULL) {
+            fclose(handle);
+            return NULL;
+        }
+        unbuf = PyObject_IsInstance(file, io_raw);
+        Py_DECREF(io_raw);
+        if (unbuf == 1) {
+            /* Succeed if the IO is unbuffered */
+            return handle;
+        }
+        else {
+            PyErr_SetString(PyExc_IOError, "obtaining file position failed");
+            fclose(handle);
+            return NULL;
+        }
+    }
+
+    /* Seek raw handle to the Python-side position */
+    ret = PyObject_CallMethod(file, "tell", "");
+    if (ret == NULL) {
+        fclose(handle);
+        return NULL;
+    }
+    pos = PyLong_AsLongLong(ret);
+    Py_DECREF(ret);
+    if (PyErr_Occurred()) {
+        fclose(handle);
+        return NULL;
+    }
+    if (npy_fseek(handle, pos, SEEK_SET) == -1) {
+        PyErr_SetString(PyExc_IOError, "seeking file failed");
+        fclose(handle);
+        return NULL;
+    }
+    return handle;
+}
+
+/*
+ * Close the dup-ed file handle, and seek the Python one to the current position
+ */
+static inline int
+npy_PyFile_DupClose2(PyObject *file, FILE* handle, npy_off_t orig_pos)
+{
+    int fd, unbuf;
+    PyObject *ret, *io, *io_raw;
+    npy_off_t position;
+
+    position = npy_ftell(handle);
+
+    /* Close the FILE* handle */
+    fclose(handle);
+
+    /*
+     * Restore original file handle position, in order to not confuse
+     * Python-side data structures
+     */
+    fd = PyObject_AsFileDescriptor(file);
+    if (fd == -1) {
+        return -1;
+    }
+
+    if (npy_lseek(fd, orig_pos, SEEK_SET) == -1) {
+
+        /* The io module is needed to determine if buffering is used */
+        io = PyImport_ImportModule("io");
+        if (io == NULL) {
+            return -1;
+        }
+        /* File object instances of RawIOBase are unbuffered */
+        io_raw = PyObject_GetAttrString(io, "RawIOBase");
+        Py_DECREF(io);
+        if (io_raw == NULL) {
+            return -1;
+        }
+        unbuf = PyObject_IsInstance(file, io_raw);
+        Py_DECREF(io_raw);
+        if (unbuf == 1) {
+            /* Succeed if the IO is unbuffered */
+            return 0;
+        }
+        else {
+            PyErr_SetString(PyExc_IOError, "seeking file failed");
+            return -1;
+        }
+    }
+
+    if (position == -1) {
+        PyErr_SetString(PyExc_IOError, "obtaining file position failed");
+        return -1;
+    }
+
+    /* Seek Python-side handle to the FILE* handle position */
+    ret = PyObject_CallMethod(file, "seek", NPY_OFF_T_PYFMT "i", position, 0);
+    if (ret == NULL) {
+        return -1;
+    }
+    Py_DECREF(ret);
+    return 0;
+}
+
+static inline PyObject*
+npy_PyFile_OpenFile(PyObject *filename, const char *mode)
+{
+    PyObject *open;
+    open = PyDict_GetItemString(PyEval_GetBuiltins(), "open"); // noqa: borrowed-ref OK
+    if (open == NULL) {
+        return NULL;
+    }
+    return PyObject_CallFunction(open, "Os", filename, mode);
+}
+
+static inline int
+npy_PyFile_CloseFile(PyObject *file)
+{
+    PyObject *ret;
+
+    ret = PyObject_CallMethod(file, "close", NULL);
+    if (ret == NULL) {
+        return -1;
+    }
+    Py_DECREF(ret);
+    return 0;
+}
+
+/* This is a copy of _PyErr_ChainExceptions, which
+ *  is no longer exported from Python3.12
+ */
+static inline void
+npy_PyErr_ChainExceptions(PyObject *exc, PyObject *val, PyObject *tb)
+{
+    if (exc == NULL)
+        return;
+
+    if (PyErr_Occurred()) {
+        PyObject *exc2, *val2, *tb2;
+        PyErr_Fetch(&exc2, &val2, &tb2);
+        PyErr_NormalizeException(&exc, &val, &tb);
+        if (tb != NULL) {
+            PyException_SetTraceback(val, tb);
+            Py_DECREF(tb);
+        }
+        Py_DECREF(exc);
+        PyErr_NormalizeException(&exc2, &val2, &tb2);
+        PyException_SetContext(val2, val);
+        PyErr_Restore(exc2, val2, tb2);
+    }
+    else {
+        PyErr_Restore(exc, val, tb);
+    }
+}
+
+/* This is a copy of _PyErr_ChainExceptions, with:
+ *  __cause__ used instead of __context__
+ */
+static inline void
+npy_PyErr_ChainExceptionsCause(PyObject *exc, PyObject *val, PyObject *tb)
+{
+    if (exc == NULL)
+        return;
+
+    if (PyErr_Occurred()) {
+        PyObject *exc2, *val2, *tb2;
+        PyErr_Fetch(&exc2, &val2, &tb2);
+        PyErr_NormalizeException(&exc, &val, &tb);
+        if (tb != NULL) {
+            PyException_SetTraceback(val, tb);
+            Py_DECREF(tb);
+        }
+        Py_DECREF(exc);
+        PyErr_NormalizeException(&exc2, &val2, &tb2);
+        PyException_SetCause(val2, val);
+        PyErr_Restore(exc2, val2, tb2);
+    }
+    else {
+        PyErr_Restore(exc, val, tb);
+    }
+}
+
+/*
+ * PyCObject functions adapted to PyCapsules.
+ *
+ * The main job here is to get rid of the improved error handling
+ * of PyCapsules. It's a shame...
+ */
+static inline PyObject *
+NpyCapsule_FromVoidPtr(void *ptr, void (*dtor)(PyObject *))
+{
+    PyObject *ret = PyCapsule_New(ptr, NULL, dtor);
+    if (ret == NULL) {
+        PyErr_Clear();
+    }
+    return ret;
+}
+
+static inline PyObject *
+NpyCapsule_FromVoidPtrAndDesc(void *ptr, void* context, void (*dtor)(PyObject *))
+{
+    PyObject *ret = NpyCapsule_FromVoidPtr(ptr, dtor);
+    if (ret != NULL && PyCapsule_SetContext(ret, context) != 0) {
+        PyErr_Clear();
+        Py_DECREF(ret);
+        ret = NULL;
+    }
+    return ret;
+}
+
+static inline void *
+NpyCapsule_AsVoidPtr(PyObject *obj)
+{
+    void *ret = PyCapsule_GetPointer(obj, NULL);
+    if (ret == NULL) {
+        PyErr_Clear();
+    }
+    return ret;
+}
+
+static inline void *
+NpyCapsule_GetDesc(PyObject *obj)
+{
+    return PyCapsule_GetContext(obj);
+}
+
+static inline int
+NpyCapsule_Check(PyObject *ptr)
+{
+    return PyCapsule_CheckExact(ptr);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_3KCOMPAT_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_common.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_common.h
new file mode 100644
index 0000000000000000000000000000000000000000..7b2bd29e974b58c2c5f698a5502934bb347b4a00
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_common.h
@@ -0,0 +1,989 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_COMMON_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_COMMON_H_
+
+/* need Python.h for npy_intp, npy_uintp */
+#include <Python.h>
+
+/* numpconfig.h is auto-generated */
+#include "numpyconfig.h"
+#ifdef HAVE_NPY_CONFIG_H
+#include <npy_config.h>
+#endif
+
+/*
+ * using static inline modifiers when defining npy_math functions
+ * allows the compiler to make optimizations when possible
+ */
+#ifndef NPY_INLINE_MATH
+#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD
+    #define NPY_INLINE_MATH 1
+#else
+    #define NPY_INLINE_MATH 0
+#endif
+#endif
+
+/*
+ * gcc does not unroll even with -O3
+ * use with care, unrolling on modern cpus rarely speeds things up
+ */
+#ifdef HAVE_ATTRIBUTE_OPTIMIZE_UNROLL_LOOPS
+#define NPY_GCC_UNROLL_LOOPS \
+    __attribute__((optimize("unroll-loops")))
+#else
+#define NPY_GCC_UNROLL_LOOPS
+#endif
+
+/* highest gcc optimization level, enabled autovectorizer */
+#ifdef HAVE_ATTRIBUTE_OPTIMIZE_OPT_3
+#define NPY_GCC_OPT_3 __attribute__((optimize("O3")))
+#else
+#define NPY_GCC_OPT_3
+#endif
+
+/*
+ * mark an argument (starting from 1) that must not be NULL and is not checked
+ * DO NOT USE IF FUNCTION CHECKS FOR NULL!! the compiler will remove the check
+ */
+#ifdef HAVE_ATTRIBUTE_NONNULL
+#define NPY_GCC_NONNULL(n) __attribute__((nonnull(n)))
+#else
+#define NPY_GCC_NONNULL(n)
+#endif
+
+/*
+ * give a hint to the compiler which branch is more likely or unlikely
+ * to occur, e.g. rare error cases:
+ *
+ * if (NPY_UNLIKELY(failure == 0))
+ *    return NULL;
+ *
+ * the double !! is to cast the expression (e.g. NULL) to a boolean required by
+ * the intrinsic
+ */
+#ifdef HAVE___BUILTIN_EXPECT
+#define NPY_LIKELY(x) __builtin_expect(!!(x), 1)
+#define NPY_UNLIKELY(x) __builtin_expect(!!(x), 0)
+#else
+#define NPY_LIKELY(x) (x)
+#define NPY_UNLIKELY(x) (x)
+#endif
+
+#ifdef HAVE___BUILTIN_PREFETCH
+/* unlike _mm_prefetch also works on non-x86 */
+#define NPY_PREFETCH(x, rw, loc) __builtin_prefetch((x), (rw), (loc))
+#else
+#ifdef NPY_HAVE_SSE
+/* _MM_HINT_ET[01] (rw = 1) unsupported, only available in gcc >= 4.9 */
+#define NPY_PREFETCH(x, rw, loc) _mm_prefetch((x), loc == 0 ? _MM_HINT_NTA : \
+                                             (loc == 1 ? _MM_HINT_T2 : \
+                                              (loc == 2 ? _MM_HINT_T1 : \
+                                               (loc == 3 ? _MM_HINT_T0 : -1))))
+#else
+#define NPY_PREFETCH(x, rw,loc)
+#endif
+#endif
+
+/* `NPY_INLINE` kept for backwards compatibility; use `inline` instead */
+#if defined(_MSC_VER) && !defined(__clang__)
+    #define NPY_INLINE __inline
+/* clang included here to handle clang-cl on Windows */
+#elif defined(__GNUC__) || defined(__clang__)
+    #if defined(__STRICT_ANSI__)
+         #define NPY_INLINE __inline__
+    #else
+         #define NPY_INLINE inline
+    #endif
+#else
+    #define NPY_INLINE
+#endif
+
+#ifdef _MSC_VER
+    #ifdef __cplusplus
+        #define NPY_FINLINE __forceinline
+    #else
+        #define NPY_FINLINE static __forceinline
+    #endif
+#elif defined(__GNUC__)
+    #ifdef __cplusplus
+        #define NPY_FINLINE inline __attribute__((always_inline))
+    #else
+        #define NPY_FINLINE static inline __attribute__((always_inline))
+    #endif
+#else
+    #ifdef __cplusplus
+        #define NPY_FINLINE inline
+    #else
+        #define NPY_FINLINE static NPY_INLINE
+    #endif
+#endif
+
+#if defined(_MSC_VER)
+    #define NPY_NOINLINE static __declspec(noinline)
+#elif defined(__GNUC__) || defined(__clang__)
+    #define NPY_NOINLINE static __attribute__((noinline))
+#else
+    #define NPY_NOINLINE static
+#endif
+
+#ifdef __cplusplus
+    #define NPY_TLS thread_local
+#elif defined(HAVE_THREAD_LOCAL)
+    #define NPY_TLS thread_local
+#elif defined(HAVE__THREAD_LOCAL)
+    #define NPY_TLS _Thread_local
+#elif defined(HAVE___THREAD)
+    #define NPY_TLS __thread
+#elif defined(HAVE___DECLSPEC_THREAD_)
+    #define NPY_TLS __declspec(thread)
+#else
+    #define NPY_TLS
+#endif
+
+#ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE
+  #define NPY_RETURNS_BORROWED_REF \
+    __attribute__((cpychecker_returns_borrowed_ref))
+#else
+  #define NPY_RETURNS_BORROWED_REF
+#endif
+
+#ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE
+  #define NPY_STEALS_REF_TO_ARG(n) \
+   __attribute__((cpychecker_steals_reference_to_arg(n)))
+#else
+ #define NPY_STEALS_REF_TO_ARG(n)
+#endif
+
+/* 64 bit file position support, also on win-amd64. Issue gh-2256 */
+#if defined(_MSC_VER) && defined(_WIN64) && (_MSC_VER > 1400) || \
+    defined(__MINGW32__) || defined(__MINGW64__)
+    #include <io.h>
+
+    #define npy_fseek _fseeki64
+    #define npy_ftell _ftelli64
+    #define npy_lseek _lseeki64
+    #define npy_off_t npy_int64
+
+    #if NPY_SIZEOF_INT == 8
+        #define NPY_OFF_T_PYFMT "i"
+    #elif NPY_SIZEOF_LONG == 8
+        #define NPY_OFF_T_PYFMT "l"
+    #elif NPY_SIZEOF_LONGLONG == 8
+        #define NPY_OFF_T_PYFMT "L"
+    #else
+        #error Unsupported size for type off_t
+    #endif
+#else
+#ifdef HAVE_FSEEKO
+    #define npy_fseek fseeko
+#else
+    #define npy_fseek fseek
+#endif
+#ifdef HAVE_FTELLO
+    #define npy_ftell ftello
+#else
+    #define npy_ftell ftell
+#endif
+    #include <sys/types.h>
+    #ifndef _WIN32
+        #include <unistd.h>
+    #endif
+    #define npy_lseek lseek
+    #define npy_off_t off_t
+
+    #if NPY_SIZEOF_OFF_T == NPY_SIZEOF_SHORT
+        #define NPY_OFF_T_PYFMT "h"
+    #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_INT
+        #define NPY_OFF_T_PYFMT "i"
+    #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_LONG
+        #define NPY_OFF_T_PYFMT "l"
+    #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_LONGLONG
+        #define NPY_OFF_T_PYFMT "L"
+    #else
+        #error Unsupported size for type off_t
+    #endif
+#endif
+
+/* enums for detected endianness */
+enum {
+        NPY_CPU_UNKNOWN_ENDIAN,
+        NPY_CPU_LITTLE,
+        NPY_CPU_BIG
+};
+
+/*
+ * This is to typedef npy_intp to the appropriate size for Py_ssize_t.
+ * (Before NumPy 2.0 we used Py_intptr_t and Py_uintptr_t from `pyport.h`.)
+ */
+typedef Py_ssize_t npy_intp;
+typedef size_t npy_uintp;
+
+/*
+ * Define sizes that were not defined in numpyconfig.h.
+ */
+#define NPY_SIZEOF_CHAR 1
+#define NPY_SIZEOF_BYTE 1
+#define NPY_SIZEOF_DATETIME 8
+#define NPY_SIZEOF_TIMEDELTA 8
+#define NPY_SIZEOF_HALF 2
+#define NPY_SIZEOF_CFLOAT NPY_SIZEOF_COMPLEX_FLOAT
+#define NPY_SIZEOF_CDOUBLE NPY_SIZEOF_COMPLEX_DOUBLE
+#define NPY_SIZEOF_CLONGDOUBLE NPY_SIZEOF_COMPLEX_LONGDOUBLE
+
+#ifdef constchar
+#undef constchar
+#endif
+
+#define NPY_SSIZE_T_PYFMT "n"
+#define constchar char
+
+/* NPY_INTP_FMT Note:
+ *      Unlike the other NPY_*_FMT macros, which are used with PyOS_snprintf,
+ *      NPY_INTP_FMT is used with PyErr_Format and PyUnicode_FromFormat. Those
+ *      functions use different formatting codes that are portably specified
+ *      according to the Python documentation. See issue gh-2388.
+ */
+#if NPY_SIZEOF_INTP == NPY_SIZEOF_LONG
+        #define NPY_INTP NPY_LONG
+        #define NPY_UINTP NPY_ULONG
+        #define PyIntpArrType_Type PyLongArrType_Type
+        #define PyUIntpArrType_Type PyULongArrType_Type
+        #define NPY_MAX_INTP NPY_MAX_LONG
+        #define NPY_MIN_INTP NPY_MIN_LONG
+        #define NPY_MAX_UINTP NPY_MAX_ULONG
+        #define NPY_INTP_FMT "ld"
+#elif NPY_SIZEOF_INTP == NPY_SIZEOF_INT
+        #define NPY_INTP NPY_INT
+        #define NPY_UINTP NPY_UINT
+        #define PyIntpArrType_Type PyIntArrType_Type
+        #define PyUIntpArrType_Type PyUIntArrType_Type
+        #define NPY_MAX_INTP NPY_MAX_INT
+        #define NPY_MIN_INTP NPY_MIN_INT
+        #define NPY_MAX_UINTP NPY_MAX_UINT
+        #define NPY_INTP_FMT "d"
+#elif defined(PY_LONG_LONG) && (NPY_SIZEOF_INTP == NPY_SIZEOF_LONGLONG)
+        #define NPY_INTP NPY_LONGLONG
+        #define NPY_UINTP NPY_ULONGLONG
+        #define PyIntpArrType_Type PyLongLongArrType_Type
+        #define PyUIntpArrType_Type PyULongLongArrType_Type
+        #define NPY_MAX_INTP NPY_MAX_LONGLONG
+        #define NPY_MIN_INTP NPY_MIN_LONGLONG
+        #define NPY_MAX_UINTP NPY_MAX_ULONGLONG
+        #define NPY_INTP_FMT "lld"
+#else
+    #error "Failed to correctly define NPY_INTP and NPY_UINTP"
+#endif
+
+
+/*
+ * Some platforms don't define bool, long long, or long double.
+ * Handle that here.
+ */
+#define NPY_BYTE_FMT "hhd"
+#define NPY_UBYTE_FMT "hhu"
+#define NPY_SHORT_FMT "hd"
+#define NPY_USHORT_FMT "hu"
+#define NPY_INT_FMT "d"
+#define NPY_UINT_FMT "u"
+#define NPY_LONG_FMT "ld"
+#define NPY_ULONG_FMT "lu"
+#define NPY_HALF_FMT "g"
+#define NPY_FLOAT_FMT "g"
+#define NPY_DOUBLE_FMT "g"
+
+
+#ifdef PY_LONG_LONG
+typedef PY_LONG_LONG npy_longlong;
+typedef unsigned PY_LONG_LONG npy_ulonglong;
+#  ifdef _MSC_VER
+#    define NPY_LONGLONG_FMT         "I64d"
+#    define NPY_ULONGLONG_FMT        "I64u"
+#  else
+#    define NPY_LONGLONG_FMT         "lld"
+#    define NPY_ULONGLONG_FMT        "llu"
+#  endif
+#  ifdef _MSC_VER
+#    define NPY_LONGLONG_SUFFIX(x)   (x##i64)
+#    define NPY_ULONGLONG_SUFFIX(x)  (x##Ui64)
+#  else
+#    define NPY_LONGLONG_SUFFIX(x)   (x##LL)
+#    define NPY_ULONGLONG_SUFFIX(x)  (x##ULL)
+#  endif
+#else
+typedef long npy_longlong;
+typedef unsigned long npy_ulonglong;
+#  define NPY_LONGLONG_SUFFIX(x)  (x##L)
+#  define NPY_ULONGLONG_SUFFIX(x) (x##UL)
+#endif
+
+
+typedef unsigned char npy_bool;
+#define NPY_FALSE 0
+#define NPY_TRUE 1
+/*
+ * `NPY_SIZEOF_LONGDOUBLE` isn't usually equal to sizeof(long double).
+ * In some certain cases, it may forced to be equal to sizeof(double)
+ * even against the compiler implementation and the same goes for
+ * `complex long double`.
+ *
+ * Therefore, avoid `long double`, use `npy_longdouble` instead,
+ * and when it comes to standard math functions make sure of using
+ * the double version when `NPY_SIZEOF_LONGDOUBLE` == `NPY_SIZEOF_DOUBLE`.
+ * For example:
+ *   npy_longdouble *ptr, x;
+ *   #if NPY_SIZEOF_LONGDOUBLE == NPY_SIZEOF_DOUBLE
+ *       npy_longdouble r = modf(x, ptr);
+ *   #else
+ *       npy_longdouble r = modfl(x, ptr);
+ *   #endif
+ *
+ * See https://github.com/numpy/numpy/issues/20348
+ */
+#if NPY_SIZEOF_LONGDOUBLE == NPY_SIZEOF_DOUBLE
+    #define NPY_LONGDOUBLE_FMT "g"
+    #define longdouble_t double
+    typedef double npy_longdouble;
+#else
+    #define NPY_LONGDOUBLE_FMT "Lg"
+    #define longdouble_t long double
+    typedef long double npy_longdouble;
+#endif
+
+#ifndef Py_USING_UNICODE
+#error Must use Python with unicode enabled.
+#endif
+
+
+typedef signed char npy_byte;
+typedef unsigned char npy_ubyte;
+typedef unsigned short npy_ushort;
+typedef unsigned int npy_uint;
+typedef unsigned long npy_ulong;
+
+/* These are for completeness */
+typedef char npy_char;
+typedef short npy_short;
+typedef int npy_int;
+typedef long npy_long;
+typedef float npy_float;
+typedef double npy_double;
+
+typedef Py_hash_t npy_hash_t;
+#define NPY_SIZEOF_HASH_T NPY_SIZEOF_INTP
+
+#if defined(__cplusplus)
+
+typedef struct
+{
+    double _Val[2];
+} npy_cdouble;
+
+typedef struct
+{
+    float _Val[2];
+} npy_cfloat;
+
+typedef struct
+{
+    long double _Val[2];
+} npy_clongdouble;
+
+#else
+
+#include <complex.h>
+
+
+#if defined(_MSC_VER) && !defined(__INTEL_COMPILER)
+typedef _Dcomplex npy_cdouble;
+typedef _Fcomplex npy_cfloat;
+typedef _Lcomplex npy_clongdouble;
+#else /* !defined(_MSC_VER) || defined(__INTEL_COMPILER) */
+typedef double _Complex npy_cdouble;
+typedef float _Complex npy_cfloat;
+typedef longdouble_t _Complex npy_clongdouble;
+#endif
+
+#endif
+
+/*
+ * numarray-style bit-width typedefs
+ */
+#define NPY_MAX_INT8 127
+#define NPY_MIN_INT8 -128
+#define NPY_MAX_UINT8 255
+#define NPY_MAX_INT16 32767
+#define NPY_MIN_INT16 -32768
+#define NPY_MAX_UINT16 65535
+#define NPY_MAX_INT32 2147483647
+#define NPY_MIN_INT32 (-NPY_MAX_INT32 - 1)
+#define NPY_MAX_UINT32 4294967295U
+#define NPY_MAX_INT64 NPY_LONGLONG_SUFFIX(9223372036854775807)
+#define NPY_MIN_INT64 (-NPY_MAX_INT64 - NPY_LONGLONG_SUFFIX(1))
+#define NPY_MAX_UINT64 NPY_ULONGLONG_SUFFIX(18446744073709551615)
+#define NPY_MAX_INT128 NPY_LONGLONG_SUFFIX(85070591730234615865843651857942052864)
+#define NPY_MIN_INT128 (-NPY_MAX_INT128 - NPY_LONGLONG_SUFFIX(1))
+#define NPY_MAX_UINT128 NPY_ULONGLONG_SUFFIX(170141183460469231731687303715884105728)
+#define NPY_MIN_DATETIME NPY_MIN_INT64
+#define NPY_MAX_DATETIME NPY_MAX_INT64
+#define NPY_MIN_TIMEDELTA NPY_MIN_INT64
+#define NPY_MAX_TIMEDELTA NPY_MAX_INT64
+
+        /* Need to find the number of bits for each type and
+           make definitions accordingly.
+
+           C states that sizeof(char) == 1 by definition
+
+           So, just using the sizeof keyword won't help.
+
+           It also looks like Python itself uses sizeof(char) quite a
+           bit, which by definition should be 1 all the time.
+
+           Idea: Make Use of CHAR_BIT which should tell us how many
+           BITS per CHARACTER
+        */
+
+        /* Include platform definitions -- These are in the C89/90 standard */
+#include <limits.h>
+#define NPY_MAX_BYTE SCHAR_MAX
+#define NPY_MIN_BYTE SCHAR_MIN
+#define NPY_MAX_UBYTE UCHAR_MAX
+#define NPY_MAX_SHORT SHRT_MAX
+#define NPY_MIN_SHORT SHRT_MIN
+#define NPY_MAX_USHORT USHRT_MAX
+#define NPY_MAX_INT   INT_MAX
+#ifndef INT_MIN
+#define INT_MIN (-INT_MAX - 1)
+#endif
+#define NPY_MIN_INT   INT_MIN
+#define NPY_MAX_UINT  UINT_MAX
+#define NPY_MAX_LONG  LONG_MAX
+#define NPY_MIN_LONG  LONG_MIN
+#define NPY_MAX_ULONG  ULONG_MAX
+
+#define NPY_BITSOF_BOOL (sizeof(npy_bool) * CHAR_BIT)
+#define NPY_BITSOF_CHAR CHAR_BIT
+#define NPY_BITSOF_BYTE (NPY_SIZEOF_BYTE * CHAR_BIT)
+#define NPY_BITSOF_SHORT (NPY_SIZEOF_SHORT * CHAR_BIT)
+#define NPY_BITSOF_INT (NPY_SIZEOF_INT * CHAR_BIT)
+#define NPY_BITSOF_LONG (NPY_SIZEOF_LONG * CHAR_BIT)
+#define NPY_BITSOF_LONGLONG (NPY_SIZEOF_LONGLONG * CHAR_BIT)
+#define NPY_BITSOF_INTP (NPY_SIZEOF_INTP * CHAR_BIT)
+#define NPY_BITSOF_HALF (NPY_SIZEOF_HALF * CHAR_BIT)
+#define NPY_BITSOF_FLOAT (NPY_SIZEOF_FLOAT * CHAR_BIT)
+#define NPY_BITSOF_DOUBLE (NPY_SIZEOF_DOUBLE * CHAR_BIT)
+#define NPY_BITSOF_LONGDOUBLE (NPY_SIZEOF_LONGDOUBLE * CHAR_BIT)
+#define NPY_BITSOF_CFLOAT (NPY_SIZEOF_CFLOAT * CHAR_BIT)
+#define NPY_BITSOF_CDOUBLE (NPY_SIZEOF_CDOUBLE * CHAR_BIT)
+#define NPY_BITSOF_CLONGDOUBLE (NPY_SIZEOF_CLONGDOUBLE * CHAR_BIT)
+#define NPY_BITSOF_DATETIME (NPY_SIZEOF_DATETIME * CHAR_BIT)
+#define NPY_BITSOF_TIMEDELTA (NPY_SIZEOF_TIMEDELTA * CHAR_BIT)
+
+#if NPY_BITSOF_LONG == 8
+#define NPY_INT8 NPY_LONG
+#define NPY_UINT8 NPY_ULONG
+        typedef long npy_int8;
+        typedef unsigned long npy_uint8;
+#define PyInt8ScalarObject PyLongScalarObject
+#define PyInt8ArrType_Type PyLongArrType_Type
+#define PyUInt8ScalarObject PyULongScalarObject
+#define PyUInt8ArrType_Type PyULongArrType_Type
+#define NPY_INT8_FMT NPY_LONG_FMT
+#define NPY_UINT8_FMT NPY_ULONG_FMT
+#elif NPY_BITSOF_LONG == 16
+#define NPY_INT16 NPY_LONG
+#define NPY_UINT16 NPY_ULONG
+        typedef long npy_int16;
+        typedef unsigned long npy_uint16;
+#define PyInt16ScalarObject PyLongScalarObject
+#define PyInt16ArrType_Type PyLongArrType_Type
+#define PyUInt16ScalarObject PyULongScalarObject
+#define PyUInt16ArrType_Type PyULongArrType_Type
+#define NPY_INT16_FMT NPY_LONG_FMT
+#define NPY_UINT16_FMT NPY_ULONG_FMT
+#elif NPY_BITSOF_LONG == 32
+#define NPY_INT32 NPY_LONG
+#define NPY_UINT32 NPY_ULONG
+        typedef long npy_int32;
+        typedef unsigned long npy_uint32;
+        typedef unsigned long npy_ucs4;
+#define PyInt32ScalarObject PyLongScalarObject
+#define PyInt32ArrType_Type PyLongArrType_Type
+#define PyUInt32ScalarObject PyULongScalarObject
+#define PyUInt32ArrType_Type PyULongArrType_Type
+#define NPY_INT32_FMT NPY_LONG_FMT
+#define NPY_UINT32_FMT NPY_ULONG_FMT
+#elif NPY_BITSOF_LONG == 64
+#define NPY_INT64 NPY_LONG
+#define NPY_UINT64 NPY_ULONG
+        typedef long npy_int64;
+        typedef unsigned long npy_uint64;
+#define PyInt64ScalarObject PyLongScalarObject
+#define PyInt64ArrType_Type PyLongArrType_Type
+#define PyUInt64ScalarObject PyULongScalarObject
+#define PyUInt64ArrType_Type PyULongArrType_Type
+#define NPY_INT64_FMT NPY_LONG_FMT
+#define NPY_UINT64_FMT NPY_ULONG_FMT
+#define MyPyLong_FromInt64 PyLong_FromLong
+#define MyPyLong_AsInt64 PyLong_AsLong
+#endif
+
+#if NPY_BITSOF_LONGLONG == 8
+#  ifndef NPY_INT8
+#    define NPY_INT8 NPY_LONGLONG
+#    define NPY_UINT8 NPY_ULONGLONG
+        typedef npy_longlong npy_int8;
+        typedef npy_ulonglong npy_uint8;
+#    define PyInt8ScalarObject PyLongLongScalarObject
+#    define PyInt8ArrType_Type PyLongLongArrType_Type
+#    define PyUInt8ScalarObject PyULongLongScalarObject
+#    define PyUInt8ArrType_Type PyULongLongArrType_Type
+#define NPY_INT8_FMT NPY_LONGLONG_FMT
+#define NPY_UINT8_FMT NPY_ULONGLONG_FMT
+#  endif
+#  define NPY_MAX_LONGLONG NPY_MAX_INT8
+#  define NPY_MIN_LONGLONG NPY_MIN_INT8
+#  define NPY_MAX_ULONGLONG NPY_MAX_UINT8
+#elif NPY_BITSOF_LONGLONG == 16
+#  ifndef NPY_INT16
+#    define NPY_INT16 NPY_LONGLONG
+#    define NPY_UINT16 NPY_ULONGLONG
+        typedef npy_longlong npy_int16;
+        typedef npy_ulonglong npy_uint16;
+#    define PyInt16ScalarObject PyLongLongScalarObject
+#    define PyInt16ArrType_Type PyLongLongArrType_Type
+#    define PyUInt16ScalarObject PyULongLongScalarObject
+#    define PyUInt16ArrType_Type PyULongLongArrType_Type
+#define NPY_INT16_FMT NPY_LONGLONG_FMT
+#define NPY_UINT16_FMT NPY_ULONGLONG_FMT
+#  endif
+#  define NPY_MAX_LONGLONG NPY_MAX_INT16
+#  define NPY_MIN_LONGLONG NPY_MIN_INT16
+#  define NPY_MAX_ULONGLONG NPY_MAX_UINT16
+#elif NPY_BITSOF_LONGLONG == 32
+#  ifndef NPY_INT32
+#    define NPY_INT32 NPY_LONGLONG
+#    define NPY_UINT32 NPY_ULONGLONG
+        typedef npy_longlong npy_int32;
+        typedef npy_ulonglong npy_uint32;
+        typedef npy_ulonglong npy_ucs4;
+#    define PyInt32ScalarObject PyLongLongScalarObject
+#    define PyInt32ArrType_Type PyLongLongArrType_Type
+#    define PyUInt32ScalarObject PyULongLongScalarObject
+#    define PyUInt32ArrType_Type PyULongLongArrType_Type
+#define NPY_INT32_FMT NPY_LONGLONG_FMT
+#define NPY_UINT32_FMT NPY_ULONGLONG_FMT
+#  endif
+#  define NPY_MAX_LONGLONG NPY_MAX_INT32
+#  define NPY_MIN_LONGLONG NPY_MIN_INT32
+#  define NPY_MAX_ULONGLONG NPY_MAX_UINT32
+#elif NPY_BITSOF_LONGLONG == 64
+#  ifndef NPY_INT64
+#    define NPY_INT64 NPY_LONGLONG
+#    define NPY_UINT64 NPY_ULONGLONG
+        typedef npy_longlong npy_int64;
+        typedef npy_ulonglong npy_uint64;
+#    define PyInt64ScalarObject PyLongLongScalarObject
+#    define PyInt64ArrType_Type PyLongLongArrType_Type
+#    define PyUInt64ScalarObject PyULongLongScalarObject
+#    define PyUInt64ArrType_Type PyULongLongArrType_Type
+#define NPY_INT64_FMT NPY_LONGLONG_FMT
+#define NPY_UINT64_FMT NPY_ULONGLONG_FMT
+#    define MyPyLong_FromInt64 PyLong_FromLongLong
+#    define MyPyLong_AsInt64 PyLong_AsLongLong
+#  endif
+#  define NPY_MAX_LONGLONG NPY_MAX_INT64
+#  define NPY_MIN_LONGLONG NPY_MIN_INT64
+#  define NPY_MAX_ULONGLONG NPY_MAX_UINT64
+#endif
+
+#if NPY_BITSOF_INT == 8
+#ifndef NPY_INT8
+#define NPY_INT8 NPY_INT
+#define NPY_UINT8 NPY_UINT
+        typedef int npy_int8;
+        typedef unsigned int npy_uint8;
+#    define PyInt8ScalarObject PyIntScalarObject
+#    define PyInt8ArrType_Type PyIntArrType_Type
+#    define PyUInt8ScalarObject PyUIntScalarObject
+#    define PyUInt8ArrType_Type PyUIntArrType_Type
+#define NPY_INT8_FMT NPY_INT_FMT
+#define NPY_UINT8_FMT NPY_UINT_FMT
+#endif
+#elif NPY_BITSOF_INT == 16
+#ifndef NPY_INT16
+#define NPY_INT16 NPY_INT
+#define NPY_UINT16 NPY_UINT
+        typedef int npy_int16;
+        typedef unsigned int npy_uint16;
+#    define PyInt16ScalarObject PyIntScalarObject
+#    define PyInt16ArrType_Type PyIntArrType_Type
+#    define PyUInt16ScalarObject PyIntUScalarObject
+#    define PyUInt16ArrType_Type PyIntUArrType_Type
+#define NPY_INT16_FMT NPY_INT_FMT
+#define NPY_UINT16_FMT NPY_UINT_FMT
+#endif
+#elif NPY_BITSOF_INT == 32
+#ifndef NPY_INT32
+#define NPY_INT32 NPY_INT
+#define NPY_UINT32 NPY_UINT
+        typedef int npy_int32;
+        typedef unsigned int npy_uint32;
+        typedef unsigned int npy_ucs4;
+#    define PyInt32ScalarObject PyIntScalarObject
+#    define PyInt32ArrType_Type PyIntArrType_Type
+#    define PyUInt32ScalarObject PyUIntScalarObject
+#    define PyUInt32ArrType_Type PyUIntArrType_Type
+#define NPY_INT32_FMT NPY_INT_FMT
+#define NPY_UINT32_FMT NPY_UINT_FMT
+#endif
+#elif NPY_BITSOF_INT == 64
+#ifndef NPY_INT64
+#define NPY_INT64 NPY_INT
+#define NPY_UINT64 NPY_UINT
+        typedef int npy_int64;
+        typedef unsigned int npy_uint64;
+#    define PyInt64ScalarObject PyIntScalarObject
+#    define PyInt64ArrType_Type PyIntArrType_Type
+#    define PyUInt64ScalarObject PyUIntScalarObject
+#    define PyUInt64ArrType_Type PyUIntArrType_Type
+#define NPY_INT64_FMT NPY_INT_FMT
+#define NPY_UINT64_FMT NPY_UINT_FMT
+#    define MyPyLong_FromInt64 PyLong_FromLong
+#    define MyPyLong_AsInt64 PyLong_AsLong
+#endif
+#endif
+
+#if NPY_BITSOF_SHORT == 8
+#ifndef NPY_INT8
+#define NPY_INT8 NPY_SHORT
+#define NPY_UINT8 NPY_USHORT
+        typedef short npy_int8;
+        typedef unsigned short npy_uint8;
+#    define PyInt8ScalarObject PyShortScalarObject
+#    define PyInt8ArrType_Type PyShortArrType_Type
+#    define PyUInt8ScalarObject PyUShortScalarObject
+#    define PyUInt8ArrType_Type PyUShortArrType_Type
+#define NPY_INT8_FMT NPY_SHORT_FMT
+#define NPY_UINT8_FMT NPY_USHORT_FMT
+#endif
+#elif NPY_BITSOF_SHORT == 16
+#ifndef NPY_INT16
+#define NPY_INT16 NPY_SHORT
+#define NPY_UINT16 NPY_USHORT
+        typedef short npy_int16;
+        typedef unsigned short npy_uint16;
+#    define PyInt16ScalarObject PyShortScalarObject
+#    define PyInt16ArrType_Type PyShortArrType_Type
+#    define PyUInt16ScalarObject PyUShortScalarObject
+#    define PyUInt16ArrType_Type PyUShortArrType_Type
+#define NPY_INT16_FMT NPY_SHORT_FMT
+#define NPY_UINT16_FMT NPY_USHORT_FMT
+#endif
+#elif NPY_BITSOF_SHORT == 32
+#ifndef NPY_INT32
+#define NPY_INT32 NPY_SHORT
+#define NPY_UINT32 NPY_USHORT
+        typedef short npy_int32;
+        typedef unsigned short npy_uint32;
+        typedef unsigned short npy_ucs4;
+#    define PyInt32ScalarObject PyShortScalarObject
+#    define PyInt32ArrType_Type PyShortArrType_Type
+#    define PyUInt32ScalarObject PyUShortScalarObject
+#    define PyUInt32ArrType_Type PyUShortArrType_Type
+#define NPY_INT32_FMT NPY_SHORT_FMT
+#define NPY_UINT32_FMT NPY_USHORT_FMT
+#endif
+#elif NPY_BITSOF_SHORT == 64
+#ifndef NPY_INT64
+#define NPY_INT64 NPY_SHORT
+#define NPY_UINT64 NPY_USHORT
+        typedef short npy_int64;
+        typedef unsigned short npy_uint64;
+#    define PyInt64ScalarObject PyShortScalarObject
+#    define PyInt64ArrType_Type PyShortArrType_Type
+#    define PyUInt64ScalarObject PyUShortScalarObject
+#    define PyUInt64ArrType_Type PyUShortArrType_Type
+#define NPY_INT64_FMT NPY_SHORT_FMT
+#define NPY_UINT64_FMT NPY_USHORT_FMT
+#    define MyPyLong_FromInt64 PyLong_FromLong
+#    define MyPyLong_AsInt64 PyLong_AsLong
+#endif
+#endif
+
+
+#if NPY_BITSOF_CHAR == 8
+#ifndef NPY_INT8
+#define NPY_INT8 NPY_BYTE
+#define NPY_UINT8 NPY_UBYTE
+        typedef signed char npy_int8;
+        typedef unsigned char npy_uint8;
+#    define PyInt8ScalarObject PyByteScalarObject
+#    define PyInt8ArrType_Type PyByteArrType_Type
+#    define PyUInt8ScalarObject PyUByteScalarObject
+#    define PyUInt8ArrType_Type PyUByteArrType_Type
+#define NPY_INT8_FMT NPY_BYTE_FMT
+#define NPY_UINT8_FMT NPY_UBYTE_FMT
+#endif
+#elif NPY_BITSOF_CHAR == 16
+#ifndef NPY_INT16
+#define NPY_INT16 NPY_BYTE
+#define NPY_UINT16 NPY_UBYTE
+        typedef signed char npy_int16;
+        typedef unsigned char npy_uint16;
+#    define PyInt16ScalarObject PyByteScalarObject
+#    define PyInt16ArrType_Type PyByteArrType_Type
+#    define PyUInt16ScalarObject PyUByteScalarObject
+#    define PyUInt16ArrType_Type PyUByteArrType_Type
+#define NPY_INT16_FMT NPY_BYTE_FMT
+#define NPY_UINT16_FMT NPY_UBYTE_FMT
+#endif
+#elif NPY_BITSOF_CHAR == 32
+#ifndef NPY_INT32
+#define NPY_INT32 NPY_BYTE
+#define NPY_UINT32 NPY_UBYTE
+        typedef signed char npy_int32;
+        typedef unsigned char npy_uint32;
+        typedef unsigned char npy_ucs4;
+#    define PyInt32ScalarObject PyByteScalarObject
+#    define PyInt32ArrType_Type PyByteArrType_Type
+#    define PyUInt32ScalarObject PyUByteScalarObject
+#    define PyUInt32ArrType_Type PyUByteArrType_Type
+#define NPY_INT32_FMT NPY_BYTE_FMT
+#define NPY_UINT32_FMT NPY_UBYTE_FMT
+#endif
+#elif NPY_BITSOF_CHAR == 64
+#ifndef NPY_INT64
+#define NPY_INT64 NPY_BYTE
+#define NPY_UINT64 NPY_UBYTE
+        typedef signed char npy_int64;
+        typedef unsigned char npy_uint64;
+#    define PyInt64ScalarObject PyByteScalarObject
+#    define PyInt64ArrType_Type PyByteArrType_Type
+#    define PyUInt64ScalarObject PyUByteScalarObject
+#    define PyUInt64ArrType_Type PyUByteArrType_Type
+#define NPY_INT64_FMT NPY_BYTE_FMT
+#define NPY_UINT64_FMT NPY_UBYTE_FMT
+#    define MyPyLong_FromInt64 PyLong_FromLong
+#    define MyPyLong_AsInt64 PyLong_AsLong
+#endif
+#elif NPY_BITSOF_CHAR == 128
+#endif
+
+
+
+#if NPY_BITSOF_DOUBLE == 32
+#ifndef NPY_FLOAT32
+#define NPY_FLOAT32 NPY_DOUBLE
+#define NPY_COMPLEX64 NPY_CDOUBLE
+        typedef double npy_float32;
+        typedef npy_cdouble npy_complex64;
+#    define PyFloat32ScalarObject PyDoubleScalarObject
+#    define PyComplex64ScalarObject PyCDoubleScalarObject
+#    define PyFloat32ArrType_Type PyDoubleArrType_Type
+#    define PyComplex64ArrType_Type PyCDoubleArrType_Type
+#define NPY_FLOAT32_FMT NPY_DOUBLE_FMT
+#define NPY_COMPLEX64_FMT NPY_CDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_DOUBLE == 64
+#ifndef NPY_FLOAT64
+#define NPY_FLOAT64 NPY_DOUBLE
+#define NPY_COMPLEX128 NPY_CDOUBLE
+        typedef double npy_float64;
+        typedef npy_cdouble npy_complex128;
+#    define PyFloat64ScalarObject PyDoubleScalarObject
+#    define PyComplex128ScalarObject PyCDoubleScalarObject
+#    define PyFloat64ArrType_Type PyDoubleArrType_Type
+#    define PyComplex128ArrType_Type PyCDoubleArrType_Type
+#define NPY_FLOAT64_FMT NPY_DOUBLE_FMT
+#define NPY_COMPLEX128_FMT NPY_CDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_DOUBLE == 80
+#ifndef NPY_FLOAT80
+#define NPY_FLOAT80 NPY_DOUBLE
+#define NPY_COMPLEX160 NPY_CDOUBLE
+        typedef double npy_float80;
+        typedef npy_cdouble npy_complex160;
+#    define PyFloat80ScalarObject PyDoubleScalarObject
+#    define PyComplex160ScalarObject PyCDoubleScalarObject
+#    define PyFloat80ArrType_Type PyDoubleArrType_Type
+#    define PyComplex160ArrType_Type PyCDoubleArrType_Type
+#define NPY_FLOAT80_FMT NPY_DOUBLE_FMT
+#define NPY_COMPLEX160_FMT NPY_CDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_DOUBLE == 96
+#ifndef NPY_FLOAT96
+#define NPY_FLOAT96 NPY_DOUBLE
+#define NPY_COMPLEX192 NPY_CDOUBLE
+        typedef double npy_float96;
+        typedef npy_cdouble npy_complex192;
+#    define PyFloat96ScalarObject PyDoubleScalarObject
+#    define PyComplex192ScalarObject PyCDoubleScalarObject
+#    define PyFloat96ArrType_Type PyDoubleArrType_Type
+#    define PyComplex192ArrType_Type PyCDoubleArrType_Type
+#define NPY_FLOAT96_FMT NPY_DOUBLE_FMT
+#define NPY_COMPLEX192_FMT NPY_CDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_DOUBLE == 128
+#ifndef NPY_FLOAT128
+#define NPY_FLOAT128 NPY_DOUBLE
+#define NPY_COMPLEX256 NPY_CDOUBLE
+        typedef double npy_float128;
+        typedef npy_cdouble npy_complex256;
+#    define PyFloat128ScalarObject PyDoubleScalarObject
+#    define PyComplex256ScalarObject PyCDoubleScalarObject
+#    define PyFloat128ArrType_Type PyDoubleArrType_Type
+#    define PyComplex256ArrType_Type PyCDoubleArrType_Type
+#define NPY_FLOAT128_FMT NPY_DOUBLE_FMT
+#define NPY_COMPLEX256_FMT NPY_CDOUBLE_FMT
+#endif
+#endif
+
+
+
+#if NPY_BITSOF_FLOAT == 32
+#ifndef NPY_FLOAT32
+#define NPY_FLOAT32 NPY_FLOAT
+#define NPY_COMPLEX64 NPY_CFLOAT
+        typedef float npy_float32;
+        typedef npy_cfloat npy_complex64;
+#    define PyFloat32ScalarObject PyFloatScalarObject
+#    define PyComplex64ScalarObject PyCFloatScalarObject
+#    define PyFloat32ArrType_Type PyFloatArrType_Type
+#    define PyComplex64ArrType_Type PyCFloatArrType_Type
+#define NPY_FLOAT32_FMT NPY_FLOAT_FMT
+#define NPY_COMPLEX64_FMT NPY_CFLOAT_FMT
+#endif
+#elif NPY_BITSOF_FLOAT == 64
+#ifndef NPY_FLOAT64
+#define NPY_FLOAT64 NPY_FLOAT
+#define NPY_COMPLEX128 NPY_CFLOAT
+        typedef float npy_float64;
+        typedef npy_cfloat npy_complex128;
+#    define PyFloat64ScalarObject PyFloatScalarObject
+#    define PyComplex128ScalarObject PyCFloatScalarObject
+#    define PyFloat64ArrType_Type PyFloatArrType_Type
+#    define PyComplex128ArrType_Type PyCFloatArrType_Type
+#define NPY_FLOAT64_FMT NPY_FLOAT_FMT
+#define NPY_COMPLEX128_FMT NPY_CFLOAT_FMT
+#endif
+#elif NPY_BITSOF_FLOAT == 80
+#ifndef NPY_FLOAT80
+#define NPY_FLOAT80 NPY_FLOAT
+#define NPY_COMPLEX160 NPY_CFLOAT
+        typedef float npy_float80;
+        typedef npy_cfloat npy_complex160;
+#    define PyFloat80ScalarObject PyFloatScalarObject
+#    define PyComplex160ScalarObject PyCFloatScalarObject
+#    define PyFloat80ArrType_Type PyFloatArrType_Type
+#    define PyComplex160ArrType_Type PyCFloatArrType_Type
+#define NPY_FLOAT80_FMT NPY_FLOAT_FMT
+#define NPY_COMPLEX160_FMT NPY_CFLOAT_FMT
+#endif
+#elif NPY_BITSOF_FLOAT == 96
+#ifndef NPY_FLOAT96
+#define NPY_FLOAT96 NPY_FLOAT
+#define NPY_COMPLEX192 NPY_CFLOAT
+        typedef float npy_float96;
+        typedef npy_cfloat npy_complex192;
+#    define PyFloat96ScalarObject PyFloatScalarObject
+#    define PyComplex192ScalarObject PyCFloatScalarObject
+#    define PyFloat96ArrType_Type PyFloatArrType_Type
+#    define PyComplex192ArrType_Type PyCFloatArrType_Type
+#define NPY_FLOAT96_FMT NPY_FLOAT_FMT
+#define NPY_COMPLEX192_FMT NPY_CFLOAT_FMT
+#endif
+#elif NPY_BITSOF_FLOAT == 128
+#ifndef NPY_FLOAT128
+#define NPY_FLOAT128 NPY_FLOAT
+#define NPY_COMPLEX256 NPY_CFLOAT
+        typedef float npy_float128;
+        typedef npy_cfloat npy_complex256;
+#    define PyFloat128ScalarObject PyFloatScalarObject
+#    define PyComplex256ScalarObject PyCFloatScalarObject
+#    define PyFloat128ArrType_Type PyFloatArrType_Type
+#    define PyComplex256ArrType_Type PyCFloatArrType_Type
+#define NPY_FLOAT128_FMT NPY_FLOAT_FMT
+#define NPY_COMPLEX256_FMT NPY_CFLOAT_FMT
+#endif
+#endif
+
+/* half/float16 isn't a floating-point type in C */
+#define NPY_FLOAT16 NPY_HALF
+typedef npy_uint16 npy_half;
+typedef npy_half npy_float16;
+
+#if NPY_BITSOF_LONGDOUBLE == 32
+#ifndef NPY_FLOAT32
+#define NPY_FLOAT32 NPY_LONGDOUBLE
+#define NPY_COMPLEX64 NPY_CLONGDOUBLE
+        typedef npy_longdouble npy_float32;
+        typedef npy_clongdouble npy_complex64;
+#    define PyFloat32ScalarObject PyLongDoubleScalarObject
+#    define PyComplex64ScalarObject PyCLongDoubleScalarObject
+#    define PyFloat32ArrType_Type PyLongDoubleArrType_Type
+#    define PyComplex64ArrType_Type PyCLongDoubleArrType_Type
+#define NPY_FLOAT32_FMT NPY_LONGDOUBLE_FMT
+#define NPY_COMPLEX64_FMT NPY_CLONGDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_LONGDOUBLE == 64
+#ifndef NPY_FLOAT64
+#define NPY_FLOAT64 NPY_LONGDOUBLE
+#define NPY_COMPLEX128 NPY_CLONGDOUBLE
+        typedef npy_longdouble npy_float64;
+        typedef npy_clongdouble npy_complex128;
+#    define PyFloat64ScalarObject PyLongDoubleScalarObject
+#    define PyComplex128ScalarObject PyCLongDoubleScalarObject
+#    define PyFloat64ArrType_Type PyLongDoubleArrType_Type
+#    define PyComplex128ArrType_Type PyCLongDoubleArrType_Type
+#define NPY_FLOAT64_FMT NPY_LONGDOUBLE_FMT
+#define NPY_COMPLEX128_FMT NPY_CLONGDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_LONGDOUBLE == 80
+#ifndef NPY_FLOAT80
+#define NPY_FLOAT80 NPY_LONGDOUBLE
+#define NPY_COMPLEX160 NPY_CLONGDOUBLE
+        typedef npy_longdouble npy_float80;
+        typedef npy_clongdouble npy_complex160;
+#    define PyFloat80ScalarObject PyLongDoubleScalarObject
+#    define PyComplex160ScalarObject PyCLongDoubleScalarObject
+#    define PyFloat80ArrType_Type PyLongDoubleArrType_Type
+#    define PyComplex160ArrType_Type PyCLongDoubleArrType_Type
+#define NPY_FLOAT80_FMT NPY_LONGDOUBLE_FMT
+#define NPY_COMPLEX160_FMT NPY_CLONGDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_LONGDOUBLE == 96
+#ifndef NPY_FLOAT96
+#define NPY_FLOAT96 NPY_LONGDOUBLE
+#define NPY_COMPLEX192 NPY_CLONGDOUBLE
+        typedef npy_longdouble npy_float96;
+        typedef npy_clongdouble npy_complex192;
+#    define PyFloat96ScalarObject PyLongDoubleScalarObject
+#    define PyComplex192ScalarObject PyCLongDoubleScalarObject
+#    define PyFloat96ArrType_Type PyLongDoubleArrType_Type
+#    define PyComplex192ArrType_Type PyCLongDoubleArrType_Type
+#define NPY_FLOAT96_FMT NPY_LONGDOUBLE_FMT
+#define NPY_COMPLEX192_FMT NPY_CLONGDOUBLE_FMT
+#endif
+#elif NPY_BITSOF_LONGDOUBLE == 128
+#ifndef NPY_FLOAT128
+#define NPY_FLOAT128 NPY_LONGDOUBLE
+#define NPY_COMPLEX256 NPY_CLONGDOUBLE
+        typedef npy_longdouble npy_float128;
+        typedef npy_clongdouble npy_complex256;
+#    define PyFloat128ScalarObject PyLongDoubleScalarObject
+#    define PyComplex256ScalarObject PyCLongDoubleScalarObject
+#    define PyFloat128ArrType_Type PyLongDoubleArrType_Type
+#    define PyComplex256ArrType_Type PyCLongDoubleArrType_Type
+#define NPY_FLOAT128_FMT NPY_LONGDOUBLE_FMT
+#define NPY_COMPLEX256_FMT NPY_CLONGDOUBLE_FMT
+#endif
+#endif
+
+/* datetime typedefs */
+typedef npy_int64 npy_timedelta;
+typedef npy_int64 npy_datetime;
+#define NPY_DATETIME_FMT NPY_INT64_FMT
+#define NPY_TIMEDELTA_FMT NPY_INT64_FMT
+
+/* End of typedefs for numarray style bit-width names */
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_COMMON_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_cpu.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_cpu.h
new file mode 100644
index 0000000000000000000000000000000000000000..8fe62bde9b3dfa43b4408ff7241aed33ecc39367
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_cpu.h
@@ -0,0 +1,126 @@
+/*
+ * This set (target) cpu specific macros:
+ *      - Possible values:
+ *              NPY_CPU_X86
+ *              NPY_CPU_AMD64
+ *              NPY_CPU_PPC
+ *              NPY_CPU_PPC64
+ *              NPY_CPU_PPC64LE
+ *              NPY_CPU_SPARC
+ *              NPY_CPU_S390
+ *              NPY_CPU_IA64
+ *              NPY_CPU_HPPA
+ *              NPY_CPU_ALPHA
+ *              NPY_CPU_ARMEL
+ *              NPY_CPU_ARMEB
+ *              NPY_CPU_SH_LE
+ *              NPY_CPU_SH_BE
+ *              NPY_CPU_ARCEL
+ *              NPY_CPU_ARCEB
+ *              NPY_CPU_RISCV64
+ *              NPY_CPU_RISCV32
+ *              NPY_CPU_LOONGARCH
+ *              NPY_CPU_SW_64
+ *              NPY_CPU_WASM
+ */
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_CPU_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_CPU_H_
+
+#include "numpyconfig.h"
+
+#if defined( __i386__ ) || defined(i386) || defined(_M_IX86)
+    /*
+     * __i386__ is defined by gcc and Intel compiler on Linux,
+     * _M_IX86 by VS compiler,
+     * i386 by Sun compilers on opensolaris at least
+     */
+    #define NPY_CPU_X86
+#elif defined(__x86_64__) || defined(__amd64__) || defined(__x86_64) || defined(_M_AMD64)
+    /*
+     * both __x86_64__ and __amd64__ are defined by gcc
+     * __x86_64 defined by sun compiler on opensolaris at least
+     * _M_AMD64 defined by MS compiler
+     */
+    #define NPY_CPU_AMD64
+#elif defined(__powerpc64__) && defined(__LITTLE_ENDIAN__)
+    #define NPY_CPU_PPC64LE
+#elif defined(__powerpc64__) && defined(__BIG_ENDIAN__)
+    #define NPY_CPU_PPC64
+#elif defined(__ppc__) || defined(__powerpc__) || defined(_ARCH_PPC)
+    /*
+     * __ppc__ is defined by gcc, I remember having seen __powerpc__ once,
+     * but can't find it ATM
+     * _ARCH_PPC is used by at least gcc on AIX
+     * As __powerpc__ and _ARCH_PPC are also defined by PPC64 check
+     * for those specifically first before defaulting to ppc
+     */
+    #define NPY_CPU_PPC
+#elif defined(__sparc__) || defined(__sparc)
+    /* __sparc__ is defined by gcc and Forte (e.g. Sun) compilers */
+    #define NPY_CPU_SPARC
+#elif defined(__s390__)
+    #define NPY_CPU_S390
+#elif defined(__ia64)
+    #define NPY_CPU_IA64
+#elif defined(__hppa)
+    #define NPY_CPU_HPPA
+#elif defined(__alpha__)
+    #define NPY_CPU_ALPHA
+#elif defined(__arm__) || defined(__aarch64__) || defined(_M_ARM64)
+    /* _M_ARM64 is defined in MSVC for ARM64 compilation on Windows */
+    #if defined(__ARMEB__) || defined(__AARCH64EB__)
+        #if defined(__ARM_32BIT_STATE)
+            #define NPY_CPU_ARMEB_AARCH32
+        #elif defined(__ARM_64BIT_STATE)
+            #define NPY_CPU_ARMEB_AARCH64
+        #else
+            #define NPY_CPU_ARMEB
+        #endif
+    #elif defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64)
+        #if defined(__ARM_32BIT_STATE)
+            #define NPY_CPU_ARMEL_AARCH32
+        #elif defined(__ARM_64BIT_STATE) || defined(_M_ARM64) || defined(__AARCH64EL__)
+            #define NPY_CPU_ARMEL_AARCH64
+        #else
+            #define NPY_CPU_ARMEL
+        #endif
+    #else
+        # error Unknown ARM CPU, please report this to numpy maintainers with \
+	information about your platform (OS, CPU and compiler)
+    #endif
+#elif defined(__sh__) && defined(__LITTLE_ENDIAN__)
+    #define NPY_CPU_SH_LE
+#elif defined(__sh__) && defined(__BIG_ENDIAN__)
+    #define NPY_CPU_SH_BE
+#elif defined(__MIPSEL__)
+    #define NPY_CPU_MIPSEL
+#elif defined(__MIPSEB__)
+    #define NPY_CPU_MIPSEB
+#elif defined(__or1k__)
+    #define NPY_CPU_OR1K
+#elif defined(__mc68000__)
+    #define NPY_CPU_M68K
+#elif defined(__arc__) && defined(__LITTLE_ENDIAN__)
+    #define NPY_CPU_ARCEL
+#elif defined(__arc__) && defined(__BIG_ENDIAN__)
+    #define NPY_CPU_ARCEB
+#elif defined(__riscv)
+    #if __riscv_xlen == 64
+	#define NPY_CPU_RISCV64
+    #elif __riscv_xlen == 32
+	#define NPY_CPU_RISCV32
+    #endif
+#elif defined(__loongarch_lp64)
+    #define NPY_CPU_LOONGARCH64
+#elif defined(__sw_64__)
+    #define NPY_CPU_SW_64
+#elif defined(__EMSCRIPTEN__) || defined(__wasm__)
+    /* __EMSCRIPTEN__ is defined by emscripten: an LLVM-to-Web compiler */
+    /* __wasm__ is defined by clang when targeting wasm */
+    #define NPY_CPU_WASM
+#else
+    #error Unknown CPU, please report this to numpy maintainers with \
+    information about your platform (OS, CPU and compiler)
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_CPU_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_endian.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_endian.h
new file mode 100644
index 0000000000000000000000000000000000000000..6fdfa6473a899ee48e609e67a8932992c146a035
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_endian.h
@@ -0,0 +1,79 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_
+
+/*
+ * NPY_BYTE_ORDER is set to the same value as BYTE_ORDER set by glibc in
+ * endian.h
+ */
+
+#if defined(NPY_HAVE_ENDIAN_H) || defined(NPY_HAVE_SYS_ENDIAN_H)
+    /* Use endian.h if available */
+
+    #if defined(NPY_HAVE_ENDIAN_H)
+    #include <endian.h>
+    #elif defined(NPY_HAVE_SYS_ENDIAN_H)
+    #include <sys/endian.h>
+    #endif
+
+    #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN)
+        #define NPY_BYTE_ORDER    BYTE_ORDER
+        #define NPY_LITTLE_ENDIAN LITTLE_ENDIAN
+        #define NPY_BIG_ENDIAN    BIG_ENDIAN
+    #elif defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && defined(_LITTLE_ENDIAN)
+        #define NPY_BYTE_ORDER    _BYTE_ORDER
+        #define NPY_LITTLE_ENDIAN _LITTLE_ENDIAN
+        #define NPY_BIG_ENDIAN    _BIG_ENDIAN
+    #elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN)
+        #define NPY_BYTE_ORDER    __BYTE_ORDER
+        #define NPY_LITTLE_ENDIAN __LITTLE_ENDIAN
+        #define NPY_BIG_ENDIAN    __BIG_ENDIAN
+    #endif
+#endif
+
+#ifndef NPY_BYTE_ORDER
+    /* Set endianness info using target CPU */
+    #include "npy_cpu.h"
+
+    #define NPY_LITTLE_ENDIAN 1234
+    #define NPY_BIG_ENDIAN 4321
+
+    #if defined(NPY_CPU_X86)                  \
+            || defined(NPY_CPU_AMD64)         \
+            || defined(NPY_CPU_IA64)          \
+            || defined(NPY_CPU_ALPHA)         \
+            || defined(NPY_CPU_ARMEL)         \
+            || defined(NPY_CPU_ARMEL_AARCH32) \
+            || defined(NPY_CPU_ARMEL_AARCH64) \
+            || defined(NPY_CPU_SH_LE)         \
+            || defined(NPY_CPU_MIPSEL)        \
+            || defined(NPY_CPU_PPC64LE)       \
+            || defined(NPY_CPU_ARCEL)         \
+            || defined(NPY_CPU_RISCV64)       \
+            || defined(NPY_CPU_RISCV32)       \
+            || defined(NPY_CPU_LOONGARCH)     \
+            || defined(NPY_CPU_SW_64)     \
+            || defined(NPY_CPU_WASM)
+        #define NPY_BYTE_ORDER NPY_LITTLE_ENDIAN
+
+    #elif defined(NPY_CPU_PPC)                \
+            || defined(NPY_CPU_SPARC)         \
+            || defined(NPY_CPU_S390)          \
+            || defined(NPY_CPU_HPPA)          \
+            || defined(NPY_CPU_PPC64)         \
+            || defined(NPY_CPU_ARMEB)         \
+            || defined(NPY_CPU_ARMEB_AARCH32) \
+            || defined(NPY_CPU_ARMEB_AARCH64) \
+            || defined(NPY_CPU_SH_BE)         \
+            || defined(NPY_CPU_MIPSEB)        \
+            || defined(NPY_CPU_OR1K)          \
+            || defined(NPY_CPU_M68K)          \
+            || defined(NPY_CPU_ARCEB)
+        #define NPY_BYTE_ORDER NPY_BIG_ENDIAN
+
+    #else
+        #error Unknown CPU: can not set endianness
+    #endif
+
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_math.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_math.h
new file mode 100644
index 0000000000000000000000000000000000000000..a69ffd00538168c33c83abe9ddc83536f156f591
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_math.h
@@ -0,0 +1,602 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_MATH_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_MATH_H_
+
+#include <numpy/npy_common.h>
+
+#include <math.h>
+
+/* By adding static inline specifiers to npy_math function definitions when
+   appropriate, compiler is given the opportunity to optimize */
+#if NPY_INLINE_MATH
+#define NPY_INPLACE static inline
+#else
+#define NPY_INPLACE
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define PyArray_MAX(a,b) (((a)>(b))?(a):(b))
+#define PyArray_MIN(a,b) (((a)<(b))?(a):(b))
+
+/*
+ * NAN and INFINITY like macros (same behavior as glibc for NAN, same as C99
+ * for INFINITY)
+ *
+ * XXX: I should test whether INFINITY and NAN are available on the platform
+ */
+static inline float __npy_inff(void)
+{
+    const union { npy_uint32 __i; float __f;} __bint = {0x7f800000UL};
+    return __bint.__f;
+}
+
+static inline float __npy_nanf(void)
+{
+    const union { npy_uint32 __i; float __f;} __bint = {0x7fc00000UL};
+    return __bint.__f;
+}
+
+static inline float __npy_pzerof(void)
+{
+    const union { npy_uint32 __i; float __f;} __bint = {0x00000000UL};
+    return __bint.__f;
+}
+
+static inline float __npy_nzerof(void)
+{
+    const union { npy_uint32 __i; float __f;} __bint = {0x80000000UL};
+    return __bint.__f;
+}
+
+#define NPY_INFINITYF __npy_inff()
+#define NPY_NANF __npy_nanf()
+#define NPY_PZEROF __npy_pzerof()
+#define NPY_NZEROF __npy_nzerof()
+
+#define NPY_INFINITY ((npy_double)NPY_INFINITYF)
+#define NPY_NAN ((npy_double)NPY_NANF)
+#define NPY_PZERO ((npy_double)NPY_PZEROF)
+#define NPY_NZERO ((npy_double)NPY_NZEROF)
+
+#define NPY_INFINITYL ((npy_longdouble)NPY_INFINITYF)
+#define NPY_NANL ((npy_longdouble)NPY_NANF)
+#define NPY_PZEROL ((npy_longdouble)NPY_PZEROF)
+#define NPY_NZEROL ((npy_longdouble)NPY_NZEROF)
+
+/*
+ * Useful constants
+ */
+#define NPY_E         2.718281828459045235360287471352662498  /* e */
+#define NPY_LOG2E     1.442695040888963407359924681001892137  /* log_2 e */
+#define NPY_LOG10E    0.434294481903251827651128918916605082  /* log_10 e */
+#define NPY_LOGE2     0.693147180559945309417232121458176568  /* log_e 2 */
+#define NPY_LOGE10    2.302585092994045684017991454684364208  /* log_e 10 */
+#define NPY_PI        3.141592653589793238462643383279502884  /* pi */
+#define NPY_PI_2      1.570796326794896619231321691639751442  /* pi/2 */
+#define NPY_PI_4      0.785398163397448309615660845819875721  /* pi/4 */
+#define NPY_1_PI      0.318309886183790671537767526745028724  /* 1/pi */
+#define NPY_2_PI      0.636619772367581343075535053490057448  /* 2/pi */
+#define NPY_EULER     0.577215664901532860606512090082402431  /* Euler constant */
+#define NPY_SQRT2     1.414213562373095048801688724209698079  /* sqrt(2) */
+#define NPY_SQRT1_2   0.707106781186547524400844362104849039  /* 1/sqrt(2) */
+
+#define NPY_Ef        2.718281828459045235360287471352662498F /* e */
+#define NPY_LOG2Ef    1.442695040888963407359924681001892137F /* log_2 e */
+#define NPY_LOG10Ef   0.434294481903251827651128918916605082F /* log_10 e */
+#define NPY_LOGE2f    0.693147180559945309417232121458176568F /* log_e 2 */
+#define NPY_LOGE10f   2.302585092994045684017991454684364208F /* log_e 10 */
+#define NPY_PIf       3.141592653589793238462643383279502884F /* pi */
+#define NPY_PI_2f     1.570796326794896619231321691639751442F /* pi/2 */
+#define NPY_PI_4f     0.785398163397448309615660845819875721F /* pi/4 */
+#define NPY_1_PIf     0.318309886183790671537767526745028724F /* 1/pi */
+#define NPY_2_PIf     0.636619772367581343075535053490057448F /* 2/pi */
+#define NPY_EULERf    0.577215664901532860606512090082402431F /* Euler constant */
+#define NPY_SQRT2f    1.414213562373095048801688724209698079F /* sqrt(2) */
+#define NPY_SQRT1_2f  0.707106781186547524400844362104849039F /* 1/sqrt(2) */
+
+#define NPY_El        2.718281828459045235360287471352662498L /* e */
+#define NPY_LOG2El    1.442695040888963407359924681001892137L /* log_2 e */
+#define NPY_LOG10El   0.434294481903251827651128918916605082L /* log_10 e */
+#define NPY_LOGE2l    0.693147180559945309417232121458176568L /* log_e 2 */
+#define NPY_LOGE10l   2.302585092994045684017991454684364208L /* log_e 10 */
+#define NPY_PIl       3.141592653589793238462643383279502884L /* pi */
+#define NPY_PI_2l     1.570796326794896619231321691639751442L /* pi/2 */
+#define NPY_PI_4l     0.785398163397448309615660845819875721L /* pi/4 */
+#define NPY_1_PIl     0.318309886183790671537767526745028724L /* 1/pi */
+#define NPY_2_PIl     0.636619772367581343075535053490057448L /* 2/pi */
+#define NPY_EULERl    0.577215664901532860606512090082402431L /* Euler constant */
+#define NPY_SQRT2l    1.414213562373095048801688724209698079L /* sqrt(2) */
+#define NPY_SQRT1_2l  0.707106781186547524400844362104849039L /* 1/sqrt(2) */
+
+/*
+ * Integer functions.
+ */
+NPY_INPLACE npy_uint npy_gcdu(npy_uint a, npy_uint b);
+NPY_INPLACE npy_uint npy_lcmu(npy_uint a, npy_uint b);
+NPY_INPLACE npy_ulong npy_gcdul(npy_ulong a, npy_ulong b);
+NPY_INPLACE npy_ulong npy_lcmul(npy_ulong a, npy_ulong b);
+NPY_INPLACE npy_ulonglong npy_gcdull(npy_ulonglong a, npy_ulonglong b);
+NPY_INPLACE npy_ulonglong npy_lcmull(npy_ulonglong a, npy_ulonglong b);
+
+NPY_INPLACE npy_int npy_gcd(npy_int a, npy_int b);
+NPY_INPLACE npy_int npy_lcm(npy_int a, npy_int b);
+NPY_INPLACE npy_long npy_gcdl(npy_long a, npy_long b);
+NPY_INPLACE npy_long npy_lcml(npy_long a, npy_long b);
+NPY_INPLACE npy_longlong npy_gcdll(npy_longlong a, npy_longlong b);
+NPY_INPLACE npy_longlong npy_lcmll(npy_longlong a, npy_longlong b);
+
+NPY_INPLACE npy_ubyte npy_rshiftuhh(npy_ubyte a, npy_ubyte b);
+NPY_INPLACE npy_ubyte npy_lshiftuhh(npy_ubyte a, npy_ubyte b);
+NPY_INPLACE npy_ushort npy_rshiftuh(npy_ushort a, npy_ushort b);
+NPY_INPLACE npy_ushort npy_lshiftuh(npy_ushort a, npy_ushort b);
+NPY_INPLACE npy_uint npy_rshiftu(npy_uint a, npy_uint b);
+NPY_INPLACE npy_uint npy_lshiftu(npy_uint a, npy_uint b);
+NPY_INPLACE npy_ulong npy_rshiftul(npy_ulong a, npy_ulong b);
+NPY_INPLACE npy_ulong npy_lshiftul(npy_ulong a, npy_ulong b);
+NPY_INPLACE npy_ulonglong npy_rshiftull(npy_ulonglong a, npy_ulonglong b);
+NPY_INPLACE npy_ulonglong npy_lshiftull(npy_ulonglong a, npy_ulonglong b);
+
+NPY_INPLACE npy_byte npy_rshifthh(npy_byte a, npy_byte b);
+NPY_INPLACE npy_byte npy_lshifthh(npy_byte a, npy_byte b);
+NPY_INPLACE npy_short npy_rshifth(npy_short a, npy_short b);
+NPY_INPLACE npy_short npy_lshifth(npy_short a, npy_short b);
+NPY_INPLACE npy_int npy_rshift(npy_int a, npy_int b);
+NPY_INPLACE npy_int npy_lshift(npy_int a, npy_int b);
+NPY_INPLACE npy_long npy_rshiftl(npy_long a, npy_long b);
+NPY_INPLACE npy_long npy_lshiftl(npy_long a, npy_long b);
+NPY_INPLACE npy_longlong npy_rshiftll(npy_longlong a, npy_longlong b);
+NPY_INPLACE npy_longlong npy_lshiftll(npy_longlong a, npy_longlong b);
+
+NPY_INPLACE uint8_t npy_popcountuhh(npy_ubyte a);
+NPY_INPLACE uint8_t npy_popcountuh(npy_ushort a);
+NPY_INPLACE uint8_t npy_popcountu(npy_uint a);
+NPY_INPLACE uint8_t npy_popcountul(npy_ulong a);
+NPY_INPLACE uint8_t npy_popcountull(npy_ulonglong a);
+NPY_INPLACE uint8_t npy_popcounthh(npy_byte a);
+NPY_INPLACE uint8_t npy_popcounth(npy_short a);
+NPY_INPLACE uint8_t npy_popcount(npy_int a);
+NPY_INPLACE uint8_t npy_popcountl(npy_long a);
+NPY_INPLACE uint8_t npy_popcountll(npy_longlong a);
+
+/*
+ * C99 double math funcs that need fixups or are blocklist-able
+ */
+NPY_INPLACE double npy_sin(double x);
+NPY_INPLACE double npy_cos(double x);
+NPY_INPLACE double npy_tan(double x);
+NPY_INPLACE double npy_hypot(double x, double y);
+NPY_INPLACE double npy_log2(double x);
+NPY_INPLACE double npy_atan2(double x, double y);
+
+/* Mandatory C99 double math funcs, no blocklisting or fixups */
+/* defined for legacy reasons, should be deprecated at some point */
+#define npy_sinh sinh
+#define npy_cosh cosh
+#define npy_tanh tanh
+#define npy_asin asin
+#define npy_acos acos
+#define npy_atan atan
+#define npy_log log
+#define npy_log10 log10
+#define npy_cbrt cbrt
+#define npy_fabs fabs
+#define npy_ceil ceil
+#define npy_fmod fmod
+#define npy_floor floor
+#define npy_expm1 expm1
+#define npy_log1p log1p
+#define npy_acosh acosh
+#define npy_asinh asinh
+#define npy_atanh atanh
+#define npy_rint rint
+#define npy_trunc trunc
+#define npy_exp2 exp2
+#define npy_frexp frexp
+#define npy_ldexp ldexp
+#define npy_copysign copysign
+#define npy_exp exp
+#define npy_sqrt sqrt
+#define npy_pow pow
+#define npy_modf modf
+#define npy_nextafter nextafter
+
+double npy_spacing(double x);
+
+/*
+ * IEEE 754 fpu handling
+ */
+
+/* use builtins to avoid function calls in tight loops
+ * only available if npy_config.h is available (= numpys own build) */
+#ifdef HAVE___BUILTIN_ISNAN
+    #define npy_isnan(x) __builtin_isnan(x)
+#else
+    #define npy_isnan(x) isnan(x)
+#endif
+
+
+/* only available if npy_config.h is available (= numpys own build) */
+#ifdef HAVE___BUILTIN_ISFINITE
+    #define npy_isfinite(x) __builtin_isfinite(x)
+#else
+    #define npy_isfinite(x) isfinite((x))
+#endif
+
+/* only available if npy_config.h is available (= numpys own build) */
+#ifdef HAVE___BUILTIN_ISINF
+    #define npy_isinf(x) __builtin_isinf(x)
+#else
+    #define npy_isinf(x) isinf((x))
+#endif
+
+#define npy_signbit(x) signbit((x))
+
+/*
+ * float C99 math funcs that need fixups or are blocklist-able
+ */
+NPY_INPLACE float npy_sinf(float x);
+NPY_INPLACE float npy_cosf(float x);
+NPY_INPLACE float npy_tanf(float x);
+NPY_INPLACE float npy_expf(float x);
+NPY_INPLACE float npy_sqrtf(float x);
+NPY_INPLACE float npy_hypotf(float x, float y);
+NPY_INPLACE float npy_log2f(float x);
+NPY_INPLACE float npy_atan2f(float x, float y);
+NPY_INPLACE float npy_powf(float x, float y);
+NPY_INPLACE float npy_modff(float x, float* y);
+
+/* Mandatory C99 float math funcs, no blocklisting or fixups */
+/* defined for legacy reasons, should be deprecated at some point */
+
+#define npy_sinhf sinhf
+#define npy_coshf coshf
+#define npy_tanhf tanhf
+#define npy_asinf asinf
+#define npy_acosf acosf
+#define npy_atanf atanf
+#define npy_logf logf
+#define npy_log10f log10f
+#define npy_cbrtf cbrtf
+#define npy_fabsf fabsf
+#define npy_ceilf ceilf
+#define npy_fmodf fmodf
+#define npy_floorf floorf
+#define npy_expm1f expm1f
+#define npy_log1pf log1pf
+#define npy_asinhf asinhf
+#define npy_acoshf acoshf
+#define npy_atanhf atanhf
+#define npy_rintf rintf
+#define npy_truncf truncf
+#define npy_exp2f exp2f
+#define npy_frexpf frexpf
+#define npy_ldexpf ldexpf
+#define npy_copysignf copysignf
+#define npy_nextafterf nextafterf
+
+float npy_spacingf(float x);
+
+/*
+ * long double C99 double math funcs that need fixups or are blocklist-able
+ */
+NPY_INPLACE npy_longdouble npy_sinl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_cosl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_tanl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_expl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_sqrtl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_hypotl(npy_longdouble x, npy_longdouble y);
+NPY_INPLACE npy_longdouble npy_log2l(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_atan2l(npy_longdouble x, npy_longdouble y);
+NPY_INPLACE npy_longdouble npy_powl(npy_longdouble x, npy_longdouble y);
+NPY_INPLACE npy_longdouble npy_modfl(npy_longdouble x, npy_longdouble* y);
+
+/* Mandatory C99 double math funcs, no blocklisting or fixups */
+/* defined for legacy reasons, should be deprecated at some point */
+#define npy_sinhl sinhl
+#define npy_coshl coshl
+#define npy_tanhl tanhl
+#define npy_fabsl fabsl
+#define npy_floorl floorl
+#define npy_ceill ceill
+#define npy_rintl rintl
+#define npy_truncl truncl
+#define npy_cbrtl cbrtl
+#define npy_log10l log10l
+#define npy_logl logl
+#define npy_expm1l expm1l
+#define npy_asinl asinl
+#define npy_acosl acosl
+#define npy_atanl atanl
+#define npy_asinhl asinhl
+#define npy_acoshl acoshl
+#define npy_atanhl atanhl
+#define npy_log1pl log1pl
+#define npy_exp2l exp2l
+#define npy_fmodl fmodl
+#define npy_frexpl frexpl
+#define npy_ldexpl ldexpl
+#define npy_copysignl copysignl
+#define npy_nextafterl nextafterl
+
+npy_longdouble npy_spacingl(npy_longdouble x);
+
+/*
+ * Non standard functions
+ */
+NPY_INPLACE double npy_deg2rad(double x);
+NPY_INPLACE double npy_rad2deg(double x);
+NPY_INPLACE double npy_logaddexp(double x, double y);
+NPY_INPLACE double npy_logaddexp2(double x, double y);
+NPY_INPLACE double npy_divmod(double x, double y, double *modulus);
+NPY_INPLACE double npy_heaviside(double x, double h0);
+
+NPY_INPLACE float npy_deg2radf(float x);
+NPY_INPLACE float npy_rad2degf(float x);
+NPY_INPLACE float npy_logaddexpf(float x, float y);
+NPY_INPLACE float npy_logaddexp2f(float x, float y);
+NPY_INPLACE float npy_divmodf(float x, float y, float *modulus);
+NPY_INPLACE float npy_heavisidef(float x, float h0);
+
+NPY_INPLACE npy_longdouble npy_deg2radl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_rad2degl(npy_longdouble x);
+NPY_INPLACE npy_longdouble npy_logaddexpl(npy_longdouble x, npy_longdouble y);
+NPY_INPLACE npy_longdouble npy_logaddexp2l(npy_longdouble x, npy_longdouble y);
+NPY_INPLACE npy_longdouble npy_divmodl(npy_longdouble x, npy_longdouble y,
+                           npy_longdouble *modulus);
+NPY_INPLACE npy_longdouble npy_heavisidel(npy_longdouble x, npy_longdouble h0);
+
+#define npy_degrees npy_rad2deg
+#define npy_degreesf npy_rad2degf
+#define npy_degreesl npy_rad2degl
+
+#define npy_radians npy_deg2rad
+#define npy_radiansf npy_deg2radf
+#define npy_radiansl npy_deg2radl
+
+/*
+ * Complex declarations
+ */
+
+static inline double npy_creal(const npy_cdouble z)
+{
+#if defined(__cplusplus)
+    return z._Val[0];
+#else
+    return creal(z);
+#endif
+}
+
+static inline void npy_csetreal(npy_cdouble *z, const double r)
+{
+    ((double *) z)[0] = r;
+}
+
+static inline double npy_cimag(const npy_cdouble z)
+{
+#if defined(__cplusplus)
+    return z._Val[1];
+#else
+    return cimag(z);
+#endif
+}
+
+static inline void npy_csetimag(npy_cdouble *z, const double i)
+{
+    ((double *) z)[1] = i;
+}
+
+static inline float npy_crealf(const npy_cfloat z)
+{
+#if defined(__cplusplus)
+    return z._Val[0];
+#else
+    return crealf(z);
+#endif
+}
+
+static inline void npy_csetrealf(npy_cfloat *z, const float r)
+{
+    ((float *) z)[0] = r;
+}
+
+static inline float npy_cimagf(const npy_cfloat z)
+{
+#if defined(__cplusplus)
+    return z._Val[1];
+#else
+    return cimagf(z);
+#endif
+}
+
+static inline void npy_csetimagf(npy_cfloat *z, const float i)
+{
+    ((float *) z)[1] = i;
+}
+
+static inline npy_longdouble npy_creall(const npy_clongdouble z)
+{
+#if defined(__cplusplus)
+    return (npy_longdouble)z._Val[0];
+#else
+    return creall(z);
+#endif
+}
+
+static inline void npy_csetreall(npy_clongdouble *z, const longdouble_t r)
+{
+    ((longdouble_t *) z)[0] = r;
+}
+
+static inline npy_longdouble npy_cimagl(const npy_clongdouble z)
+{
+#if defined(__cplusplus)
+    return (npy_longdouble)z._Val[1];
+#else
+    return cimagl(z);
+#endif
+}
+
+static inline void npy_csetimagl(npy_clongdouble *z, const longdouble_t i)
+{
+    ((longdouble_t *) z)[1] = i;
+}
+
+#define NPY_CSETREAL(z, r) npy_csetreal(z, r)
+#define NPY_CSETIMAG(z, i) npy_csetimag(z, i)
+#define NPY_CSETREALF(z, r) npy_csetrealf(z, r)
+#define NPY_CSETIMAGF(z, i) npy_csetimagf(z, i)
+#define NPY_CSETREALL(z, r) npy_csetreall(z, r)
+#define NPY_CSETIMAGL(z, i) npy_csetimagl(z, i)
+
+static inline npy_cdouble npy_cpack(double x, double y)
+{
+    npy_cdouble z;
+    npy_csetreal(&z, x);
+    npy_csetimag(&z, y);
+    return z;
+}
+
+static inline npy_cfloat npy_cpackf(float x, float y)
+{
+    npy_cfloat z;
+    npy_csetrealf(&z, x);
+    npy_csetimagf(&z, y);
+    return z;
+}
+
+static inline npy_clongdouble npy_cpackl(npy_longdouble x, npy_longdouble y)
+{
+    npy_clongdouble z;
+    npy_csetreall(&z, x);
+    npy_csetimagl(&z, y);
+    return z;
+}
+
+/*
+ * Double precision complex functions
+ */
+double npy_cabs(npy_cdouble z);
+double npy_carg(npy_cdouble z);
+
+npy_cdouble npy_cexp(npy_cdouble z);
+npy_cdouble npy_clog(npy_cdouble z);
+npy_cdouble npy_cpow(npy_cdouble x, npy_cdouble y);
+
+npy_cdouble npy_csqrt(npy_cdouble z);
+
+npy_cdouble npy_ccos(npy_cdouble z);
+npy_cdouble npy_csin(npy_cdouble z);
+npy_cdouble npy_ctan(npy_cdouble z);
+
+npy_cdouble npy_ccosh(npy_cdouble z);
+npy_cdouble npy_csinh(npy_cdouble z);
+npy_cdouble npy_ctanh(npy_cdouble z);
+
+npy_cdouble npy_cacos(npy_cdouble z);
+npy_cdouble npy_casin(npy_cdouble z);
+npy_cdouble npy_catan(npy_cdouble z);
+
+npy_cdouble npy_cacosh(npy_cdouble z);
+npy_cdouble npy_casinh(npy_cdouble z);
+npy_cdouble npy_catanh(npy_cdouble z);
+
+/*
+ * Single precision complex functions
+ */
+float npy_cabsf(npy_cfloat z);
+float npy_cargf(npy_cfloat z);
+
+npy_cfloat npy_cexpf(npy_cfloat z);
+npy_cfloat npy_clogf(npy_cfloat z);
+npy_cfloat npy_cpowf(npy_cfloat x, npy_cfloat y);
+
+npy_cfloat npy_csqrtf(npy_cfloat z);
+
+npy_cfloat npy_ccosf(npy_cfloat z);
+npy_cfloat npy_csinf(npy_cfloat z);
+npy_cfloat npy_ctanf(npy_cfloat z);
+
+npy_cfloat npy_ccoshf(npy_cfloat z);
+npy_cfloat npy_csinhf(npy_cfloat z);
+npy_cfloat npy_ctanhf(npy_cfloat z);
+
+npy_cfloat npy_cacosf(npy_cfloat z);
+npy_cfloat npy_casinf(npy_cfloat z);
+npy_cfloat npy_catanf(npy_cfloat z);
+
+npy_cfloat npy_cacoshf(npy_cfloat z);
+npy_cfloat npy_casinhf(npy_cfloat z);
+npy_cfloat npy_catanhf(npy_cfloat z);
+
+
+/*
+ * Extended precision complex functions
+ */
+npy_longdouble npy_cabsl(npy_clongdouble z);
+npy_longdouble npy_cargl(npy_clongdouble z);
+
+npy_clongdouble npy_cexpl(npy_clongdouble z);
+npy_clongdouble npy_clogl(npy_clongdouble z);
+npy_clongdouble npy_cpowl(npy_clongdouble x, npy_clongdouble y);
+
+npy_clongdouble npy_csqrtl(npy_clongdouble z);
+
+npy_clongdouble npy_ccosl(npy_clongdouble z);
+npy_clongdouble npy_csinl(npy_clongdouble z);
+npy_clongdouble npy_ctanl(npy_clongdouble z);
+
+npy_clongdouble npy_ccoshl(npy_clongdouble z);
+npy_clongdouble npy_csinhl(npy_clongdouble z);
+npy_clongdouble npy_ctanhl(npy_clongdouble z);
+
+npy_clongdouble npy_cacosl(npy_clongdouble z);
+npy_clongdouble npy_casinl(npy_clongdouble z);
+npy_clongdouble npy_catanl(npy_clongdouble z);
+
+npy_clongdouble npy_cacoshl(npy_clongdouble z);
+npy_clongdouble npy_casinhl(npy_clongdouble z);
+npy_clongdouble npy_catanhl(npy_clongdouble z);
+
+
+/*
+ * Functions that set the floating point error
+ * status word.
+ */
+
+/*
+ * platform-dependent code translates floating point
+ * status to an integer sum of these values
+ */
+#define NPY_FPE_DIVIDEBYZERO  1
+#define NPY_FPE_OVERFLOW      2
+#define NPY_FPE_UNDERFLOW     4
+#define NPY_FPE_INVALID       8
+
+int npy_clear_floatstatus_barrier(char*);
+int npy_get_floatstatus_barrier(char*);
+/*
+ * use caution with these - clang and gcc8.1 are known to reorder calls
+ * to this form of the function which can defeat the check. The _barrier
+ * form of the call is preferable, where the argument is
+ * (char*)&local_variable
+ */
+int npy_clear_floatstatus(void);
+int npy_get_floatstatus(void);
+
+void npy_set_floatstatus_divbyzero(void);
+void npy_set_floatstatus_overflow(void);
+void npy_set_floatstatus_underflow(void);
+void npy_set_floatstatus_invalid(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#if NPY_INLINE_MATH
+#include "npy_math_internal.h"
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_MATH_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_no_deprecated_api.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_no_deprecated_api.h
new file mode 100644
index 0000000000000000000000000000000000000000..84e483d4d2b1254b08cc0d34d6e35375ddea3335
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_no_deprecated_api.h
@@ -0,0 +1,20 @@
+/*
+ * This include file is provided for inclusion in Cython *.pyd files where
+ * one would like to define the NPY_NO_DEPRECATED_API macro. It can be
+ * included by
+ *
+ * cdef extern from "npy_no_deprecated_api.h": pass
+ *
+ */
+#ifndef NPY_NO_DEPRECATED_API
+
+/* put this check here since there may be multiple includes in C extensions. */
+#if defined(NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_) || \
+    defined(NUMPY_CORE_INCLUDE_NUMPY_NPY_DEPRECATED_API_H) || \
+    defined(NUMPY_CORE_INCLUDE_NUMPY_OLD_DEFINES_H_)
+#error "npy_no_deprecated_api.h" must be first among numpy includes.
+#else
+#define NPY_NO_DEPRECATED_API NPY_API_VERSION
+#endif
+
+#endif  /* NPY_NO_DEPRECATED_API */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_os.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_os.h
new file mode 100644
index 0000000000000000000000000000000000000000..742160b580e41d407ce390267912e77386c9ec34
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/npy_os.h
@@ -0,0 +1,42 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_OS_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_OS_H_
+
+#if defined(linux) || defined(__linux) || defined(__linux__)
+    #define NPY_OS_LINUX
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || \
+            defined(__OpenBSD__) || defined(__DragonFly__)
+    #define NPY_OS_BSD
+    #ifdef __FreeBSD__
+        #define NPY_OS_FREEBSD
+    #elif defined(__NetBSD__)
+        #define NPY_OS_NETBSD
+    #elif defined(__OpenBSD__)
+        #define NPY_OS_OPENBSD
+    #elif defined(__DragonFly__)
+        #define NPY_OS_DRAGONFLY
+    #endif
+#elif defined(sun) || defined(__sun)
+    #define NPY_OS_SOLARIS
+#elif defined(__CYGWIN__)
+    #define NPY_OS_CYGWIN
+/* We are on Windows.*/
+#elif defined(_WIN32)
+  /* We are using MinGW (64-bit or 32-bit)*/
+  #if defined(__MINGW32__) || defined(__MINGW64__)
+    #define NPY_OS_MINGW
+  /* Otherwise, if _WIN64 is defined, we are targeting 64-bit Windows*/
+  #elif defined(_WIN64)
+    #define NPY_OS_WIN64
+  /* Otherwise assume we are targeting 32-bit Windows*/
+  #else
+    #define NPY_OS_WIN32
+  #endif
+#elif defined(__APPLE__)
+    #define NPY_OS_DARWIN
+#elif defined(__HAIKU__)
+    #define NPY_OS_HAIKU
+#else
+    #define NPY_OS_UNKNOWN
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_OS_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/numpyconfig.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/numpyconfig.h
new file mode 100644
index 0000000000000000000000000000000000000000..3489fac7090627e5c035d3f93c77af1268dc11f5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/numpyconfig.h
@@ -0,0 +1,185 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_NUMPYCONFIG_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_NPY_NUMPYCONFIG_H_
+
+#include "_numpyconfig.h"
+
+/*
+ * On Mac OS X, because there is only one configuration stage for all the archs
+ * in universal builds, any macro which depends on the arch needs to be
+ * hardcoded.
+ *
+ * Note that distutils/pip will attempt a universal2 build when Python itself
+ * is built as universal2, hence this hardcoding is needed even if we do not
+ * support universal2 wheels anymore (see gh-22796).
+ * This code block can be removed after we have dropped the setup.py based
+ * build completely.
+ */
+#ifdef __APPLE__
+    #undef NPY_SIZEOF_LONG
+
+    #ifdef __LP64__
+        #define NPY_SIZEOF_LONG         8
+    #else
+        #define NPY_SIZEOF_LONG         4
+    #endif
+
+    #undef NPY_SIZEOF_LONGDOUBLE
+    #undef NPY_SIZEOF_COMPLEX_LONGDOUBLE
+    #ifdef HAVE_LDOUBLE_IEEE_DOUBLE_LE
+      #undef HAVE_LDOUBLE_IEEE_DOUBLE_LE
+    #endif
+    #ifdef HAVE_LDOUBLE_INTEL_EXTENDED_16_BYTES_LE
+      #undef HAVE_LDOUBLE_INTEL_EXTENDED_16_BYTES_LE
+    #endif
+
+    #if defined(__arm64__)
+        #define NPY_SIZEOF_LONGDOUBLE         8
+        #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 16
+        #define HAVE_LDOUBLE_IEEE_DOUBLE_LE 1
+    #elif defined(__x86_64)
+        #define NPY_SIZEOF_LONGDOUBLE         16
+        #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 32
+        #define HAVE_LDOUBLE_INTEL_EXTENDED_16_BYTES_LE 1
+    #elif defined (__i386)
+        #define NPY_SIZEOF_LONGDOUBLE         12
+        #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 24
+    #elif defined(__ppc__) || defined (__ppc64__)
+        #define NPY_SIZEOF_LONGDOUBLE         16
+        #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 32
+    #else
+        #error "unknown architecture"
+    #endif
+#endif
+
+
+/**
+ * To help with both NPY_TARGET_VERSION and the NPY_NO_DEPRECATED_API macro,
+ * we include API version numbers for specific versions of NumPy.
+ * To exclude all API that was deprecated as of 1.7, add the following before
+ * #including any NumPy headers:
+ *   #define NPY_NO_DEPRECATED_API  NPY_1_7_API_VERSION
+ * The same is true for NPY_TARGET_VERSION, although NumPy will default to
+ * a backwards compatible build anyway.
+ */
+#define NPY_1_7_API_VERSION 0x00000007
+#define NPY_1_8_API_VERSION 0x00000008
+#define NPY_1_9_API_VERSION 0x00000009
+#define NPY_1_10_API_VERSION 0x0000000a
+#define NPY_1_11_API_VERSION 0x0000000a
+#define NPY_1_12_API_VERSION 0x0000000a
+#define NPY_1_13_API_VERSION 0x0000000b
+#define NPY_1_14_API_VERSION 0x0000000c
+#define NPY_1_15_API_VERSION 0x0000000c
+#define NPY_1_16_API_VERSION 0x0000000d
+#define NPY_1_17_API_VERSION 0x0000000d
+#define NPY_1_18_API_VERSION 0x0000000d
+#define NPY_1_19_API_VERSION 0x0000000d
+#define NPY_1_20_API_VERSION 0x0000000e
+#define NPY_1_21_API_VERSION 0x0000000e
+#define NPY_1_22_API_VERSION 0x0000000f
+#define NPY_1_23_API_VERSION 0x00000010
+#define NPY_1_24_API_VERSION 0x00000010
+#define NPY_1_25_API_VERSION 0x00000011
+#define NPY_2_0_API_VERSION 0x00000012
+#define NPY_2_1_API_VERSION 0x00000013
+#define NPY_2_2_API_VERSION 0x00000013
+#define NPY_2_3_API_VERSION 0x00000014
+#define NPY_2_4_API_VERSION 0x00000015
+
+
+/*
+ * Binary compatibility version number.  This number is increased
+ * whenever the C-API is changed such that binary compatibility is
+ * broken, i.e. whenever a recompile of extension modules is needed.
+ */
+#define NPY_VERSION NPY_ABI_VERSION
+
+/*
+ * Minor API version we are compiling to be compatible with.  The version
+ * Number is always increased when the API changes via: `NPY_API_VERSION`
+ * (and should maybe just track the NumPy version).
+ *
+ * If we have an internal build, we always target the current version of
+ * course.
+ *
+ * For downstream users, we default to an older version to provide them with
+ * maximum compatibility by default.  Downstream can choose to extend that
+ * default, or narrow it down if they wish to use newer API.  If you adjust
+ * this, consider the Python version support (example for 1.25.x):
+ *
+ * NumPy 1.25.x supports Python:                     3.9  3.10  3.11  (3.12)
+ * NumPy 1.19.x supports Python:      3.6  3.7  3.8  3.9
+ * NumPy 1.17.x supports Python: 3.5  3.6  3.7  3.8
+ * NumPy 1.15.x supports Python: ...  3.6  3.7
+ *
+ * Users of the stable ABI may wish to target the last Python that is not
+ * end of life.  This would be 3.8 at NumPy 1.25 release time.
+ * 1.17 as default was the choice of oldest-support-numpy at the time and
+ * has in practice no limit (compared to 1.19).  Even earlier becomes legacy.
+ */
+#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD
+    /* NumPy internal build, always use current version. */
+    #define NPY_FEATURE_VERSION NPY_API_VERSION
+#elif defined(NPY_TARGET_VERSION) && NPY_TARGET_VERSION
+    /* user provided a target version, use it */
+    #define NPY_FEATURE_VERSION NPY_TARGET_VERSION
+#else
+    /* Use the default (increase when dropping Python 3.11 support) */
+    #define NPY_FEATURE_VERSION NPY_1_23_API_VERSION
+#endif
+
+/* Sanity check the (requested) feature version */
+#if NPY_FEATURE_VERSION > NPY_API_VERSION
+    #error "NPY_TARGET_VERSION higher than NumPy headers!"
+#elif NPY_FEATURE_VERSION < NPY_1_15_API_VERSION
+    /* No support for irrelevant old targets, no need for error, but warn. */
+    #ifndef _MSC_VER
+        #warning "Requested NumPy target lower than supported NumPy 1.15."
+    #else
+        #define _WARN___STR2__(x) #x
+        #define _WARN___STR1__(x) _WARN___STR2__(x)
+        #define _WARN___LOC__ __FILE__ "(" _WARN___STR1__(__LINE__) ") : Warning Msg: "
+        #pragma message(_WARN___LOC__"Requested NumPy target lower than supported NumPy 1.15.")
+    #endif
+#endif
+
+/*
+ * We define a human readable translation to the Python version of NumPy
+ * for error messages (and also to allow grepping the binaries for conda).
+ */
+#if NPY_FEATURE_VERSION == NPY_1_7_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "1.7"
+#elif NPY_FEATURE_VERSION == NPY_1_8_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "1.8"
+#elif NPY_FEATURE_VERSION == NPY_1_9_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "1.9"
+#elif NPY_FEATURE_VERSION == NPY_1_10_API_VERSION  /* also 1.11, 1.12 */
+    #define NPY_FEATURE_VERSION_STRING "1.10"
+#elif NPY_FEATURE_VERSION == NPY_1_13_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "1.13"
+#elif NPY_FEATURE_VERSION == NPY_1_14_API_VERSION  /* also 1.15 */
+    #define NPY_FEATURE_VERSION_STRING "1.14"
+#elif NPY_FEATURE_VERSION == NPY_1_16_API_VERSION  /* also 1.17, 1.18, 1.19 */
+    #define NPY_FEATURE_VERSION_STRING "1.16"
+#elif NPY_FEATURE_VERSION == NPY_1_20_API_VERSION  /* also 1.21 */
+    #define NPY_FEATURE_VERSION_STRING "1.20"
+#elif NPY_FEATURE_VERSION == NPY_1_22_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "1.22"
+#elif NPY_FEATURE_VERSION == NPY_1_23_API_VERSION  /* also 1.24 */
+    #define NPY_FEATURE_VERSION_STRING "1.23"
+#elif NPY_FEATURE_VERSION == NPY_1_25_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "1.25"
+#elif NPY_FEATURE_VERSION == NPY_2_0_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "2.0"
+#elif NPY_FEATURE_VERSION == NPY_2_1_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "2.1"
+#elif NPY_FEATURE_VERSION == NPY_2_3_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "2.3"
+#elif NPY_FEATURE_VERSION == NPY_2_4_API_VERSION
+    #define NPY_FEATURE_VERSION_STRING "2.4"
+#else
+    #error "Missing version string define for new NumPy version."
+#endif
+
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_NPY_NUMPYCONFIG_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/LICENSE.txt b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/LICENSE.txt
new file mode 100644
index 0000000000000000000000000000000000000000..375a7faa07019536b6b9aad67949fbfa5b4c12db
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/LICENSE.txt
@@ -0,0 +1,21 @@
+  zlib License
+  ------------
+
+  Copyright (C) 2010 - 2019 ridiculous_fish, <libdivide@ridiculousfish.com>
+  Copyright (C) 2016 - 2019 Kim Walisch, <kim.walisch@gmail.com>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/bitgen.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/bitgen.h
new file mode 100644
index 0000000000000000000000000000000000000000..42c492575994a5a511d763ee1ef9fc86867a437d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/bitgen.h
@@ -0,0 +1,20 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_RANDOM_BITGEN_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_RANDOM_BITGEN_H_
+
+#pragma once
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+/* Must match the declaration in numpy/random/<any>.pxd */
+
+typedef struct bitgen {
+  void *state;
+  uint64_t (*next_uint64)(void *st);
+  uint32_t (*next_uint32)(void *st);
+  double (*next_double)(void *st);
+  uint64_t (*next_raw)(void *st);
+} bitgen_t;
+
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_RANDOM_BITGEN_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/distributions.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/distributions.h
new file mode 100644
index 0000000000000000000000000000000000000000..3d3d6ca8ecfd3859286525a45e6df950b15f389f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/distributions.h
@@ -0,0 +1,209 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_RANDOM_DISTRIBUTIONS_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_RANDOM_DISTRIBUTIONS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <Python.h>
+#include "numpy/npy_common.h"
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "numpy/npy_math.h"
+#include "numpy/random/bitgen.h"
+
+/*
+ * RAND_INT_TYPE is used to share integer generators with RandomState which
+ * used long in place of int64_t. If changing a distribution that uses
+ * RAND_INT_TYPE, then the original unmodified copy must be retained for
+ * use in RandomState by copying to the legacy distributions source file.
+ */
+#ifdef NP_RANDOM_LEGACY
+#define RAND_INT_TYPE long
+#define RAND_INT_MAX LONG_MAX
+#else
+#define RAND_INT_TYPE int64_t
+#define RAND_INT_MAX INT64_MAX
+#endif
+
+#ifdef _MSC_VER
+#define DECLDIR __declspec(dllexport)
+#else
+#define DECLDIR extern
+#endif
+
+#ifndef MIN
+#define MIN(x, y) (((x) < (y)) ? x : y)
+#define MAX(x, y) (((x) > (y)) ? x : y)
+#endif
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846264338328
+#endif
+
+typedef struct s_binomial_t {
+  int has_binomial; /* !=0: following parameters initialized for binomial */
+  double psave;
+  RAND_INT_TYPE nsave;
+  double r;
+  double q;
+  double fm;
+  RAND_INT_TYPE m;
+  double p1;
+  double xm;
+  double xl;
+  double xr;
+  double c;
+  double laml;
+  double lamr;
+  double p2;
+  double p3;
+  double p4;
+} binomial_t;
+
+DECLDIR float random_standard_uniform_f(bitgen_t *bitgen_state);
+DECLDIR double random_standard_uniform(bitgen_t *bitgen_state);
+DECLDIR void random_standard_uniform_fill(bitgen_t *, npy_intp, double *);
+DECLDIR void random_standard_uniform_fill_f(bitgen_t *, npy_intp, float *);
+
+DECLDIR int64_t random_positive_int64(bitgen_t *bitgen_state);
+DECLDIR int32_t random_positive_int32(bitgen_t *bitgen_state);
+DECLDIR int64_t random_positive_int(bitgen_t *bitgen_state);
+DECLDIR uint64_t random_uint(bitgen_t *bitgen_state);
+
+DECLDIR double random_standard_exponential(bitgen_t *bitgen_state);
+DECLDIR float random_standard_exponential_f(bitgen_t *bitgen_state);
+DECLDIR void random_standard_exponential_fill(bitgen_t *, npy_intp, double *);
+DECLDIR void random_standard_exponential_fill_f(bitgen_t *, npy_intp, float *);
+DECLDIR void random_standard_exponential_inv_fill(bitgen_t *, npy_intp, double *);
+DECLDIR void random_standard_exponential_inv_fill_f(bitgen_t *, npy_intp, float *);
+
+DECLDIR double random_standard_normal(bitgen_t *bitgen_state);
+DECLDIR float random_standard_normal_f(bitgen_t *bitgen_state);
+DECLDIR void random_standard_normal_fill(bitgen_t *, npy_intp, double *);
+DECLDIR void random_standard_normal_fill_f(bitgen_t *, npy_intp, float *);
+DECLDIR double random_standard_gamma(bitgen_t *bitgen_state, double shape);
+DECLDIR float random_standard_gamma_f(bitgen_t *bitgen_state, float shape);
+
+DECLDIR double random_normal(bitgen_t *bitgen_state, double loc, double scale);
+
+DECLDIR double random_gamma(bitgen_t *bitgen_state, double shape, double scale);
+DECLDIR float random_gamma_f(bitgen_t *bitgen_state, float shape, float scale);
+
+DECLDIR double random_exponential(bitgen_t *bitgen_state, double scale);
+DECLDIR double random_uniform(bitgen_t *bitgen_state, double lower, double range);
+DECLDIR double random_beta(bitgen_t *bitgen_state, double a, double b);
+DECLDIR double random_chisquare(bitgen_t *bitgen_state, double df);
+DECLDIR double random_f(bitgen_t *bitgen_state, double dfnum, double dfden);
+DECLDIR double random_standard_cauchy(bitgen_t *bitgen_state);
+DECLDIR double random_pareto(bitgen_t *bitgen_state, double a);
+DECLDIR double random_weibull(bitgen_t *bitgen_state, double a);
+DECLDIR double random_power(bitgen_t *bitgen_state, double a);
+DECLDIR double random_laplace(bitgen_t *bitgen_state, double loc, double scale);
+DECLDIR double random_gumbel(bitgen_t *bitgen_state, double loc, double scale);
+DECLDIR double random_logistic(bitgen_t *bitgen_state, double loc, double scale);
+DECLDIR double random_lognormal(bitgen_t *bitgen_state, double mean, double sigma);
+DECLDIR double random_rayleigh(bitgen_t *bitgen_state, double mode);
+DECLDIR double random_standard_t(bitgen_t *bitgen_state, double df);
+DECLDIR double random_noncentral_chisquare(bitgen_t *bitgen_state, double df,
+                                           double nonc);
+DECLDIR double random_noncentral_f(bitgen_t *bitgen_state, double dfnum,
+                                   double dfden, double nonc);
+DECLDIR double random_wald(bitgen_t *bitgen_state, double mean, double scale);
+DECLDIR double random_vonmises(bitgen_t *bitgen_state, double mu, double kappa);
+DECLDIR double random_triangular(bitgen_t *bitgen_state, double left, double mode,
+                                 double right);
+
+DECLDIR RAND_INT_TYPE random_poisson(bitgen_t *bitgen_state, double lam);
+DECLDIR RAND_INT_TYPE random_negative_binomial(bitgen_t *bitgen_state, double n,
+                                 double p);
+
+DECLDIR int64_t random_binomial(bitgen_t *bitgen_state, double p,
+                                int64_t n, binomial_t *binomial);
+
+DECLDIR int64_t random_logseries(bitgen_t *bitgen_state, double p);
+DECLDIR int64_t random_geometric(bitgen_t *bitgen_state, double p);
+DECLDIR RAND_INT_TYPE random_geometric_search(bitgen_t *bitgen_state, double p);
+DECLDIR RAND_INT_TYPE random_zipf(bitgen_t *bitgen_state, double a);
+DECLDIR int64_t random_hypergeometric(bitgen_t *bitgen_state,
+                                      int64_t good, int64_t bad, int64_t sample);
+DECLDIR uint64_t random_interval(bitgen_t *bitgen_state, uint64_t max);
+
+/* Generate random uint64 numbers in closed interval [off, off + rng]. */
+DECLDIR uint64_t random_bounded_uint64(bitgen_t *bitgen_state, uint64_t off,
+                                       uint64_t rng, uint64_t mask,
+                                       bool use_masked);
+
+/* Generate random uint32 numbers in closed interval [off, off + rng]. */
+DECLDIR uint32_t random_buffered_bounded_uint32(bitgen_t *bitgen_state,
+                                                uint32_t off, uint32_t rng,
+                                                uint32_t mask, bool use_masked,
+                                                int *bcnt, uint32_t *buf);
+DECLDIR uint16_t random_buffered_bounded_uint16(bitgen_t *bitgen_state,
+                                                uint16_t off, uint16_t rng,
+                                                uint16_t mask, bool use_masked,
+                                                int *bcnt, uint32_t *buf);
+DECLDIR uint8_t random_buffered_bounded_uint8(bitgen_t *bitgen_state, uint8_t off,
+                                              uint8_t rng, uint8_t mask,
+                                              bool use_masked, int *bcnt,
+                                              uint32_t *buf);
+DECLDIR npy_bool random_buffered_bounded_bool(bitgen_t *bitgen_state, npy_bool off,
+                                              npy_bool rng, npy_bool mask,
+                                              bool use_masked, int *bcnt,
+                                              uint32_t *buf);
+
+DECLDIR void random_bounded_uint64_fill(bitgen_t *bitgen_state, uint64_t off,
+                                        uint64_t rng, npy_intp cnt,
+                                        bool use_masked, uint64_t *out);
+DECLDIR void random_bounded_uint32_fill(bitgen_t *bitgen_state, uint32_t off,
+                                        uint32_t rng, npy_intp cnt,
+                                        bool use_masked, uint32_t *out);
+DECLDIR void random_bounded_uint16_fill(bitgen_t *bitgen_state, uint16_t off,
+                                        uint16_t rng, npy_intp cnt,
+                                        bool use_masked, uint16_t *out);
+DECLDIR void random_bounded_uint8_fill(bitgen_t *bitgen_state, uint8_t off,
+                                       uint8_t rng, npy_intp cnt,
+                                       bool use_masked, uint8_t *out);
+DECLDIR void random_bounded_bool_fill(bitgen_t *bitgen_state, npy_bool off,
+                                      npy_bool rng, npy_intp cnt,
+                                      bool use_masked, npy_bool *out);
+
+DECLDIR void random_multinomial(bitgen_t *bitgen_state, RAND_INT_TYPE n, RAND_INT_TYPE *mnix,
+                                double *pix, npy_intp d, binomial_t *binomial);
+
+/* multivariate hypergeometric, "count" method */
+DECLDIR int random_multivariate_hypergeometric_count(bitgen_t *bitgen_state,
+                              int64_t total,
+                              size_t num_colors, int64_t *colors,
+                              int64_t nsample,
+                              size_t num_variates, int64_t *variates);
+
+/* multivariate hypergeometric, "marginals" method */
+DECLDIR void random_multivariate_hypergeometric_marginals(bitgen_t *bitgen_state,
+                                   int64_t total,
+                                   size_t num_colors, int64_t *colors,
+                                   int64_t nsample,
+                                   size_t num_variates, int64_t *variates);
+
+/* Common to legacy-distributions.c and distributions.c but not exported */
+
+RAND_INT_TYPE random_binomial_btpe(bitgen_t *bitgen_state,
+                                   RAND_INT_TYPE n,
+                                   double p,
+                                   binomial_t *binomial);
+RAND_INT_TYPE random_binomial_inversion(bitgen_t *bitgen_state,
+                                        RAND_INT_TYPE n,
+                                        double p,
+                                        binomial_t *binomial);
+double random_loggam(double x);
+static inline double next_double(bitgen_t *bitgen_state) {
+    return bitgen_state->next_double(bitgen_state->state);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_RANDOM_DISTRIBUTIONS_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/libdivide.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/libdivide.h
new file mode 100644
index 0000000000000000000000000000000000000000..3a87c57d4c855444d37ad4e0d042b7808f88f917
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/random/libdivide.h
@@ -0,0 +1,2079 @@
+// libdivide.h - Optimized integer division
+// https://libdivide.com
+//
+// Copyright (C) 2010 - 2019 ridiculous_fish, <libdivide@ridiculousfish.com>
+// Copyright (C) 2016 - 2019 Kim Walisch, <kim.walisch@gmail.com>
+//
+// libdivide is dual-licensed under the Boost or zlib licenses.
+// You may use libdivide under the terms of either of these.
+// See LICENSE.txt for more details.
+
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_LIBDIVIDE_LIBDIVIDE_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_LIBDIVIDE_LIBDIVIDE_H_
+
+#define LIBDIVIDE_VERSION "3.0"
+#define LIBDIVIDE_VERSION_MAJOR 3
+#define LIBDIVIDE_VERSION_MINOR 0
+
+#include <stdint.h>
+
+#if defined(__cplusplus)
+    #include <cstdlib>
+    #include <cstdio>
+    #include <type_traits>
+#else
+    #include <stdlib.h>
+    #include <stdio.h>
+#endif
+
+#if defined(LIBDIVIDE_AVX512)
+    #include <immintrin.h>
+#elif defined(LIBDIVIDE_AVX2)
+    #include <immintrin.h>
+#elif defined(LIBDIVIDE_SSE2)
+    #include <emmintrin.h>
+#endif
+
+#if defined(_MSC_VER)
+    #include <intrin.h>
+    // disable warning C4146: unary minus operator applied
+    // to unsigned type, result still unsigned
+    #pragma warning(disable: 4146)
+    #define LIBDIVIDE_VC
+#endif
+
+#if !defined(__has_builtin)
+    #define __has_builtin(x) 0
+#endif
+
+#if defined(__SIZEOF_INT128__)
+    #define HAS_INT128_T
+    // clang-cl on Windows does not yet support 128-bit division
+    #if !(defined(__clang__) && defined(LIBDIVIDE_VC))
+        #define HAS_INT128_DIV
+    #endif
+#endif
+
+#if defined(__x86_64__) || defined(_M_X64)
+    #define LIBDIVIDE_X86_64
+#endif
+
+#if defined(__i386__)
+    #define LIBDIVIDE_i386
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+    #define LIBDIVIDE_GCC_STYLE_ASM
+#endif
+
+#if defined(__cplusplus) || defined(LIBDIVIDE_VC)
+    #define LIBDIVIDE_FUNCTION __FUNCTION__
+#else
+    #define LIBDIVIDE_FUNCTION __func__
+#endif
+
+#define LIBDIVIDE_ERROR(msg) \
+    do { \
+        fprintf(stderr, "libdivide.h:%d: %s(): Error: %s\n", \
+            __LINE__, LIBDIVIDE_FUNCTION, msg); \
+        abort(); \
+    } while (0)
+
+#if defined(LIBDIVIDE_ASSERTIONS_ON)
+    #define LIBDIVIDE_ASSERT(x) \
+        do { \
+            if (!(x)) { \
+                fprintf(stderr, "libdivide.h:%d: %s(): Assertion failed: %s\n", \
+                    __LINE__, LIBDIVIDE_FUNCTION, #x); \
+                abort(); \
+            } \
+        } while (0)
+#else
+    #define LIBDIVIDE_ASSERT(x)
+#endif
+
+#ifdef __cplusplus
+namespace libdivide {
+#endif
+
+// pack divider structs to prevent compilers from padding.
+// This reduces memory usage by up to 43% when using a large
+// array of libdivide dividers and improves performance
+// by up to 10% because of reduced memory bandwidth.
+#pragma pack(push, 1)
+
+struct libdivide_u32_t {
+    uint32_t magic;
+    uint8_t more;
+};
+
+struct libdivide_s32_t {
+    int32_t magic;
+    uint8_t more;
+};
+
+struct libdivide_u64_t {
+    uint64_t magic;
+    uint8_t more;
+};
+
+struct libdivide_s64_t {
+    int64_t magic;
+    uint8_t more;
+};
+
+struct libdivide_u32_branchfree_t {
+    uint32_t magic;
+    uint8_t more;
+};
+
+struct libdivide_s32_branchfree_t {
+    int32_t magic;
+    uint8_t more;
+};
+
+struct libdivide_u64_branchfree_t {
+    uint64_t magic;
+    uint8_t more;
+};
+
+struct libdivide_s64_branchfree_t {
+    int64_t magic;
+    uint8_t more;
+};
+
+#pragma pack(pop)
+
+// Explanation of the "more" field:
+//
+// * Bits 0-5 is the shift value (for shift path or mult path).
+// * Bit 6 is the add indicator for mult path.
+// * Bit 7 is set if the divisor is negative. We use bit 7 as the negative
+//   divisor indicator so that we can efficiently use sign extension to
+//   create a bitmask with all bits set to 1 (if the divisor is negative)
+//   or 0 (if the divisor is positive).
+//
+// u32: [0-4] shift value
+//      [5] ignored
+//      [6] add indicator
+//      magic number of 0 indicates shift path
+//
+// s32: [0-4] shift value
+//      [5] ignored
+//      [6] add indicator
+//      [7] indicates negative divisor
+//      magic number of 0 indicates shift path
+//
+// u64: [0-5] shift value
+//      [6] add indicator
+//      magic number of 0 indicates shift path
+//
+// s64: [0-5] shift value
+//      [6] add indicator
+//      [7] indicates negative divisor
+//      magic number of 0 indicates shift path
+//
+// In s32 and s64 branchfree modes, the magic number is negated according to
+// whether the divisor is negated. In branchfree strategy, it is not negated.
+
+enum {
+    LIBDIVIDE_32_SHIFT_MASK = 0x1F,
+    LIBDIVIDE_64_SHIFT_MASK = 0x3F,
+    LIBDIVIDE_ADD_MARKER = 0x40,
+    LIBDIVIDE_NEGATIVE_DIVISOR = 0x80
+};
+
+static inline struct libdivide_s32_t libdivide_s32_gen(int32_t d);
+static inline struct libdivide_u32_t libdivide_u32_gen(uint32_t d);
+static inline struct libdivide_s64_t libdivide_s64_gen(int64_t d);
+static inline struct libdivide_u64_t libdivide_u64_gen(uint64_t d);
+
+static inline struct libdivide_s32_branchfree_t libdivide_s32_branchfree_gen(int32_t d);
+static inline struct libdivide_u32_branchfree_t libdivide_u32_branchfree_gen(uint32_t d);
+static inline struct libdivide_s64_branchfree_t libdivide_s64_branchfree_gen(int64_t d);
+static inline struct libdivide_u64_branchfree_t libdivide_u64_branchfree_gen(uint64_t d);
+
+static inline int32_t  libdivide_s32_do(int32_t numer, const struct libdivide_s32_t *denom);
+static inline uint32_t libdivide_u32_do(uint32_t numer, const struct libdivide_u32_t *denom);
+static inline int64_t  libdivide_s64_do(int64_t numer, const struct libdivide_s64_t *denom);
+static inline uint64_t libdivide_u64_do(uint64_t numer, const struct libdivide_u64_t *denom);
+
+static inline int32_t  libdivide_s32_branchfree_do(int32_t numer, const struct libdivide_s32_branchfree_t *denom);
+static inline uint32_t libdivide_u32_branchfree_do(uint32_t numer, const struct libdivide_u32_branchfree_t *denom);
+static inline int64_t  libdivide_s64_branchfree_do(int64_t numer, const struct libdivide_s64_branchfree_t *denom);
+static inline uint64_t libdivide_u64_branchfree_do(uint64_t numer, const struct libdivide_u64_branchfree_t *denom);
+
+static inline int32_t  libdivide_s32_recover(const struct libdivide_s32_t *denom);
+static inline uint32_t libdivide_u32_recover(const struct libdivide_u32_t *denom);
+static inline int64_t  libdivide_s64_recover(const struct libdivide_s64_t *denom);
+static inline uint64_t libdivide_u64_recover(const struct libdivide_u64_t *denom);
+
+static inline int32_t  libdivide_s32_branchfree_recover(const struct libdivide_s32_branchfree_t *denom);
+static inline uint32_t libdivide_u32_branchfree_recover(const struct libdivide_u32_branchfree_t *denom);
+static inline int64_t  libdivide_s64_branchfree_recover(const struct libdivide_s64_branchfree_t *denom);
+static inline uint64_t libdivide_u64_branchfree_recover(const struct libdivide_u64_branchfree_t *denom);
+
+//////// Internal Utility Functions
+
+static inline uint32_t libdivide_mullhi_u32(uint32_t x, uint32_t y) {
+    uint64_t xl = x, yl = y;
+    uint64_t rl = xl * yl;
+    return (uint32_t)(rl >> 32);
+}
+
+static inline int32_t libdivide_mullhi_s32(int32_t x, int32_t y) {
+    int64_t xl = x, yl = y;
+    int64_t rl = xl * yl;
+    // needs to be arithmetic shift
+    return (int32_t)(rl >> 32);
+}
+
+static inline uint64_t libdivide_mullhi_u64(uint64_t x, uint64_t y) {
+#if defined(LIBDIVIDE_VC) && \
+    defined(LIBDIVIDE_X86_64)
+    return __umulh(x, y);
+#elif defined(HAS_INT128_T)
+    __uint128_t xl = x, yl = y;
+    __uint128_t rl = xl * yl;
+    return (uint64_t)(rl >> 64);
+#else
+    // full 128 bits are x0 * y0 + (x0 * y1 << 32) + (x1 * y0 << 32) + (x1 * y1 << 64)
+    uint32_t mask = 0xFFFFFFFF;
+    uint32_t x0 = (uint32_t)(x & mask);
+    uint32_t x1 = (uint32_t)(x >> 32);
+    uint32_t y0 = (uint32_t)(y & mask);
+    uint32_t y1 = (uint32_t)(y >> 32);
+    uint32_t x0y0_hi = libdivide_mullhi_u32(x0, y0);
+    uint64_t x0y1 = x0 * (uint64_t)y1;
+    uint64_t x1y0 = x1 * (uint64_t)y0;
+    uint64_t x1y1 = x1 * (uint64_t)y1;
+    uint64_t temp = x1y0 + x0y0_hi;
+    uint64_t temp_lo = temp & mask;
+    uint64_t temp_hi = temp >> 32;
+
+    return x1y1 + temp_hi + ((temp_lo + x0y1) >> 32);
+#endif
+}
+
+static inline int64_t libdivide_mullhi_s64(int64_t x, int64_t y) {
+#if defined(LIBDIVIDE_VC) && \
+    defined(LIBDIVIDE_X86_64)
+    return __mulh(x, y);
+#elif defined(HAS_INT128_T)
+    __int128_t xl = x, yl = y;
+    __int128_t rl = xl * yl;
+    return (int64_t)(rl >> 64);
+#else
+    // full 128 bits are x0 * y0 + (x0 * y1 << 32) + (x1 * y0 << 32) + (x1 * y1 << 64)
+    uint32_t mask = 0xFFFFFFFF;
+    uint32_t x0 = (uint32_t)(x & mask);
+    uint32_t y0 = (uint32_t)(y & mask);
+    int32_t x1 = (int32_t)(x >> 32);
+    int32_t y1 = (int32_t)(y >> 32);
+    uint32_t x0y0_hi = libdivide_mullhi_u32(x0, y0);
+    int64_t t = x1 * (int64_t)y0 + x0y0_hi;
+    int64_t w1 = x0 * (int64_t)y1 + (t & mask);
+
+    return x1 * (int64_t)y1 + (t >> 32) + (w1 >> 32);
+#endif
+}
+
+static inline int32_t libdivide_count_leading_zeros32(uint32_t val) {
+#if defined(__GNUC__) || \
+    __has_builtin(__builtin_clz)
+    // Fast way to count leading zeros
+    return __builtin_clz(val);
+#elif defined(LIBDIVIDE_VC)
+    unsigned long result;
+    if (_BitScanReverse(&result, val)) {
+        return 31 - result;
+    }
+    return 0;
+#else
+    if (val == 0)
+        return 32;
+    int32_t result = 8;
+    uint32_t hi = 0xFFU << 24;
+    while ((val & hi) == 0) {
+        hi >>= 8;
+        result += 8;
+    }
+    while (val & hi) {
+        result -= 1;
+        hi <<= 1;
+    }
+    return result;
+#endif
+}
+
+static inline int32_t libdivide_count_leading_zeros64(uint64_t val) {
+#if defined(__GNUC__) || \
+    __has_builtin(__builtin_clzll)
+    // Fast way to count leading zeros
+    return __builtin_clzll(val);
+#elif defined(LIBDIVIDE_VC) && defined(_WIN64)
+    unsigned long result;
+    if (_BitScanReverse64(&result, val)) {
+        return 63 - result;
+    }
+    return 0;
+#else
+    uint32_t hi = val >> 32;
+    uint32_t lo = val & 0xFFFFFFFF;
+    if (hi != 0) return libdivide_count_leading_zeros32(hi);
+    return 32 + libdivide_count_leading_zeros32(lo);
+#endif
+}
+
+// libdivide_64_div_32_to_32: divides a 64-bit uint {u1, u0} by a 32-bit
+// uint {v}. The result must fit in 32 bits.
+// Returns the quotient directly and the remainder in *r
+static inline uint32_t libdivide_64_div_32_to_32(uint32_t u1, uint32_t u0, uint32_t v, uint32_t *r) {
+#if (defined(LIBDIVIDE_i386) || defined(LIBDIVIDE_X86_64)) && \
+     defined(LIBDIVIDE_GCC_STYLE_ASM)
+    uint32_t result;
+    __asm__("divl %[v]"
+            : "=a"(result), "=d"(*r)
+            : [v] "r"(v), "a"(u0), "d"(u1)
+            );
+    return result;
+#else
+    uint64_t n = ((uint64_t)u1 << 32) | u0;
+    uint32_t result = (uint32_t)(n / v);
+    *r = (uint32_t)(n - result * (uint64_t)v);
+    return result;
+#endif
+}
+
+// libdivide_128_div_64_to_64: divides a 128-bit uint {u1, u0} by a 64-bit
+// uint {v}. The result must fit in 64 bits.
+// Returns the quotient directly and the remainder in *r
+static uint64_t libdivide_128_div_64_to_64(uint64_t u1, uint64_t u0, uint64_t v, uint64_t *r) {
+#if defined(LIBDIVIDE_X86_64) && \
+    defined(LIBDIVIDE_GCC_STYLE_ASM)
+    uint64_t result;
+    __asm__("divq %[v]"
+            : "=a"(result), "=d"(*r)
+            : [v] "r"(v), "a"(u0), "d"(u1)
+            );
+    return result;
+#elif defined(HAS_INT128_T) && \
+      defined(HAS_INT128_DIV)
+    __uint128_t n = ((__uint128_t)u1 << 64) | u0;
+    uint64_t result = (uint64_t)(n / v);
+    *r = (uint64_t)(n - result * (__uint128_t)v);
+    return result;
+#else
+    // Code taken from Hacker's Delight:
+    // http://www.hackersdelight.org/HDcode/divlu.c.
+    // License permits inclusion here per:
+    // http://www.hackersdelight.org/permissions.htm
+
+    const uint64_t b = (1ULL << 32); // Number base (32 bits)
+    uint64_t un1, un0; // Norm. dividend LSD's
+    uint64_t vn1, vn0; // Norm. divisor digits
+    uint64_t q1, q0; // Quotient digits
+    uint64_t un64, un21, un10; // Dividend digit pairs
+    uint64_t rhat; // A remainder
+    int32_t s; // Shift amount for norm
+
+    // If overflow, set rem. to an impossible value,
+    // and return the largest possible quotient
+    if (u1 >= v) {
+        *r = (uint64_t) -1;
+        return (uint64_t) -1;
+    }
+
+    // count leading zeros
+    s = libdivide_count_leading_zeros64(v);
+    if (s > 0) {
+        // Normalize divisor
+        v = v << s;
+        un64 = (u1 << s) | (u0 >> (64 - s));
+        un10 = u0 << s; // Shift dividend left
+    } else {
+        // Avoid undefined behavior of (u0 >> 64).
+        // The behavior is undefined if the right operand is
+        // negative, or greater than or equal to the length
+        // in bits of the promoted left operand.
+        un64 = u1;
+        un10 = u0;
+    }
+
+    // Break divisor up into two 32-bit digits
+    vn1 = v >> 32;
+    vn0 = v & 0xFFFFFFFF;
+
+    // Break right half of dividend into two digits
+    un1 = un10 >> 32;
+    un0 = un10 & 0xFFFFFFFF;
+
+    // Compute the first quotient digit, q1
+    q1 = un64 / vn1;
+    rhat = un64 - q1 * vn1;
+
+    while (q1 >= b || q1 * vn0 > b * rhat + un1) {
+        q1 = q1 - 1;
+        rhat = rhat + vn1;
+        if (rhat >= b)
+            break;
+    }
+
+     // Multiply and subtract
+    un21 = un64 * b + un1 - q1 * v;
+
+    // Compute the second quotient digit
+    q0 = un21 / vn1;
+    rhat = un21 - q0 * vn1;
+
+    while (q0 >= b || q0 * vn0 > b * rhat + un0) {
+        q0 = q0 - 1;
+        rhat = rhat + vn1;
+        if (rhat >= b)
+            break;
+    }
+
+    *r = (un21 * b + un0 - q0 * v) >> s;
+    return q1 * b + q0;
+#endif
+}
+
+// Bitshift a u128 in place, left (signed_shift > 0) or right (signed_shift < 0)
+static inline void libdivide_u128_shift(uint64_t *u1, uint64_t *u0, int32_t signed_shift) {
+    if (signed_shift > 0) {
+        uint32_t shift = signed_shift;
+        *u1 <<= shift;
+        *u1 |= *u0 >> (64 - shift);
+        *u0 <<= shift;
+    }
+    else if (signed_shift < 0) {
+        uint32_t shift = -signed_shift;
+        *u0 >>= shift;
+        *u0 |= *u1 << (64 - shift);
+        *u1 >>= shift;
+    }
+}
+
+// Computes a 128 / 128 -> 64 bit division, with a 128 bit remainder.
+static uint64_t libdivide_128_div_128_to_64(uint64_t u_hi, uint64_t u_lo, uint64_t v_hi, uint64_t v_lo, uint64_t *r_hi, uint64_t *r_lo) {
+#if defined(HAS_INT128_T) && \
+    defined(HAS_INT128_DIV)
+    __uint128_t ufull = u_hi;
+    __uint128_t vfull = v_hi;
+    ufull = (ufull << 64) | u_lo;
+    vfull = (vfull << 64) | v_lo;
+    uint64_t res = (uint64_t)(ufull / vfull);
+    __uint128_t remainder = ufull - (vfull * res);
+    *r_lo = (uint64_t)remainder;
+    *r_hi = (uint64_t)(remainder >> 64);
+    return res;
+#else
+    // Adapted from "Unsigned Doubleword Division" in Hacker's Delight
+    // We want to compute u / v
+    typedef struct { uint64_t hi; uint64_t lo; } u128_t;
+    u128_t u = {u_hi, u_lo};
+    u128_t v = {v_hi, v_lo};
+
+    if (v.hi == 0) {
+        // divisor v is a 64 bit value, so we just need one 128/64 division
+        // Note that we are simpler than Hacker's Delight here, because we know
+        // the quotient fits in 64 bits whereas Hacker's Delight demands a full
+        // 128 bit quotient
+        *r_hi = 0;
+        return libdivide_128_div_64_to_64(u.hi, u.lo, v.lo, r_lo);
+    }
+    // Here v >= 2**64
+    // We know that v.hi != 0, so count leading zeros is OK
+    // We have 0 <= n <= 63
+    uint32_t n = libdivide_count_leading_zeros64(v.hi);
+
+    // Normalize the divisor so its MSB is 1
+    u128_t v1t = v;
+    libdivide_u128_shift(&v1t.hi, &v1t.lo, n);
+    uint64_t v1 = v1t.hi; // i.e. v1 = v1t >> 64
+
+    // To ensure no overflow
+    u128_t u1 = u;
+    libdivide_u128_shift(&u1.hi, &u1.lo, -1);
+
+    // Get quotient from divide unsigned insn.
+    uint64_t rem_ignored;
+    uint64_t q1 = libdivide_128_div_64_to_64(u1.hi, u1.lo, v1, &rem_ignored);
+
+    // Undo normalization and division of u by 2.
+    u128_t q0 = {0, q1};
+    libdivide_u128_shift(&q0.hi, &q0.lo, n);
+    libdivide_u128_shift(&q0.hi, &q0.lo, -63);
+
+    // Make q0 correct or too small by 1
+    // Equivalent to `if (q0 != 0) q0 = q0 - 1;`
+    if (q0.hi != 0 || q0.lo != 0) {
+        q0.hi -= (q0.lo == 0); // borrow
+        q0.lo -= 1;
+    }
+
+    // Now q0 is correct.
+    // Compute q0 * v as q0v
+    // = (q0.hi << 64 + q0.lo) * (v.hi << 64 + v.lo)
+    // = (q0.hi * v.hi << 128) + (q0.hi * v.lo << 64) +
+    //   (q0.lo * v.hi <<  64) + q0.lo * v.lo)
+    // Each term is 128 bit
+    // High half of full product (upper 128 bits!) are dropped
+    u128_t q0v = {0, 0};
+    q0v.hi = q0.hi*v.lo + q0.lo*v.hi + libdivide_mullhi_u64(q0.lo, v.lo);
+    q0v.lo = q0.lo*v.lo;
+
+    // Compute u - q0v as u_q0v
+    // This is the remainder
+    u128_t u_q0v = u;
+    u_q0v.hi -= q0v.hi + (u.lo < q0v.lo); // second term is borrow
+    u_q0v.lo -= q0v.lo;
+
+    // Check if u_q0v >= v
+    // This checks if our remainder is larger than the divisor
+    if ((u_q0v.hi > v.hi) ||
+        (u_q0v.hi == v.hi && u_q0v.lo >= v.lo)) {
+        // Increment q0
+        q0.lo += 1;
+        q0.hi += (q0.lo == 0); // carry
+
+        // Subtract v from remainder
+        u_q0v.hi -= v.hi + (u_q0v.lo < v.lo);
+        u_q0v.lo -= v.lo;
+    }
+
+    *r_hi = u_q0v.hi;
+    *r_lo = u_q0v.lo;
+
+    LIBDIVIDE_ASSERT(q0.hi == 0);
+    return q0.lo;
+#endif
+}
+
+////////// UINT32
+
+static inline struct libdivide_u32_t libdivide_internal_u32_gen(uint32_t d, int branchfree) {
+    if (d == 0) {
+        LIBDIVIDE_ERROR("divider must be != 0");
+    }
+
+    struct libdivide_u32_t result;
+    uint32_t floor_log_2_d = 31 - libdivide_count_leading_zeros32(d);
+
+    // Power of 2
+    if ((d & (d - 1)) == 0) {
+        // We need to subtract 1 from the shift value in case of an unsigned
+        // branchfree divider because there is a hardcoded right shift by 1
+        // in its division algorithm. Because of this we also need to add back
+        // 1 in its recovery algorithm.
+        result.magic = 0;
+        result.more = (uint8_t)(floor_log_2_d - (branchfree != 0));
+    } else {
+        uint8_t more;
+        uint32_t rem, proposed_m;
+        proposed_m = libdivide_64_div_32_to_32(1U << floor_log_2_d, 0, d, &rem);
+
+        LIBDIVIDE_ASSERT(rem > 0 && rem < d);
+        const uint32_t e = d - rem;
+
+        // This power works if e < 2**floor_log_2_d.
+        if (!branchfree && (e < (1U << floor_log_2_d))) {
+            // This power works
+            more = floor_log_2_d;
+        } else {
+            // We have to use the general 33-bit algorithm.  We need to compute
+            // (2**power) / d. However, we already have (2**(power-1))/d and
+            // its remainder.  By doubling both, and then correcting the
+            // remainder, we can compute the larger division.
+            // don't care about overflow here - in fact, we expect it
+            proposed_m += proposed_m;
+            const uint32_t twice_rem = rem + rem;
+            if (twice_rem >= d || twice_rem < rem) proposed_m += 1;
+            more = floor_log_2_d | LIBDIVIDE_ADD_MARKER;
+        }
+        result.magic = 1 + proposed_m;
+        result.more = more;
+        // result.more's shift should in general be ceil_log_2_d. But if we
+        // used the smaller power, we subtract one from the shift because we're
+        // using the smaller power. If we're using the larger power, we
+        // subtract one from the shift because it's taken care of by the add
+        // indicator. So floor_log_2_d happens to be correct in both cases.
+    }
+    return result;
+}
+
+struct libdivide_u32_t libdivide_u32_gen(uint32_t d) {
+    return libdivide_internal_u32_gen(d, 0);
+}
+
+struct libdivide_u32_branchfree_t libdivide_u32_branchfree_gen(uint32_t d) {
+    if (d == 1) {
+        LIBDIVIDE_ERROR("branchfree divider must be != 1");
+    }
+    struct libdivide_u32_t tmp = libdivide_internal_u32_gen(d, 1);
+    struct libdivide_u32_branchfree_t ret = {tmp.magic, (uint8_t)(tmp.more & LIBDIVIDE_32_SHIFT_MASK)};
+    return ret;
+}
+
+uint32_t libdivide_u32_do(uint32_t numer, const struct libdivide_u32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return numer >> more;
+    }
+    else {
+        uint32_t q = libdivide_mullhi_u32(denom->magic, numer);
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            uint32_t t = ((numer - q) >> 1) + q;
+            return t >> (more & LIBDIVIDE_32_SHIFT_MASK);
+        }
+        else {
+            // All upper bits are 0,
+            // don't need to mask them off.
+            return q >> more;
+        }
+    }
+}
+
+uint32_t libdivide_u32_branchfree_do(uint32_t numer, const struct libdivide_u32_branchfree_t *denom) {
+    uint32_t q = libdivide_mullhi_u32(denom->magic, numer);
+    uint32_t t = ((numer - q) >> 1) + q;
+    return t >> denom->more;
+}
+
+uint32_t libdivide_u32_recover(const struct libdivide_u32_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+
+    if (!denom->magic) {
+        return 1U << shift;
+    } else if (!(more & LIBDIVIDE_ADD_MARKER)) {
+        // We compute q = n/d = n*m / 2^(32 + shift)
+        // Therefore we have d = 2^(32 + shift) / m
+        // We need to ceil it.
+        // We know d is not a power of 2, so m is not a power of 2,
+        // so we can just add 1 to the floor
+        uint32_t hi_dividend = 1U << shift;
+        uint32_t rem_ignored;
+        return 1 + libdivide_64_div_32_to_32(hi_dividend, 0, denom->magic, &rem_ignored);
+    } else {
+        // Here we wish to compute d = 2^(32+shift+1)/(m+2^32).
+        // Notice (m + 2^32) is a 33 bit number. Use 64 bit division for now
+        // Also note that shift may be as high as 31, so shift + 1 will
+        // overflow. So we have to compute it as 2^(32+shift)/(m+2^32), and
+        // then double the quotient and remainder.
+        uint64_t half_n = 1ULL << (32 + shift);
+        uint64_t d = (1ULL << 32) | denom->magic;
+        // Note that the quotient is guaranteed <= 32 bits, but the remainder
+        // may need 33!
+        uint32_t half_q = (uint32_t)(half_n / d);
+        uint64_t rem = half_n % d;
+        // We computed 2^(32+shift)/(m+2^32)
+        // Need to double it, and then add 1 to the quotient if doubling th
+        // remainder would increase the quotient.
+        // Note that rem<<1 cannot overflow, since rem < d and d is 33 bits
+        uint32_t full_q = half_q + half_q + ((rem<<1) >= d);
+
+        // We rounded down in gen (hence +1)
+        return full_q + 1;
+    }
+}
+
+uint32_t libdivide_u32_branchfree_recover(const struct libdivide_u32_branchfree_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+
+    if (!denom->magic) {
+        return 1U << (shift + 1);
+    } else {
+        // Here we wish to compute d = 2^(32+shift+1)/(m+2^32).
+        // Notice (m + 2^32) is a 33 bit number. Use 64 bit division for now
+        // Also note that shift may be as high as 31, so shift + 1 will
+        // overflow. So we have to compute it as 2^(32+shift)/(m+2^32), and
+        // then double the quotient and remainder.
+        uint64_t half_n = 1ULL << (32 + shift);
+        uint64_t d = (1ULL << 32) | denom->magic;
+        // Note that the quotient is guaranteed <= 32 bits, but the remainder
+        // may need 33!
+        uint32_t half_q = (uint32_t)(half_n / d);
+        uint64_t rem = half_n % d;
+        // We computed 2^(32+shift)/(m+2^32)
+        // Need to double it, and then add 1 to the quotient if doubling th
+        // remainder would increase the quotient.
+        // Note that rem<<1 cannot overflow, since rem < d and d is 33 bits
+        uint32_t full_q = half_q + half_q + ((rem<<1) >= d);
+
+        // We rounded down in gen (hence +1)
+        return full_q + 1;
+    }
+}
+
+/////////// UINT64
+
+static inline struct libdivide_u64_t libdivide_internal_u64_gen(uint64_t d, int branchfree) {
+    if (d == 0) {
+        LIBDIVIDE_ERROR("divider must be != 0");
+    }
+
+    struct libdivide_u64_t result;
+    uint32_t floor_log_2_d = 63 - libdivide_count_leading_zeros64(d);
+
+    // Power of 2
+    if ((d & (d - 1)) == 0) {
+        // We need to subtract 1 from the shift value in case of an unsigned
+        // branchfree divider because there is a hardcoded right shift by 1
+        // in its division algorithm. Because of this we also need to add back
+        // 1 in its recovery algorithm.
+        result.magic = 0;
+        result.more = (uint8_t)(floor_log_2_d - (branchfree != 0));
+    } else {
+        uint64_t proposed_m, rem;
+        uint8_t more;
+        // (1 << (64 + floor_log_2_d)) / d
+        proposed_m = libdivide_128_div_64_to_64(1ULL << floor_log_2_d, 0, d, &rem);
+
+        LIBDIVIDE_ASSERT(rem > 0 && rem < d);
+        const uint64_t e = d - rem;
+
+        // This power works if e < 2**floor_log_2_d.
+        if (!branchfree && e < (1ULL << floor_log_2_d)) {
+            // This power works
+            more = floor_log_2_d;
+        } else {
+            // We have to use the general 65-bit algorithm.  We need to compute
+            // (2**power) / d. However, we already have (2**(power-1))/d and
+            // its remainder. By doubling both, and then correcting the
+            // remainder, we can compute the larger division.
+            // don't care about overflow here - in fact, we expect it
+            proposed_m += proposed_m;
+            const uint64_t twice_rem = rem + rem;
+            if (twice_rem >= d || twice_rem < rem) proposed_m += 1;
+                more = floor_log_2_d | LIBDIVIDE_ADD_MARKER;
+        }
+        result.magic = 1 + proposed_m;
+        result.more = more;
+        // result.more's shift should in general be ceil_log_2_d. But if we
+        // used the smaller power, we subtract one from the shift because we're
+        // using the smaller power. If we're using the larger power, we
+        // subtract one from the shift because it's taken care of by the add
+        // indicator. So floor_log_2_d happens to be correct in both cases,
+        // which is why we do it outside of the if statement.
+    }
+    return result;
+}
+
+struct libdivide_u64_t libdivide_u64_gen(uint64_t d) {
+    return libdivide_internal_u64_gen(d, 0);
+}
+
+struct libdivide_u64_branchfree_t libdivide_u64_branchfree_gen(uint64_t d) {
+    if (d == 1) {
+        LIBDIVIDE_ERROR("branchfree divider must be != 1");
+    }
+    struct libdivide_u64_t tmp = libdivide_internal_u64_gen(d, 1);
+    struct libdivide_u64_branchfree_t ret = {tmp.magic, (uint8_t)(tmp.more & LIBDIVIDE_64_SHIFT_MASK)};
+    return ret;
+}
+
+uint64_t libdivide_u64_do(uint64_t numer, const struct libdivide_u64_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return numer >> more;
+    }
+    else {
+        uint64_t q = libdivide_mullhi_u64(denom->magic, numer);
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            uint64_t t = ((numer - q) >> 1) + q;
+            return t >> (more & LIBDIVIDE_64_SHIFT_MASK);
+        }
+        else {
+             // All upper bits are 0,
+             // don't need to mask them off.
+            return q >> more;
+        }
+    }
+}
+
+uint64_t libdivide_u64_branchfree_do(uint64_t numer, const struct libdivide_u64_branchfree_t *denom) {
+    uint64_t q = libdivide_mullhi_u64(denom->magic, numer);
+    uint64_t t = ((numer - q) >> 1) + q;
+    return t >> denom->more;
+}
+
+uint64_t libdivide_u64_recover(const struct libdivide_u64_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+
+    if (!denom->magic) {
+        return 1ULL << shift;
+    } else if (!(more & LIBDIVIDE_ADD_MARKER)) {
+        // We compute q = n/d = n*m / 2^(64 + shift)
+        // Therefore we have d = 2^(64 + shift) / m
+        // We need to ceil it.
+        // We know d is not a power of 2, so m is not a power of 2,
+        // so we can just add 1 to the floor
+        uint64_t hi_dividend = 1ULL << shift;
+        uint64_t rem_ignored;
+        return 1 + libdivide_128_div_64_to_64(hi_dividend, 0, denom->magic, &rem_ignored);
+    } else {
+        // Here we wish to compute d = 2^(64+shift+1)/(m+2^64).
+        // Notice (m + 2^64) is a 65 bit number. This gets hairy. See
+        // libdivide_u32_recover for more on what we do here.
+        // TODO: do something better than 128 bit math
+
+        // Full n is a (potentially) 129 bit value
+        // half_n is a 128 bit value
+        // Compute the hi half of half_n. Low half is 0.
+        uint64_t half_n_hi = 1ULL << shift, half_n_lo = 0;
+        // d is a 65 bit value. The high bit is always set to 1.
+        const uint64_t d_hi = 1, d_lo = denom->magic;
+        // Note that the quotient is guaranteed <= 64 bits,
+        // but the remainder may need 65!
+        uint64_t r_hi, r_lo;
+        uint64_t half_q = libdivide_128_div_128_to_64(half_n_hi, half_n_lo, d_hi, d_lo, &r_hi, &r_lo);
+        // We computed 2^(64+shift)/(m+2^64)
+        // Double the remainder ('dr') and check if that is larger than d
+        // Note that d is a 65 bit value, so r1 is small and so r1 + r1
+        // cannot overflow
+        uint64_t dr_lo = r_lo + r_lo;
+        uint64_t dr_hi = r_hi + r_hi + (dr_lo < r_lo); // last term is carry
+        int dr_exceeds_d = (dr_hi > d_hi) || (dr_hi == d_hi && dr_lo >= d_lo);
+        uint64_t full_q = half_q + half_q + (dr_exceeds_d ? 1 : 0);
+        return full_q + 1;
+    }
+}
+
+uint64_t libdivide_u64_branchfree_recover(const struct libdivide_u64_branchfree_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+
+    if (!denom->magic) {
+        return 1ULL << (shift + 1);
+    } else {
+        // Here we wish to compute d = 2^(64+shift+1)/(m+2^64).
+        // Notice (m + 2^64) is a 65 bit number. This gets hairy. See
+        // libdivide_u32_recover for more on what we do here.
+        // TODO: do something better than 128 bit math
+
+        // Full n is a (potentially) 129 bit value
+        // half_n is a 128 bit value
+        // Compute the hi half of half_n. Low half is 0.
+        uint64_t half_n_hi = 1ULL << shift, half_n_lo = 0;
+        // d is a 65 bit value. The high bit is always set to 1.
+        const uint64_t d_hi = 1, d_lo = denom->magic;
+        // Note that the quotient is guaranteed <= 64 bits,
+        // but the remainder may need 65!
+        uint64_t r_hi, r_lo;
+        uint64_t half_q = libdivide_128_div_128_to_64(half_n_hi, half_n_lo, d_hi, d_lo, &r_hi, &r_lo);
+        // We computed 2^(64+shift)/(m+2^64)
+        // Double the remainder ('dr') and check if that is larger than d
+        // Note that d is a 65 bit value, so r1 is small and so r1 + r1
+        // cannot overflow
+        uint64_t dr_lo = r_lo + r_lo;
+        uint64_t dr_hi = r_hi + r_hi + (dr_lo < r_lo); // last term is carry
+        int dr_exceeds_d = (dr_hi > d_hi) || (dr_hi == d_hi && dr_lo >= d_lo);
+        uint64_t full_q = half_q + half_q + (dr_exceeds_d ? 1 : 0);
+        return full_q + 1;
+    }
+}
+
+/////////// SINT32
+
+static inline struct libdivide_s32_t libdivide_internal_s32_gen(int32_t d, int branchfree) {
+    if (d == 0) {
+        LIBDIVIDE_ERROR("divider must be != 0");
+    }
+
+    struct libdivide_s32_t result;
+
+    // If d is a power of 2, or negative a power of 2, we have to use a shift.
+    // This is especially important because the magic algorithm fails for -1.
+    // To check if d is a power of 2 or its inverse, it suffices to check
+    // whether its absolute value has exactly one bit set. This works even for
+    // INT_MIN, because abs(INT_MIN) == INT_MIN, and INT_MIN has one bit set
+    // and is a power of 2.
+    uint32_t ud = (uint32_t)d;
+    uint32_t absD = (d < 0) ? -ud : ud;
+    uint32_t floor_log_2_d = 31 - libdivide_count_leading_zeros32(absD);
+    // check if exactly one bit is set,
+    // don't care if absD is 0 since that's divide by zero
+    if ((absD & (absD - 1)) == 0) {
+        // Branchfree and normal paths are exactly the same
+        result.magic = 0;
+        result.more = floor_log_2_d | (d < 0 ? LIBDIVIDE_NEGATIVE_DIVISOR : 0);
+    } else {
+        LIBDIVIDE_ASSERT(floor_log_2_d >= 1);
+
+        uint8_t more;
+        // the dividend here is 2**(floor_log_2_d + 31), so the low 32 bit word
+        // is 0 and the high word is floor_log_2_d - 1
+        uint32_t rem, proposed_m;
+        proposed_m = libdivide_64_div_32_to_32(1U << (floor_log_2_d - 1), 0, absD, &rem);
+        const uint32_t e = absD - rem;
+
+        // We are going to start with a power of floor_log_2_d - 1.
+        // This works if works if e < 2**floor_log_2_d.
+        if (!branchfree && e < (1U << floor_log_2_d)) {
+            // This power works
+            more = floor_log_2_d - 1;
+        } else {
+            // We need to go one higher. This should not make proposed_m
+            // overflow, but it will make it negative when interpreted as an
+            // int32_t.
+            proposed_m += proposed_m;
+            const uint32_t twice_rem = rem + rem;
+            if (twice_rem >= absD || twice_rem < rem) proposed_m += 1;
+            more = floor_log_2_d | LIBDIVIDE_ADD_MARKER;
+        }
+
+        proposed_m += 1;
+        int32_t magic = (int32_t)proposed_m;
+
+        // Mark if we are negative. Note we only negate the magic number in the
+        // branchfull case.
+        if (d < 0) {
+            more |= LIBDIVIDE_NEGATIVE_DIVISOR;
+            if (!branchfree) {
+                magic = -magic;
+            }
+        }
+
+        result.more = more;
+        result.magic = magic;
+    }
+    return result;
+}
+
+struct libdivide_s32_t libdivide_s32_gen(int32_t d) {
+    return libdivide_internal_s32_gen(d, 0);
+}
+
+struct libdivide_s32_branchfree_t libdivide_s32_branchfree_gen(int32_t d) {
+    struct libdivide_s32_t tmp = libdivide_internal_s32_gen(d, 1);
+    struct libdivide_s32_branchfree_t result = {tmp.magic, tmp.more};
+    return result;
+}
+
+int32_t libdivide_s32_do(int32_t numer, const struct libdivide_s32_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+
+    if (!denom->magic) {
+        uint32_t sign = (int8_t)more >> 7;
+        uint32_t mask = (1U << shift) - 1;
+        uint32_t uq = numer + ((numer >> 31) & mask);
+        int32_t q = (int32_t)uq;
+        q >>= shift;
+        q = (q ^ sign) - sign;
+        return q;
+    } else {
+        uint32_t uq = (uint32_t)libdivide_mullhi_s32(denom->magic, numer);
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // must be arithmetic shift and then sign extend
+            int32_t sign = (int8_t)more >> 7;
+            // q += (more < 0 ? -numer : numer)
+            // cast required to avoid UB
+            uq += ((uint32_t)numer ^ sign) - sign;
+        }
+        int32_t q = (int32_t)uq;
+        q >>= shift;
+        q += (q < 0);
+        return q;
+    }
+}
+
+int32_t libdivide_s32_branchfree_do(int32_t numer, const struct libdivide_s32_branchfree_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+    // must be arithmetic shift and then sign extend
+    int32_t sign = (int8_t)more >> 7;
+    int32_t magic = denom->magic;
+    int32_t q = libdivide_mullhi_s32(magic, numer);
+    q += numer;
+
+    // If q is non-negative, we have nothing to do
+    // If q is negative, we want to add either (2**shift)-1 if d is a power of
+    // 2, or (2**shift) if it is not a power of 2
+    uint32_t is_power_of_2 = (magic == 0);
+    uint32_t q_sign = (uint32_t)(q >> 31);
+    q += q_sign & ((1U << shift) - is_power_of_2);
+
+    // Now arithmetic right shift
+    q >>= shift;
+    // Negate if needed
+    q = (q ^ sign) - sign;
+
+    return q;
+}
+
+int32_t libdivide_s32_recover(const struct libdivide_s32_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+    if (!denom->magic) {
+        uint32_t absD = 1U << shift;
+        if (more & LIBDIVIDE_NEGATIVE_DIVISOR) {
+            absD = -absD;
+        }
+        return (int32_t)absD;
+    } else {
+        // Unsigned math is much easier
+        // We negate the magic number only in the branchfull case, and we don't
+        // know which case we're in. However we have enough information to
+        // determine the correct sign of the magic number. The divisor was
+        // negative if LIBDIVIDE_NEGATIVE_DIVISOR is set. If ADD_MARKER is set,
+        // the magic number's sign is opposite that of the divisor.
+        // We want to compute the positive magic number.
+        int negative_divisor = (more & LIBDIVIDE_NEGATIVE_DIVISOR);
+        int magic_was_negated = (more & LIBDIVIDE_ADD_MARKER)
+            ? denom->magic > 0 : denom->magic < 0;
+
+        // Handle the power of 2 case (including branchfree)
+        if (denom->magic == 0) {
+            int32_t result = 1U << shift;
+            return negative_divisor ? -result : result;
+        }
+
+        uint32_t d = (uint32_t)(magic_was_negated ? -denom->magic : denom->magic);
+        uint64_t n = 1ULL << (32 + shift); // this shift cannot exceed 30
+        uint32_t q = (uint32_t)(n / d);
+        int32_t result = (int32_t)q;
+        result += 1;
+        return negative_divisor ? -result : result;
+    }
+}
+
+int32_t libdivide_s32_branchfree_recover(const struct libdivide_s32_branchfree_t *denom) {
+    return libdivide_s32_recover((const struct libdivide_s32_t *)denom);
+}
+
+///////////// SINT64
+
+static inline struct libdivide_s64_t libdivide_internal_s64_gen(int64_t d, int branchfree) {
+    if (d == 0) {
+        LIBDIVIDE_ERROR("divider must be != 0");
+    }
+
+    struct libdivide_s64_t result;
+
+    // If d is a power of 2, or negative a power of 2, we have to use a shift.
+    // This is especially important because the magic algorithm fails for -1.
+    // To check if d is a power of 2 or its inverse, it suffices to check
+    // whether its absolute value has exactly one bit set.  This works even for
+    // INT_MIN, because abs(INT_MIN) == INT_MIN, and INT_MIN has one bit set
+    // and is a power of 2.
+    uint64_t ud = (uint64_t)d;
+    uint64_t absD = (d < 0) ? -ud : ud;
+    uint32_t floor_log_2_d = 63 - libdivide_count_leading_zeros64(absD);
+    // check if exactly one bit is set,
+    // don't care if absD is 0 since that's divide by zero
+    if ((absD & (absD - 1)) == 0) {
+        // Branchfree and non-branchfree cases are the same
+        result.magic = 0;
+        result.more = floor_log_2_d | (d < 0 ? LIBDIVIDE_NEGATIVE_DIVISOR : 0);
+    } else {
+        // the dividend here is 2**(floor_log_2_d + 63), so the low 64 bit word
+        // is 0 and the high word is floor_log_2_d - 1
+        uint8_t more;
+        uint64_t rem, proposed_m;
+        proposed_m = libdivide_128_div_64_to_64(1ULL << (floor_log_2_d - 1), 0, absD, &rem);
+        const uint64_t e = absD - rem;
+
+        // We are going to start with a power of floor_log_2_d - 1.
+        // This works if works if e < 2**floor_log_2_d.
+        if (!branchfree && e < (1ULL << floor_log_2_d)) {
+            // This power works
+            more = floor_log_2_d - 1;
+        } else {
+            // We need to go one higher. This should not make proposed_m
+            // overflow, but it will make it negative when interpreted as an
+            // int32_t.
+            proposed_m += proposed_m;
+            const uint64_t twice_rem = rem + rem;
+            if (twice_rem >= absD || twice_rem < rem) proposed_m += 1;
+            // note that we only set the LIBDIVIDE_NEGATIVE_DIVISOR bit if we
+            // also set ADD_MARKER this is an annoying optimization that
+            // enables algorithm #4 to avoid the mask. However we always set it
+            // in the branchfree case
+            more = floor_log_2_d | LIBDIVIDE_ADD_MARKER;
+        }
+        proposed_m += 1;
+        int64_t magic = (int64_t)proposed_m;
+
+        // Mark if we are negative
+        if (d < 0) {
+            more |= LIBDIVIDE_NEGATIVE_DIVISOR;
+            if (!branchfree) {
+                magic = -magic;
+            }
+        }
+
+        result.more = more;
+        result.magic = magic;
+    }
+    return result;
+}
+
+struct libdivide_s64_t libdivide_s64_gen(int64_t d) {
+    return libdivide_internal_s64_gen(d, 0);
+}
+
+struct libdivide_s64_branchfree_t libdivide_s64_branchfree_gen(int64_t d) {
+    struct libdivide_s64_t tmp = libdivide_internal_s64_gen(d, 1);
+    struct libdivide_s64_branchfree_t ret = {tmp.magic, tmp.more};
+    return ret;
+}
+
+int64_t libdivide_s64_do(int64_t numer, const struct libdivide_s64_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+
+    if (!denom->magic) { // shift path
+        uint64_t mask = (1ULL << shift) - 1;
+        uint64_t uq = numer + ((numer >> 63) & mask);
+        int64_t q = (int64_t)uq;
+        q >>= shift;
+        // must be arithmetic shift and then sign-extend
+        int64_t sign = (int8_t)more >> 7;
+        q = (q ^ sign) - sign;
+        return q;
+    } else {
+        uint64_t uq = (uint64_t)libdivide_mullhi_s64(denom->magic, numer);
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // must be arithmetic shift and then sign extend
+            int64_t sign = (int8_t)more >> 7;
+            // q += (more < 0 ? -numer : numer)
+            // cast required to avoid UB
+            uq += ((uint64_t)numer ^ sign) - sign;
+        }
+        int64_t q = (int64_t)uq;
+        q >>= shift;
+        q += (q < 0);
+        return q;
+    }
+}
+
+int64_t libdivide_s64_branchfree_do(int64_t numer, const struct libdivide_s64_branchfree_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+    // must be arithmetic shift and then sign extend
+    int64_t sign = (int8_t)more >> 7;
+    int64_t magic = denom->magic;
+    int64_t q = libdivide_mullhi_s64(magic, numer);
+    q += numer;
+
+    // If q is non-negative, we have nothing to do.
+    // If q is negative, we want to add either (2**shift)-1 if d is a power of
+    // 2, or (2**shift) if it is not a power of 2.
+    uint64_t is_power_of_2 = (magic == 0);
+    uint64_t q_sign = (uint64_t)(q >> 63);
+    q += q_sign & ((1ULL << shift) - is_power_of_2);
+
+    // Arithmetic right shift
+    q >>= shift;
+    // Negate if needed
+    q = (q ^ sign) - sign;
+
+    return q;
+}
+
+int64_t libdivide_s64_recover(const struct libdivide_s64_t *denom) {
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+    if (denom->magic == 0) { // shift path
+        uint64_t absD = 1ULL << shift;
+        if (more & LIBDIVIDE_NEGATIVE_DIVISOR) {
+            absD = -absD;
+        }
+        return (int64_t)absD;
+    } else {
+        // Unsigned math is much easier
+        int negative_divisor = (more & LIBDIVIDE_NEGATIVE_DIVISOR);
+        int magic_was_negated = (more & LIBDIVIDE_ADD_MARKER)
+            ? denom->magic > 0 : denom->magic < 0;
+
+        uint64_t d = (uint64_t)(magic_was_negated ? -denom->magic : denom->magic);
+        uint64_t n_hi = 1ULL << shift, n_lo = 0;
+        uint64_t rem_ignored;
+        uint64_t q = libdivide_128_div_64_to_64(n_hi, n_lo, d, &rem_ignored);
+        int64_t result = (int64_t)(q + 1);
+        if (negative_divisor) {
+            result = -result;
+        }
+        return result;
+    }
+}
+
+int64_t libdivide_s64_branchfree_recover(const struct libdivide_s64_branchfree_t *denom) {
+    return libdivide_s64_recover((const struct libdivide_s64_t *)denom);
+}
+
+#if defined(LIBDIVIDE_AVX512)
+
+static inline __m512i libdivide_u32_do_vector(__m512i numers, const struct libdivide_u32_t *denom);
+static inline __m512i libdivide_s32_do_vector(__m512i numers, const struct libdivide_s32_t *denom);
+static inline __m512i libdivide_u64_do_vector(__m512i numers, const struct libdivide_u64_t *denom);
+static inline __m512i libdivide_s64_do_vector(__m512i numers, const struct libdivide_s64_t *denom);
+
+static inline __m512i libdivide_u32_branchfree_do_vector(__m512i numers, const struct libdivide_u32_branchfree_t *denom);
+static inline __m512i libdivide_s32_branchfree_do_vector(__m512i numers, const struct libdivide_s32_branchfree_t *denom);
+static inline __m512i libdivide_u64_branchfree_do_vector(__m512i numers, const struct libdivide_u64_branchfree_t *denom);
+static inline __m512i libdivide_s64_branchfree_do_vector(__m512i numers, const struct libdivide_s64_branchfree_t *denom);
+
+//////// Internal Utility Functions
+
+static inline __m512i libdivide_s64_signbits(__m512i v) {;
+    return _mm512_srai_epi64(v, 63);
+}
+
+static inline __m512i libdivide_s64_shift_right_vector(__m512i v, int amt) {
+    return _mm512_srai_epi64(v, amt);
+}
+
+// Here, b is assumed to contain one 32-bit value repeated.
+static inline __m512i libdivide_mullhi_u32_vector(__m512i a, __m512i b) {
+    __m512i hi_product_0Z2Z = _mm512_srli_epi64(_mm512_mul_epu32(a, b), 32);
+    __m512i a1X3X = _mm512_srli_epi64(a, 32);
+    __m512i mask = _mm512_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0);
+    __m512i hi_product_Z1Z3 = _mm512_and_si512(_mm512_mul_epu32(a1X3X, b), mask);
+    return _mm512_or_si512(hi_product_0Z2Z, hi_product_Z1Z3);
+}
+
+// b is one 32-bit value repeated.
+static inline __m512i libdivide_mullhi_s32_vector(__m512i a, __m512i b) {
+    __m512i hi_product_0Z2Z = _mm512_srli_epi64(_mm512_mul_epi32(a, b), 32);
+    __m512i a1X3X = _mm512_srli_epi64(a, 32);
+    __m512i mask = _mm512_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0);
+    __m512i hi_product_Z1Z3 = _mm512_and_si512(_mm512_mul_epi32(a1X3X, b), mask);
+    return _mm512_or_si512(hi_product_0Z2Z, hi_product_Z1Z3);
+}
+
+// Here, y is assumed to contain one 64-bit value repeated.
+// https://stackoverflow.com/a/28827013
+static inline __m512i libdivide_mullhi_u64_vector(__m512i x, __m512i y) {
+    __m512i lomask = _mm512_set1_epi64(0xffffffff);
+    __m512i xh = _mm512_shuffle_epi32(x, (_MM_PERM_ENUM) 0xB1);
+    __m512i yh = _mm512_shuffle_epi32(y, (_MM_PERM_ENUM) 0xB1);
+    __m512i w0 = _mm512_mul_epu32(x, y);
+    __m512i w1 = _mm512_mul_epu32(x, yh);
+    __m512i w2 = _mm512_mul_epu32(xh, y);
+    __m512i w3 = _mm512_mul_epu32(xh, yh);
+    __m512i w0h = _mm512_srli_epi64(w0, 32);
+    __m512i s1 = _mm512_add_epi64(w1, w0h);
+    __m512i s1l = _mm512_and_si512(s1, lomask);
+    __m512i s1h = _mm512_srli_epi64(s1, 32);
+    __m512i s2 = _mm512_add_epi64(w2, s1l);
+    __m512i s2h = _mm512_srli_epi64(s2, 32);
+    __m512i hi = _mm512_add_epi64(w3, s1h);
+            hi = _mm512_add_epi64(hi, s2h);
+
+    return hi;
+}
+
+// y is one 64-bit value repeated.
+static inline __m512i libdivide_mullhi_s64_vector(__m512i x, __m512i y) {
+    __m512i p = libdivide_mullhi_u64_vector(x, y);
+    __m512i t1 = _mm512_and_si512(libdivide_s64_signbits(x), y);
+    __m512i t2 = _mm512_and_si512(libdivide_s64_signbits(y), x);
+    p = _mm512_sub_epi64(p, t1);
+    p = _mm512_sub_epi64(p, t2);
+    return p;
+}
+
+////////// UINT32
+
+__m512i libdivide_u32_do_vector(__m512i numers, const struct libdivide_u32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return _mm512_srli_epi32(numers, more);
+    }
+    else {
+        __m512i q = libdivide_mullhi_u32_vector(numers, _mm512_set1_epi32(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // uint32_t t = ((numer - q) >> 1) + q;
+            // return t >> denom->shift;
+            uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+            __m512i t = _mm512_add_epi32(_mm512_srli_epi32(_mm512_sub_epi32(numers, q), 1), q);
+            return _mm512_srli_epi32(t, shift);
+        }
+        else {
+            return _mm512_srli_epi32(q, more);
+        }
+    }
+}
+
+__m512i libdivide_u32_branchfree_do_vector(__m512i numers, const struct libdivide_u32_branchfree_t *denom) {
+    __m512i q = libdivide_mullhi_u32_vector(numers, _mm512_set1_epi32(denom->magic));
+    __m512i t = _mm512_add_epi32(_mm512_srli_epi32(_mm512_sub_epi32(numers, q), 1), q);
+    return _mm512_srli_epi32(t, denom->more);
+}
+
+////////// UINT64
+
+__m512i libdivide_u64_do_vector(__m512i numers, const struct libdivide_u64_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return _mm512_srli_epi64(numers, more);
+    }
+    else {
+        __m512i q = libdivide_mullhi_u64_vector(numers, _mm512_set1_epi64(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // uint32_t t = ((numer - q) >> 1) + q;
+            // return t >> denom->shift;
+            uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+            __m512i t = _mm512_add_epi64(_mm512_srli_epi64(_mm512_sub_epi64(numers, q), 1), q);
+            return _mm512_srli_epi64(t, shift);
+        }
+        else {
+            return _mm512_srli_epi64(q, more);
+        }
+    }
+}
+
+__m512i libdivide_u64_branchfree_do_vector(__m512i numers, const struct libdivide_u64_branchfree_t *denom) {
+    __m512i q = libdivide_mullhi_u64_vector(numers, _mm512_set1_epi64(denom->magic));
+    __m512i t = _mm512_add_epi64(_mm512_srli_epi64(_mm512_sub_epi64(numers, q), 1), q);
+    return _mm512_srli_epi64(t, denom->more);
+}
+
+////////// SINT32
+
+__m512i libdivide_s32_do_vector(__m512i numers, const struct libdivide_s32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+        uint32_t mask = (1U << shift) - 1;
+        __m512i roundToZeroTweak = _mm512_set1_epi32(mask);
+        // q = numer + ((numer >> 31) & roundToZeroTweak);
+        __m512i q = _mm512_add_epi32(numers, _mm512_and_si512(_mm512_srai_epi32(numers, 31), roundToZeroTweak));
+        q = _mm512_srai_epi32(q, shift);
+        __m512i sign = _mm512_set1_epi32((int8_t)more >> 7);
+        // q = (q ^ sign) - sign;
+        q = _mm512_sub_epi32(_mm512_xor_si512(q, sign), sign);
+        return q;
+    }
+    else {
+        __m512i q = libdivide_mullhi_s32_vector(numers, _mm512_set1_epi32(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+             // must be arithmetic shift
+            __m512i sign = _mm512_set1_epi32((int8_t)more >> 7);
+             // q += ((numer ^ sign) - sign);
+            q = _mm512_add_epi32(q, _mm512_sub_epi32(_mm512_xor_si512(numers, sign), sign));
+        }
+        // q >>= shift
+        q = _mm512_srai_epi32(q, more & LIBDIVIDE_32_SHIFT_MASK);
+        q = _mm512_add_epi32(q, _mm512_srli_epi32(q, 31)); // q += (q < 0)
+        return q;
+    }
+}
+
+__m512i libdivide_s32_branchfree_do_vector(__m512i numers, const struct libdivide_s32_branchfree_t *denom) {
+    int32_t magic = denom->magic;
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+     // must be arithmetic shift
+    __m512i sign = _mm512_set1_epi32((int8_t)more >> 7);
+    __m512i q = libdivide_mullhi_s32_vector(numers, _mm512_set1_epi32(magic));
+    q = _mm512_add_epi32(q, numers); // q += numers
+
+    // If q is non-negative, we have nothing to do
+    // If q is negative, we want to add either (2**shift)-1 if d is
+    // a power of 2, or (2**shift) if it is not a power of 2
+    uint32_t is_power_of_2 = (magic == 0);
+    __m512i q_sign = _mm512_srai_epi32(q, 31); // q_sign = q >> 31
+    __m512i mask = _mm512_set1_epi32((1U << shift) - is_power_of_2);
+    q = _mm512_add_epi32(q, _mm512_and_si512(q_sign, mask)); // q = q + (q_sign & mask)
+    q = _mm512_srai_epi32(q, shift); // q >>= shift
+    q = _mm512_sub_epi32(_mm512_xor_si512(q, sign), sign); // q = (q ^ sign) - sign
+    return q;
+}
+
+////////// SINT64
+
+__m512i libdivide_s64_do_vector(__m512i numers, const struct libdivide_s64_t *denom) {
+    uint8_t more = denom->more;
+    int64_t magic = denom->magic;
+    if (magic == 0) { // shift path
+        uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+        uint64_t mask = (1ULL << shift) - 1;
+        __m512i roundToZeroTweak = _mm512_set1_epi64(mask);
+        // q = numer + ((numer >> 63) & roundToZeroTweak);
+        __m512i q = _mm512_add_epi64(numers, _mm512_and_si512(libdivide_s64_signbits(numers), roundToZeroTweak));
+        q = libdivide_s64_shift_right_vector(q, shift);
+        __m512i sign = _mm512_set1_epi32((int8_t)more >> 7);
+         // q = (q ^ sign) - sign;
+        q = _mm512_sub_epi64(_mm512_xor_si512(q, sign), sign);
+        return q;
+    }
+    else {
+        __m512i q = libdivide_mullhi_s64_vector(numers, _mm512_set1_epi64(magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // must be arithmetic shift
+            __m512i sign = _mm512_set1_epi32((int8_t)more >> 7);
+            // q += ((numer ^ sign) - sign);
+            q = _mm512_add_epi64(q, _mm512_sub_epi64(_mm512_xor_si512(numers, sign), sign));
+        }
+        // q >>= denom->mult_path.shift
+        q = libdivide_s64_shift_right_vector(q, more & LIBDIVIDE_64_SHIFT_MASK);
+        q = _mm512_add_epi64(q, _mm512_srli_epi64(q, 63)); // q += (q < 0)
+        return q;
+    }
+}
+
+__m512i libdivide_s64_branchfree_do_vector(__m512i numers, const struct libdivide_s64_branchfree_t *denom) {
+    int64_t magic = denom->magic;
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+    // must be arithmetic shift
+    __m512i sign = _mm512_set1_epi32((int8_t)more >> 7);
+
+     // libdivide_mullhi_s64(numers, magic);
+    __m512i q = libdivide_mullhi_s64_vector(numers, _mm512_set1_epi64(magic));
+    q = _mm512_add_epi64(q, numers); // q += numers
+
+    // If q is non-negative, we have nothing to do.
+    // If q is negative, we want to add either (2**shift)-1 if d is
+    // a power of 2, or (2**shift) if it is not a power of 2.
+    uint32_t is_power_of_2 = (magic == 0);
+    __m512i q_sign = libdivide_s64_signbits(q); // q_sign = q >> 63
+    __m512i mask = _mm512_set1_epi64((1ULL << shift) - is_power_of_2);
+    q = _mm512_add_epi64(q, _mm512_and_si512(q_sign, mask)); // q = q + (q_sign & mask)
+    q = libdivide_s64_shift_right_vector(q, shift); // q >>= shift
+    q = _mm512_sub_epi64(_mm512_xor_si512(q, sign), sign); // q = (q ^ sign) - sign
+    return q;
+}
+
+#elif defined(LIBDIVIDE_AVX2)
+
+static inline __m256i libdivide_u32_do_vector(__m256i numers, const struct libdivide_u32_t *denom);
+static inline __m256i libdivide_s32_do_vector(__m256i numers, const struct libdivide_s32_t *denom);
+static inline __m256i libdivide_u64_do_vector(__m256i numers, const struct libdivide_u64_t *denom);
+static inline __m256i libdivide_s64_do_vector(__m256i numers, const struct libdivide_s64_t *denom);
+
+static inline __m256i libdivide_u32_branchfree_do_vector(__m256i numers, const struct libdivide_u32_branchfree_t *denom);
+static inline __m256i libdivide_s32_branchfree_do_vector(__m256i numers, const struct libdivide_s32_branchfree_t *denom);
+static inline __m256i libdivide_u64_branchfree_do_vector(__m256i numers, const struct libdivide_u64_branchfree_t *denom);
+static inline __m256i libdivide_s64_branchfree_do_vector(__m256i numers, const struct libdivide_s64_branchfree_t *denom);
+
+//////// Internal Utility Functions
+
+// Implementation of _mm256_srai_epi64(v, 63) (from AVX512).
+static inline __m256i libdivide_s64_signbits(__m256i v) {
+    __m256i hiBitsDuped = _mm256_shuffle_epi32(v, _MM_SHUFFLE(3, 3, 1, 1));
+    __m256i signBits = _mm256_srai_epi32(hiBitsDuped, 31);
+    return signBits;
+}
+
+// Implementation of _mm256_srai_epi64 (from AVX512).
+static inline __m256i libdivide_s64_shift_right_vector(__m256i v, int amt) {
+    const int b = 64 - amt;
+    __m256i m = _mm256_set1_epi64x(1ULL << (b - 1));
+    __m256i x = _mm256_srli_epi64(v, amt);
+    __m256i result = _mm256_sub_epi64(_mm256_xor_si256(x, m), m);
+    return result;
+}
+
+// Here, b is assumed to contain one 32-bit value repeated.
+static inline __m256i libdivide_mullhi_u32_vector(__m256i a, __m256i b) {
+    __m256i hi_product_0Z2Z = _mm256_srli_epi64(_mm256_mul_epu32(a, b), 32);
+    __m256i a1X3X = _mm256_srli_epi64(a, 32);
+    __m256i mask = _mm256_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0);
+    __m256i hi_product_Z1Z3 = _mm256_and_si256(_mm256_mul_epu32(a1X3X, b), mask);
+    return _mm256_or_si256(hi_product_0Z2Z, hi_product_Z1Z3);
+}
+
+// b is one 32-bit value repeated.
+static inline __m256i libdivide_mullhi_s32_vector(__m256i a, __m256i b) {
+    __m256i hi_product_0Z2Z = _mm256_srli_epi64(_mm256_mul_epi32(a, b), 32);
+    __m256i a1X3X = _mm256_srli_epi64(a, 32);
+    __m256i mask = _mm256_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0);
+    __m256i hi_product_Z1Z3 = _mm256_and_si256(_mm256_mul_epi32(a1X3X, b), mask);
+    return _mm256_or_si256(hi_product_0Z2Z, hi_product_Z1Z3);
+}
+
+// Here, y is assumed to contain one 64-bit value repeated.
+// https://stackoverflow.com/a/28827013
+static inline __m256i libdivide_mullhi_u64_vector(__m256i x, __m256i y) {
+    __m256i lomask = _mm256_set1_epi64x(0xffffffff);
+    __m256i xh = _mm256_shuffle_epi32(x, 0xB1);        // x0l, x0h, x1l, x1h
+    __m256i yh = _mm256_shuffle_epi32(y, 0xB1);        // y0l, y0h, y1l, y1h
+    __m256i w0 = _mm256_mul_epu32(x, y);               // x0l*y0l, x1l*y1l
+    __m256i w1 = _mm256_mul_epu32(x, yh);              // x0l*y0h, x1l*y1h
+    __m256i w2 = _mm256_mul_epu32(xh, y);              // x0h*y0l, x1h*y0l
+    __m256i w3 = _mm256_mul_epu32(xh, yh);             // x0h*y0h, x1h*y1h
+    __m256i w0h = _mm256_srli_epi64(w0, 32);
+    __m256i s1 = _mm256_add_epi64(w1, w0h);
+    __m256i s1l = _mm256_and_si256(s1, lomask);
+    __m256i s1h = _mm256_srli_epi64(s1, 32);
+    __m256i s2 = _mm256_add_epi64(w2, s1l);
+    __m256i s2h = _mm256_srli_epi64(s2, 32);
+    __m256i hi = _mm256_add_epi64(w3, s1h);
+            hi = _mm256_add_epi64(hi, s2h);
+
+    return hi;
+}
+
+// y is one 64-bit value repeated.
+static inline __m256i libdivide_mullhi_s64_vector(__m256i x, __m256i y) {
+    __m256i p = libdivide_mullhi_u64_vector(x, y);
+    __m256i t1 = _mm256_and_si256(libdivide_s64_signbits(x), y);
+    __m256i t2 = _mm256_and_si256(libdivide_s64_signbits(y), x);
+    p = _mm256_sub_epi64(p, t1);
+    p = _mm256_sub_epi64(p, t2);
+    return p;
+}
+
+////////// UINT32
+
+__m256i libdivide_u32_do_vector(__m256i numers, const struct libdivide_u32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return _mm256_srli_epi32(numers, more);
+    }
+    else {
+        __m256i q = libdivide_mullhi_u32_vector(numers, _mm256_set1_epi32(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // uint32_t t = ((numer - q) >> 1) + q;
+            // return t >> denom->shift;
+            uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+            __m256i t = _mm256_add_epi32(_mm256_srli_epi32(_mm256_sub_epi32(numers, q), 1), q);
+            return _mm256_srli_epi32(t, shift);
+        }
+        else {
+            return _mm256_srli_epi32(q, more);
+        }
+    }
+}
+
+__m256i libdivide_u32_branchfree_do_vector(__m256i numers, const struct libdivide_u32_branchfree_t *denom) {
+    __m256i q = libdivide_mullhi_u32_vector(numers, _mm256_set1_epi32(denom->magic));
+    __m256i t = _mm256_add_epi32(_mm256_srli_epi32(_mm256_sub_epi32(numers, q), 1), q);
+    return _mm256_srli_epi32(t, denom->more);
+}
+
+////////// UINT64
+
+__m256i libdivide_u64_do_vector(__m256i numers, const struct libdivide_u64_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return _mm256_srli_epi64(numers, more);
+    }
+    else {
+        __m256i q = libdivide_mullhi_u64_vector(numers, _mm256_set1_epi64x(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // uint32_t t = ((numer - q) >> 1) + q;
+            // return t >> denom->shift;
+            uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+            __m256i t = _mm256_add_epi64(_mm256_srli_epi64(_mm256_sub_epi64(numers, q), 1), q);
+            return _mm256_srli_epi64(t, shift);
+        }
+        else {
+            return _mm256_srli_epi64(q, more);
+        }
+    }
+}
+
+__m256i libdivide_u64_branchfree_do_vector(__m256i numers, const struct libdivide_u64_branchfree_t *denom) {
+    __m256i q = libdivide_mullhi_u64_vector(numers, _mm256_set1_epi64x(denom->magic));
+    __m256i t = _mm256_add_epi64(_mm256_srli_epi64(_mm256_sub_epi64(numers, q), 1), q);
+    return _mm256_srli_epi64(t, denom->more);
+}
+
+////////// SINT32
+
+__m256i libdivide_s32_do_vector(__m256i numers, const struct libdivide_s32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+        uint32_t mask = (1U << shift) - 1;
+        __m256i roundToZeroTweak = _mm256_set1_epi32(mask);
+        // q = numer + ((numer >> 31) & roundToZeroTweak);
+        __m256i q = _mm256_add_epi32(numers, _mm256_and_si256(_mm256_srai_epi32(numers, 31), roundToZeroTweak));
+        q = _mm256_srai_epi32(q, shift);
+        __m256i sign = _mm256_set1_epi32((int8_t)more >> 7);
+        // q = (q ^ sign) - sign;
+        q = _mm256_sub_epi32(_mm256_xor_si256(q, sign), sign);
+        return q;
+    }
+    else {
+        __m256i q = libdivide_mullhi_s32_vector(numers, _mm256_set1_epi32(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+             // must be arithmetic shift
+            __m256i sign = _mm256_set1_epi32((int8_t)more >> 7);
+             // q += ((numer ^ sign) - sign);
+            q = _mm256_add_epi32(q, _mm256_sub_epi32(_mm256_xor_si256(numers, sign), sign));
+        }
+        // q >>= shift
+        q = _mm256_srai_epi32(q, more & LIBDIVIDE_32_SHIFT_MASK);
+        q = _mm256_add_epi32(q, _mm256_srli_epi32(q, 31)); // q += (q < 0)
+        return q;
+    }
+}
+
+__m256i libdivide_s32_branchfree_do_vector(__m256i numers, const struct libdivide_s32_branchfree_t *denom) {
+    int32_t magic = denom->magic;
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+     // must be arithmetic shift
+    __m256i sign = _mm256_set1_epi32((int8_t)more >> 7);
+    __m256i q = libdivide_mullhi_s32_vector(numers, _mm256_set1_epi32(magic));
+    q = _mm256_add_epi32(q, numers); // q += numers
+
+    // If q is non-negative, we have nothing to do
+    // If q is negative, we want to add either (2**shift)-1 if d is
+    // a power of 2, or (2**shift) if it is not a power of 2
+    uint32_t is_power_of_2 = (magic == 0);
+    __m256i q_sign = _mm256_srai_epi32(q, 31); // q_sign = q >> 31
+    __m256i mask = _mm256_set1_epi32((1U << shift) - is_power_of_2);
+    q = _mm256_add_epi32(q, _mm256_and_si256(q_sign, mask)); // q = q + (q_sign & mask)
+    q = _mm256_srai_epi32(q, shift); // q >>= shift
+    q = _mm256_sub_epi32(_mm256_xor_si256(q, sign), sign); // q = (q ^ sign) - sign
+    return q;
+}
+
+////////// SINT64
+
+__m256i libdivide_s64_do_vector(__m256i numers, const struct libdivide_s64_t *denom) {
+    uint8_t more = denom->more;
+    int64_t magic = denom->magic;
+    if (magic == 0) { // shift path
+        uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+        uint64_t mask = (1ULL << shift) - 1;
+        __m256i roundToZeroTweak = _mm256_set1_epi64x(mask);
+        // q = numer + ((numer >> 63) & roundToZeroTweak);
+        __m256i q = _mm256_add_epi64(numers, _mm256_and_si256(libdivide_s64_signbits(numers), roundToZeroTweak));
+        q = libdivide_s64_shift_right_vector(q, shift);
+        __m256i sign = _mm256_set1_epi32((int8_t)more >> 7);
+         // q = (q ^ sign) - sign;
+        q = _mm256_sub_epi64(_mm256_xor_si256(q, sign), sign);
+        return q;
+    }
+    else {
+        __m256i q = libdivide_mullhi_s64_vector(numers, _mm256_set1_epi64x(magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // must be arithmetic shift
+            __m256i sign = _mm256_set1_epi32((int8_t)more >> 7);
+            // q += ((numer ^ sign) - sign);
+            q = _mm256_add_epi64(q, _mm256_sub_epi64(_mm256_xor_si256(numers, sign), sign));
+        }
+        // q >>= denom->mult_path.shift
+        q = libdivide_s64_shift_right_vector(q, more & LIBDIVIDE_64_SHIFT_MASK);
+        q = _mm256_add_epi64(q, _mm256_srli_epi64(q, 63)); // q += (q < 0)
+        return q;
+    }
+}
+
+__m256i libdivide_s64_branchfree_do_vector(__m256i numers, const struct libdivide_s64_branchfree_t *denom) {
+    int64_t magic = denom->magic;
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+    // must be arithmetic shift
+    __m256i sign = _mm256_set1_epi32((int8_t)more >> 7);
+
+     // libdivide_mullhi_s64(numers, magic);
+    __m256i q = libdivide_mullhi_s64_vector(numers, _mm256_set1_epi64x(magic));
+    q = _mm256_add_epi64(q, numers); // q += numers
+
+    // If q is non-negative, we have nothing to do.
+    // If q is negative, we want to add either (2**shift)-1 if d is
+    // a power of 2, or (2**shift) if it is not a power of 2.
+    uint32_t is_power_of_2 = (magic == 0);
+    __m256i q_sign = libdivide_s64_signbits(q); // q_sign = q >> 63
+    __m256i mask = _mm256_set1_epi64x((1ULL << shift) - is_power_of_2);
+    q = _mm256_add_epi64(q, _mm256_and_si256(q_sign, mask)); // q = q + (q_sign & mask)
+    q = libdivide_s64_shift_right_vector(q, shift); // q >>= shift
+    q = _mm256_sub_epi64(_mm256_xor_si256(q, sign), sign); // q = (q ^ sign) - sign
+    return q;
+}
+
+#elif defined(LIBDIVIDE_SSE2)
+
+static inline __m128i libdivide_u32_do_vector(__m128i numers, const struct libdivide_u32_t *denom);
+static inline __m128i libdivide_s32_do_vector(__m128i numers, const struct libdivide_s32_t *denom);
+static inline __m128i libdivide_u64_do_vector(__m128i numers, const struct libdivide_u64_t *denom);
+static inline __m128i libdivide_s64_do_vector(__m128i numers, const struct libdivide_s64_t *denom);
+
+static inline __m128i libdivide_u32_branchfree_do_vector(__m128i numers, const struct libdivide_u32_branchfree_t *denom);
+static inline __m128i libdivide_s32_branchfree_do_vector(__m128i numers, const struct libdivide_s32_branchfree_t *denom);
+static inline __m128i libdivide_u64_branchfree_do_vector(__m128i numers, const struct libdivide_u64_branchfree_t *denom);
+static inline __m128i libdivide_s64_branchfree_do_vector(__m128i numers, const struct libdivide_s64_branchfree_t *denom);
+
+//////// Internal Utility Functions
+
+// Implementation of _mm_srai_epi64(v, 63) (from AVX512).
+static inline __m128i libdivide_s64_signbits(__m128i v) {
+    __m128i hiBitsDuped = _mm_shuffle_epi32(v, _MM_SHUFFLE(3, 3, 1, 1));
+    __m128i signBits = _mm_srai_epi32(hiBitsDuped, 31);
+    return signBits;
+}
+
+// Implementation of _mm_srai_epi64 (from AVX512).
+static inline __m128i libdivide_s64_shift_right_vector(__m128i v, int amt) {
+    const int b = 64 - amt;
+    __m128i m = _mm_set1_epi64x(1ULL << (b - 1));
+    __m128i x = _mm_srli_epi64(v, amt);
+    __m128i result = _mm_sub_epi64(_mm_xor_si128(x, m), m);
+    return result;
+}
+
+// Here, b is assumed to contain one 32-bit value repeated.
+static inline __m128i libdivide_mullhi_u32_vector(__m128i a, __m128i b) {
+    __m128i hi_product_0Z2Z = _mm_srli_epi64(_mm_mul_epu32(a, b), 32);
+    __m128i a1X3X = _mm_srli_epi64(a, 32);
+    __m128i mask = _mm_set_epi32(-1, 0, -1, 0);
+    __m128i hi_product_Z1Z3 = _mm_and_si128(_mm_mul_epu32(a1X3X, b), mask);
+    return _mm_or_si128(hi_product_0Z2Z, hi_product_Z1Z3);
+}
+
+// SSE2 does not have a signed multiplication instruction, but we can convert
+// unsigned to signed pretty efficiently. Again, b is just a 32 bit value
+// repeated four times.
+static inline __m128i libdivide_mullhi_s32_vector(__m128i a, __m128i b) {
+    __m128i p = libdivide_mullhi_u32_vector(a, b);
+    // t1 = (a >> 31) & y, arithmetic shift
+    __m128i t1 = _mm_and_si128(_mm_srai_epi32(a, 31), b);
+    __m128i t2 = _mm_and_si128(_mm_srai_epi32(b, 31), a);
+    p = _mm_sub_epi32(p, t1);
+    p = _mm_sub_epi32(p, t2);
+    return p;
+}
+
+// Here, y is assumed to contain one 64-bit value repeated.
+// https://stackoverflow.com/a/28827013
+static inline __m128i libdivide_mullhi_u64_vector(__m128i x, __m128i y) {
+    __m128i lomask = _mm_set1_epi64x(0xffffffff);
+    __m128i xh = _mm_shuffle_epi32(x, 0xB1);        // x0l, x0h, x1l, x1h
+    __m128i yh = _mm_shuffle_epi32(y, 0xB1);        // y0l, y0h, y1l, y1h
+    __m128i w0 = _mm_mul_epu32(x, y);               // x0l*y0l, x1l*y1l
+    __m128i w1 = _mm_mul_epu32(x, yh);              // x0l*y0h, x1l*y1h
+    __m128i w2 = _mm_mul_epu32(xh, y);              // x0h*y0l, x1h*y0l
+    __m128i w3 = _mm_mul_epu32(xh, yh);             // x0h*y0h, x1h*y1h
+    __m128i w0h = _mm_srli_epi64(w0, 32);
+    __m128i s1 = _mm_add_epi64(w1, w0h);
+    __m128i s1l = _mm_and_si128(s1, lomask);
+    __m128i s1h = _mm_srli_epi64(s1, 32);
+    __m128i s2 = _mm_add_epi64(w2, s1l);
+    __m128i s2h = _mm_srli_epi64(s2, 32);
+    __m128i hi = _mm_add_epi64(w3, s1h);
+            hi = _mm_add_epi64(hi, s2h);
+
+    return hi;
+}
+
+// y is one 64-bit value repeated.
+static inline __m128i libdivide_mullhi_s64_vector(__m128i x, __m128i y) {
+    __m128i p = libdivide_mullhi_u64_vector(x, y);
+    __m128i t1 = _mm_and_si128(libdivide_s64_signbits(x), y);
+    __m128i t2 = _mm_and_si128(libdivide_s64_signbits(y), x);
+    p = _mm_sub_epi64(p, t1);
+    p = _mm_sub_epi64(p, t2);
+    return p;
+}
+
+////////// UINT32
+
+__m128i libdivide_u32_do_vector(__m128i numers, const struct libdivide_u32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return _mm_srli_epi32(numers, more);
+    }
+    else {
+        __m128i q = libdivide_mullhi_u32_vector(numers, _mm_set1_epi32(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // uint32_t t = ((numer - q) >> 1) + q;
+            // return t >> denom->shift;
+            uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+            __m128i t = _mm_add_epi32(_mm_srli_epi32(_mm_sub_epi32(numers, q), 1), q);
+            return _mm_srli_epi32(t, shift);
+        }
+        else {
+            return _mm_srli_epi32(q, more);
+        }
+    }
+}
+
+__m128i libdivide_u32_branchfree_do_vector(__m128i numers, const struct libdivide_u32_branchfree_t *denom) {
+    __m128i q = libdivide_mullhi_u32_vector(numers, _mm_set1_epi32(denom->magic));
+    __m128i t = _mm_add_epi32(_mm_srli_epi32(_mm_sub_epi32(numers, q), 1), q);
+    return _mm_srli_epi32(t, denom->more);
+}
+
+////////// UINT64
+
+__m128i libdivide_u64_do_vector(__m128i numers, const struct libdivide_u64_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        return _mm_srli_epi64(numers, more);
+    }
+    else {
+        __m128i q = libdivide_mullhi_u64_vector(numers, _mm_set1_epi64x(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // uint32_t t = ((numer - q) >> 1) + q;
+            // return t >> denom->shift;
+            uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+            __m128i t = _mm_add_epi64(_mm_srli_epi64(_mm_sub_epi64(numers, q), 1), q);
+            return _mm_srli_epi64(t, shift);
+        }
+        else {
+            return _mm_srli_epi64(q, more);
+        }
+    }
+}
+
+__m128i libdivide_u64_branchfree_do_vector(__m128i numers, const struct libdivide_u64_branchfree_t *denom) {
+    __m128i q = libdivide_mullhi_u64_vector(numers, _mm_set1_epi64x(denom->magic));
+    __m128i t = _mm_add_epi64(_mm_srli_epi64(_mm_sub_epi64(numers, q), 1), q);
+    return _mm_srli_epi64(t, denom->more);
+}
+
+////////// SINT32
+
+__m128i libdivide_s32_do_vector(__m128i numers, const struct libdivide_s32_t *denom) {
+    uint8_t more = denom->more;
+    if (!denom->magic) {
+        uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+        uint32_t mask = (1U << shift) - 1;
+        __m128i roundToZeroTweak = _mm_set1_epi32(mask);
+        // q = numer + ((numer >> 31) & roundToZeroTweak);
+        __m128i q = _mm_add_epi32(numers, _mm_and_si128(_mm_srai_epi32(numers, 31), roundToZeroTweak));
+        q = _mm_srai_epi32(q, shift);
+        __m128i sign = _mm_set1_epi32((int8_t)more >> 7);
+        // q = (q ^ sign) - sign;
+        q = _mm_sub_epi32(_mm_xor_si128(q, sign), sign);
+        return q;
+    }
+    else {
+        __m128i q = libdivide_mullhi_s32_vector(numers, _mm_set1_epi32(denom->magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+             // must be arithmetic shift
+            __m128i sign = _mm_set1_epi32((int8_t)more >> 7);
+             // q += ((numer ^ sign) - sign);
+            q = _mm_add_epi32(q, _mm_sub_epi32(_mm_xor_si128(numers, sign), sign));
+        }
+        // q >>= shift
+        q = _mm_srai_epi32(q, more & LIBDIVIDE_32_SHIFT_MASK);
+        q = _mm_add_epi32(q, _mm_srli_epi32(q, 31)); // q += (q < 0)
+        return q;
+    }
+}
+
+__m128i libdivide_s32_branchfree_do_vector(__m128i numers, const struct libdivide_s32_branchfree_t *denom) {
+    int32_t magic = denom->magic;
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK;
+     // must be arithmetic shift
+    __m128i sign = _mm_set1_epi32((int8_t)more >> 7);
+    __m128i q = libdivide_mullhi_s32_vector(numers, _mm_set1_epi32(magic));
+    q = _mm_add_epi32(q, numers); // q += numers
+
+    // If q is non-negative, we have nothing to do
+    // If q is negative, we want to add either (2**shift)-1 if d is
+    // a power of 2, or (2**shift) if it is not a power of 2
+    uint32_t is_power_of_2 = (magic == 0);
+    __m128i q_sign = _mm_srai_epi32(q, 31); // q_sign = q >> 31
+    __m128i mask = _mm_set1_epi32((1U << shift) - is_power_of_2);
+    q = _mm_add_epi32(q, _mm_and_si128(q_sign, mask)); // q = q + (q_sign & mask)
+    q = _mm_srai_epi32(q, shift); // q >>= shift
+    q = _mm_sub_epi32(_mm_xor_si128(q, sign), sign); // q = (q ^ sign) - sign
+    return q;
+}
+
+////////// SINT64
+
+__m128i libdivide_s64_do_vector(__m128i numers, const struct libdivide_s64_t *denom) {
+    uint8_t more = denom->more;
+    int64_t magic = denom->magic;
+    if (magic == 0) { // shift path
+        uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+        uint64_t mask = (1ULL << shift) - 1;
+        __m128i roundToZeroTweak = _mm_set1_epi64x(mask);
+        // q = numer + ((numer >> 63) & roundToZeroTweak);
+        __m128i q = _mm_add_epi64(numers, _mm_and_si128(libdivide_s64_signbits(numers), roundToZeroTweak));
+        q = libdivide_s64_shift_right_vector(q, shift);
+        __m128i sign = _mm_set1_epi32((int8_t)more >> 7);
+         // q = (q ^ sign) - sign;
+        q = _mm_sub_epi64(_mm_xor_si128(q, sign), sign);
+        return q;
+    }
+    else {
+        __m128i q = libdivide_mullhi_s64_vector(numers, _mm_set1_epi64x(magic));
+        if (more & LIBDIVIDE_ADD_MARKER) {
+            // must be arithmetic shift
+            __m128i sign = _mm_set1_epi32((int8_t)more >> 7);
+            // q += ((numer ^ sign) - sign);
+            q = _mm_add_epi64(q, _mm_sub_epi64(_mm_xor_si128(numers, sign), sign));
+        }
+        // q >>= denom->mult_path.shift
+        q = libdivide_s64_shift_right_vector(q, more & LIBDIVIDE_64_SHIFT_MASK);
+        q = _mm_add_epi64(q, _mm_srli_epi64(q, 63)); // q += (q < 0)
+        return q;
+    }
+}
+
+__m128i libdivide_s64_branchfree_do_vector(__m128i numers, const struct libdivide_s64_branchfree_t *denom) {
+    int64_t magic = denom->magic;
+    uint8_t more = denom->more;
+    uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK;
+    // must be arithmetic shift
+    __m128i sign = _mm_set1_epi32((int8_t)more >> 7);
+
+     // libdivide_mullhi_s64(numers, magic);
+    __m128i q = libdivide_mullhi_s64_vector(numers, _mm_set1_epi64x(magic));
+    q = _mm_add_epi64(q, numers); // q += numers
+
+    // If q is non-negative, we have nothing to do.
+    // If q is negative, we want to add either (2**shift)-1 if d is
+    // a power of 2, or (2**shift) if it is not a power of 2.
+    uint32_t is_power_of_2 = (magic == 0);
+    __m128i q_sign = libdivide_s64_signbits(q); // q_sign = q >> 63
+    __m128i mask = _mm_set1_epi64x((1ULL << shift) - is_power_of_2);
+    q = _mm_add_epi64(q, _mm_and_si128(q_sign, mask)); // q = q + (q_sign & mask)
+    q = libdivide_s64_shift_right_vector(q, shift); // q >>= shift
+    q = _mm_sub_epi64(_mm_xor_si128(q, sign), sign); // q = (q ^ sign) - sign
+    return q;
+}
+
+#endif
+
+/////////// C++ stuff
+
+#ifdef __cplusplus
+
+// The C++ divider class is templated on both an integer type
+// (like uint64_t) and an algorithm type.
+// * BRANCHFULL is the default algorithm type.
+// * BRANCHFREE is the branchfree algorithm type.
+enum {
+    BRANCHFULL,
+    BRANCHFREE
+};
+
+#if defined(LIBDIVIDE_AVX512)
+    #define LIBDIVIDE_VECTOR_TYPE __m512i
+#elif defined(LIBDIVIDE_AVX2)
+    #define LIBDIVIDE_VECTOR_TYPE __m256i
+#elif defined(LIBDIVIDE_SSE2)
+    #define LIBDIVIDE_VECTOR_TYPE __m128i
+#endif
+
+#if !defined(LIBDIVIDE_VECTOR_TYPE)
+    #define LIBDIVIDE_DIVIDE_VECTOR(ALGO)
+#else
+    #define LIBDIVIDE_DIVIDE_VECTOR(ALGO) \
+        LIBDIVIDE_VECTOR_TYPE divide(LIBDIVIDE_VECTOR_TYPE n) const { \
+            return libdivide_##ALGO##_do_vector(n, &denom); \
+        }
+#endif
+
+// The DISPATCHER_GEN() macro generates C++ methods (for the given integer
+// and algorithm types) that redirect to libdivide's C API.
+#define DISPATCHER_GEN(T, ALGO) \
+    libdivide_##ALGO##_t denom; \
+    dispatcher() { } \
+    dispatcher(T d) \
+        : denom(libdivide_##ALGO##_gen(d)) \
+    { } \
+    T divide(T n) const { \
+        return libdivide_##ALGO##_do(n, &denom); \
+    } \
+    LIBDIVIDE_DIVIDE_VECTOR(ALGO) \
+    T recover() const { \
+        return libdivide_##ALGO##_recover(&denom); \
+    }
+
+// The dispatcher selects a specific division algorithm for a given
+// type and ALGO using partial template specialization.
+template<bool IS_INTEGRAL, bool IS_SIGNED, int SIZEOF, int ALGO> struct dispatcher { };
+
+template<> struct dispatcher<true, true, sizeof(int32_t), BRANCHFULL> { DISPATCHER_GEN(int32_t, s32) };
+template<> struct dispatcher<true, true, sizeof(int32_t), BRANCHFREE> { DISPATCHER_GEN(int32_t, s32_branchfree) };
+template<> struct dispatcher<true, false, sizeof(uint32_t), BRANCHFULL> { DISPATCHER_GEN(uint32_t, u32) };
+template<> struct dispatcher<true, false, sizeof(uint32_t), BRANCHFREE> { DISPATCHER_GEN(uint32_t, u32_branchfree) };
+template<> struct dispatcher<true, true, sizeof(int64_t), BRANCHFULL> { DISPATCHER_GEN(int64_t, s64) };
+template<> struct dispatcher<true, true, sizeof(int64_t), BRANCHFREE> { DISPATCHER_GEN(int64_t, s64_branchfree) };
+template<> struct dispatcher<true, false, sizeof(uint64_t), BRANCHFULL> { DISPATCHER_GEN(uint64_t, u64) };
+template<> struct dispatcher<true, false, sizeof(uint64_t), BRANCHFREE> { DISPATCHER_GEN(uint64_t, u64_branchfree) };
+
+// This is the main divider class for use by the user (C++ API).
+// The actual division algorithm is selected using the dispatcher struct
+// based on the integer and algorithm template parameters.
+template<typename T, int ALGO = BRANCHFULL>
+class divider {
+public:
+    // We leave the default constructor empty so that creating
+    // an array of dividers and then initializing them
+    // later doesn't slow us down.
+    divider() { }
+
+    // Constructor that takes the divisor as a parameter
+    divider(T d) : div(d) { }
+
+    // Divides n by the divisor
+    T divide(T n) const {
+        return div.divide(n);
+    }
+
+    // Recovers the divisor, returns the value that was
+    // used to initialize this divider object.
+    T recover() const {
+        return div.recover();
+    }
+
+    bool operator==(const divider<T, ALGO>& other) const {
+        return div.denom.magic == other.denom.magic &&
+               div.denom.more == other.denom.more;
+    }
+
+    bool operator!=(const divider<T, ALGO>& other) const {
+        return !(*this == other);
+    }
+
+#if defined(LIBDIVIDE_VECTOR_TYPE)
+    // Treats the vector as packed integer values with the same type as
+    // the divider (e.g. s32, u32, s64, u64) and divides each of
+    // them by the divider, returning the packed quotients.
+    LIBDIVIDE_VECTOR_TYPE divide(LIBDIVIDE_VECTOR_TYPE n) const {
+        return div.divide(n);
+    }
+#endif
+
+private:
+    // Storage for the actual divisor
+    dispatcher<std::is_integral<T>::value,
+               std::is_signed<T>::value, sizeof(T), ALGO> div;
+};
+
+// Overload of operator / for scalar division
+template<typename T, int ALGO>
+T operator/(T n, const divider<T, ALGO>& div) {
+    return div.divide(n);
+}
+
+// Overload of operator /= for scalar division
+template<typename T, int ALGO>
+T& operator/=(T& n, const divider<T, ALGO>& div) {
+    n = div.divide(n);
+    return n;
+}
+
+#if defined(LIBDIVIDE_VECTOR_TYPE)
+    // Overload of operator / for vector division
+    template<typename T, int ALGO>
+    LIBDIVIDE_VECTOR_TYPE operator/(LIBDIVIDE_VECTOR_TYPE n, const divider<T, ALGO>& div) {
+        return div.divide(n);
+    }
+    // Overload of operator /= for vector division
+    template<typename T, int ALGO>
+    LIBDIVIDE_VECTOR_TYPE& operator/=(LIBDIVIDE_VECTOR_TYPE& n, const divider<T, ALGO>& div) {
+        n = div.divide(n);
+        return n;
+    }
+#endif
+
+// libdivdie::branchfree_divider<T>
+template <typename T>
+using branchfree_divider = divider<T, BRANCHFREE>;
+
+}  // namespace libdivide
+
+#endif  // __cplusplus
+
+#endif  // NUMPY_CORE_INCLUDE_NUMPY_LIBDIVIDE_LIBDIVIDE_H_
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ufuncobject.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ufuncobject.h
new file mode 100644
index 0000000000000000000000000000000000000000..01696760220df993be8777518b77fa72cac3cb8d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/ufuncobject.h
@@ -0,0 +1,343 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_UFUNCOBJECT_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_UFUNCOBJECT_H_
+
+#include <numpy/npy_math.h>
+#include <numpy/npy_common.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * The legacy generic inner loop for a standard element-wise or
+ * generalized ufunc.
+ */
+typedef void (*PyUFuncGenericFunction)
+            (char **args,
+             npy_intp const *dimensions,
+             npy_intp const *strides,
+             void *innerloopdata);
+
+/*
+ * The most generic one-dimensional inner loop for
+ * a masked standard element-wise ufunc. "Masked" here means that it skips
+ * doing calculations on any items for which the maskptr array has a true
+ * value.
+ */
+typedef void (PyUFunc_MaskedStridedInnerLoopFunc)(
+                char **dataptrs, npy_intp *strides,
+                char *maskptr, npy_intp mask_stride,
+                npy_intp count,
+                NpyAuxData *innerloopdata);
+
+/* Forward declaration for the type resolver and loop selector typedefs */
+struct _tagPyUFuncObject;
+
+/*
+ * Given the operands for calling a ufunc, should determine the
+ * calculation input and output data types and return an inner loop function.
+ * This function should validate that the casting rule is being followed,
+ * and fail if it is not.
+ *
+ * For backwards compatibility, the regular type resolution function does not
+ * support auxiliary data with object semantics. The type resolution call
+ * which returns a masked generic function returns a standard NpyAuxData
+ * object, for which the NPY_AUXDATA_FREE and NPY_AUXDATA_CLONE macros
+ * work.
+ *
+ * ufunc:             The ufunc object.
+ * casting:           The 'casting' parameter provided to the ufunc.
+ * operands:          An array of length (ufunc->nin + ufunc->nout),
+ *                    with the output parameters possibly NULL.
+ * type_tup:          Either NULL, or the type_tup passed to the ufunc.
+ * out_dtypes:        An array which should be populated with new
+ *                    references to (ufunc->nin + ufunc->nout) new
+ *                    dtypes, one for each input and output. These
+ *                    dtypes should all be in native-endian format.
+ *
+ * Should return 0 on success, -1 on failure (with exception set),
+ * or -2 if Py_NotImplemented should be returned.
+ */
+typedef int (PyUFunc_TypeResolutionFunc)(
+                                struct _tagPyUFuncObject *ufunc,
+                                NPY_CASTING casting,
+                                PyArrayObject **operands,
+                                PyObject *type_tup,
+                                PyArray_Descr **out_dtypes);
+
+/*
+ * This is the signature for the functions that may be assigned to the
+ * `process_core_dims_func` field of the PyUFuncObject structure.
+ * Implementation of this function is optional.  This function is only used
+ * by generalized ufuncs (i.e. those with the field `core_enabled` set to 1).
+ * The function is called by the ufunc during the processing of the arguments
+ * of a call of the ufunc. The function can check the core dimensions of the
+ * input and output arrays and return -1 with an exception set if any
+ * requirements are not satisfied. If the caller of the ufunc didn't provide
+ * output arrays, the core dimensions associated with the output arrays (i.e.
+ * those that are not also used in input arrays) will have the value -1 in
+ * `core_dim_sizes`.  This function can replace any output core dimensions
+ * that are -1 with a value that is appropriate for the ufunc.
+ *
+ * Parameter       Description
+ * --------------- ------------------------------------------------------
+ * ufunc           The ufunc object
+ * core_dim_sizes  An array with length `ufunc->core_num_dim_ix`.
+ *                 The core dimensions of the arrays passed to the ufunc
+ *                 will have been set.  If the caller of the ufunc didn't
+ *                 provide the output array(s), the output-only core
+ *                 dimensions will have the value -1.
+ *
+ * The function must not change any element in `core_dim_sizes` that is
+ * not -1 on input. Doing so will result in incorrect output from the
+ * ufunc, and could result in a crash of the Python interpreter.
+ *
+ * The function must return 0 on success, -1 on failure (with an exception
+ * set).
+ */
+typedef int (PyUFunc_ProcessCoreDimsFunc)(
+                                struct _tagPyUFuncObject *ufunc,
+                                npy_intp *core_dim_sizes);
+
+typedef struct _tagPyUFuncObject {
+        PyObject_HEAD
+        /*
+         * nin: Number of inputs
+         * nout: Number of outputs
+         * nargs: Always nin + nout (Why is it stored?)
+         */
+        int nin, nout, nargs;
+
+        /*
+         * Identity for reduction, any of PyUFunc_One, PyUFunc_Zero
+         * PyUFunc_MinusOne, PyUFunc_None, PyUFunc_ReorderableNone,
+         * PyUFunc_IdentityValue.
+         */
+        int identity;
+
+        /* Array of one-dimensional core loops */
+        PyUFuncGenericFunction *functions;
+        /* Array of funcdata that gets passed into the functions */
+        void *const *data;
+        /* The number of elements in 'functions' and 'data' */
+        int ntypes;
+
+        /* Used to be unused field 'check_return' */
+        int reserved1;
+
+        /* The name of the ufunc */
+        const char *name;
+
+        /* Array of type numbers, of size ('nargs' * 'ntypes') */
+        const char *types;
+
+        /* Documentation string */
+        const char *doc;
+
+        void *ptr;
+        PyObject *obj;
+        PyObject *userloops;
+
+        /* generalized ufunc parameters */
+
+        /* 0 for scalar ufunc; 1 for generalized ufunc */
+        int core_enabled;
+        /* number of distinct dimension names in signature */
+        int core_num_dim_ix;
+
+        /*
+         * dimension indices of input/output argument k are stored in
+         * core_dim_ixs[core_offsets[k]..core_offsets[k]+core_num_dims[k]-1]
+         */
+
+        /* numbers of core dimensions of each argument */
+        int *core_num_dims;
+        /*
+         * dimension indices in a flatted form; indices
+         * are in the range of [0,core_num_dim_ix)
+         */
+        int *core_dim_ixs;
+        /*
+         * positions of 1st core dimensions of each
+         * argument in core_dim_ixs, equivalent to cumsum(core_num_dims)
+         */
+        int *core_offsets;
+        /* signature string for printing purpose */
+        char *core_signature;
+
+        /*
+         * A function which resolves the types and fills an array
+         * with the dtypes for the inputs and outputs.
+         */
+        PyUFunc_TypeResolutionFunc *type_resolver;
+
+        /* A dictionary to monkeypatch ufuncs */
+        PyObject *dict;
+
+        /*
+         * This was blocked off to be the "new" inner loop selector in 1.7,
+         * but this was never implemented. (This is also why the above
+         * selector is called the "legacy" selector.)
+         */
+        #ifndef Py_LIMITED_API
+            vectorcallfunc vectorcall;
+        #else
+            void *vectorcall;
+        #endif
+
+        /* Was previously the `PyUFunc_MaskedInnerLoopSelectionFunc` */
+        void *reserved3;
+
+        /*
+         * List of flags for each operand when ufunc is called by nditer object.
+         * These flags will be used in addition to the default flags for each
+         * operand set by nditer object.
+         */
+        npy_uint32 *op_flags;
+
+        /*
+         * List of global flags used when ufunc is called by nditer object.
+         * These flags will be used in addition to the default global flags
+         * set by nditer object.
+         */
+        npy_uint32 iter_flags;
+
+        /* New in NPY_API_VERSION 0x0000000D and above */
+    #if NPY_FEATURE_VERSION >= NPY_1_16_API_VERSION
+        /*
+         * for each core_num_dim_ix distinct dimension names,
+         * the possible "frozen" size (-1 if not frozen).
+         */
+        npy_intp *core_dim_sizes;
+
+        /*
+         * for each distinct core dimension, a set of UFUNC_CORE_DIM* flags
+         */
+        npy_uint32 *core_dim_flags;
+
+        /* Identity for reduction, when identity == PyUFunc_IdentityValue */
+        PyObject *identity_value;
+    #endif  /* NPY_FEATURE_VERSION >= NPY_1_16_API_VERSION */
+
+        /* New in NPY_API_VERSION 0x0000000F and above */
+    #if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION
+        /* New private fields related to dispatching */
+        void *_dispatch_cache;
+        /* A PyListObject of `(tuple of DTypes, ArrayMethod/Promoter)` */
+        PyObject *_loops;
+    #endif
+    #if NPY_FEATURE_VERSION >= NPY_2_1_API_VERSION
+        /*
+         * Optional function to process core dimensions of a gufunc.
+         */
+        PyUFunc_ProcessCoreDimsFunc *process_core_dims_func;
+    #endif
+} PyUFuncObject;
+
+#include "arrayobject.h"
+/* Generalized ufunc; 0x0001 reserved for possible use as CORE_ENABLED */
+/* the core dimension's size will be determined by the operands. */
+#define UFUNC_CORE_DIM_SIZE_INFERRED 0x0002
+/* the core dimension may be absent */
+#define UFUNC_CORE_DIM_CAN_IGNORE 0x0004
+/* flags inferred during execution */
+#define UFUNC_CORE_DIM_MISSING 0x00040000
+
+
+#define UFUNC_OBJ_ISOBJECT      1
+#define UFUNC_OBJ_NEEDS_API     2
+
+
+#if NPY_ALLOW_THREADS
+#define NPY_LOOP_BEGIN_THREADS do {if (!(loop->obj & UFUNC_OBJ_NEEDS_API)) _save = PyEval_SaveThread();} while (0);
+#define NPY_LOOP_END_THREADS   do {if (!(loop->obj & UFUNC_OBJ_NEEDS_API)) PyEval_RestoreThread(_save);} while (0);
+#else
+#define NPY_LOOP_BEGIN_THREADS
+#define NPY_LOOP_END_THREADS
+#endif
+
+/*
+ * UFunc has unit of 0, and the order of operations can be reordered
+ * This case allows reduction with multiple axes at once.
+ */
+#define PyUFunc_Zero 0
+/*
+ * UFunc has unit of 1, and the order of operations can be reordered
+ * This case allows reduction with multiple axes at once.
+ */
+#define PyUFunc_One 1
+/*
+ * UFunc has unit of -1, and the order of operations can be reordered
+ * This case allows reduction with multiple axes at once. Intended for
+ * bitwise_and reduction.
+ */
+#define PyUFunc_MinusOne 2
+/*
+ * UFunc has no unit, and the order of operations cannot be reordered.
+ * This case does not allow reduction with multiple axes at once.
+ */
+#define PyUFunc_None -1
+/*
+ * UFunc has no unit, and the order of operations can be reordered
+ * This case allows reduction with multiple axes at once.
+ */
+#define PyUFunc_ReorderableNone -2
+/*
+ * UFunc unit is an identity_value, and the order of operations can be reordered
+ * This case allows reduction with multiple axes at once.
+ */
+#define PyUFunc_IdentityValue -3
+
+
+#define UFUNC_REDUCE 0
+#define UFUNC_ACCUMULATE 1
+#define UFUNC_REDUCEAT 2
+#define UFUNC_OUTER 3
+
+
+typedef struct {
+        int nin;
+        int nout;
+        PyObject *callable;
+} PyUFunc_PyFuncData;
+
+/* A linked-list of function information for
+   user-defined 1-d loops.
+ */
+typedef struct _loop1d_info {
+        PyUFuncGenericFunction func;
+        void *data;
+        int *arg_types;
+        struct _loop1d_info *next;
+        int nargs;
+        PyArray_Descr **arg_dtypes;
+} PyUFunc_Loop1d;
+
+
+#define UFUNC_PYVALS_NAME "UFUNC_PYVALS"
+
+/* THESE MACROS ARE DEPRECATED.
+ * Use npy_set_floatstatus_* in the npymath library.
+ */
+#define UFUNC_FPE_DIVIDEBYZERO  NPY_FPE_DIVIDEBYZERO
+#define UFUNC_FPE_OVERFLOW      NPY_FPE_OVERFLOW
+#define UFUNC_FPE_UNDERFLOW     NPY_FPE_UNDERFLOW
+#define UFUNC_FPE_INVALID       NPY_FPE_INVALID
+
+/* Make sure it gets defined if it isn't already */
+#ifndef UFUNC_NOFPE
+/* Clear the floating point exception default of Borland C++ */
+#if defined(__BORLANDC__)
+#define UFUNC_NOFPE _control87(MCW_EM, MCW_EM);
+#else
+#define UFUNC_NOFPE
+#endif
+#endif
+
+#include "__ufunc_api.h"
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_UFUNCOBJECT_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/utils.h b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/utils.h
new file mode 100644
index 0000000000000000000000000000000000000000..f959b4dc2165ecfa58655a7c3d943c274f786765
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/include/numpy/utils.h
@@ -0,0 +1,37 @@
+#ifndef NUMPY_CORE_INCLUDE_NUMPY_UTILS_H_
+#define NUMPY_CORE_INCLUDE_NUMPY_UTILS_H_
+
+#ifndef __COMP_NPY_UNUSED
+    #if defined(__GNUC__)
+        #define __COMP_NPY_UNUSED __attribute__ ((__unused__))
+    #elif defined(__ICC)
+        #define __COMP_NPY_UNUSED __attribute__ ((__unused__))
+    #elif defined(__clang__)
+        #define __COMP_NPY_UNUSED __attribute__ ((unused))
+    #else
+        #define __COMP_NPY_UNUSED
+    #endif
+#endif
+
+#if defined(__GNUC__) || defined(__ICC) || defined(__clang__)
+    #define NPY_DECL_ALIGNED(x) __attribute__ ((aligned (x)))
+#elif defined(_MSC_VER)
+    #define NPY_DECL_ALIGNED(x) __declspec(align(x))
+#else
+    #define NPY_DECL_ALIGNED(x)
+#endif
+
+/* Use this to tag a variable as not used. It will remove unused variable
+ * warning on support platforms (see __COM_NPY_UNUSED) and mangle the variable
+ * to avoid accidental use */
+#define NPY_UNUSED(x) __NPY_UNUSED_TAGGED ## x __COMP_NPY_UNUSED
+#define NPY_EXPAND(x) x
+
+#define NPY_STRINGIFY(x) #x
+#define NPY_TOSTRING(x) NPY_STRINGIFY(x)
+
+#define NPY_CAT__(a, b) a ## b
+#define NPY_CAT_(a, b) NPY_CAT__(a, b)
+#define NPY_CAT(a, b) NPY_CAT_(a, b)
+
+#endif  /* NUMPY_CORE_INCLUDE_NUMPY_UTILS_H_ */
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/lib/npy-pkg-config/mlib.ini b/python/user_packages/Python313/site-packages/numpy/_core/lib/npy-pkg-config/mlib.ini
new file mode 100644
index 0000000000000000000000000000000000000000..bd46aa8b00078adc5035078c6f5f03efd3648ebc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/lib/npy-pkg-config/mlib.ini
@@ -0,0 +1,12 @@
+[meta]
+Name = mlib
+Description = Math library used with this version of numpy
+Version = 1.0
+
+[default]
+Libs=
+Cflags=
+
+[msvc]
+Libs=m.lib
+Cflags=
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/lib/npy-pkg-config/npymath.ini b/python/user_packages/Python313/site-packages/numpy/_core/lib/npy-pkg-config/npymath.ini
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index 0000000000000000000000000000000000000000..3412b5cce3418e34fff5c81ae5801a137c75707a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/lib/npy-pkg-config/npymath.ini
@@ -0,0 +1,20 @@
+[meta]
+Name=npymath
+Description=Portable, core math library implementing C99 standard
+Version=0.1
+
+[variables]
+pkgname=numpy._core
+prefix=${pkgdir}
+libdir=${prefix}\lib
+includedir=${prefix}\include
+
+[default]
+Libs=-L${libdir} -lnpymath
+Cflags=-I${includedir}
+Requires=mlib
+
+[msvc]
+Libs=/LIBPATH:${libdir} npymath.lib
+Cflags=/INCLUDE:${includedir}
+Requires=mlib
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/lib/pkgconfig/numpy.pc b/python/user_packages/Python313/site-packages/numpy/_core/lib/pkgconfig/numpy.pc
new file mode 100644
index 0000000000000000000000000000000000000000..bf5a8058d34884bb6b509695556b8e844e2338d0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/lib/pkgconfig/numpy.pc
@@ -0,0 +1,7 @@
+prefix=${pcfiledir}/../..
+includedir=${prefix}/include
+
+Name: numpy
+Description: NumPy is the fundamental package for scientific computing with Python.
+Version: 2.4.4
+Cflags: -I${includedir}
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/_locales.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/_locales.py
new file mode 100644
index 0000000000000000000000000000000000000000..cec669d346dedf87f070793fd8939ffc548e1aa9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/_locales.py
@@ -0,0 +1,72 @@
+"""Provide class for testing in French locale
+
+"""
+import locale
+import sys
+
+import pytest
+
+__ALL__ = ['CommaDecimalPointLocale']
+
+
+def find_comma_decimal_point_locale():
+    """See if platform has a decimal point as comma locale.
+
+    Find a locale that uses a comma instead of a period as the
+    decimal point.
+
+    Returns
+    -------
+    old_locale: str
+        Locale when the function was called.
+    new_locale: {str, None)
+        First French locale found, None if none found.
+
+    """
+    if sys.platform == 'win32':
+        locales = ['FRENCH']
+    else:
+        locales = ['fr_FR', 'fr_FR.UTF-8', 'fi_FI', 'fi_FI.UTF-8']
+
+    old_locale = locale.getlocale(locale.LC_NUMERIC)
+    new_locale = None
+    try:
+        for loc in locales:
+            try:
+                locale.setlocale(locale.LC_NUMERIC, loc)
+                new_locale = loc
+                break
+            except locale.Error:
+                pass
+    finally:
+        locale.setlocale(locale.LC_NUMERIC, locale=old_locale)
+    return old_locale, new_locale
+
+
+class CommaDecimalPointLocale:
+    """Sets LC_NUMERIC to a locale with comma as decimal point.
+
+    Classes derived from this class have setup and teardown methods that run
+    tests with locale.LC_NUMERIC set to a locale where commas (',') are used as
+    the decimal point instead of periods ('.'). On exit the locale is restored
+    to the initial locale. It also serves as context manager with the same
+    effect. If no such locale is available, the test is skipped.
+
+    """
+    (cur_locale, tst_locale) = find_comma_decimal_point_locale()
+
+    def setup_method(self):
+        if self.tst_locale is None:
+            pytest.skip("No French locale available")
+        locale.setlocale(locale.LC_NUMERIC, locale=self.tst_locale)
+
+    def teardown_method(self):
+        locale.setlocale(locale.LC_NUMERIC, locale=self.cur_locale)
+
+    def __enter__(self):
+        if self.tst_locale is None:
+            pytest.skip("No French locale available")
+        locale.setlocale(locale.LC_NUMERIC, locale=self.tst_locale)
+
+    def __exit__(self, type, value, traceback):
+        locale.setlocale(locale.LC_NUMERIC, locale=self.cur_locale)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/_natype.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/_natype.py
new file mode 100644
index 0000000000000000000000000000000000000000..f8d25619b342dcc8a58ea8fa8858b260ed6931e1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/_natype.py
@@ -0,0 +1,144 @@
+# Vendored implementation of pandas.NA, adapted from pandas/_libs/missing.pyx
+#
+# This is vendored to avoid adding pandas as a test dependency.
+
+__all__ = ["pd_NA"]
+
+import numbers
+
+import numpy as np
+
+
+def _create_binary_propagating_op(name, is_divmod=False):
+    is_cmp = name.strip("_") in ["eq", "ne", "le", "lt", "ge", "gt"]
+
+    def method(self, other):
+        if (
+            other is pd_NA
+            or isinstance(other, (str, bytes, numbers.Number, np.bool))
+            or (isinstance(other, np.ndarray) and not other.shape)
+        ):
+            # Need the other.shape clause to handle NumPy scalars,
+            # since we do a setitem on `out` below, which
+            # won't work for NumPy scalars.
+            if is_divmod:
+                return pd_NA, pd_NA
+            else:
+                return pd_NA
+
+        elif isinstance(other, np.ndarray):
+            out = np.empty(other.shape, dtype=object)
+            out[:] = pd_NA
+
+            if is_divmod:
+                return out, out.copy()
+            else:
+                return out
+
+        elif is_cmp and isinstance(other, (np.datetime64, np.timedelta64)):
+            return pd_NA
+
+        elif isinstance(other, np.datetime64):
+            if name in ["__sub__", "__rsub__"]:
+                return pd_NA
+
+        elif isinstance(other, np.timedelta64):
+            if name in ["__sub__", "__rsub__", "__add__", "__radd__"]:
+                return pd_NA
+
+        return NotImplemented
+
+    method.__name__ = name
+    return method
+
+
+def _create_unary_propagating_op(name: str):
+    def method(self):
+        return pd_NA
+
+    method.__name__ = name
+    return method
+
+
+class NAType:
+    def __repr__(self) -> str:
+        return "<NA>"
+
+    def __format__(self, format_spec) -> str:
+        try:
+            return self.__repr__().__format__(format_spec)
+        except ValueError:
+            return self.__repr__()
+
+    def __bool__(self):
+        raise TypeError("boolean value of NA is ambiguous")
+
+    def __hash__(self):
+        return 2**61 - 1
+
+    def __reduce__(self):
+        return "pd_NA"
+
+    # Binary arithmetic and comparison ops -> propagate
+
+    __add__ = _create_binary_propagating_op("__add__")
+    __radd__ = _create_binary_propagating_op("__radd__")
+    __sub__ = _create_binary_propagating_op("__sub__")
+    __rsub__ = _create_binary_propagating_op("__rsub__")
+    __mul__ = _create_binary_propagating_op("__mul__")
+    __rmul__ = _create_binary_propagating_op("__rmul__")
+    __matmul__ = _create_binary_propagating_op("__matmul__")
+    __rmatmul__ = _create_binary_propagating_op("__rmatmul__")
+    __truediv__ = _create_binary_propagating_op("__truediv__")
+    __rtruediv__ = _create_binary_propagating_op("__rtruediv__")
+    __floordiv__ = _create_binary_propagating_op("__floordiv__")
+    __rfloordiv__ = _create_binary_propagating_op("__rfloordiv__")
+    __mod__ = _create_binary_propagating_op("__mod__")
+    __rmod__ = _create_binary_propagating_op("__rmod__")
+    __divmod__ = _create_binary_propagating_op("__divmod__", is_divmod=True)
+    __rdivmod__ = _create_binary_propagating_op("__rdivmod__", is_divmod=True)
+    # __lshift__ and __rshift__ are not implemented
+
+    __eq__ = _create_binary_propagating_op("__eq__")
+    __ne__ = _create_binary_propagating_op("__ne__")
+    __le__ = _create_binary_propagating_op("__le__")
+    __lt__ = _create_binary_propagating_op("__lt__")
+    __gt__ = _create_binary_propagating_op("__gt__")
+    __ge__ = _create_binary_propagating_op("__ge__")
+
+    # Unary ops
+
+    __neg__ = _create_unary_propagating_op("__neg__")
+    __pos__ = _create_unary_propagating_op("__pos__")
+    __abs__ = _create_unary_propagating_op("__abs__")
+    __invert__ = _create_unary_propagating_op("__invert__")
+
+    # Logical ops using Kleene logic
+
+    def __and__(self, other):
+        if other is False:
+            return False
+        elif other is True or other is pd_NA:
+            return pd_NA
+        return NotImplemented
+
+    __rand__ = __and__
+
+    def __or__(self, other):
+        if other is True:
+            return True
+        elif other is False or other is pd_NA:
+            return pd_NA
+        return NotImplemented
+
+    __ror__ = __or__
+
+    def __xor__(self, other):
+        if other is False or other is True or other is pd_NA:
+            return pd_NA
+        return NotImplemented
+
+    __rxor__ = __xor__
+
+
+pd_NA = NAType()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/generate_umath_validation_data.cpp b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/generate_umath_validation_data.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..a63fbe7b7e88ccaebac26e576c26049db7971bf9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/generate_umath_validation_data.cpp
@@ -0,0 +1,170 @@
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <math.h>
+#include <random>
+#include <cstdio>
+#include <ctime>
+#include <vector>
+
+struct ufunc {
+    std::string name;
+    double (*f32func)(double);
+    long double (*f64func)(long double);
+    float f32ulp;
+    float f64ulp;
+};
+
+template <typename T>
+T
+RandomFloat(T a, T b)
+{
+    T random = ((T)rand()) / (T)RAND_MAX;
+    T diff = b - a;
+    T r = random * diff;
+    return a + r;
+}
+
+template <typename T>
+void
+append_random_array(std::vector<T> &arr, T min, T max, size_t N)
+{
+    for (size_t ii = 0; ii < N; ++ii)
+        arr.emplace_back(RandomFloat<T>(min, max));
+}
+
+template <typename T1, typename T2>
+std::vector<T1>
+computeTrueVal(const std::vector<T1> &in, T2 (*mathfunc)(T2))
+{
+    std::vector<T1> out;
+    for (T1 elem : in) {
+        T2 elem_d = (T2)elem;
+        T1 out_elem = (T1)mathfunc(elem_d);
+        out.emplace_back(out_elem);
+    }
+    return out;
+}
+
+/*
+ * FP range:
+ * [-inf, -maxflt, -1., -minflt, -minden, 0., minden, minflt, 1., maxflt, inf]
+ */
+
+#define MINDEN std::numeric_limits<T>::denorm_min()
+#define MINFLT std::numeric_limits<T>::min()
+#define MAXFLT std::numeric_limits<T>::max()
+#define INF std::numeric_limits<T>::infinity()
+#define qNAN std::numeric_limits<T>::quiet_NaN()
+#define sNAN std::numeric_limits<T>::signaling_NaN()
+
+template <typename T>
+std::vector<T>
+generate_input_vector(std::string func)
+{
+    std::vector<T> input = {MINDEN,  -MINDEN, MINFLT, -MINFLT, MAXFLT,
+                            -MAXFLT, INF,     -INF,   qNAN,    sNAN,
+                            -1.0,    1.0,     0.0,    -0.0};
+
+    // [-1.0, 1.0]
+    if ((func == "arcsin") || (func == "arccos") || (func == "arctanh")) {
+        append_random_array<T>(input, -1.0, 1.0, 700);
+    }
+    // (0.0, INF]
+    else if ((func == "log2") || (func == "log10")) {
+        append_random_array<T>(input, 0.0, 1.0, 200);
+        append_random_array<T>(input, MINDEN, MINFLT, 200);
+        append_random_array<T>(input, MINFLT, 1.0, 200);
+        append_random_array<T>(input, 1.0, MAXFLT, 200);
+    }
+    // (-1.0, INF]
+    else if (func == "log1p") {
+        append_random_array<T>(input, -1.0, 1.0, 200);
+        append_random_array<T>(input, -MINFLT, -MINDEN, 100);
+        append_random_array<T>(input, -1.0, -MINFLT, 100);
+        append_random_array<T>(input, MINDEN, MINFLT, 100);
+        append_random_array<T>(input, MINFLT, 1.0, 100);
+        append_random_array<T>(input, 1.0, MAXFLT, 100);
+    }
+    // [1.0, INF]
+    else if (func == "arccosh") {
+        append_random_array<T>(input, 1.0, 2.0, 400);
+        append_random_array<T>(input, 2.0, MAXFLT, 300);
+    }
+    // [-INF, INF]
+    else {
+        append_random_array<T>(input, -1.0, 1.0, 100);
+        append_random_array<T>(input, MINDEN, MINFLT, 100);
+        append_random_array<T>(input, -MINFLT, -MINDEN, 100);
+        append_random_array<T>(input, MINFLT, 1.0, 100);
+        append_random_array<T>(input, -1.0, -MINFLT, 100);
+        append_random_array<T>(input, 1.0, MAXFLT, 100);
+        append_random_array<T>(input, -MAXFLT, -100.0, 100);
+    }
+
+    std::random_shuffle(input.begin(), input.end());
+    return input;
+}
+
+int
+main()
+{
+    srand(42);
+    std::vector<struct ufunc> umathfunc = {
+            {"sin", sin, sin, 1.49, 1.00},
+            {"cos", cos, cos, 1.49, 1.00},
+            {"tan", tan, tan, 3.91, 1.00},
+            {"arcsin", asin, asin, 3.12, 1.00},
+            {"arccos", acos, acos, 2.1, 1.00},
+            {"arctan", atan, atan, 2.3, 1.00},
+            {"sinh", sinh, sinh, 1.55, 1.00},
+            {"cosh", cosh, cosh, 2.48, 1.00},
+            {"tanh", tanh, tanh, 1.38, 2.00},
+            {"arcsinh", asinh, asinh, 1.01, 1.00},
+            {"arccosh", acosh, acosh, 1.16, 1.00},
+            {"arctanh", atanh, atanh, 1.45, 1.00},
+            {"cbrt", cbrt, cbrt, 1.94, 2.00},
+            //{"exp",exp,exp,3.76,1.00},
+            {"exp2", exp2, exp2, 1.01, 1.00},
+            {"expm1", expm1, expm1, 2.62, 1.00},
+            //{"log",log,log,1.84,1.00},
+            {"log10", log10, log10, 3.5, 1.00},
+            {"log1p", log1p, log1p, 1.96, 1.0},
+            {"log2", log2, log2, 2.12, 1.00},
+    };
+
+    for (int ii = 0; ii < umathfunc.size(); ++ii) {
+        // ignore sin/cos
+        if ((umathfunc[ii].name != "sin") && (umathfunc[ii].name != "cos")) {
+            std::string fileName =
+                    "umath-validation-set-" + umathfunc[ii].name + ".csv";
+            std::ofstream txtOut;
+            txtOut.open(fileName, std::ofstream::trunc);
+            txtOut << "dtype,input,output,ulperrortol" << std::endl;
+
+            // Single Precision
+            auto f32in = generate_input_vector<float>(umathfunc[ii].name);
+            auto f32out = computeTrueVal<float, double>(f32in,
+                                                        umathfunc[ii].f32func);
+            for (int jj = 0; jj < f32in.size(); ++jj) {
+                txtOut << "np.float32" << std::hex << ",0x"
+                       << *reinterpret_cast<uint32_t *>(&f32in[jj]) << ",0x"
+                       << *reinterpret_cast<uint32_t *>(&f32out[jj]) << ","
+                       << ceil(umathfunc[ii].f32ulp) << std::endl;
+            }
+
+            // Double Precision
+            auto f64in = generate_input_vector<double>(umathfunc[ii].name);
+            auto f64out = computeTrueVal<double, long double>(
+                    f64in, umathfunc[ii].f64func);
+            for (int jj = 0; jj < f64in.size(); ++jj) {
+                txtOut << "np.float64" << std::hex << ",0x"
+                       << *reinterpret_cast<uint64_t *>(&f64in[jj]) << ",0x"
+                       << *reinterpret_cast<uint64_t *>(&f64out[jj]) << ","
+                       << ceil(umathfunc[ii].f64ulp) << std::endl;
+            }
+            txtOut.close();
+        }
+    }
+    return 0;
+}
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/recarray_from_file.fits b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/recarray_from_file.fits
new file mode 100644
index 0000000000000000000000000000000000000000..ca48ee85153645a7510e201d574e9b119c089dce
Binary files /dev/null and b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/recarray_from_file.fits differ
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-README.txt b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-README.txt
new file mode 100644
index 0000000000000000000000000000000000000000..70ac062ef6999022d5f256d22d825af96f802e2e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-README.txt
@@ -0,0 +1,15 @@
+Steps to validate transcendental functions:
+1) Add a file 'umath-validation-set-<ufuncname>.txt', where ufuncname is name of
+   the function in NumPy you want to validate
+2) The file should contain 4 columns: dtype,input,expected output,ulperror
+    a. dtype: one of np.float16, np.float32, np.float64
+    b. input: floating point input to ufunc in hex. Example: 0x414570a4
+       represents 12.340000152587890625
+    c. expected output: floating point output for the corresponding input in hex.
+       This should be computed using a high(er) precision library and then rounded to
+       same format as the input.
+    d. ulperror: expected maximum ulp error of the function. This
+       should be same across all rows of the same dtype. Otherwise, the function is
+       tested for the maximum ulp error among all entries of that dtype.
+3) Add file umath-validation-set-<ufuncname>.txt to the test file test_umath_accuracy.py
+   which will then validate your ufunc.
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv
new file mode 100644
index 0000000000000000000000000000000000000000..da33e9c56d7026a73b12232008a6c334c36c0683
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv
@@ -0,0 +1,1429 @@
+dtype,input,output,ulperrortol
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+np.float32,0xbe32a20c,0x3fdf8182,3
+np.float32,0xbf607c09,0x4028f84f,3
+np.float32,0x3f25d906,0x3f5db544,3
+np.float32,0x3f01cec8,0x3f84febf,3
+np.float32,0x3f1d5c6e,0x3f68a735,3
+np.float32,0xbf0cab89,0x4009c36d,3
+np.float32,0xbf176b40,0x400d0941,3
+np.float32,0x3f3248b2,0x3f4ce6d4,3
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+np.float32,0xbf379a3c,0x4017b764,3
+np.float32,0xbeda6f2c,0x4000bd62,3
+np.float32,0xbf6a0c3f,0x402e5d5a,3
+np.float32,0x3ef1d700,0x3f8a17b7,3
+np.float32,0xbf6f4f65,0x4031d30d,3
+np.float32,0x3f2c9eee,0x3f54adfd,3
+np.float32,0x3f3cfb18,0x3f3d8a1e,3
+np.float32,0x3ba80800,0x3fc867d2,3
+np.float32,0x3e723b08,0x3faa7e4d,3
+np.float32,0xbf65820f,0x402bb054,3
+np.float32,0xbee64e7a,0x40026410,3
+np.float32,0x3cb15140,0x3fc64a87,3
+np.float32,0x3f193660,0x3f6ddf2a,3
+np.float32,0xbf0e5b52,0x400a44f7,3
+np.float32,0x3ed55f14,0x3f920a4b,3
+np.float32,0x3dd11a80,0x3fbbf85c,3
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arccosh.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arccosh.csv
new file mode 100644
index 0000000000000000000000000000000000000000..b37d3c1cc9bdfcde12ac792cf036272d93c925f0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arccosh.csv
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new file mode 100644
index 0000000000000000000000000000000000000000..bdbb1efcae43e9633576e4b53f5f865814f5922b
--- /dev/null
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arcsinh.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arcsinh.csv
new file mode 100644
index 0000000000000000000000000000000000000000..4618d3fdda28aa524593a24262a05925df99cd6d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arcsinh.csv
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new file mode 100644
index 0000000000000000000000000000000000000000..351b17252bdbe97da24199e15f505cab44ede5e2
--- /dev/null
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new file mode 100644
index 0000000000000000000000000000000000000000..d3467883b2105920bd6c0f8b5b438f0d536813ec
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-arctanh.csv
@@ -0,0 +1,1429 @@
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cbrt.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cbrt.csv
new file mode 100644
index 0000000000000000000000000000000000000000..3af29edf0535c5d659a586311c219269c4393254
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cbrt.csv
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+np.float64,0xbfc85dc45e30bb88,0xbfe2687b5518abde,2
+np.float64,0x3fd53b85212a770a,0x3fe6270d6d920d0f,2
+np.float64,0x800fc158927f82b1,0xaaa40e303239586f,2
+np.float64,0x11af5e98235ed,0x2a908b04a790083f,2
+np.float64,0xbfe2a097afe54130,0xbfeab80269eece99,2
+np.float64,0xbfd74ac588ae958c,0xbfe6d8ca3828d0b8,2
+np.float64,0xffea18ab2ef43156,0xd542d579ab31df1e,2
+np.float64,0xbfecda7058f9b4e1,0xbfeeea29c33b7913,2
+np.float64,0x3fc4ac56ed2958b0,0x3fe16d3e2bd7806d,2
+np.float64,0x3feccc898cb99913,0x3feee531f217dcfa,2
+np.float64,0xffeb3a64c5b674c9,0xd5431a30a41f0905,2
+np.float64,0x3fe5a7ee212b4fdc,0x3fec1844af9076fc,2
+np.float64,0x80080fdb52301fb7,0xaaa00a8b4274db67,2
+np.float64,0x800b3e7e47d67cfd,0xaaa1ec2876959852,2
+np.float64,0x80063fb8ee2c7f73,0xaa9d7875c9f20d6f,2
+np.float64,0x7fdacf80d0b59f01,0x553e2acede4c62a8,2
+np.float64,0x401e9b24803d4,0x2a996a0a75d0e093,2
+np.float64,0x3fe6c29505ed852a,0x3fec907a6d8c10af,2
+np.float64,0x8005c04ee2cb809f,0xaa9caa9813faef46,2
+np.float64,0xbfe1360f21e26c1e,0xbfea06155d6985b6,2
+np.float64,0xffc70606682e0c0c,0xd536c239b9d4be0a,2
+np.float64,0x800e639afefcc736,0xaaa37547d0229a26,2
+np.float64,0x3fe5589290aab125,0x3febf5c925c4e6db,2
+np.float64,0x8003b59330276b27,0xaa98c47e44524335,2
+np.float64,0x800d67ec22dacfd8,0xaaa301251b6a730a,2
+np.float64,0x7fdaeb5025b5d69f,0x553e35397dfe87eb,2
+np.float64,0x3fdae32a24b5c654,0x3fe7f771bc108f6c,2
+np.float64,0xffe6c1fc93ad83f8,0xd541fe6a6a716756,2
+np.float64,0xbfd7b9c1d32f7384,0xbfe6fcdae563d638,2
+np.float64,0x800e1bea06fc37d4,0xaaa354c0bf61449c,2
+np.float64,0xbfd78f097aaf1e12,0xbfe6ef068329bdf4,2
+np.float64,0x7fea6a400874d47f,0x5542e905978ad722,2
+np.float64,0x8008b4377cb1686f,0xaaa074c87eee29f9,2
+np.float64,0x8002f3fb8d45e7f8,0xaa96f47ac539b614,2
+np.float64,0xbfcf2b3fd13e5680,0xbfe3fb91c0cc66ad,2
+np.float64,0xffecca2f5279945e,0xd54375f361075927,2
+np.float64,0x7ff0000000000000,0x7ff0000000000000,2
+np.float64,0x7f84d5a5a029ab4a,0x552178d1d4e8640e,2
+np.float64,0x3fea8a4b64351497,0x3fee10c332440eb2,2
+np.float64,0x800fe01ac1dfc036,0xaaa41b34d91a4bee,2
+np.float64,0x3fc0b3d8872167b1,0x3fe03b178d354f8d,2
+np.float64,0x5ee8b0acbdd17,0x2a9cf69f2e317729,2
+np.float64,0x8006ef0407adde09,0xaa9e82888f3dd83e,2
+np.float64,0x7fdbb08a07b76113,0x553e7e4e35b938b9,2
+np.float64,0x49663f9c92cc9,0x2a9a95e0affe5108,2
+np.float64,0x7fd9b87e79b370fc,0x553dc0b5cff3dc7d,2
+np.float64,0xbfd86ae657b0d5cc,0xbfe73584d02bdd2b,2
+np.float64,0x3fd4d4a13729a942,0x3fe6030a962aaaf8,2
+np.float64,0x7fcc246bcb3848d7,0x5538557309449bba,2
+np.float64,0xbfdc86a7d5b90d50,0xbfe871a2983c2a29,2
+np.float64,0xd2a6e995a54dd,0x2aa2e3e9c0fdd6c0,2
+np.float64,0x3f92eb447825d680,0x3fd0eb4fd2ba16d2,2
+np.float64,0x800d4001697a8003,0xaaa2ee358661b75c,2
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+np.float64,0xbfed831ed6fb063e,0xbfef25f462a336f1,2
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+np.float64,0xbfe71c4ff76e38a0,0xbfecb5d32e789771,2
+np.float64,0xbfe35fb7b166bf70,0xbfeb12328e75ee6b,2
+np.float64,0x458e1a3a8b1c4,0x2a9a1cebadc81342,2
+np.float64,0x8003c1b3ad478368,0xaa98df5ed060b28c,2
+np.float64,0x7ff4000000000000,0x7ffc000000000000,2
+np.float64,0x7fe17098c162e131,0x5540775a9a3a104f,2
+np.float64,0xbfd95cb71732b96e,0xbfe7812acf7ea511,2
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+np.float64,0xbfde0e7d9ebc1cfc,0xbfe8df9ca9e49a5b,2
+np.float64,0xffef4f67143e9ecd,0xd5440348a6a2f231,2
+np.float64,0x7fe37d23c826fa47,0x5541165de17caa03,2
+np.float64,0xbfcc0e5f85381cc0,0xbfe34b44b0deefe9,2
+np.float64,0x3fe858f1c470b1e4,0x3fed36ab90557d89,2
+np.float64,0x800e857278fd0ae5,0xaaa3847d13220545,2
+np.float64,0x3febd31a66f7a635,0x3fee8af90e66b043,2
+np.float64,0x7fd3fde1b127fbc2,0x553b5b186a49b968,2
+np.float64,0x3fd3dabb8b27b577,0x3fe5a99b446bed26,2
+np.float64,0xffeb4500f1768a01,0xd5431cab828e254a,2
+np.float64,0xffccca8fc6399520,0xd53884f8b505e79e,2
+np.float64,0xffeee9406b7dd280,0xd543ed6d27a1a899,2
+np.float64,0xffecdde0f0f9bbc1,0xd5437a6258b14092,2
+np.float64,0xe6b54005cd6a8,0x2aa378c25938dfda,2
+np.float64,0x7fe610f1022c21e1,0x5541cf460b972925,2
+np.float64,0xbfe5a170ec6b42e2,0xbfec1576081e3232,2
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cos.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cos.csv
new file mode 100644
index 0000000000000000000000000000000000000000..5f7a951648a4fbd8dd4d17debff57e4adf6220e9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cos.csv
@@ -0,0 +1,1375 @@
+dtype,input,output,ulperrortol
+## +ve denormals ##
+np.float32,0x004b4716,0x3f800000,2
+np.float32,0x007b2490,0x3f800000,2
+np.float32,0x007c99fa,0x3f800000,2
+np.float32,0x00734a0c,0x3f800000,2
+np.float32,0x0070de24,0x3f800000,2
+np.float32,0x007fffff,0x3f800000,2
+np.float32,0x00000001,0x3f800000,2
+## -ve denormals ##
+np.float32,0x80495d65,0x3f800000,2
+np.float32,0x806894f6,0x3f800000,2
+np.float32,0x80555a76,0x3f800000,2
+np.float32,0x804e1fb8,0x3f800000,2
+np.float32,0x80687de9,0x3f800000,2
+np.float32,0x807fffff,0x3f800000,2
+np.float32,0x80000001,0x3f800000,2
+## +/-0.0f, +/-FLT_MIN +/-FLT_MAX ##
+np.float32,0x00000000,0x3f800000,2
+np.float32,0x80000000,0x3f800000,2
+np.float32,0x00800000,0x3f800000,2
+np.float32,0x80800000,0x3f800000,2
+## 1.00f + 0x00000001 ##
+np.float32,0x3f800000,0x3f0a5140,2
+np.float32,0x3f800001,0x3f0a513f,2
+np.float32,0x3f800002,0x3f0a513d,2
+np.float32,0xc090a8b0,0xbe4332ce,2
+np.float32,0x41ce3184,0x3f4d1de1,2
+np.float32,0xc1d85848,0xbeaa8980,2
+np.float32,0x402b8820,0xbf653aa3,2
+np.float32,0x42b4e454,0xbf4a338b,2
+np.float32,0x42a67a60,0x3c58202e,2
+np.float32,0x41d92388,0xbed987c7,2
+np.float32,0x422dd66c,0x3f5dcab3,2
+np.float32,0xc28f5be6,0xbf5688d8,2
+np.float32,0x41ab2674,0xbf53aa3b,2
+np.float32,0x3f490fdb,0x3f3504f3,2
+np.float32,0xbf490fdb,0x3f3504f3,2
+np.float32,0x3fc90fdb,0xb33bbd2e,2
+np.float32,0xbfc90fdb,0xb33bbd2e,2
+np.float32,0x40490fdb,0xbf800000,2
+np.float32,0xc0490fdb,0xbf800000,2
+np.float32,0x3fc90fdb,0xb33bbd2e,2
+np.float32,0xbfc90fdb,0xb33bbd2e,2
+np.float32,0x40490fdb,0xbf800000,2
+np.float32,0xc0490fdb,0xbf800000,2
+np.float32,0x40c90fdb,0x3f800000,2
+np.float32,0xc0c90fdb,0x3f800000,2
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+np.float32,0xc116cbe4,0xbf800000,2
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+np.float32,0xc0490fdb,0xbf800000,2
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+np.float32,0x41490fdb,0x3f800000,2
+np.float32,0xc1490fdb,0x3f800000,2
+np.float32,0x407b53d2,0xbf3504f1,2
+np.float32,0xc07b53d2,0xbf3504f1,2
+np.float32,0x40fb53d2,0xb4b5563d,2
+np.float32,0xc0fb53d2,0xb4b5563d,2
+np.float32,0x417b53d2,0xbf800000,2
+np.float32,0xc17b53d2,0xbf800000,2
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+np.float32,0xc116cbe4,0xbf800000,2
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+np.float32,0x412fede0,0x353222c4,2
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+np.float32,0xc216cbe4,0x3f800000,2
+np.float32,0x41235ce2,0xbf3504ef,2
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cosh.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cosh.csv
new file mode 100644
index 0000000000000000000000000000000000000000..eea28656546e5a3ee521d7ba4a52111c38b353f2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-cosh.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-exp.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-exp.csv
new file mode 100644
index 0000000000000000000000000000000000000000..97379247a42a9fa0f4df422dab49be5b81e3d39b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-exp.csv
@@ -0,0 +1,412 @@
+dtype,input,output,ulperrortol
+## +ve denormals ##
+np.float32,0x004b4716,0x3f800000,3
+np.float32,0x007b2490,0x3f800000,3
+np.float32,0x007c99fa,0x3f800000,3
+np.float32,0x00734a0c,0x3f800000,3
+np.float32,0x0070de24,0x3f800000,3
+np.float32,0x00495d65,0x3f800000,3
+np.float32,0x006894f6,0x3f800000,3
+np.float32,0x00555a76,0x3f800000,3
+np.float32,0x004e1fb8,0x3f800000,3
+np.float32,0x00687de9,0x3f800000,3
+## -ve denormals ##
+np.float32,0x805b59af,0x3f800000,3
+np.float32,0x807ed8ed,0x3f800000,3
+np.float32,0x807142ad,0x3f800000,3
+np.float32,0x80772002,0x3f800000,3
+np.float32,0x8062abcb,0x3f800000,3
+np.float32,0x8045e31c,0x3f800000,3
+np.float32,0x805f01c2,0x3f800000,3
+np.float32,0x80506432,0x3f800000,3
+np.float32,0x8060089d,0x3f800000,3
+np.float32,0x8071292f,0x3f800000,3
+## floats that output a denormal ##
+np.float32,0xc2cf3fc1,0x00000001,3
+np.float32,0xc2c79726,0x00000021,3
+np.float32,0xc2cb295d,0x00000005,3
+np.float32,0xc2b49e6b,0x00068c4c,3
+np.float32,0xc2ca8116,0x00000008,3
+np.float32,0xc2c23f82,0x000001d7,3
+np.float32,0xc2cb69c0,0x00000005,3
+np.float32,0xc2cc1f4d,0x00000003,3
+np.float32,0xc2ae094e,0x00affc4c,3
+np.float32,0xc2c86c44,0x00000015,3
+## random floats between -87.0f and 88.0f ##
+np.float32,0x4030d7e0,0x417d9a05,3
+np.float32,0x426f60e8,0x6aa1be2c,3
+np.float32,0x41a1b220,0x4e0efc11,3
+np.float32,0xc20cc722,0x26159da7,3
+np.float32,0x41c492bc,0x512ec79d,3
+np.float32,0x40980210,0x42e73a0e,3
+np.float32,0xbf1f7b80,0x3f094de3,3
+np.float32,0x42a678a4,0x7b87a383,3
+np.float32,0xc20f3cfd,0x25a1c304,3
+np.float32,0x423ff34c,0x6216467f,3
+np.float32,0x00000000,0x3f800000,3
+## floats that cause an overflow ##
+np.float32,0x7f06d8c1,0x7f800000,3
+np.float32,0x7f451912,0x7f800000,3
+np.float32,0x7ecceac3,0x7f800000,3
+np.float32,0x7f643b45,0x7f800000,3
+np.float32,0x7e910ea0,0x7f800000,3
+np.float32,0x7eb4756b,0x7f800000,3
+np.float32,0x7f4ec708,0x7f800000,3
+np.float32,0x7f6b4551,0x7f800000,3
+np.float32,0x7d8edbda,0x7f800000,3
+np.float32,0x7f730718,0x7f800000,3
+np.float32,0x42b17217,0x7f7fff84,3
+np.float32,0x42b17218,0x7f800000,3
+np.float32,0x42b17219,0x7f800000,3
+np.float32,0xfef2b0bc,0x00000000,3
+np.float32,0xff69f83e,0x00000000,3
+np.float32,0xff4ecb12,0x00000000,3
+np.float32,0xfeac6d86,0x00000000,3
+np.float32,0xfde0cdb8,0x00000000,3
+np.float32,0xff26aef4,0x00000000,3
+np.float32,0xff6f9277,0x00000000,3
+np.float32,0xff7adfc4,0x00000000,3
+np.float32,0xff0ad40e,0x00000000,3
+np.float32,0xff6fd8f3,0x00000000,3
+np.float32,0xc2cff1b4,0x00000001,3
+np.float32,0xc2cff1b5,0x00000000,3
+np.float32,0xc2cff1b6,0x00000000,3
+np.float32,0x7f800000,0x7f800000,3
+np.float32,0xff800000,0x00000000,3
+np.float32,0x4292f27c,0x7480000a,3
+np.float32,0x42a920be,0x7c7fff94,3
+np.float32,0x41c214c9,0x50ffffd9,3
+np.float32,0x41abe686,0x4effffd9,3
+np.float32,0x4287db5a,0x707fffd3,3
+np.float32,0x41902cbb,0x4c800078,3
+np.float32,0x42609466,0x67ffffeb,3
+np.float32,0x41a65af5,0x4e7fffd1,3
+np.float32,0x417f13ff,0x4affffc9,3
+np.float32,0x426d0e6c,0x6a3504f2,3
+np.float32,0x41bc8934,0x507fff51,3
+np.float32,0x42a7bdde,0x7c0000d6,3
+np.float32,0x4120cf66,0x46b504f6,3
+np.float32,0x4244da8f,0x62ffff1a,3
+np.float32,0x41a0cf69,0x4e000034,3
+np.float32,0x41cd2bec,0x52000005,3
+np.float32,0x42893e41,0x7100009e,3
+np.float32,0x41b437e1,0x4fb50502,3
+np.float32,0x41d8430f,0x5300001d,3
+np.float32,0x4244da92,0x62ffffda,3
+np.float32,0x41a0cf63,0x4dffffa9,3
+np.float32,0x3eb17218,0x3fb504f3,3
+np.float32,0x428729e8,0x703504dc,3
+np.float32,0x41a0cf67,0x4e000014,3
+np.float32,0x4252b77d,0x65800011,3
+np.float32,0x41902cb9,0x4c800058,3
+np.float32,0x42a0cf67,0x79800052,3
+np.float32,0x4152b77b,0x48ffffe9,3
+np.float32,0x41265af3,0x46ffffc8,3
+np.float32,0x42187e0b,0x5affff9a,3
+np.float32,0xc0d2b77c,0x3ab504f6,3
+np.float32,0xc283b2ac,0x10000072,3
+np.float32,0xc1cff1b4,0x2cb504f5,3
+np.float32,0xc05dce9e,0x3d000000,3
+np.float32,0xc28ec9d2,0x0bfffea5,3
+np.float32,0xc23c893a,0x1d7fffde,3
+np.float32,0xc2a920c0,0x027fff6c,3
+np.float32,0xc1f9886f,0x2900002b,3
+np.float32,0xc2c42920,0x000000b5,3
+np.float32,0xc2893e41,0x0dfffec5,3
+np.float32,0xc2c4da93,0x00000080,3
+np.float32,0xc17f1401,0x3400000c,3
+np.float32,0xc1902cb6,0x327fffaf,3
+np.float32,0xc27c4e3b,0x11ffffc5,3
+np.float32,0xc268e5c5,0x157ffe9d,3
+np.float32,0xc2b4e953,0x0005a826,3
+np.float32,0xc287db5a,0x0e800016,3
+np.float32,0xc207db5a,0x2700000b,3
+np.float32,0xc2b2d4fe,0x000ffff1,3
+np.float32,0xc268e5c0,0x157fffdd,3
+np.float32,0xc22920bd,0x2100003b,3
+np.float32,0xc2902caf,0x0b80011e,3
+np.float32,0xc1902cba,0x327fff2f,3
+np.float32,0xc2ca6625,0x00000008,3
+np.float32,0xc280ece8,0x10fffeb5,3
+np.float32,0xc2918f94,0x0b0000ea,3
+np.float32,0xc29b43d5,0x077ffffc,3
+np.float32,0xc1e61ff7,0x2ab504f5,3
+np.float32,0xc2867878,0x0effff15,3
+np.float32,0xc2a2324a,0x04fffff4,3
+#float64
+## near zero ##
+np.float64,0x8000000000000000,0x3ff0000000000000,1
+np.float64,0x8010000000000000,0x3ff0000000000000,1
+np.float64,0x8000000000000001,0x3ff0000000000000,1
+np.float64,0x8360000000000000,0x3ff0000000000000,1
+np.float64,0x9a70000000000000,0x3ff0000000000000,1
+np.float64,0xb9b0000000000000,0x3ff0000000000000,1
+np.float64,0xb810000000000000,0x3ff0000000000000,1
+np.float64,0xbc30000000000000,0x3ff0000000000000,1
+np.float64,0xb6a0000000000000,0x3ff0000000000000,1
+np.float64,0x0000000000000000,0x3ff0000000000000,1
+np.float64,0x0010000000000000,0x3ff0000000000000,1
+np.float64,0x0000000000000001,0x3ff0000000000000,1
+np.float64,0x0360000000000000,0x3ff0000000000000,1
+np.float64,0x1a70000000000000,0x3ff0000000000000,1
+np.float64,0x3c30000000000000,0x3ff0000000000000,1
+np.float64,0x36a0000000000000,0x3ff0000000000000,1
+np.float64,0x39b0000000000000,0x3ff0000000000000,1
+np.float64,0x3810000000000000,0x3ff0000000000000,1
+## underflow ##
+np.float64,0xc0c6276800000000,0x0000000000000000,1
+np.float64,0xc0c62d918ce2421d,0x0000000000000000,1
+np.float64,0xc0c62d918ce2421e,0x0000000000000000,1
+np.float64,0xc0c62d91a0000000,0x0000000000000000,1
+np.float64,0xc0c62d9180000000,0x0000000000000000,1
+np.float64,0xc0c62dea45ee3e06,0x0000000000000000,1
+np.float64,0xc0c62dea45ee3e07,0x0000000000000000,1
+np.float64,0xc0c62dea40000000,0x0000000000000000,1
+np.float64,0xc0c62dea60000000,0x0000000000000000,1
+np.float64,0xc0875f1120000000,0x0000000000000000,1
+np.float64,0xc0875f113c30b1c8,0x0000000000000000,1
+np.float64,0xc0875f1140000000,0x0000000000000000,1
+np.float64,0xc093480000000000,0x0000000000000000,1
+np.float64,0xffefffffffffffff,0x0000000000000000,1
+np.float64,0xc7efffffe0000000,0x0000000000000000,1
+## overflow ##
+np.float64,0x40862e52fefa39ef,0x7ff0000000000000,1
+np.float64,0x40872e42fefa39ef,0x7ff0000000000000,1
+## +/- INF, +/- NAN ##
+np.float64,0x7ff0000000000000,0x7ff0000000000000,1
+np.float64,0xfff0000000000000,0x0000000000000000,1
+np.float64,0x7ff8000000000000,0x7ff8000000000000,1
+np.float64,0xfff8000000000000,0xfff8000000000000,1
+## output denormal ##
+np.float64,0xc087438520000000,0x0000000000000001,1
+np.float64,0xc08743853f2f4461,0x0000000000000001,1
+np.float64,0xc08743853f2f4460,0x0000000000000001,1
+np.float64,0xc087438540000000,0x0000000000000001,1
+## between -745.13321910 and 709.78271289 ##
+np.float64,0xbff760cd14774bd9,0x3fcdb14ced00ceb6,1
+np.float64,0xbff760cd20000000,0x3fcdb14cd7993879,1
+np.float64,0xbff760cd00000000,0x3fcdb14d12fbd264,1
+np.float64,0xc07f1cf360000000,0x130c1b369af14fda,1
+np.float64,0xbeb0000000000000,0x3feffffe00001000,1
+np.float64,0xbd70000000000000,0x3fefffffffffe000,1
+np.float64,0xc084fd46e5c84952,0x0360000000000139,1
+np.float64,0xc084fd46e5c84953,0x035ffffffffffe71,1
+np.float64,0xc084fd46e0000000,0x0360000b9096d32c,1
+np.float64,0xc084fd4700000000,0x035fff9721d12104,1
+np.float64,0xc086232bc0000000,0x0010003af5e64635,1
+np.float64,0xc086232bdd7abcd2,0x001000000000007c,1
+np.float64,0xc086232bdd7abcd3,0x000ffffffffffe7c,1
+np.float64,0xc086232be0000000,0x000ffffaf57a6fc9,1
+np.float64,0xc086233920000000,0x000fe590e3b45eb0,1
+np.float64,0xc086233938000000,0x000fe56133493c57,1
+np.float64,0xc086233940000000,0x000fe5514deffbbc,1
+np.float64,0xc086234c98000000,0x000fbf1024c32ccb,1
+np.float64,0xc086234ca0000000,0x000fbf0065bae78d,1
+np.float64,0xc086234c80000000,0x000fbf3f623a7724,1
+np.float64,0xc086234ec0000000,0x000fbad237c846f9,1
+np.float64,0xc086234ec8000000,0x000fbac27cfdec97,1
+np.float64,0xc086234ee0000000,0x000fba934cfd3dc2,1
+np.float64,0xc086234ef0000000,0x000fba73d7f618d9,1
+np.float64,0xc086234f00000000,0x000fba54632dddc0,1
+np.float64,0xc0862356e0000000,0x000faae0945b761a,1
+np.float64,0xc0862356f0000000,0x000faac13eb9a310,1
+np.float64,0xc086235700000000,0x000faaa1e9567b0a,1
+np.float64,0xc086236020000000,0x000f98cd75c11ed7,1
+np.float64,0xc086236ca0000000,0x000f8081b4d93f89,1
+np.float64,0xc086236cb0000000,0x000f8062b3f4d6c5,1
+np.float64,0xc086236cc0000000,0x000f8043b34e6f8c,1
+np.float64,0xc086238d98000000,0x000f41220d9b0d2c,1
+np.float64,0xc086238da0000000,0x000f4112cc80a01f,1
+np.float64,0xc086238d80000000,0x000f414fd145db5b,1
+np.float64,0xc08624fd00000000,0x000cbfce8ea1e6c4,1
+np.float64,0xc086256080000000,0x000c250747fcd46e,1
+np.float64,0xc08626c480000000,0x000a34f4bd975193,1
+np.float64,0xbf50000000000000,0x3feff800ffeaac00,1
+np.float64,0xbe10000000000000,0x3fefffffff800000,1
+np.float64,0xbcd0000000000000,0x3feffffffffffff8,1
+np.float64,0xc055d589e0000000,0x38100004bf94f63e,1
+np.float64,0xc055d58a00000000,0x380ffff97f292ce8,1
+np.float64,0xbfd962d900000000,0x3fe585a4b00110e1,1
+np.float64,0x3ff4bed280000000,0x400d411e7a58a303,1
+np.float64,0x3fff0b3620000000,0x401bd7737ffffcf3,1
+np.float64,0x3ff0000000000000,0x4005bf0a8b145769,1
+np.float64,0x3eb0000000000000,0x3ff0000100000800,1
+np.float64,0x3d70000000000000,0x3ff0000000001000,1
+np.float64,0x40862e42e0000000,0x7fefff841808287f,1
+np.float64,0x40862e42fefa39ef,0x7fefffffffffff2a,1
+np.float64,0x40862e0000000000,0x7feef85a11e73f2d,1
+np.float64,0x4000000000000000,0x401d8e64b8d4ddae,1
+np.float64,0x4009242920000000,0x40372a52c383a488,1
+np.float64,0x4049000000000000,0x44719103e4080b45,1
+np.float64,0x4008000000000000,0x403415e5bf6fb106,1
+np.float64,0x3f50000000000000,0x3ff00400800aab55,1
+np.float64,0x3e10000000000000,0x3ff0000000400000,1
+np.float64,0x3cd0000000000000,0x3ff0000000000004,1
+np.float64,0x40562e40a0000000,0x47effed088821c3f,1
+np.float64,0x40562e42e0000000,0x47effff082e6c7ff,1
+np.float64,0x40562e4300000000,0x47f00000417184b8,1
+np.float64,0x3fe8000000000000,0x4000ef9db467dcf8,1
+np.float64,0x402b12e8d4f33589,0x412718f68c71a6fe,1
+np.float64,0x402b12e8d4f3358a,0x412718f68c71a70a,1
+np.float64,0x402b12e8c0000000,0x412718f59a7f472e,1
+np.float64,0x402b12e8e0000000,0x412718f70c0eac62,1
+##use 1th entry
+np.float64,0x40631659AE147CB4,0x4db3a95025a4890f,1
+np.float64,0xC061B87D2E85A4E2,0x332640c8e2de2c51,1
+np.float64,0x405A4A50BE243AF4,0x496a45e4b7f0339a,1
+np.float64,0xC0839898B98EC5C6,0x0764027828830df4,1
+#use 2th entry
+np.float64,0xC072428C44B6537C,0x2596ade838b96f3e,1
+np.float64,0xC053057C5E1AE9BF,0x3912c8fad18fdadf,1
+np.float64,0x407E89C78328BAA3,0x6bfe35d5b9a1a194,1
+np.float64,0x4083501B6DD87112,0x77a855503a38924e,1
+#use 3th entry
+np.float64,0x40832C6195F24540,0x7741e73c80e5eb2f,1
+np.float64,0xC083D4CD557C2EC9,0x06b61727c2d2508e,1
+np.float64,0x400C48F5F67C99BD,0x404128820f02b92e,1
+np.float64,0x4056E36D9B2DF26A,0x4830f52ff34a8242,1
+#use 4th entry
+np.float64,0x4080FF700D8CBD06,0x70fa70df9bc30f20,1
+np.float64,0x406C276D39E53328,0x543eb8e20a8f4741,1
+np.float64,0xC070D6159BBD8716,0x27a4a0548c904a75,1
+np.float64,0xC052EBCF8ED61F83,0x391c0e92368d15e4,1
+#use 5th entry
+np.float64,0xC061F892A8AC5FBE,0x32f807a89efd3869,1
+np.float64,0x4021D885D2DBA085,0x40bd4dc86d3e3270,1
+np.float64,0x40767AEEEE7D4FCF,0x605e22851ee2afb7,1
+np.float64,0xC0757C5D75D08C80,0x20f0751599b992a2,1
+#use 6th entry
+np.float64,0x405ACF7A284C4CE3,0x499a4e0b7a27027c,1
+np.float64,0xC085A6C9E80D7AF5,0x0175914009d62ec2,1
+np.float64,0xC07E4C02F86F1DAE,0x1439269b29a9231e,1
+np.float64,0x4080D80F9691CC87,0x7088a6cdafb041de,1
+#use 7th entry
+np.float64,0x407FDFD84FBA0AC1,0x6deb1ae6f9bc4767,1
+np.float64,0x40630C06A1A2213D,0x4dac7a9d51a838b7,1
+np.float64,0x40685FDB30BB8B4F,0x5183f5cc2cac9e79,1
+np.float64,0x408045A2208F77F4,0x6ee299e08e2aa2f0,1
+#use 8th entry
+np.float64,0xC08104E391F5078B,0x0ed397b7cbfbd230,1
+np.float64,0xC031501CAEFAE395,0x3e6040fd1ea35085,1
+np.float64,0xC079229124F6247C,0x1babf4f923306b1e,1
+np.float64,0x407FB65F44600435,0x6db03beaf2512b8a,1
+#use 9th entry
+np.float64,0xC07EDEE8E8E8A5AC,0x136536cec9cbef48,1
+np.float64,0x4072BB4086099A14,0x5af4d3c3008b56cc,1
+np.float64,0x4050442A2EC42CB4,0x45cd393bd8fad357,1
+np.float64,0xC06AC28FB3D419B4,0x2ca1b9d3437df85f,1
+#use 10th entry
+np.float64,0x40567FC6F0A68076,0x480c977fd5f3122e,1
+np.float64,0x40620A2F7EDA59BB,0x4cf278e96f4ce4d7,1
+np.float64,0xC085044707CD557C,0x034aad6c968a045a,1
+np.float64,0xC07374EA5AC516AA,0x23dd6afdc03e83d5,1
+#use 11th entry
+np.float64,0x4073CC95332619C1,0x5c804b1498bbaa54,1
+np.float64,0xC0799FEBBE257F31,0x1af6a954c43b87d2,1
+np.float64,0x408159F19EA424F6,0x7200858efcbfc84d,1
+np.float64,0x404A81F6F24C0792,0x44b664a07ce5bbfa,1
+#use 12th entry
+np.float64,0x40295FF1EFB9A741,0x4113c0e74c52d7b0,1
+np.float64,0x4073975F4CC411DA,0x5c32be40b4fec2c1,1
+np.float64,0x406E9DE52E82A77E,0x56049c9a3f1ae089,1
+np.float64,0x40748C2F52560ED9,0x5d93bc14fd4cd23b,1
+#use 13th entry
+np.float64,0x4062A553CDC4D04C,0x4d6266bfde301318,1
+np.float64,0xC079EC1D63598AB7,0x1a88cb184dab224c,1
+np.float64,0xC0725C1CB3167427,0x25725b46f8a081f6,1
+np.float64,0x407888771D9B45F9,0x6353b1ec6bd7ce80,1
+#use 14th entry
+np.float64,0xC082CBA03AA89807,0x09b383723831ce56,1
+np.float64,0xC083A8961BB67DD7,0x0735b118d5275552,1
+np.float64,0xC076BC6ECA12E7E3,0x1f2222679eaef615,1
+np.float64,0xC072752503AA1A5B,0x254eb832242c77e1,1
+#use 15th entry
+np.float64,0xC058800792125DEC,0x371882372a0b48d4,1
+np.float64,0x4082909FD863E81C,0x7580d5f386920142,1
+np.float64,0xC071616F8FB534F9,0x26dbe20ef64a412b,1
+np.float64,0x406D1AB571CAA747,0x54ee0d55cb38ac20,1
+#use 16th entry
+np.float64,0x406956428B7DAD09,0x52358682c271237f,1
+np.float64,0xC07EFC2D9D17B621,0x133b3e77c27a4d45,1
+np.float64,0xC08469BAC5BA3CCA,0x050863e5f42cc52f,1
+np.float64,0x407189D9626386A5,0x593cb1c0b3b5c1d3,1
+#use 17th entry
+np.float64,0x4077E652E3DEB8C6,0x6269a10dcbd3c752,1
+np.float64,0x407674C97DB06878,0x605485dcc2426ec2,1
+np.float64,0xC07CE9969CF4268D,0x16386cf8996669f2,1
+np.float64,0x40780EE32D5847C4,0x62a436bd1abe108d,1
+#use 18th entry
+np.float64,0x4076C3AA5E1E8DA1,0x60c62f56a5e72e24,1
+np.float64,0xC0730AFC7239B9BE,0x24758ead095cec1e,1
+np.float64,0xC085CC2B9C420DDB,0x0109cdaa2e5694c1,1
+np.float64,0x406D0765CB6D7AA4,0x54e06f8dd91bd945,1
+#use 19th entry
+np.float64,0xC082D011F3B495E7,0x09a6647661d279c2,1
+np.float64,0xC072826AF8F6AFBC,0x253acd3cd224507e,1
+np.float64,0x404EB9C4810CEA09,0x457933dbf07e8133,1
+np.float64,0x408284FBC97C58CE,0x755f6eb234aa4b98,1
+#use 20th entry
+np.float64,0x40856008CF6EDC63,0x7d9c0b3c03f4f73c,1
+np.float64,0xC077CB2E9F013B17,0x1d9b3d3a166a55db,1
+np.float64,0xC0479CA3C20AD057,0x3bad40e081555b99,1
+np.float64,0x40844CD31107332A,0x7a821d70aea478e2,1
+#use 21th entry
+np.float64,0xC07C8FCC0BFCC844,0x16ba1cc8c539d19b,1
+np.float64,0xC085C4E9A3ABA488,0x011ff675ba1a2217,1
+np.float64,0x4074D538B32966E5,0x5dfd9d78043c6ad9,1
+np.float64,0xC0630CA16902AD46,0x3231a446074cede6,1
+#use 22th entry
+np.float64,0xC06C826733D7D0B7,0x2b5f1078314d41e1,1
+np.float64,0xC0520DF55B2B907F,0x396c13a6ce8e833e,1
+np.float64,0xC080712072B0F437,0x107eae02d11d98ea,1
+np.float64,0x40528A6150E19EFB,0x469fdabda02228c5,1
+#use 23th entry
+np.float64,0xC07B1D74B6586451,0x18d1253883ae3b48,1
+np.float64,0x4045AFD7867DAEC0,0x43d7d634fc4c5d98,1
+np.float64,0xC07A08B91F9ED3E2,0x1a60973e6397fc37,1
+np.float64,0x407B3ECF0AE21C8C,0x673e03e9d98d7235,1
+#use 24th entry
+np.float64,0xC078AEB6F30CEABF,0x1c530b93ab54a1b3,1
+np.float64,0x4084495006A41672,0x7a775b6dc7e63064,1
+np.float64,0x40830B1C0EBF95DD,0x76e1e6eed77cfb89,1
+np.float64,0x407D93E8F33D8470,0x6a9adbc9e1e4f1e5,1
+#use 25th entry
+np.float64,0x4066B11A09EFD9E8,0x504dd528065c28a7,1
+np.float64,0x408545823723AEEB,0x7d504a9b1844f594,1
+np.float64,0xC068C711F2CA3362,0x2e104f3496ea118e,1
+np.float64,0x407F317FCC3CA873,0x6cf0732c9948ebf4,1
+#use 26th entry
+np.float64,0x407AFB3EBA2ED50F,0x66dc28a129c868d5,1
+np.float64,0xC075377037708ADE,0x21531a329f3d793e,1
+np.float64,0xC07C30066A1F3246,0x174448baa16ded2b,1
+np.float64,0xC06689A75DE2ABD3,0x2fad70662fae230b,1
+#use 27th entry
+np.float64,0x4081514E9FCCF1E0,0x71e673b9efd15f44,1
+np.float64,0xC0762C710AF68460,0x1ff1ed7d8947fe43,1
+np.float64,0xC0468102FF70D9C4,0x3be0c3a8ff3419a3,1
+np.float64,0xC07EA4CEEF02A83E,0x13b908f085102c61,1
+#use 28th entry
+np.float64,0xC06290B04AE823C4,0x328a83da3c2e3351,1
+np.float64,0xC0770EB1D1C395FB,0x1eab281c1f1db5fe,1
+np.float64,0xC06F5D4D838A5BAE,0x29500ea32fb474ea,1
+np.float64,0x40723B3133B54C5D,0x5a3c82c7c3a2b848,1
+#use 29th entry
+np.float64,0x4085E6454CE3B4AA,0x7f20319b9638d06a,1
+np.float64,0x408389F2A0585D4B,0x7850667c58aab3d0,1
+np.float64,0xC0382798F9C8AE69,0x3dc1c79fe8739d6d,1
+np.float64,0xC08299D827608418,0x0a4335f76cdbaeb5,1
+#use 30th entry
+np.float64,0xC06F3DED43301BF1,0x2965670ae46750a8,1
+np.float64,0xC070CAF6BDD577D9,0x27b4aa4ffdd29981,1
+np.float64,0x4078529AD4B2D9F2,0x6305c12755d5e0a6,1
+np.float64,0xC055B14E75A31B96,0x381c2eda6d111e5d,1
+#use 31th entry
+np.float64,0x407B13EE414FA931,0x6700772c7544564d,1
+np.float64,0x407EAFDE9DE3EC54,0x6c346a0e49724a3c,1
+np.float64,0xC08362F398B9530D,0x07ffeddbadf980cb,1
+np.float64,0x407E865CDD9EEB86,0x6bf866cac5e0d126,1
+#use 32th entry
+np.float64,0x407FB62DBC794C86,0x6db009f708ac62cb,1
+np.float64,0xC063D0BAA68CDDDE,0x31a3b2a51ce50430,1
+np.float64,0xC05E7706A2231394,0x34f24bead6fab5c9,1
+np.float64,0x4083E3A06FDE444E,0x79527b7a386d1937,1
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-exp2.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-exp2.csv
new file mode 100644
index 0000000000000000000000000000000000000000..8734a703bf0e2c518e7dd76e0864b38234cb92d5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-exp2.csv
@@ -0,0 +1,1429 @@
+dtype,input,output,ulperrortol
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-expm1.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-expm1.csv
new file mode 100644
index 0000000000000000000000000000000000000000..527dfddbc6cf54226d7e0349121d2940aef69d9b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-expm1.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log.csv
new file mode 100644
index 0000000000000000000000000000000000000000..d4dafe86c4534e256860aab7dd2814e268c82321
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log.csv
@@ -0,0 +1,271 @@
+dtype,input,output,ulperrortol
+## +ve denormals ##
+np.float32,0x004b4716,0xc2afbc1b,4
+np.float32,0x007b2490,0xc2aec01e,4
+np.float32,0x007c99fa,0xc2aeba17,4
+np.float32,0x00734a0c,0xc2aee1dc,4
+np.float32,0x0070de24,0xc2aeecba,4
+np.float32,0x007fffff,0xc2aeac50,4
+np.float32,0x00000001,0xc2ce8ed0,4
+## -ve denormals ##
+np.float32,0x80495d65,0xffc00000,4
+np.float32,0x806894f6,0xffc00000,4
+np.float32,0x80555a76,0xffc00000,4
+np.float32,0x804e1fb8,0xffc00000,4
+np.float32,0x80687de9,0xffc00000,4
+np.float32,0x807fffff,0xffc00000,4
+np.float32,0x80000001,0xffc00000,4
+## +/-0.0f, +/-FLT_MIN +/-FLT_MAX ##
+np.float32,0x00000000,0xff800000,4
+np.float32,0x80000000,0xff800000,4
+np.float32,0x7f7fffff,0x42b17218,4
+np.float32,0x80800000,0xffc00000,4
+np.float32,0xff7fffff,0xffc00000,4
+## 1.00f + 0x00000001 ##
+np.float32,0x3f800000,0x00000000,4
+np.float32,0x3f800001,0x33ffffff,4
+np.float32,0x3f800002,0x347ffffe,4
+np.float32,0x3f7fffff,0xb3800000,4
+np.float32,0x3f7ffffe,0xb4000000,4
+np.float32,0x3f7ffffd,0xb4400001,4
+np.float32,0x402df853,0x3f7ffffe,4
+np.float32,0x402df854,0x3f7fffff,4
+np.float32,0x402df855,0x3f800000,4
+np.float32,0x402df856,0x3f800001,4
+np.float32,0x3ebc5ab0,0xbf800001,4
+np.float32,0x3ebc5ab1,0xbf800000,4
+np.float32,0x3ebc5ab2,0xbf800000,4
+np.float32,0x3ebc5ab3,0xbf7ffffe,4
+np.float32,0x423ef575,0x407768ab,4
+np.float32,0x427b8c61,0x408485dd,4
+np.float32,0x4211e9ee,0x406630b0,4
+np.float32,0x424d5c41,0x407c0fed,4
+np.float32,0x42be722a,0x4091cc91,4
+np.float32,0x42b73d30,0x4090908b,4
+np.float32,0x427e48e2,0x4084de7f,4
+np.float32,0x428f759b,0x4088bba3,4
+np.float32,0x41629069,0x4029a0cc,4
+np.float32,0x4272c99d,0x40836379,4
+np.float32,0x4d1b7458,0x4197463d,4
+np.float32,0x4f10c594,0x41ace2b2,4
+np.float32,0x4ea397c2,0x41a85171,4
+np.float32,0x4fefa9d1,0x41b6769c,4
+np.float32,0x4ebac6ab,0x41a960dc,4
+np.float32,0x4f6efb42,0x41b0e535,4
+np.float32,0x4e9ab8e7,0x41a7df44,4
+np.float32,0x4e81b5d1,0x41a67625,4
+np.float32,0x5014d9f2,0x41b832bd,4
+np.float32,0x4f02175c,0x41ac07b8,4
+np.float32,0x7f034f89,0x42b01c47,4
+np.float32,0x7f56d00e,0x42b11849,4
+np.float32,0x7f1cd5f6,0x42b0773a,4
+np.float32,0x7e979174,0x42af02d7,4
+np.float32,0x7f23369f,0x42b08ba2,4
+np.float32,0x7f0637ae,0x42b0277d,4
+np.float32,0x7efcb6e8,0x42b00897,4
+np.float32,0x7f7907c8,0x42b163f6,4
+np.float32,0x7e95c4c2,0x42aefcba,4
+np.float32,0x7f4577b2,0x42b0ed2d,4
+np.float32,0x3f49c92e,0xbe73ae84,4
+np.float32,0x3f4a23d1,0xbe71e2f8,4
+np.float32,0x3f4abb67,0xbe6ee430,4
+np.float32,0x3f48169a,0xbe7c5532,4
+np.float32,0x3f47f5fa,0xbe7cfc37,4
+np.float32,0x3f488309,0xbe7a2ad8,4
+np.float32,0x3f479df4,0xbe7ebf5f,4
+np.float32,0x3f47cfff,0xbe7dbec9,4
+np.float32,0x3f496704,0xbe75a125,4
+np.float32,0x3f478ee8,0xbe7f0c92,4
+np.float32,0x3f4a763b,0xbe7041ce,4
+np.float32,0x3f47a108,0xbe7eaf94,4
+np.float32,0x3f48136c,0xbe7c6578,4
+np.float32,0x3f481c17,0xbe7c391c,4
+np.float32,0x3f47cd28,0xbe7dcd56,4
+np.float32,0x3f478be8,0xbe7f1bf7,4
+np.float32,0x3f4c1f8e,0xbe67e367,4
+np.float32,0x3f489b0c,0xbe79b03f,4
+np.float32,0x3f4934cf,0xbe76a08a,4
+np.float32,0x3f4954df,0xbe75fd6a,4
+np.float32,0x3f47a3f5,0xbe7ea093,4
+np.float32,0x3f4ba4fc,0xbe6a4b02,4
+np.float32,0x3f47a0e1,0xbe7eb05c,4
+np.float32,0x3f48c30a,0xbe78e42f,4
+np.float32,0x3f48cab8,0xbe78bd05,4
+np.float32,0x3f4b0569,0xbe6d6ea4,4
+np.float32,0x3f47de32,0xbe7d7607,4
+np.float32,0x3f477328,0xbe7f9b00,4
+np.float32,0x3f496dab,0xbe757f52,4
+np.float32,0x3f47662c,0xbe7fddac,4
+np.float32,0x3f48ddd8,0xbe785b80,4
+np.float32,0x3f481866,0xbe7c4bff,4
+np.float32,0x3f48b119,0xbe793fb6,4
+np.float32,0x3f48c7e8,0xbe78cb5c,4
+np.float32,0x3f4985f6,0xbe7503da,4
+np.float32,0x3f483fdf,0xbe7b8212,4
+np.float32,0x3f4b1c76,0xbe6cfa67,4
+np.float32,0x3f480b2e,0xbe7c8fa8,4
+np.float32,0x3f48745f,0xbe7a75bf,4
+np.float32,0x3f485bda,0xbe7af308,4
+np.float32,0x3f47a660,0xbe7e942c,4
+np.float32,0x3f47d4d5,0xbe7da600,4
+np.float32,0x3f4b0a26,0xbe6d56be,4
+np.float32,0x3f4a4883,0xbe712924,4
+np.float32,0x3f4769e7,0xbe7fca84,4
+np.float32,0x3f499702,0xbe74ad3f,4
+np.float32,0x3f494ab1,0xbe763131,4
+np.float32,0x3f476b69,0xbe7fc2c6,4
+np.float32,0x3f4884e8,0xbe7a214a,4
+np.float32,0x3f486945,0xbe7aae76,4
+#float64
+## +ve denormal ##
+np.float64,0x0000000000000001,0xc0874385446d71c3,1
+np.float64,0x0001000000000000,0xc086395a2079b70c,1
+np.float64,0x000fffffffffffff,0xc086232bdd7abcd2,1
+np.float64,0x0007ad63e2168cb6,0xc086290bc0b2980f,1
+## -ve denormal ##
+np.float64,0x8000000000000001,0xfff8000000000001,1
+np.float64,0x8001000000000000,0xfff8000000000001,1
+np.float64,0x800fffffffffffff,0xfff8000000000001,1
+np.float64,0x8007ad63e2168cb6,0xfff8000000000001,1
+## +/-0.0f, MAX, MIN##
+np.float64,0x0000000000000000,0xfff0000000000000,1
+np.float64,0x8000000000000000,0xfff0000000000000,1
+np.float64,0x7fefffffffffffff,0x40862e42fefa39ef,1
+np.float64,0xffefffffffffffff,0xfff8000000000001,1
+## near 1.0f ##
+np.float64,0x3ff0000000000000,0x0000000000000000,1
+np.float64,0x3fe8000000000000,0xbfd269621134db92,1
+np.float64,0x3ff0000000000001,0x3cafffffffffffff,1
+np.float64,0x3ff0000020000000,0x3e7fffffe000002b,1
+np.float64,0x3ff0000000000001,0x3cafffffffffffff,1
+np.float64,0x3fefffffe0000000,0xbe70000008000005,1
+np.float64,0x3fefffffffffffff,0xbca0000000000000,1
+## random numbers ##
+np.float64,0x02500186f3d9da56,0xc0855b8abf135773,1
+np.float64,0x09200815a3951173,0xc082ff1ad7131bdc,1
+np.float64,0x0da029623b0243d4,0xc0816fc994695bb5,1
+np.float64,0x48703b8ac483a382,0x40579213a313490b,1
+np.float64,0x09207b74c87c9860,0xc082fee20ff349ef,1
+np.float64,0x62c077698e8df947,0x407821c996d110f0,1
+np.float64,0x2350b45e87c3cfb0,0xc073d6b16b51d072,1
+np.float64,0x3990a23f9ff2b623,0xc051aa60eadd8c61,1
+np.float64,0x0d011386a116c348,0xc081a6cc7ea3b8fb,1
+np.float64,0x1fe0f0303ebe273a,0xc0763870b78a81ca,1
+np.float64,0x0cd1260121d387da,0xc081b7668d61a9d1,1
+np.float64,0x1e6135a8f581d422,0xc077425ac10f08c2,1
+np.float64,0x622168db5fe52d30,0x4077b3c669b9fadb,1
+np.float64,0x69f188e1ec6d1718,0x407d1e2f18c63889,1
+np.float64,0x3aa1bf1d9c4dd1a3,0xc04d682e24bde479,1
+np.float64,0x6c81c4011ce4f683,0x407ee5190e8a8e6a,1
+np.float64,0x2191fa55aa5a5095,0xc0750c0c318b5e2d,1
+np.float64,0x32a1f602a32bf360,0xc06270caa493fc17,1
+np.float64,0x16023c90ba93249b,0xc07d0f88e0801638,1
+np.float64,0x1c525fe6d71fa9ff,0xc078af49c66a5d63,1
+np.float64,0x1a927675815d65b7,0xc079e5bdd7fe376e,1
+np.float64,0x41227b8fe70da028,0x402aa0c9f9a84c71,1
+np.float64,0x4962bb6e853fe87d,0x405a34aa04c83747,1
+np.float64,0x23d2cda00b26b5a4,0xc0737c13a06d00ea,1
+np.float64,0x2d13083fd62987fa,0xc06a25055aeb474e,1
+np.float64,0x10e31e4c9b4579a1,0xc0804e181929418e,1
+np.float64,0x26d3247d556a86a9,0xc0716774171da7e8,1
+np.float64,0x6603379398d0d4ac,0x407a64f51f8a887b,1
+np.float64,0x02d38af17d9442ba,0xc0852d955ac9dd68,1
+np.float64,0x6a2382b4818dd967,0x407d4129d688e5d4,1
+np.float64,0x2ee3c403c79b3934,0xc067a091fefaf8b6,1
+np.float64,0x6493a699acdbf1a4,0x4079663c8602bfc5,1
+np.float64,0x1c8413c4f0de3100,0xc0788c99697059b6,1
+np.float64,0x4573f1ed350d9622,0x404e9bd1e4c08920,1
+np.float64,0x2f34265c9200b69c,0xc067310cfea4e986,1
+np.float64,0x19b43e65fa22029b,0xc07a7f8877de22d6,1
+np.float64,0x0af48ab7925ed6bc,0xc0825c4fbc0e5ade,1
+np.float64,0x4fa49699cad82542,0x4065c76d2a318235,1
+np.float64,0x7204a15e56ade492,0x40815bb87484dffb,1
+np.float64,0x4734aa08a230982d,0x40542a4bf7a361a9,1
+np.float64,0x1ae4ed296c2fd749,0xc079ac4921f20abb,1
+np.float64,0x472514ea4370289c,0x4053ff372bd8f18f,1
+np.float64,0x53a54b3f73820430,0x406b5411fc5f2e33,1
+np.float64,0x64754de5a15684fa,0x407951592e99a5ab,1
+np.float64,0x69358e279868a7c3,0x407c9c671a882c31,1
+np.float64,0x284579ec61215945,0xc0706688e55f0927,1
+np.float64,0x68b5c58806447adc,0x407c43d6f4eff760,1
+np.float64,0x1945a83f98b0e65d,0xc07acc15eeb032cc,1
+np.float64,0x0fc5eb98a16578bf,0xc080b0d02eddca0e,1
+np.float64,0x6a75e208f5784250,0x407d7a7383bf8f05,1
+np.float64,0x0fe63a029c47645d,0xc080a59ca1e98866,1
+np.float64,0x37963ac53f065510,0xc057236281f7bdb6,1
+np.float64,0x135661bb07067ff7,0xc07ee924930c21e4,1
+np.float64,0x4b4699469d458422,0x405f73843756e887,1
+np.float64,0x1a66d73e4bf4881b,0xc07a039ba1c63adf,1
+np.float64,0x12a6b9b119a7da59,0xc07f62e49c6431f3,1
+np.float64,0x24c719aa8fd1bdb5,0xc072d26da4bf84d3,1
+np.float64,0x0fa6ff524ffef314,0xc080bb8514662e77,1
+np.float64,0x1db751d66fdd4a9a,0xc077b77cb50d7c92,1
+np.float64,0x4947374c516da82c,0x4059e9acfc7105bf,1
+np.float64,0x1b1771ab98f3afc8,0xc07989326b8e1f66,1
+np.float64,0x25e78805baac8070,0xc0720a818e6ef080,1
+np.float64,0x4bd7a148225d3687,0x406082d004ea3ee7,1
+np.float64,0x53d7d6b2bbbda00a,0x406b9a398967cbd5,1
+np.float64,0x6997fb9f4e1c685f,0x407ce0a703413eba,1
+np.float64,0x069802c2ff71b951,0xc083df39bf7acddc,1
+np.float64,0x4d683ac9890f66d8,0x4062ae21d8c2acf0,1
+np.float64,0x5a2825863ec14f4c,0x40722d718d549552,1
+np.float64,0x0398799a88f4db80,0xc084e93dab8e2158,1
+np.float64,0x5ed87a8b77e135a5,0x40756d7051777b33,1
+np.float64,0x5828cd6d79b9bede,0x4070cafb22fc6ca1,1
+np.float64,0x7b18ba2a5ec6f068,0x408481386b3ed6fe,1
+np.float64,0x4938fd60922198fe,0x4059c206b762ea7e,1
+np.float64,0x31b8f44fcdd1a46e,0xc063b2faa8b6434e,1
+np.float64,0x5729341c0d918464,0x407019cac0c4a7d7,1
+np.float64,0x13595e9228ee878e,0xc07ee7235a7d8088,1
+np.float64,0x17698b0dc9dd4135,0xc07c1627e3a5ad5f,1
+np.float64,0x63b977c283abb0cc,0x4078cf1ec6ed65be,1
+np.float64,0x7349cc0d4dc16943,0x4081cc697ce4cb53,1
+np.float64,0x4e49a80b732fb28d,0x4063e67e3c5cbe90,1
+np.float64,0x07ba14b848a8ae02,0xc0837ac032a094e0,1
+np.float64,0x3da9f17b691bfddc,0xc03929c25366acda,1
+np.float64,0x02ea39aa6c3ac007,0xc08525af6f21e1c4,1
+np.float64,0x3a6a42f04ed9563d,0xc04e98e825dca46b,1
+np.float64,0x1afa877cd7900be7,0xc0799d6648cb34a9,1
+np.float64,0x58ea986649e052c6,0x4071512e939ad790,1
+np.float64,0x691abbc04647f536,0x407c89aaae0fcb83,1
+np.float64,0x43aabc5063e6f284,0x4044b45d18106fd2,1
+np.float64,0x488b003c893e0bea,0x4057df012a2dafbe,1
+np.float64,0x77eb076ed67caee5,0x40836720de94769e,1
+np.float64,0x5c1b46974aba46f4,0x40738731ba256007,1
+np.float64,0x1a5b29ecb5d3c261,0xc07a0becc77040d6,1
+np.float64,0x5d8b6ccf868c6032,0x4074865c1865e2db,1
+np.float64,0x4cfb6690b4aaf5af,0x406216cd8c7e8ddb,1
+np.float64,0x76cbd8eb5c5fc39e,0x4083038dc66d682b,1
+np.float64,0x28bbd1fec5012814,0xc07014c2dd1b9711,1
+np.float64,0x33dc1b3a4fd6bf7a,0xc060bd0756e07d8a,1
+np.float64,0x52bbe89b37de99f3,0x406a10041aa7d343,1
+np.float64,0x07bc479d15eb2dd3,0xc0837a1a6e3a3b61,1
+np.float64,0x18fc5275711a901d,0xc07aff3e9d62bc93,1
+np.float64,0x114c9758e247dc71,0xc080299a7cf15b05,1
+np.float64,0x25ac8f6d60755148,0xc07233c4c0c511d4,1
+np.float64,0x260cae2bb9e9fd7e,0xc071f128c7e82eac,1
+np.float64,0x572ccdfe0241de82,0x40701bedc84bb504,1
+np.float64,0x0ddcef6c8d41f5ee,0xc0815a7e16d07084,1
+np.float64,0x6dad1d59c988af68,0x407fb4a0bc0142b1,1
+np.float64,0x025d200580d8b6d1,0xc08556c0bc32b1b2,1
+np.float64,0x7aad344b6aa74c18,0x40845bbc453f22be,1
+np.float64,0x5b5d9d6ad9d14429,0x4073036d2d21f382,1
+np.float64,0x49cd8d8dcdf19954,0x405b5c034f5c7353,1
+np.float64,0x63edb9483335c1e6,0x4078f2dd21378786,1
+np.float64,0x7b1dd64c9d2c26bd,0x408482b922017bc9,1
+np.float64,0x782e13e0b574be5f,0x40837e2a0090a5ad,1
+np.float64,0x592dfe18b9d6db2f,0x40717f777fbcb1ec,1
+np.float64,0x654e3232ac60d72c,0x4079e71a95a70446,1
+np.float64,0x7b8e42ad22091456,0x4084a9a6f1e61722,1
+np.float64,0x570e88dfd5860ae6,0x407006ae6c0d137a,1
+np.float64,0x294e98346cb98ef1,0xc06f5edaac12bd44,1
+np.float64,0x1adeaa4ab792e642,0xc079b1431d5e2633,1
+np.float64,0x7b6ead3377529ac8,0x40849eabc8c7683c,1
+np.float64,0x2b8eedae8a9b2928,0xc06c400054deef11,1
+np.float64,0x65defb45b2dcf660,0x407a4b53f181c05a,1
+np.float64,0x1baf582d475e7701,0xc07920bcad4a502c,1
+np.float64,0x461f39cf05a0f15a,0x405126368f984fa1,1
+np.float64,0x7e5f6f5dcfff005b,0x4085a37d610439b4,1
+np.float64,0x136f66e4d09bd662,0xc07ed8a2719f2511,1
+np.float64,0x65afd8983fb6ca1f,0x407a2a7f48bf7fc1,1
+np.float64,0x572fa7f95ed22319,0x40701d706cf82e6f,1
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log10.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log10.csv
new file mode 100644
index 0000000000000000000000000000000000000000..0f034e46aacaa9eb18a040f57b4f671561a9cb38
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log10.csv
@@ -0,0 +1,1629 @@
+dtype,input,output,ulperrortol
+np.float32,0x3f6fd5c8,0xbce80e8e,4
+np.float32,0x3ea4ab17,0xbefc3deb,4
+np.float32,0x3e87a133,0xbf13b0b7,4
+np.float32,0x3f0d9069,0xbe83bb19,4
+np.float32,0x3f7b9269,0xbbf84f47,4
+np.float32,0x3f7a9ffa,0xbc16fd97,4
+np.float32,0x7f535d34,0x4219cb66,4
+np.float32,0x3e79ad7c,0xbf1ce857,4
+np.float32,0x7e8bfd3b,0x4217dfe9,4
+np.float32,0x3f2d2ee9,0xbe2dcec6,4
+np.float32,0x572e04,0xc21862e4,4
+np.float32,0x7f36f8,0xc217bad5,4
+np.float32,0x3f7982fb,0xbc36aaed,4
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log1p.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log1p.csv
new file mode 100644
index 0000000000000000000000000000000000000000..f2e05ca39f580102b8173e79ff8fc0b2cf96da84
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-log1p.csv
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new file mode 100644
index 0000000000000000000000000000000000000000..ee50e227c35ffb1313bb6393294edb7754e454d6
--- /dev/null
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-sin.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-sin.csv
new file mode 100644
index 0000000000000000000000000000000000000000..67ab0238c43fe63452c2b13f6b310d07236909b0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-sin.csv
@@ -0,0 +1,1370 @@
+dtype,input,output,ulperrortol
+## +ve denormals ##
+np.float32,0x004b4716,0x004b4716,2
+np.float32,0x007b2490,0x007b2490,2
+np.float32,0x007c99fa,0x007c99fa,2
+np.float32,0x00734a0c,0x00734a0c,2
+np.float32,0x0070de24,0x0070de24,2
+np.float32,0x007fffff,0x007fffff,2
+np.float32,0x00000001,0x00000001,2
+## -ve denormals ##
+np.float32,0x80495d65,0x80495d65,2
+np.float32,0x806894f6,0x806894f6,2
+np.float32,0x80555a76,0x80555a76,2
+np.float32,0x804e1fb8,0x804e1fb8,2
+np.float32,0x80687de9,0x80687de9,2
+np.float32,0x807fffff,0x807fffff,2
+np.float32,0x80000001,0x80000001,2
+## +/-0.0f, +/-FLT_MIN +/-FLT_MAX ##
+np.float32,0x00000000,0x00000000,2
+np.float32,0x80000000,0x80000000,2
+np.float32,0x00800000,0x00800000,2
+np.float32,0x80800000,0x80800000,2
+## 1.00f ##
+np.float32,0x3f800000,0x3f576aa4,2
+np.float32,0x3f800001,0x3f576aa6,2
+np.float32,0x3f800002,0x3f576aa7,2
+np.float32,0xc090a8b0,0x3f7b4e48,2
+np.float32,0x41ce3184,0x3f192d43,2
+np.float32,0xc1d85848,0xbf7161cb,2
+np.float32,0x402b8820,0x3ee3f29f,2
+np.float32,0x42b4e454,0x3f1d0151,2
+np.float32,0x42a67a60,0x3f7ffa4c,2
+np.float32,0x41d92388,0x3f67beef,2
+np.float32,0x422dd66c,0xbeffb0c1,2
+np.float32,0xc28f5be6,0xbf0bae79,2
+np.float32,0x41ab2674,0x3f0ffe2b,2
+np.float32,0x3f490fdb,0x3f3504f3,2
+np.float32,0xbf490fdb,0xbf3504f3,2
+np.float32,0x3fc90fdb,0x3f800000,2
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-sinh.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-sinh.csv
new file mode 100644
index 0000000000000000000000000000000000000000..7c2d5c56fa6956cc1a9a63f6a5f2cbe20680940f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-sinh.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-tan.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-tan.csv
new file mode 100644
index 0000000000000000000000000000000000000000..3ce411ca6d220d4e26ef90ffcf254b8b3c3f683f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-tan.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-tanh.csv b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-tanh.csv
new file mode 100644
index 0000000000000000000000000000000000000000..f2efa70ba70b1dbb4971200793b39df8babd734a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/data/umath-validation-set-tanh.csv
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+np.float64,0x3fe1f27e1ca3e4fc,0x3fe04685b5131207,2
+np.float64,0xbfe71ce1bdee39c4,0xbfe3c940809a7081,2
+np.float64,0xffe8c3aa68318754,0xbff0000000000000,2
+np.float64,0x800d4e2919da9c52,0x800d4e2919da9c52,2
+np.float64,0x7fe6c8bca76d9178,0x3ff0000000000000,2
+np.float64,0x7fced8751e3db0e9,0x3ff0000000000000,2
+np.float64,0xd61d0c8bac3a2,0xd61d0c8bac3a2,2
+np.float64,0x3fec57732938aee6,0x3fe6b22f15f38352,2
+np.float64,0xff9251cc7024a3a0,0xbff0000000000000,2
+np.float64,0xf4a68cb9e94d2,0xf4a68cb9e94d2,2
+np.float64,0x3feed76703bdaece,0x3fe7def0fc9a080c,2
+np.float64,0xbfe8971ff7712e40,0xbfe4ac3eb8ebff07,2
+np.float64,0x3fe4825f682904bf,0x3fe218c1952fe67d,2
+np.float64,0xbfd60f7698ac1eee,0xbfd539f0979b4b0c,2
+np.float64,0x3fcf0845993e1088,0x3fce7032f7180144,2
+np.float64,0x7fc83443f3306887,0x3ff0000000000000,2
+np.float64,0x3fe93123ae726247,0x3fe504e4fc437e89,2
+np.float64,0x3fbf9eb8363f3d70,0x3fbf75cdfa6828d5,2
+np.float64,0xbf8b45e5d0368bc0,0xbf8b457c29dfe1a9,2
+np.float64,0x8006c2853d0d850b,0x8006c2853d0d850b,2
+np.float64,0xffef26e25ffe4dc4,0xbff0000000000000,2
+np.float64,0x7fefffffffffffff,0x3ff0000000000000,2
+np.float64,0xbfde98f2c2bd31e6,0xbfdc761bfab1c4cb,2
+np.float64,0xffb725e6222e4bd0,0xbff0000000000000,2
+np.float64,0x800c63ead5d8c7d6,0x800c63ead5d8c7d6,2
+np.float64,0x3fea087e95f410fd,0x3fe57d3ab440706c,2
+np.float64,0xbfdf9f8a603f3f14,0xbfdd4742d77dfa57,2
+np.float64,0xfff0000000000000,0xbff0000000000000,2
+np.float64,0xbfcdc0841d3b8108,0xbfcd3a401debba9a,2
+np.float64,0x800f0c8f4f7e191f,0x800f0c8f4f7e191f,2
+np.float64,0x800ba6e75fd74dcf,0x800ba6e75fd74dcf,2
+np.float64,0x7fee4927e8bc924f,0x3ff0000000000000,2
+np.float64,0x3fadf141903be283,0x3fade8878d9d3551,2
+np.float64,0x3efb1a267df64,0x3efb1a267df64,2
+np.float64,0xffebf55f22b7eabe,0xbff0000000000000,2
+np.float64,0x7fbe8045663d008a,0x3ff0000000000000,2
+np.float64,0x3fefc0129f7f8026,0x3fe843f8b7d6cf38,2
+np.float64,0xbfe846b420f08d68,0xbfe47d1709e43937,2
+np.float64,0x7fe8e87043f1d0e0,0x3ff0000000000000,2
+np.float64,0x3fcfb718453f6e31,0x3fcf14ecee7b32b4,2
+np.float64,0x7fe4306b71a860d6,0x3ff0000000000000,2
+np.float64,0x7fee08459f7c108a,0x3ff0000000000000,2
+np.float64,0x3fed705165fae0a3,0x3fe73a66369c5700,2
+np.float64,0x7fd0e63f4da1cc7e,0x3ff0000000000000,2
+np.float64,0xffd1a40c2ea34818,0xbff0000000000000,2
+np.float64,0xbfa369795c26d2f0,0xbfa36718218d46b3,2
+np.float64,0xef70b9f5dee17,0xef70b9f5dee17,2
+np.float64,0x3fb50a0a6e2a1410,0x3fb4fdf27724560a,2
+np.float64,0x7fe30a0f6166141e,0x3ff0000000000000,2
+np.float64,0xbfd7b3ca7daf6794,0xbfd6accb81032b2d,2
+np.float64,0x3fc21dceb3243b9d,0x3fc1ff15d5d277a3,2
+np.float64,0x3fe483e445a907c9,0x3fe219ca0e269552,2
+np.float64,0x3fb2b1e2a22563c0,0x3fb2a96554900eaf,2
+np.float64,0x4b1ff6409641,0x4b1ff6409641,2
+np.float64,0xbfd92eabc9b25d58,0xbfd7f55d7776d64e,2
+np.float64,0x8003b8604c8770c1,0x8003b8604c8770c1,2
+np.float64,0x800d20a9df1a4154,0x800d20a9df1a4154,2
+np.float64,0xecf8a535d9f15,0xecf8a535d9f15,2
+np.float64,0x3fe92d15bab25a2b,0x3fe50296aa15ae85,2
+np.float64,0x800239c205a47385,0x800239c205a47385,2
+np.float64,0x3fc48664a9290cc8,0x3fc459d126320ef6,2
+np.float64,0x3fe7620625eec40c,0x3fe3f3bcbee3e8c6,2
+np.float64,0x3fd242ff4ca48600,0x3fd1c81ed7a971c8,2
+np.float64,0xbfe39bafcfa73760,0xbfe17959c7a279db,2
+np.float64,0x7fdcd2567239a4ac,0x3ff0000000000000,2
+np.float64,0x3fe5f2f292ebe5e6,0x3fe30d12f05e2752,2
+np.float64,0x7fda3819d1347033,0x3ff0000000000000,2
+np.float64,0xffca5b4d4334b69c,0xbff0000000000000,2
+np.float64,0xb8a2b7cd71457,0xb8a2b7cd71457,2
+np.float64,0x3fee689603fcd12c,0x3fe7ad4ace26d6dd,2
+np.float64,0x7fe26541a564ca82,0x3ff0000000000000,2
+np.float64,0x3fe6912ee66d225e,0x3fe3720d242c4d82,2
+np.float64,0xffe6580c75ecb018,0xbff0000000000000,2
+np.float64,0x7fe01a3370603466,0x3ff0000000000000,2
+np.float64,0xffe84e3f84b09c7e,0xbff0000000000000,2
+np.float64,0x3ff0000000000000,0x3fe85efab514f394,2
+np.float64,0x3fe214d4266429a8,0x3fe05fec03a3c247,2
+np.float64,0x3fd00aec5da015d8,0x3fcf6e070ad4ad62,2
+np.float64,0x800aac8631f5590d,0x800aac8631f5590d,2
+np.float64,0xbfe7c4f5f76f89ec,0xbfe42fc1c57b4a13,2
+np.float64,0xaf146c7d5e28e,0xaf146c7d5e28e,2
+np.float64,0xbfe57188b66ae312,0xbfe2b8be4615ef75,2
+np.float64,0xffef8cb8e1ff1971,0xbff0000000000000,2
+np.float64,0x8001daf8aa63b5f2,0x8001daf8aa63b5f2,2
+np.float64,0x3fdddcc339bbb986,0x3fdbde5f3783538b,2
+np.float64,0xdd8c92c3bb193,0xdd8c92c3bb193,2
+np.float64,0xbfe861a148f0c342,0xbfe48cf1d228a336,2
+np.float64,0xffe260a32e24c146,0xbff0000000000000,2
+np.float64,0x1f7474b43ee8f,0x1f7474b43ee8f,2
+np.float64,0x3fe81dbd89703b7c,0x3fe464d78df92b7b,2
+np.float64,0x7fed0101177a0201,0x3ff0000000000000,2
+np.float64,0x7fd8b419a8316832,0x3ff0000000000000,2
+np.float64,0x3fe93debccf27bd8,0x3fe50c27727917f0,2
+np.float64,0xe5ead05bcbd5a,0xe5ead05bcbd5a,2
+np.float64,0xbfebbbc4cff7778a,0xbfe663c4ca003bbf,2
+np.float64,0xbfea343eb474687e,0xbfe59529f73ea151,2
+np.float64,0x3fbe74a5963ce94b,0x3fbe50123ed05d8d,2
+np.float64,0x3fd31d3a5d263a75,0x3fd290c026cb38a5,2
+np.float64,0xbfd79908acaf3212,0xbfd695620e31c3c6,2
+np.float64,0xbfc26a350324d46c,0xbfc249f335f3e465,2
+np.float64,0xbfac38d5583871b0,0xbfac31866d12a45e,2
+np.float64,0x3fe40cea672819d5,0x3fe1c83754e72c92,2
+np.float64,0xbfa74770642e8ee0,0xbfa74355fcf67332,2
+np.float64,0x7fc60942d32c1285,0x3ff0000000000000,2
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/__pycache__/setup.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/__pycache__/setup.cpython-313.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..40c80165023005fe2b33f6150f9219f77632c123
Binary files /dev/null and b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/__pycache__/setup.cpython-313.pyc differ
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/checks.pyx b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/checks.pyx
new file mode 100644
index 0000000000000000000000000000000000000000..94b1642c6aa4ddca830a200b7aeac126ebc89718
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/checks.pyx
@@ -0,0 +1,381 @@
+#cython: language_level=3
+
+"""
+Functions in this module give python-space wrappers for cython functions
+exposed in numpy/__init__.pxd, so they can be tested in test_cython.py
+"""
+import numpy as np
+cimport numpy as cnp
+cnp.import_array()
+
+
+def is_td64(obj):
+    return cnp.is_timedelta64_object(obj)
+
+
+def is_dt64(obj):
+    return cnp.is_datetime64_object(obj)
+
+
+def get_dt64_value(obj):
+    return cnp.get_datetime64_value(obj)
+
+
+def get_td64_value(obj):
+    return cnp.get_timedelta64_value(obj)
+
+
+def get_dt64_unit(obj):
+    return cnp.get_datetime64_unit(obj)
+
+
+def is_integer(obj):
+    return isinstance(obj, (cnp.integer, int))
+
+
+def get_datetime_iso_8601_strlen():
+    return cnp.get_datetime_iso_8601_strlen(0, cnp.NPY_FR_ns)
+
+
+def convert_datetime64_to_datetimestruct():
+    cdef:
+        cnp.npy_datetimestruct dts
+        cnp.PyArray_DatetimeMetaData meta
+        cnp.int64_t value = 1647374515260292
+        # i.e. (time.time() * 10**6) at 2022-03-15 20:01:55.260292 UTC
+
+    meta.base = cnp.NPY_FR_us
+    meta.num = 1
+    cnp.convert_datetime64_to_datetimestruct(&meta, value, &dts)
+    return dts
+
+
+def make_iso_8601_datetime(dt: "datetime"):
+    cdef:
+        cnp.npy_datetimestruct dts
+        char result[36]  # 36 corresponds to NPY_FR_s passed below
+        int local = 0
+        int utc = 0
+        int tzoffset = 0
+
+    dts.year = dt.year
+    dts.month = dt.month
+    dts.day = dt.day
+    dts.hour = dt.hour
+    dts.min = dt.minute
+    dts.sec = dt.second
+    dts.us = dt.microsecond
+    dts.ps = dts.as = 0
+
+    cnp.make_iso_8601_datetime(
+        &dts,
+        result,
+        sizeof(result),
+        local,
+        utc,
+        cnp.NPY_FR_s,
+        tzoffset,
+        cnp.NPY_NO_CASTING,
+    )
+    return result
+
+
+cdef cnp.broadcast multiiter_from_broadcast_obj(object bcast):
+    cdef dict iter_map = {
+        1: cnp.PyArray_MultiIterNew1,
+        2: cnp.PyArray_MultiIterNew2,
+        3: cnp.PyArray_MultiIterNew3,
+        4: cnp.PyArray_MultiIterNew4,
+        5: cnp.PyArray_MultiIterNew5,
+    }
+    arrays = [x.base for x in bcast.iters]
+    cdef cnp.broadcast result = iter_map[len(arrays)](*arrays)
+    return result
+
+
+def get_multiiter_size(bcast: "broadcast"):
+    cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast)
+    return multi.size
+
+
+def get_multiiter_number_of_dims(bcast: "broadcast"):
+    cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast)
+    return multi.nd
+
+
+def get_multiiter_current_index(bcast: "broadcast"):
+    cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast)
+    return multi.index
+
+
+def get_multiiter_num_of_iterators(bcast: "broadcast"):
+    cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast)
+    return multi.numiter
+
+
+def get_multiiter_shape(bcast: "broadcast"):
+    cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast)
+    return tuple([multi.dimensions[i] for i in range(bcast.nd)])
+
+
+def get_multiiter_iters(bcast: "broadcast"):
+    cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast)
+    return tuple([<cnp.flatiter>multi.iters[i] for i in range(bcast.numiter)])
+
+
+def get_default_integer():
+    if cnp.NPY_DEFAULT_INT == cnp.NPY_LONG:
+        return cnp.dtype("long")
+    if cnp.NPY_DEFAULT_INT == cnp.NPY_INTP:
+        return cnp.dtype("intp")
+    return None
+
+def get_ravel_axis():
+    return cnp.NPY_RAVEL_AXIS
+
+
+def conv_intp(cnp.intp_t val):
+    return val
+
+
+def get_dtype_flags(cnp.dtype dtype):
+    return dtype.flags
+
+
+cdef cnp.NpyIter* npyiter_from_nditer_obj(object it):
+    """A function to create a NpyIter struct from a nditer object.
+
+    This function is only meant for testing purposes and only extracts the
+    necessary info from nditer to test the functionality of NpyIter methods
+    """
+    cdef:
+        cnp.NpyIter* cit
+        cnp.PyArray_Descr* op_dtypes[3]
+        cnp.npy_uint32 op_flags[3]
+        cnp.PyArrayObject* ops[3]
+        cnp.npy_uint32 flags = 0
+
+    if it.has_index:
+        flags |= cnp.NPY_ITER_C_INDEX
+    if it.has_delayed_bufalloc:
+        flags |= cnp.NPY_ITER_BUFFERED | cnp.NPY_ITER_DELAY_BUFALLOC
+    if it.has_multi_index:
+        flags |= cnp.NPY_ITER_MULTI_INDEX
+
+    # one of READWRITE, READONLY and WRTIEONLY at the minimum must be specified for op_flags
+    for i in range(it.nop):
+        op_flags[i] = cnp.NPY_ITER_READONLY
+
+    for i in range(it.nop):
+        op_dtypes[i] = cnp.PyArray_DESCR(it.operands[i])
+        ops[i] = <cnp.PyArrayObject*>it.operands[i]
+
+    cit = cnp.NpyIter_MultiNew(it.nop, &ops[0], flags, cnp.NPY_KEEPORDER,
+                               cnp.NPY_NO_CASTING, &op_flags[0],
+                               <cnp.PyArray_Descr**>NULL)
+    return cit
+
+
+def get_npyiter_size(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = cnp.NpyIter_GetIterSize(cit)
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def get_npyiter_ndim(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = cnp.NpyIter_GetNDim(cit)
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def get_npyiter_nop(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = cnp.NpyIter_GetNOp(cit)
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def get_npyiter_operands(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    try:
+        arr = cnp.NpyIter_GetOperandArray(cit)
+        return tuple([<cnp.ndarray>arr[i] for i in range(it.nop)])
+    finally:
+        cnp.NpyIter_Deallocate(cit)
+
+
+def get_npyiter_itviews(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = tuple([cnp.NpyIter_GetIterView(cit, i) for i in range(it.nop)])
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def get_npyiter_dtypes(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    try:
+        arr = cnp.NpyIter_GetDescrArray(cit)
+        return tuple([<cnp.dtype>arr[i] for i in range(it.nop)])
+    finally:
+        cnp.NpyIter_Deallocate(cit)
+
+
+def npyiter_has_delayed_bufalloc(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = cnp.NpyIter_HasDelayedBufAlloc(cit)
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def npyiter_has_index(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = cnp.NpyIter_HasIndex(cit)
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def npyiter_has_multi_index(it: "nditer"):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    result = cnp.NpyIter_HasMultiIndex(cit)
+    cnp.NpyIter_Deallocate(cit)
+    return result
+
+
+def test_get_multi_index_iter_next(it: "nditer", cnp.ndarray[cnp.float64_t, ndim=2] arr):
+    cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it)
+    cdef cnp.NpyIter_GetMultiIndexFunc _get_multi_index = \
+        cnp.NpyIter_GetGetMultiIndex(cit, NULL)
+    cdef cnp.NpyIter_IterNextFunc _iternext = \
+        cnp.NpyIter_GetIterNext(cit, NULL)
+    cnp.NpyIter_Deallocate(cit)
+    return 1
+
+
+def npyiter_has_finished(it: "nditer"):
+    cdef cnp.NpyIter* cit
+    try:
+        cit = npyiter_from_nditer_obj(it)
+        cnp.NpyIter_GotoIterIndex(cit, it.index)
+        return not (cnp.NpyIter_GetIterIndex(cit) < cnp.NpyIter_GetIterSize(cit))
+    finally:
+        cnp.NpyIter_Deallocate(cit)
+
+def compile_fillwithbyte():
+    # Regression test for gh-25878, mostly checks it compiles.
+    cdef cnp.npy_intp dims[2]
+    dims = (1, 2)
+    pos = cnp.PyArray_ZEROS(2, dims, cnp.NPY_UINT8, 0)
+    cnp.PyArray_FILLWBYTE(pos, 1)
+    return pos
+
+def inc2_cfloat_struct(cnp.ndarray[cnp.cfloat_t] arr):
+    # This works since we compile in C mode, it will fail in cpp mode
+    arr[1].real += 1
+    arr[1].imag += 1
+    # This works in both modes
+    arr[1].real = arr[1].real + 1
+    arr[1].imag = arr[1].imag + 1
+
+
+def npystring_pack(arr):
+    cdef char *string = "Hello world"
+    cdef size_t size = 11
+
+    allocator = cnp.NpyString_acquire_allocator(
+        <cnp.PyArray_StringDTypeObject *>cnp.PyArray_DESCR(arr)
+    )
+
+    # copy string->packed_string, the pointer to the underlying array buffer
+    ret = cnp.NpyString_pack(
+        allocator, <cnp.npy_packed_static_string *>cnp.PyArray_DATA(arr), string, size,
+    )
+
+    cnp.NpyString_release_allocator(allocator)
+    return ret
+
+
+def npystring_load(arr):
+    allocator = cnp.NpyString_acquire_allocator(
+        <cnp.PyArray_StringDTypeObject *>cnp.PyArray_DESCR(arr)
+    )
+
+    cdef cnp.npy_static_string sdata
+    sdata.size = 0
+    sdata.buf = NULL
+
+    cdef cnp.npy_packed_static_string *packed_string = <cnp.npy_packed_static_string *>cnp.PyArray_DATA(arr)
+    cdef int is_null = cnp.NpyString_load(allocator, packed_string, &sdata)
+    cnp.NpyString_release_allocator(allocator)
+    if is_null == -1:
+        raise ValueError("String unpacking failed.")
+    elif is_null == 1:
+        # String in the array buffer is the null string
+        return ""
+    else:
+        # Cython syntax for copying a c string to python bytestring:
+        # slice the char * by the length of the string
+        return sdata.buf[:sdata.size].decode('utf-8')
+
+
+def npystring_pack_multiple(arr1, arr2):
+    cdef cnp.npy_string_allocator *allocators[2]
+    cdef cnp.PyArray_Descr *descrs[2]
+    descrs[0] = cnp.PyArray_DESCR(arr1)
+    descrs[1] = cnp.PyArray_DESCR(arr2)
+
+    cnp.NpyString_acquire_allocators(2, descrs, allocators)
+
+    # Write into the first element of each array
+    cdef int ret1 = cnp.NpyString_pack(
+        allocators[0], <cnp.npy_packed_static_string *>cnp.PyArray_DATA(arr1), "Hello world", 11,
+    )
+    cdef int ret2 = cnp.NpyString_pack(
+        allocators[1], <cnp.npy_packed_static_string *>cnp.PyArray_DATA(arr2), "test this", 9,
+    )
+
+    # Write a null string into the last element
+    cdef cnp.npy_intp elsize = cnp.PyArray_ITEMSIZE(arr1)
+    cdef int ret3 = cnp.NpyString_pack_null(
+        allocators[0],
+        <cnp.npy_packed_static_string *>(<char *>cnp.PyArray_DATA(arr1) + 2*elsize),
+    )
+
+    cnp.NpyString_release_allocators(2, allocators)
+    if ret1 == -1 or ret2 == -1 or ret3 == -1:
+        return -1
+
+    return 0
+
+
+def npystring_allocators_other_types(arr1, arr2):
+    cdef cnp.npy_string_allocator *allocators[2]
+    cdef cnp.PyArray_Descr *descrs[2]
+    descrs[0] = cnp.PyArray_DESCR(arr1)
+    descrs[1] = cnp.PyArray_DESCR(arr2)
+
+    cnp.NpyString_acquire_allocators(2, descrs, allocators)
+
+    # None of the dtypes here are StringDType, so every allocator
+    # should be NULL upon acquisition.
+    cdef int ret = 0
+    for allocator in allocators:
+        if allocator != NULL:
+            ret = -1
+            break
+
+    cnp.NpyString_release_allocators(2, allocators)
+    return ret
+
+
+def check_npy_uintp_type_enum():
+    # Regression test for gh-27890: cnp.NPY_UINTP was not defined.
+    # Cython would fail to compile this before gh-27890 was fixed.
+    return cnp.NPY_UINTP > 0
+
+
+def resize_refcheck_test():
+    # see gh-30991
+    a = np.array([[0, 1], [2, 3]], order='C')
+    a.resize((2, 1))
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/meson.build b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/meson.build
new file mode 100644
index 0000000000000000000000000000000000000000..499de153bc539cbcdb2e4fcef18b520b792c1075
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/meson.build
@@ -0,0 +1,43 @@
+project('checks', 'c', 'cython')
+
+py = import('python').find_installation(pure: false)
+
+cc = meson.get_compiler('c')
+cy = meson.get_compiler('cython')
+
+# Keep synced with pyproject.toml
+if not cy.version().version_compare('>=3.0.6')
+  error('tests requires Cython >= 3.0.6')
+endif
+
+cython_args = []
+if cy.version().version_compare('>=3.1.0')
+  cython_args += ['-Xfreethreading_compatible=True']
+endif
+
+npy_include_path = run_command(py, [
+    '-c',
+    'import os; os.chdir(".."); import numpy; print(os.path.abspath(numpy.get_include()))'
+    ], check: true).stdout().strip()
+
+npy_path = run_command(py, [
+    '-c',
+    'import os; os.chdir(".."); import numpy; print(os.path.dirname(numpy.__file__).removesuffix("numpy"))'
+    ], check: true).stdout().strip()
+
+# TODO: This is a hack due to gh-25135, where cython may not find the right
+#       __init__.pyd file.
+add_project_arguments('-I', npy_path, language : 'cython')
+
+py.extension_module(
+    'checks',
+    'checks.pyx',
+    install: false,
+    c_args: [
+      '-DNPY_NO_DEPRECATED_API=0',  # Cython still uses old NumPy C API
+      # Require 1.25+ to test datetime additions
+      '-DNPY_TARGET_VERSION=NPY_2_0_API_VERSION',
+    ],
+    include_directories: [npy_include_path],
+    cython_args: cython_args,
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/setup.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/setup.py
new file mode 100644
index 0000000000000000000000000000000000000000..4a2c3dbc45d704d417e962eaa4dbb4fa95796f4b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/cython/setup.py
@@ -0,0 +1,39 @@
+"""
+Provide python-space access to the functions exposed in numpy/__init__.pxd
+for testing.
+"""
+
+import os
+from distutils.core import setup
+
+import Cython
+from Cython.Build import cythonize
+from setuptools.extension import Extension
+
+import numpy as np
+from numpy._utils import _pep440
+
+macros = [
+    ("NPY_NO_DEPRECATED_API", 0),
+    # Require 1.25+ to test datetime additions
+    ("NPY_TARGET_VERSION", "NPY_2_0_API_VERSION"),
+]
+
+checks = Extension(
+    "checks",
+    sources=[os.path.join('.', "checks.pyx")],
+    include_dirs=[np.get_include()],
+    define_macros=macros,
+)
+
+extensions = [checks]
+
+compiler_directives = {}
+if _pep440.parse(Cython.__version__) >= _pep440.parse("3.1.0a0"):
+    compiler_directives['freethreading_compatible'] = True
+
+setup(
+    ext_modules=cythonize(
+        extensions,
+        compiler_directives=compiler_directives)
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/__pycache__/setup.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/__pycache__/setup.cpython-313.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..676f663142cb9c574907630049b57c8742451ba8
Binary files /dev/null and b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/__pycache__/setup.cpython-313.pyc differ
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api1.c b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api1.c
new file mode 100644
index 0000000000000000000000000000000000000000..c7e96d6b9c2704e3a5454bf9783e0db9bd197890
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api1.c
@@ -0,0 +1,15 @@
+#include <Python.h>
+#include <numpy/arrayobject.h>
+#include <numpy/ufuncobject.h>
+
+static PyModuleDef moduledef = {
+    .m_base = PyModuleDef_HEAD_INIT,
+    .m_name = "limited_api1"
+};
+
+PyMODINIT_FUNC PyInit_limited_api1(void)
+{
+    import_array();
+    import_umath();
+    return PyModule_Create(&moduledef);
+}
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api2.pyx b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api2.pyx
new file mode 100644
index 0000000000000000000000000000000000000000..dd88ece92c2d71b90e5dc1de62f624d9fdfc7c4c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api2.pyx
@@ -0,0 +1,11 @@
+#cython: language_level=3
+
+"""
+Make sure cython can compile in limited API mode (see meson.build)
+"""
+
+cdef extern from "numpy/arrayobject.h":
+    pass
+cdef extern from "numpy/arrayscalars.h":
+    pass
+
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api_latest.c b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api_latest.c
new file mode 100644
index 0000000000000000000000000000000000000000..3f71a6b710951bdcb4f0617346cb3eefa3a48454
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/limited_api_latest.c
@@ -0,0 +1,19 @@
+#include <Python.h>
+#include <numpy/arrayobject.h>
+#include <numpy/ufuncobject.h>
+
+#if Py_LIMITED_API != PY_VERSION_HEX & 0xffff0000
+    # error "Py_LIMITED_API not defined to Python major+minor version"
+#endif
+
+static PyModuleDef moduledef = {
+    .m_base = PyModuleDef_HEAD_INIT,
+    .m_name = "limited_api_latest"
+};
+
+PyMODINIT_FUNC PyInit_limited_api_latest(void)
+{
+    import_array();
+    import_umath();
+    return PyModule_Create(&moduledef);
+}
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/meson.build b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/meson.build
new file mode 100644
index 0000000000000000000000000000000000000000..74eda8039d03324c52a2675fea03ed90facb3aa4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/meson.build
@@ -0,0 +1,63 @@
+project(
+  'checks',
+  'c', 'cython',
+  meson_version: '>=1.8.3',
+)
+
+py = import('python').find_installation(pure: false)
+
+cc = meson.get_compiler('c')
+cy = meson.get_compiler('cython')
+
+# Keep synced with pyproject.toml
+if not cy.version().version_compare('>=3.0.6')
+  error('tests requires Cython >= 3.0.6')
+endif
+
+npy_include_path = run_command(py, [
+    '-c',
+    'import os; os.chdir(".."); import numpy; print(os.path.abspath(numpy.get_include()))'
+    ], check: true).stdout().strip()
+
+npy_path = run_command(py, [
+    '-c',
+    'import os; os.chdir(".."); import numpy; print(os.path.dirname(numpy.__file__).removesuffix("numpy"))'
+    ], check: true).stdout().strip()
+
+# TODO: This is a hack due to https://github.com/cython/cython/issues/5820,
+# where cython may not find the right __init__.pyd file.
+add_project_arguments('-I', npy_path, language : 'cython')
+
+py.extension_module(
+    'limited_api1',
+    'limited_api1.c',
+    c_args: [
+      '-DNPY_NO_DEPRECATED_API=NPY_1_21_API_VERSION',
+    ],
+    include_directories: [npy_include_path],
+    limited_api: '3.9',
+)
+
+py.extension_module(
+    'limited_api_latest',
+    'limited_api_latest.c',
+    c_args: [
+      '-DNPY_NO_DEPRECATED_API=NPY_1_21_API_VERSION',
+    ],
+    include_directories: [npy_include_path],
+    limited_api: py.language_version(),
+)
+
+py.extension_module(
+    'limited_api2',
+    'limited_api2.pyx',
+    install: false,
+    c_args: [
+      '-DNPY_NO_DEPRECATED_API=0',
+      # Require 1.25+ to test datetime additions
+      '-DNPY_TARGET_VERSION=NPY_2_0_API_VERSION',
+      '-DCYTHON_LIMITED_API=1',
+    ],
+    include_directories: [npy_include_path],
+    limited_api: '3.9',
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/setup.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/setup.py
new file mode 100644
index 0000000000000000000000000000000000000000..d1e4ee30475e314f0aaaeb1e24659cfe9bc42a8b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/examples/limited_api/setup.py
@@ -0,0 +1,24 @@
+"""
+Build an example package using the limited Python C API.
+"""
+
+import os
+
+from setuptools import Extension, setup
+
+import numpy as np
+
+macros = [("NPY_NO_DEPRECATED_API", 0), ("Py_LIMITED_API", "0x03060000")]
+
+limited_api = Extension(
+    "limited_api",
+    sources=[os.path.join('.', "limited_api.c")],
+    include_dirs=[np.get_include()],
+    define_macros=macros,
+)
+
+extensions = [limited_api]
+
+setup(
+    ext_modules=extensions
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test__exceptions.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test__exceptions.py
new file mode 100644
index 0000000000000000000000000000000000000000..0f83b11af458d78020a6c147b34b606328096c11
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test__exceptions.py
@@ -0,0 +1,90 @@
+"""
+Tests of the ._exceptions module. Primarily for exercising the __str__ methods.
+"""
+
+import pickle
+
+import pytest
+
+import numpy as np
+from numpy.exceptions import AxisError
+
+_ArrayMemoryError = np._core._exceptions._ArrayMemoryError
+_UFuncNoLoopError = np._core._exceptions._UFuncNoLoopError
+
+class TestArrayMemoryError:
+    def test_pickling(self):
+        """ Test that _ArrayMemoryError can be pickled """
+        error = _ArrayMemoryError((1023,), np.dtype(np.uint8))
+        res = pickle.loads(pickle.dumps(error))
+        assert res._total_size == error._total_size
+
+    def test_str(self):
+        e = _ArrayMemoryError((1023,), np.dtype(np.uint8))
+        str(e)  # not crashing is enough
+
+    # testing these properties is easier than testing the full string repr
+    def test__size_to_string(self):
+        """ Test e._size_to_string """
+        f = _ArrayMemoryError._size_to_string
+        Ki = 1024
+        assert f(0) == '0 bytes'
+        assert f(1) == '1 bytes'
+        assert f(1023) == '1023 bytes'
+        assert f(Ki) == '1.00 KiB'
+        assert f(Ki + 1) == '1.00 KiB'
+        assert f(10 * Ki) == '10.0 KiB'
+        assert f(int(999.4 * Ki)) == '999. KiB'
+        assert f(int(1023.4 * Ki)) == '1023. KiB'
+        assert f(int(1023.5 * Ki)) == '1.00 MiB'
+        assert f(Ki * Ki) == '1.00 MiB'
+
+        # 1023.9999 Mib should round to 1 GiB
+        assert f(int(Ki * Ki * Ki * 0.9999)) == '1.00 GiB'
+        assert f(Ki * Ki * Ki * Ki * Ki * Ki) == '1.00 EiB'
+        # larger than sys.maxsize, adding larger prefixes isn't going to help
+        # anyway.
+        assert f(Ki * Ki * Ki * Ki * Ki * Ki * 123456) == '123456. EiB'
+
+    def test__total_size(self):
+        """ Test e._total_size """
+        e = _ArrayMemoryError((1,), np.dtype(np.uint8))
+        assert e._total_size == 1
+
+        e = _ArrayMemoryError((2, 4), np.dtype((np.uint64, 16)))
+        assert e._total_size == 1024
+
+
+class TestUFuncNoLoopError:
+    def test_pickling(self):
+        """ Test that _UFuncNoLoopError can be pickled """
+        assert isinstance(pickle.dumps(_UFuncNoLoopError), bytes)
+
+
+@pytest.mark.parametrize("args", [
+    (2, 1, None),
+    (2, 1, "test_prefix"),
+    ("test message",),
+])
+class TestAxisError:
+    def test_attr(self, args):
+        """Validate attribute types."""
+        exc = AxisError(*args)
+        if len(args) == 1:
+            assert exc.axis is None
+            assert exc.ndim is None
+        else:
+            axis, ndim, *_ = args
+            assert exc.axis == axis
+            assert exc.ndim == ndim
+
+    def test_pickling(self, args):
+        """Test that `AxisError` can be pickled."""
+        exc = AxisError(*args)
+        exc2 = pickle.loads(pickle.dumps(exc))
+
+        assert type(exc) is type(exc2)
+        for name in ("axis", "ndim", "args"):
+            attr1 = getattr(exc, name)
+            attr2 = getattr(exc2, name)
+            assert attr1 == attr2, name
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_abc.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_abc.py
new file mode 100644
index 0000000000000000000000000000000000000000..a61036f1e89c9bdea9cc1ae6bdbb1d0b05d64814
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_abc.py
@@ -0,0 +1,54 @@
+import numbers
+
+import numpy as np
+from numpy._core.numerictypes import sctypes
+from numpy.testing import assert_
+
+
+class TestABC:
+    def test_abstract(self):
+        assert_(issubclass(np.number, numbers.Number))
+
+        assert_(issubclass(np.inexact, numbers.Complex))
+        assert_(issubclass(np.complexfloating, numbers.Complex))
+        assert_(issubclass(np.floating, numbers.Real))
+
+        assert_(issubclass(np.integer, numbers.Integral))
+        assert_(issubclass(np.signedinteger, numbers.Integral))
+        assert_(issubclass(np.unsignedinteger, numbers.Integral))
+
+    def test_floats(self):
+        for t in sctypes['float']:
+            assert_(isinstance(t(), numbers.Real),
+                    f"{t.__name__} is not instance of Real")
+            assert_(issubclass(t, numbers.Real),
+                    f"{t.__name__} is not subclass of Real")
+            assert_(not isinstance(t(), numbers.Rational),
+                    f"{t.__name__} is instance of Rational")
+            assert_(not issubclass(t, numbers.Rational),
+                    f"{t.__name__} is subclass of Rational")
+
+    def test_complex(self):
+        for t in sctypes['complex']:
+            assert_(isinstance(t(), numbers.Complex),
+                    f"{t.__name__} is not instance of Complex")
+            assert_(issubclass(t, numbers.Complex),
+                    f"{t.__name__} is not subclass of Complex")
+            assert_(not isinstance(t(), numbers.Real),
+                    f"{t.__name__} is instance of Real")
+            assert_(not issubclass(t, numbers.Real),
+                    f"{t.__name__} is subclass of Real")
+
+    def test_int(self):
+        for t in sctypes['int']:
+            assert_(isinstance(t(), numbers.Integral),
+                    f"{t.__name__} is not instance of Integral")
+            assert_(issubclass(t, numbers.Integral),
+                    f"{t.__name__} is not subclass of Integral")
+
+    def test_uint(self):
+        for t in sctypes['uint']:
+            assert_(isinstance(t(), numbers.Integral),
+                    f"{t.__name__} is not instance of Integral")
+            assert_(issubclass(t, numbers.Integral),
+                    f"{t.__name__} is not subclass of Integral")
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_api.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_api.py
new file mode 100644
index 0000000000000000000000000000000000000000..ac2f03f63e352e53e8a2233f2d38e9074dc01878
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_api.py
@@ -0,0 +1,655 @@
+import sys
+
+import pytest
+
+import numpy as np
+import numpy._core.umath as ncu
+from numpy._core._rational_tests import rational
+from numpy.lib import stride_tricks
+from numpy.testing import (
+    HAS_REFCOUNT,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+
+def test_array_array():
+    tobj = type(object)
+    ones11 = np.ones((1, 1), np.float64)
+    tndarray = type(ones11)
+    # Test is_ndarray
+    assert_equal(np.array(ones11, dtype=np.float64), ones11)
+    if HAS_REFCOUNT:
+        old_refcount = sys.getrefcount(tndarray)
+        np.array(ones11)
+        assert_equal(old_refcount, sys.getrefcount(tndarray))
+
+    # test None
+    assert_equal(np.array(None, dtype=np.float64),
+                 np.array(np.nan, dtype=np.float64))
+    if HAS_REFCOUNT:
+        old_refcount = sys.getrefcount(tobj)
+        np.array(None, dtype=np.float64)
+        assert_equal(old_refcount, sys.getrefcount(tobj))
+
+    # test scalar
+    assert_equal(np.array(1.0, dtype=np.float64),
+                 np.ones((), dtype=np.float64))
+    if HAS_REFCOUNT:
+        old_refcount = sys.getrefcount(np.float64)
+        np.array(np.array(1.0, dtype=np.float64), dtype=np.float64)
+        assert_equal(old_refcount, sys.getrefcount(np.float64))
+
+    # test string
+    S2 = np.dtype((bytes, 2))
+    S3 = np.dtype((bytes, 3))
+    S5 = np.dtype((bytes, 5))
+    assert_equal(np.array(b"1.0", dtype=np.float64),
+                 np.ones((), dtype=np.float64))
+    assert_equal(np.array(b"1.0").dtype, S3)
+    assert_equal(np.array(b"1.0", dtype=bytes).dtype, S3)
+    assert_equal(np.array(b"1.0", dtype=S2), np.array(b"1."))
+    assert_equal(np.array(b"1", dtype=S5), np.ones((), dtype=S5))
+
+    # test string
+    U2 = np.dtype((str, 2))
+    U3 = np.dtype((str, 3))
+    U5 = np.dtype((str, 5))
+    assert_equal(np.array("1.0", dtype=np.float64),
+                 np.ones((), dtype=np.float64))
+    assert_equal(np.array("1.0").dtype, U3)
+    assert_equal(np.array("1.0", dtype=str).dtype, U3)
+    assert_equal(np.array("1.0", dtype=U2), np.array("1."))
+    assert_equal(np.array("1", dtype=U5), np.ones((), dtype=U5))
+
+    builtins = getattr(__builtins__, '__dict__', __builtins__)
+    assert_(hasattr(builtins, 'get'))
+
+    # test memoryview
+    dat = np.array(memoryview(b'1.0'), dtype=np.float64)
+    assert_equal(dat, [49.0, 46.0, 48.0])
+    assert_(dat.dtype.type is np.float64)
+
+    dat = np.array(memoryview(b'1.0'))
+    assert_equal(dat, [49, 46, 48])
+    assert_(dat.dtype.type is np.uint8)
+
+    # test array interface
+    a = np.array(100.0, dtype=np.float64)
+    o = type("o", (object,),
+             {"__array_interface__": a.__array_interface__})
+    assert_equal(np.array(o, dtype=np.float64), a)
+
+    # test array_struct interface
+    a = np.array([(1, 4.0, 'Hello'), (2, 6.0, 'World')],
+                 dtype=[('f0', int), ('f1', float), ('f2', str)])
+    o = type("o", (object,),
+             {"__array_struct__": a.__array_struct__})
+    # wasn't what I expected... is np.array(o) supposed to equal a ?
+    # instead we get an array([...], dtype=">V18")
+    assert_equal(bytes(np.array(o).data), bytes(a.data))
+
+    # test __array__
+    def custom__array__(self, dtype=None, copy=None):
+        return np.array(100.0, dtype=dtype, copy=copy)
+
+    o = type("o", (object,), {"__array__": custom__array__})()
+    assert_equal(np.array(o, dtype=np.float64), np.array(100.0, np.float64))
+
+    # test recursion
+    nested = 1.5
+    for i in range(ncu.MAXDIMS):
+        nested = [nested]
+
+    # no error
+    np.array(nested)
+
+    # Exceeds recursion limit
+    assert_raises(ValueError, np.array, [nested], dtype=np.float64)
+
+    # Try with lists...
+    # float32
+    assert_equal(np.array([None] * 10, dtype=np.float32),
+                 np.full((10,), np.nan, dtype=np.float32))
+    assert_equal(np.array([[None]] * 10, dtype=np.float32),
+                 np.full((10, 1), np.nan, dtype=np.float32))
+    assert_equal(np.array([[None] * 10], dtype=np.float32),
+                 np.full((1, 10), np.nan, dtype=np.float32))
+    assert_equal(np.array([[None] * 10] * 10, dtype=np.float32),
+                 np.full((10, 10), np.nan, dtype=np.float32))
+    # float64
+    assert_equal(np.array([None] * 10, dtype=np.float64),
+                 np.full((10,), np.nan, dtype=np.float64))
+    assert_equal(np.array([[None]] * 10, dtype=np.float64),
+                 np.full((10, 1), np.nan, dtype=np.float64))
+    assert_equal(np.array([[None] * 10], dtype=np.float64),
+                 np.full((1, 10), np.nan, dtype=np.float64))
+    assert_equal(np.array([[None] * 10] * 10, dtype=np.float64),
+                 np.full((10, 10), np.nan, dtype=np.float64))
+
+    assert_equal(np.array([1.0] * 10, dtype=np.float64),
+                 np.ones((10,), dtype=np.float64))
+    assert_equal(np.array([[1.0]] * 10, dtype=np.float64),
+                 np.ones((10, 1), dtype=np.float64))
+    assert_equal(np.array([[1.0] * 10], dtype=np.float64),
+                 np.ones((1, 10), dtype=np.float64))
+    assert_equal(np.array([[1.0] * 10] * 10, dtype=np.float64),
+                 np.ones((10, 10), dtype=np.float64))
+
+    # Try with tuples
+    assert_equal(np.array((None,) * 10, dtype=np.float64),
+                 np.full((10,), np.nan, dtype=np.float64))
+    assert_equal(np.array([(None,)] * 10, dtype=np.float64),
+                 np.full((10, 1), np.nan, dtype=np.float64))
+    assert_equal(np.array([(None,) * 10], dtype=np.float64),
+                 np.full((1, 10), np.nan, dtype=np.float64))
+    assert_equal(np.array([(None,) * 10] * 10, dtype=np.float64),
+                 np.full((10, 10), np.nan, dtype=np.float64))
+
+    assert_equal(np.array((1.0,) * 10, dtype=np.float64),
+                 np.ones((10,), dtype=np.float64))
+    assert_equal(np.array([(1.0,)] * 10, dtype=np.float64),
+                 np.ones((10, 1), dtype=np.float64))
+    assert_equal(np.array([(1.0,) * 10], dtype=np.float64),
+                 np.ones((1, 10), dtype=np.float64))
+    assert_equal(np.array([(1.0,) * 10] * 10, dtype=np.float64),
+                 np.ones((10, 10), dtype=np.float64))
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test___array___refcount():
+    class MyArray:
+        def __init__(self, dtype):
+            self.val = np.array(-1, dtype=dtype)
+
+        def __array__(self, dtype=None, copy=None):
+            return self.val.__array__(dtype=dtype, copy=copy)
+
+    # test all possible scenarios:
+    # dtype(none | same | different) x copy(true | false | none)
+    dt = np.dtype(np.int32)
+    old_refcount = sys.getrefcount(dt)
+    np.array(MyArray(dt))
+    assert_equal(old_refcount, sys.getrefcount(dt))
+    np.array(MyArray(dt), dtype=dt)
+    assert_equal(old_refcount, sys.getrefcount(dt))
+    np.array(MyArray(dt), copy=None)
+    assert_equal(old_refcount, sys.getrefcount(dt))
+    np.array(MyArray(dt), dtype=dt, copy=None)
+    assert_equal(old_refcount, sys.getrefcount(dt))
+    dt2 = np.dtype(np.int16)
+    old_refcount2 = sys.getrefcount(dt2)
+    np.array(MyArray(dt), dtype=dt2)
+    assert_equal(old_refcount2, sys.getrefcount(dt2))
+    np.array(MyArray(dt), dtype=dt2, copy=None)
+    assert_equal(old_refcount2, sys.getrefcount(dt2))
+    with pytest.raises(ValueError):
+        np.array(MyArray(dt), dtype=dt2, copy=False)
+    assert_equal(old_refcount2, sys.getrefcount(dt2))
+
+
+@pytest.mark.parametrize("array", [True, False])
+def test_array_impossible_casts(array):
+    # All builtin types can be forcibly cast, at least theoretically,
+    # but user dtypes cannot necessarily.
+    rt = rational(1, 2)
+    if array:
+        rt = np.array(rt)
+    with assert_raises(TypeError):
+        np.array(rt, dtype="M8")
+
+
+def test_array_astype():
+    a = np.arange(6, dtype='f4').reshape(2, 3)
+    # Default behavior: allows unsafe casts, keeps memory layout,
+    #                   always copies.
+    b = a.astype('i4')
+    assert_equal(a, b)
+    assert_equal(b.dtype, np.dtype('i4'))
+    assert_equal(a.strides, b.strides)
+    b = a.T.astype('i4')
+    assert_equal(a.T, b)
+    assert_equal(b.dtype, np.dtype('i4'))
+    assert_equal(a.T.strides, b.strides)
+    b = a.astype('f4')
+    assert_equal(a, b)
+    assert_(not (a is b))
+
+    # copy=False parameter skips a copy
+    b = a.astype('f4', copy=False)
+    assert_(a is b)
+
+    # order parameter allows overriding of the memory layout,
+    # forcing a copy if the layout is wrong
+    b = a.astype('f4', order='F', copy=False)
+    assert_equal(a, b)
+    assert_(not (a is b))
+    assert_(b.flags.f_contiguous)
+
+    b = a.astype('f4', order='C', copy=False)
+    assert_equal(a, b)
+    assert_(a is b)
+    assert_(b.flags.c_contiguous)
+
+    # casting parameter allows catching bad casts
+    b = a.astype('c8', casting='safe')
+    assert_equal(a, b)
+    assert_equal(b.dtype, np.dtype('c8'))
+
+    assert_raises(TypeError, a.astype, 'i4', casting='safe')
+
+    # subok=False passes through a non-subclassed array
+    b = a.astype('f4', subok=0, copy=False)
+    assert_(a is b)
+
+    class MyNDArray(np.ndarray):
+        pass
+
+    a = np.array([[0, 1, 2], [3, 4, 5]], dtype='f4').view(MyNDArray)
+
+    # subok=True passes through a subclass
+    b = a.astype('f4', subok=True, copy=False)
+    assert_(a is b)
+
+    # subok=True is default, and creates a subtype on a cast
+    b = a.astype('i4', copy=False)
+    assert_equal(a, b)
+    assert_equal(type(b), MyNDArray)
+
+    # subok=False never returns a subclass
+    b = a.astype('f4', subok=False, copy=False)
+    assert_equal(a, b)
+    assert_(not (a is b))
+    assert_(type(b) is not MyNDArray)
+
+    # Make sure converting from string object to fixed length string
+    # does not truncate.
+    a = np.array([b'a' * 100], dtype='O')
+    b = a.astype('S')
+    assert_equal(a, b)
+    assert_equal(b.dtype, np.dtype('S100'))
+    a = np.array(['a' * 100], dtype='O')
+    b = a.astype('U')
+    assert_equal(a, b)
+    assert_equal(b.dtype, np.dtype('U100'))
+
+    # Same test as above but for strings shorter than 64 characters
+    a = np.array([b'a' * 10], dtype='O')
+    b = a.astype('S')
+    assert_equal(a, b)
+    assert_equal(b.dtype, np.dtype('S10'))
+    a = np.array(['a' * 10], dtype='O')
+    b = a.astype('U')
+    assert_equal(a, b)
+    assert_equal(b.dtype, np.dtype('U10'))
+
+    a = np.array(123456789012345678901234567890, dtype='O').astype('S')
+    assert_array_equal(a, np.array(b'1234567890' * 3, dtype='S30'))
+    a = np.array(123456789012345678901234567890, dtype='O').astype('U')
+    assert_array_equal(a, np.array('1234567890' * 3, dtype='U30'))
+
+    a = np.array([123456789012345678901234567890], dtype='O').astype('S')
+    assert_array_equal(a, np.array(b'1234567890' * 3, dtype='S30'))
+    a = np.array([123456789012345678901234567890], dtype='O').astype('U')
+    assert_array_equal(a, np.array('1234567890' * 3, dtype='U30'))
+
+    a = np.array(123456789012345678901234567890, dtype='S')
+    assert_array_equal(a, np.array(b'1234567890' * 3, dtype='S30'))
+    a = np.array(123456789012345678901234567890, dtype='U')
+    assert_array_equal(a, np.array('1234567890' * 3, dtype='U30'))
+
+    a = np.array('a\u0140', dtype='U')
+    b = np.ndarray(buffer=a, dtype='uint32', shape=2)
+    assert_(b.size == 2)
+
+    a = np.array([1000], dtype='i4')
+    assert_raises(TypeError, a.astype, 'S1', casting='safe')
+
+    a = np.array(1000, dtype='i4')
+    assert_raises(TypeError, a.astype, 'U1', casting='safe')
+
+    # gh-24023
+    assert_raises(TypeError, a.astype)
+
+@pytest.mark.parametrize("dt", ["S", "U"])
+def test_array_astype_to_string_discovery_empty(dt):
+    # See also gh-19085
+    arr = np.array([""], dtype=object)
+    # Note, the itemsize is the `0 -> 1` logic, which should change.
+    # The important part the test is rather that it does not error.
+    assert arr.astype(dt).dtype.itemsize == np.dtype(f"{dt}1").itemsize
+
+    # check the same thing for `np.can_cast` (since it accepts arrays)
+    assert np.can_cast(arr, dt, casting="unsafe")
+    assert not np.can_cast(arr, dt, casting="same_kind")
+    # as well as for the object as a descriptor:
+    assert np.can_cast("O", dt, casting="unsafe")
+
+@pytest.mark.parametrize("dt", ["d", "f", "S13", "U32"])
+def test_array_astype_to_void(dt):
+    dt = np.dtype(dt)
+    arr = np.array([], dtype=dt)
+    assert arr.astype("V").dtype.itemsize == dt.itemsize
+
+def test_object_array_astype_to_void():
+    # This is different to `test_array_astype_to_void` as object arrays
+    # are inspected.  The default void is "V8" (8 is the length of double)
+    arr = np.array([], dtype="O").astype("V")
+    assert arr.dtype == "V8"
+
+@pytest.mark.parametrize("t",
+    np._core.sctypes['uint'] +
+    np._core.sctypes['int'] +
+    np._core.sctypes['float']
+)
+def test_array_astype_warning(t):
+    # test ComplexWarning when casting from complex to float or int
+    a = np.array(10, dtype=np.complex128)
+    pytest.warns(np.exceptions.ComplexWarning, a.astype, t)
+
+@pytest.mark.parametrize(["dtype", "out_dtype"],
+        [(np.bytes_, np.bool),
+         (np.str_, np.bool),
+         (np.dtype("S10,S9"), np.dtype("?,?")),
+         # The following also checks unaligned unicode access:
+         (np.dtype("S7,U9"), np.dtype("?,?"))])
+def test_string_to_boolean_cast(dtype, out_dtype):
+    # Only the last two (empty) strings are falsy (the `\0` is stripped):
+    arr = np.array(
+            ["10", "10\0\0\0", "0\0\0", "0", "False", " ", "", "\0"],
+            dtype=dtype)
+    expected = np.array(
+            [True, True, True, True, True, True, False, False],
+            dtype=out_dtype)
+    assert_array_equal(arr.astype(out_dtype), expected)
+    # As it's similar, check that nonzero behaves the same (structs are
+    # nonzero if all entries are)
+    assert_array_equal(np.nonzero(arr), np.nonzero(expected))
+
+@pytest.mark.parametrize("str_type", [str, bytes, np.str_])
+@pytest.mark.parametrize("scalar_type",
+        [np.complex64, np.complex128, np.clongdouble])
+def test_string_to_complex_cast(str_type, scalar_type):
+    value = scalar_type(b"1+3j")
+    assert scalar_type(value) == 1 + 3j
+    assert np.array([value], dtype=object).astype(scalar_type)[()] == 1 + 3j
+    assert np.array(value).astype(scalar_type)[()] == 1 + 3j
+    arr = np.zeros(1, dtype=scalar_type)
+    arr[0] = value
+    assert arr[0] == 1 + 3j
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+def test_none_to_nan_cast(dtype):
+    # Note that at the time of writing this test, the scalar constructors
+    # reject None
+    arr = np.zeros(1, dtype=dtype)
+    arr[0] = None
+    assert np.isnan(arr)[0]
+    assert np.isnan(np.array(None, dtype=dtype))[()]
+    assert np.isnan(np.array([None], dtype=dtype))[0]
+    assert np.isnan(np.array(None).astype(dtype))[()]
+
+def test_copyto_fromscalar():
+    a = np.arange(6, dtype='f4').reshape(2, 3)
+
+    # Simple copy
+    np.copyto(a, 1.5)
+    assert_equal(a, 1.5)
+    np.copyto(a.T, 2.5)
+    assert_equal(a, 2.5)
+
+    # Where-masked copy
+    mask = np.array([[0, 1, 0], [0, 0, 1]], dtype='?')
+    np.copyto(a, 3.5, where=mask)
+    assert_equal(a, [[2.5, 3.5, 2.5], [2.5, 2.5, 3.5]])
+    mask = np.array([[0, 1], [1, 1], [1, 0]], dtype='?')
+    np.copyto(a.T, 4.5, where=mask)
+    assert_equal(a, [[2.5, 4.5, 4.5], [4.5, 4.5, 3.5]])
+
+def test_copyto():
+    a = np.arange(6, dtype='i4').reshape(2, 3)
+
+    # Simple copy
+    np.copyto(a, [[3, 1, 5], [6, 2, 1]])
+    assert_equal(a, [[3, 1, 5], [6, 2, 1]])
+
+    # Overlapping copy should work
+    np.copyto(a[:, :2], a[::-1, 1::-1])
+    assert_equal(a, [[2, 6, 5], [1, 3, 1]])
+
+    # Defaults to 'same_kind' casting
+    assert_raises(TypeError, np.copyto, a, 1.5)
+
+    # Force a copy with 'unsafe' casting, truncating 1.5 to 1
+    np.copyto(a, 1.5, casting='unsafe')
+    assert_equal(a, 1)
+
+    # Copying with a mask
+    np.copyto(a, 3, where=[True, False, True])
+    assert_equal(a, [[3, 1, 3], [3, 1, 3]])
+
+    # Casting rule still applies with a mask
+    assert_raises(TypeError, np.copyto, a, 3.5, where=[True, False, True])
+
+    # Lists of integer 0's and 1's is ok too
+    np.copyto(a, 4.0, casting='unsafe', where=[[0, 1, 1], [1, 0, 0]])
+    assert_equal(a, [[3, 4, 4], [4, 1, 3]])
+
+    # Overlapping copy with mask should work
+    np.copyto(a[:, :2], a[::-1, 1::-1], where=[[0, 1], [1, 1]])
+    assert_equal(a, [[3, 4, 4], [4, 3, 3]])
+
+    # 'dst' must be an array
+    assert_raises(TypeError, np.copyto, [1, 2, 3], [2, 3, 4])
+
+
+def test_copyto_cast_safety():
+    with pytest.raises(TypeError):
+        np.copyto(np.arange(3), 3., casting="safe")
+
+    # Can put integer and float scalars safely (and equiv):
+    np.copyto(np.arange(3), 3, casting="equiv")
+    np.copyto(np.arange(3.), 3., casting="equiv")
+    # And also with less precision safely:
+    np.copyto(np.arange(3, dtype="uint8"), 3, casting="safe")
+    np.copyto(np.arange(3., dtype="float32"), 3., casting="safe")
+
+    # But not equiv:
+    with pytest.raises(TypeError):
+        np.copyto(np.arange(3, dtype="uint8"), 3, casting="equiv")
+
+    with pytest.raises(TypeError):
+        np.copyto(np.arange(3., dtype="float32"), 3., casting="equiv")
+
+    # As a special thing, object is equiv currently:
+    np.copyto(np.arange(3, dtype=object), 3, casting="equiv")
+
+    # The following raises an overflow error/gives a warning but not
+    # type error (due to casting), though:
+    with pytest.raises(OverflowError):
+        np.copyto(np.arange(3), 2**80, casting="safe")
+
+    with pytest.warns(RuntimeWarning):
+        np.copyto(np.arange(3, dtype=np.float32), 2e300, casting="safe")
+
+
+def test_copyto_permut():
+    # test explicit overflow case
+    pad = 500
+    l = [True] * pad + [True, True, True, True]
+    r = np.zeros(len(l) - pad)
+    d = np.ones(len(l) - pad)
+    mask = np.array(l)[pad:]
+    np.copyto(r, d, where=mask[::-1])
+
+    # test all permutation of possible masks, 9 should be sufficient for
+    # current 4 byte unrolled code
+    power = 9
+    d = np.ones(power)
+    for i in range(2**power):
+        r = np.zeros(power)
+        l = [(i & x) != 0 for x in range(power)]
+        mask = np.array(l)
+        np.copyto(r, d, where=mask)
+        assert_array_equal(r == 1, l)
+        assert_equal(r.sum(), sum(l))
+
+        r = np.zeros(power)
+        np.copyto(r, d, where=mask[::-1])
+        assert_array_equal(r == 1, l[::-1])
+        assert_equal(r.sum(), sum(l))
+
+        r = np.zeros(power)
+        np.copyto(r[::2], d[::2], where=mask[::2])
+        assert_array_equal(r[::2] == 1, l[::2])
+        assert_equal(r[::2].sum(), sum(l[::2]))
+
+        r = np.zeros(power)
+        np.copyto(r[::2], d[::2], where=mask[::-2])
+        assert_array_equal(r[::2] == 1, l[::-2])
+        assert_equal(r[::2].sum(), sum(l[::-2]))
+
+        for c in [0xFF, 0x7F, 0x02, 0x10]:
+            r = np.zeros(power)
+            mask = np.array(l)
+            imask = np.array(l).view(np.uint8)
+            imask[mask != 0] = c
+            np.copyto(r, d, where=mask)
+            assert_array_equal(r == 1, l)
+            assert_equal(r.sum(), sum(l))
+
+    r = np.zeros(power)
+    np.copyto(r, d, where=True)
+    assert_equal(r.sum(), r.size)
+    r = np.ones(power)
+    d = np.zeros(power)
+    np.copyto(r, d, where=False)
+    assert_equal(r.sum(), r.size)
+
+def test_copy_order():
+    a = np.arange(24).reshape(2, 1, 3, 4)
+    b = a.copy(order='F')
+    c = np.arange(24).reshape(2, 1, 4, 3).swapaxes(2, 3)
+
+    def check_copy_result(x, y, ccontig, fcontig, strides=False):
+        assert_(not (x is y))
+        assert_equal(x, y)
+        assert_equal(res.flags.c_contiguous, ccontig)
+        assert_equal(res.flags.f_contiguous, fcontig)
+
+    # Validate the initial state of a, b, and c
+    assert_(a.flags.c_contiguous)
+    assert_(not a.flags.f_contiguous)
+    assert_(not b.flags.c_contiguous)
+    assert_(b.flags.f_contiguous)
+    assert_(not c.flags.c_contiguous)
+    assert_(not c.flags.f_contiguous)
+
+    # Copy with order='C'
+    res = a.copy(order='C')
+    check_copy_result(res, a, ccontig=True, fcontig=False, strides=True)
+    res = b.copy(order='C')
+    check_copy_result(res, b, ccontig=True, fcontig=False, strides=False)
+    res = c.copy(order='C')
+    check_copy_result(res, c, ccontig=True, fcontig=False, strides=False)
+    res = np.copy(a, order='C')
+    check_copy_result(res, a, ccontig=True, fcontig=False, strides=True)
+    res = np.copy(b, order='C')
+    check_copy_result(res, b, ccontig=True, fcontig=False, strides=False)
+    res = np.copy(c, order='C')
+    check_copy_result(res, c, ccontig=True, fcontig=False, strides=False)
+
+    # Copy with order='F'
+    res = a.copy(order='F')
+    check_copy_result(res, a, ccontig=False, fcontig=True, strides=False)
+    res = b.copy(order='F')
+    check_copy_result(res, b, ccontig=False, fcontig=True, strides=True)
+    res = c.copy(order='F')
+    check_copy_result(res, c, ccontig=False, fcontig=True, strides=False)
+    res = np.copy(a, order='F')
+    check_copy_result(res, a, ccontig=False, fcontig=True, strides=False)
+    res = np.copy(b, order='F')
+    check_copy_result(res, b, ccontig=False, fcontig=True, strides=True)
+    res = np.copy(c, order='F')
+    check_copy_result(res, c, ccontig=False, fcontig=True, strides=False)
+
+    # Copy with order='K'
+    res = a.copy(order='K')
+    check_copy_result(res, a, ccontig=True, fcontig=False, strides=True)
+    res = b.copy(order='K')
+    check_copy_result(res, b, ccontig=False, fcontig=True, strides=True)
+    res = c.copy(order='K')
+    check_copy_result(res, c, ccontig=False, fcontig=False, strides=True)
+    res = np.copy(a, order='K')
+    check_copy_result(res, a, ccontig=True, fcontig=False, strides=True)
+    res = np.copy(b, order='K')
+    check_copy_result(res, b, ccontig=False, fcontig=True, strides=True)
+    res = np.copy(c, order='K')
+    check_copy_result(res, c, ccontig=False, fcontig=False, strides=True)
+
+def test_contiguous_flags():
+    a = np.ones((4, 4, 1))[::2, :, :]
+    a = stride_tricks.as_strided(a, strides=a.strides[:2] + (-123,))
+    b = np.ones((2, 2, 1, 2, 2)).swapaxes(3, 4)
+
+    def check_contig(a, ccontig, fcontig):
+        assert_(a.flags.c_contiguous == ccontig)
+        assert_(a.flags.f_contiguous == fcontig)
+
+    # Check if new arrays are correct:
+    check_contig(a, False, False)
+    check_contig(b, False, False)
+    check_contig(np.empty((2, 2, 0, 2, 2)), True, True)
+    check_contig(np.array([[[1], [2]]], order='F'), True, True)
+    check_contig(np.empty((2, 2)), True, False)
+    check_contig(np.empty((2, 2), order='F'), False, True)
+
+    # Check that np.array creates correct contiguous flags:
+    check_contig(np.array(a, copy=None), False, False)
+    check_contig(np.array(a, copy=None, order='C'), True, False)
+    check_contig(np.array(a, ndmin=4, copy=None, order='F'), False, True)
+
+    # Check slicing update of flags and :
+    check_contig(a[0], True, True)
+    check_contig(a[None, ::4, ..., None], True, True)
+    check_contig(b[0, 0, ...], False, True)
+    check_contig(b[:, :, 0:0, :, :], True, True)
+
+    # Test ravel and squeeze.
+    check_contig(a.ravel(), True, True)
+    check_contig(np.ones((1, 3, 1)).squeeze(), True, True)
+
+def test_broadcast_arrays():
+    # Test user defined dtypes
+    dtype = 'u4,u4,u4'
+    a = np.array([(1, 2, 3)], dtype=dtype)
+    b = np.array([(1, 2, 3), (4, 5, 6), (7, 8, 9)], dtype=dtype)
+    result = np.broadcast_arrays(a, b)
+    assert_equal(result[0], np.array([(1, 2, 3), (1, 2, 3), (1, 2, 3)], dtype=dtype))
+    assert_equal(result[1], np.array([(1, 2, 3), (4, 5, 6), (7, 8, 9)], dtype=dtype))
+
+@pytest.mark.parametrize(["shape", "fill_value", "expected_output"],
+        [((2, 2), [5.0,  6.0], np.array([[5.0, 6.0], [5.0, 6.0]])),
+         ((3, 2), [1.0,  2.0], np.array([[1.0, 2.0], [1.0, 2.0], [1.0,  2.0]]))])
+def test_full_from_list(shape, fill_value, expected_output):
+    output = np.full(shape, fill_value)
+    assert_equal(output, expected_output)
+
+def test_astype_copyflag():
+    # test the various copyflag options
+    arr = np.arange(10, dtype=np.intp)
+
+    res_true = arr.astype(np.intp, copy=True)
+    assert not np.shares_memory(arr, res_true)
+
+    res_false = arr.astype(np.intp, copy=False)
+    assert np.shares_memory(arr, res_false)
+
+    res_false_float = arr.astype(np.float64, copy=False)
+    assert not np.shares_memory(arr, res_false_float)
+
+    # _CopyMode enum isn't allowed
+    assert_raises(ValueError, arr.astype, np.float64,
+                  copy=np._CopyMode.NEVER)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_argparse.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_argparse.py
new file mode 100644
index 0000000000000000000000000000000000000000..f61193b4ebe33e71ad44406ef4f4e90664690c74
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_argparse.py
@@ -0,0 +1,90 @@
+"""
+Tests for the private NumPy argument parsing functionality.
+They mainly exists to ensure good test coverage without having to try the
+weirder cases on actual numpy functions but test them in one place.
+
+The test function is defined in C to be equivalent to (errors may not always
+match exactly, and could be adjusted):
+
+    def func(arg1, /, arg2, *, arg3):
+        i = integer(arg1)  # reproducing the 'i' parsing in Python.
+        return None
+"""
+
+import threading
+
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_tests import (
+    argparse_example_function as func,
+    threaded_argparse_example_function as thread_func,
+)
+from numpy.testing import IS_WASM
+
+
+@pytest.mark.skipif(IS_WASM, reason="wasm doesn't have support for threads")
+def test_thread_safe_argparse_cache():
+    b = threading.Barrier(8)
+
+    def call_thread_func():
+        b.wait()
+        thread_func(arg1=3, arg2=None)
+
+    tasks = [threading.Thread(target=call_thread_func) for _ in range(8)]
+    [t.start() for t in tasks]
+    [t.join() for t in tasks]
+
+
+def test_invalid_integers():
+    with pytest.raises(TypeError,
+            match="integer argument expected, got float"):
+        func(1.)
+    with pytest.raises(OverflowError):
+        func(2**100)
+
+
+def test_missing_arguments():
+    with pytest.raises(TypeError,
+            match="missing required positional argument 0"):
+        func()
+    with pytest.raises(TypeError,
+            match="missing required positional argument 0"):
+        func(arg2=1, arg3=4)
+    with pytest.raises(TypeError,
+            match=r"missing required argument \'arg2\' \(pos 1\)"):
+        func(1, arg3=5)
+
+
+def test_too_many_positional():
+    # the second argument is positional but can be passed as keyword.
+    with pytest.raises(TypeError,
+            match="takes from 2 to 3 positional arguments but 4 were given"):
+        func(1, 2, 3, 4)
+
+
+def test_multiple_values():
+    with pytest.raises(TypeError,
+            match=r"given by name \('arg2'\) and position \(position 1\)"):
+        func(1, 2, arg2=3)
+
+
+def test_string_fallbacks():
+    # We can (currently?) use numpy strings to test the "slow" fallbacks
+    # that should normally not be taken due to string interning.
+    arg2 = np.str_("arg2")
+    missing_arg = np.str_("missing_arg")
+    func(1, **{arg2: 3})
+    with pytest.raises(TypeError,
+            match="got an unexpected keyword argument 'missing_arg'"):
+        func(2, **{missing_arg: 3})
+
+
+def test_too_many_arguments_method_forwarding():
+    # Not directly related to the standard argument parsing, but we sometimes
+    # forward methods to Python: arr.mean() calls np._core._methods._mean()
+    # This adds code coverage for this `npy_forward_method`.
+    arr = np.arange(3)
+    args = range(1000)
+    with pytest.raises(TypeError):
+        arr.mean(*args)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_api_info.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_api_info.py
new file mode 100644
index 0000000000000000000000000000000000000000..401a12fcc319efb432d7a474bfd611554f4ee81d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_api_info.py
@@ -0,0 +1,113 @@
+import pytest
+
+import numpy as np
+
+info = np.__array_namespace_info__()
+
+
+def test_capabilities():
+    caps = info.capabilities()
+    assert caps["boolean indexing"] is True
+    assert caps["data-dependent shapes"] is True
+
+    # This will be added in the 2024.12 release of the array API standard.
+
+    # assert caps["max rank"] == 64
+    # np.zeros((1,)*64)
+    # with pytest.raises(ValueError):
+    #     np.zeros((1,)*65)
+
+
+def test_default_device():
+    assert info.default_device() == "cpu" == np.asarray(0).device
+
+
+def test_default_dtypes():
+    dtypes = info.default_dtypes()
+    assert dtypes["real floating"] == np.float64 == np.asarray(0.0).dtype
+    assert dtypes["complex floating"] == np.complex128 == \
+        np.asarray(0.0j).dtype
+    assert dtypes["integral"] == np.intp == np.asarray(0).dtype
+    assert dtypes["indexing"] == np.intp == np.argmax(np.zeros(10)).dtype
+
+    with pytest.raises(ValueError, match="Device not understood"):
+        info.default_dtypes(device="gpu")
+
+
+def test_dtypes_all():
+    dtypes = info.dtypes()
+    assert dtypes == {
+        "bool": np.bool_,
+        "int8": np.int8,
+        "int16": np.int16,
+        "int32": np.int32,
+        "int64": np.int64,
+        "uint8": np.uint8,
+        "uint16": np.uint16,
+        "uint32": np.uint32,
+        "uint64": np.uint64,
+        "float32": np.float32,
+        "float64": np.float64,
+        "complex64": np.complex64,
+        "complex128": np.complex128,
+    }
+
+
+dtype_categories = {
+    "bool": {"bool": np.bool_},
+    "signed integer": {
+        "int8": np.int8,
+        "int16": np.int16,
+        "int32": np.int32,
+        "int64": np.int64,
+    },
+    "unsigned integer": {
+        "uint8": np.uint8,
+        "uint16": np.uint16,
+        "uint32": np.uint32,
+        "uint64": np.uint64,
+    },
+    "integral": ("signed integer", "unsigned integer"),
+    "real floating": {"float32": np.float32, "float64": np.float64},
+    "complex floating": {"complex64": np.complex64, "complex128":
+                         np.complex128},
+    "numeric": ("integral", "real floating", "complex floating"),
+}
+
+
+@pytest.mark.parametrize("kind", dtype_categories)
+def test_dtypes_kind(kind):
+    expected = dtype_categories[kind]
+    if isinstance(expected, tuple):
+        assert info.dtypes(kind=kind) == info.dtypes(kind=expected)
+    else:
+        assert info.dtypes(kind=kind) == expected
+
+
+def test_dtypes_tuple():
+    dtypes = info.dtypes(kind=("bool", "integral"))
+    assert dtypes == {
+        "bool": np.bool_,
+        "int8": np.int8,
+        "int16": np.int16,
+        "int32": np.int32,
+        "int64": np.int64,
+        "uint8": np.uint8,
+        "uint16": np.uint16,
+        "uint32": np.uint32,
+        "uint64": np.uint64,
+    }
+
+
+def test_dtypes_invalid_kind():
+    with pytest.raises(ValueError, match="unsupported kind"):
+        info.dtypes(kind="invalid")
+
+
+def test_dtypes_invalid_device():
+    with pytest.raises(ValueError, match="Device not understood"):
+        info.dtypes(device="gpu")
+
+
+def test_devices():
+    assert info.devices() == ["cpu"]
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_coercion.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_coercion.py
new file mode 100644
index 0000000000000000000000000000000000000000..64912293f1587b153186a029b80913469318533a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_coercion.py
@@ -0,0 +1,928 @@
+"""
+Tests for array coercion, mainly through testing `np.array` results directly.
+Note that other such tests exist, e.g., in `test_api.py` and many corner-cases
+are tested (sometimes indirectly) elsewhere.
+"""
+
+from itertools import permutations, product
+
+import pytest
+from pytest import param
+
+import numpy as np
+import numpy._core._multiarray_umath as ncu
+from numpy._core._rational_tests import rational
+from numpy.testing import IS_64BIT, IS_PYPY, assert_array_equal
+
+
+def arraylikes():
+    """
+    Generator for functions converting an array into various array-likes.
+    If full is True (default) it includes array-likes not capable of handling
+    all dtypes.
+    """
+    # base array:
+    def ndarray(a):
+        return a
+
+    yield param(ndarray, id="ndarray")
+
+    # subclass:
+    class MyArr(np.ndarray):
+        pass
+
+    def subclass(a):
+        return a.view(MyArr)
+
+    yield subclass
+
+    class _SequenceLike:
+        # Older NumPy versions, sometimes cared whether a protocol array was
+        # also _SequenceLike.  This shouldn't matter, but keep it for now
+        # for __array__ and not the others.
+        def __len__(self):
+            raise TypeError
+
+        def __getitem__(self, _, /):
+            raise TypeError
+
+    # Array-interface
+    class ArrayDunder(_SequenceLike):
+        def __init__(self, a):
+            self.a = a
+
+        def __array__(self, dtype=None, copy=None):
+            if dtype is None:
+                return self.a
+            return self.a.astype(dtype)
+
+    yield param(ArrayDunder, id="__array__")
+
+    # memory-view
+    yield param(memoryview, id="memoryview")
+
+    # Array-interface
+    class ArrayInterface:
+        def __init__(self, a):
+            self.a = a  # need to hold on to keep interface valid
+            self.__array_interface__ = a.__array_interface__
+
+    yield param(ArrayInterface, id="__array_interface__")
+
+    # Array-Struct
+    class ArrayStruct:
+        def __init__(self, a):
+            self.a = a  # need to hold on to keep struct valid
+            self.__array_struct__ = a.__array_struct__
+
+    yield param(ArrayStruct, id="__array_struct__")
+
+
+def scalar_instances(times=True, extended_precision=True, user_dtype=True):
+    # Hard-coded list of scalar instances.
+    # Floats:
+    yield param(np.sqrt(np.float16(5)), id="float16")
+    yield param(np.sqrt(np.float32(5)), id="float32")
+    yield param(np.sqrt(np.float64(5)), id="float64")
+    if extended_precision:
+        yield param(np.sqrt(np.longdouble(5)), id="longdouble")
+
+    # Complex:
+    yield param(np.sqrt(np.complex64(2 + 3j)), id="complex64")
+    yield param(np.sqrt(np.complex128(2 + 3j)), id="complex128")
+    if extended_precision:
+        yield param(np.sqrt(np.clongdouble(2 + 3j)), id="clongdouble")
+
+    # Bool:
+    # XFAIL: Bool should be added, but has some bad properties when it
+    # comes to strings, see also gh-9875
+    # yield param(np.bool(0), id="bool")
+
+    # Integers:
+    yield param(np.int8(2), id="int8")
+    yield param(np.int16(2), id="int16")
+    yield param(np.int32(2), id="int32")
+    yield param(np.int64(2), id="int64")
+
+    yield param(np.uint8(2), id="uint8")
+    yield param(np.uint16(2), id="uint16")
+    yield param(np.uint32(2), id="uint32")
+    yield param(np.uint64(2), id="uint64")
+
+    # Rational:
+    if user_dtype:
+        yield param(rational(1, 2), id="rational")
+
+    # Cannot create a structured void scalar directly:
+    structured = np.array([(1, 3)], "i,i")[0]
+    assert isinstance(structured, np.void)
+    assert structured.dtype == np.dtype("i,i")
+    yield param(structured, id="structured")
+
+    if times:
+        # Datetimes and timedelta
+        yield param(np.timedelta64(2), id="timedelta64[generic]")
+        yield param(np.timedelta64(23, "s"), id="timedelta64[s]")
+        yield param(np.timedelta64("NaT", "s"), id="timedelta64[s](NaT)")
+
+        yield param(np.datetime64("NaT"), id="datetime64[generic](NaT)")
+        yield param(np.datetime64("2020-06-07 12:43", "ms"), id="datetime64[ms]")
+
+    # Strings and unstructured void:
+    yield param(np.bytes_(b"1234"), id="bytes")
+    yield param(np.str_("2345"), id="unicode")
+    yield param(np.void(b"4321"), id="unstructured_void")
+
+
+def is_parametric_dtype(dtype):
+    """Returns True if the dtype is a parametric legacy dtype (itemsize
+    is 0, or a datetime without units)
+    """
+    if dtype.itemsize == 0:
+        return True
+    if issubclass(dtype.type, (np.datetime64, np.timedelta64)):
+        if dtype.name.endswith("64"):
+            # Generic time units
+            return True
+    return False
+
+
+class TestStringDiscovery:
+    @pytest.mark.parametrize("obj",
+            [object(), 1.2, 10**43, None, "string"],
+            ids=["object", "1.2", "10**43", "None", "string"])
+    def test_basic_stringlength(self, obj):
+        length = len(str(obj))
+        expected = np.dtype(f"S{length}")
+
+        assert np.array(obj, dtype="S").dtype == expected
+        assert np.array([obj], dtype="S").dtype == expected
+
+        # A nested array is also discovered correctly
+        arr = np.array(obj, dtype="O")
+        assert np.array(arr, dtype="S").dtype == expected
+        # Also if we use the dtype class
+        assert np.array(arr, dtype=type(expected)).dtype == expected
+        # Check that .astype() behaves identical
+        assert arr.astype("S").dtype == expected
+        # The DType class is accepted by `.astype()`
+        assert arr.astype(type(np.dtype("S"))).dtype == expected
+
+    @pytest.mark.parametrize("obj",
+            [object(), 1.2, 10**43, None, "string"],
+            ids=["object", "1.2", "10**43", "None", "string"])
+    def test_nested_arrays_stringlength(self, obj):
+        length = len(str(obj))
+        expected = np.dtype(f"S{length}")
+        arr = np.array(obj, dtype="O")
+        assert np.array([arr, arr], dtype="S").dtype == expected
+
+    @pytest.mark.parametrize("arraylike", arraylikes())
+    def test_unpack_first_level(self, arraylike):
+        # We unpack exactly one level of array likes
+        obj = np.array([None])
+        obj[0] = np.array(1.2)
+        # the length of the included item, not of the float dtype
+        length = len(str(obj[0]))
+        expected = np.dtype(f"S{length}")
+
+        obj = arraylike(obj)
+        # casting to string usually calls str(obj)
+        arr = np.array([obj], dtype="S")
+        assert arr.shape == (1, 1)
+        assert arr.dtype == expected
+
+
+class TestScalarDiscovery:
+    def test_void_special_case(self):
+        # Void dtypes with structures discover tuples as elements
+        arr = np.array((1, 2, 3), dtype="i,i,i")
+        assert arr.shape == ()
+        arr = np.array([(1, 2, 3)], dtype="i,i,i")
+        assert arr.shape == (1,)
+
+    def test_char_special_case(self):
+        arr = np.array("string", dtype="c")
+        assert arr.shape == (6,)
+        assert arr.dtype.char == "c"
+        arr = np.array(["string"], dtype="c")
+        assert arr.shape == (1, 6)
+        assert arr.dtype.char == "c"
+
+    def test_char_special_case_deep(self):
+        # Check that the character special case errors correctly if the
+        # array is too deep:
+        nested = ["string"]  # 2 dimensions (due to string being sequence)
+        for i in range(ncu.MAXDIMS - 2):
+            nested = [nested]
+
+        arr = np.array(nested, dtype='c')
+        assert arr.shape == (1,) * (ncu.MAXDIMS - 1) + (6,)
+        with pytest.raises(ValueError):
+            np.array([nested], dtype="c")
+
+    def test_unknown_object(self):
+        arr = np.array(object())
+        assert arr.shape == ()
+        assert arr.dtype == np.dtype("O")
+
+    @pytest.mark.parametrize("scalar", scalar_instances())
+    def test_scalar(self, scalar):
+        arr = np.array(scalar)
+        assert arr.shape == ()
+        assert arr.dtype == scalar.dtype
+
+        arr = np.array([[scalar, scalar]])
+        assert arr.shape == (1, 2)
+        assert arr.dtype == scalar.dtype
+
+    # Additionally to string this test also runs into a corner case
+    # with datetime promotion (the difference is the promotion order).
+    @pytest.mark.filterwarnings("ignore:Promotion of numbers:FutureWarning")
+    def test_scalar_promotion(self):
+        for sc1, sc2 in product(scalar_instances(), scalar_instances()):
+            sc1, sc2 = sc1.values[0], sc2.values[0]
+            # test all combinations:
+            try:
+                arr = np.array([sc1, sc2])
+            except (TypeError, ValueError):
+                # The promotion between two times can fail
+                # XFAIL (ValueError): Some object casts are currently undefined
+                continue
+            assert arr.shape == (2,)
+            try:
+                dt1, dt2 = sc1.dtype, sc2.dtype
+                expected_dtype = np.promote_types(dt1, dt2)
+                assert arr.dtype == expected_dtype
+            except TypeError as e:
+                # Will currently always go to object dtype
+                assert arr.dtype == np.dtype("O")
+
+    @pytest.mark.parametrize("scalar", scalar_instances())
+    def test_scalar_coercion(self, scalar):
+        # This tests various scalar coercion paths, mainly for the numerical
+        # types. It includes some paths not directly related to `np.array`.
+        if isinstance(scalar, np.inexact):
+            # Ensure we have a full-precision number if available
+            scalar = type(scalar)((scalar * 2)**0.5)
+
+        # Use casting from object:
+        arr = np.array(scalar, dtype=object).astype(scalar.dtype)
+
+        # Test various ways to create an array containing this scalar:
+        arr1 = np.array(scalar).reshape(1)
+        arr2 = np.array([scalar])
+        arr3 = np.empty(1, dtype=scalar.dtype)
+        arr3[0] = scalar
+        arr4 = np.empty(1, dtype=scalar.dtype)
+        arr4[:] = [scalar]
+        # All of these methods should yield the same results
+        assert_array_equal(arr, arr1)
+        assert_array_equal(arr, arr2)
+        assert_array_equal(arr, arr3)
+        assert_array_equal(arr, arr4)
+
+    @pytest.mark.xfail(IS_PYPY, reason="`int(np.complex128(3))` fails on PyPy")
+    @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+    @pytest.mark.parametrize("cast_to", scalar_instances())
+    def test_scalar_coercion_same_as_cast_and_assignment(self, cast_to):
+        """
+        Test that in most cases:
+           * `np.array(scalar, dtype=dtype)`
+           * `np.empty((), dtype=dtype)[()] = scalar`
+           * `np.array(scalar).astype(dtype)`
+        should behave the same.  The only exceptions are parametric dtypes
+        (mainly datetime/timedelta without unit) and void without fields.
+        """
+        dtype = cast_to.dtype  # use to parametrize only the target dtype
+
+        for scalar in scalar_instances(times=False):
+            scalar = scalar.values[0]
+
+            if dtype.type == np.void:
+                if scalar.dtype.fields is not None and dtype.fields is None:
+                    # Here, coercion to "V6" works, but the cast fails.
+                    # Since the types are identical, SETITEM takes care of
+                    # this, but has different rules than the cast.
+                    with pytest.raises(TypeError):
+                        np.array(scalar).astype(dtype)
+                    np.array(scalar, dtype=dtype)
+                    np.array([scalar], dtype=dtype)
+                    continue
+
+            # The main test, we first try to use casting and if it succeeds
+            # continue below testing that things are the same, otherwise
+            # test that the alternative paths at least also fail.
+            try:
+                cast = np.array(scalar).astype(dtype)
+            except (TypeError, ValueError, RuntimeError):
+                # coercion should also raise (error type may change)
+                with pytest.raises(Exception):  # noqa: B017
+                    np.array(scalar, dtype=dtype)
+
+                if (isinstance(scalar, rational) and
+                        np.issubdtype(dtype, np.signedinteger)):
+                    return
+
+                with pytest.raises(Exception):  # noqa: B017
+                    np.array([scalar], dtype=dtype)
+                # assignment should also raise
+                res = np.zeros((), dtype=dtype)
+                with pytest.raises(Exception):  # noqa: B017
+                    res[()] = scalar
+
+                return
+
+            # Non error path:
+            arr = np.array(scalar, dtype=dtype)
+            assert_array_equal(arr, cast)
+            # assignment behaves the same
+            ass = np.zeros((), dtype=dtype)
+            ass[()] = scalar
+            assert_array_equal(ass, cast)
+
+    @pytest.mark.parametrize("pyscalar", [10, 10.32, 10.14j, 10**100])
+    def test_pyscalar_subclasses(self, pyscalar):
+        """NumPy arrays are read/write which means that anything but invariant
+        behaviour is on thin ice.  However, we currently are happy to discover
+        subclasses of Python float, int, complex the same as the base classes.
+        This should potentially be deprecated.
+        """
+        class MyScalar(type(pyscalar)):
+            pass
+
+        res = np.array(MyScalar(pyscalar))
+        expected = np.array(pyscalar)
+        assert_array_equal(res, expected)
+
+    @pytest.mark.parametrize("dtype_char", np.typecodes["All"])
+    def test_default_dtype_instance(self, dtype_char):
+        if dtype_char in "SU":
+            dtype = np.dtype(dtype_char + "1")
+        elif dtype_char == "V":
+            # Legacy behaviour was to use V8. The reason was float64 being the
+            # default dtype and that having 8 bytes.
+            dtype = np.dtype("V8")
+        else:
+            dtype = np.dtype(dtype_char)
+
+        discovered_dtype, _ = ncu._discover_array_parameters([], type(dtype))
+
+        assert discovered_dtype == dtype
+        assert discovered_dtype.itemsize == dtype.itemsize
+
+    @pytest.mark.parametrize("dtype", np.typecodes["Integer"])
+    @pytest.mark.parametrize(["scalar", "error"],
+            [(np.float64(np.nan), ValueError),
+             (np.array(-1).astype(np.ulonglong)[()], OverflowError)])
+    def test_scalar_to_int_coerce_does_not_cast(self, dtype, scalar, error):
+        """
+        Signed integers are currently different in that they do not cast other
+        NumPy scalar, but instead use scalar.__int__(). The hardcoded
+        exception to this rule is `np.array(scalar, dtype=integer)`.
+        """
+        dtype = np.dtype(dtype)
+
+        # This is a special case using casting logic. It warns for the NaN
+        # but allows the cast (giving undefined behaviour).
+        with np.errstate(invalid="ignore"):
+            coerced = np.array(scalar, dtype=dtype)
+            cast = np.array(scalar).astype(dtype)
+        assert_array_equal(coerced, cast)
+
+        # However these fail:
+        with pytest.raises(error):
+            np.array([scalar], dtype=dtype)
+        with pytest.raises(error):
+            cast[()] = scalar
+
+
+class TestTimeScalars:
+    @pytest.mark.parametrize("dtype", [np.int64, np.float32])
+    @pytest.mark.parametrize("scalar",
+            [param(np.timedelta64("NaT", "s"), id="timedelta64[s](NaT)"),
+             param(np.timedelta64(123, "s"), id="timedelta64[s]"),
+             param(np.datetime64("NaT", "generic"), id="datetime64[generic](NaT)"),
+             param(np.datetime64(1, "D"), id="datetime64[D]")],)
+    def test_coercion_basic(self, dtype, scalar):
+        # Note the `[scalar]` is there because np.array(scalar) uses stricter
+        # `scalar.__int__()` rules for backward compatibility right now.
+        arr = np.array(scalar, dtype=dtype)
+        cast = np.array(scalar).astype(dtype)
+        assert_array_equal(arr, cast)
+
+        ass = np.ones((), dtype=dtype)
+        if issubclass(dtype, np.integer):
+            with pytest.raises(TypeError):
+                # raises, as would np.array([scalar], dtype=dtype), this is
+                # conversion from times, but behaviour of integers.
+                ass[()] = scalar
+        else:
+            ass[()] = scalar
+            assert_array_equal(ass, cast)
+
+    @pytest.mark.parametrize("dtype", [np.int64, np.float32])
+    @pytest.mark.parametrize("scalar",
+            [param(np.timedelta64(123, "ns"), id="timedelta64[ns]"),
+             param(np.timedelta64(12, "generic"), id="timedelta64[generic]")])
+    def test_coercion_timedelta_convert_to_number(self, dtype, scalar):
+        # Only "ns" and "generic" timedeltas can be converted to numbers
+        # so these are slightly special.
+        arr = np.array(scalar, dtype=dtype)
+        cast = np.array(scalar).astype(dtype)
+        ass = np.ones((), dtype=dtype)
+        ass[()] = scalar  # raises, as would np.array([scalar], dtype=dtype)
+
+        assert_array_equal(arr, cast)
+        assert_array_equal(cast, cast)
+
+    @pytest.mark.parametrize("dtype", ["S6", "U6"])
+    @pytest.mark.parametrize(["val", "unit"],
+            [param(123, "s", id="[s]"), param(123, "D", id="[D]")])
+    def test_coercion_assignment_datetime(self, val, unit, dtype):
+        # String from datetime64 assignment is currently special cased to
+        # never use casting.  This is because casting will error in this
+        # case, and traditionally in most cases the behaviour is maintained
+        # like this.  (`np.array(scalar, dtype="U6")` would have failed before)
+        # TODO: This discrepancy _should_ be resolved, either by relaxing the
+        #       cast, or by deprecating the first part.
+        scalar = np.datetime64(val, unit)
+        dtype = np.dtype(dtype)
+        cut_string = dtype.type(str(scalar)[:6])
+
+        arr = np.array(scalar, dtype=dtype)
+        assert arr[()] == cut_string
+        ass = np.ones((), dtype=dtype)
+        ass[()] = scalar
+        assert ass[()] == cut_string
+
+        with pytest.raises(RuntimeError):
+            # However, unlike the above assignment using `str(scalar)[:6]`
+            # due to being handled by the string DType and not be casting
+            # the explicit cast fails:
+            np.array(scalar).astype(dtype)
+
+    @pytest.mark.parametrize(["val", "unit"],
+            [param(123, "s", id="[s]"), param(123, "D", id="[D]")])
+    def test_coercion_assignment_timedelta(self, val, unit):
+        scalar = np.timedelta64(val, unit)
+
+        # Unlike datetime64, timedelta allows the unsafe cast:
+        np.array(scalar, dtype="S6")
+        cast = np.array(scalar).astype("S6")
+        ass = np.ones((), dtype="S6")
+        ass[()] = scalar
+        expected = scalar.astype("S")[:6]
+        assert cast[()] == expected
+        assert ass[()] == expected
+
+class TestNested:
+    def test_nested_simple(self):
+        initial = [1.2]
+        nested = initial
+        for i in range(ncu.MAXDIMS - 1):
+            nested = [nested]
+
+        arr = np.array(nested, dtype="float64")
+        assert arr.shape == (1,) * ncu.MAXDIMS
+        with pytest.raises(ValueError):
+            np.array([nested], dtype="float64")
+
+        with pytest.raises(ValueError, match=".*would exceed the maximum"):
+            np.array([nested])  # user must ask for `object` explicitly
+
+        arr = np.array([nested], dtype=object)
+        assert arr.dtype == np.dtype("O")
+        assert arr.shape == (1,) * ncu.MAXDIMS
+        assert arr.item() is initial
+
+    def test_pathological_self_containing(self):
+        # Test that this also works for two nested sequences
+        l = []
+        l.append(l)
+        arr = np.array([l, l, l], dtype=object)
+        assert arr.shape == (3,) + (1,) * (ncu.MAXDIMS - 1)
+
+        # Also check a ragged case:
+        arr = np.array([l, [None], l], dtype=object)
+        assert arr.shape == (3, 1)
+
+    @pytest.mark.parametrize("arraylike", arraylikes())
+    def test_nested_arraylikes(self, arraylike):
+        # We try storing an array like into an array, but the array-like
+        # will have too many dimensions.  This means the shape discovery
+        # decides that the array-like must be treated as an object (a special
+        # case of ragged discovery).  The result will be an array with one
+        # dimension less than the maximum dimensions, and the array being
+        # assigned to it (which does work for object or if `float(arraylike)`
+        # works).
+        initial = arraylike(np.ones((1, 1)))
+
+        nested = initial
+        for i in range(ncu.MAXDIMS - 1):
+            nested = [nested]
+
+        with pytest.raises(ValueError, match=".*would exceed the maximum"):
+            # It will refuse to assign the array into
+            np.array(nested, dtype="float64")
+
+        # If this is object, we end up assigning a (1, 1) array into (1,)
+        # (due to running out of dimensions), this is currently supported but
+        # a special case which is not ideal.
+        arr = np.array(nested, dtype=object)
+        assert arr.shape == (1,) * ncu.MAXDIMS
+        assert arr.item() == np.array(initial).item()
+
+    @pytest.mark.parametrize("arraylike", arraylikes())
+    def test_uneven_depth_ragged(self, arraylike):
+        arr = np.arange(4).reshape((2, 2))
+        arr = arraylike(arr)
+
+        # Array is ragged in the second dimension already:
+        out = np.array([arr, [arr]], dtype=object)
+        assert out.shape == (2,)
+        assert out[0] is arr
+        assert type(out[1]) is list
+
+        # Array is ragged in the third dimension:
+        with pytest.raises(ValueError):
+            # This is a broadcast error during assignment, because
+            # the array shape would be (2, 2, 2) but `arr[0, 0] = arr` fails.
+            np.array([arr, [arr, arr]], dtype=object)
+
+    def test_empty_sequence(self):
+        arr = np.array([[], [1], [[1]]], dtype=object)
+        assert arr.shape == (3,)
+
+        # The empty sequence stops further dimension discovery, so the
+        # result shape will be (0,) which leads to an error during:
+        with pytest.raises(ValueError):
+            np.array([[], np.empty((0, 1))], dtype=object)
+
+    def test_array_of_different_depths(self):
+        # When multiple arrays (or array-likes) are included in a
+        # sequences and have different depth, we currently discover
+        # as many dimensions as they share. (see also gh-17224)
+        arr = np.zeros((3, 2))
+        mismatch_first_dim = np.zeros((1, 2))
+        mismatch_second_dim = np.zeros((3, 3))
+
+        dtype, shape = ncu._discover_array_parameters(
+            [arr, mismatch_second_dim], dtype=np.dtype("O"))
+        assert shape == (2, 3)
+
+        dtype, shape = ncu._discover_array_parameters(
+            [arr, mismatch_first_dim], dtype=np.dtype("O"))
+        assert shape == (2,)
+        # The second case is currently supported because the arrays
+        # can be stored as objects:
+        res = np.asarray([arr, mismatch_first_dim], dtype=np.dtype("O"))
+        assert res[0] is arr
+        assert res[1] is mismatch_first_dim
+
+
+class TestBadSequences:
+    # These are tests for bad objects passed into `np.array`, in general
+    # these have undefined behaviour.  In the old code they partially worked
+    # when now they will fail.  We could (and maybe should) create a copy
+    # of all sequences to be safe against bad-actors.
+
+    def test_growing_list(self):
+        # List to coerce, `mylist` will append to it during coercion
+        obj = []
+
+        class mylist(list):
+            def __len__(self):
+                obj.append([1, 2])
+                return super().__len__()
+
+        obj.append(mylist([1, 2]))
+
+        with pytest.raises(RuntimeError):
+            np.array(obj)
+
+    # Note: We do not test a shrinking list.  These do very evil things
+    #       and the only way to fix them would be to copy all sequences.
+    #       (which may be a real option in the future).
+
+    def test_mutated_list(self):
+        # List to coerce, `mylist` will mutate the first element
+        obj = []
+
+        class mylist(list):
+            def __len__(self):
+                obj[0] = [2, 3]  # replace with a different list.
+                return super().__len__()
+
+        obj.append([2, 3])
+        obj.append(mylist([1, 2]))
+        # Does not crash:
+        np.array(obj)
+
+    def test_replace_0d_array(self):
+        # List to coerce, `mylist` will mutate the first element
+        obj = []
+
+        class baditem:
+            def __len__(self):
+                obj[0][0] = 2  # replace with a different list.
+                raise ValueError("not actually a sequence!")
+
+            def __getitem__(self, _, /):
+                pass
+
+        # Runs into a corner case in the new code, the `array(2)` is cached
+        # so replacing it invalidates the cache.
+        obj.append([np.array(2), baditem()])
+        with pytest.raises(RuntimeError):
+            np.array(obj)
+
+
+class TestArrayLikes:
+    @pytest.mark.parametrize("arraylike", arraylikes())
+    def test_0d_object_special_case(self, arraylike):
+        arr = np.array(0.)
+        obj = arraylike(arr)
+        # A single array-like is always converted:
+        res = np.array(obj, dtype=object)
+        assert_array_equal(arr, res)
+
+        # But a single 0-D nested array-like never:
+        res = np.array([obj], dtype=object)
+        assert res[0] is obj
+
+    @pytest.mark.parametrize("arraylike", arraylikes())
+    @pytest.mark.parametrize("arr", [np.array(0.), np.arange(4)])
+    def test_object_assignment_special_case(self, arraylike, arr):
+        obj = arraylike(arr)
+        empty = np.arange(1, dtype=object)
+        empty[:] = [obj]
+        assert empty[0] is obj
+
+    def test_0d_generic_special_case(self):
+        class ArraySubclass(np.ndarray):
+            def __float__(self):
+                raise TypeError("e.g. quantities raise on this")
+
+        arr = np.array(0.)
+        obj = arr.view(ArraySubclass)
+        res = np.array(obj)
+        # The subclass is simply cast:
+        assert_array_equal(arr, res)
+
+        # If the 0-D array-like is included, __float__ is currently
+        # guaranteed to be used.  We may want to change that, quantities
+        # and masked arrays half make use of this.
+        with pytest.raises(TypeError):
+            np.array([obj])
+
+        # The same holds for memoryview:
+        obj = memoryview(arr)
+        res = np.array(obj)
+        assert_array_equal(arr, res)
+        with pytest.raises(ValueError):
+            # The error type does not matter much here.
+            np.array([obj])
+
+    def test_arraylike_classes(self):
+        # The classes of array-likes should generally be acceptable to be
+        # stored inside a numpy (object) array.  This tests all of the
+        # special attributes (since all are checked during coercion).
+        arr = np.array(np.int64)
+        assert arr[()] is np.int64
+        arr = np.array([np.int64])
+        assert arr[0] is np.int64
+
+        # This also works for properties/unbound methods:
+        class ArrayLike:
+            @property
+            def __array_interface__(self):
+                pass
+
+            @property
+            def __array_struct__(self):
+                pass
+
+            def __array__(self, dtype=None, copy=None):
+                pass
+
+        arr = np.array(ArrayLike)
+        assert arr[()] is ArrayLike
+        arr = np.array([ArrayLike])
+        assert arr[0] is ArrayLike
+
+    @pytest.mark.skipif(not IS_64BIT, reason="Needs 64bit platform")
+    @pytest.mark.thread_unsafe(reason="large slow test in parallel")
+    def test_too_large_array_error_paths(self):
+        """Test the error paths, including for memory leaks"""
+        arr = np.array(0, dtype="uint8")
+        # Guarantees that a contiguous copy won't work:
+        arr = np.broadcast_to(arr, 2**62)
+
+        for i in range(5):
+            # repeat, to ensure caching cannot have an effect:
+            with pytest.raises(MemoryError):
+                np.array(arr)
+            with pytest.raises(MemoryError):
+                np.array([arr])
+
+    @pytest.mark.parametrize("attribute",
+        ["__array_interface__", "__array__", "__array_struct__"])
+    @pytest.mark.parametrize("error", [RecursionError, MemoryError])
+    def test_bad_array_like_attributes(self, attribute, error):
+        # RecursionError and MemoryError are considered fatal. All errors
+        # (except AttributeError) should probably be raised in the future,
+        # but shapely made use of it, so it will require a deprecation.
+
+        class BadInterface:
+            def __getattr__(self, attr):
+                if attr == attribute:
+                    raise error
+                super().__getattr__(attr)
+
+        with pytest.raises(error):
+            np.array(BadInterface())
+
+    @pytest.mark.parametrize("error", [RecursionError, MemoryError])
+    def test_bad_array_like_bad_length(self, error):
+        # RecursionError and MemoryError are considered "critical" in
+        # sequences. We could expand this more generally though. (NumPy 1.20)
+        class BadSequence:
+            def __len__(self):
+                raise error
+
+            def __getitem__(self, _, /):
+                # must have getitem to be a Sequence
+                return 1
+
+        with pytest.raises(error):
+            np.array(BadSequence())
+
+    def test_array_interface_descr_optional(self):
+        # The descr should be optional regression test for gh-27249
+        arr = np.ones(10, dtype="V10")
+        iface = arr.__array_interface__
+        iface.pop("descr")
+
+        class MyClass:
+            __array_interface__ = iface
+
+        assert_array_equal(np.asarray(MyClass), arr)
+
+
+class TestAsArray:
+    """Test expected behaviors of ``asarray``."""
+
+    def test_dtype_identity(self):
+        """Confirm the intended behavior for *dtype* kwarg.
+
+        The result of ``asarray()`` should have the dtype provided through the
+        keyword argument, when used. This forces unique array handles to be
+        produced for unique np.dtype objects, but (for equivalent dtypes), the
+        underlying data (the base object) is shared with the original array
+        object.
+
+        Ref https://github.com/numpy/numpy/issues/1468
+        """
+        int_array = np.array([1, 2, 3], dtype='i')
+        assert np.asarray(int_array) is int_array
+
+        # The character code resolves to the singleton dtype object provided
+        # by the numpy package.
+        assert np.asarray(int_array, dtype='i') is int_array
+
+        # Derive a dtype from n.dtype('i'), but add a metadata object to force
+        # the dtype to be distinct.
+        unequal_type = np.dtype('i', metadata={'spam': True})
+        annotated_int_array = np.asarray(int_array, dtype=unequal_type)
+        assert annotated_int_array is not int_array
+        assert annotated_int_array.base is int_array
+        # Create an equivalent descriptor with a new and distinct dtype
+        # instance.
+        equivalent_requirement = np.dtype('i', metadata={'spam': True})
+        annotated_int_array_alt = np.asarray(annotated_int_array,
+                                             dtype=equivalent_requirement)
+        assert unequal_type == equivalent_requirement
+        assert unequal_type is not equivalent_requirement
+        assert annotated_int_array_alt is not annotated_int_array
+        assert annotated_int_array_alt.dtype is equivalent_requirement
+
+        # Check the same logic for a pair of C types whose equivalence may vary
+        # between computing environments.
+        # Find an equivalent pair.
+        integer_type_codes = ('i', 'l', 'q')
+        integer_dtypes = [np.dtype(code) for code in integer_type_codes]
+        typeA = None
+        typeB = None
+        for typeA, typeB in permutations(integer_dtypes, r=2):
+            if typeA == typeB:
+                assert typeA is not typeB
+                break
+        assert isinstance(typeA, np.dtype) and isinstance(typeB, np.dtype)
+
+        # These ``asarray()`` calls may produce a new view or a copy,
+        # but never the same object.
+        long_int_array = np.asarray(int_array, dtype='l')
+        long_long_int_array = np.asarray(int_array, dtype='q')
+        assert long_int_array is not int_array
+        assert long_long_int_array is not int_array
+        assert np.asarray(long_int_array, dtype='q') is not long_int_array
+        array_a = np.asarray(int_array, dtype=typeA)
+        assert typeA == typeB
+        assert typeA is not typeB
+        assert array_a.dtype is typeA
+        assert array_a is not np.asarray(array_a, dtype=typeB)
+        assert np.asarray(array_a, dtype=typeB).dtype is typeB
+        assert array_a is np.asarray(array_a, dtype=typeB).base
+
+
+class TestSpecialAttributeLookupFailure:
+    # An exception was raised while fetching the attribute
+
+    class WeirdArrayLike:
+        @property
+        def __array__(self, dtype=None, copy=None):  # noqa: PLR0206
+            raise RuntimeError("oops!")
+
+    class WeirdArrayInterface:
+        @property
+        def __array_interface__(self):
+            raise RuntimeError("oops!")
+
+    def test_deprecated(self):
+        with pytest.raises(RuntimeError):
+            np.array(self.WeirdArrayLike())
+        with pytest.raises(RuntimeError):
+            np.array(self.WeirdArrayInterface())
+
+
+def test_subarray_from_array_construction():
+    # Arrays are more complex, since they "broadcast" on success:
+    arr = np.array([1, 2])
+
+    res = arr.astype("2i")
+    assert_array_equal(res, [[1, 1], [2, 2]])
+
+    res = np.array(arr, dtype="(2,)i")
+
+    assert_array_equal(res, [[1, 1], [2, 2]])
+
+    res = np.array([[(1,), (2,)], arr], dtype="2i")
+    assert_array_equal(res, [[[1, 1], [2, 2]], [[1, 1], [2, 2]]])
+
+    # Also try a multi-dimensional example:
+    arr = np.arange(5 * 2).reshape(5, 2)
+    expected = np.broadcast_to(arr[:, :, np.newaxis, np.newaxis], (5, 2, 2, 2))
+
+    res = arr.astype("(2,2)f")
+    assert_array_equal(res, expected)
+
+    res = np.array(arr, dtype="(2,2)f")
+    assert_array_equal(res, expected)
+
+
+def test_empty_string():
+    # Empty strings are unfortunately often converted to S1 and we need to
+    # make sure we are filling the S1 and not the (possibly) detected S0
+    # result.  This should likely just return S0 and if not maybe the decision
+    # to return S1 should be moved.
+    res = np.array([""] * 10, dtype="S")
+    assert_array_equal(res, np.array("\0", "S1"))
+    assert res.dtype == "S1"
+
+    arr = np.array([""] * 10, dtype=object)
+
+    res = arr.astype("S")
+    assert_array_equal(res, b"")
+    assert res.dtype == "S1"
+
+    res = np.array(arr, dtype="S")
+    assert_array_equal(res, b"")
+    # TODO: This is arguably weird/wrong, but seems old:
+    assert res.dtype == f"S{np.dtype('O').itemsize}"
+
+    res = np.array([[""] * 10, arr], dtype="S")
+    assert_array_equal(res, b"")
+    assert res.shape == (2, 10)
+    assert res.dtype == "S1"
+
+
+@pytest.mark.parametrize("dtype", ["S", "U", object])
+@pytest.mark.parametrize("res_dt,hug_val",
+    [("float16", "1e30"), ("float32", "1e200")])
+def test_string_to_float_coercion_errors(dtype, res_dt, hug_val):
+    # This test primarly tests setitem
+    val = np.array(["3M"], dtype=dtype)[0]  # use the scalar
+
+    with pytest.raises(ValueError):
+        np.array(val, dtype=res_dt)
+
+    val = np.array([hug_val], dtype=dtype)[0]  # use the scalar
+
+    with np.errstate(all="warn"):
+        with pytest.warns(RuntimeWarning):
+            np.array(val, dtype=res_dt)
+
+    with np.errstate(all="raise"):
+        with pytest.raises(FloatingPointError):
+            np.array(val, dtype=res_dt)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_interface.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_interface.py
new file mode 100644
index 0000000000000000000000000000000000000000..c8cf748adc7c8e95cd3e69a6bd5f2351c1d96a11
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_array_interface.py
@@ -0,0 +1,222 @@
+import sys
+import sysconfig
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_EDITABLE, IS_WASM, extbuild
+
+
+@pytest.fixture
+def get_module(tmp_path):
+    """ Some codes to generate data and manage temporary buffers use when
+    sharing with numpy via the array interface protocol.
+    """
+    if sys.platform.startswith('cygwin'):
+        pytest.skip('link fails on cygwin')
+    if IS_WASM:
+        pytest.skip("Can't build module inside Wasm")
+    if IS_EDITABLE:
+        pytest.skip("Can't build module for editable install")
+
+    prologue = '''
+        #include <Python.h>
+        #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
+        #include <numpy/arrayobject.h>
+        #include <stdio.h>
+        #include <math.h>
+
+        NPY_NO_EXPORT
+        void delete_array_struct(PyObject *cap) {
+
+            /* get the array interface structure */
+            PyArrayInterface *inter = (PyArrayInterface*)
+                PyCapsule_GetPointer(cap, NULL);
+
+            /* get the buffer by which data was shared */
+            double *ptr = (double*)PyCapsule_GetContext(cap);
+
+            /* for the purposes of the regression test set the elements
+               to nan */
+            for (npy_intp i = 0; i < inter->shape[0]; ++i)
+                ptr[i] = nan("");
+
+            /* free the shared buffer */
+            free(ptr);
+
+            /* free the array interface structure */
+            free(inter->shape);
+            free(inter);
+
+            fprintf(stderr, "delete_array_struct\\ncap = %ld inter = %ld"
+                " ptr = %ld\\n", (long)cap, (long)inter, (long)ptr);
+        }
+        '''
+
+    functions = [
+        ("new_array_struct", "METH_VARARGS", """
+
+            long long n_elem = 0;
+            double value = 0.0;
+
+            if (!PyArg_ParseTuple(args, "Ld", &n_elem, &value)) {
+                Py_RETURN_NONE;
+            }
+
+            /* allocate and initialize the data to share with numpy */
+            long long n_bytes = n_elem*sizeof(double);
+            double *data = (double*)malloc(n_bytes);
+
+            if (!data) {
+                PyErr_Format(PyExc_MemoryError,
+                    "Failed to malloc %lld bytes", n_bytes);
+
+                Py_RETURN_NONE;
+            }
+
+            for (long long i = 0; i < n_elem; ++i) {
+                data[i] = value;
+            }
+
+            /* calculate the shape and stride */
+            int nd = 1;
+
+            npy_intp *ss = (npy_intp*)malloc(2*nd*sizeof(npy_intp));
+            npy_intp *shape = ss;
+            npy_intp *stride = ss + nd;
+
+            shape[0] = n_elem;
+            stride[0] = sizeof(double);
+
+            /* construct the array interface */
+            PyArrayInterface *inter = (PyArrayInterface*)
+                malloc(sizeof(PyArrayInterface));
+
+            memset(inter, 0, sizeof(PyArrayInterface));
+
+            inter->two = 2;
+            inter->nd = nd;
+            inter->typekind = 'f';
+            inter->itemsize = sizeof(double);
+            inter->shape = shape;
+            inter->strides = stride;
+            inter->data = data;
+            inter->flags = NPY_ARRAY_WRITEABLE | NPY_ARRAY_NOTSWAPPED |
+                           NPY_ARRAY_ALIGNED | NPY_ARRAY_C_CONTIGUOUS;
+
+            /* package into a capsule */
+            PyObject *cap = PyCapsule_New(inter, NULL, delete_array_struct);
+
+            /* save the pointer to the data */
+            PyCapsule_SetContext(cap, data);
+
+            fprintf(stderr, "new_array_struct\\ncap = %ld inter = %ld"
+                " ptr = %ld\\n", (long)cap, (long)inter, (long)data);
+
+            return cap;
+        """)
+        ]
+
+    more_init = "import_array();"
+
+    try:
+        import array_interface_testing
+        return array_interface_testing
+    except ImportError:
+        pass
+
+    # if it does not exist, build and load it
+    if sysconfig.get_platform() == "win-arm64":
+        pytest.skip("Meson unable to find MSVC linker on win-arm64")
+    return extbuild.build_and_import_extension('array_interface_testing',
+                                               functions,
+                                               prologue=prologue,
+                                               include_dirs=[np.get_include()],
+                                               build_dir=tmp_path,
+                                               more_init=more_init)
+
+
+@pytest.mark.slow
+def test_cstruct(get_module):
+
+    class data_source:
+        """
+        This class is for testing the timing of the PyCapsule destructor
+        invoked when numpy release its reference to the shared data as part of
+        the numpy array interface protocol. If the PyCapsule destructor is
+        called early the shared data is freed and invalid memory accesses will
+        occur.
+        """
+
+        def __init__(self, size, value):
+            self.size = size
+            self.value = value
+
+        @property
+        def __array_struct__(self):
+            return get_module.new_array_struct(self.size, self.value)
+
+    # write to the same stream as the C code
+    stderr = sys.__stderr__
+
+    # used to validate the shared data.
+    expected_value = -3.1415
+    multiplier = -10000.0
+
+    # create some data to share with numpy via the array interface
+    # assign the data an expected value.
+    stderr.write(' ---- create an object to share data ---- \n')
+    buf = data_source(256, expected_value)
+    stderr.write(' ---- OK!\n\n')
+
+    # share the data
+    stderr.write(' ---- share data via the array interface protocol ---- \n')
+    arr = np.array(buf, copy=False)
+    stderr.write(f'arr.__array_interface___ = {str(arr.__array_interface__)}\n')
+    stderr.write(f'arr.base = {str(arr.base)}\n')
+    stderr.write(' ---- OK!\n\n')
+
+    # release the source of the shared data. this will not release the data
+    # that was shared with numpy, that is done in the PyCapsule destructor.
+    stderr.write(' ---- destroy the object that shared data ---- \n')
+    buf = None
+    stderr.write(' ---- OK!\n\n')
+
+    # check that we got the expected data. If the PyCapsule destructor we
+    # defined was prematurely called then this test will fail because our
+    # destructor sets the elements of the array to NaN before free'ing the
+    # buffer. Reading the values here may also cause a SEGV
+    assert np.allclose(arr, expected_value)
+
+    # read the data. If the PyCapsule destructor we defined was prematurely
+    # called then reading the values here may cause a SEGV and will be reported
+    # as invalid reads by valgrind
+    stderr.write(' ---- read shared data ---- \n')
+    stderr.write(f'arr = {str(arr)}\n')
+    stderr.write(' ---- OK!\n\n')
+
+    # write to the shared buffer. If the shared data was prematurely deleted
+    # this will may cause a SEGV and valgrind will report invalid writes
+    stderr.write(' ---- modify shared data ---- \n')
+    arr *= multiplier
+    expected_value *= multiplier
+    stderr.write(f'arr.__array_interface___ = {str(arr.__array_interface__)}\n')
+    stderr.write(f'arr.base = {str(arr.base)}\n')
+    stderr.write(' ---- OK!\n\n')
+
+    # read the data. If the shared data was prematurely deleted this
+    # will may cause a SEGV and valgrind will report invalid reads
+    stderr.write(' ---- read modified shared data ---- \n')
+    stderr.write(f'arr = {str(arr)}\n')
+    stderr.write(' ---- OK!\n\n')
+
+    # check that we got the expected data. If the PyCapsule destructor we
+    # defined was prematurely called then this test will fail because our
+    # destructor sets the elements of the array to NaN before free'ing the
+    # buffer. Reading the values here may also cause a SEGV
+    assert np.allclose(arr, expected_value)
+
+    # free the shared data, the PyCapsule destructor should run here
+    stderr.write(' ---- free shared data ---- \n')
+    arr = None
+    stderr.write(' ---- OK!\n\n')
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arraymethod.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arraymethod.py
new file mode 100644
index 0000000000000000000000000000000000000000..5b78396caa50b65e510c8ff54ec98f8fe7158ad6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arraymethod.py
@@ -0,0 +1,84 @@
+"""
+This file tests the generic aspects of ArrayMethod.  At the time of writing
+this is private API, but when added, public API may be added here.
+"""
+
+import types
+from typing import Any
+
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_umath import _get_castingimpl as get_castingimpl
+
+
+class TestResolveDescriptors:
+    # Test mainly error paths of the resolve_descriptors function,
+    # note that the `casting_unittests` tests exercise this non-error paths.
+
+    # Casting implementations are the main/only current user:
+    method = get_castingimpl(type(np.dtype("d")), type(np.dtype("f")))
+
+    @pytest.mark.parametrize("args", [
+        (True,),  # Not a tuple.
+        ((None,)),  # Too few elements
+        ((None, None, None),),  # Too many
+        ((None, None),),  # Input dtype is None, which is invalid.
+        ((np.dtype("d"), True),),  # Output dtype is not a dtype
+        ((np.dtype("f"), None),),  # Input dtype does not match method
+    ])
+    def test_invalid_arguments(self, args):
+        with pytest.raises(TypeError):
+            self.method._resolve_descriptors(*args)
+
+
+class TestSimpleStridedCall:
+    # Test mainly error paths of the resolve_descriptors function,
+    # note that the `casting_unittests` tests exercise this non-error paths.
+
+    # Casting implementations are the main/only current user:
+    method = get_castingimpl(type(np.dtype("d")), type(np.dtype("f")))
+
+    @pytest.mark.parametrize(["args", "error"], [
+        ((True,), TypeError),  # Not a tuple
+        (((None,),), TypeError),  # Too few elements
+        ((None, None), TypeError),  # Inputs are not arrays.
+        (((None, None, None),), TypeError),  # Too many
+        (((np.arange(3), np.arange(3)),), TypeError),  # Incorrect dtypes
+        (((np.ones(3, dtype=">d"), np.ones(3, dtype="<f")),),
+         TypeError),  # Does not support byte-swapping
+        (((np.ones((2, 2), dtype="d"), np.ones((2, 2), dtype="f")),),
+         ValueError),  # not 1-D
+        (((np.ones(3, dtype="d"), np.ones(4, dtype="f")),),
+          ValueError),  # different length
+        (((np.frombuffer(b"\0x00" * 3 * 2, dtype="d"),
+           np.frombuffer(b"\0x00" * 3, dtype="f")),),
+         ValueError),  # output not writeable
+    ])
+    def test_invalid_arguments(self, args, error):
+        # This is private API, which may be modified freely
+        with pytest.raises(error):
+            self.method._simple_strided_call(*args)
+
+
+@pytest.mark.parametrize(
+    "cls", [
+        np.ndarray, np.recarray, np.char.chararray, np.matrix, np.memmap
+    ]
+)
+class TestClassGetItem:
+    def test_class_getitem(self, cls: type[np.ndarray]) -> None:
+        """Test `ndarray.__class_getitem__`."""
+        alias = cls[Any, Any]
+        assert isinstance(alias, types.GenericAlias)
+        assert alias.__origin__ is cls
+
+    @pytest.mark.parametrize("arg_len", range(4))
+    def test_subscript_tup(self, cls: type[np.ndarray], arg_len: int) -> None:
+        arg_tup = (Any,) * arg_len
+        if arg_len in (1, 2):
+            assert cls[arg_tup]
+        else:
+            match = f"Too {'few' if arg_len == 0 else 'many'} arguments"
+            with pytest.raises(TypeError, match=match):
+                cls[arg_tup]
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arrayobject.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arrayobject.py
new file mode 100644
index 0000000000000000000000000000000000000000..ece842bb47d75adb320642d755d19b65509008fe
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arrayobject.py
@@ -0,0 +1,95 @@
+import sys
+
+import pytest
+
+import numpy as np
+from numpy.testing import HAS_REFCOUNT, assert_array_equal
+
+
+def test_matrix_transpose_raises_error_for_1d():
+    msg = "matrix transpose with ndim < 2 is undefined"
+    arr = np.arange(48)
+    with pytest.raises(ValueError, match=msg):
+        arr.mT
+
+
+def test_matrix_transpose_equals_transpose_2d():
+    arr = np.arange(48).reshape((6, 8))
+    assert_array_equal(arr.T, arr.mT)
+
+
+ARRAY_SHAPES_TO_TEST = (
+    (5, 2),
+    (5, 2, 3),
+    (5, 2, 3, 4),
+)
+
+
+@pytest.mark.parametrize("shape", ARRAY_SHAPES_TO_TEST)
+def test_matrix_transpose_equals_swapaxes(shape):
+    num_of_axes = len(shape)
+    vec = np.arange(shape[-1])
+    arr = np.broadcast_to(vec, shape)
+    tgt = np.swapaxes(arr, num_of_axes - 2, num_of_axes - 1)
+    mT = arr.mT
+    assert_array_equal(tgt, mT)
+
+
+class MyArr(np.ndarray):
+    def __array_wrap__(self, arr, context=None, return_scalar=None):
+        return super().__array_wrap__(arr, context, return_scalar)
+
+
+class MyArrNoWrap(np.ndarray):
+    pass
+
+
+@pytest.mark.parametrize("subclass_self", [np.ndarray, MyArr, MyArrNoWrap])
+@pytest.mark.parametrize("subclass_arr", [np.ndarray, MyArr, MyArrNoWrap])
+def test_array_wrap(subclass_self, subclass_arr):
+    # NumPy should allow `__array_wrap__` to be called on arrays, it's logic
+    # is designed in a way that:
+    #
+    # * Subclasses never return scalars by default (to preserve their
+    #   information).  They can choose to if they wish.
+    # * NumPy returns scalars, if `return_scalar` is passed as True to allow
+    #   manual calls to `arr.__array_wrap__` to do the right thing.
+    # * The type of the input should be ignored (it should be a base-class
+    #   array, but I am not sure this is guaranteed).
+
+    arr = np.arange(3).view(subclass_self)
+
+    arr0d = np.array(3, dtype=np.int8).view(subclass_arr)
+    # With third argument True, ndarray allows "decay" to scalar.
+    # (I don't think NumPy would pass `None`, but it seems clear to support)
+    if subclass_self is np.ndarray:
+        assert type(arr.__array_wrap__(arr0d, None, True)) is np.int8
+    else:
+        assert type(arr.__array_wrap__(arr0d, None, True)) is type(arr)
+
+    # Otherwise, result should be viewed as the subclass
+    assert type(arr.__array_wrap__(arr0d)) is type(arr)
+    assert type(arr.__array_wrap__(arr0d, None, None)) is type(arr)
+    assert type(arr.__array_wrap__(arr0d, None, False)) is type(arr)
+
+    # Non 0-D array can't be converted to scalar, so we ignore that
+    arr1d = np.array([3], dtype=np.int8).view(subclass_arr)
+    assert type(arr.__array_wrap__(arr1d, None, True)) is type(arr)
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_cleanup_with_refs_non_contig():
+    # Regression test, leaked the dtype (but also good for rest)
+    dtype = np.dtype("O,i")
+    obj = object()
+    expected_ref_dtype = sys.getrefcount(dtype)
+    expected_ref_obj = sys.getrefcount(obj)
+    proto = np.full((3, 4, 5, 6, 7), np.array((obj, 2), dtype=dtype))
+    # Give array a non-trivial order to exercise more cleanup paths.
+    arr = proto.transpose((2, 0, 3, 1, 4)).copy("K")
+    del proto, arr
+
+    actual_ref_dtype = sys.getrefcount(dtype)
+    actual_ref_obj = sys.getrefcount(obj)
+    assert actual_ref_dtype == expected_ref_dtype
+    assert actual_ref_obj == actual_ref_dtype
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arrayprint.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arrayprint.py
new file mode 100644
index 0000000000000000000000000000000000000000..adde407a7b1c4052898e7e77d3ea09ac29f41a9b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_arrayprint.py
@@ -0,0 +1,1324 @@
+import gc
+import sys
+import textwrap
+
+import pytest
+from hypothesis import given
+from hypothesis.extra import numpy as hynp
+
+import numpy as np
+from numpy._core.arrayprint import _typelessdata
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_WASM,
+    assert_,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+from numpy.testing._private.utils import run_threaded
+
+
+class TestArrayRepr:
+    def test_nan_inf(self):
+        x = np.array([np.nan, np.inf])
+        assert_equal(repr(x), 'array([nan, inf])')
+
+    def test_subclass(self):
+        class sub(np.ndarray):
+            pass
+
+        # one dimensional
+        x1d = np.array([1, 2]).view(sub)
+        assert_equal(repr(x1d), 'sub([1, 2])')
+
+        # two dimensional
+        x2d = np.array([[1, 2], [3, 4]]).view(sub)
+        assert_equal(repr(x2d),
+            'sub([[1, 2],\n'
+            '     [3, 4]])')
+
+        # two dimensional with flexible dtype
+        xstruct = np.ones((2, 2), dtype=[('a', '<i4')]).view(sub)
+        assert_equal(repr(xstruct),
+            "sub([[(1,), (1,)],\n"
+            "     [(1,), (1,)]], dtype=[('a', '<i4')])"
+        )
+
+    @pytest.mark.xfail(reason="See gh-10544")
+    def test_object_subclass(self):
+        class sub(np.ndarray):
+            def __new__(cls, inp):
+                obj = np.asarray(inp).view(cls)
+                return obj
+
+            def __getitem__(self, ind):
+                ret = super().__getitem__(ind)
+                return sub(ret)
+
+        # test that object + subclass is OK:
+        x = sub([None, None])
+        assert_equal(repr(x), 'sub([None, None], dtype=object)')
+        assert_equal(str(x), '[None None]')
+
+        x = sub([None, sub([None, None])])
+        assert_equal(repr(x),
+            'sub([None, sub([None, None], dtype=object)], dtype=object)')
+        assert_equal(str(x), '[None sub([None, None], dtype=object)]')
+
+    def test_0d_object_subclass(self):
+        # make sure that subclasses which return 0ds instead
+        # of scalars don't cause infinite recursion in str
+        class sub(np.ndarray):
+            def __new__(cls, inp):
+                obj = np.asarray(inp).view(cls)
+                return obj
+
+            def __getitem__(self, ind):
+                ret = super().__getitem__(ind)
+                return sub(ret)
+
+        x = sub(1)
+        assert_equal(repr(x), 'sub(1)')
+        assert_equal(str(x), '1')
+
+        x = sub([1, 1])
+        assert_equal(repr(x), 'sub([1, 1])')
+        assert_equal(str(x), '[1 1]')
+
+        # check it works properly with object arrays too
+        x = sub(None)
+        assert_equal(repr(x), 'sub(None, dtype=object)')
+        assert_equal(str(x), 'None')
+
+        # plus recursive object arrays (even depth > 1)
+        y = sub(None)
+        x[()] = y
+        y[()] = x
+        assert_equal(repr(x),
+            'sub(sub(sub(..., dtype=object), dtype=object), dtype=object)')
+        assert_equal(str(x), '...')
+        x[()] = 0  # resolve circular references for garbage collector
+
+        # nested 0d-subclass-object
+        x = sub(None)
+        x[()] = sub(None)
+        assert_equal(repr(x), 'sub(sub(None, dtype=object), dtype=object)')
+        assert_equal(str(x), 'None')
+
+        # gh-10663
+        class DuckCounter(np.ndarray):
+            def __getitem__(self, item):
+                result = super().__getitem__(item)
+                if not isinstance(result, DuckCounter):
+                    result = result[...].view(DuckCounter)
+                return result
+
+            def to_string(self):
+                return {0: 'zero', 1: 'one', 2: 'two'}.get(self.item(), 'many')
+
+            def __str__(self):
+                if self.shape == ():
+                    return self.to_string()
+                else:
+                    fmt = {'all': lambda x: x.to_string()}
+                    return np.array2string(self, formatter=fmt)
+
+        dc = np.arange(5).view(DuckCounter)
+        assert_equal(str(dc), "[zero one two many many]")
+        assert_equal(str(dc[0]), "zero")
+
+    def test_self_containing(self):
+        arr0d = np.array(None)
+        arr0d[()] = arr0d
+        assert_equal(repr(arr0d),
+            'array(array(..., dtype=object), dtype=object)')
+        arr0d[()] = 0  # resolve recursion for garbage collector
+
+        arr1d = np.array([None, None])
+        arr1d[1] = arr1d
+        assert_equal(repr(arr1d),
+            'array([None, array(..., dtype=object)], dtype=object)')
+        arr1d[1] = 0  # resolve recursion for garbage collector
+
+        first = np.array(None)
+        second = np.array(None)
+        first[()] = second
+        second[()] = first
+        assert_equal(repr(first),
+            'array(array(array(..., dtype=object), dtype=object), dtype=object)')
+        first[()] = 0  # resolve circular references for garbage collector
+
+    def test_containing_list(self):
+        # printing square brackets directly would be ambiguous
+        arr1d = np.array([None, None])
+        arr1d[0] = [1, 2]
+        arr1d[1] = [3]
+        assert_equal(repr(arr1d),
+            'array([list([1, 2]), list([3])], dtype=object)')
+
+    def test_void_scalar_recursion(self):
+        # gh-9345
+        repr(np.void(b'test'))  # RecursionError ?
+
+    def test_fieldless_structured(self):
+        # gh-10366
+        no_fields = np.dtype([])
+        arr_no_fields = np.empty(4, dtype=no_fields)
+        assert_equal(repr(arr_no_fields), 'array([(), (), (), ()], dtype=[])')
+
+
+class TestComplexArray:
+    def test_str(self):
+        rvals = [0, 1, -1, np.inf, -np.inf, np.nan]
+        cvals = [complex(rp, ip) for rp in rvals for ip in rvals]
+        dtypes = [np.complex64, np.cdouble, np.clongdouble]
+        actual = [str(np.array([c], dt)) for c in cvals for dt in dtypes]
+        wanted = [
+            '[0.+0.j]',    '[0.+0.j]',    '[0.+0.j]',
+            '[0.+1.j]',    '[0.+1.j]',    '[0.+1.j]',
+            '[0.-1.j]',    '[0.-1.j]',    '[0.-1.j]',
+            '[0.+infj]',   '[0.+infj]',   '[0.+infj]',
+            '[0.-infj]',   '[0.-infj]',   '[0.-infj]',
+            '[0.+nanj]',   '[0.+nanj]',   '[0.+nanj]',
+            '[1.+0.j]',    '[1.+0.j]',    '[1.+0.j]',
+            '[1.+1.j]',    '[1.+1.j]',    '[1.+1.j]',
+            '[1.-1.j]',    '[1.-1.j]',    '[1.-1.j]',
+            '[1.+infj]',   '[1.+infj]',   '[1.+infj]',
+            '[1.-infj]',   '[1.-infj]',   '[1.-infj]',
+            '[1.+nanj]',   '[1.+nanj]',   '[1.+nanj]',
+            '[-1.+0.j]',   '[-1.+0.j]',   '[-1.+0.j]',
+            '[-1.+1.j]',   '[-1.+1.j]',   '[-1.+1.j]',
+            '[-1.-1.j]',   '[-1.-1.j]',   '[-1.-1.j]',
+            '[-1.+infj]',  '[-1.+infj]',  '[-1.+infj]',
+            '[-1.-infj]',  '[-1.-infj]',  '[-1.-infj]',
+            '[-1.+nanj]',  '[-1.+nanj]',  '[-1.+nanj]',
+            '[inf+0.j]',   '[inf+0.j]',   '[inf+0.j]',
+            '[inf+1.j]',   '[inf+1.j]',   '[inf+1.j]',
+            '[inf-1.j]',   '[inf-1.j]',   '[inf-1.j]',
+            '[inf+infj]',  '[inf+infj]',  '[inf+infj]',
+            '[inf-infj]',  '[inf-infj]',  '[inf-infj]',
+            '[inf+nanj]',  '[inf+nanj]',  '[inf+nanj]',
+            '[-inf+0.j]',  '[-inf+0.j]',  '[-inf+0.j]',
+            '[-inf+1.j]',  '[-inf+1.j]',  '[-inf+1.j]',
+            '[-inf-1.j]',  '[-inf-1.j]',  '[-inf-1.j]',
+            '[-inf+infj]', '[-inf+infj]', '[-inf+infj]',
+            '[-inf-infj]', '[-inf-infj]', '[-inf-infj]',
+            '[-inf+nanj]', '[-inf+nanj]', '[-inf+nanj]',
+            '[nan+0.j]',   '[nan+0.j]',   '[nan+0.j]',
+            '[nan+1.j]',   '[nan+1.j]',   '[nan+1.j]',
+            '[nan-1.j]',   '[nan-1.j]',   '[nan-1.j]',
+            '[nan+infj]',  '[nan+infj]',  '[nan+infj]',
+            '[nan-infj]',  '[nan-infj]',  '[nan-infj]',
+            '[nan+nanj]',  '[nan+nanj]',  '[nan+nanj]']
+
+        for res, val in zip(actual, wanted):
+            assert_equal(res, val)
+
+class TestArray2String:
+    def test_basic(self):
+        """Basic test of array2string."""
+        a = np.arange(3)
+        assert_(np.array2string(a) == '[0 1 2]')
+        assert_(np.array2string(a, max_line_width=4, legacy='1.13') == '[0 1\n 2]')
+        assert_(np.array2string(a, max_line_width=4) == '[0\n 1\n 2]')
+
+    def test_unexpected_kwarg(self):
+        # ensure than an appropriate TypeError
+        # is raised when array2string receives
+        # an unexpected kwarg
+
+        with assert_raises_regex(TypeError, 'nonsense'):
+            np.array2string(np.array([1, 2, 3]),
+                            nonsense=None)
+
+    def test_format_function(self):
+        """Test custom format function for each element in array."""
+        def _format_function(x):
+            if np.abs(x) < 1:
+                return '.'
+            elif np.abs(x) < 2:
+                return 'o'
+            else:
+                return 'O'
+
+        x = np.arange(3)
+        x_hex = "[0x0 0x1 0x2]"
+        x_oct = "[0o0 0o1 0o2]"
+        assert_(np.array2string(x, formatter={'all': _format_function}) ==
+                "[. o O]")
+        assert_(np.array2string(x, formatter={'int_kind': _format_function}) ==
+                "[. o O]")
+        assert_(np.array2string(x, formatter={'all': lambda x: f"{x:.4f}"}) ==
+                "[0.0000 1.0000 2.0000]")
+        assert_equal(np.array2string(x, formatter={'int': hex}),
+                x_hex)
+        assert_equal(np.array2string(x, formatter={'int': oct}),
+                x_oct)
+
+        x = np.arange(3.)
+        assert_(np.array2string(x, formatter={'float_kind': lambda x: f"{x:.2f}"}) ==
+                "[0.00 1.00 2.00]")
+        assert_(np.array2string(x, formatter={'float': lambda x: f"{x:.2f}"}) ==
+                "[0.00 1.00 2.00]")
+
+        s = np.array(['abc', 'def'])
+        assert_(np.array2string(s, formatter={'numpystr': lambda s: s * 2}) ==
+                '[abcabc defdef]')
+
+    def test_structure_format_mixed(self):
+        dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))])
+        x = np.array([('Sarah', (8.0, 7.0)), ('John', (6.0, 7.0))], dtype=dt)
+        assert_equal(np.array2string(x),
+                "[('Sarah', [8., 7.]) ('John', [6., 7.])]")
+
+        np.set_printoptions(legacy='1.13')
+        try:
+            # for issue #5692
+            A = np.zeros(shape=10, dtype=[("A", "M8[s]")])
+            A[5:].fill(np.datetime64('NaT'))
+            assert_equal(
+                np.array2string(A),
+                textwrap.dedent("""\
+                [('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',)
+                 ('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) ('NaT',) ('NaT',)
+                 ('NaT',) ('NaT',) ('NaT',)]""")
+            )
+        finally:
+            np.set_printoptions(legacy=False)
+
+        # same again, but with non-legacy behavior
+        assert_equal(
+            np.array2string(A),
+            textwrap.dedent("""\
+            [('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',)
+             ('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',)
+             ('1970-01-01T00:00:00',) (                'NaT',)
+             (                'NaT',) (                'NaT',)
+             (                'NaT',) (                'NaT',)]""")
+        )
+
+        # and again, with timedeltas
+        A = np.full(10, 123456, dtype=[("A", "m8[s]")])
+        A[5:].fill(np.datetime64('NaT'))
+        assert_equal(
+            np.array2string(A),
+            textwrap.dedent("""\
+            [(123456,) (123456,) (123456,) (123456,) (123456,) ( 'NaT',) ( 'NaT',)
+             ( 'NaT',) ( 'NaT',) ( 'NaT',)]""")
+        )
+
+    def test_structure_format_int(self):
+        # See #8160
+        struct_int = np.array([([1, -1],), ([123, 1],)],
+                dtype=[('B', 'i4', 2)])
+        assert_equal(np.array2string(struct_int),
+                "[([  1,  -1],) ([123,   1],)]")
+        struct_2dint = np.array([([[0, 1], [2, 3]],), ([[12, 0], [0, 0]],)],
+                dtype=[('B', 'i4', (2, 2))])
+        assert_equal(np.array2string(struct_2dint),
+                "[([[ 0,  1], [ 2,  3]],) ([[12,  0], [ 0,  0]],)]")
+
+    def test_structure_format_float(self):
+        # See #8172
+        array_scalar = np.array(
+                (1., 2.1234567890123456789, 3.), dtype=('f8,f8,f8'))
+        assert_equal(np.array2string(array_scalar), "(1., 2.12345679, 3.)")
+
+    def test_unstructured_void_repr(self):
+        a = np.array([27, 91, 50, 75, 7, 65, 10, 8, 27, 91, 51, 49, 109, 82, 101, 100],
+                      dtype='u1').view('V8')
+        assert_equal(repr(a[0]),
+            r"np.void(b'\x1B\x5B\x32\x4B\x07\x41\x0A\x08')")
+        assert_equal(str(a[0]), r"b'\x1B\x5B\x32\x4B\x07\x41\x0A\x08'")
+        assert_equal(repr(a),
+            r"array([b'\x1B\x5B\x32\x4B\x07\x41\x0A\x08',"
+            "\n"
+            r"       b'\x1B\x5B\x33\x31\x6D\x52\x65\x64'], dtype='|V8')")
+
+        assert_equal(eval(repr(a), vars(np)), a)
+        assert_equal(eval(repr(a[0]), {'np': np}), a[0])
+
+    def test_edgeitems_kwarg(self):
+        # previously the global print options would be taken over the kwarg
+        arr = np.zeros(3, int)
+        assert_equal(
+            np.array2string(arr, edgeitems=1, threshold=0),
+            "[0 ... 0]"
+        )
+
+    def test_summarize_1d(self):
+        A = np.arange(1001)
+        strA = '[   0    1    2 ...  998  999 1000]'
+        assert_equal(str(A), strA)
+
+        reprA = 'array([   0,    1,    2, ...,  998,  999, 1000])'
+        try:
+            np.set_printoptions(legacy='2.1')
+            assert_equal(repr(A), reprA)
+        finally:
+            np.set_printoptions(legacy=False)
+
+        assert_equal(repr(A), reprA.replace(')', ', shape=(1001,))'))
+
+    def test_summarize_2d(self):
+        A = np.arange(1002).reshape(2, 501)
+        strA = '[[   0    1    2 ...  498  499  500]\n' \
+               ' [ 501  502  503 ...  999 1000 1001]]'
+        assert_equal(str(A), strA)
+
+        reprA = 'array([[   0,    1,    2, ...,  498,  499,  500],\n' \
+                '       [ 501,  502,  503, ...,  999, 1000, 1001]])'
+        try:
+            np.set_printoptions(legacy='2.1')
+            assert_equal(repr(A), reprA)
+        finally:
+            np.set_printoptions(legacy=False)
+
+        assert_equal(repr(A), reprA.replace(')', ', shape=(2, 501))'))
+
+    def test_summarize_2d_dtype(self):
+        A = np.arange(1002, dtype='i2').reshape(2, 501)
+        strA = '[[   0    1    2 ...  498  499  500]\n' \
+               ' [ 501  502  503 ...  999 1000 1001]]'
+        assert_equal(str(A), strA)
+
+        reprA = ('array([[   0,    1,    2, ...,  498,  499,  500],\n'
+                 '       [ 501,  502,  503, ...,  999, 1000, 1001]],\n'
+                 '      shape=(2, 501), dtype=int16)')
+        assert_equal(repr(A), reprA)
+
+    def test_summarize_structure(self):
+        A = (np.arange(2002, dtype="<i8").reshape(2, 1001)
+             .view([('i', "<i8", (1001,))]))
+        strA = ("[[([   0,    1,    2, ...,  998,  999, 1000],)]\n"
+                " [([1001, 1002, 1003, ..., 1999, 2000, 2001],)]]")
+        assert_equal(str(A), strA)
+
+        reprA = ("array([[([   0,    1,    2, ...,  998,  999, 1000],)],\n"
+                 "       [([1001, 1002, 1003, ..., 1999, 2000, 2001],)]],\n"
+                 "      dtype=[('i', '<i8', (1001,))])")
+        assert_equal(repr(A), reprA)
+
+        B = np.ones(2002, dtype=">i8").view([('i', ">i8", (2, 1001))])
+        strB = "[([[1, 1, 1, ..., 1, 1, 1], [1, 1, 1, ..., 1, 1, 1]],)]"
+        assert_equal(str(B), strB)
+
+        reprB = (
+            "array([([[1, 1, 1, ..., 1, 1, 1], [1, 1, 1, ..., 1, 1, 1]],)],\n"
+            "      dtype=[('i', '>i8', (2, 1001))])"
+        )
+        assert_equal(repr(B), reprB)
+
+        C = (np.arange(22, dtype="<i8").reshape(2, 11)
+             .view([('i1', "<i8"), ('i10', "<i8", (10,))]))
+        strC = "[[( 0, [ 1, ..., 10])]\n [(11, [12, ..., 21])]]"
+        assert_equal(np.array2string(C, threshold=1, edgeitems=1), strC)
+
+    def test_linewidth(self):
+        a = np.full(6, 1)
+
+        def make_str(a, width, **kw):
+            return np.array2string(a, separator="", max_line_width=width, **kw)
+
+        assert_equal(make_str(a, 8, legacy='1.13'), '[111111]')
+        assert_equal(make_str(a, 7, legacy='1.13'), '[111111]')
+        assert_equal(make_str(a, 5, legacy='1.13'), '[1111\n'
+                                                    ' 11]')
+
+        assert_equal(make_str(a, 8), '[111111]')
+        assert_equal(make_str(a, 7), '[11111\n'
+                                     ' 1]')
+        assert_equal(make_str(a, 5), '[111\n'
+                                     ' 111]')
+
+        b = a[None, None, :]
+
+        assert_equal(make_str(b, 12, legacy='1.13'), '[[[111111]]]')
+        assert_equal(make_str(b,  9, legacy='1.13'), '[[[111111]]]')
+        assert_equal(make_str(b,  8, legacy='1.13'), '[[[11111\n'
+                                                     '   1]]]')
+
+        assert_equal(make_str(b, 12), '[[[111111]]]')
+        assert_equal(make_str(b,  9), '[[[111\n'
+                                      '   111]]]')
+        assert_equal(make_str(b,  8), '[[[11\n'
+                                      '   11\n'
+                                      '   11]]]')
+
+    def test_wide_element(self):
+        a = np.array(['xxxxx'])
+        assert_equal(
+            np.array2string(a, max_line_width=5),
+            "['xxxxx']"
+        )
+        assert_equal(
+            np.array2string(a, max_line_width=5, legacy='1.13'),
+            "[ 'xxxxx']"
+        )
+
+    def test_multiline_repr(self):
+        class MultiLine:
+            def __repr__(self):
+                return "Line 1\nLine 2"
+
+        a = np.array([[None, MultiLine()], [MultiLine(), None]])
+
+        assert_equal(
+            np.array2string(a),
+            '[[None Line 1\n'
+            '       Line 2]\n'
+            ' [Line 1\n'
+            '  Line 2 None]]'
+        )
+        assert_equal(
+            np.array2string(a, max_line_width=5),
+            '[[None\n'
+            '  Line 1\n'
+            '  Line 2]\n'
+            ' [Line 1\n'
+            '  Line 2\n'
+            '  None]]'
+        )
+        assert_equal(
+            repr(a),
+            'array([[None, Line 1\n'
+            '              Line 2],\n'
+            '       [Line 1\n'
+            '        Line 2, None]], dtype=object)'
+        )
+
+        class MultiLineLong:
+            def __repr__(self):
+                return "Line 1\nLooooooooooongestLine2\nLongerLine 3"
+
+        a = np.array([[None, MultiLineLong()], [MultiLineLong(), None]])
+        assert_equal(
+            repr(a),
+            'array([[None, Line 1\n'
+            '              LooooooooooongestLine2\n'
+            '              LongerLine 3          ],\n'
+            '       [Line 1\n'
+            '        LooooooooooongestLine2\n'
+            '        LongerLine 3          , None]], dtype=object)'
+        )
+        assert_equal(
+            np.array_repr(a, 20),
+            'array([[None,\n'
+            '        Line 1\n'
+            '        LooooooooooongestLine2\n'
+            '        LongerLine 3          ],\n'
+            '       [Line 1\n'
+            '        LooooooooooongestLine2\n'
+            '        LongerLine 3          ,\n'
+            '        None]],\n'
+            '      dtype=object)'
+        )
+
+    def test_nested_array_repr(self):
+        a = np.empty((2, 2), dtype=object)
+        a[0, 0] = np.eye(2)
+        a[0, 1] = np.eye(3)
+        a[1, 0] = None
+        a[1, 1] = np.ones((3, 1))
+        assert_equal(
+            repr(a),
+            'array([[array([[1., 0.],\n'
+            '               [0., 1.]]), array([[1., 0., 0.],\n'
+            '                                  [0., 1., 0.],\n'
+            '                                  [0., 0., 1.]])],\n'
+            '       [None, array([[1.],\n'
+            '                     [1.],\n'
+            '                     [1.]])]], dtype=object)'
+        )
+
+    @given(hynp.from_dtype(np.dtype("U")))
+    def test_any_text(self, text):
+        # This test checks that, given any value that can be represented in an
+        # array of dtype("U") (i.e. unicode string), ...
+        a = np.array([text, text, text])
+        # casting a list of them to an array does not e.g. truncate the value
+        assert_equal(a[0], text)
+        text = text.item()  # use raw python strings for repr below
+        # and that np.array2string puts a newline in the expected location
+        expected_repr = f"[{text!r} {text!r}\n {text!r}]"
+        result = np.array2string(a, max_line_width=len(repr(text)) * 2 + 3)
+        assert_equal(result, expected_repr)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    @pytest.mark.thread_unsafe(reason="garbage collector is global state")
+    def test_refcount(self):
+        # make sure we do not hold references to the array due to a recursive
+        # closure (gh-10620)
+        gc.disable()
+        a = np.arange(2)
+        r1 = sys.getrefcount(a)
+        np.array2string(a)
+        np.array2string(a)
+        r2 = sys.getrefcount(a)
+        gc.collect()
+        gc.enable()
+        assert_(r1 == r2)
+
+    def test_with_sign(self):
+        # mixed negative and positive value array
+        a = np.array([-2, 0, 3])
+        assert_equal(
+            np.array2string(a, sign='+'),
+            '[-2 +0 +3]'
+        )
+        assert_equal(
+            np.array2string(a, sign='-'),
+            '[-2  0  3]'
+        )
+        assert_equal(
+            np.array2string(a, sign=' '),
+            '[-2  0  3]'
+        )
+        # all non-negative array
+        a = np.array([2, 0, 3])
+        assert_equal(
+            np.array2string(a, sign='+'),
+            '[+2 +0 +3]'
+        )
+        assert_equal(
+            np.array2string(a, sign='-'),
+            '[2 0 3]'
+        )
+        assert_equal(
+            np.array2string(a, sign=' '),
+            '[ 2  0  3]'
+        )
+        # all negative array
+        a = np.array([-2, -1, -3])
+        assert_equal(
+            np.array2string(a, sign='+'),
+            '[-2 -1 -3]'
+        )
+        assert_equal(
+            np.array2string(a, sign='-'),
+            '[-2 -1 -3]'
+        )
+        assert_equal(
+            np.array2string(a, sign=' '),
+            '[-2 -1 -3]'
+        )
+        # 2d array mixed negative and positive
+        a = np.array([[10, -1, 1, 1], [10, 10, 10, 10]])
+        assert_equal(
+            np.array2string(a, sign='+'),
+            '[[+10  -1  +1  +1]\n [+10 +10 +10 +10]]'
+        )
+        assert_equal(
+            np.array2string(a, sign='-'),
+            '[[10 -1  1  1]\n [10 10 10 10]]'
+        )
+        assert_equal(
+            np.array2string(a, sign=' '),
+            '[[10 -1  1  1]\n [10 10 10 10]]'
+        )
+        # 2d array all positive
+        a = np.array([[10, 0, 1, 1], [10, 10, 10, 10]])
+        assert_equal(
+            np.array2string(a, sign='+'),
+            '[[+10  +0  +1  +1]\n [+10 +10 +10 +10]]'
+        )
+        assert_equal(
+            np.array2string(a, sign='-'),
+            '[[10  0  1  1]\n [10 10 10 10]]'
+        )
+        assert_equal(
+            np.array2string(a, sign=' '),
+            '[[ 10   0   1   1]\n [ 10  10  10  10]]'
+        )
+        # 2d array all negative
+        a = np.array([[-10, -1, -1, -1], [-10, -10, -10, -10]])
+        assert_equal(
+            np.array2string(a, sign='+'),
+            '[[-10  -1  -1  -1]\n [-10 -10 -10 -10]]'
+        )
+        assert_equal(
+            np.array2string(a, sign='-'),
+            '[[-10  -1  -1  -1]\n [-10 -10 -10 -10]]'
+        )
+        assert_equal(
+            np.array2string(a, sign=' '),
+            '[[-10  -1  -1  -1]\n [-10 -10 -10 -10]]'
+        )
+
+
+class TestPrintOptions:
+    """Test getting and setting global print options."""
+
+    def setup_method(self):
+        self.oldopts = np.get_printoptions()
+
+    def teardown_method(self):
+        np.set_printoptions(**self.oldopts)
+
+    def test_basic(self):
+        x = np.array([1.5, 0, 1.234567890])
+        assert_equal(repr(x), "array([1.5       , 0.        , 1.23456789])")
+        ret = np.set_printoptions(precision=4)
+        assert_equal(repr(x), "array([1.5   , 0.    , 1.2346])")
+        assert ret is None
+
+    def test_precision_zero(self):
+        np.set_printoptions(precision=0)
+        for values, string in (
+                ([0.], "0."), ([.3], "0."), ([-.3], "-0."), ([.7], "1."),
+                ([1.5], "2."), ([-1.5], "-2."), ([-15.34], "-15."),
+                ([100.], "100."), ([.2, -1, 122.51], "  0.,  -1., 123."),
+                ([0], "0"), ([-12], "-12"), ([complex(.3, -.7)], "0.-1.j")):
+            x = np.array(values)
+            assert_equal(repr(x), f"array([{string}])")
+
+    def test_formatter(self):
+        x = np.arange(3)
+        np.set_printoptions(formatter={'all': lambda x: str(x - 1)})
+        assert_equal(repr(x), "array([-1, 0, 1])")
+
+    def test_formatter_reset(self):
+        x = np.arange(3)
+        np.set_printoptions(formatter={'all': lambda x: str(x - 1)})
+        assert_equal(repr(x), "array([-1, 0, 1])")
+        np.set_printoptions(formatter={'int': None})
+        assert_equal(repr(x), "array([0, 1, 2])")
+
+        np.set_printoptions(formatter={'all': lambda x: str(x - 1)})
+        assert_equal(repr(x), "array([-1, 0, 1])")
+        np.set_printoptions(formatter={'all': None})
+        assert_equal(repr(x), "array([0, 1, 2])")
+
+        np.set_printoptions(formatter={'int': lambda x: str(x - 1)})
+        assert_equal(repr(x), "array([-1, 0, 1])")
+        np.set_printoptions(formatter={'int_kind': None})
+        assert_equal(repr(x), "array([0, 1, 2])")
+
+        x = np.arange(3.)
+        np.set_printoptions(formatter={'float': lambda x: str(x - 1)})
+        assert_equal(repr(x), "array([-1.0, 0.0, 1.0])")
+        np.set_printoptions(formatter={'float_kind': None})
+        assert_equal(repr(x), "array([0., 1., 2.])")
+
+    def test_override_repr(self):
+        x = np.arange(3)
+        np.set_printoptions(override_repr=lambda x: "FOO")
+        assert_equal(repr(x), "FOO")
+        np.set_printoptions(override_repr=None)
+        assert_equal(repr(x), "array([0, 1, 2])")
+
+        with np.printoptions(override_repr=lambda x: "BAR"):
+            assert_equal(repr(x), "BAR")
+        assert_equal(repr(x), "array([0, 1, 2])")
+
+    def test_0d_arrays(self):
+        assert_equal(str(np.array('café', '<U4')), 'café')
+
+        assert_equal(repr(np.array('café', '<U4')),
+                     "array('café', dtype='<U4')")
+        assert_equal(str(np.array('test', np.str_)), 'test')
+
+        a = np.zeros(1, dtype=[('a', '<i4', (3,))])
+        assert_equal(str(a[0]), '([0, 0, 0],)')
+
+        assert_equal(repr(np.datetime64('2005-02-25')[...]),
+                     "array('2005-02-25', dtype='datetime64[D]')")
+
+        assert_equal(repr(np.timedelta64('10', 'Y')[...]),
+                     "array(10, dtype='timedelta64[Y]')")
+
+        # repr of 0d arrays is affected by printoptions
+        x = np.array(1)
+        np.set_printoptions(formatter={'all': lambda x: "test"})
+        assert_equal(repr(x), "array(test)")
+        # str is unaffected
+        assert_equal(str(x), "1")
+
+        # check it works
+        np.array2string(np.array(1.), legacy='1.13')
+
+    def test_float_spacing(self):
+        x = np.array([1., 2., 3.])
+        y = np.array([1., 2., -10.])
+        z = np.array([100., 2., -1.])
+        w = np.array([-100., 2., 1.])
+
+        assert_equal(repr(x), 'array([1., 2., 3.])')
+        assert_equal(repr(y), 'array([  1.,   2., -10.])')
+        assert_equal(repr(np.array(y[0])), 'array(1.)')
+        assert_equal(repr(np.array(y[-1])), 'array(-10.)')
+        assert_equal(repr(z), 'array([100.,   2.,  -1.])')
+        assert_equal(repr(w), 'array([-100.,    2.,    1.])')
+
+        assert_equal(repr(np.array([np.nan, np.inf])), 'array([nan, inf])')
+        assert_equal(repr(np.array([np.nan, -np.inf])), 'array([ nan, -inf])')
+
+        x = np.array([np.inf, 100000, 1.1234])
+        y = np.array([np.inf, 100000, -1.1234])
+        z = np.array([np.inf, 1.1234, -1e120])
+        np.set_printoptions(precision=2)
+        assert_equal(repr(x), 'array([     inf, 1.00e+05, 1.12e+00])')
+        assert_equal(repr(y), 'array([      inf,  1.00e+05, -1.12e+00])')
+        assert_equal(repr(z), 'array([       inf,  1.12e+000, -1.00e+120])')
+
+    def test_bool_spacing(self):
+        assert_equal(repr(np.array([True, True])),
+                     'array([ True,  True])')
+        assert_equal(repr(np.array([True, False])),
+                     'array([ True, False])')
+        assert_equal(repr(np.array([True])),
+                     'array([ True])')
+        assert_equal(repr(np.array(True)),
+                     'array(True)')
+        assert_equal(repr(np.array(False)),
+                     'array(False)')
+
+    def test_sign_spacing(self):
+        a = np.arange(4.)
+        b = np.array([1.234e9])
+        c = np.array([1.0 + 1.0j, 1.123456789 + 1.123456789j], dtype='c16')
+
+        assert_equal(repr(a), 'array([0., 1., 2., 3.])')
+        assert_equal(repr(np.array(1.)), 'array(1.)')
+        assert_equal(repr(b), 'array([1.234e+09])')
+        assert_equal(repr(np.array([0.])), 'array([0.])')
+        assert_equal(repr(c),
+            "array([1.        +1.j        , 1.12345679+1.12345679j])")
+        assert_equal(repr(np.array([0., -0.])), 'array([ 0., -0.])')
+
+        np.set_printoptions(sign=' ')
+        assert_equal(repr(a), 'array([ 0.,  1.,  2.,  3.])')
+        assert_equal(repr(np.array(1.)), 'array( 1.)')
+        assert_equal(repr(b), 'array([ 1.234e+09])')
+        assert_equal(repr(c),
+            "array([ 1.        +1.j        ,  1.12345679+1.12345679j])")
+        assert_equal(repr(np.array([0., -0.])), 'array([ 0., -0.])')
+
+        np.set_printoptions(sign='+')
+        assert_equal(repr(a), 'array([+0., +1., +2., +3.])')
+        assert_equal(repr(np.array(1.)), 'array(+1.)')
+        assert_equal(repr(b), 'array([+1.234e+09])')
+        assert_equal(repr(c),
+            "array([+1.        +1.j        , +1.12345679+1.12345679j])")
+
+        np.set_printoptions(legacy='1.13')
+        assert_equal(repr(a), 'array([ 0.,  1.,  2.,  3.])')
+        assert_equal(repr(b),  'array([  1.23400000e+09])')
+        assert_equal(repr(-b), 'array([ -1.23400000e+09])')
+        assert_equal(repr(np.array(1.)), 'array(1.0)')
+        assert_equal(repr(np.array([0.])), 'array([ 0.])')
+        assert_equal(repr(c),
+            "array([ 1.00000000+1.j        ,  1.12345679+1.12345679j])")
+        # gh-10383
+        assert_equal(str(np.array([-1., 10])), "[ -1.  10.]")
+
+        assert_raises(TypeError, np.set_printoptions, wrongarg=True)
+
+    def test_float_overflow_nowarn(self):
+        # make sure internal computations in FloatingFormat don't
+        # warn about overflow
+        repr(np.array([1e4, 0.1], dtype='f2'))
+
+    def test_sign_spacing_structured(self):
+        a = np.ones(2, dtype='<f,<f')
+        assert_equal(repr(a),
+            "array([(1., 1.), (1., 1.)], dtype=[('f0', '<f4'), ('f1', '<f4')])")
+        assert_equal(repr(a[0]),
+            "np.void((1.0, 1.0), dtype=[('f0', '<f4'), ('f1', '<f4')])")
+
+    def test_floatmode(self):
+        x = np.array([0.6104, 0.922, 0.457, 0.0906, 0.3733, 0.007244,
+                      0.5933, 0.947, 0.2383, 0.4226], dtype=np.float16)
+        y = np.array([0.2918820979355541, 0.5064172631089138,
+                      0.2848750619642916, 0.4342965294660567,
+                      0.7326538397312751, 0.3459503329096204,
+                      0.0862072768214508, 0.39112753029631175],
+                      dtype=np.float64)
+        z = np.arange(6, dtype=np.float16) / 10
+        c = np.array([1.0 + 1.0j, 1.123456789 + 1.123456789j], dtype='c16')
+
+        # also make sure 1e23 is right (is between two fp numbers)
+        w = np.array([f'1e{i}' for i in range(25)], dtype=np.float64)
+        # note: we construct w from the strings `1eXX` instead of doing
+        # `10.**arange(24)` because it turns out the two are not equivalent in
+        # python. On some architectures `1e23 != 10.**23`.
+        wp = np.array([1.234e1, 1e2, 1e123])
+
+        # unique mode
+        np.set_printoptions(floatmode='unique')
+        assert_equal(repr(x),
+            "array([0.6104  , 0.922   , 0.457   , 0.0906  , 0.3733  , 0.007244,\n"
+            "       0.5933  , 0.947   , 0.2383  , 0.4226  ], dtype=float16)")
+        assert_equal(repr(y),
+            "array([0.2918820979355541 , 0.5064172631089138 , 0.2848750619642916 ,\n"
+            "       0.4342965294660567 , 0.7326538397312751 , 0.3459503329096204 ,\n"
+            "       0.0862072768214508 , 0.39112753029631175])")
+        assert_equal(repr(z),
+            "array([0. , 0.1, 0.2, 0.3, 0.4, 0.5], dtype=float16)")
+        assert_equal(repr(w),
+            "array([1.e+00, 1.e+01, 1.e+02, 1.e+03, 1.e+04, 1.e+05, 1.e+06, 1.e+07,\n"
+            "       1.e+08, 1.e+09, 1.e+10, 1.e+11, 1.e+12, 1.e+13, 1.e+14, 1.e+15,\n"
+            "       1.e+16, 1.e+17, 1.e+18, 1.e+19, 1.e+20, 1.e+21, 1.e+22, 1.e+23,\n"
+            "       1.e+24])")
+        assert_equal(repr(wp), "array([1.234e+001, 1.000e+002, 1.000e+123])")
+        assert_equal(repr(c),
+            "array([1.         +1.j         , 1.123456789+1.123456789j])")
+
+        # maxprec mode, precision=8
+        np.set_printoptions(floatmode='maxprec', precision=8)
+        assert_equal(repr(x),
+            "array([0.6104  , 0.922   , 0.457   , 0.0906  , 0.3733  , 0.007244,\n"
+            "       0.5933  , 0.947   , 0.2383  , 0.4226  ], dtype=float16)")
+        assert_equal(repr(y),
+            "array([0.2918821 , 0.50641726, 0.28487506, 0.43429653, 0.73265384,\n"
+            "       0.34595033, 0.08620728, 0.39112753])")
+        assert_equal(repr(z),
+            "array([0. , 0.1, 0.2, 0.3, 0.4, 0.5], dtype=float16)")
+        assert_equal(repr(w[::5]),
+            "array([1.e+00, 1.e+05, 1.e+10, 1.e+15, 1.e+20])")
+        assert_equal(repr(wp), "array([1.234e+001, 1.000e+002, 1.000e+123])")
+        assert_equal(repr(c),
+            "array([1.        +1.j        , 1.12345679+1.12345679j])")
+
+        # fixed mode, precision=4
+        np.set_printoptions(floatmode='fixed', precision=4)
+        assert_equal(repr(x),
+            "array([0.6104, 0.9219, 0.4570, 0.0906, 0.3733, 0.0072, 0.5933, 0.9468,\n"
+            "       0.2383, 0.4226], dtype=float16)")
+        assert_equal(repr(y),
+            "array([0.2919, 0.5064, 0.2849, 0.4343, 0.7327, 0.3460, 0.0862, 0.3911])")
+        assert_equal(repr(z),
+            "array([0.0000, 0.1000, 0.2000, 0.3000, 0.3999, 0.5000], dtype=float16)")
+        assert_equal(repr(w[::5]),
+            "array([1.0000e+00, 1.0000e+05, 1.0000e+10, 1.0000e+15, 1.0000e+20])")
+        assert_equal(repr(wp), "array([1.2340e+001, 1.0000e+002, 1.0000e+123])")
+        assert_equal(repr(np.zeros(3)), "array([0.0000, 0.0000, 0.0000])")
+        assert_equal(repr(c),
+            "array([1.0000+1.0000j, 1.1235+1.1235j])")
+        # for larger precision, representation error becomes more apparent:
+        np.set_printoptions(floatmode='fixed', precision=8)
+        assert_equal(repr(z),
+            "array([0.00000000, 0.09997559, 0.19995117, 0.30004883, 0.39990234,\n"
+            "       0.50000000], dtype=float16)")
+
+        # maxprec_equal  mode, precision=8
+        np.set_printoptions(floatmode='maxprec_equal', precision=8)
+        assert_equal(repr(x),
+            "array([0.610352, 0.921875, 0.457031, 0.090576, 0.373291, 0.007244,\n"
+            "       0.593262, 0.946777, 0.238281, 0.422607], dtype=float16)")
+        assert_equal(repr(y),
+            "array([0.29188210, 0.50641726, 0.28487506, 0.43429653, 0.73265384,\n"
+            "       0.34595033, 0.08620728, 0.39112753])")
+        assert_equal(repr(z),
+            "array([0.0, 0.1, 0.2, 0.3, 0.4, 0.5], dtype=float16)")
+        assert_equal(repr(w[::5]),
+            "array([1.e+00, 1.e+05, 1.e+10, 1.e+15, 1.e+20])")
+        assert_equal(repr(wp), "array([1.234e+001, 1.000e+002, 1.000e+123])")
+        assert_equal(repr(c),
+            "array([1.00000000+1.00000000j, 1.12345679+1.12345679j])")
+
+        # test unique special case (gh-18609)
+        a = np.float64.fromhex('-1p-97')
+        assert_equal(np.float64(np.array2string(a, floatmode='unique')), a)
+
+    test_cases_gh_28679 = [
+        (np.half([999, 999]), "[999. 999.]"),
+        (np.half([999, 1000]), "[9.99e+02 1.00e+03]"),
+        (np.single([999999, 999999]), "[999999. 999999.]"),
+        (np.single([999999, -1000000]), "[ 9.99999e+05 -1.00000e+06]"),
+        (
+            np.complex64([999999 + 999999j, 999999 + 999999j]),
+            "[999999.+999999.j 999999.+999999.j]"
+        ),
+        (
+            np.complex64([999999 + 999999j, 999999 + -1000000j]),
+            "[999999.+9.99999e+05j 999999.-1.00000e+06j]"
+        ),
+    ]
+
+    @pytest.mark.parametrize("input_array, expected_str", test_cases_gh_28679)
+    def test_gh_28679(self, input_array, expected_str):
+        # test cutoff to exponent notation for half, single, and complex64
+        assert_equal(str(input_array), expected_str)
+
+    test_cases_legacy_2_2 = [
+        (np.half([1.e3, 1.e4, 65504]), "[ 1000. 10000. 65504.]"),
+        (np.single([1.e6, 1.e7]), "[ 1000000. 10000000.]"),
+        (np.single([1.e7, 1.e8]), "[1.e+07 1.e+08]"),
+    ]
+
+    @pytest.mark.parametrize("input_array, expected_str", test_cases_legacy_2_2)
+    def test_legacy_2_2_mode(self, input_array, expected_str):
+        # test legacy cutoff to exponent notation for half and single
+        with np.printoptions(legacy='2.2'):
+            assert_equal(str(input_array), expected_str)
+
+    @pytest.mark.parametrize("legacy", ['1.13', '1.21', '1.25', '2.1', '2.2'])
+    def test_legacy_get_options(self, legacy):
+        # test legacy get options works okay
+        with np.printoptions(legacy=legacy):
+            p_opt = np.get_printoptions()
+            assert_equal(p_opt["legacy"], legacy)
+
+    def test_legacy_mode_scalars(self):
+        # in legacy mode, str of floats get truncated, and complex scalars
+        # use * for non-finite imaginary part
+        np.set_printoptions(legacy='1.13')
+        assert_equal(str(np.float64(1.123456789123456789)), '1.12345678912')
+        assert_equal(str(np.complex128(complex(1, np.nan))), '(1+nan*j)')
+
+        np.set_printoptions(legacy=False)
+        assert_equal(str(np.float64(1.123456789123456789)),
+                     '1.1234567891234568')
+        assert_equal(str(np.complex128(complex(1, np.nan))), '(1+nanj)')
+
+    def test_legacy_stray_comma(self):
+        np.set_printoptions(legacy='1.13')
+        assert_equal(str(np.arange(10000)), '[   0    1    2 ..., 9997 9998 9999]')
+
+        np.set_printoptions(legacy=False)
+        assert_equal(str(np.arange(10000)), '[   0    1    2 ... 9997 9998 9999]')
+
+    def test_dtype_linewidth_wrapping(self):
+        np.set_printoptions(linewidth=75)
+        assert_equal(repr(np.arange(10, 20., dtype='f4')),
+            "array([10., 11., 12., 13., 14., 15., 16., 17., 18., 19.], dtype=float32)")
+        assert_equal(repr(np.arange(10, 23., dtype='f4')), textwrap.dedent("""\
+            array([10., 11., 12., 13., 14., 15., 16., 17., 18., 19., 20., 21., 22.],
+                  dtype=float32)"""))
+
+        styp = '<U4'
+        assert_equal(repr(np.ones(3, dtype=styp)),
+            f"array(['1', '1', '1'], dtype='{styp}')")
+        assert_equal(repr(np.ones(12, dtype=styp)), textwrap.dedent(f"""\
+            array(['1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1', '1'],
+                  dtype='{styp}')"""))
+
+    @pytest.mark.parametrize(
+        ['native'],
+        [
+            ('bool',),
+            ('uint8',),
+            ('uint16',),
+            ('uint32',),
+            ('uint64',),
+            ('int8',),
+            ('int16',),
+            ('int32',),
+            ('int64',),
+            ('float16',),
+            ('float32',),
+            ('float64',),
+            ('U1',),     # 4-byte width string
+        ],
+    )
+    def test_dtype_endianness_repr(self, native):
+        '''
+        there was an issue where
+        repr(array([0], dtype='<u2')) and repr(array([0], dtype='>u2'))
+        both returned the same thing:
+        array([0], dtype=uint16)
+        even though their dtypes have different endianness.
+        '''
+        native_dtype = np.dtype(native)
+        non_native_dtype = native_dtype.newbyteorder()
+        non_native_repr = repr(np.array([1], non_native_dtype))
+        native_repr = repr(np.array([1], native_dtype))
+        # preserve the sensible default of only showing dtype if nonstandard
+        assert ('dtype' in native_repr) ^ (native_dtype in _typelessdata),\
+                ("an array's repr should show dtype if and only if the type "
+                 'of the array is NOT one of the standard types '
+                 '(e.g., int32, bool, float64).')
+        if non_native_dtype.itemsize > 1:
+            # if the type is >1 byte, the non-native endian version
+            # must show endianness.
+            assert non_native_repr != native_repr
+            assert f"dtype='{non_native_dtype.byteorder}" in non_native_repr
+
+    def test_linewidth_repr(self):
+        a = np.full(7, fill_value=2)
+        np.set_printoptions(linewidth=17)
+        assert_equal(
+            repr(a),
+            textwrap.dedent("""\
+            array([2, 2, 2,
+                   2, 2, 2,
+                   2])""")
+        )
+        np.set_printoptions(linewidth=17, legacy='1.13')
+        assert_equal(
+            repr(a),
+            textwrap.dedent("""\
+            array([2, 2, 2,
+                   2, 2, 2, 2])""")
+        )
+
+        a = np.full(8, fill_value=2)
+
+        np.set_printoptions(linewidth=18, legacy=False)
+        assert_equal(
+            repr(a),
+            textwrap.dedent("""\
+            array([2, 2, 2,
+                   2, 2, 2,
+                   2, 2])""")
+        )
+
+        np.set_printoptions(linewidth=18, legacy='1.13')
+        assert_equal(
+            repr(a),
+            textwrap.dedent("""\
+            array([2, 2, 2, 2,
+                   2, 2, 2, 2])""")
+        )
+
+    def test_linewidth_str(self):
+        a = np.full(18, fill_value=2)
+        np.set_printoptions(linewidth=18)
+        assert_equal(
+            str(a),
+            textwrap.dedent("""\
+            [2 2 2 2 2 2 2 2
+             2 2 2 2 2 2 2 2
+             2 2]""")
+        )
+        np.set_printoptions(linewidth=18, legacy='1.13')
+        assert_equal(
+            str(a),
+            textwrap.dedent("""\
+            [2 2 2 2 2 2 2 2 2
+             2 2 2 2 2 2 2 2 2]""")
+        )
+
+    def test_edgeitems(self):
+        np.set_printoptions(edgeitems=1, threshold=1)
+        a = np.arange(27).reshape((3, 3, 3))
+        assert_equal(
+            repr(a),
+            textwrap.dedent("""\
+            array([[[ 0, ...,  2],
+                    ...,
+                    [ 6, ...,  8]],
+
+                   ...,
+
+                   [[18, ..., 20],
+                    ...,
+                    [24, ..., 26]]], shape=(3, 3, 3))""")
+        )
+
+        b = np.zeros((3, 3, 1, 1))
+        assert_equal(
+            repr(b),
+            textwrap.dedent("""\
+            array([[[[0.]],
+
+                    ...,
+
+                    [[0.]]],
+
+
+                   ...,
+
+
+                   [[[0.]],
+
+                    ...,
+
+                    [[0.]]]], shape=(3, 3, 1, 1))""")
+        )
+
+        # 1.13 had extra trailing spaces, and was missing newlines
+        try:
+            np.set_printoptions(legacy='1.13')
+            assert_equal(repr(a), (
+                "array([[[ 0, ...,  2],\n"
+                "        ..., \n"
+                "        [ 6, ...,  8]],\n"
+                "\n"
+                "       ..., \n"
+                "       [[18, ..., 20],\n"
+                "        ..., \n"
+                "        [24, ..., 26]]])")
+            )
+            assert_equal(repr(b), (
+                "array([[[[ 0.]],\n"
+                "\n"
+                "        ..., \n"
+                "        [[ 0.]]],\n"
+                "\n"
+                "\n"
+                "       ..., \n"
+                "       [[[ 0.]],\n"
+                "\n"
+                "        ..., \n"
+                "        [[ 0.]]]])")
+            )
+        finally:
+            np.set_printoptions(legacy=False)
+
+    def test_edgeitems_structured(self):
+        np.set_printoptions(edgeitems=1, threshold=1)
+        A = np.arange(5 * 2 * 3, dtype="<i8").view([('i', "<i8", (5, 2, 3))])
+        reprA = (
+            "array([([[[ 0, ...,  2], [ 3, ...,  5]], ..., "
+            "[[24, ..., 26], [27, ..., 29]]],)],\n"
+            "      dtype=[('i', '<i8', (5, 2, 3))])"
+        )
+        assert_equal(repr(A), reprA)
+
+    def test_bad_args(self):
+        assert_raises(ValueError, np.set_printoptions, threshold=float('nan'))
+        assert_raises(TypeError, np.set_printoptions, threshold='1')
+        assert_raises(TypeError, np.set_printoptions, threshold=b'1')
+
+        assert_raises(TypeError, np.set_printoptions, precision='1')
+        assert_raises(TypeError, np.set_printoptions, precision=1.5)
+
+def test_unicode_object_array():
+    expected = "array(['é'], dtype=object)"
+    x = np.array(['\xe9'], dtype=object)
+    assert_equal(repr(x), expected)
+
+
+class TestContextManager:
+    def test_ctx_mgr(self):
+        # test that context manager actually works
+        with np.printoptions(precision=2):
+            s = str(np.array([2.0]) / 3)
+        assert_equal(s, '[0.67]')
+
+    def test_ctx_mgr_restores(self):
+        # test that print options are actually restored
+        opts = np.get_printoptions()
+        with np.printoptions(precision=opts['precision'] - 1,
+                             linewidth=opts['linewidth'] - 4):
+            pass
+        assert_equal(np.get_printoptions(), opts)
+
+    def test_ctx_mgr_exceptions(self):
+        # test that print options are restored even if an exception is raised
+        opts = np.get_printoptions()
+        try:
+            with np.printoptions(precision=2, linewidth=11):
+                raise ValueError
+        except ValueError:
+            pass
+        assert_equal(np.get_printoptions(), opts)
+
+    def test_ctx_mgr_as_smth(self):
+        opts = {"precision": 2}
+        with np.printoptions(**opts) as ctx:
+            saved_opts = ctx.copy()
+        assert_equal({k: saved_opts[k] for k in opts}, opts)
+
+
+@pytest.mark.parametrize("dtype", "bhilqpBHILQPefdgFDG")
+@pytest.mark.parametrize("value", [0, 1])
+def test_scalar_repr_numbers(dtype, value):
+    # Test NEP 51 scalar repr (and legacy option) for numeric types
+    dtype = np.dtype(dtype)
+    scalar = np.array(value, dtype=dtype)[()]
+    assert isinstance(scalar, np.generic)
+
+    string = str(scalar)
+    repr_string = string.strip("()")  # complex may have extra brackets
+    representation = repr(scalar)
+    if dtype.char == "g":
+        assert representation == f"np.longdouble('{repr_string}')"
+    elif dtype.char == 'G':
+        assert representation == f"np.clongdouble('{repr_string}')"
+    else:
+        normalized_name = np.dtype(f"{dtype.kind}{dtype.itemsize}").type.__name__
+        assert representation == f"np.{normalized_name}({repr_string})"
+
+    with np.printoptions(legacy="1.25"):
+        assert repr(scalar) == string
+
+
+@pytest.mark.parametrize("scalar, legacy_repr, representation", [
+        (np.True_, "True", "np.True_"),
+        (np.bytes_(b'a'), "b'a'", "np.bytes_(b'a')"),
+        (np.str_('a'), "'a'", "np.str_('a')"),
+        (np.datetime64("2012"),
+            "numpy.datetime64('2012')", "np.datetime64('2012')"),
+        (np.timedelta64(1), "numpy.timedelta64(1)", "np.timedelta64(1)"),
+        (np.void((True, 2), dtype="?,<i8"),
+            "(True, 2)",
+            "np.void((True, 2), dtype=[('f0', '?'), ('f1', '<i8')])"),
+        (np.void((1, 2), dtype="<f8,>f4"),
+            "(1., 2.)",
+            "np.void((1.0, 2.0), dtype=[('f0', '<f8'), ('f1', '>f4')])"),
+        (np.void(b'a'), r"void(b'\x61')", r"np.void(b'\x61')"),
+    ])
+def test_scalar_repr_special(scalar, legacy_repr, representation):
+    # Test NEP 51 scalar repr (and legacy option) for numeric types
+    assert repr(scalar) == representation
+
+    with np.printoptions(legacy="1.25"):
+        assert repr(scalar) == legacy_repr
+
+def test_scalar_void_float_str():
+    # Note that based on this currently we do not print the same as a tuple
+    # would, since the tuple would include the repr() inside for floats, but
+    # we do not do that.
+    scalar = np.void((1.0, 2.0), dtype=[('f0', '<f8'), ('f1', '>f4')])
+    assert str(scalar) == "(1.0, 2.0)"
+
+@pytest.mark.skipif(IS_WASM, reason="wasm doesn't support asyncio")
+@pytest.mark.skipif(sys.version_info < (3, 11),
+                    reason="asyncio.barrier was added in Python 3.11")
+def test_printoptions_asyncio_safe():
+    asyncio = pytest.importorskip("asyncio")
+
+    b = asyncio.Barrier(2)
+
+    async def legacy_113():
+        np.set_printoptions(legacy='1.13', precision=12)
+        await b.wait()
+        po = np.get_printoptions()
+        assert po['legacy'] == '1.13'
+        assert po['precision'] == 12
+        orig_linewidth = po['linewidth']
+        with np.printoptions(linewidth=34, legacy='1.21'):
+            po = np.get_printoptions()
+            assert po['legacy'] == '1.21'
+            assert po['precision'] == 12
+            assert po['linewidth'] == 34
+        po = np.get_printoptions()
+        assert po['linewidth'] == orig_linewidth
+        assert po['legacy'] == '1.13'
+        assert po['precision'] == 12
+
+    async def legacy_125():
+        np.set_printoptions(legacy='1.25', precision=7)
+        await b.wait()
+        po = np.get_printoptions()
+        assert po['legacy'] == '1.25'
+        assert po['precision'] == 7
+        orig_linewidth = po['linewidth']
+        with np.printoptions(linewidth=6, legacy='1.13'):
+            po = np.get_printoptions()
+            assert po['legacy'] == '1.13'
+            assert po['precision'] == 7
+            assert po['linewidth'] == 6
+        po = np.get_printoptions()
+        assert po['linewidth'] == orig_linewidth
+        assert po['legacy'] == '1.25'
+        assert po['precision'] == 7
+
+    async def main():
+        await asyncio.gather(legacy_125(), legacy_125())
+
+    loop = asyncio.new_event_loop()
+    asyncio.run(main())
+    loop.close()
+
+@pytest.mark.skipif(IS_WASM, reason="wasm doesn't support threads")
+@pytest.mark.thread_unsafe(reason="test is already explicitly multi-threaded")
+def test_multithreaded_array_printing():
+    # the dragon4 implementation uses a static scratch space for performance
+    # reasons this test makes sure it is set up in a thread-safe manner
+
+    run_threaded(TestPrintOptions().test_floatmode, 500)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_casting_floatingpoint_errors.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_casting_floatingpoint_errors.py
new file mode 100644
index 0000000000000000000000000000000000000000..8365a7407e2d8552fe717589f5a343b32163334a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_casting_floatingpoint_errors.py
@@ -0,0 +1,154 @@
+import pytest
+from pytest import param
+
+import numpy as np
+from numpy.testing import IS_WASM
+
+
+def values_and_dtypes():
+    """
+    Generate value+dtype pairs that generate floating point errors during
+    casts.  The invalid casts to integers will generate "invalid" value
+    warnings, the float casts all generate "overflow".
+
+    (The Python int/float paths don't need to get tested in all the same
+    situations, but it does not hurt.)
+    """
+    # Casting to float16:
+    yield param(70000, "float16", id="int-to-f2")
+    yield param("70000", "float16", id="str-to-f2")
+    yield param(70000.0, "float16", id="float-to-f2")
+    yield param(np.longdouble(70000.), "float16", id="longdouble-to-f2")
+    yield param(np.float64(70000.), "float16", id="double-to-f2")
+    yield param(np.float32(70000.), "float16", id="float-to-f2")
+    # Casting to float32:
+    yield param(10**100, "float32", id="int-to-f4")
+    yield param(1e100, "float32", id="float-to-f2")
+    yield param(np.longdouble(1e300), "float32", id="longdouble-to-f2")
+    yield param(np.float64(1e300), "float32", id="double-to-f2")
+    # Casting to float64:
+    # If longdouble is double-double, its max can be rounded down to the double
+    # max.  So we correct the double spacing (a bit weird, admittedly):
+    max_ld = np.finfo(np.longdouble).max
+    spacing = np.spacing(np.nextafter(np.finfo("f8").max, 0))
+    if max_ld - spacing > np.finfo("f8").max:
+        yield param(np.finfo(np.longdouble).max, "float64",
+                    id="longdouble-to-f8")
+
+    # Cast to complex32:
+    yield param(2e300, "complex64", id="float-to-c8")
+    yield param(2e300 + 0j, "complex64", id="complex-to-c8")
+    yield param(2e300j, "complex64", id="complex-to-c8")
+    yield param(np.longdouble(2e300), "complex64", id="longdouble-to-c8")
+
+    # Invalid float to integer casts:
+    with np.errstate(over="ignore"):
+        for to_dt in np.typecodes["AllInteger"]:
+            for value in [np.inf, np.nan]:
+                for from_dt in np.typecodes["AllFloat"]:
+                    from_dt = np.dtype(from_dt)
+                    from_val = from_dt.type(value)
+
+                    yield param(from_val, to_dt, id=f"{from_val}-to-{to_dt}")
+
+
+def check_operations(dtype, value):
+    """
+    There are many dedicated paths in NumPy which cast and should check for
+    floating point errors which occurred during those casts.
+    """
+    if dtype.kind != 'i':
+        # These assignments use the stricter setitem logic:
+        def assignment():
+            arr = np.empty(3, dtype=dtype)
+            arr[0] = value
+
+        yield assignment
+
+        def fill():
+            arr = np.empty(3, dtype=dtype)
+            arr.fill(value)
+
+        yield fill
+
+    def copyto_scalar():
+        arr = np.empty(3, dtype=dtype)
+        np.copyto(arr, value, casting="unsafe")
+
+    yield copyto_scalar
+
+    def copyto():
+        arr = np.empty(3, dtype=dtype)
+        np.copyto(arr, np.array([value, value, value]), casting="unsafe")
+
+    yield copyto
+
+    def copyto_scalar_masked():
+        arr = np.empty(3, dtype=dtype)
+        np.copyto(arr, value, casting="unsafe",
+                  where=[True, False, True])
+
+    yield copyto_scalar_masked
+
+    def copyto_masked():
+        arr = np.empty(3, dtype=dtype)
+        np.copyto(arr, np.array([value, value, value]), casting="unsafe",
+                  where=[True, False, True])
+
+    yield copyto_masked
+
+    def direct_cast():
+        np.array([value, value, value]).astype(dtype)
+
+    yield direct_cast
+
+    def direct_cast_nd_strided():
+        arr = np.full((5, 5, 5), fill_value=value)[:, ::2, :]
+        arr.astype(dtype)
+
+    yield direct_cast_nd_strided
+
+    def boolean_array_assignment():
+        arr = np.empty(3, dtype=dtype)
+        arr[[True, False, True]] = np.array([value, value])
+
+    yield boolean_array_assignment
+
+    def integer_array_assignment():
+        arr = np.empty(3, dtype=dtype)
+        values = np.array([value, value])
+
+        arr[[0, 1]] = values
+
+    yield integer_array_assignment
+
+    def integer_array_assignment_with_subspace():
+        arr = np.empty((5, 3), dtype=dtype)
+        values = np.array([value, value, value])
+
+        arr[[0, 2]] = values
+
+    yield integer_array_assignment_with_subspace
+
+    def flat_assignment():
+        arr = np.empty((3,), dtype=dtype)
+        values = np.array([value, value, value])
+        arr.flat[:] = values
+
+    yield flat_assignment
+
+@pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support")
+@pytest.mark.parametrize(["value", "dtype"], values_and_dtypes())
+@pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+def test_floatingpoint_errors_casting(dtype, value):
+    dtype = np.dtype(dtype)
+    for operation in check_operations(dtype, value):
+        dtype = np.dtype(dtype)
+
+        match = "invalid" if dtype.kind in 'iu' else "overflow"
+        with pytest.warns(RuntimeWarning, match=match):
+            operation()
+
+        with np.errstate(all="raise"):
+            with pytest.raises(FloatingPointError, match=match):
+                operation()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_casting_unittests.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_casting_unittests.py
new file mode 100644
index 0000000000000000000000000000000000000000..f89966e9559740aaf1085b0d78e24a7f2c23cd8a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_casting_unittests.py
@@ -0,0 +1,955 @@
+"""
+The tests exercise the casting machinery in a more low-level manner.
+The reason is mostly to test a new implementation of the casting machinery.
+
+Unlike most tests in NumPy, these are closer to unit-tests rather
+than integration tests.
+"""
+
+import ctypes
+import enum
+import random
+import textwrap
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_umath import _get_castingimpl as get_castingimpl
+from numpy.lib.stride_tricks import as_strided
+from numpy.testing import assert_array_equal, assert_equal
+
+# Simple skips object, parametric and long double (unsupported by struct)
+simple_dtypes = "?bhilqBHILQefdFD"
+if np.dtype("l").itemsize != np.dtype("q").itemsize:
+    # Remove l and L, the table was generated with 64bit linux in mind.
+    simple_dtypes = simple_dtypes.replace("l", "").replace("L", "")
+simple_dtypes = [type(np.dtype(c)) for c in simple_dtypes]
+
+
+def simple_dtype_instances():
+    for dtype_class in simple_dtypes:
+        dt = dtype_class()
+        yield pytest.param(dt, id=str(dt))
+        if dt.byteorder != "|":
+            dt = dt.newbyteorder()
+            yield pytest.param(dt, id=str(dt))
+
+
+def get_expected_stringlength(dtype):
+    """Returns the string length when casting the basic dtypes to strings.
+    """
+    if dtype == np.bool:
+        return 5
+    if dtype.kind in "iu":
+        if dtype.itemsize == 1:
+            length = 3
+        elif dtype.itemsize == 2:
+            length = 5
+        elif dtype.itemsize == 4:
+            length = 10
+        elif dtype.itemsize == 8:
+            length = 20
+        else:
+            raise AssertionError(f"did not find expected length for {dtype}")
+
+        if dtype.kind == "i":
+            length += 1  # adds one character for the sign
+
+        return length
+
+    # Note: Can't do dtype comparison for longdouble on windows
+    if dtype.char == "g":
+        return 48
+    elif dtype.char == "G":
+        return 48 * 2
+    elif dtype.kind == "f":
+        return 32  # also for half apparently.
+    elif dtype.kind == "c":
+        return 32 * 2
+
+    raise AssertionError(f"did not find expected length for {dtype}")
+
+
+class Casting(enum.IntEnum):
+    no = 0
+    equiv = 1
+    safe = 2
+    same_kind = 3
+    unsafe = 4
+    same_value = 64
+
+
+same_value_dtypes = tuple(type(np.dtype(c)) for c in "?bhilqBHILQefdgFDG")
+
+def _get_cancast_table():
+    table = textwrap.dedent("""
+        X ? b h i l q B H I L Q e f d g F D G S U V O M m
+        ? # = = = = = = = = = = = = = = = = = = = = = . =
+        b . # = = = = . . . . . = = = = = = = = = = = . =
+        h . ~ # = = = . . . . . ~ = = = = = = = = = = . =
+        i . ~ ~ # = = . . . . . ~ ~ = = ~ = = = = = = . =
+        l . ~ ~ ~ # # . . . . . ~ ~ = = ~ = = = = = = . =
+        q . ~ ~ ~ # # . . . . . ~ ~ = = ~ = = = = = = . =
+        B . ~ = = = = # = = = = = = = = = = = = = = = . =
+        H . ~ ~ = = = ~ # = = = ~ = = = = = = = = = = . =
+        I . ~ ~ ~ = = ~ ~ # = = ~ ~ = = ~ = = = = = = . =
+        L . ~ ~ ~ ~ ~ ~ ~ ~ # # ~ ~ = = ~ = = = = = = . ~
+        Q . ~ ~ ~ ~ ~ ~ ~ ~ # # ~ ~ = = ~ = = = = = = . ~
+        e . . . . . . . . . . . # = = = = = = = = = = . .
+        f . . . . . . . . . . . ~ # = = = = = = = = = . .
+        d . . . . . . . . . . . ~ ~ # = ~ = = = = = = . .
+        g . . . . . . . . . . . ~ ~ ~ # ~ ~ = = = = = . .
+        F . . . . . . . . . . . . . . . # = = = = = = . .
+        D . . . . . . . . . . . . . . . ~ # = = = = = . .
+        G . . . . . . . . . . . . . . . ~ ~ # = = = = . .
+        S . . . . . . . . . . . . . . . . . . # = = = . .
+        U . . . . . . . . . . . . . . . . . . . # = = . .
+        V . . . . . . . . . . . . . . . . . . . . # = . .
+        O . . . . . . . . . . . . . . . . . . . . = # . .
+        M . . . . . . . . . . . . . . . . . . . . = = # .
+        m . . . . . . . . . . . . . . . . . . . . = = . #
+        """).strip().split("\n")
+    dtypes = [type(np.dtype(c)) for c in table[0][2::2]]
+
+    convert_cast = {".": Casting.unsafe, "~": Casting.same_kind,
+                    "=": Casting.safe, "#": Casting.equiv,
+                    " ": -1}
+
+    cancast = {}
+    for from_dt, row in zip(dtypes, table[1:]):
+        cancast[from_dt] = {}
+        for to_dt, c in zip(dtypes, row[2::2]):
+            cancast[from_dt][to_dt] = convert_cast[c]
+            # Of the types checked, numeric cast support same-value
+            if from_dt in same_value_dtypes and to_dt in same_value_dtypes:
+                cancast[from_dt][to_dt] |= Casting.same_value
+
+    return cancast
+
+
+CAST_TABLE = _get_cancast_table()
+
+
+class TestChanges:
+    """
+    These test cases exercise some behaviour changes
+    """
+    @pytest.mark.parametrize("string", ["S", "U"])
+    @pytest.mark.parametrize("floating", ["e", "f", "d", "g"])
+    def test_float_to_string(self, floating, string):
+        assert np.can_cast(floating, string)
+        # 100 is long enough to hold any formatted floating
+        assert np.can_cast(floating, f"{string}100")
+
+    def test_to_void(self):
+        # But in general, we do consider these safe:
+        assert np.can_cast("d", "V")
+        assert np.can_cast("S20", "V")
+
+        # Do not consider it a safe cast if the void is too smaller:
+        assert not np.can_cast("d", "V1")
+        assert not np.can_cast("S20", "V1")
+        assert not np.can_cast("U1", "V1")
+        # Structured to unstructured is just like any other:
+        assert np.can_cast("d,i", "V", casting="same_kind")
+        # Unstructured void to unstructured is actually no cast at all:
+        assert np.can_cast("V3", "V", casting="no")
+        assert np.can_cast("V0", "V", casting="no")
+
+
+class TestCasting:
+    size = 1500  # Best larger than NPY_LOWLEVEL_BUFFER_BLOCKSIZE * itemsize
+
+    def get_data(self, dtype1, dtype2):
+        if dtype2 is None or dtype1.itemsize >= dtype2.itemsize:
+            length = self.size // dtype1.itemsize
+        else:
+            length = self.size // dtype2.itemsize
+
+        # Assume that the base array is well enough aligned for all inputs.
+        arr1 = np.empty(length, dtype=dtype1)
+        assert arr1.flags.c_contiguous
+        assert arr1.flags.aligned
+
+        values = [random.randrange(-128, 128) for _ in range(length)]
+
+        for i, value in enumerate(values):
+            # Use item assignment to ensure this is not using casting:
+            if value < 0 and dtype1.kind == "u":
+                # Manually rollover unsigned integers (-1 -> int.max)
+                value = value + np.iinfo(dtype1).max + 1
+            arr1[i] = value
+
+        if dtype2 is None:
+            if dtype1.char == "?":
+                values = [bool(v) for v in values]
+            return arr1, values
+
+        if dtype2.char == "?":
+            values = [bool(v) for v in values]
+
+        arr2 = np.empty(length, dtype=dtype2)
+        assert arr2.flags.c_contiguous
+        assert arr2.flags.aligned
+
+        for i, value in enumerate(values):
+            # Use item assignment to ensure this is not using casting:
+            if value < 0 and dtype2.kind == "u":
+                # Manually rollover unsigned integers (-1 -> int.max)
+                value = value + np.iinfo(dtype2).max + 1
+            arr2[i] = value
+
+        return arr1, arr2, values
+
+    def get_data_variation(self, arr1, arr2, aligned=True, contig=True):
+        """
+        Returns a copy of arr1 that may be non-contiguous or unaligned, and a
+        matching array for arr2 (although not a copy).
+        """
+        if contig:
+            stride1 = arr1.dtype.itemsize
+            stride2 = arr2.dtype.itemsize
+        elif aligned:
+            stride1 = 2 * arr1.dtype.itemsize
+            stride2 = 2 * arr2.dtype.itemsize
+        else:
+            stride1 = arr1.dtype.itemsize + 1
+            stride2 = arr2.dtype.itemsize + 1
+
+        max_size1 = len(arr1) * 3 * arr1.dtype.itemsize + 1
+        max_size2 = len(arr2) * 3 * arr2.dtype.itemsize + 1
+        from_bytes = np.zeros(max_size1, dtype=np.uint8)
+        to_bytes = np.zeros(max_size2, dtype=np.uint8)
+
+        # Sanity check that the above is large enough:
+        assert stride1 * len(arr1) <= from_bytes.nbytes
+        assert stride2 * len(arr2) <= to_bytes.nbytes
+
+        if aligned:
+            new1 = as_strided(from_bytes[:-1].view(arr1.dtype),
+                              arr1.shape, (stride1,))
+            new2 = as_strided(to_bytes[:-1].view(arr2.dtype),
+                              arr2.shape, (stride2,))
+        else:
+            new1 = as_strided(from_bytes[1:].view(arr1.dtype),
+                              arr1.shape, (stride1,))
+            new2 = as_strided(to_bytes[1:].view(arr2.dtype),
+                              arr2.shape, (stride2,))
+
+        new1[...] = arr1
+
+        if not contig:
+            # Ensure we did not overwrite bytes that should not be written:
+            offset = arr1.dtype.itemsize if aligned else 0
+            buf = from_bytes[offset::stride1].tobytes()
+            assert buf.count(b"\0") == len(buf)
+
+        if contig:
+            assert new1.flags.c_contiguous
+            assert new2.flags.c_contiguous
+        else:
+            assert not new1.flags.c_contiguous
+            assert not new2.flags.c_contiguous
+
+        if aligned:
+            assert new1.flags.aligned
+            assert new2.flags.aligned
+        else:
+            assert not new1.flags.aligned or new1.dtype.alignment == 1
+            assert not new2.flags.aligned or new2.dtype.alignment == 1
+
+        return new1, new2
+
+    @pytest.mark.parametrize("from_Dt", simple_dtypes)
+    def test_simple_cancast(self, from_Dt):
+        for to_Dt in simple_dtypes:
+            cast = get_castingimpl(from_Dt, to_Dt)
+
+            for from_dt in [from_Dt(), from_Dt().newbyteorder()]:
+                default = cast._resolve_descriptors((from_dt, None))[1][1]
+                assert default == to_Dt()
+                del default
+
+                for to_dt in [to_Dt(), to_Dt().newbyteorder()]:
+                    casting, (from_res, to_res), view_off = (
+                            cast._resolve_descriptors((from_dt, to_dt)))
+                    assert type(from_res) == from_Dt
+                    assert type(to_res) == to_Dt
+                    if view_off is not None:
+                        # If a view is acceptable, this is "no" casting
+                        # and byte order must be matching.
+                        assert casting == Casting.no | Casting.same_value
+                        # The above table lists this as "equivalent", perhaps
+                        # with "same_value"
+                        v = CAST_TABLE[from_Dt][to_Dt] & ~Casting.same_value
+                        assert Casting.equiv == v
+                        # Note that to_res may not be the same as from_dt
+                        assert from_res.isnative == to_res.isnative
+                    else:
+                        if from_Dt == to_Dt:
+                            # Note that to_res may not be the same as from_dt
+                            assert from_res.isnative != to_res.isnative
+                        assert casting == CAST_TABLE[from_Dt][to_Dt]
+
+                    if from_Dt is to_Dt:
+                        assert from_dt is from_res
+                        assert to_dt is to_res
+
+    @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+    @pytest.mark.parametrize("from_dt", simple_dtype_instances())
+    def test_simple_direct_casts(self, from_dt):
+        """
+        This test checks numeric direct casts for dtypes supported also by the
+        struct module (plus complex).  It tries to be test a wide range of
+        inputs, but skips over possibly undefined behaviour (e.g. int rollover).
+        Longdouble and CLongdouble are tested, but only using double precision.
+
+        If this test creates issues, it should possibly just be simplified
+        or even removed (checking whether unaligned/non-contiguous casts give
+        the same results is useful, though).
+        """
+        for to_dt in simple_dtype_instances():
+            to_dt = to_dt.values[0]
+            cast = get_castingimpl(type(from_dt), type(to_dt))
+
+            # print("from_dt", from_dt, "to_dt", to_dt)
+            casting, (from_res, to_res), view_off = cast._resolve_descriptors(
+                (from_dt, to_dt))
+
+            if from_res is not from_dt or to_res is not to_dt:
+                # Do not test this case, it is handled in multiple steps,
+                # each of which should is tested individually.
+                return
+
+            safe = casting <= Casting.safe
+            del from_res, to_res, casting
+
+            arr1, arr2, values = self.get_data(from_dt, to_dt)
+
+            # print("2", arr1, arr2, cast)
+            cast._simple_strided_call((arr1, arr2))
+            # print("3")
+
+            # Check via python list
+            assert arr2.tolist() == values
+
+            # Check that the same results are achieved for strided loops
+            arr1_o, arr2_o = self.get_data_variation(arr1, arr2, True, False)
+            cast._simple_strided_call((arr1_o, arr2_o))
+
+            assert_array_equal(arr2_o, arr2)
+            assert arr2_o.tobytes() == arr2.tobytes()
+
+            # Check if alignment makes a difference, but only if supported
+            # and only if the alignment can be wrong
+            if ((from_dt.alignment == 1 and to_dt.alignment == 1) or
+                    not cast._supports_unaligned):
+                return
+
+            arr1_o, arr2_o = self.get_data_variation(arr1, arr2, False, True)
+            cast._simple_strided_call((arr1_o, arr2_o))
+
+            assert_array_equal(arr2_o, arr2)
+            assert arr2_o.tobytes() == arr2.tobytes()
+
+            arr1_o, arr2_o = self.get_data_variation(arr1, arr2, False, False)
+            cast._simple_strided_call((arr1_o, arr2_o))
+
+            assert_array_equal(arr2_o, arr2)
+            assert arr2_o.tobytes() == arr2.tobytes()
+
+            del arr1_o, arr2_o, cast
+
+    @pytest.mark.parametrize("from_Dt", simple_dtypes)
+    def test_numeric_to_times(self, from_Dt):
+        # We currently only implement contiguous loops, so only need to
+        # test those.
+        from_dt = from_Dt()
+
+        time_dtypes = [np.dtype("M8"), np.dtype("M8[ms]"), np.dtype("M8[4D]"),
+                       np.dtype("m8"), np.dtype("m8[ms]"), np.dtype("m8[4D]")]
+        for time_dt in time_dtypes:
+            cast = get_castingimpl(type(from_dt), type(time_dt))
+
+            casting, (from_res, to_res), view_off = cast._resolve_descriptors(
+                (from_dt, time_dt))
+
+            assert from_res is from_dt
+            assert to_res is time_dt
+            del from_res, to_res
+
+            assert casting & CAST_TABLE[from_Dt][type(time_dt)]
+            assert view_off is None
+
+            int64_dt = np.dtype(np.int64)
+            arr1, arr2, values = self.get_data(from_dt, int64_dt)
+            arr2 = arr2.view(time_dt)
+            arr2[...] = np.datetime64("NaT")
+
+            if time_dt == np.dtype("M8"):
+                # This is a bit of a strange path, and could probably be removed
+                arr1[-1] = 0  # ensure at least one value is not NaT
+
+                # The cast currently succeeds, but the values are invalid:
+                cast._simple_strided_call((arr1, arr2))
+                with pytest.raises(ValueError):
+                    str(arr2[-1])  # e.g. conversion to string fails
+                return
+
+            cast._simple_strided_call((arr1, arr2))
+
+            assert [int(v) for v in arr2.tolist()] == values
+
+            # Check that the same results are achieved for strided loops
+            arr1_o, arr2_o = self.get_data_variation(arr1, arr2, True, False)
+            cast._simple_strided_call((arr1_o, arr2_o))
+
+            assert_array_equal(arr2_o, arr2)
+            assert arr2_o.tobytes() == arr2.tobytes()
+
+    @pytest.mark.parametrize(
+            ["from_dt", "to_dt", "expected_casting", "expected_view_off",
+             "nom", "denom"],
+            [("M8[ns]", None, Casting.no, 0, 1, 1),
+             (str(np.dtype("M8[ns]").newbyteorder()), None,
+                  Casting.equiv, None, 1, 1),
+             ("M8", "M8[ms]", Casting.safe, 0, 1, 1),
+             # should be invalid cast:
+             ("M8[ms]", "M8", Casting.unsafe, None, 1, 1),
+             ("M8[5ms]", "M8[5ms]", Casting.no, 0, 1, 1),
+             ("M8[ns]", "M8[ms]", Casting.same_kind, None, 1, 10**6),
+             ("M8[ms]", "M8[ns]", Casting.safe, None, 10**6, 1),
+             ("M8[ms]", "M8[7ms]", Casting.same_kind, None, 1, 7),
+             ("M8[4D]", "M8[1M]", Casting.same_kind, None, None,
+                  # give full values based on NumPy 1.19.x
+                  [-2**63, 0, -1, 1314, -1315, 564442610]),
+             ("m8[ns]", None, Casting.no, 0, 1, 1),
+             (str(np.dtype("m8[ns]").newbyteorder()), None,
+                  Casting.equiv, None, 1, 1),
+             ("m8", "m8[ms]", Casting.safe, 0, 1, 1),
+             # should be invalid cast:
+             ("m8[ms]", "m8", Casting.unsafe, None, 1, 1),
+             ("m8[5ms]", "m8[5ms]", Casting.no, 0, 1, 1),
+             ("m8[ns]", "m8[ms]", Casting.same_kind, None, 1, 10**6),
+             ("m8[ms]", "m8[ns]", Casting.safe, None, 10**6, 1),
+             ("m8[ms]", "m8[7ms]", Casting.same_kind, None, 1, 7),
+             ("m8[4D]", "m8[1M]", Casting.unsafe, None, None,
+                  # give full values based on NumPy 1.19.x
+                  [-2**63, 0, 0, 1314, -1315, 564442610])])
+    def test_time_to_time(self, from_dt, to_dt,
+                          expected_casting, expected_view_off,
+                          nom, denom):
+        from_dt = np.dtype(from_dt)
+        if to_dt is not None:
+            to_dt = np.dtype(to_dt)
+
+        # Test a few values for casting (results generated with NumPy 1.19)
+        values = np.array([-2**63, 1, 2**63 - 1, 10000, -10000, 2**32])
+        values = values.astype(np.dtype("int64").newbyteorder(from_dt.byteorder))
+        assert values.dtype.byteorder == from_dt.byteorder
+        assert np.isnat(values.view(from_dt)[0])
+
+        DType = type(from_dt)
+        cast = get_castingimpl(DType, DType)
+        casting, (from_res, to_res), view_off = cast._resolve_descriptors(
+                (from_dt, to_dt))
+        assert from_res is from_dt
+        assert to_res is to_dt or to_dt is None
+        assert casting == expected_casting
+        assert view_off == expected_view_off
+
+        if nom is not None:
+            expected_out = (values * nom // denom).view(to_res)
+            expected_out[0] = "NaT"
+        else:
+            expected_out = np.empty_like(values)
+            expected_out[...] = denom
+            expected_out = expected_out.view(to_dt)
+
+        orig_arr = values.view(from_dt)
+        orig_out = np.empty_like(expected_out)
+
+        if casting == Casting.unsafe and (to_dt == "m8" or to_dt == "M8"):  # noqa: PLR1714
+            # Casting from non-generic to generic units is an error and should
+            # probably be reported as an invalid cast earlier.
+            with pytest.raises(ValueError):
+                cast._simple_strided_call((orig_arr, orig_out))
+            return
+
+        for aligned in [True, True]:
+            for contig in [True, True]:
+                arr, out = self.get_data_variation(
+                        orig_arr, orig_out, aligned, contig)
+                out[...] = 0
+                cast._simple_strided_call((arr, out))
+                assert_array_equal(out.view("int64"), expected_out.view("int64"))
+
+    def string_with_modified_length(self, dtype, change_length):
+        fact = 1 if dtype.char == "S" else 4
+        length = dtype.itemsize // fact + change_length
+        return np.dtype(f"{dtype.byteorder}{dtype.char}{length}")
+
+    @pytest.mark.parametrize("other_DT", simple_dtypes)
+    @pytest.mark.parametrize("string_char", ["S", "U"])
+    def test_string_cancast(self, other_DT, string_char):
+        fact = 1 if string_char == "S" else 4
+
+        string_DT = type(np.dtype(string_char))
+        cast = get_castingimpl(other_DT, string_DT)
+
+        other_dt = other_DT()
+        expected_length = get_expected_stringlength(other_dt)
+        string_dt = np.dtype(f"{string_char}{expected_length}")
+
+        safety, (res_other_dt, res_dt), view_off = cast._resolve_descriptors(
+                (other_dt, None))
+        assert res_dt.itemsize == expected_length * fact
+        assert safety == Casting.safe  # we consider to string casts "safe"
+        assert view_off is None
+        assert isinstance(res_dt, string_DT)
+
+        # These casts currently implement changing the string length, so
+        # check the cast-safety for too long/fixed string lengths:
+        for change_length in [-1, 0, 1]:
+            if change_length >= 0:
+                expected_safety = Casting.safe
+            else:
+                expected_safety = Casting.same_kind
+
+            to_dt = self.string_with_modified_length(string_dt, change_length)
+            safety, (_, res_dt), view_off = cast._resolve_descriptors(
+                    (other_dt, to_dt))
+            assert res_dt is to_dt
+            assert safety == expected_safety
+            assert view_off is None
+
+        # The opposite direction is always considered unsafe:
+        cast = get_castingimpl(string_DT, other_DT)
+
+        safety, _, view_off = cast._resolve_descriptors((string_dt, other_dt))
+        assert safety == Casting.unsafe
+        assert view_off is None
+
+        cast = get_castingimpl(string_DT, other_DT)
+        safety, (_, res_dt), view_off = cast._resolve_descriptors(
+            (string_dt, None))
+        assert safety == Casting.unsafe
+        assert view_off is None
+        assert other_dt is res_dt  # returns the singleton for simple dtypes
+
+    @pytest.mark.parametrize("string_char", ["S", "U"])
+    @pytest.mark.parametrize("other_dt", simple_dtype_instances())
+    def test_simple_string_casts_roundtrip(self, other_dt, string_char):
+        """
+        Tests casts from and to string by checking the roundtripping property.
+
+        The test also covers some string to string casts (but not all).
+
+        If this test creates issues, it should possibly just be simplified
+        or even removed (checking whether unaligned/non-contiguous casts give
+        the same results is useful, though).
+        """
+        string_DT = type(np.dtype(string_char))
+
+        cast = get_castingimpl(type(other_dt), string_DT)
+        cast_back = get_castingimpl(string_DT, type(other_dt))
+        _, (res_other_dt, string_dt), _ = cast._resolve_descriptors(
+                (other_dt, None))
+
+        if res_other_dt is not other_dt:
+            # do not support non-native byteorder, skip test in that case
+            assert other_dt.byteorder != res_other_dt.byteorder
+            return
+
+        orig_arr, values = self.get_data(other_dt, None)
+        str_arr = np.zeros(len(orig_arr), dtype=string_dt)
+        string_dt_short = self.string_with_modified_length(string_dt, -1)
+        str_arr_short = np.zeros(len(orig_arr), dtype=string_dt_short)
+        string_dt_long = self.string_with_modified_length(string_dt, 1)
+        str_arr_long = np.zeros(len(orig_arr), dtype=string_dt_long)
+
+        assert not cast._supports_unaligned  # if support is added, should test
+        assert not cast_back._supports_unaligned
+
+        for contig in [True, False]:
+            other_arr, str_arr = self.get_data_variation(
+                orig_arr, str_arr, True, contig)
+            _, str_arr_short = self.get_data_variation(
+                orig_arr, str_arr_short.copy(), True, contig)
+            _, str_arr_long = self.get_data_variation(
+                orig_arr, str_arr_long, True, contig)
+
+            cast._simple_strided_call((other_arr, str_arr))
+
+            cast._simple_strided_call((other_arr, str_arr_short))
+            assert_array_equal(str_arr.astype(string_dt_short), str_arr_short)
+
+            cast._simple_strided_call((other_arr, str_arr_long))
+            assert_array_equal(str_arr, str_arr_long)
+
+            if other_dt.kind == "b":
+                # Booleans do not roundtrip
+                continue
+
+            other_arr[...] = 0
+            cast_back._simple_strided_call((str_arr, other_arr))
+            assert_array_equal(orig_arr, other_arr)
+
+            other_arr[...] = 0
+            cast_back._simple_strided_call((str_arr_long, other_arr))
+            assert_array_equal(orig_arr, other_arr)
+
+    @pytest.mark.parametrize("other_dt", ["S8", "<U8", ">U8"])
+    @pytest.mark.parametrize("string_char", ["S", "U"])
+    def test_string_to_string_cancast(self, other_dt, string_char):
+        other_dt = np.dtype(other_dt)
+
+        fact = 1 if string_char == "S" else 4
+        div = 1 if other_dt.char == "S" else 4
+
+        string_DT = type(np.dtype(string_char))
+        cast = get_castingimpl(type(other_dt), string_DT)
+
+        expected_length = other_dt.itemsize // div
+        string_dt = np.dtype(f"{string_char}{expected_length}")
+
+        safety, (res_other_dt, res_dt), view_off = cast._resolve_descriptors(
+                (other_dt, None))
+        assert res_dt.itemsize == expected_length * fact
+        assert isinstance(res_dt, string_DT)
+
+        expected_view_off = None
+        if other_dt.char == string_char:
+            if other_dt.isnative:
+                expected_safety = Casting.no
+                expected_view_off = 0
+            else:
+                expected_safety = Casting.equiv
+        elif string_char == "U":
+            expected_safety = Casting.safe
+        else:
+            expected_safety = Casting.unsafe
+
+        assert view_off == expected_view_off
+        assert expected_safety == safety
+
+        for change_length in [-1, 0, 1]:
+            to_dt = self.string_with_modified_length(string_dt, change_length)
+            safety, (_, res_dt), view_off = cast._resolve_descriptors(
+                    (other_dt, to_dt))
+
+            assert res_dt is to_dt
+            if change_length <= 0:
+                assert view_off == expected_view_off
+            else:
+                assert view_off is None
+            if expected_safety == Casting.unsafe:
+                assert safety == expected_safety
+            elif change_length < 0:
+                assert safety == Casting.same_kind
+            elif change_length == 0:
+                assert safety == expected_safety
+            elif change_length > 0:
+                assert safety == Casting.safe
+
+    @pytest.mark.parametrize("order1", [">", "<"])
+    @pytest.mark.parametrize("order2", [">", "<"])
+    def test_unicode_byteswapped_cast(self, order1, order2):
+        # Very specific tests (not using the castingimpl directly)
+        # that tests unicode bytedwaps including for unaligned array data.
+        dtype1 = np.dtype(f"{order1}U30")
+        dtype2 = np.dtype(f"{order2}U30")
+        data1 = np.empty(30 * 4 + 1, dtype=np.uint8)[1:].view(dtype1)
+        data2 = np.empty(30 * 4 + 1, dtype=np.uint8)[1:].view(dtype2)
+        if dtype1.alignment != 1:
+            # alignment should always be >1, but skip the check if not
+            assert not data1.flags.aligned
+            assert not data2.flags.aligned
+
+        element = "this is a ünicode string‽"
+        data1[()] = element
+        # Test both `data1` and `data1.copy()`  (which should be aligned)
+        for data in [data1, data1.copy()]:
+            data2[...] = data1
+            assert data2[()] == element
+            assert data2.copy()[()] == element
+
+    def test_void_to_string_special_case(self):
+        # Cover a small special case in void to string casting that could
+        # probably just as well be turned into an error (compare
+        # `test_object_to_parametric_internal_error` below).
+        assert np.array([], dtype="V5").astype("S").dtype.itemsize == 5
+        assert np.array([], dtype="V5").astype("U").dtype.itemsize == 4 * 5
+
+    def test_object_to_parametric_internal_error(self):
+        # We reject casting from object to a parametric type, without
+        # figuring out the correct instance first.
+        object_dtype = type(np.dtype(object))
+        other_dtype = type(np.dtype(str))
+        cast = get_castingimpl(object_dtype, other_dtype)
+        with pytest.raises(TypeError,
+                    match="casting from object to the parametric DType"):
+            cast._resolve_descriptors((np.dtype("O"), None))
+
+    @pytest.mark.parametrize("dtype", simple_dtype_instances())
+    def test_object_and_simple_resolution(self, dtype):
+        # Simple test to exercise the cast when no instance is specified
+        object_dtype = type(np.dtype(object))
+        cast = get_castingimpl(object_dtype, type(dtype))
+
+        safety, (_, res_dt), view_off = cast._resolve_descriptors(
+                (np.dtype("O"), dtype))
+        assert safety == Casting.unsafe
+        assert view_off is None
+        assert res_dt is dtype
+
+        safety, (_, res_dt), view_off = cast._resolve_descriptors(
+                (np.dtype("O"), None))
+        assert safety == Casting.unsafe
+        assert view_off is None
+        assert res_dt == dtype.newbyteorder("=")
+
+    @pytest.mark.parametrize("dtype", simple_dtype_instances())
+    def test_simple_to_object_resolution(self, dtype):
+        # Simple test to exercise the cast when no instance is specified
+        object_dtype = type(np.dtype(object))
+        cast = get_castingimpl(type(dtype), object_dtype)
+
+        safety, (_, res_dt), view_off = cast._resolve_descriptors(
+                (dtype, None))
+        assert safety == Casting.safe
+        assert view_off is None
+        assert res_dt is np.dtype("O")
+
+    @pytest.mark.parametrize("casting", ["no", "unsafe"])
+    def test_void_and_structured_with_subarray(self, casting):
+        # test case corresponding to gh-19325
+        dtype = np.dtype([("foo", "<f4", (3, 2))])
+        expected = casting == "unsafe"
+        assert np.can_cast("V4", dtype, casting=casting) == expected
+        assert np.can_cast(dtype, "V4", casting=casting) == expected
+
+    @pytest.mark.parametrize(["to_dt", "expected_off"],
+            [  # Same as `from_dt` but with both fields shifted:
+             (np.dtype({"names": ["a", "b"], "formats": ["i4", "f4"],
+                        "offsets": [0, 4]}), 2),
+             # Additional change of the names
+             (np.dtype({"names": ["b", "a"], "formats": ["i4", "f4"],
+                        "offsets": [0, 4]}), 2),
+             # Incompatible field offset change
+             (np.dtype({"names": ["b", "a"], "formats": ["i4", "f4"],
+                        "offsets": [0, 6]}), None)])
+    def test_structured_field_offsets(self, to_dt, expected_off):
+        # This checks the cast-safety and view offset for swapped and "shifted"
+        # fields which are viewable
+        from_dt = np.dtype({"names": ["a", "b"],
+                            "formats": ["i4", "f4"],
+                            "offsets": [2, 6]})
+        cast = get_castingimpl(type(from_dt), type(to_dt))
+        safety, _, view_off = cast._resolve_descriptors((from_dt, to_dt))
+        if from_dt.names == to_dt.names:
+            assert safety == Casting.equiv
+        else:
+            assert safety == Casting.safe
+        # Shifting the original data pointer by -2 will align both by
+        # effectively adding 2 bytes of spacing before `from_dt`.
+        assert view_off == expected_off
+
+    @pytest.mark.parametrize(("from_dt", "to_dt", "expected_off"), [
+            # Subarray cases:
+            ("i", "(1,1)i", 0),
+            ("(1,1)i", "i", 0),
+            ("(2,1)i", "(2,1)i", 0),
+            # field cases (field to field is tested explicitly also):
+            # Not considered viewable, because a negative offset would allow
+            # may structured dtype to indirectly access invalid memory.
+            ("i", {"names": ["a"], "formats": ["i"], "offsets": [2]}, None),
+            ({"names": ["a"], "formats": ["i"], "offsets": [2]}, "i", 2),
+            # Currently considered not viewable, due to multiple fields
+            # even though they overlap (maybe we should not allow that?)
+            ("i", {"names": ["a", "b"], "formats": ["i", "i"], "offsets": [2, 2]},
+             None),
+            # different number of fields can't work, should probably just fail
+            # so it never reports "viewable":
+            ("i,i", "i,i,i", None),
+            # Unstructured void cases:
+            ("i4", "V3", 0),  # void smaller or equal
+            ("i4", "V4", 0),  # void smaller or equal
+            ("i4", "V10", None),  # void is larger (no view)
+            ("O", "V4", None),  # currently reject objects for view here.
+            ("O", "V8", None),  # currently reject objects for view here.
+            ("V4", "V3", 0),
+            ("V4", "V4", 0),
+            ("V3", "V4", None),
+            # Note that currently void-to-other cast goes via byte-strings
+            # and is not a "view" based cast like the opposite direction:
+            ("V4", "i4", None),
+            # completely invalid/impossible cast:
+            ("i,i", "i,i,i", None),
+        ])
+    def test_structured_view_offsets_parametric(
+            self, from_dt, to_dt, expected_off):
+        # TODO: While this test is fairly thorough, right now, it does not
+        # really test some paths that may have nonzero offsets (they don't
+        # really exists).
+        from_dt = np.dtype(from_dt)
+        to_dt = np.dtype(to_dt)
+        cast = get_castingimpl(type(from_dt), type(to_dt))
+        _, _, view_off = cast._resolve_descriptors((from_dt, to_dt))
+        assert view_off == expected_off
+
+    @pytest.mark.parametrize("dtype", np.typecodes["All"])
+    def test_object_casts_NULL_None_equivalence(self, dtype):
+        # None to <other> casts may succeed or fail, but a NULL'ed array must
+        # behave the same as one filled with None's.
+        arr_normal = np.array([None] * 5)
+        arr_NULLs = np.empty_like(arr_normal)
+        ctypes.memset(arr_NULLs.ctypes.data, 0, arr_NULLs.nbytes)
+        # If the check fails (maybe it should) the test would lose its purpose:
+        assert arr_NULLs.tobytes() == b"\x00" * arr_NULLs.nbytes
+
+        try:
+            expected = arr_normal.astype(dtype)
+        except TypeError:
+            with pytest.raises(TypeError):
+                arr_NULLs.astype(dtype)
+        else:
+            assert_array_equal(expected, arr_NULLs.astype(dtype))
+
+    @pytest.mark.parametrize("dtype",
+            np.typecodes["AllInteger"] + np.typecodes["AllFloat"])
+    def test_nonstandard_bool_to_other(self, dtype):
+        # simple test for casting bool_ to numeric types, which should not
+        # expose the detail that NumPy bools can sometimes take values other
+        # than 0 and 1.  See also gh-19514.
+        nonstandard_bools = np.array([0, 3, -7], dtype=np.int8).view(bool)
+        res = nonstandard_bools.astype(dtype)
+        expected = [0, 1, 1]
+        assert_array_equal(res, expected)
+
+    @pytest.mark.parametrize("to_dtype",
+            np.typecodes["AllInteger"] + np.typecodes["AllFloat"])
+    @pytest.mark.parametrize("from_dtype",
+            np.typecodes["AllInteger"] + np.typecodes["AllFloat"])
+    @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+    def test_same_value_overflow(self, from_dtype, to_dtype):
+        if from_dtype == to_dtype:
+            return
+        top1 = 0
+        top2 = 0
+        try:
+            top1 = np.iinfo(from_dtype).max
+        except ValueError:
+            top1 = np.finfo(from_dtype).max
+        try:
+            top2 = np.iinfo(to_dtype).max
+        except ValueError:
+            top2 = np.finfo(to_dtype).max
+        # No need to test if top2 > top1, since the test will also do the
+        # reverse dtype matching. Catch then warning if the comparison warns,
+        # i.e. np.int16(65535) < np.float16(6.55e4)
+        with warnings.catch_warnings(record=True):
+            warnings.simplefilter("always", RuntimeWarning)
+            if top2 >= top1:
+                # will be tested when the dtypes are reversed
+                return
+        # Happy path
+        arr1 = np.array([0] * 10, dtype=from_dtype)
+        arr2 = np.array([0] * 10, dtype=to_dtype)
+        arr1_astype = arr1.astype(to_dtype, casting='same_value')
+        assert_equal(arr1_astype, arr2, strict=True)
+        # Make it overflow, both aligned and unaligned
+        arr1[0] = top1
+        aligned = np.empty(arr1.itemsize * arr1.size + 1, 'uint8')
+        unaligned = aligned[1:].view(arr1.dtype)
+        unaligned[:] = arr1
+        with pytest.raises(ValueError):
+            # Casting float to float with overflow should raise
+            # RuntimeWarning (fperror)
+            # Casting float to int with overflow sometimes raises
+            # RuntimeWarning (fperror)
+            # Casting with overflow  and 'same_value', should raise ValueError
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter("always", RuntimeWarning)
+                arr1.astype(to_dtype, casting='same_value')
+            assert len(w) < 2
+        with pytest.raises(ValueError):
+            # again, unaligned
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter("always", RuntimeWarning)
+                unaligned.astype(to_dtype, casting='same_value')
+            assert len(w) < 2
+
+    @pytest.mark.parametrize("to_dtype",
+            np.typecodes["AllInteger"])
+    @pytest.mark.parametrize("from_dtype",
+            np.typecodes["AllFloat"])
+    @pytest.mark.filterwarnings("ignore::RuntimeWarning")
+    def test_same_value_float_to_int(self, from_dtype, to_dtype):
+        # Should not raise, since the values can round trip
+        arr1 = np.arange(10, dtype=from_dtype)
+        aligned = np.empty(arr1.itemsize * arr1.size + 1, 'uint8')
+        unaligned = aligned[1:].view(arr1.dtype)
+        unaligned[:] = arr1
+        arr2 = np.arange(10, dtype=to_dtype)
+        assert_array_equal(arr1.astype(to_dtype, casting='same_value'), arr2)
+        assert_array_equal(unaligned.astype(to_dtype, casting='same_value'), arr2)
+
+        # Should raise, since values cannot round trip. Might warn too about
+        # FPE errors
+        arr1_66 = arr1 + 0.666
+        unaligned_66 = unaligned + 0.66
+        with pytest.raises(ValueError):
+            arr1_66.astype(to_dtype, casting='same_value')
+        with pytest.raises(ValueError):
+            unaligned_66.astype(to_dtype, casting='same_value')
+
+    @pytest.mark.parametrize("to_dtype",
+            np.typecodes["AllInteger"])
+    @pytest.mark.parametrize("from_dtype",
+            np.typecodes["AllFloat"])
+    @pytest.mark.filterwarnings("ignore::RuntimeWarning")
+    def test_same_value_float_to_int_scalar(self, from_dtype, to_dtype):
+        # Should not raise, since the values can round trip
+        s1 = np.array(10, dtype=from_dtype)
+        assert s1.astype(to_dtype, casting='same_value') == 10
+
+        # Should raise, since values cannot round trip
+        s1_66 = s1 + 0.666
+        with pytest.raises(ValueError):
+            s1_66.astype(to_dtype, casting='same_value')
+
+    @pytest.mark.parametrize("value", [np.nan, np.inf, -np.inf])
+    @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+    @pytest.mark.filterwarnings("ignore::RuntimeWarning")
+    def test_same_value_naninf(self, value):
+        # These work, but may trigger FPE warnings on macOS
+        np.array([value], dtype=np.half).astype(np.cdouble, casting='same_value')
+        np.array([value], dtype=np.half).astype(np.double, casting='same_value')
+        np.array([value], dtype=np.float32).astype(np.cdouble, casting='same_value')
+        np.array([value], dtype=np.float32).astype(np.double, casting='same_value')
+        np.array([value], dtype=np.float32).astype(np.half, casting='same_value')
+        np.array([value], dtype=np.complex64).astype(np.half, casting='same_value')
+        # These fail
+        with pytest.raises(ValueError):
+            np.array([value], dtype=np.half).astype(np.int64, casting='same_value')
+        with pytest.raises(ValueError):
+            np.array([value], dtype=np.complex64).astype(np.int64, casting='same_value')
+        with pytest.raises(ValueError):
+            np.array([value], dtype=np.float32).astype(np.int64, casting='same_value')
+
+    @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+    def test_same_value_complex(self):
+        arr = np.array([complex(1, 1)], dtype=np.cdouble)
+        # This works
+        arr.astype(np.complex64, casting='same_value')
+        # Casting with a non-zero imag part fails
+        with pytest.raises(ValueError):
+            arr.astype(np.float32, casting='same_value')
+
+    def test_same_value_scalar(self):
+        i = np.array(123, dtype=np.int64)
+        f = np.array(123, dtype=np.float64)
+        assert i.astype(np.float64, casting='same_value') == f
+        assert f.astype(np.int64, casting='same_value') == f
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_conversion_utils.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_conversion_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..a1e61f105da632e1d6697efbe70ff96ebd08486f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_conversion_utils.py
@@ -0,0 +1,209 @@
+"""
+Tests for numpy/_core/src/multiarray/conversion_utils.c
+"""
+import re
+
+import pytest
+
+import numpy._core._multiarray_tests as mt
+from numpy._core.multiarray import CLIP, RAISE, WRAP
+from numpy.testing import assert_raises
+
+
+class StringConverterTestCase:
+    allow_bytes = True
+    case_insensitive = True
+    exact_match = False
+    warn = True
+
+    def _check_value_error(self, val):
+        pattern = fr'\(got {re.escape(repr(val))}\)'
+        with pytest.raises(ValueError, match=pattern) as exc:
+            self.conv(val)
+
+    def _check_conv_assert_warn(self, val, expected):
+        if self.warn:
+            with assert_raises(ValueError) as exc:
+                assert self.conv(val) == expected
+        else:
+            assert self.conv(val) == expected
+
+    def _check(self, val, expected):
+        """Takes valid non-deprecated inputs for converters,
+        runs converters on inputs, checks correctness of outputs,
+        warnings and errors"""
+        assert self.conv(val) == expected
+
+        if self.allow_bytes:
+            assert self.conv(val.encode('ascii')) == expected
+        else:
+            with pytest.raises(TypeError):
+                self.conv(val.encode('ascii'))
+
+        if len(val) != 1:
+            if self.exact_match:
+                self._check_value_error(val[:1])
+                self._check_value_error(val + '\0')
+            else:
+                self._check_conv_assert_warn(val[:1], expected)
+
+        if self.case_insensitive:
+            if val != val.lower():
+                self._check_conv_assert_warn(val.lower(), expected)
+            if val != val.upper():
+                self._check_conv_assert_warn(val.upper(), expected)
+        else:
+            if val != val.lower():
+                self._check_value_error(val.lower())
+            if val != val.upper():
+                self._check_value_error(val.upper())
+
+    def test_wrong_type(self):
+        # common cases which apply to all the below
+        with pytest.raises(TypeError):
+            self.conv({})
+        with pytest.raises(TypeError):
+            self.conv([])
+
+    def test_wrong_value(self):
+        # nonsense strings
+        self._check_value_error('')
+        self._check_value_error('\N{greek small letter pi}')
+
+        if self.allow_bytes:
+            self._check_value_error(b'')
+            # bytes which can't be converted to strings via utf8
+            self._check_value_error(b"\xFF")
+        if self.exact_match:
+            self._check_value_error("there's no way this is supported")
+
+
+class TestByteorderConverter(StringConverterTestCase):
+    """ Tests of PyArray_ByteorderConverter """
+    conv = mt.run_byteorder_converter
+    warn = False
+
+    def test_valid(self):
+        for s in ['big', '>']:
+            self._check(s, 'NPY_BIG')
+        for s in ['little', '<']:
+            self._check(s, 'NPY_LITTLE')
+        for s in ['native', '=']:
+            self._check(s, 'NPY_NATIVE')
+        for s in ['ignore', '|']:
+            self._check(s, 'NPY_IGNORE')
+        for s in ['swap']:
+            self._check(s, 'NPY_SWAP')
+
+
+class TestSortkindConverter(StringConverterTestCase):
+    """ Tests of PyArray_SortkindConverter """
+    conv = mt.run_sortkind_converter
+    warn = False
+
+    def test_valid(self):
+        self._check('quicksort', 'NPY_QUICKSORT')
+        self._check('heapsort', 'NPY_HEAPSORT')
+        self._check('mergesort', 'NPY_STABLESORT')  # alias
+        self._check('stable', 'NPY_STABLESORT')
+
+
+class TestSelectkindConverter(StringConverterTestCase):
+    """ Tests of PyArray_SelectkindConverter """
+    conv = mt.run_selectkind_converter
+    case_insensitive = False
+    exact_match = True
+
+    def test_valid(self):
+        self._check('introselect', 'NPY_INTROSELECT')
+
+
+class TestSearchsideConverter(StringConverterTestCase):
+    """ Tests of PyArray_SearchsideConverter """
+    conv = mt.run_searchside_converter
+
+    def test_valid(self):
+        self._check('left', 'NPY_SEARCHLEFT')
+        self._check('right', 'NPY_SEARCHRIGHT')
+
+
+class TestOrderConverter(StringConverterTestCase):
+    """ Tests of PyArray_OrderConverter """
+    conv = mt.run_order_converter
+    warn = False
+
+    def test_valid(self):
+        self._check('c', 'NPY_CORDER')
+        self._check('f', 'NPY_FORTRANORDER')
+        self._check('a', 'NPY_ANYORDER')
+        self._check('k', 'NPY_KEEPORDER')
+
+    def test_flatten_invalid_order(self):
+        # invalid after gh-14596
+        with pytest.raises(ValueError):
+            self.conv('Z')
+        for order in [False, True, 0, 8]:
+            with pytest.raises(TypeError):
+                self.conv(order)
+
+
+class TestClipmodeConverter(StringConverterTestCase):
+    """ Tests of PyArray_ClipmodeConverter """
+    conv = mt.run_clipmode_converter
+
+    def test_valid(self):
+        self._check('clip', 'NPY_CLIP')
+        self._check('wrap', 'NPY_WRAP')
+        self._check('raise', 'NPY_RAISE')
+
+        # integer values allowed here
+        assert self.conv(CLIP) == 'NPY_CLIP'
+        assert self.conv(WRAP) == 'NPY_WRAP'
+        assert self.conv(RAISE) == 'NPY_RAISE'
+
+
+class TestCastingConverter(StringConverterTestCase):
+    """ Tests of PyArray_CastingConverter """
+    conv = mt.run_casting_converter
+    case_insensitive = False
+    exact_match = True
+
+    def test_valid(self):
+        self._check("no", "NPY_NO_CASTING")
+        self._check("equiv", "NPY_EQUIV_CASTING")
+        self._check("safe", "NPY_SAFE_CASTING")
+        self._check("unsafe", "NPY_UNSAFE_CASTING")
+        self._check("same_kind", "NPY_SAME_KIND_CASTING")
+
+    def test_invalid(self):
+        # Currently, 'same_value' is supported only in ndarray.astype
+        self._check_value_error("same_value")
+
+class TestIntpConverter:
+    """ Tests of PyArray_IntpConverter """
+    conv = mt.run_intp_converter
+
+    def test_basic(self):
+        assert self.conv(1) == (1,)
+        assert self.conv((1, 2)) == (1, 2)
+        assert self.conv([1, 2]) == (1, 2)
+        assert self.conv(()) == ()
+
+    def test_none(self):
+        with pytest.raises(TypeError):
+            assert self.conv(None) == ()
+
+    def test_float(self):
+        with pytest.raises(TypeError):
+            self.conv(1.0)
+        with pytest.raises(TypeError):
+            self.conv([1, 1.0])
+
+    def test_too_large(self):
+        with pytest.raises(ValueError):
+            self.conv(2**64)
+
+    def test_too_many_dims(self):
+        assert self.conv([1] * 64) == (1,) * 64
+        with pytest.raises(ValueError):
+            self.conv([1] * 65)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cpu_dispatcher.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cpu_dispatcher.py
new file mode 100644
index 0000000000000000000000000000000000000000..ce96d450b4b332301758d54b57753965248f74a6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cpu_dispatcher.py
@@ -0,0 +1,48 @@
+from numpy._core import _umath_tests
+from numpy._core._multiarray_umath import (
+    __cpu_baseline__,
+    __cpu_dispatch__,
+    __cpu_features__,
+)
+from numpy.testing import assert_equal
+
+
+def test_dispatcher():
+    """
+    Testing the utilities of the CPU dispatcher
+    """
+    targets = (
+        "X86_V2", "X86_V3",
+        "VSX", "VSX2", "VSX3",
+        "NEON", "ASIMD", "ASIMDHP",
+        "VX", "VXE", "LSX", "RVV"
+    )
+    highest_sfx = ""  # no suffix for the baseline
+    all_sfx = []
+    for feature in reversed(targets):
+        # skip baseline features, by the default `CCompilerOpt` do not generate separated objects
+        # for the baseline,  just one object combined all of them via 'baseline' option
+        # within the configuration statements.
+        if feature in __cpu_baseline__:
+            continue
+        # check compiler and running machine support
+        if feature not in __cpu_dispatch__ or not __cpu_features__[feature]:
+            continue
+
+        if not highest_sfx:
+            highest_sfx = "_" + feature
+        all_sfx.append("func" + "_" + feature)
+
+    test = _umath_tests.test_dispatch()
+    assert_equal(test["func"], "func" + highest_sfx)
+    assert_equal(test["var"], "var" + highest_sfx)
+
+    if highest_sfx:
+        assert_equal(test["func_xb"], "func" + highest_sfx)
+        assert_equal(test["var_xb"], "var" + highest_sfx)
+    else:
+        assert_equal(test["func_xb"], "nobase")
+        assert_equal(test["var_xb"], "nobase")
+
+    all_sfx.append("func")  # add the baseline
+    assert_equal(test["all"], all_sfx)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cpu_features.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cpu_features.py
new file mode 100644
index 0000000000000000000000000000000000000000..8222d8b88a262b2d636515aff2d51bcfcb465869
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cpu_features.py
@@ -0,0 +1,482 @@
+import os
+import pathlib
+import platform
+import re
+import subprocess
+import sys
+
+import pytest
+
+from numpy._core._multiarray_umath import (
+    __cpu_baseline__,
+    __cpu_dispatch__,
+    __cpu_features__,
+)
+
+
+def assert_features_equal(actual, desired, fname):
+    __tracebackhide__ = True  # Hide traceback for py.test
+    actual, desired = str(actual), str(desired)
+    if actual == desired:
+        return
+    detected = str(__cpu_features__).replace("'", "")
+    try:
+        with open("/proc/cpuinfo") as fd:
+            cpuinfo = fd.read(2048)
+    except Exception as err:
+        cpuinfo = str(err)
+
+    try:
+        import subprocess
+        auxv = subprocess.check_output(['/bin/true'], env={"LD_SHOW_AUXV": "1"})
+        auxv = auxv.decode()
+    except Exception as err:
+        auxv = str(err)
+
+    import textwrap
+    error_report = textwrap.indent(
+f"""
+###########################################
+### Extra debugging information
+###########################################
+-------------------------------------------
+--- NumPy Detections
+-------------------------------------------
+{detected}
+-------------------------------------------
+--- SYS / CPUINFO
+-------------------------------------------
+{cpuinfo}....
+-------------------------------------------
+--- SYS / AUXV
+-------------------------------------------
+{auxv}
+""", prefix='\r')
+
+    raise AssertionError((
+        "Failure Detection\n"
+        " NAME: '%s'\n"
+        " ACTUAL: %s\n"
+        " DESIRED: %s\n"
+        "%s"
+    ) % (fname, actual, desired, error_report))
+
+def _text_to_list(txt):
+    out = txt.strip("][\n").replace("'", "").split(', ')
+    return None if out[0] == "" else out
+
+class AbstractTest:
+    features = []
+    features_groups = {}
+    features_map = {}
+    features_flags = set()
+
+    def load_flags(self):
+        # a hook
+        pass
+
+    def test_features(self):
+        self.load_flags()
+        for gname, features in self.features_groups.items():
+            test_features = [self.cpu_have(f) for f in features]
+            assert_features_equal(__cpu_features__.get(gname), all(test_features), gname)
+
+        for feature_name in self.features:
+            cpu_have = self.cpu_have(feature_name)
+            npy_have = __cpu_features__.get(feature_name)
+            assert_features_equal(npy_have, cpu_have, feature_name)
+
+    def cpu_have(self, feature_name):
+        map_names = self.features_map.get(feature_name, feature_name)
+        if isinstance(map_names, str):
+            return map_names in self.features_flags
+        return any(f in self.features_flags for f in map_names)
+
+    def load_flags_cpuinfo(self, magic_key):
+        self.features_flags = self.get_cpuinfo_item(magic_key)
+
+    def get_cpuinfo_item(self, magic_key):
+        values = set()
+        with open('/proc/cpuinfo') as fd:
+            for line in fd:
+                if not line.startswith(magic_key):
+                    continue
+                flags_value = [s.strip() for s in line.split(':', 1)]
+                if len(flags_value) == 2:
+                    values = values.union(flags_value[1].upper().split())
+        return values
+
+    def load_flags_auxv(self):
+        auxv = subprocess.check_output(['/bin/true'], env={"LD_SHOW_AUXV": "1"})
+        for at in auxv.split(b'\n'):
+            if not at.startswith(b"AT_HWCAP"):
+                continue
+            hwcap_value = [s.strip() for s in at.split(b':', 1)]
+            if len(hwcap_value) == 2:
+                self.features_flags = self.features_flags.union(
+                    hwcap_value[1].upper().decode().split()
+                )
+
+@pytest.mark.skipif(
+    sys.platform == 'emscripten',
+    reason=(
+        "The subprocess module is not available on WASM platforms and"
+        " therefore this test class cannot be properly executed."
+    ),
+)
+@pytest.mark.thread_unsafe(reason="setup & tmp_path_factory threads-unsafe, modifies environment variables")
+class TestEnvPrivation:
+    cwd = pathlib.Path(__file__).parent.resolve()
+    env = os.environ.copy()
+    _enable = os.environ.pop('NPY_ENABLE_CPU_FEATURES', None)
+    _disable = os.environ.pop('NPY_DISABLE_CPU_FEATURES', None)
+    SUBPROCESS_ARGS = {"cwd": cwd, "capture_output": True, "text": True, "check": True}
+    unavailable_feats = [
+        feat for feat in __cpu_dispatch__ if not __cpu_features__[feat]
+    ]
+    UNAVAILABLE_FEAT = (
+        None if len(unavailable_feats) == 0
+        else unavailable_feats[0]
+    )
+    BASELINE_FEAT = None if len(__cpu_baseline__) == 0 else __cpu_baseline__[0]
+    SCRIPT = """
+def main():
+    from numpy._core._multiarray_umath import (
+        __cpu_features__,
+        __cpu_dispatch__
+    )
+
+    detected = [feat for feat in __cpu_dispatch__ if __cpu_features__[feat]]
+    print(detected)
+
+if __name__ == "__main__":
+    main()
+    """
+
+    @pytest.fixture(autouse=True)
+    def setup_class(self, tmp_path_factory):
+        file = tmp_path_factory.mktemp("runtime_test_script")
+        file /= "_runtime_detect.py"
+        file.write_text(self.SCRIPT)
+        self.file = file
+
+    def _run(self):
+        return subprocess.run(
+            [sys.executable, self.file],
+            env=self.env,
+            **self.SUBPROCESS_ARGS,
+            )
+
+    # Helper function mimicking pytest.raises for subprocess call
+    def _expect_error(
+        self,
+        msg,
+        err_type,
+        no_error_msg="Failed to generate error"
+    ):
+        try:
+            self._run()
+        except subprocess.CalledProcessError as e:
+            assertion_message = f"Expected: {msg}\nGot: {e.stderr}"
+            assert re.search(msg, e.stderr), assertion_message
+
+            assertion_message = (
+                f"Expected error of type: {err_type}; see full "
+                f"error:\n{e.stderr}"
+            )
+            assert re.search(err_type, e.stderr), assertion_message
+        else:
+            assert False, no_error_msg
+
+    def setup_method(self):
+        """Ensure that the environment is reset"""
+        self.env = os.environ.copy()
+
+    def test_runtime_feature_selection(self):
+        """
+        Ensure that when selecting `NPY_ENABLE_CPU_FEATURES`, only the
+        features exactly specified are dispatched.
+        """
+
+        # Capture runtime-enabled features
+        out = self._run()
+        non_baseline_features = _text_to_list(out.stdout)
+
+        if non_baseline_features is None:
+            pytest.skip(
+                "No dispatchable features outside of baseline detected."
+            )
+        feature = non_baseline_features[0]
+
+        # Capture runtime-enabled features when `NPY_ENABLE_CPU_FEATURES` is
+        # specified
+        self.env['NPY_ENABLE_CPU_FEATURES'] = feature
+        out = self._run()
+        enabled_features = _text_to_list(out.stdout)
+
+        # Ensure that only one feature is enabled, and it is exactly the one
+        # specified by `NPY_ENABLE_CPU_FEATURES`
+        assert set(enabled_features) == {feature}
+
+        if len(non_baseline_features) < 2:
+            pytest.skip("Only one non-baseline feature detected.")
+        # Capture runtime-enabled features when `NPY_ENABLE_CPU_FEATURES` is
+        # specified
+        self.env['NPY_ENABLE_CPU_FEATURES'] = ",".join(non_baseline_features)
+        out = self._run()
+        enabled_features = _text_to_list(out.stdout)
+
+        # Ensure that both features are enabled, and they are exactly the ones
+        # specified by `NPY_ENABLE_CPU_FEATURES`
+        assert set(enabled_features) == set(non_baseline_features)
+
+    @pytest.mark.parametrize("enabled, disabled",
+    [
+        ("feature", "feature"),
+        ("feature", "same"),
+    ])
+    def test_both_enable_disable_set(self, enabled, disabled):
+        """
+        Ensure that when both environment variables are set then an
+        ImportError is thrown
+        """
+        self.env['NPY_ENABLE_CPU_FEATURES'] = enabled
+        self.env['NPY_DISABLE_CPU_FEATURES'] = disabled
+        msg = "Both NPY_DISABLE_CPU_FEATURES and NPY_ENABLE_CPU_FEATURES"
+        err_type = "ImportError"
+        self._expect_error(msg, err_type)
+
+    @pytest.mark.skipif(
+        not __cpu_dispatch__,
+        reason=(
+            "NPY_*_CPU_FEATURES only parsed if "
+            "`__cpu_dispatch__` is non-empty"
+        )
+    )
+    @pytest.mark.parametrize("action", ["ENABLE", "DISABLE"])
+    def test_variable_too_long(self, action):
+        """
+        Test that an error is thrown if the environment variables are too long
+        to be processed. Current limit is 1024, but this may change later.
+        """
+        MAX_VAR_LENGTH = 1024
+        # Actual length is MAX_VAR_LENGTH + 1 due to null-termination
+        self.env[f'NPY_{action}_CPU_FEATURES'] = "t" * MAX_VAR_LENGTH
+        msg = (
+            f"Length of environment variable 'NPY_{action}_CPU_FEATURES' is "
+            f"{MAX_VAR_LENGTH + 1}, only {MAX_VAR_LENGTH} accepted"
+        )
+        err_type = "RuntimeError"
+        self._expect_error(msg, err_type)
+
+    @pytest.mark.skipif(
+        not __cpu_dispatch__,
+        reason=(
+            "NPY_*_CPU_FEATURES only parsed if "
+            "`__cpu_dispatch__` is non-empty"
+        )
+    )
+    def test_impossible_feature_disable(self):
+        """
+        Test that a RuntimeError is thrown if an impossible feature-disabling
+        request is made. This includes disabling a baseline feature.
+        """
+
+        if self.BASELINE_FEAT is None:
+            pytest.skip("There are no unavailable features to test with")
+        bad_feature = self.BASELINE_FEAT
+        self.env['NPY_DISABLE_CPU_FEATURES'] = bad_feature
+        msg = (
+            f"You cannot disable CPU feature '{bad_feature}', since it is "
+            "part of the baseline optimizations"
+        )
+        err_type = "RuntimeError"
+        self._expect_error(msg, err_type)
+
+    def test_impossible_feature_enable(self):
+        """
+        Test that a RuntimeError is thrown if an impossible feature-enabling
+        request is made. This includes enabling a feature not supported by the
+        machine, or disabling a baseline optimization.
+        """
+
+        if self.UNAVAILABLE_FEAT is None:
+            pytest.skip("There are no unavailable features to test with")
+        bad_feature = self.UNAVAILABLE_FEAT
+        self.env['NPY_ENABLE_CPU_FEATURES'] = bad_feature
+        msg = (
+            f"You cannot enable CPU features \\({bad_feature}\\), since "
+            "they are not supported by your machine."
+        )
+        err_type = "RuntimeError"
+        self._expect_error(msg, err_type)
+
+        # Ensure that it fails even when providing garbage in addition
+        feats = f"{bad_feature}, Foobar"
+        self.env['NPY_ENABLE_CPU_FEATURES'] = feats
+        msg = (
+            f"You cannot enable CPU features \\({bad_feature}\\), since they "
+            "are not supported by your machine."
+        )
+        self._expect_error(msg, err_type)
+
+        if self.BASELINE_FEAT is not None:
+            # Ensure that only the bad feature gets reported
+            feats = f"{bad_feature}, {self.BASELINE_FEAT}"
+            self.env['NPY_ENABLE_CPU_FEATURES'] = feats
+            msg = (
+                f"You cannot enable CPU features \\({bad_feature}\\), since "
+                "they are not supported by your machine."
+            )
+            self._expect_error(msg, err_type)
+
+
+is_linux = sys.platform.startswith('linux')
+is_cygwin = sys.platform.startswith('cygwin')
+machine = platform.machine()
+is_x86 = re.match(r"^(amd64|x86|i386|i686)", machine, re.IGNORECASE)
+@pytest.mark.skipif(
+    not (is_linux or is_cygwin) or not is_x86, reason="Only for Linux and x86"
+)
+class Test_X86_Features(AbstractTest):
+    features = []
+
+    features_groups = {
+        "X86_V2": [
+            "SSE", "SSE2", "SSE3", "SSSE3", "SSE41", "SSE42",
+            "POPCNT", "LAHF", "CX16"
+        ],
+    }
+    features_groups["X86_V3"] = features_groups["X86_V2"] + [
+        "AVX", "AVX2", "FMA3", "BMI", "BMI2",
+        "LZCNT", "F16C", "MOVBE"
+    ]
+    features_groups["X86_V4"] = features_groups["X86_V3"] + [
+        "AVX512F", "AVX512CD", "AVX512BW", "AVX512DQ", "AVX512VL"
+    ]
+    features_groups["AVX512_ICL"] = features_groups["X86_V4"] + [
+        "AVX512IFMA", "AVX512VBMI", "AVX512VNNI",
+        "AVX512VBMI2", "AVX512BITALG", "AVX512VPOPCNTDQ",
+        "VAES", "VPCLMULQDQ", "GFNI"
+    ]
+    features_groups["AVX512_SPR"] = features_groups["AVX512_ICL"] + ["AVX512FP16", "AVX512BF16"]
+
+    features_map = {
+        "SSE3": "PNI", "SSE41": "SSE4_1", "SSE42": "SSE4_2", "FMA3": "FMA",
+        "BMI": "BMI1", "LZCNT": "ABM", "LAHF": "LAHF_LM",
+        "AVX512VNNI": "AVX512_VNNI", "AVX512BITALG": "AVX512_BITALG",
+        "AVX512VBMI2": "AVX512_VBMI2", "AVX5124FMAPS": "AVX512_4FMAPS",
+        "AVX5124VNNIW": "AVX512_4VNNIW", "AVX512VPOPCNTDQ": "AVX512_VPOPCNTDQ",
+        "AVX512FP16": "AVX512_FP16", "AVX512BF16": "AVX512_BF16"
+    }
+
+    def load_flags(self):
+        self.load_flags_cpuinfo("flags")
+
+
+is_power = re.match(r"^(powerpc|ppc)64", machine, re.IGNORECASE)
+@pytest.mark.skipif(not is_linux or not is_power, reason="Only for Linux and Power")
+class Test_POWER_Features(AbstractTest):
+    features = ["VSX", "VSX2", "VSX3", "VSX4"]
+    features_map = {
+        "VSX":  "ARCH_2_06",
+        "VSX2": "ARCH_2_07",
+        "VSX3": "ARCH_3_00",
+        "VSX4": "ARCH_3_1B"
+    }
+
+    def load_flags(self):
+        self.load_flags_auxv()
+        platform = self._get_platform()
+
+        if platform:
+            power_match = re.search(r'power(\d+)', platform, re.IGNORECASE)
+            if power_match:
+                power_gen = int(power_match.group(1))
+                if power_gen >= 7:
+                    self.features_flags.add("ARCH_2_06")
+                if power_gen >= 8:
+                    self.features_flags.add("ARCH_2_07")
+                if power_gen >= 9:
+                    self.features_flags.add("ARCH_3_00")
+                if power_gen >= 10:
+                    self.features_flags.add("ARCH_3_1B")
+
+    def _get_platform(self):
+        """Get the AT_PLATFORM value from AUXV"""
+        try:
+            auxv = subprocess.check_output(['/bin/true'], env={"LD_SHOW_AUXV": "1"})
+            for line in auxv.split(b'\n'):
+                if line.startswith(b'AT_PLATFORM'):
+                    parts = line.split(b':', 1)
+                    if len(parts) == 2:
+                        return parts[1].strip().decode().lower()
+        except Exception:
+            pass
+        return None
+
+
+is_zarch = re.match(r"^(s390x)", machine, re.IGNORECASE)
+@pytest.mark.skipif(not is_linux or not is_zarch,
+                    reason="Only for Linux and IBM Z")
+class Test_ZARCH_Features(AbstractTest):
+    features = ["VX", "VXE", "VXE2"]
+
+    def load_flags(self):
+        self.load_flags_auxv()
+
+
+is_arm = re.match(r"^(arm|aarch64)", machine, re.IGNORECASE)
+@pytest.mark.skipif(not is_linux or not is_arm, reason="Only for Linux and ARM")
+class Test_ARM_Features(AbstractTest):
+    features = [
+        "SVE", "NEON", "ASIMD", "FPHP", "ASIMDHP", "ASIMDDP", "ASIMDFHM"
+    ]
+    features_groups = {
+        "NEON_FP16":  ["NEON", "HALF"],
+        "NEON_VFPV4": ["NEON", "VFPV4"],
+    }
+
+    def load_flags(self):
+        self.load_flags_cpuinfo("Features")
+        arch = self.get_cpuinfo_item("CPU architecture")
+        # in case of mounting virtual filesystem of aarch64 kernel without linux32
+        is_rootfs_v8 = (
+            not re.match(r"^armv[0-9]+l$", machine) and
+            (int('0' + next(iter(arch))) > 7 if arch else 0)
+        )
+        if re.match(r"^(aarch64|AARCH64)", machine) or is_rootfs_v8:
+            self.features_map = {
+                "NEON": "ASIMD", "HALF": "ASIMD", "VFPV4": "ASIMD"
+            }
+        else:
+            self.features_map = {
+                # ELF auxiliary vector and /proc/cpuinfo on Linux kernel(armv8 aarch32)
+                # doesn't provide information about ASIMD, so we assume that ASIMD is supported
+                # if the kernel reports any one of the following ARM8 features.
+                "ASIMD": ("AES", "SHA1", "SHA2", "PMULL", "CRC32")
+            }
+
+
+is_loongarch = re.match(r"^(loongarch)", machine, re.IGNORECASE)
+@pytest.mark.skipif(not is_linux or not is_loongarch, reason="Only for Linux and LoongArch")
+class Test_LOONGARCH_Features(AbstractTest):
+    features = ["LSX"]
+
+    def load_flags(self):
+        self.load_flags_cpuinfo("Features")
+
+
+is_riscv = re.match(r"^(riscv)", machine, re.IGNORECASE)
+@pytest.mark.skipif(not is_linux or not is_riscv, reason="Only for Linux and RISC-V")
+class Test_RISCV_Features(AbstractTest):
+    features = ["RVV"]
+
+    def load_flags(self):
+        self.load_flags_auxv()
+        if not self.features_flags:
+            # Let the test fail and dump if we cannot read HWCAP.
+            return
+        hwcap = int(next(iter(self.features_flags)), 16)
+        if hwcap & (1 << 21):  # HWCAP_RISCV_V
+            self.features_flags.add("RVV")
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_custom_dtypes.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_custom_dtypes.py
new file mode 100644
index 0000000000000000000000000000000000000000..9fe370c621f81a22765e0ecbb52c298950f84a44
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_custom_dtypes.py
@@ -0,0 +1,393 @@
+from tempfile import NamedTemporaryFile
+
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_umath import (
+    _discover_array_parameters as discover_array_params,
+    _get_sfloat_dtype,
+)
+from numpy.testing import assert_array_equal
+
+SF = _get_sfloat_dtype()
+
+
+class TestSFloat:
+    def _get_array(self, scaling, aligned=True):
+        if not aligned:
+            a = np.empty(3 * 8 + 1, dtype=np.uint8)[1:]
+            a = a.view(np.float64)
+            a[:] = [1., 2., 3.]
+        else:
+            a = np.array([1., 2., 3.])
+
+        a *= 1. / scaling  # the casting code also uses the reciprocal.
+        return a.view(SF(scaling))
+
+    def test_sfloat_rescaled(self):
+        sf = SF(1.)
+        sf2 = sf.scaled_by(2.)
+        assert sf2.get_scaling() == 2.
+        sf6 = sf2.scaled_by(3.)
+        assert sf6.get_scaling() == 6.
+
+    def test_class_discovery(self):
+        # This does not test much, since we always discover the scaling as 1.
+        # But most of NumPy (when writing) does not understand DType classes
+        dt, _ = discover_array_params([1., 2., 3.], dtype=SF)
+        assert dt == SF(1.)
+
+    @pytest.mark.parametrize("scaling", [1., -1., 2.])
+    def test_scaled_float_from_floats(self, scaling):
+        a = np.array([1., 2., 3.], dtype=SF(scaling))
+
+        assert a.dtype.get_scaling() == scaling
+        assert_array_equal(scaling * a.view(np.float64), [1., 2., 3.])
+
+    def test_repr(self):
+        # Check the repr, mainly to cover the code paths:
+        assert repr(SF(scaling=1.)) == "_ScaledFloatTestDType(scaling=1.0)"
+
+    def test_dtype_str(self):
+        assert SF(1.).str == "_ScaledFloatTestDType(scaling=1.0)"
+
+    def test_dtype_name(self):
+        assert SF(1.).name == "_ScaledFloatTestDType64"
+
+    def test_sfloat_structured_dtype_printing(self):
+        dt = np.dtype([("id", int), ("value", SF(0.5))])
+        # repr of structured dtypes need special handling because the
+        # implementation bypasses the object repr
+        assert "('value', '_ScaledFloatTestDType64')" in repr(dt)
+
+    @pytest.mark.parametrize("scaling", [1., -1., 2.])
+    def test_sfloat_from_float(self, scaling):
+        a = np.array([1., 2., 3.]).astype(dtype=SF(scaling))
+
+        assert a.dtype.get_scaling() == scaling
+        assert_array_equal(scaling * a.view(np.float64), [1., 2., 3.])
+
+    @pytest.mark.parametrize("aligned", [True, False])
+    @pytest.mark.parametrize("scaling", [1., -1., 2.])
+    def test_sfloat_getitem(self, aligned, scaling):
+        a = self._get_array(1., aligned)
+        assert a.tolist() == [1., 2., 3.]
+
+    @pytest.mark.parametrize("aligned", [True, False])
+    def test_sfloat_casts(self, aligned):
+        a = self._get_array(1., aligned)
+
+        assert np.can_cast(a, SF(-1.), casting="equiv")
+        assert not np.can_cast(a, SF(-1.), casting="no")
+        na = a.astype(SF(-1.))
+        assert_array_equal(-1 * na.view(np.float64), a.view(np.float64))
+
+        assert np.can_cast(a, SF(2.), casting="same_kind")
+        assert not np.can_cast(a, SF(2.), casting="safe")
+        a2 = a.astype(SF(2.))
+        assert_array_equal(2 * a2.view(np.float64), a.view(np.float64))
+
+    @pytest.mark.parametrize("aligned", [True, False])
+    def test_sfloat_cast_internal_errors(self, aligned):
+        a = self._get_array(2e300, aligned)
+
+        with pytest.raises(TypeError,
+                match="error raised inside the core-loop: non-finite factor!"):
+            a.astype(SF(2e-300))
+
+    def test_sfloat_promotion(self):
+        assert np.result_type(SF(2.), SF(3.)) == SF(3.)
+        assert np.result_type(SF(3.), SF(2.)) == SF(3.)
+        # Float64 -> SF(1.) and then promotes normally, so both of this work:
+        assert np.result_type(SF(3.), np.float64) == SF(3.)
+        assert np.result_type(np.float64, SF(0.5)) == SF(1.)
+
+        # Test an undefined promotion:
+        with pytest.raises(TypeError):
+            np.result_type(SF(1.), np.int64)
+
+    def test_basic_multiply(self):
+        a = self._get_array(2.)
+        b = self._get_array(4.)
+
+        res = a * b
+        # multiplies dtype scaling and content separately:
+        assert res.dtype.get_scaling() == 8.
+        expected_view = a.view(np.float64) * b.view(np.float64)
+        assert_array_equal(res.view(np.float64), expected_view)
+
+    def test_possible_and_impossible_reduce(self):
+        # For reductions to work, the first and last operand must have the
+        # same dtype.  For this parametric DType that is not necessarily true.
+        a = self._get_array(2.)
+        # Addition reduction works (as of writing requires to pass initial
+        # because setting a scaled-float from the default `0` fails).
+        res = np.add.reduce(a, initial=0.)
+        assert res == a.astype(np.float64).sum()
+
+        # But each multiplication changes the factor, so a reduction is not
+        # possible (the relaxed version of the old refusal to handle any
+        # flexible dtype).
+        with pytest.raises(TypeError,
+                match="the resolved dtypes are not compatible"):
+            np.multiply.reduce(a)
+
+    def test_basic_ufunc_at(self):
+        float_a = np.array([1., 2., 3.])
+        b = self._get_array(2.)
+
+        float_b = b.view(np.float64).copy()
+        np.multiply.at(float_b, [1, 1, 1], float_a)
+        np.multiply.at(b, [1, 1, 1], float_a)
+
+        assert_array_equal(b.view(np.float64), float_b)
+
+    def test_basic_multiply_promotion(self):
+        float_a = np.array([1., 2., 3.])
+        b = self._get_array(2.)
+
+        res1 = float_a * b
+        res2 = b * float_a
+
+        # one factor is one, so we get the factor of b:
+        assert res1.dtype == res2.dtype == b.dtype
+        expected_view = float_a * b.view(np.float64)
+        assert_array_equal(res1.view(np.float64), expected_view)
+        assert_array_equal(res2.view(np.float64), expected_view)
+
+        # Check that promotion works when `out` is used:
+        np.multiply(b, float_a, out=res2)
+        with pytest.raises(TypeError):
+            # The promoter accepts this (maybe it should not), but the SFloat
+            # result cannot be cast to integer:
+            np.multiply(b, float_a, out=np.arange(3))
+
+    def test_basic_addition(self):
+        a = self._get_array(2.)
+        b = self._get_array(4.)
+
+        res = a + b
+        # addition uses the type promotion rules for the result:
+        assert res.dtype == np.result_type(a.dtype, b.dtype)
+        expected_view = (a.astype(res.dtype).view(np.float64) +
+                         b.astype(res.dtype).view(np.float64))
+        assert_array_equal(res.view(np.float64), expected_view)
+
+    def test_addition_cast_safety(self):
+        """The addition method is special for the scaled float, because it
+        includes the "cast" between different factors, thus cast-safety
+        is influenced by the implementation.
+        """
+        a = self._get_array(2.)
+        b = self._get_array(-2.)
+        c = self._get_array(3.)
+
+        # sign change is "equiv":
+        np.add(a, b, casting="equiv")
+        with pytest.raises(TypeError):
+            np.add(a, b, casting="no")
+
+        # Different factor is "same_kind" (default) so check that "safe" fails
+        with pytest.raises(TypeError):
+            np.add(a, c, casting="safe")
+
+        # Check that casting the output fails also (done by the ufunc here)
+        with pytest.raises(TypeError):
+            np.add(a, a, out=c, casting="safe")
+
+    @pytest.mark.parametrize("ufunc",
+            [np.logical_and, np.logical_or, np.logical_xor])
+    def test_logical_ufuncs_casts_to_bool(self, ufunc):
+        a = self._get_array(2.)
+        a[0] = 0.  # make sure first element is considered False.
+
+        float_equiv = a.astype(float)
+        expected = ufunc(float_equiv, float_equiv)
+        res = ufunc(a, a)
+        assert_array_equal(res, expected)
+
+        # also check that the same works for reductions:
+        expected = ufunc.reduce(float_equiv)
+        res = ufunc.reduce(a)
+        assert_array_equal(res, expected)
+
+        # The output casting does not match the bool, bool -> bool loop:
+        with pytest.raises(TypeError):
+            ufunc(a, a, out=np.empty(a.shape, dtype=int), casting="equiv")
+
+    def test_wrapped_and_wrapped_reductions(self):
+        a = self._get_array(2.)
+        float_equiv = a.astype(float)
+
+        expected = np.hypot(float_equiv, float_equiv)
+        res = np.hypot(a, a)
+        assert res.dtype == a.dtype
+        res_float = res.view(np.float64) * 2
+        assert_array_equal(res_float, expected)
+
+        # Also check reduction (keepdims, due to incorrect getitem)
+        res = np.hypot.reduce(a, keepdims=True)
+        assert res.dtype == a.dtype
+        expected = np.hypot.reduce(float_equiv, keepdims=True)
+        assert res.view(np.float64) * 2 == expected
+
+    def test_sort(self):
+        a = self._get_array(1.)
+        a = a[::-1]  # reverse it
+
+        a.sort()
+        assert_array_equal(a.view(np.float64), [1., 2., 3.])
+
+        a = self._get_array(1.)
+        a = a[::-1]  # reverse it
+
+        sorted_a = np.sort(a)
+        assert_array_equal(sorted_a.view(np.float64), [1., 2., 3.])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [3., 2., 1.])
+
+        a = self._get_array(0.5)  # different factor
+        a = a[::2][::-1]  # non-contiguous
+        sorted_a = np.sort(a)
+        assert_array_equal(sorted_a.view(np.float64), [2., 6.])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 2.])
+
+        a = self._get_array(0.5, aligned=False)
+        a = a[::-1]  # reverse it
+        sorted_a = np.sort(a)
+        assert_array_equal(sorted_a.view(np.float64), [2., 4., 6.])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 4., 2.])
+
+        sorted_a = np.sort(a, stable=True)
+        assert_array_equal(sorted_a.view(np.float64), [2., 4., 6.])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 4., 2.])
+
+        sorted_a = np.sort(a, stable=False)
+        assert_array_equal(sorted_a.view(np.float64), [2., 4., 6.])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 4., 2.])
+
+    def test_argsort(self):
+        a = self._get_array(1.)
+        a = a[::-1]  # reverse it
+
+        indices = np.argsort(a)
+        assert_array_equal(indices, [2, 1, 0])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [3., 2., 1.])
+
+        a = self._get_array(0.5)
+        a = a[::2][::-1]  # reverse it
+        indices = np.argsort(a)
+        assert_array_equal(indices, [1, 0])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 2.])
+
+        a = self._get_array(0.5, aligned=False)
+        a = a[::-1]  # reverse it
+        indices = np.argsort(a)
+        assert_array_equal(indices, [2, 1, 0])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 4., 2.])
+
+        sorted_indices = np.argsort(a, stable=True)
+        assert_array_equal(sorted_indices, [2, 1, 0])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 4., 2.])
+
+        sorted_indices = np.argsort(a, stable=False)
+        assert_array_equal(sorted_indices, [2, 1, 0])
+        # original is unchanged
+        assert_array_equal(a.view(np.float64), [6., 4., 2.])
+
+    def test_astype_class(self):
+        # Very simple test that we accept `.astype()` also on the class.
+        # ScaledFloat always returns the default descriptor, but it does
+        # check the relevant code paths.
+        arr = np.array([1., 2., 3.], dtype=object)
+
+        res = arr.astype(SF)  # passing the class class
+        expected = arr.astype(SF(1.))  # above will have discovered 1. scaling
+        assert_array_equal(res.view(np.float64), expected.view(np.float64))
+
+    def test_creation_class(self):
+        # passing in a dtype class should return
+        # the default descriptor
+        arr1 = np.array([1., 2., 3.], dtype=SF)
+        assert arr1.dtype == SF(1.)
+        arr2 = np.array([1., 2., 3.], dtype=SF(1.))
+        assert_array_equal(arr1.view(np.float64), arr2.view(np.float64))
+        assert arr1.dtype == arr2.dtype
+
+        assert np.empty(3, dtype=SF).dtype == SF(1.)
+        assert np.empty_like(arr1, dtype=SF).dtype == SF(1.)
+        assert np.zeros(3, dtype=SF).dtype == SF(1.)
+        assert np.zeros_like(arr1, dtype=SF).dtype == SF(1.)
+
+    @pytest.mark.thread_unsafe(
+        reason="_ScaledFloatTestDType setup is thread-unsafe (gh-29850)"
+    )
+    def test_np_save_load(self):
+        # this monkeypatch is needed because pickle
+        # uses the repr of a type to reconstruct it
+        np._ScaledFloatTestDType = SF
+
+        arr = np.array([1.0, 2.0, 3.0], dtype=SF(1.0))
+
+        # adapted from RoundtripTest.roundtrip in np.save tests
+        with NamedTemporaryFile("wb", delete=False, suffix=".npz") as f:
+            with pytest.warns(UserWarning) as record:
+                np.savez(f.name, arr)
+
+        assert len(record) == 1
+
+        with np.load(f.name, allow_pickle=True) as data:
+            larr = data["arr_0"]
+        assert_array_equal(arr.view(np.float64), larr.view(np.float64))
+        assert larr.dtype == arr.dtype == SF(1.0)
+
+        del np._ScaledFloatTestDType
+
+    def test_flatiter(self):
+        arr = np.array([1.0, 2.0, 3.0], dtype=SF(1.0))
+
+        for i, val in enumerate(arr.flat):
+            assert arr[i] == val
+
+    @pytest.mark.parametrize(
+        "index", [
+            [1, 2], ..., slice(None, 2, None),
+            np.array([True, True, False]), np.array([0, 1])
+        ], ids=["int_list", "ellipsis", "slice", "bool_array", "int_array"])
+    def test_flatiter_index(self, index):
+        arr = np.array([1.0, 2.0, 3.0], dtype=SF(1.0))
+        np.testing.assert_array_equal(
+            arr[index].view(np.float64), arr.flat[index].view(np.float64))
+
+        arr2 = arr.copy()
+        arr[index] = 5.0
+        arr2.flat[index] = 5.0
+        np.testing.assert_array_equal(
+            arr.view(np.float64), arr2.view(np.float64))
+
+@pytest.mark.thread_unsafe(
+    reason="_ScaledFloatTestDType setup is thread-unsafe (gh-29850)"
+)
+def test_type_pickle():
+    # can't actually unpickle, but we can pickle (if in namespace)
+    import pickle
+
+    np._ScaledFloatTestDType = SF
+
+    s = pickle.dumps(SF)
+    res = pickle.loads(s)
+    assert res is SF
+
+    del np._ScaledFloatTestDType
+
+
+def test_is_numeric():
+    assert SF._is_numeric
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cython.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cython.py
new file mode 100644
index 0000000000000000000000000000000000000000..e595fe463ec6d066fa23c1047865ee1a5d9804b6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_cython.py
@@ -0,0 +1,367 @@
+import os
+import subprocess
+import sys
+import sysconfig
+from datetime import datetime
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_EDITABLE, IS_WASM, assert_array_equal
+
+# This import is copied from random.tests.test_extending
+try:
+    import cython
+    from Cython.Compiler.Version import version as cython_version
+except ImportError:
+    cython = None
+else:
+    from numpy._utils import _pep440
+
+    # Note: keep in sync with the one in pyproject.toml
+    required_version = "3.0.6"
+    if _pep440.parse(cython_version) < _pep440.Version(required_version):
+        # too old or wrong cython, skip the test
+        cython = None
+
+pytestmark = pytest.mark.skipif(cython is None, reason="requires cython")
+
+
+if IS_EDITABLE:
+    pytest.skip(
+        "Editable install doesn't support tests with a compile step",
+        allow_module_level=True
+    )
+
+
+@pytest.fixture(scope='module')
+def install_temp(tmpdir_factory):
+    # Based in part on test_cython from random.tests.test_extending
+    if IS_WASM:
+        pytest.skip("No subprocess")
+
+    srcdir = os.path.join(os.path.dirname(__file__), 'examples', 'cython')
+    build_dir = tmpdir_factory.mktemp("cython_test") / "build"
+    os.makedirs(build_dir, exist_ok=True)
+    # Ensure we use the correct Python interpreter even when `meson` is
+    # installed in a different Python environment (see gh-24956)
+    native_file = str(build_dir / 'interpreter-native-file.ini')
+    with open(native_file, 'w') as f:
+        f.write("[binaries]\n")
+        f.write(f"python = '{sys.executable}'\n")
+        f.write(f"python3 = '{sys.executable}'")
+
+    try:
+        subprocess.check_call(["meson", "--version"])
+    except FileNotFoundError:
+        pytest.skip("No usable 'meson' found")
+    if sysconfig.get_platform() == "win-arm64":
+        pytest.skip("Meson unable to find MSVC linker on win-arm64")
+    if sys.platform == "win32":
+        subprocess.check_call(["meson", "setup",
+                               "--buildtype=release",
+                               "--vsenv", "--native-file", native_file,
+                               str(srcdir)],
+                              cwd=build_dir,
+                              )
+    else:
+        subprocess.check_call(["meson", "setup",
+                               "--native-file", native_file, str(srcdir)],
+                              cwd=build_dir
+                              )
+    try:
+        subprocess.check_call(["meson", "compile", "-vv"], cwd=build_dir)
+    except subprocess.CalledProcessError:
+        print("----------------")
+        print("meson build failed when doing")
+        print(f"'meson setup --native-file {native_file} {srcdir}'")
+        print("'meson compile -vv'")
+        print(f"in {build_dir}")
+        print("----------------")
+        raise
+
+    sys.path.append(str(build_dir))
+
+
+def test_is_timedelta64_object(install_temp):
+    import checks
+
+    assert checks.is_td64(np.timedelta64(1234))
+    assert checks.is_td64(np.timedelta64(1234, "ns"))
+    assert checks.is_td64(np.timedelta64("NaT", "ns"))
+
+    assert not checks.is_td64(1)
+    assert not checks.is_td64(None)
+    assert not checks.is_td64("foo")
+    assert not checks.is_td64(np.datetime64("now", "s"))
+
+
+def test_is_datetime64_object(install_temp):
+    import checks
+
+    assert checks.is_dt64(np.datetime64(1234, "ns"))
+    assert checks.is_dt64(np.datetime64("NaT", "ns"))
+
+    assert not checks.is_dt64(1)
+    assert not checks.is_dt64(None)
+    assert not checks.is_dt64("foo")
+    assert not checks.is_dt64(np.timedelta64(1234))
+
+
+def test_get_datetime64_value(install_temp):
+    import checks
+
+    dt64 = np.datetime64("2016-01-01", "ns")
+
+    result = checks.get_dt64_value(dt64)
+    expected = dt64.view("i8")
+
+    assert result == expected
+
+
+def test_get_timedelta64_value(install_temp):
+    import checks
+
+    td64 = np.timedelta64(12345, "h")
+
+    result = checks.get_td64_value(td64)
+    expected = td64.view("i8")
+
+    assert result == expected
+
+
+def test_get_datetime64_unit(install_temp):
+    import checks
+
+    dt64 = np.datetime64("2016-01-01", "ns")
+    result = checks.get_dt64_unit(dt64)
+    expected = 10
+    assert result == expected
+
+    td64 = np.timedelta64(12345, "h")
+    result = checks.get_dt64_unit(td64)
+    expected = 5
+    assert result == expected
+
+
+def test_abstract_scalars(install_temp):
+    import checks
+
+    assert checks.is_integer(1)
+    assert checks.is_integer(np.int8(1))
+    assert checks.is_integer(np.uint64(1))
+
+def test_default_int(install_temp):
+    import checks
+
+    assert checks.get_default_integer() is np.dtype(int)
+
+
+def test_ravel_axis(install_temp):
+    import checks
+
+    assert checks.get_ravel_axis() == np.iinfo("intc").min
+
+
+def test_convert_datetime64_to_datetimestruct(install_temp):
+    # GH#21199
+    import checks
+
+    res = checks.convert_datetime64_to_datetimestruct()
+
+    exp = {
+        "year": 2022,
+        "month": 3,
+        "day": 15,
+        "hour": 20,
+        "min": 1,
+        "sec": 55,
+        "us": 260292,
+        "ps": 0,
+        "as": 0,
+    }
+
+    assert res == exp
+
+
+class TestDatetimeStrings:
+    def test_make_iso_8601_datetime(self, install_temp):
+        # GH#21199
+        import checks
+        dt = datetime(2016, 6, 2, 10, 45, 19)
+        # uses NPY_FR_s
+        result = checks.make_iso_8601_datetime(dt)
+        assert result == b"2016-06-02T10:45:19"
+
+    def test_get_datetime_iso_8601_strlen(self, install_temp):
+        # GH#21199
+        import checks
+        # uses NPY_FR_ns
+        res = checks.get_datetime_iso_8601_strlen()
+        assert res == 48
+
+
+@pytest.mark.parametrize(
+    "arrays",
+    [
+        [np.random.rand(2)],
+        [np.random.rand(2), np.random.rand(3, 1)],
+        [np.random.rand(2), np.random.rand(2, 3, 2), np.random.rand(1, 3, 2)],
+        [np.random.rand(2, 1)] * 4 + [np.random.rand(1, 1, 1)],
+    ]
+)
+def test_multiiter_fields(install_temp, arrays):
+    import checks
+    bcast = np.broadcast(*arrays)
+
+    assert bcast.ndim == checks.get_multiiter_number_of_dims(bcast)
+    assert bcast.size == checks.get_multiiter_size(bcast)
+    assert bcast.numiter == checks.get_multiiter_num_of_iterators(bcast)
+    assert bcast.shape == checks.get_multiiter_shape(bcast)
+    assert bcast.index == checks.get_multiiter_current_index(bcast)
+    assert all(
+        x.base is y.base
+        for x, y in zip(bcast.iters, checks.get_multiiter_iters(bcast))
+    )
+
+
+def test_dtype_flags(install_temp):
+    import checks
+    dtype = np.dtype("i,O")  # dtype with somewhat interesting flags
+    assert dtype.flags == checks.get_dtype_flags(dtype)
+
+
+def test_conv_intp(install_temp):
+    import checks
+
+    class myint:
+        def __int__(self):
+            return 3
+
+    # These conversion passes via `__int__`, not `__index__`:
+    assert checks.conv_intp(3.) == 3
+    assert checks.conv_intp(myint()) == 3
+
+
+def test_npyiter_api(install_temp):
+    import checks
+    arr = np.random.rand(3, 2)
+
+    it = np.nditer(arr)
+    assert checks.get_npyiter_size(it) == it.itersize == np.prod(arr.shape)
+    assert checks.get_npyiter_ndim(it) == it.ndim == 1
+    assert checks.npyiter_has_index(it) == it.has_index == False
+
+    it = np.nditer(arr, flags=["c_index"])
+    assert checks.npyiter_has_index(it) == it.has_index == True
+    assert (
+        checks.npyiter_has_delayed_bufalloc(it)
+        == it.has_delayed_bufalloc
+        == False
+    )
+
+    it = np.nditer(arr, flags=["buffered", "delay_bufalloc"])
+    assert (
+        checks.npyiter_has_delayed_bufalloc(it)
+        == it.has_delayed_bufalloc
+        == True
+    )
+
+    it = np.nditer(arr, flags=["multi_index"])
+    assert checks.get_npyiter_size(it) == it.itersize == np.prod(arr.shape)
+    assert checks.npyiter_has_multi_index(it) == it.has_multi_index == True
+    assert checks.get_npyiter_ndim(it) == it.ndim == 2
+    assert checks.test_get_multi_index_iter_next(it, arr)
+
+    arr2 = np.random.rand(2, 1, 2)
+    it = np.nditer([arr, arr2])
+    assert checks.get_npyiter_nop(it) == it.nop == 2
+    assert checks.get_npyiter_size(it) == it.itersize == 12
+    assert checks.get_npyiter_ndim(it) == it.ndim == 3
+    assert all(
+        x is y for x, y in zip(checks.get_npyiter_operands(it), it.operands)
+    )
+    assert all(
+        np.allclose(x, y)
+        for x, y in zip(checks.get_npyiter_itviews(it), it.itviews)
+    )
+
+
+def test_fillwithbytes(install_temp):
+    import checks
+
+    arr = checks.compile_fillwithbyte()
+    assert_array_equal(arr, np.ones((1, 2)))
+
+
+def test_complex(install_temp):
+    from checks import inc2_cfloat_struct
+
+    arr = np.array([0, 10 + 10j], dtype="F")
+    inc2_cfloat_struct(arr)
+    assert arr[1] == (12 + 12j)
+
+
+def test_npystring_pack(install_temp):
+    """Check that the cython API can write to a vstring array."""
+    import checks
+
+    arr = np.array(['a', 'b', 'c'], dtype='T')
+    assert checks.npystring_pack(arr) == 0
+
+    # checks.npystring_pack writes to the beginning of the array
+    assert arr[0] == "Hello world"
+
+def test_npystring_load(install_temp):
+    """Check that the cython API can load strings from a vstring array."""
+    import checks
+
+    arr = np.array(['abcd', 'b', 'c'], dtype='T')
+    result = checks.npystring_load(arr)
+    assert result == 'abcd'
+
+
+def test_npystring_multiple_allocators(install_temp):
+    """Check that the cython API can acquire/release multiple vstring allocators."""
+    import checks
+
+    dt = np.dtypes.StringDType(na_object=None)
+    arr1 = np.array(['abcd', 'b', 'c'], dtype=dt)
+    arr2 = np.array(['a', 'b', 'c'], dtype=dt)
+
+    assert checks.npystring_pack_multiple(arr1, arr2) == 0
+    assert arr1[0] == "Hello world"
+    assert arr1[-1] is None
+    assert arr2[0] == "test this"
+
+
+def test_npystring_allocators_other_dtype(install_temp):
+    """Check that allocators for non-StringDType arrays is NULL."""
+    import checks
+
+    arr1 = np.array([1, 2, 3], dtype='i')
+    arr2 = np.array([4, 5, 6], dtype='i')
+
+    assert checks.npystring_allocators_other_types(arr1, arr2) == 0
+
+
+@pytest.mark.skipif(sysconfig.get_platform() == 'win-arm64',
+                    reason='no checks module on win-arm64')
+def test_npy_uintp_type_enum(install_temp):
+    import checks
+    assert checks.check_npy_uintp_type_enum()
+
+
+@pytest.mark.skipif(
+    sys.version_info < (3, 14),
+    reason="Tests behavior that happens on Python 3.14 and newer"
+)
+@pytest.mark.skipif(
+    sysconfig.get_platform() == 'win-arm64',
+    reason='no checks module on win-arm64'
+)
+def test_resize_refcheck(install_temp):
+    import checks
+    msg = "It is possible that this is a false positive."
+    with pytest.raises(ValueError, match=msg):
+        checks.resize_refcheck_test()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_datetime.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_datetime.py
new file mode 100644
index 0000000000000000000000000000000000000000..fb49ffe52ce6b5843304b8d6440d6975f64d4b65
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_datetime.py
@@ -0,0 +1,2797 @@
+import datetime
+import pickle
+import warnings
+from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
+
+import pytest
+
+import numpy
+import numpy as np
+from numpy.testing import (
+    IS_WASM,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+try:
+    RecursionError
+except NameError:
+    RecursionError = RuntimeError  # python < 3.5
+
+try:
+    ZoneInfo("US/Central")
+    _has_tz = True
+except ZoneInfoNotFoundError:
+    _has_tz = False
+
+def _assert_equal_hash(v1, v2):
+    assert v1 == v2
+    assert hash(v1) == hash(v2)
+    assert v2 in {v1}
+
+
+class TestDateTime:
+
+    def test_string(self):
+        msg = "no explicit representation of timezones available for " \
+              "np.datetime64"
+        with pytest.warns(UserWarning, match=msg):
+            np.datetime64('2000-01-01T00+01')
+
+    def test_datetime(self):
+        msg = "no explicit representation of timezones available for " \
+              "np.datetime64"
+        with pytest.warns(UserWarning, match=msg):
+            t0 = np.datetime64('2023-06-09T12:18:40Z', 'ns')
+
+        t0 = np.datetime64('2023-06-09T12:18:40', 'ns')
+
+    def test_datetime_dtype_creation(self):
+        for unit in ['Y', 'M', 'W', 'D',
+                     'h', 'm', 's', 'ms', 'us',
+                     'μs',  # alias for us
+                     'ns', 'ps', 'fs', 'as']:
+            dt1 = np.dtype(f'M8[750{unit}]')
+            assert_(dt1 == np.dtype(f'datetime64[750{unit}]'))
+            dt2 = np.dtype(f'm8[{unit}]')
+            assert_(dt2 == np.dtype(f'timedelta64[{unit}]'))
+
+        # Generic units shouldn't add [] to the end
+        assert_equal(str(np.dtype("M8")), "datetime64")
+
+        # Should be possible to specify the endianness
+        assert_equal(np.dtype("=M8"), np.dtype("M8"))
+        assert_equal(np.dtype("=M8[s]"), np.dtype("M8[s]"))
+        assert_(np.dtype(">M8") == np.dtype("M8") or
+                np.dtype("<M8") == np.dtype("M8"))
+        assert_(np.dtype(">M8[D]") == np.dtype("M8[D]") or
+                np.dtype("<M8[D]") == np.dtype("M8[D]"))
+        assert_(np.dtype(">M8") != np.dtype("<M8"))
+
+        assert_equal(np.dtype("=m8"), np.dtype("m8"))
+        assert_equal(np.dtype("=m8[s]"), np.dtype("m8[s]"))
+        assert_(np.dtype(">m8") == np.dtype("m8") or
+                np.dtype("<m8") == np.dtype("m8"))
+        assert_(np.dtype(">m8[D]") == np.dtype("m8[D]") or
+                np.dtype("<m8[D]") == np.dtype("m8[D]"))
+        assert_(np.dtype(">m8") != np.dtype("<m8"))
+
+        # Check that the parser rejects bad datetime types
+        assert_raises(TypeError, np.dtype, 'M8[badunit]')
+        assert_raises(TypeError, np.dtype, 'm8[badunit]')
+        assert_raises(TypeError, np.dtype, 'M8[YY]')
+        assert_raises(TypeError, np.dtype, 'm8[YY]')
+        assert_raises(TypeError, np.dtype, 'm4')
+        assert_raises(TypeError, np.dtype, 'M7')
+        assert_raises(TypeError, np.dtype, 'm7')
+        assert_raises(TypeError, np.dtype, 'M16')
+        assert_raises(TypeError, np.dtype, 'm16')
+        assert_raises(TypeError, np.dtype, 'M8[3000000000ps]')
+
+    def test_datetime_casting_rules(self):
+        # Cannot cast safely/same_kind between timedelta and datetime
+        assert_(not np.can_cast('m8', 'M8', casting='same_kind'))
+        assert_(not np.can_cast('M8', 'm8', casting='same_kind'))
+        assert_(not np.can_cast('m8', 'M8', casting='safe'))
+        assert_(not np.can_cast('M8', 'm8', casting='safe'))
+
+        # Can cast safely/same_kind from integer to timedelta
+        assert_(np.can_cast('i8', 'm8', casting='same_kind'))
+        assert_(np.can_cast('i8', 'm8', casting='safe'))
+        assert_(np.can_cast('i4', 'm8', casting='same_kind'))
+        assert_(np.can_cast('i4', 'm8', casting='safe'))
+        assert_(np.can_cast('u4', 'm8', casting='same_kind'))
+        assert_(np.can_cast('u4', 'm8', casting='safe'))
+
+        # Cannot cast safely from unsigned integer of the same size, which
+        # could overflow
+        assert_(np.can_cast('u8', 'm8', casting='same_kind'))
+        assert_(not np.can_cast('u8', 'm8', casting='safe'))
+
+        # Cannot cast safely/same_kind from float to timedelta
+        assert_(not np.can_cast('f4', 'm8', casting='same_kind'))
+        assert_(not np.can_cast('f4', 'm8', casting='safe'))
+
+        # Cannot cast safely/same_kind from integer to datetime
+        assert_(not np.can_cast('i8', 'M8', casting='same_kind'))
+        assert_(not np.can_cast('i8', 'M8', casting='safe'))
+
+        # Cannot cast safely/same_kind from bool to datetime
+        assert_(not np.can_cast('b1', 'M8', casting='same_kind'))
+        assert_(not np.can_cast('b1', 'M8', casting='safe'))
+        # Can cast safely/same_kind from bool to timedelta
+        assert_(np.can_cast('b1', 'm8', casting='same_kind'))
+        assert_(np.can_cast('b1', 'm8', casting='safe'))
+
+        # Can cast datetime safely from months/years to days
+        assert_(np.can_cast('M8[M]', 'M8[D]', casting='safe'))
+        assert_(np.can_cast('M8[Y]', 'M8[D]', casting='safe'))
+        # Cannot cast timedelta safely from months/years to days
+        assert_(not np.can_cast('m8[M]', 'm8[D]', casting='safe'))
+        assert_(not np.can_cast('m8[Y]', 'm8[D]', casting='safe'))
+        # Can cast datetime same_kind from months/years to days
+        assert_(np.can_cast('M8[M]', 'M8[D]', casting='same_kind'))
+        assert_(np.can_cast('M8[Y]', 'M8[D]', casting='same_kind'))
+        # Can't cast timedelta same_kind from months/years to days
+        assert_(not np.can_cast('m8[M]', 'm8[D]', casting='same_kind'))
+        assert_(not np.can_cast('m8[Y]', 'm8[D]', casting='same_kind'))
+        # Can cast datetime same_kind across the date/time boundary
+        assert_(np.can_cast('M8[D]', 'M8[h]', casting='same_kind'))
+        # Can cast timedelta same_kind across the date/time boundary
+        assert_(np.can_cast('m8[D]', 'm8[h]', casting='same_kind'))
+        assert_(np.can_cast('m8[h]', 'm8[D]', casting='same_kind'))
+
+        # Cannot cast safely if the integer multiplier doesn't divide
+        assert_(not np.can_cast('M8[7h]', 'M8[3h]', casting='safe'))
+        assert_(not np.can_cast('M8[3h]', 'M8[6h]', casting='safe'))
+        # But can cast same_kind
+        assert_(np.can_cast('M8[7h]', 'M8[3h]', casting='same_kind'))
+        # Can cast safely if the integer multiplier does divide
+        assert_(np.can_cast('M8[6h]', 'M8[3h]', casting='safe'))
+
+        # We can always cast types with generic units (corresponding to NaT) to
+        # more specific types
+        assert_(np.can_cast('m8', 'm8[h]', casting='same_kind'))
+        assert_(np.can_cast('m8', 'm8[h]', casting='safe'))
+        assert_(np.can_cast('M8', 'M8[h]', casting='same_kind'))
+        assert_(np.can_cast('M8', 'M8[h]', casting='safe'))
+        # but not the other way around
+        assert_(not np.can_cast('m8[h]', 'm8', casting='same_kind'))
+        assert_(not np.can_cast('m8[h]', 'm8', casting='safe'))
+        assert_(not np.can_cast('M8[h]', 'M8', casting='same_kind'))
+        assert_(not np.can_cast('M8[h]', 'M8', casting='safe'))
+
+    def test_datetime_prefix_conversions(self):
+        # regression tests related to gh-19631;
+        # test metric prefixes from seconds down to
+        # attoseconds for bidirectional conversions
+        smaller_units = ['M8[7000ms]',
+                         'M8[2000us]',
+                         'M8[1000ns]',
+                         'M8[5000ns]',
+                         'M8[2000ps]',
+                         'M8[9000fs]',
+                         'M8[1000as]',
+                         'M8[2000000ps]',
+                         'M8[1000000as]',
+                         'M8[2000000000ps]',
+                         'M8[1000000000as]']
+        larger_units = ['M8[7s]',
+                        'M8[2ms]',
+                        'M8[us]',
+                        'M8[5us]',
+                        'M8[2ns]',
+                        'M8[9ps]',
+                        'M8[1fs]',
+                        'M8[2us]',
+                        'M8[1ps]',
+                        'M8[2ms]',
+                        'M8[1ns]']
+        for larger_unit, smaller_unit in zip(larger_units, smaller_units):
+            assert np.can_cast(larger_unit, smaller_unit, casting='safe')
+            assert np.can_cast(smaller_unit, larger_unit, casting='safe')
+
+    @pytest.mark.parametrize("unit", [
+        "s", "ms", "us", "ns", "ps", "fs", "as"])
+    def test_prohibit_negative_datetime(self, unit):
+        with assert_raises(TypeError):
+            np.array([1], dtype=f"M8[-1{unit}]")
+
+    def test_compare_generic_nat(self):
+        # regression tests for gh-6452
+        assert_(np.datetime64('NaT') !=
+                np.datetime64('2000') + np.timedelta64('NaT'))
+        assert_(np.datetime64('NaT') != np.datetime64('NaT', 'us'))
+        assert_(np.datetime64('NaT', 'us') != np.datetime64('NaT'))
+
+    @pytest.mark.parametrize("size", [
+        3, 21, 217, 1000])
+    def test_datetime_nat_argsort_stability(self, size):
+        # NaT < NaT should be False internally for
+        # sort stability
+        expected = np.arange(size)
+        arr = np.tile(np.datetime64('NaT'), size)
+        assert_equal(np.argsort(arr, kind='mergesort'), expected)
+
+    @pytest.mark.parametrize("size", [
+        3, 21, 217, 1000])
+    def test_timedelta_nat_argsort_stability(self, size):
+        # NaT < NaT should be False internally for
+        # sort stability
+        expected = np.arange(size)
+        arr = np.tile(np.timedelta64('NaT'), size)
+        assert_equal(np.argsort(arr, kind='mergesort'), expected)
+
+    @pytest.mark.parametrize("arr, expected", [
+        # the example provided in gh-12629
+        (['NaT', 1, 2, 3],
+         [1, 2, 3, 'NaT']),
+        # multiple NaTs
+        (['NaT', 9, 'NaT', -707],
+         [-707, 9, 'NaT', 'NaT']),
+        # this sort explores another code path for NaT
+        ([1, -2, 3, 'NaT'],
+         [-2, 1, 3, 'NaT']),
+        # 2-D array
+        ([[51, -220, 'NaT'],
+          [-17, 'NaT', -90]],
+         [[-220, 51, 'NaT'],
+          [-90, -17, 'NaT']]),
+        ])
+    @pytest.mark.parametrize("dtype", [
+        'M8[ns]', 'M8[us]',
+        'm8[ns]', 'm8[us]'])
+    def test_datetime_timedelta_sort_nat(self, arr, expected, dtype):
+        # fix for gh-12629 and gh-15063; NaT sorting to end of array
+        arr = np.array(arr, dtype=dtype)
+        expected = np.array(expected, dtype=dtype)
+        arr.sort()
+        assert_equal(arr, expected)
+
+    def test_datetime_scalar_construction(self):
+        # Construct with different units
+        assert_equal(np.datetime64('1950-03-12', 'D'),
+                     np.datetime64('1950-03-12'))
+        assert_equal(np.datetime64('1950-03-12T13', 's'),
+                     np.datetime64('1950-03-12T13', 'm'))
+
+        # Default construction means NaT
+        assert_equal(np.datetime64(), np.datetime64('NaT'))
+
+        # Some basic strings and repr
+        assert_equal(str(np.datetime64('NaT')), 'NaT')
+        assert_equal(repr(np.datetime64('NaT')),
+                     "np.datetime64('NaT','generic')")
+        assert_equal(str(np.datetime64('2011-02')), '2011-02')
+        assert_equal(repr(np.datetime64('2011-02')),
+                     "np.datetime64('2011-02')")
+        assert_equal(repr(np.datetime64('NaT').astype(np.dtype("datetime64[ns]"))),
+                     "np.datetime64('NaT','ns')")
+
+        # None gets constructed as NaT
+        assert_equal(np.datetime64(None), np.datetime64('NaT'))
+
+        # Default construction of NaT is in generic units
+        assert_equal(np.datetime64().dtype, np.dtype('M8'))
+        assert_equal(np.datetime64('NaT').dtype, np.dtype('M8'))
+
+        # Construction from integers requires a specified unit
+        assert_raises(ValueError, np.datetime64, 17)
+
+        # When constructing from a scalar or zero-dimensional array,
+        # it either keeps the units or you can override them.
+        a = np.datetime64('2000-03-18T16', 'h')
+        b = np.array('2000-03-18T16', dtype='M8[h]')
+
+        assert_equal(a.dtype, np.dtype('M8[h]'))
+        assert_equal(b.dtype, np.dtype('M8[h]'))
+
+        assert_equal(np.datetime64(a), a)
+        assert_equal(np.datetime64(a).dtype, np.dtype('M8[h]'))
+
+        assert_equal(np.datetime64(b), a)
+        assert_equal(np.datetime64(b).dtype, np.dtype('M8[h]'))
+
+        assert_equal(np.datetime64(a, 's'), a)
+        assert_equal(np.datetime64(a, 's').dtype, np.dtype('M8[s]'))
+
+        assert_equal(np.datetime64(b, 's'), a)
+        assert_equal(np.datetime64(b, 's').dtype, np.dtype('M8[s]'))
+
+        # Construction from datetime.date
+        assert_equal(np.datetime64('1945-03-25'),
+                     np.datetime64(datetime.date(1945, 3, 25)))
+        assert_equal(np.datetime64('2045-03-25', 'D'),
+                     np.datetime64(datetime.date(2045, 3, 25), 'D'))
+        # Construction from datetime.datetime
+        assert_equal(np.datetime64('1980-01-25T14:36:22.5'),
+                     np.datetime64(datetime.datetime(1980, 1, 25,
+                                                14, 36, 22, 500000)))
+
+        # Construction with time units from a date is okay
+        assert_equal(np.datetime64('1920-03-13', 'h'),
+                     np.datetime64('1920-03-13T00'))
+        assert_equal(np.datetime64('1920-03', 'm'),
+                     np.datetime64('1920-03-01T00:00'))
+        assert_equal(np.datetime64('1920', 's'),
+                     np.datetime64('1920-01-01T00:00:00'))
+        assert_equal(np.datetime64(datetime.date(2045, 3, 25), 'ms'),
+                     np.datetime64('2045-03-25T00:00:00.000'))
+
+        # Construction with date units from a datetime is also okay
+        assert_equal(np.datetime64('1920-03-13T18', 'D'),
+                     np.datetime64('1920-03-13'))
+        assert_equal(np.datetime64('1920-03-13T18:33:12', 'M'),
+                     np.datetime64('1920-03'))
+        assert_equal(np.datetime64('1920-03-13T18:33:12.5', 'Y'),
+                     np.datetime64('1920'))
+
+    def test_datetime_scalar_construction_timezone(self):
+        msg = "no explicit representation of timezones available for " \
+              "np.datetime64"
+        # verify that supplying an explicit timezone works, but is deprecated
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(np.datetime64('2000-01-01T00Z'),
+                         np.datetime64('2000-01-01T00'))
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(np.datetime64('2000-01-01T00-08'),
+                         np.datetime64('2000-01-01T08'))
+
+    def test_datetime_array_find_type(self):
+        dt = np.datetime64('1970-01-01', 'M')
+        arr = np.array([dt])
+        assert_equal(arr.dtype, np.dtype('M8[M]'))
+
+        # at the moment, we don't automatically convert these to datetime64
+
+        dt = datetime.date(1970, 1, 1)
+        arr = np.array([dt])
+        assert_equal(arr.dtype, np.dtype('O'))
+
+        dt = datetime.datetime(1970, 1, 1, 12, 30, 40)
+        arr = np.array([dt])
+        assert_equal(arr.dtype, np.dtype('O'))
+
+        # find "supertype" for non-dates and dates
+
+        b = np.bool(True)
+        dm = np.datetime64('1970-01-01', 'M')
+        d = datetime.date(1970, 1, 1)
+        dt = datetime.datetime(1970, 1, 1, 12, 30, 40)
+
+        arr = np.array([b, dm])
+        assert_equal(arr.dtype, np.dtype('O'))
+
+        arr = np.array([b, d])
+        assert_equal(arr.dtype, np.dtype('O'))
+
+        arr = np.array([b, dt])
+        assert_equal(arr.dtype, np.dtype('O'))
+
+        arr = np.array([d, d]).astype('datetime64')
+        assert_equal(arr.dtype, np.dtype('M8[D]'))
+
+        arr = np.array([dt, dt]).astype('datetime64')
+        assert_equal(arr.dtype, np.dtype('M8[us]'))
+
+    @pytest.mark.parametrize("unit", [
+    # test all date / time units and use
+    # "generic" to select generic unit
+    ("Y"), ("M"), ("W"), ("D"), ("h"), ("m"),
+    ("s"), ("ms"), ("us"), ("ns"), ("ps"),
+    ("fs"), ("as"), ("generic")])
+    def test_timedelta_np_int_construction(self, unit):
+        # regression test for gh-7617
+        if unit != "generic":
+            assert_equal(np.timedelta64(np.int64(123), unit),
+                         np.timedelta64(123, unit))
+        else:
+            assert_equal(np.timedelta64(np.int64(123)),
+                         np.timedelta64(123))
+
+    def test_timedelta_scalar_construction(self):
+        # Construct with different units
+        assert_equal(np.timedelta64(7, 'D'),
+                     np.timedelta64(1, 'W'))
+        assert_equal(np.timedelta64(120, 's'),
+                     np.timedelta64(2, 'm'))
+
+        # Default construction means 0
+        assert_equal(np.timedelta64(), np.timedelta64(0))
+
+        # None gets constructed as NaT
+        assert_equal(np.timedelta64(None), np.timedelta64('NaT'))
+
+        # Some basic strings and repr
+        assert_equal(str(np.timedelta64('NaT')), 'NaT')
+        assert_equal(repr(np.timedelta64('NaT')),
+                     "np.timedelta64('NaT')")
+        assert_equal(str(np.timedelta64(3, 's')), '3 seconds')
+        assert_equal(repr(np.timedelta64(-3, 's')),
+                     "np.timedelta64(-3,'s')")
+        assert_equal(repr(np.timedelta64(12)),
+                     "np.timedelta64(12)")
+
+        # Construction from an integer produces generic units
+        assert_equal(np.timedelta64(12).dtype, np.dtype('m8'))
+
+        # When constructing from a scalar or zero-dimensional array,
+        # it either keeps the units or you can override them.
+        a = np.timedelta64(2, 'h')
+        b = np.array(2, dtype='m8[h]')
+
+        assert_equal(a.dtype, np.dtype('m8[h]'))
+        assert_equal(b.dtype, np.dtype('m8[h]'))
+
+        assert_equal(np.timedelta64(a), a)
+        assert_equal(np.timedelta64(a).dtype, np.dtype('m8[h]'))
+
+        assert_equal(np.timedelta64(b), a)
+        assert_equal(np.timedelta64(b).dtype, np.dtype('m8[h]'))
+
+        assert_equal(np.timedelta64(a, 's'), a)
+        assert_equal(np.timedelta64(a, 's').dtype, np.dtype('m8[s]'))
+
+        assert_equal(np.timedelta64(b, 's'), a)
+        assert_equal(np.timedelta64(b, 's').dtype, np.dtype('m8[s]'))
+
+        # Construction from datetime.timedelta
+        assert_equal(np.timedelta64(5, 'D'),
+                     np.timedelta64(datetime.timedelta(days=5)))
+        assert_equal(np.timedelta64(102347621, 's'),
+                     np.timedelta64(datetime.timedelta(seconds=102347621)))
+        assert_equal(np.timedelta64(-10234760000, 'us'),
+                     np.timedelta64(datetime.timedelta(
+                                            microseconds=-10234760000)))
+        assert_equal(np.timedelta64(10234760000, 'us'),
+                     np.timedelta64(datetime.timedelta(
+                                            microseconds=10234760000)))
+        assert_equal(np.timedelta64(1023476, 'ms'),
+                     np.timedelta64(datetime.timedelta(milliseconds=1023476)))
+        assert_equal(np.timedelta64(10, 'm'),
+                     np.timedelta64(datetime.timedelta(minutes=10)))
+        assert_equal(np.timedelta64(281, 'h'),
+                     np.timedelta64(datetime.timedelta(hours=281)))
+        assert_equal(np.timedelta64(28, 'W'),
+                     np.timedelta64(datetime.timedelta(weeks=28)))
+
+        # Cannot construct across nonlinear time unit boundaries
+        a = np.timedelta64(3, 's')
+        assert_raises(TypeError, np.timedelta64, a, 'M')
+        assert_raises(TypeError, np.timedelta64, a, 'Y')
+        a = np.timedelta64(6, 'M')
+        assert_raises(TypeError, np.timedelta64, a, 'D')
+        assert_raises(TypeError, np.timedelta64, a, 'h')
+        a = np.timedelta64(1, 'Y')
+        assert_raises(TypeError, np.timedelta64, a, 'D')
+        assert_raises(TypeError, np.timedelta64, a, 'm')
+        a = datetime.timedelta(seconds=3)
+        assert_raises(TypeError, np.timedelta64, a, 'M')
+        assert_raises(TypeError, np.timedelta64, a, 'Y')
+        a = datetime.timedelta(weeks=3)
+        assert_raises(TypeError, np.timedelta64, a, 'M')
+        assert_raises(TypeError, np.timedelta64, a, 'Y')
+        a = datetime.timedelta()
+        assert_raises(TypeError, np.timedelta64, a, 'M')
+        assert_raises(TypeError, np.timedelta64, a, 'Y')
+
+    def test_timedelta_object_array_conversion(self):
+        # Regression test for gh-11096
+        inputs = [datetime.timedelta(28),
+                  datetime.timedelta(30),
+                  datetime.timedelta(31)]
+        expected = np.array([28, 30, 31], dtype='timedelta64[D]')
+        actual = np.array(inputs, dtype='timedelta64[D]')
+        assert_equal(expected, actual)
+
+    def test_timedelta_0_dim_object_array_conversion(self):
+        # Regression test for gh-11151
+        test = np.array(datetime.timedelta(seconds=20))
+        actual = test.astype(np.timedelta64)
+        # expected value from the array constructor workaround
+        # described in above issue
+        expected = np.array(datetime.timedelta(seconds=20),
+                            np.timedelta64)
+        assert_equal(actual, expected)
+
+    def test_timedelta_nat_format(self):
+        # gh-17552
+        assert_equal('NaT', f'{np.timedelta64("nat")}')
+
+    def test_timedelta_scalar_construction_units(self):
+        # String construction detecting units
+        assert_equal(np.datetime64('2010').dtype,
+                     np.dtype('M8[Y]'))
+        assert_equal(np.datetime64('2010-03').dtype,
+                     np.dtype('M8[M]'))
+        assert_equal(np.datetime64('2010-03-12').dtype,
+                     np.dtype('M8[D]'))
+        assert_equal(np.datetime64('2010-03-12T17').dtype,
+                     np.dtype('M8[h]'))
+        assert_equal(np.datetime64('2010-03-12T17:15').dtype,
+                     np.dtype('M8[m]'))
+        assert_equal(np.datetime64('2010-03-12T17:15:08').dtype,
+                     np.dtype('M8[s]'))
+
+        assert_equal(np.datetime64('2010-03-12T17:15:08.1').dtype,
+                     np.dtype('M8[ms]'))
+        assert_equal(np.datetime64('2010-03-12T17:15:08.12').dtype,
+                     np.dtype('M8[ms]'))
+        assert_equal(np.datetime64('2010-03-12T17:15:08.123').dtype,
+                     np.dtype('M8[ms]'))
+
+        assert_equal(np.datetime64('2010-03-12T17:15:08.1234').dtype,
+                     np.dtype('M8[us]'))
+        assert_equal(np.datetime64('2010-03-12T17:15:08.12345').dtype,
+                     np.dtype('M8[us]'))
+        assert_equal(np.datetime64('2010-03-12T17:15:08.123456').dtype,
+                     np.dtype('M8[us]'))
+
+        assert_equal(np.datetime64('1970-01-01T00:00:02.1234567').dtype,
+                     np.dtype('M8[ns]'))
+        assert_equal(np.datetime64('1970-01-01T00:00:02.12345678').dtype,
+                     np.dtype('M8[ns]'))
+        assert_equal(np.datetime64('1970-01-01T00:00:02.123456789').dtype,
+                     np.dtype('M8[ns]'))
+
+        assert_equal(np.datetime64('1970-01-01T00:00:02.1234567890').dtype,
+                     np.dtype('M8[ps]'))
+        assert_equal(np.datetime64('1970-01-01T00:00:02.12345678901').dtype,
+                     np.dtype('M8[ps]'))
+        assert_equal(np.datetime64('1970-01-01T00:00:02.123456789012').dtype,
+                     np.dtype('M8[ps]'))
+
+        assert_equal(np.datetime64(
+                     '1970-01-01T00:00:02.1234567890123').dtype,
+                     np.dtype('M8[fs]'))
+        assert_equal(np.datetime64(
+                     '1970-01-01T00:00:02.12345678901234').dtype,
+                     np.dtype('M8[fs]'))
+        assert_equal(np.datetime64(
+                     '1970-01-01T00:00:02.123456789012345').dtype,
+                     np.dtype('M8[fs]'))
+
+        assert_equal(np.datetime64(
+                    '1970-01-01T00:00:02.1234567890123456').dtype,
+                     np.dtype('M8[as]'))
+        assert_equal(np.datetime64(
+                    '1970-01-01T00:00:02.12345678901234567').dtype,
+                     np.dtype('M8[as]'))
+        assert_equal(np.datetime64(
+                    '1970-01-01T00:00:02.123456789012345678').dtype,
+                     np.dtype('M8[as]'))
+
+        # Python date object
+        assert_equal(np.datetime64(datetime.date(2010, 4, 16)).dtype,
+                     np.dtype('M8[D]'))
+
+        # Python datetime object
+        assert_equal(np.datetime64(
+                        datetime.datetime(2010, 4, 16, 13, 45, 18)).dtype,
+                     np.dtype('M8[us]'))
+
+        # 'today' special value
+        assert_equal(np.datetime64('today').dtype,
+                     np.dtype('M8[D]'))
+
+        # 'now' special value
+        assert_equal(np.datetime64('now').dtype,
+                     np.dtype('M8[s]'))
+
+    def test_datetime_nat_casting(self):
+        a = np.array('NaT', dtype='M8[D]')
+        b = np.datetime64('NaT', '[D]')
+
+        # Arrays
+        assert_equal(a.astype('M8[s]'), np.array('NaT', dtype='M8[s]'))
+        assert_equal(a.astype('M8[ms]'), np.array('NaT', dtype='M8[ms]'))
+        assert_equal(a.astype('M8[M]'), np.array('NaT', dtype='M8[M]'))
+        assert_equal(a.astype('M8[Y]'), np.array('NaT', dtype='M8[Y]'))
+        assert_equal(a.astype('M8[W]'), np.array('NaT', dtype='M8[W]'))
+
+        # Scalars -> Scalars
+        assert_equal(np.datetime64(b, '[s]'), np.datetime64('NaT', '[s]'))
+        assert_equal(np.datetime64(b, '[ms]'), np.datetime64('NaT', '[ms]'))
+        assert_equal(np.datetime64(b, '[M]'), np.datetime64('NaT', '[M]'))
+        assert_equal(np.datetime64(b, '[Y]'), np.datetime64('NaT', '[Y]'))
+        assert_equal(np.datetime64(b, '[W]'), np.datetime64('NaT', '[W]'))
+
+        # Arrays -> Scalars
+        assert_equal(np.datetime64(a, '[s]'), np.datetime64('NaT', '[s]'))
+        assert_equal(np.datetime64(a, '[ms]'), np.datetime64('NaT', '[ms]'))
+        assert_equal(np.datetime64(a, '[M]'), np.datetime64('NaT', '[M]'))
+        assert_equal(np.datetime64(a, '[Y]'), np.datetime64('NaT', '[Y]'))
+        assert_equal(np.datetime64(a, '[W]'), np.datetime64('NaT', '[W]'))
+
+        # NaN -> NaT
+        nan = np.array([np.nan] * 8 + [0])
+        fnan = nan.astype('f')
+        lnan = nan.astype('g')
+        cnan = nan.astype('D')
+        cfnan = nan.astype('F')
+        clnan = nan.astype('G')
+        hnan = nan.astype(np.half)
+
+        nat = np.array([np.datetime64('NaT')] * 8 + [np.datetime64(0, 'D')])
+        assert_equal(nan.astype('M8[ns]'), nat)
+        assert_equal(fnan.astype('M8[ns]'), nat)
+        assert_equal(lnan.astype('M8[ns]'), nat)
+        assert_equal(cnan.astype('M8[ns]'), nat)
+        assert_equal(cfnan.astype('M8[ns]'), nat)
+        assert_equal(clnan.astype('M8[ns]'), nat)
+        assert_equal(hnan.astype('M8[ns]'), nat)
+
+        nat = np.array([np.timedelta64('NaT')] * 8 + [np.timedelta64(0)])
+        assert_equal(nan.astype('timedelta64[ns]'), nat)
+        assert_equal(fnan.astype('timedelta64[ns]'), nat)
+        assert_equal(lnan.astype('timedelta64[ns]'), nat)
+        assert_equal(cnan.astype('timedelta64[ns]'), nat)
+        assert_equal(cfnan.astype('timedelta64[ns]'), nat)
+        assert_equal(clnan.astype('timedelta64[ns]'), nat)
+        assert_equal(hnan.astype('timedelta64[ns]'), nat)
+
+    def test_days_creation(self):
+        assert_equal(np.array('1599', dtype='M8[D]').astype('i8'),
+                (1600 - 1970) * 365 - (1972 - 1600) / 4 + 3 - 365)
+        assert_equal(np.array('1600', dtype='M8[D]').astype('i8'),
+                (1600 - 1970) * 365 - (1972 - 1600) / 4 + 3)
+        assert_equal(np.array('1601', dtype='M8[D]').astype('i8'),
+                (1600 - 1970) * 365 - (1972 - 1600) / 4 + 3 + 366)
+        assert_equal(np.array('1900', dtype='M8[D]').astype('i8'),
+                (1900 - 1970) * 365 - (1970 - 1900) // 4)
+        assert_equal(np.array('1901', dtype='M8[D]').astype('i8'),
+                (1900 - 1970) * 365 - (1970 - 1900) // 4 + 365)
+        assert_equal(np.array('1967', dtype='M8[D]').astype('i8'), -3 * 365 - 1)
+        assert_equal(np.array('1968', dtype='M8[D]').astype('i8'), -2 * 365 - 1)
+        assert_equal(np.array('1969', dtype='M8[D]').astype('i8'), -1 * 365)
+        assert_equal(np.array('1970', dtype='M8[D]').astype('i8'), 0 * 365)
+        assert_equal(np.array('1971', dtype='M8[D]').astype('i8'), 1 * 365)
+        assert_equal(np.array('1972', dtype='M8[D]').astype('i8'), 2 * 365)
+        assert_equal(np.array('1973', dtype='M8[D]').astype('i8'), 3 * 365 + 1)
+        assert_equal(np.array('1974', dtype='M8[D]').astype('i8'), 4 * 365 + 1)
+        assert_equal(np.array('2000', dtype='M8[D]').astype('i8'),
+                 (2000 - 1970) * 365 + (2000 - 1972) // 4)
+        assert_equal(np.array('2001', dtype='M8[D]').astype('i8'),
+                 (2000 - 1970) * 365 + (2000 - 1972) // 4 + 366)
+        assert_equal(np.array('2400', dtype='M8[D]').astype('i8'),
+                 (2400 - 1970) * 365 + (2400 - 1972) // 4 - 3)
+        assert_equal(np.array('2401', dtype='M8[D]').astype('i8'),
+                 (2400 - 1970) * 365 + (2400 - 1972) // 4 - 3 + 366)
+
+        assert_equal(np.array('1600-02-29', dtype='M8[D]').astype('i8'),
+                (1600 - 1970) * 365 - (1972 - 1600) // 4 + 3 + 31 + 28)
+        assert_equal(np.array('1600-03-01', dtype='M8[D]').astype('i8'),
+                (1600 - 1970) * 365 - (1972 - 1600) // 4 + 3 + 31 + 29)
+        assert_equal(np.array('2000-02-29', dtype='M8[D]').astype('i8'),
+                 (2000 - 1970) * 365 + (2000 - 1972) // 4 + 31 + 28)
+        assert_equal(np.array('2000-03-01', dtype='M8[D]').astype('i8'),
+                 (2000 - 1970) * 365 + (2000 - 1972) // 4 + 31 + 29)
+        assert_equal(np.array('2001-03-22', dtype='M8[D]').astype('i8'),
+                 (2000 - 1970) * 365 + (2000 - 1972) // 4 + 366 + 31 + 28 + 21)
+
+    def test_days_to_pydate(self):
+        assert_equal(np.array('1599', dtype='M8[D]').astype('O'),
+                    datetime.date(1599, 1, 1))
+        assert_equal(np.array('1600', dtype='M8[D]').astype('O'),
+                    datetime.date(1600, 1, 1))
+        assert_equal(np.array('1601', dtype='M8[D]').astype('O'),
+                    datetime.date(1601, 1, 1))
+        assert_equal(np.array('1900', dtype='M8[D]').astype('O'),
+                    datetime.date(1900, 1, 1))
+        assert_equal(np.array('1901', dtype='M8[D]').astype('O'),
+                    datetime.date(1901, 1, 1))
+        assert_equal(np.array('2000', dtype='M8[D]').astype('O'),
+                    datetime.date(2000, 1, 1))
+        assert_equal(np.array('2001', dtype='M8[D]').astype('O'),
+                    datetime.date(2001, 1, 1))
+        assert_equal(np.array('1600-02-29', dtype='M8[D]').astype('O'),
+                    datetime.date(1600, 2, 29))
+        assert_equal(np.array('1600-03-01', dtype='M8[D]').astype('O'),
+                    datetime.date(1600, 3, 1))
+        assert_equal(np.array('2001-03-22', dtype='M8[D]').astype('O'),
+                    datetime.date(2001, 3, 22))
+
+    def test_dtype_comparison(self):
+        assert_(not (np.dtype('M8[us]') == np.dtype('M8[ms]')))
+        assert_(np.dtype('M8[us]') != np.dtype('M8[ms]'))
+        assert_(np.dtype('M8[2D]') != np.dtype('M8[D]'))
+        assert_(np.dtype('M8[D]') != np.dtype('M8[2D]'))
+
+    def test_pydatetime_creation(self):
+        a = np.array(['1960-03-12', datetime.date(1960, 3, 12)], dtype='M8[D]')
+        assert_equal(a[0], a[1])
+        a = np.array(['1999-12-31', datetime.date(1999, 12, 31)], dtype='M8[D]')
+        assert_equal(a[0], a[1])
+        a = np.array(['2000-01-01', datetime.date(2000, 1, 1)], dtype='M8[D]')
+        assert_equal(a[0], a[1])
+        # Will fail if the date changes during the exact right moment
+        a = np.array(['today', datetime.date.today()], dtype='M8[D]')
+        assert_equal(a[0], a[1])
+        # datetime.datetime.now() returns local time, not UTC
+        #a = np.array(['now', datetime.datetime.now()], dtype='M8[s]')
+        #assert_equal(a[0], a[1])
+
+        # we can give a datetime.date time units
+        assert_equal(np.array(datetime.date(1960, 3, 12), dtype='M8[s]'),
+                     np.array(np.datetime64('1960-03-12T00:00:00')))
+
+    def test_datetime_string_conversion(self):
+        a = ['2011-03-16', '1920-01-01', '2013-05-19']
+        str_a = np.array(a, dtype='S')
+        uni_a = np.array(a, dtype='U')
+        dt_a = np.array(a, dtype='M')
+
+        # String to datetime
+        assert_equal(dt_a, str_a.astype('M'))
+        assert_equal(dt_a.dtype, str_a.astype('M').dtype)
+        dt_b = np.empty_like(dt_a)
+        dt_b[...] = str_a
+        assert_equal(dt_a, dt_b)
+
+        # Datetime to string
+        assert_equal(str_a, dt_a.astype('S0'))
+        str_b = np.empty_like(str_a)
+        str_b[...] = dt_a
+        assert_equal(str_a, str_b)
+
+        # Unicode to datetime
+        assert_equal(dt_a, uni_a.astype('M'))
+        assert_equal(dt_a.dtype, uni_a.astype('M').dtype)
+        dt_b = np.empty_like(dt_a)
+        dt_b[...] = uni_a
+        assert_equal(dt_a, dt_b)
+
+        # Datetime to unicode
+        assert_equal(uni_a, dt_a.astype('U'))
+        uni_b = np.empty_like(uni_a)
+        uni_b[...] = dt_a
+        assert_equal(uni_a, uni_b)
+
+        # Datetime to long string - gh-9712
+        assert_equal(str_a, dt_a.astype((np.bytes_, 128)))
+        str_b = np.empty(str_a.shape, dtype=(np.bytes_, 128))
+        str_b[...] = dt_a
+        assert_equal(str_a, str_b)
+
+    @pytest.mark.parametrize("time_dtype", ["m8[D]", "M8[Y]"])
+    def test_time_byteswapping(self, time_dtype):
+        times = np.array(["2017", "NaT"], dtype=time_dtype)
+        times_swapped = times.astype(times.dtype.newbyteorder())
+        assert_array_equal(times, times_swapped)
+
+        unswapped = times_swapped.view(np.dtype("int64").newbyteorder())
+        assert_array_equal(unswapped, times.view(np.int64))
+
+    @pytest.mark.parametrize(["time1", "time2"],
+            [("M8[s]", "M8[D]"), ("m8[s]", "m8[ns]")])
+    def test_time_byteswapped_cast(self, time1, time2):
+        dtype1 = np.dtype(time1)
+        dtype2 = np.dtype(time2)
+        times = np.array(["2017", "NaT"], dtype=dtype1)
+        expected = times.astype(dtype2)
+
+        # Test that every byte-swapping combination also returns the same
+        # results (previous tests check that this comparison works fine).
+        res = times.astype(dtype1.newbyteorder()).astype(dtype2)
+        assert_array_equal(res, expected)
+        res = times.astype(dtype2.newbyteorder())
+        assert_array_equal(res, expected)
+        res = times.astype(dtype1.newbyteorder()).astype(dtype2.newbyteorder())
+        assert_array_equal(res, expected)
+
+    @pytest.mark.parametrize("time_dtype", ["m8[D]", "M8[Y]"])
+    @pytest.mark.parametrize("str_dtype", ["U", "S"])
+    def test_datetime_conversions_byteorders(self, str_dtype, time_dtype):
+        times = np.array(["2017", "NaT"], dtype=time_dtype)
+        # Unfortunately, timedelta does not roundtrip:
+        from_strings = np.array(["2017", "NaT"], dtype=str_dtype)
+        to_strings = times.astype(str_dtype)  # assume this is correct
+
+        # Check that conversion from times to string works if src is swapped:
+        times_swapped = times.astype(times.dtype.newbyteorder())
+        res = times_swapped.astype(str_dtype)
+        assert_array_equal(res, to_strings)
+        # And also if both are swapped:
+        res = times_swapped.astype(to_strings.dtype.newbyteorder())
+        assert_array_equal(res, to_strings)
+        # only destination is swapped:
+        res = times.astype(to_strings.dtype.newbyteorder())
+        assert_array_equal(res, to_strings)
+
+        # Check that conversion from string to times works if src is swapped:
+        from_strings_swapped = from_strings.astype(
+                from_strings.dtype.newbyteorder())
+        res = from_strings_swapped.astype(time_dtype)
+        assert_array_equal(res, times)
+        # And if both are swapped:
+        res = from_strings_swapped.astype(times.dtype.newbyteorder())
+        assert_array_equal(res, times)
+        # Only destination is swapped:
+        res = from_strings.astype(times.dtype.newbyteorder())
+        assert_array_equal(res, times)
+
+    def test_datetime_array_str(self):
+        a = np.array(['2011-03-16', '1920-01-01', '2013-05-19'], dtype='M')
+        assert_equal(str(a), "['2011-03-16' '1920-01-01' '2013-05-19']")
+
+        a = np.array(['2011-03-16T13:55', '1920-01-01T03:12'], dtype='M')
+        assert_equal(np.array2string(a, separator=', ',
+                    formatter={'datetime': lambda x:
+                            f"'{np.datetime_as_string(x, timezone='UTC')}'"}),
+                     "['2011-03-16T13:55Z', '1920-01-01T03:12Z']")
+
+        # Check that one NaT doesn't corrupt subsequent entries
+        a = np.array(['2010', 'NaT', '2030']).astype('M')
+        assert_equal(str(a), "['2010'  'NaT' '2030']")
+
+    def test_timedelta_array_str(self):
+        a = np.array([-1, 0, 100], dtype='m')
+        assert_equal(str(a), "[ -1   0 100]")
+        a = np.array(['NaT', 'NaT'], dtype='m')
+        assert_equal(str(a), "['NaT' 'NaT']")
+        # Check right-alignment with NaTs
+        a = np.array([-1, 'NaT', 0], dtype='m')
+        assert_equal(str(a), "[   -1 'NaT'     0]")
+        a = np.array([-1, 'NaT', 1234567], dtype='m')
+        assert_equal(str(a), "[     -1   'NaT' 1234567]")
+
+        # Test with other byteorder:
+        a = np.array([-1, 'NaT', 1234567], dtype='>m')
+        assert_equal(str(a), "[     -1   'NaT' 1234567]")
+        a = np.array([-1, 'NaT', 1234567], dtype='<m')
+        assert_equal(str(a), "[     -1   'NaT' 1234567]")
+
+    def test_timedelta_array_with_nats(self):
+        # Regression test for gh-29497.
+        x = np.array([np.timedelta64('nat'),
+                      np.timedelta64('nat', 's'),
+                      np.timedelta64('nat', 'ms'),
+                      np.timedelta64(123, 'ms')])
+        for td in x[:3]:
+            assert np.isnat(td)
+
+    def test_timedelta_array_nat_assignment(self):
+        # Regression test for gh-29497.
+        x = np.zeros(3, dtype='m8[ms]')
+        x[1] = np.timedelta64('nat', 's')
+        assert np.isnat(x[1])
+
+    def test_pickle(self):
+        # Check that pickle roundtripping works
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            dt = np.dtype('M8[7D]')
+            assert_equal(pickle.loads(pickle.dumps(dt, protocol=proto)), dt)
+            dt = np.dtype('M8[W]')
+            assert_equal(pickle.loads(pickle.dumps(dt, protocol=proto)), dt)
+            scalar = np.datetime64('2016-01-01T00:00:00.000000000')
+            assert_equal(pickle.loads(pickle.dumps(scalar, protocol=proto)),
+                         scalar)
+            delta = scalar - np.datetime64('2015-01-01T00:00:00.000000000')
+            assert_equal(pickle.loads(pickle.dumps(delta, protocol=proto)),
+                         delta)
+
+        # Check that loading pickles from 1.6 works
+        with pytest.warns(np.exceptions.VisibleDeprecationWarning,
+                match=r".*align should be passed"):
+            pkl = b"cnumpy\ndtype\np0\n(S'M8'\np1\nI0\nI1\ntp2\nRp3\n"\
+                b"(I4\nS'<'\np4\nNNNI-1\nI-1\nI0\n((dp5\n(S'D'\np6\n"\
+                b"I7\nI1\nI1\ntp7\ntp8\ntp9\nb."
+            assert_equal(pickle.loads(pkl), np.dtype('<M8[7D]'))
+            pkl = b"cnumpy\ndtype\np0\n(S'M8'\np1\nI0\nI1\ntp2\nRp3\n"\
+                b"(I4\nS'<'\np4\nNNNI-1\nI-1\nI0\n((dp5\n(S'W'\np6\n"\
+                b"I1\nI1\nI1\ntp7\ntp8\ntp9\nb."
+            assert_equal(pickle.loads(pkl), np.dtype('<M8[W]'))
+            pkl = b"cnumpy\ndtype\np0\n(S'M8'\np1\nI0\nI1\ntp2\nRp3\n"\
+                b"(I4\nS'>'\np4\nNNNI-1\nI-1\nI0\n((dp5\n(S'us'\np6\n"\
+                b"I1\nI1\nI1\ntp7\ntp8\ntp9\nb."
+            assert_equal(pickle.loads(pkl), np.dtype('>M8[us]'))
+
+    def test_gh_29555(self):
+        # check that dtype metadata round-trips when none
+        dt = np.dtype('>M8[us]')
+        assert dt.metadata is None
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            res = pickle.loads(pickle.dumps(dt, protocol=proto))
+            assert_equal(res, dt)
+            assert res.metadata is None
+
+    def test_setstate(self):
+        "Verify that datetime dtype __setstate__ can handle bad arguments"
+        dt = np.dtype('>M8[us]')
+        assert_raises(ValueError, dt.__setstate__,
+                      (4, '>', None, None, None, -1, -1, 0, 1))
+        assert_(dt.__reduce__()[2] == np.dtype('>M8[us]').__reduce__()[2])
+        assert_raises(TypeError, dt.__setstate__,
+                      (4, '>', None, None, None, -1, -1, 0, ({}, 'xxx')))
+        assert_(dt.__reduce__()[2] == np.dtype('>M8[us]').__reduce__()[2])
+
+    def test_dtype_promotion(self):
+        # datetime <op> datetime computes the metadata gcd
+        # timedelta <op> timedelta computes the metadata gcd
+        for mM in ['m', 'M']:
+            assert_equal(
+                np.promote_types(np.dtype(mM + '8[2Y]'), np.dtype(mM + '8[2Y]')),
+                np.dtype(mM + '8[2Y]'))
+            assert_equal(
+                np.promote_types(np.dtype(mM + '8[12Y]'), np.dtype(mM + '8[15Y]')),
+                np.dtype(mM + '8[3Y]'))
+            assert_equal(
+                np.promote_types(np.dtype(mM + '8[62M]'), np.dtype(mM + '8[24M]')),
+                np.dtype(mM + '8[2M]'))
+            assert_equal(
+                np.promote_types(np.dtype(mM + '8[1W]'), np.dtype(mM + '8[2D]')),
+                np.dtype(mM + '8[1D]'))
+            assert_equal(
+                np.promote_types(np.dtype(mM + '8[W]'), np.dtype(mM + '8[13s]')),
+                np.dtype(mM + '8[s]'))
+            assert_equal(
+                np.promote_types(np.dtype(mM + '8[13W]'), np.dtype(mM + '8[49s]')),
+                np.dtype(mM + '8[7s]'))
+        # timedelta <op> timedelta raises when there is no reasonable gcd
+        assert_raises(TypeError, np.promote_types,
+                            np.dtype('m8[Y]'), np.dtype('m8[D]'))
+        assert_raises(TypeError, np.promote_types,
+                            np.dtype('m8[M]'), np.dtype('m8[W]'))
+        # timedelta and float cannot be safely cast with each other
+        assert_raises(TypeError, np.promote_types, "float32", "m8")
+        assert_raises(TypeError, np.promote_types, "m8", "float32")
+        assert_raises(TypeError, np.promote_types, "uint64", "m8")
+        assert_raises(TypeError, np.promote_types, "m8", "uint64")
+
+        # timedelta <op> timedelta may overflow with big unit ranges
+        assert_raises(OverflowError, np.promote_types,
+                            np.dtype('m8[W]'), np.dtype('m8[fs]'))
+        assert_raises(OverflowError, np.promote_types,
+                            np.dtype('m8[s]'), np.dtype('m8[as]'))
+
+    def test_cast_overflow(self):
+        # gh-4486
+        def cast():
+            numpy.datetime64("1971-01-01 00:00:00.000000000000000").astype("<M8[D]")
+        assert_raises(OverflowError, cast)
+
+        def cast2():
+            numpy.datetime64("2014").astype("<M8[fs]")
+        assert_raises(OverflowError, cast2)
+
+    def test_pyobject_roundtrip(self):
+        # All datetime types should be able to roundtrip through object
+        a = np.array([0, 0, 0, 0, 0, 0, 0, 0, 0,
+                      -1020040340, -2942398, -1, 0, 1, 234523453, 1199164176],
+                                                        dtype=np.int64)
+        # With date units
+        for unit in ['M8[D]', 'M8[W]', 'M8[M]', 'M8[Y]']:
+            b = a.copy().view(dtype=unit)
+            b[0] = '-0001-01-01'
+            b[1] = '-0001-12-31'
+            b[2] = '0000-01-01'
+            b[3] = '0001-01-01'
+            b[4] = '1969-12-31'
+            b[5] = '1970-01-01'
+            b[6] = '9999-12-31'
+            b[7] = '10000-01-01'
+            b[8] = 'NaT'
+
+            assert_equal(b.astype(object).astype(unit), b,
+                            f"Error roundtripping unit {unit}")
+        # With time units
+        for unit in ['M8[as]', 'M8[16fs]', 'M8[ps]', 'M8[us]',
+                     'M8[300as]', 'M8[20us]']:
+            b = a.copy().view(dtype=unit)
+            b[0] = '-0001-01-01T00'
+            b[1] = '-0001-12-31T00'
+            b[2] = '0000-01-01T00'
+            b[3] = '0001-01-01T00'
+            b[4] = '1969-12-31T23:59:59.999999'
+            b[5] = '1970-01-01T00'
+            b[6] = '9999-12-31T23:59:59.999999'
+            b[7] = '10000-01-01T00'
+            b[8] = 'NaT'
+
+            assert_equal(b.astype(object).astype(unit), b,
+                            f"Error roundtripping unit {unit}")
+
+    def test_month_truncation(self):
+        # Make sure that months are truncating correctly
+        assert_equal(np.array('1945-03-01', dtype='M8[M]'),
+                     np.array('1945-03-31', dtype='M8[M]'))
+        assert_equal(np.array('1969-11-01', dtype='M8[M]'),
+             np.array('1969-11-30T23:59:59.99999', dtype='M').astype('M8[M]'))
+        assert_equal(np.array('1969-12-01', dtype='M8[M]'),
+             np.array('1969-12-31T23:59:59.99999', dtype='M').astype('M8[M]'))
+        assert_equal(np.array('1970-01-01', dtype='M8[M]'),
+             np.array('1970-01-31T23:59:59.99999', dtype='M').astype('M8[M]'))
+        assert_equal(np.array('1980-02-01', dtype='M8[M]'),
+             np.array('1980-02-29T23:59:59.99999', dtype='M').astype('M8[M]'))
+
+    def test_different_unit_comparison(self):
+        # Check some years with date units
+        for unit1 in ['Y', 'M', 'D']:
+            dt1 = np.dtype(f'M8[{unit1}]')
+            for unit2 in ['Y', 'M', 'D']:
+                dt2 = np.dtype(f'M8[{unit2}]')
+                assert_equal(np.array('1945', dtype=dt1),
+                             np.array('1945', dtype=dt2))
+                assert_equal(np.array('1970', dtype=dt1),
+                             np.array('1970', dtype=dt2))
+                assert_equal(np.array('9999', dtype=dt1),
+                             np.array('9999', dtype=dt2))
+                assert_equal(np.array('10000', dtype=dt1),
+                             np.array('10000-01-01', dtype=dt2))
+                assert_equal(np.datetime64('1945', unit1),
+                             np.datetime64('1945', unit2))
+                assert_equal(np.datetime64('1970', unit1),
+                             np.datetime64('1970', unit2))
+                assert_equal(np.datetime64('9999', unit1),
+                             np.datetime64('9999', unit2))
+                assert_equal(np.datetime64('10000', unit1),
+                             np.datetime64('10000-01-01', unit2))
+        # Check some datetimes with time units
+        for unit1 in ['6h', 'h', 'm', 's', '10ms', 'ms', 'us']:
+            dt1 = np.dtype(f'M8[{unit1}]')
+            for unit2 in ['h', 'm', 's', 'ms', 'us']:
+                dt2 = np.dtype(f'M8[{unit2}]')
+                assert_equal(np.array('1945-03-12T18', dtype=dt1),
+                             np.array('1945-03-12T18', dtype=dt2))
+                assert_equal(np.array('1970-03-12T18', dtype=dt1),
+                             np.array('1970-03-12T18', dtype=dt2))
+                assert_equal(np.array('9999-03-12T18', dtype=dt1),
+                             np.array('9999-03-12T18', dtype=dt2))
+                assert_equal(np.array('10000-01-01T00', dtype=dt1),
+                             np.array('10000-01-01T00', dtype=dt2))
+                assert_equal(np.datetime64('1945-03-12T18', unit1),
+                             np.datetime64('1945-03-12T18', unit2))
+                assert_equal(np.datetime64('1970-03-12T18', unit1),
+                             np.datetime64('1970-03-12T18', unit2))
+                assert_equal(np.datetime64('9999-03-12T18', unit1),
+                             np.datetime64('9999-03-12T18', unit2))
+                assert_equal(np.datetime64('10000-01-01T00', unit1),
+                             np.datetime64('10000-01-01T00', unit2))
+        # Check some days with units that won't overflow
+        for unit1 in ['D', '12h', 'h', 'm', 's', '4s', 'ms', 'us']:
+            dt1 = np.dtype(f'M8[{unit1}]')
+            for unit2 in ['D', 'h', 'm', 's', 'ms', 'us']:
+                dt2 = np.dtype(f'M8[{unit2}]')
+                assert_(np.equal(np.array('1932-02-17', dtype='M').astype(dt1),
+                     np.array('1932-02-17T00:00:00', dtype='M').astype(dt2),
+                     casting='unsafe'))
+                assert_(np.equal(np.array('10000-04-27', dtype='M').astype(dt1),
+                     np.array('10000-04-27T00:00:00', dtype='M').astype(dt2),
+                     casting='unsafe'))
+
+        # Shouldn't be able to compare datetime and timedelta
+        a = np.array('2012-12-21', dtype='M8[D]')
+        b = np.array(3, dtype='m8[D]')
+        assert_raises(TypeError, np.less, a, b)
+        # not even if "unsafe"
+        assert_raises(TypeError, np.less, a, b, casting='unsafe')
+
+    def test_datetime_like(self):
+        a = np.array([3], dtype='m8[4D]')
+        b = np.array(['2012-12-21'], dtype='M8[D]')
+
+        assert_equal(np.ones_like(a).dtype, a.dtype)
+        assert_equal(np.zeros_like(a).dtype, a.dtype)
+        assert_equal(np.empty_like(a).dtype, a.dtype)
+        assert_equal(np.ones_like(b).dtype, b.dtype)
+        assert_equal(np.zeros_like(b).dtype, b.dtype)
+        assert_equal(np.empty_like(b).dtype, b.dtype)
+
+    def test_datetime_unary(self):
+        for tda, tdb, tdzero, tdone, tdmone in \
+                [
+                 # One-dimensional arrays
+                 (np.array([3], dtype='m8[D]'),
+                  np.array([-3], dtype='m8[D]'),
+                  np.array([0], dtype='m8[D]'),
+                  np.array([1], dtype='m8[D]'),
+                  np.array([-1], dtype='m8[D]')),
+                 # NumPy scalars
+                 (np.timedelta64(3, '[D]'),
+                  np.timedelta64(-3, '[D]'),
+                  np.timedelta64(0, '[D]'),
+                  np.timedelta64(1, '[D]'),
+                  np.timedelta64(-1, '[D]'))]:
+            # negative ufunc
+            assert_equal(-tdb, tda)
+            assert_equal((-tdb).dtype, tda.dtype)
+            assert_equal(np.negative(tdb), tda)
+            assert_equal(np.negative(tdb).dtype, tda.dtype)
+
+            # positive ufunc
+            assert_equal(np.positive(tda), tda)
+            assert_equal(np.positive(tda).dtype, tda.dtype)
+            assert_equal(np.positive(tdb), tdb)
+            assert_equal(np.positive(tdb).dtype, tdb.dtype)
+
+            # absolute ufunc
+            assert_equal(np.absolute(tdb), tda)
+            assert_equal(np.absolute(tdb).dtype, tda.dtype)
+
+            # sign ufunc
+            assert_equal(np.sign(tda), tdone)
+            assert_equal(np.sign(tdb), tdmone)
+            assert_equal(np.sign(tdzero), tdzero)
+            assert_equal(np.sign(tda).dtype, tda.dtype)
+
+            # The ufuncs always produce native-endian results
+            assert_
+
+    def test_datetime_add(self):
+        for dta, dtb, dtc, dtnat, tda, tdb, tdc in \
+                    [
+                     # One-dimensional arrays
+                     (np.array(['2012-12-21'], dtype='M8[D]'),
+                      np.array(['2012-12-24'], dtype='M8[D]'),
+                      np.array(['2012-12-21T11'], dtype='M8[h]'),
+                      np.array(['NaT'], dtype='M8[D]'),
+                      np.array([3], dtype='m8[D]'),
+                      np.array([11], dtype='m8[h]'),
+                      np.array([3 * 24 + 11], dtype='m8[h]')),
+                     # NumPy scalars
+                     (np.datetime64('2012-12-21', '[D]'),
+                      np.datetime64('2012-12-24', '[D]'),
+                      np.datetime64('2012-12-21T11', '[h]'),
+                      np.datetime64('NaT', '[D]'),
+                      np.timedelta64(3, '[D]'),
+                      np.timedelta64(11, '[h]'),
+                      np.timedelta64(3 * 24 + 11, '[h]'))]:
+            # m8 + m8
+            assert_equal(tda + tdb, tdc)
+            assert_equal((tda + tdb).dtype, np.dtype('m8[h]'))
+            # m8 + bool
+            assert_equal(tdb + True, tdb + 1)
+            assert_equal((tdb + True).dtype, np.dtype('m8[h]'))
+            # m8 + int
+            assert_equal(tdb + 3 * 24, tdc)
+            assert_equal((tdb + 3 * 24).dtype, np.dtype('m8[h]'))
+            # bool + m8
+            assert_equal(False + tdb, tdb)
+            assert_equal((False + tdb).dtype, np.dtype('m8[h]'))
+            # int + m8
+            assert_equal(3 * 24 + tdb, tdc)
+            assert_equal((3 * 24 + tdb).dtype, np.dtype('m8[h]'))
+            # M8 + bool
+            assert_equal(dta + True, dta + 1)
+            assert_equal(dtnat + True, dtnat)
+            assert_equal((dta + True).dtype, np.dtype('M8[D]'))
+            # M8 + int
+            assert_equal(dta + 3, dtb)
+            assert_equal(dtnat + 3, dtnat)
+            assert_equal((dta + 3).dtype, np.dtype('M8[D]'))
+            # bool + M8
+            assert_equal(False + dta, dta)
+            assert_equal(False + dtnat, dtnat)
+            assert_equal((False + dta).dtype, np.dtype('M8[D]'))
+            # int + M8
+            assert_equal(3 + dta, dtb)
+            assert_equal(3 + dtnat, dtnat)
+            assert_equal((3 + dta).dtype, np.dtype('M8[D]'))
+            # M8 + m8
+            assert_equal(dta + tda, dtb)
+            assert_equal(dtnat + tda, dtnat)
+            assert_equal((dta + tda).dtype, np.dtype('M8[D]'))
+            # m8 + M8
+            assert_equal(tda + dta, dtb)
+            assert_equal(tda + dtnat, dtnat)
+            assert_equal((tda + dta).dtype, np.dtype('M8[D]'))
+
+            # In M8 + m8, the result goes to higher precision
+            assert_equal(np.add(dta, tdb, casting='unsafe'), dtc)
+            assert_equal(np.add(dta, tdb, casting='unsafe').dtype,
+                         np.dtype('M8[h]'))
+            assert_equal(np.add(tdb, dta, casting='unsafe'), dtc)
+            assert_equal(np.add(tdb, dta, casting='unsafe').dtype,
+                         np.dtype('M8[h]'))
+
+            # M8 + M8
+            assert_raises(TypeError, np.add, dta, dtb)
+
+    def test_datetime_subtract(self):
+        for dta, dtb, dtc, dtd, dte, dtnat, tda, tdb, tdc in \
+                    [
+                     # One-dimensional arrays
+                     (np.array(['2012-12-21'], dtype='M8[D]'),
+                      np.array(['2012-12-24'], dtype='M8[D]'),
+                      np.array(['1940-12-24'], dtype='M8[D]'),
+                      np.array(['1940-12-24T00'], dtype='M8[h]'),
+                      np.array(['1940-12-23T13'], dtype='M8[h]'),
+                      np.array(['NaT'], dtype='M8[D]'),
+                      np.array([3], dtype='m8[D]'),
+                      np.array([11], dtype='m8[h]'),
+                      np.array([3 * 24 - 11], dtype='m8[h]')),
+                     # NumPy scalars
+                     (np.datetime64('2012-12-21', '[D]'),
+                      np.datetime64('2012-12-24', '[D]'),
+                      np.datetime64('1940-12-24', '[D]'),
+                      np.datetime64('1940-12-24T00', '[h]'),
+                      np.datetime64('1940-12-23T13', '[h]'),
+                      np.datetime64('NaT', '[D]'),
+                      np.timedelta64(3, '[D]'),
+                      np.timedelta64(11, '[h]'),
+                      np.timedelta64(3 * 24 - 11, '[h]'))]:
+            # m8 - m8
+            assert_equal(tda - tdb, tdc)
+            assert_equal((tda - tdb).dtype, np.dtype('m8[h]'))
+            assert_equal(tdb - tda, -tdc)
+            assert_equal((tdb - tda).dtype, np.dtype('m8[h]'))
+            # m8 - bool
+            assert_equal(tdc - True, tdc - 1)
+            assert_equal((tdc - True).dtype, np.dtype('m8[h]'))
+            # m8 - int
+            assert_equal(tdc - 3 * 24, -tdb)
+            assert_equal((tdc - 3 * 24).dtype, np.dtype('m8[h]'))
+            # int - m8
+            assert_equal(False - tdb, -tdb)
+            assert_equal((False - tdb).dtype, np.dtype('m8[h]'))
+            # int - m8
+            assert_equal(3 * 24 - tdb, tdc)
+            assert_equal((3 * 24 - tdb).dtype, np.dtype('m8[h]'))
+            # M8 - bool
+            assert_equal(dtb - True, dtb - 1)
+            assert_equal(dtnat - True, dtnat)
+            assert_equal((dtb - True).dtype, np.dtype('M8[D]'))
+            # M8 - int
+            assert_equal(dtb - 3, dta)
+            assert_equal(dtnat - 3, dtnat)
+            assert_equal((dtb - 3).dtype, np.dtype('M8[D]'))
+            # M8 - m8
+            assert_equal(dtb - tda, dta)
+            assert_equal(dtnat - tda, dtnat)
+            assert_equal((dtb - tda).dtype, np.dtype('M8[D]'))
+
+            # In M8 - m8, the result goes to higher precision
+            assert_equal(np.subtract(dtc, tdb, casting='unsafe'), dte)
+            assert_equal(np.subtract(dtc, tdb, casting='unsafe').dtype,
+                         np.dtype('M8[h]'))
+
+            # M8 - M8 with different goes to higher precision
+            assert_equal(np.subtract(dtc, dtd, casting='unsafe'),
+                         np.timedelta64(0, 'h'))
+            assert_equal(np.subtract(dtc, dtd, casting='unsafe').dtype,
+                         np.dtype('m8[h]'))
+            assert_equal(np.subtract(dtd, dtc, casting='unsafe'),
+                         np.timedelta64(0, 'h'))
+            assert_equal(np.subtract(dtd, dtc, casting='unsafe').dtype,
+                         np.dtype('m8[h]'))
+
+            # m8 - M8
+            assert_raises(TypeError, np.subtract, tda, dta)
+            # bool - M8
+            assert_raises(TypeError, np.subtract, False, dta)
+            # int - M8
+            assert_raises(TypeError, np.subtract, 3, dta)
+
+    def test_datetime_multiply(self):
+        for dta, tda, tdb, tdc in \
+                    [
+                     # One-dimensional arrays
+                     (np.array(['2012-12-21'], dtype='M8[D]'),
+                      np.array([6], dtype='m8[h]'),
+                      np.array([9], dtype='m8[h]'),
+                      np.array([12], dtype='m8[h]')),
+                     # NumPy scalars
+                     (np.datetime64('2012-12-21', '[D]'),
+                      np.timedelta64(6, '[h]'),
+                      np.timedelta64(9, '[h]'),
+                      np.timedelta64(12, '[h]'))]:
+            # m8 * int
+            assert_equal(tda * 2, tdc)
+            assert_equal((tda * 2).dtype, np.dtype('m8[h]'))
+            # int * m8
+            assert_equal(2 * tda, tdc)
+            assert_equal((2 * tda).dtype, np.dtype('m8[h]'))
+            # m8 * float
+            assert_equal(tda * 1.5, tdb)
+            assert_equal((tda * 1.5).dtype, np.dtype('m8[h]'))
+            # float * m8
+            assert_equal(1.5 * tda, tdb)
+            assert_equal((1.5 * tda).dtype, np.dtype('m8[h]'))
+
+            # m8 * m8
+            assert_raises(TypeError, np.multiply, tda, tdb)
+            # m8 * M8
+            assert_raises(TypeError, np.multiply, dta, tda)
+            # M8 * m8
+            assert_raises(TypeError, np.multiply, tda, dta)
+            # M8 * int
+            assert_raises(TypeError, np.multiply, dta, 2)
+            # int * M8
+            assert_raises(TypeError, np.multiply, 2, dta)
+            # M8 * float
+            assert_raises(TypeError, np.multiply, dta, 1.5)
+            # float * M8
+            assert_raises(TypeError, np.multiply, 1.5, dta)
+
+        # NaTs
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore', "invalid value encountered in multiply", RuntimeWarning)
+            nat = np.timedelta64('NaT')
+
+            def check(a, b, res):
+                assert_equal(a * b, res)
+                assert_equal(b * a, res)
+            for tp in (int, float):
+                check(nat, tp(2), nat)
+                check(nat, tp(0), nat)
+            for f in (float('inf'), float('nan')):
+                check(np.timedelta64(1), f, nat)
+                check(np.timedelta64(0), f, nat)
+                check(nat, f, nat)
+
+    @pytest.mark.parametrize("op1, op2, exp", [
+        # m8 same units round down
+        (np.timedelta64(7, 's'),
+         np.timedelta64(4, 's'),
+         1),
+        # m8 same units round down with negative
+        (np.timedelta64(7, 's'),
+         np.timedelta64(-4, 's'),
+         -2),
+        # m8 same units negative no round down
+        (np.timedelta64(8, 's'),
+         np.timedelta64(-4, 's'),
+         -2),
+        # m8 different units
+        (np.timedelta64(1, 'm'),
+         np.timedelta64(31, 's'),
+         1),
+        # m8 generic units
+        (np.timedelta64(1890),
+         np.timedelta64(31),
+         60),
+        # Y // M works
+        (np.timedelta64(2, 'Y'),
+         np.timedelta64('13', 'M'),
+         1),
+        # handle 1D arrays
+        (np.array([1, 2, 3], dtype='m8'),
+         np.array([2], dtype='m8'),
+         np.array([0, 1, 1], dtype=np.int64)),
+        ])
+    def test_timedelta_floor_divide(self, op1, op2, exp):
+        assert_equal(op1 // op2, exp)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("op1, op2", [
+        # div by 0
+        (np.timedelta64(10, 'us'),
+         np.timedelta64(0, 'us')),
+        # div with NaT
+        (np.timedelta64('NaT'),
+         np.timedelta64(50, 'us')),
+        # special case for int64 min
+        # in integer floor division
+        (np.timedelta64(np.iinfo(np.int64).min),
+         np.timedelta64(-1)),
+        ])
+    def test_timedelta_floor_div_warnings(self, op1, op2):
+        with pytest.warns(RuntimeWarning):
+            actual = op1 // op2
+            assert_equal(actual, 0)
+            assert_equal(actual.dtype, np.int64)
+
+    @pytest.mark.parametrize("val1, val2", [
+        # the smallest integer that can't be represented
+        # exactly in a double should be preserved if we avoid
+        # casting to double in floordiv operation
+        (9007199254740993, 1),
+        # stress the alternate floordiv code path where
+        # operand signs don't match and remainder isn't 0
+        (9007199254740999, -2),
+        ])
+    def test_timedelta_floor_div_precision(self, val1, val2):
+        op1 = np.timedelta64(val1)
+        op2 = np.timedelta64(val2)
+        actual = op1 // op2
+        # Python reference integer floor
+        expected = val1 // val2
+        assert_equal(actual, expected)
+
+    @pytest.mark.parametrize("val1, val2", [
+        # years and months sometimes can't be unambiguously
+        # divided for floor division operation
+        (np.timedelta64(7, 'Y'),
+         np.timedelta64(3, 's')),
+        (np.timedelta64(7, 'M'),
+         np.timedelta64(1, 'D')),
+        ])
+    def test_timedelta_floor_div_error(self, val1, val2):
+        with assert_raises_regex(TypeError, "common metadata divisor"):
+            val1 // val2
+
+    @pytest.mark.parametrize("op1, op2", [
+        # reuse the test cases from floordiv
+        (np.timedelta64(7, 's'),
+         np.timedelta64(4, 's')),
+        # m8 same units round down with negative
+        (np.timedelta64(7, 's'),
+         np.timedelta64(-4, 's')),
+        # m8 same units negative no round down
+        (np.timedelta64(8, 's'),
+         np.timedelta64(-4, 's')),
+        # m8 different units
+        (np.timedelta64(1, 'm'),
+         np.timedelta64(31, 's')),
+        # m8 generic units
+        (np.timedelta64(1890),
+         np.timedelta64(31)),
+        # Y // M works
+        (np.timedelta64(2, 'Y'),
+         np.timedelta64('13', 'M')),
+        # handle 1D arrays
+        (np.array([1, 2, 3], dtype='m8'),
+         np.array([2], dtype='m8')),
+        ])
+    def test_timedelta_divmod(self, op1, op2):
+        expected = (op1 // op2, op1 % op2)
+        assert_equal(divmod(op1, op2), expected)
+
+    @pytest.mark.parametrize("op1, op2", [
+        # Y and M are incompatible with all units except Y and M
+        (np.timedelta64(1, 'Y'), np.timedelta64(1, 's')),
+        (np.timedelta64(1, 'D'), np.timedelta64(1, 'M')),
+        ])
+    def test_timedelta_divmod_typeerror(self, op1, op2):
+        assert_raises(TypeError, np.divmod, op1, op2)
+
+    @pytest.mark.skipif(IS_WASM, reason="does not work in wasm")
+    @pytest.mark.parametrize("op1, op2", [
+        # reuse cases from floordiv
+        # div by 0
+        (np.timedelta64(10, 'us'),
+         np.timedelta64(0, 'us')),
+        # div with NaT
+        (np.timedelta64('NaT'),
+         np.timedelta64(50, 'us')),
+        # special case for int64 min
+        # in integer floor division
+        (np.timedelta64(np.iinfo(np.int64).min),
+         np.timedelta64(-1)),
+        ])
+    def test_timedelta_divmod_warnings(self, op1, op2):
+        with pytest.warns(RuntimeWarning):
+            expected = (op1 // op2, op1 % op2)
+        with pytest.warns(RuntimeWarning):
+            actual = divmod(op1, op2)
+        assert_equal(actual, expected)
+
+    def test_datetime_divide(self):
+        for dta, tda, tdb, tdc, tdd in \
+                    [
+                     # One-dimensional arrays
+                     (np.array(['2012-12-21'], dtype='M8[D]'),
+                      np.array([6], dtype='m8[h]'),
+                      np.array([9], dtype='m8[h]'),
+                      np.array([12], dtype='m8[h]'),
+                      np.array([6], dtype='m8[m]')),
+                     # NumPy scalars
+                     (np.datetime64('2012-12-21', '[D]'),
+                      np.timedelta64(6, '[h]'),
+                      np.timedelta64(9, '[h]'),
+                      np.timedelta64(12, '[h]'),
+                      np.timedelta64(6, '[m]'))]:
+            # m8 / int
+            assert_equal(tdc / 2, tda)
+            assert_equal((tdc / 2).dtype, np.dtype('m8[h]'))
+            # m8 / float
+            assert_equal(tda / 0.5, tdc)
+            assert_equal((tda / 0.5).dtype, np.dtype('m8[h]'))
+            # m8 / m8
+            assert_equal(tda / tdb, 6 / 9)
+            assert_equal(np.divide(tda, tdb), 6 / 9)
+            assert_equal(np.true_divide(tda, tdb), 6 / 9)
+            assert_equal(tdb / tda, 9 / 6)
+            assert_equal((tda / tdb).dtype, np.dtype('f8'))
+            assert_equal(tda / tdd, 60)
+            assert_equal(tdd / tda, 1 / 60)
+
+            # int / m8
+            assert_raises(TypeError, np.divide, 2, tdb)
+            # float / m8
+            assert_raises(TypeError, np.divide, 0.5, tdb)
+            # m8 / M8
+            assert_raises(TypeError, np.divide, dta, tda)
+            # M8 / m8
+            assert_raises(TypeError, np.divide, tda, dta)
+            # M8 / int
+            assert_raises(TypeError, np.divide, dta, 2)
+            # int / M8
+            assert_raises(TypeError, np.divide, 2, dta)
+            # M8 / float
+            assert_raises(TypeError, np.divide, dta, 1.5)
+            # float / M8
+            assert_raises(TypeError, np.divide, 1.5, dta)
+
+        # NaTs
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore', r".*encountered in divide", RuntimeWarning)
+            nat = np.timedelta64('NaT')
+            for tp in (int, float):
+                assert_equal(np.timedelta64(1) / tp(0), nat)
+                assert_equal(np.timedelta64(0) / tp(0), nat)
+                assert_equal(nat / tp(0), nat)
+                assert_equal(nat / tp(2), nat)
+            # Division by inf
+            assert_equal(np.timedelta64(1) / float('inf'), np.timedelta64(0))
+            assert_equal(np.timedelta64(0) / float('inf'), np.timedelta64(0))
+            assert_equal(nat / float('inf'), nat)
+            # Division by nan
+            assert_equal(np.timedelta64(1) / float('nan'), nat)
+            assert_equal(np.timedelta64(0) / float('nan'), nat)
+            assert_equal(nat / float('nan'), nat)
+
+    def test_datetime_compare(self):
+        # Test all the comparison operators
+        a = np.datetime64('2000-03-12T18:00:00.000000')
+        b = np.array(['2000-03-12T18:00:00.000000',
+                      '2000-03-12T17:59:59.999999',
+                      '2000-03-12T18:00:00.000001',
+                      '1970-01-11T12:00:00.909090',
+                      '2016-01-11T12:00:00.909090'],
+                      dtype='datetime64[us]')
+        assert_equal(np.equal(a, b), [1, 0, 0, 0, 0])
+        assert_equal(np.not_equal(a, b), [0, 1, 1, 1, 1])
+        assert_equal(np.less(a, b), [0, 0, 1, 0, 1])
+        assert_equal(np.less_equal(a, b), [1, 0, 1, 0, 1])
+        assert_equal(np.greater(a, b), [0, 1, 0, 1, 0])
+        assert_equal(np.greater_equal(a, b), [1, 1, 0, 1, 0])
+
+    def test_datetime_compare_nat(self):
+        dt_nat = np.datetime64('NaT', 'D')
+        dt_other = np.datetime64('2000-01-01')
+        td_nat = np.timedelta64('NaT', 'h')
+        td_other = np.timedelta64(1, 'h')
+
+        for op in [np.equal, np.less, np.less_equal,
+                   np.greater, np.greater_equal]:
+            assert_(not op(dt_nat, dt_nat))
+            assert_(not op(dt_nat, dt_other))
+            assert_(not op(dt_other, dt_nat))
+
+            assert_(not op(td_nat, td_nat))
+            assert_(not op(td_nat, td_other))
+            assert_(not op(td_other, td_nat))
+
+        assert_(np.not_equal(dt_nat, dt_nat))
+        assert_(np.not_equal(dt_nat, dt_other))
+        assert_(np.not_equal(dt_other, dt_nat))
+
+        assert_(np.not_equal(td_nat, td_nat))
+        assert_(np.not_equal(td_nat, td_other))
+        assert_(np.not_equal(td_other, td_nat))
+
+    def test_datetime_minmax(self):
+        # The metadata of the result should become the GCD
+        # of the operand metadata
+        a = np.array('1999-03-12T13', dtype='M8[2m]')
+        b = np.array('1999-03-12T12', dtype='M8[s]')
+        assert_equal(np.minimum(a, b), b)
+        assert_equal(np.minimum(a, b).dtype, np.dtype('M8[s]'))
+        assert_equal(np.fmin(a, b), b)
+        assert_equal(np.fmin(a, b).dtype, np.dtype('M8[s]'))
+        assert_equal(np.maximum(a, b), a)
+        assert_equal(np.maximum(a, b).dtype, np.dtype('M8[s]'))
+        assert_equal(np.fmax(a, b), a)
+        assert_equal(np.fmax(a, b).dtype, np.dtype('M8[s]'))
+        # Viewed as integers, the comparison is opposite because
+        # of the units chosen
+        assert_equal(np.minimum(a.view('i8'), b.view('i8')), a.view('i8'))
+
+        # Interaction with NaT
+        a = np.array('1999-03-12T13', dtype='M8[2m]')
+        dtnat = np.array('NaT', dtype='M8[h]')
+        assert_equal(np.minimum(a, dtnat), dtnat)
+        assert_equal(np.minimum(dtnat, a), dtnat)
+        assert_equal(np.maximum(a, dtnat), dtnat)
+        assert_equal(np.maximum(dtnat, a), dtnat)
+        assert_equal(np.fmin(dtnat, a), a)
+        assert_equal(np.fmin(a, dtnat), a)
+        assert_equal(np.fmax(dtnat, a), a)
+        assert_equal(np.fmax(a, dtnat), a)
+
+        # Also do timedelta
+        a = np.array(3, dtype='m8[h]')
+        b = np.array(3 * 3600 - 3, dtype='m8[s]')
+        assert_equal(np.minimum(a, b), b)
+        assert_equal(np.minimum(a, b).dtype, np.dtype('m8[s]'))
+        assert_equal(np.fmin(a, b), b)
+        assert_equal(np.fmin(a, b).dtype, np.dtype('m8[s]'))
+        assert_equal(np.maximum(a, b), a)
+        assert_equal(np.maximum(a, b).dtype, np.dtype('m8[s]'))
+        assert_equal(np.fmax(a, b), a)
+        assert_equal(np.fmax(a, b).dtype, np.dtype('m8[s]'))
+        # Viewed as integers, the comparison is opposite because
+        # of the units chosen
+        assert_equal(np.minimum(a.view('i8'), b.view('i8')), a.view('i8'))
+
+        # should raise between datetime and timedelta
+        #
+        # TODO: Allowing unsafe casting by
+        #       default in ufuncs strikes again... :(
+        a = np.array(3, dtype='m8[h]')
+        b = np.array('1999-03-12T12', dtype='M8[s]')
+        #assert_raises(TypeError, np.minimum, a, b)
+        #assert_raises(TypeError, np.maximum, a, b)
+        #assert_raises(TypeError, np.fmin, a, b)
+        #assert_raises(TypeError, np.fmax, a, b)
+        assert_raises(TypeError, np.minimum, a, b, casting='same_kind')
+        assert_raises(TypeError, np.maximum, a, b, casting='same_kind')
+        assert_raises(TypeError, np.fmin, a, b, casting='same_kind')
+        assert_raises(TypeError, np.fmax, a, b, casting='same_kind')
+
+    def test_hours(self):
+        t = np.ones(3, dtype='M8[s]')
+        t[0] = 60 * 60 * 24 + 60 * 60 * 10
+        assert_(t[0].item().hour == 10)
+
+    def test_divisor_conversion_year(self):
+        assert_(np.dtype('M8[Y/4]') == np.dtype('M8[3M]'))
+        assert_(np.dtype('M8[Y/13]') == np.dtype('M8[4W]'))
+        assert_(np.dtype('M8[3Y/73]') == np.dtype('M8[15D]'))
+
+    def test_divisor_conversion_month(self):
+        assert_(np.dtype('M8[M/2]') == np.dtype('M8[2W]'))
+        assert_(np.dtype('M8[M/15]') == np.dtype('M8[2D]'))
+        assert_(np.dtype('M8[3M/40]') == np.dtype('M8[54h]'))
+
+    def test_divisor_conversion_week(self):
+        assert_(np.dtype('m8[W/7]') == np.dtype('m8[D]'))
+        assert_(np.dtype('m8[3W/14]') == np.dtype('m8[36h]'))
+        assert_(np.dtype('m8[5W/140]') == np.dtype('m8[360m]'))
+
+    def test_divisor_conversion_day(self):
+        assert_(np.dtype('M8[D/12]') == np.dtype('M8[2h]'))
+        assert_(np.dtype('M8[D/120]') == np.dtype('M8[12m]'))
+        assert_(np.dtype('M8[3D/960]') == np.dtype('M8[270s]'))
+
+    def test_divisor_conversion_hour(self):
+        assert_(np.dtype('m8[h/30]') == np.dtype('m8[2m]'))
+        assert_(np.dtype('m8[3h/300]') == np.dtype('m8[36s]'))
+
+    def test_divisor_conversion_minute(self):
+        assert_(np.dtype('m8[m/30]') == np.dtype('m8[2s]'))
+        assert_(np.dtype('m8[3m/300]') == np.dtype('m8[600ms]'))
+
+    def test_divisor_conversion_second(self):
+        assert_(np.dtype('m8[s/100]') == np.dtype('m8[10ms]'))
+        assert_(np.dtype('m8[3s/10000]') == np.dtype('m8[300us]'))
+
+    def test_divisor_conversion_fs(self):
+        assert_(np.dtype('M8[fs/100]') == np.dtype('M8[10as]'))
+        assert_raises(ValueError, lambda: np.dtype('M8[3fs/10000]'))
+
+    def test_divisor_conversion_as(self):
+        assert_raises(ValueError, lambda: np.dtype('M8[as/10]'))
+
+    def test_string_parser_variants(self):
+        msg = "no explicit representation of timezones available for " \
+              "np.datetime64"
+        # Allow space instead of 'T' between date and time
+        assert_equal(np.array(['1980-02-29T01:02:03'], np.dtype('M8[s]')),
+                     np.array(['1980-02-29 01:02:03'], np.dtype('M8[s]')))
+        # Allow positive years
+        assert_equal(np.array(['+1980-02-29T01:02:03'], np.dtype('M8[s]')),
+                     np.array(['+1980-02-29 01:02:03'], np.dtype('M8[s]')))
+        # Allow negative years
+        assert_equal(np.array(['-1980-02-29T01:02:03'], np.dtype('M8[s]')),
+                     np.array(['-1980-02-29 01:02:03'], np.dtype('M8[s]')))
+        # UTC specifier
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(
+                np.array(['+1980-02-29T01:02:03'], np.dtype('M8[s]')),
+                np.array(['+1980-02-29 01:02:03Z'], np.dtype('M8[s]')))
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(
+                np.array(['-1980-02-29T01:02:03'], np.dtype('M8[s]')),
+                np.array(['-1980-02-29 01:02:03Z'], np.dtype('M8[s]')))
+        # Time zone offset
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(
+                np.array(['1980-02-29T02:02:03'], np.dtype('M8[s]')),
+                np.array(['1980-02-29 00:32:03-0130'], np.dtype('M8[s]')))
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(
+                np.array(['1980-02-28T22:32:03'], np.dtype('M8[s]')),
+                np.array(['1980-02-29 00:02:03+01:30'], np.dtype('M8[s]')))
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(
+                np.array(['1980-02-29T02:32:03.506'], np.dtype('M8[s]')),
+                np.array(['1980-02-29 00:32:03.506-02'], np.dtype('M8[s]')))
+        with pytest.warns(UserWarning, match=msg):
+            assert_equal(np.datetime64('1977-03-02T12:30-0230'),
+                         np.datetime64('1977-03-02T15:00'))
+
+    def test_string_parser_error_check(self):
+        msg = "no explicit representation of timezones available for " \
+              "np.datetime64"
+        # Arbitrary bad string
+        assert_raises(ValueError, np.array, ['badvalue'], np.dtype('M8[us]'))
+        # Character after year must be '-'
+        assert_raises(ValueError, np.array, ['1980X'], np.dtype('M8[us]'))
+        # Cannot have trailing '-'
+        assert_raises(ValueError, np.array, ['1980-'], np.dtype('M8[us]'))
+        # Month must be in range [1,12]
+        assert_raises(ValueError, np.array, ['1980-00'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-13'], np.dtype('M8[us]'))
+        # Month must have two digits
+        assert_raises(ValueError, np.array, ['1980-1'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-1-02'], np.dtype('M8[us]'))
+        # 'Mor' is not a valid month
+        assert_raises(ValueError, np.array, ['1980-Mor'], np.dtype('M8[us]'))
+        # Cannot have trailing '-'
+        assert_raises(ValueError, np.array, ['1980-01-'], np.dtype('M8[us]'))
+        # Day must be in range [1,len(month)]
+        assert_raises(ValueError, np.array, ['1980-01-0'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-01-00'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-01-32'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1979-02-29'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-30'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-03-32'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-04-31'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-05-32'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-06-31'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-07-32'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-08-32'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-09-31'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-10-32'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-11-31'], np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-12-32'], np.dtype('M8[us]'))
+        # Cannot have trailing characters
+        assert_raises(ValueError, np.array, ['1980-02-03%'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03 q'],
+                                                        np.dtype('M8[us]'))
+
+        # Hours must be in range [0, 23]
+        assert_raises(ValueError, np.array, ['1980-02-03 25'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03T25'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03 24:01'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03T24:01'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03 -1'],
+                                                        np.dtype('M8[us]'))
+        # No trailing ':'
+        assert_raises(ValueError, np.array, ['1980-02-03 01:'],
+                                                        np.dtype('M8[us]'))
+        # Minutes must be in range [0, 59]
+        assert_raises(ValueError, np.array, ['1980-02-03 01:-1'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03 01:60'],
+                                                        np.dtype('M8[us]'))
+        # No trailing ':'
+        assert_raises(ValueError, np.array, ['1980-02-03 01:60:'],
+                                                        np.dtype('M8[us]'))
+        # Seconds must be in range [0, 59]
+        assert_raises(ValueError, np.array, ['1980-02-03 01:10:-1'],
+                                                        np.dtype('M8[us]'))
+        assert_raises(ValueError, np.array, ['1980-02-03 01:01:60'],
+                                                        np.dtype('M8[us]'))
+        # Timezone offset must within a reasonable range
+        with pytest.warns(UserWarning, match=msg):
+            assert_raises(ValueError, np.array, ['1980-02-03 01:01:00+0661'],
+                                                            np.dtype('M8[us]'))
+        with pytest.warns(UserWarning, match=msg):
+            assert_raises(ValueError, np.array, ['1980-02-03 01:01:00+2500'],
+                                                            np.dtype('M8[us]'))
+        with pytest.warns(UserWarning, match=msg):
+            assert_raises(ValueError, np.array, ['1980-02-03 01:01:00-0070'],
+                                                            np.dtype('M8[us]'))
+        with pytest.warns(UserWarning, match=msg):
+            assert_raises(ValueError, np.array, ['1980-02-03 01:01:00-3000'],
+                                                            np.dtype('M8[us]'))
+        with pytest.warns(UserWarning, match=msg):
+            assert_raises(ValueError, np.array, ['1980-02-03 01:01:00-25:00'],
+                                                            np.dtype('M8[us]'))
+
+    def test_creation_overflow(self):
+        date = '1980-03-23 20:00:00'
+        timesteps = np.array([date], dtype='datetime64[s]')[0].astype(np.int64)
+        for unit in ['ms', 'us', 'ns']:
+            timesteps *= 1000
+            x = np.array([date], dtype=f'datetime64[{unit}]')
+
+            assert_equal(timesteps, x[0].astype(np.int64),
+                         err_msg=f'Datetime conversion error for unit {unit}')
+
+        assert_equal(x[0].astype(np.int64), 322689600000000000)
+
+        # gh-13062
+        with pytest.raises(OverflowError):
+            np.datetime64(2**64, 'D')
+        with pytest.raises(OverflowError):
+            np.timedelta64(2**64, 'D')
+
+    def test_datetime_as_string(self):
+        # Check all the units with default string conversion
+        date = '1959-10-13'
+        datetime = '1959-10-13T12:34:56.789012345678901234'
+
+        assert_equal(np.datetime_as_string(np.datetime64(date, 'Y')),
+                     '1959')
+        assert_equal(np.datetime_as_string(np.datetime64(date, 'M')),
+                     '1959-10')
+        assert_equal(np.datetime_as_string(np.datetime64(date, 'D')),
+                     '1959-10-13')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'h')),
+                     '1959-10-13T12')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'm')),
+                     '1959-10-13T12:34')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 's')),
+                     '1959-10-13T12:34:56')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'ms')),
+                     '1959-10-13T12:34:56.789')
+        for us in ['us', 'μs', b'us']:  # check non-ascii and bytes too
+            assert_equal(np.datetime_as_string(np.datetime64(datetime, us)),
+                         '1959-10-13T12:34:56.789012')
+
+        datetime = '1969-12-31T23:34:56.789012345678901234'
+
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'ns')),
+                     '1969-12-31T23:34:56.789012345')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'ps')),
+                     '1969-12-31T23:34:56.789012345678')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'fs')),
+                     '1969-12-31T23:34:56.789012345678901')
+
+        datetime = '1969-12-31T23:59:57.789012345678901234'
+
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'as')),
+                     datetime)
+        datetime = '1970-01-01T00:34:56.789012345678901234'
+
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'ns')),
+                     '1970-01-01T00:34:56.789012345')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'ps')),
+                     '1970-01-01T00:34:56.789012345678')
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'fs')),
+                     '1970-01-01T00:34:56.789012345678901')
+
+        datetime = '1970-01-01T00:00:05.789012345678901234'
+
+        assert_equal(np.datetime_as_string(np.datetime64(datetime, 'as')),
+                     datetime)
+
+        # String conversion with the unit= parameter
+        a = np.datetime64('2032-07-18T12:23:34.123456', 'us')
+        assert_equal(np.datetime_as_string(a, unit='Y', casting='unsafe'),
+                            '2032')
+        assert_equal(np.datetime_as_string(a, unit='M', casting='unsafe'),
+                            '2032-07')
+        assert_equal(np.datetime_as_string(a, unit='W', casting='unsafe'),
+                            '2032-07-18')
+        assert_equal(np.datetime_as_string(a, unit='D', casting='unsafe'),
+                            '2032-07-18')
+
+        with pytest.raises(ValueError):
+            np.datetime_as_string(a, unit='Y', casting='same_value')
+
+        assert_equal(np.datetime_as_string(a, unit='h'), '2032-07-18T12')
+        assert_equal(np.datetime_as_string(a, unit='m'),
+                            '2032-07-18T12:23')
+        assert_equal(np.datetime_as_string(a, unit='s'),
+                            '2032-07-18T12:23:34')
+        assert_equal(np.datetime_as_string(a, unit='ms'),
+                            '2032-07-18T12:23:34.123')
+        assert_equal(np.datetime_as_string(a, unit='us'),
+                            '2032-07-18T12:23:34.123456')
+        assert_equal(np.datetime_as_string(a, unit='ns'),
+                            '2032-07-18T12:23:34.123456000')
+        assert_equal(np.datetime_as_string(a, unit='ps'),
+                            '2032-07-18T12:23:34.123456000000')
+        assert_equal(np.datetime_as_string(a, unit='fs'),
+                            '2032-07-18T12:23:34.123456000000000')
+        assert_equal(np.datetime_as_string(a, unit='as'),
+                            '2032-07-18T12:23:34.123456000000000000')
+
+        # unit='auto' parameter
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-18T12:23:34.123456', 'us'), unit='auto'),
+                '2032-07-18T12:23:34.123456')
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-18T12:23:34.12', 'us'), unit='auto'),
+                '2032-07-18T12:23:34.120')
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-18T12:23:34', 'us'), unit='auto'),
+                '2032-07-18T12:23:34')
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-18T12:23:00', 'us'), unit='auto'),
+                '2032-07-18T12:23')
+        # 'auto' doesn't split up hour and minute
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-18T12:00:00', 'us'), unit='auto'),
+                '2032-07-18T12:00')
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-18T00:00:00', 'us'), unit='auto'),
+                '2032-07-18')
+        # 'auto' doesn't split up the date
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-07-01T00:00:00', 'us'), unit='auto'),
+                '2032-07-01')
+        assert_equal(np.datetime_as_string(
+                np.datetime64('2032-01-01T00:00:00', 'us'), unit='auto'),
+                '2032-01-01')
+
+    @pytest.mark.skipif(not _has_tz, reason="The tzdata module is not available.")
+    def test_datetime_as_string_timezone(self):
+        # timezone='local' vs 'UTC'
+        a = np.datetime64('2010-03-15T06:30', 'm')
+        assert_equal(np.datetime_as_string(a),
+                '2010-03-15T06:30')
+        assert_equal(np.datetime_as_string(a, timezone='naive'),
+                '2010-03-15T06:30')
+        assert_equal(np.datetime_as_string(a, timezone='UTC'),
+                '2010-03-15T06:30Z')
+        assert_(np.datetime_as_string(a, timezone='local') !=
+                '2010-03-15T06:30')
+
+        b = np.datetime64('2010-02-15T06:30', 'm')
+
+        assert_equal(np.datetime_as_string(a, timezone=ZoneInfo('US/Central')),
+                     '2010-03-15T01:30-0500')
+        assert_equal(np.datetime_as_string(a, timezone=ZoneInfo('US/Eastern')),
+                     '2010-03-15T02:30-0400')
+        assert_equal(np.datetime_as_string(a, timezone=ZoneInfo('US/Pacific')),
+                     '2010-03-14T23:30-0700')
+
+        assert_equal(np.datetime_as_string(b, timezone=ZoneInfo('US/Central')),
+                     '2010-02-15T00:30-0600')
+        assert_equal(np.datetime_as_string(b, timezone=ZoneInfo('US/Eastern')),
+                     '2010-02-15T01:30-0500')
+        assert_equal(np.datetime_as_string(b, timezone=ZoneInfo('US/Pacific')),
+                     '2010-02-14T22:30-0800')
+
+        # Dates to strings with a timezone attached is disabled by default
+        assert_raises(TypeError, np.datetime_as_string, a, unit='D',
+                           timezone=ZoneInfo('US/Pacific'))
+        # Check that we can print out the date in the specified time zone
+        assert_equal(np.datetime_as_string(a, unit='D',
+                           timezone=ZoneInfo('US/Pacific'), casting='unsafe'),
+                     '2010-03-14')
+        assert_equal(np.datetime_as_string(b, unit='D',
+                           timezone=ZoneInfo('US/Central'), casting='unsafe'),
+                     '2010-02-15')
+
+    def test_datetime_arange(self):
+        # With two datetimes provided as strings
+        a = np.arange('2010-01-05', '2010-01-10', dtype='M8[D]')
+        assert_equal(a.dtype, np.dtype('M8[D]'))
+        assert_equal(a,
+            np.array(['2010-01-05', '2010-01-06', '2010-01-07',
+                      '2010-01-08', '2010-01-09'], dtype='M8[D]'))
+
+        a = np.arange('1950-02-10', '1950-02-06', -1, dtype='M8[D]')
+        assert_equal(a.dtype, np.dtype('M8[D]'))
+        assert_equal(a,
+            np.array(['1950-02-10', '1950-02-09', '1950-02-08',
+                      '1950-02-07'], dtype='M8[D]'))
+
+        # Unit should be detected as months here
+        a = np.arange('1969-05', '1970-05', 2, dtype='M8')
+        assert_equal(a.dtype, np.dtype('M8[M]'))
+        assert_equal(a,
+            np.datetime64('1969-05') + np.arange(12, step=2))
+
+        # datetime, integer|timedelta works as well
+        # produces arange (start, start + stop) in this case
+        a = np.arange('1969', 18, 3, dtype='M8')
+        assert_equal(a.dtype, np.dtype('M8[Y]'))
+        assert_equal(a,
+            np.datetime64('1969') + np.arange(18, step=3))
+        a = np.arange('1969-12-19', 22, np.timedelta64(2), dtype='M8')
+        assert_equal(a.dtype, np.dtype('M8[D]'))
+        assert_equal(a,
+            np.datetime64('1969-12-19') + np.arange(22, step=2))
+
+        # Step of 0 is disallowed
+        assert_raises(ValueError, np.arange, np.datetime64('today'),
+                                np.datetime64('today') + 3, 0)
+        # Promotion across nonlinear unit boundaries is disallowed
+        assert_raises(TypeError, np.arange, np.datetime64('2011-03-01', 'D'),
+                                np.timedelta64(5, 'M'))
+        assert_raises(TypeError, np.arange,
+                                np.datetime64('2012-02-03T14', 's'),
+                                np.timedelta64(5, 'Y'))
+
+    def test_datetime_arange_no_dtype(self):
+        d = np.array('2010-01-04', dtype="M8[D]")
+        assert_equal(np.arange(d, d + 1), d)
+        assert_raises(ValueError, np.arange, d)
+
+    def test_timedelta_arange(self):
+        a = np.arange(3, 10, dtype='m8')
+        assert_equal(a.dtype, np.dtype('m8'))
+        assert_equal(a, np.timedelta64(0) + np.arange(3, 10))
+
+        a = np.arange(np.timedelta64(3, 's'), 10, 2, dtype='m8')
+        assert_equal(a.dtype, np.dtype('m8[s]'))
+        assert_equal(a, np.timedelta64(0, 's') + np.arange(3, 10, 2))
+
+        # Step of 0 is disallowed
+        assert_raises(ValueError, np.arange, np.timedelta64(0),
+                                np.timedelta64(5), 0)
+        # Promotion across nonlinear unit boundaries is disallowed
+        assert_raises(TypeError, np.arange, np.timedelta64(0, 'D'),
+                                np.timedelta64(5, 'M'))
+        assert_raises(TypeError, np.arange, np.timedelta64(0, 'Y'),
+                                np.timedelta64(5, 'D'))
+
+    @pytest.mark.parametrize("val1, val2, expected", [
+        # case from gh-12092
+        (np.timedelta64(7, 's'),
+         np.timedelta64(3, 's'),
+         np.timedelta64(1, 's')),
+        # negative value cases
+        (np.timedelta64(3, 's'),
+         np.timedelta64(-2, 's'),
+         np.timedelta64(-1, 's')),
+        (np.timedelta64(-3, 's'),
+         np.timedelta64(2, 's'),
+         np.timedelta64(1, 's')),
+        # larger value cases
+        (np.timedelta64(17, 's'),
+         np.timedelta64(22, 's'),
+         np.timedelta64(17, 's')),
+        (np.timedelta64(22, 's'),
+         np.timedelta64(17, 's'),
+         np.timedelta64(5, 's')),
+        # different units
+        (np.timedelta64(1, 'm'),
+         np.timedelta64(57, 's'),
+         np.timedelta64(3, 's')),
+        (np.timedelta64(1, 'us'),
+         np.timedelta64(727, 'ns'),
+         np.timedelta64(273, 'ns')),
+        # NaT is propagated
+        (np.timedelta64('NaT'),
+         np.timedelta64(50, 'ns'),
+         np.timedelta64('NaT')),
+        # Y % M works
+        (np.timedelta64(2, 'Y'),
+         np.timedelta64(22, 'M'),
+         np.timedelta64(2, 'M')),
+        ])
+    def test_timedelta_modulus(self, val1, val2, expected):
+        assert_equal(val1 % val2, expected)
+
+    @pytest.mark.parametrize("val1, val2", [
+        # years and months sometimes can't be unambiguously
+        # divided for modulus operation
+        (np.timedelta64(7, 'Y'),
+         np.timedelta64(3, 's')),
+        (np.timedelta64(7, 'M'),
+         np.timedelta64(1, 'D')),
+        ])
+    def test_timedelta_modulus_error(self, val1, val2):
+        with assert_raises_regex(TypeError, "common metadata divisor"):
+            val1 % val2
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_timedelta_modulus_div_by_zero(self):
+        with pytest.warns(RuntimeWarning):
+            actual = np.timedelta64(10, 's') % np.timedelta64(0, 's')
+            assert_equal(actual, np.timedelta64('NaT'))
+
+    @pytest.mark.parametrize("val1, val2", [
+        # cases where one operand is not
+        # timedelta64
+        (np.timedelta64(7, 'Y'),
+         15,),
+        (7.5,
+         np.timedelta64(1, 'D')),
+        ])
+    def test_timedelta_modulus_type_resolution(self, val1, val2):
+        # NOTE: some of the operations may be supported
+        # in the future
+        with assert_raises_regex(TypeError,
+                                 "'remainder' cannot use operands with types"):
+            val1 % val2
+
+    def test_timedelta_arange_no_dtype(self):
+        d = np.array(5, dtype="m8[D]")
+        assert_equal(np.arange(d, d + 1), d)
+        assert_equal(np.arange(d), np.arange(0, d))
+
+    def test_datetime_maximum_reduce(self):
+        a = np.array(['2010-01-02', '1999-03-14', '1833-03'], dtype='M8[D]')
+        assert_equal(np.maximum.reduce(a).dtype, np.dtype('M8[D]'))
+        assert_equal(np.maximum.reduce(a),
+                     np.datetime64('2010-01-02'))
+
+        a = np.array([1, 4, 0, 7, 2], dtype='m8[s]')
+        assert_equal(np.maximum.reduce(a).dtype, np.dtype('m8[s]'))
+        assert_equal(np.maximum.reduce(a),
+                     np.timedelta64(7, 's'))
+
+    def test_timedelta_correct_mean(self):
+        # test mainly because it worked only via a bug in that allowed:
+        # `timedelta.sum(dtype="f8")` to ignore the dtype request.
+        a = np.arange(1000, dtype="m8[s]")
+        assert_array_equal(a.mean(), a.sum() / len(a))
+
+    def test_datetime_no_subtract_reducelike(self):
+        # subtracting two datetime64 works, but we cannot reduce it, since
+        # the result of that subtraction will have a different dtype.
+        arr = np.array(["2021-12-02", "2019-05-12"], dtype="M8[ms]")
+        msg = r"the resolved dtypes are not compatible"
+
+        with pytest.raises(TypeError, match=msg):
+            np.subtract.reduce(arr)
+
+        with pytest.raises(TypeError, match=msg):
+            np.subtract.accumulate(arr)
+
+        with pytest.raises(TypeError, match=msg):
+            np.subtract.reduceat(arr, [0])
+
+    def test_datetime_busday_offset(self):
+        # First Monday in June
+        assert_equal(
+            np.busday_offset('2011-06', 0, roll='forward', weekmask='Mon'),
+            np.datetime64('2011-06-06'))
+        # Last Monday in June
+        assert_equal(
+            np.busday_offset('2011-07', -1, roll='forward', weekmask='Mon'),
+            np.datetime64('2011-06-27'))
+        assert_equal(
+            np.busday_offset('2011-07', -1, roll='forward', weekmask='Mon'),
+            np.datetime64('2011-06-27'))
+
+        # Default M-F business days, different roll modes
+        assert_equal(np.busday_offset('2010-08', 0, roll='backward'),
+                     np.datetime64('2010-07-30'))
+        assert_equal(np.busday_offset('2010-08', 0, roll='preceding'),
+                     np.datetime64('2010-07-30'))
+        assert_equal(np.busday_offset('2010-08', 0, roll='modifiedpreceding'),
+                     np.datetime64('2010-08-02'))
+        assert_equal(np.busday_offset('2010-08', 0, roll='modifiedfollowing'),
+                     np.datetime64('2010-08-02'))
+        assert_equal(np.busday_offset('2010-08', 0, roll='forward'),
+                     np.datetime64('2010-08-02'))
+        assert_equal(np.busday_offset('2010-08', 0, roll='following'),
+                     np.datetime64('2010-08-02'))
+        assert_equal(np.busday_offset('2010-10-30', 0, roll='following'),
+                     np.datetime64('2010-11-01'))
+        assert_equal(
+                np.busday_offset('2010-10-30', 0, roll='modifiedfollowing'),
+                np.datetime64('2010-10-29'))
+        assert_equal(
+                np.busday_offset('2010-10-30', 0, roll='modifiedpreceding'),
+                np.datetime64('2010-10-29'))
+        assert_equal(
+                np.busday_offset('2010-10-16', 0, roll='modifiedfollowing'),
+                np.datetime64('2010-10-18'))
+        assert_equal(
+                np.busday_offset('2010-10-16', 0, roll='modifiedpreceding'),
+                np.datetime64('2010-10-15'))
+        # roll='raise' by default
+        assert_raises(ValueError, np.busday_offset, '2011-06-04', 0)
+
+        # Bigger offset values
+        assert_equal(np.busday_offset('2006-02-01', 25),
+                     np.datetime64('2006-03-08'))
+        assert_equal(np.busday_offset('2006-03-08', -25),
+                     np.datetime64('2006-02-01'))
+        assert_equal(np.busday_offset('2007-02-25', 11, weekmask='SatSun'),
+                     np.datetime64('2007-04-07'))
+        assert_equal(np.busday_offset('2007-04-07', -11, weekmask='SatSun'),
+                     np.datetime64('2007-02-25'))
+
+        # NaT values when roll is not raise
+        assert_equal(np.busday_offset(np.datetime64('NaT'), 1, roll='nat'),
+                     np.datetime64('NaT'))
+        assert_equal(np.busday_offset(np.datetime64('NaT'), 1, roll='following'),
+                     np.datetime64('NaT'))
+        assert_equal(np.busday_offset(np.datetime64('NaT'), 1, roll='preceding'),
+                     np.datetime64('NaT'))
+
+    def test_datetime_busdaycalendar(self):
+        # Check that it removes NaT, duplicates, and weekends
+        # and sorts the result.
+        bdd = np.busdaycalendar(
+            holidays=['NaT', '2011-01-17', '2011-03-06', 'NaT',
+                       '2011-12-26', '2011-05-30', '2011-01-17'])
+        assert_equal(bdd.holidays,
+            np.array(['2011-01-17', '2011-05-30', '2011-12-26'], dtype='M8'))
+        # Default M-F weekmask
+        assert_equal(bdd.weekmask, np.array([1, 1, 1, 1, 1, 0, 0], dtype='?'))
+
+        # Check string weekmask with varying whitespace.
+        bdd = np.busdaycalendar(weekmask="Sun TueWed  Thu\tFri")
+        assert_equal(bdd.weekmask, np.array([0, 1, 1, 1, 1, 0, 1], dtype='?'))
+
+        # Check length 7 0/1 string
+        bdd = np.busdaycalendar(weekmask="0011001")
+        assert_equal(bdd.weekmask, np.array([0, 0, 1, 1, 0, 0, 1], dtype='?'))
+
+        # Check length 7 bool array.
+        mask = np.array([False, True, True, True, True, False, False])
+        bdd = np.busdaycalendar(weekmask=mask)
+        assert_equal(bdd.weekmask, mask, strict=True)
+
+        # Check length 7 string weekmask.
+        bdd = np.busdaycalendar(weekmask="Mon Tue")
+        assert_equal(bdd.weekmask, np.array([1, 1, 0, 0, 0, 0, 0], dtype='?'))
+
+        # All-zeros weekmask should raise
+        assert_raises(ValueError, np.busdaycalendar, weekmask=[0, 0, 0, 0, 0, 0, 0])
+        # weekday names must be correct case
+        assert_raises(ValueError, np.busdaycalendar, weekmask="satsun")
+        # All-zeros weekmask should raise
+        assert_raises(ValueError, np.busdaycalendar, weekmask="")
+        # Invalid weekday name codes should raise
+        assert_raises(ValueError, np.busdaycalendar, weekmask="Mon Tue We")
+        assert_raises(ValueError, np.busdaycalendar, weekmask="Max")
+        assert_raises(ValueError, np.busdaycalendar, weekmask="Monday Tue")
+
+    def test_datetime_busday_holidays_offset(self):
+        # With exactly one holiday
+        assert_equal(
+            np.busday_offset('2011-11-10', 1, holidays=['2011-11-11']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-04', 5, holidays=['2011-11-11']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-10', 5, holidays=['2011-11-11']),
+            np.datetime64('2011-11-18'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -1, holidays=['2011-11-11']),
+            np.datetime64('2011-11-10'))
+        assert_equal(
+            np.busday_offset('2011-11-18', -5, holidays=['2011-11-11']),
+            np.datetime64('2011-11-10'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -5, holidays=['2011-11-11']),
+            np.datetime64('2011-11-04'))
+        # With the holiday appearing twice
+        assert_equal(
+            np.busday_offset('2011-11-10', 1,
+                holidays=['2011-11-11', '2011-11-11']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -1,
+                holidays=['2011-11-11', '2011-11-11']),
+            np.datetime64('2011-11-10'))
+        # With a NaT holiday
+        assert_equal(
+            np.busday_offset('2011-11-10', 1,
+                holidays=['2011-11-11', 'NaT']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -1,
+                holidays=['NaT', '2011-11-11']),
+            np.datetime64('2011-11-10'))
+        # With another holiday after
+        assert_equal(
+            np.busday_offset('2011-11-10', 1,
+                holidays=['2011-11-11', '2011-11-24']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -1,
+                holidays=['2011-11-11', '2011-11-24']),
+            np.datetime64('2011-11-10'))
+        # With another holiday before
+        assert_equal(
+            np.busday_offset('2011-11-10', 1,
+                holidays=['2011-10-10', '2011-11-11']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -1,
+                holidays=['2011-10-10', '2011-11-11']),
+            np.datetime64('2011-11-10'))
+        # With another holiday before and after
+        assert_equal(
+            np.busday_offset('2011-11-10', 1,
+                holidays=['2011-10-10', '2011-11-11', '2011-11-24']),
+            np.datetime64('2011-11-14'))
+        assert_equal(
+            np.busday_offset('2011-11-14', -1,
+                holidays=['2011-10-10', '2011-11-11', '2011-11-24']),
+            np.datetime64('2011-11-10'))
+
+        # A bigger forward jump across more than one week/holiday
+        holidays = ['2011-10-10', '2011-11-11', '2011-11-24',
+                  '2011-12-25', '2011-05-30', '2011-02-21',
+                  '2011-12-26', '2012-01-02']
+        bdd = np.busdaycalendar(weekmask='1111100', holidays=holidays)
+        assert_equal(
+            np.busday_offset('2011-10-03', 4, holidays=holidays),
+            np.busday_offset('2011-10-03', 4))
+        assert_equal(
+            np.busday_offset('2011-10-03', 5, holidays=holidays),
+            np.busday_offset('2011-10-03', 5 + 1))
+        assert_equal(
+            np.busday_offset('2011-10-03', 27, holidays=holidays),
+            np.busday_offset('2011-10-03', 27 + 1))
+        assert_equal(
+            np.busday_offset('2011-10-03', 28, holidays=holidays),
+            np.busday_offset('2011-10-03', 28 + 2))
+        assert_equal(
+            np.busday_offset('2011-10-03', 35, holidays=holidays),
+            np.busday_offset('2011-10-03', 35 + 2))
+        assert_equal(
+            np.busday_offset('2011-10-03', 36, holidays=holidays),
+            np.busday_offset('2011-10-03', 36 + 3))
+        assert_equal(
+            np.busday_offset('2011-10-03', 56, holidays=holidays),
+            np.busday_offset('2011-10-03', 56 + 3))
+        assert_equal(
+            np.busday_offset('2011-10-03', 57, holidays=holidays),
+            np.busday_offset('2011-10-03', 57 + 4))
+        assert_equal(
+            np.busday_offset('2011-10-03', 60, holidays=holidays),
+            np.busday_offset('2011-10-03', 60 + 4))
+        assert_equal(
+            np.busday_offset('2011-10-03', 61, holidays=holidays),
+            np.busday_offset('2011-10-03', 61 + 5))
+        assert_equal(
+            np.busday_offset('2011-10-03', 61, busdaycal=bdd),
+            np.busday_offset('2011-10-03', 61 + 5))
+        # A bigger backward jump across more than one week/holiday
+        assert_equal(
+            np.busday_offset('2012-01-03', -1, holidays=holidays),
+            np.busday_offset('2012-01-03', -1 - 1))
+        assert_equal(
+            np.busday_offset('2012-01-03', -4, holidays=holidays),
+            np.busday_offset('2012-01-03', -4 - 1))
+        assert_equal(
+            np.busday_offset('2012-01-03', -5, holidays=holidays),
+            np.busday_offset('2012-01-03', -5 - 2))
+        assert_equal(
+            np.busday_offset('2012-01-03', -25, holidays=holidays),
+            np.busday_offset('2012-01-03', -25 - 2))
+        assert_equal(
+            np.busday_offset('2012-01-03', -26, holidays=holidays),
+            np.busday_offset('2012-01-03', -26 - 3))
+        assert_equal(
+            np.busday_offset('2012-01-03', -33, holidays=holidays),
+            np.busday_offset('2012-01-03', -33 - 3))
+        assert_equal(
+            np.busday_offset('2012-01-03', -34, holidays=holidays),
+            np.busday_offset('2012-01-03', -34 - 4))
+        assert_equal(
+            np.busday_offset('2012-01-03', -56, holidays=holidays),
+            np.busday_offset('2012-01-03', -56 - 4))
+        assert_equal(
+            np.busday_offset('2012-01-03', -57, holidays=holidays),
+            np.busday_offset('2012-01-03', -57 - 5))
+        assert_equal(
+            np.busday_offset('2012-01-03', -57, busdaycal=bdd),
+            np.busday_offset('2012-01-03', -57 - 5))
+
+        # Can't supply both a weekmask/holidays and busdaycal
+        assert_raises(ValueError, np.busday_offset, '2012-01-03', -15,
+                        weekmask='1111100', busdaycal=bdd)
+        assert_raises(ValueError, np.busday_offset, '2012-01-03', -15,
+                        holidays=holidays, busdaycal=bdd)
+
+        # Roll with the holidays
+        assert_equal(
+            np.busday_offset('2011-12-25', 0,
+                roll='forward', holidays=holidays),
+            np.datetime64('2011-12-27'))
+        assert_equal(
+            np.busday_offset('2011-12-26', 0,
+                roll='forward', holidays=holidays),
+            np.datetime64('2011-12-27'))
+        assert_equal(
+            np.busday_offset('2011-12-26', 0,
+                roll='backward', holidays=holidays),
+            np.datetime64('2011-12-23'))
+        assert_equal(
+            np.busday_offset('2012-02-27', 0,
+                roll='modifiedfollowing',
+                holidays=['2012-02-27', '2012-02-26', '2012-02-28',
+                          '2012-03-01', '2012-02-29']),
+            np.datetime64('2012-02-24'))
+        assert_equal(
+            np.busday_offset('2012-03-06', 0,
+                roll='modifiedpreceding',
+                holidays=['2012-03-02', '2012-03-03', '2012-03-01',
+                          '2012-03-05', '2012-03-07', '2012-03-06']),
+            np.datetime64('2012-03-08'))
+
+    def test_datetime_busday_holidays_count(self):
+        holidays = ['2011-01-01', '2011-10-10', '2011-11-11', '2011-11-24',
+                    '2011-12-25', '2011-05-30', '2011-02-21', '2011-01-17',
+                    '2011-12-26', '2012-01-02', '2011-02-21', '2011-05-30',
+                    '2011-07-01', '2011-07-04', '2011-09-05', '2011-10-10']
+        bdd = np.busdaycalendar(weekmask='1111100', holidays=holidays)
+
+        # Validate against busday_offset broadcast against
+        # a range of offsets
+        dates = np.busday_offset('2011-01-01', np.arange(366),
+                        roll='forward', busdaycal=bdd)
+        assert_equal(np.busday_count('2011-01-01', dates, busdaycal=bdd),
+                     np.arange(366))
+        # Returns negative value when reversed
+        # -1 since the '2011-01-01' is not a busday
+        assert_equal(np.busday_count(dates, '2011-01-01', busdaycal=bdd),
+                     -np.arange(366) - 1)
+
+        # 2011-12-31 is a saturday
+        dates = np.busday_offset('2011-12-31', -np.arange(366),
+                        roll='forward', busdaycal=bdd)
+        # only the first generated date is in the future of 2011-12-31
+        expected = np.arange(366)
+        expected[0] = -1
+        assert_equal(np.busday_count(dates, '2011-12-31', busdaycal=bdd),
+                     expected)
+        # Returns negative value when reversed
+        expected = -np.arange(366) + 1
+        expected[0] = 0
+        assert_equal(np.busday_count('2011-12-31', dates, busdaycal=bdd),
+                     expected)
+
+        # Can't supply both a weekmask/holidays and busdaycal
+        assert_raises(ValueError, np.busday_offset, '2012-01-03', '2012-02-03',
+                        weekmask='1111100', busdaycal=bdd)
+        assert_raises(ValueError, np.busday_offset, '2012-01-03', '2012-02-03',
+                        holidays=holidays, busdaycal=bdd)
+
+        # Number of Mondays in March 2011
+        assert_equal(np.busday_count('2011-03', '2011-04', weekmask='Mon'), 4)
+        # Returns negative value when reversed
+        assert_equal(np.busday_count('2011-04', '2011-03', weekmask='Mon'), -4)
+
+        sunday = np.datetime64('2023-03-05')
+        monday = sunday + 1
+        friday = sunday + 5
+        saturday = sunday + 6
+        assert_equal(np.busday_count(sunday, monday), 0)
+        assert_equal(np.busday_count(monday, sunday), -1)
+
+        assert_equal(np.busday_count(friday, saturday), 1)
+        assert_equal(np.busday_count(saturday, friday), 0)
+
+    def test_datetime_is_busday(self):
+        holidays = ['2011-01-01', '2011-10-10', '2011-11-11', '2011-11-24',
+                    '2011-12-25', '2011-05-30', '2011-02-21', '2011-01-17',
+                    '2011-12-26', '2012-01-02', '2011-02-21', '2011-05-30',
+                    '2011-07-01', '2011-07-04', '2011-09-05', '2011-10-10',
+                    'NaT']
+        bdd = np.busdaycalendar(weekmask='1111100', holidays=holidays)
+
+        # Weekend/weekday tests
+        assert_equal(np.is_busday('2011-01-01'), False)
+        assert_equal(np.is_busday('2011-01-02'), False)
+        assert_equal(np.is_busday('2011-01-03'), True)
+
+        # All the holidays are not business days
+        assert_equal(np.is_busday(holidays, busdaycal=bdd),
+                     np.zeros(len(holidays), dtype='?'))
+
+    def test_datetime_y2038(self):
+        msg = "no explicit representation of timezones available for " \
+              "np.datetime64"
+        # Test parsing on either side of the Y2038 boundary
+        a = np.datetime64('2038-01-19T03:14:07')
+        assert_equal(a.view(np.int64), 2**31 - 1)
+        a = np.datetime64('2038-01-19T03:14:08')
+        assert_equal(a.view(np.int64), 2**31)
+
+        # Test parsing on either side of the Y2038 boundary with
+        # a manually specified timezone offset
+        with pytest.warns(UserWarning, match=msg):
+            a = np.datetime64('2038-01-19T04:14:07+0100')
+            assert_equal(a.view(np.int64), 2**31 - 1)
+        with pytest.warns(UserWarning, match=msg):
+            a = np.datetime64('2038-01-19T04:14:08+0100')
+            assert_equal(a.view(np.int64), 2**31)
+
+        # Test parsing a date after Y2038
+        a = np.datetime64('2038-01-20T13:21:14')
+        assert_equal(str(a), '2038-01-20T13:21:14')
+
+    def test_isnat(self):
+        assert_(np.isnat(np.datetime64('NaT', 'ms')))
+        assert_(np.isnat(np.datetime64('NaT', 'ns')))
+        assert_(not np.isnat(np.datetime64('2038-01-19T03:14:07')))
+
+        assert_(np.isnat(np.timedelta64('NaT', "ms")))
+        assert_(not np.isnat(np.timedelta64(34, "ms")))
+
+        res = np.array([False, False, True])
+        for unit in ['Y', 'M', 'W', 'D',
+                     'h', 'm', 's', 'ms', 'us',
+                     'ns', 'ps', 'fs', 'as']:
+            arr = np.array([123, -321, "NaT"], dtype=f'<datetime64[{unit}]')
+            assert_equal(np.isnat(arr), res)
+            arr = np.array([123, -321, "NaT"], dtype=f'>datetime64[{unit}]')
+            assert_equal(np.isnat(arr), res)
+            arr = np.array([123, -321, "NaT"], dtype=f'<timedelta64[{unit}]')
+            assert_equal(np.isnat(arr), res)
+            arr = np.array([123, -321, "NaT"], dtype=f'>timedelta64[{unit}]')
+            assert_equal(np.isnat(arr), res)
+
+    def test_isnat_error(self):
+        # Test that only datetime dtype arrays are accepted
+        for t in np.typecodes["All"]:
+            if t in np.typecodes["Datetime"]:
+                continue
+            assert_raises(TypeError, np.isnat, np.zeros(10, t))
+
+    def test_isfinite_scalar(self):
+        assert_(not np.isfinite(np.datetime64('NaT', 'ms')))
+        assert_(not np.isfinite(np.datetime64('NaT', 'ns')))
+        assert_(np.isfinite(np.datetime64('2038-01-19T03:14:07')))
+
+        assert_(not np.isfinite(np.timedelta64('NaT', "ms")))
+        assert_(np.isfinite(np.timedelta64(34, "ms")))
+
+    @pytest.mark.parametrize('unit', ['Y', 'M', 'W', 'D', 'h', 'm', 's', 'ms',
+                                      'us', 'ns', 'ps', 'fs', 'as'])
+    @pytest.mark.parametrize('dstr', ['<datetime64[%s]', '>datetime64[%s]',
+                                      '<timedelta64[%s]', '>timedelta64[%s]'])
+    def test_isfinite_isinf_isnan_units(self, unit, dstr):
+        '''check isfinite, isinf, isnan for all units of <M, >M, <m, >m dtypes
+        '''
+        arr_val = [123, -321, "NaT"]
+        arr = np.array(arr_val, dtype=(dstr % unit))
+        pos = np.array([True, True, False])
+        neg = np.array([False, False, True])
+        false = np.array([False, False, False])
+        assert_equal(np.isfinite(arr), pos)
+        assert_equal(np.isinf(arr), false)
+        assert_equal(np.isnan(arr), neg)
+
+    def test_assert_equal(self):
+        assert_raises(AssertionError, assert_equal,
+                np.datetime64('nat'), np.timedelta64('nat'))
+
+    def test_corecursive_input(self):
+        # construct a co-recursive list
+        a, b = [], []
+        a.append(b)
+        b.append(a)
+        obj_arr = np.array([None])
+        obj_arr[0] = a
+
+        # At some point this caused a stack overflow (gh-11154). Now raises
+        # ValueError since the nested list cannot be converted to a datetime.
+        assert_raises(ValueError, obj_arr.astype, 'M8')
+        assert_raises(ValueError, obj_arr.astype, 'm8')
+
+    @pytest.mark.parametrize("shape", [(), (1,)])
+    def test_discovery_from_object_array(self, shape):
+        arr = np.array("2020-10-10", dtype=object).reshape(shape)
+        res = np.array("2020-10-10", dtype="M8").reshape(shape)
+        assert res.dtype == np.dtype("M8[D]")
+        assert_equal(arr.astype("M8"), res)
+        arr[...] = np.bytes_("2020-10-10")  # try a numpy string type
+        assert_equal(arr.astype("M8"), res)
+        arr = arr.astype("S")
+        assert_equal(arr.astype("S").astype("M8"), res)
+
+    @pytest.mark.parametrize("time_unit", [
+        "Y", "M", "W", "D", "h", "m", "s", "ms", "us", "ns", "ps", "fs", "as",
+        # compound units
+        "10D", "2M",
+    ])
+    def test_limit_symmetry(self, time_unit):
+        """
+        Dates should have symmetric limits around the unix epoch at +/-np.int64
+        """
+        epoch = np.datetime64(0, time_unit)
+        latest = np.datetime64(np.iinfo(np.int64).max, time_unit)
+        earliest = np.datetime64(-np.iinfo(np.int64).max, time_unit)
+
+        # above should not have overflowed
+        assert earliest < epoch < latest
+
+    @pytest.mark.parametrize("time_unit", [
+        "Y", "M",
+        pytest.param("W", marks=pytest.mark.xfail(reason="gh-13197")),
+        "D", "h", "m",
+        "s", "ms", "us", "ns", "ps", "fs", "as",
+        pytest.param("10D", marks=pytest.mark.xfail(reason="similar to gh-13197")),
+    ])
+    @pytest.mark.parametrize("sign", [-1, 1])
+    def test_limit_str_roundtrip(self, time_unit, sign):
+        """
+        Limits should roundtrip when converted to strings.
+
+        This tests the conversion to and from npy_datetimestruct.
+        """
+        # TODO: add absolute (gold standard) time span limit strings
+        limit = np.datetime64(np.iinfo(np.int64).max * sign, time_unit)
+
+        # Convert to string and back. Explicit unit needed since the day and
+        # week reprs are not distinguishable.
+        limit_via_str = np.datetime64(str(limit), time_unit)
+        assert limit_via_str == limit
+
+    def test_datetime_hash_nat(self):
+        nat1 = np.datetime64()
+        nat2 = np.datetime64()
+        assert nat1 is not nat2
+        assert nat1 != nat2
+        assert hash(nat1) != hash(nat2)
+
+    @pytest.mark.parametrize('unit', ('Y', 'M', 'W', 'D', 'h', 'm', 's', 'ms', 'us'))
+    def test_datetime_hash_weeks(self, unit):
+        dt = np.datetime64(2348, 'W')  # 2015-01-01
+        dt2 = np.datetime64(dt, unit)
+        _assert_equal_hash(dt, dt2)
+
+        dt3 = np.datetime64(int(dt2.astype(int)) + 1, unit)
+        assert hash(dt) != hash(dt3)  # doesn't collide
+
+    @pytest.mark.parametrize('unit', ('h', 'm', 's', 'ms', 'us'))
+    def test_datetime_hash_weeks_vs_pydatetime(self, unit):
+        dt = np.datetime64(2348, 'W')  # 2015-01-01
+        dt2 = np.datetime64(dt, unit)
+        pydt = dt2.astype(datetime.datetime)
+        assert isinstance(pydt, datetime.datetime)
+        _assert_equal_hash(pydt, dt2)
+
+    @pytest.mark.parametrize('unit', ('Y', 'M', 'W', 'D', 'h', 'm', 's', 'ms', 'us'))
+    def test_datetime_hash_big_negative(self, unit):
+        dt = np.datetime64(-102894, 'W')  # -002-01-01
+        dt2 = np.datetime64(dt, unit)
+        _assert_equal_hash(dt, dt2)
+
+    # can only go down to "fs" before integer overflow
+    @pytest.mark.parametrize('unit', ('m', 's', 'ms', 'us', 'ns', 'ps', 'fs'))
+    def test_datetime_hash_minutes(self, unit):
+        dt = np.datetime64(3, 'm')
+        dt2 = np.datetime64(dt, unit)
+        _assert_equal_hash(dt, dt2)
+
+    @pytest.mark.parametrize('unit', ('ns', 'ps', 'fs', 'as'))
+    def test_datetime_hash_ns(self, unit):
+        dt = np.datetime64(3, 'ns')
+        dt2 = np.datetime64(dt, unit)
+        _assert_equal_hash(dt, dt2)
+
+        dt3 = np.datetime64(int(dt2.astype(int)) + 1, unit)
+        assert hash(dt) != hash(dt3)  # doesn't collide
+
+    @pytest.mark.parametrize('wk', range(500000, 500010))  # 11552-09-04
+    @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us'))
+    def test_datetime_hash_big_positive(self, wk, unit):
+        dt = np.datetime64(wk, 'W')
+        dt2 = np.datetime64(dt, unit)
+        _assert_equal_hash(dt, dt2)
+
+    def test_timedelta_hash_generic(self):
+        assert_raises(ValueError, hash, np.timedelta64(123))  # generic
+
+    @pytest.mark.parametrize('unit', ('Y', 'M'))
+    def test_timedelta_hash_year_month(self, unit):
+        td = np.timedelta64(45, 'Y')
+        td2 = np.timedelta64(td, unit)
+        _assert_equal_hash(td, td2)
+
+    @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us'))
+    def test_timedelta_hash_weeks(self, unit):
+        td = np.timedelta64(10, 'W')
+        td2 = np.timedelta64(td, unit)
+        _assert_equal_hash(td, td2)
+
+        td3 = np.timedelta64(int(td2.astype(int)) + 1, unit)
+        assert hash(td) != hash(td3)  # doesn't collide
+
+    @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us'))
+    def test_timedelta_hash_weeks_vs_pydelta(self, unit):
+        td = np.timedelta64(10, 'W')
+        td2 = np.timedelta64(td, unit)
+        pytd = td2.astype(datetime.timedelta)
+        assert isinstance(pytd, datetime.timedelta)
+        _assert_equal_hash(pytd, td2)
+
+    @pytest.mark.parametrize('unit', ('ms', 'us', 'ns', 'ps', 'fs', 'as'))
+    def test_timedelta_hash_ms(self, unit):
+        td = np.timedelta64(3, 'ms')
+        td2 = np.timedelta64(td, unit)
+        _assert_equal_hash(td, td2)
+
+        td3 = np.timedelta64(int(td2.astype(int)) + 1, unit)
+        assert hash(td) != hash(td3)  # doesn't collide
+
+    @pytest.mark.parametrize('wk', range(500000, 500010))
+    @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us'))
+    def test_timedelta_hash_big_positive(self, wk, unit):
+        td = np.timedelta64(wk, 'W')
+        td2 = np.timedelta64(td, unit)
+        _assert_equal_hash(td, td2)
+
+    @pytest.mark.parametrize(
+        "inputs, divisor, expected",
+        [
+            (
+                np.array(
+                    [datetime.timedelta(seconds=20), datetime.timedelta(days=2)],
+                    dtype="object",
+                ),
+                np.int64(2),
+                np.array(
+                    [datetime.timedelta(seconds=10), datetime.timedelta(days=1)],
+                    dtype="object",
+                ),
+            ),
+            (
+                np.array(
+                    [datetime.timedelta(seconds=20), datetime.timedelta(days=2)],
+                    dtype="object",
+                ),
+                np.timedelta64(2, "s"),
+                np.array(
+                    [10.0, 24.0 * 60.0 * 60.0],
+                    dtype="object",
+                ),
+            ),
+            (
+                datetime.timedelta(seconds=2),
+                np.array(
+                    [datetime.timedelta(seconds=20), datetime.timedelta(days=2)],
+                    dtype="object",
+                ),
+                np.array(
+                    [1.0 / 10.0, 1.0 / (24.0 * 60.0 * 60.0)],
+                    dtype="object",
+                ),
+            ),
+        ],
+    )
+    def test_true_divide_object_by_timedelta(
+        self,
+        inputs: np.ndarray | type[np.generic],
+        divisor: np.ndarray | type[np.generic],
+        expected: np.ndarray,
+    ):
+        # gh-30025
+        results = inputs / divisor
+        assert_array_equal(results, expected)
+
+
+class TestDateTimeData:
+
+    def test_basic(self):
+        a = np.array(['1980-03-23'], dtype=np.datetime64)
+        assert_equal(np.datetime_data(a.dtype), ('D', 1))
+
+    def test_bytes(self):
+        # byte units are converted to unicode
+        dt = np.datetime64('2000', (b'ms', 5))
+        assert np.datetime_data(dt.dtype) == ('ms', 5)
+
+        dt = np.datetime64('2000', b'5ms')
+        assert np.datetime_data(dt.dtype) == ('ms', 5)
+
+    def test_non_ascii(self):
+        # μs is normalized to μ
+        dt = np.datetime64('2000', ('μs', 5))
+        assert np.datetime_data(dt.dtype) == ('us', 5)
+
+        dt = np.datetime64('2000', '5μs')
+        assert np.datetime_data(dt.dtype) == ('us', 5)
+
+
+def test_comparisons_return_not_implemented():
+    # GH#17017
+
+    class custom:
+        __array_priority__ = 10000
+
+    obj = custom()
+
+    dt = np.datetime64('2000', 'ns')
+    td = dt - dt
+
+    for item in [dt, td]:
+        assert item.__eq__(obj) is NotImplemented
+        assert item.__ne__(obj) is NotImplemented
+        assert item.__le__(obj) is NotImplemented
+        assert item.__lt__(obj) is NotImplemented
+        assert item.__ge__(obj) is NotImplemented
+        assert item.__gt__(obj) is NotImplemented
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_defchararray.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_defchararray.py
new file mode 100644
index 0000000000000000000000000000000000000000..e45b6ffd659bc8854cb9f03d4e3b6390ae7e8026
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_defchararray.py
@@ -0,0 +1,858 @@
+import pytest
+
+import numpy as np
+from numpy._core.multiarray import _vec_string
+from numpy.testing import (
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+kw_unicode_true = {'unicode': True}  # make 2to3 work properly
+kw_unicode_false = {'unicode': False}
+
+class TestBasic:
+    def test_from_object_array(self):
+        A = np.array([['abc', 2],
+                      ['long   ', '0123456789']], dtype='O')
+        B = np.char.array(A)
+        assert_equal(B.dtype.itemsize, 10)
+        assert_array_equal(B, [[b'abc', b'2'],
+                               [b'long', b'0123456789']])
+
+    def test_from_object_array_unicode(self):
+        A = np.array([['abc', 'Sigma \u03a3'],
+                      ['long   ', '0123456789']], dtype='O')
+        assert_raises(ValueError, np.char.array, (A,))
+        B = np.char.array(A, **kw_unicode_true)
+        assert_equal(B.dtype.itemsize, 10 * np.array('a', 'U').dtype.itemsize)
+        assert_array_equal(B, [['abc', 'Sigma \u03a3'],
+                               ['long', '0123456789']])
+
+    def test_from_string_array(self):
+        A = np.array([[b'abc', b'foo'],
+                      [b'long   ', b'0123456789']])
+        assert_equal(A.dtype.type, np.bytes_)
+        B = np.char.array(A)
+        assert_array_equal(B, A)
+        assert_equal(B.dtype, A.dtype)
+        assert_equal(B.shape, A.shape)
+        B[0, 0] = 'changed'
+        assert_(B[0, 0] != A[0, 0])
+        C = np.char.asarray(A)
+        assert_array_equal(C, A)
+        assert_equal(C.dtype, A.dtype)
+        C[0, 0] = 'changed again'
+        assert_(C[0, 0] != B[0, 0])
+        assert_(C[0, 0] == A[0, 0])
+
+    def test_from_unicode_array(self):
+        A = np.array([['abc', 'Sigma \u03a3'],
+                      ['long   ', '0123456789']])
+        assert_equal(A.dtype.type, np.str_)
+        B = np.char.array(A)
+        assert_array_equal(B, A)
+        assert_equal(B.dtype, A.dtype)
+        assert_equal(B.shape, A.shape)
+        B = np.char.array(A, **kw_unicode_true)
+        assert_array_equal(B, A)
+        assert_equal(B.dtype, A.dtype)
+        assert_equal(B.shape, A.shape)
+
+        def fail():
+            np.char.array(A, **kw_unicode_false)
+
+        assert_raises(UnicodeEncodeError, fail)
+
+    def test_unicode_upconvert(self):
+        A = np.char.array(['abc'])
+        B = np.char.array(['\u03a3'])
+        assert_(issubclass((A + B).dtype.type, np.str_))
+
+    def test_from_string(self):
+        A = np.char.array(b'abc')
+        assert_equal(len(A), 1)
+        assert_equal(len(A[0]), 3)
+        assert_(issubclass(A.dtype.type, np.bytes_))
+
+    def test_from_unicode(self):
+        A = np.char.array('\u03a3')
+        assert_equal(len(A), 1)
+        assert_equal(len(A[0]), 1)
+        assert_equal(A.itemsize, 4)
+        assert_(issubclass(A.dtype.type, np.str_))
+
+class TestVecString:
+    def test_non_existent_method(self):
+
+        def fail():
+            _vec_string('a', np.bytes_, 'bogus')
+
+        assert_raises(AttributeError, fail)
+
+    def test_non_string_array(self):
+
+        def fail():
+            _vec_string(1, np.bytes_, 'strip')
+
+        assert_raises(TypeError, fail)
+
+    def test_invalid_args_tuple(self):
+
+        def fail():
+            _vec_string(['a'], np.bytes_, 'strip', 1)
+
+        assert_raises(TypeError, fail)
+
+    def test_invalid_type_descr(self):
+
+        def fail():
+            _vec_string(['a'], 'BOGUS', 'strip')
+
+        assert_raises(TypeError, fail)
+
+    def test_invalid_function_args(self):
+
+        def fail():
+            _vec_string(['a'], np.bytes_, 'strip', (1,))
+
+        assert_raises(TypeError, fail)
+
+    def test_invalid_result_type(self):
+
+        def fail():
+            _vec_string(['a'], np.int_, 'strip')
+
+        assert_raises(TypeError, fail)
+
+    def test_broadcast_error(self):
+
+        def fail():
+            _vec_string([['abc', 'def']], np.int_, 'find', (['a', 'd', 'j'],))
+
+        assert_raises(ValueError, fail)
+
+class TestWhitespace:
+    def test1(self):
+        A = np.array([['abc ', '123  '],
+                      ['789 ', 'xyz ']]).view(np.char.chararray)
+        B = np.array([['abc', '123'],
+                      ['789', 'xyz']]).view(np.char.chararray)
+        assert_(np.all(A == B))
+        assert_(np.all(A >= B))
+        assert_(np.all(A <= B))
+        assert_(not np.any(A > B))
+        assert_(not np.any(A < B))
+        assert_(not np.any(A != B))
+
+class TestChar:
+    def test_it(self):
+        A = np.array('abc1', dtype='c').view(np.char.chararray)
+        assert_equal(A.shape, (4,))
+        assert_equal(A.upper()[:2].tobytes(), b'AB')
+
+class TestComparisons:
+    def A(self):
+        return np.array([['abc', 'abcc', '123'],
+                         ['789', 'abc', 'xyz']]).view(np.char.chararray)
+
+    def B(self):
+        return np.array([['efg', 'efg', '123  '],
+                         ['051', 'efgg', 'tuv']]).view(np.char.chararray)
+
+    def test_not_equal(self):
+        A, B = self.A(), self.B()
+        assert_array_equal((A != B),
+                           [[True, True, False], [True, True, True]])
+
+    def test_equal(self):
+        A, B = self.A(), self.B()
+        assert_array_equal((A == B),
+                           [[False, False, True], [False, False, False]])
+
+    def test_greater_equal(self):
+        A, B = self.A(), self.B()
+        assert_array_equal((A >= B),
+                           [[False, False, True], [True, False, True]])
+
+    def test_less_equal(self):
+        A, B = self.A(), self.B()
+        assert_array_equal((A <= B),
+                           [[True, True, True], [False, True, False]])
+
+    def test_greater(self):
+        A, B = self.A(), self.B()
+        assert_array_equal((A > B),
+                           [[False, False, False], [True, False, True]])
+
+    def test_less(self):
+        A, B = self.A(), self.B()
+        assert_array_equal((A < B),
+                           [[True, True, False], [False, True, False]])
+
+    def test_type(self):
+        A, B = self.A(), self.B()
+        out1 = np.char.equal(A, B)
+        out2 = np.char.equal('a', 'a')
+        assert_(isinstance(out1, np.ndarray))
+        assert_(isinstance(out2, np.ndarray))
+
+class TestComparisonsMixed1(TestComparisons):
+    """Ticket #1276"""
+
+    def B(self):
+        return np.array(
+            [['efg', 'efg', '123  '],
+             ['051', 'efgg', 'tuv']], np.str_).view(np.char.chararray)
+
+class TestComparisonsMixed2(TestComparisons):
+    """Ticket #1276"""
+
+    def A(self):
+        return np.array(
+            [['abc', 'abcc', '123'],
+             ['789', 'abc', 'xyz']], np.str_).view(np.char.chararray)
+
+class TestInformation:
+    def A(self):
+        return np.array([[' abc ', ''],
+                         ['12345', 'MixedCase'],
+                         ['123 \t 345 \0 ', 'UPPER']]) \
+                          .view(np.char.chararray)
+
+    def B(self):
+        return np.array([[' \u03a3 ', ''],
+                         ['12345', 'MixedCase'],
+                         ['123 \t 345 \0 ', 'UPPER']]) \
+                          .view(np.char.chararray)
+
+    def test_len(self):
+        A, B = self.A(), self.B()
+        assert_(issubclass(np.char.str_len(A).dtype.type, np.integer))
+        assert_array_equal(np.char.str_len(A), [[5, 0], [5, 9], [12, 5]])
+        assert_array_equal(np.char.str_len(B), [[3, 0], [5, 9], [12, 5]])
+
+    def test_count(self):
+        A, B = self.A(), self.B()
+        assert_(issubclass(A.count('').dtype.type, np.integer))
+        assert_array_equal(A.count('a'), [[1, 0], [0, 1], [0, 0]])
+        assert_array_equal(A.count('123'), [[0, 0], [1, 0], [1, 0]])
+        # Python doesn't seem to like counting NULL characters
+        assert_array_equal(A.count('a', 0, 2), [[1, 0], [0, 0], [0, 0]])
+        assert_array_equal(B.count('a'), [[0, 0], [0, 1], [0, 0]])
+        assert_array_equal(B.count('123'), [[0, 0], [1, 0], [1, 0]])
+
+    def test_endswith(self):
+        A = self.A()
+        assert_(issubclass(A.endswith('').dtype.type, np.bool))
+        assert_array_equal(A.endswith(' '), [[1, 0], [0, 0], [1, 0]])
+        assert_array_equal(A.endswith('3', 0, 3), [[0, 0], [1, 0], [1, 0]])
+
+        def fail():
+            A.endswith('3', 'fdjk')
+
+        assert_raises(TypeError, fail)
+
+    @pytest.mark.parametrize(
+        "dtype, encode",
+        [("U", str),
+         ("S", lambda x: x.encode('ascii')),
+         ])
+    def test_find(self, dtype, encode):
+        A = self.A().astype(dtype)
+        assert_(issubclass(A.find(encode('a')).dtype.type, np.integer))
+        assert_array_equal(A.find(encode('a')),
+                           [[1, -1], [-1, 6], [-1, -1]])
+        assert_array_equal(A.find(encode('3')),
+                           [[-1, -1], [2, -1], [2, -1]])
+        assert_array_equal(A.find(encode('a'), 0, 2),
+                           [[1, -1], [-1, -1], [-1, -1]])
+        assert_array_equal(A.find([encode('1'), encode('P')]),
+                           [[-1, -1], [0, -1], [0, 1]])
+        C = (np.array(['ABCDEFGHIJKLMNOPQRSTUVWXYZ',
+                       '01234567890123456789012345'])
+                       .view(np.char.chararray)).astype(dtype)
+        assert_array_equal(C.find(encode('M')), [12, -1])
+
+    def test_index(self):
+        A = self.A()
+
+        def fail():
+            A.index('a')
+
+        assert_raises(ValueError, fail)
+        assert_(np.char.index('abcba', 'b') == 1)
+        assert_(issubclass(np.char.index('abcba', 'b').dtype.type, np.integer))
+
+    def test_isalnum(self):
+        A = self.A()
+        assert_(issubclass(A.isalnum().dtype.type, np.bool))
+        assert_array_equal(A.isalnum(), [[False, False], [True, True], [False, True]])
+
+    def test_isalpha(self):
+        A = self.A()
+        assert_(issubclass(A.isalpha().dtype.type, np.bool))
+        assert_array_equal(A.isalpha(), [[False, False], [False, True], [False, True]])
+
+    def test_isdigit(self):
+        A = self.A()
+        assert_(issubclass(A.isdigit().dtype.type, np.bool))
+        assert_array_equal(A.isdigit(), [[False, False], [True, False], [False, False]])
+
+    def test_islower(self):
+        A = self.A()
+        assert_(issubclass(A.islower().dtype.type, np.bool))
+        assert_array_equal(A.islower(), [[True, False], [False, False], [False, False]])
+
+    def test_isspace(self):
+        A = self.A()
+        assert_(issubclass(A.isspace().dtype.type, np.bool))
+        assert_array_equal(A.isspace(), [[False, False], [False, False], [False, False]])
+
+    def test_istitle(self):
+        A = self.A()
+        assert_(issubclass(A.istitle().dtype.type, np.bool))
+        assert_array_equal(A.istitle(), [[False, False], [False, False], [False, False]])
+
+    def test_isupper(self):
+        A = self.A()
+        assert_(issubclass(A.isupper().dtype.type, np.bool))
+        assert_array_equal(A.isupper(), [[False, False], [False, False], [False, True]])
+
+    def test_rfind(self):
+        A = self.A()
+        assert_(issubclass(A.rfind('a').dtype.type, np.integer))
+        assert_array_equal(A.rfind('a'), [[1, -1], [-1, 6], [-1, -1]])
+        assert_array_equal(A.rfind('3'), [[-1, -1], [2, -1], [6, -1]])
+        assert_array_equal(A.rfind('a', 0, 2), [[1, -1], [-1, -1], [-1, -1]])
+        assert_array_equal(A.rfind(['1', 'P']), [[-1, -1], [0, -1], [0, 2]])
+
+    def test_rindex(self):
+        A = self.A()
+
+        def fail():
+            A.rindex('a')
+
+        assert_raises(ValueError, fail)
+        assert_(np.char.rindex('abcba', 'b') == 3)
+        assert_(issubclass(np.char.rindex('abcba', 'b').dtype.type, np.integer))
+
+    def test_startswith(self):
+        A = self.A()
+        assert_(issubclass(A.startswith('').dtype.type, np.bool))
+        assert_array_equal(A.startswith(' '), [[1, 0], [0, 0], [0, 0]])
+        assert_array_equal(A.startswith('1', 0, 3), [[0, 0], [1, 0], [1, 0]])
+
+        def fail():
+            A.startswith('3', 'fdjk')
+
+        assert_raises(TypeError, fail)
+
+class TestMethods:
+    def A(self):
+        return np.array([[' abc ', ''],
+                         ['12345', 'MixedCase'],
+                         ['123 \t 345 \0 ', 'UPPER']],
+                         dtype='S').view(np.char.chararray)
+
+    def B(self):
+        return np.array([[' \u03a3 ', ''],
+                         ['12345', 'MixedCase'],
+                         ['123 \t 345 \0 ', 'UPPER']]) \
+                          .view(np.char.chararray)
+
+    def test_capitalize(self):
+        A, B = self.A(), self.B()
+        tgt = [[b' abc ', b''],
+               [b'12345', b'Mixedcase'],
+               [b'123 \t 345 \0 ', b'Upper']]
+        assert_(issubclass(A.capitalize().dtype.type, np.bytes_))
+        assert_array_equal(A.capitalize(), tgt)
+
+        tgt = [[' \u03c3 ', ''],
+               ['12345', 'Mixedcase'],
+               ['123 \t 345 \0 ', 'Upper']]
+        assert_(issubclass(B.capitalize().dtype.type, np.str_))
+        assert_array_equal(B.capitalize(), tgt)
+
+    def test_center(self):
+        A = self.A()
+        assert_(issubclass(A.center(10).dtype.type, np.bytes_))
+        C = A.center([10, 20])
+        assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]])
+
+        C = A.center(20, b'#')
+        assert_(np.all(C.startswith(b'#')))
+        assert_(np.all(C.endswith(b'#')))
+
+        C = np.char.center(b'FOO', [[10, 20], [15, 8]])
+        tgt = [[b'   FOO    ', b'        FOO         '],
+               [b'      FOO      ', b'  FOO   ']]
+        assert_(issubclass(C.dtype.type, np.bytes_))
+        assert_array_equal(C, tgt)
+
+    def test_decode(self):
+        A = np.char.array([b'\\u03a3'])
+        assert_(A.decode('unicode-escape')[0] == '\u03a3')
+
+    def test_encode(self):
+        B = self.B().encode('unicode_escape')
+        assert_(B[0][0] == ' \\u03a3 '.encode('latin1'))
+
+    def test_expandtabs(self):
+        T = self.A().expandtabs()
+        assert_(T[2, 0] == b'123      345 \0')
+
+    def test_join(self):
+        # NOTE: list(b'123') == [49, 50, 51]
+        #       so that b','.join(b'123') results to an error on Py3
+        A0 = self.A().decode('ascii')
+
+        A = np.char.join([',', '#'], A0)
+        assert_(issubclass(A.dtype.type, np.str_))
+        tgt = np.array([[' ,a,b,c, ', ''],
+                        ['1,2,3,4,5', 'M#i#x#e#d#C#a#s#e'],
+                        ['1,2,3, ,\t, ,3,4,5, ,\x00, ', 'U#P#P#E#R']])
+        assert_array_equal(np.char.join([',', '#'], A0), tgt)
+
+    def test_ljust(self):
+        A = self.A()
+        assert_(issubclass(A.ljust(10).dtype.type, np.bytes_))
+
+        C = A.ljust([10, 20])
+        assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]])
+
+        C = A.ljust(20, b'#')
+        assert_array_equal(C.startswith(b'#'), [
+                [False, True], [False, False], [False, False]])
+        assert_(np.all(C.endswith(b'#')))
+
+        C = np.char.ljust(b'FOO', [[10, 20], [15, 8]])
+        tgt = [[b'FOO       ', b'FOO                 '],
+               [b'FOO            ', b'FOO     ']]
+        assert_(issubclass(C.dtype.type, np.bytes_))
+        assert_array_equal(C, tgt)
+
+    def test_lower(self):
+        A, B = self.A(), self.B()
+        tgt = [[b' abc ', b''],
+               [b'12345', b'mixedcase'],
+               [b'123 \t 345 \0 ', b'upper']]
+        assert_(issubclass(A.lower().dtype.type, np.bytes_))
+        assert_array_equal(A.lower(), tgt)
+
+        tgt = [[' \u03c3 ', ''],
+               ['12345', 'mixedcase'],
+               ['123 \t 345 \0 ', 'upper']]
+        assert_(issubclass(B.lower().dtype.type, np.str_))
+        assert_array_equal(B.lower(), tgt)
+
+    def test_lstrip(self):
+        A, B = self.A(), self.B()
+        tgt = [[b'abc ', b''],
+               [b'12345', b'MixedCase'],
+               [b'123 \t 345 \0 ', b'UPPER']]
+        assert_(issubclass(A.lstrip().dtype.type, np.bytes_))
+        assert_array_equal(A.lstrip(), tgt)
+
+        tgt = [[b' abc', b''],
+               [b'2345', b'ixedCase'],
+               [b'23 \t 345 \x00', b'UPPER']]
+        assert_array_equal(A.lstrip([b'1', b'M']), tgt)
+
+        tgt = [['\u03a3 ', ''],
+               ['12345', 'MixedCase'],
+               ['123 \t 345 \0 ', 'UPPER']]
+        assert_(issubclass(B.lstrip().dtype.type, np.str_))
+        assert_array_equal(B.lstrip(), tgt)
+
+    def test_partition(self):
+        A = self.A()
+        P = A.partition([b'3', b'M'])
+        tgt = [[(b' abc ', b'', b''), (b'', b'', b'')],
+               [(b'12', b'3', b'45'), (b'', b'M', b'ixedCase')],
+               [(b'12', b'3', b' \t 345 \0 '), (b'UPPER', b'', b'')]]
+        assert_(issubclass(P.dtype.type, np.bytes_))
+        assert_array_equal(P, tgt)
+
+    def test_replace(self):
+        A = self.A()
+        R = A.replace([b'3', b'a'],
+                           [b'##########', b'@'])
+        tgt = [[b' abc ', b''],
+               [b'12##########45', b'MixedC@se'],
+               [b'12########## \t ##########45 \x00 ', b'UPPER']]
+        assert_(issubclass(R.dtype.type, np.bytes_))
+        assert_array_equal(R, tgt)
+        # Test special cases that should just return the input array,
+        # since replacements are not possible or do nothing.
+        S1 = A.replace(b'A very long byte string, longer than A', b'')
+        assert_array_equal(S1, A)
+        S2 = A.replace(b'', b'')
+        assert_array_equal(S2, A)
+        S3 = A.replace(b'3', b'3')
+        assert_array_equal(S3, A)
+        S4 = A.replace(b'3', b'', count=0)
+        assert_array_equal(S4, A)
+
+    def test_replace_count_and_size(self):
+        a = np.array(['0123456789' * i for i in range(4)]
+                     ).view(np.char.chararray)
+        r1 = a.replace('5', 'ABCDE')
+        assert r1.dtype.itemsize == (3 * 10 + 3 * 4) * 4
+        assert_array_equal(r1, np.array(['01234ABCDE6789' * i
+                                         for i in range(4)]))
+        r2 = a.replace('5', 'ABCDE', count=1)
+        assert r2.dtype.itemsize == (3 * 10 + 4) * 4
+        r3 = a.replace('5', 'ABCDE', count=0)
+        assert r3.dtype.itemsize == a.dtype.itemsize
+        assert_array_equal(r3, a)
+        # Negative values mean to replace all.
+        r4 = a.replace('5', 'ABCDE', count=-1)
+        assert r4.dtype.itemsize == (3 * 10 + 3 * 4) * 4
+        assert_array_equal(r4, r1)
+        # We can do count on an element-by-element basis.
+        r5 = a.replace('5', 'ABCDE', count=[-1, -1, -1, 1])
+        assert r5.dtype.itemsize == (3 * 10 + 4) * 4
+        assert_array_equal(r5, np.array(
+            ['01234ABCDE6789' * i for i in range(3)]
+            + ['01234ABCDE6789' + '0123456789' * 2]))
+
+    def test_replace_broadcasting(self):
+        a = np.array('0,0,0').view(np.char.chararray)
+        r1 = a.replace('0', '1', count=np.arange(3))
+        assert r1.dtype == a.dtype
+        assert_array_equal(r1, np.array(['0,0,0', '1,0,0', '1,1,0']))
+        r2 = a.replace('0', [['1'], ['2']], count=np.arange(1, 4))
+        assert_array_equal(r2, np.array([['1,0,0', '1,1,0', '1,1,1'],
+                                         ['2,0,0', '2,2,0', '2,2,2']]))
+        r3 = a.replace(['0', '0,0', '0,0,0'], 'X')
+        assert_array_equal(r3, np.array(['X,X,X', 'X,0', 'X']))
+
+    def test_rjust(self):
+        A = self.A()
+        assert_(issubclass(A.rjust(10).dtype.type, np.bytes_))
+
+        C = A.rjust([10, 20])
+        assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]])
+
+        C = A.rjust(20, b'#')
+        assert_(np.all(C.startswith(b'#')))
+        assert_array_equal(C.endswith(b'#'),
+                           [[False, True], [False, False], [False, False]])
+
+        C = np.char.rjust(b'FOO', [[10, 20], [15, 8]])
+        tgt = [[b'       FOO', b'                 FOO'],
+               [b'            FOO', b'     FOO']]
+        assert_(issubclass(C.dtype.type, np.bytes_))
+        assert_array_equal(C, tgt)
+
+    def test_rpartition(self):
+        A = self.A()
+        P = A.rpartition([b'3', b'M'])
+        tgt = [[(b'', b'', b' abc '), (b'', b'', b'')],
+               [(b'12', b'3', b'45'), (b'', b'M', b'ixedCase')],
+               [(b'123 \t ', b'3', b'45 \0 '), (b'', b'', b'UPPER')]]
+        assert_(issubclass(P.dtype.type, np.bytes_))
+        assert_array_equal(P, tgt)
+
+    def test_rsplit(self):
+        A = self.A().rsplit(b'3')
+        tgt = [[[b' abc '], [b'']],
+               [[b'12', b'45'], [b'MixedCase']],
+               [[b'12', b' \t ', b'45 \x00 '], [b'UPPER']]]
+        assert_(issubclass(A.dtype.type, np.object_))
+        assert_equal(A.tolist(), tgt)
+
+    def test_rstrip(self):
+        A, B = self.A(), self.B()
+        assert_(issubclass(A.rstrip().dtype.type, np.bytes_))
+
+        tgt = [[b' abc', b''],
+               [b'12345', b'MixedCase'],
+               [b'123 \t 345', b'UPPER']]
+        assert_array_equal(A.rstrip(), tgt)
+
+        tgt = [[b' abc ', b''],
+               [b'1234', b'MixedCase'],
+               [b'123 \t 345 \x00', b'UPP']
+               ]
+        assert_array_equal(A.rstrip([b'5', b'ER']), tgt)
+
+        tgt = [[' \u03a3', ''],
+               ['12345', 'MixedCase'],
+               ['123 \t 345', 'UPPER']]
+        assert_(issubclass(B.rstrip().dtype.type, np.str_))
+        assert_array_equal(B.rstrip(), tgt)
+
+    def test_strip(self):
+        A, B = self.A(), self.B()
+        tgt = [[b'abc', b''],
+               [b'12345', b'MixedCase'],
+               [b'123 \t 345', b'UPPER']]
+        assert_(issubclass(A.strip().dtype.type, np.bytes_))
+        assert_array_equal(A.strip(), tgt)
+
+        tgt = [[b' abc ', b''],
+               [b'234', b'ixedCas'],
+               [b'23 \t 345 \x00', b'UPP']]
+        assert_array_equal(A.strip([b'15', b'EReM']), tgt)
+
+        tgt = [['\u03a3', ''],
+               ['12345', 'MixedCase'],
+               ['123 \t 345', 'UPPER']]
+        assert_(issubclass(B.strip().dtype.type, np.str_))
+        assert_array_equal(B.strip(), tgt)
+
+    def test_split(self):
+        A = self.A().split(b'3')
+        tgt = [
+               [[b' abc '], [b'']],
+               [[b'12', b'45'], [b'MixedCase']],
+               [[b'12', b' \t ', b'45 \x00 '], [b'UPPER']]]
+        assert_(issubclass(A.dtype.type, np.object_))
+        assert_equal(A.tolist(), tgt)
+
+    def test_splitlines(self):
+        A = np.char.array(['abc\nfds\nwer']).splitlines()
+        assert_(issubclass(A.dtype.type, np.object_))
+        assert_(A.shape == (1,))
+        assert_(len(A[0]) == 3)
+
+    def test_swapcase(self):
+        A, B = self.A(), self.B()
+        tgt = [[b' ABC ', b''],
+               [b'12345', b'mIXEDcASE'],
+               [b'123 \t 345 \0 ', b'upper']]
+        assert_(issubclass(A.swapcase().dtype.type, np.bytes_))
+        assert_array_equal(A.swapcase(), tgt)
+
+        tgt = [[' \u03c3 ', ''],
+               ['12345', 'mIXEDcASE'],
+               ['123 \t 345 \0 ', 'upper']]
+        assert_(issubclass(B.swapcase().dtype.type, np.str_))
+        assert_array_equal(B.swapcase(), tgt)
+
+    def test_title(self):
+        A, B = self.A(), self.B()
+        tgt = [[b' Abc ', b''],
+               [b'12345', b'Mixedcase'],
+               [b'123 \t 345 \0 ', b'Upper']]
+        assert_(issubclass(A.title().dtype.type, np.bytes_))
+        assert_array_equal(A.title(), tgt)
+
+        tgt = [[' \u03a3 ', ''],
+               ['12345', 'Mixedcase'],
+               ['123 \t 345 \0 ', 'Upper']]
+        assert_(issubclass(B.title().dtype.type, np.str_))
+        assert_array_equal(B.title(), tgt)
+
+    def test_upper(self):
+        A, B = self.A(), self.B()
+        tgt = [[b' ABC ', b''],
+               [b'12345', b'MIXEDCASE'],
+               [b'123 \t 345 \0 ', b'UPPER']]
+        assert_(issubclass(A.upper().dtype.type, np.bytes_))
+        assert_array_equal(A.upper(), tgt)
+
+        tgt = [[' \u03a3 ', ''],
+               ['12345', 'MIXEDCASE'],
+               ['123 \t 345 \0 ', 'UPPER']]
+        assert_(issubclass(B.upper().dtype.type, np.str_))
+        assert_array_equal(B.upper(), tgt)
+
+    def test_isnumeric(self):
+        A, B = self.A(), self.B()
+
+        def fail():
+            A.isnumeric()
+
+        assert_raises(TypeError, fail)
+        assert_(issubclass(B.isnumeric().dtype.type, np.bool))
+        assert_array_equal(B.isnumeric(), [
+                [False, False], [True, False], [False, False]])
+
+    def test_isdecimal(self):
+        A, B = self.A(), self.B()
+
+        def fail():
+            A.isdecimal()
+
+        assert_raises(TypeError, fail)
+        assert_(issubclass(B.isdecimal().dtype.type, np.bool))
+        assert_array_equal(B.isdecimal(), [
+                [False, False], [True, False], [False, False]])
+
+class TestOperations:
+    def A(self):
+        return np.array([['abc', '123'],
+                         ['789', 'xyz']]).view(np.char.chararray)
+
+    def B(self):
+        return np.array([['efg', '456'],
+                         ['051', 'tuv']]).view(np.char.chararray)
+
+    def test_argsort(self):
+        arr = np.array(['abc'] * 4).view(np.char.chararray)
+        actual = arr.argsort(stable=True)
+        assert_array_equal(actual, [0, 1, 2, 3])
+
+    def test_add(self):
+        A, B = self.A(), self.B()
+        AB = np.array([['abcefg', '123456'],
+                       ['789051', 'xyztuv']]).view(np.char.chararray)
+        assert_array_equal(AB, (A + B))
+        assert_(len((A + B)[0][0]) == 6)
+
+    def test_radd(self):
+        A = self.A()
+        QA = np.array([['qabc', 'q123'],
+                       ['q789', 'qxyz']]).view(np.char.chararray)
+        assert_array_equal(QA, ('q' + A))
+
+    def test_mul(self):
+        A = self.A()
+        for r in (2, 3, 5, 7, 197):
+            Ar = np.array([[A[0, 0] * r, A[0, 1] * r],
+                           [A[1, 0] * r, A[1, 1] * r]]).view(np.char.chararray)
+
+            assert_array_equal(Ar, (A * r))
+
+        for ob in [object(), 'qrs']:
+            with assert_raises_regex(ValueError,
+                                     'Can only multiply by integers'):
+                A * ob
+
+    def test_rmul(self):
+        A = self.A()
+        for r in (2, 3, 5, 7, 197):
+            Ar = np.array([[A[0, 0] * r, A[0, 1] * r],
+                           [A[1, 0] * r, A[1, 1] * r]]).view(np.char.chararray)
+            assert_array_equal(Ar, (r * A))
+
+        for ob in [object(), 'qrs']:
+            with assert_raises_regex(ValueError,
+                                     'Can only multiply by integers'):
+                ob * A
+
+    def test_mod(self):
+        """Ticket #856"""
+        F = np.array([['%d', '%f'], ['%s', '%r']]).view(np.char.chararray)
+        C = np.array([[3, 7], [19, 1]], dtype=np.int64)
+        FC = np.array([['3', '7.000000'],
+                       ['19', 'np.int64(1)']]).view(np.char.chararray)
+        assert_array_equal(FC, F % C)
+
+        A = np.array([['%.3f', '%d'], ['%s', '%r']]).view(np.char.chararray)
+        A1 = np.array([['1.000', '1'],
+                       ['1', repr(np.array(1)[()])]]).view(np.char.chararray)
+        assert_array_equal(A1, (A % 1))
+
+        A2 = np.array([['1.000', '2'],
+                       ['3', repr(np.array(4)[()])]]).view(np.char.chararray)
+        assert_array_equal(A2, (A % [[1, 2], [3, 4]]))
+
+    def test_rmod(self):
+        A = self.A()
+        assert_(f"{A}" == str(A))
+        assert_(f"{A!r}" == repr(A))
+
+        for ob in [42, object()]:
+            with assert_raises_regex(
+                    TypeError, "unsupported operand type.* and 'chararray'"):
+                ob % A
+
+    def test_slice(self):
+        """Regression test for https://github.com/numpy/numpy/issues/5982"""
+
+        arr = np.array([['abc ', 'def '], ['geh ', 'ijk ']],
+                       dtype='S4').view(np.char.chararray)
+        sl1 = arr[:]
+        assert_array_equal(sl1, arr)
+        assert_(sl1.base is arr)
+        assert_(sl1.base.base is arr.base)
+
+        sl2 = arr[:, :]
+        assert_array_equal(sl2, arr)
+        assert_(sl2.base is arr)
+        assert_(sl2.base.base is arr.base)
+
+        assert_(arr[0, 0] == b'abc')
+
+    @pytest.mark.parametrize('data', [['plate', '   ', 'shrimp'],
+                                      [b'retro', b'  ', b'encabulator']])
+    def test_getitem_length_zero_item(self, data):
+        # Regression test for gh-26375.
+        a = np.char.array(data)
+        # a.dtype.type() will be an empty string or bytes instance.
+        # The equality test will fail if a[1] has the wrong type
+        # or does not have length 0.
+        assert_equal(a[1], a.dtype.type())
+
+class TestMethodsEmptyArray:
+    def test_encode(self):
+        res = np.char.encode(np.array([], dtype='U'))
+        assert_array_equal(res, [])
+        assert_(res.dtype.char == 'S')
+
+    def test_decode(self):
+        res = np.char.decode(np.array([], dtype='S'))
+        assert_array_equal(res, [])
+        assert_(res.dtype.char == 'U')
+
+    def test_decode_with_reshape(self):
+        res = np.char.decode(np.array([], dtype='S').reshape((1, 0, 1)))
+        assert_(res.shape == (1, 0, 1))
+
+class TestMethodsScalarValues:
+    def test_mod(self):
+        A = np.array([[' abc ', ''],
+                      ['12345', 'MixedCase'],
+                      ['123 \t 345 \0 ', 'UPPER']], dtype='S')
+        tgt = [[b'123 abc ', b'123'],
+               [b'12312345', b'123MixedCase'],
+               [b'123123 \t 345 \0 ', b'123UPPER']]
+        assert_array_equal(np.char.mod(b"123%s", A), tgt)
+
+    def test_decode(self):
+        bytestring = b'\x81\xc1\x81\xc1\x81\xc1'
+        assert_equal(np.char.decode(bytestring, encoding='cp037'),
+                     'aAaAaA')
+
+    def test_encode(self):
+        unicode = 'aAaAaA'
+        assert_equal(np.char.encode(unicode, encoding='cp037'),
+                     b'\x81\xc1\x81\xc1\x81\xc1')
+
+    def test_expandtabs(self):
+        s = "\tone level of indentation\n\t\ttwo levels of indentation"
+        assert_equal(
+            np.char.expandtabs(s, tabsize=2),
+            "  one level of indentation\n    two levels of indentation"
+        )
+
+    def test_join(self):
+        seps = np.array(['-', '_'])
+        assert_array_equal(np.char.join(seps, 'hello'),
+                           ['h-e-l-l-o', 'h_e_l_l_o'])
+
+    def test_partition(self):
+        assert_equal(np.char.partition('This string', ' '),
+                     ['This', ' ', 'string'])
+
+    def test_rpartition(self):
+        assert_equal(np.char.rpartition('This string here', ' '),
+                     ['This string', ' ', 'here'])
+
+    def test_replace(self):
+        assert_equal(np.char.replace('Python is good', 'good', 'great'),
+                     'Python is great')
+
+def test_empty_indexing():
+    """Regression test for ticket 1948."""
+    # Check that indexing a chararray with an empty list/array returns an
+    # empty chararray instead of a chararray with a single empty string in it.
+    s = np.char.chararray((4,))
+    assert_(s[[]].size == 0)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_deprecations.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_deprecations.py
new file mode 100644
index 0000000000000000000000000000000000000000..0d4ad034bc36a07d03f3fe2bff4a74066b1ccb06
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_deprecations.py
@@ -0,0 +1,460 @@
+"""
+Tests related to deprecation warnings. Also a convenient place
+to document how deprecations should eventually be turned into errors.
+
+"""
+import contextlib
+import warnings
+
+import pytest
+
+import numpy as np
+import numpy._core._struct_ufunc_tests as struct_ufunc
+from numpy._core._multiarray_tests import fromstring_null_term_c_api  # noqa: F401
+from numpy.testing import assert_raises
+
+
+class _DeprecationTestCase:
+    # Just as warning: warnings uses re.match, so the start of this message
+    # must match.
+    message = ''
+    warning_cls = DeprecationWarning
+
+    @contextlib.contextmanager
+    def filter_warnings(self):
+        with warnings.catch_warnings(record=True) as w:
+            # Do *not* ignore other DeprecationWarnings. Ignoring warnings
+            # can give very confusing results because of
+            # https://bugs.python.org/issue4180 and it is probably simplest to
+            # try to keep the tests cleanly giving only the right warning type.
+            # (While checking them set to "error" those are ignored anyway)
+            # We still have them show up, because otherwise they would be raised
+            warnings.filterwarnings("always", category=self.warning_cls)
+            warnings.filterwarnings("always", message=self.message,
+                                    category=self.warning_cls)
+            yield w
+        return
+
+    def assert_deprecated(self, function, num=1, ignore_others=False,
+                          function_fails=False,
+                          exceptions=np._NoValue,
+                          args=(), kwargs={}):
+        """Test if DeprecationWarnings are given and raised.
+
+        This first checks if the function when called gives `num`
+        DeprecationWarnings, after that it tries to raise these
+        DeprecationWarnings and compares them with `exceptions`.
+        The exceptions can be different for cases where this code path
+        is simply not anticipated and the exception is replaced.
+
+        Parameters
+        ----------
+        function : callable
+            The function to test
+        num : int
+            Number of DeprecationWarnings to expect. This should normally be 1.
+        ignore_others : bool
+            Whether warnings of the wrong type should be ignored (note that
+            the message is not checked)
+        function_fails : bool
+            If the function would normally fail, setting this will check for
+            warnings inside a try/except block.
+        exceptions : Exception or tuple of Exceptions
+            Exception to expect when turning the warnings into an error.
+            The default checks for DeprecationWarnings. If exceptions is
+            empty the function is expected to run successfully.
+        args : tuple
+            Arguments for `function`
+        kwargs : dict
+            Keyword arguments for `function`
+        """
+        __tracebackhide__ = True  # Hide traceback for py.test
+
+        if exceptions is np._NoValue:
+            exceptions = (self.warning_cls,)
+
+        if function_fails:
+            context_manager = contextlib.suppress(Exception)
+        else:
+            context_manager = contextlib.nullcontext()
+        with context_manager:
+            with self.filter_warnings() as w_context:
+                function(*args, **kwargs)
+
+        # just in case, clear the registry
+        num_found = 0
+        for warning in w_context:
+            if warning.category is self.warning_cls:
+                num_found += 1
+            elif not ignore_others:
+                raise AssertionError(
+                        "expected %s but got: %s" %
+                        (self.warning_cls.__name__, warning.category))
+        if num is not None and num_found != num:
+            msg = f"{len(w_context)} warnings found but {num} expected."
+            lst = [str(w) for w in w_context]
+            raise AssertionError("\n".join([msg] + lst))
+
+        with warnings.catch_warnings():
+            warnings.filterwarnings("error", message=self.message,
+                                    category=self.warning_cls)
+            try:
+                function(*args, **kwargs)
+                if exceptions != ():
+                    raise AssertionError(
+                            "No error raised during function call")
+            except exceptions:
+                if exceptions == ():
+                    raise AssertionError(
+                            "Error raised during function call")
+
+    def assert_not_deprecated(self, function, args=(), kwargs={}):
+        """Test that warnings are not raised.
+
+        This is just a shorthand for:
+
+        self.assert_deprecated(function, num=0, ignore_others=True,
+                        exceptions=tuple(), args=args, kwargs=kwargs)
+        """
+        self.assert_deprecated(function, num=0, ignore_others=True,
+                        exceptions=(), args=args, kwargs=kwargs)
+
+
+class _VisibleDeprecationTestCase(_DeprecationTestCase):
+    warning_cls = np.exceptions.VisibleDeprecationWarning
+
+
+class TestTestDeprecated:
+    def test_assert_deprecated(self):
+        test_case_instance = _DeprecationTestCase()
+        assert_raises(AssertionError,
+                      test_case_instance.assert_deprecated,
+                      lambda: None)
+
+        def foo():
+            warnings.warn("foo", category=DeprecationWarning, stacklevel=2)
+
+        test_case_instance.assert_deprecated(foo)
+
+
+class TestBincount(_DeprecationTestCase):
+    # 2024-07-29, 2.1.0
+    @pytest.mark.parametrize('badlist', [[0.5, 1.2, 1.5],
+                                         ['0', '1', '1']])
+    def test_bincount_bad_list(self, badlist):
+        self.assert_deprecated(lambda: np.bincount(badlist))
+
+
+class BuiltInRoundComplexDType(_DeprecationTestCase):
+    # 2020-03-31 1.19.0
+    deprecated_types = [np.csingle, np.cdouble, np.clongdouble]
+    not_deprecated_types = [
+        np.int8, np.int16, np.int32, np.int64,
+        np.uint8, np.uint16, np.uint32, np.uint64,
+        np.float16, np.float32, np.float64,
+    ]
+
+    def test_deprecated(self):
+        for scalar_type in self.deprecated_types:
+            scalar = scalar_type(0)
+            self.assert_deprecated(round, args=(scalar,))
+            self.assert_deprecated(round, args=(scalar, 0))
+            self.assert_deprecated(round, args=(scalar,), kwargs={'ndigits': 0})
+
+    def test_not_deprecated(self):
+        for scalar_type in self.not_deprecated_types:
+            scalar = scalar_type(0)
+            self.assert_not_deprecated(round, args=(scalar,))
+            self.assert_not_deprecated(round, args=(scalar, 0))
+            self.assert_not_deprecated(round, args=(scalar,), kwargs={'ndigits': 0})
+
+
+class FlatteningConcatenateUnsafeCast(_DeprecationTestCase):
+    # NumPy 1.20, 2020-09-03
+    message = "concatenate with `axis=None` will use same-kind casting"
+
+    def test_deprecated(self):
+        self.assert_deprecated(np.concatenate,
+                args=(([0.], [1.]),),
+                kwargs={'axis': None, 'out': np.empty(2, dtype=np.int64)})
+
+    def test_not_deprecated(self):
+        self.assert_not_deprecated(np.concatenate,
+                args=(([0.], [1.]),),
+                kwargs={'axis': None, 'out': np.empty(2, dtype=np.int64),
+                        'casting': "unsafe"})
+
+        with assert_raises(TypeError):
+            # Tests should notice if the deprecation warning is given first...
+            np.concatenate(([0.], [1.]), out=np.empty(2, dtype=np.int64),
+                           casting="same_kind")
+
+
+class TestCtypesGetter(_DeprecationTestCase):
+    ctypes = np.array([1]).ctypes
+
+    @pytest.mark.parametrize("name", ["data", "shape", "strides", "_as_parameter_"])
+    def test_not_deprecated(self, name: str) -> None:
+        self.assert_not_deprecated(lambda: getattr(self.ctypes, name))
+
+
+class TestPyIntConversion(_DeprecationTestCase):
+    message = r".*stop allowing conversion of out-of-bound.*"
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+    def test_deprecated_scalar(self, dtype):
+        dtype = np.dtype(dtype)
+        info = np.iinfo(dtype)
+
+        # Cover the most common creation paths (all end up in the
+        # same place):
+        def scalar(value, dtype):
+            dtype.type(value)
+
+        def assign(value, dtype):
+            arr = np.array([0, 0, 0], dtype=dtype)
+            arr[2] = value
+
+        def create(value, dtype):
+            np.array([value], dtype=dtype)
+
+        for creation_func in [scalar, assign, create]:
+            try:
+                self.assert_deprecated(
+                        lambda: creation_func(info.min - 1, dtype))
+            except OverflowError:
+                pass  # OverflowErrors always happened also before and are OK.
+
+            try:
+                self.assert_deprecated(
+                        lambda: creation_func(info.max + 1, dtype))
+            except OverflowError:
+                pass  # OverflowErrors always happened also before and are OK.
+
+
+@pytest.mark.parametrize("name", ["str", "bytes", "object"])
+def test_future_scalar_attributes(name):
+    # FutureWarning added 2022-11-17, NumPy 1.24,
+    assert name not in dir(np)  # we may want to not add them
+    with pytest.warns(FutureWarning,
+            match=f"In the future .*{name}"):
+        assert not hasattr(np, name)
+
+    # Unfortunately, they are currently still valid via `np.dtype()`
+    np.dtype(name)
+    name in np._core.sctypeDict
+
+
+# Ignore the above future attribute warning for this test.
+@pytest.mark.filterwarnings("ignore:In the future:FutureWarning")
+class TestRemovedGlobals:
+    # Removed 2023-01-12, NumPy 1.24.0
+    # Not a deprecation, but the large error was added to aid those who missed
+    # the previous deprecation, and should be removed similarly to one
+    # (or faster).
+    @pytest.mark.parametrize("name",
+            ["object", "float", "complex", "str", "int"])
+    def test_attributeerror_includes_info(self, name):
+        msg = f".*\n`np.{name}` was a deprecated alias for the builtin"
+        with pytest.raises(AttributeError, match=msg):
+            getattr(np, name)
+
+
+class TestDeprecatedFinfo(_DeprecationTestCase):
+    # Deprecated in NumPy 1.25, 2023-01-16
+    def test_deprecated_none(self):
+        self.assert_deprecated(np.finfo, args=(None,))
+
+
+class TestMathAlias(_DeprecationTestCase):
+    def test_deprecated_np_lib_math(self):
+        self.assert_deprecated(lambda: np.lib.math)
+
+
+class TestLibImports(_DeprecationTestCase):
+    # Deprecated in Numpy 1.26.0, 2023-09
+    def test_lib_functions_deprecation_call(self):
+        from numpy import row_stack
+        from numpy._core.numerictypes import maximum_sctype
+        from numpy.lib._npyio_impl import recfromcsv, recfromtxt
+        from numpy.lib._shape_base_impl import get_array_wrap
+        from numpy.lib._utils_impl import safe_eval
+        from numpy.lib.tests.test_io import TextIO
+
+        self.assert_deprecated(lambda: safe_eval("None"))
+
+        data_gen = lambda: TextIO('A,B\n0,1\n2,3')
+        kwargs = {'delimiter': ",", 'missing_values': "N/A", 'names': True}
+        self.assert_deprecated(lambda: recfromcsv(data_gen()))
+        self.assert_deprecated(lambda: recfromtxt(data_gen(), **kwargs))
+
+        self.assert_deprecated(get_array_wrap)
+        self.assert_deprecated(lambda: maximum_sctype(int))
+
+        self.assert_deprecated(lambda: row_stack([[]]))
+        self.assert_deprecated(lambda: np.chararray)
+
+
+class TestDeprecatedDTypeAliases(_DeprecationTestCase):
+
+    def _check_for_warning(self, func):
+        with pytest.warns(DeprecationWarning,
+                          match="alias 'a' was deprecated in NumPy 2.0") as w:
+            func()
+        assert len(w) == 1
+
+    def test_a_dtype_alias(self):
+        for dtype in ["a", "a10"]:
+            f = lambda: np.dtype(dtype)
+            self._check_for_warning(f)
+            self.assert_deprecated(f)
+            f = lambda: np.array(["hello", "world"]).astype("a10")
+            self._check_for_warning(f)
+            self.assert_deprecated(f)
+
+
+class TestDeprecatedArrayWrap(_DeprecationTestCase):
+    message = "__array_wrap__.*"
+
+    def test_deprecated(self):
+        class Test1:
+            def __array__(self, dtype=None, copy=None):
+                return np.arange(4)
+
+            def __array_wrap__(self, arr, context=None):
+                self.called = True
+                return 'pass context'
+
+        class Test2(Test1):
+            def __array_wrap__(self, arr):
+                self.called = True
+                return 'pass'
+
+        test1 = Test1()
+        test2 = Test2()
+        self.assert_deprecated(lambda: np.negative(test1))
+        assert test1.called
+        self.assert_deprecated(lambda: np.negative(test2))
+        assert test2.called
+
+class TestDeprecatedArrayAttributeSetting(_DeprecationTestCase):
+    message = "Setting the .*on a NumPy array has been deprecated.*"
+
+    def test_deprecated_strides_set(self):
+        x = np.eye(2)
+        self.assert_deprecated(setattr, args=(x, 'strides', x.strides))
+
+
+class TestDeprecatedDTypeParenthesizedRepeatCount(_DeprecationTestCase):
+    message = "Passing in a parenthesized single number"
+
+    @pytest.mark.parametrize("string", ["(2)i,", "(3)3S,", "f,(2)f"])
+    def test_parenthesized_repeat_count(self, string):
+        self.assert_deprecated(np.dtype, args=(string,))
+
+
+class TestAddNewdocUFunc(_DeprecationTestCase):
+    # Deprecated in Numpy 2.2, 2024-11
+    @pytest.mark.thread_unsafe(
+        reason="modifies and checks docstring which is global state"
+    )
+    def test_deprecated(self):
+        doc = struct_ufunc.add_triplet.__doc__
+        # gh-26718
+        # This test mutates the C-level docstring pointer for add_triplet,
+        # which is permanent once set. Skip when re-running tests.
+        if doc is not None and "new docs" in doc:
+            pytest.skip("Cannot retest deprecation, otherwise ValueError: "
+                "Cannot change docstring of ufunc with non-NULL docstring")
+        self.assert_deprecated(
+            lambda: np._core.umath._add_newdoc_ufunc(
+                struct_ufunc.add_triplet, "new docs"
+            )
+        )
+
+
+class TestDTypeAlignBool(_VisibleDeprecationTestCase):
+    # Deprecated in Numpy 2.4, 2025-07
+    # NOTE: As you can see, finalizing this deprecation breaks some (very) old
+    # pickle files.  This may be fine, but needs to be done with some care since
+    # it breaks all of them and not just some.
+    # (Maybe it should be a 3.0 or only after warning more explicitly around pickles.)
+    message = r"dtype\(\): align should be passed as Python or NumPy boolean but got "
+
+    def test_deprecated(self):
+        # in particular integers should be rejected because one may think they mean
+        # alignment, or pass them accidentally as a subarray shape (meaning to pass
+        # a tuple).
+        self.assert_deprecated(lambda: np.dtype("f8", align=3))
+
+    @pytest.mark.parametrize("align", [True, False, np.True_, np.False_])
+    def test_not_deprecated(self, align):
+        # if the user passes a bool, it is accepted.
+        self.assert_not_deprecated(lambda: np.dtype("f8", align=align))
+
+
+class TestFlatiterIndexing0dBoolIndex(_DeprecationTestCase):
+    # Deprecated in Numpy 2.4, 2025-07
+    message = r"Indexing flat iterators with a 0-dimensional boolean index"
+
+    def test_0d_boolean_index_deprecated(self):
+        arr = np.arange(3)
+        # 0d boolean indices on flat iterators are deprecated
+        self.assert_deprecated(lambda: arr.flat[True])
+
+    def test_0d_boolean_assign_index_deprecated(self):
+        arr = np.arange(3)
+
+        def assign_to_index():
+            arr.flat[True] = 10
+
+        self.assert_deprecated(assign_to_index)
+
+
+class TestFlatiterIndexingFloatIndex(_DeprecationTestCase):
+    # Deprecated in NumPy 2.4, 2025-07
+    message = r"Invalid non-array indices for iterator objects"
+
+    def test_float_index_deprecated(self):
+        arr = np.arange(3)
+        # float indices on flat iterators are deprecated
+        self.assert_deprecated(lambda: arr.flat[[1.]])
+
+    def test_float_assign_index_deprecated(self):
+        arr = np.arange(3)
+
+        def assign_to_index():
+            arr.flat[[1.]] = 10
+
+        self.assert_deprecated(assign_to_index)
+
+
+@pytest.mark.thread_unsafe(
+    reason="warning control utilities are deprecated due to being thread-unsafe"
+)
+class TestWarningUtilityDeprecations(_DeprecationTestCase):
+    # Deprecation in NumPy 2.4, 2025-08
+    message = r"NumPy warning suppression and assertion utilities are deprecated."
+
+    def test_assert_warns_deprecated(self):
+        def use_assert_warns():
+            with np.testing.assert_warns(RuntimeWarning):
+                warnings.warn("foo", RuntimeWarning, stacklevel=1)
+
+        self.assert_deprecated(use_assert_warns)
+
+    def test_suppress_warnings_deprecated(self):
+        def use_suppress_warnings():
+            with np.testing.suppress_warnings() as sup:
+                sup.filter(RuntimeWarning, 'invalid value encountered in divide')
+
+        self.assert_deprecated(use_suppress_warnings)
+
+
+class TestTooManyArgsExtremum(_DeprecationTestCase):
+    # Deprecated in Numpy 2.4, 2025-08, gh-27639
+    message = "Passing more than 2 positional arguments to np.maximum and np.minimum "
+
+    @pytest.mark.parametrize("ufunc", [np.minimum, np.maximum])
+    def test_extremem_3_args(self, ufunc):
+        self.assert_deprecated(ufunc, args=(np.ones(1), np.zeros(1), np.empty(1)))
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_dlpack.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_dlpack.py
new file mode 100644
index 0000000000000000000000000000000000000000..a5d6cbfddb8b6d917bc54e899557c015290f7e4d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_dlpack.py
@@ -0,0 +1,190 @@
+import sys
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_PYPY, assert_array_equal
+
+
+def new_and_old_dlpack():
+    yield np.arange(5)
+
+    class OldDLPack(np.ndarray):
+        # Support only the "old" version
+        def __dlpack__(self, stream=None):
+            return super().__dlpack__(stream=None)
+
+    yield np.arange(5).view(OldDLPack)
+
+
+class TestDLPack:
+    @pytest.mark.skipif(IS_PYPY, reason="PyPy can't get refcounts.")
+    @pytest.mark.parametrize("max_version", [(0, 0), None, (1, 0), (100, 3)])
+    def test_dunder_dlpack_refcount(self, max_version):
+        x = np.arange(5)
+        y = x.__dlpack__(max_version=max_version)
+        startcount = sys.getrefcount(x)
+        del y
+        assert startcount - sys.getrefcount(x) == 1
+
+    def test_dunder_dlpack_stream(self):
+        x = np.arange(5)
+        x.__dlpack__(stream=None)
+
+        with pytest.raises(RuntimeError):
+            x.__dlpack__(stream=1)
+
+    def test_dunder_dlpack_copy(self):
+        # Checks the argument parsing of __dlpack__ explicitly.
+        # Honoring the flag is tested in the from_dlpack round-tripping test.
+        x = np.arange(5)
+        x.__dlpack__(copy=True)
+        x.__dlpack__(copy=None)
+        x.__dlpack__(copy=False)
+
+        with pytest.raises(ValueError):
+            # NOTE: The copy converter should be stricter, but not just here.
+            x.__dlpack__(copy=np.array([1, 2, 3]))
+
+    def test_strides_not_multiple_of_itemsize(self):
+        dt = np.dtype([('int', np.int32), ('char', np.int8)])
+        y = np.zeros((5,), dtype=dt)
+        z = y['int']
+
+        with pytest.raises(BufferError):
+            np.from_dlpack(z)
+
+    @pytest.mark.skipif(IS_PYPY, reason="PyPy can't get refcounts.")
+    @pytest.mark.parametrize("arr", new_and_old_dlpack())
+    def test_from_dlpack_refcount(self, arr):
+        arr = arr.copy()
+        y = np.from_dlpack(arr)
+        startcount = sys.getrefcount(arr)
+        del y
+        assert startcount - sys.getrefcount(arr) == 1
+
+    @pytest.mark.parametrize("dtype", [
+        np.bool,
+        np.int8, np.int16, np.int32, np.int64,
+        np.uint8, np.uint16, np.uint32, np.uint64,
+        np.float16, np.float32, np.float64,
+        np.complex64, np.complex128
+    ])
+    @pytest.mark.parametrize("arr", new_and_old_dlpack())
+    def test_dtype_passthrough(self, arr, dtype):
+        x = arr.astype(dtype)
+        y = np.from_dlpack(x)
+
+        assert y.dtype == x.dtype
+        assert_array_equal(x, y)
+
+    def test_invalid_dtype(self):
+        x = np.asarray(np.datetime64('2021-05-27'))
+
+        with pytest.raises(BufferError):
+            np.from_dlpack(x)
+
+    def test_invalid_byte_swapping(self):
+        dt = np.dtype('=i8').newbyteorder()
+        x = np.arange(5, dtype=dt)
+
+        with pytest.raises(BufferError):
+            np.from_dlpack(x)
+
+    def test_non_contiguous(self):
+        x = np.arange(25).reshape((5, 5))
+
+        y1 = x[0]
+        assert_array_equal(y1, np.from_dlpack(y1))
+
+        y2 = x[:, 0]
+        assert_array_equal(y2, np.from_dlpack(y2))
+
+        y3 = x[1, :]
+        assert_array_equal(y3, np.from_dlpack(y3))
+
+        y4 = x[1]
+        assert_array_equal(y4, np.from_dlpack(y4))
+
+        y5 = np.diagonal(x).copy()
+        assert_array_equal(y5, np.from_dlpack(y5))
+
+    @pytest.mark.parametrize("ndim", range(33))
+    def test_higher_dims(self, ndim):
+        shape = (1,) * ndim
+        x = np.zeros(shape, dtype=np.float64)
+
+        assert shape == np.from_dlpack(x).shape
+
+    def test_dlpack_device(self):
+        x = np.arange(5)
+        assert x.__dlpack_device__() == (1, 0)
+        y = np.from_dlpack(x)
+        assert y.__dlpack_device__() == (1, 0)
+        z = y[::2]
+        assert z.__dlpack_device__() == (1, 0)
+
+    def dlpack_deleter_exception(self, max_version):
+        x = np.arange(5)
+        _ = x.__dlpack__(max_version=max_version)
+        raise RuntimeError
+
+    @pytest.mark.parametrize("max_version", [None, (1, 0)])
+    def test_dlpack_destructor_exception(self, max_version):
+        with pytest.raises(RuntimeError):
+            self.dlpack_deleter_exception(max_version=max_version)
+
+    def test_readonly(self):
+        x = np.arange(5)
+        x.flags.writeable = False
+        # Raises without max_version
+        with pytest.raises(BufferError):
+            x.__dlpack__()
+
+        # But works fine if we try with version
+        y = np.from_dlpack(x)
+        assert not y.flags.writeable
+
+    def test_writeable(self):
+        x_new, x_old = new_and_old_dlpack()
+
+        # new dlpacks respect writeability
+        y = np.from_dlpack(x_new)
+        assert y.flags.writeable
+
+        # old dlpacks are not writeable for backwards compatibility
+        y = np.from_dlpack(x_old)
+        assert not y.flags.writeable
+
+    def test_ndim0(self):
+        x = np.array(1.0)
+        y = np.from_dlpack(x)
+        assert_array_equal(x, y)
+
+    def test_size1dims_arrays(self):
+        x = np.ndarray(dtype='f8', shape=(10, 5, 1), strides=(8, 80, 4),
+                       buffer=np.ones(1000, dtype=np.uint8), order='F')
+        y = np.from_dlpack(x)
+        assert_array_equal(x, y)
+
+    def test_copy(self):
+        x = np.arange(5)
+
+        y = np.from_dlpack(x)
+        assert np.may_share_memory(x, y)
+        y = np.from_dlpack(x, copy=False)
+        assert np.may_share_memory(x, y)
+        y = np.from_dlpack(x, copy=True)
+        assert not np.may_share_memory(x, y)
+
+    def test_device(self):
+        x = np.arange(5)
+        # requesting (1, 0), i.e. CPU device works in both calls:
+        x.__dlpack__(dl_device=(1, 0))
+        np.from_dlpack(x, device="cpu")
+        np.from_dlpack(x, device=None)
+
+        with pytest.raises(BufferError):
+            x.__dlpack__(dl_device=(10, 0))
+        with pytest.raises(ValueError):
+            np.from_dlpack(x, device="gpu")
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_dtype.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_dtype.py
new file mode 100644
index 0000000000000000000000000000000000000000..e255863126a86351de1e1d548c362a2c4feec5c1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_dtype.py
@@ -0,0 +1,2110 @@
+import contextlib
+import ctypes
+import gc
+import inspect
+import operator
+import pickle
+import sys
+import types
+from itertools import permutations
+from typing import Any
+
+import hypothesis
+import pytest
+from hypothesis.extra import numpy as hynp
+
+import numpy as np
+import numpy.dtypes
+from numpy._core._multiarray_tests import create_custom_field_dtype
+from numpy._core._rational_tests import rational
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_64BIT,
+    IS_PYPY,
+    IS_PYSTON,
+    IS_WASM,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+
+def assert_dtype_equal(a, b):
+    assert_equal(a, b)
+    assert_equal(hash(a), hash(b),
+                 "two equivalent types do not hash to the same value !")
+
+def assert_dtype_not_equal(a, b):
+    assert_(a != b)
+    assert_(hash(a) != hash(b),
+            "two different types hash to the same value !")
+
+class TestBuiltin:
+    @pytest.mark.parametrize('t', [int, float, complex, np.int32, str, object])
+    def test_run(self, t):
+        """Only test hash runs at all."""
+        dt = np.dtype(t)
+        hash(dt)
+
+    @pytest.mark.parametrize('t', [int, float])
+    def test_dtype(self, t):
+        # Make sure equivalent byte order char hash the same (e.g. < and = on
+        # little endian)
+        dt = np.dtype(t)
+        dt2 = dt.newbyteorder("<")
+        dt3 = dt.newbyteorder(">")
+        if dt == dt2:
+            assert_(dt.byteorder != dt2.byteorder, "bogus test")
+            assert_dtype_equal(dt, dt2)
+        else:
+            assert_(dt.byteorder != dt3.byteorder, "bogus test")
+            assert_dtype_equal(dt, dt3)
+
+    def test_equivalent_dtype_hashing(self):
+        # Make sure equivalent dtypes with different type num hash equal
+        uintp = np.dtype(np.uintp)
+        if uintp.itemsize == 4:
+            left = uintp
+            right = np.dtype(np.uint32)
+        else:
+            left = uintp
+            right = np.dtype(np.ulonglong)
+        assert_(left == right)
+        assert_(hash(left) == hash(right))
+
+    def test_invalid_types(self):
+        # Make sure invalid type strings raise an error
+
+        assert_raises(TypeError, np.dtype, 'O3')
+        assert_raises(TypeError, np.dtype, 'O5')
+        assert_raises(TypeError, np.dtype, 'O7')
+        assert_raises(TypeError, np.dtype, 'b3')
+        assert_raises(TypeError, np.dtype, 'h4')
+        assert_raises(TypeError, np.dtype, 'I5')
+        assert_raises(TypeError, np.dtype, 'e3')
+        assert_raises(TypeError, np.dtype, 'f5')
+
+        if np.dtype('g').itemsize == 8 or np.dtype('g').itemsize == 16:
+            assert_raises(TypeError, np.dtype, 'g12')
+        elif np.dtype('g').itemsize == 12:
+            assert_raises(TypeError, np.dtype, 'g16')
+
+        if np.dtype('l').itemsize == 8:
+            assert_raises(TypeError, np.dtype, 'l4')
+            assert_raises(TypeError, np.dtype, 'L4')
+        else:
+            assert_raises(TypeError, np.dtype, 'l8')
+            assert_raises(TypeError, np.dtype, 'L8')
+
+        if np.dtype('q').itemsize == 8:
+            assert_raises(TypeError, np.dtype, 'q4')
+            assert_raises(TypeError, np.dtype, 'Q4')
+        else:
+            assert_raises(TypeError, np.dtype, 'q8')
+            assert_raises(TypeError, np.dtype, 'Q8')
+
+        # Make sure negative-sized dtype raises an error
+        assert_raises(TypeError, np.dtype, 'S-1')
+        assert_raises(TypeError, np.dtype, 'U-1')
+        assert_raises(TypeError, np.dtype, 'V-1')
+
+    def test_richcompare_invalid_dtype_equality(self):
+        # Make sure objects that cannot be converted to valid
+        # dtypes results in False/True when compared to valid dtypes.
+        # Here 7 cannot be converted to dtype. No exceptions should be raised
+
+        assert not np.dtype(np.int32) == 7, "dtype richcompare failed for =="
+        assert np.dtype(np.int32) != 7, "dtype richcompare failed for !="
+
+    @pytest.mark.parametrize(
+        'operation',
+        [operator.le, operator.lt, operator.ge, operator.gt])
+    def test_richcompare_invalid_dtype_comparison(self, operation):
+        # Make sure TypeError is raised for comparison operators
+        # for invalid dtypes. Here 7 is an invalid dtype.
+
+        with pytest.raises(TypeError):
+            operation(np.dtype(np.int32), 7)
+
+    @pytest.mark.parametrize("dtype",
+             ['Bool', 'Bytes0', 'Complex32', 'Complex64',
+              'Datetime64', 'Float16', 'Float32', 'Float64',
+              'Int8', 'Int16', 'Int32', 'Int64',
+              'Object0', 'Str0', 'Timedelta64',
+              'UInt8', 'UInt16', 'Uint32', 'UInt32',
+              'Uint64', 'UInt64', 'Void0',
+              "Float128", "Complex128"])
+    def test_numeric_style_types_are_invalid(self, dtype):
+        with assert_raises(TypeError):
+            np.dtype(dtype)
+
+    def test_expired_dtypes_with_bad_bytesize(self):
+        match: str = r".*removed in NumPy 2.0.*"
+        with pytest.raises(TypeError, match=match):
+            np.dtype("int0")
+        with pytest.raises(TypeError, match=match):
+            np.dtype("uint0")
+        with pytest.raises(TypeError, match=match):
+            np.dtype("bool8")
+        with pytest.raises(TypeError, match=match):
+            np.dtype("bytes0")
+        with pytest.raises(TypeError, match=match):
+            np.dtype("str0")
+        with pytest.raises(TypeError, match=match):
+            np.dtype("object0")
+        with pytest.raises(TypeError, match=match):
+            np.dtype("void0")
+
+    @pytest.mark.parametrize(
+        'value',
+        ['m8', 'M8', 'datetime64', 'timedelta64',
+         'i4, (2,3)f8, f4', 'S3, 3u8, (3,4)S10',
+         '>f', '<f', '=f', '|f',
+        ])
+    def test_dtype_bytes_str_equivalence(self, value):
+        bytes_value = value.encode('ascii')
+        from_bytes = np.dtype(bytes_value)
+        from_str = np.dtype(value)
+        assert_dtype_equal(from_bytes, from_str)
+
+    def test_dtype_from_bytes(self):
+        # Empty bytes object
+        assert_raises(TypeError, np.dtype, b'')
+        # Byte order indicator, but no type
+        assert_raises(TypeError, np.dtype, b'|')
+
+        # Single character with ordinal < NPY_NTYPES_LEGACY returns
+        # type by index into _builtin_descrs
+        assert_dtype_equal(np.dtype(bytes([0])), np.dtype('bool'))
+        assert_dtype_equal(np.dtype(bytes([17])), np.dtype(object))
+
+        # Single character where value is a valid type code
+        assert_dtype_equal(np.dtype(b'f'), np.dtype('float32'))
+
+        # Bytes with non-ascii values raise errors
+        assert_raises(TypeError, np.dtype, b'\xff')
+        assert_raises(TypeError, np.dtype, b's\xff')
+
+    def test_bad_param(self):
+        # Can't give a size that's too small
+        assert_raises(ValueError, np.dtype,
+                        {'names': ['f0', 'f1'],
+                         'formats': ['i4', 'i1'],
+                         'offsets': [0, 4],
+                         'itemsize': 4})
+        # If alignment is enabled, the alignment (4) must divide the itemsize
+        assert_raises(ValueError, np.dtype,
+                        {'names': ['f0', 'f1'],
+                         'formats': ['i4', 'i1'],
+                         'offsets': [0, 4],
+                         'itemsize': 9}, align=True)
+        # If alignment is enabled, the individual fields must be aligned
+        assert_raises(ValueError, np.dtype,
+                        {'names': ['f0', 'f1'],
+                         'formats': ['i1', 'f4'],
+                         'offsets': [0, 2]}, align=True)
+
+    def test_field_order_equality(self):
+        x = np.dtype({'names': ['A', 'B'],
+                      'formats': ['i4', 'f4'],
+                      'offsets': [0, 4]})
+        y = np.dtype({'names': ['B', 'A'],
+                      'formats': ['i4', 'f4'],
+                      'offsets': [4, 0]})
+        assert_equal(x == y, False)
+        # This is a safe cast (not equiv) due to the different names:
+        assert np.can_cast(x, y, casting="safe")
+
+    @pytest.mark.parametrize(
+        ["type_char", "char_size", "scalar_type"],
+        [["U", 4, np.str_],
+         ["S", 1, np.bytes_]])
+    def test_create_string_dtypes_directly(
+            self, type_char, char_size, scalar_type):
+        dtype_class = type(np.dtype(type_char))
+
+        dtype = dtype_class(8)
+        assert dtype.type is scalar_type
+        assert dtype.itemsize == 8 * char_size
+
+    def test_create_invalid_string_errors(self):
+        one_too_big = np.iinfo(np.intc).max + 1
+        with pytest.raises(TypeError):
+            type(np.dtype("U"))(one_too_big // 4)
+
+        with pytest.raises(TypeError):
+            # Code coverage for very large numbers:
+            type(np.dtype("U"))(np.iinfo(np.intp).max // 4 + 1)
+
+        if one_too_big < sys.maxsize:
+            with pytest.raises(TypeError):
+                type(np.dtype("S"))(one_too_big)
+
+        with pytest.raises(ValueError):
+            type(np.dtype("U"))(-1)
+
+        # OverflowError on 32 bit
+        with pytest.raises((TypeError, OverflowError)):
+            # see gh-26556
+            type(np.dtype("S"))(2**61)
+
+        with pytest.raises(TypeError):
+            np.dtype("S1234hello")
+
+    def test_leading_zero_parsing(self):
+        dt1 = np.dtype('S010')
+        dt2 = np.dtype('S10')
+
+        assert dt1 == dt2
+        assert repr(dt1) == "dtype('S10')"
+        assert dt1.itemsize == 10
+
+
+class TestRecord:
+    def test_equivalent_record(self):
+        """Test whether equivalent record dtypes hash the same."""
+        a = np.dtype([('yo', int)])
+        b = np.dtype([('yo', int)])
+        assert_dtype_equal(a, b)
+
+    def test_different_names(self):
+        # In theory, they may hash the same (collision) ?
+        a = np.dtype([('yo', int)])
+        b = np.dtype([('ye', int)])
+        assert_dtype_not_equal(a, b)
+
+    def test_different_titles(self):
+        # In theory, they may hash the same (collision) ?
+        a = np.dtype({'names': ['r', 'b'],
+                      'formats': ['u1', 'u1'],
+                      'titles': ['Red pixel', 'Blue pixel']})
+        b = np.dtype({'names': ['r', 'b'],
+                      'formats': ['u1', 'u1'],
+                      'titles': ['RRed pixel', 'Blue pixel']})
+        assert_dtype_not_equal(a, b)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_refcount_dictionary_setting(self):
+        names = ["name1"]
+        formats = ["f8"]
+        titles = ["t1"]
+        offsets = [0]
+        d = {"names": names, "formats": formats, "titles": titles, "offsets": offsets}
+        refcounts = {k: sys.getrefcount(i) for k, i in d.items()}
+        np.dtype(d)
+        refcounts_new = {k: sys.getrefcount(i) for k, i in d.items()}
+        assert refcounts == refcounts_new
+
+    def test_mutate(self):
+        # Mutating a dtype should reset the cached hash value.
+        # NOTE: Mutating should be deprecated, but new API added to replace it.
+        a = np.dtype([('yo', int)])
+        b = np.dtype([('yo', int)])
+        c = np.dtype([('ye', int)])
+        assert_dtype_equal(a, b)
+        assert_dtype_not_equal(a, c)
+        a.names = ['ye']
+        assert_dtype_equal(a, c)
+        assert_dtype_not_equal(a, b)
+        state = b.__reduce__()[2]
+        a.__setstate__(state)
+        assert_dtype_equal(a, b)
+        assert_dtype_not_equal(a, c)
+
+    def test_init_simple_structured(self):
+        dt1 = np.dtype("i, i")
+        assert dt1.names == ("f0", "f1")
+
+        dt2 = np.dtype("i,")
+        assert dt2.names == ("f0",)
+
+    def test_mutate_error(self):
+        # NOTE: Mutating should be deprecated, but new API added to replace it.
+        a = np.dtype("i,i")
+
+        with pytest.raises(ValueError, match="must replace all names at once"):
+            a.names = ["f0"]
+
+        with pytest.raises(ValueError, match=".*and not string"):
+            a.names = ["f0", b"not a unicode name"]
+
+    def test_not_lists(self):
+        """Test if an appropriate exception is raised when passing bad values to
+        the dtype constructor.
+        """
+        assert_raises(TypeError, np.dtype,
+                      {"names": {'A', 'B'}, "formats": ['f8', 'i4']})
+        assert_raises(TypeError, np.dtype,
+                      {"names": ['A', 'B'], "formats": {'f8', 'i4'}})
+
+    def test_aligned_size(self):
+        # Check that structured dtypes get padded to an aligned size
+        dt = np.dtype('i4, i1', align=True)
+        assert_equal(dt.itemsize, 8)
+        dt = np.dtype([('f0', 'i4'), ('f1', 'i1')], align=True)
+        assert_equal(dt.itemsize, 8)
+        dt = np.dtype({'names': ['f0', 'f1'],
+                       'formats': ['i4', 'u1'],
+                       'offsets': [0, 4]}, align=True)
+        assert_equal(dt.itemsize, 8)
+        dt = np.dtype({'f0': ('i4', 0), 'f1': ('u1', 4)}, align=True)
+        assert_equal(dt.itemsize, 8)
+        # Nesting should preserve that alignment
+        dt1 = np.dtype([('f0', 'i4'),
+                       ('f1', [('f1', 'i1'), ('f2', 'i4'), ('f3', 'i1')]),
+                       ('f2', 'i1')], align=True)
+        assert_equal(dt1.itemsize, 20)
+        dt2 = np.dtype({'names': ['f0', 'f1', 'f2'],
+                       'formats': ['i4',
+                                  [('f1', 'i1'), ('f2', 'i4'), ('f3', 'i1')],
+                                  'i1'],
+                       'offsets': [0, 4, 16]}, align=True)
+        assert_equal(dt2.itemsize, 20)
+        dt3 = np.dtype({'f0': ('i4', 0),
+                       'f1': ([('f1', 'i1'), ('f2', 'i4'), ('f3', 'i1')], 4),
+                       'f2': ('i1', 16)}, align=True)
+        assert_equal(dt3.itemsize, 20)
+        assert_equal(dt1, dt2)
+        assert_equal(dt2, dt3)
+        # Nesting should preserve packing
+        dt1 = np.dtype([('f0', 'i4'),
+                       ('f1', [('f1', 'i1'), ('f2', 'i4'), ('f3', 'i1')]),
+                       ('f2', 'i1')], align=False)
+        assert_equal(dt1.itemsize, 11)
+        dt2 = np.dtype({'names': ['f0', 'f1', 'f2'],
+                       'formats': ['i4',
+                                  [('f1', 'i1'), ('f2', 'i4'), ('f3', 'i1')],
+                                  'i1'],
+                       'offsets': [0, 4, 10]}, align=False)
+        assert_equal(dt2.itemsize, 11)
+        dt3 = np.dtype({'f0': ('i4', 0),
+                       'f1': ([('f1', 'i1'), ('f2', 'i4'), ('f3', 'i1')], 4),
+                       'f2': ('i1', 10)}, align=False)
+        assert_equal(dt3.itemsize, 11)
+        assert_equal(dt1, dt2)
+        assert_equal(dt2, dt3)
+        # Array of subtype should preserve alignment
+        dt1 = np.dtype([('a', '|i1'),
+                        ('b', [('f0', '<i2'),
+                        ('f1', '<f4')], 2)], align=True)
+        assert_equal(dt1.descr, [('a', '|i1'), ('', '|V3'),
+                                 ('b', [('f0', '<i2'), ('', '|V2'),
+                                 ('f1', '<f4')], (2,))])
+
+    def test_empty_struct_alignment(self):
+        # Empty dtypes should have an alignment of 1
+        dt = np.dtype([], align=True)
+        assert_equal(dt.alignment, 1)
+        dt = np.dtype([('f0', [])], align=True)
+        assert_equal(dt.alignment, 1)
+        dt = np.dtype({'names': [],
+                       'formats': [],
+                       'offsets': []}, align=True)
+        assert_equal(dt.alignment, 1)
+        dt = np.dtype({'names': ['f0'],
+                       'formats': [[]],
+                       'offsets': [0]}, align=True)
+        assert_equal(dt.alignment, 1)
+
+    def test_union_struct(self):
+        # Should be able to create union dtypes
+        dt = np.dtype({'names': ['f0', 'f1', 'f2'], 'formats': ['<u4', '<u2', '<u2'],
+                        'offsets': [0, 0, 2]}, align=True)
+        assert_equal(dt.itemsize, 4)
+        a = np.array([3], dtype='<u4').view(dt)
+        a['f1'] = 10
+        a['f2'] = 36
+        assert_equal(a['f0'], 10 + 36 * 256 * 256)
+        # Should be able to specify fields out of order
+        dt = np.dtype({'names': ['f0', 'f1', 'f2'], 'formats': ['<u4', '<u2', '<u2'],
+                        'offsets': [4, 0, 2]}, align=True)
+        assert_equal(dt.itemsize, 8)
+        # field name should not matter: assignment is by position
+        dt2 = np.dtype({'names': ['f2', 'f0', 'f1'],
+                        'formats': ['<u4', '<u2', '<u2'],
+                        'offsets': [4, 0, 2]}, align=True)
+        vals = [(0, 1, 2), (3, 2**15 - 1, 4)]
+        vals2 = [(0, 1, 2), (3, 2**15 - 1, 4)]
+        a = np.array(vals, dt)
+        b = np.array(vals2, dt2)
+        assert_equal(a.astype(dt2), b)
+        assert_equal(b.astype(dt), a)
+        assert_equal(a.view(dt2), b)
+        assert_equal(b.view(dt), a)
+        # Should not be able to overlap objects with other types
+        assert_raises(TypeError, np.dtype,
+                {'names': ['f0', 'f1'],
+                 'formats': ['O', 'i1'],
+                 'offsets': [0, 2]})
+        assert_raises(TypeError, np.dtype,
+                {'names': ['f0', 'f1'],
+                 'formats': ['i4', 'O'],
+                 'offsets': [0, 3]})
+        assert_raises(TypeError, np.dtype,
+                {'names': ['f0', 'f1'],
+                 'formats': [[('a', 'O')], 'i1'],
+                 'offsets': [0, 2]})
+        assert_raises(TypeError, np.dtype,
+                {'names': ['f0', 'f1'],
+                 'formats': ['i4', [('a', 'O')]],
+                 'offsets': [0, 3]})
+        # Out of order should still be ok, however
+        dt = np.dtype({'names': ['f0', 'f1'],
+                       'formats': ['i1', 'O'],
+                       'offsets': [np.dtype('intp').itemsize, 0]})
+
+    @pytest.mark.parametrize(["obj", "dtype", "expected"],
+        [([], ("2f4"), np.empty((0, 2), dtype="f4")),
+         (3, "(3,)f4", [3, 3, 3]),
+         (np.float64(2), "(2,)f4", [2, 2]),
+         ([((0, 1), (1, 2)), ((2,),)], '(2,2)f4', None),
+         (["1", "2"], "2i", None)])
+    def test_subarray_list(self, obj, dtype, expected):
+        dtype = np.dtype(dtype)
+        res = np.array(obj, dtype=dtype)
+
+        if expected is None:
+            # iterate the 1-d list to fill the array
+            expected = np.empty(len(obj), dtype=dtype)
+            for i in range(len(expected)):
+                expected[i] = obj[i]
+
+        assert_array_equal(res, expected)
+
+    def test_parenthesized_single_number(self):
+        with pytest.raises(TypeError, match="not understood"):
+            np.dtype("(2)f4")
+
+        # Deprecation also tested in
+        # test_deprecations.py::TestDeprecatedDTypeParenthesizedRepeatCount
+        # Left here to allow easy conversion to an exception check.
+        with pytest.warns(DeprecationWarning,
+                          match="parenthesized single number"):
+            np.dtype("(2)f4,")
+
+    def test_comma_datetime(self):
+        dt = np.dtype('M8[D],datetime64[Y],i8')
+        assert_equal(dt, np.dtype([('f0', 'M8[D]'),
+                                   ('f1', 'datetime64[Y]'),
+                                   ('f2', 'i8')]))
+
+    def test_from_dictproxy(self):
+        # Tests for PR #5920
+        dt = np.dtype({'names': ['a', 'b'], 'formats': ['i4', 'f4']})
+        assert_dtype_equal(dt, np.dtype(dt.fields))
+        dt2 = np.dtype((np.void, dt.fields))
+        assert_equal(dt2.fields, dt.fields)
+
+    def test_from_dict_with_zero_width_field(self):
+        # Regression test for #6430 / #2196
+        dt = np.dtype([('val1', np.float32, (0,)), ('val2', int)])
+        dt2 = np.dtype({'names': ['val1', 'val2'],
+                        'formats': [(np.float32, (0,)), int]})
+
+        assert_dtype_equal(dt, dt2)
+        assert_equal(dt.fields['val1'][0].itemsize, 0)
+        assert_equal(dt.itemsize, dt.fields['val2'][0].itemsize)
+
+    def test_bool_commastring(self):
+        d = np.dtype('?,?,?')  # raises?
+        assert_equal(len(d.names), 3)
+        for n in d.names:
+            assert_equal(d.fields[n][0], np.dtype('?'))
+
+    def test_nonint_offsets(self):
+        # gh-8059
+        def make_dtype(off):
+            return np.dtype({'names': ['A'], 'formats': ['i4'],
+                             'offsets': [off]})
+
+        assert_raises(TypeError, make_dtype, 'ASD')
+        assert_raises(OverflowError, make_dtype, 2**70)
+        assert_raises(TypeError, make_dtype, 2.3)
+        assert_raises(ValueError, make_dtype, -10)
+
+        # no errors here:
+        dt = make_dtype(np.uint32(0))
+        np.zeros(1, dtype=dt)[0].item()
+
+    def test_fields_by_index(self):
+        dt = np.dtype([('a', np.int8), ('b', np.float32, 3)])
+        assert_dtype_equal(dt[0], np.dtype(np.int8))
+        assert_dtype_equal(dt[1], np.dtype((np.float32, 3)))
+        assert_dtype_equal(dt[-1], dt[1])
+        assert_dtype_equal(dt[-2], dt[0])
+        assert_raises(IndexError, lambda: dt[-3])
+
+        assert_raises(TypeError, operator.getitem, dt, 3.0)
+
+        assert_equal(dt[1], dt[np.int8(1)])
+
+    @pytest.mark.parametrize('align_flag', [False, True])
+    def test_multifield_index(self, align_flag):
+        # indexing with a list produces subfields
+        # the align flag should be preserved
+        dt = np.dtype([
+            (('title', 'col1'), '<U20'), ('A', '<f8'), ('B', '<f8')
+        ], align=align_flag)
+
+        dt_sub = dt[['B', 'col1']]
+        assert_equal(
+            dt_sub,
+            np.dtype({
+                'names': ['B', 'col1'],
+                'formats': ['<f8', '<U20'],
+                'offsets': [88, 0],
+                'titles': [None, 'title'],
+                'itemsize': 96
+            })
+        )
+        assert_equal(dt_sub.isalignedstruct, align_flag)
+
+        dt_sub = dt[['B']]
+        assert_equal(
+            dt_sub,
+            np.dtype({
+                'names': ['B'],
+                'formats': ['<f8'],
+                'offsets': [88],
+                'itemsize': 96
+            })
+        )
+        assert_equal(dt_sub.isalignedstruct, align_flag)
+
+        dt_sub = dt[[]]
+        assert_equal(
+            dt_sub,
+            np.dtype({
+                'names': [],
+                'formats': [],
+                'offsets': [],
+                'itemsize': 96
+            })
+        )
+        assert_equal(dt_sub.isalignedstruct, align_flag)
+
+        assert_raises(TypeError, operator.getitem, dt, ())
+        assert_raises(TypeError, operator.getitem, dt, [1, 2, 3])
+        assert_raises(TypeError, operator.getitem, dt, ['col1', 2])
+        assert_raises(KeyError, operator.getitem, dt, ['fake'])
+        assert_raises(KeyError, operator.getitem, dt, ['title'])
+        assert_raises(ValueError, operator.getitem, dt, ['col1', 'col1'])
+
+    def test_partial_dict(self):
+        # 'names' is missing
+        assert_raises(ValueError, np.dtype,
+                {'formats': ['i4', 'i4'], 'f0': ('i4', 0), 'f1': ('i4', 4)})
+
+    def test_fieldless_views(self):
+        a = np.zeros(2, dtype={'names': [], 'formats': [], 'offsets': [],
+                               'itemsize': 8})
+        assert_raises(ValueError, a.view, np.dtype([]))
+
+        d = np.dtype((np.dtype([]), 10))
+        assert_equal(d.shape, (10,))
+        assert_equal(d.itemsize, 0)
+        assert_equal(d.base, np.dtype([]))
+
+        arr = np.fromiter((() for i in range(10)), [])
+        assert_equal(arr.dtype, np.dtype([]))
+        assert_raises(ValueError, np.frombuffer, b'', dtype=[])
+        assert_equal(np.frombuffer(b'', dtype=[], count=2),
+                     np.empty(2, dtype=[]))
+
+        assert_raises(ValueError, np.dtype, ([], 'f8'))
+        assert_raises(ValueError, np.zeros(1, dtype='i4').view, [])
+
+        assert_equal(np.zeros(2, dtype=[]) == np.zeros(2, dtype=[]),
+                     np.ones(2, dtype=bool))
+
+        assert_equal(np.zeros((1, 2), dtype=[]) == a,
+                     np.ones((1, 2), dtype=bool))
+
+    def test_nonstructured_with_object(self):
+        # See gh-23277, the dtype here thinks it contain objects, if the
+        # assert about that fails, the test becomes meaningless (which is OK)
+        arr = np.recarray((0,), dtype="O")
+        assert arr.dtype.names is None  # no fields
+        assert arr.dtype.hasobject  # but claims to contain objects
+        del arr  # the deletion failed previously.
+
+
+class TestSubarray:
+    def test_single_subarray(self):
+        a = np.dtype((int, (2)))
+        b = np.dtype((int, (2,)))
+        assert_dtype_equal(a, b)
+
+        assert_equal(type(a.subdtype[1]), tuple)
+        assert_equal(type(b.subdtype[1]), tuple)
+
+    def test_equivalent_record(self):
+        """Test whether equivalent subarray dtypes hash the same."""
+        a = np.dtype((int, (2, 3)))
+        b = np.dtype((int, (2, 3)))
+        assert_dtype_equal(a, b)
+
+    def test_nonequivalent_record(self):
+        """Test whether different subarray dtypes hash differently."""
+        a = np.dtype((int, (2, 3)))
+        b = np.dtype((int, (3, 2)))
+        assert_dtype_not_equal(a, b)
+
+        a = np.dtype((int, (2, 3)))
+        b = np.dtype((int, (2, 2)))
+        assert_dtype_not_equal(a, b)
+
+        a = np.dtype((int, (1, 2, 3)))
+        b = np.dtype((int, (1, 2)))
+        assert_dtype_not_equal(a, b)
+
+    def test_shape_equal(self):
+        """Test some data types that are equal"""
+        assert_dtype_equal(np.dtype('f8'), np.dtype(('f8', ())))
+        assert_dtype_equal(np.dtype('(1,)f8'), np.dtype(('f8', 1)))
+        assert np.dtype(('f8', 1)).shape == (1,)
+        assert_dtype_equal(np.dtype((int, 2)), np.dtype((int, (2,))))
+        assert_dtype_equal(np.dtype(('<f4', (3, 2))), np.dtype(('<f4', (3, 2))))
+        d = ([('a', 'f4', (1, 2)), ('b', 'f8', (3, 1))], (3, 2))
+        assert_dtype_equal(np.dtype(d), np.dtype(d))
+
+    def test_shape_simple(self):
+        """Test some simple cases that shouldn't be equal"""
+        assert_dtype_not_equal(np.dtype('f8'), np.dtype(('f8', (1,))))
+        assert_dtype_not_equal(np.dtype(('f8', (1,))), np.dtype(('f8', (1, 1))))
+        assert_dtype_not_equal(np.dtype(('f4', (3, 2))), np.dtype(('f4', (2, 3))))
+
+    def test_shape_monster(self):
+        """Test some more complicated cases that shouldn't be equal"""
+        assert_dtype_not_equal(
+            np.dtype(([('a', 'f4', (2, 1)), ('b', 'f8', (1, 3))], (2, 2))),
+            np.dtype(([('a', 'f4', (1, 2)), ('b', 'f8', (1, 3))], (2, 2))))
+        assert_dtype_not_equal(
+            np.dtype(([('a', 'f4', (2, 1)), ('b', 'f8', (1, 3))], (2, 2))),
+            np.dtype(([('a', 'f4', (2, 1)), ('b', 'i8', (1, 3))], (2, 2))))
+        assert_dtype_not_equal(
+            np.dtype(([('a', 'f4', (2, 1)), ('b', 'f8', (1, 3))], (2, 2))),
+            np.dtype(([('e', 'f8', (1, 3)), ('d', 'f4', (2, 1))], (2, 2))))
+        assert_dtype_not_equal(
+            np.dtype(([('a', [('a', 'i4', 6)], (2, 1)), ('b', 'f8', (1, 3))], (2, 2))),
+            np.dtype(([('a', [('a', 'u4', 6)], (2, 1)), ('b', 'f8', (1, 3))], (2, 2))))
+
+    def test_shape_sequence(self):
+        # Any sequence of integers should work as shape, but the result
+        # should be a tuple (immutable) of base type integers.
+        a = np.array([1, 2, 3], dtype=np.int16)
+        l = [1, 2, 3]
+        # Array gets converted
+        dt = np.dtype([('a', 'f4', a)])
+        assert_(isinstance(dt['a'].shape, tuple))
+        assert_(isinstance(dt['a'].shape[0], int))
+        # List gets converted
+        dt = np.dtype([('a', 'f4', l)])
+        assert_(isinstance(dt['a'].shape, tuple))
+        #
+
+        class IntLike:
+            def __index__(self):
+                return 3
+
+            def __int__(self):
+                # (a PyNumber_Check fails without __int__)
+                return 3
+
+        dt = np.dtype([('a', 'f4', IntLike())])
+        assert_(isinstance(dt['a'].shape, tuple))
+        assert_(isinstance(dt['a'].shape[0], int))
+        dt = np.dtype([('a', 'f4', (IntLike(),))])
+        assert_(isinstance(dt['a'].shape, tuple))
+        assert_(isinstance(dt['a'].shape[0], int))
+
+    def test_shape_matches_ndim(self):
+        dt = np.dtype([('a', 'f4', ())])
+        assert_equal(dt['a'].shape, ())
+        assert_equal(dt['a'].ndim, 0)
+
+        dt = np.dtype([('a', 'f4')])
+        assert_equal(dt['a'].shape, ())
+        assert_equal(dt['a'].ndim, 0)
+
+        dt = np.dtype([('a', 'f4', 4)])
+        assert_equal(dt['a'].shape, (4,))
+        assert_equal(dt['a'].ndim, 1)
+
+        dt = np.dtype([('a', 'f4', (1, 2, 3))])
+        assert_equal(dt['a'].shape, (1, 2, 3))
+        assert_equal(dt['a'].ndim, 3)
+
+    def test_shape_invalid(self):
+        # Check that the shape is valid.
+        max_int = np.iinfo(np.intc).max
+        max_intp = np.iinfo(np.intp).max
+        # Too large values (the datatype is part of this)
+        assert_raises(ValueError, np.dtype, [('a', 'f4', max_int // 4 + 1)])
+        assert_raises(ValueError, np.dtype, [('a', 'f4', max_int + 1)])
+        assert_raises(ValueError, np.dtype, [('a', 'f4', (max_int, 2))])
+        # Takes a different code path (fails earlier:
+        assert_raises(ValueError, np.dtype, [('a', 'f4', max_intp + 1)])
+        # Negative values
+        assert_raises(ValueError, np.dtype, [('a', 'f4', -1)])
+        assert_raises(ValueError, np.dtype, [('a', 'f4', (-1, -1))])
+
+    def test_alignment(self):
+        # Check that subarrays are aligned
+        t1 = np.dtype('(1,)i4', align=True)
+        t2 = np.dtype('2i4', align=True)
+        assert_equal(t1.alignment, t2.alignment)
+
+    def test_aligned_empty(self):
+        # Mainly regression test for gh-19696: construction failed completely
+        dt = np.dtype([], align=True)
+        assert dt == np.dtype([])
+        dt = np.dtype({"names": [], "formats": [], "itemsize": 0}, align=True)
+        assert dt == np.dtype([])
+
+    def test_subarray_base_item(self):
+        arr = np.ones(3, dtype=[("f", "i", 3)])
+        # Extracting the field "absorbs" the subarray into a view:
+        assert arr["f"].base is arr
+        # Extract the structured item, and then check the tuple component:
+        item = arr.item(0)
+        assert type(item) is tuple and len(item) == 1
+        assert item[0].base is arr
+
+    def test_subarray_cast_copies(self):
+        # Older versions of NumPy did NOT copy, but they got the ownership
+        # wrong (not actually knowing the correct base!).  Versions since 1.21
+        # (I think) crashed fairly reliable.  This defines the correct behavior
+        # as a copy.  Keeping the ownership would be possible (but harder)
+        arr = np.ones(3, dtype=[("f", "i", 3)])
+        cast = arr.astype(object)
+        for fields in cast:
+            assert type(fields) == tuple and len(fields) == 1
+            subarr = fields[0]
+            assert subarr.base is None
+            assert subarr.flags.owndata
+
+
+def iter_struct_object_dtypes():
+    """
+    Iterates over a few complex dtypes and object pattern which
+    fill the array with a given object (defaults to a singleton).
+
+    Yields
+    ------
+    dtype : dtype
+    pattern : tuple
+        Structured tuple for use with `np.array`.
+    count : int
+        Number of objects stored in the dtype.
+    singleton : object
+        A singleton object. The returned pattern is constructed so that
+        all objects inside the datatype are set to the singleton.
+    """
+    obj = object()
+
+    dt = np.dtype([('b', 'O', (2, 3))])
+    p = ([[obj] * 3] * 2,)
+    yield pytest.param(dt, p, 6, obj, id="<subarray>")
+
+    dt = np.dtype([('a', 'i4'), ('b', 'O', (2, 3))])
+    p = (0, [[obj] * 3] * 2)
+    yield pytest.param(dt, p, 6, obj, id="<subarray in field>")
+
+    dt = np.dtype([('a', 'i4'),
+                   ('b', [('ba', 'O'), ('bb', 'i1')], (2, 3))])
+    p = (0, [[(obj, 0)] * 3] * 2)
+    yield pytest.param(dt, p, 6, obj, id="<structured subarray 1>")
+
+    dt = np.dtype([('a', 'i4'),
+                   ('b', [('ba', 'O'), ('bb', 'O')], (2, 3))])
+    p = (0, [[(obj, obj)] * 3] * 2)
+    yield pytest.param(dt, p, 12, obj, id="<structured subarray 2>")
+
+
+@pytest.mark.skipif(
+    sys.version_info >= (3, 12),
+    reason="Python 3.12 has immortal refcounts, this test will no longer "
+           "work. See gh-23986"
+)
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+class TestStructuredObjectRefcounting:
+    """These tests cover various uses of complicated structured types which
+    include objects and thus require reference counting.
+    """
+    @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'],
+                             iter_struct_object_dtypes())
+    @pytest.mark.parametrize(["creation_func", "creation_obj"], [
+        pytest.param(np.empty, None,
+             # None is probably used for too many things
+             marks=pytest.mark.skip("unreliable due to python's behaviour")),
+        (np.ones, 1),
+        (np.zeros, 0)])
+    def test_structured_object_create_delete(self, dt, pat, count, singleton,
+                                             creation_func, creation_obj):
+        """Structured object reference counting in creation and deletion"""
+        # The test assumes that 0, 1, and None are singletons.
+        gc.collect()
+        before = sys.getrefcount(creation_obj)
+        arr = creation_func(3, dt)
+
+        now = sys.getrefcount(creation_obj)
+        assert now - before == count * 3
+        del arr
+        now = sys.getrefcount(creation_obj)
+        assert now == before
+
+    @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'],
+                             iter_struct_object_dtypes())
+    def test_structured_object_item_setting(self, dt, pat, count, singleton):
+        """Structured object reference counting for simple item setting"""
+        one = 1
+
+        gc.collect()
+        before = sys.getrefcount(singleton)
+        arr = np.array([pat] * 3, dt)
+        assert sys.getrefcount(singleton) - before == count * 3
+        # Fill with `1` and check that it was replaced correctly:
+        before2 = sys.getrefcount(one)
+        arr[...] = one
+        after2 = sys.getrefcount(one)
+        assert after2 - before2 == count * 3
+        del arr
+        gc.collect()
+        assert sys.getrefcount(one) == before2
+        assert sys.getrefcount(singleton) == before
+
+    @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'],
+                             iter_struct_object_dtypes())
+    @pytest.mark.parametrize(
+        ['shape', 'index', 'items_changed'],
+        [((3,), ([0, 2],), 2),
+         ((3, 2), ([0, 2], slice(None)), 4),
+         ((3, 2), ([0, 2], [1]), 2),
+         ((3,), ([True, False, True]), 2)])
+    def test_structured_object_indexing(self, shape, index, items_changed,
+                                        dt, pat, count, singleton):
+        """Structured object reference counting for advanced indexing."""
+        # Use two small negative values (should be singletons, but less likely
+        # to run into race-conditions).  This failed in some threaded envs
+        # When using 0 and 1.  If it fails again, should remove all explicit
+        # checks, and rely on `pytest-leaks` reference count checker only.
+        val0 = -4
+        val1 = -5
+
+        arr = np.full(shape, val0, dt)
+
+        gc.collect()
+        before_val0 = sys.getrefcount(val0)
+        before_val1 = sys.getrefcount(val1)
+        # Test item getting:
+        part = arr[index]
+        after_val0 = sys.getrefcount(val0)
+        assert after_val0 - before_val0 == count * items_changed
+        del part
+        # Test item setting:
+        arr[index] = val1
+        gc.collect()
+        after_val0 = sys.getrefcount(val0)
+        after_val1 = sys.getrefcount(val1)
+        assert before_val0 - after_val0 == count * items_changed
+        assert after_val1 - before_val1 == count * items_changed
+
+    @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'],
+                             iter_struct_object_dtypes())
+    def test_structured_object_take_and_repeat(self, dt, pat, count, singleton):
+        """Structured object reference counting for specialized functions.
+        The older functions such as take and repeat use different code paths
+        then item setting (when writing this).
+        """
+        indices = [0, 1]
+
+        arr = np.array([pat] * 3, dt)
+        gc.collect()
+        before = sys.getrefcount(singleton)
+        res = arr.take(indices)
+        after = sys.getrefcount(singleton)
+        assert after - before == count * 2
+        new = res.repeat(10)
+        gc.collect()
+        after_repeat = sys.getrefcount(singleton)
+        assert after_repeat - after == count * 2 * 10
+
+
+class TestStructuredDtypeSparseFields:
+    """Tests subarray fields which contain sparse dtypes so that
+    not all memory is used by the dtype work. Such dtype's should
+    leave the underlying memory unchanged.
+    """
+    dtype = np.dtype([('a', {'names': ['aa', 'ab'], 'formats': ['f', 'f'],
+                             'offsets': [0, 4]}, (2, 3))])
+    sparse_dtype = np.dtype([('a', {'names': ['ab'], 'formats': ['f'],
+                                    'offsets': [4]}, (2, 3))])
+
+    def test_sparse_field_assignment(self):
+        arr = np.zeros(3, self.dtype)
+        sparse_arr = arr.view(self.sparse_dtype)
+
+        sparse_arr[...] = np.finfo(np.float32).max
+        # dtype is reduced when accessing the field, so shape is (3, 2, 3):
+        assert_array_equal(arr["a"]["aa"], np.zeros((3, 2, 3)))
+
+    def test_sparse_field_assignment_fancy(self):
+        # Fancy assignment goes to the copyswap function for complex types:
+        arr = np.zeros(3, self.dtype)
+        sparse_arr = arr.view(self.sparse_dtype)
+
+        sparse_arr[[0, 1, 2]] = np.finfo(np.float32).max
+        # dtype is reduced when accessing the field, so shape is (3, 2, 3):
+        assert_array_equal(arr["a"]["aa"], np.zeros((3, 2, 3)))
+
+
+class TestMonsterType:
+    """Test deeply nested subtypes."""
+
+    def test1(self):
+        simple1 = np.dtype({'names': ['r', 'b'], 'formats': ['u1', 'u1'],
+            'titles': ['Red pixel', 'Blue pixel']})
+        a = np.dtype([('yo', int), ('ye', simple1),
+            ('yi', np.dtype((int, (3, 2))))])
+        b = np.dtype([('yo', int), ('ye', simple1),
+            ('yi', np.dtype((int, (3, 2))))])
+        assert_dtype_equal(a, b)
+
+        c = np.dtype([('yo', int), ('ye', simple1),
+            ('yi', np.dtype((a, (3, 2))))])
+        d = np.dtype([('yo', int), ('ye', simple1),
+            ('yi', np.dtype((a, (3, 2))))])
+        assert_dtype_equal(c, d)
+
+    @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking")
+    @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size")
+    def test_list_recursion(self):
+        l = []
+        l.append(('f', l))
+        with pytest.raises(RecursionError):
+            np.dtype(l)
+
+    @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking")
+    @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size")
+    def test_tuple_recursion(self):
+        d = np.int32
+        for i in range(100000):
+            d = (d, (1,))
+        # depending on OS and Python version, this might succeed
+        # see gh-30370 and cpython issue #142253
+        with contextlib.suppress(RecursionError):
+            np.dtype(d)
+
+    @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking")
+    @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size")
+    def test_dict_recursion(self):
+        d = {"names": ['self'], "formats": [None], "offsets": [0]}
+        d['formats'][0] = d
+        with pytest.raises(RecursionError):
+            np.dtype(d)
+
+
+class TestMetadata:
+    def test_no_metadata(self):
+        d = np.dtype(int)
+        assert_(d.metadata is None)
+
+    def test_metadata_takes_dict(self):
+        d = np.dtype(int, metadata={'datum': 1})
+        assert_(d.metadata == {'datum': 1})
+
+    def test_metadata_rejects_nondict(self):
+        assert_raises(TypeError, np.dtype, int, metadata='datum')
+        assert_raises(TypeError, np.dtype, int, metadata=1)
+        assert_raises(TypeError, np.dtype, int, metadata=None)
+
+    def test_nested_metadata(self):
+        d = np.dtype([('a', np.dtype(int, metadata={'datum': 1}))])
+        assert_(d['a'].metadata == {'datum': 1})
+
+    def test_base_metadata_copied(self):
+        d = np.dtype((np.void, np.dtype('i4,i4', metadata={'datum': 1})))
+        assert_(d.metadata == {'datum': 1})
+
+class TestString:
+    def test_complex_dtype_str(self):
+        dt = np.dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)),
+                                ('rtile', '>f4', (64, 36))], (3,)),
+                       ('bottom', [('bleft', ('>f4', (8, 64)), (1,)),
+                                   ('bright', '>f4', (8, 36))])])
+        assert_equal(str(dt),
+                     "[('top', [('tiles', ('>f4', (64, 64)), (1,)), "
+                     "('rtile', '>f4', (64, 36))], (3,)), "
+                     "('bottom', [('bleft', ('>f4', (8, 64)), (1,)), "
+                     "('bright', '>f4', (8, 36))])]")
+
+        # If the sticky aligned flag is set to True, it makes the
+        # str() function use a dict representation with an 'aligned' flag
+        dt = np.dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)),
+                                ('rtile', '>f4', (64, 36))],
+                                (3,)),
+                       ('bottom', [('bleft', ('>f4', (8, 64)), (1,)),
+                                   ('bright', '>f4', (8, 36))])],
+                       align=True)
+        assert_equal(str(dt),
+                    "{'names': ['top', 'bottom'],"
+                    " 'formats': [([('tiles', ('>f4', (64, 64)), (1,)), "
+                                   "('rtile', '>f4', (64, 36))], (3,)), "
+                                  "[('bleft', ('>f4', (8, 64)), (1,)), "
+                                   "('bright', '>f4', (8, 36))]],"
+                    " 'offsets': [0, 76800],"
+                    " 'itemsize': 80000,"
+                    " 'aligned': True}")
+        with np.printoptions(legacy='1.21'):
+            assert_equal(str(dt),
+                        "{'names':['top','bottom'], "
+                         "'formats':[([('tiles', ('>f4', (64, 64)), (1,)), "
+                                      "('rtile', '>f4', (64, 36))], (3,)),"
+                                     "[('bleft', ('>f4', (8, 64)), (1,)), "
+                                      "('bright', '>f4', (8, 36))]], "
+                         "'offsets':[0,76800], "
+                         "'itemsize':80000, "
+                         "'aligned':True}")
+        assert_equal(np.dtype(eval(str(dt))), dt)
+
+        dt = np.dtype({'names': ['r', 'g', 'b'], 'formats': ['u1', 'u1', 'u1'],
+                        'offsets': [0, 1, 2],
+                        'titles': ['Red pixel', 'Green pixel', 'Blue pixel']})
+        assert_equal(str(dt),
+                    "[(('Red pixel', 'r'), 'u1'), "
+                    "(('Green pixel', 'g'), 'u1'), "
+                    "(('Blue pixel', 'b'), 'u1')]")
+
+        dt = np.dtype({'names': ['rgba', 'r', 'g', 'b'],
+                       'formats': ['<u4', 'u1', 'u1', 'u1'],
+                       'offsets': [0, 0, 1, 2],
+                       'titles': ['Color', 'Red pixel',
+                                  'Green pixel', 'Blue pixel']})
+        assert_equal(str(dt),
+                    "{'names': ['rgba', 'r', 'g', 'b'],"
+                    " 'formats': ['<u4', 'u1', 'u1', 'u1'],"
+                    " 'offsets': [0, 0, 1, 2],"
+                    " 'titles': ['Color', 'Red pixel', "
+                               "'Green pixel', 'Blue pixel'],"
+                    " 'itemsize': 4}")
+
+        dt = np.dtype({'names': ['r', 'b'], 'formats': ['u1', 'u1'],
+                        'offsets': [0, 2],
+                        'titles': ['Red pixel', 'Blue pixel']})
+        assert_equal(str(dt),
+                    "{'names': ['r', 'b'],"
+                    " 'formats': ['u1', 'u1'],"
+                    " 'offsets': [0, 2],"
+                    " 'titles': ['Red pixel', 'Blue pixel'],"
+                    " 'itemsize': 3}")
+
+        dt = np.dtype([('a', '<m8[D]'), ('b', '<M8[us]')])
+        assert_equal(str(dt),
+                    "[('a', '<m8[D]'), ('b', '<M8[us]')]")
+
+    def test_repr_structured(self):
+        dt = np.dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)),
+                                ('rtile', '>f4', (64, 36))], (3,)),
+                       ('bottom', [('bleft', ('>f4', (8, 64)), (1,)),
+                                   ('bright', '>f4', (8, 36))])])
+        assert_equal(repr(dt),
+                     "dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)), "
+                     "('rtile', '>f4', (64, 36))], (3,)), "
+                     "('bottom', [('bleft', ('>f4', (8, 64)), (1,)), "
+                     "('bright', '>f4', (8, 36))])])")
+
+        dt = np.dtype({'names': ['r', 'g', 'b'], 'formats': ['u1', 'u1', 'u1'],
+                        'offsets': [0, 1, 2],
+                        'titles': ['Red pixel', 'Green pixel', 'Blue pixel']},
+                        align=True)
+        assert_equal(repr(dt),
+                    "dtype([(('Red pixel', 'r'), 'u1'), "
+                    "(('Green pixel', 'g'), 'u1'), "
+                    "(('Blue pixel', 'b'), 'u1')], align=True)")
+
+    def test_repr_structured_not_packed(self):
+        dt = np.dtype({'names': ['rgba', 'r', 'g', 'b'],
+                       'formats': ['<u4', 'u1', 'u1', 'u1'],
+                       'offsets': [0, 0, 1, 2],
+                       'titles': ['Color', 'Red pixel',
+                                  'Green pixel', 'Blue pixel']}, align=True)
+        assert_equal(repr(dt),
+                    "dtype({'names': ['rgba', 'r', 'g', 'b'],"
+                    " 'formats': ['<u4', 'u1', 'u1', 'u1'],"
+                    " 'offsets': [0, 0, 1, 2],"
+                    " 'titles': ['Color', 'Red pixel', "
+                                "'Green pixel', 'Blue pixel'],"
+                    " 'itemsize': 4}, align=True)")
+
+        dt = np.dtype({'names': ['r', 'b'], 'formats': ['u1', 'u1'],
+                        'offsets': [0, 2],
+                        'titles': ['Red pixel', 'Blue pixel'],
+                        'itemsize': 4})
+        assert_equal(repr(dt),
+                    "dtype({'names': ['r', 'b'], "
+                    "'formats': ['u1', 'u1'], "
+                    "'offsets': [0, 2], "
+                    "'titles': ['Red pixel', 'Blue pixel'], "
+                    "'itemsize': 4})")
+
+    def test_repr_structured_datetime(self):
+        dt = np.dtype([('a', '<M8[D]'), ('b', '<m8[us]')])
+        assert_equal(repr(dt),
+                    "dtype([('a', '<M8[D]'), ('b', '<m8[us]')])")
+
+    def test_repr_str_subarray(self):
+        dt = np.dtype(('<i2', (1,)))
+        assert_equal(repr(dt), "dtype(('<i2', (1,)))")
+        assert_equal(str(dt), "('<i2', (1,))")
+
+    def test_base_dtype_with_object_type(self):
+        # Issue gh-2798, should not error.
+        np.array(['a'], dtype="O").astype(("O", [("name", "O")]))
+
+    def test_empty_string_to_object(self):
+        # Pull request #4722
+        np.array(["", ""]).astype(object)
+
+    def test_void_subclass_unsized(self):
+        dt = np.dtype(np.record)
+        assert_equal(repr(dt), "dtype('V')")
+        assert_equal(str(dt), '|V0')
+        assert_equal(dt.name, 'record')
+
+    def test_void_subclass_sized(self):
+        dt = np.dtype((np.record, 2))
+        assert_equal(repr(dt), "dtype('V2')")
+        assert_equal(str(dt), '|V2')
+        assert_equal(dt.name, 'record16')
+
+    def test_void_subclass_fields(self):
+        dt = np.dtype((np.record, [('a', '<u2')]))
+        assert_equal(repr(dt), "dtype((numpy.record, [('a', '<u2')]))")
+        assert_equal(str(dt), "(numpy.record, [('a', '<u2')])")
+        assert_equal(dt.name, 'record16')
+
+    def test_custom_dtype_str(self):
+        dt = np.dtypes.StringDType()
+        assert_equal(dt.str, "StringDType()")
+
+
+class TestDtypeAttributeDeletion:
+
+    def test_dtype_non_writable_attributes_deletion(self):
+        dt = np.dtype(np.double)
+        attr = ["subdtype", "descr", "str", "name", "base", "shape",
+                "isbuiltin", "isnative", "isalignedstruct", "fields",
+                "metadata", "hasobject"]
+
+        for s in attr:
+            assert_raises(AttributeError, delattr, dt, s)
+
+    def test_dtype_writable_attributes_deletion(self):
+        dt = np.dtype(np.double)
+        attr = ["names"]
+        for s in attr:
+            assert_raises(AttributeError, delattr, dt, s)
+
+
+class TestDtypeAttributes:
+    def test_descr_has_trailing_void(self):
+        # see gh-6359
+        dtype = np.dtype({
+            'names': ['A', 'B'],
+            'formats': ['f4', 'f4'],
+            'offsets': [0, 8],
+            'itemsize': 16})
+        new_dtype = np.dtype(dtype.descr)
+        assert_equal(new_dtype.itemsize, 16)
+
+    def test_name_dtype_subclass(self):
+        # Ticket #4357
+        class user_def_subcls(np.void):
+            pass
+        assert_equal(np.dtype(user_def_subcls).name, 'user_def_subcls')
+
+    def test_zero_stride(self):
+        arr = np.ones(1, dtype="i8")
+        arr = np.broadcast_to(arr, 10)
+        assert arr.strides == (0,)
+        with pytest.raises(ValueError):
+            arr.dtype = "i1"
+
+class TestDTypeMakeCanonical:
+    def check_canonical(self, dtype, canonical):
+        """
+        Check most properties relevant to "canonical" versions of a dtype,
+        which is mainly native byte order for datatypes supporting this.
+
+        The main work is checking structured dtypes with fields, where we
+        reproduce most the actual logic used in the C-code.
+        """
+        assert type(dtype) is type(canonical)
+
+        # a canonical DType should always have equivalent casting (both ways)
+        assert np.can_cast(dtype, canonical, casting="equiv")
+        assert np.can_cast(canonical, dtype, casting="equiv")
+        # a canonical dtype (and its fields) is always native (checks fields):
+        assert canonical.isnative
+
+        # Check that canonical of canonical is the same (no casting):
+        assert np.result_type(canonical) == canonical
+
+        if not dtype.names:
+            # The flags currently never change for unstructured dtypes
+            assert dtype.flags == canonical.flags
+            return
+
+        # Must have all the needs API flag set:
+        assert dtype.flags & 0b10000
+
+        # Check that the fields are identical (including titles):
+        assert dtype.fields.keys() == canonical.fields.keys()
+
+        def aligned_offset(offset, alignment):
+            # round up offset:
+            return - (-offset // alignment) * alignment
+
+        totalsize = 0
+        max_alignment = 1
+        for name in dtype.names:
+            # each field is also canonical:
+            new_field_descr = canonical.fields[name][0]
+            self.check_canonical(dtype.fields[name][0], new_field_descr)
+
+            # Must have the "inherited" object related flags:
+            expected = 0b11011 & new_field_descr.flags
+            assert (canonical.flags & expected) == expected
+
+            if canonical.isalignedstruct:
+                totalsize = aligned_offset(totalsize, new_field_descr.alignment)
+                max_alignment = max(new_field_descr.alignment, max_alignment)
+
+            assert canonical.fields[name][1] == totalsize
+            # if a title exists, they must match (otherwise empty tuple):
+            assert dtype.fields[name][2:] == canonical.fields[name][2:]
+
+            totalsize += new_field_descr.itemsize
+
+        if canonical.isalignedstruct:
+            totalsize = aligned_offset(totalsize, max_alignment)
+        assert canonical.itemsize == totalsize
+        assert canonical.alignment == max_alignment
+
+    def test_simple(self):
+        dt = np.dtype(">i4")
+        assert np.result_type(dt).isnative
+        assert np.result_type(dt).num == dt.num
+
+        # dtype with empty space:
+        struct_dt = np.dtype(">i4,<i1,i8,V3")[["f0", "f2"]]
+        canonical = np.result_type(struct_dt)
+        assert canonical.itemsize == 4 + 8
+        assert canonical.isnative
+
+        # aligned struct dtype with empty space:
+        struct_dt = np.dtype(">i1,<i4,i8,V3", align=True)[["f0", "f2"]]
+        canonical = np.result_type(struct_dt)
+        assert canonical.isalignedstruct
+        assert canonical.itemsize == np.dtype("i8").alignment + 8
+        assert canonical.isnative
+
+    def test_object_flag_not_inherited(self):
+        # The following dtype still indicates "object", because its included
+        # in the unaccessible space (maybe this could change at some point):
+        arr = np.ones(3, "i,O,i")[["f0", "f2"]]
+        assert arr.dtype.hasobject
+        canonical_dt = np.result_type(arr.dtype)
+        assert not canonical_dt.hasobject
+
+    @pytest.mark.slow
+    @hypothesis.given(dtype=hynp.nested_dtypes())
+    def test_make_canonical_hypothesis(self, dtype):
+        canonical = np.result_type(dtype)
+        self.check_canonical(dtype, canonical)
+        # result_type with two arguments should always give identical results:
+        two_arg_result = np.result_type(dtype, dtype)
+        assert np.can_cast(two_arg_result, canonical, casting="no")
+
+    @pytest.mark.slow
+    @hypothesis.given(
+            dtype=hypothesis.extra.numpy.array_dtypes(
+                subtype_strategy=hypothesis.extra.numpy.array_dtypes(),
+                min_size=5, max_size=10, allow_subarrays=True),
+            random=hypothesis.strategies.randoms())
+    def test_structured(self, dtype, random):
+        # Pick 4 of the fields at random.  This will leave empty space in the
+        # dtype (since we do not canonicalize it here).
+        field_subset = random.sample(dtype.names, k=4)
+        dtype_with_empty_space = dtype[field_subset]
+        assert dtype_with_empty_space.itemsize == dtype.itemsize
+        canonicalized = np.result_type(dtype_with_empty_space)
+        self.check_canonical(dtype_with_empty_space, canonicalized)
+        # promotion with two arguments should always give identical results:
+        two_arg_result = np.promote_types(
+                dtype_with_empty_space, dtype_with_empty_space)
+        assert np.can_cast(two_arg_result, canonicalized, casting="no")
+
+        # Ensure that we also check aligned struct (check the opposite, in
+        # case hypothesis grows support for `align`.  Then repeat the test:
+        dtype_aligned = np.dtype(dtype.descr, align=not dtype.isalignedstruct)
+        dtype_with_empty_space = dtype_aligned[field_subset]
+        assert dtype_with_empty_space.itemsize == dtype_aligned.itemsize
+        canonicalized = np.result_type(dtype_with_empty_space)
+        self.check_canonical(dtype_with_empty_space, canonicalized)
+        # promotion with two arguments should always give identical results:
+        two_arg_result = np.promote_types(
+            dtype_with_empty_space, dtype_with_empty_space)
+        assert np.can_cast(two_arg_result, canonicalized, casting="no")
+
+
+class TestPickling:
+
+    def check_pickling(self, dtype):
+        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+            buf = pickle.dumps(dtype, proto)
+            # The dtype pickling itself pickles `np.dtype` if it is pickled
+            # as a singleton `dtype` should be stored in the buffer:
+            assert b"_DType_reconstruct" not in buf
+            assert b"dtype" in buf
+            pickled = pickle.loads(buf)
+            assert_equal(pickled, dtype)
+            assert_equal(pickled.descr, dtype.descr)
+            if dtype.metadata is not None:
+                assert_equal(pickled.metadata, dtype.metadata)
+            # Check the reconstructed dtype is functional
+            x = np.zeros(3, dtype=dtype)
+            y = np.zeros(3, dtype=pickled)
+            assert_equal(x, y)
+            assert_equal(x[0], y[0])
+
+    @pytest.mark.skipif(not IS_64BIT, reason="test requires 64-bit system")
+    @pytest.mark.xfail(reason="dtype conversion doesn't allow this yet.")
+    def test_pickling_large(self):
+        # The actual itemsize is larger than a c-integer here.
+        dtype = np.dtype(f"({2**31},)i")
+        self.check_pickling(dtype)
+        dtype = np.dtype(f"({2**31},)i", metadata={"a": "b"})
+        self.check_pickling(dtype)
+
+    @pytest.mark.parametrize('t', [int, float, complex, np.int32, str, object,
+                                   bool])
+    def test_builtin(self, t):
+        self.check_pickling(np.dtype(t))
+
+    def test_structured(self):
+        dt = np.dtype(([('a', '>f4', (2, 1)), ('b', '<f8', (1, 3))], (2, 2)))
+        self.check_pickling(dt)
+
+    def test_structured_aligned(self):
+        dt = np.dtype('i4, i1', align=True)
+        self.check_pickling(dt)
+
+    def test_structured_unaligned(self):
+        dt = np.dtype('i4, i1', align=False)
+        self.check_pickling(dt)
+
+    def test_structured_padded(self):
+        dt = np.dtype({
+            'names': ['A', 'B'],
+            'formats': ['f4', 'f4'],
+            'offsets': [0, 8],
+            'itemsize': 16})
+        self.check_pickling(dt)
+
+    def test_structured_titles(self):
+        dt = np.dtype({'names': ['r', 'b'],
+                       'formats': ['u1', 'u1'],
+                       'titles': ['Red pixel', 'Blue pixel']})
+        self.check_pickling(dt)
+
+    @pytest.mark.parametrize('base', ['m8', 'M8'])
+    @pytest.mark.parametrize('unit', ['', 'Y', 'M', 'W', 'D', 'h', 'm', 's',
+                                      'ms', 'us', 'ns', 'ps', 'fs', 'as'])
+    def test_datetime(self, base, unit):
+        dt = np.dtype(f'{base}[{unit}]' if unit else base)
+        self.check_pickling(dt)
+        if unit:
+            dt = np.dtype(f'{base}[7{unit}]')
+            self.check_pickling(dt)
+
+    def test_metadata(self):
+        dt = np.dtype(int, metadata={'datum': 1})
+        self.check_pickling(dt)
+
+    @pytest.mark.parametrize("DType",
+        [type(np.dtype(t)) for t in np.typecodes['All']] +
+        [type(np.dtype(rational)), np.dtype])
+    def test_pickle_dtype_class(self, DType):
+        # Check that DTypes (the classes/types) roundtrip when pickling
+        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+            roundtrip_DType = pickle.loads(pickle.dumps(DType, proto))
+            assert roundtrip_DType is DType
+
+    @pytest.mark.parametrize("dt",
+        [np.dtype(t) for t in np.typecodes['All']] +
+        [np.dtype(rational)])
+    def test_pickle_dtype(self, dt):
+        # Check that dtype instances roundtrip when pickling and that pickling
+        # doesn't change the hash value
+        pre_pickle_hash = hash(dt)
+        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+            roundtrip_dt = pickle.loads(pickle.dumps(dt, proto))
+            assert roundtrip_dt == dt
+            assert hash(roundtrip_dt) == pre_pickle_hash
+
+
+class TestPromotion:
+    """Test cases related to more complex DType promotions.  Further promotion
+    tests are defined in `test_numeric.py`
+    """
+    @pytest.mark.parametrize(["other", "expected"],
+            [(2**16 - 1, np.complex64),
+             (2**32 - 1, np.complex64),
+             (np.float16(2), np.complex64),
+             (np.float32(2), np.complex64),
+             (np.longdouble(2), np.clongdouble),
+             # Base of the double value to sidestep any rounding issues:
+             (np.longdouble(np.nextafter(1.7e308, 0.)), np.clongdouble),
+             # Additionally use "nextafter" so the cast can't round down:
+             (np.longdouble(np.nextafter(1.7e308, np.inf)), np.clongdouble),
+             # repeat for complex scalars:
+             (np.complex64(2), np.complex64),
+             (np.clongdouble(2), np.clongdouble),
+             # Base of the double value to sidestep any rounding issues:
+             (np.clongdouble(np.nextafter(1.7e308, 0.) * 1j), np.clongdouble),
+             # Additionally use "nextafter" so the cast can't round down:
+             (np.clongdouble(np.nextafter(1.7e308, np.inf)), np.clongdouble),
+             ])
+    def test_complex_other_value_based(self, other, expected):
+        # This would change if we modify the value based promotion
+        min_complex = np.dtype(np.complex64)
+
+        res = np.result_type(other, min_complex)
+        assert res == expected
+        # Check the same for a simple ufunc call that uses the same logic:
+        res = np.minimum(other, np.ones(3, dtype=min_complex)).dtype
+        assert res == expected
+
+    @pytest.mark.parametrize(["other", "expected"],
+                 [(np.bool, np.complex128),
+                  (np.int64, np.complex128),
+                  (np.float16, np.complex64),
+                  (np.float32, np.complex64),
+                  (np.float64, np.complex128),
+                  (np.longdouble, np.clongdouble),
+                  (np.complex64, np.complex64),
+                  (np.complex128, np.complex128),
+                  (np.clongdouble, np.clongdouble),
+                  ])
+    def test_complex_scalar_value_based(self, other, expected):
+        # This would change if we modify the value based promotion
+        complex_scalar = 1j
+
+        res = np.result_type(other, complex_scalar)
+        assert res == expected
+        # Check the same for a simple ufunc call that uses the same logic:
+        res = np.minimum(np.ones(3, dtype=other), complex_scalar).dtype
+        assert res == expected
+
+    def test_complex_pyscalar_promote_rational(self):
+        with pytest.raises(TypeError,
+                match=r".* no common DType exists for the given inputs"):
+            np.result_type(1j, rational)
+
+        with pytest.raises(TypeError,
+                match=r".* no common DType exists for the given inputs"):
+            np.result_type(1j, rational(1, 2))
+
+    @pytest.mark.parametrize("val", [2, 2**32, 2**63, 2**64, 2 * 100])
+    def test_python_integer_promotion(self, val):
+        # If we only pass scalars (mainly python ones!), NEP 50 means
+        # that we get the default integer
+        expected_dtype = np.dtype(int)  # the default integer
+        assert np.result_type(val, 0) == expected_dtype
+        # With NEP 50, the NumPy scalar wins though:
+        assert np.result_type(val, np.int8(0)) == np.int8
+
+    @pytest.mark.parametrize(["other", "expected"],
+            [(1, rational), (1., np.float64)])
+    def test_float_int_pyscalar_promote_rational(self, other, expected):
+        # Note that rationals are a bit awkward as they promote with float64
+        # or default ints, but not float16 or uint8/int8 (which looks
+        # inconsistent here).  The new promotion fixed this (partially?)
+        assert np.result_type(other, rational) == expected
+        assert np.result_type(other, rational(1, 2)) == expected
+
+    @pytest.mark.parametrize(["dtypes", "expected"], [
+             # These promotions are not associative/commutative:
+             ([np.uint16, np.int16, np.float16], np.float32),
+             ([np.uint16, np.int8, np.float16], np.float32),
+             ([np.uint8, np.int16, np.float16], np.float32),
+             # The following promotions are not ambiguous, but cover code
+             # paths of abstract promotion (no particular logic being tested)
+             ([1, 1, np.float64], np.float64),
+             ([1, 1., np.complex128], np.complex128),
+             ([1, 1j, np.float64], np.complex128),
+             ([1., 1., np.int64], np.float64),
+             ([1., 1j, np.float64], np.complex128),
+             ([1j, 1j, np.float64], np.complex128),
+             ([1, True, np.bool], np.int_),
+            ])
+    def test_permutations_do_not_influence_result(self, dtypes, expected):
+        # Tests that most permutations do not influence the result.  In the
+        # above some uint and int combinations promote to a larger integer
+        # type, which would then promote to a larger than necessary float.
+        for perm in permutations(dtypes):
+            assert np.result_type(*perm) == expected
+
+
+def test_rational_dtype():
+    # test for bug gh-5719
+    a = np.array([1111], dtype=rational).astype
+    assert_raises(OverflowError, a, 'int8')
+
+    # test that dtype detection finds user-defined types
+    x = rational(1)
+    assert_equal(np.array([x, x]).dtype, np.dtype(rational))
+
+
+def test_dtypes_are_true():
+    # test for gh-6294
+    assert bool(np.dtype('f8'))
+    assert bool(np.dtype('i8'))
+    assert bool(np.dtype([('a', 'i8'), ('b', 'f4')]))
+
+
+def test_invalid_dtype_string():
+    # test for gh-10440
+    assert_raises(TypeError, np.dtype, 'f8,i8,[f8,i8]')
+    assert_raises(TypeError, np.dtype, 'Fl\xfcgel')
+
+
+def test_keyword_argument():
+    # test for https://github.com/numpy/numpy/pull/16574#issuecomment-642660971
+    assert np.dtype(dtype=np.float64) == np.dtype(np.float64)
+
+
+class TestFromDTypeAttribute:
+    def test_simple(self):
+        class dt:
+            dtype = np.dtype("f8")
+
+        assert np.dtype(dt) == np.float64
+        assert np.dtype(dt()) == np.float64
+
+    def test_recursive(self):
+        # This used to recurse. It now doesn't, we enforce the
+        # dtype attribute to be a dtype (and will not recurse).
+        class dt:
+            pass
+
+        dt.dtype = dt
+        with pytest.raises(ValueError):
+            np.dtype(dt)
+
+        dt_instance = dt()
+        dt_instance.dtype = dt
+        with pytest.raises(ValueError):
+            np.dtype(dt_instance)
+
+    def test_void_subtype(self):
+        class dt(np.void):
+            # This code path is fully untested before, so it is unclear
+            # what this should be useful for. Note that if np.void is used
+            # numpy will think we are deallocating a base type [1.17, 2019-02].
+            dtype = np.dtype("f,f")
+
+        np.dtype(dt)
+        np.dtype(dt(1))
+
+    def test_void_subtype_recursive(self):
+        # Used to recurse, but dtype is now enforced to be a dtype instance
+        # so that we do not recurse.
+        class vdt(np.void):
+            pass
+
+        vdt.dtype = vdt
+
+        with pytest.raises(ValueError):
+            np.dtype(vdt)
+
+        with pytest.raises(ValueError):
+            np.dtype(vdt(1))
+
+
+class TestFromDTypeProtocol:
+    def test_simple(self):
+        class A:
+            dtype = np.dtype("f8")
+
+        assert np.dtype(A()) == np.dtype(np.float64)
+
+    def test_not_a_dtype(self):
+        # This also prevents coercion as a trivial path, although
+        # a custom error may be nicer.
+        class ArrayLike:
+            __numpy_dtype__ = None
+            dtype = np.dtype("f8")
+
+        with pytest.raises(ValueError, match=".*__numpy_dtype__.*"):
+            np.dtype(ArrayLike())
+
+    def test_prevent_dtype_explicit(self):
+        class ArrayLike:
+            @property
+            def __numpy_dtype__(self):
+                raise RuntimeError("my error!")
+
+        with pytest.raises(RuntimeError, match="my error!"):
+            np.dtype(ArrayLike())
+
+    def test_type_object(self):
+        class TypeWithProperty:
+            @property
+            def __numpy_dtype__(self):
+                raise RuntimeError("not reached")
+
+        # Arbitrary types go to object currently, and the
+        # protocol doesn't prevent that.
+        assert np.dtype(TypeWithProperty) == object
+
+
+class TestDTypeClasses:
+    @pytest.mark.parametrize("dtype", list(np.typecodes['All']) + [rational])
+    def test_basic_dtypes_subclass_properties(self, dtype):
+        # Note: Except for the isinstance and type checks, these attributes
+        #       are considered currently private and may change.
+        dtype = np.dtype(dtype)
+        assert isinstance(dtype, np.dtype)
+        assert type(dtype) is not np.dtype
+        if dtype.type.__name__ != "rational":
+            dt_name = type(dtype).__name__.lower().removesuffix("dtype")
+            if dt_name in {"uint", "int"}:
+                # The scalar names has a `c` attached because "int" is Python
+                # int and that is long...
+                dt_name += "c"
+            sc_name = dtype.type.__name__
+            assert dt_name == sc_name.strip("_")
+            assert type(dtype).__module__ == "numpy.dtypes"
+
+            assert getattr(numpy.dtypes, type(dtype).__name__) is type(dtype)
+        else:
+            assert type(dtype).__name__ == "dtype[rational]"
+            assert type(dtype).__module__ == "numpy"
+
+        assert not type(dtype)._abstract
+
+        # the flexible dtypes and datetime/timedelta have additional parameters
+        # which are more than just storage information, these would need to be
+        # given when creating a dtype:
+        parametric = (np.void, np.str_, np.bytes_, np.datetime64, np.timedelta64)
+        if dtype.type not in parametric:
+            assert not type(dtype)._parametric
+            assert type(dtype)() is dtype
+        else:
+            assert type(dtype)._parametric
+            with assert_raises(TypeError):
+                type(dtype)()
+
+    def test_dtype_superclass(self):
+        assert type(np.dtype) is not type
+        assert isinstance(np.dtype, type)
+
+        assert type(np.dtype).__name__ == "_DTypeMeta"
+        assert type(np.dtype).__module__ == "numpy"
+        assert np.dtype._abstract
+
+    def test_is_numeric(self):
+        all_codes = set(np.typecodes['All'])
+        numeric_codes = set(np.typecodes['AllInteger'] +
+                            np.typecodes['AllFloat'] + '?')
+        non_numeric_codes = all_codes - numeric_codes
+
+        for code in numeric_codes:
+            assert type(np.dtype(code))._is_numeric
+
+        for code in non_numeric_codes:
+            assert not type(np.dtype(code))._is_numeric
+
+    @pytest.mark.parametrize("int_", ["UInt", "Int"])
+    @pytest.mark.parametrize("size", [8, 16, 32, 64])
+    def test_integer_alias_names(self, int_, size):
+        DType = getattr(numpy.dtypes, f"{int_}{size}DType")
+        sctype = getattr(numpy, f"{int_.lower()}{size}")
+        assert DType.type is sctype
+        assert DType.__name__.lower().removesuffix("dtype") == sctype.__name__
+
+    @pytest.mark.parametrize("name",
+            ["Half", "Float", "Double", "CFloat", "CDouble"])
+    def test_float_alias_names_not_present(self, name):
+        assert not hasattr(numpy.dtypes, f"{name}DType")
+
+    def test_scalar_helper_all_dtypes(self):
+        for dtype in np.dtypes.__all__:
+            dt_class = getattr(np.dtypes, dtype)
+            dt = np.dtype(dt_class)
+            if dt.char not in 'OTVM':
+                assert np._core.multiarray.scalar(dt) == dt.type()
+            elif dt.char == 'V':
+                assert np._core.multiarray.scalar(dt) == dt.type(b'\x00')
+            elif dt.char == 'M':
+                # can't do anything with this without generating ValueError
+                # because 'M' has no units
+                _ = np._core.multiarray.scalar(dt)
+            else:
+                with pytest.raises(TypeError):
+                    np._core.multiarray.scalar(dt)
+
+
+class TestFromCTypes:
+
+    @staticmethod
+    def check(ctype, dtype):
+        dtype = np.dtype(dtype)
+        assert np.dtype(ctype) == dtype
+        assert np.dtype(ctype()) == dtype
+        assert ctypes.sizeof(ctype) == dtype.itemsize
+
+    def test_array(self):
+        c8 = ctypes.c_uint8
+        self.check(     3 * c8,  (np.uint8, (3,)))
+        self.check(     1 * c8,  (np.uint8, (1,)))
+        self.check(     0 * c8,  (np.uint8, (0,)))
+        self.check(1 * (3 * c8), ((np.uint8, (3,)), (1,)))
+        self.check(3 * (1 * c8), ((np.uint8, (1,)), (3,)))
+
+    def test_padded_structure(self):
+        class PaddedStruct(ctypes.Structure):
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16)
+            ]
+        expected = np.dtype([
+            ('a', np.uint8),
+            ('b', np.uint16)
+        ], align=True)
+        self.check(PaddedStruct, expected)
+
+    def test_bit_fields(self):
+        class BitfieldStruct(ctypes.Structure):
+            _fields_ = [
+                ('a', ctypes.c_uint8, 7),
+                ('b', ctypes.c_uint8, 1)
+            ]
+        assert_raises(TypeError, np.dtype, BitfieldStruct)
+        assert_raises(TypeError, np.dtype, BitfieldStruct())
+
+    def test_pointer(self):
+        p_uint8 = ctypes.POINTER(ctypes.c_uint8)
+        assert_raises(TypeError, np.dtype, p_uint8)
+
+    def test_size_t(self):
+        assert np.dtype(np.uintp) is np.dtype("N")
+        self.check(ctypes.c_size_t, np.uintp)
+
+    def test_void_pointer(self):
+        self.check(ctypes.c_void_p, "P")
+
+    def test_union(self):
+        class Union(ctypes.Union):
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16),
+            ]
+        expected = np.dtype({
+            "names": ['a', 'b'],
+            "formats": [np.uint8, np.uint16],
+            "offsets": [0, 0],
+            "itemsize": 2
+        })
+        self.check(Union, expected)
+
+    def test_union_with_struct_packed(self):
+        class Struct(ctypes.Structure):
+            _pack_ = 1
+            _fields_ = [
+                ('one', ctypes.c_uint8),
+                ('two', ctypes.c_uint32)
+            ]
+
+        class Union(ctypes.Union):
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16),
+                ('c', ctypes.c_uint32),
+                ('d', Struct),
+            ]
+        expected = np.dtype({
+            "names": ['a', 'b', 'c', 'd'],
+            "formats": ['u1', np.uint16, np.uint32, [('one', 'u1'), ('two', np.uint32)]],
+            "offsets": [0, 0, 0, 0],
+            "itemsize": ctypes.sizeof(Union)
+        })
+        self.check(Union, expected)
+
+    def test_union_packed(self):
+        class Struct(ctypes.Structure):
+            _fields_ = [
+                ('one', ctypes.c_uint8),
+                ('two', ctypes.c_uint32)
+            ]
+            _pack_ = 1
+
+        class Union(ctypes.Union):
+            _pack_ = 1
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16),
+                ('c', ctypes.c_uint32),
+                ('d', Struct),
+            ]
+        expected = np.dtype({
+            "names": ['a', 'b', 'c', 'd'],
+            "formats": ['u1', np.uint16, np.uint32, [('one', 'u1'), ('two', np.uint32)]],
+            "offsets": [0, 0, 0, 0],
+            "itemsize": ctypes.sizeof(Union)
+        })
+        self.check(Union, expected)
+
+    def test_packed_structure(self):
+        class PackedStructure(ctypes.Structure):
+            _pack_ = 1
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16)
+            ]
+        expected = np.dtype([
+            ('a', np.uint8),
+            ('b', np.uint16)
+        ])
+        self.check(PackedStructure, expected)
+
+    def test_large_packed_structure(self):
+        class PackedStructure(ctypes.Structure):
+            _pack_ = 2
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16),
+                ('c', ctypes.c_uint8),
+                ('d', ctypes.c_uint16),
+                ('e', ctypes.c_uint32),
+                ('f', ctypes.c_uint32),
+                ('g', ctypes.c_uint8)
+                ]
+        expected = np.dtype({
+            "formats": [np.uint8, np.uint16, np.uint8, np.uint16, np.uint32, np.uint32, np.uint8],
+            "offsets": [0, 2, 4, 6, 8, 12, 16],
+            "names": ['a', 'b', 'c', 'd', 'e', 'f', 'g'],
+            "itemsize": 18})
+        self.check(PackedStructure, expected)
+
+    def test_big_endian_structure_packed(self):
+        class BigEndStruct(ctypes.BigEndianStructure):
+            _fields_ = [
+                ('one', ctypes.c_uint8),
+                ('two', ctypes.c_uint32)
+            ]
+            _pack_ = 1
+        expected = np.dtype([('one', 'u1'), ('two', '>u4')])
+        self.check(BigEndStruct, expected)
+
+    def test_little_endian_structure_packed(self):
+        class LittleEndStruct(ctypes.LittleEndianStructure):
+            _fields_ = [
+                ('one', ctypes.c_uint8),
+                ('two', ctypes.c_uint32)
+            ]
+            _pack_ = 1
+        expected = np.dtype([('one', 'u1'), ('two', '<u4')])
+        self.check(LittleEndStruct, expected)
+
+    def test_little_endian_structure(self):
+        class PaddedStruct(ctypes.LittleEndianStructure):
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16)
+            ]
+        expected = np.dtype([
+            ('a', '<B'),
+            ('b', '<H')
+        ], align=True)
+        self.check(PaddedStruct, expected)
+
+    def test_big_endian_structure(self):
+        class PaddedStruct(ctypes.BigEndianStructure):
+            _fields_ = [
+                ('a', ctypes.c_uint8),
+                ('b', ctypes.c_uint16)
+            ]
+        expected = np.dtype([
+            ('a', '>B'),
+            ('b', '>H')
+        ], align=True)
+        self.check(PaddedStruct, expected)
+
+    def test_simple_endian_types(self):
+        self.check(ctypes.c_uint16.__ctype_le__, np.dtype('<u2'))
+        self.check(ctypes.c_uint16.__ctype_be__, np.dtype('>u2'))
+        self.check(ctypes.c_uint8.__ctype_le__, np.dtype('u1'))
+        self.check(ctypes.c_uint8.__ctype_be__, np.dtype('u1'))
+
+    all_types = set(np.typecodes['All'])
+    all_pairs = permutations(all_types, 2)
+
+    @pytest.mark.parametrize("pair", all_pairs)
+    def test_pairs(self, pair):
+        """
+        Check that np.dtype('x,y') matches [np.dtype('x'), np.dtype('y')]
+        Example: np.dtype('d,I') -> dtype([('f0', '<f8'), ('f1', '<u4')])
+        """
+        # gh-5645: check that np.dtype('i,L') can be used
+        pair_type = np.dtype('{},{}'.format(*pair))
+        expected = np.dtype([('f0', pair[0]), ('f1', pair[1])])
+        assert_equal(pair_type, expected)
+
+
+class TestUserDType:
+    @pytest.mark.leaks_references(reason="dynamically creates custom dtype.")
+    @pytest.mark.thread_unsafe(reason="crashes when GIL disabled, dtype setup is thread-unsafe")
+    def test_custom_structured_dtype(self):
+        class mytype:
+            pass
+
+        blueprint = np.dtype([("field", object)])
+        dt = create_custom_field_dtype(blueprint, mytype, 0)
+        assert dt.type == mytype
+        # We cannot (currently) *create* this dtype with `np.dtype` because
+        # mytype does not inherit from `np.generic`.  This seems like an
+        # unnecessary restriction, but one that has been around forever:
+        assert np.dtype(mytype) == np.dtype("O")
+
+        if HAS_REFCOUNT:
+            # Create an array and test that memory gets cleaned up (gh-25949)
+            o = object()
+            startcount = sys.getrefcount(o)
+            a = np.array([o], dtype=dt)
+            del a
+            assert sys.getrefcount(o) == startcount
+
+    @pytest.mark.thread_unsafe(reason="crashes when GIL disabled, dtype setup is thread-unsafe")
+    def test_custom_structured_dtype_errors(self):
+        class mytype:
+            pass
+
+        blueprint = np.dtype([("field", object)])
+
+        with pytest.raises(ValueError):
+            # Tests what happens if fields are unset during creation
+            # which is currently rejected due to the containing object
+            # (see PyArray_RegisterDataType).
+            create_custom_field_dtype(blueprint, mytype, 1)
+
+        with pytest.raises(RuntimeError):
+            # Tests that a dtype must have its type field set up to np.dtype
+            # or in this case a builtin instance.
+            create_custom_field_dtype(blueprint, mytype, 2)
+
+
+class TestClassGetItem:
+    def test_dtype(self) -> None:
+        alias = np.dtype[Any]
+        assert isinstance(alias, types.GenericAlias)
+        assert alias.__origin__ is np.dtype
+
+    @pytest.mark.parametrize("code", np.typecodes["All"])
+    def test_dtype_subclass(self, code: str) -> None:
+        cls = type(np.dtype(code))
+        alias = cls[Any]
+        assert isinstance(alias, types.GenericAlias)
+        assert alias.__origin__ is cls
+
+    @pytest.mark.parametrize("arg_len", range(4))
+    def test_subscript_tuple(self, arg_len: int) -> None:
+        arg_tup = (Any,) * arg_len
+        if arg_len == 1:
+            assert np.dtype[arg_tup]
+        else:
+            with pytest.raises(TypeError):
+                np.dtype[arg_tup]
+
+    def test_subscript_scalar(self) -> None:
+        assert np.dtype[Any]
+
+
+def test_result_type_integers_and_unitless_timedelta64():
+    # Regression test for gh-20077.  The following call of `result_type`
+    # would cause a seg. fault.
+    td = np.timedelta64(4)
+    result = np.result_type(0, td)
+    assert_dtype_equal(result, td.dtype)
+
+
+def test_creating_dtype_with_dtype_class_errors():
+    # Regression test for #25031, calling `np.dtype` with itself segfaulted.
+    with pytest.raises(TypeError, match="Cannot convert np.dtype into a"):
+        np.array(np.ones(10), dtype=np.dtype)
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc")
+class TestDTypeSignatures:
+    def test_signature_dtype(self):
+        sig = inspect.signature(np.dtype)
+
+        assert len(sig.parameters) == 4
+
+        assert "dtype" in sig.parameters
+        assert sig.parameters["dtype"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+        assert sig.parameters["dtype"].default is inspect.Parameter.empty
+
+        assert "align" in sig.parameters
+        assert sig.parameters["align"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+        assert sig.parameters["align"].default is False
+
+        assert "copy" in sig.parameters
+        assert sig.parameters["copy"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+        assert sig.parameters["copy"].default is False
+
+        # the optional `metadata` parameter has no default, so `**kwargs` must be used
+        assert "kwargs" in sig.parameters
+        assert sig.parameters["kwargs"].kind is inspect.Parameter.VAR_KEYWORD
+        assert sig.parameters["kwargs"].default is inspect.Parameter.empty
+
+    def test_signature_dtype_newbyteorder(self):
+        sig = inspect.signature(np.dtype.newbyteorder)
+
+        assert len(sig.parameters) == 2
+
+        assert "self" in sig.parameters
+        assert sig.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY
+        assert sig.parameters["self"].default is inspect.Parameter.empty
+
+        assert "new_order" in sig.parameters
+        assert sig.parameters["new_order"].kind is inspect.Parameter.POSITIONAL_ONLY
+        assert sig.parameters["new_order"].default == "S"
+
+    @pytest.mark.parametrize("typename", np.dtypes.__all__)
+    def test_signature_dtypes_classes(self, typename: str):
+        dtype_type = getattr(np.dtypes, typename)
+        sig = inspect.signature(dtype_type)
+
+        match typename.lower().removesuffix("dtype"):
+            case "bytes" | "str":
+                params_expect = {"size"}
+            case "void":
+                params_expect = {"length"}
+            case "datetime64" | "timedelta64":
+                params_expect = {"unit"}
+            case "string":
+                # `na_object` cannot be used in the text signature because of its
+                # `np._NoValue` default, which isn't supported by `inspect.signature`,
+                # so `**kwargs` is used instead.
+                params_expect = {"coerce", "kwargs"}
+            case _:
+                params_expect = set()
+
+        params_actual = set(sig.parameters)
+        assert params_actual == params_expect
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_einsum.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_einsum.py
new file mode 100644
index 0000000000000000000000000000000000000000..942fbe25945038e3c3d813d2af697bc749d14314
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_einsum.py
@@ -0,0 +1,1351 @@
+import itertools
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy.testing import (
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+# Setup for optimize einsum
+chars = 'abcdefghij'
+sizes = np.array([2, 3, 4, 5, 4, 3, 2, 6, 5, 4, 3])
+global_size_dict = dict(zip(chars, sizes))
+
+
+class TestEinsum:
+    @pytest.mark.parametrize("do_opt", [True, False])
+    @pytest.mark.parametrize("einsum_fn", [np.einsum, np.einsum_path])
+    def test_einsum_errors(self, do_opt, einsum_fn):
+        # Need enough arguments
+        assert_raises(ValueError, einsum_fn, optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "", optimize=do_opt)
+
+        # subscripts must be a string
+        assert_raises(TypeError, einsum_fn, 0, 0, optimize=do_opt)
+
+        # issue 4528 revealed a segfault with this call
+        assert_raises(TypeError, einsum_fn, *(None,) * 63, optimize=do_opt)
+
+        # number of operands must match count in subscripts string
+        assert_raises(ValueError, einsum_fn, "", 0, 0, optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, ",", 0, [0], [0],
+                      optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, ",", [0], optimize=do_opt)
+
+        # can't have more subscripts than dimensions in the operand
+        assert_raises(ValueError, einsum_fn, "i", 0, optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "ij", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "...i", 0, optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "i...j", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "i...", 0, optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "ij...", [0, 0], optimize=do_opt)
+
+        # invalid ellipsis
+        assert_raises(ValueError, einsum_fn, "i..", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, ".i...", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "j->..j", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "j->.j...", [0, 0],
+                      optimize=do_opt)
+
+        # invalid subscript character
+        assert_raises(ValueError, einsum_fn, "i%...", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "...j$", [0, 0], optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "i->&", [0, 0], optimize=do_opt)
+
+        # output subscripts must appear in input
+        assert_raises(ValueError, einsum_fn, "i->ij", [0, 0], optimize=do_opt)
+
+        # output subscripts may only be specified once
+        assert_raises(ValueError, einsum_fn, "ij->jij", [[0, 0], [0, 0]],
+                      optimize=do_opt)
+
+        # dimensions must match when being collapsed
+        assert_raises(ValueError, einsum_fn, "ii",
+                      np.arange(6).reshape(2, 3), optimize=do_opt)
+        assert_raises(ValueError, einsum_fn, "ii->i",
+                      np.arange(6).reshape(2, 3), optimize=do_opt)
+
+        with assert_raises_regex(ValueError, "'b'"):
+            # gh-11221 - 'c' erroneously appeared in the error message
+            a = np.ones((3, 3, 4, 5, 6))
+            b = np.ones((3, 4, 5))
+            einsum_fn('aabcb,abc', a, b)
+
+        with pytest.raises(ValueError):
+            a = np.arange(3)
+            # einsum_path does not yet accept kwarg 'casting'
+            np.einsum('ij->j', [a, a], casting='same_value')
+
+    def test_einsum_sorting_behavior(self):
+        # Case 1: 26 dimensions (all lowercase indices)
+        n1 = 26
+        x1 = np.random.random((1,) * n1)
+        path1 = np.einsum_path(x1, range(n1))[1]  # Get einsum path details
+        output_indices1 = path1.split("->")[-1].strip()  # Extract output indices
+        # Assert indices are only uppercase letters and sorted correctly
+        assert all(c.isupper() for c in output_indices1), (
+            "Output indices for n=26 should use uppercase letters only: "
+            f"{output_indices1}"
+        )
+        assert_equal(
+            output_indices1,
+            ''.join(sorted(output_indices1)),
+            err_msg=(
+                "Output indices for n=26 are not lexicographically sorted: "
+                f"{output_indices1}"
+            )
+        )
+
+        # Case 2: 27 dimensions (includes uppercase indices)
+        n2 = 27
+        x2 = np.random.random((1,) * n2)
+        path2 = np.einsum_path(x2, range(n2))[1]
+        output_indices2 = path2.split("->")[-1].strip()
+        # Assert indices include both uppercase and lowercase letters
+        assert any(c.islower() for c in output_indices2), (
+            "Output indices for n=27 should include uppercase letters: "
+            f"{output_indices2}"
+        )
+        # Assert output indices are sorted uppercase before lowercase
+        assert_equal(
+            output_indices2,
+            ''.join(sorted(output_indices2)),
+            err_msg=(
+                "Output indices for n=27 are not lexicographically sorted: "
+                f"{output_indices2}"
+            )
+        )
+
+        # Additional Check: Ensure dimensions correspond correctly to indices
+        # Generate expected mapping of dimensions to indices
+        expected_indices = [
+            chr(i + ord('A')) if i < 26 else chr(i - 26 + ord('a'))
+            for i in range(n2)
+        ]
+        assert_equal(
+            output_indices2,
+            ''.join(expected_indices),
+            err_msg=(
+                "Output indices do not map to the correct dimensions. Expected: "
+                f"{''.join(expected_indices)}, Got: {output_indices2}"
+            )
+        )
+
+    @pytest.mark.parametrize("do_opt", [True, False])
+    def test_einsum_specific_errors(self, do_opt):
+        # out parameter must be an array
+        assert_raises(TypeError, np.einsum, "", 0, out='test',
+                      optimize=do_opt)
+
+        # order parameter must be a valid order
+        assert_raises(ValueError, np.einsum, "", 0, order='W',
+                      optimize=do_opt)
+
+        # casting parameter must be a valid casting
+        assert_raises(ValueError, np.einsum, "", 0, casting='blah',
+                      optimize=do_opt)
+
+        # dtype parameter must be a valid dtype
+        assert_raises(TypeError, np.einsum, "", 0, dtype='bad_data_type',
+                      optimize=do_opt)
+
+        # other keyword arguments are rejected
+        assert_raises(TypeError, np.einsum, "", 0, bad_arg=0, optimize=do_opt)
+
+        # broadcasting to new dimensions must be enabled explicitly
+        assert_raises(ValueError, np.einsum, "i", np.arange(6).reshape(2, 3),
+                      optimize=do_opt)
+        assert_raises(ValueError, np.einsum, "i->i", [[0, 1], [0, 1]],
+                      out=np.arange(4).reshape(2, 2), optimize=do_opt)
+
+        # Check order kwarg, asanyarray allows 1d to pass through
+        assert_raises(ValueError, np.einsum, "i->i",
+                      np.arange(6).reshape(-1, 1), optimize=do_opt, order='d')
+
+    def test_einsum_object_errors(self):
+        # Exceptions created by object arithmetic should
+        # successfully propagate
+
+        class CustomException(Exception):
+            pass
+
+        class DestructoBox:
+
+            def __init__(self, value, destruct):
+                self._val = value
+                self._destruct = destruct
+
+            def __add__(self, other):
+                tmp = self._val + other._val
+                if tmp >= self._destruct:
+                    raise CustomException
+                else:
+                    self._val = tmp
+                    return self
+
+            def __radd__(self, other):
+                if other == 0:
+                    return self
+                else:
+                    return self.__add__(other)
+
+            def __mul__(self, other):
+                tmp = self._val * other._val
+                if tmp >= self._destruct:
+                    raise CustomException
+                else:
+                    self._val = tmp
+                    return self
+
+            def __rmul__(self, other):
+                if other == 0:
+                    return self
+                else:
+                    return self.__mul__(other)
+
+        a = np.array([DestructoBox(i, 5) for i in range(1, 10)],
+                     dtype='object').reshape(3, 3)
+
+        # raised from unbuffered_loop_nop1_ndim2
+        assert_raises(CustomException, np.einsum, "ij->i", a)
+
+        # raised from unbuffered_loop_nop1_ndim3
+        b = np.array([DestructoBox(i, 100) for i in range(27)],
+                     dtype='object').reshape(3, 3, 3)
+        assert_raises(CustomException, np.einsum, "i...k->...", b)
+
+        # raised from unbuffered_loop_nop2_ndim2
+        b = np.array([DestructoBox(i, 55) for i in range(1, 4)],
+                     dtype='object')
+        assert_raises(CustomException, np.einsum, "ij, j", a, b)
+
+        # raised from unbuffered_loop_nop2_ndim3
+        assert_raises(CustomException, np.einsum, "ij, jh", a, a)
+
+        # raised from PyArray_EinsteinSum
+        assert_raises(CustomException, np.einsum, "ij->", a)
+
+    def test_einsum_views(self):
+        # pass-through
+        for do_opt in [True, False]:
+            a = np.arange(6).reshape((2, 3))
+
+            b = np.einsum("...", a, optimize=do_opt)
+            assert_(b.base is a.base)
+
+            b = np.einsum(a, [Ellipsis], optimize=do_opt)
+            assert_(b.base is a.base)
+
+            b = np.einsum("ij", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, a)
+
+            b = np.einsum(a, [0, 1], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, a)
+
+            # output is writeable whenever input is writeable
+            b = np.einsum("...", a, optimize=do_opt)
+            assert_(b.flags['WRITEABLE'])
+            a.flags['WRITEABLE'] = False
+            b = np.einsum("...", a, optimize=do_opt)
+            assert_(not b.flags['WRITEABLE'])
+
+            # transpose
+            a = np.arange(6).reshape((2, 3))
+
+            b = np.einsum("ji", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, a.T)
+
+            b = np.einsum(a, [1, 0], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, a.T)
+
+            # diagonal
+            a = np.arange(9).reshape((3, 3))
+
+            b = np.einsum("ii->i", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[i, i] for i in range(3)])
+
+            b = np.einsum(a, [0, 0], [0], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[i, i] for i in range(3)])
+
+            # diagonal with various ways of broadcasting an additional dimension
+            a = np.arange(27).reshape((3, 3, 3))
+
+            b = np.einsum("...ii->...i", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [[x[i, i] for i in range(3)] for x in a])
+
+            b = np.einsum(a, [Ellipsis, 0, 0], [Ellipsis, 0], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [[x[i, i] for i in range(3)] for x in a])
+
+            b = np.einsum("ii...->...i", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [[x[i, i] for i in range(3)]
+                             for x in a.transpose(2, 0, 1)])
+
+            b = np.einsum(a, [0, 0, Ellipsis], [Ellipsis, 0], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [[x[i, i] for i in range(3)]
+                             for x in a.transpose(2, 0, 1)])
+
+            b = np.einsum("...ii->i...", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[:, i, i] for i in range(3)])
+
+            b = np.einsum(a, [Ellipsis, 0, 0], [0, Ellipsis], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[:, i, i] for i in range(3)])
+
+            b = np.einsum("jii->ij", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[:, i, i] for i in range(3)])
+
+            b = np.einsum(a, [1, 0, 0], [0, 1], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[:, i, i] for i in range(3)])
+
+            b = np.einsum("ii...->i...", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a.transpose(2, 0, 1)[:, i, i] for i in range(3)])
+
+            b = np.einsum(a, [0, 0, Ellipsis], [0, Ellipsis], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a.transpose(2, 0, 1)[:, i, i] for i in range(3)])
+
+            b = np.einsum("i...i->i...", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a.transpose(1, 0, 2)[:, i, i] for i in range(3)])
+
+            b = np.einsum(a, [0, Ellipsis, 0], [0, Ellipsis], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a.transpose(1, 0, 2)[:, i, i] for i in range(3)])
+
+            b = np.einsum("i...i->...i", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [[x[i, i] for i in range(3)]
+                             for x in a.transpose(1, 0, 2)])
+
+            b = np.einsum(a, [0, Ellipsis, 0], [Ellipsis, 0], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [[x[i, i] for i in range(3)]
+                             for x in a.transpose(1, 0, 2)])
+
+            # triple diagonal
+            a = np.arange(27).reshape((3, 3, 3))
+
+            b = np.einsum("iii->i", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[i, i, i] for i in range(3)])
+
+            b = np.einsum(a, [0, 0, 0], [0], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, [a[i, i, i] for i in range(3)])
+
+            # swap axes
+            a = np.arange(24).reshape((2, 3, 4))
+
+            b = np.einsum("ijk->jik", a, optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, a.swapaxes(0, 1))
+
+            b = np.einsum(a, [0, 1, 2], [1, 0, 2], optimize=do_opt)
+            assert_(b.base is a.base)
+            assert_equal(b, a.swapaxes(0, 1))
+
+    def check_einsum_sums(self, dtype, do_opt=False):
+        dtype = np.dtype(dtype)
+        # Check various sums.  Does many sizes to exercise unrolled loops.
+
+        # sum(a, axis=-1)
+        for n in range(1, 17):
+            a = np.arange(n, dtype=dtype)
+            b = np.sum(a, axis=-1)
+            if hasattr(b, 'astype'):
+                b = b.astype(dtype)
+            assert_equal(np.einsum("i->", a, optimize=do_opt), b)
+            assert_equal(np.einsum(a, [0], [], optimize=do_opt), b)
+
+        for n in range(1, 17):
+            a = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n)
+            b = np.sum(a, axis=-1)
+            if hasattr(b, 'astype'):
+                b = b.astype(dtype)
+            assert_equal(np.einsum("...i->...", a, optimize=do_opt), b)
+            assert_equal(np.einsum(a, [Ellipsis, 0], [Ellipsis], optimize=do_opt), b)
+
+        # sum(a, axis=0)
+        for n in range(1, 17):
+            a = np.arange(2 * n, dtype=dtype).reshape(2, n)
+            b = np.sum(a, axis=0)
+            if hasattr(b, 'astype'):
+                b = b.astype(dtype)
+            assert_equal(np.einsum("i...->...", a, optimize=do_opt), b)
+            assert_equal(np.einsum(a, [0, Ellipsis], [Ellipsis], optimize=do_opt), b)
+
+        for n in range(1, 17):
+            a = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n)
+            b = np.sum(a, axis=0)
+            if hasattr(b, 'astype'):
+                b = b.astype(dtype)
+            assert_equal(np.einsum("i...->...", a, optimize=do_opt), b)
+            assert_equal(np.einsum(a, [0, Ellipsis], [Ellipsis], optimize=do_opt), b)
+
+        # trace(a)
+        for n in range(1, 17):
+            a = np.arange(n * n, dtype=dtype).reshape(n, n)
+            b = np.trace(a)
+            if hasattr(b, 'astype'):
+                b = b.astype(dtype)
+            assert_equal(np.einsum("ii", a, optimize=do_opt), b)
+            assert_equal(np.einsum(a, [0, 0], optimize=do_opt), b)
+
+            # gh-15961: should accept numpy int64 type in subscript list
+            np_array = np.asarray([0, 0])
+            assert_equal(np.einsum(a, np_array, optimize=do_opt), b)
+            assert_equal(np.einsum(a, list(np_array), optimize=do_opt), b)
+
+        # multiply(a, b)
+        assert_equal(np.einsum("..., ...", 3, 4), 12)  # scalar case
+        for n in range(1, 17):
+            a = np.arange(3 * n, dtype=dtype).reshape(3, n)
+            b = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n)
+            assert_equal(np.einsum("..., ...", a, b, optimize=do_opt),
+                         np.multiply(a, b))
+            assert_equal(np.einsum(a, [Ellipsis], b, [Ellipsis], optimize=do_opt),
+                         np.multiply(a, b))
+
+        # inner(a,b)
+        for n in range(1, 17):
+            a = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n)
+            b = np.arange(n, dtype=dtype)
+            assert_equal(np.einsum("...i, ...i", a, b, optimize=do_opt), np.inner(a, b))
+            assert_equal(np.einsum(a, [Ellipsis, 0], b, [Ellipsis, 0], optimize=do_opt),
+                         np.inner(a, b))
+
+        for n in range(1, 11):
+            a = np.arange(n * 3 * 2, dtype=dtype).reshape(n, 3, 2)
+            b = np.arange(n, dtype=dtype)
+            assert_equal(np.einsum("i..., i...", a, b, optimize=do_opt),
+                         np.inner(a.T, b.T).T)
+            assert_equal(np.einsum(a, [0, Ellipsis], b, [0, Ellipsis], optimize=do_opt),
+                         np.inner(a.T, b.T).T)
+
+        # outer(a,b)
+        for n in range(1, 17):
+            a = np.arange(3, dtype=dtype) + 1
+            b = np.arange(n, dtype=dtype) + 1
+            assert_equal(np.einsum("i,j", a, b, optimize=do_opt),
+                         np.outer(a, b))
+            assert_equal(np.einsum(a, [0], b, [1], optimize=do_opt),
+                         np.outer(a, b))
+
+        # Suppress the complex warnings for the 'as f8' tests
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', np.exceptions.ComplexWarning)
+
+            # matvec(a,b) / a.dot(b) where a is matrix, b is vector
+            for n in range(1, 17):
+                a = np.arange(4 * n, dtype=dtype).reshape(4, n)
+                b = np.arange(n, dtype=dtype)
+                assert_equal(np.einsum("ij, j", a, b, optimize=do_opt),
+                             np.dot(a, b))
+                assert_equal(np.einsum(a, [0, 1], b, [1], optimize=do_opt),
+                             np.dot(a, b))
+
+                c = np.arange(4, dtype=dtype)
+                np.einsum("ij,j", a, b, out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c,
+                             np.dot(a.astype('f8'),
+                                    b.astype('f8')).astype(dtype))
+                c[...] = 0
+                np.einsum(a, [0, 1], b, [1], out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c,
+                             np.dot(a.astype('f8'),
+                                    b.astype('f8')).astype(dtype))
+
+            for n in range(1, 17):
+                a = np.arange(4 * n, dtype=dtype).reshape(4, n)
+                b = np.arange(n, dtype=dtype)
+                assert_equal(np.einsum("ji,j", a.T, b.T, optimize=do_opt),
+                             np.dot(b.T, a.T))
+                assert_equal(np.einsum(a.T, [1, 0], b.T, [1], optimize=do_opt),
+                             np.dot(b.T, a.T))
+
+                c = np.arange(4, dtype=dtype)
+                np.einsum("ji,j", a.T, b.T, out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c,
+                             np.dot(b.T.astype('f8'),
+                                    a.T.astype('f8')).astype(dtype))
+                c[...] = 0
+                np.einsum(a.T, [1, 0], b.T, [1], out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c,
+                             np.dot(b.T.astype('f8'),
+                                    a.T.astype('f8')).astype(dtype))
+
+            # matmat(a,b) / a.dot(b) where a is matrix, b is matrix
+            for n in range(1, 17):
+                if n < 8 or dtype != 'f2':
+                    a = np.arange(4 * n, dtype=dtype).reshape(4, n)
+                    b = np.arange(n * 6, dtype=dtype).reshape(n, 6)
+                    assert_equal(np.einsum("ij,jk", a, b, optimize=do_opt),
+                                 np.dot(a, b))
+                    assert_equal(np.einsum(a, [0, 1], b, [1, 2], optimize=do_opt),
+                                 np.dot(a, b))
+
+            for n in range(1, 17):
+                a = np.arange(4 * n, dtype=dtype).reshape(4, n)
+                b = np.arange(n * 6, dtype=dtype).reshape(n, 6)
+                c = np.arange(24, dtype=dtype).reshape(4, 6)
+                np.einsum("ij,jk", a, b, out=c, dtype='f8', casting='unsafe',
+                          optimize=do_opt)
+                assert_equal(c,
+                             np.dot(a.astype('f8'),
+                                    b.astype('f8')).astype(dtype))
+                c[...] = 0
+                np.einsum(a, [0, 1], b, [1, 2], out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c,
+                             np.dot(a.astype('f8'),
+                                    b.astype('f8')).astype(dtype))
+
+            # matrix triple product (note this is not currently an efficient
+            # way to multiply 3 matrices)
+            a = np.arange(12, dtype=dtype).reshape(3, 4)
+            b = np.arange(20, dtype=dtype).reshape(4, 5)
+            c = np.arange(30, dtype=dtype).reshape(5, 6)
+            if dtype != 'f2':
+                assert_equal(np.einsum("ij,jk,kl", a, b, c, optimize=do_opt),
+                             a.dot(b).dot(c))
+                assert_equal(np.einsum(a, [0, 1], b, [1, 2], c, [2, 3],
+                                       optimize=do_opt), a.dot(b).dot(c))
+
+            d = np.arange(18, dtype=dtype).reshape(3, 6)
+            np.einsum("ij,jk,kl", a, b, c, out=d,
+                      dtype='f8', casting='unsafe', optimize=do_opt)
+            tgt = a.astype('f8').dot(b.astype('f8'))
+            tgt = tgt.dot(c.astype('f8')).astype(dtype)
+            assert_equal(d, tgt)
+
+            d[...] = 0
+            np.einsum(a, [0, 1], b, [1, 2], c, [2, 3], out=d,
+                      dtype='f8', casting='unsafe', optimize=do_opt)
+            tgt = a.astype('f8').dot(b.astype('f8'))
+            tgt = tgt.dot(c.astype('f8')).astype(dtype)
+            assert_equal(d, tgt)
+
+            # tensordot(a, b)
+            if np.dtype(dtype) != np.dtype('f2'):
+                a = np.arange(60, dtype=dtype).reshape(3, 4, 5)
+                b = np.arange(24, dtype=dtype).reshape(4, 3, 2)
+                assert_equal(np.einsum("ijk, jil -> kl", a, b),
+                             np.tensordot(a, b, axes=([1, 0], [0, 1])))
+                assert_equal(np.einsum(a, [0, 1, 2], b, [1, 0, 3], [2, 3]),
+                             np.tensordot(a, b, axes=([1, 0], [0, 1])))
+
+                c = np.arange(10, dtype=dtype).reshape(5, 2)
+                np.einsum("ijk,jil->kl", a, b, out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c, np.tensordot(a.astype('f8'), b.astype('f8'),
+                             axes=([1, 0], [0, 1])).astype(dtype))
+                c[...] = 0
+                np.einsum(a, [0, 1, 2], b, [1, 0, 3], [2, 3], out=c,
+                          dtype='f8', casting='unsafe', optimize=do_opt)
+                assert_equal(c, np.tensordot(a.astype('f8'), b.astype('f8'),
+                             axes=([1, 0], [0, 1])).astype(dtype))
+
+        # logical_and(logical_and(a!=0, b!=0), c!=0)
+        neg_val = -2 if dtype.kind != "u" else np.iinfo(dtype).max - 1
+        a = np.array([1,   3,   neg_val, 0,  12,  13,   0,   1], dtype=dtype)
+        b = np.array([0,   3.5, 0., neg_val,  0,   1,    3,   12], dtype=dtype)
+        c = np.array([True, True, False, True, True, False, True, True])
+
+        assert_equal(np.einsum("i,i,i->i", a, b, c,
+                     dtype='?', casting='unsafe', optimize=do_opt),
+                     np.logical_and(np.logical_and(a != 0, b != 0), c != 0))
+        assert_equal(np.einsum(a, [0], b, [0], c, [0], [0],
+                     dtype='?', casting='unsafe'),
+                     np.logical_and(np.logical_and(a != 0, b != 0), c != 0))
+
+        a = np.arange(9, dtype=dtype)
+        assert_equal(np.einsum(",i->", 3, a), 3 * np.sum(a))
+        assert_equal(np.einsum(3, [], a, [0], []), 3 * np.sum(a))
+        assert_equal(np.einsum("i,->", a, 3), 3 * np.sum(a))
+        assert_equal(np.einsum(a, [0], 3, [], []), 3 * np.sum(a))
+
+        # Various stride0, contiguous, and SSE aligned variants
+        for n in range(1, 25):
+            a = np.arange(n, dtype=dtype)
+            if np.dtype(dtype).itemsize > 1:
+                assert_equal(np.einsum("...,...", a, a, optimize=do_opt),
+                             np.multiply(a, a))
+                assert_equal(np.einsum("i,i", a, a, optimize=do_opt), np.dot(a, a))
+                assert_equal(np.einsum("i,->i", a, 2, optimize=do_opt), 2 * a)
+                assert_equal(np.einsum(",i->i", 2, a, optimize=do_opt), 2 * a)
+                assert_equal(np.einsum("i,->", a, 2, optimize=do_opt), 2 * np.sum(a))
+                assert_equal(np.einsum(",i->", 2, a, optimize=do_opt), 2 * np.sum(a))
+
+                assert_equal(np.einsum("...,...", a[1:], a[:-1], optimize=do_opt),
+                             np.multiply(a[1:], a[:-1]))
+                assert_equal(np.einsum("i,i", a[1:], a[:-1], optimize=do_opt),
+                             np.dot(a[1:], a[:-1]))
+                assert_equal(np.einsum("i,->i", a[1:], 2, optimize=do_opt), 2 * a[1:])
+                assert_equal(np.einsum(",i->i", 2, a[1:], optimize=do_opt), 2 * a[1:])
+                assert_equal(np.einsum("i,->", a[1:], 2, optimize=do_opt),
+                             2 * np.sum(a[1:]))
+                assert_equal(np.einsum(",i->", 2, a[1:], optimize=do_opt),
+                             2 * np.sum(a[1:]))
+
+        # An object array, summed as the data type
+        a = np.arange(9, dtype=object)
+
+        b = np.einsum("i->", a, dtype=dtype, casting='unsafe')
+        assert_equal(b, np.sum(a))
+        if hasattr(b, "dtype"):
+            # Can be a python object when dtype is object
+            assert_equal(b.dtype, np.dtype(dtype))
+
+        b = np.einsum(a, [0], [], dtype=dtype, casting='unsafe')
+        assert_equal(b, np.sum(a))
+        if hasattr(b, "dtype"):
+            # Can be a python object when dtype is object
+            assert_equal(b.dtype, np.dtype(dtype))
+
+        # A case which was failing (ticket #1885)
+        p = np.arange(2) + 1
+        q = np.arange(4).reshape(2, 2) + 3
+        r = np.arange(4).reshape(2, 2) + 7
+        assert_equal(np.einsum('z,mz,zm->', p, q, r), 253)
+
+        # singleton dimensions broadcast (gh-10343)
+        p = np.ones((10, 2))
+        q = np.ones((1, 2))
+        assert_array_equal(np.einsum('ij,ij->j', p, q, optimize=True),
+                           np.einsum('ij,ij->j', p, q, optimize=False))
+        assert_array_equal(np.einsum('ij,ij->j', p, q, optimize=True),
+                           [10.] * 2)
+
+        # a blas-compatible contraction broadcasting case which was failing
+        # for optimize=True (ticket #10930)
+        x = np.array([2., 3.])
+        y = np.array([4.])
+        assert_array_equal(np.einsum("i, i", x, y, optimize=False), 20.)
+        assert_array_equal(np.einsum("i, i", x, y, optimize=True), 20.)
+
+        # all-ones array was bypassing bug (ticket #10930)
+        p = np.ones((1, 5)) / 2
+        q = np.ones((5, 5)) / 2
+        for optimize in (True, False):
+            assert_array_equal(np.einsum("...ij,...jk->...ik", p, p,
+                                         optimize=optimize),
+                               np.einsum("...ij,...jk->...ik", p, q,
+                                         optimize=optimize))
+            assert_array_equal(np.einsum("...ij,...jk->...ik", p, q,
+                                         optimize=optimize),
+                               np.full((1, 5), 1.25))
+
+        # Cases which were failing (gh-10899)
+        x = np.eye(2, dtype=dtype)
+        y = np.ones(2, dtype=dtype)
+        assert_array_equal(np.einsum("ji,i->", x, y, optimize=optimize),
+                           [2.])  # contig_contig_outstride0_two
+        assert_array_equal(np.einsum("i,ij->", y, x, optimize=optimize),
+                           [2.])  # stride0_contig_outstride0_two
+        assert_array_equal(np.einsum("ij,i->", x, y, optimize=optimize),
+                           [2.])  # contig_stride0_outstride0_two
+
+    def test_einsum_sums_int8(self):
+        self.check_einsum_sums('i1')
+
+    def test_einsum_sums_uint8(self):
+        self.check_einsum_sums('u1')
+
+    def test_einsum_sums_int16(self):
+        self.check_einsum_sums('i2')
+
+    def test_einsum_sums_uint16(self):
+        self.check_einsum_sums('u2')
+
+    def test_einsum_sums_int32(self):
+        self.check_einsum_sums('i4')
+        self.check_einsum_sums('i4', True)
+
+    def test_einsum_sums_uint32(self):
+        self.check_einsum_sums('u4')
+        self.check_einsum_sums('u4', True)
+
+    def test_einsum_sums_int64(self):
+        self.check_einsum_sums('i8')
+
+    def test_einsum_sums_uint64(self):
+        self.check_einsum_sums('u8')
+
+    def test_einsum_sums_float16(self):
+        self.check_einsum_sums('f2')
+
+    def test_einsum_sums_float32(self):
+        self.check_einsum_sums('f4')
+
+    def test_einsum_sums_float64(self):
+        self.check_einsum_sums('f8')
+        self.check_einsum_sums('f8', True)
+
+    def test_einsum_sums_longdouble(self):
+        self.check_einsum_sums(np.longdouble)
+
+    def test_einsum_sums_cfloat64(self):
+        self.check_einsum_sums('c8')
+        self.check_einsum_sums('c8', True)
+
+    def test_einsum_sums_cfloat128(self):
+        self.check_einsum_sums('c16')
+
+    def test_einsum_sums_clongdouble(self):
+        self.check_einsum_sums(np.clongdouble)
+
+    def test_einsum_sums_object(self):
+        self.check_einsum_sums('object')
+        self.check_einsum_sums('object', True)
+
+    def test_einsum_misc(self):
+        # This call used to crash because of a bug in
+        # PyArray_AssignZero
+        a = np.ones((1, 2))
+        b = np.ones((2, 2, 1))
+        assert_equal(np.einsum('ij...,j...->i...', a, b), [[[2], [2]]])
+        assert_equal(np.einsum('ij...,j...->i...', a, b, optimize=True), [[[2], [2]]])
+
+        # Regression test for issue #10369 (test unicode inputs with Python 2)
+        assert_equal(np.einsum('ij...,j...->i...', a, b), [[[2], [2]]])
+        assert_equal(np.einsum('...i,...i', [1, 2, 3], [2, 3, 4]), 20)
+        assert_equal(np.einsum('...i,...i', [1, 2, 3], [2, 3, 4],
+                               optimize='greedy'), 20)
+
+        # The iterator had an issue with buffering this reduction
+        a = np.ones((5, 12, 4, 2, 3), np.int64)
+        b = np.ones((5, 12, 11), np.int64)
+        assert_equal(np.einsum('ijklm,ijn,ijn->', a, b, b),
+                     np.einsum('ijklm,ijn->', a, b))
+        assert_equal(np.einsum('ijklm,ijn,ijn->', a, b, b, optimize=True),
+                     np.einsum('ijklm,ijn->', a, b, optimize=True))
+
+        # Issue #2027, was a problem in the contiguous 3-argument
+        # inner loop implementation
+        a = np.arange(1, 3)
+        b = np.arange(1, 5).reshape(2, 2)
+        c = np.arange(1, 9).reshape(4, 2)
+        assert_equal(np.einsum('x,yx,zx->xzy', a, b, c),
+                     [[[1,  3], [3,  9], [5, 15], [7, 21]],
+                     [[8, 16], [16, 32], [24, 48], [32, 64]]])
+        assert_equal(np.einsum('x,yx,zx->xzy', a, b, c, optimize=True),
+                     [[[1,  3], [3,  9], [5, 15], [7, 21]],
+                     [[8, 16], [16, 32], [24, 48], [32, 64]]])
+
+        # Ensure explicitly setting out=None does not cause an error
+        # see issue gh-15776 and issue gh-15256
+        assert_equal(np.einsum('i,j', [1], [2], out=None), [[2]])
+
+    def test_object_loop(self):
+
+        class Mult:
+            def __mul__(self, other):
+                return 42
+
+        objMult = np.array([Mult()])
+        objNULL = np.ndarray(buffer=b'\0' * np.intp(0).itemsize, shape=1, dtype=object)
+
+        with pytest.raises(TypeError):
+            np.einsum("i,j", [1], objNULL)
+        with pytest.raises(TypeError):
+            np.einsum("i,j", objNULL, [1])
+        assert np.einsum("i,j", objMult, objMult) == 42
+
+    def test_subscript_range(self):
+        # Issue #7741, make sure that all letters of Latin alphabet (both uppercase & lowercase) can be used
+        # when creating a subscript from arrays
+        a = np.ones((2, 3))
+        b = np.ones((3, 4))
+        np.einsum(a, [0, 20], b, [20, 2], [0, 2], optimize=False)
+        np.einsum(a, [0, 27], b, [27, 2], [0, 2], optimize=False)
+        np.einsum(a, [0, 51], b, [51, 2], [0, 2], optimize=False)
+        assert_raises(ValueError, lambda: np.einsum(a, [0, 52], b, [52, 2], [0, 2], optimize=False))
+        assert_raises(ValueError, lambda: np.einsum(a, [-1, 5], b, [5, 2], [-1, 2], optimize=False))
+
+    def test_einsum_broadcast(self):
+        # Issue #2455 change in handling ellipsis
+        # remove the 'middle broadcast' error
+        # only use the 'RIGHT' iteration in prepare_op_axes
+        # adds auto broadcast on left where it belongs
+        # broadcast on right has to be explicit
+        # We need to test the optimized parsing as well
+
+        A = np.arange(2 * 3 * 4).reshape(2, 3, 4)
+        B = np.arange(3)
+        ref = np.einsum('ijk,j->ijk', A, B, optimize=False)
+        for opt in [True, False]:
+            assert_equal(np.einsum('ij...,j...->ij...', A, B, optimize=opt), ref)
+            assert_equal(np.einsum('ij...,...j->ij...', A, B, optimize=opt), ref)
+            assert_equal(np.einsum('ij...,j->ij...', A, B, optimize=opt), ref)  # used to raise error
+
+        A = np.arange(12).reshape((4, 3))
+        B = np.arange(6).reshape((3, 2))
+        ref = np.einsum('ik,kj->ij', A, B, optimize=False)
+        for opt in [True, False]:
+            assert_equal(np.einsum('ik...,k...->i...', A, B, optimize=opt), ref)
+            assert_equal(np.einsum('ik...,...kj->i...j', A, B, optimize=opt), ref)
+            assert_equal(np.einsum('...k,kj', A, B, optimize=opt), ref)  # used to raise error
+            assert_equal(np.einsum('ik,k...->i...', A, B, optimize=opt), ref)  # used to raise error
+
+        dims = [2, 3, 4, 5]
+        a = np.arange(np.prod(dims)).reshape(dims)
+        v = np.arange(dims[2])
+        ref = np.einsum('ijkl,k->ijl', a, v, optimize=False)
+        for opt in [True, False]:
+            assert_equal(np.einsum('ijkl,k', a, v, optimize=opt), ref)
+            assert_equal(np.einsum('...kl,k', a, v, optimize=opt), ref)  # used to raise error
+            assert_equal(np.einsum('...kl,k...', a, v, optimize=opt), ref)
+
+        J, K, M = 160, 160, 120
+        A = np.arange(J * K * M).reshape(1, 1, 1, J, K, M)
+        B = np.arange(J * K * M * 3).reshape(J, K, M, 3)
+        ref = np.einsum('...lmn,...lmno->...o', A, B, optimize=False)
+        for opt in [True, False]:
+            assert_equal(np.einsum('...lmn,lmno->...o', A, B,
+                                   optimize=opt), ref)  # used to raise error
+
+    def test_einsum_fixedstridebug(self):
+        # Issue #4485 obscure einsum bug
+        # This case revealed a bug in nditer where it reported a stride
+        # as 'fixed' (0) when it was in fact not fixed during processing
+        # (0 or 4). The reason for the bug was that the check for a fixed
+        # stride was using the information from the 2D inner loop reuse
+        # to restrict the iteration dimensions it had to validate to be
+        # the same, but that 2D inner loop reuse logic is only triggered
+        # during the buffer copying step, and hence it was invalid to
+        # rely on those values. The fix is to check all the dimensions
+        # of the stride in question, which in the test case reveals that
+        # the stride is not fixed.
+        #
+        # NOTE: This test is triggered by the fact that the default buffersize,
+        #       used by einsum, is 8192, and 3*2731 = 8193, is larger than that
+        #       and results in a mismatch between the buffering and the
+        #       striding for operand A.
+        A = np.arange(2 * 3).reshape(2, 3).astype(np.float32)
+        B = np.arange(2 * 3 * 2731).reshape(2, 3, 2731).astype(np.int16)
+        es = np.einsum('cl, cpx->lpx',  A,  B)
+        tp = np.tensordot(A,  B,  axes=(0,  0))
+        assert_equal(es,  tp)
+        # The following is the original test case from the bug report,
+        # made repeatable by changing random arrays to aranges.
+        A = np.arange(3 * 3).reshape(3, 3).astype(np.float64)
+        B = np.arange(3 * 3 * 64 * 64).reshape(3, 3, 64, 64).astype(np.float32)
+        es = np.einsum('cl, cpxy->lpxy',  A, B)
+        tp = np.tensordot(A, B,  axes=(0, 0))
+        assert_equal(es, tp)
+
+    def test_einsum_fixed_collapsingbug(self):
+        # Issue #5147.
+        # The bug only occurred when output argument of einssum was used.
+        x = np.random.normal(0, 1, (5, 5, 5, 5))
+        y1 = np.zeros((5, 5))
+        np.einsum('aabb->ab', x, out=y1)
+        idx = np.arange(5)
+        y2 = x[idx[:, None], idx[:, None], idx, idx]
+        assert_equal(y1, y2)
+
+    def test_einsum_failed_on_p9_and_s390x(self):
+        # Issues gh-14692 and gh-12689
+        # Bug with signed vs unsigned char errored on power9 and s390x Linux
+        tensor = np.random.random_sample((10, 10, 10, 10))
+        x = np.einsum('ijij->', tensor)
+        y = tensor.trace(axis1=0, axis2=2).trace()
+        assert_allclose(x, y)
+
+    def test_einsum_all_contig_non_contig_output(self):
+        # Issue gh-5907, tests that the all contiguous special case
+        # actually checks the contiguity of the output
+        x = np.ones((5, 5))
+        out = np.ones(10)[::2]
+        correct_base = np.ones(10)
+        correct_base[::2] = 5
+        # Always worked (inner iteration is done with 0-stride):
+        np.einsum('mi,mi,mi->m', x, x, x, out=out)
+        assert_array_equal(out.base, correct_base)
+        # Example 1:
+        out = np.ones(10)[::2]
+        np.einsum('im,im,im->m', x, x, x, out=out)
+        assert_array_equal(out.base, correct_base)
+        # Example 2, buffering causes x to be contiguous but
+        # special cases do not catch the operation before:
+        out = np.ones((2, 2, 2))[..., 0]
+        correct_base = np.ones((2, 2, 2))
+        correct_base[..., 0] = 2
+        x = np.ones((2, 2), np.float32)
+        np.einsum('ij,jk->ik', x, x, out=out)
+        assert_array_equal(out.base, correct_base)
+
+    @pytest.mark.parametrize("dtype",
+             np.typecodes["AllFloat"] + np.typecodes["AllInteger"])
+    def test_different_paths(self, dtype):
+        # Test originally added to cover broken float16 path: gh-20305
+        # Likely most are covered elsewhere, at least partially.
+        dtype = np.dtype(dtype)
+        # Simple test, designed to exercise most specialized code paths,
+        # note the +0.5 for floats.  This makes sure we use a float value
+        # where the results must be exact.
+        arr = (np.arange(7) + 0.5).astype(dtype)
+        scalar = np.array(2, dtype=dtype)
+
+        # contig -> scalar:
+        res = np.einsum('i->', arr)
+        assert res == arr.sum()
+        # contig, contig -> contig:
+        res = np.einsum('i,i->i', arr, arr)
+        assert_array_equal(res, arr * arr)
+        # noncontig, noncontig -> contig:
+        res = np.einsum('i,i->i', arr.repeat(2)[::2], arr.repeat(2)[::2])
+        assert_array_equal(res, arr * arr)
+        # contig + contig -> scalar
+        assert np.einsum('i,i->', arr, arr) == (arr * arr).sum()
+        # contig + scalar -> contig (with out)
+        out = np.ones(7, dtype=dtype)
+        res = np.einsum('i,->i', arr, dtype.type(2), out=out)
+        assert_array_equal(res, arr * dtype.type(2))
+        # scalar + contig -> contig (with out)
+        res = np.einsum(',i->i', scalar, arr)
+        assert_array_equal(res, arr * dtype.type(2))
+        # scalar + contig -> scalar
+        res = np.einsum(',i->', scalar, arr)
+        # Use einsum to compare to not have difference due to sum round-offs:
+        assert res == np.einsum('i->', scalar * arr)
+        # contig + scalar -> scalar
+        res = np.einsum('i,->', arr, scalar)
+        # Use einsum to compare to not have difference due to sum round-offs:
+        assert res == np.einsum('i->', scalar * arr)
+        # contig + contig + contig -> scalar
+        arr = np.array([0.5, 0.5, 0.25, 4.5, 3.], dtype=dtype)
+        res = np.einsum('i,i,i->', arr, arr, arr)
+        assert_array_equal(res, (arr * arr * arr).sum())
+        # four arrays:
+        res = np.einsum('i,i,i,i->', arr, arr, arr, arr)
+        assert_array_equal(res, (arr * arr * arr * arr).sum())
+
+    def test_small_boolean_arrays(self):
+        # See gh-5946.
+        # Use array of True embedded in False.
+        a = np.zeros((16, 1, 1), dtype=np.bool)[:2]
+        a[...] = True
+        out = np.zeros((16, 1, 1), dtype=np.bool)[:2]
+        tgt = np.ones((2, 1, 1), dtype=np.bool)
+        res = np.einsum('...ij,...jk->...ik', a, a, out=out)
+        assert_equal(res, tgt)
+
+    def test_out_is_res(self):
+        a = np.arange(9).reshape(3, 3)
+        res = np.einsum('...ij,...jk->...ik', a, a, out=a)
+        assert res is a
+
+    def optimize_compare(self, subscripts, operands=None):
+        # Tests all paths of the optimization function against
+        # conventional einsum
+        if operands is None:
+            args = [subscripts]
+            terms = subscripts.split('->')[0].split(',')
+            for term in terms:
+                dims = [global_size_dict[x] for x in term]
+                args.append(np.random.rand(*dims))
+        else:
+            args = [subscripts] + operands
+
+        noopt = np.einsum(*args, optimize=False)
+        opt = np.einsum(*args, optimize='greedy')
+        assert_almost_equal(opt, noopt)
+        opt = np.einsum(*args, optimize='optimal')
+        assert_almost_equal(opt, noopt)
+
+    def test_hadamard_like_products(self):
+        # Hadamard outer products
+        self.optimize_compare('a,ab,abc->abc')
+        self.optimize_compare('a,b,ab->ab')
+
+    def test_index_transformations(self):
+        # Simple index transformation cases
+        self.optimize_compare('ea,fb,gc,hd,abcd->efgh')
+        self.optimize_compare('ea,fb,abcd,gc,hd->efgh')
+        self.optimize_compare('abcd,ea,fb,gc,hd->efgh')
+
+    def test_complex(self):
+        # Long test cases
+        self.optimize_compare('acdf,jbje,gihb,hfac,gfac,gifabc,hfac')
+        self.optimize_compare('acdf,jbje,gihb,hfac,gfac,gifabc,hfac')
+        self.optimize_compare('cd,bdhe,aidb,hgca,gc,hgibcd,hgac')
+        self.optimize_compare('abhe,hidj,jgba,hiab,gab')
+        self.optimize_compare('bde,cdh,agdb,hica,ibd,hgicd,hiac')
+        self.optimize_compare('chd,bde,agbc,hiad,hgc,hgi,hiad')
+        self.optimize_compare('chd,bde,agbc,hiad,bdi,cgh,agdb')
+        self.optimize_compare('bdhe,acad,hiab,agac,hibd')
+
+    def test_collapse(self):
+        # Inner products
+        self.optimize_compare('ab,ab,c->')
+        self.optimize_compare('ab,ab,c->c')
+        self.optimize_compare('ab,ab,cd,cd->')
+        self.optimize_compare('ab,ab,cd,cd->ac')
+        self.optimize_compare('ab,ab,cd,cd->cd')
+        self.optimize_compare('ab,ab,cd,cd,ef,ef->')
+
+    def test_expand(self):
+        # Outer products
+        self.optimize_compare('ab,cd,ef->abcdef')
+        self.optimize_compare('ab,cd,ef->acdf')
+        self.optimize_compare('ab,cd,de->abcde')
+        self.optimize_compare('ab,cd,de->be')
+        self.optimize_compare('ab,bcd,cd->abcd')
+        self.optimize_compare('ab,bcd,cd->abd')
+
+    def test_edge_cases(self):
+        # Difficult edge cases for optimization
+        self.optimize_compare('eb,cb,fb->cef')
+        self.optimize_compare('dd,fb,be,cdb->cef')
+        self.optimize_compare('bca,cdb,dbf,afc->')
+        self.optimize_compare('dcc,fce,ea,dbf->ab')
+        self.optimize_compare('fdf,cdd,ccd,afe->ae')
+        self.optimize_compare('abcd,ad')
+        self.optimize_compare('ed,fcd,ff,bcf->be')
+        self.optimize_compare('baa,dcf,af,cde->be')
+        self.optimize_compare('bd,db,eac->ace')
+        self.optimize_compare('fff,fae,bef,def->abd')
+        self.optimize_compare('efc,dbc,acf,fd->abe')
+        self.optimize_compare('ba,ac,da->bcd')
+
+    def test_inner_product(self):
+        # Inner products
+        self.optimize_compare('ab,ab')
+        self.optimize_compare('ab,ba')
+        self.optimize_compare('abc,abc')
+        self.optimize_compare('abc,bac')
+        self.optimize_compare('abc,cba')
+
+    def test_random_cases(self):
+        # Randomly built test cases
+        self.optimize_compare('aab,fa,df,ecc->bde')
+        self.optimize_compare('ecb,fef,bad,ed->ac')
+        self.optimize_compare('bcf,bbb,fbf,fc->')
+        self.optimize_compare('bb,ff,be->e')
+        self.optimize_compare('bcb,bb,fc,fff->')
+        self.optimize_compare('fbb,dfd,fc,fc->')
+        self.optimize_compare('afd,ba,cc,dc->bf')
+        self.optimize_compare('adb,bc,fa,cfc->d')
+        self.optimize_compare('bbd,bda,fc,db->acf')
+        self.optimize_compare('dba,ead,cad->bce')
+        self.optimize_compare('aef,fbc,dca->bde')
+
+    def test_combined_views_mapping(self):
+        # gh-10792
+        a = np.arange(9).reshape(1, 1, 3, 1, 3)
+        b = np.einsum('bbcdc->d', a)
+        assert_equal(b, [12])
+
+    def test_broadcasting_dot_cases(self):
+        # Ensures broadcasting cases are not mistaken for GEMM
+
+        a = np.random.rand(1, 5, 4)
+        b = np.random.rand(4, 6)
+        c = np.random.rand(5, 6)
+        d = np.random.rand(10)
+
+        self.optimize_compare('ijk,kl,jl', operands=[a, b, c])
+        self.optimize_compare('ijk,kl,jl,i->i', operands=[a, b, c, d])
+
+        e = np.random.rand(1, 1, 5, 4)
+        f = np.random.rand(7, 7)
+        self.optimize_compare('abjk,kl,jl', operands=[e, b, c])
+        self.optimize_compare('abjk,kl,jl,ab->ab', operands=[e, b, c, f])
+
+        # Edge case found in gh-11308
+        g = np.arange(64).reshape(2, 4, 8)
+        self.optimize_compare('obk,ijk->ioj', operands=[g, g])
+
+    def test_output_order(self):
+        # Ensure output order is respected for optimize cases, the below
+        # contraction should yield a reshaped tensor view
+        # gh-16415
+
+        a = np.ones((2, 3, 5), order='F')
+        b = np.ones((4, 3), order='F')
+
+        for opt in [True, False]:
+            tmp = np.einsum('...ft,mf->...mt', a, b, order='a', optimize=opt)
+            assert_(tmp.flags.f_contiguous)
+
+            tmp = np.einsum('...ft,mf->...mt', a, b, order='f', optimize=opt)
+            assert_(tmp.flags.f_contiguous)
+
+            tmp = np.einsum('...ft,mf->...mt', a, b, order='c', optimize=opt)
+            assert_(tmp.flags.c_contiguous)
+
+            tmp = np.einsum('...ft,mf->...mt', a, b, order='k', optimize=opt)
+            assert_(tmp.flags.c_contiguous is False)
+            assert_(tmp.flags.f_contiguous is False)
+
+            tmp = np.einsum('...ft,mf->...mt', a, b, optimize=opt)
+            assert_(tmp.flags.c_contiguous is False)
+            assert_(tmp.flags.f_contiguous is False)
+
+        c = np.ones((4, 3), order='C')
+        for opt in [True, False]:
+            tmp = np.einsum('...ft,mf->...mt', a, c, order='a', optimize=opt)
+            assert_(tmp.flags.c_contiguous)
+
+        d = np.ones((2, 3, 5), order='C')
+        for opt in [True, False]:
+            tmp = np.einsum('...ft,mf->...mt', d, c, order='a', optimize=opt)
+            assert_(tmp.flags.c_contiguous)
+
+    def test_singleton_broadcasting(self):
+        eq = "ijp,ipq,ikq->ijk"
+        shapes = ((3, 1, 1), (3, 1, 3), (1, 3, 3))
+        arrays = [np.random.rand(*shape) for shape in shapes]
+        self.optimize_compare(eq, operands=arrays)
+
+        eq = "jhcabhijaci,dfijejgh->fgje"
+        shapes = (
+            (1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1),
+            (3, 1, 3, 1, 1, 1, 1, 2),
+        )
+        arrays = [np.random.rand(*shape) for shape in shapes]
+        self.optimize_compare(eq, operands=arrays)
+
+        eq = "baegffahgc,hdggeff->dhg"
+        shapes = ((2, 1, 4, 1, 1, 1, 1, 2, 1, 1), (1, 1, 1, 1, 4, 1, 1))
+        arrays = [np.random.rand(*shape) for shape in shapes]
+        self.optimize_compare(eq, operands=arrays)
+
+        eq = "cehgbaifff,fhhdegih->cdghbi"
+        shapes = ((1, 1, 1, 1, 1, 1, 1, 1, 1, 1), (2, 1, 1, 2, 4, 1, 1, 1))
+        arrays = [np.random.rand(*shape) for shape in shapes]
+        self.optimize_compare(eq, operands=arrays)
+
+        eq = "gah,cdbcghefg->ef"
+        shapes = ((2, 3, 1), (1, 3, 1, 1, 1, 2, 1, 4, 1))
+        arrays = [np.random.rand(*shape) for shape in shapes]
+        self.optimize_compare(eq, operands=arrays)
+
+        eq = "cacc,bcb->"
+        shapes = ((1, 1, 1, 1), (1, 4, 1))
+        arrays = [np.random.rand(*shape) for shape in shapes]
+        self.optimize_compare(eq, operands=arrays)
+
+
+class TestEinsumPath:
+    def build_operands(self, string, size_dict=global_size_dict):
+
+        # Builds views based off initial operands
+        operands = [string]
+        terms = string.split('->')[0].split(',')
+        for term in terms:
+            dims = [size_dict[x] for x in term]
+            operands.append(np.random.rand(*dims))
+
+        return operands
+
+    def assert_path_equal(self, comp, benchmark):
+        # Checks if list of tuples are equivalent
+        ret = (len(comp) == len(benchmark))
+        assert_(ret)
+        for pos in range(len(comp) - 1):
+            ret &= isinstance(comp[pos + 1], tuple)
+            ret &= (comp[pos + 1] == benchmark[pos + 1])
+        assert_(ret)
+
+    def test_memory_contraints(self):
+        # Ensure memory constraints are satisfied
+
+        outer_test = self.build_operands('a,b,c->abc')
+
+        path, path_str = np.einsum_path(*outer_test, optimize=('greedy', 0))
+        self.assert_path_equal(path, ['einsum_path', (0, 1, 2)])
+
+        path, path_str = np.einsum_path(*outer_test, optimize=('optimal', 0))
+        self.assert_path_equal(path, ['einsum_path', (0, 1, 2)])
+
+        long_test = self.build_operands('acdf,jbje,gihb,hfac')
+        path, path_str = np.einsum_path(*long_test, optimize=('greedy', 0))
+        self.assert_path_equal(path, ['einsum_path', (0, 1, 2, 3)])
+
+        path, path_str = np.einsum_path(*long_test, optimize=('optimal', 0))
+        self.assert_path_equal(path, ['einsum_path', (0, 1, 2, 3)])
+
+    def test_long_paths(self):
+        # Long complex cases
+
+        # Long test 1
+        long_test1 = self.build_operands('acdf,jbje,gihb,hfac,gfac,gifabc,hfac')
+        path, path_str = np.einsum_path(*long_test1, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path',
+                                      (3, 6), (3, 4), (2, 4), (2, 3), (0, 2), (0, 1)])
+
+        path, path_str = np.einsum_path(*long_test1, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path',
+                                      (3, 6), (3, 4), (2, 4), (2, 3), (0, 2), (0, 1)])
+
+        # Long test 2
+        long_test2 = self.build_operands('chd,bde,agbc,hiad,bdi,cgh,agdb')
+        path, path_str = np.einsum_path(*long_test2, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path',
+                                      (3, 4), (0, 3), (3, 4), (1, 3), (1, 2), (0, 1)])
+
+        path, path_str = np.einsum_path(*long_test2, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path',
+                                      (0, 5), (1, 4), (3, 4), (1, 3), (1, 2), (0, 1)])
+
+    def test_edge_paths(self):
+        # Difficult edge cases
+
+        # Edge test1
+        edge_test1 = self.build_operands('eb,cb,fb->cef')
+        path, path_str = np.einsum_path(*edge_test1, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path', (0, 2), (0, 1)])
+
+        path, path_str = np.einsum_path(*edge_test1, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path', (0, 2), (0, 1)])
+
+        # Edge test2
+        edge_test2 = self.build_operands('dd,fb,be,cdb->cef')
+        path, path_str = np.einsum_path(*edge_test2, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path', (0, 3), (0, 1), (0, 1)])
+
+        path, path_str = np.einsum_path(*edge_test2, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path', (0, 3), (0, 1), (0, 1)])
+
+        # Edge test3
+        edge_test3 = self.build_operands('bca,cdb,dbf,afc->')
+        path, path_str = np.einsum_path(*edge_test3, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 2), (0, 1)])
+
+        path, path_str = np.einsum_path(*edge_test3, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 2), (0, 1)])
+
+        # Edge test4
+        edge_test4 = self.build_operands('dcc,fce,ea,dbf->ab')
+        path, path_str = np.einsum_path(*edge_test4, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 1), (0, 1)])
+
+        path, path_str = np.einsum_path(*edge_test4, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 2), (0, 1)])
+
+        # Edge test5
+        edge_test4 = self.build_operands('a,ac,ab,ad,cd,bd,bc->',
+                                         size_dict={"a": 20, "b": 20, "c": 20, "d": 20})
+        path, path_str = np.einsum_path(*edge_test4, optimize='greedy')
+        self.assert_path_equal(path, ['einsum_path', (0, 1), (0, 1, 2, 3, 4, 5)])
+
+        path, path_str = np.einsum_path(*edge_test4, optimize='optimal')
+        self.assert_path_equal(path, ['einsum_path', (0, 1), (0, 1, 2, 3, 4, 5)])
+
+    def test_path_type_input(self):
+        # Test explicit path handling
+        path_test = self.build_operands('dcc,fce,ea,dbf->ab')
+
+        path, path_str = np.einsum_path(*path_test, optimize=False)
+        self.assert_path_equal(path, ['einsum_path', (0, 1, 2, 3)])
+
+        path, path_str = np.einsum_path(*path_test, optimize=True)
+        self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 1), (0, 1)])
+
+        exp_path = ['einsum_path', (0, 2), (0, 2), (0, 1)]
+        path, path_str = np.einsum_path(*path_test, optimize=exp_path)
+        self.assert_path_equal(path, exp_path)
+
+        # Double check einsum works on the input path
+        noopt = np.einsum(*path_test, optimize=False)
+        opt = np.einsum(*path_test, optimize=exp_path)
+        assert_almost_equal(noopt, opt)
+
+    def test_path_type_input_internal_trace(self):
+        # gh-20962
+        path_test = self.build_operands('cab,cdd->ab')
+        exp_path = ['einsum_path', (1,), (0, 1)]
+
+        path, path_str = np.einsum_path(*path_test, optimize=exp_path)
+        self.assert_path_equal(path, exp_path)
+
+        # Double check einsum works on the input path
+        noopt = np.einsum(*path_test, optimize=False)
+        opt = np.einsum(*path_test, optimize=exp_path)
+        assert_almost_equal(noopt, opt)
+
+    def test_path_type_input_invalid(self):
+        path_test = self.build_operands('ab,bc,cd,de->ae')
+        exp_path = ['einsum_path', (2, 3), (0, 1)]
+        assert_raises(RuntimeError, np.einsum, *path_test, optimize=exp_path)
+        assert_raises(
+            RuntimeError, np.einsum_path, *path_test, optimize=exp_path)
+
+        path_test = self.build_operands('a,a,a->a')
+        exp_path = ['einsum_path', (1,), (0, 1)]
+        assert_raises(RuntimeError, np.einsum, *path_test, optimize=exp_path)
+        assert_raises(
+            RuntimeError, np.einsum_path, *path_test, optimize=exp_path)
+
+    def test_spaces(self):
+        # gh-10794
+        arr = np.array([[1]])
+        for sp in itertools.product(['', ' '], repeat=4):
+            # no error for any spacing
+            np.einsum('{}...a{}->{}...a{}'.format(*sp), arr)
+
+def test_overlap():
+    a = np.arange(9, dtype=int).reshape(3, 3)
+    b = np.arange(9, dtype=int).reshape(3, 3)
+    d = np.dot(a, b)
+    # sanity check
+    c = np.einsum('ij,jk->ik', a, b)
+    assert_equal(c, d)
+    # gh-10080, out overlaps one of the operands
+    c = np.einsum('ij,jk->ik', a, b, out=b)
+    assert_equal(c, d)
+
+def test_einsum_chunking_precision():
+    """Most einsum operations are reductions and until NumPy 2.3 reductions
+    never (or almost never?) used the `GROWINNER` mechanism to increase the
+    inner loop size when no buffers are needed.
+    Because einsum reductions work roughly:
+
+        def inner(*inputs, out):
+            accumulate = 0
+            for vals in zip(*inputs):
+                accumulate += prod(vals)
+            out[0] += accumulate
+
+    Calling the inner-loop more often actually improves accuracy slightly
+    (same effect as pairwise summation but much less).
+    Without adding pairwise summation to the inner-loop it seems best to just
+    not use GROWINNER, a quick tests suggest that is maybe 1% slowdown for
+    the simplest `einsum("i,i->i", x, x)` case.
+
+    (It is not clear that we should guarantee precision to this extend.)
+    """
+    num = 1_000_000
+    value = 1. + np.finfo(np.float64).eps * 8196
+    res = np.einsum("i->", np.broadcast_to(np.array(value), num)) / num
+
+    # At with GROWINNER 11 decimals succeed (larger will be less)
+    assert_almost_equal(res, value, decimal=15)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_errstate.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_errstate.py
new file mode 100644
index 0000000000000000000000000000000000000000..65fb23fdcbda78b2a01c362e3d7a2319b84deca6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_errstate.py
@@ -0,0 +1,131 @@
+import sysconfig
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_WASM, assert_raises
+
+# The floating point emulation on ARM EABI systems lacking a hardware FPU is
+# known to be buggy. This is an attempt to identify these hosts. It may not
+# catch all possible cases, but it catches the known cases of gh-413 and
+# gh-15562.
+hosttype = sysconfig.get_config_var('HOST_GNU_TYPE')
+arm_softfloat = False if hosttype is None else hosttype.endswith('gnueabi')
+
+class TestErrstate:
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.skipif(arm_softfloat,
+                        reason='platform/cpu issue with FPU (gh-413,-15562)')
+    def test_invalid(self):
+        with np.errstate(all='raise', under='ignore'):
+            a = -np.arange(3)
+            # This should work
+            with np.errstate(invalid='ignore'):
+                np.sqrt(a)
+            # While this should fail!
+            with assert_raises(FloatingPointError):
+                np.sqrt(a)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.skipif(arm_softfloat,
+                        reason='platform/cpu issue with FPU (gh-15562)')
+    def test_divide(self):
+        with np.errstate(all='raise', under='ignore'):
+            a = -np.arange(3)
+            # This should work
+            with np.errstate(divide='ignore'):
+                a // 0
+            # While this should fail!
+            with assert_raises(FloatingPointError):
+                a // 0
+            # As should this, see gh-15562
+            with assert_raises(FloatingPointError):
+                a // a
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.skipif(arm_softfloat,
+                        reason='platform/cpu issue with FPU (gh-15562)')
+    def test_errcall(self):
+        count = 0
+
+        def foo(*args):
+            nonlocal count
+            count += 1
+
+        olderrcall = np.geterrcall()
+        with np.errstate(call=foo):
+            assert np.geterrcall() is foo
+            with np.errstate(call=None):
+                assert np.geterrcall() is None
+        assert np.geterrcall() is olderrcall
+        assert count == 0
+
+        with np.errstate(call=foo, invalid="call"):
+            np.array(np.inf) - np.array(np.inf)
+
+        assert count == 1
+
+    def test_errstate_decorator(self):
+        @np.errstate(all='ignore')
+        def foo():
+            a = -np.arange(3)
+            a // 0
+
+        foo()
+
+    def test_errstate_enter_once(self):
+        errstate = np.errstate(invalid="warn")
+        with errstate:
+            pass
+
+        # The errstate context cannot be entered twice as that would not be
+        # thread-safe
+        with pytest.raises(TypeError,
+                match="Cannot enter `np.errstate` twice"):
+            with errstate:
+                pass
+
+    @pytest.mark.skipif(IS_WASM, reason="wasm doesn't support asyncio")
+    def test_asyncio_safe(self):
+        # asyncio may not always work, let's assume its fine if missing
+        # Pyodide/wasm doesn't support it.  If this test makes problems,
+        # it should just be skipped liberally (or run differently).
+        asyncio = pytest.importorskip("asyncio")
+
+        @np.errstate(invalid="ignore")
+        def decorated():
+            # Decorated non-async function (it is not safe to decorate an
+            # async one)
+            assert np.geterr()["invalid"] == "ignore"
+
+        async def func1():
+            decorated()
+            await asyncio.sleep(0.1)
+            decorated()
+
+        async def func2():
+            with np.errstate(invalid="raise"):
+                assert np.geterr()["invalid"] == "raise"
+                await asyncio.sleep(0.125)
+                assert np.geterr()["invalid"] == "raise"
+
+        # for good sport, a third one with yet another state:
+        async def func3():
+            with np.errstate(invalid="print"):
+                assert np.geterr()["invalid"] == "print"
+                await asyncio.sleep(0.11)
+                assert np.geterr()["invalid"] == "print"
+
+        async def main():
+            # simply run all three function multiple times:
+            await asyncio.gather(
+                    func1(), func2(), func3(), func1(), func2(), func3(),
+                    func1(), func2(), func3(), func1(), func2(), func3())
+
+        loop = asyncio.new_event_loop()
+        with np.errstate(invalid="warn"):
+            asyncio.run(main())
+            assert np.geterr()["invalid"] == "warn"
+
+        assert np.geterr()["invalid"] == "warn"  # the default
+        loop.close()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_extint128.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_extint128.py
new file mode 100644
index 0000000000000000000000000000000000000000..a63475951abb4e38739e11b73c33af6512eae08d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_extint128.py
@@ -0,0 +1,217 @@
+import contextlib
+import itertools
+import operator
+
+import pytest
+
+import numpy as np
+import numpy._core._multiarray_tests as mt
+from numpy.testing import assert_equal, assert_raises
+
+INT64_MAX = np.iinfo(np.int64).max
+INT64_MIN = np.iinfo(np.int64).min
+INT64_MID = 2**32
+
+# int128 is not two's complement, the sign bit is separate
+INT128_MAX = 2**128 - 1
+INT128_MIN = -INT128_MAX
+INT128_MID = 2**64
+
+INT64_VALUES = (
+    [INT64_MIN + j for j in range(20)] +
+    [INT64_MAX - j for j in range(20)] +
+    [INT64_MID + j for j in range(-20, 20)] +
+    [2 * INT64_MID + j for j in range(-20, 20)] +
+    [INT64_MID // 2 + j for j in range(-20, 20)] +
+    list(range(-70, 70))
+)
+
+INT128_VALUES = (
+    [INT128_MIN + j for j in range(20)] +
+    [INT128_MAX - j for j in range(20)] +
+    [INT128_MID + j for j in range(-20, 20)] +
+    [2 * INT128_MID + j for j in range(-20, 20)] +
+    [INT128_MID // 2 + j for j in range(-20, 20)] +
+    list(range(-70, 70)) +
+    [False]  # negative zero
+)
+
+INT64_POS_VALUES = [x for x in INT64_VALUES if x > 0]
+
+
+@contextlib.contextmanager
+def exc_iter(*args):
+    """
+    Iterate over Cartesian product of *args, and if an exception is raised,
+    add information of the current iterate.
+    """
+
+    value = [None]
+
+    def iterate():
+        for v in itertools.product(*args):
+            value[0] = v
+            yield v
+
+    try:
+        yield iterate()
+    except Exception:
+        import traceback
+        msg = f"At: {repr(value[0])!r}\n{traceback.format_exc()}"
+        raise AssertionError(msg)
+
+
+def test_safe_binop():
+    # Test checked arithmetic routines
+
+    ops = [
+        (operator.add, 1),
+        (operator.sub, 2),
+        (operator.mul, 3)
+    ]
+
+    with exc_iter(ops, INT64_VALUES, INT64_VALUES) as it:
+        for xop, a, b in it:
+            pyop, op = xop
+            c = pyop(a, b)
+
+            if not (INT64_MIN <= c <= INT64_MAX):
+                assert_raises(OverflowError, mt.extint_safe_binop, a, b, op)
+            else:
+                d = mt.extint_safe_binop(a, b, op)
+                if c != d:
+                    # assert_equal is slow
+                    assert_equal(d, c)
+
+
+def test_to_128():
+    with exc_iter(INT64_VALUES) as it:
+        for a, in it:
+            b = mt.extint_to_128(a)
+            if a != b:
+                assert_equal(b, a)
+
+
+def test_to_64():
+    with exc_iter(INT128_VALUES) as it:
+        for a, in it:
+            if not (INT64_MIN <= a <= INT64_MAX):
+                assert_raises(OverflowError, mt.extint_to_64, a)
+            else:
+                b = mt.extint_to_64(a)
+                if a != b:
+                    assert_equal(b, a)
+
+
+def test_mul_64_64():
+    with exc_iter(INT64_VALUES, INT64_VALUES) as it:
+        for a, b in it:
+            c = a * b
+            d = mt.extint_mul_64_64(a, b)
+            if c != d:
+                assert_equal(d, c)
+
+
+def test_add_128():
+    with exc_iter(INT128_VALUES, INT128_VALUES) as it:
+        for a, b in it:
+            c = a + b
+            if not (INT128_MIN <= c <= INT128_MAX):
+                assert_raises(OverflowError, mt.extint_add_128, a, b)
+            else:
+                d = mt.extint_add_128(a, b)
+                if c != d:
+                    assert_equal(d, c)
+
+
+def test_sub_128():
+    with exc_iter(INT128_VALUES, INT128_VALUES) as it:
+        for a, b in it:
+            c = a - b
+            if not (INT128_MIN <= c <= INT128_MAX):
+                assert_raises(OverflowError, mt.extint_sub_128, a, b)
+            else:
+                d = mt.extint_sub_128(a, b)
+                if c != d:
+                    assert_equal(d, c)
+
+
+def test_neg_128():
+    with exc_iter(INT128_VALUES) as it:
+        for a, in it:
+            b = -a
+            c = mt.extint_neg_128(a)
+            if b != c:
+                assert_equal(c, b)
+
+
+def test_shl_128():
+    with exc_iter(INT128_VALUES) as it:
+        for a, in it:
+            if a < 0:
+                b = -(((-a) << 1) & (2**128 - 1))
+            else:
+                b = (a << 1) & (2**128 - 1)
+            c = mt.extint_shl_128(a)
+            if b != c:
+                assert_equal(c, b)
+
+
+def test_shr_128():
+    with exc_iter(INT128_VALUES) as it:
+        for a, in it:
+            if a < 0:
+                b = -((-a) >> 1)
+            else:
+                b = a >> 1
+            c = mt.extint_shr_128(a)
+            if b != c:
+                assert_equal(c, b)
+
+
+def test_gt_128():
+    with exc_iter(INT128_VALUES, INT128_VALUES) as it:
+        for a, b in it:
+            c = a > b
+            d = mt.extint_gt_128(a, b)
+            if c != d:
+                assert_equal(d, c)
+
+
+@pytest.mark.slow
+def test_divmod_128_64():
+    with exc_iter(INT128_VALUES, INT64_POS_VALUES) as it:
+        for a, b in it:
+            if a >= 0:
+                c, cr = divmod(a, b)
+            else:
+                c, cr = divmod(-a, b)
+                c = -c
+                cr = -cr
+
+            d, dr = mt.extint_divmod_128_64(a, b)
+
+            if c != d or d != dr or b * d + dr != a:
+                assert_equal(d, c)
+                assert_equal(dr, cr)
+                assert_equal(b * d + dr, a)
+
+
+def test_floordiv_128_64():
+    with exc_iter(INT128_VALUES, INT64_POS_VALUES) as it:
+        for a, b in it:
+            c = a // b
+            d = mt.extint_floordiv_128_64(a, b)
+
+            if c != d:
+                assert_equal(d, c)
+
+
+def test_ceildiv_128_64():
+    with exc_iter(INT128_VALUES, INT64_POS_VALUES) as it:
+        for a, b in it:
+            c = (a + b - 1) // b
+            d = mt.extint_ceildiv_128_64(a, b)
+
+            if c != d:
+                assert_equal(d, c)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_finfo.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_finfo.py
new file mode 100644
index 0000000000000000000000000000000000000000..6cf6ad02d1f7b3a8c2bcd19e79100b9bc9181985
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_finfo.py
@@ -0,0 +1,86 @@
+import pytest
+
+import numpy as np
+from numpy import exp2, log10
+from numpy._core import numerictypes as ntypes
+
+
+class MachArLike:
+    """Minimal class to simulate machine arithmetic parameters."""
+    def __init__(self, dtype, machep, negep, minexp, maxexp, nmant, iexp):
+        self.dtype = dtype
+        self.machep = machep
+        self.negep = negep
+        self.minexp = minexp
+        self.maxexp = maxexp
+        self.nmant = nmant
+        self.iexp = iexp
+        self.eps = exp2(dtype(-nmant))
+        self.epsneg = exp2(dtype(negep))
+        self.precision = int(-log10(self.eps))
+        self.resolution = dtype(10) ** (-self.precision)
+
+
+@pytest.fixture
+def float16_ma():
+    """Machine arithmetic parameters for float16."""
+    f16 = ntypes.float16
+    return MachArLike(f16,
+                      machep=-10,
+                      negep=-11,
+                      minexp=-14,
+                      maxexp=16,
+                      nmant=10,
+                      iexp=5)
+
+
+@pytest.fixture
+def float32_ma():
+    """Machine arithmetic parameters for float32."""
+    f32 = ntypes.float32
+    return MachArLike(f32,
+                      machep=-23,
+                      negep=-24,
+                      minexp=-126,
+                      maxexp=128,
+                      nmant=23,
+                      iexp=8)
+
+
+@pytest.fixture
+def float64_ma():
+    """Machine arithmetic parameters for float64."""
+    f64 = ntypes.float64
+    return MachArLike(f64,
+                      machep=-52,
+                      negep=-53,
+                      minexp=-1022,
+                      maxexp=1024,
+                      nmant=52,
+                      iexp=11)
+
+
+@pytest.mark.parametrize("dtype,ma_fixture", [
+    (np.half, "float16_ma"),
+    (np.float32, "float32_ma"),
+    (np.float64, "float64_ma"),
+])
+@pytest.mark.parametrize("prop", [
+    'machep', 'negep', 'minexp', 'maxexp', 'nmant', 'iexp',
+    'eps', 'epsneg', 'precision', 'resolution'
+])
+@pytest.mark.thread_unsafe(
+    reason="complex fixture setup is thread-unsafe (pytest-dev/pytest#13768.)"
+)
+def test_finfo_properties(dtype, ma_fixture, prop, request):
+    """Test that finfo properties match expected machine arithmetic values."""
+    ma = request.getfixturevalue(ma_fixture)
+    finfo = np.finfo(dtype)
+
+    actual = getattr(finfo, prop)
+    expected = getattr(ma, prop)
+
+    assert actual == expected, (
+        f"finfo({dtype}) property '{prop}' mismatch: "
+        f"expected {expected}, got {actual}"
+    )
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_function_base.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_function_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..bacefd0d3bae17f772c69d1eafddff2b44551417
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_function_base.py
@@ -0,0 +1,504 @@
+import platform
+import sys
+
+import pytest
+
+import numpy as np
+from numpy import (
+    arange,
+    array,
+    dtype,
+    errstate,
+    geomspace,
+    isnan,
+    linspace,
+    logspace,
+    ndarray,
+    nextafter,
+    sqrt,
+    stack,
+)
+from numpy._core import sctypes
+from numpy._core.function_base import add_newdoc
+from numpy.testing import (
+    IS_PYPY,
+    assert_,
+    assert_allclose,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+
+def _is_armhf():
+    # Check if the current platform is ARMHF (32-bit ARM architecture)
+    architecture = platform.architecture()
+    return platform.machine().startswith('arm') and architecture[0] == '32bit'
+
+class PhysicalQuantity(float):
+    def __new__(cls, value):
+        return float.__new__(cls, value)
+
+    def __add__(self, x):
+        assert_(isinstance(x, PhysicalQuantity))
+        return PhysicalQuantity(float(x) + float(self))
+    __radd__ = __add__
+
+    def __sub__(self, x):
+        assert_(isinstance(x, PhysicalQuantity))
+        return PhysicalQuantity(float(self) - float(x))
+
+    def __rsub__(self, x):
+        assert_(isinstance(x, PhysicalQuantity))
+        return PhysicalQuantity(float(x) - float(self))
+
+    def __mul__(self, x):
+        return PhysicalQuantity(float(x) * float(self))
+    __rmul__ = __mul__
+
+    def __truediv__(self, x):
+        return PhysicalQuantity(float(self) / float(x))
+
+    def __rtruediv__(self, x):
+        return PhysicalQuantity(float(x) / float(self))
+
+
+class PhysicalQuantity2(ndarray):
+    __array_priority__ = 10
+
+
+class TestLogspace:
+
+    def test_basic(self):
+        y = logspace(0, 6)
+        assert_(len(y) == 50)
+        y = logspace(0, 6, num=100)
+        assert_(y[-1] == 10 ** 6)
+        y = logspace(0, 6, endpoint=False)
+        assert_(y[-1] < 10 ** 6)
+        y = logspace(0, 6, num=7)
+        assert_array_equal(y, [1, 10, 100, 1e3, 1e4, 1e5, 1e6])
+
+    def test_start_stop_array(self):
+        start = array([0., 1.])
+        stop = array([6., 7.])
+        t1 = logspace(start, stop, 6)
+        t2 = stack([logspace(_start, _stop, 6)
+                    for _start, _stop in zip(start, stop)], axis=1)
+        assert_equal(t1, t2)
+        t3 = logspace(start, stop[0], 6)
+        t4 = stack([logspace(_start, stop[0], 6)
+                    for _start in start], axis=1)
+        assert_equal(t3, t4)
+        t5 = logspace(start, stop, 6, axis=-1)
+        assert_equal(t5, t2.T)
+
+    @pytest.mark.parametrize("axis", [0, 1, -1])
+    def test_base_array(self, axis: int):
+        start = 1
+        stop = 2
+        num = 6
+        base = array([1, 2])
+        t1 = logspace(start, stop, num=num, base=base, axis=axis)
+        t2 = stack(
+            [logspace(start, stop, num=num, base=_base) for _base in base],
+            axis=(axis + 1) % t1.ndim,
+        )
+        assert_equal(t1, t2)
+
+    @pytest.mark.parametrize("axis", [0, 1, -1])
+    def test_stop_base_array(self, axis: int):
+        start = 1
+        stop = array([2, 3])
+        num = 6
+        base = array([1, 2])
+        t1 = logspace(start, stop, num=num, base=base, axis=axis)
+        t2 = stack(
+            [logspace(start, _stop, num=num, base=_base)
+             for _stop, _base in zip(stop, base)],
+            axis=(axis + 1) % t1.ndim,
+        )
+        assert_equal(t1, t2)
+
+    def test_dtype(self):
+        y = logspace(0, 6, dtype='float32')
+        assert_equal(y.dtype, dtype('float32'))
+        y = logspace(0, 6, dtype='float64')
+        assert_equal(y.dtype, dtype('float64'))
+        y = logspace(0, 6, dtype='int32')
+        assert_equal(y.dtype, dtype('int32'))
+
+    def test_physical_quantities(self):
+        a = PhysicalQuantity(1.0)
+        b = PhysicalQuantity(5.0)
+        assert_equal(logspace(a, b), logspace(1.0, 5.0))
+
+    def test_subclass(self):
+        a = array(1).view(PhysicalQuantity2)
+        b = array(7).view(PhysicalQuantity2)
+        ls = logspace(a, b)
+        assert type(ls) is PhysicalQuantity2
+        assert_equal(ls, logspace(1.0, 7.0))
+        ls = logspace(a, b, 1)
+        assert type(ls) is PhysicalQuantity2
+        assert_equal(ls, logspace(1.0, 7.0, 1))
+
+
+class TestGeomspace:
+
+    def test_basic(self):
+        y = geomspace(1, 1e6)
+        assert_(len(y) == 50)
+        y = geomspace(1, 1e6, num=100)
+        assert_(y[-1] == 10 ** 6)
+        y = geomspace(1, 1e6, endpoint=False)
+        assert_(y[-1] < 10 ** 6)
+        y = geomspace(1, 1e6, num=7)
+        assert_array_equal(y, [1, 10, 100, 1e3, 1e4, 1e5, 1e6])
+
+        y = geomspace(8, 2, num=3)
+        assert_allclose(y, [8, 4, 2])
+        assert_array_equal(y.imag, 0)
+
+        y = geomspace(-1, -100, num=3)
+        assert_array_equal(y, [-1, -10, -100])
+        assert_array_equal(y.imag, 0)
+
+        y = geomspace(-100, -1, num=3)
+        assert_array_equal(y, [-100, -10, -1])
+        assert_array_equal(y.imag, 0)
+
+    def test_boundaries_match_start_and_stop_exactly(self):
+        # make sure that the boundaries of the returned array exactly
+        # equal 'start' and 'stop' - this isn't obvious because
+        # np.exp(np.log(x)) isn't necessarily exactly equal to x
+        start = 0.3
+        stop = 20.3
+
+        y = geomspace(start, stop, num=1)
+        assert_equal(y[0], start)
+
+        y = geomspace(start, stop, num=1, endpoint=False)
+        assert_equal(y[0], start)
+
+        y = geomspace(start, stop, num=3)
+        assert_equal(y[0], start)
+        assert_equal(y[-1], stop)
+
+        y = geomspace(start, stop, num=3, endpoint=False)
+        assert_equal(y[0], start)
+
+    def test_nan_interior(self):
+        with errstate(invalid='ignore'):
+            y = geomspace(-3, 3, num=4)
+
+        assert_equal(y[0], -3.0)
+        assert_(isnan(y[1:-1]).all())
+        assert_equal(y[3], 3.0)
+
+        with errstate(invalid='ignore'):
+            y = geomspace(-3, 3, num=4, endpoint=False)
+
+        assert_equal(y[0], -3.0)
+        assert_(isnan(y[1:]).all())
+
+    def test_complex(self):
+        # Purely imaginary
+        y = geomspace(1j, 16j, num=5)
+        assert_allclose(y, [1j, 2j, 4j, 8j, 16j])
+        assert_array_equal(y.real, 0)
+
+        y = geomspace(-4j, -324j, num=5)
+        assert_allclose(y, [-4j, -12j, -36j, -108j, -324j])
+        assert_array_equal(y.real, 0)
+
+        y = geomspace(1 + 1j, 1000 + 1000j, num=4)
+        assert_allclose(y, [1 + 1j, 10 + 10j, 100 + 100j, 1000 + 1000j])
+
+        y = geomspace(-1 + 1j, -1000 + 1000j, num=4)
+        assert_allclose(y, [-1 + 1j, -10 + 10j, -100 + 100j, -1000 + 1000j])
+
+        # Logarithmic spirals
+        y = geomspace(-1, 1, num=3, dtype=complex)
+        assert_allclose(y, [-1, 1j, +1])
+
+        y = geomspace(0 + 3j, -3 + 0j, 3)
+        assert_allclose(y, [0 + 3j, -3 / sqrt(2) + 3j / sqrt(2), -3 + 0j])
+        y = geomspace(0 + 3j, 3 + 0j, 3)
+        assert_allclose(y, [0 + 3j, 3 / sqrt(2) + 3j / sqrt(2), 3 + 0j])
+        y = geomspace(-3 + 0j, 0 - 3j, 3)
+        assert_allclose(y, [-3 + 0j, -3 / sqrt(2) - 3j / sqrt(2), 0 - 3j])
+        y = geomspace(0 + 3j, -3 + 0j, 3)
+        assert_allclose(y, [0 + 3j, -3 / sqrt(2) + 3j / sqrt(2), -3 + 0j])
+        y = geomspace(-2 - 3j, 5 + 7j, 7)
+        assert_allclose(y, [-2 - 3j, -0.29058977 - 4.15771027j,
+                            2.08885354 - 4.34146838j, 4.58345529 - 3.16355218j,
+                            6.41401745 - 0.55233457j, 6.75707386 + 3.11795092j,
+                            5 + 7j])
+
+        # Type promotion should prevent the -5 from becoming a NaN
+        y = geomspace(3j, -5, 2)
+        assert_allclose(y, [3j, -5])
+        y = geomspace(-5, 3j, 2)
+        assert_allclose(y, [-5, 3j])
+
+    def test_complex_shortest_path(self):
+        # test the shortest logarithmic spiral is used, see gh-25644
+        x = 1.2 + 3.4j
+        y = np.exp(1j * (np.pi - .1)) * x
+        z = np.geomspace(x, y, 5)
+        expected = np.array([1.2 + 3.4j, -1.47384 + 3.2905616j,
+                        -3.33577588 + 1.36842949j, -3.36011056 - 1.30753855j,
+                        -1.53343861 - 3.26321406j])
+        np.testing.assert_array_almost_equal(z, expected)
+
+    def test_dtype(self):
+        y = geomspace(1, 1e6, dtype='float32')
+        assert_equal(y.dtype, dtype('float32'))
+        y = geomspace(1, 1e6, dtype='float64')
+        assert_equal(y.dtype, dtype('float64'))
+        y = geomspace(1, 1e6, dtype='int32')
+        assert_equal(y.dtype, dtype('int32'))
+
+        # Native types
+        y = geomspace(1, 1e6, dtype=float)
+        assert_equal(y.dtype, dtype('float64'))
+        y = geomspace(1, 1e6, dtype=complex)
+        assert_equal(y.dtype, dtype('complex128'))
+
+    def test_start_stop_array_scalar(self):
+        lim1 = array([120, 100], dtype="int8")
+        lim2 = array([-120, -100], dtype="int8")
+        lim3 = array([1200, 1000], dtype="uint16")
+        t1 = geomspace(lim1[0], lim1[1], 5)
+        t2 = geomspace(lim2[0], lim2[1], 5)
+        t3 = geomspace(lim3[0], lim3[1], 5)
+        t4 = geomspace(120.0, 100.0, 5)
+        t5 = geomspace(-120.0, -100.0, 5)
+        t6 = geomspace(1200.0, 1000.0, 5)
+
+        # t3 uses float32, t6 uses float64
+        assert_allclose(t1, t4, rtol=1e-2)
+        assert_allclose(t2, t5, rtol=1e-2)
+        assert_allclose(t3, t6, rtol=1e-5)
+
+    def test_start_stop_array(self):
+        # Try to use all special cases.
+        start = array([1.e0, 32., 1j, -4j, 1 + 1j, -1])
+        stop = array([1.e4, 2., 16j, -324j, 10000 + 10000j, 1])
+        t1 = geomspace(start, stop, 5)
+        t2 = stack([geomspace(_start, _stop, 5)
+                    for _start, _stop in zip(start, stop)], axis=1)
+        assert_equal(t1, t2)
+        t3 = geomspace(start, stop[0], 5)
+        t4 = stack([geomspace(_start, stop[0], 5)
+                    for _start in start], axis=1)
+        assert_equal(t3, t4)
+        t5 = geomspace(start, stop, 5, axis=-1)
+        assert_equal(t5, t2.T)
+
+    def test_physical_quantities(self):
+        a = PhysicalQuantity(1.0)
+        b = PhysicalQuantity(5.0)
+        assert_equal(geomspace(a, b), geomspace(1.0, 5.0))
+
+    def test_subclass(self):
+        a = array(1).view(PhysicalQuantity2)
+        b = array(7).view(PhysicalQuantity2)
+        gs = geomspace(a, b)
+        assert type(gs) is PhysicalQuantity2
+        assert_equal(gs, geomspace(1.0, 7.0))
+        gs = geomspace(a, b, 1)
+        assert type(gs) is PhysicalQuantity2
+        assert_equal(gs, geomspace(1.0, 7.0, 1))
+
+    def test_bounds(self):
+        assert_raises(ValueError, geomspace, 0, 10)
+        assert_raises(ValueError, geomspace, 10, 0)
+        assert_raises(ValueError, geomspace, 0, 0)
+
+
+class TestLinspace:
+
+    def test_basic(self):
+        y = linspace(0, 10)
+        assert_(len(y) == 50)
+        y = linspace(2, 10, num=100)
+        assert_(y[-1] == 10)
+        y = linspace(2, 10, endpoint=False)
+        assert_(y[-1] < 10)
+        assert_raises(ValueError, linspace, 0, 10, num=-1)
+
+    def test_corner(self):
+        y = list(linspace(0, 1, 1))
+        assert_(y == [0.0], y)
+        assert_raises(TypeError, linspace, 0, 1, num=2.5)
+
+    def test_type(self):
+        t1 = linspace(0, 1, 0).dtype
+        t2 = linspace(0, 1, 1).dtype
+        t3 = linspace(0, 1, 2).dtype
+        assert_equal(t1, t2)
+        assert_equal(t2, t3)
+
+    def test_dtype(self):
+        y = linspace(0, 6, dtype='float32')
+        assert_equal(y.dtype, dtype('float32'))
+        y = linspace(0, 6, dtype='float64')
+        assert_equal(y.dtype, dtype('float64'))
+        y = linspace(0, 6, dtype='int32')
+        assert_equal(y.dtype, dtype('int32'))
+
+    def test_start_stop_array_scalar(self):
+        lim1 = array([-120, 100], dtype="int8")
+        lim2 = array([120, -100], dtype="int8")
+        lim3 = array([1200, 1000], dtype="uint16")
+        t1 = linspace(lim1[0], lim1[1], 5)
+        t2 = linspace(lim2[0], lim2[1], 5)
+        t3 = linspace(lim3[0], lim3[1], 5)
+        t4 = linspace(-120.0, 100.0, 5)
+        t5 = linspace(120.0, -100.0, 5)
+        t6 = linspace(1200.0, 1000.0, 5)
+        assert_equal(t1, t4)
+        assert_equal(t2, t5)
+        assert_equal(t3, t6)
+
+    def test_start_stop_array(self):
+        start = array([-120, 120], dtype="int8")
+        stop = array([100, -100], dtype="int8")
+        t1 = linspace(start, stop, 5)
+        t2 = stack([linspace(_start, _stop, 5)
+                    for _start, _stop in zip(start, stop)], axis=1)
+        assert_equal(t1, t2)
+        t3 = linspace(start, stop[0], 5)
+        t4 = stack([linspace(_start, stop[0], 5)
+                    for _start in start], axis=1)
+        assert_equal(t3, t4)
+        t5 = linspace(start, stop, 5, axis=-1)
+        assert_equal(t5, t2.T)
+
+    def test_complex(self):
+        lim1 = linspace(1 + 2j, 3 + 4j, 5)
+        t1 = array([1.0 + 2.j, 1.5 + 2.5j,  2.0 + 3j, 2.5 + 3.5j, 3.0 + 4j])
+        lim2 = linspace(1j, 10, 5)
+        t2 = array([0.0 + 1.j, 2.5 + 0.75j, 5.0 + 0.5j, 7.5 + 0.25j, 10.0 + 0j])
+        assert_equal(lim1, t1)
+        assert_equal(lim2, t2)
+
+    def test_physical_quantities(self):
+        a = PhysicalQuantity(0.0)
+        b = PhysicalQuantity(1.0)
+        assert_equal(linspace(a, b), linspace(0.0, 1.0))
+
+    def test_subclass(self):
+        a = array(0).view(PhysicalQuantity2)
+        b = array(1).view(PhysicalQuantity2)
+        ls = linspace(a, b)
+        assert type(ls) is PhysicalQuantity2
+        assert_equal(ls, linspace(0.0, 1.0))
+        ls = linspace(a, b, 1)
+        assert type(ls) is PhysicalQuantity2
+        assert_equal(ls, linspace(0.0, 1.0, 1))
+
+    def test_array_interface(self):
+        # Regression test for https://github.com/numpy/numpy/pull/6659
+        # Ensure that start/stop can be objects that implement
+        # __array_interface__ and are convertible to numeric scalars
+
+        class Arrayish:
+            """
+            A generic object that supports the __array_interface__ and hence
+            can in principle be converted to a numeric scalar, but is not
+            otherwise recognized as numeric, but also happens to support
+            multiplication by floats.
+
+            Data should be an object that implements the buffer interface,
+            and contains at least 4 bytes.
+            """
+
+            def __init__(self, data):
+                self._data = data
+
+            @property
+            def __array_interface__(self):
+                return {'shape': (), 'typestr': '<i4', 'data': self._data,
+                        'version': 3}
+
+            def __mul__(self, other):
+                # For the purposes of this test any multiplication is an
+                # identity operation :)
+                return self
+
+        one = Arrayish(array(1, dtype='<i4'))
+        five = Arrayish(array(5, dtype='<i4'))
+
+        assert_equal(linspace(one, five), linspace(1, 5))
+
+    # even when not explicitly enabled via FPSCR register
+    @pytest.mark.xfail(_is_armhf(),
+                       reason="ARMHF/AArch32 platforms seem to FTZ subnormals")
+    def test_denormal_numbers(self):
+        # Regression test for gh-5437. Will probably fail when compiled
+        # with ICC, which flushes denormals to zero
+        for ftype in sctypes['float']:
+            stop = nextafter(ftype(0), ftype(1)) * 5  # A denormal number
+            assert_(any(linspace(0, stop, 10, endpoint=False, dtype=ftype)))
+
+    def test_equivalent_to_arange(self):
+        for j in range(1000):
+            assert_equal(linspace(0, j, j + 1, dtype=int),
+                         arange(j + 1, dtype=int))
+
+    def test_retstep(self):
+        for num in [0, 1, 2]:
+            for ept in [False, True]:
+                y = linspace(0, 1, num, endpoint=ept, retstep=True)
+                assert isinstance(y, tuple) and len(y) == 2
+                if num == 2:
+                    y0_expect = [0.0, 1.0] if ept else [0.0, 0.5]
+                    assert_array_equal(y[0], y0_expect)
+                    assert_equal(y[1], y0_expect[1])
+                elif num == 1 and not ept:
+                    assert_array_equal(y[0], [0.0])
+                    assert_equal(y[1], 1.0)
+                else:
+                    assert_array_equal(y[0], [0.0][:num])
+                    assert isnan(y[1])
+
+    def test_object(self):
+        start = array(1, dtype='O')
+        stop = array(2, dtype='O')
+        y = linspace(start, stop, 3)
+        assert_array_equal(y, array([1., 1.5, 2.]))
+
+    def test_round_negative(self):
+        y = linspace(-1, 3, num=8, dtype=int)
+        t = array([-1, -1, 0, 0, 1, 1, 2, 3], dtype=int)
+        assert_array_equal(y, t)
+
+    def test_any_step_zero_and_not_mult_inplace(self):
+        # any_step_zero is True, _mult_inplace is False
+        start = array([0.0, 1.0])
+        stop = array([2.0, 1.0])
+        y = linspace(start, stop, 3)
+        assert_array_equal(y, array([[0.0, 1.0], [1.0, 1.0], [2.0, 1.0]]))
+
+
+class TestAdd_newdoc:
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    @pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+    def test_add_doc(self):
+        # test that np.add_newdoc did attach a docstring successfully:
+        tgt = "Current flat index into the array."
+        assert_equal(np._core.flatiter.index.__doc__[:len(tgt)], tgt)
+        assert_(len(np._core.ufunc.identity.__doc__) > 250)
+        assert_(len(np.lib._index_tricks_impl.mgrid.__doc__) > 300)
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    def test_errors_are_ignored(self):
+        prev_doc = np._core.flatiter.index.__doc__
+        # nothing changed, but error ignored, this should probably
+        # give a warning (or even error) in the future.
+        add_newdoc("numpy._core", "flatiter", ("index", "bad docstring"))
+        assert prev_doc == np._core.flatiter.index.__doc__
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_getlimits.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_getlimits.py
new file mode 100644
index 0000000000000000000000000000000000000000..5143945e870f94ac316a33461a90db3dd4b63eaa
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_getlimits.py
@@ -0,0 +1,171 @@
+""" Test functions for limits module.
+
+"""
+import types
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy import double, half, longdouble, single
+from numpy._core import finfo, iinfo
+from numpy.testing import assert_, assert_equal, assert_raises
+
+##################################################
+
+class TestPythonFloat:
+    def test_singleton(self):
+        ftype = finfo(float)
+        ftype2 = finfo(float)
+        assert_equal(id(ftype), id(ftype2))
+
+class TestHalf:
+    def test_singleton(self):
+        ftype = finfo(half)
+        ftype2 = finfo(half)
+        assert_equal(id(ftype), id(ftype2))
+
+class TestSingle:
+    def test_singleton(self):
+        ftype = finfo(single)
+        ftype2 = finfo(single)
+        assert_equal(id(ftype), id(ftype2))
+
+class TestDouble:
+    def test_singleton(self):
+        ftype = finfo(double)
+        ftype2 = finfo(double)
+        assert_equal(id(ftype), id(ftype2))
+
+class TestLongdouble:
+    def test_singleton(self):
+        ftype = finfo(longdouble)
+        ftype2 = finfo(longdouble)
+        assert_equal(id(ftype), id(ftype2))
+
+def assert_finfo_equal(f1, f2):
+    # assert two finfo instances have the same attributes
+    for attr in ('bits', 'eps', 'epsneg', 'iexp', 'machep',
+                 'max', 'maxexp', 'min', 'minexp', 'negep', 'nexp',
+                 'nmant', 'precision', 'resolution', 'tiny',
+                 'smallest_normal', 'smallest_subnormal'):
+        assert_equal(getattr(f1, attr), getattr(f2, attr),
+                     f'finfo instances {f1} and {f2} differ on {attr}')
+
+def assert_iinfo_equal(i1, i2):
+    # assert two iinfo instances have the same attributes
+    for attr in ('bits', 'min', 'max'):
+        assert_equal(getattr(i1, attr), getattr(i2, attr),
+                     f'iinfo instances {i1} and {i2} differ on {attr}')
+
+class TestFinfo:
+    def test_basic(self):
+        dts = list(zip(['f2', 'f4', 'f8', 'c8', 'c16'],
+                       [np.float16, np.float32, np.float64, np.complex64,
+                        np.complex128]))
+        for dt1, dt2 in dts:
+            assert_finfo_equal(finfo(dt1), finfo(dt2))
+
+        assert_raises(ValueError, finfo, 'i4')
+
+    def test_regression_gh23108(self):
+        # np.float32(1.0) and np.float64(1.0) have the same hash and are
+        # equal under the == operator
+        f1 = np.finfo(np.float32(1.0))
+        f2 = np.finfo(np.float64(1.0))
+        assert f1 != f2
+
+    def test_regression_gh23867(self):
+        class NonHashableWithDtype:
+            __hash__ = None
+            dtype = np.dtype('float32')
+
+        x = NonHashableWithDtype()
+        assert np.finfo(x) == np.finfo(x.dtype)
+
+
+class TestIinfo:
+    def test_basic(self):
+        dts = list(zip(['i1', 'i2', 'i4', 'i8',
+                   'u1', 'u2', 'u4', 'u8'],
+                  [np.int8, np.int16, np.int32, np.int64,
+                   np.uint8, np.uint16, np.uint32, np.uint64]))
+        for dt1, dt2 in dts:
+            assert_iinfo_equal(iinfo(dt1), iinfo(dt2))
+
+        assert_raises(ValueError, iinfo, 'f4')
+
+    def test_unsigned_max(self):
+        types = np._core.sctypes['uint']
+        for T in types:
+            with np.errstate(over="ignore"):
+                max_calculated = T(0) - T(1)
+            assert_equal(iinfo(T).max, max_calculated)
+
+class TestRepr:
+    def test_iinfo_repr(self):
+        expected = "iinfo(min=-32768, max=32767, dtype=int16)"
+        assert_equal(repr(np.iinfo(np.int16)), expected)
+
+    def test_finfo_repr(self):
+        expected = "finfo(resolution=1e-06, min=-3.4028235e+38,"\
+                   " max=3.4028235e+38, dtype=float32)"
+        assert_equal(repr(np.finfo(np.float32)), expected)
+
+
+def test_instances():
+    # Test the finfo and iinfo results on numeric instances agree with
+    # the results on the corresponding types
+
+    for c in [int, np.int16, np.int32, np.int64]:
+        class_iinfo = iinfo(c)
+        instance_iinfo = iinfo(c(12))
+
+        assert_iinfo_equal(class_iinfo, instance_iinfo)
+
+    for c in [float, np.float16, np.float32, np.float64]:
+        class_finfo = finfo(c)
+        instance_finfo = finfo(c(1.2))
+        assert_finfo_equal(class_finfo, instance_finfo)
+
+    with pytest.raises(ValueError):
+        iinfo(10.)
+
+    with pytest.raises(ValueError):
+        iinfo('hi')
+
+    with pytest.raises(ValueError):
+        finfo(np.int64(1))
+
+
+def test_subnormal_warning():
+    """Test that the subnormal is zero warning is not being raised."""
+    with warnings.catch_warnings(record=True) as w:
+        warnings.simplefilter('always')
+        # Test for common float types
+        for dtype in [np.float16, np.float32, np.float64]:
+            f = finfo(dtype)
+            _ = f.smallest_subnormal
+        # Also test longdouble
+        with np.errstate(all='ignore'):
+            fld = finfo(np.longdouble)
+            _ = fld.smallest_subnormal
+        # Check no warnings were raised
+        assert len(w) == 0
+
+
+def test_plausible_finfo():
+    # Assert that finfo returns reasonable results for all types
+    for ftype in np._core.sctypes['float'] + np._core.sctypes['complex']:
+        info = np.finfo(ftype)
+        assert_(info.nmant > 1)
+        assert_(info.minexp < -1)
+        assert_(info.maxexp > 1)
+
+
+class TestRuntimeSubscriptable:
+    def test_finfo_generic(self):
+        assert isinstance(np.finfo[np.float64], types.GenericAlias)
+
+    def test_iinfo_generic(self):
+        assert isinstance(np.iinfo[np.int_], types.GenericAlias)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_half.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_half.py
new file mode 100644
index 0000000000000000000000000000000000000000..4b2339b2f759146dc137802b0b8fbb196f753a8a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_half.py
@@ -0,0 +1,593 @@
+import platform
+
+import pytest
+
+import numpy as np
+from numpy import float16, float32, float64, uint16
+from numpy.testing import IS_WASM, assert_, assert_equal
+
+
+def assert_raises_fpe(strmatch, callable, *args, **kwargs):
+    try:
+        callable(*args, **kwargs)
+    except FloatingPointError as exc:
+        assert_(str(exc).find(strmatch) >= 0,
+                f"Did not raise floating point {strmatch} error")
+    else:
+        assert_(False,
+                f"Did not raise floating point {strmatch} error")
+
+class TestHalf:
+    def _create_arrays_all(self):
+        # An array of all possible float16 values
+        all_f16 = np.arange(0x10000, dtype=uint16)
+        all_f16 = all_f16.view(float16)
+
+        # NaN value can cause an invalid FP exception if HW is being used
+        with np.errstate(invalid='ignore'):
+            all_f32 = np.array(all_f16, dtype=float32)
+            all_f64 = np.array(all_f16, dtype=float64)
+        return all_f16, all_f32, all_f64
+
+    def _create_arrays_nonan(self):
+        # An array of all non-NaN float16 values, in sorted order
+        nonan_f16 = np.concatenate(
+                                (np.arange(0xfc00, 0x7fff, -1, dtype=uint16),
+                                 np.arange(0x0000, 0x7c01, 1, dtype=uint16)))
+        nonan_f16 = nonan_f16.view(float16)
+        nonan_f32 = np.array(nonan_f16, dtype=float32)
+        nonan_f64 = np.array(nonan_f16, dtype=float64)
+        return nonan_f16, nonan_f32, nonan_f64
+
+    def _create_arrays_finite(self):
+        nonan_f16, nonan_f32, nonan_f64 = self._create_arrays_nonan()
+        finite_f16 = nonan_f16[1:-1]
+        finite_f32 = nonan_f32[1:-1]
+        finite_f64 = nonan_f64[1:-1]
+        return finite_f16, finite_f32, finite_f64
+
+    def test_half_conversions(self):
+        """Checks that all 16-bit values survive conversion
+           to/from 32-bit and 64-bit float"""
+        # Because the underlying routines preserve the NaN bits, every
+        # value is preserved when converting to/from other floats.
+        all_f16, all_f32, all_f64 = self._create_arrays_all()
+        nonan_f16, _, _ = self._create_arrays_nonan()
+
+        # Convert from float32 back to float16
+        with np.errstate(invalid='ignore'):
+            b = np.array(all_f32, dtype=float16)
+        # avoid testing NaNs due to differing bit patterns in Q/S NaNs
+        b_nn = b == b
+        assert_equal(all_f16[b_nn].view(dtype=uint16),
+                     b[b_nn].view(dtype=uint16))
+
+        # Convert from float64 back to float16
+        with np.errstate(invalid='ignore'):
+            b = np.array(all_f64, dtype=float16)
+        b_nn = b == b
+        assert_equal(all_f16[b_nn].view(dtype=uint16),
+                     b[b_nn].view(dtype=uint16))
+
+        # Convert float16 to longdouble and back
+        # This doesn't necessarily preserve the extra NaN bits,
+        # so exclude NaNs.
+        a_ld = np.array(nonan_f16, dtype=np.longdouble)
+        b = np.array(a_ld, dtype=float16)
+        assert_equal(nonan_f16.view(dtype=uint16),
+                     b.view(dtype=uint16))
+
+        # Check the range for which all integers can be represented
+        i_int = np.arange(-2048, 2049)
+        i_f16 = np.array(i_int, dtype=float16)
+        j = np.array(i_f16, dtype=int)
+        assert_equal(i_int, j)
+
+    @pytest.mark.parametrize("string_dt", ["S", "U"])
+    def test_half_conversion_to_string(self, string_dt):
+        # Currently uses S/U32 (which is sufficient for float32)
+        expected_dt = np.dtype(f"{string_dt}32")
+        assert np.promote_types(np.float16, string_dt) == expected_dt
+        assert np.promote_types(string_dt, np.float16) == expected_dt
+
+        arr = np.ones(3, dtype=np.float16).astype(string_dt)
+        assert arr.dtype == expected_dt
+
+    @pytest.mark.parametrize("dtype", ["S", "U", object])
+    def test_to_half_cast_error(self, dtype):
+        arr = np.array(["3M"], dtype=dtype)
+        with pytest.raises(ValueError):
+            arr.astype(np.float16)
+
+        arr = np.array(["23490349034"], dtype=dtype)
+        with np.errstate(all="warn"):
+            with pytest.warns(RuntimeWarning):
+                arr.astype(np.float16)
+
+        with np.errstate(all="raise"):
+            with pytest.raises(FloatingPointError):
+                arr.astype(np.float16)
+
+    @pytest.mark.parametrize("string_dt", ["S", "U"])
+    def test_half_conversion_from_string(self, string_dt):
+        string = np.array("3.1416", dtype=string_dt)
+        assert string.astype(np.float16) == np.array(3.1416, dtype=np.float16)
+
+    @pytest.mark.parametrize("offset", [None, "up", "down"])
+    @pytest.mark.parametrize("shift", [None, "up", "down"])
+    @pytest.mark.parametrize("float_t", [np.float32, np.float64])
+    def test_half_conversion_rounding(self, float_t, shift, offset):
+        # Assumes that round to even is used during casting.
+        max_pattern = np.float16(np.finfo(np.float16).max).view(np.uint16)
+
+        # Test all (positive) finite numbers, denormals are most interesting
+        # however:
+        f16s_patterns = np.arange(0, max_pattern + 1, dtype=np.uint16)
+        f16s_float = f16s_patterns.view(np.float16).astype(float_t)
+
+        # Shift the values by half a bit up or a down (or do not shift),
+        if shift == "up":
+            f16s_float = 0.5 * (f16s_float[:-1] + f16s_float[1:])[1:]
+        elif shift == "down":
+            f16s_float = 0.5 * (f16s_float[:-1] + f16s_float[1:])[:-1]
+        else:
+            f16s_float = f16s_float[1:-1]
+
+        # Increase the float by a minimal value:
+        if offset == "up":
+            f16s_float = np.nextafter(f16s_float, float_t(np.inf))
+        elif offset == "down":
+            f16s_float = np.nextafter(f16s_float, float_t(-np.inf))
+
+        # Convert back to float16 and its bit pattern:
+        res_patterns = f16s_float.astype(np.float16).view(np.uint16)
+
+        # The above calculation tries the original values, or the exact
+        # midpoints between the float16 values. It then further offsets them
+        # by as little as possible. If no offset occurs, "round to even"
+        # logic will be necessary, an arbitrarily small offset should cause
+        # normal up/down rounding always.
+
+        # Calculate the expected pattern:
+        cmp_patterns = f16s_patterns[1:-1].copy()
+
+        if shift == "down" and offset != "up":
+            shift_pattern = -1
+        elif shift == "up" and offset != "down":
+            shift_pattern = 1
+        else:
+            # There cannot be a shift, either shift is None, so all rounding
+            # will go back to original, or shift is reduced by offset too much.
+            shift_pattern = 0
+
+        # If rounding occurs, is it normal rounding or round to even?
+        if offset is None:
+            # Round to even occurs, modify only non-even, cast to allow + (-1)
+            cmp_patterns[0::2].view(np.int16)[...] += shift_pattern
+        else:
+            cmp_patterns.view(np.int16)[...] += shift_pattern
+
+        assert_equal(res_patterns, cmp_patterns)
+
+    @pytest.mark.parametrize(["float_t", "uint_t", "bits"],
+                             [(np.float32, np.uint32, 23),
+                              (np.float64, np.uint64, 52)])
+    def test_half_conversion_denormal_round_even(self, float_t, uint_t, bits):
+        # Test specifically that all bits are considered when deciding
+        # whether round to even should occur (i.e. no bits are lost at the
+        # end. Compare also gh-12721. The most bits can get lost for the
+        # smallest denormal:
+        smallest_value = np.uint16(1).view(np.float16).astype(float_t)
+        assert smallest_value == 2**-24
+
+        # Will be rounded to zero based on round to even rule:
+        rounded_to_zero = smallest_value / float_t(2)
+        assert rounded_to_zero.astype(np.float16) == 0
+
+        # The significand will be all 0 for the float_t, test that we do not
+        # lose the lower ones of these:
+        for i in range(bits):
+            # slightly increasing the value should make it round up:
+            larger_pattern = rounded_to_zero.view(uint_t) | uint_t(1 << i)
+            larger_value = larger_pattern.view(float_t)
+            assert larger_value.astype(np.float16) == smallest_value
+
+    def test_nans_infs(self):
+        all_f16, all_f32, _ = self._create_arrays_all()
+        with np.errstate(all='ignore'):
+            # Check some of the ufuncs
+            assert_equal(np.isnan(all_f16), np.isnan(all_f32))
+            assert_equal(np.isinf(all_f16), np.isinf(all_f32))
+            assert_equal(np.isfinite(all_f16), np.isfinite(all_f32))
+            assert_equal(np.signbit(all_f16), np.signbit(all_f32))
+            assert_equal(np.spacing(float16(65504)), np.inf)
+
+            # Check comparisons of all values with NaN
+            nan = float16(np.nan)
+
+            assert_(not (all_f16 == nan).any())
+            assert_(not (nan == all_f16).any())
+
+            assert_((all_f16 != nan).all())
+            assert_((nan != all_f16).all())
+
+            assert_(not (all_f16 < nan).any())
+            assert_(not (nan < all_f16).any())
+
+            assert_(not (all_f16 <= nan).any())
+            assert_(not (nan <= all_f16).any())
+
+            assert_(not (all_f16 > nan).any())
+            assert_(not (nan > all_f16).any())
+
+            assert_(not (all_f16 >= nan).any())
+            assert_(not (nan >= all_f16).any())
+
+    def test_half_values(self):
+        """Confirms a small number of known half values"""
+        a = np.array([1.0, -1.0,
+                      2.0, -2.0,
+                      0.0999755859375, 0.333251953125,  # 1/10, 1/3
+                      65504, -65504,           # Maximum magnitude
+                      2.0**(-14), -2.0**(-14),  # Minimum normal
+                      2.0**(-24), -2.0**(-24),  # Minimum subnormal
+                      0, -1 / 1e1000,            # Signed zeros
+                      np.inf, -np.inf])
+        b = np.array([0x3c00, 0xbc00,
+                      0x4000, 0xc000,
+                      0x2e66, 0x3555,
+                      0x7bff, 0xfbff,
+                      0x0400, 0x8400,
+                      0x0001, 0x8001,
+                      0x0000, 0x8000,
+                      0x7c00, 0xfc00], dtype=uint16)
+        b = b.view(dtype=float16)
+        assert_equal(a, b)
+
+    def test_half_rounding(self):
+        """Checks that rounding when converting to half is correct"""
+        a = np.array([2.0**-25 + 2.0**-35,  # Rounds to minimum subnormal
+                      2.0**-25,       # Underflows to zero (nearest even mode)
+                      2.0**-26,       # Underflows to zero
+                      1.0 + 2.0**-11 + 2.0**-16,  # rounds to 1.0+2**(-10)
+                      1.0 + 2.0**-11,   # rounds to 1.0 (nearest even mode)
+                      1.0 + 2.0**-12,   # rounds to 1.0
+                      65519,          # rounds to 65504
+                      65520],         # rounds to inf
+                      dtype=float64)
+        rounded = [2.0**-24,
+                   0.0,
+                   0.0,
+                   1.0 + 2.0**(-10),
+                   1.0,
+                   1.0,
+                   65504,
+                   np.inf]
+
+        # Check float64->float16 rounding
+        with np.errstate(over="ignore"):
+            b = np.array(a, dtype=float16)
+        assert_equal(b, rounded)
+
+        # Check float32->float16 rounding
+        a = np.array(a, dtype=float32)
+        with np.errstate(over="ignore"):
+            b = np.array(a, dtype=float16)
+        assert_equal(b, rounded)
+
+    def test_half_correctness(self):
+        """Take every finite float16, and check the casting functions with
+           a manual conversion."""
+        finite_f16, finite_f32, finite_f64 = self._create_arrays_finite()
+
+        # Create an array of all finite float16s
+        a_bits = finite_f16.view(dtype=uint16)
+
+        # Convert to 64-bit float manually
+        a_sgn = (-1.0)**((a_bits & 0x8000) >> 15)
+        a_exp = np.array((a_bits & 0x7c00) >> 10, dtype=np.int32) - 15
+        a_man = (a_bits & 0x03ff) * 2.0**(-10)
+        # Implicit bit of normalized floats
+        a_man[a_exp != -15] += 1
+        # Denormalized exponent is -14
+        a_exp[a_exp == -15] = -14
+
+        a_manual = a_sgn * a_man * 2.0**a_exp
+
+        a32_fail = np.nonzero(finite_f32 != a_manual)[0]
+        if len(a32_fail) != 0:
+            bad_index = a32_fail[0]
+            assert_equal(finite_f32, a_manual,
+                 "First non-equal is half value 0x%x -> %g != %g" %
+                            (a_bits[bad_index],
+                             finite_f32[bad_index],
+                             a_manual[bad_index]))
+
+        a64_fail = np.nonzero(finite_f64 != a_manual)[0]
+        if len(a64_fail) != 0:
+            bad_index = a64_fail[0]
+            assert_equal(finite_f64, a_manual,
+                 "First non-equal is half value 0x%x -> %g != %g" %
+                            (a_bits[bad_index],
+                             finite_f64[bad_index],
+                             a_manual[bad_index]))
+
+    def test_half_ordering(self):
+        """Make sure comparisons are working right"""
+        nonan_f16, _, _ = self._create_arrays_nonan()
+
+        # All non-NaN float16 values in reverse order
+        a = nonan_f16[::-1].copy()
+
+        # 32-bit float copy
+        b = np.array(a, dtype=float32)
+
+        # Should sort the same
+        a.sort()
+        b.sort()
+        assert_equal(a, b)
+
+        # Comparisons should work
+        assert_((a[:-1] <= a[1:]).all())
+        assert_(not (a[:-1] > a[1:]).any())
+        assert_((a[1:] >= a[:-1]).all())
+        assert_(not (a[1:] < a[:-1]).any())
+        # All != except for +/-0
+        assert_equal(np.nonzero(a[:-1] < a[1:])[0].size, a.size - 2)
+        assert_equal(np.nonzero(a[1:] > a[:-1])[0].size, a.size - 2)
+
+    def test_half_funcs(self):
+        """Test the various ArrFuncs"""
+
+        # fill
+        assert_equal(np.arange(10, dtype=float16),
+                     np.arange(10, dtype=float32))
+
+        # fillwithscalar
+        a = np.zeros((5,), dtype=float16)
+        a.fill(1)
+        assert_equal(a, np.ones((5,), dtype=float16))
+
+        # nonzero and copyswap
+        a = np.array([0, 0, -1, -1 / 1e20, 0, 2.0**-24, 7.629e-6], dtype=float16)
+        assert_equal(a.nonzero()[0],
+                     [2, 5, 6])
+        a = a.byteswap()
+        a = a.view(a.dtype.newbyteorder())
+        assert_equal(a.nonzero()[0],
+                     [2, 5, 6])
+
+        # dot
+        a = np.arange(0, 10, 0.5, dtype=float16)
+        b = np.ones((20,), dtype=float16)
+        assert_equal(np.dot(a, b),
+                     95)
+
+        # argmax
+        a = np.array([0, -np.inf, -2, 0.5, 12.55, 7.3, 2.1, 12.4], dtype=float16)
+        assert_equal(a.argmax(),
+                     4)
+        a = np.array([0, -np.inf, -2, np.inf, 12.55, np.nan, 2.1, 12.4], dtype=float16)
+        assert_equal(a.argmax(),
+                     5)
+
+        # getitem
+        a = np.arange(10, dtype=float16)
+        for i in range(10):
+            assert_equal(a.item(i), i)
+
+    def test_spacing_nextafter(self):
+        """Test np.spacing and np.nextafter"""
+        # All non-negative finite #'s
+        a = np.arange(0x7c00, dtype=uint16)
+        hinf = np.array((np.inf,), dtype=float16)
+        hnan = np.array((np.nan,), dtype=float16)
+        a_f16 = a.view(dtype=float16)
+
+        assert_equal(np.spacing(a_f16[:-1]), a_f16[1:] - a_f16[:-1])
+
+        assert_equal(np.nextafter(a_f16[:-1], hinf), a_f16[1:])
+        assert_equal(np.nextafter(a_f16[0], -hinf), -a_f16[1])
+        assert_equal(np.nextafter(a_f16[1:], -hinf), a_f16[:-1])
+
+        assert_equal(np.nextafter(hinf, a_f16), a_f16[-1])
+        assert_equal(np.nextafter(-hinf, a_f16), -a_f16[-1])
+
+        assert_equal(np.nextafter(hinf, hinf), hinf)
+        assert_equal(np.nextafter(hinf, -hinf), a_f16[-1])
+        assert_equal(np.nextafter(-hinf, hinf), -a_f16[-1])
+        assert_equal(np.nextafter(-hinf, -hinf), -hinf)
+
+        assert_equal(np.nextafter(a_f16, hnan), hnan[0])
+        assert_equal(np.nextafter(hnan, a_f16), hnan[0])
+
+        assert_equal(np.nextafter(hnan, hnan), hnan)
+        assert_equal(np.nextafter(hinf, hnan), hnan)
+        assert_equal(np.nextafter(hnan, hinf), hnan)
+
+        # switch to negatives
+        a |= 0x8000
+
+        assert_equal(np.spacing(a_f16[0]), np.spacing(a_f16[1]))
+        assert_equal(np.spacing(a_f16[1:]), a_f16[:-1] - a_f16[1:])
+
+        assert_equal(np.nextafter(a_f16[0], hinf), -a_f16[1])
+        assert_equal(np.nextafter(a_f16[1:], hinf), a_f16[:-1])
+        assert_equal(np.nextafter(a_f16[:-1], -hinf), a_f16[1:])
+
+        assert_equal(np.nextafter(hinf, a_f16), -a_f16[-1])
+        assert_equal(np.nextafter(-hinf, a_f16), a_f16[-1])
+
+        assert_equal(np.nextafter(a_f16, hnan), hnan[0])
+        assert_equal(np.nextafter(hnan, a_f16), hnan[0])
+
+    def test_half_ufuncs(self):
+        """Test the various ufuncs"""
+
+        a = np.array([0, 1, 2, 4, 2], dtype=float16)
+        b = np.array([-2, 5, 1, 4, 3], dtype=float16)
+        c = np.array([0, -1, -np.inf, np.nan, 6], dtype=float16)
+
+        assert_equal(np.add(a, b), [-2, 6, 3, 8, 5])
+        assert_equal(np.subtract(a, b), [2, -4, 1, 0, -1])
+        assert_equal(np.multiply(a, b), [0, 5, 2, 16, 6])
+        assert_equal(np.divide(a, b), [0, 0.199951171875, 2, 1, 0.66650390625])
+
+        assert_equal(np.equal(a, b), [False, False, False, True, False])
+        assert_equal(np.not_equal(a, b), [True, True, True, False, True])
+        assert_equal(np.less(a, b), [False, True, False, False, True])
+        assert_equal(np.less_equal(a, b), [False, True, False, True, True])
+        assert_equal(np.greater(a, b), [True, False, True, False, False])
+        assert_equal(np.greater_equal(a, b), [True, False, True, True, False])
+        assert_equal(np.logical_and(a, b), [False, True, True, True, True])
+        assert_equal(np.logical_or(a, b), [True, True, True, True, True])
+        assert_equal(np.logical_xor(a, b), [True, False, False, False, False])
+        assert_equal(np.logical_not(a), [True, False, False, False, False])
+
+        assert_equal(np.isnan(c), [False, False, False, True, False])
+        assert_equal(np.isinf(c), [False, False, True, False, False])
+        assert_equal(np.isfinite(c), [True, True, False, False, True])
+        assert_equal(np.signbit(b), [True, False, False, False, False])
+
+        assert_equal(np.copysign(b, a), [2, 5, 1, 4, 3])
+
+        assert_equal(np.maximum(a, b), [0, 5, 2, 4, 3])
+
+        x = np.maximum(b, c)
+        assert_(np.isnan(x[3]))
+        x[3] = 0
+        assert_equal(x, [0, 5, 1, 0, 6])
+
+        assert_equal(np.minimum(a, b), [-2, 1, 1, 4, 2])
+
+        x = np.minimum(b, c)
+        assert_(np.isnan(x[3]))
+        x[3] = 0
+        assert_equal(x, [-2, -1, -np.inf, 0, 3])
+
+        assert_equal(np.fmax(a, b), [0, 5, 2, 4, 3])
+        assert_equal(np.fmax(b, c), [0, 5, 1, 4, 6])
+        assert_equal(np.fmin(a, b), [-2, 1, 1, 4, 2])
+        assert_equal(np.fmin(b, c), [-2, -1, -np.inf, 4, 3])
+
+        assert_equal(np.floor_divide(a, b), [0, 0, 2, 1, 0])
+        assert_equal(np.remainder(a, b), [0, 1, 0, 0, 2])
+        assert_equal(np.divmod(a, b), ([0, 0, 2, 1, 0], [0, 1, 0, 0, 2]))
+        assert_equal(np.square(b), [4, 25, 1, 16, 9])
+        assert_equal(np.reciprocal(b), [-0.5, 0.199951171875, 1, 0.25, 0.333251953125])
+        assert_equal(np.ones_like(b), [1, 1, 1, 1, 1])
+        assert_equal(np.conjugate(b), b)
+        assert_equal(np.absolute(b), [2, 5, 1, 4, 3])
+        assert_equal(np.negative(b), [2, -5, -1, -4, -3])
+        assert_equal(np.positive(b), b)
+        assert_equal(np.sign(b), [-1, 1, 1, 1, 1])
+        assert_equal(np.modf(b), ([0, 0, 0, 0, 0], b))
+        assert_equal(np.frexp(b), ([-0.5, 0.625, 0.5, 0.5, 0.75], [2, 3, 1, 3, 2]))
+        assert_equal(np.ldexp(b, [0, 1, 2, 4, 2]), [-2, 10, 4, 64, 12])
+
+    def test_half_coercion(self):
+        """Test that half gets coerced properly with the other types"""
+        a16 = np.array((1,), dtype=float16)
+        a32 = np.array((1,), dtype=float32)
+        b16 = float16(1)
+        b32 = float32(1)
+
+        assert np.power(a16, 2).dtype == float16
+        assert np.power(a16, 2.0).dtype == float16
+        assert np.power(a16, b16).dtype == float16
+        assert np.power(a16, b32).dtype == float32
+        assert np.power(a16, a16).dtype == float16
+        assert np.power(a16, a32).dtype == float32
+
+        assert np.power(b16, 2).dtype == float16
+        assert np.power(b16, 2.0).dtype == float16
+        assert np.power(b16, b16).dtype, float16
+        assert np.power(b16, b32).dtype, float32
+        assert np.power(b16, a16).dtype, float16
+        assert np.power(b16, a32).dtype, float32
+
+        assert np.power(a32, a16).dtype == float32
+        assert np.power(a32, b16).dtype == float32
+        assert np.power(b32, a16).dtype == float32
+        assert np.power(b32, b16).dtype == float32
+
+    @pytest.mark.skipif(platform.machine() == "armv5tel",
+                        reason="See gh-413.")
+    @pytest.mark.skipif(IS_WASM,
+                        reason="fp exceptions don't work in wasm.")
+    def test_half_fpe(self):
+        with np.errstate(all='raise'):
+            sx16 = np.array((1e-4,), dtype=float16)
+            bx16 = np.array((1e4,), dtype=float16)
+            sy16 = float16(1e-4)
+            by16 = float16(1e4)
+
+            # Underflow errors
+            assert_raises_fpe('underflow', lambda a, b: a * b, sx16, sx16)
+            assert_raises_fpe('underflow', lambda a, b: a * b, sx16, sy16)
+            assert_raises_fpe('underflow', lambda a, b: a * b, sy16, sx16)
+            assert_raises_fpe('underflow', lambda a, b: a * b, sy16, sy16)
+            assert_raises_fpe('underflow', lambda a, b: a / b, sx16, bx16)
+            assert_raises_fpe('underflow', lambda a, b: a / b, sx16, by16)
+            assert_raises_fpe('underflow', lambda a, b: a / b, sy16, bx16)
+            assert_raises_fpe('underflow', lambda a, b: a / b, sy16, by16)
+            assert_raises_fpe('underflow', lambda a, b: a / b,
+                                             float16(2.**-14), float16(2**11))
+            assert_raises_fpe('underflow', lambda a, b: a / b,
+                                             float16(-2.**-14), float16(2**11))
+            assert_raises_fpe('underflow', lambda a, b: a / b,
+                                             float16(2.**-14 + 2**-24), float16(2))
+            assert_raises_fpe('underflow', lambda a, b: a / b,
+                                             float16(-2.**-14 - 2**-24), float16(2))
+            assert_raises_fpe('underflow', lambda a, b: a / b,
+                                             float16(2.**-14 + 2**-23), float16(4))
+
+            # Overflow errors
+            assert_raises_fpe('overflow', lambda a, b: a * b, bx16, bx16)
+            assert_raises_fpe('overflow', lambda a, b: a * b, bx16, by16)
+            assert_raises_fpe('overflow', lambda a, b: a * b, by16, bx16)
+            assert_raises_fpe('overflow', lambda a, b: a * b, by16, by16)
+            assert_raises_fpe('overflow', lambda a, b: a / b, bx16, sx16)
+            assert_raises_fpe('overflow', lambda a, b: a / b, bx16, sy16)
+            assert_raises_fpe('overflow', lambda a, b: a / b, by16, sx16)
+            assert_raises_fpe('overflow', lambda a, b: a / b, by16, sy16)
+            assert_raises_fpe('overflow', lambda a, b: a + b,
+                                             float16(65504), float16(17))
+            assert_raises_fpe('overflow', lambda a, b: a - b,
+                                             float16(-65504), float16(17))
+            assert_raises_fpe('overflow', np.nextafter, float16(65504), float16(np.inf))
+            assert_raises_fpe('overflow', np.nextafter, float16(-65504), float16(-np.inf))  # noqa: E501
+            assert_raises_fpe('overflow', np.spacing, float16(65504))
+
+            # Invalid value errors
+            assert_raises_fpe('invalid', np.divide, float16(np.inf), float16(np.inf))
+            assert_raises_fpe('invalid', np.spacing, float16(np.inf))
+            assert_raises_fpe('invalid', np.spacing, float16(np.nan))
+
+            # These should not raise
+            float16(65472) + float16(32)
+            float16(2**-13) / float16(2)
+            float16(2**-14) / float16(2**10)
+            np.spacing(float16(-65504))
+            np.nextafter(float16(65504), float16(-np.inf))
+            np.nextafter(float16(-65504), float16(np.inf))
+            np.nextafter(float16(np.inf), float16(0))
+            np.nextafter(float16(-np.inf), float16(0))
+            np.nextafter(float16(0), float16(np.nan))
+            np.nextafter(float16(np.nan), float16(0))
+            float16(2**-14) / float16(2**10)
+            float16(-2**-14) / float16(2**10)
+            float16(2**-14 + 2**-23) / float16(2)
+            float16(-2**-14 - 2**-23) / float16(2)
+
+    def test_half_array_interface(self):
+        """Test that half is compatible with __array_interface__"""
+        class Dummy:
+            pass
+
+        a = np.ones((1,), dtype=float16)
+        b = Dummy()
+        b.__array_interface__ = a.__array_interface__
+        c = np.array(b)
+        assert_(c.dtype == float16)
+        assert_equal(a, c)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_hashtable.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_hashtable.py
new file mode 100644
index 0000000000000000000000000000000000000000..f6262e52835e097cc4e0748e9724cbc30eebff9c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_hashtable.py
@@ -0,0 +1,36 @@
+import random
+
+import pytest
+
+from numpy._core._multiarray_tests import identityhash_tester
+
+
+@pytest.mark.parametrize("key_length", [1, 3, 6])
+@pytest.mark.parametrize("length", [1, 16, 2000])
+def test_identity_hashtable(key_length, length):
+    # use a 30 object pool for everything (duplicates will happen)
+    pool = [object() for i in range(20)]
+    keys_vals = []
+    for i in range(length):
+        keys = tuple(random.choices(pool, k=key_length))
+        keys_vals.append((keys, random.choice(pool)))
+
+    dictionary = dict(keys_vals)
+
+    # add a random item at the end:
+    keys_vals.append(random.choice(keys_vals))
+    # the expected one could be different with duplicates:
+    expected = dictionary[keys_vals[-1][0]]
+
+    res = identityhash_tester(key_length, keys_vals, replace=True)
+    assert res is expected
+
+    if length == 1:
+        return
+
+    # add a new item with a key that is already used and a new value, this
+    # should error if replace is False, see gh-26690
+    new_key = (keys_vals[1][0], object())
+    keys_vals[0] = new_key
+    with pytest.raises(RuntimeError):
+        identityhash_tester(key_length, keys_vals)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_indexerrors.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_indexerrors.py
new file mode 100644
index 0000000000000000000000000000000000000000..fb5eb85e994a8c5a92729cb9c0472d656f211a39
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_indexerrors.py
@@ -0,0 +1,122 @@
+import numpy as np
+from numpy.testing import assert_raises, assert_raises_regex
+
+
+class TestIndexErrors:
+    '''Tests to exercise indexerrors not covered by other tests.'''
+
+    def test_arraytypes_fasttake(self):
+        'take from a 0-length dimension'
+        x = np.empty((2, 3, 0, 4))
+        assert_raises(IndexError, x.take, [0], axis=2)
+        assert_raises(IndexError, x.take, [1], axis=2)
+        assert_raises(IndexError, x.take, [0], axis=2, mode='wrap')
+        assert_raises(IndexError, x.take, [0], axis=2, mode='clip')
+
+    def test_take_from_object(self):
+        # Check exception taking from object array
+        d = np.zeros(5, dtype=object)
+        assert_raises(IndexError, d.take, [6])
+
+        # Check exception taking from 0-d array
+        d = np.zeros((5, 0), dtype=object)
+        assert_raises(IndexError, d.take, [1], axis=1)
+        assert_raises(IndexError, d.take, [0], axis=1)
+        assert_raises(IndexError, d.take, [0])
+        assert_raises(IndexError, d.take, [0], mode='wrap')
+        assert_raises(IndexError, d.take, [0], mode='clip')
+
+    def test_multiindex_exceptions(self):
+        a = np.empty(5, dtype=object)
+        assert_raises(IndexError, a.item, 20)
+        a = np.empty((5, 0), dtype=object)
+        assert_raises(IndexError, a.item, (0, 0))
+
+    def test_put_exceptions(self):
+        a = np.zeros((5, 5))
+        assert_raises(IndexError, a.put, 100, 0)
+        a = np.zeros((5, 5), dtype=object)
+        assert_raises(IndexError, a.put, 100, 0)
+        a = np.zeros((5, 5, 0))
+        assert_raises(IndexError, a.put, 100, 0)
+        a = np.zeros((5, 5, 0), dtype=object)
+        assert_raises(IndexError, a.put, 100, 0)
+
+    def test_iterators_exceptions(self):
+        "cases in iterators.c"
+        def assign(obj, ind, val):
+            obj[ind] = val
+
+        a = np.zeros([1, 2, 3])
+        assert_raises(IndexError, lambda: a[0, 5, None, 2])
+        assert_raises(IndexError, lambda: a[0, 5, 0, 2])
+        assert_raises(IndexError, lambda: assign(a, (0, 5, None, 2), 1))
+        assert_raises(IndexError, lambda: assign(a, (0, 5, 0, 2),  1))
+
+        a = np.zeros([1, 0, 3])
+        assert_raises(IndexError, lambda: a[0, 0, None, 2])
+        assert_raises(IndexError, lambda: assign(a, (0, 0, None, 2), 1))
+
+        a = np.zeros([1, 2, 3])
+        assert_raises(IndexError, lambda: a.flat[10])
+        assert_raises(IndexError, lambda: assign(a.flat, 10, 5))
+        a = np.zeros([1, 0, 3])
+        assert_raises(IndexError, lambda: a.flat[10])
+        assert_raises(IndexError, lambda: assign(a.flat, 10, 5))
+
+        a = np.zeros([1, 2, 3])
+        assert_raises(IndexError, lambda: a.flat[np.array(10)])
+        assert_raises(IndexError, lambda: assign(a.flat, np.array(10), 5))
+        a = np.zeros([1, 0, 3])
+        assert_raises(IndexError, lambda: a.flat[np.array(10)])
+        assert_raises(IndexError, lambda: assign(a.flat, np.array(10), 5))
+
+        a = np.zeros([1, 2, 3])
+        assert_raises(IndexError, lambda: a.flat[np.array([10])])
+        assert_raises(IndexError, lambda: assign(a.flat, np.array([10]), 5))
+        a = np.zeros([1, 0, 3])
+        assert_raises(IndexError, lambda: a.flat[np.array([10])])
+        assert_raises(IndexError, lambda: assign(a.flat, np.array([10]), 5))
+
+    def test_mapping(self):
+        "cases from mapping.c"
+
+        def assign(obj, ind, val):
+            obj[ind] = val
+
+        a = np.zeros((0, 10))
+        assert_raises(IndexError, lambda: a[12])
+
+        a = np.zeros((3, 5))
+        assert_raises(IndexError, lambda: a[(10, 20)])
+        assert_raises(IndexError, lambda: assign(a, (10, 20), 1))
+        a = np.zeros((3, 0))
+        assert_raises(IndexError, lambda: a[(1, 0)])
+        assert_raises(IndexError, lambda: assign(a, (1, 0), 1))
+
+        a = np.zeros((10,))
+        assert_raises(IndexError, lambda: assign(a, 10, 1))
+        a = np.zeros((0,))
+        assert_raises(IndexError, lambda: assign(a, 10, 1))
+
+        a = np.zeros((3, 5))
+        assert_raises(IndexError, lambda: a[(1, [1, 20])])
+        assert_raises(IndexError, lambda: assign(a, (1, [1, 20]), 1))
+        a = np.zeros((3, 0))
+        assert_raises(IndexError, lambda: a[(1, [0, 1])])
+        assert_raises(IndexError, lambda: assign(a, (1, [0, 1]), 1))
+
+    def test_mapping_error_message(self):
+        a = np.zeros((3, 5))
+        index = (1, 2, 3, 4, 5)
+        assert_raises_regex(
+                IndexError,
+                "too many indices for array: "
+                "array is 2-dimensional, but 5 were indexed",
+                lambda: a[index])
+
+    def test_methods(self):
+        "cases from methods.c"
+
+        a = np.zeros((3, 3))
+        assert_raises(IndexError, lambda: a.item(100))
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_indexing.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_indexing.py
new file mode 100644
index 0000000000000000000000000000000000000000..ece6c262d119e8756622be472ed279f9f23bb07d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_indexing.py
@@ -0,0 +1,1692 @@
+import functools
+import inspect
+import operator
+import sys
+import warnings
+from itertools import product
+
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_tests import array_indexing
+from numpy.exceptions import ComplexWarning, VisibleDeprecationWarning
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_PYPY,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+class TestIndexing:
+    def test_index_no_floats(self):
+        a = np.array([[[5]]])
+
+        assert_raises(IndexError, lambda: a[0.0])
+        assert_raises(IndexError, lambda: a[0, 0.0])
+        assert_raises(IndexError, lambda: a[0.0, 0])
+        assert_raises(IndexError, lambda: a[0.0, :])
+        assert_raises(IndexError, lambda: a[:, 0.0])
+        assert_raises(IndexError, lambda: a[:, 0.0, :])
+        assert_raises(IndexError, lambda: a[0.0, :, :])
+        assert_raises(IndexError, lambda: a[0, 0, 0.0])
+        assert_raises(IndexError, lambda: a[0.0, 0, 0])
+        assert_raises(IndexError, lambda: a[0, 0.0, 0])
+        assert_raises(IndexError, lambda: a[-1.4])
+        assert_raises(IndexError, lambda: a[0, -1.4])
+        assert_raises(IndexError, lambda: a[-1.4, 0])
+        assert_raises(IndexError, lambda: a[-1.4, :])
+        assert_raises(IndexError, lambda: a[:, -1.4])
+        assert_raises(IndexError, lambda: a[:, -1.4, :])
+        assert_raises(IndexError, lambda: a[-1.4, :, :])
+        assert_raises(IndexError, lambda: a[0, 0, -1.4])
+        assert_raises(IndexError, lambda: a[-1.4, 0, 0])
+        assert_raises(IndexError, lambda: a[0, -1.4, 0])
+        assert_raises(IndexError, lambda: a[0.0:, 0.0])
+        assert_raises(IndexError, lambda: a[0.0:, 0.0, :])
+
+    def test_slicing_no_floats(self):
+        a = np.array([[5]])
+
+        # start as float.
+        assert_raises(TypeError, lambda: a[0.0:])
+        assert_raises(TypeError, lambda: a[0:, 0.0:2])
+        assert_raises(TypeError, lambda: a[0.0::2, :0])
+        assert_raises(TypeError, lambda: a[0.0:1:2, :])
+        assert_raises(TypeError, lambda: a[:, 0.0:])
+        # stop as float.
+        assert_raises(TypeError, lambda: a[:0.0])
+        assert_raises(TypeError, lambda: a[:0, 1:2.0])
+        assert_raises(TypeError, lambda: a[:0.0:2, :0])
+        assert_raises(TypeError, lambda: a[:0.0, :])
+        assert_raises(TypeError, lambda: a[:, 0:4.0:2])
+        # step as float.
+        assert_raises(TypeError, lambda: a[::1.0])
+        assert_raises(TypeError, lambda: a[0:, :2:2.0])
+        assert_raises(TypeError, lambda: a[1::4.0, :0])
+        assert_raises(TypeError, lambda: a[::5.0, :])
+        assert_raises(TypeError, lambda: a[:, 0:4:2.0])
+        # mixed.
+        assert_raises(TypeError, lambda: a[1.0:2:2.0])
+        assert_raises(TypeError, lambda: a[1.0::2.0])
+        assert_raises(TypeError, lambda: a[0:, :2.0:2.0])
+        assert_raises(TypeError, lambda: a[1.0:1:4.0, :0])
+        assert_raises(TypeError, lambda: a[1.0:5.0:5.0, :])
+        assert_raises(TypeError, lambda: a[:, 0.4:4.0:2.0])
+        # should still get the DeprecationWarning if step = 0.
+        assert_raises(TypeError, lambda: a[::0.0])
+
+    def test_index_no_array_to_index(self):
+        # No non-scalar arrays.
+        a = np.array([[[1]]])
+
+        assert_raises(TypeError, lambda: a[a:a:a])
+
+    def test_none_index(self):
+        # `None` index adds newaxis
+        a = np.array([1, 2, 3])
+        assert_equal(a[None], a[np.newaxis])
+        assert_equal(a[None].ndim, a.ndim + 1)
+
+    def test_empty_tuple_index(self):
+        # Empty tuple index creates a view
+        a = np.array([1, 2, 3])
+        assert_equal(a[()], a)
+        assert_(a[()].base is a)
+        a = np.array(0)
+        assert_(isinstance(a[()], np.int_))
+
+    def test_void_scalar_empty_tuple(self):
+        s = np.zeros((), dtype='V4')
+        assert_equal(s[()].dtype, s.dtype)
+        assert_equal(s[()], s)
+        assert_equal(type(s[...]), np.ndarray)
+
+    def test_same_kind_index_casting(self):
+        # Indexes should be cast with same-kind and not safe, even if that
+        # is somewhat unsafe. So test various different code paths.
+        index = np.arange(5)
+        u_index = index.astype(np.uintp)
+        arr = np.arange(10)
+
+        assert_array_equal(arr[index], arr[u_index])
+        arr[u_index] = np.arange(5)
+        assert_array_equal(arr, np.arange(10))
+
+        arr = np.arange(10).reshape(5, 2)
+        assert_array_equal(arr[index], arr[u_index])
+
+        arr[u_index] = np.arange(5)[:, None]
+        assert_array_equal(arr, np.arange(5)[:, None].repeat(2, axis=1))
+
+        arr = np.arange(25).reshape(5, 5)
+        assert_array_equal(arr[u_index, u_index], arr[index, index])
+
+    def test_empty_fancy_index(self):
+        # Empty list index creates an empty array
+        # with the same dtype (but with weird shape)
+        a = np.array([1, 2, 3])
+        assert_equal(a[[]], [])
+        assert_equal(a[[]].dtype, a.dtype)
+
+        b = np.array([], dtype=np.intp)
+        assert_equal(a[[]], [])
+        assert_equal(a[[]].dtype, a.dtype)
+
+        b = np.array([])
+        assert_raises(IndexError, a.__getitem__, b)
+
+    def test_gh_26542(self):
+        a = np.array([0, 1, 2])
+        idx = np.array([2, 1, 0])
+        a[idx] = a
+        expected = np.array([2, 1, 0])
+        assert_equal(a, expected)
+
+    def test_gh_26542_2d(self):
+        a = np.array([[0, 1, 2]])
+        idx_row = np.zeros(3, dtype=int)
+        idx_col = np.array([2, 1, 0])
+        a[idx_row, idx_col] = a
+        expected = np.array([[2, 1, 0]])
+        assert_equal(a, expected)
+
+    def test_gh_26542_index_overlap(self):
+        arr = np.arange(100)
+        expected_vals = np.copy(arr[:-10])
+        arr[10:] = arr[:-10]
+        actual_vals = arr[10:]
+        assert_equal(actual_vals, expected_vals)
+
+    def test_gh_26844(self):
+        expected = [0, 1, 3, 3, 3]
+        a = np.arange(5)
+        a[2:][a[:-2]] = 3
+        assert_equal(a, expected)
+
+    def test_gh_26844_segfault(self):
+        # check for absence of segfault for:
+        # https://github.com/numpy/numpy/pull/26958/files#r1854589178
+        a = np.arange(5)
+        expected = [0, 1, 3, 3, 3]
+        a[2:][None, a[:-2]] = 3
+        assert_equal(a, expected)
+
+    def test_ellipsis_index(self):
+        a = np.array([[1, 2, 3],
+                      [4, 5, 6],
+                      [7, 8, 9]])
+        assert_(a[...] is not a)
+        assert_equal(a[...], a)
+        # `a[...]` was `a` in numpy <1.9.
+        assert_(a[...].base is a)
+
+        # Slicing with ellipsis can skip an
+        # arbitrary number of dimensions
+        assert_equal(a[0, ...], a[0])
+        assert_equal(a[0, ...], a[0, :])
+        assert_equal(a[..., 0], a[:, 0])
+
+        # Slicing with ellipsis always results
+        # in an array, not a scalar
+        assert_equal(a[0, ..., 1], np.array(2))
+
+        # Assignment with `(Ellipsis,)` on 0-d arrays
+        b = np.array(1)
+        b[(Ellipsis,)] = 2
+        assert_equal(b, 2)
+
+    def test_single_int_index(self):
+        # Single integer index selects one row
+        a = np.array([[1, 2, 3],
+                      [4, 5, 6],
+                      [7, 8, 9]])
+
+        assert_equal(a[0], [1, 2, 3])
+        assert_equal(a[-1], [7, 8, 9])
+
+        # Index out of bounds produces IndexError
+        assert_raises(IndexError, a.__getitem__, 1 << 30)
+        # Index overflow produces IndexError
+        assert_raises(IndexError, a.__getitem__, 1 << 64)
+
+    def test_single_bool_index(self):
+        # Single boolean index
+        a = np.array([[1, 2, 3],
+                      [4, 5, 6],
+                      [7, 8, 9]])
+
+        assert_equal(a[np.array(True)], a[None])
+        assert_equal(a[np.array(False)], a[None][0:0])
+
+    def test_boolean_shape_mismatch(self):
+        arr = np.ones((5, 4, 3))
+
+        index = np.array([True])
+        assert_raises(IndexError, arr.__getitem__, index)
+
+        index = np.array([False] * 6)
+        assert_raises(IndexError, arr.__getitem__, index)
+
+        index = np.zeros((4, 4), dtype=bool)
+        assert_raises(IndexError, arr.__getitem__, index)
+
+        assert_raises(IndexError, arr.__getitem__, (slice(None), index))
+
+    def test_boolean_indexing_onedim(self):
+        # Indexing a 2-dimensional array with
+        # boolean array of length one
+        a = np.array([[0., 0., 0.]])
+        b = np.array([True], dtype=bool)
+        assert_equal(a[b], a)
+        # boolean assignment
+        a[b] = 1.
+        assert_equal(a, [[1., 1., 1.]])
+
+    def test_boolean_assignment_value_mismatch(self):
+        # A boolean assignment should fail when the shape of the values
+        # cannot be broadcast to the subscription. (see also gh-3458)
+        a = np.arange(4)
+
+        def f(a, v):
+            a[a > -1] = v
+
+        assert_raises(ValueError, f, a, [])
+        assert_raises(ValueError, f, a, [1, 2, 3])
+        assert_raises(ValueError, f, a[:1], [1, 2, 3])
+
+    def test_boolean_assignment_needs_api(self):
+        # See also gh-7666
+        # This caused a segfault on Python 2 due to the GIL not being
+        # held when the iterator does not need it, but the transfer function
+        # does
+        arr = np.zeros(1000)
+        indx = np.zeros(1000, dtype=bool)
+        indx[:100] = True
+        arr[indx] = np.ones(100, dtype=object)
+
+        expected = np.zeros(1000)
+        expected[:100] = 1
+        assert_array_equal(arr, expected)
+
+    def test_boolean_indexing_twodim(self):
+        # Indexing a 2-dimensional array with
+        # 2-dimensional boolean array
+        a = np.array([[1, 2, 3],
+                      [4, 5, 6],
+                      [7, 8, 9]])
+        b = np.array([[ True, False, True],
+                      [False, True, False],
+                      [ True, False, True]])
+        assert_equal(a[b], [1, 3, 5, 7, 9])
+        assert_equal(a[b[1]], [[4, 5, 6]])
+        assert_equal(a[b[0]], a[b[2]])
+
+        # boolean assignment
+        a[b] = 0
+        assert_equal(a, [[0, 2, 0],
+                         [4, 0, 6],
+                         [0, 8, 0]])
+
+    def test_boolean_indexing_list(self):
+        # Regression test for #13715. It's a use-after-free bug which the
+        # test won't directly catch, but it will show up in valgrind.
+        a = np.array([1, 2, 3])
+        b = [True, False, True]
+        # Two variants of the test because the first takes a fast path
+        assert_equal(a[b], [1, 3])
+        assert_equal(a[None, b], [[1, 3]])
+
+    def test_reverse_strides_and_subspace_bufferinit(self):
+        # This tests that the strides are not reversed for simple and
+        # subspace fancy indexing.
+        a = np.ones(5)
+        b = np.zeros(5, dtype=np.intp)[::-1]
+        c = np.arange(5)[::-1]
+
+        a[b] = c
+        # If the strides are not reversed, the 0 in the arange comes last.
+        assert_equal(a[0], 0)
+
+        # This also tests that the subspace buffer is initialized:
+        a = np.ones((5, 2))
+        c = np.arange(10).reshape(5, 2)[::-1]
+        a[b, :] = c
+        assert_equal(a[0], [0, 1])
+
+    def test_reversed_strides_result_allocation(self):
+        # Test a bug when calculating the output strides for a result array
+        # when the subspace size was 1 (and test other cases as well)
+        a = np.arange(10)[:, None]
+        i = np.arange(10)[::-1]
+        assert_array_equal(a[i], a[i.copy('C')])
+
+        a = np.arange(20).reshape(-1, 2)
+
+    def test_uncontiguous_subspace_assignment(self):
+        # During development there was a bug activating a skip logic
+        # based on ndim instead of size.
+        a = np.full((3, 4, 2), -1)
+        b = np.full((3, 4, 2), -1)
+
+        a[[0, 1]] = np.arange(2 * 4 * 2).reshape(2, 4, 2).T
+        b[[0, 1]] = np.arange(2 * 4 * 2).reshape(2, 4, 2).T.copy()
+
+        assert_equal(a, b)
+
+    def test_too_many_fancy_indices_special_case(self):
+        # Just documents behaviour, this is a small limitation.
+        a = np.ones((1,) * 64)  # 64 is NPY_MAXDIMS
+        assert_raises(IndexError, a.__getitem__, (np.array([0]),) * 64)
+
+    def test_scalar_array_bool(self):
+        # NumPy bools can be used as boolean index (python ones as of yet not)
+        a = np.array(1)
+        assert_equal(a[np.bool(True)], a[np.array(True)])
+        assert_equal(a[np.bool(False)], a[np.array(False)])
+
+        # After deprecating bools as integers:
+        #a = np.array([0,1,2])
+        #assert_equal(a[True, :], a[None, :])
+        #assert_equal(a[:, True], a[:, None])
+        #
+        #assert_(not np.may_share_memory(a, a[True, :]))
+
+    def test_everything_returns_views(self):
+        # Before `...` would return a itself.
+        a = np.arange(5)
+
+        assert_(a is not a[()])
+        assert_(a is not a[...])
+        assert_(a is not a[:])
+
+    def test_broaderrors_indexing(self):
+        a = np.zeros((5, 5))
+        assert_raises(IndexError, a.__getitem__, ([0, 1], [0, 1, 2]))
+        assert_raises(IndexError, a.__setitem__, ([0, 1], [0, 1, 2]), 0)
+
+    def test_trivial_fancy_out_of_bounds(self):
+        a = np.zeros(5)
+        ind = np.ones(20, dtype=np.intp)
+        ind[-1] = 10
+        assert_raises(IndexError, a.__getitem__, ind)
+        assert_raises(IndexError, a.__setitem__, ind, 0)
+        ind = np.ones(20, dtype=np.intp)
+        ind[0] = 11
+        assert_raises(IndexError, a.__getitem__, ind)
+        assert_raises(IndexError, a.__setitem__, ind, 0)
+
+    def test_trivial_fancy_not_possible(self):
+        # Test that the fast path for trivial assignment is not incorrectly
+        # used when the index is not contiguous or 1D, see also gh-11467.
+        a = np.arange(6)
+        idx = np.arange(6, dtype=np.intp).reshape(2, 1, 3)[:, :, 0]
+        assert_array_equal(a[idx], idx)
+
+        # this case must not go into the fast path, note that idx is
+        # a non-contiguous none 1D array here.
+        a[idx] = -1
+        res = np.arange(6)
+        res[0] = -1
+        res[3] = -1
+        assert_array_equal(a, res)
+
+    def test_nonbaseclass_values(self):
+        class SubClass(np.ndarray):
+            def __array_finalize__(self, old):
+                # Have array finalize do funny things
+                self.fill(99)
+
+        a = np.zeros((5, 5))
+        s = a.copy().view(type=SubClass)
+        s.fill(1)
+
+        a[[0, 1, 2, 3, 4], :] = s
+        assert_((a == 1).all())
+
+        # Subspace is last, so transposing might want to finalize
+        a[:, [0, 1, 2, 3, 4]] = s
+        assert_((a == 1).all())
+
+        a.fill(0)
+        a[...] = s
+        assert_((a == 1).all())
+
+    def test_array_like_values(self):
+        # Similar to the above test, but use a memoryview instead
+        a = np.zeros((5, 5))
+        s = np.arange(25, dtype=np.float64).reshape(5, 5)
+
+        a[[0, 1, 2, 3, 4], :] = memoryview(s)
+        assert_array_equal(a, s)
+
+        a[:, [0, 1, 2, 3, 4]] = memoryview(s)
+        assert_array_equal(a, s)
+
+        a[...] = memoryview(s)
+        assert_array_equal(a, s)
+
+    @pytest.mark.parametrize("writeable", [True, False])
+    def test_subclass_writeable(self, writeable):
+        d = np.rec.array([('NGC1001', 11), ('NGC1002', 1.), ('NGC1003', 1.)],
+                         dtype=[('target', 'S20'), ('V_mag', '>f4')])
+        d.flags.writeable = writeable
+        # Advanced indexing results are always writeable:
+        ind = np.array([False, True, True], dtype=bool)
+        assert d[ind].flags.writeable
+        ind = np.array([0, 1])
+        assert d[ind].flags.writeable
+        # Views should be writeable if the original array is:
+        assert d[...].flags.writeable == writeable
+        assert d[0].flags.writeable == writeable
+
+    def test_memory_order(self):
+        # This is not necessary to preserve. Memory layouts for
+        # more complex indices are not as simple.
+        a = np.arange(10)
+        b = np.arange(10).reshape(5, 2).T
+        assert_(a[b].flags.f_contiguous)
+
+        # Takes a different implementation branch:
+        a = a.reshape(-1, 1)
+        assert_(a[b, 0].flags.f_contiguous)
+
+    def test_scalar_return_type(self):
+        # Full scalar indices should return scalars and object
+        # arrays should not call PyArray_Return on their items
+        class Zero:
+            # The most basic valid indexing
+            def __index__(self):
+                return 0
+
+        z = Zero()
+
+        class ArrayLike:
+            # Simple array, should behave like the array
+            def __array__(self, dtype=None, copy=None):
+                return np.array(0)
+
+        a = np.zeros(())
+        assert_(isinstance(a[()], np.float64))
+        a = np.zeros(1)
+        assert_(isinstance(a[z], np.float64))
+        a = np.zeros((1, 1))
+        assert_(isinstance(a[z, np.array(0)], np.float64))
+        assert_(isinstance(a[z, ArrayLike()], np.float64))
+
+        # And object arrays do not call it too often:
+        b = np.array(0)
+        a = np.array(0, dtype=object)
+        a[()] = b
+        assert_(isinstance(a[()], np.ndarray))
+        a = np.array([b, None])
+        assert_(isinstance(a[z], np.ndarray))
+        a = np.array([[b, None]])
+        assert_(isinstance(a[z, np.array(0)], np.ndarray))
+        assert_(isinstance(a[z, ArrayLike()], np.ndarray))
+
+    def test_small_regressions(self):
+        # Reference count of intp for index checks
+        a = np.array([0])
+        if HAS_REFCOUNT:
+            refcount = sys.getrefcount(np.dtype(np.intp))
+        # item setting always checks indices in separate function:
+        a[np.array([0], dtype=np.intp)] = 1
+        a[np.array([0], dtype=np.uint8)] = 1
+        assert_raises(IndexError, a.__setitem__,
+                      np.array([1], dtype=np.intp), 1)
+        assert_raises(IndexError, a.__setitem__,
+                      np.array([1], dtype=np.uint8), 1)
+
+        if HAS_REFCOUNT:
+            assert_equal(sys.getrefcount(np.dtype(np.intp)), refcount)
+
+    def test_unaligned(self):
+        v = (np.zeros(64, dtype=np.int8) + ord('a'))[1:-7]
+        d = v.view(np.dtype("S8"))
+        # unaligned source
+        x = (np.zeros(16, dtype=np.int8) + ord('a'))[1:-7]
+        x = x.view(np.dtype("S8"))
+        x[...] = np.array("b" * 8, dtype="S")
+        b = np.arange(d.size)
+        # trivial
+        assert_equal(d[b], d)
+        d[b] = x
+        # nontrivial
+        # unaligned index array
+        b = np.zeros(d.size + 1).view(np.int8)[1:-(np.intp(0).itemsize - 1)]
+        b = b.view(np.intp)[:d.size]
+        b[...] = np.arange(d.size)
+        assert_equal(d[b.astype(np.int16)], d)
+        d[b.astype(np.int16)] = x
+        # boolean
+        d[b % 2 == 0]
+        d[b % 2 == 0] = x[::2]
+
+    def test_tuple_subclass(self):
+        arr = np.ones((5, 5))
+
+        # A tuple subclass should also be an nd-index
+        class TupleSubclass(tuple):
+            pass
+        index = ([1], [1])
+        index = TupleSubclass(index)
+        assert_(arr[index].shape == (1,))
+        # Unlike the non nd-index:
+        assert_(arr[index,].shape != (1,))
+
+    def test_broken_sequence_not_nd_index(self):
+        # See gh-5063:
+        # If we have an object which claims to be a sequence, but fails
+        # on item getting, this should not be converted to an nd-index (tuple)
+        # If this object happens to be a valid index otherwise, it should work
+        # This object here is very dubious and probably bad though:
+        class SequenceLike:
+            def __index__(self):
+                return 0
+
+            def __len__(self):
+                return 1
+
+            def __getitem__(self, item):
+                raise IndexError('Not possible')
+
+        arr = np.arange(10)
+        assert_array_equal(arr[SequenceLike()], arr[SequenceLike(),])
+
+        # also test that field indexing does not segfault
+        # for a similar reason, by indexing a structured array
+        arr = np.zeros((1,), dtype=[('f1', 'i8'), ('f2', 'i8')])
+        assert_array_equal(arr[SequenceLike()], arr[SequenceLike(),])
+
+    def test_indexing_array_weird_strides(self):
+        # See also gh-6221
+        # the shapes used here come from the issue and create the correct
+        # size for the iterator buffering size.
+        x = np.ones(10)
+        x2 = np.ones((10, 2))
+        ind = np.arange(10)[:, None, None, None]
+        ind = np.broadcast_to(ind, (10, 55, 4, 4))
+
+        # single advanced index case
+        assert_array_equal(x[ind], x[ind.copy()])
+        # higher dimensional advanced index
+        zind = np.zeros(4, dtype=np.intp)
+        assert_array_equal(x2[ind, zind], x2[ind.copy(), zind])
+
+    def test_indexing_array_negative_strides(self):
+        # From gh-8264,
+        # core dumps if negative strides are used in iteration
+        arro = np.zeros((4, 4))
+        arr = arro[::-1, ::-1]
+
+        slices = (slice(None), [0, 1, 2, 3])
+        arr[slices] = 10
+        assert_array_equal(arr, 10.)
+
+    def test_character_assignment(self):
+        # This is an example a function going through CopyObject which
+        # used to have an untested special path for scalars
+        # (the character special dtype case, should be deprecated probably)
+        arr = np.zeros((1, 5), dtype="c")
+        arr[0] = np.str_("asdfg")  # must assign as a sequence
+        assert_array_equal(arr[0], np.array("asdfg", dtype="c"))
+        assert arr[0, 1] == b"s"  # make sure not all were set to "a" for both
+
+    @pytest.mark.parametrize("index",
+            [True, False, np.array([0])])
+    @pytest.mark.parametrize("num", [64, 80])
+    @pytest.mark.parametrize("original_ndim", [1, 64])
+    def test_too_many_advanced_indices(self, index, num, original_ndim):
+        # These are limitations based on the number of arguments we can process.
+        # For `num=32` (and all boolean cases), the result is actually define;
+        # but the use of NpyIter (NPY_MAXARGS) limits it for technical reasons.
+        arr = np.ones((1,) * original_ndim)
+        with pytest.raises(IndexError):
+            arr[(index,) * num]
+        with pytest.raises(IndexError):
+            arr[(index,) * num] = 1.
+
+    def test_nontuple_ndindex(self):
+        a = np.arange(25).reshape((5, 5))
+        assert_equal(a[[0, 1]], np.array([a[0], a[1]]))
+        assert_equal(a[[0, 1], [0, 1]], np.array([0, 6]))
+        assert_raises(IndexError, a.__getitem__, [slice(None)])
+
+
+class TestFieldIndexing:
+    def test_scalar_return_type(self):
+        # Field access on an array should return an array, even if it
+        # is 0-d.
+        a = np.zeros((), [('a', 'f8')])
+        assert_(isinstance(a['a'], np.ndarray))
+        assert_(isinstance(a[['a']], np.ndarray))
+
+
+class TestBroadcastedAssignments:
+    def assign(self, a, ind, val):
+        a[ind] = val
+        return a
+
+    def test_prepending_ones(self):
+        a = np.zeros((3, 2))
+
+        a[...] = np.ones((1, 3, 2))
+        # Fancy with subspace with and without transpose
+        a[[0, 1, 2], :] = np.ones((1, 3, 2))
+        a[:, [0, 1]] = np.ones((1, 3, 2))
+        # Fancy without subspace (with broadcasting)
+        a[[[0], [1], [2]], [0, 1]] = np.ones((1, 3, 2))
+
+    def test_prepend_not_one(self):
+        assign = self.assign
+        s_ = np.s_
+        a = np.zeros(5)
+
+        # Too large and not only ones.
+        assert_raises(ValueError, assign, a, s_[...], np.ones((2, 1)))
+        assert_raises(ValueError, assign, a, s_[[1, 2, 3],], np.ones((2, 1)))
+        assert_raises(ValueError, assign, a, s_[[[1], [2]],], np.ones((2, 2, 1)))
+
+    def test_simple_broadcasting_errors(self):
+        assign = self.assign
+        s_ = np.s_
+        a = np.zeros((5, 1))
+
+        assert_raises(ValueError, assign, a, s_[...], np.zeros((5, 2)))
+        assert_raises(ValueError, assign, a, s_[...], np.zeros((5, 0)))
+        assert_raises(ValueError, assign, a, s_[:, [0]], np.zeros((5, 2)))
+        assert_raises(ValueError, assign, a, s_[:, [0]], np.zeros((5, 0)))
+        assert_raises(ValueError, assign, a, s_[[0], :], np.zeros((2, 1)))
+
+    @pytest.mark.parametrize("index", [
+            (..., [1, 2], slice(None)),
+            ([0, 1], ..., 0),
+            (..., [1, 2], [1, 2])])
+    def test_broadcast_error_reports_correct_shape(self, index):
+        values = np.zeros((100, 100))  # will never broadcast below
+
+        arr = np.zeros((3, 4, 5, 6, 7))
+        # We currently report without any spaces (could be changed)
+        shape_str = str(arr[index].shape).replace(" ", "")
+
+        with pytest.raises(ValueError) as e:
+            arr[index] = values
+
+        assert str(e.value).endswith(shape_str)
+
+    def test_index_is_larger(self):
+        # Simple case of fancy index broadcasting of the index.
+        a = np.zeros((5, 5))
+        a[[[0], [1], [2]], [0, 1, 2]] = [2, 3, 4]
+
+        assert_((a[:3, :3] == [2, 3, 4]).all())
+
+    def test_broadcast_subspace(self):
+        a = np.zeros((100, 100))
+        v = np.arange(100)[:, None]
+        b = np.arange(100)[::-1]
+        a[b] = v
+        assert_((a[::-1] == v).all())
+
+
+class TestSubclasses:
+    def test_basic(self):
+        # Test that indexing in various ways produces SubClass instances,
+        # and that the base is set up correctly: the original subclass
+        # instance for views, and a new ndarray for advanced/boolean indexing
+        # where a copy was made (latter a regression test for gh-11983).
+        class SubClass(np.ndarray):
+            pass
+
+        a = np.arange(5)
+        s = a.view(SubClass)
+        s_slice = s[:3]
+        assert_(type(s_slice) is SubClass)
+        assert_(s_slice.base is s)
+        assert_array_equal(s_slice, a[:3])
+
+        s_fancy = s[[0, 1, 2]]
+        assert_(type(s_fancy) is SubClass)
+        assert_(s_fancy.base is not s)
+        assert_(type(s_fancy.base) is np.ndarray)
+        assert_array_equal(s_fancy, a[[0, 1, 2]])
+        assert_array_equal(s_fancy.base, a[[0, 1, 2]])
+
+        s_bool = s[s > 0]
+        assert_(type(s_bool) is SubClass)
+        assert_(s_bool.base is not s)
+        assert_(type(s_bool.base) is np.ndarray)
+        assert_array_equal(s_bool, a[a > 0])
+        assert_array_equal(s_bool.base, a[a > 0])
+
+    def test_fancy_on_read_only(self):
+        # Test that fancy indexing on read-only SubClass does not make a
+        # read-only copy (gh-14132)
+        class SubClass(np.ndarray):
+            pass
+
+        a = np.arange(5)
+        s = a.view(SubClass)
+        s.flags.writeable = False
+        s_fancy = s[[0, 1, 2]]
+        assert_(s_fancy.flags.writeable)
+
+    def test_finalize_gets_full_info(self):
+        # Array finalize should be called on the filled array.
+        class SubClass(np.ndarray):
+            def __array_finalize__(self, old):
+                self.finalize_status = np.array(self)
+                self.old = old
+
+        s = np.arange(10).view(SubClass)
+        new_s = s[:3]
+        assert_array_equal(new_s.finalize_status, new_s)
+        assert_array_equal(new_s.old, s)
+
+        new_s = s[[0, 1, 2, 3]]
+        assert_array_equal(new_s.finalize_status, new_s)
+        assert_array_equal(new_s.old, s)
+
+        new_s = s[s > 0]
+        assert_array_equal(new_s.finalize_status, new_s)
+        assert_array_equal(new_s.old, s)
+
+
+class TestFancyIndexingCast:
+    def test_boolean_index_cast_assign(self):
+        # Setup the boolean index and float arrays.
+        shape = (8, 63)
+        bool_index = np.zeros(shape).astype(bool)
+        bool_index[0, 1] = True
+        zero_array = np.zeros(shape)
+
+        # Assigning float is fine.
+        zero_array[bool_index] = np.array([1])
+        assert_equal(zero_array[0, 1], 1)
+
+        # Fancy indexing works, although we get a cast warning.
+        pytest.warns(ComplexWarning,
+                     zero_array.__setitem__, ([0], [1]), np.array([2 + 1j]))
+        assert_equal(zero_array[0, 1], 2)  # No complex part
+
+        # Cast complex to float, throwing away the imaginary portion.
+        pytest.warns(ComplexWarning,
+                     zero_array.__setitem__, bool_index, np.array([1j]))
+        assert_equal(zero_array[0, 1], 0)
+
+
+class TestFancyIndexingEquivalence:
+    def test_object_assign(self):
+        # Check that the field and object special case using copyto is active.
+        # The right hand side cannot be converted to an array here.
+        a = np.arange(5, dtype=object)
+        b = a.copy()
+        a[:3] = [1, (1, 2), 3]
+        b[[0, 1, 2]] = [1, (1, 2), 3]
+        assert_array_equal(a, b)
+
+        # test same for subspace fancy indexing
+        b = np.arange(5, dtype=object)[None, :]
+        b[[0], :3] = [[1, (1, 2), 3]]
+        assert_array_equal(a, b[0])
+
+        # Check that swapping of axes works.
+        # There was a bug that made the later assignment throw a ValueError
+        # do to an incorrectly transposed temporary right hand side (gh-5714)
+        b = b.T
+        b[:3, [0]] = [[1], [(1, 2)], [3]]
+        assert_array_equal(a, b[:, 0])
+
+        # Another test for the memory order of the subspace
+        arr = np.ones((3, 4, 5), dtype=object)
+        # Equivalent slicing assignment for comparison
+        cmp_arr = arr.copy()
+        cmp_arr[:1, ...] = [[[1], [2], [3], [4]]]
+        arr[[0], ...] = [[[1], [2], [3], [4]]]
+        assert_array_equal(arr, cmp_arr)
+        arr = arr.copy('F')
+        arr[[0], ...] = [[[1], [2], [3], [4]]]
+        assert_array_equal(arr, cmp_arr)
+
+    def test_cast_equivalence(self):
+        # Yes, normal slicing uses unsafe casting.
+        a = np.arange(5)
+        b = a.copy()
+
+        a[:3] = np.array(['2', '-3', '-1'])
+        b[[0, 2, 1]] = np.array(['2', '-1', '-3'])
+        assert_array_equal(a, b)
+
+        # test the same for subspace fancy indexing
+        b = np.arange(5)[None, :]
+        b[[0], :3] = np.array([['2', '-3', '-1']])
+        assert_array_equal(a, b[0])
+
+
+class TestMultiIndexingAutomated:
+    """
+    These tests use code to mimic the C-Code indexing for selection.
+
+    NOTE:
+
+        * This still lacks tests for complex item setting.
+        * If you change behavior of indexing, you might want to modify
+          these tests to try more combinations.
+        * Behavior was written to match numpy version 1.8. (though a
+          first version matched 1.7.)
+        * Only tuple indices are supported by the mimicking code.
+          (and tested as of writing this)
+        * Error types should match most of the time as long as there
+          is only one error. For multiple errors, what gets raised
+          will usually not be the same one. They are *not* tested.
+
+    Update 2016-11-30: It is probably not worth maintaining this test
+    indefinitely and it can be dropped if maintenance becomes a burden.
+
+    """
+
+    def _create_array(self):
+        return np.arange(np.prod([3, 1, 5, 6])).reshape(3, 1, 5, 6)
+
+    def _create_complex_indices(self):
+        return ['skip', Ellipsis,
+            0,
+            # Boolean indices, up to 3-d for some special cases of eating up
+            # dimensions, also need to test all False
+            np.array([True, False, False]),
+            np.array([[True, False], [False, True]]),
+            np.array([[[False, False], [False, False]]]),
+            # Some slices:
+            slice(-5, 5, 2),
+            slice(1, 1, 100),
+            slice(4, -1, -2),
+            slice(None, None, -3),
+            # Some Fancy indexes:
+            np.empty((0, 1, 1), dtype=np.intp),  # empty and can be broadcast
+            np.array([0, 1, -2]),
+            np.array([[2], [0], [1]]),
+            np.array([[0, -1], [0, 1]], dtype=np.dtype('intp').newbyteorder()),
+            np.array([2, -1], dtype=np.int8),
+            np.zeros([1] * 31, dtype=int),  # trigger too large array.
+            np.array([0., 1.])]  # invalid datatype
+
+    def _get_multi_index(self, arr, indices):
+        """Mimic multi dimensional indexing.
+
+        Parameters
+        ----------
+        arr : ndarray
+            Array to be indexed.
+        indices : tuple of index objects
+
+        Returns
+        -------
+        out : ndarray
+            An array equivalent to the indexing operation (but always a copy).
+            `arr[indices]` should be identical.
+        no_copy : bool
+            Whether the indexing operation requires a copy. If this is `True`,
+            `np.may_share_memory(arr, arr[indices])` should be `True` (with
+            some exceptions for scalars and possibly 0-d arrays).
+
+        Notes
+        -----
+        While the function may mostly match the errors of normal indexing this
+        is generally not the case.
+        """
+        in_indices = list(indices)
+        indices = []
+        # if False, this is a fancy or boolean index
+        no_copy = True
+        # number of fancy/scalar indexes that are not consecutive
+        num_fancy = 0
+        # number of dimensions indexed by a "fancy" index
+        fancy_dim = 0
+        # NOTE: This is a funny twist (and probably OK to change).
+        # The boolean array has illegal indexes, but this is
+        # allowed if the broadcast fancy-indices are 0-sized.
+        # This variable is to catch that case.
+        error_unless_broadcast_to_empty = False
+
+        # We need to handle Ellipsis and make arrays from indices, also
+        # check if this is fancy indexing (set no_copy).
+        ndim = 0
+        ellipsis_pos = None  # define here mostly to replace all but first.
+        for i, indx in enumerate(in_indices):
+            if indx is None:
+                continue
+            if isinstance(indx, np.ndarray) and indx.dtype == bool:
+                no_copy = False
+                if indx.ndim == 0:
+                    raise IndexError
+                # boolean indices can have higher dimensions
+                ndim += indx.ndim
+                fancy_dim += indx.ndim
+                continue
+            if indx is Ellipsis:
+                if ellipsis_pos is None:
+                    ellipsis_pos = i
+                    continue  # do not increment ndim counter
+                raise IndexError
+            if isinstance(indx, slice):
+                ndim += 1
+                continue
+            if not isinstance(indx, np.ndarray):
+                # This could be open for changes in numpy.
+                # numpy should maybe raise an error if casting to intp
+                # is not safe. It rejects np.array([1., 2.]) but not
+                # [1., 2.] as index (same for ie. np.take).
+                # (Note the importance of empty lists if changing this here)
+                try:
+                    indx = np.array(indx, dtype=np.intp)
+                except ValueError:
+                    raise IndexError
+                in_indices[i] = indx
+            elif indx.dtype.kind not in 'bi':
+                raise IndexError('arrays used as indices must be of '
+                                 'integer (or boolean) type')
+            if indx.ndim != 0:
+                no_copy = False
+            ndim += 1
+            fancy_dim += 1
+
+        if arr.ndim - ndim < 0:
+            # we can't take more dimensions then we have, not even for 0-d
+            # arrays.  since a[()] makes sense, but not a[(),]. We will
+            # raise an error later on, unless a broadcasting error occurs
+            # first.
+            raise IndexError
+
+        if ndim == 0 and None not in in_indices:
+            # Well we have no indexes or one Ellipsis. This is legal.
+            return arr.copy(), no_copy
+
+        if ellipsis_pos is not None:
+            in_indices[ellipsis_pos:ellipsis_pos + 1] = ([slice(None, None)] *
+                                                       (arr.ndim - ndim))
+
+        for ax, indx in enumerate(in_indices):
+            if isinstance(indx, slice):
+                # convert to an index array
+                indx = np.arange(*indx.indices(arr.shape[ax]))
+                indices.append(['s', indx])
+                continue
+            elif indx is None:
+                # this is like taking a slice with one element from a new axis:
+                indices.append(['n', np.array([0], dtype=np.intp)])
+                arr = arr.reshape(arr.shape[:ax] + (1,) + arr.shape[ax:])
+                continue
+            if isinstance(indx, np.ndarray) and indx.dtype == bool:
+                if indx.shape != arr.shape[ax:ax + indx.ndim]:
+                    raise IndexError
+
+                try:
+                    flat_indx = np.ravel_multi_index(np.nonzero(indx),
+                                    arr.shape[ax:ax + indx.ndim], mode='raise')
+                except Exception:
+                    error_unless_broadcast_to_empty = True
+                    # fill with 0s instead, and raise error later
+                    flat_indx = np.array([0] * indx.sum(), dtype=np.intp)
+                # concatenate axis into a single one:
+                if indx.ndim != 0:
+                    arr = arr.reshape(arr.shape[:ax]
+                                  + (np.prod(arr.shape[ax:ax + indx.ndim]),)
+                                  + arr.shape[ax + indx.ndim:])
+                    indx = flat_indx
+                else:
+                    # This could be changed, a 0-d boolean index can
+                    # make sense (even outside the 0-d indexed array case)
+                    # Note that originally this is could be interpreted as
+                    # integer in the full integer special case.
+                    raise IndexError
+            # If the index is a singleton, the bounds check is done
+            # before the broadcasting. This used to be different in <1.9
+            elif indx.ndim == 0 and not (
+                -arr.shape[ax] <= indx < arr.shape[ax]
+            ):
+                raise IndexError
+            if indx.ndim == 0:
+                # The index is a scalar. This used to be two fold, but if
+                # fancy indexing was active, the check was done later,
+                # possibly after broadcasting it away (1.7. or earlier).
+                # Now it is always done.
+                if indx >= arr.shape[ax] or indx < - arr.shape[ax]:
+                    raise IndexError
+            if (len(indices) > 0 and
+                    indices[-1][0] == 'f' and
+                    ax != ellipsis_pos):
+                # NOTE: There could still have been a 0-sized Ellipsis
+                # between them. Checked that with ellipsis_pos.
+                indices[-1].append(indx)
+            else:
+                # We have a fancy index that is not after an existing one.
+                # NOTE: A 0-d array triggers this as well, while one may
+                # expect it to not trigger it, since a scalar would not be
+                # considered fancy indexing.
+                num_fancy += 1
+                indices.append(['f', indx])
+
+        if num_fancy > 1 and not no_copy:
+            # We have to flush the fancy indexes left
+            new_indices = indices[:]
+            axes = list(range(arr.ndim))
+            fancy_axes = []
+            new_indices.insert(0, ['f'])
+            ni = 0
+            ai = 0
+            for indx in indices:
+                ni += 1
+                if indx[0] == 'f':
+                    new_indices[0].extend(indx[1:])
+                    del new_indices[ni]
+                    ni -= 1
+                    for ax in range(ai, ai + len(indx[1:])):
+                        fancy_axes.append(ax)
+                        axes.remove(ax)
+                ai += len(indx) - 1  # axis we are at
+            indices = new_indices
+            # and now we need to transpose arr:
+            arr = arr.transpose(*(fancy_axes + axes))
+
+        # We only have one 'f' index now and arr is transposed accordingly.
+        # Now handle newaxis by reshaping...
+        ax = 0
+        for indx in indices:
+            if indx[0] == 'f':
+                if len(indx) == 1:
+                    continue
+                # First of all, reshape arr to combine fancy axes into one:
+                orig_shape = arr.shape
+                orig_slice = orig_shape[ax:ax + len(indx[1:])]
+                arr = arr.reshape(arr.shape[:ax]
+                                    + (np.prod(orig_slice).astype(int),)
+                                    + arr.shape[ax + len(indx[1:]):])
+
+                # Check if broadcasting works
+                res = np.broadcast(*indx[1:])
+                # unfortunately the indices might be out of bounds. So check
+                # that first, and use mode='wrap' then. However only if
+                # there are any indices...
+                if res.size != 0:
+                    if error_unless_broadcast_to_empty:
+                        raise IndexError
+                    for _indx, _size in zip(indx[1:], orig_slice):
+                        if _indx.size == 0:
+                            continue
+                        if np.any(_indx >= _size) or np.any(_indx < -_size):
+                            raise IndexError
+                if len(indx[1:]) == len(orig_slice):
+                    if np.prod(orig_slice) == 0:
+                        # Work around for a crash or IndexError with 'wrap'
+                        # in some 0-sized cases.
+                        try:
+                            mi = np.ravel_multi_index(indx[1:], orig_slice,
+                                                      mode='raise')
+                        except Exception:
+                            # This happens with 0-sized orig_slice (sometimes?)
+                            # here it is a ValueError, but indexing gives a:
+                            raise IndexError('invalid index into 0-sized')
+                    else:
+                        mi = np.ravel_multi_index(indx[1:], orig_slice,
+                                                  mode='wrap')
+                else:
+                    # Maybe never happens...
+                    raise ValueError
+                arr = arr.take(mi.ravel(), axis=ax)
+                try:
+                    arr = arr.reshape(arr.shape[:ax]
+                                        + mi.shape
+                                        + arr.shape[ax + 1:])
+                except ValueError:
+                    # too many dimensions, probably
+                    raise IndexError
+                ax += mi.ndim
+                continue
+
+            # If we are here, we have a 1D array for take:
+            arr = arr.take(indx[1], axis=ax)
+            ax += 1
+
+        return arr, no_copy
+
+    def _check_multi_index(self, arr, index):
+        """Check a multi index item getting and simple setting.
+
+        Parameters
+        ----------
+        arr : ndarray
+            Array to be indexed, must be a reshaped arange.
+        index : tuple of indexing objects
+            Index being tested.
+        """
+        # Test item getting
+        try:
+            mimic_get, no_copy = self._get_multi_index(arr, index)
+        except Exception as e:
+            if HAS_REFCOUNT:
+                prev_refcount = sys.getrefcount(arr)
+            assert_raises(type(e), arr.__getitem__, index)
+            assert_raises(type(e), arr.__setitem__, index, 0)
+            if HAS_REFCOUNT:
+                assert_equal(prev_refcount, sys.getrefcount(arr))
+            return
+
+        self._compare_index_result(arr, index, mimic_get, no_copy)
+
+    def _check_single_index(self, arr, index):
+        """Check a single index item getting and simple setting.
+
+        Parameters
+        ----------
+        arr : ndarray
+            Array to be indexed, must be an arange.
+        index : indexing object
+            Index being tested. Must be a single index and not a tuple
+            of indexing objects (see also `_check_multi_index`).
+        """
+        try:
+            mimic_get, no_copy = self._get_multi_index(arr, (index,))
+        except Exception as e:
+            if HAS_REFCOUNT:
+                prev_refcount = sys.getrefcount(arr)
+            assert_raises(type(e), arr.__getitem__, index)
+            assert_raises(type(e), arr.__setitem__, index, 0)
+            if HAS_REFCOUNT:
+                assert_equal(prev_refcount, sys.getrefcount(arr))
+            return
+
+        self._compare_index_result(arr, index, mimic_get, no_copy)
+
+    def _compare_index_result(self, arr, index, mimic_get, no_copy):
+        """Compare mimicked result to indexing result.
+        """
+        arr = arr.copy()
+        if HAS_REFCOUNT:
+            startcount = sys.getrefcount(arr)
+        indexed_arr = arr[index]
+        assert_array_equal(indexed_arr, mimic_get)
+        # Check if we got a view, unless its a 0-sized or 0-d array.
+        # (then its not a view, and that does not matter)
+        if indexed_arr.size != 0 and indexed_arr.ndim != 0:
+            assert_(np.may_share_memory(indexed_arr, arr) == no_copy)
+            # Check reference count of the original array
+            if HAS_REFCOUNT:
+                if no_copy:
+                    # refcount increases by one:
+                    assert_equal(sys.getrefcount(arr), startcount + 1)
+                else:
+                    assert_equal(sys.getrefcount(arr), startcount)
+
+        # Test non-broadcast setitem:
+        b = arr.copy()
+        b[index] = mimic_get + 1000
+        if b.size == 0:
+            return  # nothing to compare here...
+        if no_copy and indexed_arr.ndim != 0:
+            # change indexed_arr in-place to manipulate original:
+            indexed_arr += 1000
+            assert_array_equal(arr, b)
+            return
+        # Use the fact that the array is originally an arange:
+        arr.flat[indexed_arr.ravel()] += 1000
+        assert_array_equal(arr, b)
+
+    def test_boolean(self):
+        a = np.array(5)
+        assert_equal(a[np.array(True)], 5)
+        a[np.array(True)] = 1
+        assert_equal(a, 1)
+        # NOTE: This is different from normal broadcasting, as
+        # arr[boolean_array] works like in a multi index. Which means
+        # it is aligned to the left. This is probably correct for
+        # consistency with arr[boolean_array,] also no broadcasting
+        # is done at all
+        a = self._create_array()
+        self._check_multi_index(
+            a, (np.zeros_like(a, dtype=bool),))
+        self._check_multi_index(
+            a, (np.zeros_like(a, dtype=bool)[..., 0],))
+        self._check_multi_index(
+            a, (np.zeros_like(a, dtype=bool)[None, ...],))
+
+    def test_multidim(self):
+        # Automatically test combinations with complex indexes on 2nd (or 1st)
+        # spot and the simple ones in one other spot.
+        a = self._create_array()
+        b = np.empty((3, 0, 5, 6))
+        complex_indices = self._create_complex_indices()
+        simple_indices = [Ellipsis, None, -1, [1], np.array([True]), 'skip']
+        fill_indices = [slice(None, None), 0]
+
+        with warnings.catch_warnings():
+            # This is so that np.array(True) is not accepted in a full integer
+            # index, when running the file separately.
+            warnings.filterwarnings('error', '', DeprecationWarning)
+            warnings.filterwarnings('error', '', VisibleDeprecationWarning)
+
+            def isskip(idx):
+                return isinstance(idx, str) and idx == "skip"
+
+            for simple_pos in [0, 2, 3]:
+                tocheck = [fill_indices, complex_indices,
+                           fill_indices, fill_indices]
+                tocheck[simple_pos] = simple_indices
+                for index in product(*tocheck):
+                    index = tuple(i for i in index if not isskip(i))
+                    self._check_multi_index(a, index)
+                    self._check_multi_index(b, index)
+
+        # Check very simple item getting:
+        self._check_multi_index(a, (0, 0, 0, 0))
+        self._check_multi_index(b, (0, 0, 0, 0))
+        # Also check (simple cases of) too many indices:
+        assert_raises(IndexError, a.__getitem__, (0, 0, 0, 0, 0))
+        assert_raises(IndexError, a.__setitem__, (0, 0, 0, 0, 0), 0)
+        assert_raises(IndexError, a.__getitem__, (0, 0, [1], 0, 0))
+        assert_raises(IndexError, a.__setitem__, (0, 0, [1], 0, 0), 0)
+
+    def test_1d(self):
+        a = np.arange(10)
+        complex_indices = self._create_complex_indices()
+        for index in complex_indices:
+            self._check_single_index(a, index)
+
+
+class TestFloatNonIntegerArgument:
+    """
+    These test that ``TypeError`` is raised when you try to use
+    non-integers as arguments to for indexing and slicing e.g. ``a[0.0:5]``
+    and ``a[0.5]``, or other functions like ``array.reshape(1., -1)``.
+
+    """
+    def test_valid_indexing(self):
+        # These should raise no errors.
+        a = np.array([[[5]]])
+
+        a[np.array([0])]
+        a[[0, 0]]
+        a[:, [0, 0]]
+        a[:, 0, :]
+        a[:, :, :]
+
+    def test_valid_slicing(self):
+        # These should raise no errors.
+        a = np.array([[[5]]])
+
+        a[::]
+        a[0:]
+        a[:2]
+        a[0:2]
+        a[::2]
+        a[1::2]
+        a[:2:2]
+        a[1:2:2]
+
+    def test_non_integer_argument_errors(self):
+        a = np.array([[5]])
+
+        assert_raises(TypeError, np.reshape, a, (1., 1., -1))
+        assert_raises(TypeError, np.reshape, a, (np.array(1.), -1))
+        assert_raises(TypeError, np.take, a, [0], 1.)
+        assert_raises(TypeError, np.take, a, [0], np.float64(1.))
+
+    def test_non_integer_sequence_multiplication(self):
+        # NumPy scalar sequence multiply should not work with non-integers
+        def mult(a, b):
+            return a * b
+
+        assert_raises(TypeError, mult, [1], np.float64(3))
+        # following should be OK
+        mult([1], np.int_(3))
+
+    def test_reduce_axis_float_index(self):
+        d = np.zeros((3, 3, 3))
+        assert_raises(TypeError, np.min, d, 0.5)
+        assert_raises(TypeError, np.min, d, (0.5, 1))
+        assert_raises(TypeError, np.min, d, (1, 2.2))
+        assert_raises(TypeError, np.min, d, (.2, 1.2))
+
+
+class TestBooleanIndexing:
+    # Using a boolean as integer argument/indexing is an error.
+    def test_bool_as_int_argument_errors(self):
+        a = np.array([[[1]]])
+
+        assert_raises(TypeError, np.reshape, a, (True, -1))
+        assert_raises(TypeError, np.reshape, a, (np.bool(True), -1))
+        # Note that operator.index(np.array(True)) does not work, a boolean
+        # array is thus also deprecated, but not with the same message:
+        assert_raises(TypeError, operator.index, np.array(True))
+        assert_raises(TypeError, operator.index, np.True_)
+        assert_raises(TypeError, np.take, args=(a, [0], False))
+
+    def test_boolean_indexing_weirdness(self):
+        # Weird boolean indexing things
+        a = np.ones((2, 3, 4))
+        assert a[False, True, ...].shape == (0, 2, 3, 4)
+        assert a[True, [0, 1], True, True, [1], [[2]]].shape == (1, 2)
+        assert_raises(IndexError, lambda: a[False, [0, 1], ...])
+
+    def test_boolean_indexing_fast_path(self):
+        # These used to either give the wrong error, or incorrectly give no
+        # error.
+        a = np.ones((3, 3))
+
+        # This used to incorrectly work (and give an array of shape (0,))
+        idx1 = np.array([[False] * 9])
+        assert_raises_regex(IndexError,
+            "boolean index did not match indexed array along axis 0; "
+            "size of axis is 3 but size of corresponding boolean axis is 1",
+            lambda: a[idx1])
+
+        # This used to incorrectly give a ValueError: operands could not be
+        # broadcast together
+        idx2 = np.array([[False] * 8 + [True]])
+        assert_raises_regex(IndexError,
+            "boolean index did not match indexed array along axis 0; "
+            "size of axis is 3 but size of corresponding boolean axis is 1",
+            lambda: a[idx2])
+
+        # This is the same as it used to be. The above two should work like this.
+        idx3 = np.array([[False] * 10])
+        assert_raises_regex(IndexError,
+            "boolean index did not match indexed array along axis 0; "
+            "size of axis is 3 but size of corresponding boolean axis is 1",
+            lambda: a[idx3])
+
+        # This used to give ValueError: non-broadcastable operand
+        a = np.ones((1, 1, 2))
+        idx = np.array([[[True], [False]]])
+        assert_raises_regex(IndexError,
+            "boolean index did not match indexed array along axis 1; "
+            "size of axis is 1 but size of corresponding boolean axis is 2",
+            lambda: a[idx])
+
+
+class TestArrayToIndexDeprecation:
+    """Creating an index from array not 0-D is an error.
+
+    """
+    def test_array_to_index_error(self):
+        # so no exception is expected. The raising is effectively tested above.
+        a = np.array([[[1]]])
+
+        assert_raises(TypeError, operator.index, np.array([1]))
+        assert_raises(TypeError, np.reshape, a, (a, -1))
+        assert_raises(TypeError, np.take, a, [0], a)
+
+
+class TestNonIntegerArrayLike:
+    """Tests that array_likes only valid if can safely cast to integer.
+
+    For instance, lists give IndexError when they cannot be safely cast to
+    an integer.
+
+    """
+    def test_basic(self):
+        a = np.arange(10)
+
+        assert_raises(IndexError, a.__getitem__, [0.5, 1.5])
+        assert_raises(IndexError, a.__getitem__, (['1', '2'],))
+
+        # The following is valid
+        a.__getitem__([])
+
+
+class TestMultipleEllipsisError:
+    """An index can only have a single ellipsis.
+
+    """
+    def test_basic(self):
+        a = np.arange(10)
+        assert_raises(IndexError, lambda: a[..., ...])
+        assert_raises(IndexError, a.__getitem__, ((Ellipsis,) * 2,))
+        assert_raises(IndexError, a.__getitem__, ((Ellipsis,) * 3,))
+
+
+class TestCApiAccess:
+    def test_getitem(self):
+        subscript = functools.partial(array_indexing, 0)
+
+        # 0-d arrays don't work:
+        assert_raises(IndexError, subscript, np.ones(()), 0)
+        # Out of bound values:
+        assert_raises(IndexError, subscript, np.ones(10), 11)
+        assert_raises(IndexError, subscript, np.ones(10), -11)
+        assert_raises(IndexError, subscript, np.ones((10, 10)), 11)
+        assert_raises(IndexError, subscript, np.ones((10, 10)), -11)
+
+        a = np.arange(10)
+        assert_array_equal(a[4], subscript(a, 4))
+        a = a.reshape(5, 2)
+        assert_array_equal(a[-4], subscript(a, -4))
+
+    def test_setitem(self):
+        assign = functools.partial(array_indexing, 1)
+
+        # Deletion is impossible:
+        assert_raises(ValueError, assign, np.ones(10), 0)
+        # 0-d arrays don't work:
+        assert_raises(IndexError, assign, np.ones(()), 0, 0)
+        # Out of bound values:
+        assert_raises(IndexError, assign, np.ones(10), 11, 0)
+        assert_raises(IndexError, assign, np.ones(10), -11, 0)
+        assert_raises(IndexError, assign, np.ones((10, 10)), 11, 0)
+        assert_raises(IndexError, assign, np.ones((10, 10)), -11, 0)
+
+        a = np.arange(10)
+        assign(a, 4, 10)
+        assert_(a[4] == 10)
+
+        a = a.reshape(5, 2)
+        assign(a, 4, 10)
+        assert_array_equal(a[-1], [10, 10])
+
+
+class TestFlatiterIndexing:
+    def test_flatiter_indexing_single_integer(self):
+        a = np.arange(9).reshape((3, 3))
+        assert_array_equal(a.flat[0], 0)
+        assert_array_equal(a.flat[4], 4)
+        assert_array_equal(a.flat[-1], 8)
+
+        with pytest.raises(IndexError, match="index 9 is out of bounds"):
+            a.flat[9]
+
+    def test_flatiter_indexing_slice(self):
+        a = np.arange(9).reshape((3, 3))
+        assert_array_equal(a.flat[:], np.arange(9))
+        assert_array_equal(a.flat[:5], np.arange(5))
+        assert_array_equal(a.flat[5:10], np.arange(5, 9))
+        assert_array_equal(a.flat[::2], np.arange(0, 9, 2))
+        assert_array_equal(a.flat[::-1], np.arange(8, -1, -1))
+        assert_array_equal(a.flat[10:5], np.array([]))
+
+        assert_array_equal(a.flat[()], np.arange(9))
+        assert_array_equal(a.flat[...], np.arange(9))
+
+    def test_flatiter_indexing_boolean(self):
+        a = np.arange(9).reshape((3, 3))
+
+        with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"):
+            assert_array_equal(a.flat[True], 0)
+        with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"):
+            assert_array_equal(a.flat[False], np.array([]))
+
+        mask = np.zeros(len(a.flat), dtype=bool)
+        mask[::2] = True
+        assert_array_equal(a.flat[mask], np.arange(0, 9, 2))
+
+        wrong_mask = np.zeros(len(a.flat) + 1, dtype=bool)
+        with pytest.raises(IndexError,
+                           match="boolean index did not match indexed flat iterator"):
+            a.flat[wrong_mask]
+
+    def test_flatiter_indexing_fancy(self):
+        a = np.arange(9).reshape((3, 3))
+
+        indices = np.array([1, 3, 5])
+        assert_array_equal(a.flat[indices], indices)
+
+        assert_array_equal(a.flat[[-1, -2]], np.array([8, 7]))
+
+        indices_2d = np.array([[1, 2], [3, 4]])
+        assert_array_equal(a.flat[indices_2d], indices_2d)
+
+        assert_array_equal(a.flat[[True, 1]], np.array([1, 1]))
+
+        assert_array_equal(a.flat[[]], np.array([], dtype=a.dtype))
+
+        with pytest.raises(IndexError,
+                           match="boolean indices for iterators are not supported"):
+            a.flat[[True, True]]
+
+        a = np.arange(3)
+        with pytest.raises(IndexError,
+                           match="boolean indices for iterators are not supported"):
+            a.flat[[True, False, True]]
+        assert_array_equal(a.flat[np.asarray([True, False, True])], np.array([0, 2]))
+
+    def test_flatiter_indexing_not_supported_newaxis_mutlidimensional_float(self):
+        a = np.arange(9).reshape((3, 3))
+        with pytest.raises(IndexError,
+                           match=r"only integers, slices \(`:`\), "
+                                 r"ellipsis \(`\.\.\.`\) and "
+                                 r"integer or boolean arrays are valid indices"):
+            a.flat[None]
+
+        with pytest.raises(IndexError,
+                           match=r"too many indices for flat iterator: flat iterator "
+                                 r"is 1-dimensional, but 2 were indexed"):
+            a.flat[1, 2]
+
+        with pytest.warns(DeprecationWarning,
+                          match="Invalid non-array indices for iterator objects are "
+                                "deprecated"):
+            assert_array_equal(a.flat[[1.0, 2.0]], np.array([1, 2]))
+
+    def test_flatiter_assign_single_integer(self):
+        a = np.arange(9).reshape((3, 3))
+
+        a.flat[0] = 10
+        assert_array_equal(a, np.array([[10, 1, 2], [3, 4, 5], [6, 7, 8]]))
+
+        a.flat[4] = 20
+        assert_array_equal(a, np.array([[10, 1, 2], [3, 20, 5], [6, 7, 8]]))
+
+        a.flat[-1] = 30
+        assert_array_equal(a, np.array([[10, 1, 2], [3, 20, 5], [6, 7, 30]]))
+
+        with pytest.raises(IndexError, match="index 9 is out of bounds"):
+            a.flat[9] = 40
+
+    def test_flatiter_indexing_slice_assign(self):
+        a = np.arange(9).reshape((3, 3))
+        a.flat[:] = 10
+        assert_array_equal(a, np.full((3, 3), 10))
+
+        a = np.arange(9).reshape((3, 3))
+        a.flat[:5] = 20
+        assert_array_equal(a, np.array([[20, 20, 20], [20, 20, 5], [6, 7, 8]]))
+
+        a = np.arange(9).reshape((3, 3))
+        a.flat[5:10] = 30
+        assert_array_equal(a, np.array([[0, 1, 2], [3, 4, 30], [30, 30, 30]]))
+
+        a = np.arange(9).reshape((3, 3))
+        a.flat[::2] = 40
+        assert_array_equal(a, np.array([[40, 1, 40], [3, 40, 5], [40, 7, 40]]))
+
+        a = np.arange(9).reshape((3, 3))
+        a.flat[::-1] = 50
+        assert_array_equal(a, np.full((3, 3), 50))
+
+        a = np.arange(9).reshape((3, 3))
+        a.flat[10:5] = 60
+        assert_array_equal(a, np.arange(9).reshape((3, 3)))
+
+        a = np.arange(9).reshape((3, 3))
+        with pytest.raises(IndexError,
+                           match="Assigning to a flat iterator with a 0-D index"):
+            a.flat[()] = 70
+
+        a = np.arange(9).reshape((3, 3))
+        a.flat[...] = 80
+        assert_array_equal(a, np.full((3, 3), 80))
+
+    def test_flatiter_indexing_boolean_assign(self):
+        a = np.arange(9).reshape((3, 3))
+        with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"):
+            a.flat[True] = 10
+        assert_array_equal(a, np.array([[10, 1, 2], [3, 4, 5], [6, 7, 8]]))
+
+        a = np.arange(9).reshape((3, 3))
+        with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"):
+            a.flat[False] = 20
+        assert_array_equal(a, np.arange(9).reshape((3, 3)))
+
+        a = np.arange(9).reshape((3, 3))
+        mask = np.zeros(len(a.flat), dtype=bool)
+        mask[::2] = True
+        a.flat[mask] = 30
+        assert_array_equal(a, np.array([[30, 1, 30], [3, 30, 5], [30, 7, 30]]))
+
+        wrong_mask = np.zeros(len(a.flat) + 1, dtype=bool)
+        with pytest.raises(IndexError,
+                           match="boolean index did not match indexed flat iterator"):
+            a.flat[wrong_mask] = 40
+
+    def test_flatiter_indexing_fancy_assign(self):
+        a = np.arange(9).reshape((3, 3))
+        indices = np.array([1, 3, 5])
+        a.flat[indices] = 10
+        assert_array_equal(a, np.array([[0, 10, 2], [10, 4, 10], [6, 7, 8]]))
+
+        a.flat[[-1, -2]] = 20
+        assert_array_equal(a, np.array([[0, 10, 2], [10, 4, 10], [6, 20, 20]]))
+
+        a = np.arange(9).reshape((3, 3))
+        indices_2d = np.array([[1, 2], [3, 4]])
+        a.flat[indices_2d] = 30
+        assert_array_equal(a, np.array([[0, 30, 30], [30, 30, 5], [6, 7, 8]]))
+
+        a.flat[[True, 1]] = 40
+        assert_array_equal(a, np.array([[0, 40, 30], [30, 30, 5], [6, 7, 8]]))
+
+        with pytest.raises(IndexError,
+                           match="boolean indices for iterators are not supported"):
+            a.flat[[True, True]] = 50
+
+        a = np.arange(3)
+        with pytest.raises(IndexError,
+                           match="boolean indices for iterators are not supported"):
+            a.flat[[True, False, True]] = 20
+        a.flat[np.asarray([True, False, True])] = 20
+        assert_array_equal(a, np.array([20, 1, 20]))
+
+    def test_flatiter_indexing_fancy_int16_dtype(self):
+        a = np.arange(9).reshape((3, 3))
+        indices = np.array([1, 3, 5], dtype=np.int16)
+        assert_array_equal(a.flat[indices], np.array([1, 3, 5]))
+
+        a.flat[indices] = 10
+        assert_array_equal(a, np.array([[0, 10, 2], [10, 4, 10], [6, 7, 8]]))
+
+    def test_flatiter_indexing_not_supported_newaxis_mutlid_float_assign(self):
+        a = np.arange(9).reshape((3, 3))
+        with pytest.raises(IndexError,
+                           match=r"only integers, slices \(`:`\), "
+                                 r"ellipsis \(`\.\.\.`\) and "
+                                 r"integer or boolean arrays are valid indices"):
+            a.flat[None] = 10
+
+        a.flat[[1, 2]] = 10
+        assert_array_equal(a, np.array([[0, 10, 10], [3, 4, 5], [6, 7, 8]]))
+
+        with pytest.warns(DeprecationWarning,
+                          match="Invalid non-array indices for iterator objects are "
+                                "deprecated"):
+            a.flat[[1.0, 2.0]] = 20
+        assert_array_equal(a, np.array([[0, 20, 20], [3, 4, 5], [6, 7, 8]]))
+
+    def test_flat_index_on_flatiter(self):
+        a = np.arange(9).reshape((3, 3))
+        b = np.array([0, 5, 6])
+        assert_equal(a.flat[b.flat], np.array([0, 5, 6]))
+
+    def test_empty_string_flat_index_on_flatiter(self):
+        a = np.arange(9).reshape((3, 3))
+        b = np.array([], dtype="S")
+        # This is arguably incorrect, and should be removed (ideally with
+        # deprecation).  But it matches the array path and comes from not
+        # distinguishing `arr[np.array([]).flat]` and `arr[[]]` and the latter
+        # must pass.
+        assert_equal(a.flat[b.flat], np.array([]))
+
+    def test_nonempty_string_flat_index_on_flatiter(self):
+        a = np.arange(9).reshape((3, 3))
+        b = np.array(["a"], dtype="S")
+        with pytest.raises(IndexError,
+                match=r"only integers, slices \(`:`\), ellipsis \(`\.\.\.`\) "
+                      r"and integer or boolean arrays are valid indices"):
+            a.flat[b.flat]
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+@pytest.mark.parametrize("methodname", ["__array__", "copy"])
+def test_flatiter_method_signatures(methodname: str):
+    method = getattr(np.flatiter, methodname)
+    assert callable(method)
+
+    try:
+        sig = inspect.signature(method)
+    except ValueError as e:
+        pytest.fail(f"Could not get signature for np.flatiter.{methodname}: {e}")
+
+    assert "self" in sig.parameters
+    assert sig.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_item_selection.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_item_selection.py
new file mode 100644
index 0000000000000000000000000000000000000000..3dfc814f34686f2bed3ae6b9428680a089a0d81c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_item_selection.py
@@ -0,0 +1,167 @@
+import sys
+
+import pytest
+
+import numpy as np
+from numpy.testing import HAS_REFCOUNT, assert_, assert_array_equal, assert_raises
+
+
+class TestTake:
+    def test_simple(self):
+        a = [[1, 2], [3, 4]]
+        a_str = [[b'1', b'2'], [b'3', b'4']]
+        modes = ['raise', 'wrap', 'clip']
+        indices = [-1, 4]
+        index_arrays = [np.empty(0, dtype=np.intp),
+                        np.empty((), dtype=np.intp),
+                        np.empty((1, 1), dtype=np.intp)]
+        real_indices = {'raise': {-1: 1, 4: IndexError},
+                        'wrap': {-1: 1, 4: 0},
+                        'clip': {-1: 0, 4: 1}}
+        # Currently all types but object, use the same function generation.
+        # So it should not be necessary to test all. However test also a non
+        # refcounted struct on top of object, which has a size that hits the
+        # default (non-specialized) path.
+        types = int, object, np.dtype([('', 'i2', 3)])
+        for t in types:
+            # ta works, even if the array may be odd if buffer interface is used
+            ta = np.array(a if np.issubdtype(t, np.number) else a_str, dtype=t)
+            tresult = list(ta.T.copy())
+            for index_array in index_arrays:
+                if index_array.size != 0:
+                    tresult[0].shape = (2,) + index_array.shape
+                    tresult[1].shape = (2,) + index_array.shape
+                for mode in modes:
+                    for index in indices:
+                        real_index = real_indices[mode][index]
+                        if real_index is IndexError and index_array.size != 0:
+                            index_array.put(0, index)
+                            assert_raises(IndexError, ta.take, index_array,
+                                          mode=mode, axis=1)
+                        elif index_array.size != 0:
+                            index_array.put(0, index)
+                            res = ta.take(index_array, mode=mode, axis=1)
+                            assert_array_equal(res, tresult[real_index])
+                        else:
+                            res = ta.take(index_array, mode=mode, axis=1)
+                            assert_(res.shape == (2,) + index_array.shape)
+
+    def test_refcounting(self):
+        objects = [object() for i in range(10)]
+        if HAS_REFCOUNT:
+            orig_rcs = [sys.getrefcount(o) for o in objects]
+        for mode in ('raise', 'clip', 'wrap'):
+            a = np.array(objects)
+            b = np.array([2, 2, 4, 5, 3, 5])
+            a.take(b, out=a[:6], mode=mode)
+            del a
+            if HAS_REFCOUNT:
+                assert_(all(sys.getrefcount(o) == rc + 1
+                            for o, rc in zip(objects, orig_rcs)))
+            # not contiguous, example:
+            a = np.array(objects * 2)[::2]
+            a.take(b, out=a[:6], mode=mode)
+            del a
+            if HAS_REFCOUNT:
+                assert_(all(sys.getrefcount(o) == rc + 1
+                            for o, rc in zip(objects, orig_rcs)))
+
+    def test_unicode_mode(self):
+        d = np.arange(10)
+        k = b'\xc3\xa4'.decode("UTF8")
+        assert_raises(ValueError, d.take, 5, mode=k)
+
+    def test_empty_partition(self):
+        # In reference to github issue #6530
+        a_original = np.array([0, 2, 4, 6, 8, 10])
+        a = a_original.copy()
+
+        # An empty partition should be a successful no-op
+        a.partition(np.array([], dtype=np.int16))
+
+        assert_array_equal(a, a_original)
+
+    def test_empty_argpartition(self):
+        # In reference to github issue #6530
+        a = np.array([0, 2, 4, 6, 8, 10])
+        a = a.argpartition(np.array([], dtype=np.int16))
+
+        b = np.array([0, 1, 2, 3, 4, 5])
+        assert_array_equal(a, b)
+
+
+class TestPutMask:
+    @pytest.mark.parametrize("dtype", list(np.typecodes["All"]) + ["i,O"])
+    def test_simple(self, dtype):
+        if dtype.lower() == "m":
+            dtype += "8[ns]"
+
+        # putmask is weird and doesn't care about value length (even shorter)
+        vals = np.arange(1001).astype(dtype=dtype)
+
+        mask = np.random.randint(2, size=1000).astype(bool)
+        # Use vals.dtype in case of flexible dtype (i.e. string)
+        arr = np.zeros(1000, dtype=vals.dtype)
+        zeros = arr.copy()
+
+        np.putmask(arr, mask, vals)
+        assert_array_equal(arr[mask], vals[:len(mask)][mask])
+        assert_array_equal(arr[~mask], zeros[~mask])
+
+    @pytest.mark.parametrize("dtype", list(np.typecodes["All"])[1:] + ["i,O"])
+    @pytest.mark.parametrize("mode", ["raise", "wrap", "clip"])
+    def test_empty(self, dtype, mode):
+        arr = np.zeros(1000, dtype=dtype)
+        arr_copy = arr.copy()
+        mask = np.random.randint(2, size=1000).astype(bool)
+
+        # Allowing empty values like this is weird...
+        np.put(arr, mask, [])
+        assert_array_equal(arr, arr_copy)
+
+
+class TestPut:
+    @pytest.mark.parametrize("dtype", list(np.typecodes["All"])[1:] + ["i,O"])
+    @pytest.mark.parametrize("mode", ["raise", "wrap", "clip"])
+    def test_simple(self, dtype, mode):
+        if dtype.lower() == "m":
+            dtype += "8[ns]"
+
+        # put is weird and doesn't care about value length (even shorter)
+        vals = np.arange(1001).astype(dtype=dtype)
+
+        # Use vals.dtype in case of flexible dtype (i.e. string)
+        arr = np.zeros(1000, dtype=vals.dtype)
+        zeros = arr.copy()
+
+        if mode == "clip":
+            # Special because 0 and -1 value are "reserved" for clip test
+            indx = np.random.permutation(len(arr) - 2)[:-500] + 1
+
+            indx[-1] = 0
+            indx[-2] = len(arr) - 1
+            indx_put = indx.copy()
+            indx_put[-1] = -1389
+            indx_put[-2] = 1321
+        else:
+            # Avoid duplicates (for simplicity) and fill half only
+            indx = np.random.permutation(len(arr) - 3)[:-500]
+            indx_put = indx
+            if mode == "wrap":
+                indx_put = indx_put + len(arr)
+
+        np.put(arr, indx_put, vals, mode=mode)
+        assert_array_equal(arr[indx], vals[:len(indx)])
+        untouched = np.ones(len(arr), dtype=bool)
+        untouched[indx] = False
+        assert_array_equal(arr[untouched], zeros[:untouched.sum()])
+
+    @pytest.mark.parametrize("dtype", list(np.typecodes["All"])[1:] + ["i,O"])
+    @pytest.mark.parametrize("mode", ["raise", "wrap", "clip"])
+    def test_empty(self, dtype, mode):
+        arr = np.zeros(1000, dtype=dtype)
+        arr_copy = arr.copy()
+
+        # Allowing empty values like this is weird...
+        np.put(arr, [1, 2, 3], [])
+        assert_array_equal(arr, arr_copy)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_limited_api.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_limited_api.py
new file mode 100644
index 0000000000000000000000000000000000000000..f088f4f4016b240385ff89945c78f4a33452abd1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_limited_api.py
@@ -0,0 +1,102 @@
+import os
+import subprocess
+import sys
+import sysconfig
+
+import pytest
+
+from numpy.testing import IS_EDITABLE, IS_PYPY, IS_WASM, NOGIL_BUILD
+
+# This import is copied from random.tests.test_extending
+try:
+    import cython
+    from Cython.Compiler.Version import version as cython_version
+except ImportError:
+    cython = None
+else:
+    from numpy._utils import _pep440
+
+    # Note: keep in sync with the one in pyproject.toml
+    required_version = "3.0.6"
+    if _pep440.parse(cython_version) < _pep440.Version(required_version):
+        # too old or wrong cython, skip the test
+        cython = None
+
+pytestmark = pytest.mark.skipif(cython is None, reason="requires cython")
+
+
+if IS_EDITABLE:
+    pytest.skip(
+        "Editable install doesn't support tests with a compile step",
+        allow_module_level=True
+    )
+
+
+@pytest.fixture(scope='module')
+def install_temp(tmpdir_factory):
+    # Based in part on test_cython from random.tests.test_extending
+    if IS_WASM:
+        pytest.skip("No subprocess")
+
+    srcdir = os.path.join(os.path.dirname(__file__), 'examples', 'limited_api')
+    build_dir = tmpdir_factory.mktemp("limited_api") / "build"
+    os.makedirs(build_dir, exist_ok=True)
+    # Ensure we use the correct Python interpreter even when `meson` is
+    # installed in a different Python environment (see gh-24956)
+    native_file = str(build_dir / 'interpreter-native-file.ini')
+    with open(native_file, 'w') as f:
+        f.write("[binaries]\n")
+        f.write(f"python = '{sys.executable}'\n")
+        f.write(f"python3 = '{sys.executable}'")
+
+    try:
+        subprocess.check_call(["meson", "--version"])
+    except FileNotFoundError:
+        pytest.skip("No usable 'meson' found")
+    if sysconfig.get_platform() == "win-arm64":
+        pytest.skip("Meson unable to find MSVC linker on win-arm64")
+    if sys.platform == "win32":
+        subprocess.check_call(["meson", "setup",
+                               "--werror",
+                               "--buildtype=release",
+                               "--vsenv", "--native-file", native_file,
+                               str(srcdir)],
+                              cwd=build_dir,
+                              )
+    else:
+        subprocess.check_call(["meson", "setup", "--werror",
+                               "--native-file", native_file, str(srcdir)],
+                              cwd=build_dir
+                              )
+    try:
+        subprocess.check_call(
+            ["meson", "compile", "-vv"], cwd=build_dir)
+    except subprocess.CalledProcessError as p:
+        print(f"{p.stdout=}")
+        print(f"{p.stderr=}")
+        raise
+
+    sys.path.append(str(build_dir))
+
+
+@pytest.mark.skipif(IS_WASM, reason="Can't start subprocess")
+@pytest.mark.xfail(
+    sysconfig.get_config_var("Py_DEBUG"),
+    reason=(
+        "Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, "
+        "and Py_REF_DEBUG"
+    ),
+)
+@pytest.mark.xfail(
+    NOGIL_BUILD,
+    reason="Py_GIL_DISABLED builds do not currently support the limited API",
+)
+@pytest.mark.skipif(IS_PYPY, reason="no support for limited API in PyPy")
+def test_limited_api(install_temp):
+    """Test building a third-party C extension with the limited API
+    and building a cython extension with the limited API
+    """
+
+    import limited_api1  # Earliest (3.6)  # noqa: F401
+    import limited_api2  # cython  # noqa: F401
+    import limited_api_latest  # Latest version (current Python)  # noqa: F401
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_longdouble.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_longdouble.py
new file mode 100644
index 0000000000000000000000000000000000000000..87eb75165952143f714c85973c1f4580c86245ea
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_longdouble.py
@@ -0,0 +1,370 @@
+import platform
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy._core.tests._locales import CommaDecimalPointLocale
+from numpy.testing import (
+    IS_MUSL,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    temppath,
+)
+
+LD_INFO = np.finfo(np.longdouble)
+longdouble_longer_than_double = (LD_INFO.eps < np.finfo(np.double).eps)
+
+
+_o = 1 + LD_INFO.eps
+string_to_longdouble_inaccurate = (_o != np.longdouble(str(_o)))
+del _o
+
+
+def test_scalar_extraction():
+    """Confirm that extracting a value doesn't convert to python float"""
+    o = 1 + LD_INFO.eps
+    a = np.array([o, o, o])
+    assert_equal(a[1], o)
+
+
+# Conversions string -> long double
+
+# 0.1 not exactly representable in base 2 floating point.
+repr_precision = len(repr(np.longdouble(0.1)))
+# +2 from macro block starting around line 842 in scalartypes.c.src.
+
+
+@pytest.mark.skipif(IS_MUSL,
+                    reason="test flaky on musllinux")
+@pytest.mark.skipif(LD_INFO.precision + 2 >= repr_precision,
+                    reason="repr precision not enough to show eps")
+def test_str_roundtrip():
+    # We will only see eps in repr if within printing precision.
+    o = 1 + LD_INFO.eps
+    assert_equal(np.longdouble(str(o)), o, f"str was {str(o)}")
+
+
+@pytest.mark.skipif(string_to_longdouble_inaccurate, reason="Need strtold_l")
+def test_str_roundtrip_bytes():
+    o = 1 + LD_INFO.eps
+    assert_equal(np.longdouble(str(o).encode("ascii")), o)
+
+
+@pytest.mark.skipif(string_to_longdouble_inaccurate, reason="Need strtold_l")
+@pytest.mark.parametrize("strtype", (np.str_, np.bytes_, str, bytes))
+def test_array_and_stringlike_roundtrip(strtype):
+    """
+    Test that string representations of long-double roundtrip both
+    for array casting and scalar coercion, see also gh-15608.
+    """
+    o = 1 + LD_INFO.eps
+
+    if strtype in (np.bytes_, bytes):
+        o_str = strtype(str(o).encode("ascii"))
+    else:
+        o_str = strtype(str(o))
+
+    # Test that `o` is correctly coerced from the string-like
+    assert o == np.longdouble(o_str)
+
+    # Test that arrays also roundtrip correctly:
+    o_strarr = np.asarray([o] * 3, dtype=strtype)
+    assert (o == o_strarr.astype(np.longdouble)).all()
+
+    # And array coercion and casting to string give the same as scalar repr:
+    assert (o_strarr == o_str).all()
+    assert (np.asarray([o] * 3).astype(strtype) == o_str).all()
+
+
+def test_bogus_string():
+    assert_raises(ValueError, np.longdouble, "spam")
+    assert_raises(ValueError, np.longdouble, "1.0 flub")
+
+
+@pytest.mark.skipif(string_to_longdouble_inaccurate, reason="Need strtold_l")
+def test_fromstring():
+    o = 1 + LD_INFO.eps
+    s = (" " + str(o)) * 5
+    a = np.array([o] * 5)
+    assert_equal(np.fromstring(s, sep=" ", dtype=np.longdouble), a,
+                 err_msg=f"reading '{s}'")
+
+
+def test_fromstring_complex():
+    for ctype in ["complex", "cdouble"]:
+        # Check spacing between separator
+        assert_equal(np.fromstring("1, 2 ,  3  ,4", sep=",", dtype=ctype),
+                     np.array([1., 2., 3., 4.]))
+        # Real component not specified
+        assert_equal(np.fromstring("1j, -2j,  3j, 4e1j", sep=",", dtype=ctype),
+                     np.array([1.j, -2.j, 3.j, 40.j]))
+        # Both components specified
+        assert_equal(np.fromstring("1+1j,2-2j, -3+3j,  -4e1+4j", sep=",", dtype=ctype),
+                     np.array([1. + 1.j, 2. - 2.j, - 3. + 3.j, - 40. + 4j]))
+        # Spaces at wrong places
+        with assert_raises(ValueError):
+            np.fromstring("1+2 j,3", dtype=ctype, sep=",")
+        with assert_raises(ValueError):
+            np.fromstring("1+ 2j,3", dtype=ctype, sep=",")
+        with assert_raises(ValueError):
+            np.fromstring("1 +2j,3", dtype=ctype, sep=",")
+        with assert_raises(ValueError):
+            np.fromstring("1+j", dtype=ctype, sep=",")
+        with assert_raises(ValueError):
+            np.fromstring("1+", dtype=ctype, sep=",")
+        with assert_raises(ValueError):
+            np.fromstring("1j+1", dtype=ctype, sep=",")
+
+
+def test_fromstring_bogus():
+    with assert_raises(ValueError):
+        np.fromstring("1. 2. 3. flop 4.", dtype=float, sep=" ")
+
+
+def test_fromstring_empty():
+    with assert_raises(ValueError):
+        np.fromstring("xxxxx", sep="x")
+
+
+def test_fromstring_missing():
+    with assert_raises(ValueError):
+        np.fromstring("1xx3x4x5x6", sep="x")
+
+
+class TestFileBased:
+
+    ldbl = 1 + LD_INFO.eps
+    tgt = np.array([ldbl] * 5)
+    out = ''.join([str(t) + '\n' for t in tgt])
+
+    def test_fromfile_bogus(self):
+        with temppath() as path:
+            with open(path, 'w') as f:
+                f.write("1. 2. 3. flop 4.\n")
+
+            with assert_raises(ValueError):
+                np.fromfile(path, dtype=float, sep=" ")
+
+    def test_fromfile_complex(self):
+        for ctype in ["complex", "cdouble"]:
+            # Check spacing between separator and only real component specified
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1, 2 ,  3  ,4\n")
+
+                res = np.fromfile(path, dtype=ctype, sep=",")
+            assert_equal(res, np.array([1., 2., 3., 4.]))
+
+            # Real component not specified
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1j, -2j,  3j, 4e1j\n")
+
+                res = np.fromfile(path, dtype=ctype, sep=",")
+            assert_equal(res, np.array([1.j, -2.j, 3.j, 40.j]))
+
+            # Both components specified
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1+1j,2-2j, -3+3j,  -4e1+4j\n")
+
+                res = np.fromfile(path, dtype=ctype, sep=",")
+            assert_equal(res, np.array([1. + 1.j, 2. - 2.j, - 3. + 3.j, - 40. + 4j]))
+
+            # Spaces at wrong places
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1+2 j,3\n")
+
+                with assert_raises(ValueError):
+                    np.fromfile(path, dtype=ctype, sep=",")
+
+            # Spaces at wrong places
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1+ 2j,3\n")
+
+                with assert_raises(ValueError):
+                    np.fromfile(path, dtype=ctype, sep=",")
+
+            # Spaces at wrong places
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1 +2j,3\n")
+
+                with assert_raises(ValueError):
+                    np.fromfile(path, dtype=ctype, sep=",")
+
+            # Wrong sep
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1+j\n")
+
+                with assert_raises(ValueError):
+                    np.fromfile(path, dtype=ctype, sep=",")
+
+            # Wrong sep
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1+\n")
+
+                with assert_raises(ValueError):
+                    np.fromfile(path, dtype=ctype, sep=",")
+
+            # Wrong sep
+            with temppath() as path:
+                with open(path, 'w') as f:
+                    f.write("1j+1\n")
+
+                with assert_raises(ValueError):
+                    np.fromfile(path, dtype=ctype, sep=",")
+
+    @pytest.mark.skipif(string_to_longdouble_inaccurate,
+                        reason="Need strtold_l")
+    def test_fromfile(self):
+        with temppath() as path:
+            with open(path, 'w') as f:
+                f.write(self.out)
+            res = np.fromfile(path, dtype=np.longdouble, sep="\n")
+        assert_equal(res, self.tgt)
+
+    @pytest.mark.skipif(string_to_longdouble_inaccurate,
+                        reason="Need strtold_l")
+    def test_genfromtxt(self):
+        with temppath() as path:
+            with open(path, 'w') as f:
+                f.write(self.out)
+            res = np.genfromtxt(path, dtype=np.longdouble)
+        assert_equal(res, self.tgt)
+
+    @pytest.mark.skipif(string_to_longdouble_inaccurate,
+                        reason="Need strtold_l")
+    def test_loadtxt(self):
+        with temppath() as path:
+            with open(path, 'w') as f:
+                f.write(self.out)
+            res = np.loadtxt(path, dtype=np.longdouble)
+        assert_equal(res, self.tgt)
+
+    @pytest.mark.skipif(string_to_longdouble_inaccurate,
+                        reason="Need strtold_l")
+    def test_tofile_roundtrip(self):
+        with temppath() as path:
+            self.tgt.tofile(path, sep=" ")
+            res = np.fromfile(path, dtype=np.longdouble, sep=" ")
+        assert_equal(res, self.tgt)
+
+
+# Conversions long double -> string
+
+
+def test_str_exact():
+    o = 1 + LD_INFO.eps
+    assert_(str(o) != '1')
+
+
+@pytest.mark.skipif(longdouble_longer_than_double, reason="BUG #2376")
+@pytest.mark.skipif(string_to_longdouble_inaccurate,
+                    reason="Need strtold_l")
+def test_format():
+    assert_(f"{1 + LD_INFO.eps:.40g}" != '1')
+
+
+@pytest.mark.skipif(longdouble_longer_than_double, reason="BUG #2376")
+@pytest.mark.skipif(string_to_longdouble_inaccurate,
+                    reason="Need strtold_l")
+def test_percent():
+    o = 1 + LD_INFO.eps
+    assert_(f"{o:.40g}" != '1')
+
+
+@pytest.mark.skipif(longdouble_longer_than_double,
+                    reason="array repr problem")
+@pytest.mark.skipif(string_to_longdouble_inaccurate,
+                    reason="Need strtold_l")
+def test_array_repr():
+    o = 1 + LD_INFO.eps
+    a = np.array([o])
+    b = np.array([1], dtype=np.longdouble)
+    if not np.all(a != b):
+        raise ValueError("precision loss creating arrays")
+    with np.printoptions(precision=LD_INFO.precision + 1):
+        assert_(repr(a) != repr(b))
+
+#
+# Locale tests: scalar types formatting should be independent of the locale
+#
+
+class TestCommaDecimalPointLocale(CommaDecimalPointLocale):
+
+    def test_str_roundtrip_foreign(self):
+        o = 1.5
+        assert_equal(o, np.longdouble(str(o)))
+
+    def test_fromstring_foreign_repr(self):
+        f = 1.234
+        a = np.fromstring(repr(f), dtype=float, sep=" ")
+        assert_equal(a[0], f)
+
+    def test_fromstring_foreign(self):
+        s = "1.234"
+        a = np.fromstring(s, dtype=np.longdouble, sep=" ")
+        assert_equal(a[0], np.longdouble(s))
+
+    def test_fromstring_foreign_sep(self):
+        a = np.array([1, 2, 3, 4])
+        b = np.fromstring("1,2,3,4,", dtype=np.longdouble, sep=",")
+        assert_array_equal(a, b)
+
+    def test_fromstring_foreign_value(self):
+        with assert_raises(ValueError):
+            np.fromstring("1,234", dtype=np.longdouble, sep=" ")
+
+
+@pytest.mark.parametrize("int_val", [
+    # cases discussed in gh-10723
+    # and gh-9968
+    2 ** 1024, 0])
+def test_longdouble_from_int(int_val):
+    # for issue gh-9968
+    str_val = str(int_val)
+    # we'll expect a RuntimeWarning on platforms
+    # with np.longdouble equivalent to np.double
+    # for large integer input
+    with warnings.catch_warnings(record=True) as w:
+        warnings.filterwarnings('always', '', RuntimeWarning)
+        # can be inf==inf on some platforms
+        assert np.longdouble(int_val) == np.longdouble(str_val)
+        # we can't directly compare the int and
+        # max longdouble value on all platforms
+        if np.allclose(np.finfo(np.longdouble).max,
+                       np.finfo(np.double).max) and w:
+            assert w[0].category is RuntimeWarning
+
+@pytest.mark.parametrize("bool_val", [
+    True, False])
+def test_longdouble_from_bool(bool_val):
+    assert np.longdouble(bool_val) == np.longdouble(int(bool_val))
+
+
+@pytest.mark.skipif(
+    not (IS_MUSL and platform.machine() == "x86_64"),
+    reason="only need to run on musllinux_x86_64"
+)
+def test_musllinux_x86_64_signature():
+    # this test may fail if you're emulating musllinux_x86_64 on a different
+    # architecture, but should pass natively.
+    known_sigs = [b'\xcd\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xfb\xbf']
+    sig = (np.longdouble(-1.0) / np.longdouble(10.0))
+    sig = sig.view(sig.dtype.newbyteorder('<')).tobytes()[:10]
+    assert sig in known_sigs
+
+
+def test_eps_positive():
+    # np.finfo('g').eps should be positive on all platforms. If this isn't true
+    # then something may have gone wrong with the MachArLike, e.g. if
+    # np._core.getlimits._discovered_machar didn't work properly
+    assert np.finfo(np.longdouble).eps > 0.
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_mem_overlap.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_mem_overlap.py
new file mode 100644
index 0000000000000000000000000000000000000000..7d5c3e586f30f0c6930cd04fd21dbed98535b4d0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_mem_overlap.py
@@ -0,0 +1,933 @@
+import itertools
+
+import pytest
+
+import numpy as np
+from numpy._core import _umath_tests
+from numpy._core._multiarray_tests import internal_overlap, solve_diophantine
+from numpy.lib.stride_tricks import as_strided
+from numpy.testing import assert_, assert_array_equal, assert_equal, assert_raises
+
+ndims = 2
+size = 10
+shape = tuple([size] * ndims)
+
+MAY_SHARE_BOUNDS = 0
+MAY_SHARE_EXACT = -1
+
+
+def _indices_for_nelems(nelems):
+    """Returns slices of length nelems, from start onwards, in direction sign."""
+
+    if nelems == 0:
+        return [size // 2]  # int index
+
+    res = []
+    for step in (1, 2):
+        for sign in (-1, 1):
+            start = size // 2 - nelems * step * sign // 2
+            stop = start + nelems * step * sign
+            res.append(slice(start, stop, step * sign))
+
+    return res
+
+
+def _indices_for_axis():
+    """Returns (src, dst) pairs of indices."""
+
+    res = []
+    for nelems in (0, 2, 3):
+        ind = _indices_for_nelems(nelems)
+        res.extend(itertools.product(ind, ind))  # all assignments of size "nelems"
+
+    return res
+
+
+def _indices(ndims):
+    """Returns ((axis0_src, axis0_dst), (axis1_src, axis1_dst), ... ) index pairs."""
+
+    ind = _indices_for_axis()
+    return itertools.product(ind, repeat=ndims)
+
+
+def _check_assignment(srcidx, dstidx):
+    """Check assignment arr[dstidx] = arr[srcidx] works."""
+
+    arr = np.arange(np.prod(shape)).reshape(shape)
+
+    cpy = arr.copy()
+
+    cpy[dstidx] = arr[srcidx]
+    arr[dstidx] = arr[srcidx]
+
+    assert_(np.all(arr == cpy),
+            f'assigning arr[{dstidx}] = arr[{srcidx}]')
+
+
+def test_overlapping_assignments():
+    # Test automatically generated assignments which overlap in memory.
+
+    inds = _indices(ndims)
+
+    for ind in inds:
+        srcidx = tuple(a[0] for a in ind)
+        dstidx = tuple(a[1] for a in ind)
+
+        _check_assignment(srcidx, dstidx)
+
+
+@pytest.mark.slow
+def test_diophantine_fuzz():
+    # Fuzz test the diophantine solver
+    rng = np.random.RandomState(1234)
+
+    max_int = np.iinfo(np.intp).max
+
+    for ndim in range(10):
+        feasible_count = 0
+        infeasible_count = 0
+
+        min_count = 500 // (ndim + 1)
+
+        while min(feasible_count, infeasible_count) < min_count:
+            # Ensure big and small integer problems
+            A_max = 1 + rng.randint(0, 11, dtype=np.intp)**6
+            U_max = rng.randint(0, 11, dtype=np.intp)**6
+
+            A_max = min(max_int, A_max)
+            U_max = min(max_int - 1, U_max)
+
+            A = tuple(int(rng.randint(1, A_max + 1, dtype=np.intp))
+                      for j in range(ndim))
+            U = tuple(int(rng.randint(0, U_max + 2, dtype=np.intp))
+                      for j in range(ndim))
+
+            b_ub = min(max_int - 2, sum(a * ub for a, ub in zip(A, U)))
+            b = int(rng.randint(-1, b_ub + 2, dtype=np.intp))
+
+            if ndim == 0 and feasible_count < min_count:
+                b = 0
+
+            X = solve_diophantine(A, U, b)
+
+            if X is None:
+                # Check the simplified decision problem agrees
+                X_simplified = solve_diophantine(A, U, b, simplify=1)
+                assert_(X_simplified is None, (A, U, b, X_simplified))
+
+                # Check no solution exists (provided the problem is
+                # small enough so that brute force checking doesn't
+                # take too long)
+                ranges = tuple(range(0, a * ub + 1, a) for a, ub in zip(A, U))
+
+                size = 1
+                for r in ranges:
+                    size *= len(r)
+                if size < 100000:
+                    assert_(not any(sum(w) == b for w in itertools.product(*ranges)))
+                    infeasible_count += 1
+            else:
+                # Check the simplified decision problem agrees
+                X_simplified = solve_diophantine(A, U, b, simplify=1)
+                assert_(X_simplified is not None, (A, U, b, X_simplified))
+
+                # Check validity
+                assert_(sum(a * x for a, x in zip(A, X)) == b)
+                assert_(all(0 <= x <= ub for x, ub in zip(X, U)))
+                feasible_count += 1
+
+
+def test_diophantine_overflow():
+    # Smoke test integer overflow detection
+    max_intp = np.iinfo(np.intp).max
+    max_int64 = np.iinfo(np.int64).max
+
+    if max_int64 <= max_intp:
+        # Check that the algorithm works internally in 128-bit;
+        # solving this problem requires large intermediate numbers
+        A = (max_int64 // 2, max_int64 // 2 - 10)
+        U = (max_int64 // 2, max_int64 // 2 - 10)
+        b = 2 * (max_int64 // 2) - 10
+
+        assert_equal(solve_diophantine(A, U, b), (1, 1))
+
+
+def check_may_share_memory_exact(a, b):
+    got = np.may_share_memory(a, b, max_work=MAY_SHARE_EXACT)
+
+    assert_equal(np.may_share_memory(a, b),
+                 np.may_share_memory(a, b, max_work=MAY_SHARE_BOUNDS))
+
+    a.fill(0)
+    b.fill(0)
+    a.fill(1)
+    exact = b.any()
+
+    err_msg = ""
+    if got != exact:
+        base_delta = a.__array_interface__['data'][0] - b.__array_interface__['data'][0]
+        err_msg = "    " + "\n    ".join([
+            f"base_a - base_b = {base_delta!r}",
+            f"shape_a = {a.shape!r}",
+            f"shape_b = {b.shape!r}",
+            f"strides_a = {a.strides!r}",
+            f"strides_b = {b.strides!r}",
+            f"size_a = {a.size!r}",
+            f"size_b = {b.size!r}"
+        ])
+
+    assert_equal(got, exact, err_msg=err_msg)
+
+
+def test_may_share_memory_manual():
+    # Manual test cases for may_share_memory
+
+    # Base arrays
+    xs0 = [
+        np.zeros([13, 21, 23, 22], dtype=np.int8),
+        np.zeros([13, 21, 23 * 2, 22], dtype=np.int8)[:, :, ::2, :]
+    ]
+
+    # Generate all negative stride combinations
+    xs = []
+    for x in xs0:
+        for ss in itertools.product(*(([slice(None), slice(None, None, -1)],) * 4)):
+            xp = x[ss]
+            xs.append(xp)
+
+    for x in xs:
+        # The default is a simple extent check
+        assert_(np.may_share_memory(x[:, 0, :], x[:, 1, :]))
+        assert_(np.may_share_memory(x[:, 0, :], x[:, 1, :], max_work=None))
+
+        # Exact checks
+        check_may_share_memory_exact(x[:, 0, :], x[:, 1, :])
+        check_may_share_memory_exact(x[:, ::7], x[:, 3::3])
+
+        try:
+            xp = x.ravel()
+            if xp.flags.owndata:
+                continue
+            xp = xp.view(np.int16)
+        except ValueError:
+            continue
+
+        # 0-size arrays cannot overlap
+        check_may_share_memory_exact(x.ravel()[6:6],
+                                     xp.reshape(13, 21, 23, 11)[:, ::7])
+
+        # Test itemsize is dealt with
+        check_may_share_memory_exact(x[:, ::7],
+                                     xp.reshape(13, 21, 23, 11))
+        check_may_share_memory_exact(x[:, ::7],
+                                     xp.reshape(13, 21, 23, 11)[:, 3::3])
+        check_may_share_memory_exact(x.ravel()[6:7],
+                                     xp.reshape(13, 21, 23, 11)[:, ::7])
+
+    # Check unit size
+    x = np.zeros([1], dtype=np.int8)
+    check_may_share_memory_exact(x, x)
+    check_may_share_memory_exact(x, x.copy())
+
+
+def iter_random_view_pairs(x, same_steps=True, equal_size=False):
+    rng = np.random.RandomState(1234)
+
+    if equal_size and same_steps:
+        raise ValueError
+
+    def random_slice(n, step):
+        start = rng.randint(0, n + 1, dtype=np.intp)
+        stop = rng.randint(start, n + 1, dtype=np.intp)
+        if rng.randint(0, 2, dtype=np.intp) == 0:
+            stop, start = start, stop
+            step *= -1
+        return slice(start, stop, step)
+
+    def random_slice_fixed_size(n, step, size):
+        start = rng.randint(0, n + 1 - size * step)
+        stop = start + (size - 1) * step + 1
+        if rng.randint(0, 2) == 0:
+            stop, start = start - 1, stop - 1
+            if stop < 0:
+                stop = None
+            step *= -1
+        return slice(start, stop, step)
+
+    # First a few regular views
+    yield x, x
+    for j in range(1, 7, 3):
+        yield x[j:], x[:-j]
+        yield x[..., j:], x[..., :-j]
+
+    # An array with zero stride internal overlap
+    strides = list(x.strides)
+    strides[0] = 0
+    xp = as_strided(x, shape=x.shape, strides=strides)
+    yield x, xp
+    yield xp, xp
+
+    # An array with non-zero stride internal overlap
+    strides = list(x.strides)
+    if strides[0] > 1:
+        strides[0] = 1
+    xp = as_strided(x, shape=x.shape, strides=strides)
+    yield x, xp
+    yield xp, xp
+
+    # Then discontiguous views
+    while True:
+        steps = tuple(rng.randint(1, 11, dtype=np.intp)
+                      if rng.randint(0, 5, dtype=np.intp) == 0 else 1
+                      for j in range(x.ndim))
+        s1 = tuple(random_slice(p, s) for p, s in zip(x.shape, steps))
+
+        t1 = np.arange(x.ndim)
+        rng.shuffle(t1)
+
+        if equal_size:
+            t2 = t1
+        else:
+            t2 = np.arange(x.ndim)
+            rng.shuffle(t2)
+
+        a = x[s1]
+
+        if equal_size:
+            if a.size == 0:
+                continue
+
+            steps2 = tuple(rng.randint(1, max(2, p // (1 + pa)))
+                           if rng.randint(0, 5) == 0 else 1
+                           for p, s, pa in zip(x.shape, s1, a.shape))
+            s2 = tuple(random_slice_fixed_size(p, s, pa)
+                       for p, s, pa in zip(x.shape, steps2, a.shape))
+        elif same_steps:
+            steps2 = steps
+        else:
+            steps2 = tuple(rng.randint(1, 11, dtype=np.intp)
+                           if rng.randint(0, 5, dtype=np.intp) == 0 else 1
+                           for j in range(x.ndim))
+
+        if not equal_size:
+            s2 = tuple(random_slice(p, s) for p, s in zip(x.shape, steps2))
+
+        a = a.transpose(t1)
+        b = x[s2].transpose(t2)
+
+        yield a, b
+
+
+def check_may_share_memory_easy_fuzz(get_max_work, same_steps, min_count):
+    # Check that overlap problems with common strides are solved with
+    # little work.
+    x = np.zeros([17, 34, 71, 97], dtype=np.int16)
+
+    feasible = 0
+    infeasible = 0
+
+    pair_iter = iter_random_view_pairs(x, same_steps)
+
+    while min(feasible, infeasible) < min_count:
+        a, b = next(pair_iter)
+
+        bounds_overlap = np.may_share_memory(a, b)
+        may_share_answer = np.may_share_memory(a, b)
+        easy_answer = np.may_share_memory(a, b, max_work=get_max_work(a, b))
+        exact_answer = np.may_share_memory(a, b, max_work=MAY_SHARE_EXACT)
+
+        if easy_answer != exact_answer:
+            # assert_equal is slow...
+            assert_equal(easy_answer, exact_answer)
+
+        if may_share_answer != bounds_overlap:
+            assert_equal(may_share_answer, bounds_overlap)
+
+        if bounds_overlap:
+            if exact_answer:
+                feasible += 1
+            else:
+                infeasible += 1
+
+
+@pytest.mark.slow
+def test_may_share_memory_easy_fuzz():
+    # Check that overlap problems with common strides are always
+    # solved with little work.
+
+    check_may_share_memory_easy_fuzz(get_max_work=lambda a, b: 1,
+                                     same_steps=True,
+                                     min_count=2000)
+
+
+@pytest.mark.slow
+def test_may_share_memory_harder_fuzz():
+    # Overlap problems with not necessarily common strides take more
+    # work.
+    #
+    # The work bound below can't be reduced much. Harder problems can
+    # also exist but not be detected here, as the set of problems
+    # comes from RNG.
+
+    check_may_share_memory_easy_fuzz(get_max_work=lambda a, b: max(a.size, b.size) // 2,
+                                     same_steps=False,
+                                     min_count=2000)
+
+
+def test_shares_memory_api():
+    x = np.zeros([4, 5, 6], dtype=np.int8)
+
+    assert_equal(np.shares_memory(x, x), True)
+    assert_equal(np.shares_memory(x, x.copy()), False)
+
+    a = x[:, ::2, ::3]
+    b = x[:, ::3, ::2]
+    assert_equal(np.shares_memory(a, b), True)
+    assert_equal(np.shares_memory(a, b, max_work=None), True)
+    assert_raises(
+        np.exceptions.TooHardError, np.shares_memory, a, b, max_work=1
+    )
+
+
+def test_may_share_memory_bad_max_work():
+    x = np.zeros([1])
+    assert_raises(OverflowError, np.may_share_memory, x, x, max_work=10**100)
+    assert_raises(OverflowError, np.shares_memory, x, x, max_work=10**100)
+
+
+def test_internal_overlap_diophantine():
+    def check(A, U, exists=None):
+        X = solve_diophantine(A, U, 0, require_ub_nontrivial=1)
+
+        if exists is None:
+            exists = (X is not None)
+
+        if X is not None:
+            sum_ax = sum(a * x for a, x in zip(A, X))
+            sum_au_half = sum(a * u // 2 for a, u in zip(A, U))
+            assert_(sum_ax == sum_au_half)
+            assert_(all(0 <= x <= u for x, u in zip(X, U)))
+            assert_(any(x != u // 2 for x, u in zip(X, U)))
+
+        if exists:
+            assert_(X is not None, repr(X))
+        else:
+            assert_(X is None, repr(X))
+
+    # Smoke tests
+    check((3, 2), (2 * 2, 3 * 2), exists=True)
+    check((3 * 2, 2), (15 * 2, (3 - 1) * 2), exists=False)
+
+
+def test_internal_overlap_slices():
+    # Slicing an array never generates internal overlap
+
+    x = np.zeros([17, 34, 71, 97], dtype=np.int16)
+
+    rng = np.random.RandomState(1234)
+
+    def random_slice(n, step):
+        start = rng.randint(0, n + 1, dtype=np.intp)
+        stop = rng.randint(start, n + 1, dtype=np.intp)
+        if rng.randint(0, 2, dtype=np.intp) == 0:
+            stop, start = start, stop
+            step *= -1
+        return slice(start, stop, step)
+
+    cases = 0
+    min_count = 5000
+
+    while cases < min_count:
+        steps = tuple(rng.randint(1, 11, dtype=np.intp)
+                      if rng.randint(0, 5, dtype=np.intp) == 0 else 1
+                      for j in range(x.ndim))
+        t1 = np.arange(x.ndim)
+        rng.shuffle(t1)
+        s1 = tuple(random_slice(p, s) for p, s in zip(x.shape, steps))
+        a = x[s1].transpose(t1)
+
+        assert_(not internal_overlap(a))
+        cases += 1
+
+
+def check_internal_overlap(a, manual_expected=None):
+    got = internal_overlap(a)
+
+    # Brute-force check
+    m = set()
+    ranges = tuple(range(n) for n in a.shape)
+    for v in itertools.product(*ranges):
+        offset = sum(s * w for s, w in zip(a.strides, v))
+        if offset in m:
+            expected = True
+            break
+        else:
+            m.add(offset)
+    else:
+        expected = False
+
+    # Compare
+    if got != expected:
+        assert_equal(got, expected, err_msg=repr((a.strides, a.shape)))
+    if manual_expected is not None and expected != manual_expected:
+        assert_equal(expected, manual_expected)
+    return got
+
+
+def test_internal_overlap_manual():
+    # Stride tricks can construct arrays with internal overlap
+
+    # We don't care about memory bounds, the array is not
+    # read/write accessed
+    x = np.arange(1).astype(np.int8)
+
+    # Check low-dimensional special cases
+
+    check_internal_overlap(x, False)  # 1-dim
+    check_internal_overlap(x.reshape([]), False)  # 0-dim
+
+    a = as_strided(x, strides=(3, 4), shape=(4, 4))
+    check_internal_overlap(a, False)
+
+    a = as_strided(x, strides=(3, 4), shape=(5, 4))
+    check_internal_overlap(a, True)
+
+    a = as_strided(x, strides=(0,), shape=(0,))
+    check_internal_overlap(a, False)
+
+    a = as_strided(x, strides=(0,), shape=(1,))
+    check_internal_overlap(a, False)
+
+    a = as_strided(x, strides=(0,), shape=(2,))
+    check_internal_overlap(a, True)
+
+    a = as_strided(x, strides=(0, -9993), shape=(87, 22))
+    check_internal_overlap(a, True)
+
+    a = as_strided(x, strides=(0, -9993), shape=(1, 22))
+    check_internal_overlap(a, False)
+
+    a = as_strided(x, strides=(0, -9993), shape=(0, 22))
+    check_internal_overlap(a, False)
+
+
+def test_internal_overlap_fuzz():
+    # Fuzz check; the brute-force check is fairly slow
+
+    x = np.arange(1).astype(np.int8)
+
+    overlap = 0
+    no_overlap = 0
+    min_count = 100
+
+    rng = np.random.RandomState(1234)
+
+    while min(overlap, no_overlap) < min_count:
+        ndim = rng.randint(1, 4, dtype=np.intp)
+
+        strides = tuple(rng.randint(-1000, 1000, dtype=np.intp)
+                        for j in range(ndim))
+        shape = tuple(rng.randint(1, 30, dtype=np.intp)
+                      for j in range(ndim))
+
+        a = as_strided(x, strides=strides, shape=shape)
+        result = check_internal_overlap(a)
+
+        if result:
+            overlap += 1
+        else:
+            no_overlap += 1
+
+
+def test_non_ndarray_inputs():
+    # Regression check for gh-5604
+
+    class MyArray:
+        def __init__(self, data):
+            self.data = data
+
+        @property
+        def __array_interface__(self):
+            return self.data.__array_interface__
+
+    class MyArray2:
+        def __init__(self, data):
+            self.data = data
+
+        def __array__(self, dtype=None, copy=None):
+            return self.data
+
+    for cls in [MyArray, MyArray2]:
+        x = np.arange(5)
+
+        assert_(np.may_share_memory(cls(x[::2]), x[1::2]))
+        assert_(not np.shares_memory(cls(x[::2]), x[1::2]))
+
+        assert_(np.shares_memory(cls(x[1::3]), x[::2]))
+        assert_(np.may_share_memory(cls(x[1::3]), x[::2]))
+
+
+def view_element_first_byte(x):
+    """Construct an array viewing the first byte of each element of `x`"""
+    from numpy.lib._stride_tricks_impl import DummyArray
+    interface = dict(x.__array_interface__)
+    interface['typestr'] = '|b1'
+    interface['descr'] = [('', '|b1')]
+    return np.asarray(DummyArray(interface, x))
+
+
+def assert_copy_equivalent(operation, args, out, **kwargs):
+    """
+    Check that operation(*args, out=out) produces results
+    equivalent to out[...] = operation(*args, out=out.copy())
+    """
+
+    kwargs['out'] = out
+    kwargs2 = dict(kwargs)
+    kwargs2['out'] = out.copy()
+
+    out_orig = out.copy()
+    out[...] = operation(*args, **kwargs2)
+    expected = out.copy()
+    out[...] = out_orig
+
+    got = operation(*args, **kwargs).copy()
+
+    if (got != expected).any():
+        assert_equal(got, expected)
+
+
+class TestUFunc:
+    """
+    Test ufunc call memory overlap handling
+    """
+
+    def check_unary_fuzz(self, operation, get_out_axis_size, dtype=np.int16,
+                             count=5000):
+        shapes = [7, 13, 8, 21, 29, 32]
+
+        rng = np.random.RandomState(1234)
+
+        for ndim in range(1, 6):
+            x = rng.randint(0, 2**16, size=shapes[:ndim]).astype(dtype)
+
+            it = iter_random_view_pairs(x, same_steps=False, equal_size=True)
+
+            min_count = count // (ndim + 1)**2
+
+            overlapping = 0
+            while overlapping < min_count:
+                a, b = next(it)
+
+                a_orig = a.copy()
+                b_orig = b.copy()
+
+                if get_out_axis_size is None:
+                    assert_copy_equivalent(operation, [a], out=b)
+
+                    if np.shares_memory(a, b):
+                        overlapping += 1
+                else:
+                    for axis in itertools.chain(range(ndim), [None]):
+                        a[...] = a_orig
+                        b[...] = b_orig
+
+                        # Determine size for reduction axis (None if scalar)
+                        outsize, scalarize = get_out_axis_size(a, b, axis)
+                        if outsize == 'skip':
+                            continue
+
+                        # Slice b to get an output array of the correct size
+                        sl = [slice(None)] * ndim
+                        if axis is None:
+                            if outsize is None:
+                                sl = [slice(0, 1)] + [0] * (ndim - 1)
+                            else:
+                                sl = [slice(0, outsize)] + [0] * (ndim - 1)
+                        elif outsize is None:
+                            k = b.shape[axis] // 2
+                            if ndim == 1:
+                                sl[axis] = slice(k, k + 1)
+                            else:
+                                sl[axis] = k
+                        else:
+                            assert b.shape[axis] >= outsize
+                            sl[axis] = slice(0, outsize)
+                        b_out = b[tuple(sl)]
+
+                        if scalarize:
+                            b_out = b_out.reshape([])
+
+                        if np.shares_memory(a, b_out):
+                            overlapping += 1
+
+                        # Check result
+                        assert_copy_equivalent(operation, [a], out=b_out, axis=axis)
+
+    @pytest.mark.slow
+    def test_unary_ufunc_call_fuzz(self):
+        self.check_unary_fuzz(np.invert, None, np.int16)
+
+    @pytest.mark.slow
+    def test_unary_ufunc_call_complex_fuzz(self):
+        # Complex typically has a smaller alignment than itemsize
+        self.check_unary_fuzz(np.negative, None, np.complex128, count=500)
+
+    def test_binary_ufunc_accumulate_fuzz(self):
+        def get_out_axis_size(a, b, axis):
+            if axis is None:
+                if a.ndim == 1:
+                    return a.size, False
+                else:
+                    return 'skip', False  # accumulate doesn't support this
+            else:
+                return a.shape[axis], False
+
+        self.check_unary_fuzz(np.add.accumulate, get_out_axis_size,
+                              dtype=np.int16, count=500)
+
+    def test_binary_ufunc_reduce_fuzz(self):
+        def get_out_axis_size(a, b, axis):
+            return None, (axis is None or a.ndim == 1)
+
+        self.check_unary_fuzz(np.add.reduce, get_out_axis_size,
+                              dtype=np.int16, count=500)
+
+    def test_binary_ufunc_reduceat_fuzz(self):
+        def get_out_axis_size(a, b, axis):
+            if axis is None:
+                if a.ndim == 1:
+                    return a.size, False
+                else:
+                    return 'skip', False  # reduceat doesn't support this
+            else:
+                return a.shape[axis], False
+
+        def do_reduceat(a, out, axis):
+            if axis is None:
+                size = len(a)
+                step = size // len(out)
+            else:
+                size = a.shape[axis]
+                step = a.shape[axis] // out.shape[axis]
+            idx = np.arange(0, size, step)
+            return np.add.reduceat(a, idx, out=out, axis=axis)
+
+        self.check_unary_fuzz(do_reduceat, get_out_axis_size,
+                              dtype=np.int16, count=500)
+
+    def test_binary_ufunc_reduceat_manual(self):
+        def check(ufunc, a, ind, out):
+            c1 = ufunc.reduceat(a.copy(), ind.copy(), out=out.copy())
+            c2 = ufunc.reduceat(a, ind, out=out)
+            assert_array_equal(c1, c2)
+
+        # Exactly same input/output arrays
+        a = np.arange(10000, dtype=np.int16)
+        check(np.add, a, a[::-1].copy(), a)
+
+        # Overlap with index
+        a = np.arange(10000, dtype=np.int16)
+        check(np.add, a, a[::-1], a)
+
+    @pytest.mark.slow
+    def test_unary_gufunc_fuzz(self):
+        shapes = [7, 13, 8, 21, 29, 32]
+        gufunc = _umath_tests.euclidean_pdist
+
+        rng = np.random.RandomState(1234)
+
+        for ndim in range(2, 6):
+            x = rng.rand(*shapes[:ndim])
+
+            it = iter_random_view_pairs(x, same_steps=False, equal_size=True)
+
+            min_count = 500 // (ndim + 1)**2
+
+            overlapping = 0
+            while overlapping < min_count:
+                a, b = next(it)
+
+                if min(a.shape[-2:]) < 2 or min(b.shape[-2:]) < 2 or a.shape[-1] < 2:
+                    continue
+
+                # Ensure the shapes are so that euclidean_pdist is happy
+                if b.shape[-1] > b.shape[-2]:
+                    b = b[..., 0, :]
+                else:
+                    b = b[..., :, 0]
+
+                n = a.shape[-2]
+                p = n * (n - 1) // 2
+                if p <= b.shape[-1] and p > 0:
+                    b = b[..., :p]
+                else:
+                    n = max(2, int(np.sqrt(b.shape[-1])) // 2)
+                    p = n * (n - 1) // 2
+                    a = a[..., :n, :]
+                    b = b[..., :p]
+
+                # Call
+                if np.shares_memory(a, b):
+                    overlapping += 1
+
+                with np.errstate(over='ignore', invalid='ignore'):
+                    assert_copy_equivalent(gufunc, [a], out=b)
+
+    def test_ufunc_at_manual(self):
+        def check(ufunc, a, ind, b=None):
+            a0 = a.copy()
+            if b is None:
+                ufunc.at(a0, ind.copy())
+                c1 = a0.copy()
+                ufunc.at(a, ind)
+                c2 = a.copy()
+            else:
+                ufunc.at(a0, ind.copy(), b.copy())
+                c1 = a0.copy()
+                ufunc.at(a, ind, b)
+                c2 = a.copy()
+            assert_array_equal(c1, c2)
+
+        # Overlap with index
+        a = np.arange(10000, dtype=np.int16)
+        check(np.invert, a[::-1], a)
+
+        # Overlap with second data array
+        a = np.arange(100, dtype=np.int16)
+        ind = np.arange(0, 100, 2, dtype=np.int16)
+        check(np.add, a, ind, a[25:75])
+
+    def test_unary_ufunc_1d_manual(self):
+        # Exercise ufunc fast-paths (that avoid creation of an `np.nditer`)
+
+        def check(a, b):
+            a_orig = a.copy()
+            b_orig = b.copy()
+
+            b0 = b.copy()
+            c1 = ufunc(a, out=b0)
+            c2 = ufunc(a, out=b)
+            assert_array_equal(c1, c2)
+
+            # Trigger "fancy ufunc loop" code path
+            mask = view_element_first_byte(b).view(np.bool)
+
+            a[...] = a_orig
+            b[...] = b_orig
+            c1 = ufunc(a, out=b.copy(), where=mask.copy()).copy()
+
+            a[...] = a_orig
+            b[...] = b_orig
+            c2 = ufunc(a, out=b, where=mask.copy()).copy()
+
+            # Also, mask overlapping with output
+            a[...] = a_orig
+            b[...] = b_orig
+            c3 = ufunc(a, out=b, where=mask).copy()
+
+            assert_array_equal(c1, c2)
+            assert_array_equal(c1, c3)
+
+        dtypes = [np.int8, np.int16, np.int32, np.int64, np.float32,
+                  np.float64, np.complex64, np.complex128]
+        dtypes = [np.dtype(x) for x in dtypes]
+
+        for dtype in dtypes:
+            if np.issubdtype(dtype, np.integer):
+                ufunc = np.invert
+            else:
+                ufunc = np.reciprocal
+
+            n = 1000
+            k = 10
+            indices = [
+                np.index_exp[:n],
+                np.index_exp[k:k + n],
+                np.index_exp[n - 1::-1],
+                np.index_exp[k + n - 1:k - 1:-1],
+                np.index_exp[:2 * n:2],
+                np.index_exp[k:k + 2 * n:2],
+                np.index_exp[2 * n - 1::-2],
+                np.index_exp[k + 2 * n - 1:k - 1:-2],
+            ]
+
+            for xi, yi in itertools.product(indices, indices):
+                v = np.arange(1, 1 + n * 2 + k, dtype=dtype)
+                x = v[xi]
+                y = v[yi]
+
+                with np.errstate(all='ignore'):
+                    check(x, y)
+
+                    # Scalar cases
+                    check(x[:1], y)
+                    check(x[-1:], y)
+                    check(x[:1].reshape([]), y)
+                    check(x[-1:].reshape([]), y)
+
+    def test_unary_ufunc_where_same(self):
+        # Check behavior at wheremask overlap
+        ufunc = np.invert
+
+        def check(a, out, mask):
+            c1 = ufunc(a, out=out.copy(), where=mask.copy())
+            c2 = ufunc(a, out=out, where=mask)
+            assert_array_equal(c1, c2)
+
+        # Check behavior with same input and output arrays
+        x = np.arange(100).astype(np.bool)
+        check(x, x, x)
+        check(x, x.copy(), x)
+        check(x, x, x.copy())
+
+    @pytest.mark.slow
+    def test_binary_ufunc_1d_manual(self):
+        ufunc = np.add
+
+        def check(a, b, c):
+            c0 = c.copy()
+            c1 = ufunc(a, b, out=c0)
+            c2 = ufunc(a, b, out=c)
+            assert_array_equal(c1, c2)
+
+        for dtype in [np.int8, np.int16, np.int32, np.int64,
+                      np.float32, np.float64, np.complex64, np.complex128]:
+            # Check different data dependency orders
+
+            n = 1000
+            k = 10
+
+            indices = []
+            for p in [1, 2]:
+                indices.extend([
+                    np.index_exp[:p * n:p],
+                    np.index_exp[k:k + p * n:p],
+                    np.index_exp[p * n - 1::-p],
+                    np.index_exp[k + p * n - 1:k - 1:-p],
+                ])
+
+            for x, y, z in itertools.product(indices, indices, indices):
+                v = np.arange(6 * n).astype(dtype)
+                x = v[x]
+                y = v[y]
+                z = v[z]
+
+                check(x, y, z)
+
+                # Scalar cases
+                check(x[:1], y, z)
+                check(x[-1:], y, z)
+                check(x[:1].reshape([]), y, z)
+                check(x[-1:].reshape([]), y, z)
+                check(x, y[:1], z)
+                check(x, y[-1:], z)
+                check(x, y[:1].reshape([]), z)
+                check(x, y[-1:].reshape([]), z)
+
+    def test_inplace_op_simple_manual(self):
+        rng = np.random.RandomState(1234)
+        x = rng.rand(200, 200)  # bigger than bufsize
+
+        x += x.T
+        assert_array_equal(x - x.T, 0)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_mem_policy.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_mem_policy.py
new file mode 100644
index 0000000000000000000000000000000000000000..6ad042a3da3e68a267235bc75916f10c7c02c013
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_mem_policy.py
@@ -0,0 +1,453 @@
+import asyncio
+import gc
+import os
+import sys
+import sysconfig
+import threading
+
+import pytest
+
+import numpy as np
+from numpy._core.multiarray import get_handler_name
+from numpy.testing import IS_EDITABLE, IS_WASM, extbuild
+
+
+@pytest.fixture
+def get_module(tmp_path):
+    """ Add a memory policy that returns a false pointer 64 bytes into the
+    actual allocation, and fill the prefix with some text. Then check at each
+    memory manipulation that the prefix exists, to make sure all alloc/realloc/
+    free/calloc go via the functions here.
+    """
+    if sys.platform.startswith('cygwin'):
+        pytest.skip('link fails on cygwin')
+    if IS_WASM:
+        pytest.skip("Can't build module inside Wasm")
+    if IS_EDITABLE:
+        pytest.skip("Can't build module for editable install")
+
+    functions = [
+        ("get_default_policy", "METH_NOARGS", """
+             Py_INCREF(PyDataMem_DefaultHandler);
+             return PyDataMem_DefaultHandler;
+         """),
+        ("set_secret_data_policy", "METH_NOARGS", """
+             PyObject *secret_data =
+                 PyCapsule_New(&secret_data_handler, "mem_handler", NULL);
+             if (secret_data == NULL) {
+                 return NULL;
+             }
+             PyObject *old = PyDataMem_SetHandler(secret_data);
+             Py_DECREF(secret_data);
+             return old;
+         """),
+        ("set_wrong_capsule_name_data_policy", "METH_NOARGS", """
+             PyObject *wrong_name_capsule =
+                 PyCapsule_New(&secret_data_handler, "not_mem_handler", NULL);
+             if (wrong_name_capsule == NULL) {
+                 return NULL;
+             }
+             PyObject *old = PyDataMem_SetHandler(wrong_name_capsule);
+             Py_DECREF(wrong_name_capsule);
+             return old;
+         """),
+        ("set_old_policy", "METH_O", """
+             PyObject *old;
+             if (args != NULL && PyCapsule_CheckExact(args)) {
+                 old = PyDataMem_SetHandler(args);
+             }
+             else {
+                 old = PyDataMem_SetHandler(NULL);
+             }
+             return old;
+         """),
+        ("get_array", "METH_NOARGS", """
+            char *buf = (char *)malloc(20);
+            npy_intp dims[1];
+            dims[0] = 20;
+            PyArray_Descr *descr =  PyArray_DescrNewFromType(NPY_UINT8);
+            return PyArray_NewFromDescr(&PyArray_Type, descr, 1, dims, NULL,
+                                        buf, NPY_ARRAY_WRITEABLE, NULL);
+         """),
+        ("set_own", "METH_O", """
+            if (!PyArray_Check(args)) {
+                PyErr_SetString(PyExc_ValueError,
+                             "need an ndarray");
+                return NULL;
+            }
+            PyArray_ENABLEFLAGS((PyArrayObject*)args, NPY_ARRAY_OWNDATA);
+            // Maybe try this too?
+            // PyArray_BASE(PyArrayObject *)args) = NULL;
+            Py_RETURN_NONE;
+         """),
+        ("get_array_with_base", "METH_NOARGS", """
+            char *buf = (char *)malloc(20);
+            npy_intp dims[1];
+            dims[0] = 20;
+            PyArray_Descr *descr =  PyArray_DescrNewFromType(NPY_UINT8);
+            PyObject *arr = PyArray_NewFromDescr(&PyArray_Type, descr, 1, dims,
+                                                 NULL, buf,
+                                                 NPY_ARRAY_WRITEABLE, NULL);
+            if (arr == NULL) return NULL;
+            PyObject *obj = PyCapsule_New(buf, "buf capsule",
+                                          (PyCapsule_Destructor)&warn_on_free);
+            if (obj == NULL) {
+                Py_DECREF(arr);
+                return NULL;
+            }
+            if (PyArray_SetBaseObject((PyArrayObject *)arr, obj) < 0) {
+                Py_DECREF(arr);
+                Py_DECREF(obj);
+                return NULL;
+            }
+            return arr;
+
+         """),
+    ]
+    prologue = '''
+        #define NPY_TARGET_VERSION NPY_1_22_API_VERSION
+        #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION
+        #include <numpy/arrayobject.h>
+        /*
+         * This struct allows the dynamic configuration of the allocator funcs
+         * of the `secret_data_allocator`. It is provided here for
+         * demonstration purposes, as a valid `ctx` use-case scenario.
+         */
+        typedef struct {
+            void *(*malloc)(size_t);
+            void *(*calloc)(size_t, size_t);
+            void *(*realloc)(void *, size_t);
+            void (*free)(void *);
+        } SecretDataAllocatorFuncs;
+
+        NPY_NO_EXPORT void *
+        shift_alloc(void *ctx, size_t sz) {
+            SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx;
+            char *real = (char *)funcs->malloc(sz + 64);
+            if (real == NULL) {
+                return NULL;
+            }
+            snprintf(real, 64, "originally allocated %ld", (unsigned long)sz);
+            return (void *)(real + 64);
+        }
+        NPY_NO_EXPORT void *
+        shift_zero(void *ctx, size_t sz, size_t cnt) {
+            SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx;
+            char *real = (char *)funcs->calloc(sz + 64, cnt);
+            if (real == NULL) {
+                return NULL;
+            }
+            snprintf(real, 64, "originally allocated %ld via zero",
+                     (unsigned long)sz);
+            return (void *)(real + 64);
+        }
+        NPY_NO_EXPORT void
+        shift_free(void *ctx, void * p, npy_uintp sz) {
+            SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx;
+            if (p == NULL) {
+                return ;
+            }
+            char *real = (char *)p - 64;
+            if (strncmp(real, "originally allocated", 20) != 0) {
+                fprintf(stdout, "uh-oh, unmatched shift_free, "
+                        "no appropriate prefix\\n");
+                /* Make C runtime crash by calling free on the wrong address */
+                funcs->free((char *)p + 10);
+                /* funcs->free(real); */
+            }
+            else {
+                npy_uintp i = (npy_uintp)atoi(real +20);
+                if (i != sz) {
+                    fprintf(stderr, "uh-oh, unmatched shift_free"
+                            "(ptr, %ld) but allocated %ld\\n", sz, i);
+                    /* This happens in some places, only print */
+                    funcs->free(real);
+                }
+                else {
+                    funcs->free(real);
+                }
+            }
+        }
+        NPY_NO_EXPORT void *
+        shift_realloc(void *ctx, void * p, npy_uintp sz) {
+            SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx;
+            if (p != NULL) {
+                char *real = (char *)p - 64;
+                if (strncmp(real, "originally allocated", 20) != 0) {
+                    fprintf(stdout, "uh-oh, unmatched shift_realloc\\n");
+                    return realloc(p, sz);
+                }
+                return (void *)((char *)funcs->realloc(real, sz + 64) + 64);
+            }
+            else {
+                char *real = (char *)funcs->realloc(p, sz + 64);
+                if (real == NULL) {
+                    return NULL;
+                }
+                snprintf(real, 64, "originally allocated "
+                         "%ld  via realloc", (unsigned long)sz);
+                return (void *)(real + 64);
+            }
+        }
+        /* As an example, we use the standard {m|c|re}alloc/free funcs. */
+        static SecretDataAllocatorFuncs secret_data_handler_ctx = {
+            malloc,
+            calloc,
+            realloc,
+            free
+        };
+        static PyDataMem_Handler secret_data_handler = {
+            "secret_data_allocator",
+            1,
+            {
+                &secret_data_handler_ctx, /* ctx */
+                shift_alloc,              /* malloc */
+                shift_zero,               /* calloc */
+                shift_realloc,            /* realloc */
+                shift_free                /* free */
+            }
+        };
+        void warn_on_free(void *capsule) {
+            PyErr_WarnEx(PyExc_UserWarning, "in warn_on_free", 1);
+            void * obj = PyCapsule_GetPointer(capsule,
+                                              PyCapsule_GetName(capsule));
+            free(obj);
+        };
+        '''
+    more_init = "import_array();"
+    try:
+        import mem_policy
+        return mem_policy
+    except ImportError:
+        pass
+    # if it does not exist, build and load it
+    if sysconfig.get_platform() == "win-arm64":
+        pytest.skip("Meson unable to find MSVC linker on win-arm64")
+    return extbuild.build_and_import_extension('mem_policy',
+                                               functions,
+                                               prologue=prologue,
+                                               include_dirs=[np.get_include()],
+                                               build_dir=tmp_path,
+                                               more_init=more_init)
+
+
+def test_set_policy(get_module):
+
+    get_handler_name = np._core.multiarray.get_handler_name
+    get_handler_version = np._core.multiarray.get_handler_version
+    orig_policy_name = get_handler_name()
+
+    a = np.arange(10).reshape((2, 5))  # a doesn't own its own data
+    assert get_handler_name(a) is None
+    assert get_handler_version(a) is None
+    assert get_handler_name(a.base) == orig_policy_name
+    assert get_handler_version(a.base) == 1
+
+    orig_policy = get_module.set_secret_data_policy()
+
+    b = np.arange(10).reshape((2, 5))  # b doesn't own its own data
+    assert get_handler_name(b) is None
+    assert get_handler_version(b) is None
+    assert get_handler_name(b.base) == 'secret_data_allocator'
+    assert get_handler_version(b.base) == 1
+
+    if orig_policy_name == 'default_allocator':
+        get_module.set_old_policy(None)  # tests PyDataMem_SetHandler(NULL)
+        assert get_handler_name() == 'default_allocator'
+    else:
+        get_module.set_old_policy(orig_policy)
+        assert get_handler_name() == orig_policy_name
+
+    with pytest.raises(ValueError,
+                       match="Capsule must be named 'mem_handler'"):
+        get_module.set_wrong_capsule_name_data_policy()
+
+
+def test_default_policy_singleton(get_module):
+    get_handler_name = np._core.multiarray.get_handler_name
+
+    # set the policy to default
+    orig_policy = get_module.set_old_policy(None)
+
+    assert get_handler_name() == 'default_allocator'
+
+    # re-set the policy to default
+    def_policy_1 = get_module.set_old_policy(None)
+
+    assert get_handler_name() == 'default_allocator'
+
+    # set the policy to original
+    def_policy_2 = get_module.set_old_policy(orig_policy)
+
+    # since default policy is a singleton,
+    # these should be the same object
+    assert def_policy_1 is def_policy_2 is get_module.get_default_policy()
+
+
+def test_policy_propagation(get_module):
+    # The memory policy goes hand-in-hand with flags.owndata
+
+    class MyArr(np.ndarray):
+        pass
+
+    get_handler_name = np._core.multiarray.get_handler_name
+    orig_policy_name = get_handler_name()
+    a = np.arange(10).view(MyArr).reshape((2, 5))
+    assert get_handler_name(a) is None
+    assert a.flags.owndata is False
+
+    assert get_handler_name(a.base) is None
+    assert a.base.flags.owndata is False
+
+    assert get_handler_name(a.base.base) == orig_policy_name
+    assert a.base.base.flags.owndata is True
+
+
+async def concurrent_context1(get_module, orig_policy_name, event):
+    if orig_policy_name == 'default_allocator':
+        get_module.set_secret_data_policy()
+        assert get_handler_name() == 'secret_data_allocator'
+    else:
+        get_module.set_old_policy(None)
+        assert get_handler_name() == 'default_allocator'
+    event.set()
+
+
+async def concurrent_context2(get_module, orig_policy_name, event):
+    await event.wait()
+    # the policy is not affected by changes in parallel contexts
+    assert get_handler_name() == orig_policy_name
+    # change policy in the child context
+    if orig_policy_name == 'default_allocator':
+        get_module.set_secret_data_policy()
+        assert get_handler_name() == 'secret_data_allocator'
+    else:
+        get_module.set_old_policy(None)
+        assert get_handler_name() == 'default_allocator'
+
+
+async def async_test_context_locality(get_module):
+    orig_policy_name = np._core.multiarray.get_handler_name()
+
+    event = asyncio.Event()
+    # the child contexts inherit the parent policy
+    concurrent_task1 = asyncio.create_task(
+        concurrent_context1(get_module, orig_policy_name, event))
+    concurrent_task2 = asyncio.create_task(
+        concurrent_context2(get_module, orig_policy_name, event))
+    await concurrent_task1
+    await concurrent_task2
+
+    # the parent context is not affected by child policy changes
+    assert np._core.multiarray.get_handler_name() == orig_policy_name
+
+
+def test_context_locality(get_module):
+    if (sys.implementation.name == 'pypy'
+            and sys.pypy_version_info[:3] < (7, 3, 6)):
+        pytest.skip('no context-locality support in PyPy < 7.3.6')
+    asyncio.run(async_test_context_locality(get_module))
+
+
+def concurrent_thread1(get_module, event):
+    get_module.set_secret_data_policy()
+    assert np._core.multiarray.get_handler_name() == 'secret_data_allocator'
+    event.set()
+
+
+def concurrent_thread2(get_module, event):
+    event.wait()
+    # the policy is not affected by changes in parallel threads
+    assert np._core.multiarray.get_handler_name() == 'default_allocator'
+    # change policy in the child thread
+    get_module.set_secret_data_policy()
+
+
+def test_thread_locality(get_module):
+    orig_policy_name = np._core.multiarray.get_handler_name()
+
+    event = threading.Event()
+    # the child threads do not inherit the parent policy
+    concurrent_task1 = threading.Thread(target=concurrent_thread1,
+                                        args=(get_module, event))
+    concurrent_task2 = threading.Thread(target=concurrent_thread2,
+                                        args=(get_module, event))
+    concurrent_task1.start()
+    concurrent_task2.start()
+    concurrent_task1.join()
+    concurrent_task2.join()
+
+    # the parent thread is not affected by child policy changes
+    assert np._core.multiarray.get_handler_name() == orig_policy_name
+
+
+@pytest.mark.skip(reason="too slow, see gh-23975")
+def test_new_policy(get_module):
+    a = np.arange(10)
+    orig_policy_name = np._core.multiarray.get_handler_name(a)
+
+    orig_policy = get_module.set_secret_data_policy()
+
+    b = np.arange(10)
+    assert np._core.multiarray.get_handler_name(b) == 'secret_data_allocator'
+
+    # test array manipulation. This is slow
+    if orig_policy_name == 'default_allocator':
+        # when the np._core.test tests recurse into this test, the
+        # policy will be set so this "if" will be false, preventing
+        # infinite recursion
+        #
+        # if needed, debug this by
+        # - running tests with -- -s (to not capture stdout/stderr
+        # - setting verbose=2
+        # - setting extra_argv=['-vv'] here
+        assert np._core.test('full', verbose=1, extra_argv=[])
+        # also try the ma tests, the pickling test is quite tricky
+        assert np.ma.test('full', verbose=1, extra_argv=[])
+
+    get_module.set_old_policy(orig_policy)
+
+    c = np.arange(10)
+    assert np._core.multiarray.get_handler_name(c) == orig_policy_name
+
+
+@pytest.mark.xfail(sys.implementation.name == "pypy",
+                   reason=("bad interaction between getenv and "
+                           "os.environ inside pytest"))
+@pytest.mark.parametrize("policy", ["0", "1", None])
+@pytest.mark.thread_unsafe(reason="modifies environment variables")
+def test_switch_owner(get_module, policy):
+    a = get_module.get_array()
+    assert np._core.multiarray.get_handler_name(a) is None
+    get_module.set_own(a)
+
+    if policy is None:
+        # See what we expect to be set based on the env variable
+        policy = os.getenv("NUMPY_WARN_IF_NO_MEM_POLICY", "0") == "1"
+        oldval = None
+    else:
+        policy = policy == "1"
+        oldval = np._core._multiarray_umath._set_numpy_warn_if_no_mem_policy(
+            policy)
+    try:
+        # The policy should be NULL, so we have to assume we can call
+        # "free".  A warning is given if the policy == "1"
+        if policy:
+            with pytest.warns(RuntimeWarning) as w:
+                del a
+                gc.collect()
+        else:
+            del a
+            gc.collect()
+
+    finally:
+        if oldval is not None:
+            np._core._multiarray_umath._set_numpy_warn_if_no_mem_policy(oldval)
+
+
+def test_owner_is_base(get_module):
+    a = get_module.get_array_with_base()
+    with pytest.warns(UserWarning, match='warn_on_free'):
+        del a
+        gc.collect()
+        gc.collect()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_memmap.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_memmap.py
new file mode 100644
index 0000000000000000000000000000000000000000..0b186a96eb18f39fc4fb2686a47d1c94f8ccbf7e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_memmap.py
@@ -0,0 +1,248 @@
+import mmap
+import os
+import sys
+import warnings
+from pathlib import Path
+from tempfile import NamedTemporaryFile, TemporaryFile
+
+import pytest
+
+from numpy import (
+    add,
+    allclose,
+    arange,
+    asarray,
+    average,
+    isscalar,
+    memmap,
+    multiply,
+    ndarray,
+    prod,
+    subtract,
+    sum,
+)
+from numpy.testing import (
+    IS_PYPY,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    break_cycles,
+)
+
+
+@pytest.mark.thread_unsafe(reason="setup & memmap is thread-unsafe (gh-29126)")
+class TestMemmap:
+    def setup_method(self):
+        self.tmpfp = NamedTemporaryFile(prefix='mmap')
+        self.shape = (3, 4)
+        self.dtype = 'float32'
+        self.data = arange(12, dtype=self.dtype)
+        self.data.resize(self.shape)
+
+    def teardown_method(self):
+        self.tmpfp.close()
+        self.data = None
+        if IS_PYPY:
+            break_cycles()
+            break_cycles()
+
+    def test_roundtrip(self):
+        # Write data to file
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+',
+                    shape=self.shape)
+        fp[:] = self.data[:]
+        del fp  # Test __del__ machinery, which handles cleanup
+
+        # Read data back from file
+        newfp = memmap(self.tmpfp, dtype=self.dtype, mode='r',
+                       shape=self.shape)
+        assert_(allclose(self.data, newfp))
+        assert_array_equal(self.data, newfp)
+        assert_equal(newfp.flags.writeable, False)
+
+    def test_open_with_filename(self, tmp_path):
+        tmpname = tmp_path / 'mmap'
+        fp = memmap(tmpname, dtype=self.dtype, mode='w+',
+                       shape=self.shape)
+        fp[:] = self.data[:]
+        del fp
+
+    def test_unnamed_file(self):
+        with TemporaryFile() as f:
+            fp = memmap(f, dtype=self.dtype, shape=self.shape)
+            del fp
+
+    def test_attributes(self):
+        offset = 1
+        mode = "w+"
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode=mode,
+                    shape=self.shape, offset=offset)
+        assert_equal(offset, fp.offset)
+        assert_equal(mode, fp.mode)
+        del fp
+
+    def test_filename(self, tmp_path):
+        tmpname = tmp_path / "mmap"
+        fp = memmap(tmpname, dtype=self.dtype, mode='w+',
+                       shape=self.shape)
+        abspath = Path(os.path.abspath(tmpname))
+        fp[:] = self.data[:]
+        assert_equal(abspath, fp.filename)
+        b = fp[:1]
+        assert_equal(abspath, b.filename)
+        del b
+        del fp
+
+    def test_path(self, tmp_path):
+        tmpname = tmp_path / "mmap"
+        fp = memmap(Path(tmpname), dtype=self.dtype, mode='w+',
+                       shape=self.shape)
+        # os.path.realpath does not resolve symlinks on Windows
+        # see: https://bugs.python.org/issue9949
+        # use Path.resolve, just as memmap class does internally
+        abspath = str(Path(tmpname).resolve())
+        fp[:] = self.data[:]
+        assert_equal(abspath, str(fp.filename.resolve()))
+        b = fp[:1]
+        assert_equal(abspath, str(b.filename.resolve()))
+        del b
+        del fp
+
+    def test_filename_fileobj(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode="w+",
+                    shape=self.shape)
+        assert_equal(fp.filename, self.tmpfp.name)
+
+    @pytest.mark.skipif(sys.platform == 'gnu0',
+                        reason="Known to fail on hurd")
+    def test_flush(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+',
+                    shape=self.shape)
+        fp[:] = self.data[:]
+        assert_equal(fp[0], self.data[0])
+        fp.flush()
+
+    def test_del(self):
+        # Make sure a view does not delete the underlying mmap
+        fp_base = memmap(self.tmpfp, dtype=self.dtype, mode='w+',
+                    shape=self.shape)
+        fp_base[0] = 5
+        fp_view = fp_base[0:1]
+        assert_equal(fp_view[0], 5)
+        del fp_view
+        # Should still be able to access and assign values after
+        # deleting the view
+        assert_equal(fp_base[0], 5)
+        fp_base[0] = 6
+        assert_equal(fp_base[0], 6)
+
+    def test_arithmetic_drops_references(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+',
+                    shape=self.shape)
+        tmp = (fp + 10)
+        if isinstance(tmp, memmap):
+            assert_(tmp._mmap is not fp._mmap)
+
+    def test_indexing_drops_references(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+',
+                    shape=self.shape)
+        tmp = fp[(1, 2), (2, 3)]
+        if isinstance(tmp, memmap):
+            assert_(tmp._mmap is not fp._mmap)
+
+    def test_slicing_keeps_references(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+',
+                    shape=self.shape)
+        assert_(fp[:2, :2]._mmap is fp._mmap)
+
+    def test_view(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, shape=self.shape)
+        new1 = fp.view()
+        new2 = new1.view()
+        assert_(new1.base is fp)
+        assert_(new2.base is fp)
+        new_array = asarray(fp)
+        assert_(new_array.base is fp)
+
+    def test_ufunc_return_ndarray(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, shape=self.shape)
+        fp[:] = self.data
+
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore', "np.average currently does not preserve", FutureWarning)
+            for unary_op in [sum, average, prod]:
+                result = unary_op(fp)
+                assert_(isscalar(result))
+                assert_(result.__class__ is self.data[0, 0].__class__)
+
+                assert_(unary_op(fp, axis=0).__class__ is ndarray)
+                assert_(unary_op(fp, axis=1).__class__ is ndarray)
+
+        for binary_op in [add, subtract, multiply]:
+            assert_(binary_op(fp, self.data).__class__ is ndarray)
+            assert_(binary_op(self.data, fp).__class__ is ndarray)
+            assert_(binary_op(fp, fp).__class__ is ndarray)
+
+        fp += 1
+        assert fp.__class__ is memmap
+        add(fp, 1, out=fp)
+        assert fp.__class__ is memmap
+
+    def test_getitem(self):
+        fp = memmap(self.tmpfp, dtype=self.dtype, shape=self.shape)
+        fp[:] = self.data
+
+        assert_(fp[1:, :-1].__class__ is memmap)
+        # Fancy indexing returns a copy that is not memmapped
+        assert_(fp[[0, 1]].__class__ is ndarray)
+
+    def test_memmap_subclass(self):
+        class MemmapSubClass(memmap):
+            pass
+
+        fp = MemmapSubClass(self.tmpfp, dtype=self.dtype, shape=self.shape)
+        fp[:] = self.data
+
+        # We keep previous behavior for subclasses of memmap, i.e. the
+        # ufunc and __getitem__ output is never turned into a ndarray
+        assert_(sum(fp, axis=0).__class__ is MemmapSubClass)
+        assert_(sum(fp).__class__ is MemmapSubClass)
+        assert_(fp[1:, :-1].__class__ is MemmapSubClass)
+        assert fp[[0, 1]].__class__ is MemmapSubClass
+
+    def test_mmap_offset_greater_than_allocation_granularity(self):
+        size = 5 * mmap.ALLOCATIONGRANULARITY
+        offset = mmap.ALLOCATIONGRANULARITY + 1
+        fp = memmap(self.tmpfp, shape=size, mode='w+', offset=offset)
+        assert_(fp.offset == offset)
+
+    def test_empty_array_with_offset_multiple_of_allocation_granularity(self):
+        self.tmpfp.write(b'a' * mmap.ALLOCATIONGRANULARITY)
+        size = 0
+        offset = mmap.ALLOCATIONGRANULARITY
+        fp = memmap(self.tmpfp, shape=size, mode='w+', offset=offset)
+        assert_equal(fp.offset, offset)
+
+    def test_no_shape(self):
+        self.tmpfp.write(b'a' * 16)
+        mm = memmap(self.tmpfp, dtype='float64')
+        assert_equal(mm.shape, (2,))
+
+    def test_empty_array(self):
+        # gh-12653
+        with pytest.raises(ValueError, match='empty file'):
+            memmap(self.tmpfp, shape=(0, 4), mode='r')
+
+        # gh-27723
+        # empty memmap works with mode in ('w+','r+')
+        memmap(self.tmpfp, shape=(0, 4), mode='w+')
+
+        # ok now the file is not empty
+        memmap(self.tmpfp, shape=(0, 4), mode='w+')
+
+    def test_shape_type(self):
+        memmap(self.tmpfp, shape=3, mode='w+')
+        memmap(self.tmpfp, shape=self.shape, mode='w+')
+        memmap(self.tmpfp, shape=list(self.shape), mode='w+')
+        memmap(self.tmpfp, shape=asarray(self.shape), mode='w+')
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multiarray.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multiarray.py
new file mode 100644
index 0000000000000000000000000000000000000000..824c015cb03bcd98b7cc253c6af341764bb50c80
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multiarray.py
@@ -0,0 +1,11031 @@
+import builtins
+import collections.abc
+import ctypes
+import functools
+import gc
+import importlib
+import inspect
+import io
+import itertools
+import mmap
+import operator
+import os
+import pathlib
+import pickle
+import re
+import subprocess
+import sys
+import tempfile
+import textwrap
+import warnings
+import weakref
+from contextlib import contextmanager
+
+# Need to test an object that does not fully implement math interface
+from datetime import datetime, timedelta
+from decimal import Decimal
+
+import pytest
+
+import numpy as np
+import numpy._core._multiarray_tests as _multiarray_tests
+from numpy._core._rational_tests import rational
+from numpy._core.multiarray import _get_ndarray_c_version, dot
+from numpy._core.tests._locales import CommaDecimalPointLocale
+from numpy.exceptions import AxisError, ComplexWarning
+from numpy.lib import stride_tricks
+from numpy.lib.recfunctions import repack_fields
+from numpy.testing import (
+    BLAS_SUPPORTS_FPE,
+    HAS_REFCOUNT,
+    IS_64BIT,
+    IS_PYPY,
+    IS_PYSTON,
+    IS_WASM,
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_compare,
+    assert_array_equal,
+    assert_array_less,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+    break_cycles,
+    check_support_sve,
+    runstring,
+    temppath,
+)
+from numpy.testing._private.utils import _no_tracing, requires_memory
+
+
+def assert_arg_sorted(arr, arg):
+    # resulting array should be sorted and arg values should be unique
+    assert_equal(arr[arg], np.sort(arr))
+    assert_equal(np.sort(arg), np.arange(len(arg)))
+
+
+def assert_arr_partitioned(kth, k, arr_part):
+    assert_equal(arr_part[k], kth)
+    assert_array_compare(operator.__le__, arr_part[:k], kth)
+    assert_array_compare(operator.__ge__, arr_part[k:], kth)
+
+
+def _aligned_zeros(shape, dtype=float, order="C", align=None):
+    """
+    Allocate a new ndarray with aligned memory.
+
+    The ndarray is guaranteed *not* aligned to twice the requested alignment.
+    Eg, if align=4, guarantees it is not aligned to 8. If align=None uses
+    dtype.alignment."""
+    dtype = np.dtype(dtype)
+    if dtype == np.dtype(object):
+        # Can't do this, fall back to standard allocation (which
+        # should always be sufficiently aligned)
+        if align is not None:
+            raise ValueError("object array alignment not supported")
+        return np.zeros(shape, dtype=dtype, order=order)
+    if align is None:
+        align = dtype.alignment
+    if not hasattr(shape, '__len__'):
+        shape = (shape,)
+    size = functools.reduce(operator.mul, shape) * dtype.itemsize
+    buf = np.empty(size + 2 * align + 1, np.uint8)
+
+    ptr = buf.__array_interface__['data'][0]
+    offset = ptr % align
+    if offset != 0:
+        offset = align - offset
+    if (ptr % (2 * align)) == 0:
+        offset += align
+
+    # Note: slices producing 0-size arrays do not necessarily change
+    # data pointer --- so we use and allocate size+1
+    buf = buf[offset:offset + size + 1][:-1]
+    buf.fill(0)
+    data = np.ndarray(shape, dtype, buf, order=order)
+    return data
+
+
+class TestFlags:
+    def test_writeable(self):
+        arr = np.arange(10)
+        mydict = locals()
+        arr.flags.writeable = False
+        assert_raises(ValueError, runstring, 'arr[0] = 3', mydict)
+        arr.flags.writeable = True
+        arr[0] = 5
+        arr[0] = 0
+
+    def test_writeable_any_base(self):
+        # Ensure that any base being writeable is sufficient to change flag;
+        # this is especially interesting for arrays from an array interface.
+        arr = np.arange(10)
+
+        class subclass(np.ndarray):
+            pass
+
+        # Create subclass so base will not be collapsed, this is OK to change
+        view1 = arr.view(subclass)
+        view2 = view1[...]
+        arr.flags.writeable = False
+        view2.flags.writeable = False
+        view2.flags.writeable = True  # Can be set to True again.
+
+        arr = np.arange(10)
+
+        class frominterface:
+            def __init__(self, arr):
+                self.arr = arr
+                self.__array_interface__ = arr.__array_interface__
+
+        view1 = np.asarray(frominterface)
+        view2 = view1[...]
+        view2.flags.writeable = False
+        view2.flags.writeable = True
+
+        view1.flags.writeable = False
+        view2.flags.writeable = False
+        with assert_raises(ValueError):
+            # Must assume not writeable, since only base is not:
+            view2.flags.writeable = True
+
+    def test_writeable_from_readonly(self):
+        # gh-9440 - make sure fromstring, from buffer on readonly buffers
+        # set writeable False
+        data = b'\x00' * 100
+        vals = np.frombuffer(data, 'B')
+        assert_raises(ValueError, vals.setflags, write=True)
+        types = np.dtype([('vals', 'u1'), ('res3', 'S4')])
+        values = np._core.records.fromstring(data, types)
+        vals = values['vals']
+        assert_raises(ValueError, vals.setflags, write=True)
+
+    def test_writeable_from_buffer(self):
+        data = bytearray(b'\x00' * 100)
+        vals = np.frombuffer(data, 'B')
+        assert_(vals.flags.writeable)
+        vals.setflags(write=False)
+        assert_(vals.flags.writeable is False)
+        vals.setflags(write=True)
+        assert_(vals.flags.writeable)
+        types = np.dtype([('vals', 'u1'), ('res3', 'S4')])
+        values = np._core.records.fromstring(data, types)
+        vals = values['vals']
+        assert_(vals.flags.writeable)
+        vals.setflags(write=False)
+        assert_(vals.flags.writeable is False)
+        vals.setflags(write=True)
+        assert_(vals.flags.writeable)
+
+    @pytest.mark.skipif(IS_PYPY, reason="PyPy always copies")
+    def test_writeable_pickle(self):
+        import pickle
+        # Small arrays will be copied without setting base.
+        # See condition for using PyArray_SetBaseObject in
+        # array_setstate.
+        a = np.arange(1000)
+        for v in range(pickle.HIGHEST_PROTOCOL):
+            vals = pickle.loads(pickle.dumps(a, v))
+            assert_(vals.flags.writeable)
+            assert_(isinstance(vals.base, bytes))
+
+    def test_writeable_from_c_data(self):
+        # Test that the writeable flag can be changed for an array wrapping
+        # low level C-data, but not owning its data.
+        # Also see that this is deprecated to change from python.
+        from numpy._core._multiarray_tests import get_c_wrapping_array
+
+        arr_writeable = get_c_wrapping_array(True)
+        assert not arr_writeable.flags.owndata
+        assert arr_writeable.flags.writeable
+        view = arr_writeable[...]
+
+        # Toggling the writeable flag works on the view:
+        view.flags.writeable = False
+        assert not view.flags.writeable
+        view.flags.writeable = True
+        assert view.flags.writeable
+        # Flag can be unset on the arr_writeable:
+        arr_writeable.flags.writeable = False
+
+        arr_readonly = get_c_wrapping_array(False)
+        assert not arr_readonly.flags.owndata
+        assert not arr_readonly.flags.writeable
+
+        for arr in [arr_writeable, arr_readonly]:
+            view = arr[...]
+            view.flags.writeable = False  # make sure it is readonly
+            arr.flags.writeable = False
+            assert not arr.flags.writeable
+
+            with assert_raises(ValueError):
+                view.flags.writeable = True
+
+            with assert_raises(ValueError):
+                arr.flags.writeable = True
+
+    def test_warnonwrite(self):
+        a = np.arange(10)
+        a.flags._warn_on_write = True
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always')
+            a[1] = 10
+            a[2] = 10
+            # only warn once
+            assert_(len(w) == 1)
+
+    @pytest.mark.parametrize(["flag", "flag_value", "writeable"],
+            [("writeable", True, True),
+             # Delete _warn_on_write after deprecation and simplify
+             # the parameterization:
+             ("_warn_on_write", True, False),
+             ("writeable", False, False)])
+    def test_readonly_flag_protocols(self, flag, flag_value, writeable):
+        a = np.arange(10)
+        setattr(a.flags, flag, flag_value)
+
+        class MyArr:
+            __array_struct__ = a.__array_struct__
+
+        assert memoryview(a).readonly is not writeable
+        assert a.__array_interface__['data'][1] is not writeable
+        assert np.asarray(MyArr()).flags.writeable is writeable
+
+    def test_otherflags(self):
+        arr = np.arange(10)
+        assert_equal(arr.flags.carray, True)
+        assert_equal(arr.flags['C'], True)
+        assert_equal(arr.flags.farray, False)
+        assert_equal(arr.flags.behaved, True)
+        assert_equal(arr.flags.fnc, False)
+        assert_equal(arr.flags.forc, True)
+        assert_equal(arr.flags.owndata, True)
+        assert_equal(arr.flags.writeable, True)
+        assert_equal(arr.flags.aligned, True)
+        assert_equal(arr.flags.writebackifcopy, False)
+        assert_equal(arr.flags['X'], False)
+        assert_equal(arr.flags['WRITEBACKIFCOPY'], False)
+
+    def test_string_align(self):
+        a = np.zeros(4, dtype=np.dtype('|S4'))
+        assert_(a.flags.aligned)
+        # not power of two are accessed byte-wise and thus considered aligned
+        a = np.zeros(5, dtype=np.dtype('|S4'))
+        assert_(a.flags.aligned)
+
+    def test_void_align(self):
+        a = np.zeros(4, dtype=np.dtype([("a", "i4"), ("b", "i4")]))
+        assert_(a.flags.aligned)
+
+    @pytest.mark.parametrize("row_size", [5, 1 << 16])
+    @pytest.mark.parametrize("row_count", [1, 5])
+    @pytest.mark.parametrize("ndmin", [0, 1, 2])
+    def test_xcontiguous_load_txt(self, row_size, row_count, ndmin):
+        s = io.StringIO('\n'.join(['1.0 ' * row_size] * row_count))
+        a = np.loadtxt(s, ndmin=ndmin)
+
+        assert a.flags.c_contiguous
+        x = [i for i in a.shape if i != 1]
+        assert a.flags.f_contiguous == (len(x) <= 1)
+
+
+class TestHash:
+    # see #3793
+    def test_int(self):
+        for st, ut, s in [(np.int8, np.uint8, 8),
+                          (np.int16, np.uint16, 16),
+                          (np.int32, np.uint32, 32),
+                          (np.int64, np.uint64, 64)]:
+            for i in range(1, s):
+                assert_equal(hash(st(-2**i)), hash(-2**i),
+                             err_msg="%r: -2**%d" % (st, i))
+                assert_equal(hash(st(2**(i - 1))), hash(2**(i - 1)),
+                             err_msg="%r: 2**%d" % (st, i - 1))
+                assert_equal(hash(st(2**i - 1)), hash(2**i - 1),
+                             err_msg="%r: 2**%d - 1" % (st, i))
+
+                i = max(i - 1, 1)
+                assert_equal(hash(ut(2**(i - 1))), hash(2**(i - 1)),
+                             err_msg="%r: 2**%d" % (ut, i - 1))
+                assert_equal(hash(ut(2**i - 1)), hash(2**i - 1),
+                             err_msg="%r: 2**%d - 1" % (ut, i))
+
+
+class TestAttributes:
+    def _create_arrays(self):
+        one = np.arange(10)
+        two = np.arange(20).reshape(4, 5)
+        three = np.arange(60, dtype=np.float64).reshape(2, 5, 6)
+        return one, two, three
+
+    def test_attributes(self):
+        one, two, three = self._create_arrays()
+        assert_equal(one.shape, (10,))
+        assert_equal(two.shape, (4, 5))
+        assert_equal(three.shape, (2, 5, 6))
+        three.shape = (10, 3, 2)
+        assert_equal(three.shape, (10, 3, 2))
+        three.shape = (2, 5, 6)
+        assert_equal(one.strides, (one.itemsize,))
+        num = two.itemsize
+        assert_equal(two.strides, (5 * num, num))
+        num = three.itemsize
+        assert_equal(three.strides, (30 * num, 6 * num, num))
+        assert_equal(one.ndim, 1)
+        assert_equal(two.ndim, 2)
+        assert_equal(three.ndim, 3)
+        num = two.itemsize
+        assert_equal(two.size, 20)
+        assert_equal(two.nbytes, 20 * num)
+        assert_equal(two.itemsize, two.dtype.itemsize)
+        assert_equal(two.base, np.arange(20))
+
+    def test_dtypeattr(self):
+        one, _, three = self._create_arrays()
+        assert_equal(one.dtype, np.dtype(np.int_))
+        assert_equal(three.dtype, np.dtype(np.float64))
+        assert_equal(one.dtype.char, np.dtype(int).char)
+        assert one.dtype.char in "lq"
+        assert_equal(three.dtype.char, 'd')
+        assert_(three.dtype.str[0] in '<>')
+        assert_equal(one.dtype.str[1], 'i')
+        assert_equal(three.dtype.str[1], 'f')
+
+    def test_int_subclassing(self):
+        # Regression test for https://github.com/numpy/numpy/pull/3526
+
+        numpy_int = np.int_(0)
+
+        # int_ doesn't inherit from Python int, because it's not fixed-width
+        assert_(not isinstance(numpy_int, int))
+
+    def test_stridesattr(self):
+        x, _, _ = self._create_arrays()
+
+        def make_array(size, offset, strides):
+            return np.ndarray(size, buffer=x, dtype=int,
+                              offset=offset * x.itemsize,
+                              strides=strides * x.itemsize)
+
+        assert_equal(make_array(4, 4, -1), np.array([4, 3, 2, 1]))
+        assert_raises(ValueError, make_array, 4, 4, -2)
+        assert_raises(ValueError, make_array, 4, 2, -1)
+        assert_raises(ValueError, make_array, 8, 3, 1)
+        assert_equal(make_array(8, 3, 0), np.array([3] * 8))
+        # Check behavior reported in gh-2503:
+        assert_raises(ValueError, make_array, (2, 3), 5, np.array([-2, -3]))
+        make_array(0, 0, 10)
+
+    def test_set_stridesattr(self):
+        x, _, _ = self._create_arrays()
+
+        def make_array(size, offset, strides):
+            try:
+                r = np.ndarray([size], dtype=int, buffer=x,
+                               offset=offset * x.itemsize)
+            except Exception as e:
+                raise RuntimeError(e)
+            with pytest.warns(DeprecationWarning):
+                r.strides = strides * x.itemsize
+            return r
+
+        assert_equal(make_array(4, 4, -1), np.array([4, 3, 2, 1]))
+        assert_equal(make_array(7, 3, 1), np.array([3, 4, 5, 6, 7, 8, 9]))
+        assert_raises(ValueError, make_array, 4, 4, -2)
+        assert_raises(ValueError, make_array, 4, 2, -1)
+        assert_raises(RuntimeError, make_array, 8, 3, 1)
+        # Check that the true extent of the array is used.
+        # Test relies on as_strided base not exposing a buffer.
+        x = stride_tricks.as_strided(np.arange(1), (10, 10), (0, 0))
+
+        def set_strides(arr, strides):
+            with pytest.warns(DeprecationWarning):
+                arr.strides = strides
+
+        assert_raises(ValueError, set_strides, x, (10 * x.itemsize, x.itemsize))
+
+        # Test for offset calculations:
+        x = stride_tricks.as_strided(np.arange(10, dtype=np.int8)[-1],
+                                                    shape=(10,), strides=(-1,))
+        assert_raises(ValueError, set_strides, x[::-1], -1)
+        a = x[::-1]
+        with pytest.warns(DeprecationWarning):
+            a.strides = 1
+        with pytest.warns(DeprecationWarning):
+            a[::2].strides = 2
+
+        # test 0d
+        arr_0d = np.array(0)
+        with pytest.warns(DeprecationWarning):
+            arr_0d.strides = ()
+        assert_raises(TypeError, set_strides, arr_0d, None)
+
+    def test_fill(self):
+        for t in "?bhilqpBHILQPfdgFDGO":
+            x = np.empty((3, 2, 1), t)
+            y = np.empty((3, 2, 1), t)
+            x.fill(1)
+            y[...] = 1
+            assert_equal(x, y)
+
+    def test_fill_max_uint64(self):
+        x = np.empty((3, 2, 1), dtype=np.uint64)
+        y = np.empty((3, 2, 1), dtype=np.uint64)
+        value = 2**64 - 1
+        y[...] = value
+        x.fill(value)
+        assert_array_equal(x, y)
+
+    def test_fill_struct_array(self):
+        # Filling from a scalar
+        x = np.array([(0, 0.0), (1, 1.0)], dtype='i4,f8')
+        x.fill(x[0])
+        assert_equal(x['f1'][1], x['f1'][0])
+        # Filling from a tuple that can be converted
+        # to a scalar
+        x = np.zeros(2, dtype=[('a', 'f8'), ('b', 'i4')])
+        x.fill((3.5, -2))
+        assert_array_equal(x['a'], [3.5, 3.5])
+        assert_array_equal(x['b'], [-2, -2])
+
+    def test_fill_readonly(self):
+        # gh-22922
+        a = np.zeros(11)
+        a.setflags(write=False)
+        with pytest.raises(ValueError, match=".*read-only"):
+            a.fill(0)
+
+    def test_fill_subarrays(self):
+        # NOTE:
+        # This is also a regression test for a crash with PYTHONMALLOC=debug
+
+        dtype = np.dtype("2<i8, 2<i8, 2<i8")
+        data = ([1, 2], [3, 4], [5, 6])
+
+        arr = np.empty(1, dtype=dtype)
+        arr.fill(data)
+
+        assert_equal(arr, np.array(data, dtype=dtype))
+
+
+class TestArrayConstruction:
+    def test_array(self):
+        d = np.ones(6)
+        r = np.array([d, d])
+        assert_equal(r, np.ones((2, 6)))
+
+        d = np.ones(6)
+        tgt = np.ones((2, 6))
+        r = np.array([d, d])
+        assert_equal(r, tgt)
+        tgt[1] = 2
+        r = np.array([d, d + 1])
+        assert_equal(r, tgt)
+
+        d = np.ones(6)
+        r = np.array([[d, d]])
+        assert_equal(r, np.ones((1, 2, 6)))
+
+        d = np.ones(6)
+        r = np.array([[d, d], [d, d]])
+        assert_equal(r, np.ones((2, 2, 6)))
+
+        d = np.ones((6, 6))
+        r = np.array([d, d])
+        assert_equal(r, np.ones((2, 6, 6)))
+
+        d = np.ones((6, ))
+        r = np.array([[d, d + 1], d + 2], dtype=object)
+        assert_equal(len(r), 2)
+        assert_equal(r[0], [d, d + 1])
+        assert_equal(r[1], d + 2)
+
+        tgt = np.ones((2, 3), dtype=bool)
+        tgt[0, 2] = False
+        tgt[1, 0:2] = False
+        r = np.array([[True, True, False], [False, False, True]])
+        assert_equal(r, tgt)
+        r = np.array([[True, False], [True, False], [False, True]])
+        assert_equal(r, tgt.T)
+
+    def test_array_empty(self):
+        assert_raises(TypeError, np.array)
+
+    def test_0d_array_shape(self):
+        assert np.ones(np.array(3)).shape == (3,)
+
+    def test_array_copy_false(self):
+        d = np.array([1, 2, 3])
+        e = np.array(d, copy=False)
+        d[1] = 3
+        assert_array_equal(e, [1, 3, 3])
+        np.array(d, copy=False, order='F')
+
+    def test_array_copy_if_needed(self):
+        d = np.array([1, 2, 3])
+        e = np.array(d, copy=None)
+        d[1] = 3
+        assert_array_equal(e, [1, 3, 3])
+        e = np.array(d, copy=None, order='F')
+        d[1] = 4
+        assert_array_equal(e, [1, 4, 3])
+        e[2] = 7
+        assert_array_equal(d, [1, 4, 7])
+
+    def test_array_copy_true(self):
+        d = np.array([[1, 2, 3], [1, 2, 3]])
+        e = np.array(d, copy=True)
+        d[0, 1] = 3
+        e[0, 2] = -7
+        assert_array_equal(e, [[1, 2, -7], [1, 2, 3]])
+        assert_array_equal(d, [[1, 3, 3], [1, 2, 3]])
+        e = np.array(d, copy=True, order='F')
+        d[0, 1] = 5
+        e[0, 2] = 7
+        assert_array_equal(e, [[1, 3, 7], [1, 2, 3]])
+        assert_array_equal(d, [[1, 5, 3], [1, 2, 3]])
+
+    def test_array_copy_str(self):
+        with pytest.raises(
+            ValueError,
+            match="strings are not allowed for 'copy' keyword. "
+                  "Use True/False/None instead."
+        ):
+            np.array([1, 2, 3], copy="always")
+
+    def test_array_cont(self):
+        d = np.ones(10)[::2]
+        assert_(np.ascontiguousarray(d).flags.c_contiguous)
+        assert_(np.ascontiguousarray(d).flags.f_contiguous)
+        assert_(np.asfortranarray(d).flags.c_contiguous)
+        assert_(np.asfortranarray(d).flags.f_contiguous)
+        d = np.ones((10, 10))[::2, ::2]
+        assert_(np.ascontiguousarray(d).flags.c_contiguous)
+        assert_(np.asfortranarray(d).flags.f_contiguous)
+
+    @pytest.mark.parametrize("func",
+            [np.array,
+             np.asarray,
+             np.asanyarray,
+             np.ascontiguousarray,
+             np.asfortranarray])
+    def test_bad_arguments_error(self, func):
+        with pytest.raises(TypeError):
+            func(3, dtype="bad dtype")
+        with pytest.raises(TypeError):
+            func()  # missing arguments
+        with pytest.raises(TypeError):
+            func(1, 2, 3, 4, 5, 6, 7, 8)  # too many arguments
+
+    @pytest.mark.parametrize("func",
+            [np.array,
+             np.asarray,
+             np.asanyarray,
+             np.ascontiguousarray,
+             np.asfortranarray])
+    def test_array_as_keyword(self, func):
+        # This should likely be made positional only, but do not change
+        # the name accidentally.
+        if func is np.array:
+            func(object=3)
+        else:
+            func(a=3)
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    @pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+    @pytest.mark.parametrize("func",
+            [np.array,
+             np.asarray,
+             np.asanyarray,
+             np.ascontiguousarray,
+             np.asfortranarray])
+    def test_array_signature(self, func):
+        sig = inspect.signature(func)
+
+        assert len(sig.parameters) >= 3
+
+        arg0 = "object" if func is np.array else "a"
+        assert arg0 in sig.parameters
+        assert sig.parameters[arg0].default is inspect.Parameter.empty
+        assert sig.parameters[arg0].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+
+        assert "dtype" in sig.parameters
+        assert sig.parameters["dtype"].default is None
+        assert sig.parameters["dtype"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+
+        assert "like" in sig.parameters
+        assert sig.parameters["like"].default is None
+        assert sig.parameters["like"].kind is inspect.Parameter.KEYWORD_ONLY
+
+
+class TestAssignment:
+    def test_assignment_broadcasting(self):
+        a = np.arange(6).reshape(2, 3)
+
+        # Broadcasting the input to the output
+        a[...] = np.arange(3)
+        assert_equal(a, [[0, 1, 2], [0, 1, 2]])
+        a[...] = np.arange(2).reshape(2, 1)
+        assert_equal(a, [[0, 0, 0], [1, 1, 1]])
+
+        # For compatibility with <= 1.5, a limited version of broadcasting
+        # the output to the input.
+        #
+        # This behavior is inconsistent with NumPy broadcasting
+        # in general, because it only uses one of the two broadcasting
+        # rules (adding a new "1" dimension to the left of the shape),
+        # applied to the output instead of an input. In NumPy 2.0, this kind
+        # of broadcasting assignment will likely be disallowed.
+        a[...] = np.arange(6)[::-1].reshape(1, 2, 3)
+        assert_equal(a, [[5, 4, 3], [2, 1, 0]])
+        # The other type of broadcasting would require a reduction operation.
+
+        def assign(a, b):
+            a[...] = b
+
+        assert_raises(ValueError, assign, a, np.arange(12).reshape(2, 2, 3))
+
+    def test_assignment_errors(self):
+        # Address issue #2276
+        class C:
+            pass
+        a = np.zeros(1)
+
+        def assign(v):
+            a[0] = v
+
+        assert_raises((AttributeError, TypeError), assign, C())
+        assert_raises(ValueError, assign, [1])
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*set_string_function.*:DeprecationWarning"
+    )
+    def test_unicode_assignment(self):
+        # gh-5049
+        from numpy._core.arrayprint import set_printoptions
+
+        @contextmanager
+        def inject_str(s):
+            """ replace ndarray.__str__ temporarily """
+            set_printoptions(formatter={"all": lambda x: s})
+            try:
+                yield
+            finally:
+                set_printoptions()
+
+        a1d = np.array(['test'])
+        a0d = np.array('done')
+        with inject_str('bad'):
+            a1d[0] = a0d  # previously this would invoke __str__
+        assert_equal(a1d[0], 'done')
+
+        # this would crash for the same reason
+        np.array([np.array('\xe5\xe4\xf6')])
+
+    def test_stringlike_empty_list(self):
+        # gh-8902
+        u = np.array(['done'])
+        b = np.array([b'done'])
+
+        class bad_sequence:
+            def __getitem__(self, _, /): pass
+            def __len__(self): raise RuntimeError
+
+        assert_raises(ValueError, operator.setitem, u, 0, [])
+        assert_raises(ValueError, operator.setitem, b, 0, [])
+
+        assert_raises(ValueError, operator.setitem, u, 0, bad_sequence())
+        assert_raises(ValueError, operator.setitem, b, 0, bad_sequence())
+
+    def test_longdouble_assignment(self):
+        # only relevant if longdouble is larger than float
+        # we're looking for loss of precision
+
+        for dtype in (np.longdouble, np.clongdouble):
+            # gh-8902
+            tinyb = np.nextafter(np.longdouble(0), 1).astype(dtype)
+            tinya = np.nextafter(np.longdouble(0), -1).astype(dtype)
+
+            # construction
+            tiny1d = np.array([tinya])
+            assert_equal(tiny1d[0], tinya)
+
+            # scalar = scalar
+            tiny1d[0] = tinyb
+            assert_equal(tiny1d[0], tinyb)
+
+            # 0d = scalar
+            tiny1d[0, ...] = tinya
+            assert_equal(tiny1d[0], tinya)
+
+            # 0d = 0d
+            tiny1d[0, ...] = tinyb[...]
+            assert_equal(tiny1d[0], tinyb)
+
+            # scalar = 0d
+            tiny1d[0] = tinyb[...]
+            assert_equal(tiny1d[0], tinyb)
+
+            arr = np.array([np.array(tinya)])
+            assert_equal(arr[0], tinya)
+
+    def test_cast_to_string(self):
+        # cast to str should do "str(scalar)", not "str(scalar.item())"
+        # When converting a float to a string via array assignment, we
+        # want to ensure that the conversion uses str(scalar) to preserve
+        # the expected precision.
+        a = np.zeros(1, dtype='S20')
+        a[:] = np.array(['1.12345678901234567890'], dtype='f8')
+        assert_equal(a[0], b"1.1234567890123457")
+
+
+class TestDtypedescr:
+    def test_construction(self):
+        d1 = np.dtype('i4')
+        assert_equal(d1, np.dtype(np.int32))
+        d2 = np.dtype('f8')
+        assert_equal(d2, np.dtype(np.float64))
+
+    def test_byteorders(self):
+        assert_(np.dtype('<i4') != np.dtype('>i4'))
+        assert_(np.dtype([('a', '<i4')]) != np.dtype([('a', '>i4')]))
+
+    def test_structured_non_void(self):
+        fields = [('a', '<i2'), ('b', '<i2')]
+        dt_int = np.dtype(('i4', fields))
+        assert_equal(str(dt_int), "(numpy.int32, [('a', '<i2'), ('b', '<i2')])")
+
+        # gh-9821
+        arr_int = np.zeros(4, dt_int)
+        assert_equal(repr(arr_int),
+            "array([0, 0, 0, 0], dtype=(numpy.int32, [('a', '<i2'), ('b', '<i2')]))")
+
+
+class TestZeroRank:
+    def _create_arrays(self):
+        return np.array(0), np.array('x', object)
+
+    def test_ellipsis_subscript(self):
+        a, b = self._create_arrays()
+        assert_equal(a[...], 0)
+        assert_equal(b[...], 'x')
+        assert_(a[...].base is a)  # `a[...] is a` in numpy <1.9.
+        assert_(b[...].base is b)  # `b[...] is b` in numpy <1.9.
+
+    def test_empty_subscript(self):
+        a, b = self._create_arrays()
+        assert_equal(a[()], 0)
+        assert_equal(b[()], 'x')
+        assert_(type(a[()]) is a.dtype.type)
+        assert_(type(b[()]) is str)
+
+    def test_invalid_subscript(self):
+        a, b = self._create_arrays()
+        assert_raises(IndexError, lambda x: x[0], a)
+        assert_raises(IndexError, lambda x: x[0], b)
+        assert_raises(IndexError, lambda x: x[np.array([], int)], a)
+        assert_raises(IndexError, lambda x: x[np.array([], int)], b)
+
+    def test_ellipsis_subscript_assignment(self):
+        a, b = self._create_arrays()
+        a[...] = 42
+        assert_equal(a, 42)
+        b[...] = ''
+        assert_equal(b.item(), '')
+
+    def test_empty_subscript_assignment(self):
+        a, b = self._create_arrays()
+        a[()] = 42
+        assert_equal(a, 42)
+        b[()] = ''
+        assert_equal(b.item(), '')
+
+    def test_invalid_subscript_assignment(self):
+        a, b = self._create_arrays()
+
+        def assign(x, i, v):
+            x[i] = v
+
+        assert_raises(IndexError, assign, a, 0, 42)
+        assert_raises(IndexError, assign, b, 0, '')
+        assert_raises(ValueError, assign, a, (), '')
+
+    def test_newaxis(self):
+        a, _ = self._create_arrays()
+        assert_equal(a[np.newaxis].shape, (1,))
+        assert_equal(a[..., np.newaxis].shape, (1,))
+        assert_equal(a[np.newaxis, ...].shape, (1,))
+        assert_equal(a[..., np.newaxis].shape, (1,))
+        assert_equal(a[np.newaxis, ..., np.newaxis].shape, (1, 1))
+        assert_equal(a[..., np.newaxis, np.newaxis].shape, (1, 1))
+        assert_equal(a[np.newaxis, np.newaxis, ...].shape, (1, 1))
+        assert_equal(a[(np.newaxis,) * 10].shape, (1,) * 10)
+
+    def test_invalid_newaxis(self):
+        a, _ = self._create_arrays()
+
+        def subscript(x, i):
+            x[i]
+
+        assert_raises(IndexError, subscript, a, (np.newaxis, 0))
+        assert_raises(IndexError, subscript, a, (np.newaxis,) * 70)
+
+    def test_constructor(self):
+        x = np.ndarray(())
+        x[()] = 5
+        assert_equal(x[()], 5)
+        y = np.ndarray((), buffer=x)
+        y[()] = 6
+        assert_equal(x[()], 6)
+
+        # strides and shape must be the same length
+        with pytest.raises(ValueError):
+            np.ndarray((2,), strides=())
+        with pytest.raises(ValueError):
+            np.ndarray((), strides=(2,))
+
+    def test_output(self):
+        x = np.array(2)
+        assert_raises(ValueError, np.add, x, [1], x)
+
+    def test_real_imag(self):
+        # contiguity checks are for gh-11245
+        x = np.array(1j)
+        xr = x.real
+        xi = x.imag
+
+        assert_equal(xr, np.array(0))
+        assert_(type(xr) is np.ndarray)
+        assert_equal(xr.flags.contiguous, True)
+        assert_equal(xr.flags.f_contiguous, True)
+
+        assert_equal(xi, np.array(1))
+        assert_(type(xi) is np.ndarray)
+        assert_equal(xi.flags.contiguous, True)
+        assert_equal(xi.flags.f_contiguous, True)
+
+
+class TestScalarIndexing:
+    def _create_array(self):
+        return np.array([0, 1])[0]
+
+    def test_ellipsis_subscript(self):
+        a = self._create_array()
+        assert_equal(a[...], 0)
+        assert_equal(a[...].shape, ())
+
+    def test_empty_subscript(self):
+        a = self._create_array()
+        assert_equal(a[()], 0)
+        assert_equal(a[()].shape, ())
+
+    def test_invalid_subscript(self):
+        a = self._create_array()
+        assert_raises(IndexError, lambda x: x[0], a)
+        assert_raises(IndexError, lambda x: x[np.array([], int)], a)
+
+    def test_invalid_subscript_assignment(self):
+        a = self._create_array()
+
+        def assign(x, i, v):
+            x[i] = v
+
+        assert_raises(TypeError, assign, a, 0, 42)
+
+    def test_newaxis(self):
+        a = self._create_array()
+        assert_equal(a[np.newaxis].shape, (1,))
+        assert_equal(a[..., np.newaxis].shape, (1,))
+        assert_equal(a[np.newaxis, ...].shape, (1,))
+        assert_equal(a[..., np.newaxis].shape, (1,))
+        assert_equal(a[np.newaxis, ..., np.newaxis].shape, (1, 1))
+        assert_equal(a[..., np.newaxis, np.newaxis].shape, (1, 1))
+        assert_equal(a[np.newaxis, np.newaxis, ...].shape, (1, 1))
+        assert_equal(a[(np.newaxis,) * 10].shape, (1,) * 10)
+
+    def test_invalid_newaxis(self):
+        a = self._create_array()
+
+        def subscript(x, i):
+            x[i]
+
+        assert_raises(IndexError, subscript, a, (np.newaxis, 0))
+        assert_raises(IndexError, subscript, a, (np.newaxis,) * 70)
+
+    def test_overlapping_assignment(self):
+        # With positive strides
+        a = np.arange(4)
+        a[:-1] = a[1:]
+        assert_equal(a, [1, 2, 3, 3])
+
+        a = np.arange(4)
+        a[1:] = a[:-1]
+        assert_equal(a, [0, 0, 1, 2])
+
+        # With positive and negative strides
+        a = np.arange(4)
+        a[:] = a[::-1]
+        assert_equal(a, [3, 2, 1, 0])
+
+        a = np.arange(6).reshape(2, 3)
+        a[::-1, :] = a[:, ::-1]
+        assert_equal(a, [[5, 4, 3], [2, 1, 0]])
+
+        a = np.arange(6).reshape(2, 3)
+        a[::-1, ::-1] = a[:, ::-1]
+        assert_equal(a, [[3, 4, 5], [0, 1, 2]])
+
+        # With just one element overlapping
+        a = np.arange(5)
+        a[:3] = a[2:]
+        assert_equal(a, [2, 3, 4, 3, 4])
+
+        a = np.arange(5)
+        a[2:] = a[:3]
+        assert_equal(a, [0, 1, 0, 1, 2])
+
+        a = np.arange(5)
+        a[2::-1] = a[2:]
+        assert_equal(a, [4, 3, 2, 3, 4])
+
+        a = np.arange(5)
+        a[2:] = a[2::-1]
+        assert_equal(a, [0, 1, 2, 1, 0])
+
+        a = np.arange(5)
+        a[2::-1] = a[:1:-1]
+        assert_equal(a, [2, 3, 4, 3, 4])
+
+        a = np.arange(5)
+        a[:1:-1] = a[2::-1]
+        assert_equal(a, [0, 1, 0, 1, 2])
+
+
+class TestCreation:
+    """
+    Test the np.array constructor
+    """
+    def test_from_attribute(self):
+        class x:
+            def __array__(self, dtype=None, copy=None):
+                pass
+
+        assert_raises(ValueError, np.array, x())
+
+    def test_from_string(self):
+        types = np.typecodes['AllInteger'] + np.typecodes['Float']
+        nstr = ['123', '123']
+        result = np.array([123, 123], dtype=int)
+        for type in types:
+            msg = f'String conversion for {type}'
+            assert_equal(np.array(nstr, dtype=type), result, err_msg=msg)
+
+    def test_void(self):
+        arr = np.array([], dtype='V')
+        assert arr.dtype == 'V8'  # current default
+        # Same length scalars (those that go to the same void) work:
+        arr = np.array([b"1234", b"1234"], dtype="V")
+        assert arr.dtype == "V4"
+
+        # Promoting different lengths will fail (pre 1.20 this worked)
+        # by going via S5 and casting to V5.
+        with pytest.raises(TypeError):
+            np.array([b"1234", b"12345"], dtype="V")
+        with pytest.raises(TypeError):
+            np.array([b"12345", b"1234"], dtype="V")
+
+        # Check the same for the casting path:
+        arr = np.array([b"1234", b"1234"], dtype="O").astype("V")
+        assert arr.dtype == "V4"
+        with pytest.raises(TypeError):
+            np.array([b"1234", b"12345"], dtype="O").astype("V")
+
+    @pytest.mark.parametrize("idx",
+            [pytest.param(Ellipsis, id="arr"), pytest.param((), id="scalar")])
+    def test_structured_void_promotion(self, idx):
+        arr = np.array(
+            [np.array(1, dtype="i,i")[idx], np.array(2, dtype='i,i')[idx]],
+            dtype="V")
+        assert_array_equal(arr, np.array([(1, 1), (2, 2)], dtype="i,i"))
+        # The following fails to promote the two dtypes, resulting in an error
+        with pytest.raises(TypeError):
+            np.array(
+                [np.array(1, dtype="i,i")[idx], np.array(2, dtype='i,i,i')[idx]],
+                dtype="V")
+
+    def test_too_big_error(self):
+        # 45341 is the smallest integer greater than sqrt(2**31 - 1).
+        # 3037000500 is the smallest integer greater than sqrt(2**63 - 1).
+        # We want to make sure that the square byte array with those dimensions
+        # is too big on 32 or 64 bit systems respectively.
+        if np.iinfo('intp').max == 2**31 - 1:
+            shape = (46341, 46341)
+        elif np.iinfo('intp').max == 2**63 - 1:
+            shape = (3037000500, 3037000500)
+        else:
+            return
+        assert_raises(ValueError, np.empty, shape, dtype=np.int8)
+        assert_raises(ValueError, np.zeros, shape, dtype=np.int8)
+        assert_raises(ValueError, np.ones, shape, dtype=np.int8)
+
+    @pytest.mark.skipif(not IS_64BIT,
+                        reason="malloc may not fail on 32 bit systems")
+    @pytest.mark.thread_unsafe(reason="large slow test in parallel")
+    def test_malloc_fails(self):
+        # This test is guaranteed to fail due to a too large allocation
+        with assert_raises(np._core._exceptions._ArrayMemoryError):
+            np.empty(np.iinfo(np.intp).max, dtype=np.uint8)
+
+    def test_zeros(self):
+        types = np.typecodes['AllInteger'] + np.typecodes['AllFloat']
+        for dt in types:
+            d = np.zeros((13,), dtype=dt)
+            assert_equal(np.count_nonzero(d), 0)
+            # true for ieee floats
+            assert_equal(d.sum(), 0)
+            assert_(not d.any())
+
+            d = np.zeros(2, dtype='(2,4)i4')
+            assert_equal(np.count_nonzero(d), 0)
+            assert_equal(d.sum(), 0)
+            assert_(not d.any())
+
+            d = np.zeros(2, dtype='4i4')
+            assert_equal(np.count_nonzero(d), 0)
+            assert_equal(d.sum(), 0)
+            assert_(not d.any())
+
+            d = np.zeros(2, dtype='(2,4)i4, (2,4)i4')
+            assert_equal(np.count_nonzero(d), 0)
+
+    @pytest.mark.slow
+    def test_zeros_big(self):
+        # test big array as they might be allocated different by the system
+        types = np.typecodes['AllInteger'] + np.typecodes['AllFloat']
+        for dt in types:
+            d = np.zeros((30 * 1024**2,), dtype=dt)
+            assert_(not d.any())
+            # This test can fail on 32-bit systems due to insufficient
+            # contiguous memory. Deallocating the previous array increases the
+            # chance of success.
+            del d
+
+    def test_zeros_obj(self):
+        # test initialization from PyLong(0)
+        d = np.zeros((13,), dtype=object)
+        assert_array_equal(d, [0] * 13)
+        assert_equal(np.count_nonzero(d), 0)
+
+    def test_zeros_obj_obj(self):
+        d = np.zeros(10, dtype=[('k', object, 2)])
+        assert_array_equal(d['k'], 0)
+
+    def test_zeros_like_like_zeros(self):
+        # test zeros_like returns the same as zeros
+        for c in np.typecodes['All']:
+            if c == 'V':
+                continue
+            d = np.zeros((3, 3), dtype=c)
+            assert_array_equal(np.zeros_like(d), d)
+            assert_equal(np.zeros_like(d).dtype, d.dtype)
+        # explicitly check some special cases
+        d = np.zeros((3, 3), dtype='S5')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+        d = np.zeros((3, 3), dtype='U5')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+
+        d = np.zeros((3, 3), dtype='<i4')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+        d = np.zeros((3, 3), dtype='>i4')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+
+        d = np.zeros((3, 3), dtype='<M8[s]')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+        d = np.zeros((3, 3), dtype='>M8[s]')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+
+        d = np.zeros((3, 3), dtype='f4,f4')
+        assert_array_equal(np.zeros_like(d), d)
+        assert_equal(np.zeros_like(d).dtype, d.dtype)
+
+    def test_empty_unicode(self):
+        # don't throw decode errors on garbage memory
+        for i in range(5, 100, 5):
+            d = np.empty(i, dtype='U')
+            str(d)
+
+    def test_sequence_non_homogeneous(self):
+        assert_equal(np.array([4, 2**80]).dtype, object)
+        assert_equal(np.array([4, 2**80, 4]).dtype, object)
+        assert_equal(np.array([2**80, 4]).dtype, object)
+        assert_equal(np.array([2**80] * 3).dtype, object)
+        assert_equal(np.array([[1, 1], [1j, 1j]]).dtype, complex)
+        assert_equal(np.array([[1j, 1j], [1, 1]]).dtype, complex)
+        assert_equal(np.array([[1, 1, 1], [1, 1j, 1.], [1, 1, 1]]).dtype, complex)
+
+    def test_non_sequence_sequence(self):
+        """Should not segfault.
+
+        Class Fail breaks the sequence protocol for new style classes, i.e.,
+        those derived from object. Class Map is a mapping type indicated by
+        raising a ValueError. At some point we may raise a warning instead
+        of an error in the Fail case.
+
+        """
+        class Fail:
+            def __len__(self):
+                return 1
+
+            def __getitem__(self, index):
+                raise ValueError
+
+        class Map:
+            def __len__(self):
+                return 1
+
+            def __getitem__(self, index):
+                raise KeyError
+
+        a = np.array([Map()])
+        assert_(a.shape == (1,))
+        assert_(a.dtype == np.dtype(object))
+        assert_raises(ValueError, np.array, [Fail()])
+
+    def test_no_len_object_type(self):
+        # gh-5100, want object array from iterable object without len()
+        class Point2:
+            def __init__(self):
+                pass
+
+            def __getitem__(self, ind):
+                if ind in [0, 1]:
+                    return ind
+                else:
+                    raise IndexError
+        d = np.array([Point2(), Point2(), Point2()])
+        assert_equal(d.dtype, np.dtype(object))
+
+    def test_false_len_sequence(self):
+        # gh-7264, segfault for this example
+        class C:
+            def __getitem__(self, i):
+                raise IndexError
+
+            def __len__(self):
+                return 42
+
+        a = np.array(C())  # segfault?
+        assert_equal(len(a), 0)
+
+    def test_false_len_iterable(self):
+        # Special case where a bad __getitem__ makes us fall back on __iter__:
+        class C:
+            def __getitem__(self, x):
+                raise Exception
+
+            def __iter__(self):
+                return iter(())
+
+            def __len__(self):
+                return 2
+
+        a = np.empty(2)
+        with assert_raises(ValueError):
+            a[:] = C()  # Segfault!
+
+        np.array(C()) == list(C())
+
+    def test_failed_len_sequence(self):
+        # gh-7393
+        class A:
+            def __init__(self, data):
+                self._data = data
+
+            def __getitem__(self, item):
+                return type(self)(self._data[item])
+
+            def __len__(self):
+                return len(self._data)
+
+        # len(d) should give 3, but len(d[0]) will fail
+        d = A([1, 2, 3])
+        assert_equal(len(np.array(d)), 3)
+
+    def test_array_too_big(self):
+        # Test that array creation succeeds for arrays addressable by intp
+        # on the byte level and fails for too large arrays.
+        buf = np.zeros(100)
+
+        max_bytes = np.iinfo(np.intp).max
+        for dtype in ["intp", "S20", "b"]:
+            dtype = np.dtype(dtype)
+            itemsize = dtype.itemsize
+
+            np.ndarray(buffer=buf, strides=(0,),
+                       shape=(max_bytes // itemsize,), dtype=dtype)
+            assert_raises(ValueError, np.ndarray, buffer=buf, strides=(0,),
+                          shape=(max_bytes // itemsize + 1,), dtype=dtype)
+
+    def _ragged_creation(self, seq):
+        # without dtype=object, the ragged object raises
+        with pytest.raises(ValueError, match=".*detected shape was"):
+            a = np.array(seq)
+
+        return np.array(seq, dtype=object)
+
+    def test_ragged_ndim_object(self):
+        # Lists of mismatching depths are treated as object arrays
+        a = self._ragged_creation([[1], 2, 3])
+        assert_equal(a.shape, (3,))
+        assert_equal(a.dtype, object)
+
+        a = self._ragged_creation([1, [2], 3])
+        assert_equal(a.shape, (3,))
+        assert_equal(a.dtype, object)
+
+        a = self._ragged_creation([1, 2, [3]])
+        assert_equal(a.shape, (3,))
+        assert_equal(a.dtype, object)
+
+    def test_ragged_shape_object(self):
+        # The ragged dimension of a list is turned into an object array
+        a = self._ragged_creation([[1, 1], [2], [3]])
+        assert_equal(a.shape, (3,))
+        assert_equal(a.dtype, object)
+
+        a = self._ragged_creation([[1], [2, 2], [3]])
+        assert_equal(a.shape, (3,))
+        assert_equal(a.dtype, object)
+
+        a = self._ragged_creation([[1], [2], [3, 3]])
+        assert a.shape == (3,)
+        assert a.dtype == object
+
+    def test_array_of_ragged_array(self):
+        outer = np.array([None, None])
+        outer[0] = outer[1] = np.array([1, 2, 3])
+        assert np.array(outer).shape == (2,)
+        assert np.array([outer]).shape == (1, 2)
+
+        outer_ragged = np.array([None, None])
+        outer_ragged[0] = np.array([1, 2, 3])
+        outer_ragged[1] = np.array([1, 2, 3, 4])
+        # should both of these emit deprecation warnings?
+        assert np.array(outer_ragged).shape == (2,)
+        assert np.array([outer_ragged]).shape == (1, 2,)
+
+    def test_deep_nonragged_object(self):
+        # None of these should raise, even though they are missing dtype=object
+        a = np.array([[[Decimal(1)]]])
+        a = np.array([1, Decimal(1)])
+        a = np.array([[1], [Decimal(1)]])
+
+    @pytest.mark.parametrize("dtype", [object, "O,O", "O,(3,)O", "(2,3)O"])
+    @pytest.mark.parametrize("function", [
+            np.ndarray, np.empty,
+            lambda shape, dtype: np.empty_like(np.empty(shape, dtype=dtype))])
+    def test_object_initialized_to_None(self, function, dtype):
+        # NumPy has support for object fields to be NULL (meaning None)
+        # but generally, we should always fill with the proper None, and
+        # downstream may rely on that.  (For fully initialized arrays!)
+        arr = function(3, dtype=dtype)
+        # We expect a fill value of None, which is not NULL:
+        expected = np.array(None).tobytes()
+        expected = expected * (arr.nbytes // len(expected))
+        assert arr.tobytes() == expected
+
+    @pytest.mark.parametrize("func", [
+        np.array, np.asarray, np.asanyarray, np.ascontiguousarray,
+        np.asfortranarray])
+    def test_creation_from_dtypemeta(self, func):
+        dtype = np.dtype('i')
+        arr1 = func([1, 2, 3], dtype=dtype)
+        arr2 = func([1, 2, 3], dtype=type(dtype))
+        assert_array_equal(arr1, arr2)
+        assert arr2.dtype == dtype
+
+    def test_ndmax_less_than_actual_dims_dtype_object(self):
+        data = [[1, 2, 3], [4, 5, 6]]
+        arr = np.array(data, ndmax=1, dtype=object)
+        assert arr.ndim == 1
+        assert arr.shape == (2,)
+        assert arr.dtype == object
+
+        data = [[1, 2, 3], [4, 5]]
+        arr = np.array(data, ndmax=1, dtype=object)
+        assert arr.ndim == 1
+        assert arr.shape == (2,)
+        assert arr.dtype == object
+
+        data = [[[1], [2]], [[3], [4]]]
+        arr = np.array(data, ndmax=2, dtype=object)
+        assert arr.ndim == 2
+        assert arr.shape == (2, 2)
+        assert arr.dtype == object
+
+    def test_ndmax_equal_to_actual_dims(self):
+        data = [[1, 2], [3, 4]]
+        arr = np.array(data, ndmax=2)
+        assert arr.ndim == 2
+        assert_array_equal(arr, np.array(data))
+
+    def test_ndmax_greater_than_actual_dims(self):
+        data = [[1, 2], [3, 4]]
+        arr = np.array(data, ndmax=3)
+        assert arr.ndim == 2
+        assert_array_equal(arr, np.array(data))
+
+    def test_ndmax_less_than_actual_dims(self):
+        data = [[[1], [2]], [[3], [4]]]
+        with pytest.raises(ValueError,
+                           match="setting an array element with a sequence. "
+                                 "The requested array would exceed the maximum number of dimension of 2."):
+            np.array(data, ndmax=2)
+
+    def test_ndmax_is_zero(self):
+        data = [1, 2, 3]
+        arr = np.array(data, ndmax=0, dtype=object)
+        assert arr.ndim == 0
+        assert arr.shape == ()
+        assert arr.dtype == object
+
+        data = [[1, 2, 3], [4, 5, 6]]
+        arr = np.array(data, ndmax=0, dtype=object)
+        assert arr.ndim == 0
+        assert arr.shape == ()
+        assert arr.dtype == object
+
+        data = [[1, 2, 3], [4, 5]]
+        arr = np.array(data, ndmax=0, dtype=object)
+        assert arr.ndim == 0
+        assert arr.shape == ()
+        assert arr.dtype == object
+
+    def test_ndmax_less_than_ndmin(self):
+        data = [[[1], [2]], [[3], [4]]]
+        with pytest.raises(ValueError, match="ndmin must be <= ndmax"):
+            np.array(data, ndmax=1, ndmin=2)
+
+    def test_ndmax_is_negative(self):
+        data = [1, 2, 3]
+        with pytest.raises(ValueError, match="ndmax must be in the range"):
+            np.array(data, ndmax=-1)
+
+    def test_ndmax_greather_than_NPY_MAXDIMS(self):
+        data = [1, 2, 3]
+        # current NPY_MAXDIMS is 64
+        with pytest.raises(ValueError, match="ndmax must be in the range"):
+            np.array(data, ndmax=65)
+
+    def test_ndmax_less_than_ndim(self):
+        # np.array input bypasses recursive inference, allowing ndim > ndmax validation
+        data = np.array([[1, 2, 3], [4, 5, 6]])
+        with pytest.raises(ValueError, match="object too deep for desired array"):
+            np.array(data, ndmax=1, dtype=object)
+
+
+class TestStructured:
+    def test_subarray_field_access(self):
+        a = np.zeros((3, 5), dtype=[('a', ('i4', (2, 2)))])
+        a['a'] = np.arange(60).reshape(3, 5, 2, 2)
+
+        # Since the subarray is always in C-order, a transpose
+        # does not swap the subarray:
+        assert_array_equal(a.T['a'], a['a'].transpose(1, 0, 2, 3))
+
+        # In Fortran order, the subarray gets appended
+        # like in all other cases, not prepended as a special case
+        b = a.copy(order='F')
+        assert_equal(a['a'].shape, b['a'].shape)
+        assert_equal(a.T['a'].shape, a.T.copy()['a'].shape)
+
+    def test_subarray_comparison(self):
+        # Check that comparisons between record arrays with
+        # multi-dimensional field types work properly
+        a = np.rec.fromrecords(
+            [([1, 2, 3], 'a', [[1, 2], [3, 4]]), ([3, 3, 3], 'b', [[0, 0], [0, 0]])],
+            dtype=[('a', ('f4', 3)), ('b', object), ('c', ('i4', (2, 2)))])
+        b = a.copy()
+        assert_equal(a == b, [True, True])
+        assert_equal(a != b, [False, False])
+        b[1].b = 'c'
+        assert_equal(a == b, [True, False])
+        assert_equal(a != b, [False, True])
+        for i in range(3):
+            b[0].a = a[0].a
+            b[0].a[i] = 5
+            assert_equal(a == b, [False, False])
+            assert_equal(a != b, [True, True])
+        for i in range(2):
+            for j in range(2):
+                b = a.copy()
+                b[0].c[i, j] = 10
+                assert_equal(a == b, [False, True])
+                assert_equal(a != b, [True, False])
+
+        # Check that broadcasting with a subarray works, including cases that
+        # require promotion to work:
+        a = np.array([[(0,)], [(1,)]], dtype=[('a', 'f8')])
+        b = np.array([(0,), (0,), (1,)], dtype=[('a', 'f8')])
+        assert_equal(a == b, [[True, True, False], [False, False, True]])
+        assert_equal(b == a, [[True, True, False], [False, False, True]])
+        a = np.array([[(0,)], [(1,)]], dtype=[('a', 'f8', (1,))])
+        b = np.array([(0,), (0,), (1,)], dtype=[('a', 'f8', (1,))])
+        assert_equal(a == b, [[True, True, False], [False, False, True]])
+        assert_equal(b == a, [[True, True, False], [False, False, True]])
+        a = np.array([[([0, 0],)], [([1, 1],)]], dtype=[('a', 'f8', (2,))])
+        b = np.array([([0, 0],), ([0, 1],), ([1, 1],)], dtype=[('a', 'f8', (2,))])
+        assert_equal(a == b, [[True, False, False], [False, False, True]])
+        assert_equal(b == a, [[True, False, False], [False, False, True]])
+
+        # Check that broadcasting Fortran-style arrays with a subarray work
+        a = np.array([[([0, 0],)], [([1, 1],)]], dtype=[('a', 'f8', (2,))], order='F')
+        b = np.array([([0, 0],), ([0, 1],), ([1, 1],)], dtype=[('a', 'f8', (2,))])
+        assert_equal(a == b, [[True, False, False], [False, False, True]])
+        assert_equal(b == a, [[True, False, False], [False, False, True]])
+
+        # Check that incompatible sub-array shapes don't result to broadcasting
+        x = np.zeros((1,), dtype=[('a', ('f4', (1, 2))), ('b', 'i1')])
+        y = np.zeros((1,), dtype=[('a', ('f4', (2,))), ('b', 'i1')])
+        # The main importance is that it does not return True:
+        with pytest.raises(TypeError):
+            x == y
+
+        x = np.zeros((1,), dtype=[('a', ('f4', (2, 1))), ('b', 'i1')])
+        y = np.zeros((1,), dtype=[('a', ('f4', (2,))), ('b', 'i1')])
+        # The main importance is that it does not return True:
+        with pytest.raises(TypeError):
+            x == y
+
+    def test_empty_structured_array_comparison(self):
+        # Check that comparison works on empty arrays with nontrivially
+        # shaped fields
+        a = np.zeros(0, [('a', '<f8', (1, 1))])
+        assert_equal(a, a)
+        a = np.zeros(0, [('a', '<f8', (1,))])
+        assert_equal(a, a)
+        a = np.zeros((0, 0), [('a', '<f8', (1, 1))])
+        assert_equal(a, a)
+        a = np.zeros((1, 0, 1), [('a', '<f8', (1, 1))])
+        assert_equal(a, a)
+
+    @pytest.mark.parametrize("op", [operator.eq, operator.ne])
+    def test_structured_array_comparison_bad_broadcasts(self, op):
+        a = np.zeros(3, dtype='i,i')
+        b = np.array([], dtype="i,i")
+        with pytest.raises(ValueError):
+            op(a, b)
+
+    def test_structured_comparisons_with_promotion(self):
+        # Check that structured arrays can be compared so long as their
+        # dtypes promote fine:
+        a = np.array([(5, 42), (10, 1)], dtype=[('a', '>i8'), ('b', '<f8')])
+        b = np.array([(5, 43), (10, 1)], dtype=[('a', '<i8'), ('b', '>f8')])
+        assert_equal(a == b, [False, True])
+        assert_equal(a != b, [True, False])
+
+        a = np.array([(5, 42), (10, 1)], dtype=[('a', '>f8'), ('b', '<f8')])
+        b = np.array([(5, 43), (10, 1)], dtype=[('a', '<i8'), ('b', '>i8')])
+        assert_equal(a == b, [False, True])
+        assert_equal(a != b, [True, False])
+
+        # Including with embedded subarray dtype (although subarray comparison
+        # itself may still be a bit weird and compare the raw data)
+        a = np.array([(5, 42), (10, 1)], dtype=[('a', '10>f8'), ('b', '5<f8')])
+        b = np.array([(5, 43), (10, 1)], dtype=[('a', '10<i8'), ('b', '5>i8')])
+        assert_equal(a == b, [False, True])
+        assert_equal(a != b, [True, False])
+
+    @pytest.mark.parametrize("op", [
+            operator.eq, lambda x, y: operator.eq(y, x),
+            operator.ne, lambda x, y: operator.ne(y, x)])
+    def test_void_comparison_failures(self, op):
+        # In principle, one could decide to return an array of False for some
+        # if comparisons are impossible.  But right now we return TypeError
+        # when "void" dtype are involved.
+        x = np.zeros(3, dtype=[('a', 'i1')])
+        y = np.zeros(3)
+        # Cannot compare non-structured to structured:
+        with pytest.raises(TypeError):
+            op(x, y)
+
+        # Added title prevents promotion, but casts are OK:
+        y = np.zeros(3, dtype=[(('title', 'a'), 'i1')])
+        assert np.can_cast(y.dtype, x.dtype)
+        with pytest.raises(TypeError):
+            op(x, y)
+
+        x = np.zeros(3, dtype="V7")
+        y = np.zeros(3, dtype="V8")
+        with pytest.raises(TypeError):
+            op(x, y)
+
+    def test_casting(self):
+        # Check that casting a structured array to change its byte order
+        # works
+        a = np.array([(1,)], dtype=[('a', '<i4')])
+        assert_(np.can_cast(a.dtype, [('a', '>i4')], casting='unsafe'))
+        b = a.astype([('a', '>i4')])
+        a_tmp = a.byteswap()
+        a_tmp = a_tmp.view(a_tmp.dtype.newbyteorder())
+        assert_equal(b, a_tmp)
+        assert_equal(a['a'][0], b['a'][0])
+
+        # Check that equality comparison works on structured arrays if
+        # they are 'equiv'-castable
+        a = np.array([(5, 42), (10, 1)], dtype=[('a', '>i4'), ('b', '<f8')])
+        b = np.array([(5, 42), (10, 1)], dtype=[('a', '<i4'), ('b', '>f8')])
+        assert_(np.can_cast(a.dtype, b.dtype, casting='equiv'))
+        assert_equal(a == b, [True, True])
+
+        # Check that 'equiv' casting can change byte order
+        assert_(np.can_cast(a.dtype, b.dtype, casting='equiv'))
+        c = a.astype(b.dtype, casting='equiv')
+        assert_equal(a == c, [True, True])
+
+        # Check that 'safe' casting can change byte order and up-cast
+        # fields
+        t = [('a', '<i8'), ('b', '>f8')]
+        assert_(np.can_cast(a.dtype, t, casting='safe'))
+        c = a.astype(t, casting='safe')
+        assert_equal((c == np.array([(5, 42), (10, 1)], dtype=t)),
+                     [True, True])
+
+        # Check that 'same_kind' casting can change byte order and
+        # change field widths within a "kind"
+        t = [('a', '<i4'), ('b', '>f4')]
+        assert_(np.can_cast(a.dtype, t, casting='same_kind'))
+        c = a.astype(t, casting='same_kind')
+        assert_equal((c == np.array([(5, 42), (10, 1)], dtype=t)),
+                     [True, True])
+
+        # Check that casting fails if the casting rule should fail on
+        # any of the fields
+        t = [('a', '>i8'), ('b', '<f4')]
+        assert_(not np.can_cast(a.dtype, t, casting='safe'))
+        assert_raises(TypeError, a.astype, t, casting='safe')
+        t = [('a', '>i2'), ('b', '<f8')]
+        assert_(not np.can_cast(a.dtype, t, casting='equiv'))
+        assert_raises(TypeError, a.astype, t, casting='equiv')
+        t = [('a', '>i8'), ('b', '<i2')]
+        assert_(not np.can_cast(a.dtype, t, casting='same_kind'))
+        assert_raises(TypeError, a.astype, t, casting='same_kind')
+        assert_(not np.can_cast(a.dtype, b.dtype, casting='no'))
+        assert_raises(TypeError, a.astype, b.dtype, casting='no')
+
+        # Check that non-'unsafe' casting can't change the set of field names
+        for casting in ['no', 'safe', 'equiv', 'same_kind']:
+            t = [('a', '>i4')]
+            assert_(not np.can_cast(a.dtype, t, casting=casting))
+            t = [('a', '>i4'), ('b', '<f8'), ('c', 'i4')]
+            assert_(not np.can_cast(a.dtype, t, casting=casting))
+
+    def test_objview(self):
+        # https://github.com/numpy/numpy/issues/3286
+        a = np.array([], dtype=[('a', 'f'), ('b', 'f'), ('c', 'O')])
+        a[['a', 'b']]  # TypeError?
+
+        # https://github.com/numpy/numpy/issues/3253
+        dat2 = np.zeros(3, [('A', 'i'), ('B', '|O')])
+        dat2[['B', 'A']]  # TypeError?
+
+    def test_setfield(self):
+        # https://github.com/numpy/numpy/issues/3126
+        struct_dt = np.dtype([('elem', 'i4', 5),])
+        dt = np.dtype([('field', 'i4', 10), ('struct', struct_dt)])
+        x = np.zeros(1, dt)
+        x[0]['field'] = np.ones(10, dtype='i4')
+        x[0]['struct'] = np.ones(1, dtype=struct_dt)
+        assert_equal(x[0]['field'], np.ones(10, dtype='i4'))
+
+    def test_setfield_object(self):
+        # make sure object field assignment with ndarray value
+        # on void scalar mimics setitem behavior
+        b = np.zeros(1, dtype=[('x', 'O')])
+        # next line should work identically to b['x'][0] = np.arange(3)
+        b[0]['x'] = np.arange(3)
+        assert_equal(b[0]['x'], np.arange(3))
+
+        # check that broadcasting check still works
+        c = np.zeros(1, dtype=[('x', 'O', 5)])
+
+        def testassign():
+            c[0]['x'] = np.arange(3)
+
+        assert_raises(ValueError, testassign)
+
+    def test_zero_width_string(self):
+        # Test for PR #6430 / issues #473, #4955, #2585
+
+        dt = np.dtype([('I', int), ('S', 'S0')])
+
+        x = np.zeros(4, dtype=dt)
+
+        assert_equal(x['S'], [b'', b'', b'', b''])
+        assert_equal(x['S'].itemsize, 0)
+
+        x['S'] = ['a', 'b', 'c', 'd']
+        assert_equal(x['S'], [b'', b'', b'', b''])
+        assert_equal(x['I'], [0, 0, 0, 0])
+
+        # Variation on test case from #4955
+        x['S'][x['I'] == 0] = 'hello'
+        assert_equal(x['S'], [b'', b'', b'', b''])
+        assert_equal(x['I'], [0, 0, 0, 0])
+
+        # Variation on test case from #2585
+        x['S'] = 'A'
+        assert_equal(x['S'], [b'', b'', b'', b''])
+        assert_equal(x['I'], [0, 0, 0, 0])
+
+        # Allow zero-width dtypes in ndarray constructor
+        y = np.ndarray(4, dtype=x['S'].dtype)
+        assert_equal(y.itemsize, 0)
+        assert_equal(x['S'], y)
+
+        # More tests for indexing an array with zero-width fields
+        assert_equal(np.zeros(4, dtype=[('a', 'S0,S0'),
+                                        ('b', 'u1')])['a'].itemsize, 0)
+        assert_equal(np.empty(3, dtype='S0,S0').itemsize, 0)
+        assert_equal(np.zeros(4, dtype='S0,u1')['f0'].itemsize, 0)
+
+        xx = x['S'].reshape((2, 2))
+        assert_equal(xx.itemsize, 0)
+        assert_equal(xx, [[b'', b''], [b'', b'']])
+        # check for no uninitialized memory due to viewing S0 array
+        assert_equal(xx[:].dtype, xx.dtype)
+        assert_array_equal(eval(repr(xx), {"np": np, "array": np.array}), xx)
+
+        b = io.BytesIO()
+        np.save(b, xx)
+
+        b.seek(0)
+        yy = np.load(b)
+        assert_equal(yy.itemsize, 0)
+        assert_equal(xx, yy)
+
+        with temppath(suffix='.npy') as tmp:
+            np.save(tmp, xx)
+            yy = np.load(tmp)
+            assert_equal(yy.itemsize, 0)
+            assert_equal(xx, yy)
+
+    def test_base_attr(self):
+        a = np.zeros(3, dtype='i4,f4')
+        b = a[0]
+        assert_(b.base is a)
+
+    def test_assignment(self):
+        def testassign(arr, v):
+            c = arr.copy()
+            c[0] = v  # assign using setitem
+            c[1:] = v  # assign using "dtype_transfer" code paths
+            return c
+
+        dt = np.dtype([('foo', 'i8'), ('bar', 'i8')])
+        arr = np.ones(2, dt)
+        v1 = np.array([(2, 3)], dtype=[('foo', 'i8'), ('bar', 'i8')])
+        v2 = np.array([(2, 3)], dtype=[('bar', 'i8'), ('foo', 'i8')])
+        v3 = np.array([(2, 3)], dtype=[('bar', 'i8'), ('baz', 'i8')])
+        v4 = np.array([(2,)],  dtype=[('bar', 'i8')])
+        v5 = np.array([(2, 3)], dtype=[('foo', 'f8'), ('bar', 'f8')])
+        w = arr.view({'names': ['bar'], 'formats': ['i8'], 'offsets': [8]})
+
+        ans = np.array([(2, 3), (2, 3)], dtype=dt)
+        assert_equal(testassign(arr, v1), ans)
+        assert_equal(testassign(arr, v2), ans)
+        assert_equal(testassign(arr, v3), ans)
+        assert_raises(TypeError, lambda: testassign(arr, v4))
+        assert_equal(testassign(arr, v5), ans)
+        w[:] = 4
+        assert_equal(arr, np.array([(1, 4), (1, 4)], dtype=dt))
+
+        # test field-reordering, assignment by position, and self-assignment
+        a = np.array([(1, 2, 3)],
+                     dtype=[('foo', 'i8'), ('bar', 'i8'), ('baz', 'f4')])
+        a[['foo', 'bar']] = a[['bar', 'foo']]
+        assert_equal(a[0].item(), (2, 1, 3))
+
+        # test that this works even for 'simple_unaligned' structs
+        # (ie, that PyArray_EquivTypes cares about field order too)
+        a = np.array([(1, 2)], dtype=[('a', 'i4'), ('b', 'i4')])
+        a[['a', 'b']] = a[['b', 'a']]
+        assert_equal(a[0].item(), (2, 1))
+
+    def test_structuredscalar_indexing(self):
+        # test gh-7262
+        x = np.empty(shape=1, dtype="(2,)3S,(2,)3U")
+        assert_equal(x[["f0", "f1"]][0], x[0][["f0", "f1"]])
+        assert_equal(x[0], x[0][()])
+
+    def test_multiindex_titles(self):
+        a = np.zeros(4, dtype=[(('a', 'b'), 'i'), ('c', 'i'), ('d', 'i')])
+        assert_raises(KeyError, lambda: a[['a', 'c']])
+        assert_raises(KeyError, lambda: a[['a', 'a']])
+        assert_raises(ValueError, lambda: a[['b', 'b']])  # field exists, but repeated
+        a[['b', 'c']]  # no exception
+
+    def test_structured_cast_promotion_fieldorder(self):
+        # gh-15494
+        # dtypes with different field names are not promotable
+        A = ("a", "<i8")
+        B = ("b", ">i8")
+        ab = np.array([(1, 2)], dtype=[A, B])
+        ba = np.array([(1, 2)], dtype=[B, A])
+        assert_raises(TypeError, np.concatenate, ab, ba)
+        assert_raises(TypeError, np.result_type, ab.dtype, ba.dtype)
+        assert_raises(TypeError, np.promote_types, ab.dtype, ba.dtype)
+
+        # dtypes with same field names/order but different memory offsets
+        # and byte-order are promotable to packed nbo.
+        assert_equal(np.promote_types(ab.dtype, ba[['a', 'b']].dtype),
+                     repack_fields(ab.dtype.newbyteorder('N')))
+
+        # gh-13667
+        # dtypes with different fieldnames but castable field types are castable
+        assert_equal(np.can_cast(ab.dtype, ba.dtype), True)
+        assert_equal(ab.astype(ba.dtype).dtype, ba.dtype)
+        assert_equal(np.can_cast('f8,i8', [('f0', 'f8'), ('f1', 'i8')]), True)
+        assert_equal(np.can_cast('f8,i8', [('f1', 'f8'), ('f0', 'i8')]), True)
+        assert_equal(np.can_cast('f8,i8', [('f1', 'i8'), ('f0', 'f8')]), False)
+        assert_equal(np.can_cast('f8,i8', [('f1', 'i8'), ('f0', 'f8')],
+                                 casting='unsafe'), True)
+
+        ab[:] = ba  # make sure assignment still works
+
+        # tests of type-promotion of corresponding fields
+        dt1 = np.dtype([("", "i4")])
+        dt2 = np.dtype([("", "i8")])
+        assert_equal(np.promote_types(dt1, dt2), np.dtype([('f0', 'i8')]))
+        assert_equal(np.promote_types(dt2, dt1), np.dtype([('f0', 'i8')]))
+        assert_raises(TypeError, np.promote_types, dt1, np.dtype([("", "V3")]))
+        assert_equal(np.promote_types('i4,f8', 'i8,f4'),
+                     np.dtype([('f0', 'i8'), ('f1', 'f8')]))
+        # test nested case
+        dt1nest = np.dtype([("", dt1)])
+        dt2nest = np.dtype([("", dt2)])
+        assert_equal(np.promote_types(dt1nest, dt2nest),
+                     np.dtype([('f0', np.dtype([('f0', 'i8')]))]))
+
+        # note that offsets are lost when promoting:
+        dt = np.dtype({'names': ['x'], 'formats': ['i4'], 'offsets': [8]})
+        a = np.ones(3, dtype=dt)
+        assert_equal(np.concatenate([a, a]).dtype, np.dtype([('x', 'i4')]))
+
+    @pytest.mark.parametrize("dtype_dict", [
+            {"names": ["a", "b"], "formats": ["i4", "f"], "itemsize": 100},
+            {"names": ["a", "b"], "formats": ["i4", "f"],
+                 "offsets": [0, 12]}])
+    @pytest.mark.parametrize("align", [True, False])
+    def test_structured_promotion_packs(self, dtype_dict, align):
+        # Structured dtypes are packed when promoted (we consider the packed
+        # form to be "canonical"), so tere is no extra padding.
+        dtype = np.dtype(dtype_dict, align=align)
+        # Remove non "canonical" dtype options:
+        dtype_dict.pop("itemsize", None)
+        dtype_dict.pop("offsets", None)
+        expected = np.dtype(dtype_dict, align=align)
+
+        res = np.promote_types(dtype, dtype)
+        assert res.itemsize == expected.itemsize
+        assert res.fields == expected.fields
+
+        # But the "expected" one, should just be returned unchanged:
+        res = np.promote_types(expected, expected)
+        assert res is expected
+
+    def test_structured_asarray_is_view(self):
+        # A scalar viewing an array preserves its view even when creating a
+        # new array. This test documents behaviour, it may not be the best
+        # desired behaviour.
+        arr = np.array([1], dtype="i,i")
+        scalar = arr[0]
+        assert not scalar.flags.owndata  # view into the array
+        assert np.asarray(scalar).base is scalar
+        # But never when a dtype is passed in:
+        assert np.asarray(scalar, dtype=scalar.dtype).base is None
+        # A scalar which owns its data does not have this property.
+        # It is not easy to create one, one method is to use pickle:
+        scalar = pickle.loads(pickle.dumps(scalar))
+        assert scalar.flags.owndata
+        assert np.asarray(scalar).base is None
+
+class TestBool:
+    def test_test_interning(self):
+        a0 = np.bool(0)
+        b0 = np.bool(False)
+        assert_(a0 is b0)
+        a1 = np.bool(1)
+        b1 = np.bool(True)
+        assert_(a1 is b1)
+        assert_(np.array([True])[0] is a1)
+        assert_(np.array(True)[()] is a1)
+
+    def test_sum(self):
+        d = np.ones(101, dtype=bool)
+        assert_equal(d.sum(), d.size)
+        assert_equal(d[::2].sum(), d[::2].size)
+        assert_equal(d[::-2].sum(), d[::-2].size)
+
+        d = np.frombuffer(b'\xff\xff' * 100, dtype=bool)
+        assert_equal(d.sum(), d.size)
+        assert_equal(d[::2].sum(), d[::2].size)
+        assert_equal(d[::-2].sum(), d[::-2].size)
+
+    def check_count_nonzero(self, power, length):
+        powers = [2 ** i for i in range(length)]
+        for i in range(2**power):
+            l = [(i & x) != 0 for x in powers]
+            a = np.array(l, dtype=bool)
+            c = builtins.sum(l)
+            assert_equal(np.count_nonzero(a), c)
+            av = a.view(np.uint8)
+            av *= 3
+            assert_equal(np.count_nonzero(a), c)
+            av *= 4
+            assert_equal(np.count_nonzero(a), c)
+            av[av != 0] = 0xFF
+            assert_equal(np.count_nonzero(a), c)
+
+    def test_count_nonzero(self):
+        # check all 12 bit combinations in a length 17 array
+        # covers most cases of the 16 byte unrolled code
+        self.check_count_nonzero(12, 17)
+
+    @pytest.mark.slow
+    def test_count_nonzero_all(self):
+        # check all combinations in a length 17 array
+        # covers all cases of the 16 byte unrolled code
+        self.check_count_nonzero(17, 17)
+
+    def test_count_nonzero_unaligned(self):
+        # prevent mistakes as e.g. gh-4060
+        for o in range(7):
+            a = np.zeros((18,), dtype=bool)[o + 1:]
+            a[:o] = True
+            assert_equal(np.count_nonzero(a), builtins.sum(a.tolist()))
+            a = np.ones((18,), dtype=bool)[o + 1:]
+            a[:o] = False
+            assert_equal(np.count_nonzero(a), builtins.sum(a.tolist()))
+
+    def _test_cast_from_flexible(self, dtype):
+        # empty string -> false
+        for n in range(3):
+            v = np.array(b'', (dtype, n))
+            assert_equal(bool(v), False)
+            assert_equal(bool(v[()]), False)
+            assert_equal(v.astype(bool), False)
+            assert_(isinstance(v.astype(bool), np.ndarray))
+            assert_(v[()].astype(bool) is np.False_)
+
+        # anything else -> true
+        for n in range(1, 4):
+            for val in [b'a', b'0', b' ']:
+                v = np.array(val, (dtype, n))
+                assert_equal(bool(v), True)
+                assert_equal(bool(v[()]), True)
+                assert_equal(v.astype(bool), True)
+                assert_(isinstance(v.astype(bool), np.ndarray))
+                assert_(v[()].astype(bool) is np.True_)
+
+    def test_cast_from_void(self):
+        self._test_cast_from_flexible(np.void)
+
+    def test_cast_from_unicode(self):
+        self._test_cast_from_flexible(np.str_)
+
+    def test_cast_from_bytes(self):
+        self._test_cast_from_flexible(np.bytes_)
+
+
+class TestZeroSizeFlexible:
+    @staticmethod
+    def _zeros(shape, dtype=str):
+        dtype = np.dtype(dtype)
+        if dtype == np.void:
+            return np.zeros(shape, dtype=(dtype, 0))
+
+        # not constructable directly
+        dtype = np.dtype([('x', dtype, 0)])
+        return np.zeros(shape, dtype=dtype)['x']
+
+    def test_create(self):
+        zs = self._zeros(10, bytes)
+        assert_equal(zs.itemsize, 0)
+        zs = self._zeros(10, np.void)
+        assert_equal(zs.itemsize, 0)
+        zs = self._zeros(10, str)
+        assert_equal(zs.itemsize, 0)
+
+    def _test_sort_partition(self, name, kinds, **kwargs):
+        # Previously, these would all hang
+        for dt in [bytes, np.void, str]:
+            zs = self._zeros(10, dt)
+            sort_method = getattr(zs, name)
+            sort_func = getattr(np, name)
+            for kind in kinds:
+                sort_method(kind=kind, **kwargs)
+                sort_func(zs, kind=kind, **kwargs)
+
+    def test_sort(self):
+        self._test_sort_partition('sort', kinds='qhs')
+
+    def test_argsort(self):
+        self._test_sort_partition('argsort', kinds='qhs')
+
+    def test_partition(self):
+        self._test_sort_partition('partition', kinds=['introselect'], kth=2)
+
+    def test_argpartition(self):
+        self._test_sort_partition('argpartition', kinds=['introselect'], kth=2)
+
+    def test_resize(self):
+        # previously an error
+        for dt in [bytes, np.void, str]:
+            zs = self._zeros(10, dt)
+            zs.resize(25)
+            zs.resize((10, 10))
+
+    def test_view(self):
+        for dt in [bytes, np.void, str]:
+            zs = self._zeros(10, dt)
+
+            # viewing as itself should be allowed
+            assert_equal(zs.view(dt).dtype, np.dtype(dt))
+
+            # viewing as any non-empty type gives an empty result
+            assert_equal(zs.view((dt, 1)).shape, (0,))
+
+    def test_dumps(self):
+        zs = self._zeros(10, int)
+        assert_equal(zs, pickle.loads(zs.dumps()))
+
+    def test_pickle(self):
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            for dt in [bytes, np.void, str]:
+                zs = self._zeros(10, dt)
+                p = pickle.dumps(zs, protocol=proto)
+                zs2 = pickle.loads(p)
+
+                assert_equal(zs.dtype, zs2.dtype)
+
+    def test_pickle_empty(self):
+        """Checking if an empty array pickled and un-pickled will not cause a
+        segmentation fault"""
+        arr = np.array([]).reshape(999999, 0)
+        pk_dmp = pickle.dumps(arr)
+        pk_load = pickle.loads(pk_dmp)
+
+        assert pk_load.size == 0
+
+    @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5,
+                        reason="requires pickle protocol 5")
+    def test_pickle_with_buffercallback(self):
+        array = np.arange(10)
+        buffers = []
+        bytes_string = pickle.dumps(array, buffer_callback=buffers.append,
+                                    protocol=5)
+        array_from_buffer = pickle.loads(bytes_string, buffers=buffers)
+        # when using pickle protocol 5 with buffer callbacks,
+        # array_from_buffer is reconstructed from a buffer holding a view
+        # to the initial array's data, so modifying an element in array
+        # should modify it in array_from_buffer too.
+        array[0] = -1
+        assert array_from_buffer[0] == -1, array_from_buffer[0]
+
+
+class TestMethods:
+
+    sort_kinds = ['quicksort', 'heapsort', 'stable']
+
+    def test_all_where(self):
+        a = np.array([[True, False, True],
+                      [False, False, False],
+                      [True, True, True]])
+        wh_full = np.array([[True, False, True],
+                            [False, False, False],
+                            [True, False, True]])
+        wh_lower = np.array([[False],
+                             [False],
+                             [True]])
+        for _ax in [0, None]:
+            assert_equal(a.all(axis=_ax, where=wh_lower),
+                        np.all(a[wh_lower[:, 0], :], axis=_ax))
+            assert_equal(np.all(a, axis=_ax, where=wh_lower),
+                         a[wh_lower[:, 0], :].all(axis=_ax))
+
+        assert_equal(a.all(where=wh_full), True)
+        assert_equal(np.all(a, where=wh_full), True)
+        assert_equal(a.all(where=False), True)
+        assert_equal(np.all(a, where=False), True)
+
+    def test_any_where(self):
+        a = np.array([[True, False, True],
+                      [False, False, False],
+                      [True, True, True]])
+        wh_full = np.array([[False, True, False],
+                            [True, True, True],
+                            [False, False, False]])
+        wh_middle = np.array([[False],
+                              [True],
+                              [False]])
+        for _ax in [0, None]:
+            assert_equal(a.any(axis=_ax, where=wh_middle),
+                         np.any(a[wh_middle[:, 0], :], axis=_ax))
+            assert_equal(np.any(a, axis=_ax, where=wh_middle),
+                         a[wh_middle[:, 0], :].any(axis=_ax))
+        assert_equal(a.any(where=wh_full), False)
+        assert_equal(np.any(a, where=wh_full), False)
+        assert_equal(a.any(where=False), False)
+        assert_equal(np.any(a, where=False), False)
+
+    @pytest.mark.parametrize("dtype",
+            ["i8", "U10", "object", "datetime64[ms]"])
+    def test_any_and_all_result_dtype(self, dtype):
+        arr = np.ones(3, dtype=dtype)
+        assert arr.any().dtype == np.bool
+        assert arr.all().dtype == np.bool
+
+    def test_any_and_all_object_dtype(self):
+        # (seberg) Not sure we should even allow dtype here, but it is.
+        arr = np.ones(3, dtype=object)
+        # keepdims to prevent getting a scalar.
+        assert arr.any(dtype=object, keepdims=True).dtype == object
+        assert arr.all(dtype=object, keepdims=True).dtype == object
+
+    def test_compress(self):
+        tgt = [[5, 6, 7, 8, 9]]
+        arr = np.arange(10).reshape(2, 5)
+        out = arr.compress([0, 1], axis=0)
+        assert_equal(out, tgt)
+
+        tgt = [[1, 3], [6, 8]]
+        out = arr.compress([0, 1, 0, 1, 0], axis=1)
+        assert_equal(out, tgt)
+
+        tgt = [[1], [6]]
+        arr = np.arange(10).reshape(2, 5)
+        out = arr.compress([0, 1], axis=1)
+        assert_equal(out, tgt)
+
+        arr = np.arange(10).reshape(2, 5)
+        out = arr.compress([0, 1])
+        assert_equal(out, 1)
+
+    def test_choose(self):
+        x = 2 * np.ones((3,), dtype=int)
+        y = 3 * np.ones((3,), dtype=int)
+        x2 = 2 * np.ones((2, 3), dtype=int)
+        y2 = 3 * np.ones((2, 3), dtype=int)
+        ind = np.array([0, 0, 1])
+
+        A = ind.choose((x, y))
+        assert_equal(A, [2, 2, 3])
+
+        A = ind.choose((x2, y2))
+        assert_equal(A, [[2, 2, 3], [2, 2, 3]])
+
+        A = ind.choose((x, y2))
+        assert_equal(A, [[2, 2, 3], [2, 2, 3]])
+
+        oned = np.ones(1)
+        # gh-12031, caused SEGFAULT
+        assert_raises(TypeError, oned.choose, np.void(0), [oned])
+
+        out = np.array(0)
+        ret = np.choose(np.array(1), [10, 20, 30], out=out)
+        assert out is ret
+        assert_equal(out[()], 20)
+
+        # gh-6272 check overlap on out
+        x = np.arange(5)
+        y = np.choose([0, 0, 0], [x[:3], x[:3], x[:3]], out=x[1:4], mode='wrap')
+        assert_equal(y, np.array([0, 1, 2]))
+
+        # gh_28206 check fail when out not writeable
+        x = np.arange(3)
+        out = np.zeros(3)
+        out.setflags(write=False)
+        assert_raises(ValueError, np.choose, [0, 1, 2], [x, x, x], out=out)
+
+    def test_prod(self):
+        ba = [1, 2, 10, 11, 6, 5, 4]
+        ba2 = [[1, 2, 3, 4], [5, 6, 7, 9], [10, 3, 4, 5]]
+
+        for ctype in [np.int16, np.uint16, np.int32, np.uint32,
+                      np.float32, np.float64, np.complex64, np.complex128]:
+            a = np.array(ba, ctype)
+            a2 = np.array(ba2, ctype)
+            if ctype in ['1', 'b']:
+                assert_raises(ArithmeticError, a.prod)
+                assert_raises(ArithmeticError, a2.prod, axis=1)
+            else:
+                assert_equal(a.prod(axis=0), 26400)
+                assert_array_equal(a2.prod(axis=0),
+                                   np.array([50, 36, 84, 180], ctype))
+                assert_array_equal(a2.prod(axis=-1),
+                                   np.array([24, 1890, 600], ctype))
+
+    @pytest.mark.parametrize('dtype', [None, object])
+    def test_repeat(self, dtype):
+        m = np.array([1, 2, 3, 4, 5, 6], dtype=dtype)
+        m_rect = m.reshape((2, 3))
+
+        A = m.repeat([1, 3, 2, 1, 1, 2])
+        assert_equal(A, [1, 2, 2, 2, 3,
+                         3, 4, 5, 6, 6])
+
+        A = m.repeat(2)
+        assert_equal(A, [1, 1, 2, 2, 3, 3,
+                         4, 4, 5, 5, 6, 6])
+
+        A = m_rect.repeat([2, 1], axis=0)
+        assert_equal(A, [[1, 2, 3],
+                         [1, 2, 3],
+                         [4, 5, 6]])
+
+        A = m_rect.repeat([1, 3, 2], axis=1)
+        assert_equal(A, [[1, 2, 2, 2, 3, 3],
+                         [4, 5, 5, 5, 6, 6]])
+
+        A = m_rect.repeat(2, axis=0)
+        assert_equal(A, [[1, 2, 3],
+                         [1, 2, 3],
+                         [4, 5, 6],
+                         [4, 5, 6]])
+
+        A = m_rect.repeat(2, axis=1)
+        assert_equal(A, [[1, 1, 2, 2, 3, 3],
+                         [4, 4, 5, 5, 6, 6]])
+
+    def test_reshape(self):
+        arr = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]])
+
+        tgt = [[1, 2, 3, 4, 5, 6], [7, 8, 9, 10, 11, 12]]
+        assert_equal(arr.reshape(2, 6), tgt)
+
+        tgt = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]
+        assert_equal(arr.reshape(3, 4), tgt)
+
+        tgt = [[1, 10, 8, 6], [4, 2, 11, 9], [7, 5, 3, 12]]
+        assert_equal(arr.reshape((3, 4), order='F'), tgt)
+
+        tgt = [[1, 4, 7, 10], [2, 5, 8, 11], [3, 6, 9, 12]]
+        assert_equal(arr.T.reshape((3, 4), order='C'), tgt)
+
+    def test_round(self):
+        def check_round(arr, expected, *round_args):
+            assert_equal(arr.round(*round_args), expected)
+            # With output array
+            out = np.zeros_like(arr)
+            res = arr.round(*round_args, out=out)
+            assert_equal(out, expected)
+            assert out is res
+
+        check_round(np.array([1, 2, 3]), [1, 2, 3])
+        check_round(np.array([1.2, 1.5]), [1, 2])
+        check_round(np.array(1.5), 2)
+        check_round(np.array([12.2, 15.5]), [10, 20], -1)
+        check_round(np.array([12.15, 15.51]), [12.2, 15.5], 1)
+        # Complex rounding
+        check_round(np.array([4.5 + 1.5j]), [4 + 2j])
+        check_round(np.array([12.5 + 15.5j]), [10 + 20j], -1)
+
+    @pytest.mark.parametrize('dt', ['uint8', int, float, complex])
+    def test_round_copies(self, dt):
+        a = np.arange(3, dtype=dt)
+        assert not np.shares_memory(a.round(), a)
+        assert not np.shares_memory(a.round(decimals=2), a)
+
+        out = np.empty(3, dtype=dt)
+        assert not np.shares_memory(a.round(out=out), a)
+
+        a = np.arange(12).astype(dt).reshape(3, 4).T
+
+        assert a.flags.f_contiguous
+        assert np.round(a).flags.f_contiguous
+
+    def test_squeeze(self):
+        a = np.array([[[1], [2], [3]]])
+        assert_equal(a.squeeze(), [1, 2, 3])
+        assert_equal(a.squeeze(axis=(0,)), [[1], [2], [3]])
+        assert_raises(ValueError, a.squeeze, axis=(1,))
+        assert_equal(a.squeeze(axis=(2,)), [[1, 2, 3]])
+
+    def test_transpose(self):
+        a = np.array([[1, 2], [3, 4]])
+        assert_equal(a.transpose(), [[1, 3], [2, 4]])
+        assert_raises(ValueError, lambda: a.transpose(0))
+        assert_raises(ValueError, lambda: a.transpose(0, 0))
+        assert_raises(ValueError, lambda: a.transpose(0, 1, 2))
+
+    def test_sort(self):
+        # test ordering for floats and complex containing nans. It is only
+        # necessary to check the less-than comparison, so sorts that
+        # only follow the insertion sort path are sufficient. We only
+        # test doubles and complex doubles as the logic is the same.
+
+        # check doubles
+        msg = "Test real sort order with nans"
+        a = np.array([np.nan, 1, 0])
+        b = np.sort(a)
+        assert_equal(b, a[::-1], msg)
+        # check complex
+        msg = "Test complex sort order with nans"
+        a = np.zeros(9, dtype=np.complex128)
+        a.real += [np.nan, np.nan, np.nan, 1, 0, 1, 1, 0, 0]
+        a.imag += [np.nan, 1, 0, np.nan, np.nan, 1, 0, 1, 0]
+        b = np.sort(a)
+        assert_equal(b, a[::-1], msg)
+
+        with assert_raises_regex(
+            ValueError,
+            "`kind` and keyword parameters can't be provided at the same time"
+        ):
+            np.sort(a, kind="stable", stable=True)
+
+    # all c scalar sorts use the same code with different types
+    # so it suffices to run a quick check with one type. The number
+    # of sorted items must be greater than ~50 to check the actual
+    # algorithm because quick and merge sort fall over to insertion
+    # sort for small arrays.
+
+    @pytest.mark.parametrize('dtype', [np.uint8, np.uint16, np.uint32, np.uint64,
+                                       np.float16, np.float32, np.float64,
+                                       np.longdouble])
+    def test_sort_unsigned(self, dtype):
+        a = np.arange(101, dtype=dtype)
+        b = a[::-1].copy()
+        for kind in self.sort_kinds:
+            msg = f"scalar sort, kind={kind}"
+            c = a.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+            c = b.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+
+    @pytest.mark.parametrize('dtype',
+                             [np.int8, np.int16, np.int32, np.int64, np.float16,
+                              np.float32, np.float64, np.longdouble])
+    def test_sort_signed(self, dtype):
+        a = np.arange(-50, 51, dtype=dtype)
+        b = a[::-1].copy()
+        for kind in self.sort_kinds:
+            msg = f"scalar sort, kind={kind}"
+            c = a.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+            c = b.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+
+    @pytest.mark.parametrize('dtype', [np.float32, np.float64, np.longdouble])
+    @pytest.mark.parametrize('part', ['real', 'imag'])
+    def test_sort_complex(self, part, dtype):
+        # test complex sorts. These use the same code as the scalars
+        # but the compare function differs.
+        cdtype = {
+            np.single: np.csingle,
+            np.double: np.cdouble,
+            np.longdouble: np.clongdouble,
+        }[dtype]
+        a = np.arange(-50, 51, dtype=dtype)
+        b = a[::-1].copy()
+        ai = (a * (1 + 1j)).astype(cdtype)
+        bi = (b * (1 + 1j)).astype(cdtype)
+        setattr(ai, part, 1)
+        setattr(bi, part, 1)
+        for kind in self.sort_kinds:
+            msg = f"complex sort, {part} part == 1, kind={kind}"
+            c = ai.copy()
+            c.sort(kind=kind)
+            assert_equal(c, ai, msg)
+            c = bi.copy()
+            c.sort(kind=kind)
+            assert_equal(c, ai, msg)
+
+    def test_sort_complex_byte_swapping(self):
+        # test sorting of complex arrays requiring byte-swapping, gh-5441
+        for endianness in '<>':
+            for dt in np.typecodes['Complex']:
+                arr = np.array([1 + 3.j, 2 + 2.j, 3 + 1.j], dtype=endianness + dt)
+                c = arr.copy()
+                c.sort()
+                msg = f'byte-swapped complex sort, dtype={dt}'
+                assert_equal(c, arr, msg)
+
+    @pytest.mark.parametrize('dtype', [np.bytes_, np.str_])
+    def test_sort_string(self, dtype):
+        # np.array will perform the encoding to bytes for us in the bytes test
+        a = np.array(['aaaaaaaa' + chr(i) for i in range(101)], dtype=dtype)
+        b = a[::-1].copy()
+        for kind in self.sort_kinds:
+            msg = f"kind={kind}"
+            c = a.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+            c = b.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+
+    def test_sort_object(self):
+        # test object array sorts.
+        a = np.empty((101,), dtype=object)
+        a[:] = list(range(101))
+        b = a[::-1]
+        for kind in ['q', 'h', 'm']:
+            msg = f"kind={kind}"
+            c = a.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+            c = b.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+
+    @pytest.mark.parametrize("dt", [
+            np.dtype([('f', float), ('i', int)]),
+            np.dtype([('f', float), ('i', object)])])
+    @pytest.mark.parametrize("step", [1, 2])
+    def test_sort_structured(self, dt, step):
+        # test record array sorts.
+        a = np.array([(i, i) for i in range(101 * step)], dtype=dt)
+        b = a[::-1]
+        for kind in ['q', 'h', 'm']:
+            msg = f"kind={kind}"
+            c = a.copy()[::step]
+            indx = c.argsort(kind=kind)
+            c.sort(kind=kind)
+            assert_equal(c, a[::step], msg)
+            assert_equal(a[::step][indx], a[::step], msg)
+            c = b.copy()[::step]
+            indx = c.argsort(kind=kind)
+            c.sort(kind=kind)
+            assert_equal(c, a[step - 1::step], msg)
+            assert_equal(b[::step][indx], a[step - 1::step], msg)
+
+    @pytest.mark.parametrize('dtype', ['datetime64[D]', 'timedelta64[D]'])
+    def test_sort_time(self, dtype):
+        # test datetime64 and timedelta64 sorts.
+        a = np.arange(0, 101, dtype=dtype)
+        b = a[::-1]
+        for kind in ['q', 'h', 'm']:
+            msg = f"kind={kind}"
+            c = a.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+            c = b.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+
+    def test_sort_axis(self):
+        # check axis handling. This should be the same for all type
+        # specific sorts, so we only check it for one type and one kind
+        a = np.array([[3, 2], [1, 0]])
+        b = np.array([[1, 0], [3, 2]])
+        c = np.array([[2, 3], [0, 1]])
+        d = a.copy()
+        d.sort(axis=0)
+        assert_equal(d, b, "test sort with axis=0")
+        d = a.copy()
+        d.sort(axis=1)
+        assert_equal(d, c, "test sort with axis=1")
+        d = a.copy()
+        d.sort()
+        assert_equal(d, c, "test sort with default axis")
+
+    def test_sort_size_0(self):
+        # check axis handling for multidimensional empty arrays
+        a = np.array([]).reshape((3, 2, 1, 0))
+        for axis in range(-a.ndim, a.ndim):
+            msg = f'test empty array sort with axis={axis}'
+            assert_equal(np.sort(a, axis=axis), a, msg)
+        msg = 'test empty array sort with axis=None'
+        assert_equal(np.sort(a, axis=None), a.ravel(), msg)
+
+    def test_sort_bad_ordering(self):
+        # test generic class with bogus ordering,
+        # should not segfault.
+        class Boom:
+            def __lt__(self, other):
+                return True
+
+        a = np.array([Boom()] * 100, dtype=object)
+        for kind in self.sort_kinds:
+            msg = f"kind={kind}"
+            c = a.copy()
+            c.sort(kind=kind)
+            assert_equal(c, a, msg)
+
+    def test_void_sort(self):
+        # gh-8210 - previously segfaulted
+        for i in range(4):
+            rand = np.random.randint(256, size=4000, dtype=np.uint8)
+            arr = rand.view('V4')
+            arr[::-1].sort()
+
+        dt = np.dtype([('val', 'i4', (1,))])
+        for i in range(4):
+            rand = np.random.randint(256, size=4000, dtype=np.uint8)
+            arr = rand.view(dt)
+            arr[::-1].sort()
+
+    def test_sort_raises(self):
+        # gh-9404
+        arr = np.array([0, datetime.now(), 1], dtype=object)
+        for kind in self.sort_kinds:
+            assert_raises(TypeError, arr.sort, kind=kind)
+        # gh-3879
+
+        class Raiser:
+            def raises_anything(*args, **kwargs):
+                raise TypeError("SOMETHING ERRORED")
+            __eq__ = __ne__ = __lt__ = __gt__ = __ge__ = __le__ = raises_anything
+        arr = np.array([[Raiser(), n] for n in range(10)]).reshape(-1)
+        np.random.shuffle(arr)
+        for kind in self.sort_kinds:
+            assert_raises(TypeError, arr.sort, kind=kind)
+
+    def test_sort_degraded(self):
+        # test degraded dataset would take minutes to run with normal qsort
+        d = np.arange(1000000)
+        do = d.copy()
+        x = d
+        # create a median of 3 killer where each median is the sorted second
+        # last element of the quicksort partition
+        while x.size > 3:
+            mid = x.size // 2
+            x[mid], x[-2] = x[-2], x[mid]
+            x = x[:-2]
+
+        assert_equal(np.sort(d), do)
+        assert_equal(d[np.argsort(d)], do)
+
+    def test_copy(self):
+        def assert_fortran(arr):
+            assert_(arr.flags.fortran)
+            assert_(arr.flags.f_contiguous)
+            assert_(not arr.flags.c_contiguous)
+
+        def assert_c(arr):
+            assert_(not arr.flags.fortran)
+            assert_(not arr.flags.f_contiguous)
+            assert_(arr.flags.c_contiguous)
+
+        a = np.empty((2, 2), order='F')
+        # Test copying a Fortran array
+        assert_c(a.copy())
+        assert_c(a.copy('C'))
+        assert_fortran(a.copy('F'))
+        assert_fortran(a.copy('A'))
+
+        # Now test starting with a C array.
+        a = np.empty((2, 2), order='C')
+        assert_c(a.copy())
+        assert_c(a.copy('C'))
+        assert_fortran(a.copy('F'))
+        assert_c(a.copy('A'))
+
+    @pytest.mark.parametrize("dtype", ['O', np.int32, 'i,O'])
+    def test__deepcopy__(self, dtype):
+        # Force the entry of NULLs into array
+        a = np.empty(4, dtype=dtype)
+        ctypes.memset(a.ctypes.data, 0, a.nbytes)
+
+        # Ensure no error is raised, see gh-21833
+        b = a.__deepcopy__({})
+
+        a[0] = 42
+        with pytest.raises(AssertionError):
+            assert_array_equal(a, b)
+
+    def test__deepcopy___void_scalar(self):
+        # see comments in gh-29643
+        value = np.void('Rex', dtype=[('name', 'U10')])
+        value_deepcopy = value.__deepcopy__(None)
+        value[0] = None
+        assert value_deepcopy[0] == 'Rex'
+
+    @pytest.mark.parametrize("sctype", [np.int64, np.float32, np.float64])
+    def test__deepcopy__scalar(self, sctype):
+        # test optimization from gh-29656
+        value = sctype(1.1)
+        value_deepcopy = value.__deepcopy__(None)
+        assert value is value_deepcopy
+
+    def test__deepcopy__catches_failure(self):
+        class MyObj:
+            def __deepcopy__(self, *args, **kwargs):
+                raise RuntimeError
+
+        arr = np.array([1, MyObj(), 3], dtype='O')
+        with pytest.raises(RuntimeError):
+            arr.__deepcopy__({})
+
+    def test_sort_order(self):
+        # Test sorting an array with fields
+        x1 = np.array([21, 32, 14])
+        x2 = np.array(['my', 'first', 'name'])
+        x3 = np.array([3.1, 4.5, 6.2])
+        r = np.rec.fromarrays([x1, x2, x3], names='id,word,number')
+
+        r.sort(order=['id'])
+        assert_equal(r.id, np.array([14, 21, 32]))
+        assert_equal(r.word, np.array(['name', 'my', 'first']))
+        assert_equal(r.number, np.array([6.2, 3.1, 4.5]))
+
+        r.sort(order=['word'])
+        assert_equal(r.id, np.array([32, 21, 14]))
+        assert_equal(r.word, np.array(['first', 'my', 'name']))
+        assert_equal(r.number, np.array([4.5, 3.1, 6.2]))
+
+        r.sort(order=['number'])
+        assert_equal(r.id, np.array([21, 32, 14]))
+        assert_equal(r.word, np.array(['my', 'first', 'name']))
+        assert_equal(r.number, np.array([3.1, 4.5, 6.2]))
+
+        assert_raises_regex(ValueError, 'duplicate',
+            lambda: r.sort(order=['id', 'id']))
+
+        if sys.byteorder == 'little':
+            strtype = '>i2'
+        else:
+            strtype = '<i2'
+        mydtype = [('name', 'U5'), ('col2', strtype)]
+        r = np.array([('a', 1), ('b', 255), ('c', 3), ('d', 258)],
+                     dtype=mydtype)
+        r.sort(order='col2')
+        assert_equal(r['col2'], [1, 3, 255, 258])
+        assert_equal(r, np.array([('a', 1), ('c', 3), ('b', 255), ('d', 258)],
+                                 dtype=mydtype))
+
+    def test_argsort(self):
+        # all c scalar argsorts use the same code with different types
+        # so it suffices to run a quick check with one type. The number
+        # of sorted items must be greater than ~50 to check the actual
+        # algorithm because quick and merge sort fall over to insertion
+        # sort for small arrays.
+
+        for dtype in [np.int32, np.uint32, np.float32]:
+            a = np.arange(101, dtype=dtype)
+            b = a[::-1].copy()
+            for kind in self.sort_kinds:
+                msg = f"scalar argsort, kind={kind}, dtype={dtype}"
+                assert_equal(a.copy().argsort(kind=kind), a, msg)
+                assert_equal(b.copy().argsort(kind=kind), b, msg)
+
+        # test complex argsorts. These use the same code as the scalars
+        # but the compare function differs.
+        ai = a * 1j + 1
+        bi = b * 1j + 1
+        for kind in self.sort_kinds:
+            msg = f"complex argsort, kind={kind}"
+            assert_equal(ai.copy().argsort(kind=kind), a, msg)
+            assert_equal(bi.copy().argsort(kind=kind), b, msg)
+        ai = a + 1j
+        bi = b + 1j
+        for kind in self.sort_kinds:
+            msg = f"complex argsort, kind={kind}"
+            assert_equal(ai.copy().argsort(kind=kind), a, msg)
+            assert_equal(bi.copy().argsort(kind=kind), b, msg)
+
+        # test argsort of complex arrays requiring byte-swapping, gh-5441
+        for endianness in '<>':
+            for dt in np.typecodes['Complex']:
+                arr = np.array([1 + 3.j, 2 + 2.j, 3 + 1.j], dtype=endianness + dt)
+                msg = f'byte-swapped complex argsort, dtype={dt}'
+                assert_equal(arr.argsort(),
+                             np.arange(len(arr), dtype=np.intp), msg)
+
+        # test string argsorts.
+        s = 'aaaaaaaa'
+        a = np.array([s + chr(i) for i in range(101)])
+        b = a[::-1].copy()
+        r = np.arange(101)
+        rr = r[::-1]
+        for kind in self.sort_kinds:
+            msg = f"string argsort, kind={kind}"
+            assert_equal(a.copy().argsort(kind=kind), r, msg)
+            assert_equal(b.copy().argsort(kind=kind), rr, msg)
+
+        # test unicode argsorts.
+        s = 'aaaaaaaa'
+        a = np.array([s + chr(i) for i in range(101)], dtype=np.str_)
+        b = a[::-1]
+        r = np.arange(101)
+        rr = r[::-1]
+        for kind in self.sort_kinds:
+            msg = f"unicode argsort, kind={kind}"
+            assert_equal(a.copy().argsort(kind=kind), r, msg)
+            assert_equal(b.copy().argsort(kind=kind), rr, msg)
+
+        # test object array argsorts.
+        a = np.empty((101,), dtype=object)
+        a[:] = list(range(101))
+        b = a[::-1]
+        r = np.arange(101)
+        rr = r[::-1]
+        for kind in self.sort_kinds:
+            msg = f"object argsort, kind={kind}"
+            assert_equal(a.copy().argsort(kind=kind), r, msg)
+            assert_equal(b.copy().argsort(kind=kind), rr, msg)
+
+        # test structured array argsorts.
+        dt = np.dtype([('f', float), ('i', int)])
+        a = np.array([(i, i) for i in range(101)], dtype=dt)
+        b = a[::-1]
+        r = np.arange(101)
+        rr = r[::-1]
+        for kind in self.sort_kinds:
+            msg = f"structured array argsort, kind={kind}"
+            assert_equal(a.copy().argsort(kind=kind), r, msg)
+            assert_equal(b.copy().argsort(kind=kind), rr, msg)
+
+        # test datetime64 argsorts.
+        a = np.arange(0, 101, dtype='datetime64[D]')
+        b = a[::-1]
+        r = np.arange(101)
+        rr = r[::-1]
+        for kind in ['q', 'h', 'm']:
+            msg = f"datetime64 argsort, kind={kind}"
+            assert_equal(a.copy().argsort(kind=kind), r, msg)
+            assert_equal(b.copy().argsort(kind=kind), rr, msg)
+
+        # test timedelta64 argsorts.
+        a = np.arange(0, 101, dtype='timedelta64[D]')
+        b = a[::-1]
+        r = np.arange(101)
+        rr = r[::-1]
+        for kind in ['q', 'h', 'm']:
+            msg = f"timedelta64 argsort, kind={kind}"
+            assert_equal(a.copy().argsort(kind=kind), r, msg)
+            assert_equal(b.copy().argsort(kind=kind), rr, msg)
+
+        # check axis handling. This should be the same for all type
+        # specific argsorts, so we only check it for one type and one kind
+        a = np.array([[3, 2], [1, 0]])
+        b = np.array([[1, 1], [0, 0]])
+        c = np.array([[1, 0], [1, 0]])
+        assert_equal(a.copy().argsort(axis=0), b)
+        assert_equal(a.copy().argsort(axis=1), c)
+        assert_equal(a.copy().argsort(), c)
+
+        # check axis handling for multidimensional empty arrays
+        a = np.array([]).reshape((3, 2, 1, 0))
+        for axis in range(-a.ndim, a.ndim):
+            msg = f'test empty array argsort with axis={axis}'
+            assert_equal(np.argsort(a, axis=axis),
+                         np.zeros_like(a, dtype=np.intp), msg)
+        msg = 'test empty array argsort with axis=None'
+        assert_equal(np.argsort(a, axis=None),
+                     np.zeros_like(a.ravel(), dtype=np.intp), msg)
+
+        # check that stable argsorts are stable
+        r = np.arange(100)
+        # scalars
+        a = np.zeros(100)
+        assert_equal(a.argsort(kind='m'), r)
+        # complex
+        a = np.zeros(100, dtype=complex)
+        assert_equal(a.argsort(kind='m'), r)
+        # string
+        a = np.array(['aaaaaaaaa' for i in range(100)])
+        assert_equal(a.argsort(kind='m'), r)
+        # unicode
+        a = np.array(['aaaaaaaaa' for i in range(100)], dtype=np.str_)
+        assert_equal(a.argsort(kind='m'), r)
+
+        with assert_raises_regex(
+            ValueError,
+            "`kind` and keyword parameters can't be provided at the same time"
+        ):
+            np.argsort(a, kind="stable", stable=True)
+
+    def test_sort_unicode_kind(self):
+        d = np.arange(10)
+        k = b'\xc3\xa4'.decode("UTF8")
+        assert_raises(ValueError, d.sort, kind=k)
+        assert_raises(ValueError, d.argsort, kind=k)
+
+    @pytest.mark.parametrize('a', [
+        np.array([0, 1, np.nan], dtype=np.float16),
+        np.array([0, 1, np.nan], dtype=np.float32),
+        np.array([0, 1, np.nan]),
+    ])
+    def test_searchsorted_floats(self, a):
+        # test for floats arrays containing nans. Explicitly test
+        # half, single, and double precision floats to verify that
+        # the NaN-handling is correct.
+        msg = f"Test real ({a.dtype}) searchsorted with nans, side='l'"
+        b = a.searchsorted(a, side='left')
+        assert_equal(b, np.arange(3), msg)
+        msg = f"Test real ({a.dtype}) searchsorted with nans, side='r'"
+        b = a.searchsorted(a, side='right')
+        assert_equal(b, np.arange(1, 4), msg)
+        # check keyword arguments
+        a.searchsorted(v=1)
+        x = np.array([0, 1, np.nan], dtype='float32')
+        y = np.searchsorted(x, x[-1])
+        assert_equal(y, 2)
+
+    def test_searchsorted_complex(self):
+        # test for complex arrays containing nans.
+        # The search sorted routines use the compare functions for the
+        # array type, so this checks if that is consistent with the sort
+        # order.
+        # check double complex
+        a = np.zeros(9, dtype=np.complex128)
+        a.real += [0, 0, 1, 1, 0, 1, np.nan, np.nan, np.nan]
+        a.imag += [0, 1, 0, 1, np.nan, np.nan, 0, 1, np.nan]
+        msg = "Test complex searchsorted with nans, side='l'"
+        b = a.searchsorted(a, side='left')
+        assert_equal(b, np.arange(9), msg)
+        msg = "Test complex searchsorted with nans, side='r'"
+        b = a.searchsorted(a, side='right')
+        assert_equal(b, np.arange(1, 10), msg)
+        msg = "Test searchsorted with little endian, side='l'"
+        a = np.array([0, 128], dtype='<i4')
+        b = a.searchsorted(np.array(128, dtype='<i4'))
+        assert_equal(b, 1, msg)
+        msg = "Test searchsorted with big endian, side='l'"
+        a = np.array([0, 128], dtype='>i4')
+        b = a.searchsorted(np.array(128, dtype='>i4'))
+        assert_equal(b, 1, msg)
+
+    def test_searchsorted_n_elements(self):
+        # Check 0 elements
+        a = np.ones(0)
+        b = a.searchsorted([0, 1, 2], 'left')
+        assert_equal(b, [0, 0, 0])
+        b = a.searchsorted([0, 1, 2], 'right')
+        assert_equal(b, [0, 0, 0])
+        a = np.ones(1)
+        # Check 1 element
+        b = a.searchsorted([0, 1, 2], 'left')
+        assert_equal(b, [0, 0, 1])
+        b = a.searchsorted([0, 1, 2], 'right')
+        assert_equal(b, [0, 1, 1])
+        # Check all elements equal
+        a = np.ones(2)
+        b = a.searchsorted([0, 1, 2], 'left')
+        assert_equal(b, [0, 0, 2])
+        b = a.searchsorted([0, 1, 2], 'right')
+        assert_equal(b, [0, 2, 2])
+
+    def test_searchsorted_unaligned_array(self):
+        # Test searching unaligned array
+        a = np.arange(10)
+        aligned = np.empty(a.itemsize * a.size + 1, 'uint8')
+        unaligned = aligned[1:].view(a.dtype)
+        unaligned[:] = a
+        # Test searching unaligned array
+        b = unaligned.searchsorted(a, 'left')
+        assert_equal(b, a)
+        b = unaligned.searchsorted(a, 'right')
+        assert_equal(b, a + 1)
+        # Test searching for unaligned keys
+        b = a.searchsorted(unaligned, 'left')
+        assert_equal(b, a)
+        b = a.searchsorted(unaligned, 'right')
+        assert_equal(b, a + 1)
+
+    def test_searchsorted_resetting(self):
+        # Test smart resetting of binsearch indices
+        a = np.arange(5)
+        b = a.searchsorted([6, 5, 4], 'left')
+        assert_equal(b, [5, 5, 4])
+        b = a.searchsorted([6, 5, 4], 'right')
+        assert_equal(b, [5, 5, 5])
+
+    def test_searchsorted_type_specific(self):
+        # Test all type specific binary search functions
+        types = ''.join((np.typecodes['AllInteger'], np.typecodes['AllFloat'],
+                         np.typecodes['Datetime'], '?O'))
+        for dt in types:
+            if dt == 'M':
+                dt = 'M8[D]'
+            if dt == '?':
+                a = np.arange(2, dtype=dt)
+                out = np.arange(2)
+            else:
+                a = np.arange(0, 5, dtype=dt)
+                out = np.arange(5)
+            b = a.searchsorted(a, 'left')
+            assert_equal(b, out)
+            b = a.searchsorted(a, 'right')
+            assert_equal(b, out + 1)
+            # Test empty array, use a fresh array to get warnings in
+            # valgrind if access happens.
+            e = np.ndarray(shape=0, buffer=b'', dtype=dt)
+            b = e.searchsorted(a, 'left')
+            assert_array_equal(b, np.zeros(len(a), dtype=np.intp))
+            b = a.searchsorted(e, 'left')
+            assert_array_equal(b, np.zeros(0, dtype=np.intp))
+
+    def test_searchsorted_unicode(self):
+        # Test searchsorted on unicode strings.
+
+        # 1.6.1 contained a string length miscalculation in
+        # arraytypes.c.src:UNICODE_compare() which manifested as
+        # incorrect/inconsistent results from searchsorted.
+        a = np.array(['P:\\20x_dapi_cy3\\20x_dapi_cy3_20100185_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100186_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100187_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100189_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100190_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100191_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100192_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100193_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100194_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100195_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100196_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100197_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100198_1',
+                      'P:\\20x_dapi_cy3\\20x_dapi_cy3_20100199_1'],
+                     dtype=np.str_)
+        ind = np.arange(len(a))
+        assert_equal([a.searchsorted(v, 'left') for v in a], ind)
+        assert_equal([a.searchsorted(v, 'right') for v in a], ind + 1)
+        assert_equal([a.searchsorted(a[i], 'left') for i in ind], ind)
+        assert_equal([a.searchsorted(a[i], 'right') for i in ind], ind + 1)
+
+    def test_searchsorted_with_invalid_sorter(self):
+        a = np.array([5, 2, 1, 3, 4])
+        s = np.argsort(a)
+        assert_raises(TypeError, np.searchsorted, a, 0,
+                      sorter=np.array((1, (2, 3)), dtype=object))
+        assert_raises(TypeError, np.searchsorted, a, 0, sorter=[1.1])
+        assert_raises(ValueError, np.searchsorted, a, 0, sorter=[1, 2, 3, 4])
+        assert_raises(ValueError, np.searchsorted, a, 0, sorter=[1, 2, 3, 4, 5, 6])
+
+        # bounds check
+        assert_raises(ValueError, np.searchsorted, a, 4, sorter=[0, 1, 2, 3, 5])
+        assert_raises(ValueError, np.searchsorted, a, 0, sorter=[-1, 0, 1, 2, 3])
+        assert_raises(ValueError, np.searchsorted, a, 0, sorter=[4, 0, -1, 2, 3])
+
+    def test_searchsorted_with_sorter(self):
+        a = np.random.rand(300)
+        s = a.argsort()
+        b = np.sort(a)
+        k = np.linspace(0, 1, 20)
+        assert_equal(b.searchsorted(k), a.searchsorted(k, sorter=s))
+
+        a = np.array([0, 1, 2, 3, 5] * 20)
+        s = a.argsort()
+        k = [0, 1, 2, 3, 5]
+        expected = [0, 20, 40, 60, 80]
+        assert_equal(a.searchsorted(k, side='left', sorter=s), expected)
+        expected = [20, 40, 60, 80, 100]
+        assert_equal(a.searchsorted(k, side='right', sorter=s), expected)
+
+        # Test searching unaligned array
+        keys = np.arange(10)
+        a = keys.copy()
+        np.random.shuffle(s)
+        s = a.argsort()
+        aligned = np.empty(a.itemsize * a.size + 1, 'uint8')
+        unaligned = aligned[1:].view(a.dtype)
+        # Test searching unaligned array
+        unaligned[:] = a
+        b = unaligned.searchsorted(keys, 'left', s)
+        assert_equal(b, keys)
+        b = unaligned.searchsorted(keys, 'right', s)
+        assert_equal(b, keys + 1)
+        # Test searching for unaligned keys
+        unaligned[:] = keys
+        b = a.searchsorted(unaligned, 'left', s)
+        assert_equal(b, keys)
+        b = a.searchsorted(unaligned, 'right', s)
+        assert_equal(b, keys + 1)
+
+        # Test all type specific indirect binary search functions
+        types = ''.join((np.typecodes['AllInteger'], np.typecodes['AllFloat'],
+                         np.typecodes['Datetime'], '?O'))
+        for dt in types:
+            if dt == 'M':
+                dt = 'M8[D]'
+            if dt == '?':
+                a = np.array([1, 0], dtype=dt)
+                # We want the sorter array to be of a type that is different
+                # from np.intp in all platforms, to check for #4698
+                s = np.array([1, 0], dtype=np.int16)
+                out = np.array([1, 0])
+            else:
+                a = np.array([3, 4, 1, 2, 0], dtype=dt)
+                # We want the sorter array to be of a type that is different
+                # from np.intp in all platforms, to check for #4698
+                s = np.array([4, 2, 3, 0, 1], dtype=np.int16)
+                out = np.array([3, 4, 1, 2, 0], dtype=np.intp)
+            b = a.searchsorted(a, 'left', s)
+            assert_equal(b, out)
+            b = a.searchsorted(a, 'right', s)
+            assert_equal(b, out + 1)
+            # Test empty array, use a fresh array to get warnings in
+            # valgrind if access happens.
+            e = np.ndarray(shape=0, buffer=b'', dtype=dt)
+            b = e.searchsorted(a, 'left', s[:0])
+            assert_array_equal(b, np.zeros(len(a), dtype=np.intp))
+            b = a.searchsorted(e, 'left', s)
+            assert_array_equal(b, np.zeros(0, dtype=np.intp))
+
+        # Test non-contiguous sorter array
+        a = np.array([3, 4, 1, 2, 0])
+        srt = np.empty((10,), dtype=np.intp)
+        srt[1::2] = -1
+        srt[::2] = [4, 2, 3, 0, 1]
+        s = srt[::2]
+        out = np.array([3, 4, 1, 2, 0], dtype=np.intp)
+        b = a.searchsorted(a, 'left', s)
+        assert_equal(b, out)
+        b = a.searchsorted(a, 'right', s)
+        assert_equal(b, out + 1)
+
+    def test_searchsorted_return_type(self):
+        # Functions returning indices should always return base ndarrays
+        class A(np.ndarray):
+            pass
+        a = np.arange(5).view(A)
+        b = np.arange(1, 3).view(A)
+        s = np.arange(5).view(A)
+        assert_(not isinstance(a.searchsorted(b, 'left'), A))
+        assert_(not isinstance(a.searchsorted(b, 'right'), A))
+        assert_(not isinstance(a.searchsorted(b, 'left', s), A))
+        assert_(not isinstance(a.searchsorted(b, 'right', s), A))
+
+    @pytest.mark.parametrize("dtype", np.typecodes["All"])
+    def test_argpartition_out_of_range(self, dtype):
+        # Test out of range values in kth raise an error, gh-5469
+        d = np.arange(10).astype(dtype=dtype)
+        assert_raises(ValueError, d.argpartition, 10)
+        assert_raises(ValueError, d.argpartition, -11)
+
+    @pytest.mark.parametrize("dtype", np.typecodes["All"])
+    def test_partition_out_of_range(self, dtype):
+        # Test out of range values in kth raise an error, gh-5469
+        d = np.arange(10).astype(dtype=dtype)
+        assert_raises(ValueError, d.partition, 10)
+        assert_raises(ValueError, d.partition, -11)
+
+    def test_argpartition_integer(self):
+        # Test non-integer values in kth raise an error/
+        d = np.arange(10)
+        assert_raises(TypeError, d.argpartition, 9.)
+        # Test also for generic type argpartition, which uses sorting
+        # and used to not bound check kth
+        d_obj = np.arange(10, dtype=object)
+        assert_raises(TypeError, d_obj.argpartition, 9.)
+
+    def test_partition_integer(self):
+        # Test out of range values in kth raise an error, gh-5469
+        d = np.arange(10)
+        assert_raises(TypeError, d.partition, 9.)
+        # Test also for generic type partition, which uses sorting
+        # and used to not bound check kth
+        d_obj = np.arange(10, dtype=object)
+        assert_raises(TypeError, d_obj.partition, 9.)
+
+    @pytest.mark.parametrize("kth_dtype", np.typecodes["AllInteger"])
+    def test_partition_empty_array(self, kth_dtype):
+        # check axis handling for multidimensional empty arrays
+        kth = np.array(0, dtype=kth_dtype)[()]
+        a = np.array([]).reshape((3, 2, 1, 0))
+        for axis in range(-a.ndim, a.ndim):
+            msg = f'test empty array partition with axis={axis}'
+            assert_equal(np.partition(a, kth, axis=axis), a, msg)
+        msg = 'test empty array partition with axis=None'
+        assert_equal(np.partition(a, kth, axis=None), a.ravel(), msg)
+
+    @pytest.mark.parametrize("kth_dtype", np.typecodes["AllInteger"])
+    def test_argpartition_empty_array(self, kth_dtype):
+        # check axis handling for multidimensional empty arrays
+        kth = np.array(0, dtype=kth_dtype)[()]
+        a = np.array([]).reshape((3, 2, 1, 0))
+        for axis in range(-a.ndim, a.ndim):
+            msg = f'test empty array argpartition with axis={axis}'
+            assert_equal(np.partition(a, kth, axis=axis),
+                         np.zeros_like(a, dtype=np.intp), msg)
+        msg = 'test empty array argpartition with axis=None'
+        assert_equal(np.partition(a, kth, axis=None),
+                     np.zeros_like(a.ravel(), dtype=np.intp), msg)
+
+    def test_partition(self):
+        d = np.arange(10)
+        assert_raises(TypeError, np.partition, d, 2, kind=1)
+        assert_raises(ValueError, np.partition, d, 2, kind="nonsense")
+        assert_raises(ValueError, np.argpartition, d, 2, kind="nonsense")
+        assert_raises(ValueError, d.partition, 2, axis=0, kind="nonsense")
+        assert_raises(ValueError, d.argpartition, 2, axis=0, kind="nonsense")
+        for k in ("introselect",):
+            d = np.array([])
+            assert_array_equal(np.partition(d, 0, kind=k), d)
+            assert_array_equal(np.argpartition(d, 0, kind=k), d)
+            d = np.ones(1)
+            assert_array_equal(np.partition(d, 0, kind=k)[0], d)
+            assert_array_equal(d[np.argpartition(d, 0, kind=k)],
+                               np.partition(d, 0, kind=k))
+
+            # kth not modified
+            kth = np.array([30, 15, 5])
+            okth = kth.copy()
+            np.partition(np.arange(40), kth)
+            assert_array_equal(kth, okth)
+
+            for r in ([2, 1], [1, 2], [1, 1]):
+                d = np.array(r)
+                tgt = np.sort(d)
+                assert_array_equal(np.partition(d, 0, kind=k)[0], tgt[0])
+                assert_array_equal(np.partition(d, 1, kind=k)[1], tgt[1])
+                self.assert_partitioned(np.partition(d, 0, kind=k), [0])
+                self.assert_partitioned(d[np.argpartition(d, 0, kind=k)], [0])
+                self.assert_partitioned(np.partition(d, 1, kind=k), [1])
+                self.assert_partitioned(d[np.argpartition(d, 1, kind=k)], [1])
+                for i in range(d.size):
+                    d[i:].partition(0, kind=k)
+                assert_array_equal(d, tgt)
+
+            for r in ([3, 2, 1], [1, 2, 3], [2, 1, 3], [2, 3, 1],
+                      [1, 1, 1], [1, 2, 2], [2, 2, 1], [1, 2, 1]):
+                d = np.array(r)
+                tgt = np.sort(d)
+                assert_array_equal(np.partition(d, 0, kind=k)[0], tgt[0])
+                assert_array_equal(np.partition(d, 1, kind=k)[1], tgt[1])
+                assert_array_equal(np.partition(d, 2, kind=k)[2], tgt[2])
+                self.assert_partitioned(np.partition(d, 0, kind=k), [0])
+                self.assert_partitioned(d[np.argpartition(d, 0, kind=k)], [0])
+                self.assert_partitioned(np.partition(d, 1, kind=k), [1])
+                self.assert_partitioned(d[np.argpartition(d, 1, kind=k)], [1])
+                self.assert_partitioned(np.partition(d, 2, kind=k), [2])
+                self.assert_partitioned(d[np.argpartition(d, 2, kind=k)], [2])
+                for i in range(d.size):
+                    d[i:].partition(0, kind=k)
+                assert_array_equal(d, tgt)
+
+            d = np.ones(50)
+            assert_array_equal(np.partition(d, 0, kind=k), d)
+            assert_array_equal(d[np.argpartition(d, 0, kind=k)],
+                               np.partition(d, 0, kind=k))
+
+            # sorted
+            d = np.arange(49)
+            assert_equal(np.partition(d, 5, kind=k)[5], 5)
+            assert_equal(np.partition(d, 15, kind=k)[15], 15)
+            self.assert_partitioned(np.partition(d, 5, kind=k), [5])
+            self.assert_partitioned(d[np.argpartition(d, 5, kind=k)], [5])
+            self.assert_partitioned(np.partition(d, 15, kind=k), [15])
+            self.assert_partitioned(d[np.argpartition(d, 15, kind=k)], [15])
+
+            # rsorted
+            d = np.arange(47)[::-1]
+            assert_equal(np.partition(d, 6, kind=k)[6], 6)
+            assert_equal(np.partition(d, 16, kind=k)[16], 16)
+            self.assert_partitioned(np.partition(d, 6, kind=k), [6])
+            self.assert_partitioned(d[np.argpartition(d, 6, kind=k)], [6])
+            self.assert_partitioned(np.partition(d, 16, kind=k), [16])
+            self.assert_partitioned(d[np.argpartition(d, 16, kind=k)], [16])
+
+            assert_array_equal(np.partition(d, -6, kind=k),
+                               np.partition(d, 41, kind=k))
+            assert_array_equal(np.partition(d, -16, kind=k),
+                               np.partition(d, 31, kind=k))
+            self.assert_partitioned(np.partition(d, 41, kind=k), [41])
+            self.assert_partitioned(d[np.argpartition(d, -6, kind=k)], [41])
+
+            # median of 3 killer, O(n^2) on pure median 3 pivot quickselect
+            # exercises the median of median of 5 code used to keep O(n)
+            d = np.arange(1000000)
+            x = np.roll(d, d.size // 2)
+            mid = x.size // 2 + 1
+            assert_equal(np.partition(x, mid)[mid], mid)
+            d = np.arange(1000001)
+            x = np.roll(d, d.size // 2 + 1)
+            mid = x.size // 2 + 1
+            assert_equal(np.partition(x, mid)[mid], mid)
+
+            # max
+            d = np.ones(10)
+            d[1] = 4
+            assert_equal(np.partition(d, (2, -1))[-1], 4)
+            assert_equal(np.partition(d, (2, -1))[2], 1)
+            assert_equal(d[np.argpartition(d, (2, -1))][-1], 4)
+            assert_equal(d[np.argpartition(d, (2, -1))][2], 1)
+            d[1] = np.nan
+            assert_(np.isnan(d[np.argpartition(d, (2, -1))][-1]))
+            assert_(np.isnan(np.partition(d, (2, -1))[-1]))
+
+            # equal elements
+            d = np.arange(47) % 7
+            tgt = np.sort(np.arange(47) % 7)
+            np.random.shuffle(d)
+            for i in range(d.size):
+                assert_equal(np.partition(d, i, kind=k)[i], tgt[i])
+            self.assert_partitioned(np.partition(d, 6, kind=k), [6])
+            self.assert_partitioned(d[np.argpartition(d, 6, kind=k)], [6])
+            self.assert_partitioned(np.partition(d, 16, kind=k), [16])
+            self.assert_partitioned(d[np.argpartition(d, 16, kind=k)], [16])
+            for i in range(d.size):
+                d[i:].partition(0, kind=k)
+            assert_array_equal(d, tgt)
+
+            d = np.array([0, 1, 2, 3, 4, 5, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+                          7, 7, 7, 7, 7, 9])
+            kth = [0, 3, 19, 20]
+            assert_equal(np.partition(d, kth, kind=k)[kth], (0, 3, 7, 7))
+            assert_equal(d[np.argpartition(d, kth, kind=k)][kth], (0, 3, 7, 7))
+
+            d = np.array([2, 1])
+            d.partition(0, kind=k)
+            assert_raises(ValueError, d.partition, 2)
+            assert_raises(AxisError, d.partition, 3, axis=1)
+            assert_raises(ValueError, np.partition, d, 2)
+            assert_raises(AxisError, np.partition, d, 2, axis=1)
+            assert_raises(ValueError, d.argpartition, 2)
+            assert_raises(AxisError, d.argpartition, 3, axis=1)
+            assert_raises(ValueError, np.argpartition, d, 2)
+            assert_raises(AxisError, np.argpartition, d, 2, axis=1)
+            d = np.arange(10).reshape((2, 5))
+            d.partition(1, axis=0, kind=k)
+            d.partition(4, axis=1, kind=k)
+            np.partition(d, 1, axis=0, kind=k)
+            np.partition(d, 4, axis=1, kind=k)
+            np.partition(d, 1, axis=None, kind=k)
+            np.partition(d, 9, axis=None, kind=k)
+            d.argpartition(1, axis=0, kind=k)
+            d.argpartition(4, axis=1, kind=k)
+            np.argpartition(d, 1, axis=0, kind=k)
+            np.argpartition(d, 4, axis=1, kind=k)
+            np.argpartition(d, 1, axis=None, kind=k)
+            np.argpartition(d, 9, axis=None, kind=k)
+            assert_raises(ValueError, d.partition, 2, axis=0)
+            assert_raises(ValueError, d.partition, 11, axis=1)
+            assert_raises(TypeError, d.partition, 2, axis=None)
+            assert_raises(ValueError, np.partition, d, 9, axis=1)
+            assert_raises(ValueError, np.partition, d, 11, axis=None)
+            assert_raises(ValueError, d.argpartition, 2, axis=0)
+            assert_raises(ValueError, d.argpartition, 11, axis=1)
+            assert_raises(ValueError, np.argpartition, d, 9, axis=1)
+            assert_raises(ValueError, np.argpartition, d, 11, axis=None)
+
+            td = [(dt, s) for dt in [np.int32, np.float32, np.complex64]
+                  for s in (9, 16)]
+            for dt, s in td:
+                aae = assert_array_equal
+                at = assert_
+
+                d = np.arange(s, dtype=dt)
+                np.random.shuffle(d)
+                d1 = np.tile(np.arange(s, dtype=dt), (4, 1))
+                map(np.random.shuffle, d1)
+                d0 = np.transpose(d1)
+                for i in range(d.size):
+                    p = np.partition(d, i, kind=k)
+                    assert_equal(p[i], i)
+                    # all before are smaller
+                    assert_array_less(p[:i], p[i])
+                    # all after are larger
+                    assert_array_less(p[i], p[i + 1:])
+                    self.assert_partitioned(p, [i])
+                    self.assert_partitioned(
+                            d[np.argpartition(d, i, kind=k)], [i])
+
+                    p = np.partition(d1, i, axis=1, kind=k)
+                    parg = d1[np.arange(d1.shape[0])[:, None],
+                            np.argpartition(d1, i, axis=1, kind=k)]
+                    aae(p[:, i], np.array([i] * d1.shape[0], dtype=dt))
+                    # array_less does not seem to work right
+                    at((p[:, :i].T <= p[:, i]).all(),
+                       msg="%d: %r <= %r" % (i, p[:, i], p[:, :i].T))
+                    at((p[:, i + 1:].T > p[:, i]).all(),
+                       msg="%d: %r < %r" % (i, p[:, i], p[:, i + 1:].T))
+                    for row in range(p.shape[0]):
+                        self.assert_partitioned(p[row], [i])
+                        self.assert_partitioned(parg[row], [i])
+
+                    p = np.partition(d0, i, axis=0, kind=k)
+                    parg = d0[np.argpartition(d0, i, axis=0, kind=k),
+                            np.arange(d0.shape[1])[None, :]]
+                    aae(p[i, :], np.array([i] * d1.shape[0], dtype=dt))
+                    # array_less does not seem to work right
+                    at((p[:i, :] <= p[i, :]).all(),
+                       msg="%d: %r <= %r" % (i, p[i, :], p[:i, :]))
+                    at((p[i + 1:, :] > p[i, :]).all(),
+                       msg="%d: %r < %r" % (i, p[i, :], p[:, i + 1:]))
+                    for col in range(p.shape[1]):
+                        self.assert_partitioned(p[:, col], [i])
+                        self.assert_partitioned(parg[:, col], [i])
+
+                    # check inplace
+                    dc = d.copy()
+                    dc.partition(i, kind=k)
+                    assert_equal(dc, np.partition(d, i, kind=k))
+                    dc = d0.copy()
+                    dc.partition(i, axis=0, kind=k)
+                    assert_equal(dc, np.partition(d0, i, axis=0, kind=k))
+                    dc = d1.copy()
+                    dc.partition(i, axis=1, kind=k)
+                    assert_equal(dc, np.partition(d1, i, axis=1, kind=k))
+
+    def assert_partitioned(self, d, kth):
+        prev = 0
+        for k in np.sort(kth):
+            assert_array_compare(operator.__le__, d[prev:k], d[k],
+                    err_msg='kth %d' % k)
+            assert_((d[k:] >= d[k]).all(),
+                    msg="kth %d, %r not greater equal %r" % (k, d[k:], d[k]))
+            prev = k + 1
+
+    def test_partition_iterative(self):
+        d = np.arange(17)
+        kth = (0, 1, 2, 429, 231)
+        assert_raises(ValueError, d.partition, kth)
+        assert_raises(ValueError, d.argpartition, kth)
+        d = np.arange(10).reshape((2, 5))
+        assert_raises(ValueError, d.partition, kth, axis=0)
+        assert_raises(ValueError, d.partition, kth, axis=1)
+        assert_raises(ValueError, np.partition, d, kth, axis=1)
+        assert_raises(ValueError, np.partition, d, kth, axis=None)
+
+        d = np.array([3, 4, 2, 1])
+        p = np.partition(d, (0, 3))
+        self.assert_partitioned(p, (0, 3))
+        self.assert_partitioned(d[np.argpartition(d, (0, 3))], (0, 3))
+
+        assert_array_equal(p, np.partition(d, (-3, -1)))
+        assert_array_equal(p, d[np.argpartition(d, (-3, -1))])
+
+        d = np.arange(17)
+        np.random.shuffle(d)
+        d.partition(range(d.size))
+        assert_array_equal(np.arange(17), d)
+        np.random.shuffle(d)
+        assert_array_equal(np.arange(17), d[d.argpartition(range(d.size))])
+
+        # test unsorted kth
+        d = np.arange(17)
+        np.random.shuffle(d)
+        keys = np.array([1, 3, 8, -2])
+        np.random.shuffle(d)
+        p = np.partition(d, keys)
+        self.assert_partitioned(p, keys)
+        p = d[np.argpartition(d, keys)]
+        self.assert_partitioned(p, keys)
+        np.random.shuffle(keys)
+        assert_array_equal(np.partition(d, keys), p)
+        assert_array_equal(d[np.argpartition(d, keys)], p)
+
+        # equal kth
+        d = np.arange(20)[::-1]
+        self.assert_partitioned(np.partition(d, [5] * 4), [5])
+        self.assert_partitioned(np.partition(d, [5] * 4 + [6, 13]),
+                                [5] * 4 + [6, 13])
+        self.assert_partitioned(d[np.argpartition(d, [5] * 4)], [5])
+        self.assert_partitioned(d[np.argpartition(d, [5] * 4 + [6, 13])],
+                                [5] * 4 + [6, 13])
+
+        d = np.arange(12)
+        np.random.shuffle(d)
+        d1 = np.tile(np.arange(12), (4, 1))
+        map(np.random.shuffle, d1)
+        d0 = np.transpose(d1)
+
+        kth = (1, 6, 7, -1)
+        p = np.partition(d1, kth, axis=1)
+        pa = d1[np.arange(d1.shape[0])[:, None],
+                d1.argpartition(kth, axis=1)]
+        assert_array_equal(p, pa)
+        for i in range(d1.shape[0]):
+            self.assert_partitioned(p[i, :], kth)
+        p = np.partition(d0, kth, axis=0)
+        pa = d0[np.argpartition(d0, kth, axis=0),
+                np.arange(d0.shape[1])[None, :]]
+        assert_array_equal(p, pa)
+        for i in range(d0.shape[1]):
+            self.assert_partitioned(p[:, i], kth)
+
+    def test_partition_cdtype(self):
+        d = np.array([('Galahad', 1.7, 38), ('Arthur', 1.8, 41),
+                   ('Lancelot', 1.9, 38)],
+                  dtype=[('name', '|S10'), ('height', '<f8'), ('age', '<i4')])
+
+        tgt = np.sort(d, order=['age', 'height'])
+        assert_array_equal(np.partition(d, range(d.size),
+                                        order=['age', 'height']),
+                           tgt)
+        assert_array_equal(d[np.argpartition(d, range(d.size),
+                                             order=['age', 'height'])],
+                           tgt)
+        for k in range(d.size):
+            assert_equal(np.partition(d, k, order=['age', 'height'])[k],
+                        tgt[k])
+            assert_equal(d[np.argpartition(d, k, order=['age', 'height'])][k],
+                         tgt[k])
+
+        d = np.array(['Galahad', 'Arthur', 'zebra', 'Lancelot'])
+        tgt = np.sort(d)
+        assert_array_equal(np.partition(d, range(d.size)), tgt)
+        for k in range(d.size):
+            assert_equal(np.partition(d, k)[k], tgt[k])
+            assert_equal(d[np.argpartition(d, k)][k], tgt[k])
+
+    def test_partition_unicode_kind(self):
+        d = np.arange(10)
+        k = b'\xc3\xa4'.decode("UTF8")
+        assert_raises(ValueError, d.partition, 2, kind=k)
+        assert_raises(ValueError, d.argpartition, 2, kind=k)
+
+    def test_partition_fuzz(self):
+        # a few rounds of random data testing
+        for j in range(10, 30):
+            for i in range(1, j - 2):
+                d = np.arange(j)
+                np.random.shuffle(d)
+                d = d % np.random.randint(2, 30)
+                idx = np.random.randint(d.size)
+                kth = [0, idx, i, i + 1]
+                tgt = np.sort(d)[kth]
+                assert_array_equal(np.partition(d, kth)[kth], tgt,
+                                   err_msg=f"data: {d!r}\n kth: {kth!r}")
+
+    @pytest.mark.parametrize("kth_dtype", np.typecodes["AllInteger"])
+    def test_argpartition_gh5524(self, kth_dtype):
+        #  A test for functionality of argpartition on lists.
+        kth = np.array(1, dtype=kth_dtype)[()]
+        d = [6, 7, 3, 2, 9, 0]
+        p = np.argpartition(d, kth)
+        self.assert_partitioned(np.array(d)[p], [1])
+
+    def test_flatten(self):
+        x0 = np.array([[1, 2, 3], [4, 5, 6]], np.int32)
+        x1 = np.array([[[1, 2], [3, 4]], [[5, 6], [7, 8]]], np.int32)
+        y0 = np.array([1, 2, 3, 4, 5, 6], np.int32)
+        y0f = np.array([1, 4, 2, 5, 3, 6], np.int32)
+        y1 = np.array([1, 2, 3, 4, 5, 6, 7, 8], np.int32)
+        y1f = np.array([1, 5, 3, 7, 2, 6, 4, 8], np.int32)
+        assert_equal(x0.flatten(), y0)
+        assert_equal(x0.flatten('F'), y0f)
+        assert_equal(x0.flatten('F'), x0.T.flatten())
+        assert_equal(x1.flatten(), y1)
+        assert_equal(x1.flatten('F'), y1f)
+        assert_equal(x1.flatten('F'), x1.T.flatten())
+
+    @pytest.mark.parametrize('func', (np.dot, np.matmul))
+    def test_arr_mult(self, func):
+        a = np.array([[1, 0], [0, 1]])
+        b = np.array([[0, 1], [1, 0]])
+        c = np.array([[9, 1], [1, -9]])
+        d = np.arange(24).reshape(4, 6)
+        ddt = np.array(
+            [[  55,  145,  235,  325],
+             [ 145,  451,  757, 1063],
+             [ 235,  757, 1279, 1801],
+             [ 325, 1063, 1801, 2539]]
+        )
+        dtd = np.array(
+            [[504, 540, 576, 612, 648, 684],
+             [540, 580, 620, 660, 700, 740],
+             [576, 620, 664, 708, 752, 796],
+             [612, 660, 708, 756, 804, 852],
+             [648, 700, 752, 804, 856, 908],
+             [684, 740, 796, 852, 908, 964]]
+        )
+
+        # gemm vs syrk optimizations
+        for et in [np.float32, np.float64, np.complex64, np.complex128]:
+            eaf = a.astype(et)
+            assert_equal(func(eaf, eaf), eaf)
+            assert_equal(func(eaf.T, eaf), eaf)
+            assert_equal(func(eaf, eaf.T), eaf)
+            assert_equal(func(eaf.T, eaf.T), eaf)
+            assert_equal(func(eaf.T.copy(), eaf), eaf)
+            assert_equal(func(eaf, eaf.T.copy()), eaf)
+            assert_equal(func(eaf.T.copy(), eaf.T.copy()), eaf)
+
+        # syrk validations
+        for et in [np.float32, np.float64, np.complex64, np.complex128]:
+            eaf = a.astype(et)
+            ebf = b.astype(et)
+            assert_equal(func(ebf, ebf), eaf)
+            assert_equal(func(ebf.T, ebf), eaf)
+            assert_equal(func(ebf, ebf.T), eaf)
+            assert_equal(func(ebf.T, ebf.T), eaf)
+
+        # syrk - different shape, stride, and view validations
+        for et in [np.float32, np.float64, np.complex64, np.complex128]:
+            edf = d.astype(et)
+            assert_equal(
+                func(edf[::-1, :], edf.T),
+                func(edf[::-1, :].copy(), edf.T.copy())
+            )
+            assert_equal(
+                func(edf[:, ::-1], edf.T),
+                func(edf[:, ::-1].copy(), edf.T.copy())
+            )
+            assert_equal(
+                func(edf, edf[::-1, :].T),
+                func(edf, edf[::-1, :].T.copy())
+            )
+            assert_equal(
+                func(edf, edf[:, ::-1].T),
+                func(edf, edf[:, ::-1].T.copy())
+            )
+            assert_equal(
+                func(edf[:edf.shape[0] // 2, :], edf[::2, :].T),
+                func(edf[:edf.shape[0] // 2, :].copy(), edf[::2, :].T.copy())
+            )
+            assert_equal(
+                func(edf[::2, :], edf[:edf.shape[0] // 2, :].T),
+                func(edf[::2, :].copy(), edf[:edf.shape[0] // 2, :].T.copy())
+            )
+
+        # syrk - different shape
+        for et in [np.float32, np.float64, np.complex64, np.complex128]:
+            edf = d.astype(et)
+            eddtf = ddt.astype(et)
+            edtdf = dtd.astype(et)
+            assert_equal(func(edf, edf.T), eddtf)
+            assert_equal(func(edf.T, edf), edtdf)
+
+    @pytest.mark.parametrize('func', (np.dot, np.matmul))
+    @pytest.mark.parametrize('dtype', 'ifdFD')
+    def test_no_dgemv(self, func, dtype):
+        # check vector arg for contiguous before gemv
+        # gh-12156
+        a = np.arange(8.0, dtype=dtype).reshape(2, 4)
+        b = np.broadcast_to(1., (4, 1))
+        ret1 = func(a, b)
+        ret2 = func(a, b.copy())
+        assert_equal(ret1, ret2)
+
+        ret1 = func(b.T, a.T)
+        ret2 = func(b.T.copy(), a.T)
+        assert_equal(ret1, ret2)
+
+        # check for unaligned data
+        dt = np.dtype(dtype)
+        a = np.zeros(8 * dt.itemsize // 2 + 1, dtype='int16')[1:].view(dtype)
+        a = a.reshape(2, 4)
+        b = a[0]
+        # make sure it is not aligned
+        assert_(a.__array_interface__['data'][0] % dt.itemsize != 0)
+        ret1 = func(a, b)
+        ret2 = func(a.copy(), b.copy())
+        assert_equal(ret1, ret2)
+
+        ret1 = func(b.T, a.T)
+        ret2 = func(b.T.copy(), a.T.copy())
+        assert_equal(ret1, ret2)
+
+    def test_dot(self):
+        a = np.array([[1, 0], [0, 1]])
+        b = np.array([[0, 1], [1, 0]])
+        c = np.array([[9, 1], [1, -9]])
+        # function versus methods
+        assert_equal(np.dot(a, b), a.dot(b))
+        assert_equal(np.dot(np.dot(a, b), c), a.dot(b).dot(c))
+
+        # test passing in an output array
+        c = np.zeros_like(a)
+        a.dot(b, c)
+        assert_equal(c, np.dot(a, b))
+
+        # test keyword args
+        c = np.zeros_like(a)
+        a.dot(b=b, out=c)
+        assert_equal(c, np.dot(a, b))
+
+    @pytest.mark.parametrize("dtype", [np.half, np.double, np.longdouble])
+    @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support")
+    def test_dot_errstate(self, dtype):
+        # Some dtypes use BLAS for 'dot' operation and
+        # not all BLAS support floating-point errors.
+        if not BLAS_SUPPORTS_FPE and dtype == np.double:
+            pytest.skip("BLAS does not support FPE")
+
+        a = np.array([1, 1], dtype=dtype)
+        b = np.array([-np.inf, np.inf], dtype=dtype)
+
+        with np.errstate(invalid='raise'):
+            # there are two paths, depending on the number of dimensions - test
+            # them both
+            with pytest.raises(FloatingPointError,
+                    match="invalid value encountered in dot"):
+                np.dot(a, b)
+
+            # test that fp exceptions are properly cleared
+            np.dot(a, a)
+
+            with pytest.raises(FloatingPointError,
+                    match="invalid value encountered in dot"):
+                np.dot(a[np.newaxis, np.newaxis, ...],
+                       b[np.newaxis, ..., np.newaxis])
+
+            np.dot(a[np.newaxis, np.newaxis, ...],
+                   a[np.newaxis, ..., np.newaxis])
+
+    def test_dot_type_mismatch(self):
+        c = 1.
+        A = np.array((1, 1), dtype='i,i')
+
+        assert_raises(TypeError, np.dot, c, A)
+        assert_raises(TypeError, np.dot, A, c)
+
+    def test_dot_out_mem_overlap(self):
+        np.random.seed(1)
+
+        # Test BLAS and non-BLAS code paths, including all dtypes
+        # that dot() supports
+        dtypes = [np.dtype(code) for code in np.typecodes['All']
+                  if code not in 'USVM']
+        for dtype in dtypes:
+            a = np.random.rand(3, 3).astype(dtype)
+
+            # Valid dot() output arrays must be aligned
+            b = _aligned_zeros((3, 3), dtype=dtype)
+            b[...] = np.random.rand(3, 3)
+
+            y = np.dot(a, b)
+            x = np.dot(a, b, out=b)
+            assert_equal(x, y, err_msg=repr(dtype))
+
+            # Check invalid output array
+            assert_raises(ValueError, np.dot, a, b, out=b[::2])
+            assert_raises(ValueError, np.dot, a, b, out=b.T)
+
+    def test_dot_matmul_out(self):
+        # gh-9641
+        class Sub(np.ndarray):
+            pass
+        a = np.ones((2, 2)).view(Sub)
+        b = np.ones((2, 2)).view(Sub)
+        out = np.ones((2, 2))
+
+        # make sure out can be any ndarray (not only subclass of inputs)
+        np.dot(a, b, out=out)
+        np.matmul(a, b, out=out)
+
+    def test_dot_matmul_inner_array_casting_fails(self):
+
+        class A:
+            def __array__(self, *args, **kwargs):
+                raise NotImplementedError
+
+        # Don't override the error from calling __array__()
+        assert_raises(NotImplementedError, np.dot, A(), A())
+        assert_raises(NotImplementedError, np.matmul, A(), A())
+        assert_raises(NotImplementedError, np.inner, A(), A())
+
+    def test_matmul_out(self):
+        # overlapping memory
+        a = np.arange(18).reshape(2, 3, 3)
+        b = np.matmul(a, a)
+        c = np.matmul(a, a, out=a)
+        assert_(c is a)
+        assert_equal(c, b)
+        a = np.arange(18).reshape(2, 3, 3)
+        c = np.matmul(a, a, out=a[::-1, ...])
+        assert_(c.base is a.base)
+        assert_equal(c, b)
+
+    def test_diagonal(self):
+        a = np.arange(12).reshape((3, 4))
+        assert_equal(a.diagonal(), [0, 5, 10])
+        assert_equal(a.diagonal(0), [0, 5, 10])
+        assert_equal(a.diagonal(1), [1, 6, 11])
+        assert_equal(a.diagonal(-1), [4, 9])
+        assert_raises(AxisError, a.diagonal, axis1=0, axis2=5)
+        assert_raises(AxisError, a.diagonal, axis1=5, axis2=0)
+        assert_raises(AxisError, a.diagonal, axis1=5, axis2=5)
+        assert_raises(ValueError, a.diagonal, axis1=1, axis2=1)
+
+        b = np.arange(8).reshape((2, 2, 2))
+        assert_equal(b.diagonal(), [[0, 6], [1, 7]])
+        assert_equal(b.diagonal(0), [[0, 6], [1, 7]])
+        assert_equal(b.diagonal(1), [[2], [3]])
+        assert_equal(b.diagonal(-1), [[4], [5]])
+        assert_raises(ValueError, b.diagonal, axis1=0, axis2=0)
+        assert_equal(b.diagonal(0, 1, 2), [[0, 3], [4, 7]])
+        assert_equal(b.diagonal(0, 0, 1), [[0, 6], [1, 7]])
+        assert_equal(b.diagonal(offset=1, axis1=0, axis2=2), [[1], [3]])
+        # Order of axis argument doesn't matter:
+        assert_equal(b.diagonal(0, 2, 1), [[0, 3], [4, 7]])
+
+    def test_diagonal_view_notwriteable(self):
+        a = np.eye(3).diagonal()
+        assert_(not a.flags.writeable)
+        assert_(not a.flags.owndata)
+
+        a = np.diagonal(np.eye(3))
+        assert_(not a.flags.writeable)
+        assert_(not a.flags.owndata)
+
+        a = np.diag(np.eye(3))
+        assert_(not a.flags.writeable)
+        assert_(not a.flags.owndata)
+
+    def test_diagonal_memleak(self):
+        # Regression test for a bug that crept in at one point
+        a = np.zeros((100, 100))
+        if HAS_REFCOUNT:
+            assert_(sys.getrefcount(a) < 50)
+        for i in range(100):
+            a.diagonal()
+        if HAS_REFCOUNT:
+            assert_(sys.getrefcount(a) < 50)
+
+    def test_size_zero_memleak(self):
+        # Regression test for issue 9615
+        # Exercises a special-case code path for dot products of length
+        # zero in cblasfuncs (making it is specific to floating dtypes).
+        a = np.array([], dtype=np.float64)
+        x = np.array(2.0)
+        for _ in range(100):
+            np.dot(a, a, out=x)
+        if HAS_REFCOUNT:
+            assert_(sys.getrefcount(x) < 50)
+
+    def test_trace(self):
+        a = np.arange(12).reshape((3, 4))
+        assert_equal(a.trace(), 15)
+        assert_equal(a.trace(0), 15)
+        assert_equal(a.trace(1), 18)
+        assert_equal(a.trace(-1), 13)
+
+        b = np.arange(8).reshape((2, 2, 2))
+        assert_equal(b.trace(), [6, 8])
+        assert_equal(b.trace(0), [6, 8])
+        assert_equal(b.trace(1), [2, 3])
+        assert_equal(b.trace(-1), [4, 5])
+        assert_equal(b.trace(0, 0, 1), [6, 8])
+        assert_equal(b.trace(0, 0, 2), [5, 9])
+        assert_equal(b.trace(0, 1, 2), [3, 11])
+        assert_equal(b.trace(offset=1, axis1=0, axis2=2), [1, 3])
+
+        out = np.array(1)
+        ret = a.trace(out=out)
+        assert ret is out
+
+    def test_trace_subclass(self):
+        # The class would need to overwrite trace to ensure single-element
+        # output also has the right subclass.
+        class MyArray(np.ndarray):
+            pass
+
+        b = np.arange(8).reshape((2, 2, 2)).view(MyArray)
+        t = b.trace()
+        assert_(isinstance(t, MyArray))
+
+    def test_put(self):
+        icodes = np.typecodes['AllInteger']
+        fcodes = np.typecodes['AllFloat']
+        for dt in icodes + fcodes + 'O':
+            tgt = np.array([0, 1, 0, 3, 0, 5], dtype=dt)
+
+            # test 1-d
+            a = np.zeros(6, dtype=dt)
+            a.put([1, 3, 5], [1, 3, 5])
+            assert_equal(a, tgt)
+
+            # test 2-d
+            a = np.zeros((2, 3), dtype=dt)
+            a.put([1, 3, 5], [1, 3, 5])
+            assert_equal(a, tgt.reshape(2, 3))
+
+        for dt in '?':
+            tgt = np.array([False, True, False, True, False, True], dtype=dt)
+
+            # test 1-d
+            a = np.zeros(6, dtype=dt)
+            a.put([1, 3, 5], [True] * 3)
+            assert_equal(a, tgt)
+
+            # test 2-d
+            a = np.zeros((2, 3), dtype=dt)
+            a.put([1, 3, 5], [True] * 3)
+            assert_equal(a, tgt.reshape(2, 3))
+
+        # check must be writeable
+        a = np.zeros(6)
+        a.flags.writeable = False
+        assert_raises(ValueError, a.put, [1, 3, 5], [1, 3, 5])
+
+        # when calling np.put, make sure a
+        # TypeError is raised if the object
+        # isn't an ndarray
+        bad_array = [1, 2, 3]
+        assert_raises(TypeError, np.put, bad_array, [0, 2], 5)
+
+        # when calling np.put, make sure an
+        # IndexError is raised if the
+        # array is empty
+        empty_array = np.asarray([])
+        with pytest.raises(IndexError,
+                            match="cannot replace elements of an empty array"):
+            np.put(empty_array, 1, 1, mode="wrap")
+        with pytest.raises(IndexError,
+                            match="cannot replace elements of an empty array"):
+            np.put(empty_array, 1, 1, mode="clip")
+
+    def test_ravel(self):
+        a = np.array([[0, 1], [2, 3]])
+        assert_equal(a.ravel(), [0, 1, 2, 3])
+        assert_(not a.ravel().flags.owndata)
+        assert_equal(a.ravel('F'), [0, 2, 1, 3])
+        assert_equal(a.ravel(order='C'), [0, 1, 2, 3])
+        assert_equal(a.ravel(order='F'), [0, 2, 1, 3])
+        assert_equal(a.ravel(order='A'), [0, 1, 2, 3])
+        assert_(not a.ravel(order='A').flags.owndata)
+        assert_equal(a.ravel(order='K'), [0, 1, 2, 3])
+        assert_(not a.ravel(order='K').flags.owndata)
+        assert_equal(a.ravel(), a.reshape(-1))
+
+        a = np.array([[0, 1], [2, 3]], order='F')
+        assert_equal(a.ravel(), [0, 1, 2, 3])
+        assert_equal(a.ravel(order='A'), [0, 2, 1, 3])
+        assert_equal(a.ravel(order='K'), [0, 2, 1, 3])
+        assert_(not a.ravel(order='A').flags.owndata)
+        assert_(not a.ravel(order='K').flags.owndata)
+        assert_equal(a.ravel(), a.reshape(-1))
+        assert_equal(a.ravel(order='A'), a.reshape(-1, order='A'))
+
+        a = np.array([[0, 1], [2, 3]])[::-1, :]
+        assert_equal(a.ravel(), [2, 3, 0, 1])
+        assert_equal(a.ravel(order='C'), [2, 3, 0, 1])
+        assert_equal(a.ravel(order='F'), [2, 0, 3, 1])
+        assert_equal(a.ravel(order='A'), [2, 3, 0, 1])
+        # 'K' doesn't reverse the axes of negative strides
+        assert_equal(a.ravel(order='K'), [2, 3, 0, 1])
+        assert_(a.ravel(order='K').flags.owndata)
+
+        # Test simple 1-d copy behaviour:
+        a = np.arange(10)[::2]
+        assert_(a.ravel('K').flags.owndata)
+        assert_(a.ravel('C').flags.owndata)
+        assert_(a.ravel('F').flags.owndata)
+
+        # Not contiguous and 1-sized axis with non matching stride
+        a = np.arange(2**3 * 2)[::2]
+        a = a.reshape(2, 1, 2, 2).swapaxes(-1, -2)
+        strides = list(a.strides)
+        strides[1] = 123
+        a = stride_tricks.as_strided(a, strides=strides)
+        assert_(a.ravel(order='K').flags.owndata)
+        assert_equal(a.ravel('K'), np.arange(0, 15, 2))
+
+        # contiguous and 1-sized axis with non matching stride works:
+        a = np.arange(2**3)
+        a = a.reshape(2, 1, 2, 2).swapaxes(-1, -2)
+        strides = list(a.strides)
+        strides[1] = 123
+        a = stride_tricks.as_strided(a, strides=strides)
+        assert_(np.may_share_memory(a.ravel(order='K'), a))
+        assert_equal(a.ravel(order='K'), np.arange(2**3))
+
+        # Test negative strides (not very interesting since non-contiguous):
+        a = np.arange(4)[::-1].reshape(2, 2)
+        assert_(a.ravel(order='C').flags.owndata)
+        assert_(a.ravel(order='K').flags.owndata)
+        assert_equal(a.ravel('C'), [3, 2, 1, 0])
+        assert_equal(a.ravel('K'), [3, 2, 1, 0])
+
+        # 1-element tidy strides test:
+        a = np.array([[1]])
+        a = stride_tricks.as_strided(a, strides=(123, 432))
+        if np.ones(1).strides == (8,):
+            assert_(np.may_share_memory(a.ravel('K'), a))
+            assert_equal(a.ravel('K').strides, (a.dtype.itemsize,))
+
+        for order in ('C', 'F', 'A', 'K'):
+            # 0-d corner case:
+            a = np.array(0)
+            assert_equal(a.ravel(order), [0])
+            assert_(np.may_share_memory(a.ravel(order), a))
+
+        # Test that certain non-inplace ravels work right (mostly) for 'K':
+        b = np.arange(2**4 * 2)[::2].reshape(2, 2, 2, 2)
+        a = b[..., ::2]
+        assert_equal(a.ravel('K'), [0, 4, 8, 12, 16, 20, 24, 28])
+        assert_equal(a.ravel('C'), [0, 4, 8, 12, 16, 20, 24, 28])
+        assert_equal(a.ravel('A'), [0, 4, 8, 12, 16, 20, 24, 28])
+        assert_equal(a.ravel('F'), [0, 16, 8, 24, 4, 20, 12, 28])
+
+        a = b[::2, ...]
+        assert_equal(a.ravel('K'), [0, 2, 4, 6, 8, 10, 12, 14])
+        assert_equal(a.ravel('C'), [0, 2, 4, 6, 8, 10, 12, 14])
+        assert_equal(a.ravel('A'), [0, 2, 4, 6, 8, 10, 12, 14])
+        assert_equal(a.ravel('F'), [0, 8, 4, 12, 2, 10, 6, 14])
+
+    def test_ravel_subclass(self):
+        class ArraySubclass(np.ndarray):
+            pass
+
+        a = np.arange(10).view(ArraySubclass)
+        assert_(isinstance(a.ravel('C'), ArraySubclass))
+        assert_(isinstance(a.ravel('F'), ArraySubclass))
+        assert_(isinstance(a.ravel('A'), ArraySubclass))
+        assert_(isinstance(a.ravel('K'), ArraySubclass))
+
+        a = np.arange(10)[::2].view(ArraySubclass)
+        assert_(isinstance(a.ravel('C'), ArraySubclass))
+        assert_(isinstance(a.ravel('F'), ArraySubclass))
+        assert_(isinstance(a.ravel('A'), ArraySubclass))
+        assert_(isinstance(a.ravel('K'), ArraySubclass))
+
+    @pytest.mark.parametrize("shape", [(3, 224, 224), (8, 512, 512)])
+    def test_tobytes_no_copy_fastpath(self, shape):
+        # Test correctness of non-contiguous paths for `tobytes`
+        rng = np.random.default_rng(0)
+        arr = rng.standard_normal(shape, dtype=np.float32)
+        noncontig = arr.transpose(1, 2, 0)
+
+        # correctness
+        expected = np.ascontiguousarray(noncontig).tobytes()
+        got = noncontig.tobytes()
+        assert got == expected
+
+    def test_swapaxes(self):
+        a = np.arange(1 * 2 * 3 * 4).reshape(1, 2, 3, 4).copy()
+        idx = np.indices(a.shape)
+        assert_(a.flags['OWNDATA'])
+        b = a.copy()
+        # check exceptions
+        assert_raises(AxisError, a.swapaxes, -5, 0)
+        assert_raises(AxisError, a.swapaxes, 4, 0)
+        assert_raises(AxisError, a.swapaxes, 0, -5)
+        assert_raises(AxisError, a.swapaxes, 0, 4)
+
+        for i in range(-4, 4):
+            for j in range(-4, 4):
+                for k, src in enumerate((a, b)):
+                    c = src.swapaxes(i, j)
+                    # check shape
+                    shape = list(src.shape)
+                    shape[i] = src.shape[j]
+                    shape[j] = src.shape[i]
+                    assert_equal(c.shape, shape, str((i, j, k)))
+                    # check array contents
+                    i0, i1, i2, i3 = [dim - 1 for dim in c.shape]
+                    j0, j1, j2, j3 = [dim - 1 for dim in src.shape]
+                    assert_equal(src[idx[j0], idx[j1], idx[j2], idx[j3]],
+                                 c[idx[i0], idx[i1], idx[i2], idx[i3]],
+                                 str((i, j, k)))
+                    # check a view is always returned, gh-5260
+                    assert_(not c.flags['OWNDATA'], str((i, j, k)))
+                    # check on non-contiguous input array
+                    if k == 1:
+                        b = c
+
+    def test_conjugate(self):
+        a = np.array([1 - 1j, 1 + 1j, 23 + 23.0j])
+        ac = a.conj()
+        assert_equal(a.real, ac.real)
+        assert_equal(a.imag, -ac.imag)
+        assert_equal(ac, a.conjugate())
+        assert_equal(ac, np.conjugate(a))
+
+        a = np.array([1 - 1j, 1 + 1j, 23 + 23.0j], 'F')
+        ac = a.conj()
+        assert_equal(a.real, ac.real)
+        assert_equal(a.imag, -ac.imag)
+        assert_equal(ac, a.conjugate())
+        assert_equal(ac, np.conjugate(a))
+
+        a = np.array([1, 2, 3])
+        ac = a.conj()
+        assert_equal(a, ac)
+        assert_equal(ac, a.conjugate())
+        assert_equal(ac, np.conjugate(a))
+
+        a = np.array([1.0, 2.0, 3.0])
+        ac = a.conj()
+        assert_equal(a, ac)
+        assert_equal(ac, a.conjugate())
+        assert_equal(ac, np.conjugate(a))
+
+        a = np.array([1 - 1j, 1 + 1j, 1, 2.0], object)
+        ac = a.conj()
+        assert_equal(ac, [k.conjugate() for k in a])
+        assert_equal(ac, a.conjugate())
+        assert_equal(ac, np.conjugate(a))
+
+        a = np.array([1 - 1j, 1, 2.0, 'f'], object)
+        assert_raises(TypeError, a.conj)
+        assert_raises(TypeError, a.conjugate)
+
+    def test_conjugate_out(self):
+        # Minimal test for the out argument being passed on correctly
+        # NOTE: The ability to pass `out` is currently undocumented!
+        a = np.array([1 - 1j, 1 + 1j, 23 + 23.0j])
+        out = np.empty_like(a)
+        res = a.conjugate(out)
+        assert res is out
+        assert_array_equal(out, a.conjugate())
+
+    def test_conjugate_scalar(self):
+        for v in 5, 5j:
+            a = np.array(v)
+            assert a.conjugate() == v.conjugate()
+        for a in (np.array('s'), np.array('2016', 'M'),
+                np.array((1, 2), [('a', int), ('b', int)])):
+            with pytest.raises(TypeError):
+                a.conjugate()
+
+    def test__complex__(self):
+        dtypes = ['i1', 'i2', 'i4', 'i8',
+                  'u1', 'u2', 'u4', 'u8',
+                  'f', 'd', 'g', 'F', 'D', 'G',
+                  '?', 'O']
+        for dt in dtypes:
+            a = np.array(7, dtype=dt)
+            msg = f'dtype: {dt}'
+            ap = complex(a)
+            assert_equal(ap, a, msg)
+
+    def test__complex__should_not_work(self):
+        dtypes = ['i1', 'i2', 'i4', 'i8',
+                  'u1', 'u2', 'u4', 'u8',
+                  'f', 'd', 'g', 'F', 'D', 'G',
+                  '?', 'O']
+        for dt in dtypes:
+            a = np.array([1, 2, 3], dtype=dt)
+            b = np.array([7], dtype=dt)
+            c = np.array([[[[[7]]]]], dtype=dt)
+            assert_raises(TypeError, complex, a)
+            assert_raises(TypeError, complex, b)
+            assert_raises(TypeError, complex, c)
+
+        dt = np.dtype([('a', 'f8'), ('b', 'i1')])
+        b = np.array((1.0, 3), dtype=dt)
+        assert_raises(TypeError, complex, b)
+
+        c = np.array([(1.0, 3), (2e-3, 7)], dtype=dt)
+        assert_raises(TypeError, complex, c)
+
+        d = np.array('1+1j')
+        assert_raises(TypeError, complex, d)
+
+        e = np.array(['1+1j'], 'U')
+        assert_raises(TypeError, complex, e)
+
+class TestCequenceMethods:
+    def test_array_contains(self):
+        assert_(4.0 in np.arange(16.).reshape(4, 4))
+        assert_(20.0 not in np.arange(16.).reshape(4, 4))
+
+class TestBinop:
+    def test_inplace(self):
+        # test refcount 1 inplace conversion
+        assert_array_almost_equal(np.array([0.5]) * np.array([1.0, 2.0]),
+                                  [0.5, 1.0])
+
+        d = np.array([0.5, 0.5])[::2]
+        assert_array_almost_equal(d * (d * np.array([1.0, 2.0])),
+                                  [0.25, 0.5])
+
+        a = np.array([0.5])
+        b = np.array([0.5])
+        c = a + b
+        c = a - b
+        c = a * b
+        c = a / b
+        assert_equal(a, b)
+        assert_almost_equal(c, 1.)
+
+        c = a + b * 2. / b * a - a / b
+        assert_equal(a, b)
+        assert_equal(c, 0.5)
+
+        # true divide
+        a = np.array([5])
+        b = np.array([3])
+        c = (a * a) / b
+
+        assert_almost_equal(c, 25 / 3)
+        assert_equal(a, 5)
+        assert_equal(b, 3)
+
+    # ndarray.__rop__ always calls ufunc
+    # ndarray.__iop__ always calls ufunc
+    # ndarray.__op__, __rop__:
+    #   - defer if other has __array_ufunc__ and it is None
+    #           or other is not a subclass and has higher array priority
+    #   - else, call ufunc
+    @pytest.mark.xfail(IS_PYPY, reason="Bug in pypy3.{9, 10}-v7.3.13, #24862")
+    def test_ufunc_binop_interaction(self):
+        # Python method name (without underscores)
+        #   -> (numpy ufunc, has_in_place_version, preferred_dtype)
+        ops = {
+            'add':      (np.add, True, float),
+            'sub':      (np.subtract, True, float),
+            'mul':      (np.multiply, True, float),
+            'truediv':  (np.true_divide, True, float),
+            'floordiv': (np.floor_divide, True, float),
+            'mod':      (np.remainder, True, float),
+            'divmod':   (np.divmod, False, float),
+            'pow':      (np.power, True, int),
+            'lshift':   (np.left_shift, True, int),
+            'rshift':   (np.right_shift, True, int),
+            'and':      (np.bitwise_and, True, int),
+            'xor':      (np.bitwise_xor, True, int),
+            'or':       (np.bitwise_or, True, int),
+            'matmul':   (np.matmul, True, float),
+            # 'ge':       (np.less_equal, False),
+            # 'gt':       (np.less, False),
+            # 'le':       (np.greater_equal, False),
+            # 'lt':       (np.greater, False),
+            # 'eq':       (np.equal, False),
+            # 'ne':       (np.not_equal, False),
+        }
+
+        class Coerced(Exception):
+            pass
+
+        def array_impl(self):
+            raise Coerced
+
+        def op_impl(self, other):
+            return "forward"
+
+        def rop_impl(self, other):
+            return "reverse"
+
+        def iop_impl(self, other):
+            return "in-place"
+
+        def array_ufunc_impl(self, ufunc, method, *args, **kwargs):
+            return ("__array_ufunc__", ufunc, method, args, kwargs)
+
+        # Create an object with the given base, in the given module, with a
+        # bunch of placeholder __op__ methods, and optionally a
+        # __array_ufunc__ and __array_priority__.
+        def make_obj(base, array_priority=False, array_ufunc=False,
+                     alleged_module="__main__"):
+            class_namespace = {"__array__": array_impl}
+            if array_priority is not False:
+                class_namespace["__array_priority__"] = array_priority
+            for op in ops:
+                class_namespace[f"__{op}__"] = op_impl
+                class_namespace[f"__r{op}__"] = rop_impl
+                class_namespace[f"__i{op}__"] = iop_impl
+            if array_ufunc is not False:
+                class_namespace["__array_ufunc__"] = array_ufunc
+            eval_namespace = {"base": base,
+                              "class_namespace": class_namespace,
+                              "__name__": alleged_module,
+                              }
+            MyType = eval("type('MyType', (base,), class_namespace)",
+                          eval_namespace)
+            if issubclass(MyType, np.ndarray):
+                # Use this range to avoid special case weirdnesses around
+                # divide-by-0, pow(x, 2), overflow due to pow(big, big), etc.
+                return np.arange(3, 7).reshape(2, 2).view(MyType)
+            else:
+                return MyType()
+
+        def check(obj, binop_override_expected, ufunc_override_expected,
+                  inplace_override_expected, check_scalar=True):
+            for op, (ufunc, has_inplace, dtype) in ops.items():
+                err_msg = ('op: %s, ufunc: %s, has_inplace: %s, dtype: %s'
+                           % (op, ufunc, has_inplace, dtype))
+                check_objs = [np.arange(3, 7, dtype=dtype).reshape(2, 2)]
+                if check_scalar:
+                    check_objs.append(check_objs[0][0])
+                for arr in check_objs:
+                    arr_method = getattr(arr, f"__{op}__")
+
+                    def first_out_arg(result):
+                        if op == "divmod":
+                            assert_(isinstance(result, tuple))
+                            return result[0]
+                        else:
+                            return result
+
+                    # arr __op__ obj
+                    if binop_override_expected:
+                        assert_equal(arr_method(obj), NotImplemented, err_msg)
+                    elif ufunc_override_expected:
+                        assert_equal(arr_method(obj)[0], "__array_ufunc__",
+                                     err_msg)
+                    elif (isinstance(obj, np.ndarray) and
+                        (type(obj).__array_ufunc__ is
+                         np.ndarray.__array_ufunc__)):
+                        # __array__ gets ignored
+                        res = first_out_arg(arr_method(obj))
+                        assert_(res.__class__ is obj.__class__, err_msg)
+                    else:
+                        assert_raises((TypeError, Coerced),
+                                      arr_method, obj, err_msg=err_msg)
+                    # obj __op__ arr
+                    arr_rmethod = getattr(arr, f"__r{op}__")
+                    if ufunc_override_expected:
+                        res = arr_rmethod(obj)
+                        assert_equal(res[0], "__array_ufunc__",
+                                     err_msg=err_msg)
+                        assert_equal(res[1], ufunc, err_msg=err_msg)
+                    elif (isinstance(obj, np.ndarray) and
+                            (type(obj).__array_ufunc__ is
+                             np.ndarray.__array_ufunc__)):
+                        # __array__ gets ignored
+                        res = first_out_arg(arr_rmethod(obj))
+                        assert_(res.__class__ is obj.__class__, err_msg)
+                    else:
+                        # __array_ufunc__ = "asdf" creates a TypeError
+                        assert_raises((TypeError, Coerced),
+                                      arr_rmethod, obj, err_msg=err_msg)
+
+                    # arr __iop__ obj
+                    # array scalars don't have in-place operators
+                    if has_inplace and isinstance(arr, np.ndarray):
+                        arr_imethod = getattr(arr, f"__i{op}__")
+                        if inplace_override_expected:
+                            assert_equal(arr_method(obj), NotImplemented,
+                                         err_msg=err_msg)
+                        elif ufunc_override_expected:
+                            res = arr_imethod(obj)
+                            assert_equal(res[0], "__array_ufunc__", err_msg)
+                            assert_equal(res[1], ufunc, err_msg)
+                            assert_(type(res[-1]["out"]) is tuple, err_msg)
+                            assert_(res[-1]["out"][0] is arr, err_msg)
+                        elif (isinstance(obj, np.ndarray) and
+                                (type(obj).__array_ufunc__ is
+                                np.ndarray.__array_ufunc__)):
+                            # __array__ gets ignored
+                            assert_(arr_imethod(obj) is arr, err_msg)
+                        else:
+                            assert_raises((TypeError, Coerced),
+                                          arr_imethod, obj,
+                                          err_msg=err_msg)
+
+                    op_fn = getattr(operator, op, None)
+                    if op_fn is None:
+                        op_fn = getattr(operator, op + "_", None)
+                    if op_fn is None:
+                        op_fn = getattr(builtins, op)
+                    assert_equal(op_fn(obj, arr), "forward", err_msg)
+                    if not isinstance(obj, np.ndarray):
+                        if binop_override_expected:
+                            assert_equal(op_fn(arr, obj), "reverse", err_msg)
+                        elif ufunc_override_expected:
+                            assert_equal(op_fn(arr, obj)[0], "__array_ufunc__",
+                                         err_msg)
+                    if ufunc_override_expected:
+                        assert_equal(ufunc(obj, arr)[0], "__array_ufunc__",
+                                     err_msg)
+
+        # No array priority, no array_ufunc -> nothing called
+        check(make_obj(object), False, False, False)
+        # Negative array priority, no array_ufunc -> nothing called
+        # (has to be very negative, because scalar priority is -1000000.0)
+        check(make_obj(object, array_priority=-2**30), False, False, False)
+        # Positive array priority, no array_ufunc -> binops and iops only
+        check(make_obj(object, array_priority=1), True, False, True)
+        # ndarray ignores array_priority for ndarray subclasses
+        check(make_obj(np.ndarray, array_priority=1), False, False, False,
+              check_scalar=False)
+        # Positive array_priority and array_ufunc -> array_ufunc only
+        check(make_obj(object, array_priority=1,
+                       array_ufunc=array_ufunc_impl), False, True, False)
+        check(make_obj(np.ndarray, array_priority=1,
+                       array_ufunc=array_ufunc_impl), False, True, False)
+        # array_ufunc set to None -> defer binops only
+        check(make_obj(object, array_ufunc=None), True, False, False)
+        check(make_obj(np.ndarray, array_ufunc=None), True, False, False,
+              check_scalar=False)
+
+    @pytest.mark.parametrize("priority", [None, "runtime error"])
+    def test_ufunc_binop_bad_array_priority(self, priority):
+        # Mainly checks that this does not crash.  The second array has a lower
+        # priority than -1 ("error value").  If the __radd__ actually exists,
+        # bad things can happen (I think via the scalar paths).
+        # In principle both of these can probably just be errors in the future.
+        class BadPriority:
+            @property
+            def __array_priority__(self):
+                if priority == "runtime error":
+                    raise RuntimeError("RuntimeError in __array_priority__!")
+                return priority
+
+            def __radd__(self, other):
+                return "result"
+
+        class LowPriority(np.ndarray):
+            __array_priority__ = -1000
+
+        # Priority failure uses the same as scalars (smaller -1000).  So the
+        # LowPriority wins with 'result' for each element (inner operation).
+        res = np.arange(3).view(LowPriority) + BadPriority()
+        assert res.shape == (3,)
+        assert res[0] == 'result'
+
+    @pytest.mark.parametrize("scalar", [
+            np.longdouble(1), np.timedelta64(120, 'm')])
+    @pytest.mark.parametrize("op", [operator.add, operator.xor])
+    def test_scalar_binop_guarantees_ufunc(self, scalar, op):
+        # Test that __array_ufunc__ will always cause ufunc use even when
+        # we have to protect some other calls from recursing (see gh-26904).
+        class SomeClass:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kw):
+                return "result"
+
+        assert SomeClass() + scalar == "result"
+        assert scalar + SomeClass() == "result"
+
+    def test_ufunc_override_normalize_signature(self):
+        # gh-5674
+        class SomeClass:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kw):
+                return kw
+
+        a = SomeClass()
+        kw = np.add(a, [1])
+        assert_('sig' not in kw and 'signature' not in kw)
+        kw = np.add(a, [1], sig='ii->i')
+        assert_('sig' not in kw and 'signature' in kw)
+        assert_equal(kw['signature'], 'ii->i')
+        kw = np.add(a, [1], signature='ii->i')
+        assert_('sig' not in kw and 'signature' in kw)
+        assert_equal(kw['signature'], 'ii->i')
+
+    def test_array_ufunc_index(self):
+        # Check that index is set appropriately, also if only an output
+        # is passed on (latter is another regression tests for github bug 4753)
+        # This also checks implicitly that 'out' is always a tuple.
+        class CheckIndex:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kw):
+                for i, a in enumerate(inputs):
+                    if a is self:
+                        return i
+                # calls below mean we must be in an output.
+                for j, a in enumerate(kw['out']):
+                    if a is self:
+                        return (j,)
+
+        a = CheckIndex()
+        dummy = np.arange(2.)
+        # 1 input, 1 output
+        assert_equal(np.sin(a), 0)
+        assert_equal(np.sin(dummy, a), (0,))
+        assert_equal(np.sin(dummy, out=a), (0,))
+        assert_equal(np.sin(dummy, out=(a,)), (0,))
+        assert_equal(np.sin(a, a), 0)
+        assert_equal(np.sin(a, out=a), 0)
+        assert_equal(np.sin(a, out=(a,)), 0)
+        # 1 input, 2 outputs
+        assert_equal(np.modf(dummy, a), (0,))
+        assert_equal(np.modf(dummy, None, a), (1,))
+        assert_equal(np.modf(dummy, dummy, a), (1,))
+        assert_equal(np.modf(dummy, out=(a, None)), (0,))
+        assert_equal(np.modf(dummy, out=(a, dummy)), (0,))
+        assert_equal(np.modf(dummy, out=(None, a)), (1,))
+        assert_equal(np.modf(dummy, out=(dummy, a)), (1,))
+        assert_equal(np.modf(a, out=(dummy, a)), 0)
+        with assert_raises(TypeError):
+            # Out argument must be tuple, since there are multiple outputs
+            np.modf(dummy, out=a)
+
+        assert_raises(ValueError, np.modf, dummy, out=(a,))
+
+        # 2 inputs, 1 output
+        assert_equal(np.add(a, dummy), 0)
+        assert_equal(np.add(dummy, a), 1)
+        assert_equal(np.add(dummy, dummy, a), (0,))
+        assert_equal(np.add(dummy, a, a), 1)
+        assert_equal(np.add(dummy, dummy, out=a), (0,))
+        assert_equal(np.add(dummy, dummy, out=(a,)), (0,))
+        assert_equal(np.add(a, dummy, out=a), 0)
+
+    def test_out_override(self):
+        # regression test for github bug 4753
+        class OutClass(np.ndarray):
+            def __array_ufunc__(self, ufunc, method, *inputs, **kw):
+                if 'out' in kw:
+                    tmp_kw = kw.copy()
+                    tmp_kw.pop('out')
+                    func = getattr(ufunc, method)
+                    kw['out'][0][...] = func(*inputs, **tmp_kw)
+
+        A = np.array([0]).view(OutClass)
+        B = np.array([5])
+        C = np.array([6])
+        np.multiply(C, B, A)
+        assert_equal(A[0], 30)
+        assert_(isinstance(A, OutClass))
+        A[0] = 0
+        np.multiply(C, B, out=A)
+        assert_equal(A[0], 30)
+        assert_(isinstance(A, OutClass))
+
+    def test_pow_array_object_dtype(self):
+        # test pow on arrays of object dtype
+        class SomeClass:
+            def __init__(self, num=None):
+                self.num = num
+
+            # want to ensure a fast pow path is not taken
+            def __mul__(self, other):
+                raise AssertionError('__mul__ should not be called')
+
+            def __truediv__(self, other):
+                raise AssertionError('__truediv__ should not be called')
+
+            def __pow__(self, exp):
+                return SomeClass(num=self.num ** exp)
+
+            def __eq__(self, other):
+                if isinstance(other, SomeClass):
+                    return self.num == other.num
+
+            __rpow__ = __pow__
+
+        def pow_for(exp, arr):
+            return np.array([x ** exp for x in arr])
+
+        obj_arr = np.array([SomeClass(1), SomeClass(2), SomeClass(3)])
+
+        assert_equal(obj_arr ** 0.5, pow_for(0.5, obj_arr))
+        assert_equal(obj_arr ** 0, pow_for(0, obj_arr))
+        assert_equal(obj_arr ** 1, pow_for(1, obj_arr))
+        assert_equal(obj_arr ** -1, pow_for(-1, obj_arr))
+        assert_equal(obj_arr ** 2, pow_for(2, obj_arr))
+
+    def test_pow_calls_square_structured_dtype(self):
+        # gh-29388
+        dt = np.dtype([('a', 'i4'), ('b', 'i4')])
+        a = np.array([(1, 2), (3, 4)], dtype=dt)
+        with pytest.raises(TypeError, match="ufunc 'square' not supported"):
+            a ** 2
+
+    def test_pos_array_ufunc_override(self):
+        class A(np.ndarray):
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                return getattr(ufunc, method)(*[i.view(np.ndarray) for
+                                                i in inputs], **kwargs)
+        tst = np.array('foo').view(A)
+        with assert_raises(TypeError):
+            +tst
+
+
+class TestTemporaryElide:
+    # elision is only triggered on relatively large arrays
+
+    def test_extension_incref_elide(self):
+        # test extension (e.g. cython) calling PyNumber_* slots without
+        # increasing the reference counts
+        #
+        # def incref_elide(a):
+        #    d = input.copy() # refcount 1
+        #    return d, d + d # PyNumber_Add without increasing refcount
+        from numpy._core._multiarray_tests import incref_elide
+        d = np.ones(100000)
+        orig, res = incref_elide(d)
+        d + d
+        # the return original should not be changed to an inplace operation
+        assert_array_equal(orig, d)
+        assert_array_equal(res, d + d)
+
+    def test_extension_incref_elide_stack(self):
+        # scanning if the refcount == 1 object is on the python stack to check
+        # that we are called directly from python is flawed as object may still
+        # be above the stack pointer and we have no access to the top of it
+        #
+        # def incref_elide_l(d):
+        #    return l[4] + l[4] # PyNumber_Add without increasing refcount
+        from numpy._core._multiarray_tests import incref_elide_l
+        # padding with 1 makes sure the object on the stack is not overwritten
+        l = [1, 1, 1, 1, np.ones(100000)]
+        res = incref_elide_l(l)
+        # the return original should not be changed to an inplace operation
+        assert_array_equal(l[4], np.ones(100000))
+        assert_array_equal(res, l[4] + l[4])
+
+    def test_temporary_with_cast(self):
+        # check that we don't elide into a temporary which would need casting
+        d = np.ones(200000, dtype=np.int64)
+        r = ((d + d) + np.array(2**222, dtype='O'))
+        assert_equal(r.dtype, np.dtype('O'))
+
+        r = ((d + d) / 2)
+        assert_equal(r.dtype, np.dtype('f8'))
+
+        r = np.true_divide((d + d), 2)
+        assert_equal(r.dtype, np.dtype('f8'))
+
+        r = ((d + d) / 2.)
+        assert_equal(r.dtype, np.dtype('f8'))
+
+        r = ((d + d) // 2)
+        assert_equal(r.dtype, np.dtype(np.int64))
+
+        # commutative elision into the astype result
+        f = np.ones(100000, dtype=np.float32)
+        assert_equal(((f + f) + f.astype(np.float64)).dtype, np.dtype('f8'))
+
+        # no elision into lower type
+        d = f.astype(np.float64)
+        assert_equal(((f + f) + d).dtype, d.dtype)
+        l = np.ones(100000, dtype=np.longdouble)
+        assert_equal(((d + d) + l).dtype, l.dtype)
+
+        # test unary abs with different output dtype
+        for dt in (np.complex64, np.complex128, np.clongdouble):
+            c = np.ones(100000, dtype=dt)
+            r = abs(c * 2.0)
+            assert_equal(r.dtype, np.dtype('f%d' % (c.itemsize // 2)))
+
+    def test_elide_broadcast(self):
+        # test no elision on broadcast to higher dimension
+        # only triggers elision code path in debug mode as triggering it in
+        # normal mode needs 256kb large matching dimension, so a lot of memory
+        d = np.ones((2000, 1), dtype=int)
+        b = np.ones((2000), dtype=bool)
+        r = (1 - d) + b
+        assert_equal(r, 1)
+        assert_equal(r.shape, (2000, 2000))
+
+    def test_elide_scalar(self):
+        # check inplace op does not create ndarray from scalars
+        a = np.bool()
+        assert_(type(~(a & a)) is np.bool)
+
+    def test_elide_scalar_readonly(self):
+        # The imaginary part of a real array is readonly. This needs to go
+        # through fast_scalar_power which is only called for powers of
+        # +1, -1, 0, 0.5, and 2, so use 2. Also need valid refcount for
+        # elision which can be gotten for the imaginary part of a real
+        # array. Should not error.
+        a = np.empty(100000, dtype=np.float64)
+        a.imag ** 2
+
+    def test_elide_readonly(self):
+        # don't try to elide readonly temporaries
+        r = np.asarray(np.broadcast_to(np.zeros(1), 100000).flat) * 0.0
+        assert_equal(r, 0)
+
+    def test_elide_updateifcopy(self):
+        a = np.ones(2**20)[::2]
+        b = a.flat.__array__() + 1
+        del b
+        assert_equal(a, 1)
+
+
+class TestCAPI:
+    def test_IsPythonScalar(self):
+        from numpy._core._multiarray_tests import IsPythonScalar
+        assert_(IsPythonScalar(b'foobar'))
+        assert_(IsPythonScalar(1))
+        assert_(IsPythonScalar(2**80))
+        assert_(IsPythonScalar(2.))
+        assert_(IsPythonScalar("a"))
+
+    @pytest.mark.parametrize("converter",
+             [_multiarray_tests.run_scalar_intp_converter,
+              _multiarray_tests.run_scalar_intp_from_sequence])
+    def test_intp_sequence_converters(self, converter):
+        # Test simple values (-1 is special for error return paths)
+        assert converter(10) == (10,)
+        assert converter(-1) == (-1,)
+        # A 0-D array looks a bit like a sequence but must take the integer
+        # path:
+        assert converter(np.array(123)) == (123,)
+        # Test simple sequences (intp_from_sequence only supports length 1):
+        assert converter((10,)) == (10,)
+        assert converter(np.array([11])) == (11,)
+
+    @pytest.mark.parametrize("converter",
+             [_multiarray_tests.run_scalar_intp_converter,
+              _multiarray_tests.run_scalar_intp_from_sequence])
+    @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+            reason="PyPy bug in error formatting")
+    def test_intp_sequence_converters_errors(self, converter):
+        with pytest.raises(TypeError,
+                match="expected a sequence of integers or a single integer, "):
+            converter(object())
+        with pytest.raises(TypeError,
+                match="expected a sequence of integers or a single integer, "
+                      "got '32.0'"):
+            converter(32.)
+        with pytest.raises(TypeError,
+                match="'float' object cannot be interpreted as an integer"):
+            converter([32.])
+        with pytest.raises(ValueError,
+                match="Maximum allowed dimension"):
+            # These converters currently convert overflows to a ValueError
+            converter(2**64)
+
+    @pytest.mark.parametrize(
+        "entry_point",
+        [
+            module + item
+            for item in ("sin", "strings.str_len", "fft._pocketfft_umath.ifft")
+            for module in ("", "numpy:")
+        ] + [
+            "numpy.strings:str_len",
+            "functools:reduce",
+            "functools:reduce.__doc__"
+        ]
+    )
+    def test_import_entry_point(self, entry_point):
+        modname, _, items = entry_point.rpartition(":")
+        if modname:
+            module = obj = importlib.import_module(modname)
+        else:
+            module = np
+        exp = functools.reduce(getattr, items.split("."), module)
+        got = _multiarray_tests.npy_import_entry_point(entry_point)
+        assert got == exp
+
+    @pytest.mark.parametrize(
+        "entry_point",
+        ["sin.", "numpy:", "numpy:sin:__call__", "numpy.sin:__call__."]
+    )
+    def test_import_entry_point_errors(self, entry_point):
+        # Don't really care about precise error.
+        with pytest.raises((ImportError, AttributeError)):
+            _multiarray_tests.npy_import_entry_point(entry_point)
+
+
+class TestSubscripting:
+    def test_test_zero_rank(self):
+        x = np.array([1, 2, 3])
+        assert_(isinstance(x[0], np.int_))
+        assert_(type(x[0, ...]) is np.ndarray)
+
+
+class TestPickling:
+    @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL >= 5,
+                        reason=('this tests the error messages when trying to'
+                                'protocol 5 although it is not available'))
+    def test_correct_protocol5_error_message(self):
+        array = np.arange(10)
+
+    def test_record_array_with_object_dtype(self):
+        my_object = object()
+
+        arr_with_object = np.array(
+                [(my_object, 1, 2.0)],
+                dtype=[('a', object), ('b', int), ('c', float)])
+        arr_without_object = np.array(
+                [('xxx', 1, 2.0)],
+                dtype=[('a', str), ('b', int), ('c', float)])
+
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            depickled_arr_with_object = pickle.loads(
+                    pickle.dumps(arr_with_object, protocol=proto))
+            depickled_arr_without_object = pickle.loads(
+                    pickle.dumps(arr_without_object, protocol=proto))
+
+            assert_equal(arr_with_object.dtype,
+                         depickled_arr_with_object.dtype)
+            assert_equal(arr_without_object.dtype,
+                         depickled_arr_without_object.dtype)
+
+    @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5,
+                        reason="requires pickle protocol 5")
+    def test_f_contiguous_array(self):
+        f_contiguous_array = np.array([[1, 2, 3], [4, 5, 6]], order='F')
+        buffers = []
+
+        # When using pickle protocol 5, Fortran-contiguous arrays can be
+        # serialized using out-of-band buffers
+        bytes_string = pickle.dumps(f_contiguous_array, protocol=5,
+                                    buffer_callback=buffers.append)
+
+        assert len(buffers) > 0
+
+        depickled_f_contiguous_array = pickle.loads(bytes_string,
+                                                    buffers=buffers)
+
+        assert_equal(f_contiguous_array, depickled_f_contiguous_array)
+
+    @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5, reason="requires pickle protocol 5")
+    @pytest.mark.parametrize('transposed_contiguous_array',
+        [np.random.default_rng(42).random((2, 3, 4)).transpose((1, 0, 2)),
+         np.random.default_rng(42).random((2, 3, 4, 5)).transpose((1, 3, 0, 2))] +
+        [np.random.default_rng(42).random(np.arange(2, 7)).transpose(np.random.permutation(5)) for _ in range(3)])
+    def test_transposed_contiguous_array(self, transposed_contiguous_array):
+        buffers = []
+        # When using pickle protocol 5, arrays which can be transposed to c_contiguous
+        # can be serialized using out-of-band buffers
+        bytes_string = pickle.dumps(transposed_contiguous_array, protocol=5,
+                                    buffer_callback=buffers.append)
+
+        assert len(buffers) > 0
+
+        depickled_transposed_contiguous_array = pickle.loads(bytes_string,
+                                                    buffers=buffers)
+
+        assert_equal(transposed_contiguous_array, depickled_transposed_contiguous_array)
+
+    @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5, reason="requires pickle protocol 5")
+    def test_load_legacy_pkl_protocol5(self):
+        # legacy byte strs are dumped in 2.2.1
+        c_contiguous_dumped = b'\x80\x05\x95\x90\x00\x00\x00\x00\x00\x00\x00\x8c\x13numpy._core.numeric\x94\x8c\x0b_frombuffer\x94\x93\x94(\x96\x18\x00\x00\x00\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x94\x8c\x05numpy\x94\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94bK\x03K\x04K\x02\x87\x94\x8c\x01C\x94t\x94R\x94.'  # noqa: E501
+        f_contiguous_dumped = b'\x80\x05\x95\x90\x00\x00\x00\x00\x00\x00\x00\x8c\x13numpy._core.numeric\x94\x8c\x0b_frombuffer\x94\x93\x94(\x96\x18\x00\x00\x00\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x94\x8c\x05numpy\x94\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94bK\x03K\x04K\x02\x87\x94\x8c\x01F\x94t\x94R\x94.'   # noqa: E501
+        transposed_contiguous_dumped = b'\x80\x05\x95\xa5\x00\x00\x00\x00\x00\x00\x00\x8c\x16numpy._core.multiarray\x94\x8c\x0c_reconstruct\x94\x93\x94\x8c\x05numpy\x94\x8c\x07ndarray\x94\x93\x94K\x00\x85\x94C\x01b\x94\x87\x94R\x94(K\x01K\x04K\x03K\x02\x87\x94h\x03\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94b\x89C\x18\x00\x01\x08\t\x10\x11\x02\x03\n\x0b\x12\x13\x04\x05\x0c\r\x14\x15\x06\x07\x0e\x0f\x16\x17\x94t\x94b.'   # noqa: E501
+        no_contiguous_dumped = b'\x80\x05\x95\x91\x00\x00\x00\x00\x00\x00\x00\x8c\x16numpy._core.multiarray\x94\x8c\x0c_reconstruct\x94\x93\x94\x8c\x05numpy\x94\x8c\x07ndarray\x94\x93\x94K\x00\x85\x94C\x01b\x94\x87\x94R\x94(K\x01K\x03K\x02\x86\x94h\x03\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94b\x89C\x06\x00\x01\x04\x05\x08\t\x94t\x94b.'  # noqa: E501
+        x = np.arange(24, dtype='uint8').reshape(3, 4, 2)
+        assert_equal(x, pickle.loads(c_contiguous_dumped))
+        x = np.arange(24, dtype='uint8').reshape(3, 4, 2, order='F')
+        assert_equal(x, pickle.loads(f_contiguous_dumped))
+        x = np.arange(24, dtype='uint8').reshape(3, 4, 2).transpose((1, 0, 2))
+        assert_equal(x, pickle.loads(transposed_contiguous_dumped))
+        x = np.arange(12, dtype='uint8').reshape(3, 4)[:, :2]
+        assert_equal(x, pickle.loads(no_contiguous_dumped))
+
+    def test_non_contiguous_array(self):
+        non_contiguous_array = np.arange(12).reshape(3, 4)[:, :2]
+        assert not non_contiguous_array.flags.c_contiguous
+        assert not non_contiguous_array.flags.f_contiguous
+
+        # make sure non-contiguous arrays can be pickled-depickled
+        # using any protocol
+        buffers = []
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            depickled_non_contiguous_array = pickle.loads(
+                    pickle.dumps(non_contiguous_array, protocol=proto,
+                                 buffer_callback=buffers.append if proto >= 5 else None))
+
+            assert_equal(len(buffers), 0)
+            assert_equal(non_contiguous_array, depickled_non_contiguous_array)
+
+    @pytest.mark.thread_unsafe(reason="calls gc.collect()")
+    def test_roundtrip(self):
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            carray = np.array([[2, 9], [7, 0], [3, 8]])
+            DATA = [
+                carray,
+                np.transpose(carray),
+                np.array([('xxx', 1, 2.0)], dtype=[('a', (str, 3)), ('b', int),
+                                                   ('c', float)])
+            ]
+
+            refs = [weakref.ref(a) for a in DATA]
+            for a in DATA:
+                assert_equal(
+                        a, pickle.loads(pickle.dumps(a, protocol=proto)),
+                        err_msg=f"{a!r}")
+            del a, DATA, carray
+            break_cycles()
+            # check for reference leaks (gh-12793)
+            for ref in refs:
+                assert ref() is None
+
+    def _loads(self, obj):
+        return pickle.loads(obj, encoding='latin1')
+
+    # version 0 pickles, using protocol=2 to pickle
+    # version 0 doesn't have a version field
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_version0_int8(self):
+        s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x04\x85cnumpy\ndtype\nq\x04U\x02i1K\x00K\x01\x87Rq\x05(U\x01|NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89U\x04\x01\x02\x03\x04tb."
+        a = np.array([1, 2, 3, 4], dtype=np.int8)
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_version0_float32(self):
+        s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x04\x85cnumpy\ndtype\nq\x04U\x02f4K\x00K\x01\x87Rq\x05(U\x01<NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89U\x10\x00\x00\x80?\x00\x00\x00@\x00\x00@@\x00\x00\x80@tb."
+        a = np.array([1.0, 2.0, 3.0, 4.0], dtype=np.float32)
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_version0_object(self):
+        s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x02\x85cnumpy\ndtype\nq\x04U\x02O8K\x00K\x01\x87Rq\x05(U\x01|NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89]q\x06(}q\x07U\x01aK\x01s}q\x08U\x01bK\x02setb."
+        a = np.array([{'a': 1}, {'b': 2}])
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    # version 1 pickles, using protocol=2 to pickle
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_version1_int8(self):
+        s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x01K\x04\x85cnumpy\ndtype\nq\x04U\x02i1K\x00K\x01\x87Rq\x05(K\x01U\x01|NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89U\x04\x01\x02\x03\x04tb."
+        a = np.array([1, 2, 3, 4], dtype=np.int8)
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_version1_float32(self):
+        s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x01K\x04\x85cnumpy\ndtype\nq\x04U\x02f4K\x00K\x01\x87Rq\x05(K\x01U\x01<NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89U\x10\x00\x00\x80?\x00\x00\x00@\x00\x00@@\x00\x00\x80@tb."
+        a = np.array([1.0, 2.0, 3.0, 4.0], dtype=np.float32)
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_version1_object(self):
+        s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x01K\x02\x85cnumpy\ndtype\nq\x04U\x02O8K\x00K\x01\x87Rq\x05(K\x01U\x01|NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89]q\x06(}q\x07U\x01aK\x01s}q\x08U\x01bK\x02setb."
+        a = np.array([{'a': 1}, {'b': 2}])
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_subarray_int_shape(self):
+        s = b"cnumpy.core.multiarray\n_reconstruct\np0\n(cnumpy\nndarray\np1\n(I0\ntp2\nS'b'\np3\ntp4\nRp5\n(I1\n(I1\ntp6\ncnumpy\ndtype\np7\n(S'V6'\np8\nI0\nI1\ntp9\nRp10\n(I3\nS'|'\np11\nN(S'a'\np12\ng3\ntp13\n(dp14\ng12\n(g7\n(S'V4'\np15\nI0\nI1\ntp16\nRp17\n(I3\nS'|'\np18\n(g7\n(S'i1'\np19\nI0\nI1\ntp20\nRp21\n(I3\nS'|'\np22\nNNNI-1\nI-1\nI0\ntp23\nb(I2\nI2\ntp24\ntp25\nNNI4\nI1\nI0\ntp26\nbI0\ntp27\nsg3\n(g7\n(S'V2'\np28\nI0\nI1\ntp29\nRp30\n(I3\nS'|'\np31\n(g21\nI2\ntp32\nNNI2\nI1\nI0\ntp33\nbI4\ntp34\nsI6\nI1\nI0\ntp35\nbI00\nS'\\x01\\x01\\x01\\x01\\x01\\x02'\np36\ntp37\nb."
+        a = np.array([(1, (1, 2))], dtype=[('a', 'i1', (2, 2)), ('b', 'i1', 2)])
+        p = self._loads(s)
+        assert_equal(a, p)
+
+    def test_datetime64_byteorder(self):
+        original = np.array([['2015-02-24T00:00:00.000000000']], dtype='datetime64[ns]')
+
+        original_byte_reversed = original.copy(order='K')
+        new_dtype = original_byte_reversed.dtype.newbyteorder('S')
+        original_byte_reversed = original_byte_reversed.view(dtype=new_dtype)
+        original_byte_reversed.byteswap(inplace=True)
+
+        new = pickle.loads(pickle.dumps(original_byte_reversed))
+
+        assert_equal(original.dtype, new.dtype)
+
+
+class TestFancyIndexing:
+    def test_list(self):
+        x = np.ones((1, 1))
+        x[:, [0]] = 2.0
+        assert_array_equal(x, np.array([[2.0]]))
+
+        x = np.ones((1, 1, 1))
+        x[:, :, [0]] = 2.0
+        assert_array_equal(x, np.array([[[2.0]]]))
+
+    def test_tuple(self):
+        x = np.ones((1, 1))
+        x[:, (0,)] = 2.0
+        assert_array_equal(x, np.array([[2.0]]))
+        x = np.ones((1, 1, 1))
+        x[:, :, (0,)] = 2.0
+        assert_array_equal(x, np.array([[[2.0]]]))
+
+    def test_mask(self):
+        x = np.array([1, 2, 3, 4])
+        m = np.array([0, 1, 0, 0], bool)
+        assert_array_equal(x[m], np.array([2]))
+
+    def test_mask2(self):
+        x = np.array([[1, 2, 3, 4], [5, 6, 7, 8]])
+        m = np.array([0, 1], bool)
+        m2 = np.array([[0, 1, 0, 0], [1, 0, 0, 0]], bool)
+        m3 = np.array([[0, 1, 0, 0], [0, 0, 0, 0]], bool)
+        assert_array_equal(x[m], np.array([[5, 6, 7, 8]]))
+        assert_array_equal(x[m2], np.array([2, 5]))
+        assert_array_equal(x[m3], np.array([2]))
+
+    def test_assign_mask(self):
+        x = np.array([1, 2, 3, 4])
+        m = np.array([0, 1, 0, 0], bool)
+        x[m] = 5
+        assert_array_equal(x, np.array([1, 5, 3, 4]))
+
+    def test_assign_mask2(self):
+        xorig = np.array([[1, 2, 3, 4], [5, 6, 7, 8]])
+        m = np.array([0, 1], bool)
+        m2 = np.array([[0, 1, 0, 0], [1, 0, 0, 0]], bool)
+        m3 = np.array([[0, 1, 0, 0], [0, 0, 0, 0]], bool)
+        x = xorig.copy()
+        x[m] = 10
+        assert_array_equal(x, np.array([[1, 2, 3, 4], [10, 10, 10, 10]]))
+        x = xorig.copy()
+        x[m2] = 10
+        assert_array_equal(x, np.array([[1, 10, 3, 4], [10, 6, 7, 8]]))
+        x = xorig.copy()
+        x[m3] = 10
+        assert_array_equal(x, np.array([[1, 10, 3, 4], [5, 6, 7, 8]]))
+
+
+class TestStringCompare:
+    def test_string(self):
+        g1 = np.array(["This", "is", "example"])
+        g2 = np.array(["This", "was", "example"])
+        assert_array_equal(g1 == g2, [g1[i] == g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 != g2, [g1[i] != g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 <= g2, [g1[i] <= g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 >= g2, [g1[i] >= g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 < g2, [g1[i] < g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 > g2, [g1[i] > g2[i] for i in [0, 1, 2]])
+
+    def test_mixed(self):
+        g1 = np.array(["spam", "spa", "spammer", "and eggs"])
+        g2 = "spam"
+        assert_array_equal(g1 == g2, [x == g2 for x in g1])
+        assert_array_equal(g1 != g2, [x != g2 for x in g1])
+        assert_array_equal(g1 < g2, [x < g2 for x in g1])
+        assert_array_equal(g1 > g2, [x > g2 for x in g1])
+        assert_array_equal(g1 <= g2, [x <= g2 for x in g1])
+        assert_array_equal(g1 >= g2, [x >= g2 for x in g1])
+
+    def test_unicode(self):
+        g1 = np.array(["This", "is", "example"])
+        g2 = np.array(["This", "was", "example"])
+        assert_array_equal(g1 == g2, [g1[i] == g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 != g2, [g1[i] != g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 <= g2, [g1[i] <= g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 >= g2, [g1[i] >= g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 < g2,  [g1[i] < g2[i] for i in [0, 1, 2]])
+        assert_array_equal(g1 > g2,  [g1[i] > g2[i] for i in [0, 1, 2]])
+
+class TestArgmaxArgminCommon:
+
+    sizes = [(), (3,), (3, 2), (2, 3),
+             (3, 3), (2, 3, 4), (4, 3, 2),
+             (1, 2, 3, 4), (2, 3, 4, 1),
+             (3, 4, 1, 2), (4, 1, 2, 3),
+             (64,), (128,), (256,)]
+
+    @pytest.mark.parametrize("size, axis", itertools.chain(*[[(size, axis)
+        for axis in list(range(-len(size), len(size))) + [None]]
+        for size in sizes]))
+    @pytest.mark.parametrize('method', [np.argmax, np.argmin])
+    def test_np_argmin_argmax_keepdims(self, size, axis, method):
+
+        arr = np.random.normal(size=size)
+
+        # contiguous arrays
+        if axis is None:
+            new_shape = [1 for _ in range(len(size))]
+        else:
+            new_shape = list(size)
+            new_shape[axis] = 1
+        new_shape = tuple(new_shape)
+
+        _res_orig = method(arr, axis=axis)
+        res_orig = _res_orig.reshape(new_shape)
+        res = method(arr, axis=axis, keepdims=True)
+        assert_equal(res, res_orig)
+        assert_(res.shape == new_shape)
+        outarray = np.empty(res.shape, dtype=res.dtype)
+        res1 = method(arr, axis=axis, out=outarray,
+                            keepdims=True)
+        assert_(res1 is outarray)
+        assert_equal(res, outarray)
+
+        if len(size) > 0:
+            wrong_shape = list(new_shape)
+            if axis is not None:
+                wrong_shape[axis] = 2
+            else:
+                wrong_shape[0] = 2
+            wrong_outarray = np.empty(wrong_shape, dtype=res.dtype)
+            with pytest.raises(ValueError):
+                method(arr.T, axis=axis,
+                        out=wrong_outarray, keepdims=True)
+
+        # non-contiguous arrays
+        if axis is None:
+            new_shape = [1 for _ in range(len(size))]
+        else:
+            new_shape = list(size)[::-1]
+            new_shape[axis] = 1
+        new_shape = tuple(new_shape)
+
+        _res_orig = method(arr.T, axis=axis)
+        res_orig = _res_orig.reshape(new_shape)
+        res = method(arr.T, axis=axis, keepdims=True)
+        assert_equal(res, res_orig)
+        assert_(res.shape == new_shape)
+        outarray = np.empty(new_shape[::-1], dtype=res.dtype)
+        outarray = outarray.T
+        res1 = method(arr.T, axis=axis, out=outarray,
+                            keepdims=True)
+        assert_(res1 is outarray)
+        assert_equal(res, outarray)
+
+        if len(size) > 0:
+            # one dimension lesser for non-zero sized
+            # array should raise an error
+            with pytest.raises(ValueError):
+                method(arr[0], axis=axis,
+                        out=outarray, keepdims=True)
+
+        if len(size) > 0:
+            wrong_shape = list(new_shape)
+            if axis is not None:
+                wrong_shape[axis] = 2
+            else:
+                wrong_shape[0] = 2
+            wrong_outarray = np.empty(wrong_shape, dtype=res.dtype)
+            with pytest.raises(ValueError):
+                method(arr.T, axis=axis,
+                        out=wrong_outarray, keepdims=True)
+
+    @pytest.mark.parametrize('method', ['max', 'min'])
+    def test_all(self, method):
+        a = np.random.normal(0, 1, (4, 5, 6, 7, 8))
+        arg_method = getattr(a, 'arg' + method)
+        val_method = getattr(a, method)
+        for i in range(a.ndim):
+            a_maxmin = val_method(i)
+            aarg_maxmin = arg_method(i)
+            axes = list(range(a.ndim))
+            axes.remove(i)
+            assert_(np.all(a_maxmin == aarg_maxmin.choose(
+                                        *a.transpose(i, *axes))))
+
+    @pytest.mark.parametrize('method', ['argmax', 'argmin'])
+    def test_output_shape(self, method):
+        # see also gh-616
+        a = np.ones((10, 5))
+        arg_method = getattr(a, method)
+        # Check some simple shape mismatches
+        out = np.ones(11, dtype=np.int_)
+        assert_raises(ValueError, arg_method, -1, out)
+
+        out = np.ones((2, 5), dtype=np.int_)
+        assert_raises(ValueError, arg_method, -1, out)
+
+        # these could be relaxed possibly (used to allow even the previous)
+        out = np.ones((1, 10), dtype=np.int_)
+        assert_raises(ValueError, arg_method, -1, out)
+
+        out = np.ones(10, dtype=np.int_)
+        arg_method(-1, out=out)
+        assert_equal(out, arg_method(-1))
+
+    @pytest.mark.parametrize('ndim', [0, 1])
+    @pytest.mark.parametrize('method', ['argmax', 'argmin'])
+    def test_ret_is_out(self, ndim, method):
+        a = np.ones((4,) + (256,) * ndim)
+        arg_method = getattr(a, method)
+        out = np.empty((256,) * ndim, dtype=np.intp)
+        ret = arg_method(axis=0, out=out)
+        assert ret is out
+
+    @pytest.mark.parametrize('np_array, method, idx, val',
+        [(np.zeros, 'argmax', 5942, "as"),
+         (np.ones, 'argmin', 6001, "0")])
+    def test_unicode(self, np_array, method, idx, val):
+        d = np_array(6031, dtype='<U9')
+        arg_method = getattr(d, method)
+        d[idx] = val
+        assert_equal(arg_method(), idx)
+
+    @pytest.mark.parametrize('arr_method, np_method',
+        [('argmax', np.argmax),
+         ('argmin', np.argmin)])
+    def test_np_vs_ndarray(self, arr_method, np_method):
+        # make sure both ndarray.argmax/argmin and
+        # numpy.argmax/argmin support out/axis args
+        a = np.random.normal(size=(2, 3))
+        arg_method = getattr(a, arr_method)
+
+        # check positional args
+        out1 = np.zeros(2, dtype=int)
+        out2 = np.zeros(2, dtype=int)
+        assert_equal(arg_method(1, out1), np_method(a, 1, out2))
+        assert_equal(out1, out2)
+
+        # check keyword args
+        out1 = np.zeros(3, dtype=int)
+        out2 = np.zeros(3, dtype=int)
+        assert_equal(arg_method(out=out1, axis=0),
+                     np_method(a, out=out2, axis=0))
+        assert_equal(out1, out2)
+
+    @pytest.mark.leaks_references(reason="replaces None with NULL.")
+    @pytest.mark.parametrize('method, vals',
+        [('argmax', (10, 30)),
+         ('argmin', (30, 10))])
+    def test_object_with_NULLs(self, method, vals):
+        # See gh-6032
+        a = np.empty(4, dtype='O')
+        arg_method = getattr(a, method)
+        ctypes.memset(a.ctypes.data, 0, a.nbytes)
+        assert_equal(arg_method(), 0)
+        a[3] = vals[0]
+        assert_equal(arg_method(), 3)
+        a[1] = vals[1]
+        assert_equal(arg_method(), 1)
+
+class TestArgmax:
+    usg_data = [
+        ([1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0], 0),
+        ([3, 3, 3, 3,  2,  2,  2,  2], 0),
+        ([0, 1, 2, 3,  4,  5,  6,  7], 7),
+        ([7, 6, 5, 4,  3,  2,  1,  0], 0)
+    ]
+    sg_data = usg_data + [
+        ([1, 2, 3, 4, -4, -3, -2, -1], 3),
+        ([1, 2, 3, 4, -1, -2, -3, -4], 3)
+    ]
+    darr = [(np.array(d[0], dtype=t), d[1]) for d, t in (
+        itertools.product(usg_data, (
+            np.uint8, np.uint16, np.uint32, np.uint64
+        ))
+    )]
+    darr = darr + [(np.array(d[0], dtype=t), d[1]) for d, t in (
+        itertools.product(sg_data, (
+            np.int8, np.int16, np.int32, np.int64, np.float32, np.float64
+        ))
+    )]
+    darr = darr + [(np.array(d[0], dtype=t), d[1]) for d, t in (
+        itertools.product((
+            ([0, 1, 2, 3, np.nan], 4),
+            ([0, 1, 2, np.nan, 3], 3),
+            ([np.nan, 0, 1, 2, 3], 0),
+            ([np.nan, 0, np.nan, 2, 3], 0),
+            # To hit the tail of SIMD multi-level(x4, x1) inner loops
+            # on variant SIMD widths
+            ([1] * (2 * 5 - 1) + [np.nan], 2 * 5 - 1),
+            ([1] * (4 * 5 - 1) + [np.nan], 4 * 5 - 1),
+            ([1] * (8 * 5 - 1) + [np.nan], 8 * 5 - 1),
+            ([1] * (16 * 5 - 1) + [np.nan], 16 * 5 - 1),
+            ([1] * (32 * 5 - 1) + [np.nan], 32 * 5 - 1)
+        ), (
+            np.float32, np.float64
+        ))
+    )]
+    nan_arr = darr + [
+        ([0, 1, 2, 3, complex(0, np.nan)], 4),
+        ([0, 1, 2, 3, complex(np.nan, 0)], 4),
+        ([0, 1, 2, complex(np.nan, 0), 3], 3),
+        ([0, 1, 2, complex(0, np.nan), 3], 3),
+        ([complex(0, np.nan), 0, 1, 2, 3], 0),
+        ([complex(np.nan, np.nan), 0, 1, 2, 3], 0),
+        ([complex(np.nan, 0), complex(np.nan, 2), complex(np.nan, 1)], 0),
+        ([complex(np.nan, np.nan), complex(np.nan, 2), complex(np.nan, 1)], 0),
+        ([complex(np.nan, 0), complex(np.nan, 2), complex(np.nan, np.nan)], 0),
+
+        ([complex(0, 0), complex(0, 2), complex(0, 1)], 1),
+        ([complex(1, 0), complex(0, 2), complex(0, 1)], 0),
+        ([complex(1, 0), complex(0, 2), complex(1, 1)], 2),
+
+        ([np.datetime64('1923-04-14T12:43:12'),
+          np.datetime64('1994-06-21T14:43:15'),
+          np.datetime64('2001-10-15T04:10:32'),
+          np.datetime64('1995-11-25T16:02:16'),
+          np.datetime64('2005-01-04T03:14:12'),
+          np.datetime64('2041-12-03T14:05:03')], 5),
+        ([np.datetime64('1935-09-14T04:40:11'),
+          np.datetime64('1949-10-12T12:32:11'),
+          np.datetime64('2010-01-03T05:14:12'),
+          np.datetime64('2015-11-20T12:20:59'),
+          np.datetime64('1932-09-23T10:10:13'),
+          np.datetime64('2014-10-10T03:50:30')], 3),
+        # Assorted tests with NaTs
+        ([np.datetime64('NaT'),
+          np.datetime64('NaT'),
+          np.datetime64('2010-01-03T05:14:12'),
+          np.datetime64('NaT'),
+          np.datetime64('2015-09-23T10:10:13'),
+          np.datetime64('1932-10-10T03:50:30')], 0),
+        ([np.datetime64('2059-03-14T12:43:12'),
+          np.datetime64('1996-09-21T14:43:15'),
+          np.datetime64('NaT'),
+          np.datetime64('2022-12-25T16:02:16'),
+          np.datetime64('1963-10-04T03:14:12'),
+          np.datetime64('2013-05-08T18:15:23')], 2),
+        ([np.timedelta64(2, 's'),
+          np.timedelta64(1, 's'),
+          np.timedelta64('NaT', 's'),
+          np.timedelta64(3, 's')], 2),
+        ([np.timedelta64('NaT', 's')] * 3, 0),
+
+        ([timedelta(days=5, seconds=14), timedelta(days=2, seconds=35),
+          timedelta(days=-1, seconds=23)], 0),
+        ([timedelta(days=1, seconds=43), timedelta(days=10, seconds=5),
+          timedelta(days=5, seconds=14)], 1),
+        ([timedelta(days=10, seconds=24), timedelta(days=10, seconds=5),
+          timedelta(days=10, seconds=43)], 2),
+
+        ([False, False, False, False, True], 4),
+        ([False, False, False, True, False], 3),
+        ([True, False, False, False, False], 0),
+        ([True, False, True, False, False], 0),
+    ]
+
+    @pytest.mark.parametrize('data', nan_arr)
+    def test_combinations(self, data):
+        arr, pos = data
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore',
+                "invalid value encountered in reduce",
+                RuntimeWarning)
+            val = np.max(arr)
+
+        assert_equal(np.argmax(arr), pos, err_msg=f"{arr!r}")
+        assert_equal(arr[np.argmax(arr)], val, err_msg=f"{arr!r}")
+
+        # add padding to test SIMD loops
+        rarr = np.repeat(arr, 129)
+        rpos = pos * 129
+        assert_equal(np.argmax(rarr), rpos, err_msg=f"{rarr!r}")
+        assert_equal(rarr[np.argmax(rarr)], val, err_msg=f"{rarr!r}")
+
+        padd = np.repeat(np.min(arr), 513)
+        rarr = np.concatenate((arr, padd))
+        rpos = pos
+        assert_equal(np.argmax(rarr), rpos, err_msg=f"{rarr!r}")
+        assert_equal(rarr[np.argmax(rarr)], val, err_msg=f"{rarr!r}")
+
+    def test_maximum_signed_integers(self):
+
+        a = np.array([1, 2**7 - 1, -2**7], dtype=np.int8)
+        assert_equal(np.argmax(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmax(a), 129)
+
+        a = np.array([1, 2**15 - 1, -2**15], dtype=np.int16)
+        assert_equal(np.argmax(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmax(a), 129)
+
+        a = np.array([1, 2**31 - 1, -2**31], dtype=np.int32)
+        assert_equal(np.argmax(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmax(a), 129)
+
+        a = np.array([1, 2**63 - 1, -2**63], dtype=np.int64)
+        assert_equal(np.argmax(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmax(a), 129)
+
+class TestArgmin:
+    usg_data = [
+        ([1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0], 8),
+        ([3, 3, 3, 3,  2,  2,  2,  2], 4),
+        ([0, 1, 2, 3,  4,  5,  6,  7], 0),
+        ([7, 6, 5, 4,  3,  2,  1,  0], 7)
+    ]
+    sg_data = usg_data + [
+        ([1, 2, 3, 4, -4, -3, -2, -1], 4),
+        ([1, 2, 3, 4, -1, -2, -3, -4], 7)
+    ]
+    darr = [(np.array(d[0], dtype=t), d[1]) for d, t in (
+        itertools.product(usg_data, (
+            np.uint8, np.uint16, np.uint32, np.uint64
+        ))
+    )]
+    darr = darr + [(np.array(d[0], dtype=t), d[1]) for d, t in (
+        itertools.product(sg_data, (
+            np.int8, np.int16, np.int32, np.int64, np.float32, np.float64
+        ))
+    )]
+    darr = darr + [(np.array(d[0], dtype=t), d[1]) for d, t in (
+        itertools.product((
+            ([0, 1, 2, 3, np.nan], 4),
+            ([0, 1, 2, np.nan, 3], 3),
+            ([np.nan, 0, 1, 2, 3], 0),
+            ([np.nan, 0, np.nan, 2, 3], 0),
+            # To hit the tail of SIMD multi-level(x4, x1) inner loops
+            # on variant SIMD widths
+            ([1] * (2 * 5 - 1) + [np.nan], 2 * 5 - 1),
+            ([1] * (4 * 5 - 1) + [np.nan], 4 * 5 - 1),
+            ([1] * (8 * 5 - 1) + [np.nan], 8 * 5 - 1),
+            ([1] * (16 * 5 - 1) + [np.nan], 16 * 5 - 1),
+            ([1] * (32 * 5 - 1) + [np.nan], 32 * 5 - 1)
+        ), (
+            np.float32, np.float64
+        ))
+    )]
+    nan_arr = darr + [
+        ([0, 1, 2, 3, complex(0, np.nan)], 4),
+        ([0, 1, 2, 3, complex(np.nan, 0)], 4),
+        ([0, 1, 2, complex(np.nan, 0), 3], 3),
+        ([0, 1, 2, complex(0, np.nan), 3], 3),
+        ([complex(0, np.nan), 0, 1, 2, 3], 0),
+        ([complex(np.nan, np.nan), 0, 1, 2, 3], 0),
+        ([complex(np.nan, 0), complex(np.nan, 2), complex(np.nan, 1)], 0),
+        ([complex(np.nan, np.nan), complex(np.nan, 2), complex(np.nan, 1)], 0),
+        ([complex(np.nan, 0), complex(np.nan, 2), complex(np.nan, np.nan)], 0),
+
+        ([complex(0, 0), complex(0, 2), complex(0, 1)], 0),
+        ([complex(1, 0), complex(0, 2), complex(0, 1)], 2),
+        ([complex(1, 0), complex(0, 2), complex(1, 1)], 1),
+
+        ([np.datetime64('1923-04-14T12:43:12'),
+          np.datetime64('1994-06-21T14:43:15'),
+          np.datetime64('2001-10-15T04:10:32'),
+          np.datetime64('1995-11-25T16:02:16'),
+          np.datetime64('2005-01-04T03:14:12'),
+          np.datetime64('2041-12-03T14:05:03')], 0),
+        ([np.datetime64('1935-09-14T04:40:11'),
+          np.datetime64('1949-10-12T12:32:11'),
+          np.datetime64('2010-01-03T05:14:12'),
+          np.datetime64('2014-11-20T12:20:59'),
+          np.datetime64('2015-09-23T10:10:13'),
+          np.datetime64('1932-10-10T03:50:30')], 5),
+        # Assorted tests with NaTs
+        ([np.datetime64('NaT'),
+          np.datetime64('NaT'),
+          np.datetime64('2010-01-03T05:14:12'),
+          np.datetime64('NaT'),
+          np.datetime64('2015-09-23T10:10:13'),
+          np.datetime64('1932-10-10T03:50:30')], 0),
+        ([np.datetime64('2059-03-14T12:43:12'),
+          np.datetime64('1996-09-21T14:43:15'),
+          np.datetime64('NaT'),
+          np.datetime64('2022-12-25T16:02:16'),
+          np.datetime64('1963-10-04T03:14:12'),
+          np.datetime64('2013-05-08T18:15:23')], 2),
+        ([np.timedelta64(2, 's'),
+          np.timedelta64(1, 's'),
+          np.timedelta64('NaT', 's'),
+          np.timedelta64(3, 's')], 2),
+        ([np.timedelta64('NaT', 's')] * 3, 0),
+
+        ([timedelta(days=5, seconds=14), timedelta(days=2, seconds=35),
+          timedelta(days=-1, seconds=23)], 2),
+        ([timedelta(days=1, seconds=43), timedelta(days=10, seconds=5),
+          timedelta(days=5, seconds=14)], 0),
+        ([timedelta(days=10, seconds=24), timedelta(days=10, seconds=5),
+          timedelta(days=10, seconds=43)], 1),
+
+        ([True, True, True, True, False], 4),
+        ([True, True, True, False, True], 3),
+        ([False, True, True, True, True], 0),
+        ([False, True, False, True, True], 0),
+    ]
+
+    @pytest.mark.parametrize('data', nan_arr)
+    def test_combinations(self, data):
+        arr, pos = data
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore',
+                "invalid value encountered in reduce",
+                RuntimeWarning)
+            min_val = np.min(arr)
+
+        assert_equal(np.argmin(arr), pos, err_msg=f"{arr!r}")
+        assert_equal(arr[np.argmin(arr)], min_val, err_msg=f"{arr!r}")
+
+        # add padding to test SIMD loops
+        rarr = np.repeat(arr, 129)
+        rpos = pos * 129
+        assert_equal(np.argmin(rarr), rpos, err_msg=f"{rarr!r}")
+        assert_equal(rarr[np.argmin(rarr)], min_val, err_msg=f"{rarr!r}")
+
+        padd = np.repeat(np.max(arr), 513)
+        rarr = np.concatenate((arr, padd))
+        rpos = pos
+        assert_equal(np.argmin(rarr), rpos, err_msg=f"{rarr!r}")
+        assert_equal(rarr[np.argmin(rarr)], min_val, err_msg=f"{rarr!r}")
+
+    def test_minimum_signed_integers(self):
+
+        a = np.array([1, -2**7, -2**7 + 1, 2**7 - 1], dtype=np.int8)
+        assert_equal(np.argmin(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmin(a), 129)
+
+        a = np.array([1, -2**15, -2**15 + 1, 2**15 - 1], dtype=np.int16)
+        assert_equal(np.argmin(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmin(a), 129)
+
+        a = np.array([1, -2**31, -2**31 + 1, 2**31 - 1], dtype=np.int32)
+        assert_equal(np.argmin(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmin(a), 129)
+
+        a = np.array([1, -2**63, -2**63 + 1, 2**63 - 1], dtype=np.int64)
+        assert_equal(np.argmin(a), 1)
+        a = a.repeat(129)
+        assert_equal(np.argmin(a), 129)
+
+class TestMinMax:
+
+    def test_scalar(self):
+        assert_raises(AxisError, np.amax, 1, 1)
+        assert_raises(AxisError, np.amin, 1, 1)
+
+        assert_equal(np.amax(1, axis=0), 1)
+        assert_equal(np.amin(1, axis=0), 1)
+        assert_equal(np.amax(1, axis=None), 1)
+        assert_equal(np.amin(1, axis=None), 1)
+
+    def test_axis(self):
+        assert_raises(AxisError, np.amax, [1, 2, 3], 1000)
+        assert_equal(np.amax([[1, 2, 3]], axis=1), 3)
+
+    def test_datetime(self):
+        # Do not ignore NaT
+        for dtype in ('m8[s]', 'm8[Y]'):
+            a = np.arange(10).astype(dtype)
+            assert_equal(np.amin(a), a[0])
+            assert_equal(np.amax(a), a[9])
+            a[3] = 'NaT'
+            assert_equal(np.amin(a), a[3])
+            assert_equal(np.amax(a), a[3])
+
+
+class TestNewaxis:
+    def test_basic(self):
+        sk = np.array([0, -0.1, 0.1])
+        res = 250 * sk[:, np.newaxis]
+        assert_almost_equal(res.ravel(), 250 * sk)
+
+
+class TestClip:
+    def _check_range(self, x, cmin, cmax):
+        assert_(np.all(x >= cmin))
+        assert_(np.all(x <= cmax))
+
+    def _clip_type(self, type_group, array_max,
+                   clip_min, clip_max, inplace=False,
+                   expected_min=None, expected_max=None):
+        if expected_min is None:
+            expected_min = clip_min
+        if expected_max is None:
+            expected_max = clip_max
+
+        for T in np._core.sctypes[type_group]:
+            if sys.byteorder == 'little':
+                byte_orders = ['=', '>']
+            else:
+                byte_orders = ['<', '=']
+
+            for byteorder in byte_orders:
+                dtype = np.dtype(T).newbyteorder(byteorder)
+
+                x = (np.random.random(1000) * array_max).astype(dtype)
+                if inplace:
+                    # The tests that call us pass clip_min and clip_max that
+                    # might not fit in the destination dtype. They were written
+                    # assuming the previous unsafe casting, which now must be
+                    # passed explicitly to avoid a warning.
+                    x.clip(clip_min, clip_max, x, casting='unsafe')
+                else:
+                    x = x.clip(clip_min, clip_max)
+                    byteorder = '='
+
+                if x.dtype.byteorder == '|':
+                    byteorder = '|'
+                assert_equal(x.dtype.byteorder, byteorder)
+                self._check_range(x, expected_min, expected_max)
+        return x
+
+    def test_basic(self):
+        for inplace in [False, True]:
+            self._clip_type(
+                'float', 1024, -12.8, 100.2, inplace=inplace)
+            self._clip_type(
+                'float', 1024, 0, 0, inplace=inplace)
+
+            self._clip_type(
+                'int', 1024, -120, 100, inplace=inplace)
+            self._clip_type(
+                'int', 1024, 0, 0, inplace=inplace)
+
+            self._clip_type(
+                'uint', 1024, 0, 0, inplace=inplace)
+            self._clip_type(
+                'uint', 1024, 10, 100, inplace=inplace)
+
+    @pytest.mark.parametrize("inplace", [False, True])
+    def test_int_out_of_range(self, inplace):
+        # Simple check for out-of-bound integers, also testing the in-place
+        # path.
+        x = (np.random.random(1000) * 255).astype("uint8")
+        out = np.empty_like(x)
+        res = x.clip(-1, 300, out=out if inplace else None)
+        assert res is out or not inplace
+        assert (res == x).all()
+
+        res = x.clip(-1, 50, out=out if inplace else None)
+        assert res is out or not inplace
+        assert (res <= 50).all()
+        assert (res[x <= 50] == x[x <= 50]).all()
+
+        res = x.clip(100, 1000, out=out if inplace else None)
+        assert res is out or not inplace
+        assert (res >= 100).all()
+        assert (res[x >= 100] == x[x >= 100]).all()
+
+    def test_record_array(self):
+        rec = np.array([(-5, 2.0, 3.0), (5.0, 4.0, 3.0)],
+                       dtype=[('x', '<f8'), ('y', '<f8'), ('z', '<f8')])
+        y = rec['x'].clip(-0.3, 0.5)
+        self._check_range(y, -0.3, 0.5)
+
+    def test_max_or_min(self):
+        val = np.array([0, 1, 2, 3, 4, 5, 6, 7])
+        x = val.clip(3)
+        assert_(np.all(x >= 3))
+        x = val.clip(min=3)
+        assert_(np.all(x >= 3))
+        x = val.clip(max=4)
+        assert_(np.all(x <= 4))
+
+    def test_nan(self):
+        input_arr = np.array([-2., np.nan, 0.5, 3., 0.25, np.nan])
+        result = input_arr.clip(-1, 1)
+        expected = np.array([-1., np.nan, 0.5, 1., 0.25, np.nan])
+        assert_array_equal(result, expected)
+
+
+class TestCompress:
+    def test_axis(self):
+        tgt = [[5, 6, 7, 8, 9]]
+        arr = np.arange(10).reshape(2, 5)
+        out = np.compress([0, 1], arr, axis=0)
+        assert_equal(out, tgt)
+
+        tgt = [[1, 3], [6, 8]]
+        out = np.compress([0, 1, 0, 1, 0], arr, axis=1)
+        assert_equal(out, tgt)
+
+    def test_truncate(self):
+        tgt = [[1], [6]]
+        arr = np.arange(10).reshape(2, 5)
+        out = np.compress([0, 1], arr, axis=1)
+        assert_equal(out, tgt)
+
+    def test_flatten(self):
+        arr = np.arange(10).reshape(2, 5)
+        out = np.compress([0, 1], arr)
+        assert_equal(out, 1)
+
+
+class TestPutmask:
+    def tst_basic(self, x, T, mask, val):
+        np.putmask(x, mask, val)
+        assert_equal(x[mask], np.array(val, T))
+
+    def test_ip_types(self):
+        unchecked_types = [bytes, str, np.void]
+
+        x = np.random.random(1000) * 100
+        mask = x < 40
+
+        for val in [-100, 0, 15]:
+            for types in np._core.sctypes.values():
+                for T in types:
+                    if T not in unchecked_types:
+                        if val < 0 and np.dtype(T).kind == "u":
+                            val = np.iinfo(T).max - 99
+                        self.tst_basic(x.copy().astype(T), T, mask, val)
+
+            # Also test string of a length which uses an untypical length
+            dt = np.dtype("S3")
+            self.tst_basic(x.astype(dt), dt.type, mask, dt.type(val)[:3])
+
+    def test_mask_size(self):
+        assert_raises(ValueError, np.putmask, np.array([1, 2, 3]), [True], 5)
+
+    @pytest.mark.parametrize('dtype', ('>i4', '<i4'))
+    def test_byteorder(self, dtype):
+        x = np.array([1, 2, 3], dtype)
+        np.putmask(x, [True, False, True], -1)
+        assert_array_equal(x, [-1, 2, -1])
+
+    def test_record_array(self):
+        # Note mixed byteorder.
+        rec = np.array([(-5, 2.0, 3.0), (5.0, 4.0, 3.0)],
+                      dtype=[('x', '<f8'), ('y', '>f8'), ('z', '<f8')])
+        np.putmask(rec['x'], [True, False], 10)
+        assert_array_equal(rec['x'], [10, 5])
+        assert_array_equal(rec['y'], [2, 4])
+        assert_array_equal(rec['z'], [3, 3])
+        np.putmask(rec['y'], [True, False], 11)
+        assert_array_equal(rec['x'], [10, 5])
+        assert_array_equal(rec['y'], [11, 4])
+        assert_array_equal(rec['z'], [3, 3])
+
+    def test_overlaps(self):
+        # gh-6272 check overlap
+        x = np.array([True, False, True, False])
+        np.putmask(x[1:4], [True, True, True], x[:3])
+        assert_equal(x, np.array([True, True, False, True]))
+
+        x = np.array([True, False, True, False])
+        np.putmask(x[1:4], x[:3], [True, False, True])
+        assert_equal(x, np.array([True, True, True, True]))
+
+    def test_writeable(self):
+        a = np.arange(5)
+        a.flags.writeable = False
+
+        with pytest.raises(ValueError):
+            np.putmask(a, a >= 2, 3)
+
+    def test_kwargs(self):
+        x = np.array([0, 0])
+        np.putmask(x, [0, 1], [-1, -2])
+        assert_array_equal(x, [0, -2])
+
+        x = np.array([0, 0])
+        np.putmask(x, mask=[0, 1], values=[-1, -2])
+        assert_array_equal(x, [0, -2])
+
+        x = np.array([0, 0])
+        np.putmask(x, values=[-1, -2],  mask=[0, 1])
+        assert_array_equal(x, [0, -2])
+
+        with pytest.raises(TypeError):
+            np.putmask(a=x, values=[-1, -2],  mask=[0, 1])
+
+
+class TestTake:
+    def tst_basic(self, x):
+        ind = list(range(x.shape[0]))
+        assert_array_equal(x.take(ind, axis=0), x)
+
+    def test_ip_types(self):
+        unchecked_types = [bytes, str, np.void]
+
+        x = np.random.random(24) * 100
+        x = x.reshape((2, 3, 4))
+        for types in np._core.sctypes.values():
+            for T in types:
+                if T not in unchecked_types:
+                    self.tst_basic(x.copy().astype(T))
+
+            # Also test string of a length which uses an untypical length
+            self.tst_basic(x.astype("S3"))
+
+    def test_raise(self):
+        x = np.random.random(24) * 100
+        x = x.reshape((2, 3, 4))
+        assert_raises(IndexError, x.take, [0, 1, 2], axis=0)
+        assert_raises(IndexError, x.take, [-3], axis=0)
+        assert_array_equal(x.take([-1], axis=0)[0], x[1])
+
+    def test_clip(self):
+        x = np.random.random(24) * 100
+        x = x.reshape((2, 3, 4))
+        assert_array_equal(x.take([-1], axis=0, mode='clip')[0], x[0])
+        assert_array_equal(x.take([2], axis=0, mode='clip')[0], x[1])
+
+    def test_wrap(self):
+        x = np.random.random(24) * 100
+        x = x.reshape((2, 3, 4))
+        assert_array_equal(x.take([-1], axis=0, mode='wrap')[0], x[1])
+        assert_array_equal(x.take([2], axis=0, mode='wrap')[0], x[0])
+        assert_array_equal(x.take([3], axis=0, mode='wrap')[0], x[1])
+
+    @pytest.mark.parametrize('dtype', ('>i4', '<i4'))
+    def test_byteorder(self, dtype):
+        x = np.array([1, 2, 3], dtype)
+        assert_array_equal(x.take([0, 2, 1]), [1, 3, 2])
+
+    def test_record_array(self):
+        # Note mixed byteorder.
+        rec = np.array([(-5, 2.0, 3.0), (5.0, 4.0, 3.0)],
+                      dtype=[('x', '<f8'), ('y', '>f8'), ('z', '<f8')])
+        rec1 = rec.take([1])
+        assert_(rec1['x'] == 5.0 and rec1['y'] == 4.0)
+
+    def test_out_overlap(self):
+        # gh-6272 check overlap on out
+        x = np.arange(5)
+        y = np.take(x, [1, 2, 3], out=x[2:5], mode='wrap')
+        assert_equal(y, np.array([1, 2, 3]))
+
+    @pytest.mark.parametrize('shape', [(1, 2), (1,), ()])
+    def test_ret_is_out(self, shape):
+        # 0d arrays should not be an exception to this rule
+        x = np.arange(5)
+        inds = np.zeros(shape, dtype=np.intp)
+        out = np.zeros(shape, dtype=x.dtype)
+        ret = np.take(x, inds, out=out)
+        assert ret is out
+
+
+class TestLexsort:
+    @pytest.mark.parametrize('dtype', [
+        np.uint8, np.uint16, np.uint32, np.uint64,
+        np.int8, np.int16, np.int32, np.int64,
+        np.float16, np.float32, np.float64
+    ])
+    def test_basic(self, dtype):
+        a = np.array([1, 2, 1, 3, 1, 5], dtype=dtype)
+        b = np.array([0, 4, 5, 6, 2, 3], dtype=dtype)
+        idx = np.lexsort((b, a))
+        expected_idx = np.array([0, 4, 2, 1, 3, 5])
+        assert_array_equal(idx, expected_idx)
+        assert_array_equal(a[idx], np.sort(a))
+
+    def test_mixed(self):
+        a = np.array([1, 2, 1, 3, 1, 5])
+        b = np.array([0, 4, 5, 6, 2, 3], dtype='datetime64[D]')
+
+        idx = np.lexsort((b, a))
+        expected_idx = np.array([0, 4, 2, 1, 3, 5])
+        assert_array_equal(idx, expected_idx)
+
+    def test_datetime(self):
+        a = np.array([0, 0, 0], dtype='datetime64[D]')
+        b = np.array([2, 1, 0], dtype='datetime64[D]')
+        idx = np.lexsort((b, a))
+        expected_idx = np.array([2, 1, 0])
+        assert_array_equal(idx, expected_idx)
+
+        a = np.array([0, 0, 0], dtype='timedelta64[D]')
+        b = np.array([2, 1, 0], dtype='timedelta64[D]')
+        idx = np.lexsort((b, a))
+        expected_idx = np.array([2, 1, 0])
+        assert_array_equal(idx, expected_idx)
+
+    def test_object(self):  # gh-6312
+        a = np.random.choice(10, 1000)
+        b = np.random.choice(['abc', 'xy', 'wz', 'efghi', 'qwst', 'x'], 1000)
+
+        for u in a, b:
+            left = np.lexsort((u.astype('O'),))
+            right = np.argsort(u, kind='mergesort')
+            assert_array_equal(left, right)
+
+        for u, v in (a, b), (b, a):
+            idx = np.lexsort((u, v))
+            assert_array_equal(idx, np.lexsort((u.astype('O'), v)))
+            assert_array_equal(idx, np.lexsort((u, v.astype('O'))))
+            u, v = np.array(u, dtype='object'), np.array(v, dtype='object')
+            assert_array_equal(idx, np.lexsort((u, v)))
+
+    def test_strings(self):  # gh-27984
+        for dtype in "TU":
+            surnames = np.array(['Hertz',    'Galilei', 'Hertz'], dtype=dtype)
+            first_names = np.array(['Heinrich', 'Galileo', 'Gustav'], dtype=dtype)
+            assert_array_equal(np.lexsort((first_names, surnames)), [1, 2, 0])
+
+    def test_invalid_axis(self):  # gh-7528
+        x = np.linspace(0., 1., 42 * 3).reshape(42, 3)
+        assert_raises(AxisError, np.lexsort, x, axis=2)
+
+
+def normalize_filename(tmp_path, param):
+    # Handles two cases, where filename should
+    # be a string, or a path object.
+    path = tmp_path / "file"
+    if param == "string":
+        return str(path)
+    return path
+
+
+class TestIO:
+    """Test tofile, fromfile, tobytes, and fromstring"""
+
+    def _create_data(self):
+        shape = (2, 4, 3)
+        rand = np.random.random
+        x = rand(shape) + rand(shape).astype(complex) * 1j
+        x[0, :, 1] = [np.nan, np.inf, -np.inf, np.nan]
+        return x
+
+    @pytest.fixture(params=["string", "path_obj"])
+    def param_filename(self, request):
+        # This fixtures returns string or path_obj
+        # so that every test doesn't need to have the
+        # paramterize marker.
+        return request.param
+
+    def test_nofile(self):
+        # this should probably be supported as a file
+        # but for now test for proper errors
+        b = io.BytesIO()
+        assert_raises(OSError, np.fromfile, b, np.uint8, 80)
+        d = np.ones(7)
+        assert_raises(OSError, lambda x: x.tofile(b), d)
+
+    def test_bool_fromstring(self):
+        v = np.array([True, False, True, False], dtype=np.bool)
+        y = np.fromstring('1 0 -2.3 0.0', sep=' ', dtype=np.bool)
+        assert_array_equal(v, y)
+
+    def test_uint64_fromstring(self):
+        d = np.fromstring("9923372036854775807 104783749223640",
+                          dtype=np.uint64, sep=' ')
+        e = np.array([9923372036854775807, 104783749223640], dtype=np.uint64)
+        assert_array_equal(d, e)
+
+    def test_int64_fromstring(self):
+        d = np.fromstring("-25041670086757 104783749223640",
+                          dtype=np.int64, sep=' ')
+        e = np.array([-25041670086757, 104783749223640], dtype=np.int64)
+        assert_array_equal(d, e)
+
+    def test_fromstring_count0(self):
+        d = np.fromstring("1,2", sep=",", dtype=np.int64, count=0)
+        assert d.shape == (0,)
+
+    def test_empty_files_text(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        with open(tmp_filename, 'w') as f:
+            pass
+        y = np.fromfile(tmp_filename)
+        assert_(y.size == 0, "Array not empty")
+
+    def test_empty_files_binary(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        with open(tmp_filename, 'wb') as f:
+            pass
+        y = np.fromfile(tmp_filename, sep=" ")
+        assert_(y.size == 0, "Array not empty")
+
+    def test_roundtrip_file(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        with open(tmp_filename, 'wb') as f:
+            x.tofile(f)
+        # NB. doesn't work with flush+seek, due to use of C stdio
+        with open(tmp_filename, 'rb') as f:
+            y = np.fromfile(f, dtype=x.dtype)
+        assert_array_equal(y, x.flat)
+
+    def test_roundtrip(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        x.tofile(tmp_filename)
+        y = np.fromfile(tmp_filename, dtype=x.dtype)
+        assert_array_equal(y, x.flat)
+
+    def test_roundtrip_dump_pathlib(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        p = pathlib.Path(tmp_filename)
+        x.dump(p)
+        y = np.load(p, allow_pickle=True)
+        assert_array_equal(y, x)
+
+    def test_roundtrip_binary_str(self):
+        x = self._create_data()
+        s = x.tobytes()
+        y = np.frombuffer(s, dtype=x.dtype)
+        assert_array_equal(y, x.flat)
+
+        s = x.tobytes('F')
+        y = np.frombuffer(s, dtype=x.dtype)
+        assert_array_equal(y, x.flatten('F'))
+
+    def test_roundtrip_str(self):
+        x = self._create_data()
+        x = x.real.ravel()
+        s = "@".join(map(str, x))
+        y = np.fromstring(s, sep="@")
+        nan_mask = ~np.isfinite(x)
+        assert_array_equal(x[nan_mask], y[nan_mask])
+        assert_array_equal(x[~nan_mask], y[~nan_mask])
+
+    def test_roundtrip_repr(self):
+        x = self._create_data()
+        x = x.real.ravel()
+        s = "@".join(repr(x)[11:-1] for x in x)
+        y = np.fromstring(s, sep="@")
+        assert_array_equal(x, y)
+
+    def test_unseekable_fromfile(self, tmp_path, param_filename):
+        # gh-6246
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        x.tofile(tmp_filename)
+
+        def fail(*args, **kwargs):
+            raise OSError('Can not tell or seek')
+
+        with open(tmp_filename, 'rb', buffering=0) as f:
+            f.seek = fail
+            f.tell = fail
+            assert_raises(OSError, np.fromfile, f, dtype=x.dtype)
+
+    def test_io_open_unbuffered_fromfile(self, tmp_path, param_filename):
+        # gh-6632
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        x.tofile(tmp_filename)
+        with open(tmp_filename, 'rb', buffering=0) as f:
+            y = np.fromfile(f, dtype=x.dtype)
+            assert_array_equal(y, x.flat)
+
+    def test_largish_file(self, tmp_path, param_filename):
+        # check the fallocate path on files > 16MB
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        d = np.zeros(4 * 1024 ** 2)
+        d.tofile(tmp_filename)
+        assert_equal(os.path.getsize(tmp_filename), d.nbytes)
+        assert_array_equal(d, np.fromfile(tmp_filename))
+        # check offset
+        with open(tmp_filename, "r+b") as f:
+            f.seek(d.nbytes)
+            d.tofile(f)
+            assert_equal(os.path.getsize(tmp_filename), d.nbytes * 2)
+        # check append mode (gh-8329)
+        open(tmp_filename, "w").close()  # delete file contents
+        with open(tmp_filename, "ab") as f:
+            d.tofile(f)
+        assert_array_equal(d, np.fromfile(tmp_filename))
+        with open(tmp_filename, "ab") as f:
+            d.tofile(f)
+        assert_equal(os.path.getsize(tmp_filename), d.nbytes * 2)
+
+    def test_io_open_buffered_fromfile(self, tmp_path, param_filename):
+        # gh-6632
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        x.tofile(tmp_filename)
+        with open(tmp_filename, 'rb', buffering=-1) as f:
+            y = np.fromfile(f, dtype=x.dtype)
+        assert_array_equal(y, x.flat)
+
+    def test_file_position_after_fromfile(self, tmp_path, param_filename):
+        # gh-4118
+        sizes = [io.DEFAULT_BUFFER_SIZE // 8,
+                 io.DEFAULT_BUFFER_SIZE,
+                 io.DEFAULT_BUFFER_SIZE * 8]
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+
+        for size in sizes:
+            with open(tmp_filename, 'wb') as f:
+                f.seek(size - 1)
+                f.write(b'\0')
+
+            for mode in ['rb', 'r+b']:
+                err_msg = "%d %s" % (size, mode)
+
+                with open(tmp_filename, mode) as f:
+                    f.read(2)
+                    np.fromfile(f, dtype=np.float64, count=1)
+                    pos = f.tell()
+                assert_equal(pos, 10, err_msg=err_msg)
+
+    def test_file_position_after_tofile(self, tmp_path, param_filename):
+        # gh-4118
+        sizes = [io.DEFAULT_BUFFER_SIZE // 8,
+                 io.DEFAULT_BUFFER_SIZE,
+                 io.DEFAULT_BUFFER_SIZE * 8]
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+
+        for size in sizes:
+            err_msg = "%d" % (size,)
+
+            with open(tmp_filename, 'wb') as f:
+                f.seek(size - 1)
+                f.write(b'\0')
+                f.seek(10)
+                f.write(b'12')
+                np.array([0], dtype=np.float64).tofile(f)
+                pos = f.tell()
+            assert_equal(pos, 10 + 2 + 8, err_msg=err_msg)
+
+            with open(tmp_filename, 'r+b') as f:
+                f.read(2)
+                f.seek(0, 1)  # seek between read&write required by ANSI C
+                np.array([0], dtype=np.float64).tofile(f)
+                pos = f.tell()
+            assert_equal(pos, 10, err_msg=err_msg)
+
+    def test_load_object_array_fromfile(self, tmp_path, param_filename):
+        # gh-12300
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        with open(tmp_filename, 'w') as f:
+            # Ensure we have a file with consistent contents
+            pass
+
+        with open(tmp_filename, 'rb') as f:
+            assert_raises_regex(ValueError, "Cannot read into object array",
+                                np.fromfile, f, dtype=object)
+
+        assert_raises_regex(ValueError, "Cannot read into object array",
+                            np.fromfile, tmp_filename, dtype=object)
+
+    def test_fromfile_offset(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+        with open(tmp_filename, 'wb') as f:
+            x.tofile(f)
+
+        with open(tmp_filename, 'rb') as f:
+            y = np.fromfile(f, dtype=x.dtype, offset=0)
+            assert_array_equal(y, x.flat)
+
+        with open(tmp_filename, 'rb') as f:
+            count_items = len(x.flat) // 8
+            offset_items = len(x.flat) // 4
+            offset_bytes = x.dtype.itemsize * offset_items
+            y = np.fromfile(
+                f, dtype=x.dtype, count=count_items, offset=offset_bytes
+            )
+            assert_array_equal(
+                y, x.flat[offset_items:offset_items + count_items]
+            )
+
+            # subsequent seeks should stack
+            offset_bytes = x.dtype.itemsize
+            z = np.fromfile(f, dtype=x.dtype, offset=offset_bytes)
+            assert_array_equal(z, x.flat[offset_items + count_items + 1:])
+
+        with open(tmp_filename, 'wb') as f:
+            x.tofile(f, sep=",")
+
+        with open(tmp_filename, 'rb') as f:
+            assert_raises_regex(
+                    TypeError,
+                    "'offset' argument only permitted for binary files",
+                    np.fromfile, tmp_filename, dtype=x.dtype,
+                    sep=",", offset=1)
+
+    @pytest.mark.skipif(IS_PYPY, reason="bug in PyPy's PyNumber_AsSsize_t")
+    def test_fromfile_bad_dup(self, tmp_path, param_filename, monkeypatch):
+        def dup_str(fd):
+            return 'abc'
+
+        def dup_bigint(fd):
+            return 2**68
+
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = self._create_data()
+
+        with open(tmp_filename, 'wb') as f:
+            x.tofile(f)
+            for dup, exc in ((dup_str, TypeError), (dup_bigint, OSError)):
+                monkeypatch.setattr(os, "dup", dup)
+                assert_raises(exc, np.fromfile, f)
+
+    def _check_from(self, s, value, filename, **kw):
+        if 'sep' not in kw:
+            y = np.frombuffer(s, **kw)
+        else:
+            y = np.fromstring(s, **kw)
+        assert_array_equal(y, value)
+
+        with open(filename, 'wb') as f:
+            f.write(s)
+        y = np.fromfile(filename, **kw)
+        assert_array_equal(y, value)
+
+    @pytest.fixture(params=["period", "comma"])
+    def decimal_sep_localization(self, request):
+        """
+        Including this fixture in a test will automatically
+        execute it with both types of decimal separator.
+
+        So::
+
+            def test_decimal(decimal_sep_localization):
+                pass
+
+        is equivalent to the following two tests::
+
+            def test_decimal_period_separator():
+                pass
+
+            def test_decimal_comma_separator():
+                with CommaDecimalPointLocale():
+                    pass
+        """
+        if request.param == "period":
+            yield
+        elif request.param == "comma":
+            with CommaDecimalPointLocale():
+                yield
+        else:
+            assert False, request.param
+
+    def test_nan(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b"nan +nan -nan NaN nan(foo) +NaN(BAR) -NAN(q_u_u_x_)",
+            [np.nan, np.nan, np.nan, np.nan, np.nan, np.nan, np.nan],
+            tmp_filename,
+            sep=' ')
+
+    def test_inf(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b"inf +inf -inf infinity -Infinity iNfInItY -inF",
+            [np.inf, np.inf, -np.inf, np.inf, -np.inf, np.inf, -np.inf],
+            tmp_filename,
+            sep=' ')
+
+    def test_numbers(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b"1.234 -1.234 .3 .3e55 -123133.1231e+133",
+            [1.234, -1.234, .3, .3e55, -123133.1231e+133],
+            tmp_filename,
+            sep=' ')
+
+    def test_binary(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b'\x00\x00\x80?\x00\x00\x00@\x00\x00@@\x00\x00\x80@',
+            np.array([1, 2, 3, 4]),
+            tmp_filename,
+            dtype='<f4')
+
+    def test_string(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(b'1,2,3,4', [1., 2., 3., 4.], tmp_filename, sep=',')
+
+    def test_counted_string(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b'1,2,3,4', [1., 2., 3., 4.], tmp_filename, count=4, sep=',')
+        self._check_from(
+            b'1,2,3,4', [1., 2., 3.], tmp_filename, count=3, sep=',')
+        self._check_from(
+            b'1,2,3,4', [1., 2., 3., 4.], tmp_filename, count=-1, sep=',')
+
+    def test_string_with_ws(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b'1 2  3     4   ', [1, 2, 3, 4], tmp_filename, dtype=int, sep=' ')
+
+    def test_counted_string_with_ws(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b'1 2  3     4   ', [1, 2, 3], tmp_filename, count=3, dtype=int,
+            sep=' ')
+
+    def test_ascii(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b'1 , 2 , 3 , 4', [1., 2., 3., 4.], tmp_filename, sep=',')
+        self._check_from(
+            b'1,2,3,4', [1., 2., 3., 4.], tmp_filename, dtype=float, sep=',')
+
+    def test_malformed(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        with assert_raises(ValueError):
+            self._check_from(
+                b'1.234 1,234', [1.234, 1.], tmp_filename, sep=' ')
+
+    def test_long_sep(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        self._check_from(
+            b'1_x_3_x_4_x_5', [1, 3, 4, 5], tmp_filename, sep='_x_')
+
+    def test_dtype(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        v = np.array([1, 2, 3, 4], dtype=np.int_)
+        self._check_from(b'1,2,3,4', v, tmp_filename, sep=',', dtype=np.int_)
+
+    def test_dtype_bool(self, tmp_path, param_filename):
+        # can't use _check_from because fromstring can't handle True/False
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        v = np.array([True, False, True, False], dtype=np.bool)
+        s = b'1,0,-2.3,0'
+        with open(tmp_filename, 'wb') as f:
+            f.write(s)
+        y = np.fromfile(tmp_filename, sep=',', dtype=np.bool)
+        assert_(y.dtype == '?')
+        assert_array_equal(y, v)
+
+    def test_tofile_sep(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = np.array([1.51, 2, 3.51, 4], dtype=float)
+        with open(tmp_filename, 'w') as f:
+            x.tofile(f, sep=',')
+        with open(tmp_filename, 'r') as f:
+            s = f.read()
+        #assert_equal(s, '1.51,2.0,3.51,4.0')
+        y = np.array([float(p) for p in s.split(',')])
+        assert_array_equal(x, y)
+
+    def test_tofile_format(self, tmp_path, param_filename, decimal_sep_localization):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = np.array([1.51, 2, 3.51, 4], dtype=float)
+        with open(tmp_filename, 'w') as f:
+            x.tofile(f, sep=',', format='%.2f')
+        with open(tmp_filename, 'r') as f:
+            s = f.read()
+        assert_equal(s, '1.51,2.00,3.51,4.00')
+
+    def test_tofile_cleanup(self, tmp_path, param_filename):
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = np.zeros((10), dtype=object)
+        with open(tmp_filename, 'wb') as f:
+            assert_raises(OSError, lambda: x.tofile(f, sep=''))
+        # Dup-ed file handle should be closed or remove will fail on Windows OS
+        os.remove(tmp_filename)
+
+        # Also make sure that we close the Python handle
+        assert_raises(OSError, lambda: x.tofile(tmp_filename))
+        os.remove(tmp_filename)
+
+    def test_fromfile_subarray_binary(self, tmp_path, param_filename):
+        # Test subarray dtypes which are absorbed into the shape
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        x = np.arange(24, dtype="i4").reshape(2, 3, 4)
+        x.tofile(tmp_filename)
+        res = np.fromfile(tmp_filename, dtype="(3,4)i4")
+        assert_array_equal(x, res)
+
+        x_str = x.tobytes()
+        with pytest.raises(ValueError):
+            # binary fromstring raises
+            np.fromstring(x_str, dtype="(3,4)i4")
+
+    def test_parsing_subarray_unsupported(self, tmp_path, param_filename):
+        # We currently do not support parsing subarray dtypes
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        data = "12,42,13," * 50
+        with pytest.raises(ValueError):
+            expected = np.fromstring(data, dtype="(3,)i", sep=",")
+
+        with open(tmp_filename, "w") as f:
+            f.write(data)
+
+        with pytest.raises(ValueError):
+            np.fromfile(tmp_filename, dtype="(3,)i", sep=",")
+
+    def test_read_shorter_than_count_subarray(self, tmp_path, param_filename):
+        # Test that requesting more values does not cause any problems
+        # in conjunction with subarray dimensions being absorbed into the
+        # array dimension.
+        tmp_filename = normalize_filename(tmp_path, param_filename)
+        expected = np.arange(511 * 10, dtype="i").reshape(-1, 10)
+
+        binary = expected.tobytes()
+        with pytest.raises(ValueError):
+            np.fromstring(binary, dtype="(10,)i", count=10000)
+
+        expected.tofile(tmp_filename)
+        res = np.fromfile(tmp_filename, dtype="(10,)i", count=10000)
+        assert_array_equal(res, expected)
+
+
+class TestFromBuffer:
+    @pytest.mark.parametrize('byteorder', ['<', '>'])
+    @pytest.mark.parametrize('dtype', [float, int, complex])
+    def test_basic(self, byteorder, dtype):
+        dt = np.dtype(dtype).newbyteorder(byteorder)
+        x = (np.random.random((4, 7)) * 5).astype(dt)
+        buf = x.tobytes()
+        assert_array_equal(np.frombuffer(buf, dtype=dt), x.flat)
+
+    @pytest.mark.parametrize("obj", [np.arange(10), b"12345678"])
+    def test_array_base(self, obj):
+        # Objects (including NumPy arrays), which do not use the
+        # `release_buffer` slot should be directly used as a base object.
+        # See also gh-21612
+        new = np.frombuffer(obj)
+        assert new.base is obj
+
+    def test_empty(self):
+        assert_array_equal(np.frombuffer(b''), np.array([]))
+
+    @pytest.mark.skipif(IS_PYPY,
+            reason="PyPy's memoryview currently does not track exports. See: "
+                   "https://foss.heptapod.net/pypy/pypy/-/issues/3724")
+    def test_mmap_close(self):
+        # The old buffer protocol was not safe for some things that the new
+        # one is.  But `frombuffer` always used the old one for a long time.
+        # Checks that it is safe with the new one (using memoryviews)
+        with tempfile.TemporaryFile(mode='wb') as tmp:
+            tmp.write(b"asdf")
+            tmp.flush()
+            mm = mmap.mmap(tmp.fileno(), 0)
+            arr = np.frombuffer(mm, dtype=np.uint8)
+            with pytest.raises(BufferError):
+                mm.close()  # cannot close while array uses the buffer
+            del arr
+            mm.close()
+
+class TestFlat:
+    def _create_arrays(self):
+        a = np.arange(20.0).reshape(4, 5)
+        a.flags.writeable = False
+        b = a[::2, ::2]
+        return a, b
+
+    def test_contiguous(self):
+        testpassed = False
+        a, _ = self._create_arrays()
+        try:
+            a.flat[12] = 100.0
+        except ValueError:
+            testpassed = True
+        assert_(testpassed)
+        assert_(a.flat[12] == 12.0)
+
+    def test_discontiguous(self):
+        testpassed = False
+        _, b = self._create_arrays()
+        try:
+            b.flat[4] = 100.0
+        except ValueError:
+            testpassed = True
+        assert_(testpassed)
+        assert_(b.flat[4] == 12.0)
+
+    def test___array__(self):
+        a0 = np.arange(20.0)
+        a = a0.reshape(4, 5)
+        a0 = a0.reshape((4, 5))
+        a.flags.writeable = False
+        b = a[::2, ::2]
+        b0 = a0[::2, ::2]
+        c = a.flat.__array__()
+        d = b.flat.__array__()
+        e = a0.flat.__array__()
+        f = b0.flat.__array__()
+
+        assert_(c.flags.writeable is False)
+        assert_(d.flags.writeable is False)
+        assert_(e.flags.writeable is True)
+        assert_(f.flags.writeable is False)
+        assert_(c.flags.writebackifcopy is False)
+        assert_(d.flags.writebackifcopy is False)
+        assert_(e.flags.writebackifcopy is False)
+        assert_(f.flags.writebackifcopy is False)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_refcount(self):
+        # includes regression test for reference count error gh-13165
+        a, _ = self._create_arrays()
+        inds = [np.intp(0), np.array([True] * a.size), np.array([0]), None]
+        indtype = np.dtype(np.intp)
+        rc_indtype = sys.getrefcount(indtype)
+        for ind in inds:
+            rc_ind = sys.getrefcount(ind)
+            for _ in range(100):
+                try:
+                    a.flat[ind]
+                except IndexError:
+                    pass
+            assert_(abs(sys.getrefcount(ind) - rc_ind) < 50)
+            assert_(abs(sys.getrefcount(indtype) - rc_indtype) < 50)
+
+    def test_index_getset(self):
+        it = np.arange(10).reshape(2, 1, 5).flat
+        with pytest.raises(AttributeError):
+            it.index = 10
+
+        for _ in it:
+            pass
+        # Check the value of `.index` is updated correctly (see also gh-19153)
+        # If the type was incorrect, this would show up on big-endian machines
+        assert it.index == it.base.size
+
+    def test_maxdims(self):
+        # The flat iterator and thus attribute is currently unfortunately
+        # limited to only 32 dimensions (after bumping it to 64 for 2.0)
+        a = np.ones((1,) * 64)
+
+        with pytest.raises(RuntimeError,
+                match=".*32 dimensions but the array has 64"):
+            a.flat
+
+
+class TestResize:
+
+    @_no_tracing
+    def test_basic(self):
+        x = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
+        if IS_PYPY:
+            x.resize((5, 5), refcheck=False)
+        else:
+            x.resize((5, 5))
+        assert_array_equal(x.flat[:9],
+                np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]]).flat)
+        assert_array_equal(x[9:].flat, 0)
+
+    def test_check_reference(self):
+        x = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
+        y = x
+        assert_raises(ValueError, x.resize, (5, 1))
+
+    @pytest.mark.skipif(IS_WASM, reason="Cannot start subprocess")
+    @pytest.mark.skipif(IS_PYPY, reason="The method always raises")
+    def test_check_reference_module_scope(self):
+        code = textwrap.dedent("""
+            import numpy as np
+
+            # See gh-30991
+            a = np.array([[0, 1], [2, 3]], order='C')
+            a.resize((2, 1))
+        """)
+        try:
+            subprocess.check_output([sys.executable, "-c", code],
+                                    stderr=subprocess.STDOUT, text=True)
+        except subprocess.CalledProcessError as e:
+            assert sys.version_info >= (3, 14)
+            assert "ValueError" in e.stdout
+            assert "It is possible that this is a false positive." in e.stdout
+        else:
+            if sys.version_info >= (3, 14):
+                raise AssertionError("Unexpected success of resize refcheck")
+
+    def test_check_reference_2(self):
+        # see gh-30265
+        x = np.zeros((2, 2))
+        y = x
+        with pytest.raises(ValueError):
+            x.resize((5, 5))
+
+    @_no_tracing
+    def test_int_shape(self):
+        x = np.eye(3)
+        if IS_PYPY:
+            x.resize(3, refcheck=False)
+        else:
+            x.resize(3)
+        assert_array_equal(x, np.eye(3)[0, :])
+
+    def test_none_shape(self):
+        x = np.eye(3)
+        x.resize(None)
+        assert_array_equal(x, np.eye(3))
+        x.resize()
+        assert_array_equal(x, np.eye(3))
+
+    def test_0d_shape(self):
+        # to it multiple times to test it does not break alloc cache gh-9216
+        for i in range(10):
+            x = np.empty((1,))
+            x.resize(())
+            assert_equal(x.shape, ())
+            assert_equal(x.size, 1)
+            x = np.empty(())
+            x.resize((1,))
+            assert_equal(x.shape, (1,))
+            assert_equal(x.size, 1)
+
+    def test_invalid_arguments(self):
+        assert_raises(TypeError, np.eye(3).resize, 'hi')
+        assert_raises(ValueError, np.eye(3).resize, -1)
+        assert_raises(TypeError, np.eye(3).resize, order=1)
+        assert_raises(TypeError, np.eye(3).resize, refcheck='hi')
+
+    @_no_tracing
+    def test_freeform_shape(self):
+        x = np.eye(3)
+        if IS_PYPY:
+            x.resize(3, 2, 1, refcheck=False)
+        else:
+            x.resize(3, 2, 1)
+        assert_(x.shape == (3, 2, 1))
+
+    @_no_tracing
+    def test_zeros_appended(self):
+        x = np.eye(3)
+        if IS_PYPY:
+            x.resize(2, 3, 3, refcheck=False)
+        else:
+            x.resize(2, 3, 3)
+        assert_array_equal(x[0], np.eye(3))
+        assert_array_equal(x[1], np.zeros((3, 3)))
+
+    @_no_tracing
+    def test_obj_obj(self):
+        # check memory is initialized on resize, gh-4857
+        a = np.ones(10, dtype=[('k', object, 2)])
+        if IS_PYPY:
+            a.resize(15, refcheck=False)
+        else:
+            a.resize(15,)
+        assert_equal(a.shape, (15,))
+        assert_array_equal(a['k'][-5:], 0)
+        assert_array_equal(a['k'][:-5], 1)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    @pytest.mark.parametrize("dtype", ["O", "O,O"])
+    def test_obj_obj_shrinking(self, dtype):
+        # check that memory is freed when shrinking an array.
+        test_obj = object()
+        expected = sys.getrefcount(test_obj)
+        a = np.array([test_obj, test_obj, test_obj], dtype=dtype)
+        assert a.size == 3
+        a.resize((2, 1))  # two elements, not three!
+        assert a.size == 2
+        del a
+        # if all is well, then we reclaimed all references
+        assert sys.getrefcount(test_obj) == expected
+
+    def test_empty_view(self):
+        # check that sizes containing a zero don't trigger a reallocate for
+        # already empty arrays
+        x = np.zeros((10, 0), int)
+        x_view = x[...]
+        x_view.resize((0, 10))
+        x_view.resize((0, 100))
+
+    def test_check_weakref(self):
+        x = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]])
+        xref = weakref.ref(x)
+        assert_raises(ValueError, x.resize, (5, 1))
+
+
+class TestRecord:
+    def test_field_rename(self):
+        dt = np.dtype([('f', float), ('i', int)])
+        dt.names = ['p', 'q']
+        assert_equal(dt.names, ['p', 'q'])
+
+    def test_multiple_field_name_occurrence(self):
+        def test_dtype_init():
+            np.dtype([("A", "f8"), ("B", "f8"), ("A", "f8")])
+
+        # Error raised when multiple fields have the same name
+        assert_raises(ValueError, test_dtype_init)
+
+    def test_bytes_fields(self):
+        # Bytes are not allowed in field names and not recognized in titles
+        # on Py3
+        assert_raises(TypeError, np.dtype, [(b'a', int)])
+        assert_raises(TypeError, np.dtype, [(('b', b'a'), int)])
+
+        dt = np.dtype([((b'a', 'b'), int)])
+        assert_raises(TypeError, dt.__getitem__, b'a')
+
+        x = np.array([(1,), (2,), (3,)], dtype=dt)
+        assert_raises(IndexError, x.__getitem__, b'a')
+
+        y = x[0]
+        assert_raises(IndexError, y.__getitem__, b'a')
+
+    def test_multiple_field_name_unicode(self):
+        def test_dtype_unicode():
+            np.dtype([("\u20B9", "f8"), ("B", "f8"), ("\u20B9", "f8")])
+
+        # Error raised when multiple fields have the same name(unicode included)
+        assert_raises(ValueError, test_dtype_unicode)
+
+    def test_fromarrays_unicode(self):
+        # A single name string provided to fromarrays() is allowed to be unicode
+        x = np._core.records.fromarrays(
+            [[0], [1]], names='a,b', formats='i4,i4')
+        assert_equal(x['a'][0], 0)
+        assert_equal(x['b'][0], 1)
+
+    def test_unicode_order(self):
+        # Test that we can sort with order as a unicode field name
+        name = 'b'
+        x = np.array([1, 3, 2], dtype=[(name, int)])
+        x.sort(order=name)
+        assert_equal(x['b'], np.array([1, 2, 3]))
+
+    def test_field_names(self):
+        # Test unicode and 8-bit / byte strings can be used
+        a = np.zeros((1,), dtype=[('f1', 'i4'),
+                                  ('f2', 'i4'),
+                                  ('f3', [('sf1', 'i4')])])
+        # byte string indexing fails gracefully
+        assert_raises(IndexError, a.__setitem__, b'f1', 1)
+        assert_raises(IndexError, a.__getitem__, b'f1')
+        assert_raises(IndexError, a['f1'].__setitem__, b'sf1', 1)
+        assert_raises(IndexError, a['f1'].__getitem__, b'sf1')
+        b = a.copy()
+        fn1 = 'f1'
+        b[fn1] = 1
+        assert_equal(b[fn1], 1)
+        fnn = 'not at all'
+        assert_raises(ValueError, b.__setitem__, fnn, 1)
+        assert_raises(ValueError, b.__getitem__, fnn)
+        b[0][fn1] = 2
+        assert_equal(b[fn1], 2)
+        # Subfield
+        assert_raises(ValueError, b[0].__setitem__, fnn, 1)
+        assert_raises(ValueError, b[0].__getitem__, fnn)
+        # Subfield
+        fn3 = 'f3'
+        sfn1 = 'sf1'
+        b[fn3][sfn1] = 1
+        assert_equal(b[fn3][sfn1], 1)
+        assert_raises(ValueError, b[fn3].__setitem__, fnn, 1)
+        assert_raises(ValueError, b[fn3].__getitem__, fnn)
+        # multiple subfields
+        fn2 = 'f2'
+        b[fn2] = 3
+
+        assert_equal(b[['f1', 'f2']][0].tolist(), (2, 3))
+        assert_equal(b[['f2', 'f1']][0].tolist(), (3, 2))
+        assert_equal(b[['f1', 'f3']][0].tolist(), (2, (1,)))
+
+        # non-ascii unicode field indexing is well behaved
+        assert_raises(ValueError, a.__setitem__, '\u03e0', 1)
+        assert_raises(ValueError, a.__getitem__, '\u03e0')
+
+    def test_record_hash(self):
+        a = np.array([(1, 2), (1, 2)], dtype='i1,i2')
+        a.flags.writeable = False
+        b = np.array([(1, 2), (3, 4)], dtype=[('num1', 'i1'), ('num2', 'i2')])
+        b.flags.writeable = False
+        c = np.array([(1, 2), (3, 4)], dtype='i1,i2')
+        c.flags.writeable = False
+        assert_(hash(a[0]) == hash(a[1]))
+        assert_(hash(a[0]) == hash(b[0]))
+        assert_(hash(a[0]) != hash(b[1]))
+        assert_(hash(c[0]) == hash(a[0]) and c[0] == a[0])
+
+    def test_record_no_hash(self):
+        a = np.array([(1, 2), (1, 2)], dtype='i1,i2')
+        assert_raises(TypeError, hash, a[0])
+
+    def test_empty_structure_creation(self):
+        # make sure these do not raise errors (gh-5631)
+        np.array([()], dtype={'names': [], 'formats': [],
+                           'offsets': [], 'itemsize': 12})
+        np.array([(), (), (), (), ()], dtype={'names': [], 'formats': [],
+                                           'offsets': [], 'itemsize': 12})
+
+    def test_multifield_indexing_view(self):
+        a = np.ones(3, dtype=[('a', 'i4'), ('b', 'f4'), ('c', 'u4')])
+        v = a[['a', 'c']]
+        assert_(v.base is a)
+        assert_(v.dtype == np.dtype({'names': ['a', 'c'],
+                                     'formats': ['i4', 'u4'],
+                                     'offsets': [0, 8]}))
+        v[:] = (4, 5)
+        assert_equal(a[0].item(), (4, 1, 5))
+
+class TestView:
+    def test_basic(self):
+        x = np.array([(1, 2, 3, 4), (5, 6, 7, 8)],
+                     dtype=[('r', np.int8), ('g', np.int8),
+                            ('b', np.int8), ('a', np.int8)])
+        # We must be specific about the endianness here:
+        y = x.view(dtype='<i4')
+        # ... and again without the keyword.
+        z = x.view('<i4')
+        assert_array_equal(y, z)
+        assert_array_equal(y, [67305985, 134678021])
+
+
+def _mean(a, **args):
+    return a.mean(**args)
+
+
+def _var(a, **args):
+    return a.var(**args)
+
+
+def _std(a, **args):
+    return a.std(**args)
+
+
+class TestStats:
+
+    funcs = [_mean, _var, _std]
+
+    def _create_data(self):
+        rng = np.random.default_rng(range(3))
+        rmat = rng.random((4, 5))
+        cmat = rmat + 1j * rmat
+        omat = np.array([Decimal(str(r)) for r in rmat.flat]).reshape(4, 5)
+        return rmat, cmat, omat
+
+    def test_python_type(self):
+        for x in (np.float16(1.), 1, 1., 1 + 0j):
+            assert_equal(np.mean([x]), 1.)
+            assert_equal(np.std([x]), 0.)
+            assert_equal(np.var([x]), 0.)
+
+    def test_keepdims(self):
+        mat = np.eye(3)
+        for f in self.funcs:
+            for axis in [0, 1]:
+                res = f(mat, axis=axis, keepdims=True)
+                assert_(res.ndim == mat.ndim)
+                assert_(res.shape[axis] == 1)
+            for axis in [None]:
+                res = f(mat, axis=axis, keepdims=True)
+                assert_(res.shape == (1, 1))
+
+    def test_out(self):
+        mat = np.eye(3)
+        for f in self.funcs:
+            out = np.zeros(3)
+            tgt = f(mat, axis=1)
+            res = f(mat, axis=1, out=out)
+            assert_almost_equal(res, out)
+            assert_almost_equal(res, tgt)
+        out = np.empty(2)
+        assert_raises(ValueError, f, mat, axis=1, out=out)
+        out = np.empty((2, 2))
+        assert_raises(ValueError, f, mat, axis=1, out=out)
+
+    def test_dtype_from_input(self):
+
+        icodes = np.typecodes['AllInteger']
+        fcodes = np.typecodes['AllFloat']
+
+        # object type
+        for f in self.funcs:
+            mat = np.array([[Decimal(1)] * 3] * 3)
+            tgt = mat.dtype.type
+            res = f(mat, axis=1).dtype.type
+            assert_(res is tgt)
+            # scalar case
+            res = type(f(mat, axis=None))
+            assert_(res is Decimal)
+
+        # integer types
+        for f in self.funcs:
+            for c in icodes:
+                mat = np.eye(3, dtype=c)
+                tgt = np.float64
+                res = f(mat, axis=1).dtype.type
+                assert_(res is tgt)
+                # scalar case
+                res = f(mat, axis=None).dtype.type
+                assert_(res is tgt)
+
+        # mean for float types
+        for f in [_mean]:
+            for c in fcodes:
+                mat = np.eye(3, dtype=c)
+                tgt = mat.dtype.type
+                res = f(mat, axis=1).dtype.type
+                assert_(res is tgt)
+                # scalar case
+                res = f(mat, axis=None).dtype.type
+                assert_(res is tgt)
+
+        # var, std for float types
+        for f in [_var, _std]:
+            for c in fcodes:
+                mat = np.eye(3, dtype=c)
+                # deal with complex types
+                tgt = mat.real.dtype.type
+                res = f(mat, axis=1).dtype.type
+                assert_(res is tgt)
+                # scalar case
+                res = f(mat, axis=None).dtype.type
+                assert_(res is tgt)
+
+    def test_dtype_from_dtype(self):
+        mat = np.eye(3)
+
+        # stats for integer types
+        # FIXME:
+        # this needs definition as there are lots places along the line
+        # where type casting may take place.
+
+        # for f in self.funcs:
+        #    for c in np.typecodes['AllInteger']:
+        #        tgt = np.dtype(c).type
+        #        res = f(mat, axis=1, dtype=c).dtype.type
+        #        assert_(res is tgt)
+        #        # scalar case
+        #        res = f(mat, axis=None, dtype=c).dtype.type
+        #        assert_(res is tgt)
+
+        # stats for float types
+        for f in self.funcs:
+            for c in np.typecodes['AllFloat']:
+                tgt = np.dtype(c).type
+                res = f(mat, axis=1, dtype=c).dtype.type
+                assert_(res is tgt)
+                # scalar case
+                res = f(mat, axis=None, dtype=c).dtype.type
+                assert_(res is tgt)
+
+    def test_ddof(self):
+        rmat, _, _ = self._create_data()
+        for f in [_var]:
+            for ddof in range(3):
+                dim = rmat.shape[1]
+                tgt = f(rmat, axis=1) * dim
+                res = f(rmat, axis=1, ddof=ddof) * (dim - ddof)
+        for f in [_std]:
+            for ddof in range(3):
+                dim = rmat.shape[1]
+                tgt = f(rmat, axis=1) * np.sqrt(dim)
+                res = f(rmat, axis=1, ddof=ddof) * np.sqrt(dim - ddof)
+                assert_almost_equal(res, tgt)
+                assert_almost_equal(res, tgt)
+
+    def test_ddof_too_big(self):
+        rmat, _, _ = self._create_data()
+        dim = rmat.shape[1]
+        for f in [_var, _std]:
+            for ddof in range(dim, dim + 2):
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter('always')
+                    res = f(rmat, axis=1, ddof=ddof)
+                    assert_(not (res < 0).any())
+                    assert_(len(w) > 0)
+                    assert_(issubclass(w[0].category, RuntimeWarning))
+
+    def test_empty(self):
+        A = np.zeros((0, 3))
+        for f in self.funcs:
+            for axis in [0, None]:
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter('always')
+                    assert_(np.isnan(f(A, axis=axis)).all())
+                    assert_(len(w) > 0)
+                    assert_(issubclass(w[0].category, RuntimeWarning))
+            for axis in [1]:
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter('always')
+                    assert_equal(f(A, axis=axis), np.zeros([]))
+
+    def test_mean_values(self):
+        rmat, cmat, omat = self._create_data()
+        for mat in [rmat, cmat, omat]:
+            for axis in [0, 1]:
+                tgt = mat.sum(axis=axis)
+                res = _mean(mat, axis=axis) * mat.shape[axis]
+                assert_almost_equal(res, tgt)
+            for axis in [None]:
+                tgt = mat.sum(axis=axis)
+                res = _mean(mat, axis=axis) * np.prod(mat.shape)
+                assert_almost_equal(res, tgt)
+
+    def test_mean_float16(self):
+        # This fail if the sum inside mean is done in float16 instead
+        # of float32.
+        assert_(_mean(np.ones(100000, dtype='float16')) == 1)
+
+    def test_mean_axis_error(self):
+        # Ensure that AxisError is raised instead of IndexError when axis is
+        # out of bounds, see gh-15817.
+        with assert_raises(np.exceptions.AxisError):
+            np.arange(10).mean(axis=2)
+
+    def test_mean_where(self):
+        a = np.arange(16).reshape((4, 4))
+        wh_full = np.array([[False, True, False, True],
+                            [True, False, True, False],
+                            [True, True, False, False],
+                            [False, False, True, True]])
+        wh_partial = np.array([[False],
+                               [True],
+                               [True],
+                               [False]])
+        _cases = [(1, True, [1.5, 5.5, 9.5, 13.5]),
+                  (0, wh_full, [6., 5., 10., 9.]),
+                  (1, wh_full, [2., 5., 8.5, 14.5]),
+                  (0, wh_partial, [6., 7., 8., 9.])]
+        for _ax, _wh, _res in _cases:
+            assert_allclose(a.mean(axis=_ax, where=_wh),
+                            np.array(_res))
+            assert_allclose(np.mean(a, axis=_ax, where=_wh),
+                            np.array(_res))
+
+        a3d = np.arange(16).reshape((2, 2, 4))
+        _wh_partial = np.array([False, True, True, False])
+        _res = [[1.5, 5.5], [9.5, 13.5]]
+        assert_allclose(a3d.mean(axis=2, where=_wh_partial),
+                        np.array(_res))
+        assert_allclose(np.mean(a3d, axis=2, where=_wh_partial),
+                        np.array(_res))
+
+        with pytest.warns(RuntimeWarning) as w:
+            assert_allclose(a.mean(axis=1, where=wh_partial),
+                            np.array([np.nan, 5.5, 9.5, np.nan]))
+        with pytest.warns(RuntimeWarning) as w:
+            assert_equal(a.mean(where=False), np.nan)
+        with pytest.warns(RuntimeWarning) as w:
+            assert_equal(np.mean(a, where=False), np.nan)
+
+    def test_var_values(self):
+        rmat, cmat, omat = self._create_data()
+        for mat in [rmat, cmat, omat]:
+            for axis in [0, 1, None]:
+                msqr = _mean(mat * mat.conj(), axis=axis)
+                mean = _mean(mat, axis=axis)
+                tgt = msqr - mean * mean.conjugate()
+                res = _var(mat, axis=axis)
+                assert_almost_equal(res, tgt)
+
+    @pytest.mark.parametrize(('complex_dtype', 'ndec'), (
+        ('complex64', 6),
+        ('complex128', 7),
+        ('clongdouble', 7),
+    ))
+    def test_var_complex_values(self, complex_dtype, ndec):
+        _, cmat, _ = self._create_data()
+        # Test fast-paths for every builtin complex type
+        for axis in [0, 1, None]:
+            mat = cmat.copy().astype(complex_dtype)
+            msqr = _mean(mat * mat.conj(), axis=axis)
+            mean = _mean(mat, axis=axis)
+            tgt = msqr - mean * mean.conjugate()
+            res = _var(mat, axis=axis)
+            assert_almost_equal(res, tgt, decimal=ndec)
+
+    def test_var_dimensions(self):
+        # _var paths for complex number introduce additions on views that
+        # increase dimensions. Ensure this generalizes to higher dims
+        _, cmat, _ = self._create_data()
+        mat = np.stack([cmat] * 3)
+        for axis in [0, 1, 2, -1, None]:
+            msqr = _mean(mat * mat.conj(), axis=axis)
+            mean = _mean(mat, axis=axis)
+            tgt = msqr - mean * mean.conjugate()
+            res = _var(mat, axis=axis)
+            assert_almost_equal(res, tgt)
+
+    def test_var_complex_byteorder(self):
+        # Test that var fast-path does not cause failures for complex arrays
+        # with non-native byteorder
+        _, cmat, _ = self._create_data()
+        cmat = cmat.copy().astype('complex128')
+        cmat_swapped = cmat.astype(cmat.dtype.newbyteorder())
+        assert_almost_equal(cmat.var(), cmat_swapped.var())
+
+    def test_var_axis_error(self):
+        # Ensure that AxisError is raised instead of IndexError when axis is
+        # out of bounds, see gh-15817.
+        with assert_raises(np.exceptions.AxisError):
+            np.arange(10).var(axis=2)
+
+    def test_var_where(self):
+        a = np.arange(25).reshape((5, 5))
+        wh_full = np.array([[False, True, False, True, True],
+                            [True, False, True, True, False],
+                            [True, True, False, False, True],
+                            [False, True, True, False, True],
+                            [True, False, True, True, False]])
+        wh_partial = np.array([[False],
+                               [True],
+                               [True],
+                               [False],
+                               [True]])
+        _cases = [(0, True, [50., 50., 50., 50., 50.]),
+                  (1, True, [2., 2., 2., 2., 2.])]
+        for _ax, _wh, _res in _cases:
+            assert_allclose(a.var(axis=_ax, where=_wh),
+                            np.array(_res))
+            assert_allclose(np.var(a, axis=_ax, where=_wh),
+                            np.array(_res))
+
+        a3d = np.arange(16).reshape((2, 2, 4))
+        _wh_partial = np.array([False, True, True, False])
+        _res = [[0.25, 0.25], [0.25, 0.25]]
+        assert_allclose(a3d.var(axis=2, where=_wh_partial),
+                        np.array(_res))
+        assert_allclose(np.var(a3d, axis=2, where=_wh_partial),
+                        np.array(_res))
+
+        assert_allclose(np.var(a, axis=1, where=wh_full),
+                        np.var(a[wh_full].reshape((5, 3)), axis=1))
+        assert_allclose(np.var(a, axis=0, where=wh_partial),
+                        np.var(a[wh_partial[:, 0]], axis=0))
+        with pytest.warns(RuntimeWarning) as w:
+            assert_equal(a.var(where=False), np.nan)
+        with pytest.warns(RuntimeWarning) as w:
+            assert_equal(np.var(a, where=False), np.nan)
+
+    def test_std_values(self):
+        rmat, cmat, omat = self._create_data()
+        for mat in [rmat, cmat, omat]:
+            for axis in [0, 1, None]:
+                tgt = np.sqrt(_var(mat, axis=axis))
+                res = _std(mat, axis=axis)
+                assert_almost_equal(res, tgt)
+
+    def test_std_where(self):
+        a = np.arange(25).reshape((5, 5))[::-1]
+        whf = np.array([[False, True, False, True, True],
+                        [True, False, True, False, True],
+                        [True, True, False, True, False],
+                        [True, False, True, True, False],
+                        [False, True, False, True, True]])
+        whp = np.array([[False],
+                        [False],
+                        [True],
+                        [True],
+                        [False]])
+        _cases = [
+            (0, True, 7.07106781 * np.ones(5)),
+            (1, True, 1.41421356 * np.ones(5)),
+            (0, whf,
+             np.array([4.0824829, 8.16496581, 5., 7.39509973, 8.49836586])),
+            (0, whp, 2.5 * np.ones(5))
+        ]
+        for _ax, _wh, _res in _cases:
+            assert_allclose(a.std(axis=_ax, where=_wh), _res)
+            assert_allclose(np.std(a, axis=_ax, where=_wh), _res)
+
+        a3d = np.arange(16).reshape((2, 2, 4))
+        _wh_partial = np.array([False, True, True, False])
+        _res = [[0.5, 0.5], [0.5, 0.5]]
+        assert_allclose(a3d.std(axis=2, where=_wh_partial),
+                        np.array(_res))
+        assert_allclose(np.std(a3d, axis=2, where=_wh_partial),
+                        np.array(_res))
+
+        assert_allclose(a.std(axis=1, where=whf),
+                        np.std(a[whf].reshape((5, 3)), axis=1))
+        assert_allclose(np.std(a, axis=1, where=whf),
+                        (a[whf].reshape((5, 3))).std(axis=1))
+        assert_allclose(a.std(axis=0, where=whp),
+                        np.std(a[whp[:, 0]], axis=0))
+        assert_allclose(np.std(a, axis=0, where=whp),
+                        (a[whp[:, 0]]).std(axis=0))
+        with pytest.warns(RuntimeWarning) as w:
+            assert_equal(a.std(where=False), np.nan)
+        with pytest.warns(RuntimeWarning) as w:
+            assert_equal(np.std(a, where=False), np.nan)
+
+    def test_subclass(self):
+        class TestArray(np.ndarray):
+            def __new__(cls, data, info):
+                result = np.array(data)
+                result = result.view(cls)
+                result.info = info
+                return result
+
+            def __array_finalize__(self, obj):
+                self.info = getattr(obj, "info", '')
+
+        dat = TestArray([[1, 2, 3, 4], [5, 6, 7, 8]], 'jubba')
+        res = dat.mean(1)
+        assert_(res.info == dat.info)
+        res = dat.std(1)
+        assert_(res.info == dat.info)
+        res = dat.var(1)
+        assert_(res.info == dat.info)
+
+
+class TestVdot:
+    def test_basic(self):
+        dt_numeric = np.typecodes['AllFloat'] + np.typecodes['AllInteger']
+        dt_complex = np.typecodes['Complex']
+
+        # test real
+        a = np.eye(3)
+        for dt in dt_numeric + 'O':
+            b = a.astype(dt)
+            res = np.vdot(b, b)
+            assert_(np.isscalar(res))
+            assert_equal(np.vdot(b, b), 3)
+
+        # test complex
+        a = np.eye(3) * 1j
+        for dt in dt_complex + 'O':
+            b = a.astype(dt)
+            res = np.vdot(b, b)
+            assert_(np.isscalar(res))
+            assert_equal(np.vdot(b, b), 3)
+
+        # test boolean
+        b = np.eye(3, dtype=bool)
+        res = np.vdot(b, b)
+        assert_(np.isscalar(res))
+        assert_equal(np.vdot(b, b), True)
+
+    def test_vdot_array_order(self):
+        a = np.array([[1, 2], [3, 4]], order='C')
+        b = np.array([[1, 2], [3, 4]], order='F')
+        res = np.vdot(a, a)
+
+        # integer arrays are exact
+        assert_equal(np.vdot(a, b), res)
+        assert_equal(np.vdot(b, a), res)
+        assert_equal(np.vdot(b, b), res)
+
+    def test_vdot_uncontiguous(self):
+        for size in [2, 1000]:
+            # Different sizes match different branches in vdot.
+            a = np.zeros((size, 2, 2))
+            b = np.zeros((size, 2, 2))
+            a[:, 0, 0] = np.arange(size)
+            b[:, 0, 0] = np.arange(size) + 1
+            # Make a and b uncontiguous:
+            a = a[..., 0]
+            b = b[..., 0]
+
+            assert_equal(np.vdot(a, b),
+                         np.vdot(a.flatten(), b.flatten()))
+            assert_equal(np.vdot(a, b.copy()),
+                         np.vdot(a.flatten(), b.flatten()))
+            assert_equal(np.vdot(a.copy(), b),
+                         np.vdot(a.flatten(), b.flatten()))
+            assert_equal(np.vdot(a.copy('F'), b),
+                         np.vdot(a.flatten(), b.flatten()))
+            assert_equal(np.vdot(a, b.copy('F')),
+                         np.vdot(a.flatten(), b.flatten()))
+
+
+class TestDot:
+    N = 7
+
+    def _create_data(self):
+        rng = np.random.RandomState(128)
+        A = rng.random((4, 2))
+        b1 = rng.random((2, 1))
+        b2 = rng.random(2)
+        b3 = rng.random((1, 2))
+        b4 = rng.random(4)
+        return A, b1, b2, b3, b4
+
+    def test_dotmatmat(self):
+        A, _, _, _, _ = self._create_data()
+        res = np.dot(A.transpose(), A)
+        tgt = np.array([[1.45046013, 0.86323640],
+                        [0.86323640, 0.84934569]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotmatvec(self):
+        A, b1, _, _, _ = self._create_data()
+        res = np.dot(A, b1)
+        tgt = np.array([[0.32114320], [0.04889721],
+                        [0.15696029], [0.33612621]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotmatvec2(self):
+        A, _, b2, _, _ = self._create_data()
+        res = np.dot(A, b2)
+        tgt = np.array([0.29677940, 0.04518649, 0.14468333, 0.31039293])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecmat(self):
+        A, _, _, _, b4 = self._create_data()
+        res = np.dot(b4, A)
+        tgt = np.array([1.23495091, 1.12222648])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecmat2(self):
+        A, _, _, b3, _ = self._create_data()
+        res = np.dot(b3, A.transpose())
+        tgt = np.array([[0.58793804, 0.08957460, 0.30605758, 0.62716383]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecmat3(self):
+        A, _, _, _, b4 = self._create_data()
+        res = np.dot(A.transpose(), b4)
+        tgt = np.array([1.23495091, 1.12222648])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecvecouter(self):
+        _, b1, _, b3, _ = self._create_data()
+        res = np.dot(b1, b3)
+        tgt = np.array([[0.20128610, 0.08400440], [0.07190947, 0.03001058]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecvecinner(self):
+        _, b1, _, b3, _ = self._create_data()
+        res = np.dot(b3, b1)
+        tgt = np.array([[0.23129668]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotcolumnvect1(self):
+        b1 = np.ones((3, 1))
+        b2 = [5.3]
+        res = np.dot(b1, b2)
+        tgt = np.array([5.3, 5.3, 5.3])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotcolumnvect2(self):
+        b1 = np.ones((3, 1)).transpose()
+        b2 = [6.2]
+        res = np.dot(b2, b1)
+        tgt = np.array([6.2, 6.2, 6.2])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecscalar(self):
+        rng = np.random.RandomState(100)
+        b1 = rng.random((1, 1))
+        b2 = rng.random((1, 4))
+        res = np.dot(b1, b2)
+        tgt = np.array([[0.15126730, 0.23068496, 0.45905553, 0.00256425]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_dotvecscalar2(self):
+        rng = np.random.RandomState(100)
+        b1 = rng.random((4, 1))
+        b2 = rng.random((1, 1))
+        res = np.dot(b1, b2)
+        tgt = np.array([[0.00256425], [0.00131359], [0.00200324], [0.00398638]])
+        assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_all(self):
+        dims = [(), (1,), (1, 1)]
+        dout = [(), (1,), (1, 1), (1,), (), (1,), (1, 1), (1,), (1, 1)]
+        for dim, (dim1, dim2) in zip(dout, itertools.product(dims, dims)):
+            b1 = np.zeros(dim1)
+            b2 = np.zeros(dim2)
+            res = np.dot(b1, b2)
+            tgt = np.zeros(dim)
+            assert_(res.shape == tgt.shape)
+            assert_almost_equal(res, tgt, decimal=self.N)
+
+    def test_vecobject(self):
+        class Vec:
+            def __init__(self, sequence=None):
+                if sequence is None:
+                    sequence = []
+                self.array = np.array(sequence)
+
+            def __add__(self, other):
+                out = Vec()
+                out.array = self.array + other.array
+                return out
+
+            def __sub__(self, other):
+                out = Vec()
+                out.array = self.array - other.array
+                return out
+
+            def __mul__(self, other):  # with scalar
+                out = Vec(self.array.copy())
+                out.array *= other
+                return out
+
+            def __rmul__(self, other):
+                return self * other
+
+        U_non_cont = np.transpose([[1., 1.], [1., 2.]])
+        U_cont = np.ascontiguousarray(U_non_cont)
+        x = np.array([Vec([1., 0.]), Vec([0., 1.])])
+        zeros = np.array([Vec([0., 0.]), Vec([0., 0.])])
+        zeros_test = np.dot(U_cont, x) - np.dot(U_non_cont, x)
+        assert_equal(zeros[0].array, zeros_test[0].array)
+        assert_equal(zeros[1].array, zeros_test[1].array)
+
+    def test_dot_2args(self):
+
+        a = np.array([[1, 2], [3, 4]], dtype=float)
+        b = np.array([[1, 0], [1, 1]], dtype=float)
+        c = np.array([[3, 2], [7, 4]], dtype=float)
+
+        d = dot(a, b)
+        assert_allclose(c, d)
+
+    def test_dot_3args(self):
+
+        np.random.seed(22)
+        f = np.random.random_sample((1024, 16))
+        v = np.random.random_sample((16, 32))
+
+        r = np.empty((1024, 32))
+        if HAS_REFCOUNT:
+            orig_refcount = sys.getrefcount(r)
+        for i in range(12):
+            dot(f, v, r)
+        if HAS_REFCOUNT:
+            assert_equal(sys.getrefcount(r), orig_refcount)
+        r2 = dot(f, v, out=None)
+        assert_array_equal(r2, r)
+        assert_(r is dot(f, v, out=r))
+
+        v = v[:, 0].copy()  # v.shape == (16,)
+        r = r[:, 0].copy()  # r.shape == (1024,)
+        r2 = dot(f, v)
+        assert_(r is dot(f, v, r))
+        assert_array_equal(r2, r)
+
+    def test_dot_3args_errors(self):
+
+        np.random.seed(22)
+        f = np.random.random_sample((1024, 16))
+        v = np.random.random_sample((16, 32))
+
+        r = np.empty((1024, 31))
+        assert_raises(ValueError, dot, f, v, r)
+
+        r = np.empty((1024,))
+        assert_raises(ValueError, dot, f, v, r)
+
+        r = np.empty((32,))
+        assert_raises(ValueError, dot, f, v, r)
+
+        r = np.empty((32, 1024))
+        assert_raises(ValueError, dot, f, v, r)
+        assert_raises(ValueError, dot, f, v, r.T)
+
+        r = np.empty((1024, 64))
+        assert_raises(ValueError, dot, f, v, r[:, ::2])
+        assert_raises(ValueError, dot, f, v, r[:, :32])
+
+        r = np.empty((1024, 32), dtype=np.float32)
+        assert_raises(ValueError, dot, f, v, r)
+
+        r = np.empty((1024, 32), dtype=int)
+        assert_raises(ValueError, dot, f, v, r)
+
+    def test_dot_out_result(self):
+        x = np.ones((), dtype=np.float16)
+        y = np.ones((5,), dtype=np.float16)
+        z = np.zeros((5,), dtype=np.float16)
+        res = x.dot(y, out=z)
+        assert np.array_equal(res, y)
+        assert np.array_equal(z, y)
+
+    def test_dot_out_aliasing(self):
+        x = np.ones((), dtype=np.float16)
+        y = np.ones((5,), dtype=np.float16)
+        z = np.zeros((5,), dtype=np.float16)
+        res = x.dot(y, out=z)
+        z[0] = 2
+        assert np.array_equal(res, z)
+
+    def test_dot_array_order(self):
+        a = np.array([[1, 2], [3, 4]], order='C')
+        b = np.array([[1, 2], [3, 4]], order='F')
+        res = np.dot(a, a)
+
+        # integer arrays are exact
+        assert_equal(np.dot(a, b), res)
+        assert_equal(np.dot(b, a), res)
+        assert_equal(np.dot(b, b), res)
+
+    def test_accelerate_framework_sgemv_fix(self):
+
+        def aligned_array(shape, align, dtype, order='C'):
+            d = dtype(0)
+            N = np.prod(shape)
+            tmp = np.zeros(N * d.nbytes + align, dtype=np.uint8)
+            address = tmp.__array_interface__["data"][0]
+            for offset in range(align):
+                if (address + offset) % align == 0:
+                    break
+            tmp = tmp[offset:offset + N * d.nbytes].view(dtype=dtype)
+            return tmp.reshape(shape, order=order)
+
+        def as_aligned(arr, align, dtype, order='C'):
+            aligned = aligned_array(arr.shape, align, dtype, order)
+            aligned[:] = arr[:]
+            return aligned
+
+        def assert_dot_close(A, X, desired):
+            assert_allclose(np.dot(A, X), desired, rtol=1e-5, atol=1e-7)
+
+        m = aligned_array(100, 15, np.float32)
+        s = aligned_array((100, 100), 15, np.float32)
+        np.dot(s, m)  # this will always segfault if the bug is present
+
+        testdata = itertools.product((15, 32), (10000,), (200, 89), ('C', 'F'))
+        for align, m, n, a_order in testdata:
+            # Calculation in double precision
+            A_d = np.random.rand(m, n)
+            X_d = np.random.rand(n)
+            desired = np.dot(A_d, X_d)
+            # Calculation with aligned single precision
+            A_f = as_aligned(A_d, align, np.float32, order=a_order)
+            X_f = as_aligned(X_d, align, np.float32)
+            assert_dot_close(A_f, X_f, desired)
+            # Strided A rows
+            A_d_2 = A_d[::2]
+            desired = np.dot(A_d_2, X_d)
+            A_f_2 = A_f[::2]
+            assert_dot_close(A_f_2, X_f, desired)
+            # Strided A columns, strided X vector
+            A_d_22 = A_d_2[:, ::2]
+            X_d_2 = X_d[::2]
+            desired = np.dot(A_d_22, X_d_2)
+            A_f_22 = A_f_2[:, ::2]
+            X_f_2 = X_f[::2]
+            assert_dot_close(A_f_22, X_f_2, desired)
+            # Check the strides are as expected
+            if a_order == 'F':
+                assert_equal(A_f_22.strides, (8, 8 * m))
+            else:
+                assert_equal(A_f_22.strides, (8 * n, 8))
+            assert_equal(X_f_2.strides, (8,))
+            # Strides in A rows + cols only
+            X_f_2c = as_aligned(X_f_2, align, np.float32)
+            assert_dot_close(A_f_22, X_f_2c, desired)
+            # Strides just in A cols
+            A_d_12 = A_d[:, ::2]
+            desired = np.dot(A_d_12, X_d_2)
+            A_f_12 = A_f[:, ::2]
+            assert_dot_close(A_f_12, X_f_2c, desired)
+            # Strides in A cols and X
+            assert_dot_close(A_f_12, X_f_2, desired)
+
+    @pytest.mark.slow
+    @pytest.mark.parametrize("dtype", [np.float64, np.complex128])
+    @requires_memory(free_bytes=18e9)  # complex case needs 18GiB+
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_huge_vectordot(self, dtype):
+        # Large vector multiplications are chunked with 32bit BLAS
+        # Test that the chunking does the right thing, see also gh-22262
+        data = np.ones(2**30 + 100, dtype=dtype)
+        res = np.dot(data, data)
+        assert res == 2**30 + 100
+
+    def test_dtype_discovery_fails(self):
+        # See gh-14247, error checking was missing for failed dtype discovery
+        class BadObject:
+            def __array__(self, dtype=None, copy=None):
+                raise TypeError("just this tiny mint leaf")
+
+        with pytest.raises(TypeError):
+            np.dot(BadObject(), BadObject())
+
+        with pytest.raises(TypeError):
+            np.dot(3.0, BadObject())
+
+
+class MatmulCommon:
+    """Common tests for '@' operator and numpy.matmul.
+
+    """
+    # Should work with these types. Will want to add
+    # "O" at some point
+    types = "?bhilqBHILQefdgFDGO"
+
+    def test_exceptions(self):
+        dims = [
+            ((1,), (2,)),            # mismatched vector vector
+            ((2, 1,), (2,)),         # mismatched matrix vector
+            ((2,), (1, 2)),          # mismatched vector matrix
+            ((1, 2), (3, 1)),        # mismatched matrix matrix
+            ((1,), ()),              # vector scalar
+            ((), (1)),               # scalar vector
+            ((1, 1), ()),            # matrix scalar
+            ((), (1, 1)),            # scalar matrix
+            ((2, 2, 1), (3, 1, 2)),  # cannot broadcast
+            ]
+
+        for dt, (dm1, dm2) in itertools.product(self.types, dims):
+            a = np.ones(dm1, dtype=dt)
+            b = np.ones(dm2, dtype=dt)
+            assert_raises(ValueError, self.matmul, a, b)
+
+    def test_shapes(self):
+        dims = [
+            ((1, 1), (2, 1, 1)),     # broadcast first argument
+            ((2, 1, 1), (1, 1)),     # broadcast second argument
+            ((2, 1, 1), (2, 1, 1)),  # matrix stack sizes match
+            ]
+
+        for dt, (dm1, dm2) in itertools.product(self.types, dims):
+            a = np.ones(dm1, dtype=dt)
+            b = np.ones(dm2, dtype=dt)
+            res = self.matmul(a, b)
+            assert_(res.shape == (2, 1, 1))
+
+        # vector vector returns scalars.
+        for dt in self.types:
+            a = np.ones((2,), dtype=dt)
+            b = np.ones((2,), dtype=dt)
+            c = self.matmul(a, b)
+            assert_(np.array(c).shape == ())
+
+    def test_result_types(self):
+        mat = np.ones((1, 1))
+        vec = np.ones((1,))
+        for dt in self.types:
+            m = mat.astype(dt)
+            v = vec.astype(dt)
+            for arg in [(m, v), (v, m), (m, m)]:
+                res = self.matmul(*arg)
+                assert_(res.dtype == dt)
+
+            # vector vector returns scalars
+            if dt != "O":
+                res = self.matmul(v, v)
+                assert_(type(res) is np.dtype(dt).type)
+
+    def test_scalar_output(self):
+        vec1 = np.array([2])
+        vec2 = np.array([3, 4]).reshape(1, -1)
+        tgt = np.array([6, 8])
+        for dt in self.types[1:]:
+            v1 = vec1.astype(dt)
+            v2 = vec2.astype(dt)
+            res = self.matmul(v1, v2)
+            assert_equal(res, tgt)
+            res = self.matmul(v2.T, v1)
+            assert_equal(res, tgt)
+
+        # boolean type
+        vec = np.array([True, True], dtype='?').reshape(1, -1)
+        res = self.matmul(vec[:, 0], vec)
+        assert_equal(res, True)
+
+    def test_vector_vector_values(self):
+        vec1 = np.array([1, 2])
+        vec2 = np.array([3, 4]).reshape(-1, 1)
+        tgt1 = np.array([11])
+        tgt2 = np.array([[3, 6], [4, 8]])
+        for dt in self.types[1:]:
+            v1 = vec1.astype(dt)
+            v2 = vec2.astype(dt)
+            res = self.matmul(v1, v2)
+            assert_equal(res, tgt1)
+            # no broadcast, we must make v1 into a 2d ndarray
+            res = self.matmul(v2, v1.reshape(1, -1))
+            assert_equal(res, tgt2)
+
+        # boolean type
+        vec = np.array([True, True], dtype='?')
+        res = self.matmul(vec, vec)
+        assert_equal(res, True)
+
+    def test_vector_matrix_values(self):
+        vec = np.array([1, 2])
+        mat1 = np.array([[1, 2], [3, 4]])
+        mat2 = np.stack([mat1] * 2, axis=0)
+        tgt1 = np.array([7, 10])
+        tgt2 = np.stack([tgt1] * 2, axis=0)
+        for dt in self.types[1:]:
+            v = vec.astype(dt)
+            m1 = mat1.astype(dt)
+            m2 = mat2.astype(dt)
+            res = self.matmul(v, m1)
+            assert_equal(res, tgt1)
+            res = self.matmul(v, m2)
+            assert_equal(res, tgt2)
+
+        # boolean type
+        vec = np.array([True, False])
+        mat1 = np.array([[True, False], [False, True]])
+        mat2 = np.stack([mat1] * 2, axis=0)
+        tgt1 = np.array([True, False])
+        tgt2 = np.stack([tgt1] * 2, axis=0)
+
+        res = self.matmul(vec, mat1)
+        assert_equal(res, tgt1)
+        res = self.matmul(vec, mat2)
+        assert_equal(res, tgt2)
+
+    def test_matrix_vector_values(self):
+        vec = np.array([1, 2])
+        mat1 = np.array([[1, 2], [3, 4]])
+        mat2 = np.stack([mat1] * 2, axis=0)
+        tgt1 = np.array([5, 11])
+        tgt2 = np.stack([tgt1] * 2, axis=0)
+        for dt in self.types[1:]:
+            v = vec.astype(dt)
+            m1 = mat1.astype(dt)
+            m2 = mat2.astype(dt)
+            res = self.matmul(m1, v)
+            assert_equal(res, tgt1)
+            res = self.matmul(m2, v)
+            assert_equal(res, tgt2)
+
+        # boolean type
+        vec = np.array([True, False])
+        mat1 = np.array([[True, False], [False, True]])
+        mat2 = np.stack([mat1] * 2, axis=0)
+        tgt1 = np.array([True, False])
+        tgt2 = np.stack([tgt1] * 2, axis=0)
+
+        res = self.matmul(vec, mat1)
+        assert_equal(res, tgt1)
+        res = self.matmul(vec, mat2)
+        assert_equal(res, tgt2)
+
+    def test_matrix_matrix_values(self):
+        mat1 = np.array([[1, 2], [3, 4]])
+        mat2 = np.array([[1, 0], [1, 1]])
+        mat12 = np.stack([mat1, mat2], axis=0)
+        mat21 = np.stack([mat2, mat1], axis=0)
+        tgt11 = np.array([[7, 10], [15, 22]])
+        tgt12 = np.array([[3, 2], [7, 4]])
+        tgt21 = np.array([[1, 2], [4, 6]])
+        tgt12_21 = np.stack([tgt12, tgt21], axis=0)
+        tgt11_12 = np.stack((tgt11, tgt12), axis=0)
+        tgt11_21 = np.stack((tgt11, tgt21), axis=0)
+        for dt in self.types[1:]:
+            m1 = mat1.astype(dt)
+            m2 = mat2.astype(dt)
+            m12 = mat12.astype(dt)
+            m21 = mat21.astype(dt)
+
+            # matrix @ matrix
+            res = self.matmul(m1, m2)
+            assert_equal(res, tgt12)
+            res = self.matmul(m2, m1)
+            assert_equal(res, tgt21)
+
+            # stacked @ matrix
+            res = self.matmul(m12, m1)
+            assert_equal(res, tgt11_21)
+
+            # matrix @ stacked
+            res = self.matmul(m1, m12)
+            assert_equal(res, tgt11_12)
+
+            # stacked @ stacked
+            res = self.matmul(m12, m21)
+            assert_equal(res, tgt12_21)
+
+        # boolean type
+        m1 = np.array([[1, 1], [0, 0]], dtype=np.bool)
+        m2 = np.array([[1, 0], [1, 1]], dtype=np.bool)
+        m12 = np.stack([m1, m2], axis=0)
+        m21 = np.stack([m2, m1], axis=0)
+        tgt11 = m1
+        tgt12 = m1
+        tgt21 = np.array([[1, 1], [1, 1]], dtype=np.bool)
+        tgt12_21 = np.stack([tgt12, tgt21], axis=0)
+        tgt11_12 = np.stack((tgt11, tgt12), axis=0)
+        tgt11_21 = np.stack((tgt11, tgt21), axis=0)
+
+        # matrix @ matrix
+        res = self.matmul(m1, m2)
+        assert_equal(res, tgt12)
+        res = self.matmul(m2, m1)
+        assert_equal(res, tgt21)
+
+        # stacked @ matrix
+        res = self.matmul(m12, m1)
+        assert_equal(res, tgt11_21)
+
+        # matrix @ stacked
+        res = self.matmul(m1, m12)
+        assert_equal(res, tgt11_12)
+
+        # stacked @ stacked
+        res = self.matmul(m12, m21)
+        assert_equal(res, tgt12_21)
+
+
+class TestMatmul(MatmulCommon):
+    matmul = np.matmul
+
+    def test_out_arg(self):
+        a = np.ones((5, 2), dtype=float)
+        b = np.array([[1, 3], [5, 7]], dtype=float)
+        tgt = np.dot(a, b)
+
+        # test as positional argument
+        msg = "out positional argument"
+        out = np.zeros((5, 2), dtype=float)
+        self.matmul(a, b, out)
+        assert_array_equal(out, tgt, err_msg=msg)
+
+        # test as keyword argument
+        msg = "out keyword argument"
+        out = np.zeros((5, 2), dtype=float)
+        self.matmul(a, b, out=out)
+        assert_array_equal(out, tgt, err_msg=msg)
+
+        # test out with not allowed type cast (safe casting)
+        msg = "Cannot cast ufunc .* output"
+        out = np.zeros((5, 2), dtype=np.int32)
+        assert_raises_regex(TypeError, msg, self.matmul, a, b, out=out)
+
+        # test out with type upcast to complex
+        out = np.zeros((5, 2), dtype=np.complex128)
+        c = self.matmul(a, b, out=out)
+        assert_(c is out)
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', ComplexWarning)
+            c = c.astype(tgt.dtype)
+        assert_array_equal(c, tgt)
+
+    def test_empty_out(self):
+        # Check that the output cannot be broadcast, so that it cannot be
+        # size zero when the outer dimensions (iterator size) has size zero.
+        arr = np.ones((0, 1, 1))
+        out = np.ones((1, 1, 1))
+        assert self.matmul(arr, arr).shape == (0, 1, 1)
+
+        with pytest.raises(ValueError, match=r"non-broadcastable"):
+            self.matmul(arr, arr, out=out)
+
+    def test_out_contiguous(self):
+        a = np.ones((5, 2), dtype=float)
+        b = np.array([[1, 3], [5, 7]], dtype=float)
+        v = np.array([1, 3], dtype=float)
+        tgt = np.dot(a, b)
+        tgt_mv = np.dot(a, v)
+
+        # test out non-contiguous
+        out = np.ones((5, 2, 2), dtype=float)
+        c = self.matmul(a, b, out=out[..., 0])
+        assert c.base is out
+        assert_array_equal(c, tgt)
+        c = self.matmul(a, v, out=out[:, 0, 0])
+        assert_array_equal(c, tgt_mv)
+        c = self.matmul(v, a.T, out=out[:, 0, 0])
+        assert_array_equal(c, tgt_mv)
+
+        # test out contiguous in only last dim
+        out = np.ones((10, 2), dtype=float)
+        c = self.matmul(a, b, out=out[::2, :])
+        assert_array_equal(c, tgt)
+
+        # test transposes of out, args
+        out = np.ones((5, 2), dtype=float)
+        c = self.matmul(b.T, a.T, out=out.T)
+        assert_array_equal(out, tgt)
+
+    m1 = np.arange(15.).reshape(5, 3)
+    m2 = np.arange(21.).reshape(3, 7)
+    m3 = np.arange(30.).reshape(5, 6)[:, ::2]  # non-contiguous
+    vc = np.arange(10.)
+    vr = np.arange(6.)
+    m0 = np.zeros((3, 0))
+
+    @pytest.mark.parametrize('args', (
+            # matrix-matrix
+            (m1, m2), (m2.T, m1.T), (m2.T.copy(), m1.T), (m2.T, m1.T.copy()),
+            # matrix-matrix-transpose, contiguous and non
+            (m1, m1.T), (m1.T, m1), (m1, m3.T), (m3, m1.T),
+            (m3, m3.T), (m3.T, m3),
+            # matrix-matrix non-contiguous
+            (m3, m2), (m2.T, m3.T), (m2.T.copy(), m3.T),
+            # vector-matrix, matrix-vector, contiguous
+            (m1, vr[:3]), (vc[:5], m1), (m1.T, vc[:5]), (vr[:3], m1.T),
+            # vector-matrix, matrix-vector, vector non-contiguous
+            (m1, vr[::2]), (vc[::2], m1), (m1.T, vc[::2]), (vr[::2], m1.T),
+            # vector-matrix, matrix-vector, matrix non-contiguous
+            (m3, vr[:3]), (vc[:5], m3), (m3.T, vc[:5]), (vr[:3], m3.T),
+            # vector-matrix, matrix-vector, both non-contiguous
+            (m3, vr[::2]), (vc[::2], m3), (m3.T, vc[::2]), (vr[::2], m3.T),
+            # size == 0
+            (m0, m0.T), (m0.T, m0), (m1, m0), (m0.T, m1.T),
+        ))
+    def test_dot_equivalent(self, args):
+        r1 = np.matmul(*args)
+        r2 = np.dot(*args)
+        assert_equal(r1, r2)
+
+        r3 = np.matmul(args[0].copy(), args[1].copy())
+        assert_equal(r1, r3)
+
+    # issue 29164 with extra checks
+    @pytest.mark.parametrize('dtype', (
+        np.float32, np.float64, np.complex64, np.complex128
+    ))
+    def test_dot_equivalent_matrix_matrix_blastypes(self, dtype):
+        modes = list(itertools.product(['C', 'F'], [True, False]))
+
+        def apply_mode(m, mode):
+            order, is_contiguous = mode
+            if is_contiguous:
+                return m.copy() if order == 'C' else m.T.copy().T
+
+            retval = np.zeros(
+                (m.shape[0] * 2, m.shape[1] * 2), dtype=m.dtype, order=order
+            )[::2, ::2]
+            retval[...] = m
+            return retval
+
+        is_complex = np.issubdtype(dtype, np.complexfloating)
+        m1 = self.m1.astype(dtype) + (1j if is_complex else 0)
+        m2 = self.m2.astype(dtype) + (1j if is_complex else 0)
+        dot_res = np.dot(m1, m2)
+        mo = np.zeros_like(dot_res)
+
+        for mode in itertools.product(*[modes] * 3):
+            m1_, m2_, mo_ = [apply_mode(*x) for x in zip([m1, m2, mo], mode)]
+            assert_equal(np.matmul(m1_, m2_, out=mo_), dot_res)
+
+    def test_matmul_object(self):
+        import fractions
+
+        f = np.vectorize(fractions.Fraction)
+
+        def random_ints():
+            return np.random.randint(1, 1000, size=(10, 3, 3))
+        M1 = f(random_ints(), random_ints())
+        M2 = f(random_ints(), random_ints())
+
+        M3 = self.matmul(M1, M2)
+
+        [N1, N2, N3] = [a.astype(float) for a in [M1, M2, M3]]
+
+        assert_allclose(N3, self.matmul(N1, N2))
+
+    def test_matmul_object_type_scalar(self):
+        from fractions import Fraction as F
+        v = np.array([F(2, 3), F(5, 7)])
+        res = self.matmul(v, v)
+        assert_(type(res) is F)
+
+    def test_matmul_empty(self):
+        a = np.empty((3, 0), dtype=object)
+        b = np.empty((0, 3), dtype=object)
+        c = np.zeros((3, 3))
+        assert_array_equal(np.matmul(a, b), c)
+
+    def test_matmul_exception_multiply(self):
+        # test that matmul fails if `__mul__` is missing
+        class add_not_multiply:
+            def __add__(self, other):
+                return self
+        a = np.full((3, 3), add_not_multiply())
+        with assert_raises(TypeError):
+            b = np.matmul(a, a)
+
+    def test_matmul_exception_add(self):
+        # test that matmul fails if `__add__` is missing
+        class multiply_not_add:
+            def __mul__(self, other):
+                return self
+        a = np.full((3, 3), multiply_not_add())
+        with assert_raises(TypeError):
+            b = np.matmul(a, a)
+
+    def test_matmul_bool(self):
+        # gh-14439
+        a = np.array([[1, 0], [1, 1]], dtype=bool)
+        assert np.max(a.view(np.uint8)) == 1
+        b = np.matmul(a, a)
+        # matmul with boolean output should always be 0, 1
+        assert np.max(b.view(np.uint8)) == 1
+
+        rg = np.random.default_rng(np.random.PCG64(43))
+        d = rg.integers(2, size=4 * 5, dtype=np.int8)
+        d = d.reshape(4, 5) > 0
+        out1 = np.matmul(d, d.reshape(5, 4))
+        out2 = np.dot(d, d.reshape(5, 4))
+        assert_equal(out1, out2)
+
+        c = np.matmul(np.zeros((2, 0), dtype=bool), np.zeros(0, dtype=bool))
+        assert not np.any(c)
+
+
+class TestMatmulOperator(MatmulCommon):
+    import operator
+    matmul = operator.matmul
+
+    def test_array_priority_override(self):
+
+        class A:
+            __array_priority__ = 1000
+
+            def __matmul__(self, other):
+                return "A"
+
+            def __rmatmul__(self, other):
+                return "A"
+
+        a = A()
+        b = np.ones(2)
+        assert_equal(self.matmul(a, b), "A")
+        assert_equal(self.matmul(b, a), "A")
+
+    def test_matmul_raises(self):
+        assert_raises(TypeError, self.matmul, np.int8(5), np.int8(5))
+        assert_raises(TypeError, self.matmul, np.void(b'abc'), np.void(b'abc'))
+        assert_raises(TypeError, self.matmul, np.arange(10), np.void(b'abc'))
+
+
+class TestMatmulInplace:
+    DTYPES = {}
+    for i in MatmulCommon.types:
+        for j in MatmulCommon.types:
+            if np.can_cast(j, i):
+                DTYPES[f"{i}-{j}"] = (np.dtype(i), np.dtype(j))
+
+    @pytest.mark.parametrize("dtype1,dtype2", DTYPES.values(), ids=DTYPES)
+    def test_basic(self, dtype1: np.dtype, dtype2: np.dtype) -> None:
+        a = np.arange(10).reshape(5, 2).astype(dtype1)
+        a_id = id(a)
+        b = np.ones((2, 2), dtype=dtype2)
+
+        ref = a @ b
+        a @= b
+
+        assert id(a) == a_id
+        assert a.dtype == dtype1
+        assert a.shape == (5, 2)
+        if dtype1.kind in "fc":
+            np.testing.assert_allclose(a, ref)
+        else:
+            np.testing.assert_array_equal(a, ref)
+
+    SHAPES = {
+        "2d_large": ((10**5, 10), (10, 10)),
+        "3d_large": ((10**4, 10, 10), (1, 10, 10)),
+        "1d": ((3,), (3,)),
+        "2d_1d": ((3, 3), (3,)),
+        "1d_2d": ((3,), (3, 3)),
+        "2d_broadcast": ((3, 3), (3, 1)),
+        "2d_broadcast_reverse": ((1, 3), (3, 3)),
+        "3d_broadcast1": ((3, 3, 3), (1, 3, 1)),
+        "3d_broadcast2": ((3, 3, 3), (1, 3, 3)),
+        "3d_broadcast3": ((3, 3, 3), (3, 3, 1)),
+        "3d_broadcast_reverse1": ((1, 3, 3), (3, 3, 3)),
+        "3d_broadcast_reverse2": ((3, 1, 3), (3, 3, 3)),
+        "3d_broadcast_reverse3": ((1, 1, 3), (3, 3, 3)),
+    }
+
+    @pytest.mark.parametrize("a_shape,b_shape", SHAPES.values(), ids=SHAPES)
+    def test_shapes(self, a_shape: tuple[int, ...], b_shape: tuple[int, ...]):
+        a_size = np.prod(a_shape)
+        a = np.arange(a_size).reshape(a_shape).astype(np.float64)
+        a_id = id(a)
+
+        b_size = np.prod(b_shape)
+        b = np.arange(b_size).reshape(b_shape)
+
+        ref = a @ b
+        if ref.shape != a_shape:
+            with pytest.raises(ValueError):
+                a @= b
+            return
+        else:
+            a @= b
+
+        assert id(a) == a_id
+        assert a.dtype.type == np.float64
+        assert a.shape == a_shape
+        np.testing.assert_allclose(a, ref)
+
+
+def test_matmul_axes():
+    a = np.arange(3 * 4 * 5).reshape(3, 4, 5)
+    c = np.matmul(a, a, axes=[(-2, -1), (-1, -2), (1, 2)])
+    assert c.shape == (3, 4, 4)
+    d = np.matmul(a, a, axes=[(-2, -1), (-1, -2), (0, 1)])
+    assert d.shape == (4, 4, 3)
+    e = np.swapaxes(d, 0, 2)
+    assert_array_equal(e, c)
+    f = np.matmul(a, np.arange(3), axes=[(1, 0), (0), (0)])
+    assert f.shape == (4, 5)
+
+
+class TestInner:
+
+    def test_inner_type_mismatch(self):
+        c = 1.
+        A = np.array((1, 1), dtype='i,i')
+
+        assert_raises(TypeError, np.inner, c, A)
+        assert_raises(TypeError, np.inner, A, c)
+
+    def test_inner_scalar_and_vector(self):
+        for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?':
+            sca = np.array(3, dtype=dt)[()]
+            vec = np.array([1, 2], dtype=dt)
+            desired = np.array([3, 6], dtype=dt)
+            assert_equal(np.inner(vec, sca), desired)
+            assert_equal(np.inner(sca, vec), desired)
+
+    def test_vecself(self):
+        # Ticket 844.
+        # Inner product of a vector with itself segfaults or give
+        # meaningless result
+        a = np.zeros(shape=(1, 80), dtype=np.float64)
+        p = np.inner(a, a)
+        assert_almost_equal(p, 0, decimal=14)
+
+    def test_inner_product_with_various_contiguities(self):
+        # github issue 6532
+        for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?':
+            # check an inner product involving a matrix transpose
+            A = np.array([[1, 2], [3, 4]], dtype=dt)
+            B = np.array([[1, 3], [2, 4]], dtype=dt)
+            C = np.array([1, 1], dtype=dt)
+            desired = np.array([4, 6], dtype=dt)
+            assert_equal(np.inner(A.T, C), desired)
+            assert_equal(np.inner(C, A.T), desired)
+            assert_equal(np.inner(B, C), desired)
+            assert_equal(np.inner(C, B), desired)
+            # check a matrix product
+            desired = np.array([[7, 10], [15, 22]], dtype=dt)
+            assert_equal(np.inner(A, B), desired)
+            # check the syrk vs. gemm paths
+            desired = np.array([[5, 11], [11, 25]], dtype=dt)
+            assert_equal(np.inner(A, A), desired)
+            assert_equal(np.inner(A, A.copy()), desired)
+            # check an inner product involving an aliased and reversed view
+            a = np.arange(5).astype(dt)
+            b = a[::-1]
+            desired = np.array(10, dtype=dt).item()
+            assert_equal(np.inner(b, a), desired)
+
+    def test_3d_tensor(self):
+        for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?':
+            a = np.arange(24).reshape(2, 3, 4).astype(dt)
+            b = np.arange(24, 48).reshape(2, 3, 4).astype(dt)
+            desired = np.array(
+                [[[[ 158,  182,  206],
+                   [ 230,  254,  278]],
+
+                  [[ 566,  654,  742],
+                   [ 830,  918, 1006]],
+
+                  [[ 974, 1126, 1278],
+                   [1430, 1582, 1734]]],
+
+                 [[[1382, 1598, 1814],
+                   [2030, 2246, 2462]],
+
+                  [[1790, 2070, 2350],
+                   [2630, 2910, 3190]],
+
+                  [[2198, 2542, 2886],
+                   [3230, 3574, 3918]]]]
+            ).astype(dt)
+            assert_equal(np.inner(a, b), desired)
+            assert_equal(np.inner(b, a).transpose(2, 3, 0, 1), desired)
+
+
+class TestChoose:
+    def _create_data(self):
+        x = 2 * np.ones((3,), dtype=int)
+        y = 3 * np.ones((3,), dtype=int)
+        x2 = 2 * np.ones((2, 3), dtype=int)
+        y2 = 3 * np.ones((2, 3), dtype=int)
+        ind = [0, 0, 1]
+        return x, y, x2, y2, ind
+
+    def test_basic(self):
+        x, y, _, _, ind = self._create_data()
+        A = np.choose(ind, (x, y))
+        assert_equal(A, [2, 2, 3])
+
+    def test_broadcast1(self):
+        _, _, x2, y2, ind = self._create_data()
+        A = np.choose(ind, (x2, y2))
+        assert_equal(A, [[2, 2, 3], [2, 2, 3]])
+
+    def test_broadcast2(self):
+        x, _, _, y2, ind = self._create_data()
+        A = np.choose(ind, (x, y2))
+        assert_equal(A, [[2, 2, 3], [2, 2, 3]])
+
+    @pytest.mark.parametrize("ops",
+        [(1000, np.array([1], dtype=np.uint8)),
+         (-1, np.array([1], dtype=np.uint8)),
+         (1., np.float32(3)),
+         (1., np.array([3], dtype=np.float32))],)
+    def test_output_dtype(self, ops):
+        expected_dt = np.result_type(*ops)
+        assert np.choose([0], ops).dtype == expected_dt
+
+    def test_dimension_and_args_limit(self):
+        # Maxdims for the legacy iterator is 32, but the maximum number
+        # of arguments is actually larger (a itself also counts here)
+        a = np.ones((1,) * 32, dtype=np.intp)
+        res = a.choose([0, a] + [2] * 61)
+        with pytest.raises(ValueError,
+                match="Need at least 0 and at most 64 array objects"):
+            a.choose([0, a] + [2] * 62)
+
+        assert_array_equal(res, a)
+        # Choose is unfortunately limited to 32 dims as of NumPy 2.0
+        a = np.ones((1,) * 60, dtype=np.intp)
+        with pytest.raises(RuntimeError,
+                match=".*32 dimensions but the array has 60"):
+            a.choose([a, a])
+
+
+class TestRepeat:
+    def _create_data(self):
+        m = np.array([1, 2, 3, 4, 5, 6])
+        m_rect = m.reshape((2, 3))
+        return m, m_rect
+
+    def test_basic(self):
+        m, _ = self._create_data()
+        A = np.repeat(m, [1, 3, 2, 1, 1, 2])
+        assert_equal(A, [1, 2, 2, 2, 3,
+                         3, 4, 5, 6, 6])
+
+    def test_broadcast1(self):
+        m, _ = self._create_data()
+        A = np.repeat(m, 2)
+        assert_equal(A, [1, 1, 2, 2, 3, 3,
+                         4, 4, 5, 5, 6, 6])
+
+    def test_axis_spec(self):
+        _, m_rect = self._create_data()
+        A = np.repeat(m_rect, [2, 1], axis=0)
+        assert_equal(A, [[1, 2, 3],
+                         [1, 2, 3],
+                         [4, 5, 6]])
+
+        A = np.repeat(m_rect, [1, 3, 2], axis=1)
+        assert_equal(A, [[1, 2, 2, 2, 3, 3],
+                         [4, 5, 5, 5, 6, 6]])
+
+    def test_broadcast2(self):
+        _, m_rect = self._create_data()
+        A = np.repeat(m_rect, 2, axis=0)
+        assert_equal(A, [[1, 2, 3],
+                         [1, 2, 3],
+                         [4, 5, 6],
+                         [4, 5, 6]])
+
+        A = np.repeat(m_rect, 2, axis=1)
+        assert_equal(A, [[1, 1, 2, 2, 3, 3],
+                         [4, 4, 5, 5, 6, 6]])
+
+
+# TODO: test for multidimensional
+NEIGH_MODE = {'zero': 0, 'one': 1, 'constant': 2, 'circular': 3, 'mirror': 4}
+
+
+@pytest.mark.parametrize('dt', [float, Decimal], ids=['float', 'object'])
+class TestNeighborhoodIter:
+    # Simple, 2d tests
+    def test_simple2d(self, dt):
+        # Test zero and one padding for simple data type
+        x = np.array([[0, 1], [2, 3]], dtype=dt)
+        r = [np.array([[0, 0, 0], [0, 0, 1]], dtype=dt),
+             np.array([[0, 0, 0], [0, 1, 0]], dtype=dt),
+             np.array([[0, 0, 1], [0, 2, 3]], dtype=dt),
+             np.array([[0, 1, 0], [2, 3, 0]], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 0, -1, 1], x[0], NEIGH_MODE['zero'])
+        assert_array_equal(l, r)
+
+        r = [np.array([[1, 1, 1], [1, 0, 1]], dtype=dt),
+             np.array([[1, 1, 1], [0, 1, 1]], dtype=dt),
+             np.array([[1, 0, 1], [1, 2, 3]], dtype=dt),
+             np.array([[0, 1, 1], [2, 3, 1]], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 0, -1, 1], x[0], NEIGH_MODE['one'])
+        assert_array_equal(l, r)
+
+        r = [np.array([[4, 4, 4], [4, 0, 1]], dtype=dt),
+             np.array([[4, 4, 4], [0, 1, 4]], dtype=dt),
+             np.array([[4, 0, 1], [4, 2, 3]], dtype=dt),
+             np.array([[0, 1, 4], [2, 3, 4]], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 0, -1, 1], 4, NEIGH_MODE['constant'])
+        assert_array_equal(l, r)
+
+        # Test with start in the middle
+        r = [np.array([[4, 0, 1], [4, 2, 3]], dtype=dt),
+             np.array([[0, 1, 4], [2, 3, 4]], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 0, -1, 1], 4, NEIGH_MODE['constant'], 2)
+        assert_array_equal(l, r)
+
+    def test_mirror2d(self, dt):
+        x = np.array([[0, 1], [2, 3]], dtype=dt)
+        r = [np.array([[0, 0, 1], [0, 0, 1]], dtype=dt),
+             np.array([[0, 1, 1], [0, 1, 1]], dtype=dt),
+             np.array([[0, 0, 1], [2, 2, 3]], dtype=dt),
+             np.array([[0, 1, 1], [2, 3, 3]], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 0, -1, 1], x[0], NEIGH_MODE['mirror'])
+        assert_array_equal(l, r)
+
+    # Simple, 1d tests
+    def test_simple(self, dt):
+        # Test padding with constant values
+        x = np.linspace(1, 5, 5).astype(dt)
+        r = [[0, 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, 0]]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 1], x[0], NEIGH_MODE['zero'])
+        assert_array_equal(l, r)
+
+        r = [[1, 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, 1]]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 1], x[0], NEIGH_MODE['one'])
+        assert_array_equal(l, r)
+
+        r = [[x[4], 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, x[4]]]
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-1, 1], x[4], NEIGH_MODE['constant'])
+        assert_array_equal(l, r)
+
+    # Test mirror modes
+    def test_mirror(self, dt):
+        x = np.linspace(1, 5, 5).astype(dt)
+        r = np.array([[2, 1, 1, 2, 3], [1, 1, 2, 3, 4], [1, 2, 3, 4, 5],
+                [2, 3, 4, 5, 5], [3, 4, 5, 5, 4]], dtype=dt)
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-2, 2], x[1], NEIGH_MODE['mirror'])
+        assert_([i.dtype == dt for i in l])
+        assert_array_equal(l, r)
+
+    # Circular mode
+    def test_circular(self, dt):
+        x = np.linspace(1, 5, 5).astype(dt)
+        r = np.array([[4, 5, 1, 2, 3], [5, 1, 2, 3, 4], [1, 2, 3, 4, 5],
+                [2, 3, 4, 5, 1], [3, 4, 5, 1, 2]], dtype=dt)
+        l = _multiarray_tests.test_neighborhood_iterator(
+                x, [-2, 2], x[0], NEIGH_MODE['circular'])
+        assert_array_equal(l, r)
+
+
+# Test stacking neighborhood iterators
+class TestStackedNeighborhoodIter:
+    # Simple, 1d test: stacking 2 constant-padded neigh iterators
+    def test_simple_const(self):
+        dt = np.float64
+        # Test zero and one padding for simple data type
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([0], dtype=dt),
+             np.array([0], dtype=dt),
+             np.array([1], dtype=dt),
+             np.array([2], dtype=dt),
+             np.array([3], dtype=dt),
+             np.array([0], dtype=dt),
+             np.array([0], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-2, 4], NEIGH_MODE['zero'], [0, 0], NEIGH_MODE['zero'])
+        assert_array_equal(l, r)
+
+        r = [np.array([1, 0, 1], dtype=dt),
+             np.array([0, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 0], dtype=dt),
+             np.array([3, 0, 1], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [-1, 1], NEIGH_MODE['one'])
+        assert_array_equal(l, r)
+
+    # 2nd simple, 1d test: stacking 2 neigh iterators, mixing const padding and
+    # mirror padding
+    def test_simple_mirror(self):
+        dt = np.float64
+        # Stacking zero on top of mirror
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([0, 1, 1], dtype=dt),
+             np.array([1, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 3], dtype=dt),
+             np.array([3, 3, 0], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['mirror'], [-1, 1], NEIGH_MODE['zero'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([1, 0, 0], dtype=dt),
+             np.array([0, 0, 1], dtype=dt),
+             np.array([0, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 0], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [-2, 0], NEIGH_MODE['mirror'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero: 2nd
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([0, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 0], dtype=dt),
+             np.array([3, 0, 0], dtype=dt),
+             np.array([0, 0, 3], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [0, 2], NEIGH_MODE['mirror'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero: 3rd
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([1, 0, 0, 1, 2], dtype=dt),
+             np.array([0, 0, 1, 2, 3], dtype=dt),
+             np.array([0, 1, 2, 3, 0], dtype=dt),
+             np.array([1, 2, 3, 0, 0], dtype=dt),
+             np.array([2, 3, 0, 0, 3], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [-2, 2], NEIGH_MODE['mirror'])
+        assert_array_equal(l, r)
+
+    # 3rd simple, 1d test: stacking 2 neigh iterators, mixing const padding and
+    # circular padding
+    def test_simple_circular(self):
+        dt = np.float64
+        # Stacking zero on top of mirror
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([0, 3, 1], dtype=dt),
+             np.array([3, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 1], dtype=dt),
+             np.array([3, 1, 0], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['circular'], [-1, 1], NEIGH_MODE['zero'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([3, 0, 0], dtype=dt),
+             np.array([0, 0, 1], dtype=dt),
+             np.array([0, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 0], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [-2, 0], NEIGH_MODE['circular'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero: 2nd
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([0, 1, 2], dtype=dt),
+             np.array([1, 2, 3], dtype=dt),
+             np.array([2, 3, 0], dtype=dt),
+             np.array([3, 0, 0], dtype=dt),
+             np.array([0, 0, 1], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [0, 2], NEIGH_MODE['circular'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero: 3rd
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([3, 0, 0, 1, 2], dtype=dt),
+             np.array([0, 0, 1, 2, 3], dtype=dt),
+             np.array([0, 1, 2, 3, 0], dtype=dt),
+             np.array([1, 2, 3, 0, 0], dtype=dt),
+             np.array([2, 3, 0, 0, 1], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [-1, 3], NEIGH_MODE['zero'], [-2, 2], NEIGH_MODE['circular'])
+        assert_array_equal(l, r)
+
+    # 4th simple, 1d test: stacking 2 neigh iterators, but with lower iterator
+    # being strictly within the array
+    def test_simple_strict_within(self):
+        dt = np.float64
+        # Stacking zero on top of zero, first neighborhood strictly inside the
+        # array
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([1, 2, 3, 0], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [1, 1], NEIGH_MODE['zero'], [-1, 2], NEIGH_MODE['zero'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero, first neighborhood strictly inside the
+        # array
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([1, 2, 3, 3], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [1, 1], NEIGH_MODE['zero'], [-1, 2], NEIGH_MODE['mirror'])
+        assert_array_equal(l, r)
+
+        # Stacking mirror on top of zero, first neighborhood strictly inside the
+        # array
+        x = np.array([1, 2, 3], dtype=dt)
+        r = [np.array([1, 2, 3, 1], dtype=dt)]
+        l = _multiarray_tests.test_neighborhood_iterator_oob(
+                x, [1, 1], NEIGH_MODE['zero'], [-1, 2], NEIGH_MODE['circular'])
+        assert_array_equal(l, r)
+
+class TestWarnings:
+
+    def test_complex_warning(self):
+        x = np.array([1, 2])
+        y = np.array([1 - 2j, 1 + 2j])
+
+        with warnings.catch_warnings():
+            warnings.simplefilter("error", ComplexWarning)
+            assert_raises(ComplexWarning, x.__setitem__, slice(None), y)
+            assert_equal(x, [1, 2])
+
+
+class TestMinScalarType:
+
+    def test_usigned_shortshort(self):
+        dt = np.min_scalar_type(2**8 - 1)
+        wanted = np.dtype('uint8')
+        assert_equal(wanted, dt)
+
+    def test_usigned_short(self):
+        dt = np.min_scalar_type(2**16 - 1)
+        wanted = np.dtype('uint16')
+        assert_equal(wanted, dt)
+
+    def test_usigned_int(self):
+        dt = np.min_scalar_type(2**32 - 1)
+        wanted = np.dtype('uint32')
+        assert_equal(wanted, dt)
+
+    def test_usigned_longlong(self):
+        dt = np.min_scalar_type(2**63 - 1)
+        wanted = np.dtype('uint64')
+        assert_equal(wanted, dt)
+
+    def test_object(self):
+        dt = np.min_scalar_type(2**64)
+        wanted = np.dtype('O')
+        assert_equal(wanted, dt)
+
+
+from numpy._core._internal import _dtype_from_pep3118
+
+
+class TestPEP3118Dtype:
+    def _check(self, spec, wanted):
+        dt = np.dtype(wanted)
+        actual = _dtype_from_pep3118(spec)
+        assert_equal(actual, dt,
+                     err_msg=f"spec {spec!r} != dtype {wanted!r}")
+
+    def test_native_padding(self):
+        align = np.dtype('i').alignment
+        for j in range(8):
+            if j == 0:
+                s = 'bi'
+            else:
+                s = 'b%dxi' % j
+            self._check('@' + s, {'f0': ('i1', 0),
+                                'f1': ('i', align * (1 + j // align))})
+            self._check('=' + s, {'f0': ('i1', 0),
+                                'f1': ('i', 1 + j)})
+
+    def test_native_padding_2(self):
+        # Native padding should work also for structs and sub-arrays
+        self._check('x3T{xi}', {'f0': (({'f0': ('i', 4)}, (3,)), 4)})
+        self._check('^x3T{xi}', {'f0': (({'f0': ('i', 1)}, (3,)), 1)})
+
+    def test_trailing_padding(self):
+        # Trailing padding should be included, *and*, the item size
+        # should match the alignment if in aligned mode
+        align = np.dtype('i').alignment
+        size = np.dtype('i').itemsize
+
+        def aligned(n):
+            return align * (1 + (n - 1) // align)
+
+        base = {"formats": ['i'], "names": ['f0']}
+
+        self._check('ix',    dict(itemsize=aligned(size + 1), **base))
+        self._check('ixx',   dict(itemsize=aligned(size + 2), **base))
+        self._check('ixxx',  dict(itemsize=aligned(size + 3), **base))
+        self._check('ixxxx', dict(itemsize=aligned(size + 4), **base))
+        self._check('i7x',   dict(itemsize=aligned(size + 7), **base))
+
+        self._check('^ix',    dict(itemsize=size + 1, **base))
+        self._check('^ixx',   dict(itemsize=size + 2, **base))
+        self._check('^ixxx',  dict(itemsize=size + 3, **base))
+        self._check('^ixxxx', dict(itemsize=size + 4, **base))
+        self._check('^i7x',   dict(itemsize=size + 7, **base))
+
+    def test_native_padding_3(self):
+        dt = np.dtype(
+                [('a', 'b'), ('b', 'i'),
+                    ('sub', np.dtype('b,i')), ('c', 'i')],
+                align=True)
+        self._check("T{b:a:xxxi:b:T{b:f0:=i:f1:}:sub:xxxi:c:}", dt)
+
+        dt = np.dtype(
+                [('a', 'b'), ('b', 'i'), ('c', 'b'), ('d', 'b'),
+                    ('e', 'b'), ('sub', np.dtype('b,i', align=True))])
+        self._check("T{b:a:=i:b:b:c:b:d:b:e:T{b:f0:xxxi:f1:}:sub:}", dt)
+
+    def test_padding_with_array_inside_struct(self):
+        dt = np.dtype(
+                [('a', 'b'), ('b', 'i'), ('c', 'b', (3,)),
+                    ('d', 'i')],
+                align=True)
+        self._check("T{b:a:xxxi:b:3b:c:xi:d:}", dt)
+
+    def test_byteorder_inside_struct(self):
+        # The byte order after @T{=i} should be '=', not '@'.
+        # Check this by noting the absence of native alignment.
+        self._check('@T{^i}xi', {'f0': ({'f0': ('i', 0)}, 0),
+                                 'f1': ('i', 5)})
+
+    def test_intra_padding(self):
+        # Natively aligned sub-arrays may require some internal padding
+        align = np.dtype('i').alignment
+        size = np.dtype('i').itemsize
+
+        def aligned(n):
+            return (align * (1 + (n - 1) // align))
+
+        self._check('(3)T{ix}', ({
+            "names": ['f0'],
+            "formats": ['i'],
+            "offsets": [0],
+            "itemsize": aligned(size + 1)
+        }, (3,)))
+
+    def test_char_vs_string(self):
+        dt = np.dtype('c')
+        self._check('c', dt)
+
+        dt = np.dtype([('f0', 'S1', (4,)), ('f1', 'S4')])
+        self._check('4c4s', dt)
+
+    def test_field_order(self):
+        # gh-9053 - previously, we relied on dictionary key order
+        self._check("(0)I:a:f:b:", [('a', 'I', (0,)), ('b', 'f')])
+        self._check("(0)I:b:f:a:", [('b', 'I', (0,)), ('a', 'f')])
+
+    def test_unnamed_fields(self):
+        self._check('ii',     [('f0', 'i'), ('f1', 'i')])
+        self._check('ii:f0:', [('f1', 'i'), ('f0', 'i')])
+
+        self._check('i', 'i')
+        self._check('i:f0:', [('f0', 'i')])
+
+
+class TestNewBufferProtocol:
+    """ Test PEP3118 buffers """
+
+    def _check_roundtrip(self, obj):
+        obj = np.asarray(obj)
+        x = memoryview(obj)
+        y = np.asarray(x)
+        y2 = np.array(x)
+        assert_(not y.flags.owndata)
+        assert_(y2.flags.owndata)
+
+        assert_equal(y.dtype, obj.dtype)
+        assert_equal(y.shape, obj.shape)
+        assert_array_equal(obj, y)
+
+        assert_equal(y2.dtype, obj.dtype)
+        assert_equal(y2.shape, obj.shape)
+        assert_array_equal(obj, y2)
+
+    def test_roundtrip(self):
+        x = np.array([1, 2, 3, 4, 5], dtype='i4')
+        self._check_roundtrip(x)
+
+        x = np.array([[1, 2], [3, 4]], dtype=np.float64)
+        self._check_roundtrip(x)
+
+        x = np.zeros((3, 3, 3), dtype=np.float32)[:, 0, :]
+        self._check_roundtrip(x)
+
+        dt = [('a', 'b'),
+              ('b', 'h'),
+              ('c', 'i'),
+              ('d', 'l'),
+              ('dx', 'q'),
+              ('e', 'B'),
+              ('f', 'H'),
+              ('g', 'I'),
+              ('h', 'L'),
+              ('hx', 'Q'),
+              ('i', np.single),
+              ('j', np.double),
+              ('k', np.longdouble),
+              ('ix', np.csingle),
+              ('jx', np.cdouble),
+              ('kx', np.clongdouble),
+              ('l', 'S4'),
+              ('m', 'U4'),
+              ('n', 'V3'),
+              ('o', '?'),
+              ('p', np.half),
+              ]
+        x = np.array(
+                [(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+                    b'aaaa', 'bbbb', b'xxx', True, 1.0)],
+                dtype=dt)
+        self._check_roundtrip(x)
+
+        x = np.array(([[1, 2], [3, 4]],), dtype=[('a', (int, (2, 2)))])
+        self._check_roundtrip(x)
+
+        x = np.array([1, 2, 3], dtype='>i2')
+        self._check_roundtrip(x)
+
+        x = np.array([1, 2, 3], dtype='<i2')
+        self._check_roundtrip(x)
+
+        x = np.array([1, 2, 3], dtype='>i4')
+        self._check_roundtrip(x)
+
+        x = np.array([1, 2, 3], dtype='<i4')
+        self._check_roundtrip(x)
+
+        # check long long can be represented as non-native
+        x = np.array([1, 2, 3], dtype='>q')
+        self._check_roundtrip(x)
+
+        # Native-only data types can be passed through the buffer interface
+        # only in native byte order
+        if sys.byteorder == 'little':
+            x = np.array([1, 2, 3], dtype='>g')
+            assert_raises(ValueError, self._check_roundtrip, x)
+            x = np.array([1, 2, 3], dtype='<g')
+            self._check_roundtrip(x)
+        else:
+            x = np.array([1, 2, 3], dtype='>g')
+            self._check_roundtrip(x)
+            x = np.array([1, 2, 3], dtype='<g')
+            assert_raises(ValueError, self._check_roundtrip, x)
+
+    def test_roundtrip_half(self):
+        half_list = [
+            1.0,
+            -2.0,
+            6.5504 * 10**4,  # (max half precision)
+            2**-14,  # ~= 6.10352 * 10**-5 (minimum positive normal)
+            2**-24,  # ~= 5.96046 * 10**-8 (minimum strictly positive subnormal)
+            0.0,
+            -0.0,
+            float('+inf'),
+            float('-inf'),
+            0.333251953125,  # ~= 1/3
+        ]
+
+        x = np.array(half_list, dtype='>e')
+        self._check_roundtrip(x)
+        x = np.array(half_list, dtype='<e')
+        self._check_roundtrip(x)
+
+    def test_roundtrip_single_types(self):
+        for typ in np._core.sctypeDict.values():
+            dtype = np.dtype(typ)
+
+            if dtype.char in 'Mm':
+                # datetimes cannot be used in buffers
+                continue
+            if dtype.char == 'V':
+                # skip void
+                continue
+
+            x = np.zeros(4, dtype=dtype)
+            self._check_roundtrip(x)
+
+            if dtype.char not in 'qQgG':
+                dt = dtype.newbyteorder('<')
+                x = np.zeros(4, dtype=dt)
+                self._check_roundtrip(x)
+
+                dt = dtype.newbyteorder('>')
+                x = np.zeros(4, dtype=dt)
+                self._check_roundtrip(x)
+
+    def test_roundtrip_scalar(self):
+        # Issue #4015.
+        self._check_roundtrip(0)
+
+    def test_invalid_buffer_format(self):
+        # datetime64 cannot be used fully in a buffer yet
+        # Should be fixed in the next Numpy major release
+        dt = np.dtype([('a', 'uint16'), ('b', 'M8[s]')])
+        a = np.empty(3, dt)
+        assert_raises((ValueError, BufferError), memoryview, a)
+        assert_raises((ValueError, BufferError), memoryview, np.array((3), 'M8[D]'))
+
+    def test_export_simple_1d(self):
+        x = np.array([1, 2, 3, 4, 5], dtype='i')
+        y = memoryview(x)
+        assert_equal(y.format, 'i')
+        assert_equal(y.shape, (5,))
+        assert_equal(y.ndim, 1)
+        assert_equal(y.strides, (4,))
+        assert_equal(y.suboffsets, ())
+        assert_equal(y.itemsize, 4)
+
+    def test_export_simple_nd(self):
+        x = np.array([[1, 2], [3, 4]], dtype=np.float64)
+        y = memoryview(x)
+        assert_equal(y.format, 'd')
+        assert_equal(y.shape, (2, 2))
+        assert_equal(y.ndim, 2)
+        assert_equal(y.strides, (16, 8))
+        assert_equal(y.suboffsets, ())
+        assert_equal(y.itemsize, 8)
+
+    def test_export_discontiguous(self):
+        x = np.zeros((3, 3, 3), dtype=np.float32)[:, 0, :]
+        y = memoryview(x)
+        assert_equal(y.format, 'f')
+        assert_equal(y.shape, (3, 3))
+        assert_equal(y.ndim, 2)
+        assert_equal(y.strides, (36, 4))
+        assert_equal(y.suboffsets, ())
+        assert_equal(y.itemsize, 4)
+
+    def test_export_record(self):
+        dt = [('a', 'b'),
+              ('b', 'h'),
+              ('c', 'i'),
+              ('d', 'l'),
+              ('dx', 'q'),
+              ('e', 'B'),
+              ('f', 'H'),
+              ('g', 'I'),
+              ('h', 'L'),
+              ('hx', 'Q'),
+              ('i', np.single),
+              ('j', np.double),
+              ('k', np.longdouble),
+              ('ix', np.csingle),
+              ('jx', np.cdouble),
+              ('kx', np.clongdouble),
+              ('l', 'S4'),
+              ('m', 'U4'),
+              ('n', 'V3'),
+              ('o', '?'),
+              ('p', np.half),
+              ]
+        x = np.array(
+                [(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+                    b'aaaa', 'bbbb', b'   ', True, 1.0)],
+                dtype=dt)
+        y = memoryview(x)
+        assert_equal(y.shape, (1,))
+        assert_equal(y.ndim, 1)
+        assert_equal(y.suboffsets, ())
+
+        sz = sum(np.dtype(b).itemsize for a, b in dt)
+        if np.dtype('l').itemsize == 4:
+            assert_equal(y.format, 'T{b:a:=h:b:i:c:l:d:q:dx:B:e:@H:f:=I:g:L:h:Q:hx:f:i:d:j:^g:k:=Zf:ix:Zd:jx:^Zg:kx:4s:l:=4w:m:3x:n:?:o:@e:p:}')
+        else:
+            assert_equal(y.format, 'T{b:a:=h:b:i:c:q:d:q:dx:B:e:@H:f:=I:g:Q:h:Q:hx:f:i:d:j:^g:k:=Zf:ix:Zd:jx:^Zg:kx:4s:l:=4w:m:3x:n:?:o:@e:p:}')
+        assert_equal(y.strides, (sz,))
+        assert_equal(y.itemsize, sz)
+
+    def test_export_subarray(self):
+        x = np.array(([[1, 2], [3, 4]],), dtype=[('a', ('i', (2, 2)))])
+        y = memoryview(x)
+        assert_equal(y.format, 'T{(2,2)i:a:}')
+        assert_equal(y.shape, ())
+        assert_equal(y.ndim, 0)
+        assert_equal(y.strides, ())
+        assert_equal(y.suboffsets, ())
+        assert_equal(y.itemsize, 16)
+
+    def test_export_endian(self):
+        x = np.array([1, 2, 3], dtype='>i')
+        y = memoryview(x)
+        if sys.byteorder == 'little':
+            assert_equal(y.format, '>i')
+        else:
+            assert_equal(y.format, 'i')
+
+        x = np.array([1, 2, 3], dtype='<i')
+        y = memoryview(x)
+        if sys.byteorder == 'little':
+            assert_equal(y.format, 'i')
+        else:
+            assert_equal(y.format, '<i')
+
+    def test_export_flags(self):
+        # Check SIMPLE flag, see also gh-3613 (exception should be BufferError)
+        assert_raises(ValueError,
+                      _multiarray_tests.get_buffer_info,
+                       np.arange(5)[::2], ('SIMPLE',))
+
+    @pytest.mark.parametrize(["obj", "error"], [
+            pytest.param(np.array([1, 2], dtype=rational), ValueError, id="array"),
+            pytest.param(rational(1, 2), TypeError, id="scalar")])
+    def test_export_and_pickle_user_dtype(self, obj, error):
+        # User dtypes should export successfully when FORMAT was not requested.
+        with pytest.raises(error):
+            _multiarray_tests.get_buffer_info(obj, ("STRIDED_RO", "FORMAT"))
+
+        _multiarray_tests.get_buffer_info(obj, ("STRIDED_RO",))
+
+        # This is currently also necessary to implement pickling:
+        pickle_obj = pickle.dumps(obj)
+        res = pickle.loads(pickle_obj)
+        assert_array_equal(res, obj)
+
+    def test_repr_user_dtype(self):
+        dt = np.dtype(rational)
+        assert_equal(repr(dt), 'dtype(rational)')
+
+    def test_padding(self):
+        for j in range(8):
+            x = np.array([(1,), (2,)], dtype={'f0': (int, j)})
+            self._check_roundtrip(x)
+
+    @pytest.mark.thread_unsafe(reason="test result depends on the reference count of a global object")
+    def test_reference_leak(self):
+        if HAS_REFCOUNT:
+            count_1 = sys.getrefcount(np._core._internal)
+        a = np.zeros(4)
+        b = memoryview(a)
+        c = np.asarray(b)
+        if HAS_REFCOUNT:
+            count_2 = sys.getrefcount(np._core._internal)
+            assert_equal(count_1, count_2)
+
+    def test_padded_struct_array(self):
+        dt1 = np.dtype(
+                [('a', 'b'), ('b', 'i'), ('sub', np.dtype('b,i')), ('c', 'i')],
+                align=True)
+        x1 = np.arange(dt1.itemsize, dtype=np.int8).view(dt1)
+        self._check_roundtrip(x1)
+
+        dt2 = np.dtype(
+                [('a', 'b'), ('b', 'i'), ('c', 'b', (3,)), ('d', 'i')],
+                align=True)
+        x2 = np.arange(dt2.itemsize, dtype=np.int8).view(dt2)
+        self._check_roundtrip(x2)
+
+        dt3 = np.dtype(
+                [('a', 'b'), ('b', 'i'), ('c', 'b'), ('d', 'b'),
+                    ('e', 'b'), ('sub', np.dtype('b,i', align=True))])
+        x3 = np.arange(dt3.itemsize, dtype=np.int8).view(dt3)
+        self._check_roundtrip(x3)
+
+    @pytest.mark.valgrind_error(reason="leaks buffer info cache temporarily.")
+    def test_relaxed_strides(self, c=stride_tricks.as_strided(  # noqa: B008
+                                              np.ones((1, 10, 10), dtype='i8'),  # noqa: B008
+                                              strides=(-1, 80, 8)
+                                              )
+                                  ):
+        # Note: c defined as parameter so that it is persistent and leak
+        # checks will notice gh-16934 (buffer info cache leak).
+
+        assert_(memoryview(c).strides == (800, 80, 8))
+
+        # Writing C-contiguous data to a BytesIO buffer should work
+        fd = io.BytesIO()
+        fd.write(c.data)
+
+        fortran = c.T
+        assert_(memoryview(fortran).strides == (8, 80, 800))
+
+        arr = np.ones((1, 10))
+        if arr.flags.f_contiguous:
+            shape, strides = _multiarray_tests.get_buffer_info(
+                    arr, ['F_CONTIGUOUS'])
+            assert_(strides[0] == 8)
+            arr = np.ones((10, 1), order='F')
+            shape, strides = _multiarray_tests.get_buffer_info(
+                    arr, ['C_CONTIGUOUS'])
+            assert_(strides[-1] == 8)
+
+    def test_out_of_order_fields(self):
+        dt = np.dtype({
+            "formats": ['<i4', '<i4'],
+            "names": ['one', 'two'],
+            "offsets": [4, 0],
+            "itemsize": 8
+        })
+
+        # overlapping fields cannot be represented by PEP3118
+        arr = np.empty(1, dt)
+        with assert_raises(ValueError):
+            memoryview(arr)
+
+    def test_max_dims(self):
+        a = np.ones((1,) * 32)
+        self._check_roundtrip(a)
+
+    def test_error_pointer_type(self):
+        # gh-6741
+        m = memoryview(ctypes.pointer(ctypes.c_uint8()))
+        assert_('&' in m.format)
+
+        assert_raises_regex(
+            ValueError, "format string",
+            np.array, m)
+
+    def test_error_message_unsupported(self):
+        # wchar has no corresponding numpy type - if this changes in future, we
+        # need a better way to construct an invalid memoryview format.
+        t = ctypes.c_wchar * 4
+        with assert_raises(ValueError) as cm:
+            np.array(t())
+
+        exc = cm.exception
+        with assert_raises_regex(
+            NotImplementedError,
+            r"Unrepresentable .* 'u' \(UCS-2 strings\)"
+        ):
+            raise exc.__cause__
+
+    def test_ctypes_integer_via_memoryview(self):
+        # gh-11150, due to bpo-10746
+        for c_integer in {ctypes.c_int, ctypes.c_long, ctypes.c_longlong}:
+            value = c_integer(42)
+            with warnings.catch_warnings(record=True):
+                warnings.filterwarnings('always', r'.*\bctypes\b', RuntimeWarning)
+                np.asarray(value)
+
+    def test_ctypes_struct_via_memoryview(self):
+        # gh-10528
+        class foo(ctypes.Structure):
+            _fields_ = [('a', ctypes.c_uint8), ('b', ctypes.c_uint32)]
+        f = foo(a=1, b=2)
+
+        with warnings.catch_warnings(record=True):
+            warnings.filterwarnings('always', r'.*\bctypes\b', RuntimeWarning)
+            arr = np.asarray(f)
+
+        assert_equal(arr['a'], 1)
+        assert_equal(arr['b'], 2)
+        f.a = 3
+        assert_equal(arr['a'], 3)
+
+    @pytest.mark.parametrize("obj", [np.ones(3), np.ones(1, dtype="i,i")[()]])
+    @pytest.mark.thread_unsafe(reason="_multiarray_tests used memoryview, which is thread-unsafe")
+    def test_error_if_stored_buffer_info_is_corrupted(self, obj):
+        """
+        If a user extends a NumPy array before 1.20 and then runs it
+        on NumPy 1.20+. A C-subclassed array might in theory modify
+        the new buffer-info field. This checks that an error is raised
+        if this happens (for buffer export), an error is written on delete.
+        This is a sanity check to help users transition to safe code, it
+        may be deleted at any point.
+        """
+        # corrupt buffer info:
+        _multiarray_tests.corrupt_or_fix_bufferinfo(obj)
+        name = type(obj)
+        with pytest.raises(RuntimeError,
+                    match=f".*{name} appears to be C subclassed"):
+            memoryview(obj)
+        # Fix buffer info again before we delete (or we lose the memory)
+        _multiarray_tests.corrupt_or_fix_bufferinfo(obj)
+
+    def test_no_suboffsets(self):
+        try:
+            import _testbuffer
+        except ImportError:
+            raise pytest.skip("_testbuffer is not available")
+
+        for shape in [(2, 3), (2, 3, 4)]:
+            data = list(range(np.prod(shape)))
+            buffer = _testbuffer.ndarray(data, shape, format='i',
+                                         flags=_testbuffer.ND_PIL)
+            msg = "NumPy currently does not support.*suboffsets"
+            with pytest.raises(BufferError, match=msg):
+                np.asarray(buffer)
+            with pytest.raises(BufferError, match=msg):
+                np.asarray([buffer])
+
+            # Also check (unrelated and more limited but similar) frombuffer:
+            with pytest.raises(BufferError):
+                np.frombuffer(buffer)
+
+
+class TestArrayCreationCopyArgument:
+
+    class RaiseOnBool:
+
+        def __bool__(self):
+            raise ValueError
+
+    true_vals = [True, np._CopyMode.ALWAYS, np.True_]
+    if_needed_vals = [None, np._CopyMode.IF_NEEDED]
+    false_vals = [False, np._CopyMode.NEVER, np.False_]
+
+    def test_scalars(self):
+        # Test both numpy and python scalars
+        for dtype in np.typecodes["All"]:
+            arr = np.zeros((), dtype=dtype)
+            scalar = arr[()]
+            pyscalar = arr.item(0)
+
+            # Test never-copy raises error:
+            assert_raises(ValueError, np.array, pyscalar,
+                            copy=self.RaiseOnBool())
+            assert_raises(ValueError, _multiarray_tests.npy_ensurenocopy,
+                            [1])
+            for copy in self.false_vals:
+                assert_raises(ValueError, np.array, scalar, copy=copy)
+                assert_raises(ValueError, np.array, pyscalar, copy=copy)
+                # Casting with a dtype (to unsigned integers) can be special:
+                with pytest.raises(ValueError):
+                    np.array(pyscalar, dtype=np.int64, copy=copy)
+
+    def test_compatible_cast(self):
+
+        # Some types are compatible even though they are different, no
+        # copy is necessary for them. This is mostly true for some integers
+        def int_types(byteswap=False):
+            int_types = (np.typecodes["Integer"] +
+                         np.typecodes["UnsignedInteger"])
+            for int_type in int_types:
+                yield np.dtype(int_type)
+                if byteswap:
+                    yield np.dtype(int_type).newbyteorder()
+
+        for int1 in int_types():
+            for int2 in int_types(True):
+                arr = np.arange(10, dtype=int1)
+
+                for copy in self.true_vals:
+                    res = np.array(arr, copy=copy, dtype=int2)
+                    assert res is not arr and res.flags.owndata
+                    assert_array_equal(res, arr)
+
+                if int1 == int2:
+                    # Casting is not necessary, base check is sufficient here
+                    for copy in self.if_needed_vals:
+                        res = np.array(arr, copy=copy, dtype=int2)
+                        assert res is arr or res.base is arr
+
+                    for copy in self.false_vals:
+                        res = np.array(arr, copy=copy, dtype=int2)
+                        assert res is arr or res.base is arr
+
+                else:
+                    # Casting is necessary, assert copy works:
+                    for copy in self.if_needed_vals:
+                        res = np.array(arr, copy=copy, dtype=int2)
+                        assert res is not arr and res.flags.owndata
+                        assert_array_equal(res, arr)
+
+                    assert_raises(ValueError, np.array,
+                                  arr, copy=False,
+                                  dtype=int2)
+
+    def test_buffer_interface(self):
+
+        # Buffer interface gives direct memory access (no copy)
+        arr = np.arange(10)
+        view = memoryview(arr)
+
+        # Checking bases is a bit tricky since numpy creates another
+        # memoryview, so use may_share_memory.
+        for copy in self.true_vals:
+            res = np.array(view, copy=copy)
+            assert not np.may_share_memory(arr, res)
+        for copy in self.false_vals:
+            res = np.array(view, copy=copy)
+            assert np.may_share_memory(arr, res)
+        res = np.array(view, copy=np._CopyMode.NEVER)
+        assert np.may_share_memory(arr, res)
+
+    def test_array_interfaces(self):
+        base_arr = np.arange(10)
+
+        # Array interface gives direct memory access (much like a memoryview)
+        class ArrayLike:
+            __array_interface__ = base_arr.__array_interface__
+
+        arr = ArrayLike()
+
+        for copy, val in [(True, None), (np._CopyMode.ALWAYS, None),
+                          (False, arr), (np._CopyMode.IF_NEEDED, arr),
+                          (np._CopyMode.NEVER, arr)]:
+            res = np.array(arr, copy=copy)
+            assert res.base is val
+
+    def test___array__(self):
+        base_arr = np.arange(10)
+
+        class ArrayLike:
+            def __array__(self, dtype=None, copy=None):
+                return base_arr
+
+        arr = ArrayLike()
+
+        for copy in self.true_vals:
+            res = np.array(arr, copy=copy)
+            assert_array_equal(res, base_arr)
+            # An additional copy is no longer forced by NumPy in this case.
+            # NumPy trusts the ArrayLike made a copy:
+            assert res is base_arr
+
+        for copy in self.if_needed_vals + self.false_vals:
+            res = np.array(arr, copy=copy)
+            assert_array_equal(res, base_arr)
+            assert res is base_arr  # numpy trusts the ArrayLike
+
+    def test___array__copy_arg(self):
+        a = np.ones((10, 10), dtype=int)
+
+        assert np.shares_memory(a, a.__array__())
+        assert not np.shares_memory(a, a.__array__(float))
+        assert not np.shares_memory(a, a.__array__(float, copy=None))
+        assert not np.shares_memory(a, a.__array__(copy=True))
+        assert np.shares_memory(a, a.__array__(copy=None))
+        assert np.shares_memory(a, a.__array__(copy=False))
+        assert np.shares_memory(a, a.__array__(int, copy=False))
+        with pytest.raises(ValueError):
+            np.shares_memory(a, a.__array__(float, copy=False))
+
+        base_arr = np.arange(10)
+
+        class ArrayLikeNoCopy:
+            def __array__(self, dtype=None):
+                return base_arr
+
+        a = ArrayLikeNoCopy()
+
+        # explicitly passing copy=None shouldn't raise a warning
+        arr = np.array(a, copy=None)
+        assert_array_equal(arr, base_arr)
+        assert arr is base_arr
+
+        # As of NumPy 2.1, explicitly passing copy=True does trigger passing
+        # it to __array__ (deprecation warning is triggered).
+        with pytest.warns(DeprecationWarning,
+                          match="__array__.*must implement.*'copy'"):
+            arr = np.array(a, copy=True)
+        assert_array_equal(arr, base_arr)
+        assert arr is not base_arr
+
+        # And passing copy=False gives a deprecation warning, but also raises
+        # an error:
+        with pytest.warns(DeprecationWarning, match="__array__.*'copy'"):
+            with pytest.raises(ValueError,
+                    match=r"Unable to avoid copy(.|\n)*numpy_2_0_migration_guide.html"):
+                np.array(a, copy=False)
+
+    def test___array__copy_once(self):
+        size = 100
+        base_arr = np.zeros((size, size))
+        copy_arr = np.zeros((size, size))
+
+        class ArrayRandom:
+            def __init__(self):
+                self.true_passed = False
+
+            def __array__(self, dtype=None, copy=None):
+                if copy:
+                    self.true_passed = True
+                    return copy_arr
+                else:
+                    return base_arr
+
+        arr_random = ArrayRandom()
+        first_copy = np.array(arr_random, copy=True)
+        assert arr_random.true_passed
+        assert first_copy is copy_arr
+
+        arr_random = ArrayRandom()
+        no_copy = np.array(arr_random, copy=False)
+        assert not arr_random.true_passed
+        assert no_copy is base_arr
+
+        arr_random = ArrayRandom()
+        _ = np.array([arr_random], copy=True)
+        assert not arr_random.true_passed
+
+        arr_random = ArrayRandom()
+        second_copy = np.array(arr_random, copy=True, order="F")
+        assert arr_random.true_passed
+        assert second_copy is not copy_arr
+
+        arr_random = ArrayRandom()
+        arr = np.ones((size, size))
+        arr[...] = arr_random
+        assert not arr_random.true_passed
+        assert not np.shares_memory(arr, base_arr)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test__array__reference_leak(self):
+        class NotAnArray:
+            def __array__(self, dtype=None, copy=None):
+                raise NotImplementedError
+
+        x = NotAnArray()
+
+        refcount = sys.getrefcount(x)
+
+        try:
+            np.array(x)
+        except NotImplementedError:
+            pass
+
+        gc.collect()
+
+        assert refcount == sys.getrefcount(x)
+
+    @pytest.mark.parametrize(
+            "arr", [np.ones(()), np.arange(81).reshape((9, 9))])
+    @pytest.mark.parametrize("order1", ["C", "F", None])
+    @pytest.mark.parametrize("order2", ["C", "F", "A", "K"])
+    def test_order_mismatch(self, arr, order1, order2):
+        # The order is the main (python side) reason that can cause
+        # a never-copy to fail.
+        # Prepare C-order, F-order and non-contiguous arrays:
+        arr = arr.copy(order1)
+        if order1 == "C":
+            assert arr.flags.c_contiguous
+        elif order1 == "F":
+            assert arr.flags.f_contiguous
+        elif arr.ndim != 0:
+            # Make array non-contiguous
+            arr = arr[::2, ::2]
+            assert not arr.flags.forc
+
+        # Whether a copy is necessary depends on the order of arr:
+        if order2 == "C":
+            no_copy_necessary = arr.flags.c_contiguous
+        elif order2 == "F":
+            no_copy_necessary = arr.flags.f_contiguous
+        else:
+            # Keeporder and Anyorder are OK with non-contiguous output.
+            # This is not consistent with the `astype` behaviour which
+            # enforces contiguity for "A". It is probably historic from when
+            # "K" did not exist.
+            no_copy_necessary = True
+
+        # Test it for both the array and a memoryview
+        for view in [arr, memoryview(arr)]:
+            for copy in self.true_vals:
+                res = np.array(view, copy=copy, order=order2)
+                assert res is not arr and res.flags.owndata
+                assert_array_equal(arr, res)
+
+            if no_copy_necessary:
+                for copy in self.if_needed_vals + self.false_vals:
+                    res = np.array(view, copy=copy, order=order2)
+                    # res.base.obj refers to the memoryview
+                    if not IS_PYPY:
+                        assert res is arr or res.base.obj is arr
+            else:
+                for copy in self.if_needed_vals:
+                    res = np.array(arr, copy=copy, order=order2)
+                    assert_array_equal(arr, res)
+                for copy in self.false_vals:
+                    assert_raises(ValueError, np.array,
+                                  view, copy=copy, order=order2)
+
+    def test_striding_not_ok(self):
+        arr = np.array([[1, 2, 4], [3, 4, 5]])
+        assert_raises(ValueError, np.array,
+                      arr.T, copy=np._CopyMode.NEVER,
+                      order='C')
+        assert_raises(ValueError, np.array,
+                      arr.T, copy=np._CopyMode.NEVER,
+                      order='C', dtype=np.int64)
+        assert_raises(ValueError, np.array,
+                      arr, copy=np._CopyMode.NEVER,
+                      order='F')
+        assert_raises(ValueError, np.array,
+                      arr, copy=np._CopyMode.NEVER,
+                      order='F', dtype=np.int64)
+
+
+class TestArrayAttributeDeletion:
+
+    def test_multiarray_writable_attributes_deletion(self):
+        # ticket #2046, should not seqfault, raise AttributeError
+        a = np.ones(2)
+        attr = ['shape', 'strides', 'data', 'dtype', 'real', 'imag', 'flat']
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore', "Assigning the 'data' attribute", DeprecationWarning)
+            for s in attr:
+                assert_raises(AttributeError, delattr, a, s)
+
+    def test_multiarray_not_writable_attributes_deletion(self):
+        a = np.ones(2)
+        attr = ["ndim", "flags", "itemsize", "size", "nbytes", "base",
+                "ctypes", "T", "__array_interface__", "__array_struct__",
+                "__array_priority__", "__array_finalize__"]
+        for s in attr:
+            assert_raises(AttributeError, delattr, a, s)
+
+    def test_multiarray_flags_writable_attribute_deletion(self):
+        a = np.ones(2).flags
+        attr = ['writebackifcopy', 'updateifcopy', 'aligned', 'writeable']
+        for s in attr:
+            assert_raises(AttributeError, delattr, a, s)
+
+    def test_multiarray_flags_not_writable_attribute_deletion(self):
+        a = np.ones(2).flags
+        attr = ["contiguous", "c_contiguous", "f_contiguous", "fortran",
+                "owndata", "fnc", "forc", "behaved", "carray", "farray",
+                "num"]
+        for s in attr:
+            assert_raises(AttributeError, delattr, a, s)
+
+
+class TestArrayInterface:
+    class Foo:
+        def __init__(self, value):
+            self.value = value
+            self.iface = {'typestr': 'f8'}
+
+        def __float__(self):
+            return float(self.value)
+
+        @property
+        def __array_interface__(self):
+            return self.iface
+
+    f = Foo(0.5)
+
+    @pytest.mark.parametrize('val, iface, expected', [
+        (f, {}, 0.5),
+        ([f], {}, [0.5]),
+        ([f, f], {}, [0.5, 0.5]),
+        (f, {'shape': ()}, 0.5),
+        (f, {'shape': None}, TypeError),
+        (f, {'shape': (1, 1)}, [[0.5]]),
+        (f, {'shape': (2,)}, ValueError),
+        (f, {'strides': ()}, 0.5),
+        (f, {'strides': (2,)}, ValueError),
+        (f, {'strides': 16}, TypeError),
+        # This fails due to going into the buffer protocol path
+        (f, {'data': None, 'shape': ()}, TypeError),
+        ])
+    @pytest.mark.thread_unsafe(reason="test result depends on the reference count of a global object")
+    def test_scalar_interface(self, val, iface, expected):
+        # Test scalar coercion within the array interface
+        self.f.iface = {'typestr': 'f8'}
+        self.f.iface.update(iface)
+        if HAS_REFCOUNT:
+            pre_cnt = sys.getrefcount(np.dtype('f8'))
+        if isinstance(expected, type):
+            assert_raises(expected, np.array, val)
+        else:
+            result = np.array(val)
+            assert_equal(np.array(val), expected)
+            assert result.dtype == 'f8'
+            del result
+        if HAS_REFCOUNT:
+            post_cnt = sys.getrefcount(np.dtype('f8'))
+            assert_equal(pre_cnt, post_cnt)
+
+
+def test_interface_empty_shape():
+    class ArrayLike:
+        array = np.array(1)
+        __array_interface__ = array.__array_interface__
+    assert_equal(np.array(ArrayLike()), 1)
+
+
+def test_interface_no_shape_error():
+    class ArrayLike:
+        __array_interface__ = {"data": None, "typestr": "f8"}
+
+    with pytest.raises(ValueError, match="Missing __array_interface__ shape"):
+        np.array(ArrayLike())
+
+
+@pytest.mark.parametrize("iface", [
+    {"typestr": "f8", "shape": (0, 1)},
+    {"typestr": "(0,)f8,", "shape": (1, 3)},
+])
+def test_interface_nullptr(iface):
+    iface.update({"data": (0, True)})
+
+    class ArrayLike:
+        __array_interface__ = iface
+
+    arr = np.asarray(ArrayLike())
+    # Note, we currently set the base anyway, but we do an allocation
+    # (because NumPy doesn't like NULL data pointers everywhere).
+    assert arr.shape == iface["shape"]
+    assert arr.dtype == np.dtype(iface["typestr"])
+    assert arr.base is not None
+    assert arr.flags.owndata
+
+
+def test_interface_nullptr_size_check():
+    # Note that prior to NumPy 2.4 the below took the scalar path (if shape had size 1)
+    class ArrayLike:
+        __array_interface__ = {"data": (0, True), "typestr": "f8", "shape": ()}
+
+    with pytest.raises(ValueError, match="data is NULL but array contains data"):
+        np.array(ArrayLike())
+
+
+def test_array_interface_itemsize():
+    # See gh-6361
+    my_dtype = np.dtype({'names': ['A', 'B'], 'formats': ['f4', 'f4'],
+                         'offsets': [0, 8], 'itemsize': 16})
+    a = np.ones(10, dtype=my_dtype)
+    descr_t = np.dtype(a.__array_interface__['descr'])
+    typestr_t = np.dtype(a.__array_interface__['typestr'])
+    assert_equal(descr_t.itemsize, typestr_t.itemsize)
+
+
+def test_array_interface_empty_shape():
+    # See gh-7994
+    arr = np.array([1, 2, 3])
+    interface1 = dict(arr.__array_interface__)
+    interface1['shape'] = ()
+
+    class DummyArray1:
+        __array_interface__ = interface1
+
+    # NOTE: Because Py2 str/Py3 bytes supports the buffer interface, setting
+    # the interface data to bytes would invoke the bug this tests for, that
+    # __array_interface__ with shape=() is not allowed if the data is an object
+    # exposing the buffer interface
+    interface2 = dict(interface1)
+    interface2['data'] = arr[0].tobytes()
+
+    class DummyArray2:
+        __array_interface__ = interface2
+
+    arr1 = np.asarray(DummyArray1())
+    arr2 = np.asarray(DummyArray2())
+    arr3 = arr[:1].reshape(())
+    assert_equal(arr1, arr2)
+    assert_equal(arr1, arr3)
+
+def test_array_interface_offset():
+    arr = np.array([1, 2, 3], dtype='int32')
+    interface = dict(arr.__array_interface__)
+    interface['data'] = memoryview(arr)
+    interface['shape'] = (2,)
+    interface['offset'] = 4
+
+    class DummyArray:
+        __array_interface__ = interface
+
+    arr1 = np.asarray(DummyArray())
+    assert_equal(arr1, arr[1:])
+
+def test_array_interface_unicode_typestr():
+    arr = np.array([1, 2, 3], dtype='int32')
+    interface = dict(arr.__array_interface__)
+    interface['typestr'] = '\N{check mark}'
+
+    class DummyArray:
+        __array_interface__ = interface
+
+    # should not be UnicodeEncodeError
+    with pytest.raises(TypeError):
+        np.asarray(DummyArray())
+
+def test_flat_element_deletion():
+    it = np.ones(3).flat
+    try:
+        del it[1]
+        del it[1:2]
+    except TypeError:
+        pass
+    except Exception:
+        raise AssertionError
+
+
+def test_scalar_element_deletion():
+    a = np.zeros(2, dtype=[('x', 'int'), ('y', 'int')])
+    assert_raises(ValueError, a[0].__delitem__, 'x')
+
+
+class TestAsCArray:
+    def test_1darray(self):
+        array = np.arange(24, dtype=np.double)
+        from_c = _multiarray_tests.test_as_c_array(array, 3)
+        assert_equal(array[3], from_c)
+
+    def test_2darray(self):
+        array = np.arange(24, dtype=np.double).reshape(3, 8)
+        from_c = _multiarray_tests.test_as_c_array(array, 2, 4)
+        assert_equal(array[2, 4], from_c)
+
+    def test_3darray(self):
+        array = np.arange(24, dtype=np.double).reshape(2, 3, 4)
+        from_c = _multiarray_tests.test_as_c_array(array, 1, 2, 3)
+        assert_equal(array[1, 2, 3], from_c)
+
+
+class TestConversion:
+    def test_array_scalar_relational_operation(self):
+        # All integer
+        for dt1 in np.typecodes['AllInteger']:
+            assert_(1 > np.array(0, dtype=dt1), f"type {dt1} failed")
+            assert_(not 1 < np.array(0, dtype=dt1), f"type {dt1} failed")
+
+            for dt2 in np.typecodes['AllInteger']:
+                assert_(np.array(1, dtype=dt1) > np.array(0, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+                assert_(not np.array(1, dtype=dt1) < np.array(0, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+
+        # Unsigned integers
+        for dt1 in 'BHILQP':
+            assert_(-1 < np.array(1, dtype=dt1), f"type {dt1} failed")
+            assert_(not -1 > np.array(1, dtype=dt1), f"type {dt1} failed")
+            assert_(-1 != np.array(1, dtype=dt1), f"type {dt1} failed")
+
+            # Unsigned vs signed
+            for dt2 in 'bhilqp':
+                assert_(np.array(1, dtype=dt1) > np.array(-1, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+                assert_(not np.array(1, dtype=dt1) < np.array(-1, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+                assert_(np.array(1, dtype=dt1) != np.array(-1, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+
+        # Signed integers and floats
+        for dt1 in 'bhlqp' + np.typecodes['Float']:
+            assert_(1 > np.array(-1, dtype=dt1), f"type {dt1} failed")
+            assert_(not 1 < np.array(-1, dtype=dt1), f"type {dt1} failed")
+            assert_(-1 == np.array(-1, dtype=dt1), f"type {dt1} failed")
+
+            for dt2 in 'bhlqp' + np.typecodes['Float']:
+                assert_(np.array(1, dtype=dt1) > np.array(-1, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+                assert_(not np.array(1, dtype=dt1) < np.array(-1, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+                assert_(np.array(-1, dtype=dt1) == np.array(-1, dtype=dt2),
+                        f"type {dt1} and {dt2} failed")
+
+    def test_to_bool_scalar(self):
+        assert_equal(bool(np.array([False])), False)
+        assert_equal(bool(np.array([True])), True)
+        assert_equal(bool(np.array([[42]])), True)
+
+    def test_to_bool_scalar_not_convertible(self):
+
+        class NotConvertible:
+            def __bool__(self):
+                raise NotImplementedError
+
+        assert_raises(NotImplementedError, bool, np.array(NotConvertible()))
+        assert_raises(NotImplementedError, bool, np.array([NotConvertible()]))
+        if IS_PYSTON:
+            pytest.skip("Pyston disables recursion checking")
+        if IS_WASM:
+            pytest.skip("Pyodide/WASM has limited stack size")
+
+        self_containing = np.array([None])
+        self_containing[0] = self_containing
+
+        Error = RecursionError
+
+        assert_raises(Error, bool, self_containing)  # previously stack overflow
+        self_containing[0] = None  # resolve circular reference
+
+    def test_to_bool_scalar_size_errors(self):
+        with pytest.raises(ValueError, match=".*one element is ambiguous"):
+            bool(np.array([1, 2]))
+
+        with pytest.raises(ValueError, match=".*empty array is ambiguous"):
+            bool(np.empty((3, 0)))
+
+        with pytest.raises(ValueError, match=".*empty array is ambiguous"):
+            bool(np.empty((0,)))
+
+    def test_to_int_scalar(self):
+        # gh-9972 means that these aren't always the same
+        int_funcs = (int, lambda x: x.__int__())
+        for int_func in int_funcs:
+            assert_equal(int_func(np.array(0)), 0)
+            assert_raises(TypeError, int_func, np.array([1]))
+            assert_raises(TypeError, int_func, np.array([[42]]))
+            assert_raises(TypeError, int_func, np.array([1, 2]))
+
+            # gh-9972
+            assert_equal(4, int_func(np.array('4')))
+            assert_equal(5, int_func(np.bytes_(b'5')))
+            assert_equal(6, int_func(np.str_('6')))
+
+            class NotConvertible:
+                def __int__(self):
+                    raise NotImplementedError
+            assert_raises(NotImplementedError,
+                int_func, np.array(NotConvertible()))
+            assert_raises(TypeError,
+                int_func, np.array([NotConvertible()]))
+
+    def test_to_float_scalar(self):
+        float_funcs = (float, lambda x: x.__float__())
+        for float_func in float_funcs:
+            assert_equal(float_func(np.array(0)), 0.0)
+            assert_equal(float_func(np.array(1.0, np.float64)), 1.0)
+            assert_raises(TypeError, float_func, np.array([2]))
+            assert_raises(TypeError, float_func, np.array([3.14]))
+            assert_raises(TypeError, float_func, np.array([[4.0]]))
+
+            assert_equal(5.0, float_func(np.array('5')))
+            assert_equal(5.1, float_func(np.array('5.1')))
+            assert_equal(6.0, float_func(np.bytes_(b'6')))
+            assert_equal(6.1, float_func(np.bytes_(b'6.1')))
+            assert_equal(7.0, float_func(np.str_('7')))
+            assert_equal(7.1, float_func(np.str_('7.1')))
+
+
+class TestWhere:
+    def test_basic(self):
+        dts = [bool, np.int16, np.int32, np.int64, np.double, np.complex128,
+               np.longdouble, np.clongdouble]
+        for dt in dts:
+            c = np.ones(53, dtype=bool)
+            assert_equal(np.where( c, dt(0), dt(1)), dt(0))
+            assert_equal(np.where(~c, dt(0), dt(1)), dt(1))
+            assert_equal(np.where(True, dt(0), dt(1)), dt(0))
+            assert_equal(np.where(False, dt(0), dt(1)), dt(1))
+            d = np.ones_like(c).astype(dt)
+            e = np.zeros_like(d)
+            r = d.astype(dt)
+            c[7] = False
+            r[7] = e[7]
+            assert_equal(np.where(c, e, e), e)
+            assert_equal(np.where(c, d, e), r)
+            assert_equal(np.where(c, d, e[0]), r)
+            assert_equal(np.where(c, d[0], e), r)
+            assert_equal(np.where(c[::2], d[::2], e[::2]), r[::2])
+            assert_equal(np.where(c[1::2], d[1::2], e[1::2]), r[1::2])
+            assert_equal(np.where(c[::3], d[::3], e[::3]), r[::3])
+            assert_equal(np.where(c[1::3], d[1::3], e[1::3]), r[1::3])
+            assert_equal(np.where(c[::-2], d[::-2], e[::-2]), r[::-2])
+            assert_equal(np.where(c[::-3], d[::-3], e[::-3]), r[::-3])
+            assert_equal(np.where(c[1::-3], d[1::-3], e[1::-3]), r[1::-3])
+
+    @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support")
+    def test_exotic(self):
+        # object
+        assert_array_equal(np.where(True, None, None), np.array(None))
+        # zero sized
+        m = np.array([], dtype=bool).reshape(0, 3)
+        b = np.array([], dtype=np.float64).reshape(0, 3)
+        assert_array_equal(np.where(m, 0, b), np.array([]).reshape(0, 3))
+
+        # object cast
+        d = np.array([-1.34, -0.16, -0.54, -0.31, -0.08, -0.95, 0.000, 0.313,
+                      0.547, -0.18, 0.876, 0.236, 1.969, 0.310, 0.699, 1.013,
+                      1.267, 0.229, -1.39, 0.487])
+        nan = float('NaN')
+        e = np.array(['5z', '0l', nan, 'Wz', nan, nan, 'Xq', 'cs', nan, nan,
+                     'QN', nan, nan, 'Fd', nan, nan, 'kp', nan, '36', 'i1'],
+                     dtype=object)
+        m = np.array([0, 0, 1, 0, 1, 1, 0, 0, 1, 1,
+                      0, 1, 1, 0, 1, 1, 0, 1, 0, 0], dtype=bool)
+
+        r = e[:]
+        r[np.where(m)] = d[np.where(m)]
+        assert_array_equal(np.where(m, d, e), r)
+
+        r = e[:]
+        r[np.where(~m)] = d[np.where(~m)]
+        assert_array_equal(np.where(m, e, d), r)
+
+        assert_array_equal(np.where(m, e, e), e)
+
+        # minimal dtype result with NaN scalar (e.g required by pandas)
+        d = np.array([1., 2.], dtype=np.float32)
+        e = float('NaN')
+        assert_equal(np.where(True, d, e).dtype, np.float32)
+        e = float('Infinity')
+        assert_equal(np.where(True, d, e).dtype, np.float32)
+        e = float('-Infinity')
+        assert_equal(np.where(True, d, e).dtype, np.float32)
+        # With NEP 50 adopted, the float will overflow here:
+        e = 1e150
+        with pytest.warns(RuntimeWarning, match="overflow"):
+            res = np.where(True, d, e)
+        assert res.dtype == np.float32
+
+    def test_ndim(self):
+        c = [True, False]
+        a = np.zeros((2, 25))
+        b = np.ones((2, 25))
+        r = np.where(np.array(c)[:, np.newaxis], a, b)
+        assert_array_equal(r[0], a[0])
+        assert_array_equal(r[1], b[0])
+
+        a = a.T
+        b = b.T
+        r = np.where(c, a, b)
+        assert_array_equal(r[:, 0], a[:, 0])
+        assert_array_equal(r[:, 1], b[:, 0])
+
+    def test_dtype_mix(self):
+        c = np.array([False, True, False, False, False, False, True, False,
+                     False, False, True, False])
+        a = np.uint32(1)
+        b = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.],
+                      dtype=np.float64)
+        r = np.array([5., 1., 3., 2., -1., -4., 1., -10., 10., 1., 1., 3.],
+                     dtype=np.float64)
+        assert_equal(np.where(c, a, b), r)
+
+        a = a.astype(np.float32)
+        b = b.astype(np.int64)
+        assert_equal(np.where(c, a, b), r)
+
+        # non bool mask
+        c = c.astype(int)
+        c[c != 0] = 34242324
+        assert_equal(np.where(c, a, b), r)
+        # invert
+        tmpmask = c != 0
+        c[c == 0] = 41247212
+        c[tmpmask] = 0
+        assert_equal(np.where(c, b, a), r)
+
+    def test_foreign(self):
+        c = np.array([False, True, False, False, False, False, True, False,
+                     False, False, True, False])
+        r = np.array([5., 1., 3., 2., -1., -4., 1., -10., 10., 1., 1., 3.],
+                     dtype=np.float64)
+        a = np.ones(1, dtype='>i4')
+        b = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.],
+                     dtype=np.float64)
+        assert_equal(np.where(c, a, b), r)
+
+        b = b.astype('>f8')
+        assert_equal(np.where(c, a, b), r)
+
+        a = a.astype('<i4')
+        assert_equal(np.where(c, a, b), r)
+
+        c = c.astype('>i4')
+        assert_equal(np.where(c, a, b), r)
+
+    def test_error(self):
+        c = [True, True]
+        a = np.ones((4, 5))
+        b = np.ones((5, 5))
+        assert_raises(ValueError, np.where, c, a, a)
+        assert_raises(ValueError, np.where, c[0], a, b)
+
+    def test_string(self):
+        # gh-4778 check strings are properly filled with nulls
+        a = np.array("abc")
+        b = np.array("x" * 753)
+        assert_equal(np.where(True, a, b), "abc")
+        assert_equal(np.where(False, b, a), "abc")
+
+        # check native datatype sized strings
+        a = np.array("abcd")
+        b = np.array("x" * 8)
+        assert_equal(np.where(True, a, b), "abcd")
+        assert_equal(np.where(False, b, a), "abcd")
+
+    def test_empty_result(self):
+        # pass empty where result through an assignment which reads the data of
+        # empty arrays, error detectable with valgrind, see gh-8922
+        x = np.zeros((1, 1))
+        ibad = np.vstack(np.where(x == 99.))
+        assert_array_equal(ibad,
+                           np.atleast_2d(np.array([[], []], dtype=np.intp)))
+
+    def test_largedim(self):
+        # invalid read regression gh-9304
+        shape = [10, 2, 3, 4, 5, 6]
+        np.random.seed(2)
+        array = np.random.rand(*shape)
+
+        for i in range(10):
+            benchmark = array.nonzero()
+            result = array.nonzero()
+            assert_array_equal(benchmark, result)
+
+    def test_kwargs(self):
+        a = np.zeros(1)
+        with assert_raises(TypeError):
+            np.where(a, x=a, y=a)
+
+
+if not IS_PYPY:
+    # sys.getsizeof() is not valid on PyPy
+    class TestSizeOf:
+
+        def test_empty_array(self):
+            x = np.array([])
+            assert_(sys.getsizeof(x) > 0)
+
+        def check_array(self, dtype):
+            elem_size = dtype(0).itemsize
+
+            for length in [10, 50, 100, 500]:
+                x = np.arange(length, dtype=dtype)
+                assert_(sys.getsizeof(x) > length * elem_size)
+
+        def test_array_int32(self):
+            self.check_array(np.int32)
+
+        def test_array_int64(self):
+            self.check_array(np.int64)
+
+        def test_array_float32(self):
+            self.check_array(np.float32)
+
+        def test_array_float64(self):
+            self.check_array(np.float64)
+
+        def test_view(self):
+            d = np.ones(100)
+            assert_(sys.getsizeof(d[...]) < sys.getsizeof(d))
+
+        def test_reshape(self):
+            d = np.ones(100)
+            assert_(sys.getsizeof(d) < sys.getsizeof(d.reshape(100, 1, 1).copy()))
+
+        @_no_tracing
+        def test_resize(self):
+            d = np.ones(100)
+            old = sys.getsizeof(d)
+            d.resize(50)
+            assert_(old > sys.getsizeof(d))
+            d.resize(150)
+            assert_(old < sys.getsizeof(d))
+
+        @pytest.mark.parametrize("dtype", ["u4,f4", "u4,O"])
+        def test_resize_structured(self, dtype):
+            a = np.array([(0, 0.0) for i in range(5)], dtype=dtype)
+            a.resize(1000)
+            assert_array_equal(a, np.zeros(1000, dtype=dtype))
+
+        def test_error(self):
+            d = np.ones(100)
+            assert_raises(TypeError, d.__sizeof__, "a")
+
+
+class TestHashing:
+
+    def test_arrays_not_hashable(self):
+        x = np.ones(3)
+        assert_raises(TypeError, hash, x)
+
+    def test_collections_hashable(self):
+        x = np.array([])
+        assert_(not isinstance(x, collections.abc.Hashable))
+
+
+class TestArrayPriority:
+    # This will go away when __array_priority__ is settled, meanwhile
+    # it serves to check unintended changes.
+    op = operator
+    binary_ops = [
+        op.pow, op.add, op.sub, op.mul, op.floordiv, op.truediv, op.mod,
+        op.and_, op.or_, op.xor, op.lshift, op.rshift, op.mod, op.gt,
+        op.ge, op.lt, op.le, op.ne, op.eq
+        ]
+
+    class Foo(np.ndarray):
+        __array_priority__ = 100.
+
+        def __new__(cls, *args, **kwargs):
+            return np.array(*args, **kwargs).view(cls)
+
+    class Bar(np.ndarray):
+        __array_priority__ = 101.
+
+        def __new__(cls, *args, **kwargs):
+            return np.array(*args, **kwargs).view(cls)
+
+    class Other:
+        __array_priority__ = 1000.
+
+        def _all(self, other):
+            return self.__class__()
+
+        __add__ = __radd__ = _all
+        __sub__ = __rsub__ = _all
+        __mul__ = __rmul__ = _all
+        __pow__ = __rpow__ = _all
+        __mod__ = __rmod__ = _all
+        __truediv__ = __rtruediv__ = _all
+        __floordiv__ = __rfloordiv__ = _all
+        __and__ = __rand__ = _all
+        __xor__ = __rxor__ = _all
+        __or__ = __ror__ = _all
+        __lshift__ = __rlshift__ = _all
+        __rshift__ = __rrshift__ = _all
+        __eq__ = _all
+        __ne__ = _all
+        __gt__ = _all
+        __ge__ = _all
+        __lt__ = _all
+        __le__ = _all
+
+    def test_ndarray_subclass(self):
+        a = np.array([1, 2])
+        b = self.Bar([1, 2])
+        for f in self.binary_ops:
+            msg = repr(f)
+            assert_(isinstance(f(a, b), self.Bar), msg)
+            assert_(isinstance(f(b, a), self.Bar), msg)
+
+    def test_ndarray_other(self):
+        a = np.array([1, 2])
+        b = self.Other()
+        for f in self.binary_ops:
+            msg = repr(f)
+            assert_(isinstance(f(a, b), self.Other), msg)
+            assert_(isinstance(f(b, a), self.Other), msg)
+
+    def test_subclass_subclass(self):
+        a = self.Foo([1, 2])
+        b = self.Bar([1, 2])
+        for f in self.binary_ops:
+            msg = repr(f)
+            assert_(isinstance(f(a, b), self.Bar), msg)
+            assert_(isinstance(f(b, a), self.Bar), msg)
+
+    def test_subclass_other(self):
+        a = self.Foo([1, 2])
+        b = self.Other()
+        for f in self.binary_ops:
+            msg = repr(f)
+            assert_(isinstance(f(a, b), self.Other), msg)
+            assert_(isinstance(f(b, a), self.Other), msg)
+
+
+class TestBytestringArrayNonzero:
+
+    def test_empty_bstring_array_is_falsey(self):
+        assert_(not np.array([''], dtype=str))
+
+    def test_whitespace_bstring_array_is_truthy(self):
+        a = np.array(['spam'], dtype=str)
+        a[0] = '  \0\0'
+        assert_(a)
+
+    def test_all_null_bstring_array_is_falsey(self):
+        a = np.array(['spam'], dtype=str)
+        a[0] = '\0\0\0\0'
+        assert_(not a)
+
+    def test_null_inside_bstring_array_is_truthy(self):
+        a = np.array(['spam'], dtype=str)
+        a[0] = ' \0 \0'
+        assert_(a)
+
+
+class TestUnicodeEncoding:
+    """
+    Tests for encoding related bugs, such as UCS2 vs UCS4, round-tripping
+    issues, etc
+    """
+    def test_round_trip(self):
+        """ Tests that GETITEM, SETITEM, and PyArray_Scalar roundtrip """
+        # gh-15363
+        arr = np.zeros(shape=(), dtype="U1")
+        for i in range(1, sys.maxunicode + 1):
+            expected = chr(i)
+            arr[()] = expected
+            assert arr[()] == expected
+            assert arr.item() == expected
+
+    def test_assign_scalar(self):
+        # gh-3258
+        l = np.array(['aa', 'bb'])
+        l[:] = np.str_('cc')
+        assert_equal(l, ['cc', 'cc'])
+
+    def test_fill_scalar(self):
+        # gh-7227
+        l = np.array(['aa', 'bb'])
+        l.fill(np.str_('cc'))
+        assert_equal(l, ['cc', 'cc'])
+
+
+class TestUnicodeArrayNonzero:
+
+    def test_empty_ustring_array_is_falsey(self):
+        assert_(not np.array([''], dtype=np.str_))
+
+    def test_whitespace_ustring_array_is_truthy(self):
+        a = np.array(['eggs'], dtype=np.str_)
+        a[0] = '  \0\0'
+        assert_(a)
+
+    def test_all_null_ustring_array_is_falsey(self):
+        a = np.array(['eggs'], dtype=np.str_)
+        a[0] = '\0\0\0\0'
+        assert_(not a)
+
+    def test_null_inside_ustring_array_is_truthy(self):
+        a = np.array(['eggs'], dtype=np.str_)
+        a[0] = ' \0 \0'
+        assert_(a)
+
+
+class TestFormat:
+
+    def test_0d(self):
+        a = np.array(np.pi)
+        assert_equal(f'{a:0.3g}', '3.14')
+        assert_equal(f'{a[()]:0.3g}', '3.14')
+
+    def test_1d_no_format(self):
+        a = np.array([np.pi])
+        assert_equal(f'{a}', str(a))
+
+    def test_1d_format(self):
+        # until gh-5543, ensure that the behaviour matches what it used to be
+        a = np.array([np.pi])
+        assert_raises(TypeError, '{:30}'.format, a)
+
+
+from numpy.testing import IS_PYPY
+
+
+class TestCTypes:
+
+    def test_ctypes_is_available(self):
+        test_arr = np.array([[1, 2, 3], [4, 5, 6]])
+
+        assert_equal(ctypes, test_arr.ctypes._ctypes)
+        assert_equal(tuple(test_arr.ctypes.shape), (2, 3))
+
+    @pytest.mark.thread_unsafe(reason="modifies global module state")
+    def test_ctypes_is_not_available(self):
+        from numpy._core import _internal
+        _internal.ctypes = None
+        try:
+            test_arr = np.array([[1, 2, 3], [4, 5, 6]])
+
+            assert_(isinstance(test_arr.ctypes._ctypes,
+                               _internal._missing_ctypes))
+            assert_equal(tuple(test_arr.ctypes.shape), (2, 3))
+        finally:
+            _internal.ctypes = ctypes
+
+    def _make_readonly(x):
+        x.flags.writeable = False
+        return x
+
+    @pytest.mark.thread_unsafe(reason="calls gc.collect()")
+    @pytest.mark.parametrize('arr', [
+        np.array([1, 2, 3]),
+        np.array([['one', 'two'], ['three', 'four']]),
+        np.array((1, 2), dtype='i4,i4'),
+        np.zeros((2,), dtype=np.dtype({
+                "formats": ['<i4', '<i4'],
+                "names": ['a', 'b'],
+                "offsets": [0, 2],
+                "itemsize": 6
+            })
+        ),
+        np.array([None], dtype=object),
+        np.array([]),
+        np.empty((0, 0)),
+        _make_readonly(np.array([1, 2, 3])),
+    ], ids=[
+        '1d',
+        '2d',
+        'structured',
+        'overlapping',
+        'object',
+        'empty',
+        'empty-2d',
+        'readonly'
+    ])
+    def test_ctypes_data_as_holds_reference(self, arr):
+        # gh-9647
+        # create a copy to ensure that pytest does not mess with the refcounts
+        arr = arr.copy()
+
+        arr_ref = weakref.ref(arr)
+
+        ctypes_ptr = arr.ctypes.data_as(ctypes.c_void_p)
+
+        # `ctypes_ptr` should hold onto `arr`
+        del arr
+        break_cycles()
+        assert_(arr_ref() is not None, "ctypes pointer did not hold onto a reference")
+
+        # but when the `ctypes_ptr` object dies, so should `arr`
+        del ctypes_ptr
+        if IS_PYPY:
+            # Pypy does not recycle arr objects immediately. Trigger gc to
+            # release arr. Cpython uses refcounts. An explicit call to gc
+            # should not be needed here.
+            break_cycles()
+        assert_(arr_ref() is None, "unknowable whether ctypes pointer holds a reference")
+
+    @pytest.mark.thread_unsafe(reason="calls gc.collect()")
+    def test_ctypes_as_parameter_holds_reference(self):
+        arr = np.array([None]).copy()
+
+        arr_ref = weakref.ref(arr)
+
+        ctypes_ptr = arr.ctypes._as_parameter_
+
+        # `ctypes_ptr` should hold onto `arr`
+        del arr
+        break_cycles()
+        assert_(arr_ref() is not None, "ctypes pointer did not hold onto a reference")
+
+        # but when the `ctypes_ptr` object dies, so should `arr`
+        del ctypes_ptr
+        if IS_PYPY:
+            break_cycles()
+        assert_(arr_ref() is None, "unknowable whether ctypes pointer holds a reference")
+
+
+class TestWritebackIfCopy:
+    # all these tests use the WRITEBACKIFCOPY mechanism
+    def test_argmax_with_out(self):
+        mat = np.eye(5)
+        out = np.empty(5, dtype='i2')
+        res = np.argmax(mat, 0, out=out)
+        assert_equal(res, range(5))
+
+    def test_argmin_with_out(self):
+        mat = -np.eye(5)
+        out = np.empty(5, dtype='i2')
+        res = np.argmin(mat, 0, out=out)
+        assert_equal(res, range(5))
+
+    def test_insert_noncontiguous(self):
+        a = np.arange(6).reshape(2, 3).T  # force non-c-contiguous
+        # uses arr_insert
+        np.place(a, a > 2, [44, 55])
+        assert_equal(a, np.array([[0, 44], [1, 55], [2, 44]]))
+        # hit one of the failing paths
+        assert_raises(ValueError, np.place, a, a > 20, [])
+
+    def test_put_noncontiguous(self):
+        a = np.arange(6).reshape(2, 3).T  # force non-c-contiguous
+        np.put(a, [0, 2], [44, 55])
+        assert_equal(a, np.array([[44, 3], [55, 4], [2, 5]]))
+
+    def test_putmask_noncontiguous(self):
+        a = np.arange(6).reshape(2, 3).T  # force non-c-contiguous
+        # uses arr_putmask
+        np.putmask(a, a > 2, a**2)
+        assert_equal(a, np.array([[0, 9], [1, 16], [2, 25]]))
+
+    def test_take_mode_raise(self):
+        a = np.arange(6, dtype='int')
+        out = np.empty(2, dtype='int')
+        np.take(a, [0, 2], out=out, mode='raise')
+        assert_equal(out, np.array([0, 2]))
+
+    def test_choose_mod_raise(self):
+        a = np.array([[1, 0, 1], [0, 1, 0], [1, 0, 1]])
+        out = np.empty((3, 3), dtype='int')
+        choices = [-10, 10]
+        np.choose(a, choices, out=out, mode='raise')
+        assert_equal(out, np.array([[ 10, -10,  10],
+                                    [-10,  10, -10],
+                                    [ 10, -10,  10]]))
+
+    def test_flatiter__array__(self):
+        a = np.arange(9).reshape(3, 3)
+        b = a.T.flat
+        c = b.__array__()
+        # triggers the WRITEBACKIFCOPY resolution, assuming refcount semantics
+        del c
+
+    def test_dot_out(self):
+        # if HAVE_CBLAS, will use WRITEBACKIFCOPY
+        a = np.arange(9, dtype=float).reshape(3, 3)
+        b = np.dot(a, a, out=a)
+        assert_equal(b, np.array([[15, 18, 21], [42, 54, 66], [69, 90, 111]]))
+
+    def test_view_assign(self):
+        from numpy._core._multiarray_tests import (
+            npy_create_writebackifcopy,
+            npy_resolve,
+        )
+
+        arr = np.arange(9).reshape(3, 3).T
+        arr_wb = npy_create_writebackifcopy(arr)
+        assert_(arr_wb.flags.writebackifcopy)
+        assert_(arr_wb.base is arr)
+        arr_wb[...] = -100
+        npy_resolve(arr_wb)
+        # arr changes after resolve, even though we assigned to arr_wb
+        assert_equal(arr, -100)
+        # after resolve, the two arrays no longer reference each other
+        assert_(arr_wb.ctypes.data != 0)
+        assert_equal(arr_wb.base, None)
+        # assigning to arr_wb does not get transferred to arr
+        arr_wb[...] = 100
+        assert_equal(arr, -100)
+
+    @pytest.mark.leaks_references(
+            reason="increments self in dealloc; ignore since deprecated path.")
+    def test_dealloc_warning(self):
+        arr = np.arange(9).reshape(3, 3)
+        v = arr.T
+        with pytest.warns(RuntimeWarning):
+            _multiarray_tests.npy_abuse_writebackifcopy(v)
+
+    def test_view_discard_refcount(self):
+        from numpy._core._multiarray_tests import (
+            npy_create_writebackifcopy,
+            npy_discard,
+        )
+
+        arr = np.arange(9).reshape(3, 3).T
+        orig = arr.copy()
+        if HAS_REFCOUNT:
+            arr_cnt = sys.getrefcount(arr)
+        arr_wb = npy_create_writebackifcopy(arr)
+        assert_(arr_wb.flags.writebackifcopy)
+        assert_(arr_wb.base is arr)
+        arr_wb[...] = -100
+        npy_discard(arr_wb)
+        # arr remains unchanged after discard
+        assert_equal(arr, orig)
+        # after discard, the two arrays no longer reference each other
+        assert_(arr_wb.ctypes.data != 0)
+        assert_equal(arr_wb.base, None)
+        if HAS_REFCOUNT:
+            assert_equal(arr_cnt, sys.getrefcount(arr))
+        # assigning to arr_wb does not get transferred to arr
+        arr_wb[...] = 100
+        assert_equal(arr, orig)
+
+
+class TestArange:
+    def test_infinite(self):
+        assert_raises_regex(
+            ValueError, "size exceeded",
+            np.arange, 0, np.inf
+        )
+
+    def test_nan_step(self):
+        assert_raises_regex(
+            ValueError, "cannot compute length",
+            np.arange, 0, 1, np.nan
+        )
+
+    def test_zero_step(self):
+        assert_raises(ZeroDivisionError, np.arange, 0, 10, 0)
+        assert_raises(ZeroDivisionError, np.arange, 0.0, 10.0, 0.0)
+
+        # empty range
+        assert_raises(ZeroDivisionError, np.arange, 0, 0, 0)
+        assert_raises(ZeroDivisionError, np.arange, 0.0, 0.0, 0.0)
+
+    def test_require_range(self):
+        assert_raises(TypeError, np.arange)
+        assert_raises(TypeError, np.arange, step=3)
+        assert_raises(TypeError, np.arange, dtype='int64')
+        assert_raises(TypeError, np.arange, start=4)
+
+    def test_start_stop_kwarg(self):
+        keyword_stop = np.arange(stop=3)
+        keyword_zerotostop = np.arange(0, stop=3)
+        keyword_start_stop = np.arange(start=3, stop=9)
+
+        assert len(keyword_stop) == 3
+        assert len(keyword_zerotostop) == 3
+        assert len(keyword_start_stop) == 6
+        assert_array_equal(keyword_stop, keyword_zerotostop)
+
+    def test_arange_booleans(self):
+        # Arange makes some sense for booleans and works up to length 2.
+        # But it is weird since `arange(2, 4, dtype=bool)` works.
+        # Arguably, much or all of this could be deprecated/removed.
+        res = np.arange(False, dtype=bool)
+        assert_array_equal(res, np.array([], dtype="bool"))
+
+        res = np.arange(True, dtype="bool")
+        assert_array_equal(res, [False])
+
+        res = np.arange(2, dtype="bool")
+        assert_array_equal(res, [False, True])
+
+        # This case is especially weird, but drops out without special case:
+        res = np.arange(6, 8, dtype="bool")
+        assert_array_equal(res, [True, True])
+
+        with pytest.raises(TypeError):
+            np.arange(3, dtype="bool")
+
+    @pytest.mark.parametrize("dtype", ["S3", "U", "5i"])
+    def test_rejects_bad_dtypes(self, dtype):
+        dtype = np.dtype(dtype)
+        DType_name = re.escape(str(type(dtype)))
+        with pytest.raises(TypeError,
+                match=rf"arange\(\) not supported for inputs .* {DType_name}"):
+            np.arange(2, dtype=dtype)
+
+    def test_rejects_strings(self):
+        # Explicitly test error for strings which may call "b" - "a":
+        DType_name = re.escape(str(type(np.array("a").dtype)))
+        with pytest.raises(TypeError,
+                match=rf"arange\(\) not supported for inputs .* {DType_name}"):
+            np.arange("a", "b")
+
+    def test_byteswapped(self):
+        res_be = np.arange(1, 1000, dtype=">i4")
+        res_le = np.arange(1, 1000, dtype="<i4")
+        assert res_be.dtype == ">i4"
+        assert res_le.dtype == "<i4"
+        assert_array_equal(res_le, res_be)
+
+    @pytest.mark.parametrize("which", [0, 1, 2])
+    def test_error_paths_and_promotion(self, which):
+        args = [0, 1, 2]  # start, stop, and step
+        args[which] = np.float64(2.)  # should ensure float64 output
+
+        assert np.arange(*args).dtype == np.float64
+
+        # Cover stranger error path, test only to achieve code coverage!
+        args[which] = [None, []]
+        with pytest.raises(ValueError):
+            # Fails discovering start dtype
+            np.arange(*args)
+
+    def test_dtype_attribute_ignored(self):
+        # Until 2.3 this would raise a DeprecationWarning
+        class dt:
+            dtype = "f8"
+
+        class vdt(np.void):
+            dtype = "f,f"
+
+        assert_raises(ValueError, np.dtype, dt)
+        assert_raises(ValueError, np.dtype, dt())
+        assert_raises(ValueError, np.dtype, vdt)
+        assert_raises(ValueError, np.dtype, vdt(1))
+
+
+class TestDTypeCoercionForbidden:
+    forbidden_types = [
+        # The builtin scalar super types:
+        np.generic, np.flexible, np.number,
+        np.inexact, np.floating, np.complexfloating,
+        np.integer, np.unsignedinteger, np.signedinteger,
+        # character is a deprecated S1 special case:
+        np.character,
+    ]
+
+    def test_dtype_coercion(self):
+        for scalar_type in self.forbidden_types:
+            assert_raises(TypeError, np.dtype, args=(scalar_type,))
+
+    def test_array_construction(self):
+        for scalar_type in self.forbidden_types:
+            assert_raises(TypeError, np.array, args=([], scalar_type,))
+
+    def test_not_deprecated(self):
+        # All specific types work
+        for group in np._core.sctypes.values():
+            for scalar_type in group:
+                np.dtype(scalar_type)
+
+        for scalar_type in [type, dict, list, tuple]:
+            # Typical python types are coerced to object currently:
+            np.dtype(scalar_type)
+
+
+class TestDateTimeCreationTuple:
+    @pytest.mark.parametrize("cls", [np.datetime64, np.timedelta64])
+    def test_dt_tuple(self, cls):
+        # two valid uses - (unit, num) and (unit, num, den, None)
+        cls(1, ('ms', 2))
+        cls(1, ('ms', 2, 1, None))
+
+        # trying to use the event argument, removed in 1.7.0
+        # it used to be a uint8
+        assert_raises(TypeError, cls, args=(1, ('ms', 2, 'event')))
+        assert_raises(TypeError, cls, args=(1, ('ms', 2, 63)))
+        assert_raises(TypeError, cls, args=(1, ('ms', 2, 1, 'event')))
+        assert_raises(TypeError, cls, args=(1, ('ms', 2, 1, 63)))
+
+
+class TestArrayFinalize:
+    """ Tests __array_finalize__ """
+
+    def test_receives_base(self):
+        # gh-11237
+        class SavesBase(np.ndarray):
+            def __array_finalize__(self, obj):
+                self.saved_base = self.base
+
+        a = np.array(1).view(SavesBase)
+        assert_(a.saved_base is a.base)
+
+    def test_bad_finalize1(self):
+        class BadAttributeArray(np.ndarray):
+            @property
+            def __array_finalize__(self):
+                raise RuntimeError("boohoo!")
+
+        with pytest.raises(TypeError, match="not callable"):
+            np.arange(10).view(BadAttributeArray)
+
+    def test_bad_finalize2(self):
+        class BadAttributeArray(np.ndarray):
+            def __array_finalize__(self):
+                raise RuntimeError("boohoo!")
+
+        with pytest.raises(TypeError, match="takes 1 positional"):
+            np.arange(10).view(BadAttributeArray)
+
+    def test_bad_finalize3(self):
+        class BadAttributeArray(np.ndarray):
+            def __array_finalize__(self, obj):
+                raise RuntimeError("boohoo!")
+
+        with pytest.raises(RuntimeError, match="boohoo!"):
+            np.arange(10).view(BadAttributeArray)
+
+    @pytest.mark.thread_unsafe(reason="calls gc.collect()")
+    def test_lifetime_on_error(self):
+        # gh-11237
+        class RaisesInFinalize(np.ndarray):
+            def __array_finalize__(self, obj):
+                # crash, but keep this object alive
+                raise Exception(self)
+
+        # a plain object can't be weakref'd
+        class Dummy:
+            pass
+
+        # get a weak reference to an object within an array
+        obj_arr = np.array(Dummy())
+        obj_ref = weakref.ref(obj_arr[()])
+
+        # get an array that crashed in __array_finalize__
+        with assert_raises(Exception) as e:
+            obj_arr.view(RaisesInFinalize)
+
+        obj_subarray = e.exception.args[0]
+        del e
+        assert_(isinstance(obj_subarray, RaisesInFinalize))
+
+        # reference should still be held by obj_arr
+        break_cycles()
+        assert_(obj_ref() is not None, "object should not already be dead")
+
+        del obj_arr
+        break_cycles()
+        assert_(obj_ref() is not None, "obj_arr should not hold the last reference")
+
+        del obj_subarray
+        break_cycles()
+        assert_(obj_ref() is None, "no references should remain")
+
+    def test_can_use_super(self):
+        class SuperFinalize(np.ndarray):
+            def __array_finalize__(self, obj):
+                self.saved_result = super().__array_finalize__(obj)
+
+        a = np.array(1).view(SuperFinalize)
+        assert_(a.saved_result is None)
+
+
+def test_orderconverter_with_nonASCII_unicode_ordering():
+    # gh-7475
+    a = np.arange(5)
+    assert_raises(ValueError, a.flatten, order='\xe2')
+
+
+def test_equal_override():
+    # gh-9153: ndarray.__eq__ uses special logic for structured arrays, which
+    # did not respect overrides with __array_priority__ or __array_ufunc__.
+    # The PR fixed this for __array_priority__ and __array_ufunc__ = None.
+    class MyAlwaysEqual:
+        def __eq__(self, other):
+            return "eq"
+
+        def __ne__(self, other):
+            return "ne"
+
+    class MyAlwaysEqualOld(MyAlwaysEqual):
+        __array_priority__ = 10000
+
+    class MyAlwaysEqualNew(MyAlwaysEqual):
+        __array_ufunc__ = None
+
+    array = np.array([(0, 1), (2, 3)], dtype='i4,i4')
+    for my_always_equal_cls in MyAlwaysEqualOld, MyAlwaysEqualNew:
+        my_always_equal = my_always_equal_cls()
+        assert_equal(my_always_equal == array, 'eq')
+        assert_equal(array == my_always_equal, 'eq')
+        assert_equal(my_always_equal != array, 'ne')
+        assert_equal(array != my_always_equal, 'ne')
+
+
+@pytest.mark.parametrize("op", [operator.eq, operator.ne])
+@pytest.mark.parametrize(["dt1", "dt2"], [
+        ([("f", "i")], [("f", "i")]),  # structured comparison (successful)
+        ("M8", "d"),  # impossible comparison: result is all True or False
+        ("d", "d"),  # valid comparison
+        ])
+def test_equal_subclass_no_override(op, dt1, dt2):
+    # Test how the three different possible code-paths deal with subclasses
+
+    class MyArr(np.ndarray):
+        called_wrap = 0
+
+        def __array_wrap__(self, new, context=None, return_scalar=False):
+            type(self).called_wrap += 1
+            return super().__array_wrap__(new, context, return_scalar)
+
+    numpy_arr = np.zeros(5, dtype=dt1)
+    my_arr = np.zeros(5, dtype=dt2).view(MyArr)
+
+    assert type(op(numpy_arr, my_arr)) is MyArr
+    assert type(op(my_arr, numpy_arr)) is MyArr
+    # We expect 2 calls (more if there were more fields):
+    assert MyArr.called_wrap == 2
+
+
+@pytest.mark.parametrize(["dt1", "dt2"], [
+        ("M8[ns]", "d"),
+        ("M8[s]", "l"),
+        ("m8[ns]", "d"),
+        # Missing: ("m8[ns]", "l") as timedelta currently promotes ints
+        ("M8[s]", "m8[s]"),
+        ("S5", "U5"),
+        # Structured/void dtypes have explicit paths not tested here.
+])
+def test_no_loop_gives_all_true_or_false(dt1, dt2):
+    # Make sure they broadcast to test result shape, use random values, since
+    # the actual value should be ignored
+    arr1 = np.random.randint(5, size=100).astype(dt1)
+    arr2 = np.random.randint(5, size=99)[:, np.newaxis].astype(dt2)
+
+    res = arr1 == arr2
+    assert res.shape == (99, 100)
+    assert res.dtype == bool
+    assert not res.any()
+
+    res = arr1 != arr2
+    assert res.shape == (99, 100)
+    assert res.dtype == bool
+    assert res.all()
+
+    # incompatible shapes raise though
+    arr2 = np.random.randint(5, size=99).astype(dt2)
+    with pytest.raises(ValueError):
+        arr1 == arr2
+
+    with pytest.raises(ValueError):
+        arr1 != arr2
+
+    # Basic test with another operation:
+    with pytest.raises(np._core._exceptions._UFuncNoLoopError):
+        arr1 > arr2
+
+
+@pytest.mark.parametrize("op", [
+        operator.eq, operator.ne, operator.le, operator.lt, operator.ge,
+        operator.gt])
+def test_comparisons_forwards_error(op):
+    class NotArray:
+        def __array__(self, dtype=None, copy=None):
+            raise TypeError("run you fools")
+
+    with pytest.raises(TypeError, match="run you fools"):
+        op(np.arange(2), NotArray())
+
+    with pytest.raises(TypeError, match="run you fools"):
+        op(NotArray(), np.arange(2))
+
+
+def test_richcompare_scalar_boolean_singleton_return():
+    # These are currently guaranteed to be the boolean numpy singletons
+    assert (np.array(0) == "a") is np.bool_(False)
+    assert (np.array(0) != "a") is np.bool_(True)
+    assert (np.int16(0) == "a") is np.bool_(False)
+    assert (np.int16(0) != "a") is np.bool_(True)
+
+
+@pytest.mark.parametrize("op", [
+        operator.eq, operator.ne, operator.le, operator.lt, operator.ge,
+        operator.gt])
+def test_ragged_comparison_fails(op):
+    # This needs to convert the internal array to True/False, which fails:
+    a = np.array([1, np.array([1, 2, 3])], dtype=object)
+    b = np.array([1, np.array([1, 2, 3])], dtype=object)
+
+    with pytest.raises(ValueError, match="The truth value.*ambiguous"):
+        op(a, b)
+
+
+@pytest.mark.parametrize(
+    ["fun", "npfun"],
+    [
+        (_multiarray_tests.npy_cabs, np.absolute),
+        (_multiarray_tests.npy_carg, np.angle)
+    ]
+)
+@pytest.mark.parametrize("x", [1, np.inf, -np.inf, np.nan])
+@pytest.mark.parametrize("y", [1, np.inf, -np.inf, np.nan])
+@pytest.mark.parametrize("test_dtype", np.complexfloating.__subclasses__())
+def test_npymath_complex(fun, npfun, x, y, test_dtype):
+    # Smoketest npymath functions
+    z = test_dtype(complex(x, y))
+    with np.errstate(invalid='ignore'):
+        # Fallback implementations may emit a warning for +-inf (see gh-24876):
+        #     RuntimeWarning: invalid value encountered in absolute
+        got = fun(z)
+        expected = npfun(z)
+        assert_allclose(got, expected)
+
+
+def test_npymath_real():
+    # Smoketest npymath functions
+    from numpy._core._multiarray_tests import (
+        npy_cosh,
+        npy_log10,
+        npy_sinh,
+        npy_tan,
+        npy_tanh,
+    )
+
+    funcs = {npy_log10: np.log10,
+             npy_cosh: np.cosh,
+             npy_sinh: np.sinh,
+             npy_tan: np.tan,
+             npy_tanh: np.tanh}
+    vals = (1, np.inf, -np.inf, np.nan)
+    types = (np.float32, np.float64, np.longdouble)
+
+    with np.errstate(all='ignore'):
+        for fun, npfun in funcs.items():
+            for x, t in itertools.product(vals, types):
+                z = t(x)
+                got = fun(z)
+                expected = npfun(z)
+                assert_allclose(got, expected)
+
+def test_uintalignment_and_alignment():
+    # alignment code needs to satisfy these requirements:
+    #  1. numpy structs match C struct layout
+    #  2. ufuncs/casting is safe wrt to aligned access
+    #  3. copy code is safe wrt to "uint alidned" access
+    #
+    # Complex types are the main problem, whose alignment may not be the same
+    # as their "uint alignment".
+    #
+    # This test might only fail on certain platforms, where uint64 alignment is
+    # not equal to complex64 alignment. The second 2 tests will only fail
+    # for DEBUG=1.
+
+    d1 = np.dtype('u1,c8', align=True)
+    d2 = np.dtype('u4,c8', align=True)
+    d3 = np.dtype({'names': ['a', 'b'], 'formats': ['u1', d1]}, align=True)
+
+    assert_equal(np.zeros(1, dtype=d1)['f1'].flags['ALIGNED'], True)
+    assert_equal(np.zeros(1, dtype=d2)['f1'].flags['ALIGNED'], True)
+    assert_equal(np.zeros(1, dtype='u1,c8')['f1'].flags['ALIGNED'], False)
+
+    # check that C struct matches numpy struct size
+    s = _multiarray_tests.get_struct_alignments()
+    for d, (alignment, size) in zip([d1, d2, d3], s):
+        assert_equal(d.alignment, alignment)
+        assert_equal(d.itemsize, size)
+
+    # check that ufuncs don't complain in debug mode
+    # (this is probably OK if the aligned flag is true above)
+    src = np.zeros((2, 2), dtype=d1)['f1']  # 4-byte aligned, often
+    np.exp(src)  # assert fails?
+
+    # check that copy code doesn't complain in debug mode
+    dst = np.zeros((2, 2), dtype='c8')
+    dst[:, 1] = src[:, 1]  # assert in lowlevel_strided_loops fails?
+
+class TestAlignment:
+    # adapted from scipy._lib.tests.test__util.test__aligned_zeros
+    # Checks that unusual memory alignments don't trip up numpy.
+
+    def check(self, shape, dtype, order, align):
+        err_msg = repr((shape, dtype, order, align))
+        x = _aligned_zeros(shape, dtype, order, align=align)
+        if align is None:
+            align = np.dtype(dtype).alignment
+        assert_equal(x.__array_interface__['data'][0] % align, 0)
+        if hasattr(shape, '__len__'):
+            assert_equal(x.shape, shape, err_msg)
+        else:
+            assert_equal(x.shape, (shape,), err_msg)
+        assert_equal(x.dtype, dtype)
+        if order == "C":
+            assert_(x.flags.c_contiguous, err_msg)
+        elif order == "F":
+            if x.size > 0:
+                assert_(x.flags.f_contiguous, err_msg)
+        elif order is None:
+            assert_(x.flags.c_contiguous, err_msg)
+        else:
+            raise ValueError
+
+    def test_various_alignments(self):
+        for align in [1, 2, 3, 4, 8, 12, 16, 32, 64, None]:
+            for n in [0, 1, 3, 11]:
+                for order in ["C", "F", None]:
+                    for dtype in list(np.typecodes["All"]) + ['i4,i4,i4']:
+                        if dtype == 'O':
+                            # object dtype can't be misaligned
+                            continue
+                        for shape in [n, (1, 2, 3, n)]:
+                            self.check(shape, np.dtype(dtype), order, align)
+
+    def test_strided_loop_alignments(self):
+        # particularly test that complex64 and float128 use right alignment
+        # code-paths, since these are particularly problematic. It is useful to
+        # turn on USE_DEBUG for this test, so lowlevel-loop asserts are run.
+        for align in [1, 2, 4, 8, 12, 16, None]:
+            xf64 = _aligned_zeros(3, np.float64)
+
+            xc64 = _aligned_zeros(3, np.complex64, align=align)
+            xf128 = _aligned_zeros(3, np.longdouble, align=align)
+
+            # test casting, both to and from misaligned
+            with warnings.catch_warnings():
+                warnings.filterwarnings('ignore', "Casting complex values", ComplexWarning)
+                xc64.astype('f8')
+            xf64.astype(np.complex64)
+            test = xc64 + xf64
+
+            xf128.astype('f8')
+            xf64.astype(np.longdouble)
+            test = xf128 + xf64
+
+            test = xf128 + xc64
+
+            # test copy, both to and from misaligned
+            # contig copy
+            xf64[:] = xf64.copy()
+            xc64[:] = xc64.copy()
+            xf128[:] = xf128.copy()
+            # strided copy
+            xf64[::2] = xf64[::2].copy()
+            xc64[::2] = xc64[::2].copy()
+            xf128[::2] = xf128[::2].copy()
+
+def test_getfield():
+    a = np.arange(32, dtype='uint16')
+    if sys.byteorder == 'little':
+        i = 0
+        j = 1
+    else:
+        i = 1
+        j = 0
+    b = a.getfield('int8', i)
+    assert_equal(b, a)
+    b = a.getfield('int8', j)
+    assert_equal(b, 0)
+    pytest.raises(ValueError, a.getfield, 'uint8', -1)
+    pytest.raises(ValueError, a.getfield, 'uint8', 16)
+    pytest.raises(ValueError, a.getfield, 'uint64', 0)
+
+class TestViewDtype:
+    """
+    Verify that making a view of a non-contiguous array works as expected.
+    """
+    def test_smaller_dtype_multiple(self):
+        # x is non-contiguous
+        x = np.arange(10, dtype='<i4')[::2]
+        with pytest.raises(ValueError,
+                           match='the last axis must be contiguous'):
+            x.view('<i2')
+        expected = [[0, 0], [2, 0], [4, 0], [6, 0], [8, 0]]
+        assert_array_equal(x[:, np.newaxis].view('<i2'), expected)
+
+    def test_smaller_dtype_not_multiple(self):
+        # x is non-contiguous
+        x = np.arange(5, dtype='<i4')[::2]
+
+        with pytest.raises(ValueError,
+                           match='the last axis must be contiguous'):
+            x.view('S3')
+        with pytest.raises(ValueError,
+                           match='When changing to a smaller dtype'):
+            x[:, np.newaxis].view('S3')
+
+        # Make sure the problem is because of the dtype size
+        expected = [[b''], [b'\x02'], [b'\x04']]
+        assert_array_equal(x[:, np.newaxis].view('S4'), expected)
+
+    def test_larger_dtype_multiple(self):
+        # x is non-contiguous in the first dimension, contiguous in the last
+        x = np.arange(20, dtype='<i2').reshape(10, 2)[::2, :]
+        expected = np.array([[65536], [327684], [589832],
+                             [851980], [1114128]], dtype='<i4')
+        assert_array_equal(x.view('<i4'), expected)
+
+    def test_larger_dtype_not_multiple(self):
+        # x is non-contiguous in the first dimension, contiguous in the last
+        x = np.arange(20, dtype='<i2').reshape(10, 2)[::2, :]
+        with pytest.raises(ValueError,
+                           match='When changing to a larger dtype'):
+            x.view('S3')
+        # Make sure the problem is because of the dtype size
+        expected = [[b'\x00\x00\x01'], [b'\x04\x00\x05'], [b'\x08\x00\t'],
+                    [b'\x0c\x00\r'], [b'\x10\x00\x11']]
+        assert_array_equal(x.view('S4'), expected)
+
+    def test_f_contiguous(self):
+        # x is F-contiguous
+        x = np.arange(4 * 3, dtype='<i4').reshape(4, 3).T
+        with pytest.raises(ValueError,
+                           match='the last axis must be contiguous'):
+            x.view('<i2')
+
+    def test_non_c_contiguous(self):
+        # x is contiguous in axis=-1, but not C-contiguous in other axes
+        x = np.arange(2 * 3 * 4, dtype='i1').\
+                    reshape(2, 3, 4).transpose(1, 0, 2)
+        expected = [[[256, 770], [3340, 3854]],
+                    [[1284, 1798], [4368, 4882]],
+                    [[2312, 2826], [5396, 5910]]]
+        assert_array_equal(x.view('<i2'), expected)
+
+
+@pytest.mark.xfail(check_support_sve(), reason="gh-22982")
+# Test various array sizes that hit different code paths in quicksort-avx512
+@pytest.mark.parametrize("N", np.arange(1, 512))
+@pytest.mark.parametrize("dtype", ['e', 'f', 'd'])
+def test_sort_float(N, dtype):
+    # Regular data with nan sprinkled
+    np.random.seed(42)
+    arr = -0.5 + np.random.sample(N).astype(dtype)
+    arr[np.random.choice(arr.shape[0], 3)] = np.nan
+    assert_equal(np.sort(arr, kind='quick'), np.sort(arr, kind='heap'))
+
+    # (2) with +INF
+    infarr = np.inf * np.ones(N, dtype=dtype)
+    infarr[np.random.choice(infarr.shape[0], 5)] = -1.0
+    assert_equal(np.sort(infarr, kind='quick'), np.sort(infarr, kind='heap'))
+
+    # (3) with -INF
+    neginfarr = -np.inf * np.ones(N, dtype=dtype)
+    neginfarr[np.random.choice(neginfarr.shape[0], 5)] = 1.0
+    assert_equal(np.sort(neginfarr, kind='quick'),
+                 np.sort(neginfarr, kind='heap'))
+
+    # (4) with +/-INF
+    infarr = np.inf * np.ones(N, dtype=dtype)
+    infarr[np.random.choice(infarr.shape[0], (int)(N / 2))] = -np.inf
+    assert_equal(np.sort(infarr, kind='quick'), np.sort(infarr, kind='heap'))
+
+def test_sort_float16():
+    arr = np.arange(65536, dtype=np.int16)
+    temp = np.frombuffer(arr.tobytes(), dtype=np.float16)
+    data = np.copy(temp)
+    np.random.shuffle(data)
+    data_backup = data
+    assert_equal(np.sort(data, kind='quick'),
+            np.sort(data_backup, kind='heap'))
+
+
+@pytest.mark.parametrize("N", np.arange(1, 512))
+@pytest.mark.parametrize("dtype", ['h', 'H', 'i', 'I', 'l', 'L'])
+def test_sort_int(N, dtype):
+    # Random data with MAX and MIN sprinkled
+    minv = np.iinfo(dtype).min
+    maxv = np.iinfo(dtype).max
+    arr = np.random.randint(low=minv, high=maxv - 1, size=N, dtype=dtype)
+    arr[np.random.choice(arr.shape[0], 10)] = minv
+    arr[np.random.choice(arr.shape[0], 10)] = maxv
+    assert_equal(np.sort(arr, kind='quick'), np.sort(arr, kind='heap'))
+
+
+def test_sort_uint():
+    # Random data with NPY_MAX_UINT32 sprinkled
+    rng = np.random.default_rng(42)
+    N = 2047
+    maxv = np.iinfo(np.uint32).max
+    arr = rng.integers(low=0, high=maxv, size=N).astype('uint32')
+    arr[np.random.choice(arr.shape[0], 10)] = maxv
+    assert_equal(np.sort(arr, kind='quick'), np.sort(arr, kind='heap'))
+
+def test_private_get_ndarray_c_version():
+    assert isinstance(_get_ndarray_c_version(), int)
+
+
+@pytest.mark.parametrize("N", np.arange(1, 512))
+@pytest.mark.parametrize("dtype", [np.float32, np.float64])
+def test_argsort_float(N, dtype):
+    rnd = np.random.RandomState(116112)
+    # (1) Regular data with a few nan: doesn't use vectorized sort
+    arr = -0.5 + rnd.random(N).astype(dtype)
+    arr[rnd.choice(arr.shape[0], 3)] = np.nan
+    assert_arg_sorted(arr, np.argsort(arr, kind='quick'))
+
+    # (2) Random data with inf at the end of array
+    # See: https://github.com/intel/x86-simd-sort/pull/39
+    arr = -0.5 + rnd.rand(N).astype(dtype)
+    arr[N - 1] = np.inf
+    assert_arg_sorted(arr, np.argsort(arr, kind='quick'))
+
+
+@pytest.mark.parametrize("N", np.arange(2, 512))
+@pytest.mark.parametrize("dtype", [np.int32, np.uint32, np.int64, np.uint64])
+def test_argsort_int(N, dtype):
+    rnd = np.random.RandomState(1100710816)
+    # (1) random data with min and max values
+    minv = np.iinfo(dtype).min
+    maxv = np.iinfo(dtype).max
+    arr = rnd.randint(low=minv, high=maxv, size=N, dtype=dtype)
+    i, j = rnd.choice(N, 2, replace=False)
+    arr[i] = minv
+    arr[j] = maxv
+    assert_arg_sorted(arr, np.argsort(arr, kind='quick'))
+
+    # (2) random data with max value at the end of array
+    # See: https://github.com/intel/x86-simd-sort/pull/39
+    arr = rnd.randint(low=minv, high=maxv, size=N, dtype=dtype)
+    arr[N - 1] = maxv
+    assert_arg_sorted(arr, np.argsort(arr, kind='quick'))
+
+# Test large arrays that leverage openMP implementations from x86-simd-sort:
+@pytest.mark.parametrize("dtype", [np.float16, np.float32, np.float64])
+def test_sort_largearrays(dtype):
+    N = 1000000
+    rnd = np.random.RandomState(1100710816)
+    arr = -0.5 + rnd.random(N).astype(dtype)
+    assert_equal(np.sort(arr, kind='quick'), np.sort(arr, kind='heap'))
+
+# Test large arrays that leverage openMP implementations from x86-simd-sort:
+@pytest.mark.parametrize("dtype", [np.float32, np.float64])
+def test_argsort_largearrays(dtype):
+    N = 1000000
+    rnd = np.random.RandomState(1100710816)
+    arr = -0.5 + rnd.random(N).astype(dtype)
+    assert_arg_sorted(arr, np.argsort(arr, kind='quick'))
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+@pytest.mark.thread_unsafe(reason="test result depends on the reference count of a global object")
+def test_gh_22683():
+    b = 777.68760986
+    a = np.array([b] * 10000, dtype=object)
+    refc_start = sys.getrefcount(b)
+    np.choose(np.zeros(10000, dtype=int), [a], out=a)
+    np.choose(np.zeros(10000, dtype=int), [a], out=a)
+    refc_end = sys.getrefcount(b)
+    assert refc_end - refc_start < 10
+
+
+def test_gh_24459():
+    a = np.zeros((50, 3), dtype=np.float64)
+    with pytest.raises(TypeError):
+        np.choose(a, [3, -1])
+
+
+def test_gh_28206():
+    a = np.arange(3)
+    b = np.ones((3, 3), dtype=np.int64)
+    out = np.array([np.nan, np.nan, np.nan])
+
+    with warnings.catch_warnings():
+        warnings.simplefilter("error", RuntimeWarning)
+        np.choose(a, b, out=out)
+
+
+@pytest.mark.parametrize("N", np.arange(2, 512))
+@pytest.mark.parametrize("dtype", [np.int16, np.uint16,
+                        np.int32, np.uint32, np.int64, np.uint64])
+def test_partition_int(N, dtype):
+    rnd = np.random.RandomState(1100710816)
+    # (1) random data with min and max values
+    minv = np.iinfo(dtype).min
+    maxv = np.iinfo(dtype).max
+    arr = rnd.randint(low=minv, high=maxv, size=N, dtype=dtype)
+    i, j = rnd.choice(N, 2, replace=False)
+    arr[i] = minv
+    arr[j] = maxv
+    k = rnd.choice(N, 1)[0]
+    assert_arr_partitioned(np.sort(arr)[k], k,
+            np.partition(arr, k, kind='introselect'))
+    assert_arr_partitioned(np.sort(arr)[k], k,
+            arr[np.argpartition(arr, k, kind='introselect')])
+
+    # (2) random data with max value at the end of array
+    arr = rnd.randint(low=minv, high=maxv, size=N, dtype=dtype)
+    arr[N - 1] = maxv
+    assert_arr_partitioned(np.sort(arr)[k], k,
+            np.partition(arr, k, kind='introselect'))
+    assert_arr_partitioned(np.sort(arr)[k], k,
+            arr[np.argpartition(arr, k, kind='introselect')])
+
+
+@pytest.mark.parametrize("N", np.arange(2, 512))
+@pytest.mark.parametrize("dtype", [np.float16, np.float32, np.float64])
+def test_partition_fp(N, dtype):
+    rnd = np.random.RandomState(1100710816)
+    arr = -0.5 + rnd.random(N).astype(dtype)
+    k = rnd.choice(N, 1)[0]
+    assert_arr_partitioned(np.sort(arr)[k], k,
+            np.partition(arr, k, kind='introselect'))
+    assert_arr_partitioned(np.sort(arr)[k], k,
+            arr[np.argpartition(arr, k, kind='introselect')])
+
+    # Check that `np.inf < np.nan`
+    # This follows np.sort
+    arr[0] = np.nan
+    arr[1] = np.inf
+    o1 = np.partition(arr, -2, kind='introselect')
+    o2 = arr[np.argpartition(arr, -2, kind='introselect')]
+    for out in [o1, o2]:
+        assert_(np.isnan(out[-1]))
+        assert_equal(out[-2], np.inf)
+
+def test_cannot_assign_data():
+    a = np.arange(10)
+    b = np.linspace(0, 1, 10)
+    with pytest.raises(AttributeError):
+        a.data = b.data
+
+def test_insufficient_width():
+    """
+    If a 'width' parameter is passed into ``binary_repr`` that is insufficient
+    to represent the number in base 2 (positive) or 2's complement (negative)
+    form, the function used to silently ignore the parameter and return a
+    representation using the minimal number of bits needed for the form in
+    question. Such behavior is now considered unsafe from a user perspective
+    and will raise an error.
+    """
+    with pytest.raises(ValueError):
+        np.binary_repr(10, width=2)
+    with pytest.raises(ValueError):
+        np.binary_repr(-5, width=2)
+
+def test_npy_char_raises():
+    from numpy._core._multiarray_tests import npy_char_deprecation
+    with pytest.raises(ValueError):
+        npy_char_deprecation()
+
+
+class TestDevice:
+    """
+    Test arr.device attribute and arr.to_device() method.
+    """
+    @pytest.mark.parametrize("func, arg", [
+        (np.arange, 5),
+        (np.empty_like, []),
+        (np.zeros, 5),
+        (np.empty, (5, 5)),
+        (np.asarray, []),
+        (np.asanyarray, []),
+    ])
+    def test_device(self, func, arg):
+        arr = func(arg)
+        assert arr.device == "cpu"
+        arr = func(arg, device=None)
+        assert arr.device == "cpu"
+        arr = func(arg, device="cpu")
+        assert arr.device == "cpu"
+
+        with assert_raises_regex(
+            ValueError,
+            r"Device not understood. Only \"cpu\" is allowed, "
+            r"but received: nonsense"
+        ):
+            func(arg, device="nonsense")
+
+        with assert_raises_regex(
+            AttributeError,
+            r"attribute 'device' of '(numpy.|)ndarray' objects is "
+            r"not writable"
+        ):
+            arr.device = "other"
+
+    def test_to_device(self):
+        arr = np.arange(5)
+
+        assert arr.to_device("cpu") is arr
+        with assert_raises_regex(
+            ValueError,
+            r"The stream argument in to_device\(\) is not supported"
+        ):
+            arr.to_device("cpu", stream=1)
+
+def test_array_interface_excess_dimensions_raises():
+    """Regression test for gh-27949: ensure too many dims raises ValueError instead of segfault."""
+
+    # Dummy object to hold a custom __array_interface__
+    class DummyArray:
+        def __init__(self, interface):
+            # Attach the array interface dict to mimic an array
+            self.__array_interface__ = interface
+
+    # Create a base array (scalar) and copy its interface
+    base = np.array(42)  # base can be any scalar or array
+    interface = dict(base.__array_interface__)
+
+    # Modify the shape to exceed NumPy's dimension limit (NPY_MAXDIMS, typically 64)
+    interface['shape'] = tuple([1] * 136)  # match the original bug report
+
+    dummy = DummyArray(interface)
+    # Now, using np.asanyarray on this dummy should trigger a ValueError (not segfault)
+    with pytest.raises(ValueError, match="dimensions must be within"):
+        np.asanyarray(dummy)
+
+@pytest.mark.parametrize("dtype", [np.float32, np.float64, np.uint32, np.complex128])
+def test_array_dunder_array_preserves_dtype_on_none(dtype):
+    """
+    Regression test for: https://github.com/numpy/numpy/issues/27407
+    Ensure that __array__(None) returns an array of the same dtype.
+    """
+    a = np.array([1], dtype=dtype)
+    b = a.__array__(None)
+    assert_array_equal(a, b, strict=True)
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc")
+class TestTextSignatures:
+    @pytest.mark.parametrize(
+        "methodname",
+        [
+            "__array__", "__array_finalize__", "__array_function__", "__array_ufunc__",
+            "__array_wrap__", "__complex__", "__copy__", "__deepcopy__",
+            "__reduce__", "__reduce_ex__", "__setstate__",
+            "all", "any", "argmax", "argmin", "argsort", "argpartition", "astype",
+            "byteswap", "choose", "clip", "compress", "conj", "conjugate", "copy",
+            "cumprod", "cumsum", "diagonal", "dot", "dump", "dumps", "fill", "flatten",
+            "getfield", "item", "max", "mean", "min", "nonzero", "prod", "put", "ravel",
+            "repeat", "reshape", "resize", "round", "searchsorted", "setfield",
+            "setflags", "sort", "partition", "squeeze", "std", "sum", "swapaxes",
+            "take", "tofile", "tolist", "tobytes", "trace", "transpose", "var", "view",
+            "__array_namespace__", "__dlpack__", "__dlpack_device__", "to_device",
+    ],
+    )
+    def test_array_method_signatures(self, methodname: str):
+        method = getattr(np.ndarray, methodname)
+        assert callable(method)
+
+        try:
+            sig = inspect.signature(method)
+        except ValueError as e:
+            pytest.fail(f"Could not get signature for np.ndarray.{methodname}: {e}")
+
+        assert "self" in sig.parameters
+        assert sig.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY
+
+    @pytest.mark.parametrize("func", [np.empty_like, np.concatenate])
+    def test_c_func_dispatcher_text_signature(self, func):
+        text_sig = func.__wrapped__.__text_signature__
+        assert text_sig.startswith("(") and text_sig.endswith(")")
+
+        sig = inspect.signature(func)
+        assert sig == inspect.signature(func.__wrapped__)
+        assert not hasattr(func, "__signature__")
+
+        with pytest.raises(ValueError):
+            inspect.signature(func, follow_wrapped=False)
+
+    @pytest.mark.parametrize(
+        "func",
+        [
+            np.inner, np.where, np.lexsort, np.can_cast, np.min_scalar_type,
+            np.result_type, np.dot, np.vdot, np.bincount, np.ravel_multi_index,
+            np.unravel_index, np.copyto, np.putmask, np.packbits, np.unpackbits,
+            np.shares_memory, np.may_share_memory, np.is_busday, np.busday_offset,
+            np.busday_count, np.datetime_as_string,
+        ],
+    )
+    def test_c_func_dispatcher_signature(self, func):
+        sig = inspect.signature(func)
+
+        assert hasattr(func, "__signature__")
+        assert sig == func.__signature__
+        assert sig.parameters
+
+    @pytest.mark.parametrize(("func", "parameter_names"), [
+        (np.arange, ("start_or_stop", "stop", "step", "dtype", "device", "like")),
+        (np.busdaycalendar, ("weekmask", "holidays")),
+        (np.char.compare_chararrays, ("a1", "a2", "cmp", "rstrip")),
+        (np.datetime_data, ("dtype",)),
+        (np.from_dlpack, ("x", "device", "copy")),
+        (np.frombuffer, ("buffer", "dtype", "count", "offset", "like")),
+        (np.fromfile, ("file", "dtype", "count", "sep", "offset", "like")),
+        (np.fromiter, ("iter", "dtype", "count", "like")),
+        (np.frompyfunc, ("func", "nin", "nout", "kwargs")),
+        (np.nested_iters, (
+            "op", "axes", "flags", "op_flags", "op_dtypes", "order", "casting",
+            "buffersize",
+        )),
+        (np.promote_types, ("type1", "type2")),
+    ])
+    def test_add_newdoc_function_signature(self, func, parameter_names):
+        assert not hasattr(func, "__signature__")
+        assert getattr(func, "__text_signature__", None)
+
+        sig = inspect.signature(func)
+        assert sig.parameters
+        assert tuple(sig.parameters) == parameter_names
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multiprocessing.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multiprocessing.py
new file mode 100644
index 0000000000000000000000000000000000000000..72449ad3ca10d5a89229cc7bd1eb3d695a94af06
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multiprocessing.py
@@ -0,0 +1,55 @@
+import sys
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_PYPY, IS_WASM
+
+pytestmark = pytest.mark.thread_unsafe(
+    reason="tests in this module are explicitly multi-processed"
+)
+
+def bool_array_writer(shm_name, n):
+    # writer routine for test_read_write_bool_array
+    import time
+    from multiprocessing import shared_memory
+    shm = shared_memory.SharedMemory(name=shm_name)
+    arr = np.ndarray(n, dtype=np.bool_, buffer=shm.buf)
+    for i in range(n):
+        arr[i] = True
+        time.sleep(0.00001)
+
+def bool_array_reader(shm_name, n):
+    # reader routine for test_read_write_bool_array
+    from multiprocessing import shared_memory
+    shm = shared_memory.SharedMemory(name=shm_name)
+    arr = np.ndarray(n, dtype=np.bool_, buffer=shm.buf)
+    for i in range(n):
+        while not arr[i]:
+            pass
+
+@pytest.mark.skipif(IS_WASM,
+                    reason="WASM does not support _posixshmem")
+@pytest.mark.skipif(IS_PYPY and sys.platform == "win32",
+                    reason="_winapi does not support UnmapViewOfFile")
+def test_read_write_bool_array():
+    # See: gh-30389
+    #
+    # Prior to Python 3.13, boolean scalar singletons (np.True / np.False) were
+    # regular reference-counted objects. Due to the double evaluation in
+    # PyArrayScalar_RETURN_BOOL_FROM_LONG, concurrent reads and writes of a
+    # boolean array could corrupt their refcounts, potentially causing a crash
+    # (e.g., `free(): invalid pointer`).
+    #
+    # This test creates a multi-process race between a writer and a reader to
+    # ensure that NumPy does not exhibit such failures.
+    from concurrent.futures import ProcessPoolExecutor
+    from multiprocessing import shared_memory
+    n = 10000
+    shm = shared_memory.SharedMemory(create=True, size=n)
+    with ProcessPoolExecutor(max_workers=2) as executor:
+        f_writer = executor.submit(bool_array_writer, shm.name, n)
+        f_reader = executor.submit(bool_array_reader, shm.name, n)
+    shm.unlink()
+    f_writer.result()
+    f_reader.result()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multithreading.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multithreading.py
new file mode 100644
index 0000000000000000000000000000000000000000..032fe3827a83fa0c1478660aff96b59810dcd437
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_multithreading.py
@@ -0,0 +1,406 @@
+import concurrent.futures
+import sys
+import threading
+
+import pytest
+
+import numpy as np
+from numpy._core import _rational_tests
+from numpy._core.tests.test_stringdtype import random_unicode_string_list
+from numpy.testing import IS_64BIT, IS_WASM
+from numpy.testing._private.utils import run_threaded
+
+if IS_WASM:
+    pytest.skip(allow_module_level=True, reason="no threading support in wasm")
+
+pytestmark = pytest.mark.thread_unsafe(
+    reason="tests in this module are already explicitly multi-threaded"
+)
+
+def test_parallel_randomstate():
+    # if the coercion cache is enabled and not thread-safe, creating
+    # RandomState instances simultaneously leads to a data race
+    def func(seed):
+        np.random.RandomState(seed)
+
+    run_threaded(func, 500, pass_count=True)
+
+    # seeding and setting state shouldn't race with generating RNG samples
+    rng = np.random.RandomState()
+
+    def func(seed):
+        base_rng = np.random.RandomState(seed)
+        state = base_rng.get_state()
+        rng.seed(seed)
+        rng.random()
+        rng.set_state(state)
+
+    run_threaded(func, 8, pass_count=True)
+
+def test_parallel_ufunc_execution():
+    # if the loop data cache or dispatch cache are not thread-safe
+    # computing ufuncs simultaneously in multiple threads leads
+    # to a data race that causes crashes or spurious exceptions
+    for dtype in [np.float32, np.float64, np.int32]:
+        for op in [np.random.random((25,)).astype(dtype), dtype(25)]:
+            for ufunc in [np.isnan, np.sin]:
+                run_threaded(lambda: ufunc(op), 500)
+
+    # see gh-26690
+    NUM_THREADS = 50
+
+    a = np.ones(1000)
+
+    def f(b):
+        b.wait()
+        return a.sum()
+
+    run_threaded(f, NUM_THREADS, pass_barrier=True)
+
+
+def test_temp_elision_thread_safety():
+    amid = np.ones(50000)
+    bmid = np.ones(50000)
+    alarge = np.ones(1000000)
+    blarge = np.ones(1000000)
+
+    def func(count):
+        if count % 4 == 0:
+            (amid * 2) + bmid
+        elif count % 4 == 1:
+            (amid + bmid) - 2
+        elif count % 4 == 2:
+            (alarge * 2) + blarge
+        else:
+            (alarge + blarge) - 2
+
+    run_threaded(func, 100, pass_count=True)
+
+
+def test_eigvalsh_thread_safety():
+    # if lapack isn't thread safe this will randomly segfault or error
+    # see gh-24512
+    rng = np.random.RandomState(873699172)
+    matrices = (
+        rng.random((5, 10, 10, 3, 3)),
+        rng.random((5, 10, 10, 3, 3)),
+    )
+
+    run_threaded(lambda i: np.linalg.eigvalsh(matrices[i]), 2,
+                 pass_count=True)
+
+
+def test_printoptions_thread_safety():
+    # until NumPy 2.1 the printoptions state was stored in globals
+    # this verifies that they are now stored in a context variable
+    b = threading.Barrier(2)
+
+    def legacy_113():
+        np.set_printoptions(legacy='1.13', precision=12)
+        b.wait()
+        po = np.get_printoptions()
+        assert po['legacy'] == '1.13'
+        assert po['precision'] == 12
+        orig_linewidth = po['linewidth']
+        with np.printoptions(linewidth=34, legacy='1.21'):
+            po = np.get_printoptions()
+            assert po['legacy'] == '1.21'
+            assert po['precision'] == 12
+            assert po['linewidth'] == 34
+        po = np.get_printoptions()
+        assert po['linewidth'] == orig_linewidth
+        assert po['legacy'] == '1.13'
+        assert po['precision'] == 12
+
+    def legacy_125():
+        np.set_printoptions(legacy='1.25', precision=7)
+        b.wait()
+        po = np.get_printoptions()
+        assert po['legacy'] == '1.25'
+        assert po['precision'] == 7
+        orig_linewidth = po['linewidth']
+        with np.printoptions(linewidth=6, legacy='1.13'):
+            po = np.get_printoptions()
+            assert po['legacy'] == '1.13'
+            assert po['precision'] == 7
+            assert po['linewidth'] == 6
+        po = np.get_printoptions()
+        assert po['linewidth'] == orig_linewidth
+        assert po['legacy'] == '1.25'
+        assert po['precision'] == 7
+
+    task1 = threading.Thread(target=legacy_113)
+    task2 = threading.Thread(target=legacy_125)
+
+    task1.start()
+    task2.start()
+    task1.join()
+    task2.join()
+
+
+def test_parallel_reduction():
+    # gh-28041
+    NUM_THREADS = 50
+
+    x = np.arange(1000)
+
+    def closure(b):
+        b.wait()
+        np.sum(x)
+
+    run_threaded(closure, NUM_THREADS, pass_barrier=True)
+
+
+def test_parallel_flat_iterator():
+    # gh-28042
+    x = np.arange(20).reshape(5, 4).T
+
+    def closure(b):
+        b.wait()
+        for _ in range(100):
+            list(x.flat)
+
+    run_threaded(closure, outer_iterations=100, pass_barrier=True)
+
+    # gh-28143
+    def prepare_args():
+        return [np.arange(10)]
+
+    def closure(x, b):
+        b.wait()
+        for _ in range(100):
+            y = np.arange(10)
+            y.flat[x] = x
+
+    run_threaded(closure, pass_barrier=True, prepare_args=prepare_args)
+
+
+def test_multithreaded_repeat():
+    x0 = np.arange(10)
+
+    def closure(b):
+        b.wait()
+        for _ in range(100):
+            x = np.repeat(x0, 2, axis=0)[::2]
+
+    run_threaded(closure, max_workers=10, pass_barrier=True)
+
+
+def test_structured_advanced_indexing():
+    # Test that copyswap(n) used by integer array indexing is threadsafe
+    # for structured datatypes, see gh-15387. This test can behave randomly.
+
+    # Create a deeply nested dtype to make a failure more likely:
+    dt = np.dtype([("", "f8")])
+    dt = np.dtype([("", dt)] * 2)
+    dt = np.dtype([("", dt)] * 2)
+    # The array should be large enough to likely run into threading issues
+    arr = np.random.uniform(size=(6000, 8)).view(dt)[:, 0]
+
+    rng = np.random.default_rng()
+
+    def func(arr):
+        indx = rng.integers(0, len(arr), size=6000, dtype=np.intp)
+        arr[indx]
+
+    tpe = concurrent.futures.ThreadPoolExecutor(max_workers=8)
+    futures = [tpe.submit(func, arr) for _ in range(10)]
+    for f in futures:
+        f.result()
+
+    assert arr.dtype is dt
+
+
+def test_structured_threadsafety2():
+    # Nonzero (and some other functions) should be threadsafe for
+    # structured datatypes, see gh-15387. This test can behave randomly.
+    from concurrent.futures import ThreadPoolExecutor
+
+    # Create a deeply nested dtype to make a failure more likely:
+    dt = np.dtype([("", "f8")])
+    dt = np.dtype([("", dt)])
+    dt = np.dtype([("", dt)] * 2)
+    # The array should be large enough to likely run into threading issues
+    arr = np.random.uniform(size=(5000, 4)).view(dt)[:, 0]
+
+    def func(arr):
+        arr.nonzero()
+
+    tpe = ThreadPoolExecutor(max_workers=8)
+    futures = [tpe.submit(func, arr) for _ in range(10)]
+    for f in futures:
+        f.result()
+
+    assert arr.dtype is dt
+
+
+def test_stringdtype_multithreaded_access_and_mutation():
+    # this test uses an RNG and may crash or cause deadlocks if there is a
+    # threading bug
+    rng = np.random.default_rng(0x4D3D3D3)
+
+    string_list = random_unicode_string_list()
+
+    def func(arr):
+        rnd = rng.random()
+        # either write to random locations in the array, compute a ufunc, or
+        # re-initialize the array
+        if rnd < 0.25:
+            num = np.random.randint(0, arr.size)
+            arr[num] = arr[num] + "hello"
+        elif rnd < 0.5:
+            if rnd < 0.375:
+                np.add(arr, arr)
+            else:
+                np.add(arr, arr, out=arr)
+        elif rnd < 0.75:
+            if rnd < 0.875:
+                np.multiply(arr, np.int64(2))
+            else:
+                np.multiply(arr, np.int64(2), out=arr)
+        else:
+            arr[:] = string_list
+
+    with concurrent.futures.ThreadPoolExecutor(max_workers=8) as tpe:
+        arr = np.array(string_list, dtype="T")
+        futures = [tpe.submit(func, arr) for _ in range(500)]
+
+        for f in futures:
+            f.result()
+
+
+@pytest.mark.skipif(
+    not IS_64BIT,
+    reason="Sometimes causes failures or crashes due to OOM on 32 bit runners"
+)
+def test_legacy_usertype_cast_init_thread_safety():
+    def closure(b):
+        b.wait()
+        np.full((10, 10), 1, _rational_tests.rational)
+
+    run_threaded(closure, 250, pass_barrier=True)
+
+@pytest.mark.parametrize("dtype", [bool, int, float])
+def test_nonzero(dtype):
+    # See: gh-28361
+    #
+    # np.nonzero uses np.count_nonzero to determine the size of the output.
+    # array. In a second pass the indices of the non-zero elements are
+    # determined, but they can have changed
+    #
+    # This test triggers a data race which is suppressed in the TSAN CI.
+    # The test is to ensure np.nonzero does not generate a segmentation fault
+    x = np.random.randint(4, size=100).astype(dtype)
+    expected_warning = ('number of non-zero array elements changed'
+                        ' during function execution')
+
+    def func(index):
+        for _ in range(10):
+            if index == 0:
+                x[::2] = np.random.randint(2)
+            else:
+                try:
+                    _ = np.nonzero(x)
+                except RuntimeError as ex:
+                    assert expected_warning in str(ex)
+
+    run_threaded(func, max_workers=10, pass_count=True, outer_iterations=5)
+
+
+# These are all implemented using PySequence_Fast, which needs locking to be safe
+def np_broadcast(arrs):
+    for i in range(50):
+        np.broadcast(arrs)
+
+def create_array(arrs):
+    for i in range(50):
+        np.array(arrs)
+
+def create_nditer(arrs):
+    for i in range(50):
+        np.nditer(arrs)
+
+
+@pytest.mark.parametrize(
+    "kernel, outcome",
+    (
+        (np_broadcast, "error"),
+        (create_array, "error"),
+        (create_nditer, "success"),
+    ),
+)
+def test_arg_locking(kernel, outcome):
+    # should complete without triggering races but may error
+
+    done = 0
+    arrs = [np.array([1, 2, 3]) for _ in range(1000)]
+
+    def read_arrs(b):
+        nonlocal done
+        b.wait()
+        try:
+            kernel(arrs)
+        finally:
+            done += 1
+
+    def contract_and_expand_list(b):
+        b.wait()
+        while done < 4:
+            if len(arrs) > 10:
+                arrs.pop(0)
+            elif len(arrs) <= 10:
+                arrs.extend([np.array([1, 2, 3]) for _ in range(1000)])
+
+    def replace_list_items(b):
+        b.wait()
+        rng = np.random.RandomState()
+        rng.seed(0x4d3d3d3)
+        while done < 4:
+            data = rng.randint(0, 1000, size=4)
+            arrs[data[0]] = data[1:]
+
+    for mutation_func in (replace_list_items, contract_and_expand_list):
+        b = threading.Barrier(5)
+        try:
+            with concurrent.futures.ThreadPoolExecutor(max_workers=5) as tpe:
+                tasks = [tpe.submit(read_arrs, b) for _ in range(4)]
+                tasks.append(tpe.submit(mutation_func, b))
+                for t in tasks:
+                    t.result()
+        except RuntimeError as e:
+            if outcome == "success":
+                raise
+            assert "Inconsistent object during array creation?" in str(e)
+            msg = "replace_list_items should not raise errors"
+            assert mutation_func is contract_and_expand_list, msg
+        finally:
+            if len(tasks) < 5:
+                b.abort()
+
+@pytest.mark.skipif(sys.version_info < (3, 12), reason="Python >= 3.12 required")
+def test_array__buffer__thread_safety():
+    import inspect
+    arr = np.arange(1000)
+    flags = [inspect.BufferFlags.STRIDED, inspect.BufferFlags.READ]
+
+    def func(b):
+        b.wait()
+        for i in range(100):
+            arr.__buffer__(flags[i % 2])
+
+    run_threaded(func, max_workers=8, pass_barrier=True)
+
+@pytest.mark.skipif(sys.version_info < (3, 12), reason="Python >= 3.12 required")
+def test_void_dtype__buffer__thread_safety():
+    import inspect
+    dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))])
+    x = np.array(('ndarray_scalar', (1.2, 3.0)), dtype=dt)[()]
+    assert isinstance(x, np.void)
+    flags = [inspect.BufferFlags.STRIDES, inspect.BufferFlags.READ]
+
+    def func(b):
+        b.wait()
+        for i in range(100):
+            x.__buffer__(flags[i % 2])
+
+    run_threaded(func, max_workers=8, pass_barrier=True)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_nditer.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_nditer.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a6eea6c216d9e29e0df46a02aa4783a03070bd7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_nditer.py
@@ -0,0 +1,3533 @@
+import inspect
+import subprocess
+import sys
+import textwrap
+import warnings
+
+import pytest
+
+import numpy as np
+import numpy._core._multiarray_tests as _multiarray_tests
+import numpy._core.umath as ncu
+from numpy import all, arange, array, nditer
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_64BIT,
+    IS_PYPY,
+    IS_WASM,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+from numpy.testing._private.utils import requires_memory
+
+
+def iter_multi_index(i):
+    ret = []
+    while not i.finished:
+        ret.append(i.multi_index)
+        i.iternext()
+    return ret
+
+def iter_indices(i):
+    ret = []
+    while not i.finished:
+        ret.append(i.index)
+        i.iternext()
+    return ret
+
+def iter_iterindices(i):
+    ret = []
+    while not i.finished:
+        ret.append(i.iterindex)
+        i.iternext()
+    return ret
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_iter_refcount():
+    # Make sure the iterator doesn't leak
+
+    # Basic
+    a = arange(6)
+    dt = np.dtype('f4').newbyteorder()
+    rc_a = sys.getrefcount(a)
+    rc_dt = sys.getrefcount(dt)
+    with nditer(a, [],
+                [['readwrite', 'updateifcopy']],
+                casting='unsafe',
+                op_dtypes=[dt]) as it:
+        assert_(not it.iterationneedsapi)
+        assert_(sys.getrefcount(a) > rc_a)
+        assert_(sys.getrefcount(dt) > rc_dt)
+    # del 'it'
+    it = None
+    assert_equal(sys.getrefcount(a), rc_a)
+    assert_equal(sys.getrefcount(dt), rc_dt)
+
+    # With a copy
+    a = arange(6, dtype='f4')
+    dt = np.dtype('f4')
+    rc_a = sys.getrefcount(a)
+    rc_dt = sys.getrefcount(dt)
+    it = nditer(a, [],
+                [['readwrite']],
+                op_dtypes=[dt])
+    rc2_a = sys.getrefcount(a)
+    rc2_dt = sys.getrefcount(dt)
+    it2 = it.copy()
+    assert_(sys.getrefcount(a) > rc2_a)
+    if sys.version_info < (3, 13):
+        # np.dtype('f4') is immortal after Python 3.13
+        assert_(sys.getrefcount(dt) > rc2_dt)
+    it = None
+    assert_equal(sys.getrefcount(a), rc2_a)
+    assert_equal(sys.getrefcount(dt), rc2_dt)
+    it2 = None
+    assert_equal(sys.getrefcount(a), rc_a)
+    assert_equal(sys.getrefcount(dt), rc_dt)
+
+def test_iter_best_order():
+    # The iterator should always find the iteration order
+    # with increasing memory addresses
+
+    # Test the ordering for 1-D to 5-D shapes
+    for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]:
+        a = arange(np.prod(shape))
+        # Test each combination of positive and negative strides
+        for dirs in range(2**len(shape)):
+            dirs_index = [slice(None)] * len(shape)
+            for bit in range(len(shape)):
+                if ((2**bit) & dirs):
+                    dirs_index[bit] = slice(None, None, -1)
+            dirs_index = tuple(dirs_index)
+
+            aview = a.reshape(shape)[dirs_index]
+            # C-order
+            i = nditer(aview, [], [['readonly']])
+            assert_equal(list(i), a)
+            # Fortran-order
+            i = nditer(aview.T, [], [['readonly']])
+            assert_equal(list(i), a)
+            # Other order
+            if len(shape) > 2:
+                i = nditer(aview.swapaxes(0, 1), [], [['readonly']])
+                assert_equal(list(i), a)
+
+def test_iter_c_order():
+    # Test forcing C order
+
+    # Test the ordering for 1-D to 5-D shapes
+    for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]:
+        a = arange(np.prod(shape))
+        # Test each combination of positive and negative strides
+        for dirs in range(2**len(shape)):
+            dirs_index = [slice(None)] * len(shape)
+            for bit in range(len(shape)):
+                if ((2**bit) & dirs):
+                    dirs_index[bit] = slice(None, None, -1)
+            dirs_index = tuple(dirs_index)
+
+            aview = a.reshape(shape)[dirs_index]
+            # C-order
+            i = nditer(aview, order='C')
+            assert_equal(list(i), aview.ravel(order='C'))
+            # Fortran-order
+            i = nditer(aview.T, order='C')
+            assert_equal(list(i), aview.T.ravel(order='C'))
+            # Other order
+            if len(shape) > 2:
+                i = nditer(aview.swapaxes(0, 1), order='C')
+                assert_equal(list(i),
+                                    aview.swapaxes(0, 1).ravel(order='C'))
+
+def test_iter_f_order():
+    # Test forcing F order
+
+    # Test the ordering for 1-D to 5-D shapes
+    for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]:
+        a = arange(np.prod(shape))
+        # Test each combination of positive and negative strides
+        for dirs in range(2**len(shape)):
+            dirs_index = [slice(None)] * len(shape)
+            for bit in range(len(shape)):
+                if ((2**bit) & dirs):
+                    dirs_index[bit] = slice(None, None, -1)
+            dirs_index = tuple(dirs_index)
+
+            aview = a.reshape(shape)[dirs_index]
+            # C-order
+            i = nditer(aview, order='F')
+            assert_equal(list(i), aview.ravel(order='F'))
+            # Fortran-order
+            i = nditer(aview.T, order='F')
+            assert_equal(list(i), aview.T.ravel(order='F'))
+            # Other order
+            if len(shape) > 2:
+                i = nditer(aview.swapaxes(0, 1), order='F')
+                assert_equal(list(i),
+                                    aview.swapaxes(0, 1).ravel(order='F'))
+
+def test_iter_c_or_f_order():
+    # Test forcing any contiguous (C or F) order
+
+    # Test the ordering for 1-D to 5-D shapes
+    for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]:
+        a = arange(np.prod(shape))
+        # Test each combination of positive and negative strides
+        for dirs in range(2**len(shape)):
+            dirs_index = [slice(None)] * len(shape)
+            for bit in range(len(shape)):
+                if ((2**bit) & dirs):
+                    dirs_index[bit] = slice(None, None, -1)
+            dirs_index = tuple(dirs_index)
+
+            aview = a.reshape(shape)[dirs_index]
+            # C-order
+            i = nditer(aview, order='A')
+            assert_equal(list(i), aview.ravel(order='A'))
+            # Fortran-order
+            i = nditer(aview.T, order='A')
+            assert_equal(list(i), aview.T.ravel(order='A'))
+            # Other order
+            if len(shape) > 2:
+                i = nditer(aview.swapaxes(0, 1), order='A')
+                assert_equal(list(i),
+                                    aview.swapaxes(0, 1).ravel(order='A'))
+
+def test_nditer_multi_index_set():
+    # Test the multi_index set
+    a = np.arange(6).reshape(2, 3)
+    it = np.nditer(a, flags=['multi_index'])
+
+    # Removes the iteration on two first elements of a[0]
+    it.multi_index = (0, 2,)
+
+    assert_equal(list(it), [2, 3, 4, 5])
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_nditer_multi_index_set_refcount():
+    # Test if the reference count on index variable is decreased
+
+    index = 0
+    i = np.nditer(np.array([111, 222, 333, 444]), flags=['multi_index'])
+
+    start_count = sys.getrefcount(index)
+    i.multi_index = (index,)
+    end_count = sys.getrefcount(index)
+
+    assert_equal(start_count, end_count)
+
+def test_iter_best_order_multi_index_1d():
+    # The multi-indices should be correct with any reordering
+
+    a = arange(4)
+    # 1D order
+    i = nditer(a, ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(0,), (1,), (2,), (3,)])
+    # 1D reversed order
+    i = nditer(a[::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(3,), (2,), (1,), (0,)])
+
+def test_iter_best_order_multi_index_2d():
+    # The multi-indices should be correct with any reordering
+
+    a = arange(6)
+    # 2D C-order
+    i = nditer(a.reshape(2, 3), ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(0, 0), (0, 1), (0, 2), (1, 0), (1, 1), (1, 2)])
+    # 2D Fortran-order
+    i = nditer(a.reshape(2, 3).copy(order='F'), ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(0, 0), (1, 0), (0, 1), (1, 1), (0, 2), (1, 2)])
+    # 2D reversed C-order
+    i = nditer(a.reshape(2, 3)[::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(1, 0), (1, 1), (1, 2), (0, 0), (0, 1), (0, 2)])
+    i = nditer(a.reshape(2, 3)[:, ::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(0, 2), (0, 1), (0, 0), (1, 2), (1, 1), (1, 0)])
+    i = nditer(a.reshape(2, 3)[::-1, ::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(1, 2), (1, 1), (1, 0), (0, 2), (0, 1), (0, 0)])
+    # 2D reversed Fortran-order
+    i = nditer(a.reshape(2, 3).copy(order='F')[::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(1, 0), (0, 0), (1, 1), (0, 1), (1, 2), (0, 2)])
+    i = nditer(a.reshape(2, 3).copy(order='F')[:, ::-1],
+                                                   ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(0, 2), (1, 2), (0, 1), (1, 1), (0, 0), (1, 0)])
+    i = nditer(a.reshape(2, 3).copy(order='F')[::-1, ::-1],
+                                                   ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i), [(1, 2), (0, 2), (1, 1), (0, 1), (1, 0), (0, 0)])
+
+def test_iter_best_order_multi_index_3d():
+    # The multi-indices should be correct with any reordering
+
+    a = arange(12)
+    # 3D C-order
+    i = nditer(a.reshape(2, 3, 2), ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(0, 0, 0), (0, 0, 1), (0, 1, 0), (0, 1, 1), (0, 2, 0), (0, 2, 1),
+                             (1, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1), (1, 2, 0), (1, 2, 1)])
+    # 3D Fortran-order
+    i = nditer(a.reshape(2, 3, 2).copy(order='F'), ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), (0, 2, 0), (1, 2, 0),
+                             (0, 0, 1), (1, 0, 1), (0, 1, 1), (1, 1, 1), (0, 2, 1), (1, 2, 1)])
+    # 3D reversed C-order
+    i = nditer(a.reshape(2, 3, 2)[::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(1, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1), (1, 2, 0), (1, 2, 1),
+                             (0, 0, 0), (0, 0, 1), (0, 1, 0), (0, 1, 1), (0, 2, 0), (0, 2, 1)])
+    i = nditer(a.reshape(2, 3, 2)[:, ::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(0, 2, 0), (0, 2, 1), (0, 1, 0), (0, 1, 1), (0, 0, 0), (0, 0, 1),
+                             (1, 2, 0), (1, 2, 1), (1, 1, 0), (1, 1, 1), (1, 0, 0), (1, 0, 1)])
+    i = nditer(a.reshape(2, 3, 2)[:, :, ::-1], ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(0, 0, 1), (0, 0, 0), (0, 1, 1), (0, 1, 0), (0, 2, 1), (0, 2, 0),
+                             (1, 0, 1), (1, 0, 0), (1, 1, 1), (1, 1, 0), (1, 2, 1), (1, 2, 0)])
+    # 3D reversed Fortran-order
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[::-1],
+                                                    ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(1, 0, 0), (0, 0, 0), (1, 1, 0), (0, 1, 0), (1, 2, 0), (0, 2, 0),
+                             (1, 0, 1), (0, 0, 1), (1, 1, 1), (0, 1, 1), (1, 2, 1), (0, 2, 1)])
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, ::-1],
+                                                    ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(0, 2, 0), (1, 2, 0), (0, 1, 0), (1, 1, 0), (0, 0, 0), (1, 0, 0),
+                             (0, 2, 1), (1, 2, 1), (0, 1, 1), (1, 1, 1), (0, 0, 1), (1, 0, 1)])
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, :, ::-1],
+                                                    ['multi_index'], [['readonly']])
+    assert_equal(iter_multi_index(i),
+                            [(0, 0, 1), (1, 0, 1), (0, 1, 1), (1, 1, 1), (0, 2, 1), (1, 2, 1),
+                             (0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), (0, 2, 0), (1, 2, 0)])
+
+def test_iter_best_order_c_index_1d():
+    # The C index should be correct with any reordering
+
+    a = arange(4)
+    # 1D order
+    i = nditer(a, ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [0, 1, 2, 3])
+    # 1D reversed order
+    i = nditer(a[::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [3, 2, 1, 0])
+
+def test_iter_best_order_c_index_2d():
+    # The C index should be correct with any reordering
+
+    a = arange(6)
+    # 2D C-order
+    i = nditer(a.reshape(2, 3), ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [0, 1, 2, 3, 4, 5])
+    # 2D Fortran-order
+    i = nditer(a.reshape(2, 3).copy(order='F'),
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [0, 3, 1, 4, 2, 5])
+    # 2D reversed C-order
+    i = nditer(a.reshape(2, 3)[::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [3, 4, 5, 0, 1, 2])
+    i = nditer(a.reshape(2, 3)[:, ::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [2, 1, 0, 5, 4, 3])
+    i = nditer(a.reshape(2, 3)[::-1, ::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [5, 4, 3, 2, 1, 0])
+    # 2D reversed Fortran-order
+    i = nditer(a.reshape(2, 3).copy(order='F')[::-1],
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [3, 0, 4, 1, 5, 2])
+    i = nditer(a.reshape(2, 3).copy(order='F')[:, ::-1],
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [2, 5, 1, 4, 0, 3])
+    i = nditer(a.reshape(2, 3).copy(order='F')[::-1, ::-1],
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i), [5, 2, 4, 1, 3, 0])
+
+def test_iter_best_order_c_index_3d():
+    # The C index should be correct with any reordering
+
+    a = arange(12)
+    # 3D C-order
+    i = nditer(a.reshape(2, 3, 2), ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11])
+    # 3D Fortran-order
+    i = nditer(a.reshape(2, 3, 2).copy(order='F'),
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11])
+    # 3D reversed C-order
+    i = nditer(a.reshape(2, 3, 2)[::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [6, 7, 8, 9, 10, 11, 0, 1, 2, 3, 4, 5])
+    i = nditer(a.reshape(2, 3, 2)[:, ::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [4, 5, 2, 3, 0, 1, 10, 11, 8, 9, 6, 7])
+    i = nditer(a.reshape(2, 3, 2)[:, :, ::-1], ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10])
+    # 3D reversed Fortran-order
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[::-1],
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [6, 0, 8, 2, 10, 4, 7, 1, 9, 3, 11, 5])
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, ::-1],
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [4, 10, 2, 8, 0, 6, 5, 11, 3, 9, 1, 7])
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, :, ::-1],
+                                    ['c_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [1, 7, 3, 9, 5, 11, 0, 6, 2, 8, 4, 10])
+
+def test_iter_best_order_f_index_1d():
+    # The Fortran index should be correct with any reordering
+
+    a = arange(4)
+    # 1D order
+    i = nditer(a, ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [0, 1, 2, 3])
+    # 1D reversed order
+    i = nditer(a[::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [3, 2, 1, 0])
+
+def test_iter_best_order_f_index_2d():
+    # The Fortran index should be correct with any reordering
+
+    a = arange(6)
+    # 2D C-order
+    i = nditer(a.reshape(2, 3), ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [0, 2, 4, 1, 3, 5])
+    # 2D Fortran-order
+    i = nditer(a.reshape(2, 3).copy(order='F'),
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [0, 1, 2, 3, 4, 5])
+    # 2D reversed C-order
+    i = nditer(a.reshape(2, 3)[::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [1, 3, 5, 0, 2, 4])
+    i = nditer(a.reshape(2, 3)[:, ::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [4, 2, 0, 5, 3, 1])
+    i = nditer(a.reshape(2, 3)[::-1, ::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [5, 3, 1, 4, 2, 0])
+    # 2D reversed Fortran-order
+    i = nditer(a.reshape(2, 3).copy(order='F')[::-1],
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [1, 0, 3, 2, 5, 4])
+    i = nditer(a.reshape(2, 3).copy(order='F')[:, ::-1],
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [4, 5, 2, 3, 0, 1])
+    i = nditer(a.reshape(2, 3).copy(order='F')[::-1, ::-1],
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i), [5, 4, 3, 2, 1, 0])
+
+def test_iter_best_order_f_index_3d():
+    # The Fortran index should be correct with any reordering
+
+    a = arange(12)
+    # 3D C-order
+    i = nditer(a.reshape(2, 3, 2), ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11])
+    # 3D Fortran-order
+    i = nditer(a.reshape(2, 3, 2).copy(order='F'),
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11])
+    # 3D reversed C-order
+    i = nditer(a.reshape(2, 3, 2)[::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [1, 7, 3, 9, 5, 11, 0, 6, 2, 8, 4, 10])
+    i = nditer(a.reshape(2, 3, 2)[:, ::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [4, 10, 2, 8, 0, 6, 5, 11, 3, 9, 1, 7])
+    i = nditer(a.reshape(2, 3, 2)[:, :, ::-1], ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [6, 0, 8, 2, 10, 4, 7, 1, 9, 3, 11, 5])
+    # 3D reversed Fortran-order
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[::-1],
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10])
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, ::-1],
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [4, 5, 2, 3, 0, 1, 10, 11, 8, 9, 6, 7])
+    i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, :, ::-1],
+                                    ['f_index'], [['readonly']])
+    assert_equal(iter_indices(i),
+                            [6, 7, 8, 9, 10, 11, 0, 1, 2, 3, 4, 5])
+
+def test_iter_no_inner_full_coalesce():
+    # Check no_inner iterators which coalesce into a single inner loop
+
+    for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]:
+        size = np.prod(shape)
+        a = arange(size)
+        # Test each combination of forward and backwards indexing
+        for dirs in range(2**len(shape)):
+            dirs_index = [slice(None)] * len(shape)
+            for bit in range(len(shape)):
+                if ((2**bit) & dirs):
+                    dirs_index[bit] = slice(None, None, -1)
+            dirs_index = tuple(dirs_index)
+
+            aview = a.reshape(shape)[dirs_index]
+            # C-order
+            i = nditer(aview, ['external_loop'], [['readonly']])
+            assert_equal(i.ndim, 1)
+            assert_equal(i[0].shape, (size,))
+            # Fortran-order
+            i = nditer(aview.T, ['external_loop'], [['readonly']])
+            assert_equal(i.ndim, 1)
+            assert_equal(i[0].shape, (size,))
+            # Other order
+            if len(shape) > 2:
+                i = nditer(aview.swapaxes(0, 1),
+                                    ['external_loop'], [['readonly']])
+                assert_equal(i.ndim, 1)
+                assert_equal(i[0].shape, (size,))
+
+def test_iter_no_inner_dim_coalescing():
+    # Check no_inner iterators whose dimensions may not coalesce completely
+
+    # Skipping the last element in a dimension prevents coalescing
+    # with the next-bigger dimension
+    a = arange(24).reshape(2, 3, 4)[:, :, :-1]
+    i = nditer(a, ['external_loop'], [['readonly']])
+    assert_equal(i.ndim, 2)
+    assert_equal(i[0].shape, (3,))
+    a = arange(24).reshape(2, 3, 4)[:, :-1, :]
+    i = nditer(a, ['external_loop'], [['readonly']])
+    assert_equal(i.ndim, 2)
+    assert_equal(i[0].shape, (8,))
+    a = arange(24).reshape(2, 3, 4)[:-1, :, :]
+    i = nditer(a, ['external_loop'], [['readonly']])
+    assert_equal(i.ndim, 1)
+    assert_equal(i[0].shape, (12,))
+
+    # Even with lots of 1-sized dimensions, should still coalesce
+    a = arange(24).reshape(1, 1, 2, 1, 1, 3, 1, 1, 4, 1, 1)
+    i = nditer(a, ['external_loop'], [['readonly']])
+    assert_equal(i.ndim, 1)
+    assert_equal(i[0].shape, (24,))
+
+def test_iter_dim_coalescing():
+    # Check that the correct number of dimensions are coalesced
+
+    # Tracking a multi-index disables coalescing
+    a = arange(24).reshape(2, 3, 4)
+    i = nditer(a, ['multi_index'], [['readonly']])
+    assert_equal(i.ndim, 3)
+
+    # A tracked index can allow coalescing if it's compatible with the array
+    a3d = arange(24).reshape(2, 3, 4)
+    i = nditer(a3d, ['c_index'], [['readonly']])
+    assert_equal(i.ndim, 1)
+    i = nditer(a3d.swapaxes(0, 1), ['c_index'], [['readonly']])
+    assert_equal(i.ndim, 3)
+    i = nditer(a3d.T, ['c_index'], [['readonly']])
+    assert_equal(i.ndim, 3)
+    i = nditer(a3d.T, ['f_index'], [['readonly']])
+    assert_equal(i.ndim, 1)
+    i = nditer(a3d.T.swapaxes(0, 1), ['f_index'], [['readonly']])
+    assert_equal(i.ndim, 3)
+
+    # When C or F order is forced, coalescing may still occur
+    a3d = arange(24).reshape(2, 3, 4)
+    i = nditer(a3d, order='C')
+    assert_equal(i.ndim, 1)
+    i = nditer(a3d.T, order='C')
+    assert_equal(i.ndim, 3)
+    i = nditer(a3d, order='F')
+    assert_equal(i.ndim, 3)
+    i = nditer(a3d.T, order='F')
+    assert_equal(i.ndim, 1)
+    i = nditer(a3d, order='A')
+    assert_equal(i.ndim, 1)
+    i = nditer(a3d.T, order='A')
+    assert_equal(i.ndim, 1)
+
+def test_iter_broadcasting():
+    # Standard NumPy broadcasting rules
+
+    # 1D with scalar
+    i = nditer([arange(6), np.int32(2)], ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 6)
+    assert_equal(i.shape, (6,))
+
+    # 2D with scalar
+    i = nditer([arange(6).reshape(2, 3), np.int32(2)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 6)
+    assert_equal(i.shape, (2, 3))
+    # 2D with 1D
+    i = nditer([arange(6).reshape(2, 3), arange(3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 6)
+    assert_equal(i.shape, (2, 3))
+    i = nditer([arange(2).reshape(2, 1), arange(3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 6)
+    assert_equal(i.shape, (2, 3))
+    # 2D with 2D
+    i = nditer([arange(2).reshape(2, 1), arange(3).reshape(1, 3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 6)
+    assert_equal(i.shape, (2, 3))
+
+    # 3D with scalar
+    i = nditer([np.int32(2), arange(24).reshape(4, 2, 3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    # 3D with 1D
+    i = nditer([arange(3), arange(24).reshape(4, 2, 3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    i = nditer([arange(3), arange(8).reshape(4, 2, 1)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    # 3D with 2D
+    i = nditer([arange(6).reshape(2, 3), arange(24).reshape(4, 2, 3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    i = nditer([arange(2).reshape(2, 1), arange(24).reshape(4, 2, 3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    i = nditer([arange(3).reshape(1, 3), arange(8).reshape(4, 2, 1)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    # 3D with 3D
+    i = nditer([arange(2).reshape(1, 2, 1), arange(3).reshape(1, 1, 3),
+                        arange(4).reshape(4, 1, 1)],
+                        ['multi_index'], [['readonly']] * 3)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    i = nditer([arange(6).reshape(1, 2, 3), arange(4).reshape(4, 1, 1)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+    i = nditer([arange(24).reshape(4, 2, 3), arange(12).reshape(4, 1, 3)],
+                        ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.itersize, 24)
+    assert_equal(i.shape, (4, 2, 3))
+
+def test_iter_itershape():
+    # Check that allocated outputs work with a specified shape
+    a = np.arange(6, dtype='i2').reshape(2, 3)
+    i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']],
+                            op_axes=[[0, 1, None], None],
+                            itershape=(-1, -1, 4))
+    assert_equal(i.operands[1].shape, (2, 3, 4))
+    assert_equal(i.operands[1].strides, (24, 8, 2))
+
+    i = nditer([a.T, None], [], [['readonly'], ['writeonly', 'allocate']],
+                            op_axes=[[0, 1, None], None],
+                            itershape=(-1, -1, 4))
+    assert_equal(i.operands[1].shape, (3, 2, 4))
+    assert_equal(i.operands[1].strides, (8, 24, 2))
+
+    i = nditer([a.T, None], [], [['readonly'], ['writeonly', 'allocate']],
+                            order='F',
+                            op_axes=[[0, 1, None], None],
+                            itershape=(-1, -1, 4))
+    assert_equal(i.operands[1].shape, (3, 2, 4))
+    assert_equal(i.operands[1].strides, (2, 6, 12))
+
+    # If we specify 1 in the itershape, it shouldn't allow broadcasting
+    # of that dimension to a bigger value
+    assert_raises(ValueError, nditer, [a, None], [],
+                            [['readonly'], ['writeonly', 'allocate']],
+                            op_axes=[[0, 1, None], None],
+                            itershape=(-1, 1, 4))
+    # Test bug that for no op_axes but itershape, they are NULLed correctly
+    i = np.nditer([np.ones(2), None, None], itershape=(2,))
+
+def test_iter_broadcasting_errors():
+    # Check that errors are thrown for bad broadcasting shapes
+
+    # 1D with 1D
+    assert_raises(ValueError, nditer, [arange(2), arange(3)],
+                    [], [['readonly']] * 2)
+    # 2D with 1D
+    assert_raises(ValueError, nditer,
+                    [arange(6).reshape(2, 3), arange(2)],
+                    [], [['readonly']] * 2)
+    # 2D with 2D
+    assert_raises(ValueError, nditer,
+                    [arange(6).reshape(2, 3), arange(9).reshape(3, 3)],
+                    [], [['readonly']] * 2)
+    assert_raises(ValueError, nditer,
+                    [arange(6).reshape(2, 3), arange(4).reshape(2, 2)],
+                    [], [['readonly']] * 2)
+    # 3D with 3D
+    assert_raises(ValueError, nditer,
+                    [arange(36).reshape(3, 3, 4), arange(24).reshape(2, 3, 4)],
+                    [], [['readonly']] * 2)
+    assert_raises(ValueError, nditer,
+                    [arange(8).reshape(2, 4, 1), arange(24).reshape(2, 3, 4)],
+                    [], [['readonly']] * 2)
+
+    # Verify that the error message mentions the right shapes
+    try:
+        nditer([arange(2).reshape(1, 2, 1),
+                arange(3).reshape(1, 3),
+                arange(6).reshape(2, 3)],
+               [],
+               [['readonly'], ['readonly'], ['writeonly', 'no_broadcast']])
+        raise AssertionError('Should have raised a broadcast error')
+    except ValueError as e:
+        msg = str(e)
+        # The message should contain the shape of the 3rd operand
+        assert_(msg.find('(2,3)') >= 0,
+                f'Message "{msg}" doesn\'t contain operand shape (2,3)')
+        # The message should contain the broadcast shape
+        assert_(msg.find('(1,2,3)') >= 0,
+                f'Message "{msg}" doesn\'t contain broadcast shape (1,2,3)')
+
+    try:
+        nditer([arange(6).reshape(2, 3), arange(2)],
+               [],
+               [['readonly'], ['readonly']],
+               op_axes=[[0, 1], [0, np.newaxis]],
+               itershape=(4, 3))
+        raise AssertionError('Should have raised a broadcast error')
+    except ValueError as e:
+        msg = str(e)
+        # The message should contain "shape->remappedshape" for each operand
+        assert_(msg.find('(2,3)->(2,3)') >= 0,
+            f'Message "{msg}" doesn\'t contain operand shape (2,3)->(2,3)')
+        assert_(msg.find('(2,)->(2,newaxis)') >= 0,
+                ('Message "%s" doesn\'t contain remapped operand shape'
+                '(2,)->(2,newaxis)') % msg)
+        # The message should contain the itershape parameter
+        assert_(msg.find('(4,3)') >= 0,
+                f'Message "{msg}" doesn\'t contain itershape parameter (4,3)')
+
+    try:
+        nditer([np.zeros((2, 1, 1)), np.zeros((2,))],
+               [],
+               [['writeonly', 'no_broadcast'], ['readonly']])
+        raise AssertionError('Should have raised a broadcast error')
+    except ValueError as e:
+        msg = str(e)
+        # The message should contain the shape of the bad operand
+        assert_(msg.find('(2,1,1)') >= 0,
+            f'Message "{msg}" doesn\'t contain operand shape (2,1,1)')
+        # The message should contain the broadcast shape
+        assert_(msg.find('(2,1,2)') >= 0,
+                f'Message "{msg}" doesn\'t contain the broadcast shape (2,1,2)')
+
+def test_iter_flags_errors():
+    # Check that bad combinations of flags produce errors
+
+    a = arange(6)
+
+    # Not enough operands
+    assert_raises(ValueError, nditer, [], [], [])
+    # Bad global flag
+    assert_raises(ValueError, nditer, [a], ['bad flag'], [['readonly']])
+    # Bad op flag
+    assert_raises(ValueError, nditer, [a], [], [['readonly', 'bad flag']])
+    # Bad order parameter
+    assert_raises(ValueError, nditer, [a], [], [['readonly']], order='G')
+    # Bad casting parameter
+    assert_raises(ValueError, nditer, [a], [], [['readonly']], casting='noon')
+    # op_flags must match ops
+    assert_raises(ValueError, nditer, [a] * 3, [], [['readonly']] * 2)
+    # Cannot track both a C and an F index
+    assert_raises(ValueError, nditer, a,
+                ['c_index', 'f_index'], [['readonly']])
+    # Inner iteration and multi-indices/indices are incompatible
+    assert_raises(ValueError, nditer, a,
+                ['external_loop', 'multi_index'], [['readonly']])
+    assert_raises(ValueError, nditer, a,
+                ['external_loop', 'c_index'], [['readonly']])
+    assert_raises(ValueError, nditer, a,
+                ['external_loop', 'f_index'], [['readonly']])
+    # Must specify exactly one of readwrite/readonly/writeonly per operand
+    assert_raises(ValueError, nditer, a, [], [[]])
+    assert_raises(ValueError, nditer, a, [], [['readonly', 'writeonly']])
+    assert_raises(ValueError, nditer, a, [], [['readonly', 'readwrite']])
+    assert_raises(ValueError, nditer, a, [], [['writeonly', 'readwrite']])
+    assert_raises(ValueError, nditer, a,
+                [], [['readonly', 'writeonly', 'readwrite']])
+    # Python scalars are always readonly
+    assert_raises(TypeError, nditer, 1.5, [], [['writeonly']])
+    assert_raises(TypeError, nditer, 1.5, [], [['readwrite']])
+    # Array scalars are always readonly
+    assert_raises(TypeError, nditer, np.int32(1), [], [['writeonly']])
+    assert_raises(TypeError, nditer, np.int32(1), [], [['readwrite']])
+    # Check readonly array
+    a.flags.writeable = False
+    assert_raises(ValueError, nditer, a, [], [['writeonly']])
+    assert_raises(ValueError, nditer, a, [], [['readwrite']])
+    a.flags.writeable = True
+    # Multi-indices available only with the multi_index flag
+    i = nditer(arange(6), [], [['readonly']])
+    assert_raises(ValueError, lambda i: i.multi_index, i)
+    # Index available only with an index flag
+    assert_raises(ValueError, lambda i: i.index, i)
+    # GotoCoords and GotoIndex incompatible with buffering or no_inner
+
+    def assign_multi_index(i):
+        i.multi_index = (0,)
+
+    def assign_index(i):
+        i.index = 0
+
+    def assign_iterindex(i):
+        i.iterindex = 0
+
+    def assign_iterrange(i):
+        i.iterrange = (0, 1)
+    i = nditer(arange(6), ['external_loop'])
+    assert_raises(ValueError, assign_multi_index, i)
+    assert_raises(ValueError, assign_index, i)
+    assert_raises(ValueError, assign_iterindex, i)
+    assert_raises(ValueError, assign_iterrange, i)
+    i = nditer(arange(6), ['buffered'])
+    assert_raises(ValueError, assign_multi_index, i)
+    assert_raises(ValueError, assign_index, i)
+    assert_raises(ValueError, assign_iterrange, i)
+    # Can't iterate if size is zero
+    assert_raises(ValueError, nditer, np.array([]))
+
+def test_iter_slice():
+    a, b, c = np.arange(3), np.arange(3), np.arange(3.)
+    i = nditer([a, b, c], [], ['readwrite'])
+    with i:
+        i[0:2] = (3, 3)
+        assert_equal(a, [3, 1, 2])
+        assert_equal(b, [3, 1, 2])
+        assert_equal(c, [0, 1, 2])
+        i[1] = 12
+        assert_equal(i[0:2], [3, 12])
+
+def test_iter_assign_mapping():
+    a = np.arange(24, dtype='f8').reshape(2, 3, 4).T
+    it = np.nditer(a, [], [['readwrite', 'updateifcopy']],
+                       casting='same_kind', op_dtypes=[np.dtype('f4')])
+    with it:
+        it.operands[0][...] = 3
+        it.operands[0][...] = 14
+    assert_equal(a, 14)
+    it = np.nditer(a, [], [['readwrite', 'updateifcopy']],
+                       casting='same_kind', op_dtypes=[np.dtype('f4')])
+    with it:
+        x = it.operands[0][-1:1]
+        x[...] = 14
+        it.operands[0][...] = -1234
+    assert_equal(a, -1234)
+    # check for no warnings on dealloc
+    x = None
+    it = None
+
+def test_iter_nbo_align_contig():
+    # Check that byte order, alignment, and contig changes work
+
+    # Byte order change by requesting a specific dtype
+    a = np.arange(6, dtype='f4')
+    au = a.byteswap()
+    au = au.view(au.dtype.newbyteorder())
+    assert_(a.dtype.byteorder != au.dtype.byteorder)
+    i = nditer(au, [], [['readwrite', 'updateifcopy']],
+                        casting='equiv',
+                        op_dtypes=[np.dtype('f4')])
+    with i:
+        # context manager triggers WRITEBACKIFCOPY on i at exit
+        assert_equal(i.dtypes[0].byteorder, a.dtype.byteorder)
+        assert_equal(i.operands[0].dtype.byteorder, a.dtype.byteorder)
+        assert_equal(i.operands[0], a)
+        i.operands[0][:] = 2
+    assert_equal(au, [2] * 6)
+    del i  # should not raise a warning
+    # Byte order change by requesting NBO
+    a = np.arange(6, dtype='f4')
+    au = a.byteswap()
+    au = au.view(au.dtype.newbyteorder())
+    assert_(a.dtype.byteorder != au.dtype.byteorder)
+    with nditer(au, [], [['readwrite', 'updateifcopy', 'nbo']],
+                        casting='equiv') as i:
+        # context manager triggers UPDATEIFCOPY on i at exit
+        assert_equal(i.dtypes[0].byteorder, a.dtype.byteorder)
+        assert_equal(i.operands[0].dtype.byteorder, a.dtype.byteorder)
+        assert_equal(i.operands[0], a)
+        i.operands[0][:] = 12345
+        i.operands[0][:] = 2
+    assert_equal(au, [2] * 6)
+
+    # Unaligned input
+    a = np.zeros((6 * 4 + 1,), dtype='i1')[1:]
+    a = a.view('f4')
+    a[:] = np.arange(6, dtype='f4')
+    assert_(not a.flags.aligned)
+    # Without 'aligned', shouldn't copy
+    i = nditer(a, [], [['readonly']])
+    assert_(not i.operands[0].flags.aligned)
+    assert_equal(i.operands[0], a)
+    # With 'aligned', should make a copy
+    with nditer(a, [], [['readwrite', 'updateifcopy', 'aligned']]) as i:
+        assert_(i.operands[0].flags.aligned)
+        # context manager triggers UPDATEIFCOPY on i at exit
+        assert_equal(i.operands[0], a)
+        i.operands[0][:] = 3
+    assert_equal(a, [3] * 6)
+
+    # Discontiguous input
+    a = arange(12)
+    # If it is contiguous, shouldn't copy
+    i = nditer(a[:6], [], [['readonly']])
+    assert_(i.operands[0].flags.contiguous)
+    assert_equal(i.operands[0], a[:6])
+    # If it isn't contiguous, should buffer
+    i = nditer(a[::2], ['buffered', 'external_loop'],
+                        [['readonly', 'contig']],
+                        buffersize=10)
+    assert_(i[0].flags.contiguous)
+    assert_equal(i[0], a[::2])
+
+def test_iter_array_cast():
+    # Check that arrays are cast as requested
+
+    # No cast 'f4' -> 'f4'
+    a = np.arange(6, dtype='f4').reshape(2, 3)
+    i = nditer(a, [], [['readwrite']], op_dtypes=[np.dtype('f4')])
+    with i:
+        assert_equal(i.operands[0], a)
+        assert_equal(i.operands[0].dtype, np.dtype('f4'))
+
+    # Byte-order cast '<f4' -> '>f4'
+    a = np.arange(6, dtype='<f4').reshape(2, 3)
+    with nditer(a, [], [['readwrite', 'updateifcopy']],
+            casting='equiv',
+            op_dtypes=[np.dtype('>f4')]) as i:
+        assert_equal(i.operands[0], a)
+        assert_equal(i.operands[0].dtype, np.dtype('>f4'))
+
+    # Safe case 'f4' -> 'f8'
+    a = np.arange(24, dtype='f4').reshape(2, 3, 4).swapaxes(1, 2)
+    i = nditer(a, [], [['readonly', 'copy']],
+            casting='safe',
+            op_dtypes=[np.dtype('f8')])
+    assert_equal(i.operands[0], a)
+    assert_equal(i.operands[0].dtype, np.dtype('f8'))
+    # The memory layout of the temporary should match a (a is (48,4,16))
+    # except negative strides get flipped to positive strides.
+    assert_equal(i.operands[0].strides, (96, 8, 32))
+    a = a[::-1, :, ::-1]
+    i = nditer(a, [], [['readonly', 'copy']],
+            casting='safe',
+            op_dtypes=[np.dtype('f8')])
+    assert_equal(i.operands[0], a)
+    assert_equal(i.operands[0].dtype, np.dtype('f8'))
+    assert_equal(i.operands[0].strides, (96, 8, 32))
+
+    # Same-kind cast 'f8' -> 'f4' -> 'f8'
+    a = np.arange(24, dtype='f8').reshape(2, 3, 4).T
+    with nditer(a, [],
+            [['readwrite', 'updateifcopy']],
+            casting='same_kind',
+            op_dtypes=[np.dtype('f4')]) as i:
+        assert_equal(i.operands[0], a)
+        assert_equal(i.operands[0].dtype, np.dtype('f4'))
+        assert_equal(i.operands[0].strides, (4, 16, 48))
+        # Check that WRITEBACKIFCOPY is activated at exit
+        i.operands[0][2, 1, 1] = -12.5
+        assert_(a[2, 1, 1] != -12.5)
+    assert_equal(a[2, 1, 1], -12.5)
+
+    a = np.arange(6, dtype='i4')[::-2]
+    with nditer(a, [],
+            [['writeonly', 'updateifcopy']],
+            casting='unsafe',
+            op_dtypes=[np.dtype('f4')]) as i:
+        assert_equal(i.operands[0].dtype, np.dtype('f4'))
+        # Even though the stride was negative in 'a', it
+        # becomes positive in the temporary
+        assert_equal(i.operands[0].strides, (4,))
+        i.operands[0][:] = [1, 2, 3]
+    assert_equal(a, [1, 2, 3])
+
+def test_iter_array_cast_errors():
+    # Check that invalid casts are caught
+
+    # Need to enable copying for casts to occur
+    assert_raises(TypeError, nditer, arange(2, dtype='f4'), [],
+                [['readonly']], op_dtypes=[np.dtype('f8')])
+    # Also need to allow casting for casts to occur
+    assert_raises(TypeError, nditer, arange(2, dtype='f4'), [],
+                [['readonly', 'copy']], casting='no',
+                op_dtypes=[np.dtype('f8')])
+    assert_raises(TypeError, nditer, arange(2, dtype='f4'), [],
+                [['readonly', 'copy']], casting='equiv',
+                op_dtypes=[np.dtype('f8')])
+    assert_raises(TypeError, nditer, arange(2, dtype='f8'), [],
+                [['writeonly', 'updateifcopy']],
+                casting='no',
+                op_dtypes=[np.dtype('f4')])
+    assert_raises(TypeError, nditer, arange(2, dtype='f8'), [],
+                [['writeonly', 'updateifcopy']],
+                casting='equiv',
+                op_dtypes=[np.dtype('f4')])
+    # '<f4' -> '>f4' should not work with casting='no'
+    assert_raises(TypeError, nditer, arange(2, dtype='<f4'), [],
+                [['readonly', 'copy']], casting='no',
+                op_dtypes=[np.dtype('>f4')])
+    # 'f4' -> 'f8' is a safe cast, but 'f8' -> 'f4' isn't
+    assert_raises(TypeError, nditer, arange(2, dtype='f4'), [],
+                [['readwrite', 'updateifcopy']],
+                casting='safe',
+                op_dtypes=[np.dtype('f8')])
+    assert_raises(TypeError, nditer, arange(2, dtype='f8'), [],
+                [['readwrite', 'updateifcopy']],
+                casting='safe',
+                op_dtypes=[np.dtype('f4')])
+    # 'f4' -> 'i4' is neither a safe nor a same-kind cast
+    assert_raises(TypeError, nditer, arange(2, dtype='f4'), [],
+                [['readonly', 'copy']],
+                casting='same_kind',
+                op_dtypes=[np.dtype('i4')])
+    assert_raises(TypeError, nditer, arange(2, dtype='i4'), [],
+                [['writeonly', 'updateifcopy']],
+                casting='same_kind',
+                op_dtypes=[np.dtype('f4')])
+
+def test_iter_scalar_cast():
+    # Check that scalars are cast as requested
+
+    # No cast 'f4' -> 'f4'
+    i = nditer(np.float32(2.5), [], [['readonly']],
+                    op_dtypes=[np.dtype('f4')])
+    assert_equal(i.dtypes[0], np.dtype('f4'))
+    assert_equal(i.value.dtype, np.dtype('f4'))
+    assert_equal(i.value, 2.5)
+    # Safe cast 'f4' -> 'f8'
+    i = nditer(np.float32(2.5), [],
+                    [['readonly', 'copy']],
+                    casting='safe',
+                    op_dtypes=[np.dtype('f8')])
+    assert_equal(i.dtypes[0], np.dtype('f8'))
+    assert_equal(i.value.dtype, np.dtype('f8'))
+    assert_equal(i.value, 2.5)
+    # Same-kind cast 'f8' -> 'f4'
+    i = nditer(np.float64(2.5), [],
+                    [['readonly', 'copy']],
+                    casting='same_kind',
+                    op_dtypes=[np.dtype('f4')])
+    assert_equal(i.dtypes[0], np.dtype('f4'))
+    assert_equal(i.value.dtype, np.dtype('f4'))
+    assert_equal(i.value, 2.5)
+    # Unsafe cast 'f8' -> 'i4'
+    i = nditer(np.float64(3.0), [],
+                    [['readonly', 'copy']],
+                    casting='unsafe',
+                    op_dtypes=[np.dtype('i4')])
+    assert_equal(i.dtypes[0], np.dtype('i4'))
+    assert_equal(i.value.dtype, np.dtype('i4'))
+    assert_equal(i.value, 3)
+    # Readonly scalars may be cast even without setting COPY or BUFFERED
+    i = nditer(3, [], [['readonly']], op_dtypes=[np.dtype('f8')])
+    assert_equal(i[0].dtype, np.dtype('f8'))
+    assert_equal(i[0], 3.)
+
+def test_iter_scalar_cast_errors():
+    # Check that invalid casts are caught
+
+    # Need to allow copying/buffering for write casts of scalars to occur
+    assert_raises(TypeError, nditer, np.float32(2), [],
+                [['readwrite']], op_dtypes=[np.dtype('f8')])
+    assert_raises(TypeError, nditer, 2.5, [],
+                [['readwrite']], op_dtypes=[np.dtype('f4')])
+    # 'f8' -> 'f4' isn't a safe cast if the value would overflow
+    assert_raises(TypeError, nditer, np.float64(1e60), [],
+                [['readonly']],
+                casting='safe',
+                op_dtypes=[np.dtype('f4')])
+    # 'f4' -> 'i4' is neither a safe nor a same-kind cast
+    assert_raises(TypeError, nditer, np.float32(2), [],
+                [['readonly']],
+                casting='same_kind',
+                op_dtypes=[np.dtype('i4')])
+
+def test_iter_object_arrays_basic():
+    # Check that object arrays work
+
+    obj = {'a': 3, 'b': 'd'}
+    a = np.array([[1, 2, 3], None, obj, None], dtype='O')
+    if HAS_REFCOUNT:
+        rc = sys.getrefcount(obj)
+
+    # Need to allow references for object arrays
+    assert_raises(TypeError, nditer, a)
+    if HAS_REFCOUNT:
+        assert_equal(sys.getrefcount(obj), rc)
+
+    i = nditer(a, ['refs_ok'], ['readonly'])
+    vals = [x_[()] for x_ in i]
+    assert_equal(np.array(vals, dtype='O'), a)
+    vals, i, x = [None] * 3
+    if HAS_REFCOUNT:
+        assert_equal(sys.getrefcount(obj), rc)
+
+    i = nditer(a.reshape(2, 2).T, ['refs_ok', 'buffered'],
+                        ['readonly'], order='C')
+    assert_(i.iterationneedsapi)
+    vals = [x_[()] for x_ in i]
+    assert_equal(np.array(vals, dtype='O'), a.reshape(2, 2).ravel(order='F'))
+    vals, i, x = [None] * 3
+    if HAS_REFCOUNT:
+        assert_equal(sys.getrefcount(obj), rc)
+
+    i = nditer(a.reshape(2, 2).T, ['refs_ok', 'buffered'],
+                        ['readwrite'], order='C')
+    with i:
+        for x in i:
+            x[...] = None
+        vals, i, x = [None] * 3
+    if HAS_REFCOUNT:
+        assert_(sys.getrefcount(obj) == rc - 1)
+    assert_equal(a, np.array([None] * 4, dtype='O'))
+
+def test_iter_object_arrays_conversions():
+    # Conversions to/from objects
+    a = np.arange(6, dtype='O')
+    i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'],
+                    casting='unsafe', op_dtypes='i4')
+    with i:
+        for x in i:
+            x[...] += 1
+    assert_equal(a, np.arange(6) + 1)
+
+    a = np.arange(6, dtype='i4')
+    i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'],
+                    casting='unsafe', op_dtypes='O')
+    with i:
+        for x in i:
+            x[...] += 1
+    assert_equal(a, np.arange(6) + 1)
+
+    # Non-contiguous object array
+    a = np.zeros((6,), dtype=[('p', 'i1'), ('a', 'O')])
+    a = a['a']
+    a[:] = np.arange(6)
+    i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'],
+                    casting='unsafe', op_dtypes='i4')
+    with i:
+        for x in i:
+            x[...] += 1
+    assert_equal(a, np.arange(6) + 1)
+
+    # Non-contiguous value array
+    a = np.zeros((6,), dtype=[('p', 'i1'), ('a', 'i4')])
+    a = a['a']
+    a[:] = np.arange(6) + 98172488
+    i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'],
+                    casting='unsafe', op_dtypes='O')
+    with i:
+        ob = i[0][()]
+        if HAS_REFCOUNT:
+            rc = sys.getrefcount(ob)
+        for x in i:
+            x[...] += 1
+        if HAS_REFCOUNT:
+            newrc = sys.getrefcount(ob)
+            assert_(newrc == rc - 1)
+    assert_equal(a, np.arange(6) + 98172489)
+
+def test_iter_common_dtype():
+    # Check that the iterator finds a common data type correctly
+    # (some checks are somewhat duplicate after adopting NEP 50)
+
+    i = nditer([array([3], dtype='f4'), array([0], dtype='f8')],
+                    ['common_dtype'],
+                    [['readonly', 'copy']] * 2,
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('f8'))
+    assert_equal(i.dtypes[1], np.dtype('f8'))
+    i = nditer([array([3], dtype='i4'), array([0], dtype='f4')],
+                    ['common_dtype'],
+                    [['readonly', 'copy']] * 2,
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('f8'))
+    assert_equal(i.dtypes[1], np.dtype('f8'))
+    i = nditer([array([3], dtype='f4'), array(0, dtype='f8')],
+                    ['common_dtype'],
+                    [['readonly', 'copy']] * 2,
+                    casting='same_kind')
+    assert_equal(i.dtypes[0], np.dtype('f8'))
+    assert_equal(i.dtypes[1], np.dtype('f8'))
+    i = nditer([array([3], dtype='u4'), array(0, dtype='i4')],
+                    ['common_dtype'],
+                    [['readonly', 'copy']] * 2,
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('i8'))
+    assert_equal(i.dtypes[1], np.dtype('i8'))
+    i = nditer([array([3], dtype='u4'), array(-12, dtype='i4')],
+                    ['common_dtype'],
+                    [['readonly', 'copy']] * 2,
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('i8'))
+    assert_equal(i.dtypes[1], np.dtype('i8'))
+    i = nditer([array([3], dtype='u4'), array(-12, dtype='i4'),
+                 array([2j], dtype='c8'), array([9], dtype='f8')],
+                    ['common_dtype'],
+                    [['readonly', 'copy']] * 4,
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('c16'))
+    assert_equal(i.dtypes[1], np.dtype('c16'))
+    assert_equal(i.dtypes[2], np.dtype('c16'))
+    assert_equal(i.dtypes[3], np.dtype('c16'))
+    assert_equal(i.value, (3, -12, 2j, 9))
+
+    # When allocating outputs, other outputs aren't factored in
+    i = nditer([array([3], dtype='i4'), None, array([2j], dtype='c16')], [],
+                    [['readonly', 'copy'],
+                     ['writeonly', 'allocate'],
+                     ['writeonly']],
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('i4'))
+    assert_equal(i.dtypes[1], np.dtype('i4'))
+    assert_equal(i.dtypes[2], np.dtype('c16'))
+    # But, if common data types are requested, they are
+    i = nditer([array([3], dtype='i4'), None, array([2j], dtype='c16')],
+                    ['common_dtype'],
+                    [['readonly', 'copy'],
+                     ['writeonly', 'allocate'],
+                     ['writeonly']],
+                    casting='safe')
+    assert_equal(i.dtypes[0], np.dtype('c16'))
+    assert_equal(i.dtypes[1], np.dtype('c16'))
+    assert_equal(i.dtypes[2], np.dtype('c16'))
+
+def test_iter_copy_if_overlap():
+    # Ensure the iterator makes copies on read/write overlap, if requested
+
+    # Copy not needed, 1 op
+    for flag in ['readonly', 'writeonly', 'readwrite']:
+        a = arange(10)
+        i = nditer([a], ['copy_if_overlap'], [[flag]])
+        with i:
+            assert_(i.operands[0] is a)
+
+    # Copy needed, 2 ops, read-write overlap
+    x = arange(10)
+    a = x[1:]
+    b = x[:-1]
+    with nditer([a, b], ['copy_if_overlap'], [['readonly'], ['readwrite']]) as i:
+        assert_(not np.shares_memory(*i.operands))
+
+    # Copy not needed with elementwise, 2 ops, exactly same arrays
+    x = arange(10)
+    a = x
+    b = x
+    i = nditer([a, b], ['copy_if_overlap'], [['readonly', 'overlap_assume_elementwise'],
+                                             ['readwrite', 'overlap_assume_elementwise']])
+    with i:
+        assert_(i.operands[0] is a and i.operands[1] is b)
+    with nditer([a, b], ['copy_if_overlap'], [['readonly'], ['readwrite']]) as i:
+        assert_(i.operands[0] is a and not np.shares_memory(i.operands[1], b))
+
+    # Copy not needed, 2 ops, no overlap
+    x = arange(10)
+    a = x[::2]
+    b = x[1::2]
+    i = nditer([a, b], ['copy_if_overlap'], [['readonly'], ['writeonly']])
+    assert_(i.operands[0] is a and i.operands[1] is b)
+
+    # Copy needed, 2 ops, read-write overlap
+    x = arange(4, dtype=np.int8)
+    a = x[3:]
+    b = x.view(np.int32)[:1]
+    with nditer([a, b], ['copy_if_overlap'], [['readonly'], ['writeonly']]) as i:
+        assert_(not np.shares_memory(*i.operands))
+
+    # Copy needed, 3 ops, read-write overlap
+    for flag in ['writeonly', 'readwrite']:
+        x = np.ones([10, 10])
+        a = x
+        b = x.T
+        c = x
+        with nditer([a, b, c], ['copy_if_overlap'],
+                   [['readonly'], ['readonly'], [flag]]) as i:
+            a2, b2, c2 = i.operands
+            assert_(not np.shares_memory(a2, c2))
+            assert_(not np.shares_memory(b2, c2))
+
+    # Copy not needed, 3 ops, read-only overlap
+    x = np.ones([10, 10])
+    a = x
+    b = x.T
+    c = x
+    i = nditer([a, b, c], ['copy_if_overlap'],
+               [['readonly'], ['readonly'], ['readonly']])
+    a2, b2, c2 = i.operands
+    assert_(a is a2)
+    assert_(b is b2)
+    assert_(c is c2)
+
+    # Copy not needed, 3 ops, read-only overlap
+    x = np.ones([10, 10])
+    a = x
+    b = np.ones([10, 10])
+    c = x.T
+    i = nditer([a, b, c], ['copy_if_overlap'],
+               [['readonly'], ['writeonly'], ['readonly']])
+    a2, b2, c2 = i.operands
+    assert_(a is a2)
+    assert_(b is b2)
+    assert_(c is c2)
+
+    # Copy not needed, 3 ops, write-only overlap
+    x = np.arange(7)
+    a = x[:3]
+    b = x[3:6]
+    c = x[4:7]
+    i = nditer([a, b, c], ['copy_if_overlap'],
+               [['readonly'], ['writeonly'], ['writeonly']])
+    a2, b2, c2 = i.operands
+    assert_(a is a2)
+    assert_(b is b2)
+    assert_(c is c2)
+
+def test_iter_op_axes():
+    # Check that custom axes work
+
+    # Reverse the axes
+    a = arange(6).reshape(2, 3)
+    i = nditer([a, a.T], [], [['readonly']] * 2, op_axes=[[0, 1], [1, 0]])
+    assert_(all([x == y for (x, y) in i]))
+    a = arange(24).reshape(2, 3, 4)
+    i = nditer([a.T, a], [], [['readonly']] * 2, op_axes=[[2, 1, 0], None])
+    assert_(all([x == y for (x, y) in i]))
+
+    # Broadcast 1D to any dimension
+    a = arange(1, 31).reshape(2, 3, 5)
+    b = arange(1, 3)
+    i = nditer([a, b], [], [['readonly']] * 2, op_axes=[None, [0, -1, -1]])
+    assert_equal([x * y for (x, y) in i], (a * b.reshape(2, 1, 1)).ravel())
+    b = arange(1, 4)
+    i = nditer([a, b], [], [['readonly']] * 2, op_axes=[None, [-1, 0, -1]])
+    assert_equal([x * y for (x, y) in i], (a * b.reshape(1, 3, 1)).ravel())
+    b = arange(1, 6)
+    i = nditer([a, b], [], [['readonly']] * 2,
+                            op_axes=[None, [np.newaxis, np.newaxis, 0]])
+    assert_equal([x * y for (x, y) in i], (a * b.reshape(1, 1, 5)).ravel())
+
+    # Inner product-style broadcasting
+    a = arange(24).reshape(2, 3, 4)
+    b = arange(40).reshape(5, 2, 4)
+    i = nditer([a, b], ['multi_index'], [['readonly']] * 2,
+                            op_axes=[[0, 1, -1, -1], [-1, -1, 0, 1]])
+    assert_equal(i.shape, (2, 3, 5, 2))
+
+    # Matrix product-style broadcasting
+    a = arange(12).reshape(3, 4)
+    b = arange(20).reshape(4, 5)
+    i = nditer([a, b], ['multi_index'], [['readonly']] * 2,
+                            op_axes=[[0, -1], [-1, 1]])
+    assert_equal(i.shape, (3, 5))
+
+def test_iter_op_axes_errors():
+    # Check that custom axes throws errors for bad inputs
+
+    # Wrong number of items in op_axes
+    a = arange(6).reshape(2, 3)
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[0], [1], [0]])
+    # Out of bounds items in op_axes
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[2, 1], [0, 1]])
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[0, 1], [2, -1]])
+    # Duplicate items in op_axes
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[0, 0], [0, 1]])
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[0, 1], [1, 1]])
+
+    # Different sized arrays in op_axes
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[0, 1], [0, 1, 0]])
+
+    # Non-broadcastable dimensions in the result
+    assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2,
+                                    op_axes=[[0, 1], [1, 0]])
+
+def test_iter_copy():
+    # Check that copying the iterator works correctly
+    a = arange(24).reshape(2, 3, 4)
+
+    # Simple iterator
+    i = nditer(a)
+    j = i.copy()
+    assert_equal([x[()] for x in i], [x[()] for x in j])
+
+    i.iterindex = 3
+    j = i.copy()
+    assert_equal([x[()] for x in i], [x[()] for x in j])
+
+    # Buffered iterator
+    i = nditer(a, ['buffered', 'ranged'], order='F', buffersize=3)
+    j = i.copy()
+    assert_equal([x[()] for x in i], [x[()] for x in j])
+
+    i.iterindex = 3
+    j = i.copy()
+    assert_equal([x[()] for x in i], [x[()] for x in j])
+
+    i.iterrange = (3, 9)
+    j = i.copy()
+    assert_equal([x[()] for x in i], [x[()] for x in j])
+
+    i.iterrange = (2, 18)
+    next(i)
+    next(i)
+    j = i.copy()
+    assert_equal([x[()] for x in i], [x[()] for x in j])
+
+    # Casting iterator
+    with nditer(a, ['buffered'], order='F', casting='unsafe',
+                op_dtypes='f8', buffersize=5) as i:
+        j = i.copy()
+    assert_equal([x[()] for x in j], a.ravel(order='F'))
+
+    a = arange(24, dtype='<i4').reshape(2, 3, 4)
+    with nditer(a, ['buffered'], order='F', casting='unsafe',
+                op_dtypes='>f8', buffersize=5) as i:
+        j = i.copy()
+    assert_equal([x[()] for x in j], a.ravel(order='F'))
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["All"])
+@pytest.mark.parametrize("loop_dtype", np.typecodes["All"])
+@pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning")
+def test_iter_copy_casts(dtype, loop_dtype):
+    # Ensure the dtype is never flexible:
+    if loop_dtype.lower() == "m":
+        loop_dtype = loop_dtype + "[ms]"
+    elif np.dtype(loop_dtype).itemsize == 0:
+        loop_dtype = loop_dtype + "50"
+
+    # Make things a bit more interesting by requiring a byte-swap as well:
+    arr = np.ones(1000, dtype=np.dtype(dtype).newbyteorder())
+    try:
+        expected = arr.astype(loop_dtype)
+    except Exception:
+        # Some casts are not possible, do not worry about them
+        return
+
+    it = np.nditer((arr,), ["buffered", "external_loop", "refs_ok"],
+                   op_dtypes=[loop_dtype], casting="unsafe")
+
+    if np.issubdtype(np.dtype(loop_dtype), np.number):
+        # Casting to strings may be strange, but for simple dtypes do not rely
+        # on the cast being correct:
+        assert_array_equal(expected, np.ones(1000, dtype=loop_dtype))
+
+    it_copy = it.copy()
+    res = next(it)
+    del it
+    res_copy = next(it_copy)
+    del it_copy
+
+    assert_array_equal(res, expected)
+    assert_array_equal(res_copy, expected)
+
+
+def test_iter_copy_casts_structured():
+    # Test a complicated structured dtype for casting, as it requires
+    # both multiple steps and a more complex casting setup.
+    # Includes a structured -> unstructured (any to object), and many other
+    # casts, which cause this to require all steps in the casting machinery
+    # one level down as well as the iterator copy (which uses NpyAuxData clone)
+    in_dtype = np.dtype([("a", np.dtype("i,")),
+                         ("b", np.dtype(">i,<i,>d,S17,>d,3f,O,i1"))])
+    out_dtype = np.dtype([("a", np.dtype("O")),
+                          ("b", np.dtype(">i,>i,S17,>d,>U3,3d,i1,O"))])
+    arr = np.ones(1000, dtype=in_dtype)
+
+    it = np.nditer((arr,), ["buffered", "external_loop", "refs_ok"],
+                   op_dtypes=[out_dtype], casting="unsafe")
+    it_copy = it.copy()
+
+    res1 = next(it)
+    del it
+    res2 = next(it_copy)
+    del it_copy
+
+    expected = arr["a"].astype(out_dtype["a"])
+    assert_array_equal(res1["a"], expected)
+    assert_array_equal(res2["a"], expected)
+
+    for field in in_dtype["b"].names:
+        # Note that the .base avoids the subarray field
+        expected = arr["b"][field].astype(out_dtype["b"][field].base)
+        assert_array_equal(res1["b"][field], expected)
+        assert_array_equal(res2["b"][field], expected)
+
+
+def test_iter_copy_casts_structured2():
+    # Similar to the above, this is a fairly arcane test to cover internals
+    in_dtype = np.dtype([("a", np.dtype("O,O")),
+                         ("b", np.dtype("5O,3O,(1,)O,(1,)i,(1,)O"))])
+    out_dtype = np.dtype([("a", np.dtype("O")),
+                          ("b", np.dtype("O,3i,4O,4O,4i"))])
+
+    arr = np.ones(1, dtype=in_dtype)
+    it = np.nditer((arr,), ["buffered", "external_loop", "refs_ok"],
+                   op_dtypes=[out_dtype], casting="unsafe")
+    it_copy = it.copy()
+
+    res1 = next(it)
+    del it
+    res2 = next(it_copy)
+    del it_copy
+
+    # Array of two structured scalars:
+    for res in res1, res2:
+        # Cast to tuple by getitem, which may be weird and changeable?:
+        assert isinstance(res["a"][0], tuple)
+        assert res["a"][0] == (1, 1)
+
+    for res in res1, res2:
+        assert_array_equal(res["b"]["f0"][0], np.ones(5, dtype=object))
+        assert_array_equal(res["b"]["f1"], np.ones((1, 3), dtype="i"))
+        assert res["b"]["f2"].shape == (1, 4)
+        assert_array_equal(res["b"]["f2"][0], np.ones(4, dtype=object))
+        assert_array_equal(res["b"]["f3"][0], np.ones(4, dtype=object))
+        assert_array_equal(res["b"]["f3"][0], np.ones(4, dtype="i"))
+
+
+def test_iter_allocate_output_simple():
+    # Check that the iterator will properly allocate outputs
+
+    # Simple case
+    a = arange(6)
+    i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')])
+    assert_equal(i.operands[1].shape, a.shape)
+    assert_equal(i.operands[1].dtype, np.dtype('f4'))
+
+def test_iter_allocate_output_buffered_readwrite():
+    # Allocated output with buffering + delay_bufalloc
+
+    a = arange(6)
+    i = nditer([a, None], ['buffered', 'delay_bufalloc'],
+                        [['readonly'], ['allocate', 'readwrite']])
+    with i:
+        i.operands[1][:] = 1
+        i.reset()
+        for x in i:
+            x[1][...] += x[0][...]
+        assert_equal(i.operands[1], a + 1)
+
+def test_iter_allocate_output_itorder():
+    # The allocated output should match the iteration order
+
+    # C-order input, best iteration order
+    a = arange(6, dtype='i4').reshape(2, 3)
+    i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')])
+    assert_equal(i.operands[1].shape, a.shape)
+    assert_equal(i.operands[1].strides, a.strides)
+    assert_equal(i.operands[1].dtype, np.dtype('f4'))
+    # F-order input, best iteration order
+    a = arange(24, dtype='i4').reshape(2, 3, 4).T
+    i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')])
+    assert_equal(i.operands[1].shape, a.shape)
+    assert_equal(i.operands[1].strides, a.strides)
+    assert_equal(i.operands[1].dtype, np.dtype('f4'))
+    # Non-contiguous input, C iteration order
+    a = arange(24, dtype='i4').reshape(2, 3, 4).swapaxes(0, 1)
+    i = nditer([a, None], [],
+                        [['readonly'], ['writeonly', 'allocate']],
+                        order='C',
+                        op_dtypes=[None, np.dtype('f4')])
+    assert_equal(i.operands[1].shape, a.shape)
+    assert_equal(i.operands[1].strides, (32, 16, 4))
+    assert_equal(i.operands[1].dtype, np.dtype('f4'))
+
+def test_iter_allocate_output_opaxes():
+    # Specifying op_axes should work
+
+    a = arange(24, dtype='i4').reshape(2, 3, 4)
+    i = nditer([None, a], [], [['writeonly', 'allocate'], ['readonly']],
+                        op_dtypes=[np.dtype('u4'), None],
+                        op_axes=[[1, 2, 0], None])
+    assert_equal(i.operands[0].shape, (4, 2, 3))
+    assert_equal(i.operands[0].strides, (4, 48, 16))
+    assert_equal(i.operands[0].dtype, np.dtype('u4'))
+
+def test_iter_allocate_output_types_promotion():
+    # Check type promotion of automatic outputs (this was more interesting
+    # before NEP 50...)
+
+    i = nditer([array([3], dtype='f4'), array([0], dtype='f8'), None], [],
+                    [['readonly']] * 2 + [['writeonly', 'allocate']])
+    assert_equal(i.dtypes[2], np.dtype('f8'))
+    i = nditer([array([3], dtype='i4'), array([0], dtype='f4'), None], [],
+                    [['readonly']] * 2 + [['writeonly', 'allocate']])
+    assert_equal(i.dtypes[2], np.dtype('f8'))
+    i = nditer([array([3], dtype='f4'), array(0, dtype='f8'), None], [],
+                    [['readonly']] * 2 + [['writeonly', 'allocate']])
+    assert_equal(i.dtypes[2], np.dtype('f8'))
+    i = nditer([array([3], dtype='u4'), array(0, dtype='i4'), None], [],
+                    [['readonly']] * 2 + [['writeonly', 'allocate']])
+    assert_equal(i.dtypes[2], np.dtype('i8'))
+    i = nditer([array([3], dtype='u4'), array(-12, dtype='i4'), None], [],
+                    [['readonly']] * 2 + [['writeonly', 'allocate']])
+    assert_equal(i.dtypes[2], np.dtype('i8'))
+
+def test_iter_allocate_output_types_byte_order():
+    # Verify the rules for byte order changes
+
+    # When there's just one input, the output type exactly matches
+    a = array([3], dtype='u4')
+    a = a.view(a.dtype.newbyteorder())
+    i = nditer([a, None], [],
+                    [['readonly'], ['writeonly', 'allocate']])
+    assert_equal(i.dtypes[0], i.dtypes[1])
+    # With two or more inputs, the output type is in native byte order
+    i = nditer([a, a, None], [],
+                    [['readonly'], ['readonly'], ['writeonly', 'allocate']])
+    assert_(i.dtypes[0] != i.dtypes[2])
+    assert_equal(i.dtypes[0].newbyteorder('='), i.dtypes[2])
+
+def test_iter_allocate_output_types_scalar():
+    # If the inputs are all scalars, the output should be a scalar
+
+    i = nditer([None, 1, 2.3, np.float32(12), np.complex128(3)], [],
+                [['writeonly', 'allocate']] + [['readonly']] * 4)
+    assert_equal(i.operands[0].dtype, np.dtype('complex128'))
+    assert_equal(i.operands[0].ndim, 0)
+
+def test_iter_allocate_output_subtype():
+    # Make sure that the subtype with priority wins
+    class MyNDArray(np.ndarray):
+        __array_priority__ = 15
+
+    # subclass vs ndarray
+    a = np.array([[1, 2], [3, 4]]).view(MyNDArray)
+    b = np.arange(4).reshape(2, 2).T
+    i = nditer([a, b, None], [],
+               [['readonly'], ['readonly'], ['writeonly', 'allocate']])
+    assert_equal(type(a), type(i.operands[2]))
+    assert_(type(b) is not type(i.operands[2]))
+    assert_equal(i.operands[2].shape, (2, 2))
+
+    # If subtypes are disabled, we should get back an ndarray.
+    i = nditer([a, b, None], [],
+               [['readonly'], ['readonly'],
+                ['writeonly', 'allocate', 'no_subtype']])
+    assert_equal(type(b), type(i.operands[2]))
+    assert_(type(a) is not type(i.operands[2]))
+    assert_equal(i.operands[2].shape, (2, 2))
+
+def test_iter_allocate_output_errors():
+    # Check that the iterator will throw errors for bad output allocations
+
+    # Need an input if no output data type is specified
+    a = arange(6)
+    assert_raises(TypeError, nditer, [a, None], [],
+                        [['writeonly'], ['writeonly', 'allocate']])
+    # Allocated output should be flagged for writing
+    assert_raises(ValueError, nditer, [a, None], [],
+                        [['readonly'], ['allocate', 'readonly']])
+    # Allocated output can't have buffering without delayed bufalloc
+    assert_raises(ValueError, nditer, [a, None], ['buffered'],
+                                            ['allocate', 'readwrite'])
+    # Must specify dtype if there are no inputs (cannot promote existing ones;
+    # maybe this should use the 'f4' here, but it does not historically.)
+    assert_raises(TypeError, nditer, [None, None], [],
+                        [['writeonly', 'allocate'],
+                         ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')])
+    # If using op_axes, must specify all the axes
+    a = arange(24, dtype='i4').reshape(2, 3, 4)
+    assert_raises(ValueError, nditer, [a, None], [],
+                        [['readonly'], ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')],
+                        op_axes=[None, [0, np.newaxis, 1]])
+    # If using op_axes, the axes must be within bounds
+    assert_raises(ValueError, nditer, [a, None], [],
+                        [['readonly'], ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')],
+                        op_axes=[None, [0, 3, 1]])
+    # If using op_axes, there can't be duplicates
+    assert_raises(ValueError, nditer, [a, None], [],
+                        [['readonly'], ['writeonly', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')],
+                        op_axes=[None, [0, 2, 1, 0]])
+    # Not all axes may be specified if a reduction. If there is a hole
+    # in op_axes, this is an error.
+    a = arange(24, dtype='i4').reshape(2, 3, 4)
+    assert_raises(ValueError, nditer, [a, None], ["reduce_ok"],
+                        [['readonly'], ['readwrite', 'allocate']],
+                        op_dtypes=[None, np.dtype('f4')],
+                        op_axes=[None, [0, np.newaxis, 2]])
+
+def test_all_allocated():
+    # When no output and no shape is given, `()` is used as shape.
+    i = np.nditer([None], op_dtypes=["int64"])
+    assert i.operands[0].shape == ()
+    assert i.dtypes == (np.dtype("int64"),)
+
+    i = np.nditer([None], op_dtypes=["int64"], itershape=(2, 3, 4))
+    assert i.operands[0].shape == (2, 3, 4)
+
+def test_iter_remove_axis():
+    a = arange(24).reshape(2, 3, 4)
+
+    i = nditer(a, ['multi_index'])
+    i.remove_axis(1)
+    assert_equal(list(i), a[:, 0, :].ravel())
+
+    a = a[::-1, :, :]
+    i = nditer(a, ['multi_index'])
+    i.remove_axis(0)
+    assert_equal(list(i), a[0, :, :].ravel())
+
+def test_iter_remove_multi_index_inner_loop():
+    # Check that removing multi-index support works
+
+    a = arange(24).reshape(2, 3, 4)
+
+    i = nditer(a, ['multi_index'])
+    assert_equal(i.ndim, 3)
+    assert_equal(i.shape, (2, 3, 4))
+    assert_equal(i.itviews[0].shape, (2, 3, 4))
+
+    # Removing the multi-index tracking causes all dimensions to coalesce
+    before = list(i)
+    i.remove_multi_index()
+    after = list(i)
+
+    assert_equal(before, after)
+    assert_equal(i.ndim, 1)
+    assert_raises(ValueError, lambda i: i.shape, i)
+    assert_equal(i.itviews[0].shape, (24,))
+
+    # Removing the inner loop means there's just one iteration
+    i.reset()
+    assert_equal(i.itersize, 24)
+    assert_equal(i[0].shape, ())
+    i.enable_external_loop()
+    assert_equal(i.itersize, 24)
+    assert_equal(i[0].shape, (24,))
+    assert_equal(i.value, arange(24))
+
+def test_iter_iterindex():
+    # Make sure iterindex works
+
+    buffersize = 5
+    a = arange(24).reshape(4, 3, 2)
+    for flags in ([], ['buffered']):
+        i = nditer(a, flags, buffersize=buffersize)
+        assert_equal(iter_iterindices(i), list(range(24)))
+        i.iterindex = 2
+        assert_equal(iter_iterindices(i), list(range(2, 24)))
+
+        i = nditer(a, flags, order='F', buffersize=buffersize)
+        assert_equal(iter_iterindices(i), list(range(24)))
+        i.iterindex = 5
+        assert_equal(iter_iterindices(i), list(range(5, 24)))
+
+        i = nditer(a[::-1], flags, order='F', buffersize=buffersize)
+        assert_equal(iter_iterindices(i), list(range(24)))
+        i.iterindex = 9
+        assert_equal(iter_iterindices(i), list(range(9, 24)))
+
+        i = nditer(a[::-1, ::-1], flags, order='C', buffersize=buffersize)
+        assert_equal(iter_iterindices(i), list(range(24)))
+        i.iterindex = 13
+        assert_equal(iter_iterindices(i), list(range(13, 24)))
+
+        i = nditer(a[::1, ::-1], flags, buffersize=buffersize)
+        assert_equal(iter_iterindices(i), list(range(24)))
+        i.iterindex = 23
+        assert_equal(iter_iterindices(i), list(range(23, 24)))
+        i.reset()
+        i.iterindex = 2
+        assert_equal(iter_iterindices(i), list(range(2, 24)))
+
+def test_iter_iterrange():
+    # Make sure getting and resetting the iterrange works
+
+    buffersize = 5
+    a = arange(24, dtype='i4').reshape(4, 3, 2)
+    a_fort = a.ravel(order='F')
+
+    i = nditer(a, ['ranged'], ['readonly'], order='F',
+                buffersize=buffersize)
+    assert_equal(i.iterrange, (0, 24))
+    assert_equal([x[()] for x in i], a_fort)
+    for r in [(0, 24), (1, 2), (3, 24), (5, 5), (0, 20), (23, 24)]:
+        i.iterrange = r
+        assert_equal(i.iterrange, r)
+        assert_equal([x[()] for x in i], a_fort[r[0]:r[1]])
+
+    i = nditer(a, ['ranged', 'buffered'], ['readonly'], order='F',
+                op_dtypes='f8', buffersize=buffersize)
+    assert_equal(i.iterrange, (0, 24))
+    assert_equal([x[()] for x in i], a_fort)
+    for r in [(0, 24), (1, 2), (3, 24), (5, 5), (0, 20), (23, 24)]:
+        i.iterrange = r
+        assert_equal(i.iterrange, r)
+        assert_equal([x[()] for x in i], a_fort[r[0]:r[1]])
+
+    def get_array(i):
+        val = np.array([], dtype='f8')
+        for x in i:
+            val = np.concatenate((val, x))
+        return val
+
+    i = nditer(a, ['ranged', 'buffered', 'external_loop'],
+                ['readonly'], order='F',
+                op_dtypes='f8', buffersize=buffersize)
+    assert_equal(i.iterrange, (0, 24))
+    assert_equal(get_array(i), a_fort)
+    for r in [(0, 24), (1, 2), (3, 24), (5, 5), (0, 20), (23, 24)]:
+        i.iterrange = r
+        assert_equal(i.iterrange, r)
+        assert_equal(get_array(i), a_fort[r[0]:r[1]])
+
+def test_iter_buffering():
+    # Test buffering with several buffer sizes and types
+    arrays = []
+    # F-order swapped array
+    _tmp = np.arange(24, dtype='c16').reshape(2, 3, 4).T
+    _tmp = _tmp.view(_tmp.dtype.newbyteorder()).byteswap()
+    arrays.append(_tmp)
+    # Contiguous 1-dimensional array
+    arrays.append(np.arange(10, dtype='f4'))
+    # Unaligned array
+    a = np.zeros((4 * 16 + 1,), dtype='i1')[1:]
+    a = a.view('i4')
+    a[:] = np.arange(16, dtype='i4')
+    arrays.append(a)
+    # 4-D F-order array
+    arrays.append(np.arange(120, dtype='i4').reshape(5, 3, 2, 4).T)
+    for a in arrays:
+        for buffersize in (1, 2, 3, 5, 8, 11, 16, 1024):
+            vals = []
+            i = nditer(a, ['buffered', 'external_loop'],
+                           [['readonly', 'nbo', 'aligned']],
+                           order='C',
+                           casting='equiv',
+                           buffersize=buffersize)
+            while not i.finished:
+                assert_(i[0].size <= buffersize)
+                vals.append(i[0].copy())
+                i.iternext()
+            assert_equal(np.concatenate(vals), a.ravel(order='C'))
+
+def test_iter_write_buffering():
+    # Test that buffering of writes is working
+
+    # F-order swapped array
+    a = np.arange(24).reshape(2, 3, 4).T
+    a = a.view(a.dtype.newbyteorder()).byteswap()
+    i = nditer(a, ['buffered'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='equiv',
+                   order='C',
+                   buffersize=16)
+    x = 0
+    with i:
+        while not i.finished:
+            i[0] = x
+            x += 1
+            i.iternext()
+    assert_equal(a.ravel(order='C'), np.arange(24))
+
+def test_iter_buffering_delayed_alloc():
+    # Test that delaying buffer allocation works
+
+    a = np.arange(6)
+    b = np.arange(1, dtype='f4')
+    i = nditer([a, b], ['buffered', 'delay_bufalloc', 'multi_index', 'reduce_ok'],
+                    ['readwrite'],
+                    casting='unsafe',
+                    op_dtypes='f4')
+    assert_(i.has_delayed_bufalloc)
+    assert_raises(ValueError, lambda i: i.multi_index, i)
+    assert_raises(ValueError, lambda i: i[0], i)
+    assert_raises(ValueError, lambda i: i[0:2], i)
+
+    def assign_iter(i):
+        i[0] = 0
+    assert_raises(ValueError, assign_iter, i)
+
+    i.reset()
+    assert_(not i.has_delayed_bufalloc)
+    assert_equal(i.multi_index, (0,))
+    with i:
+        assert_equal(i[0], 0)
+        i[1] = 1
+        assert_equal(i[0:2], [0, 1])
+        assert_equal([[x[0][()], x[1][()]] for x in i], list(zip(range(6), [1] * 6)))
+
+def test_iter_buffered_cast_simple():
+    # Test that buffering can handle a simple cast
+
+    a = np.arange(10, dtype='f4')
+    i = nditer(a, ['buffered', 'external_loop'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='same_kind',
+                   op_dtypes=[np.dtype('f8')],
+                   buffersize=3)
+    with i:
+        for v in i:
+            v[...] *= 2
+
+    assert_equal(a, 2 * np.arange(10, dtype='f4'))
+
+def test_iter_buffered_cast_byteswapped():
+    # Test that buffering can handle a cast which requires swap->cast->swap
+
+    a = np.arange(10, dtype='f4')
+    a = a.view(a.dtype.newbyteorder()).byteswap()
+    i = nditer(a, ['buffered', 'external_loop'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='same_kind',
+                   op_dtypes=[np.dtype('f8').newbyteorder()],
+                   buffersize=3)
+    with i:
+        for v in i:
+            v[...] *= 2
+
+    assert_equal(a, 2 * np.arange(10, dtype='f4'))
+
+    with warnings.catch_warnings():
+        warnings.simplefilter('ignore', np.exceptions.ComplexWarning)
+
+        a = np.arange(10, dtype='f8')
+        a = a.view(a.dtype.newbyteorder()).byteswap()
+        i = nditer(a, ['buffered', 'external_loop'],
+                       [['readwrite', 'nbo', 'aligned']],
+                       casting='unsafe',
+                       op_dtypes=[np.dtype('c8').newbyteorder()],
+                       buffersize=3)
+        with i:
+            for v in i:
+                v[...] *= 2
+
+        assert_equal(a, 2 * np.arange(10, dtype='f8'))
+
+def test_iter_buffered_cast_byteswapped_complex():
+    # Test that buffering can handle a cast which requires swap->cast->copy
+
+    a = np.arange(10, dtype='c8')
+    a = a.view(a.dtype.newbyteorder()).byteswap()
+    a += 2j
+    i = nditer(a, ['buffered', 'external_loop'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='same_kind',
+                   op_dtypes=[np.dtype('c16')],
+                   buffersize=3)
+    with i:
+        for v in i:
+            v[...] *= 2
+    assert_equal(a, 2 * np.arange(10, dtype='c8') + 4j)
+
+    a = np.arange(10, dtype='c8')
+    a += 2j
+    i = nditer(a, ['buffered', 'external_loop'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='same_kind',
+                   op_dtypes=[np.dtype('c16').newbyteorder()],
+                   buffersize=3)
+    with i:
+        for v in i:
+            v[...] *= 2
+    assert_equal(a, 2 * np.arange(10, dtype='c8') + 4j)
+
+    a = np.arange(10, dtype=np.clongdouble)
+    a = a.view(a.dtype.newbyteorder()).byteswap()
+    a += 2j
+    i = nditer(a, ['buffered', 'external_loop'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='same_kind',
+                   op_dtypes=[np.dtype('c16')],
+                   buffersize=3)
+    with i:
+        for v in i:
+            v[...] *= 2
+    assert_equal(a, 2 * np.arange(10, dtype=np.clongdouble) + 4j)
+
+    a = np.arange(10, dtype=np.longdouble)
+    a = a.view(a.dtype.newbyteorder()).byteswap()
+    i = nditer(a, ['buffered', 'external_loop'],
+                   [['readwrite', 'nbo', 'aligned']],
+                   casting='same_kind',
+                   op_dtypes=[np.dtype('f4')],
+                   buffersize=7)
+    with i:
+        for v in i:
+            v[...] *= 2
+    assert_equal(a, 2 * np.arange(10, dtype=np.longdouble))
+
+def test_iter_buffered_cast_structured_type():
+    # Tests buffering of structured types
+
+    # simple -> struct type (duplicates the value)
+    sdt = [('a', 'f4'), ('b', 'i8'), ('c', 'c8', (2, 3)), ('d', 'O')]
+    a = np.arange(3, dtype='f4') + 0.5
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt)
+    vals = [np.array(x) for x in i]
+    assert_equal(vals[0]['a'], 0.5)
+    assert_equal(vals[0]['b'], 0)
+    assert_equal(vals[0]['c'], [[(0.5)] * 3] * 2)
+    assert_equal(vals[0]['d'], 0.5)
+    assert_equal(vals[1]['a'], 1.5)
+    assert_equal(vals[1]['b'], 1)
+    assert_equal(vals[1]['c'], [[(1.5)] * 3] * 2)
+    assert_equal(vals[1]['d'], 1.5)
+    assert_equal(vals[0].dtype, np.dtype(sdt))
+
+    # object -> struct type
+    sdt = [('a', 'f4'), ('b', 'i8'), ('c', 'c8', (2, 3)), ('d', 'O')]
+    a = np.zeros((3,), dtype='O')
+    a[0] = (0.5, 0.5, [[0.5, 0.5, 0.5], [0.5, 0.5, 0.5]], 0.5)
+    a[1] = (1.5, 1.5, [[1.5, 1.5, 1.5], [1.5, 1.5, 1.5]], 1.5)
+    a[2] = (2.5, 2.5, [[2.5, 2.5, 2.5], [2.5, 2.5, 2.5]], 2.5)
+    if HAS_REFCOUNT:
+        rc = sys.getrefcount(a[0])
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt)
+    vals = [x.copy() for x in i]
+    assert_equal(vals[0]['a'], 0.5)
+    assert_equal(vals[0]['b'], 0)
+    assert_equal(vals[0]['c'], [[(0.5)] * 3] * 2)
+    assert_equal(vals[0]['d'], 0.5)
+    assert_equal(vals[1]['a'], 1.5)
+    assert_equal(vals[1]['b'], 1)
+    assert_equal(vals[1]['c'], [[(1.5)] * 3] * 2)
+    assert_equal(vals[1]['d'], 1.5)
+    assert_equal(vals[0].dtype, np.dtype(sdt))
+    vals, i, x = [None] * 3
+    if HAS_REFCOUNT:
+        assert_equal(sys.getrefcount(a[0]), rc)
+
+    # single-field struct type -> simple
+    sdt = [('a', 'f4')]
+    a = np.array([(5.5,), (8,)], dtype=sdt)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes='i4')
+    assert_equal([x_[()] for x_ in i], [5, 8])
+
+    # make sure multi-field struct type -> simple doesn't work
+    sdt = [('a', 'f4'), ('b', 'i8'), ('d', 'O')]
+    a = np.array([(5.5, 7, 'test'), (8, 10, 11)], dtype=sdt)
+    assert_raises(TypeError, lambda: (
+        nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+               casting='unsafe',
+               op_dtypes='i4')))
+
+    # struct type -> struct type (field-wise copy)
+    sdt1 = [('a', 'f4'), ('b', 'i8'), ('d', 'O')]
+    sdt2 = [('d', 'u2'), ('a', 'O'), ('b', 'f8')]
+    a = np.array([(1, 2, 3), (4, 5, 6)], dtype=sdt1)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    assert_equal([np.array(x_) for x_ in i],
+                 [np.array((1, 2, 3), dtype=sdt2),
+                  np.array((4, 5, 6), dtype=sdt2)])
+
+
+def test_iter_buffered_cast_structured_type_failure_with_cleanup():
+    # make sure struct type -> struct type with different
+    # number of fields fails
+    sdt1 = [('a', 'f4'), ('b', 'i8'), ('d', 'O')]
+    sdt2 = [('b', 'O'), ('a', 'f8')]
+    a = np.array([(1, 2, 3), (4, 5, 6)], dtype=sdt1)
+
+    for intent in ["readwrite", "readonly", "writeonly"]:
+        # This test was initially designed to test an error at a different
+        # place, but will now raise earlier to to the cast not being possible:
+        # `assert np.can_cast(a.dtype, sdt2, casting="unsafe")` fails.
+        # Without a faulty DType, there is probably no reliable
+        # way to get the initial tested behaviour.
+        simple_arr = np.array([1, 2], dtype="i,i")  # requires clean up
+        with pytest.raises(TypeError):
+            nditer((simple_arr, a), ['buffered', 'refs_ok'], [intent, intent],
+                   casting='unsafe', op_dtypes=["f,f", sdt2])
+
+
+def test_buffered_cast_error_paths():
+    with pytest.raises(ValueError):
+        # The input is cast into an `S3` buffer
+        np.nditer((np.array("a", dtype="S1"),), op_dtypes=["i"],
+                  casting="unsafe", flags=["buffered"])
+
+    # The `M8[ns]` is cast into the `S3` output
+    it = np.nditer((np.array(1, dtype="i"),), op_dtypes=["S1"],
+                   op_flags=["writeonly"], casting="unsafe", flags=["buffered"])
+    with pytest.raises(ValueError):
+        with it:
+            buf = next(it)
+            buf[...] = "a"  # cannot be converted to int.
+
+@pytest.mark.skipif(IS_WASM, reason="Cannot start subprocess")
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="PyPy seems to not hit this.")
+def test_buffered_cast_error_paths_unraisable():
+    # The following gives an unraisable error. Pytest sometimes captures that
+    # (depending python and/or pytest version). So with Python>=3.8 this can
+    # probably be cleaned out in the future to check for
+    # pytest.PytestUnraisableExceptionWarning:
+    code = textwrap.dedent("""
+        import numpy as np
+
+        it = np.nditer((np.array(1, dtype="i"),), op_dtypes=["S1"],
+                       op_flags=["writeonly"], casting="unsafe", flags=["buffered"])
+        buf = next(it)
+        buf[...] = "a"
+        del buf, it  # Flushing only happens during deallocate right now.
+        """)
+    res = subprocess.check_output([sys.executable, "-c", code],
+                                  stderr=subprocess.STDOUT, text=True)
+    assert "ValueError" in res
+
+
+def test_iter_buffered_cast_subarray():
+    # Tests buffering of subarrays
+
+    # one element -> many (copies it to all)
+    sdt1 = [('a', 'f4')]
+    sdt2 = [('a', 'f8', (3, 2, 2))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    for x, count in zip(i, list(range(6))):
+        assert_(np.all(x['a'] == count))
+
+    # one element -> many -> back (copies it to all)
+    sdt1 = [('a', 'O', (1, 1))]
+    sdt2 = [('a', 'O', (3, 2, 2))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'][:, 0, 0] = np.arange(6)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readwrite'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    with i:
+        assert_equal(i[0].dtype, np.dtype(sdt2))
+        count = 0
+        for x in i:
+            assert_(np.all(x['a'] == count))
+            x['a'][0] += 2
+            count += 1
+    assert_equal(a['a'], np.arange(6).reshape(6, 1, 1) + 2)
+
+    # many -> one element -> back (copies just element 0)
+    sdt1 = [('a', 'O', (3, 2, 2))]
+    sdt2 = [('a', 'O', (1,))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'][:, 0, 0, 0] = np.arange(6)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readwrite'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    with i:
+        assert_equal(i[0].dtype, np.dtype(sdt2))
+        count = 0
+        for x in i:
+            assert_equal(x['a'], count)
+            x['a'] += 2
+            count += 1
+    assert_equal(a['a'], np.arange(6).reshape(6, 1, 1, 1) * np.ones((1, 3, 2, 2)) + 2)
+
+    # many -> one element -> back (copies just element 0)
+    sdt1 = [('a', 'f8', (3, 2, 2))]
+    sdt2 = [('a', 'O', (1,))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'][:, 0, 0, 0] = np.arange(6)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'], count)
+        count += 1
+
+    # many -> one element (copies just element 0)
+    sdt1 = [('a', 'O', (3, 2, 2))]
+    sdt2 = [('a', 'f4', (1,))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'][:, 0, 0, 0] = np.arange(6)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'], count)
+        count += 1
+
+    # many -> matching shape (straightforward copy)
+    sdt1 = [('a', 'O', (3, 2, 2))]
+    sdt2 = [('a', 'f4', (3, 2, 2))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6 * 3 * 2 * 2).reshape(6, 3, 2, 2)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'], a[count]['a'])
+        count += 1
+
+    # vector -> smaller vector (truncates)
+    sdt1 = [('a', 'f8', (6,))]
+    sdt2 = [('a', 'f4', (2,))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6 * 6).reshape(6, 6)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'], a[count]['a'][:2])
+        count += 1
+
+    # vector -> bigger vector (pads with zeros)
+    sdt1 = [('a', 'f8', (2,))]
+    sdt2 = [('a', 'f4', (6,))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6 * 2).reshape(6, 2)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'][:2], a[count]['a'])
+        assert_equal(x['a'][2:], [0, 0, 0, 0])
+        count += 1
+
+    # vector -> matrix (broadcasts)
+    sdt1 = [('a', 'f8', (2,))]
+    sdt2 = [('a', 'f4', (2, 2))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6 * 2).reshape(6, 2)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'][0], a[count]['a'])
+        assert_equal(x['a'][1], a[count]['a'])
+        count += 1
+
+    # vector -> matrix (broadcasts and zero-pads)
+    sdt1 = [('a', 'f8', (2, 1))]
+    sdt2 = [('a', 'f4', (3, 2))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6 * 2).reshape(6, 2, 1)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'][:2, 0], a[count]['a'][:, 0])
+        assert_equal(x['a'][:2, 1], a[count]['a'][:, 0])
+        assert_equal(x['a'][2, :], [0, 0])
+        count += 1
+
+    # matrix -> matrix (truncates and zero-pads)
+    sdt1 = [('a', 'f8', (2, 3))]
+    sdt2 = [('a', 'f4', (3, 2))]
+    a = np.zeros((6,), dtype=sdt1)
+    a['a'] = np.arange(6 * 2 * 3).reshape(6, 2, 3)
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe',
+                    op_dtypes=sdt2)
+    assert_equal(i[0].dtype, np.dtype(sdt2))
+    count = 0
+    for x in i:
+        assert_equal(x['a'][:2, 0], a[count]['a'][:, 0])
+        assert_equal(x['a'][:2, 1], a[count]['a'][:, 1])
+        assert_equal(x['a'][2, :], [0, 0])
+        count += 1
+
+def test_iter_buffering_badwriteback():
+    # Writing back from a buffer cannot combine elements
+
+    # a needs write buffering, but had a broadcast dimension
+    a = np.arange(6).reshape(2, 3, 1)
+    b = np.arange(12).reshape(2, 3, 2)
+    assert_raises(ValueError, nditer, [a, b],
+                  ['buffered', 'external_loop'],
+                  [['readwrite'], ['writeonly']],
+                  order='C')
+
+    # But if a is readonly, it's fine
+    nditer([a, b], ['buffered', 'external_loop'],
+           [['readonly'], ['writeonly']],
+           order='C')
+
+    # If a has just one element, it's fine too (constant 0 stride, a reduction)
+    a = np.arange(1).reshape(1, 1, 1)
+    nditer([a, b], ['buffered', 'external_loop', 'reduce_ok'],
+           [['readwrite'], ['writeonly']],
+           order='C')
+
+    # check that it fails on other dimensions too
+    a = np.arange(6).reshape(1, 3, 2)
+    assert_raises(ValueError, nditer, [a, b],
+                  ['buffered', 'external_loop'],
+                  [['readwrite'], ['writeonly']],
+                  order='C')
+    a = np.arange(4).reshape(2, 1, 2)
+    assert_raises(ValueError, nditer, [a, b],
+                  ['buffered', 'external_loop'],
+                  [['readwrite'], ['writeonly']],
+                  order='C')
+
+def test_iter_buffering_string():
+    # Safe casting disallows shrinking strings
+    a = np.array(['abc', 'a', 'abcd'], dtype=np.bytes_)
+    assert_equal(a.dtype, np.dtype('S4'))
+    assert_raises(TypeError, nditer, a, ['buffered'], ['readonly'],
+                  op_dtypes='S2')
+    i = nditer(a, ['buffered'], ['readonly'], op_dtypes='S6')
+    assert_equal(i[0], b'abc')
+    assert_equal(i[0].dtype, np.dtype('S6'))
+
+    a = np.array(['abc', 'a', 'abcd'], dtype=np.str_)
+    assert_equal(a.dtype, np.dtype('U4'))
+    assert_raises(TypeError, nditer, a, ['buffered'], ['readonly'],
+                    op_dtypes='U2')
+    i = nditer(a, ['buffered'], ['readonly'], op_dtypes='U6')
+    assert_equal(i[0], 'abc')
+    assert_equal(i[0].dtype, np.dtype('U6'))
+
+def test_iter_buffering_growinner():
+    # Test that the inner loop grows when no buffering is needed
+    a = np.arange(30)
+    i = nditer(a, ['buffered', 'growinner', 'external_loop'],
+                           buffersize=5)
+    # Should end up with just one inner loop here
+    assert_equal(i[0].size, a.size)
+
+
+@pytest.mark.parametrize("read_or_readwrite", ["readonly", "readwrite"])
+def test_iter_contig_flag_reduce_error(read_or_readwrite):
+    # Test that a non-contiguous operand is rejected without buffering.
+    # NOTE: This is true even for a reduction, where we return a 0-stride
+    #       below!
+    with pytest.raises(TypeError, match="Iterator operand required buffering"):
+        it = np.nditer(
+            (np.zeros(()),), flags=["external_loop", "reduce_ok"],
+            op_flags=[(read_or_readwrite, "contig"),], itershape=(10,))
+
+
+@pytest.mark.parametrize("arr", [
+        lambda: np.zeros(()),
+        lambda: np.zeros((20, 1))[::20],
+        lambda: np.zeros((1, 20))[:, ::20]
+    ])
+def test_iter_contig_flag_single_operand_strides(arr):
+    """
+    Tests the strides with the contig flag for both broadcast and non-broadcast
+    operands in 3 cases where the logic is needed:
+    1. When everything has a zero stride, the broadcast op needs to repeated
+    2. When the reduce axis is the last axis (first to iterate).
+    3. When the reduce axis is the first axis (last to iterate).
+
+    NOTE: The semantics of the cast flag are not clearly defined when
+          it comes to reduction.  It is unclear that there are any users.
+    """
+    first_op = np.ones((10, 10))
+    broadcast_op = arr()
+    red_op = arr()
+    # Add a first operand to ensure no axis-reordering and the result shape.
+    iterator = np.nditer(
+        (first_op, broadcast_op, red_op),
+        flags=["external_loop", "reduce_ok", "buffered", "delay_bufalloc"],
+        op_flags=[("readonly", "contig")] * 2 + [("readwrite", "contig")])
+
+    with iterator:
+        iterator.reset()
+        for f, b, r in iterator:
+            # The first operand is contigouos, we should have a view
+            assert np.shares_memory(f, first_op)
+            # Although broadcast, the second op always has a contiguous stride
+            assert b.strides[0] == 8
+            assert not np.shares_memory(b, broadcast_op)
+            # The reduction has a contiguous stride or a 0 stride
+            if red_op.ndim == 0 or red_op.shape[-1] == 1:
+                assert r.strides[0] == 0
+            else:
+                # The stride is 8, although it was not originally:
+                assert r.strides[0] == 8
+            # If the reduce stride is 0, buffering makes no difference, but we
+            # do it anyway right now:
+            assert not np.shares_memory(r, red_op)
+
+
+@pytest.mark.xfail(reason="The contig flag was always buggy.")
+def test_iter_contig_flag_incorrect():
+    # This case does the wrong thing...
+    iterator = np.nditer(
+        (np.ones((10, 10)).T, np.ones((1, 10))),
+        flags=["external_loop", "reduce_ok", "buffered", "delay_bufalloc"],
+        op_flags=[("readonly", "contig")] * 2)
+
+    with iterator:
+        iterator.reset()
+        for a, b in iterator:
+            # Remove a and b from locals (pytest may want to format them)
+            a, b = a.strides, b.strides
+            assert a == 8
+            assert b == 8  # should be 8 but is 0 due to axis reorder
+
+
+@pytest.mark.slow
+def test_iter_buffered_reduce_reuse():
+    # large enough array for all views, including negative strides.
+    a = np.arange(2 * 3**5)[3**5:3**5 + 1]
+    flags = ['buffered', 'delay_bufalloc', 'multi_index', 'reduce_ok', 'refs_ok']
+    op_flags = [('readonly',), ('readwrite', 'allocate')]
+    op_axes_list = [[(0, 1, 2), (0, 1, -1)], [(0, 1, 2), (0, -1, -1)]]
+    # wrong dtype to force buffering
+    op_dtypes = [float, a.dtype]
+
+    def get_params():
+        for xs in range(-3**2, 3**2 + 1):
+            for ys in range(xs, 3**2 + 1):
+                for op_axes in op_axes_list:
+                    # last stride is reduced and because of that not
+                    # important for this test, as it is the inner stride.
+                    strides = (xs * a.itemsize, ys * a.itemsize, a.itemsize)
+                    arr = np.lib.stride_tricks.as_strided(a, (3, 3, 3), strides)
+
+                    for skip in [0, 1]:
+                        yield arr, op_axes, skip
+
+    for arr, op_axes, skip in get_params():
+        nditer2 = np.nditer([arr.copy(), None],
+                            op_axes=op_axes, flags=flags, op_flags=op_flags,
+                            op_dtypes=op_dtypes)
+        with nditer2:
+            nditer2.operands[-1][...] = 0
+            nditer2.reset()
+            nditer2.iterindex = skip
+
+            for (a2_in, b2_in) in nditer2:
+                b2_in += a2_in.astype(np.int_)
+
+            comp_res = nditer2.operands[-1]
+
+        for bufsize in range(3**3):
+            nditer1 = np.nditer([arr, None],
+                                op_axes=op_axes, flags=flags, op_flags=op_flags,
+                                buffersize=bufsize, op_dtypes=op_dtypes)
+            with nditer1:
+                nditer1.operands[-1][...] = 0
+                nditer1.reset()
+                nditer1.iterindex = skip
+
+                for (a1_in, b1_in) in nditer1:
+                    b1_in += a1_in.astype(np.int_)
+
+                res = nditer1.operands[-1]
+            assert_array_equal(res, comp_res)
+
+
+def test_iter_buffered_reduce_reuse_core():
+    # NumPy re-uses buffers for broadcast operands (as of writing when reading).
+    # Test this even if the offset is manually set at some point during
+    # the iteration.  (not a particularly tricky path)
+    arr = np.empty((1, 6, 4, 1)).reshape(1, 6, 4, 1)[:, ::3, ::2, :]
+    arr[...] = np.arange(arr.size).reshape(arr.shape)
+    # First and last dimension are broadcast dimensions.
+    arr = np.broadcast_to(arr, (100, 2, 2, 2))
+
+    flags = ['buffered', 'reduce_ok', 'refs_ok', 'multi_index']
+    op_flags = [('readonly',)]
+
+    buffersize = 100  # small enough to not fit the whole array
+    it = np.nditer(arr, flags=flags, op_flags=op_flags, buffersize=100)
+
+    # Iterate a bit (this will cause buffering internally)
+    expected = [next(it) for i in range(11)]
+    # Now, manually advance to inside the core (the +1)
+    it.iterindex = 10 * (2 * 2 * 2) + 1
+    result = [next(it) for i in range(10)]
+
+    assert expected[1:] == result
+
+
+def test_iter_no_broadcast():
+    # Test that the no_broadcast flag works
+    a = np.arange(24).reshape(2, 3, 4)
+    b = np.arange(6).reshape(2, 3, 1)
+    c = np.arange(12).reshape(3, 4)
+
+    nditer([a, b, c], [],
+           [['readonly', 'no_broadcast'],
+            ['readonly'], ['readonly']])
+    assert_raises(ValueError, nditer, [a, b, c], [],
+                  [['readonly'], ['readonly', 'no_broadcast'], ['readonly']])
+    assert_raises(ValueError, nditer, [a, b, c], [],
+                  [['readonly'], ['readonly'], ['readonly', 'no_broadcast']])
+
+
+class TestIterNested:
+
+    def test_basic(self):
+        # Test nested iteration basic usage
+        a = arange(12).reshape(2, 3, 2)
+
+        i, j = np.nested_iters(a, [[0], [1, 2]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]])
+
+        i, j = np.nested_iters(a, [[0, 1], [2]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9], [10, 11]])
+
+        i, j = np.nested_iters(a, [[0, 2], [1]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]])
+
+    def test_reorder(self):
+        # Test nested iteration basic usage
+        a = arange(12).reshape(2, 3, 2)
+
+        # In 'K' order (default), it gets reordered
+        i, j = np.nested_iters(a, [[0], [2, 1]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]])
+
+        i, j = np.nested_iters(a, [[1, 0], [2]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9], [10, 11]])
+
+        i, j = np.nested_iters(a, [[2, 0], [1]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]])
+
+        # In 'C' order, it doesn't
+        i, j = np.nested_iters(a, [[0], [2, 1]], order='C')
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 2, 4, 1, 3, 5], [6, 8, 10, 7, 9, 11]])
+
+        i, j = np.nested_iters(a, [[1, 0], [2]], order='C')
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1], [6, 7], [2, 3], [8, 9], [4, 5], [10, 11]])
+
+        i, j = np.nested_iters(a, [[2, 0], [1]], order='C')
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 2, 4], [6, 8, 10], [1, 3, 5], [7, 9, 11]])
+
+    def test_flip_axes(self):
+        # Test nested iteration with negative axes
+        a = arange(12).reshape(2, 3, 2)[::-1, ::-1, ::-1]
+
+        # In 'K' order (default), the axes all get flipped
+        i, j = np.nested_iters(a, [[0], [1, 2]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]])
+
+        i, j = np.nested_iters(a, [[0, 1], [2]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9], [10, 11]])
+
+        i, j = np.nested_iters(a, [[0, 2], [1]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]])
+
+        # In 'C' order, flipping axes is disabled
+        i, j = np.nested_iters(a, [[0], [1, 2]], order='C')
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[11, 10, 9, 8, 7, 6], [5, 4, 3, 2, 1, 0]])
+
+        i, j = np.nested_iters(a, [[0, 1], [2]], order='C')
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[11, 10], [9, 8], [7, 6], [5, 4], [3, 2], [1, 0]])
+
+        i, j = np.nested_iters(a, [[0, 2], [1]], order='C')
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[11, 9, 7], [10, 8, 6], [5, 3, 1], [4, 2, 0]])
+
+    def test_broadcast(self):
+        # Test nested iteration with broadcasting
+        a = arange(2).reshape(2, 1)
+        b = arange(3).reshape(1, 3)
+
+        i, j = np.nested_iters([a, b], [[0], [1]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[[0, 0], [0, 1], [0, 2]], [[1, 0], [1, 1], [1, 2]]])
+
+        i, j = np.nested_iters([a, b], [[1], [0]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[[0, 0], [1, 0]], [[0, 1], [1, 1]], [[0, 2], [1, 2]]])
+
+    def test_dtype_copy(self):
+        # Test nested iteration with a copy to change dtype
+
+        # copy
+        a = arange(6, dtype='i4').reshape(2, 3)
+        i, j = np.nested_iters(a, [[0], [1]],
+                            op_flags=['readonly', 'copy'],
+                            op_dtypes='f8')
+        assert_equal(j[0].dtype, np.dtype('f8'))
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1, 2], [3, 4, 5]])
+        vals = None
+
+        # writebackifcopy - using context manager
+        a = arange(6, dtype='f4').reshape(2, 3)
+        i, j = np.nested_iters(a, [[0], [1]],
+                            op_flags=['readwrite', 'updateifcopy'],
+                            casting='same_kind',
+                            op_dtypes='f8')
+        with i, j:
+            assert_equal(j[0].dtype, np.dtype('f8'))
+            for x in i:
+                for y in j:
+                    y[...] += 1
+            assert_equal(a, [[0, 1, 2], [3, 4, 5]])
+        assert_equal(a, [[1, 2, 3], [4, 5, 6]])
+
+        # writebackifcopy - using close()
+        a = arange(6, dtype='f4').reshape(2, 3)
+        i, j = np.nested_iters(a, [[0], [1]],
+                            op_flags=['readwrite', 'updateifcopy'],
+                            casting='same_kind',
+                            op_dtypes='f8')
+        assert_equal(j[0].dtype, np.dtype('f8'))
+        for x in i:
+            for y in j:
+                y[...] += 1
+        assert_equal(a, [[0, 1, 2], [3, 4, 5]])
+        i.close()
+        j.close()
+        assert_equal(a, [[1, 2, 3], [4, 5, 6]])
+
+    def test_dtype_buffered(self):
+        # Test nested iteration with buffering to change dtype
+
+        a = arange(6, dtype='f4').reshape(2, 3)
+        i, j = np.nested_iters(a, [[0], [1]],
+                            flags=['buffered'],
+                            op_flags=['readwrite'],
+                            casting='same_kind',
+                            op_dtypes='f8')
+        assert_equal(j[0].dtype, np.dtype('f8'))
+        for x in i:
+            for y in j:
+                y[...] += 1
+        assert_equal(a, [[1, 2, 3], [4, 5, 6]])
+
+    def test_0d(self):
+        a = np.arange(12).reshape(2, 3, 2)
+        i, j = np.nested_iters(a, [[], [1, 0, 2]])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]])
+
+        i, j = np.nested_iters(a, [[1, 0, 2], []])
+        vals = [list(j) for _ in i]
+        assert_equal(vals, [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11]])
+
+        i, j, k = np.nested_iters(a, [[2, 0], [], [1]])
+        vals = []
+        for x in i:
+            for y in j:
+                vals.append(list(k))
+        assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]])
+
+    def test_iter_nested_iters_dtype_buffered(self):
+        # Test nested iteration with buffering to change dtype
+
+        a = arange(6, dtype='f4').reshape(2, 3)
+        i, j = np.nested_iters(a, [[0], [1]],
+                            flags=['buffered'],
+                            op_flags=['readwrite'],
+                            casting='same_kind',
+                            op_dtypes='f8')
+        with i, j:
+            assert_equal(j[0].dtype, np.dtype('f8'))
+            for x in i:
+                for y in j:
+                    y[...] += 1
+        assert_equal(a, [[1, 2, 3], [4, 5, 6]])
+
+def test_iter_reduction_error():
+
+    a = np.arange(6)
+    assert_raises(ValueError, nditer, [a, None], [],
+                    [['readonly'], ['readwrite', 'allocate']],
+                    op_axes=[[0], [-1]])
+
+    a = np.arange(6).reshape(2, 3)
+    assert_raises(ValueError, nditer, [a, None], ['external_loop'],
+                    [['readonly'], ['readwrite', 'allocate']],
+                    op_axes=[[0, 1], [-1, -1]])
+
+def test_iter_reduction():
+    # Test doing reductions with the iterator
+
+    a = np.arange(6)
+    i = nditer([a, None], ['reduce_ok'],
+                    [['readonly'], ['readwrite', 'allocate']],
+                    op_axes=[[0], [-1]])
+    # Need to initialize the output operand to the addition unit
+    with i:
+        i.operands[1][...] = 0
+        # Do the reduction
+        for x, y in i:
+            y[...] += x
+        # Since no axes were specified, should have allocated a scalar
+        assert_equal(i.operands[1].ndim, 0)
+        assert_equal(i.operands[1], np.sum(a))
+
+    a = np.arange(6).reshape(2, 3)
+    i = nditer([a, None], ['reduce_ok', 'external_loop'],
+                    [['readonly'], ['readwrite', 'allocate']],
+                    op_axes=[[0, 1], [-1, -1]])
+    # Need to initialize the output operand to the addition unit
+    with i:
+        i.operands[1][...] = 0
+        # Reduction shape/strides for the output
+        assert_equal(i[1].shape, (6,))
+        assert_equal(i[1].strides, (0,))
+        # Do the reduction
+        for x, y in i:
+            # Use a for loop instead of ``y[...] += x``
+            # (equivalent to ``y[...] = y[...].copy() + x``),
+            # because y has zero strides we use for the reduction
+            for j in range(len(y)):
+                y[j] += x[j]
+        # Since no axes were specified, should have allocated a scalar
+        assert_equal(i.operands[1].ndim, 0)
+        assert_equal(i.operands[1], np.sum(a))
+
+    # This is a tricky reduction case for the buffering double loop
+    # to handle
+    a = np.ones((2, 3, 5))
+    it1 = nditer([a, None], ['reduce_ok', 'external_loop'],
+                    [['readonly'], ['readwrite', 'allocate']],
+                    op_axes=[None, [0, -1, 1]])
+    it2 = nditer([a, None], ['reduce_ok', 'external_loop',
+                            'buffered', 'delay_bufalloc'],
+                    [['readonly'], ['readwrite', 'allocate']],
+                    op_axes=[None, [0, -1, 1]], buffersize=10)
+    with it1, it2:
+        it1.operands[1].fill(0)
+        it2.operands[1].fill(0)
+        it2.reset()
+        for x in it1:
+            x[1][...] += x[0]
+        for x in it2:
+            x[1][...] += x[0]
+        assert_equal(it1.operands[1], it2.operands[1])
+        assert_equal(it2.operands[1].sum(), a.size)
+
+def test_iter_buffering_reduction():
+    # Test doing buffered reductions with the iterator
+
+    a = np.arange(6)
+    b = np.array(0., dtype='f8').byteswap()
+    b = b.view(b.dtype.newbyteorder())
+    i = nditer([a, b], ['reduce_ok', 'buffered'],
+                    [['readonly'], ['readwrite', 'nbo']],
+                    op_axes=[[0], [-1]])
+    with i:
+        assert_equal(i[1].dtype, np.dtype('f8'))
+        assert_(i[1].dtype != b.dtype)
+        # Do the reduction
+        for x, y in i:
+            y[...] += x
+    # Since no axes were specified, should have allocated a scalar
+    assert_equal(b, np.sum(a))
+
+    a = np.arange(6).reshape(2, 3)
+    b = np.array([0, 0], dtype='f8').byteswap()
+    b = b.view(b.dtype.newbyteorder())
+    i = nditer([a, b], ['reduce_ok', 'external_loop', 'buffered'],
+                    [['readonly'], ['readwrite', 'nbo']],
+                    op_axes=[[0, 1], [0, -1]])
+    # Reduction shape/strides for the output
+    with i:
+        assert_equal(i[1].shape, (3,))
+        assert_equal(i[1].strides, (0,))
+        # Do the reduction
+        for x, y in i:
+            # Use a for loop instead of ``y[...] += x``
+            # (equivalent to ``y[...] = y[...].copy() + x``),
+            # because y has zero strides we use for the reduction
+            for j in range(len(y)):
+                y[j] += x[j]
+    assert_equal(b, np.sum(a, axis=1))
+
+    # Iterator inner double loop was wrong on this one
+    p = np.arange(2) + 1
+    it = np.nditer([p, None],
+            ['delay_bufalloc', 'reduce_ok', 'buffered', 'external_loop'],
+            [['readonly'], ['readwrite', 'allocate']],
+            op_axes=[[-1, 0], [-1, -1]],
+            itershape=(2, 2))
+    with it:
+        it.operands[1].fill(0)
+        it.reset()
+        assert_equal(it[0], [1, 2, 1, 2])
+
+    # Iterator inner loop should take argument contiguity into account
+    x = np.ones((7, 13, 8), np.int8)[4:6, 1:11:6, 1:5].transpose(1, 2, 0)
+    x[...] = np.arange(x.size).reshape(x.shape)
+    y_base = np.arange(4 * 4, dtype=np.int8).reshape(4, 4)
+    y_base_copy = y_base.copy()
+    y = y_base[::2, :, None]
+
+    it = np.nditer([y, x],
+                   ['buffered', 'external_loop', 'reduce_ok'],
+                   [['readwrite'], ['readonly']])
+    with it:
+        for a, b in it:
+            a.fill(2)
+
+    assert_equal(y_base[1::2], y_base_copy[1::2])
+    assert_equal(y_base[::2], 2)
+
+def test_iter_buffering_reduction_reuse_reduce_loops():
+    # There was a bug triggering reuse of the reduce loop inappropriately,
+    # which caused processing to happen in unnecessarily small chunks
+    # and overran the buffer.
+
+    a = np.zeros((2, 7))
+    b = np.zeros((1, 7))
+    it = np.nditer([a, b], flags=['reduce_ok', 'external_loop', 'buffered'],
+                    op_flags=[['readonly'], ['readwrite']],
+                    buffersize=5)
+
+    with it:
+        bufsizes = [x.shape[0] for x, y in it]
+    assert_equal(bufsizes, [5, 2, 5, 2])
+    assert_equal(sum(bufsizes), a.size)
+
+def test_iter_writemasked_badinput():
+    a = np.zeros((2, 3))
+    b = np.zeros((3,))
+    m = np.array([[True, True, False], [False, True, False]])
+    m2 = np.array([True, True, False])
+    m3 = np.array([0, 1, 1], dtype='u1')
+    mbad1 = np.array([0, 1, 1], dtype='i1')
+    mbad2 = np.array([0, 1, 1], dtype='f4')
+
+    # Need an 'arraymask' if any operand is 'writemasked'
+    assert_raises(ValueError, nditer, [a, m], [],
+                    [['readwrite', 'writemasked'], ['readonly']])
+
+    # A 'writemasked' operand must not be readonly
+    assert_raises(ValueError, nditer, [a, m], [],
+                    [['readonly', 'writemasked'], ['readonly', 'arraymask']])
+
+    # 'writemasked' and 'arraymask' may not be used together
+    assert_raises(ValueError, nditer, [a, m], [],
+                    [['readonly'], ['readwrite', 'arraymask', 'writemasked']])
+
+    # 'arraymask' may only be specified once
+    assert_raises(ValueError, nditer, [a, m, m2], [],
+                    [['readwrite', 'writemasked'],
+                     ['readonly', 'arraymask'],
+                     ['readonly', 'arraymask']])
+
+    # An 'arraymask' with nothing 'writemasked' also doesn't make sense
+    assert_raises(ValueError, nditer, [a, m], [],
+                    [['readwrite'], ['readonly', 'arraymask']])
+
+    # A writemasked reduction requires a similarly smaller mask
+    assert_raises(ValueError, nditer, [a, b, m], ['reduce_ok'],
+                    [['readonly'],
+                     ['readwrite', 'writemasked'],
+                     ['readonly', 'arraymask']])
+    # But this should work with a smaller/equal mask to the reduction operand
+    np.nditer([a, b, m2], ['reduce_ok'],
+                    [['readonly'],
+                     ['readwrite', 'writemasked'],
+                     ['readonly', 'arraymask']])
+    # The arraymask itself cannot be a reduction
+    assert_raises(ValueError, nditer, [a, b, m2], ['reduce_ok'],
+                    [['readonly'],
+                     ['readwrite', 'writemasked'],
+                     ['readwrite', 'arraymask']])
+
+    # A uint8 mask is ok too
+    np.nditer([a, m3], ['buffered'],
+                    [['readwrite', 'writemasked'],
+                     ['readonly', 'arraymask']],
+                    op_dtypes=['f4', None],
+                    casting='same_kind')
+    # An int8 mask isn't ok
+    assert_raises(TypeError, np.nditer, [a, mbad1], ['buffered'],
+                    [['readwrite', 'writemasked'],
+                     ['readonly', 'arraymask']],
+                    op_dtypes=['f4', None],
+                    casting='same_kind')
+    # A float32 mask isn't ok
+    assert_raises(TypeError, np.nditer, [a, mbad2], ['buffered'],
+                    [['readwrite', 'writemasked'],
+                     ['readonly', 'arraymask']],
+                    op_dtypes=['f4', None],
+                    casting='same_kind')
+
+
+def _is_buffered(iterator):
+    try:
+        iterator.itviews
+    except ValueError:
+        return True
+    return False
+
+@pytest.mark.parametrize("arrs",
+        [np.zeros((3,), dtype='f8'),
+         np.zeros((9876, 3 * 5), dtype='f8')[::2, :],
+         np.zeros((4, 312, 124, 3), dtype='f8')[::2, :, ::2, :],
+         # Also test with the last dimension strided (so it does not fit if
+         # there is repeated access)
+         np.zeros((9,), dtype='f8')[::3],
+         np.zeros((9876, 3 * 10), dtype='f8')[::2, ::5],
+         np.zeros((4, 312, 124, 3), dtype='f8')[::2, :, ::2, ::-1]])
+def test_iter_writemasked(arrs):
+    # Note, the slicing above is to ensure that nditer cannot combine multiple
+    # axes into one.  The repetition is just to make things a bit more
+    # interesting.
+    a = arrs.copy()
+    shape = a.shape
+    reps = shape[-1] // 3
+    msk = np.empty(shape, dtype=bool)
+    msk[...] = [True, True, False] * reps
+
+    # When buffering is unused, 'writemasked' effectively does nothing.
+    # It's up to the user of the iterator to obey the requested semantics.
+    it = np.nditer([a, msk], [],
+                [['readwrite', 'writemasked'],
+                 ['readonly', 'arraymask']])
+    with it:
+        for x, m in it:
+            x[...] = 1
+    # Because we violated the semantics, all the values became 1
+    assert_equal(a, np.broadcast_to([1, 1, 1] * reps, shape))
+
+    # Even if buffering is enabled, we still may be accessing the array
+    # directly.
+    it = np.nditer([a, msk], ['buffered'],
+                [['readwrite', 'writemasked'],
+                 ['readonly', 'arraymask']])
+    # @seberg: I honestly don't currently understand why a "buffered" iterator
+    # would end up not using a buffer for the small array here at least when
+    # "writemasked" is used, that seems confusing...  Check by testing for
+    # actual memory overlap!
+    is_buffered = True
+    with it:
+        for x, m in it:
+            x[...] = 2.5
+            if np.may_share_memory(x, a):
+                is_buffered = False
+
+    if not is_buffered:
+        # Because we violated the semantics, all the values became 2.5
+        assert_equal(a, np.broadcast_to([2.5, 2.5, 2.5] * reps, shape))
+    else:
+        # For large sizes, the iterator may be buffered:
+        assert_equal(a, np.broadcast_to([2.5, 2.5, 1] * reps, shape))
+        a[...] = 2.5
+
+    # If buffering will definitely happening, for instance because of
+    # a cast, only the items selected by the mask will be copied back from
+    # the buffer.
+    it = np.nditer([a, msk], ['buffered'],
+                [['readwrite', 'writemasked'],
+                 ['readonly', 'arraymask']],
+                op_dtypes=['i8', None],
+                casting='unsafe')
+    with it:
+        for x, m in it:
+            x[...] = 3
+    # Even though we violated the semantics, only the selected values
+    # were copied back
+    assert_equal(a, np.broadcast_to([3, 3, 2.5] * reps, shape))
+
+
+@pytest.mark.parametrize(["mask", "mask_axes"], [
+        # Allocated operand (only broadcasts with -1)
+        (None, [-1, 0]),
+        # Reduction along the first dimension (with and without op_axes)
+        (np.zeros((1, 4), dtype="bool"), [0, 1]),
+        (np.zeros((1, 4), dtype="bool"), None),
+        # Test 0-D and -1 op_axes
+        (np.zeros(4, dtype="bool"), [-1, 0]),
+        (np.zeros((), dtype="bool"), [-1, -1]),
+        (np.zeros((), dtype="bool"), None)])
+def test_iter_writemasked_broadcast_error(mask, mask_axes):
+    # This assumes that a readwrite mask makes sense. This is likely not the
+    # case and should simply be deprecated.
+    arr = np.zeros((3, 4))
+    itflags = ["reduce_ok"]
+    mask_flags = ["arraymask", "readwrite", "allocate"]
+    a_flags = ["writeonly", "writemasked"]
+    if mask_axes is None:
+        op_axes = None
+    else:
+        op_axes = [mask_axes, [0, 1]]
+
+    with assert_raises(ValueError):
+        np.nditer((mask, arr), flags=itflags, op_flags=[mask_flags, a_flags],
+                  op_axes=op_axes)
+
+
+def test_iter_writemasked_decref():
+    # force casting (to make it interesting) by using a structured dtype.
+    arr = np.arange(10000).astype(">i,O")
+    original = arr.copy()
+    mask = np.random.randint(0, 2, size=10000).astype(bool)
+
+    it = np.nditer([arr, mask], ['buffered', "refs_ok"],
+                   [['readwrite', 'writemasked'],
+                    ['readonly', 'arraymask']],
+                   op_dtypes=["<i,O", "?"])
+    singleton = object()
+    if HAS_REFCOUNT:
+        count = sys.getrefcount(singleton)
+    for buf, mask_buf in it:
+        buf[...] = (3, singleton)
+
+    del buf, mask_buf, it   # delete everything to ensure correct cleanup
+
+    if HAS_REFCOUNT:
+        # The buffer would have included additional items, they must be
+        # cleared correctly:
+        assert sys.getrefcount(singleton) - count == np.count_nonzero(mask)
+
+    assert_array_equal(arr[~mask], original[~mask])
+    assert (arr[mask] == np.array((3, singleton), arr.dtype)).all()
+    del arr
+
+    if HAS_REFCOUNT:
+        assert sys.getrefcount(singleton) == count
+
+
+def test_iter_non_writable_attribute_deletion():
+    it = np.nditer(np.ones(2))
+    attr = ["value", "shape", "operands", "itviews", "has_delayed_bufalloc",
+            "iterationneedsapi", "has_multi_index", "has_index", "dtypes",
+            "ndim", "nop", "itersize", "finished"]
+
+    for s in attr:
+        assert_raises(AttributeError, delattr, it, s)
+
+
+def test_iter_writable_attribute_deletion():
+    it = np.nditer(np.ones(2))
+    attr = ["multi_index", "index", "iterrange", "iterindex"]
+    for s in attr:
+        assert_raises(AttributeError, delattr, it, s)
+
+
+def test_iter_element_deletion():
+    it = np.nditer(np.ones(3))
+    try:
+        del it[1]
+        del it[1:2]
+    except TypeError:
+        pass
+    except Exception:
+        raise AssertionError
+
+def test_iter_allocated_array_dtypes():
+    # If the dtype of an allocated output has a shape, the shape gets
+    # tacked onto the end of the result.
+    it = np.nditer(([1, 3, 20], None), op_dtypes=[None, ('i4', (2,))])
+    for a, b in it:
+        b[0] = a - 1
+        b[1] = a + 1
+    assert_equal(it.operands[1], [[0, 2], [2, 4], [19, 21]])
+
+    # Check the same (less sensitive) thing when `op_axes` with -1 is given.
+    it = np.nditer(([[1, 3, 20]], None), op_dtypes=[None, ('i4', (2,))],
+                   flags=["reduce_ok"], op_axes=[None, (-1, 0)])
+    for a, b in it:
+        b[0] = a - 1
+        b[1] = a + 1
+    assert_equal(it.operands[1], [[0, 2], [2, 4], [19, 21]])
+
+    # Make sure this works for scalars too
+    it = np.nditer((10, 2, None), op_dtypes=[None, None, ('i4', (2, 2))])
+    for a, b, c in it:
+        c[0, 0] = a - b
+        c[0, 1] = a + b
+        c[1, 0] = a * b
+        c[1, 1] = a / b
+    assert_equal(it.operands[2], [[8, 12], [20, 5]])
+
+
+def test_0d_iter():
+    # Basic test for iteration of 0-d arrays:
+    i = nditer([2, 3], ['multi_index'], [['readonly']] * 2)
+    assert_equal(i.ndim, 0)
+    assert_equal(next(i), (2, 3))
+    assert_equal(i.multi_index, ())
+    assert_equal(i.iterindex, 0)
+    assert_raises(StopIteration, next, i)
+    # test reset:
+    i.reset()
+    assert_equal(next(i), (2, 3))
+    assert_raises(StopIteration, next, i)
+
+    # test forcing to 0-d
+    i = nditer(np.arange(5), ['multi_index'], [['readonly']], op_axes=[()])
+    assert_equal(i.ndim, 0)
+    assert_equal(len(i), 1)
+
+    i = nditer(np.arange(5), ['multi_index'], [['readonly']],
+               op_axes=[()], itershape=())
+    assert_equal(i.ndim, 0)
+    assert_equal(len(i), 1)
+
+    # passing an itershape alone is not enough, the op_axes are also needed
+    with assert_raises(ValueError):
+        nditer(np.arange(5), ['multi_index'], [['readonly']], itershape=())
+
+    # Test a more complex buffered casting case (same as another test above)
+    sdt = [('a', 'f4'), ('b', 'i8'), ('c', 'c8', (2, 3)), ('d', 'O')]
+    a = np.array(0.5, dtype='f4')
+    i = nditer(a, ['buffered', 'refs_ok'], ['readonly'],
+                    casting='unsafe', op_dtypes=sdt)
+    vals = next(i)
+    assert_equal(vals['a'], 0.5)
+    assert_equal(vals['b'], 0)
+    assert_equal(vals['c'], [[(0.5)] * 3] * 2)
+    assert_equal(vals['d'], 0.5)
+
+def test_object_iter_cleanup():
+    # see gh-18450
+    # object arrays can raise a python exception in ufunc inner loops using
+    # nditer, which should cause iteration to stop & cleanup. There were bugs
+    # in the nditer cleanup when decref'ing object arrays.
+    # This test would trigger valgrind "uninitialized read" before the bugfix.
+    assert_raises(TypeError, lambda: np.zeros((17000, 2), dtype='f4') * None)
+
+    # this more explicit code also triggers the invalid access
+    arr = np.arange(ncu.BUFSIZE * 10).reshape(10, -1).astype(str)
+    oarr = arr.astype(object)
+    oarr[:, -1] = None
+    assert_raises(TypeError, lambda: np.add(oarr[:, ::-1], arr[:, ::-1]))
+
+    # followup: this tests for a bug introduced in the first pass of gh-18450,
+    # caused by an incorrect fallthrough of the TypeError
+    class T:
+        def __bool__(self):
+            raise TypeError("Ambiguous")
+    assert_raises(TypeError, np.logical_or.reduce,
+                             np.array([T(), T()], dtype='O'))
+
+def test_object_iter_cleanup_reduce():
+    # Similar as above, but a complex reduction case that was previously
+    # missed (see gh-18810).
+    # The following array is special in that it cannot be flattened:
+    arr = np.array([[None, 1], [-1, -1], [None, 2], [-1, -1]])[::2]
+    with pytest.raises(TypeError):
+        np.sum(arr)
+
+@pytest.mark.parametrize("arr", [
+        np.ones((8000, 4, 2), dtype=object)[:, ::2, :],
+        np.ones((8000, 4, 2), dtype=object, order="F")[:, ::2, :],
+        np.ones((8000, 4, 2), dtype=object)[:, ::2, :].copy("F")])
+def test_object_iter_cleanup_large_reduce(arr):
+    # More complicated calls are possible for large arrays:
+    out = np.ones(8000, dtype=np.intp)
+    # force casting with `dtype=object`
+    res = np.sum(arr, axis=(1, 2), dtype=object, out=out)
+    assert_array_equal(res, np.full(8000, 4, dtype=object))
+
+def test_iter_too_large():
+    # The total size of the iterator must not exceed the maximum intp due
+    # to broadcasting. Dividing by 1024 will keep it small enough to
+    # give a legal array.
+    size = np.iinfo(np.intp).max // 1024
+    arr = np.lib.stride_tricks.as_strided(np.zeros(1), (size,), (0,))
+    assert_raises(ValueError, nditer, (arr, arr[:, None]))
+    # test the same for multiindex. That may get more interesting when
+    # removing 0 dimensional axis is allowed (since an iterator can grow then)
+    assert_raises(ValueError, nditer,
+                  (arr, arr[:, None]), flags=['multi_index'])
+
+
+def test_iter_too_large_with_multiindex():
+    # When a multi index is being tracked, the error is delayed this
+    # checks the delayed error messages and getting below that by
+    # removing an axis.
+    base_size = 2**10
+    num = 1
+    while base_size**num < np.iinfo(np.intp).max:
+        num += 1
+
+    shape_template = [1, 1] * num
+    arrays = []
+    for i in range(num):
+        shape = shape_template[:]
+        shape[i * 2] = 2**10
+        arrays.append(np.empty(shape))
+    arrays = tuple(arrays)
+
+    # arrays are now too large to be broadcast. The different modes test
+    # different nditer functionality with or without GIL.
+    for mode in range(6):
+        with assert_raises(ValueError):
+            _multiarray_tests.test_nditer_too_large(arrays, -1, mode)
+    # but if we do nothing with the nditer, it can be constructed:
+    _multiarray_tests.test_nditer_too_large(arrays, -1, 7)
+
+    # When an axis is removed, things should work again (half the time):
+    for i in range(num):
+        for mode in range(6):
+            # an axis with size 1024 is removed:
+            _multiarray_tests.test_nditer_too_large(arrays, i * 2, mode)
+            # an axis with size 1 is removed:
+            with assert_raises(ValueError):
+                _multiarray_tests.test_nditer_too_large(arrays, i * 2 + 1, mode)
+
+
+def test_invalid_call_of_enable_external_loop():
+    with pytest.raises(ValueError,
+                       match='Iterator flag EXTERNAL_LOOP cannot be used'):
+        np.nditer(([[1], [2]], [3, 4]), ['multi_index']).enable_external_loop()
+
+
+def test_writebacks():
+    a = np.arange(6, dtype='f4')
+    au = a.byteswap()
+    au = au.view(au.dtype.newbyteorder())
+    assert_(a.dtype.byteorder != au.dtype.byteorder)
+    it = nditer(au, [], [['readwrite', 'updateifcopy']],
+                        casting='equiv', op_dtypes=[np.dtype('f4')])
+    with it:
+        it.operands[0][:] = 100
+    assert_equal(au, 100)
+    # do it again, this time raise an error,
+    it = nditer(au, [], [['readwrite', 'updateifcopy']],
+                        casting='equiv', op_dtypes=[np.dtype('f4')])
+    try:
+        with it:
+            assert_equal(au.flags.writeable, False)
+            it.operands[0][:] = 0
+            raise ValueError('exit context manager on exception')
+    except Exception:
+        pass
+    assert_equal(au, 0)
+    assert_equal(au.flags.writeable, True)
+    # cannot reuse i outside context manager
+    assert_raises(ValueError, getattr, it, 'operands')
+
+    it = nditer(au, [], [['readwrite', 'updateifcopy']],
+                        casting='equiv', op_dtypes=[np.dtype('f4')])
+    with it:
+        x = it.operands[0]
+        x[:] = 6
+        assert_(x.flags.writebackifcopy)
+    assert_equal(au, 6)
+    assert_(not x.flags.writebackifcopy)
+    x[:] = 123  # x.data still valid
+    assert_equal(au, 6)  # but not connected to au
+
+    it = nditer(au, [],
+                 [['readwrite', 'updateifcopy']],
+                 casting='equiv', op_dtypes=[np.dtype('f4')])
+    # reentering works
+    with it:
+        with it:
+            for x in it:
+                x[...] = 123
+
+    it = nditer(au, [],
+                 [['readwrite', 'updateifcopy']],
+                 casting='equiv', op_dtypes=[np.dtype('f4')])
+    # make sure exiting the inner context manager closes the iterator
+    with it:
+        with it:
+            for x in it:
+                x[...] = 123
+        assert_raises(ValueError, getattr, it, 'operands')
+    # do not crash if original data array is decrefed
+    it = nditer(au, [],
+                 [['readwrite', 'updateifcopy']],
+                 casting='equiv', op_dtypes=[np.dtype('f4')])
+    del au
+    with it:
+        for x in it:
+            x[...] = 123
+    # make sure we cannot reenter the closed iterator
+    enter = it.__enter__
+    assert_raises(RuntimeError, enter)
+
+def test_close_equivalent():
+    ''' using a context amanger and using nditer.close are equivalent
+    '''
+    def add_close(x, y, out=None):
+        addop = np.add
+        it = np.nditer([x, y, out], [],
+                    [['readonly'], ['readonly'], ['writeonly', 'allocate']])
+        for (a, b, c) in it:
+            addop(a, b, out=c)
+        ret = it.operands[2]
+        it.close()
+        return ret
+
+    def add_context(x, y, out=None):
+        addop = np.add
+        it = np.nditer([x, y, out], [],
+                    [['readonly'], ['readonly'], ['writeonly', 'allocate']])
+        with it:
+            for (a, b, c) in it:
+                addop(a, b, out=c)
+            return it.operands[2]
+    z = add_close(range(5), range(5))
+    assert_equal(z, range(0, 10, 2))
+    z = add_context(range(5), range(5))
+    assert_equal(z, range(0, 10, 2))
+
+def test_close_raises():
+    it = np.nditer(np.arange(3))
+    assert_equal(next(it), 0)
+    it.close()
+    assert_raises(StopIteration, next, it)
+    assert_raises(ValueError, getattr, it, 'operands')
+
+def test_close_parameters():
+    it = np.nditer(np.arange(3))
+    assert_raises(TypeError, it.close, 1)
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_warn_noclose():
+    a = np.arange(6, dtype='f4')
+    au = a.byteswap()
+    au = au.view(au.dtype.newbyteorder())
+    with pytest.warns(RuntimeWarning):
+        it = np.nditer(au, [], [['readwrite', 'updateifcopy']],
+                       casting='equiv', op_dtypes=[np.dtype('f4')])
+        del it
+
+@pytest.mark.parametrize(["in_dtype", "buf_dtype"],
+        [("i", "O"), ("O", "i"),  # most simple cases
+         ("i,O", "O,O"),  # structured partially only copying O
+         ("O,i", "i,O"),  # structured casting to and from O
+         ])
+@pytest.mark.parametrize("steps", [1, 2, 3])
+def test_partial_iteration_cleanup(in_dtype, buf_dtype, steps):
+    """
+    Checks for reference counting leaks during cleanup.  Using explicit
+    reference counts lead to occasional false positives (at least in parallel
+    test setups).  This test now should still test leaks correctly when
+    run e.g. with pytest-valgrind or pytest-leaks
+    """
+    value = 2**30 + 1  # just a random value that Python won't intern
+    arr = np.full(int(ncu.BUFSIZE * 2.5), value).astype(in_dtype)
+
+    it = np.nditer(arr, op_dtypes=[np.dtype(buf_dtype)],
+            flags=["buffered", "external_loop", "refs_ok"], casting="unsafe")
+    for step in range(steps):
+        # The iteration finishes in 3 steps, the first two are partial
+        next(it)
+
+    del it  # not necessary, but we test the cleanup
+
+    # Repeat the test with `iternext`
+    it = np.nditer(arr, op_dtypes=[np.dtype(buf_dtype)],
+                   flags=["buffered", "external_loop", "refs_ok"], casting="unsafe")
+    for step in range(steps):
+        it.iternext()
+
+    del it  # not necessary, but we test the cleanup
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+@pytest.mark.parametrize(["in_dtype", "buf_dtype"],
+         [("O", "i"),  # most simple cases
+          ("O,i", "i,O"),  # structured casting to and from O
+          ])
+def test_partial_iteration_error(in_dtype, buf_dtype):
+    value = 123  # relies on python cache (leak-check will still find it)
+    arr = np.full(int(ncu.BUFSIZE * 2.5), value).astype(in_dtype)
+    if in_dtype == "O":
+        arr[int(ncu.BUFSIZE * 1.5)] = None
+    else:
+        arr[int(ncu.BUFSIZE * 1.5)]["f0"] = None
+
+    count = sys.getrefcount(value)
+
+    it = np.nditer(arr, op_dtypes=[np.dtype(buf_dtype)],
+            flags=["buffered", "external_loop", "refs_ok"], casting="unsafe")
+    with pytest.raises(TypeError):
+        # pytest.raises seems to have issues with the error originating
+        # in the for loop, so manually unravel:
+        next(it)
+        next(it)  # raises TypeError
+
+    # Repeat the test with `iternext` after resetting, the buffers should
+    # already be cleared from any references, so resetting is sufficient.
+    it.reset()
+    with pytest.raises(TypeError):
+        it.iternext()
+        it.iternext()
+
+    assert count == sys.getrefcount(value)
+
+
+def test_arbitrary_number_of_ops():
+    # 2*16 + 1 is still just a few kiB, so should be fast and easy to deal with
+    # but larger than any small custom integer.
+    ops = [np.arange(10) for a in range(2**16 + 1)]
+
+    it = np.nditer(ops)
+    for i, vals in enumerate(it):
+        assert all(v == i for v in vals)
+
+
+def test_arbitrary_number_of_ops_nested():
+    # 2*16 + 1 is still just a few kiB, so should be fast and easy to deal with
+    # but larger than any small custom integer.
+    ops = [np.arange(10) for a in range(2**16 + 1)]
+
+    it = np.nested_iters(ops, [[0], []])
+    for i, vals in enumerate(it):
+        assert all(v == i for v in vals)
+
+
+@pytest.mark.slow
+@pytest.mark.skipif(not IS_64BIT, reason="test requires 64-bit system")
+@requires_memory(9 * np.iinfo(np.intc).max)
+@pytest.mark.thread_unsafe(reason="crashes with low memory")
+def test_arbitrary_number_of_ops_error():
+    # A different error may happen for more than integer operands, but that
+    # is too large to test nicely.
+    a = np.ones(1)
+    args = [a] * (np.iinfo(np.intc).max + 1)
+    with pytest.raises(ValueError, match="Too many operands to nditer"):
+        np.nditer(args)
+
+    with pytest.raises(ValueError, match="Too many operands to nditer"):
+        np.nested_iters(args, [[0], []])
+
+
+@pytest.mark.thread_unsafe(reason="capfd is thread-unsafe")
+def test_debug_print(capfd):
+    """
+    Matches the expected output of a debug print with the actual output.
+    Note that the iterator dump should not be considered stable API,
+    this test is mainly to ensure the print does not crash.
+
+    Currently uses a subprocess to avoid dealing with the C level `printf`s.
+    """
+    # the expected output with all addresses and sizes stripped (they vary
+    # and/or are platform dependent).
+    expected = """
+    ------ BEGIN ITERATOR DUMP ------
+    | Iterator Address:
+    | ItFlags: BUFFER REDUCE
+    | NDim: 2
+    | NOp: 2
+    | IterSize: 50
+    | IterStart: 0
+    | IterEnd: 50
+    | IterIndex: 0
+    | Iterator SizeOf:
+    | BufferData SizeOf:
+    | AxisData SizeOf:
+    |
+    | Perm: 0 1
+    | DTypes:
+    | DTypes: dtype('float64') dtype('int32')
+    | InitDataPtrs:
+    | BaseOffsets: 0 0
+    | Ptrs:
+    | User/buffer ptrs:
+    | Operands:
+    | Operand DTypes: dtype('int64') dtype('float64')
+    | OpItFlags:
+    |   Flags[0]: READ CAST
+    |   Flags[1]: READ WRITE CAST REDUCE
+    |
+    | BufferData:
+    |   BufferSize: 50
+    |   Size: 5
+    |   BufIterEnd: 5
+    |   BUFFER CoreSize: 5
+    |   REDUCE Pos: 0
+    |   REDUCE OuterSize: 10
+    |   REDUCE OuterDim: 1
+    |   Strides: 8 4
+    |   REDUCE Outer Strides: 40 0
+    |   REDUCE Outer Ptrs:
+    |   ReadTransferFn:
+    |   ReadTransferData:
+    |   WriteTransferFn:
+    |   WriteTransferData:
+    |   Buffers:
+    |
+    | AxisData[0]:
+    |   Shape: 5
+    |   Index: 0
+    |   Strides: 16 8
+    | AxisData[1]:
+    |   Shape: 10
+    |   Index: 0
+    |   Strides: 80 0
+    ------- END ITERATOR DUMP -------
+    """.strip().splitlines()
+
+    arr1 = np.arange(100, dtype=np.int64).reshape(10, 10)[:, ::2]
+    arr2 = np.arange(5.)
+    it = np.nditer((arr1, arr2), op_dtypes=["d", "i4"], casting="unsafe",
+                   flags=["reduce_ok", "buffered"],
+                   op_flags=[["readonly"], ["readwrite"]])
+    it.debug_print()
+    res = capfd.readouterr().out
+    res = res.strip().splitlines()
+
+    assert len(res) == len(expected)
+    for res_line, expected_line in zip(res, expected):
+        # The actual output may have additional pointers listed that are
+        # stripped from the example output:
+        assert res_line.startswith(expected_line.strip())
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+def test_signature_constructor():
+    sig = inspect.signature(np.nditer)
+
+    assert sig.parameters
+    assert "self" not in sig.parameters
+    assert "args" not in sig.parameters
+    assert "kwargs" not in sig.parameters
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+@pytest.mark.parametrize(
+    "method",
+    [fn for name, fn in vars(np.nditer).items() if callable(fn) and name[0] != "_"],
+)
+def test_signature_methods(method):
+    sig = inspect.signature(method)
+
+    assert "self" in sig.parameters
+    assert sig.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_nep50_promotions.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_nep50_promotions.py
new file mode 100644
index 0000000000000000000000000000000000000000..8530b3ddd9b78ee591263e78aeac801e4952255f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_nep50_promotions.py
@@ -0,0 +1,287 @@
+"""
+This file adds basic tests to test the NEP 50 style promotion compatibility
+mode.  Most of these test are likely to be simply deleted again once NEP 50
+is adopted in the main test suite.  A few may be moved elsewhere.
+"""
+
+import operator
+
+import hypothesis
+import pytest
+from hypothesis import strategies
+
+import numpy as np
+from numpy.testing import IS_WASM, assert_array_equal
+
+
+@pytest.mark.skipif(IS_WASM, reason="wasm doesn't have support for fp errors")
+def test_nep50_examples():
+    res = np.uint8(1) + 2
+    assert res.dtype == np.uint8
+
+    res = np.array([1], np.uint8) + np.int64(1)
+    assert res.dtype == np.int64
+
+    res = np.array([1], np.uint8) + np.array(1, dtype=np.int64)
+    assert res.dtype == np.int64
+
+    with pytest.warns(RuntimeWarning, match="overflow"):
+        res = np.uint8(100) + 200
+    assert res.dtype == np.uint8
+
+    with pytest.warns(RuntimeWarning, match="overflow"):
+        res = np.float32(1) + 3e100
+
+    assert np.isinf(res)
+    assert res.dtype == np.float32
+
+    res = np.array([0.1], np.float32) == np.float64(0.1)
+    assert res[0] == False
+
+    res = np.array([0.1], np.float32) + np.float64(0.1)
+    assert res.dtype == np.float64
+
+    res = np.array([1.], np.float32) + np.int64(3)
+    assert res.dtype == np.float64
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+def test_nep50_weak_integers(dtype):
+    # Avoids warning (different code path for scalars)
+    scalar_type = np.dtype(dtype).type
+
+    maxint = int(np.iinfo(dtype).max)
+
+    with np.errstate(over="warn"):
+        with pytest.warns(RuntimeWarning):
+            res = scalar_type(100) + maxint
+    assert res.dtype == dtype
+
+    # Array operations are not expected to warn, but should give the same
+    # result dtype.
+    res = np.array(100, dtype=dtype) + maxint
+    assert res.dtype == dtype
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+def test_nep50_weak_integers_with_inexact(dtype):
+    # Avoids warning (different code path for scalars)
+    scalar_type = np.dtype(dtype).type
+
+    too_big_int = int(np.finfo(dtype).max) * 2
+
+    if dtype in "dDG":
+        # These dtypes currently convert to Python float internally, which
+        # raises an OverflowError, while the other dtypes overflow to inf.
+        # NOTE: It may make sense to normalize the behavior!
+        with pytest.raises(OverflowError):
+            scalar_type(1) + too_big_int
+
+        with pytest.raises(OverflowError):
+            np.array(1, dtype=dtype) + too_big_int
+    else:
+        # NumPy uses (or used) `int -> string -> longdouble` for the
+        # conversion.  But Python may refuse `str(int)` for huge ints.
+        # In that case, RuntimeWarning would be correct, but conversion
+        # fails earlier (seems to happen on 32bit linux, possibly only debug).
+        if dtype in "gG":
+            try:
+                str(too_big_int)
+            except ValueError:
+                pytest.skip("`huge_int -> string -> longdouble` failed")
+
+        # Otherwise, we overflow to infinity:
+        with pytest.warns(RuntimeWarning):
+            res = scalar_type(1) + too_big_int
+        assert res.dtype == dtype
+        assert res == np.inf
+
+        with pytest.warns(RuntimeWarning):
+            # We force the dtype here, since windows may otherwise pick the
+            # double instead of the longdouble loop.  That leads to slightly
+            # different results (conversion of the int fails as above).
+            res = np.add(np.array(1, dtype=dtype), too_big_int, dtype=dtype)
+        assert res.dtype == dtype
+        assert res == np.inf
+
+
+@pytest.mark.parametrize("op", [operator.add, operator.pow])
+def test_weak_promotion_scalar_path(op):
+    # Some additional paths exercising the weak scalars.
+
+    # Integer path:
+    res = op(np.uint8(3), 5)
+    assert res == op(3, 5)
+    assert res.dtype == np.uint8 or res.dtype == bool  # noqa: PLR1714
+
+    with pytest.raises(OverflowError):
+        op(np.uint8(3), 1000)
+
+    # Float path:
+    res = op(np.float32(3), 5.)
+    assert res == op(3., 5.)
+    assert res.dtype == np.float32 or res.dtype == bool  # noqa: PLR1714
+
+
+def test_nep50_complex_promotion():
+    with pytest.warns(RuntimeWarning, match=".*overflow"):
+        res = np.complex64(3) + complex(2**300)
+
+    assert type(res) == np.complex64
+
+
+def test_nep50_integer_conversion_errors():
+    # Implementation for error paths is mostly missing (as of writing)
+    with pytest.raises(OverflowError, match=".*uint8"):
+        np.array([1], np.uint8) + 300
+
+    with pytest.raises(OverflowError, match=".*uint8"):
+        np.uint8(1) + 300
+
+    # Error message depends on platform (maybe unsigned int or unsigned long)
+    with pytest.raises(OverflowError,
+            match="Python integer -1 out of bounds for uint8"):
+        np.uint8(1) + -1
+
+
+def test_nep50_with_axisconcatenator():
+    # Concatenate/r_ does not promote, so this has to error:
+    with pytest.raises(OverflowError):
+        np.r_[np.arange(5, dtype=np.int8), 255]
+
+
+@pytest.mark.parametrize("ufunc", [np.add, np.power])
+def test_nep50_huge_integers(ufunc):
+    # Very large integers are complicated, because they go to uint64 or
+    # object dtype.  This tests covers a few possible paths.
+    with pytest.raises(OverflowError):
+        ufunc(np.int64(0), 2**63)  # 2**63 too large for int64
+
+    with pytest.raises(OverflowError):
+        ufunc(np.uint64(0), 2**64)  # 2**64 cannot be represented by uint64
+
+    # However, 2**63 can be represented by the uint64 (and that is used):
+    res = ufunc(np.uint64(1), 2**63)
+
+    assert res.dtype == np.uint64
+    assert res == ufunc(1, 2**63, dtype=object)
+
+    # The following paths fail to warn correctly about the change:
+    with pytest.raises(OverflowError):
+        ufunc(np.int64(1), 2**63)  # np.array(2**63) would go to uint
+
+    with pytest.raises(OverflowError):
+        ufunc(np.int64(1), 2**100)  # np.array(2**100) would go to object
+
+    # This would go to object and thus a Python float, not a NumPy one:
+    res = ufunc(1.0, 2**100)
+    assert isinstance(res, np.float64)
+
+
+def test_nep50_in_concat_and_choose():
+    res = np.concatenate([np.float32(1), 1.], axis=None)
+    assert res.dtype == "float32"
+
+    res = np.choose(1, [np.float32(1), 1.])
+    assert res.dtype == "float32"
+
+
+@pytest.mark.parametrize("expected,dtypes,optional_dtypes", [
+        (np.float32, [np.float32],
+            [np.float16, 0.0, np.uint16, np.int16, np.int8, 0]),
+        (np.complex64, [np.float32, 0j],
+            [np.float16, 0.0, np.uint16, np.int16, np.int8, 0]),
+        (np.float32, [np.int16, np.uint16, np.float16],
+            [np.int8, np.uint8, np.float32, 0., 0]),
+        (np.int32, [np.int16, np.uint16],
+            [np.int8, np.uint8, 0, np.bool]),
+        ])
+@hypothesis.given(data=strategies.data())
+def test_expected_promotion(expected, dtypes, optional_dtypes, data):
+    # Sample randomly while ensuring "dtypes" is always present:
+    optional = data.draw(strategies.lists(
+            strategies.sampled_from(dtypes + optional_dtypes)))
+    all_dtypes = dtypes + optional
+    dtypes_sample = data.draw(strategies.permutations(all_dtypes))
+
+    res = np.result_type(*dtypes_sample)
+    assert res == expected
+
+
+@pytest.mark.parametrize("sctype",
+        [np.int8, np.int16, np.int32, np.int64,
+         np.uint8, np.uint16, np.uint32, np.uint64])
+@pytest.mark.parametrize("other_val",
+        [-2 * 100, -1, 0, 9, 10, 11, 2**63, 2 * 100])
+@pytest.mark.parametrize("comp",
+        [operator.eq, operator.ne, operator.le, operator.lt,
+         operator.ge, operator.gt])
+def test_integer_comparison(sctype, other_val, comp):
+    # Test that comparisons with integers (especially out-of-bound) ones
+    # works correctly.
+    val_obj = 10
+    val = sctype(val_obj)
+    # Check that the scalar behaves the same as the python int:
+    assert comp(10, other_val) == comp(val, other_val)
+    assert comp(val, other_val) == comp(10, other_val)
+    # Except for the result type:
+    assert type(comp(val, other_val)) is np.bool
+
+    # Check that the integer array and object array behave the same:
+    val_obj = np.array([10, 10], dtype=object)
+    val = val_obj.astype(sctype)
+    assert_array_equal(comp(val_obj, other_val), comp(val, other_val))
+    assert_array_equal(comp(other_val, val_obj), comp(other_val, val))
+
+
+@pytest.mark.parametrize("arr", [
+    np.ones((100, 100), dtype=np.uint8)[::2],  # not trivially iterable
+    np.ones(20000, dtype=">u4"),  # cast and >buffersize
+    np.ones(100, dtype=">u4"),  # fast path compatible with cast
+])
+def test_integer_comparison_with_cast(arr):
+    # Similar to above, but mainly test a few cases that cover the slow path
+    # the test is limited to unsigned ints and -1 for simplicity.
+    res = arr >= -1
+    assert_array_equal(res, np.ones_like(arr, dtype=bool))
+    res = arr < -1
+    assert_array_equal(res, np.zeros_like(arr, dtype=bool))
+
+
+@pytest.mark.parametrize("comp",
+        [np.equal, np.not_equal, np.less_equal, np.less,
+         np.greater_equal, np.greater])
+def test_integer_integer_comparison(comp):
+    # Test that the NumPy comparison ufuncs work with large Python integers
+    assert comp(2**200, -2**200) == comp(2**200, -2**200, dtype=object)
+
+
+def create_with_scalar(sctype, value):
+    return sctype(value)
+
+
+def create_with_array(sctype, value):
+    return np.array([value], dtype=sctype)
+
+
+@pytest.mark.parametrize("sctype",
+        [np.int8, np.int16, np.int32, np.int64,
+         np.uint8, np.uint16, np.uint32, np.uint64])
+@pytest.mark.parametrize("create", [create_with_scalar, create_with_array])
+def test_oob_creation(sctype, create):
+    iinfo = np.iinfo(sctype)
+
+    with pytest.raises(OverflowError):
+        create(sctype, iinfo.min - 1)
+
+    with pytest.raises(OverflowError):
+        create(sctype, iinfo.max + 1)
+
+    with pytest.raises(OverflowError):
+        create(sctype, str(iinfo.min - 1))
+
+    with pytest.raises(OverflowError):
+        create(sctype, str(iinfo.max + 1))
+
+    assert create(sctype, iinfo.min) == iinfo.min
+    assert create(sctype, iinfo.max) == iinfo.max
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_numeric.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_numeric.py
new file mode 100644
index 0000000000000000000000000000000000000000..da87e5c1f3d843a06422af4ef9c35b6c5db0a783
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_numeric.py
@@ -0,0 +1,4301 @@
+import inspect
+import itertools
+import math
+import platform
+import sys
+import warnings
+from decimal import Decimal
+
+import pytest
+from hypothesis import given, strategies as st
+from hypothesis.extra import numpy as hynp
+
+import numpy as np
+from numpy import ma
+from numpy._core import sctypes
+from numpy._core._rational_tests import rational
+from numpy._core.numerictypes import obj2sctype
+from numpy.exceptions import AxisError
+from numpy.random import rand, randint, randn
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_PYPY,
+    IS_WASM,
+    assert_,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_array_max_ulp,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+class TestResize:
+    def test_copies(self):
+        A = np.array([[1, 2], [3, 4]])
+        Ar1 = np.array([[1, 2, 3, 4], [1, 2, 3, 4]])
+        assert_equal(np.resize(A, (2, 4)), Ar1)
+
+        Ar2 = np.array([[1, 2], [3, 4], [1, 2], [3, 4]])
+        assert_equal(np.resize(A, (4, 2)), Ar2)
+
+        Ar3 = np.array([[1, 2, 3], [4, 1, 2], [3, 4, 1], [2, 3, 4]])
+        assert_equal(np.resize(A, (4, 3)), Ar3)
+
+    def test_repeats(self):
+        A = np.array([1, 2, 3])
+        Ar1 = np.array([[1, 2, 3, 1], [2, 3, 1, 2]])
+        assert_equal(np.resize(A, (2, 4)), Ar1)
+
+        Ar2 = np.array([[1, 2], [3, 1], [2, 3], [1, 2]])
+        assert_equal(np.resize(A, (4, 2)), Ar2)
+
+        Ar3 = np.array([[1, 2, 3], [1, 2, 3], [1, 2, 3], [1, 2, 3]])
+        assert_equal(np.resize(A, (4, 3)), Ar3)
+
+    def test_zeroresize(self):
+        A = np.array([[1, 2], [3, 4]])
+        Ar = np.resize(A, (0,))
+        assert_array_equal(Ar, np.array([]))
+        assert_equal(A.dtype, Ar.dtype)
+
+        Ar = np.resize(A, (0, 2))
+        assert_equal(Ar.shape, (0, 2))
+
+        Ar = np.resize(A, (2, 0))
+        assert_equal(Ar.shape, (2, 0))
+
+    def test_reshape_from_zero(self):
+        # See also gh-6740
+        A = np.zeros(0, dtype=[('a', np.float32)])
+        Ar = np.resize(A, (2, 1))
+        assert_array_equal(Ar, np.zeros((2, 1), Ar.dtype))
+        assert_equal(A.dtype, Ar.dtype)
+
+    def test_negative_resize(self):
+        A = np.arange(0, 10, dtype=np.float32)
+        new_shape = (-10, -1)
+        with pytest.raises(ValueError, match=r"negative"):
+            np.resize(A, new_shape=new_shape)
+
+    def test_unsigned_resize(self):
+        # ensure unsigned integer sizes don't lead to underflows
+        for dt_pair in [(np.int32, np.uint32), (np.int64, np.uint64)]:
+            arr = np.array([[23, 95], [66, 37]])
+            assert_array_equal(np.resize(arr, dt_pair[0](1)),
+                               np.resize(arr, dt_pair[1](1)))
+
+    def test_subclass(self):
+        class MyArray(np.ndarray):
+            __array_priority__ = 1.
+
+        my_arr = np.array([1]).view(MyArray)
+        assert type(np.resize(my_arr, 5)) is MyArray
+        assert type(np.resize(my_arr, 0)) is MyArray
+
+        my_arr = np.array([]).view(MyArray)
+        assert type(np.resize(my_arr, 5)) is MyArray
+
+
+class TestNonarrayArgs:
+    # check that non-array arguments to functions wrap them in arrays
+    def test_choose(self):
+        choices = [[0, 1, 2],
+                   [3, 4, 5],
+                   [5, 6, 7]]
+        tgt = [5, 1, 5]
+        a = [2, 0, 1]
+
+        out = np.choose(a, choices)
+        assert_equal(out, tgt)
+
+    def test_clip(self):
+        arr = [-1, 5, 2, 3, 10, -4, -9]
+        out = np.clip(arr, 2, 7)
+        tgt = [2, 5, 2, 3, 7, 2, 2]
+        assert_equal(out, tgt)
+
+    def test_compress(self):
+        arr = [[0, 1, 2, 3, 4],
+               [5, 6, 7, 8, 9]]
+        tgt = [[5, 6, 7, 8, 9]]
+        out = np.compress([0, 1], arr, axis=0)
+        assert_equal(out, tgt)
+
+    def test_count_nonzero(self):
+        arr = [[0, 1, 7, 0, 0],
+               [3, 0, 0, 2, 19]]
+        tgt = np.array([2, 3])
+        out = np.count_nonzero(arr, axis=1)
+        assert_equal(out, tgt)
+
+    def test_diagonal(self):
+        a = [[0, 1, 2, 3],
+             [4, 5, 6, 7],
+             [8, 9, 10, 11]]
+        out = np.diagonal(a)
+        tgt = [0, 5, 10]
+
+        assert_equal(out, tgt)
+
+    def test_mean(self):
+        A = [[1, 2, 3], [4, 5, 6]]
+        assert_(np.mean(A) == 3.5)
+        assert_(np.all(np.mean(A, 0) == np.array([2.5, 3.5, 4.5])))
+        assert_(np.all(np.mean(A, 1) == np.array([2., 5.])))
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_(np.isnan(np.mean([])))
+            assert_(w[0].category is RuntimeWarning)
+
+    def test_ptp(self):
+        a = [3, 4, 5, 10, -3, -5, 6.0]
+        assert_equal(np.ptp(a, axis=0), 15.0)
+
+    def test_prod(self):
+        arr = [[1, 2, 3, 4],
+               [5, 6, 7, 9],
+               [10, 3, 4, 5]]
+        tgt = [24, 1890, 600]
+
+        assert_equal(np.prod(arr, axis=-1), tgt)
+
+    def test_ravel(self):
+        a = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]
+        tgt = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
+        assert_equal(np.ravel(a), tgt)
+
+    def test_repeat(self):
+        a = [1, 2, 3]
+        tgt = [1, 1, 2, 2, 3, 3]
+
+        out = np.repeat(a, 2)
+        assert_equal(out, tgt)
+
+    def test_reshape(self):
+        arr = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]
+        tgt = [[1, 2, 3, 4, 5, 6], [7, 8, 9, 10, 11, 12]]
+        assert_equal(np.reshape(arr, (2, 6)), tgt)
+
+    def test_reshape_shape_arg(self):
+        arr = np.arange(12)
+        shape = (3, 4)
+        expected = arr.reshape(shape)
+
+        with pytest.raises(
+            TypeError,
+            match=r"reshape\(\) missing 1 required positional "
+                  "argument: 'shape'"
+        ):
+            np.reshape(arr)
+
+        assert_equal(np.reshape(arr, shape), expected)
+        assert_equal(np.reshape(arr, shape, order="C"), expected)
+        assert_equal(np.reshape(arr, shape, "C"), expected)
+        assert_equal(np.reshape(arr, shape=shape), expected)
+        assert_equal(np.reshape(arr, shape=shape, order="C"), expected)
+
+    def test_reshape_copy_arg(self):
+        arr = np.arange(24).reshape(2, 3, 4)
+        arr_f_ord = np.array(arr, order="F")
+        shape = (12, 2)
+
+        assert np.shares_memory(np.reshape(arr, shape), arr)
+        assert np.shares_memory(np.reshape(arr, shape, order="C"), arr)
+        assert np.shares_memory(
+            np.reshape(arr_f_ord, shape, order="F"), arr_f_ord)
+        assert np.shares_memory(np.reshape(arr, shape, copy=None), arr)
+        assert np.shares_memory(np.reshape(arr, shape, copy=False), arr)
+        assert np.shares_memory(arr.reshape(shape, copy=False), arr)
+        assert not np.shares_memory(np.reshape(arr, shape, copy=True), arr)
+        assert not np.shares_memory(
+            np.reshape(arr, shape, order="C", copy=True), arr)
+        assert not np.shares_memory(
+            np.reshape(arr, shape, order="F", copy=True), arr)
+        assert not np.shares_memory(
+            np.reshape(arr, shape, order="F", copy=None), arr)
+
+        err_msg = "Unable to avoid creating a copy while reshaping."
+        with pytest.raises(ValueError, match=err_msg):
+            np.reshape(arr, shape, order="F", copy=False)
+        with pytest.raises(ValueError, match=err_msg):
+            np.reshape(arr_f_ord, shape, order="C", copy=False)
+
+    def test_round(self):
+        arr = [1.56, 72.54, 6.35, 3.25]
+        tgt = [1.6, 72.5, 6.4, 3.2]
+        assert_equal(np.around(arr, decimals=1), tgt)
+        s = np.float64(1.)
+        assert_(isinstance(s.round(), np.float64))
+        assert_equal(s.round(), 1.)
+
+    @pytest.mark.parametrize('dtype', [
+        np.int8, np.int16, np.int32, np.int64,
+        np.uint8, np.uint16, np.uint32, np.uint64,
+        np.float16, np.float32, np.float64,
+    ])
+    def test_dunder_round(self, dtype):
+        s = dtype(1)
+        assert_(isinstance(round(s), int))
+        assert_(isinstance(round(s, None), int))
+        assert_(isinstance(round(s, ndigits=None), int))
+        assert_equal(round(s), 1)
+        assert_equal(round(s, None), 1)
+        assert_equal(round(s, ndigits=None), 1)
+
+    @pytest.mark.parametrize('val, ndigits', [
+        pytest.param(2**31 - 1, -1,
+            marks=pytest.mark.skip(reason="Out of range of int32")
+        ),
+        (2**31 - 1, 1 - math.ceil(math.log10(2**31 - 1))),
+        (2**31 - 1, -math.ceil(math.log10(2**31 - 1)))
+    ])
+    def test_dunder_round_edgecases(self, val, ndigits):
+        assert_equal(round(val, ndigits), round(np.int32(val), ndigits))
+
+    def test_dunder_round_accuracy(self):
+        f = np.float64(5.1 * 10**73)
+        assert_(isinstance(round(f, -73), np.float64))
+        assert_array_max_ulp(round(f, -73), 5.0 * 10**73)
+        assert_(isinstance(round(f, ndigits=-73), np.float64))
+        assert_array_max_ulp(round(f, ndigits=-73), 5.0 * 10**73)
+
+        i = np.int64(501)
+        assert_(isinstance(round(i, -2), np.int64))
+        assert_array_max_ulp(round(i, -2), 500)
+        assert_(isinstance(round(i, ndigits=-2), np.int64))
+        assert_array_max_ulp(round(i, ndigits=-2), 500)
+
+    @pytest.mark.xfail(raises=AssertionError, reason="gh-15896")
+    def test_round_py_consistency(self):
+        f = 5.1 * 10**73
+        assert_equal(round(np.float64(f), -73), round(f, -73))
+
+    def test_searchsorted(self):
+        arr = [-8, -5, -1, 3, 6, 10]
+        out = np.searchsorted(arr, 0)
+        assert_equal(out, 3)
+
+    def test_size(self):
+        A = [[1, 2, 3], [4, 5, 6]]
+        assert_(np.size(A) == 6)
+        assert_(np.size(A, 0) == 2)
+        assert_(np.size(A, 1) == 3)
+        assert_(np.size(A, ()) == 1)
+        assert_(np.size(A, (0,)) == 2)
+        assert_(np.size(A, (1,)) == 3)
+        assert_(np.size(A, (0, 1)) == 6)
+
+    def test_squeeze(self):
+        A = [[[1, 1, 1], [2, 2, 2], [3, 3, 3]]]
+        assert_equal(np.squeeze(A).shape, (3, 3))
+        assert_equal(np.squeeze(np.zeros((1, 3, 1))).shape, (3,))
+        assert_equal(np.squeeze(np.zeros((1, 3, 1)), axis=0).shape, (3, 1))
+        assert_equal(np.squeeze(np.zeros((1, 3, 1)), axis=-1).shape, (1, 3))
+        assert_equal(np.squeeze(np.zeros((1, 3, 1)), axis=2).shape, (1, 3))
+        assert_equal(np.squeeze([np.zeros((3, 1))]).shape, (3,))
+        assert_equal(np.squeeze([np.zeros((3, 1))], axis=0).shape, (3, 1))
+        assert_equal(np.squeeze([np.zeros((3, 1))], axis=2).shape, (1, 3))
+        assert_equal(np.squeeze([np.zeros((3, 1))], axis=-1).shape, (1, 3))
+
+    def test_std(self):
+        A = [[1, 2, 3], [4, 5, 6]]
+        assert_almost_equal(np.std(A), 1.707825127659933)
+        assert_almost_equal(np.std(A, 0), np.array([1.5, 1.5, 1.5]))
+        assert_almost_equal(np.std(A, 1), np.array([0.81649658, 0.81649658]))
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_(np.isnan(np.std([])))
+            assert_(w[0].category is RuntimeWarning)
+
+    def test_swapaxes(self):
+        tgt = [[[0, 4], [2, 6]], [[1, 5], [3, 7]]]
+        a = [[[0, 1], [2, 3]], [[4, 5], [6, 7]]]
+        out = np.swapaxes(a, 0, 2)
+        assert_equal(out, tgt)
+
+    def test_sum(self):
+        m = [[1, 2, 3],
+             [4, 5, 6],
+             [7, 8, 9]]
+        tgt = [[6], [15], [24]]
+        out = np.sum(m, axis=1, keepdims=True)
+
+        assert_equal(tgt, out)
+
+    def test_take(self):
+        tgt = [2, 3, 5]
+        indices = [1, 2, 4]
+        a = [1, 2, 3, 4, 5]
+
+        out = np.take(a, indices)
+        assert_equal(out, tgt)
+
+        pairs = [
+            (np.int32, np.int32), (np.int32, np.int64),
+            (np.int64, np.int32), (np.int64, np.int64)
+        ]
+        for array_type, indices_type in pairs:
+            x = np.array([1, 2, 3, 4, 5], dtype=array_type)
+            ind = np.array([0, 2, 2, 3], dtype=indices_type)
+            tgt = np.array([1, 3, 3, 4], dtype=array_type)
+            out = np.take(x, ind)
+            assert_equal(out, tgt)
+            assert_equal(out.dtype, tgt.dtype)
+
+    def test_trace(self):
+        c = [[1, 2], [3, 4], [5, 6]]
+        assert_equal(np.trace(c), 5)
+
+    def test_transpose(self):
+        arr = [[1, 2], [3, 4], [5, 6]]
+        tgt = [[1, 3, 5], [2, 4, 6]]
+        assert_equal(np.transpose(arr, (1, 0)), tgt)
+        assert_equal(np.transpose(arr, (-1, -2)), tgt)
+        assert_equal(np.matrix_transpose(arr), tgt)
+
+    def test_var(self):
+        A = [[1, 2, 3], [4, 5, 6]]
+        assert_almost_equal(np.var(A), 2.9166666666666665)
+        assert_almost_equal(np.var(A, 0), np.array([2.25, 2.25, 2.25]))
+        assert_almost_equal(np.var(A, 1), np.array([0.66666667, 0.66666667]))
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_(np.isnan(np.var([])))
+            assert_(w[0].category is RuntimeWarning)
+
+        B = np.array([None, 0])
+        B[0] = 1j
+        assert_almost_equal(np.var(B), 0.25)
+
+    def test_std_with_mean_keyword(self):
+        # Setting the seed to make the test reproducible
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        mean_out = np.zeros((10, 1, 5))
+        std_out = np.zeros((10, 1, 5))
+
+        mean = np.mean(A,
+                       out=mean_out,
+                       axis=1,
+                       keepdims=True)
+
+        # The returned  object should be the object specified during calling
+        assert mean_out is mean
+
+        std = np.std(A,
+                     out=std_out,
+                     axis=1,
+                     keepdims=True,
+                     mean=mean)
+
+        # The returned  object should be the object specified during calling
+        assert std_out is std
+
+        # Shape of returned mean and std should be same
+        assert std.shape == mean.shape
+        assert std.shape == (10, 1, 5)
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.std(A, axis=1, keepdims=True)
+
+        assert std_old.shape == mean.shape
+        assert_almost_equal(std, std_old)
+
+    def test_var_with_mean_keyword(self):
+        # Setting the seed to make the test reproducible
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        mean_out = np.zeros((10, 1, 5))
+        var_out = np.zeros((10, 1, 5))
+
+        mean = np.mean(A,
+                       out=mean_out,
+                       axis=1,
+                       keepdims=True)
+
+        # The returned  object should be the object specified during calling
+        assert mean_out is mean
+
+        var = np.var(A,
+                     out=var_out,
+                     axis=1,
+                     keepdims=True,
+                     mean=mean)
+
+        # The returned  object should be the object specified during calling
+        assert var_out is var
+
+        # Shape of returned mean and var should be same
+        assert var.shape == mean.shape
+        assert var.shape == (10, 1, 5)
+
+        # Output should be the same as from the individual algorithms
+        var_old = np.var(A, axis=1, keepdims=True)
+
+        assert var_old.shape == mean.shape
+        assert_almost_equal(var, var_old)
+
+    def test_std_with_mean_keyword_keepdims_false(self):
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        mean = np.mean(A,
+                       axis=1,
+                       keepdims=True)
+
+        std = np.std(A,
+                     axis=1,
+                     keepdims=False,
+                     mean=mean)
+
+        # Shape of returned mean and std should be same
+        assert std.shape == (10, 5)
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.std(A, axis=1, keepdims=False)
+        mean_old = np.mean(A, axis=1, keepdims=False)
+
+        assert std_old.shape == mean_old.shape
+        assert_equal(std, std_old)
+
+    def test_var_with_mean_keyword_keepdims_false(self):
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        mean = np.mean(A,
+                       axis=1,
+                       keepdims=True)
+
+        var = np.var(A,
+                     axis=1,
+                     keepdims=False,
+                     mean=mean)
+
+        # Shape of returned mean and var should be same
+        assert var.shape == (10, 5)
+
+        # Output should be the same as from the individual algorithms
+        var_old = np.var(A, axis=1, keepdims=False)
+        mean_old = np.mean(A, axis=1, keepdims=False)
+
+        assert var_old.shape == mean_old.shape
+        assert_equal(var, var_old)
+
+    def test_std_with_mean_keyword_where_nontrivial(self):
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        where = A > 0.5
+
+        mean = np.mean(A,
+                       axis=1,
+                       keepdims=True,
+                       where=where)
+
+        std = np.std(A,
+                     axis=1,
+                     keepdims=False,
+                     mean=mean,
+                     where=where)
+
+        # Shape of returned mean and std should be same
+        assert std.shape == (10, 5)
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.std(A, axis=1, where=where)
+        mean_old = np.mean(A, axis=1, where=where)
+
+        assert std_old.shape == mean_old.shape
+        assert_equal(std, std_old)
+
+    def test_var_with_mean_keyword_where_nontrivial(self):
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        where = A > 0.5
+
+        mean = np.mean(A,
+                       axis=1,
+                       keepdims=True,
+                       where=where)
+
+        var = np.var(A,
+                     axis=1,
+                     keepdims=False,
+                     mean=mean,
+                     where=where)
+
+        # Shape of returned mean and var should be same
+        assert var.shape == (10, 5)
+
+        # Output should be the same as from the individual algorithms
+        var_old = np.var(A, axis=1, where=where)
+        mean_old = np.mean(A, axis=1, where=where)
+
+        assert var_old.shape == mean_old.shape
+        assert_equal(var, var_old)
+
+    def test_std_with_mean_keyword_multiple_axis(self):
+        # Setting the seed to make the test reproducible
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        axis = (0, 2)
+
+        mean = np.mean(A,
+                       out=None,
+                       axis=axis,
+                       keepdims=True)
+
+        std = np.std(A,
+                     out=None,
+                     axis=axis,
+                     keepdims=False,
+                     mean=mean)
+
+        # Shape of returned mean and std should be same
+        assert std.shape == (20,)
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.std(A, axis=axis, keepdims=False)
+
+        assert_almost_equal(std, std_old)
+
+    def test_std_with_mean_keyword_axis_None(self):
+        # Setting the seed to make the test reproducible
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+
+        axis = None
+
+        mean = np.mean(A,
+                       out=None,
+                       axis=axis,
+                       keepdims=True)
+
+        std = np.std(A,
+                     out=None,
+                     axis=axis,
+                     keepdims=False,
+                     mean=mean)
+
+        # Shape of returned mean and std should be same
+        assert std.shape == ()
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.std(A, axis=axis, keepdims=False)
+
+        assert_almost_equal(std, std_old)
+
+    def test_std_with_mean_keyword_keepdims_true_masked(self):
+
+        A = ma.array([[2., 3., 4., 5.],
+                      [1., 2., 3., 4.]],
+                     mask=[[True, False, True, False],
+                           [True, False, True, False]])
+
+        B = ma.array([[100., 3., 104., 5.],
+                      [101., 2., 103., 4.]],
+                      mask=[[True, False, True, False],
+                            [True, False, True, False]])
+
+        mean_out = ma.array([[0., 0., 0., 0.]],
+                            mask=[[False, False, False, False]])
+        std_out = ma.array([[0., 0., 0., 0.]],
+                           mask=[[False, False, False, False]])
+
+        axis = 0
+
+        mean = np.mean(A, out=mean_out,
+                       axis=axis, keepdims=True)
+
+        std = np.std(A, out=std_out,
+                     axis=axis, keepdims=True,
+                     mean=mean)
+
+        # Shape of returned mean and std should be same
+        assert std.shape == mean.shape
+        assert std.shape == (1, 4)
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.std(A, axis=axis, keepdims=True)
+        mean_old = np.mean(A, axis=axis, keepdims=True)
+
+        assert std_old.shape == mean_old.shape
+        assert_almost_equal(std, std_old)
+        assert_almost_equal(mean, mean_old)
+
+        assert mean_out is mean
+        assert std_out is std
+
+        # masked elements should be ignored
+        mean_b = np.mean(B, axis=axis, keepdims=True)
+        std_b = np.std(B, axis=axis, keepdims=True, mean=mean_b)
+        assert_almost_equal(std, std_b)
+        assert_almost_equal(mean, mean_b)
+
+    def test_var_with_mean_keyword_keepdims_true_masked(self):
+
+        A = ma.array([[2., 3., 4., 5.],
+                      [1., 2., 3., 4.]],
+                     mask=[[True, False, True, False],
+                           [True, False, True, False]])
+
+        B = ma.array([[100., 3., 104., 5.],
+                      [101., 2., 103., 4.]],
+                      mask=[[True, False, True, False],
+                            [True, False, True, False]])
+
+        mean_out = ma.array([[0., 0., 0., 0.]],
+                            mask=[[False, False, False, False]])
+        var_out = ma.array([[0., 0., 0., 0.]],
+                           mask=[[False, False, False, False]])
+
+        axis = 0
+
+        mean = np.mean(A, out=mean_out,
+                       axis=axis, keepdims=True)
+
+        var = np.var(A, out=var_out,
+                     axis=axis, keepdims=True,
+                     mean=mean)
+
+        # Shape of returned mean and var should be same
+        assert var.shape == mean.shape
+        assert var.shape == (1, 4)
+
+        # Output should be the same as from the individual algorithms
+        var_old = np.var(A, axis=axis, keepdims=True)
+        mean_old = np.mean(A, axis=axis, keepdims=True)
+
+        assert var_old.shape == mean_old.shape
+        assert_almost_equal(var, var_old)
+        assert_almost_equal(mean, mean_old)
+
+        assert mean_out is mean
+        assert var_out is var
+
+        # masked elements should be ignored
+        mean_b = np.mean(B, axis=axis, keepdims=True)
+        var_b = np.var(B, axis=axis, keepdims=True, mean=mean_b)
+        assert_almost_equal(var, var_b)
+        assert_almost_equal(mean, mean_b)
+
+
+class TestIsscalar:
+    def test_isscalar(self):
+        assert_(np.isscalar(3.1))
+        assert_(np.isscalar(np.int16(12345)))
+        assert_(np.isscalar(False))
+        assert_(np.isscalar('numpy'))
+        assert_(not np.isscalar([3.1]))
+        assert_(not np.isscalar(None))
+
+        # PEP 3141
+        from fractions import Fraction
+        assert_(np.isscalar(Fraction(5, 17)))
+        from numbers import Number
+        assert_(np.isscalar(Number()))
+
+
+class TestBoolScalar:
+    def test_logical(self):
+        f = np.False_
+        t = np.True_
+        s = "xyz"
+        assert_((t and s) is s)
+        assert_((f and s) is f)
+
+    def test_bitwise_or(self):
+        f = np.False_
+        t = np.True_
+        assert_((t | t) is t)
+        assert_((f | t) is t)
+        assert_((t | f) is t)
+        assert_((f | f) is f)
+
+    def test_bitwise_and(self):
+        f = np.False_
+        t = np.True_
+        assert_((t & t) is t)
+        assert_((f & t) is f)
+        assert_((t & f) is f)
+        assert_((f & f) is f)
+
+    def test_bitwise_xor(self):
+        f = np.False_
+        t = np.True_
+        assert_((t ^ t) is f)
+        assert_((f ^ t) is t)
+        assert_((t ^ f) is t)
+        assert_((f ^ f) is f)
+
+
+class TestBoolArray:
+    def _create_bool_arrays(self):
+        # offset for simd tests
+        t = np.array([True] * 41, dtype=bool)[1::]
+        f = np.array([False] * 41, dtype=bool)[1::]
+        o = np.array([False] * 42, dtype=bool)[2::]
+        nm = f.copy()
+        im = t.copy()
+        nm[3] = True
+        nm[-2] = True
+        im[3] = False
+        im[-2] = False
+        return t, f, o, nm, im
+
+    def test_all_any(self):
+        t, f, _, nm, im = self._create_bool_arrays()
+        assert_(t.all())
+        assert_(t.any())
+        assert_(not f.all())
+        assert_(not f.any())
+        assert_(nm.any())
+        assert_(im.any())
+        assert_(not nm.all())
+        assert_(not im.all())
+        # check bad element in all positions
+        for i in range(256 - 7):
+            d = np.array([False] * 256, dtype=bool)[7::]
+            d[i] = True
+            assert_(np.any(d))
+            e = np.array([True] * 256, dtype=bool)[7::]
+            e[i] = False
+            assert_(not np.all(e))
+            assert_array_equal(e, ~d)
+        # big array test for blocked libc loops
+        for i in list(range(9, 6000, 507)) + [7764, 90021, -10]:
+            d = np.array([False] * 100043, dtype=bool)
+            d[i] = True
+            assert_(np.any(d), msg=f"{i!r}")
+            e = np.array([True] * 100043, dtype=bool)
+            e[i] = False
+            assert_(not np.all(e), msg=f"{i!r}")
+
+    def test_logical_not_abs(self):
+        t, f, o, nm, im = self._create_bool_arrays()
+        assert_array_equal(~t, f)
+        assert_array_equal(np.abs(~t), f)
+        assert_array_equal(np.abs(~f), t)
+        assert_array_equal(np.abs(f), f)
+        assert_array_equal(~np.abs(f), t)
+        assert_array_equal(~np.abs(t), f)
+        assert_array_equal(np.abs(~nm), im)
+        np.logical_not(t, out=o)
+        assert_array_equal(o, f)
+        np.abs(t, out=o)
+        assert_array_equal(o, t)
+
+    def test_logical_and_or_xor(self):
+        t, f, o, nm, im = self._create_bool_arrays()
+        assert_array_equal(t | t, t)
+        assert_array_equal(f | f, f)
+        assert_array_equal(t | f, t)
+        assert_array_equal(f | t, t)
+        np.logical_or(t, t, out=o)
+        assert_array_equal(o, t)
+        assert_array_equal(t & t, t)
+        assert_array_equal(f & f, f)
+        assert_array_equal(t & f, f)
+        assert_array_equal(f & t, f)
+        np.logical_and(t, t, out=o)
+        assert_array_equal(o, t)
+        assert_array_equal(t ^ t, f)
+        assert_array_equal(f ^ f, f)
+        assert_array_equal(t ^ f, t)
+        assert_array_equal(f ^ t, t)
+        np.logical_xor(t, t, out=o)
+        assert_array_equal(o, f)
+
+        assert_array_equal(nm & t, nm)
+        assert_array_equal(im & f, False)
+        assert_array_equal(nm & True, nm)
+        assert_array_equal(im & False, f)
+        assert_array_equal(nm | t, t)
+        assert_array_equal(im | f, im)
+        assert_array_equal(nm | True, t)
+        assert_array_equal(im | False, im)
+        assert_array_equal(nm ^ t, im)
+        assert_array_equal(im ^ f, im)
+        assert_array_equal(nm ^ True, im)
+        assert_array_equal(im ^ False, im)
+
+
+class TestBoolCmp:
+    def _create_data(self, dtype, size):
+        # generate data using given dtype and num for size of array
+        a = np.ones(size, dtype=dtype)
+        e = np.ones(a.size, dtype=bool)
+        # generate values for all permutation of 256bit simd vectors
+        s = 0
+        r = int(size / 32)
+        for i in range(int(size / 8)):
+            a[s:s + r] = [i & 2**x for x in range(r)]
+            e[s:s + r] = [(i & 2**x) != 0 for x in range(r)]
+            s += r
+        n = a.copy()
+        n[e] = np.nan
+
+        inf = a.copy()
+        inf[::3][e[::3]] = np.inf
+        inf[1::3][e[1::3]] = -np.inf
+        inf[2::3][e[2::3]] = np.nan
+        enonan = e.copy()
+        enonan[2::3] = False
+
+        sign = a.copy()
+        sign[e] *= -1.
+        sign[1::6][e[1::6]] = -np.inf
+        # On RISC-V, many operations that produce NaNs, such as converting
+        # a -NaN from f64 to f32, return a canonical NaN.  The canonical
+        # NaNs are always positive.  See section 11.3 NaN Generation and
+        # Propagation of the RISC-V Unprivileged ISA for more details.
+        # We disable the float32 sign test on riscv64 for -np.nan as the sign
+        # of the NaN will be lost when it's converted to a float32.
+        if not (dtype == np.float32 and platform.machine() == 'riscv64'):
+            sign[3::6][e[3::6]] = -np.nan
+        sign[4::6][e[4::6]] = -0.
+        return a, e, n, inf, enonan, sign
+
+    def test_float(self):
+        # offset for alignment test
+        f, ef, nf, inff, efnonan, signf = self._create_data(np.float32, 256)
+        for i in range(4):
+            assert_array_equal(f[i:] > 0, ef[i:])
+            assert_array_equal(f[i:] - 1 >= 0, ef[i:])
+            assert_array_equal(f[i:] == 0, ~ef[i:])
+            assert_array_equal(-f[i:] < 0, ef[i:])
+            assert_array_equal(-f[i:] + 1 <= 0, ef[i:])
+            r = f[i:] != 0
+            assert_array_equal(r, ef[i:])
+            r2 = f[i:] != np.zeros_like(f[i:])
+            r3 = 0 != f[i:]
+            assert_array_equal(r, r2)
+            assert_array_equal(r, r3)
+            # check bool == 0x1
+            assert_array_equal(r.view(np.int8), r.astype(np.int8))
+            assert_array_equal(r2.view(np.int8), r2.astype(np.int8))
+            assert_array_equal(r3.view(np.int8), r3.astype(np.int8))
+
+            # isnan on amd64 takes the same code path
+            assert_array_equal(np.isnan(nf[i:]), ef[i:])
+            assert_array_equal(np.isfinite(nf[i:]), ~ef[i:])
+            assert_array_equal(np.isfinite(inff[i:]), ~ef[i:])
+            assert_array_equal(np.isinf(inff[i:]), efnonan[i:])
+            assert_array_equal(np.signbit(signf[i:]), ef[i:])
+
+    def test_double(self):
+        # offset for alignment test
+        d, ed, nd, infd, ednonan, signd = self._create_data(np.float64, 128)
+        for i in range(2):
+            assert_array_equal(d[i:] > 0, ed[i:])
+            assert_array_equal(d[i:] - 1 >= 0, ed[i:])
+            assert_array_equal(d[i:] == 0, ~ed[i:])
+            assert_array_equal(-d[i:] < 0, ed[i:])
+            assert_array_equal(-d[i:] + 1 <= 0, ed[i:])
+            r = d[i:] != 0
+            assert_array_equal(r, ed[i:])
+            r2 = d[i:] != np.zeros_like(d[i:])
+            r3 = 0 != d[i:]
+            assert_array_equal(r, r2)
+            assert_array_equal(r, r3)
+            # check bool == 0x1
+            assert_array_equal(r.view(np.int8), r.astype(np.int8))
+            assert_array_equal(r2.view(np.int8), r2.astype(np.int8))
+            assert_array_equal(r3.view(np.int8), r3.astype(np.int8))
+
+            # isnan on amd64 takes the same code path
+            assert_array_equal(np.isnan(nd[i:]), ed[i:])
+            assert_array_equal(np.isfinite(nd[i:]), ~ed[i:])
+            assert_array_equal(np.isfinite(infd[i:]), ~ed[i:])
+            assert_array_equal(np.isinf(infd[i:]), ednonan[i:])
+            assert_array_equal(np.signbit(signd[i:]), ed[i:])
+
+
+class TestSeterr:
+    def test_default(self):
+        err = np.geterr()
+        assert_equal(err,
+                     {'divide': 'warn',
+                          'invalid': 'warn',
+                          'over': 'warn',
+                          'under': 'ignore'}
+                     )
+
+    def test_set(self):
+        with np.errstate():
+            err = np.seterr()
+            old = np.seterr(divide='print')
+            assert_(err == old)
+            new = np.seterr()
+            assert_(new['divide'] == 'print')
+            np.seterr(over='raise')
+            assert_(np.geterr()['over'] == 'raise')
+            assert_(new['divide'] == 'print')
+            np.seterr(**old)
+            assert_(np.geterr() == old)
+
+    @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support")
+    @pytest.mark.skipif(platform.machine() == "armv5tel", reason="See gh-413.")
+    def test_divide_err(self):
+        with np.errstate(divide='raise'):
+            with assert_raises(FloatingPointError):
+                np.array([1.]) / np.array([0.])
+
+            np.seterr(divide='ignore')
+            np.array([1.]) / np.array([0.])
+
+
+class TestFloatExceptions:
+    def assert_raises_fpe(self, fpeerr, flop, x, y):
+        ftype = type(x)
+        try:
+            flop(x, y)
+            assert_(False,
+                    f"Type {ftype} did not raise fpe error '{fpeerr}'.")
+        except FloatingPointError as exc:
+            assert_(str(exc).find(fpeerr) >= 0,
+                    f"Type {ftype} raised wrong fpe error '{exc}'.")
+
+    def assert_op_raises_fpe(self, fpeerr, flop, sc1, sc2):
+        # Check that fpe exception is raised.
+        #
+        # Given a floating operation `flop` and two scalar values, check that
+        # the operation raises the floating point exception specified by
+        # `fpeerr`. Tests all variants with 0-d array scalars as well.
+
+        self.assert_raises_fpe(fpeerr, flop, sc1, sc2)
+        self.assert_raises_fpe(fpeerr, flop, sc1[()], sc2)
+        self.assert_raises_fpe(fpeerr, flop, sc1, sc2[()])
+        self.assert_raises_fpe(fpeerr, flop, sc1[()], sc2[()])
+
+    # Test for all real and complex float types
+    @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support")
+    @pytest.mark.parametrize("typecode", np.typecodes["AllFloat"])
+    def test_floating_exceptions(self, typecode):
+        if 'bsd' in sys.platform and typecode in 'gG':
+            pytest.skip(reason="Fallback impl for (c)longdouble may not raise "
+                               "FPE errors as expected on BSD OSes, "
+                               "see gh-24876, gh-23379")
+
+        # Test basic arithmetic function errors
+        with np.errstate(all='raise'):
+            ftype = obj2sctype(typecode)
+            if np.dtype(ftype).kind == 'f':
+                # Get some extreme values for the type
+                fi = np.finfo(ftype)
+                ft_tiny = fi.tiny
+                ft_max = fi.max
+                ft_eps = fi.eps
+                underflow = 'underflow'
+                divbyzero = 'divide by zero'
+            else:
+                # 'c', complex, corresponding real dtype
+                rtype = type(ftype(0).real)
+                fi = np.finfo(rtype)
+                ft_tiny = ftype(fi.tiny)
+                ft_max = ftype(fi.max)
+                ft_eps = ftype(fi.eps)
+                # The complex types raise different exceptions
+                underflow = ''
+                divbyzero = ''
+            overflow = 'overflow'
+            invalid = 'invalid'
+
+            # The value of tiny for double double is NaN, so we need to
+            # pass the assert
+            if not np.isnan(ft_tiny):
+                self.assert_raises_fpe(underflow,
+                                    lambda a, b: a / b, ft_tiny, ft_max)
+                self.assert_raises_fpe(underflow,
+                                    lambda a, b: a * b, ft_tiny, ft_tiny)
+            self.assert_raises_fpe(overflow,
+                                   lambda a, b: a * b, ft_max, ftype(2))
+            self.assert_raises_fpe(overflow,
+                                   lambda a, b: a / b, ft_max, ftype(0.5))
+            self.assert_raises_fpe(overflow,
+                                   lambda a, b: a + b, ft_max, ft_max * ft_eps)
+            self.assert_raises_fpe(overflow,
+                                   lambda a, b: a - b, -ft_max, ft_max * ft_eps)
+            # On AIX, pow() with double does not raise the overflow exception,
+            # it returns inf. Long double is the same as double.
+            if sys.platform != 'aix' or typecode not in 'dDgG':
+                self.assert_raises_fpe(overflow,
+                                       np.power, ftype(2), ftype(2**fi.nexp))
+            self.assert_raises_fpe(divbyzero,
+                                   lambda a, b: a / b, ftype(1), ftype(0))
+            self.assert_raises_fpe(
+                invalid, lambda a, b: a / b, ftype(np.inf), ftype(np.inf)
+            )
+            self.assert_raises_fpe(invalid,
+                                   lambda a, b: a / b, ftype(0), ftype(0))
+            self.assert_raises_fpe(
+                invalid, lambda a, b: a - b, ftype(np.inf), ftype(np.inf)
+            )
+            self.assert_raises_fpe(
+                invalid, lambda a, b: a + b, ftype(np.inf), ftype(-np.inf)
+            )
+            self.assert_raises_fpe(invalid,
+                                   lambda a, b: a * b, ftype(0), ftype(np.inf))
+
+    @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support")
+    def test_warnings(self):
+        # test warning code path
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always")
+            with np.errstate(all="warn"):
+                np.divide(1, 0.)
+                assert_equal(len(w), 1)
+                assert_("divide by zero" in str(w[0].message))
+                np.array(1e300) * np.array(1e300)
+                assert_equal(len(w), 2)
+                assert_("overflow" in str(w[-1].message))
+                np.array(np.inf) - np.array(np.inf)
+                assert_equal(len(w), 3)
+                assert_("invalid value" in str(w[-1].message))
+                np.array(1e-300) * np.array(1e-300)
+                assert_equal(len(w), 4)
+                assert_("underflow" in str(w[-1].message))
+
+
+class TestTypes:
+    def check_promotion_cases(self, promote_func):
+        # tests that the scalars get coerced correctly.
+        b = np.bool(0)
+        i8, i16, i32, i64 = np.int8(0), np.int16(0), np.int32(0), np.int64(0)
+        u8, u16, u32, u64 = np.uint8(0), np.uint16(0), np.uint32(0), np.uint64(0)
+        f32, f64, fld = np.float32(0), np.float64(0), np.longdouble(0)
+        c64, c128, cld = np.complex64(0), np.complex128(0), np.clongdouble(0)
+
+        # coercion within the same kind
+        assert_equal(promote_func(i8, i16), np.dtype(np.int16))
+        assert_equal(promote_func(i32, i8), np.dtype(np.int32))
+        assert_equal(promote_func(i16, i64), np.dtype(np.int64))
+        assert_equal(promote_func(u8, u32), np.dtype(np.uint32))
+        assert_equal(promote_func(f32, f64), np.dtype(np.float64))
+        assert_equal(promote_func(fld, f32), np.dtype(np.longdouble))
+        assert_equal(promote_func(f64, fld), np.dtype(np.longdouble))
+        assert_equal(promote_func(c128, c64), np.dtype(np.complex128))
+        assert_equal(promote_func(cld, c128), np.dtype(np.clongdouble))
+        assert_equal(promote_func(c64, fld), np.dtype(np.clongdouble))
+
+        # coercion between kinds
+        assert_equal(promote_func(b, i32), np.dtype(np.int32))
+        assert_equal(promote_func(b, u8), np.dtype(np.uint8))
+        assert_equal(promote_func(i8, u8), np.dtype(np.int16))
+        assert_equal(promote_func(u8, i32), np.dtype(np.int32))
+        assert_equal(promote_func(i64, u32), np.dtype(np.int64))
+        assert_equal(promote_func(u64, i32), np.dtype(np.float64))
+        assert_equal(promote_func(i32, f32), np.dtype(np.float64))
+        assert_equal(promote_func(i64, f32), np.dtype(np.float64))
+        assert_equal(promote_func(f32, i16), np.dtype(np.float32))
+        assert_equal(promote_func(f32, u32), np.dtype(np.float64))
+        assert_equal(promote_func(f32, c64), np.dtype(np.complex64))
+        assert_equal(promote_func(c128, f32), np.dtype(np.complex128))
+        assert_equal(promote_func(cld, f64), np.dtype(np.clongdouble))
+
+        # coercion between scalars and 1-D arrays
+        assert_equal(promote_func(np.array([b]), i8), np.dtype(np.int8))
+        assert_equal(promote_func(np.array([b]), u8), np.dtype(np.uint8))
+        assert_equal(promote_func(np.array([b]), i32), np.dtype(np.int32))
+        assert_equal(promote_func(np.array([b]), u32), np.dtype(np.uint32))
+        assert_equal(promote_func(np.array([i8]), i64), np.dtype(np.int64))
+        # unsigned and signed unfortunately tend to promote to float64:
+        assert_equal(promote_func(u64, np.array([i32])), np.dtype(np.float64))
+        assert_equal(promote_func(i64, np.array([u32])), np.dtype(np.int64))
+        assert_equal(promote_func(np.array([u16]), i32), np.dtype(np.int32))
+        assert_equal(promote_func(np.int32(-1), np.array([u64])),
+                     np.dtype(np.float64))
+        assert_equal(promote_func(f64, np.array([f32])), np.dtype(np.float64))
+        assert_equal(promote_func(fld, np.array([f32])),
+                     np.dtype(np.longdouble))
+        assert_equal(promote_func(np.array([f64]), fld),
+                     np.dtype(np.longdouble))
+        assert_equal(promote_func(fld, np.array([c64])),
+                     np.dtype(np.clongdouble))
+        assert_equal(promote_func(c64, np.array([f64])),
+                     np.dtype(np.complex128))
+        assert_equal(promote_func(np.complex64(3j), np.array([f64])),
+                     np.dtype(np.complex128))
+        assert_equal(promote_func(np.array([f32]), c128),
+                     np.dtype(np.complex128))
+
+        # coercion between scalars and 1-D arrays, where
+        # the scalar has greater kind than the array
+        assert_equal(promote_func(np.array([b]), f64), np.dtype(np.float64))
+        assert_equal(promote_func(np.array([b]), i64), np.dtype(np.int64))
+        assert_equal(promote_func(np.array([b]), u64), np.dtype(np.uint64))
+        assert_equal(promote_func(np.array([i8]), f64), np.dtype(np.float64))
+        assert_equal(promote_func(np.array([u16]), f64), np.dtype(np.float64))
+
+    def test_coercion(self):
+        def res_type(a, b):
+            return np.add(a, b).dtype
+
+        self.check_promotion_cases(res_type)
+
+        # Use-case: float/complex scalar * bool/int8 array
+        #           shouldn't narrow the float/complex type
+        for a in [np.array([True, False]), np.array([-3, 12], dtype=np.int8)]:
+            b = 1.234 * a
+            assert_equal(b.dtype, np.dtype('f8'), f"array type {a.dtype}")
+            b = np.longdouble(1.234) * a
+            assert_equal(b.dtype, np.dtype(np.longdouble),
+                         f"array type {a.dtype}")
+            b = np.float64(1.234) * a
+            assert_equal(b.dtype, np.dtype('f8'), f"array type {a.dtype}")
+            b = np.float32(1.234) * a
+            assert_equal(b.dtype, np.dtype('f4'), f"array type {a.dtype}")
+            b = np.float16(1.234) * a
+            assert_equal(b.dtype, np.dtype('f2'), f"array type {a.dtype}")
+
+            b = 1.234j * a
+            assert_equal(b.dtype, np.dtype('c16'), f"array type {a.dtype}")
+            b = np.clongdouble(1.234j) * a
+            assert_equal(b.dtype, np.dtype(np.clongdouble),
+                         f"array type {a.dtype}")
+            b = np.complex128(1.234j) * a
+            assert_equal(b.dtype, np.dtype('c16'), f"array type {a.dtype}")
+            b = np.complex64(1.234j) * a
+            assert_equal(b.dtype, np.dtype('c8'), f"array type {a.dtype}")
+
+        # The following use-case is problematic, and to resolve its
+        # tricky side-effects requires more changes.
+        #
+        # Use-case: (1-t)*a, where 't' is a boolean array and 'a' is
+        #            a float32, shouldn't promote to float64
+        #
+        # a = np.array([1.0, 1.5], dtype=np.float32)
+        # t = np.array([True, False])
+        # b = t*a
+        # assert_equal(b, [1.0, 0.0])
+        # assert_equal(b.dtype, np.dtype('f4'))
+        # b = (1-t)*a
+        # assert_equal(b, [0.0, 1.5])
+        # assert_equal(b.dtype, np.dtype('f4'))
+        #
+        # Probably ~t (bitwise negation) is more proper to use here,
+        # but this is arguably less intuitive to understand at a glance, and
+        # would fail if 't' is actually an integer array instead of boolean:
+        #
+        # b = (~t)*a
+        # assert_equal(b, [0.0, 1.5])
+        # assert_equal(b.dtype, np.dtype('f4'))
+
+    def test_result_type(self):
+        self.check_promotion_cases(np.result_type)
+        assert_(np.result_type(None) == np.dtype(None))
+
+    def test_promote_types_endian(self):
+        # promote_types should always return native-endian types
+        assert_equal(np.promote_types('<i8', '<i8'), np.dtype('i8'))
+        assert_equal(np.promote_types('>i8', '>i8'), np.dtype('i8'))
+
+        assert_equal(np.promote_types('>i8', '>U16'), np.dtype('U21'))
+        assert_equal(np.promote_types('<i8', '<U16'), np.dtype('U21'))
+        assert_equal(np.promote_types('>U16', '>i8'), np.dtype('U21'))
+        assert_equal(np.promote_types('<U16', '<i8'), np.dtype('U21'))
+
+        assert_equal(np.promote_types('<S5', '<U8'), np.dtype('U8'))
+        assert_equal(np.promote_types('>S5', '>U8'), np.dtype('U8'))
+        assert_equal(np.promote_types('<U8', '<S5'), np.dtype('U8'))
+        assert_equal(np.promote_types('>U8', '>S5'), np.dtype('U8'))
+        assert_equal(np.promote_types('<U5', '<U8'), np.dtype('U8'))
+        assert_equal(np.promote_types('>U8', '>U5'), np.dtype('U8'))
+
+        assert_equal(np.promote_types('<M8', '<M8'), np.dtype('M8'))
+        assert_equal(np.promote_types('>M8', '>M8'), np.dtype('M8'))
+        assert_equal(np.promote_types('<m8', '<m8'), np.dtype('m8'))
+        assert_equal(np.promote_types('>m8', '>m8'), np.dtype('m8'))
+
+    def test_can_cast_and_promote_usertypes(self):
+        # The rational type defines safe casting for signed integers,
+        # boolean. Rational itself *does* cast safely to double.
+        # (rational does not actually cast to all signed integers, e.g.
+        # int64 can be both long and longlong and it registers only the first)
+        valid_types = ["int8", "int16", "int32", "int64", "bool"]
+        invalid_types = "BHILQP" + "FDG" + "mM" + "f" + "V"
+
+        rational_dt = np.dtype(rational)
+        for numpy_dtype in valid_types:
+            numpy_dtype = np.dtype(numpy_dtype)
+            assert np.can_cast(numpy_dtype, rational_dt)
+            assert np.promote_types(numpy_dtype, rational_dt) is rational_dt
+
+        for numpy_dtype in invalid_types:
+            numpy_dtype = np.dtype(numpy_dtype)
+            assert not np.can_cast(numpy_dtype, rational_dt)
+            with pytest.raises(TypeError):
+                np.promote_types(numpy_dtype, rational_dt)
+
+        double_dt = np.dtype("double")
+        assert np.can_cast(rational_dt, double_dt)
+        assert np.promote_types(double_dt, rational_dt) is double_dt
+
+    @pytest.mark.parametrize("swap", ["", "swap"])
+    @pytest.mark.parametrize("string_dtype", ["U", "S"])
+    def test_promote_types_strings(self, swap, string_dtype):
+        if swap == "swap":
+            promote_types = lambda a, b: np.promote_types(b, a)
+        else:
+            promote_types = np.promote_types
+
+        S = string_dtype
+
+        # Promote numeric with unsized string:
+        assert_equal(promote_types('bool', S), np.dtype(S + '5'))
+        assert_equal(promote_types('b', S), np.dtype(S + '4'))
+        assert_equal(promote_types('u1', S), np.dtype(S + '3'))
+        assert_equal(promote_types('u2', S), np.dtype(S + '5'))
+        assert_equal(promote_types('u4', S), np.dtype(S + '10'))
+        assert_equal(promote_types('u8', S), np.dtype(S + '20'))
+        assert_equal(promote_types('i1', S), np.dtype(S + '4'))
+        assert_equal(promote_types('i2', S), np.dtype(S + '6'))
+        assert_equal(promote_types('i4', S), np.dtype(S + '11'))
+        assert_equal(promote_types('i8', S), np.dtype(S + '21'))
+        # Promote numeric with sized string:
+        assert_equal(promote_types('bool', S + '1'), np.dtype(S + '5'))
+        assert_equal(promote_types('bool', S + '30'), np.dtype(S + '30'))
+        assert_equal(promote_types('b', S + '1'), np.dtype(S + '4'))
+        assert_equal(promote_types('b', S + '30'), np.dtype(S + '30'))
+        assert_equal(promote_types('u1', S + '1'), np.dtype(S + '3'))
+        assert_equal(promote_types('u1', S + '30'), np.dtype(S + '30'))
+        assert_equal(promote_types('u2', S + '1'), np.dtype(S + '5'))
+        assert_equal(promote_types('u2', S + '30'), np.dtype(S + '30'))
+        assert_equal(promote_types('u4', S + '1'), np.dtype(S + '10'))
+        assert_equal(promote_types('u4', S + '30'), np.dtype(S + '30'))
+        assert_equal(promote_types('u8', S + '1'), np.dtype(S + '20'))
+        assert_equal(promote_types('u8', S + '30'), np.dtype(S + '30'))
+        # Promote with object:
+        assert_equal(promote_types('O', S + '30'), np.dtype('O'))
+
+    @pytest.mark.parametrize(["dtype1", "dtype2"],
+            [[np.dtype("V6"), np.dtype("V10")],  # mismatch shape
+             # Mismatching names:
+             [np.dtype([("name1", "i8")]), np.dtype([("name2", "i8")])],
+            ])
+    def test_invalid_void_promotion(self, dtype1, dtype2):
+        with pytest.raises(TypeError):
+            np.promote_types(dtype1, dtype2)
+
+    @pytest.mark.parametrize(["dtype1", "dtype2"],
+            [[np.dtype("V10"), np.dtype("V10")],
+             [np.dtype([("name1", "i8")]),
+              np.dtype([("name1", np.dtype("i8").newbyteorder())])],
+             [np.dtype("i8,i8"), np.dtype("i8,>i8")],
+             [np.dtype("i8,i8"), np.dtype("i4,i4")],
+            ])
+    def test_valid_void_promotion(self, dtype1, dtype2):
+        assert np.promote_types(dtype1, dtype2) == dtype1
+
+    @pytest.mark.parametrize("dtype",
+            list(np.typecodes["All"]) +
+            ["i,i", "10i", "S3", "S100", "U3", "U100", rational])
+    def test_promote_identical_types_metadata(self, dtype):
+        # The same type passed in twice to promote types always
+        # preserves metadata
+        metadata = {1: 1}
+        dtype = np.dtype(dtype, metadata=metadata)
+
+        res = np.promote_types(dtype, dtype)
+        assert res.metadata == dtype.metadata
+
+        # byte-swapping preserves and makes the dtype native:
+        dtype = dtype.newbyteorder()
+        if dtype.isnative:
+            # The type does not have byte swapping
+            return
+
+        res = np.promote_types(dtype, dtype)
+
+        # Metadata is (currently) generally lost on byte-swapping (except for
+        # unicode.
+        if dtype.char != "U":
+            assert res.metadata is None
+        else:
+            assert res.metadata == metadata
+        assert res.isnative
+
+    @pytest.mark.slow
+    @pytest.mark.filterwarnings('ignore:Promotion of numbers:FutureWarning')
+    @pytest.mark.parametrize(["dtype1", "dtype2"],
+            itertools.product(
+                list(np.typecodes["All"]) +
+                ["i,i", "S3", "S100", "U3", "U100", rational],
+                repeat=2))
+    def test_promote_types_metadata(self, dtype1, dtype2):
+        """Metadata handling in promotion does not appear formalized
+        right now in NumPy. This test should thus be considered to
+        document behaviour, rather than test the correct definition of it.
+
+        This test is very ugly, it was useful for rewriting part of the
+        promotion, but probably should eventually be replaced/deleted
+        (i.e. when metadata handling in promotion is better defined).
+        """
+        metadata1 = {1: 1}
+        metadata2 = {2: 2}
+        dtype1 = np.dtype(dtype1, metadata=metadata1)
+        dtype2 = np.dtype(dtype2, metadata=metadata2)
+
+        try:
+            res = np.promote_types(dtype1, dtype2)
+        except TypeError:
+            # Promotion failed, this test only checks metadata
+            return
+
+        if res.char not in "USV" or res.names is not None or res.shape != ():
+            # All except string dtypes (and unstructured void) lose metadata
+            # on promotion (unless both dtypes are identical).
+            # At some point structured ones did not, but were restrictive.
+            assert res.metadata is None
+        elif res == dtype1:
+            # If one result is the result, it is usually returned unchanged:
+            assert res is dtype1
+        elif res == dtype2:
+            # dtype1 may have been cast to the same type/kind as dtype2.
+            # If the resulting dtype is identical we currently pick the cast
+            # version of dtype1, which lost the metadata:
+            if np.promote_types(dtype1, dtype2.kind) == dtype2:
+                res.metadata is None
+            else:
+                res.metadata == metadata2
+        else:
+            assert res.metadata is None
+
+        # Try again for byteswapped version
+        dtype1 = dtype1.newbyteorder()
+        assert dtype1.metadata == metadata1
+        res_bs = np.promote_types(dtype1, dtype2)
+        assert res_bs == res
+        assert res_bs.metadata == res.metadata
+
+    def test_can_cast(self):
+        assert_(np.can_cast(np.int32, np.int64))
+        assert_(np.can_cast(np.float64, complex))
+        assert_(not np.can_cast(complex, float))
+
+        assert_(np.can_cast('i8', 'f8'))
+        assert_(not np.can_cast('i8', 'f4'))
+        assert_(np.can_cast('i4', 'S11'))
+
+        assert_(np.can_cast('i8', 'i8', 'no'))
+        assert_(not np.can_cast('<i8', '>i8', 'no'))
+
+        assert_(np.can_cast('<i8', '>i8', 'equiv'))
+        assert_(not np.can_cast('<i4', '>i8', 'equiv'))
+
+        assert_(np.can_cast('<i4', '>i8', 'safe'))
+        assert_(not np.can_cast('<i8', '>i4', 'safe'))
+
+        assert_(np.can_cast('<i8', '>i4', 'same_kind'))
+        assert_(not np.can_cast('<i8', '>u4', 'same_kind'))
+
+        assert_(np.can_cast('<i8', '>u4', 'unsafe'))
+
+        assert_(np.can_cast('bool', 'S5'))
+        assert_(not np.can_cast('bool', 'S4'))
+
+        assert_(np.can_cast('b', 'S4'))
+        assert_(not np.can_cast('b', 'S3'))
+
+        assert_(np.can_cast('u1', 'S3'))
+        assert_(not np.can_cast('u1', 'S2'))
+        assert_(np.can_cast('u2', 'S5'))
+        assert_(not np.can_cast('u2', 'S4'))
+        assert_(np.can_cast('u4', 'S10'))
+        assert_(not np.can_cast('u4', 'S9'))
+        assert_(np.can_cast('u8', 'S20'))
+        assert_(not np.can_cast('u8', 'S19'))
+
+        assert_(np.can_cast('i1', 'S4'))
+        assert_(not np.can_cast('i1', 'S3'))
+        assert_(np.can_cast('i2', 'S6'))
+        assert_(not np.can_cast('i2', 'S5'))
+        assert_(np.can_cast('i4', 'S11'))
+        assert_(not np.can_cast('i4', 'S10'))
+        assert_(np.can_cast('i8', 'S21'))
+        assert_(not np.can_cast('i8', 'S20'))
+
+        assert_(np.can_cast('bool', 'S5'))
+        assert_(not np.can_cast('bool', 'S4'))
+
+        assert_(np.can_cast('b', 'U4'))
+        assert_(not np.can_cast('b', 'U3'))
+
+        assert_(np.can_cast('u1', 'U3'))
+        assert_(not np.can_cast('u1', 'U2'))
+        assert_(np.can_cast('u2', 'U5'))
+        assert_(not np.can_cast('u2', 'U4'))
+        assert_(np.can_cast('u4', 'U10'))
+        assert_(not np.can_cast('u4', 'U9'))
+        assert_(np.can_cast('u8', 'U20'))
+        assert_(not np.can_cast('u8', 'U19'))
+
+        assert_(np.can_cast('i1', 'U4'))
+        assert_(not np.can_cast('i1', 'U3'))
+        assert_(np.can_cast('i2', 'U6'))
+        assert_(not np.can_cast('i2', 'U5'))
+        assert_(np.can_cast('i4', 'U11'))
+        assert_(not np.can_cast('i4', 'U10'))
+        assert_(np.can_cast('i8', 'U21'))
+        assert_(not np.can_cast('i8', 'U20'))
+
+        assert_raises(TypeError, np.can_cast, 'i4', None)
+        assert_raises(TypeError, np.can_cast, None, 'i4')
+
+        # Also test keyword arguments
+        assert_(np.can_cast(from_=np.int32, to=np.int64))
+
+    def test_can_cast_simple_to_structured(self):
+        # Non-structured can only be cast to structured in 'unsafe' mode.
+        assert_(not np.can_cast('i4', 'i4,i4'))
+        assert_(not np.can_cast('i4', 'i4,i2'))
+        assert_(np.can_cast('i4', 'i4,i4', casting='unsafe'))
+        assert_(np.can_cast('i4', 'i4,i2', casting='unsafe'))
+        # Even if there is just a single field which is OK.
+        assert_(not np.can_cast('i2', [('f1', 'i4')]))
+        assert_(not np.can_cast('i2', [('f1', 'i4')], casting='same_kind'))
+        assert_(np.can_cast('i2', [('f1', 'i4')], casting='unsafe'))
+        # It should be the same for recursive structured or subarrays.
+        assert_(not np.can_cast('i2', [('f1', 'i4,i4')]))
+        assert_(np.can_cast('i2', [('f1', 'i4,i4')], casting='unsafe'))
+        assert_(not np.can_cast('i2', [('f1', '(2,3)i4')]))
+        assert_(np.can_cast('i2', [('f1', '(2,3)i4')], casting='unsafe'))
+
+    def test_can_cast_structured_to_simple(self):
+        # Need unsafe casting for structured to simple.
+        assert_(not np.can_cast([('f1', 'i4')], 'i4'))
+        assert_(np.can_cast([('f1', 'i4')], 'i4', casting='unsafe'))
+        assert_(np.can_cast([('f1', 'i4')], 'i2', casting='unsafe'))
+        # Since it is unclear what is being cast, multiple fields to
+        # single should not work even for unsafe casting.
+        assert_(not np.can_cast('i4,i4', 'i4', casting='unsafe'))
+        # But a single field inside a single field is OK.
+        assert_(not np.can_cast([('f1', [('x', 'i4')])], 'i4'))
+        assert_(np.can_cast([('f1', [('x', 'i4')])], 'i4', casting='unsafe'))
+        # And a subarray is fine too - it will just take the first element
+        # (arguably not very consistently; might also take the first field).
+        assert_(not np.can_cast([('f0', '(3,)i4')], 'i4'))
+        assert_(np.can_cast([('f0', '(3,)i4')], 'i4', casting='unsafe'))
+        # But a structured subarray with multiple fields should fail.
+        assert_(not np.can_cast([('f0', ('i4,i4'), (2,))], 'i4',
+                                casting='unsafe'))
+
+    def test_can_cast_values(self):
+        # With NumPy 2 and NEP 50, can_cast errors on Python scalars.  We could
+        # define this as (usually safe) at some point, and already do so
+        # in `copyto` and ufuncs (but there an error is raised if the integer
+        # is out of bounds and a warning for out-of-bound floats).
+        # Raises even for unsafe, previously checked within range (for floats
+        # that was approximately whether it would overflow to inf).
+        with pytest.raises(TypeError):
+            np.can_cast(4, "int8", casting="unsafe")
+
+        with pytest.raises(TypeError):
+            np.can_cast(4.0, "float64", casting="unsafe")
+
+        with pytest.raises(TypeError):
+            np.can_cast(4j, "complex128", casting="unsafe")
+
+    @pytest.mark.parametrize("dtype",
+            list("?bhilqBHILQefdgFDG") + [rational])
+    def test_can_cast_scalars(self, dtype):
+        # Basic test to ensure that scalars are supported in can-cast
+        # (does not check behavior exhaustively).
+        dtype = np.dtype(dtype)
+        scalar = dtype.type(0)
+
+        assert np.can_cast(scalar, "int64") == np.can_cast(dtype, "int64")
+        assert np.can_cast(scalar, "float32", casting="unsafe")
+
+
+# Custom exception class to test exception propagation in fromiter
+class NIterError(Exception):
+    pass
+
+
+class TestFromiter:
+    def makegen(self):
+        return (x**2 for x in range(24))
+
+    def test_types(self):
+        ai32 = np.fromiter(self.makegen(), np.int32)
+        ai64 = np.fromiter(self.makegen(), np.int64)
+        af = np.fromiter(self.makegen(), float)
+        assert_(ai32.dtype == np.dtype(np.int32))
+        assert_(ai64.dtype == np.dtype(np.int64))
+        assert_(af.dtype == np.dtype(float))
+
+    def test_lengths(self):
+        expected = np.array(list(self.makegen()))
+        a = np.fromiter(self.makegen(), int)
+        a20 = np.fromiter(self.makegen(), int, 20)
+        assert_(len(a) == len(expected))
+        assert_(len(a20) == 20)
+        assert_raises(ValueError, np.fromiter,
+                          self.makegen(), int, len(expected) + 10)
+
+    def test_values(self):
+        expected = np.array(list(self.makegen()))
+        a = np.fromiter(self.makegen(), int)
+        a20 = np.fromiter(self.makegen(), int, 20)
+        assert_(np.all(a == expected, axis=0))
+        assert_(np.all(a20 == expected[:20], axis=0))
+
+    def load_data(self, n, eindex):
+        # Utility method for the issue 2592 tests.
+        # Raise an exception at the desired index in the iterator.
+        for e in range(n):
+            if e == eindex:
+                raise NIterError(f'error at index {eindex}')
+            yield e
+
+    @pytest.mark.parametrize("dtype", [int, object])
+    @pytest.mark.parametrize(["count", "error_index"], [(10, 5), (10, 9)])
+    def test_2592(self, count, error_index, dtype):
+        # Test iteration exceptions are correctly raised. The data/generator
+        # has `count` elements but errors at `error_index`
+        iterable = self.load_data(count, error_index)
+        with pytest.raises(NIterError):
+            np.fromiter(iterable, dtype=dtype, count=count)
+
+    @pytest.mark.parametrize("dtype", ["S", "S0", "V0", "U0"])
+    def test_empty_not_structured(self, dtype):
+        # Note, "S0" could be allowed at some point, so long "S" (without
+        # any length) is rejected.
+        with pytest.raises(ValueError, match="Must specify length"):
+            np.fromiter([], dtype=dtype)
+
+    @pytest.mark.parametrize(["dtype", "data"],
+            [("d", [1, 2, 3, 4, 5, 6, 7, 8, 9]),
+             ("O", [1, 2, 3, 4, 5, 6, 7, 8, 9]),
+             ("i,O", [(1, 2), (5, 4), (2, 3), (9, 8), (6, 7)]),
+             # subarray dtypes (important because their dimensions end up
+             # in the result arrays dimension:
+             ("2i", [(1, 2), (5, 4), (2, 3), (9, 8), (6, 7)]),
+             (np.dtype(("O", (2, 3))),
+              [((1, 2, 3), (3, 4, 5)), ((3, 2, 1), (5, 4, 3))])])
+    @pytest.mark.parametrize("length_hint", [0, 1])
+    def test_growth_and_complicated_dtypes(self, dtype, data, length_hint):
+        dtype = np.dtype(dtype)
+
+        data = data * 100  # make sure we realloc a bit
+
+        class MyIter:
+            # Class/example from gh-15789
+            def __length_hint__(self):
+                # only required to be an estimate, this is legal
+                return length_hint  # 0 or 1
+
+            def __iter__(self):
+                return iter(data)
+
+        res = np.fromiter(MyIter(), dtype=dtype)
+        expected = np.array(data, dtype=dtype)
+
+        assert_array_equal(res, expected)
+
+    def test_empty_result(self):
+        class MyIter:
+            def __length_hint__(self):
+                return 10
+
+            def __iter__(self):
+                return iter([])  # actual iterator is empty.
+
+        res = np.fromiter(MyIter(), dtype="d")
+        assert res.shape == (0,)
+        assert res.dtype == "d"
+
+    def test_too_few_items(self):
+        msg = "iterator too short: Expected 10 but iterator had only 3 items."
+        with pytest.raises(ValueError, match=msg):
+            np.fromiter([1, 2, 3], count=10, dtype=int)
+
+    def test_failed_itemsetting(self):
+        with pytest.raises(TypeError):
+            np.fromiter([1, None, 3], dtype=int)
+
+        # The following manages to hit somewhat trickier code paths:
+        iterable = ((2, 3, 4) for i in range(5))
+        with pytest.raises(ValueError):
+            np.fromiter(iterable, dtype=np.dtype((int, 2)))
+
+
+class TestNonzero:
+    def test_nonzero_trivial(self):
+        assert_equal(np.count_nonzero(np.array([])), 0)
+        assert_equal(np.count_nonzero(np.array([], dtype='?')), 0)
+        assert_equal(np.nonzero(np.array([])), ([],))
+
+        assert_equal(np.count_nonzero(np.array([0])), 0)
+        assert_equal(np.count_nonzero(np.array([0], dtype='?')), 0)
+        assert_equal(np.nonzero(np.array([0])), ([],))
+
+        assert_equal(np.count_nonzero(np.array([1])), 1)
+        assert_equal(np.count_nonzero(np.array([1], dtype='?')), 1)
+        assert_equal(np.nonzero(np.array([1])), ([0],))
+
+    def test_nonzero_zerodim(self):
+        err_msg = "Calling nonzero on 0d arrays is not allowed"
+        with assert_raises_regex(ValueError, err_msg):
+            np.nonzero(np.array(0))
+        with assert_raises_regex(ValueError, err_msg):
+            np.array(1).nonzero()
+
+    def test_nonzero_onedim(self):
+        x = np.array([1, 0, 2, -1, 0, 0, 8])
+        assert_equal(np.count_nonzero(x), 4)
+        assert_equal(np.count_nonzero(x), 4)
+        assert_equal(np.nonzero(x), ([0, 2, 3, 6],))
+
+        # x = np.array([(1, 2), (0, 0), (1, 1), (-1, 3), (0, 7)],
+        #              dtype=[('a', 'i4'), ('b', 'i2')])
+        x = np.array(
+            [(1, 2, -5, -3), (0, 0, 2, 7), (1, 1, 0, 1), (-1, 3, 1, 0), (0, 7, 0, 4)],
+            dtype=[('a', 'i4'), ('b', 'i2'), ('c', 'i1'), ('d', 'i8')]
+        )
+        assert_equal(np.count_nonzero(x['a']), 3)
+        assert_equal(np.count_nonzero(x['b']), 4)
+        assert_equal(np.count_nonzero(x['c']), 3)
+        assert_equal(np.count_nonzero(x['d']), 4)
+        assert_equal(np.nonzero(x['a']), ([0, 2, 3],))
+        assert_equal(np.nonzero(x['b']), ([0, 2, 3, 4],))
+
+    def test_nonzero_twodim(self):
+        x = np.array([[0, 1, 0], [2, 0, 3]])
+        assert_equal(np.count_nonzero(x.astype('i1')), 3)
+        assert_equal(np.count_nonzero(x.astype('i2')), 3)
+        assert_equal(np.count_nonzero(x.astype('i4')), 3)
+        assert_equal(np.count_nonzero(x.astype('i8')), 3)
+        assert_equal(np.nonzero(x), ([0, 1, 1], [1, 0, 2]))
+
+        x = np.eye(3)
+        assert_equal(np.count_nonzero(x.astype('i1')), 3)
+        assert_equal(np.count_nonzero(x.astype('i2')), 3)
+        assert_equal(np.count_nonzero(x.astype('i4')), 3)
+        assert_equal(np.count_nonzero(x.astype('i8')), 3)
+        assert_equal(np.nonzero(x), ([0, 1, 2], [0, 1, 2]))
+
+        x = np.array([[(0, 1), (0, 0), (1, 11)],
+                   [(1, 1), (1, 0), (0, 0)],
+                   [(0, 0), (1, 5), (0, 1)]], dtype=[('a', 'f4'), ('b', 'u1')])
+        assert_equal(np.count_nonzero(x['a']), 4)
+        assert_equal(np.count_nonzero(x['b']), 5)
+        assert_equal(np.nonzero(x['a']), ([0, 1, 1, 2], [2, 0, 1, 1]))
+        assert_equal(np.nonzero(x['b']), ([0, 0, 1, 2, 2], [0, 2, 0, 1, 2]))
+
+        assert_(not x['a'].T.flags.aligned)
+        assert_equal(np.count_nonzero(x['a'].T), 4)
+        assert_equal(np.count_nonzero(x['b'].T), 5)
+        assert_equal(np.nonzero(x['a'].T), ([0, 1, 1, 2], [1, 1, 2, 0]))
+        assert_equal(np.nonzero(x['b'].T), ([0, 0, 1, 2, 2], [0, 1, 2, 0, 2]))
+
+    def test_sparse(self):
+        # test special sparse condition boolean code path
+        for i in range(20):
+            c = np.zeros(200, dtype=bool)
+            c[i::20] = True
+            assert_equal(np.nonzero(c)[0], np.arange(i, 200 + i, 20))
+
+            c = np.zeros(400, dtype=bool)
+            c[10 + i:20 + i] = True
+            c[20 + i * 2] = True
+            assert_equal(np.nonzero(c)[0],
+                         np.concatenate((np.arange(10 + i, 20 + i), [20 + i * 2])))
+
+    @pytest.mark.parametrize('dtype', [np.float32, np.float64])
+    def test_nonzero_float_dtypes(self, dtype):
+        rng = np.random.default_rng(seed=10)
+        x = ((2**33) * rng.normal(size=100)).astype(dtype)
+        x[rng.choice(50, size=100)] = 0
+        idxs = np.nonzero(x)[0]
+        assert_equal(np.array_equal(np.where(x != 0)[0], idxs), True)
+
+    @pytest.mark.parametrize('dtype', [bool, np.int8, np.int16, np.int32, np.int64,
+                                       np.uint8, np.uint16, np.uint32, np.uint64])
+    def test_nonzero_integer_dtypes(self, dtype):
+        rng = np.random.default_rng(seed=10)
+        x = rng.integers(0, 255, size=100).astype(dtype)
+        x[rng.choice(50, size=100)] = 0
+        idxs = np.nonzero(x)[0]
+        assert_equal(np.array_equal(np.where(x != 0)[0], idxs), True)
+
+    def test_return_type(self):
+        class C(np.ndarray):
+            pass
+
+        for view in (C, np.ndarray):
+            for nd in range(1, 4):
+                shape = tuple(range(2, 2 + nd))
+                x = np.arange(np.prod(shape)).reshape(shape).view(view)
+                for nzx in (np.nonzero(x), x.nonzero()):
+                    for nzx_i in nzx:
+                        assert_(type(nzx_i) is np.ndarray)
+                        assert_(nzx_i.flags.writeable)
+
+    def test_count_nonzero_axis(self):
+        # Basic check of functionality
+        m = np.array([[0, 1, 7, 0, 0], [3, 0, 0, 2, 19]])
+
+        expected = np.array([1, 1, 1, 1, 1])
+        assert_equal(np.count_nonzero(m, axis=0), expected)
+
+        expected = np.array([2, 3])
+        assert_equal(np.count_nonzero(m, axis=1), expected)
+
+        assert_raises(ValueError, np.count_nonzero, m, axis=(1, 1))
+        assert_raises(TypeError, np.count_nonzero, m, axis='foo')
+        assert_raises(AxisError, np.count_nonzero, m, axis=3)
+        assert_raises(TypeError, np.count_nonzero,
+                      m, axis=np.array([[1], [2]]))
+
+    def test_count_nonzero_axis_all_dtypes(self):
+        # More thorough test that the axis argument is respected
+        # for all dtypes and responds correctly when presented with
+        # either integer or tuple arguments for axis
+        msg = "Mismatch for dtype: %s"
+
+        def assert_equal_w_dt(a, b, err_msg):
+            assert_equal(a.dtype, b.dtype, err_msg=err_msg)
+            assert_equal(a, b, err_msg=err_msg)
+
+        for dt in np.typecodes['All']:
+            err_msg = msg % (np.dtype(dt).name,)
+
+            if dt != 'V':
+                if dt != 'M':
+                    m = np.zeros((3, 3), dtype=dt)
+                    n = np.ones(1, dtype=dt)
+
+                    m[0, 0] = n[0]
+                    m[1, 0] = n[0]
+
+                else:  # np.zeros doesn't work for np.datetime64
+                    m = np.array(['1970-01-01'] * 9)
+                    m = m.reshape((3, 3))
+
+                    m[0, 0] = '1970-01-12'
+                    m[1, 0] = '1970-01-12'
+                    m = m.astype(dt)
+
+                expected = np.array([2, 0, 0], dtype=np.intp)
+                assert_equal_w_dt(np.count_nonzero(m, axis=0),
+                                  expected, err_msg=err_msg)
+
+                expected = np.array([1, 1, 0], dtype=np.intp)
+                assert_equal_w_dt(np.count_nonzero(m, axis=1),
+                                  expected, err_msg=err_msg)
+
+                expected = np.array(2)
+                assert_equal(np.count_nonzero(m, axis=(0, 1)),
+                             expected, err_msg=err_msg)
+                assert_equal(np.count_nonzero(m, axis=None),
+                             expected, err_msg=err_msg)
+                assert_equal(np.count_nonzero(m),
+                             expected, err_msg=err_msg)
+
+            if dt == 'V':
+                # There are no 'nonzero' objects for np.void, so the testing
+                # setup is slightly different for this dtype
+                m = np.array([np.void(1)] * 6).reshape((2, 3))
+
+                expected = np.array([0, 0, 0], dtype=np.intp)
+                assert_equal_w_dt(np.count_nonzero(m, axis=0),
+                                  expected, err_msg=err_msg)
+
+                expected = np.array([0, 0], dtype=np.intp)
+                assert_equal_w_dt(np.count_nonzero(m, axis=1),
+                                  expected, err_msg=err_msg)
+
+                expected = np.array(0)
+                assert_equal(np.count_nonzero(m, axis=(0, 1)),
+                             expected, err_msg=err_msg)
+                assert_equal(np.count_nonzero(m, axis=None),
+                             expected, err_msg=err_msg)
+                assert_equal(np.count_nonzero(m),
+                             expected, err_msg=err_msg)
+
+    def test_count_nonzero_axis_consistent(self):
+        # Check that the axis behaviour for valid axes in
+        # non-special cases is consistent (and therefore
+        # correct) by checking it against an integer array
+        # that is then casted to the generic object dtype
+        from itertools import combinations, permutations
+
+        axis = (0, 1, 2, 3)
+        size = (5, 5, 5, 5)
+        msg = "Mismatch for axis: %s"
+
+        rng = np.random.RandomState(1234)
+        m = rng.randint(-100, 100, size=size)
+        n = m.astype(object)
+
+        for length in range(len(axis)):
+            for combo in combinations(axis, length):
+                for perm in permutations(combo):
+                    assert_equal(
+                        np.count_nonzero(m, axis=perm),
+                        np.count_nonzero(n, axis=perm),
+                        err_msg=msg % (perm,))
+
+    def test_countnonzero_axis_empty(self):
+        a = np.array([[0, 0, 1], [1, 0, 1]])
+        assert_equal(np.count_nonzero(a, axis=()), a.astype(bool))
+
+    def test_countnonzero_keepdims(self):
+        a = np.array([[0, 0, 1, 0],
+                      [0, 3, 5, 0],
+                      [7, 9, 2, 0]])
+        assert_equal(np.count_nonzero(a, axis=0, keepdims=True),
+                     [[1, 2, 3, 0]])
+        assert_equal(np.count_nonzero(a, axis=1, keepdims=True),
+                     [[1], [2], [3]])
+        assert_equal(np.count_nonzero(a, keepdims=True),
+                     [[6]])
+
+    def test_array_method(self):
+        # Tests that the array method
+        # call to nonzero works
+        m = np.array([[1, 0, 0], [4, 0, 6]])
+        tgt = [[0, 1, 1], [0, 0, 2]]
+
+        assert_equal(m.nonzero(), tgt)
+
+    def test_nonzero_invalid_object(self):
+        # gh-9295
+        a = np.array([np.array([1, 2]), 3], dtype=object)
+        assert_raises(ValueError, np.nonzero, a)
+
+        class BoolErrors:
+            def __bool__(self):
+                raise ValueError("Not allowed")
+
+        assert_raises(ValueError, np.nonzero, np.array([BoolErrors()]))
+
+    def test_nonzero_sideeffect_safety(self):
+        # gh-13631
+        class FalseThenTrue:
+            _val = False
+
+            def __bool__(self):
+                try:
+                    return self._val
+                finally:
+                    self._val = True
+
+        class TrueThenFalse:
+            _val = True
+
+            def __bool__(self):
+                try:
+                    return self._val
+                finally:
+                    self._val = False
+
+        # result grows on the second pass
+        a = np.array([True, FalseThenTrue()])
+        assert_raises(RuntimeError, np.nonzero, a)
+
+        a = np.array([[True], [FalseThenTrue()]])
+        assert_raises(RuntimeError, np.nonzero, a)
+
+        # result shrinks on the second pass
+        a = np.array([False, TrueThenFalse()])
+        assert_raises(RuntimeError, np.nonzero, a)
+
+        a = np.array([[False], [TrueThenFalse()]])
+        assert_raises(RuntimeError, np.nonzero, a)
+
+    def test_nonzero_sideffects_structured_void(self):
+        # Checks that structured void does not mutate alignment flag of
+        # original array.
+        arr = np.zeros(5, dtype="i1,i8,i8")  # `ones` may short-circuit
+        assert arr.flags.aligned  # structs are considered "aligned"
+        assert not arr["f2"].flags.aligned
+        # make sure that nonzero/count_nonzero do not flip the flag:
+        np.nonzero(arr)
+        assert arr.flags.aligned
+        np.count_nonzero(arr)
+        assert arr.flags.aligned
+
+    def test_nonzero_exception_safe(self):
+        # gh-13930
+
+        class ThrowsAfter:
+            def __init__(self, iters):
+                self.iters_left = iters
+
+            def __bool__(self):
+                if self.iters_left == 0:
+                    raise ValueError("called `iters` times")
+
+                self.iters_left -= 1
+                return True
+
+        """
+        Test that a ValueError is raised instead of a SystemError
+
+        If the __bool__ function is called after the error state is set,
+        Python (cpython) will raise a SystemError.
+        """
+
+        # assert that an exception in first pass is handled correctly
+        a = np.array([ThrowsAfter(5)] * 10)
+        assert_raises(ValueError, np.nonzero, a)
+
+        # raise exception in second pass for 1-dimensional loop
+        a = np.array([ThrowsAfter(15)] * 10)
+        assert_raises(ValueError, np.nonzero, a)
+
+        # raise exception in second pass for n-dimensional loop
+        a = np.array([[ThrowsAfter(15)]] * 10)
+        assert_raises(ValueError, np.nonzero, a)
+
+    def test_nonzero_byteorder(self):
+        values = [0., -0., 1, float('nan'), 0, 1,
+                  np.float16(0), np.float16(12.3)]
+        expected_values = [0, 0, 1, 1, 0, 1, 0, 1]
+
+        for value, expected in zip(values, expected_values):
+            A = np.array([value])
+            A_byteswapped = (A.view(A.dtype.newbyteorder()).byteswap()).copy()
+
+            assert np.count_nonzero(A) == expected
+            assert np.count_nonzero(A_byteswapped) == expected
+
+    def test_count_nonzero_non_aligned_array(self):
+        # gh-27523
+        b = np.zeros(64 + 1, dtype=np.int8)[1:]
+        b = b.view(int)
+        b[:] = np.arange(b.size)
+        b[::2] = 0
+        assert b.flags.aligned is False
+        assert np.count_nonzero(b) == b.size / 2
+
+        b = np.zeros(64 + 1, dtype=np.float16)[1:]
+        b = b.view(float)
+        b[:] = np.arange(b.size)
+        b[::2] = 0
+        assert b.flags.aligned is False
+        assert np.count_nonzero(b) == b.size / 2
+
+
+class TestIndex:
+    def test_boolean(self):
+        a = rand(3, 5, 8)
+        V = rand(5, 8)
+        g1 = randint(0, 5, size=15)
+        g2 = randint(0, 8, size=15)
+        V[g1, g2] = -V[g1, g2]
+        assert_(
+            (np.array([a[0][V > 0], a[1][V > 0], a[2][V > 0]]) == a[:, V > 0]).all()
+        )
+
+    def test_boolean_edgecase(self):
+        a = np.array([], dtype='int32')
+        b = np.array([], dtype='bool')
+        c = a[b]
+        assert_equal(c, [])
+        assert_equal(c.dtype, np.dtype('int32'))
+
+
+class TestBinaryRepr:
+    def test_zero(self):
+        assert_equal(np.binary_repr(0), '0')
+
+    def test_positive(self):
+        assert_equal(np.binary_repr(10), '1010')
+        assert_equal(np.binary_repr(12522),
+                     '11000011101010')
+        assert_equal(np.binary_repr(10736848),
+                     '101000111101010011010000')
+
+    def test_negative(self):
+        assert_equal(np.binary_repr(-1), '-1')
+        assert_equal(np.binary_repr(-10), '-1010')
+        assert_equal(np.binary_repr(-12522),
+                     '-11000011101010')
+        assert_equal(np.binary_repr(-10736848),
+                     '-101000111101010011010000')
+
+    def test_sufficient_width(self):
+        assert_equal(np.binary_repr(0, width=5), '00000')
+        assert_equal(np.binary_repr(10, width=7), '0001010')
+        assert_equal(np.binary_repr(-5, width=7), '1111011')
+
+    def test_neg_width_boundaries(self):
+        # see gh-8670
+
+        # Ensure that the example in the issue does not
+        # break before proceeding to a more thorough test.
+        assert_equal(np.binary_repr(-128, width=8), '10000000')
+
+        for width in range(1, 11):
+            num = -2**(width - 1)
+            exp = '1' + (width - 1) * '0'
+            assert_equal(np.binary_repr(num, width=width), exp)
+
+    def test_large_neg_int64(self):
+        # See gh-14289.
+        assert_equal(np.binary_repr(np.int64(-2**62), width=64),
+                     '11' + '0' * 62)
+
+
+class TestBaseRepr:
+    def test_base3(self):
+        assert_equal(np.base_repr(3**5, 3), '100000')
+
+    def test_positive(self):
+        assert_equal(np.base_repr(12, 10), '12')
+        assert_equal(np.base_repr(12, 10, 4), '000012')
+        assert_equal(np.base_repr(12, 4), '30')
+        assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW')
+
+    def test_negative(self):
+        assert_equal(np.base_repr(-12, 10), '-12')
+        assert_equal(np.base_repr(-12, 10, 4), '-000012')
+        assert_equal(np.base_repr(-12, 4), '-30')
+
+    def test_base_range(self):
+        with assert_raises(ValueError):
+            np.base_repr(1, 1)
+        with assert_raises(ValueError):
+            np.base_repr(1, 37)
+
+    def test_minimal_signed_int(self):
+        assert_equal(np.base_repr(np.int8(-128)), '-10000000')
+
+
+def _test_array_equal_parametrizations():
+    """
+    we pre-create arrays as we sometime want to pass the same instance
+    and sometime not. Passing the same instances may not mean the array are
+    equal, especially when containing None
+    """
+    # those are 0-d arrays, it used to be a special case
+    # where (e0 == e0).all() would raise
+    e0 = np.array(0, dtype="int")
+    e1 = np.array(1, dtype="float")
+    # x,y, nan_equal, expected_result
+    yield (e0, e0.copy(), None, True)
+    yield (e0, e0.copy(), False, True)
+    yield (e0, e0.copy(), True, True)
+
+    #
+    yield (e1, e1.copy(), None, True)
+    yield (e1, e1.copy(), False, True)
+    yield (e1, e1.copy(), True, True)
+
+    # Non-nanable - those cannot hold nans
+    a12 = np.array([1, 2])
+    a12b = a12.copy()
+    a123 = np.array([1, 2, 3])
+    a13 = np.array([1, 3])
+    a34 = np.array([3, 4])
+
+    aS1 = np.array(["a"], dtype="S1")
+    aS1b = aS1.copy()
+    aS1u4 = np.array([("a", 1)], dtype="S1,u4")
+    aS1u4b = aS1u4.copy()
+
+    yield (a12, a12b, None, True)
+    yield (a12, a12, None, True)
+    yield (a12, a123, None, False)
+    yield (a12, a34, None, False)
+    yield (a12, a13, None, False)
+    yield (aS1, aS1b, None, True)
+    yield (aS1, aS1, None, True)
+
+    # Non-float dtype - equal_nan should have no effect,
+    yield (a123, a123, None, True)
+    yield (a123, a123, False, True)
+    yield (a123, a123, True, True)
+    yield (a123, a123.copy(), None, True)
+    yield (a123, a123.copy(), False, True)
+    yield (a123, a123.copy(), True, True)
+    yield (a123.astype("float"), a123.astype("float"), None, True)
+    yield (a123.astype("float"), a123.astype("float"), False, True)
+    yield (a123.astype("float"), a123.astype("float"), True, True)
+
+    # these can hold None
+    b1 = np.array([1, 2, np.nan])
+    b2 = np.array([1, np.nan, 2])
+    b3 = np.array([1, 2, np.inf])
+    b4 = np.array(np.nan)
+
+    # instances are the same
+    yield (b1, b1, None, False)
+    yield (b1, b1, False, False)
+    yield (b1, b1, True, True)
+
+    # equal but not same instance
+    yield (b1, b1.copy(), None, False)
+    yield (b1, b1.copy(), False, False)
+    yield (b1, b1.copy(), True, True)
+
+    # same once stripped of Nan
+    yield (b1, b2, None, False)
+    yield (b1, b2, False, False)
+    yield (b1, b2, True, False)
+
+    # nan's not conflated with inf's
+    yield (b1, b3, None, False)
+    yield (b1, b3, False, False)
+    yield (b1, b3, True, False)
+
+    # all Nan
+    yield (b4, b4, None, False)
+    yield (b4, b4, False, False)
+    yield (b4, b4, True, True)
+    yield (b4, b4.copy(), None, False)
+    yield (b4, b4.copy(), False, False)
+    yield (b4, b4.copy(), True, True)
+
+    t1 = b1.astype("timedelta64")
+    t2 = b2.astype("timedelta64")
+
+    # Timedeltas are particular
+    yield (t1, t1, None, False)
+    yield (t1, t1, False, False)
+    yield (t1, t1, True, True)
+
+    yield (t1, t1.copy(), None, False)
+    yield (t1, t1.copy(), False, False)
+    yield (t1, t1.copy(), True, True)
+
+    yield (t1, t2, None, False)
+    yield (t1, t2, False, False)
+    yield (t1, t2, True, False)
+
+    # Multi-dimensional array
+    md1 = np.array([[0, 1], [np.nan, 1]])
+
+    yield (md1, md1, None, False)
+    yield (md1, md1, False, False)
+    yield (md1, md1, True, True)
+    yield (md1, md1.copy(), None, False)
+    yield (md1, md1.copy(), False, False)
+    yield (md1, md1.copy(), True, True)
+    # both complexes are nan+nan.j but the same instance
+    cplx1, cplx2 = [np.array([np.nan + np.nan * 1j])] * 2
+
+    # only real or img are nan.
+    cplx3, cplx4 = np.complex64(1, np.nan), np.complex64(np.nan, 1)
+
+    # Complex values
+    yield (cplx1, cplx2, None, False)
+    yield (cplx1, cplx2, False, False)
+    yield (cplx1, cplx2, True, True)
+
+    # Complex values, 1+nan, nan+1j
+    yield (cplx3, cplx4, None, False)
+    yield (cplx3, cplx4, False, False)
+    yield (cplx3, cplx4, True, True)
+
+
+class TestArrayComparisons:
+    @pytest.mark.parametrize(
+        "bx,by,equal_nan,expected", _test_array_equal_parametrizations()
+    )
+    def test_array_equal_equal_nan(self, bx, by, equal_nan, expected):
+        """
+        This test array_equal for a few combinations:
+
+        - are the two inputs the same object or not (same object may not
+          be equal if contains NaNs)
+        - Whether we should consider or not, NaNs, being equal.
+
+        """
+        if equal_nan is None:
+            res = np.array_equal(bx, by)
+        else:
+            res = np.array_equal(bx, by, equal_nan=equal_nan)
+        assert_(res is expected)
+        assert_(type(res) is bool)
+
+    def test_array_equal_different_scalar_types(self):
+        # https://github.com/numpy/numpy/issues/27271
+        a = np.array("foo")
+        b = np.array(1)
+        assert not np.array_equal(a, b)
+        assert not np.array_equiv(a, b)
+
+    def test_none_compares_elementwise(self):
+        a = np.array([None, 1, None], dtype=object)
+        assert_equal(a == None, [True, False, True])  # noqa: E711
+        assert_equal(a != None, [False, True, False])  # noqa: E711
+
+        a = np.ones(3)
+        assert_equal(a == None, [False, False, False])  # noqa: E711
+        assert_equal(a != None, [True, True, True])  # noqa: E711
+
+    def test_array_equiv(self):
+        res = np.array_equiv(np.array([1, 2]), np.array([1, 2]))
+        assert_(res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(np.array([1, 2]), np.array([1, 2, 3]))
+        assert_(not res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(np.array([1, 2]), np.array([3, 4]))
+        assert_(not res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(np.array([1, 2]), np.array([1, 3]))
+        assert_(not res)
+        assert_(type(res) is bool)
+
+        res = np.array_equiv(np.array([1, 1]), np.array([1]))
+        assert_(res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(np.array([1, 1]), np.array([[1], [1]]))
+        assert_(res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(np.array([1, 2]), np.array([2]))
+        assert_(not res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(np.array([1, 2]), np.array([[1], [2]]))
+        assert_(not res)
+        assert_(type(res) is bool)
+        res = np.array_equiv(
+            np.array([1, 2]),
+            np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]),
+        )
+        assert_(not res)
+        assert_(type(res) is bool)
+
+    @pytest.mark.parametrize("dtype", ["V0", "V3", "V10"])
+    def test_compare_unstructured_voids(self, dtype):
+        zeros = np.zeros(3, dtype=dtype)
+
+        assert_array_equal(zeros, zeros)
+        assert not (zeros != zeros).any()
+
+        if dtype == "V0":
+            # Can't test != of actually different data
+            return
+
+        nonzeros = np.array([b"1", b"2", b"3"], dtype=dtype)
+
+        assert not (zeros == nonzeros).any()
+        assert (zeros != nonzeros).all()
+
+
+def assert_array_strict_equal(x, y):
+    assert_array_equal(x, y)
+    # Check flags, 32 bit arches typically don't provide 16 byte alignment
+    if ((x.dtype.alignment <= 8 or
+            np.intp().dtype.itemsize != 4) and
+            sys.platform != 'win32'):
+        assert_(x.flags == y.flags)
+    else:
+        assert_(x.flags.owndata == y.flags.owndata)
+        assert_(x.flags.writeable == y.flags.writeable)
+        assert_(x.flags.c_contiguous == y.flags.c_contiguous)
+        assert_(x.flags.f_contiguous == y.flags.f_contiguous)
+        assert_(x.flags.writebackifcopy == y.flags.writebackifcopy)
+    # check endianness
+    assert_(x.dtype.isnative == y.dtype.isnative)
+
+
+class TestClip:
+    nr = 5
+    nc = 3
+
+    def fastclip(self, a, m, M, out=None, **kwargs):
+        return a.clip(m, M, out=out, **kwargs)
+
+    def clip(self, a, m, M, out=None):
+        # use a.choose to verify fastclip result
+        selector = np.less(a, m) + 2 * np.greater(a, M)
+        return selector.choose((a, m, M), out=out)
+
+    # Handy functions
+    def _generate_data(self, n, m):
+        return randn(n, m)
+
+    def _generate_data_complex(self, n, m):
+        return randn(n, m) + 1.j * rand(n, m)
+
+    def _generate_flt_data(self, n, m):
+        return (randn(n, m)).astype(np.float32)
+
+    def _neg_byteorder(self, a):
+        a = np.asarray(a)
+        if sys.byteorder == 'little':
+            a = a.astype(a.dtype.newbyteorder('>'))
+        else:
+            a = a.astype(a.dtype.newbyteorder('<'))
+        return a
+
+    def _generate_non_native_data(self, n, m):
+        data = randn(n, m)
+        data = self._neg_byteorder(data)
+        assert_(not data.dtype.isnative)
+        return data
+
+    def _generate_int_data(self, n, m):
+        return (10 * rand(n, m)).astype(np.int64)
+
+    def _generate_int32_data(self, n, m):
+        return (10 * rand(n, m)).astype(np.int32)
+
+    # Now the real test cases
+
+    @pytest.mark.parametrize("dtype", '?bhilqpBHILQPefdgFDGO')
+    def test_ones_pathological(self, dtype):
+        # for preservation of behavior described in
+        # gh-12519; amin > amax behavior may still change
+        # in the future
+        arr = np.ones(10, dtype=dtype)
+        expected = np.zeros(10, dtype=dtype)
+        actual = np.clip(arr, 1, 0)
+        if dtype == 'O':
+            assert actual.tolist() == expected.tolist()
+        else:
+            assert_equal(actual, expected)
+
+    def test_simple_double(self):
+        # Test native double input with scalar min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = 0.1
+        M = 0.6
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_simple_int(self):
+        # Test native int input with scalar min/max.
+        a = self._generate_int_data(self.nr, self.nc)
+        a = a.astype(int)
+        m = -2
+        M = 4
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_array_double(self):
+        # Test native double input with array min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = np.zeros(a.shape)
+        M = m + 0.5
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_simple_nonnative(self):
+        # Test non native double input with scalar min/max.
+        # Test native double input with non native double scalar min/max.
+        a = self._generate_non_native_data(self.nr, self.nc)
+        m = -0.5
+        M = 0.6
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_equal(ac, act)
+
+        # Test native double input with non native double scalar min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5
+        M = self._neg_byteorder(0.6)
+        assert_(not M.dtype.isnative)
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_equal(ac, act)
+
+    def test_simple_complex(self):
+        # Test native complex input with native double scalar min/max.
+        # Test native input with complex double scalar min/max.
+        a = 3 * self._generate_data_complex(self.nr, self.nc)
+        m = -0.5
+        M = 1.
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+        # Test native input with complex double scalar min/max.
+        a = 3 * self._generate_data(self.nr, self.nc)
+        m = -0.5 + 1.j
+        M = 1. + 2.j
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_complex(self):
+        # Address Issue gh-5354 for clipping complex arrays
+        # Test native complex input without explicit min/max
+        # ie, either min=None or max=None
+        a = np.ones(10, dtype=complex)
+        m = a.min()
+        M = a.max()
+        am = self.fastclip(a, m, None)
+        aM = self.fastclip(a, None, M)
+        assert_array_strict_equal(am, a)
+        assert_array_strict_equal(aM, a)
+
+    def test_clip_non_contig(self):
+        # Test clip for non contiguous native input and native scalar min/max.
+        a = self._generate_data(self.nr * 2, self.nc * 3)
+        a = a[::2, ::3]
+        assert_(not a.flags['F_CONTIGUOUS'])
+        assert_(not a.flags['C_CONTIGUOUS'])
+        ac = self.fastclip(a, -1.6, 1.7)
+        act = self.clip(a, -1.6, 1.7)
+        assert_array_strict_equal(ac, act)
+
+    def test_simple_out(self):
+        # Test native double input with scalar min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5
+        M = 0.6
+        ac = np.zeros(a.shape)
+        act = np.zeros(a.shape)
+        self.fastclip(a, m, M, ac)
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    @pytest.mark.parametrize("casting", [None, "unsafe"])
+    def test_simple_int32_inout(self, casting):
+        # Test native int32 input with double min/max and int32 out.
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.float64(0)
+        M = np.float64(2)
+        ac = np.zeros(a.shape, dtype=np.int32)
+        act = ac.copy()
+        if casting is None:
+            with pytest.raises(TypeError):
+                self.fastclip(a, m, M, ac, casting=casting)
+        else:
+            # explicitly passing "unsafe" will silence warning
+            self.fastclip(a, m, M, ac, casting=casting)
+            self.clip(a, m, M, act)
+            assert_array_strict_equal(ac, act)
+
+    def test_simple_int64_out(self):
+        # Test native int32 input with int32 scalar min/max and int64 out.
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.int32(-1)
+        M = np.int32(1)
+        ac = np.zeros(a.shape, dtype=np.int64)
+        act = ac.copy()
+        self.fastclip(a, m, M, ac)
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_simple_int64_inout(self):
+        # Test native int32 input with double array min/max and int32 out.
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.zeros(a.shape, np.float64)
+        M = np.float64(1)
+        ac = np.zeros(a.shape, dtype=np.int32)
+        act = ac.copy()
+        self.fastclip(a, m, M, out=ac, casting="unsafe")
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_simple_int32_out(self):
+        # Test native double input with scalar min/max and int out.
+        a = self._generate_data(self.nr, self.nc)
+        m = -1.0
+        M = 2.0
+        ac = np.zeros(a.shape, dtype=np.int32)
+        act = ac.copy()
+        self.fastclip(a, m, M, out=ac, casting="unsafe")
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_simple_inplace_01(self):
+        # Test native double input with array min/max in-place.
+        a = self._generate_data(self.nr, self.nc)
+        ac = a.copy()
+        m = np.zeros(a.shape)
+        M = 1.0
+        self.fastclip(a, m, M, a)
+        self.clip(a, m, M, ac)
+        assert_array_strict_equal(a, ac)
+
+    def test_simple_inplace_02(self):
+        # Test native double input with scalar min/max in-place.
+        a = self._generate_data(self.nr, self.nc)
+        ac = a.copy()
+        m = -0.5
+        M = 0.6
+        self.fastclip(a, m, M, a)
+        self.clip(ac, m, M, ac)
+        assert_array_strict_equal(a, ac)
+
+    def test_noncontig_inplace(self):
+        # Test non contiguous double input with double scalar min/max in-place.
+        a = self._generate_data(self.nr * 2, self.nc * 3)
+        a = a[::2, ::3]
+        assert_(not a.flags['F_CONTIGUOUS'])
+        assert_(not a.flags['C_CONTIGUOUS'])
+        ac = a.copy()
+        m = -0.5
+        M = 0.6
+        self.fastclip(a, m, M, a)
+        self.clip(ac, m, M, ac)
+        assert_array_equal(a, ac)
+
+    def test_type_cast_01(self):
+        # Test native double input with scalar min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5
+        M = 0.6
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_02(self):
+        # Test native int32 input with int32 scalar min/max.
+        a = self._generate_int_data(self.nr, self.nc)
+        a = a.astype(np.int32)
+        m = -2
+        M = 4
+        ac = self.fastclip(a, m, M)
+        act = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_03(self):
+        # Test native int32 input with float64 scalar min/max.
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = -2
+        M = 4
+        ac = self.fastclip(a, np.float64(m), np.float64(M))
+        act = self.clip(a, np.float64(m), np.float64(M))
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_04(self):
+        # Test native int32 input with float32 scalar min/max.
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.float32(-2)
+        M = np.float32(4)
+        act = self.fastclip(a, m, M)
+        ac = self.clip(a, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_05(self):
+        # Test native int32 with double arrays min/max.
+        a = self._generate_int_data(self.nr, self.nc)
+        m = -0.5
+        M = 1.
+        ac = self.fastclip(a, m * np.zeros(a.shape), M)
+        act = self.clip(a, m * np.zeros(a.shape), M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_06(self):
+        # Test native with NON native scalar min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = 0.5
+        m_s = self._neg_byteorder(m)
+        M = 1.
+        act = self.clip(a, m_s, M)
+        ac = self.fastclip(a, m_s, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_07(self):
+        # Test NON native with native array min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5 * np.ones(a.shape)
+        M = 1.
+        a_s = self._neg_byteorder(a)
+        assert_(not a_s.dtype.isnative)
+        act = a_s.clip(m, M)
+        ac = self.fastclip(a_s, m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_08(self):
+        # Test NON native with native scalar min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5
+        M = 1.
+        a_s = self._neg_byteorder(a)
+        assert_(not a_s.dtype.isnative)
+        ac = self.fastclip(a_s, m, M)
+        act = a_s.clip(m, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_09(self):
+        # Test native with NON native array min/max.
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5 * np.ones(a.shape)
+        M = 1.
+        m_s = self._neg_byteorder(m)
+        assert_(not m_s.dtype.isnative)
+        ac = self.fastclip(a, m_s, M)
+        act = self.clip(a, m_s, M)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_10(self):
+        # Test native int32 with float min/max and float out for output argument.
+        a = self._generate_int_data(self.nr, self.nc)
+        b = np.zeros(a.shape, dtype=np.float32)
+        m = np.float32(-0.5)
+        M = np.float32(1)
+        act = self.clip(a, m, M, out=b)
+        ac = self.fastclip(a, m, M, out=b)
+        assert_array_strict_equal(ac, act)
+
+    def test_type_cast_11(self):
+        # Test non native with native scalar, min/max, out non native
+        a = self._generate_non_native_data(self.nr, self.nc)
+        b = a.copy()
+        b = b.astype(b.dtype.newbyteorder('>'))
+        bt = b.copy()
+        m = -0.5
+        M = 1.
+        self.fastclip(a, m, M, out=b)
+        self.clip(a, m, M, out=bt)
+        assert_array_strict_equal(b, bt)
+
+    def test_type_cast_12(self):
+        # Test native int32 input and min/max and float out
+        a = self._generate_int_data(self.nr, self.nc)
+        b = np.zeros(a.shape, dtype=np.float32)
+        m = np.int32(0)
+        M = np.int32(1)
+        act = self.clip(a, m, M, out=b)
+        ac = self.fastclip(a, m, M, out=b)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_with_out_simple(self):
+        # Test native double input with scalar min/max
+        a = self._generate_data(self.nr, self.nc)
+        m = -0.5
+        M = 0.6
+        ac = np.zeros(a.shape)
+        act = np.zeros(a.shape)
+        self.fastclip(a, m, M, ac)
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_with_out_simple2(self):
+        # Test native int32 input with double min/max and int32 out
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.float64(0)
+        M = np.float64(2)
+        ac = np.zeros(a.shape, dtype=np.int32)
+        act = ac.copy()
+        self.fastclip(a, m, M, out=ac, casting="unsafe")
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_with_out_simple_int32(self):
+        # Test native int32 input with int32 scalar min/max and int64 out
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.int32(-1)
+        M = np.int32(1)
+        ac = np.zeros(a.shape, dtype=np.int64)
+        act = ac.copy()
+        self.fastclip(a, m, M, ac)
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_with_out_array_int32(self):
+        # Test native int32 input with double array min/max and int32 out
+        a = self._generate_int32_data(self.nr, self.nc)
+        m = np.zeros(a.shape, np.float64)
+        M = np.float64(1)
+        ac = np.zeros(a.shape, dtype=np.int32)
+        act = ac.copy()
+        self.fastclip(a, m, M, out=ac, casting="unsafe")
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_with_out_array_outint32(self):
+        # Test native double input with scalar min/max and int out
+        a = self._generate_data(self.nr, self.nc)
+        m = -1.0
+        M = 2.0
+        ac = np.zeros(a.shape, dtype=np.int32)
+        act = ac.copy()
+        self.fastclip(a, m, M, out=ac, casting="unsafe")
+        self.clip(a, m, M, act)
+        assert_array_strict_equal(ac, act)
+
+    def test_clip_with_out_transposed(self):
+        # Test that the out argument works when transposed
+        a = np.arange(16).reshape(4, 4)
+        out = np.empty_like(a).T
+        a.clip(4, 10, out=out)
+        expected = self.clip(a, 4, 10)
+        assert_array_equal(out, expected)
+
+    def test_clip_with_out_memory_overlap(self):
+        # Test that the out argument works when it has memory overlap
+        a = np.arange(16).reshape(4, 4)
+        ac = a.copy()
+        a[:-1].clip(4, 10, out=a[1:])
+        expected = self.clip(ac[:-1], 4, 10)
+        assert_array_equal(a[1:], expected)
+
+    def test_clip_inplace_array(self):
+        # Test native double input with array min/max
+        a = self._generate_data(self.nr, self.nc)
+        ac = a.copy()
+        m = np.zeros(a.shape)
+        M = 1.0
+        self.fastclip(a, m, M, a)
+        self.clip(a, m, M, ac)
+        assert_array_strict_equal(a, ac)
+
+    def test_clip_inplace_simple(self):
+        # Test native double input with scalar min/max
+        a = self._generate_data(self.nr, self.nc)
+        ac = a.copy()
+        m = -0.5
+        M = 0.6
+        self.fastclip(a, m, M, a)
+        self.clip(a, m, M, ac)
+        assert_array_strict_equal(a, ac)
+
+    def test_clip_func_takes_out(self):
+        # Ensure that the clip() function takes an out=argument.
+        a = self._generate_data(self.nr, self.nc)
+        ac = a.copy()
+        m = -0.5
+        M = 0.6
+        a2 = np.clip(a, m, M, out=a)
+        self.clip(a, m, M, ac)
+        assert_array_strict_equal(a2, ac)
+        assert_(a2 is a)
+
+    def test_clip_nan(self):
+        d = np.arange(7.)
+        assert_equal(d.clip(min=np.nan), np.nan)
+        assert_equal(d.clip(max=np.nan), np.nan)
+        assert_equal(d.clip(min=np.nan, max=np.nan), np.nan)
+        assert_equal(d.clip(min=-2, max=np.nan), np.nan)
+        assert_equal(d.clip(min=np.nan, max=10), np.nan)
+
+    def test_object_clip(self):
+        a = np.arange(10, dtype=object)
+        actual = np.clip(a, 1, 5)
+        expected = np.array([1, 1, 2, 3, 4, 5, 5, 5, 5, 5])
+        assert actual.tolist() == expected.tolist()
+
+    def test_clip_all_none(self):
+        arr = np.arange(10, dtype=object)
+        assert_equal(np.clip(arr, None, None), arr)
+        assert_equal(np.clip(arr), arr)
+
+    def test_clip_invalid_casting(self):
+        a = np.arange(10, dtype=object)
+        with assert_raises_regex(ValueError,
+                                 'casting must be one of'):
+            self.fastclip(a, 1, 8, casting="garbage")
+
+    @pytest.mark.parametrize("amin, amax", [
+        # two scalars
+        (1, 0),
+        # mix scalar and array
+        (1, np.zeros(10)),
+        # two arrays
+        (np.ones(10), np.zeros(10)),
+        ])
+    def test_clip_value_min_max_flip(self, amin, amax):
+        a = np.arange(10, dtype=np.int64)
+        # requirement from ufunc_docstrings.py
+        expected = np.minimum(np.maximum(a, amin), amax)
+        actual = np.clip(a, amin, amax)
+        assert_equal(actual, expected)
+
+    @pytest.mark.parametrize("arr, amin, amax, exp", [
+        # for a bug in npy_ObjectClip, based on a
+        # case produced by hypothesis
+        (np.zeros(10, dtype=object),
+         0,
+         -2**64 + 1,
+         np.full(10, -2**64 + 1, dtype=object)),
+        # for bugs in NPY_TIMEDELTA_MAX, based on a case
+        # produced by hypothesis
+        (np.zeros(10, dtype='m8') - 1,
+         0,
+         0,
+         np.zeros(10, dtype='m8')),
+    ])
+    def test_clip_problem_cases(self, arr, amin, amax, exp):
+        actual = np.clip(arr, amin, amax)
+        assert_equal(actual, exp)
+
+    @pytest.mark.parametrize("arr, amin, amax", [
+        # problematic scalar nan case from hypothesis
+        (np.zeros(10, dtype=np.int64),
+         np.array(np.nan),
+         np.zeros(10, dtype=np.int32)),
+    ])
+    def test_clip_scalar_nan_propagation(self, arr, amin, amax):
+        # enforcement of scalar nan propagation for comparisons
+        # called through clip()
+        expected = np.minimum(np.maximum(arr, amin), amax)
+        actual = np.clip(arr, amin, amax)
+        assert_equal(actual, expected)
+
+    @pytest.mark.parametrize("arr, amin, amax", [
+        (np.array([1] * 10, dtype='m8'),
+         np.timedelta64('NaT'),
+         np.zeros(10, dtype=np.int32)),
+    ])
+    def test_NaT_propagation(self, arr, amin, amax):
+        expected = np.minimum(np.maximum(arr, amin), amax)
+        actual = np.clip(arr, amin, amax)
+        assert_equal(actual, expected)
+
+    @given(
+        data=st.data(),
+        arr=hynp.arrays(
+            dtype=hynp.integer_dtypes() | hynp.floating_dtypes(),
+            shape=hynp.array_shapes()
+        )
+    )
+    def test_clip_property(self, data, arr):
+        """A property-based test using Hypothesis.
+
+        This aims for maximum generality: it could in principle generate *any*
+        valid inputs to np.clip, and in practice generates much more varied
+        inputs than human testers come up with.
+
+        Because many of the inputs have tricky dependencies - compatible dtypes
+        and mutually-broadcastable shapes - we use `st.data()` strategy draw
+        values *inside* the test function, from strategies we construct based
+        on previous values.  An alternative would be to define a custom strategy
+        with `@st.composite`, but until we have duplicated code inline is fine.
+
+        That accounts for most of the function; the actual test is just three
+        lines to calculate and compare actual vs expected results!
+        """
+        numeric_dtypes = hynp.integer_dtypes() | hynp.floating_dtypes()
+        # Generate shapes for the bounds which can be broadcast with each other
+        # and with the base shape.  Below, we might decide to use scalar bounds,
+        # but it's clearer to generate these shapes unconditionally in advance.
+        in_shapes, result_shape = data.draw(
+            hynp.mutually_broadcastable_shapes(
+                num_shapes=2, base_shape=arr.shape
+            )
+        )
+        # Scalar `nan` is deprecated due to the differing behaviour it shows.
+        s = numeric_dtypes.flatmap(
+            lambda x: hynp.from_dtype(x, allow_nan=False))
+        amin = data.draw(s | hynp.arrays(dtype=numeric_dtypes,
+            shape=in_shapes[0], elements={"allow_nan": False}))
+        amax = data.draw(s | hynp.arrays(dtype=numeric_dtypes,
+            shape=in_shapes[1], elements={"allow_nan": False}))
+
+        # Then calculate our result and expected result and check that they're
+        # equal!  See gh-12519 and gh-19457 for discussion deciding on this
+        # property and the result_type argument.
+        result = np.clip(arr, amin, amax)
+        t = np.result_type(arr, amin, amax)
+        expected = np.minimum(amax, np.maximum(arr, amin, dtype=t), dtype=t)
+        assert result.dtype == t
+        assert_array_equal(result, expected)
+
+    def test_clip_min_max_args(self):
+        arr = np.arange(5)
+
+        assert_array_equal(np.clip(arr), arr)
+        assert_array_equal(np.clip(arr, min=2, max=3), np.clip(arr, 2, 3))
+        assert_array_equal(np.clip(arr, min=None, max=2),
+                           np.clip(arr, None, 2))
+
+        with assert_raises_regex(TypeError, "missing 1 required positional "
+                                 "argument: 'a_max'"):
+            np.clip(arr, 2)
+        with assert_raises_regex(TypeError, "missing 1 required positional "
+                                 "argument: 'a_min'"):
+            np.clip(arr, a_max=2)
+        msg = ("Passing `min` or `max` keyword argument when `a_min` and "
+               "`a_max` are provided is forbidden.")
+        with assert_raises_regex(ValueError, msg):
+            np.clip(arr, 2, 3, max=3)
+        with assert_raises_regex(ValueError, msg):
+            np.clip(arr, 2, 3, min=2)
+
+    @pytest.mark.parametrize("dtype,min,max", [
+        ("int32", -2**32 - 1, 2**32),
+        ("int32", -2**320, None),
+        ("int32", None, 2**300),
+        ("int32", -1000, 2**32),
+        ("int32", -2**32 - 1, 1000),
+        ("uint8", -1, 129),
+    ])
+    def test_out_of_bound_pyints(self, dtype, min, max):
+        a = np.arange(10000).astype(dtype)
+        # Check min only
+        c = np.clip(a, min=min, max=max)
+        assert not np.may_share_memory(a, c)
+        assert c.dtype == a.dtype
+        if min is not None:
+            assert (c >= min).all()
+        if max is not None:
+            assert (c <= max).all()
+
+
+class TestAllclose:
+    rtol = 1e-5
+    atol = 1e-8
+
+    def setup_method(self):
+        self.olderr = np.seterr(invalid='ignore')
+
+    def teardown_method(self):
+        np.seterr(**self.olderr)
+
+    def tst_allclose(self, x, y):
+        assert_(np.allclose(x, y), f"{x} and {y} not close")
+
+    def tst_not_allclose(self, x, y):
+        assert_(not np.allclose(x, y), f"{x} and {y} shouldn't be close")
+
+    def test_ip_allclose(self):
+        # Parametric test factory.
+        arr = np.array([100, 1000])
+        aran = np.arange(125).reshape((5, 5, 5))
+
+        atol = self.atol
+        rtol = self.rtol
+
+        data = [([1, 0], [1, 0]),
+                ([atol], [0]),
+                ([1], [1 + rtol + atol]),
+                (arr, arr + arr * rtol),
+                (arr, arr + arr * rtol + atol * 2),
+                (aran, aran + aran * rtol),
+                (np.inf, np.inf),
+                (np.inf, [np.inf])]
+
+        for (x, y) in data:
+            self.tst_allclose(x, y)
+
+    def test_ip_not_allclose(self):
+        # Parametric test factory.
+        aran = np.arange(125).reshape((5, 5, 5))
+
+        atol = self.atol
+        rtol = self.rtol
+
+        data = [([np.inf, 0], [1, np.inf]),
+                ([np.inf, 0], [1, 0]),
+                ([np.inf, np.inf], [1, np.inf]),
+                ([np.inf, np.inf], [1, 0]),
+                ([-np.inf, 0], [np.inf, 0]),
+                ([np.nan, 0], [np.nan, 0]),
+                ([atol * 2], [0]),
+                ([1], [1 + rtol + atol * 2]),
+                (aran, aran + aran * atol + atol * 2),
+                (np.array([np.inf, 1]), np.array([0, np.inf]))]
+
+        for (x, y) in data:
+            self.tst_not_allclose(x, y)
+
+    def test_no_parameter_modification(self):
+        x = np.array([np.inf, 1])
+        y = np.array([0, np.inf])
+        np.allclose(x, y)
+        assert_array_equal(x, np.array([np.inf, 1]))
+        assert_array_equal(y, np.array([0, np.inf]))
+
+    def test_min_int(self):
+        # Could make problems because of abs(min_int) == min_int
+        min_int = np.iinfo(np.int_).min
+        a = np.array([min_int], dtype=np.int_)
+        assert_(np.allclose(a, a))
+
+    def test_equalnan(self):
+        x = np.array([1.0, np.nan])
+        assert_(np.allclose(x, x, equal_nan=True))
+
+    def test_return_class_is_ndarray(self):
+        # Issue gh-6475
+        # Check that allclose does not preserve subtypes
+        class Foo(np.ndarray):
+            def __new__(cls, *args, **kwargs):
+                return np.array(*args, **kwargs).view(cls)
+
+        a = Foo([1])
+        assert_(type(np.allclose(a, a)) is bool)
+
+
+class TestIsclose:
+    rtol = 1e-5
+    atol = 1e-8
+
+    def _setup(self):
+        atol = self.atol
+        rtol = self.rtol
+        arr = np.array([100, 1000])
+        aran = np.arange(125).reshape((5, 5, 5))
+
+        self.all_close_tests = [
+                ([1, 0], [1, 0]),
+                ([atol], [0]),
+                ([1], [1 + rtol + atol]),
+                (arr, arr + arr * rtol),
+                (arr, arr + arr * rtol + atol),
+                (aran, aran + aran * rtol),
+                (np.inf, np.inf),
+                (np.inf, [np.inf]),
+                ([np.inf, -np.inf], [np.inf, -np.inf]),
+                ]
+        self.none_close_tests = [
+                ([np.inf, 0], [1, np.inf]),
+                ([np.inf, -np.inf], [1, 0]),
+                ([np.inf, np.inf], [1, -np.inf]),
+                ([np.inf, np.inf], [1, 0]),
+                ([np.nan, 0], [np.nan, -np.inf]),
+                ([atol * 2], [0]),
+                ([1], [1 + rtol + atol * 2]),
+                (aran, aran + rtol * 1.1 * aran + atol * 1.1),
+                (np.array([np.inf, 1]), np.array([0, np.inf])),
+                ]
+        self.some_close_tests = [
+                ([np.inf, 0], [np.inf, atol * 2]),
+                ([atol, 1, 1e6 * (1 + 2 * rtol) + atol], [0, np.nan, 1e6]),
+                (np.arange(3), [0, 1, 2.1]),
+                (np.nan, [np.nan, np.nan, np.nan]),
+                ([0], [atol, np.inf, -np.inf, np.nan]),
+                (0, [atol, np.inf, -np.inf, np.nan]),
+                ]
+        self.some_close_results = [
+                [True, False],
+                [True, False, False],
+                [True, True, False],
+                [False, False, False],
+                [True, False, False, False],
+                [True, False, False, False],
+                ]
+
+    def test_ip_isclose(self):
+        self._setup()
+        tests = self.some_close_tests
+        results = self.some_close_results
+        for (x, y), result in zip(tests, results):
+            assert_array_equal(np.isclose(x, y), result)
+
+        x = np.array([2.1, 2.1, 2.1, 2.1, 5, np.nan])
+        y = np.array([2, 2, 2, 2, np.nan, 5])
+        atol = [0.11, 0.09, 1e-8, 1e-8, 1, 1]
+        rtol = [1e-8, 1e-8, 0.06, 0.04, 1, 1]
+        expected = np.array([True, False, True, False, False, False])
+        assert_array_equal(np.isclose(x, y, rtol=rtol, atol=atol), expected)
+
+        message = "operands could not be broadcast together..."
+        atol = np.array([1e-8, 1e-8])
+        with assert_raises(ValueError, msg=message):
+            np.isclose(x, y, atol=atol)
+
+        rtol = np.array([1e-5, 1e-5])
+        with assert_raises(ValueError, msg=message):
+            np.isclose(x, y, rtol=rtol)
+
+    def test_nep50_isclose(self):
+        below_one = float(1. - np.finfo('f8').eps)
+        f32 = np.array(below_one, 'f4')  # This is just 1 at float32 precision
+        assert f32 > np.array(below_one)
+        # NEP 50 broadcasting of python scalars
+        assert f32 == below_one
+        # Test that it works for isclose arguments too (and that those fail if
+        # one uses a numpy float64).
+        assert np.isclose(f32, below_one, atol=0, rtol=0)
+        assert np.isclose(f32, np.float32(0), atol=below_one)
+        assert np.isclose(f32, 2, atol=0, rtol=below_one / 2)
+        assert not np.isclose(f32, np.float64(below_one), atol=0, rtol=0)
+        assert not np.isclose(f32, np.float32(0), atol=np.float64(below_one))
+        assert not np.isclose(f32, 2, atol=0, rtol=np.float64(below_one / 2))
+
+    def tst_all_isclose(self, x, y):
+        assert_(np.all(np.isclose(x, y)), f"{x} and {y} not close")
+
+    def tst_none_isclose(self, x, y):
+        msg = "%s and %s shouldn't be close"
+        assert_(not np.any(np.isclose(x, y)), msg % (x, y))
+
+    def tst_isclose_allclose(self, x, y):
+        msg = "isclose.all() and allclose aren't same for %s and %s"
+        msg2 = "isclose and allclose aren't same for %s and %s"
+        if np.isscalar(x) and np.isscalar(y):
+            assert_(np.isclose(x, y) == np.allclose(x, y), msg=msg2 % (x, y))
+        else:
+            assert_array_equal(
+                np.isclose(x, y).all(), np.allclose(x, y), msg % (x, y)
+            )
+
+    def test_ip_all_isclose(self):
+        self._setup()
+        for (x, y) in self.all_close_tests:
+            self.tst_all_isclose(x, y)
+
+        x = np.array([2.3, 3.6, 4.4, np.nan])
+        y = np.array([2, 3, 4, np.nan])
+        atol = [0.31, 0, 0, 1]
+        rtol = [0, 0.21, 0.11, 1]
+        assert np.allclose(x, y, atol=atol, rtol=rtol, equal_nan=True)
+        assert not np.allclose(x, y, atol=0.1, rtol=0.1, equal_nan=True)
+
+        # Show that gh-14330 is resolved
+        assert np.allclose([1, 2, float('nan')], [1, 2, float('nan')],
+                           atol=[1, 1, 1], equal_nan=True)
+
+    def test_ip_none_isclose(self):
+        self._setup()
+        for (x, y) in self.none_close_tests:
+            self.tst_none_isclose(x, y)
+
+    def test_ip_isclose_allclose(self):
+        self._setup()
+        tests = (self.all_close_tests + self.none_close_tests +
+                 self.some_close_tests)
+        for (x, y) in tests:
+            self.tst_isclose_allclose(x, y)
+
+    def test_equal_nan(self):
+        assert_array_equal(np.isclose(np.nan, np.nan, equal_nan=True), [True])
+        arr = np.array([1.0, np.nan])
+        assert_array_equal(np.isclose(arr, arr, equal_nan=True), [True, True])
+
+    def test_masked_arrays(self):
+        # Make sure to test the output type when arguments are interchanged.
+
+        x = np.ma.masked_where([True, True, False], np.arange(3))
+        assert_(type(x) is type(np.isclose(2, x)))
+        assert_(type(x) is type(np.isclose(x, 2)))
+
+        x = np.ma.masked_where([True, True, False], [np.nan, np.inf, np.nan])
+        assert_(type(x) is type(np.isclose(np.inf, x)))
+        assert_(type(x) is type(np.isclose(x, np.inf)))
+
+        x = np.ma.masked_where([True, True, False], [np.nan, np.nan, np.nan])
+        y = np.isclose(np.nan, x, equal_nan=True)
+        assert_(type(x) is type(y))
+        # Ensure that the mask isn't modified...
+        assert_array_equal([True, True, False], y.mask)
+        y = np.isclose(x, np.nan, equal_nan=True)
+        assert_(type(x) is type(y))
+        # Ensure that the mask isn't modified...
+        assert_array_equal([True, True, False], y.mask)
+
+        x = np.ma.masked_where([True, True, False], [np.nan, np.nan, np.nan])
+        y = np.isclose(x, x, equal_nan=True)
+        assert_(type(x) is type(y))
+        # Ensure that the mask isn't modified...
+        assert_array_equal([True, True, False], y.mask)
+
+    def test_scalar_return(self):
+        assert_(np.isscalar(np.isclose(1, 1)))
+
+    def test_no_parameter_modification(self):
+        x = np.array([np.inf, 1])
+        y = np.array([0, np.inf])
+        np.isclose(x, y)
+        assert_array_equal(x, np.array([np.inf, 1]))
+        assert_array_equal(y, np.array([0, np.inf]))
+
+    def test_non_finite_scalar(self):
+        # GH7014, when two scalars are compared the output should also be a
+        # scalar
+        assert_(np.isclose(np.inf, -np.inf) is np.False_)
+        assert_(np.isclose(0, np.inf) is np.False_)
+        assert_(type(np.isclose(0, np.inf)) is np.bool)
+
+    def test_timedelta(self):
+        # Allclose currently works for timedelta64 as long as `atol` is
+        # an integer or also a timedelta64
+        a = np.array([[1, 2, 3, "NaT"]], dtype="m8[ns]")
+        assert np.isclose(a, a, atol=0, equal_nan=True).all()
+        assert np.isclose(a, a, atol=np.timedelta64(1, "ns"), equal_nan=True).all()
+        assert np.allclose(a, a, atol=0, equal_nan=True)
+        assert np.allclose(a, a, atol=np.timedelta64(1, "ns"), equal_nan=True)
+
+    def test_tol_warnings(self):
+        a = np.array([1, 2, 3])
+        b = np.array([np.inf, np.nan, 1])
+
+        for i in b:
+            for j in b:
+                # Making sure that i and j are not both numbers,
+                # because that won't create a warning
+                if (i == 1) and (j == 1):
+                    continue
+
+                with warnings.catch_warnings(record=True) as w:
+
+                    warnings.simplefilter("always")
+                    c = np.isclose(a, a, atol=i, rtol=j)
+                    assert len(w) == 1
+                    assert issubclass(w[-1].category, RuntimeWarning)
+                    expected = f"One of rtol or atol is not valid, atol: {i}, rtol: {j}"
+                    assert expected in str(w[-1].message)
+
+
+class TestStdVar:
+    def _create_data(self):
+        A = np.array([1, -1, 1, -1])
+        real_var = 1
+        return A, real_var
+
+    def test_basic(self):
+        A, real_var = self._create_data()
+        assert_almost_equal(np.var(A), real_var)
+        assert_almost_equal(np.std(A)**2, real_var)
+
+    def test_scalars(self):
+        assert_equal(np.var(1), 0)
+        assert_equal(np.std(1), 0)
+
+    def test_ddof1(self):
+        A, real_var = self._create_data()
+        assert_almost_equal(np.var(A, ddof=1),
+                            real_var * len(A) / (len(A) - 1))
+        assert_almost_equal(np.std(A, ddof=1)**2,
+                            real_var * len(A) / (len(A) - 1))
+
+    def test_ddof2(self):
+        A, real_var = self._create_data()
+        assert_almost_equal(np.var(A, ddof=2),
+                            real_var * len(A) / (len(A) - 2))
+        assert_almost_equal(np.std(A, ddof=2)**2,
+                            real_var * len(A) / (len(A) - 2))
+
+    def test_correction(self):
+        A, _ = self._create_data()
+        assert_almost_equal(
+            np.var(A, correction=1), np.var(A, ddof=1)
+        )
+        assert_almost_equal(
+            np.std(A, correction=1), np.std(A, ddof=1)
+        )
+
+        err_msg = "ddof and correction can't be provided simultaneously."
+
+        with assert_raises_regex(ValueError, err_msg):
+            np.var(A, ddof=1, correction=0)
+
+        with assert_raises_regex(ValueError, err_msg):
+            np.std(A, ddof=1, correction=1)
+
+    def test_out_scalar(self):
+        d = np.arange(10)
+        out = np.array(0.)
+        r = np.std(d, out=out)
+        assert_(r is out)
+        assert_array_equal(r, out)
+        r = np.var(d, out=out)
+        assert_(r is out)
+        assert_array_equal(r, out)
+        r = np.mean(d, out=out)
+        assert_(r is out)
+        assert_array_equal(r, out)
+
+
+class TestStdVarComplex:
+    def test_basic(self):
+        A = np.array([1, 1.j, -1, -1.j])
+        real_var = 1
+        assert_almost_equal(np.var(A), real_var)
+        assert_almost_equal(np.std(A)**2, real_var)
+
+    def test_scalars(self):
+        assert_equal(np.var(1j), 0)
+        assert_equal(np.std(1j), 0)
+
+
+class TestCreationFuncs:
+    def check_function(self, func, fill_value=None):
+        dtypes_info = {np.dtype(tp) for tp in itertools.chain(*sctypes.values())}
+        keyfunc = lambda dtype: dtype.str
+        variable_sized = {tp for tp in dtypes_info if tp.str.endswith('0')}
+        dtypes = sorted(dtypes_info - variable_sized |
+                             {np.dtype(tp.str.replace("0", str(i)))
+                              for tp in variable_sized for i in range(1, 10)},
+                             key=keyfunc)
+        dtypes += [type(dt) for dt in sorted(dtypes_info, key=keyfunc)]
+        orders = {'C': 'c_contiguous', 'F': 'f_contiguous'}
+        ndims = 10
+
+        par = ((0, 1, 2),
+               range(ndims),
+               orders,
+               dtypes)
+        fill_kwarg = {}
+        if fill_value is not None:
+            fill_kwarg = {'fill_value': fill_value}
+
+        for size, ndims, order, dtype in itertools.product(*par):
+            shape = ndims * [size]
+
+            is_void = dtype is np.dtypes.VoidDType or (
+                isinstance(dtype, np.dtype) and dtype.str.startswith('|V'))
+
+            # do not fill void type
+            if fill_kwarg and is_void:
+                continue
+
+            arr = func(shape, order=order, dtype=dtype,
+                       **fill_kwarg)
+
+            if isinstance(dtype, np.dtype):
+                assert_equal(arr.dtype, dtype)
+            elif isinstance(dtype, type(np.dtype)):
+                if dtype in (np.dtypes.StrDType, np.dtypes.BytesDType):
+                    dtype_str = np.dtype(dtype.type).str.replace('0', '1')
+                    assert_equal(arr.dtype, np.dtype(dtype_str))
+                else:
+                    assert_equal(arr.dtype, np.dtype(dtype.type))
+            assert_(getattr(arr.flags, orders[order]))
+
+            if fill_value is not None:
+                if arr.dtype.str.startswith('|S'):
+                    val = str(fill_value)
+                else:
+                    val = fill_value
+                assert_equal(arr, dtype.type(val))
+
+    def test_zeros(self):
+        self.check_function(np.zeros)
+
+    def test_ones(self):
+        self.check_function(np.ones)
+
+    def test_empty(self):
+        self.check_function(np.empty)
+
+    def test_full(self):
+        self.check_function(np.full, 0)
+        self.check_function(np.full, 1)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_for_reference_leak(self):
+        # Make sure we have an object for reference
+        dim = 1
+        beg = sys.getrefcount(dim)
+        np.zeros([dim] * 10)
+        assert_(sys.getrefcount(dim) == beg)
+        np.ones([dim] * 10)
+        assert_(sys.getrefcount(dim) == beg)
+        np.empty([dim] * 10)
+        assert_(sys.getrefcount(dim) == beg)
+        np.full([dim] * 10, 0)
+        assert_(sys.getrefcount(dim) == beg)
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    @pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+    @pytest.mark.parametrize("func", [np.empty, np.zeros, np.ones, np.full])
+    def test_signatures(self, func):
+        sig = inspect.signature(func)
+        params = sig.parameters
+
+        assert len(params) in {5, 6}
+
+        assert 'shape' in params
+        assert params["shape"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+        assert params["shape"].default is inspect.Parameter.empty
+
+        assert 'dtype' in params
+        assert params["dtype"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+        assert params["dtype"].default is None
+
+        assert 'order' in params
+        assert params["order"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+        assert params["order"].default == "C"
+
+        assert 'device' in params
+        assert params["device"].kind is inspect.Parameter.KEYWORD_ONLY
+        assert params["device"].default is None
+
+        assert 'like' in params
+        assert params["like"].kind is inspect.Parameter.KEYWORD_ONLY
+        assert params["like"].default is None
+
+
+class TestLikeFuncs:
+    '''Test ones_like, zeros_like, empty_like and full_like'''
+
+    def compare_array_value(self, dz, value, fill_value):
+        if value is not None:
+            if fill_value:
+                # Conversion is close to what np.full_like uses
+                # but we  may want to convert directly in the future
+                # which may result in errors (where this does not).
+                z = np.array(value).astype(dz.dtype)
+                assert_(np.all(dz == z))
+            else:
+                assert_(np.all(dz == value))
+
+    def check_like_function(self, like_function, value, fill_value=False):
+        data = [
+            # Array scalars
+            (np.array(3.), None),
+            (np.array(3), 'f8'),
+            # 1D arrays
+            (np.arange(6, dtype='f4'), None),
+            (np.arange(6), 'c16'),
+            # 2D C-layout arrays
+            (np.arange(6).reshape(2, 3), None),
+            (np.arange(6).reshape(3, 2), 'i1'),
+            # 2D F-layout arrays
+            (np.arange(6).reshape((2, 3), order='F'), None),
+            (np.arange(6).reshape((3, 2), order='F'), 'i1'),
+            # 3D C-layout arrays
+            (np.arange(24).reshape(2, 3, 4), None),
+            (np.arange(24).reshape(4, 3, 2), 'f4'),
+            # 3D F-layout arrays
+            (np.arange(24).reshape((2, 3, 4), order='F'), None),
+            (np.arange(24).reshape((4, 3, 2), order='F'), 'f4'),
+            # 3D non-C/F-layout arrays
+            (np.arange(24).reshape(2, 3, 4).swapaxes(0, 1), None),
+            (np.arange(24).reshape(4, 3, 2).swapaxes(0, 1), '?'),
+               ]
+        shapes = [(), (5,), (5, 6,), (5, 6, 7,)]
+
+        if fill_value:
+            fill_kwarg = {'fill_value': value}
+        else:
+            fill_kwarg = {}
+        for d, dtype in data:
+            # default (K) order, dtype
+            dz = like_function(d, dtype=dtype, **fill_kwarg)
+            assert_equal(dz.shape, d.shape)
+            assert_equal(np.array(dz.strides) * d.dtype.itemsize,
+                         np.array(d.strides) * dz.dtype.itemsize)
+            assert_equal(d.flags.c_contiguous, dz.flags.c_contiguous)
+            assert_equal(d.flags.f_contiguous, dz.flags.f_contiguous)
+            if dtype is None:
+                assert_equal(dz.dtype, d.dtype)
+            else:
+                assert_equal(dz.dtype, np.dtype(dtype))
+            self.compare_array_value(dz, value, fill_value)
+
+            # C order, default dtype
+            dz = like_function(d, order='C', dtype=dtype, **fill_kwarg)
+            assert_equal(dz.shape, d.shape)
+            assert_(dz.flags.c_contiguous)
+            if dtype is None:
+                assert_equal(dz.dtype, d.dtype)
+            else:
+                assert_equal(dz.dtype, np.dtype(dtype))
+            self.compare_array_value(dz, value, fill_value)
+
+            # F order, default dtype
+            dz = like_function(d, order='F', dtype=dtype, **fill_kwarg)
+            assert_equal(dz.shape, d.shape)
+            assert_(dz.flags.f_contiguous)
+            if dtype is None:
+                assert_equal(dz.dtype, d.dtype)
+            else:
+                assert_equal(dz.dtype, np.dtype(dtype))
+            self.compare_array_value(dz, value, fill_value)
+
+            # A order
+            dz = like_function(d, order='A', dtype=dtype, **fill_kwarg)
+            assert_equal(dz.shape, d.shape)
+            if d.flags.f_contiguous:
+                assert_(dz.flags.f_contiguous)
+            else:
+                assert_(dz.flags.c_contiguous)
+            if dtype is None:
+                assert_equal(dz.dtype, d.dtype)
+            else:
+                assert_equal(dz.dtype, np.dtype(dtype))
+            self.compare_array_value(dz, value, fill_value)
+
+            # Test the 'shape' parameter
+            for s in shapes:
+                for o in 'CFA':
+                    sz = like_function(d, dtype=dtype, shape=s, order=o,
+                                       **fill_kwarg)
+                    assert_equal(sz.shape, s)
+                    if dtype is None:
+                        assert_equal(sz.dtype, d.dtype)
+                    else:
+                        assert_equal(sz.dtype, np.dtype(dtype))
+                    if o == 'C' or (o == 'A' and d.flags.c_contiguous):
+                        assert_(sz.flags.c_contiguous)
+                    elif o == 'F' or (o == 'A' and d.flags.f_contiguous):
+                        assert_(sz.flags.f_contiguous)
+                    self.compare_array_value(sz, value, fill_value)
+
+                if (d.ndim != len(s)):
+                    assert_equal(np.argsort(like_function(d, dtype=dtype,
+                                                          shape=s, order='K',
+                                                          **fill_kwarg).strides),
+                                 np.argsort(np.empty(s, dtype=dtype,
+                                                     order='C').strides))
+                else:
+                    assert_equal(np.argsort(like_function(d, dtype=dtype,
+                                                          shape=s, order='K',
+                                                          **fill_kwarg).strides),
+                                 np.argsort(d.strides))
+
+        # Test the 'subok' parameter
+        class MyNDArray(np.ndarray):
+            pass
+
+        a = np.array([[1, 2], [3, 4]]).view(MyNDArray)
+
+        b = like_function(a, **fill_kwarg)
+        assert_(type(b) is MyNDArray)
+
+        b = like_function(a, subok=False, **fill_kwarg)
+        assert_(type(b) is not MyNDArray)
+
+        # Test invalid dtype
+        with assert_raises(TypeError):
+            a = np.array(b"abc")
+            like_function(a, dtype="S-1", **fill_kwarg)
+
+    def test_ones_like(self):
+        self.check_like_function(np.ones_like, 1)
+
+    def test_zeros_like(self):
+        self.check_like_function(np.zeros_like, 0)
+
+    def test_empty_like(self):
+        self.check_like_function(np.empty_like, None)
+
+    def test_filled_like(self):
+        self.check_like_function(np.full_like, 0, True)
+        self.check_like_function(np.full_like, 1, True)
+        # Large integers may overflow, but using int64 is OK (casts)
+        # see also gh-27075
+        with pytest.raises(OverflowError):
+            np.full_like(np.ones(3, dtype=np.int8), 1000)
+        self.check_like_function(np.full_like, np.int64(1000), True)
+        self.check_like_function(np.full_like, 123.456, True)
+        # Inf to integer casts cause invalid-value errors: ignore them.
+        with np.errstate(invalid="ignore"):
+            self.check_like_function(np.full_like, np.inf, True)
+
+    @pytest.mark.parametrize('likefunc', [np.empty_like, np.full_like,
+                                          np.zeros_like, np.ones_like])
+    @pytest.mark.parametrize('dtype', [str, bytes])
+    def test_dtype_str_bytes(self, likefunc, dtype):
+        # Regression test for gh-19860
+        a = np.arange(16).reshape(2, 8)
+        b = a[:, ::2]  # Ensure b is not contiguous.
+        kwargs = {'fill_value': ''} if likefunc == np.full_like else {}
+        result = likefunc(b, dtype=dtype, **kwargs)
+        if dtype == str:
+            assert result.strides == (16, 4)
+        else:
+            # dtype is bytes
+            assert result.strides == (4, 1)
+
+
+class TestCorrelate:
+    def _setup(self, dt):
+        self.x = np.array([1, 2, 3, 4, 5], dtype=dt)
+        self.xs = np.arange(1, 20)[::3]
+        self.y = np.array([-1, -2, -3], dtype=dt)
+        self.z1 = np.array([-3., -8., -14., -20., -26., -14., -5.], dtype=dt)
+        self.z1_4 = np.array([-2., -5., -8., -11., -14., -5.], dtype=dt)
+        self.z1r = np.array([-15., -22., -22., -16., -10., -4., -1.], dtype=dt)
+        self.z2 = np.array([-5., -14., -26., -20., -14., -8., -3.], dtype=dt)
+        self.z2r = np.array([-1., -4., -10., -16., -22., -22., -15.], dtype=dt)
+        self.zs = np.array([-3., -14., -30., -48., -66., -84.,
+                           -102., -54., -19.], dtype=dt)
+
+    def test_float(self):
+        self._setup(float)
+        z = np.correlate(self.x, self.y, 'full')
+        assert_array_almost_equal(z, self.z1)
+        z = np.correlate(self.x, self.y[:-1], 'full')
+        assert_array_almost_equal(z, self.z1_4)
+        z = np.correlate(self.y, self.x, 'full')
+        assert_array_almost_equal(z, self.z2)
+        z = np.correlate(self.x[::-1], self.y, 'full')
+        assert_array_almost_equal(z, self.z1r)
+        z = np.correlate(self.y, self.x[::-1], 'full')
+        assert_array_almost_equal(z, self.z2r)
+        z = np.correlate(self.xs, self.y, 'full')
+        assert_array_almost_equal(z, self.zs)
+
+    def test_object(self):
+        self._setup(Decimal)
+        z = np.correlate(self.x, self.y, 'full')
+        assert_array_almost_equal(z, self.z1)
+        z = np.correlate(self.y, self.x, 'full')
+        assert_array_almost_equal(z, self.z2)
+
+    def test_no_overwrite(self):
+        d = np.ones(100)
+        k = np.ones(3)
+        np.correlate(d, k)
+        assert_array_equal(d, np.ones(100))
+        assert_array_equal(k, np.ones(3))
+
+    def test_complex(self):
+        x = np.array([1, 2, 3, 4 + 1j], dtype=complex)
+        y = np.array([-1, -2j, 3 + 1j], dtype=complex)
+        r_z = np.array([3 - 1j, 6, 8 + 1j, 11 + 5j, -5 + 8j, -4 - 1j], dtype=complex)
+        r_z = r_z[::-1].conjugate()
+        z = np.correlate(y, x, mode='full')
+        assert_array_almost_equal(z, r_z)
+
+    def test_zero_size(self):
+        with pytest.raises(ValueError):
+            np.correlate(np.array([]), np.ones(1000), mode='full')
+        with pytest.raises(ValueError):
+            np.correlate(np.ones(1000), np.array([]), mode='full')
+
+    def test_mode(self):
+        d = np.ones(100)
+        k = np.ones(3)
+        default_mode = np.correlate(d, k, mode='valid')
+        with assert_raises(ValueError):
+            np.correlate(d, k, mode='v')
+        # integer mode
+        with assert_raises(ValueError):
+            np.correlate(d, k, mode=-1)
+        # assert_array_equal(np.correlate(d, k, mode=), default_mode)
+        # illegal arguments
+        with assert_raises(TypeError):
+            np.correlate(d, k, mode=None)
+
+
+class TestConvolve:
+    def test_object(self):
+        d = [1.] * 100
+        k = [1.] * 3
+        assert_array_almost_equal(np.convolve(d, k)[2:-2], np.full(98, 3))
+
+    def test_no_overwrite(self):
+        d = np.ones(100)
+        k = np.ones(3)
+        np.convolve(d, k)
+        assert_array_equal(d, np.ones(100))
+        assert_array_equal(k, np.ones(3))
+
+    def test_mode(self):
+        d = np.ones(100)
+        k = np.ones(3)
+        default_mode = np.convolve(d, k, mode='full')
+        with assert_raises(ValueError):
+            np.convolve(d, k, mode='f')
+        # integer mode
+        with assert_raises(ValueError):
+            np.convolve(d, k, mode=-1)
+        assert_array_equal(np.convolve(d, k, mode=2), default_mode)
+        # illegal arguments
+        with assert_raises(TypeError):
+            np.convolve(d, k, mode=None)
+
+    def test_convolve_empty_input_error_message(self):
+        """
+        Test that convolve raises the correct error message when inputs are empty.
+        Regression test for gh-30272 (variable swapping bug).
+        """
+        with pytest.raises(ValueError, match="a cannot be empty"):
+            np.convolve(np.array([]), np.array([1, 2]))
+
+        with pytest.raises(ValueError, match="v cannot be empty"):
+            np.convolve(np.array([1, 2]), np.array([]))
+
+class TestArgwhere:
+
+    @pytest.mark.parametrize('nd', [0, 1, 2])
+    def test_nd(self, nd):
+        # get an nd array with multiple elements in every dimension
+        x = np.empty((2,) * nd, bool)
+
+        # none
+        x[...] = False
+        assert_equal(np.argwhere(x).shape, (0, nd))
+
+        # only one
+        x[...] = False
+        x.flat[0] = True
+        assert_equal(np.argwhere(x).shape, (1, nd))
+
+        # all but one
+        x[...] = True
+        x.flat[0] = False
+        assert_equal(np.argwhere(x).shape, (x.size - 1, nd))
+
+        # all
+        x[...] = True
+        assert_equal(np.argwhere(x).shape, (x.size, nd))
+
+    def test_2D(self):
+        x = np.arange(6).reshape((2, 3))
+        assert_array_equal(np.argwhere(x > 1),
+                           [[0, 2],
+                            [1, 0],
+                            [1, 1],
+                            [1, 2]])
+
+    def test_list(self):
+        assert_equal(np.argwhere([4, 0, 2, 1, 3]), [[0], [2], [3], [4]])
+
+
+class TestRoll:
+    def test_roll1d(self):
+        x = np.arange(10)
+        xr = np.roll(x, 2)
+        assert_equal(xr, np.array([8, 9, 0, 1, 2, 3, 4, 5, 6, 7]))
+
+    def test_roll2d(self):
+        x2 = np.reshape(np.arange(10), (2, 5))
+        x2r = np.roll(x2, 1)
+        assert_equal(x2r, np.array([[9, 0, 1, 2, 3], [4, 5, 6, 7, 8]]))
+
+        x2r = np.roll(x2, 1, axis=0)
+        assert_equal(x2r, np.array([[5, 6, 7, 8, 9], [0, 1, 2, 3, 4]]))
+
+        x2r = np.roll(x2, 1, axis=1)
+        assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]]))
+
+        # Roll multiple axes at once.
+        x2r = np.roll(x2, 1, axis=(0, 1))
+        assert_equal(x2r, np.array([[9, 5, 6, 7, 8], [4, 0, 1, 2, 3]]))
+
+        x2r = np.roll(x2, (1, 0), axis=(0, 1))
+        assert_equal(x2r, np.array([[5, 6, 7, 8, 9], [0, 1, 2, 3, 4]]))
+
+        x2r = np.roll(x2, (-1, 0), axis=(0, 1))
+        assert_equal(x2r, np.array([[5, 6, 7, 8, 9], [0, 1, 2, 3, 4]]))
+
+        x2r = np.roll(x2, (0, 1), axis=(0, 1))
+        assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]]))
+
+        x2r = np.roll(x2, (0, -1), axis=(0, 1))
+        assert_equal(x2r, np.array([[1, 2, 3, 4, 0], [6, 7, 8, 9, 5]]))
+
+        x2r = np.roll(x2, (1, 1), axis=(0, 1))
+        assert_equal(x2r, np.array([[9, 5, 6, 7, 8], [4, 0, 1, 2, 3]]))
+
+        x2r = np.roll(x2, (-1, -1), axis=(0, 1))
+        assert_equal(x2r, np.array([[6, 7, 8, 9, 5], [1, 2, 3, 4, 0]]))
+
+        # Roll the same axis multiple times.
+        x2r = np.roll(x2, 1, axis=(0, 0))
+        assert_equal(x2r, np.array([[0, 1, 2, 3, 4], [5, 6, 7, 8, 9]]))
+
+        x2r = np.roll(x2, 1, axis=(1, 1))
+        assert_equal(x2r, np.array([[3, 4, 0, 1, 2], [8, 9, 5, 6, 7]]))
+
+        # Roll more than one turn in either direction.
+        x2r = np.roll(x2, 6, axis=1)
+        assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]]))
+
+        x2r = np.roll(x2, -4, axis=1)
+        assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]]))
+
+    def test_roll_empty(self):
+        x = np.array([])
+        assert_equal(np.roll(x, 1), np.array([]))
+
+    def test_roll_unsigned_shift(self):
+        x = np.arange(4)
+        shift = np.uint16(2)
+        assert_equal(np.roll(x, shift), np.roll(x, 2))
+
+        shift = np.uint64(2**63 + 2)
+        assert_equal(np.roll(x, shift), np.roll(x, 2))
+
+    def test_roll_big_int(self):
+        x = np.arange(4)
+        assert_equal(np.roll(x, 2**100), x)
+
+
+class TestRollaxis:
+
+    # expected shape indexed by (axis, start) for array of
+    # shape (1, 2, 3, 4)
+    tgtshape = {(0, 0): (1, 2, 3, 4), (0, 1): (1, 2, 3, 4),
+                (0, 2): (2, 1, 3, 4), (0, 3): (2, 3, 1, 4),
+                (0, 4): (2, 3, 4, 1),
+                (1, 0): (2, 1, 3, 4), (1, 1): (1, 2, 3, 4),
+                (1, 2): (1, 2, 3, 4), (1, 3): (1, 3, 2, 4),
+                (1, 4): (1, 3, 4, 2),
+                (2, 0): (3, 1, 2, 4), (2, 1): (1, 3, 2, 4),
+                (2, 2): (1, 2, 3, 4), (2, 3): (1, 2, 3, 4),
+                (2, 4): (1, 2, 4, 3),
+                (3, 0): (4, 1, 2, 3), (3, 1): (1, 4, 2, 3),
+                (3, 2): (1, 2, 4, 3), (3, 3): (1, 2, 3, 4),
+                (3, 4): (1, 2, 3, 4)}
+
+    def test_exceptions(self):
+        a = np.arange(1 * 2 * 3 * 4).reshape(1, 2, 3, 4)
+        assert_raises(AxisError, np.rollaxis, a, -5, 0)
+        assert_raises(AxisError, np.rollaxis, a, 0, -5)
+        assert_raises(AxisError, np.rollaxis, a, 4, 0)
+        assert_raises(AxisError, np.rollaxis, a, 0, 5)
+
+    def test_results(self):
+        a = np.arange(1 * 2 * 3 * 4).reshape(1, 2, 3, 4).copy()
+        aind = np.indices(a.shape)
+        assert_(a.flags['OWNDATA'])
+        for (i, j) in self.tgtshape:
+            # positive axis, positive start
+            res = np.rollaxis(a, axis=i, start=j)
+            i0, i1, i2, i3 = aind[np.array(res.shape) - 1]
+            assert_(np.all(res[i0, i1, i2, i3] == a))
+            assert_(res.shape == self.tgtshape[(i, j)], str((i, j)))
+            assert_(not res.flags['OWNDATA'])
+
+            # negative axis, positive start
+            ip = i + 1
+            res = np.rollaxis(a, axis=-ip, start=j)
+            i0, i1, i2, i3 = aind[np.array(res.shape) - 1]
+            assert_(np.all(res[i0, i1, i2, i3] == a))
+            assert_(res.shape == self.tgtshape[(4 - ip, j)])
+            assert_(not res.flags['OWNDATA'])
+
+            # positive axis, negative start
+            jp = j + 1 if j < 4 else j
+            res = np.rollaxis(a, axis=i, start=-jp)
+            i0, i1, i2, i3 = aind[np.array(res.shape) - 1]
+            assert_(np.all(res[i0, i1, i2, i3] == a))
+            assert_(res.shape == self.tgtshape[(i, 4 - jp)])
+            assert_(not res.flags['OWNDATA'])
+
+            # negative axis, negative start
+            ip = i + 1
+            jp = j + 1 if j < 4 else j
+            res = np.rollaxis(a, axis=-ip, start=-jp)
+            i0, i1, i2, i3 = aind[np.array(res.shape) - 1]
+            assert_(np.all(res[i0, i1, i2, i3] == a))
+            assert_(res.shape == self.tgtshape[(4 - ip, 4 - jp)])
+            assert_(not res.flags['OWNDATA'])
+
+
+class TestMoveaxis:
+    def test_move_to_end(self):
+        x = np.random.randn(5, 6, 7)
+        for source, expected in [(0, (6, 7, 5)),
+                                 (1, (5, 7, 6)),
+                                 (2, (5, 6, 7)),
+                                 (-1, (5, 6, 7))]:
+            actual = np.moveaxis(x, source, -1).shape
+            assert_(actual, expected)
+
+    def test_move_new_position(self):
+        x = np.random.randn(1, 2, 3, 4)
+        for source, destination, expected in [
+                (0, 1, (2, 1, 3, 4)),
+                (1, 2, (1, 3, 2, 4)),
+                (1, -1, (1, 3, 4, 2)),
+                ]:
+            actual = np.moveaxis(x, source, destination).shape
+            assert_(actual, expected)
+
+    def test_preserve_order(self):
+        x = np.zeros((1, 2, 3, 4))
+        for source, destination in [
+                (0, 0),
+                (3, -1),
+                (-1, 3),
+                ([0, -1], [0, -1]),
+                ([2, 0], [2, 0]),
+                (range(4), range(4)),
+                ]:
+            actual = np.moveaxis(x, source, destination).shape
+            assert_(actual, (1, 2, 3, 4))
+
+    def test_move_multiples(self):
+        x = np.zeros((0, 1, 2, 3))
+        for source, destination, expected in [
+                ([0, 1], [2, 3], (2, 3, 0, 1)),
+                ([2, 3], [0, 1], (2, 3, 0, 1)),
+                ([0, 1, 2], [2, 3, 0], (2, 3, 0, 1)),
+                ([3, 0], [1, 0], (0, 3, 1, 2)),
+                ([0, 3], [0, 1], (0, 3, 1, 2)),
+                ]:
+            actual = np.moveaxis(x, source, destination).shape
+            assert_(actual, expected)
+
+    def test_errors(self):
+        x = np.random.randn(1, 2, 3)
+        assert_raises_regex(AxisError, 'source.*out of bounds',
+                            np.moveaxis, x, 3, 0)
+        assert_raises_regex(AxisError, 'source.*out of bounds',
+                            np.moveaxis, x, -4, 0)
+        assert_raises_regex(AxisError, 'destination.*out of bounds',
+                            np.moveaxis, x, 0, 5)
+        assert_raises_regex(ValueError, 'repeated axis in `source`',
+                            np.moveaxis, x, [0, 0], [0, 1])
+        assert_raises_regex(ValueError, 'repeated axis in `destination`',
+                            np.moveaxis, x, [0, 1], [1, 1])
+        assert_raises_regex(ValueError, 'must have the same number',
+                            np.moveaxis, x, 0, [0, 1])
+        assert_raises_regex(ValueError, 'must have the same number',
+                            np.moveaxis, x, [0, 1], [0])
+
+    def test_array_likes(self):
+        x = np.ma.zeros((1, 2, 3))
+        result = np.moveaxis(x, 0, 0)
+        assert_(x.shape, result.shape)
+        assert_(isinstance(result, np.ma.MaskedArray))
+
+        x = [1, 2, 3]
+        result = np.moveaxis(x, 0, 0)
+        assert_(x, list(result))
+        assert_(isinstance(result, np.ndarray))
+
+
+class TestCross:
+    @pytest.mark.filterwarnings(
+        "ignore:.*2-dimensional vectors.*:DeprecationWarning"
+    )
+    def test_2x2(self):
+        u = [1, 2]
+        v = [3, 4]
+        z = -2
+        cp = np.cross(u, v)
+        assert_equal(cp, z)
+        cp = np.cross(v, u)
+        assert_equal(cp, -z)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*2-dimensional vectors.*:DeprecationWarning"
+    )
+    def test_2x3(self):
+        u = [1, 2]
+        v = [3, 4, 5]
+        z = np.array([10, -5, -2])
+        cp = np.cross(u, v)
+        assert_equal(cp, z)
+        cp = np.cross(v, u)
+        assert_equal(cp, -z)
+
+    def test_3x3(self):
+        u = [1, 2, 3]
+        v = [4, 5, 6]
+        z = np.array([-3, 6, -3])
+        cp = np.cross(u, v)
+        assert_equal(cp, z)
+        cp = np.cross(v, u)
+        assert_equal(cp, -z)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*2-dimensional vectors.*:DeprecationWarning"
+    )
+    def test_broadcasting(self):
+        # Ticket #2624 (Trac #2032)
+        u = np.tile([1, 2], (11, 1))
+        v = np.tile([3, 4], (11, 1))
+        z = -2
+        assert_equal(np.cross(u, v), z)
+        assert_equal(np.cross(v, u), -z)
+        assert_equal(np.cross(u, u), 0)
+
+        u = np.tile([1, 2], (11, 1)).T
+        v = np.tile([3, 4, 5], (11, 1))
+        z = np.tile([10, -5, -2], (11, 1))
+        assert_equal(np.cross(u, v, axisa=0), z)
+        assert_equal(np.cross(v, u.T), -z)
+        assert_equal(np.cross(v, v), 0)
+
+        u = np.tile([1, 2, 3], (11, 1)).T
+        v = np.tile([3, 4], (11, 1)).T
+        z = np.tile([-12, 9, -2], (11, 1))
+        assert_equal(np.cross(u, v, axisa=0, axisb=0), z)
+        assert_equal(np.cross(v.T, u.T), -z)
+        assert_equal(np.cross(u.T, u.T), 0)
+
+        u = np.tile([1, 2, 3], (5, 1))
+        v = np.tile([4, 5, 6], (5, 1)).T
+        z = np.tile([-3, 6, -3], (5, 1))
+        assert_equal(np.cross(u, v, axisb=0), z)
+        assert_equal(np.cross(v.T, u), -z)
+        assert_equal(np.cross(u, u), 0)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*2-dimensional vectors.*:DeprecationWarning"
+    )
+    def test_broadcasting_shapes(self):
+        u = np.ones((2, 1, 3))
+        v = np.ones((5, 3))
+        assert_equal(np.cross(u, v).shape, (2, 5, 3))
+        u = np.ones((10, 3, 5))
+        v = np.ones((2, 5))
+        assert_equal(np.cross(u, v, axisa=1, axisb=0).shape, (10, 5, 3))
+        assert_raises(AxisError, np.cross, u, v, axisa=1, axisb=2)
+        assert_raises(AxisError, np.cross, u, v, axisa=3, axisb=0)
+        u = np.ones((10, 3, 5, 7))
+        v = np.ones((5, 7, 2))
+        assert_equal(np.cross(u, v, axisa=1, axisc=2).shape, (10, 5, 3, 7))
+        assert_raises(AxisError, np.cross, u, v, axisa=-5, axisb=2)
+        assert_raises(AxisError, np.cross, u, v, axisa=1, axisb=-4)
+        # gh-5885
+        u = np.ones((3, 4, 2))
+        for axisc in range(-2, 2):
+            assert_equal(np.cross(u, u, axisc=axisc).shape, (3, 4))
+
+    def test_uint8_int32_mixed_dtypes(self):
+        # regression test for gh-19138
+        u = np.array([[195, 8, 9]], np.uint8)
+        v = np.array([250, 166, 68], np.int32)
+        z = np.array([[950, 11010, -30370]], dtype=np.int32)
+        assert_equal(np.cross(v, u), z)
+        assert_equal(np.cross(u, v), -z)
+
+    @pytest.mark.parametrize("a, b", [(0, [1, 2]), ([1, 2], 3)])
+    def test_zero_dimension(self, a, b):
+        with pytest.raises(ValueError) as exc:
+            np.cross(a, b)
+        assert "At least one array has zero dimension" in str(exc.value)
+
+
+def test_outer_out_param():
+    arr1 = np.ones((5,))
+    arr2 = np.ones((2,))
+    arr3 = np.linspace(-2, 2, 5)
+    out1 = np.ndarray(shape=(5, 5))
+    out2 = np.ndarray(shape=(2, 5))
+    res1 = np.outer(arr1, arr3, out1)
+    assert_equal(res1, out1)
+    assert_equal(np.outer(arr2, arr3, out2), out2)
+
+
+class TestIndices:
+
+    def test_simple(self):
+        [x, y] = np.indices((4, 3))
+        assert_array_equal(x, np.array([[0, 0, 0],
+                                        [1, 1, 1],
+                                        [2, 2, 2],
+                                        [3, 3, 3]]))
+        assert_array_equal(y, np.array([[0, 1, 2],
+                                        [0, 1, 2],
+                                        [0, 1, 2],
+                                        [0, 1, 2]]))
+
+    def test_single_input(self):
+        [x] = np.indices((4,))
+        assert_array_equal(x, np.array([0, 1, 2, 3]))
+
+        [x] = np.indices((4,), sparse=True)
+        assert_array_equal(x, np.array([0, 1, 2, 3]))
+
+    def test_scalar_input(self):
+        assert_array_equal([], np.indices(()))
+        assert_array_equal([], np.indices((), sparse=True))
+        assert_array_equal([[]], np.indices((0,)))
+        assert_array_equal([[]], np.indices((0,), sparse=True))
+
+    def test_sparse(self):
+        [x, y] = np.indices((4, 3), sparse=True)
+        assert_array_equal(x, np.array([[0], [1], [2], [3]]))
+        assert_array_equal(y, np.array([[0, 1, 2]]))
+
+    @pytest.mark.parametrize("dtype", [np.int32, np.int64, np.float32, np.float64])
+    @pytest.mark.parametrize("dims", [(), (0,), (4, 3)])
+    def test_return_type(self, dtype, dims):
+        inds = np.indices(dims, dtype=dtype)
+        assert_(inds.dtype == dtype)
+
+        for arr in np.indices(dims, dtype=dtype, sparse=True):
+            assert_(arr.dtype == dtype)
+
+
+class TestRequire:
+    flag_names = ['C', 'C_CONTIGUOUS', 'CONTIGUOUS',
+                  'F', 'F_CONTIGUOUS', 'FORTRAN',
+                  'A', 'ALIGNED',
+                  'W', 'WRITEABLE',
+                  'O', 'OWNDATA']
+
+    def generate_all_false(self, dtype):
+        arr = np.zeros((2, 2), [('junk', 'i1'), ('a', dtype)])
+        arr.setflags(write=False)
+        a = arr['a']
+        assert_(not a.flags['C'])
+        assert_(not a.flags['F'])
+        assert_(not a.flags['O'])
+        assert_(not a.flags['W'])
+        assert_(not a.flags['A'])
+        return a
+
+    def set_and_check_flag(self, flag, dtype, arr):
+        if dtype is None:
+            dtype = arr.dtype
+        b = np.require(arr, dtype, [flag])
+        assert_(b.flags[flag])
+        assert_(b.dtype == dtype)
+
+        # a further call to np.require ought to return the same array
+        # unless OWNDATA is specified.
+        c = np.require(b, None, [flag])
+        if flag[0] != 'O':
+            assert_(c is b)
+        else:
+            assert_(c.flags[flag])
+
+    def test_require_each(self):
+
+        id = ['f8', 'i4']
+        fd = [None, 'f8', 'c16']
+        for idtype, fdtype, flag in itertools.product(id, fd, self.flag_names):
+            a = self.generate_all_false(idtype)
+            self.set_and_check_flag(flag, fdtype,  a)
+
+    def test_unknown_requirement(self):
+        a = self.generate_all_false('f8')
+        assert_raises(KeyError, np.require, a, None, 'Q')
+
+    def test_non_array_input(self):
+        a = np.require([1, 2, 3, 4], 'i4', ['C', 'A', 'O'])
+        assert_(a.flags['O'])
+        assert_(a.flags['C'])
+        assert_(a.flags['A'])
+        assert_(a.dtype == 'i4')
+        assert_equal(a, [1, 2, 3, 4])
+
+    def test_C_and_F_simul(self):
+        a = self.generate_all_false('f8')
+        assert_raises(ValueError, np.require, a, None, ['C', 'F'])
+
+    def test_ensure_array(self):
+        class ArraySubclass(np.ndarray):
+            pass
+
+        a = ArraySubclass((2, 2))
+        b = np.require(a, None, ['E'])
+        assert_(type(b) is np.ndarray)
+
+    def test_preserve_subtype(self):
+        class ArraySubclass(np.ndarray):
+            pass
+
+        for flag in self.flag_names:
+            a = ArraySubclass((2, 2))
+            self.set_and_check_flag(flag, None, a)
+
+
+class TestBroadcast:
+    def test_broadcast_in_args(self):
+        # gh-5881
+        arrs = [np.empty((6, 7)), np.empty((5, 6, 1)), np.empty((7,)),
+                np.empty((5, 1, 7))]
+        mits = [np.broadcast(*arrs),
+                np.broadcast(np.broadcast(*arrs[:0]), np.broadcast(*arrs[0:])),
+                np.broadcast(np.broadcast(*arrs[:1]), np.broadcast(*arrs[1:])),
+                np.broadcast(np.broadcast(*arrs[:2]), np.broadcast(*arrs[2:])),
+                np.broadcast(arrs[0], np.broadcast(*arrs[1:-1]), arrs[-1])]
+        for mit in mits:
+            assert_equal(mit.shape, (5, 6, 7))
+            assert_equal(mit.ndim, 3)
+            assert_equal(mit.nd, 3)
+            assert_equal(mit.numiter, 4)
+            for a, ia in zip(arrs, mit.iters):
+                assert_(a is ia.base)
+
+    def test_broadcast_single_arg(self):
+        # gh-6899
+        arrs = [np.empty((5, 6, 7))]
+        mit = np.broadcast(*arrs)
+        assert_equal(mit.shape, (5, 6, 7))
+        assert_equal(mit.ndim, 3)
+        assert_equal(mit.nd, 3)
+        assert_equal(mit.numiter, 1)
+        assert_(arrs[0] is mit.iters[0].base)
+
+    def test_number_of_arguments(self):
+        arr = np.empty((5,))
+        for j in range(70):
+            arrs = [arr] * j
+            if j > 64:
+                assert_raises(ValueError, np.broadcast, *arrs)
+            else:
+                mit = np.broadcast(*arrs)
+                assert_equal(mit.numiter, j)
+
+    def test_broadcast_error_kwargs(self):
+        # gh-13455
+        arrs = [np.empty((5, 6, 7))]
+        mit = np.broadcast(*arrs)
+        mit2 = np.broadcast(*arrs, **{})  # noqa: PIE804
+        assert_equal(mit.shape, mit2.shape)
+        assert_equal(mit.ndim, mit2.ndim)
+        assert_equal(mit.nd, mit2.nd)
+        assert_equal(mit.numiter, mit2.numiter)
+        assert_(mit.iters[0].base is mit2.iters[0].base)
+
+        assert_raises(ValueError, np.broadcast, 1, x=1)
+
+    def test_shape_mismatch_error_message(self):
+        with pytest.raises(ValueError, match=r"arg 0 with shape \(1, 3\) and "
+                                             r"arg 2 with shape \(2,\)"):
+            np.broadcast([[1, 2, 3]], [[4], [5]], [6, 7])
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    @pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+    def test_signatures(self):
+        sig_new = inspect.signature(np.broadcast)
+        assert len(sig_new.parameters) == 1
+        assert "arrays" in sig_new.parameters
+        assert sig_new.parameters["arrays"].kind == inspect.Parameter.VAR_POSITIONAL
+
+        sig_reset = inspect.signature(np.broadcast.reset)
+        assert len(sig_reset.parameters) == 1
+        assert "self" in sig_reset.parameters
+        assert sig_reset.parameters["self"].kind == inspect.Parameter.POSITIONAL_ONLY
+
+
+class TestKeepdims:
+
+    class sub_array(np.ndarray):
+        def sum(self, axis=None, dtype=None, out=None):
+            return np.ndarray.sum(self, axis, dtype, out, keepdims=True)
+
+    def test_raise(self):
+        sub_class = self.sub_array
+        x = np.arange(30).view(sub_class)
+        assert_raises(TypeError, np.sum, x, keepdims=True)
+
+
+class TestTensordot:
+
+    def test_rejects_duplicate_axes(self):
+        a = np.ones((2, 3, 3))
+        b = np.ones((3, 3, 4))
+        with pytest.raises(ValueError):
+            np.tensordot(a, b, axes=([1, 1], [0, 0]))
+
+    def test_zero_dimension(self):
+        # Test resolution to issue #5663
+        a = np.ndarray((3, 0))
+        b = np.ndarray((0, 4))
+        td = np.tensordot(a, b, (1, 0))
+        assert_array_equal(td, np.dot(a, b))
+        assert_array_equal(td, np.einsum('ij,jk', a, b))
+
+    def test_zero_dimensional(self):
+        # gh-12130
+        arr_0d = np.array(1)
+        # contracting no axes is well defined
+        ret = np.tensordot(arr_0d, arr_0d, ([], []))
+        assert_array_equal(ret, arr_0d)
+
+
+class TestAsType:
+
+    def test_astype(self):
+        data = [[1, 2], [3, 4]]
+        actual = np.astype(
+            np.array(data, dtype=np.int64), np.uint32
+        )
+        expected = np.array(data, dtype=np.uint32)
+
+        assert_array_equal(actual, expected)
+        assert_equal(actual.dtype, expected.dtype)
+
+        assert np.shares_memory(
+            actual, np.astype(actual, actual.dtype, copy=False)
+        )
+
+        actual = np.astype(np.int64(10), np.float64)
+        expected = np.float64(10)
+        assert_equal(actual, expected)
+        assert_equal(actual.dtype, expected.dtype)
+
+        with pytest.raises(TypeError, match="Input should be a NumPy array"):
+            np.astype(data, np.float64)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_numerictypes.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_numerictypes.py
new file mode 100644
index 0000000000000000000000000000000000000000..737db5f2c64e5563a4b3802c589f6e75060130e2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_numerictypes.py
@@ -0,0 +1,650 @@
+import itertools
+import sys
+
+import pytest
+
+import numpy as np
+import numpy._core.numerictypes as nt
+from numpy._core.numerictypes import issctype, maximum_sctype, sctype2char, sctypes
+from numpy.testing import (
+    IS_PYPY,
+    assert_,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+# This is the structure of the table used for plain objects:
+#
+# +-+-+-+
+# |x|y|z|
+# +-+-+-+
+
+# Structure of a plain array description:
+Pdescr = [
+    ('x', 'i4', (2,)),
+    ('y', 'f8', (2, 2)),
+    ('z', 'u1')]
+
+# A plain list of tuples with values for testing:
+PbufferT = [
+    # x     y                  z
+    ([3, 2], [[6., 4.], [6., 4.]], 8),
+    ([4, 3], [[7., 5.], [7., 5.]], 9),
+    ]
+
+
+# This is the structure of the table used for nested objects (DON'T PANIC!):
+#
+# +-+---------------------------------+-----+----------+-+-+
+# |x|Info                             |color|info      |y|z|
+# | +-----+--+----------------+----+--+     +----+-----+ | |
+# | |value|y2|Info2           |name|z2|     |Name|Value| | |
+# | |     |  +----+-----+--+--+    |  |     |    |     | | |
+# | |     |  |name|value|y3|z3|    |  |     |    |     | | |
+# +-+-----+--+----+-----+--+--+----+--+-----+----+-----+-+-+
+#
+
+# The corresponding nested array description:
+Ndescr = [
+    ('x', 'i4', (2,)),
+    ('Info', [
+        ('value', 'c16'),
+        ('y2', 'f8'),
+        ('Info2', [
+            ('name', 'S2'),
+            ('value', 'c16', (2,)),
+            ('y3', 'f8', (2,)),
+            ('z3', 'u4', (2,))]),
+        ('name', 'S2'),
+        ('z2', 'b1')]),
+    ('color', 'S2'),
+    ('info', [
+        ('Name', 'U8'),
+        ('Value', 'c16')]),
+    ('y', 'f8', (2, 2)),
+    ('z', 'u1')]
+
+NbufferT = [
+    # x     Info                                                color info        y                  z
+    #       value y2 Info2                            name z2         Name Value
+    #                name   value    y3       z3
+    ([3, 2], (6j, 6., (b'nn', [6j, 4j], [6., 4.], [1, 2]), b'NN', True),
+     b'cc', ('NN', 6j), [[6., 4.], [6., 4.]], 8),
+    ([4, 3], (7j, 7., (b'oo', [7j, 5j], [7., 5.], [2, 1]), b'OO', False),
+     b'dd', ('OO', 7j), [[7., 5.], [7., 5.]], 9),
+    ]
+
+
+byteorder = {'little': '<', 'big': '>'}[sys.byteorder]
+
+def normalize_descr(descr):
+    "Normalize a description adding the platform byteorder."
+
+    out = []
+    for item in descr:
+        dtype = item[1]
+        if isinstance(dtype, str):
+            if dtype[0] not in ['|', '<', '>']:
+                onebyte = dtype[1:] == "1"
+                if onebyte or dtype[0] in ['S', 'V', 'b']:
+                    dtype = "|" + dtype
+                else:
+                    dtype = byteorder + dtype
+            if len(item) > 2 and np.prod(item[2]) > 1:
+                nitem = (item[0], dtype, item[2])
+            else:
+                nitem = (item[0], dtype)
+            out.append(nitem)
+        elif isinstance(dtype, list):
+            l = normalize_descr(dtype)
+            out.append((item[0], l))
+        else:
+            raise ValueError(f"Expected a str or list and got {type(item)}")
+    return out
+
+
+############################################################
+#    Creation tests
+############################################################
+
+class CreateZeros:
+    """Check the creation of heterogeneous arrays zero-valued"""
+
+    def test_zeros0D(self):
+        """Check creation of 0-dimensional objects"""
+        h = np.zeros((), dtype=self._descr)
+        assert_(normalize_descr(self._descr) == h.dtype.descr)
+        assert_(h.dtype.fields['x'][0].name[:4] == 'void')
+        assert_(h.dtype.fields['x'][0].char == 'V')
+        assert_(h.dtype.fields['x'][0].type == np.void)
+        # A small check that data is ok
+        assert_equal(h['z'], np.zeros((), dtype='u1'))
+
+    def test_zerosSD(self):
+        """Check creation of single-dimensional objects"""
+        h = np.zeros((2,), dtype=self._descr)
+        assert_(normalize_descr(self._descr) == h.dtype.descr)
+        assert_(h.dtype['y'].name[:4] == 'void')
+        assert_(h.dtype['y'].char == 'V')
+        assert_(h.dtype['y'].type == np.void)
+        # A small check that data is ok
+        assert_equal(h['z'], np.zeros((2,), dtype='u1'))
+
+    def test_zerosMD(self):
+        """Check creation of multi-dimensional objects"""
+        h = np.zeros((2, 3), dtype=self._descr)
+        assert_(normalize_descr(self._descr) == h.dtype.descr)
+        assert_(h.dtype['z'].name == 'uint8')
+        assert_(h.dtype['z'].char == 'B')
+        assert_(h.dtype['z'].type == np.uint8)
+        # A small check that data is ok
+        assert_equal(h['z'], np.zeros((2, 3), dtype='u1'))
+
+
+class TestCreateZerosPlain(CreateZeros):
+    """Check the creation of heterogeneous arrays zero-valued (plain)"""
+    _descr = Pdescr
+
+class TestCreateZerosNested(CreateZeros):
+    """Check the creation of heterogeneous arrays zero-valued (nested)"""
+    _descr = Ndescr
+
+
+class CreateValues:
+    """Check the creation of heterogeneous arrays with values"""
+
+    def test_tuple(self):
+        """Check creation from tuples"""
+        h = np.array(self._buffer, dtype=self._descr)
+        assert_(normalize_descr(self._descr) == h.dtype.descr)
+        if self.multiple_rows:
+            assert_(h.shape == (2,))
+        else:
+            assert_(h.shape == ())
+
+    def test_list_of_tuple(self):
+        """Check creation from list of tuples"""
+        h = np.array([self._buffer], dtype=self._descr)
+        assert_(normalize_descr(self._descr) == h.dtype.descr)
+        if self.multiple_rows:
+            assert_(h.shape == (1, 2))
+        else:
+            assert_(h.shape == (1,))
+
+    def test_list_of_list_of_tuple(self):
+        """Check creation from list of list of tuples"""
+        h = np.array([[self._buffer]], dtype=self._descr)
+        assert_(normalize_descr(self._descr) == h.dtype.descr)
+        if self.multiple_rows:
+            assert_(h.shape == (1, 1, 2))
+        else:
+            assert_(h.shape == (1, 1))
+
+
+class TestCreateValuesPlainSingle(CreateValues):
+    """Check the creation of heterogeneous arrays (plain, single row)"""
+    _descr = Pdescr
+    multiple_rows = 0
+    _buffer = PbufferT[0]
+
+class TestCreateValuesPlainMultiple(CreateValues):
+    """Check the creation of heterogeneous arrays (plain, multiple rows)"""
+    _descr = Pdescr
+    multiple_rows = 1
+    _buffer = PbufferT
+
+class TestCreateValuesNestedSingle(CreateValues):
+    """Check the creation of heterogeneous arrays (nested, single row)"""
+    _descr = Ndescr
+    multiple_rows = 0
+    _buffer = NbufferT[0]
+
+class TestCreateValuesNestedMultiple(CreateValues):
+    """Check the creation of heterogeneous arrays (nested, multiple rows)"""
+    _descr = Ndescr
+    multiple_rows = 1
+    _buffer = NbufferT
+
+
+############################################################
+#    Reading tests
+############################################################
+
+class ReadValuesPlain:
+    """Check the reading of values in heterogeneous arrays (plain)"""
+
+    def test_access_fields(self):
+        h = np.array(self._buffer, dtype=self._descr)
+        if not self.multiple_rows:
+            assert_(h.shape == ())
+            assert_equal(h['x'], np.array(self._buffer[0], dtype='i4'))
+            assert_equal(h['y'], np.array(self._buffer[1], dtype='f8'))
+            assert_equal(h['z'], np.array(self._buffer[2], dtype='u1'))
+        else:
+            assert_(len(h) == 2)
+            assert_equal(h['x'], np.array([self._buffer[0][0],
+                                             self._buffer[1][0]], dtype='i4'))
+            assert_equal(h['y'], np.array([self._buffer[0][1],
+                                             self._buffer[1][1]], dtype='f8'))
+            assert_equal(h['z'], np.array([self._buffer[0][2],
+                                             self._buffer[1][2]], dtype='u1'))
+
+
+class TestReadValuesPlainSingle(ReadValuesPlain):
+    """Check the creation of heterogeneous arrays (plain, single row)"""
+    _descr = Pdescr
+    multiple_rows = 0
+    _buffer = PbufferT[0]
+
+class TestReadValuesPlainMultiple(ReadValuesPlain):
+    """Check the values of heterogeneous arrays (plain, multiple rows)"""
+    _descr = Pdescr
+    multiple_rows = 1
+    _buffer = PbufferT
+
+class ReadValuesNested:
+    """Check the reading of values in heterogeneous arrays (nested)"""
+
+    def test_access_top_fields(self):
+        """Check reading the top fields of a nested array"""
+        h = np.array(self._buffer, dtype=self._descr)
+        if not self.multiple_rows:
+            assert_(h.shape == ())
+            assert_equal(h['x'], np.array(self._buffer[0], dtype='i4'))
+            assert_equal(h['y'], np.array(self._buffer[4], dtype='f8'))
+            assert_equal(h['z'], np.array(self._buffer[5], dtype='u1'))
+        else:
+            assert_(len(h) == 2)
+            assert_equal(h['x'], np.array([self._buffer[0][0],
+                                           self._buffer[1][0]], dtype='i4'))
+            assert_equal(h['y'], np.array([self._buffer[0][4],
+                                           self._buffer[1][4]], dtype='f8'))
+            assert_equal(h['z'], np.array([self._buffer[0][5],
+                                           self._buffer[1][5]], dtype='u1'))
+
+    def test_nested1_acessors(self):
+        """Check reading the nested fields of a nested array (1st level)"""
+        h = np.array(self._buffer, dtype=self._descr)
+        if not self.multiple_rows:
+            assert_equal(h['Info']['value'],
+                         np.array(self._buffer[1][0], dtype='c16'))
+            assert_equal(h['Info']['y2'],
+                         np.array(self._buffer[1][1], dtype='f8'))
+            assert_equal(h['info']['Name'],
+                         np.array(self._buffer[3][0], dtype='U2'))
+            assert_equal(h['info']['Value'],
+                         np.array(self._buffer[3][1], dtype='c16'))
+        else:
+            assert_equal(h['Info']['value'],
+                         np.array([self._buffer[0][1][0],
+                                self._buffer[1][1][0]],
+                                dtype='c16'))
+            assert_equal(h['Info']['y2'],
+                         np.array([self._buffer[0][1][1],
+                                self._buffer[1][1][1]],
+                                dtype='f8'))
+            assert_equal(h['info']['Name'],
+                         np.array([self._buffer[0][3][0],
+                                self._buffer[1][3][0]],
+                               dtype='U2'))
+            assert_equal(h['info']['Value'],
+                         np.array([self._buffer[0][3][1],
+                                self._buffer[1][3][1]],
+                               dtype='c16'))
+
+    def test_nested2_acessors(self):
+        """Check reading the nested fields of a nested array (2nd level)"""
+        h = np.array(self._buffer, dtype=self._descr)
+        if not self.multiple_rows:
+            assert_equal(h['Info']['Info2']['value'],
+                         np.array(self._buffer[1][2][1], dtype='c16'))
+            assert_equal(h['Info']['Info2']['z3'],
+                         np.array(self._buffer[1][2][3], dtype='u4'))
+        else:
+            assert_equal(h['Info']['Info2']['value'],
+                         np.array([self._buffer[0][1][2][1],
+                                self._buffer[1][1][2][1]],
+                               dtype='c16'))
+            assert_equal(h['Info']['Info2']['z3'],
+                         np.array([self._buffer[0][1][2][3],
+                                self._buffer[1][1][2][3]],
+                               dtype='u4'))
+
+    def test_nested1_descriptor(self):
+        """Check access nested descriptors of a nested array (1st level)"""
+        h = np.array(self._buffer, dtype=self._descr)
+        assert_(h.dtype['Info']['value'].name == 'complex128')
+        assert_(h.dtype['Info']['y2'].name == 'float64')
+        assert_(h.dtype['info']['Name'].name == 'str256')
+        assert_(h.dtype['info']['Value'].name == 'complex128')
+
+    def test_nested2_descriptor(self):
+        """Check access nested descriptors of a nested array (2nd level)"""
+        h = np.array(self._buffer, dtype=self._descr)
+        assert_(h.dtype['Info']['Info2']['value'].name == 'void256')
+        assert_(h.dtype['Info']['Info2']['z3'].name == 'void64')
+
+
+class TestReadValuesNestedSingle(ReadValuesNested):
+    """Check the values of heterogeneous arrays (nested, single row)"""
+    _descr = Ndescr
+    multiple_rows = False
+    _buffer = NbufferT[0]
+
+class TestReadValuesNestedMultiple(ReadValuesNested):
+    """Check the values of heterogeneous arrays (nested, multiple rows)"""
+    _descr = Ndescr
+    multiple_rows = True
+    _buffer = NbufferT
+
+class TestEmptyField:
+    def test_assign(self):
+        a = np.arange(10, dtype=np.float32)
+        a.dtype = [("int",   "<0i4"), ("float", "<2f4")]
+        assert_(a['int'].shape == (5, 0))
+        assert_(a['float'].shape == (5, 2))
+
+
+class TestMultipleFields:
+    def _bad_call(self):
+        ary = np.array([(1, 2, 3, 4), (5, 6, 7, 8)], dtype='i4,f4,i2,c8')
+        return ary['f0', 'f1']
+
+    def test_no_tuple(self):
+        assert_raises(IndexError, self._bad_call)
+
+    def test_return(self):
+        ary = np.array([(1, 2, 3, 4), (5, 6, 7, 8)], dtype='i4,f4,i2,c8')
+        res = ary[['f0', 'f2']].tolist()
+        assert_(res == [(1, 3), (5, 7)])
+
+
+class TestIsSubDType:
+    # scalar types can be promoted into dtypes
+    wrappers = [np.dtype, lambda x: x]
+
+    def test_both_abstract(self):
+        assert_(np.issubdtype(np.floating, np.inexact))
+        assert_(not np.issubdtype(np.inexact, np.floating))
+
+    def test_same(self):
+        for cls in (np.float32, np.int32):
+            for w1, w2 in itertools.product(self.wrappers, repeat=2):
+                assert_(np.issubdtype(w1(cls), w2(cls)))
+
+    def test_subclass(self):
+        # note we cannot promote floating to a dtype, as it would turn into a
+        # concrete type
+        for w in self.wrappers:
+            assert_(np.issubdtype(w(np.float32), np.floating))
+            assert_(np.issubdtype(w(np.float64), np.floating))
+
+    def test_subclass_backwards(self):
+        for w in self.wrappers:
+            assert_(not np.issubdtype(np.floating, w(np.float32)))
+            assert_(not np.issubdtype(np.floating, w(np.float64)))
+
+    def test_sibling_class(self):
+        for w1, w2 in itertools.product(self.wrappers, repeat=2):
+            assert_(not np.issubdtype(w1(np.float32), w2(np.float64)))
+            assert_(not np.issubdtype(w1(np.float64), w2(np.float32)))
+
+    def test_nondtype_nonscalartype(self):
+        # See gh-14619 and gh-9505 which introduced the deprecation to fix
+        # this. These tests are directly taken from gh-9505
+        assert not np.issubdtype(np.float32, 'float64')
+        assert not np.issubdtype(np.float32, 'f8')
+        assert not np.issubdtype(np.int32, str)
+        assert not np.issubdtype(np.int32, 'int64')
+        assert not np.issubdtype(np.str_, 'void')
+        # for the following the correct spellings are
+        # np.integer, np.floating, or np.complexfloating respectively:
+        assert not np.issubdtype(np.int8, int)  # np.int8 is never np.int_
+        assert not np.issubdtype(np.float32, float)
+        assert not np.issubdtype(np.complex64, complex)
+        assert not np.issubdtype(np.float32, "float")
+        assert not np.issubdtype(np.float64, "f")
+
+        # Test the same for the correct first datatype and abstract one
+        # in the case of int, float, complex:
+        assert np.issubdtype(np.float64, 'float64')
+        assert np.issubdtype(np.float64, 'f8')
+        assert np.issubdtype(np.str_, str)
+        assert np.issubdtype(np.int64, 'int64')
+        assert np.issubdtype(np.void, 'void')
+        assert np.issubdtype(np.int8, np.integer)
+        assert np.issubdtype(np.float32, np.floating)
+        assert np.issubdtype(np.complex64, np.complexfloating)
+        assert np.issubdtype(np.float64, "float")
+        assert np.issubdtype(np.float32, "f")
+
+
+class TestIsDType:
+    """
+    Check correctness of `np.isdtype`. The test considers different argument
+    configurations: `np.isdtype(dtype, k1)` and `np.isdtype(dtype, (k1, k2))`
+    with concrete dtypes and dtype groups.
+    """
+    dtype_group_dict = {
+        "signed integer": sctypes["int"],
+        "unsigned integer": sctypes["uint"],
+        "integral": sctypes["int"] + sctypes["uint"],
+        "real floating": sctypes["float"],
+        "complex floating": sctypes["complex"],
+        "numeric": (
+            sctypes["int"] + sctypes["uint"] + sctypes["float"] +
+            sctypes["complex"]
+        )
+    }
+
+    @pytest.mark.parametrize(
+        "dtype,close_dtype",
+        [
+            (np.int64, np.int32), (np.uint64, np.uint32),
+            (np.float64, np.float32), (np.complex128, np.complex64)
+        ]
+    )
+    @pytest.mark.parametrize(
+        "dtype_group",
+        [
+            None, "signed integer", "unsigned integer", "integral",
+            "real floating", "complex floating", "numeric"
+        ]
+    )
+    def test_isdtype(self, dtype, close_dtype, dtype_group):
+        # First check if same dtypes return `true` and different ones
+        # give `false` (even if they're close in the dtype hierarchy!)
+        if dtype_group is None:
+            assert np.isdtype(dtype, dtype)
+            assert not np.isdtype(dtype, close_dtype)
+            assert np.isdtype(dtype, (dtype, close_dtype))
+
+        # Check that dtype and a dtype group that it belongs to
+        # return `true`, and `false` otherwise.
+        elif dtype in self.dtype_group_dict[dtype_group]:
+            assert np.isdtype(dtype, dtype_group)
+            assert np.isdtype(dtype, (close_dtype, dtype_group))
+        else:
+            assert not np.isdtype(dtype, dtype_group)
+
+    def test_isdtype_invalid_args(self):
+        with assert_raises_regex(TypeError, r".*must be a NumPy dtype.*"):
+            np.isdtype("int64", np.int64)
+        with assert_raises_regex(TypeError, r".*kind argument must.*"):
+            np.isdtype(np.int64, 1)
+        with assert_raises_regex(ValueError, r".*not a known kind name.*"):
+            np.isdtype(np.int64, "int64")
+
+    def test_sctypes_complete(self):
+        # issue 26439: int32/intc were masking each other on 32-bit builds
+        assert np.int32 in sctypes['int']
+        assert np.intc in sctypes['int']
+        assert np.int64 in sctypes['int']
+        assert np.uint32 in sctypes['uint']
+        assert np.uintc in sctypes['uint']
+        assert np.uint64 in sctypes['uint']
+
+class TestSctypeDict:
+    def test_longdouble(self):
+        assert_(np._core.sctypeDict['float64'] is not np.longdouble)
+        assert_(np._core.sctypeDict['complex128'] is not np.clongdouble)
+
+    def test_ulong(self):
+        assert np._core.sctypeDict['ulong'] is np.ulong
+        assert np.dtype(np.ulong) is np.dtype("ulong")
+        assert np.dtype(np.ulong).itemsize == np.dtype(np.long).itemsize
+
+
+@pytest.mark.filterwarnings("ignore:.*maximum_sctype.*:DeprecationWarning")
+class TestMaximumSctype:
+
+    # note that parametrizing with sctype['int'] and similar would skip types
+    # with the same size (gh-11923)
+
+    @pytest.mark.parametrize(
+        't', [np.byte, np.short, np.intc, np.long, np.longlong]
+    )
+    def test_int(self, t):
+        assert_equal(maximum_sctype(t), np._core.sctypes['int'][-1])
+
+    @pytest.mark.parametrize(
+        't', [np.ubyte, np.ushort, np.uintc, np.ulong, np.ulonglong]
+    )
+    def test_uint(self, t):
+        assert_equal(maximum_sctype(t), np._core.sctypes['uint'][-1])
+
+    @pytest.mark.parametrize('t', [np.half, np.single, np.double, np.longdouble])
+    def test_float(self, t):
+        assert_equal(maximum_sctype(t), np._core.sctypes['float'][-1])
+
+    @pytest.mark.parametrize('t', [np.csingle, np.cdouble, np.clongdouble])
+    def test_complex(self, t):
+        assert_equal(maximum_sctype(t), np._core.sctypes['complex'][-1])
+
+    @pytest.mark.parametrize('t', [np.bool, np.object_, np.str_, np.bytes_,
+                                   np.void])
+    def test_other(self, t):
+        assert_equal(maximum_sctype(t), t)
+
+
+class Test_sctype2char:
+    # This function is old enough that we're really just documenting the quirks
+    # at this point.
+
+    def test_scalar_type(self):
+        assert_equal(sctype2char(np.double), 'd')
+        assert_equal(sctype2char(np.long), 'l')
+        assert_equal(sctype2char(np.int_), np.array(0).dtype.char)
+        assert_equal(sctype2char(np.str_), 'U')
+        assert_equal(sctype2char(np.bytes_), 'S')
+
+    def test_other_type(self):
+        assert_equal(sctype2char(float), 'd')
+        assert_equal(sctype2char(list), 'O')
+        assert_equal(sctype2char(np.ndarray), 'O')
+
+    def test_third_party_scalar_type(self):
+        from numpy._core._rational_tests import rational
+        assert_raises(KeyError, sctype2char, rational)
+        assert_raises(KeyError, sctype2char, rational(1))
+
+    def test_array_instance(self):
+        assert_equal(sctype2char(np.array([1.0, 2.0])), 'd')
+
+    def test_abstract_type(self):
+        assert_raises(KeyError, sctype2char, np.floating)
+
+    def test_non_type(self):
+        assert_raises(ValueError, sctype2char, 1)
+
+@pytest.mark.parametrize("rep, expected", [
+    (np.int32, True),
+    (list, False),
+    (1.1, False),
+    (str, True),
+    (np.dtype(np.float64), True),
+    (np.dtype((np.int16, (3, 4))), True),
+    (np.dtype([('a', np.int8)]), True),
+    ])
+def test_issctype(rep, expected):
+    # ensure proper identification of scalar
+    # data-types by issctype()
+    actual = issctype(rep)
+    assert type(actual) is bool
+    assert_equal(actual, expected)
+
+
+@pytest.mark.skipif(sys.flags.optimize > 1,
+                    reason="no docstrings present to inspect when PYTHONOPTIMIZE/Py_OptimizeFlag > 1")
+@pytest.mark.xfail(IS_PYPY,
+                   reason="PyPy cannot modify tp_doc after PyType_Ready")
+class TestDocStrings:
+    def test_platform_dependent_aliases(self):
+        if np.int64 is np.int_:
+            assert_('int64' in np.int_.__doc__)
+        elif np.int64 is np.longlong:
+            assert_('int64' in np.longlong.__doc__)
+
+
+class TestScalarTypeNames:
+    # gh-9799
+
+    numeric_types = [
+        np.byte, np.short, np.intc, np.long, np.longlong,
+        np.ubyte, np.ushort, np.uintc, np.ulong, np.ulonglong,
+        np.half, np.single, np.double, np.longdouble,
+        np.csingle, np.cdouble, np.clongdouble,
+    ]
+
+    def test_names_are_unique(self):
+        # none of the above may be aliases for each other
+        assert len(set(self.numeric_types)) == len(self.numeric_types)
+
+        # names must be unique
+        names = [t.__name__ for t in self.numeric_types]
+        assert len(set(names)) == len(names)
+
+    @pytest.mark.parametrize('t', numeric_types)
+    def test_names_reflect_attributes(self, t):
+        """ Test that names correspond to where the type is under ``np.`` """
+        assert getattr(np, t.__name__) is t
+
+    @pytest.mark.parametrize('t', numeric_types)
+    def test_names_are_undersood_by_dtype(self, t):
+        """ Test the dtype constructor maps names back to the type """
+        assert np.dtype(t.__name__).type is t
+
+
+class TestScalarTypeOrder:
+    @pytest.mark.parametrize(('a', 'b'), [
+        # signedinteger
+        (np.byte, np.short),
+        (np.short, np.intc),
+        (np.intc, np.long),
+        (np.long, np.longlong),
+        # unsignedinteger
+        (np.ubyte, np.ushort),
+        (np.ushort, np.uintc),
+        (np.uintc, np.ulong),
+        (np.ulong, np.ulonglong),
+        # floating
+        (np.half, np.single),
+        (np.single, np.double),
+        (np.double, np.longdouble),
+        # complexfloating
+        (np.csingle, np.cdouble),
+        (np.cdouble, np.clongdouble),
+        # flexible
+        (np.bytes_, np.str_),
+        (np.str_, np.void),
+        # bouncy castles
+        (np.datetime64, np.timedelta64),
+    ])
+    def test_stable_ordering(self, a: type[np.generic], b: type[np.generic]):
+        assert np.ScalarType.index(a) <= np.ScalarType.index(b)
+
+
+class TestBoolDefinition:
+    def test_bool_definition(self):
+        assert nt.bool is np.bool
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_overrides.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_overrides.py
new file mode 100644
index 0000000000000000000000000000000000000000..bbc2f045800863a55434e8fc9fcfde1ec6e4f310
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_overrides.py
@@ -0,0 +1,800 @@
+import inspect
+import os
+import pickle
+import sys
+import tempfile
+from io import StringIO
+from unittest import mock
+
+import pytest
+
+import numpy as np
+from numpy._core.overrides import (
+    _get_implementing_args,
+    array_function_dispatch,
+    verify_matching_signatures,
+)
+from numpy.testing import assert_, assert_equal, assert_raises, assert_raises_regex
+from numpy.testing.overrides import get_overridable_numpy_array_functions
+
+
+def _return_not_implemented(self, *args, **kwargs):
+    return NotImplemented
+
+
+# need to define this at the top level to test pickling
+@array_function_dispatch(lambda array: (array,))
+def dispatched_one_arg(array):
+    """Docstring."""
+    return 'original'
+
+
+@array_function_dispatch(lambda array1, array2: (array1, array2))
+def dispatched_two_arg(array1, array2):
+    """Docstring."""
+    return 'original'
+
+
+class TestGetImplementingArgs:
+
+    def test_ndarray(self):
+        array = np.array(1)
+
+        args = _get_implementing_args([array])
+        assert_equal(list(args), [array])
+
+        args = _get_implementing_args([array, array])
+        assert_equal(list(args), [array])
+
+        args = _get_implementing_args([array, 1])
+        assert_equal(list(args), [array])
+
+        args = _get_implementing_args([1, array])
+        assert_equal(list(args), [array])
+
+    def test_ndarray_subclasses(self):
+
+        class OverrideSub(np.ndarray):
+            __array_function__ = _return_not_implemented
+
+        class NoOverrideSub(np.ndarray):
+            pass
+
+        array = np.array(1).view(np.ndarray)
+        override_sub = np.array(1).view(OverrideSub)
+        no_override_sub = np.array(1).view(NoOverrideSub)
+
+        args = _get_implementing_args([array, override_sub])
+        assert_equal(list(args), [override_sub, array])
+
+        args = _get_implementing_args([array, no_override_sub])
+        assert_equal(list(args), [no_override_sub, array])
+
+        args = _get_implementing_args(
+            [override_sub, no_override_sub])
+        assert_equal(list(args), [override_sub, no_override_sub])
+
+    def test_ndarray_and_duck_array(self):
+
+        class Other:
+            __array_function__ = _return_not_implemented
+
+        array = np.array(1)
+        other = Other()
+
+        args = _get_implementing_args([other, array])
+        assert_equal(list(args), [other, array])
+
+        args = _get_implementing_args([array, other])
+        assert_equal(list(args), [array, other])
+
+    def test_ndarray_subclass_and_duck_array(self):
+
+        class OverrideSub(np.ndarray):
+            __array_function__ = _return_not_implemented
+
+        class Other:
+            __array_function__ = _return_not_implemented
+
+        array = np.array(1)
+        subarray = np.array(1).view(OverrideSub)
+        other = Other()
+
+        assert_equal(_get_implementing_args([array, subarray, other]),
+                     [subarray, array, other])
+        assert_equal(_get_implementing_args([array, other, subarray]),
+                     [subarray, array, other])
+
+    def test_many_duck_arrays(self):
+
+        class A:
+            __array_function__ = _return_not_implemented
+
+        class B(A):
+            __array_function__ = _return_not_implemented
+
+        class C(A):
+            __array_function__ = _return_not_implemented
+
+        class D:
+            __array_function__ = _return_not_implemented
+
+        a = A()
+        b = B()
+        c = C()
+        d = D()
+
+        assert_equal(_get_implementing_args([1]), [])
+        assert_equal(_get_implementing_args([a]), [a])
+        assert_equal(_get_implementing_args([a, 1]), [a])
+        assert_equal(_get_implementing_args([a, a, a]), [a])
+        assert_equal(_get_implementing_args([a, d, a]), [a, d])
+        assert_equal(_get_implementing_args([a, b]), [b, a])
+        assert_equal(_get_implementing_args([b, a]), [b, a])
+        assert_equal(_get_implementing_args([a, b, c]), [b, c, a])
+        assert_equal(_get_implementing_args([a, c, b]), [c, b, a])
+
+    def test_too_many_duck_arrays(self):
+        namespace = {'__array_function__': _return_not_implemented}
+        types = [type('A' + str(i), (object,), namespace) for i in range(65)]
+        relevant_args = [t() for t in types]
+
+        actual = _get_implementing_args(relevant_args[:64])
+        assert_equal(actual, relevant_args[:64])
+
+        with assert_raises_regex(TypeError, 'distinct argument types'):
+            _get_implementing_args(relevant_args)
+
+
+class TestNDArrayArrayFunction:
+
+    def test_method(self):
+
+        class Other:
+            __array_function__ = _return_not_implemented
+
+        class NoOverrideSub(np.ndarray):
+            pass
+
+        class OverrideSub(np.ndarray):
+            __array_function__ = _return_not_implemented
+
+        array = np.array([1])
+        other = Other()
+        no_override_sub = array.view(NoOverrideSub)
+        override_sub = array.view(OverrideSub)
+
+        result = array.__array_function__(func=dispatched_two_arg,
+                                          types=(np.ndarray,),
+                                          args=(array, 1.), kwargs={})
+        assert_equal(result, 'original')
+
+        result = array.__array_function__(func=dispatched_two_arg,
+                                          types=(np.ndarray, Other),
+                                          args=(array, other), kwargs={})
+        assert_(result is NotImplemented)
+
+        result = array.__array_function__(func=dispatched_two_arg,
+                                          types=(np.ndarray, NoOverrideSub),
+                                          args=(array, no_override_sub),
+                                          kwargs={})
+        assert_equal(result, 'original')
+
+        result = array.__array_function__(func=dispatched_two_arg,
+                                          types=(np.ndarray, OverrideSub),
+                                          args=(array, override_sub),
+                                          kwargs={})
+        assert_equal(result, 'original')
+
+        with assert_raises_regex(TypeError, 'no implementation found'):
+            np.concatenate((array, other))
+
+        expected = np.concatenate((array, array))
+        result = np.concatenate((array, no_override_sub))
+        assert_equal(result, expected.view(NoOverrideSub))
+        result = np.concatenate((array, override_sub))
+        assert_equal(result, expected.view(OverrideSub))
+
+    def test_no_wrapper(self):
+        # Regular numpy functions have wrappers, but do not presume
+        # all functions do (array creation ones do not): check that
+        # we just call the function in that case.
+        array = np.array(1)
+        func = lambda x: x * 2
+        result = array.__array_function__(func=func, types=(np.ndarray,),
+                                          args=(array,), kwargs={})
+        assert_equal(result, array * 2)
+
+    def test_wrong_arguments(self):
+        # Check our implementation guards against wrong arguments.
+        a = np.array([1, 2])
+        with pytest.raises(TypeError, match="args must be a tuple"):
+            a.__array_function__(np.reshape, (np.ndarray,), a, (2, 1))
+        with pytest.raises(TypeError, match="kwargs must be a dict"):
+            a.__array_function__(np.reshape, (np.ndarray,), (a,), (2, 1))
+
+
+class TestArrayFunctionDispatch:
+
+    def test_pickle(self):
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            roundtripped = pickle.loads(
+                    pickle.dumps(dispatched_one_arg, protocol=proto))
+            assert_(roundtripped is dispatched_one_arg)
+
+    def test_name_and_docstring(self):
+        assert_equal(dispatched_one_arg.__name__, 'dispatched_one_arg')
+        if sys.flags.optimize < 2:
+            assert_equal(dispatched_one_arg.__doc__, 'Docstring.')
+
+    def test_interface(self):
+
+        class MyArray:
+            def __array_function__(self, func, types, args, kwargs):
+                return (self, func, types, args, kwargs)
+
+        original = MyArray()
+        (obj, func, types, args, kwargs) = dispatched_one_arg(original)
+        assert_(obj is original)
+        assert_(func is dispatched_one_arg)
+        assert_equal(set(types), {MyArray})
+        # assert_equal uses the overloaded np.iscomplexobj() internally
+        assert_(args == (original,))
+        assert_equal(kwargs, {})
+
+    def test_not_implemented(self):
+
+        class MyArray:
+            def __array_function__(self, func, types, args, kwargs):
+                return NotImplemented
+
+        array = MyArray()
+        with assert_raises_regex(TypeError, 'no implementation found'):
+            dispatched_one_arg(array)
+
+    def test_where_dispatch(self):
+
+        class DuckArray:
+            def __array_function__(self, ufunc, method, *inputs, **kwargs):
+                return "overridden"
+
+        array = np.array(1)
+        duck_array = DuckArray()
+
+        result = np.std(array, where=duck_array)
+
+        assert_equal(result, "overridden")
+
+
+class TestVerifyMatchingSignatures:
+
+    def test_verify_matching_signatures(self):
+
+        verify_matching_signatures(lambda x: 0, lambda x: 0)
+        verify_matching_signatures(lambda x=None: 0, lambda x=None: 0)
+        verify_matching_signatures(lambda x=1: 0, lambda x=None: 0)
+
+        with assert_raises(RuntimeError):
+            verify_matching_signatures(lambda a: 0, lambda b: 0)
+        with assert_raises(RuntimeError):
+            verify_matching_signatures(lambda x: 0, lambda x=None: 0)
+        with assert_raises(RuntimeError):
+            verify_matching_signatures(lambda x=None: 0, lambda y=None: 0)
+        with assert_raises(RuntimeError):
+            verify_matching_signatures(lambda x=1: 0, lambda y=1: 0)
+
+    def test_array_function_dispatch(self):
+
+        with assert_raises(RuntimeError):
+            @array_function_dispatch(lambda x: (x,))
+            def f(y):
+                pass
+
+        # should not raise
+        @array_function_dispatch(lambda x: (x,), verify=False)
+        def f(y):
+            pass
+
+
+def _new_duck_type_and_implements():
+    """Create a duck array type and implements functions."""
+    HANDLED_FUNCTIONS = {}
+
+    class MyArray:
+        def __array_function__(self, func, types, args, kwargs):
+            if func not in HANDLED_FUNCTIONS:
+                return NotImplemented
+            if not all(issubclass(t, MyArray) for t in types):
+                return NotImplemented
+            return HANDLED_FUNCTIONS[func](*args, **kwargs)
+
+    def implements(numpy_function):
+        """Register an __array_function__ implementations."""
+        def decorator(func):
+            HANDLED_FUNCTIONS[numpy_function] = func
+            return func
+        return decorator
+
+    return (MyArray, implements)
+
+
+class TestArrayFunctionImplementation:
+
+    def test_one_arg(self):
+        MyArray, implements = _new_duck_type_and_implements()
+
+        @implements(dispatched_one_arg)
+        def _(array):
+            return 'myarray'
+
+        assert_equal(dispatched_one_arg(1), 'original')
+        assert_equal(dispatched_one_arg(MyArray()), 'myarray')
+
+    def test_optional_args(self):
+        MyArray, implements = _new_duck_type_and_implements()
+
+        @array_function_dispatch(lambda array, option=None: (array,))
+        def func_with_option(array, option='default'):
+            return option
+
+        @implements(func_with_option)
+        def my_array_func_with_option(array, new_option='myarray'):
+            return new_option
+
+        # we don't need to implement every option on __array_function__
+        # implementations
+        assert_equal(func_with_option(1), 'default')
+        assert_equal(func_with_option(1, option='extra'), 'extra')
+        assert_equal(func_with_option(MyArray()), 'myarray')
+        with assert_raises(TypeError):
+            func_with_option(MyArray(), option='extra')
+
+        # but new options on implementations can't be used
+        result = my_array_func_with_option(MyArray(), new_option='yes')
+        assert_equal(result, 'yes')
+        with assert_raises(TypeError):
+            func_with_option(MyArray(), new_option='no')
+
+    def test_not_implemented(self):
+        MyArray, implements = _new_duck_type_and_implements()
+
+        @array_function_dispatch(lambda array: (array,), module='my')
+        def func(array):
+            return array
+
+        array = np.array(1)
+        assert_(func(array) is array)
+        assert_equal(func.__module__, 'my')
+
+        with assert_raises_regex(
+                TypeError, "no implementation found for 'my.func'"):
+            func(MyArray())
+
+    @pytest.mark.parametrize("name", ["concatenate", "mean", "asarray"])
+    def test_signature_error_message_simple(self, name):
+        func = getattr(np, name)
+        try:
+            # all of these functions need an argument:
+            func()
+        except TypeError as e:
+            exc = e
+
+        assert exc.args[0].startswith(f"{name}()")
+
+    def test_signature_error_message(self):
+        # The lambda function will be named "<lambda>", but the TypeError
+        # should show the name as "func"
+        def _dispatcher():
+            return ()
+
+        @array_function_dispatch(_dispatcher)
+        def func():
+            pass
+
+        try:
+            func._implementation(bad_arg=3)
+        except TypeError as e:
+            expected_exception = e
+
+        try:
+            func(bad_arg=3)
+            raise AssertionError("must fail")
+        except TypeError as exc:
+            if exc.args[0].startswith("_dispatcher"):
+                # We replace the qualname currently, but it used `__name__`
+                # (relevant functions have the same name and qualname anyway)
+                pytest.skip("Python version is not using __qualname__ for "
+                            "TypeError formatting.")
+
+            assert exc.args == expected_exception.args
+
+    @pytest.mark.parametrize("value", [234, "this func is not replaced"])
+    def test_dispatcher_error(self, value):
+        # If the dispatcher raises an error, we must not attempt to mutate it
+        error = TypeError(value)
+
+        def dispatcher():
+            raise error
+
+        @array_function_dispatch(dispatcher)
+        def func():
+            return 3
+
+        try:
+            func()
+            raise AssertionError("must fail")
+        except TypeError as exc:
+            assert exc is error  # unmodified exception
+
+    def test_properties(self):
+        # Check that str and repr are sensible
+        func = dispatched_two_arg
+        assert str(func) == str(func._implementation)
+        repr_no_id = repr(func).split("at ")[0]
+        repr_no_id_impl = repr(func._implementation).split("at ")[0]
+        assert repr_no_id == repr_no_id_impl
+
+    @pytest.mark.parametrize("func", [
+            lambda x, y: 0,  # no like argument
+            lambda like=None: 0,  # not keyword only
+            lambda *, like=None, a=3: 0,  # not last (not that it matters)
+        ])
+    def test_bad_like_sig(self, func):
+        # We sanity check the signature, and these should fail.
+        with pytest.raises(RuntimeError):
+            array_function_dispatch()(func)
+
+    def test_bad_like_passing(self):
+        # Cover internal sanity check for passing like as first positional arg
+        def func(*, like=None):
+            pass
+
+        func_with_like = array_function_dispatch()(func)
+        with pytest.raises(TypeError):
+            func_with_like()
+        with pytest.raises(TypeError):
+            func_with_like(like=234)
+
+    def test_too_many_args(self):
+        # Mainly a unit-test to increase coverage
+        objs = []
+        for i in range(80):
+            class MyArr:
+                def __array_function__(self, *args, **kwargs):
+                    return NotImplemented
+
+            objs.append(MyArr())
+
+        def _dispatch(*args):
+            return args
+
+        @array_function_dispatch(_dispatch)
+        def func(*args):
+            pass
+
+        with pytest.raises(TypeError, match="maximum number"):
+            func(*objs)
+
+
+class TestNDArrayMethods:
+
+    def test_repr(self):
+        # gh-12162: should still be defined even if __array_function__ doesn't
+        # implement np.array_repr()
+
+        class MyArray(np.ndarray):
+            def __array_function__(*args, **kwargs):
+                return NotImplemented
+
+        array = np.array(1).view(MyArray)
+        assert_equal(repr(array), 'MyArray(1)')
+        assert_equal(str(array), '1')
+
+
+class TestNumPyFunctions:
+
+    def test_set_module(self):
+        assert_equal(np.sum.__module__, 'numpy')
+        assert_equal(np.char.equal.__module__, 'numpy.char')
+        assert_equal(np.fft.fft.__module__, 'numpy.fft')
+        assert_equal(np.linalg.solve.__module__, 'numpy.linalg')
+
+    def test_inspect_sum(self):
+        signature = inspect.signature(np.sum)
+        assert_('axis' in signature.parameters)
+
+    def test_override_sum(self):
+        MyArray, implements = _new_duck_type_and_implements()
+
+        @implements(np.sum)
+        def _(array):
+            return 'yes'
+
+        assert_equal(np.sum(MyArray()), 'yes')
+
+    def test_sum_on_mock_array(self):
+
+        # We need a proxy for mocks because __array_function__ is only looked
+        # up in the class dict
+        class ArrayProxy:
+            def __init__(self, value):
+                self.value = value
+
+            def __array_function__(self, *args, **kwargs):
+                return self.value.__array_function__(*args, **kwargs)
+
+            def __array__(self, *args, **kwargs):
+                return self.value.__array__(*args, **kwargs)
+
+        proxy = ArrayProxy(mock.Mock(spec=ArrayProxy))
+        proxy.value.__array_function__.return_value = 1
+        result = np.sum(proxy)
+        assert_equal(result, 1)
+        proxy.value.__array_function__.assert_called_once_with(
+            np.sum, (ArrayProxy,), (proxy,), {})
+        proxy.value.__array__.assert_not_called()
+
+    def test_sum_forwarding_implementation(self):
+
+        class MyArray(np.ndarray):
+
+            def sum(self, axis, out):
+                return 'summed'
+
+            def __array_function__(self, func, types, args, kwargs):
+                return super().__array_function__(func, types, args, kwargs)
+
+        # note: the internal implementation of np.sum() calls the .sum() method
+        array = np.array(1).view(MyArray)
+        assert_equal(np.sum(array), 'summed')
+
+
+class TestArrayLike:
+    def _create_MyArray(self):
+        class MyArray:
+            def __init__(self, function=None):
+                self.function = function
+
+            def __array_function__(self, func, types, args, kwargs):
+                assert func is getattr(np, func.__name__)
+                try:
+                    my_func = getattr(self, func.__name__)
+                except AttributeError:
+                    return NotImplemented
+                return my_func(*args, **kwargs)
+
+        return MyArray
+
+    def _create_MyNoArrayFunctionArray(self):
+        class MyNoArrayFunctionArray:
+            def __init__(self, function=None):
+                self.function = function
+
+        return MyNoArrayFunctionArray
+
+    def _create_MySubclass(self):
+        class MySubclass(np.ndarray):
+            def __array_function__(self, func, types, args, kwargs):
+                result = super().__array_function__(func, types, args, kwargs)
+                return result.view(self.__class__)
+
+        return MySubclass
+
+    def add_method(self, name, arr_class, enable_value_error=False):
+        def _definition(*args, **kwargs):
+            # Check that `like=` isn't propagated downstream
+            assert 'like' not in kwargs
+
+            if enable_value_error and 'value_error' in kwargs:
+                raise ValueError
+
+            return arr_class(getattr(arr_class, name))
+        setattr(arr_class, name, _definition)
+
+    def func_args(*args, **kwargs):
+        return args, kwargs
+
+    def test_array_like_not_implemented(self):
+        MyArray = self._create_MyArray()
+        self.add_method('array', MyArray)
+
+        ref = MyArray.array()
+
+        with assert_raises_regex(TypeError, 'no implementation found'):
+            array_like = np.asarray(1, like=ref)
+
+    _array_tests = [
+        ('array', *func_args((1,))),
+        ('asarray', *func_args((1,))),
+        ('asanyarray', *func_args((1,))),
+        ('ascontiguousarray', *func_args((2, 3))),
+        ('asfortranarray', *func_args((2, 3))),
+        ('require', *func_args((np.arange(6).reshape(2, 3),),
+                               requirements=['A', 'F'])),
+        ('empty', *func_args((1,))),
+        ('full', *func_args((1,), 2)),
+        ('ones', *func_args((1,))),
+        ('zeros', *func_args((1,))),
+        ('arange', *func_args(3)),
+        ('frombuffer', *func_args(b'\x00' * 8, dtype=int)),
+        ('fromiter', *func_args(range(3), dtype=int)),
+        ('fromstring', *func_args('1,2', dtype=int, sep=',')),
+        ('loadtxt', *func_args(lambda: StringIO('0 1\n2 3'))),
+        ('genfromtxt', *func_args(lambda: StringIO('1,2.1'),
+                                  dtype=[('int', 'i8'), ('float', 'f8')],
+                                  delimiter=',')),
+    ]
+
+    def test_nep35_functions_as_array_functions(self,):
+        all_array_functions = get_overridable_numpy_array_functions()
+        like_array_functions_subset = {
+            getattr(np, func_name) for func_name, *_ in self.__class__._array_tests
+        }
+        assert like_array_functions_subset.issubset(all_array_functions)
+
+        nep35_python_functions = {
+            np.eye, np.fromfunction, np.full, np.genfromtxt,
+            np.identity, np.loadtxt, np.ones, np.require, np.tri,
+        }
+        assert nep35_python_functions.issubset(all_array_functions)
+
+        nep35_C_functions = {
+            np.arange, np.array, np.asanyarray, np.asarray,
+            np.ascontiguousarray, np.asfortranarray, np.empty,
+            np.frombuffer, np.fromfile, np.fromiter, np.fromstring,
+            np.zeros,
+        }
+        assert nep35_C_functions.issubset(all_array_functions)
+
+    @pytest.mark.parametrize('function, args, kwargs', _array_tests)
+    @pytest.mark.parametrize('numpy_ref', [True, False])
+    def test_array_like(self, function, args, kwargs, numpy_ref):
+        MyArray = self._create_MyArray()
+        self.add_method('array', MyArray)
+        self.add_method(function, MyArray)
+        np_func = getattr(np, function)
+        my_func = getattr(MyArray, function)
+
+        if numpy_ref is True:
+            ref = np.array(1)
+        else:
+            ref = MyArray.array()
+
+        like_args = tuple(a() if callable(a) else a for a in args)
+        array_like = np_func(*like_args, **kwargs, like=ref)
+
+        if numpy_ref is True:
+            assert type(array_like) is np.ndarray
+
+            np_args = tuple(a() if callable(a) else a for a in args)
+            np_arr = np_func(*np_args, **kwargs)
+
+            # Special-case np.empty to ensure values match
+            if function == "empty":
+                np_arr.fill(1)
+                array_like.fill(1)
+
+            assert_equal(array_like, np_arr)
+        else:
+            assert type(array_like) is MyArray
+            assert array_like.function is my_func
+
+    @pytest.mark.parametrize('function, args, kwargs', _array_tests)
+    @pytest.mark.parametrize('ref', [1, [1], "MyNoArrayFunctionArray"])
+    def test_no_array_function_like(self, function, args, kwargs, ref):
+        MyNoArrayFunctionArray = self._create_MyNoArrayFunctionArray()
+        self.add_method('array', MyNoArrayFunctionArray)
+        self.add_method(function, MyNoArrayFunctionArray)
+        np_func = getattr(np, function)
+
+        # Instantiate ref if it's the MyNoArrayFunctionArray class
+        if ref == "MyNoArrayFunctionArray":
+            ref = MyNoArrayFunctionArray.array()
+
+        like_args = tuple(a() if callable(a) else a for a in args)
+
+        with assert_raises_regex(TypeError,
+                'The `like` argument must be an array-like that implements'):
+            np_func(*like_args, **kwargs, like=ref)
+
+    @pytest.mark.parametrize('function, args, kwargs', _array_tests)
+    def test_subclass(self, function, args, kwargs):
+        MySubclass = self._create_MySubclass()
+        ref = np.array(1).view(MySubclass)
+        np_func = getattr(np, function)
+        like_args = tuple(a() if callable(a) else a for a in args)
+        array_like = np_func(*like_args, **kwargs, like=ref)
+        assert type(array_like) is MySubclass
+        if np_func is np.empty:
+            return
+        np_args = tuple(a() if callable(a) else a for a in args)
+        np_arr = np_func(*np_args, **kwargs)
+        assert_equal(array_like.view(np.ndarray), np_arr)
+
+    @pytest.mark.parametrize('numpy_ref', [True, False])
+    def test_array_like_fromfile(self, numpy_ref):
+        MyArray = self._create_MyArray()
+        self.add_method('array', MyArray)
+        self.add_method("fromfile", MyArray)
+
+        if numpy_ref is True:
+            ref = np.array(1)
+        else:
+            ref = MyArray.array()
+
+        data = np.random.random(5)
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            fname = os.path.join(tmpdir, "testfile")
+            data.tofile(fname)
+
+            array_like = np.fromfile(fname, like=ref)
+            if numpy_ref is True:
+                assert type(array_like) is np.ndarray
+                np_res = np.fromfile(fname, like=ref)
+                assert_equal(np_res, data)
+                assert_equal(array_like, np_res)
+            else:
+                assert type(array_like) is MyArray
+                assert array_like.function is MyArray.fromfile
+
+    def test_exception_handling(self):
+        MyArray = self._create_MyArray()
+        self.add_method('array', MyArray, enable_value_error=True)
+
+        ref = MyArray.array()
+
+        with assert_raises(TypeError):
+            # Raises the error about `value_error` being invalid first
+            np.array(1, value_error=True, like=ref)
+
+    @pytest.mark.parametrize('function, args, kwargs', _array_tests)
+    def test_like_as_none(self, function, args, kwargs):
+        MyArray = self._create_MyArray()
+        self.add_method('array', MyArray)
+        self.add_method(function, MyArray)
+        np_func = getattr(np, function)
+
+        like_args = tuple(a() if callable(a) else a for a in args)
+        # required for loadtxt and genfromtxt to init w/o error.
+        like_args_exp = tuple(a() if callable(a) else a for a in args)
+
+        array_like = np_func(*like_args, **kwargs, like=None)
+        expected = np_func(*like_args_exp, **kwargs)
+        # Special-case np.empty to ensure values match
+        if function == "empty":
+            array_like.fill(1)
+            expected.fill(1)
+        assert_equal(array_like, expected)
+
+
+def test_function_like():
+    # We provide a `__get__` implementation, make sure it works
+    assert type(np.mean) is np._core._multiarray_umath._ArrayFunctionDispatcher
+
+    class MyClass:
+        def __array__(self, dtype=None, copy=None):
+            # valid argument to mean:
+            return np.arange(3)
+
+        func1 = staticmethod(np.mean)
+        func2 = np.mean
+        func3 = classmethod(np.mean)
+
+    m = MyClass()
+    assert m.func1([10]) == 10
+    assert m.func2() == 1  # mean of the arange
+    with pytest.raises(TypeError, match="unsupported operand type"):
+        # Tries to operate on the class
+        m.func3()
+
+    # Manual binding also works (the above may shortcut):
+    bound = np.mean.__get__(m, MyClass)
+    assert bound() == 1
+
+    bound = np.mean.__get__(None, MyClass)  # unbound actually
+    assert bound([10]) == 10
+
+    bound = np.mean.__get__(MyClass)  # classmethod
+    with pytest.raises(TypeError, match="unsupported operand type"):
+        bound()
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_print.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_print.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed88ec9df03b18edfed8fc0ece87c7731138f896
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_print.py
@@ -0,0 +1,202 @@
+import sys
+from io import StringIO
+
+import pytest
+
+import numpy as np
+from numpy._core.tests._locales import CommaDecimalPointLocale
+from numpy.testing import IS_MUSL, assert_, assert_equal
+
+_REF = {np.inf: 'inf', -np.inf: '-inf', np.nan: 'nan'}
+
+
+@pytest.mark.parametrize('tp', [np.float32, np.double, np.longdouble])
+def test_float_types(tp):
+    """ Check formatting.
+
+        This is only for the str function, and only for simple types.
+        The precision of np.float32 and np.longdouble aren't the same as the
+        python float precision.
+
+    """
+    for x in [0, 1, -1, 1e20]:
+        assert_equal(str(tp(x)), str(float(x)),
+                     err_msg=f'Failed str formatting for type {tp}')
+
+    if tp(1e16).itemsize > 4:
+        assert_equal(str(tp(1e16)), str(float('1e16')),
+                     err_msg=f'Failed str formatting for type {tp}')
+    else:
+        ref = '1e+16'
+        assert_equal(str(tp(1e16)), ref,
+                     err_msg=f'Failed str formatting for type {tp}')
+
+
+@pytest.mark.parametrize('tp', [np.float32, np.double, np.longdouble])
+def test_nan_inf_float(tp):
+    """ Check formatting of nan & inf.
+
+        This is only for the str function, and only for simple types.
+        The precision of np.float32 and np.longdouble aren't the same as the
+        python float precision.
+
+    """
+    for x in [np.inf, -np.inf, np.nan]:
+        assert_equal(str(tp(x)), _REF[x],
+                     err_msg=f'Failed str formatting for type {tp}')
+
+
+@pytest.mark.parametrize('tp', [np.complex64, np.cdouble, np.clongdouble])
+def test_complex_types(tp):
+    """Check formatting of complex types.
+
+        This is only for the str function, and only for simple types.
+        The precision of np.float32 and np.longdouble aren't the same as the
+        python float precision.
+
+    """
+    for x in [0, 1, -1, 1e20]:
+        assert_equal(str(tp(x)), str(complex(x)),
+                     err_msg=f'Failed str formatting for type {tp}')
+        assert_equal(str(tp(x * 1j)), str(complex(x * 1j)),
+                     err_msg=f'Failed str formatting for type {tp}')
+        assert_equal(str(tp(x + x * 1j)), str(complex(x + x * 1j)),
+                     err_msg=f'Failed str formatting for type {tp}')
+
+    if tp(1e16).itemsize > 8:
+        assert_equal(str(tp(1e16)), str(complex(1e16)),
+                     err_msg=f'Failed str formatting for type {tp}')
+    else:
+        ref = '(1e+16+0j)'
+        assert_equal(str(tp(1e16)), ref,
+                     err_msg=f'Failed str formatting for type {tp}')
+
+
+@pytest.mark.parametrize('dtype', [np.complex64, np.cdouble, np.clongdouble])
+def test_complex_inf_nan(dtype):
+    """Check inf/nan formatting of complex types."""
+    TESTS = {
+        complex(np.inf, 0): "(inf+0j)",
+        complex(0, np.inf): "infj",
+        complex(-np.inf, 0): "(-inf+0j)",
+        complex(0, -np.inf): "-infj",
+        complex(np.inf, 1): "(inf+1j)",
+        complex(1, np.inf): "(1+infj)",
+        complex(-np.inf, 1): "(-inf+1j)",
+        complex(1, -np.inf): "(1-infj)",
+        complex(np.nan, 0): "(nan+0j)",
+        complex(0, np.nan): "nanj",
+        complex(-np.nan, 0): "(nan+0j)",
+        complex(0, -np.nan): "nanj",
+        complex(np.nan, 1): "(nan+1j)",
+        complex(1, np.nan): "(1+nanj)",
+        complex(-np.nan, 1): "(nan+1j)",
+        complex(1, -np.nan): "(1+nanj)",
+    }
+    for c, s in TESTS.items():
+        assert_equal(str(dtype(c)), s)
+
+
+# print tests
+def _test_redirected_print(x, tp, ref=None):
+    file = StringIO()
+    file_tp = StringIO()
+    stdout = sys.stdout
+    try:
+        sys.stdout = file_tp
+        print(tp(x))
+        sys.stdout = file
+        if ref:
+            print(ref)
+        else:
+            print(x)
+    finally:
+        sys.stdout = stdout
+
+    assert_equal(file.getvalue(), file_tp.getvalue(),
+                 err_msg=f'print failed for type{tp}')
+
+
+@pytest.mark.thread_unsafe(reason="sys.stdout not thread-safe")
+@pytest.mark.parametrize('tp', [np.float32, np.double, np.longdouble])
+def test_float_type_print(tp):
+    """Check formatting when using print """
+    for x in [0, 1, -1, 1e20]:
+        _test_redirected_print(float(x), tp)
+
+    for x in [np.inf, -np.inf, np.nan]:
+        _test_redirected_print(float(x), tp, _REF[x])
+
+    if tp(1e16).itemsize > 4:
+        _test_redirected_print(1e16, tp)
+    else:
+        ref = '1e+16'
+        _test_redirected_print(1e16, tp, ref)
+
+
+@pytest.mark.thread_unsafe(reason="sys.stdout not thread-safe")
+@pytest.mark.parametrize('tp', [np.complex64, np.cdouble, np.clongdouble])
+def test_complex_type_print(tp):
+    """Check formatting when using print """
+    # We do not create complex with inf/nan directly because the feature is
+    # missing in python < 2.6
+    for x in [0, 1, -1, 1e20]:
+        _test_redirected_print(complex(x), tp)
+
+    if tp(1e16).itemsize > 8:
+        _test_redirected_print(complex(1e16), tp)
+    else:
+        ref = '(1e+16+0j)'
+        _test_redirected_print(complex(1e16), tp, ref)
+
+    _test_redirected_print(complex(np.inf, 1), tp, '(inf+1j)')
+    _test_redirected_print(complex(-np.inf, 1), tp, '(-inf+1j)')
+    _test_redirected_print(complex(-np.nan, 1), tp, '(nan+1j)')
+
+
+def test_scalar_format():
+    """Test the str.format method with NumPy scalar types"""
+    tests = [('{0}', True, np.bool),
+            ('{0}', False, np.bool),
+            ('{0:d}', 130, np.uint8),
+            ('{0:d}', 50000, np.uint16),
+            ('{0:d}', 3000000000, np.uint32),
+            ('{0:d}', 15000000000000000000, np.uint64),
+            ('{0:d}', -120, np.int8),
+            ('{0:d}', -30000, np.int16),
+            ('{0:d}', -2000000000, np.int32),
+            ('{0:d}', -7000000000000000000, np.int64),
+            ('{0:g}', 1.5, np.float16),
+            ('{0:g}', 1.5, np.float32),
+            ('{0:g}', 1.5, np.float64),
+            ('{0:g}', 1.5, np.longdouble),
+            ('{0:g}', 1.5 + 0.5j, np.complex64),
+            ('{0:g}', 1.5 + 0.5j, np.complex128),
+            ('{0:g}', 1.5 + 0.5j, np.clongdouble)]
+
+    for (fmat, val, valtype) in tests:
+        try:
+            assert_equal(fmat.format(val), fmat.format(valtype(val)),
+                    f"failed with val {val}, type {valtype}")
+        except ValueError as e:
+            assert_(False,
+               "format raised exception (fmt='%s', val=%s, type=%s, exc='%s')" %
+                            (fmat, repr(val), repr(valtype), str(e)))
+
+
+#
+# Locale tests: scalar types formatting should be independent of the locale
+#
+
+class TestCommaDecimalPointLocale(CommaDecimalPointLocale):
+
+    def test_locale_single(self):
+        assert_equal(str(np.float32(1.2)), str(1.2))
+
+    def test_locale_double(self):
+        assert_equal(str(np.double(1.2)), str(1.2))
+
+    @pytest.mark.skipif(IS_MUSL,
+                        reason="test flaky on musllinux")
+    def test_locale_longdouble(self):
+        assert_equal(str(np.longdouble('1.2')), str(1.2))
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_protocols.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_protocols.py
new file mode 100644
index 0000000000000000000000000000000000000000..5d932628830c78e6e809d759238e44d0d3103e81
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_protocols.py
@@ -0,0 +1,46 @@
+import warnings
+
+import pytest
+
+import numpy as np
+
+
+@pytest.mark.filterwarnings("error")
+def test_getattr_warning():
+    # issue gh-14735: make sure we clear only getattr errors, and let warnings
+    # through
+    class Wrapper:
+        def __init__(self, array):
+            self.array = array
+
+        def __len__(self):
+            return len(self.array)
+
+        def __getitem__(self, item):
+            return type(self)(self.array[item])
+
+        def __getattr__(self, name):
+            if name.startswith("__array_"):
+                warnings.warn("object got converted", UserWarning, stacklevel=1)
+
+            return getattr(self.array, name)
+
+        def __repr__(self):
+            return f"<Wrapper({self.array})>"
+
+    array = Wrapper(np.arange(10))
+    with pytest.raises(UserWarning, match="object got converted"):
+        np.asarray(array)
+
+
+def test_array_called():
+    class Wrapper:
+        val = '0' * 100
+
+        def __array__(self, dtype=None, copy=None):
+            return np.array([self.val], dtype=dtype, copy=copy)
+
+    wrapped = Wrapper()
+    arr = np.array(wrapped, dtype=str)
+    assert arr.dtype == 'U100'
+    assert arr[0] == Wrapper.val
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_records.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_records.py
new file mode 100644
index 0000000000000000000000000000000000000000..8eaedda17bf2173f30a24fcd9e9e9545ce26a245
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_records.py
@@ -0,0 +1,544 @@
+import collections.abc
+import pickle
+import textwrap
+from io import BytesIO
+from os import path
+from pathlib import Path
+
+import pytest
+
+import numpy as np
+from numpy.testing import (
+    assert_,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    temppath,
+)
+
+
+class TestFromrecords:
+    def test_fromrecords(self):
+        r = np.rec.fromrecords([[456, 'dbe', 1.2], [2, 'de', 1.3]],
+                            names='col1,col2,col3')
+        assert_equal(r[0].item(), (456, 'dbe', 1.2))
+        assert_equal(r['col1'].dtype.kind, 'i')
+        assert_equal(r['col2'].dtype.kind, 'U')
+        assert_equal(r['col2'].dtype.itemsize, 12)
+        assert_equal(r['col3'].dtype.kind, 'f')
+
+    def test_fromrecords_0len(self):
+        """ Verify fromrecords works with a 0-length input """
+        dtype = [('a', float), ('b', float)]
+        r = np.rec.fromrecords([], dtype=dtype)
+        assert_equal(r.shape, (0,))
+
+    def test_fromrecords_2d(self):
+        data = [
+            [(1, 2), (3, 4), (5, 6)],
+            [(6, 5), (4, 3), (2, 1)]
+        ]
+        expected_a = [[1, 3, 5], [6, 4, 2]]
+        expected_b = [[2, 4, 6], [5, 3, 1]]
+
+        # try with dtype
+        r1 = np.rec.fromrecords(data, dtype=[('a', int), ('b', int)])
+        assert_equal(r1['a'], expected_a)
+        assert_equal(r1['b'], expected_b)
+
+        # try with names
+        r2 = np.rec.fromrecords(data, names=['a', 'b'])
+        assert_equal(r2['a'], expected_a)
+        assert_equal(r2['b'], expected_b)
+
+        assert_equal(r1, r2)
+
+    def test_method_array(self):
+        r = np.rec.array(
+            b'abcdefg' * 100, formats='i2,S3,i4', shape=3, byteorder='big'
+        )
+        assert_equal(r[1].item(), (25444, b'efg', 1633837924))
+
+    def test_method_array2(self):
+        r = np.rec.array(
+            [
+                (1, 11, 'a'), (2, 22, 'b'), (3, 33, 'c'), (4, 44, 'd'),
+                (5, 55, 'ex'), (6, 66, 'f'), (7, 77, 'g')
+            ],
+            formats='u1,f4,S1'
+        )
+        assert_equal(r[1].item(), (2, 22.0, b'b'))
+
+    def test_recarray_slices(self):
+        r = np.rec.array(
+            [
+                (1, 11, 'a'), (2, 22, 'b'), (3, 33, 'c'), (4, 44, 'd'),
+                (5, 55, 'ex'), (6, 66, 'f'), (7, 77, 'g')
+            ],
+            formats='u1,f4,S1'
+        )
+        assert_equal(r[1::2][1].item(), (4, 44.0, b'd'))
+
+    def test_recarray_fromarrays(self):
+        x1 = np.array([1, 2, 3, 4])
+        x2 = np.array(['a', 'dd', 'xyz', '12'])
+        x3 = np.array([1.1, 2, 3, 4])
+        r = np.rec.fromarrays([x1, x2, x3], names='a,b,c')
+        assert_equal(r[1].item(), (2, 'dd', 2.0))
+        x1[1] = 34
+        assert_equal(r.a, np.array([1, 2, 3, 4]))
+
+    def test_recarray_fromfile(self):
+        data_dir = path.join(path.dirname(__file__), 'data')
+        filename = path.join(data_dir, 'recarray_from_file.fits')
+        fd = open(filename, 'rb')
+        fd.seek(2880 * 2)
+        r1 = np.rec.fromfile(fd, formats='f8,i4,S5', shape=3, byteorder='big')
+        fd.seek(2880 * 2)
+        r2 = np.rec.array(fd, formats='f8,i4,S5', shape=3, byteorder='big')
+        fd.seek(2880 * 2)
+        bytes_array = BytesIO()
+        bytes_array.write(fd.read())
+        bytes_array.seek(0)
+        r3 = np.rec.fromfile(
+            bytes_array, formats='f8,i4,S5', shape=3, byteorder='big'
+        )
+        fd.close()
+        assert_equal(r1, r2)
+        assert_equal(r2, r3)
+
+    def test_recarray_from_obj(self):
+        count = 10
+        a = np.zeros(count, dtype='O')
+        b = np.zeros(count, dtype='f8')
+        c = np.zeros(count, dtype='f8')
+        for i in range(len(a)):
+            a[i] = list(range(1, 10))
+
+        mine = np.rec.fromarrays([a, b, c], names='date,data1,data2')
+        for i in range(len(a)):
+            assert_(mine.date[i] == list(range(1, 10)))
+            assert_(mine.data1[i] == 0.0)
+            assert_(mine.data2[i] == 0.0)
+
+    def test_recarray_repr(self):
+        a = np.array([(1, 0.1), (2, 0.2)],
+                     dtype=[('foo', '<i4'), ('bar', '<f8')])
+        a = np.rec.array(a)
+        assert_equal(
+            repr(a),
+            textwrap.dedent("""\
+            rec.array([(1, 0.1), (2, 0.2)],
+                      dtype=[('foo', '<i4'), ('bar', '<f8')])""")
+        )
+
+        # make sure non-structured dtypes also show up as rec.array
+        a = np.array(np.ones(4, dtype='f8'))
+        assert_(repr(np.rec.array(a)).startswith('rec.array'))
+
+        # check that the 'np.record' part of the dtype isn't shown
+        a = np.rec.array(np.ones(3, dtype='i4,i4'))
+        assert_equal(repr(a).find('numpy.record'), -1)
+        a = np.rec.array(np.ones(3, dtype='i4'))
+        assert_(repr(a).find('dtype=int32') != -1)
+
+    def test_0d_recarray_repr(self):
+        arr_0d = np.rec.array((1, 2.0, '2003'), dtype='<i4,<f8,<M8[Y]')
+        assert_equal(repr(arr_0d), textwrap.dedent("""\
+            rec.array((1, 2., '2003'),
+                      dtype=[('f0', '<i4'), ('f1', '<f8'), ('f2', '<M8[Y]')])"""))
+
+        record = arr_0d[()]
+        assert_equal(repr(record),
+            "np.record((1, 2.0, '2003'), "
+            "dtype=[('f0', '<i4'), ('f1', '<f8'), ('f2', '<M8[Y]')])")
+        # 1.13 converted to python scalars before the repr
+        try:
+            np.set_printoptions(legacy='1.13')
+            assert_equal(repr(record), '(1, 2.0, datetime.date(2003, 1, 1))')
+        finally:
+            np.set_printoptions(legacy=False)
+
+    def test_recarray_from_repr(self):
+        a = np.array([(1, 'ABC'), (2, "DEF")],
+                     dtype=[('foo', int), ('bar', 'S4')])
+        recordarr = np.rec.array(a)
+        recarr = a.view(np.recarray)
+        recordview = a.view(np.dtype((np.record, a.dtype)))
+
+        recordarr_r = eval("np." + repr(recordarr), {'np': np})
+        recarr_r = eval("np." + repr(recarr), {'np': np})
+        # Prints the type `numpy.record` as part of the dtype:
+        recordview_r = eval("np." + repr(recordview), {'np': np, 'numpy': np})
+
+        assert_equal(type(recordarr_r), np.recarray)
+        assert_equal(recordarr_r.dtype.type, np.record)
+        assert_equal(recordarr, recordarr_r)
+
+        assert_equal(type(recarr_r), np.recarray)
+        assert_equal(recarr_r.dtype.type, np.record)
+        assert_equal(recarr, recarr_r)
+
+        assert_equal(type(recordview_r), np.ndarray)
+        assert_equal(recordview.dtype.type, np.record)
+        assert_equal(recordview, recordview_r)
+
+    def test_recarray_views(self):
+        a = np.array([(1, 'ABC'), (2, "DEF")],
+                     dtype=[('foo', int), ('bar', 'S4')])
+        b = np.array([1, 2, 3, 4, 5], dtype=np.int64)
+
+        # check that np.rec.array gives right dtypes
+        assert_equal(np.rec.array(a).dtype.type, np.record)
+        assert_equal(type(np.rec.array(a)), np.recarray)
+        assert_equal(np.rec.array(b).dtype.type, np.int64)
+        assert_equal(type(np.rec.array(b)), np.recarray)
+
+        # check that viewing as recarray does the same
+        assert_equal(a.view(np.recarray).dtype.type, np.record)
+        assert_equal(type(a.view(np.recarray)), np.recarray)
+        assert_equal(b.view(np.recarray).dtype.type, np.int64)
+        assert_equal(type(b.view(np.recarray)), np.recarray)
+
+        # check that view to non-structured dtype preserves type=np.recarray
+        r = np.rec.array(np.ones(4, dtype="f4,i4"))
+        rv = r.view('f8').view('f4,i4')
+        assert_equal(type(rv), np.recarray)
+        assert_equal(rv.dtype.type, np.record)
+
+        # check that getitem also preserves np.recarray and np.record
+        r = np.rec.array(np.ones(4, dtype=[('a', 'i4'), ('b', 'i4'),
+                                           ('c', 'i4,i4')]))
+        assert_equal(r['c'].dtype.type, np.record)
+        assert_equal(type(r['c']), np.recarray)
+
+        # and that it preserves subclasses (gh-6949)
+        class C(np.recarray):
+            pass
+
+        c = r.view(C)
+        assert_equal(type(c['c']), C)
+
+        # check that accessing nested structures keep record type, but
+        # not for subarrays, non-void structures, non-structured voids
+        test_dtype = [('a', 'f4,f4'), ('b', 'V8'), ('c', ('f4', 2)),
+                      ('d', ('i8', 'i4,i4'))]
+        r = np.rec.array([((1, 1), b'11111111', [1, 1], 1),
+                          ((1, 1), b'11111111', [1, 1], 1)], dtype=test_dtype)
+        assert_equal(r.a.dtype.type, np.record)
+        assert_equal(r.b.dtype.type, np.void)
+        assert_equal(r.c.dtype.type, np.float32)
+        assert_equal(r.d.dtype.type, np.int64)
+        # check the same, but for views
+        r = np.rec.array(np.ones(4, dtype='i4,i4'))
+        assert_equal(r.view('f4,f4').dtype.type, np.record)
+        assert_equal(r.view(('i4', 2)).dtype.type, np.int32)
+        assert_equal(r.view('V8').dtype.type, np.void)
+        assert_equal(r.view(('i8', 'i4,i4')).dtype.type, np.int64)
+
+        # check that we can undo the view
+        arrs = [np.ones(4, dtype='f4,i4'), np.ones(4, dtype='f8')]
+        for arr in arrs:
+            rec = np.rec.array(arr)
+            # recommended way to view as an ndarray:
+            arr2 = rec.view(rec.dtype.fields or rec.dtype, np.ndarray)
+            assert_equal(arr2.dtype.type, arr.dtype.type)
+            assert_equal(type(arr2), type(arr))
+
+    def test_recarray_from_names(self):
+        ra = np.rec.array([
+            (1, 'abc', 3.7000002861022949, 0),
+            (2, 'xy', 6.6999998092651367, 1),
+            (0, ' ', 0.40000000596046448, 0)],
+                       names='c1, c2, c3, c4')
+        pa = np.rec.fromrecords([
+            (1, 'abc', 3.7000002861022949, 0),
+            (2, 'xy', 6.6999998092651367, 1),
+            (0, ' ', 0.40000000596046448, 0)],
+                       names='c1, c2, c3, c4')
+        assert_(ra.dtype == pa.dtype)
+        assert_(ra.shape == pa.shape)
+        for k in range(len(ra)):
+            assert_(ra[k].item() == pa[k].item())
+
+    def test_recarray_conflict_fields(self):
+        ra = np.rec.array([(1, 'abc', 2.3), (2, 'xyz', 4.2),
+                        (3, 'wrs', 1.3)],
+                       names='field, shape, mean')
+        ra.mean = [1.1, 2.2, 3.3]
+        assert_array_almost_equal(ra['mean'], [1.1, 2.2, 3.3])
+        assert_(type(ra.mean) is type(ra.var))
+        ra.shape = (1, 3)
+        assert_(ra.shape == (1, 3))
+        ra.shape = ['A', 'B', 'C']
+        assert_array_equal(ra['shape'], [['A', 'B', 'C']])
+        ra.field = 5
+        assert_array_equal(ra['field'], [[5, 5, 5]])
+        assert_(isinstance(ra.field, collections.abc.Callable))
+
+    def test_fromrecords_with_explicit_dtype(self):
+        a = np.rec.fromrecords([(1, 'a'), (2, 'bbb')],
+                                dtype=[('a', int), ('b', object)])
+        assert_equal(a.a, [1, 2])
+        assert_equal(a[0].a, 1)
+        assert_equal(a.b, ['a', 'bbb'])
+        assert_equal(a[-1].b, 'bbb')
+        #
+        ndtype = np.dtype([('a', int), ('b', object)])
+        a = np.rec.fromrecords([(1, 'a'), (2, 'bbb')], dtype=ndtype)
+        assert_equal(a.a, [1, 2])
+        assert_equal(a[0].a, 1)
+        assert_equal(a.b, ['a', 'bbb'])
+        assert_equal(a[-1].b, 'bbb')
+
+    def test_recarray_stringtypes(self):
+        # Issue #3993
+        a = np.array([('abc ', 1), ('abc', 2)],
+                     dtype=[('foo', 'S4'), ('bar', int)])
+        a = a.view(np.recarray)
+        assert_equal(a.foo[0] == a.foo[1], False)
+
+    def test_recarray_returntypes(self):
+        qux_fields = {'C': (np.dtype('S5'), 0), 'D': (np.dtype('S5'), 6)}
+        a = np.rec.array([('abc ', (1, 1), 1, ('abcde', 'fgehi')),
+                          ('abc', (2, 3), 1, ('abcde', 'jklmn'))],
+                         dtype=[('foo', 'S4'),
+                                ('bar', [('A', int), ('B', int)]),
+                                ('baz', int), ('qux', qux_fields)])
+        assert_equal(type(a.foo), np.ndarray)
+        assert_equal(type(a['foo']), np.ndarray)
+        assert_equal(type(a.bar), np.recarray)
+        assert_equal(type(a['bar']), np.recarray)
+        assert_equal(a.bar.dtype.type, np.record)
+        assert_equal(type(a['qux']), np.recarray)
+        assert_equal(a.qux.dtype.type, np.record)
+        assert_equal(dict(a.qux.dtype.fields), qux_fields)
+        assert_equal(type(a.baz), np.ndarray)
+        assert_equal(type(a['baz']), np.ndarray)
+        assert_equal(type(a[0].bar), np.record)
+        assert_equal(type(a[0]['bar']), np.record)
+        assert_equal(a[0].bar.A, 1)
+        assert_equal(a[0].bar['A'], 1)
+        assert_equal(a[0]['bar'].A, 1)
+        assert_equal(a[0]['bar']['A'], 1)
+        assert_equal(a[0].qux.D, b'fgehi')
+        assert_equal(a[0].qux['D'], b'fgehi')
+        assert_equal(a[0]['qux'].D, b'fgehi')
+        assert_equal(a[0]['qux']['D'], b'fgehi')
+
+    def test_zero_width_strings(self):
+        # Test for #6430, based on the test case from #1901
+
+        cols = [['test'] * 3, [''] * 3]
+        rec = np.rec.fromarrays(cols)
+        assert_equal(rec['f0'], ['test', 'test', 'test'])
+        assert_equal(rec['f1'], ['', '', ''])
+
+        dt = np.dtype([('f0', '|S4'), ('f1', '|S')])
+        rec = np.rec.fromarrays(cols, dtype=dt)
+        assert_equal(rec.itemsize, 4)
+        assert_equal(rec['f0'], [b'test', b'test', b'test'])
+        assert_equal(rec['f1'], [b'', b'', b''])
+
+
+class TestPathUsage:
+    # Test that pathlib.Path can be used
+    def test_tofile_fromfile(self):
+        with temppath(suffix='.bin') as path:
+            path = Path(path)
+            np.random.seed(123)
+            a = np.random.rand(10).astype('f8,i4,S5')
+            a[5] = (0.5, 10, 'abcde')
+            with path.open("wb") as fd:
+                a.tofile(fd)
+            x = np._core.records.fromfile(
+                path, formats='f8,i4,S5', shape=10
+            )
+            assert_array_equal(x, a)
+
+
+class TestRecord:
+    def _create_data(self):
+        return np.rec.fromrecords([(1, 2, 3), (4, 5, 6)],
+                            dtype=[("col1", "<i4"),
+                                   ("col2", "<i4"),
+                                   ("col3", "<i4")])
+
+    def test_assignment1(self):
+        a = self._create_data()
+        assert_equal(a.col1[0], 1)
+        a[0].col1 = 0
+        assert_equal(a.col1[0], 0)
+
+    def test_assignment2(self):
+        a = self._create_data()
+        assert_equal(a.col1[0], 1)
+        a.col1[0] = 0
+        assert_equal(a.col1[0], 0)
+
+    def test_invalid_assignment(self):
+        a = self._create_data()
+
+        def assign_invalid_column(x):
+            x[0].col5 = 1
+
+        assert_raises(AttributeError, assign_invalid_column, a)
+
+    def test_nonwriteable_setfield(self):
+        # gh-8171
+        r = np.rec.array([(0,), (1,)], dtype=[('f', 'i4')])
+        r.flags.writeable = False
+        with assert_raises(ValueError):
+            r.f = [2, 3]
+        with assert_raises(ValueError):
+            r.setfield([2, 3], *r.dtype.fields['f'])
+
+    def test_out_of_order_fields(self):
+        # names in the same order, padding added to descr
+        x = self._create_data()[['col1', 'col2']]
+        assert_equal(x.dtype.names, ('col1', 'col2'))
+        assert_equal(x.dtype.descr,
+                     [('col1', '<i4'), ('col2', '<i4'), ('', '|V4')])
+
+        # names change order to match indexing, as of 1.14 - descr can't
+        # represent that
+        y = self._create_data()[['col2', 'col1']]
+        assert_equal(y.dtype.names, ('col2', 'col1'))
+        assert_raises(ValueError, lambda: y.dtype.descr)
+
+    def test_pickle_1(self):
+        # Issue #1529
+        a = np.array([(1, [])], dtype=[('a', np.int32), ('b', np.int32, 0)])
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            assert_equal(a, pickle.loads(pickle.dumps(a, protocol=proto)))
+            assert_equal(a[0], pickle.loads(pickle.dumps(a[0],
+                                                         protocol=proto)))
+
+    def test_pickle_2(self):
+        a = self._create_data()
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            assert_equal(a, pickle.loads(pickle.dumps(a, protocol=proto)))
+            assert_equal(a[0], pickle.loads(pickle.dumps(a[0],
+                                                         protocol=proto)))
+
+    def test_pickle_3(self):
+        # Issue #7140
+        a = self._create_data()
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            pa = pickle.loads(pickle.dumps(a[0], protocol=proto))
+            assert_(pa.flags.c_contiguous)
+            assert_(pa.flags.f_contiguous)
+            assert_(pa.flags.writeable)
+            assert_(pa.flags.aligned)
+
+    def test_pickle_void(self):
+        # issue gh-13593
+        dt = np.dtype([('obj', 'O'), ('int', 'i')])
+        a = np.empty(1, dtype=dt)
+        data = (bytearray(b'eman'),)
+        a['obj'] = data
+        a['int'] = 42
+        ctor, args = a[0].__reduce__()
+        # check the constructor is what we expect before interpreting the arguments
+        assert ctor is np._core.multiarray.scalar
+        dtype, obj = args
+        # make sure we did not pickle the address
+        assert not isinstance(obj, bytes)
+
+        assert_raises(RuntimeError, ctor, dtype, 13)
+
+        # Test roundtrip:
+        dump = pickle.dumps(a[0])
+        unpickled = pickle.loads(dump)
+        assert a[0] == unpickled
+
+        # Also check the similar (impossible) "object scalar" path:
+        with assert_raises(TypeError):
+            ctor(np.dtype("O"), data)
+
+    def test_objview_record(self):
+        # https://github.com/numpy/numpy/issues/2599
+        dt = np.dtype([('foo', 'i8'), ('bar', 'O')])
+        r = np.zeros((1, 3), dtype=dt).view(np.recarray)
+        r.foo = np.array([1, 2, 3])  # TypeError?
+
+        # https://github.com/numpy/numpy/issues/3256
+        ra = np.recarray(
+            (2,), dtype=[('x', object), ('y', float), ('z', int)]
+        )
+        ra[['x', 'y']]  # TypeError?
+
+    def test_record_scalar_setitem(self):
+        # https://github.com/numpy/numpy/issues/3561
+        rec = np.recarray(1, dtype=[('x', float, 5)])
+        rec[0].x = 1
+        assert_equal(rec[0].x, np.ones(5))
+
+    def test_missing_field(self):
+        # https://github.com/numpy/numpy/issues/4806
+        arr = np.zeros((3,), dtype=[('x', int), ('y', int)])
+        assert_raises(KeyError, lambda: arr[['nofield']])
+
+    def test_fromarrays_nested_structured_arrays(self):
+        arrays = [
+            np.arange(10),
+            np.ones(10, dtype=[('a', '<u2'), ('b', '<f4')]),
+        ]
+        arr = np.rec.fromarrays(arrays)  # ValueError?
+
+    @pytest.mark.parametrize('nfields', [0, 1, 2])
+    def test_assign_dtype_attribute(self, nfields):
+        dt = np.dtype([('a', np.uint8), ('b', np.uint8), ('c', np.uint8)][:nfields])
+        data = np.zeros(3, dt).view(np.recarray)
+
+        # the original and resulting dtypes differ on whether they are records
+        assert data.dtype.type == np.record
+        assert dt.type != np.record
+
+        # ensure that the dtype remains a record even when assigned
+        data.dtype = dt
+        assert data.dtype.type == np.record
+
+    @pytest.mark.parametrize('nfields', [0, 1, 2])
+    def test_nested_fields_are_records(self, nfields):
+        """ Test that nested structured types are treated as records too """
+        dt = np.dtype([('a', np.uint8), ('b', np.uint8), ('c', np.uint8)][:nfields])
+        dt_outer = np.dtype([('inner', dt)])
+
+        data = np.zeros(3, dt_outer).view(np.recarray)
+        assert isinstance(data, np.recarray)
+        assert isinstance(data['inner'], np.recarray)
+
+        data0 = data[0]
+        assert isinstance(data0, np.record)
+        assert isinstance(data0['inner'], np.record)
+
+    def test_nested_dtype_padding(self):
+        """ test that trailing padding is preserved """
+        # construct a dtype with padding at the end
+        dt = np.dtype([('a', np.uint8), ('b', np.uint8), ('c', np.uint8)])
+        dt_padded_end = dt[['a', 'b']]
+        assert dt_padded_end.itemsize == dt.itemsize
+
+        dt_outer = np.dtype([('inner', dt_padded_end)])
+
+        data = np.zeros(3, dt_outer).view(np.recarray)
+        assert_equal(data['inner'].dtype, dt_padded_end)
+
+        data0 = data[0]
+        assert_equal(data0['inner'].dtype, dt_padded_end)
+
+
+def test_find_duplicate():
+    l1 = [1, 2, 3, 4, 5, 6]
+    assert_(np.rec.find_duplicate(l1) == [])
+
+    l2 = [1, 2, 1, 4, 5, 6]
+    assert_(np.rec.find_duplicate(l2) == [1])
+
+    l3 = [1, 2, 1, 4, 1, 6, 2, 3]
+    assert_(np.rec.find_duplicate(l3) == [1, 2])
+
+    l3 = [2, 2, 1, 4, 1, 6, 2, 3]
+    assert_(np.rec.find_duplicate(l3) == [2, 1])
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..5134ea55491e45d6cc1ea2b9d4c7055c8a829bba
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_regression.py
@@ -0,0 +1,2677 @@
+import copy
+import gc
+import pickle
+import sys
+import tempfile
+import warnings
+from io import BytesIO
+from itertools import chain
+from os import path
+
+import pytest
+
+import numpy as np
+from numpy._utils import asbytes, asunicode
+from numpy.exceptions import AxisError, ComplexWarning
+from numpy.lib.stride_tricks import as_strided
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_64BIT,
+    IS_PYPY,
+    IS_PYSTON,
+    IS_WASM,
+    _assert_valid_refcount,
+    assert_,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+from numpy.testing._private.utils import _no_tracing, requires_memory
+
+
+class TestRegression:
+    def test_invalid_round(self):
+        # Ticket #3
+        v = 4.7599999999999998
+        assert_array_equal(np.array([v]), np.array(v))
+
+    def test_mem_empty(self):
+        # Ticket #7
+        np.empty((1,), dtype=[('x', np.int64)])
+
+    def test_pickle_transposed(self):
+        # Ticket #16
+        a = np.transpose(np.array([[2, 9], [7, 0], [3, 8]]))
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            with BytesIO() as f:
+                pickle.dump(a, f, protocol=proto)
+                f.seek(0)
+                b = pickle.load(f)
+            assert_array_equal(a, b)
+
+    def test_dtype_names(self):
+        # Ticket #35
+        # Should succeed
+        np.dtype([(('name', 'label'), np.int32, 3)])
+
+    def test_reduce(self):
+        # Ticket #40
+        assert_almost_equal(np.add.reduce([1., .5], dtype=None), 1.5)
+
+    def test_zeros_order(self):
+        # Ticket #43
+        np.zeros([3], int, 'C')
+        np.zeros([3], order='C')
+        np.zeros([3], int, order='C')
+
+    def test_asarray_with_order(self):
+        # Check that nothing is done when order='F' and array C/F-contiguous
+        a = np.ones(2)
+        assert_(a is np.asarray(a, order='F'))
+
+    def test_ravel_with_order(self):
+        # Check that ravel works when order='F' and array C/F-contiguous
+        a = np.ones(2)
+        assert_(not a.ravel('F').flags.owndata)
+
+    def test_sort_bigendian(self):
+        # Ticket #47
+        a = np.linspace(0, 10, 11)
+        c = a.astype(np.dtype('<f8'))
+        c.sort()
+        assert_array_almost_equal(c, a)
+
+    def test_negative_nd_indexing(self):
+        # Ticket #49
+        c = np.arange(125).reshape((5, 5, 5))
+        origidx = np.array([-1, 0, 1])
+        idx = np.array(origidx)
+        c[idx]
+        assert_array_equal(idx, origidx)
+
+    def test_char_dump(self):
+        # Ticket #50
+        ca = np.char.array(np.arange(1000, 1010), itemsize=4)
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            with BytesIO() as f:
+                pickle.dump(ca, f, protocol=proto)
+                f.seek(0)
+                ca = np.load(f, allow_pickle=True)
+
+    def test_noncontiguous_fill(self):
+        # Ticket #58.
+        a = np.zeros((5, 3))
+        b = a[:, :2,]
+
+        def rs():
+            b.shape = (10,)
+
+        assert_raises(AttributeError, rs)
+
+    def test_bool(self):
+        # Ticket #60
+        np.bool(1)  # Should succeed
+
+    def test_indexing1(self):
+        # Ticket #64
+        descr = [('x', [('y', [('z', 'c16', (2,)),]),]),]
+        buffer = ((([6j, 4j],),),)
+        h = np.array(buffer, dtype=descr)
+        h['x']['y']['z']
+
+    def test_indexing2(self):
+        # Ticket #65
+        descr = [('x', 'i4', (2,))]
+        buffer = ([3, 2],)
+        h = np.array(buffer, dtype=descr)
+        h['x']
+
+    def test_round(self):
+        # Ticket #67
+        x = np.array([1 + 2j])
+        assert_almost_equal(x**(-1), [1 / (1 + 2j)])
+
+    def test_scalar_compare(self):
+        # Trac Ticket #72
+        # https://github.com/numpy/numpy/issues/565
+        a = np.array(['test', 'auto'])
+        assert_array_equal(a == 'auto', np.array([False, True]))
+        assert_(a[1] == 'auto')
+        assert_(a[0] != 'auto')
+        b = np.linspace(0, 10, 11)
+        assert_array_equal(b != 'auto', np.ones(11, dtype=bool))
+        assert_(b[0] != 'auto')
+
+    def test_unicode_swapping(self):
+        # Ticket #79
+        ulen = 1
+        ucs_value = '\U0010FFFF'
+        ua = np.array([[[ucs_value * ulen] * 2] * 3] * 4, dtype=f'U{ulen}')
+        ua.view(ua.dtype.newbyteorder())  # Should succeed.
+
+    def test_object_array_fill(self):
+        # Ticket #86
+        x = np.zeros(1, 'O')
+        x.fill([])
+
+    def test_mem_dtype_align(self):
+        # Ticket #93
+        with pytest.raises(TypeError):
+            np.dtype({'names': ['a'], 'formats': ['foo']}, align=True)
+
+    def test_endian_bool_indexing(self):
+        # Ticket #105
+        a = np.arange(10., dtype='>f8')
+        b = np.arange(10., dtype='<f8')
+        xa = np.where((a > 2) & (a < 6))
+        xb = np.where((b > 2) & (b < 6))
+        ya = ((a > 2) & (a < 6))
+        yb = ((b > 2) & (b < 6))
+        assert_array_almost_equal(xa, ya.nonzero())
+        assert_array_almost_equal(xb, yb.nonzero())
+        assert_(np.all(a[ya] > 0.5))
+        assert_(np.all(b[yb] > 0.5))
+
+    def test_endian_where(self):
+        # GitHub issue #369
+        net = np.zeros(3, dtype='>f4')
+        net[1] = 0.00458849
+        net[2] = 0.605202
+        max_net = net.max()
+        test = np.where(net <= 0., max_net, net)
+        correct = np.array([0.60520202, 0.00458849, 0.60520202])
+        assert_array_almost_equal(test, correct)
+
+    def test_endian_recarray(self):
+        # Ticket #2185
+        dt = np.dtype([
+               ('head', '>u4'),
+               ('data', '>u4', 2),
+            ])
+        buf = np.recarray(1, dtype=dt)
+        buf[0]['head'] = 1
+        buf[0]['data'][:] = [1, 1]
+
+        h = buf[0]['head']
+        d = buf[0]['data'][0]
+        buf[0]['head'] = h
+        buf[0]['data'][0] = d
+        assert_(buf[0]['head'] == 1)
+
+    def test_mem_dot(self):
+        # Ticket #106
+        x = np.random.randn(0, 1)
+        y = np.random.randn(10, 1)
+        # Dummy array to detect bad memory access:
+        _z = np.ones(10)
+        _dummy = np.empty((0, 10))
+        z = as_strided(_z, _dummy.shape, _dummy.strides)
+        np.dot(x, np.transpose(y), out=z)
+        assert_equal(_z, np.ones(10))
+        # Do the same for the built-in dot:
+        np._core.multiarray.dot(x, np.transpose(y), out=z)
+        assert_equal(_z, np.ones(10))
+
+    def test_arange_endian(self):
+        # Ticket #111
+        ref = np.arange(10)
+        x = np.arange(10, dtype='<f8')
+        assert_array_equal(ref, x)
+        x = np.arange(10, dtype='>f8')
+        assert_array_equal(ref, x)
+
+    def test_arange_inf_step(self):
+        ref = np.arange(0, 1, 10)
+        x = np.arange(0, 1, np.inf)
+        assert_array_equal(ref, x)
+
+        ref = np.arange(0, 1, -10)
+        x = np.arange(0, 1, -np.inf)
+        assert_array_equal(ref, x)
+
+        ref = np.arange(0, -1, -10)
+        x = np.arange(0, -1, -np.inf)
+        assert_array_equal(ref, x)
+
+        ref = np.arange(0, -1, 10)
+        x = np.arange(0, -1, np.inf)
+        assert_array_equal(ref, x)
+
+    def test_arange_underflow_stop_and_step(self):
+        finfo = np.finfo(np.float64)
+
+        ref = np.arange(0, finfo.eps, 2 * finfo.eps)
+        x = np.arange(0, finfo.eps, finfo.max)
+        assert_array_equal(ref, x)
+
+        ref = np.arange(0, finfo.eps, -2 * finfo.eps)
+        x = np.arange(0, finfo.eps, -finfo.max)
+        assert_array_equal(ref, x)
+
+        ref = np.arange(0, -finfo.eps, -2 * finfo.eps)
+        x = np.arange(0, -finfo.eps, -finfo.max)
+        assert_array_equal(ref, x)
+
+        ref = np.arange(0, -finfo.eps, 2 * finfo.eps)
+        x = np.arange(0, -finfo.eps, finfo.max)
+        assert_array_equal(ref, x)
+
+    def test_argmax(self):
+        # Ticket #119
+        a = np.random.normal(0, 1, (4, 5, 6, 7, 8))
+        for i in range(a.ndim):
+            a.argmax(i)  # Should succeed
+
+    def test_mem_divmod(self):
+        # Ticket #126
+        for i in range(10):
+            divmod(np.array([i])[0], 10)
+
+    def test_hstack_invalid_dims(self):
+        # Ticket #128
+        x = np.arange(9).reshape((3, 3))
+        y = np.array([0, 0, 0])
+        assert_raises(ValueError, np.hstack, (x, y))
+
+    def test_squeeze_type(self):
+        # Ticket #133
+        a = np.array([3])
+        b = np.array(3)
+        assert_(type(a.squeeze()) is np.ndarray)
+        assert_(type(b.squeeze()) is np.ndarray)
+
+    def test_add_identity(self):
+        # Ticket #143
+        assert_equal(0, np.add.identity)
+
+    def test_numpy_float_python_long_addition(self):
+        # Check that numpy float and python longs can be added correctly.
+        a = np.float64(23.) + 2**135
+        assert_equal(a, 23. + 2**135)
+
+    def test_binary_repr_0(self):
+        # Ticket #151
+        assert_equal('0', np.binary_repr(0))
+
+    def test_rec_iterate(self):
+        # Ticket #160
+        descr = np.dtype([('i', int), ('f', float), ('s', '|S3')])
+        x = np.rec.array([(1, 1.1, '1.0'),
+                         (2, 2.2, '2.0')], dtype=descr)
+        x[0].tolist()
+        list(x[0])
+
+    def test_unicode_string_comparison(self):
+        # Ticket #190
+        a = np.array('hello', np.str_)
+        b = np.array('world')
+        a == b
+
+    def test_tobytes_FORTRANORDER_discontiguous(self):
+        # Fix in r2836
+        # Create non-contiguous Fortran ordered array
+        x = np.array(np.random.rand(3, 3), order='F')[:, :2]
+        assert_array_almost_equal(x.ravel(), np.frombuffer(x.tobytes()))
+
+    def test_flat_assignment(self):
+        # Correct behaviour of ticket #194
+        x = np.empty((3, 1))
+        x.flat = np.arange(3)
+        assert_array_almost_equal(x, [[0], [1], [2]])
+        x.flat = np.arange(3, dtype=float)
+        assert_array_almost_equal(x, [[0], [1], [2]])
+
+    def test_broadcast_flat_assignment(self):
+        # Ticket #194
+        x = np.empty((3, 1))
+
+        def bfa():
+            x[:] = np.arange(3)
+
+        def bfb():
+            x[:] = np.arange(3, dtype=float)
+
+        assert_raises(ValueError, bfa)
+        assert_raises(ValueError, bfb)
+
+    @pytest.mark.xfail(IS_WASM, reason="not sure why")
+    @pytest.mark.parametrize("index",
+            [np.ones(10, dtype=bool), np.arange(10)],
+            ids=["boolean-arr-index", "integer-arr-index"])
+    def test_nonarray_assignment(self, index):
+        # See also Issue gh-2870, test for non-array assignment
+        # and equivalent unsafe casted array assignment
+        a = np.arange(10)
+
+        with pytest.raises(ValueError):
+            a[index] = np.nan
+
+        with np.errstate(invalid="warn"):
+            with pytest.warns(RuntimeWarning, match="invalid value"):
+                a[index] = np.array(np.nan)  # Only warns
+
+    def test_unpickle_dtype_with_object(self):
+        # Implemented in r2840
+        dt = np.dtype([('x', int), ('y', np.object_), ('z', 'O')])
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            with BytesIO() as f:
+                pickle.dump(dt, f, protocol=proto)
+                f.seek(0)
+                dt_ = pickle.load(f)
+            assert_equal(dt, dt_)
+
+    def test_mem_array_creation_invalid_specification(self):
+        # Ticket #196
+        dt = np.dtype([('x', int), ('y', np.object_)])
+        # Wrong way
+        assert_raises(ValueError, np.array, [1, 'object'], dt)
+        # Correct way
+        np.array([(1, 'object')], dt)
+
+    def test_recarray_single_element(self):
+        # Ticket #202
+        a = np.array([1, 2, 3], dtype=np.int32)
+        b = a.copy()
+        r = np.rec.array(a, shape=1, formats=['3i4'], names=['d'])
+        assert_array_equal(a, b)
+        assert_equal(a, r[0][0])
+
+    def test_zero_sized_array_indexing(self):
+        # Ticket #205
+        tmp = np.array([])
+
+        def index_tmp():
+            tmp[np.array(10)]
+
+        assert_raises(IndexError, index_tmp)
+
+    def test_chararray_rstrip(self):
+        # Ticket #222
+        x = np.char.chararray((1,), 5)
+        x[0] = b'a   '
+        x = x.rstrip()
+        assert_equal(x[0], b'a')
+
+    def test_object_array_shape(self):
+        # Ticket #239
+        assert_equal(np.array([[1, 2], 3, 4], dtype=object).shape, (3,))
+        assert_equal(np.array([[1, 2], [3, 4]], dtype=object).shape, (2, 2))
+        assert_equal(np.array([(1, 2), (3, 4)], dtype=object).shape, (2, 2))
+        assert_equal(np.array([], dtype=object).shape, (0,))
+        assert_equal(np.array([[], [], []], dtype=object).shape, (3, 0))
+        assert_equal(np.array([[3, 4], [5, 6], None], dtype=object).shape, (3,))
+
+    def test_mem_around(self):
+        # Ticket #243
+        x = np.zeros((1,))
+        y = [0]
+        decimal = 6
+        np.around(abs(x - y), decimal) <= 10.0**(-decimal)
+
+    def test_character_array_strip(self):
+        # Ticket #246
+        x = np.char.array(("x", "x ", "x  "))
+        for c in x:
+            assert_equal(c, "x")
+
+    def test_lexsort(self):
+        # Lexsort memory error
+        v = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
+        assert_equal(np.lexsort(v), 0)
+
+    def test_lexsort_invalid_sequence(self):
+        # Issue gh-4123
+        class BuggySequence:
+            def __len__(self):
+                return 4
+
+            def __getitem__(self, key):
+                raise KeyError
+
+        assert_raises(KeyError, np.lexsort, BuggySequence())
+
+    def test_lexsort_zerolen_custom_strides(self):
+        # Ticket #14228
+        xs = np.array([], dtype='i8')
+        assert np.lexsort((xs,)).shape[0] == 0  # Works
+
+        xs = as_strided(xs, strides=(16,))
+        assert np.lexsort((xs,)).shape[0] == 0  # Was: MemoryError
+
+    def test_lexsort_zerolen_custom_strides_2d(self):
+        xs = np.array([], dtype='i8')
+        xt = as_strided(xs, shape=(0, 2), strides=(16, 16))
+        assert np.lexsort((xt,), axis=0).shape[0] == 0
+
+        xt = as_strided(xs, shape=(2, 0), strides=(16, 16))
+        assert np.lexsort((xt,), axis=0).shape[0] == 2
+
+    def test_lexsort_invalid_axis(self):
+        assert_raises(AxisError, np.lexsort, (np.arange(1),), axis=2)
+        assert_raises(AxisError, np.lexsort, (np.array([]),), axis=1)
+        assert_raises(AxisError, np.lexsort, (np.array(1),), axis=10)
+
+    def test_lexsort_zerolen_element(self):
+        dt = np.dtype([])  # a void dtype with no fields
+        xs = np.empty(4, dt)
+
+        assert np.lexsort((xs,)).shape[0] == xs.shape[0]
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_pickle_py2_bytes_encoding(self):
+        # Check that arrays and scalars pickled on Py2 are
+        # unpickleable on Py3 using encoding='bytes'
+
+        test_data = [
+            # (original, py2_pickle)
+            (
+                np.str_('\u6f2c'),
+                b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'U1'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'<'\np5\nNNNI4\nI4\nI0\ntp6\nbS',o\\x00\\x00'\np7\ntp8\nRp9\n."
+            ),
+
+            (
+                np.array([9e123], dtype=np.float64),
+                b"cnumpy.core.multiarray\n_reconstruct\np0\n(cnumpy\nndarray\np1\n(I0\ntp2\nS'b'\np3\ntp4\nRp5\n(I1\n(I1\ntp6\ncnumpy\ndtype\np7\n(S'f8'\np8\nI0\nI1\ntp9\nRp10\n(I3\nS'<'\np11\nNNNI-1\nI-1\nI0\ntp12\nbI00\nS'O\\x81\\xb7Z\\xaa:\\xabY'\np13\ntp14\nb."
+            ),
+
+            (
+                np.array([(9e123,)], dtype=[('name', float)]),
+                b"cnumpy.core.multiarray\n_reconstruct\np0\n(cnumpy\nndarray\np1\n(I0\ntp2\nS'b'\np3\ntp4\nRp5\n(I1\n(I1\ntp6\ncnumpy\ndtype\np7\n(S'V8'\np8\nI0\nI1\ntp9\nRp10\n(I3\nS'|'\np11\nN(S'name'\np12\ntp13\n(dp14\ng12\n(g7\n(S'f8'\np15\nI0\nI1\ntp16\nRp17\n(I3\nS'<'\np18\nNNNI-1\nI-1\nI0\ntp19\nbI0\ntp20\nsI8\nI1\nI0\ntp21\nbI00\nS'O\\x81\\xb7Z\\xaa:\\xabY'\np22\ntp23\nb."
+            ),
+        ]
+
+        for original, data in test_data:
+            result = pickle.loads(data, encoding='bytes')
+            assert_equal(result, original)
+
+            if isinstance(result, np.ndarray) and result.dtype.names is not None:
+                for name in result.dtype.names:
+                    assert_(isinstance(name, str))
+
+    def test_pickle_dtype(self):
+        # Ticket #251
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            pickle.dumps(float, protocol=proto)
+
+    def test_swap_real(self):
+        # Ticket #265
+        assert_equal(np.arange(4, dtype='>c8').imag.max(), 0.0)
+        assert_equal(np.arange(4, dtype='<c8').imag.max(), 0.0)
+        assert_equal(np.arange(4, dtype='>c8').real.max(), 3.0)
+        assert_equal(np.arange(4, dtype='<c8').real.max(), 3.0)
+
+    def test_object_array_from_list(self):
+        # Ticket #270 (gh-868)
+        assert_(np.array([1, None, 'A']).shape == (3,))
+
+    def test_multiple_assign(self):
+        # Ticket #273
+        a = np.zeros((3, 1), int)
+        a[[1, 2]] = 1
+
+    def test_empty_array_type(self):
+        assert_equal(np.array([]).dtype, np.zeros(0).dtype)
+
+    def test_void_copyswap(self):
+        dt = np.dtype([('one', '<i4'), ('two', '<i4')])
+        x = np.array((1, 2), dtype=dt)
+        x = x.byteswap()
+        assert_(x['one'] > 1 and x['two'] > 2)
+
+    def test_method_args(self):
+        # Make sure methods and functions have same default axis
+        # keyword and arguments
+        funcs1 = ['argmax', 'argmin', 'sum', 'any', 'all', 'cumsum',
+                  'cumprod', 'prod', 'std', 'var', 'mean',
+                  'round', 'min', 'max', 'argsort', 'sort']
+        funcs2 = ['compress', 'take', 'repeat']
+
+        for func in funcs1:
+            arr = np.random.rand(8, 7)
+            arr2 = arr.copy()
+            res1 = getattr(arr, func)()
+            res2 = getattr(np, func)(arr2)
+            if res1 is None:
+                res1 = arr
+
+            if res1.dtype.kind in 'uib':
+                assert_((res1 == res2).all(), func)
+            else:
+                assert_(abs(res1 - res2).max() < 1e-8, func)
+
+        for func in funcs2:
+            arr1 = np.random.rand(8, 7)
+            arr2 = np.random.rand(8, 7)
+            res1 = None
+            if func == 'compress':
+                arr1 = arr1.ravel()
+                res1 = getattr(arr2, func)(arr1)
+            else:
+                arr2 = (15 * arr2).astype(int).ravel()
+            if res1 is None:
+                res1 = getattr(arr1, func)(arr2)
+            res2 = getattr(np, func)(arr1, arr2)
+            assert_(abs(res1 - res2).max() < 1e-8, func)
+
+    def test_mem_lexsort_strings(self):
+        # Ticket #298
+        lst = ['abc', 'cde', 'fgh']
+        np.lexsort((lst,))
+
+    def test_fancy_index(self):
+        # Ticket #302
+        x = np.array([1, 2])[np.array([0])]
+        assert_equal(x.shape, (1,))
+
+    def test_recarray_copy(self):
+        # Ticket #312
+        dt = [('x', np.int16), ('y', np.float64)]
+        ra = np.array([(1, 2.3)], dtype=dt)
+        rb = np.rec.array(ra, dtype=dt)
+        rb['x'] = 2.
+        assert_(ra['x'] != rb['x'])
+
+    def test_rec_fromarray(self):
+        # Ticket #322
+        x1 = np.array([[1, 2], [3, 4], [5, 6]])
+        x2 = np.array(['a', 'dd', 'xyz'])
+        x3 = np.array([1.1, 2, 3])
+        np.rec.fromarrays([x1, x2, x3], formats="(2,)i4,S3,f8")
+
+    def test_object_array_assign(self):
+        x = np.empty((2, 2), object)
+        x.flat[2] = (1, 2, 3)
+        assert_equal(x.flat[2], (1, 2, 3))
+
+    def test_ndmin_float64(self):
+        # Ticket #324
+        x = np.array([1, 2, 3], dtype=np.float64)
+        assert_equal(np.array(x, dtype=np.float32, ndmin=2).ndim, 2)
+        assert_equal(np.array(x, dtype=np.float64, ndmin=2).ndim, 2)
+
+    def test_ndmin_order(self):
+        # Issue #465 and related checks
+        assert_(np.array([1, 2], order='C', ndmin=3).flags.c_contiguous)
+        assert_(np.array([1, 2], order='F', ndmin=3).flags.f_contiguous)
+        assert_(np.array(np.ones((2, 2), order='F'), ndmin=3).flags.f_contiguous)
+        assert_(np.array(np.ones((2, 2), order='C'), ndmin=3).flags.c_contiguous)
+
+    def test_mem_axis_minimization(self):
+        # Ticket #327
+        data = np.arange(5)
+        data = np.add.outer(data, data)
+
+    def test_mem_float_imag(self):
+        # Ticket #330
+        np.float64(1.0).imag
+
+    def test_dtype_tuple(self):
+        # Ticket #334
+        assert_(np.dtype('i4') == np.dtype(('i4', ())))
+
+    def test_dtype_posttuple(self):
+        # Ticket #335
+        np.dtype([('col1', '()i4')])
+
+    def test_numeric_carray_compare(self):
+        # Ticket #341
+        assert_equal(np.array(['X'], 'c'), b'X')
+
+    def test_string_array_size(self):
+        # Ticket #342
+        assert_raises(ValueError,
+                              np.array, [['X'], ['X', 'X', 'X']], '|S1')
+
+    def test_dtype_repr(self):
+        # Ticket #344
+        dt1 = np.dtype(('uint32', 2))
+        dt2 = np.dtype(('uint32', (2,)))
+        assert_equal(dt1.__repr__(), dt2.__repr__())
+
+    def test_reshape_order(self):
+        # Make sure reshape order works.
+        a = np.arange(6).reshape(2, 3, order='F')
+        assert_equal(a, [[0, 2, 4], [1, 3, 5]])
+        a = np.array([[1, 2], [3, 4], [5, 6], [7, 8]])
+        b = a[:, 1]
+        assert_equal(b.reshape(2, 2, order='F'), [[2, 6], [4, 8]])
+
+    def test_reshape_zero_strides(self):
+        # Issue #380, test reshaping of zero strided arrays
+        a = np.ones(1)
+        a = as_strided(a, shape=(5,), strides=(0,))
+        assert_(a.reshape(5, 1).strides[0] == 0)
+
+    def test_reshape_zero_size(self):
+        # GitHub Issue #2700, setting shape failed for 0-sized arrays
+        a = np.ones((0, 2))
+        a.shape = (-1, 2)
+
+    def test_reshape_trailing_ones_strides(self):
+        # GitHub issue gh-2949, bad strides for trailing ones of new shape
+        a = np.zeros(12, dtype=np.int32)[::2]  # not contiguous
+        strides_c = (16, 8, 8, 8)
+        strides_f = (8, 24, 48, 48)
+        assert_equal(a.reshape(3, 2, 1, 1).strides, strides_c)
+        assert_equal(a.reshape(3, 2, 1, 1, order='F').strides, strides_f)
+        assert_equal(np.array(0, dtype=np.int32).reshape(1, 1).strides, (4, 4))
+
+    def test_repeat_discont(self):
+        # Ticket #352
+        a = np.arange(12).reshape(4, 3)[:, 2]
+        assert_equal(a.repeat(3), [2, 2, 2, 5, 5, 5, 8, 8, 8, 11, 11, 11])
+
+    def test_array_index(self):
+        # Make sure optimization is not called in this case.
+        a = np.array([1, 2, 3])
+        a2 = np.array([[1, 2, 3]])
+        assert_equal(a[np.where(a == 3)], a2[np.where(a2 == 3)])
+
+    def test_object_argmax(self):
+        a = np.array([1, 2, 3], dtype=object)
+        assert_(a.argmax() == 2)
+
+    def test_recarray_fields(self):
+        # Ticket #372
+        dt0 = np.dtype([('f0', 'i4'), ('f1', 'i4')])
+        dt1 = np.dtype([('f0', 'i8'), ('f1', 'i8')])
+        for a in [np.array([(1, 2), (3, 4)], "i4,i4"),
+                  np.rec.array([(1, 2), (3, 4)], "i4,i4"),
+                  np.rec.array([(1, 2), (3, 4)]),
+                  np.rec.fromarrays([(1, 2), (3, 4)], "i4,i4"),
+                  np.rec.fromarrays([(1, 2), (3, 4)])]:
+            assert_(a.dtype in [dt0, dt1])
+
+    def test_random_shuffle(self):
+        # Ticket #374
+        a = np.arange(5).reshape((5, 1))
+        b = a.copy()
+        np.random.shuffle(b)
+        assert_equal(np.sort(b, axis=0), a)
+
+    def test_refcount_vdot(self):
+        # Changeset #3443
+        _assert_valid_refcount(np.vdot)
+
+    def test_startswith(self):
+        ca = np.char.array(['Hi', 'There'])
+        assert_equal(ca.startswith('H'), [True, False])
+
+    def test_noncommutative_reduce_accumulate(self):
+        # Ticket #413
+        tosubtract = np.arange(5)
+        todivide = np.array([2.0, 0.5, 0.25])
+        assert_equal(np.subtract.reduce(tosubtract), -10)
+        assert_equal(np.divide.reduce(todivide), 16.0)
+        assert_array_equal(np.subtract.accumulate(tosubtract),
+            np.array([0, -1, -3, -6, -10]))
+        assert_array_equal(np.divide.accumulate(todivide),
+            np.array([2., 4., 16.]))
+
+    def test_convolve_empty(self):
+        # Convolve should raise an error for empty input array.
+        assert_raises(ValueError, np.convolve, [], [1])
+        assert_raises(ValueError, np.convolve, [1], [])
+
+    def test_multidim_byteswap(self):
+        # Ticket #449
+        r = np.array([(1, (0, 1, 2))], dtype="i2,3i2")
+        assert_array_equal(r.byteswap(),
+                           np.array([(256, (0, 256, 512))], r.dtype))
+
+    def test_string_NULL(self):
+        # Changeset 3557
+        assert_equal(np.array("a\x00\x0b\x0c\x00").item(),
+                     'a\x00\x0b\x0c')
+
+    def test_junk_in_string_fields_of_recarray(self):
+        # Ticket #483
+        r = np.array([[b'abc']], dtype=[('var1', '|S20')])
+        assert_(asbytes(r['var1'][0][0]) == b'abc')
+
+    def test_take_output(self):
+        # Ensure that 'take' honours output parameter.
+        x = np.arange(12).reshape((3, 4))
+        a = np.take(x, [0, 2], axis=1)
+        b = np.zeros_like(a)
+        np.take(x, [0, 2], axis=1, out=b)
+        assert_array_equal(a, b)
+
+    def test_take_object_fail(self):
+        # Issue gh-3001
+        d = 123.
+        a = np.array([d, 1], dtype=object)
+        if HAS_REFCOUNT:
+            ref_d = sys.getrefcount(d)
+        try:
+            a.take([0, 100])
+        except IndexError:
+            pass
+        if HAS_REFCOUNT:
+            assert_(ref_d == sys.getrefcount(d))
+
+    def test_array_str_64bit(self):
+        # Ticket #501
+        s = np.array([1, np.nan], dtype=np.float64)
+        with np.errstate(all='raise'):
+            np.array_str(s)  # Should succeed
+
+    def test_frompyfunc_endian(self):
+        # Ticket #503
+        from math import radians
+        uradians = np.frompyfunc(radians, 1, 1)
+        big_endian = np.array([83.4, 83.5], dtype='>f8')
+        little_endian = np.array([83.4, 83.5], dtype='<f8')
+        assert_almost_equal(uradians(big_endian).astype(float),
+                            uradians(little_endian).astype(float))
+
+    def test_mem_string_arr(self):
+        # Ticket #514
+        s = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+        t = []
+        np.hstack((t, s))
+
+    def test_arr_transpose(self):
+        # Ticket #516
+        x = np.random.rand(*(2,) * 16)
+        x.transpose(list(range(16)))  # Should succeed
+
+    def test_string_mergesort(self):
+        # Ticket #540
+        x = np.array(['a'] * 32)
+        assert_array_equal(x.argsort(kind='m'), np.arange(32))
+
+    def test_argmax_byteorder(self):
+        # Ticket #546
+        a = np.arange(3, dtype='>f')
+        assert_(a[a.argmax()] == a.max())
+
+    def test_rand_seed(self):
+        # Ticket #555
+        for l in np.arange(4):
+            np.random.seed(l)
+
+    def test_mem_deallocation_leak(self):
+        # Ticket #562
+        a = np.zeros(5, dtype=float)
+        b = np.array(a, dtype=float)
+        del a, b
+
+    def test_mem_on_invalid_dtype(self):
+        "Ticket #583"
+        assert_raises(ValueError, np.fromiter, [['12', ''], ['13', '']], str)
+
+    def test_dot_negative_stride(self):
+        # Ticket #588
+        x = np.array([[1, 5, 25, 125., 625]])
+        y = np.array([[20.], [160.], [640.], [1280.], [1024.]])
+        z = y[::-1].copy()
+        y2 = y[::-1]
+        assert_equal(np.dot(x, z), np.dot(x, y2))
+
+    def test_object_casting(self):
+        # This used to trigger the object-type version of
+        # the bitwise_or operation, because float64 -> object
+        # casting succeeds
+        def rs():
+            x = np.ones([484, 286])
+            y = np.zeros([484, 286])
+            x |= y
+
+        assert_raises(TypeError, rs)
+
+    def test_unicode_scalar(self):
+        # Ticket #600
+        x = np.array(["DROND", "DROND1"], dtype="U6")
+        el = x[1]
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            new = pickle.loads(pickle.dumps(el, protocol=proto))
+            assert_equal(new, el)
+
+    def test_arange_non_native_dtype(self):
+        # Ticket #616
+        for T in ('>f4', '<f4'):
+            dt = np.dtype(T)
+            assert_equal(np.arange(0, dtype=dt).dtype, dt)
+            assert_equal(np.arange(0.5, dtype=dt).dtype, dt)
+            assert_equal(np.arange(5, dtype=dt).dtype, dt)
+
+    def test_bool_flat_indexing_invalid_nr_elements(self):
+        s = np.ones(10, dtype=float)
+        x = np.array((15,), dtype=float)
+
+        def ia(x, s, v):
+            x[(s > 0)] = v
+
+        assert_raises(IndexError, ia, x, s, np.zeros(9, dtype=float))
+        assert_raises(IndexError, ia, x, s, np.zeros(11, dtype=float))
+
+        # Old special case (different code path):
+        assert_raises(IndexError, ia, x.flat, s, np.zeros(9, dtype=float))
+        assert_raises(IndexError, ia, x.flat, s, np.zeros(11, dtype=float))
+
+    def test_mem_scalar_indexing(self):
+        # Ticket #603
+        x = np.array([0], dtype=float)
+        index = np.array(0, dtype=np.int32)
+        x[index]
+
+    def test_binary_repr_0_width(self):
+        assert_equal(np.binary_repr(0, width=3), '000')
+
+    def test_fromstring(self):
+        assert_equal(np.fromstring("12:09:09", dtype=int, sep=":"),
+                     [12, 9, 9])
+
+    def test_searchsorted_variable_length(self):
+        x = np.array(['a', 'aa', 'b'])
+        y = np.array(['d', 'e'])
+        assert_equal(x.searchsorted(y), [3, 3])
+
+    def test_string_argsort_with_zeros(self):
+        # Check argsort for strings containing zeros.
+        x = np.frombuffer(b"\x00\x02\x00\x01", dtype="|S2")
+        assert_array_equal(x.argsort(kind='m'), np.array([1, 0]))
+        assert_array_equal(x.argsort(kind='q'), np.array([1, 0]))
+
+    def test_string_sort_with_zeros(self):
+        # Check sort for strings containing zeros.
+        x = np.frombuffer(b"\x00\x02\x00\x01", dtype="|S2")
+        y = np.frombuffer(b"\x00\x01\x00\x02", dtype="|S2")
+        assert_array_equal(np.sort(x, kind="q"), y)
+
+    def test_copy_detection_zero_dim(self):
+        # Ticket #658
+        np.indices((0, 3, 4)).T.reshape(-1, 3)
+
+    def test_flat_byteorder(self):
+        # Ticket #657
+        x = np.arange(10)
+        assert_array_equal(x.astype('>i4'), x.astype('<i4').flat[:])
+        assert_array_equal(x.astype('>i4').flat[:], x.astype('<i4'))
+
+    def test_sign_bit(self):
+        x = np.array([0, -0.0, 0])
+        assert_equal(str(np.abs(x)), '[0. 0. 0.]')
+
+    def test_flat_index_byteswap(self):
+        for dt in (np.dtype('<i4'), np.dtype('>i4')):
+            x = np.array([-1, 0, 1], dtype=dt)
+            assert_equal(x.flat[0].dtype, x[0].dtype)
+
+    def test_copy_detection_corner_case(self):
+        # Ticket #658
+        np.indices((0, 3, 4)).T.reshape(-1, 3)
+
+    def test_object_array_refcounting(self):
+        # Ticket #633
+        if not hasattr(sys, 'getrefcount'):
+            return
+
+        # NB. this is probably CPython-specific
+
+        cnt = sys.getrefcount
+
+        a = object()
+        b = object()
+        c = object()
+
+        cnt0_a = cnt(a)
+        cnt0_b = cnt(b)
+        cnt0_c = cnt(c)
+
+        # -- 0d -> 1-d broadcast slice assignment
+
+        arr = np.zeros(5, dtype=np.object_)
+
+        arr[:] = a
+        assert_equal(cnt(a), cnt0_a + 5)
+
+        arr[:] = b
+        assert_equal(cnt(a), cnt0_a)
+        assert_equal(cnt(b), cnt0_b + 5)
+
+        arr[:2] = c
+        assert_equal(cnt(b), cnt0_b + 3)
+        assert_equal(cnt(c), cnt0_c + 2)
+
+        del arr
+
+        # -- 1-d -> 2-d broadcast slice assignment
+
+        arr = np.zeros((5, 2), dtype=np.object_)
+        arr0 = np.zeros(2, dtype=np.object_)
+
+        arr0[0] = a
+        assert_(cnt(a) == cnt0_a + 1)
+        arr0[1] = b
+        assert_(cnt(b) == cnt0_b + 1)
+
+        arr[:, :] = arr0
+        assert_(cnt(a) == cnt0_a + 6)
+        assert_(cnt(b) == cnt0_b + 6)
+
+        arr[:, 0] = None
+        assert_(cnt(a) == cnt0_a + 1)
+
+        del arr, arr0
+
+        # -- 2-d copying + flattening
+
+        arr = np.zeros((5, 2), dtype=np.object_)
+
+        arr[:, 0] = a
+        arr[:, 1] = b
+        assert_(cnt(a) == cnt0_a + 5)
+        assert_(cnt(b) == cnt0_b + 5)
+
+        arr2 = arr.copy()
+        assert_(cnt(a) == cnt0_a + 10)
+        assert_(cnt(b) == cnt0_b + 10)
+
+        arr2 = arr[:, 0].copy()
+        assert_(cnt(a) == cnt0_a + 10)
+        assert_(cnt(b) == cnt0_b + 5)
+
+        arr2 = arr.flatten()
+        assert_(cnt(a) == cnt0_a + 10)
+        assert_(cnt(b) == cnt0_b + 10)
+
+        del arr, arr2
+
+        # -- concatenate, repeat, take, choose
+
+        arr1 = np.zeros((5, 1), dtype=np.object_)
+        arr2 = np.zeros((5, 1), dtype=np.object_)
+
+        arr1[...] = a
+        arr2[...] = b
+        assert_(cnt(a) == cnt0_a + 5)
+        assert_(cnt(b) == cnt0_b + 5)
+
+        tmp = np.concatenate((arr1, arr2))
+        assert_(cnt(a) == cnt0_a + 5 + 5)
+        assert_(cnt(b) == cnt0_b + 5 + 5)
+
+        tmp = arr1.repeat(3, axis=0)
+        assert_(cnt(a) == cnt0_a + 5 + 3 * 5)
+
+        tmp = arr1.take([1, 2, 3], axis=0)
+        assert_(cnt(a) == cnt0_a + 5 + 3)
+
+        x = np.array([[0], [1], [0], [1], [1]], int)
+        tmp = x.choose(arr1, arr2)
+        assert_(cnt(a) == cnt0_a + 5 + 2)
+        assert_(cnt(b) == cnt0_b + 5 + 3)
+
+    def test_mem_custom_float_to_array(self):
+        # Ticket 702
+        class MyFloat:
+            def __float__(self):
+                return 1.0
+
+        tmp = np.atleast_1d([MyFloat()])
+        tmp.astype(float)  # Should succeed
+
+    def test_object_array_refcount_self_assign(self):
+        # Ticket #711
+        class VictimObject:
+            deleted = False
+
+            def __del__(self):
+                self.deleted = True
+
+        d = VictimObject()
+        arr = np.zeros(5, dtype=np.object_)
+        arr[:] = d
+        del d
+        arr[:] = arr  # refcount of 'd' might hit zero here
+        assert_(not arr[0].deleted)
+        arr[:] = arr  # trying to induce a segfault by doing it again...
+        assert_(not arr[0].deleted)
+
+    def test_mem_fromiter_invalid_dtype_string(self):
+        x = [1, 2, 3]
+        assert_raises(ValueError,
+                              np.fromiter, list(x), dtype='S')
+
+    def test_reduce_big_object_array(self):
+        # Ticket #713
+        oldsize = np.setbufsize(10 * 16)
+        a = np.array([None] * 161, object)
+        assert_(not np.any(a))
+        np.setbufsize(oldsize)
+
+    def test_mem_0d_array_index(self):
+        # Ticket #714
+        np.zeros(10)[np.array(0)]
+
+    def test_nonnative_endian_fill(self):
+        # Non-native endian arrays were incorrectly filled with scalars
+        # before r5034.
+        if sys.byteorder == 'little':
+            dtype = np.dtype('>i4')
+        else:
+            dtype = np.dtype('<i4')
+        x = np.empty([1], dtype=dtype)
+        x.fill(1)
+        assert_equal(x, np.array([1], dtype=dtype))
+
+    def test_dot_alignment_sse2(self):
+        # Test for ticket #551, changeset r5140
+        x = np.zeros((30, 40))
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            y = pickle.loads(pickle.dumps(x, protocol=proto))
+            # y is now typically not aligned on a 8-byte boundary
+            z = np.ones((1, y.shape[0]))
+            # This shouldn't cause a segmentation fault:
+            np.dot(z, y)
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_astype_copy(self):
+        # Ticket #788, changeset r5155
+        # The test data file was generated by scipy.io.savemat.
+        # The dtype is float64, but the isbuiltin attribute is 0.
+        data_dir = path.join(path.dirname(__file__), 'data')
+        filename = path.join(data_dir, "astype_copy.pkl")
+        with open(filename, 'rb') as f:
+            xp = pickle.load(f, encoding='latin1')
+        xpd = xp.astype(np.float64)
+        assert_(xp.__array_interface__['data'][0] !=
+                xpd.__array_interface__['data'][0])
+
+    def test_compress_small_type(self):
+        # Ticket #789, changeset 5217.
+        # compress with out argument segfaulted if cannot cast safely
+        import numpy as np
+        a = np.array([[1, 2], [3, 4]])
+        b = np.zeros((2, 1), dtype=np.single)
+        try:
+            a.compress([True, False], axis=1, out=b)
+            raise AssertionError("compress with an out which cannot be "
+                                 "safely casted should not return "
+                                 "successfully")
+        except TypeError:
+            pass
+
+    def test_attributes(self):
+        # Ticket #791
+        class TestArray(np.ndarray):
+            def __new__(cls, data, info):
+                result = np.array(data)
+                result = result.view(cls)
+                result.info = info
+                return result
+
+            def __array_finalize__(self, obj):
+                self.info = getattr(obj, 'info', '')
+
+        dat = TestArray([[1, 2, 3, 4], [5, 6, 7, 8]], 'jubba')
+        assert_(dat.info == 'jubba')
+        dat.resize((4, 2))
+        assert_(dat.info == 'jubba')
+        dat.sort()
+        assert_(dat.info == 'jubba')
+        dat.fill(2)
+        assert_(dat.info == 'jubba')
+        dat.put([2, 3, 4], [6, 3, 4])
+        assert_(dat.info == 'jubba')
+        dat.setfield(4, np.int32, 0)
+        assert_(dat.info == 'jubba')
+        dat.setflags()
+        assert_(dat.info == 'jubba')
+        assert_(dat.all(1).info == 'jubba')
+        assert_(dat.any(1).info == 'jubba')
+        assert_(dat.argmax(1).info == 'jubba')
+        assert_(dat.argmin(1).info == 'jubba')
+        assert_(dat.argsort(1).info == 'jubba')
+        assert_(dat.astype(TestArray).info == 'jubba')
+        assert_(dat.byteswap().info == 'jubba')
+        assert_(dat.clip(2, 7).info == 'jubba')
+        assert_(dat.compress([0, 1, 1]).info == 'jubba')
+        assert_(dat.conj().info == 'jubba')
+        assert_(dat.conjugate().info == 'jubba')
+        assert_(dat.copy().info == 'jubba')
+        dat2 = TestArray([2, 3, 1, 0], 'jubba')
+        choices = [[0, 1, 2, 3], [10, 11, 12, 13],
+                   [20, 21, 22, 23], [30, 31, 32, 33]]
+        assert_(dat2.choose(choices).info == 'jubba')
+        assert_(dat.cumprod(1).info == 'jubba')
+        assert_(dat.cumsum(1).info == 'jubba')
+        assert_(dat.diagonal().info == 'jubba')
+        assert_(dat.flatten().info == 'jubba')
+        assert_(dat.getfield(np.int32, 0).info == 'jubba')
+        assert_(dat.imag.info == 'jubba')
+        assert_(dat.max(1).info == 'jubba')
+        assert_(dat.mean(1).info == 'jubba')
+        assert_(dat.min(1).info == 'jubba')
+        assert_(dat.prod(1).info == 'jubba')
+        assert_(dat.ravel().info == 'jubba')
+        assert_(dat.real.info == 'jubba')
+        assert_(dat.repeat(2).info == 'jubba')
+        assert_(dat.reshape((2, 4)).info == 'jubba')
+        assert_(dat.round().info == 'jubba')
+        assert_(dat.squeeze().info == 'jubba')
+        assert_(dat.std(1).info == 'jubba')
+        assert_(dat.sum(1).info == 'jubba')
+        assert_(dat.swapaxes(0, 1).info == 'jubba')
+        assert_(dat.take([2, 3, 5]).info == 'jubba')
+        assert_(dat.transpose().info == 'jubba')
+        assert_(dat.T.info == 'jubba')
+        assert_(dat.var(1).info == 'jubba')
+        assert_(dat.view(TestArray).info == 'jubba')
+        # These methods do not preserve subclasses
+        assert_(type(dat.nonzero()[0]) is np.ndarray)
+        assert_(type(dat.nonzero()[1]) is np.ndarray)
+
+    def test_recarray_tolist(self):
+        # Ticket #793, changeset r5215
+        # Comparisons fail for NaN, so we can't use random memory
+        # for the test.
+        buf = np.zeros(40, dtype=np.int8)
+        a = np.recarray(2, formats="i4,f8,f8", names="id,x,y", buf=buf)
+        b = a.tolist()
+        assert_(a[0].tolist() == b[0])
+        assert_(a[1].tolist() == b[1])
+
+    def test_nonscalar_item_method(self):
+        # Make sure that .item() fails graciously when it should
+        a = np.arange(5)
+        assert_raises(ValueError, a.item)
+
+    def test_char_array_creation(self):
+        a = np.array('123', dtype='c')
+        b = np.array([b'1', b'2', b'3'])
+        assert_equal(a, b)
+
+    def test_unaligned_unicode_access(self):
+        # Ticket #825
+        for i in range(1, 9):
+            msg = 'unicode offset: %d chars' % i
+            t = np.dtype([('a', 'S%d' % i), ('b', 'U2')])
+            x = np.array([(b'a', 'b')], dtype=t)
+            assert_equal(str(x), "[(b'a', 'b')]", err_msg=msg)
+
+    def test_sign_for_complex_nan(self):
+        # Ticket 794.
+        with np.errstate(invalid='ignore'):
+            C = np.array([-np.inf, -3 + 4j, 0, 4 - 3j, np.inf, np.nan])
+            have = np.sign(C)
+            want = np.array([-1 + 0j, -0.6 + 0.8j, 0 + 0j, 0.8 - 0.6j, 1 + 0j,
+                             complex(np.nan, np.nan)])
+            assert_equal(have, want)
+
+    def test_for_equal_names(self):
+        # Ticket #674
+        dt = np.dtype([('foo', float), ('bar', float)])
+        a = np.zeros(10, dt)
+        b = list(a.dtype.names)
+        b[0] = "notfoo"
+        a.dtype.names = b
+        assert_(a.dtype.names[0] == "notfoo")
+        assert_(a.dtype.names[1] == "bar")
+
+    def test_for_object_scalar_creation(self):
+        # Ticket #816
+        a = np.object_()
+        b = np.object_(3)
+        b2 = np.object_(3.0)
+        c = np.object_([4, 5])
+        d = np.object_([None, {}, []])
+        assert_(a is None)
+        assert_(type(b) is int)
+        assert_(type(b2) is float)
+        assert_(type(c) is np.ndarray)
+        assert_(c.dtype == object)
+        assert_(d.dtype == object)
+
+    def test_array_resize_method_system_error(self):
+        # Ticket #840 - order should be an invalid keyword.
+        x = np.array([[0, 1], [2, 3]])
+        assert_raises(TypeError, x.resize, (2, 2), order='C')
+
+    def test_for_zero_length_in_choose(self):
+        "Ticket #882"
+        a = np.array(1)
+        assert_raises(ValueError, lambda x: x.choose([]), a)
+
+    def test_array_ndmin_overflow(self):
+        "Ticket #947."
+        assert_raises(ValueError, lambda: np.array([1], ndmin=65))
+
+    def test_void_scalar_with_titles(self):
+        # No ticket
+        data = [('john', 4), ('mary', 5)]
+        dtype1 = [(('source:yy', 'name'), 'O'), (('source:xx', 'id'), int)]
+        arr = np.array(data, dtype=dtype1)
+        assert_(arr[0][0] == 'john')
+        assert_(arr[0][1] == 4)
+
+    def test_void_scalar_constructor(self):
+        # Issue #1550
+
+        # Create test string data, construct void scalar from data and assert
+        # that void scalar contains original data.
+        test_string = np.array("test")
+        test_string_void_scalar = np._core.multiarray.scalar(
+            np.dtype(("V", test_string.dtype.itemsize)), test_string.tobytes())
+
+        assert_(test_string_void_scalar.view(test_string.dtype) == test_string)
+
+        # Create record scalar, construct from data and assert that
+        # reconstructed scalar is correct.
+        test_record = np.ones((), "i,i")
+        test_record_void_scalar = np._core.multiarray.scalar(
+            test_record.dtype, test_record.tobytes())
+
+        assert_(test_record_void_scalar == test_record)
+
+        # Test pickle and unpickle of void and record scalars
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            assert_(pickle.loads(
+                pickle.dumps(test_string, protocol=proto)) == test_string)
+            assert_(pickle.loads(
+                pickle.dumps(test_record, protocol=proto)) == test_record)
+
+    @_no_tracing
+    def test_blasdot_uninitialized_memory(self):
+        # Ticket #950
+        for m in [0, 1, 2]:
+            for n in [0, 1, 2]:
+                for k in range(3):
+                    # Try to ensure that x->data contains non-zero floats
+                    x = np.array([123456789e199], dtype=np.float64)
+                    if IS_PYPY:
+                        x.resize((m, 0), refcheck=False)
+                    else:
+                        x.resize((m, 0))
+                    y = np.array([123456789e199], dtype=np.float64)
+                    if IS_PYPY:
+                        y.resize((0, n), refcheck=False)
+                    else:
+                        y.resize((0, n))
+
+                    # `dot` should just return zero (m, n) matrix
+                    z = np.dot(x, y)
+                    assert_(np.all(z == 0))
+                    assert_(z.shape == (m, n))
+
+    def test_zeros(self):
+        # Regression test for #1061.
+        # Set a size which cannot fit into a 64 bits signed integer
+        sz = 2 ** 64
+        with assert_raises_regex(ValueError,
+                                 'Maximum allowed dimension exceeded'):
+            np.empty(sz)
+
+    def test_huge_arange(self):
+        # Regression test for #1062.
+        # Set a size which cannot fit into a 64 bits signed integer
+        sz = 2 ** 64
+        with assert_raises_regex(ValueError,
+                                 'Maximum allowed size exceeded'):
+            np.arange(sz)
+            assert_(np.size == sz)
+
+    def test_fromiter_bytes(self):
+        # Ticket #1058
+        a = np.fromiter(list(range(10)), dtype='b')
+        b = np.fromiter(list(range(10)), dtype='B')
+        assert_(np.all(a == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])))
+        assert_(np.all(b == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])))
+
+    def test_array_from_sequence_scalar_array(self):
+        # Ticket #1078: segfaults when creating an array with a sequence of
+        # 0d arrays.
+        a = np.array((np.ones(2), np.array(2)), dtype=object)
+        assert_equal(a.shape, (2,))
+        assert_equal(a.dtype, np.dtype(object))
+        assert_equal(a[0], np.ones(2))
+        assert_equal(a[1], np.array(2))
+
+        a = np.array(((1,), np.array(1)), dtype=object)
+        assert_equal(a.shape, (2,))
+        assert_equal(a.dtype, np.dtype(object))
+        assert_equal(a[0], (1,))
+        assert_equal(a[1], np.array(1))
+
+    def test_array_from_sequence_scalar_array2(self):
+        # Ticket #1081: weird array with strange input...
+        t = np.array([np.array([]), np.array(0, object)], dtype=object)
+        assert_equal(t.shape, (2,))
+        assert_equal(t.dtype, np.dtype(object))
+
+    def test_array_too_big(self):
+        # Ticket #1080.
+        assert_raises(ValueError, np.zeros, [975] * 7, np.int8)
+        assert_raises(ValueError, np.zeros, [26244] * 5, np.int8)
+
+    def test_dtype_keyerrors_(self):
+        # Ticket #1106.
+        dt = np.dtype([('f1', np.uint)])
+        assert_raises(KeyError, dt.__getitem__, "f2")
+        assert_raises(IndexError, dt.__getitem__, 1)
+        assert_raises(TypeError, dt.__getitem__, 0.0)
+
+    def test_lexsort_buffer_length(self):
+        # Ticket #1217, don't segfault.
+        a = np.ones(100, dtype=np.int8)
+        b = np.ones(100, dtype=np.int32)
+        i = np.lexsort((a[::-1], b))
+        assert_equal(i, np.arange(100, dtype=int))
+
+    def test_object_array_to_fixed_string(self):
+        # Ticket #1235.
+        a = np.array(['abcdefgh', 'ijklmnop'], dtype=np.object_)
+        b = np.array(a, dtype=(np.str_, 8))
+        assert_equal(a, b)
+        c = np.array(a, dtype=(np.str_, 5))
+        assert_equal(c, np.array(['abcde', 'ijklm']))
+        d = np.array(a, dtype=(np.str_, 12))
+        assert_equal(a, d)
+        e = np.empty((2, ), dtype=(np.str_, 8))
+        e[:] = a[:]
+        assert_equal(a, e)
+
+    def test_unicode_to_string_cast(self):
+        # Ticket #1240.
+        a = np.array([['abc', '\u03a3'],
+                      ['asdf', 'erw']],
+                     dtype='U')
+        assert_raises(UnicodeEncodeError, np.array, a, 'S4')
+
+    def test_unicode_to_string_cast_error(self):
+        # gh-15790
+        a = np.array(['\x80'] * 129, dtype='U3')
+        assert_raises(UnicodeEncodeError, np.array, a, 'S')
+        b = a.reshape(3, 43)[:-1, :-1]
+        assert_raises(UnicodeEncodeError, np.array, b, 'S')
+
+    def test_mixed_string_byte_array_creation(self):
+        a = np.array(['1234', b'123'])
+        assert_(a.itemsize == 16)
+        a = np.array([b'123', '1234'])
+        assert_(a.itemsize == 16)
+        a = np.array(['1234', b'123', '12345'])
+        assert_(a.itemsize == 20)
+        a = np.array([b'123', '1234', b'12345'])
+        assert_(a.itemsize == 20)
+        a = np.array([b'123', '1234', b'1234'])
+        assert_(a.itemsize == 16)
+
+    def test_misaligned_objects_segfault(self):
+        # Ticket #1198 and #1267
+        a1 = np.zeros((10,), dtype='O,c')
+        a2 = np.array(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'], 'S10')
+        a1['f0'] = a2
+        repr(a1)
+        np.argmax(a1['f0'])
+        a1['f0'][1] = "FOO"
+        a1['f0'] = "FOO"
+        np.array(a1['f0'], dtype='S')
+        np.nonzero(a1['f0'])
+        a1.sort()
+        copy.deepcopy(a1)
+
+    def test_misaligned_scalars_segfault(self):
+        # Ticket #1267
+        s1 = np.array(('a', 'Foo'), dtype='c,O')
+        s2 = np.array(('b', 'Bar'), dtype='c,O')
+        s1['f1'] = s2['f1']
+        s1['f1'] = 'Baz'
+
+    def test_misaligned_dot_product_objects(self):
+        # Ticket #1267
+        # This didn't require a fix, but it's worth testing anyway, because
+        # it may fail if .dot stops enforcing the arrays to be BEHAVED
+        a = np.array([[(1, 'a'), (0, 'a')], [(0, 'a'), (1, 'a')]], dtype='O,c')
+        b = np.array([[(4, 'a'), (1, 'a')], [(2, 'a'), (2, 'a')]], dtype='O,c')
+        np.dot(a['f0'], b['f0'])
+
+    def test_byteswap_complex_scalar(self):
+        # Ticket #1259 and gh-441
+        for dtype in [np.dtype('<' + t) for t in np.typecodes['Complex']]:
+            z = np.array([2.2 - 1.1j], dtype)
+            x = z[0]  # always native-endian
+            y = x.byteswap()
+            if x.dtype.byteorder == z.dtype.byteorder:
+                # little-endian machine
+                assert_equal(x, np.frombuffer(y.tobytes(), dtype=dtype.newbyteorder()))
+            else:
+                # big-endian machine
+                assert_equal(x, np.frombuffer(y.tobytes(), dtype=dtype))
+            # double check real and imaginary parts:
+            assert_equal(x.real, y.real.byteswap())
+            assert_equal(x.imag, y.imag.byteswap())
+
+    def test_structured_arrays_with_objects1(self):
+        # Ticket #1299
+        stra = 'aaaa'
+        strb = 'bbbb'
+        x = np.array([[(0, stra), (1, strb)]], 'i8,O')
+        x[x.nonzero()] = x.ravel()[:1]
+        assert_(x[0, 1] == x[0, 0])
+
+    @pytest.mark.skipif(
+        sys.version_info >= (3, 12),
+        reason="Python 3.12 has immortal refcounts, this test no longer works."
+    )
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_structured_arrays_with_objects2(self):
+        # Ticket #1299 second test
+        stra = 'aaaa'
+        strb = 'bbbb'
+        numb = sys.getrefcount(strb)
+        numa = sys.getrefcount(stra)
+        x = np.array([[(0, stra), (1, strb)]], 'i8,O')
+        x[x.nonzero()] = x.ravel()[:1]
+        assert_(sys.getrefcount(strb) == numb)
+        assert_(sys.getrefcount(stra) == numa + 2)
+
+    def test_duplicate_title_and_name(self):
+        # Ticket #1254
+        dtspec = [(('a', 'a'), 'i'), ('b', 'i')]
+        assert_raises(ValueError, np.dtype, dtspec)
+
+    def test_signed_integer_division_overflow(self):
+        # Ticket #1317.
+        def test_type(t):
+            min = np.array([np.iinfo(t).min])
+            min //= -1
+
+        with np.errstate(over="ignore"):
+            for t in (np.int8, np.int16, np.int32, np.int64, int):
+                test_type(t)
+
+    def test_buffer_hashlib(self):
+        from hashlib import sha256
+
+        x = np.array([1, 2, 3], dtype=np.dtype('<i4'))
+        assert_equal(
+            sha256(x).hexdigest(),
+            '4636993d3e1da4e9d6b8f87b79e8f7c6d018580d52661950eabc3845c5897a4d'
+        )
+
+    def test_0d_string_scalar(self):
+        # Bug #1436; the following should succeed
+        np.asarray('x', '>c')
+
+    def test_log1p_compiler_shenanigans(self):
+        # Check if log1p is behaving on 32 bit intel systems.
+        assert_(np.isfinite(np.log1p(np.exp2(-53))))
+
+    def test_fromiter_comparison(self):
+        a = np.fromiter(list(range(10)), dtype='b')
+        b = np.fromiter(list(range(10)), dtype='B')
+        assert_(np.all(a == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])))
+        assert_(np.all(b == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])))
+
+    def test_fromstring_crash(self):
+        with assert_raises(ValueError):
+            np.fromstring(b'aa, aa, 1.0', sep=',')
+
+    def test_ticket_1539(self):
+        dtypes = [x for x in np._core.sctypeDict.values()
+                  if (issubclass(x, np.number)
+                      and not issubclass(x, np.timedelta64))]
+        a = np.array([], np.bool)  # not x[0] because it is unordered
+        failures = []
+
+        for x in dtypes:
+            b = a.astype(x)
+            for y in dtypes:
+                c = a.astype(y)
+                try:
+                    d = np.dot(b, c)
+                except TypeError:
+                    failures.append((x, y))
+                else:
+                    if d != 0:
+                        failures.append((x, y))
+        if failures:
+            raise AssertionError(f"Failures: {failures!r}")
+
+    def test_ticket_1538(self):
+        x = np.finfo(np.float32)
+        for name in ('eps', 'epsneg', 'max', 'min', 'resolution', 'tiny'):
+            assert_equal(type(getattr(x, name)), np.float32,
+                         err_msg=name)
+
+    def test_ticket_1434(self):
+        # Check that the out= argument in var and std has an effect
+        data = np.array(((1, 2, 3), (4, 5, 6), (7, 8, 9)))
+        out = np.zeros((3,))
+
+        ret = data.var(axis=1, out=out)
+        assert_(ret is out)
+        assert_array_equal(ret, data.var(axis=1))
+
+        ret = data.std(axis=1, out=out)
+        assert_(ret is out)
+        assert_array_equal(ret, data.std(axis=1))
+
+    def test_complex_nan_maximum(self):
+        cnan = complex(0, np.nan)
+        assert_equal(np.maximum(1, cnan), cnan)
+
+    def test_subclass_int_tuple_assignment(self):
+        # ticket #1563
+        class Subclass(np.ndarray):
+            def __new__(cls, i):
+                return np.ones((i,)).view(cls)
+
+        x = Subclass(5)
+        x[(0,)] = 2  # shouldn't raise an exception
+        assert_equal(x[0], 2)
+
+    def test_ufunc_no_unnecessary_views(self):
+        # ticket #1548
+        class Subclass(np.ndarray):
+            pass
+        x = np.array([1, 2, 3]).view(Subclass)
+        y = np.add(x, x, x)
+        assert_equal(id(x), id(y))
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_take_refcount(self):
+        # ticket #939
+        a = np.arange(16, dtype=float)
+        a.shape = (4, 4)
+        lut = np.ones((5 + 3, 4), float)
+        rgba = np.empty(shape=a.shape + (4,), dtype=lut.dtype)
+        c1 = sys.getrefcount(rgba)
+        try:
+            lut.take(a, axis=0, mode='clip', out=rgba)
+        except TypeError:
+            pass
+        c2 = sys.getrefcount(rgba)
+        assert_equal(c1, c2)
+
+    def test_fromfile_tofile_seeks(self):
+        # tofile/fromfile used to get (#1610) the Python file handle out of sync
+        with tempfile.NamedTemporaryFile() as f:
+            f.write(np.arange(255, dtype='u1').tobytes())
+
+            f.seek(20)
+            ret = np.fromfile(f, count=4, dtype='u1')
+            assert_equal(ret, np.array([20, 21, 22, 23], dtype='u1'))
+            assert_equal(f.tell(), 24)
+
+            f.seek(40)
+            np.array([1, 2, 3], dtype='u1').tofile(f)
+            assert_equal(f.tell(), 43)
+
+            f.seek(40)
+            data = f.read(3)
+            assert_equal(data, b"\x01\x02\x03")
+
+            f.seek(80)
+            f.read(4)
+            data = np.fromfile(f, dtype='u1', count=4)
+            assert_equal(data, np.array([84, 85, 86, 87], dtype='u1'))
+
+    def test_complex_scalar_warning(self):
+        for tp in [np.csingle, np.cdouble, np.clongdouble]:
+            x = tp(1 + 2j)
+            pytest.warns(ComplexWarning, float, x)
+            with warnings.catch_warnings():
+                warnings.simplefilter('ignore', ComplexWarning)
+                assert_equal(float(x), float(x.real))
+
+    def test_complex_scalar_complex_cast(self):
+        for tp in [np.csingle, np.cdouble, np.clongdouble]:
+            x = tp(1 + 2j)
+            assert_equal(complex(x), 1 + 2j)
+
+    def test_complex_boolean_cast(self):
+        # Ticket #2218
+        for tp in [np.csingle, np.cdouble, np.clongdouble]:
+            x = np.array([0, 0 + 0.5j, 0.5 + 0j], dtype=tp)
+            assert_equal(x.astype(bool), np.array([0, 1, 1], dtype=bool))
+            assert_(np.any(x))
+            assert_(np.all(x[1:]))
+
+    def test_uint_int_conversion(self):
+        x = 2**64 - 1
+        assert_equal(int(np.uint64(x)), x)
+
+    def test_duplicate_field_names_assign(self):
+        ra = np.fromiter(((i * 3, i * 2) for i in range(10)), dtype='i8,f8')
+        ra.dtype.names = ('f1', 'f2')
+        repr(ra)  # should not cause a segmentation fault
+        assert_raises(ValueError, setattr, ra.dtype, 'names', ('f1', 'f1'))
+
+    def test_eq_string_and_object_array(self):
+        # From e-mail thread "__eq__ with str and object" (Keith Goodman)
+        a1 = np.array(['a', 'b'], dtype=object)
+        a2 = np.array(['a', 'c'])
+        assert_array_equal(a1 == a2, [True, False])
+        assert_array_equal(a2 == a1, [True, False])
+
+    def test_nonzero_byteswap(self):
+        a = np.array([0x80000000, 0x00000080, 0], dtype=np.uint32)
+        a = a.view(np.float32)
+        assert_equal(a.nonzero()[0], [1])
+        a = a.byteswap()
+        a = a.view(a.dtype.newbyteorder())
+        assert_equal(a.nonzero()[0], [1])  # [0] if nonzero() ignores swap
+
+    def test_empty_mul(self):
+        a = np.array([1.])
+        a[1:1] *= 2
+        assert_equal(a, [1.])
+
+    def test_array_side_effect(self):
+        # The second use of itemsize was throwing an exception because in
+        # ctors.c, discover_itemsize was calling PyObject_Length without
+        # checking the return code.  This failed to get the length of the
+        # number 2, and the exception hung around until something checked
+        # PyErr_Occurred() and returned an error.
+        assert_equal(np.dtype('S10').itemsize, 10)
+        np.array([['abc', 2], ['long   ', '0123456789']], dtype=np.bytes_)
+        assert_equal(np.dtype('S10').itemsize, 10)
+
+    def test_any_float(self):
+        # all and any for floats
+        a = np.array([0.1, 0.9])
+        assert_(np.any(a))
+        assert_(np.all(a))
+
+    def test_large_float_sum(self):
+        a = np.arange(10000, dtype='f')
+        assert_equal(a.sum(dtype='d'), a.astype('d').sum())
+
+    def test_ufunc_casting_out(self):
+        a = np.array(1.0, dtype=np.float32)
+        b = np.array(1.0, dtype=np.float64)
+        c = np.array(1.0, dtype=np.float32)
+        np.add(a, b, out=c)
+        assert_equal(c, 2.0)
+
+    def test_array_scalar_contiguous(self):
+        # Array scalars are both C and Fortran contiguous
+        assert_(np.array(1.0).flags.c_contiguous)
+        assert_(np.array(1.0).flags.f_contiguous)
+        assert_(np.array(np.float32(1.0)).flags.c_contiguous)
+        assert_(np.array(np.float32(1.0)).flags.f_contiguous)
+
+    def test_squeeze_contiguous(self):
+        # Similar to GitHub issue #387
+        a = np.zeros((1, 2)).squeeze()
+        b = np.zeros((2, 2, 2), order='F')[:, :, ::2].squeeze()
+        assert_(a.flags.c_contiguous)
+        assert_(a.flags.f_contiguous)
+        assert_(b.flags.f_contiguous)
+
+    def test_squeeze_axis_handling(self):
+        # Issue #10779
+        # Ensure proper handling of objects
+        # that don't support axis specification
+        # when squeezing
+
+        class OldSqueeze(np.ndarray):
+
+            def __new__(cls,
+                        input_array):
+                obj = np.asarray(input_array).view(cls)
+                return obj
+
+            # it is perfectly reasonable that prior
+            # to numpy version 1.7.0 a subclass of ndarray
+            # might have been created that did not expect
+            # squeeze to have an axis argument
+            # NOTE: this example is somewhat artificial;
+            # it is designed to simulate an old API
+            # expectation to guard against regression
+            def squeeze(self):
+                return super().squeeze()
+
+        oldsqueeze = OldSqueeze(np.array([[1], [2], [3]]))
+
+        # if no axis argument is specified the old API
+        # expectation should give the correct result
+        assert_equal(np.squeeze(oldsqueeze),
+                     np.array([1, 2, 3]))
+
+        # likewise, axis=None should work perfectly well
+        # with the old API expectation
+        assert_equal(np.squeeze(oldsqueeze, axis=None),
+                     np.array([1, 2, 3]))
+
+        # however, specification of any particular axis
+        # should raise a TypeError in the context of the
+        # old API specification, even when using a valid
+        # axis specification like 1 for this array
+        with assert_raises(TypeError):
+            # this would silently succeed for array
+            # subclasses / objects that did not support
+            # squeeze axis argument handling before fixing
+            # Issue #10779
+            np.squeeze(oldsqueeze, axis=1)
+
+        # check for the same behavior when using an invalid
+        # axis specification -- in this case axis=0 does not
+        # have size 1, but the priority should be to raise
+        # a TypeError for the axis argument and NOT a
+        # ValueError for squeezing a non-empty dimension
+        with assert_raises(TypeError):
+            np.squeeze(oldsqueeze, axis=0)
+
+        # the new API knows how to handle the axis
+        # argument and will return a ValueError if
+        # attempting to squeeze an axis that is not
+        # of length 1
+        with assert_raises(ValueError):
+            np.squeeze(np.array([[1], [2], [3]]), axis=0)
+
+    def test_reduce_contiguous(self):
+        # GitHub issue #387
+        a = np.add.reduce(np.zeros((2, 1, 2)), (0, 1))
+        b = np.add.reduce(np.zeros((2, 1, 2)), 1)
+        assert_(a.flags.c_contiguous)
+        assert_(a.flags.f_contiguous)
+        assert_(b.flags.c_contiguous)
+
+    @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking")
+    @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size")
+    def test_object_array_self_reference(self):
+        # Object arrays with references to themselves can cause problems
+        a = np.array(0, dtype=object)
+        a[()] = a
+        assert_raises(RecursionError, int, a)
+        assert_raises(RecursionError, float, a)
+        a[()] = None
+
+    @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking")
+    @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size")
+    def test_object_array_circular_reference(self):
+        # Test the same for a circular reference.
+        a = np.array(0, dtype=object)
+        b = np.array(0, dtype=object)
+        a[()] = b
+        b[()] = a
+        assert_raises(RecursionError, int, a)
+        # NumPy has no tp_traverse currently, so circular references
+        # cannot be detected. So resolve it:
+        a[()] = None
+
+        # This was causing a to become like the above
+        a = np.array(0, dtype=object)
+        a[...] += 1
+        assert_equal(a, 1)
+
+    def test_object_array_nested(self):
+        # but is fine with a reference to a different array
+        a = np.array(0, dtype=object)
+        b = np.array(0, dtype=object)
+        a[()] = b
+        assert_equal(int(a), int(0))  # noqa: UP018
+        assert_equal(float(a), float(0))
+
+    def test_object_array_self_copy(self):
+        # An object array being copied into itself DECREF'ed before INCREF'ing
+        # causing segmentation faults (gh-3787)
+        a = np.array(object(), dtype=object)
+        np.copyto(a, a)
+        if HAS_REFCOUNT:
+            assert_(sys.getrefcount(a[()]) == 2)
+        a[()].__class__  # will segfault if object was deleted
+
+    def test_zerosize_accumulate(self):
+        "Ticket #1733"
+        x = np.array([[42, 0]], dtype=np.uint32)
+        assert_equal(np.add.accumulate(x[:-1, 0]), [])
+
+    def test_objectarray_setfield(self):
+        # Setfield should not overwrite Object fields with non-Object data
+        x = np.array([1, 2, 3], dtype=object)
+        assert_raises(TypeError, x.setfield, 4, np.int32, 0)
+
+    def test_setting_rank0_string(self):
+        "Ticket #1736"
+        s1 = b"hello1"
+        s2 = b"hello2"
+        a = np.zeros((), dtype="S10")
+        a[()] = s1
+        assert_equal(a, np.array(s1))
+        a[()] = np.array(s2)
+        assert_equal(a, np.array(s2))
+
+        a = np.zeros((), dtype='f4')
+        a[()] = 3
+        assert_equal(a, np.array(3))
+        a[()] = np.array(4)
+        assert_equal(a, np.array(4))
+
+    def test_string_astype(self):
+        "Ticket #1748"
+        s1 = b'black'
+        s2 = b'white'
+        s3 = b'other'
+        a = np.array([[s1], [s2], [s3]])
+        assert_equal(a.dtype, np.dtype('S5'))
+        b = a.astype(np.dtype('S0'))
+        assert_equal(b.dtype, np.dtype('S5'))
+
+    def test_ticket_1756(self):
+        # Ticket #1756
+        s = b'0123456789abcdef'
+        a = np.array([s] * 5)
+        for i in range(1, 17):
+            a1 = np.array(a, "|S%d" % i)
+            a2 = np.array([s[:i]] * 5)
+            assert_equal(a1, a2)
+
+    def test_fields_strides(self):
+        "gh-2355"
+        r = np.frombuffer(b'abcdefghijklmnop' * 4 * 3, dtype='i4,(2,3)u2')
+        assert_equal(r[0:3:2]['f1'], r['f1'][0:3:2])
+        assert_equal(r[0:3:2]['f1'][0], r[0:3:2][0]['f1'])
+        assert_equal(r[0:3:2]['f1'][0][()], r[0:3:2][0]['f1'][()])
+        assert_equal(r[0:3:2]['f1'][0].strides, r[0:3:2][0]['f1'].strides)
+
+    def test_alignment_update(self):
+        # Check that alignment flag is updated on stride setting
+        a = np.arange(10)
+        assert_(a.flags.aligned)
+        with pytest.warns(DeprecationWarning):
+            a.strides = 3
+        assert_(not a.flags.aligned)
+
+    def test_ticket_1770(self):
+        "Should not segfault on python 3k"
+        import numpy as np
+        try:
+            a = np.zeros((1,), dtype=[('f1', 'f')])
+            a['f1'] = 1
+            a['f2'] = 1
+        except ValueError:
+            pass
+        except Exception:
+            raise AssertionError
+
+    def test_ticket_1608(self):
+        "x.flat shouldn't modify data"
+        x = np.array([[1, 2], [3, 4]]).T
+        np.array(x.flat)
+        assert_equal(x, [[1, 3], [2, 4]])
+
+    def test_pickle_string_overwrite(self):
+        import re
+
+        data = np.array([1], dtype='b')
+        blob = pickle.dumps(data, protocol=1)
+        data = pickle.loads(blob)
+
+        # Check that loads does not clobber interned strings
+        s = re.sub(r"a(.)", "\x01\\1", "a_")
+        assert_equal(s[0], "\x01")
+        data[0] = 0x6a
+        s = re.sub(r"a(.)", "\x01\\1", "a_")
+        assert_equal(s[0], "\x01")
+
+    def test_pickle_bytes_overwrite(self):
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            data = np.array([1], dtype='b')
+            data = pickle.loads(pickle.dumps(data, protocol=proto))
+            data[0] = 0x7d
+            bytestring = "\x01  ".encode('ascii')
+            assert_equal(bytestring[0:1], '\x01'.encode('ascii'))
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_pickle_py2_array_latin1_hack(self):
+        # Check that unpickling hacks in Py3 that support
+        # encoding='latin1' work correctly.
+
+        # Python2 output for pickle.dumps(numpy.array([129], dtype='b'))
+        data = b"cnumpy.core.multiarray\n_reconstruct\np0\n(cnumpy\nndarray\np1\n(I0\ntp2\nS'b'\np3\ntp4\nRp5\n(I1\n(I1\ntp6\ncnumpy\ndtype\np7\n(S'i1'\np8\nI0\nI1\ntp9\nRp10\n(I3\nS'|'\np11\nNNNI-1\nI-1\nI0\ntp12\nbI00\nS'\\x81'\np13\ntp14\nb."
+        # This should work:
+        result = pickle.loads(data, encoding='latin1')
+        assert_array_equal(result, np.array([129]).astype('b'))
+        # Should not segfault:
+        assert_raises(Exception, pickle.loads, data, encoding='koi8-r')
+
+    @pytest.mark.filterwarnings(
+        "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+    def test_pickle_py2_scalar_latin1_hack(self):
+        # Check that scalar unpickling hack in Py3 that supports
+        # encoding='latin1' work correctly.
+
+        # Python2 output for pickle.dumps(...)
+        datas = [
+            # (original, python2_pickle, koi8r_validity)
+            (np.str_('\u6bd2'),
+             b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'U1'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'<'\np5\nNNNI4\nI4\nI0\ntp6\nbS'\\xd2k\\x00\\x00'\np7\ntp8\nRp9\n.",
+             'invalid'),
+
+            (np.float64(9e123),
+             b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'f8'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'<'\np5\nNNNI-1\nI-1\nI0\ntp6\nbS'O\\x81\\xb7Z\\xaa:\\xabY'\np7\ntp8\nRp9\n.",
+             'invalid'),
+
+            # different 8-bit code point in KOI8-R vs latin1
+            (np.bytes_(b'\x9c'),
+             b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'S1'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'|'\np5\nNNNI1\nI1\nI0\ntp6\nbS'\\x9c'\np7\ntp8\nRp9\n.",
+             'different'),
+        ]
+        for original, data, koi8r_validity in datas:
+            result = pickle.loads(data, encoding='latin1')
+            assert_equal(result, original)
+
+            # Decoding under non-latin1 encoding (e.g.) KOI8-R can
+            # produce bad results, but should not segfault.
+            if koi8r_validity == 'different':
+                # Unicode code points happen to lie within latin1,
+                # but are different in koi8-r, resulting to silent
+                # bogus results
+                result = pickle.loads(data, encoding='koi8-r')
+                assert_(result != original)
+            elif koi8r_validity == 'invalid':
+                # Unicode code points outside latin1, so results
+                # to an encoding exception
+                assert_raises(
+                    ValueError, pickle.loads, data, encoding='koi8-r'
+                )
+            else:
+                raise ValueError(koi8r_validity)
+
+    def test_structured_type_to_object(self):
+        a_rec = np.array([(0, 1), (3, 2)], dtype='i4,i8')
+        a_obj = np.empty((2,), dtype=object)
+        a_obj[0] = (0, 1)
+        a_obj[1] = (3, 2)
+        # astype records -> object
+        assert_equal(a_rec.astype(object), a_obj)
+        # '=' records -> object
+        b = np.empty_like(a_obj)
+        b[...] = a_rec
+        assert_equal(b, a_obj)
+        # '=' object -> records
+        b = np.empty_like(a_rec)
+        b[...] = a_obj
+        assert_equal(b, a_rec)
+
+    def test_assign_obj_listoflists(self):
+        # Ticket # 1870
+        # The inner list should get assigned to the object elements
+        a = np.zeros(4, dtype=object)
+        b = a.copy()
+        a[0] = [1]
+        a[1] = [2]
+        a[2] = [3]
+        a[3] = [4]
+        b[...] = [[1], [2], [3], [4]]
+        assert_equal(a, b)
+        # The first dimension should get broadcast
+        a = np.zeros((2, 2), dtype=object)
+        a[...] = [[1, 2]]
+        assert_equal(a, [[1, 2], [1, 2]])
+
+    @pytest.mark.slow_pypy
+    def test_memoryleak(self):
+        # Ticket #1917 - ensure that array data doesn't leak
+        for i in range(1000):
+            # 100MB times 1000 would give 100GB of memory usage if it leaks
+            a = np.empty((100000000,), dtype='i1')
+            del a
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_ufunc_reduce_memoryleak(self):
+        a = np.arange(6)
+        acnt = sys.getrefcount(a)
+        np.add.reduce(a)
+        assert_equal(sys.getrefcount(a), acnt)
+
+    def test_search_sorted_invalid_arguments(self):
+        # Ticket #2021, should not segfault.
+        x = np.arange(0, 4, dtype='datetime64[D]')
+        assert_raises(TypeError, x.searchsorted, 1)
+
+    def test_string_truncation(self):
+        # Ticket #1990 - Data can be truncated in creation of an array from a
+        # mixed sequence of numeric values and strings (gh-2583)
+        for val in [True, 1234, 123.4, complex(1, 234)]:
+            for tostr, dtype in [(asunicode, "U"), (asbytes, "S")]:
+                b = np.array([val, tostr('xx')], dtype=dtype)
+                assert_equal(tostr(b[0]), tostr(val))
+                b = np.array([tostr('xx'), val], dtype=dtype)
+                assert_equal(tostr(b[1]), tostr(val))
+
+                # test also with longer strings
+                b = np.array([val, tostr('xxxxxxxxxx')], dtype=dtype)
+                assert_equal(tostr(b[0]), tostr(val))
+                b = np.array([tostr('xxxxxxxxxx'), val], dtype=dtype)
+                assert_equal(tostr(b[1]), tostr(val))
+
+    def test_string_truncation_ucs2(self):
+        # Ticket #2081. Python compiled with two byte unicode
+        # can lead to truncation if itemsize is not properly
+        # adjusted for NumPy's four byte unicode.
+        a = np.array(['abcd'])
+        assert_equal(a.dtype.itemsize, 16)
+
+    def test_unique_stable(self):
+        # Ticket #2063 must always choose stable sort for argsort to
+        # get consistent results
+        v = np.array(([0] * 5 + [1] * 6 + [2] * 6) * 4)
+        res = np.unique(v, return_index=True)
+        tgt = (np.array([0, 1, 2]), np.array([0, 5, 11]))
+        assert_equal(res, tgt)
+
+    def test_unicode_alloc_dealloc_match(self):
+        # Ticket #1578, the mismatch only showed up when running
+        # python-debug for python versions >= 2.7, and then as
+        # a core dump and error message.
+        a = np.array(['abc'], dtype=np.str_)[0]
+        del a
+
+    def test_refcount_error_in_clip(self):
+        # Ticket #1588
+        a = np.zeros((2,), dtype='>i2').clip(min=0)
+        x = a + a
+        # This used to segfault:
+        y = str(x)
+        # Check the final string:
+        assert_(y == "[0 0]")
+
+    def test_searchsorted_wrong_dtype(self):
+        # Ticket #2189, it used to segfault, so we check that it raises the
+        # proper exception.
+        a = np.array([('a', 1)], dtype='S1, int')
+        assert_raises(TypeError, np.searchsorted, a, 1.2)
+        # Ticket #2066, similar problem:
+        dtype = np.rec.format_parser(['i4', 'i4'], [], [])
+        a = np.recarray((2,), dtype)
+        a[...] = [(1, 2), (3, 4)]
+        assert_raises(TypeError, np.searchsorted, a, 1)
+
+    def test_complex64_alignment(self):
+        # Issue gh-2668 (trac 2076), segfault on sparc due to misalignment
+        dtt = np.complex64
+        arr = np.arange(10, dtype=dtt)
+        # 2D array
+        arr2 = np.reshape(arr, (2, 5))
+        # Fortran write followed by (C or F) read caused bus error
+        data_str = arr2.tobytes('F')
+        data_back = np.ndarray(arr2.shape,
+                              arr2.dtype,
+                              buffer=data_str,
+                              order='F')
+        assert_array_equal(arr2, data_back)
+
+    def test_structured_count_nonzero(self):
+        arr = np.array([0, 1]).astype('i4, 2i4')[:1]
+        count = np.count_nonzero(arr)
+        assert_equal(count, 0)
+
+    def test_copymodule_preserves_f_contiguity(self):
+        a = np.empty((2, 2), order='F')
+        b = copy.copy(a)
+        c = copy.deepcopy(a)
+        assert_(b.flags.fortran)
+        assert_(b.flags.f_contiguous)
+        assert_(c.flags.fortran)
+        assert_(c.flags.f_contiguous)
+
+    def test_fortran_order_buffer(self):
+        import numpy as np
+        a = np.array([['Hello', 'Foob']], dtype='U5', order='F')
+        arr = np.ndarray(shape=[1, 2, 5], dtype='U1', buffer=a)
+        arr2 = np.array([[['H', 'e', 'l', 'l', 'o'],
+                          ['F', 'o', 'o', 'b', '']]])
+        assert_array_equal(arr, arr2)
+
+    def test_assign_from_sequence_error(self):
+        # Ticket #4024.
+        arr = np.array([1, 2, 3])
+        assert_raises(ValueError, arr.__setitem__, slice(None), [9, 9])
+        arr.__setitem__(slice(None), [9])
+        assert_equal(arr, [9, 9, 9])
+
+    def test_format_on_flex_array_element(self):
+        # Ticket #4369.
+        dt = np.dtype([('date', '<M8[D]'), ('val', '<f8')])
+        arr = np.array([('2000-01-01', 1)], dt)
+        formatted = f'{arr[0]}'
+        assert_equal(formatted, str(arr[0]))
+
+    def test_deepcopy_on_0d_array(self):
+        # Ticket #3311.
+        arr = np.array(3)
+        arr_cp = copy.deepcopy(arr)
+
+        assert_equal(arr, arr_cp)
+        assert_equal(arr.shape, arr_cp.shape)
+        assert_equal(int(arr), int(arr_cp))
+        assert_(arr is not arr_cp)
+        assert_(isinstance(arr_cp, type(arr)))
+
+    def test_deepcopy_F_order_object_array(self):
+        # Ticket #6456.
+        a = {'a': 1}
+        b = {'b': 2}
+        arr = np.array([[a, b], [a, b]], order='F')
+        arr_cp = copy.deepcopy(arr)
+
+        assert_equal(arr, arr_cp)
+        assert_(arr is not arr_cp)
+        # Ensure that we have actually copied the item.
+        assert_(arr[0, 1] is not arr_cp[1, 1])
+        # Ensure we are allowed to have references to the same object.
+        assert_(arr[0, 1] is arr[1, 1])
+        # Check the references hold for the copied objects.
+        assert_(arr_cp[0, 1] is arr_cp[1, 1])
+
+    def test_deepcopy_empty_object_array(self):
+        # Ticket #8536.
+        # Deepcopy should succeed
+        a = np.array([], dtype=object)
+        b = copy.deepcopy(a)
+        assert_(a.shape == b.shape)
+
+    def test_bool_subscript_crash(self):
+        # gh-4494
+        c = np.rec.array([(1, 2, 3), (4, 5, 6)])
+        masked = c[np.array([True, False])]
+        base = masked.base
+        del masked, c
+        base.dtype
+
+    def test_richcompare_crash(self):
+        # gh-4613
+        import operator as op
+
+        # dummy class where __array__ throws exception
+        class Foo:
+            __array_priority__ = 1002
+
+            def __array__(self, *args, **kwargs):
+                raise Exception
+
+        rhs = Foo()
+        lhs = np.array(1)
+        for f in [op.lt, op.le, op.gt, op.ge]:
+            assert_raises(TypeError, f, lhs, rhs)
+        assert_(not op.eq(lhs, rhs))
+        assert_(op.ne(lhs, rhs))
+
+    def test_richcompare_scalar_and_subclass(self):
+        # gh-4709
+        class Foo(np.ndarray):
+            def __eq__(self, other):
+                return "OK"
+
+        x = np.array([1, 2, 3]).view(Foo)
+        assert_equal(10 == x, "OK")
+        assert_equal(np.int32(10) == x, "OK")
+        assert_equal(np.array([10]) == x, "OK")
+
+    def test_pickle_empty_string(self):
+        # gh-3926
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            test_string = np.bytes_('')
+            assert_equal(pickle.loads(
+                pickle.dumps(test_string, protocol=proto)), test_string)
+
+    def test_frompyfunc_many_args(self):
+        # gh-5672
+
+        def passer(*args):
+            pass
+
+        assert_raises(ValueError, np.frompyfunc, passer, 64, 1)
+
+    def test_repeat_broadcasting(self):
+        # gh-5743
+        a = np.arange(60).reshape(3, 4, 5)
+        for axis in chain(range(-a.ndim, a.ndim), [None]):
+            assert_equal(a.repeat(2, axis=axis), a.repeat([2], axis=axis))
+
+    def test_frompyfunc_nout_0(self):
+        # gh-2014
+
+        def f(x):
+            x[0], x[-1] = x[-1], x[0]
+
+        uf = np.frompyfunc(f, 1, 0)
+        a = np.array([[1, 2, 3], [4, 5], [6, 7, 8, 9]], dtype=object)
+        assert_equal(uf(a), ())
+        expected = np.array([[3, 2, 1], [5, 4], [9, 7, 8, 6]], dtype=object)
+        assert_array_equal(a, expected)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_leak_in_structured_dtype_comparison(self):
+        # gh-6250
+        recordtype = np.dtype([('a', np.float64),
+                               ('b', np.int32),
+                               ('d', (str, 5))])
+
+        # Simple case
+        a = np.zeros(2, dtype=recordtype)
+        for i in range(100):
+            a == a
+        assert_(sys.getrefcount(a) < 10)
+
+        # The case in the bug report.
+        before = sys.getrefcount(a)
+        u, v = a[0], a[1]
+        u == v
+        del u, v
+        gc.collect()
+        after = sys.getrefcount(a)
+        assert_equal(before, after)
+
+    def test_empty_percentile(self):
+        # gh-6530 / gh-6553
+        assert_array_equal(np.percentile(np.arange(10), []), np.array([]))
+
+    def test_void_compare_segfault(self):
+        # gh-6922. The following should not segfault
+        a = np.ones(3, dtype=[('object', 'O'), ('int', '<i2')])
+        a.sort()
+
+    def test_reshape_size_overflow(self):
+        # gh-7455
+        a = np.ones(20)[::2]
+        if IS_64BIT:
+            # 64 bit. The following are the prime factors of 2**63 + 5,
+            # plus a leading 2, so when multiplied together as int64,
+            # the result overflows to a total size of 10.
+            new_shape = (2, 13, 419, 691, 823, 2977518503)
+        else:
+            # 32 bit. The following are the prime factors of 2**31 + 5,
+            # plus a leading 2, so when multiplied together as int32,
+            # the result overflows to a total size of 10.
+            new_shape = (2, 7, 7, 43826197)
+        assert_raises(ValueError, a.reshape, new_shape)
+
+    @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+            reason="PyPy bug in error formatting")
+    def test_invalid_structured_dtypes(self):
+        # gh-2865
+        # mapping python objects to other dtypes
+        assert_raises(ValueError, np.dtype, ('O', [('name', 'i8')]))
+        assert_raises(ValueError, np.dtype, ('i8', [('name', 'O')]))
+        assert_raises(ValueError, np.dtype,
+                      ('i8', [('name', [('name', 'O')])]))
+        assert_raises(ValueError, np.dtype, ([('a', 'i4'), ('b', 'i4')], 'O'))
+        assert_raises(ValueError, np.dtype, ('i8', 'O'))
+        # wrong number/type of tuple elements in dict
+        assert_raises(ValueError, np.dtype,
+                      ('i', {'name': ('i', 0, 'title', 'oops')}))
+        assert_raises(ValueError, np.dtype,
+                      ('i', {'name': ('i', 'wrongtype', 'title')}))
+        # disallowed as of 1.13
+        assert_raises(ValueError, np.dtype,
+                      ([('a', 'O'), ('b', 'O')], [('c', 'O'), ('d', 'O')]))
+        # allowed as a special case due to existing use, see gh-2798
+        a = np.ones(1, dtype=('O', [('name', 'O')]))
+        assert_equal(a[0], 1)
+        # In particular, the above union dtype (and union dtypes in general)
+        # should mainly behave like the main (object) dtype:
+        assert a[0] is a.item()
+        assert type(a[0]) is int
+
+    def test_correct_hash_dict(self):
+        # gh-8887 - __hash__ would be None despite tp_hash being set
+        all_types = set(np._core.sctypeDict.values()) - {np.void}
+        for t in all_types:
+            val = t()
+
+            try:
+                hash(val)
+            except TypeError:
+                assert_(t.__hash__ is None)
+            except ValueError:
+                assert_(t is np.timedelta64)
+                assert_(t.__hash__ is not None)
+            else:
+                assert_(t.__hash__ is not None)
+
+    def test_scalar_copy(self):
+        scalar_types = set(np._core.sctypeDict.values())
+        values = {
+            np.void: b"a",
+            np.bytes_: b"a",
+            np.str_: "a",
+            np.datetime64: "2017-08-25",
+        }
+        for sctype in scalar_types:
+            item = sctype(values.get(sctype, 1))
+            item2 = copy.copy(item)
+            assert_equal(item, item2)
+
+    def test_void_item_memview(self):
+        va = np.zeros(10, 'V4')
+        x = va[:1].item()
+        va[0] = b'\xff\xff\xff\xff'
+        del va
+        assert_equal(x, b'\x00\x00\x00\x00')
+
+    def test_void_getitem(self):
+        # Test fix for gh-11668.
+        assert_(np.array([b'a'], 'V1').astype('O') == b'a')
+        assert_(np.array([b'ab'], 'V2').astype('O') == b'ab')
+        assert_(np.array([b'abc'], 'V3').astype('O') == b'abc')
+        assert_(np.array([b'abcd'], 'V4').astype('O') == b'abcd')
+
+    def test_structarray_title(self):
+        # The following used to segfault on pypy, due to NPY_TITLE_KEY
+        # not working properly and resulting to double-decref of the
+        # structured array field items:
+        # See: https://bitbucket.org/pypy/pypy/issues/2789
+        for j in range(5):
+            structure = np.array([1], dtype=[(('x', 'X'), np.object_)])
+            structure[0]['x'] = np.array([2])
+            gc.collect()
+
+    def test_dtype_scalar_squeeze(self):
+        # gh-11384
+        values = {
+            'S': b"a",
+            'M': "2018-06-20",
+        }
+        for ch in np.typecodes['All']:
+            if ch in 'O':
+                continue
+            sctype = np.dtype(ch).type
+            scvalue = sctype(values.get(ch, 3))
+            for axis in [None, ()]:
+                squeezed = scvalue.squeeze(axis=axis)
+                assert_equal(squeezed, scvalue)
+                assert_equal(type(squeezed), type(scvalue))
+
+    def test_field_access_by_title(self):
+        # gh-11507
+        s = 'Some long field name'
+        if HAS_REFCOUNT:
+            base = sys.getrefcount(s)
+        t = np.dtype([((s, 'f1'), np.float64)])
+        data = np.zeros(10, t)
+        for i in range(10):
+            str(data[['f1']])
+            if HAS_REFCOUNT:
+                assert_(base <= sys.getrefcount(s))
+
+    @pytest.mark.parametrize('val', [
+        # arrays and scalars
+        np.ones((10, 10), dtype='int32'),
+        np.uint64(10),
+        ])
+    @pytest.mark.parametrize('protocol',
+        range(2, pickle.HIGHEST_PROTOCOL + 1)
+        )
+    def test_pickle_module(self, protocol, val):
+        # gh-12837
+        s = pickle.dumps(val, protocol)
+        assert b'_multiarray_umath' not in s
+        if protocol == 5 and len(val.shape) > 0:
+            # unpickling ndarray goes through _frombuffer for protocol 5
+            assert b'numpy._core.numeric' in s
+        else:
+            assert b'numpy._core.multiarray' in s
+
+    def test_object_casting_errors(self):
+        # gh-11993 update to ValueError (see gh-16909), since strings can in
+        # principle be converted to complex, but this string cannot.
+        arr = np.array(['AAAAA', 18465886.0, 18465886.0], dtype=object)
+        assert_raises(ValueError, arr.astype, 'c8')
+
+    def test_eff1d_casting(self):
+        # gh-12711
+        x = np.array([1, 2, 4, 7, 0], dtype=np.int16)
+        res = np.ediff1d(x, to_begin=-99, to_end=np.array([88, 99]))
+        assert_equal(res, [-99, 1, 2, 3, -7, 88, 99])
+
+        # The use of safe casting means, that 1<<20 is cast unsafely, an
+        # error may be better, but currently there is no mechanism for it.
+        res = np.ediff1d(x, to_begin=(1 << 20), to_end=(1 << 20))
+        assert_equal(res, [0, 1, 2, 3, -7, 0])
+
+    def test_pickle_datetime64_array(self):
+        # gh-12745 (would fail with pickle5 installed)
+        d = np.datetime64('2015-07-04 12:59:59.50', 'ns')
+        arr = np.array([d])
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            dumped = pickle.dumps(arr, protocol=proto)
+            assert_equal(pickle.loads(dumped), arr)
+
+    def test_bad_array_interface(self):
+        class T:
+            __array_interface__ = {}
+
+        with assert_raises(ValueError):
+            np.array([T()])
+
+    def test_2d__array__shape(self):
+        class T:
+            def __array__(self, dtype=None, copy=None):
+                return np.ndarray(shape=(0, 0))
+
+            # Make sure __array__ is used instead of Sequence methods.
+            def __iter__(self):
+                return iter([])
+
+            def __getitem__(self, idx):
+                raise AssertionError("__getitem__ was called")
+
+            def __len__(self):
+                return 0
+
+        t = T()
+        # gh-13659, would raise in broadcasting [x=t for x in result]
+        arr = np.array([t])
+        assert arr.shape == (1, 0, 0)
+
+    @pytest.mark.skipif(sys.maxsize < 2 ** 31 + 1, reason='overflows 32-bit python')
+    def test_to_ctypes(self):
+        # gh-14214
+        arr = np.zeros((2 ** 31 + 1,), 'b')
+        assert arr.size * arr.itemsize > 2 ** 31
+        c_arr = np.ctypeslib.as_ctypes(arr)
+        assert_equal(c_arr._length_, arr.size)
+
+    def test_complex_conversion_error(self):
+        # gh-17068
+        with pytest.raises(TypeError, match=r"Unable to convert dtype.*"):
+            complex(np.array("now", np.datetime64))
+
+    def test__array_interface__descr(self):
+        # gh-17068
+        dt = np.dtype({'names': ['a', 'b'],
+                           'offsets': [0, 0],
+                           'formats': [np.int64, np.int64]})
+        descr = np.array((1, 1), dtype=dt).__array_interface__['descr']
+        assert descr == [('', '|V8')]  # instead of [(b'', '|V8')]
+
+    @pytest.mark.skipif(sys.maxsize < 2 ** 31 + 1, reason='overflows 32-bit python')
+    @requires_memory(free_bytes=9e9)
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_dot_big_stride(self):
+        # gh-17111
+        # blas stride = stride//itemsize > int32 max
+        int32_max = np.iinfo(np.int32).max
+        n = int32_max + 3
+        a = np.empty([n], dtype=np.float32)
+        b = a[::n - 1]
+        b[...] = 1
+        assert b.strides[0] > int32_max * b.dtype.itemsize
+        assert np.dot(b, b) == 2.0
+
+    def test_frompyfunc_name(self):
+        # name conversion was failing for python 3 strings
+        # resulting in the default '?' name. Also test utf-8
+        # encoding using non-ascii name.
+        def cassé(x):
+            return x
+
+        f = np.frompyfunc(cassé, 1, 1)
+        assert str(f) == "<ufunc 'cassé (vectorized)'>"
+
+    @pytest.mark.parametrize("operation", [
+        'add', 'subtract', 'multiply', 'floor_divide',
+        'conjugate', 'fmod', 'square', 'reciprocal',
+        'power', 'absolute', 'negative', 'positive',
+        'greater', 'greater_equal', 'less',
+        'less_equal', 'equal', 'not_equal', 'logical_and',
+        'logical_not', 'logical_or', 'bitwise_and', 'bitwise_or',
+        'bitwise_xor', 'invert', 'left_shift', 'right_shift',
+        'gcd', 'lcm'
+        ]
+    )
+    @pytest.mark.parametrize("order", [
+        ('b->', 'B->'),
+        ('h->', 'H->'),
+        ('i->', 'I->'),
+        ('l->', 'L->'),
+        ('q->', 'Q->'),
+        ]
+    )
+    def test_ufunc_order(self, operation, order):
+        # gh-18075
+        # Ensure signed types before unsigned
+        def get_idx(string, str_lst):
+            for i, s in enumerate(str_lst):
+                if string in s:
+                    return i
+            raise ValueError(f"{string} not in list")
+        types = getattr(np, operation).types
+        assert get_idx(order[0], types) < get_idx(order[1], types), (
+                f"Unexpected types order of ufunc in {operation}"
+                f"for {order}. Possible fix: Use signed before unsigned"
+                "in generate_umath.py")
+
+    def test_nonbool_logical(self):
+        # gh-22845
+        # create two arrays with bit patterns that do not overlap.
+        # needs to be large enough to test both SIMD and scalar paths
+        size = 100
+        a = np.frombuffer(b'\x01' * size, dtype=np.bool)
+        b = np.frombuffer(b'\x80' * size, dtype=np.bool)
+        expected = np.ones(size, dtype=np.bool)
+        assert_array_equal(np.logical_and(a, b), expected)
+
+    @pytest.mark.skipif(IS_PYPY, reason="PyPy issue 2742")
+    def test_gh_23737(self):
+        with pytest.raises(TypeError, match="not an acceptable base type"):
+            class Y(np.flexible):
+                pass
+
+        with pytest.raises(TypeError, match="not an acceptable base type"):
+            class X(np.flexible, np.ma.core.MaskedArray):
+                pass
+
+    def test_load_ufunc_pickle(self):
+        # ufuncs are pickled with a semi-private path in
+        # numpy.core._multiarray_umath and must be loadable without warning
+        # despite np.core being deprecated.
+        test_data = b'\x80\x04\x95(\x00\x00\x00\x00\x00\x00\x00\x8c\x1cnumpy.core._multiarray_umath\x94\x8c\x03add\x94\x93\x94.'
+        result = pickle.loads(test_data, encoding='bytes')
+        assert result is np.add
+
+    def test__array_namespace__(self):
+        arr = np.arange(2)
+
+        xp = arr.__array_namespace__()
+        assert xp is np
+        xp = arr.__array_namespace__(api_version="2021.12")
+        assert xp is np
+        xp = arr.__array_namespace__(api_version="2022.12")
+        assert xp is np
+        xp = arr.__array_namespace__(api_version="2023.12")
+        assert xp is np
+        xp = arr.__array_namespace__(api_version="2024.12")
+        assert xp is np
+        xp = arr.__array_namespace__(api_version=None)
+        assert xp is np
+
+        with pytest.raises(
+            ValueError,
+            match="Version \"2025.12\" of the Array API Standard "
+                  "is not supported."
+        ):
+            arr.__array_namespace__(api_version="2025.12")
+
+        with pytest.raises(
+            ValueError,
+            match="Only None and strings are allowed as the Array API version"
+        ):
+            arr.__array_namespace__(api_version=2024)
+
+    def test_isin_refcnt_bug(self):
+        # gh-25295
+        for _ in range(1000):
+            np.isclose(np.int64(2), np.int64(2), atol=1e-15, rtol=1e-300)
+
+    def test_replace_regression(self):
+        # gh-25513 segfault
+        carr = np.char.chararray((2,), itemsize=25)
+        test_strings = [b'  4.52173913043478315E+00',
+                        b'  4.95652173913043548E+00']
+        carr[:] = test_strings
+        out = carr.replace(b"E", b"D")
+        expected = np.char.chararray((2,), itemsize=25)
+        expected[:] = [s.replace(b"E", b"D") for s in test_strings]
+        assert_array_equal(out, expected)
+
+    def test_logspace_base_does_not_determine_dtype(self):
+        # gh-24957 and cupy/cupy/issues/7946
+        start = np.array([0, 2], dtype=np.float16)
+        stop = np.array([2, 0], dtype=np.float16)
+        out = np.logspace(start, stop, num=5, axis=1, dtype=np.float32)
+        expected = np.array([[1., 3.1621094, 10., 31.625, 100.],
+                             [100., 31.625, 10., 3.1621094, 1.]],
+                            dtype=np.float32)
+        assert_almost_equal(out, expected)
+        # Check test fails if the calculation is done in float64, as happened
+        # before when a python float base incorrectly influenced the dtype.
+        out2 = np.logspace(start, stop, num=5, axis=1, dtype=np.float32,
+                           base=np.array([10.0]))
+        with pytest.raises(AssertionError, match="not almost equal"):
+            assert_almost_equal(out2, expected)
+
+    def test_vectorize_fixed_width_string(self):
+        arr = np.array(["SOme wOrd DŽ ß ᾛ ΣΣ ffi⁵Å Ç Ⅰ"]).astype(np.str_)
+        f = str.casefold
+        res = np.vectorize(f, otypes=[arr.dtype])(arr)
+        assert res.dtype == "U30"
+
+    def test_repeated_square_consistency(self):
+        # gh-26940
+        buf = np.array([-5.171866611150749e-07 + 2.5618634555957426e-07j,
+                        0, 0, 0, 0, 0])
+        # Test buffer with regular and reverse strides
+        for in_vec in [buf[:3], buf[:3][::-1]]:
+            expected_res = np.square(in_vec)
+            # Output vector immediately follows input vector
+            # to reproduce off-by-one in nomemoverlap check.
+            for res in [buf[3:], buf[3:][::-1]]:
+                res = buf[3:]
+                np.square(in_vec, out=res)
+                assert_equal(res, expected_res)
+
+    def test_sort_unique_crash(self):
+        # gh-27037
+        for _ in range(4):
+            vals = np.linspace(0, 1, num=128)
+            data = np.broadcast_to(vals, (128, 128, 128))
+            data = data.transpose(0, 2, 1).copy()
+            np.unique(data)
+
+    def test_sort_overlap(self):
+        # gh-27273
+        size = 100
+        inp = np.linspace(0, size, num=size, dtype=np.intc)
+        out = np.sort(inp)
+        assert_equal(inp, out)
+
+    def test_searchsorted_structured(self):
+        # gh-28190
+        x = np.array([(0, 1.)], dtype=[('time', '<i8'), ('value', '<f8')])
+        y = np.array((0, 0.), dtype=[('time', '<i8'), ('value', '<f8')])
+        x.searchsorted(y)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalar_ctors.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalar_ctors.py
new file mode 100644
index 0000000000000000000000000000000000000000..849d379081972772e645afd2764d34032e896464
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalar_ctors.py
@@ -0,0 +1,203 @@
+"""
+Test the scalar constructors, which also do type-coercion
+"""
+import pytest
+
+import numpy as np
+from numpy.testing import assert_almost_equal, assert_equal
+
+
+class TestFromString:
+    def test_floating(self):
+        # Ticket #640, floats from string
+        fsingle = np.single('1.234')
+        fdouble = np.double('1.234')
+        flongdouble = np.longdouble('1.234')
+        assert_almost_equal(fsingle, 1.234)
+        assert_almost_equal(fdouble, 1.234)
+        assert_almost_equal(flongdouble, 1.234)
+
+    def test_floating_overflow(self):
+        """ Strings containing an unrepresentable float overflow """
+        fhalf = np.half('1e10000')
+        assert_equal(fhalf, np.inf)
+        fsingle = np.single('1e10000')
+        assert_equal(fsingle, np.inf)
+        fdouble = np.double('1e10000')
+        assert_equal(fdouble, np.inf)
+        flongdouble = pytest.warns(RuntimeWarning, np.longdouble, '1e10000')
+        assert_equal(flongdouble, np.inf)
+
+        fhalf = np.half('-1e10000')
+        assert_equal(fhalf, -np.inf)
+        fsingle = np.single('-1e10000')
+        assert_equal(fsingle, -np.inf)
+        fdouble = np.double('-1e10000')
+        assert_equal(fdouble, -np.inf)
+        flongdouble = pytest.warns(RuntimeWarning, np.longdouble, '-1e10000')
+        assert_equal(flongdouble, -np.inf)
+
+
+class TestExtraArgs:
+    def test_superclass(self):
+        # try both positional and keyword arguments
+        s = np.str_(b'\\x61', encoding='unicode-escape')
+        assert s == 'a'
+        s = np.str_(b'\\x61', 'unicode-escape')
+        assert s == 'a'
+
+        # previously this would return '\\xx'
+        with pytest.raises(UnicodeDecodeError):
+            np.str_(b'\\xx', encoding='unicode-escape')
+        with pytest.raises(UnicodeDecodeError):
+            np.str_(b'\\xx', 'unicode-escape')
+
+        # superclass fails, but numpy succeeds
+        assert np.bytes_(-2) == b'-2'
+
+    def test_datetime(self):
+        dt = np.datetime64('2000-01', ('M', 2))
+        assert np.datetime_data(dt) == ('M', 2)
+
+        with pytest.raises(TypeError):
+            np.datetime64('2000', garbage=True)
+
+    def test_bool(self):
+        with pytest.raises(TypeError):
+            np.bool(False, garbage=True)
+
+    def test_void(self):
+        with pytest.raises(TypeError):
+            np.void(b'test', garbage=True)
+
+
+class TestFromInt:
+    def test_intp(self):
+        # Ticket #99
+        assert_equal(1024, np.intp(1024))
+
+    def test_uint64_from_negative(self):
+        with pytest.raises(OverflowError):
+            np.uint64(-2)
+
+
+int_types = [np.byte, np.short, np.intc, np.long, np.longlong]
+uint_types = [np.ubyte, np.ushort, np.uintc, np.ulong, np.ulonglong]
+float_types = [np.half, np.single, np.double, np.longdouble]
+cfloat_types = [np.csingle, np.cdouble, np.clongdouble]
+
+
+class TestArrayFromScalar:
+    """ gh-15467 and gh-19125 """
+
+    def _do_test(self, t1, t2, arg=2):
+        if arg is None:
+            x = t1()
+        elif isinstance(arg, tuple):
+            if t1 is np.clongdouble:
+                pytest.xfail("creating a clongdouble from real and "
+                             "imaginary parts isn't supported")
+            x = t1(*arg)
+        else:
+            x = t1(arg)
+        arr = np.array(x, dtype=t2)
+        # type should be preserved exactly
+        if t2 is None:
+            assert arr.dtype.type is t1
+        else:
+            assert arr.dtype.type is t2
+
+    @pytest.mark.parametrize('t1', int_types + uint_types)
+    @pytest.mark.parametrize('t2', int_types + uint_types + [None])
+    def test_integers(self, t1, t2):
+        return self._do_test(t1, t2)
+
+    @pytest.mark.parametrize('t1', float_types)
+    @pytest.mark.parametrize('t2', float_types + [None])
+    def test_reals(self, t1, t2):
+        return self._do_test(t1, t2)
+
+    @pytest.mark.parametrize('t1', cfloat_types)
+    @pytest.mark.parametrize('t2', cfloat_types + [None])
+    @pytest.mark.parametrize('arg', [2, 1 + 3j, (1, 2), None])
+    def test_complex(self, t1, t2, arg):
+        self._do_test(t1, t2, arg)
+
+    @pytest.mark.parametrize('t', cfloat_types)
+    def test_complex_errors(self, t):
+        with pytest.raises(TypeError):
+            t(1j, 1j)
+        with pytest.raises(TypeError):
+            t(1, None)
+        with pytest.raises(TypeError):
+            t(None, 1)
+
+
+@pytest.mark.parametrize("length",
+        [5, np.int8(5), np.array(5, dtype=np.uint16)])
+def test_void_via_length(length):
+    res = np.void(length)
+    assert type(res) is np.void
+    assert res.item() == b"\0" * 5
+    assert res.dtype == "V5"
+
+@pytest.mark.parametrize("bytes_",
+        [b"spam", np.array(567.)])
+def test_void_from_byteslike(bytes_):
+    res = np.void(bytes_)
+    expected = bytes(bytes_)
+    assert type(res) is np.void
+    assert res.item() == expected
+
+    # Passing dtype can extend it (this is how filling works)
+    res = np.void(bytes_, dtype="V100")
+    assert type(res) is np.void
+    assert res.item()[:len(expected)] == expected
+    assert res.item()[len(expected):] == b"\0" * (res.nbytes - len(expected))
+    # As well as shorten:
+    res = np.void(bytes_, dtype="V4")
+    assert type(res) is np.void
+    assert res.item() == expected[:4]
+
+def test_void_arraylike_trumps_byteslike():
+    # The memoryview is converted as an array-like of shape (18,)
+    # rather than a single bytes-like of that length.
+    m = memoryview(b"just one mintleaf?")
+    res = np.void(m)
+    assert type(res) is np.ndarray
+    assert res.dtype == "V1"
+    assert res.shape == (18,)
+
+def test_void_dtype_arg():
+    # Basic test for the dtype argument (positional and keyword)
+    res = np.void((1, 2), dtype="i,i")
+    assert res.item() == (1, 2)
+    res = np.void((2, 3), "i,i")
+    assert res.item() == (2, 3)
+
+@pytest.mark.parametrize("data",
+        [5, np.int8(5), np.array(5, dtype=np.uint16)])
+def test_void_from_integer_with_dtype(data):
+    # The "length" meaning is ignored, rather data is used:
+    res = np.void(data, dtype="i,i")
+    assert type(res) is np.void
+    assert res.dtype == "i,i"
+    assert res["f0"] == 5 and res["f1"] == 5
+
+def test_void_from_structure():
+    dtype = np.dtype([('s', [('f', 'f8'), ('u', 'U1')]), ('i', 'i2')])
+    data = np.array(((1., 'a'), 2), dtype=dtype)
+    res = np.void(data[()], dtype=dtype)
+    assert type(res) is np.void
+    assert res.dtype == dtype
+    assert res == data[()]
+
+def test_void_bad_dtype():
+    with pytest.raises(TypeError,
+            match="void: descr must be a `void.*int64"):
+        np.void(4, dtype="i8")
+
+    # Subarray dtype (with shape `(4,)` is rejected):
+    with pytest.raises(TypeError,
+            match=r"void: descr must be a `void.*\(4,\)"):
+        np.void(4, dtype="4i")
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalar_methods.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalar_methods.py
new file mode 100644
index 0000000000000000000000000000000000000000..fe3944e2b5d51b1368466b5684e83988852df07c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalar_methods.py
@@ -0,0 +1,328 @@
+"""
+Test the scalar constructors, which also do type-coercion
+"""
+import fractions
+import inspect
+import platform
+import sys
+import types
+from typing import Any, Literal
+
+import pytest
+
+import numpy as np
+from numpy._core import sctypes
+from numpy.testing import IS_PYPY, assert_equal, assert_raises
+
+
+class TestAsIntegerRatio:
+    # derived in part from the cpython test "test_floatasratio"
+
+    @pytest.mark.parametrize("ftype", [
+        np.half, np.single, np.double, np.longdouble])
+    @pytest.mark.parametrize("f, ratio", [
+        (0.875, (7, 8)),
+        (-0.875, (-7, 8)),
+        (0.0, (0, 1)),
+        (11.5, (23, 2)),
+        ])
+    def test_small(self, ftype, f, ratio):
+        assert_equal(ftype(f).as_integer_ratio(), ratio)
+
+    @pytest.mark.parametrize("ftype", [
+        np.half, np.single, np.double, np.longdouble])
+    def test_simple_fractions(self, ftype):
+        R = fractions.Fraction
+        assert_equal(R(0, 1),
+                     R(*ftype(0.0).as_integer_ratio()))
+        assert_equal(R(5, 2),
+                     R(*ftype(2.5).as_integer_ratio()))
+        assert_equal(R(1, 2),
+                     R(*ftype(0.5).as_integer_ratio()))
+        assert_equal(R(-2100, 1),
+                     R(*ftype(-2100.0).as_integer_ratio()))
+
+    @pytest.mark.parametrize("ftype", [
+        np.half, np.single, np.double, np.longdouble])
+    def test_errors(self, ftype):
+        assert_raises(OverflowError, ftype('inf').as_integer_ratio)
+        assert_raises(OverflowError, ftype('-inf').as_integer_ratio)
+        assert_raises(ValueError, ftype('nan').as_integer_ratio)
+
+    def test_against_known_values(self):
+        R = fractions.Fraction
+        assert_equal(R(1075, 512),
+                     R(*np.half(2.1).as_integer_ratio()))
+        assert_equal(R(-1075, 512),
+                     R(*np.half(-2.1).as_integer_ratio()))
+        assert_equal(R(4404019, 2097152),
+                     R(*np.single(2.1).as_integer_ratio()))
+        assert_equal(R(-4404019, 2097152),
+                     R(*np.single(-2.1).as_integer_ratio()))
+        assert_equal(R(4728779608739021, 2251799813685248),
+                     R(*np.double(2.1).as_integer_ratio()))
+        assert_equal(R(-4728779608739021, 2251799813685248),
+                     R(*np.double(-2.1).as_integer_ratio()))
+        # longdouble is platform dependent
+
+    @pytest.mark.parametrize("ftype, frac_vals, exp_vals", [
+        # dtype test cases generated using hypothesis
+        # first five generated cases per dtype
+        (np.half, [0.0, 0.01154830649280303, 0.31082276347447274,
+                   0.527350517124794, 0.8308562335072596],
+                  [0, 1, 0, -8, 12]),
+        (np.single, [0.0, 0.09248576989263226, 0.8160498218131407,
+                     0.17389442853722373, 0.7956044195067877],
+                    [0, 12, 10, 17, -26]),
+        (np.double, [0.0, 0.031066908499895136, 0.5214135908877832,
+                     0.45780736035689296, 0.5906586745934036],
+                    [0, -801, 51, 194, -653]),
+        pytest.param(
+            np.longdouble,
+            [0.0, 0.20492557202724854, 0.4277180662199366, 0.9888085019891495,
+             0.9620175814461964],
+            [0, -7400, 14266, -7822, -8721],
+            marks=[
+                pytest.mark.skipif(
+                    np.finfo(np.double) == np.finfo(np.longdouble),
+                    reason="long double is same as double"),
+                pytest.mark.skipif(
+                    platform.machine().startswith("ppc"),
+                    reason="IBM double double"),
+            ]
+        )
+    ])
+    def test_roundtrip(self, ftype, frac_vals, exp_vals):
+        for frac, exp in zip(frac_vals, exp_vals):
+            f = np.ldexp(ftype(frac), exp)
+            assert f.dtype == ftype
+            n, d = f.as_integer_ratio()
+
+            try:
+                nf = np.longdouble(n)
+                df = np.longdouble(d)
+                if not np.isfinite(df):
+                    raise OverflowError
+            except (OverflowError, RuntimeWarning):
+                # the values may not fit in any float type
+                pytest.skip("longdouble too small on this platform")
+
+            assert_equal(nf / df, f, f"{n}/{d}")
+
+
+class TestIsInteger:
+    @pytest.mark.parametrize("str_value", ["inf", "nan"])
+    @pytest.mark.parametrize("code", np.typecodes["Float"])
+    def test_special(self, code: str, str_value: str) -> None:
+        cls = np.dtype(code).type
+        value = cls(str_value)
+        assert not value.is_integer()
+
+    @pytest.mark.parametrize(
+        "code", np.typecodes["Float"] + np.typecodes["AllInteger"]
+    )
+    def test_true(self, code: str) -> None:
+        float_array = np.arange(-5, 5).astype(code)
+        for value in float_array:
+            assert value.is_integer()
+
+    @pytest.mark.parametrize("code", np.typecodes["Float"])
+    def test_false(self, code: str) -> None:
+        float_array = np.arange(-5, 5).astype(code)
+        float_array *= 1.1
+        for value in float_array:
+            if value == 0:
+                continue
+            assert not value.is_integer()
+
+
+class TestClassGetItem:
+    @pytest.mark.parametrize("cls", [
+        np.number,
+        np.integer,
+        np.inexact,
+        np.unsignedinteger,
+        np.signedinteger,
+        np.floating,
+    ])
+    def test_abc(self, cls: type[np.number]) -> None:
+        alias = cls[Any]
+        assert isinstance(alias, types.GenericAlias)
+        assert alias.__origin__ is cls
+
+    def test_abc_complexfloating(self) -> None:
+        alias = np.complexfloating[Any, Any]
+        assert isinstance(alias, types.GenericAlias)
+        assert alias.__origin__ is np.complexfloating
+
+    @pytest.mark.parametrize("arg_len", range(4))
+    def test_abc_complexfloating_subscript_tuple(self, arg_len: int) -> None:
+        arg_tup = (Any,) * arg_len
+        if arg_len in (1, 2):
+            assert np.complexfloating[arg_tup]
+        else:
+            match = f"Too {'few' if arg_len == 0 else 'many'} arguments"
+            with pytest.raises(TypeError, match=match):
+                np.complexfloating[arg_tup]
+
+    @pytest.mark.parametrize("cls", [np.generic, np.flexible, np.character])
+    def test_abc_non_numeric(self, cls: type[np.generic]) -> None:
+        with pytest.raises(TypeError):
+            cls[Any]
+
+    @pytest.mark.parametrize("code", np.typecodes["All"])
+    def test_concrete(self, code: str) -> None:
+        cls = np.dtype(code).type
+        if cls in {np.bool, np.datetime64}:
+            # these are intentionally subscriptable
+            assert cls[Any]
+        else:
+            with pytest.raises(TypeError):
+                cls[Any]
+
+    @pytest.mark.parametrize("arg_len", range(4))
+    def test_subscript_tuple(self, arg_len: int) -> None:
+        arg_tup = (Any,) * arg_len
+        if arg_len == 1:
+            assert np.number[arg_tup]
+        else:
+            with pytest.raises(TypeError):
+                np.number[arg_tup]
+
+    def test_subscript_scalar(self) -> None:
+        assert np.number[Any]
+
+    @pytest.mark.parametrize("subscript", [Literal[True], Literal[False]])
+    def test_subscript_bool(self, subscript: Literal[True, False]) -> None:
+        assert isinstance(np.bool[subscript], types.GenericAlias)
+
+
+class TestBitCount:
+    # derived in part from the cpython test "test_bit_count"
+
+    @pytest.mark.parametrize("itype", sctypes['int'] + sctypes['uint'])
+    def test_small(self, itype):
+        for a in range(max(np.iinfo(itype).min, 0), 128):
+            msg = f"Smoke test for {itype}({a}).bit_count()"
+            assert itype(a).bit_count() == a.bit_count(), msg
+
+    def test_bit_count(self):
+        for exp in [10, 17, 63]:
+            a = 2**exp
+            assert np.uint64(a).bit_count() == 1
+            assert np.uint64(a - 1).bit_count() == exp
+            assert np.uint64(a ^ 63).bit_count() == 7
+            assert np.uint64((a - 1) ^ 510).bit_count() == exp - 8
+
+
+class TestDevice:
+    """
+    Test scalar.device attribute and scalar.to_device() method.
+    """
+    scalars = [np.bool(True), np.int64(1), np.uint64(1), np.float64(1.0),
+               np.complex128(1 + 1j)]
+
+    @pytest.mark.parametrize("scalar", scalars)
+    def test_device(self, scalar):
+        assert scalar.device == "cpu"
+
+    @pytest.mark.parametrize("scalar", scalars)
+    def test_to_device(self, scalar):
+        assert scalar.to_device("cpu") is scalar
+
+    @pytest.mark.parametrize("scalar", scalars)
+    def test___array_namespace__(self, scalar):
+        assert scalar.__array_namespace__() is np
+
+
+@pytest.mark.parametrize("scalar", [np.bool(True), np.int8(1), np.float64(1)])
+def test_array_wrap(scalar):
+    # Test scalars array wrap as long as it exists.  NumPy itself should
+    # probably not use it, so it may not be necessary to keep it around.
+
+    arr0d = np.array(3, dtype=np.int8)
+    # Third argument not passed, None, or True "decays" to scalar.
+    # (I don't think NumPy would pass `None`, but it seems clear to support)
+    assert type(scalar.__array_wrap__(arr0d)) is np.int8
+    assert type(scalar.__array_wrap__(arr0d, None, None)) is np.int8
+    assert type(scalar.__array_wrap__(arr0d, None, True)) is np.int8
+
+    # Otherwise, result should be the input
+    assert scalar.__array_wrap__(arr0d, None, False) is arr0d
+
+    # An old bug.  A non 0-d array cannot be converted to scalar:
+    arr1d = np.array([3], dtype=np.int8)
+    assert scalar.__array_wrap__(arr1d) is arr1d
+    assert scalar.__array_wrap__(arr1d, None, True) is arr1d
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc")
+class TestSignature:
+    # test that scalar types have a valid __text_signature__ or __signature__ set
+    @pytest.mark.parametrize(
+        "sctype",
+        [
+            *sctypes["int"],
+            *sctypes["uint"],
+            *sctypes["float"],
+            *sctypes["complex"],
+            *sctypes["others"],
+            np.datetime64,
+            np.timedelta64,
+        ],
+    )
+    def test_constructor_signatures(self, sctype: type[np.generic]):
+        try:
+            sig = inspect.signature(sctype)
+        except ValueError:
+            pytest.fail(f"missing signature: {sctype}")
+
+        assert sig.parameters
+
+    @pytest.mark.parametrize(
+        "sctype",
+        [np.integer, *sctypes["int"], *sctypes["uint"], *sctypes["float"]],
+    )
+    def test_method_signatures_is_integer(self, sctype: type[np.integer | np.floating]):
+        try:
+            sig = inspect.signature(sctype.is_integer)
+        except ValueError:
+            pytest.fail(f"missing signature: {sctype.__name__}.is_integer")
+
+        assert len(sig.parameters) == 1
+        assert sig.parameters["self"].kind == inspect.Parameter.POSITIONAL_ONLY
+
+    @pytest.mark.parametrize("sctype", sctypes["float"])
+    def test_method_signatures_as_integer_ratio(self, sctype: type[np.floating]):
+        try:
+            sig = inspect.signature(sctype.as_integer_ratio)
+        except ValueError:
+            pytest.fail(f"missing signature: {sctype.__name__}.as_integer_ratio")
+
+        assert len(sig.parameters) == 1
+        assert sig.parameters["self"].kind == inspect.Parameter.POSITIONAL_ONLY
+
+    @pytest.mark.parametrize(
+        "method_name",
+        [
+            "__array_namespace__", "__copy__", "__deepcopy__", "all", "any", "argmax",
+            "argmin", "argsort", "astype", "byteswap", "choose", "clip", "compress",
+            "conj", "conjugate", "copy", "cumprod", "cumsum", "diagonal", "dump",
+            "dumps", "fill", "flatten", "getfield", "item", "max", "mean", "min",
+            "nonzero", "prod", "put", "ravel", "repeat", "reshape", "resize", "round",
+            "searchsorted", "setfield", "setflags", "sort", "squeeze", "std", "sum",
+            "swapaxes", "take", "to_device", "tobytes", "tofile", "tolist", "trace",
+            "transpose", "var", "view",
+        ],
+    )
+    def test_array_scalar_method_signatures(self, method_name: str):
+        # methods shared by np.generic and np.ndarray should have the same signature
+        fn_generic = getattr(np.generic, method_name)
+        sig_generic = inspect.signature(fn_generic)
+        assert "self" in sig_generic.parameters
+        assert sig_generic.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY
+
+        fn_ndarray = getattr(np.ndarray, method_name)
+        sig_ndarray = inspect.signature(fn_ndarray)
+        assert sig_generic == sig_ndarray
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarbuffer.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarbuffer.py
new file mode 100644
index 0000000000000000000000000000000000000000..9f7481686d887628241446f53526108648cae7f3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarbuffer.py
@@ -0,0 +1,153 @@
+"""
+Test scalar buffer interface adheres to PEP 3118
+"""
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_tests import get_buffer_info
+from numpy._core._rational_tests import rational
+from numpy.testing import assert_, assert_equal, assert_raises
+
+# PEP3118 format strings for native (standard alignment and byteorder) types
+scalars_and_codes = [
+    (np.bool, '?'),
+    (np.byte, 'b'),
+    (np.short, 'h'),
+    (np.intc, 'i'),
+    (np.long, 'l'),
+    (np.longlong, 'q'),
+    (np.ubyte, 'B'),
+    (np.ushort, 'H'),
+    (np.uintc, 'I'),
+    (np.ulong, 'L'),
+    (np.ulonglong, 'Q'),
+    (np.half, 'e'),
+    (np.single, 'f'),
+    (np.double, 'd'),
+    (np.longdouble, 'g'),
+    (np.csingle, 'Zf'),
+    (np.cdouble, 'Zd'),
+    (np.clongdouble, 'Zg'),
+]
+scalars_only, codes_only = zip(*scalars_and_codes)
+
+
+class TestScalarPEP3118:
+
+    @pytest.mark.parametrize('scalar', scalars_only, ids=codes_only)
+    def test_scalar_match_array(self, scalar):
+        x = scalar()
+        a = np.array([], dtype=np.dtype(scalar))
+        mv_x = memoryview(x)
+        mv_a = memoryview(a)
+        assert_equal(mv_x.format, mv_a.format)
+
+    @pytest.mark.parametrize('scalar', scalars_only, ids=codes_only)
+    def test_scalar_dim(self, scalar):
+        x = scalar()
+        mv_x = memoryview(x)
+        assert_equal(mv_x.itemsize, np.dtype(scalar).itemsize)
+        assert_equal(mv_x.ndim, 0)
+        assert_equal(mv_x.shape, ())
+        assert_equal(mv_x.strides, ())
+        assert_equal(mv_x.suboffsets, ())
+
+    @pytest.mark.parametrize('scalar, code', scalars_and_codes, ids=codes_only)
+    def test_scalar_code_and_properties(self, scalar, code):
+        x = scalar()
+        expected = {'strides': (), 'itemsize': x.dtype.itemsize, 'ndim': 0,
+                        'shape': (), 'format': code, 'readonly': True}
+
+        mv_x = memoryview(x)
+        assert self._as_dict(mv_x) == expected
+
+    @pytest.mark.parametrize('scalar', scalars_only, ids=codes_only)
+    def test_scalar_buffers_readonly(self, scalar):
+        x = scalar()
+        with pytest.raises(BufferError, match="scalar buffer is readonly"):
+            get_buffer_info(x, ["WRITABLE"])
+
+    def test_void_scalar_structured_data(self):
+        dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))])
+        x = np.array(('ndarray_scalar', (1.2, 3.0)), dtype=dt)[()]
+        assert_(isinstance(x, np.void))
+        mv_x = memoryview(x)
+        expected_size = 16 * np.dtype((np.str_, 1)).itemsize
+        expected_size += 2 * np.dtype(np.float64).itemsize
+        assert_equal(mv_x.itemsize, expected_size)
+        assert_equal(mv_x.ndim, 0)
+        assert_equal(mv_x.shape, ())
+        assert_equal(mv_x.strides, ())
+        assert_equal(mv_x.suboffsets, ())
+
+        # check scalar format string against ndarray format string
+        a = np.array([('Sarah', (8.0, 7.0)), ('John', (6.0, 7.0))], dtype=dt)
+        assert_(isinstance(a, np.ndarray))
+        mv_a = memoryview(a)
+        assert_equal(mv_x.itemsize, mv_a.itemsize)
+        assert_equal(mv_x.format, mv_a.format)
+
+        # Check that we do not allow writeable buffer export (technically
+        # we could allow it sometimes here...)
+        with pytest.raises(BufferError, match="scalar buffer is readonly"):
+            get_buffer_info(x, ["WRITABLE"])
+
+    def _as_dict(self, m):
+        return {'strides': m.strides, 'shape': m.shape, 'itemsize': m.itemsize,
+                    'ndim': m.ndim, 'format': m.format, 'readonly': m.readonly}
+
+    def test_datetime_memoryview(self):
+        # gh-11656
+        # Values verified with v1.13.3, shape is not () as in test_scalar_dim
+
+        dt1 = np.datetime64('2016-01-01')
+        dt2 = np.datetime64('2017-01-01')
+        expected = {'strides': (1,), 'itemsize': 1, 'ndim': 1, 'shape': (8,),
+                        'format': 'B', 'readonly': True}
+        v = memoryview(dt1)
+        assert self._as_dict(v) == expected
+
+        v = memoryview(dt2 - dt1)
+        assert self._as_dict(v) == expected
+
+        dt = np.dtype([('a', 'uint16'), ('b', 'M8[s]')])
+        a = np.empty(1, dt)
+        # Fails to create a PEP 3118 valid buffer
+        assert_raises((ValueError, BufferError), memoryview, a[0])
+
+        # Check that we do not allow writeable buffer export
+        with pytest.raises(BufferError, match="scalar buffer is readonly"):
+            get_buffer_info(dt1, ["WRITABLE"])
+
+    @pytest.mark.parametrize('s', [
+        pytest.param("\x32\x32", id="ascii"),
+        pytest.param("\uFE0F\uFE0F", id="basic multilingual"),
+        pytest.param("\U0001f4bb\U0001f4bb", id="non-BMP"),
+    ])
+    def test_str_ucs4(self, s):
+        s = np.str_(s)  # only our subclass implements the buffer protocol
+
+        # all the same, characters always encode as ucs4
+        expected = {'strides': (), 'itemsize': 8, 'ndim': 0, 'shape': (),
+                    'format': '2w', 'readonly': True}
+
+        v = memoryview(s)
+        assert self._as_dict(v) == expected
+
+        # integers of the paltform-appropriate endianness
+        code_points = np.frombuffer(v, dtype='i4')
+
+        assert_equal(code_points, [ord(c) for c in s])
+
+        # Check that we do not allow writeable buffer export
+        with pytest.raises(BufferError, match="scalar buffer is readonly"):
+            get_buffer_info(s, ["WRITABLE"])
+
+    def test_user_scalar_fails_buffer(self):
+        r = rational(1)
+        with assert_raises(TypeError):
+            memoryview(r)
+
+        # Check that we do not allow writeable buffer export
+        with pytest.raises(BufferError, match="scalar buffer is readonly"):
+            get_buffer_info(r, ["WRITABLE"])
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarinherit.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarinherit.py
new file mode 100644
index 0000000000000000000000000000000000000000..acca6266a63f14f82b899688a3974ea115e2f2f3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarinherit.py
@@ -0,0 +1,105 @@
+""" Test printing of scalar types.
+
+"""
+import pytest
+
+import numpy as np
+from numpy.testing import assert_, assert_raises
+
+
+class A:
+    pass
+class B(A, np.float64):
+    pass
+
+class C(B):
+    pass
+class D(C, B):
+    pass
+
+class B0(np.float64, A):
+    pass
+class C0(B0):
+    pass
+
+class HasNew:
+    def __new__(cls, *args, **kwargs):
+        return cls, args, kwargs
+
+class B1(np.float64, HasNew):
+    pass
+
+
+class TestInherit:
+    def test_init(self):
+        x = B(1.0)
+        assert_(str(x) == '1.0')
+        y = C(2.0)
+        assert_(str(y) == '2.0')
+        z = D(3.0)
+        assert_(str(z) == '3.0')
+
+    def test_init2(self):
+        x = B0(1.0)
+        assert_(str(x) == '1.0')
+        y = C0(2.0)
+        assert_(str(y) == '2.0')
+
+    def test_gh_15395(self):
+        # HasNew is the second base, so `np.float64` should have priority
+        x = B1(1.0)
+        assert_(str(x) == '1.0')
+
+        # previously caused RecursionError!?
+        with pytest.raises(TypeError):
+            B1(1.0, 2.0)
+
+    def test_int_repr(self):
+        # Test that integer repr works correctly for subclasses (gh-27106)
+        class my_int16(np.int16):
+            pass
+
+        s = repr(my_int16(3))
+        assert s == "my_int16(3)"
+
+class TestCharacter:
+    def test_char_radd(self):
+        # GH issue 9620, reached gentype_add and raise TypeError
+        np_s = np.bytes_('abc')
+        np_u = np.str_('abc')
+        s = b'def'
+        u = 'def'
+        assert_(np_s.__radd__(np_s) is NotImplemented)
+        assert_(np_s.__radd__(np_u) is NotImplemented)
+        assert_(np_s.__radd__(s) is NotImplemented)
+        assert_(np_s.__radd__(u) is NotImplemented)
+        assert_(np_u.__radd__(np_s) is NotImplemented)
+        assert_(np_u.__radd__(np_u) is NotImplemented)
+        assert_(np_u.__radd__(s) is NotImplemented)
+        assert_(np_u.__radd__(u) is NotImplemented)
+        assert_(s + np_s == b'defabc')
+        assert_(u + np_u == 'defabc')
+
+        class MyStr(str, np.generic):
+            # would segfault
+            pass
+
+        with assert_raises(TypeError):
+            # Previously worked, but gave completely wrong result
+            ret = s + MyStr('abc')
+
+        class MyBytes(bytes, np.generic):
+            # would segfault
+            pass
+
+        ret = s + MyBytes(b'abc')
+        assert type(ret) is type(s)
+        assert ret == b"defabc"
+
+    def test_char_repeat(self):
+        np_s = np.bytes_('abc')
+        np_u = np.str_('abc')
+        res_s = b'abc' * 5
+        res_u = 'abc' * 5
+        assert_(np_s * 5 == res_s)
+        assert_(np_u * 5 == res_u)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarmath.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarmath.py
new file mode 100644
index 0000000000000000000000000000000000000000..6a878591faae8bd132b49d743de96cba39666882
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarmath.py
@@ -0,0 +1,1168 @@
+import contextlib
+import itertools
+import operator
+import platform
+import sys
+import warnings
+
+import pytest
+from hypothesis import given, settings
+from hypothesis.extra import numpy as hynp
+from hypothesis.strategies import sampled_from
+
+import numpy as np
+from numpy._core._rational_tests import rational
+from numpy._utils import _pep440
+from numpy.exceptions import ComplexWarning
+from numpy.testing import (
+    IS_PYPY,
+    _gen_alignment_data,
+    assert_,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    check_support_sve,
+)
+
+types = [np.bool, np.byte, np.ubyte, np.short, np.ushort, np.intc, np.uintc,
+         np.int_, np.uint, np.longlong, np.ulonglong,
+         np.single, np.double, np.longdouble, np.csingle,
+         np.cdouble, np.clongdouble]
+
+floating_types = np.floating.__subclasses__()
+complex_floating_types = np.complexfloating.__subclasses__()
+
+objecty_things = [object(), None, np.array(None, dtype=object)]
+
+binary_operators_for_scalars = [
+    operator.lt, operator.le, operator.eq, operator.ne, operator.ge,
+    operator.gt, operator.add, operator.floordiv, operator.mod,
+    operator.mul, operator.pow, operator.sub, operator.truediv
+]
+binary_operators_for_scalar_ints = binary_operators_for_scalars + [
+    operator.xor, operator.or_, operator.and_
+]
+
+
+# This compares scalarmath against ufuncs.
+
+class TestTypes:
+    def test_types(self):
+        for atype in types:
+            a = atype(1)
+            assert_(a == 1, f"error with {atype!r}: got {a!r}")
+
+    def test_type_add(self):
+        # list of types
+        for k, atype in enumerate(types):
+            a_scalar = atype(3)
+            a_array = np.array([3], dtype=atype)
+            for l, btype in enumerate(types):
+                b_scalar = btype(1)
+                b_array = np.array([1], dtype=btype)
+                c_scalar = a_scalar + b_scalar
+                c_array = a_array + b_array
+                # It was comparing the type numbers, but the new ufunc
+                # function-finding mechanism finds the lowest function
+                # to which both inputs can be cast - which produces 'l'
+                # when you do 'q' + 'b'.  The old function finding mechanism
+                # skipped ahead based on the first argument, but that
+                # does not produce properly symmetric results...
+                assert_equal(c_scalar.dtype, c_array.dtype,
+                           "error with types (%d/'%c' + %d/'%c')" %
+                            (k, np.dtype(atype).char, l, np.dtype(btype).char))
+
+    def test_type_create(self):
+        for atype in types:
+            a = np.array([1, 2, 3], atype)
+            b = atype([1, 2, 3])
+            assert_equal(a, b)
+
+    def test_leak(self):
+        # test leak of scalar objects
+        # a leak would show up in valgrind as still-reachable of ~2.6MB
+        for i in range(200000):
+            np.add(1, 1)
+
+
+def check_ufunc_scalar_equivalence(op, arr1, arr2):
+    scalar1 = arr1[()]
+    scalar2 = arr2[()]
+    assert isinstance(scalar1, np.generic)
+    assert isinstance(scalar2, np.generic)
+
+    if arr1.dtype.kind == "c" or arr2.dtype.kind == "c":
+        comp_ops = {operator.ge, operator.gt, operator.le, operator.lt}
+        if op in comp_ops and (np.isnan(scalar1) or np.isnan(scalar2)):
+            pytest.xfail("complex comp ufuncs use sort-order, scalars do not.")
+    if op == operator.pow and arr2.item() in [-1, 0, 0.5, 1, 2]:
+        # array**scalar special case can have different result dtype
+        # (Other powers may have issues also, but are not hit here.)
+        # TODO: It would be nice to resolve this issue.
+        pytest.skip("array**2 can have incorrect/weird result dtype")
+
+    # ignore fpe's since they may just mismatch for integers anyway.
+    with warnings.catch_warnings(), np.errstate(all="ignore"):
+        # Comparisons DeprecationWarnings replacing errors (2022-03):
+        warnings.simplefilter("error", DeprecationWarning)
+        try:
+            res = op(arr1, arr2)
+        except Exception as e:
+            with pytest.raises(type(e)):
+                op(scalar1, scalar2)
+        else:
+            scalar_res = op(scalar1, scalar2)
+            assert_array_equal(scalar_res, res, strict=True)
+
+
+@pytest.mark.slow
+@settings(max_examples=10000, deadline=2000)
+@given(sampled_from(binary_operators_for_scalars),
+       hynp.arrays(dtype=hynp.scalar_dtypes(), shape=()),
+       hynp.arrays(dtype=hynp.scalar_dtypes(), shape=()))
+def test_array_scalar_ufunc_equivalence(op, arr1, arr2):
+    """
+    This is a thorough test attempting to cover important promotion paths
+    and ensuring that arrays and scalars stay as aligned as possible.
+    However, if it creates troubles, it should maybe just be removed.
+    """
+    check_ufunc_scalar_equivalence(op, arr1, arr2)
+
+
+@pytest.mark.slow
+@given(sampled_from(binary_operators_for_scalars),
+       hynp.scalar_dtypes(), hynp.scalar_dtypes())
+def test_array_scalar_ufunc_dtypes(op, dt1, dt2):
+    # Same as above, but don't worry about sampling weird values so that we
+    # do not have to sample as much
+    arr1 = np.array(2, dtype=dt1)
+    arr2 = np.array(3, dtype=dt2)  # some power do weird things.
+
+    check_ufunc_scalar_equivalence(op, arr1, arr2)
+
+
+@pytest.mark.parametrize("fscalar", [np.float16, np.float32])
+def test_int_float_promotion_truediv(fscalar):
+    # Promotion for mixed int and float32/float16 must not go to float64
+    i = np.int8(1)
+    f = fscalar(1)
+    expected = np.result_type(i, f)
+    assert (i / f).dtype == expected
+    assert (f / i).dtype == expected
+    # But normal int / int true division goes to float64:
+    assert (i / i).dtype == np.dtype("float64")
+    # For int16, result has to be ast least float32 (takes ufunc path):
+    assert (np.int16(1) / f).dtype == np.dtype("float32")
+
+
+class TestBaseMath:
+    @pytest.mark.xfail(check_support_sve(), reason="gh-22982")
+    def test_blocked(self):
+        # test alignments offsets for simd instructions
+        # alignments for vz + 2 * (vs - 1) + 1
+        for dt, sz in [(np.float32, 11), (np.float64, 7), (np.int32, 11)]:
+            for out, inp1, inp2, msg in _gen_alignment_data(dtype=dt,
+                                                            type='binary',
+                                                            max_size=sz):
+                exp1 = np.ones_like(inp1)
+                inp1[...] = np.ones_like(inp1)
+                inp2[...] = np.zeros_like(inp2)
+                assert_almost_equal(np.add(inp1, inp2), exp1, err_msg=msg)
+                assert_almost_equal(np.add(inp1, 2), exp1 + 2, err_msg=msg)
+                assert_almost_equal(np.add(1, inp2), exp1, err_msg=msg)
+
+                np.add(inp1, inp2, out=out)
+                assert_almost_equal(out, exp1, err_msg=msg)
+
+                inp2[...] += np.arange(inp2.size, dtype=dt) + 1
+                assert_almost_equal(np.square(inp2),
+                                    np.multiply(inp2, inp2), err_msg=msg)
+                # skip true divide for ints
+                if dt != np.int32:
+                    assert_almost_equal(np.reciprocal(inp2),
+                                        np.divide(1, inp2), err_msg=msg)
+
+                inp1[...] = np.ones_like(inp1)
+                np.add(inp1, 2, out=out)
+                assert_almost_equal(out, exp1 + 2, err_msg=msg)
+                inp2[...] = np.ones_like(inp2)
+                np.add(2, inp2, out=out)
+                assert_almost_equal(out, exp1 + 2, err_msg=msg)
+
+    def test_lower_align(self):
+        # check data that is not aligned to element size
+        # i.e doubles are aligned to 4 bytes on i386
+        d = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64)
+        o = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64)
+        assert_almost_equal(d + d, d * 2)
+        np.add(d, d, out=o)
+        np.add(np.ones_like(d), d, out=o)
+        np.add(d, np.ones_like(d), out=o)
+        np.add(np.ones_like(d), d)
+        np.add(d, np.ones_like(d))
+
+
+class TestPower:
+    def test_small_types(self):
+        for t in [np.int8, np.int16, np.float16]:
+            a = t(3)
+            b = a ** 4
+            assert_(b == 81, f"error with {t!r}: got {b!r}")
+
+    def test_large_types(self):
+        for t in [np.int32, np.int64, np.float32, np.float64, np.longdouble]:
+            a = t(51)
+            b = a ** 4
+            msg = f"error with {t!r}: got {b!r}"
+            if np.issubdtype(t, np.integer):
+                assert_(b == 6765201, msg)
+            else:
+                assert_almost_equal(b, 6765201, err_msg=msg)
+
+    def test_integers_to_negative_integer_power(self):
+        # Note that the combination of uint64 with a signed integer
+        # has common type np.float64. The other combinations should all
+        # raise a ValueError for integer ** negative integer.
+        exp = [np.array(-1, dt)[()] for dt in 'bhilq']
+
+        # 1 ** -1 possible special case
+        base = [np.array(1, dt)[()] for dt in 'bhilqBHILQ']
+        for i1, i2 in itertools.product(base, exp):
+            if i1.dtype != np.uint64:
+                assert_raises(ValueError, operator.pow, i1, i2)
+            else:
+                res = operator.pow(i1, i2)
+                assert_(res.dtype.type is np.float64)
+                assert_almost_equal(res, 1.)
+
+        # -1 ** -1 possible special case
+        base = [np.array(-1, dt)[()] for dt in 'bhilq']
+        for i1, i2 in itertools.product(base, exp):
+            if i1.dtype != np.uint64:
+                assert_raises(ValueError, operator.pow, i1, i2)
+            else:
+                res = operator.pow(i1, i2)
+                assert_(res.dtype.type is np.float64)
+                assert_almost_equal(res, -1.)
+
+        # 2 ** -1 perhaps generic
+        base = [np.array(2, dt)[()] for dt in 'bhilqBHILQ']
+        for i1, i2 in itertools.product(base, exp):
+            if i1.dtype != np.uint64:
+                assert_raises(ValueError, operator.pow, i1, i2)
+            else:
+                res = operator.pow(i1, i2)
+                assert_(res.dtype.type is np.float64)
+                assert_almost_equal(res, .5)
+
+    def test_mixed_types(self):
+        typelist = [np.int8, np.int16, np.float16,
+                    np.float32, np.float64, np.int8,
+                    np.int16, np.int32, np.int64]
+        for t1 in typelist:
+            for t2 in typelist:
+                a = t1(3)
+                b = t2(2)
+                result = a**b
+                msg = f"error with {t1!r} and {t2!r}:got {result!r}, expected {9!r}"
+                if np.issubdtype(np.dtype(result), np.integer):
+                    assert_(result == 9, msg)
+                else:
+                    assert_almost_equal(result, 9, err_msg=msg)
+
+    def test_modular_power(self):
+        # modular power is not implemented, so ensure it errors
+        a = 5
+        b = 4
+        c = 10
+        expected = pow(a, b, c)  # noqa: F841
+        for t in (np.int32, np.float32, np.complex64):
+            # note that 3-operand power only dispatches on the first argument
+            assert_raises(TypeError, operator.pow, t(a), b, c)
+            assert_raises(TypeError, operator.pow, np.array(t(a)), b, c)
+
+
+def floordiv_and_mod(x, y):
+    return (x // y, x % y)
+
+
+def _signs(dt):
+    if dt in np.typecodes['UnsignedInteger']:
+        return (+1,)
+    else:
+        return (+1, -1)
+
+
+class TestModulus:
+
+    def test_modulus_basic(self):
+        dt = np.typecodes['AllInteger'] + np.typecodes['Float']
+        for op in [floordiv_and_mod, divmod]:
+            for dt1, dt2 in itertools.product(dt, dt):
+                for sg1, sg2 in itertools.product(_signs(dt1), _signs(dt2)):
+                    fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s'
+                    msg = fmt % (op.__name__, dt1, dt2, sg1, sg2)
+                    a = np.array(sg1 * 71, dtype=dt1)[()]
+                    b = np.array(sg2 * 19, dtype=dt2)[()]
+                    div, rem = op(a, b)
+                    assert_equal(div * b + rem, a, err_msg=msg)
+                    if sg2 == -1:
+                        assert_(b < rem <= 0, msg)
+                    else:
+                        assert_(b > rem >= 0, msg)
+
+    def test_float_modulus_exact(self):
+        # test that float results are exact for small integers. This also
+        # holds for the same integers scaled by powers of two.
+        nlst = list(range(-127, 0))
+        plst = list(range(1, 128))
+        dividend = nlst + [0] + plst
+        divisor = nlst + plst
+        arg = list(itertools.product(dividend, divisor))
+        tgt = [divmod(*t) for t in arg]
+
+        a, b = np.array(arg, dtype=int).T
+        # convert exact integer results from Python to float so that
+        # signed zero can be used, it is checked.
+        tgtdiv, tgtrem = np.array(tgt, dtype=float).T
+        tgtdiv = np.where((tgtdiv == 0.0) & ((b < 0) ^ (a < 0)), -0.0, tgtdiv)
+        tgtrem = np.where((tgtrem == 0.0) & (b < 0), -0.0, tgtrem)
+
+        for op in [floordiv_and_mod, divmod]:
+            for dt in np.typecodes['Float']:
+                msg = f'op: {op.__name__}, dtype: {dt}'
+                fa = a.astype(dt)
+                fb = b.astype(dt)
+                # use list comprehension so a_ and b_ are scalars
+                div, rem = zip(*[op(a_, b_) for a_, b_ in zip(fa, fb)])
+                assert_equal(div, tgtdiv, err_msg=msg)
+                assert_equal(rem, tgtrem, err_msg=msg)
+
+    def test_float_modulus_roundoff(self):
+        # gh-6127
+        dt = np.typecodes['Float']
+        for op in [floordiv_and_mod, divmod]:
+            for dt1, dt2 in itertools.product(dt, dt):
+                for sg1, sg2 in itertools.product((+1, -1), (+1, -1)):
+                    fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s'
+                    msg = fmt % (op.__name__, dt1, dt2, sg1, sg2)
+                    a = np.array(sg1 * 78 * 6e-8, dtype=dt1)[()]
+                    b = np.array(sg2 * 6e-8, dtype=dt2)[()]
+                    div, rem = op(a, b)
+                    # Equal assertion should hold when fmod is used
+                    assert_equal(div * b + rem, a, err_msg=msg)
+                    if sg2 == -1:
+                        assert_(b < rem <= 0, msg)
+                    else:
+                        assert_(b > rem >= 0, msg)
+
+    def test_float_modulus_corner_cases(self):
+        # Check remainder magnitude.
+        for dt in np.typecodes['Float']:
+            b = np.array(1.0, dtype=dt)
+            a = np.nextafter(np.array(0.0, dtype=dt), -b)
+            rem = operator.mod(a, b)
+            assert_(rem <= b, f'dt: {dt}')
+            rem = operator.mod(-a, -b)
+            assert_(rem >= -b, f'dt: {dt}')
+
+        # Check nans, inf
+        with warnings.catch_warnings(), np.errstate(all='ignore'):
+            for dt in np.typecodes['Float']:
+                fone = np.array(1.0, dtype=dt)
+                fzer = np.array(0.0, dtype=dt)
+                finf = np.array(np.inf, dtype=dt)
+                fnan = np.array(np.nan, dtype=dt)
+                rem = operator.mod(fone, fzer)
+                assert_(np.isnan(rem), f'dt: {dt}')
+                # MSVC 2008 returns NaN here, so disable the check.
+                #rem = operator.mod(fone, finf)
+                #assert_(rem == fone, 'dt: %s' % dt)
+                rem = operator.mod(fone, fnan)
+                assert_(np.isnan(rem), f'dt: {dt}')
+                rem = operator.mod(finf, fone)
+                assert_(np.isnan(rem), f'dt: {dt}')
+                for op in [floordiv_and_mod, divmod]:
+                    div, mod = op(fone, fzer)
+                    assert_(np.isinf(div)) and assert_(np.isnan(mod))
+
+    def test_inplace_floordiv_handling(self):
+        # issue gh-12927
+        # this only applies to in-place floordiv //=, because the output type
+        # promotes to float which does not fit
+        a = np.array([1, 2], np.int64)
+        b = np.array([1, 2], np.uint64)
+        with pytest.raises(TypeError,
+                match=r"Cannot cast ufunc 'floor_divide' output from"):
+            a //= b
+
+class TestComparison:
+    def test_comparision_different_types(self):
+        x = np.array(1)
+        y = np.array('s')
+        eq = x == y
+        neq = x != y
+        assert eq is np.bool_(False)
+        assert neq is np.bool_(True)
+
+
+class TestComplexDivision:
+    def test_zero_division(self):
+        with np.errstate(all="ignore"):
+            for t in [np.complex64, np.complex128]:
+                a = t(0.0)
+                b = t(1.0)
+                assert_(np.isinf(b / a))
+                b = t(complex(np.inf, np.inf))
+                assert_(np.isinf(b / a))
+                b = t(complex(np.inf, np.nan))
+                assert_(np.isinf(b / a))
+                b = t(complex(np.nan, np.inf))
+                assert_(np.isinf(b / a))
+                b = t(complex(np.nan, np.nan))
+                assert_(np.isnan(b / a))
+                b = t(0.)
+                assert_(np.isnan(b / a))
+
+    def test_signed_zeros(self):
+        with np.errstate(all="ignore"):
+            for t in [np.complex64, np.complex128]:
+                # tupled (numerator, denominator, expected)
+                # for testing as expected == numerator/denominator
+                data = (
+                    (( 0.0, -1.0), ( 0.0, 1.0), (-1.0, -0.0)),
+                    (( 0.0, -1.0), ( 0.0, -1.0), ( 1.0, -0.0)),
+                    (( 0.0, -1.0), (-0.0, -1.0), ( 1.0, 0.0)),
+                    (( 0.0, -1.0), (-0.0, 1.0), (-1.0, 0.0)),
+                    (( 0.0, 1.0), ( 0.0, -1.0), (-1.0, 0.0)),
+                    (( 0.0, -1.0), ( 0.0, -1.0), ( 1.0, -0.0)),
+                    ((-0.0, -1.0), ( 0.0, -1.0), ( 1.0, -0.0)),
+                    ((-0.0, 1.0), ( 0.0, -1.0), (-1.0, -0.0))
+                )
+                for cases in data:
+                    n = cases[0]
+                    d = cases[1]
+                    ex = cases[2]
+                    result = t(complex(n[0], n[1])) / t(complex(d[0], d[1]))
+                    # check real and imag parts separately to avoid comparison
+                    # in array context, which does not account for signed zeros
+                    assert_equal(result.real, ex[0])
+                    assert_equal(result.imag, ex[1])
+
+    def test_branches(self):
+        with np.errstate(all="ignore"):
+            for t in [np.complex64, np.complex128]:
+                # tupled (numerator, denominator, expected)
+                # for testing as expected == numerator/denominator
+                data = []
+
+                # trigger branch: real(fabs(denom)) > imag(fabs(denom))
+                # followed by else condition as neither are == 0
+                data.append((( 2.0, 1.0), ( 2.0, 1.0), (1.0, 0.0)))
+
+                # trigger branch: real(fabs(denom)) > imag(fabs(denom))
+                # followed by if condition as both are == 0
+                # is performed in test_zero_division(), so this is skipped
+
+                # trigger else if branch: real(fabs(denom)) < imag(fabs(denom))
+                data.append(((1.0, 2.0), (1.0, 2.0), (1.0, 0.0)))
+
+                for cases in data:
+                    n = cases[0]
+                    d = cases[1]
+                    ex = cases[2]
+                    result = t(complex(n[0], n[1])) / t(complex(d[0], d[1]))
+                    # check real and imag parts separately to avoid comparison
+                    # in array context, which does not account for signed zeros
+                    assert_equal(result.real, ex[0])
+                    assert_equal(result.imag, ex[1])
+
+
+class TestConversion:
+    def test_int_from_long(self):
+        l = [1e6, 1e12, 1e18, -1e6, -1e12, -1e18]
+        li = [10**6, 10**12, 10**18, -10**6, -10**12, -10**18]
+        for T in [None, np.float64, np.int64]:
+            a = np.array(l, dtype=T)
+            assert_equal([int(_m) for _m in a], li)
+
+        a = np.array(l[:3], dtype=np.uint64)
+        assert_equal([int(_m) for _m in a], li[:3])
+
+    def test_iinfo_long_values(self):
+        for code in 'bBhH':
+            with pytest.raises(OverflowError):
+                np.array(np.iinfo(code).max + 1, dtype=code)
+
+        for code in np.typecodes['AllInteger']:
+            res = np.array(np.iinfo(code).max, dtype=code)
+            tgt = np.iinfo(code).max
+            assert_(res == tgt)
+
+        for code in np.typecodes['AllInteger']:
+            res = np.dtype(code).type(np.iinfo(code).max)
+            tgt = np.iinfo(code).max
+            assert_(res == tgt)
+
+    def test_int_raise_behaviour(self):
+        def overflow_error_func(dtype):
+            dtype(np.iinfo(dtype).max + 1)
+
+        for code in [np.int_, np.uint, np.longlong, np.ulonglong]:
+            assert_raises(OverflowError, overflow_error_func, code)
+
+    def test_int_from_infinite_longdouble(self):
+        # gh-627
+        x = np.longdouble(np.inf)
+        assert_raises(OverflowError, int, x)
+        with pytest.warns(ComplexWarning):
+            x = np.clongdouble(np.inf)
+            assert_raises(OverflowError, int, x)
+
+    @pytest.mark.skipif(not IS_PYPY, reason="Test is PyPy only (gh-9972)")
+    def test_int_from_infinite_longdouble___int__(self):
+        x = np.longdouble(np.inf)
+        assert_raises(OverflowError, x.__int__)
+        with pytest.warns(ComplexWarning):
+            x = np.clongdouble(np.inf)
+            assert_raises(OverflowError, x.__int__)
+
+    @pytest.mark.skipif(np.finfo(np.double) == np.finfo(np.longdouble),
+                        reason="long double is same as double")
+    @pytest.mark.skipif(platform.machine().startswith("ppc"),
+                        reason="IBM double double")
+    def test_int_from_huge_longdouble(self):
+        # Produce a longdouble that would overflow a double,
+        # use exponent that avoids bug in Darwin pow function.
+        exp = np.finfo(np.double).maxexp - 1
+        huge_ld = 2 * 1234 * np.longdouble(2) ** exp
+        huge_i = 2 * 1234 * 2 ** exp
+        assert_(huge_ld != np.inf)
+        assert_equal(int(huge_ld), huge_i)
+
+    def test_int_from_longdouble(self):
+        x = np.longdouble(1.5)
+        assert_equal(int(x), 1)
+        x = np.longdouble(-10.5)
+        assert_equal(int(x), -10)
+
+    def test_numpy_scalar_relational_operators(self):
+        # All integer
+        for dt1 in np.typecodes['AllInteger']:
+            assert_(1 > np.array(0, dtype=dt1)[()], f"type {dt1} failed")
+            assert_(not 1 < np.array(0, dtype=dt1)[()], f"type {dt1} failed")
+
+            for dt2 in np.typecodes['AllInteger']:
+                assert_(np.array(1, dtype=dt1)[()] > np.array(0, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+                assert_(not np.array(1, dtype=dt1)[()] < np.array(0, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+
+        # Unsigned integers
+        for dt1 in 'BHILQP':
+            assert_(-1 < np.array(1, dtype=dt1)[()], f"type {dt1} failed")
+            assert_(not -1 > np.array(1, dtype=dt1)[()], f"type {dt1} failed")
+            assert_(-1 != np.array(1, dtype=dt1)[()], f"type {dt1} failed")
+
+            # unsigned vs signed
+            for dt2 in 'bhilqp':
+                assert_(np.array(1, dtype=dt1)[()] > np.array(-1, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+                assert_(not np.array(1, dtype=dt1)[()] < np.array(-1, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+                assert_(np.array(1, dtype=dt1)[()] != np.array(-1, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+
+        # Signed integers and floats
+        for dt1 in 'bhlqp' + np.typecodes['Float']:
+            assert_(1 > np.array(-1, dtype=dt1)[()], f"type {dt1} failed")
+            assert_(not 1 < np.array(-1, dtype=dt1)[()], f"type {dt1} failed")
+            assert_(-1 == np.array(-1, dtype=dt1)[()], f"type {dt1} failed")
+
+            for dt2 in 'bhlqp' + np.typecodes['Float']:
+                assert_(np.array(1, dtype=dt1)[()] > np.array(-1, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+                assert_(not np.array(1, dtype=dt1)[()] < np.array(-1, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+                assert_(np.array(-1, dtype=dt1)[()] == np.array(-1, dtype=dt2)[()],
+                        f"type {dt1} and {dt2} failed")
+
+    def test_scalar_comparison_to_none(self):
+        # Scalars should just return False and not give a warnings.
+        # The comparisons are flagged by pep8, ignore that.
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', FutureWarning)
+            assert_(not np.float32(1) == None)  # noqa: E711
+            assert_(not np.str_('test') == None)  # noqa: E711
+            # This is dubious (see below):
+            assert_(not np.datetime64('NaT') == None)  # noqa: E711
+
+            assert_(np.float32(1) != None)  # noqa: E711
+            assert_(np.str_('test') != None)  # noqa: E711
+            # This is dubious (see below):
+            assert_(np.datetime64('NaT') != None)  # noqa: E711
+        assert_(len(w) == 0)
+
+        # For documentation purposes, this is why the datetime is dubious.
+        # At the time of deprecation this was no behaviour change, but
+        # it has to be considered when the deprecations are done.
+        assert_(np.equal(np.datetime64('NaT'), None))
+
+
+#class TestRepr:
+#    def test_repr(self):
+#        for t in types:
+#            val = t(1197346475.0137341)
+#            val_repr = repr(val)
+#            val2 = eval(val_repr)
+#            assert_equal( val, val2 )
+
+
+class TestRepr:
+    def _test_type_repr(self, t):
+        finfo = np.finfo(t)
+        last_fraction_bit_idx = finfo.nexp + finfo.nmant
+        last_exponent_bit_idx = finfo.nexp
+        storage_bytes = np.dtype(t).itemsize * 8
+        # could add some more types to the list below
+        for which in ['small denorm', 'small norm']:
+            # Values from https://en.wikipedia.org/wiki/IEEE_754
+            constr = np.array([0x00] * storage_bytes, dtype=np.uint8)
+            if which == 'small denorm':
+                byte = last_fraction_bit_idx // 8
+                bytebit = 7 - (last_fraction_bit_idx % 8)
+                constr[byte] = 1 << bytebit
+            elif which == 'small norm':
+                byte = last_exponent_bit_idx // 8
+                bytebit = 7 - (last_exponent_bit_idx % 8)
+                constr[byte] = 1 << bytebit
+            else:
+                raise ValueError('hmm')
+            val = constr.view(t)[0]
+            val_repr = repr(val)
+            val2 = t(eval(val_repr))
+            if not (val2 == 0 and val < 1e-100):
+                assert_equal(val, val2)
+
+    def test_float_repr(self):
+        # long double test cannot work, because eval goes through a python
+        # float
+        for t in [np.float32, np.float64]:
+            self._test_type_repr(t)
+
+
+if not IS_PYPY:
+    # sys.getsizeof() is not valid on PyPy
+    class TestSizeOf:
+
+        def test_equal_nbytes(self):
+            for type in types:
+                x = type(0)
+                assert_(sys.getsizeof(x) > x.nbytes)
+
+        def test_error(self):
+            d = np.float32()
+            assert_raises(TypeError, d.__sizeof__, "a")
+
+
+class TestMultiply:
+    def test_seq_repeat(self):
+        # Test that basic sequences get repeated when multiplied with
+        # numpy integers. And errors are raised when multiplied with others.
+        # Some of this behaviour may be controversial and could be open for
+        # change.
+        accepted_types = set(np.typecodes["AllInteger"])
+        deprecated_types = {'?'}
+        forbidden_types = (
+            set(np.typecodes["All"]) - accepted_types - deprecated_types)
+        forbidden_types -= {'V'}  # can't default-construct void scalars
+
+        for seq_type in (list, tuple):
+            seq = seq_type([1, 2, 3])
+            for numpy_type in accepted_types:
+                i = np.dtype(numpy_type).type(2)
+                assert_equal(seq * i, seq * int(i))
+                assert_equal(i * seq, int(i) * seq)
+
+            for numpy_type in deprecated_types:
+                i = np.dtype(numpy_type).type()
+                with assert_raises(TypeError):
+                    operator.mul(seq, i)
+
+            for numpy_type in forbidden_types:
+                i = np.dtype(numpy_type).type()
+                assert_raises(TypeError, operator.mul, seq, i)
+                assert_raises(TypeError, operator.mul, i, seq)
+
+    def test_no_seq_repeat_basic_array_like(self):
+        # Test that an array-like which does not know how to be multiplied
+        # does not attempt sequence repeat (raise TypeError).
+        # See also gh-7428.
+        class ArrayLike:
+            def __init__(self, arr):
+                self.arr = arr
+
+            def __array__(self, dtype=None, copy=None):
+                return self.arr
+
+        # Test for simple ArrayLike above and memoryviews (original report)
+        for arr_like in (ArrayLike(np.ones(3)), memoryview(np.ones(3))):
+            assert_array_equal(arr_like * np.float32(3.), np.full(3, 3.))
+            assert_array_equal(np.float32(3.) * arr_like, np.full(3, 3.))
+            assert_array_equal(arr_like * np.int_(3), np.full(3, 3))
+            assert_array_equal(np.int_(3) * arr_like, np.full(3, 3))
+
+
+class TestNegative:
+    def test_exceptions(self):
+        a = np.ones((), dtype=np.bool)[()]
+        assert_raises(TypeError, operator.neg, a)
+
+    def test_result(self):
+        types = np.typecodes['AllInteger'] + np.typecodes['AllFloat']
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            for dt in types:
+                a = np.ones((), dtype=dt)[()]
+                if dt in np.typecodes['UnsignedInteger']:
+                    st = np.dtype(dt).type
+                    max = st(np.iinfo(dt).max)
+                    assert_equal(operator.neg(a), max)
+                else:
+                    assert_equal(operator.neg(a) + a, 0)
+
+class TestSubtract:
+    def test_exceptions(self):
+        a = np.ones((), dtype=np.bool)[()]
+        assert_raises(TypeError, operator.sub, a, a)
+
+    def test_result(self):
+        types = np.typecodes['AllInteger'] + np.typecodes['AllFloat']
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            for dt in types:
+                a = np.ones((), dtype=dt)[()]
+                assert_equal(operator.sub(a, a), 0)
+
+
+class TestAbs:
+    def _test_abs_func(self, absfunc, test_dtype):
+        x = test_dtype(-1.5)
+        assert_equal(absfunc(x), 1.5)
+        x = test_dtype(0.0)
+        res = absfunc(x)
+        # assert_equal() checks zero signedness
+        assert_equal(res, 0.0)
+        x = test_dtype(-0.0)
+        res = absfunc(x)
+        assert_equal(res, 0.0)
+
+        x = test_dtype(np.finfo(test_dtype).max)
+        assert_equal(absfunc(x), x.real)
+
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', UserWarning)
+            x = test_dtype(np.finfo(test_dtype).tiny)
+            assert_equal(absfunc(x), x.real)
+
+        x = test_dtype(np.finfo(test_dtype).min)
+        assert_equal(absfunc(x), -x.real)
+
+    @pytest.mark.parametrize("dtype", floating_types + complex_floating_types)
+    def test_builtin_abs(self, dtype):
+        if (
+                sys.platform == "cygwin" and dtype == np.clongdouble and
+                (
+                    _pep440.parse(platform.release().split("-")[0])
+                    < _pep440.Version("3.3.0")
+                )
+        ):
+            pytest.xfail(
+                reason="absl is computed in double precision on cygwin < 3.3"
+            )
+        self._test_abs_func(abs, dtype)
+
+    @pytest.mark.parametrize("dtype", floating_types + complex_floating_types)
+    def test_numpy_abs(self, dtype):
+        if (
+                sys.platform == "cygwin" and dtype == np.clongdouble and
+                (
+                    _pep440.parse(platform.release().split("-")[0])
+                    < _pep440.Version("3.3.0")
+                )
+        ):
+            pytest.xfail(
+                reason="absl is computed in double precision on cygwin < 3.3"
+            )
+        self._test_abs_func(np.abs, dtype)
+
+class TestBitShifts:
+
+    @pytest.mark.parametrize('type_code', np.typecodes['AllInteger'])
+    @pytest.mark.parametrize('op',
+        [operator.rshift, operator.lshift], ids=['>>', '<<'])
+    def test_shift_all_bits(self, type_code, op):
+        """Shifts where the shift amount is the width of the type or wider """
+        # gh-2449
+        dt = np.dtype(type_code)
+        nbits = dt.itemsize * 8
+        for val in [5, -5]:
+            for shift in [nbits, nbits + 4]:
+                val_scl = np.array(val).astype(dt)[()]
+                shift_scl = dt.type(shift)
+                res_scl = op(val_scl, shift_scl)
+                if val_scl < 0 and op is operator.rshift:
+                    # sign bit is preserved
+                    assert_equal(res_scl, -1)
+                else:
+                    assert_equal(res_scl, 0)
+
+                # Result on scalars should be the same as on arrays
+                val_arr = np.array([val_scl] * 32, dtype=dt)
+                shift_arr = np.array([shift] * 32, dtype=dt)
+                res_arr = op(val_arr, shift_arr)
+                assert_equal(res_arr, res_scl)
+
+
+class TestHash:
+    @pytest.mark.parametrize("type_code", np.typecodes['AllInteger'])
+    def test_integer_hashes(self, type_code):
+        scalar = np.dtype(type_code).type
+        for i in range(128):
+            assert hash(i) == hash(scalar(i))
+
+    @pytest.mark.parametrize("type_code", np.typecodes['AllFloat'])
+    def test_float_and_complex_hashes(self, type_code):
+        scalar = np.dtype(type_code).type
+        for val in [np.pi, np.inf, 3, 6.]:
+            numpy_val = scalar(val)
+            # Cast back to Python, in case the NumPy scalar has less precision
+            if numpy_val.dtype.kind == 'c':
+                val = complex(numpy_val)
+            else:
+                val = float(numpy_val)
+            assert val == numpy_val
+            assert hash(val) == hash(numpy_val)
+
+        if hash(float(np.nan)) != hash(float(np.nan)):
+            # If Python distinguishes different NaNs we do so too (gh-18833)
+            assert hash(scalar(np.nan)) != hash(scalar(np.nan))
+
+    @pytest.mark.parametrize("type_code", np.typecodes['Complex'])
+    def test_complex_hashes(self, type_code):
+        # Test some complex valued hashes specifically:
+        scalar = np.dtype(type_code).type
+        for val in [np.pi + 1j, np.inf - 3j, 3j, 6. + 1j]:
+            numpy_val = scalar(val)
+            assert hash(complex(numpy_val)) == hash(numpy_val)
+
+
+@contextlib.contextmanager
+def recursionlimit(n):
+    o = sys.getrecursionlimit()
+    try:
+        sys.setrecursionlimit(n)
+        yield
+    finally:
+        sys.setrecursionlimit(o)
+
+
+@given(sampled_from(objecty_things),
+       sampled_from(binary_operators_for_scalar_ints),
+       sampled_from(types + [rational]))
+@pytest.mark.thread_unsafe(reason="sets recursion limit globally")
+def test_operator_object_left(o, op, type_):
+    try:
+        with recursionlimit(200):
+            op(o, type_(1))
+    except TypeError:
+        pass
+
+
+@given(sampled_from(objecty_things),
+       sampled_from(binary_operators_for_scalar_ints),
+       sampled_from(types + [rational]))
+@pytest.mark.thread_unsafe(reason="sets recursion limit globally")
+def test_operator_object_right(o, op, type_):
+    try:
+        with recursionlimit(200):
+            op(type_(1), o)
+    except TypeError:
+        pass
+
+
+@given(sampled_from(binary_operators_for_scalars),
+       sampled_from(types),
+       sampled_from(types))
+def test_operator_scalars(op, type1, type2):
+    try:
+        op(type1(1), type2(1))
+    except TypeError:
+        pass
+
+
+@pytest.mark.parametrize("op", binary_operators_for_scalars)
+@pytest.mark.parametrize("sctype", [np.longdouble, np.clongdouble])
+def test_longdouble_operators_with_obj(sctype, op):
+    # This is/used to be tricky, because NumPy generally falls back to
+    # using the ufunc via `np.asarray()`, this effectively might do:
+    # longdouble + None
+    #   -> asarray(longdouble) + np.array(None, dtype=object)
+    #   -> asarray(longdouble).astype(object) + np.array(None, dtype=object)
+    # And after getting the scalars in the inner loop:
+    #   -> longdouble + None
+    #
+    # That would recurse infinitely.  Other scalars return the python object
+    # on cast, so this type of things works OK.
+    #
+    # As of NumPy 2.1, this has been consolidated into the np.generic binops
+    # and now checks `.item()`.  That also allows the below path to work now.
+    try:
+        op(sctype(3), None)
+    except TypeError:
+        pass
+    try:
+        op(None, sctype(3))
+    except TypeError:
+        pass
+
+
+@pytest.mark.parametrize("op", [operator.add, operator.pow, operator.sub])
+@pytest.mark.parametrize("sctype", [np.longdouble, np.clongdouble])
+def test_longdouble_with_arrlike(sctype, op):
+    # As of NumPy 2.1, longdouble behaves like other types and can coerce
+    # e.g. lists.  (Not necessarily better, but consistent.)
+    assert_array_equal(op(sctype(3), [1, 2]), op(3, np.array([1, 2])))
+    assert_array_equal(op([1, 2], sctype(3)), op(np.array([1, 2]), 3))
+
+
+@pytest.mark.parametrize("op", binary_operators_for_scalars)
+@pytest.mark.parametrize("sctype", [np.longdouble, np.clongdouble])
+@np.errstate(all="ignore")
+def test_longdouble_operators_with_large_int(sctype, op):
+    # (See `test_longdouble_operators_with_obj` for why longdouble is special)
+    # NEP 50 means that the result is clearly a (c)longdouble here:
+    if sctype == np.clongdouble and op in [operator.mod, operator.floordiv]:
+        # The above operators are not support for complex though...
+        with pytest.raises(TypeError):
+            op(sctype(3), 2**64)
+        with pytest.raises(TypeError):
+            op(sctype(3), 2**64)
+    else:
+        assert op(sctype(3), -2**64) == op(sctype(3), sctype(-2**64))
+        assert op(2**64, sctype(3)) == op(sctype(2**64), sctype(3))
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+@pytest.mark.parametrize("operation", [
+        lambda min, max: max + max,
+        lambda min, max: min - max,
+        lambda min, max: max * max], ids=["+", "-", "*"])
+def test_scalar_integer_operation_overflow(dtype, operation):
+    st = np.dtype(dtype).type
+    min = st(np.iinfo(dtype).min)
+    max = st(np.iinfo(dtype).max)
+
+    with pytest.warns(RuntimeWarning, match="overflow encountered"):
+        operation(min, max)
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["Integer"])
+@pytest.mark.parametrize("operation", [
+        lambda min, neg_1: -min,
+        lambda min, neg_1: abs(min),
+        lambda min, neg_1: min * neg_1,
+        pytest.param(lambda min, neg_1: min // neg_1,
+            marks=pytest.mark.skip(reason="broken on some platforms"))],
+        ids=["neg", "abs", "*", "//"])
+def test_scalar_signed_integer_overflow(dtype, operation):
+    # The minimum signed integer can "overflow" for some additional operations
+    st = np.dtype(dtype).type
+    min = st(np.iinfo(dtype).min)
+    neg_1 = st(-1)
+
+    with pytest.warns(RuntimeWarning, match="overflow encountered"):
+        operation(min, neg_1)
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["UnsignedInteger"])
+def test_scalar_unsigned_integer_overflow(dtype):
+    val = np.dtype(dtype).type(8)
+    with pytest.warns(RuntimeWarning, match="overflow encountered"):
+        -val
+
+    zero = np.dtype(dtype).type(0)
+    -zero  # does not warn
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+@pytest.mark.parametrize("operation", [
+        lambda val, zero: val // zero,
+        lambda val, zero: val % zero, ], ids=["//", "%"])
+def test_scalar_integer_operation_divbyzero(dtype, operation):
+    st = np.dtype(dtype).type
+    val = st(100)
+    zero = st(0)
+
+    with pytest.warns(RuntimeWarning, match="divide by zero"):
+        operation(val, zero)
+
+
+ops_with_names = [
+    ("__lt__", "__gt__", operator.lt, True),
+    ("__le__", "__ge__", operator.le, True),
+    ("__eq__", "__eq__", operator.eq, True),
+    # Note __op__ and __rop__ may be identical here:
+    ("__ne__", "__ne__", operator.ne, True),
+    ("__gt__", "__lt__", operator.gt, True),
+    ("__ge__", "__le__", operator.ge, True),
+    ("__floordiv__", "__rfloordiv__", operator.floordiv, False),
+    ("__truediv__", "__rtruediv__", operator.truediv, False),
+    ("__add__", "__radd__", operator.add, False),
+    ("__mod__", "__rmod__", operator.mod, False),
+    ("__mul__", "__rmul__", operator.mul, False),
+    ("__pow__", "__rpow__", operator.pow, False),
+    ("__sub__", "__rsub__", operator.sub, False),
+]
+
+
+@pytest.mark.parametrize(["__op__", "__rop__", "op", "cmp"], ops_with_names)
+@pytest.mark.parametrize("sctype", [np.float32, np.float64, np.longdouble])
+def test_subclass_deferral(sctype, __op__, __rop__, op, cmp):
+    """
+    This test covers scalar subclass deferral.  Note that this is exceedingly
+    complicated, especially since it tends to fall back to the array paths and
+    these additionally add the "array priority" mechanism.
+
+    The behaviour was modified subtly in 1.22 (to make it closer to how Python
+    scalars work).  Due to its complexity and the fact that subclassing NumPy
+    scalars is probably a bad idea to begin with.  There is probably room
+    for adjustments here.
+    """
+    class myf_simple1(sctype):
+        pass
+
+    class myf_simple2(sctype):
+        pass
+
+    def op_func(self, other):
+        return __op__
+
+    def rop_func(self, other):
+        return __rop__
+
+    myf_op = type("myf_op", (sctype,), {__op__: op_func, __rop__: rop_func})
+
+    # inheritance has to override, or this is correctly lost:
+    res = op(myf_simple1(1), myf_simple2(2))
+    assert type(res) == sctype or type(res) == np.bool
+    assert op(myf_simple1(1), myf_simple2(2)) == op(1, 2)  # inherited
+
+    # Two independent subclasses do not really define an order.  This could
+    # be attempted, but we do not since Python's `int` does neither:
+    assert op(myf_op(1), myf_simple1(2)) == __op__
+    assert op(myf_simple1(1), myf_op(2)) == op(1, 2)  # inherited
+
+
+def test_longdouble_complex():
+    # Simple test to check longdouble and complex combinations, since these
+    # need to go through promotion, which longdouble needs to be careful about.
+    x = np.longdouble(1)
+    assert x + 1j == 1 + 1j
+    assert 1j + x == 1 + 1j
+
+
+@pytest.mark.parametrize(["__op__", "__rop__", "op", "cmp"], ops_with_names)
+@pytest.mark.parametrize("subtype", [float, int, complex, np.float16])
+def test_pyscalar_subclasses(subtype, __op__, __rop__, op, cmp):
+    # This tests that python scalar subclasses behave like a float64 (if they
+    # don't override it).
+    # In an earlier version of NEP 50, they behaved like the Python buildins.
+    def op_func(self, other):
+        return __op__
+
+    def rop_func(self, other):
+        return __rop__
+
+    # Check that deferring is indicated using `__array_ufunc__`:
+    myt = type("myt", (subtype,),
+               {__op__: op_func, __rop__: rop_func, "__array_ufunc__": None})
+
+    # Just like normally, we should never presume we can modify the float.
+    assert op(myt(1), np.float64(2)) == __op__
+    assert op(np.float64(1), myt(2)) == __rop__
+
+    if op in {operator.mod, operator.floordiv} and subtype == complex:
+        return  # module is not support for complex.  Do not test.
+
+    if __rop__ == __op__:
+        return
+
+    # When no deferring is indicated, subclasses are handled normally.
+    myt = type("myt", (subtype,), {__rop__: rop_func})
+    behaves_like = lambda x: np.array(subtype(x))[()]
+
+    # Check for float32, as a float subclass float64 may behave differently
+    res = op(myt(1), np.float16(2))
+    expected = op(behaves_like(1), np.float16(2))
+    assert res == expected
+    assert type(res) == type(expected)
+    res = op(np.float32(2), myt(1))
+    expected = op(np.float32(2), behaves_like(1))
+    assert res == expected
+    assert type(res) == type(expected)
+
+    # Same check for longdouble (compare via dtype to accept float64 when
+    # longdouble has the identical size), which is currently not perfectly
+    # consistent.
+    res = op(myt(1), np.longdouble(2))
+    expected = op(behaves_like(1), np.longdouble(2))
+    assert res == expected
+    assert np.dtype(type(res)) == np.dtype(type(expected))
+    res = op(np.float32(2), myt(1))
+    expected = op(np.float32(2), behaves_like(1))
+    assert res == expected
+    assert np.dtype(type(res)) == np.dtype(type(expected))
+
+
+def test_truediv_int():
+    # This should work, as the result is float:
+    assert np.uint8(3) / 123454 == np.float64(3) / 123454
+
+
+@pytest.mark.slow
+@pytest.mark.parametrize("op",
+    # TODO: Power is a bit special, but here mostly bools seem to behave oddly
+    [op for op in binary_operators_for_scalars if op is not operator.pow])
+@pytest.mark.parametrize("sctype", types)
+@pytest.mark.parametrize("other_type", [float, int, complex])
+@pytest.mark.parametrize("rop", [True, False])
+def test_scalar_matches_array_op_with_pyscalar(op, sctype, other_type, rop):
+    # Check that the ufunc path matches by coercing to an array explicitly
+    val1 = sctype(2)
+    val2 = other_type(2)
+
+    if rop:
+        _op = op
+        op = lambda x, y: _op(y, x)
+
+    try:
+        res = op(val1, val2)
+    except TypeError:
+        try:
+            expected = op(np.asarray(val1), val2)
+            raise AssertionError("ufunc didn't raise.")
+        except TypeError:
+            return
+    else:
+        expected = op(np.asarray(val1), val2)
+
+    # Note that we only check dtype equivalency, as ufuncs may pick the lower
+    # dtype if they are equivalent.
+    assert res == expected
+    if isinstance(val1, float) and other_type is complex and rop:
+        # Python complex accepts float subclasses, so we don't get a chance
+        # and the result may be a Python complex (thus, the `np.array()``)
+        assert np.array(res).dtype == expected.dtype
+    else:
+        assert res.dtype == expected.dtype
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarprint.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarprint.py
new file mode 100644
index 0000000000000000000000000000000000000000..accdd1ea22aed45064e177adefa53d7ce80b670b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_scalarprint.py
@@ -0,0 +1,403 @@
+""" Test printing of scalar types.
+
+"""
+import platform
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_MUSL, assert_, assert_equal, assert_raises
+
+
+class TestRealScalars:
+    def test_str(self):
+        svals = [0.0, -0.0, 1, -1, np.inf, -np.inf, np.nan]
+        styps = [np.float16, np.float32, np.float64, np.longdouble]
+        wanted = [
+             ['0.0',  '0.0',  '0.0',  '0.0' ],  # noqa: E202
+             ['-0.0', '-0.0', '-0.0', '-0.0'],
+             ['1.0',  '1.0',  '1.0',  '1.0' ],  # noqa: E202
+             ['-1.0', '-1.0', '-1.0', '-1.0'],
+             ['inf',  'inf',  'inf',  'inf' ],  # noqa: E202
+             ['-inf', '-inf', '-inf', '-inf'],
+             ['nan',  'nan',  'nan',  'nan' ]]  # noqa: E202
+
+        for wants, val in zip(wanted, svals):
+            for want, styp in zip(wants, styps):
+                msg = f'for str({np.dtype(styp).name}({val!r}))'
+                assert_equal(str(styp(val)), want, err_msg=msg)
+
+    def test_scalar_cutoffs(self):
+        # test that both the str and repr of np.float64 behaves
+        # like python floats in python3.
+        def check(v):
+            assert_equal(str(np.float64(v)), str(v))
+            assert_equal(str(np.float64(v)), repr(v))
+            assert_equal(repr(np.float64(v)), f"np.float64({v!r})")
+            assert_equal(repr(np.float64(v)), f"np.float64({v})")
+
+        # check we use the same number of significant digits
+        check(1.12345678901234567890)
+        check(0.0112345678901234567890)
+
+        # check switch from scientific output to positional and back
+        check(1e-5)
+        check(1e-4)
+        check(1e15)
+        check(1e16)
+
+    test_cases_gh_28679 = [
+        (np.half, -0.000099, "-9.9e-05"),
+        (np.half, 0.0001, "0.0001"),
+        (np.half, 999, "999.0"),
+        (np.half, -1000, "-1e+03"),
+        (np.single, 0.000099, "9.9e-05"),
+        (np.single, -0.000100001, "-0.000100001"),
+        (np.single, 999999, "999999.0"),
+        (np.single, -1000000, "-1e+06")
+    ]
+
+    @pytest.mark.parametrize("dtype, input_val, expected_str", test_cases_gh_28679)
+    def test_gh_28679(self, dtype, input_val, expected_str):
+        # test cutoff to exponent notation for half and single
+        assert_equal(str(dtype(input_val)), expected_str)
+
+    test_cases_legacy_2_2 = [
+        (np.half(65504), "65500.0"),
+        (np.single(1.e15), "1000000000000000.0"),
+        (np.single(1.e16), "1e+16"),
+    ]
+
+    @pytest.mark.parametrize("input_val, expected_str", test_cases_legacy_2_2)
+    def test_legacy_2_2_mode(self, input_val, expected_str):
+        # test legacy cutoff to exponent notation for half and single
+        with np.printoptions(legacy='2.2'):
+            assert_equal(str(input_val), expected_str)
+
+    def test_dragon4(self):
+        # these tests are adapted from Ryan Juckett's dragon4 implementation,
+        # see dragon4.c for details.
+
+        fpos32 = lambda x, **k: np.format_float_positional(np.float32(x), **k)
+        fsci32 = lambda x, **k: np.format_float_scientific(np.float32(x), **k)
+        fpos64 = lambda x, **k: np.format_float_positional(np.float64(x), **k)
+        fsci64 = lambda x, **k: np.format_float_scientific(np.float64(x), **k)
+
+        preckwd = lambda prec: {'unique': False, 'precision': prec}
+
+        assert_equal(fpos32('1.0'), "1.")
+        assert_equal(fsci32('1.0'), "1.e+00")
+        assert_equal(fpos32('10.234'), "10.234")
+        assert_equal(fpos32('-10.234'), "-10.234")
+        assert_equal(fsci32('10.234'), "1.0234e+01")
+        assert_equal(fsci32('-10.234'), "-1.0234e+01")
+        assert_equal(fpos32('1000.0'), "1000.")
+        assert_equal(fpos32('1.0', precision=0), "1.")
+        assert_equal(fsci32('1.0', precision=0), "1.e+00")
+        assert_equal(fpos32('10.234', precision=0), "10.")
+        assert_equal(fpos32('-10.234', precision=0), "-10.")
+        assert_equal(fsci32('10.234', precision=0), "1.e+01")
+        assert_equal(fsci32('-10.234', precision=0), "-1.e+01")
+        assert_equal(fpos32('10.234', precision=2), "10.23")
+        assert_equal(fsci32('-10.234', precision=2), "-1.02e+01")
+        assert_equal(fsci64('9.9999999999999995e-08', **preckwd(16)),
+                            '9.9999999999999995e-08')
+        assert_equal(fsci64('9.8813129168249309e-324', **preckwd(16)),
+                            '9.8813129168249309e-324')
+        assert_equal(fsci64('9.9999999999999694e-311', **preckwd(16)),
+                            '9.9999999999999694e-311')
+
+        # test rounding
+        # 3.1415927410 is closest float32 to np.pi
+        assert_equal(fpos32('3.14159265358979323846', **preckwd(10)),
+                            "3.1415927410")
+        assert_equal(fsci32('3.14159265358979323846', **preckwd(10)),
+                            "3.1415927410e+00")
+        assert_equal(fpos64('3.14159265358979323846', **preckwd(10)),
+                            "3.1415926536")
+        assert_equal(fsci64('3.14159265358979323846', **preckwd(10)),
+                            "3.1415926536e+00")
+        # 299792448 is closest float32 to 299792458
+        assert_equal(fpos32('299792458.0', **preckwd(5)), "299792448.00000")
+        assert_equal(fsci32('299792458.0', **preckwd(5)), "2.99792e+08")
+        assert_equal(fpos64('299792458.0', **preckwd(5)), "299792458.00000")
+        assert_equal(fsci64('299792458.0', **preckwd(5)), "2.99792e+08")
+
+        assert_equal(fpos32('3.14159265358979323846', **preckwd(25)),
+                            "3.1415927410125732421875000")
+        assert_equal(fpos64('3.14159265358979323846', **preckwd(50)),
+                         "3.14159265358979311599796346854418516159057617187500")
+        assert_equal(fpos64('3.14159265358979323846'), "3.141592653589793")
+
+        # smallest numbers
+        assert_equal(fpos32(0.5**(126 + 23), unique=False, precision=149),
+                    "0.00000000000000000000000000000000000000000000140129846432"
+                    "4817070923729583289916131280261941876515771757068283889791"
+                    "08268586060148663818836212158203125")
+
+        assert_equal(fpos64(5e-324, unique=False, precision=1074),
+                    "0.00000000000000000000000000000000000000000000000000000000"
+                    "0000000000000000000000000000000000000000000000000000000000"
+                    "0000000000000000000000000000000000000000000000000000000000"
+                    "0000000000000000000000000000000000000000000000000000000000"
+                    "0000000000000000000000000000000000000000000000000000000000"
+                    "0000000000000000000000000000000000049406564584124654417656"
+                    "8792868221372365059802614324764425585682500675507270208751"
+                    "8652998363616359923797965646954457177309266567103559397963"
+                    "9877479601078187812630071319031140452784581716784898210368"
+                    "8718636056998730723050006387409153564984387312473397273169"
+                    "6151400317153853980741262385655911710266585566867681870395"
+                    "6031062493194527159149245532930545654440112748012970999954"
+                    "1931989409080416563324524757147869014726780159355238611550"
+                    "1348035264934720193790268107107491703332226844753335720832"
+                    "4319360923828934583680601060115061698097530783422773183292"
+                    "4790498252473077637592724787465608477820373446969953364701"
+                    "7972677717585125660551199131504891101451037862738167250955"
+                    "8373897335989936648099411642057026370902792427675445652290"
+                    "87538682506419718265533447265625")
+
+        # largest numbers
+        f32x = np.finfo(np.float32).max
+        assert_equal(fpos32(f32x, **preckwd(0)),
+                    "340282346638528859811704183484516925440.")
+        assert_equal(fpos64(np.finfo(np.float64).max, **preckwd(0)),
+                    "1797693134862315708145274237317043567980705675258449965989"
+                    "1747680315726078002853876058955863276687817154045895351438"
+                    "2464234321326889464182768467546703537516986049910576551282"
+                    "0762454900903893289440758685084551339423045832369032229481"
+                    "6580855933212334827479782620414472316873817718091929988125"
+                    "0404026184124858368.")
+        # Warning: In unique mode only the integer digits necessary for
+        # uniqueness are computed, the rest are 0.
+        assert_equal(fpos32(f32x),
+                    "340282350000000000000000000000000000000.")
+
+        # Further tests of zero-padding vs rounding in different combinations
+        # of unique, fractional, precision, min_digits
+        # precision can only reduce digits, not add them.
+        # min_digits can only extend digits, not reduce them.
+        assert_equal(fpos32(f32x, unique=True, fractional=True, precision=0),
+                    "340282350000000000000000000000000000000.")
+        assert_equal(fpos32(f32x, unique=True, fractional=True, precision=4),
+                    "340282350000000000000000000000000000000.")
+        assert_equal(fpos32(f32x, unique=True, fractional=True, min_digits=0),
+                    "340282346638528859811704183484516925440.")
+        assert_equal(fpos32(f32x, unique=True, fractional=True, min_digits=4),
+                    "340282346638528859811704183484516925440.0000")
+        assert_equal(fpos32(f32x, unique=True, fractional=True,
+                                    min_digits=4, precision=4),
+                    "340282346638528859811704183484516925440.0000")
+        assert_raises(ValueError, fpos32, f32x, unique=True, fractional=False,
+                                          precision=0)
+        assert_equal(fpos32(f32x, unique=True, fractional=False, precision=4),
+                    "340300000000000000000000000000000000000.")
+        assert_equal(fpos32(f32x, unique=True, fractional=False, precision=20),
+                    "340282350000000000000000000000000000000.")
+        assert_equal(fpos32(f32x, unique=True, fractional=False, min_digits=4),
+                    "340282350000000000000000000000000000000.")
+        assert_equal(fpos32(f32x, unique=True, fractional=False,
+                                  min_digits=20),
+                    "340282346638528859810000000000000000000.")
+        assert_equal(fpos32(f32x, unique=True, fractional=False,
+                                  min_digits=15),
+                    "340282346638529000000000000000000000000.")
+        assert_equal(fpos32(f32x, unique=False, fractional=False, precision=4),
+                    "340300000000000000000000000000000000000.")
+        # test that unique rounding is preserved when precision is supplied
+        # but no extra digits need to be printed (gh-18609)
+        a = np.float64.fromhex('-1p-97')
+        assert_equal(fsci64(a, unique=True), '-6.310887241768095e-30')
+        assert_equal(fsci64(a, unique=False, precision=15),
+                     '-6.310887241768094e-30')
+        assert_equal(fsci64(a, unique=True, precision=15),
+                     '-6.310887241768095e-30')
+        assert_equal(fsci64(a, unique=True, min_digits=15),
+                     '-6.310887241768095e-30')
+        assert_equal(fsci64(a, unique=True, precision=15, min_digits=15),
+                     '-6.310887241768095e-30')
+        # adds/remove digits in unique mode with unbiased rnding
+        assert_equal(fsci64(a, unique=True, precision=14),
+                     '-6.31088724176809e-30')
+        assert_equal(fsci64(a, unique=True, min_digits=16),
+                     '-6.3108872417680944e-30')
+        assert_equal(fsci64(a, unique=True, precision=16),
+                     '-6.310887241768095e-30')
+        assert_equal(fsci64(a, unique=True, min_digits=14),
+                     '-6.310887241768095e-30')
+        # test min_digits in unique mode with different rounding cases
+        assert_equal(fsci64('1e120', min_digits=3), '1.000e+120')
+        assert_equal(fsci64('1e100', min_digits=3), '1.000e+100')
+
+        # test trailing zeros
+        assert_equal(fpos32('1.0', unique=False, precision=3), "1.000")
+        assert_equal(fpos64('1.0', unique=False, precision=3), "1.000")
+        assert_equal(fsci32('1.0', unique=False, precision=3), "1.000e+00")
+        assert_equal(fsci64('1.0', unique=False, precision=3), "1.000e+00")
+        assert_equal(fpos32('1.5', unique=False, precision=3), "1.500")
+        assert_equal(fpos64('1.5', unique=False, precision=3), "1.500")
+        assert_equal(fsci32('1.5', unique=False, precision=3), "1.500e+00")
+        assert_equal(fsci64('1.5', unique=False, precision=3), "1.500e+00")
+        # gh-10713
+        assert_equal(fpos64('324', unique=False, precision=5,
+                                   fractional=False), "324.00")
+
+    available_float_dtypes = [np.float16, np.float32, np.float64, np.float128]\
+        if hasattr(np, 'float128') else [np.float16, np.float32, np.float64]
+
+    @pytest.mark.parametrize("tp", available_float_dtypes)
+    def test_dragon4_positional_interface(self, tp):
+        # test is flaky for musllinux on np.float128
+        if IS_MUSL and tp == np.float128:
+            pytest.skip("Skipping flaky test of float128 on musllinux")
+
+        fpos = np.format_float_positional
+
+        # test padding
+        assert_equal(fpos(tp('1.0'), pad_left=4, pad_right=4), "   1.    ")
+        assert_equal(fpos(tp('-1.0'), pad_left=4, pad_right=4), "  -1.    ")
+        assert_equal(fpos(tp('-10.2'),
+                        pad_left=4, pad_right=4), " -10.2   ")
+
+        # test fixed (non-unique) mode
+        assert_equal(fpos(tp('1.0'), unique=False, precision=4), "1.0000")
+
+    @pytest.mark.parametrize("tp", available_float_dtypes)
+    def test_dragon4_positional_interface_trim(self, tp):
+        # test is flaky for musllinux on np.float128
+        if IS_MUSL and tp == np.float128:
+            pytest.skip("Skipping flaky test of float128 on musllinux")
+
+        fpos = np.format_float_positional
+        # test trimming
+        # trim of 'k' or '.' only affects non-unique mode, since unique
+        # mode will not output trailing 0s.
+        assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='k'),
+                        "1.0000")
+
+        assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='.'),
+                        "1.")
+        assert_equal(fpos(tp('1.2'), unique=False, precision=4, trim='.'),
+                        "1.2" if tp != np.float16 else "1.2002")
+
+        assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='0'),
+                        "1.0")
+        assert_equal(fpos(tp('1.2'), unique=False, precision=4, trim='0'),
+                        "1.2" if tp != np.float16 else "1.2002")
+        assert_equal(fpos(tp('1.'), trim='0'), "1.0")
+
+        assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='-'),
+                        "1")
+        assert_equal(fpos(tp('1.2'), unique=False, precision=4, trim='-'),
+                        "1.2" if tp != np.float16 else "1.2002")
+        assert_equal(fpos(tp('1.'), trim='-'), "1")
+        assert_equal(fpos(tp('1.001'), precision=1, trim='-'), "1")
+
+    @pytest.mark.parametrize("tp", available_float_dtypes)
+    @pytest.mark.parametrize("pad_val", [10**5, np.iinfo("int32").max])
+    def test_dragon4_positional_interface_overflow(self, tp, pad_val):
+        # test is flaky for musllinux on np.float128
+        if IS_MUSL and tp == np.float128:
+            pytest.skip("Skipping flaky test of float128 on musllinux")
+
+        fpos = np.format_float_positional
+
+        # gh-28068
+        with pytest.raises(RuntimeError,
+                           match="Float formatting result too large"):
+            fpos(tp('1.047'), unique=False, precision=pad_val)
+
+        with pytest.raises(RuntimeError,
+                           match="Float formatting result too large"):
+            fpos(tp('1.047'), precision=2, pad_left=pad_val)
+
+        with pytest.raises(RuntimeError,
+                           match="Float formatting result too large"):
+            fpos(tp('1.047'), precision=2, pad_right=pad_val)
+
+    @pytest.mark.parametrize("tp", available_float_dtypes)
+    def test_dragon4_scientific_interface(self, tp):
+        # test is flaky for musllinux on np.float128
+        if IS_MUSL and tp == np.float128:
+            pytest.skip("Skipping flaky test of float128 on musllinux")
+
+        fsci = np.format_float_scientific
+
+        # test exp_digits
+        assert_equal(fsci(tp('1.23e1'), exp_digits=5), "1.23e+00001")
+
+        # test fixed (non-unique) mode
+        assert_equal(fsci(tp('1.0'), unique=False, precision=4),
+                        "1.0000e+00")
+
+    @pytest.mark.skipif(not platform.machine().startswith("ppc64"),
+                        reason="only applies to ppc float128 values")
+    def test_ppc64_ibm_double_double128(self):
+        # check that the precision decreases once we get into the subnormal
+        # range. Unlike float64, this starts around 1e-292 instead of 1e-308,
+        # which happens when the first double is normal and the second is
+        # subnormal.
+        x = np.float128('2.123123123123123123123123123123123e-286')
+        got = [str(x / np.float128('2e' + str(i))) for i in range(40)]
+        expected = [
+            "1.06156156156156156156156156156157e-286",
+            "1.06156156156156156156156156156158e-287",
+            "1.06156156156156156156156156156159e-288",
+            "1.0615615615615615615615615615616e-289",
+            "1.06156156156156156156156156156157e-290",
+            "1.06156156156156156156156156156156e-291",
+            "1.0615615615615615615615615615616e-292",
+            "1.0615615615615615615615615615615e-293",
+            "1.061561561561561561561561561562e-294",
+            "1.06156156156156156156156156155e-295",
+            "1.0615615615615615615615615616e-296",
+            "1.06156156156156156156156156e-297",
+            "1.06156156156156156156156157e-298",
+            "1.0615615615615615615615616e-299",
+            "1.06156156156156156156156e-300",
+            "1.06156156156156156156155e-301",
+            "1.0615615615615615615616e-302",
+            "1.061561561561561561562e-303",
+            "1.06156156156156156156e-304",
+            "1.0615615615615615618e-305",
+            "1.06156156156156156e-306",
+            "1.06156156156156157e-307",
+            "1.0615615615615616e-308",
+            "1.06156156156156e-309",
+            "1.06156156156157e-310",
+            "1.0615615615616e-311",
+            "1.06156156156e-312",
+            "1.06156156154e-313",
+            "1.0615615616e-314",
+            "1.06156156e-315",
+            "1.06156155e-316",
+            "1.061562e-317",
+            "1.06156e-318",
+            "1.06155e-319",
+            "1.0617e-320",
+            "1.06e-321",
+            "1.04e-322",
+            "1e-323",
+            "0.0",
+            "0.0"]
+        assert_equal(got, expected)
+
+        # Note: we follow glibc behavior, but it (or gcc) might not be right.
+        # In particular we can get two values that print the same but are not
+        # equal:
+        a = np.float128('2') / np.float128('3')
+        b = np.float128(str(a))
+        assert_equal(str(a), str(b))
+        assert_(a != b)
+
+    def float32_roundtrip(self):
+        # gh-9360
+        x = np.float32(1024 - 2**-14)
+        y = np.float32(1024 - 2**-13)
+        assert_(repr(x) != repr(y))
+        assert_equal(np.float32(repr(x)), x)
+        assert_equal(np.float32(repr(y)), y)
+
+    def float64_vs_python(self):
+        # gh-2643, gh-6136, gh-6908
+        assert_equal(repr(np.float64(0.1)), repr(0.1))
+        assert_(repr(np.float64(0.20000000000000004)) != repr(0.2))
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_shape_base.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_shape_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..2383b930caeacf9cb6c53fa8b47e09054bb408c0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_shape_base.py
@@ -0,0 +1,904 @@
+import sys
+
+import pytest
+
+import numpy as np
+from numpy._core import (
+    arange,
+    array,
+    atleast_1d,
+    atleast_2d,
+    atleast_3d,
+    block,
+    concatenate,
+    hstack,
+    newaxis,
+    stack,
+    vstack,
+)
+from numpy._core.shape_base import (
+    _block_concatenate,
+    _block_dispatcher,
+    _block_setup,
+    _block_slicing,
+)
+from numpy.exceptions import AxisError
+from numpy.testing import (
+    IS_PYPY,
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+from numpy.testing._private.utils import requires_memory
+
+
+class TestAtleast1d:
+    def test_0D_array(self):
+        a = array(1)
+        b = array(2)
+        res = [atleast_1d(a), atleast_1d(b)]
+        desired = [array([1]), array([2])]
+        assert_array_equal(res, desired)
+
+    def test_1D_array(self):
+        a = array([1, 2])
+        b = array([2, 3])
+        res = [atleast_1d(a), atleast_1d(b)]
+        desired = [array([1, 2]), array([2, 3])]
+        assert_array_equal(res, desired)
+
+    def test_2D_array(self):
+        a = array([[1, 2], [1, 2]])
+        b = array([[2, 3], [2, 3]])
+        res = [atleast_1d(a), atleast_1d(b)]
+        desired = [a, b]
+        assert_array_equal(res, desired)
+
+    def test_3D_array(self):
+        a = array([[1, 2], [1, 2]])
+        b = array([[2, 3], [2, 3]])
+        a = array([a, a])
+        b = array([b, b])
+        res = [atleast_1d(a), atleast_1d(b)]
+        desired = [a, b]
+        assert_array_equal(res, desired)
+
+    def test_r1array(self):
+        """ Test to make sure equivalent Travis O's r1array function
+        """
+        assert_(atleast_1d(3).shape == (1,))
+        assert_(atleast_1d(3j).shape == (1,))
+        assert_(atleast_1d(3.0).shape == (1,))
+        assert_(atleast_1d([[2, 3], [4, 5]]).shape == (2, 2))
+
+
+class TestAtleast2d:
+    def test_0D_array(self):
+        a = array(1)
+        b = array(2)
+        res = [atleast_2d(a), atleast_2d(b)]
+        desired = [array([[1]]), array([[2]])]
+        assert_array_equal(res, desired)
+
+    def test_1D_array(self):
+        a = array([1, 2])
+        b = array([2, 3])
+        res = [atleast_2d(a), atleast_2d(b)]
+        desired = [array([[1, 2]]), array([[2, 3]])]
+        assert_array_equal(res, desired)
+
+    def test_2D_array(self):
+        a = array([[1, 2], [1, 2]])
+        b = array([[2, 3], [2, 3]])
+        res = [atleast_2d(a), atleast_2d(b)]
+        desired = [a, b]
+        assert_array_equal(res, desired)
+
+    def test_3D_array(self):
+        a = array([[1, 2], [1, 2]])
+        b = array([[2, 3], [2, 3]])
+        a = array([a, a])
+        b = array([b, b])
+        res = [atleast_2d(a), atleast_2d(b)]
+        desired = [a, b]
+        assert_array_equal(res, desired)
+
+    def test_r2array(self):
+        """ Test to make sure equivalent Travis O's r2array function
+        """
+        assert_(atleast_2d(3).shape == (1, 1))
+        assert_(atleast_2d([3j, 1]).shape == (1, 2))
+        assert_(atleast_2d([[[3, 1], [4, 5]], [[3, 5], [1, 2]]]).shape == (2, 2, 2))
+
+
+class TestAtleast3d:
+    def test_0D_array(self):
+        a = array(1)
+        b = array(2)
+        res = [atleast_3d(a), atleast_3d(b)]
+        desired = [array([[[1]]]), array([[[2]]])]
+        assert_array_equal(res, desired)
+
+    def test_1D_array(self):
+        a = array([1, 2])
+        b = array([2, 3])
+        res = [atleast_3d(a), atleast_3d(b)]
+        desired = [array([[[1], [2]]]), array([[[2], [3]]])]
+        assert_array_equal(res, desired)
+
+    def test_2D_array(self):
+        a = array([[1, 2], [1, 2]])
+        b = array([[2, 3], [2, 3]])
+        res = [atleast_3d(a), atleast_3d(b)]
+        desired = [a[:, :, newaxis], b[:, :, newaxis]]
+        assert_array_equal(res, desired)
+
+    def test_3D_array(self):
+        a = array([[1, 2], [1, 2]])
+        b = array([[2, 3], [2, 3]])
+        a = array([a, a])
+        b = array([b, b])
+        res = [atleast_3d(a), atleast_3d(b)]
+        desired = [a, b]
+        assert_array_equal(res, desired)
+
+
+class TestHstack:
+    def test_non_iterable(self):
+        assert_raises(TypeError, hstack, 1)
+
+    def test_empty_input(self):
+        assert_raises(ValueError, hstack, ())
+
+    def test_0D_array(self):
+        a = array(1)
+        b = array(2)
+        res = hstack([a, b])
+        desired = array([1, 2])
+        assert_array_equal(res, desired)
+
+    def test_1D_array(self):
+        a = array([1])
+        b = array([2])
+        res = hstack([a, b])
+        desired = array([1, 2])
+        assert_array_equal(res, desired)
+
+    def test_2D_array(self):
+        a = array([[1], [2]])
+        b = array([[1], [2]])
+        res = hstack([a, b])
+        desired = array([[1, 1], [2, 2]])
+        assert_array_equal(res, desired)
+
+    def test_generator(self):
+        with pytest.raises(TypeError, match="arrays to stack must be"):
+            hstack(np.arange(3) for _ in range(2))
+        with pytest.raises(TypeError, match="arrays to stack must be"):
+            hstack(x for x in np.ones((3, 2)))
+
+    def test_casting_and_dtype(self):
+        a = np.array([1, 2, 3])
+        b = np.array([2.5, 3.5, 4.5])
+        res = np.hstack((a, b), casting="unsafe", dtype=np.int64)
+        expected_res = np.array([1, 2, 3, 2, 3, 4])
+        assert_array_equal(res, expected_res)
+
+    def test_casting_and_dtype_type_error(self):
+        a = np.array([1, 2, 3])
+        b = np.array([2.5, 3.5, 4.5])
+        with pytest.raises(TypeError):
+            hstack((a, b), casting="safe", dtype=np.int64)
+
+
+class TestVstack:
+    def test_non_iterable(self):
+        assert_raises(TypeError, vstack, 1)
+
+    def test_empty_input(self):
+        assert_raises(ValueError, vstack, ())
+
+    def test_0D_array(self):
+        a = array(1)
+        b = array(2)
+        res = vstack([a, b])
+        desired = array([[1], [2]])
+        assert_array_equal(res, desired)
+
+    def test_1D_array(self):
+        a = array([1])
+        b = array([2])
+        res = vstack([a, b])
+        desired = array([[1], [2]])
+        assert_array_equal(res, desired)
+
+    def test_2D_array(self):
+        a = array([[1], [2]])
+        b = array([[1], [2]])
+        res = vstack([a, b])
+        desired = array([[1], [2], [1], [2]])
+        assert_array_equal(res, desired)
+
+    def test_2D_array2(self):
+        a = array([1, 2])
+        b = array([1, 2])
+        res = vstack([a, b])
+        desired = array([[1, 2], [1, 2]])
+        assert_array_equal(res, desired)
+
+    def test_generator(self):
+        with pytest.raises(TypeError, match="arrays to stack must be"):
+            vstack(np.arange(3) for _ in range(2))
+
+    def test_casting_and_dtype(self):
+        a = np.array([1, 2, 3])
+        b = np.array([2.5, 3.5, 4.5])
+        res = np.vstack((a, b), casting="unsafe", dtype=np.int64)
+        expected_res = np.array([[1, 2, 3], [2, 3, 4]])
+        assert_array_equal(res, expected_res)
+
+    def test_casting_and_dtype_type_error(self):
+        a = np.array([1, 2, 3])
+        b = np.array([2.5, 3.5, 4.5])
+        with pytest.raises(TypeError):
+            vstack((a, b), casting="safe", dtype=np.int64)
+
+
+class TestConcatenate:
+    def test_returns_copy(self):
+        a = np.eye(3)
+        b = np.concatenate([a])
+        b[0, 0] = 2
+        assert b[0, 0] != a[0, 0]
+
+    def test_exceptions(self):
+        # test axis must be in bounds
+        for ndim in [1, 2, 3]:
+            a = np.ones((1,) * ndim)
+            np.concatenate((a, a), axis=0)  # OK
+            assert_raises(AxisError, np.concatenate, (a, a), axis=ndim)
+            assert_raises(AxisError, np.concatenate, (a, a), axis=-(ndim + 1))
+
+        # Scalars cannot be concatenated
+        assert_raises(ValueError, concatenate, (0,))
+        assert_raises(ValueError, concatenate, (np.array(0),))
+
+        # dimensionality must match
+        assert_raises_regex(
+            ValueError,
+            r"all the input arrays must have same number of dimensions, but "
+            r"the array at index 0 has 1 dimension\(s\) and the array at "
+            r"index 1 has 2 dimension\(s\)",
+            np.concatenate, (np.zeros(1), np.zeros((1, 1))))
+
+        # test shapes must match except for concatenation axis
+        a = np.ones((1, 2, 3))
+        b = np.ones((2, 2, 3))
+        axis = list(range(3))
+        for i in range(3):
+            np.concatenate((a, b), axis=axis[0])  # OK
+            assert_raises_regex(
+                ValueError,
+                "all the input array dimensions except for the concatenation axis "
+                f"must match exactly, but along dimension {i}, the array at "
+                "index 0 has size 1 and the array at index 1 has size 2",
+                np.concatenate, (a, b), axis=axis[1])
+            assert_raises(ValueError, np.concatenate, (a, b), axis=axis[2])
+            a = np.moveaxis(a, -1, 0)
+            b = np.moveaxis(b, -1, 0)
+            axis.append(axis.pop(0))
+
+        # No arrays to concatenate raises ValueError
+        assert_raises(ValueError, concatenate, ())
+
+    @pytest.mark.slow
+    @pytest.mark.skipif(
+        sys.maxsize < 2**32,
+        reason="only problematic on 64bit platforms"
+    )
+    @requires_memory(2 * np.iinfo(np.intc).max)
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_huge_list_error(self):
+        a = np.array([1])
+        max_int = np.iinfo(np.intc).max
+        arrs = (a,) * (max_int + 1)
+        msg = (fr"concatenate\(\) only supports up to {max_int} arrays"
+               f" but got {max_int + 1}.")
+        with pytest.raises(ValueError, match=msg):
+            np.concatenate(arrs)
+
+    def test_concatenate_axis_None(self):
+        a = np.arange(4, dtype=np.float64).reshape((2, 2))
+        b = list(range(3))
+        c = ['x']
+        r = np.concatenate((a, a), axis=None)
+        assert_equal(r.dtype, a.dtype)
+        assert_equal(r.ndim, 1)
+        r = np.concatenate((a, b), axis=None)
+        assert_equal(r.size, a.size + len(b))
+        assert_equal(r.dtype, a.dtype)
+        r = np.concatenate((a, b, c), axis=None, dtype="U")
+        d = array(['0.0', '1.0', '2.0', '3.0',
+                   '0', '1', '2', 'x'])
+        assert_array_equal(r, d)
+
+        out = np.zeros(a.size + len(b))
+        r = np.concatenate((a, b), axis=None)
+        rout = np.concatenate((a, b), axis=None, out=out)
+        assert_(out is rout)
+        assert_equal(r, rout)
+
+    def test_large_concatenate_axis_None(self):
+        # When no axis is given, concatenate uses flattened versions.
+        # This also had a bug with many arrays (see gh-5979).
+        x = np.arange(1, 100)
+        r = np.concatenate(x, None)
+        assert_array_equal(x, r)
+
+        # Once upon a time, this was the same as `axis=None` now it fails
+        # (with an unspecified error, as multiple things are wrong here)
+        with pytest.raises(ValueError):
+            np.concatenate(x, 100)
+
+    def test_concatenate(self):
+        # Test concatenate function
+        # One sequence returns unmodified (but as array)
+        r4 = list(range(4))
+        assert_array_equal(concatenate((r4,)), r4)
+        # Any sequence
+        assert_array_equal(concatenate((tuple(r4),)), r4)
+        assert_array_equal(concatenate((array(r4),)), r4)
+        # 1D default concatenation
+        r3 = list(range(3))
+        assert_array_equal(concatenate((r4, r3)), r4 + r3)
+        # Mixed sequence types
+        assert_array_equal(concatenate((tuple(r4), r3)), r4 + r3)
+        assert_array_equal(concatenate((array(r4), r3)), r4 + r3)
+        # Explicit axis specification
+        assert_array_equal(concatenate((r4, r3), 0), r4 + r3)
+        # Including negative
+        assert_array_equal(concatenate((r4, r3), -1), r4 + r3)
+        # 2D
+        a23 = array([[10, 11, 12], [13, 14, 15]])
+        a13 = array([[0, 1, 2]])
+        res = array([[10, 11, 12], [13, 14, 15], [0, 1, 2]])
+        assert_array_equal(concatenate((a23, a13)), res)
+        assert_array_equal(concatenate((a23, a13), 0), res)
+        assert_array_equal(concatenate((a23.T, a13.T), 1), res.T)
+        assert_array_equal(concatenate((a23.T, a13.T), -1), res.T)
+        # Arrays much match shape
+        assert_raises(ValueError, concatenate, (a23.T, a13.T), 0)
+        # 3D
+        res = arange(2 * 3 * 7).reshape((2, 3, 7))
+        a0 = res[..., :4]
+        a1 = res[..., 4:6]
+        a2 = res[..., 6:]
+        assert_array_equal(concatenate((a0, a1, a2), 2), res)
+        assert_array_equal(concatenate((a0, a1, a2), -1), res)
+        assert_array_equal(concatenate((a0.T, a1.T, a2.T), 0), res.T)
+
+        out = res.copy()
+        rout = concatenate((a0, a1, a2), 2, out=out)
+        assert_(out is rout)
+        assert_equal(res, rout)
+
+    def test_concatenate_same_value(self):
+        r4 = list(range(4))
+        with pytest.raises(ValueError, match="^casting must be one of"):
+            concatenate([r4, r4], casting="same_value")
+
+    @pytest.mark.skipif(
+        IS_PYPY,
+        reason="PYPY handles sq_concat, nb_add differently than cpython"
+    )
+    def test_operator_concat(self):
+        import operator
+        a = array([1, 2])
+        b = array([3, 4])
+        n = [1, 2]
+        res = array([1, 2, 3, 4])
+        assert_raises(TypeError, operator.concat, a, b)
+        assert_raises(TypeError, operator.concat, a, n)
+        assert_raises(TypeError, operator.concat, n, a)
+        assert_raises(TypeError, operator.concat, a, 1)
+        assert_raises(TypeError, operator.concat, 1, a)
+
+    def test_bad_out_shape(self):
+        a = array([1, 2])
+        b = array([3, 4])
+
+        assert_raises(ValueError, concatenate, (a, b), out=np.empty(5))
+        assert_raises(ValueError, concatenate, (a, b), out=np.empty((4, 1)))
+        assert_raises(ValueError, concatenate, (a, b), out=np.empty((1, 4)))
+        concatenate((a, b), out=np.empty(4))
+
+    @pytest.mark.parametrize("axis", [None, 0])
+    @pytest.mark.parametrize("out_dtype", ["c8", "f4", "f8", ">f8", "i8", "S4"])
+    @pytest.mark.parametrize("casting",
+            ['no', 'equiv', 'safe', 'same_kind', 'unsafe'])
+    def test_out_and_dtype(self, axis, out_dtype, casting):
+        # Compare usage of `out=out` with `dtype=out.dtype`
+        out = np.empty(4, dtype=out_dtype)
+        to_concat = (array([1.1, 2.2]), array([3.3, 4.4]))
+
+        if not np.can_cast(to_concat[0], out_dtype, casting=casting):
+            with assert_raises(TypeError):
+                concatenate(to_concat, out=out, axis=axis, casting=casting)
+            with assert_raises(TypeError):
+                concatenate(to_concat, dtype=out.dtype,
+                            axis=axis, casting=casting)
+        else:
+            res_out = concatenate(to_concat, out=out,
+                                  axis=axis, casting=casting)
+            res_dtype = concatenate(to_concat, dtype=out.dtype,
+                                    axis=axis, casting=casting)
+            assert res_out is out
+            assert_array_equal(out, res_dtype)
+            assert res_dtype.dtype == out_dtype
+
+        with assert_raises(TypeError):
+            concatenate(to_concat, out=out, dtype=out_dtype, axis=axis)
+
+    @pytest.mark.parametrize("axis", [None, 0])
+    @pytest.mark.parametrize("string_dt", ["S", "U", "S0", "U0"])
+    @pytest.mark.parametrize("arrs",
+            [([0.],), ([0.], [1]), ([0], ["string"], [1.])])
+    def test_dtype_with_promotion(self, arrs, string_dt, axis):
+        # Note that U0 and S0 should be deprecated eventually and changed to
+        # actually give the empty string result (together with `np.array`)
+        res = np.concatenate(arrs, axis=axis, dtype=string_dt, casting="unsafe")
+        # The actual dtype should be identical to a cast (of a double array):
+        assert res.dtype == np.array(1.).astype(string_dt).dtype
+
+    @pytest.mark.parametrize("axis", [None, 0])
+    def test_string_dtype_does_not_inspect(self, axis):
+        with pytest.raises(TypeError):
+            np.concatenate(([None], [1]), dtype="S", axis=axis)
+        with pytest.raises(TypeError):
+            np.concatenate(([None], [1]), dtype="U", axis=axis)
+
+    @pytest.mark.parametrize("axis", [None, 0])
+    def test_subarray_error(self, axis):
+        with pytest.raises(TypeError, match=".*subarray dtype"):
+            np.concatenate(([1], [1]), dtype="(2,)i", axis=axis)
+
+
+def test_stack():
+    # non-iterable input
+    assert_raises(TypeError, stack, 1)
+
+    # 0d input
+    for input_ in [(1, 2, 3),
+                   [np.int32(1), np.int32(2), np.int32(3)],
+                   [np.array(1), np.array(2), np.array(3)]]:
+        assert_array_equal(stack(input_), [1, 2, 3])
+    # 1d input examples
+    a = np.array([1, 2, 3])
+    b = np.array([4, 5, 6])
+    r1 = array([[1, 2, 3], [4, 5, 6]])
+    assert_array_equal(np.stack((a, b)), r1)
+    assert_array_equal(np.stack((a, b), axis=1), r1.T)
+    # all input types
+    assert_array_equal(np.stack([a, b]), r1)
+    assert_array_equal(np.stack(array([a, b])), r1)
+    # all shapes for 1d input
+    arrays = [np.random.randn(3) for _ in range(10)]
+    axes = [0, 1, -1, -2]
+    expected_shapes = [(10, 3), (3, 10), (3, 10), (10, 3)]
+    for axis, expected_shape in zip(axes, expected_shapes):
+        assert_equal(np.stack(arrays, axis).shape, expected_shape)
+    assert_raises_regex(AxisError, 'out of bounds', stack, arrays, axis=2)
+    assert_raises_regex(AxisError, 'out of bounds', stack, arrays, axis=-3)
+    # all shapes for 2d input
+    arrays = [np.random.randn(3, 4) for _ in range(10)]
+    axes = [0, 1, 2, -1, -2, -3]
+    expected_shapes = [(10, 3, 4), (3, 10, 4), (3, 4, 10),
+                       (3, 4, 10), (3, 10, 4), (10, 3, 4)]
+    for axis, expected_shape in zip(axes, expected_shapes):
+        assert_equal(np.stack(arrays, axis).shape, expected_shape)
+    # empty arrays
+    assert_(stack([[], [], []]).shape == (3, 0))
+    assert_(stack([[], [], []], axis=1).shape == (0, 3))
+    # out
+    out = np.zeros_like(r1)
+    np.stack((a, b), out=out)
+    assert_array_equal(out, r1)
+    # edge cases
+    assert_raises_regex(ValueError, 'need at least one array', stack, [])
+    assert_raises_regex(ValueError, 'must have the same shape',
+                        stack, [1, np.arange(3)])
+    assert_raises_regex(ValueError, 'must have the same shape',
+                        stack, [np.arange(3), 1])
+    assert_raises_regex(ValueError, 'must have the same shape',
+                        stack, [np.arange(3), 1], axis=1)
+    assert_raises_regex(ValueError, 'must have the same shape',
+                        stack, [np.zeros((3, 3)), np.zeros(3)], axis=1)
+    assert_raises_regex(ValueError, 'must have the same shape',
+                        stack, [np.arange(2), np.arange(3)])
+
+    # do not accept generators
+    with pytest.raises(TypeError, match="arrays to stack must be"):
+        stack(x for x in range(3))
+
+    # casting and dtype test
+    a = np.array([1, 2, 3])
+    b = np.array([2.5, 3.5, 4.5])
+    res = np.stack((a, b), axis=1, casting="unsafe", dtype=np.int64)
+    expected_res = np.array([[1, 2], [2, 3], [3, 4]])
+    assert_array_equal(res, expected_res)
+    # casting and dtype with TypeError
+    with assert_raises(TypeError):
+        stack((a, b), dtype=np.int64, axis=1, casting="safe")
+
+
+def test_unstack():
+    a = np.arange(24).reshape((2, 3, 4))
+
+    for stacks in [np.unstack(a),
+                   np.unstack(a, axis=0),
+                   np.unstack(a, axis=-3)]:
+        assert isinstance(stacks, tuple)
+        assert len(stacks) == 2
+        assert_array_equal(stacks[0], a[0])
+        assert_array_equal(stacks[1], a[1])
+
+    for stacks in [np.unstack(a, axis=1),
+                   np.unstack(a, axis=-2)]:
+        assert isinstance(stacks, tuple)
+        assert len(stacks) == 3
+        assert_array_equal(stacks[0], a[:, 0])
+        assert_array_equal(stacks[1], a[:, 1])
+        assert_array_equal(stacks[2], a[:, 2])
+
+    for stacks in [np.unstack(a, axis=2),
+                   np.unstack(a, axis=-1)]:
+        assert isinstance(stacks, tuple)
+        assert len(stacks) == 4
+        assert_array_equal(stacks[0], a[:, :, 0])
+        assert_array_equal(stacks[1], a[:, :, 1])
+        assert_array_equal(stacks[2], a[:, :, 2])
+        assert_array_equal(stacks[3], a[:, :, 3])
+
+    assert_raises(ValueError, np.unstack, a, axis=3)
+    assert_raises(ValueError, np.unstack, a, axis=-4)
+    assert_raises(ValueError, np.unstack, np.array(0), axis=0)
+
+
+@pytest.mark.parametrize("axis", [0])
+@pytest.mark.parametrize("out_dtype", ["c8", "f4", "f8", ">f8", "i8"])
+@pytest.mark.parametrize("casting",
+                         ['no', 'equiv', 'safe', 'same_kind', 'unsafe'])
+def test_stack_out_and_dtype(axis, out_dtype, casting):
+    to_concat = (array([1, 2]), array([3, 4]))
+    res = array([[1, 2], [3, 4]])
+    out = np.zeros_like(res)
+
+    if not np.can_cast(to_concat[0], out_dtype, casting=casting):
+        with assert_raises(TypeError):
+            stack(to_concat, dtype=out_dtype,
+                  axis=axis, casting=casting)
+    else:
+        res_out = stack(to_concat, out=out,
+                        axis=axis, casting=casting)
+        res_dtype = stack(to_concat, dtype=out_dtype,
+                          axis=axis, casting=casting)
+        assert res_out is out
+        assert_array_equal(out, res_dtype)
+        assert res_dtype.dtype == out_dtype
+
+    with assert_raises(TypeError):
+        stack(to_concat, out=out, dtype=out_dtype, axis=axis)
+
+
+class TestBlock:
+    @pytest.fixture(params=['block', 'force_concatenate', 'force_slicing'])
+    def block(self, request):
+        # blocking small arrays and large arrays go through different paths.
+        # the algorithm is triggered depending on the number of element
+        # copies required.
+        # We define a test fixture that forces most tests to go through
+        # both code paths.
+        # Ultimately, this should be removed if a single algorithm is found
+        # to be faster for both small and large arrays.
+        def _block_force_concatenate(arrays):
+            arrays, list_ndim, result_ndim, _ = _block_setup(arrays)
+            return _block_concatenate(arrays, list_ndim, result_ndim)
+
+        def _block_force_slicing(arrays):
+            arrays, list_ndim, result_ndim, _ = _block_setup(arrays)
+            return _block_slicing(arrays, list_ndim, result_ndim)
+
+        if request.param == 'force_concatenate':
+            return _block_force_concatenate
+        elif request.param == 'force_slicing':
+            return _block_force_slicing
+        elif request.param == 'block':
+            return block
+        else:
+            raise ValueError('Unknown blocking request. There is a typo in the tests.')
+
+    def test_returns_copy(self, block):
+        a = np.eye(3)
+        b = block(a)
+        b[0, 0] = 2
+        assert b[0, 0] != a[0, 0]
+
+    def test_block_total_size_estimate(self, block):
+        _, _, _, total_size = _block_setup([1])
+        assert total_size == 1
+
+        _, _, _, total_size = _block_setup([[1]])
+        assert total_size == 1
+
+        _, _, _, total_size = _block_setup([[1, 1]])
+        assert total_size == 2
+
+        _, _, _, total_size = _block_setup([[1], [1]])
+        assert total_size == 2
+
+        _, _, _, total_size = _block_setup([[1, 2], [3, 4]])
+        assert total_size == 4
+
+    def test_block_simple_row_wise(self, block):
+        a_2d = np.ones((2, 2))
+        b_2d = 2 * a_2d
+        desired = np.array([[1, 1, 2, 2],
+                            [1, 1, 2, 2]])
+        result = block([a_2d, b_2d])
+        assert_equal(desired, result)
+
+    def test_block_simple_column_wise(self, block):
+        a_2d = np.ones((2, 2))
+        b_2d = 2 * a_2d
+        expected = np.array([[1, 1],
+                             [1, 1],
+                             [2, 2],
+                             [2, 2]])
+        result = block([[a_2d], [b_2d]])
+        assert_equal(expected, result)
+
+    def test_block_with_1d_arrays_row_wise(self, block):
+        # # # 1-D vectors are treated as row arrays
+        a = np.array([1, 2, 3])
+        b = np.array([2, 3, 4])
+        expected = np.array([1, 2, 3, 2, 3, 4])
+        result = block([a, b])
+        assert_equal(expected, result)
+
+    def test_block_with_1d_arrays_multiple_rows(self, block):
+        a = np.array([1, 2, 3])
+        b = np.array([2, 3, 4])
+        expected = np.array([[1, 2, 3, 2, 3, 4],
+                             [1, 2, 3, 2, 3, 4]])
+        result = block([[a, b], [a, b]])
+        assert_equal(expected, result)
+
+    def test_block_with_1d_arrays_column_wise(self, block):
+        # # # 1-D vectors are treated as row arrays
+        a_1d = np.array([1, 2, 3])
+        b_1d = np.array([2, 3, 4])
+        expected = np.array([[1, 2, 3],
+                             [2, 3, 4]])
+        result = block([[a_1d], [b_1d]])
+        assert_equal(expected, result)
+
+    def test_block_mixed_1d_and_2d(self, block):
+        a_2d = np.ones((2, 2))
+        b_1d = np.array([2, 2])
+        result = block([[a_2d], [b_1d]])
+        expected = np.array([[1, 1],
+                             [1, 1],
+                             [2, 2]])
+        assert_equal(expected, result)
+
+    def test_block_complicated(self, block):
+        # a bit more complicated
+        one_2d = np.array([[1, 1, 1]])
+        two_2d = np.array([[2, 2, 2]])
+        three_2d = np.array([[3, 3, 3, 3, 3, 3]])
+        four_1d = np.array([4, 4, 4, 4, 4, 4])
+        five_0d = np.array(5)
+        six_1d = np.array([6, 6, 6, 6, 6])
+        zero_2d = np.zeros((2, 6))
+
+        expected = np.array([[1, 1, 1, 2, 2, 2],
+                             [3, 3, 3, 3, 3, 3],
+                             [4, 4, 4, 4, 4, 4],
+                             [5, 6, 6, 6, 6, 6],
+                             [0, 0, 0, 0, 0, 0],
+                             [0, 0, 0, 0, 0, 0]])
+
+        result = block([[one_2d, two_2d],
+                        [three_2d],
+                        [four_1d],
+                        [five_0d, six_1d],
+                        [zero_2d]])
+        assert_equal(result, expected)
+
+    def test_nested(self, block):
+        one = np.array([1, 1, 1])
+        two = np.array([[2, 2, 2], [2, 2, 2], [2, 2, 2]])
+        three = np.array([3, 3, 3])
+        four = np.array([4, 4, 4])
+        five = np.array(5)
+        six = np.array([6, 6, 6, 6, 6])
+        zero = np.zeros((2, 6))
+
+        result = block([
+            [
+                block([
+                   [one],
+                   [three],
+                   [four]
+                ]),
+                two
+            ],
+            [five, six],
+            [zero]
+        ])
+        expected = np.array([[1, 1, 1, 2, 2, 2],
+                             [3, 3, 3, 2, 2, 2],
+                             [4, 4, 4, 2, 2, 2],
+                             [5, 6, 6, 6, 6, 6],
+                             [0, 0, 0, 0, 0, 0],
+                             [0, 0, 0, 0, 0, 0]])
+
+        assert_equal(result, expected)
+
+    def test_3d(self, block):
+        a000 = np.ones((2, 2, 2), int) * 1
+
+        a100 = np.ones((3, 2, 2), int) * 2
+        a010 = np.ones((2, 3, 2), int) * 3
+        a001 = np.ones((2, 2, 3), int) * 4
+
+        a011 = np.ones((2, 3, 3), int) * 5
+        a101 = np.ones((3, 2, 3), int) * 6
+        a110 = np.ones((3, 3, 2), int) * 7
+
+        a111 = np.ones((3, 3, 3), int) * 8
+
+        result = block([
+            [
+                [a000, a001],
+                [a010, a011],
+            ],
+            [
+                [a100, a101],
+                [a110, a111],
+            ]
+        ])
+        expected = array([[[1, 1, 4, 4, 4],
+                           [1, 1, 4, 4, 4],
+                           [3, 3, 5, 5, 5],
+                           [3, 3, 5, 5, 5],
+                           [3, 3, 5, 5, 5]],
+
+                          [[1, 1, 4, 4, 4],
+                           [1, 1, 4, 4, 4],
+                           [3, 3, 5, 5, 5],
+                           [3, 3, 5, 5, 5],
+                           [3, 3, 5, 5, 5]],
+
+                          [[2, 2, 6, 6, 6],
+                           [2, 2, 6, 6, 6],
+                           [7, 7, 8, 8, 8],
+                           [7, 7, 8, 8, 8],
+                           [7, 7, 8, 8, 8]],
+
+                          [[2, 2, 6, 6, 6],
+                           [2, 2, 6, 6, 6],
+                           [7, 7, 8, 8, 8],
+                           [7, 7, 8, 8, 8],
+                           [7, 7, 8, 8, 8]],
+
+                          [[2, 2, 6, 6, 6],
+                           [2, 2, 6, 6, 6],
+                           [7, 7, 8, 8, 8],
+                           [7, 7, 8, 8, 8],
+                           [7, 7, 8, 8, 8]]])
+
+        assert_array_equal(result, expected)
+
+    def test_block_with_mismatched_shape(self, block):
+        a = np.array([0, 0])
+        b = np.eye(2)
+        assert_raises(ValueError, block, [a, b])
+        assert_raises(ValueError, block, [b, a])
+
+        to_block = [[np.ones((2, 3)), np.ones((2, 2))],
+                    [np.ones((2, 2)), np.ones((2, 2))]]
+        assert_raises(ValueError, block, to_block)
+
+    def test_no_lists(self, block):
+        assert_equal(block(1),         np.array(1))
+        assert_equal(block(np.eye(3)), np.eye(3))
+
+    def test_invalid_nesting(self, block):
+        msg = 'depths are mismatched'
+        assert_raises_regex(ValueError, msg, block, [1, [2]])
+        assert_raises_regex(ValueError, msg, block, [1, []])
+        assert_raises_regex(ValueError, msg, block, [[1], 2])
+        assert_raises_regex(ValueError, msg, block, [[], 2])
+        assert_raises_regex(ValueError, msg, block, [
+            [[1], [2]],
+            [[3, 4]],
+            [5]  # missing brackets
+        ])
+
+    def test_empty_lists(self, block):
+        assert_raises_regex(ValueError, 'empty', block, [])
+        assert_raises_regex(ValueError, 'empty', block, [[]])
+        assert_raises_regex(ValueError, 'empty', block, [[1], []])
+
+    def test_tuple(self, block):
+        assert_raises_regex(TypeError, 'tuple', block, ([1, 2], [3, 4]))
+        assert_raises_regex(TypeError, 'tuple', block, [(1, 2), (3, 4)])
+
+    def test_different_ndims(self, block):
+        a = 1.
+        b = 2 * np.ones((1, 2))
+        c = 3 * np.ones((1, 1, 3))
+
+        result = block([a, b, c])
+        expected = np.array([[[1., 2., 2., 3., 3., 3.]]])
+
+        assert_equal(result, expected)
+
+    def test_different_ndims_depths(self, block):
+        a = 1.
+        b = 2 * np.ones((1, 2))
+        c = 3 * np.ones((1, 2, 3))
+
+        result = block([[a, b], [c]])
+        expected = np.array([[[1., 2., 2.],
+                              [3., 3., 3.],
+                              [3., 3., 3.]]])
+
+        assert_equal(result, expected)
+
+    def test_block_memory_order(self, block):
+        # 3D
+        arr_c = np.zeros((3,) * 3, order='C')
+        arr_f = np.zeros((3,) * 3, order='F')
+
+        b_c = [[[arr_c, arr_c],
+                [arr_c, arr_c]],
+               [[arr_c, arr_c],
+                [arr_c, arr_c]]]
+
+        b_f = [[[arr_f, arr_f],
+                [arr_f, arr_f]],
+               [[arr_f, arr_f],
+                [arr_f, arr_f]]]
+
+        assert block(b_c).flags['C_CONTIGUOUS']
+        assert block(b_f).flags['F_CONTIGUOUS']
+
+        arr_c = np.zeros((3, 3), order='C')
+        arr_f = np.zeros((3, 3), order='F')
+        # 2D
+        b_c = [[arr_c, arr_c],
+               [arr_c, arr_c]]
+
+        b_f = [[arr_f, arr_f],
+               [arr_f, arr_f]]
+
+        assert block(b_c).flags['C_CONTIGUOUS']
+        assert block(b_f).flags['F_CONTIGUOUS']
+
+
+def test_block_dispatcher():
+    class ArrayLike:
+        pass
+    a = ArrayLike()
+    b = ArrayLike()
+    c = ArrayLike()
+    assert_equal(list(_block_dispatcher(a)), [a])
+    assert_equal(list(_block_dispatcher([a])), [a])
+    assert_equal(list(_block_dispatcher([a, b])), [a, b])
+    assert_equal(list(_block_dispatcher([[a], [b, [c]]])), [a, b, c])
+    # don't recurse into non-lists
+    assert_equal(list(_block_dispatcher((a, b))), [(a, b)])
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_simd.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_simd.py
new file mode 100644
index 0000000000000000000000000000000000000000..9bcd1f62fb87868564625d1d94bcb1381a34deb8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_simd.py
@@ -0,0 +1,1345 @@
+# NOTE: Please avoid the use of numpy.testing since NPYV intrinsics
+# may be involved in their functionality.
+import itertools
+import math
+import operator
+import re
+
+import pytest
+
+from numpy._core._multiarray_umath import __cpu_baseline__
+from numpy._core._simd import clear_floatstatus, get_floatstatus, targets
+
+
+def check_floatstatus(divbyzero=False, overflow=False,
+                      underflow=False, invalid=False,
+                      all=False):
+    #define NPY_FPE_DIVIDEBYZERO  1
+    #define NPY_FPE_OVERFLOW      2
+    #define NPY_FPE_UNDERFLOW     4
+    #define NPY_FPE_INVALID       8
+    err = get_floatstatus()
+    ret = (all or divbyzero) and (err & 1) != 0
+    ret |= (all or overflow) and (err & 2) != 0
+    ret |= (all or underflow) and (err & 4) != 0
+    ret |= (all or invalid) and (err & 8) != 0
+    return ret
+
+class _Test_Utility:
+    # submodule of the desired SIMD extension, e.g. targets["AVX512F"]
+    npyv = None
+    # the current data type suffix e.g. 's8'
+    sfx = None
+    # target name can be 'baseline' or one or more of CPU features
+    target_name = None
+
+    def __getattr__(self, attr):
+        """
+        To call NPV intrinsics without the attribute 'npyv' and
+        auto suffixing intrinsics according to class attribute 'sfx'
+        """
+        return getattr(self.npyv, attr + "_" + self.sfx)
+
+    def _x2(self, intrin_name):
+        return getattr(self.npyv, f"{intrin_name}_{self.sfx}x2")
+
+    def _data(self, start=None, count=None, reverse=False):
+        """
+        Create list of consecutive numbers according to number of vector's lanes.
+        """
+        if start is None:
+            start = 1
+        if count is None:
+            count = self.nlanes
+        rng = range(start, start + count)
+        if reverse:
+            rng = reversed(rng)
+        if self._is_fp():
+            return [x / 1.0 for x in rng]
+        return list(rng)
+
+    def _is_unsigned(self):
+        return self.sfx[0] == 'u'
+
+    def _is_signed(self):
+        return self.sfx[0] == 's'
+
+    def _is_fp(self):
+        return self.sfx[0] == 'f'
+
+    def _scalar_size(self):
+        return int(self.sfx[1:])
+
+    def _int_clip(self, seq):
+        if self._is_fp():
+            return seq
+        max_int = self._int_max()
+        min_int = self._int_min()
+        return [min(max(v, min_int), max_int) for v in seq]
+
+    def _int_max(self):
+        if self._is_fp():
+            return None
+        max_u = self._to_unsigned(self.setall(-1))[0]
+        if self._is_signed():
+            return max_u // 2
+        return max_u
+
+    def _int_min(self):
+        if self._is_fp():
+            return None
+        if self._is_unsigned():
+            return 0
+        return -(self._int_max() + 1)
+
+    def _true_mask(self):
+        max_unsig = getattr(self.npyv, "setall_u" + self.sfx[1:])(-1)
+        return max_unsig[0]
+
+    def _to_unsigned(self, vector):
+        if isinstance(vector, (list, tuple)):
+            return getattr(self.npyv, "load_u" + self.sfx[1:])(vector)
+        else:
+            sfx = vector.__name__.replace("npyv_", "")
+            if sfx[0] == "b":
+                cvt_intrin = "cvt_u{0}_b{0}"
+            else:
+                cvt_intrin = "reinterpret_u{0}_{1}"
+            return getattr(self.npyv, cvt_intrin.format(sfx[1:], sfx))(vector)
+
+    def _pinfinity(self):
+        return float("inf")
+
+    def _ninfinity(self):
+        return -float("inf")
+
+    def _nan(self):
+        return float("nan")
+
+    def _cpu_features(self):
+        target = self.target_name
+        if target == "baseline":
+            target = __cpu_baseline__
+        else:
+            target = target.split('__')  # multi-target separator
+        return ' '.join(target)
+
+class _SIMD_BOOL(_Test_Utility):
+    """
+    To test all boolean vector types at once
+    """
+    def _nlanes(self):
+        return getattr(self.npyv, "nlanes_u" + self.sfx[1:])
+
+    def _data(self, start=None, count=None, reverse=False):
+        true_mask = self._true_mask()
+        rng = range(self._nlanes())
+        if reverse:
+            rng = reversed(rng)
+        return [true_mask if x % 2 else 0 for x in rng]
+
+    def _load_b(self, data):
+        len_str = self.sfx[1:]
+        load = getattr(self.npyv, "load_u" + len_str)
+        cvt = getattr(self.npyv, f"cvt_b{len_str}_u{len_str}")
+        return cvt(load(data))
+
+    def test_operators_logical(self):
+        """
+        Logical operations for boolean types.
+        Test intrinsics:
+            npyv_xor_##SFX, npyv_and_##SFX, npyv_or_##SFX, npyv_not_##SFX,
+            npyv_andc_b8, npvy_orc_b8, nvpy_xnor_b8
+        """
+        data_a = self._data()
+        data_b = self._data(reverse=True)
+        vdata_a = self._load_b(data_a)
+        vdata_b = self._load_b(data_b)
+
+        data_and = [a & b for a, b in zip(data_a, data_b)]
+        vand = getattr(self, "and")(vdata_a, vdata_b)
+        assert vand == data_and
+
+        data_or = [a | b for a, b in zip(data_a, data_b)]
+        vor = getattr(self, "or")(vdata_a, vdata_b)
+        assert vor == data_or
+
+        data_xor = [a ^ b for a, b in zip(data_a, data_b)]
+        vxor = self.xor(vdata_a, vdata_b)
+        assert vxor == data_xor
+
+        vnot = getattr(self, "not")(vdata_a)
+        assert vnot == data_b
+
+        # among the boolean types, andc, orc and xnor only support b8
+        if self.sfx not in ("b8"):
+            return
+
+        data_andc = [(a & ~b) & 0xFF for a, b in zip(data_a, data_b)]
+        vandc = self.andc(vdata_a, vdata_b)
+        assert data_andc == vandc
+
+        data_orc = [(a | ~b) & 0xFF for a, b in zip(data_a, data_b)]
+        vorc = self.orc(vdata_a, vdata_b)
+        assert data_orc == vorc
+
+        data_xnor = [~(a ^ b) & 0xFF for a, b in zip(data_a, data_b)]
+        vxnor = self.xnor(vdata_a, vdata_b)
+        assert data_xnor == vxnor
+
+    def test_tobits(self):
+        data2bits = lambda data: sum(int(x != 0) << i for i, x in enumerate(data, 0))
+        for data in (self._data(), self._data(reverse=True)):
+            vdata = self._load_b(data)
+            data_bits = data2bits(data)
+            tobits = self.tobits(vdata)
+            bin_tobits = bin(tobits)
+            assert bin_tobits == bin(data_bits)
+
+    def test_pack(self):
+        """
+        Pack multiple vectors into one
+        Test intrinsics:
+            npyv_pack_b8_b16
+            npyv_pack_b8_b32
+            npyv_pack_b8_b64
+        """
+        if self.sfx not in ("b16", "b32", "b64"):
+            return
+        # create the vectors
+        data = self._data()
+        rdata = self._data(reverse=True)
+        vdata = self._load_b(data)
+        vrdata = self._load_b(rdata)
+        pack_simd = getattr(self.npyv, f"pack_b8_{self.sfx}")
+        # for scalar execution, concatenate the elements of the multiple lists
+        # into a single list (spack) and then iterate over the elements of
+        # the created list applying a mask to capture the first byte of them.
+        if self.sfx == "b16":
+            spack = [(i & 0xFF) for i in (list(rdata) + list(data))]
+            vpack = pack_simd(vrdata, vdata)
+        elif self.sfx == "b32":
+            spack = [(i & 0xFF) for i in (2 * list(rdata) + 2 * list(data))]
+            vpack = pack_simd(vrdata, vrdata, vdata, vdata)
+        elif self.sfx == "b64":
+            spack = [(i & 0xFF) for i in (4 * list(rdata) + 4 * list(data))]
+            vpack = pack_simd(vrdata, vrdata, vrdata, vrdata,
+                               vdata,  vdata,  vdata,  vdata)
+        assert vpack == spack
+
+    @pytest.mark.parametrize("intrin", ["any", "all"])
+    @pytest.mark.parametrize("data", (
+        [-1, 0],
+        [0, -1],
+        [-1],
+        [0]
+    ))
+    def test_operators_crosstest(self, intrin, data):
+        """
+        Test intrinsics:
+            npyv_any_##SFX
+            npyv_all_##SFX
+        """
+        data_a = self._load_b(data * self._nlanes())
+        func = eval(intrin)
+        intrin = getattr(self, intrin)
+        desired = func(data_a)
+        simd = intrin(data_a)
+        assert not not simd == desired
+
+class _SIMD_INT(_Test_Utility):
+    """
+    To test all integer vector types at once
+    """
+    def test_operators_shift(self):
+        if self.sfx in ("u8", "s8"):
+            return
+
+        data_a = self._data(self._int_max() - self.nlanes)
+        data_b = self._data(self._int_min(), reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        for count in range(self._scalar_size()):
+            # load to cast
+            data_shl_a = self.load([a << count for a in data_a])
+            # left shift
+            shl = self.shl(vdata_a, count)
+            assert shl == data_shl_a
+            # load to cast
+            data_shr_a = self.load([a >> count for a in data_a])
+            # right shift
+            shr = self.shr(vdata_a, count)
+            assert shr == data_shr_a
+
+        # shift by zero or max or out-range immediate constant is not
+        # applicable and illogical
+        for count in range(1, self._scalar_size()):
+            # load to cast
+            data_shl_a = self.load([a << count for a in data_a])
+            # left shift by an immediate constant
+            shli = self.shli(vdata_a, count)
+            assert shli == data_shl_a
+            # load to cast
+            data_shr_a = self.load([a >> count for a in data_a])
+            # right shift by an immediate constant
+            shri = self.shri(vdata_a, count)
+            assert shri == data_shr_a
+
+    def test_arithmetic_subadd_saturated(self):
+        if self.sfx in ("u32", "s32", "u64", "s64"):
+            return
+
+        data_a = self._data(self._int_max() - self.nlanes)
+        data_b = self._data(self._int_min(), reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        data_adds = self._int_clip([a + b for a, b in zip(data_a, data_b)])
+        adds = self.adds(vdata_a, vdata_b)
+        assert adds == data_adds
+
+        data_subs = self._int_clip([a - b for a, b in zip(data_a, data_b)])
+        subs = self.subs(vdata_a, vdata_b)
+        assert subs == data_subs
+
+    def test_math_max_min(self):
+        data_a = self._data()
+        data_b = self._data(self.nlanes)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        data_max = [max(a, b) for a, b in zip(data_a, data_b)]
+        simd_max = self.max(vdata_a, vdata_b)
+        assert simd_max == data_max
+
+        data_min = [min(a, b) for a, b in zip(data_a, data_b)]
+        simd_min = self.min(vdata_a, vdata_b)
+        assert simd_min == data_min
+
+    @pytest.mark.parametrize("start", [-100, -10000, 0, 100, 10000])
+    def test_reduce_max_min(self, start):
+        """
+        Test intrinsics:
+            npyv_reduce_max_##sfx
+            npyv_reduce_min_##sfx
+        """
+        vdata_a = self.load(self._data(start))
+        assert self.reduce_max(vdata_a) == max(vdata_a)
+        assert self.reduce_min(vdata_a) == min(vdata_a)
+
+
+class _SIMD_FP32(_Test_Utility):
+    """
+    To only test single precision
+    """
+    def test_conversions(self):
+        """
+        Round to nearest even integer, assume CPU control register is set to rounding.
+        Test intrinsics:
+            npyv_round_s32_##SFX
+        """
+        features = self._cpu_features()
+        if not self.npyv.simd_f64 and re.match(r".*(NEON|ASIMD)", features):
+            # very costly to emulate nearest even on Armv7
+            # instead we round halves to up. e.g. 0.5 -> 1, -0.5 -> -1
+            _round = lambda v: int(v + (0.5 if v >= 0 else -0.5))
+        else:
+            _round = round
+        vdata_a = self.load(self._data())
+        vdata_a = self.sub(vdata_a, self.setall(0.5))
+        data_round = [_round(x) for x in vdata_a]
+        vround = self.round_s32(vdata_a)
+        assert vround == data_round
+
+class _SIMD_FP64(_Test_Utility):
+    """
+    To only test double precision
+    """
+    def test_conversions(self):
+        """
+        Round to nearest even integer, assume CPU control register is set to rounding.
+        Test intrinsics:
+            npyv_round_s32_##SFX
+        """
+        vdata_a = self.load(self._data())
+        vdata_a = self.sub(vdata_a, self.setall(0.5))
+        vdata_b = self.mul(vdata_a, self.setall(-1.5))
+        data_round = [round(x) for x in list(vdata_a) + list(vdata_b)]
+        vround = self.round_s32(vdata_a, vdata_b)
+        assert vround == data_round
+
+class _SIMD_FP(_Test_Utility):
+    """
+    To test all float vector types at once
+    """
+    def test_arithmetic_fused(self):
+        vdata_a, vdata_b, vdata_c = [self.load(self._data())] * 3
+        vdata_cx2 = self.add(vdata_c, vdata_c)
+        # multiply and add, a*b + c
+        data_fma = self.load([a * b + c for a, b, c in zip(vdata_a, vdata_b, vdata_c)])
+        fma = self.muladd(vdata_a, vdata_b, vdata_c)
+        assert fma == data_fma
+        # multiply and subtract, a*b - c
+        fms = self.mulsub(vdata_a, vdata_b, vdata_c)
+        data_fms = self.sub(data_fma, vdata_cx2)
+        assert fms == data_fms
+        # negate multiply and add, -(a*b) + c
+        nfma = self.nmuladd(vdata_a, vdata_b, vdata_c)
+        data_nfma = self.sub(vdata_cx2, data_fma)
+        assert nfma == data_nfma
+        # negate multiply and subtract, -(a*b) - c
+        nfms = self.nmulsub(vdata_a, vdata_b, vdata_c)
+        data_nfms = self.mul(data_fma, self.setall(-1))
+        assert nfms == data_nfms
+        # multiply, add for odd elements and subtract even elements.
+        # (a * b) -+ c
+        fmas = list(self.muladdsub(vdata_a, vdata_b, vdata_c))
+        assert fmas[0::2] == list(data_fms)[0::2]
+        assert fmas[1::2] == list(data_fma)[1::2]
+
+    def test_abs(self):
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        data = self._data()
+        vdata = self.load(self._data())
+
+        abs_cases = ((-0, 0), (ninf, pinf), (pinf, pinf), (nan, nan))
+        for case, desired in abs_cases:
+            data_abs = [desired] * self.nlanes
+            vabs = self.abs(self.setall(case))
+            assert vabs == pytest.approx(data_abs, nan_ok=True)
+
+        vabs = self.abs(self.mul(vdata, self.setall(-1)))
+        assert vabs == data
+
+    def test_sqrt(self):
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        data = self._data()
+        vdata = self.load(self._data())
+
+        sqrt_cases = ((-0.0, -0.0), (0.0, 0.0), (-1.0, nan), (ninf, nan), (pinf, pinf))
+        for case, desired in sqrt_cases:
+            data_sqrt = [desired] * self.nlanes
+            sqrt = self.sqrt(self.setall(case))
+            assert sqrt == pytest.approx(data_sqrt, nan_ok=True)
+
+        # load to truncate precision
+        data_sqrt = self.load([math.sqrt(x) for x in data])
+        sqrt = self.sqrt(vdata)
+        assert sqrt == data_sqrt
+
+    def test_square(self):
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        data = self._data()
+        vdata = self.load(self._data())
+        # square
+        square_cases = ((nan, nan), (pinf, pinf), (ninf, pinf))
+        for case, desired in square_cases:
+            data_square = [desired] * self.nlanes
+            square = self.square(self.setall(case))
+            assert square == pytest.approx(data_square, nan_ok=True)
+
+        data_square = [x * x for x in data]
+        square = self.square(vdata)
+        assert square == data_square
+
+    @pytest.mark.parametrize("intrin, func", [("ceil", math.ceil),
+    ("trunc", math.trunc), ("floor", math.floor), ("rint", round)])
+    def test_rounding(self, intrin, func):
+        """
+        Test intrinsics:
+            npyv_rint_##SFX
+            npyv_ceil_##SFX
+            npyv_trunc_##SFX
+            npyv_floor##SFX
+        """
+        intrin_name = intrin
+        intrin = getattr(self, intrin)
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        # special cases
+        round_cases = ((nan, nan), (pinf, pinf), (ninf, ninf))
+        for case, desired in round_cases:
+            data_round = [desired] * self.nlanes
+            _round = intrin(self.setall(case))
+            assert _round == pytest.approx(data_round, nan_ok=True)
+
+        for x in range(0, 2**20, 256**2):
+            for w in (-1.05, -1.10, -1.15, 1.05, 1.10, 1.15):
+                data = self.load([(x + a) * w for a in range(self.nlanes)])
+                data_round = [func(x) for x in data]
+                _round = intrin(data)
+                assert _round == data_round
+
+        # test large numbers
+        for i in (
+            1.1529215045988576e+18, 4.6116860183954304e+18,
+            5.902958103546122e+20, 2.3611832414184488e+21
+        ):
+            x = self.setall(i)
+            y = intrin(x)
+            data_round = [func(n) for n in x]
+            assert y == data_round
+
+        # signed zero
+        if intrin_name == "floor":
+            data_szero = (-0.0,)
+        else:
+            data_szero = (-0.0, -0.25, -0.30, -0.45, -0.5)
+
+        for w in data_szero:
+            _round = self._to_unsigned(intrin(self.setall(w)))
+            data_round = self._to_unsigned(self.setall(-0.0))
+            assert _round == data_round
+
+    @pytest.mark.parametrize("intrin", [
+        "max", "maxp", "maxn", "min", "minp", "minn"
+    ])
+    def test_max_min(self, intrin):
+        """
+        Test intrinsics:
+            npyv_max_##sfx
+            npyv_maxp_##sfx
+            npyv_maxn_##sfx
+            npyv_min_##sfx
+            npyv_minp_##sfx
+            npyv_minn_##sfx
+            npyv_reduce_max_##sfx
+            npyv_reduce_maxp_##sfx
+            npyv_reduce_maxn_##sfx
+            npyv_reduce_min_##sfx
+            npyv_reduce_minp_##sfx
+            npyv_reduce_minn_##sfx
+        """
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        chk_nan = {"xp": 1, "np": 1, "nn": 2, "xn": 2}.get(intrin[-2:], 0)
+        func = eval(intrin[:3])
+        reduce_intrin = getattr(self, "reduce_" + intrin)
+        intrin = getattr(self, intrin)
+        hf_nlanes = self.nlanes // 2
+
+        cases = (
+            ([0.0, -0.0], [-0.0, 0.0]),
+            ([10, -10],  [10, -10]),
+            ([pinf, 10], [10, ninf]),
+            ([10, pinf], [ninf, 10]),
+            ([10, -10], [10, -10]),
+            ([-10, 10], [-10, 10])
+        )
+        for op1, op2 in cases:
+            vdata_a = self.load(op1 * hf_nlanes)
+            vdata_b = self.load(op2 * hf_nlanes)
+            data = func(vdata_a, vdata_b)
+            simd = intrin(vdata_a, vdata_b)
+            assert simd == data
+            data = func(vdata_a)
+            simd = reduce_intrin(vdata_a)
+            assert simd == data
+
+        if not chk_nan:
+            return
+        if chk_nan == 1:
+            test_nan = lambda a, b: (
+                b if math.isnan(a) else a if math.isnan(b) else b
+            )
+        else:
+            test_nan = lambda a, b: (
+                nan if math.isnan(a) or math.isnan(b) else b
+            )
+        cases = (
+            (nan, 10),
+            (10, nan),
+            (nan, pinf),
+            (pinf, nan),
+            (nan, nan)
+        )
+        for op1, op2 in cases:
+            vdata_ab = self.load([op1, op2] * hf_nlanes)
+            data = test_nan(op1, op2)
+            simd = reduce_intrin(vdata_ab)
+            assert simd == pytest.approx(data, nan_ok=True)
+            vdata_a = self.setall(op1)
+            vdata_b = self.setall(op2)
+            data = [data] * self.nlanes
+            simd = intrin(vdata_a, vdata_b)
+            assert simd == pytest.approx(data, nan_ok=True)
+
+    def test_reciprocal(self):
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        data = self._data()
+        vdata = self.load(self._data())
+
+        recip_cases = ((nan, nan), (pinf, 0.0), (ninf, -0.0), (0.0, pinf), (-0.0, ninf))
+        for case, desired in recip_cases:
+            data_recip = [desired] * self.nlanes
+            recip = self.recip(self.setall(case))
+            assert recip == pytest.approx(data_recip, nan_ok=True)
+
+        data_recip = self.load([1 / x for x in data])  # load to truncate precision
+        recip = self.recip(vdata)
+        assert recip == data_recip
+
+    def test_special_cases(self):
+        """
+        Compare Not NaN. Test intrinsics:
+            npyv_notnan_##SFX
+        """
+        nnan = self.notnan(self.setall(self._nan()))
+        assert nnan == [0] * self.nlanes
+
+    @pytest.mark.parametrize("intrin_name", [
+        "rint", "trunc", "ceil", "floor"
+    ])
+    def test_unary_invalid_fpexception(self, intrin_name):
+        intrin = getattr(self, intrin_name)
+        for d in [float("nan"), float("inf"), -float("inf")]:
+            v = self.setall(d)
+            clear_floatstatus()
+            intrin(v)
+            assert check_floatstatus(invalid=True) is False
+
+    @pytest.mark.parametrize('py_comp,np_comp', [
+        (operator.lt, "cmplt"),
+        (operator.le, "cmple"),
+        (operator.gt, "cmpgt"),
+        (operator.ge, "cmpge"),
+        (operator.eq, "cmpeq"),
+        (operator.ne, "cmpneq")
+    ])
+    def test_comparison_with_nan(self, py_comp, np_comp):
+        pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan()
+        mask_true = self._true_mask()
+
+        def to_bool(vector):
+            return [lane == mask_true for lane in vector]
+
+        intrin = getattr(self, np_comp)
+        cmp_cases = ((0, nan), (nan, 0), (nan, nan), (pinf, nan),
+                     (ninf, nan), (-0.0, +0.0))
+        for case_operand1, case_operand2 in cmp_cases:
+            data_a = [case_operand1] * self.nlanes
+            data_b = [case_operand2] * self.nlanes
+            vdata_a = self.setall(case_operand1)
+            vdata_b = self.setall(case_operand2)
+            vcmp = to_bool(intrin(vdata_a, vdata_b))
+            data_cmp = [py_comp(a, b) for a, b in zip(data_a, data_b)]
+            assert vcmp == data_cmp
+
+    @pytest.mark.parametrize("intrin", ["any", "all"])
+    @pytest.mark.parametrize("data", (
+        [float("nan"), 0],
+        [0, float("nan")],
+        [float("nan"), 1],
+        [1, float("nan")],
+        [float("nan"), float("nan")],
+        [0.0, -0.0],
+        [-0.0, 0.0],
+        [1.0, -0.0]
+    ))
+    def test_operators_crosstest(self, intrin, data):
+        """
+        Test intrinsics:
+            npyv_any_##SFX
+            npyv_all_##SFX
+        """
+        data_a = self.load(data * self.nlanes)
+        func = eval(intrin)
+        intrin = getattr(self, intrin)
+        desired = func(data_a)
+        simd = intrin(data_a)
+        assert not not simd == desired
+
+class _SIMD_ALL(_Test_Utility):
+    """
+    To test all vector types at once
+    """
+    def test_memory_load(self):
+        data = self._data()
+        # unaligned load
+        load_data = self.load(data)
+        assert load_data == data
+        # aligned load
+        loada_data = self.loada(data)
+        assert loada_data == data
+        # stream load
+        loads_data = self.loads(data)
+        assert loads_data == data
+        # load lower part
+        loadl = self.loadl(data)
+        loadl_half = list(loadl)[:self.nlanes // 2]
+        data_half = data[:self.nlanes // 2]
+        assert loadl_half == data_half
+        assert loadl != data  # detect overflow
+
+    def test_memory_store(self):
+        data = self._data()
+        vdata = self.load(data)
+        # unaligned store
+        store = [0] * self.nlanes
+        self.store(store, vdata)
+        assert store == data
+        # aligned store
+        store_a = [0] * self.nlanes
+        self.storea(store_a, vdata)
+        assert store_a == data
+        # stream store
+        store_s = [0] * self.nlanes
+        self.stores(store_s, vdata)
+        assert store_s == data
+        # store lower part
+        store_l = [0] * self.nlanes
+        self.storel(store_l, vdata)
+        assert store_l[:self.nlanes // 2] == data[:self.nlanes // 2]
+        assert store_l != vdata  # detect overflow
+        # store higher part
+        store_h = [0] * self.nlanes
+        self.storeh(store_h, vdata)
+        assert store_h[:self.nlanes // 2] == data[self.nlanes // 2:]
+        assert store_h != vdata  # detect overflow
+
+    @pytest.mark.parametrize("intrin, elsizes, scale, fill", [
+        ("self.load_tillz, self.load_till", (32, 64), 1, [0xffff]),
+        ("self.load2_tillz, self.load2_till", (32, 64), 2, [0xffff, 0x7fff]),
+    ])
+    def test_memory_partial_load(self, intrin, elsizes, scale, fill):
+        if self._scalar_size() not in elsizes:
+            return
+        npyv_load_tillz, npyv_load_till = eval(intrin)
+        data = self._data()
+        lanes = list(range(1, self.nlanes + 1))
+        lanes += [self.nlanes**2, self.nlanes**4]  # test out of range
+        for n in lanes:
+            load_till = npyv_load_till(data, n, *fill)
+            load_tillz = npyv_load_tillz(data, n)
+            n *= scale
+            data_till = data[:n] + fill * ((self.nlanes - n) // scale)
+            assert load_till == data_till
+            data_tillz = data[:n] + [0] * (self.nlanes - n)
+            assert load_tillz == data_tillz
+
+    @pytest.mark.parametrize("intrin, elsizes, scale", [
+        ("self.store_till", (32, 64), 1),
+        ("self.store2_till", (32, 64), 2),
+    ])
+    def test_memory_partial_store(self, intrin, elsizes, scale):
+        if self._scalar_size() not in elsizes:
+            return
+        npyv_store_till = eval(intrin)
+        data = self._data()
+        data_rev = self._data(reverse=True)
+        vdata = self.load(data)
+        lanes = list(range(1, self.nlanes + 1))
+        lanes += [self.nlanes**2, self.nlanes**4]
+        for n in lanes:
+            data_till = data_rev.copy()
+            data_till[:n * scale] = data[:n * scale]
+            store_till = self._data(reverse=True)
+            npyv_store_till(store_till, n, vdata)
+            assert store_till == data_till
+
+    @pytest.mark.parametrize("intrin, elsizes, scale", [
+        ("self.loadn", (32, 64), 1),
+        ("self.loadn2", (32, 64), 2),
+    ])
+    def test_memory_noncont_load(self, intrin, elsizes, scale):
+        if self._scalar_size() not in elsizes:
+            return
+        npyv_loadn = eval(intrin)
+        for stride in range(-64, 64):
+            if stride < 0:
+                data = self._data(stride, -stride * self.nlanes)
+                data_stride = list(itertools.chain(
+                    *zip(*[data[-i::stride] for i in range(scale, 0, -1)])
+                ))
+            elif stride == 0:
+                data = self._data()
+                data_stride = data[0:scale] * (self.nlanes // scale)
+            else:
+                data = self._data(count=stride * self.nlanes)
+                data_stride = list(itertools.chain(
+                    *zip(*[data[i::stride] for i in range(scale)]))
+                )
+            data_stride = self.load(data_stride)  # cast unsigned
+            loadn = npyv_loadn(data, stride)
+            assert loadn == data_stride
+
+    @pytest.mark.parametrize("intrin, elsizes, scale, fill", [
+        ("self.loadn_tillz, self.loadn_till", (32, 64), 1, [0xffff]),
+        ("self.loadn2_tillz, self.loadn2_till", (32, 64), 2, [0xffff, 0x7fff]),
+    ])
+    def test_memory_noncont_partial_load(self, intrin, elsizes, scale, fill):
+        if self._scalar_size() not in elsizes:
+            return
+        npyv_loadn_tillz, npyv_loadn_till = eval(intrin)
+        lanes = list(range(1, self.nlanes + 1))
+        lanes += [self.nlanes**2, self.nlanes**4]
+        for stride in range(-64, 64):
+            if stride < 0:
+                data = self._data(stride, -stride * self.nlanes)
+                data_stride = list(itertools.chain(
+                    *zip(*[data[-i::stride] for i in range(scale, 0, -1)])
+                ))
+            elif stride == 0:
+                data = self._data()
+                data_stride = data[0:scale] * (self.nlanes // scale)
+            else:
+                data = self._data(count=stride * self.nlanes)
+                data_stride = list(itertools.chain(
+                    *zip(*[data[i::stride] for i in range(scale)])
+                ))
+            data_stride = list(self.load(data_stride))  # cast unsigned
+            for n in lanes:
+                nscale = n * scale
+                llanes = self.nlanes - nscale
+                data_stride_till = (
+                    data_stride[:nscale] + fill * (llanes // scale)
+                )
+                loadn_till = npyv_loadn_till(data, stride, n, *fill)
+                assert loadn_till == data_stride_till
+                data_stride_tillz = data_stride[:nscale] + [0] * llanes
+                loadn_tillz = npyv_loadn_tillz(data, stride, n)
+                assert loadn_tillz == data_stride_tillz
+
+    @pytest.mark.parametrize("intrin, elsizes, scale", [
+        ("self.storen", (32, 64), 1),
+        ("self.storen2", (32, 64), 2),
+    ])
+    def test_memory_noncont_store(self, intrin, elsizes, scale):
+        if self._scalar_size() not in elsizes:
+            return
+        npyv_storen = eval(intrin)
+        data = self._data()
+        vdata = self.load(data)
+        hlanes = self.nlanes // scale
+        for stride in range(1, 64):
+            data_storen = [0xff] * stride * self.nlanes
+            for s in range(0, hlanes * stride, stride):
+                i = (s // stride) * scale
+                data_storen[s:s + scale] = data[i:i + scale]
+            storen = [0xff] * stride * self.nlanes
+            storen += [0x7f] * 64
+            npyv_storen(storen, stride, vdata)
+            assert storen[:-64] == data_storen
+            assert storen[-64:] == [0x7f] * 64  # detect overflow
+
+        for stride in range(-64, 0):
+            data_storen = [0xff] * -stride * self.nlanes
+            for s in range(0, hlanes * stride, stride):
+                i = (s // stride) * scale
+                data_storen[s - scale:s or None] = data[i:i + scale]
+            storen = [0x7f] * 64
+            storen += [0xff] * -stride * self.nlanes
+            npyv_storen(storen, stride, vdata)
+            assert storen[64:] == data_storen
+            assert storen[:64] == [0x7f] * 64  # detect overflow
+        # stride 0
+        data_storen = [0x7f] * self.nlanes
+        storen = data_storen.copy()
+        data_storen[0:scale] = data[-scale:]
+        npyv_storen(storen, 0, vdata)
+        assert storen == data_storen
+
+    @pytest.mark.parametrize("intrin, elsizes, scale", [
+        ("self.storen_till", (32, 64), 1),
+        ("self.storen2_till", (32, 64), 2),
+    ])
+    def test_memory_noncont_partial_store(self, intrin, elsizes, scale):
+        if self._scalar_size() not in elsizes:
+            return
+        npyv_storen_till = eval(intrin)
+        data = self._data()
+        vdata = self.load(data)
+        lanes = list(range(1, self.nlanes + 1))
+        lanes += [self.nlanes**2, self.nlanes**4]
+        hlanes = self.nlanes // scale
+        for stride in range(1, 64):
+            for n in lanes:
+                data_till = [0xff] * stride * self.nlanes
+                tdata = data[:n * scale] + [0xff] * (self.nlanes - n * scale)
+                for s in range(0, hlanes * stride, stride)[:n]:
+                    i = (s // stride) * scale
+                    data_till[s:s + scale] = tdata[i:i + scale]
+                storen_till = [0xff] * stride * self.nlanes
+                storen_till += [0x7f] * 64
+                npyv_storen_till(storen_till, stride, n, vdata)
+                assert storen_till[:-64] == data_till
+                assert storen_till[-64:] == [0x7f] * 64  # detect overflow
+
+        for stride in range(-64, 0):
+            for n in lanes:
+                data_till = [0xff] * -stride * self.nlanes
+                tdata = data[:n * scale] + [0xff] * (self.nlanes - n * scale)
+                for s in range(0, hlanes * stride, stride)[:n]:
+                    i = (s // stride) * scale
+                    data_till[s - scale:s or None] = tdata[i:i + scale]
+                storen_till = [0x7f] * 64
+                storen_till += [0xff] * -stride * self.nlanes
+                npyv_storen_till(storen_till, stride, n, vdata)
+                assert storen_till[64:] == data_till
+                assert storen_till[:64] == [0x7f] * 64  # detect overflow
+
+        # stride 0
+        for n in lanes:
+            data_till = [0x7f] * self.nlanes
+            storen_till = data_till.copy()
+            data_till[0:scale] = data[:n * scale][-scale:]
+            npyv_storen_till(storen_till, 0, n, vdata)
+            assert storen_till == data_till
+
+    @pytest.mark.parametrize("intrin, table_size, elsize", [
+        ("self.lut32", 32, 32),
+        ("self.lut16", 16, 64)
+    ])
+    def test_lut(self, intrin, table_size, elsize):
+        """
+        Test lookup table intrinsics:
+            npyv_lut32_##sfx
+            npyv_lut16_##sfx
+        """
+        if elsize != self._scalar_size():
+            return
+        intrin = eval(intrin)
+        idx_itrin = getattr(self.npyv, f"setall_u{elsize}")
+        table = range(table_size)
+        for i in table:
+            broadi = self.setall(i)
+            idx = idx_itrin(i)
+            lut = intrin(table, idx)
+            assert lut == broadi
+
+    def test_misc(self):
+        broadcast_zero = self.zero()
+        assert broadcast_zero == [0] * self.nlanes
+        for i in range(1, 10):
+            broadcasti = self.setall(i)
+            assert broadcasti == [i] * self.nlanes
+
+        data_a, data_b = self._data(), self._data(reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        # py level of npyv_set_* don't support ignoring the extra specified lanes or
+        # fill non-specified lanes with zero.
+        vset = self.set(*data_a)
+        assert vset == data_a
+        # py level of npyv_setf_* don't support ignoring the extra specified lanes or
+        # fill non-specified lanes with the specified scalar.
+        vsetf = self.setf(10, *data_a)
+        assert vsetf == data_a
+
+        # We're testing the sanity of _simd's type-vector,
+        # reinterpret* intrinsics itself are tested via compiler
+        # during the build of _simd module
+        sfxes = ["u8", "s8", "u16", "s16", "u32", "s32", "u64", "s64"]
+        if self.npyv.simd_f64:
+            sfxes.append("f64")
+        if self.npyv.simd_f32:
+            sfxes.append("f32")
+        for sfx in sfxes:
+            vec_name = getattr(self, "reinterpret_" + sfx)(vdata_a).__name__
+            assert vec_name == "npyv_" + sfx
+
+        # select & mask operations
+        select_a = self.select(self.cmpeq(self.zero(), self.zero()), vdata_a, vdata_b)
+        assert select_a == data_a
+        select_b = self.select(self.cmpneq(self.zero(), self.zero()), vdata_a, vdata_b)
+        assert select_b == data_b
+
+        # test extract elements
+        assert self.extract0(vdata_b) == vdata_b[0]
+
+        # cleanup intrinsic is only used with AVX for
+        # zeroing registers to avoid the AVX-SSE transition penalty,
+        # so nothing to test here
+        self.npyv.cleanup()
+
+    def test_reorder(self):
+        data_a, data_b = self._data(), self._data(reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+        # lower half part
+        data_a_lo = data_a[:self.nlanes // 2]
+        data_b_lo = data_b[:self.nlanes // 2]
+        # higher half part
+        data_a_hi = data_a[self.nlanes // 2:]
+        data_b_hi = data_b[self.nlanes // 2:]
+        # combine two lower parts
+        combinel = self.combinel(vdata_a, vdata_b)
+        assert combinel == data_a_lo + data_b_lo
+        # combine two higher parts
+        combineh = self.combineh(vdata_a, vdata_b)
+        assert combineh == data_a_hi + data_b_hi
+        # combine x2
+        combine = self.combine(vdata_a, vdata_b)
+        assert combine == (data_a_lo + data_b_lo, data_a_hi + data_b_hi)
+
+        # zip(interleave)
+        data_zipl = self.load([
+            v for p in zip(data_a_lo, data_b_lo) for v in p
+        ])
+        data_ziph = self.load([
+            v for p in zip(data_a_hi, data_b_hi) for v in p
+        ])
+        vzip = self.zip(vdata_a, vdata_b)
+        assert vzip == (data_zipl, data_ziph)
+        vzip = [0] * self.nlanes * 2
+        self._x2("store")(vzip, (vdata_a, vdata_b))
+        assert vzip == list(data_zipl) + list(data_ziph)
+
+        # unzip(deinterleave)
+        unzip = self.unzip(data_zipl, data_ziph)
+        assert unzip == (data_a, data_b)
+        unzip = self._x2("load")(list(data_zipl) + list(data_ziph))
+        assert unzip == (data_a, data_b)
+
+    def test_reorder_rev64(self):
+        # Reverse elements of each 64-bit lane
+        ssize = self._scalar_size()
+        if ssize == 64:
+            return
+        data_rev64 = [
+            y for x in range(0, self.nlanes, 64 // ssize)
+              for y in reversed(range(x, x + 64 // ssize))
+        ]
+        rev64 = self.rev64(self.load(range(self.nlanes)))
+        assert rev64 == data_rev64
+
+    def test_reorder_permi128(self):
+        """
+        Test permuting elements for each 128-bit lane.
+        npyv_permi128_##sfx
+        """
+        ssize = self._scalar_size()
+        if ssize < 32:
+            return
+        data = self.load(self._data())
+        permn = 128 // ssize
+        permd = permn - 1
+        nlane128 = self.nlanes // permn
+        shfl = [0, 1] if ssize == 64 else [0, 2, 4, 6]
+        for i in range(permn):
+            indices = [(i >> shf) & permd for shf in shfl]
+            vperm = self.permi128(data, *indices)
+            data_vperm = [
+                data[j + (e & -permn)]
+                for e, j in enumerate(indices * nlane128)
+            ]
+            assert vperm == data_vperm
+
+    @pytest.mark.parametrize('func, intrin', [
+        (operator.lt, "cmplt"),
+        (operator.le, "cmple"),
+        (operator.gt, "cmpgt"),
+        (operator.ge, "cmpge"),
+        (operator.eq, "cmpeq")
+    ])
+    def test_operators_comparison(self, func, intrin):
+        if self._is_fp():
+            data_a = self._data()
+        else:
+            data_a = self._data(self._int_max() - self.nlanes)
+        data_b = self._data(self._int_min(), reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+        intrin = getattr(self, intrin)
+
+        mask_true = self._true_mask()
+
+        def to_bool(vector):
+            return [lane == mask_true for lane in vector]
+
+        data_cmp = [func(a, b) for a, b in zip(data_a, data_b)]
+        cmp = to_bool(intrin(vdata_a, vdata_b))
+        assert cmp == data_cmp
+
+    def test_operators_logical(self):
+        if self._is_fp():
+            data_a = self._data()
+        else:
+            data_a = self._data(self._int_max() - self.nlanes)
+        data_b = self._data(self._int_min(), reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        if self._is_fp():
+            data_cast_a = self._to_unsigned(vdata_a)
+            data_cast_b = self._to_unsigned(vdata_b)
+            cast, cast_data = self._to_unsigned, self._to_unsigned
+        else:
+            data_cast_a, data_cast_b = data_a, data_b
+            cast, cast_data = lambda a: a, self.load
+
+        data_xor = cast_data([a ^ b for a, b in zip(data_cast_a, data_cast_b)])
+        vxor = cast(self.xor(vdata_a, vdata_b))
+        assert vxor == data_xor
+
+        data_or = cast_data([a | b for a, b in zip(data_cast_a, data_cast_b)])
+        vor = cast(getattr(self, "or")(vdata_a, vdata_b))
+        assert vor == data_or
+
+        data_and = cast_data([a & b for a, b in zip(data_cast_a, data_cast_b)])
+        vand = cast(getattr(self, "and")(vdata_a, vdata_b))
+        assert vand == data_and
+
+        data_not = cast_data([~a for a in data_cast_a])
+        vnot = cast(getattr(self, "not")(vdata_a))
+        assert vnot == data_not
+
+        if self.sfx not in ("u8"):
+            return
+        data_andc = [a & ~b for a, b in zip(data_cast_a, data_cast_b)]
+        vandc = cast(self.andc(vdata_a, vdata_b))
+        assert vandc == data_andc
+
+    @pytest.mark.parametrize("intrin", ["any", "all"])
+    @pytest.mark.parametrize("data", (
+        [1, 2, 3, 4],
+        [-1, -2, -3, -4],
+        [0, 1, 2, 3, 4],
+        [0x7f, 0x7fff, 0x7fffffff, 0x7fffffffffffffff],
+        [0, -1, -2, -3, 4],
+        [0],
+        [1],
+        [-1]
+    ))
+    def test_operators_crosstest(self, intrin, data):
+        """
+        Test intrinsics:
+            npyv_any_##SFX
+            npyv_all_##SFX
+        """
+        data_a = self.load(data * self.nlanes)
+        func = eval(intrin)
+        intrin = getattr(self, intrin)
+        desired = func(data_a)
+        simd = intrin(data_a)
+        assert not not simd == desired
+
+    def test_conversion_boolean(self):
+        bsfx = "b" + self.sfx[1:]
+        to_boolean = getattr(self.npyv, f"cvt_{bsfx}_{self.sfx}")
+        from_boolean = getattr(self.npyv, f"cvt_{self.sfx}_{bsfx}")
+
+        false_vb = to_boolean(self.setall(0))
+        true_vb = self.cmpeq(self.setall(0), self.setall(0))
+        assert false_vb != true_vb
+
+        false_vsfx = from_boolean(false_vb)
+        true_vsfx = from_boolean(true_vb)
+        assert false_vsfx != true_vsfx
+
+    def test_conversion_expand(self):
+        """
+        Test expand intrinsics:
+            npyv_expand_u16_u8
+            npyv_expand_u32_u16
+        """
+        if self.sfx not in ("u8", "u16"):
+            return
+        totype = self.sfx[0] + str(int(self.sfx[1:]) * 2)
+        expand = getattr(self.npyv, f"expand_{totype}_{self.sfx}")
+        # close enough from the edge to detect any deviation
+        data = self._data(self._int_max() - self.nlanes)
+        vdata = self.load(data)
+        edata = expand(vdata)
+        # lower half part
+        data_lo = data[:self.nlanes // 2]
+        # higher half part
+        data_hi = data[self.nlanes // 2:]
+        assert edata == (data_lo, data_hi)
+
+    def test_arithmetic_subadd(self):
+        if self._is_fp():
+            data_a = self._data()
+        else:
+            data_a = self._data(self._int_max() - self.nlanes)
+        data_b = self._data(self._int_min(), reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        # non-saturated
+        data_add = self.load([a + b for a, b in zip(data_a, data_b)])  # load to cast
+        add = self.add(vdata_a, vdata_b)
+        assert add == data_add
+        data_sub = self.load([a - b for a, b in zip(data_a, data_b)])
+        sub = self.sub(vdata_a, vdata_b)
+        assert sub == data_sub
+
+    def test_arithmetic_mul(self):
+        if self.sfx in ("u64", "s64"):
+            return
+
+        if self._is_fp():
+            data_a = self._data()
+        else:
+            data_a = self._data(self._int_max() - self.nlanes)
+        data_b = self._data(self._int_min(), reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        data_mul = self.load([a * b for a, b in zip(data_a, data_b)])
+        mul = self.mul(vdata_a, vdata_b)
+        assert mul == data_mul
+
+    def test_arithmetic_div(self):
+        if not self._is_fp():
+            return
+
+        data_a, data_b = self._data(), self._data(reverse=True)
+        vdata_a, vdata_b = self.load(data_a), self.load(data_b)
+
+        # load to truncate f64 to precision of f32
+        data_div = self.load([a / b for a, b in zip(data_a, data_b)])
+        div = self.div(vdata_a, vdata_b)
+        assert div == data_div
+
+    def test_arithmetic_intdiv(self):
+        """
+        Test integer division intrinsics:
+            npyv_divisor_##sfx
+            npyv_divc_##sfx
+        """
+        if self._is_fp():
+            return
+
+        int_min = self._int_min()
+
+        def trunc_div(a, d):
+            """
+            Divide towards zero works with large integers > 2^53,
+            and wrap around overflow similar to what C does.
+            """
+            if d == -1 and a == int_min:
+                return a
+            sign_a, sign_d = a < 0, d < 0
+            if a == 0 or sign_a == sign_d:
+                return a // d
+            return (a + sign_d - sign_a) // d + 1
+
+        data = [1, -int_min]  # to test overflow
+        data += range(0, 2**8, 2**5)
+        data += range(0, 2**8, 2**5 - 1)
+        bsize = self._scalar_size()
+        if bsize > 8:
+            data += range(2**8, 2**16, 2**13)
+            data += range(2**8, 2**16, 2**13 - 1)
+        if bsize > 16:
+            data += range(2**16, 2**32, 2**29)
+            data += range(2**16, 2**32, 2**29 - 1)
+        if bsize > 32:
+            data += range(2**32, 2**64, 2**61)
+            data += range(2**32, 2**64, 2**61 - 1)
+        # negate
+        data += [-x for x in data]
+        for dividend, divisor in itertools.product(data, data):
+            divisor = self.setall(divisor)[0]  # cast
+            if divisor == 0:
+                continue
+            dividend = self.load(self._data(dividend))
+            data_divc = [trunc_div(a, divisor) for a in dividend]
+            divisor_parms = self.divisor(divisor)
+            divc = self.divc(dividend, divisor_parms)
+            assert divc == data_divc
+
+    def test_arithmetic_reduce_sum(self):
+        """
+        Test reduce sum intrinsics:
+            npyv_sum_##sfx
+        """
+        if self.sfx not in ("u32", "u64", "f32", "f64"):
+            return
+        # reduce sum
+        data = self._data()
+        vdata = self.load(data)
+
+        data_sum = sum(data)
+        vsum = self.sum(vdata)
+        assert vsum == data_sum
+
+    def test_arithmetic_reduce_sumup(self):
+        """
+        Test extend reduce sum intrinsics:
+            npyv_sumup_##sfx
+        """
+        if self.sfx not in ("u8", "u16"):
+            return
+        rdata = (0, self.nlanes, self._int_min(), self._int_max() - self.nlanes)
+        for r in rdata:
+            data = self._data(r)
+            vdata = self.load(data)
+            data_sum = sum(data)
+            vsum = self.sumup(vdata)
+            assert vsum == data_sum
+
+    def test_mask_conditional(self):
+        """
+        Conditional addition and subtraction for all supported data types.
+        Test intrinsics:
+            npyv_ifadd_##SFX, npyv_ifsub_##SFX
+        """
+        vdata_a = self.load(self._data())
+        vdata_b = self.load(self._data(reverse=True))
+        true_mask = self.cmpeq(self.zero(), self.zero())
+        false_mask = self.cmpneq(self.zero(), self.zero())
+
+        data_sub = self.sub(vdata_b, vdata_a)
+        ifsub = self.ifsub(true_mask, vdata_b, vdata_a, vdata_b)
+        assert ifsub == data_sub
+        ifsub = self.ifsub(false_mask, vdata_a, vdata_b, vdata_b)
+        assert ifsub == vdata_b
+
+        data_add = self.add(vdata_b, vdata_a)
+        ifadd = self.ifadd(true_mask, vdata_b, vdata_a, vdata_b)
+        assert ifadd == data_add
+        ifadd = self.ifadd(false_mask, vdata_a, vdata_b, vdata_b)
+        assert ifadd == vdata_b
+
+        if not self._is_fp():
+            return
+        data_div = self.div(vdata_b, vdata_a)
+        ifdiv = self.ifdiv(true_mask, vdata_b, vdata_a, vdata_b)
+        assert ifdiv == data_div
+        ifdivz = self.ifdivz(true_mask, vdata_b, vdata_a)
+        assert ifdivz == data_div
+        ifdiv = self.ifdiv(false_mask, vdata_a, vdata_b, vdata_b)
+        assert ifdiv == vdata_b
+        ifdivz = self.ifdivz(false_mask, vdata_a, vdata_b)
+        assert ifdivz == self.zero()
+
+
+bool_sfx = ("b8", "b16", "b32", "b64")
+int_sfx = ("u8", "s8", "u16", "s16", "u32", "s32", "u64", "s64")
+fp_sfx = ("f32", "f64")
+all_sfx = int_sfx + fp_sfx
+tests_registry = {
+    bool_sfx: _SIMD_BOOL,
+    int_sfx:  _SIMD_INT,
+    fp_sfx:   _SIMD_FP,
+    ("f32",): _SIMD_FP32,
+    ("f64",): _SIMD_FP64,
+    all_sfx:  _SIMD_ALL
+}
+for target_name, npyv in targets.items():
+    simd_width = npyv.simd if npyv else ''
+    pretty_name = target_name.split('__')  # multi-target separator
+    if len(pretty_name) > 1:
+        # multi-target
+        pretty_name = f"({' '.join(pretty_name)})"
+    else:
+        pretty_name = pretty_name[0]
+
+    skip = ""
+    skip_sfx = {}
+    if not npyv:
+        skip = f"target '{pretty_name}' isn't supported by current machine"
+    elif not npyv.simd:
+        skip = f"target '{pretty_name}' isn't supported by NPYV"
+    else:
+        if not npyv.simd_f32:
+            skip_sfx["f32"] = f"target '{pretty_name}' "\
+                               "doesn't support single-precision"
+        if not npyv.simd_f64:
+            skip_sfx["f64"] = f"target '{pretty_name}' doesn't"\
+                               "support double-precision"
+
+    for sfxes, cls in tests_registry.items():
+        for sfx in sfxes:
+            skip_m = skip_sfx.get(sfx, skip)
+            inhr = (cls,)
+            attr = {"npyv": targets[target_name], "sfx": sfx,
+                    "target_name": target_name}
+            type_name = f"Test{cls.__name__}_{simd_width}_{target_name}_{sfx}"
+            tcls = type(type_name, inhr, attr)
+            if skip_m:
+                pytest.mark.skip(reason=skip_m)(tcls)
+            globals()[tcls.__name__] = tcls
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_simd_module.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_simd_module.py
new file mode 100644
index 0000000000000000000000000000000000000000..7056fef34ea314623ab09ec7f135a078378278ae
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_simd_module.py
@@ -0,0 +1,105 @@
+import pytest
+
+from numpy._core._simd import targets
+
+"""
+This testing unit only for checking the sanity of common functionality,
+therefore all we need is just to take one submodule that represents any
+of enabled SIMD extensions to run the test on it and the second submodule
+required to run only one check related to the possibility of mixing
+the data types among each submodule.
+"""
+npyvs = [npyv_mod for npyv_mod in targets.values() if npyv_mod and npyv_mod.simd]
+npyv, npyv2 = (npyvs + [None, None])[:2]
+
+unsigned_sfx = ["u8", "u16", "u32", "u64"]
+signed_sfx = ["s8", "s16", "s32", "s64"]
+fp_sfx = []
+if npyv and npyv.simd_f32:
+    fp_sfx.append("f32")
+if npyv and npyv.simd_f64:
+    fp_sfx.append("f64")
+
+int_sfx = unsigned_sfx + signed_sfx
+all_sfx = unsigned_sfx + int_sfx
+
+@pytest.mark.skipif(not npyv,
+                    reason="could not find any SIMD extension with NPYV support")
+class Test_SIMD_MODULE:
+
+    @pytest.mark.parametrize('sfx', all_sfx)
+    def test_num_lanes(self, sfx):
+        nlanes = getattr(npyv, "nlanes_" + sfx)
+        vector = getattr(npyv, "setall_" + sfx)(1)
+        assert len(vector) == nlanes
+
+    @pytest.mark.parametrize('sfx', all_sfx)
+    def test_type_name(self, sfx):
+        vector = getattr(npyv, "setall_" + sfx)(1)
+        assert vector.__name__ == "npyv_" + sfx
+
+    def test_raises(self):
+        a, b = [npyv.setall_u32(1)] * 2
+        for sfx in all_sfx:
+            vcb = lambda intrin: getattr(npyv, f"{intrin}_{sfx}")
+            pytest.raises(TypeError, vcb("add"), a)
+            pytest.raises(TypeError, vcb("add"), a, b, a)
+            pytest.raises(TypeError, vcb("setall"))
+            pytest.raises(TypeError, vcb("setall"), [1])
+            pytest.raises(TypeError, vcb("load"), 1)
+            pytest.raises(ValueError, vcb("load"), [1])
+            value = getattr(npyv, f"reinterpret_{sfx}_u32")(a)
+            pytest.raises(ValueError, vcb("store"), [1], value)
+
+    @pytest.mark.skipif(not npyv2, reason=(
+        "could not find a second SIMD extension with NPYV support"
+    ))
+    def test_nomix(self):
+        # mix among submodules isn't allowed
+        a = npyv.setall_u32(1)
+        a2 = npyv2.setall_u32(1)
+        pytest.raises(TypeError, npyv.add_u32, a2, a2)
+        pytest.raises(TypeError, npyv2.add_u32, a, a)
+
+    @pytest.mark.parametrize('sfx', unsigned_sfx)
+    def test_unsigned_overflow(self, sfx):
+        nlanes = getattr(npyv, "nlanes_" + sfx)
+        maxu = (1 << int(sfx[1:])) - 1
+        maxu_72 = (1 << 72) - 1
+        lane = getattr(npyv, "setall_" + sfx)(maxu_72)[0]
+        assert lane == maxu
+        lanes = getattr(npyv, "load_" + sfx)([maxu_72] * nlanes)
+        assert lanes == [maxu] * nlanes
+        lane = getattr(npyv, "setall_" + sfx)(-1)[0]
+        assert lane == maxu
+        lanes = getattr(npyv, "load_" + sfx)([-1] * nlanes)
+        assert lanes == [maxu] * nlanes
+
+    @pytest.mark.parametrize('sfx', signed_sfx)
+    def test_signed_overflow(self, sfx):
+        nlanes = getattr(npyv, "nlanes_" + sfx)
+        maxs_72 = (1 << 71) - 1
+        lane = getattr(npyv, "setall_" + sfx)(maxs_72)[0]
+        assert lane == -1
+        lanes = getattr(npyv, "load_" + sfx)([maxs_72] * nlanes)
+        assert lanes == [-1] * nlanes
+        mins_72 = -1 << 71
+        lane = getattr(npyv, "setall_" + sfx)(mins_72)[0]
+        assert lane == 0
+        lanes = getattr(npyv, "load_" + sfx)([mins_72] * nlanes)
+        assert lanes == [0] * nlanes
+
+    def test_truncate_f32(self):
+        if not npyv.simd_f32:
+            pytest.skip("F32 isn't support by the SIMD extension")
+        f32 = npyv.setall_f32(0.1)[0]
+        assert f32 != 0.1
+        assert round(f32, 1) == 0.1
+
+    def test_compare(self):
+        data_range = range(npyv.nlanes_u32)
+        vdata = npyv.load_u32(data_range)
+        assert vdata == list(data_range)
+        assert vdata == tuple(data_range)
+        for i in data_range:
+            assert vdata[i] == data_range[i]
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_stringdtype.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_stringdtype.py
new file mode 100644
index 0000000000000000000000000000000000000000..b7e4975295f175cb8957e64257167e9ee6abbff6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_stringdtype.py
@@ -0,0 +1,1855 @@
+import copy
+import itertools
+import os
+import pickle
+import string
+import sys
+import tempfile
+
+import pytest
+
+import numpy as np
+from numpy._core.tests._natype import pd_NA
+from numpy.dtypes import StringDType
+from numpy.testing import IS_PYPY, assert_array_equal
+
+
+def random_unicode_string_list():
+    """Returns an array of 10 100-character strings containing random text"""
+    chars = list(string.ascii_letters + string.digits)
+    chars = np.array(chars, dtype="U1")
+    ret = np.random.choice(chars, size=100 * 10, replace=True)
+    return ret.view("U100")
+
+
+def get_dtype(na_object, coerce=True):
+    """Helper to work around pd_NA boolean behavior"""
+    # explicit is check for pd_NA because != with pd_NA returns pd_NA
+    if na_object is pd_NA or na_object != "unset":
+        return np.dtypes.StringDType(na_object=na_object, coerce=coerce)
+    else:
+        return np.dtypes.StringDType(coerce=coerce)
+
+
+@pytest.fixture(params=[True, False])
+def coerce(request):
+    """Coerce input to strings or raise an error for non-string input"""
+    return request.param
+
+
+@pytest.fixture(
+    params=["unset", None, pd_NA, np.nan, float("nan"), "__nan__"],
+    ids=["unset", "None", "pandas.NA", "np.nan", "float('nan')", "string nan"],
+)
+def na_object(request):
+    """Possible values for the missing data sentinel"""
+    return request.param
+
+
+@pytest.fixture()
+def dtype(na_object, coerce):
+    """Cartesian project of missing data sentinel and string coercion options"""
+    return get_dtype(na_object, coerce)
+
+@pytest.fixture
+def string_list():
+    """Mix of short and long strings, some with unicode, some without"""
+    return ["abc", "def", "ghi" * 10, "A¢☃€ 😊" * 100, "Abc" * 1000, "DEF"]
+
+
+@pytest.fixture(params=[True, False])
+def coerce2(request):
+    """Second copy of the coerce fixture for tests that need two instances"""
+    return request.param
+
+
+@pytest.fixture(
+    params=["unset", None, pd_NA, np.nan, float("nan"), "__nan__"],
+    ids=["unset", "None", "pandas.NA", "np.nan", "float('nan')", "string nan"],
+)
+def na_object2(request):
+    """Second copy of the na_object fixture for tests that need two instances"""
+    return request.param
+
+
+@pytest.fixture()
+def dtype2(na_object2, coerce2):
+    """Second copy of the dtype fixture for tests that need two instances"""
+    # explicit is check for pd_NA because != with pd_NA returns pd_NA
+    if na_object2 is pd_NA or na_object2 != "unset":
+        return StringDType(na_object=na_object2, coerce=coerce2)
+    else:
+        return StringDType(coerce=coerce2)
+
+
+def test_dtype_creation():
+    hashes = set()
+    dt = StringDType()
+    assert not hasattr(dt, "na_object") and dt.coerce is True
+    hashes.add(hash(dt))
+
+    dt = StringDType(na_object=None)
+    assert dt.na_object is None and dt.coerce is True
+    hashes.add(hash(dt))
+
+    dt = StringDType(coerce=False)
+    assert not hasattr(dt, "na_object") and dt.coerce is False
+    hashes.add(hash(dt))
+
+    dt = StringDType(na_object=None, coerce=False)
+    assert dt.na_object is None and dt.coerce is False
+    hashes.add(hash(dt))
+
+    assert len(hashes) == 4
+
+    dt = np.dtype("T")
+    assert dt == StringDType()
+    assert dt.kind == "T"
+    assert dt.char == "T"
+
+    hashes.add(hash(dt))
+    assert len(hashes) == 4
+
+
+def test_dtype_equality(dtype):
+    assert dtype == dtype
+    for ch in "SU":
+        assert dtype != np.dtype(ch)
+        assert dtype != np.dtype(f"{ch}8")
+
+
+def test_dtype_repr(dtype):
+    if not hasattr(dtype, "na_object") and dtype.coerce:
+        assert repr(dtype) == "StringDType()"
+    elif dtype.coerce:
+        assert repr(dtype) == f"StringDType(na_object={dtype.na_object!r})"
+    elif not hasattr(dtype, "na_object"):
+        assert repr(dtype) == "StringDType(coerce=False)"
+    else:
+        assert (
+            repr(dtype)
+            == f"StringDType(na_object={dtype.na_object!r}, coerce=False)"
+        )
+
+
+def test_create_with_na(dtype):
+    if not hasattr(dtype, "na_object"):
+        pytest.skip("does not have an na object")
+    na_val = dtype.na_object
+    string_list = ["hello", na_val, "world"]
+    arr = np.array(string_list, dtype=dtype)
+    assert str(arr) == "[" + " ".join([repr(s) for s in string_list]) + "]"
+    assert arr[1] is dtype.na_object
+
+
+@pytest.mark.parametrize("i", list(range(5)))
+def test_set_replace_na(i):
+    # Test strings of various lengths can be set to NaN and then replaced.
+    s_empty = ""
+    s_short = "0123456789"
+    s_medium = "abcdefghijklmnopqrstuvwxyz"
+    s_long = "-=+" * 100
+    strings = [s_medium, s_empty, s_short, s_medium, s_long]
+    a = np.array(strings, StringDType(na_object=np.nan))
+    for s in [a[i], s_medium + s_short, s_short, s_empty, s_long]:
+        a[i] = np.nan
+        assert np.isnan(a[i])
+        a[i] = s
+        assert a[i] == s
+        assert_array_equal(a, strings[:i] + [s] + strings[i + 1:])
+
+
+def test_null_roundtripping():
+    data = ["hello\0world", "ABC\0DEF\0\0"]
+    arr = np.array(data, dtype="T")
+    assert data[0] == arr[0]
+    assert data[1] == arr[1]
+
+
+def test_string_too_large_error():
+    arr = np.array(["a", "b", "c"], dtype=StringDType())
+    with pytest.raises(OverflowError):
+        arr * (sys.maxsize + 1)
+
+
+@pytest.mark.parametrize(
+    "data",
+    [
+        ["abc", "def", "ghi"],
+        ["🤣", "📵", "😰"],
+        ["🚜", "🙃", "😾"],
+        ["😹", "🚠", "🚌"],
+    ],
+)
+def test_array_creation_utf8(dtype, data):
+    arr = np.array(data, dtype=dtype)
+    assert str(arr) == "[" + " ".join(["'" + str(d) + "'" for d in data]) + "]"
+    assert arr.dtype == dtype
+
+
+@pytest.mark.parametrize(
+    "data",
+    [
+        [1, 2, 3],
+        [b"abc", b"def", b"ghi"],
+        [object, object, object],
+    ],
+)
+def test_scalars_string_conversion(data, dtype):
+    try:
+        str_vals = [str(d.decode('utf-8')) for d in data]
+    except AttributeError:
+        str_vals = [str(d) for d in data]
+    if dtype.coerce:
+        assert_array_equal(
+            np.array(data, dtype=dtype),
+            np.array(str_vals, dtype=dtype),
+        )
+    else:
+        with pytest.raises(ValueError):
+            np.array(data, dtype=dtype)
+
+
+@pytest.mark.parametrize(
+    ("strings"),
+    [
+        ["this", "is", "an", "array"],
+        ["€", "", "😊"],
+        ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"],
+    ],
+)
+def test_self_casts(dtype, dtype2, strings):
+    if hasattr(dtype, "na_object"):
+        strings = strings + [dtype.na_object]
+    elif hasattr(dtype2, "na_object"):
+        strings = strings + [""]
+    arr = np.array(strings, dtype=dtype)
+    newarr = arr.astype(dtype2)
+
+    if hasattr(dtype, "na_object") and not hasattr(dtype2, "na_object"):
+        assert newarr[-1] == str(dtype.na_object)
+        with pytest.raises(TypeError):
+            arr.astype(dtype2, casting="safe")
+    elif hasattr(dtype, "na_object") and hasattr(dtype2, "na_object"):
+        assert newarr[-1] is dtype2.na_object
+        arr.astype(dtype2, casting="safe")
+    elif hasattr(dtype2, "na_object"):
+        assert newarr[-1] == ""
+        arr.astype(dtype2, casting="safe")
+    else:
+        arr.astype(dtype2, casting="safe")
+
+    if hasattr(dtype, "na_object") and hasattr(dtype2, "na_object"):
+        na1 = dtype.na_object
+        na2 = dtype2.na_object
+        if (na1 is not na2 and
+             # check for pd_NA first because bool(pd_NA) is an error
+             ((na1 is pd_NA or na2 is pd_NA) or
+              # the second check is a NaN check, spelled this way
+              # to avoid errors from math.isnan and np.isnan
+              (na1 != na2 and not (na1 != na1 and na2 != na2)))):
+            with pytest.raises(TypeError):
+                arr[:-1] == newarr[:-1]
+            return
+    assert_array_equal(arr[:-1], newarr[:-1])
+
+
+@pytest.mark.parametrize(
+    ("strings"),
+    [
+        ["this", "is", "an", "array"],
+        ["€", "", "😊"],
+        ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"],
+    ],
+)
+class TestStringLikeCasts:
+    def test_unicode_casts(self, dtype, strings):
+        arr = np.array(strings, dtype=np.str_).astype(dtype)
+        expected = np.array(strings, dtype=dtype)
+        assert_array_equal(arr, expected)
+
+        arr_as_U8 = expected.astype("U8")
+        assert_array_equal(arr_as_U8, np.array(strings, dtype="U8"))
+        assert_array_equal(arr_as_U8.astype(dtype), arr)
+        arr_as_U3 = expected.astype("U3")
+        assert_array_equal(arr_as_U3, np.array(strings, dtype="U3"))
+        assert_array_equal(
+            arr_as_U3.astype(dtype),
+            np.array([s[:3] for s in strings], dtype=dtype),
+        )
+
+    def test_void_casts(self, dtype, strings):
+        sarr = np.array(strings, dtype=dtype)
+        utf8_bytes = [s.encode("utf-8") for s in strings]
+        void_dtype = f"V{max(len(s) for s in utf8_bytes)}"
+        varr = np.array(utf8_bytes, dtype=void_dtype)
+        assert_array_equal(varr, sarr.astype(void_dtype))
+        assert_array_equal(varr.astype(dtype), sarr)
+
+    def test_bytes_casts(self, dtype, strings):
+        sarr = np.array(strings, dtype=dtype)
+        try:
+            utf8_bytes = [s.encode("ascii") for s in strings]
+            bytes_dtype = f"S{max(len(s) for s in utf8_bytes)}"
+            barr = np.array(utf8_bytes, dtype=bytes_dtype)
+            assert_array_equal(barr, sarr.astype(bytes_dtype))
+            assert_array_equal(barr.astype(dtype), sarr)
+            if dtype.coerce:
+                barr = np.array(utf8_bytes, dtype=dtype)
+                assert_array_equal(barr, sarr)
+                barr = np.array(utf8_bytes, dtype="O")
+                assert_array_equal(barr.astype(dtype), sarr)
+            else:
+                with pytest.raises(ValueError):
+                    np.array(utf8_bytes, dtype=dtype)
+        except UnicodeEncodeError:
+            with pytest.raises(UnicodeEncodeError):
+                sarr.astype("S20")
+
+
+def test_additional_unicode_cast(dtype):
+    string_list = random_unicode_string_list()
+    arr = np.array(string_list, dtype=dtype)
+    # test that this short-circuits correctly
+    assert_array_equal(arr, arr.astype(arr.dtype))
+    # tests the casts via the comparison promoter
+    assert_array_equal(arr, arr.astype(string_list.dtype))
+
+
+def test_insert_scalar(dtype, string_list):
+    """Test that inserting a scalar works."""
+    arr = np.array(string_list, dtype=dtype)
+    scalar_instance = "what"
+    arr[1] = scalar_instance
+    assert_array_equal(
+        arr,
+        np.array(string_list[:1] + ["what"] + string_list[2:], dtype=dtype),
+    )
+
+
+comparison_operators = [
+    np.equal,
+    np.not_equal,
+    np.greater,
+    np.greater_equal,
+    np.less,
+    np.less_equal,
+]
+
+
+@pytest.mark.parametrize("op", comparison_operators)
+@pytest.mark.parametrize("o_dtype", [np.str_, object, StringDType()])
+def test_comparisons(string_list, dtype, op, o_dtype):
+    sarr = np.array(string_list, dtype=dtype)
+    oarr = np.array(string_list, dtype=o_dtype)
+
+    # test that comparison operators work
+    res = op(sarr, sarr)
+    ores = op(oarr, oarr)
+    # test that promotion works as well
+    orres = op(sarr, oarr)
+    olres = op(oarr, sarr)
+
+    assert_array_equal(res, ores)
+    assert_array_equal(res, orres)
+    assert_array_equal(res, olres)
+
+    # test we get the correct answer for unequal length strings
+    sarr2 = np.array([s + "2" for s in string_list], dtype=dtype)
+    oarr2 = np.array([s + "2" for s in string_list], dtype=o_dtype)
+
+    res = op(sarr, sarr2)
+    ores = op(oarr, oarr2)
+    olres = op(oarr, sarr2)
+    orres = op(sarr, oarr2)
+
+    assert_array_equal(res, ores)
+    assert_array_equal(res, olres)
+    assert_array_equal(res, orres)
+
+    res = op(sarr2, sarr)
+    ores = op(oarr2, oarr)
+    olres = op(oarr2, sarr)
+    orres = op(sarr2, oarr)
+
+    assert_array_equal(res, ores)
+    assert_array_equal(res, olres)
+    assert_array_equal(res, orres)
+
+
+def test_isnan(dtype, string_list):
+    if not hasattr(dtype, "na_object"):
+        pytest.skip("no na support")
+    sarr = np.array(string_list + [dtype.na_object], dtype=dtype)
+    is_nan = isinstance(dtype.na_object, float) and np.isnan(dtype.na_object)
+    bool_errors = 0
+    try:
+        bool(dtype.na_object)
+    except TypeError:
+        bool_errors = 1
+    if is_nan or bool_errors:
+        # isnan is only true when na_object is a NaN
+        assert_array_equal(
+            np.isnan(sarr),
+            np.array([0] * len(string_list) + [1], dtype=np.bool),
+        )
+    else:
+        assert not np.any(np.isnan(sarr))
+
+
+def test_pickle(dtype, string_list):
+    arr = np.array(string_list, dtype=dtype)
+
+    with tempfile.NamedTemporaryFile("wb", delete=False) as f:
+        pickle.dump([arr, dtype], f)
+
+    with open(f.name, "rb") as f:
+        res = pickle.load(f)
+
+    assert_array_equal(res[0], arr)
+    assert res[1] == dtype
+
+    os.remove(f.name)
+
+
+def test_stdlib_copy(dtype, string_list):
+    arr = np.array(string_list, dtype=dtype)
+
+    assert_array_equal(copy.copy(arr), arr)
+    assert_array_equal(copy.deepcopy(arr), arr)
+
+
+@pytest.mark.parametrize(
+    "strings",
+    [
+        ["left", "right", "leftovers", "righty", "up", "down"],
+        [
+            "left" * 10,
+            "right" * 10,
+            "leftovers" * 10,
+            "righty" * 10,
+            "up" * 10,
+        ],
+        ["🤣🤣", "🤣", "📵", "😰"],
+        ["🚜", "🙃", "😾"],
+        ["😹", "🚠", "🚌"],
+        ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"],
+    ],
+)
+def test_sort(dtype, strings):
+    """Test that sorting matches python's internal sorting."""
+
+    def test_sort(strings, arr_sorted):
+        arr = np.array(strings, dtype=dtype)
+        na_object = getattr(arr.dtype, "na_object", "")
+        if na_object is None and None in strings:
+            with pytest.raises(
+                ValueError,
+                match="Cannot compare null that is not a nan-like value",
+            ):
+                np.argsort(arr)
+            argsorted = None
+        elif na_object is pd_NA or na_object != '':
+            argsorted = None
+        else:
+            argsorted = np.argsort(arr)
+        np.random.default_rng().shuffle(arr)
+        if na_object is None and None in strings:
+            with pytest.raises(
+                ValueError,
+                match="Cannot compare null that is not a nan-like value",
+            ):
+                arr.sort()
+        else:
+            arr.sort()
+            assert np.array_equal(arr, arr_sorted, equal_nan=True)
+        if argsorted is not None:
+            assert np.array_equal(argsorted, np.argsort(strings))
+
+    # make a copy so we don't mutate the lists in the fixture
+    strings = strings.copy()
+    arr_sorted = np.array(sorted(strings), dtype=dtype)
+    test_sort(strings, arr_sorted)
+
+    if not hasattr(dtype, "na_object"):
+        return
+
+    # make sure NAs get sorted to the end of the array and string NAs get
+    # sorted like normal strings
+    strings.insert(0, dtype.na_object)
+    strings.insert(2, dtype.na_object)
+    # can't use append because doing that with NA converts
+    # the result to object dtype
+    if not isinstance(dtype.na_object, str):
+        arr_sorted = np.array(
+            arr_sorted.tolist() + [dtype.na_object, dtype.na_object],
+            dtype=dtype,
+        )
+    else:
+        arr_sorted = np.array(sorted(strings), dtype=dtype)
+
+    test_sort(strings, arr_sorted)
+
+
+@pytest.mark.parametrize(
+    "strings",
+    [
+        ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"],
+        ["A¢☃€ 😊", "", " ", " "],
+        ["", "a", "😸", "ááðfáíóåéë"],
+    ],
+)
+def test_nonzero(strings, na_object):
+    dtype = get_dtype(na_object)
+    arr = np.array(strings, dtype=dtype)
+    is_nonzero = np.array(
+        [i for i, item in enumerate(strings) if len(item) != 0])
+    assert_array_equal(arr.nonzero()[0], is_nonzero)
+
+    if na_object is not pd_NA and na_object == 'unset':
+        return
+
+    strings_with_na = np.array(strings + [na_object], dtype=dtype)
+    is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0]
+
+    if is_nan:
+        assert strings_with_na.nonzero()[0][-1] == 4
+    else:
+        assert strings_with_na.nonzero()[0][-1] == 3
+
+    # check that the casting to bool and nonzero give consistent results
+    assert_array_equal(strings_with_na[strings_with_na.nonzero()],
+                       strings_with_na[strings_with_na.astype(bool)])
+
+
+def test_where(string_list, na_object):
+    dtype = get_dtype(na_object)
+    a = np.array(string_list, dtype=dtype)
+    b = a[::-1]
+    res = np.where([True, False, True, False, True, False], a, b)
+    assert_array_equal(res, [a[0], b[1], a[2], b[3], a[4], b[5]])
+
+
+def test_fancy_indexing(string_list):
+    sarr = np.array(string_list, dtype="T")
+    assert_array_equal(sarr, sarr[np.arange(sarr.shape[0])])
+
+    inds = [
+        [True, True],
+        [0, 1],
+        ...,
+        np.array([0, 1], dtype='uint8'),
+    ]
+
+    lops = [
+        ['a' * 25, 'b' * 25],
+        ['', ''],
+        ['hello', 'world'],
+        ['hello', 'world' * 25],
+    ]
+
+    # see gh-27003 and gh-27053
+    for ind in inds:
+        for lop in lops:
+            a = np.array(lop, dtype="T")
+            assert_array_equal(a[ind], a)
+            rop = ['d' * 25, 'e' * 25]
+            for b in [rop, np.array(rop, dtype="T")]:
+                a[ind] = b
+                assert_array_equal(a, b)
+                assert a[0] == 'd' * 25
+
+    # see gh-29279
+    data = [
+        ["AAAAAAAAAAAAAAAAA"],
+        ["BBBBBBBBBBBBBBBBBBBBBBBBBBBBB"],
+        ["CCCCCCCCCCCCCCCCC"],
+        ["DDDDDDDDDDDDDDDDD"],
+    ]
+    sarr = np.array(data, dtype=np.dtypes.StringDType())
+    uarr = np.array(data, dtype="U30")
+    for ind in [[0], [1], [2], [3], [[0, 0]], [[1, 1, 3]], [[1, 1]]]:
+        assert_array_equal(sarr[ind], uarr[ind])
+
+
+def test_flatiter_indexing():
+    # see gh-29659
+    arr = np.array(['hello', 'world'], dtype='T')
+    arr.flat[:] = 9223372036854775
+    assert_array_equal(arr, np.array([9223372036854775] * 2, dtype='T'))
+
+
+def test_creation_functions():
+    assert_array_equal(np.zeros(3, dtype="T"), ["", "", ""])
+    assert_array_equal(np.empty(3, dtype="T"), ["", "", ""])
+
+    assert np.zeros(3, dtype="T")[0] == ""
+    assert np.empty(3, dtype="T")[0] == ""
+
+
+def test_concatenate(string_list):
+    sarr = np.array(string_list, dtype="T")
+    sarr_cat = np.array(string_list + string_list, dtype="T")
+
+    assert_array_equal(np.concatenate([sarr], axis=0), sarr)
+
+
+def test_resize_method(string_list):
+    sarr = np.array(string_list, dtype="T")
+    if IS_PYPY:
+        sarr.resize(len(string_list) + 3, refcheck=False)
+    else:
+        sarr.resize(len(string_list) + 3)
+    assert_array_equal(sarr, np.array(string_list + [''] * 3,  dtype="T"))
+
+
+def test_create_with_copy_none(string_list):
+    arr = np.array(string_list, dtype=StringDType())
+    # create another stringdtype array with an arena that has a different
+    # in-memory layout than the first array
+    arr_rev = np.array(string_list[::-1], dtype=StringDType())
+
+    # this should create a copy and the resulting array
+    # shouldn't share an allocator or arena with arr_rev, despite
+    # explicitly passing arr_rev.dtype
+    arr_copy = np.array(arr, copy=None, dtype=arr_rev.dtype)
+    np.testing.assert_array_equal(arr, arr_copy)
+    assert arr_copy.base is None
+
+    with pytest.raises(ValueError, match="Unable to avoid copy"):
+        np.array(arr, copy=False, dtype=arr_rev.dtype)
+
+    # because we're using arr's dtype instance, the view is safe
+    arr_view = np.array(arr, copy=None, dtype=arr.dtype)
+    np.testing.assert_array_equal(arr, arr)
+    np.testing.assert_array_equal(arr_view[::-1], arr_rev)
+    assert arr_view is arr
+
+
+def test_astype_copy_false():
+    orig_dt = StringDType()
+    arr = np.array(["hello", "world"], dtype=StringDType())
+    assert not arr.astype(StringDType(coerce=False), copy=False).dtype.coerce
+
+    assert arr.astype(orig_dt, copy=False).dtype is orig_dt
+
+@pytest.mark.parametrize(
+    "strings",
+    [
+        ["left", "right", "leftovers", "righty", "up", "down"],
+        ["🤣🤣", "🤣", "📵", "😰"],
+        ["🚜", "🙃", "😾"],
+        ["😹", "🚠", "🚌"],
+        ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"],
+    ],
+)
+def test_argmax(strings):
+    """Test that argmax/argmin matches what python calculates."""
+    arr = np.array(strings, dtype="T")
+    assert np.argmax(arr) == strings.index(max(strings))
+    assert np.argmin(arr) == strings.index(min(strings))
+
+
+@pytest.mark.parametrize(
+    "arrfunc,expected",
+    [
+        [np.sort, None],
+        [np.nonzero, (np.array([], dtype=np.int_),)],
+        [np.argmax, 0],
+        [np.argmin, 0],
+    ],
+)
+def test_arrfuncs_zeros(arrfunc, expected):
+    arr = np.zeros(10, dtype="T")
+    result = arrfunc(arr)
+    if expected is None:
+        expected = arr
+    assert_array_equal(result, expected, strict=True)
+
+
+@pytest.mark.parametrize(
+    ("strings", "cast_answer", "any_answer", "all_answer"),
+    [
+        [["hello", "world"], [True, True], True, True],
+        [["", ""], [False, False], False, False],
+        [["hello", ""], [True, False], True, False],
+        [["", "world"], [False, True], True, False],
+    ],
+)
+def test_cast_to_bool(strings, cast_answer, any_answer, all_answer):
+    sarr = np.array(strings, dtype="T")
+    assert_array_equal(sarr.astype("bool"), cast_answer)
+
+    assert np.any(sarr) == any_answer
+    assert np.all(sarr) == all_answer
+
+
+@pytest.mark.parametrize(
+    ("strings", "cast_answer"),
+    [
+        [[True, True], ["True", "True"]],
+        [[False, False], ["False", "False"]],
+        [[True, False], ["True", "False"]],
+        [[False, True], ["False", "True"]],
+    ],
+)
+def test_cast_from_bool(strings, cast_answer):
+    barr = np.array(strings, dtype=bool)
+    assert_array_equal(barr.astype("T"), np.array(cast_answer, dtype="T"))
+
+
+@pytest.mark.parametrize("bitsize", [8, 16, 32, 64])
+@pytest.mark.parametrize("signed", [True, False])
+def test_sized_integer_casts(bitsize, signed):
+    idtype = f"int{bitsize}"
+    if signed:
+        inp = [-(2**p - 1) for p in reversed(range(bitsize - 1))]
+        inp += [2**p - 1 for p in range(1, bitsize - 1)]
+    else:
+        idtype = "u" + idtype
+        inp = [2**p - 1 for p in range(bitsize)]
+    ainp = np.array(inp, dtype=idtype)
+    assert_array_equal(ainp, ainp.astype("T").astype(idtype))
+
+    # safe casting works
+    ainp.astype("T", casting="safe")
+
+    with pytest.raises(TypeError):
+        ainp.astype("T").astype(idtype, casting="safe")
+
+    oob = [str(2**bitsize), str(-(2**bitsize))]
+    with pytest.raises(OverflowError):
+        np.array(oob, dtype="T").astype(idtype)
+
+    with pytest.raises(ValueError):
+        np.array(["1", np.nan, "3"],
+                 dtype=StringDType(na_object=np.nan)).astype(idtype)
+
+
+@pytest.mark.parametrize("typename", ["byte", "short", "int", "longlong"])
+@pytest.mark.parametrize("signed", ["", "u"])
+def test_unsized_integer_casts(typename, signed):
+    idtype = f"{signed}{typename}"
+
+    inp = [1, 2, 3, 4]
+    ainp = np.array(inp, dtype=idtype)
+    assert_array_equal(ainp, ainp.astype("T").astype(idtype))
+
+
+@pytest.mark.parametrize(
+    "typename",
+    [
+        pytest.param(
+            "longdouble",
+            marks=pytest.mark.xfail(
+                np.dtypes.LongDoubleDType() != np.dtypes.Float64DType(),
+                reason="numpy lacks an ld2a implementation",
+                strict=True,
+            ),
+        ),
+        "float64",
+        "float32",
+        "float16",
+    ],
+)
+def test_float_casts(typename):
+    inp = [1.1, 2.8, -3.2, 2.7e4]
+    ainp = np.array(inp, dtype=typename)
+    assert_array_equal(ainp, ainp.astype("T").astype(typename))
+
+    inp = [0.1]
+    sres = np.array(inp, dtype=typename).astype("T")
+    res = sres.astype(typename)
+    assert_array_equal(np.array(inp, dtype=typename), res)
+    assert sres[0] == "0.1"
+
+    if typename == "longdouble":
+        # let's not worry about platform-dependent rounding of longdouble
+        return
+
+    fi = np.finfo(typename)
+
+    inp = [1e-324, fi.smallest_subnormal, -1e-324, -fi.smallest_subnormal]
+    eres = [0, fi.smallest_subnormal, -0, -fi.smallest_subnormal]
+    res = np.array(inp, dtype=typename).astype("T").astype(typename)
+    assert_array_equal(eres, res)
+
+    inp = [2e308, fi.max, -2e308, fi.min]
+    eres = [np.inf, fi.max, -np.inf, fi.min]
+    res = np.array(inp, dtype=typename).astype("T").astype(typename)
+    assert_array_equal(eres, res)
+
+
+def test_float_nan_cast_na_object():
+    # gh-28157
+    dt = np.dtypes.StringDType(na_object=np.nan)
+    arr1 = np.full((1,), fill_value=np.nan, dtype=dt)
+    arr2 = np.full_like(arr1, fill_value=np.nan)
+
+    assert arr1.item() is np.nan
+    assert arr2.item() is np.nan
+
+    inp = [1.2, 2.3, np.nan]
+    arr = np.array(inp).astype(dt)
+    assert arr[2] is np.nan
+    assert arr[0] == '1.2'
+
+
+@pytest.mark.parametrize(
+    "typename",
+    [
+        "csingle",
+        "cdouble",
+        pytest.param(
+            "clongdouble",
+            marks=pytest.mark.xfail(
+                np.dtypes.CLongDoubleDType() != np.dtypes.Complex128DType(),
+                reason="numpy lacks an ld2a implementation",
+                strict=True,
+            ),
+        ),
+    ],
+)
+def test_cfloat_casts(typename):
+    inp = [1.1 + 1.1j, 2.8 + 2.8j, -3.2 - 3.2j, 2.7e4 + 2.7e4j]
+    ainp = np.array(inp, dtype=typename)
+    assert_array_equal(ainp, ainp.astype("T").astype(typename))
+
+    inp = [0.1 + 0.1j]
+    sres = np.array(inp, dtype=typename).astype("T")
+    res = sres.astype(typename)
+    assert_array_equal(np.array(inp, dtype=typename), res)
+    assert sres[0] == "(0.1+0.1j)"
+
+
+def test_take(string_list):
+    sarr = np.array(string_list, dtype="T")
+    res = sarr.take(np.arange(len(string_list)))
+    assert_array_equal(sarr, res)
+
+    # make sure it also works for out
+    out = np.empty(len(string_list), dtype="T")
+    out[0] = "hello"
+    res = sarr.take(np.arange(len(string_list)), out=out)
+    assert res is out
+    assert_array_equal(sarr, res)
+
+
+@pytest.mark.parametrize("use_out", [True, False])
+@pytest.mark.parametrize(
+    "ufunc_name,func",
+    [
+        ("min", min),
+        ("max", max),
+    ],
+)
+def test_ufuncs_minmax(string_list, ufunc_name, func, use_out):
+    """Test that the min/max ufuncs match Python builtin min/max behavior."""
+    arr = np.array(string_list, dtype="T")
+    uarr = np.array(string_list, dtype=str)
+    res = np.array(func(string_list), dtype="T")
+    assert_array_equal(getattr(arr, ufunc_name)(), res)
+
+    ufunc = getattr(np, ufunc_name + "imum")
+
+    if use_out:
+        res = ufunc(arr, arr, out=arr)
+    else:
+        res = ufunc(arr, arr)
+
+    assert_array_equal(uarr, res)
+    assert_array_equal(getattr(arr, ufunc_name)(), func(string_list))
+
+
+def test_max_regression():
+    arr = np.array(['y', 'y', 'z'], dtype="T")
+    assert arr.max() == 'z'
+
+
+@pytest.mark.parametrize("use_out", [True, False])
+@pytest.mark.parametrize(
+    "other_strings",
+    [
+        ["abc", "def" * 500, "ghi" * 16, "🤣" * 100, "📵", "😰"],
+        ["🚜", "🙃", "😾", "😹", "🚠", "🚌"],
+        ["🥦", "¨", "⨯", "∰ ", "⨌ ", "⎶ "],
+    ],
+)
+def test_ufunc_add(dtype, string_list, other_strings, use_out):
+    arr1 = np.array(string_list, dtype=dtype)
+    arr2 = np.array(other_strings, dtype=dtype)
+    result = np.array([a + b for a, b in zip(arr1, arr2)], dtype=dtype)
+
+    if use_out:
+        res = np.add(arr1, arr2, out=arr1)
+    else:
+        res = np.add(arr1, arr2)
+
+    assert_array_equal(res, result)
+
+    if not hasattr(dtype, "na_object"):
+        return
+
+    is_nan = isinstance(dtype.na_object, float) and np.isnan(dtype.na_object)
+    is_str = isinstance(dtype.na_object, str)
+    bool_errors = 0
+    try:
+        bool(dtype.na_object)
+    except TypeError:
+        bool_errors = 1
+
+    arr1 = np.array([dtype.na_object] + string_list, dtype=dtype)
+    arr2 = np.array(other_strings + [dtype.na_object], dtype=dtype)
+
+    if is_nan or bool_errors or is_str:
+        res = np.add(arr1, arr2)
+        assert_array_equal(res[1:-1], arr1[1:-1] + arr2[1:-1])
+        if not is_str:
+            assert res[0] is dtype.na_object and res[-1] is dtype.na_object
+        else:
+            assert res[0] == dtype.na_object + arr2[0]
+            assert res[-1] == arr1[-1] + dtype.na_object
+    else:
+        with pytest.raises(ValueError):
+            np.add(arr1, arr2)
+
+
+def test_ufunc_add_reduce(dtype):
+    values = ["a", "this is a long string", "c"]
+    arr = np.array(values, dtype=dtype)
+    out = np.empty((), dtype=dtype)
+
+    expected = np.array("".join(values), dtype=dtype)
+    assert_array_equal(np.add.reduce(arr), expected)
+
+    np.add.reduce(arr, out=out)
+    assert_array_equal(out, expected)
+
+
+def test_add_promoter(string_list):
+    arr = np.array(string_list, dtype=StringDType())
+    lresult = np.array(["hello" + s for s in string_list], dtype=StringDType())
+    rresult = np.array([s + "hello" for s in string_list], dtype=StringDType())
+
+    for op in ["hello", np.str_("hello"), np.array(["hello"])]:
+        assert_array_equal(op + arr, lresult)
+        assert_array_equal(arr + op, rresult)
+
+    # The promoter should be able to handle things if users pass `dtype=`
+    res = np.add("hello", string_list, dtype=StringDType)
+    assert res.dtype == StringDType()
+
+    # The promoter should not kick in if users override the input,
+    # which means arr is cast, this fails because of the unknown length.
+    with pytest.raises(TypeError, match="cannot cast dtype"):
+        np.add(arr, "add", signature=("U", "U", None), casting="unsafe")
+
+    # But it must simply reject the following:
+    with pytest.raises(TypeError, match=".*did not contain a loop"):
+        np.add(arr, "add", signature=(None, "U", None))
+
+    with pytest.raises(TypeError, match=".*did not contain a loop"):
+        np.add("a", "b", signature=("U", "U", StringDType))
+
+
+def test_add_no_legacy_promote_with_signature():
+    # Possibly misplaced, but useful to test with string DType.  We check that
+    # if there is clearly no loop found, a stray `dtype=` doesn't break things
+    # Regression test for the bad error in gh-26735
+    # (If legacy promotion is gone, this can be deleted...)
+    with pytest.raises(TypeError, match=".*did not contain a loop"):
+        np.add("3", 6, dtype=StringDType)
+
+
+def test_add_promoter_reduce():
+    # Exact TypeError could change, but ensure StringDtype doesn't match
+    with pytest.raises(TypeError, match="the resolved dtypes are not"):
+        np.add.reduce(np.array(["a", "b"], dtype="U"))
+
+    # On the other hand, using `dtype=T` in the *ufunc* should work.
+    np.add.reduce(np.array(["a", "b"], dtype="U"), dtype=np.dtypes.StringDType)
+
+
+def test_multiply_reduce():
+    # At the time of writing (NumPy 2.0) this is very limited (and rather
+    # ridiculous anyway).  But it works and actually makes some sense...
+    # (NumPy does not allow non-scalar initial values)
+    repeats = np.array([2, 3, 4])
+    val = "school-🚌"
+    res = np.multiply.reduce(repeats, initial=val, dtype=np.dtypes.StringDType)
+    assert res == val * np.prod(repeats)
+
+
+def test_multiply_two_string_raises():
+    arr = np.array(["hello", "world"], dtype="T")
+    with pytest.raises(np._core._exceptions._UFuncNoLoopError):
+        np.multiply(arr, arr)
+
+
+@pytest.mark.parametrize("use_out", [True, False])
+@pytest.mark.parametrize("other", [2, [2, 1, 3, 4, 1, 3]])
+@pytest.mark.parametrize(
+    "other_dtype",
+    [
+        None,
+        "int8",
+        "int16",
+        "int32",
+        "int64",
+        "uint8",
+        "uint16",
+        "uint32",
+        "uint64",
+        "short",
+        "int",
+        "intp",
+        "long",
+        "longlong",
+        "ushort",
+        "uint",
+        "uintp",
+        "ulong",
+        "ulonglong",
+    ],
+)
+def test_ufunc_multiply(dtype, string_list, other, other_dtype, use_out):
+    """Test the two-argument ufuncs match python builtin behavior."""
+    arr = np.array(string_list, dtype=dtype)
+    if other_dtype is not None:
+        other_dtype = np.dtype(other_dtype)
+    try:
+        len(other)
+        result = [s * o for s, o in zip(string_list, other)]
+        other = np.array(other)
+        if other_dtype is not None:
+            other = other.astype(other_dtype)
+    except TypeError:
+        if other_dtype is not None:
+            other = other_dtype.type(other)
+        result = [s * other for s in string_list]
+
+    if use_out:
+        arr_cache = arr.copy()
+        lres = np.multiply(arr, other, out=arr)
+        assert_array_equal(lres, result)
+        arr[:] = arr_cache
+        assert lres is arr
+        arr *= other
+        assert_array_equal(arr, result)
+        arr[:] = arr_cache
+        rres = np.multiply(other, arr, out=arr)
+        assert rres is arr
+        assert_array_equal(rres, result)
+    else:
+        lres = arr * other
+        assert_array_equal(lres, result)
+        rres = other * arr
+        assert_array_equal(rres, result)
+
+    if not hasattr(dtype, "na_object"):
+        return
+
+    is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0]
+    is_str = isinstance(dtype.na_object, str)
+    bool_errors = 0
+    try:
+        bool(dtype.na_object)
+    except TypeError:
+        bool_errors = 1
+
+    arr = np.array(string_list + [dtype.na_object], dtype=dtype)
+
+    try:
+        len(other)
+        other = np.append(other, 3)
+        if other_dtype is not None:
+            other = other.astype(other_dtype)
+    except TypeError:
+        pass
+
+    if is_nan or bool_errors or is_str:
+        for res in [arr * other, other * arr]:
+            assert_array_equal(res[:-1], result)
+            if not is_str:
+                assert res[-1] is dtype.na_object
+            else:
+                try:
+                    assert res[-1] == dtype.na_object * other[-1]
+                except (IndexError, TypeError):
+                    assert res[-1] == dtype.na_object * other
+    else:
+        with pytest.raises(TypeError):
+            arr * other
+        with pytest.raises(TypeError):
+            other * arr
+
+
+def test_findlike_promoters():
+    r = "Wally"
+    l = "Where's Wally?"
+    s = np.int32(3)
+    e = np.int8(13)
+    for dtypes in [("T", "U"), ("U", "T")]:
+        for function, answer in [
+            (np.strings.index, 8),
+            (np.strings.endswith, True),
+        ]:
+            assert answer == function(
+                np.array(l, dtype=dtypes[0]), np.array(r, dtype=dtypes[1]), s, e
+            )
+
+
+def test_strip_promoter():
+    arg = ["Hello!!!!", "Hello??!!"]
+    strip_char = "!"
+    answer = ["Hello", "Hello??"]
+    for dtypes in [("T", "U"), ("U", "T")]:
+        result = np.strings.strip(
+            np.array(arg, dtype=dtypes[0]),
+            np.array(strip_char, dtype=dtypes[1])
+        )
+        assert_array_equal(result, answer)
+        assert result.dtype.char == "T"
+
+
+def test_replace_promoter():
+    arg = ["Hello, planet!", "planet, Hello!"]
+    old = "planet"
+    new = "world"
+    answer = ["Hello, world!", "world, Hello!"]
+    for dtypes in itertools.product("TU", repeat=3):
+        if dtypes == ("U", "U", "U"):
+            continue
+        answer_arr = np.strings.replace(
+            np.array(arg, dtype=dtypes[0]),
+            np.array(old, dtype=dtypes[1]),
+            np.array(new, dtype=dtypes[2]),
+        )
+        assert_array_equal(answer_arr, answer)
+        assert answer_arr.dtype.char == "T"
+
+
+def test_center_promoter():
+    arg = ["Hello", "planet!"]
+    fillchar = "/"
+    for dtypes in [("T", "U"), ("U", "T")]:
+        answer = np.strings.center(
+            np.array(arg, dtype=dtypes[0]), 9, np.array(fillchar, dtype=dtypes[1])
+        )
+        assert_array_equal(answer, ["//Hello//", "/planet!/"])
+        assert answer.dtype.char == "T"
+
+
+DATETIME_INPUT = [
+    np.datetime64("1923-04-14T12:43:12"),
+    np.datetime64("1994-06-21T14:43:15"),
+    np.datetime64("2001-10-15T04:10:32"),
+    np.datetime64("NaT"),
+    np.datetime64("1995-11-25T16:02:16"),
+    np.datetime64("2005-01-04T03:14:12"),
+    np.datetime64("2041-12-03T14:05:03"),
+]
+
+
+TIMEDELTA_INPUT = [
+    np.timedelta64(12358, "s"),
+    np.timedelta64(23, "s"),
+    np.timedelta64(74, "s"),
+    np.timedelta64("NaT"),
+    np.timedelta64(23, "s"),
+    np.timedelta64(73, "s"),
+    np.timedelta64(7, "s"),
+]
+
+
+@pytest.mark.parametrize(
+    "input_data, input_dtype",
+    [
+        (DATETIME_INPUT, "M8[s]"),
+        (TIMEDELTA_INPUT, "m8[s]")
+    ]
+)
+def test_datetime_timedelta_cast(dtype, input_data, input_dtype):
+
+    a = np.array(input_data, dtype=input_dtype)
+
+    has_na = hasattr(dtype, "na_object")
+    is_str = isinstance(getattr(dtype, "na_object", None), str)
+
+    if not has_na or is_str:
+        a = np.delete(a, 3)
+
+    sa = a.astype(dtype)
+    ra = sa.astype(a.dtype)
+
+    if has_na and not is_str:
+        assert sa[3] is dtype.na_object
+        assert np.isnat(ra[3])
+
+    assert_array_equal(a, ra)
+
+    if has_na and not is_str:
+        # don't worry about comparing how NaT is converted
+        sa = np.delete(sa, 3)
+        a = np.delete(a, 3)
+
+    if input_dtype.startswith("M"):
+        assert_array_equal(sa, a.astype("U"))
+    else:
+        # The timedelta to unicode cast produces strings
+        # that aren't round-trippable and we don't want to
+        # reproduce that behavior in stringdtype
+        assert_array_equal(sa, a.astype("int64").astype("U"))
+
+
+def test_nat_casts():
+    s = 'nat'
+    all_nats = itertools.product(*zip(s.upper(), s.lower()))
+    all_nats = list(map(''.join, all_nats))
+    NaT_dt = np.datetime64('NaT')
+    NaT_td = np.timedelta64('NaT')
+    for na_object in [np._NoValue, None, np.nan, 'nat', '']:
+        # numpy treats empty string and all case combinations of 'nat' as NaT
+        dtype = StringDType(na_object=na_object)
+        arr = np.array([''] + all_nats, dtype=dtype)
+        dt_array = arr.astype('M8[s]')
+        td_array = arr.astype('m8[s]')
+        assert_array_equal(dt_array, NaT_dt)
+        assert_array_equal(td_array, NaT_td)
+
+        if na_object is np._NoValue:
+            output_object = 'NaT'
+        else:
+            output_object = na_object
+
+        for arr in [dt_array, td_array]:
+            assert_array_equal(
+                arr.astype(dtype),
+                np.array([output_object] * arr.size, dtype=dtype))
+
+
+def test_nat_conversion():
+    for nat in [np.datetime64("NaT", "s"), np.timedelta64("NaT", "s")]:
+        with pytest.raises(ValueError, match="string coercion is disabled"):
+            np.array(["a", nat], dtype=StringDType(coerce=False))
+
+
+def test_growing_strings(dtype):
+    # growing a string leads to a heap allocation, this tests to make sure
+    # we do that bookkeeping correctly for all possible starting cases
+    data = [
+        "hello",  # a short string
+        "abcdefghijklmnopqestuvwxyz",  # a medium heap-allocated string
+        "hello" * 200,  # a long heap-allocated string
+    ]
+
+    arr = np.array(data, dtype=dtype)
+    uarr = np.array(data, dtype=str)
+
+    for _ in range(5):
+        arr = arr + arr
+        uarr = uarr + uarr
+
+    assert_array_equal(arr, uarr)
+
+
+def test_assign_medium_strings():
+    # see gh-29261
+    N = 9
+    src = np.array(
+        (
+            ['0' * 256] * 3 + ['0' * 255] + ['0' * 256] + ['0' * 255] +
+            ['0' * 256] * 2 + ['0' * 255]
+        ), dtype='T')
+    dst = np.array(
+        (
+            ['0' * 255] + ['0' * 256] * 2 + ['0' * 255] + ['0' * 256] +
+            ['0' * 255] + [''] * 5
+        ), dtype='T')
+
+    dst[1:N + 1] = src
+    assert_array_equal(dst[1:N + 1], src)
+
+
+UFUNC_TEST_DATA = [
+    "hello" * 10,
+    "Ae¢☃€ 😊" * 20,
+    "entry\nwith\nnewlines",
+    "entry\twith\ttabs",
+]
+
+
+@pytest.fixture
+def string_array(dtype):
+    return np.array(UFUNC_TEST_DATA, dtype=dtype)
+
+
+@pytest.fixture
+def unicode_array():
+    return np.array(UFUNC_TEST_DATA, dtype=np.str_)
+
+
+NAN_PRESERVING_FUNCTIONS = [
+    "capitalize",
+    "expandtabs",
+    "lower",
+    "lstrip",
+    "rstrip",
+    "splitlines",
+    "strip",
+    "swapcase",
+    "title",
+    "upper",
+]
+
+BOOL_OUTPUT_FUNCTIONS = [
+    "isalnum",
+    "isalpha",
+    "isdigit",
+    "islower",
+    "isspace",
+    "istitle",
+    "isupper",
+    "isnumeric",
+    "isdecimal",
+]
+
+UNARY_FUNCTIONS = [
+    "str_len",
+    "capitalize",
+    "expandtabs",
+    "isalnum",
+    "isalpha",
+    "isdigit",
+    "islower",
+    "isspace",
+    "istitle",
+    "isupper",
+    "lower",
+    "lstrip",
+    "rstrip",
+    "splitlines",
+    "strip",
+    "swapcase",
+    "title",
+    "upper",
+    "isnumeric",
+    "isdecimal",
+    "isalnum",
+    "islower",
+    "istitle",
+    "isupper",
+]
+
+UNIMPLEMENTED_VEC_STRING_FUNCTIONS = [
+    "capitalize",
+    "expandtabs",
+    "lower",
+    "splitlines",
+    "swapcase",
+    "title",
+    "upper",
+]
+
+ONLY_IN_NP_CHAR = [
+    "join",
+    "split",
+    "rsplit",
+    "splitlines"
+]
+
+
+@pytest.mark.parametrize("function_name", UNARY_FUNCTIONS)
+def test_unary(string_array, unicode_array, function_name):
+    if function_name in ONLY_IN_NP_CHAR:
+        func = getattr(np.char, function_name)
+    else:
+        func = getattr(np.strings, function_name)
+    dtype = string_array.dtype
+    sres = func(string_array)
+    ures = func(unicode_array)
+    if sres.dtype == StringDType():
+        ures = ures.astype(StringDType())
+    assert_array_equal(sres, ures)
+
+    if not hasattr(dtype, "na_object"):
+        return
+
+    is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0]
+    is_str = isinstance(dtype.na_object, str)
+    na_arr = np.insert(string_array, 0, dtype.na_object)
+
+    if function_name in UNIMPLEMENTED_VEC_STRING_FUNCTIONS:
+        if not is_str:
+            # to avoid these errors we'd need to add NA support to _vec_string
+            with pytest.raises((ValueError, TypeError)):
+                func(na_arr)
+        elif function_name == "splitlines":
+            assert func(na_arr)[0] == func(dtype.na_object)[()]
+        else:
+            assert func(na_arr)[0] == func(dtype.na_object)
+        return
+    if function_name == "str_len" and not is_str:
+        # str_len always errors for any non-string null, even NA ones because
+        # it has an integer result
+        with pytest.raises(ValueError):
+            func(na_arr)
+        return
+    if function_name in BOOL_OUTPUT_FUNCTIONS:
+        if is_nan:
+            assert func(na_arr)[0] is np.False_
+        elif is_str:
+            assert func(na_arr)[0] == func(dtype.na_object)
+        else:
+            with pytest.raises(ValueError):
+                func(na_arr)
+        return
+    if not (is_nan or is_str):
+        with pytest.raises(ValueError):
+            func(na_arr)
+        return
+    res = func(na_arr)
+    if is_nan and function_name in NAN_PRESERVING_FUNCTIONS:
+        assert res[0] is dtype.na_object
+    elif is_str:
+        assert res[0] == func(dtype.na_object)
+
+
+unicode_bug_fail = pytest.mark.xfail(
+    reason="unicode output width is buggy", strict=True
+)
+
+# None means that the argument is a string array
+BINARY_FUNCTIONS = [
+    ("add", (None, None)),
+    ("multiply", (None, 2)),
+    ("mod", ("format: %s", None)),
+    ("center", (None, 25)),
+    ("count", (None, "A")),
+    ("encode", (None, "UTF-8")),
+    ("endswith", (None, "lo")),
+    ("find", (None, "A")),
+    ("index", (None, "e")),
+    ("join", ("-", None)),
+    ("ljust", (None, 12)),
+    ("lstrip", (None, "A")),
+    ("partition", (None, "A")),
+    ("replace", (None, "A", "B")),
+    ("rfind", (None, "A")),
+    ("rindex", (None, "e")),
+    ("rjust", (None, 12)),
+    ("rsplit", (None, "A")),
+    ("rstrip", (None, "A")),
+    ("rpartition", (None, "A")),
+    ("split", (None, "A")),
+    ("strip", (None, "A")),
+    ("startswith", (None, "A")),
+    ("zfill", (None, 12)),
+]
+
+PASSES_THROUGH_NAN_NULLS = [
+    "add",
+    "center",
+    "ljust",
+    "multiply",
+    "replace",
+    "rjust",
+    "strip",
+    "lstrip",
+    "rstrip",
+    "replace"
+    "zfill",
+]
+
+NULLS_ARE_FALSEY = [
+    "startswith",
+    "endswith",
+]
+
+NULLS_ALWAYS_ERROR = [
+    "count",
+    "find",
+    "rfind",
+]
+
+SUPPORTS_NULLS = (
+    PASSES_THROUGH_NAN_NULLS +
+    NULLS_ARE_FALSEY +
+    NULLS_ALWAYS_ERROR
+)
+
+
+def call_func(func, args, array, sanitize=True):
+    if args == (None, None):
+        return func(array, array)
+    if args[0] is None:
+        if sanitize:
+            san_args = tuple(
+                np.array(arg, dtype=array.dtype) if isinstance(arg, str) else
+                arg for arg in args[1:]
+            )
+        else:
+            san_args = args[1:]
+        return func(array, *san_args)
+    if args[1] is None:
+        return func(args[0], array)
+    # shouldn't ever happen
+    assert 0
+
+
+@pytest.mark.parametrize("function_name, args", BINARY_FUNCTIONS)
+def test_binary(string_array, unicode_array, function_name, args):
+    if function_name in ONLY_IN_NP_CHAR:
+        func = getattr(np.char, function_name)
+    else:
+        func = getattr(np.strings, function_name)
+    sres = call_func(func, args, string_array)
+    ures = call_func(func, args, unicode_array, sanitize=False)
+    if not isinstance(sres, tuple) and sres.dtype == StringDType():
+        ures = ures.astype(StringDType())
+    assert_array_equal(sres, ures)
+
+    dtype = string_array.dtype
+    if function_name not in SUPPORTS_NULLS or not hasattr(dtype, "na_object"):
+        return
+
+    na_arr = np.insert(string_array, 0, dtype.na_object)
+    is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0]
+    is_str = isinstance(dtype.na_object, str)
+    should_error = not (is_nan or is_str)
+
+    if (
+        (function_name in NULLS_ALWAYS_ERROR and not is_str)
+        or (function_name in PASSES_THROUGH_NAN_NULLS and should_error)
+        or (function_name in NULLS_ARE_FALSEY and should_error)
+    ):
+        with pytest.raises((ValueError, TypeError)):
+            call_func(func, args, na_arr)
+        return
+
+    res = call_func(func, args, na_arr)
+
+    if is_str:
+        assert res[0] == call_func(func, args, na_arr[:1])
+    elif function_name in NULLS_ARE_FALSEY:
+        assert res[0] is np.False_
+    elif function_name in PASSES_THROUGH_NAN_NULLS:
+        assert res[0] is dtype.na_object
+    else:
+        # shouldn't ever get here
+        assert 0
+
+
+@pytest.mark.parametrize("function, expected", [
+    (np.strings.find, [[2, -1], [1, -1]]),
+    (np.strings.startswith, [[False, False], [True, False]])])
+@pytest.mark.parametrize("start, stop", [
+    (1, 4),
+    (np.int8(1), np.int8(4)),
+    (np.array([1, 1], dtype='u2'), np.array([4, 4], dtype='u2'))])
+def test_non_default_start_stop(function, start, stop, expected):
+    a = np.array([["--🐍--", "--🦜--"],
+                  ["-🐍---", "-🦜---"]], "T")
+    indx = function(a, "🐍", start, stop)
+    assert_array_equal(indx, expected)
+
+
+@pytest.mark.parametrize("count", [2, np.int8(2), np.array([2, 2], 'u2')])
+def test_replace_non_default_repeat(count):
+    a = np.array(["🐍--", "🦜-🦜-"], "T")
+    result = np.strings.replace(a, "🦜-", "🦜†", count)
+    assert_array_equal(result, np.array(["🐍--", "🦜†🦜†"], "T"))
+
+
+def test_strip_ljust_rjust_consistency(string_array, unicode_array):
+    rjs = np.char.rjust(string_array, 1000)
+    rju = np.char.rjust(unicode_array, 1000)
+
+    ljs = np.char.ljust(string_array, 1000)
+    lju = np.char.ljust(unicode_array, 1000)
+
+    assert_array_equal(
+        np.char.lstrip(rjs),
+        np.char.lstrip(rju).astype(StringDType()),
+    )
+
+    assert_array_equal(
+        np.char.rstrip(ljs),
+        np.char.rstrip(lju).astype(StringDType()),
+    )
+
+    assert_array_equal(
+        np.char.strip(ljs),
+        np.char.strip(lju).astype(StringDType()),
+    )
+
+    assert_array_equal(
+        np.char.strip(rjs),
+        np.char.strip(rju).astype(StringDType()),
+    )
+
+
+def test_unset_na_coercion():
+    # a dtype instance with an unset na object is compatible
+    # with a dtype that has one set
+
+    # this test uses the "add" and "equal" ufunc but all ufuncs that
+    # accept more than one string argument and produce a string should
+    # behave this way
+    # TODO: generalize to more ufuncs
+    inp = ["hello", "world"]
+    arr = np.array(inp, dtype=StringDType(na_object=None))
+    for op_dtype in [None, StringDType(), StringDType(coerce=False),
+                     StringDType(na_object=None)]:
+        if op_dtype is None:
+            op = "2"
+        else:
+            op = np.array("2", dtype=op_dtype)
+        res = arr + op
+        assert_array_equal(res, ["hello2", "world2"])
+
+    # dtype instances with distinct explicitly set NA objects are incompatible
+    for op_dtype in [StringDType(na_object=pd_NA), StringDType(na_object="")]:
+        op = np.array("2", dtype=op_dtype)
+        with pytest.raises(TypeError):
+            arr + op
+
+    # comparisons only consider the na_object
+    for op_dtype in [None, StringDType(), StringDType(coerce=True),
+                     StringDType(na_object=None)]:
+        if op_dtype is None:
+            op = inp
+        else:
+            op = np.array(inp, dtype=op_dtype)
+        assert_array_equal(arr, op)
+
+    for op_dtype in [StringDType(na_object=pd_NA),
+                     StringDType(na_object=np.nan)]:
+        op = np.array(inp, dtype=op_dtype)
+        with pytest.raises(TypeError):
+            arr == op
+
+
+def test_repeat(string_array):
+    res = string_array.repeat(1000)
+    # Create an empty array with expanded dimension, and fill it.  Then,
+    # reshape it to the expected result.
+    expected = np.empty_like(string_array, shape=string_array.shape + (1000,))
+    expected[...] = string_array[:, np.newaxis]
+    expected = expected.reshape(-1)
+
+    assert_array_equal(res, expected, strict=True)
+
+
+@pytest.mark.parametrize("tile", [1, 6, (2, 5)])
+def test_accumulation(string_array, tile):
+    """Accumulation is odd for StringDType but tests dtypes with references.
+    """
+    # Fill with mostly empty strings to not create absurdly big strings
+    arr = np.zeros_like(string_array, shape=(100,))
+    arr[:len(string_array)] = string_array
+    arr[-len(string_array):] = string_array
+
+    # Bloat size a bit (get above thresholds and test >1 ndim).
+    arr = np.tile(string_array, tile)
+
+    res = np.add.accumulate(arr, axis=0)
+    res_obj = np.add.accumulate(arr.astype(object), axis=0)
+    assert_array_equal(res, res_obj.astype(arr.dtype), strict=True)
+
+    if arr.ndim > 1:
+        res = np.add.accumulate(arr, axis=-1)
+        res_obj = np.add.accumulate(arr.astype(object), axis=-1)
+
+        assert_array_equal(res, res_obj.astype(arr.dtype), strict=True)
+
+
+class TestImplementation:
+    """Check that strings are stored in the arena when possible.
+
+    This tests implementation details, so should be adjusted if
+    the implementation changes.
+    """
+
+    @classmethod
+    def setup_class(cls):
+        cls.MISSING = 0x80
+        cls.INITIALIZED = 0x40
+        cls.OUTSIDE_ARENA = 0x20
+        cls.LONG = 0x10
+        cls.dtype = StringDType(na_object=np.nan)
+        cls.sizeofstr = cls.dtype.itemsize
+        sp = cls.dtype.itemsize // 2  # pointer size = sizeof(size_t)
+        # Below, size is not strictly correct, since it really uses
+        # 7 (or 3) bytes, but good enough for the tests here.
+        cls.view_dtype = np.dtype([
+            ('offset', f'u{sp}'),
+            ('size', f'u{sp // 2}'),
+            ('xsiz', f'V{sp // 2 - 1}'),
+            ('size_and_flags', 'u1'),
+        ] if sys.byteorder == 'little' else [
+            ('size_and_flags', 'u1'),
+            ('xsiz', f'V{sp // 2 - 1}'),
+            ('size', f'u{sp // 2}'),
+            ('offset', f'u{sp}'),
+        ])
+        cls.s_empty = ""
+        cls.s_short = "01234"
+        cls.s_medium = "abcdefghijklmnopqrstuvwxyz"
+        cls.s_long = "-=+" * 100
+        cls.a = np.array(
+            [cls.s_empty, cls.s_short, cls.s_medium, cls.s_long],
+            cls.dtype)
+
+    def get_view(self, a):
+        # Cannot view a StringDType as anything else directly, since
+        # it has references. So, we use a stride trick hack.
+        from numpy.lib._stride_tricks_impl import DummyArray
+        interface = dict(a.__array_interface__)
+        interface['descr'] = self.view_dtype.descr
+        interface['typestr'] = self.view_dtype.str
+        return np.asarray(DummyArray(interface, base=a))
+
+    def get_flags(self, a):
+        return self.get_view(a)['size_and_flags'] & 0xf0
+
+    def is_short(self, a):
+        return self.get_flags(a) == self.INITIALIZED | self.OUTSIDE_ARENA
+
+    def is_on_heap(self, a):
+        return self.get_flags(a) == (self.INITIALIZED
+                                     | self.OUTSIDE_ARENA
+                                     | self.LONG)
+
+    def is_missing(self, a):
+        return self.get_flags(a) & self.MISSING == self.MISSING
+
+    def in_arena(self, a):
+        return (self.get_flags(a) & (self.INITIALIZED | self.OUTSIDE_ARENA)
+                == self.INITIALIZED)
+
+    def test_setup(self):
+        is_short = self.is_short(self.a)
+        length = np.strings.str_len(self.a)
+        assert_array_equal(is_short, (length > 0) & (length <= 15))
+        assert_array_equal(self.in_arena(self.a), [False, False, True, True])
+        assert_array_equal(self.is_on_heap(self.a), False)
+        assert_array_equal(self.is_missing(self.a), False)
+        view = self.get_view(self.a)
+        sizes = np.where(is_short, view['size_and_flags'] & 0xf,
+                         view['size'])
+        assert_array_equal(sizes, np.strings.str_len(self.a))
+        assert_array_equal(view['xsiz'][2:],
+                           np.void(b'\x00' * (self.sizeofstr // 4 - 1)))
+        # Check that the medium string uses only 1 byte for its length
+        # in the arena, while the long string takes 8 (or 4).
+        offsets = view['offset']
+        assert offsets[2] == 1
+        assert offsets[3] == 1 + len(self.s_medium) + self.sizeofstr // 2
+
+    def test_empty(self):
+        e = np.empty((3,), self.dtype)
+        assert_array_equal(self.get_flags(e), 0)
+        assert_array_equal(e, "")
+
+    def test_zeros(self):
+        z = np.zeros((2,), self.dtype)
+        assert_array_equal(self.get_flags(z), 0)
+        assert_array_equal(z, "")
+
+    def test_copy(self):
+        for c in [self.a.copy(), copy.copy(self.a), copy.deepcopy(self.a)]:
+            assert_array_equal(self.get_flags(c), self.get_flags(self.a))
+            assert_array_equal(c, self.a)
+            offsets = self.get_view(c)['offset']
+            assert offsets[2] == 1
+            assert offsets[3] == 1 + len(self.s_medium) + self.sizeofstr // 2
+
+    def test_arena_use_with_setting(self):
+        c = np.zeros_like(self.a)
+        assert_array_equal(self.get_flags(c), 0)
+        c[:] = self.a
+        assert_array_equal(self.get_flags(c), self.get_flags(self.a))
+        assert_array_equal(c, self.a)
+
+    def test_arena_reuse_with_setting(self):
+        c = self.a.copy()
+        c[:] = self.a
+        assert_array_equal(self.get_flags(c), self.get_flags(self.a))
+        assert_array_equal(c, self.a)
+
+    def test_arena_reuse_after_missing(self):
+        c = self.a.copy()
+        c[:] = np.nan
+        assert np.all(self.is_missing(c))
+        # Replacing with the original strings, the arena should be reused.
+        c[:] = self.a
+        assert_array_equal(self.get_flags(c), self.get_flags(self.a))
+        assert_array_equal(c, self.a)
+
+    def test_arena_reuse_after_empty(self):
+        c = self.a.copy()
+        c[:] = ""
+        assert_array_equal(c, "")
+        # Replacing with the original strings, the arena should be reused.
+        c[:] = self.a
+        assert_array_equal(self.get_flags(c), self.get_flags(self.a))
+        assert_array_equal(c, self.a)
+
+    def test_arena_reuse_for_shorter(self):
+        c = self.a.copy()
+        # A string slightly shorter than the shortest in the arena
+        # should be used for all strings in the arena.
+        c[:] = self.s_medium[:-1]
+        assert_array_equal(c, self.s_medium[:-1])
+        # first empty string in original was never initialized, so
+        # filling it in now leaves it initialized inside the arena.
+        # second string started as a short string so it can never live
+        # in the arena.
+        in_arena = np.array([True, False, True, True])
+        assert_array_equal(self.in_arena(c), in_arena)
+        # But when a short string is replaced, it will go on the heap.
+        assert_array_equal(self.is_short(c), False)
+        assert_array_equal(self.is_on_heap(c), ~in_arena)
+        # We can put the originals back, and they'll still fit,
+        # and short strings are back as short strings
+        c[:] = self.a
+        assert_array_equal(c, self.a)
+        assert_array_equal(self.in_arena(c), in_arena)
+        assert_array_equal(self.is_short(c), self.is_short(self.a))
+        assert_array_equal(self.is_on_heap(c), False)
+
+    def test_arena_reuse_if_possible(self):
+        c = self.a.copy()
+        # A slightly longer string will not fit in the arena for
+        # the medium string, but will fit for the longer one.
+        c[:] = self.s_medium + "±"
+        assert_array_equal(c, self.s_medium + "±")
+        in_arena_exp = np.strings.str_len(self.a) >= len(self.s_medium) + 1
+        # first entry started uninitialized and empty, so filling it leaves
+        # it in the arena
+        in_arena_exp[0] = True
+        assert not np.all(in_arena_exp == self.in_arena(self.a))
+        assert_array_equal(self.in_arena(c), in_arena_exp)
+        assert_array_equal(self.is_short(c), False)
+        assert_array_equal(self.is_on_heap(c), ~in_arena_exp)
+        # And once outside arena, it stays outside, since offset is lost.
+        # But short strings are used again.
+        c[:] = self.a
+        is_short_exp = self.is_short(self.a)
+        assert_array_equal(c, self.a)
+        assert_array_equal(self.in_arena(c), in_arena_exp)
+        assert_array_equal(self.is_short(c), is_short_exp)
+        assert_array_equal(self.is_on_heap(c), ~in_arena_exp & ~is_short_exp)
+
+    def test_arena_no_reuse_after_short(self):
+        c = self.a.copy()
+        # If we replace a string with a short string, it cannot
+        # go into the arena after because the offset is lost.
+        c[:] = self.s_short
+        assert_array_equal(c, self.s_short)
+        assert_array_equal(self.in_arena(c), False)
+        c[:] = self.a
+        assert_array_equal(c, self.a)
+        assert_array_equal(self.in_arena(c), False)
+        assert_array_equal(self.is_on_heap(c), self.in_arena(self.a))
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_strings.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_strings.py
new file mode 100644
index 0000000000000000000000000000000000000000..2c907a73507011c072fba363312769909826a048
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_strings.py
@@ -0,0 +1,1523 @@
+import operator
+import sys
+
+import pytest
+
+import numpy as np
+from numpy._core._exceptions import _UFuncNoLoopError
+from numpy.testing import IS_PYPY, assert_array_equal, assert_raises
+from numpy.testing._private.utils import requires_memory
+
+COMPARISONS = [
+    (operator.eq, np.equal, "=="),
+    (operator.ne, np.not_equal, "!="),
+    (operator.lt, np.less, "<"),
+    (operator.le, np.less_equal, "<="),
+    (operator.gt, np.greater, ">"),
+    (operator.ge, np.greater_equal, ">="),
+]
+
+MAX = np.iinfo(np.int64).max
+
+IS_PYPY_LT_7_3_16 = IS_PYPY and sys.implementation.version < (7, 3, 16)
+
+@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS)
+def test_mixed_string_comparison_ufuncs_fail(op, ufunc, sym):
+    arr_string = np.array(["a", "b"], dtype="S")
+    arr_unicode = np.array(["a", "c"], dtype="U")
+
+    with pytest.raises(TypeError, match="did not contain a loop"):
+        ufunc(arr_string, arr_unicode)
+
+    with pytest.raises(TypeError, match="did not contain a loop"):
+        ufunc(arr_unicode, arr_string)
+
+@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS)
+def test_mixed_string_comparisons_ufuncs_with_cast(op, ufunc, sym):
+    arr_string = np.array(["a", "b"], dtype="S")
+    arr_unicode = np.array(["a", "c"], dtype="U")
+
+    # While there is no loop, manual casting is acceptable:
+    res1 = ufunc(arr_string, arr_unicode, signature="UU->?", casting="unsafe")
+    res2 = ufunc(arr_string, arr_unicode, signature="SS->?", casting="unsafe")
+
+    expected = op(arr_string.astype("U"), arr_unicode)
+    assert_array_equal(res1, expected)
+    assert_array_equal(res2, expected)
+
+
+@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS)
+@pytest.mark.parametrize("dtypes", [
+        ("S2", "S2"), ("S2", "S10"),
+        ("<U1", "<U1"), ("<U1", ">U1"), (">U1", ">U1"),
+        ("<U1", "<U10"), ("<U1", ">U10")])
+@pytest.mark.parametrize("aligned", [True, False])
+def test_string_comparisons(op, ufunc, sym, dtypes, aligned):
+    # ensure native byte-order for the first view to stay within unicode range
+    native_dt = np.dtype(dtypes[0]).newbyteorder("=")
+    arr = np.arange(2**15).view(native_dt).astype(dtypes[0])
+    if not aligned:
+        # Make `arr` unaligned:
+        new = np.zeros(arr.nbytes + 1, dtype=np.uint8)[1:].view(dtypes[0])
+        new[...] = arr
+        arr = new
+
+    arr2 = arr.astype(dtypes[1], copy=True)
+    np.random.shuffle(arr2)
+    arr[0] = arr2[0]  # make sure one matches
+
+    expected = [op(d1, d2) for d1, d2 in zip(arr.tolist(), arr2.tolist())]
+    assert_array_equal(op(arr, arr2), expected)
+    assert_array_equal(ufunc(arr, arr2), expected)
+    assert_array_equal(
+        np.char.compare_chararrays(arr, arr2, sym, False), expected
+    )
+
+    expected = [op(d2, d1) for d1, d2 in zip(arr.tolist(), arr2.tolist())]
+    assert_array_equal(op(arr2, arr), expected)
+    assert_array_equal(ufunc(arr2, arr), expected)
+    assert_array_equal(
+        np.char.compare_chararrays(arr2, arr, sym, False), expected
+    )
+
+
+@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS)
+@pytest.mark.parametrize("dtypes", [
+        ("S2", "S2"), ("S2", "S10"), ("<U1", "<U1"), ("<U1", ">U10")])
+def test_string_comparisons_empty(op, ufunc, sym, dtypes):
+    arr = np.empty((1, 0, 1, 5), dtype=dtypes[0])
+    arr2 = np.empty((100, 1, 0, 1), dtype=dtypes[1])
+
+    expected = np.empty(np.broadcast_shapes(arr.shape, arr2.shape), dtype=bool)
+    assert_array_equal(op(arr, arr2), expected)
+    assert_array_equal(ufunc(arr, arr2), expected)
+    assert_array_equal(
+        np.char.compare_chararrays(arr, arr2, sym, False), expected
+    )
+
+
+@pytest.mark.parametrize("str_dt", ["S", "U"])
+@pytest.mark.parametrize("float_dt", np.typecodes["AllFloat"])
+def test_float_to_string_cast(str_dt, float_dt):
+    float_dt = np.dtype(float_dt)
+    fi = np.finfo(float_dt)
+    arr = np.array([np.nan, np.inf, -np.inf, fi.max, fi.min], dtype=float_dt)
+    expected = ["nan", "inf", "-inf", str(fi.max), str(fi.min)]
+    if float_dt.kind == "c":
+        expected = [f"({r}+0j)" for r in expected]
+
+    res = arr.astype(str_dt)
+    assert_array_equal(res, np.array(expected, dtype=str_dt))
+
+
+@pytest.mark.parametrize("str_dt", "US")
+@pytest.mark.parametrize("size", [-1, np.iinfo(np.intc).max])
+def test_string_size_dtype_errors(str_dt, size):
+    if size > 0:
+        size = size // np.dtype(f"{str_dt}1").itemsize + 1
+
+    with pytest.raises(ValueError):
+        np.dtype((str_dt, size))
+    with pytest.raises(TypeError):
+        np.dtype(f"{str_dt}{size}")
+
+
+@pytest.mark.parametrize("str_dt", "US")
+def test_string_size_dtype_large_repr(str_dt):
+    size = np.iinfo(np.intc).max // np.dtype(f"{str_dt}1").itemsize
+    size_str = str(size)
+
+    dtype = np.dtype((str_dt, size))
+    assert size_str in dtype.str
+    assert size_str in str(dtype)
+    assert size_str in repr(dtype)
+
+
+@pytest.mark.slow
+@requires_memory(2 * np.iinfo(np.intc).max)
+@pytest.mark.parametrize("str_dt", "US")
+@pytest.mark.thread_unsafe(reason="crashes with low memory")
+def test_large_string_coercion_error(str_dt):
+    very_large = np.iinfo(np.intc).max // np.dtype(f"{str_dt}1").itemsize
+    try:
+        large_string = "A" * (very_large + 1)
+    except Exception:
+        # We may not be able to create this Python string on 32bit.
+        pytest.skip("python failed to create huge string")
+
+    class MyStr:
+        def __str__(self):
+            return large_string
+
+    try:
+        # TypeError from NumPy, or OverflowError from 32bit Python.
+        with pytest.raises((TypeError, OverflowError)):
+            np.array([large_string], dtype=str_dt)
+
+        # Same as above, but input has to be converted to a string.
+        with pytest.raises((TypeError, OverflowError)):
+            np.array([MyStr()], dtype=str_dt)
+    except MemoryError:
+        # Catch memory errors, because `requires_memory` would do so.
+        raise AssertionError("Ops should raise before any large allocation.")
+
+@pytest.mark.slow
+@requires_memory(2 * np.iinfo(np.intc).max)
+@pytest.mark.parametrize("str_dt", "US")
+@pytest.mark.thread_unsafe(reason="crashes with low memory")
+def test_large_string_addition_error(str_dt):
+    very_large = np.iinfo(np.intc).max // np.dtype(f"{str_dt}1").itemsize
+
+    a = np.array(["A" * very_large], dtype=str_dt)
+    b = np.array("B", dtype=str_dt)
+    try:
+        with pytest.raises(TypeError):
+            np.add(a, b)
+        with pytest.raises(TypeError):
+            np.add(a, a)
+    except MemoryError:
+        # Catch memory errors, because `requires_memory` would do so.
+        raise AssertionError("Ops should raise before any large allocation.")
+
+
+def test_large_string_cast():
+    very_large = np.iinfo(np.intc).max // 4
+    # Could be nice to test very large path, but it makes too many huge
+    # allocations right now (need non-legacy cast loops for this).
+    # a = np.array([], dtype=np.dtype(("S", very_large)))
+    # assert a.astype("U").dtype.itemsize == very_large * 4
+
+    a = np.array([], dtype=np.dtype(("S", very_large + 1)))
+    # It is not perfect but OK if this raises a MemoryError during setup
+    # (this happens due clunky code and/or buffer setup.)
+    with pytest.raises((TypeError, MemoryError)):
+        a.astype("U")
+
+
+@pytest.mark.parametrize("dt", ["S1", "U1"])
+def test_in_place_mutiply_no_overflow(dt):
+    # see gh-30495
+    a = np.array("a", dtype=dt)
+    a *= 20
+    assert_array_equal(a, np.array("a", dtype=dt))
+
+
+@pytest.mark.parametrize("dt", ["S", "U", "T"])
+class TestMethods:
+
+    @pytest.mark.parametrize("in1,in2,out", [
+        ("", "", ""),
+        ("abc", "abc", "abcabc"),
+        ("12345", "12345", "1234512345"),
+        ("MixedCase", "MixedCase", "MixedCaseMixedCase"),
+        ("12345 \0 ", "12345 \0 ", "12345 \0 12345 \0 "),
+        ("UPPER", "UPPER", "UPPERUPPER"),
+        (["abc", "def"], ["hello", "world"], ["abchello", "defworld"]),
+    ])
+    def test_add(self, in1, in2, out, dt):
+        in1 = np.array(in1, dtype=dt)
+        in2 = np.array(in2, dtype=dt)
+        out = np.array(out, dtype=dt)
+        assert_array_equal(np.strings.add(in1, in2), out)
+
+    @pytest.mark.parametrize("in1,in2,out", [
+        ("abc", 3, "abcabcabc"),
+        ("abc", 0, ""),
+        ("abc", -1, ""),
+        (["abc", "def"], [1, 4], ["abc", "defdefdefdef"]),
+    ])
+    def test_multiply(self, in1, in2, out, dt):
+        in1 = np.array(in1, dtype=dt)
+        out = np.array(out, dtype=dt)
+        assert_array_equal(np.strings.multiply(in1, in2), out)
+
+    def test_multiply_raises(self, dt):
+        with pytest.raises(TypeError, match="unsupported type"):
+            np.strings.multiply(np.array("abc", dtype=dt), 3.14)
+
+        with pytest.raises(OverflowError):
+            np.strings.multiply(np.array("abc", dtype=dt), sys.maxsize)
+
+    def test_inplace_multiply(self, dt):
+        arr = np.array(['foo ', 'bar'], dtype=dt)
+        arr *= 2
+        if dt != "T":
+            assert_array_equal(arr, np.array(['foo ', 'barb'], dtype=dt))
+        else:
+            assert_array_equal(arr, ['foo foo ', 'barbar'])
+
+        with pytest.raises(OverflowError):
+            arr *= sys.maxsize
+
+    @pytest.mark.parametrize("i_dt", [np.int8, np.int16, np.int32,
+                                      np.int64, np.int_])
+    def test_multiply_integer_dtypes(self, i_dt, dt):
+        a = np.array("abc", dtype=dt)
+        i = np.array(3, dtype=i_dt)
+        res = np.array("abcabcabc", dtype=dt)
+        assert_array_equal(np.strings.multiply(a, i), res)
+
+    @pytest.mark.parametrize("in_,out", [
+        ("", False),
+        ("a", True),
+        ("A", True),
+        ("\n", False),
+        ("abc", True),
+        ("aBc123", False),
+        ("abc\n", False),
+        (["abc", "aBc123"], [True, False]),
+    ])
+    def test_isalpha(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isalpha(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('', False),
+        ('a', True),
+        ('A', True),
+        ('\n', False),
+        ('123abc456', True),
+        ('a1b3c', True),
+        ('aBc000 ', False),
+        ('abc\n', False),
+    ])
+    def test_isalnum(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isalnum(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ("", False),
+        ("a", False),
+        ("0", True),
+        ("012345", True),
+        ("012345a", False),
+        (["a", "012345"], [False, True]),
+    ])
+    def test_isdigit(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isdigit(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ("", False),
+        ("a", False),
+        ("1", False),
+        (" ", True),
+        ("\t", True),
+        ("\r", True),
+        ("\n", True),
+        (" \t\r \n", True),
+        (" \t\r\na", False),
+        (["\t1", " \t\r \n"], [False, True])
+    ])
+    def test_isspace(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isspace(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('', False),
+        ('a', True),
+        ('A', False),
+        ('\n', False),
+        ('abc', True),
+        ('aBc', False),
+        ('abc\n', True),
+    ])
+    def test_islower(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.islower(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('', False),
+        ('a', False),
+        ('A', True),
+        ('\n', False),
+        ('ABC', True),
+        ('AbC', False),
+        ('ABC\n', True),
+    ])
+    def test_isupper(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isupper(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('', False),
+        ('a', False),
+        ('A', True),
+        ('\n', False),
+        ('A Titlecased Line', True),
+        ('A\nTitlecased Line', True),
+        ('A Titlecased, Line', True),
+        ('Not a capitalized String', False),
+        ('Not\ta Titlecase String', False),
+        ('Not--a Titlecase String', False),
+        ('NOT', False),
+    ])
+    def test_istitle(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.istitle(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ("", 0),
+        ("abc", 3),
+        ("12345", 5),
+        ("MixedCase", 9),
+        ("12345 \x00 ", 8),
+        ("UPPER", 5),
+        (["abc", "12345 \x00 "], [3, 8]),
+    ])
+    def test_str_len(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.str_len(in_), out)
+
+    @pytest.mark.parametrize("a,sub,start,end,out", [
+        ("abcdefghiabc", "abc", 0, None, 0),
+        ("abcdefghiabc", "abc", 1, None, 9),
+        ("abcdefghiabc", "def", 4, None, -1),
+        ("abc", "", 0, None, 0),
+        ("abc", "", 3, None, 3),
+        ("abc", "", 4, None, -1),
+        ("rrarrrrrrrrra", "a", 0, None, 2),
+        ("rrarrrrrrrrra", "a", 4, None, 12),
+        ("rrarrrrrrrrra", "a", 4, 6, -1),
+        ("", "", 0, None, 0),
+        ("", "", 1, 1, -1),
+        ("", "", MAX, 0, -1),
+        ("", "xx", 0, None, -1),
+        ("", "xx", 1, 1, -1),
+        ("", "xx", MAX, 0, -1),
+        pytest.param(99 * "a" + "b", "b", 0, None, 99,
+                     id="99*a+b-b-0-None-99"),
+        pytest.param(98 * "a" + "ba", "ba", 0, None, 98,
+                     id="98*a+ba-ba-0-None-98"),
+        pytest.param(100 * "a", "b", 0, None, -1,
+                     id="100*a-b-0-None--1"),
+        pytest.param(30000 * "a" + 100 * "b", 100 * "b", 0, None, 30000,
+                     id="30000*a+100*b-100*b-0-None-30000"),
+        pytest.param(30000 * "a", 100 * "b", 0, None, -1,
+                     id="30000*a-100*b-0-None--1"),
+        pytest.param(15000 * "a" + 15000 * "b", 15000 * "b", 0, None, 15000,
+                     id="15000*a+15000*b-15000*b-0-None-15000"),
+        pytest.param(15000 * "a" + 15000 * "b", 15000 * "c", 0, None, -1,
+                     id="15000*a+15000*b-15000*c-0-None--1"),
+        (["abcdefghiabc", "rrarrrrrrrrra"], ["def", "arr"], [0, 3],
+         None, [3, -1]),
+        ("Ae¢☃€ 😊" * 2, "😊", 0, None, 6),
+        ("Ae¢☃€ 😊" * 2, "😊", 7, None, 13),
+        pytest.param("A" * (2 ** 17), r"[\w]+\Z", 0, None, -1,
+                     id=r"A*2**17-[\w]+\Z-0-None--1"),
+    ])
+    def test_find(self, a, sub, start, end, out, dt):
+        if "😊" in a and dt == "S":
+            pytest.skip("Bytes dtype does not support non-ascii input")
+        a = np.array(a, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        assert_array_equal(np.strings.find(a, sub, start, end), out)
+
+    @pytest.mark.parametrize("a,sub,start,end,out", [
+        ("abcdefghiabc", "abc", 0, None, 9),
+        ("abcdefghiabc", "", 0, None, 12),
+        ("abcdefghiabc", "abcd", 0, None, 0),
+        ("abcdefghiabc", "abcz", 0, None, -1),
+        ("abc", "", 0, None, 3),
+        ("abc", "", 3, None, 3),
+        ("abc", "", 4, None, -1),
+        ("rrarrrrrrrrra", "a", 0, None, 12),
+        ("rrarrrrrrrrra", "a", 4, None, 12),
+        ("rrarrrrrrrrra", "a", 4, 6, -1),
+        (["abcdefghiabc", "rrarrrrrrrrra"], ["abc", "a"], [0, 0],
+         None, [9, 12]),
+        ("Ae¢☃€ 😊" * 2, "😊", 0, None, 13),
+        ("Ae¢☃€ 😊" * 2, "😊", 0, 7, 6),
+    ])
+    def test_rfind(self, a, sub, start, end, out, dt):
+        if "😊" in a and dt == "S":
+            pytest.skip("Bytes dtype does not support non-ascii input")
+        a = np.array(a, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        assert_array_equal(np.strings.rfind(a, sub, start, end), out)
+
+    @pytest.mark.parametrize("a,sub,start,end,out", [
+        ("aaa", "a", 0, None, 3),
+        ("aaa", "b", 0, None, 0),
+        ("aaa", "a", 1, None, 2),
+        ("aaa", "a", 10, None, 0),
+        ("aaa", "a", -1, None, 1),
+        ("aaa", "a", -10, None, 3),
+        ("aaa", "a", 0, 1, 1),
+        ("aaa", "a", 0, 10, 3),
+        ("aaa", "a", 0, -1, 2),
+        ("aaa", "a", 0, -10, 0),
+        ("aaa", "", 1, None, 3),
+        ("aaa", "", 3, None, 1),
+        ("aaa", "", 10, None, 0),
+        ("aaa", "", -1, None, 2),
+        ("aaa", "", -10, None, 4),
+        ("aaa", "aaaa", 0, None, 0),
+        pytest.param(98 * "a" + "ba", "ba", 0, None, 1,
+                     id="98*a+ba-ba-0-None-1"),
+        pytest.param(30000 * "a" + 100 * "b", 100 * "b", 0, None, 1,
+                     id="30000*a+100*b-100*b-0-None-1"),
+        pytest.param(30000 * "a", 100 * "b", 0, None, 0,
+                     id="30000*a-100*b-0-None-0"),
+        pytest.param(30000 * "a" + 100 * "ab", "ab", 0, None, 100,
+                     id="30000*a+100*ab-ab-0-None-100"),
+        pytest.param(15000 * "a" + 15000 * "b", 15000 * "b", 0, None, 1,
+                     id="15000*a+15000*b-15000*b-0-None-1"),
+        pytest.param(15000 * "a" + 15000 * "b", 15000 * "c", 0, None, 0,
+                     id="15000*a+15000*b-15000*c-0-None-0"),
+        ("", "", 0, None, 1),
+        ("", "", 1, 1, 0),
+        ("", "", MAX, 0, 0),
+        ("", "xx", 0, None, 0),
+        ("", "xx", 1, 1, 0),
+        ("", "xx", MAX, 0, 0),
+        (["aaa", ""], ["a", ""], [0, 0], None, [3, 1]),
+        ("Ae¢☃€ 😊" * 100, "😊", 0, None, 100),
+    ])
+    def test_count(self, a, sub, start, end, out, dt):
+        if "😊" in a and dt == "S":
+            pytest.skip("Bytes dtype does not support non-ascii input")
+        a = np.array(a, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        assert_array_equal(np.strings.count(a, sub, start, end), out)
+
+    @pytest.mark.parametrize("a,prefix,start,end,out", [
+        ("hello", "he", 0, None, True),
+        ("hello", "hello", 0, None, True),
+        ("hello", "hello world", 0, None, False),
+        ("hello", "", 0, None, True),
+        ("hello", "ello", 0, None, False),
+        ("hello", "ello", 1, None, True),
+        ("hello", "o", 4, None, True),
+        ("hello", "o", 5, None, False),
+        ("hello", "", 5, None, True),
+        ("hello", "lo", 6, None, False),
+        ("helloworld", "lowo", 3, None, True),
+        ("helloworld", "lowo", 3, 7, True),
+        ("helloworld", "lowo", 3, 6, False),
+        ("", "", 0, 1, True),
+        ("", "", 0, 0, True),
+        ("", "", 1, 0, False),
+        ("hello", "he", 0, -1, True),
+        ("hello", "he", -53, -1, True),
+        ("hello", "hello", 0, -1, False),
+        ("hello", "hello world", -1, -10, False),
+        ("hello", "ello", -5, None, False),
+        ("hello", "ello", -4, None, True),
+        ("hello", "o", -2, None, False),
+        ("hello", "o", -1, None, True),
+        ("hello", "", -3, -3, True),
+        ("hello", "lo", -9, None, False),
+        (["hello", ""], ["he", ""], [0, 0], None, [True, True]),
+    ])
+    def test_startswith(self, a, prefix, start, end, out, dt):
+        a = np.array(a, dtype=dt)
+        prefix = np.array(prefix, dtype=dt)
+        assert_array_equal(np.strings.startswith(a, prefix, start, end), out)
+
+    @pytest.mark.parametrize("a,suffix,start,end,out", [
+        ("hello", "lo", 0, None, True),
+        ("hello", "he", 0, None, False),
+        ("hello", "", 0, None, True),
+        ("hello", "hello world", 0, None, False),
+        ("helloworld", "worl", 0, None, False),
+        ("helloworld", "worl", 3, 9, True),
+        ("helloworld", "world", 3, 12, True),
+        ("helloworld", "lowo", 1, 7, True),
+        ("helloworld", "lowo", 2, 7, True),
+        ("helloworld", "lowo", 3, 7, True),
+        ("helloworld", "lowo", 4, 7, False),
+        ("helloworld", "lowo", 3, 8, False),
+        ("ab", "ab", 0, 1, False),
+        ("ab", "ab", 0, 0, False),
+        ("", "", 0, 1, True),
+        ("", "", 0, 0, True),
+        ("", "", 1, 0, False),
+        ("hello", "lo", -2, None, True),
+        ("hello", "he", -2, None, False),
+        ("hello", "", -3, -3, True),
+        ("hello", "hello world", -10, -2, False),
+        ("helloworld", "worl", -6, None, False),
+        ("helloworld", "worl", -5, -1, True),
+        ("helloworld", "worl", -5, 9, True),
+        ("helloworld", "world", -7, 12, True),
+        ("helloworld", "lowo", -99, -3, True),
+        ("helloworld", "lowo", -8, -3, True),
+        ("helloworld", "lowo", -7, -3, True),
+        ("helloworld", "lowo", 3, -4, False),
+        ("helloworld", "lowo", -8, -2, False),
+        (["hello", "helloworld"], ["lo", "worl"], [0, -6], None,
+         [True, False]),
+    ])
+    def test_endswith(self, a, suffix, start, end, out, dt):
+        a = np.array(a, dtype=dt)
+        suffix = np.array(suffix, dtype=dt)
+        assert_array_equal(np.strings.endswith(a, suffix, start, end), out)
+
+    @pytest.mark.parametrize("a,chars,out", [
+        ("", None, ""),
+        ("   hello   ", None, "hello   "),
+        ("hello", None, "hello"),
+        (" \t\n\r\f\vabc \t\n\r\f\v", None, "abc \t\n\r\f\v"),
+        (["   hello   ", "hello"], None, ["hello   ", "hello"]),
+        ("", "", ""),
+        ("", "xyz", ""),
+        ("hello", "", "hello"),
+        ("xyzzyhelloxyzzy", "xyz", "helloxyzzy"),
+        ("hello", "xyz", "hello"),
+        ("xyxz", "xyxz", ""),
+        ("xyxzx", "x", "yxzx"),
+        (["xyzzyhelloxyzzy", "hello"], ["xyz", "xyz"],
+         ["helloxyzzy", "hello"]),
+        (["ba", "ac", "baa", "bba"], "b", ["a", "ac", "aa", "a"]),
+    ])
+    def test_lstrip(self, a, chars, out, dt):
+        a = np.array(a, dtype=dt)
+        out = np.array(out, dtype=dt)
+        if chars is not None:
+            chars = np.array(chars, dtype=dt)
+            assert_array_equal(np.strings.lstrip(a, chars), out)
+        else:
+            assert_array_equal(np.strings.lstrip(a), out)
+
+    @pytest.mark.parametrize("a,chars,out", [
+        ("", None, ""),
+        ("   hello   ", None, "   hello"),
+        ("hello", None, "hello"),
+        (" \t\n\r\f\vabc \t\n\r\f\v", None, " \t\n\r\f\vabc"),
+        (["   hello   ", "hello"], None, ["   hello", "hello"]),
+        ("", "", ""),
+        ("", "xyz", ""),
+        ("hello", "", "hello"),
+        (["hello    ", "abcdefghijklmnop"], None,
+         ["hello", "abcdefghijklmnop"]),
+        ("xyzzyhelloxyzzy", "xyz", "xyzzyhello"),
+        ("hello", "xyz", "hello"),
+        ("xyxz", "xyxz", ""),
+        ("    ", None, ""),
+        ("xyxzx", "x", "xyxz"),
+        (["xyzzyhelloxyzzy", "hello"], ["xyz", "xyz"],
+         ["xyzzyhello", "hello"]),
+        (["ab", "ac", "aab", "abb"], "b", ["a", "ac", "aa", "a"]),
+    ])
+    def test_rstrip(self, a, chars, out, dt):
+        a = np.array(a, dtype=dt)
+        out = np.array(out, dtype=dt)
+        if chars is not None:
+            chars = np.array(chars, dtype=dt)
+            assert_array_equal(np.strings.rstrip(a, chars), out)
+        else:
+            assert_array_equal(np.strings.rstrip(a), out)
+
+    @pytest.mark.parametrize("a,chars,out", [
+        ("", None, ""),
+        ("   hello   ", None, "hello"),
+        ("hello", None, "hello"),
+        (" \t\n\r\f\vabc \t\n\r\f\v", None, "abc"),
+        (["   hello   ", "hello"], None, ["hello", "hello"]),
+        ("", "", ""),
+        ("", "xyz", ""),
+        ("hello", "", "hello"),
+        ("xyzzyhelloxyzzy", "xyz", "hello"),
+        ("hello", "xyz", "hello"),
+        ("xyxz", "xyxz", ""),
+        ("xyxzx", "x", "yxz"),
+        (["xyzzyhelloxyzzy", "hello"], ["xyz", "xyz"],
+         ["hello", "hello"]),
+        (["bab", "ac", "baab", "bbabb"], "b", ["a", "ac", "aa", "a"]),
+    ])
+    def test_strip(self, a, chars, out, dt):
+        a = np.array(a, dtype=dt)
+        if chars is not None:
+            chars = np.array(chars, dtype=dt)
+        out = np.array(out, dtype=dt)
+        assert_array_equal(np.strings.strip(a, chars), out)
+
+    @pytest.mark.parametrize("buf,old,new,count,res", [
+        ("", "", "", -1, ""),
+        ("", "", "A", -1, "A"),
+        ("", "A", "", -1, ""),
+        ("", "A", "A", -1, ""),
+        ("", "", "", 100, ""),
+        ("", "", "A", 100, "A"),
+        ("A", "", "", -1, "A"),
+        ("A", "", "*", -1, "*A*"),
+        ("A", "", "*1", -1, "*1A*1"),
+        ("A", "", "*-#", -1, "*-#A*-#"),
+        ("AA", "", "*-", -1, "*-A*-A*-"),
+        ("AA", "", "*-", -1, "*-A*-A*-"),
+        ("AA", "", "*-", 4, "*-A*-A*-"),
+        ("AA", "", "*-", 3, "*-A*-A*-"),
+        ("AA", "", "*-", 2, "*-A*-A"),
+        ("AA", "", "*-", 1, "*-AA"),
+        ("AA", "", "*-", 0, "AA"),
+        ("A", "A", "", -1, ""),
+        ("AAA", "A", "", -1, ""),
+        ("AAA", "A", "", -1, ""),
+        ("AAA", "A", "", 4, ""),
+        ("AAA", "A", "", 3, ""),
+        ("AAA", "A", "", 2, "A"),
+        ("AAA", "A", "", 1, "AA"),
+        ("AAA", "A", "", 0, "AAA"),
+        ("AAAAAAAAAA", "A", "", -1, ""),
+        ("ABACADA", "A", "", -1, "BCD"),
+        ("ABACADA", "A", "", -1, "BCD"),
+        ("ABACADA", "A", "", 5, "BCD"),
+        ("ABACADA", "A", "", 4, "BCD"),
+        ("ABACADA", "A", "", 3, "BCDA"),
+        ("ABACADA", "A", "", 2, "BCADA"),
+        ("ABACADA", "A", "", 1, "BACADA"),
+        ("ABACADA", "A", "", 0, "ABACADA"),
+        ("ABCAD", "A", "", -1, "BCD"),
+        ("ABCADAA", "A", "", -1, "BCD"),
+        ("BCD", "A", "", -1, "BCD"),
+        ("*************", "A", "", -1, "*************"),
+        ("^" + "A" * 1000 + "^", "A", "", 999, "^A^"),
+        ("the", "the", "", -1, ""),
+        ("theater", "the", "", -1, "ater"),
+        ("thethe", "the", "", -1, ""),
+        ("thethethethe", "the", "", -1, ""),
+        ("theatheatheathea", "the", "", -1, "aaaa"),
+        ("that", "the", "", -1, "that"),
+        ("thaet", "the", "", -1, "thaet"),
+        ("here and there", "the", "", -1, "here and re"),
+        ("here and there and there", "the", "", -1, "here and re and re"),
+        ("here and there and there", "the", "", 3, "here and re and re"),
+        ("here and there and there", "the", "", 2, "here and re and re"),
+        ("here and there and there", "the", "", 1, "here and re and there"),
+        ("here and there and there", "the", "", 0, "here and there and there"),
+        ("here and there and there", "the", "", -1, "here and re and re"),
+        ("abc", "the", "", -1, "abc"),
+        ("abcdefg", "the", "", -1, "abcdefg"),
+        ("bbobob", "bob", "", -1, "bob"),
+        ("bbobobXbbobob", "bob", "", -1, "bobXbob"),
+        ("aaaaaaabob", "bob", "", -1, "aaaaaaa"),
+        ("aaaaaaa", "bob", "", -1, "aaaaaaa"),
+        ("Who goes there?", "o", "o", -1, "Who goes there?"),
+        ("Who goes there?", "o", "O", -1, "WhO gOes there?"),
+        ("Who goes there?", "o", "O", -1, "WhO gOes there?"),
+        ("Who goes there?", "o", "O", 3, "WhO gOes there?"),
+        ("Who goes there?", "o", "O", 2, "WhO gOes there?"),
+        ("Who goes there?", "o", "O", 1, "WhO goes there?"),
+        ("Who goes there?", "o", "O", 0, "Who goes there?"),
+        ("Who goes there?", "a", "q", -1, "Who goes there?"),
+        ("Who goes there?", "W", "w", -1, "who goes there?"),
+        ("WWho goes there?WW", "W", "w", -1, "wwho goes there?ww"),
+        ("Who goes there?", "?", "!", -1, "Who goes there!"),
+        ("Who goes there??", "?", "!", -1, "Who goes there!!"),
+        ("Who goes there?", ".", "!", -1, "Who goes there?"),
+        ("This is a tissue", "is", "**", -1, "Th** ** a t**sue"),
+        ("This is a tissue", "is", "**", -1, "Th** ** a t**sue"),
+        ("This is a tissue", "is", "**", 4, "Th** ** a t**sue"),
+        ("This is a tissue", "is", "**", 3, "Th** ** a t**sue"),
+        ("This is a tissue", "is", "**", 2, "Th** ** a tissue"),
+        ("This is a tissue", "is", "**", 1, "Th** is a tissue"),
+        ("This is a tissue", "is", "**", 0, "This is a tissue"),
+        ("bobob", "bob", "cob", -1, "cobob"),
+        ("bobobXbobobob", "bob", "cob", -1, "cobobXcobocob"),
+        ("bobob", "bot", "bot", -1, "bobob"),
+        ("Reykjavik", "k", "KK", -1, "ReyKKjaviKK"),
+        ("Reykjavik", "k", "KK", -1, "ReyKKjaviKK"),
+        ("Reykjavik", "k", "KK", 2, "ReyKKjaviKK"),
+        ("Reykjavik", "k", "KK", 1, "ReyKKjavik"),
+        ("Reykjavik", "k", "KK", 0, "Reykjavik"),
+        ("A.B.C.", ".", "----", -1, "A----B----C----"),
+        ("Reykjavik", "q", "KK", -1, "Reykjavik"),
+        ("spam, spam, eggs and spam", "spam", "ham", -1,
+            "ham, ham, eggs and ham"),
+        ("spam, spam, eggs and spam", "spam", "ham", -1,
+            "ham, ham, eggs and ham"),
+        ("spam, spam, eggs and spam", "spam", "ham", 4,
+            "ham, ham, eggs and ham"),
+        ("spam, spam, eggs and spam", "spam", "ham", 3,
+            "ham, ham, eggs and ham"),
+        ("spam, spam, eggs and spam", "spam", "ham", 2,
+            "ham, ham, eggs and spam"),
+        ("spam, spam, eggs and spam", "spam", "ham", 1,
+            "ham, spam, eggs and spam"),
+        ("spam, spam, eggs and spam", "spam", "ham", 0,
+            "spam, spam, eggs and spam"),
+        ("bobobob", "bobob", "bob", -1, "bobob"),
+        ("bobobobXbobobob", "bobob", "bob", -1, "bobobXbobob"),
+        ("BOBOBOB", "bob", "bobby", -1, "BOBOBOB"),
+        ("one!two!three!", "!", "@", 1, "one@two!three!"),
+        ("one!two!three!", "!", "", -1, "onetwothree"),
+        ("one!two!three!", "!", "@", 2, "one@two@three!"),
+        ("one!two!three!", "!", "@", 3, "one@two@three@"),
+        ("one!two!three!", "!", "@", 4, "one@two@three@"),
+        ("one!two!three!", "!", "@", 0, "one!two!three!"),
+        ("one!two!three!", "!", "@", -1, "one@two@three@"),
+        ("one!two!three!", "x", "@", -1, "one!two!three!"),
+        ("one!two!three!", "x", "@", 2, "one!two!three!"),
+        ("abc", "", "-", -1, "-a-b-c-"),
+        ("abc", "", "-", 3, "-a-b-c"),
+        ("abc", "", "-", 0, "abc"),
+        ("abc", "ab", "--", 0, "abc"),
+        ("abc", "xy", "--", -1, "abc"),
+        (["abbc", "abbd"], "b", "z", [1, 2], ["azbc", "azzd"]),
+    ])
+    def test_replace(self, buf, old, new, count, res, dt):
+        if "😊" in buf and dt == "S":
+            pytest.skip("Bytes dtype does not support non-ascii input")
+        buf = np.array(buf, dtype=dt)
+        old = np.array(old, dtype=dt)
+        new = np.array(new, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.replace(buf, old, new, count), res)
+
+    @pytest.mark.parametrize("buf,sub,start,end,res", [
+        ("abcdefghiabc", "", 0, None, 0),
+        ("abcdefghiabc", "def", 0, None, 3),
+        ("abcdefghiabc", "abc", 0, None, 0),
+        ("abcdefghiabc", "abc", 1, None, 9),
+    ])
+    def test_index(self, buf, sub, start, end, res, dt):
+        buf = np.array(buf, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        assert_array_equal(np.strings.index(buf, sub, start, end), res)
+
+    @pytest.mark.parametrize("buf,sub,start,end", [
+        ("abcdefghiabc", "hib", 0, None),
+        ("abcdefghiab", "abc", 1, None),
+        ("abcdefghi", "ghi", 8, None),
+        ("abcdefghi", "ghi", -1, None),
+        ("rrarrrrrrrrra", "a", 4, 6),
+    ])
+    def test_index_raises(self, buf, sub, start, end, dt):
+        buf = np.array(buf, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        with pytest.raises(ValueError, match="substring not found"):
+            np.strings.index(buf, sub, start, end)
+
+    @pytest.mark.parametrize("buf,sub,start,end,res", [
+        ("abcdefghiabc", "", 0, None, 12),
+        ("abcdefghiabc", "def", 0, None, 3),
+        ("abcdefghiabc", "abc", 0, None, 9),
+        ("abcdefghiabc", "abc", 0, -1, 0),
+    ])
+    def test_rindex(self, buf, sub, start, end, res, dt):
+        buf = np.array(buf, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        assert_array_equal(np.strings.rindex(buf, sub, start, end), res)
+
+    @pytest.mark.parametrize("buf,sub,start,end", [
+        ("abcdefghiabc", "hib", 0, None),
+        ("defghiabc", "def", 1, None),
+        ("defghiabc", "abc", 0, -1),
+        ("abcdefghi", "ghi", 0, 8),
+        ("abcdefghi", "ghi", 0, -1),
+        ("rrarrrrrrrrra", "a", 4, 6),
+    ])
+    def test_rindex_raises(self, buf, sub, start, end, dt):
+        buf = np.array(buf, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        with pytest.raises(ValueError, match="substring not found"):
+            np.strings.rindex(buf, sub, start, end)
+
+    @pytest.mark.parametrize("buf,tabsize,res", [
+        ("abc\rab\tdef\ng\thi", 8, "abc\rab      def\ng       hi"),
+        ("abc\rab\tdef\ng\thi", 4, "abc\rab  def\ng   hi"),
+        ("abc\r\nab\tdef\ng\thi", 8, "abc\r\nab      def\ng       hi"),
+        ("abc\r\nab\tdef\ng\thi", 4, "abc\r\nab  def\ng   hi"),
+        ("abc\r\nab\r\ndef\ng\r\nhi", 4, "abc\r\nab\r\ndef\ng\r\nhi"),
+        (" \ta\n\tb", 1, "  a\n b"),
+    ])
+    def test_expandtabs(self, buf, tabsize, res, dt):
+        buf = np.array(buf, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.expandtabs(buf, tabsize), res)
+
+    def test_expandtabs_raises_overflow(self, dt):
+        with pytest.raises(OverflowError, match="new string is too long"):
+            np.strings.expandtabs(np.array("\ta\n\tb", dtype=dt), sys.maxsize)
+            np.strings.expandtabs(np.array("\ta\n\tb", dtype=dt), 2**61)
+
+    def test_expandtabs_length_not_cause_segfault(self, dt):
+        # see gh-28829
+        with pytest.raises(
+            _UFuncNoLoopError,
+            match="did not contain a loop with signature matching types",
+        ):
+            np._core.strings._expandtabs_length.reduce(np.zeros(200))
+
+        with pytest.raises(
+            _UFuncNoLoopError,
+            match="did not contain a loop with signature matching types",
+        ):
+            np.strings.expandtabs(np.zeros(200))
+
+    FILL_ERROR = "The fill character must be exactly one character long"
+
+    def test_center_raises_multiple_character_fill(self, dt):
+        buf = np.array("abc", dtype=dt)
+        fill = np.array("**", dtype=dt)
+        with pytest.raises(TypeError, match=self.FILL_ERROR):
+            np.strings.center(buf, 10, fill)
+
+    def test_ljust_raises_multiple_character_fill(self, dt):
+        buf = np.array("abc", dtype=dt)
+        fill = np.array("**", dtype=dt)
+        with pytest.raises(TypeError, match=self.FILL_ERROR):
+            np.strings.ljust(buf, 10, fill)
+
+    def test_rjust_raises_multiple_character_fill(self, dt):
+        buf = np.array("abc", dtype=dt)
+        fill = np.array("**", dtype=dt)
+        with pytest.raises(TypeError, match=self.FILL_ERROR):
+            np.strings.rjust(buf, 10, fill)
+
+    @pytest.mark.parametrize("buf,width,fillchar,res", [
+        ('abc', 10, ' ', '   abc    '),
+        ('abc', 6, ' ', ' abc  '),
+        ('abc', 3, ' ', 'abc'),
+        ('abc', 2, ' ', 'abc'),
+        ('abc', -2, ' ', 'abc'),
+        ('abc', 10, '*', '***abc****'),
+    ])
+    def test_center(self, buf, width, fillchar, res, dt):
+        buf = np.array(buf, dtype=dt)
+        fillchar = np.array(fillchar, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.center(buf, width, fillchar), res)
+
+    @pytest.mark.parametrize("buf,width,fillchar,res", [
+        ('abc', 10, ' ', 'abc       '),
+        ('abc', 6, ' ', 'abc   '),
+        ('abc', 3, ' ', 'abc'),
+        ('abc', 2, ' ', 'abc'),
+        ('abc', -2, ' ', 'abc'),
+        ('abc', 10, '*', 'abc*******'),
+    ])
+    def test_ljust(self, buf, width, fillchar, res, dt):
+        buf = np.array(buf, dtype=dt)
+        fillchar = np.array(fillchar, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.ljust(buf, width, fillchar), res)
+
+    @pytest.mark.parametrize("buf,width,fillchar,res", [
+        ('abc', 10, ' ', '       abc'),
+        ('abc', 6, ' ', '   abc'),
+        ('abc', 3, ' ', 'abc'),
+        ('abc', 2, ' ', 'abc'),
+        ('abc', -2, ' ', 'abc'),
+        ('abc', 10, '*', '*******abc'),
+    ])
+    def test_rjust(self, buf, width, fillchar, res, dt):
+        buf = np.array(buf, dtype=dt)
+        fillchar = np.array(fillchar, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.rjust(buf, width, fillchar), res)
+
+    @pytest.mark.parametrize("buf,width,res", [
+        ('123', 2, '123'),
+        ('123', 3, '123'),
+        ('0123', 4, '0123'),
+        ('+123', 3, '+123'),
+        ('+123', 4, '+123'),
+        ('+123', 5, '+0123'),
+        ('+0123', 5, '+0123'),
+        ('-123', 3, '-123'),
+        ('-123', 4, '-123'),
+        ('-0123', 5, '-0123'),
+        ('000', 3, '000'),
+        ('34', 1, '34'),
+        ('34', -1, '34'),
+        ('0034', 4, '0034'),
+    ])
+    def test_zfill(self, buf, width, res, dt):
+        buf = np.array(buf, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.zfill(buf, width), res)
+
+    @pytest.mark.parametrize("buf,sep,res1,res2,res3", [
+        ("this is the partition method", "ti", "this is the par",
+            "ti", "tion method"),
+        ("http://www.python.org", "://", "http", "://", "www.python.org"),
+        ("http://www.python.org", "?", "http://www.python.org", "", ""),
+        ("http://www.python.org", "http://", "", "http://", "www.python.org"),
+        ("http://www.python.org", "org", "http://www.python.", "org", ""),
+        ("http://www.python.org", ["://", "?", "http://", "org"],
+            ["http", "http://www.python.org", "", "http://www.python."],
+            ["://", "", "http://", "org"],
+            ["www.python.org", "", "www.python.org", ""]),
+        ("mississippi", "ss", "mi", "ss", "issippi"),
+        ("mississippi", "i", "m", "i", "ssissippi"),
+        ("mississippi", "w", "mississippi", "", ""),
+    ])
+    def test_partition(self, buf, sep, res1, res2, res3, dt):
+        buf = np.array(buf, dtype=dt)
+        sep = np.array(sep, dtype=dt)
+        res1 = np.array(res1, dtype=dt)
+        res2 = np.array(res2, dtype=dt)
+        res3 = np.array(res3, dtype=dt)
+        act1, act2, act3 = np.strings.partition(buf, sep)
+        assert_array_equal(act1, res1)
+        assert_array_equal(act2, res2)
+        assert_array_equal(act3, res3)
+        assert_array_equal(act1 + act2 + act3, buf)
+
+    @pytest.mark.parametrize("buf,sep,res1,res2,res3", [
+        ("this is the partition method", "ti", "this is the parti",
+            "ti", "on method"),
+        ("http://www.python.org", "://", "http", "://", "www.python.org"),
+        ("http://www.python.org", "?", "", "", "http://www.python.org"),
+        ("http://www.python.org", "http://", "", "http://", "www.python.org"),
+        ("http://www.python.org", "org", "http://www.python.", "org", ""),
+        ("http://www.python.org", ["://", "?", "http://", "org"],
+            ["http", "", "", "http://www.python."],
+            ["://", "", "http://", "org"],
+            ["www.python.org", "http://www.python.org", "www.python.org", ""]),
+        ("mississippi", "ss", "missi", "ss", "ippi"),
+        ("mississippi", "i", "mississipp", "i", ""),
+        ("mississippi", "w", "", "", "mississippi"),
+    ])
+    def test_rpartition(self, buf, sep, res1, res2, res3, dt):
+        buf = np.array(buf, dtype=dt)
+        sep = np.array(sep, dtype=dt)
+        res1 = np.array(res1, dtype=dt)
+        res2 = np.array(res2, dtype=dt)
+        res3 = np.array(res3, dtype=dt)
+        act1, act2, act3 = np.strings.rpartition(buf, sep)
+        assert_array_equal(act1, res1)
+        assert_array_equal(act2, res2)
+        assert_array_equal(act3, res3)
+        assert_array_equal(act1 + act2 + act3, buf)
+
+    @pytest.mark.parametrize("args", [
+        (None,),
+        (None, None),
+        (None, None, -1),
+        (0,),
+        (0, None),
+        (0, None, -1),
+        (1,),
+        (1, None),
+        (1, None, -1),
+        (3,),
+        (3, None),
+        (5,),
+        (5, None),
+        (5, 5),
+        (5, 5, -1),
+        (6,),  # test index past the end
+        (6, None),
+        (6, None, -1),
+        (6, 7),  # test start and stop index past the end
+        (4, 3),  # test start > stop index
+        (-1,),
+        (-1, None),
+        (-1, None, -1),
+        (-3,),
+        (-3, None),
+        ([3, 4],),
+        ([3, 4], None),
+        ([2, 4],),
+        ([-3, 5],),
+        ([-3, 5], None),
+        ([-3, 5], None, -1),
+        ([0, -5],),
+        ([0, -5], None),
+        ([0, -5], None, -1),
+        (1, 4),
+        (-3, 5),
+        (None, -1),
+        (0, [4, 2]),
+        ([1, 2], [-1, -2]),
+        (1, 5, 2),
+        (None, None, -1),
+        ([0, 6], [-1, 0], [2, -1]),
+    ])
+    @pytest.mark.parametrize("buf", [
+        ["hello", "world"],
+        ['hello world', 'γεια σου κόσμε', '你好世界', '👋 🌍'],
+    ])
+    def test_slice(self, args, buf, dt):
+        if dt == "S" and "你好世界" in buf:
+            pytest.skip("Bytes dtype does not support non-ascii input")
+        if len(buf) == 4:
+            args = tuple(s * 2 if isinstance(s, list) else s for s in args)
+        buf = np.array(buf, dtype=dt)
+        act = np.strings.slice(buf, *args)
+        bcast_args = tuple(np.broadcast_to(arg, buf.shape) for arg in args)
+        res = np.array([s[slice(*arg)]
+                        for s, arg in zip(buf, zip(*bcast_args))],
+                       dtype=dt)
+        assert_array_equal(act, res)
+
+    def test_slice_unsupported(self, dt):
+        with pytest.raises(TypeError, match="did not contain a loop"):
+            np.strings.slice(np.array([1, 2, 3]), 4)
+
+        regexp = (r"Cannot cast ufunc '_slice' input .* "
+                  r"from .* to dtype\('int(64|32)'\)")
+        with pytest.raises(TypeError, match=regexp):
+            np.strings.slice(np.array(['foo', 'bar'], dtype=dt),
+                             np.array(['foo', 'bar'], dtype=dt))
+
+    @pytest.mark.parametrize("int_dt", [np.int8, np.int16, np.int32,
+                                        np.int64, np.uint8, np.uint16,
+                                        np.uint32, np.uint64])
+    def test_slice_int_type_promotion(self, int_dt, dt):
+        buf = np.array(["hello", "world"], dtype=dt)
+        np_slice = np.strings.slice
+        assert_array_equal(np_slice(buf, int_dt(4)),
+                           np.array(["hell", "worl"], dtype=dt))
+        assert_array_equal(np_slice(buf, np.array([4, 4], dtype=int_dt)),
+                           np.array(["hell", "worl"], dtype=dt))
+
+        assert_array_equal(np_slice(buf, int_dt(2), int_dt(4)),
+                           np.array(["ll", "rl"], dtype=dt))
+        assert_array_equal(np_slice(buf, np.array([2, 2], dtype=int_dt),
+                                    np.array([4, 4], dtype=int_dt)),
+                           np.array(["ll", "rl"], dtype=dt))
+
+        assert_array_equal(np_slice(buf, int_dt(0), int_dt(4), int_dt(2)),
+                           np.array(["hl", "wr"], dtype=dt))
+        assert_array_equal(np_slice(buf,
+                                    np.array([0, 0], dtype=int_dt),
+                                    np.array([4, 4], dtype=int_dt),
+                                    np.array([2, 2], dtype=int_dt)),
+                           np.array(["hl", "wr"], dtype=dt))
+
+@pytest.mark.parametrize("dt", ["U", "T"])
+class TestMethodsWithUnicode:
+    @pytest.mark.parametrize("in_,out", [
+        ("", False),
+        ("a", False),
+        ("0", True),
+        ("\u2460", False),  # CIRCLED DIGIT 1
+        ("\xbc", False),  # VULGAR FRACTION ONE QUARTER
+        ("\u0660", True),  # ARABIC_INDIC DIGIT ZERO
+        ("012345", True),
+        ("012345a", False),
+        (["0", "a"], [True, False]),
+    ])
+    def test_isdecimal_unicode(self, in_, out, dt):
+        buf = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isdecimal(buf), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ("", False),
+        ("a", False),
+        ("0", True),
+        ("\u2460", True),  # CIRCLED DIGIT 1
+        ("\xbc", True),  # VULGAR FRACTION ONE QUARTER
+        ("\u0660", True),  # ARABIC_INDIC DIGIT ZERO
+        ("012345", True),
+        ("012345a", False),
+        (["0", "a"], [True, False]),
+    ])
+    def test_isnumeric_unicode(self, in_, out, dt):
+        buf = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isnumeric(buf), out)
+
+    @pytest.mark.parametrize("buf,old,new,count,res", [
+        ("...\u043c......<", "<", "&lt;", -1, "...\u043c......&lt;"),
+        ("Ae¢☃€ 😊" * 2, "A", "B", -1, "Be¢☃€ 😊Be¢☃€ 😊"),
+        ("Ae¢☃€ 😊" * 2, "😊", "B", -1, "Ae¢☃€ BAe¢☃€ B"),
+    ])
+    def test_replace_unicode(self, buf, old, new, count, res, dt):
+        buf = np.array(buf, dtype=dt)
+        old = np.array(old, dtype=dt)
+        new = np.array(new, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.replace(buf, old, new, count), res)
+
+    @pytest.mark.parametrize("in_", [
+        '\U00010401',
+        '\U00010427',
+        '\U00010429',
+        '\U0001044E',
+        '\U0001D7F6',
+        '\U00011066',
+        '\U000104A0',
+        pytest.param('\U0001F107', marks=pytest.mark.xfail(
+            sys.platform == 'win32' and IS_PYPY_LT_7_3_16,
+            reason="PYPY bug in Py_UNICODE_ISALNUM",
+            strict=True)),
+    ])
+    def test_isalnum_unicode(self, in_, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isalnum(in_), True)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('\u1FFc', False),
+        ('\u2167', False),
+        ('\U00010401', False),
+        ('\U00010427', False),
+        ('\U0001F40D', False),
+        ('\U0001F46F', False),
+        ('\u2177', True),
+        pytest.param('\U00010429', True, marks=pytest.mark.xfail(
+            sys.platform == 'win32' and IS_PYPY_LT_7_3_16,
+            reason="PYPY bug in Py_UNICODE_ISLOWER",
+            strict=True)),
+        ('\U0001044E', True),
+    ])
+    def test_islower_unicode(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.islower(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('\u1FFc', False),
+        ('\u2167', True),
+        ('\U00010401', True),
+        ('\U00010427', True),
+        ('\U0001F40D', False),
+        ('\U0001F46F', False),
+        ('\u2177', False),
+        pytest.param('\U00010429', False, marks=pytest.mark.xfail(
+            sys.platform == 'win32' and IS_PYPY_LT_7_3_16,
+            reason="PYPY bug in Py_UNICODE_ISUPPER",
+            strict=True)),
+        ('\U0001044E', False),
+    ])
+    def test_isupper_unicode(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.isupper(in_), out)
+
+    @pytest.mark.parametrize("in_,out", [
+        ('\u1FFc', True),
+        ('Greek \u1FFcitlecases ...', True),
+        pytest.param('\U00010401\U00010429', True, marks=pytest.mark.xfail(
+            sys.platform == 'win32' and IS_PYPY_LT_7_3_16,
+            reason="PYPY bug in Py_UNICODE_ISISTITLE",
+            strict=True)),
+        ('\U00010427\U0001044E', True),
+        pytest.param('\U00010429', False, marks=pytest.mark.xfail(
+            sys.platform == 'win32' and IS_PYPY_LT_7_3_16,
+            reason="PYPY bug in Py_UNICODE_ISISTITLE",
+            strict=True)),
+        ('\U0001044E', False),
+        ('\U0001F40D', False),
+        ('\U0001F46F', False),
+    ])
+    def test_istitle_unicode(self, in_, out, dt):
+        in_ = np.array(in_, dtype=dt)
+        assert_array_equal(np.strings.istitle(in_), out)
+
+    @pytest.mark.parametrize("buf,sub,start,end,res", [
+        ("Ae¢☃€ 😊" * 2, "😊", 0, None, 6),
+        ("Ae¢☃€ 😊" * 2, "😊", 7, None, 13),
+    ])
+    def test_index_unicode(self, buf, sub, start, end, res, dt):
+        buf = np.array(buf, dtype=dt)
+        sub = np.array(sub, dtype=dt)
+        assert_array_equal(np.strings.index(buf, sub, start, end), res)
+
+    def test_index_raises_unicode(self, dt):
+        with pytest.raises(ValueError, match="substring not found"):
+            np.strings.index("Ae¢☃€ 😊", "😀")
+
+    @pytest.mark.parametrize("buf,res", [
+        ("Ae¢☃€ \t 😊", "Ae¢☃€    😊"),
+        ("\t\U0001044E", "        \U0001044E"),
+    ])
+    def test_expandtabs(self, buf, res, dt):
+        buf = np.array(buf, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.expandtabs(buf), res)
+
+    @pytest.mark.parametrize("buf,width,fillchar,res", [
+        ('x', 2, '\U0001044E', 'x\U0001044E'),
+        ('x', 3, '\U0001044E', '\U0001044Ex\U0001044E'),
+        ('x', 4, '\U0001044E', '\U0001044Ex\U0001044E\U0001044E'),
+    ])
+    def test_center(self, buf, width, fillchar, res, dt):
+        buf = np.array(buf, dtype=dt)
+        fillchar = np.array(fillchar, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.center(buf, width, fillchar), res)
+
+    @pytest.mark.parametrize("buf,width,fillchar,res", [
+        ('x', 2, '\U0001044E', 'x\U0001044E'),
+        ('x', 3, '\U0001044E', 'x\U0001044E\U0001044E'),
+        ('x', 4, '\U0001044E', 'x\U0001044E\U0001044E\U0001044E'),
+    ])
+    def test_ljust(self, buf, width, fillchar, res, dt):
+        buf = np.array(buf, dtype=dt)
+        fillchar = np.array(fillchar, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.ljust(buf, width, fillchar), res)
+
+    @pytest.mark.parametrize("buf,width,fillchar,res", [
+        ('x', 2, '\U0001044E', '\U0001044Ex'),
+        ('x', 3, '\U0001044E', '\U0001044E\U0001044Ex'),
+        ('x', 4, '\U0001044E', '\U0001044E\U0001044E\U0001044Ex'),
+    ])
+    def test_rjust(self, buf, width, fillchar, res, dt):
+        buf = np.array(buf, dtype=dt)
+        fillchar = np.array(fillchar, dtype=dt)
+        res = np.array(res, dtype=dt)
+        assert_array_equal(np.strings.rjust(buf, width, fillchar), res)
+
+    @pytest.mark.parametrize("buf,sep,res1,res2,res3", [
+        ("āāāāĀĀĀĀ", "Ă", "āāāāĀĀĀĀ", "", ""),
+        ("āāāāĂĀĀĀĀ", "Ă", "āāāā", "Ă", "ĀĀĀĀ"),
+        ("āāāāĂĂĀĀĀĀ", "ĂĂ", "āāāā", "ĂĂ", "ĀĀĀĀ"),
+        ("𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀", "𐌂", "𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀", "", ""),
+        ("𐌁𐌁𐌁𐌁𐌂𐌀𐌀𐌀𐌀", "𐌂", "𐌁𐌁𐌁𐌁", "𐌂", "𐌀𐌀𐌀𐌀"),
+        ("𐌁𐌁𐌁𐌁𐌂𐌂𐌀𐌀𐌀𐌀", "𐌂𐌂", "𐌁𐌁𐌁𐌁", "𐌂𐌂", "𐌀𐌀𐌀𐌀"),
+        ("𐌁𐌁𐌁𐌁𐌂𐌂𐌂𐌂𐌀𐌀𐌀𐌀", "𐌂𐌂𐌂𐌂", "𐌁𐌁𐌁𐌁", "𐌂𐌂𐌂𐌂", "𐌀𐌀𐌀𐌀"),
+    ])
+    def test_partition(self, buf, sep, res1, res2, res3, dt):
+        buf = np.array(buf, dtype=dt)
+        sep = np.array(sep, dtype=dt)
+        res1 = np.array(res1, dtype=dt)
+        res2 = np.array(res2, dtype=dt)
+        res3 = np.array(res3, dtype=dt)
+        act1, act2, act3 = np.strings.partition(buf, sep)
+        assert_array_equal(act1, res1)
+        assert_array_equal(act2, res2)
+        assert_array_equal(act3, res3)
+        assert_array_equal(act1 + act2 + act3, buf)
+
+    @pytest.mark.parametrize("buf,sep,res1,res2,res3", [
+        ("āāāāĀĀĀĀ", "Ă", "", "", "āāāāĀĀĀĀ"),
+        ("āāāāĂĀĀĀĀ", "Ă", "āāāā", "Ă", "ĀĀĀĀ"),
+        ("āāāāĂĂĀĀĀĀ", "ĂĂ", "āāāā", "ĂĂ", "ĀĀĀĀ"),
+        ("𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀", "𐌂", "", "", "𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀"),
+        ("𐌁𐌁𐌁𐌁𐌂𐌀𐌀𐌀𐌀", "𐌂", "𐌁𐌁𐌁𐌁", "𐌂", "𐌀𐌀𐌀𐌀"),
+        ("𐌁𐌁𐌁𐌁𐌂𐌂𐌀𐌀𐌀𐌀", "𐌂𐌂", "𐌁𐌁𐌁𐌁", "𐌂𐌂", "𐌀𐌀𐌀𐌀"),
+    ])
+    def test_rpartition(self, buf, sep, res1, res2, res3, dt):
+        buf = np.array(buf, dtype=dt)
+        sep = np.array(sep, dtype=dt)
+        res1 = np.array(res1, dtype=dt)
+        res2 = np.array(res2, dtype=dt)
+        res3 = np.array(res3, dtype=dt)
+        act1, act2, act3 = np.strings.rpartition(buf, sep)
+        assert_array_equal(act1, res1)
+        assert_array_equal(act2, res2)
+        assert_array_equal(act3, res3)
+        assert_array_equal(act1 + act2 + act3, buf)
+
+    @pytest.mark.parametrize("method", ["strip", "lstrip", "rstrip"])
+    @pytest.mark.parametrize(
+        "source,strip",
+        [
+            ("λμ", "μ"),
+            ("λμ", "λ"),
+            ("λ" * 5 + "μ" * 2, "μ"),
+            ("λ" * 5 + "μ" * 2, "λ"),
+            ("λ" * 5 + "A" + "μ" * 2, "μλ"),
+            ("λμ" * 5, "μ"),
+            ("λμ" * 5, "λ"),
+    ])
+    def test_strip_functions_unicode(self, source, strip, method, dt):
+        src_array = np.array([source], dtype=dt)
+
+        npy_func = getattr(np.strings, method)
+        py_func = getattr(str, method)
+
+        expected = np.array([py_func(source, strip)], dtype=dt)
+        actual = npy_func(src_array, strip)
+
+        assert_array_equal(actual, expected)
+
+    @pytest.mark.parametrize("args", [
+        (None,),
+        (0,),
+        (1,),
+        (5,),
+        (15,),
+        (22,),
+        (-1,),
+        (-3,),
+        ([3, 4],),
+        ([-5, 5],),
+        ([0, -8],),
+        (1, 12),
+        (-12, 15),
+        (None, -1),
+        (0, [17, 6]),
+        ([1, 2], [-1, -2]),
+        (1, 11, 2),
+        (None, None, -1),
+        ([0, 10], [-1, 0], [2, -1]),
+    ])
+    def test_slice(self, args, dt):
+        buf = np.array(["Приве́т नमस्ते שָׁלוֹם", "😀😃😄😁😆😅🤣😂🙂🙃"],
+                       dtype=dt)
+        act = np.strings.slice(buf, *args)
+        bcast_args = tuple(np.broadcast_to(arg, buf.shape) for arg in args)
+        res = np.array([s[slice(*arg)]
+                        for s, arg in zip(buf, zip(*bcast_args))],
+                       dtype=dt)
+        assert_array_equal(act, res)
+
+
+class TestMixedTypeMethods:
+    def test_center(self):
+        buf = np.array("😊", dtype="U")
+        fill = np.array("*", dtype="S")
+        res = np.array("*😊*", dtype="U")
+        assert_array_equal(np.strings.center(buf, 3, fill), res)
+
+        buf = np.array("s", dtype="S")
+        fill = np.array("*", dtype="U")
+        res = np.array("*s*", dtype="S")
+        assert_array_equal(np.strings.center(buf, 3, fill), res)
+
+        with pytest.raises(ValueError, match="'ascii' codec can't encode"):
+            buf = np.array("s", dtype="S")
+            fill = np.array("😊", dtype="U")
+            np.strings.center(buf, 3, fill)
+
+    def test_ljust(self):
+        buf = np.array("😊", dtype="U")
+        fill = np.array("*", dtype="S")
+        res = np.array("😊**", dtype="U")
+        assert_array_equal(np.strings.ljust(buf, 3, fill), res)
+
+        buf = np.array("s", dtype="S")
+        fill = np.array("*", dtype="U")
+        res = np.array("s**", dtype="S")
+        assert_array_equal(np.strings.ljust(buf, 3, fill), res)
+
+        with pytest.raises(ValueError, match="'ascii' codec can't encode"):
+            buf = np.array("s", dtype="S")
+            fill = np.array("😊", dtype="U")
+            np.strings.ljust(buf, 3, fill)
+
+    def test_rjust(self):
+        buf = np.array("😊", dtype="U")
+        fill = np.array("*", dtype="S")
+        res = np.array("**😊", dtype="U")
+        assert_array_equal(np.strings.rjust(buf, 3, fill), res)
+
+        buf = np.array("s", dtype="S")
+        fill = np.array("*", dtype="U")
+        res = np.array("**s", dtype="S")
+        assert_array_equal(np.strings.rjust(buf, 3, fill), res)
+
+        with pytest.raises(ValueError, match="'ascii' codec can't encode"):
+            buf = np.array("s", dtype="S")
+            fill = np.array("😊", dtype="U")
+            np.strings.rjust(buf, 3, fill)
+
+
+class TestUnicodeOnlyMethodsRaiseWithBytes:
+    def test_isdecimal_raises(self):
+        in_ = np.array(b"1")
+        with assert_raises(TypeError):
+            np.strings.isdecimal(in_)
+
+    def test_isnumeric_bytes(self):
+        in_ = np.array(b"1")
+        with assert_raises(TypeError):
+            np.strings.isnumeric(in_)
+
+
+def check_itemsize(n_elem, dt):
+    if dt == "T":
+        return np.dtype(dt).itemsize
+    if dt == "S":
+        return n_elem
+    if dt == "U":
+        return n_elem * 4
+
+@pytest.mark.parametrize("dt", ["S", "U", "T"])
+class TestReplaceOnArrays:
+
+    def test_replace_count_and_size(self, dt):
+        a = np.array(["0123456789" * i for i in range(4)], dtype=dt)
+        r1 = np.strings.replace(a, "5", "ABCDE")
+        assert r1.dtype.itemsize == check_itemsize(3 * 10 + 3 * 4, dt)
+        r1_res = np.array(["01234ABCDE6789" * i for i in range(4)], dtype=dt)
+        assert_array_equal(r1, r1_res)
+        r2 = np.strings.replace(a, "5", "ABCDE", 1)
+        assert r2.dtype.itemsize == check_itemsize(3 * 10 + 4, dt)
+        r3 = np.strings.replace(a, "5", "ABCDE", 0)
+        assert r3.dtype.itemsize == a.dtype.itemsize
+        assert_array_equal(r3, a)
+        # Negative values mean to replace all.
+        r4 = np.strings.replace(a, "5", "ABCDE", -1)
+        assert r4.dtype.itemsize == check_itemsize(3 * 10 + 3 * 4, dt)
+        assert_array_equal(r4, r1)
+        # We can do count on an element-by-element basis.
+        r5 = np.strings.replace(a, "5", "ABCDE", [-1, -1, -1, 1])
+        assert r5.dtype.itemsize == check_itemsize(3 * 10 + 4, dt)
+        assert_array_equal(r5, np.array(
+            ["01234ABCDE6789" * i for i in range(3)]
+            + ["01234ABCDE6789" + "0123456789" * 2], dtype=dt))
+
+    def test_replace_broadcasting(self, dt):
+        a = np.array("0,0,0", dtype=dt)
+        r1 = np.strings.replace(a, "0", "1", np.arange(3))
+        assert r1.dtype == a.dtype
+        assert_array_equal(r1, np.array(["0,0,0", "1,0,0", "1,1,0"], dtype=dt))
+        r2 = np.strings.replace(a, "0", [["1"], ["2"]], np.arange(1, 4))
+        assert_array_equal(r2, np.array([["1,0,0", "1,1,0", "1,1,1"],
+                                         ["2,0,0", "2,2,0", "2,2,2"]],
+                                        dtype=dt))
+        r3 = np.strings.replace(a, ["0", "0,0", "0,0,0"], "X")
+        assert_array_equal(r3, np.array(["X,X,X", "X,0", "X"], dtype=dt))
+
+
+class TestOverride:
+    @classmethod
+    def setup_class(cls):
+        class Override:
+
+            def __array_function__(self, *args, **kwargs):
+                return "function"
+
+            def __array_ufunc__(self, *args, **kwargs):
+                return "ufunc"
+
+        cls.override = Override()
+
+    @pytest.mark.parametrize("func, kwargs", [
+        (np.strings.center, dict(width=10)),
+        (np.strings.capitalize, {}),
+        (np.strings.decode, {}),
+        (np.strings.encode, {}),
+        (np.strings.expandtabs, {}),
+        (np.strings.ljust, dict(width=10)),
+        (np.strings.lower, {}),
+        (np.strings.mod, dict(values=2)),
+        (np.strings.multiply, dict(i=2)),
+        (np.strings.partition, dict(sep="foo")),
+        (np.strings.rjust, dict(width=10)),
+        (np.strings.rpartition, dict(sep="foo")),
+        (np.strings.swapcase, {}),
+        (np.strings.title, {}),
+        (np.strings.translate, dict(table=None)),
+        (np.strings.upper, {}),
+        (np.strings.zfill, dict(width=10)),
+    ])
+    def test_override_function(self, func, kwargs):
+        assert func(self.override, **kwargs) == "function"
+
+    @pytest.mark.parametrize("func, args, kwargs", [
+        (np.strings.add, (None, ), {}),
+        (np.strings.lstrip, (), {}),
+        (np.strings.rstrip, (), {}),
+        (np.strings.strip, (), {}),
+        (np.strings.equal, (None, ), {}),
+        (np.strings.not_equal, (None, ), {}),
+        (np.strings.greater_equal, (None, ), {}),
+        (np.strings.less_equal, (None, ), {}),
+        (np.strings.greater, (None, ), {}),
+        (np.strings.less, (None, ), {}),
+        (np.strings.count, ("foo", ), {}),
+        (np.strings.endswith, ("foo", ), {}),
+        (np.strings.find, ("foo", ), {}),
+        (np.strings.index, ("foo", ), {}),
+        (np.strings.isalnum, (), {}),
+        (np.strings.isalpha, (), {}),
+        (np.strings.isdecimal, (), {}),
+        (np.strings.isdigit, (), {}),
+        (np.strings.islower, (), {}),
+        (np.strings.isnumeric, (), {}),
+        (np.strings.isspace, (), {}),
+        (np.strings.istitle, (), {}),
+        (np.strings.isupper, (), {}),
+        (np.strings.rfind, ("foo", ), {}),
+        (np.strings.rindex, ("foo", ), {}),
+        (np.strings.startswith, ("foo", ), {}),
+        (np.strings.str_len, (), {}),
+    ])
+    def test_override_ufunc(self, func, args, kwargs):
+        assert func(self.override, *args, **kwargs) == "ufunc"
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_ufunc.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_ufunc.py
new file mode 100644
index 0000000000000000000000000000000000000000..c046834851d33a1555db7de8c781ed4ae7ebdb2d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_ufunc.py
@@ -0,0 +1,3409 @@
+import ctypes as ct
+import inspect
+import itertools
+import pickle
+import sys
+import warnings
+
+import pytest
+from pytest import param
+
+import numpy as np
+import numpy._core._operand_flag_tests as opflag_tests
+import numpy._core._rational_tests as _rational_tests
+import numpy._core._umath_tests as umt
+import numpy._core.umath as ncu
+import numpy.linalg._umath_linalg as uml
+from numpy.exceptions import AxisError
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_PYPY,
+    IS_WASM,
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_no_warnings,
+    assert_raises,
+)
+from numpy.testing._private.utils import requires_memory
+
+UNARY_UFUNCS = [obj for obj in np._core.umath.__dict__.values()
+                    if isinstance(obj, np.ufunc)]
+UNARY_OBJECT_UFUNCS = [uf for uf in UNARY_UFUNCS if "O->O" in uf.types]
+
+# Remove functions that do not support `floats`
+UNARY_OBJECT_UFUNCS.remove(np.bitwise_count)
+
+
+class TestUfuncKwargs:
+    def test_kwarg_exact(self):
+        assert_raises(TypeError, np.add, 1, 2, castingx='safe')
+        assert_raises(TypeError, np.add, 1, 2, dtypex=int)
+        assert_raises(TypeError, np.add, 1, 2, extobjx=[4096])
+        assert_raises(TypeError, np.add, 1, 2, outx=None)
+        assert_raises(TypeError, np.add, 1, 2, sigx='ii->i')
+        assert_raises(TypeError, np.add, 1, 2, signaturex='ii->i')
+        assert_raises(TypeError, np.add, 1, 2, subokx=False)
+        assert_raises(TypeError, np.add, 1, 2, wherex=[True])
+
+    def test_sig_signature(self):
+        assert_raises(TypeError, np.add, 1, 2, sig='ii->i',
+                      signature='ii->i')
+
+    def test_sig_dtype(self):
+        assert_raises(TypeError, np.add, 1, 2, sig='ii->i',
+                      dtype=int)
+        assert_raises(TypeError, np.add, 1, 2, signature='ii->i',
+                      dtype=int)
+
+    def test_extobj_removed(self):
+        assert_raises(TypeError, np.add, 1, 2, extobj=[4096])
+
+
+class TestUfuncGenericLoops:
+    """Test generic loops.
+
+    The loops to be tested are:
+
+        PyUFunc_ff_f_As_dd_d
+        PyUFunc_ff_f
+        PyUFunc_dd_d
+        PyUFunc_gg_g
+        PyUFunc_FF_F_As_DD_D
+        PyUFunc_DD_D
+        PyUFunc_FF_F
+        PyUFunc_GG_G
+        PyUFunc_OO_O
+        PyUFunc_OO_O_method
+        PyUFunc_f_f_As_d_d
+        PyUFunc_d_d
+        PyUFunc_f_f
+        PyUFunc_g_g
+        PyUFunc_F_F_As_D_D
+        PyUFunc_F_F
+        PyUFunc_D_D
+        PyUFunc_G_G
+        PyUFunc_O_O
+        PyUFunc_O_O_method
+        PyUFunc_On_Om
+
+    Where:
+
+        f -- float
+        d -- double
+        g -- long double
+        F -- complex float
+        D -- complex double
+        G -- complex long double
+        O -- python object
+
+    It is difficult to assure that each of these loops is entered from the
+    Python level as the special cased loops are a moving target and the
+    corresponding types are architecture dependent. We probably need to
+    define C level testing ufuncs to get at them. For the time being, I've
+    just looked at the signatures registered in the build directory to find
+    relevant functions.
+
+    """
+    np_dtypes = [
+        (np.single, np.single), (np.single, np.double),
+        (np.csingle, np.csingle), (np.csingle, np.cdouble),
+        (np.double, np.double), (np.longdouble, np.longdouble),
+        (np.cdouble, np.cdouble), (np.clongdouble, np.clongdouble)]
+
+    @pytest.mark.parametrize('input_dtype,output_dtype', np_dtypes)
+    def test_unary_PyUFunc(self, input_dtype, output_dtype, f=np.exp, x=0, y=1):
+        xs = np.full(10, input_dtype(x), dtype=output_dtype)
+        ys = f(xs)[::2]
+        assert_allclose(ys, y)
+        assert_equal(ys.dtype, output_dtype)
+
+    def f2(x, y):
+        return x**y
+
+    @pytest.mark.parametrize('input_dtype,output_dtype', np_dtypes)
+    def test_binary_PyUFunc(self, input_dtype, output_dtype, f=f2, x=0, y=1):
+        xs = np.full(10, input_dtype(x), dtype=output_dtype)
+        ys = f(xs, xs)[::2]
+        assert_allclose(ys, y)
+        assert_equal(ys.dtype, output_dtype)
+
+    # class to use in testing object method loops
+    class foo:
+        def conjugate(self):
+            return np.bool(1)
+
+        def logical_xor(self, obj):
+            return np.bool(1)
+
+    def test_unary_PyUFunc_O_O(self):
+        x = np.ones(10, dtype=object)
+        assert_(np.all(np.abs(x) == 1))
+
+    def test_unary_PyUFunc_O_O_method_simple(self, foo=foo):
+        x = np.full(10, foo(), dtype=object)
+        assert_(np.all(np.conjugate(x) == True))
+
+    def test_binary_PyUFunc_OO_O(self):
+        x = np.ones(10, dtype=object)
+        assert_(np.all(np.add(x, x) == 2))
+
+    def test_binary_PyUFunc_OO_O_method(self, foo=foo):
+        x = np.full(10, foo(), dtype=object)
+        assert_(np.all(np.logical_xor(x, x)))
+
+    def test_binary_PyUFunc_On_Om_method(self, foo=foo):
+        x = np.full((10, 2, 3), foo(), dtype=object)
+        assert_(np.all(np.logical_xor(x, x)))
+
+    def test_python_complex_conjugate(self):
+        # The conjugate ufunc should fall back to calling the method:
+        arr = np.array([1 + 2j, 3 - 4j], dtype="O")
+        assert isinstance(arr[0], complex)
+        res = np.conjugate(arr)
+        assert res.dtype == np.dtype("O")
+        assert_array_equal(res, np.array([1 - 2j, 3 + 4j], dtype="O"))
+
+    @pytest.mark.parametrize("ufunc", UNARY_OBJECT_UFUNCS)
+    def test_unary_PyUFunc_O_O_method_full(self, ufunc):
+        """Compare the result of the object loop with non-object one"""
+        val = np.float64(np.pi / 4)
+
+        class MyFloat(np.float64):
+            def __getattr__(self, attr):
+                try:
+                    return super().__getattr__(attr)
+                except AttributeError:
+                    return lambda: getattr(np._core.umath, attr)(val)
+
+        # Use 0-D arrays, to ensure the same element call
+        num_arr = np.array(val, dtype=np.float64)
+        obj_arr = np.array(MyFloat(val), dtype="O")
+
+        with np.errstate(all="raise"):
+            try:
+                res_num = ufunc(num_arr)
+            except Exception as exc:
+                with assert_raises(type(exc)):
+                    ufunc(obj_arr)
+            else:
+                res_obj = ufunc(obj_arr)
+                assert_array_almost_equal(res_num.astype("O"), res_obj)
+
+
+def _pickleable_module_global():
+    pass
+
+
+class TestUfunc:
+    def test_pickle(self):
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            assert_(pickle.loads(pickle.dumps(np.sin,
+                                              protocol=proto)) is np.sin)
+
+            # Check that ufunc not defined in the top level numpy namespace
+            # such as numpy._core._rational_tests.test_add can also be pickled
+            res = pickle.loads(pickle.dumps(_rational_tests.test_add,
+                                            protocol=proto))
+            assert_(res is _rational_tests.test_add)
+
+    def test_pickle_withstring(self):
+        astring = (b"cnumpy.core\n_ufunc_reconstruct\np0\n"
+                   b"(S'numpy._core.umath'\np1\nS'cos'\np2\ntp3\nRp4\n.")
+        assert_(pickle.loads(astring) is np.cos)
+
+    @pytest.mark.skipif(IS_PYPY, reason="'is' check does not work on PyPy")
+    def test_pickle_name_is_qualname(self):
+        # This tests that a simplification of our ufunc pickle code will
+        # lead to allowing qualnames as names.  Future ufuncs should
+        # possible add a specific qualname, or a hook into pickling instead
+        # (dask+numba may benefit).
+        _pickleable_module_global.ufunc = umt._pickleable_module_global_ufunc
+
+        obj = pickle.loads(pickle.dumps(_pickleable_module_global.ufunc))
+        assert obj is umt._pickleable_module_global_ufunc
+
+    def test_reduceat_shifting_sum(self):
+        L = 6
+        x = np.arange(L)
+        idx = np.array(list(zip(np.arange(L - 2), np.arange(L - 2) + 2))).ravel()
+        assert_array_equal(np.add.reduceat(x, idx)[::2], [1, 3, 5, 7])
+
+    def test_all_ufunc(self):
+        """Try to check presence and results of all ufuncs.
+
+        The list of ufuncs comes from generate_umath.py and is as follows:
+
+        =====  ====  =============  ===============  ========================
+        done   args   function        types                notes
+        =====  ====  =============  ===============  ========================
+        n      1     conjugate      nums + O
+        n      1     absolute       nums + O         complex -> real
+        n      1     negative       nums + O
+        n      1     sign           nums + O         -> int
+        n      1     invert         bool + ints + O  flts raise an error
+        n      1     degrees        real + M         cmplx raise an error
+        n      1     radians        real + M         cmplx raise an error
+        n      1     arccos         flts + M
+        n      1     arccosh        flts + M
+        n      1     arcsin         flts + M
+        n      1     arcsinh        flts + M
+        n      1     arctan         flts + M
+        n      1     arctanh        flts + M
+        n      1     cos            flts + M
+        n      1     sin            flts + M
+        n      1     tan            flts + M
+        n      1     cosh           flts + M
+        n      1     sinh           flts + M
+        n      1     tanh           flts + M
+        n      1     exp            flts + M
+        n      1     expm1          flts + M
+        n      1     log            flts + M
+        n      1     log10          flts + M
+        n      1     log1p          flts + M
+        n      1     sqrt           flts + M         real x < 0 raises error
+        n      1     ceil           real + M
+        n      1     trunc          real + M
+        n      1     floor          real + M
+        n      1     fabs           real + M
+        n      1     rint           flts + M
+        n      1     isnan          flts             -> bool
+        n      1     isinf          flts             -> bool
+        n      1     isfinite       flts             -> bool
+        n      1     signbit        real             -> bool
+        n      1     modf           real             -> (frac, int)
+        n      1     logical_not    bool + nums + M  -> bool
+        n      2     left_shift     ints + O         flts raise an error
+        n      2     right_shift    ints + O         flts raise an error
+        n      2     add            bool + nums + O  boolean + is ||
+        n      2     subtract       bool + nums + O  boolean - is ^
+        n      2     multiply       bool + nums + O  boolean * is &
+        n      2     divide         nums + O
+        n      2     floor_divide   nums + O
+        n      2     true_divide    nums + O         bBhH -> f, iIlLqQ -> d
+        n      2     fmod           nums + M
+        n      2     power          nums + O
+        n      2     greater        bool + nums + O  -> bool
+        n      2     greater_equal  bool + nums + O  -> bool
+        n      2     less           bool + nums + O  -> bool
+        n      2     less_equal     bool + nums + O  -> bool
+        n      2     equal          bool + nums + O  -> bool
+        n      2     not_equal      bool + nums + O  -> bool
+        n      2     logical_and    bool + nums + M  -> bool
+        n      2     logical_or     bool + nums + M  -> bool
+        n      2     logical_xor    bool + nums + M  -> bool
+        n      2     maximum        bool + nums + O
+        n      2     minimum        bool + nums + O
+        n      2     bitwise_and    bool + ints + O  flts raise an error
+        n      2     bitwise_or     bool + ints + O  flts raise an error
+        n      2     bitwise_xor    bool + ints + O  flts raise an error
+        n      2     arctan2        real + M
+        n      2     remainder      ints + real + O
+        n      2     hypot          real + M
+        =====  ====  =============  ===============  ========================
+
+        Types other than those listed will be accepted, but they are cast to
+        the smallest compatible type for which the function is defined. The
+        casting rules are:
+
+        bool -> int8 -> float32
+        ints -> double
+
+        """
+        pass
+
+    # from include/numpy/ufuncobject.h
+    size_inferred = 2
+    can_ignore = 4
+
+    def test_signature0(self):
+        # the arguments to test_signature are: nin, nout, core_signature
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            2, 1, "(i),(i)->()")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (1,  1,  0))
+        assert_equal(ixs, (0, 0))
+        assert_equal(flags, (self.size_inferred,))
+        assert_equal(sizes, (-1,))
+
+    def test_signature1(self):
+        # empty core signature; treat as plain ufunc (with trivial core)
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            2, 1, "(),()->()")
+        assert_equal(enabled, 0)
+        assert_equal(num_dims, (0,  0,  0))
+        assert_equal(ixs, ())
+        assert_equal(flags, ())
+        assert_equal(sizes, ())
+
+    def test_signature2(self):
+        # more complicated names for variables
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            2, 1, "(i1,i2),(J_1)->(_kAB)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (2, 1, 1))
+        assert_equal(ixs, (0, 1, 2, 3))
+        assert_equal(flags, (self.size_inferred,) * 4)
+        assert_equal(sizes, (-1, -1, -1, -1))
+
+    def test_signature3(self):
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            2, 1, "(i1, i12),   (J_1)->(i12, i2)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (2, 1, 2))
+        assert_equal(ixs, (0, 1, 2, 1, 3))
+        assert_equal(flags, (self.size_inferred,) * 4)
+        assert_equal(sizes, (-1, -1, -1, -1))
+
+    def test_signature4(self):
+        # matrix_multiply signature from _umath_tests
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            2, 1, "(n,k),(k,m)->(n,m)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (2, 2, 2))
+        assert_equal(ixs, (0, 1, 1, 2, 0, 2))
+        assert_equal(flags, (self.size_inferred,) * 3)
+        assert_equal(sizes, (-1, -1, -1))
+
+    def test_signature5(self):
+        # matmul signature from _umath_tests
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            2, 1, "(n?,k),(k,m?)->(n?,m?)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (2, 2, 2))
+        assert_equal(ixs, (0, 1, 1, 2, 0, 2))
+        assert_equal(flags, (self.size_inferred | self.can_ignore,
+                             self.size_inferred,
+                             self.size_inferred | self.can_ignore))
+        assert_equal(sizes, (-1, -1, -1))
+
+    def test_signature6(self):
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            1, 1, "(3)->()")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (1, 0))
+        assert_equal(ixs, (0,))
+        assert_equal(flags, (0,))
+        assert_equal(sizes, (3,))
+
+    def test_signature7(self):
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            3, 1, "(3),(03,3),(n)->(9)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (1, 2, 1, 1))
+        assert_equal(ixs, (0, 0, 0, 1, 2))
+        assert_equal(flags, (0, self.size_inferred, 0))
+        assert_equal(sizes, (3, -1, 9))
+
+    def test_signature8(self):
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            3, 1, "(3?),(3?,3?),(n)->(9)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (1, 2, 1, 1))
+        assert_equal(ixs, (0, 0, 0, 1, 2))
+        assert_equal(flags, (self.can_ignore, self.size_inferred, 0))
+        assert_equal(sizes, (3, -1, 9))
+
+    def test_signature9(self):
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            1, 1, "(  3)  -> ( )")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (1, 0))
+        assert_equal(ixs, (0,))
+        assert_equal(flags, (0,))
+        assert_equal(sizes, (3,))
+
+    def test_signature10(self):
+        enabled, num_dims, ixs, flags, sizes = umt.test_signature(
+            3, 1, "( 3? ) , (3? ,  3?) ,(n )-> ( 9)")
+        assert_equal(enabled, 1)
+        assert_equal(num_dims, (1, 2, 1, 1))
+        assert_equal(ixs, (0, 0, 0, 1, 2))
+        assert_equal(flags, (self.can_ignore, self.size_inferred, 0))
+        assert_equal(sizes, (3, -1, 9))
+
+    def test_signature_failure_extra_parenthesis(self):
+        with assert_raises(ValueError):
+            umt.test_signature(2, 1, "((i)),(i)->()")
+
+    def test_signature_failure_mismatching_parenthesis(self):
+        with assert_raises(ValueError):
+            umt.test_signature(2, 1, "(i),)i(->()")
+
+    def test_signature_failure_signature_missing_input_arg(self):
+        with assert_raises(ValueError):
+            umt.test_signature(2, 1, "(i),->()")
+
+    def test_signature_failure_signature_missing_output_arg(self):
+        with assert_raises(ValueError):
+            umt.test_signature(2, 2, "(i),(i)->()")
+
+    def test_get_signature(self):
+        assert_equal(np.vecdot.signature, "(n),(n)->()")
+
+    def test_forced_sig(self):
+        a = 0.5 * np.arange(3, dtype='f8')
+        assert_equal(np.add(a, 0.5), [0.5, 1, 1.5])
+        with assert_raises(TypeError):
+            np.add(a, 0.5, sig='i', casting='unsafe')
+        assert_equal(np.add(a, 0.5, sig='ii->i', casting='unsafe'), [0, 0, 1])
+        with assert_raises(TypeError):
+            np.add(a, 0.5, sig=('i4',), casting='unsafe')
+        assert_equal(np.add(a, 0.5, sig=('i4', 'i4', 'i4'),
+                                            casting='unsafe'), [0, 0, 1])
+
+        b = np.zeros((3,), dtype='f8')
+        np.add(a, 0.5, out=b)
+        assert_equal(b, [0.5, 1, 1.5])
+        b[:] = 0
+        with assert_raises(TypeError):
+            np.add(a, 0.5, sig='i', out=b, casting='unsafe')
+        assert_equal(b, [0, 0, 0])
+        np.add(a, 0.5, sig='ii->i', out=b, casting='unsafe')
+        assert_equal(b, [0, 0, 1])
+        b[:] = 0
+        with assert_raises(TypeError):
+            np.add(a, 0.5, sig=('i4',), out=b, casting='unsafe')
+        assert_equal(b, [0, 0, 0])
+        np.add(a, 0.5, sig=('i4', 'i4', 'i4'), out=b, casting='unsafe')
+        assert_equal(b, [0, 0, 1])
+
+    def test_signature_all_None(self):
+        # signature all None, is an acceptable alternative (since 1.21)
+        # to not providing a signature.
+        res1 = np.add([3], [4], sig=(None, None, None))
+        res2 = np.add([3], [4])
+        assert_array_equal(res1, res2)
+        res1 = np.maximum([3], [4], sig=(None, None, None))
+        res2 = np.maximum([3], [4])
+        assert_array_equal(res1, res2)
+
+        with pytest.raises(TypeError):
+            # special case, that would be deprecated anyway, so errors:
+            np.add(3, 4, signature=(None,))
+
+    def test_signature_dtype_type(self):
+        # Since that will be the normal behaviour (past NumPy 1.21)
+        # we do support the types already:
+        float_dtype = type(np.dtype(np.float64))
+        np.add(3, 4, signature=(float_dtype, float_dtype, None))
+
+    @pytest.mark.parametrize("get_kwarg", [
+            param(lambda dt: {"dtype": dt}, id="dtype"),
+            param(lambda dt: {"signature": (dt, None, None)}, id="signature")])
+    def test_signature_dtype_instances_allowed(self, get_kwarg):
+        # We allow certain dtype instances when there is a clear singleton
+        # and the given one is equivalent; mainly for backcompat.
+        int64 = np.dtype("int64")
+        int64_2 = pickle.loads(pickle.dumps(int64))
+        # Relies on pickling behavior, if assert fails just remove test...
+        assert int64 is not int64_2
+
+        assert np.add(1, 2, **get_kwarg(int64_2)).dtype == int64
+        td = np.timedelta64(2, "s")
+        assert np.add(td, td, **get_kwarg("m8")).dtype == "m8[s]"
+
+        msg = "The `dtype` and `signature` arguments to ufuncs"
+
+        with pytest.raises(TypeError, match=msg):
+            np.add(3, 5, **get_kwarg(np.dtype("int64").newbyteorder()))
+        with pytest.raises(TypeError, match=msg):
+            np.add(3, 5, **get_kwarg(np.dtype("m8[ns]")))
+        with pytest.raises(TypeError, match=msg):
+            np.add(3, 5, **get_kwarg("m8[ns]"))
+
+    @pytest.mark.parametrize("casting", ["unsafe", "same_kind", "safe"])
+    def test_partial_signature_mismatch(self, casting):
+        # If the second argument matches already, no need to specify it:
+        res = np.ldexp(np.float32(1.), np.int_(2), dtype="d")
+        assert res.dtype == "d"
+        res = np.ldexp(np.float32(1.), np.int_(2), signature=(None, None, "d"))
+        assert res.dtype == "d"
+
+        # ldexp only has a loop for long input as second argument, overriding
+        # the output cannot help with that (no matter the casting)
+        with pytest.raises(TypeError):
+            np.ldexp(1., np.uint64(3), dtype="d")
+        with pytest.raises(TypeError):
+            np.ldexp(1., np.uint64(3), signature=(None, None, "d"))
+
+    def test_partial_signature_mismatch_with_cache(self):
+        with pytest.raises(TypeError):
+            np.add(np.float16(1), np.uint64(2), sig=("e", "d", None))
+        # Ensure e,d->None is in the dispatching cache (double loop)
+        np.add(np.float16(1), np.float64(2))
+        # The error must still be raised:
+        with pytest.raises(TypeError):
+            np.add(np.float16(1), np.uint64(2), sig=("e", "d", None))
+
+    def test_use_output_signature_for_all_arguments(self):
+        # Test that providing only `dtype=` or `signature=(None, None, dtype)`
+        # is sufficient if falling back to a homogeneous signature works.
+        # In this case, the `intp, intp -> intp` loop is chosen.
+        res = np.power(1.5, 2.8, dtype=np.intp, casting="unsafe")
+        assert res == 1  # the cast happens first.
+        res = np.power(1.5, 2.8, signature=(None, None, np.intp),
+                       casting="unsafe")
+        assert res == 1
+        with pytest.raises(TypeError):
+            # the unsafe casting would normally cause errors though:
+            np.power(1.5, 2.8, dtype=np.intp)
+
+    def test_signature_errors(self):
+        with pytest.raises(TypeError,
+                    match="the signature object to ufunc must be a string or"):
+            np.add(3, 4, signature=123.)  # neither a string nor a tuple
+
+        with pytest.raises(ValueError):
+            # bad symbols that do not translate to dtypes
+            np.add(3, 4, signature="%^->#")
+
+        with pytest.raises(ValueError):
+            np.add(3, 4, signature=b"ii-i")  # incomplete and byte string
+
+        with pytest.raises(ValueError):
+            np.add(3, 4, signature="ii>i")  # incomplete string
+
+        with pytest.raises(ValueError):
+            np.add(3, 4, signature=(None, "f8"))  # bad length
+
+        with pytest.raises(UnicodeDecodeError):
+            np.add(3, 4, signature=b"\xff\xff->i")
+
+    def test_forced_dtype_times(self):
+        # Signatures only set the type numbers (not the actual loop dtypes)
+        # so using `M` in a signature/dtype should generally work:
+        a = np.array(['2010-01-02', '1999-03-14', '1833-03'], dtype='>M8[D]')
+        np.maximum(a, a, dtype="M")
+        np.maximum.reduce(a, dtype="M")
+
+        arr = np.arange(10, dtype="m8[s]")
+        np.add(arr, arr, dtype="m")
+        np.maximum(arr, arr, dtype="m")
+
+    @pytest.mark.parametrize("ufunc", [np.add, np.sqrt])
+    def test_cast_safety(self, ufunc):
+        """Basic test for the safest casts, because ufuncs inner loops can
+        indicate a cast-safety as well (which is normally always "no").
+        """
+        def call_ufunc(arr, **kwargs):
+            return ufunc(*(arr,) * ufunc.nin, **kwargs)
+
+        arr = np.array([1., 2., 3.], dtype=np.float32)
+        arr_bs = arr.astype(arr.dtype.newbyteorder())
+        expected = call_ufunc(arr)
+        # Normally, a "no" cast:
+        res = call_ufunc(arr, casting="no")
+        assert_array_equal(expected, res)
+        # Byte-swapping is not allowed with "no" though:
+        with pytest.raises(TypeError):
+            call_ufunc(arr_bs, casting="no")
+
+        # But is allowed with "equiv":
+        res = call_ufunc(arr_bs, casting="equiv")
+        assert_array_equal(expected, res)
+
+        # Casting to float64 is safe, but not equiv:
+        with pytest.raises(TypeError):
+            call_ufunc(arr_bs, dtype=np.float64, casting="equiv")
+
+        # but it is safe cast:
+        res = call_ufunc(arr_bs, dtype=np.float64, casting="safe")
+        expected = call_ufunc(arr.astype(np.float64))  # upcast
+        assert_array_equal(expected, res)
+
+    @pytest.mark.parametrize("ufunc", [np.add, np.equal])
+    def test_cast_safety_scalar(self, ufunc):
+        # We test add and equal, because equal has special scalar handling
+        # Note that the "equiv" casting behavior should maybe be considered
+        # a current implementation detail.
+        with pytest.raises(TypeError):
+            # this picks an integer loop, which is not safe
+            ufunc(3., 4., dtype=int, casting="safe")
+
+        with pytest.raises(TypeError):
+            # We accept python float as float64 but not float32 for equiv.
+            ufunc(3., 4., dtype="float32", casting="equiv")
+
+        # Special case for object and equal (note that equiv implies safe)
+        ufunc(3, 4, dtype=object, casting="equiv")
+        # Picks a double loop for both, first is equiv, second safe:
+        ufunc(np.array([3.]), 3., casting="equiv")
+        ufunc(np.array([3.]), 3, casting="safe")
+        ufunc(np.array([3]), 3, casting="equiv")
+
+    def test_cast_safety_scalar_special(self):
+        # We allow this (and it succeeds) via object, although the equiv
+        # part may not be important.
+        np.equal(np.array([3]), 2**300, casting="equiv")
+
+    def test_true_divide(self):
+        a = np.array(10)
+        b = np.array(20)
+        tgt = np.array(0.5)
+
+        for tc in 'bhilqBHILQefdgFDG':
+            dt = np.dtype(tc)
+            aa = a.astype(dt)
+            bb = b.astype(dt)
+
+            # Check result value and dtype.
+            for x, y in itertools.product([aa, -aa], [bb, -bb]):
+
+                # Check with no output type specified
+                if tc in 'FDG':
+                    tgt = complex(x) / complex(y)
+                else:
+                    tgt = float(x) / float(y)
+
+                res = np.true_divide(x, y)
+                rtol = max(np.finfo(res).resolution, 1e-15)
+                assert_allclose(res, tgt, rtol=rtol)
+
+                if tc in 'bhilqBHILQ':
+                    assert_(res.dtype.name == 'float64')
+                else:
+                    assert_(res.dtype.name == dt.name)
+
+                # Check with output type specified.  This also checks for the
+                # incorrect casts in issue gh-3484 because the unary '-' does
+                # not change types, even for unsigned types, Hence casts in the
+                # ufunc from signed to unsigned and vice versa will lead to
+                # errors in the values.
+                for tcout in 'bhilqBHILQ':
+                    dtout = np.dtype(tcout)
+                    assert_raises(TypeError, np.true_divide, x, y, dtype=dtout)
+
+                for tcout in 'efdg':
+                    dtout = np.dtype(tcout)
+                    if tc in 'FDG':
+                        # Casting complex to float is not allowed
+                        assert_raises(TypeError, np.true_divide, x, y, dtype=dtout)
+                    else:
+                        tgt = float(x) / float(y)
+                        rtol = max(np.finfo(dtout).resolution, 1e-15)
+                        # The value of tiny for double double is NaN
+                        with warnings.catch_warnings():
+                            warnings.simplefilter('ignore', UserWarning)
+                            if not np.isnan(np.finfo(dtout).tiny):
+                                atol = max(np.finfo(dtout).tiny, 3e-308)
+                            else:
+                                atol = 3e-308
+                        # Some test values result in invalid for float16
+                        # and the cast to it may overflow to inf.
+                        with np.errstate(invalid='ignore', over='ignore'):
+                            res = np.true_divide(x, y, dtype=dtout)
+                        if not np.isfinite(res) and tcout == 'e':
+                            continue
+                        assert_allclose(res, tgt, rtol=rtol, atol=atol)
+                        assert_(res.dtype.name == dtout.name)
+
+                for tcout in 'FDG':
+                    dtout = np.dtype(tcout)
+                    tgt = complex(x) / complex(y)
+                    rtol = max(np.finfo(dtout).resolution, 1e-15)
+                    # The value of tiny for double double is NaN
+                    with warnings.catch_warnings():
+                        warnings.simplefilter('ignore', UserWarning)
+                        if not np.isnan(np.finfo(dtout).tiny):
+                            atol = max(np.finfo(dtout).tiny, 3e-308)
+                        else:
+                            atol = 3e-308
+                    res = np.true_divide(x, y, dtype=dtout)
+                    if not np.isfinite(res):
+                        continue
+                    assert_allclose(res, tgt, rtol=rtol, atol=atol)
+                    assert_(res.dtype.name == dtout.name)
+
+        # Check booleans
+        a = np.ones((), dtype=np.bool)
+        res = np.true_divide(a, a)
+        assert_(res == 1.0)
+        assert_(res.dtype.name == 'float64')
+        res = np.true_divide(~a, a)
+        assert_(res == 0.0)
+        assert_(res.dtype.name == 'float64')
+
+    def test_sum_stability(self):
+        a = np.ones(500, dtype=np.float32)
+        assert_almost_equal((a / 10.).sum() - a.size / 10., 0, 4)
+
+        a = np.ones(500, dtype=np.float64)
+        assert_almost_equal((a / 10.).sum() - a.size / 10., 0, 13)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_sum(self):
+        for dt in (int, np.float16, np.float32, np.float64, np.longdouble):
+            for v in (0, 1, 2, 7, 8, 9, 15, 16, 19, 127,
+                      128, 1024, 1235):
+                # warning if sum overflows, which it does in float16
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter("always", RuntimeWarning)
+
+                    tgt = dt(v * (v + 1) / 2)
+                    overflow = not np.isfinite(tgt)
+                    assert_equal(len(w), 1 * overflow)
+
+                    d = np.arange(1, v + 1, dtype=dt)
+
+                    assert_almost_equal(np.sum(d), tgt)
+                    assert_equal(len(w), 2 * overflow)
+
+                    assert_almost_equal(np.sum(d[::-1]), tgt)
+                    assert_equal(len(w), 3 * overflow)
+
+            d = np.ones(500, dtype=dt)
+            assert_almost_equal(np.sum(d[::2]), 250.)
+            assert_almost_equal(np.sum(d[1::2]), 250.)
+            assert_almost_equal(np.sum(d[::3]), 167.)
+            assert_almost_equal(np.sum(d[1::3]), 167.)
+            assert_almost_equal(np.sum(d[::-2]), 250.)
+            assert_almost_equal(np.sum(d[-1::-2]), 250.)
+            assert_almost_equal(np.sum(d[::-3]), 167.)
+            assert_almost_equal(np.sum(d[-1::-3]), 167.)
+            # sum with first reduction entry != 0
+            d = np.ones((1,), dtype=dt)
+            d += d
+            assert_almost_equal(d, 2.)
+
+    def test_sum_complex(self):
+        for dt in (np.complex64, np.complex128, np.clongdouble):
+            for v in (0, 1, 2, 7, 8, 9, 15, 16, 19, 127,
+                      128, 1024, 1235):
+                tgt = dt(v * (v + 1) / 2) - dt((v * (v + 1) / 2) * 1j)
+                d = np.empty(v, dtype=dt)
+                d.real = np.arange(1, v + 1)
+                d.imag = -np.arange(1, v + 1)
+                assert_almost_equal(np.sum(d), tgt)
+                assert_almost_equal(np.sum(d[::-1]), tgt)
+
+            d = np.ones(500, dtype=dt) + 1j
+            assert_almost_equal(np.sum(d[::2]), 250. + 250j)
+            assert_almost_equal(np.sum(d[1::2]), 250. + 250j)
+            assert_almost_equal(np.sum(d[::3]), 167. + 167j)
+            assert_almost_equal(np.sum(d[1::3]), 167. + 167j)
+            assert_almost_equal(np.sum(d[::-2]), 250. + 250j)
+            assert_almost_equal(np.sum(d[-1::-2]), 250. + 250j)
+            assert_almost_equal(np.sum(d[::-3]), 167. + 167j)
+            assert_almost_equal(np.sum(d[-1::-3]), 167. + 167j)
+            # sum with first reduction entry != 0
+            d = np.ones((1,), dtype=dt) + 1j
+            d += d
+            assert_almost_equal(d, 2. + 2j)
+
+    def test_sum_initial(self):
+        # Integer, single axis
+        assert_equal(np.sum([3], initial=2), 5)
+
+        # Floating point
+        assert_almost_equal(np.sum([0.2], initial=0.1), 0.3)
+
+        # Multiple non-adjacent axes
+        assert_equal(np.sum(np.ones((2, 3, 5), dtype=np.int64), axis=(0, 2), initial=2),
+                     [12, 12, 12])
+
+    def test_sum_where(self):
+        # More extensive tests done in test_reduction_with_where.
+        assert_equal(np.sum([[1., 2.], [3., 4.]], where=[True, False]), 4.)
+        assert_equal(np.sum([[1., 2.], [3., 4.]], axis=0, initial=5.,
+                            where=[True, False]), [9., 5.])
+
+    def test_vecdot(self):
+        arr1 = np.arange(6).reshape((2, 3))
+        arr2 = np.arange(3).reshape((1, 3))
+
+        actual = np.vecdot(arr1, arr2)
+        expected = np.array([5, 14])
+
+        assert_array_equal(actual, expected)
+
+        actual2 = np.vecdot(arr1.T, arr2.T, axis=-2)
+        assert_array_equal(actual2, expected)
+
+        actual3 = np.vecdot(arr1.astype("object"), arr2)
+        assert_array_equal(actual3, expected.astype("object"))
+
+    def test_matvec(self):
+        arr1 = np.arange(6).reshape((2, 3))
+        arr2 = np.arange(3).reshape((1, 3))
+
+        actual = np.matvec(arr1, arr2)
+        expected = np.array([[5, 14]])
+
+        assert_array_equal(actual, expected)
+
+        actual2 = np.matvec(arr1.T, arr2.T, axes=[(-1, -2), -2, -1])
+        assert_array_equal(actual2, expected)
+
+        actual3 = np.matvec(arr1.astype("object"), arr2)
+        assert_array_equal(actual3, expected.astype("object"))
+
+    @pytest.mark.parametrize("vec", [
+        np.array([[1., 2., 3.], [4., 5., 6.]]),
+        np.array([[1., 2j, 3.], [4., 5., 6j]]),
+        np.array([[1., 2., 3.], [4., 5., 6.]], dtype=object),
+        np.array([[1., 2j, 3.], [4., 5., 6j]], dtype=object)])
+    @pytest.mark.parametrize("matrix", [
+        None,
+        np.array([[1. + 1j, 0.5, -0.5j],
+                  [0.25, 2j, 0.],
+                  [4., 0., -1j]])])
+    def test_vecmatvec_identity(self, matrix, vec):
+        """Check that (x†A)x equals x†(Ax)."""
+        mat = matrix if matrix is not None else np.eye(3)
+        matvec = np.matvec(mat, vec)  # Ax
+        vecmat = np.vecmat(vec, mat)  # x†A
+        if matrix is None:
+            assert_array_equal(matvec, vec)
+            assert_array_equal(vecmat.conj(), vec)
+        assert_array_equal(matvec, (mat @ vec[..., np.newaxis]).squeeze(-1))
+        assert_array_equal(vecmat, (vec[..., np.newaxis].mT.conj()
+                                    @ mat).squeeze(-2))
+        expected = np.einsum('...i,ij,...j', vec.conj(), mat, vec)
+        vec_matvec = (vec.conj() * matvec).sum(-1)
+        vecmat_vec = (vecmat * vec).sum(-1)
+        assert_array_equal(vec_matvec, expected)
+        assert_array_equal(vecmat_vec, expected)
+
+    @pytest.mark.parametrize("ufunc, shape1, shape2, conj", [
+        (np.vecdot, (3,), (3,), True),
+        (np.vecmat, (3,), (3, 1), True),
+        (np.matvec, (1, 3), (3,), False),
+        (np.matmul, (1, 3), (3, 1), False),
+    ])
+    def test_vecdot_matvec_vecmat_complex(self, ufunc, shape1, shape2, conj):
+        arr1 = np.array([1, 2j, 3])
+        arr2 = np.array([1, 2, 3])
+
+        actual1 = ufunc(arr1.reshape(shape1), arr2.reshape(shape2))
+        expected1 = np.array(((arr1.conj() if conj else arr1) * arr2).sum(),
+                             ndmin=min(len(shape1), len(shape2)))
+        assert_array_equal(actual1, expected1)
+        # This would fail for conj=True, since matmul omits the conjugate.
+        if not conj:
+            assert_array_equal(arr1.reshape(shape1) @ arr2.reshape(shape2),
+                               expected1)
+
+        actual2 = ufunc(arr2.reshape(shape1), arr1.reshape(shape2))
+        expected2 = np.array(((arr2.conj() if conj else arr2) * arr1).sum(),
+                             ndmin=min(len(shape1), len(shape2)))
+        assert_array_equal(actual2, expected2)
+
+        actual3 = ufunc(arr1.reshape(shape1).astype("object"),
+                        arr2.reshape(shape2).astype("object"))
+        expected3 = expected1.astype(object)
+        assert_array_equal(actual3, expected3)
+
+    def test_vecdot_subclass(self):
+        class MySubclass(np.ndarray):
+            pass
+
+        arr1 = np.arange(6).reshape((2, 3)).view(MySubclass)
+        arr2 = np.arange(3).reshape((1, 3)).view(MySubclass)
+        result = np.vecdot(arr1, arr2)
+        assert isinstance(result, MySubclass)
+
+    def test_vecdot_object_no_conjugate(self):
+        arr = np.array(["1", "2"], dtype=object)
+        with pytest.raises(AttributeError, match="conjugate"):
+            np.vecdot(arr, arr)
+
+    def test_vecdot_object_breaks_outer_loop_on_error(self):
+        arr1 = np.ones((3, 3)).astype(object)
+        arr2 = arr1.copy()
+        arr2[1, 1] = None
+        out = np.zeros(3).astype(object)
+        with pytest.raises(TypeError, match=r"\*: 'float' and 'NoneType'"):
+            np.vecdot(arr1, arr2, out=out)
+        assert out[0] == 3
+        assert out[1] == out[2] == 0
+
+    def test_broadcast(self):
+        msg = "broadcast"
+        a = np.arange(4).reshape((2, 1, 2))
+        b = np.arange(4).reshape((1, 2, 2))
+        assert_array_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), err_msg=msg)
+        msg = "extend & broadcast loop dimensions"
+        b = np.arange(4).reshape((2, 2))
+        assert_array_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), err_msg=msg)
+        # Broadcast in core dimensions should fail
+        a = np.arange(8).reshape((4, 2))
+        b = np.arange(4).reshape((4, 1))
+        assert_raises(ValueError, np.vecdot, a, b)
+        # Extend core dimensions should fail
+        a = np.arange(8).reshape((4, 2))
+        b = np.array(7)
+        assert_raises(ValueError, np.vecdot, a, b)
+        # Broadcast should fail
+        a = np.arange(2).reshape((2, 1, 1))
+        b = np.arange(3).reshape((3, 1, 1))
+        assert_raises(ValueError, np.vecdot, a, b)
+
+        # Writing to a broadcasted array with overlap should warn, gh-2705
+        a = np.arange(2)
+        b = np.arange(4).reshape((2, 2))
+        u, v = np.broadcast_arrays(a, b)
+        assert_equal(u.strides[0], 0)
+        x = u + v
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always")
+            u += v
+            assert_equal(len(w), 1)
+            assert_(x[0, 0] != u[0, 0])
+
+        # Output reduction should not be allowed.
+        # See gh-15139
+        a = np.arange(6).reshape(3, 2)
+        b = np.ones(2)
+        out = np.empty(())
+        assert_raises(ValueError, np.vecdot, a, b, out)
+        out2 = np.empty(3)
+        c = np.vecdot(a, b, out2)
+        assert_(c is out2)
+
+    def test_out_broadcasts(self):
+        # For ufuncs and gufuncs (not for reductions), we currently allow
+        # the output to cause broadcasting of the input arrays.
+        # both along dimensions with shape 1 and dimensions which do not
+        # exist at all in the inputs.
+        arr = np.arange(3).reshape(1, 3)
+        out = np.empty((5, 4, 3))
+        np.add(arr, arr, out=out)
+        assert (out == np.arange(3) * 2).all()
+
+        # The same holds for gufuncs (gh-16484)
+        np.vecdot(arr, arr, out=out)
+        # the result would be just a scalar `5`, but is broadcast fully:
+        assert (out == 5).all()
+
+    @pytest.mark.parametrize(["arr", "out"], [
+                ([2], np.empty(())),
+                ([1, 2], np.empty(1)),
+                (np.ones((4, 3)), np.empty((4, 1)))],
+            ids=["(1,)->()", "(2,)->(1,)", "(4, 3)->(4, 1)"])
+    def test_out_broadcast_errors(self, arr, out):
+        # Output is (currently) allowed to broadcast inputs, but it cannot be
+        # smaller than the actual result.
+        with pytest.raises(ValueError, match="non-broadcastable"):
+            np.positive(arr, out=out)
+
+        with pytest.raises(ValueError, match="non-broadcastable"):
+            np.add(np.ones(()), arr, out=out)
+
+    def test_type_cast(self):
+        msg = "type cast"
+        a = np.arange(6, dtype='short').reshape((2, 3))
+        assert_array_equal(np.vecdot(a, a), np.sum(a * a, axis=-1),
+                           err_msg=msg)
+        msg = "type cast on one argument"
+        a = np.arange(6).reshape((2, 3))
+        b = a + 0.1
+        assert_array_almost_equal(np.vecdot(a, b), np.sum(a * b, axis=-1),
+                                  err_msg=msg)
+
+    def test_endian(self):
+        msg = "big endian"
+        a = np.arange(6, dtype='>i4').reshape((2, 3))
+        assert_array_equal(np.vecdot(a, a), np.sum(a * a, axis=-1),
+                           err_msg=msg)
+        msg = "little endian"
+        a = np.arange(6, dtype='<i4').reshape((2, 3))
+        assert_array_equal(np.vecdot(a, a), np.sum(a * a, axis=-1),
+                           err_msg=msg)
+
+        # Output should always be native-endian
+        Ba = np.arange(1, dtype='>f8')
+        La = np.arange(1, dtype='<f8')
+        assert_equal((Ba + Ba).dtype, np.dtype('f8'))
+        assert_equal((Ba + La).dtype, np.dtype('f8'))
+        assert_equal((La + Ba).dtype, np.dtype('f8'))
+        assert_equal((La + La).dtype, np.dtype('f8'))
+
+        assert_equal(np.absolute(La).dtype, np.dtype('f8'))
+        assert_equal(np.absolute(Ba).dtype, np.dtype('f8'))
+        assert_equal(np.negative(La).dtype, np.dtype('f8'))
+        assert_equal(np.negative(Ba).dtype, np.dtype('f8'))
+
+    def test_incontiguous_array(self):
+        msg = "incontiguous memory layout of array"
+        x = np.arange(64).reshape((2, 2, 2, 2, 2, 2))
+        a = x[:, 0, :, 0, :, 0]
+        b = x[:, 1, :, 1, :, 1]
+        a[0, 0, 0] = -1
+        msg2 = "make sure it references to the original array"
+        assert_equal(x[0, 0, 0, 0, 0, 0], -1, err_msg=msg2)
+        assert_array_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), err_msg=msg)
+        x = np.arange(24).reshape(2, 3, 4)
+        a = x.T
+        b = x.T
+        a[0, 0, 0] = -1
+        assert_equal(x[0, 0, 0], -1, err_msg=msg2)
+        assert_array_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), err_msg=msg)
+
+    def test_output_argument(self):
+        msg = "output argument"
+        a = np.arange(12).reshape((2, 3, 2))
+        b = np.arange(4).reshape((2, 1, 2)) + 1
+        c = np.zeros((2, 3), dtype='int')
+        np.vecdot(a, b, c)
+        assert_array_equal(c, np.sum(a * b, axis=-1), err_msg=msg)
+        c[:] = -1
+        np.vecdot(a, b, out=c)
+        assert_array_equal(c, np.sum(a * b, axis=-1), err_msg=msg)
+
+        msg = "output argument with type cast"
+        c = np.zeros((2, 3), dtype='int16')
+        np.vecdot(a, b, c)
+        assert_array_equal(c, np.sum(a * b, axis=-1), err_msg=msg)
+        c[:] = -1
+        np.vecdot(a, b, out=c)
+        assert_array_equal(c, np.sum(a * b, axis=-1), err_msg=msg)
+
+        msg = "output argument with incontiguous layout"
+        c = np.zeros((2, 3, 4), dtype='int16')
+        np.vecdot(a, b, c[..., 0])
+        assert_array_equal(c[..., 0], np.sum(a * b, axis=-1), err_msg=msg)
+        c[:] = -1
+        np.vecdot(a, b, out=c[..., 0])
+        assert_array_equal(c[..., 0], np.sum(a * b, axis=-1), err_msg=msg)
+
+    @pytest.mark.parametrize("arg", ["array", "scalar", "subclass"])
+    def test_output_ellipsis(self, arg):
+        class subclass(np.ndarray):
+            def __array_wrap__(self, obj, context=None, return_value=None):
+                return super().__array_wrap__(obj, context, return_value)
+
+        if arg == "scalar":
+            one = 1
+            expected_type = np.ndarray
+        elif arg == "array":
+            one = np.array(1)
+            expected_type = np.ndarray
+        elif arg == "subclass":
+            one = np.array(1).view(subclass)
+            expected_type = subclass
+
+        assert type(np.add(one, 2, out=...)) is expected_type
+        assert type(np.add.reduce(one, out=...)) is expected_type
+        res1, res2 = np.divmod(one, 2, out=...)
+        assert type(res1) is type(res2) is expected_type
+
+    def test_output_ellipsis_errors(self):
+        with pytest.raises(TypeError,
+                match=r"out=\.\.\. is only allowed as a keyword argument."):
+            np.add(1, 2, ...)
+
+        with pytest.raises(TypeError,
+                match=r"out=\.\.\. is only allowed as a keyword argument."):
+            np.add.reduce(1, (), None, ...)
+
+        type_error = r"must use `\.\.\.` as `out=\.\.\.` and not per-operand/in a tuple"
+        with pytest.raises(TypeError, match=type_error):
+            np.negative(1, out=(...,))
+
+        with pytest.raises(TypeError, match=type_error):
+            # We only allow out=... not individual args for now
+            np.divmod(1, 2, out=(np.empty(()), ...))
+
+        with pytest.raises(TypeError, match=type_error):
+            np.add.reduce(1, out=(...,))
+
+    def test_axes_argument(self):
+        # vecdot signature: '(n),(n)->()'
+        a = np.arange(27.).reshape((3, 3, 3))
+        b = np.arange(10., 19.).reshape((3, 1, 3))
+        # basic tests on inputs (outputs tested below with matrix_multiply).
+        c = np.vecdot(a, b)
+        assert_array_equal(c, (a * b).sum(-1))
+        # default
+        c = np.vecdot(a, b, axes=[(-1,), (-1,), ()])
+        assert_array_equal(c, (a * b).sum(-1))
+        # integers ok for single axis.
+        c = np.vecdot(a, b, axes=[-1, -1, ()])
+        assert_array_equal(c, (a * b).sum(-1))
+        # mix fine
+        c = np.vecdot(a, b, axes=[(-1,), -1, ()])
+        assert_array_equal(c, (a * b).sum(-1))
+        # can omit last axis.
+        c = np.vecdot(a, b, axes=[-1, -1])
+        assert_array_equal(c, (a * b).sum(-1))
+        # can pass in other types of integer (with __index__ protocol)
+        c = np.vecdot(a, b, axes=[np.int8(-1), np.array(-1, dtype=np.int32)])
+        assert_array_equal(c, (a * b).sum(-1))
+        # swap some axes
+        c = np.vecdot(a, b, axes=[0, 0])
+        assert_array_equal(c, (a * b).sum(0))
+        c = np.vecdot(a, b, axes=[0, 2])
+        assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1))
+        # Check errors for improperly constructed axes arguments.
+        # should have list.
+        assert_raises(TypeError, np.vecdot, a, b, axes=-1)
+        # needs enough elements
+        assert_raises(ValueError, np.vecdot, a, b, axes=[-1])
+        # should pass in indices.
+        assert_raises(TypeError, np.vecdot, a, b, axes=[-1.0, -1.0])
+        assert_raises(TypeError, np.vecdot, a, b, axes=[(-1.0,), -1])
+        assert_raises(TypeError, np.vecdot, a, b, axes=[None, 1])
+        # cannot pass an index unless there is only one dimension
+        # (output is wrong in this case)
+        assert_raises(AxisError, np.vecdot, a, b, axes=[-1, -1, -1])
+        # or pass in generally the wrong number of axes
+        assert_raises(AxisError, np.vecdot, a, b, axes=[-1, -1, (-1,)])
+        assert_raises(AxisError, np.vecdot, a, b, axes=[-1, (-2, -1), ()])
+        # axes need to have same length.
+        assert_raises(ValueError, np.vecdot, a, b, axes=[0, 1])
+
+        # matrix_multiply signature: '(m,n),(n,p)->(m,p)'
+        mm = umt.matrix_multiply
+        a = np.arange(12).reshape((2, 3, 2))
+        b = np.arange(8).reshape((2, 2, 2, 1)) + 1
+        # Sanity check.
+        c = mm(a, b)
+        assert_array_equal(c, np.matmul(a, b))
+        # Default axes.
+        c = mm(a, b, axes=[(-2, -1), (-2, -1), (-2, -1)])
+        assert_array_equal(c, np.matmul(a, b))
+        # Default with explicit axes.
+        c = mm(a, b, axes=[(1, 2), (2, 3), (2, 3)])
+        assert_array_equal(c, np.matmul(a, b))
+        # swap some axes.
+        c = mm(a, b, axes=[(0, -1), (1, 2), (-2, -1)])
+        assert_array_equal(c, np.matmul(a.transpose(1, 0, 2),
+                                        b.transpose(0, 3, 1, 2)))
+        # Default with output array.
+        c = np.empty((2, 2, 3, 1))
+        d = mm(a, b, out=c, axes=[(1, 2), (2, 3), (2, 3)])
+        assert_(c is d)
+        assert_array_equal(c, np.matmul(a, b))
+        # Transposed output array
+        c = np.empty((1, 2, 2, 3))
+        d = mm(a, b, out=c, axes=[(-2, -1), (-2, -1), (3, 0)])
+        assert_(c is d)
+        assert_array_equal(c, np.matmul(a, b).transpose(3, 0, 1, 2))
+        # Check errors for improperly constructed axes arguments.
+        # wrong argument
+        assert_raises(TypeError, mm, a, b, axis=1)
+        # axes should be list
+        assert_raises(TypeError, mm, a, b, axes=1)
+        assert_raises(TypeError, mm, a, b, axes=((-2, -1), (-2, -1), (-2, -1)))
+        # list needs to have right length
+        assert_raises(ValueError, mm, a, b, axes=[])
+        assert_raises(ValueError, mm, a, b, axes=[(-2, -1)])
+        # list should not contain None, or lists
+        assert_raises(TypeError, mm, a, b, axes=[None, None, None])
+        assert_raises(TypeError,
+                      mm, a, b, axes=[[-2, -1], [-2, -1], [-2, -1]])
+        assert_raises(TypeError,
+                      mm, a, b, axes=[(-2, -1), (-2, -1), [-2, -1]])
+        assert_raises(TypeError, mm, a, b, axes=[(-2, -1), (-2, -1), None])
+        # single integers are AxisErrors if more are required
+        assert_raises(AxisError, mm, a, b, axes=[-1, -1, -1])
+        assert_raises(AxisError, mm, a, b, axes=[(-2, -1), (-2, -1), -1])
+        # tuples should not have duplicated values
+        assert_raises(ValueError, mm, a, b, axes=[(-2, -1), (-2, -1), (-2, -2)])
+        # arrays should have enough axes.
+        z = np.zeros((2, 2))
+        assert_raises(ValueError, mm, z, z[0])
+        assert_raises(ValueError, mm, z, z, out=z[:, 0])
+        assert_raises(ValueError, mm, z[1], z, axes=[0, 1])
+        assert_raises(ValueError, mm, z, z, out=z[0], axes=[0, 1])
+        # Regular ufuncs should not accept axes.
+        assert_raises(TypeError, np.add, 1., 1., axes=[0])
+        # should be able to deal with bad unrelated kwargs.
+        assert_raises(TypeError, mm, z, z, axes=[0, 1], parrot=True)
+
+    def test_axis_argument(self):
+        # vecdot signature: '(n),(n)->()'
+        a = np.arange(27.).reshape((3, 3, 3))
+        b = np.arange(10., 19.).reshape((3, 1, 3))
+        c = np.vecdot(a, b)
+        assert_array_equal(c, (a * b).sum(-1))
+        c = np.vecdot(a, b, axis=-1)
+        assert_array_equal(c, (a * b).sum(-1))
+        out = np.zeros_like(c)
+        d = np.vecdot(a, b, axis=-1, out=out)
+        assert_(d is out)
+        assert_array_equal(d, c)
+        c = np.vecdot(a, b, axis=0)
+        assert_array_equal(c, (a * b).sum(0))
+        # Sanity checks on innerwt and cumsum.
+        a = np.arange(6).reshape((2, 3))
+        b = np.arange(10, 16).reshape((2, 3))
+        w = np.arange(20, 26).reshape((2, 3))
+        assert_array_equal(umt.innerwt(a, b, w, axis=0),
+                           np.sum(a * b * w, axis=0))
+        assert_array_equal(umt.cumsum(a, axis=0), np.cumsum(a, axis=0))
+        assert_array_equal(umt.cumsum(a, axis=-1), np.cumsum(a, axis=-1))
+        out = np.empty_like(a)
+        b = umt.cumsum(a, out=out, axis=0)
+        assert_(out is b)
+        assert_array_equal(b, np.cumsum(a, axis=0))
+        b = umt.cumsum(a, out=out, axis=1)
+        assert_(out is b)
+        assert_array_equal(b, np.cumsum(a, axis=-1))
+        # Check errors.
+        # Cannot pass in both axis and axes.
+        assert_raises(TypeError, np.vecdot, a, b, axis=0, axes=[0, 0])
+        # Not an integer.
+        assert_raises(TypeError, np.vecdot, a, b, axis=[0])
+        # more than 1 core dimensions.
+        mm = umt.matrix_multiply
+        assert_raises(TypeError, mm, a, b, axis=1)
+        # Output wrong size in axis.
+        out = np.empty((1, 2, 3), dtype=a.dtype)
+        assert_raises(ValueError, umt.cumsum, a, out=out, axis=0)
+        # Regular ufuncs should not accept axis.
+        assert_raises(TypeError, np.add, 1., 1., axis=0)
+
+    def test_keepdims_argument(self):
+        # vecdot signature: '(n),(n)->()'
+        a = np.arange(27.).reshape((3, 3, 3))
+        b = np.arange(10., 19.).reshape((3, 1, 3))
+        c = np.vecdot(a, b)
+        assert_array_equal(c, (a * b).sum(-1))
+        c = np.vecdot(a, b, keepdims=False)
+        assert_array_equal(c, (a * b).sum(-1))
+        c = np.vecdot(a, b, keepdims=True)
+        assert_array_equal(c, (a * b).sum(-1, keepdims=True))
+        out = np.zeros_like(c)
+        d = np.vecdot(a, b, keepdims=True, out=out)
+        assert_(d is out)
+        assert_array_equal(d, c)
+        # Now combined with axis and axes.
+        c = np.vecdot(a, b, axis=-1, keepdims=False)
+        assert_array_equal(c, (a * b).sum(-1, keepdims=False))
+        c = np.vecdot(a, b, axis=-1, keepdims=True)
+        assert_array_equal(c, (a * b).sum(-1, keepdims=True))
+        c = np.vecdot(a, b, axis=0, keepdims=False)
+        assert_array_equal(c, (a * b).sum(0, keepdims=False))
+        c = np.vecdot(a, b, axis=0, keepdims=True)
+        assert_array_equal(c, (a * b).sum(0, keepdims=True))
+        c = np.vecdot(a, b, axes=[(-1,), (-1,), ()], keepdims=False)
+        assert_array_equal(c, (a * b).sum(-1))
+        c = np.vecdot(a, b, axes=[(-1,), (-1,), (-1,)], keepdims=True)
+        assert_array_equal(c, (a * b).sum(-1, keepdims=True))
+        c = np.vecdot(a, b, axes=[0, 0], keepdims=False)
+        assert_array_equal(c, (a * b).sum(0))
+        c = np.vecdot(a, b, axes=[0, 0, 0], keepdims=True)
+        assert_array_equal(c, (a * b).sum(0, keepdims=True))
+        c = np.vecdot(a, b, axes=[0, 2], keepdims=False)
+        assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1))
+        c = np.vecdot(a, b, axes=[0, 2], keepdims=True)
+        assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1,
+                                                             keepdims=True))
+        c = np.vecdot(a, b, axes=[0, 2, 2], keepdims=True)
+        assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1,
+                                                             keepdims=True))
+        c = np.vecdot(a, b, axes=[0, 2, 0], keepdims=True)
+        assert_array_equal(c, (a * b.transpose(2, 0, 1)).sum(0, keepdims=True))
+        # Hardly useful, but should work.
+        c = np.vecdot(a, b, axes=[0, 2, 1], keepdims=True)
+        assert_array_equal(c, (a.transpose(1, 0, 2) * b.transpose(0, 2, 1))
+                           .sum(1, keepdims=True))
+        # Check with two core dimensions.
+        a = np.eye(3) * np.arange(4.)[:, np.newaxis, np.newaxis]
+        expected = uml.det(a)
+        c = uml.det(a, keepdims=False)
+        assert_array_equal(c, expected)
+        c = uml.det(a, keepdims=True)
+        assert_array_equal(c, expected[:, np.newaxis, np.newaxis])
+        a = np.eye(3) * np.arange(4.)[:, np.newaxis, np.newaxis]
+        expected_s, expected_l = uml.slogdet(a)
+        cs, cl = uml.slogdet(a, keepdims=False)
+        assert_array_equal(cs, expected_s)
+        assert_array_equal(cl, expected_l)
+        cs, cl = uml.slogdet(a, keepdims=True)
+        assert_array_equal(cs, expected_s[:, np.newaxis, np.newaxis])
+        assert_array_equal(cl, expected_l[:, np.newaxis, np.newaxis])
+        # Sanity check on innerwt.
+        a = np.arange(6).reshape((2, 3))
+        b = np.arange(10, 16).reshape((2, 3))
+        w = np.arange(20, 26).reshape((2, 3))
+        assert_array_equal(umt.innerwt(a, b, w, keepdims=True),
+                           np.sum(a * b * w, axis=-1, keepdims=True))
+        assert_array_equal(umt.innerwt(a, b, w, axis=0, keepdims=True),
+                           np.sum(a * b * w, axis=0, keepdims=True))
+        # Check errors.
+        # Not a boolean
+        assert_raises(TypeError, np.vecdot, a, b, keepdims='true')
+        # More than 1 core dimension, and core output dimensions.
+        mm = umt.matrix_multiply
+        assert_raises(TypeError, mm, a, b, keepdims=True)
+        assert_raises(TypeError, mm, a, b, keepdims=False)
+        # Regular ufuncs should not accept keepdims.
+        assert_raises(TypeError, np.add, 1., 1., keepdims=False)
+
+    def test_innerwt(self):
+        a = np.arange(6).reshape((2, 3))
+        b = np.arange(10, 16).reshape((2, 3))
+        w = np.arange(20, 26).reshape((2, 3))
+        assert_array_equal(umt.innerwt(a, b, w), np.sum(a * b * w, axis=-1))
+        a = np.arange(100, 124).reshape((2, 3, 4))
+        b = np.arange(200, 224).reshape((2, 3, 4))
+        w = np.arange(300, 324).reshape((2, 3, 4))
+        assert_array_equal(umt.innerwt(a, b, w), np.sum(a * b * w, axis=-1))
+
+    def test_innerwt_empty(self):
+        """Test generalized ufunc with zero-sized operands"""
+        a = np.array([], dtype='f8')
+        b = np.array([], dtype='f8')
+        w = np.array([], dtype='f8')
+        assert_array_equal(umt.innerwt(a, b, w), np.sum(a * b * w, axis=-1))
+
+    def test_cross1d(self):
+        """Test with fixed-sized signature."""
+        a = np.eye(3)
+        assert_array_equal(umt.cross1d(a, a), np.zeros((3, 3)))
+        out = np.zeros((3, 3))
+        result = umt.cross1d(a[0], a, out)
+        assert_(result is out)
+        assert_array_equal(result, np.vstack((np.zeros(3), a[2], -a[1])))
+        assert_raises(ValueError, umt.cross1d, np.eye(4), np.eye(4))
+        assert_raises(ValueError, umt.cross1d, a, np.arange(4.))
+        # Wrong output core dimension.
+        assert_raises(ValueError, umt.cross1d, a, np.arange(3.), np.zeros((3, 4)))
+        # Wrong output broadcast dimension (see gh-15139).
+        assert_raises(ValueError, umt.cross1d, a, np.arange(3.), np.zeros(3))
+
+    def test_can_ignore_signature(self):
+        # Comparing the effects of ? in signature:
+        # matrix_multiply: (m,n),(n,p)->(m,p)    # all must be there.
+        # matmul:        (m?,n),(n,p?)->(m?,p?)  # allow missing m, p.
+        mat = np.arange(12).reshape((2, 3, 2))
+        single_vec = np.arange(2)
+        col_vec = single_vec[:, np.newaxis]
+        col_vec_array = np.arange(8).reshape((2, 2, 2, 1)) + 1
+        # matrix @ single column vector with proper dimension
+        mm_col_vec = umt.matrix_multiply(mat, col_vec)
+        # matmul does the same thing
+        matmul_col_vec = umt.matmul(mat, col_vec)
+        assert_array_equal(matmul_col_vec, mm_col_vec)
+        # matrix @ vector without dimension making it a column vector.
+        # matrix multiply fails -> missing core dim.
+        assert_raises(ValueError, umt.matrix_multiply, mat, single_vec)
+        # matmul mimicker passes, and returns a vector.
+        matmul_col = umt.matmul(mat, single_vec)
+        assert_array_equal(matmul_col, mm_col_vec.squeeze())
+        # Now with a column array: same as for column vector,
+        # broadcasting sensibly.
+        mm_col_vec = umt.matrix_multiply(mat, col_vec_array)
+        matmul_col_vec = umt.matmul(mat, col_vec_array)
+        assert_array_equal(matmul_col_vec, mm_col_vec)
+        # As above, but for row vector
+        single_vec = np.arange(3)
+        row_vec = single_vec[np.newaxis, :]
+        row_vec_array = np.arange(24).reshape((4, 2, 1, 1, 3)) + 1
+        # row vector @ matrix
+        mm_row_vec = umt.matrix_multiply(row_vec, mat)
+        matmul_row_vec = umt.matmul(row_vec, mat)
+        assert_array_equal(matmul_row_vec, mm_row_vec)
+        # single row vector @ matrix
+        assert_raises(ValueError, umt.matrix_multiply, single_vec, mat)
+        matmul_row = umt.matmul(single_vec, mat)
+        assert_array_equal(matmul_row, mm_row_vec.squeeze())
+        # row vector array @ matrix
+        mm_row_vec = umt.matrix_multiply(row_vec_array, mat)
+        matmul_row_vec = umt.matmul(row_vec_array, mat)
+        assert_array_equal(matmul_row_vec, mm_row_vec)
+        # Now for vector combinations
+        # row vector @ column vector
+        col_vec = row_vec.T
+        col_vec_array = row_vec_array.swapaxes(-2, -1)
+        mm_row_col_vec = umt.matrix_multiply(row_vec, col_vec)
+        matmul_row_col_vec = umt.matmul(row_vec, col_vec)
+        assert_array_equal(matmul_row_col_vec, mm_row_col_vec)
+        # single row vector @ single col vector
+        assert_raises(ValueError, umt.matrix_multiply, single_vec, single_vec)
+        matmul_row_col = umt.matmul(single_vec, single_vec)
+        assert_array_equal(matmul_row_col, mm_row_col_vec.squeeze())
+        # row vector array @ matrix
+        mm_row_col_array = umt.matrix_multiply(row_vec_array, col_vec_array)
+        matmul_row_col_array = umt.matmul(row_vec_array, col_vec_array)
+        assert_array_equal(matmul_row_col_array, mm_row_col_array)
+        # Finally, check that things are *not* squeezed if one gives an
+        # output.
+        out = np.zeros_like(mm_row_col_array)
+        out = umt.matrix_multiply(row_vec_array, col_vec_array, out=out)
+        assert_array_equal(out, mm_row_col_array)
+        out[:] = 0
+        out = umt.matmul(row_vec_array, col_vec_array, out=out)
+        assert_array_equal(out, mm_row_col_array)
+        # And check one cannot put missing dimensions back.
+        out = np.zeros_like(mm_row_col_vec)
+        assert_raises(ValueError, umt.matrix_multiply, single_vec, single_vec,
+                      out)
+        # But fine for matmul, since it is just a broadcast.
+        out = umt.matmul(single_vec, single_vec, out)
+        assert_array_equal(out, mm_row_col_vec.squeeze())
+
+    def test_matrix_multiply(self):
+        self.compare_matrix_multiply_results(np.int64)
+        self.compare_matrix_multiply_results(np.double)
+
+    def test_matrix_multiply_umath_empty(self):
+        res = umt.matrix_multiply(np.ones((0, 10)), np.ones((10, 0)))
+        assert_array_equal(res, np.zeros((0, 0)))
+        res = umt.matrix_multiply(np.ones((10, 0)), np.ones((0, 10)))
+        assert_array_equal(res, np.zeros((10, 10)))
+
+    def compare_matrix_multiply_results(self, tp):
+        d1 = np.array(np.random.rand(2, 3, 4), dtype=tp)
+        d2 = np.array(np.random.rand(2, 3, 4), dtype=tp)
+        msg = f"matrix multiply on type {d1.dtype.name}"
+
+        def permute_n(n):
+            if n == 1:
+                return ([0],)
+            ret = ()
+            base = permute_n(n - 1)
+            for perm in base:
+                for i in range(n):
+                    new = perm + [n - 1]
+                    new[n - 1] = new[i]
+                    new[i] = n - 1
+                    ret += (new,)
+            return ret
+
+        def slice_n(n):
+            if n == 0:
+                return ((),)
+            ret = ()
+            base = slice_n(n - 1)
+            for sl in base:
+                ret += (sl + (slice(None),),)
+                ret += (sl + (slice(0, 1),),)
+            return ret
+
+        def broadcastable(s1, s2):
+            return s1 == s2 or 1 in {s1, s2}
+
+        permute_3 = permute_n(3)
+        slice_3 = slice_n(3) + ((slice(None, None, -1),) * 3,)
+
+        ref = True
+        for p1 in permute_3:
+            for p2 in permute_3:
+                for s1 in slice_3:
+                    for s2 in slice_3:
+                        a1 = d1.transpose(p1)[s1]
+                        a2 = d2.transpose(p2)[s2]
+                        ref = ref and a1.base is not None
+                        ref = ref and a2.base is not None
+                        if (a1.shape[-1] == a2.shape[-2] and
+                                broadcastable(a1.shape[0], a2.shape[0])):
+                            assert_array_almost_equal(
+                                umt.matrix_multiply(a1, a2),
+                                np.sum(a2[..., np.newaxis].swapaxes(-3, -1) *
+                                       a1[..., np.newaxis, :], axis=-1),
+                                err_msg=msg + f' {str(a1.shape)} {str(a2.shape)}')
+
+        assert_equal(ref, True, err_msg="reference check")
+
+    def test_euclidean_pdist(self):
+        a = np.arange(12, dtype=float).reshape(4, 3)
+        out = np.empty((a.shape[0] * (a.shape[0] - 1) // 2,), dtype=a.dtype)
+        umt.euclidean_pdist(a, out)
+        b = np.sqrt(np.sum((a[:, None] - a)**2, axis=-1))
+        b = b[~np.tri(a.shape[0], dtype=bool)]
+        assert_almost_equal(out, b)
+        # An output array is required to determine p with signature (n,d)->(p)
+        assert_raises(ValueError, umt.euclidean_pdist, a)
+
+    def test_cumsum(self):
+        a = np.arange(10)
+        result = umt.cumsum(a)
+        assert_array_equal(result, a.cumsum())
+
+    def test_object_logical(self):
+        a = np.array([3, None, True, False, "test", ""], dtype=object)
+        assert_equal(np.logical_or(a, None),
+                        np.array([x or None for x in a], dtype=object))
+        assert_equal(np.logical_or(a, True),
+                        np.array([x or True for x in a], dtype=object))
+        assert_equal(np.logical_or(a, 12),
+                        np.array([x or 12 for x in a], dtype=object))
+        assert_equal(np.logical_or(a, "blah"),
+                        np.array([x or "blah" for x in a], dtype=object))
+
+        assert_equal(np.logical_and(a, None),
+                        np.array([x and None for x in a], dtype=object))
+        assert_equal(np.logical_and(a, True),
+                        np.array([x and True for x in a], dtype=object))
+        assert_equal(np.logical_and(a, 12),
+                        np.array([x and 12 for x in a], dtype=object))
+        assert_equal(np.logical_and(a, "blah"),
+                        np.array([x and "blah" for x in a], dtype=object))
+
+        assert_equal(np.logical_not(a),
+                        np.array([not x for x in a], dtype=object))
+
+        assert_equal(np.logical_or.reduce(a), 3)
+        assert_equal(np.logical_and.reduce(a), None)
+
+    def test_object_comparison(self):
+        class HasComparisons:
+            def __eq__(self, other):
+                return '=='
+
+        arr0d = np.array(HasComparisons())
+        assert_equal(arr0d == arr0d, True)
+        assert_equal(np.equal(arr0d, arr0d), True)  # normal behavior is a cast
+
+        arr1d = np.array([HasComparisons()])
+        assert_equal(arr1d == arr1d, np.array([True]))
+        # normal behavior is a cast
+        assert_equal(np.equal(arr1d, arr1d), np.array([True]))
+        assert_equal(np.equal(arr1d, arr1d, dtype=object), np.array(['==']))
+
+    def test_object_array_reduction(self):
+        # Reductions on object arrays
+        a = np.array(['a', 'b', 'c'], dtype=object)
+        assert_equal(np.sum(a), 'abc')
+        assert_equal(np.max(a), 'c')
+        assert_equal(np.min(a), 'a')
+        a = np.array([True, False, True], dtype=object)
+        assert_equal(np.sum(a), 2)
+        assert_equal(np.prod(a), 0)
+        assert_equal(np.any(a), True)
+        assert_equal(np.all(a), False)
+        assert_equal(np.max(a), True)
+        assert_equal(np.min(a), False)
+        assert_equal(np.array([[1]], dtype=object).sum(), 1)
+        assert_equal(np.array([[[1, 2]]], dtype=object).sum((0, 1)), [1, 2])
+        assert_equal(np.array([1], dtype=object).sum(initial=1), 2)
+        assert_equal(np.array([[1], [2, 3]], dtype=object)
+                     .sum(initial=[0], where=[False, True]), [0, 2, 3])
+
+    def test_object_array_accumulate_inplace(self):
+        # Checks that in-place accumulates work, see also gh-7402
+        arr = np.ones(4, dtype=object)
+        arr[:] = [[1] for i in range(4)]
+        # Twice reproduced also for tuples:
+        np.add.accumulate(arr, out=arr)
+        np.add.accumulate(arr, out=arr)
+        assert_array_equal(arr,
+                           np.array([[1] * i for i in [1, 3, 6, 10]], dtype=object),
+                          )
+
+        # And the same if the axis argument is used
+        arr = np.ones((2, 4), dtype=object)
+        arr[0, :] = [[2] for i in range(4)]
+        np.add.accumulate(arr, out=arr, axis=-1)
+        np.add.accumulate(arr, out=arr, axis=-1)
+        assert_array_equal(arr[0, :],
+                           np.array([[2] * i for i in [1, 3, 6, 10]], dtype=object),
+                          )
+
+    def test_object_array_accumulate_failure(self):
+        # Typical accumulation on object works as expected:
+        res = np.add.accumulate(np.array([1, 0, 2], dtype=object))
+        assert_array_equal(res, np.array([1, 1, 3], dtype=object))
+        # But errors are propagated from the inner-loop if they occur:
+        with pytest.raises(TypeError):
+            np.add.accumulate([1, None, 2])
+
+    def test_object_array_reduceat_inplace(self):
+        # Checks that in-place reduceats work, see also gh-7465
+        arr = np.empty(4, dtype=object)
+        arr[:] = [[1] for i in range(4)]
+        out = np.empty(4, dtype=object)
+        out[:] = [[1] for i in range(4)]
+        np.add.reduceat(arr, np.arange(4), out=arr)
+        np.add.reduceat(arr, np.arange(4), out=arr)
+        assert_array_equal(arr, out)
+
+        # And the same if the axis argument is used
+        arr = np.ones((2, 4), dtype=object)
+        arr[0, :] = [[2] for i in range(4)]
+        out = np.ones((2, 4), dtype=object)
+        out[0, :] = [[2] for i in range(4)]
+        np.add.reduceat(arr, np.arange(4), out=arr, axis=-1)
+        np.add.reduceat(arr, np.arange(4), out=arr, axis=-1)
+        assert_array_equal(arr, out)
+
+    def test_object_array_reduceat_failure(self):
+        # Reduceat works as expected when no invalid operation occurs (None is
+        # not involved in an operation here)
+        res = np.add.reduceat(np.array([1, None, 2], dtype=object), [1, 2])
+        assert_array_equal(res, np.array([None, 2], dtype=object))
+        # But errors when None would be involved in an operation:
+        with pytest.raises(TypeError):
+            np.add.reduceat([1, None, 2], [0, 2])
+
+    def test_zerosize_reduction(self):
+        # Test with default dtype and object dtype
+        for a in [[], np.array([], dtype=object)]:
+            assert_equal(np.sum(a), 0)
+            assert_equal(np.prod(a), 1)
+            assert_equal(np.any(a), False)
+            assert_equal(np.all(a), True)
+            assert_raises(ValueError, np.max, a)
+            assert_raises(ValueError, np.min, a)
+
+    def test_axis_out_of_bounds(self):
+        a = np.array([False, False])
+        assert_raises(AxisError, a.all, axis=1)
+        a = np.array([False, False])
+        assert_raises(AxisError, a.all, axis=-2)
+
+        a = np.array([False, False])
+        assert_raises(AxisError, a.any, axis=1)
+        a = np.array([False, False])
+        assert_raises(AxisError, a.any, axis=-2)
+
+    def test_scalar_reduction(self):
+        # The functions 'sum', 'prod', etc allow specifying axis=0
+        # even for scalars
+        assert_equal(np.sum(3, axis=0), 3)
+        assert_equal(np.prod(3.5, axis=0), 3.5)
+        assert_equal(np.any(True, axis=0), True)
+        assert_equal(np.all(False, axis=0), False)
+        assert_equal(np.max(3, axis=0), 3)
+        assert_equal(np.min(2.5, axis=0), 2.5)
+
+        # Check scalar behaviour for ufuncs without an identity
+        assert_equal(np.power.reduce(3), 3)
+
+        # Make sure that scalars are coming out from this operation
+        assert_(type(np.prod(np.float32(2.5), axis=0)) is np.float32)
+        assert_(type(np.sum(np.float32(2.5), axis=0)) is np.float32)
+        assert_(type(np.max(np.float32(2.5), axis=0)) is np.float32)
+        assert_(type(np.min(np.float32(2.5), axis=0)) is np.float32)
+
+        # check if scalars/0-d arrays get cast
+        assert_(type(np.any(0, axis=0)) is np.bool)
+
+        # assert that 0-d arrays get wrapped
+        class MyArray(np.ndarray):
+            pass
+        a = np.array(1).view(MyArray)
+        assert_(type(np.any(a)) is MyArray)
+
+    def test_casting_out_param(self):
+        # Test that it's possible to do casts on output
+        a = np.ones((200, 100), np.int64)
+        b = np.ones((200, 100), np.int64)
+        c = np.ones((200, 100), np.float64)
+        np.add(a, b, out=c)
+        assert_equal(c, 2)
+
+        a = np.zeros(65536)
+        b = np.zeros(65536, dtype=np.float32)
+        np.subtract(a, 0, out=b)
+        assert_equal(b, 0)
+
+    def test_where_param(self):
+        # Test that the where= ufunc parameter works with regular arrays
+        a = np.arange(7)
+        b = np.ones(7)
+        c = np.zeros(7)
+        np.add(a, b, out=c, where=(a % 2 == 1))
+        assert_equal(c, [0, 2, 0, 4, 0, 6, 0])
+
+        a = np.arange(4).reshape(2, 2) + 2
+        np.power(a, [2, 3], out=a, where=[[0, 1], [1, 0]])
+        assert_equal(a, [[2, 27], [16, 5]])
+        # Broadcasting the where= parameter
+        np.subtract(a, 2, out=a, where=[True, False])
+        assert_equal(a, [[0, 27], [14, 5]])
+
+    def test_where_param_buffer_output(self):
+        # With casting on output
+        a = np.ones(10, np.int64)
+        b = np.ones(10, np.int64)
+        c = 1.5 * np.ones(10, np.float64)
+        np.add(a, b, out=c, where=[1, 0, 0, 1, 0, 0, 1, 1, 1, 0])
+        assert_equal(c, [2, 1.5, 1.5, 2, 1.5, 1.5, 2, 2, 2, 1.5])
+
+    def test_where_param_alloc(self):
+        # With casting and allocated output
+        a = np.array([1], dtype=np.int64)
+        m = np.array([True], dtype=bool)
+        assert_equal(np.sqrt(a, where=m, out=None), [1])
+
+        # No casting and allocated output
+        a = np.array([1], dtype=np.float64)
+        m = np.array([True], dtype=bool)
+        assert_equal(np.sqrt(a, where=m, out=None), [1])
+
+    def test_where_with_broadcasting(self):
+        # See gh-17198
+        a = np.random.random((5000, 4))
+        b = np.random.random((5000, 1))
+
+        where = a > 0.3
+        out = np.full_like(a, 0)
+        np.less(a, b, where=where, out=out)
+        b_where = np.broadcast_to(b, a.shape)[where]
+        assert_array_equal((a[where] < b_where), out[where].astype(bool))
+        assert not out[~where].any()  # outside mask, out remains all 0
+
+    def test_where_warns(self):
+        a = np.arange(7)
+        mask = a % 2 == 0
+        with pytest.warns(UserWarning, match="'where' used without 'out'"):
+            result1 = np.add(a, a, where=mask)
+        # Does not warn
+        result2 = np.add(a, a, where=mask, out=None)
+        # Sanity check
+        assert np.all(result1[::2] == [0, 4, 8, 12])
+        assert np.all(result2[::2] == [0, 4, 8, 12])
+        # Also no warning for where=True
+        result3 = np.add(a, a, where=True)
+        # Sanity check
+        assert_array_equal(result3, a + a)
+
+    @staticmethod
+    def identityless_reduce_arrs():
+        yield np.empty((2, 3, 4), order='C')
+        yield np.empty((2, 3, 4), order='F')
+        # Mixed order (reduce order differs outer)
+        yield np.empty((2, 4, 3), order='C').swapaxes(1, 2)
+        # Reversed order
+        yield np.empty((2, 3, 4), order='C')[::-1, ::-1, ::-1]
+        # Not contiguous
+        yield np.empty((3, 5, 4), order='C').swapaxes(1, 2)[1:, 1:, 1:]
+        # Not contiguous and not aligned
+        a = np.empty((3 * 4 * 5 * 8 + 1,), dtype='i1')
+        a = a[1:].view(dtype='f8')
+        a.shape = (3, 4, 5)
+        a = a[1:, 1:, 1:]
+        yield a
+
+    @pytest.mark.parametrize("arrs", identityless_reduce_arrs())
+    @pytest.mark.parametrize("pos", [(1, 0, 0), (0, 1, 0), (0, 0, 1)])
+    def test_identityless_reduction(self, arrs, pos):
+        # np.minimum.reduce is an identityless reduction
+        a = arrs.copy()
+        a[...] = 1
+        a[pos] = 0
+
+        for axis in [None, (0, 1), (0, 2), (1, 2), 0, 1, 2, ()]:
+            if axis is None:
+                axes = np.array([], dtype=np.intp)
+            else:
+                axes = np.delete(np.arange(a.ndim), axis)
+
+            expected_pos = tuple(np.array(pos)[axes])
+            expected = np.ones(np.array(a.shape)[axes])
+            expected[expected_pos] = 0
+
+            res = np.minimum.reduce(a, axis=axis)
+            assert_equal(res, expected, strict=True)
+
+            res = np.full_like(res, np.nan)
+            np.minimum.reduce(a, axis=axis, out=res)
+            assert_equal(res, expected, strict=True)
+
+    @requires_memory(6 * 1024**3)
+    @pytest.mark.skipif(sys.maxsize < 2**32,
+            reason="test array too large for 32bit platform")
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_identityless_reduction_huge_array(self):
+        # Regression test for gh-20921 (copying identity incorrectly failed)
+        arr = np.zeros((2, 2**31), 'uint8')
+        arr[:, 0] = [1, 3]
+        arr[:, -1] = [4, 1]
+        res = np.maximum.reduce(arr, axis=0)
+        del arr
+        assert res[0] == 3
+        assert res[-1] == 4
+
+    def test_reduce_identity_depends_on_loop(self):
+        """
+        The type of the result should always depend on the selected loop, not
+        necessarily the output (only relevant for object arrays).
+        """
+        # For an object loop, the default value 0 with type int is used:
+        assert type(np.add.reduce([], dtype=object)) is int
+        out = np.array(None, dtype=object)
+        # When the loop is float64 but `out` is object this does not happen,
+        # the result is float64 cast to object (which gives Python `float`).
+        np.add.reduce([], out=out, dtype=np.float64)
+        assert type(out[()]) is float
+
+    def test_initial_reduction(self):
+        # np.minimum.reduce is an identityless reduction
+
+        # For cases like np.maximum(np.abs(...), initial=0)
+        # More generally, a supremum over non-negative numbers.
+        assert_equal(np.maximum.reduce([], initial=0), 0)
+
+        # For cases like reduction of an empty array over the reals.
+        assert_equal(np.minimum.reduce([], initial=np.inf), np.inf)
+        assert_equal(np.maximum.reduce([], initial=-np.inf), -np.inf)
+
+        # Random tests
+        assert_equal(np.minimum.reduce([5], initial=4), 4)
+        assert_equal(np.maximum.reduce([4], initial=5), 5)
+        assert_equal(np.maximum.reduce([5], initial=4), 5)
+        assert_equal(np.minimum.reduce([4], initial=5), 4)
+
+        # Check initial=None raises ValueError for both types of ufunc reductions
+        assert_raises(ValueError, np.minimum.reduce, [], initial=None)
+        assert_raises(ValueError, np.add.reduce, [], initial=None)
+        # Also in the somewhat special object case:
+        with pytest.raises(ValueError):
+            np.add.reduce([], initial=None, dtype=object)
+
+        # Check that np._NoValue gives default behavior.
+        assert_equal(np.add.reduce([], initial=np._NoValue), 0)
+
+        # Check that initial kwarg behaves as intended for dtype=object
+        a = np.array([10], dtype=object)
+        res = np.add.reduce(a, initial=5)
+        assert_equal(res, 15)
+
+    def test_empty_reduction_and_identity(self):
+        arr = np.zeros((0, 5))
+        # OK, since the reduction itself is *not* empty, the result is
+        assert np.true_divide.reduce(arr, axis=1).shape == (0,)
+        # Not OK, the reduction itself is empty and we have no identity
+        with pytest.raises(ValueError):
+            np.true_divide.reduce(arr, axis=0)
+
+        # Test that an empty reduction fails also if the result is empty
+        arr = np.zeros((0, 0, 5))
+        with pytest.raises(ValueError):
+            np.true_divide.reduce(arr, axis=1)
+
+        # Division reduction makes sense with `initial=1` (empty or not):
+        res = np.true_divide.reduce(arr, axis=1, initial=1)
+        assert_array_equal(res, np.ones((0, 5)))
+
+    @pytest.mark.parametrize('axis', (0, 1, None))
+    @pytest.mark.parametrize('where', (np.array([False, True, True]),
+                                       np.array([[True], [False], [True]]),
+                                       np.array([[True, False, False],
+                                                 [False, True, False],
+                                                 [False, True, True]])))
+    def test_reduction_with_where(self, axis, where):
+        a = np.arange(9.).reshape(3, 3)
+        a_copy = a.copy()
+        a_check = np.zeros_like(a)
+        np.positive(a, out=a_check, where=where)
+
+        res = np.add.reduce(a, axis=axis, where=where)
+        check = a_check.sum(axis)
+        assert_equal(res, check)
+        # Check we do not overwrite elements of a internally.
+        assert_array_equal(a, a_copy)
+
+    @pytest.mark.parametrize(('axis', 'where'),
+                             ((0, np.array([True, False, True])),
+                              (1, [True, True, False]),
+                              (None, True)))
+    @pytest.mark.parametrize('initial', (-np.inf, 5.))
+    def test_reduction_with_where_and_initial(self, axis, where, initial):
+        a = np.arange(9.).reshape(3, 3)
+        a_copy = a.copy()
+        a_check = np.full(a.shape, -np.inf)
+        np.positive(a, out=a_check, where=where)
+
+        res = np.maximum.reduce(a, axis=axis, where=where, initial=initial)
+        check = a_check.max(axis, initial=initial)
+        assert_equal(res, check)
+
+    def test_reduction_where_initial_needed(self):
+        a = np.arange(9.).reshape(3, 3)
+        m = [False, True, False]
+        assert_raises(ValueError, np.maximum.reduce, a, where=m)
+
+    def test_identityless_reduction_nonreorderable(self):
+        a = np.array([[8.0, 2.0, 2.0], [1.0, 0.5, 0.25]])
+
+        res = np.divide.reduce(a, axis=0)
+        assert_equal(res, [8.0, 4.0, 8.0])
+
+        res = np.divide.reduce(a, axis=1)
+        assert_equal(res, [2.0, 8.0])
+
+        res = np.divide.reduce(a, axis=())
+        assert_equal(res, a)
+
+        assert_raises(ValueError, np.divide.reduce, a, axis=(0, 1))
+
+    def test_reduce_zero_axis(self):
+        # If we have an n x m array and do a reduction with axis=1, then we are
+        # doing n reductions, and each reduction takes an m-element array. For
+        # a reduction operation without an identity, then:
+        #   n > 0, m > 0: fine
+        #   n = 0, m > 0: fine, doing 0 reductions of m-element arrays
+        #   n > 0, m = 0: can't reduce a 0-element array, ValueError
+        #   n = 0, m = 0: can't reduce a 0-element array, ValueError (for
+        #     consistency with the above case)
+        # This test doesn't actually look at return values, it just checks to
+        # make sure that error we get an error in exactly those cases where we
+        # expect one, and assumes the calculations themselves are done
+        # correctly.
+
+        def ok(f, *args, **kwargs):
+            f(*args, **kwargs)
+
+        def err(f, *args, **kwargs):
+            assert_raises(ValueError, f, *args, **kwargs)
+
+        def t(expect, func, n, m):
+            expect(func, np.zeros((n, m)), axis=1)
+            expect(func, np.zeros((m, n)), axis=0)
+            expect(func, np.zeros((n // 2, n // 2, m)), axis=2)
+            expect(func, np.zeros((n // 2, m, n // 2)), axis=1)
+            expect(func, np.zeros((n, m // 2, m // 2)), axis=(1, 2))
+            expect(func, np.zeros((m // 2, n, m // 2)), axis=(0, 2))
+            expect(func, np.zeros((m // 3, m // 3, m // 3,
+                                  n // 2, n // 2)),
+                                 axis=(0, 1, 2))
+            # Check what happens if the inner (resp. outer) dimensions are a
+            # mix of zero and non-zero:
+            expect(func, np.zeros((10, m, n)), axis=(0, 1))
+            expect(func, np.zeros((10, n, m)), axis=(0, 2))
+            expect(func, np.zeros((m, 10, n)), axis=0)
+            expect(func, np.zeros((10, m, n)), axis=1)
+            expect(func, np.zeros((10, n, m)), axis=2)
+
+        # np.maximum is just an arbitrary ufunc with no reduction identity
+        assert_equal(np.maximum.identity, None)
+        t(ok, np.maximum.reduce, 30, 30)
+        t(ok, np.maximum.reduce, 0, 30)
+        t(err, np.maximum.reduce, 30, 0)
+        t(err, np.maximum.reduce, 0, 0)
+        err(np.maximum.reduce, [])
+        np.maximum.reduce(np.zeros((0, 0)), axis=())
+
+        # all of the combinations are fine for a reduction that has an
+        # identity
+        t(ok, np.add.reduce, 30, 30)
+        t(ok, np.add.reduce, 0, 30)
+        t(ok, np.add.reduce, 30, 0)
+        t(ok, np.add.reduce, 0, 0)
+        np.add.reduce([])
+        np.add.reduce(np.zeros((0, 0)), axis=())
+
+        # OTOH, accumulate always makes sense for any combination of n and m,
+        # because it maps an m-element array to an m-element array. These
+        # tests are simpler because accumulate doesn't accept multiple axes.
+        for uf in (np.maximum, np.add):
+            uf.accumulate(np.zeros((30, 0)), axis=0)
+            uf.accumulate(np.zeros((0, 30)), axis=0)
+            uf.accumulate(np.zeros((30, 30)), axis=0)
+            uf.accumulate(np.zeros((0, 0)), axis=0)
+
+    def test_safe_casting(self):
+        # In old versions of numpy, in-place operations used the 'unsafe'
+        # casting rules. In versions >= 1.10, 'same_kind' is the
+        # default and an exception is raised instead of a warning.
+        # when 'same_kind' is not satisfied.
+        a = np.array([1, 2, 3], dtype=int)
+        # Non-in-place addition is fine
+        assert_array_equal(assert_no_warnings(np.add, a, 1.1),
+                           [2.1, 3.1, 4.1])
+        assert_raises(TypeError, np.add, a, 1.1, out=a)
+
+        def add_inplace(a, b):
+            a += b
+
+        assert_raises(TypeError, add_inplace, a, 1.1)
+        # Make sure that explicitly overriding the exception is allowed:
+        assert_no_warnings(np.add, a, 1.1, out=a, casting="unsafe")
+        assert_array_equal(a, [2, 3, 4])
+
+    def test_ufunc_custom_out(self):
+        # Test ufunc with built in input types and custom output type
+
+        a = np.array([0, 1, 2], dtype='i8')
+        b = np.array([0, 1, 2], dtype='i8')
+        c = np.empty(3, dtype=_rational_tests.rational)
+
+        # Output must be specified so numpy knows what
+        # ufunc signature to look for
+        result = _rational_tests.test_add(a, b, c)
+        target = np.array([0, 2, 4], dtype=_rational_tests.rational)
+        assert_equal(result, target)
+
+        # The new resolution means that we can (usually) find custom loops
+        # as long as they match exactly:
+        result = _rational_tests.test_add(a, b)
+        assert_equal(result, target)
+
+        # This works even more generally, so long the default common-dtype
+        # promoter works out:
+        result = _rational_tests.test_add(a, b.astype(np.uint16), out=c)
+        assert_equal(result, target)
+
+        # This scalar path used to go into legacy promotion, but doesn't now:
+        result = _rational_tests.test_add(a, np.uint16(2))
+        target = np.array([2, 3, 4], dtype=_rational_tests.rational)
+        assert_equal(result, target)
+
+    def test_operand_flags(self):
+        a = np.arange(16, dtype=int).reshape(4, 4)
+        b = np.arange(9, dtype=int).reshape(3, 3)
+        opflag_tests.inplace_add(a[:-1, :-1], b)
+        assert_equal(a, np.array([[0, 2, 4, 3], [7, 9, 11, 7],
+            [14, 16, 18, 11], [12, 13, 14, 15]]))
+
+        a = np.array(0)
+        opflag_tests.inplace_add(a, 3)
+        assert_equal(a, 3)
+        opflag_tests.inplace_add(a, [3, 4])
+        assert_equal(a, 10)
+
+    def test_struct_ufunc(self):
+        import numpy._core._struct_ufunc_tests as struct_ufunc
+
+        a = np.array([(1, 2, 3)], dtype='u8,u8,u8')
+        b = np.array([(1, 2, 3)], dtype='u8,u8,u8')
+
+        result = struct_ufunc.add_triplet(a, b)
+        assert_equal(result, np.array([(2, 4, 6)], dtype='u8,u8,u8'))
+        assert_raises(RuntimeError, struct_ufunc.register_fail)
+
+    def test_custom_ufunc(self):
+        a = np.array(
+            [_rational_tests.rational(1, 2),
+             _rational_tests.rational(1, 3),
+             _rational_tests.rational(1, 4)],
+            dtype=_rational_tests.rational)
+        b = np.array(
+            [_rational_tests.rational(1, 2),
+             _rational_tests.rational(1, 3),
+             _rational_tests.rational(1, 4)],
+            dtype=_rational_tests.rational)
+
+        result = _rational_tests.test_add_rationals(a, b)
+        expected = np.array(
+            [_rational_tests.rational(1),
+             _rational_tests.rational(2, 3),
+             _rational_tests.rational(1, 2)],
+            dtype=_rational_tests.rational)
+        assert_equal(result, expected)
+
+    def test_custom_ufunc_forced_sig(self):
+        # gh-9351 - looking for a non-first userloop would previously hang
+        with assert_raises(TypeError):
+            np.multiply(_rational_tests.rational(1), 1,
+                        signature=(_rational_tests.rational, int, None))
+
+    def test_custom_array_like(self):
+
+        class MyThing:
+            __array_priority__ = 1000
+
+            rmul_count = 0
+            getitem_count = 0
+
+            def __init__(self, shape):
+                self.shape = shape
+
+            def __len__(self):
+                return self.shape[0]
+
+            def __getitem__(self, i):
+                MyThing.getitem_count += 1
+                if not isinstance(i, tuple):
+                    i = (i,)
+                if len(i) > self.ndim:
+                    raise IndexError("boo")
+
+                return MyThing(self.shape[len(i):])
+
+            def __rmul__(self, other):
+                MyThing.rmul_count += 1
+                return self
+
+        np.float64(5) * MyThing((3, 3))
+        assert_(MyThing.rmul_count == 1, MyThing.rmul_count)
+        assert_(MyThing.getitem_count <= 2, MyThing.getitem_count)
+
+    def test_array_wrap_array_priority(self):
+        class ArrayPriorityBase(np.ndarray):
+            @classmethod
+            def __array_wrap__(cls, array, context=None, return_scalar=False):
+                return cls
+
+        class ArrayPriorityMinus0(ArrayPriorityBase):
+            __array_priority__ = 0
+
+        class ArrayPriorityMinus1000(ArrayPriorityBase):
+            __array_priority__ = -1000
+
+        class ArrayPriorityMinus1000b(ArrayPriorityBase):
+            __array_priority__ = -1000
+
+        class ArrayPriorityMinus2000(ArrayPriorityBase):
+            __array_priority__ = -2000
+
+        x = np.ones(2).view(ArrayPriorityMinus1000)
+        xb = np.ones(2).view(ArrayPriorityMinus1000b)
+        y = np.ones(2).view(ArrayPriorityMinus2000)
+
+        assert np.add(x, y) is ArrayPriorityMinus1000
+        assert np.add(y, x) is ArrayPriorityMinus1000
+        assert np.add(x, xb) is ArrayPriorityMinus1000
+        assert np.add(xb, x) is ArrayPriorityMinus1000b
+        y_minus0 = np.zeros(2).view(ArrayPriorityMinus0)
+        assert np.add(np.zeros(2), y_minus0) is ArrayPriorityMinus0
+        assert type(np.add(xb, x, np.zeros(2))) is np.ndarray
+
+    @pytest.mark.parametrize("a", (
+                             np.arange(10, dtype=int),
+                             np.arange(10, dtype=_rational_tests.rational),
+                             ))
+    def test_ufunc_at_basic(self, a):
+
+        aa = a.copy()
+        np.add.at(aa, [2, 5, 2], 1)
+        assert_equal(aa, [0, 1, 4, 3, 4, 6, 6, 7, 8, 9])
+
+        with pytest.raises(ValueError):
+            # missing second operand
+            np.add.at(aa, [2, 5, 3])
+
+        aa = a.copy()
+        np.negative.at(aa, [2, 5, 3])
+        assert_equal(aa, [0, 1, -2, -3, 4, -5, 6, 7, 8, 9])
+
+        aa = a.copy()
+        b = np.array([100, 100, 100])
+        np.add.at(aa, [2, 5, 2], b)
+        assert_equal(aa, [0, 1, 202, 3, 4, 105, 6, 7, 8, 9])
+
+        with pytest.raises(ValueError):
+            # extraneous second operand
+            np.negative.at(a, [2, 5, 3], [1, 2, 3])
+
+        with pytest.raises(ValueError):
+            # second operand cannot be converted to an array
+            np.add.at(a, [2, 5, 3], [[1, 2], 1])
+
+    # ufuncs with indexed loops for performance in ufunc.at
+    indexed_ufuncs = [np.add, np.subtract, np.multiply, np.floor_divide,
+                      np.maximum, np.minimum, np.fmax, np.fmin]
+
+    @pytest.mark.parametrize(
+                "typecode", np.typecodes['AllInteger'] + np.typecodes['Float'])
+    @pytest.mark.parametrize("ufunc", indexed_ufuncs)
+    def test_ufunc_at_inner_loops(self, typecode, ufunc):
+        if ufunc is np.divide and typecode in np.typecodes['AllInteger']:
+            # Avoid divide-by-zero and inf for integer divide
+            a = np.ones(100, dtype=typecode)
+            indx = np.random.randint(100, size=30, dtype=np.intp)
+            vals = np.arange(1, 31, dtype=typecode)
+        else:
+            a = np.ones(1000, dtype=typecode)
+            indx = np.random.randint(1000, size=3000, dtype=np.intp)
+            vals = np.arange(3000, dtype=typecode)
+        atag = a.copy()
+        # Do the calculation twice and compare the answers
+        with warnings.catch_warnings(record=True) as w_at:
+            warnings.simplefilter('always')
+            ufunc.at(a, indx, vals)
+        with warnings.catch_warnings(record=True) as w_loop:
+            warnings.simplefilter('always')
+            for i, v in zip(indx, vals):
+                # Make sure all the work happens inside the ufunc
+                # in order to duplicate error/warning handling
+                ufunc(atag[i], v, out=atag[i:i + 1], casting="unsafe")
+        assert_equal(atag, a)
+        # If w_loop warned, make sure w_at warned as well
+        if len(w_loop) > 0:
+            #
+            assert len(w_at) > 0
+            assert w_at[0].category == w_loop[0].category
+            assert str(w_at[0].message)[:10] == str(w_loop[0].message)[:10]
+
+    @pytest.mark.parametrize("typecode", np.typecodes['Complex'])
+    @pytest.mark.parametrize("ufunc", [np.add, np.subtract, np.multiply])
+    def test_ufunc_at_inner_loops_complex(self, typecode, ufunc):
+        a = np.ones(10, dtype=typecode)
+        indx = np.concatenate([np.ones(6, dtype=np.intp),
+                               np.full(18, 4, dtype=np.intp)])
+        value = a.dtype.type(1j)
+        ufunc.at(a, indx, value)
+        expected = np.ones_like(a)
+        if ufunc is np.multiply:
+            expected[1] = expected[4] = -1
+        else:
+            expected[1] += 6 * (value if ufunc is np.add else -value)
+            expected[4] += 18 * (value if ufunc is np.add else -value)
+
+        assert_array_equal(a, expected)
+
+    def test_ufunc_at_ellipsis(self):
+        # Make sure the indexed loop check does not choke on iters
+        # with subspaces
+        arr = np.zeros(5)
+        np.add.at(arr, slice(None), np.ones(5))
+        assert_array_equal(arr, np.ones(5))
+
+    def test_ufunc_at_negative(self):
+        arr = np.ones(5, dtype=np.int32)
+        indx = np.arange(5)
+        umt.indexed_negative.at(arr, indx)
+        # If it is [-1, -1, -1, -100, 0] then the regular strided loop was used
+        assert np.all(arr == [-1, -1, -1, -200, -1])
+
+    def test_ufunc_at_large(self):
+        # issue gh-23457
+        indices = np.zeros(8195, dtype=np.int16)
+        b = np.zeros(8195, dtype=float)
+        b[0] = 10
+        b[1] = 5
+        b[8192:] = 100
+        a = np.zeros(1, dtype=float)
+        np.add.at(a, indices, b)
+        assert a[0] == b.sum()
+
+    def test_cast_index_fastpath(self):
+        arr = np.zeros(10)
+        values = np.ones(100000)
+        # index must be cast, which may be buffered in chunks:
+        index = np.zeros(len(values), dtype=np.uint8)
+        np.add.at(arr, index, values)
+        assert arr[0] == len(values)
+
+    @pytest.mark.parametrize("value", [
+        np.ones(1), np.ones(()), np.float64(1.), 1.])
+    def test_ufunc_at_scalar_value_fastpath(self, value):
+        arr = np.zeros(1000)
+        # index must be cast, which may be buffered in chunks:
+        index = np.repeat(np.arange(1000), 2)
+        np.add.at(arr, index, value)
+        assert_array_equal(arr, np.full_like(arr, 2 * value))
+
+    def test_ufunc_at_multiD(self):
+        a = np.arange(9).reshape(3, 3)
+        b = np.array([[100, 100, 100], [200, 200, 200], [300, 300, 300]])
+        np.add.at(a, (slice(None), [1, 2, 1]), b)
+        assert_equal(a, [[0, 201, 102], [3, 404, 205], [6, 607, 308]])
+
+        a = np.arange(27).reshape(3, 3, 3)
+        b = np.array([100, 200, 300])
+        np.add.at(a, (slice(None), slice(None), [1, 2, 1]), b)
+        assert_equal(a,
+            [[[0, 401, 202],
+              [3, 404, 205],
+              [6, 407, 208]],
+
+             [[9, 410, 211],
+              [12, 413, 214],
+              [15, 416, 217]],
+
+             [[18, 419, 220],
+              [21, 422, 223],
+              [24, 425, 226]]])
+
+        a = np.arange(9).reshape(3, 3)
+        b = np.array([[100, 100, 100], [200, 200, 200], [300, 300, 300]])
+        np.add.at(a, ([1, 2, 1], slice(None)), b)
+        assert_equal(a, [[0, 1, 2], [403, 404, 405], [206, 207, 208]])
+
+        a = np.arange(27).reshape(3, 3, 3)
+        b = np.array([100, 200, 300])
+        np.add.at(a, (slice(None), [1, 2, 1], slice(None)), b)
+        assert_equal(a,
+            [[[0,  1,  2],
+              [203, 404, 605],
+              [106, 207, 308]],
+
+             [[9,  10, 11],
+              [212, 413, 614],
+              [115, 216, 317]],
+
+             [[18, 19, 20],
+              [221, 422, 623],
+              [124, 225, 326]]])
+
+        a = np.arange(9).reshape(3, 3)
+        b = np.array([100, 200, 300])
+        np.add.at(a, (0, [1, 2, 1]), b)
+        assert_equal(a, [[0, 401, 202], [3, 4, 5], [6, 7, 8]])
+
+        a = np.arange(27).reshape(3, 3, 3)
+        b = np.array([100, 200, 300])
+        np.add.at(a, ([1, 2, 1], 0, slice(None)), b)
+        assert_equal(a,
+            [[[0,  1,  2],
+              [3,  4,  5],
+              [6,  7,  8]],
+
+             [[209, 410, 611],
+              [12,  13, 14],
+              [15,  16, 17]],
+
+             [[118, 219, 320],
+              [21,  22, 23],
+              [24,  25, 26]]])
+
+        a = np.arange(27).reshape(3, 3, 3)
+        b = np.array([100, 200, 300])
+        np.add.at(a, (slice(None), slice(None), slice(None)), b)
+        assert_equal(a,
+            [[[100, 201, 302],
+              [103, 204, 305],
+              [106, 207, 308]],
+
+             [[109, 210, 311],
+              [112, 213, 314],
+              [115, 216, 317]],
+
+             [[118, 219, 320],
+              [121, 222, 323],
+              [124, 225, 326]]])
+
+    def test_ufunc_at_0D(self):
+        a = np.array(0)
+        np.add.at(a, (), 1)
+        assert_equal(a, 1)
+
+        assert_raises(IndexError, np.add.at, a, 0, 1)
+        assert_raises(IndexError, np.add.at, a, [], 1)
+
+    def test_ufunc_at_dtypes(self):
+        # Test mixed dtypes
+        a = np.arange(10)
+        np.power.at(a, [1, 2, 3, 2], 3.5)
+        assert_equal(a, np.array([0, 1, 4414, 46, 4, 5, 6, 7, 8, 9]))
+
+    def test_ufunc_at_boolean(self):
+        # Test boolean indexing and boolean ufuncs
+        a = np.arange(10)
+        index = a % 2 == 0
+        np.equal.at(a, index, [0, 2, 4, 6, 8])
+        assert_equal(a, [1, 1, 1, 3, 1, 5, 1, 7, 1, 9])
+
+        # Test unary operator
+        a = np.arange(10, dtype='u4')
+        np.invert.at(a, [2, 5, 2])
+        assert_equal(a, [0, 1, 2, 3, 4, 5 ^ 0xffffffff, 6, 7, 8, 9])
+
+    def test_ufunc_at_advanced(self):
+        # Test empty subspace
+        orig = np.arange(4)
+        a = orig[:, None][:, 0:0]
+        np.add.at(a, [0, 1], 3)
+        assert_array_equal(orig, np.arange(4))
+
+        # Test with swapped byte order
+        index = np.array([1, 2, 1], np.dtype('i').newbyteorder())
+        values = np.array([1, 2, 3, 4], np.dtype('f').newbyteorder())
+        np.add.at(values, index, 3)
+        assert_array_equal(values, [1, 8, 6, 4])
+
+        # Test exception thrown
+        values = np.array(['a', 1], dtype=object)
+        assert_raises(TypeError, np.add.at, values, [0, 1], 1)
+        assert_array_equal(values, np.array(['a', 1], dtype=object))
+
+        # Test multiple output ufuncs raise error, gh-5665
+        assert_raises(ValueError, np.modf.at, np.arange(10), [1])
+
+        # Test maximum
+        a = np.array([1, 2, 3])
+        np.maximum.at(a, [0], 0)
+        assert_equal(a, np.array([1, 2, 3]))
+
+    @pytest.mark.parametrize("dtype",
+            np.typecodes['AllInteger'] + np.typecodes['Float'])
+    @pytest.mark.parametrize("ufunc",
+            [np.add, np.subtract, np.divide, np.minimum, np.maximum])
+    def test_at_negative_indexes(self, dtype, ufunc):
+        a = np.arange(0, 10).astype(dtype)
+        indxs = np.array([-1, 1, -1, 2]).astype(np.intp)
+        vals = np.array([1, 5, 2, 10], dtype=a.dtype)
+
+        expected = a.copy()
+        for i, v in zip(indxs, vals):
+            expected[i] = ufunc(expected[i], v)
+
+        ufunc.at(a, indxs, vals)
+        assert_array_equal(a, expected)
+        assert np.all(indxs == [-1, 1, -1, 2])
+
+    def test_at_not_none_signature(self):
+        # Test ufuncs with non-trivial signature raise a TypeError
+        a = np.ones((2, 2, 2))
+        b = np.ones((1, 2, 2))
+        assert_raises(TypeError, np.matmul.at, a, [0], b)
+
+        a = np.array([[[1, 2], [3, 4]]])
+        assert_raises(TypeError, np.linalg._umath_linalg.det.at, a, [0])
+
+    def test_at_no_loop_for_op(self):
+        # str dtype does not have a ufunc loop for np.add
+        arr = np.ones(10, dtype=str)
+        with pytest.raises(np._core._exceptions._UFuncNoLoopError):
+            np.add.at(arr, [0, 1], [0, 1])
+
+    def test_at_output_casting(self):
+        arr = np.array([-1])
+        np.equal.at(arr, [0], [0])
+        assert arr[0] == 0
+
+    def test_at_broadcast_failure(self):
+        arr = np.arange(5)
+        with pytest.raises(ValueError):
+            np.add.at(arr, [0, 1], [1, 2, 3])
+
+    def test_reduce_arguments(self):
+        f = np.add.reduce
+        d = np.ones((5, 2), dtype=int)
+        o = np.ones((2,), dtype=d.dtype)
+        r = o * 5
+        assert_equal(f(d), r)
+        # a, axis=0, dtype=None, out=None, keepdims=False
+        assert_equal(f(d, axis=0), r)
+        assert_equal(f(d, 0), r)
+        assert_equal(f(d, 0, dtype=None), r)
+        assert_equal(f(d, 0, dtype='i'), r)
+        assert_equal(f(d, 0, 'i'), r)
+        assert_equal(f(d, 0, None), r)
+        assert_equal(f(d, 0, None, out=None), r)
+        assert_equal(f(d, 0, None, out=o), r)
+        assert_equal(f(d, 0, None, o), r)
+        assert_equal(f(d, 0, None, None), r)
+        assert_equal(f(d, 0, None, None, keepdims=False), r)
+        assert_equal(f(d, 0, None, None, True), r.reshape((1,) + r.shape))
+        assert_equal(f(d, 0, None, None, False, 0), r)
+        assert_equal(f(d, 0, None, None, False, initial=0), r)
+        assert_equal(f(d, 0, None, None, False, 0, True), r)
+        assert_equal(f(d, 0, None, None, False, 0, where=True), r)
+        # multiple keywords
+        assert_equal(f(d, axis=0, dtype=None, out=None, keepdims=False), r)
+        assert_equal(f(d, 0, dtype=None, out=None, keepdims=False), r)
+        assert_equal(f(d, 0, None, out=None, keepdims=False), r)
+        assert_equal(f(d, 0, None, out=None, keepdims=False, initial=0,
+                       where=True), r)
+
+        # too little
+        assert_raises(TypeError, f)
+        # too much
+        assert_raises(TypeError, f, d, 0, None, None, False, 0, True, 1)
+        # invalid axis
+        assert_raises(TypeError, f, d, "invalid")
+        assert_raises(TypeError, f, d, axis="invalid")
+        assert_raises(TypeError, f, d, axis="invalid", dtype=None,
+                      keepdims=True)
+        # invalid dtype
+        assert_raises(TypeError, f, d, 0, "invalid")
+        assert_raises(TypeError, f, d, dtype="invalid")
+        assert_raises(TypeError, f, d, dtype="invalid", out=None)
+        # invalid out
+        assert_raises(TypeError, f, d, 0, None, "invalid")
+        assert_raises(TypeError, f, d, out="invalid")
+        assert_raises(TypeError, f, d, out="invalid", dtype=None)
+        # keepdims boolean, no invalid value
+        # assert_raises(TypeError, f, d, 0, None, None, "invalid")
+        # assert_raises(TypeError, f, d, keepdims="invalid", axis=0, dtype=None)
+        # invalid mix
+        assert_raises(TypeError, f, d, 0, keepdims="invalid", dtype="invalid",
+                     out=None)
+
+        # invalid keyword
+        assert_raises(TypeError, f, d, axis=0, dtype=None, invalid=0)
+        assert_raises(TypeError, f, d, invalid=0)
+        assert_raises(TypeError, f, d, 0, keepdims=True, invalid="invalid",
+                      out=None)
+        assert_raises(TypeError, f, d, axis=0, dtype=None, keepdims=True,
+                      out=None, invalid=0)
+        assert_raises(TypeError, f, d, axis=0, dtype=None,
+                      out=None, invalid=0)
+
+    def test_structured_equal(self):
+        # https://github.com/numpy/numpy/issues/4855
+
+        class MyA(np.ndarray):
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                return getattr(ufunc, method)(*(input.view(np.ndarray)
+                                              for input in inputs), **kwargs)
+        a = np.arange(12.).reshape(4, 3)
+        ra = a.view(dtype=('f8,f8,f8')).squeeze()
+        mra = ra.view(MyA)
+
+        target = np.array([True, False, False, False], dtype=bool)
+        assert_equal(np.all(target == (mra == ra[0])), True)
+
+    def test_scalar_equal(self):
+        # Scalar comparisons should always work, without deprecation warnings.
+        # even when the ufunc fails.
+        a = np.array(0.)
+        b = np.array('a')
+        assert_(a != b)
+        assert_(b != a)
+        assert_(not (a == b))
+        assert_(not (b == a))
+
+    def test_NotImplemented_not_returned(self):
+        # See gh-5964 and gh-2091. Some of these functions are not operator
+        # related and were fixed for other reasons in the past.
+        binary_funcs = [
+            np.power, np.add, np.subtract, np.multiply, np.divide,
+            np.true_divide, np.floor_divide, np.bitwise_and, np.bitwise_or,
+            np.bitwise_xor, np.left_shift, np.right_shift, np.fmax,
+            np.fmin, np.fmod, np.hypot, np.logaddexp, np.logaddexp2,
+            np.maximum, np.minimum, np.mod,
+            np.greater, np.greater_equal, np.less, np.less_equal,
+            np.equal, np.not_equal]
+
+        a = np.array('1')
+        b = 1
+        c = np.array([1., 2.])
+        for f in binary_funcs:
+            assert_raises(TypeError, f, a, b)
+            assert_raises(TypeError, f, c, a)
+
+    @pytest.mark.parametrize("ufunc",
+             [np.logical_and, np.logical_or])  # logical_xor object loop is bad
+    @pytest.mark.parametrize("signature",
+             [(None, None, object), (object, None, None),
+              (None, object, None)])
+    def test_logical_ufuncs_object_signatures(self, ufunc, signature):
+        a = np.array([True, None, False], dtype=object)
+        res = ufunc(a, a, signature=signature)
+        assert res.dtype == object
+
+    @pytest.mark.parametrize("ufunc",
+            [np.logical_and, np.logical_or, np.logical_xor])
+    @pytest.mark.parametrize("signature",
+                 [(bool, None, object), (object, None, bool),
+                  (None, object, bool)])
+    def test_logical_ufuncs_mixed_object_signatures(self, ufunc, signature):
+        # Most mixed signatures fail (except those with bool out, e.g. `OO->?`)
+        a = np.array([True, None, False])
+        with pytest.raises(TypeError):
+            ufunc(a, a, signature=signature)
+
+    @pytest.mark.parametrize("ufunc",
+            [np.logical_and, np.logical_or, np.logical_xor])
+    def test_logical_ufuncs_support_anything(self, ufunc):
+        # The logical ufuncs support even input that can't be promoted:
+        a = np.array(b'1', dtype="V3")
+        c = np.array([1., 2.])
+        assert_array_equal(ufunc(a, c), ufunc([True, True], True))
+        assert ufunc.reduce(a) == True
+        # check that the output has no effect:
+        out = np.zeros(2, dtype=np.int32)
+        expected = ufunc([True, True], True).astype(out.dtype)
+        assert_array_equal(ufunc(a, c, out=out), expected)
+        out = np.zeros((), dtype=np.int32)
+        assert ufunc.reduce(a, out=out) == True
+        # Last check, test reduction when out and a match (the complexity here
+        # is that the "i,i->?" may seem right, but should not match.
+        a = np.array([3], dtype="i")
+        out = np.zeros((), dtype=a.dtype)
+        assert ufunc.reduce(a, out=out) == 1
+
+    @pytest.mark.parametrize("ufunc",
+            [np.logical_and, np.logical_or, np.logical_xor])
+    @pytest.mark.parametrize("dtype", ["S", "U"])
+    @pytest.mark.parametrize("values", [["1", "hi", "0"], ["", ""]])
+    def test_logical_ufuncs_supports_string(self, ufunc, dtype, values):
+        # note that values are either all true or all false
+        arr = np.array(values, dtype=dtype)
+        obj_arr = np.array(values, dtype=object)
+        res = ufunc(arr, arr)
+        expected = ufunc(obj_arr, obj_arr, dtype=bool)
+
+        assert_array_equal(res, expected)
+
+        res = ufunc.reduce(arr)
+        expected = ufunc.reduce(obj_arr, dtype=bool)
+        assert_array_equal(res, expected)
+
+    @pytest.mark.parametrize("ufunc",
+             [np.logical_and, np.logical_or, np.logical_xor])
+    def test_logical_ufuncs_out_cast_check(self, ufunc):
+        a = np.array('1')
+        c = np.array([1., 2.])
+        out = a.copy()
+        with pytest.raises(TypeError):
+            # It would be safe, but not equiv casting:
+            ufunc(a, c, out=out, casting="equiv")
+
+    def test_reducelike_byteorder_resolution(self):
+        # See gh-20699, byte-order changes need some extra care in the type
+        # resolution to make the following succeed:
+        arr_be = np.arange(10, dtype=">i8")
+        arr_le = np.arange(10, dtype="<i8")
+
+        assert np.add.reduce(arr_be) == np.add.reduce(arr_le)
+        assert_array_equal(np.add.accumulate(arr_be), np.add.accumulate(arr_le))
+        assert_array_equal(
+            np.add.reduceat(arr_be, [1]), np.add.reduceat(arr_le, [1]))
+
+    def test_reducelike_out_promotes(self):
+        # Check that the out argument to reductions is considered for
+        # promotion.  See also gh-20455.
+        # Note that these paths could prefer `initial=` in the future and
+        # do not up-cast to the default integer for add and prod
+        arr = np.ones(1000, dtype=np.uint8)
+        out = np.zeros((), dtype=np.uint16)
+        assert np.add.reduce(arr, out=out) == 1000
+        arr[:10] = 2
+        assert np.multiply.reduce(arr, out=out) == 2**10
+
+        # For legacy dtypes, the signature currently has to be forced if `out=`
+        # is passed.  The two paths below should differ, without `dtype=` the
+        # expected result should be: `np.prod(arr.astype("f8")).astype("f4")`!
+        arr = np.full(5, 2**25 - 1, dtype=np.int64)
+
+        # float32 and int64 promote to float64:
+        res = np.zeros((), dtype=np.float32)
+        # If `dtype=` is passed, the calculation is forced to float32:
+        single_res = np.zeros((), dtype=np.float32)
+        np.multiply.reduce(arr, out=single_res, dtype=np.float32)
+        assert single_res != res
+
+    def test_reducelike_output_needs_identical_cast(self):
+        # Checks the case where a simple byte-swap works, mainly tests that
+        # this is not rejected directly.
+        # (interesting because we require descriptor identity in reducelikes).
+        arr = np.ones(20, dtype="f8")
+        out = np.empty((), dtype=arr.dtype.newbyteorder())
+        expected = np.add.reduce(arr)
+        np.add.reduce(arr, out=out)
+        assert_array_equal(expected, out)
+        # Check reduceat:
+        out = np.empty(2, dtype=arr.dtype.newbyteorder())
+        expected = np.add.reduceat(arr, [0, 1])
+        np.add.reduceat(arr, [0, 1], out=out)
+        assert_array_equal(expected, out)
+        # And accumulate:
+        out = np.empty(arr.shape, dtype=arr.dtype.newbyteorder())
+        expected = np.add.accumulate(arr)
+        np.add.accumulate(arr, out=out)
+        assert_array_equal(expected, out)
+
+    def test_reduce_noncontig_output(self):
+        # Check that reduction deals with non-contiguous output arrays
+        # appropriately.
+        #
+        # gh-8036
+
+        x = np.arange(7 * 13 * 8, dtype=np.int16).reshape(7, 13, 8)
+        x = x[4:6, 1:11:6, 1:5].transpose(1, 2, 0)
+        y_base = np.arange(4 * 4, dtype=np.int16).reshape(4, 4)
+        y = y_base[::2, :]
+
+        y_base_copy = y_base.copy()
+
+        r0 = np.add.reduce(x, out=y.copy(), axis=2)
+        r1 = np.add.reduce(x, out=y, axis=2)
+
+        # The results should match, and y_base shouldn't get clobbered
+        assert_equal(r0, r1)
+        assert_equal(y_base[1, :], y_base_copy[1, :])
+        assert_equal(y_base[3, :], y_base_copy[3, :])
+
+    @pytest.mark.parametrize("with_cast", [True, False])
+    def test_reduceat_and_accumulate_out_shape_mismatch(self, with_cast):
+        # Should raise an error mentioning "shape" or "size"
+        arr = np.arange(5)
+        out = np.arange(3)  # definitely wrong shape
+        if with_cast:
+            # If a cast is necessary on the output, we can be sure to use
+            # the generic NpyIter (non-fast) path.
+            out = out.astype(np.float64)
+
+        with pytest.raises(ValueError, match="(shape|size)"):
+            np.add.reduceat(arr, [0, 3], out=out)
+
+        with pytest.raises(ValueError, match="(shape|size)"):
+            np.add.accumulate(arr, out=out)
+
+    @pytest.mark.parametrize('out_shape',
+                             [(), (1,), (3,), (1, 1), (1, 3), (4, 3)])
+    @pytest.mark.parametrize('keepdims', [True, False])
+    @pytest.mark.parametrize('f_reduce', [np.add.reduce, np.minimum.reduce])
+    def test_reduce_wrong_dimension_output(self, f_reduce, keepdims, out_shape):
+        # Test that we're not incorrectly broadcasting dimensions.
+        # See gh-15144 (failed for np.add.reduce previously).
+        a = np.arange(12.).reshape(4, 3)
+        out = np.empty(out_shape, a.dtype)
+
+        correct_out = f_reduce(a, axis=0, keepdims=keepdims)
+        if out_shape != correct_out.shape:
+            with assert_raises(ValueError):
+                f_reduce(a, axis=0, out=out, keepdims=keepdims)
+        else:
+            check = f_reduce(a, axis=0, out=out, keepdims=keepdims)
+            assert_(check is out)
+            assert_array_equal(check, correct_out)
+
+    def test_reduce_output_does_not_broadcast_input(self):
+        # Test that the output shape cannot broadcast an input dimension
+        # (it never can add dimensions, but it might expand an existing one)
+        a = np.ones((1, 10))
+        out_correct = (np.empty((1, 1)))
+        out_incorrect = np.empty((3, 1))
+        np.add.reduce(a, axis=-1, out=out_correct, keepdims=True)
+        np.add.reduce(a, axis=-1, out=out_correct[:, 0], keepdims=False)
+        with assert_raises(ValueError):
+            np.add.reduce(a, axis=-1, out=out_incorrect, keepdims=True)
+        with assert_raises(ValueError):
+            np.add.reduce(a, axis=-1, out=out_incorrect[:, 0], keepdims=False)
+
+    def test_reduce_output_subclass_ok(self):
+        class MyArr(np.ndarray):
+            pass
+
+        out = np.empty(())
+        np.add.reduce(np.ones(5), out=out)  # no subclass, all fine
+        out = out.view(MyArr)
+        assert np.add.reduce(np.ones(5), out=out) is out
+        assert type(np.add.reduce(out)) is MyArr
+
+    def test_no_doc_string(self):
+        # gh-9337
+        assert_('\n' not in umt.inner1d_no_doc.__doc__)
+
+    def test_invalid_args(self):
+        # gh-7961
+        exc = pytest.raises(TypeError, np.sqrt, None)
+        # minimally check the exception text
+        assert exc.match('loop of ufunc does not support')
+
+    @pytest.mark.parametrize('nat', [np.datetime64('nat'), np.timedelta64('nat')])
+    def test_nat_is_not_finite(self, nat):
+        try:
+            assert not np.isfinite(nat)
+        except TypeError:
+            pass  # ok, just not implemented
+
+    @pytest.mark.parametrize('nat', [np.datetime64('nat'), np.timedelta64('nat')])
+    def test_nat_is_nan(self, nat):
+        try:
+            assert np.isnan(nat)
+        except TypeError:
+            pass  # ok, just not implemented
+
+    @pytest.mark.parametrize('nat', [np.datetime64('nat'), np.timedelta64('nat')])
+    def test_nat_is_not_inf(self, nat):
+        try:
+            assert not np.isinf(nat)
+        except TypeError:
+            pass  # ok, just not implemented
+
+
+class TestGUFuncProcessCoreDims:
+
+    def test_conv1d_full_without_out(self):
+        x = np.arange(5.0)
+        y = np.arange(13.0)
+        w = umt.conv1d_full(x, y)
+        assert_equal(w, np.convolve(x, y, mode='full'))
+
+    def test_conv1d_full_with_out(self):
+        x = np.arange(5.0)
+        y = np.arange(13.0)
+        out = np.zeros(len(x) + len(y) - 1)
+        umt.conv1d_full(x, y, out=out)
+        assert_equal(out, np.convolve(x, y, mode='full'))
+
+    def test_conv1d_full_basic_broadcast(self):
+        # x.shape is (3, 6)
+        x = np.array([[1, 3, 0, -10, 2, 2],
+                      [0, -1, 2, 2, 10, 4],
+                      [8, 9, 10, 2, 23, 3]])
+        # y.shape is (2, 1, 7)
+        y = np.array([[[3, 4, 5, 20, 30, 40, 29]],
+                      [[5, 6, 7, 10, 11, 12, -5]]])
+        # result should have shape (2, 3, 12)
+        result = umt.conv1d_full(x, y)
+        assert result.shape == (2, 3, 12)
+        for i in range(2):
+            for j in range(3):
+                assert_equal(result[i, j], np.convolve(x[j], y[i, 0]))
+
+    def test_bad_out_shape(self):
+        x = np.ones((1, 2))
+        y = np.ones((2, 3))
+        out = np.zeros((2, 3))  # Not the correct shape.
+        with pytest.raises(ValueError, match=r'does not equal m \+ n - 1'):
+            umt.conv1d_full(x, y, out=out)
+
+    def test_bad_input_both_inputs_length_zero(self):
+        with pytest.raises(ValueError,
+                           match='both inputs have core dimension 0'):
+            umt.conv1d_full([], [])
+
+
+@pytest.mark.parametrize('ufunc', [getattr(np, x) for x in dir(np)
+                                   if isinstance(getattr(np, x), np.ufunc)])
+def test_ufunc_types(ufunc):
+    '''
+    Check all ufuncs that the correct type is returned. Avoid
+    object and boolean types since many operations are not defined for
+    for them.
+
+    Choose the shape so even dot and matmul will succeed
+    '''
+    for typ in ufunc.types:
+        # types is a list of strings like ii->i
+        if 'O' in typ or '?' in typ:
+            continue
+        inp, out = typ.split('->')
+        args = [np.ones((3, 3), t) for t in inp]
+        with warnings.catch_warnings(record=True):
+            warnings.filterwarnings("always")
+            res = ufunc(*args)
+        if isinstance(res, tuple):
+            outs = tuple(out)
+            assert len(res) == len(outs)
+            for r, t in zip(res, outs):
+                assert r.dtype == np.dtype(t)
+        else:
+            assert res.dtype == np.dtype(out)
+
+@pytest.mark.parametrize('ufunc', [getattr(np, x) for x in dir(np)
+                                if isinstance(getattr(np, x), np.ufunc)])
+def test_ufunc_noncontiguous(ufunc):
+    '''
+    Check that contiguous and non-contiguous calls to ufuncs
+    have the same results for values in range(9)
+    '''
+    for typ in ufunc.types:
+        # types is a list of strings like ii->i
+        if any(set('O?mM') & set(typ)):
+            # bool, object, datetime are too irregular for this simple test
+            continue
+        inp, out = typ.split('->')
+        args_c = [np.empty((6, 6), t) for t in inp]
+        # non contiguous (2, 3 step on the two dimensions)
+        args_n = [np.empty((12, 18), t)[::2, ::3] for t in inp]
+        # alignment != itemsize is possible.  So create an array with such
+        # an odd step manually.
+        args_o = []
+        for t in inp:
+            orig_dt = np.dtype(t)
+            off_dt = f"S{orig_dt.alignment}"  # offset by alignment
+            dtype = np.dtype([("_", off_dt), ("t", orig_dt)], align=False)
+            args_o.append(np.empty((6, 6), dtype=dtype)["t"])
+        for a in args_c + args_n + args_o:
+            a.flat = range(1, 37)
+
+        with warnings.catch_warnings(record=True):
+            warnings.filterwarnings("always")
+            res_c = ufunc(*args_c)
+            res_n = ufunc(*args_n)
+            res_o = ufunc(*args_o)
+        if len(out) == 1:
+            res_c = (res_c,)
+            res_n = (res_n,)
+            res_o = (res_o,)
+        for c_ar, n_ar, o_ar in zip(res_c, res_n, res_o):
+            dt = c_ar.dtype
+            if np.issubdtype(dt, np.floating):
+                # for floating point results allow a small fuss in comparisons
+                # since different algorithms (libm vs. intrinsics) can be used
+                # for different input strides
+                res_eps = np.finfo(dt).eps
+                tol = 3 * res_eps
+                assert_allclose(res_c, res_n, atol=tol, rtol=tol)
+                assert_allclose(res_c, res_o, atol=tol, rtol=tol)
+            else:
+                assert_equal(c_ar, n_ar)
+                assert_equal(c_ar, o_ar)
+
+
+@pytest.mark.parametrize('ufunc', [np.sign, np.equal])
+def test_ufunc_warn_with_nan(ufunc):
+    # issue gh-15127
+    # test that calling certain ufuncs with a non-standard `nan` value does not
+    # emit a warning
+    # `b` holds a 64 bit signaling nan: the most significant bit of the
+    # significand is zero.
+    b = np.array([0x7ff0000000000001], 'i8').view('f8')
+    assert np.isnan(b)
+    if ufunc.nin == 1:
+        ufunc(b)
+    elif ufunc.nin == 2:
+        ufunc(b, b.copy())
+    else:
+        raise ValueError('ufunc with more than 2 inputs')
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_ufunc_out_casterrors():
+    # Tests that casting errors are correctly reported and buffers are
+    # cleared.
+    # The following array can be added to itself as an object array, but
+    # the result cannot be cast to an integer output:
+    value = 123  # relies on python cache (leak-check will still find it)
+    arr = np.array([value] * int(ncu.BUFSIZE * 1.5) +
+                   ["string"] +
+                   [value] * int(1.5 * ncu.BUFSIZE), dtype=object)
+    out = np.ones(len(arr), dtype=np.intp)
+
+    count = sys.getrefcount(value)
+    with pytest.raises(ValueError):
+        # Output casting failure:
+        np.add(arr, arr, out=out, casting="unsafe")
+
+    assert count == sys.getrefcount(value)
+    # output is unchanged after the error, this shows that the iteration
+    # was aborted (this is not necessarily defined behaviour)
+    assert out[-1] == 1
+
+    with pytest.raises(ValueError):
+        # Input casting failure:
+        np.add(arr, arr, out=out, dtype=np.intp, casting="unsafe")
+
+    assert count == sys.getrefcount(value)
+    # output is unchanged after the error, this shows that the iteration
+    # was aborted (this is not necessarily defined behaviour)
+    assert out[-1] == 1
+
+
+@pytest.mark.parametrize("bad_offset", [0, int(ncu.BUFSIZE * 1.5)])
+def test_ufunc_input_casterrors(bad_offset):
+    value = 123
+    arr = np.array([value] * bad_offset +
+                   ["string"] +
+                   [value] * int(1.5 * ncu.BUFSIZE), dtype=object)
+    with pytest.raises(ValueError):
+        # Force cast inputs, but the buffered cast of `arr` to intp fails:
+        np.add(arr, arr, dtype=np.intp, casting="unsafe")
+
+
+@pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+@pytest.mark.parametrize("bad_offset", [0, int(ncu.BUFSIZE * 1.5)])
+def test_ufunc_input_floatingpoint_error(bad_offset):
+    value = 123
+    arr = np.array([value] * bad_offset +
+                   [np.nan] +
+                   [value] * int(1.5 * ncu.BUFSIZE))
+    with np.errstate(invalid="raise"), pytest.raises(FloatingPointError):
+        # Force cast inputs, but the buffered cast of `arr` to intp fails:
+        np.add(arr, arr, dtype=np.intp, casting="unsafe")
+
+
+@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+@pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc")
+@pytest.mark.parametrize(
+    "methodname",
+    ["__call__", "accumulate", "at", "outer", "reduce", "reduceat", "resolve_dtypes"],
+)
+def test_ufunc_method_signatures(methodname: str):
+    method = getattr(np.ufunc, methodname)
+
+    try:
+        _ = inspect.signature(method)
+    except ValueError as e:
+        pytest.fail(e.args[0])
+
+
+def test_trivial_loop_invalid_cast():
+    # This tests the fast-path "invalid cast", see gh-19904.
+    with pytest.raises(TypeError,
+            match="cast ufunc 'add' input 0"):
+        # the void dtype definitely cannot cast to double:
+        np.add(np.array(1, "i,i"), 3, signature="dd->d")
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+@pytest.mark.parametrize("offset",
+        [0, ncu.BUFSIZE // 2, int(1.5 * ncu.BUFSIZE)])
+def test_reduce_casterrors(offset):
+    # Test reporting of casting errors in reductions, we test various
+    # offsets to where the casting error will occur, since these may occur
+    # at different places during the reduction procedure. For example
+    # the first item may be special.
+    value = 123  # relies on python cache (leak-check will still find it)
+    arr = np.array([value] * offset +
+                   ["string"] +
+                   [value] * int(1.5 * ncu.BUFSIZE), dtype=object)
+    out = np.array(-1, dtype=np.intp)
+
+    count = sys.getrefcount(value)
+    with pytest.raises(ValueError, match="invalid literal"):
+        # This is an unsafe cast, but we currently always allow that.
+        # Note that the double loop is picked, but the cast fails.
+        # `initial=None` disables the use of an identity here to test failures
+        # while copying the first values path (not used when identity exists).
+        np.add.reduce(arr, dtype=np.intp, out=out, initial=None)
+    assert count == sys.getrefcount(value)
+    # If an error occurred during casting, the operation is done at most until
+    # the error occurs (the result of which would be `value * offset`) and -1
+    # if the error happened immediately.
+    # This does not define behaviour, the output is invalid and thus undefined
+    assert out[()] < value * offset
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_reduction_no_reference_leak():
+    # Test that the generic reduction does not leak references.
+    # gh-29358
+    arr = np.array([1, 2, 3], dtype=np.int32)
+    count = sys.getrefcount(arr)
+
+    np.add.reduce(arr, dtype=np.int32, initial=0)
+    assert count == sys.getrefcount(arr)
+
+    np.add.accumulate(arr, dtype=np.int32)
+    assert count == sys.getrefcount(arr)
+
+    np.add.reduceat(arr, [0, 1], dtype=np.int32)
+    assert count == sys.getrefcount(arr)
+
+    # with `out=` the reference count is not changed
+    out = np.empty((), dtype=np.int32)
+    out_count = sys.getrefcount(out)
+
+    np.add.reduce(arr, dtype=np.int32, out=out, initial=0)
+    assert count == sys.getrefcount(arr)
+    assert out_count == sys.getrefcount(out)
+
+    out = np.empty(arr.shape, dtype=np.int32)
+    out_count = sys.getrefcount(out)
+
+    np.add.accumulate(arr, dtype=np.int32, out=out)
+    assert count == sys.getrefcount(arr)
+    assert out_count == sys.getrefcount(out)
+
+    out = np.empty((2,), dtype=np.int32)
+    out_count = sys.getrefcount(out)
+
+    np.add.reduceat(arr, [0, 1], dtype=np.int32, out=out)
+    assert count == sys.getrefcount(arr)
+    assert out_count == sys.getrefcount(out)
+
+
+def test_object_reduce_cleanup_on_failure():
+    # Test cleanup, including of the initial value (manually provided or not)
+    with pytest.raises(TypeError):
+        np.add.reduce([1, 2, None], initial=4)
+
+    with pytest.raises(TypeError):
+        np.add.reduce([1, 2, None])
+
+
+@pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+@pytest.mark.parametrize("method",
+        [np.add.accumulate, np.add.reduce,
+         pytest.param(lambda x: np.add.reduceat(x, [0]), id="reduceat"),
+         pytest.param(lambda x: np.log.at(x, [2]), id="at")])
+def test_ufunc_methods_floaterrors(method):
+    # adding inf and -inf (or log(-inf) creates an invalid float and warns
+    arr = np.array([np.inf, 0, -np.inf])
+    with np.errstate(all="warn"):
+        with pytest.warns(RuntimeWarning, match="invalid value"):
+            method(arr)
+
+    arr = np.array([np.inf, 0, -np.inf])
+    with np.errstate(all="raise"):
+        with pytest.raises(FloatingPointError):
+            method(arr)
+
+
+def _check_neg_zero(value):
+    if value != 0.0:
+        return False
+    if not np.signbit(value.real):
+        return False
+    if value.dtype.kind == "c":
+        return np.signbit(value.imag)
+    return True
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+def test_addition_negative_zero(dtype):
+    dtype = np.dtype(dtype)
+    if dtype.kind == "c":
+        neg_zero = dtype.type(complex(-0.0, -0.0))
+    else:
+        neg_zero = dtype.type(-0.0)
+
+    arr = np.array(neg_zero)
+    arr2 = np.array(neg_zero)
+
+    assert _check_neg_zero(arr + arr2)
+    # In-place ops may end up on a different path (reduce path) see gh-21211
+    arr += arr2
+    assert _check_neg_zero(arr)
+
+
+@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+@pytest.mark.parametrize("use_initial", [True, False])
+def test_addition_reduce_negative_zero(dtype, use_initial):
+    dtype = np.dtype(dtype)
+    if dtype.kind == "c":
+        neg_zero = dtype.type(complex(-0.0, -0.0))
+    else:
+        neg_zero = dtype.type(-0.0)
+
+    kwargs = {}
+    if use_initial:
+        kwargs["initial"] = neg_zero
+    else:
+        pytest.xfail("-0. propagation in sum currently requires initial")
+
+    # Test various length, in case SIMD paths or chunking play a role.
+    # 150 extends beyond the pairwise blocksize; probably not important.
+    for i in range(150):
+        arr = np.array([neg_zero] * i, dtype=dtype)
+        res = np.sum(arr, **kwargs)
+        if i > 0 or use_initial:
+            assert _check_neg_zero(res)
+        else:
+            # `sum([])` should probably be 0.0 and not -0.0 like `sum([-0.0])`
+            assert not np.signbit(res.real)
+            assert not np.signbit(res.imag)
+
+
+@pytest.mark.parametrize(["dt1", "dt2"],
+        [("S", "U"), ("U", "S"), ("S", "d"), ("S", "V"), ("U", "l")])
+def test_addition_string_types(dt1, dt2):
+    arr1 = np.array([1234234], dtype=dt1)
+    arr2 = np.array([b"423"], dtype=dt2)
+    with pytest.raises(np._core._exceptions.UFuncTypeError) as exc:
+        np.add(arr1, arr2)
+
+
+@pytest.mark.parametrize("order1,order2",
+                         [(">", ">"), ("<", "<"), (">", "<"), ("<", ">")])
+def test_addition_unicode_inverse_byte_order(order1, order2):
+    element = 'abcd'
+    arr1 = np.array([element], dtype=f"{order1}U4")
+    arr2 = np.array([element], dtype=f"{order2}U4")
+    result = arr1 + arr2
+    assert result == 2 * element
+
+
+@pytest.mark.parametrize("dtype", [np.int8, np.int16, np.int32, np.int64])
+def test_find_non_long_args(dtype):
+    element = 'abcd'
+    start = dtype(0)
+    end = dtype(len(element))
+    arr = np.array([element])
+    result = np._core.umath.find(arr, "a", start, end)
+    assert result.dtype == np.dtype("intp")
+    assert result == 0
+
+
+def test_find_access_past_buffer():
+    # This checks that no read past the string buffer occurs in
+    # string_fastsearch.h. The buffer class makes sure this is checked.
+    # To see it in action, you can remove the checks in the buffer and
+    # this test will produce an 'Invalid read' if run under valgrind.
+    arr = np.array([b'abcd', b'ebcd'])
+    result = np._core.umath.find(arr, b'cde', 0, np.iinfo(np.int64).max)
+    assert np.all(result == -1)
+
+
+class TestLowlevelAPIAccess:
+    def test_resolve_dtypes_basic(self):
+        # Basic test for dtype resolution:
+        i4 = np.dtype("i4")
+        f4 = np.dtype("f4")
+        f8 = np.dtype("f8")
+
+        r = np.add.resolve_dtypes((i4, f4, None))
+        assert r == (f8, f8, f8)
+
+        # Signature uses the same logic to parse as ufunc (less strict)
+        # the following is "same-kind" casting so works:
+        r = np.add.resolve_dtypes((
+                i4, i4, None), signature=(None, None, "f4"))
+        assert r == (f4, f4, f4)
+
+        # Check NEP 50 "weak" promotion also:
+        r = np.add.resolve_dtypes((f4, int, None))
+        assert r == (f4, f4, f4)
+
+        with pytest.raises(TypeError):
+            np.add.resolve_dtypes((i4, f4, None), casting="no")
+
+    def test_resolve_dtypes_comparison(self):
+        i4 = np.dtype("i4")
+        i8 = np.dtype("i8")
+        b = np.dtype("?")
+        r = np.equal.resolve_dtypes((i4, i8, None))
+        assert r == (i8, i8, b)
+
+    def test_weird_dtypes(self):
+        S0 = np.dtype("S0")
+        # S0 is often converted by NumPy to S1, but not here:
+        r = np.equal.resolve_dtypes((S0, S0, None))
+        assert r == (S0, S0, np.dtype(bool))
+
+        # Subarray dtypes are weird and may not work fully, we preserve them
+        # leading to a TypeError (currently no equal loop for void/structured)
+        dts = np.dtype("10i")
+        with pytest.raises(TypeError):
+            np.equal.resolve_dtypes((dts, dts, None))
+
+    def test_resolve_dtypes_reduction(self):
+        i2 = np.dtype("i2")
+        default_int_ = np.dtype(np.int_)
+        # Check special addition resolution:
+        res = np.add.resolve_dtypes((None, i2, None), reduction=True)
+        assert res == (default_int_, default_int_, default_int_)
+
+    def test_resolve_dtypes_reduction_no_output(self):
+        i4 = np.dtype("i4")
+        with pytest.raises(TypeError):
+            # May be allowable at some point?
+            np.add.resolve_dtypes((i4, i4, i4), reduction=True)
+
+    @pytest.mark.parametrize("dtypes", [
+            (np.dtype("i"), np.dtype("i")),
+            (None, np.dtype("i"), np.dtype("f")),
+            (np.dtype("i"), None, np.dtype("f")),
+            ("i4", "i4", None)])
+    def test_resolve_dtypes_errors(self, dtypes):
+        with pytest.raises(TypeError):
+            np.add.resolve_dtypes(dtypes)
+
+    def test_resolve_dtypes_reduction_errors(self):
+        i2 = np.dtype("i2")
+
+        with pytest.raises(TypeError):
+            np.add.resolve_dtypes((None, i2, i2))
+
+        with pytest.raises(TypeError):
+            np.add.signature((None, None, "i4"))
+
+    @pytest.mark.skipif(not hasattr(ct, "pythonapi"),
+            reason="`ctypes.pythonapi` required for capsule unpacking.")
+    @pytest.mark.thread_unsafe(reason="modifies global object in the ctypes API")
+    def test_loop_access(self):
+        # This is a basic test for the full strided loop access
+        data_t = ct.c_char_p * 2
+        dim_t = ct.c_ssize_t * 1
+        strides_t = ct.c_ssize_t * 2
+        strided_loop_t = ct.CFUNCTYPE(
+                ct.c_int, ct.c_void_p, data_t, dim_t, strides_t, ct.c_void_p)
+
+        class call_info_t(ct.Structure):
+            _fields_ = [
+                ("strided_loop", strided_loop_t),
+                ("context", ct.c_void_p),
+                ("auxdata", ct.c_void_p),
+                ("requires_pyapi", ct.c_byte),
+                ("no_floatingpoint_errors", ct.c_byte),
+            ]
+
+        i4 = np.dtype("i4")
+        dt, call_info_obj = np.negative._resolve_dtypes_and_context((i4, i4))
+        assert dt == (i4, i4)  # can be used without casting
+
+        # Fill in the rest of the information:
+        np.negative._get_strided_loop(call_info_obj)
+
+        ct.pythonapi.PyCapsule_GetPointer.restype = ct.c_void_p
+        call_info = ct.pythonapi.PyCapsule_GetPointer(
+                ct.py_object(call_info_obj),
+                ct.c_char_p(b"numpy_1.24_ufunc_call_info"))
+
+        call_info = ct.cast(call_info, ct.POINTER(call_info_t)).contents
+
+        arr = np.arange(10, dtype=i4)
+        call_info.strided_loop(
+                call_info.context,
+                data_t(arr.ctypes.data, arr.ctypes.data),
+                arr.ctypes.shape,  # is a C-array with 10 here
+                strides_t(arr.ctypes.strides[0], arr.ctypes.strides[0]),
+                call_info.auxdata)
+
+        # We just directly called the negative inner-loop in-place:
+        assert_array_equal(arr, -np.arange(10, dtype=i4))
+
+    @pytest.mark.parametrize("strides", [1, (1, 2, 3), (1, "2")])
+    def test__get_strided_loop_errors_bad_strides(self, strides):
+        i4 = np.dtype("i4")
+        dt, call_info = np.negative._resolve_dtypes_and_context((i4, i4))
+
+        with pytest.raises(TypeError, match="fixed_strides.*tuple.*or None"):
+            np.negative._get_strided_loop(call_info, fixed_strides=strides)
+
+    def test__get_strided_loop_errors_bad_call_info(self):
+        i4 = np.dtype("i4")
+        dt, call_info = np.negative._resolve_dtypes_and_context((i4, i4))
+
+        with pytest.raises(ValueError, match="PyCapsule"):
+            np.negative._get_strided_loop("not the capsule!")
+
+        with pytest.raises(TypeError, match=".*incompatible context"):
+            np.add._get_strided_loop(call_info)
+
+        np.negative._get_strided_loop(call_info)
+        with pytest.raises(TypeError):
+            # cannot call it a second time:
+            np.negative._get_strided_loop(call_info)
+
+    def test_long_arrays(self):
+        t = np.zeros((1029, 917), dtype=np.single)
+        t[0][0] = 1
+        t[28][414] = 1
+        tc = np.cos(t)
+        assert_equal(tc[0][0], tc[28][414])
+
+
+class TestUFuncInspectSignature:
+    PARAMS_COMMON = {
+        "casting": "same_kind",
+        "order": "K",
+        "dtype": None,
+        "subok": True,
+        "signature": None,
+    }
+
+    PARAMS_UFUNC = {
+        "where": True,
+    } | PARAMS_COMMON
+
+    PARAMS_GUFUNC = {
+        "axes": np._NoValue,
+        "axis": np._NoValue,
+        "keepdims": False,
+    } | PARAMS_COMMON
+
+    @pytest.mark.parametrize("ufunc", [np.log, np.gcd, np.frexp, np.divmod, np.matvec])
+    def test_dunder_signature_attr(self, ufunc: np.ufunc):
+        assert hasattr(ufunc, "__signature__")
+        assert isinstance(ufunc.__signature__, inspect.Signature)
+        assert inspect.signature(ufunc) == ufunc.__signature__
+
+    @pytest.mark.parametrize("ufunc", [np.exp, np.mod, np.frexp, np.divmod, np.vecmat])
+    def test_params_common_positional(self, ufunc: np.ufunc):
+        sig = inspect.signature(ufunc)
+
+        # check positional-only parameters
+        posonly_params = {name: param.default
+                          for name, param in sig.parameters.items()
+                          if param.kind is param.POSITIONAL_ONLY}
+        assert len(posonly_params) == ufunc.nin
+        assert all(default is inspect.Parameter.empty
+                   for default in posonly_params.values())
+
+        # check 'out' parameter
+        out_param = sig.parameters.get("out")
+        assert out_param is not None
+        assert out_param.kind is inspect.Parameter.POSITIONAL_OR_KEYWORD
+
+    @pytest.mark.parametrize("ufunc", [np.sin, np.add, np.frexp, np.divmod])
+    def test_params_common_ufunc(self, ufunc: np.ufunc):
+        assert ufunc.signature is None  # sanity check
+
+        sig = inspect.signature(ufunc)
+
+        # check keyword-only parameters
+        keyword_params = {name: param.default
+                          for name, param in sig.parameters.items()
+                          if param.kind is param.KEYWORD_ONLY}
+        assert keyword_params == self.PARAMS_UFUNC
+
+    @pytest.mark.parametrize("gufunc", [np.matmul, np.matvec, np.vecdot, np.vecmat])
+    def test_params_common_gufunc(self, gufunc: np.ufunc):
+        assert gufunc.signature is not None  # sanity check
+
+        sig = inspect.signature(gufunc)
+
+        # check keyword-only parameters
+        keyword_params = {name: param.default
+                          for name, param in sig.parameters.items()
+                          if param.kind is param.KEYWORD_ONLY}
+        assert keyword_params == self.PARAMS_GUFUNC
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath.py
new file mode 100644
index 0000000000000000000000000000000000000000..9f2f7118ac5cdd185f15f7110e4a5a2fe5191ac0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath.py
@@ -0,0 +1,4975 @@
+import fnmatch
+import inspect
+import itertools
+import operator
+import platform
+import sys
+import warnings
+from collections import namedtuple
+from fractions import Fraction
+from functools import reduce
+
+import pytest
+
+import numpy as np
+import numpy._core.umath as ncu
+from numpy._core import _umath_tests as ncu_tests, sctypes
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_MUSL,
+    IS_PYPY,
+    IS_WASM,
+    _gen_alignment_data,
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_almost_equal_nulp,
+    assert_array_equal,
+    assert_array_max_ulp,
+    assert_equal,
+    assert_no_warnings,
+    assert_raises,
+    assert_raises_regex,
+)
+from numpy.testing._private.utils import _glibc_older_than
+
+UFUNCS = [obj for obj in np._core.umath.__dict__.values()
+         if isinstance(obj, np.ufunc)]
+
+UFUNCS_UNARY = [
+    uf for uf in UFUNCS if uf.nin == 1
+]
+UFUNCS_UNARY_FP = [
+    uf for uf in UFUNCS_UNARY if 'f->f' in uf.types
+]
+
+UFUNCS_BINARY = [
+    uf for uf in UFUNCS if uf.nin == 2
+]
+UFUNCS_BINARY_ACC = [
+    uf for uf in UFUNCS_BINARY if hasattr(uf, "accumulate") and uf.nout == 1
+]
+
+def interesting_binop_operands(val1, val2, dtype):
+    """
+    Helper to create "interesting" operands to cover common code paths:
+    * scalar inputs
+    * only first "values" is an array (e.g. scalar division fast-paths)
+    * Longer array (SIMD) placing the value of interest at different positions
+    * Oddly strided arrays which may not be SIMD compatible
+
+    It does not attempt to cover unaligned access or mixed dtypes.
+    These are normally handled by the casting/buffering machinery.
+
+    This is not a fixture (currently), since I believe a fixture normally
+    only yields once?
+    """
+    fill_value = 1  # could be a parameter, but maybe not an optional one?
+
+    arr1 = np.full(10003, dtype=dtype, fill_value=fill_value)
+    arr2 = np.full(10003, dtype=dtype, fill_value=fill_value)
+
+    arr1[0] = val1
+    arr2[0] = val2
+
+    extractor = lambda res: res
+    yield arr1[0], arr2[0], extractor, "scalars"
+
+    extractor = lambda res: res
+    yield arr1[0, ...], arr2[0, ...], extractor, "scalar-arrays"
+
+    # reset array values to fill_value:
+    arr1[0] = fill_value
+    arr2[0] = fill_value
+
+    for pos in [0, 1, 2, 3, 4, 5, -1, -2, -3, -4]:
+        arr1[pos] = val1
+        arr2[pos] = val2
+
+        extractor = lambda res: res[pos]
+        yield arr1, arr2, extractor, f"off-{pos}"
+        yield arr1, arr2[pos], extractor, f"off-{pos}-with-scalar"
+
+        arr1[pos] = fill_value
+        arr2[pos] = fill_value
+
+    for stride in [-1, 113]:
+        op1 = arr1[::stride]
+        op2 = arr2[::stride]
+        op1[10] = val1
+        op2[10] = val2
+
+        extractor = lambda res: res[10]
+        yield op1, op2, extractor, f"stride-{stride}"
+
+        op1[10] = fill_value
+        op2[10] = fill_value
+
+
+def on_powerpc():
+    """ True if we are running on a Power PC platform."""
+    return platform.processor() == 'powerpc' or \
+           platform.machine().startswith('ppc')
+
+
+def bad_arcsinh():
+    """The blocklisted trig functions are not accurate on aarch64/PPC for
+    complex256. Rather than dig through the actual problem skip the
+    test. This should be fixed when we can move past glibc2.17
+    which is the version in manylinux2014
+    """
+    if platform.machine() == 'aarch64':
+        x = 1.78e-10
+    elif on_powerpc():
+        x = 2.16e-10
+    else:
+        return False
+    v1 = np.arcsinh(np.float128(x))
+    v2 = np.arcsinh(np.complex256(x)).real
+    # The eps for float128 is 1-e33, so this is way bigger
+    return abs((v1 / v2) - 1.0) > 1e-23
+
+
+class _FilterInvalids:
+    def setup_method(self):
+        self.olderr = np.seterr(invalid='ignore')
+
+    def teardown_method(self):
+        np.seterr(**self.olderr)
+
+
+class TestConstants:
+    def test_pi(self):
+        assert_allclose(ncu.pi, 3.141592653589793, 1e-15)
+
+    def test_e(self):
+        assert_allclose(ncu.e, 2.718281828459045, 1e-15)
+
+    def test_euler_gamma(self):
+        assert_allclose(ncu.euler_gamma, 0.5772156649015329, 1e-15)
+
+
+class TestOut:
+    def test_out_subok(self):
+        for subok in (True, False):
+            a = np.array(0.5)
+            o = np.empty(())
+
+            r = np.add(a, 2, o, subok=subok)
+            assert_(r is o)
+            r = np.add(a, 2, out=o, subok=subok)
+            assert_(r is o)
+            r = np.add(a, 2, out=(o,), subok=subok)
+            assert_(r is o)
+
+            d = np.array(5.7)
+            o1 = np.empty(())
+            o2 = np.empty((), dtype=np.int32)
+
+            r1, r2 = np.frexp(d, o1, None, subok=subok)
+            assert_(r1 is o1)
+            r1, r2 = np.frexp(d, None, o2, subok=subok)
+            assert_(r2 is o2)
+            r1, r2 = np.frexp(d, o1, o2, subok=subok)
+            assert_(r1 is o1)
+            assert_(r2 is o2)
+
+            r1, r2 = np.frexp(d, out=(o1, None), subok=subok)
+            assert_(r1 is o1)
+            r1, r2 = np.frexp(d, out=(None, o2), subok=subok)
+            assert_(r2 is o2)
+            r1, r2 = np.frexp(d, out=(o1, o2), subok=subok)
+            assert_(r1 is o1)
+            assert_(r2 is o2)
+
+            with assert_raises(TypeError):
+                # Out argument must be tuple, since there are multiple outputs.
+                r1, r2 = np.frexp(d, out=o1, subok=subok)
+
+            assert_raises(TypeError, np.add, a, 2, o, o, subok=subok)
+            assert_raises(TypeError, np.add, a, 2, o, out=o, subok=subok)
+            assert_raises(TypeError, np.add, a, 2, None, out=o, subok=subok)
+            assert_raises(ValueError, np.add, a, 2, out=(o, o), subok=subok)
+            assert_raises(ValueError, np.add, a, 2, out=(), subok=subok)
+            assert_raises(TypeError, np.add, a, 2, [], subok=subok)
+            assert_raises(TypeError, np.add, a, 2, out=[], subok=subok)
+            assert_raises(TypeError, np.add, a, 2, out=([],), subok=subok)
+            o.flags.writeable = False
+            assert_raises(ValueError, np.add, a, 2, o, subok=subok)
+            assert_raises(ValueError, np.add, a, 2, out=o, subok=subok)
+            assert_raises(ValueError, np.add, a, 2, out=(o,), subok=subok)
+
+    def test_out_wrap_subok(self):
+        class ArrayWrap(np.ndarray):
+            __array_priority__ = 10
+
+            def __new__(cls, arr):
+                return np.asarray(arr).view(cls).copy()
+
+            def __array_wrap__(self, arr, context=None, return_scalar=False):
+                return arr.view(type(self))
+
+        for subok in (True, False):
+            a = ArrayWrap([0.5])
+
+            r = np.add(a, 2, subok=subok)
+            if subok:
+                assert_(isinstance(r, ArrayWrap))
+            else:
+                assert_(type(r) == np.ndarray)
+
+            r = np.add(a, 2, None, subok=subok)
+            if subok:
+                assert_(isinstance(r, ArrayWrap))
+            else:
+                assert_(type(r) == np.ndarray)
+
+            r = np.add(a, 2, out=None, subok=subok)
+            if subok:
+                assert_(isinstance(r, ArrayWrap))
+            else:
+                assert_(type(r) == np.ndarray)
+
+            r = np.add(a, 2, out=(None,), subok=subok)
+            if subok:
+                assert_(isinstance(r, ArrayWrap))
+            else:
+                assert_(type(r) == np.ndarray)
+
+            d = ArrayWrap([5.7])
+            o1 = np.empty((1,))
+            o2 = np.empty((1,), dtype=np.int32)
+
+            r1, r2 = np.frexp(d, o1, subok=subok)
+            if subok:
+                assert_(isinstance(r2, ArrayWrap))
+            else:
+                assert_(type(r2) == np.ndarray)
+
+            r1, r2 = np.frexp(d, o1, None, subok=subok)
+            if subok:
+                assert_(isinstance(r2, ArrayWrap))
+            else:
+                assert_(type(r2) == np.ndarray)
+
+            r1, r2 = np.frexp(d, None, o2, subok=subok)
+            if subok:
+                assert_(isinstance(r1, ArrayWrap))
+            else:
+                assert_(type(r1) == np.ndarray)
+
+            r1, r2 = np.frexp(d, out=(o1, None), subok=subok)
+            if subok:
+                assert_(isinstance(r2, ArrayWrap))
+            else:
+                assert_(type(r2) == np.ndarray)
+
+            r1, r2 = np.frexp(d, out=(None, o2), subok=subok)
+            if subok:
+                assert_(isinstance(r1, ArrayWrap))
+            else:
+                assert_(type(r1) == np.ndarray)
+
+            with assert_raises(TypeError):
+                # Out argument must be tuple, since there are multiple outputs.
+                r1, r2 = np.frexp(d, out=o1, subok=subok)
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_out_wrap_no_leak(self):
+        # Regression test for gh-26545
+        class ArrSubclass(np.ndarray):
+            pass
+
+        arr = np.arange(10).view(ArrSubclass)
+        orig_refcount = sys.getrefcount(arr)
+        arr *= 1
+        assert sys.getrefcount(arr) == orig_refcount
+
+
+class TestComparisons:
+    import operator
+
+    @pytest.mark.parametrize('dtype', sctypes['uint'] + sctypes['int'] +
+                             sctypes['float'] + [np.bool])
+    @pytest.mark.parametrize('py_comp,np_comp', [
+        (operator.lt, np.less),
+        (operator.le, np.less_equal),
+        (operator.gt, np.greater),
+        (operator.ge, np.greater_equal),
+        (operator.eq, np.equal),
+        (operator.ne, np.not_equal)
+    ])
+    def test_comparison_functions(self, dtype, py_comp, np_comp):
+        # Initialize input arrays
+        if dtype == np.bool:
+            a = np.random.choice(a=[False, True], size=1000)
+            b = np.random.choice(a=[False, True], size=1000)
+            scalar = True
+        else:
+            a = np.random.randint(low=1, high=10, size=1000).astype(dtype)
+            b = np.random.randint(low=1, high=10, size=1000).astype(dtype)
+            scalar = 5
+        np_scalar = np.dtype(dtype).type(scalar)
+        a_lst = a.tolist()
+        b_lst = b.tolist()
+
+        # (Binary) Comparison (x1=array, x2=array)
+        comp_b = np_comp(a, b).view(np.uint8)
+        comp_b_list = [int(py_comp(x, y)) for x, y in zip(a_lst, b_lst)]
+
+        # (Scalar1) Comparison (x1=scalar, x2=array)
+        comp_s1 = np_comp(np_scalar, b).view(np.uint8)
+        comp_s1_list = [int(py_comp(scalar, x)) for x in b_lst]
+
+        # (Scalar2) Comparison (x1=array, x2=scalar)
+        comp_s2 = np_comp(a, np_scalar).view(np.uint8)
+        comp_s2_list = [int(py_comp(x, scalar)) for x in a_lst]
+
+        # Sequence: Binary, Scalar1 and Scalar2
+        assert_(comp_b.tolist() == comp_b_list,
+            f"Failed comparison ({py_comp.__name__})")
+        assert_(comp_s1.tolist() == comp_s1_list,
+            f"Failed comparison ({py_comp.__name__})")
+        assert_(comp_s2.tolist() == comp_s2_list,
+            f"Failed comparison ({py_comp.__name__})")
+
+    def test_ignore_object_identity_in_equal(self):
+        # Check comparing identical objects whose comparison
+        # is not a simple boolean, e.g., arrays that are compared elementwise.
+        a = np.array([np.array([1, 2, 3]), None], dtype=object)
+        assert_raises(ValueError, np.equal, a, a)
+
+        # Check error raised when comparing identical non-comparable objects.
+        class FunkyType:
+            def __eq__(self, other):
+                raise TypeError("I won't compare")
+
+        a = np.array([FunkyType()])
+        assert_raises(TypeError, np.equal, a, a)
+
+        # Check identity doesn't override comparison mismatch.
+        a = np.array([np.nan], dtype=object)
+        assert_equal(np.equal(a, a), [False])
+
+    def test_ignore_object_identity_in_not_equal(self):
+        # Check comparing identical objects whose comparison
+        # is not a simple boolean, e.g., arrays that are compared elementwise.
+        a = np.array([np.array([1, 2, 3]), None], dtype=object)
+        assert_raises(ValueError, np.not_equal, a, a)
+
+        # Check error raised when comparing identical non-comparable objects.
+        class FunkyType:
+            def __ne__(self, other):
+                raise TypeError("I won't compare")
+
+        a = np.array([FunkyType()])
+        assert_raises(TypeError, np.not_equal, a, a)
+
+        # Check identity doesn't override comparison mismatch.
+        a = np.array([np.nan], dtype=object)
+        assert_equal(np.not_equal(a, a), [True])
+
+    def test_error_in_equal_reduce(self):
+        # gh-20929
+        # make sure np.equal.reduce raises a TypeError if an array is passed
+        # without specifying the dtype
+        a = np.array([0, 0])
+        assert_equal(np.equal.reduce(a, dtype=bool), True)
+        assert_raises(TypeError, np.equal.reduce, a)
+
+    def test_object_dtype(self):
+        assert np.equal(1, [1], dtype=object).dtype == object
+        assert np.equal(1, [1], signature=(None, None, "O")).dtype == object
+
+    def test_object_nonbool_dtype_error(self):
+        # bool output dtype is fine of course:
+        assert np.equal(1, [1], dtype=bool).dtype == bool
+
+        # but the following are examples do not have a loop:
+        with pytest.raises(TypeError, match="No loop matching"):
+            np.equal(1, 1, dtype=np.int64)
+
+        with pytest.raises(TypeError, match="No loop matching"):
+            np.equal(1, 1, sig=(None, None, "l"))
+
+    @pytest.mark.parametrize("dtypes", ["qQ", "Qq"])
+    @pytest.mark.parametrize('py_comp, np_comp', [
+        (operator.lt, np.less),
+        (operator.le, np.less_equal),
+        (operator.gt, np.greater),
+        (operator.ge, np.greater_equal),
+        (operator.eq, np.equal),
+        (operator.ne, np.not_equal)
+    ])
+    @pytest.mark.parametrize("vals", [(2**60, 2**60 + 1), (2**60 + 1, 2**60)])
+    def test_large_integer_direct_comparison(
+            self, dtypes, py_comp, np_comp, vals):
+        # Note that float(2**60) + 1 == float(2**60).
+        a1 = np.array([2**60], dtype=dtypes[0])
+        a2 = np.array([2**60 + 1], dtype=dtypes[1])
+        expected = py_comp(2**60, 2**60 + 1)
+
+        assert py_comp(a1, a2) == expected
+        assert np_comp(a1, a2) == expected
+        # Also check the scalars:
+        s1 = a1[0]
+        s2 = a2[0]
+        assert isinstance(s1, np.integer)
+        assert isinstance(s2, np.integer)
+        # The Python operator here is mainly interesting:
+        assert py_comp(s1, s2) == expected
+        assert np_comp(s1, s2) == expected
+
+    @pytest.mark.parametrize("dtype", np.typecodes['UnsignedInteger'])
+    @pytest.mark.parametrize('py_comp_func, np_comp_func', [
+        (operator.lt, np.less),
+        (operator.le, np.less_equal),
+        (operator.gt, np.greater),
+        (operator.ge, np.greater_equal),
+        (operator.eq, np.equal),
+        (operator.ne, np.not_equal)
+    ])
+    @pytest.mark.parametrize("flip", [True, False])
+    def test_unsigned_signed_direct_comparison(
+            self, dtype, py_comp_func, np_comp_func, flip):
+        if flip:
+            py_comp = lambda x, y: py_comp_func(y, x)
+            np_comp = lambda x, y: np_comp_func(y, x)
+        else:
+            py_comp = py_comp_func
+            np_comp = np_comp_func
+
+        arr = np.array([np.iinfo(dtype).max], dtype=dtype)
+        expected = py_comp(int(arr[0]), -1)
+
+        assert py_comp(arr, -1) == expected
+        assert np_comp(arr, -1) == expected
+
+        scalar = arr[0]
+        assert isinstance(scalar, np.integer)
+        # The Python operator here is mainly interesting:
+        assert py_comp(scalar, -1) == expected
+        assert np_comp(scalar, -1) == expected
+
+
+class TestAdd:
+    def test_reduce_alignment(self):
+        # gh-9876
+        # make sure arrays with weird strides work with the optimizations in
+        # pairwise_sum_@TYPE@. On x86, the 'b' field will count as aligned at a
+        # 4 byte offset, even though its itemsize is 8.
+        a = np.zeros(2, dtype=[('a', np.int32), ('b', np.float64)])
+        a['a'] = -1
+        assert_equal(a['b'].sum(), 0)
+
+
+class TestDivision:
+    def test_division_int(self):
+        # int division should follow Python
+        x = np.array([5, 10, 90, 100, -5, -10, -90, -100, -120])
+        if 5 / 10 == 0.5:
+            assert_equal(x / 100, [0.05, 0.1, 0.9, 1,
+                                   -0.05, -0.1, -0.9, -1, -1.2])
+        else:
+            assert_equal(x / 100, [0, 0, 0, 1, -1, -1, -1, -1, -2])
+        assert_equal(x // 100, [0, 0, 0, 1, -1, -1, -1, -1, -2])
+        assert_equal(x % 100, [5, 10, 90, 0, 95, 90, 10, 0, 80])
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("dtype,ex_val", itertools.product(
+        sctypes['int'] + sctypes['uint'], (
+            (
+                # dividend
+                "np.array(range(fo.max-lsize, fo.max)).astype(dtype),"
+                # divisors
+                "np.arange(lsize).astype(dtype),"
+                # scalar divisors
+                "range(15)"
+            ),
+            (
+                # dividend
+                "np.arange(fo.min, fo.min+lsize).astype(dtype),"
+                # divisors
+                "np.arange(lsize//-2, lsize//2).astype(dtype),"
+                # scalar divisors
+                "range(fo.min, fo.min + 15)"
+            ), (
+                # dividend
+                "np.array(range(fo.max-lsize, fo.max)).astype(dtype),"
+                # divisors
+                "np.arange(lsize).astype(dtype),"
+                # scalar divisors
+                "[1,3,9,13,neg, fo.min+1, fo.min//2, fo.max//3, fo.max//4]"
+            )
+        )
+    ))
+    def test_division_int_boundary(self, dtype, ex_val):
+        fo = np.iinfo(dtype)
+        neg = -1 if fo.min < 0 else 1
+        # Large enough to test SIMD loops and remainder elements
+        lsize = 512 + 7
+        a, b, divisors = eval(ex_val)
+        a_lst, b_lst = a.tolist(), b.tolist()
+
+        c_div = lambda n, d: (
+            0 if d == 0 else (
+                fo.min if (n and n == fo.min and d == -1) else n // d
+            )
+        )
+        with np.errstate(divide='ignore'):
+            ac = a.copy()
+            ac //= b
+            div_ab = a // b
+        div_lst = [c_div(x, y) for x, y in zip(a_lst, b_lst)]
+
+        msg = "Integer arrays floor division check (//)"
+        assert all(div_ab == div_lst), msg
+        msg_eq = "Integer arrays floor division check (//=)"
+        assert all(ac == div_lst), msg_eq
+
+        for divisor in divisors:
+            ac = a.copy()
+            with np.errstate(divide='ignore', over='ignore'):
+                div_a = a // divisor
+                ac //= divisor
+            div_lst = [c_div(i, divisor) for i in a_lst]
+
+            assert all(div_a == div_lst), msg
+            assert all(ac == div_lst), msg_eq
+
+        with np.errstate(divide='raise', over='raise'):
+            if 0 in b:
+                # Verify overflow case
+                with pytest.raises(FloatingPointError,
+                        match="divide by zero encountered in floor_divide"):
+                    a // b
+            else:
+                a // b
+            if fo.min and fo.min in a:
+                with pytest.raises(FloatingPointError,
+                        match='overflow encountered in floor_divide'):
+                    a // -1
+            elif fo.min:
+                a // -1
+            with pytest.raises(FloatingPointError,
+                    match="divide by zero encountered in floor_divide"):
+                a // 0
+            with pytest.raises(FloatingPointError,
+                    match="divide by zero encountered in floor_divide"):
+                ac = a.copy()
+                ac //= 0
+
+            np.array([], dtype=dtype) // 0
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("dtype,ex_val", itertools.product(
+        sctypes['int'] + sctypes['uint'], (
+            "np.array([fo.max, 1, 2, 1, 1, 2, 3], dtype=dtype)",
+            "np.array([fo.min, 1, -2, 1, 1, 2, -3]).astype(dtype)",
+            "np.arange(fo.min, fo.min+(100*10), 10, dtype=dtype)",
+            "np.array(range(fo.max-(100*7), fo.max, 7)).astype(dtype)",
+        )
+    ))
+    def test_division_int_reduce(self, dtype, ex_val):
+        fo = np.iinfo(dtype)
+        a = eval(ex_val)
+        lst = a.tolist()
+        c_div = lambda n, d: (
+            0 if d == 0 or (n and n == fo.min and d == -1) else n // d
+        )
+
+        with np.errstate(divide='ignore'):
+            div_a = np.floor_divide.reduce(a)
+        div_lst = reduce(c_div, lst)
+        msg = "Reduce floor integer division check"
+        assert div_a == div_lst, msg
+
+        with np.errstate(divide='raise', over='raise'):
+            with pytest.raises(FloatingPointError,
+                    match="divide by zero encountered in reduce"):
+                np.floor_divide.reduce(np.arange(-100, 100).astype(dtype))
+            if fo.min:
+                with pytest.raises(FloatingPointError,
+                        match='overflow encountered in reduce'):
+                    np.floor_divide.reduce(
+                        np.array([fo.min, 1, -1], dtype=dtype)
+                    )
+
+    @pytest.mark.parametrize(
+            "dividend,divisor,quotient",
+            [(np.timedelta64(2, 'Y'), np.timedelta64(2, 'M'), 12),
+             (np.timedelta64(2, 'Y'), np.timedelta64(-2, 'M'), -12),
+             (np.timedelta64(-2, 'Y'), np.timedelta64(2, 'M'), -12),
+             (np.timedelta64(-2, 'Y'), np.timedelta64(-2, 'M'), 12),
+             (np.timedelta64(2, 'M'), np.timedelta64(-2, 'Y'), -1),
+             (np.timedelta64(2, 'Y'), np.timedelta64(0, 'M'), 0),
+             (np.timedelta64(2, 'Y'), 2, np.timedelta64(1, 'Y')),
+             (np.timedelta64(2, 'Y'), -2, np.timedelta64(-1, 'Y')),
+             (np.timedelta64(-2, 'Y'), 2, np.timedelta64(-1, 'Y')),
+             (np.timedelta64(-2, 'Y'), -2, np.timedelta64(1, 'Y')),
+             (np.timedelta64(-2, 'Y'), -2, np.timedelta64(1, 'Y')),
+             (np.timedelta64(-2, 'Y'), -3, np.timedelta64(0, 'Y')),
+             (np.timedelta64(-2, 'Y'), 0, np.timedelta64('Nat', 'Y')),
+            ])
+    def test_division_int_timedelta(self, dividend, divisor, quotient):
+        # If either divisor is 0 or quotient is Nat, check for division by 0
+        if divisor and (isinstance(quotient, int) or not np.isnat(quotient)):
+            msg = "Timedelta floor division check"
+            assert dividend // divisor == quotient, msg
+
+            # Test for arrays as well
+            msg = "Timedelta arrays floor division check"
+            dividend_array = np.array([dividend] * 5)
+            quotient_array = np.array([quotient] * 5)
+            assert all(dividend_array // divisor == quotient_array), msg
+        else:
+            if IS_WASM:
+                pytest.skip("fp errors don't work in wasm")
+            with np.errstate(divide='raise', invalid='raise'):
+                with pytest.raises(FloatingPointError):
+                    dividend // divisor
+
+    def test_division_complex(self):
+        # check that implementation is correct
+        msg = "Complex division implementation check"
+        x = np.array([1. + 1. * 1j, 1. + .5 * 1j, 1. + 2. * 1j], dtype=np.complex128)
+        assert_almost_equal(x**2 / x, x, err_msg=msg)
+        # check overflow, underflow
+        msg = "Complex division overflow/underflow check"
+        x = np.array([1.e+110, 1.e-110], dtype=np.complex128)
+        y = x**2 / x
+        assert_almost_equal(y / x, [1, 1], err_msg=msg)
+
+    def test_zero_division_complex(self):
+        with np.errstate(invalid="ignore", divide="ignore"):
+            x = np.array([0.0], dtype=np.complex128)
+            y = 1.0 / x
+            assert_(np.isinf(y)[0])
+            y = complex(np.inf, np.nan) / x
+            assert_(np.isinf(y)[0])
+            y = complex(np.nan, np.inf) / x
+            assert_(np.isinf(y)[0])
+            y = complex(np.inf, np.inf) / x
+            assert_(np.isinf(y)[0])
+            y = 0.0 / x
+            assert_(np.isnan(y)[0])
+
+    def test_floor_division_complex(self):
+        # check that floor division, divmod and remainder raises type errors
+        x = np.array([.9 + 1j, -.1 + 1j, .9 + .5 * 1j, .9 + 2. * 1j], dtype=np.complex128)
+        with pytest.raises(TypeError):
+            x // 7
+        with pytest.raises(TypeError):
+            np.divmod(x, 7)
+        with pytest.raises(TypeError):
+            np.remainder(x, 7)
+
+    def test_floor_division_signed_zero(self):
+        # Check that the sign bit is correctly set when dividing positive and
+        # negative zero by one.
+        x = np.zeros(10)
+        assert_equal(np.signbit(x // 1), 0)
+        assert_equal(np.signbit((-x) // 1), 1)
+
+    @pytest.mark.skipif(hasattr(np.__config__, "blas_ssl2_info"),
+            reason="gh-22982")
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize('dtype', np.typecodes['Float'])
+    def test_floor_division_errors(self, dtype):
+        fnan = np.array(np.nan, dtype=dtype)
+        fone = np.array(1.0, dtype=dtype)
+        fzer = np.array(0.0, dtype=dtype)
+        finf = np.array(np.inf, dtype=dtype)
+        # divide by zero error check
+        with np.errstate(divide='raise', invalid='ignore'):
+            assert_raises(FloatingPointError, np.floor_divide, fone, fzer)
+        with np.errstate(divide='ignore', invalid='raise'):
+            np.floor_divide(fone, fzer)
+
+        # The following already contain a NaN and should not warn
+        with np.errstate(all='raise'):
+            np.floor_divide(fnan, fone)
+            np.floor_divide(fone, fnan)
+            np.floor_divide(fnan, fzer)
+            np.floor_divide(fzer, fnan)
+
+    @pytest.mark.parametrize('dtype', np.typecodes['Float'])
+    def test_floor_division_corner_cases(self, dtype):
+        # test corner cases like 1.0//0.0 for errors and return vals
+        x = np.zeros(10, dtype=dtype)
+        y = np.ones(10, dtype=dtype)
+        fnan = np.array(np.nan, dtype=dtype)
+        fone = np.array(1.0, dtype=dtype)
+        fzer = np.array(0.0, dtype=dtype)
+        finf = np.array(np.inf, dtype=dtype)
+        with warnings.catch_warnings():
+            warnings.filterwarnings('ignore', "invalid value encountered in floor_divide", RuntimeWarning)
+            div = np.floor_divide(fnan, fone)
+            assert np.isnan(div), f"div: {div}"
+            div = np.floor_divide(fone, fnan)
+            assert np.isnan(div), f"div: {div}"
+            div = np.floor_divide(fnan, fzer)
+            assert np.isnan(div), f"div: {div}"
+        # verify 1.0//0.0 computations return inf
+        with np.errstate(divide='ignore'):
+            z = np.floor_divide(y, x)
+            assert_(np.isinf(z).all())
+
+def floor_divide_and_remainder(x, y):
+    return (np.floor_divide(x, y), np.remainder(x, y))
+
+
+def _signs(dt):
+    if dt in np.typecodes['UnsignedInteger']:
+        return (+1,)
+    else:
+        return (+1, -1)
+
+
+class TestRemainder:
+
+    def test_remainder_basic(self):
+        dt = np.typecodes['AllInteger'] + np.typecodes['Float']
+        for op in [floor_divide_and_remainder, np.divmod]:
+            for dt1, dt2 in itertools.product(dt, dt):
+                for sg1, sg2 in itertools.product(_signs(dt1), _signs(dt2)):
+                    fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s'
+                    msg = fmt % (op.__name__, dt1, dt2, sg1, sg2)
+                    a = np.array(sg1 * 71, dtype=dt1)
+                    b = np.array(sg2 * 19, dtype=dt2)
+                    div, rem = op(a, b)
+                    assert_equal(div * b + rem, a, err_msg=msg)
+                    if sg2 == -1:
+                        assert_(b < rem <= 0, msg)
+                    else:
+                        assert_(b > rem >= 0, msg)
+
+    def test_float_remainder_exact(self):
+        # test that float results are exact for small integers. This also
+        # holds for the same integers scaled by powers of two.
+        nlst = list(range(-127, 0))
+        plst = list(range(1, 128))
+        dividend = nlst + [0] + plst
+        divisor = nlst + plst
+        arg = list(itertools.product(dividend, divisor))
+        tgt = [divmod(*t) for t in arg]
+
+        a, b = np.array(arg, dtype=int).T
+        # convert exact integer results from Python to float so that
+        # signed zero can be used, it is checked.
+        tgtdiv, tgtrem = np.array(tgt, dtype=float).T
+        tgtdiv = np.where((tgtdiv == 0.0) & ((b < 0) ^ (a < 0)), -0.0, tgtdiv)
+        tgtrem = np.where((tgtrem == 0.0) & (b < 0), -0.0, tgtrem)
+
+        for op in [floor_divide_and_remainder, np.divmod]:
+            for dt in np.typecodes['Float']:
+                msg = f'op: {op.__name__}, dtype: {dt}'
+                fa = a.astype(dt)
+                fb = b.astype(dt)
+                div, rem = op(fa, fb)
+                assert_equal(div, tgtdiv, err_msg=msg)
+                assert_equal(rem, tgtrem, err_msg=msg)
+
+    def test_float_remainder_roundoff(self):
+        # gh-6127
+        dt = np.typecodes['Float']
+        for op in [floor_divide_and_remainder, np.divmod]:
+            for dt1, dt2 in itertools.product(dt, dt):
+                for sg1, sg2 in itertools.product((+1, -1), (+1, -1)):
+                    fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s'
+                    msg = fmt % (op.__name__, dt1, dt2, sg1, sg2)
+                    a = np.array(sg1 * 78 * 6e-8, dtype=dt1)
+                    b = np.array(sg2 * 6e-8, dtype=dt2)
+                    div, rem = op(a, b)
+                    # Equal assertion should hold when fmod is used
+                    assert_equal(div * b + rem, a, err_msg=msg)
+                    if sg2 == -1:
+                        assert_(b < rem <= 0, msg)
+                    else:
+                        assert_(b > rem >= 0, msg)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.xfail(sys.platform.startswith("darwin"),
+            reason="MacOS seems to not give the correct 'invalid' warning for "
+                   "`fmod`.  Hopefully, others always do.")
+    @pytest.mark.parametrize('dtype', np.typecodes['Float'])
+    def test_float_divmod_errors(self, dtype):
+        # Check valid errors raised for divmod and remainder
+        fzero = np.array(0.0, dtype=dtype)
+        fone = np.array(1.0, dtype=dtype)
+        finf = np.array(np.inf, dtype=dtype)
+        fnan = np.array(np.nan, dtype=dtype)
+        # since divmod is combination of both remainder and divide
+        # ops it will set both dividebyzero and invalid flags
+        with np.errstate(divide='raise', invalid='ignore'):
+            assert_raises(FloatingPointError, np.divmod, fone, fzero)
+        with np.errstate(divide='ignore', invalid='raise'):
+            assert_raises(FloatingPointError, np.divmod, fone, fzero)
+        with np.errstate(invalid='raise'):
+            assert_raises(FloatingPointError, np.divmod, fzero, fzero)
+        with np.errstate(invalid='raise'):
+            assert_raises(FloatingPointError, np.divmod, finf, finf)
+        with np.errstate(divide='ignore', invalid='raise'):
+            assert_raises(FloatingPointError, np.divmod, finf, fzero)
+        with np.errstate(divide='raise', invalid='ignore'):
+            # inf / 0 does not set any flags, only the modulo creates a NaN
+            np.divmod(finf, fzero)
+
+    @pytest.mark.skipif(hasattr(np.__config__, "blas_ssl2_info"),
+            reason="gh-22982")
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.xfail(sys.platform.startswith("darwin"),
+           reason="MacOS seems to not give the correct 'invalid' warning for "
+                  "`fmod`.  Hopefully, others always do.")
+    @pytest.mark.parametrize('dtype', np.typecodes['Float'])
+    @pytest.mark.parametrize('fn', [np.fmod, np.remainder])
+    def test_float_remainder_errors(self, dtype, fn):
+        fzero = np.array(0.0, dtype=dtype)
+        fone = np.array(1.0, dtype=dtype)
+        finf = np.array(np.inf, dtype=dtype)
+        fnan = np.array(np.nan, dtype=dtype)
+
+        # The following already contain a NaN and should not warn.
+        with np.errstate(all='raise'):
+            with pytest.raises(FloatingPointError,
+                    match="invalid value"):
+                fn(fone, fzero)
+            fn(fnan, fzero)
+            fn(fzero, fnan)
+            fn(fone, fnan)
+            fn(fnan, fone)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_float_remainder_overflow(self):
+        a = np.finfo(np.float64).tiny
+        with np.errstate(over='ignore', invalid='ignore'):
+            div, mod = np.divmod(4, a)
+            np.isinf(div)
+            assert_(mod == 0)
+        with np.errstate(over='raise', invalid='ignore'):
+            assert_raises(FloatingPointError, np.divmod, 4, a)
+        with np.errstate(invalid='raise', over='ignore'):
+            assert_raises(FloatingPointError, np.divmod, 4, a)
+
+    def test_float_divmod_corner_cases(self):
+        # check nan cases
+        for dt in np.typecodes['Float']:
+            fnan = np.array(np.nan, dtype=dt)
+            fone = np.array(1.0, dtype=dt)
+            fzer = np.array(0.0, dtype=dt)
+            finf = np.array(np.inf, dtype=dt)
+            with warnings.catch_warnings():
+                warnings.filterwarnings('ignore', "invalid value encountered in divmod", RuntimeWarning)
+                warnings.filterwarnings('ignore', "divide by zero encountered in divmod", RuntimeWarning)
+                div, rem = np.divmod(fone, fzer)
+                assert np.isinf(div), f'dt: {dt}, div: {rem}'
+                assert np.isnan(rem), f'dt: {dt}, rem: {rem}'
+                div, rem = np.divmod(fzer, fzer)
+                assert np.isnan(rem), f'dt: {dt}, rem: {rem}'
+                assert_(np.isnan(div)), f'dt: {dt}, rem: {rem}'
+                div, rem = np.divmod(finf, finf)
+                assert np.isnan(div), f'dt: {dt}, rem: {rem}'
+                assert np.isnan(rem), f'dt: {dt}, rem: {rem}'
+                div, rem = np.divmod(finf, fzer)
+                assert np.isinf(div), f'dt: {dt}, rem: {rem}'
+                assert np.isnan(rem), f'dt: {dt}, rem: {rem}'
+                div, rem = np.divmod(fnan, fone)
+                assert np.isnan(rem), f"dt: {dt}, rem: {rem}"
+                assert np.isnan(div), f"dt: {dt}, rem: {rem}"
+                div, rem = np.divmod(fone, fnan)
+                assert np.isnan(rem), f"dt: {dt}, rem: {rem}"
+                assert np.isnan(div), f"dt: {dt}, rem: {rem}"
+                div, rem = np.divmod(fnan, fzer)
+                assert np.isnan(rem), f"dt: {dt}, rem: {rem}"
+                assert np.isnan(div), f"dt: {dt}, rem: {rem}"
+
+    def test_float_remainder_corner_cases(self):
+        # Check remainder magnitude.
+        for dt in np.typecodes['Float']:
+            fone = np.array(1.0, dtype=dt)
+            fzer = np.array(0.0, dtype=dt)
+            fnan = np.array(np.nan, dtype=dt)
+            b = np.array(1.0, dtype=dt)
+            a = np.nextafter(np.array(0.0, dtype=dt), -b)
+            rem = np.remainder(a, b)
+            assert_(rem <= b, f'dt: {dt}')
+            rem = np.remainder(-a, -b)
+            assert_(rem >= -b, f'dt: {dt}')
+
+        # Check nans, inf
+        with warnings.catch_warnings():
+            warnings.filterwarnings('ignore', "invalid value encountered in remainder", RuntimeWarning)
+            warnings.filterwarnings('ignore', "invalid value encountered in fmod", RuntimeWarning)
+            for dt in np.typecodes['Float']:
+                fone = np.array(1.0, dtype=dt)
+                fzer = np.array(0.0, dtype=dt)
+                finf = np.array(np.inf, dtype=dt)
+                fnan = np.array(np.nan, dtype=dt)
+                rem = np.remainder(fone, fzer)
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                # MSVC 2008 returns NaN here, so disable the check.
+                #rem = np.remainder(fone, finf)
+                #assert_(rem == fone, 'dt: %s, rem: %s' % (dt, rem))
+                rem = np.remainder(finf, fone)
+                fmod = np.fmod(finf, fone)
+                assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}')
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                rem = np.remainder(finf, finf)
+                fmod = np.fmod(finf, fone)
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}')
+                rem = np.remainder(finf, fzer)
+                fmod = np.fmod(finf, fzer)
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}')
+                rem = np.remainder(fone, fnan)
+                fmod = np.fmod(fone, fnan)
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}')
+                rem = np.remainder(fnan, fzer)
+                fmod = np.fmod(fnan, fzer)
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                assert_(np.isnan(fmod), f'dt: {dt}, fmod: {rem}')
+                rem = np.remainder(fnan, fone)
+                fmod = np.fmod(fnan, fone)
+                assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}')
+                assert_(np.isnan(fmod), f'dt: {dt}, fmod: {rem}')
+
+
+class TestDivisionIntegerOverflowsAndDivideByZero:
+    result_type = namedtuple('result_type',
+            ['nocast', 'casted'])
+    helper_lambdas = {
+        'zero': lambda dtype: 0,
+        'min': lambda dtype: np.iinfo(dtype).min,
+        'neg_min': lambda dtype: -np.iinfo(dtype).min,
+        'min-zero': lambda dtype: (np.iinfo(dtype).min, 0),
+        'neg_min-zero': lambda dtype: (-np.iinfo(dtype).min, 0),
+    }
+    overflow_results = {
+        np.remainder: result_type(
+            helper_lambdas['zero'], helper_lambdas['zero']),
+        np.fmod: result_type(
+            helper_lambdas['zero'], helper_lambdas['zero']),
+        operator.mod: result_type(
+            helper_lambdas['zero'], helper_lambdas['zero']),
+        operator.floordiv: result_type(
+            helper_lambdas['min'], helper_lambdas['neg_min']),
+        np.floor_divide: result_type(
+            helper_lambdas['min'], helper_lambdas['neg_min']),
+        np.divmod: result_type(
+            helper_lambdas['min-zero'], helper_lambdas['neg_min-zero'])
+    }
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("dtype", np.typecodes["Integer"])
+    def test_signed_division_overflow(self, dtype):
+        to_check = interesting_binop_operands(np.iinfo(dtype).min, -1, dtype)
+        for op1, op2, extractor, operand_identifier in to_check:
+            with pytest.warns(RuntimeWarning, match="overflow encountered"):
+                res = op1 // op2
+
+            assert res.dtype == op1.dtype
+            assert extractor(res) == np.iinfo(op1.dtype).min
+
+            # Remainder is well defined though, and does not warn:
+            res = op1 % op2
+            assert res.dtype == op1.dtype
+            assert extractor(res) == 0
+            # Check fmod as well:
+            res = np.fmod(op1, op2)
+            assert extractor(res) == 0
+
+            # Divmod warns for the division part:
+            with pytest.warns(RuntimeWarning, match="overflow encountered"):
+                res1, res2 = np.divmod(op1, op2)
+
+            assert res1.dtype == res2.dtype == op1.dtype
+            assert extractor(res1) == np.iinfo(op1.dtype).min
+            assert extractor(res2) == 0
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+    def test_divide_by_zero(self, dtype):
+        # Note that the return value cannot be well defined here, but NumPy
+        # currently uses 0 consistently.  This could be changed.
+        to_check = interesting_binop_operands(1, 0, dtype)
+        for op1, op2, extractor, operand_identifier in to_check:
+            with pytest.warns(RuntimeWarning, match="divide by zero"):
+                res = op1 // op2
+
+            assert res.dtype == op1.dtype
+            assert extractor(res) == 0
+
+            with pytest.warns(RuntimeWarning, match="divide by zero"):
+                res1, res2 = np.divmod(op1, op2)
+
+            assert res1.dtype == res2.dtype == op1.dtype
+            assert extractor(res1) == 0
+            assert extractor(res2) == 0
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("dividend_dtype", sctypes['int'])
+    @pytest.mark.parametrize("divisor_dtype", sctypes['int'])
+    @pytest.mark.parametrize("operation",
+            [np.remainder, np.fmod, np.divmod, np.floor_divide,
+             operator.mod, operator.floordiv])
+    @np.errstate(divide='warn', over='warn')
+    def test_overflows(self, dividend_dtype, divisor_dtype, operation):
+        # SIMD tries to perform the operation on as many elements as possible
+        # that is a multiple of the register's size. We resort to the
+        # default implementation for the leftover elements.
+        # We try to cover all paths here.
+        arrays = [np.array([np.iinfo(dividend_dtype).min] * i,
+                           dtype=dividend_dtype) for i in range(1, 129)]
+        divisor = np.array([-1], dtype=divisor_dtype)
+        # If dividend is a larger type than the divisor (`else` case),
+        # then, result will be a larger type than dividend and will not
+        # result in an overflow for `divmod` and `floor_divide`.
+        if np.dtype(dividend_dtype).itemsize >= np.dtype(
+                divisor_dtype).itemsize and operation in (
+                        np.divmod, np.floor_divide, operator.floordiv):
+            with pytest.warns(
+                    RuntimeWarning,
+                    match="overflow encountered in"):
+                result = operation(
+                            dividend_dtype(np.iinfo(dividend_dtype).min),
+                            divisor_dtype(-1)
+                        )
+                assert result == self.overflow_results[operation].nocast(
+                        dividend_dtype)
+
+            # Arrays
+            for a in arrays:
+                # In case of divmod, we need to flatten the result
+                # column first as we get a column vector of quotient and
+                # remainder and a normal flatten of the expected result.
+                with pytest.warns(
+                        RuntimeWarning,
+                        match="overflow encountered in"):
+                    result = np.array(operation(a, divisor)).flatten('f')
+                    expected_array = np.array(
+                            [self.overflow_results[operation].nocast(
+                                dividend_dtype)] * len(a)).flatten()
+                    assert_array_equal(result, expected_array)
+        else:
+            # Scalars
+            result = operation(
+                        dividend_dtype(np.iinfo(dividend_dtype).min),
+                        divisor_dtype(-1)
+                    )
+            assert result == self.overflow_results[operation].casted(
+                    dividend_dtype)
+
+            # Arrays
+            for a in arrays:
+                # See above comment on flatten
+                result = np.array(operation(a, divisor)).flatten('f')
+                expected_array = np.array(
+                        [self.overflow_results[operation].casted(
+                            dividend_dtype)] * len(a)).flatten()
+                assert_array_equal(result, expected_array)
+
+
+class TestCbrt:
+    def test_cbrt_scalar(self):
+        assert_almost_equal((np.cbrt(np.float32(-2.5)**3)), -2.5)
+
+    def test_cbrt(self):
+        x = np.array([1., 2., -3., np.inf, -np.inf])
+        assert_almost_equal(np.cbrt(x**3), x)
+
+        assert_(np.isnan(np.cbrt(np.nan)))
+        assert_equal(np.cbrt(np.inf), np.inf)
+        assert_equal(np.cbrt(-np.inf), -np.inf)
+
+
+class TestPower:
+    def test_power_float(self):
+        x = np.array([1., 2., 3.])
+        assert_equal(x**0, [1., 1., 1.])
+        assert_equal(x**1, x)
+        assert_equal(x**2, [1., 4., 9.])
+        y = x.copy()
+        y **= 2
+        assert_equal(y, [1., 4., 9.])
+        assert_almost_equal(x**(-1), [1., 0.5, 1. / 3])
+        assert_almost_equal(x**(0.5), [1., ncu.sqrt(2), ncu.sqrt(3)])
+
+        for out, inp, msg in _gen_alignment_data(dtype=np.float32,
+                                                 type='unary',
+                                                 max_size=11):
+            exp = [ncu.sqrt(i) for i in inp]
+            assert_almost_equal(inp**(0.5), exp, err_msg=msg)
+            np.sqrt(inp, out=out)
+            assert_equal(out, exp, err_msg=msg)
+
+        for out, inp, msg in _gen_alignment_data(dtype=np.float64,
+                                                 type='unary',
+                                                 max_size=7):
+            exp = [ncu.sqrt(i) for i in inp]
+            assert_almost_equal(inp**(0.5), exp, err_msg=msg)
+            np.sqrt(inp, out=out)
+            assert_equal(out, exp, err_msg=msg)
+
+    def test_power_complex(self):
+        x = np.array([1 + 2j, 2 + 3j, 3 + 4j])
+        assert_equal(x**0, [1., 1., 1.])
+        assert_equal(x**1, x)
+        assert_almost_equal(x**2, [-3 + 4j, -5 + 12j, -7 + 24j])
+        assert_almost_equal(x**3, [(1 + 2j)**3, (2 + 3j)**3, (3 + 4j)**3])
+        assert_almost_equal(x**4, [(1 + 2j)**4, (2 + 3j)**4, (3 + 4j)**4])
+        assert_almost_equal(x**(-1), [1 / (1 + 2j), 1 / (2 + 3j), 1 / (3 + 4j)])
+        assert_almost_equal(x**(-2), [1 / (1 + 2j)**2, 1 / (2 + 3j)**2, 1 / (3 + 4j)**2])
+        assert_almost_equal(x**(-3), [(-11 + 2j) / 125, (-46 - 9j) / 2197,
+                                      (-117 - 44j) / 15625])
+        assert_almost_equal(x**(0.5), [ncu.sqrt(1 + 2j), ncu.sqrt(2 + 3j),
+                                       ncu.sqrt(3 + 4j)])
+        norm = 1. / ((x**14)[0])
+        assert_almost_equal(x**14 * norm,
+                [i * norm for i in [-76443 + 16124j, 23161315 + 58317492j,
+                                    5583548873 + 2465133864j]])
+
+        # Ticket #836
+        def assert_complex_equal(x, y):
+            assert_array_equal(x.real, y.real)
+            assert_array_equal(x.imag, y.imag)
+
+        for z in [complex(0, np.inf), complex(1, np.inf)]:
+            z = np.array([z], dtype=np.complex128)
+            with np.errstate(invalid="ignore"):
+                assert_complex_equal(z**1, z)
+                assert_complex_equal(z**2, z * z)
+                assert_complex_equal(z**3, z * z * z)
+
+    def test_power_zero(self):
+        # ticket #1271
+        zero = np.array([0j])
+        one = np.array([1 + 0j])
+        cnan = np.array([complex(np.nan, np.nan)])
+        # FIXME cinf not tested.
+        #cinf = np.array([complex(np.inf, 0)])
+
+        def assert_complex_equal(x, y):
+            x, y = np.asarray(x), np.asarray(y)
+            assert_array_equal(x.real, y.real)
+            assert_array_equal(x.imag, y.imag)
+
+        # positive powers
+        for p in [0.33, 0.5, 1, 1.5, 2, 3, 4, 5, 6.6]:
+            assert_complex_equal(np.power(zero, p), zero)
+
+        # zero power
+        assert_complex_equal(np.power(zero, 0), one)
+        with np.errstate(invalid="ignore"):
+            assert_complex_equal(np.power(zero, 0 + 1j), cnan)
+
+            # negative power
+            for p in [0.33, 0.5, 1, 1.5, 2, 3, 4, 5, 6.6]:
+                assert_complex_equal(np.power(zero, -p), cnan)
+            assert_complex_equal(np.power(zero, -1 + 0.2j), cnan)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_zero_power_nonzero(self):
+        # Testing 0^{Non-zero} issue 18378
+        zero = np.array([0.0 + 0.0j])
+        cnan = np.array([complex(np.nan, np.nan)])
+
+        def assert_complex_equal(x, y):
+            assert_array_equal(x.real, y.real)
+            assert_array_equal(x.imag, y.imag)
+
+        # Complex powers with positive real part will not generate a warning
+        assert_complex_equal(np.power(zero, 1 + 4j), zero)
+        assert_complex_equal(np.power(zero, 2 - 3j), zero)
+        # Testing zero values when real part is greater than zero
+        assert_complex_equal(np.power(zero, 1 + 1j), zero)
+        assert_complex_equal(np.power(zero, 1 + 0j), zero)
+        assert_complex_equal(np.power(zero, 1 - 1j), zero)
+        # Complex powers will negative real part or 0 (provided imaginary
+        # part is not zero) will generate a NAN and hence a RUNTIME warning
+        with pytest.warns(expected_warning=RuntimeWarning) as r:
+            assert_complex_equal(np.power(zero, -1 + 1j), cnan)
+            assert_complex_equal(np.power(zero, -2 - 3j), cnan)
+            assert_complex_equal(np.power(zero, -7 + 0j), cnan)
+            assert_complex_equal(np.power(zero, 0 + 1j), cnan)
+            assert_complex_equal(np.power(zero, 0 - 1j), cnan)
+        assert len(r) == 5
+
+    def test_fast_power(self):
+        x = np.array([1, 2, 3], np.int16)
+        res = x**2.0
+        assert_((x**2.00001).dtype is res.dtype)
+        assert_array_equal(res, [1, 4, 9])
+        # check the inplace operation on the casted copy doesn't mess with x
+        assert_(not np.may_share_memory(res, x))
+        assert_array_equal(x, [1, 2, 3])
+
+        # Check that the fast path ignores 1-element not 0-d arrays
+        res = x ** np.array([[[2]]])
+        assert_equal(res.shape, (1, 1, 3))
+
+    def test_integer_power(self):
+        a = np.array([15, 15], 'i8')
+        b = np.power(a, a)
+        assert_equal(b, [437893890380859375, 437893890380859375])
+
+    def test_integer_power_with_integer_zero_exponent(self):
+        dtypes = np.typecodes['Integer']
+        for dt in dtypes:
+            arr = np.arange(-10, 10, dtype=dt)
+            assert_equal(np.power(arr, 0), np.ones_like(arr))
+
+        dtypes = np.typecodes['UnsignedInteger']
+        for dt in dtypes:
+            arr = np.arange(10, dtype=dt)
+            assert_equal(np.power(arr, 0), np.ones_like(arr))
+
+    def test_integer_power_of_1(self):
+        dtypes = np.typecodes['AllInteger']
+        for dt in dtypes:
+            arr = np.arange(10, dtype=dt)
+            assert_equal(np.power(1, arr), np.ones_like(arr))
+
+    def test_integer_power_of_zero(self):
+        dtypes = np.typecodes['AllInteger']
+        for dt in dtypes:
+            arr = np.arange(1, 10, dtype=dt)
+            assert_equal(np.power(0, arr), np.zeros_like(arr))
+
+    def test_integer_to_negative_power(self):
+        dtypes = np.typecodes['Integer']
+        for dt in dtypes:
+            a = np.array([0, 1, 2, 3], dtype=dt)
+            b = np.array([0, 1, 2, -3], dtype=dt)
+            one = np.array(1, dtype=dt)
+            minusone = np.array(-1, dtype=dt)
+            assert_raises(ValueError, np.power, a, b)
+            assert_raises(ValueError, np.power, a, minusone)
+            assert_raises(ValueError, np.power, one, b)
+            assert_raises(ValueError, np.power, one, minusone)
+
+    def test_float_to_inf_power(self):
+        for dt in [np.float32, np.float64]:
+            a = np.array([1, 1, 2, 2, -2, -2, np.inf, -np.inf], dt)
+            b = np.array([np.inf, -np.inf, np.inf, -np.inf,
+                                np.inf, -np.inf, np.inf, -np.inf], dt)
+            r = np.array([1, 1, np.inf, 0, np.inf, 0, np.inf, 0], dt)
+            assert_equal(np.power(a, b), r)
+
+    def test_power_fast_paths(self):
+        # gh-26055
+        for dt in [np.float32, np.float64]:
+            a = np.array([0, 1.1, 2, 12e12, -10., np.inf, -np.inf], dt)
+            expected = np.array([0.0, 1.21, 4., 1.44e+26, 100, np.inf, np.inf])
+            result = np.power(a, 2.)
+            assert_array_max_ulp(result, expected.astype(dt), maxulp=1)
+
+            a = np.array([0, 1.1, 2, 12e12], dt)
+            expected = np.sqrt(a).astype(dt)
+            result = np.power(a, 0.5)
+            assert_array_max_ulp(result, expected, maxulp=1)
+
+
+class TestFloat_power:
+    def test_type_conversion(self):
+        arg_type = '?bhilBHILefdgFDG'
+        res_type = 'ddddddddddddgDDG'
+        for dtin, dtout in zip(arg_type, res_type):
+            msg = f"dtin: {dtin}, dtout: {dtout}"
+            arg = np.ones(1, dtype=dtin)
+            res = np.float_power(arg, arg)
+            assert_(res.dtype.name == np.dtype(dtout).name, msg)
+
+
+class TestLog2:
+    @pytest.mark.parametrize('dt', ['f', 'd', 'g'])
+    def test_log2_values(self, dt):
+        x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024]
+        y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+        xf = np.array(x, dtype=dt)
+        yf = np.array(y, dtype=dt)
+        assert_almost_equal(np.log2(xf), yf)
+
+    @pytest.mark.parametrize("i", range(1, 65))
+    def test_log2_ints(self, i):
+        # a good log2 implementation should provide this,
+        # might fail on OS with bad libm
+        v = np.log2(2.**i)
+        assert_equal(v, float(i), err_msg='at exponent %d' % i)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_log2_special(self):
+        assert_equal(np.log2(1.), 0.)
+        assert_equal(np.log2(np.inf), np.inf)
+        assert_(np.isnan(np.log2(np.nan)))
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_(np.isnan(np.log2(-1.)))
+            assert_(np.isnan(np.log2(-np.inf)))
+            assert_equal(np.log2(0.), -np.inf)
+            assert_(w[0].category is RuntimeWarning)
+            assert_(w[1].category is RuntimeWarning)
+            assert_(w[2].category is RuntimeWarning)
+
+
+class TestExp2:
+    def test_exp2_values(self):
+        x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024]
+        y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+        for dt in ['f', 'd', 'g']:
+            xf = np.array(x, dtype=dt)
+            yf = np.array(y, dtype=dt)
+            assert_almost_equal(np.exp2(yf), xf)
+
+
+class TestLogAddExp2(_FilterInvalids):
+    # Need test for intermediate precisions
+    def test_logaddexp2_values(self):
+        x = [1, 2, 3, 4, 5]
+        y = [5, 4, 3, 2, 1]
+        z = [6, 6, 6, 6, 6]
+        for dt, dec_ in zip(['f', 'd', 'g'], [6, 15, 15]):
+            xf = np.log2(np.array(x, dtype=dt))
+            yf = np.log2(np.array(y, dtype=dt))
+            zf = np.log2(np.array(z, dtype=dt))
+            assert_almost_equal(np.logaddexp2(xf, yf), zf, decimal=dec_)
+
+    def test_logaddexp2_range(self):
+        x = [1000000, -1000000, 1000200, -1000200]
+        y = [1000200, -1000200, 1000000, -1000000]
+        z = [1000200, -1000000, 1000200, -1000000]
+        for dt in ['f', 'd', 'g']:
+            logxf = np.array(x, dtype=dt)
+            logyf = np.array(y, dtype=dt)
+            logzf = np.array(z, dtype=dt)
+            assert_almost_equal(np.logaddexp2(logxf, logyf), logzf)
+
+    def test_inf(self):
+        inf = np.inf
+        x = [inf, -inf,  inf, -inf, inf, 1,  -inf,  1]    # noqa: E221
+        y = [inf,  inf, -inf, -inf, 1,   inf, 1,   -inf]  # noqa: E221
+        z = [inf,  inf,  inf, -inf, inf, inf, 1,    1]
+        with np.errstate(invalid='raise'):
+            for dt in ['f', 'd', 'g']:
+                logxf = np.array(x, dtype=dt)
+                logyf = np.array(y, dtype=dt)
+                logzf = np.array(z, dtype=dt)
+                assert_equal(np.logaddexp2(logxf, logyf), logzf)
+
+    def test_nan(self):
+        assert_(np.isnan(np.logaddexp2(np.nan, np.inf)))
+        assert_(np.isnan(np.logaddexp2(np.inf, np.nan)))
+        assert_(np.isnan(np.logaddexp2(np.nan, 0)))
+        assert_(np.isnan(np.logaddexp2(0, np.nan)))
+        assert_(np.isnan(np.logaddexp2(np.nan, np.nan)))
+
+    def test_reduce(self):
+        assert_equal(np.logaddexp2.identity, -np.inf)
+        assert_equal(np.logaddexp2.reduce([]), -np.inf)
+        assert_equal(np.logaddexp2.reduce([-np.inf]), -np.inf)
+        assert_equal(np.logaddexp2.reduce([-np.inf, 0]), 0)
+
+
+class TestLog:
+    def test_log_values(self):
+        x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024]
+        y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+        for dt in ['f', 'd', 'g']:
+            log2_ = 0.69314718055994530943
+            xf = np.array(x, dtype=dt)
+            yf = np.array(y, dtype=dt) * log2_
+            assert_almost_equal(np.log(xf), yf)
+
+        # test aliasing(issue #17761)
+        x = np.array([2, 0.937500, 3, 0.947500, 1.054697])
+        xf = np.log(x)
+        assert_almost_equal(np.log(x, out=x), xf)
+
+    def test_log_values_maxofdtype(self):
+        # test log() of max for dtype does not raise
+        dtypes = [np.float32, np.float64]
+        # This is failing at least on linux aarch64 (see gh-25460), and on most
+        # other non x86-64 platforms checking `longdouble` isn't too useful as
+        # it's an alias for float64.
+        if platform.machine() == 'x86_64':
+            dtypes += [np.longdouble]
+
+        for dt in dtypes:
+            with np.errstate(all='raise'):
+                x = np.finfo(dt).max
+                np.log(x)
+
+    def test_log_strides(self):
+        np.random.seed(42)
+        strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4])
+        sizes = np.arange(2, 100)
+        for ii in sizes:
+            x_f64 = np.float64(np.random.uniform(low=0.01, high=100.0, size=ii))
+            x_special = x_f64.copy()
+            x_special[3:-1:4] = 1.0
+            y_true = np.log(x_f64)
+            y_special = np.log(x_special)
+            for jj in strides:
+                assert_array_almost_equal_nulp(np.log(x_f64[::jj]), y_true[::jj], nulp=2)
+                assert_array_almost_equal_nulp(np.log(x_special[::jj]), y_special[::jj], nulp=2)
+
+    # Reference values were computed with mpmath, with mp.dps = 200.
+    @pytest.mark.parametrize(
+        'z, wref',
+        [(1 + 1e-12j, 5e-25 + 1e-12j),
+         (1.000000000000001 + 3e-08j,
+          1.5602230246251546e-15 + 2.999999999999996e-08j),
+         (0.9999995000000417 + 0.0009999998333333417j,
+          7.831475869017683e-18 + 0.001j),
+         (0.9999999999999996 + 2.999999999999999e-08j,
+          5.9107901499372034e-18 + 3e-08j),
+         (0.99995000042 - 0.009999833j,
+          -7.015159763822903e-15 - 0.009999999665816696j)],
+    )
+    def test_log_precision_float64(self, z, wref):
+        w = np.log(z)
+        assert_allclose(w, wref, rtol=1e-15)
+
+    # Reference values were computed with mpmath, with mp.dps = 200.
+    @pytest.mark.parametrize(
+        'z, wref',
+        [(np.complex64(1.0 + 3e-6j), np.complex64(4.5e-12 + 3e-06j)),
+         (np.complex64(1.0 - 2e-5j), np.complex64(1.9999999e-10 - 2e-5j)),
+         (np.complex64(0.9999999 + 1e-06j),
+          np.complex64(-1.192088e-07 + 1.0000001e-06j))],
+    )
+    def test_log_precision_float32(self, z, wref):
+        w = np.log(z)
+        assert_allclose(w, wref, rtol=1e-6)
+
+
+class TestExp:
+    def test_exp_values(self):
+        x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024]
+        y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+        for dt in ['f', 'd', 'g']:
+            log2_ = 0.69314718055994530943
+            xf = np.array(x, dtype=dt)
+            yf = np.array(y, dtype=dt) * log2_
+            assert_almost_equal(np.exp(yf), xf)
+
+    def test_exp_strides(self):
+        np.random.seed(42)
+        strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4])
+        sizes = np.arange(2, 100)
+        for ii in sizes:
+            x_f64 = np.float64(np.random.uniform(low=0.01, high=709.1, size=ii))
+            y_true = np.exp(x_f64)
+            for jj in strides:
+                assert_array_almost_equal_nulp(np.exp(x_f64[::jj]), y_true[::jj], nulp=2)
+
+class TestSpecialFloats:
+    def test_exp_values(self):
+        with np.errstate(under='raise', over='raise'):
+            x = [np.nan,  np.nan, np.inf, 0.]
+            y = [np.nan, -np.nan, np.inf, -np.inf]
+            for dt in ['e', 'f', 'd', 'g']:
+                xf = np.array(x, dtype=dt)
+                yf = np.array(y, dtype=dt)
+                assert_equal(np.exp(yf), xf)
+
+    # See: https://github.com/numpy/numpy/issues/19192
+    @pytest.mark.xfail(
+        _glibc_older_than("2.17"),
+        reason="Older glibc versions may not raise appropriate FP exceptions"
+    )
+    def test_exp_exceptions(self):
+        with np.errstate(over='raise'):
+            assert_raises(FloatingPointError, np.exp, np.float16(11.0899))
+            assert_raises(FloatingPointError, np.exp, np.float32(100.))
+            assert_raises(FloatingPointError, np.exp, np.float32(1E19))
+            assert_raises(FloatingPointError, np.exp, np.float64(800.))
+            assert_raises(FloatingPointError, np.exp, np.float64(1E19))
+
+        with np.errstate(under='raise'):
+            assert_raises(FloatingPointError, np.exp, np.float16(-17.5))
+            assert_raises(FloatingPointError, np.exp, np.float32(-1000.))
+            assert_raises(FloatingPointError, np.exp, np.float32(-1E19))
+            assert_raises(FloatingPointError, np.exp, np.float64(-1000.))
+            assert_raises(FloatingPointError, np.exp, np.float64(-1E19))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_log_values(self):
+        with np.errstate(all='ignore'):
+            x = [np.nan, np.nan, np.inf, np.nan, -np.inf, np.nan]
+            y = [np.nan, -np.nan, np.inf, -np.inf, 0.0, -1.0]
+            y1p = [np.nan, -np.nan, np.inf, -np.inf, -1.0, -2.0]
+            for dt in ['e', 'f', 'd', 'g']:
+                xf = np.array(x, dtype=dt)
+                yf = np.array(y, dtype=dt)
+                yf1p = np.array(y1p, dtype=dt)
+                assert_equal(np.log(yf), xf)
+                assert_equal(np.log2(yf), xf)
+                assert_equal(np.log10(yf), xf)
+                assert_equal(np.log1p(yf1p), xf)
+
+        with np.errstate(divide='raise'):
+            for dt in ['e', 'f', 'd']:
+                assert_raises(FloatingPointError, np.log,
+                              np.array(0.0, dtype=dt))
+                assert_raises(FloatingPointError, np.log2,
+                              np.array(0.0, dtype=dt))
+                assert_raises(FloatingPointError, np.log10,
+                              np.array(0.0, dtype=dt))
+                assert_raises(FloatingPointError, np.log1p,
+                              np.array(-1.0, dtype=dt))
+
+        with np.errstate(invalid='raise'):
+            for dt in ['e', 'f', 'd']:
+                assert_raises(FloatingPointError, np.log,
+                              np.array(-np.inf, dtype=dt))
+                assert_raises(FloatingPointError, np.log,
+                              np.array(-1.0, dtype=dt))
+                assert_raises(FloatingPointError, np.log2,
+                              np.array(-np.inf, dtype=dt))
+                assert_raises(FloatingPointError, np.log2,
+                              np.array(-1.0, dtype=dt))
+                assert_raises(FloatingPointError, np.log10,
+                              np.array(-np.inf, dtype=dt))
+                assert_raises(FloatingPointError, np.log10,
+                              np.array(-1.0, dtype=dt))
+                assert_raises(FloatingPointError, np.log1p,
+                              np.array(-np.inf, dtype=dt))
+                assert_raises(FloatingPointError, np.log1p,
+                              np.array(-2.0, dtype=dt))
+
+        # See https://github.com/numpy/numpy/issues/18005
+        with assert_no_warnings():
+            a = np.array(1e9, dtype='float32')
+            np.log(a)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize('dtype', ['e', 'f', 'd', 'g'])
+    def test_sincos_values(self, dtype):
+        with np.errstate(all='ignore'):
+            x = [np.nan, np.nan, np.nan, np.nan]
+            y = [np.nan, -np.nan, np.inf, -np.inf]
+            xf = np.array(x, dtype=dtype)
+            yf = np.array(y, dtype=dtype)
+            assert_equal(np.sin(yf), xf)
+            assert_equal(np.cos(yf), xf)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.xfail(
+        sys.platform.startswith("darwin"),
+        reason="underflow is triggered for scalar 'sin'"
+    )
+    def test_sincos_underflow(self):
+        with np.errstate(under='raise'):
+            underflow_trigger = np.array(
+                float.fromhex("0x1.f37f47a03f82ap-511"),
+                dtype=np.float64
+            )
+            np.sin(underflow_trigger)
+            np.cos(underflow_trigger)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize('callable', [np.sin, np.cos])
+    @pytest.mark.parametrize('dtype', ['e', 'f', 'd'])
+    @pytest.mark.parametrize('value', [np.inf, -np.inf])
+    def test_sincos_errors(self, callable, dtype, value):
+        with np.errstate(invalid='raise'):
+            assert_raises(FloatingPointError, callable,
+                np.array([value], dtype=dtype))
+
+    @pytest.mark.parametrize('callable', [np.sin, np.cos])
+    @pytest.mark.parametrize('dtype', ['f', 'd'])
+    @pytest.mark.parametrize('stride', [-1, 1, 2, 4, 5])
+    def test_sincos_overlaps(self, callable, dtype, stride):
+        N = 100
+        M = N // abs(stride)
+        rng = np.random.default_rng(42)
+        x = rng.standard_normal(N, dtype)
+        y = callable(x[::stride])
+        callable(x[::stride], out=x[:M])
+        assert_equal(x[:M], y)
+
+    @pytest.mark.parametrize('dt', ['e', 'f', 'd', 'g'])
+    def test_sqrt_values(self, dt):
+        with np.errstate(all='ignore'):
+            x = [np.nan, np.nan, np.inf, np.nan, 0.]
+            y = [np.nan, -np.nan, np.inf, -np.inf, 0.]
+            xf = np.array(x, dtype=dt)
+            yf = np.array(y, dtype=dt)
+            assert_equal(np.sqrt(yf), xf)
+
+        # with np.errstate(invalid='raise'):
+        #     assert_raises(
+        #         FloatingPointError, np.sqrt, np.array(-100., dtype=dt)
+        #     )
+
+    def test_abs_values(self):
+        x = [np.nan,  np.nan, np.inf, np.inf, 0., 0., 1.0, 1.0]
+        y = [np.nan, -np.nan, np.inf, -np.inf, 0., -0., -1.0, 1.0]
+        for dt in ['e', 'f', 'd', 'g']:
+            xf = np.array(x, dtype=dt)
+            yf = np.array(y, dtype=dt)
+            assert_equal(np.abs(yf), xf)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_square_values(self):
+        x = [np.nan,  np.nan, np.inf, np.inf]
+        y = [np.nan, -np.nan, np.inf, -np.inf]
+        with np.errstate(all='ignore'):
+            for dt in ['e', 'f', 'd', 'g']:
+                xf = np.array(x, dtype=dt)
+                yf = np.array(y, dtype=dt)
+                assert_equal(np.square(yf), xf)
+
+        with np.errstate(over='raise'):
+            assert_raises(FloatingPointError, np.square,
+                          np.array(1E3, dtype='e'))
+            assert_raises(FloatingPointError, np.square,
+                          np.array(1E32, dtype='f'))
+            assert_raises(FloatingPointError, np.square,
+                          np.array(1E200, dtype='d'))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_reciprocal_values(self):
+        with np.errstate(all='ignore'):
+            x = [np.nan,  np.nan, 0.0, -0.0, np.inf, -np.inf]
+            y = [np.nan, -np.nan, np.inf, -np.inf, 0., -0.]
+            for dt in ['e', 'f', 'd', 'g']:
+                xf = np.array(x, dtype=dt)
+                yf = np.array(y, dtype=dt)
+                assert_equal(np.reciprocal(yf), xf)
+
+        with np.errstate(divide='raise'):
+            for dt in ['e', 'f', 'd', 'g']:
+                assert_raises(FloatingPointError, np.reciprocal,
+                              np.array(-0.0, dtype=dt))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_tan(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan, 0.0, -0.0, np.inf, -np.inf]
+            out = [np.nan, np.nan, 0.0, -0.0, np.nan, np.nan]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.tan(in_arr), out_arr)
+
+        with np.errstate(invalid='raise'):
+            for dt in ['e', 'f', 'd']:
+                assert_raises(FloatingPointError, np.tan,
+                              np.array(np.inf, dtype=dt))
+                assert_raises(FloatingPointError, np.tan,
+                              np.array(-np.inf, dtype=dt))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_arcsincos(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan, np.inf, -np.inf]
+            out = [np.nan, np.nan, np.nan, np.nan]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.arcsin(in_arr), out_arr)
+                assert_equal(np.arccos(in_arr), out_arr)
+
+        for callable in [np.arcsin, np.arccos]:
+            for value in [np.inf, -np.inf, 2.0, -2.0]:
+                for dt in ['e', 'f', 'd']:
+                    with np.errstate(invalid='raise'):
+                        assert_raises(FloatingPointError, callable,
+                                      np.array(value, dtype=dt))
+
+    def test_arctan(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan]
+            out = [np.nan, np.nan]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.arctan(in_arr), out_arr)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_sinh(self):
+        in_ = [np.nan, -np.nan, np.inf, -np.inf]
+        out = [np.nan, np.nan, np.inf, -np.inf]
+        for dt in ['e', 'f', 'd']:
+            in_arr = np.array(in_, dtype=dt)
+            out_arr = np.array(out, dtype=dt)
+            assert_equal(np.sinh(in_arr), out_arr)
+
+        with np.errstate(over='raise'):
+            assert_raises(FloatingPointError, np.sinh,
+                          np.array(12.0, dtype='e'))
+            assert_raises(FloatingPointError, np.sinh,
+                          np.array(120.0, dtype='f'))
+            assert_raises(FloatingPointError, np.sinh,
+                          np.array(1200.0, dtype='d'))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.skipif('bsd' in sys.platform,
+            reason="fallback implementation may not raise, see gh-2487")
+    def test_cosh(self):
+        in_ = [np.nan, -np.nan, np.inf, -np.inf]
+        out = [np.nan, np.nan, np.inf, np.inf]
+        for dt in ['e', 'f', 'd']:
+            in_arr = np.array(in_, dtype=dt)
+            out_arr = np.array(out, dtype=dt)
+            assert_equal(np.cosh(in_arr), out_arr)
+
+        with np.errstate(over='raise'):
+            assert_raises(FloatingPointError, np.cosh,
+                          np.array(12.0, dtype='e'))
+            assert_raises(FloatingPointError, np.cosh,
+                          np.array(120.0, dtype='f'))
+            assert_raises(FloatingPointError, np.cosh,
+                          np.array(1200.0, dtype='d'))
+
+    def test_tanh(self):
+        in_ = [np.nan, -np.nan, np.inf, -np.inf]
+        out = [np.nan, np.nan, 1.0, -1.0]
+        for dt in ['e', 'f', 'd']:
+            in_arr = np.array(in_, dtype=dt)
+            out_arr = np.array(out, dtype=dt)
+            assert_array_max_ulp(np.tanh(in_arr), out_arr, 3)
+
+    def test_arcsinh(self):
+        in_ = [np.nan, -np.nan, np.inf, -np.inf]
+        out = [np.nan, np.nan, np.inf, -np.inf]
+        for dt in ['e', 'f', 'd']:
+            in_arr = np.array(in_, dtype=dt)
+            out_arr = np.array(out, dtype=dt)
+            assert_equal(np.arcsinh(in_arr), out_arr)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_arccosh(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan, np.inf, -np.inf, 1.0, 0.0]
+            out = [np.nan, np.nan, np.inf, np.nan, 0.0, np.nan]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.arccosh(in_arr), out_arr)
+
+        for value in [0.0, -np.inf]:
+            with np.errstate(invalid='raise'):
+                for dt in ['e', 'f', 'd']:
+                    assert_raises(FloatingPointError, np.arccosh,
+                                  np.array(value, dtype=dt))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_arctanh(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan, np.inf, -np.inf, 1.0, -1.0, 2.0]
+            out = [np.nan, np.nan, np.nan, np.nan, np.inf, -np.inf, np.nan]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.arctanh(in_arr), out_arr)
+
+        for value in [1.01, np.inf, -np.inf, 1.0, -1.0]:
+            with np.errstate(invalid='raise', divide='raise'):
+                for dt in ['e', 'f', 'd']:
+                    assert_raises(FloatingPointError, np.arctanh,
+                                  np.array(value, dtype=dt))
+
+        # Make sure glibc < 2.18 atanh is not used, issue 25087
+        assert np.signbit(np.arctanh(-1j).real)
+
+    # See: https://github.com/numpy/numpy/issues/20448
+    @pytest.mark.xfail(
+        _glibc_older_than("2.17"),
+        reason="Older glibc versions may not raise appropriate FP exceptions"
+    )
+    def test_exp2(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan, np.inf, -np.inf]
+            out = [np.nan, np.nan, np.inf, 0.0]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.exp2(in_arr), out_arr)
+
+        for value in [2000.0, -2000.0]:
+            with np.errstate(over='raise', under='raise'):
+                for dt in ['e', 'f', 'd']:
+                    assert_raises(FloatingPointError, np.exp2,
+                                  np.array(value, dtype=dt))
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_expm1(self):
+        with np.errstate(all='ignore'):
+            in_ = [np.nan, -np.nan, np.inf, -np.inf]
+            out = [np.nan, np.nan, np.inf, -1.0]
+            for dt in ['e', 'f', 'd']:
+                in_arr = np.array(in_, dtype=dt)
+                out_arr = np.array(out, dtype=dt)
+                assert_equal(np.expm1(in_arr), out_arr)
+
+        for value in [200.0, 2000.0]:
+            with np.errstate(over='raise'):
+                for dt in ['e', 'f']:
+                    assert_raises(FloatingPointError, np.expm1,
+                                  np.array(value, dtype=dt))
+
+    # test to ensure no spurious FP exceptions are raised due to SIMD
+    INF_INVALID_ERR = [
+        np.cos, np.sin, np.tan, np.arccos, np.arcsin, np.spacing, np.arctanh
+    ]
+    NEG_INVALID_ERR = [
+        np.log, np.log2, np.log10, np.log1p, np.sqrt, np.arccosh,
+        np.arctanh
+    ]
+    ONE_INVALID_ERR = [
+        np.arctanh,
+    ]
+    LTONE_INVALID_ERR = [
+        np.arccosh,
+    ]
+    BYZERO_ERR = [
+        np.log, np.log2, np.log10, np.reciprocal, np.arccosh
+    ]
+
+    @pytest.mark.parametrize("ufunc", UFUNCS_UNARY_FP)
+    @pytest.mark.parametrize("dtype", ('e', 'f', 'd'))
+    @pytest.mark.parametrize("data, escape", (
+        ([0.03], LTONE_INVALID_ERR),
+        ([0.03] * 32, LTONE_INVALID_ERR),
+        # neg
+        ([-1.0], NEG_INVALID_ERR),
+        ([-1.0] * 32, NEG_INVALID_ERR),
+        # flat
+        ([1.0], ONE_INVALID_ERR),
+        ([1.0] * 32, ONE_INVALID_ERR),
+        # zero
+        ([0.0], BYZERO_ERR),
+        ([0.0] * 32, BYZERO_ERR),
+        ([-0.0], BYZERO_ERR),
+        ([-0.0] * 32, BYZERO_ERR),
+        # nan
+        ([0.5, 0.5, 0.5, np.nan], LTONE_INVALID_ERR),
+        ([0.5, 0.5, 0.5, np.nan] * 32, LTONE_INVALID_ERR),
+        ([np.nan, 1.0, 1.0, 1.0], ONE_INVALID_ERR),
+        ([np.nan, 1.0, 1.0, 1.0] * 32, ONE_INVALID_ERR),
+        ([np.nan], []),
+        ([np.nan] * 32, []),
+        # inf
+        ([0.5, 0.5, 0.5, np.inf], INF_INVALID_ERR + LTONE_INVALID_ERR),
+        ([0.5, 0.5, 0.5, np.inf] * 32, INF_INVALID_ERR + LTONE_INVALID_ERR),
+        ([np.inf, 1.0, 1.0, 1.0], INF_INVALID_ERR),
+        ([np.inf, 1.0, 1.0, 1.0] * 32, INF_INVALID_ERR),
+        ([np.inf], INF_INVALID_ERR),
+        ([np.inf] * 32, INF_INVALID_ERR),
+        # ninf
+        ([0.5, 0.5, 0.5, -np.inf],
+         NEG_INVALID_ERR + INF_INVALID_ERR + LTONE_INVALID_ERR),
+        ([0.5, 0.5, 0.5, -np.inf] * 32,
+         NEG_INVALID_ERR + INF_INVALID_ERR + LTONE_INVALID_ERR),
+        ([-np.inf, 1.0, 1.0, 1.0], NEG_INVALID_ERR + INF_INVALID_ERR),
+        ([-np.inf, 1.0, 1.0, 1.0] * 32, NEG_INVALID_ERR + INF_INVALID_ERR),
+        ([-np.inf], NEG_INVALID_ERR + INF_INVALID_ERR),
+        ([-np.inf] * 32, NEG_INVALID_ERR + INF_INVALID_ERR),
+    ))
+    def test_unary_spurious_fpexception(self, ufunc, dtype, data, escape):
+        if escape and ufunc in escape:
+            return
+        # FIXME: NAN raises FP invalid exception:
+        #  - ceil/float16 on MSVC:32-bit
+        #  - spacing/float16 on almost all platforms
+        #  - spacing/float32,float64 on Windows MSVC with VS2022
+        if ufunc in (np.spacing, np.ceil) and dtype == 'e':
+            return
+        # Skip spacing tests with NaN on Windows MSVC (all dtypes)
+        import platform
+        if (ufunc == np.spacing and
+            platform.system() == 'Windows' and
+            any(np.isnan(d) if isinstance(d, (int, float)) else False for d in data)):
+            pytest.skip("spacing with NaN generates warnings on Windows/VS2022")
+        array = np.array(data, dtype=dtype)
+        with assert_no_warnings():
+            ufunc(array)
+
+    @pytest.mark.parametrize("dtype", ('e', 'f', 'd'))
+    def test_divide_spurious_fpexception(self, dtype):
+        dt = np.dtype(dtype)
+        dt_info = np.finfo(dt)
+        subnorm = dt_info.smallest_subnormal
+        # Verify a bug fix caused due to filling the remaining lanes of the
+        # partially loaded dividend SIMD vector with ones, which leads to
+        # raising an overflow warning when the divisor is denormal.
+        # see https://github.com/numpy/numpy/issues/25097
+        with assert_no_warnings():
+            np.zeros(128 + 1, dtype=dt) / subnorm
+
+class TestFPClass:
+    @pytest.mark.parametrize("stride", [-5, -4, -3, -2, -1, 1,
+                                2, 4, 5, 6, 7, 8, 9, 10])
+    def test_fpclass(self, stride):
+        arr_f64 = np.array([np.nan, -np.nan, np.inf, -np.inf, -1.0, 1.0, -0.0, 0.0, 2.2251e-308, -2.2251e-308], dtype='d')
+        arr_f32 = np.array([np.nan, -np.nan, np.inf, -np.inf, -1.0, 1.0, -0.0, 0.0, 1.4013e-045, -1.4013e-045], dtype='f')
+        nan     = np.array([True, True, False, False, False, False, False, False, False, False])  # noqa: E221
+        inf     = np.array([False, False, True, True, False, False, False, False, False, False])  # noqa: E221
+        sign    = np.array([False, True, False, True, True, False, True, False, False, True])     # noqa: E221
+        finite  = np.array([False, False, False, False, True, True, True, True, True, True])      # noqa: E221
+        assert_equal(np.isnan(arr_f32[::stride]), nan[::stride])
+        assert_equal(np.isnan(arr_f64[::stride]), nan[::stride])
+        assert_equal(np.isinf(arr_f32[::stride]), inf[::stride])
+        assert_equal(np.isinf(arr_f64[::stride]), inf[::stride])
+        if platform.machine() == 'riscv64':
+            # On RISC-V, many operations that produce NaNs, such as converting
+            # a -NaN from f64 to f32, return a canonical NaN.  The canonical
+            # NaNs are always positive.  See section 11.3 NaN Generation and
+            # Propagation of the RISC-V Unprivileged ISA for more details.
+            # We disable the sign test on riscv64 for -np.nan as we
+            # cannot assume that its sign will be honoured in these tests.
+            arr_f64_rv = np.copy(arr_f64)
+            arr_f32_rv = np.copy(arr_f32)
+            arr_f64_rv[1] = -1.0
+            arr_f32_rv[1] = -1.0
+            assert_equal(np.signbit(arr_f32_rv[::stride]), sign[::stride])
+            assert_equal(np.signbit(arr_f64_rv[::stride]), sign[::stride])
+        else:
+            assert_equal(np.signbit(arr_f32[::stride]), sign[::stride])
+            assert_equal(np.signbit(arr_f64[::stride]), sign[::stride])
+        assert_equal(np.isfinite(arr_f32[::stride]), finite[::stride])
+        assert_equal(np.isfinite(arr_f64[::stride]), finite[::stride])
+
+    @pytest.mark.parametrize("dtype", ['d', 'f'])
+    def test_fp_noncontiguous(self, dtype):
+        data = np.array([np.nan, -np.nan, np.inf, -np.inf, -1.0,
+                            1.0, -0.0, 0.0, 2.2251e-308,
+                            -2.2251e-308], dtype=dtype)
+        nan = np.array([True, True, False, False, False, False,
+                            False, False, False, False])
+        inf = np.array([False, False, True, True, False, False,
+                            False, False, False, False])
+        sign = np.array([False, True, False, True, True, False,
+                            True, False, False, True])
+        finite = np.array([False, False, False, False, True, True,
+                            True, True, True, True])
+        out = np.ndarray(data.shape, dtype='bool')
+        ncontig_in = data[1::3]
+        ncontig_out = out[1::3]
+        contig_in = np.array(ncontig_in)
+
+        if platform.machine() == 'riscv64':
+            # Disable the -np.nan signbit tests on riscv64.  See comments in
+            # test_fpclass for more details.
+            data_rv = np.copy(data)
+            data_rv[1] = -1.0
+            ncontig_sign_in = data_rv[1::3]
+            contig_sign_in = np.array(ncontig_sign_in)
+        else:
+            ncontig_sign_in = ncontig_in
+            contig_sign_in = contig_in
+
+        assert_equal(ncontig_in.flags.c_contiguous, False)
+        assert_equal(ncontig_out.flags.c_contiguous, False)
+        assert_equal(contig_in.flags.c_contiguous, True)
+        assert_equal(ncontig_sign_in.flags.c_contiguous, False)
+        assert_equal(contig_sign_in.flags.c_contiguous, True)
+        # ncontig in, ncontig out
+        assert_equal(np.isnan(ncontig_in, out=ncontig_out), nan[1::3])
+        assert_equal(np.isinf(ncontig_in, out=ncontig_out), inf[1::3])
+        assert_equal(np.signbit(ncontig_sign_in, out=ncontig_out), sign[1::3])
+        assert_equal(np.isfinite(ncontig_in, out=ncontig_out), finite[1::3])
+        # contig in, ncontig out
+        assert_equal(np.isnan(contig_in, out=ncontig_out), nan[1::3])
+        assert_equal(np.isinf(contig_in, out=ncontig_out), inf[1::3])
+        assert_equal(np.signbit(contig_sign_in, out=ncontig_out), sign[1::3])
+        assert_equal(np.isfinite(contig_in, out=ncontig_out), finite[1::3])
+        # ncontig in, contig out
+        assert_equal(np.isnan(ncontig_in), nan[1::3])
+        assert_equal(np.isinf(ncontig_in), inf[1::3])
+        assert_equal(np.signbit(ncontig_sign_in), sign[1::3])
+        assert_equal(np.isfinite(ncontig_in), finite[1::3])
+        # contig in, contig out, nd stride
+        data_split = np.array(np.array_split(data, 2))
+        nan_split = np.array(np.array_split(nan, 2))
+        inf_split = np.array(np.array_split(inf, 2))
+        sign_split = np.array(np.array_split(sign, 2))
+        finite_split = np.array(np.array_split(finite, 2))
+        assert_equal(np.isnan(data_split), nan_split)
+        assert_equal(np.isinf(data_split), inf_split)
+        if platform.machine() == 'riscv64':
+            data_split_rv = np.array(np.array_split(data_rv, 2))
+            assert_equal(np.signbit(data_split_rv), sign_split)
+        else:
+            assert_equal(np.signbit(data_split), sign_split)
+        assert_equal(np.isfinite(data_split), finite_split)
+
+class TestLDExp:
+    @pytest.mark.parametrize("stride", [-4, -2, -1, 1, 2, 4])
+    @pytest.mark.parametrize("dtype", ['f', 'd'])
+    def test_ldexp(self, dtype, stride):
+        mant = np.array([0.125, 0.25, 0.5, 1., 1., 2., 4., 8.], dtype=dtype)
+        exp = np.array([3, 2, 1, 0, 0, -1, -2, -3], dtype='i')
+        out = np.zeros(8, dtype=dtype)
+        assert_equal(np.ldexp(mant[::stride], exp[::stride], out=out[::stride]), np.ones(8, dtype=dtype)[::stride])
+        assert_equal(out[::stride], np.ones(8, dtype=dtype)[::stride])
+
+class TestFRExp:
+    @pytest.mark.parametrize("stride", [-4, -2, -1, 1, 2, 4])
+    @pytest.mark.parametrize("dtype", ['f', 'd'])
+    @pytest.mark.skipif(not sys.platform.startswith('linux'),
+                        reason="np.frexp gives different answers for NAN/INF on windows and linux")
+    @pytest.mark.xfail(IS_MUSL, reason="gh23049")
+    def test_frexp(self, dtype, stride):
+        arr = np.array([np.nan, np.nan, np.inf, -np.inf, 0.0, -0.0, 1.0, -1.0], dtype=dtype)
+        mant_true = np.array([np.nan, np.nan, np.inf, -np.inf, 0.0, -0.0, 0.5, -0.5], dtype=dtype)
+        exp_true = np.array([0, 0, 0, 0, 0, 0, 1, 1], dtype='i')
+        out_mant = np.ones(8, dtype=dtype)
+        out_exp = 2 * np.ones(8, dtype='i')
+        mant, exp = np.frexp(arr[::stride], out=(out_mant[::stride], out_exp[::stride]))
+        assert_equal(mant_true[::stride], mant)
+        assert_equal(exp_true[::stride], exp)
+        assert_equal(out_mant[::stride], mant_true[::stride])
+        assert_equal(out_exp[::stride], exp_true[::stride])
+
+
+# func : [maxulperror, low, high]
+avx_ufuncs = {'sqrt'        : [1,  0.,   100.],   # noqa: E203
+              'absolute'    : [0, -100., 100.],   # noqa: E203
+              'reciprocal'  : [1,  1.,   100.],   # noqa: E203
+              'square'      : [1, -100., 100.],   # noqa: E203
+              'rint'        : [0, -100., 100.],   # noqa: E203
+              'floor'       : [0, -100., 100.],   # noqa: E203
+              'ceil'        : [0, -100., 100.],   # noqa: E203
+              'trunc'       : [0, -100., 100.]}   # noqa: E203
+
+class TestAVXUfuncs:
+    def test_avx_based_ufunc(self):
+        strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4])
+        np.random.seed(42)
+        for func, prop in avx_ufuncs.items():
+            maxulperr = prop[0]
+            minval = prop[1]
+            maxval = prop[2]
+            # various array sizes to ensure masking in AVX is tested
+            for size in range(1, 32):
+                myfunc = getattr(np, func)
+                x_f32 = np.random.uniform(low=minval, high=maxval,
+                                          size=size).astype(np.float32)
+                x_f64 = x_f32.astype(np.float64)
+                x_f128 = x_f32.astype(np.longdouble)
+                y_true128 = myfunc(x_f128)
+                if maxulperr == 0:
+                    assert_equal(myfunc(x_f32), y_true128.astype(np.float32))
+                    assert_equal(myfunc(x_f64), y_true128.astype(np.float64))
+                else:
+                    assert_array_max_ulp(myfunc(x_f32),
+                                         y_true128.astype(np.float32),
+                                         maxulp=maxulperr)
+                    assert_array_max_ulp(myfunc(x_f64),
+                                         y_true128.astype(np.float64),
+                                         maxulp=maxulperr)
+                # various strides to test gather instruction
+                if size > 1:
+                    y_true32 = myfunc(x_f32)
+                    y_true64 = myfunc(x_f64)
+                    for jj in strides:
+                        assert_equal(myfunc(x_f64[::jj]), y_true64[::jj])
+                        assert_equal(myfunc(x_f32[::jj]), y_true32[::jj])
+
+class TestAVXFloat32Transcendental:
+    def test_exp_float32(self):
+        np.random.seed(42)
+        x_f32 = np.float32(np.random.uniform(low=0.0, high=88.1, size=1000000))
+        x_f64 = np.float64(x_f32)
+        assert_array_max_ulp(np.exp(x_f32), np.float32(np.exp(x_f64)), maxulp=3)
+
+    def test_log_float32(self):
+        np.random.seed(42)
+        x_f32 = np.float32(np.random.uniform(low=0.0, high=1000, size=1000000))
+        x_f64 = np.float64(x_f32)
+        assert_array_max_ulp(np.log(x_f32), np.float32(np.log(x_f64)), maxulp=4)
+
+    def test_sincos_float32(self):
+        np.random.seed(42)
+        N = 1000000
+        M = np.int_(N / 20)
+        index = np.random.randint(low=0, high=N, size=M)
+        x_f32 = np.float32(np.random.uniform(low=-100., high=100., size=N))
+        if not _glibc_older_than("2.17"):
+            # test coverage for elements > 117435.992f for which glibc is used
+            # this is known to be problematic on old glibc, so skip it there
+            x_f32[index] = np.float32(10E+10 * np.random.rand(M))
+        x_f64 = np.float64(x_f32)
+        assert_array_max_ulp(np.sin(x_f32), np.float32(np.sin(x_f64)), maxulp=2)
+        assert_array_max_ulp(np.cos(x_f32), np.float32(np.cos(x_f64)), maxulp=2)
+        # test aliasing(issue #17761)
+        tx_f32 = x_f32.copy()
+        assert_array_max_ulp(np.sin(x_f32, out=x_f32), np.float32(np.sin(x_f64)), maxulp=2)
+        assert_array_max_ulp(np.cos(tx_f32, out=tx_f32), np.float32(np.cos(x_f64)), maxulp=2)
+
+    def test_strided_float32(self):
+        np.random.seed(42)
+        strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4])
+        sizes = np.arange(2, 100)
+        for ii in sizes:
+            x_f32 = np.float32(np.random.uniform(low=0.01, high=88.1, size=ii))
+            x_f32_large = x_f32.copy()
+            x_f32_large[3:-1:4] = 120000.0
+            exp_true = np.exp(x_f32)
+            log_true = np.log(x_f32)
+            sin_true = np.sin(x_f32_large)
+            cos_true = np.cos(x_f32_large)
+            for jj in strides:
+                assert_array_almost_equal_nulp(np.exp(x_f32[::jj]), exp_true[::jj], nulp=2)
+                assert_array_almost_equal_nulp(np.log(x_f32[::jj]), log_true[::jj], nulp=2)
+                assert_array_almost_equal_nulp(np.sin(x_f32_large[::jj]), sin_true[::jj], nulp=2)
+                assert_array_almost_equal_nulp(np.cos(x_f32_large[::jj]), cos_true[::jj], nulp=2)
+
+class TestLogAddExp(_FilterInvalids):
+    def test_logaddexp_values(self):
+        x = [1, 2, 3, 4, 5]
+        y = [5, 4, 3, 2, 1]
+        z = [6, 6, 6, 6, 6]
+        for dt, dec_ in zip(['f', 'd', 'g'], [6, 15, 15]):
+            xf = np.log(np.array(x, dtype=dt))
+            yf = np.log(np.array(y, dtype=dt))
+            zf = np.log(np.array(z, dtype=dt))
+            assert_almost_equal(np.logaddexp(xf, yf), zf, decimal=dec_)
+
+    def test_logaddexp_range(self):
+        x = [1000000, -1000000, 1000200, -1000200]
+        y = [1000200, -1000200, 1000000, -1000000]
+        z = [1000200, -1000000, 1000200, -1000000]
+        for dt in ['f', 'd', 'g']:
+            logxf = np.array(x, dtype=dt)
+            logyf = np.array(y, dtype=dt)
+            logzf = np.array(z, dtype=dt)
+            assert_almost_equal(np.logaddexp(logxf, logyf), logzf)
+
+    def test_inf(self):
+        inf = np.inf
+        x = [inf, -inf,  inf, -inf, inf, 1,  -inf,  1]    # noqa: E221
+        y = [inf,  inf, -inf, -inf, 1,   inf, 1,   -inf]  # noqa: E221
+        z = [inf,  inf,  inf, -inf, inf, inf, 1,    1]
+        with np.errstate(invalid='raise'):
+            for dt in ['f', 'd', 'g']:
+                logxf = np.array(x, dtype=dt)
+                logyf = np.array(y, dtype=dt)
+                logzf = np.array(z, dtype=dt)
+                assert_equal(np.logaddexp(logxf, logyf), logzf)
+
+    def test_nan(self):
+        assert_(np.isnan(np.logaddexp(np.nan, np.inf)))
+        assert_(np.isnan(np.logaddexp(np.inf, np.nan)))
+        assert_(np.isnan(np.logaddexp(np.nan, 0)))
+        assert_(np.isnan(np.logaddexp(0, np.nan)))
+        assert_(np.isnan(np.logaddexp(np.nan, np.nan)))
+
+    def test_reduce(self):
+        assert_equal(np.logaddexp.identity, -np.inf)
+        assert_equal(np.logaddexp.reduce([]), -np.inf)
+
+
+class TestLog1p:
+    def test_log1p(self):
+        assert_almost_equal(ncu.log1p(0.2), ncu.log(1.2))
+        assert_almost_equal(ncu.log1p(1e-6), ncu.log(1 + 1e-6))
+
+    def test_special(self):
+        with np.errstate(invalid="ignore", divide="ignore"):
+            assert_equal(ncu.log1p(np.nan), np.nan)
+            assert_equal(ncu.log1p(np.inf), np.inf)
+            assert_equal(ncu.log1p(-1.), -np.inf)
+            assert_equal(ncu.log1p(-2.), np.nan)
+            assert_equal(ncu.log1p(-np.inf), np.nan)
+
+
+class TestExpm1:
+    def test_expm1(self):
+        assert_almost_equal(ncu.expm1(0.2), ncu.exp(0.2) - 1)
+        assert_almost_equal(ncu.expm1(1e-6), ncu.exp(1e-6) - 1)
+
+    def test_special(self):
+        assert_equal(ncu.expm1(np.inf), np.inf)
+        assert_equal(ncu.expm1(0.), 0.)
+        assert_equal(ncu.expm1(-0.), -0.)
+        assert_equal(ncu.expm1(np.inf), np.inf)
+        assert_equal(ncu.expm1(-np.inf), -1.)
+
+    def test_complex(self):
+        x = np.asarray(1e-12)
+        assert_allclose(x, ncu.expm1(x))
+        x = x.astype(np.complex128)
+        assert_allclose(x, ncu.expm1(x))
+
+
+class TestHypot:
+    def test_simple(self):
+        assert_almost_equal(ncu.hypot(1, 1), ncu.sqrt(2))
+        assert_almost_equal(ncu.hypot(0, 0), 0)
+
+    def test_reduce(self):
+        assert_almost_equal(ncu.hypot.reduce([3.0, 4.0]), 5.0)
+        assert_almost_equal(ncu.hypot.reduce([3.0, 4.0, 0]), 5.0)
+        assert_almost_equal(ncu.hypot.reduce([9.0, 12.0, 20.0]), 25.0)
+        assert_equal(ncu.hypot.reduce([]), 0.0)
+
+
+def assert_hypot_isnan(x, y):
+    with np.errstate(invalid='ignore'):
+        assert_(np.isnan(ncu.hypot(x, y)),
+                f"hypot({x}, {y}) is {ncu.hypot(x, y)}, not nan")
+
+
+def assert_hypot_isinf(x, y):
+    with np.errstate(invalid='ignore'):
+        assert_(np.isinf(ncu.hypot(x, y)),
+                f"hypot({x}, {y}) is {ncu.hypot(x, y)}, not inf")
+
+
+class TestHypotSpecialValues:
+    def test_nan_outputs(self):
+        assert_hypot_isnan(np.nan, np.nan)
+        assert_hypot_isnan(np.nan, 1)
+
+    def test_nan_outputs2(self):
+        assert_hypot_isinf(np.nan, np.inf)
+        assert_hypot_isinf(np.inf, np.nan)
+        assert_hypot_isinf(np.inf, 0)
+        assert_hypot_isinf(0, np.inf)
+        assert_hypot_isinf(np.inf, np.inf)
+        assert_hypot_isinf(np.inf, 23.0)
+
+    def test_no_fpe(self):
+        assert_no_warnings(ncu.hypot, np.inf, 0)
+
+
+def assert_arctan2_isnan(x, y):
+    assert_(np.isnan(ncu.arctan2(x, y)), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not nan")
+
+
+def assert_arctan2_ispinf(x, y):
+    assert_((np.isinf(ncu.arctan2(x, y)) and ncu.arctan2(x, y) > 0), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not +inf")
+
+
+def assert_arctan2_isninf(x, y):
+    assert_((np.isinf(ncu.arctan2(x, y)) and ncu.arctan2(x, y) < 0), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not -inf")
+
+
+def assert_arctan2_ispzero(x, y):
+    assert_((ncu.arctan2(x, y) == 0 and not np.signbit(ncu.arctan2(x, y))), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not +0")
+
+
+def assert_arctan2_isnzero(x, y):
+    assert_((ncu.arctan2(x, y) == 0 and np.signbit(ncu.arctan2(x, y))), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not -0")
+
+
+class TestArctan2SpecialValues:
+    def test_one_one(self):
+        # atan2(1, 1) returns pi/4.
+        assert_almost_equal(ncu.arctan2(1, 1), 0.25 * np.pi)
+        assert_almost_equal(ncu.arctan2(-1, 1), -0.25 * np.pi)
+        assert_almost_equal(ncu.arctan2(1, -1), 0.75 * np.pi)
+
+    def test_zero_nzero(self):
+        # atan2(+-0, -0) returns +-pi.
+        assert_almost_equal(ncu.arctan2(ncu.PZERO, ncu.NZERO), np.pi)
+        assert_almost_equal(ncu.arctan2(ncu.NZERO, ncu.NZERO), -np.pi)
+
+    def test_zero_pzero(self):
+        # atan2(+-0, +0) returns +-0.
+        assert_arctan2_ispzero(ncu.PZERO, ncu.PZERO)
+        assert_arctan2_isnzero(ncu.NZERO, ncu.PZERO)
+
+    def test_zero_negative(self):
+        # atan2(+-0, x) returns +-pi for x < 0.
+        assert_almost_equal(ncu.arctan2(ncu.PZERO, -1), np.pi)
+        assert_almost_equal(ncu.arctan2(ncu.NZERO, -1), -np.pi)
+
+    def test_zero_positive(self):
+        # atan2(+-0, x) returns +-0 for x > 0.
+        assert_arctan2_ispzero(ncu.PZERO, 1)
+        assert_arctan2_isnzero(ncu.NZERO, 1)
+
+    def test_positive_zero(self):
+        # atan2(y, +-0) returns +pi/2 for y > 0.
+        assert_almost_equal(ncu.arctan2(1, ncu.PZERO), 0.5 * np.pi)
+        assert_almost_equal(ncu.arctan2(1, ncu.NZERO), 0.5 * np.pi)
+
+    def test_negative_zero(self):
+        # atan2(y, +-0) returns -pi/2 for y < 0.
+        assert_almost_equal(ncu.arctan2(-1, ncu.PZERO), -0.5 * np.pi)
+        assert_almost_equal(ncu.arctan2(-1, ncu.NZERO), -0.5 * np.pi)
+
+    def test_any_ninf(self):
+        # atan2(+-y, -infinity) returns +-pi for finite y > 0.
+        assert_almost_equal(ncu.arctan2(1, -np.inf),  np.pi)
+        assert_almost_equal(ncu.arctan2(-1, -np.inf), -np.pi)
+
+    def test_any_pinf(self):
+        # atan2(+-y, +infinity) returns +-0 for finite y > 0.
+        assert_arctan2_ispzero(1, np.inf)
+        assert_arctan2_isnzero(-1, np.inf)
+
+    def test_inf_any(self):
+        # atan2(+-infinity, x) returns +-pi/2 for finite x.
+        assert_almost_equal(ncu.arctan2( np.inf, 1),  0.5 * np.pi)
+        assert_almost_equal(ncu.arctan2(-np.inf, 1), -0.5 * np.pi)
+
+    def test_inf_ninf(self):
+        # atan2(+-infinity, -infinity) returns +-3*pi/4.
+        assert_almost_equal(ncu.arctan2( np.inf, -np.inf),  0.75 * np.pi)
+        assert_almost_equal(ncu.arctan2(-np.inf, -np.inf), -0.75 * np.pi)
+
+    def test_inf_pinf(self):
+        # atan2(+-infinity, +infinity) returns +-pi/4.
+        assert_almost_equal(ncu.arctan2( np.inf, np.inf),  0.25 * np.pi)
+        assert_almost_equal(ncu.arctan2(-np.inf, np.inf), -0.25 * np.pi)
+
+    def test_nan_any(self):
+        # atan2(nan, x) returns nan for any x, including inf
+        assert_arctan2_isnan(np.nan, np.inf)
+        assert_arctan2_isnan(np.inf, np.nan)
+        assert_arctan2_isnan(np.nan, np.nan)
+
+
+class TestLdexp:
+    def _check_ldexp(self, tp):
+        assert_almost_equal(ncu.ldexp(np.array(2., np.float32),
+                                      np.array(3, tp)), 16.)
+        assert_almost_equal(ncu.ldexp(np.array(2., np.float64),
+                                      np.array(3, tp)), 16.)
+        assert_almost_equal(ncu.ldexp(np.array(2., np.longdouble),
+                                      np.array(3, tp)), 16.)
+
+    def test_ldexp(self):
+        # The default Python int type should work
+        assert_almost_equal(ncu.ldexp(2., 3),  16.)
+        # The following int types should all be accepted
+        self._check_ldexp(np.int8)
+        self._check_ldexp(np.int16)
+        self._check_ldexp(np.int32)
+        self._check_ldexp('i')
+        self._check_ldexp('l')
+
+    def test_ldexp_overflow(self):
+        # silence warning emitted on overflow
+        with np.errstate(over="ignore"):
+            imax = np.iinfo(np.dtype('l')).max
+            imin = np.iinfo(np.dtype('l')).min
+            assert_equal(ncu.ldexp(2., imax), np.inf)
+            assert_equal(ncu.ldexp(2., imin), 0)
+
+
+class TestMaximum(_FilterInvalids):
+    def test_reduce(self):
+        dflt = np.typecodes['AllFloat']
+        dint = np.typecodes['AllInteger']
+        seq1 = np.arange(11)
+        seq2 = seq1[::-1]
+        func = np.maximum.reduce
+        for dt in dint:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 10)
+            assert_equal(func(tmp2), 10)
+        for dt in dflt:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 10)
+            assert_equal(func(tmp2), 10)
+            tmp1[::2] = np.nan
+            tmp2[::2] = np.nan
+            assert_equal(func(tmp1), np.nan)
+            assert_equal(func(tmp2), np.nan)
+
+    def test_reduce_complex(self):
+        assert_equal(np.maximum.reduce([1, 2j]), 1)
+        assert_equal(np.maximum.reduce([1 + 3j, 2j]), 1 + 3j)
+
+    def test_float_nans(self):
+        nan = np.nan
+        arg1 = np.array([0,   nan, nan])
+        arg2 = np.array([nan, 0,   nan])
+        out = np.array([nan, nan, nan])
+        assert_equal(np.maximum(arg1, arg2), out)
+
+    def test_object_nans(self):
+        # Multiple checks to give this a chance to
+        # fail if cmp is used instead of rich compare.
+        # Failure cannot be guaranteed.
+        for i in range(1):
+            x = np.array(float('nan'), object)
+            y = 1.0
+            z = np.array(float('nan'), object)
+            assert_(np.maximum(x, y) == 1.0)
+            assert_(np.maximum(z, y) == 1.0)
+
+    def test_complex_nans(self):
+        nan = np.nan
+        for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]:
+            arg1 = np.array([0, cnan, cnan], dtype=complex)
+            arg2 = np.array([cnan, 0, cnan], dtype=complex)
+            out = np.array([nan, nan, nan], dtype=complex)
+            assert_equal(np.maximum(arg1, arg2), out)
+
+    def test_object_array(self):
+        arg1 = np.arange(5, dtype=object)
+        arg2 = arg1 + 1
+        assert_equal(np.maximum(arg1, arg2), arg2)
+
+    def test_strided_array(self):
+        arr1 = np.array([-4.0,  1.0, 10.0,   0.0, np.nan, -np.nan, np.inf, -np.inf])
+        arr2 = np.array([-2.0, -1.0, np.nan, 1.0, 0.0,     np.nan, 1.0,    -3.0])  # noqa: E221
+        maxtrue = np.array([-2.0, 1.0, np.nan, 1.0, np.nan, np.nan, np.inf, -3.0])
+        out = np.ones(8)
+        out_maxtrue = np.array([-2.0, 1.0, 1.0, 10.0, 1.0, 1.0, np.nan, 1.0])
+        assert_equal(np.maximum(arr1, arr2), maxtrue)
+        assert_equal(np.maximum(arr1[::2], arr2[::2]), maxtrue[::2])
+        assert_equal(np.maximum(arr1[:4:], arr2[::2]), np.array([-2.0, np.nan, 10.0, 1.0]))
+        assert_equal(np.maximum(arr1[::3], arr2[:3:]), np.array([-2.0, 0.0, np.nan]))
+        assert_equal(np.maximum(arr1[:6:2], arr2[::3], out=out[::3]), np.array([-2.0, 10., np.nan]))
+        assert_equal(out, out_maxtrue)
+
+    def test_precision(self):
+        dtypes = [np.float16, np.float32, np.float64, np.longdouble]
+
+        for dt in dtypes:
+            dtmin = np.finfo(dt).min
+            dtmax = np.finfo(dt).max
+            d1 = dt(0.1)
+            d1_next = np.nextafter(d1, np.inf)
+
+            test_cases = [
+                # v1    v2          expected
+                (dtmin, -np.inf,    dtmin),
+                (dtmax, -np.inf,    dtmax),
+                (d1,    d1_next,    d1_next),
+                (dtmax, np.nan,     np.nan),
+            ]
+
+            for v1, v2, expected in test_cases:
+                assert_equal(np.maximum([v1], [v2]), [expected])
+                assert_equal(np.maximum.reduce([v1, v2]), expected)
+
+
+class TestMinimum(_FilterInvalids):
+    def test_reduce(self):
+        dflt = np.typecodes['AllFloat']
+        dint = np.typecodes['AllInteger']
+        seq1 = np.arange(11)
+        seq2 = seq1[::-1]
+        func = np.minimum.reduce
+        for dt in dint:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 0)
+            assert_equal(func(tmp2), 0)
+        for dt in dflt:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 0)
+            assert_equal(func(tmp2), 0)
+            tmp1[::2] = np.nan
+            tmp2[::2] = np.nan
+            assert_equal(func(tmp1), np.nan)
+            assert_equal(func(tmp2), np.nan)
+
+    def test_reduce_complex(self):
+        assert_equal(np.minimum.reduce([1, 2j]), 2j)
+        assert_equal(np.minimum.reduce([1 + 3j, 2j]), 2j)
+
+    def test_float_nans(self):
+        nan = np.nan
+        arg1 = np.array([0,   nan, nan])
+        arg2 = np.array([nan, 0,   nan])
+        out = np.array([nan, nan, nan])
+        assert_equal(np.minimum(arg1, arg2), out)
+
+    def test_object_nans(self):
+        # Multiple checks to give this a chance to
+        # fail if cmp is used instead of rich compare.
+        # Failure cannot be guaranteed.
+        for i in range(1):
+            x = np.array(float('nan'), object)
+            y = 1.0
+            z = np.array(float('nan'), object)
+            assert_(np.minimum(x, y) == 1.0)
+            assert_(np.minimum(z, y) == 1.0)
+
+    def test_complex_nans(self):
+        nan = np.nan
+        for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]:
+            arg1 = np.array([0, cnan, cnan], dtype=complex)
+            arg2 = np.array([cnan, 0, cnan], dtype=complex)
+            out = np.array([nan, nan, nan], dtype=complex)
+            assert_equal(np.minimum(arg1, arg2), out)
+
+    def test_object_array(self):
+        arg1 = np.arange(5, dtype=object)
+        arg2 = arg1 + 1
+        assert_equal(np.minimum(arg1, arg2), arg1)
+
+    def test_strided_array(self):
+        arr1 = np.array([-4.0, 1.0, 10.0,  0.0, np.nan, -np.nan, np.inf, -np.inf])
+        arr2 = np.array([-2.0, -1.0, np.nan, 1.0, 0.0,    np.nan, 1.0, -3.0])
+        mintrue = np.array([-4.0, -1.0, np.nan, 0.0, np.nan, np.nan, 1.0, -np.inf])
+        out = np.ones(8)
+        out_mintrue = np.array([-4.0, 1.0, 1.0, 1.0, 1.0, 1.0, np.nan, 1.0])
+        assert_equal(np.minimum(arr1, arr2), mintrue)
+        assert_equal(np.minimum(arr1[::2], arr2[::2]), mintrue[::2])
+        assert_equal(np.minimum(arr1[:4:], arr2[::2]), np.array([-4.0, np.nan, 0.0, 0.0]))
+        assert_equal(np.minimum(arr1[::3], arr2[:3:]), np.array([-4.0, -1.0, np.nan]))
+        assert_equal(np.minimum(arr1[:6:2], arr2[::3], out=out[::3]), np.array([-4.0, 1.0, np.nan]))
+        assert_equal(out, out_mintrue)
+
+    def test_precision(self):
+        dtypes = [np.float16, np.float32, np.float64, np.longdouble]
+
+        for dt in dtypes:
+            dtmin = np.finfo(dt).min
+            dtmax = np.finfo(dt).max
+            d1 = dt(0.1)
+            d1_next = np.nextafter(d1, np.inf)
+
+            test_cases = [
+                # v1    v2          expected
+                (dtmin, np.inf,     dtmin),
+                (dtmax, np.inf,     dtmax),
+                (d1,    d1_next,    d1),
+                (dtmin, np.nan,     np.nan),
+            ]
+
+            for v1, v2, expected in test_cases:
+                assert_equal(np.minimum([v1], [v2]), [expected])
+                assert_equal(np.minimum.reduce([v1, v2]), expected)
+
+
+class TestFmax(_FilterInvalids):
+    def test_reduce(self):
+        dflt = np.typecodes['AllFloat']
+        dint = np.typecodes['AllInteger']
+        seq1 = np.arange(11)
+        seq2 = seq1[::-1]
+        func = np.fmax.reduce
+        for dt in dint:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 10)
+            assert_equal(func(tmp2), 10)
+        for dt in dflt:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 10)
+            assert_equal(func(tmp2), 10)
+            tmp1[::2] = np.nan
+            tmp2[::2] = np.nan
+            assert_equal(func(tmp1), 9)
+            assert_equal(func(tmp2), 9)
+
+    def test_reduce_complex(self):
+        assert_equal(np.fmax.reduce([1, 2j]), 1)
+        assert_equal(np.fmax.reduce([1 + 3j, 2j]), 1 + 3j)
+
+    def test_float_nans(self):
+        nan = np.nan
+        arg1 = np.array([0,   nan, nan])
+        arg2 = np.array([nan, 0,   nan])
+        out = np.array([0,   0,   nan])
+        assert_equal(np.fmax(arg1, arg2), out)
+
+    def test_complex_nans(self):
+        nan = np.nan
+        for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]:
+            arg1 = np.array([0, cnan, cnan], dtype=complex)
+            arg2 = np.array([cnan, 0, cnan], dtype=complex)
+            out = np.array([0,    0, nan], dtype=complex)
+            assert_equal(np.fmax(arg1, arg2), out)
+
+    def test_precision(self):
+        dtypes = [np.float16, np.float32, np.float64, np.longdouble]
+
+        for dt in dtypes:
+            dtmin = np.finfo(dt).min
+            dtmax = np.finfo(dt).max
+            d1 = dt(0.1)
+            d1_next = np.nextafter(d1, np.inf)
+
+            test_cases = [
+                # v1    v2          expected
+                (dtmin, -np.inf,    dtmin),
+                (dtmax, -np.inf,    dtmax),
+                (d1,    d1_next,    d1_next),
+                (dtmax, np.nan,     dtmax),
+            ]
+
+            for v1, v2, expected in test_cases:
+                assert_equal(np.fmax([v1], [v2]), [expected])
+                assert_equal(np.fmax.reduce([v1, v2]), expected)
+
+
+class TestFmin(_FilterInvalids):
+    def test_reduce(self):
+        dflt = np.typecodes['AllFloat']
+        dint = np.typecodes['AllInteger']
+        seq1 = np.arange(11)
+        seq2 = seq1[::-1]
+        func = np.fmin.reduce
+        for dt in dint:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 0)
+            assert_equal(func(tmp2), 0)
+        for dt in dflt:
+            tmp1 = seq1.astype(dt)
+            tmp2 = seq2.astype(dt)
+            assert_equal(func(tmp1), 0)
+            assert_equal(func(tmp2), 0)
+            tmp1[::2] = np.nan
+            tmp2[::2] = np.nan
+            assert_equal(func(tmp1), 1)
+            assert_equal(func(tmp2), 1)
+
+    def test_reduce_complex(self):
+        assert_equal(np.fmin.reduce([1, 2j]), 2j)
+        assert_equal(np.fmin.reduce([1 + 3j, 2j]), 2j)
+
+    def test_float_nans(self):
+        nan = np.nan
+        arg1 = np.array([0,   nan, nan])
+        arg2 = np.array([nan, 0,   nan])
+        out = np.array([0,   0,   nan])
+        assert_equal(np.fmin(arg1, arg2), out)
+
+    def test_complex_nans(self):
+        nan = np.nan
+        for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]:
+            arg1 = np.array([0, cnan, cnan], dtype=complex)
+            arg2 = np.array([cnan, 0, cnan], dtype=complex)
+            out = np.array([0,    0, nan], dtype=complex)
+            assert_equal(np.fmin(arg1, arg2), out)
+
+    def test_precision(self):
+        dtypes = [np.float16, np.float32, np.float64, np.longdouble]
+
+        for dt in dtypes:
+            dtmin = np.finfo(dt).min
+            dtmax = np.finfo(dt).max
+            d1 = dt(0.1)
+            d1_next = np.nextafter(d1, np.inf)
+
+            test_cases = [
+                # v1    v2          expected
+                (dtmin, np.inf,     dtmin),
+                (dtmax, np.inf,     dtmax),
+                (d1,    d1_next,    d1),
+                (dtmin, np.nan,     dtmin),
+            ]
+
+            for v1, v2, expected in test_cases:
+                assert_equal(np.fmin([v1], [v2]), [expected])
+                assert_equal(np.fmin.reduce([v1, v2]), expected)
+
+
+class TestBool:
+    def test_exceptions(self):
+        a = np.ones(1, dtype=np.bool)
+        assert_raises(TypeError, np.negative, a)
+        assert_raises(TypeError, np.positive, a)
+        assert_raises(TypeError, np.subtract, a, a)
+
+    def test_truth_table_logical(self):
+        # 2, 3 and 4 serves as true values
+        input1 = [0, 0, 3, 2]
+        input2 = [0, 4, 0, 2]
+
+        typecodes = (np.typecodes['AllFloat']
+                     + np.typecodes['AllInteger']
+                     + '?')     # boolean
+        for dtype in map(np.dtype, typecodes):
+            arg1 = np.asarray(input1, dtype=dtype)
+            arg2 = np.asarray(input2, dtype=dtype)
+
+            # OR
+            out = [False, True, True, True]
+            for func in (np.logical_or, np.maximum):
+                assert_equal(func(arg1, arg2).astype(bool), out)
+            # AND
+            out = [False, False, False, True]
+            for func in (np.logical_and, np.minimum):
+                assert_equal(func(arg1, arg2).astype(bool), out)
+            # XOR
+            out = [False, True, True, False]
+            for func in (np.logical_xor, np.not_equal):
+                assert_equal(func(arg1, arg2).astype(bool), out)
+
+    def test_truth_table_bitwise(self):
+        arg1 = [False, False, True, True]
+        arg2 = [False, True, False, True]
+
+        out = [False, True, True, True]
+        assert_equal(np.bitwise_or(arg1, arg2), out)
+
+        out = [False, False, False, True]
+        assert_equal(np.bitwise_and(arg1, arg2), out)
+
+        out = [False, True, True, False]
+        assert_equal(np.bitwise_xor(arg1, arg2), out)
+
+    def test_reduce(self):
+        none = np.array([0, 0, 0, 0], bool)
+        some = np.array([1, 0, 1, 1], bool)
+        every = np.array([1, 1, 1, 1], bool)
+        empty = np.array([], bool)
+
+        arrs = [none, some, every, empty]
+
+        for arr in arrs:
+            assert_equal(np.logical_and.reduce(arr), all(arr))
+
+        for arr in arrs:
+            assert_equal(np.logical_or.reduce(arr), any(arr))
+
+        for arr in arrs:
+            assert_equal(np.logical_xor.reduce(arr), arr.sum() % 2 == 1)
+
+
+class TestBitwiseUFuncs:
+
+    _all_ints_bits = [
+        np.dtype(c).itemsize * 8 for c in np.typecodes["AllInteger"]]
+    bitwise_types = [
+        np.dtype(c) for c in '?' + np.typecodes["AllInteger"] + 'O']
+    bitwise_bits = [
+        2,  # boolean type
+        *_all_ints_bits,  # All integers
+        max(_all_ints_bits) + 1,  # Object_ type
+    ]
+
+    def test_values(self):
+        for dt in self.bitwise_types:
+            zeros = np.array([0], dtype=dt)
+            ones = np.array([-1]).astype(dt)
+            msg = f"dt = '{dt.char}'"
+
+            assert_equal(np.bitwise_not(zeros), ones, err_msg=msg)
+            assert_equal(np.bitwise_not(ones), zeros, err_msg=msg)
+
+            assert_equal(np.bitwise_or(zeros, zeros), zeros, err_msg=msg)
+            assert_equal(np.bitwise_or(zeros, ones), ones, err_msg=msg)
+            assert_equal(np.bitwise_or(ones, zeros), ones, err_msg=msg)
+            assert_equal(np.bitwise_or(ones, ones), ones, err_msg=msg)
+
+            assert_equal(np.bitwise_xor(zeros, zeros), zeros, err_msg=msg)
+            assert_equal(np.bitwise_xor(zeros, ones), ones, err_msg=msg)
+            assert_equal(np.bitwise_xor(ones, zeros), ones, err_msg=msg)
+            assert_equal(np.bitwise_xor(ones, ones), zeros, err_msg=msg)
+
+            assert_equal(np.bitwise_and(zeros, zeros), zeros, err_msg=msg)
+            assert_equal(np.bitwise_and(zeros, ones), zeros, err_msg=msg)
+            assert_equal(np.bitwise_and(ones, zeros), zeros, err_msg=msg)
+            assert_equal(np.bitwise_and(ones, ones), ones, err_msg=msg)
+
+    def test_types(self):
+        for dt in self.bitwise_types:
+            zeros = np.array([0], dtype=dt)
+            ones = np.array([-1]).astype(dt)
+            msg = f"dt = '{dt.char}'"
+
+            assert_(np.bitwise_not(zeros).dtype == dt, msg)
+            assert_(np.bitwise_or(zeros, zeros).dtype == dt, msg)
+            assert_(np.bitwise_xor(zeros, zeros).dtype == dt, msg)
+            assert_(np.bitwise_and(zeros, zeros).dtype == dt, msg)
+
+    def test_identity(self):
+        assert_(np.bitwise_or.identity == 0, 'bitwise_or')
+        assert_(np.bitwise_xor.identity == 0, 'bitwise_xor')
+        assert_(np.bitwise_and.identity == -1, 'bitwise_and')
+
+    def test_reduction(self):
+        binary_funcs = (np.bitwise_or, np.bitwise_xor, np.bitwise_and)
+
+        for dt in self.bitwise_types:
+            zeros = np.array([0], dtype=dt)
+            ones = np.array([-1]).astype(dt)
+            for f in binary_funcs:
+                msg = f"dt: '{dt}', f: '{f}'"
+                assert_equal(f.reduce(zeros), zeros, err_msg=msg)
+                assert_equal(f.reduce(ones), ones, err_msg=msg)
+
+        # Test empty reduction, no object dtype
+        for dt in self.bitwise_types[:-1]:
+            # No object array types
+            empty = np.array([], dtype=dt)
+            for f in binary_funcs:
+                msg = f"dt: '{dt}', f: '{f}'"
+                tgt = np.array(f.identity).astype(dt)
+                res = f.reduce(empty)
+                assert_equal(res, tgt, err_msg=msg)
+                assert_(res.dtype == tgt.dtype, msg)
+
+        # Empty object arrays use the identity.  Note that the types may
+        # differ, the actual type used is determined by the assign_identity
+        # function and is not the same as the type returned by the identity
+        # method.
+        for f in binary_funcs:
+            msg = f"dt: '{f}'"
+            empty = np.array([], dtype=object)
+            tgt = f.identity
+            res = f.reduce(empty)
+            assert_equal(res, tgt, err_msg=msg)
+
+        # Non-empty object arrays do not use the identity
+        for f in binary_funcs:
+            msg = f"dt: '{f}'"
+            btype = np.array([True], dtype=object)
+            assert_(type(f.reduce(btype)) is bool, msg)
+
+    @pytest.mark.parametrize("input_dtype_obj, bitsize",
+            zip(bitwise_types, bitwise_bits))
+    def test_bitwise_count(self, input_dtype_obj, bitsize):
+        input_dtype = input_dtype_obj.type
+
+        for i in range(1, bitsize):
+            num = 2**i - 1
+            msg = f"bitwise_count for {num}"
+            assert i == np.bitwise_count(input_dtype(num)), msg
+            if np.issubdtype(
+                input_dtype, np.signedinteger) or input_dtype == np.object_:
+                assert i == np.bitwise_count(input_dtype(-num)), msg
+
+        a = np.array([2**i - 1 for i in range(1, bitsize)], dtype=input_dtype)
+        bitwise_count_a = np.bitwise_count(a)
+        expected = np.arange(1, bitsize, dtype=input_dtype)
+
+        msg = f"array bitwise_count for {input_dtype}"
+        assert all(bitwise_count_a == expected), msg
+
+
+class TestInt:
+    def test_logical_not(self):
+        x = np.ones(10, dtype=np.int16)
+        o = np.ones(10 * 2, dtype=bool)
+        tgt = o.copy()
+        tgt[::2] = False
+        os = o[::2]
+        assert_array_equal(np.logical_not(x, out=os), False)
+        assert_array_equal(o, tgt)
+
+
+class TestFloatingPoint:
+    def test_floating_point(self):
+        assert_equal(ncu.FLOATING_POINT_SUPPORT, 1)
+
+
+class TestDegrees:
+    def test_degrees(self):
+        assert_almost_equal(ncu.degrees(np.pi), 180.0)
+        assert_almost_equal(ncu.degrees(-0.5 * np.pi), -90.0)
+
+
+class TestRadians:
+    def test_radians(self):
+        assert_almost_equal(ncu.radians(180.0), np.pi)
+        assert_almost_equal(ncu.radians(-90.0), -0.5 * np.pi)
+
+
+class TestHeavside:
+    def test_heaviside(self):
+        x = np.array([[-30.0, -0.1, 0.0, 0.2], [7.5, np.nan, np.inf, -np.inf]])
+        expectedhalf = np.array([[0.0, 0.0, 0.5, 1.0], [1.0, np.nan, 1.0, 0.0]])
+        expected1 = expectedhalf.copy()
+        expected1[0, 2] = 1
+
+        h = ncu.heaviside(x, 0.5)
+        assert_equal(h, expectedhalf)
+
+        h = ncu.heaviside(x, 1.0)
+        assert_equal(h, expected1)
+
+        x = x.astype(np.float32)
+
+        h = ncu.heaviside(x, np.float32(0.5))
+        assert_equal(h, expectedhalf.astype(np.float32))
+
+        h = ncu.heaviside(x, np.float32(1.0))
+        assert_equal(h, expected1.astype(np.float32))
+
+
+class TestSign:
+    def test_sign(self):
+        a = np.array([np.inf, -np.inf, np.nan, 0.0, 3.0, -3.0])
+        out = np.zeros(a.shape)
+        tgt = np.array([1., -1., np.nan, 0.0, 1.0, -1.0])
+
+        with np.errstate(invalid='ignore'):
+            res = ncu.sign(a)
+            assert_equal(res, tgt)
+            res = ncu.sign(a, out)
+            assert_equal(res, tgt)
+            assert_equal(out, tgt)
+
+    def test_sign_complex(self):
+        a = np.array([
+            np.inf, -np.inf, complex(0, np.inf), complex(0, -np.inf),
+            complex(np.inf, np.inf), complex(np.inf, -np.inf),  # nan
+            np.nan, complex(0, np.nan), complex(np.nan, np.nan),  # nan
+            0.0,  # 0.
+            3.0, -3.0, -2j, 3.0 + 4.0j, -8.0 + 6.0j
+        ])
+        out = np.zeros(a.shape, a.dtype)
+        tgt = np.array([
+            1., -1., 1j, -1j,
+            ] + [complex(np.nan, np.nan)] * 5 + [
+            0.0,
+            1.0, -1.0, -1j, 0.6 + 0.8j, -0.8 + 0.6j])
+
+        with np.errstate(invalid='ignore'):
+            res = ncu.sign(a)
+            assert_equal(res, tgt)
+            res = ncu.sign(a, out)
+            assert_(res is out)
+            assert_equal(res, tgt)
+
+    def test_sign_dtype_object(self):
+        # In reference to github issue #6229
+
+        foo = np.array([-.1, 0, .1])
+        a = np.sign(foo.astype(object))
+        b = np.sign(foo)
+
+        assert_array_equal(a, b)
+
+    def test_sign_dtype_nan_object(self):
+        # In reference to github issue #6229
+        def test_nan():
+            foo = np.array([np.nan])
+            # FIXME: a not used
+            a = np.sign(foo.astype(object))
+
+        assert_raises(TypeError, test_nan)
+
+class TestMinMax:
+    def test_minmax_blocked(self):
+        # simd tests on max/min, test all alignments, slow but important
+        # for 2 * vz + 2 * (vs - 1) + 1 (unrolled once)
+        for dt, sz in [(np.float32, 15), (np.float64, 7)]:
+            for out, inp, msg in _gen_alignment_data(dtype=dt, type='unary',
+                                                     max_size=sz):
+                for i in range(inp.size):
+                    inp[:] = np.arange(inp.size, dtype=dt)
+                    inp[i] = np.nan
+                    emsg = lambda: f'{inp!r}\n{msg}'
+                    with warnings.catch_warnings():
+                        warnings.filterwarnings(
+                            'ignore',
+                            "invalid value encountered in reduce",
+                            RuntimeWarning)
+                        assert_(np.isnan(inp.max()), msg=emsg)
+                        assert_(np.isnan(inp.min()), msg=emsg)
+
+                    inp[i] = 1e10
+                    assert_equal(inp.max(), 1e10, err_msg=msg)
+                    inp[i] = -1e10
+                    assert_equal(inp.min(), -1e10, err_msg=msg)
+
+    def test_lower_align(self):
+        # check data that is not aligned to element size
+        # i.e doubles are aligned to 4 bytes on i386
+        d = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64)
+        assert_equal(d.max(), d[0])
+        assert_equal(d.min(), d[0])
+
+    def test_reduce_reorder(self):
+        # gh 10370, 11029 Some compilers reorder the call to npy_getfloatstatus
+        # and put it before the call to an intrinsic function that causes
+        # invalid status to be set. Also make sure warnings are not emitted
+        for n in (2, 4, 8, 16, 32):
+            for dt in (np.float32, np.float16, np.complex64):
+                for r in np.diagflat(np.array([np.nan] * n, dtype=dt)):
+                    assert_equal(np.min(r), np.nan)
+
+    def test_minimize_no_warns(self):
+        a = np.minimum(np.nan, 1)
+        assert_equal(a, np.nan)
+
+
+class TestAbsoluteNegative:
+    def test_abs_neg_blocked(self):
+        # simd tests on abs, test all alignments for vz + 2 * (vs - 1) + 1
+        for dt, sz in [(np.float32, 11), (np.float64, 5)]:
+            for out, inp, msg in _gen_alignment_data(dtype=dt, type='unary',
+                                                     max_size=sz):
+                tgt = [ncu.absolute(i) for i in inp]
+                np.absolute(inp, out=out)
+                assert_equal(out, tgt, err_msg=msg)
+                assert_((out >= 0).all())
+
+                tgt = [-1 * (i) for i in inp]
+                np.negative(inp, out=out)
+                assert_equal(out, tgt, err_msg=msg)
+
+                for v in [np.nan, -np.inf, np.inf]:
+                    for i in range(inp.size):
+                        d = np.arange(inp.size, dtype=dt)
+                        inp[:] = -d
+                        inp[i] = v
+                        d[i] = -v if v == -np.inf else v
+                        assert_array_equal(np.abs(inp), d, err_msg=msg)
+                        np.abs(inp, out=out)
+                        assert_array_equal(out, d, err_msg=msg)
+
+                        assert_array_equal(-inp, -1 * inp, err_msg=msg)
+                        d = -1 * inp
+                        np.negative(inp, out=out)
+                        assert_array_equal(out, d, err_msg=msg)
+
+    def test_lower_align(self):
+        # check data that is not aligned to element size
+        # i.e doubles are aligned to 4 bytes on i386
+        d = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64)
+        assert_equal(np.abs(d), d)
+        assert_equal(np.negative(d), -d)
+        np.negative(d, out=d)
+        np.negative(np.ones_like(d), out=d)
+        np.abs(d, out=d)
+        np.abs(np.ones_like(d), out=d)
+
+    @pytest.mark.parametrize("dtype", ['d', 'f', 'int32', 'int64'])
+    @pytest.mark.parametrize("big", [True, False])
+    def test_noncontiguous(self, dtype, big):
+        data = np.array([-1.0, 1.0, -0.0, 0.0, 2.2251e-308, -2.5, 2.5, -6,
+                            6, -2.2251e-308, -8, 10], dtype=dtype)
+        expect = np.array([1.0, -1.0, 0.0, -0.0, -2.2251e-308, 2.5, -2.5, 6,
+                            -6, 2.2251e-308, 8, -10], dtype=dtype)
+        if big:
+            data = np.repeat(data, 10)
+            expect = np.repeat(expect, 10)
+        out = np.ndarray(data.shape, dtype=dtype)
+        ncontig_in = data[1::2]
+        ncontig_out = out[1::2]
+        contig_in = np.array(ncontig_in)
+        # contig in, contig out
+        assert_array_equal(np.negative(contig_in), expect[1::2])
+        # contig in, ncontig out
+        assert_array_equal(np.negative(contig_in, out=ncontig_out),
+                                expect[1::2])
+        # ncontig in, contig out
+        assert_array_equal(np.negative(ncontig_in), expect[1::2])
+        # ncontig in, ncontig out
+        assert_array_equal(np.negative(ncontig_in, out=ncontig_out),
+                                expect[1::2])
+        # contig in, contig out, nd stride
+        data_split = np.array(np.array_split(data, 2))
+        expect_split = np.array(np.array_split(expect, 2))
+        assert_equal(np.negative(data_split), expect_split)
+
+
+class TestPositive:
+    def test_valid(self):
+        valid_dtypes = [int, float, complex, object]
+        for dtype in valid_dtypes:
+            x = np.arange(5, dtype=dtype)
+            result = np.positive(x)
+            assert_equal(x, result, err_msg=str(dtype))
+
+    def test_invalid(self):
+        with assert_raises(TypeError):
+            np.positive(True)
+        with assert_raises(TypeError):
+            np.positive(np.datetime64('2000-01-01'))
+        with assert_raises(TypeError):
+            np.positive(np.array(['foo'], dtype=str))
+        with assert_raises(TypeError):
+            np.positive(np.array(['bar'], dtype=object))
+
+
+class TestSpecialMethods:
+    def test_wrap(self):
+
+        class with_wrap:
+            def __array__(self, dtype=None, copy=None):
+                return np.zeros(1)
+
+            def __array_wrap__(self, arr, context, return_scalar):
+                r = with_wrap()
+                r.arr = arr
+                r.context = context
+                return r
+
+        a = with_wrap()
+        x = ncu.minimum(a, a)
+        assert_equal(x.arr, np.zeros(1))
+        func, args, i = x.context
+        assert_(func is ncu.minimum)
+        assert_equal(len(args), 2)
+        assert_equal(args[0], a)
+        assert_equal(args[1], a)
+        assert_equal(i, 0)
+
+    def test_wrap_out(self):
+        # Calling convention for out should not affect how special methods are
+        # called
+
+        class StoreArrayPrepareWrap(np.ndarray):
+            _wrap_args = None
+            _prepare_args = None
+
+            def __new__(cls):
+                return np.zeros(()).view(cls)
+
+            def __array_wrap__(self, obj, context, return_scalar):
+                self._wrap_args = context[1]
+                return obj
+
+            @property
+            def args(self):
+                # We need to ensure these are fetched at the same time, before
+                # any other ufuncs are called by the assertions
+                return self._wrap_args
+
+            def __repr__(self):
+                return "a"  # for short test output
+
+        def do_test(f_call, f_expected):
+            a = StoreArrayPrepareWrap()
+
+            f_call(a)
+
+            w = a.args
+            expected = f_expected(a)
+            try:
+                assert w == expected
+            except AssertionError as e:
+                # assert_equal produces truly useless error messages
+                raise AssertionError("\n".join([
+                    "Bad arguments passed in ufunc call",
+                    f" expected:              {expected}",
+                    f" __array_wrap__ got:    {w}"
+                ]))
+
+        # method not on the out argument
+        do_test(lambda a: np.add(a, 0), lambda a: (a, 0))
+        do_test(lambda a: np.add(a, 0, None), lambda a: (a, 0))
+        do_test(lambda a: np.add(a, 0, out=None), lambda a: (a, 0))
+        do_test(lambda a: np.add(a, 0, out=(None,)), lambda a: (a, 0))
+
+        # method on the out argument
+        do_test(lambda a: np.add(0, 0, a), lambda a: (0, 0, a))
+        do_test(lambda a: np.add(0, 0, out=a), lambda a: (0, 0, a))
+        do_test(lambda a: np.add(0, 0, out=(a,)), lambda a: (0, 0, a))
+
+        # Also check the where mask handling:
+        out = np.zeros([1], dtype=float)
+        do_test(lambda a: np.add(a, 0, where=False, out=None), lambda a: (a, 0))
+        do_test(lambda a: np.add(0, 0, a, where=False), lambda a: (0, 0, a))
+
+    def test_wrap_with_iterable(self):
+        # test fix for bug #1026:
+
+        class with_wrap(np.ndarray):
+            __array_priority__ = 10
+
+            def __new__(cls):
+                return np.asarray(1).view(cls).copy()
+
+            def __array_wrap__(self, arr, context, return_scalar):
+                return arr.view(type(self))
+
+        a = with_wrap()
+        x = ncu.multiply(a, (1, 2, 3))
+        assert_(isinstance(x, with_wrap))
+        assert_array_equal(x, np.array((1, 2, 3)))
+
+    def test_priority_with_scalar(self):
+        # test fix for bug #826:
+
+        class A(np.ndarray):
+            __array_priority__ = 10
+
+            def __new__(cls):
+                return np.asarray(1.0, 'float64').view(cls).copy()
+
+        a = A()
+        x = np.float64(1) * a
+        assert_(isinstance(x, A))
+        assert_array_equal(x, np.array(1))
+
+    def test_priority(self):
+
+        class A:
+            def __array__(self, dtype=None, copy=None):
+                return np.zeros(1)
+
+            def __array_wrap__(self, arr, context, return_scalar):
+                r = type(self)()
+                r.arr = arr
+                r.context = context
+                return r
+
+        class B(A):
+            __array_priority__ = 20.
+
+        class C(A):
+            __array_priority__ = 40.
+
+        x = np.zeros(1)
+        a = A()
+        b = B()
+        c = C()
+        f = ncu.minimum
+        assert_(type(f(x, x)) is np.ndarray)
+        assert_(type(f(x, a)) is A)
+        assert_(type(f(x, b)) is B)
+        assert_(type(f(x, c)) is C)
+        assert_(type(f(a, x)) is A)
+        assert_(type(f(b, x)) is B)
+        assert_(type(f(c, x)) is C)
+
+        assert_(type(f(a, a)) is A)
+        assert_(type(f(a, b)) is B)
+        assert_(type(f(b, a)) is B)
+        assert_(type(f(b, b)) is B)
+        assert_(type(f(b, c)) is C)
+        assert_(type(f(c, b)) is C)
+        assert_(type(f(c, c)) is C)
+
+        assert_(type(ncu.exp(a) is A))
+        assert_(type(ncu.exp(b) is B))
+        assert_(type(ncu.exp(c) is C))
+
+    def test_failing_wrap(self):
+
+        class A:
+            def __array__(self, dtype=None, copy=None):
+                return np.zeros(2)
+
+            def __array_wrap__(self, arr, context, return_scalar):
+                raise RuntimeError
+
+        a = A()
+        assert_raises(RuntimeError, ncu.maximum, a, a)
+        assert_raises(RuntimeError, ncu.maximum.reduce, a)
+
+    def test_failing_out_wrap(self):
+
+        singleton = np.array([1.0])
+
+        class Ok(np.ndarray):
+            def __array_wrap__(self, obj, context, return_scalar):
+                return singleton
+
+        class Bad(np.ndarray):
+            def __array_wrap__(self, obj, context, return_scalar):
+                raise RuntimeError
+
+        ok = np.empty(1).view(Ok)
+        bad = np.empty(1).view(Bad)
+        # double-free (segfault) of "ok" if "bad" raises an exception
+        for i in range(10):
+            assert_raises(RuntimeError, ncu.frexp, 1, ok, bad)
+
+    def test_none_wrap(self):
+        # Tests that issue #8507 is resolved. Previously, this would segfault
+
+        class A:
+            def __array__(self, dtype=None, copy=None):
+                return np.zeros(1)
+
+            def __array_wrap__(self, arr, context=None, return_scalar=False):
+                return None
+
+        a = A()
+        assert_equal(ncu.maximum(a, a), None)
+
+    def test_default_prepare(self):
+
+        class with_wrap:
+            __array_priority__ = 10
+
+            def __array__(self, dtype=None, copy=None):
+                return np.zeros(1)
+
+            def __array_wrap__(self, arr, context, return_scalar):
+                return arr
+
+        a = with_wrap()
+        x = ncu.minimum(a, a)
+        assert_equal(x, np.zeros(1))
+        assert_equal(type(x), np.ndarray)
+
+    def test_array_too_many_args(self):
+
+        class A:
+            def __array__(self, dtype, context, copy=None):
+                return np.zeros(1)
+
+        a = A()
+        assert_raises_regex(TypeError, '2 required positional', np.sum, a)
+
+    def test_ufunc_override(self):
+        # check override works even with instance with high priority.
+        class A:
+            def __array_ufunc__(self, func, method, *inputs, **kwargs):
+                return self, func, method, inputs, kwargs
+
+        class MyNDArray(np.ndarray):
+            __array_priority__ = 100
+
+        a = A()
+        b = np.array([1]).view(MyNDArray)
+        res0 = np.multiply(a, b)
+        res1 = np.multiply(b, b, out=a)
+
+        # self
+        assert_equal(res0[0], a)
+        assert_equal(res1[0], a)
+        assert_equal(res0[1], np.multiply)
+        assert_equal(res1[1], np.multiply)
+        assert_equal(res0[2], '__call__')
+        assert_equal(res1[2], '__call__')
+        assert_equal(res0[3], (a, b))
+        assert_equal(res1[3], (b, b))
+        assert_equal(res0[4], {})
+        assert_equal(res1[4], {'out': (a,)})
+
+    def test_ufunc_override_mro(self):
+
+        # Some multi arg functions for testing.
+        def tres_mul(a, b, c):
+            return a * b * c
+
+        def quatro_mul(a, b, c, d):
+            return a * b * c * d
+
+        # Make these into ufuncs.
+        three_mul_ufunc = np.frompyfunc(tres_mul, 3, 1)
+        four_mul_ufunc = np.frompyfunc(quatro_mul, 4, 1)
+
+        class A:
+            def __array_ufunc__(self, func, method, *inputs, **kwargs):
+                return "A"
+
+        class ASub(A):
+            def __array_ufunc__(self, func, method, *inputs, **kwargs):
+                return "ASub"
+
+        class B:
+            def __array_ufunc__(self, func, method, *inputs, **kwargs):
+                return "B"
+
+        class C:
+            def __init__(self):
+                self.count = 0
+
+            def __array_ufunc__(self, func, method, *inputs, **kwargs):
+                self.count += 1
+                return NotImplemented
+
+        class CSub(C):
+            def __array_ufunc__(self, func, method, *inputs, **kwargs):
+                self.count += 1
+                return NotImplemented
+
+        a = A()
+        a_sub = ASub()
+        b = B()
+        c = C()
+
+        # Standard
+        res = np.multiply(a, a_sub)
+        assert_equal(res, "ASub")
+        res = np.multiply(a_sub, b)
+        assert_equal(res, "ASub")
+
+        # With 1 NotImplemented
+        res = np.multiply(c, a)
+        assert_equal(res, "A")
+        assert_equal(c.count, 1)
+        # Check our counter works, so we can trust tests below.
+        res = np.multiply(c, a)
+        assert_equal(c.count, 2)
+
+        # Both NotImplemented.
+        c = C()
+        c_sub = CSub()
+        assert_raises(TypeError, np.multiply, c, c_sub)
+        assert_equal(c.count, 1)
+        assert_equal(c_sub.count, 1)
+        c.count = c_sub.count = 0
+        assert_raises(TypeError, np.multiply, c_sub, c)
+        assert_equal(c.count, 1)
+        assert_equal(c_sub.count, 1)
+        c.count = 0
+        assert_raises(TypeError, np.multiply, c, c)
+        assert_equal(c.count, 1)
+        c.count = 0
+        assert_raises(TypeError, np.multiply, 2, c)
+        assert_equal(c.count, 1)
+
+        # Ternary testing.
+        assert_equal(three_mul_ufunc(a, 1, 2), "A")
+        assert_equal(three_mul_ufunc(1, a, 2), "A")
+        assert_equal(three_mul_ufunc(1, 2, a), "A")
+
+        assert_equal(three_mul_ufunc(a, a, 6), "A")
+        assert_equal(three_mul_ufunc(a, 2, a), "A")
+        assert_equal(three_mul_ufunc(a, 2, b), "A")
+        assert_equal(three_mul_ufunc(a, 2, a_sub), "ASub")
+        assert_equal(three_mul_ufunc(a, a_sub, 3), "ASub")
+        c.count = 0
+        assert_equal(three_mul_ufunc(c, a_sub, 3), "ASub")
+        assert_equal(c.count, 1)
+        c.count = 0
+        assert_equal(three_mul_ufunc(1, a_sub, c), "ASub")
+        assert_equal(c.count, 0)
+
+        c.count = 0
+        assert_equal(three_mul_ufunc(a, b, c), "A")
+        assert_equal(c.count, 0)
+        c_sub.count = 0
+        assert_equal(three_mul_ufunc(a, b, c_sub), "A")
+        assert_equal(c_sub.count, 0)
+        assert_equal(three_mul_ufunc(1, 2, b), "B")
+
+        assert_raises(TypeError, three_mul_ufunc, 1, 2, c)
+        assert_raises(TypeError, three_mul_ufunc, c_sub, 2, c)
+        assert_raises(TypeError, three_mul_ufunc, c_sub, 2, 3)
+
+        # Quaternary testing.
+        assert_equal(four_mul_ufunc(a, 1, 2, 3), "A")
+        assert_equal(four_mul_ufunc(1, a, 2, 3), "A")
+        assert_equal(four_mul_ufunc(1, 1, a, 3), "A")
+        assert_equal(four_mul_ufunc(1, 1, 2, a), "A")
+
+        assert_equal(four_mul_ufunc(a, b, 2, 3), "A")
+        assert_equal(four_mul_ufunc(1, a, 2, b), "A")
+        assert_equal(four_mul_ufunc(b, 1, a, 3), "B")
+        assert_equal(four_mul_ufunc(a_sub, 1, 2, a), "ASub")
+        assert_equal(four_mul_ufunc(a, 1, 2, a_sub), "ASub")
+
+        c = C()
+        c_sub = CSub()
+        assert_raises(TypeError, four_mul_ufunc, 1, 2, 3, c)
+        assert_equal(c.count, 1)
+        c.count = 0
+        assert_raises(TypeError, four_mul_ufunc, 1, 2, c_sub, c)
+        assert_equal(c_sub.count, 1)
+        assert_equal(c.count, 1)
+        c2 = C()
+        c.count = c_sub.count = 0
+        assert_raises(TypeError, four_mul_ufunc, 1, c, c_sub, c2)
+        assert_equal(c_sub.count, 1)
+        assert_equal(c.count, 1)
+        assert_equal(c2.count, 0)
+        c.count = c2.count = c_sub.count = 0
+        assert_raises(TypeError, four_mul_ufunc, c2, c, c_sub, c)
+        assert_equal(c_sub.count, 1)
+        assert_equal(c.count, 0)
+        assert_equal(c2.count, 1)
+
+    def test_ufunc_override_methods(self):
+
+        class A:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                return self, ufunc, method, inputs, kwargs
+
+        # __call__
+        a = A()
+        with assert_raises(TypeError):
+            np.multiply.__call__(1, a, foo='bar', answer=42)
+        res = np.multiply.__call__(1, a, subok='bar', where=42)
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], '__call__')
+        assert_equal(res[3], (1, a))
+        assert_equal(res[4], {'subok': 'bar', 'where': 42})
+
+        # __call__, wrong args
+        assert_raises(TypeError, np.multiply, a)
+        assert_raises(TypeError, np.multiply, a, a, a, a)
+        assert_raises(TypeError, np.multiply, a, a, sig='a', signature='a')
+        assert_raises(TypeError, ncu_tests.inner1d, a, a, axis=0, axes=[0, 0])
+
+        # reduce, positional args
+        res = np.multiply.reduce(a, 'axis0', 'dtype0', 'out0', 'keep0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'reduce')
+        assert_equal(res[3], (a,))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'out': ('out0',),
+                              'keepdims': 'keep0',
+                              'axis': 'axis0'})
+
+        # reduce, kwargs
+        res = np.multiply.reduce(a, axis='axis0', dtype='dtype0', out='out0',
+                                 keepdims='keep0', initial='init0',
+                                 where='where0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'reduce')
+        assert_equal(res[3], (a,))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'out': ('out0',),
+                              'keepdims': 'keep0',
+                              'axis': 'axis0',
+                              'initial': 'init0',
+                              'where': 'where0'})
+        # reduce, kwargs, out=None is removed
+        res = np.multiply.reduce(a, axis='axis0', dtype='dtype0', out=None,
+                                 keepdims='keep0', initial='init0',
+                                 where='where0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'reduce')
+        assert_equal(res[3], (a,))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'keepdims': 'keep0',
+                              'axis': 'axis0',
+                              'initial': 'init0',
+                              'where': 'where0'})
+
+        # reduce, output equal to None removed, but not other explicit ones,
+        # even if they are at their default value.
+        res = np.multiply.reduce(a, 0, None, None, False)
+        assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False})
+        res = np.multiply.reduce(a, out=None, axis=0, keepdims=True)
+        assert_equal(res[4], {'axis': 0, 'keepdims': True})
+        res = np.multiply.reduce(a, None, out=(None,), dtype=None)
+        assert_equal(res[4], {'axis': None, 'dtype': None})
+        res = np.multiply.reduce(a, 0, None, None, False, 2, True)
+        assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False,
+                              'initial': 2, 'where': True})
+        # np._NoValue ignored for initial
+        res = np.multiply.reduce(a, 0, None, None, False,
+                                 np._NoValue, True)
+        assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False,
+                              'where': True})
+        # None kept for initial, True for where.
+        res = np.multiply.reduce(a, 0, None, None, False, None, True)
+        assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False,
+                              'initial': None, 'where': True})
+
+        # reduce, wrong args
+        assert_raises(ValueError, np.multiply.reduce, a, out=())
+        assert_raises(ValueError, np.multiply.reduce, a, out=('out0', 'out1'))
+        assert_raises(TypeError, np.multiply.reduce, a, 'axis0', axis='axis0')
+
+        # accumulate, pos args
+        res = np.multiply.accumulate(a, 'axis0', 'dtype0', 'out0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'accumulate')
+        assert_equal(res[3], (a,))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'out': ('out0',),
+                              'axis': 'axis0'})
+
+        # accumulate, kwargs
+        res = np.multiply.accumulate(a, axis='axis0', dtype='dtype0',
+                                     out='out0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'accumulate')
+        assert_equal(res[3], (a,))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'out': ('out0',),
+                              'axis': 'axis0'})
+
+        # accumulate, output equal to None removed.
+        res = np.multiply.accumulate(a, 0, None, None)
+        assert_equal(res[4], {'axis': 0, 'dtype': None})
+        res = np.multiply.accumulate(a, out=None, axis=0, dtype='dtype1')
+        assert_equal(res[4], {'axis': 0, 'dtype': 'dtype1'})
+        res = np.multiply.accumulate(a, None, out=(None,), dtype=None)
+        assert_equal(res[4], {'axis': None, 'dtype': None})
+
+        # accumulate, wrong args
+        assert_raises(ValueError, np.multiply.accumulate, a, out=())
+        assert_raises(ValueError, np.multiply.accumulate, a,
+                      out=('out0', 'out1'))
+        assert_raises(TypeError, np.multiply.accumulate, a,
+                      'axis0', axis='axis0')
+
+        # reduceat, pos args
+        res = np.multiply.reduceat(a, [4, 2], 'axis0', 'dtype0', 'out0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'reduceat')
+        assert_equal(res[3], (a, [4, 2]))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'out': ('out0',),
+                              'axis': 'axis0'})
+
+        # reduceat, kwargs
+        res = np.multiply.reduceat(a, [4, 2], axis='axis0', dtype='dtype0',
+                                   out='out0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'reduceat')
+        assert_equal(res[3], (a, [4, 2]))
+        assert_equal(res[4], {'dtype': 'dtype0',
+                              'out': ('out0',),
+                              'axis': 'axis0'})
+
+        # reduceat, output equal to None removed.
+        res = np.multiply.reduceat(a, [4, 2], 0, None, None)
+        assert_equal(res[4], {'axis': 0, 'dtype': None})
+        res = np.multiply.reduceat(a, [4, 2], axis=None, out=None, dtype='dt')
+        assert_equal(res[4], {'axis': None, 'dtype': 'dt'})
+        res = np.multiply.reduceat(a, [4, 2], None, None, out=(None,))
+        assert_equal(res[4], {'axis': None, 'dtype': None})
+
+        # reduceat, wrong args
+        assert_raises(ValueError, np.multiply.reduce, a, [4, 2], out=())
+        assert_raises(ValueError, np.multiply.reduce, a, [4, 2],
+                      out=('out0', 'out1'))
+        assert_raises(TypeError, np.multiply.reduce, a, [4, 2],
+                      'axis0', axis='axis0')
+
+        # outer
+        res = np.multiply.outer(a, 42)
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'outer')
+        assert_equal(res[3], (a, 42))
+        assert_equal(res[4], {})
+
+        # outer, wrong args
+        assert_raises(TypeError, np.multiply.outer, a)
+        assert_raises(TypeError, np.multiply.outer, a, a, a, a)
+        assert_raises(TypeError, np.multiply.outer, a, a, sig='a', signature='a')
+
+        # at
+        res = np.multiply.at(a, [4, 2], 'b0')
+        assert_equal(res[0], a)
+        assert_equal(res[1], np.multiply)
+        assert_equal(res[2], 'at')
+        assert_equal(res[3], (a, [4, 2], 'b0'))
+
+        # at, wrong args
+        assert_raises(TypeError, np.multiply.at, a)
+        assert_raises(TypeError, np.multiply.at, a, a, a, a)
+
+    def test_ufunc_override_out(self):
+
+        class A:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                return kwargs
+
+        class B:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                return kwargs
+
+        a = A()
+        b = B()
+        res0 = np.multiply(a, b, 'out_arg')
+        res1 = np.multiply(a, b, out='out_arg')
+        res2 = np.multiply(2, b, 'out_arg')
+        res3 = np.multiply(3, b, out='out_arg')
+        res4 = np.multiply(a, 4, 'out_arg')
+        res5 = np.multiply(a, 5, out='out_arg')
+
+        assert_equal(res0['out'][0], 'out_arg')
+        assert_equal(res1['out'][0], 'out_arg')
+        assert_equal(res2['out'][0], 'out_arg')
+        assert_equal(res3['out'][0], 'out_arg')
+        assert_equal(res4['out'][0], 'out_arg')
+        assert_equal(res5['out'][0], 'out_arg')
+
+        # ufuncs with multiple output modf and frexp.
+        res6 = np.modf(a, 'out0', 'out1')
+        res7 = np.frexp(a, 'out0', 'out1')
+        assert_equal(res6['out'][0], 'out0')
+        assert_equal(res6['out'][1], 'out1')
+        assert_equal(res7['out'][0], 'out0')
+        assert_equal(res7['out'][1], 'out1')
+
+        # While we're at it, check that default output is never passed on.
+        assert_(np.sin(a, None) == {})
+        assert_(np.sin(a, out=None) == {})
+        assert_(np.sin(a, out=(None,)) == {})
+        assert_(np.modf(a, None) == {})
+        assert_(np.modf(a, None, None) == {})
+        assert_(np.modf(a, out=(None, None)) == {})
+        with assert_raises(TypeError):
+            # Out argument must be tuple, since there are multiple outputs.
+            np.modf(a, out=None)
+
+        # don't give positional and output argument, or too many arguments.
+        # wrong number of arguments in the tuple is an error too.
+        assert_raises(TypeError, np.multiply, a, b, 'one', out='two')
+        assert_raises(TypeError, np.multiply, a, b, 'one', 'two')
+        assert_raises(ValueError, np.multiply, a, b, out=('one', 'two'))
+        assert_raises(TypeError, np.multiply, a, out=())
+        assert_raises(TypeError, np.modf, a, 'one', out=('two', 'three'))
+        assert_raises(TypeError, np.modf, a, 'one', 'two', 'three')
+        assert_raises(ValueError, np.modf, a, out=('one', 'two', 'three'))
+        assert_raises(ValueError, np.modf, a, out=('one',))
+
+    def test_ufunc_override_where(self):
+
+        class OverriddenArrayOld(np.ndarray):
+
+            def _unwrap(self, objs):
+                cls = type(self)
+                result = []
+                for obj in objs:
+                    if isinstance(obj, cls):
+                        obj = np.array(obj)
+                    elif type(obj) != np.ndarray:
+                        return NotImplemented
+                    result.append(obj)
+                return result
+
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+
+                inputs = self._unwrap(inputs)
+                if inputs is NotImplemented:
+                    return NotImplemented
+
+                kwargs = kwargs.copy()
+                if "out" in kwargs:
+                    kwargs["out"] = self._unwrap(kwargs["out"])[0]
+                    if kwargs["out"] is NotImplemented:
+                        return NotImplemented
+
+                r = super().__array_ufunc__(ufunc, method, *inputs, **kwargs)
+                if r is not NotImplemented:
+                    r = r.view(type(self))
+
+                return r
+
+        class OverriddenArrayNew(OverriddenArrayOld):
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+
+                kwargs = kwargs.copy()
+                if "where" in kwargs:
+                    kwargs["where"] = self._unwrap((kwargs["where"], ))
+                    if kwargs["where"] is NotImplemented:
+                        return NotImplemented
+                    else:
+                        kwargs["where"] = kwargs["where"][0]
+
+                r = super().__array_ufunc__(ufunc, method, *inputs, **kwargs)
+                if r is not NotImplemented:
+                    r = r.view(type(self))
+
+                return r
+
+        ufunc = np.negative
+
+        array = np.array([1, 2, 3])
+        where = np.array([True, False, True])
+        out = np.zeros(3, dtype=array.dtype)
+        expected = ufunc(array, where=where, out=out)
+
+        with pytest.raises(TypeError):
+            ufunc(
+                array,
+                where=where.view(OverriddenArrayOld),
+                out=out,
+            )
+
+        result_1 = ufunc(
+            array,
+            where=where.view(OverriddenArrayNew),
+            out=out,
+        )
+        assert isinstance(result_1, OverriddenArrayNew)
+        assert np.all(np.array(result_1) == expected, where=where)
+
+        result_2 = ufunc(
+            array.view(OverriddenArrayNew),
+            where=where.view(OverriddenArrayNew),
+            out=out.view(OverriddenArrayNew),
+        )
+        assert isinstance(result_2, OverriddenArrayNew)
+        assert np.all(np.array(result_2) == expected, where=where)
+
+    def test_ufunc_override_exception(self):
+
+        class A:
+            def __array_ufunc__(self, *a, **kwargs):
+                raise ValueError("oops")
+
+        a = A()
+        assert_raises(ValueError, np.negative, 1, out=a)
+        assert_raises(ValueError, np.negative, a)
+        assert_raises(ValueError, np.divide, 1., a)
+
+    def test_ufunc_override_not_implemented(self):
+
+        class A:
+            def __array_ufunc__(self, *args, **kwargs):
+                return NotImplemented
+
+        msg = ("operand type(s) all returned NotImplemented from "
+               "__array_ufunc__(<ufunc 'negative'>, '__call__', <*>): 'A'")
+        with assert_raises_regex(TypeError, fnmatch.translate(msg)):
+            np.negative(A())
+
+        msg = ("operand type(s) all returned NotImplemented from "
+               "__array_ufunc__(<ufunc 'add'>, '__call__', <*>, <object *>, "
+               "out=(1,)): 'A', 'object', 'int'")
+        with assert_raises_regex(TypeError, fnmatch.translate(msg)):
+            np.add(A(), object(), out=1)
+
+    def test_ufunc_override_disabled(self):
+
+        class OptOut:
+            __array_ufunc__ = None
+
+        opt_out = OptOut()
+
+        # ufuncs always raise
+        msg = "operand 'OptOut' does not support ufuncs"
+        with assert_raises_regex(TypeError, msg):
+            np.add(opt_out, 1)
+        with assert_raises_regex(TypeError, msg):
+            np.add(1, opt_out)
+        with assert_raises_regex(TypeError, msg):
+            np.negative(opt_out)
+
+        # opt-outs still hold even when other arguments have pathological
+        # __array_ufunc__ implementations
+
+        class GreedyArray:
+            def __array_ufunc__(self, *args, **kwargs):
+                return self
+
+        greedy = GreedyArray()
+        assert_(np.negative(greedy) is greedy)
+        with assert_raises_regex(TypeError, msg):
+            np.add(greedy, opt_out)
+        with assert_raises_regex(TypeError, msg):
+            np.add(greedy, 1, out=opt_out)
+
+    def test_gufunc_override(self):
+        # gufunc are just ufunc instances, but follow a different path,
+        # so check __array_ufunc__ overrides them properly.
+        class A:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                return self, ufunc, method, inputs, kwargs
+
+        inner1d = ncu_tests.inner1d
+        a = A()
+        res = inner1d(a, a)
+        assert_equal(res[0], a)
+        assert_equal(res[1], inner1d)
+        assert_equal(res[2], '__call__')
+        assert_equal(res[3], (a, a))
+        assert_equal(res[4], {})
+
+        res = inner1d(1, 1, out=a)
+        assert_equal(res[0], a)
+        assert_equal(res[1], inner1d)
+        assert_equal(res[2], '__call__')
+        assert_equal(res[3], (1, 1))
+        assert_equal(res[4], {'out': (a,)})
+
+        # wrong number of arguments in the tuple is an error too.
+        assert_raises(TypeError, inner1d, a, out='two')
+        assert_raises(TypeError, inner1d, a, a, 'one', out='two')
+        assert_raises(TypeError, inner1d, a, a, 'one', 'two')
+        assert_raises(ValueError, inner1d, a, a, out=('one', 'two'))
+        assert_raises(ValueError, inner1d, a, a, out=())
+
+    def test_ufunc_override_with_super(self):
+        # NOTE: this class is used in doc/source/user/basics.subclassing.rst
+        # if you make any changes here, do update it there too.
+        class A(np.ndarray):
+            def __array_ufunc__(self, ufunc, method, *inputs, out=None, **kwargs):
+                args = []
+                in_no = []
+                for i, input_ in enumerate(inputs):
+                    if isinstance(input_, A):
+                        in_no.append(i)
+                        args.append(input_.view(np.ndarray))
+                    else:
+                        args.append(input_)
+
+                outputs = out
+                out_no = []
+                if outputs:
+                    out_args = []
+                    for j, output in enumerate(outputs):
+                        if isinstance(output, A):
+                            out_no.append(j)
+                            out_args.append(output.view(np.ndarray))
+                        else:
+                            out_args.append(output)
+                    kwargs['out'] = tuple(out_args)
+                else:
+                    outputs = (None,) * ufunc.nout
+
+                info = {}
+                if in_no:
+                    info['inputs'] = in_no
+                if out_no:
+                    info['outputs'] = out_no
+
+                results = super().__array_ufunc__(ufunc, method,
+                                                  *args, **kwargs)
+                if results is NotImplemented:
+                    return NotImplemented
+
+                if method == 'at':
+                    if isinstance(inputs[0], A):
+                        inputs[0].info = info
+                    return
+
+                if ufunc.nout == 1:
+                    results = (results,)
+
+                results = tuple((np.asarray(result).view(A)
+                                 if output is None else output)
+                                for result, output in zip(results, outputs))
+                if results and isinstance(results[0], A):
+                    results[0].info = info
+
+                return results[0] if len(results) == 1 else results
+
+        class B:
+            def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+                if any(isinstance(input_, A) for input_ in inputs):
+                    return "A!"
+                else:
+                    return NotImplemented
+
+        d = np.arange(5.)
+        # 1 input, 1 output
+        a = np.arange(5.).view(A)
+        b = np.sin(a)
+        check = np.sin(d)
+        assert_(np.all(check == b))
+        assert_equal(b.info, {'inputs': [0]})
+        b = np.sin(d, out=(a,))
+        assert_(np.all(check == b))
+        assert_equal(b.info, {'outputs': [0]})
+        assert_(b is a)
+        a = np.arange(5.).view(A)
+        b = np.sin(a, out=a)
+        assert_(np.all(check == b))
+        assert_equal(b.info, {'inputs': [0], 'outputs': [0]})
+
+        # 1 input, 2 outputs
+        a = np.arange(5.).view(A)
+        b1, b2 = np.modf(a)
+        assert_equal(b1.info, {'inputs': [0]})
+        b1, b2 = np.modf(d, out=(None, a))
+        assert_(b2 is a)
+        assert_equal(b1.info, {'outputs': [1]})
+        a = np.arange(5.).view(A)
+        b = np.arange(5.).view(A)
+        c1, c2 = np.modf(a, out=(a, b))
+        assert_(c1 is a)
+        assert_(c2 is b)
+        assert_equal(c1.info, {'inputs': [0], 'outputs': [0, 1]})
+
+        # 2 input, 1 output
+        a = np.arange(5.).view(A)
+        b = np.arange(5.).view(A)
+        c = np.add(a, b, out=a)
+        assert_(c is a)
+        assert_equal(c.info, {'inputs': [0, 1], 'outputs': [0]})
+        # some tests with a non-ndarray subclass
+        a = np.arange(5.)
+        b = B()
+        assert_(a.__array_ufunc__(np.add, '__call__', a, b) is NotImplemented)
+        assert_(b.__array_ufunc__(np.add, '__call__', a, b) is NotImplemented)
+        assert_raises(TypeError, np.add, a, b)
+        a = a.view(A)
+        assert_(a.__array_ufunc__(np.add, '__call__', a, b) is NotImplemented)
+        assert_(b.__array_ufunc__(np.add, '__call__', a, b) == "A!")
+        assert_(np.add(a, b) == "A!")
+        # regression check for gh-9102 -- tests ufunc.reduce implicitly.
+        d = np.array([[1, 2, 3], [1, 2, 3]])
+        a = d.view(A)
+        c = a.any()
+        check = d.any()
+        assert_equal(c, check)
+        assert_(c.info, {'inputs': [0]})
+        c = a.max()
+        check = d.max()
+        assert_equal(c, check)
+        assert_(c.info, {'inputs': [0]})
+        b = np.array(0).view(A)
+        c = a.max(out=b)
+        assert_equal(c, check)
+        assert_(c is b)
+        assert_(c.info, {'inputs': [0], 'outputs': [0]})
+        check = a.max(axis=0)
+        b = np.zeros_like(check).view(A)
+        c = a.max(axis=0, out=b)
+        assert_equal(c, check)
+        assert_(c is b)
+        assert_(c.info, {'inputs': [0], 'outputs': [0]})
+        # simple explicit tests of reduce, accumulate, reduceat
+        check = np.add.reduce(d, axis=1)
+        c = np.add.reduce(a, axis=1)
+        assert_equal(c, check)
+        assert_(c.info, {'inputs': [0]})
+        b = np.zeros_like(c)
+        c = np.add.reduce(a, 1, None, b)
+        assert_equal(c, check)
+        assert_(c is b)
+        assert_(c.info, {'inputs': [0], 'outputs': [0]})
+        check = np.add.accumulate(d, axis=0)
+        c = np.add.accumulate(a, axis=0)
+        assert_equal(c, check)
+        assert_(c.info, {'inputs': [0]})
+        b = np.zeros_like(c)
+        c = np.add.accumulate(a, 0, None, b)
+        assert_equal(c, check)
+        assert_(c is b)
+        assert_(c.info, {'inputs': [0], 'outputs': [0]})
+        indices = [0, 2, 1]
+        check = np.add.reduceat(d, indices, axis=1)
+        c = np.add.reduceat(a, indices, axis=1)
+        assert_equal(c, check)
+        assert_(c.info, {'inputs': [0]})
+        b = np.zeros_like(c)
+        c = np.add.reduceat(a, indices, 1, None, b)
+        assert_equal(c, check)
+        assert_(c is b)
+        assert_(c.info, {'inputs': [0], 'outputs': [0]})
+        # and a few tests for at
+        d = np.array([[1, 2, 3], [1, 2, 3]])
+        check = d.copy()
+        a = d.copy().view(A)
+        np.add.at(check, ([0, 1], [0, 2]), 1.)
+        np.add.at(a, ([0, 1], [0, 2]), 1.)
+        assert_equal(a, check)
+        assert_(a.info, {'inputs': [0]})
+        b = np.array(1.).view(A)
+        a = d.copy().view(A)
+        np.add.at(a, ([0, 1], [0, 2]), b)
+        assert_equal(a, check)
+        assert_(a.info, {'inputs': [0, 2]})
+
+    def test_array_ufunc_direct_call(self):
+        # This is mainly a regression test for gh-24023 (shouldn't segfault)
+        a = np.array(1)
+        with pytest.raises(TypeError):
+            a.__array_ufunc__()
+
+        # No kwargs means kwargs may be NULL on the C-level
+        with pytest.raises(TypeError):
+            a.__array_ufunc__(1, 2)
+
+        # And the same with a valid call:
+        res = a.__array_ufunc__(np.add, "__call__", a, a)
+        assert_array_equal(res, a + a)
+
+    @pytest.mark.thread_unsafe(reason="modifies global module")
+    @pytest.mark.skipif(IS_PYPY, reason="__signature__ descriptor dance fails")
+    def test_ufunc_docstring(self):
+        original_doc = np.add.__doc__
+        new_doc = "new docs"
+        expected_dict = (
+            {} if IS_PYPY else {"__module__": "numpy", "__qualname__": "add"}
+        )
+        expected_dict["__signature__"] = inspect.signature(np.add)
+
+        np.add.__doc__ = new_doc
+        assert np.add.__doc__ == new_doc
+        assert np.add.__dict__["__doc__"] == new_doc
+
+        del np.add.__doc__
+        assert np.add.__doc__ == original_doc
+        assert np.add.__dict__ == expected_dict
+
+        np.add.__dict__["other"] = 1
+        np.add.__dict__["__doc__"] = new_doc
+        assert np.add.__doc__ == new_doc
+
+        del np.add.__dict__["__doc__"]
+        assert np.add.__doc__ == original_doc
+        del np.add.__dict__["other"]
+        assert np.add.__dict__ == expected_dict
+
+
+class TestChoose:
+    def test_mixed(self):
+        c = np.array([True, True])
+        a = np.array([True, True])
+        assert_equal(np.choose(c, (a, 1)), np.array([1, 1]))
+
+
+class TestRationalFunctions:
+    def test_lcm(self):
+        self._test_lcm_inner(np.int16)
+        self._test_lcm_inner(np.uint16)
+
+    def test_lcm_object(self):
+        self._test_lcm_inner(np.object_)
+
+    def test_gcd(self):
+        self._test_gcd_inner(np.int16)
+        self._test_lcm_inner(np.uint16)
+
+    def test_gcd_object(self):
+        self._test_gcd_inner(np.object_)
+
+    def _test_lcm_inner(self, dtype):
+        # basic use
+        a = np.array([12, 120], dtype=dtype)
+        b = np.array([20, 200], dtype=dtype)
+        assert_equal(np.lcm(a, b), [60, 600])
+
+        if not issubclass(dtype, np.unsignedinteger):
+            # negatives are ignored
+            a = np.array([12, -12,  12, -12], dtype=dtype)
+            b = np.array([20,  20, -20, -20], dtype=dtype)
+            assert_equal(np.lcm(a, b), [60] * 4)
+
+        # reduce
+        a = np.array([3, 12, 20], dtype=dtype)
+        assert_equal(np.lcm.reduce([3, 12, 20]), 60)
+
+        # broadcasting, and a test including 0
+        a = np.arange(6).astype(dtype)
+        b = 20
+        assert_equal(np.lcm(a, b), [0, 20, 20, 60, 20, 20])
+
+    def _test_gcd_inner(self, dtype):
+        # basic use
+        a = np.array([12, 120], dtype=dtype)
+        b = np.array([20, 200], dtype=dtype)
+        assert_equal(np.gcd(a, b), [4, 40])
+
+        if not issubclass(dtype, np.unsignedinteger):
+            # negatives are ignored
+            a = np.array([12, -12,  12, -12], dtype=dtype)
+            b = np.array([20,  20, -20, -20], dtype=dtype)
+            assert_equal(np.gcd(a, b), [4] * 4)
+
+        # reduce
+        a = np.array([15, 25, 35], dtype=dtype)
+        assert_equal(np.gcd.reduce(a), 5)
+
+        # broadcasting, and a test including 0
+        a = np.arange(6).astype(dtype)
+        b = 20
+        assert_equal(np.gcd(a, b), [20,  1,  2,  1,  4,  5])
+
+    def test_lcm_overflow(self):
+        # verify that we don't overflow when a*b does overflow
+        big = np.int32(np.iinfo(np.int32).max // 11)
+        a = 2 * big
+        b = 5 * big
+        assert_equal(np.lcm(a, b), 10 * big)
+
+    def test_gcd_overflow(self):
+        for dtype in (np.int32, np.int64):
+            # verify that we don't overflow when taking abs(x)
+            # not relevant for lcm, where the result is unrepresentable anyway
+            a = dtype(np.iinfo(dtype).min)  # negative power of two
+            q = -(a // 4)
+            assert_equal(np.gcd(a,  q * 3), q)
+            assert_equal(np.gcd(a, -q * 3), q)
+
+    def test_decimal(self):
+        from decimal import Decimal
+        a = np.array([1,  1, -1, -1]) * Decimal('0.20')
+        b = np.array([1, -1,  1, -1]) * Decimal('0.12')
+
+        assert_equal(np.gcd(a, b), 4 * [Decimal('0.04')])
+        assert_equal(np.lcm(a, b), 4 * [Decimal('0.60')])
+
+    def test_float(self):
+        # not well-defined on float due to rounding errors
+        assert_raises(TypeError, np.gcd, 0.3, 0.4)
+        assert_raises(TypeError, np.lcm, 0.3, 0.4)
+
+    def test_huge_integers(self):
+        # Converting to an array first is a bit different as it means we
+        # have an explicit object dtype:
+        assert_equal(np.array(2**200), 2**200)
+        # Special promotion rules should ensure that this also works for
+        # two Python integers (even if slow).
+        # (We do this for comparisons, as the result is always bool and
+        # we also special case array comparisons with Python integers)
+        np.equal(2**200, 2**200)
+
+        # But, we cannot do this when it would affect the result dtype:
+        with pytest.raises(OverflowError):
+            np.gcd(2**100, 3**100)
+
+        # Asking for `object` explicitly is fine, though:
+        assert np.gcd(2**100, 3**100, dtype=object) == 1
+
+        # As of now, the below work, because it is using arrays (which
+        # will be object arrays)
+        a = np.array(2**100 * 3**5)
+        b = np.array([2**100 * 5**7, 2**50 * 3**10])
+        assert_equal(np.gcd(a, b), [2**100,               2**50 * 3**5])
+        assert_equal(np.lcm(a, b), [2**100 * 3**5 * 5**7, 2**100 * 3**10])
+
+    def test_inf_and_nan(self):
+        inf = np.array([np.inf], dtype=np.object_)
+        assert_raises(ValueError, np.gcd, inf, 1)
+        assert_raises(ValueError, np.gcd, 1, inf)
+        assert_raises(ValueError, np.gcd, np.nan, inf)
+        assert_raises(TypeError, np.gcd, 4, float(np.inf))
+
+
+class TestRoundingFunctions:
+
+    def test_object_direct(self):
+        """ test direct implementation of these magic methods """
+        class C:
+            def __floor__(self):
+                return 1
+
+            def __ceil__(self):
+                return 2
+
+            def __trunc__(self):
+                return 3
+
+        arr = np.array([C(), C()])
+        assert_equal(np.floor(arr), [1, 1])
+        assert_equal(np.ceil(arr),  [2, 2])
+        assert_equal(np.trunc(arr), [3, 3])
+
+    def test_object_indirect(self):
+        """ test implementations via __float__ """
+        class C:
+            def __float__(self):
+                return -2.5
+
+        arr = np.array([C(), C()])
+        assert_equal(np.floor(arr), [-3, -3])
+        assert_equal(np.ceil(arr),  [-2, -2])
+        with pytest.raises(TypeError):
+            np.trunc(arr)  # consistent with math.trunc
+
+    def test_fraction(self):
+        f = Fraction(-4, 3)
+        assert_equal(np.floor(f), -2)
+        assert_equal(np.ceil(f), -1)
+        assert_equal(np.trunc(f), -1)
+
+    @pytest.mark.parametrize('func', [np.floor, np.ceil, np.trunc])
+    @pytest.mark.parametrize('dtype', [np.bool, np.float64, np.float32,
+                                       np.int64, np.uint32])
+    def test_output_dtype(self, func, dtype):
+        arr = np.array([-2, 0, 4, 8]).astype(dtype)
+        result = func(arr)
+        assert_equal(arr, result)
+        assert result.dtype == dtype
+
+
+class TestComplexFunctions:
+    funcs = [np.arcsin,  np.arccos,  np.arctan, np.arcsinh, np.arccosh,
+             np.arctanh, np.sin,     np.cos,    np.tan,     np.exp,
+             np.exp2,    np.log,     np.sqrt,   np.log10,   np.log2,
+             np.log1p]
+
+    def test_it(self):
+        for f in self.funcs:
+            if f is np.arccosh:
+                x = 1.5
+            else:
+                x = .5
+            fr = f(x)
+            fz = f(complex(x))
+            assert_almost_equal(fz.real, fr, err_msg=f'real part {f}')
+            assert_almost_equal(fz.imag, 0., err_msg=f'imag part {f}')
+
+    @pytest.mark.xfail(IS_WASM, reason="doesn't work")
+    def test_precisions_consistent(self):
+        z = 1 + 1j
+        for f in self.funcs:
+            fcf = f(np.csingle(z))
+            fcd = f(np.cdouble(z))
+            fcl = f(np.clongdouble(z))
+            assert_almost_equal(fcf, fcd, decimal=6, err_msg=f'fch-fcd {f}')
+            assert_almost_equal(fcl, fcd, decimal=15, err_msg=f'fch-fcl {f}')
+
+    @pytest.mark.xfail(IS_WASM, reason="doesn't work")
+    def test_branch_cuts(self):
+        # check branch cuts and continuity on them
+        _check_branch_cut(np.log,   -0.5, 1j, 1, -1, True)  # noqa: E221
+        _check_branch_cut(np.log2,  -0.5, 1j, 1, -1, True)  # noqa: E221
+        _check_branch_cut(np.log10, -0.5, 1j, 1, -1, True)
+        _check_branch_cut(np.log1p, -1.5, 1j, 1, -1, True)
+        _check_branch_cut(np.sqrt,  -0.5, 1j, 1, -1, True)  # noqa: E221
+
+        _check_branch_cut(np.arcsin, [ -2, 2],   [1j, 1j], 1, -1, True)
+        _check_branch_cut(np.arccos, [ -2, 2],   [1j, 1j], 1, -1, True)
+        _check_branch_cut(np.arctan, [0 - 2j, 2j],  [1,  1], -1, 1, True)
+
+        _check_branch_cut(np.arcsinh, [0 - 2j,  2j], [1,   1], -1, 1, True)
+        _check_branch_cut(np.arccosh, [ -1, 0.5], [1j,  1j], 1, -1, True)
+        _check_branch_cut(np.arctanh, [ -2,   2], [1j, 1j], 1, -1, True)
+
+        # check against bogus branch cuts: assert continuity between quadrants
+        _check_branch_cut(np.arcsin, [0 - 2j, 2j], [ 1,  1], 1, 1)
+        _check_branch_cut(np.arccos, [0 - 2j, 2j], [ 1,  1], 1, 1)
+        _check_branch_cut(np.arctan, [ -2,  2], [1j, 1j], 1, 1)
+
+        _check_branch_cut(np.arcsinh, [ -2,  2, 0], [1j, 1j, 1], 1, 1)
+        _check_branch_cut(np.arccosh, [0 - 2j, 2j, 2], [1,  1,  1j], 1, 1)
+        _check_branch_cut(np.arctanh, [0 - 2j, 2j, 0], [1,  1,  1j], 1, 1)
+
+    @pytest.mark.xfail(IS_WASM, reason="doesn't work")
+    def test_branch_cuts_complex64(self):
+        # check branch cuts and continuity on them
+        _check_branch_cut(np.log,   -0.5, 1j, 1, -1, True, np.complex64)  # noqa: E221
+        _check_branch_cut(np.log2,  -0.5, 1j, 1, -1, True, np.complex64)  # noqa: E221
+        _check_branch_cut(np.log10, -0.5, 1j, 1, -1, True, np.complex64)
+        _check_branch_cut(np.log1p, -1.5, 1j, 1, -1, True, np.complex64)
+        _check_branch_cut(np.sqrt,  -0.5, 1j, 1, -1, True, np.complex64)  # noqa: E221
+
+        _check_branch_cut(np.arcsin, [ -2, 2],   [1j, 1j], 1, -1, True, np.complex64)
+        _check_branch_cut(np.arccos, [ -2, 2],   [1j, 1j], 1, -1, True, np.complex64)
+        _check_branch_cut(np.arctan, [0 - 2j, 2j],  [1,  1], -1, 1, True, np.complex64)
+
+        _check_branch_cut(np.arcsinh, [0 - 2j,  2j], [1,   1], -1, 1, True, np.complex64)
+        _check_branch_cut(np.arccosh, [ -1, 0.5], [1j,  1j], 1, -1, True, np.complex64)
+        _check_branch_cut(np.arctanh, [ -2,   2], [1j, 1j], 1, -1, True, np.complex64)
+
+        # check against bogus branch cuts: assert continuity between quadrants
+        _check_branch_cut(np.arcsin, [0 - 2j, 2j], [ 1,  1], 1, 1, False, np.complex64)
+        _check_branch_cut(np.arccos, [0 - 2j, 2j], [ 1,  1], 1, 1, False, np.complex64)
+        _check_branch_cut(np.arctan, [ -2,  2], [1j, 1j], 1, 1, False, np.complex64)
+
+        _check_branch_cut(np.arcsinh, [ -2,  2, 0], [1j, 1j, 1], 1, 1, False, np.complex64)
+        _check_branch_cut(np.arccosh, [0 - 2j, 2j, 2], [1,  1,  1j], 1, 1, False, np.complex64)
+        _check_branch_cut(np.arctanh, [0 - 2j, 2j, 0], [1,  1,  1j], 1, 1, False, np.complex64)
+
+    def test_against_cmath(self):
+        import cmath
+
+        points = [-1 - 1j, -1 + 1j, +1 - 1j, +1 + 1j]
+        name_map = {'arcsin': 'asin', 'arccos': 'acos', 'arctan': 'atan',
+                    'arcsinh': 'asinh', 'arccosh': 'acosh', 'arctanh': 'atanh'}
+        atol = 4 * np.finfo(complex).eps
+        for func in self.funcs:
+            fname = func.__name__.split('.')[-1]
+            cname = name_map.get(fname, fname)
+            try:
+                cfunc = getattr(cmath, cname)
+            except AttributeError:
+                continue
+            for p in points:
+                a = complex(func(np.complex128(p)))
+                b = cfunc(p)
+                assert_(
+                    abs(a - b) < atol,
+                    f"{fname} {p}: {a}; cmath: {b}"
+                )
+
+    @pytest.mark.xfail(
+        # manylinux2014 uses glibc2.17
+        _glibc_older_than("2.18"),
+        reason="Older glibc versions are imprecise (maybe passes with SIMD?)"
+    )
+    @pytest.mark.xfail(IS_WASM, reason="doesn't work")
+    @pytest.mark.parametrize('dtype', [
+        np.complex64, np.complex128, np.clongdouble
+    ])
+    def test_loss_of_precision(self, dtype):
+        """Check loss of precision in complex arc* functions"""
+        if dtype is np.clongdouble and platform.machine() != 'x86_64':
+            # Failures on musllinux, aarch64, s390x, ppc64le (see gh-17554)
+            pytest.skip('Only works reliably for x86-64 and recent glibc')
+
+        # Check against known-good functions
+
+        info = np.finfo(dtype)
+        real_dtype = dtype(0.).real.dtype
+        eps = info.eps
+
+        def check(x, rtol):
+            x = x.astype(real_dtype)
+
+            z = x.astype(dtype)
+            d = np.absolute(np.arcsinh(x) / np.arcsinh(z).real - 1)
+            assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(),
+                                      'arcsinh'))
+
+            z = (1j * x).astype(dtype)
+            d = np.absolute(np.arcsinh(x) / np.arcsin(z).imag - 1)
+            assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(),
+                                      'arcsin'))
+
+            z = x.astype(dtype)
+            d = np.absolute(np.arctanh(x) / np.arctanh(z).real - 1)
+            assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(),
+                                      'arctanh'))
+
+            z = (1j * x).astype(dtype)
+            d = np.absolute(np.arctanh(x) / np.arctan(z).imag - 1)
+            assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(),
+                                      'arctan'))
+
+        # The switchover was chosen as 1e-3; hence there can be up to
+        # ~eps/1e-3 of relative cancellation error before it
+
+        x_series = np.logspace(-20, -3.001, 200)
+        x_basic = np.logspace(-2.999, 0, 10, endpoint=False)
+
+        if dtype is np.clongdouble:
+            if bad_arcsinh():
+                pytest.skip("Trig functions of np.clongdouble values known "
+                            "to be inaccurate on aarch64 and PPC for some "
+                            "compilation configurations.")
+            # It's not guaranteed that the system-provided arc functions
+            # are accurate down to a few epsilons. (Eg. on Linux 64-bit)
+            # So, give more leeway for long complex tests here:
+            check(x_series, 50.0 * eps)
+        else:
+            check(x_series, 2.1 * eps)
+        check(x_basic, 2.0 * eps / 1e-3)
+
+        # Check a few points
+
+        z = np.array([1e-5 * (1 + 1j)], dtype=dtype)
+        p = 9.999999999333333333e-6 + 1.000000000066666666e-5j
+        d = np.absolute(1 - np.arctanh(z) / p)
+        assert_(np.all(d < 1e-15))
+
+        p = 1.0000000000333333333e-5 + 9.999999999666666667e-6j
+        d = np.absolute(1 - np.arcsinh(z) / p)
+        assert_(np.all(d < 1e-15))
+
+        p = 9.999999999333333333e-6j + 1.000000000066666666e-5
+        d = np.absolute(1 - np.arctan(z) / p)
+        assert_(np.all(d < 1e-15))
+
+        p = 1.0000000000333333333e-5j + 9.999999999666666667e-6
+        d = np.absolute(1 - np.arcsin(z) / p)
+        assert_(np.all(d < 1e-15))
+
+        # Check continuity across switchover points
+
+        def check(func, z0, d=1):
+            z0 = np.asarray(z0, dtype=dtype)
+            zp = z0 + abs(z0) * d * eps * 2
+            zm = z0 - abs(z0) * d * eps * 2
+            assert_(np.all(zp != zm), (zp, zm))
+
+            # NB: the cancellation error at the switchover is at least eps
+            good = (abs(func(zp) - func(zm)) < 2 * eps)
+            assert_(np.all(good), (func, z0[~good]))
+
+        for func in (np.arcsinh, np.arcsinh, np.arcsin, np.arctanh, np.arctan):
+            pts = [rp + 1j * ip for rp in (-1e-3, 0, 1e-3) for ip in (-1e-3, 0, 1e-3)
+                   if rp != 0 or ip != 0]
+            check(func, pts, 1)
+            check(func, pts, 1j)
+            check(func, pts, 1 + 1j)
+
+    @np.errstate(all="ignore")
+    def test_promotion_corner_cases(self):
+        for func in self.funcs:
+            assert func(np.float16(1)).dtype == np.float16
+            # Integer to low precision float promotion is a dubious choice:
+            assert func(np.uint8(1)).dtype == np.float16
+            assert func(np.int16(1)).dtype == np.float32
+
+
+class TestAttributes:
+    def test_attributes(self):
+        add = ncu.add
+        assert_equal(add.__name__, 'add')
+        assert_(add.ntypes >= 18)  # don't fail if types added
+        assert_('ii->i' in add.types)
+        assert_equal(add.nin, 2)
+        assert_equal(add.nout, 1)
+        assert_equal(add.identity, 0)
+
+    def test_doc(self):
+        # don't bother checking the long list of kwargs, which are likely to
+        # change
+        assert_(ncu.add.__doc__.startswith(
+            "add(x1, x2, /, out=None, *, where=True"))
+        assert_(ncu.frexp.__doc__.startswith(
+            "frexp(x[, out1, out2], / [, out=(None, None)], *, where=True"))
+
+
+class TestSubclass:
+
+    def test_subclass_op(self):
+
+        class simple(np.ndarray):
+            def __new__(subtype, shape):
+                self = np.ndarray.__new__(subtype, shape, dtype=object)
+                self.fill(0)
+                return self
+
+        a = simple((3, 4))
+        assert_equal(a + a, a)
+
+
+class TestFrompyfunc:
+
+    def test_identity(self):
+        def mul(a, b):
+            return a * b
+
+        # with identity=value
+        mul_ufunc = np.frompyfunc(mul, nin=2, nout=1, identity=1)
+        assert_equal(mul_ufunc.reduce([2, 3, 4]), 24)
+        assert_equal(mul_ufunc.reduce(np.ones((2, 2)), axis=(0, 1)), 1)
+        assert_equal(mul_ufunc.reduce([]), 1)
+
+        # with identity=None (reorderable)
+        mul_ufunc = np.frompyfunc(mul, nin=2, nout=1, identity=None)
+        assert_equal(mul_ufunc.reduce([2, 3, 4]), 24)
+        assert_equal(mul_ufunc.reduce(np.ones((2, 2)), axis=(0, 1)), 1)
+        assert_raises(ValueError, lambda: mul_ufunc.reduce([]))
+
+        # with no identity (not reorderable)
+        mul_ufunc = np.frompyfunc(mul, nin=2, nout=1)
+        assert_equal(mul_ufunc.reduce([2, 3, 4]), 24)
+        assert_raises(ValueError, lambda: mul_ufunc.reduce(np.ones((2, 2)), axis=(0, 1)))
+        assert_raises(ValueError, lambda: mul_ufunc.reduce([]))
+
+
+def _check_branch_cut(f, x0, dx, re_sign=1, im_sign=-1, sig_zero_ok=False,
+                      dtype=complex):
+    """
+    Check for a branch cut in a function.
+
+    Assert that `x0` lies on a branch cut of function `f` and `f` is
+    continuous from the direction `dx`.
+
+    Parameters
+    ----------
+    f : func
+        Function to check
+    x0 : array-like
+        Point on branch cut
+    dx : array-like
+        Direction to check continuity in
+    re_sign, im_sign : {1, -1}
+        Change of sign of the real or imaginary part expected
+    sig_zero_ok : bool
+        Whether to check if the branch cut respects signed zero (if applicable)
+    dtype : dtype
+        Dtype to check (should be complex)
+
+    """
+    x0 = np.atleast_1d(x0).astype(dtype)
+    dx = np.atleast_1d(dx).astype(dtype)
+
+    if np.dtype(dtype).char == 'F':
+        scale = np.finfo(dtype).eps * 1e2
+        atol = np.float32(1e-2)
+    else:
+        scale = np.finfo(dtype).eps * 1e3
+        atol = 1e-4
+
+    y0 = f(x0)
+    yp = f(x0 + dx * scale * np.absolute(x0) / np.absolute(dx))
+    ym = f(x0 - dx * scale * np.absolute(x0) / np.absolute(dx))
+
+    assert_(np.all(np.absolute(y0.real - yp.real) < atol), (y0, yp))
+    assert_(np.all(np.absolute(y0.imag - yp.imag) < atol), (y0, yp))
+    assert_(np.all(np.absolute(y0.real - ym.real * re_sign) < atol), (y0, ym))
+    assert_(np.all(np.absolute(y0.imag - ym.imag * im_sign) < atol), (y0, ym))
+
+    if sig_zero_ok:
+        # check that signed zeros also work as a displacement
+        jr = (x0.real == 0) & (dx.real != 0)
+        ji = (x0.imag == 0) & (dx.imag != 0)
+        if np.any(jr):
+            x = x0[jr]
+            x.real = ncu.NZERO
+            ym = f(x)
+            assert_(np.all(np.absolute(y0[jr].real - ym.real * re_sign) < atol), (y0[jr], ym))
+            assert_(np.all(np.absolute(y0[jr].imag - ym.imag * im_sign) < atol), (y0[jr], ym))
+
+        if np.any(ji):
+            x = x0[ji]
+            x.imag = ncu.NZERO
+            ym = f(x)
+            assert_(np.all(np.absolute(y0[ji].real - ym.real * re_sign) < atol), (y0[ji], ym))
+            assert_(np.all(np.absolute(y0[ji].imag - ym.imag * im_sign) < atol), (y0[ji], ym))
+
+def test_copysign():
+    assert_(np.copysign(1, -1) == -1)
+    with np.errstate(divide="ignore"):
+        assert_(1 / np.copysign(0, -1) < 0)
+        assert_(1 / np.copysign(0, 1) > 0)
+    assert_(np.signbit(np.copysign(np.nan, -1)))
+    assert_(not np.signbit(np.copysign(np.nan, 1)))
+
+def _test_nextafter(t):
+    one = t(1)
+    two = t(2)
+    zero = t(0)
+    eps = np.finfo(t).eps
+    assert_(np.nextafter(one, two) - one == eps)
+    assert_(np.nextafter(one, zero) - one < 0)
+    assert_(np.isnan(np.nextafter(np.nan, one)))
+    assert_(np.isnan(np.nextafter(one, np.nan)))
+    assert_(np.nextafter(one, one) == one)
+
+def test_nextafter():
+    return _test_nextafter(np.float64)
+
+
+def test_nextafterf():
+    return _test_nextafter(np.float32)
+
+
+@pytest.mark.skipif(np.finfo(np.double) == np.finfo(np.longdouble),
+                    reason="long double is same as double")
+@pytest.mark.xfail(condition=platform.machine().startswith("ppc64"),
+                    reason="IBM double double")
+def test_nextafterl():
+    return _test_nextafter(np.longdouble)
+
+
+def test_nextafter_0():
+    for t, direction in itertools.product(np._core.sctypes['float'], (1, -1)):
+        # The value of tiny for double double is NaN, so we need to pass the
+        # assert
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', UserWarning)
+            if not np.isnan(np.finfo(t).tiny):
+                tiny = np.finfo(t).tiny
+                assert_(
+                    0. < direction * np.nextafter(t(0), t(direction)) < tiny)
+        assert_equal(np.nextafter(t(0), t(direction)) / t(2.1), direction * 0.0)
+
+def _test_spacing(t):
+    one = t(1)
+    eps = np.finfo(t).eps
+    nan = t(np.nan)
+    inf = t(np.inf)
+    with np.errstate(invalid='ignore'):
+        assert_equal(np.spacing(one), eps)
+        assert_(np.isnan(np.spacing(nan)))
+        assert_(np.isnan(np.spacing(inf)))
+        assert_(np.isnan(np.spacing(-inf)))
+        assert_(np.spacing(t(1e30)) != 0)
+
+def test_spacing():
+    return _test_spacing(np.float64)
+
+def test_spacingf():
+    return _test_spacing(np.float32)
+
+
+@pytest.mark.skipif(np.finfo(np.double) == np.finfo(np.longdouble),
+                    reason="long double is same as double")
+@pytest.mark.xfail(condition=platform.machine().startswith("ppc64"),
+                    reason="IBM double double")
+def test_spacingl():
+    return _test_spacing(np.longdouble)
+
+def test_spacing_gfortran():
+    # Reference from this fortran file, built with gfortran 4.3.3 on linux
+    # 32bits:
+    #       PROGRAM test_spacing
+    #        INTEGER, PARAMETER :: SGL = SELECTED_REAL_KIND(p=6, r=37)
+    #        INTEGER, PARAMETER :: DBL = SELECTED_REAL_KIND(p=13, r=200)
+    #
+    #        WRITE(*,*) spacing(0.00001_DBL)
+    #        WRITE(*,*) spacing(1.0_DBL)
+    #        WRITE(*,*) spacing(1000._DBL)
+    #        WRITE(*,*) spacing(10500._DBL)
+    #
+    #        WRITE(*,*) spacing(0.00001_SGL)
+    #        WRITE(*,*) spacing(1.0_SGL)
+    #        WRITE(*,*) spacing(1000._SGL)
+    #        WRITE(*,*) spacing(10500._SGL)
+    #       END PROGRAM
+    ref = {np.float64: [1.69406589450860068E-021,
+                        2.22044604925031308E-016,
+                        1.13686837721616030E-013,
+                        1.81898940354585648E-012],
+           np.float32: [9.09494702E-13,
+                        1.19209290E-07,
+                        6.10351563E-05,
+                        9.76562500E-04]}
+
+    for dt, dec_ in zip([np.float32, np.float64], (10, 20)):
+        x = np.array([1e-5, 1, 1000, 10500], dtype=dt)
+        assert_array_almost_equal(np.spacing(x), ref[dt], decimal=dec_)
+
+def test_nextafter_vs_spacing():
+    # XXX: spacing does not handle long double yet
+    for t in [np.float32, np.float64]:
+        for _f in [1, 1e-5, 1000]:
+            f = t(_f)
+            f1 = t(_f + 1)
+            assert_(np.nextafter(f, f1) - f == np.spacing(f))
+
+def test_pos_nan():
+    """Check np.nan is a positive nan."""
+    assert_(np.signbit(np.nan) == 0)
+
+def test_reduceat():
+    """Test bug in reduceat when structured arrays are not copied."""
+    db = np.dtype([('name', 'S11'), ('time', np.int64), ('value', np.float32)])
+    a = np.empty([100], dtype=db)
+    a['name'] = 'Simple'
+    a['time'] = 10
+    a['value'] = 100
+    indx = [0, 7, 15, 25]
+
+    h2 = []
+    val1 = indx[0]
+    for val2 in indx[1:]:
+        h2.append(np.add.reduce(a['value'][val1:val2]))
+        val1 = val2
+    h2.append(np.add.reduce(a['value'][val1:]))
+    h2 = np.array(h2)
+
+    # test buffered -- this should work
+    h1 = np.add.reduceat(a['value'], indx)
+    assert_array_almost_equal(h1, h2)
+
+    # This is when the error occurs.
+    # test no buffer
+    np.setbufsize(32)
+    h1 = np.add.reduceat(a['value'], indx)
+    np.setbufsize(ncu.UFUNC_BUFSIZE_DEFAULT)
+    assert_array_almost_equal(h1, h2)
+
+def test_negative_value_raises():
+    with pytest.raises(ValueError, match="buffer size must be non-negative"):
+        np.setbufsize(-5)
+
+    old = np.getbufsize()
+    try:
+        prev = np.setbufsize(4096)
+        assert prev == old
+        assert np.getbufsize() == 4096
+    finally:
+        np.setbufsize(old)
+
+def test_reduceat_empty():
+    """Reduceat should work with empty arrays"""
+    indices = np.array([], 'i4')
+    x = np.array([], 'f8')
+    result = np.add.reduceat(x, indices)
+    assert_equal(result.dtype, x.dtype)
+    assert_equal(result.shape, (0,))
+    # Another case with a slightly different zero-sized shape
+    x = np.ones((5, 2))
+    result = np.add.reduceat(x, [], axis=0)
+    assert_equal(result.dtype, x.dtype)
+    assert_equal(result.shape, (0, 2))
+    result = np.add.reduceat(x, [], axis=1)
+    assert_equal(result.dtype, x.dtype)
+    assert_equal(result.shape, (5, 0))
+
+def test_complex_nan_comparisons():
+    nans = [complex(np.nan, 0), complex(0, np.nan), complex(np.nan, np.nan)]
+    fins = [complex(1, 0), complex(-1, 0), complex(0, 1), complex(0, -1),
+            complex(1, 1), complex(-1, -1), complex(0, 0)]
+
+    with np.errstate(invalid='ignore'):
+        for x in nans + fins:
+            x = np.array([x])
+            for y in nans + fins:
+                y = np.array([y])
+
+                if np.isfinite(x) and np.isfinite(y):
+                    continue
+
+                assert_equal(x < y, False, err_msg=f"{x!r} < {y!r}")
+                assert_equal(x > y, False, err_msg=f"{x!r} > {y!r}")
+                assert_equal(x <= y, False, err_msg=f"{x!r} <= {y!r}")
+                assert_equal(x >= y, False, err_msg=f"{x!r} >= {y!r}")
+                assert_equal(x == y, False, err_msg=f"{x!r} == {y!r}")
+
+
+def test_rint_big_int():
+    # np.rint bug for large integer values on Windows 32-bit and MKL
+    # https://github.com/numpy/numpy/issues/6685
+    val = 4607998452777363968
+    # This is exactly representable in floating point
+    assert_equal(val, int(float(val)))
+    # Rint should not change the value
+    assert_equal(val, np.rint(val))
+
+
+@pytest.mark.parametrize('ftype', [np.float32, np.float64])
+def test_memoverlap_accumulate(ftype):
+    # Reproduces bug https://github.com/numpy/numpy/issues/15597
+    arr = np.array([0.61, 0.60, 0.77, 0.41, 0.19], dtype=ftype)
+    out_max = np.array([0.61, 0.61, 0.77, 0.77, 0.77], dtype=ftype)
+    out_min = np.array([0.61, 0.60, 0.60, 0.41, 0.19], dtype=ftype)
+    assert_equal(np.maximum.accumulate(arr), out_max)
+    assert_equal(np.minimum.accumulate(arr), out_min)
+
+@pytest.mark.parametrize("ufunc, dtype", [
+    (ufunc, t[0])
+    for ufunc in UFUNCS_BINARY_ACC
+    for t in ufunc.types
+    if t[-1] == '?' and t[0] not in 'DFGMmO'
+])
+def test_memoverlap_accumulate_cmp(ufunc, dtype):
+    if ufunc.signature:
+        pytest.skip('For generic signatures only')
+    for size in (2, 8, 32, 64, 128, 256):
+        arr = np.array([0, 1, 1] * size, dtype=dtype)
+        acc = ufunc.accumulate(arr, dtype='?')
+        acc_u8 = acc.view(np.uint8)
+        exp = np.array(list(itertools.accumulate(arr, ufunc)), dtype=np.uint8)
+        assert_equal(exp, acc_u8)
+
+@pytest.mark.parametrize("ufunc, dtype", [
+    (ufunc, t[0])
+    for ufunc in UFUNCS_BINARY_ACC
+    for t in ufunc.types
+    if t[0] == t[1] and t[0] == t[-1] and t[0] not in 'DFGMmO?'
+])
+def test_memoverlap_accumulate_symmetric(ufunc, dtype):
+    if ufunc.signature:
+        pytest.skip('For generic signatures only')
+    with np.errstate(all='ignore'):
+        for size in (2, 8, 32, 64, 128, 256):
+            arr = np.array([0, 1, 2] * size).astype(dtype)
+            acc = ufunc.accumulate(arr, dtype=dtype)
+            exp = np.array(list(itertools.accumulate(arr, ufunc)), dtype=dtype)
+            assert_equal(exp, acc)
+
+def test_signaling_nan_exceptions():
+    with assert_no_warnings():
+        a = np.ndarray(shape=(), dtype='float32', buffer=b'\x00\xe0\xbf\xff')
+        np.isnan(a)
+
+@pytest.mark.parametrize("arr", [
+    np.arange(2),
+    np.matrix([0, 1]),
+    np.matrix([[0, 1], [2, 5]]),
+    ])
+def test_outer_subclass_preserve(arr):
+    # for gh-8661
+    class foo(np.ndarray):
+        pass
+    actual = np.multiply.outer(arr.view(foo), arr.view(foo))
+    assert actual.__class__.__name__ == 'foo'
+
+def test_outer_bad_subclass():
+    class BadArr1(np.ndarray):
+        def __array_finalize__(self, obj):
+            # The outer call reshapes to 3 dims, try to do a bad reshape.
+            if self.ndim == 3:
+                self.shape = self.shape + (1,)
+
+    class BadArr2(np.ndarray):
+        def __array_finalize__(self, obj):
+            if isinstance(obj, BadArr2):
+                # outer inserts 1-sized dims. In that case disturb them.
+                if self.shape[-1] == 1:
+                    self.shape = self.shape[::-1]
+
+    for cls in [BadArr1, BadArr2]:
+        arr = np.ones((2, 3)).view(cls)
+        with assert_raises(TypeError) as a:
+            # The first array gets reshaped (not the second one)
+            np.add.outer(arr, [1, 2])
+
+        # This actually works, since we only see the reshaping error:
+        arr = np.ones((2, 3)).view(cls)
+        assert type(np.add.outer([1, 2], arr)) is cls
+
+def test_outer_exceeds_maxdims():
+    deep = np.ones((1,) * 33)
+    with assert_raises(ValueError):
+        np.add.outer(deep, deep)
+
+def test_bad_legacy_ufunc_silent_errors():
+    # legacy ufuncs can't report errors and NumPy can't check if the GIL
+    # is released.  So NumPy has to check after the GIL is released just to
+    # cover all bases.  `np.power` uses/used to use this.
+    arr = np.arange(3).astype(np.float64)
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error(arr, arr)
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        # not contiguous means the fast-path cannot be taken
+        non_contig = arr.repeat(20).reshape(-1, 6)[:, ::2]
+        ncu_tests.always_error(non_contig, arr)
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error.outer(arr, arr)
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error.reduce(arr)
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error.reduceat(arr, [0, 1])
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error.accumulate(arr)
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error.at(arr, [0, 1, 2], arr)
+
+
+def test_bad_legacy_unary_ufunc_silent_errors():
+    # Unary has a special scalar path right now, so test it explicitly.
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error_unary(np.arange(3).astype(np.float64))
+
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error_unary(1.5)
+
+
+@pytest.mark.parametrize('x1', [np.arange(3.0), [0.0, 1.0, 2.0]])
+def test_bad_legacy_gufunc_silent_errors(x1):
+    # Verify that an exception raised in a gufunc loop propagates correctly.
+    # The signature of always_error_gufunc is '(i),()->()'.
+    with pytest.raises(RuntimeError, match=r"How unexpected :\)!"):
+        ncu_tests.always_error_gufunc(x1, 0.0)
+
+
+class TestAddDocstring:
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    @pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc")
+    def test_add_same_docstring(self):
+        # test for attributes (which are C-level defined)
+        ncu.add_docstring(np.ndarray.flat, np.ndarray.flat.__doc__)
+
+        # And typical functions:
+        def func():
+            """docstring"""
+            return
+
+        ncu.add_docstring(func, func.__doc__)
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    def test_different_docstring_fails(self):
+        # test for attributes (which are C-level defined)
+        with assert_raises(RuntimeError):
+            ncu.add_docstring(np.ndarray.flat, "different docstring")
+
+        # And typical functions:
+        def func():
+            """docstring"""
+            return
+
+        with assert_raises(RuntimeError):
+            ncu.add_docstring(func, "different docstring")
+
+
+class TestAdd_newdoc_ufunc:
+    @pytest.mark.filterwarnings("ignore:_add_newdoc_ufunc:DeprecationWarning")
+    def test_ufunc_arg(self):
+        assert_raises(TypeError, ncu._add_newdoc_ufunc, 2, "blah")
+        assert_raises(ValueError, ncu._add_newdoc_ufunc, np.add, "blah")
+
+    @pytest.mark.filterwarnings("ignore:_add_newdoc_ufunc:DeprecationWarning")
+    def test_string_arg(self):
+        assert_raises(TypeError, ncu._add_newdoc_ufunc, np.add, 3)
+
+class TestHypotErrorMessages:
+    def test_hypot_error_message_single_arg(self):
+        with pytest.raises(TypeError, match="hypot\\(\\) takes .* but 1 was given"):
+            np.hypot(5)
+
+    def test_hypot_error_message_multiple_args(self):
+        with pytest.raises(TypeError, match="hypot\\(\\) takes .* but 4 were given"):
+            np.hypot(1, 2, 3, 4)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath_accuracy.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath_accuracy.py
new file mode 100644
index 0000000000000000000000000000000000000000..7145fa8d7c3b253d071d5d35b21c33ab7f634914
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath_accuracy.py
@@ -0,0 +1,132 @@
+import os
+import sys
+from ctypes import POINTER, c_double, c_float, c_int, c_longlong, cast, pointer
+from os import path
+
+import pytest
+
+import numpy as np
+from numpy._core._multiarray_umath import __cpu_features__
+from numpy.testing import assert_array_max_ulp
+from numpy.testing._private.utils import _glibc_older_than
+
+UNARY_UFUNCS = [obj for obj in np._core.umath.__dict__.values() if
+        isinstance(obj, np.ufunc)]
+UNARY_OBJECT_UFUNCS = [uf for uf in UNARY_UFUNCS if "O->O" in uf.types]
+
+# Remove functions that do not support `floats`
+UNARY_OBJECT_UFUNCS.remove(np.invert)
+UNARY_OBJECT_UFUNCS.remove(np.bitwise_count)
+
+IS_AVX = __cpu_features__.get('AVX512F', False) or \
+        (__cpu_features__.get('FMA3', False) and __cpu_features__.get('AVX2', False))
+
+IS_AVX512FP16 = __cpu_features__.get('AVX512FP16', False)
+
+# only run on linux with AVX, also avoid old glibc (numpy/numpy#20448).
+runtest = (sys.platform.startswith('linux')
+           and IS_AVX and not _glibc_older_than("2.17"))
+platform_skip = pytest.mark.skipif(not runtest,
+                                   reason="avoid testing inconsistent platform "
+                                   "library implementations")
+
+# convert string to hex function taken from:
+# https://stackoverflow.com/questions/1592158/convert-hex-to-float #
+def convert(s, datatype="np.float32"):
+    i = int(s, 16)                   # convert from hex to a Python int
+    if (datatype == "np.float64"):
+        cp = pointer(c_longlong(i))           # make this into a c long long integer
+        fp = cast(cp, POINTER(c_double))  # cast the int pointer to a double pointer
+    else:
+        cp = pointer(c_int(i))           # make this into a c integer
+        fp = cast(cp, POINTER(c_float))  # cast the int pointer to a float pointer
+
+    return fp.contents.value         # dereference the pointer, get the float
+
+
+str_to_float = np.vectorize(convert)
+
+class TestAccuracy:
+    @platform_skip
+    def test_validate_transcendentals(self):
+        with np.errstate(all='ignore'):
+            data_dir = path.join(path.dirname(__file__), 'data')
+            files = os.listdir(data_dir)
+            files = list(filter(lambda f: f.endswith('.csv'), files))
+            for filename in files:
+                filepath = path.join(data_dir, filename)
+                with open(filepath) as fid:
+                    file_without_comments = (
+                        r for r in fid if r[0] not in ('$', '#')
+                    )
+                    data = np.genfromtxt(file_without_comments,
+                                         dtype=('|S39', '|S39', '|S39', int),
+                                         names=('type', 'input', 'output', 'ulperr'),
+                                         delimiter=',',
+                                         skip_header=1)
+                    npname = path.splitext(filename)[0].split('-')[3]
+                    npfunc = getattr(np, npname)
+                    for datatype in np.unique(data['type']):
+                        data_subset = data[data['type'] == datatype]
+                        data_input_str = data_subset['input'].astype(str)
+                        data_output_str = data_subset['output'].astype(str)
+                        data_type_str = data_subset['type'].astype(str)
+
+                        inval = np.array(str_to_float(data_input_str,
+                                                      data_type_str),
+                                         dtype=eval(datatype))
+                        outval = np.array(str_to_float(data_output_str,
+                                                       data_type_str),
+                                          dtype=eval(datatype))
+                        perm = np.random.permutation(len(inval))
+                        inval = inval[perm]
+                        outval = outval[perm]
+                        maxulperr = data_subset['ulperr'].max()
+                        assert_array_max_ulp(npfunc(inval), outval, maxulperr)
+
+    @pytest.mark.skipif(IS_AVX512FP16,
+            reason="SVML FP16 have slightly higher ULP errors")
+    @pytest.mark.parametrize("ufunc", UNARY_OBJECT_UFUNCS)
+    def test_validate_fp16_transcendentals(self, ufunc):
+        with np.errstate(all='ignore'):
+            arr = np.arange(65536, dtype=np.int16)
+            datafp16 = np.frombuffer(arr.tobytes(), dtype=np.float16)
+            datafp32 = datafp16.astype(np.float32)
+            assert_array_max_ulp(ufunc(datafp16), ufunc(datafp32),
+                    maxulp=1, dtype=np.float16)
+
+    @pytest.mark.skipif(not IS_AVX512FP16,
+                               reason="lower ULP only apply for SVML FP16")
+    def test_validate_svml_fp16(self):
+        max_ulp_err = {
+                "arccos": 2.54,
+                "arccosh": 2.09,
+                "arcsin": 3.06,
+                "arcsinh": 1.51,
+                "arctan": 2.61,
+                "arctanh": 1.88,
+                "cbrt": 1.57,
+                "cos": 1.43,
+                "cosh": 1.33,
+                "exp2": 1.33,
+                "exp": 1.27,
+                "expm1": 0.53,
+                "log": 1.80,
+                "log10": 1.27,
+                "log1p": 1.88,
+                "log2": 1.80,
+                "sin": 1.88,
+                "sinh": 2.05,
+                "tan": 2.26,
+                "tanh": 3.00,
+                }
+
+        with np.errstate(all='ignore'):
+            arr = np.arange(65536, dtype=np.int16)
+            datafp16 = np.frombuffer(arr.tobytes(), dtype=np.float16)
+            datafp32 = datafp16.astype(np.float32)
+            for func in max_ulp_err:
+                ufunc = getattr(np, func)
+                ulp = np.ceil(max_ulp_err[func])
+                assert_array_max_ulp(ufunc(datafp16), ufunc(datafp32),
+                        maxulp=ulp, dtype=np.float16)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath_complex.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath_complex.py
new file mode 100644
index 0000000000000000000000000000000000000000..a89eb459004d64a1cf641dac276881ee52ddcae0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_umath_complex.py
@@ -0,0 +1,631 @@
+import platform
+import sys
+
+import pytest
+
+import numpy as np
+
+# import the c-extension module directly since _arg is not exported via umath
+import numpy._core._multiarray_umath as ncu
+from numpy.testing import (
+    assert_almost_equal,
+    assert_array_equal,
+    assert_array_max_ulp,
+    assert_equal,
+    assert_raises,
+)
+
+# TODO: branch cuts (use Pauli code)
+# TODO: conj 'symmetry'
+# TODO: FPU exceptions
+
+# At least on Windows the results of many complex functions are not conforming
+# to the C99 standard. See ticket 1574.
+# Ditto for Solaris (ticket 1642) and OS X on PowerPC.
+# FIXME: this will probably change when we require full C99 compatibility
+with np.errstate(all='ignore'):
+    functions_seem_flaky = ((np.exp(complex(np.inf, 0)).imag != 0)
+                            or (np.log(complex(ncu.NZERO, 0)).imag != np.pi))
+# TODO: replace with a check on whether platform-provided C99 funcs are used
+xfail_complex_tests = (not sys.platform.startswith('linux') or functions_seem_flaky)
+
+# TODO This can be xfail when the generator functions are got rid of.
+platform_skip = pytest.mark.skipif(xfail_complex_tests,
+                                   reason="Inadequate C99 complex support")
+
+
+class TestCexp:
+    def test_simple(self):
+        check = check_complex_value
+        f = np.exp
+
+        check(f, 1, 0, np.exp(1), 0, False)
+        check(f, 0, 1, np.cos(1), np.sin(1), False)
+
+        ref = np.exp(1) * complex(np.cos(1), np.sin(1))
+        check(f, 1, 1, ref.real, ref.imag, False)
+
+    @platform_skip
+    def test_special_values(self):
+        # C99: Section G 6.3.1
+
+        check = check_complex_value
+        f = np.exp
+
+        # cexp(+-0 + 0i) is 1 + 0i
+        check(f, ncu.PZERO, 0, 1, 0, False)
+        check(f, ncu.NZERO, 0, 1, 0, False)
+
+        # cexp(x + infi) is nan + nani for finite x and raises 'invalid' FPU
+        # exception
+        check(f,  1, np.inf, np.nan, np.nan)
+        check(f, -1, np.inf, np.nan, np.nan)
+        check(f,  0, np.inf, np.nan, np.nan)
+
+        # cexp(inf + 0i) is inf + 0i
+        check(f,  np.inf, 0, np.inf, 0)
+
+        # cexp(-inf + yi) is +0 * (cos(y) + i sin(y)) for finite y
+        check(f, -np.inf, 1, ncu.PZERO, ncu.PZERO)
+        check(f, -np.inf, 0.75 * np.pi, ncu.NZERO, ncu.PZERO)
+
+        # cexp(inf + yi) is +inf * (cos(y) + i sin(y)) for finite y
+        check(f,  np.inf, 1, np.inf, np.inf)
+        check(f,  np.inf, 0.75 * np.pi, -np.inf, np.inf)
+
+        # cexp(-inf + inf i) is +-0 +- 0i (signs unspecified)
+        def _check_ninf_inf(dummy):
+            msgform = "cexp(-inf, inf) is (%f, %f), expected (+-0, +-0)"
+            with np.errstate(invalid='ignore'):
+                z = f(np.array(complex(-np.inf, np.inf)))
+                if z.real != 0 or z.imag != 0:
+                    raise AssertionError(msgform % (z.real, z.imag))
+
+        _check_ninf_inf(None)
+
+        # cexp(inf + inf i) is +-inf + NaNi and raised invalid FPU ex.
+        def _check_inf_inf(dummy):
+            msgform = "cexp(inf, inf) is (%f, %f), expected (+-inf, nan)"
+            with np.errstate(invalid='ignore'):
+                z = f(np.array(complex(np.inf, np.inf)))
+                if not np.isinf(z.real) or not np.isnan(z.imag):
+                    raise AssertionError(msgform % (z.real, z.imag))
+
+        _check_inf_inf(None)
+
+        # cexp(-inf + nan i) is +-0 +- 0i
+        def _check_ninf_nan(dummy):
+            msgform = "cexp(-inf, nan) is (%f, %f), expected (+-0, +-0)"
+            with np.errstate(invalid='ignore'):
+                z = f(np.array(complex(-np.inf, np.nan)))
+                if z.real != 0 or z.imag != 0:
+                    raise AssertionError(msgform % (z.real, z.imag))
+
+        _check_ninf_nan(None)
+
+        # cexp(inf + nan i) is +-inf + nan
+        def _check_inf_nan(dummy):
+            msgform = "cexp(-inf, nan) is (%f, %f), expected (+-inf, nan)"
+            with np.errstate(invalid='ignore'):
+                z = f(np.array(complex(np.inf, np.nan)))
+                if not np.isinf(z.real) or not np.isnan(z.imag):
+                    raise AssertionError(msgform % (z.real, z.imag))
+
+        _check_inf_nan(None)
+
+        # cexp(nan + yi) is nan + nani for y != 0 (optional: raises invalid FPU
+        # ex)
+        check(f, np.nan, 1, np.nan, np.nan)
+        check(f, np.nan, -1, np.nan, np.nan)
+
+        check(f, np.nan,  np.inf, np.nan, np.nan)
+        check(f, np.nan, -np.inf, np.nan, np.nan)
+
+        # cexp(nan + nani) is nan + nani
+        check(f, np.nan, np.nan, np.nan, np.nan)
+
+    # TODO This can be xfail when the generator functions are got rid of.
+    @pytest.mark.skip(reason="cexp(nan + 0I) is wrong on most platforms")
+    def test_special_values2(self):
+        # XXX: most implementations get it wrong here (including glibc <= 2.10)
+        # cexp(nan + 0i) is nan + 0i
+        check = check_complex_value
+        f = np.exp
+
+        check(f, np.nan, 0, np.nan, 0)
+
+class TestClog:
+    def test_simple(self):
+        x = np.array([1 + 0j, 1 + 2j])
+        y_r = np.log(np.abs(x)) + 1j * np.angle(x)
+        y = np.log(x)
+        assert_almost_equal(y, y_r)
+
+    @platform_skip
+    @pytest.mark.skipif(platform.machine() == "armv5tel", reason="See gh-413.")
+    def test_special_values(self):
+        xl = []
+        yl = []
+
+        # From C99 std (Sec 6.3.2)
+        # XXX: check exceptions raised
+        # --- raise for invalid fails.
+
+        # clog(-0 + i0) returns -inf + i pi and raises the 'divide-by-zero'
+        # floating-point exception.
+        with np.errstate(divide='raise'):
+            x = np.array([ncu.NZERO], dtype=complex)
+            y = complex(-np.inf, np.pi)
+            assert_raises(FloatingPointError, np.log, x)
+        with np.errstate(divide='ignore'):
+            assert_almost_equal(np.log(x), y)
+
+        xl.append(x)
+        yl.append(y)
+
+        # clog(+0 + i0) returns -inf + i0 and raises the 'divide-by-zero'
+        # floating-point exception.
+        with np.errstate(divide='raise'):
+            x = np.array([0], dtype=complex)
+            y = complex(-np.inf, 0)
+            assert_raises(FloatingPointError, np.log, x)
+        with np.errstate(divide='ignore'):
+            assert_almost_equal(np.log(x), y)
+
+        xl.append(x)
+        yl.append(y)
+
+        # clog(x + i inf returns +inf + i pi /2, for finite x.
+        x = np.array([complex(1, np.inf)], dtype=complex)
+        y = complex(np.inf, 0.5 * np.pi)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        x = np.array([complex(-1, np.inf)], dtype=complex)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(x + iNaN) returns NaN + iNaN and optionally raises the
+        # 'invalid' floating- point exception, for finite x.
+        with np.errstate(invalid='raise'):
+            x = np.array([complex(1., np.nan)], dtype=complex)
+            y = complex(np.nan, np.nan)
+            #assert_raises(FloatingPointError, np.log, x)
+        with np.errstate(invalid='ignore'):
+            assert_almost_equal(np.log(x), y)
+
+        xl.append(x)
+        yl.append(y)
+
+        with np.errstate(invalid='raise'):
+            x = np.array([np.inf + 1j * np.nan], dtype=complex)
+            #assert_raises(FloatingPointError, np.log, x)
+        with np.errstate(invalid='ignore'):
+            assert_almost_equal(np.log(x), y)
+
+        xl.append(x)
+        yl.append(y)
+
+        # clog(- inf + iy) returns +inf + ipi , for finite positive-signed y.
+        x = np.array([-np.inf + 1j], dtype=complex)
+        y = complex(np.inf, np.pi)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(+ inf + iy) returns +inf + i0, for finite positive-signed y.
+        x = np.array([np.inf + 1j], dtype=complex)
+        y = complex(np.inf, 0)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(- inf + i inf) returns +inf + i3pi /4.
+        x = np.array([complex(-np.inf, np.inf)], dtype=complex)
+        y = complex(np.inf, 0.75 * np.pi)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(+ inf + i inf) returns +inf + ipi /4.
+        x = np.array([complex(np.inf, np.inf)], dtype=complex)
+        y = complex(np.inf, 0.25 * np.pi)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(+/- inf + iNaN) returns +inf + iNaN.
+        x = np.array([complex(np.inf, np.nan)], dtype=complex)
+        y = complex(np.inf, np.nan)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        x = np.array([complex(-np.inf, np.nan)], dtype=complex)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(NaN + iy) returns NaN + iNaN and optionally raises the
+        # 'invalid' floating-point exception, for finite y.
+        x = np.array([complex(np.nan, 1)], dtype=complex)
+        y = complex(np.nan, np.nan)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(NaN + i inf) returns +inf + iNaN.
+        x = np.array([complex(np.nan, np.inf)], dtype=complex)
+        y = complex(np.inf, np.nan)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(NaN + iNaN) returns NaN + iNaN.
+        x = np.array([complex(np.nan, np.nan)], dtype=complex)
+        y = complex(np.nan, np.nan)
+        assert_almost_equal(np.log(x), y)
+        xl.append(x)
+        yl.append(y)
+
+        # clog(conj(z)) = conj(clog(z)).
+        xa = np.array(xl, dtype=complex)
+        ya = np.array(yl, dtype=complex)
+        with np.errstate(divide='ignore'):
+            for i in range(len(xa)):
+                assert_almost_equal(np.log(xa[i].conj()), ya[i].conj())
+
+
+class TestCsqrt:
+
+    def test_simple(self):
+        # sqrt(1)
+        check_complex_value(np.sqrt, 1, 0, 1, 0)
+
+        # sqrt(1i)
+        rres = 0.5 * np.sqrt(2)
+        ires = rres
+        check_complex_value(np.sqrt, 0, 1, rres, ires, False)
+
+        # sqrt(-1)
+        check_complex_value(np.sqrt, -1, 0, 0, 1)
+
+    def test_simple_conjugate(self):
+        ref = np.conj(np.sqrt(complex(1, 1)))
+
+        def f(z):
+            return np.sqrt(np.conj(z))
+
+        check_complex_value(f, 1, 1, ref.real, ref.imag, False)
+
+    #def test_branch_cut(self):
+    #    _check_branch_cut(f, -1, 0, 1, -1)
+
+    @platform_skip
+    def test_special_values(self):
+        # C99: Sec G 6.4.2
+
+        check = check_complex_value
+        f = np.sqrt
+
+        # csqrt(+-0 + 0i) is 0 + 0i
+        check(f, ncu.PZERO, 0, 0, 0)
+        check(f, ncu.NZERO, 0, 0, 0)
+
+        # csqrt(x + infi) is inf + infi for any x (including NaN)
+        check(f,  1, np.inf, np.inf, np.inf)
+        check(f, -1, np.inf, np.inf, np.inf)
+
+        check(f, ncu.PZERO, np.inf, np.inf, np.inf)
+        check(f, ncu.NZERO, np.inf, np.inf, np.inf)
+        check(f,    np.inf, np.inf, np.inf, np.inf)
+        check(f,   -np.inf, np.inf, np.inf, np.inf)  # noqa: E221
+        check(f,   -np.nan, np.inf, np.inf, np.inf)  # noqa: E221
+
+        # csqrt(x + nani) is nan + nani for any finite x
+        check(f,  1, np.nan, np.nan, np.nan)
+        check(f, -1, np.nan, np.nan, np.nan)
+        check(f,  0, np.nan, np.nan, np.nan)
+
+        # csqrt(-inf + yi) is +0 + infi for any finite y > 0
+        check(f, -np.inf, 1, ncu.PZERO, np.inf)
+
+        # csqrt(inf + yi) is +inf + 0i for any finite y > 0
+        check(f, np.inf, 1, np.inf, ncu.PZERO)
+
+        # csqrt(-inf + nani) is nan +- infi (both +i infi are valid)
+        def _check_ninf_nan(dummy):
+            msgform = "csqrt(-inf, nan) is (%f, %f), expected (nan, +-inf)"
+            z = np.sqrt(np.array(complex(-np.inf, np.nan)))
+            # FIXME: ugly workaround for isinf bug.
+            with np.errstate(invalid='ignore'):
+                if not (np.isnan(z.real) and np.isinf(z.imag)):
+                    raise AssertionError(msgform % (z.real, z.imag))
+
+        _check_ninf_nan(None)
+
+        # csqrt(+inf + nani) is inf + nani
+        check(f, np.inf, np.nan, np.inf, np.nan)
+
+        # csqrt(nan + yi) is nan + nani for any finite y (infinite handled in x
+        # + nani)
+        check(f, np.nan,       0, np.nan, np.nan)
+        check(f, np.nan,       1, np.nan, np.nan)
+        check(f, np.nan,  np.nan, np.nan, np.nan)
+
+        # XXX: check for conj(csqrt(z)) == csqrt(conj(z)) (need to fix branch
+        # cuts first)
+
+class TestCpow:
+    def setup_method(self):
+        self.olderr = np.seterr(invalid='ignore')
+
+    def teardown_method(self):
+        np.seterr(**self.olderr)
+
+    def test_simple(self):
+        x = np.array([1 + 1j, 0 + 2j, 1 + 2j, np.inf, np.nan])
+        y_r = x ** 2
+        y = np.power(x, 2)
+        assert_almost_equal(y, y_r)
+
+    def test_scalar(self):
+        x = np.array([1, 1j,         2,  2.5 + .37j, np.inf, np.nan])
+        y = np.array([1, 1j, -0.5 + 1.5j, -0.5 + 1.5j,      2,      3])
+        lx = list(range(len(x)))
+
+        # Hardcode the expected `builtins.complex` values,
+        # as complex exponentiation is broken as of bpo-44698
+        p_r = [
+            1 + 0j,
+            0.20787957635076193 + 0j,
+            0.35812203996480685 + 0.6097119028618724j,
+            0.12659112128185032 + 0.48847676699581527j,
+            complex(np.inf, np.nan),
+            complex(np.nan, np.nan),
+        ]
+
+        n_r = [x[i] ** y[i] for i in lx]
+        for i in lx:
+            assert_almost_equal(n_r[i], p_r[i], err_msg='Loop %d\n' % i)
+
+    def test_array(self):
+        x = np.array([1, 1j,         2,  2.5 + .37j, np.inf, np.nan])
+        y = np.array([1, 1j, -0.5 + 1.5j, -0.5 + 1.5j,      2,      3])
+        lx = list(range(len(x)))
+
+        # Hardcode the expected `builtins.complex` values,
+        # as complex exponentiation is broken as of bpo-44698
+        p_r = [
+            1 + 0j,
+            0.20787957635076193 + 0j,
+            0.35812203996480685 + 0.6097119028618724j,
+            0.12659112128185032 + 0.48847676699581527j,
+            complex(np.inf, np.nan),
+            complex(np.nan, np.nan),
+        ]
+
+        n_r = x ** y
+        for i in lx:
+            assert_almost_equal(n_r[i], p_r[i], err_msg='Loop %d\n' % i)
+
+class TestCabs:
+    def setup_method(self):
+        self.olderr = np.seterr(invalid='ignore')
+
+    def teardown_method(self):
+        np.seterr(**self.olderr)
+
+    def test_simple(self):
+        x = np.array([1 + 1j, 0 + 2j, 1 + 2j, np.inf, np.nan])
+        y_r = np.array([np.sqrt(2.), 2, np.sqrt(5), np.inf, np.nan])
+        y = np.abs(x)
+        assert_almost_equal(y, y_r)
+
+    def test_fabs(self):
+        # Test that np.abs(x +- 0j) == np.abs(x) (as mandated by C99 for cabs)
+        x = np.array([1 + 0j], dtype=complex)
+        assert_array_equal(np.abs(x), np.real(x))
+
+        x = np.array([complex(1, ncu.NZERO)], dtype=complex)
+        assert_array_equal(np.abs(x), np.real(x))
+
+        x = np.array([complex(np.inf, ncu.NZERO)], dtype=complex)
+        assert_array_equal(np.abs(x), np.real(x))
+
+        x = np.array([complex(np.nan, ncu.NZERO)], dtype=complex)
+        assert_array_equal(np.abs(x), np.real(x))
+
+    def test_cabs_inf_nan(self):
+        x, y = [], []
+
+        # cabs(+-nan + nani) returns nan
+        x.append(np.nan)
+        y.append(np.nan)
+        check_real_value(np.abs,  np.nan, np.nan, np.nan)
+
+        x.append(np.nan)
+        y.append(-np.nan)
+        check_real_value(np.abs, -np.nan, np.nan, np.nan)
+
+        # According to C99 standard, if exactly one of the real/part is inf and
+        # the other nan, then cabs should return inf
+        x.append(np.inf)
+        y.append(np.nan)
+        check_real_value(np.abs,  np.inf, np.nan, np.inf)
+
+        x.append(-np.inf)
+        y.append(np.nan)
+        check_real_value(np.abs, -np.inf, np.nan, np.inf)
+
+        # cabs(conj(z)) == conj(cabs(z)) (= cabs(z))
+        def f(a):
+            return np.abs(np.conj(a))
+
+        def g(a, b):
+            return np.abs(complex(a, b))
+
+        xa = np.array(x, dtype=complex)
+        assert len(xa) == len(x) == len(y)
+        for xi, yi in zip(x, y):
+            ref = g(xi, yi)
+            check_real_value(f, xi, yi, ref)
+
+class TestCarg:
+    def test_simple(self):
+        check_real_value(ncu._arg, 1, 0, 0, False)
+        check_real_value(ncu._arg, 0, 1, 0.5 * np.pi, False)
+
+        check_real_value(ncu._arg, 1, 1, 0.25 * np.pi, False)
+        check_real_value(ncu._arg, ncu.PZERO, ncu.PZERO, ncu.PZERO)
+
+    # TODO This can be xfail when the generator functions are got rid of.
+    @pytest.mark.skip(
+        reason="Complex arithmetic with signed zero fails on most platforms")
+    def test_zero(self):
+        # carg(-0 +- 0i) returns +- pi
+        check_real_value(ncu._arg, ncu.NZERO, ncu.PZERO,  np.pi, False)
+        check_real_value(ncu._arg, ncu.NZERO, ncu.NZERO, -np.pi, False)
+
+        # carg(+0 +- 0i) returns +- 0
+        check_real_value(ncu._arg, ncu.PZERO, ncu.PZERO, ncu.PZERO)
+        check_real_value(ncu._arg, ncu.PZERO, ncu.NZERO, ncu.NZERO)
+
+        # carg(x +- 0i) returns +- 0 for x > 0
+        check_real_value(ncu._arg, 1, ncu.PZERO, ncu.PZERO, False)
+        check_real_value(ncu._arg, 1, ncu.NZERO, ncu.NZERO, False)
+
+        # carg(x +- 0i) returns +- pi for x < 0
+        check_real_value(ncu._arg, -1, ncu.PZERO,  np.pi, False)
+        check_real_value(ncu._arg, -1, ncu.NZERO, -np.pi, False)
+
+        # carg(+- 0 + yi) returns pi/2 for y > 0
+        check_real_value(ncu._arg, ncu.PZERO, 1, 0.5 * np.pi, False)
+        check_real_value(ncu._arg, ncu.NZERO, 1, 0.5 * np.pi, False)
+
+        # carg(+- 0 + yi) returns -pi/2 for y < 0
+        check_real_value(ncu._arg, ncu.PZERO, -1, 0.5 * np.pi, False)
+        check_real_value(ncu._arg, ncu.NZERO, -1, -0.5 * np.pi, False)
+
+    #def test_branch_cuts(self):
+    #    _check_branch_cut(ncu._arg, -1, 1j, -1, 1)
+
+    def test_special_values(self):
+        # carg(-np.inf +- yi) returns +-pi for finite y > 0
+        check_real_value(ncu._arg, -np.inf,  1,  np.pi, False)
+        check_real_value(ncu._arg, -np.inf, -1, -np.pi, False)
+
+        # carg(np.inf +- yi) returns +-0 for finite y > 0
+        check_real_value(ncu._arg, np.inf,  1, ncu.PZERO, False)
+        check_real_value(ncu._arg, np.inf, -1, ncu.NZERO, False)
+
+        # carg(x +- np.infi) returns +-pi/2 for finite x
+        check_real_value(ncu._arg, 1,  np.inf,  0.5 * np.pi, False)
+        check_real_value(ncu._arg, 1, -np.inf, -0.5 * np.pi, False)
+
+        # carg(-np.inf +- np.infi) returns +-3pi/4
+        check_real_value(ncu._arg, -np.inf,  np.inf,  0.75 * np.pi, False)
+        check_real_value(ncu._arg, -np.inf, -np.inf, -0.75 * np.pi, False)
+
+        # carg(np.inf +- np.infi) returns +-pi/4
+        check_real_value(ncu._arg, np.inf,  np.inf,  0.25 * np.pi, False)
+        check_real_value(ncu._arg, np.inf, -np.inf, -0.25 * np.pi, False)
+
+        # carg(x + yi) returns np.nan if x or y is nan
+        check_real_value(ncu._arg, np.nan,      0, np.nan, False)
+        check_real_value(ncu._arg,      0, np.nan, np.nan, False)
+
+        check_real_value(ncu._arg, np.nan, np.inf, np.nan, False)
+        check_real_value(ncu._arg, np.inf, np.nan, np.nan, False)
+
+
+def check_real_value(f, x1, y1, x, exact=True):
+    z1 = np.array([complex(x1, y1)])
+    if exact:
+        assert_equal(f(z1), x)
+    else:
+        assert_almost_equal(f(z1), x)
+
+
+def check_complex_value(f, x1, y1, x2, y2, exact=True):
+    z1 = np.array([complex(x1, y1)])
+    z2 = complex(x2, y2)
+    with np.errstate(invalid='ignore'):
+        if exact:
+            assert_equal(f(z1), z2)
+        else:
+            assert_almost_equal(f(z1), z2)
+
+class TestSpecialComplexAVX:
+    @pytest.mark.parametrize("stride", [-4, -2, -1, 1, 2, 4])
+    @pytest.mark.parametrize("astype", [np.complex64, np.complex128])
+    def test_array(self, stride, astype):
+        nan = np.nan
+        inf = np.inf
+        arr = np.array([complex(nan, nan),
+                        complex(nan, inf),
+                        complex(inf, nan),
+                        complex(inf, inf),
+                        complex(0.,  inf),
+                        complex(inf,  0.),
+                        complex(0.,   0.),
+                        complex(0.,  nan),
+                        complex(nan,  0.)], dtype=astype)
+        abs_true = np.array([nan, inf, inf, inf, inf, inf, 0., nan, nan],
+                            dtype=arr.real.dtype)
+        sq_true = np.array([complex(nan,  nan),
+                            complex(nan,  nan),
+                            complex(nan,  nan),
+                            complex(nan,  inf),
+                            complex(-inf, nan),
+                            complex(inf,  nan),
+                            complex(0.,    0.),
+                            complex(nan,  nan),
+                            complex(nan,  nan)], dtype=astype)
+        with np.errstate(invalid='ignore'):
+            assert_equal(np.abs(arr[::stride]), abs_true[::stride])
+            assert_equal(np.square(arr[::stride]), sq_true[::stride])
+
+class TestComplexAbsoluteAVX:
+    @pytest.mark.parametrize("arraysize",
+                             [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 18, 19])
+    @pytest.mark.parametrize("stride", [-4, -3, -2, -1, 1, 2, 3, 4])
+    @pytest.mark.parametrize("astype", [np.complex64, np.complex128])
+    # test to ensure masking and strides work as intended in the AVX implementation
+    def test_array(self, arraysize, stride, astype):
+        arr = np.ones(arraysize, dtype=astype)
+        abs_true = np.ones(arraysize, dtype=arr.real.dtype)
+        assert_equal(np.abs(arr[::stride]), abs_true[::stride])
+
+# Testcase taken as is from https://github.com/numpy/numpy/issues/16660
+class TestComplexAbsoluteMixedDTypes:
+    @pytest.mark.parametrize("stride", [-4, -3, -2, -1, 1, 2, 3, 4])
+    @pytest.mark.parametrize("astype", [np.complex64, np.complex128])
+    @pytest.mark.parametrize("func", ['abs', 'square', 'conjugate'])
+    def test_array(self, stride, astype, func):
+        dtype = [('template_id', '<i8'), ('bank_chisq', '<f4'),
+                 ('bank_chisq_dof', '<i8'), ('chisq', '<f4'), ('chisq_dof', '<i8'),
+                 ('cont_chisq', '<f4'), ('psd_var_val', '<f4'), ('sg_chisq', '<f4'),
+                 ('mycomplex', astype), ('time_index', '<i8')]
+        vec = np.array([
+                (0, 0., 0, -31.666483, 200, 0., 0.,  1.      ,  3.0 + 4.0j  ,  613090),   # noqa: E203,E501
+                (1, 0., 0, 260.91525 ,  42, 0., 0.,  1.      ,  5.0 + 12.0j ,  787315),   # noqa: E203,E501
+                (1, 0., 0,  52.15155 ,  42, 0., 0.,  1.      ,  8.0 + 15.0j ,  806641),   # noqa: E203,E501
+                (1, 0., 0,  52.430195,  42, 0., 0.,  1.      ,  7.0 + 24.0j , 1363540),   # noqa: E203,E501
+                (2, 0., 0, 304.43646 ,  58, 0., 0.,  1.      ,  20.0 + 21.0j,  787323),   # noqa: E203,E501
+                (3, 0., 0, 299.42108 ,  52, 0., 0.,  1.      ,  12.0 + 35.0j,  787332),   # noqa: E203,E501
+                (4, 0., 0,  39.4836  ,  28, 0., 0.,  9.182192,  9.0 + 40.0j ,  787304),   # noqa: E203,E501
+                (4, 0., 0,  76.83787 ,  28, 0., 0.,  1.      ,  28.0 + 45.0j, 1321869),   # noqa: E203,E501
+                (5, 0., 0, 143.26366 ,  24, 0., 0., 10.996129,  11.0 + 60.0j,  787299)],  # noqa: E203,E501
+            dtype=dtype)
+        myfunc = getattr(np, func)
+        a = vec['mycomplex']
+        g = myfunc(a[::stride])
+
+        b = vec['mycomplex'].copy()
+        h = myfunc(b[::stride])
+
+        assert_array_max_ulp(h.real, g.real, 1)
+        assert_array_max_ulp(h.imag, g.imag, 1)
diff --git a/python/user_packages/Python313/site-packages/numpy/_core/tests/test_unicode.py b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_unicode.py
new file mode 100644
index 0000000000000000000000000000000000000000..f0fbdcf2601f337b9d5bcb6856acb48799a8aa10
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_core/tests/test_unicode.py
@@ -0,0 +1,369 @@
+
+import numpy as np
+from numpy.testing import assert_, assert_array_equal, assert_equal
+
+
+def buffer_length(arr):
+    if isinstance(arr, str):
+        if not arr:
+            charmax = 0
+        else:
+            charmax = max(ord(c) for c in arr)
+        if charmax < 256:
+            size = 1
+        elif charmax < 65536:
+            size = 2
+        else:
+            size = 4
+        return size * len(arr)
+    v = memoryview(arr)
+    if v.shape is None:
+        return len(v) * v.itemsize
+    else:
+        return np.prod(v.shape) * v.itemsize
+
+
+# In both cases below we need to make sure that the byte swapped value (as
+# UCS4) is still a valid unicode:
+# Value that can be represented in UCS2 interpreters
+ucs2_value = '\u0900'
+# Value that cannot be represented in UCS2 interpreters (but can in UCS4)
+ucs4_value = '\U00100900'
+
+
+def test_string_cast():
+    str_arr = np.array(["1234", "1234\0\0"], dtype='S')
+    uni_arr1 = str_arr.astype('>U')
+    uni_arr2 = str_arr.astype('<U')
+
+    assert_array_equal(str_arr != uni_arr1, np.ones(2, dtype=bool))
+    assert_array_equal(uni_arr1 != str_arr, np.ones(2, dtype=bool))
+    assert_array_equal(str_arr == uni_arr1, np.zeros(2, dtype=bool))
+    assert_array_equal(uni_arr1 == str_arr, np.zeros(2, dtype=bool))
+
+    assert_array_equal(uni_arr1, uni_arr2)
+
+
+############################################################
+#    Creation tests
+############################################################
+
+class CreateZeros:
+    """Check the creation of zero-valued arrays"""
+
+    def content_check(self, ua, ua_scalar, nbytes):
+
+        # Check the length of the unicode base type
+        assert_(int(ua.dtype.str[2:]) == self.ulen)
+        # Check the length of the data buffer
+        assert_(buffer_length(ua) == nbytes)
+        # Small check that data in array element is ok
+        assert_(ua_scalar == '')
+        # Encode to ascii and double check
+        assert_(ua_scalar.encode('ascii') == b'')
+        # Check buffer lengths for scalars
+        assert_(buffer_length(ua_scalar) == 0)
+
+    def test_zeros0D(self):
+        # Check creation of 0-dimensional objects
+        ua = np.zeros((), dtype=f'U{self.ulen}')
+        self.content_check(ua, ua[()], 4 * self.ulen)
+
+    def test_zerosSD(self):
+        # Check creation of single-dimensional objects
+        ua = np.zeros((2,), dtype=f'U{self.ulen}')
+        self.content_check(ua, ua[0], 4 * self.ulen * 2)
+        self.content_check(ua, ua[1], 4 * self.ulen * 2)
+
+    def test_zerosMD(self):
+        # Check creation of multi-dimensional objects
+        ua = np.zeros((2, 3, 4), dtype=f'U{self.ulen}')
+        self.content_check(ua, ua[0, 0, 0], 4 * self.ulen * 2 * 3 * 4)
+        self.content_check(ua, ua[-1, -1, -1], 4 * self.ulen * 2 * 3 * 4)
+
+
+class TestCreateZeros_1(CreateZeros):
+    """Check the creation of zero-valued arrays (size 1)"""
+    ulen = 1
+
+
+class TestCreateZeros_2(CreateZeros):
+    """Check the creation of zero-valued arrays (size 2)"""
+    ulen = 2
+
+
+class TestCreateZeros_1009(CreateZeros):
+    """Check the creation of zero-valued arrays (size 1009)"""
+    ulen = 1009
+
+
+class CreateValues:
+    """Check the creation of unicode arrays with values"""
+
+    def content_check(self, ua, ua_scalar, nbytes):
+
+        # Check the length of the unicode base type
+        assert_(int(ua.dtype.str[2:]) == self.ulen)
+        # Check the length of the data buffer
+        assert_(buffer_length(ua) == nbytes)
+        # Small check that data in array element is ok
+        assert_(ua_scalar == self.ucs_value * self.ulen)
+        # Encode to UTF-8 and double check
+        assert_(ua_scalar.encode('utf-8') ==
+                        (self.ucs_value * self.ulen).encode('utf-8'))
+        # Check buffer lengths for scalars
+        if self.ucs_value == ucs4_value:
+            # In UCS2, the \U0010FFFF will be represented using a
+            # surrogate *pair*
+            assert_(buffer_length(ua_scalar) == 2 * 2 * self.ulen)
+        else:
+            # In UCS2, the \uFFFF will be represented using a
+            # regular 2-byte word
+            assert_(buffer_length(ua_scalar) == 2 * self.ulen)
+
+    def test_values0D(self):
+        # Check creation of 0-dimensional objects with values
+        ua = np.array(self.ucs_value * self.ulen, dtype=f'U{self.ulen}')
+        self.content_check(ua, ua[()], 4 * self.ulen)
+
+    def test_valuesSD(self):
+        # Check creation of single-dimensional objects with values
+        ua = np.array([self.ucs_value * self.ulen] * 2, dtype=f'U{self.ulen}')
+        self.content_check(ua, ua[0], 4 * self.ulen * 2)
+        self.content_check(ua, ua[1], 4 * self.ulen * 2)
+
+    def test_valuesMD(self):
+        # Check creation of multi-dimensional objects with values
+        data = [[[self.ucs_value * self.ulen] * 2] * 3] * 4
+        ua = np.array(data, dtype=f'U{self.ulen}')
+        self.content_check(ua, ua[0, 0, 0], 4 * self.ulen * 2 * 3 * 4)
+        self.content_check(ua, ua[-1, -1, -1], 4 * self.ulen * 2 * 3 * 4)
+
+
+class TestCreateValues_1_UCS2(CreateValues):
+    """Check the creation of valued arrays (size 1, UCS2 values)"""
+    ulen = 1
+    ucs_value = ucs2_value
+
+
+class TestCreateValues_1_UCS4(CreateValues):
+    """Check the creation of valued arrays (size 1, UCS4 values)"""
+    ulen = 1
+    ucs_value = ucs4_value
+
+
+class TestCreateValues_2_UCS2(CreateValues):
+    """Check the creation of valued arrays (size 2, UCS2 values)"""
+    ulen = 2
+    ucs_value = ucs2_value
+
+
+class TestCreateValues_2_UCS4(CreateValues):
+    """Check the creation of valued arrays (size 2, UCS4 values)"""
+    ulen = 2
+    ucs_value = ucs4_value
+
+
+class TestCreateValues_1009_UCS2(CreateValues):
+    """Check the creation of valued arrays (size 1009, UCS2 values)"""
+    ulen = 1009
+    ucs_value = ucs2_value
+
+
+class TestCreateValues_1009_UCS4(CreateValues):
+    """Check the creation of valued arrays (size 1009, UCS4 values)"""
+    ulen = 1009
+    ucs_value = ucs4_value
+
+
+############################################################
+#    Assignment tests
+############################################################
+
+class AssignValues:
+    """Check the assignment of unicode arrays with values"""
+
+    def content_check(self, ua, ua_scalar, nbytes):
+
+        # Check the length of the unicode base type
+        assert_(int(ua.dtype.str[2:]) == self.ulen)
+        # Check the length of the data buffer
+        assert_(buffer_length(ua) == nbytes)
+        # Small check that data in array element is ok
+        assert_(ua_scalar == self.ucs_value * self.ulen)
+        # Encode to UTF-8 and double check
+        assert_(ua_scalar.encode('utf-8') ==
+                        (self.ucs_value * self.ulen).encode('utf-8'))
+        # Check buffer lengths for scalars
+        if self.ucs_value == ucs4_value:
+            # In UCS2, the \U0010FFFF will be represented using a
+            # surrogate *pair*
+            assert_(buffer_length(ua_scalar) == 2 * 2 * self.ulen)
+        else:
+            # In UCS2, the \uFFFF will be represented using a
+            # regular 2-byte word
+            assert_(buffer_length(ua_scalar) == 2 * self.ulen)
+
+    def test_values0D(self):
+        # Check assignment of 0-dimensional objects with values
+        ua = np.zeros((), dtype=f'U{self.ulen}')
+        ua[()] = self.ucs_value * self.ulen
+        self.content_check(ua, ua[()], 4 * self.ulen)
+
+    def test_valuesSD(self):
+        # Check assignment of single-dimensional objects with values
+        ua = np.zeros((2,), dtype=f'U{self.ulen}')
+        ua[0] = self.ucs_value * self.ulen
+        self.content_check(ua, ua[0], 4 * self.ulen * 2)
+        ua[1] = self.ucs_value * self.ulen
+        self.content_check(ua, ua[1], 4 * self.ulen * 2)
+
+    def test_valuesMD(self):
+        # Check assignment of multi-dimensional objects with values
+        ua = np.zeros((2, 3, 4), dtype=f'U{self.ulen}')
+        ua[0, 0, 0] = self.ucs_value * self.ulen
+        self.content_check(ua, ua[0, 0, 0], 4 * self.ulen * 2 * 3 * 4)
+        ua[-1, -1, -1] = self.ucs_value * self.ulen
+        self.content_check(ua, ua[-1, -1, -1], 4 * self.ulen * 2 * 3 * 4)
+
+
+class TestAssignValues_1_UCS2(AssignValues):
+    """Check the assignment of valued arrays (size 1, UCS2 values)"""
+    ulen = 1
+    ucs_value = ucs2_value
+
+
+class TestAssignValues_1_UCS4(AssignValues):
+    """Check the assignment of valued arrays (size 1, UCS4 values)"""
+    ulen = 1
+    ucs_value = ucs4_value
+
+
+class TestAssignValues_2_UCS2(AssignValues):
+    """Check the assignment of valued arrays (size 2, UCS2 values)"""
+    ulen = 2
+    ucs_value = ucs2_value
+
+
+class TestAssignValues_2_UCS4(AssignValues):
+    """Check the assignment of valued arrays (size 2, UCS4 values)"""
+    ulen = 2
+    ucs_value = ucs4_value
+
+
+class TestAssignValues_1009_UCS2(AssignValues):
+    """Check the assignment of valued arrays (size 1009, UCS2 values)"""
+    ulen = 1009
+    ucs_value = ucs2_value
+
+
+class TestAssignValues_1009_UCS4(AssignValues):
+    """Check the assignment of valued arrays (size 1009, UCS4 values)"""
+    ulen = 1009
+    ucs_value = ucs4_value
+
+
+############################################################
+#    Byteorder tests
+############################################################
+
+class ByteorderValues:
+    """Check the byteorder of unicode arrays in round-trip conversions"""
+
+    def test_values0D(self):
+        # Check byteorder of 0-dimensional objects
+        ua = np.array(self.ucs_value * self.ulen, dtype=f'U{self.ulen}')
+        ua2 = ua.view(ua.dtype.newbyteorder())
+        # This changes the interpretation of the data region (but not the
+        #  actual data), therefore the returned scalars are not
+        #  the same (they are byte-swapped versions of each other).
+        assert_(ua[()] != ua2[()])
+        ua3 = ua2.view(ua2.dtype.newbyteorder())
+        # Arrays must be equal after the round-trip
+        assert_equal(ua, ua3)
+
+    def test_valuesSD(self):
+        # Check byteorder of single-dimensional objects
+        ua = np.array([self.ucs_value * self.ulen] * 2, dtype=f'U{self.ulen}')
+        ua2 = ua.view(ua.dtype.newbyteorder())
+        assert_((ua != ua2).all())
+        assert_(ua[-1] != ua2[-1])
+        ua3 = ua2.view(ua2.dtype.newbyteorder())
+        # Arrays must be equal after the round-trip
+        assert_equal(ua, ua3)
+
+    def test_valuesMD(self):
+        # Check byteorder of multi-dimensional objects
+        ua = np.array([[[self.ucs_value * self.ulen] * 2] * 3] * 4,
+                      dtype=f'U{self.ulen}')
+        ua2 = ua.view(ua.dtype.newbyteorder())
+        assert_((ua != ua2).all())
+        assert_(ua[-1, -1, -1] != ua2[-1, -1, -1])
+        ua3 = ua2.view(ua2.dtype.newbyteorder())
+        # Arrays must be equal after the round-trip
+        assert_equal(ua, ua3)
+
+    def test_values_cast(self):
+        # Check byteorder of when casting the array for a strided and
+        # contiguous array:
+        test1 = np.array([self.ucs_value * self.ulen] * 2, dtype=f'U{self.ulen}')
+        test2 = np.repeat(test1, 2)[::2]
+        for ua in (test1, test2):
+            ua2 = ua.astype(dtype=ua.dtype.newbyteorder())
+            assert_((ua == ua2).all())
+            assert_(ua[-1] == ua2[-1])
+            ua3 = ua2.astype(dtype=ua.dtype)
+            # Arrays must be equal after the round-trip
+            assert_equal(ua, ua3)
+
+    def test_values_updowncast(self):
+        # Check byteorder of when casting the array to a longer and shorter
+        # string length for strided and contiguous arrays
+        test1 = np.array([self.ucs_value * self.ulen] * 2, dtype=f'U{self.ulen}')
+        test2 = np.repeat(test1, 2)[::2]
+        for ua in (test1, test2):
+            # Cast to a longer type with zero padding
+            longer_type = np.dtype(f'U{self.ulen + 1}').newbyteorder()
+            ua2 = ua.astype(dtype=longer_type)
+            assert_((ua == ua2).all())
+            assert_(ua[-1] == ua2[-1])
+            # Cast back again with truncating:
+            ua3 = ua2.astype(dtype=ua.dtype)
+            # Arrays must be equal after the round-trip
+            assert_equal(ua, ua3)
+
+
+class TestByteorder_1_UCS2(ByteorderValues):
+    """Check the byteorder in unicode (size 1, UCS2 values)"""
+    ulen = 1
+    ucs_value = ucs2_value
+
+
+class TestByteorder_1_UCS4(ByteorderValues):
+    """Check the byteorder in unicode (size 1, UCS4 values)"""
+    ulen = 1
+    ucs_value = ucs4_value
+
+
+class TestByteorder_2_UCS2(ByteorderValues):
+    """Check the byteorder in unicode (size 2, UCS2 values)"""
+    ulen = 2
+    ucs_value = ucs2_value
+
+
+class TestByteorder_2_UCS4(ByteorderValues):
+    """Check the byteorder in unicode (size 2, UCS4 values)"""
+    ulen = 2
+    ucs_value = ucs4_value
+
+
+class TestByteorder_1009_UCS2(ByteorderValues):
+    """Check the byteorder in unicode (size 1009, UCS2 values)"""
+    ulen = 1009
+    ucs_value = ucs2_value
+
+
+class TestByteorder_1009_UCS4(ByteorderValues):
+    """Check the byteorder in unicode (size 1009, UCS4 values)"""
+    ulen = 1009
+    ucs_value = ucs4_value
diff --git a/python/user_packages/Python313/site-packages/numpy/_pyinstaller/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/__pycache__/__init__.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/__init__.py b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..3b885254b8e85f50489a3d348135482ee5f6fbc8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/__init__.py
@@ -0,0 +1,16 @@
+import pytest
+
+from numpy.testing import IS_EDITABLE, IS_WASM
+
+if IS_WASM:
+    pytest.skip(
+        "WASM/Pyodide does not use or support Fortran",
+        allow_module_level=True
+    )
+
+
+if IS_EDITABLE:
+    pytest.skip(
+        "Editable install doesn't support tests with a compile step",
+        allow_module_level=True
+    )
diff --git a/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/__pycache__/__init__.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/pyinstaller-smoke.py b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/pyinstaller-smoke.py
new file mode 100644
index 0000000000000000000000000000000000000000..99b8358ba04897cc0d2a534701648df742a733dc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/pyinstaller-smoke.py
@@ -0,0 +1,32 @@
+"""A crude *bit of everything* smoke test to verify PyInstaller compatibility.
+
+PyInstaller typically goes wrong by forgetting to package modules, extension
+modules or shared libraries. This script should aim to touch as many of those
+as possible in an attempt to trip a ModuleNotFoundError or a DLL load failure
+due to an uncollected resource. Missing resources are unlikely to lead to
+arithmetic errors so there's generally no need to verify any calculation's
+output - merely that it made it to the end OK. This script should not
+explicitly import any of numpy's submodules as that gives PyInstaller undue
+hints that those submodules exist and should be collected (accessing implicitly
+loaded submodules is OK).
+
+"""
+import numpy as np
+
+a = np.arange(1., 10.).reshape((3, 3)) % 5
+np.linalg.det(a)
+a @ a
+a @ a.T
+np.linalg.inv(a)
+np.sin(np.exp(a))
+np.linalg.svd(a)
+np.linalg.eigh(a)
+
+np.unique(np.random.randint(0, 10, 100))
+np.sort(np.random.uniform(0, 10, 100))
+
+np.fft.fft(np.exp(2j * np.pi * np.arange(8) / 8))
+np.ma.masked_array(np.arange(10), np.random.rand(10) < .5).sum()
+np.polynomial.Legendre([7, 8, 9]).roots()
+
+print("I made it!")
diff --git a/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/test_pyinstaller.py b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/test_pyinstaller.py
new file mode 100644
index 0000000000000000000000000000000000000000..d8d29ebbb94944c06fdf87962aecd50a6b4945d5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_pyinstaller/tests/test_pyinstaller.py
@@ -0,0 +1,35 @@
+import subprocess
+from pathlib import Path
+
+import pytest
+
+
+# PyInstaller has been very unproactive about replacing 'imp' with 'importlib'.
+@pytest.mark.filterwarnings('ignore::DeprecationWarning')
+# It also leaks io.BytesIO()s.
+@pytest.mark.filterwarnings('ignore::ResourceWarning')
+@pytest.mark.parametrize("mode", ["--onedir", "--onefile"])
+@pytest.mark.slow
+def test_pyinstaller(mode, tmp_path):
+    """Compile and run pyinstaller-smoke.py using PyInstaller."""
+
+    pyinstaller_cli = pytest.importorskip("PyInstaller.__main__").run
+
+    source = Path(__file__).with_name("pyinstaller-smoke.py").resolve()
+    args = [
+        # Place all generated files in ``tmp_path``.
+        '--workpath', str(tmp_path / "build"),
+        '--distpath', str(tmp_path / "dist"),
+        '--specpath', str(tmp_path),
+        mode,
+        str(source),
+    ]
+    pyinstaller_cli(args)
+
+    if mode == "--onefile":
+        exe = tmp_path / "dist" / source.stem
+    else:
+        exe = tmp_path / "dist" / source.stem / source.stem
+
+    p = subprocess.run([str(exe)], check=True, stdout=subprocess.PIPE)
+    assert p.stdout.strip() == b"I made it!"
diff --git a/python/user_packages/Python313/site-packages/numpy/_typing/__init__.py b/python/user_packages/Python313/site-packages/numpy/_typing/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..2237b259244d88535ee8d0e72b924db1927f7857
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_typing/__init__.py
@@ -0,0 +1,173 @@
+"""Private counterpart of ``numpy.typing``."""
+
+import sys
+
+from ._array_like import (
+    NDArray as NDArray,
+    _ArrayLike as _ArrayLike,
+    _ArrayLikeAnyString_co as _ArrayLikeAnyString_co,
+    _ArrayLikeBool_co as _ArrayLikeBool_co,
+    _ArrayLikeBytes_co as _ArrayLikeBytes_co,
+    _ArrayLikeComplex128_co as _ArrayLikeComplex128_co,
+    _ArrayLikeComplex_co as _ArrayLikeComplex_co,
+    _ArrayLikeDT64_co as _ArrayLikeDT64_co,
+    _ArrayLikeFloat64_co as _ArrayLikeFloat64_co,
+    _ArrayLikeFloat_co as _ArrayLikeFloat_co,
+    _ArrayLikeInt as _ArrayLikeInt,
+    _ArrayLikeInt_co as _ArrayLikeInt_co,
+    _ArrayLikeNumber_co as _ArrayLikeNumber_co,
+    _ArrayLikeObject_co as _ArrayLikeObject_co,
+    _ArrayLikeStr_co as _ArrayLikeStr_co,
+    _ArrayLikeString_co as _ArrayLikeString_co,
+    _ArrayLikeTD64_co as _ArrayLikeTD64_co,
+    _ArrayLikeUInt_co as _ArrayLikeUInt_co,
+    _ArrayLikeVoid_co as _ArrayLikeVoid_co,
+    _FiniteNestedSequence as _FiniteNestedSequence,
+    _SupportsArray as _SupportsArray,
+    _SupportsArrayFunc as _SupportsArrayFunc,
+)
+
+#
+from ._char_codes import (
+    _BoolCodes as _BoolCodes,
+    _ByteCodes as _ByteCodes,
+    _BytesCodes as _BytesCodes,
+    _CDoubleCodes as _CDoubleCodes,
+    _CharacterCodes as _CharacterCodes,
+    _CLongDoubleCodes as _CLongDoubleCodes,
+    _Complex64Codes as _Complex64Codes,
+    _Complex128Codes as _Complex128Codes,
+    _ComplexFloatingCodes as _ComplexFloatingCodes,
+    _CSingleCodes as _CSingleCodes,
+    _DoubleCodes as _DoubleCodes,
+    _DT64Codes as _DT64Codes,
+    _FlexibleCodes as _FlexibleCodes,
+    _Float16Codes as _Float16Codes,
+    _Float32Codes as _Float32Codes,
+    _Float64Codes as _Float64Codes,
+    _FloatingCodes as _FloatingCodes,
+    _GenericCodes as _GenericCodes,
+    _HalfCodes as _HalfCodes,
+    _InexactCodes as _InexactCodes,
+    _Int8Codes as _Int8Codes,
+    _Int16Codes as _Int16Codes,
+    _Int32Codes as _Int32Codes,
+    _Int64Codes as _Int64Codes,
+    _IntCCodes as _IntCCodes,
+    _IntCodes as _IntCodes,
+    _IntegerCodes as _IntegerCodes,
+    _IntPCodes as _IntPCodes,
+    _LongCodes as _LongCodes,
+    _LongDoubleCodes as _LongDoubleCodes,
+    _LongLongCodes as _LongLongCodes,
+    _NumberCodes as _NumberCodes,
+    _ObjectCodes as _ObjectCodes,
+    _ShortCodes as _ShortCodes,
+    _SignedIntegerCodes as _SignedIntegerCodes,
+    _SingleCodes as _SingleCodes,
+    _StrCodes as _StrCodes,
+    _StringCodes as _StringCodes,
+    _TD64Codes as _TD64Codes,
+    _UByteCodes as _UByteCodes,
+    _UInt8Codes as _UInt8Codes,
+    _UInt16Codes as _UInt16Codes,
+    _UInt32Codes as _UInt32Codes,
+    _UInt64Codes as _UInt64Codes,
+    _UIntCCodes as _UIntCCodes,
+    _UIntCodes as _UIntCodes,
+    _UIntPCodes as _UIntPCodes,
+    _ULongCodes as _ULongCodes,
+    _ULongLongCodes as _ULongLongCodes,
+    _UnsignedIntegerCodes as _UnsignedIntegerCodes,
+    _UShortCodes as _UShortCodes,
+    _VoidCodes as _VoidCodes,
+)
+
+#
+from ._dtype_like import (
+    _DTypeLike as _DTypeLike,
+    _DTypeLikeBool as _DTypeLikeBool,
+    _DTypeLikeBytes as _DTypeLikeBytes,
+    _DTypeLikeComplex as _DTypeLikeComplex,
+    _DTypeLikeComplex_co as _DTypeLikeComplex_co,
+    _DTypeLikeDT64 as _DTypeLikeDT64,
+    _DTypeLikeFloat as _DTypeLikeFloat,
+    _DTypeLikeInt as _DTypeLikeInt,
+    _DTypeLikeObject as _DTypeLikeObject,
+    _DTypeLikeStr as _DTypeLikeStr,
+    _DTypeLikeTD64 as _DTypeLikeTD64,
+    _DTypeLikeUInt as _DTypeLikeUInt,
+    _DTypeLikeVoid as _DTypeLikeVoid,
+    _HasDType as _HasDType,
+    _SupportsDType as _SupportsDType,
+    _VoidDTypeLike as _VoidDTypeLike,
+)
+
+#
+from ._nbit import (
+    _NBitByte as _NBitByte,
+    _NBitDouble as _NBitDouble,
+    _NBitHalf as _NBitHalf,
+    _NBitInt as _NBitInt,
+    _NBitIntC as _NBitIntC,
+    _NBitIntP as _NBitIntP,
+    _NBitLong as _NBitLong,
+    _NBitLongDouble as _NBitLongDouble,
+    _NBitLongLong as _NBitLongLong,
+    _NBitShort as _NBitShort,
+    _NBitSingle as _NBitSingle,
+)
+
+#
+from ._nbit_base import (  # type: ignore[deprecated]
+    NBitBase as NBitBase,  # pyright: ignore[reportDeprecated]
+    _8Bit as _8Bit,
+    _16Bit as _16Bit,
+    _32Bit as _32Bit,
+    _64Bit as _64Bit,
+    _96Bit as _96Bit,
+    _128Bit as _128Bit,
+)
+
+#
+from ._nested_sequence import _NestedSequence as _NestedSequence
+
+#
+from ._scalars import (
+    _BoolLike_co as _BoolLike_co,
+    _CharLike_co as _CharLike_co,
+    _ComplexLike_co as _ComplexLike_co,
+    _FloatLike_co as _FloatLike_co,
+    _IntLike_co as _IntLike_co,
+    _NumberLike_co as _NumberLike_co,
+    _ScalarLike_co as _ScalarLike_co,
+    _TD64Like_co as _TD64Like_co,
+    _UIntLike_co as _UIntLike_co,
+    _VoidLike_co as _VoidLike_co,
+)
+
+#
+from ._shape import _AnyShape as _AnyShape, _Shape as _Shape, _ShapeLike as _ShapeLike
+
+#
+from ._ufunc import (
+    _GUFunc_Nin2_Nout1 as _GUFunc_Nin2_Nout1,
+    _UFunc_Nin1_Nout1 as _UFunc_Nin1_Nout1,
+    _UFunc_Nin1_Nout2 as _UFunc_Nin1_Nout2,
+    _UFunc_Nin2_Nout1 as _UFunc_Nin2_Nout1,
+    _UFunc_Nin2_Nout2 as _UFunc_Nin2_Nout2,
+)
+
+# wrapping the public aliases in `TypeAliasType` helps with introspection readability
+if sys.version_info >= (3, 12):
+    from typing import TypeAliasType
+
+    from ._array_like import ArrayLike as _ArrayLikeAlias
+    from ._dtype_like import DTypeLike as _DTypeLikeAlias
+
+    ArrayLike = TypeAliasType("ArrayLike", _ArrayLikeAlias)
+    DTypeLike = TypeAliasType("DTypeLike", _DTypeLikeAlias)
+
+else:
+    from ._array_like import ArrayLike as ArrayLike
+    from ._dtype_like import DTypeLike as DTypeLike
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diff --git a/python/user_packages/Python313/site-packages/numpy/_typing/_scalars.py b/python/user_packages/Python313/site-packages/numpy/_typing/_scalars.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd51985e583d6663d157f647d0935f04ef192d28
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_typing/_scalars.py
@@ -0,0 +1,20 @@
+from typing import Any, TypeAlias
+
+import numpy as np
+
+# NOTE: `_StrLike_co` and `_BytesLike_co` are pointless, as `np.str_` and
+# `np.bytes_` are already subclasses of their builtin counterpart
+_CharLike_co: TypeAlias = str | bytes
+
+# The `<X>Like_co` type-aliases below represent all scalars that can be
+# coerced into `<X>` (with the casting rule `same_kind`)
+_BoolLike_co: TypeAlias = bool | np.bool
+_UIntLike_co: TypeAlias = bool | np.unsignedinteger | np.bool
+_IntLike_co: TypeAlias = int | np.integer | np.bool
+_FloatLike_co: TypeAlias = float | np.floating | np.integer | np.bool
+_ComplexLike_co: TypeAlias = complex | np.number | np.bool
+_NumberLike_co: TypeAlias = _ComplexLike_co
+_TD64Like_co: TypeAlias = int | np.timedelta64 | np.integer | np.bool
+# `_VoidLike_co` is technically not a scalar, but it's close enough
+_VoidLike_co: TypeAlias = tuple[Any, ...] | np.void
+_ScalarLike_co: TypeAlias = complex | str | bytes | np.generic
diff --git a/python/user_packages/Python313/site-packages/numpy/_typing/_shape.py b/python/user_packages/Python313/site-packages/numpy/_typing/_shape.py
new file mode 100644
index 0000000000000000000000000000000000000000..2325d60312f37c9870d1ed0f4f702e9b4b8c2087
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_typing/_shape.py
@@ -0,0 +1,8 @@
+from collections.abc import Sequence
+from typing import Any, SupportsIndex, TypeAlias
+
+_Shape: TypeAlias = tuple[int, ...]
+_AnyShape: TypeAlias = tuple[Any, ...]
+
+# Anything that can be coerced to a shape tuple
+_ShapeLike: TypeAlias = SupportsIndex | Sequence[SupportsIndex]
diff --git a/python/user_packages/Python313/site-packages/numpy/_typing/_ufunc.py b/python/user_packages/Python313/site-packages/numpy/_typing/_ufunc.py
new file mode 100644
index 0000000000000000000000000000000000000000..97cf20144b88f329083671c7fc8023b05c0a34de
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_typing/_ufunc.py
@@ -0,0 +1,7 @@
+from numpy import ufunc
+
+_UFunc_Nin1_Nout1 = ufunc
+_UFunc_Nin2_Nout1 = ufunc
+_UFunc_Nin1_Nout2 = ufunc
+_UFunc_Nin2_Nout2 = ufunc
+_GUFunc_Nin2_Nout1 = ufunc
diff --git a/python/user_packages/Python313/site-packages/numpy/_typing/_ufunc.pyi b/python/user_packages/Python313/site-packages/numpy/_typing/_ufunc.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..a95b58a8ea6c6ce50bfd568f646233845f9773c6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_typing/_ufunc.pyi
@@ -0,0 +1,975 @@
+"""A module with private type-check-only `numpy.ufunc` subclasses.
+
+The signatures of the ufuncs are too varied to reasonably type
+with a single class. So instead, `ufunc` has been expanded into
+four private subclasses, one for each combination of
+`~ufunc.nin` and `~ufunc.nout`.
+"""  # noqa: PYI021
+
+from _typeshed import Incomplete
+from types import EllipsisType
+from typing import (
+    Any,
+    Generic,
+    Literal,
+    LiteralString,
+    Never,
+    NoReturn,
+    Protocol,
+    SupportsIndex,
+    TypeAlias,
+    TypedDict,
+    TypeVar,
+    Unpack,
+    overload,
+    type_check_only,
+)
+
+import numpy as np
+from numpy import _CastingKind, _OrderKACF, ufunc
+from numpy.typing import NDArray
+
+from ._array_like import ArrayLike, _ArrayLikeBool_co, _ArrayLikeInt_co
+from ._dtype_like import DTypeLike
+from ._scalars import _ScalarLike_co
+from ._shape import _ShapeLike
+
+_T = TypeVar("_T")
+_2Tuple: TypeAlias = tuple[_T, _T]
+_3Tuple: TypeAlias = tuple[_T, _T, _T]
+_4Tuple: TypeAlias = tuple[_T, _T, _T, _T]
+
+_2PTuple: TypeAlias = tuple[_T, _T, *tuple[_T, ...]]
+_3PTuple: TypeAlias = tuple[_T, _T, _T, *tuple[_T, ...]]
+_4PTuple: TypeAlias = tuple[_T, _T, _T, _T, *tuple[_T, ...]]
+
+_NTypes = TypeVar("_NTypes", bound=int, covariant=True)
+_IDType = TypeVar("_IDType", covariant=True)
+_NameType = TypeVar("_NameType", bound=LiteralString, covariant=True)
+_Signature = TypeVar("_Signature", bound=LiteralString, covariant=True)
+
+_NIn = TypeVar("_NIn", bound=int, covariant=True)
+_NOut = TypeVar("_NOut", bound=int, covariant=True)
+_ReturnType_co = TypeVar("_ReturnType_co", covariant=True)
+_ArrayT = TypeVar("_ArrayT", bound=np.ndarray)
+
+@type_check_only
+class _SupportsArrayUFunc(Protocol):
+    def __array_ufunc__(
+        self,
+        ufunc: ufunc,
+        method: Literal["__call__", "reduce", "reduceat", "accumulate", "outer", "at"],
+        *inputs: Any,
+        **kwargs: Any,
+    ) -> Any: ...
+
+@type_check_only
+class _UFunc3Kwargs(TypedDict, total=False):
+    where: _ArrayLikeBool_co | None
+    casting: _CastingKind
+    order: _OrderKACF
+    subok: bool
+    signature: _3Tuple[str | None] | str | None
+
+@type_check_only
+class _ReduceKwargs(TypedDict, total=False):
+    initial: Incomplete  # = <no value>
+    where: _ArrayLikeBool_co | None  # = True
+
+# NOTE: `reduce`, `accumulate`, `reduceat` and `outer` raise a ValueError for
+# ufuncs that don't accept two input arguments and return one output argument.
+# In such cases the respective methods return `NoReturn`
+
+# NOTE: Similarly, `at` won't be defined for ufuncs that return
+# multiple outputs; in such cases `at` is typed to return `NoReturn`
+
+# NOTE: If 2 output types are returned then `out` must be a
+# 2-tuple of arrays. Otherwise `None` or a plain array are also acceptable
+
+# pyright: reportIncompatibleMethodOverride=false
+
+@type_check_only
+class _UFunc_Nin1_Nout1(ufunc, Generic[_NameType, _NTypes, _IDType]):  # type: ignore[misc]
+    @property
+    def __name__(self) -> _NameType: ...
+    @property
+    def __qualname__(self) -> _NameType: ...  # pyright: ignore[reportIncompatibleVariableOverride]
+    @property
+    def ntypes(self) -> _NTypes: ...
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[1]: ...
+    @property
+    def nout(self) -> Literal[1]: ...
+    @property
+    def nargs(self) -> Literal[2]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        /,
+        out: None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _2Tuple[str | None] = ...,
+    ) -> Incomplete: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _2Tuple[str | None] = ...,
+    ) -> NDArray[Incomplete]: ...
+    @overload
+    def __call__(
+        self,
+        x1: _SupportsArrayUFunc,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _2Tuple[str | None] = ...,
+    ) -> Incomplete: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+
+    def at(self, a: np.ndarray | _SupportsArrayUFunc, indices: _ArrayLikeInt_co, /) -> None: ...  # type: ignore[override]
+
+@type_check_only
+class _UFunc_Nin2_Nout1(ufunc, Generic[_NameType, _NTypes, _IDType]):  # type: ignore[misc]
+    @property
+    def __name__(self) -> _NameType: ...
+    @property
+    def __qualname__(self) -> _NameType: ...  # pyright: ignore[reportIncompatibleVariableOverride]
+    @property
+    def ntypes(self) -> _NTypes: ...
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[2]: ...
+    @property
+    def nout(self) -> Literal[1]: ...
+    @property
+    def nargs(self) -> Literal[3]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload  # (scalar, scalar) -> scalar
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        x2: _ScalarLike_co,
+        /,
+        out: EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> Incomplete: ...
+    @overload  # (array-like, array) -> array
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: np.ndarray,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # (array, array-like) -> array
+    def __call__(
+        self,
+        x1: np.ndarray,
+        x2: ArrayLike,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # (array-like, array-like, out=array) -> array
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        /,
+        out: np.ndarray | tuple[np.ndarray],
+        *,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # (array-like, array-like) -> array | scalar
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete] | Incomplete: ...
+
+    def accumulate(
+        self,
+        array: ArrayLike,
+        /,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        out: np.ndarray | EllipsisType | None = None,
+    ) -> NDArray[Incomplete]: ...
+
+    @overload  # type: ignore[override]
+    def reduce(  # out=None (default), keepdims=False (default)
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        out: None = None,
+        *,
+        keepdims: Literal[False] = False,
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> Incomplete: ...
+    @overload  # out=ndarray or out=...
+    def reduce(
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        *,
+        out: np.ndarray | EllipsisType,
+        keepdims: bool = False,
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # keepdims=True
+    def reduce(
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        out: np.ndarray | EllipsisType | None = None,
+        *,
+        keepdims: Literal[True],
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> NDArray[Incomplete]: ...
+
+    def reduceat(
+        self,
+        array: ArrayLike,
+        /,
+        indices: _ArrayLikeInt_co,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        out: np.ndarray | EllipsisType | None = None,
+    ) -> NDArray[Incomplete]: ...
+
+    @overload  # type: ignore[override]
+    def outer(  # (scalar, scalar) -> scalar
+        self,
+        A: _ScalarLike_co,
+        B: _ScalarLike_co,
+        /,
+        *,
+        out: None = None,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> Incomplete: ...
+    @overload  # (array-like, array) -> array
+    def outer(
+        self,
+        A: ArrayLike,
+        B: np.ndarray,
+        /,
+        *,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # (array, array-like) -> array
+    def outer(
+        self,
+        A: np.ndarray,
+        B: ArrayLike,
+        /,
+        *,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # (array-like, array-like, out=array) -> array
+    def outer(
+        self,
+        A: ArrayLike,
+        B: ArrayLike,
+        /,
+        *,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete]: ...
+    @overload  # (array-like, array-like) -> array | scalar
+    def outer(
+        self,
+        A: ArrayLike,
+        B: ArrayLike,
+        /,
+        *,
+        out: None = None,
+        dtype: DTypeLike | None = None,
+        **kwds: Unpack[_UFunc3Kwargs],
+    ) -> NDArray[Incomplete] | Incomplete: ...
+
+    def at(  # type: ignore[override]
+        self,
+        a: np.ndarray | _SupportsArrayUFunc,
+        indices: _ArrayLikeInt_co,
+        b: ArrayLike,
+        /,
+    ) -> None: ...
+
+@type_check_only
+class _UFunc_Nin1_Nout2(ufunc, Generic[_NameType, _NTypes, _IDType]):  # type: ignore[misc]
+    @property
+    def __name__(self) -> _NameType: ...
+    @property
+    def __qualname__(self) -> _NameType: ...  # pyright: ignore[reportIncompatibleVariableOverride]
+    @property
+    def ntypes(self) -> _NTypes: ...
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[1]: ...
+    @property
+    def nout(self) -> Literal[2]: ...
+    @property
+    def nargs(self) -> Literal[3]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        out1: EllipsisType | None = ...,
+        out2: None = None,
+        /,
+        *,
+        out: EllipsisType | None = ...,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _3Tuple[str | None] = ...,
+    ) -> _2Tuple[Incomplete]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        out1: np.ndarray | EllipsisType | None = ...,
+        out2: np.ndarray | None = ...,
+        /,
+        *,
+        out: _2Tuple[np.ndarray] | EllipsisType = ...,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _3Tuple[str | None] = ...,
+    ) -> _2Tuple[NDArray[Incomplete]]: ...
+    @overload
+    def __call__(
+        self,
+        x1: _SupportsArrayUFunc,
+        out1: np.ndarray | EllipsisType | None = ...,
+        out2: np.ndarray | None = ...,
+        /,
+        *,
+        out: _2Tuple[np.ndarray] | EllipsisType = ...,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _3Tuple[str | None] = ...,
+    ) -> _2Tuple[Incomplete]: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def at(self, a: Never, indices: Never, /) -> NoReturn: ...  # type: ignore[override]
+
+@type_check_only
+class _UFunc_Nin2_Nout2(ufunc, Generic[_NameType, _NTypes, _IDType]):  # type: ignore[misc]
+    @property
+    def __name__(self) -> _NameType: ...
+    @property
+    def __qualname__(self) -> _NameType: ...  # pyright: ignore[reportIncompatibleVariableOverride]
+    @property
+    def ntypes(self) -> _NTypes: ...
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[2]: ...
+    @property
+    def nout(self) -> Literal[2]: ...
+    @property
+    def nargs(self) -> Literal[4]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        x2: _ScalarLike_co,
+        out1: EllipsisType | None = ...,
+        out2: None = None,
+        /,
+        *,
+        out: EllipsisType | None = ...,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _4Tuple[str | None] = ...,
+    ) -> _2Tuple[Incomplete]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        out1: np.ndarray | EllipsisType | None = ...,
+        out2: np.ndarray | None = ...,
+        /,
+        *,
+        out: _2Tuple[np.ndarray] | EllipsisType = ...,
+        dtype: DTypeLike | None = None,
+        where: _ArrayLikeBool_co | None = True,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _4Tuple[str | None] = ...,
+    ) -> _2Tuple[NDArray[Incomplete]]: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def at(self, a: Never, indices: Never, b: Never, /) -> NoReturn: ...  # type: ignore[override]
+
+@type_check_only
+class _GUFunc_Nin2_Nout1(ufunc, Generic[_NameType, _NTypes, _IDType, _Signature]):  # type: ignore[misc]
+    @property
+    def __name__(self) -> _NameType: ...
+    @property
+    def __qualname__(self) -> _NameType: ...  # pyright: ignore[reportIncompatibleVariableOverride]
+    @property
+    def ntypes(self) -> _NTypes: ...
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[2]: ...
+    @property
+    def nout(self) -> Literal[1]: ...
+    @property
+    def nargs(self) -> Literal[3]: ...
+    @property
+    def signature(self) -> _Signature: ...
+
+    # Scalar for 1D array-likes; ndarray otherwise
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        /,
+        out: EllipsisType | None = None,
+        *,
+        dtype: DTypeLike | None = None,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _3Tuple[str | None] = ...,
+        axes: list[_2Tuple[SupportsIndex]] = ...,
+    ) -> Incomplete: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType,
+        *,
+        dtype: DTypeLike | None = None,
+        casting: _CastingKind = ...,
+        order: _OrderKACF = ...,
+        subok: bool = ...,
+        signature: str | _3Tuple[str | None] = ...,
+        axes: list[_2Tuple[SupportsIndex]] = ...,
+    ) -> NDArray[Incomplete]: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def at(self, a: Never, indices: Never, b: Never, /) -> NoReturn: ...  # type: ignore[override]
+
+@type_check_only
+class _PyFunc_Kwargs_Nargs2(TypedDict, total=False):
+    where: _ArrayLikeBool_co | None
+    casting: _CastingKind
+    order: _OrderKACF
+    dtype: DTypeLike
+    subok: bool
+    signature: str | tuple[DTypeLike, DTypeLike]
+
+@type_check_only
+class _PyFunc_Kwargs_Nargs3(TypedDict, total=False):
+    where: _ArrayLikeBool_co | None
+    casting: _CastingKind
+    order: _OrderKACF
+    dtype: DTypeLike
+    subok: bool
+    signature: str | tuple[DTypeLike, DTypeLike, DTypeLike]
+
+@type_check_only
+class _PyFunc_Kwargs_Nargs3P(TypedDict, total=False):
+    where: _ArrayLikeBool_co | None
+    casting: _CastingKind
+    order: _OrderKACF
+    dtype: DTypeLike
+    subok: bool
+    signature: str | _3PTuple[DTypeLike]
+
+@type_check_only
+class _PyFunc_Kwargs_Nargs4P(TypedDict, total=False):
+    where: _ArrayLikeBool_co | None
+    casting: _CastingKind
+    order: _OrderKACF
+    dtype: DTypeLike
+    subok: bool
+    signature: str | _4PTuple[DTypeLike]
+
+@type_check_only
+class _PyFunc_Nin1_Nout1(ufunc, Generic[_ReturnType_co, _IDType]):  # type: ignore[misc]
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[1]: ...
+    @property
+    def nout(self) -> Literal[1]: ...
+    @property
+    def nargs(self) -> Literal[2]: ...
+    @property
+    def ntypes(self) -> Literal[1]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        /,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs2],
+    ) -> _ReturnType_co: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        /,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs2],
+    ) -> _ReturnType_co | NDArray[np.object_]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        /,
+        out: _ArrayT | tuple[_ArrayT],
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs2],
+    ) -> _ArrayT: ...
+    @overload
+    def __call__(
+        self,
+        x1: _SupportsArrayUFunc,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs2],
+    ) -> Incomplete: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+
+    def at(self, a: np.ndarray | _SupportsArrayUFunc, indices: _ArrayLikeInt_co, /) -> None: ...  # type: ignore[override]
+
+@type_check_only
+class _PyFunc_Nin2_Nout1(ufunc, Generic[_ReturnType_co, _IDType]):  # type: ignore[misc]
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> Literal[2]: ...
+    @property
+    def nout(self) -> Literal[1]: ...
+    @property
+    def nargs(self) -> Literal[3]: ...
+    @property
+    def ntypes(self) -> Literal[1]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        x2: _ScalarLike_co,
+        /,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> _ReturnType_co: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        /,
+        out: EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> _ReturnType_co | NDArray[np.object_]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        /,
+        out: _ArrayT | tuple[_ArrayT],
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> _ArrayT: ...
+    @overload
+    def __call__(
+        self,
+        x1: _SupportsArrayUFunc,
+        x2: _SupportsArrayUFunc | ArrayLike,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> Incomplete: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: _SupportsArrayUFunc,
+        /,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> Incomplete: ...
+
+    @overload  # type: ignore[override]
+    def accumulate(
+        self,
+        array: ArrayLike,
+        /,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        out: EllipsisType | None = None,
+    ) -> NDArray[np.object_]: ...
+    @overload
+    def accumulate(
+        self,
+        array: ArrayLike,
+        /,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        *,
+        out: _ArrayT,
+    ) -> _ArrayT: ...
+
+    @overload  # type: ignore[override]
+    def reduce(  # out=array
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        *,
+        out: _ArrayT | tuple[_ArrayT],
+        keepdims: bool = False,
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> _ArrayT: ...
+    @overload  # out=...
+    def reduce(
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        *,
+        out: EllipsisType,
+        keepdims: bool = False,
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> NDArray[np.object_]: ...
+    @overload  # keepdims=True
+    def reduce(
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        out: EllipsisType | None = None,
+        *,
+        keepdims: Literal[True],
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> NDArray[np.object_]: ...
+    @overload
+    def reduce(
+        self,
+        array: ArrayLike,
+        /,
+        axis: _ShapeLike | None = 0,
+        dtype: DTypeLike | None = None,
+        out: EllipsisType | None = None,
+        keepdims: bool = False,
+        **kwargs: Unpack[_ReduceKwargs],
+    ) -> _ReturnType_co | NDArray[np.object_]: ...
+
+    @overload  # type: ignore[override]
+    def reduceat(
+        self,
+        array: ArrayLike,
+        /,
+        indices: _ArrayLikeInt_co,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        *,
+        out: _ArrayT | tuple[_ArrayT],
+    ) -> _ArrayT: ...
+    @overload
+    def reduceat(
+        self,
+        array: ArrayLike,
+        /,
+        indices: _ArrayLikeInt_co,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        out: EllipsisType | None = None,
+    ) -> NDArray[np.object_]: ...
+    @overload
+    def reduceat(
+        self,
+        array: _SupportsArrayUFunc,
+        /,
+        indices: _ArrayLikeInt_co,
+        axis: SupportsIndex = 0,
+        dtype: DTypeLike | None = None,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = None,
+    ) -> Incomplete: ...
+
+    @overload  # type: ignore[override]
+    def outer(
+        self,
+        A: _ScalarLike_co,
+        B: _ScalarLike_co,
+        /,
+        *,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> _ReturnType_co: ...
+    @overload
+    def outer(
+        self,
+        A: ArrayLike,
+        B: ArrayLike,
+        /,
+        *,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> _ReturnType_co | NDArray[np.object_]: ...
+    @overload
+    def outer(
+        self,
+        A: ArrayLike,
+        B: ArrayLike,
+        /,
+        *,
+        out: _ArrayT,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> _ArrayT: ...
+    @overload
+    def outer(
+        self,
+        A: _SupportsArrayUFunc,
+        B: _SupportsArrayUFunc | ArrayLike,
+        /,
+        *,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> Incomplete: ...
+    @overload
+    def outer(
+        self,
+        A: _ScalarLike_co,
+        B: _SupportsArrayUFunc | ArrayLike,
+        /,
+        *,
+        out: EllipsisType | None = None,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3],
+    ) -> Incomplete: ...
+
+    def at(  # type: ignore[override]
+        self,
+        a: np.ndarray | _SupportsArrayUFunc,
+        indices: _ArrayLikeInt_co,
+        b: ArrayLike,
+        /,
+    ) -> None: ...
+
+@type_check_only
+class _PyFunc_Nin3P_Nout1(ufunc, Generic[_ReturnType_co, _IDType, _NIn]):  # type: ignore[misc]
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> _NIn: ...
+    @property
+    def nout(self) -> Literal[1]: ...
+    @property
+    def ntypes(self) -> Literal[1]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        x2: _ScalarLike_co,
+        x3: _ScalarLike_co,
+        /,
+        *xs: _ScalarLike_co,
+        out: EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs4P],
+    ) -> _ReturnType_co: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        x3: ArrayLike,
+        /,
+        *xs: ArrayLike,
+        out: EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs4P],
+    ) -> _ReturnType_co | NDArray[np.object_]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        x2: ArrayLike,
+        x3: ArrayLike,
+        /,
+        *xs: ArrayLike,
+        out: _ArrayT | tuple[_ArrayT],
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs4P],
+    ) -> _ArrayT: ...
+    @overload
+    def __call__(
+        self,
+        x1: _SupportsArrayUFunc | ArrayLike,
+        x2: _SupportsArrayUFunc | ArrayLike,
+        x3: _SupportsArrayUFunc | ArrayLike,
+        /,
+        *xs: _SupportsArrayUFunc | ArrayLike,
+        out: np.ndarray | tuple[np.ndarray] | EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs4P],
+    ) -> Incomplete: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def at(self, a: Never, indices: Never, /, *args: Never) -> NoReturn: ...  # type: ignore[override]
+
+@type_check_only
+class _PyFunc_Nin1P_Nout2P(ufunc, Generic[_ReturnType_co, _IDType, _NIn, _NOut]):  # type: ignore[misc]
+    @property
+    def identity(self) -> _IDType: ...
+    @property
+    def nin(self) -> _NIn: ...
+    @property
+    def nout(self) -> _NOut: ...
+    @property
+    def ntypes(self) -> Literal[1]: ...
+    @property
+    def signature(self) -> None: ...
+
+    @overload
+    def __call__(
+        self,
+        x1: _ScalarLike_co,
+        /,
+        *xs: _ScalarLike_co,
+        out: EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3P],
+    ) -> _2PTuple[_ReturnType_co]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        /,
+        *xs: ArrayLike,
+        out: EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3P],
+    ) -> _2PTuple[_ReturnType_co | NDArray[np.object_]]: ...
+    @overload
+    def __call__(
+        self,
+        x1: ArrayLike,
+        /,
+        *xs: ArrayLike,
+        out: _2PTuple[_ArrayT],
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3P],
+    ) -> _2PTuple[_ArrayT]: ...
+    @overload
+    def __call__(
+        self,
+        x1: _SupportsArrayUFunc | ArrayLike,
+        /,
+        *xs: _SupportsArrayUFunc | ArrayLike,
+        out: _2PTuple[np.ndarray] | EllipsisType | None = ...,
+        **kwargs: Unpack[_PyFunc_Kwargs_Nargs3P],
+    ) -> Incomplete: ...
+
+    def accumulate(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduce(self, array: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def reduceat(self, array: Never, /, indices: Never) -> NoReturn: ...  # type: ignore[override]
+    def outer(self, A: Never, B: Never, /) -> NoReturn: ...  # type: ignore[override]
+    def at(self, a: Never, indices: Never, /, *args: Never) -> NoReturn: ...  # type: ignore[override]
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/__init__.py b/python/user_packages/Python313/site-packages/numpy/_utils/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..d101c03552543071c8c1b0082d73f7a411657465
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/__init__.py
@@ -0,0 +1,95 @@
+"""
+This is a module for defining private helpers which do not depend on the
+rest of NumPy.
+
+Everything in here must be self-contained so that it can be
+imported anywhere else without creating circular imports.
+If a utility requires the import of NumPy, it probably belongs
+in ``numpy._core``.
+"""
+
+import functools
+import warnings
+
+from ._convertions import asbytes, asunicode
+
+
+def set_module(module):
+    """Private decorator for overriding __module__ on a function or class.
+
+    Example usage::
+
+        @set_module('numpy')
+        def example():
+            pass
+
+        assert example.__module__ == 'numpy'
+    """
+    def decorator(func):
+        if module is not None:
+            if isinstance(func, type):
+                try:
+                    func._module_source = func.__module__
+                except (AttributeError):
+                    pass
+
+            func.__module__ = module
+        return func
+    return decorator
+
+
+def _rename_parameter(old_names, new_names, dep_version=None):
+    """
+    Generate decorator for backward-compatible keyword renaming.
+
+    Apply the decorator generated by `_rename_parameter` to functions with a
+    renamed parameter to maintain backward-compatibility.
+
+    After decoration, the function behaves as follows:
+    If only the new parameter is passed into the function, behave as usual.
+    If only the old parameter is passed into the function (as a keyword), raise
+    a DeprecationWarning if `dep_version` is provided, and behave as usual
+    otherwise.
+    If both old and new parameters are passed into the function, raise a
+    DeprecationWarning if `dep_version` is provided, and raise the appropriate
+    TypeError (function got multiple values for argument).
+
+    Parameters
+    ----------
+    old_names : list of str
+        Old names of parameters
+    new_name : list of str
+        New names of parameters
+    dep_version : str, optional
+        Version of NumPy in which old parameter was deprecated in the format
+        'X.Y.Z'. If supplied, the deprecation message will indicate that
+        support for the old parameter will be removed in version 'X.Y+2.Z'
+
+    Notes
+    -----
+    Untested with functions that accept *args. Probably won't work as written.
+
+    """
+    def decorator(fun):
+        @functools.wraps(fun)
+        def wrapper(*args, **kwargs):
+            __tracebackhide__ = True  # Hide traceback for py.test
+            for old_name, new_name in zip(old_names, new_names):
+                if old_name in kwargs:
+                    if dep_version:
+                        end_version = dep_version.split('.')
+                        end_version[1] = str(int(end_version[1]) + 2)
+                        end_version = '.'.join(end_version)
+                        msg = (f"Use of keyword argument `{old_name}` is "
+                               f"deprecated and replaced by `{new_name}`. "
+                               f"Support for `{old_name}` will be removed "
+                               f"in NumPy {end_version}.")
+                        warnings.warn(msg, DeprecationWarning, stacklevel=2)
+                    if new_name in kwargs:
+                        msg = (f"{fun.__name__}() got multiple values for "
+                               f"argument now known as `{new_name}`")
+                        raise TypeError(msg)
+                    kwargs[new_name] = kwargs.pop(old_name)
+            return fun(*args, **kwargs)
+        return wrapper
+    return decorator
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/__init__.pyi b/python/user_packages/Python313/site-packages/numpy/_utils/__init__.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..a27cc3c351032d5dd417b3021f9576fdbda90cbd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/__init__.pyi
@@ -0,0 +1,28 @@
+from _typeshed import IdentityFunction
+from collections.abc import Callable, Iterable
+from typing import Protocol, TypeVar, overload, type_check_only
+
+from ._convertions import asbytes as asbytes, asunicode as asunicode
+
+###
+
+_T = TypeVar("_T")
+_HasModuleT = TypeVar("_HasModuleT", bound=_HasModule)
+
+@type_check_only
+class _HasModule(Protocol):
+    __module__: str
+
+###
+
+@overload
+def set_module(module: None) -> IdentityFunction: ...
+@overload
+def set_module(module: str) -> Callable[[_HasModuleT], _HasModuleT]: ...
+
+#
+def _rename_parameter(
+    old_names: Iterable[str],
+    new_names: Iterable[str],
+    dep_version: str | None = None,
+) -> Callable[[Callable[..., _T]], Callable[..., _T]]: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/_utils/__pycache__/__init__.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/__pycache__/_pep440.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/_utils/__pycache__/_pep440.cpython-313.pyc
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index 0000000000000000000000000000000000000000..f5c6ad8f58196cc55bb1538944d0b47bdb37b10d
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diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/_convertions.py b/python/user_packages/Python313/site-packages/numpy/_utils/_convertions.py
new file mode 100644
index 0000000000000000000000000000000000000000..b6c0360c1ce749ef79b103bc32cb1cd78f0745b0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/_convertions.py
@@ -0,0 +1,18 @@
+"""
+A set of methods retained from np.compat module that
+are still used across codebase.
+"""
+
+__all__ = ["asunicode", "asbytes"]
+
+
+def asunicode(s):
+    if isinstance(s, bytes):
+        return s.decode('latin1')
+    return str(s)
+
+
+def asbytes(s):
+    if isinstance(s, bytes):
+        return s
+    return str(s).encode('latin1')
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/_convertions.pyi b/python/user_packages/Python313/site-packages/numpy/_utils/_convertions.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..63167182aa781f549f5f4b67b67e615c43e02c62
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/_convertions.pyi
@@ -0,0 +1,4 @@
+__all__ = ["asbytes", "asunicode"]
+
+def asunicode(s: bytes | str) -> str: ...
+def asbytes(s: bytes | str) -> str: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/_inspect.py b/python/user_packages/Python313/site-packages/numpy/_utils/_inspect.py
new file mode 100644
index 0000000000000000000000000000000000000000..772dd5b1da8cc292b40dcec757e2ea6acd3052a6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/_inspect.py
@@ -0,0 +1,192 @@
+"""Subset of inspect module from upstream python
+
+We use this instead of upstream because upstream inspect is slow to import, and
+significantly contributes to numpy import times. Importing this copy has almost
+no overhead.
+
+"""
+import types
+
+__all__ = ['getargspec', 'formatargspec']
+
+# ----------------------------------------------------------- type-checking
+def ismethod(object):
+    """Return true if the object is an instance method.
+
+    Instance method objects provide these attributes:
+        __doc__         documentation string
+        __name__        name with which this method was defined
+        im_class        class object in which this method belongs
+        im_func         function object containing implementation of method
+        im_self         instance to which this method is bound, or None
+
+    """
+    return isinstance(object, types.MethodType)
+
+def isfunction(object):
+    """Return true if the object is a user-defined function.
+
+    Function objects provide these attributes:
+        __doc__         documentation string
+        __name__        name with which this function was defined
+        func_code       code object containing compiled function bytecode
+        func_defaults   tuple of any default values for arguments
+        func_doc        (same as __doc__)
+        func_globals    global namespace in which this function was defined
+        func_name       (same as __name__)
+
+    """
+    return isinstance(object, types.FunctionType)
+
+def iscode(object):
+    """Return true if the object is a code object.
+
+    Code objects provide these attributes:
+        co_argcount     number of arguments (not including * or ** args)
+        co_code         string of raw compiled bytecode
+        co_consts       tuple of constants used in the bytecode
+        co_filename     name of file in which this code object was created
+        co_firstlineno  number of first line in Python source code
+        co_flags        bitmap: 1=optimized | 2=newlocals | 4=*arg | 8=**arg
+        co_lnotab       encoded mapping of line numbers to bytecode indices
+        co_name         name with which this code object was defined
+        co_names        tuple of names of local variables
+        co_nlocals      number of local variables
+        co_stacksize    virtual machine stack space required
+        co_varnames     tuple of names of arguments and local variables
+
+    """
+    return isinstance(object, types.CodeType)
+
+
+# ------------------------------------------------ argument list extraction
+# These constants are from Python's compile.h.
+CO_OPTIMIZED, CO_NEWLOCALS, CO_VARARGS, CO_VARKEYWORDS = 1, 2, 4, 8
+
+def getargs(co):
+    """Get information about the arguments accepted by a code object.
+
+    Three things are returned: (args, varargs, varkw), where 'args' is
+    a list of argument names (possibly containing nested lists), and
+    'varargs' and 'varkw' are the names of the * and ** arguments or None.
+
+    """
+
+    if not iscode(co):
+        raise TypeError('arg is not a code object')
+
+    nargs = co.co_argcount
+    names = co.co_varnames
+    args = list(names[:nargs])
+
+    # The following acrobatics are for anonymous (tuple) arguments.
+    # Which we do not need to support, so remove to avoid importing
+    # the dis module.
+    for i in range(nargs):
+        if args[i][:1] in ['', '.']:
+            raise TypeError("tuple function arguments are not supported")
+    varargs = None
+    if co.co_flags & CO_VARARGS:
+        varargs = co.co_varnames[nargs]
+        nargs = nargs + 1
+    varkw = None
+    if co.co_flags & CO_VARKEYWORDS:
+        varkw = co.co_varnames[nargs]
+    return args, varargs, varkw
+
+def getargspec(func):
+    """Get the names and default values of a function's arguments.
+
+    A tuple of four things is returned: (args, varargs, varkw, defaults).
+    'args' is a list of the argument names (it may contain nested lists).
+    'varargs' and 'varkw' are the names of the * and ** arguments or None.
+    'defaults' is an n-tuple of the default values of the last n arguments.
+
+    """
+
+    if ismethod(func):
+        func = func.__func__
+    if not isfunction(func):
+        raise TypeError('arg is not a Python function')
+    args, varargs, varkw = getargs(func.__code__)
+    return args, varargs, varkw, func.__defaults__
+
+def getargvalues(frame):
+    """Get information about arguments passed into a particular frame.
+
+    A tuple of four things is returned: (args, varargs, varkw, locals).
+    'args' is a list of the argument names (it may contain nested lists).
+    'varargs' and 'varkw' are the names of the * and ** arguments or None.
+    'locals' is the locals dictionary of the given frame.
+
+    """
+    args, varargs, varkw = getargs(frame.f_code)
+    return args, varargs, varkw, frame.f_locals
+
+def joinseq(seq):
+    if len(seq) == 1:
+        return '(' + seq[0] + ',)'
+    else:
+        return '(' + ', '.join(seq) + ')'
+
+def strseq(object, convert, join=joinseq):
+    """Recursively walk a sequence, stringifying each element.
+
+    """
+    if type(object) in [list, tuple]:
+        return join([strseq(_o, convert, join) for _o in object])
+    else:
+        return convert(object)
+
+def formatargspec(args, varargs=None, varkw=None, defaults=None,
+                  formatarg=str,
+                  formatvarargs=lambda name: '*' + name,
+                  formatvarkw=lambda name: '**' + name,
+                  formatvalue=lambda value: '=' + repr(value),
+                  join=joinseq):
+    """Format an argument spec from the 4 values returned by getargspec.
+
+    The first four arguments are (args, varargs, varkw, defaults).  The
+    other four arguments are the corresponding optional formatting functions
+    that are called to turn names and values into strings.  The ninth
+    argument is an optional function to format the sequence of arguments.
+
+    """
+    specs = []
+    if defaults:
+        firstdefault = len(args) - len(defaults)
+    for i in range(len(args)):
+        spec = strseq(args[i], formatarg, join)
+        if defaults and i >= firstdefault:
+            spec = spec + formatvalue(defaults[i - firstdefault])
+        specs.append(spec)
+    if varargs is not None:
+        specs.append(formatvarargs(varargs))
+    if varkw is not None:
+        specs.append(formatvarkw(varkw))
+    return '(' + ', '.join(specs) + ')'
+
+def formatargvalues(args, varargs, varkw, locals,
+                    formatarg=str,
+                    formatvarargs=lambda name: '*' + name,
+                    formatvarkw=lambda name: '**' + name,
+                    formatvalue=lambda value: '=' + repr(value),
+                    join=joinseq):
+    """Format an argument spec from the 4 values returned by getargvalues.
+
+    The first four arguments are (args, varargs, varkw, locals).  The
+    next four arguments are the corresponding optional formatting functions
+    that are called to turn names and values into strings.  The ninth
+    argument is an optional function to format the sequence of arguments.
+
+    """
+    def convert(name, locals=locals,
+                formatarg=formatarg, formatvalue=formatvalue):
+        return formatarg(name) + formatvalue(locals[name])
+    specs = [strseq(arg, convert, join) for arg in args]
+
+    if varargs:
+        specs.append(formatvarargs(varargs) + formatvalue(locals[varargs]))
+    if varkw:
+        specs.append(formatvarkw(varkw) + formatvalue(locals[varkw]))
+    return '(' + ', '.join(specs) + ')'
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/_inspect.pyi b/python/user_packages/Python313/site-packages/numpy/_utils/_inspect.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..b4158295136b272982b16c571ad2bb611be3df4b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/_inspect.pyi
@@ -0,0 +1,70 @@
+import types
+from _typeshed import SupportsLenAndGetItem
+from collections.abc import Callable, Mapping
+from typing import Any, Final, TypeAlias, TypeVar, overload
+from typing_extensions import TypeIs
+
+__all__ = ["formatargspec", "getargspec"]
+
+###
+
+_T = TypeVar("_T")
+_RT = TypeVar("_RT")
+
+_StrSeq: TypeAlias = SupportsLenAndGetItem[str]
+_NestedSeq: TypeAlias = list[_T | _NestedSeq[_T]] | tuple[_T | _NestedSeq[_T], ...]
+
+_JoinFunc: TypeAlias = Callable[[list[_T]], _T]
+_FormatFunc: TypeAlias = Callable[[_T], str]
+
+###
+
+CO_OPTIMIZED: Final = 1
+CO_NEWLOCALS: Final = 2
+CO_VARARGS: Final = 4
+CO_VARKEYWORDS: Final = 8
+
+###
+
+def ismethod(object: object) -> TypeIs[types.MethodType]: ...
+def isfunction(object: object) -> TypeIs[types.FunctionType]: ...
+def iscode(object: object) -> TypeIs[types.CodeType]: ...
+
+###
+
+def getargs(co: types.CodeType) -> tuple[list[str], str | None, str | None]: ...
+def getargspec(func: types.MethodType | types.FunctionType) -> tuple[list[str], str | None, str | None, tuple[Any, ...]]: ...
+def getargvalues(frame: types.FrameType) -> tuple[list[str], str | None, str | None, dict[str, Any]]: ...
+
+#
+def joinseq(seq: _StrSeq) -> str: ...
+
+#
+@overload
+def strseq(object: _NestedSeq[str], convert: Callable[[Any], Any], join: _JoinFunc[str] = ...) -> str: ...
+@overload
+def strseq(object: _NestedSeq[_T], convert: Callable[[_T], _RT], join: _JoinFunc[_RT]) -> _RT: ...
+
+#
+def formatargspec(
+    args: _StrSeq,
+    varargs: str | None = None,
+    varkw: str | None = None,
+    defaults: SupportsLenAndGetItem[object] | None = None,
+    formatarg: _FormatFunc[str] = ...,  # str
+    formatvarargs: _FormatFunc[str] = ...,  # "*{}".format
+    formatvarkw: _FormatFunc[str] = ...,  # "**{}".format
+    formatvalue: _FormatFunc[object] = ...,  # "={!r}".format
+    join: _JoinFunc[str] = ...,  # joinseq
+) -> str: ...
+def formatargvalues(
+    args: _StrSeq,
+    varargs: str | None,
+    varkw: str | None,
+    locals: Mapping[str, object] | None,
+    formatarg: _FormatFunc[str] = ...,  # str
+    formatvarargs: _FormatFunc[str] = ...,  # "*{}".format
+    formatvarkw: _FormatFunc[str] = ...,  # "**{}".format
+    formatvalue: _FormatFunc[object] = ...,  # "={!r}".format
+    join: _JoinFunc[str] = ...,  # joinseq
+) -> str: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/_pep440.py b/python/user_packages/Python313/site-packages/numpy/_utils/_pep440.py
new file mode 100644
index 0000000000000000000000000000000000000000..eda6b6ca0aaef4ac98a998452b5c9ab47bf5c8fe
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/_pep440.py
@@ -0,0 +1,486 @@
+"""Utility to compare pep440 compatible version strings.
+
+The LooseVersion and StrictVersion classes that distutils provides don't
+work; they don't recognize anything like alpha/beta/rc/dev versions.
+"""
+
+# Copyright (c) Donald Stufft and individual contributors.
+# All rights reserved.
+
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+
+#     1. Redistributions of source code must retain the above copyright notice,
+#        this list of conditions and the following disclaimer.
+
+#     2. Redistributions in binary form must reproduce the above copyright
+#        notice, this list of conditions and the following disclaimer in the
+#        documentation and/or other materials provided with the distribution.
+
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+
+import collections
+import itertools
+import re
+
+__all__ = [
+    "parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN",
+]
+
+
+# BEGIN packaging/_structures.py
+
+
+class Infinity:
+    def __repr__(self):
+        return "Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return True
+
+    def __ge__(self, other):
+        return True
+
+    def __neg__(self):
+        return NegativeInfinity
+
+
+Infinity = Infinity()
+
+
+class NegativeInfinity:
+    def __repr__(self):
+        return "-Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return True
+
+    def __le__(self, other):
+        return True
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+    def __neg__(self):
+        return Infinity
+
+
+# BEGIN packaging/version.py
+
+
+NegativeInfinity = NegativeInfinity()
+
+_Version = collections.namedtuple(
+    "_Version",
+    ["epoch", "release", "dev", "pre", "post", "local"],
+)
+
+
+def parse(version):
+    """
+    Parse the given version string and return either a :class:`Version` object
+    or a :class:`LegacyVersion` object depending on if the given version is
+    a valid PEP 440 version or a legacy version.
+    """
+    try:
+        return Version(version)
+    except InvalidVersion:
+        return LegacyVersion(version)
+
+
+class InvalidVersion(ValueError):
+    """
+    An invalid version was found, users should refer to PEP 440.
+    """
+
+
+class _BaseVersion:
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class LegacyVersion(_BaseVersion):
+
+    def __init__(self, version):
+        self._version = str(version)
+        self._key = _legacy_cmpkey(self._version)
+
+    def __str__(self):
+        return self._version
+
+    def __repr__(self):
+        return f"<LegacyVersion({str(self)!r})>"
+
+    @property
+    def public(self):
+        return self._version
+
+    @property
+    def base_version(self):
+        return self._version
+
+    @property
+    def local(self):
+        return None
+
+    @property
+    def is_prerelease(self):
+        return False
+
+    @property
+    def is_postrelease(self):
+        return False
+
+
+_legacy_version_component_re = re.compile(
+    r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE,
+)
+
+_legacy_version_replacement_map = {
+    "pre": "c", "preview": "c", "-": "final-", "rc": "c", "dev": "@",
+}
+
+
+def _parse_version_parts(s):
+    for part in _legacy_version_component_re.split(s):
+        part = _legacy_version_replacement_map.get(part, part)
+
+        if not part or part == ".":
+            continue
+
+        if part[:1] in "0123456789":
+            # pad for numeric comparison
+            yield part.zfill(8)
+        else:
+            yield "*" + part
+
+    # ensure that alpha/beta/candidate are before final
+    yield "*final"
+
+
+def _legacy_cmpkey(version):
+    # We hardcode an epoch of -1 here. A PEP 440 version can only have an epoch
+    # greater than or equal to 0. This will effectively put the LegacyVersion,
+    # which uses the defacto standard originally implemented by setuptools,
+    # as before all PEP 440 versions.
+    epoch = -1
+
+    # This scheme is taken from pkg_resources.parse_version setuptools prior to
+    # its adoption of the packaging library.
+    parts = []
+    for part in _parse_version_parts(version.lower()):
+        if part.startswith("*"):
+            # remove "-" before a prerelease tag
+            if part < "*final":
+                while parts and parts[-1] == "*final-":
+                    parts.pop()
+
+            # remove trailing zeros from each series of numeric parts
+            while parts and parts[-1] == "00000000":
+                parts.pop()
+
+        parts.append(part)
+    parts = tuple(parts)
+
+    return epoch, parts
+
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P<epoch>[0-9]+)!)?                           # epoch
+        (?P<release>[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P<pre>                                          # pre-release
+            [-_\.]?
+            (?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
+            [-_\.]?
+            (?P<pre_n>[0-9]+)?
+        )?
+        (?P<post>                                         # post release
+            (?:-(?P<post_n1>[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?P<post_l>post|rev|r)
+                [-_\.]?
+                (?P<post_n2>[0-9]+)?
+            )
+        )?
+        (?P<dev>                                          # dev release
+            [-_\.]?
+            (?P<dev_l>dev)
+            [-_\.]?
+            (?P<dev_n>[0-9]+)?
+        )?
+    )
+    (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+
+class Version(_BaseVersion):
+
+    _regex = re.compile(
+        r"^\s*" + VERSION_PATTERN + r"\s*$",
+        re.VERBOSE | re.IGNORECASE,
+    )
+
+    def __init__(self, version):
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion(f"Invalid version: '{version}'")
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(
+                match.group("pre_l"),
+                match.group("pre_n"),
+            ),
+            post=_parse_letter_version(
+                match.group("post_l"),
+                match.group("post_n1") or match.group("post_n2"),
+            ),
+            dev=_parse_letter_version(
+                match.group("dev_l"),
+                match.group("dev_n"),
+            ),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self):
+        return f"<Version({str(self)!r})>"
+
+    def __str__(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append(f"{self._version.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        # Pre-release
+        if self._version.pre is not None:
+            parts.append("".join(str(x) for x in self._version.pre))
+
+        # Post-release
+        if self._version.post is not None:
+            parts.append(f".post{self._version.post[1]}")
+
+        # Development release
+        if self._version.dev is not None:
+            parts.append(f".dev{self._version.dev[1]}")
+
+        # Local version segment
+        if self._version.local is not None:
+            parts.append(
+                f"+{'.'.join(str(x) for x in self._version.local)}"
+            )
+
+        return "".join(parts)
+
+    @property
+    def public(self):
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append(f"{self._version.epoch}!")
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        return "".join(parts)
+
+    @property
+    def local(self):
+        version_string = str(self)
+        if "+" in version_string:
+            return version_string.split("+", 1)[1]
+
+    @property
+    def is_prerelease(self):
+        return bool(self._version.dev or self._version.pre)
+
+    @property
+    def is_postrelease(self):
+        return bool(self._version.post)
+
+
+def _parse_letter_version(letter, number):
+    if letter:
+        # We assume there is an implicit 0 in a pre-release if there is
+        # no numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower-case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume that if we are given a number but not given a letter,
+        # then this is using the implicit post release syntax (e.g., 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+
+_local_version_seperators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local):
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_seperators.split(local)
+        )
+
+
+def _cmpkey(epoch, release, pre, post, dev, local):
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non-zero, then take the rest,
+    # re-reverse it back into the correct order, and make it a tuple and use
+    # that for our sorting key.
+    release = tuple(
+        reversed(list(
+            itertools.dropwhile(
+                lambda x: x == 0,
+                reversed(release),
+            )
+        ))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre-segment, but we _only_ want to do this
+    # if there is no pre- or a post-segment. If we have one of those, then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        pre = -Infinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        pre = Infinity
+
+    # Versions without a post-segment should sort before those with one.
+    if post is None:
+        post = -Infinity
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        dev = Infinity
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        local = -Infinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alphanumeric segments sort before numeric segments
+        # - Alphanumeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        local = tuple(
+            (i, "") if isinstance(i, int) else (-Infinity, i)
+            for i in local
+        )
+
+    return epoch, release, pre, post, dev, local
diff --git a/python/user_packages/Python313/site-packages/numpy/_utils/_pep440.pyi b/python/user_packages/Python313/site-packages/numpy/_utils/_pep440.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..3246be1205f798330fec26eb91031d0a03f364a1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/_utils/_pep440.pyi
@@ -0,0 +1,118 @@
+import re
+from collections.abc import Callable
+from typing import (
+    Any,
+    ClassVar,
+    Final,
+    Generic,
+    Literal as L,
+    NamedTuple,
+    TypeVar,
+    final,
+    type_check_only,
+)
+from typing_extensions import TypeIs
+
+__all__ = ["VERSION_PATTERN", "InvalidVersion", "LegacyVersion", "Version", "parse"]
+
+###
+
+_CmpKeyT = TypeVar("_CmpKeyT", bound=tuple[object, ...])
+_CmpKeyT_co = TypeVar("_CmpKeyT_co", bound=tuple[object, ...], default=tuple[Any, ...], covariant=True)
+
+###
+
+VERSION_PATTERN: Final[str] = ...
+
+class InvalidVersion(ValueError): ...
+
+@type_check_only
+@final
+class _InfinityType:
+    def __hash__(self) -> int: ...
+    def __eq__(self, other: object, /) -> TypeIs[_InfinityType]: ...
+    def __ne__(self, other: object, /) -> bool: ...
+    def __lt__(self, other: object, /) -> L[False]: ...
+    def __le__(self, other: object, /) -> L[False]: ...
+    def __gt__(self, other: object, /) -> L[True]: ...
+    def __ge__(self, other: object, /) -> L[True]: ...
+    def __neg__(self) -> _NegativeInfinityType: ...
+
+Infinity: Final[_InfinityType] = ...
+
+@type_check_only
+@final
+class _NegativeInfinityType:
+    def __hash__(self) -> int: ...
+    def __eq__(self, other: object, /) -> TypeIs[_NegativeInfinityType]: ...
+    def __ne__(self, other: object, /) -> bool: ...
+    def __lt__(self, other: object, /) -> L[True]: ...
+    def __le__(self, other: object, /) -> L[True]: ...
+    def __gt__(self, other: object, /) -> L[False]: ...
+    def __ge__(self, other: object, /) -> L[False]: ...
+    def __neg__(self) -> _InfinityType: ...
+
+NegativeInfinity: Final[_NegativeInfinityType] = ...
+
+class _Version(NamedTuple):
+    epoch: int
+    release: tuple[int, ...]
+    dev: tuple[str, int] | None
+    pre: tuple[str, int] | None
+    post: tuple[str, int] | None
+    local: tuple[str | int, ...] | None
+
+class _BaseVersion(Generic[_CmpKeyT_co]):
+    _key: _CmpKeyT_co
+    def __hash__(self) -> int: ...
+    def __eq__(self, other: _BaseVersion, /) -> bool: ...  # type: ignore[override]  # pyright: ignore[reportIncompatibleMethodOverride]
+    def __ne__(self, other: _BaseVersion, /) -> bool: ...  # type: ignore[override]  # pyright: ignore[reportIncompatibleMethodOverride]
+    def __lt__(self, other: _BaseVersion, /) -> bool: ...
+    def __le__(self, other: _BaseVersion, /) -> bool: ...
+    def __ge__(self, other: _BaseVersion, /) -> bool: ...
+    def __gt__(self, other: _BaseVersion, /) -> bool: ...
+    def _compare(self, /, other: _BaseVersion[_CmpKeyT], method: Callable[[_CmpKeyT_co, _CmpKeyT], bool]) -> bool: ...
+
+class LegacyVersion(_BaseVersion[tuple[L[-1], tuple[str, ...]]]):
+    _version: Final[str]
+    def __init__(self, /, version: str) -> None: ...
+    @property
+    def public(self) -> str: ...
+    @property
+    def base_version(self) -> str: ...
+    @property
+    def local(self) -> None: ...
+    @property
+    def is_prerelease(self) -> L[False]: ...
+    @property
+    def is_postrelease(self) -> L[False]: ...
+
+class Version(
+    _BaseVersion[
+        tuple[
+            int,  # epoch
+            tuple[int, ...],  # release
+            tuple[str, int] | _InfinityType | _NegativeInfinityType,  # pre
+            tuple[str, int] | _NegativeInfinityType,  # post
+            tuple[str, int] | _InfinityType,  # dev
+            tuple[tuple[int, L[""]] | tuple[_NegativeInfinityType, str], ...] | _NegativeInfinityType,  # local
+        ],
+    ],
+):
+    _regex: ClassVar[re.Pattern[str]] = ...
+    _version: Final[str]
+
+    def __init__(self, /, version: str) -> None: ...
+    @property
+    def public(self) -> str: ...
+    @property
+    def base_version(self) -> str: ...
+    @property
+    def local(self) -> str | None: ...
+    @property
+    def is_prerelease(self) -> bool: ...
+    @property
+    def is_postrelease(self) -> bool: ...
+
+#
+def parse(version: str) -> Version | LegacyVersion: ...
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index 0000000000000000000000000000000000000000..e84da4d1c8ac5a6bfd15bd67a302e8f937c36224
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/__init__.py
@@ -0,0 +1,9 @@
+def f2py_build_generator(name):
+    if name == "meson":
+        from ._meson import MesonBackend
+        return MesonBackend
+    elif name == "distutils":
+        from ._distutils import DistutilsBackend
+        return DistutilsBackend
+    else:
+        raise ValueError(f"Unknown backend: {name}")
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/__init__.pyi b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/__init__.pyi
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index 0000000000000000000000000000000000000000..28eee73e78271856173c7e61f2ea8b54c88f02f9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/__init__.pyi
@@ -0,0 +1,5 @@
+from typing import Literal as L
+
+from ._backend import Backend
+
+def f2py_build_generator(name: L["distutils", "meson"]) -> Backend: ...
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diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/__pycache__/_meson.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/__pycache__/_meson.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_backend.py b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_backend.py
new file mode 100644
index 0000000000000000000000000000000000000000..a7a7812579f7beb6d84ec5643b5b4b993172cfad
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_backend.py
@@ -0,0 +1,44 @@
+from abc import ABC, abstractmethod
+
+
+class Backend(ABC):
+    def __init__(
+        self,
+        modulename,
+        sources,
+        extra_objects,
+        build_dir,
+        include_dirs,
+        library_dirs,
+        libraries,
+        define_macros,
+        undef_macros,
+        f2py_flags,
+        sysinfo_flags,
+        fc_flags,
+        flib_flags,
+        setup_flags,
+        remove_build_dir,
+        extra_dat,
+    ):
+        self.modulename = modulename
+        self.sources = sources
+        self.extra_objects = extra_objects
+        self.build_dir = build_dir
+        self.include_dirs = include_dirs
+        self.library_dirs = library_dirs
+        self.libraries = libraries
+        self.define_macros = define_macros
+        self.undef_macros = undef_macros
+        self.f2py_flags = f2py_flags
+        self.sysinfo_flags = sysinfo_flags
+        self.fc_flags = fc_flags
+        self.flib_flags = flib_flags
+        self.setup_flags = setup_flags
+        self.remove_build_dir = remove_build_dir
+        self.extra_dat = extra_dat
+
+    @abstractmethod
+    def compile(self) -> None:
+        """Compile the wrapper."""
+        pass
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_backend.pyi b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_backend.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..839106ecefc260387366bc488f1f1a31ea6a8701
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_backend.pyi
@@ -0,0 +1,46 @@
+import abc
+from pathlib import Path
+from typing import Any, Final
+
+class Backend(abc.ABC):
+    modulename: Final[str]
+    sources: Final[list[str | Path]]
+    extra_objects: Final[list[str]]
+    build_dir: Final[str | Path]
+    include_dirs: Final[list[str | Path]]
+    library_dirs: Final[list[str | Path]]
+    libraries: Final[list[str]]
+    define_macros: Final[list[tuple[str, str | None]]]
+    undef_macros: Final[list[str]]
+    f2py_flags: Final[list[str]]
+    sysinfo_flags: Final[list[str]]
+    fc_flags: Final[list[str]]
+    flib_flags: Final[list[str]]
+    setup_flags: Final[list[str]]
+    remove_build_dir: Final[bool]
+    extra_dat: Final[dict[str, Any]]
+
+    def __init__(
+        self,
+        /,
+        modulename: str,
+        sources: list[str | Path],
+        extra_objects: list[str],
+        build_dir: str | Path,
+        include_dirs: list[str | Path],
+        library_dirs: list[str | Path],
+        libraries: list[str],
+        define_macros: list[tuple[str, str | None]],
+        undef_macros: list[str],
+        f2py_flags: list[str],
+        sysinfo_flags: list[str],
+        fc_flags: list[str],
+        flib_flags: list[str],
+        setup_flags: list[str],
+        remove_build_dir: bool,
+        extra_dat: dict[str, Any],
+    ) -> None: ...
+
+    #
+    @abc.abstractmethod
+    def compile(self) -> None: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_distutils.py b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_distutils.py
new file mode 100644
index 0000000000000000000000000000000000000000..ebce1e8c9071ba26047cba9789b04b8f8aeaeb86
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_distutils.py
@@ -0,0 +1,76 @@
+import os
+import shutil
+import sys
+import warnings
+
+from numpy.distutils.core import Extension, setup
+from numpy.distutils.misc_util import dict_append
+from numpy.distutils.system_info import get_info
+from numpy.exceptions import VisibleDeprecationWarning
+
+from ._backend import Backend
+
+
+class DistutilsBackend(Backend):
+    def __init__(sef, *args, **kwargs):
+        warnings.warn(
+            "\ndistutils has been deprecated since NumPy 1.26.x\n"
+            "Use the Meson backend instead, or generate wrappers"
+            " without -c and use a custom build script",
+            VisibleDeprecationWarning,
+            stacklevel=2,
+        )
+        super().__init__(*args, **kwargs)
+
+    def compile(self):
+        num_info = {}
+        if num_info:
+            self.include_dirs.extend(num_info.get("include_dirs", []))
+        ext_args = {
+            "name": self.modulename,
+            "sources": self.sources,
+            "include_dirs": self.include_dirs,
+            "library_dirs": self.library_dirs,
+            "libraries": self.libraries,
+            "define_macros": self.define_macros,
+            "undef_macros": self.undef_macros,
+            "extra_objects": self.extra_objects,
+            "f2py_options": self.f2py_flags,
+        }
+
+        if self.sysinfo_flags:
+            for n in self.sysinfo_flags:
+                i = get_info(n)
+                if not i:
+                    print(
+                        f"No {n!r} resources found"
+                        "in system (try `f2py --help-link`)"
+                    )
+                dict_append(ext_args, **i)
+
+        ext = Extension(**ext_args)
+
+        sys.argv = [sys.argv[0]] + self.setup_flags
+        sys.argv.extend(
+            [
+                "build",
+                "--build-temp",
+                self.build_dir,
+                "--build-base",
+                self.build_dir,
+                "--build-platlib",
+                ".",
+                "--disable-optimization",
+            ]
+        )
+
+        if self.fc_flags:
+            sys.argv.extend(["config_fc"] + self.fc_flags)
+        if self.flib_flags:
+            sys.argv.extend(["build_ext"] + self.flib_flags)
+
+        setup(ext_modules=[ext])
+
+        if self.remove_build_dir and os.path.exists(self.build_dir):
+            print(f"Removing build directory {self.build_dir}")
+            shutil.rmtree(self.build_dir)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_distutils.pyi b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_distutils.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..a7f0d9c82492c627adb456cb7dd9f1a2e3d9c1e3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_distutils.pyi
@@ -0,0 +1,13 @@
+from typing_extensions import deprecated, override
+
+from ._backend import Backend
+
+class DistutilsBackend(Backend):
+    @deprecated(
+        "distutils has been deprecated since NumPy 1.26.x. Use the Meson backend instead, or generate wrappers without -c and "
+        "use a custom build script"
+    )
+    # NOTE: the `sef` typo matches runtime
+    def __init__(sef, *args: object, **kwargs: object) -> None: ...
+    @override
+    def compile(self) -> None: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_meson.py b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_meson.py
new file mode 100644
index 0000000000000000000000000000000000000000..ada392575d190388aaecfd63d62ad0dc3302c91a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_meson.py
@@ -0,0 +1,244 @@
+import errno
+import os
+import re
+import shutil
+import subprocess
+import sys
+from itertools import chain
+from pathlib import Path
+from string import Template
+
+from ._backend import Backend
+
+
+class MesonTemplate:
+    """Template meson build file generation class."""
+
+    def __init__(
+        self,
+        modulename: str,
+        sources: list[Path],
+        deps: list[str],
+        libraries: list[str],
+        library_dirs: list[Path],
+        include_dirs: list[Path],
+        object_files: list[Path],
+        linker_args: list[str],
+        fortran_args: list[str],
+        build_type: str,
+        python_exe: str,
+    ):
+        self.modulename = modulename
+        self.build_template_path = (
+            Path(__file__).parent.absolute() / "meson.build.template"
+        )
+        self.sources = sources
+        self.deps = deps
+        self.libraries = libraries
+        self.library_dirs = library_dirs
+        if include_dirs is not None:
+            self.include_dirs = include_dirs
+        else:
+            self.include_dirs = []
+        self.substitutions = {}
+        self.objects = object_files
+        # Convert args to '' wrapped variant for meson
+        self.fortran_args = [
+            f"'{x}'" if not (x.startswith("'") and x.endswith("'")) else x
+            for x in fortran_args
+        ]
+        self.pipeline = [
+            self.initialize_template,
+            self.sources_substitution,
+            self.objects_substitution,
+            self.deps_substitution,
+            self.include_substitution,
+            self.libraries_substitution,
+            self.fortran_args_substitution,
+        ]
+        self.build_type = build_type
+        self.python_exe = python_exe
+        self.indent = " " * 21
+
+    def meson_build_template(self) -> str:
+        if not self.build_template_path.is_file():
+            raise FileNotFoundError(
+                errno.ENOENT,
+                "Meson build template"
+                f" {self.build_template_path.absolute()}"
+                " does not exist.",
+            )
+        return self.build_template_path.read_text()
+
+    def initialize_template(self) -> None:
+        self.substitutions["modulename"] = self.modulename
+        self.substitutions["buildtype"] = self.build_type
+        self.substitutions["python"] = self.python_exe
+
+    def sources_substitution(self) -> None:
+        self.substitutions["source_list"] = ",\n".join(
+            [f"{self.indent}'''{source}'''," for source in self.sources]
+        )
+
+    def objects_substitution(self) -> None:
+        self.substitutions["obj_list"] = ",\n".join(
+            [f"{self.indent}'''{obj}'''," for obj in self.objects]
+        )
+
+    def deps_substitution(self) -> None:
+        self.substitutions["dep_list"] = f",\n{self.indent}".join(
+            [f"{self.indent}dependency('{dep}')," for dep in self.deps]
+        )
+
+    def libraries_substitution(self) -> None:
+        self.substitutions["lib_dir_declarations"] = "\n".join(
+            [
+                f"lib_dir_{i} = declare_dependency(link_args : ['''-L{lib_dir}'''])"
+                for i, lib_dir in enumerate(self.library_dirs)
+            ]
+        )
+
+        self.substitutions["lib_declarations"] = "\n".join(
+            [
+                f"{lib.replace('.', '_')} = declare_dependency(link_args : ['-l{lib}'])"
+                for lib in self.libraries
+            ]
+        )
+
+        self.substitutions["lib_list"] = f"\n{self.indent}".join(
+            [f"{self.indent}{lib.replace('.', '_')}," for lib in self.libraries]
+        )
+        self.substitutions["lib_dir_list"] = f"\n{self.indent}".join(
+            [f"{self.indent}lib_dir_{i}," for i in range(len(self.library_dirs))]
+        )
+
+    def include_substitution(self) -> None:
+        self.substitutions["inc_list"] = f",\n{self.indent}".join(
+            [f"{self.indent}'''{inc}'''," for inc in self.include_dirs]
+        )
+
+    def fortran_args_substitution(self) -> None:
+        if self.fortran_args:
+            self.substitutions["fortran_args"] = (
+                f"{self.indent}fortran_args: [{', '.join(list(self.fortran_args))}],"
+            )
+        else:
+            self.substitutions["fortran_args"] = ""
+
+    def generate_meson_build(self):
+        for node in self.pipeline:
+            node()
+        template = Template(self.meson_build_template())
+        meson_build = template.substitute(self.substitutions)
+        meson_build = meson_build.replace(",,", ",")
+        return meson_build
+
+
+class MesonBackend(Backend):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.dependencies = self.extra_dat.get("dependencies", [])
+        self.meson_build_dir = "bbdir"
+        self.build_type = (
+            "debug" if any("debug" in flag for flag in self.fc_flags) else "release"
+        )
+        self.fc_flags = _get_flags(self.fc_flags)
+
+    def _move_exec_to_root(self, build_dir: Path):
+        walk_dir = Path(build_dir) / self.meson_build_dir
+        path_objects = chain(
+            walk_dir.glob(f"{self.modulename}*.so"),
+            walk_dir.glob(f"{self.modulename}*.pyd"),
+            walk_dir.glob(f"{self.modulename}*.dll"),
+        )
+        # Same behavior as distutils
+        # https://github.com/numpy/numpy/issues/24874#issuecomment-1835632293
+        for path_object in path_objects:
+            dest_path = Path.cwd() / path_object.name
+            if dest_path.exists():
+                dest_path.unlink()
+            shutil.copy2(path_object, dest_path)
+            os.remove(path_object)
+
+    def write_meson_build(self, build_dir: Path) -> None:
+        """Writes the meson build file at specified location"""
+        meson_template = MesonTemplate(
+            self.modulename,
+            self.sources,
+            self.dependencies,
+            self.libraries,
+            self.library_dirs,
+            self.include_dirs,
+            self.extra_objects,
+            self.flib_flags,
+            self.fc_flags,
+            self.build_type,
+            sys.executable,
+        )
+        src = meson_template.generate_meson_build()
+        Path(build_dir).mkdir(parents=True, exist_ok=True)
+        meson_build_file = Path(build_dir) / "meson.build"
+        meson_build_file.write_text(src)
+        return meson_build_file
+
+    def _run_subprocess_command(self, command, cwd):
+        subprocess.run(command, cwd=cwd, check=True)
+
+    def run_meson(self, build_dir: Path):
+        setup_command = ["meson", "setup", self.meson_build_dir]
+        self._run_subprocess_command(setup_command, build_dir)
+        compile_command = ["meson", "compile", "-C", self.meson_build_dir]
+        self._run_subprocess_command(compile_command, build_dir)
+
+    def compile(self) -> None:
+        self.sources = _prepare_sources(self.modulename, self.sources, self.build_dir)
+        _prepare_objects(self.modulename, self.extra_objects, self.build_dir)
+        self.write_meson_build(self.build_dir)
+        self.run_meson(self.build_dir)
+        self._move_exec_to_root(self.build_dir)
+
+
+def _prepare_sources(mname, sources, bdir):
+    extended_sources = sources.copy()
+    Path(bdir).mkdir(parents=True, exist_ok=True)
+    # Copy sources
+    for source in sources:
+        if Path(source).exists() and Path(source).is_file():
+            shutil.copy(source, bdir)
+    generated_sources = [
+        Path(f"{mname}module.c"),
+        Path(f"{mname}-f2pywrappers2.f90"),
+        Path(f"{mname}-f2pywrappers.f"),
+    ]
+    bdir = Path(bdir)
+    for generated_source in generated_sources:
+        if generated_source.exists():
+            shutil.copy(generated_source, bdir / generated_source.name)
+            extended_sources.append(generated_source.name)
+            generated_source.unlink()
+    extended_sources = [
+        Path(source).name
+        for source in extended_sources
+        if not Path(source).suffix == ".pyf"
+    ]
+    return extended_sources
+
+def _prepare_objects(mname, objects, bdir):
+    Path(bdir).mkdir(parents=True, exist_ok=True)
+    # Copy objects
+    for obj in objects:
+        if Path(obj).exists() and Path(obj).is_file():
+            shutil.copy(obj, bdir)
+
+def _get_flags(fc_flags):
+    flag_values = []
+    flag_pattern = re.compile(r"--f(77|90)flags=(.*)")
+    for flag in fc_flags:
+        match_result = flag_pattern.match(flag)
+        if match_result:
+            values = match_result.group(2).strip().split()
+            values = [val.strip("'\"") for val in values]
+            flag_values.extend(values)
+    # Hacky way to preserve order of flags
+    unique_flags = list(dict.fromkeys(flag_values))
+    return unique_flags
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_meson.pyi b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_meson.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..1f51b2be452e583a14b8f2e52f47ba4cfcd6addd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/_meson.pyi
@@ -0,0 +1,62 @@
+from collections.abc import Callable
+from pathlib import Path
+from typing import Final, Literal as L
+from typing_extensions import override
+
+from ._backend import Backend
+
+class MesonTemplate:
+    modulename: Final[str]
+    build_template_path: Final[Path]
+    sources: Final[list[str | Path]]
+    deps: Final[list[str]]
+    libraries: Final[list[str]]
+    library_dirs: Final[list[str | Path]]
+    include_dirs: Final[list[str | Path]]
+    substitutions: Final[dict[str, str]]
+    objects: Final[list[str | Path]]
+    fortran_args: Final[list[str]]
+    pipeline: Final[list[Callable[[], None]]]
+    build_type: Final[str]
+    python_exe: Final[str]
+    indent: Final[str]
+
+    def __init__(
+        self,
+        /,
+        modulename: str,
+        sources: list[Path],
+        deps: list[str],
+        libraries: list[str],
+        library_dirs: list[str | Path],
+        include_dirs: list[str | Path],
+        object_files: list[str | Path],
+        linker_args: list[str],
+        fortran_args: list[str],
+        build_type: str,
+        python_exe: str,
+    ) -> None: ...
+
+    #
+    def initialize_template(self) -> None: ...
+    def sources_substitution(self) -> None: ...
+    def objects_substitution(self) -> None: ...
+    def deps_substitution(self) -> None: ...
+    def libraries_substitution(self) -> None: ...
+    def include_substitution(self) -> None: ...
+    def fortran_args_substitution(self) -> None: ...
+
+    #
+    def meson_build_template(self) -> str: ...
+    def generate_meson_build(self) -> str: ...
+
+class MesonBackend(Backend):
+    dependencies: list[str]
+    meson_build_dir: L["bdir"]
+    build_type: L["debug", "release"]
+
+    def __init__(self, /, *args: object, **kwargs: object) -> None: ...
+    def write_meson_build(self, /, build_dir: Path) -> None: ...
+    def run_meson(self, /, build_dir: Path) -> None: ...
+    @override
+    def compile(self) -> None: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/_backends/meson.build.template b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/meson.build.template
new file mode 100644
index 0000000000000000000000000000000000000000..59f48a2944c2208c0014ef232bf2e9eac7767cff
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/_backends/meson.build.template
@@ -0,0 +1,58 @@
+project('${modulename}',
+        ['c', 'fortran'],
+        version : '0.1',
+        meson_version: '>= 1.1.0',
+        default_options : [
+                            'warning_level=1',
+                            'buildtype=${buildtype}'
+                          ])
+fc = meson.get_compiler('fortran')
+
+py = import('python').find_installation('''${python}''', pure: false)
+py_dep = py.dependency()
+
+incdir_numpy = run_command(py,
+  ['-c', 'import os; os.chdir(".."); import numpy; print(numpy.get_include())'],
+  check : true
+).stdout().strip()
+
+incdir_f2py = run_command(py,
+    ['-c', 'import os; os.chdir(".."); import numpy.f2py; print(numpy.f2py.get_include())'],
+    check : true
+).stdout().strip()
+
+inc_np = include_directories(incdir_numpy)
+np_dep = declare_dependency(include_directories: inc_np)
+
+incdir_f2py = incdir_numpy / '..' / '..' / 'f2py' / 'src'
+inc_f2py = include_directories(incdir_f2py)
+fortranobject_c = incdir_f2py / 'fortranobject.c'
+
+inc_np = include_directories(incdir_numpy, incdir_f2py)
+# gh-25000
+quadmath_dep = fc.find_library('quadmath', required: false)
+
+${lib_declarations}
+${lib_dir_declarations}
+
+py.extension_module('${modulename}',
+                     [
+${source_list},
+                     fortranobject_c
+                     ],
+                     include_directories: [
+                     inc_np,
+${inc_list}
+                     ],
+                     objects: [
+${obj_list}
+                     ],
+                     dependencies : [
+                     py_dep,
+                     quadmath_dep,
+${dep_list}
+${lib_list}
+${lib_dir_list}
+                     ],
+${fortran_args}
+                     install : true)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/src/fortranobject.c b/python/user_packages/Python313/site-packages/numpy/f2py/src/fortranobject.c
new file mode 100644
index 0000000000000000000000000000000000000000..53e6879e8cdcacac8c9fadaf88ccd3ee6a1e4cb2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/src/fortranobject.c
@@ -0,0 +1,1436 @@
+#define FORTRANOBJECT_C
+#include "fortranobject.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+  This file implements: FortranObject, array_from_pyobj, copy_ND_array
+
+  Author: Pearu Peterson <pearu@cens.ioc.ee>
+  $Revision: 1.52 $
+  $Date: 2005/07/11 07:44:20 $
+*/
+
+int
+F2PyDict_SetItemString(PyObject *dict, char *name, PyObject *obj)
+{
+    if (obj == NULL) {
+        fprintf(stderr, "Error loading %s\n", name);
+        if (PyErr_Occurred()) {
+            PyErr_Print();
+            PyErr_Clear();
+        }
+        return -1;
+    }
+    return PyDict_SetItemString(dict, name, obj);
+}
+
+/*
+ * Python-only fallback for thread-local callback pointers
+ */
+void *
+F2PySwapThreadLocalCallbackPtr(char *key, void *ptr)
+{
+    PyObject *local_dict, *value;
+    void *prev;
+
+    local_dict = PyThreadState_GetDict();
+    if (local_dict == NULL) {
+        Py_FatalError(
+                "F2PySwapThreadLocalCallbackPtr: PyThreadState_GetDict "
+                "failed");
+    }
+
+    value = PyDict_GetItemString(local_dict, key); // noqa: borrowed-ref OK
+    if (value != NULL) {
+        prev = PyLong_AsVoidPtr(value);
+        if (PyErr_Occurred()) {
+            Py_FatalError(
+                    "F2PySwapThreadLocalCallbackPtr: PyLong_AsVoidPtr failed");
+        }
+    }
+    else {
+        prev = NULL;
+    }
+
+    value = PyLong_FromVoidPtr((void *)ptr);
+    if (value == NULL) {
+        Py_FatalError(
+                "F2PySwapThreadLocalCallbackPtr: PyLong_FromVoidPtr failed");
+    }
+
+    if (PyDict_SetItemString(local_dict, key, value) != 0) {
+        Py_FatalError(
+                "F2PySwapThreadLocalCallbackPtr: PyDict_SetItemString failed");
+    }
+
+    Py_DECREF(value);
+
+    return prev;
+}
+
+void *
+F2PyGetThreadLocalCallbackPtr(char *key)
+{
+    PyObject *local_dict, *value;
+    void *prev;
+
+    local_dict = PyThreadState_GetDict();
+    if (local_dict == NULL) {
+        Py_FatalError(
+                "F2PyGetThreadLocalCallbackPtr: PyThreadState_GetDict failed");
+    }
+
+    value = PyDict_GetItemString(local_dict, key); // noqa: borrowed-ref OK
+    if (value != NULL) {
+        prev = PyLong_AsVoidPtr(value);
+        if (PyErr_Occurred()) {
+            Py_FatalError(
+                    "F2PyGetThreadLocalCallbackPtr: PyLong_AsVoidPtr failed");
+        }
+    }
+    else {
+        prev = NULL;
+    }
+
+    return prev;
+}
+
+static PyArray_Descr *
+get_descr_from_type_and_elsize(const int type_num, const int elsize)  {
+  PyArray_Descr * descr = PyArray_DescrFromType(type_num);
+  if (type_num == NPY_STRING) {
+    // PyArray_DescrFromType returns descr with elsize = 0.
+    PyArray_DESCR_REPLACE(descr);
+    if (descr == NULL) {
+      return NULL;
+    }
+    PyDataType_SET_ELSIZE(descr, elsize);
+  }
+  return descr;
+}
+
+/************************* FortranObject *******************************/
+
+typedef PyObject *(*fortranfunc)(PyObject *, PyObject *, PyObject *, void *);
+
+PyObject *
+PyFortranObject_New(FortranDataDef *defs, f2py_void_func init)
+{
+    int i;
+    PyFortranObject *fp = NULL;
+    PyObject *v = NULL;
+    if (init != NULL) { /* Initialize F90 module objects */
+        (*(init))();
+    }
+    fp = PyObject_New(PyFortranObject, &PyFortran_Type);
+    if (fp == NULL) {
+        return NULL;
+    }
+    if ((fp->dict = PyDict_New()) == NULL) {
+        Py_DECREF(fp);
+        return NULL;
+    }
+    fp->len = 0;
+    while (defs[fp->len].name != NULL) {
+        fp->len++;
+    }
+    if (fp->len == 0) {
+        goto fail;
+    }
+    fp->defs = defs;
+    for (i = 0; i < fp->len; i++) {
+        if (fp->defs[i].rank == -1) { /* Is Fortran routine */
+            v = PyFortranObject_NewAsAttr(&(fp->defs[i]));
+            if (v == NULL) {
+                goto fail;
+            }
+            PyDict_SetItemString(fp->dict, fp->defs[i].name, v);
+            Py_XDECREF(v);
+        }
+        else if ((fp->defs[i].data) !=
+                 NULL) { /* Is Fortran variable or array (not allocatable) */
+            PyArray_Descr *
+            descr = get_descr_from_type_and_elsize(fp->defs[i].type,
+                                                   fp->defs[i].elsize);
+            if (descr == NULL) {
+                goto fail;
+            }
+            v = PyArray_NewFromDescr(&PyArray_Type, descr, fp->defs[i].rank,
+                                     fp->defs[i].dims.d, NULL, fp->defs[i].data,
+                                     NPY_ARRAY_FARRAY, NULL);
+            if (v == NULL) {
+                Py_DECREF(descr);
+                goto fail;
+            }
+            PyDict_SetItemString(fp->dict, fp->defs[i].name, v);
+            Py_XDECREF(v);
+        }
+    }
+    return (PyObject *)fp;
+fail:
+    Py_XDECREF(fp);
+    return NULL;
+}
+
+PyObject *
+PyFortranObject_NewAsAttr(FortranDataDef *defs)
+{ /* used for calling F90 module routines */
+    PyFortranObject *fp = NULL;
+    fp = PyObject_New(PyFortranObject, &PyFortran_Type);
+    if (fp == NULL)
+        return NULL;
+    if ((fp->dict = PyDict_New()) == NULL) {
+        PyObject_Del(fp);
+        return NULL;
+    }
+    fp->len = 1;
+    fp->defs = defs;
+    if (defs->rank == -1) {
+      PyDict_SetItemString(fp->dict, "__name__", PyUnicode_FromFormat("function %s", defs->name));
+    } else if (defs->rank == 0) {
+      PyDict_SetItemString(fp->dict, "__name__", PyUnicode_FromFormat("scalar %s", defs->name));
+    } else {
+      PyDict_SetItemString(fp->dict, "__name__", PyUnicode_FromFormat("array %s", defs->name));
+    }
+    return (PyObject *)fp;
+}
+
+/* Fortran methods */
+
+static void
+fortran_dealloc(PyFortranObject *fp)
+{
+    Py_XDECREF(fp->dict);
+    PyObject_Del(fp);
+}
+
+/* Returns number of bytes consumed from buf, or -1 on error. */
+static Py_ssize_t
+format_def(char *buf, Py_ssize_t size, FortranDataDef def)
+{
+    char *p = buf;
+    int i;
+    npy_intp n;
+
+    n = PyOS_snprintf(p, size, "array(%" NPY_INTP_FMT, def.dims.d[0]);
+    if (n < 0 || n >= size) {
+        return -1;
+    }
+    p += n;
+    size -= n;
+
+    for (i = 1; i < def.rank; i++) {
+        n = PyOS_snprintf(p, size, ",%" NPY_INTP_FMT, def.dims.d[i]);
+        if (n < 0 || n >= size) {
+            return -1;
+        }
+        p += n;
+        size -= n;
+    }
+
+    if (size <= 0) {
+        return -1;
+    }
+
+    *p++ = ')';
+    size--;
+
+    if (def.data == NULL) {
+        static const char notalloc[] = ", not allocated";
+        if ((size_t)size < sizeof(notalloc)) {
+            return -1;
+        }
+        memcpy(p, notalloc, sizeof(notalloc));
+        p += sizeof(notalloc);
+        size -= sizeof(notalloc);
+    }
+
+    return p - buf;
+}
+
+static PyObject *
+fortran_doc(FortranDataDef def)
+{
+    char *buf, *p;
+    PyObject *s = NULL;
+    Py_ssize_t n, origsize, size = 100;
+
+    if (def.doc != NULL) {
+        size += strlen(def.doc);
+    }
+    origsize = size;
+    buf = p = (char *)PyMem_Malloc(size);
+    if (buf == NULL) {
+        return PyErr_NoMemory();
+    }
+
+    if (def.rank == -1) {
+        if (def.doc) {
+            n = strlen(def.doc);
+            if (n > size) {
+                goto fail;
+            }
+            memcpy(p, def.doc, n);
+            p += n;
+            size -= n;
+        }
+        else {
+            n = PyOS_snprintf(p, size, "%s - no docs available", def.name);
+            if (n < 0 || n >= size) {
+                goto fail;
+            }
+            p += n;
+            size -= n;
+        }
+    }
+    else {
+        PyArray_Descr *d = PyArray_DescrFromType(def.type);
+        n = PyOS_snprintf(p, size, "%s : '%c'-", def.name, d->type);
+        Py_DECREF(d);
+        if (n < 0 || n >= size) {
+            goto fail;
+        }
+        p += n;
+        size -= n;
+
+        if (def.data == NULL) {
+            n = format_def(p, size, def);
+            if (n < 0) {
+                goto fail;
+            }
+            p += n;
+            size -= n;
+        }
+        else if (def.rank > 0) {
+            n = format_def(p, size, def);
+            if (n < 0) {
+                goto fail;
+            }
+            p += n;
+            size -= n;
+        }
+        else {
+            n = strlen("scalar");
+            if (size < n) {
+                goto fail;
+            }
+            memcpy(p, "scalar", n);
+            p += n;
+            size -= n;
+        }
+    }
+    if (size <= 1) {
+        goto fail;
+    }
+    *p++ = '\n';
+    size--;
+
+    /* p now points one beyond the last character of the string in buf */
+    s = PyUnicode_FromStringAndSize(buf, p - buf);
+
+    PyMem_Free(buf);
+    return s;
+
+fail:
+    fprintf(stderr,
+            "fortranobject.c: fortran_doc: len(p)=%zd>%zd=size:"
+            " too long docstring required, increase size\n",
+            p - buf, origsize);
+    PyMem_Free(buf);
+    return NULL;
+}
+
+static FortranDataDef *save_def; /* save pointer of an allocatable array */
+static void
+set_data(char *d, npy_intp *f)
+{           /* callback from Fortran */
+    if (*f) /* In fortran f=allocated(d) */
+        save_def->data = d;
+    else
+        save_def->data = NULL;
+    /* printf("set_data: d=%p,f=%d\n",d,*f); */
+}
+
+static PyObject *
+fortran_getattr(PyFortranObject *fp, char *name)
+{
+    int i, j, k, flag;
+    if (fp->dict != NULL) {
+        // python 3.13 added PyDict_GetItemRef
+#if PY_VERSION_HEX < 0x030D0000
+        PyObject *v = _PyDict_GetItemStringWithError(fp->dict, name); // noqa: borrowed-ref OK
+        if (v == NULL && PyErr_Occurred()) {
+            return NULL;
+        }
+        else if (v != NULL) {
+            Py_INCREF(v);
+            return v;
+        }
+#else
+        PyObject *v;
+        int result = PyDict_GetItemStringRef(fp->dict, name, &v);
+        if (result == -1) {
+            return NULL;
+        }
+        else if (result == 1) {
+            return v;
+        }
+#endif
+
+    }
+    for (i = 0, j = 1; i < fp->len && (j = strcmp(name, fp->defs[i].name));
+         i++)
+        ;
+    if (j == 0)
+        if (fp->defs[i].rank != -1) { /* F90 allocatable array */
+            if (fp->defs[i].func == NULL)
+                return NULL;
+            for (k = 0; k < fp->defs[i].rank; ++k) fp->defs[i].dims.d[k] = -1;
+            save_def = &fp->defs[i];
+            (*(fp->defs[i].func))(&fp->defs[i].rank, fp->defs[i].dims.d,
+                                  set_data, &flag);
+            if (flag == 2)
+                k = fp->defs[i].rank + 1;
+            else
+                k = fp->defs[i].rank;
+            if (fp->defs[i].data != NULL) { /* array is allocated */
+                PyObject *v = PyArray_New(
+                        &PyArray_Type, k, fp->defs[i].dims.d, fp->defs[i].type,
+                        NULL, fp->defs[i].data, 0, NPY_ARRAY_FARRAY, NULL);
+                if (v == NULL)
+                    return NULL;
+                /* Py_INCREF(v); */
+                return v;
+            }
+            else { /* array is not allocated */
+                Py_RETURN_NONE;
+            }
+        }
+    if (strcmp(name, "__dict__") == 0) {
+        Py_INCREF(fp->dict);
+        return fp->dict;
+    }
+    if (strcmp(name, "__doc__") == 0) {
+        PyObject *s = PyUnicode_FromString(""), *s2, *s3;
+        for (i = 0; i < fp->len; i++) {
+            s2 = fortran_doc(fp->defs[i]);
+            s3 = PyUnicode_Concat(s, s2);
+            Py_DECREF(s2);
+            Py_DECREF(s);
+            s = s3;
+        }
+        if (PyDict_SetItemString(fp->dict, name, s))
+            return NULL;
+        return s;
+    }
+    if ((strcmp(name, "_cpointer") == 0) && (fp->len == 1)) {
+        PyObject *cobj =
+                F2PyCapsule_FromVoidPtr((void *)(fp->defs[0].data), NULL);
+        if (PyDict_SetItemString(fp->dict, name, cobj))
+            return NULL;
+        return cobj;
+    }
+    PyObject *str, *ret;
+    str = PyUnicode_FromString(name);
+    ret = PyObject_GenericGetAttr((PyObject *)fp, str);
+    Py_DECREF(str);
+    return ret;
+}
+
+static int
+fortran_setattr(PyFortranObject *fp, char *name, PyObject *v)
+{
+    int i, j, flag;
+    PyArrayObject *arr = NULL;
+    for (i = 0, j = 1; i < fp->len && (j = strcmp(name, fp->defs[i].name));
+         i++)
+        ;
+    if (j == 0) {
+        if (fp->defs[i].rank == -1) {
+            PyErr_SetString(PyExc_AttributeError,
+                            "over-writing fortran routine");
+            return -1;
+        }
+        if (fp->defs[i].func != NULL) { /* is allocatable array */
+            npy_intp dims[F2PY_MAX_DIMS];
+            int k;
+            save_def = &fp->defs[i];
+            if (v != Py_None) { /* set new value (reallocate if needed --
+                                   see f2py generated code for more
+                                   details ) */
+                for (k = 0; k < fp->defs[i].rank; k++) dims[k] = -1;
+                if ((arr = array_from_pyobj(fp->defs[i].type, dims,
+                                            fp->defs[i].rank, F2PY_INTENT_IN,
+                                            v)) == NULL)
+                    return -1;
+                (*(fp->defs[i].func))(&fp->defs[i].rank, PyArray_DIMS(arr),
+                                      set_data, &flag);
+            }
+            else { /* deallocate */
+                for (k = 0; k < fp->defs[i].rank; k++) dims[k] = 0;
+                (*(fp->defs[i].func))(&fp->defs[i].rank, dims, set_data,
+                                      &flag);
+                for (k = 0; k < fp->defs[i].rank; k++) dims[k] = -1;
+            }
+            memcpy(fp->defs[i].dims.d, dims,
+                   fp->defs[i].rank * sizeof(npy_intp));
+        }
+        else { /* not allocatable array */
+            if ((arr = array_from_pyobj(fp->defs[i].type, fp->defs[i].dims.d,
+                                        fp->defs[i].rank, F2PY_INTENT_IN,
+                                        v)) == NULL)
+                return -1;
+        }
+        if (fp->defs[i].data !=
+            NULL) { /* copy Python object to Fortran array */
+            npy_intp s = PyArray_MultiplyList(fp->defs[i].dims.d,
+                                              PyArray_NDIM(arr));
+            if (s == -1)
+                s = PyArray_MultiplyList(PyArray_DIMS(arr), PyArray_NDIM(arr));
+            if (s < 0 || (memcpy(fp->defs[i].data, PyArray_DATA(arr),
+                                 s * PyArray_ITEMSIZE(arr))) == NULL) {
+                if ((PyObject *)arr != v) {
+                    Py_DECREF(arr);
+                }
+                return -1;
+            }
+            if ((PyObject *)arr != v) {
+                Py_DECREF(arr);
+            }
+        }
+        else
+            return (fp->defs[i].func == NULL ? -1 : 0);
+        return 0; /* successful */
+    }
+    if (fp->dict == NULL) {
+        fp->dict = PyDict_New();
+        if (fp->dict == NULL)
+            return -1;
+    }
+    if (v == NULL) {
+        int rv = PyDict_DelItemString(fp->dict, name);
+        if (rv < 0)
+            PyErr_SetString(PyExc_AttributeError,
+                            "delete non-existing fortran attribute");
+        return rv;
+    }
+    else
+        return PyDict_SetItemString(fp->dict, name, v);
+}
+
+static PyObject *
+fortran_call(PyFortranObject *fp, PyObject *arg, PyObject *kw)
+{
+    int i = 0;
+    /*  printf("fortran call
+        name=%s,func=%p,data=%p,%p\n",fp->defs[i].name,
+        fp->defs[i].func,fp->defs[i].data,&fp->defs[i].data); */
+    if (fp->defs[i].rank == -1) { /* is Fortran routine */
+        if (fp->defs[i].func == NULL) {
+            PyErr_Format(PyExc_RuntimeError, "no function to call");
+            return NULL;
+        }
+        else if (fp->defs[i].data == NULL)
+            /* dummy routine */
+            return (*((fortranfunc)(fp->defs[i].func)))((PyObject *)fp, arg,
+                                                        kw, NULL);
+        else
+            return (*((fortranfunc)(fp->defs[i].func)))(
+                    (PyObject *)fp, arg, kw, (void *)fp->defs[i].data);
+    }
+    PyErr_Format(PyExc_TypeError, "this fortran object is not callable");
+    return NULL;
+}
+
+static PyObject *
+fortran_repr(PyFortranObject *fp)
+{
+    PyObject *name = NULL, *repr = NULL;
+    name = PyObject_GetAttrString((PyObject *)fp, "__name__");
+    PyErr_Clear();
+    if (name != NULL && PyUnicode_Check(name)) {
+        repr = PyUnicode_FromFormat("<fortran %U>", name);
+    }
+    else {
+        repr = PyUnicode_FromString("<fortran object>");
+    }
+    Py_XDECREF(name);
+    return repr;
+}
+
+PyTypeObject PyFortran_Type = {
+        PyVarObject_HEAD_INIT(NULL, 0).tp_name = "fortran",
+        .tp_basicsize = sizeof(PyFortranObject),
+        .tp_dealloc = (destructor)fortran_dealloc,
+        .tp_getattr = (getattrfunc)fortran_getattr,
+        .tp_setattr = (setattrfunc)fortran_setattr,
+        .tp_repr = (reprfunc)fortran_repr,
+        .tp_call = (ternaryfunc)fortran_call,
+};
+
+/************************* f2py_report_atexit *******************************/
+
+#ifdef F2PY_REPORT_ATEXIT
+static int passed_time = 0;
+static int passed_counter = 0;
+static int passed_call_time = 0;
+static struct timeb start_time;
+static struct timeb stop_time;
+static struct timeb start_call_time;
+static struct timeb stop_call_time;
+static int cb_passed_time = 0;
+static int cb_passed_counter = 0;
+static int cb_passed_call_time = 0;
+static struct timeb cb_start_time;
+static struct timeb cb_stop_time;
+static struct timeb cb_start_call_time;
+static struct timeb cb_stop_call_time;
+
+extern void
+f2py_start_clock(void)
+{
+    ftime(&start_time);
+}
+extern void
+f2py_start_call_clock(void)
+{
+    f2py_stop_clock();
+    ftime(&start_call_time);
+}
+extern void
+f2py_stop_clock(void)
+{
+    ftime(&stop_time);
+    passed_time += 1000 * (stop_time.time - start_time.time);
+    passed_time += stop_time.millitm - start_time.millitm;
+}
+extern void
+f2py_stop_call_clock(void)
+{
+    ftime(&stop_call_time);
+    passed_call_time += 1000 * (stop_call_time.time - start_call_time.time);
+    passed_call_time += stop_call_time.millitm - start_call_time.millitm;
+    passed_counter += 1;
+    f2py_start_clock();
+}
+
+extern void
+f2py_cb_start_clock(void)
+{
+    ftime(&cb_start_time);
+}
+extern void
+f2py_cb_start_call_clock(void)
+{
+    f2py_cb_stop_clock();
+    ftime(&cb_start_call_time);
+}
+extern void
+f2py_cb_stop_clock(void)
+{
+    ftime(&cb_stop_time);
+    cb_passed_time += 1000 * (cb_stop_time.time - cb_start_time.time);
+    cb_passed_time += cb_stop_time.millitm - cb_start_time.millitm;
+}
+extern void
+f2py_cb_stop_call_clock(void)
+{
+    ftime(&cb_stop_call_time);
+    cb_passed_call_time +=
+            1000 * (cb_stop_call_time.time - cb_start_call_time.time);
+    cb_passed_call_time +=
+            cb_stop_call_time.millitm - cb_start_call_time.millitm;
+    cb_passed_counter += 1;
+    f2py_cb_start_clock();
+}
+
+static int f2py_report_on_exit_been_here = 0;
+extern void
+f2py_report_on_exit(int exit_flag, void *name)
+{
+    if (f2py_report_on_exit_been_here) {
+        fprintf(stderr, "             %s\n", (char *)name);
+        return;
+    }
+    f2py_report_on_exit_been_here = 1;
+    fprintf(stderr, "                      /-----------------------\\\n");
+    fprintf(stderr, "                     < F2PY performance report >\n");
+    fprintf(stderr, "                      \\-----------------------/\n");
+    fprintf(stderr, "Overall time spent in ...\n");
+    fprintf(stderr, "(a) wrapped (Fortran/C) functions           : %8d msec\n",
+            passed_call_time);
+    fprintf(stderr, "(b) f2py interface,           %6d calls  : %8d msec\n",
+            passed_counter, passed_time);
+    fprintf(stderr, "(c) call-back (Python) functions            : %8d msec\n",
+            cb_passed_call_time);
+    fprintf(stderr, "(d) f2py call-back interface, %6d calls  : %8d msec\n",
+            cb_passed_counter, cb_passed_time);
+
+    fprintf(stderr,
+            "(e) wrapped (Fortran/C) functions (actual) : %8d msec\n\n",
+            passed_call_time - cb_passed_call_time - cb_passed_time);
+    fprintf(stderr,
+            "Use -DF2PY_REPORT_ATEXIT_DISABLE to disable this message.\n");
+    fprintf(stderr, "Exit status: %d\n", exit_flag);
+    fprintf(stderr, "Modules    : %s\n", (char *)name);
+}
+#endif
+
+/********************** report on array copy ****************************/
+
+#ifdef F2PY_REPORT_ON_ARRAY_COPY
+static void
+f2py_report_on_array_copy(PyArrayObject *arr)
+{
+    const npy_intp arr_size = PyArray_Size((PyObject *)arr);
+    if (arr_size > F2PY_REPORT_ON_ARRAY_COPY) {
+        fprintf(stderr,
+                "copied an array: size=%ld, elsize=%" NPY_INTP_FMT "\n",
+                arr_size, (npy_intp)PyArray_ITEMSIZE(arr));
+    }
+}
+static void
+f2py_report_on_array_copy_fromany(void)
+{
+    fprintf(stderr, "created an array from object\n");
+}
+
+#define F2PY_REPORT_ON_ARRAY_COPY_FROMARR \
+    f2py_report_on_array_copy((PyArrayObject *)arr)
+#define F2PY_REPORT_ON_ARRAY_COPY_FROMANY f2py_report_on_array_copy_fromany()
+#else
+#define F2PY_REPORT_ON_ARRAY_COPY_FROMARR
+#define F2PY_REPORT_ON_ARRAY_COPY_FROMANY
+#endif
+
+/************************* array_from_obj *******************************/
+
+/*
+ * File: array_from_pyobj.c
+ *
+ * Description:
+ * ------------
+ * Provides array_from_pyobj function that returns a contiguous array
+ * object with the given dimensions and required storage order, either
+ * in row-major (C) or column-major (Fortran) order. The function
+ * array_from_pyobj is very flexible about its Python object argument
+ * that can be any number, list, tuple, or array.
+ *
+ * array_from_pyobj is used in f2py generated Python extension
+ * modules.
+ *
+ * Author: Pearu Peterson <pearu@cens.ioc.ee>
+ * Created: 13-16 January 2002
+ * $Id: fortranobject.c,v 1.52 2005/07/11 07:44:20 pearu Exp $
+ */
+
+static int check_and_fix_dimensions(const PyArrayObject* arr,
+                                    const int rank,
+                                    npy_intp *dims,
+                                    const char *errmess);
+
+static int
+find_first_negative_dimension(const int rank, const npy_intp *dims)
+{
+    int i;
+    for (i = 0; i < rank; ++i) {
+        if (dims[i] < 0) {
+            return i;
+        }
+    }
+    return -1;
+}
+
+#ifdef DEBUG_COPY_ND_ARRAY
+void
+dump_dims(int rank, npy_intp const *dims)
+{
+    int i;
+    printf("[");
+    for (i = 0; i < rank; ++i) {
+        printf("%3" NPY_INTP_FMT, dims[i]);
+    }
+    printf("]\n");
+}
+void
+dump_attrs(const PyArrayObject *obj)
+{
+    const PyArrayObject_fields *arr = (const PyArrayObject_fields *)obj;
+    int rank = PyArray_NDIM(arr);
+    npy_intp size = PyArray_Size((PyObject *)arr);
+    printf("\trank = %d, flags = %d, size = %" NPY_INTP_FMT "\n", rank,
+           arr->flags, size);
+    printf("\tstrides = ");
+    dump_dims(rank, arr->strides);
+    printf("\tdimensions = ");
+    dump_dims(rank, arr->dimensions);
+}
+#endif
+
+#define SWAPTYPE(a, b, t) \
+    {                     \
+        t c;              \
+        c = (a);          \
+        (a) = (b);        \
+        (b) = c;          \
+    }
+
+static int
+swap_arrays(PyArrayObject *obj1, PyArrayObject *obj2)
+{
+    PyArrayObject_fields *arr1 = (PyArrayObject_fields *)obj1,
+                         *arr2 = (PyArrayObject_fields *)obj2;
+    SWAPTYPE(arr1->data, arr2->data, char *);
+    SWAPTYPE(arr1->nd, arr2->nd, int);
+    SWAPTYPE(arr1->dimensions, arr2->dimensions, npy_intp *);
+    SWAPTYPE(arr1->strides, arr2->strides, npy_intp *);
+    SWAPTYPE(arr1->base, arr2->base, PyObject *);
+    SWAPTYPE(arr1->descr, arr2->descr, PyArray_Descr *);
+    SWAPTYPE(arr1->flags, arr2->flags, int);
+    /* SWAPTYPE(arr1->weakreflist,arr2->weakreflist,PyObject*); */
+    return 0;
+}
+
+#define ARRAY_ISCOMPATIBLE(arr,type_num)                                \
+    ((PyArray_ISINTEGER(arr) && PyTypeNum_ISINTEGER(type_num)) ||     \
+     (PyArray_ISFLOAT(arr) && PyTypeNum_ISFLOAT(type_num)) ||         \
+     (PyArray_ISCOMPLEX(arr) && PyTypeNum_ISCOMPLEX(type_num)) ||     \
+     (PyArray_ISBOOL(arr) && PyTypeNum_ISBOOL(type_num)) ||           \
+     (PyArray_ISSTRING(arr) && PyTypeNum_ISSTRING(type_num)))
+
+static int
+get_elsize(PyObject *obj) {
+  /*
+    get_elsize determines array itemsize from a Python object.  Returns
+    elsize if successful, -1 otherwise.
+
+    Supported types of the input are: numpy.ndarray, bytes, str, tuple,
+    list.
+  */
+
+  if (PyArray_Check(obj)) {
+    return PyArray_ITEMSIZE((PyArrayObject *)obj);
+  } else if (PyBytes_Check(obj)) {
+    return PyBytes_GET_SIZE(obj);
+  } else if (PyUnicode_Check(obj)) {
+    return PyUnicode_GET_LENGTH(obj);
+  } else if (PySequence_Check(obj)) {
+    PyObject* fast = PySequence_Fast(obj, "f2py:fortranobject.c:get_elsize"); // noqa: borrowed-ref OK
+    if (fast != NULL) {
+      Py_ssize_t i, n = PySequence_Fast_GET_SIZE(fast);
+      int sz, elsize = 0;
+      for (i=0; i<n; i++) {
+        sz = get_elsize(PySequence_Fast_GET_ITEM(fast, i) /* borrowed */);
+        if (sz > elsize) {
+          elsize = sz;
+        }
+      }
+      Py_DECREF(fast);
+      return elsize;
+    }
+  }
+  return -1;
+}
+
+extern PyArrayObject *
+ndarray_from_pyobj(const int type_num,
+                   const int elsize_,
+                   npy_intp *dims,
+                   const int rank,
+                   const int intent,
+                   PyObject *obj,
+                   const char *errmess) {
+    /*
+     * Return an array with given element type and shape from a Python
+     * object while taking into account the usage intent of the array.
+     *
+     * - element type is defined by type_num and elsize
+     * - shape is defined by dims and rank
+     *
+     * ndarray_from_pyobj is used to convert Python object arguments
+     * to numpy ndarrays with given type and shape that data is passed
+     * to interfaced Fortran or C functions.
+     *
+     * errmess (if not NULL), contains a prefix of an error message
+     * for an exception to be triggered within this function.
+     *
+     * Negative elsize value means that elsize is to be determined
+     * from the Python object in runtime.
+     *
+     * Note on strings
+     * ---------------
+     *
+     * String type (type_num == NPY_STRING) does not have fixed
+     * element size and, by default, the type object sets it to
+     * 0. Therefore, for string types, one has to use elsize
+     * argument. For other types, elsize value is ignored.
+     *
+     * NumPy defines the type of a fixed-width string as
+     * dtype('S<width>'). In addition, there is also dtype('c'), that
+     * appears as dtype('S1') (these have the same type_num value),
+     * but is actually different (.char attribute is either 'S' or
+     * 'c', respectively).
+     *
+     * In Fortran, character arrays and strings are different
+     * concepts.  The relation between Fortran types, NumPy dtypes,
+     * and type_num-elsize pairs, is defined as follows:
+     *
+     * character*5 foo     | dtype('S5')  | elsize=5, shape=()
+     * character(5) foo    | dtype('S1')  | elsize=1, shape=(5)
+     * character*5 foo(n)  | dtype('S5')  | elsize=5, shape=(n,)
+     * character(5) foo(n) | dtype('S1')  | elsize=1, shape=(5, n)
+     * character*(*) foo   | dtype('S')   | elsize=-1, shape=()
+     *
+     * Note about reference counting
+     * -----------------------------
+     *
+     * If the caller returns the array to Python, it must be done with
+     * Py_BuildValue("N",arr).  Otherwise, if obj!=arr then the caller
+     * must call Py_DECREF(arr).
+     *
+     * Note on intent(cache,out,..)
+     * ----------------------------
+     * Don't expect correct data when returning intent(cache) array.
+     *
+     */
+    char mess[F2PY_MESSAGE_BUFFER_SIZE];
+    PyArrayObject *arr = NULL;
+    int elsize = (elsize_ < 0 ? get_elsize(obj) : elsize_);
+    if (elsize < 0) {
+      if (errmess != NULL) {
+        strcpy(mess, errmess);
+      }
+      sprintf(mess + strlen(mess),
+              " -- failed to determine element size from %s",
+              Py_TYPE(obj)->tp_name);
+      PyErr_SetString(PyExc_SystemError, mess);
+      return NULL;
+    }
+    PyArray_Descr * descr = get_descr_from_type_and_elsize(type_num, elsize);  // new reference
+    if (descr == NULL) {
+      return NULL;
+    }
+    elsize = PyDataType_ELSIZE(descr);
+    if ((intent & F2PY_INTENT_HIDE)
+        || ((intent & F2PY_INTENT_CACHE) && (obj == Py_None))
+        || ((intent & F2PY_OPTIONAL) && (obj == Py_None))
+        ) {
+        /* intent(cache), optional, intent(hide) */
+        int ineg = find_first_negative_dimension(rank, dims);
+        if (ineg >= 0) {
+            int i;
+            strcpy(mess, "failed to create intent(cache|hide)|optional array"
+                   "-- must have defined dimensions but got (");
+            for(i = 0; i < rank; ++i)
+                sprintf(mess + strlen(mess), "%" NPY_INTP_FMT ",", dims[i]);
+            strcat(mess, ")");
+            PyErr_SetString(PyExc_ValueError, mess);
+            Py_DECREF(descr);
+            return NULL;
+        }
+        arr = (PyArrayObject *)                                      \
+          PyArray_NewFromDescr(&PyArray_Type, descr, rank, dims,
+                               NULL, NULL, !(intent & F2PY_INTENT_C), NULL);
+        if (arr == NULL) {
+          Py_DECREF(descr);
+          return NULL;
+        }
+        if (PyArray_ITEMSIZE(arr) != elsize) {
+          strcpy(mess, "failed to create intent(cache|hide)|optional array");
+          sprintf(mess+strlen(mess)," -- expected elsize=%d got %" NPY_INTP_FMT, elsize, (npy_intp)PyArray_ITEMSIZE(arr));
+          PyErr_SetString(PyExc_ValueError,mess);
+          Py_DECREF(arr);
+          return NULL;
+        }
+        if (!(intent & F2PY_INTENT_CACHE)) {
+          PyArray_FILLWBYTE(arr, 0);
+        }
+        return arr;
+    }
+
+    if (PyArray_Check(obj)) {
+        arr = (PyArrayObject *)obj;
+        if (intent & F2PY_INTENT_CACHE) {
+            /* intent(cache) */
+            if (PyArray_ISONESEGMENT(arr)
+                && PyArray_ITEMSIZE(arr) >= elsize) {
+                if (check_and_fix_dimensions(arr, rank, dims, errmess)) {
+                  Py_DECREF(descr);
+                  return NULL;
+                }
+                if (intent & F2PY_INTENT_OUT)
+                  Py_INCREF(arr);
+                Py_DECREF(descr);
+                return arr;
+            }
+            strcpy(mess, "failed to initialize intent(cache) array");
+            if (!PyArray_ISONESEGMENT(arr))
+                strcat(mess, " -- input must be in one segment");
+            if (PyArray_ITEMSIZE(arr) < elsize)
+                sprintf(mess + strlen(mess),
+                        " -- expected at least elsize=%d but got "
+                        "%" NPY_INTP_FMT,
+                        elsize, (npy_intp)PyArray_ITEMSIZE(arr));
+            PyErr_SetString(PyExc_ValueError, mess);
+            Py_DECREF(descr);
+            return NULL;
+        }
+
+        /* here we have always intent(in) or intent(inout) or intent(inplace)
+         */
+
+        if (check_and_fix_dimensions(arr, rank, dims, errmess)) {
+          Py_DECREF(descr);
+          return NULL;
+        }
+        /*
+        printf("intent alignment=%d\n", F2PY_GET_ALIGNMENT(intent));
+        printf("alignment check=%d\n", F2PY_CHECK_ALIGNMENT(arr, intent));
+        int i;
+        for (i=1;i<=16;i++)
+          printf("i=%d isaligned=%d\n", i, ARRAY_ISALIGNED(arr, i));
+        */
+        if ((! (intent & F2PY_INTENT_COPY)) &&
+            PyArray_ITEMSIZE(arr) == elsize &&
+            ARRAY_ISCOMPATIBLE(arr,type_num) &&
+            F2PY_CHECK_ALIGNMENT(arr, intent)) {
+            if ((intent & F2PY_INTENT_INOUT || intent & F2PY_INTENT_INPLACE)
+              ? ((intent & F2PY_INTENT_C) ? PyArray_ISCARRAY(arr) : PyArray_ISFARRAY(arr))
+              : ((intent & F2PY_INTENT_C) ? PyArray_ISCARRAY_RO(arr) : PyArray_ISFARRAY_RO(arr))) {
+                if ((intent & F2PY_INTENT_OUT)) {
+                    Py_INCREF(arr);
+                }
+                /* Returning input array */
+                Py_DECREF(descr);
+                return arr;
+            }
+        }
+        if (intent & F2PY_INTENT_INOUT) {
+            strcpy(mess, "failed to initialize intent(inout) array");
+            /* Must use PyArray_IS*ARRAY because intent(inout) requires
+             * writable input */
+            if ((intent & F2PY_INTENT_C) && !PyArray_ISCARRAY(arr))
+                strcat(mess, " -- input not contiguous");
+            if (!(intent & F2PY_INTENT_C) && !PyArray_ISFARRAY(arr))
+                strcat(mess, " -- input not fortran contiguous");
+            if (PyArray_ITEMSIZE(arr) != elsize)
+                sprintf(mess + strlen(mess),
+                        " -- expected elsize=%d but got %" NPY_INTP_FMT,
+                        elsize,
+                        (npy_intp)PyArray_ITEMSIZE(arr)
+                        );
+            if (!(ARRAY_ISCOMPATIBLE(arr, type_num))) {
+                sprintf(mess + strlen(mess),
+                        " -- input '%c' not compatible to '%c'",
+                        PyArray_DESCR(arr)->type, descr->type);
+            }
+            if (!(F2PY_CHECK_ALIGNMENT(arr, intent)))
+                sprintf(mess + strlen(mess), " -- input not %d-aligned",
+                        F2PY_GET_ALIGNMENT(intent));
+            PyErr_SetString(PyExc_ValueError, mess);
+            Py_DECREF(descr);
+            return NULL;
+        }
+
+        /* here we have always intent(in) or intent(inplace) */
+
+        {
+          PyArrayObject * retarr = (PyArrayObject *)                    \
+            PyArray_NewFromDescr(&PyArray_Type, descr, PyArray_NDIM(arr), PyArray_DIMS(arr),
+                                 NULL, NULL, !(intent & F2PY_INTENT_C), NULL);
+          if (retarr==NULL) {
+            Py_DECREF(descr);
+            return NULL;
+          }
+          F2PY_REPORT_ON_ARRAY_COPY_FROMARR;
+          if (PyArray_CopyInto(retarr, arr)) {
+            Py_DECREF(retarr);
+            return NULL;
+          }
+          if (intent & F2PY_INTENT_INPLACE) {
+            if (swap_arrays(arr,retarr)) {
+              Py_DECREF(retarr);
+              return NULL; /* XXX: set exception */
+            }
+            Py_XDECREF(retarr);
+            if (intent & F2PY_INTENT_OUT)
+              Py_INCREF(arr);
+          } else {
+            arr = retarr;
+          }
+        }
+        return arr;
+    }
+
+    if ((intent & F2PY_INTENT_INOUT) || (intent & F2PY_INTENT_INPLACE) ||
+        (intent & F2PY_INTENT_CACHE)) {
+        PyErr_Format(PyExc_TypeError,
+                     "failed to initialize intent(inout|inplace|cache) "
+                     "array, input '%s' object is not an array",
+                     Py_TYPE(obj)->tp_name);
+        Py_DECREF(descr);
+        return NULL;
+    }
+
+    {
+        F2PY_REPORT_ON_ARRAY_COPY_FROMANY;
+        arr = (PyArrayObject *)PyArray_FromAny(
+                obj, descr, 0, 0,
+                ((intent & F2PY_INTENT_C) ? NPY_ARRAY_CARRAY
+                                          : NPY_ARRAY_FARRAY) |
+                        NPY_ARRAY_FORCECAST,
+                NULL);
+        // Warning: in the case of NPY_STRING, PyArray_FromAny may
+        // reset descr->elsize, e.g. dtype('S0') becomes dtype('S1').
+        if (arr == NULL) {
+          Py_DECREF(descr);
+          return NULL;
+        }
+        if (type_num != NPY_STRING && PyArray_ITEMSIZE(arr) != elsize) {
+          // This is internal sanity tests: elsize has been set to
+          // descr->elsize in the beginning of this function.
+          strcpy(mess, "failed to initialize intent(in) array");
+          sprintf(mess + strlen(mess),
+                  " -- expected elsize=%d got %" NPY_INTP_FMT, elsize,
+                  (npy_intp)PyArray_ITEMSIZE(arr));
+          PyErr_SetString(PyExc_ValueError, mess);
+          Py_DECREF(arr);
+          return NULL;
+        }
+        if (check_and_fix_dimensions(arr, rank, dims, errmess)) {
+          Py_DECREF(arr);
+          return NULL;
+        }
+        return arr;
+    }
+}
+
+extern PyArrayObject *
+array_from_pyobj(const int type_num,
+                                npy_intp *dims,
+                                const int rank,
+                                const int intent,
+                                PyObject *obj) {
+  /*
+    Same as ndarray_from_pyobj but with elsize determined from type,
+    if possible. Provided for backward compatibility.
+   */
+  PyArray_Descr* descr = PyArray_DescrFromType(type_num);
+  int elsize = PyDataType_ELSIZE(descr);
+  Py_DECREF(descr);
+  return ndarray_from_pyobj(type_num, elsize, dims, rank, intent, obj, NULL);
+}
+
+/*****************************************/
+/* Helper functions for array_from_pyobj */
+/*****************************************/
+
+static int
+check_and_fix_dimensions(const PyArrayObject* arr, const int rank,
+                         npy_intp *dims, const char *errmess)
+{
+    /*
+     * This function fills in blanks (that are -1's) in dims list using
+     * the dimensions from arr. It also checks that non-blank dims will
+     * match with the corresponding values in arr dimensions.
+     *
+     * Returns 0 if the function is successful.
+     *
+     * If an error condition is detected, an exception is set and 1 is
+     * returned.
+     */
+    char mess[F2PY_MESSAGE_BUFFER_SIZE];
+    const npy_intp arr_size =
+            (PyArray_NDIM(arr)) ? PyArray_Size((PyObject *)arr) : 1;
+#ifdef DEBUG_COPY_ND_ARRAY
+    dump_attrs(arr);
+    printf("check_and_fix_dimensions:init: dims=");
+    dump_dims(rank, dims);
+#endif
+    if (rank > PyArray_NDIM(arr)) { /* [1,2] -> [[1],[2]]; 1 -> [[1]]  */
+        npy_intp new_size = 1;
+        int free_axe = -1;
+        int i;
+        npy_intp d;
+        /* Fill dims where -1 or 0; check dimensions; calc new_size; */
+        for (i = 0; i < PyArray_NDIM(arr); ++i) {
+            d = PyArray_DIM(arr, i);
+            if (dims[i] >= 0) {
+                if (d > 1 && dims[i] != d) {
+                    PyErr_Format(
+                            PyExc_ValueError,
+                            "%d-th dimension must be fixed to %" NPY_INTP_FMT
+                            " but got %" NPY_INTP_FMT "\n",
+                            i, dims[i], d);
+                    return 1;
+                }
+                if (!dims[i])
+                    dims[i] = 1;
+            }
+            else {
+                dims[i] = d ? d : 1;
+            }
+            new_size *= dims[i];
+        }
+        for (i = PyArray_NDIM(arr); i < rank; ++i)
+            if (dims[i] > 1) {
+                PyErr_Format(PyExc_ValueError,
+                             "%d-th dimension must be %" NPY_INTP_FMT
+                             " but got 0 (not defined).\n",
+                             i, dims[i]);
+                return 1;
+            }
+            else if (free_axe < 0)
+                free_axe = i;
+            else
+                dims[i] = 1;
+        if (free_axe >= 0) {
+            dims[free_axe] = arr_size / new_size;
+            new_size *= dims[free_axe];
+        }
+        if (new_size != arr_size) {
+            PyErr_Format(PyExc_ValueError,
+                         "unexpected array size: new_size=%" NPY_INTP_FMT
+                         ", got array with arr_size=%" NPY_INTP_FMT
+                         " (maybe too many free indices)\n",
+                         new_size, arr_size);
+            return 1;
+        }
+    }
+    else if (rank == PyArray_NDIM(arr)) {
+        npy_intp new_size = 1;
+        int i;
+        npy_intp d;
+        for (i = 0; i < rank; ++i) {
+            d = PyArray_DIM(arr, i);
+            if (dims[i] >= 0) {
+                if (d > 1 && d != dims[i]) {
+                    if (errmess != NULL) {
+                        strcpy(mess, errmess);
+                    }
+                    sprintf(mess + strlen(mess),
+                            " -- %d-th dimension must be fixed to %"
+                            NPY_INTP_FMT " but got %" NPY_INTP_FMT,
+                            i, dims[i], d);
+                    PyErr_SetString(PyExc_ValueError, mess);
+                    return 1;
+                }
+                if (!dims[i])
+                    dims[i] = 1;
+            }
+            else
+                dims[i] = d;
+            new_size *= dims[i];
+        }
+        if (new_size != arr_size) {
+            PyErr_Format(PyExc_ValueError,
+                         "unexpected array size: new_size=%" NPY_INTP_FMT
+                         ", got array with arr_size=%" NPY_INTP_FMT "\n",
+                         new_size, arr_size);
+            return 1;
+        }
+    }
+    else { /* [[1,2]] -> [[1],[2]] */
+        int i, j;
+        npy_intp d;
+        int effrank;
+        npy_intp size;
+        for (i = 0, effrank = 0; i < PyArray_NDIM(arr); ++i)
+            if (PyArray_DIM(arr, i) > 1)
+                ++effrank;
+        if (dims[rank - 1] >= 0)
+            if (effrank > rank) {
+                PyErr_Format(PyExc_ValueError,
+                             "too many axes: %d (effrank=%d), "
+                             "expected rank=%d\n",
+                             PyArray_NDIM(arr), effrank, rank);
+                return 1;
+            }
+
+        for (i = 0, j = 0; i < rank; ++i) {
+            while (j < PyArray_NDIM(arr) && PyArray_DIM(arr, j) < 2) ++j;
+            if (j >= PyArray_NDIM(arr))
+                d = 1;
+            else
+                d = PyArray_DIM(arr, j++);
+            if (dims[i] >= 0) {
+                if (d > 1 && d != dims[i]) {
+                    if (errmess != NULL) {
+                        strcpy(mess, errmess);
+                    }
+                    sprintf(mess + strlen(mess),
+                            " -- %d-th dimension must be fixed to %"
+                            NPY_INTP_FMT " but got %" NPY_INTP_FMT
+                            " (real index=%d)\n",
+                            i, dims[i], d, j-1);
+                    PyErr_SetString(PyExc_ValueError, mess);
+                    return 1;
+                }
+                if (!dims[i])
+                    dims[i] = 1;
+            }
+            else
+                dims[i] = d;
+        }
+
+        for (i = rank; i < PyArray_NDIM(arr);
+             ++i) { /* [[1,2],[3,4]] -> [1,2,3,4] */
+            while (j < PyArray_NDIM(arr) && PyArray_DIM(arr, j) < 2) ++j;
+            if (j >= PyArray_NDIM(arr))
+                d = 1;
+            else
+                d = PyArray_DIM(arr, j++);
+            dims[rank - 1] *= d;
+        }
+        for (i = 0, size = 1; i < rank; ++i) size *= dims[i];
+        if (size != arr_size) {
+            char msg[200];
+            int len;
+            snprintf(msg, sizeof(msg),
+                     "unexpected array size: size=%" NPY_INTP_FMT
+                     ", arr_size=%" NPY_INTP_FMT
+                     ", rank=%d, effrank=%d, arr.nd=%d, dims=[",
+                     size, arr_size, rank, effrank, PyArray_NDIM(arr));
+            for (i = 0; i < rank; ++i) {
+                len = strlen(msg);
+                snprintf(msg + len, sizeof(msg) - len, " %" NPY_INTP_FMT,
+                         dims[i]);
+            }
+            len = strlen(msg);
+            snprintf(msg + len, sizeof(msg) - len, " ], arr.dims=[");
+            for (i = 0; i < PyArray_NDIM(arr); ++i) {
+                len = strlen(msg);
+                snprintf(msg + len, sizeof(msg) - len, " %" NPY_INTP_FMT,
+                         PyArray_DIM(arr, i));
+            }
+            len = strlen(msg);
+            snprintf(msg + len, sizeof(msg) - len, " ]\n");
+            PyErr_SetString(PyExc_ValueError, msg);
+            return 1;
+        }
+    }
+#ifdef DEBUG_COPY_ND_ARRAY
+    printf("check_and_fix_dimensions:end: dims=");
+    dump_dims(rank, dims);
+#endif
+    return 0;
+}
+
+/* End of file: array_from_pyobj.c */
+
+/************************* copy_ND_array *******************************/
+
+extern int
+copy_ND_array(const PyArrayObject *arr, PyArrayObject *out)
+{
+    F2PY_REPORT_ON_ARRAY_COPY_FROMARR;
+    return PyArray_CopyInto(out, (PyArrayObject *)arr);
+}
+
+/********************* Various utility functions ***********************/
+
+extern int
+f2py_describe(PyObject *obj, char *buf) {
+  /*
+    Write the description of a Python object to buf. The caller must
+    provide buffer with size sufficient to write the description.
+
+    Return 1 on success.
+  */
+  char localbuf[F2PY_MESSAGE_BUFFER_SIZE];
+  if (PyBytes_Check(obj)) {
+    sprintf(localbuf, "%d-%s", (npy_int)PyBytes_GET_SIZE(obj), Py_TYPE(obj)->tp_name);
+  } else if (PyUnicode_Check(obj)) {
+    sprintf(localbuf, "%d-%s", (npy_int)PyUnicode_GET_LENGTH(obj), Py_TYPE(obj)->tp_name);
+  } else if (PyArray_CheckScalar(obj)) {
+    PyArrayObject* arr = (PyArrayObject*)obj;
+    sprintf(localbuf, "%c%" NPY_INTP_FMT "-%s-scalar", PyArray_DESCR(arr)->kind, PyArray_ITEMSIZE(arr), Py_TYPE(obj)->tp_name);
+  } else if (PyArray_Check(obj)) {
+    int i;
+    PyArrayObject* arr = (PyArrayObject*)obj;
+    strcpy(localbuf, "(");
+    for (i=0; i<PyArray_NDIM(arr); i++) {
+      if (i) {
+        strcat(localbuf, " ");
+      }
+      sprintf(localbuf + strlen(localbuf), "%" NPY_INTP_FMT ",", PyArray_DIM(arr, i));
+    }
+    sprintf(localbuf + strlen(localbuf), ")-%c%" NPY_INTP_FMT "-%s", PyArray_DESCR(arr)->kind, PyArray_ITEMSIZE(arr), Py_TYPE(obj)->tp_name);
+  } else if (PySequence_Check(obj)) {
+    sprintf(localbuf, "%d-%s", (npy_int)PySequence_Length(obj), Py_TYPE(obj)->tp_name);
+  } else {
+    sprintf(localbuf, "%s instance", Py_TYPE(obj)->tp_name);
+  }
+  // TODO: detect the size of buf and make sure that size(buf) >= size(localbuf).
+  strcpy(buf, localbuf);
+  return 1;
+}
+
+extern npy_intp
+f2py_size_impl(PyArrayObject* var, ...)
+{
+  npy_intp sz = 0;
+  npy_intp dim;
+  npy_intp rank;
+  va_list argp;
+  va_start(argp, var);
+  dim = va_arg(argp, npy_int);
+  if (dim==-1)
+    {
+      sz = PyArray_SIZE(var);
+    }
+  else
+    {
+      rank = PyArray_NDIM(var);
+      if (dim>=1 && dim<=rank)
+        sz = PyArray_DIM(var, dim-1);
+      else
+        fprintf(stderr, "f2py_size: 2nd argument value=%" NPY_INTP_FMT
+                " fails to satisfy 1<=value<=%" NPY_INTP_FMT
+                ". Result will be 0.\n", dim, rank);
+    }
+  va_end(argp);
+  return sz;
+}
+
+/*********************************************/
+/* Compatibility functions for Python >= 3.0 */
+/*********************************************/
+
+PyObject *
+F2PyCapsule_FromVoidPtr(void *ptr, void (*dtor)(PyObject *))
+{
+    PyObject *ret = PyCapsule_New(ptr, NULL, dtor);
+    if (ret == NULL) {
+        PyErr_Clear();
+    }
+    return ret;
+}
+
+void *
+F2PyCapsule_AsVoidPtr(PyObject *obj)
+{
+    void *ret = PyCapsule_GetPointer(obj, NULL);
+    if (ret == NULL) {
+        PyErr_Clear();
+    }
+    return ret;
+}
+
+int
+F2PyCapsule_Check(PyObject *ptr)
+{
+    return PyCapsule_CheckExact(ptr);
+}
+
+#ifdef __cplusplus
+}
+#endif
+/************************* EOF fortranobject.c *******************************/
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/src/fortranobject.h b/python/user_packages/Python313/site-packages/numpy/f2py/src/fortranobject.h
new file mode 100644
index 0000000000000000000000000000000000000000..31d63588efd0c90d696c4ffebbaf836c9cc87700
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/src/fortranobject.h
@@ -0,0 +1,173 @@
+#ifndef Py_FORTRANOBJECT_H
+#define Py_FORTRANOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <Python.h>
+
+#ifndef NPY_NO_DEPRECATED_API
+#define NPY_NO_DEPRECATED_API NPY_API_VERSION
+#endif
+#ifdef FORTRANOBJECT_C
+#define NO_IMPORT_ARRAY
+#endif
+#define PY_ARRAY_UNIQUE_SYMBOL _npy_f2py_ARRAY_API
+#include "numpy/arrayobject.h"
+#include "numpy/npy_3kcompat.h"
+
+#ifdef F2PY_REPORT_ATEXIT
+#include <sys/timeb.h>
+// clang-format off
+extern void f2py_start_clock(void);
+extern void f2py_stop_clock(void);
+extern void f2py_start_call_clock(void);
+extern void f2py_stop_call_clock(void);
+extern void f2py_cb_start_clock(void);
+extern void f2py_cb_stop_clock(void);
+extern void f2py_cb_start_call_clock(void);
+extern void f2py_cb_stop_call_clock(void);
+extern void f2py_report_on_exit(int, void *);
+// clang-format on
+#endif
+
+#ifdef DMALLOC
+#include "dmalloc.h"
+#endif
+
+/* Fortran object interface */
+
+/*
+123456789-123456789-123456789-123456789-123456789-123456789-123456789-12
+
+PyFortranObject represents various Fortran objects:
+Fortran (module) routines, COMMON blocks, module data.
+
+Author: Pearu Peterson <pearu@cens.ioc.ee>
+*/
+
+#define F2PY_MAX_DIMS 40
+#define F2PY_MESSAGE_BUFFER_SIZE 300  // Increase on "stack smashing detected"
+
+typedef void (*f2py_set_data_func)(char *, npy_intp *);
+typedef void (*f2py_void_func)(void);
+typedef void (*f2py_init_func)(int *, npy_intp *, f2py_set_data_func, int *);
+
+/*typedef void* (*f2py_c_func)(void*,...);*/
+
+typedef void *(*f2pycfunc)(void);
+
+typedef struct {
+    char *name; /* attribute (array||routine) name */
+    int rank;   /* array rank, 0 for scalar, max is F2PY_MAX_DIMS,
+                   || rank=-1 for Fortran routine */
+    struct {
+        npy_intp d[F2PY_MAX_DIMS];
+    } dims;              /* dimensions of the array, || not used */
+    int type;            /* PyArray_<type> || not used */
+    int elsize;                /* Element size || not used */
+    char *data;          /* pointer to array || Fortran routine */
+    f2py_init_func func; /* initialization function for
+                            allocatable arrays:
+                            func(&rank,dims,set_ptr_func,name,len(name))
+                            || C/API wrapper for Fortran routine */
+    char *doc;           /* documentation string; only recommended
+                            for routines. */
+} FortranDataDef;
+
+typedef struct {
+    PyObject_HEAD
+    int len;              /* Number of attributes */
+    FortranDataDef *defs; /* An array of FortranDataDef's */
+    PyObject *dict;       /* Fortran object attribute dictionary */
+} PyFortranObject;
+
+#define PyFortran_Check(op) (Py_TYPE(op) == &PyFortran_Type)
+#define PyFortran_Check1(op) (0 == strcmp(Py_TYPE(op)->tp_name, "fortran"))
+
+extern PyTypeObject PyFortran_Type;
+extern int
+F2PyDict_SetItemString(PyObject *dict, char *name, PyObject *obj);
+extern PyObject *
+PyFortranObject_New(FortranDataDef *defs, f2py_void_func init);
+extern PyObject *
+PyFortranObject_NewAsAttr(FortranDataDef *defs);
+
+PyObject *
+F2PyCapsule_FromVoidPtr(void *ptr, void (*dtor)(PyObject *));
+void *
+F2PyCapsule_AsVoidPtr(PyObject *obj);
+int
+F2PyCapsule_Check(PyObject *ptr);
+
+extern void *
+F2PySwapThreadLocalCallbackPtr(char *key, void *ptr);
+extern void *
+F2PyGetThreadLocalCallbackPtr(char *key);
+
+#define ISCONTIGUOUS(m) (PyArray_FLAGS(m) & NPY_ARRAY_C_CONTIGUOUS)
+#define F2PY_INTENT_IN 1
+#define F2PY_INTENT_INOUT 2
+#define F2PY_INTENT_OUT 4
+#define F2PY_INTENT_HIDE 8
+#define F2PY_INTENT_CACHE 16
+#define F2PY_INTENT_COPY 32
+#define F2PY_INTENT_C 64
+#define F2PY_OPTIONAL 128
+#define F2PY_INTENT_INPLACE 256
+#define F2PY_INTENT_ALIGNED4 512
+#define F2PY_INTENT_ALIGNED8 1024
+#define F2PY_INTENT_ALIGNED16 2048
+
+#define ARRAY_ISALIGNED(ARR, SIZE) ((size_t)(PyArray_DATA(ARR)) % (SIZE) == 0)
+#define F2PY_ALIGN4(intent) (intent & F2PY_INTENT_ALIGNED4)
+#define F2PY_ALIGN8(intent) (intent & F2PY_INTENT_ALIGNED8)
+#define F2PY_ALIGN16(intent) (intent & F2PY_INTENT_ALIGNED16)
+
+#define F2PY_GET_ALIGNMENT(intent) \
+    (F2PY_ALIGN4(intent)           \
+             ? 4                   \
+             : (F2PY_ALIGN8(intent) ? 8 : (F2PY_ALIGN16(intent) ? 16 : 1)))
+#define F2PY_CHECK_ALIGNMENT(arr, intent) \
+    ARRAY_ISALIGNED(arr, F2PY_GET_ALIGNMENT(intent))
+#define F2PY_ARRAY_IS_CHARACTER_COMPATIBLE(arr) ((PyArray_DESCR(arr)->type_num == NPY_STRING && PyArray_ITEMSIZE(arr) >= 1) \
+                                                 || PyArray_DESCR(arr)->type_num == NPY_UINT8)
+#define F2PY_IS_UNICODE_ARRAY(arr) (PyArray_DESCR(arr)->type_num == NPY_UNICODE)
+
+extern PyArrayObject *
+ndarray_from_pyobj(const int type_num, const int elsize_, npy_intp *dims,
+                   const int rank, const int intent, PyObject *obj,
+                   const char *errmess);
+
+extern PyArrayObject *
+array_from_pyobj(const int type_num, npy_intp *dims, const int rank,
+                 const int intent, PyObject *obj);
+extern int
+copy_ND_array(const PyArrayObject *in, PyArrayObject *out);
+
+#ifdef DEBUG_COPY_ND_ARRAY
+extern void
+dump_attrs(const PyArrayObject *arr);
+#endif
+
+  extern int f2py_describe(PyObject *obj, char *buf);
+
+  /* Utility CPP macros and functions that can be used in signature file
+     expressions. See signature-file.rst for documentation.
+  */
+
+#define f2py_itemsize(var) (PyArray_ITEMSIZE(capi_ ## var ## _as_array))
+#define f2py_size(var, ...) f2py_size_impl((PyArrayObject *)(capi_ ## var ## _as_array), ## __VA_ARGS__, -1)
+#define f2py_rank(var) var ## _Rank
+#define f2py_shape(var,dim) var ## _Dims[dim]
+#define f2py_len(var) f2py_shape(var,0)
+#define f2py_fshape(var,dim) f2py_shape(var,rank(var)-dim-1)
+#define f2py_flen(var) f2py_fshape(var,0)
+#define f2py_slen(var) capi_ ## var ## _len
+
+  extern npy_intp f2py_size_impl(PyArrayObject* var, ...);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_FORTRANOBJECT_H */
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/__init__.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..3b885254b8e85f50489a3d348135482ee5f6fbc8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/__init__.py
@@ -0,0 +1,16 @@
+import pytest
+
+from numpy.testing import IS_EDITABLE, IS_WASM
+
+if IS_WASM:
+    pytest.skip(
+        "WASM/Pyodide does not use or support Fortran",
+        allow_module_level=True
+    )
+
+
+if IS_EDITABLE:
+    pytest.skip(
+        "Editable install doesn't support tests with a compile step",
+        allow_module_level=True
+    )
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diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/abstract_interface/foo.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/abstract_interface/foo.f90
new file mode 100644
index 0000000000000000000000000000000000000000..af0ae295a2da50917e3b0ee8e86577b2a6d09139
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/abstract_interface/foo.f90
@@ -0,0 +1,34 @@
+module ops_module
+
+  abstract interface
+    subroutine op(x, y, z)
+      integer, intent(in) :: x, y
+      integer, intent(out) :: z
+    end subroutine
+  end interface
+
+contains
+
+  subroutine foo(x, y, r1, r2)
+    integer, intent(in) :: x, y
+    integer, intent(out) :: r1, r2
+    procedure (op) add1, add2
+    procedure (op), pointer::p
+    p=>add1
+    call p(x, y, r1)
+    p=>add2
+    call p(x, y, r2)
+  end subroutine
+end module
+
+subroutine add1(x, y, z)
+  integer, intent(in) :: x, y
+  integer, intent(out) :: z
+  z = x + y
+end subroutine
+
+subroutine add2(x, y, z)
+  integer, intent(in) :: x, y
+  integer, intent(out) :: z
+  z = x + 2 * y
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/abstract_interface/gh18403_mod.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/abstract_interface/gh18403_mod.f90
new file mode 100644
index 0000000000000000000000000000000000000000..b37c941e9a29304bd4f5174b18721bff8c137ae3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/abstract_interface/gh18403_mod.f90
@@ -0,0 +1,6 @@
+module test
+  abstract interface
+    subroutine foo()
+    end subroutine
+  end interface
+end module test
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/array_from_pyobj/wrapmodule.c b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/array_from_pyobj/wrapmodule.c
new file mode 100644
index 0000000000000000000000000000000000000000..49e61f7d230eefd41fe78a9d00d5c57619d28124
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/array_from_pyobj/wrapmodule.c
@@ -0,0 +1,235 @@
+/*
+ * This file was auto-generated with f2py (version:2_1330) and hand edited by
+ * Pearu for testing purposes.  Do not edit this file unless you know what you
+ * are doing!!!
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************** See f2py2e/cfuncs.py: includes ***********************/
+
+#define PY_SSIZE_T_CLEAN
+#include <Python.h>
+#include "fortranobject.h"
+#include <math.h>
+
+static PyObject *wrap_error;
+static PyObject *wrap_module;
+
+/************************************ call ************************************/
+static char doc_f2py_rout_wrap_call[] = "\
+Function signature:\n\
+  arr = call(type_num,dims,intent,obj)\n\
+Required arguments:\n"
+"  type_num : input int\n"
+"  dims : input int-sequence\n"
+"  intent : input int\n"
+"  obj : input python object\n"
+"Return objects:\n"
+"  arr : array";
+static PyObject *f2py_rout_wrap_call(PyObject *capi_self,
+                                     PyObject *capi_args) {
+  PyObject * volatile capi_buildvalue = NULL;
+  int type_num = 0;
+  int elsize = 0;
+  npy_intp *dims = NULL;
+  PyObject *dims_capi = Py_None;
+  int rank = 0;
+  int intent = 0;
+  PyArrayObject *capi_arr_tmp = NULL;
+  PyObject *arr_capi = Py_None;
+  int i;
+
+  if (!PyArg_ParseTuple(capi_args,"iiOiO|:wrap.call",\
+                        &type_num,&elsize,&dims_capi,&intent,&arr_capi))
+    return NULL;
+  rank = PySequence_Length(dims_capi);
+  dims = malloc(rank*sizeof(npy_intp));
+  for (i=0;i<rank;++i) {
+    PyObject *tmp;
+    tmp = PySequence_GetItem(dims_capi, i);
+    if (tmp == NULL) {
+        goto fail;
+    }
+    dims[i] = (npy_intp)PyLong_AsLong(tmp);
+    Py_DECREF(tmp);
+    if (dims[i] == -1 && PyErr_Occurred()) {
+        goto fail;
+    }
+  }
+  capi_arr_tmp = ndarray_from_pyobj(type_num,elsize,dims,rank,intent|F2PY_INTENT_OUT,arr_capi,"wrap.call failed");
+  if (capi_arr_tmp == NULL) {
+    free(dims);
+    return NULL;
+  }
+  capi_buildvalue = Py_BuildValue("N",capi_arr_tmp);
+  free(dims);
+  return capi_buildvalue;
+
+fail:
+  free(dims);
+  return NULL;
+}
+
+static char doc_f2py_rout_wrap_attrs[] = "\
+Function signature:\n\
+  arr = array_attrs(arr)\n\
+Required arguments:\n"
+"  arr : input array object\n"
+"Return objects:\n"
+"  data : data address in hex\n"
+"  nd : int\n"
+"  dimensions : tuple\n"
+"  strides : tuple\n"
+"  base : python object\n"
+"  (kind,type,type_num,elsize,alignment) : 4-tuple\n"
+"  flags : int\n"
+"  itemsize : int\n"
+;
+static PyObject *f2py_rout_wrap_attrs(PyObject *capi_self,
+                                      PyObject *capi_args) {
+  PyObject *arr_capi = Py_None;
+  PyArrayObject *arr = NULL;
+  PyObject *dimensions = NULL;
+  PyObject *strides = NULL;
+  char s[100];
+  int i;
+  memset(s,0,100);
+  if (!PyArg_ParseTuple(capi_args,"O!|:wrap.attrs",
+                        &PyArray_Type,&arr_capi))
+    return NULL;
+  arr = (PyArrayObject *)arr_capi;
+  sprintf(s,"%p",PyArray_DATA(arr));
+  dimensions = PyTuple_New(PyArray_NDIM(arr));
+  strides = PyTuple_New(PyArray_NDIM(arr));
+  for (i=0;i<PyArray_NDIM(arr);++i) {
+    PyTuple_SetItem(dimensions,i,PyLong_FromLong(PyArray_DIM(arr,i)));
+    PyTuple_SetItem(strides,i,PyLong_FromLong(PyArray_STRIDE(arr,i)));
+  }
+  return Py_BuildValue("siNNO(cciii)ii",s,PyArray_NDIM(arr),
+                       dimensions,strides,
+                       (PyArray_BASE(arr)==NULL?Py_None:PyArray_BASE(arr)),
+                       PyArray_DESCR(arr)->kind,
+                       PyArray_DESCR(arr)->type,
+                       PyArray_TYPE(arr),
+                       PyArray_ITEMSIZE(arr),
+                       PyDataType_ALIGNMENT(PyArray_DESCR(arr)),
+                       PyArray_FLAGS(arr),
+                       PyArray_ITEMSIZE(arr));
+}
+
+static PyMethodDef f2py_module_methods[] = {
+
+  {"call",f2py_rout_wrap_call,METH_VARARGS,doc_f2py_rout_wrap_call},
+  {"array_attrs",f2py_rout_wrap_attrs,METH_VARARGS,doc_f2py_rout_wrap_attrs},
+  {NULL,NULL}
+};
+
+static struct PyModuleDef moduledef = {
+    PyModuleDef_HEAD_INIT,
+    "test_array_from_pyobj_ext",
+    NULL,
+    -1,
+    f2py_module_methods,
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
+PyMODINIT_FUNC PyInit_test_array_from_pyobj_ext(void) {
+  PyObject *m,*d, *s;
+  m = wrap_module = PyModule_Create(&moduledef);
+  Py_SET_TYPE(&PyFortran_Type, &PyType_Type);
+  import_array();
+  if (PyErr_Occurred())
+    Py_FatalError("can't initialize module wrap (failed to import numpy)");
+  d = PyModule_GetDict(m);
+  s = PyUnicode_FromString("This module 'wrap' is auto-generated with f2py (version:2_1330).\nFunctions:\n"
+                           "  arr = call(type_num,dims,intent,obj)\n"
+                           ".");
+  PyDict_SetItemString(d, "__doc__", s);
+  wrap_error = PyErr_NewException ("wrap.error", NULL, NULL);
+  Py_DECREF(s);
+
+#define ADDCONST(NAME, CONST)              \
+    s = PyLong_FromLong(CONST);             \
+    PyDict_SetItemString(d, NAME, s);      \
+    Py_DECREF(s)
+
+  ADDCONST("F2PY_INTENT_IN", F2PY_INTENT_IN);
+  ADDCONST("F2PY_INTENT_INOUT", F2PY_INTENT_INOUT);
+  ADDCONST("F2PY_INTENT_OUT", F2PY_INTENT_OUT);
+  ADDCONST("F2PY_INTENT_HIDE", F2PY_INTENT_HIDE);
+  ADDCONST("F2PY_INTENT_CACHE", F2PY_INTENT_CACHE);
+  ADDCONST("F2PY_INTENT_COPY", F2PY_INTENT_COPY);
+  ADDCONST("F2PY_INTENT_C", F2PY_INTENT_C);
+  ADDCONST("F2PY_OPTIONAL", F2PY_OPTIONAL);
+  ADDCONST("F2PY_INTENT_INPLACE", F2PY_INTENT_INPLACE);
+  ADDCONST("NPY_BOOL", NPY_BOOL);
+  ADDCONST("NPY_BYTE", NPY_BYTE);
+  ADDCONST("NPY_UBYTE", NPY_UBYTE);
+  ADDCONST("NPY_SHORT", NPY_SHORT);
+  ADDCONST("NPY_USHORT", NPY_USHORT);
+  ADDCONST("NPY_INT", NPY_INT);
+  ADDCONST("NPY_UINT", NPY_UINT);
+  ADDCONST("NPY_INTP", NPY_INTP);
+  ADDCONST("NPY_UINTP", NPY_UINTP);
+  ADDCONST("NPY_LONG", NPY_LONG);
+  ADDCONST("NPY_ULONG", NPY_ULONG);
+  ADDCONST("NPY_LONGLONG", NPY_LONGLONG);
+  ADDCONST("NPY_ULONGLONG", NPY_ULONGLONG);
+  ADDCONST("NPY_FLOAT", NPY_FLOAT);
+  ADDCONST("NPY_DOUBLE", NPY_DOUBLE);
+  ADDCONST("NPY_LONGDOUBLE", NPY_LONGDOUBLE);
+  ADDCONST("NPY_CFLOAT", NPY_CFLOAT);
+  ADDCONST("NPY_CDOUBLE", NPY_CDOUBLE);
+  ADDCONST("NPY_CLONGDOUBLE", NPY_CLONGDOUBLE);
+  ADDCONST("NPY_OBJECT", NPY_OBJECT);
+  ADDCONST("NPY_STRING", NPY_STRING);
+  ADDCONST("NPY_UNICODE", NPY_UNICODE);
+  ADDCONST("NPY_VOID", NPY_VOID);
+  ADDCONST("NPY_NTYPES_LEGACY", NPY_NTYPES_LEGACY);
+  ADDCONST("NPY_NOTYPE", NPY_NOTYPE);
+  ADDCONST("NPY_USERDEF", NPY_USERDEF);
+
+  ADDCONST("CONTIGUOUS", NPY_ARRAY_C_CONTIGUOUS);
+  ADDCONST("FORTRAN", NPY_ARRAY_F_CONTIGUOUS);
+  ADDCONST("OWNDATA", NPY_ARRAY_OWNDATA);
+  ADDCONST("FORCECAST", NPY_ARRAY_FORCECAST);
+  ADDCONST("ENSURECOPY", NPY_ARRAY_ENSURECOPY);
+  ADDCONST("ENSUREARRAY", NPY_ARRAY_ENSUREARRAY);
+  ADDCONST("ALIGNED", NPY_ARRAY_ALIGNED);
+  ADDCONST("WRITEABLE", NPY_ARRAY_WRITEABLE);
+  ADDCONST("WRITEBACKIFCOPY", NPY_ARRAY_WRITEBACKIFCOPY);
+
+  ADDCONST("BEHAVED", NPY_ARRAY_BEHAVED);
+  ADDCONST("BEHAVED_NS", NPY_ARRAY_BEHAVED_NS);
+  ADDCONST("CARRAY", NPY_ARRAY_CARRAY);
+  ADDCONST("FARRAY", NPY_ARRAY_FARRAY);
+  ADDCONST("CARRAY_RO", NPY_ARRAY_CARRAY_RO);
+  ADDCONST("FARRAY_RO", NPY_ARRAY_FARRAY_RO);
+  ADDCONST("DEFAULT", NPY_ARRAY_DEFAULT);
+  ADDCONST("UPDATE_ALL", NPY_ARRAY_UPDATE_ALL);
+
+#undef ADDCONST
+
+  if (PyErr_Occurred())
+    Py_FatalError("can't initialize module wrap");
+
+#ifdef F2PY_REPORT_ATEXIT
+  on_exit(f2py_report_on_exit,(void*)"array_from_pyobj.wrap.call");
+#endif
+
+#ifdef Py_GIL_DISABLED
+    // signal whether this module supports running with the GIL disabled
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
+  return m;
+}
+#ifdef __cplusplus
+}
+#endif
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/.f2py_f2cmap b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/.f2py_f2cmap
new file mode 100644
index 0000000000000000000000000000000000000000..273c177824c9ca8fea68791e4ba44c5058a79f6d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/.f2py_f2cmap
@@ -0,0 +1 @@
+dict(real=dict(rk="double"))
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_free.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_free.f90
new file mode 100644
index 0000000000000000000000000000000000000000..bb7822023363bab9bfcf4d5b29eec5f231e523b9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_free.f90
@@ -0,0 +1,34 @@
+
+subroutine sum(x, res)
+  implicit none
+  real, intent(in) :: x(:)
+  real, intent(out) :: res
+
+  integer :: i
+
+  !print *, "sum: size(x) = ", size(x)
+
+  res = 0.0
+
+  do i = 1, size(x)
+    res = res + x(i)
+  enddo
+
+end subroutine sum
+
+function fsum(x) result (res)
+  implicit none
+  real, intent(in) :: x(:)
+  real :: res
+
+  integer :: i
+
+  !print *, "fsum: size(x) = ", size(x)
+
+  res = 0.0
+
+  do i = 1, size(x)
+    res = res + x(i)
+  enddo
+
+end function fsum
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_mod.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_mod.f90
new file mode 100644
index 0000000000000000000000000000000000000000..d6da9f4b8bed19b3c84538ae0bdf232e66498fb7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_mod.f90
@@ -0,0 +1,41 @@
+
+module mod
+
+contains
+
+subroutine sum(x, res)
+  implicit none
+  real, intent(in) :: x(:)
+  real, intent(out) :: res
+
+  integer :: i
+
+  !print *, "sum: size(x) = ", size(x)
+
+  res = 0.0
+
+  do i = 1, size(x)
+    res = res + x(i)
+  enddo
+
+end subroutine sum
+
+function fsum(x) result (res)
+  implicit none
+  real, intent(in) :: x(:)
+  real :: res
+
+  integer :: i
+
+  !print *, "fsum: size(x) = ", size(x)
+
+  res = 0.0
+
+  do i = 1, size(x)
+    res = res + x(i)
+  enddo
+
+end function fsum
+
+
+end module mod
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_use.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_use.f90
new file mode 100644
index 0000000000000000000000000000000000000000..992147c7bb23ed65bf1a43b431e863abafc4cbd6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/foo_use.f90
@@ -0,0 +1,19 @@
+subroutine sum_with_use(x, res)
+  use precision
+
+  implicit none
+
+  real(kind=rk), intent(in) :: x(:)
+  real(kind=rk), intent(out) :: res
+
+  integer :: i
+
+  !print *, "size(x) = ", size(x)
+
+  res = 0.0
+
+  do i = 1, size(x)
+    res = res + x(i)
+  enddo
+
+ end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/precision.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/precision.f90
new file mode 100644
index 0000000000000000000000000000000000000000..8072a240ab4e1cccef43b060e13738eb45a5563d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/assumed_shape/precision.f90
@@ -0,0 +1,4 @@
+module precision
+  integer, parameter :: rk = selected_real_kind(8)
+  integer, parameter :: ik = selected_real_kind(4)
+end module
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/block_docstring/foo.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/block_docstring/foo.f
new file mode 100644
index 0000000000000000000000000000000000000000..aecd66e8e20a5d3cee1765d4d42123697f554fd4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/block_docstring/foo.f
@@ -0,0 +1,6 @@
+      SUBROUTINE FOO()
+      INTEGER BAR(2, 3)
+
+      COMMON  /BLOCK/ BAR
+      RETURN
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/foo.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/foo.f
new file mode 100644
index 0000000000000000000000000000000000000000..1ecd6d476577a7369c08d2b4bb7e7efb0383d24a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/foo.f
@@ -0,0 +1,62 @@
+       subroutine t(fun,a)
+       integer a
+cf2py  intent(out) a
+       external fun
+       call fun(a)
+       end
+
+       subroutine func(a)
+cf2py  intent(in,out) a
+       integer a
+       a = a + 11
+       end
+
+       subroutine func0(a)
+cf2py  intent(out) a
+       integer a
+       a = 11
+       end
+
+       subroutine t2(a)
+cf2py  intent(callback) fun
+       integer a
+cf2py  intent(out) a
+       external fun
+       call fun(a)
+       end
+
+       subroutine string_callback(callback, a)
+       external callback
+       double precision callback
+       double precision a
+       character*1 r
+cf2py  intent(out) a
+       r = 'r'
+       a = callback(r)
+       end
+
+       subroutine string_callback_array(callback, cu, lencu, a)
+       external callback
+       integer callback
+       integer lencu
+       character*8 cu(lencu)
+       integer a
+cf2py  intent(out) a
+
+       a = callback(cu, lencu)
+       end
+
+       subroutine hidden_callback(a, r)
+       external global_f
+cf2py  intent(callback, hide) global_f
+       integer a, r, global_f
+cf2py  intent(out) r
+       r = global_f(a)
+       end
+
+       subroutine hidden_callback2(a, r)
+       external global_f
+       integer a, r, global_f
+cf2py  intent(out) r
+       r = global_f(a)
+       end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh17797.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh17797.f90
new file mode 100644
index 0000000000000000000000000000000000000000..0c1d503eddf352ea9ab471fd437859d2ded6f708
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh17797.f90
@@ -0,0 +1,7 @@
+function gh17797(f, y) result(r)
+  external f
+  integer(8) :: r, f
+  integer(8), dimension(:) :: y
+  r = f(0)
+  r = r + sum(y)
+end function gh17797
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh18335.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh18335.f90
new file mode 100644
index 0000000000000000000000000000000000000000..e758b0d9d15a53c1be633484365bcd1f6b0f798d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh18335.f90
@@ -0,0 +1,17 @@
+        ! When gh18335_workaround is defined as an extension,
+        ! the issue cannot be reproduced.
+        !subroutine gh18335_workaround(f, y)
+        !  implicit none
+        !  external f
+        !  integer(kind=1) :: y(1)
+        !  call f(y)
+        !end subroutine gh18335_workaround
+
+        function gh18335(f) result (r)
+          implicit none
+          external f
+          integer(kind=1) :: y(1), r
+          y(1) = 123
+          call f(y)
+          r = y(1)
+        end function gh18335
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh25211.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh25211.f
new file mode 100644
index 0000000000000000000000000000000000000000..08d85c7daf850621b7ee680efa2035d438dea05e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh25211.f
@@ -0,0 +1,10 @@
+      SUBROUTINE FOO(FUN,R)
+      EXTERNAL FUN
+      INTEGER I
+      REAL*8 R, FUN
+Cf2py intent(out) r
+      R = 0D0
+      DO I=-5,5
+         R = R + FUN(I)
+      ENDDO
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh25211.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh25211.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..dd221f970dee978499d8b728f89e0bc1b896c3d3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh25211.pyf
@@ -0,0 +1,18 @@
+python module __user__routines
+    interface
+        function fun(i) result (r)
+            integer :: i
+            real*8 :: r
+        end function fun
+    end interface
+end python module __user__routines
+
+python module callback2
+    interface
+        subroutine foo(f,r)
+            use __user__routines, f=>fun
+            external f
+            real*8 intent(out) :: r
+        end subroutine foo
+    end interface
+end python module callback2
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh26681.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh26681.f90
new file mode 100644
index 0000000000000000000000000000000000000000..a8ce38e70bbafcbbe1ae4a49c19b1694a0e55014
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/callback/gh26681.f90
@@ -0,0 +1,18 @@
+module utils
+    implicit none
+  contains
+    subroutine my_abort(message)
+      implicit none
+      character(len=*), intent(in) :: message
+      !f2py callstatement PyErr_SetString(PyExc_ValueError, message);f2py_success = 0;
+      !f2py callprotoargument char*
+      write(0,*) "THIS SHOULD NOT APPEAR"
+      stop 1
+    end subroutine my_abort
+
+    subroutine do_something(message)
+        !f2py    intent(callback, hide) mypy_abort
+        character(len=*), intent(in) :: message
+        call mypy_abort(message)
+    end subroutine do_something
+end module utils
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/gh_22819.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/gh_22819.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..b79e727e2b9f472b354e4d409a877a7a42d4ec0a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/gh_22819.pyf
@@ -0,0 +1,6 @@
+python module test_22819
+    interface
+        subroutine hello()
+        end subroutine hello
+    end interface
+end python module test_22819
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/hi77.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/hi77.f
new file mode 100644
index 0000000000000000000000000000000000000000..efdf1de677719c81bf19c01c8adb3b53841cf400
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/hi77.f
@@ -0,0 +1,3 @@
+      SUBROUTINE HI
+        PRINT*, "HELLO WORLD"
+      END SUBROUTINE
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/hiworld.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/hiworld.f90
new file mode 100644
index 0000000000000000000000000000000000000000..8f390ee3a29bc460c36edafd3ea27e9df6bb08bf
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/cli/hiworld.f90
@@ -0,0 +1,3 @@
+function hi()
+  print*, "Hello World"
+end function
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/common/block.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/common/block.f
new file mode 100644
index 0000000000000000000000000000000000000000..32a26667d520a782f4be75d3c578857e92c46211
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/common/block.f
@@ -0,0 +1,11 @@
+      SUBROUTINE INITCB
+      DOUBLE PRECISION LONG
+      CHARACTER        STRING
+      INTEGER          OK
+    
+      COMMON  /BLOCK/ LONG, STRING, OK
+      LONG = 1.0
+      STRING = '2'
+      OK = 3
+      RETURN
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/common/gh19161.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/common/gh19161.f90
new file mode 100644
index 0000000000000000000000000000000000000000..3b5e9b6d3f9ff0466db5e0bbbe2be82d39b61326
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/common/gh19161.f90
@@ -0,0 +1,10 @@
+module typedefmod
+  use iso_fortran_env, only: real32
+end module typedefmod
+
+module data
+  use typedefmod, only: real32
+  implicit none
+  real(kind=real32) :: x
+  common/test/x
+end module data
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/accesstype.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/accesstype.f90
new file mode 100644
index 0000000000000000000000000000000000000000..9cc30aa0376eaeff23edeb85469c14f9e1694922
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/accesstype.f90
@@ -0,0 +1,13 @@
+module foo
+  public
+  type, private, bind(c) :: a
+     integer :: i
+  end type a
+  type, bind(c) :: b_
+     integer :: j
+  end type b_
+  public :: b_
+  type :: c
+     integer :: k
+  end type c
+end module foo
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/common_with_division.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/common_with_division.f
new file mode 100644
index 0000000000000000000000000000000000000000..f18e581847d323fd666f7d52b64b856333854a77
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/common_with_division.f
@@ -0,0 +1,17 @@
+      subroutine common_with_division
+      integer lmu,lb,lub,lpmin
+      parameter (lmu=1)
+      parameter (lb=20)
+c     crackfortran fails to parse this  
+c     parameter (lub=(lb-1)*lmu+1)
+c     crackfortran can successfully parse this though
+      parameter (lub=lb*lmu-lmu+1)
+      parameter (lpmin=2)
+
+c     crackfortran fails to parse this correctly 
+c     common /mortmp/ ctmp((lub*(lub+1)*(lub+1))/lpmin+1)
+      
+      common /mortmp/ ctmp(lub/lpmin+1)
+      
+      return
+      end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_common.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_common.f
new file mode 100644
index 0000000000000000000000000000000000000000..ffb05100e5834841a6eeddaeabe50f8adf578770
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_common.f
@@ -0,0 +1,8 @@
+        BLOCK DATA PARAM_INI
+        COMMON /MYCOM/ MYDATA
+            DATA MYDATA /0/
+        END
+        SUBROUTINE SUB1
+        COMMON /MYCOM/ MYDATA
+        MYDATA = MYDATA + 1
+        END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_multiplier.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_multiplier.f
new file mode 100644
index 0000000000000000000000000000000000000000..420db208cb5d0552a3a52bb6e6ef52d16dd840f2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_multiplier.f
@@ -0,0 +1,5 @@
+      BLOCK DATA MYBLK
+      IMPLICIT DOUBLE PRECISION (A-H,O-Z)
+      COMMON /MYCOM/ IVAR1, IVAR2, IVAR3, IVAR4, EVAR5
+            DATA IVAR1, IVAR2, IVAR3, IVAR4, EVAR5 /2*3,2*2,0.0D0/
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_stmts.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_stmts.f90
new file mode 100644
index 0000000000000000000000000000000000000000..b0e1207cdda6676c4addf2c9a4f8445fb8b38dd6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_stmts.f90
@@ -0,0 +1,20 @@
+! gh-23276
+module cmplxdat
+  implicit none
+  integer :: i, j
+  real :: x, y
+  real, dimension(2) :: z
+  real(kind=8) :: pi
+  complex(kind=8), target :: medium_ref_index
+  complex(kind=8), target :: ref_index_one, ref_index_two
+  complex(kind=8), dimension(2) :: my_array
+  real(kind=8), dimension(3) :: my_real_array = (/1.0d0, 2.0d0, 3.0d0/)
+
+  data i, j / 2, 3 /
+  data x, y / 1.5, 2.0 /
+  data z / 3.5, 7.0 /
+  data medium_ref_index / (1.d0, 0.d0) /
+  data ref_index_one, ref_index_two / (13.0d0, 21.0d0), (-30.0d0, 43.0d0) /
+  data my_array / (1.0d0, 2.0d0), (-3.0d0, 4.0d0) /
+  data pi / 3.1415926535897932384626433832795028841971693993751058209749445923078164062d0 /
+end module cmplxdat
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_with_comments.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_with_comments.f
new file mode 100644
index 0000000000000000000000000000000000000000..c6d4c34e33979e6249cef9e4af4d6b9372013b9d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/data_with_comments.f
@@ -0,0 +1,8 @@
+      BLOCK DATA PARAM_INI
+      COMMON /MYCOM/ MYTAB
+      INTEGER  MYTAB(3)
+      DATA MYTAB/
+     *   0, ! 1 and more commenty stuff
+     *   4, ! 2
+     *   0 /
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/foo_deps.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/foo_deps.f90
new file mode 100644
index 0000000000000000000000000000000000000000..a2d1d8769f47365051a6945f3d348196b960099c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/foo_deps.f90
@@ -0,0 +1,6 @@
+module foo
+  type bar
+    character(len = 4) :: text
+  end type bar
+  type(bar), parameter :: abar = bar('abar')
+end module foo
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh15035.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh15035.f
new file mode 100644
index 0000000000000000000000000000000000000000..12535e388084d0d720a5c1ebcaa2d3065a64bfd8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh15035.f
@@ -0,0 +1,16 @@
+        subroutine subb(k)
+          real(8), intent(inout) :: k(:)
+          k=k+1
+        endsubroutine
+
+        subroutine subc(w,k)
+          real(8), intent(in) :: w(:)
+          real(8), intent(out) :: k(size(w))
+          k=w+1
+        endsubroutine
+
+        function t0(value)
+          character value
+          character t0
+          t0 = value
+        endfunction
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh17859.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh17859.f
new file mode 100644
index 0000000000000000000000000000000000000000..23b872842fbad90e5f1fdfdb335270113de5f43b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh17859.f
@@ -0,0 +1,12 @@
+        integer(8) function external_as_statement(fcn)
+        implicit none
+        external fcn
+        integer(8) :: fcn
+        external_as_statement = fcn(0)
+        end
+
+        integer(8) function external_as_attribute(fcn)
+        implicit none
+        integer(8), external :: fcn
+        external_as_attribute = fcn(0)
+        end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh22648.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh22648.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..6c93b48cae95336e1281848f04f5374fef856450
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh22648.pyf
@@ -0,0 +1,7 @@
+python module iri16py ! in
+    interface  ! in :iri16py
+        block data  ! in :iri16py:iridreg_modified.for
+           COMMON /fircom/ eden,tabhe,tabla,tabmo,tabza,tabfl
+       end block data 
+    end interface 
+end python module iri16py
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23533.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23533.f
new file mode 100644
index 0000000000000000000000000000000000000000..d1515e3a0dce2edeb5aba0b364978a00c6a4fe77
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23533.f
@@ -0,0 +1,5 @@
+      SUBROUTINE EXAMPLE( )
+        IF( .TRUE. ) THEN
+            CALL DO_SOMETHING()
+        END IF ! ** .TRUE. **
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23598.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23598.f90
new file mode 100644
index 0000000000000000000000000000000000000000..dfabde2024698e5a6609f3586a23ade19ec40460
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23598.f90
@@ -0,0 +1,4 @@
+integer function intproduct(a, b) result(res)
+  integer, intent(in) :: a, b
+  res = a*b
+end function
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23598Warn.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23598Warn.f90
new file mode 100644
index 0000000000000000000000000000000000000000..a8bed3f0798d8548609a06e2b2906c8b7c769a01
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23598Warn.f90
@@ -0,0 +1,11 @@
+module test_bug
+    implicit none
+    private
+    public :: intproduct
+
+contains
+    integer function intproduct(a, b) result(res)
+    integer, intent(in) :: a, b
+    res = a*b
+    end function
+end module
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23879.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23879.f90
new file mode 100644
index 0000000000000000000000000000000000000000..1b39eb656de6277b80da0f0e3b8a74b0906edb92
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh23879.f90
@@ -0,0 +1,20 @@
+module gh23879
+    implicit none
+    private
+    public :: foo
+
+ contains
+
+    subroutine foo(a, b)
+       integer, intent(in) :: a
+       integer, intent(out) :: b
+       b = a
+       call bar(b)
+    end subroutine
+
+    subroutine bar(x)
+        integer, intent(inout) :: x
+        x = 2*x
+     end subroutine
+
+ end module gh23879
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh27697.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh27697.f90
new file mode 100644
index 0000000000000000000000000000000000000000..dd6c3d5d8f0908d609768ba1dc89fbe5eef2fc89
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh27697.f90
@@ -0,0 +1,12 @@
+module utils
+    implicit none
+  contains
+    subroutine my_abort(message)
+      implicit none
+      character(len=*), intent(in) :: message
+      !f2py callstatement PyErr_SetString(PyExc_ValueError, message);f2py_success = 0;
+      !f2py callprotoargument char*
+      write(0,*) "THIS SHOULD NOT APPEAR"
+      stop 1
+    end subroutine my_abort
+end module utils
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh2848.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh2848.f90
new file mode 100644
index 0000000000000000000000000000000000000000..bd748996d58227327d56a6b4fca9a40d5dee7bcb
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/gh2848.f90
@@ -0,0 +1,13 @@
+      subroutine gh2848( &
+        ! first 2 parameters
+        par1, par2,&
+        ! last 2 parameters
+        par3, par4)
+
+        integer, intent(in)  :: par1, par2
+        integer, intent(out) :: par3, par4
+
+        par3 = par1
+        par4 = par2
+
+      end subroutine gh2848
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/operators.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/operators.f90
new file mode 100644
index 0000000000000000000000000000000000000000..83481c8e228cb78fdbb1fae50c309b6602d9e1b7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/operators.f90
@@ -0,0 +1,49 @@
+module foo
+  type bar
+     character(len = 32) :: item
+  end type bar
+  interface operator(.item.)
+     module procedure item_int, item_real
+  end interface operator(.item.)
+  interface operator(==)
+     module procedure items_are_equal
+  end interface operator(==)
+  interface assignment(=)
+     module procedure get_int, get_real
+  end interface assignment(=)
+contains
+  function item_int(val) result(elem)
+    integer, intent(in) :: val
+    type(bar) :: elem
+
+    write(elem%item, "(I32)") val
+  end function item_int
+
+  function item_real(val) result(elem)
+    real, intent(in) :: val
+    type(bar) :: elem
+
+    write(elem%item, "(1PE32.12)") val
+  end function item_real
+
+  function items_are_equal(val1, val2) result(equal)
+    type(bar), intent(in) :: val1, val2
+    logical :: equal
+
+    equal = (val1%item == val2%item)
+  end function items_are_equal
+
+  subroutine get_real(rval, item)
+    real, intent(out) :: rval
+    type(bar), intent(in) :: item
+
+    read(item%item, *) rval
+  end subroutine get_real
+
+  subroutine get_int(rval, item)
+    integer, intent(out) :: rval
+    type(bar), intent(in) :: item
+
+    read(item%item, *) rval
+  end subroutine get_int
+end module foo
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/privatemod.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/privatemod.f90
new file mode 100644
index 0000000000000000000000000000000000000000..ad88a2ead99e5406f036cafc2b182a7292cd0098
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/privatemod.f90
@@ -0,0 +1,11 @@
+module foo
+  private
+  integer :: a
+  public :: setA
+  integer :: b
+contains
+  subroutine setA(v)
+    integer, intent(in) :: v
+    a = v
+  end subroutine setA
+end module foo
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/publicmod.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/publicmod.f90
new file mode 100644
index 0000000000000000000000000000000000000000..f108d057c5a3a1cfdf7b6b2492dd13467165c1c7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/publicmod.f90
@@ -0,0 +1,10 @@
+module foo
+  public
+  integer, private :: a
+  public :: setA
+contains
+  subroutine setA(v)
+    integer, intent(in) :: v
+    a = v
+  end subroutine setA
+end module foo
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/pubprivmod.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/pubprivmod.f90
new file mode 100644
index 0000000000000000000000000000000000000000..e3993c161d1cf611355ee1e953d7c0f17b033b18
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/pubprivmod.f90
@@ -0,0 +1,10 @@
+module foo
+  public
+  integer, private :: a
+  integer :: b
+contains
+  subroutine setA(v)
+    integer, intent(in) :: v
+    a = v
+  end subroutine setA
+end module foo
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/unicode_comment.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/unicode_comment.f90
new file mode 100644
index 0000000000000000000000000000000000000000..f7b4f4f1481df6c91d6c3b393c612d41c3414861
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/crackfortran/unicode_comment.f90
@@ -0,0 +1,4 @@
+subroutine foo(x)
+  real(8), intent(in) :: x
+  ! Écrit à l'écran la valeur de x
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/f2cmap/.f2py_f2cmap b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/f2cmap/.f2py_f2cmap
new file mode 100644
index 0000000000000000000000000000000000000000..36da2dda79d828678a05e5a1f9a96849f675d73f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/f2cmap/.f2py_f2cmap
@@ -0,0 +1 @@
+dict(real=dict(real32='float', real64='double'), integer=dict(int64='long_long'))
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/f2cmap/isoFortranEnvMap.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/f2cmap/isoFortranEnvMap.f90
new file mode 100644
index 0000000000000000000000000000000000000000..f1ba041b8e359494009a2791f7429bfaec1e43d7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/f2cmap/isoFortranEnvMap.f90
@@ -0,0 +1,9 @@
+      subroutine func1(n, x, res)
+        use, intrinsic :: iso_fortran_env, only: int64, real64
+        implicit none
+        integer(int64), intent(in) :: n
+        real(real64), intent(in) :: x(n)
+        real(real64), intent(out) :: res
+!f2py   intent(hide) :: n
+        res = sum(x)
+      end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/isocintrin/isoCtests.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/isocintrin/isoCtests.f90
new file mode 100644
index 0000000000000000000000000000000000000000..bc562528d1c129483a7971556f0c828014299674
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/isocintrin/isoCtests.f90
@@ -0,0 +1,34 @@
+  module coddity
+    use iso_c_binding, only: c_double, c_int, c_int64_t
+    implicit none
+    contains
+      subroutine c_add(a, b, c) bind(c, name="c_add")
+        real(c_double), intent(in) :: a, b
+        real(c_double), intent(out) :: c
+        c = a + b
+      end subroutine c_add
+      ! gh-9693
+      function wat(x, y) result(z) bind(c)
+          integer(c_int), intent(in) :: x, y
+          integer(c_int) :: z
+
+          z = x + 7
+      end function wat
+      ! gh-25207
+      subroutine c_add_int64(a, b, c) bind(c)
+        integer(c_int64_t), intent(in) :: a, b
+        integer(c_int64_t), intent(out) :: c
+        c = a + b
+      end subroutine c_add_int64
+      ! gh-25207
+      subroutine add_arr(A, B, C)
+         integer(c_int64_t), intent(in) :: A(3)
+         integer(c_int64_t), intent(in) :: B(3)
+         integer(c_int64_t), intent(out) :: C(3)
+         integer :: j
+
+         do j = 1, 3
+            C(j) = A(j)+B(j)
+         end do
+      end subroutine
+  end module coddity
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/kind/foo.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/kind/foo.f90
new file mode 100644
index 0000000000000000000000000000000000000000..57b8b378a32f45c9b6f3db12c12ec03e94cb90ee
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/kind/foo.f90
@@ -0,0 +1,20 @@
+
+
+subroutine selectedrealkind(p, r, res)
+  implicit none
+  
+  integer, intent(in) :: p, r
+  !f2py integer :: r=0
+  integer, intent(out) :: res
+  res = selected_real_kind(p, r)
+
+end subroutine
+
+subroutine selectedintkind(p, res)
+  implicit none
+
+  integer, intent(in) :: p
+  integer, intent(out) :: res
+  res = selected_int_kind(p)
+
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo.f
new file mode 100644
index 0000000000000000000000000000000000000000..a77d1e09e4b348daf854cd508bf7f05b5cc8b5be
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo.f
@@ -0,0 +1,5 @@
+      subroutine bar11(a)
+cf2py intent(out) a
+      integer a
+      a = 11
+      end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo_fixed.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo_fixed.f90
new file mode 100644
index 0000000000000000000000000000000000000000..334133eb5808b45268747eb007ac983f0ab01efa
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo_fixed.f90
@@ -0,0 +1,8 @@
+      module foo_fixed
+      contains
+        subroutine bar12(a)
+!f2py intent(out) a
+          integer a
+          a = 12
+        end subroutine bar12
+      end module foo_fixed
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo_free.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo_free.f90
new file mode 100644
index 0000000000000000000000000000000000000000..5bfc3d262127be96bb7c442b9d35e9498278eb24
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/mixed/foo_free.f90
@@ -0,0 +1,8 @@
+module foo_free
+contains
+  subroutine bar13(a)
+    !f2py intent(out) a
+    integer a
+    a = 13
+  end subroutine bar13
+end module foo_free
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh25337/data.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh25337/data.f90
new file mode 100644
index 0000000000000000000000000000000000000000..84c708bd5da207295c7cd2a0d1ebe333a963a063
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh25337/data.f90
@@ -0,0 +1,8 @@
+module data
+   real(8) :: shift
+contains
+   subroutine set_shift(in_shift)
+      real(8), intent(in) :: in_shift
+      shift = in_shift
+   end subroutine set_shift
+end module data
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh25337/use_data.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh25337/use_data.f90
new file mode 100644
index 0000000000000000000000000000000000000000..50c7df148a4d7115ccd26f32e8fb9de550d1d590
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh25337/use_data.f90
@@ -0,0 +1,6 @@
+subroutine shift_a(dim_a, a)
+    use data, only: shift
+    integer, intent(in) :: dim_a
+    real(8), intent(inout), dimension(dim_a) :: a
+    a = a + shift
+end subroutine shift_a
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh26920/two_mods_with_no_public_entities.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh26920/two_mods_with_no_public_entities.f90
new file mode 100644
index 0000000000000000000000000000000000000000..b6a11872ae30458895f3a30619d772ef17919b35
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh26920/two_mods_with_no_public_entities.f90
@@ -0,0 +1,21 @@
+    module mod2
+        implicit none
+        private mod2_func1
+    contains
+
+        subroutine mod2_func1()
+            print*, "mod2_func1"
+        end subroutine mod2_func1
+
+    end module mod2
+
+    module mod1
+        implicit none
+        private :: mod1_func1
+    contains
+
+        subroutine mod1_func1()
+            print*, "mod1_func1"
+        end subroutine mod1_func1
+
+    end module mod1
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh26920/two_mods_with_one_public_routine.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh26920/two_mods_with_one_public_routine.f90
new file mode 100644
index 0000000000000000000000000000000000000000..af675f4285a4198e69ba4e8e6530403b040d3af5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/gh26920/two_mods_with_one_public_routine.f90
@@ -0,0 +1,21 @@
+    module mod2
+        implicit none
+        PUBLIC :: mod2_func1
+    contains
+
+        subroutine mod2_func1()
+            print*, "mod2_func1"
+        end subroutine mod2_func1
+
+    end module mod2
+
+    module mod1
+        implicit none
+        PUBLIC :: mod1_func1
+    contains
+
+        subroutine mod1_func1()
+            print*, "mod1_func1"
+        end subroutine mod1_func1
+
+    end module mod1
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/module_data_docstring.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/module_data_docstring.f90
new file mode 100644
index 0000000000000000000000000000000000000000..3a6d2199124d22be8b11fc0cb96e4257700e4b37
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/module_data_docstring.f90
@@ -0,0 +1,12 @@
+module mod
+  integer :: i
+  integer :: x(4)
+  real, dimension(2,3) :: a
+  real, allocatable, dimension(:,:) :: b
+contains
+  subroutine foo
+    integer :: k
+    k = 1
+    a(1,2) = a(1,2)+3
+  end subroutine foo
+end module mod
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/use_modules.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/use_modules.f90
new file mode 100644
index 0000000000000000000000000000000000000000..6d6687c2da9607f306fb470e5a7eeb34fb32707b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/modules/use_modules.f90
@@ -0,0 +1,20 @@
+module mathops
+  implicit none
+contains
+  function add(a, b) result(c)
+    integer, intent(in) :: a, b
+    integer :: c
+    c = a + b
+  end function add
+end module mathops
+
+module useops
+  use mathops, only: add
+  implicit none
+contains
+  function sum_and_double(a, b) result(d)
+    integer, intent(in) :: a, b
+    integer :: d
+    d = 2 * add(a, b)
+  end function sum_and_double
+end module useops
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/negative_bounds/issue_20853.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/negative_bounds/issue_20853.f90
new file mode 100644
index 0000000000000000000000000000000000000000..66501639a7b2a2259c10cd8e7cef01e58033bc2e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/negative_bounds/issue_20853.f90
@@ -0,0 +1,7 @@
+subroutine foo(is_, ie_, arr, tout)
+ implicit none
+ integer :: is_,ie_
+ real, intent(in) :: arr(is_:ie_)
+ real, intent(out) :: tout(is_:ie_)
+ tout = arr
+end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_array.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_array.f90
new file mode 100644
index 0000000000000000000000000000000000000000..80dce540c4ccf3c45a43aa85fc5865266918836d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_array.f90
@@ -0,0 +1,45 @@
+! Check that parameter arrays are correctly intercepted.
+subroutine foo_array(x, y, z)
+  implicit none
+  integer, parameter :: dp = selected_real_kind(15)
+  integer, parameter :: pa = 2
+  integer, parameter :: intparamarray(2) = (/ 3, 5 /)
+  integer, dimension(pa), parameter :: pb = (/ 2, 10 /)
+  integer, parameter, dimension(intparamarray(1)) :: pc = (/ 2, 10, 20 /)
+  real(dp), parameter :: doubleparamarray(3) = (/ 3.14_dp, 4._dp, 6.44_dp /)
+  real(dp), intent(inout) :: x(intparamarray(1))
+  real(dp), intent(inout) :: y(intparamarray(2))
+  real(dp), intent(out) :: z
+
+  x = x/pb(2)
+  y = y*pc(2)
+  z = doubleparamarray(1)*doubleparamarray(2) + doubleparamarray(3)
+
+  return
+end subroutine
+
+subroutine foo_array_any_index(x, y)
+  implicit none
+  integer, parameter :: dp = selected_real_kind(15)
+  integer, parameter, dimension(-1:1) :: myparamarray = (/ 6, 3, 1 /)
+  integer, parameter, dimension(2) :: nested = (/ 2, 0 /)
+  integer, parameter :: dim = 2
+  real(dp), intent(in) :: x(myparamarray(-1))
+  real(dp), intent(out) :: y(nested(1), myparamarray(nested(dim)))
+
+  y = reshape(x, (/nested(1), myparamarray(nested(2))/))
+
+  return
+end subroutine
+
+subroutine foo_array_delims(x)
+  implicit none
+  integer, parameter :: dp = selected_real_kind(15)
+  integer, parameter, dimension(2) :: myparamarray = (/ (6), 1 /)
+  integer, parameter, dimension(3) :: test = (/2, 1, (3)/)
+  real(dp), intent(out) :: x
+
+  x = myparamarray(1)+test(3)
+
+  return
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_both.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_both.f90
new file mode 100644
index 0000000000000000000000000000000000000000..b16af3e8bb5c533c6ef5a051537e471565ca4337
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_both.f90
@@ -0,0 +1,57 @@
+! Check that parameters are correct intercepted.
+! Constants with comma separations are commonly
+! used, for instance Pi = 3._dp
+subroutine foo(x)
+  implicit none
+  integer, parameter :: sp = selected_real_kind(6)
+  integer, parameter :: dp = selected_real_kind(15)
+  integer, parameter :: ii = selected_int_kind(9)
+  integer, parameter :: il = selected_int_kind(18)
+  real(dp), intent(inout) :: x
+  dimension x(3)
+  real(sp), parameter :: three_s = 3._sp
+  real(dp), parameter :: three_d = 3._dp
+  integer(ii), parameter :: three_i = 3_ii
+  integer(il), parameter :: three_l = 3_il
+  x(1) = x(1) + x(2) * three_s * three_i + x(3) * three_d * three_l
+  x(2) = x(2) * three_s
+  x(3) = x(3) * three_l
+  return
+end subroutine
+
+
+subroutine foo_no(x)
+  implicit none
+  integer, parameter :: sp = selected_real_kind(6)
+  integer, parameter :: dp = selected_real_kind(15)
+  integer, parameter :: ii = selected_int_kind(9)
+  integer, parameter :: il = selected_int_kind(18)
+  real(dp), intent(inout) :: x
+  dimension x(3)
+  real(sp), parameter :: three_s = 3.
+  real(dp), parameter :: three_d = 3.
+  integer(ii), parameter :: three_i = 3
+  integer(il), parameter :: three_l = 3
+  x(1) = x(1) + x(2) * three_s * three_i + x(3) * three_d * three_l
+  x(2) = x(2) * three_s
+  x(3) = x(3) * three_l
+  return
+end subroutine
+
+subroutine foo_sum(x)
+  implicit none
+  integer, parameter :: sp = selected_real_kind(6)
+  integer, parameter :: dp = selected_real_kind(15)
+  integer, parameter :: ii = selected_int_kind(9)
+  integer, parameter :: il = selected_int_kind(18)
+  real(dp), intent(inout) :: x
+  dimension x(3)
+  real(sp), parameter :: three_s = 2._sp + 1._sp
+  real(dp), parameter :: three_d = 1._dp + 2._dp
+  integer(ii), parameter :: three_i = 2_ii + 1_ii
+  integer(il), parameter :: three_l = 1_il + 2_il
+  x(1) = x(1) + x(2) * three_s * three_i + x(3) * three_d * three_l
+  x(2) = x(2) * three_s
+  x(3) = x(3) * three_l
+  return
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_compound.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_compound.f90
new file mode 100644
index 0000000000000000000000000000000000000000..8dbe74de4c1fafb66ca5ed08fbeebc4b36c4926b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_compound.f90
@@ -0,0 +1,15 @@
+! Check that parameters are correct intercepted.
+! Constants with comma separations are commonly
+! used, for instance Pi = 3._dp
+subroutine foo_compound_int(x)
+  implicit none
+  integer, parameter :: ii = selected_int_kind(9)
+  integer(ii), intent(inout) :: x
+  dimension x(3)
+  integer(ii), parameter :: three = 3_ii
+  integer(ii), parameter :: two = 2_ii
+  integer(ii), parameter :: six = three * 1_ii * two
+
+  x(1) = x(1) + x(2) + x(3) * six
+  return
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_integer.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_integer.f90
new file mode 100644
index 0000000000000000000000000000000000000000..34756a390028e801d78945bb94d74f220a8b43d6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_integer.f90
@@ -0,0 +1,22 @@
+! Check that parameters are correct intercepted.
+! Constants with comma separations are commonly
+! used, for instance Pi = 3._dp
+subroutine foo_int(x)
+  implicit none
+  integer, parameter :: ii = selected_int_kind(9)
+  integer(ii), intent(inout) :: x
+  dimension x(3)
+  integer(ii), parameter :: three = 3_ii
+  x(1) = x(1) + x(2) + x(3) * three
+  return
+end subroutine
+
+subroutine foo_long(x)
+  implicit none
+  integer, parameter :: ii = selected_int_kind(18)
+  integer(ii), intent(inout) :: x
+  dimension x(3)
+  integer(ii), parameter :: three = 3_ii
+  x(1) = x(1) + x(2) + x(3) * three
+  return
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_non_compound.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_non_compound.f90
new file mode 100644
index 0000000000000000000000000000000000000000..bcaa03bd4f7233eec8a21b0fb9a41a949ecc1938
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_non_compound.f90
@@ -0,0 +1,23 @@
+! Check that parameters are correct intercepted.
+! Specifically that types of constants without 
+! compound kind specs are correctly inferred
+! adapted Gibbs iteration code from pymc 
+! for this test case 
+subroutine foo_non_compound_int(x)
+  implicit none
+  integer, parameter :: ii = selected_int_kind(9)
+
+  integer(ii)   maxiterates
+  parameter (maxiterates=2)
+
+  integer(ii)   maxseries
+  parameter (maxseries=2)
+
+  integer(ii)   wasize
+  parameter (wasize=maxiterates*maxseries)
+  integer(ii), intent(inout) :: x
+  dimension x(wasize)
+
+  x(1) = x(1) + x(2) + x(3) + x(4) * wasize
+  return
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_real.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_real.f90
new file mode 100644
index 0000000000000000000000000000000000000000..c4d25bbbd7a2953f2a9d30f905f868645d5bdb84
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/parameter/constant_real.f90
@@ -0,0 +1,23 @@
+! Check that parameters are correct intercepted.
+! Constants with comma separations are commonly
+! used, for instance Pi = 3._dp
+subroutine foo_single(x)
+  implicit none
+  integer, parameter :: rp = selected_real_kind(6)
+  real(rp), intent(inout) :: x
+  dimension x(3)
+  real(rp), parameter :: three = 3._rp
+  x(1) = x(1) + x(2) + x(3) * three
+  return
+end subroutine
+
+subroutine foo_double(x)
+  implicit none
+  integer, parameter :: rp = selected_real_kind(15)
+  real(rp), intent(inout) :: x
+  dimension x(3)
+  real(rp), parameter :: three = 3._rp
+  x(1) = x(1) + x(2) + x(3) * three
+  return
+end subroutine
+
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/quoted_character/foo.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/quoted_character/foo.f
new file mode 100644
index 0000000000000000000000000000000000000000..bd2e8eb149ff0b15494d5d42516648256ba4bca9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/quoted_character/foo.f
@@ -0,0 +1,14 @@
+      SUBROUTINE FOO(OUT1, OUT2, OUT3, OUT4, OUT5, OUT6)
+      CHARACTER SINGLE, DOUBLE, SEMICOL, EXCLA, OPENPAR, CLOSEPAR
+      PARAMETER (SINGLE="'", DOUBLE='"', SEMICOL=';', EXCLA="!",
+     1           OPENPAR="(", CLOSEPAR=")")
+      CHARACTER OUT1, OUT2, OUT3, OUT4, OUT5, OUT6
+Cf2py intent(out) OUT1, OUT2, OUT3, OUT4, OUT5, OUT6
+      OUT1 = SINGLE
+      OUT2 = DOUBLE
+      OUT3 = SEMICOL
+      OUT4 = EXCLA
+      OUT5 = OPENPAR
+      OUT6 = CLOSEPAR
+      RETURN
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/AB.inc b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/AB.inc
new file mode 100644
index 0000000000000000000000000000000000000000..712b0c24fd048e7e98407c36c6f255a03dedeb57
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/AB.inc
@@ -0,0 +1 @@
+real(8) b, n, m
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/assignOnlyModule.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/assignOnlyModule.f90
new file mode 100644
index 0000000000000000000000000000000000000000..ea6453efd714489e1b8b9ee541b44f571585598f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/assignOnlyModule.f90
@@ -0,0 +1,25 @@
+      MODULE MOD_TYPES
+        INTEGER, PARAMETER :: SP = SELECTED_REAL_KIND(6, 37)
+        INTEGER, PARAMETER :: DP = SELECTED_REAL_KIND(15, 307)
+      END MODULE
+!
+      MODULE F_GLOBALS
+         USE MOD_TYPES
+         IMPLICIT NONE
+         INTEGER, PARAMETER :: N_MAX = 16
+         INTEGER, PARAMETER :: I_MAX = 18
+         INTEGER, PARAMETER :: J_MAX = 72
+         REAL(SP) :: XREF
+      END MODULE F_GLOBALS
+!
+       SUBROUTINE DUMMY ()
+!
+       USE F_GLOBALS
+       USE MOD_TYPES
+       IMPLICIT NONE
+!
+       REAL(SP) :: MINIMAL
+       MINIMAL = 0.01*XREF
+       RETURN
+!
+       END SUBROUTINE DUMMY
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/datonly.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/datonly.f90
new file mode 100644
index 0000000000000000000000000000000000000000..c48ddd2516cc2b4b217de9603a6723163f076657
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/datonly.f90
@@ -0,0 +1,17 @@
+module datonly
+  implicit none
+  integer, parameter :: max_value = 100
+  real, dimension(:), allocatable :: data_array
+end module datonly
+
+module dat
+  implicit none
+  integer, parameter :: max_= 1009
+end module dat
+
+subroutine simple_subroutine(ain, aout)
+  use dat, only: max_
+  integer, intent(in) :: ain
+  integer, intent(out) :: aout
+  aout = ain + max_
+end subroutine simple_subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f77comments.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f77comments.f
new file mode 100644
index 0000000000000000000000000000000000000000..901dedadb2c6e679c5490567d146b21413c9d869
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f77comments.f
@@ -0,0 +1,26 @@
+      SUBROUTINE TESTSUB(
+     &    INPUT1, INPUT2,                                 !Input
+     &    OUTPUT1, OUTPUT2)                               !Output
+
+      IMPLICIT NONE
+      INTEGER, INTENT(IN) :: INPUT1, INPUT2
+      INTEGER, INTENT(OUT) :: OUTPUT1, OUTPUT2
+
+      OUTPUT1 = INPUT1 + INPUT2
+      OUTPUT2 = INPUT1 * INPUT2
+
+      RETURN
+      END SUBROUTINE TESTSUB
+
+      SUBROUTINE TESTSUB2(OUTPUT)
+      IMPLICIT NONE
+      INTEGER, PARAMETER :: N = 10 ! Array dimension
+      REAL, INTENT(OUT) :: OUTPUT(N)
+      INTEGER :: I
+
+      DO I = 1, N
+         OUTPUT(I) = I * 2.0
+      END DO
+
+      RETURN
+      END
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f77fixedform.f95 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f77fixedform.f95
new file mode 100644
index 0000000000000000000000000000000000000000..2cf1d00c1dde0bf51385608b7b29662f6a6556a0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f77fixedform.f95
@@ -0,0 +1,5 @@
+C This is an invalid file, but it does compile with -ffixed-form
+      subroutine mwe(
+     & x)
+          real x
+      end subroutine mwe
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f90continuation.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f90continuation.f90
new file mode 100644
index 0000000000000000000000000000000000000000..06912719dbeea9e870a1a6362adf83047162f911
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/f90continuation.f90
@@ -0,0 +1,9 @@
+SUBROUTINE TESTSUB(INPUT1, & ! Hello
+! commenty
+INPUT2, OUTPUT1, OUTPUT2) ! more comments
+    INTEGER, INTENT(IN) :: INPUT1, INPUT2
+    INTEGER, INTENT(OUT) :: OUTPUT1, OUTPUT2
+    OUTPUT1 = INPUT1 + &
+              INPUT2
+    OUTPUT2 = INPUT1 * INPUT2
+END SUBROUTINE TESTSUB
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/incfile.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/incfile.f90
new file mode 100644
index 0000000000000000000000000000000000000000..3caef77b67e8cf2e78d269b53a4e5bedbfe92ac3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/incfile.f90
@@ -0,0 +1,5 @@
+function add(n,m) result(b)
+  implicit none
+  include 'AB.inc'
+  b = n + m
+end function add
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/inout.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/inout.f90
new file mode 100644
index 0000000000000000000000000000000000000000..430258a3cfc01c73fd2993435681639d9df684f7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/inout.f90
@@ -0,0 +1,9 @@
+! Check that intent(in out) translates as intent(inout).
+! The separation seems to be a common usage.
+      subroutine foo(x)
+          implicit none
+          real(4), intent(in out) :: x
+          dimension x(3)
+          x(1) = x(1) + x(2) + x(3)
+          return
+      end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/lower_f2py_fortran.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/lower_f2py_fortran.f90
new file mode 100644
index 0000000000000000000000000000000000000000..f6ac53959e25deed16595c5067673fa39d0c2757
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/lower_f2py_fortran.f90
@@ -0,0 +1,5 @@
+subroutine inquire_next(IU)
+   IMPLICIT NONE
+   integer :: IU
+   !f2py intent(in) IU
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/mod_derived_types.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/mod_derived_types.f90
new file mode 100644
index 0000000000000000000000000000000000000000..b4557d1629a3cc3a30877f645dd9343052930745
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/regression/mod_derived_types.f90
@@ -0,0 +1,23 @@
+module mtypes
+  implicit none
+  integer, parameter :: value1 = 100
+  type :: master_data
+    integer :: idat = 200
+  end type master_data
+  type(master_data) :: masterdata
+end module mtypes
+
+
+subroutine no_type_subroutine(ain, aout)
+  use mtypes, only: value1
+  integer, intent(in) :: ain
+  integer, intent(out) :: aout
+  aout = ain + value1
+end subroutine no_type_subroutine
+
+subroutine type_subroutine(ain, aout)
+  use mtypes, only: masterdata
+  integer, intent(in) :: ain
+  integer, intent(out) :: aout
+  aout = ain + masterdata%idat
+end subroutine type_subroutine
\ No newline at end of file
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_character/foo77.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_character/foo77.f
new file mode 100644
index 0000000000000000000000000000000000000000..7b025c1ac9cadb5f010df86a574dfd9b5671e913
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_character/foo77.f
@@ -0,0 +1,45 @@
+       function t0(value)
+         character value
+         character t0
+         t0 = value
+       end
+       function t1(value)
+         character*1 value
+         character*1 t1
+         t1 = value
+       end
+       function t5(value)
+         character*5 value
+         character*5 t5
+         t5 = value
+       end
+       function ts(value)
+         character*(*) value
+         character*(*) ts
+         ts = value
+       end
+
+       subroutine s0(t0,value)
+         character value
+         character t0
+cf2py    intent(out) t0
+         t0 = value
+       end
+       subroutine s1(t1,value)
+         character*1 value
+         character*1 t1
+cf2py    intent(out) t1
+         t1 = value
+       end
+       subroutine s5(t5,value)
+         character*5 value
+         character*5 t5
+cf2py    intent(out) t5
+         t5 = value
+       end
+       subroutine ss(ts,value)
+         character*(*) value
+         character*10 ts
+cf2py    intent(out) ts
+         ts = value
+       end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_character/foo90.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_character/foo90.f90
new file mode 100644
index 0000000000000000000000000000000000000000..09a50ccd069365eb502ae141055ab96293e12a0e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_character/foo90.f90
@@ -0,0 +1,48 @@
+module f90_return_char
+  contains
+       function t0(value)
+         character :: value
+         character :: t0
+         t0 = value
+       end function t0
+       function t1(value)
+         character(len=1) :: value
+         character(len=1) :: t1
+         t1 = value
+       end function t1
+       function t5(value)
+         character(len=5) :: value
+         character(len=5) :: t5
+         t5 = value
+       end function t5
+       function ts(value)
+         character(len=*) :: value
+         character(len=10) :: ts
+         ts = value
+       end function ts
+
+       subroutine s0(t0,value)
+         character :: value
+         character :: t0
+!f2py    intent(out) t0
+         t0 = value
+       end subroutine s0
+       subroutine s1(t1,value)
+         character(len=1) :: value
+         character(len=1) :: t1
+!f2py    intent(out) t1
+         t1 = value
+       end subroutine s1
+       subroutine s5(t5,value)
+         character(len=5) :: value
+         character(len=5) :: t5
+!f2py    intent(out) t5
+         t5 = value
+       end subroutine s5
+       subroutine ss(ts,value)
+         character(len=*) :: value
+         character(len=10) :: ts
+!f2py    intent(out) ts
+         ts = value
+       end subroutine ss
+end module f90_return_char
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_complex/foo77.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_complex/foo77.f
new file mode 100644
index 0000000000000000000000000000000000000000..22e11efc0371ffb2f2b08c76c3ad55b7004be3c5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_complex/foo77.f
@@ -0,0 +1,45 @@
+       function t0(value)
+         complex value
+         complex t0
+         t0 = value
+       end
+       function t8(value)
+         complex*8 value
+         complex*8 t8
+         t8 = value
+       end
+       function t16(value)
+         complex*16 value
+         complex*16 t16
+         t16 = value
+       end
+       function td(value)
+         double complex value
+         double complex td
+         td = value
+       end
+
+       subroutine s0(t0,value)
+         complex value
+         complex t0
+cf2py    intent(out) t0
+         t0 = value
+       end
+       subroutine s8(t8,value)
+         complex*8 value
+         complex*8 t8
+cf2py    intent(out) t8
+         t8 = value
+       end
+       subroutine s16(t16,value)
+         complex*16 value
+         complex*16 t16
+cf2py    intent(out) t16
+         t16 = value
+       end
+       subroutine sd(td,value)
+         double complex value
+         double complex td
+cf2py    intent(out) td
+         td = value
+       end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_complex/foo90.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_complex/foo90.f90
new file mode 100644
index 0000000000000000000000000000000000000000..34ab31f3af93a7195e5ffd4404d2fd1168aed282
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_complex/foo90.f90
@@ -0,0 +1,48 @@
+module f90_return_complex
+  contains
+       function t0(value)
+         complex :: value
+         complex :: t0
+         t0 = value
+       end function t0
+       function t8(value)
+         complex(kind=4) :: value
+         complex(kind=4) :: t8
+         t8 = value
+       end function t8
+       function t16(value)
+         complex(kind=8) :: value
+         complex(kind=8) :: t16
+         t16 = value
+       end function t16
+       function td(value)
+         double complex :: value
+         double complex :: td
+         td = value
+       end function td
+
+       subroutine s0(t0,value)
+         complex :: value
+         complex :: t0
+!f2py    intent(out) t0
+         t0 = value
+       end subroutine s0
+       subroutine s8(t8,value)
+         complex(kind=4) :: value
+         complex(kind=4) :: t8
+!f2py    intent(out) t8
+         t8 = value
+       end subroutine s8
+       subroutine s16(t16,value)
+         complex(kind=8) :: value
+         complex(kind=8) :: t16
+!f2py    intent(out) t16
+         t16 = value
+       end subroutine s16
+       subroutine sd(td,value)
+         double complex :: value
+         double complex :: td
+!f2py    intent(out) td
+         td = value
+       end subroutine sd
+end module f90_return_complex
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_integer/foo77.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_integer/foo77.f
new file mode 100644
index 0000000000000000000000000000000000000000..b910f261a31f4c6af6f40b4f1069d5f951d47d71
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_integer/foo77.f
@@ -0,0 +1,56 @@
+       function t0(value)
+         integer value
+         integer t0
+         t0 = value
+       end
+       function t1(value)
+         integer*1 value
+         integer*1 t1
+         t1 = value
+       end
+       function t2(value)
+         integer*2 value
+         integer*2 t2
+         t2 = value
+       end
+       function t4(value)
+         integer*4 value
+         integer*4 t4
+         t4 = value
+       end
+       function t8(value)
+         integer*8 value
+         integer*8 t8
+         t8 = value
+       end
+
+       subroutine s0(t0,value)
+         integer value
+         integer t0
+cf2py    intent(out) t0
+         t0 = value
+       end
+       subroutine s1(t1,value)
+         integer*1 value
+         integer*1 t1
+cf2py    intent(out) t1
+         t1 = value
+       end
+       subroutine s2(t2,value)
+         integer*2 value
+         integer*2 t2
+cf2py    intent(out) t2
+         t2 = value
+       end
+       subroutine s4(t4,value)
+         integer*4 value
+         integer*4 t4
+cf2py    intent(out) t4
+         t4 = value
+       end
+       subroutine s8(t8,value)
+         integer*8 value
+         integer*8 t8
+cf2py    intent(out) t8
+         t8 = value
+       end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_integer/foo90.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_integer/foo90.f90
new file mode 100644
index 0000000000000000000000000000000000000000..e5da9ec19feef90a38bb2fa364cbfebe37fcf912
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_integer/foo90.f90
@@ -0,0 +1,59 @@
+module f90_return_integer
+  contains
+       function t0(value)
+         integer :: value
+         integer :: t0
+         t0 = value
+       end function t0
+       function t1(value)
+         integer(kind=1) :: value
+         integer(kind=1) :: t1
+         t1 = value
+       end function t1
+       function t2(value)
+         integer(kind=2) :: value
+         integer(kind=2) :: t2
+         t2 = value
+       end function t2
+       function t4(value)
+         integer(kind=4) :: value
+         integer(kind=4) :: t4
+         t4 = value
+       end function t4
+       function t8(value)
+         integer(kind=8) :: value
+         integer(kind=8) :: t8
+         t8 = value
+       end function t8
+
+       subroutine s0(t0,value)
+         integer :: value
+         integer :: t0
+!f2py    intent(out) t0
+         t0 = value
+       end subroutine s0
+       subroutine s1(t1,value)
+         integer(kind=1) :: value
+         integer(kind=1) :: t1
+!f2py    intent(out) t1
+         t1 = value
+       end subroutine s1
+       subroutine s2(t2,value)
+         integer(kind=2) :: value
+         integer(kind=2) :: t2
+!f2py    intent(out) t2
+         t2 = value
+       end subroutine s2
+       subroutine s4(t4,value)
+         integer(kind=4) :: value
+         integer(kind=4) :: t4
+!f2py    intent(out) t4
+         t4 = value
+       end subroutine s4
+       subroutine s8(t8,value)
+         integer(kind=8) :: value
+         integer(kind=8) :: t8
+!f2py    intent(out) t8
+         t8 = value
+       end subroutine s8
+end module f90_return_integer
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_logical/foo77.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_logical/foo77.f
new file mode 100644
index 0000000000000000000000000000000000000000..a886ec6f409c12d59110e39561ce78c920c9c37d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_logical/foo77.f
@@ -0,0 +1,56 @@
+       function t0(value)
+         logical value
+         logical t0
+         t0 = value
+       end
+       function t1(value)
+         logical*1 value
+         logical*1 t1
+         t1 = value
+       end
+       function t2(value)
+         logical*2 value
+         logical*2 t2
+         t2 = value
+       end
+       function t4(value)
+         logical*4 value
+         logical*4 t4
+         t4 = value
+       end
+c       function t8(value)
+c         logical*8 value
+c         logical*8 t8
+c         t8 = value
+c       end
+
+       subroutine s0(t0,value)
+         logical value
+         logical t0
+cf2py    intent(out) t0
+         t0 = value
+       end
+       subroutine s1(t1,value)
+         logical*1 value
+         logical*1 t1
+cf2py    intent(out) t1
+         t1 = value
+       end
+       subroutine s2(t2,value)
+         logical*2 value
+         logical*2 t2
+cf2py    intent(out) t2
+         t2 = value
+       end
+       subroutine s4(t4,value)
+         logical*4 value
+         logical*4 t4
+cf2py    intent(out) t4
+         t4 = value
+       end
+c       subroutine s8(t8,value)
+c         logical*8 value
+c         logical*8 t8
+cf2py    intent(out) t8
+c         t8 = value
+c       end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_logical/foo90.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_logical/foo90.f90
new file mode 100644
index 0000000000000000000000000000000000000000..12e2fcf5b28def4db59d8ddcb79723cac2ee4e24
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_logical/foo90.f90
@@ -0,0 +1,59 @@
+module f90_return_logical
+  contains
+       function t0(value)
+         logical :: value
+         logical :: t0
+         t0 = value
+       end function t0
+       function t1(value)
+         logical(kind=1) :: value
+         logical(kind=1) :: t1
+         t1 = value
+       end function t1
+       function t2(value)
+         logical(kind=2) :: value
+         logical(kind=2) :: t2
+         t2 = value
+       end function t2
+       function t4(value)
+         logical(kind=4) :: value
+         logical(kind=4) :: t4
+         t4 = value
+       end function t4
+       function t8(value)
+         logical(kind=8) :: value
+         logical(kind=8) :: t8
+         t8 = value
+       end function t8
+
+       subroutine s0(t0,value)
+         logical :: value
+         logical :: t0
+!f2py    intent(out) t0
+         t0 = value
+       end subroutine s0
+       subroutine s1(t1,value)
+         logical(kind=1) :: value
+         logical(kind=1) :: t1
+!f2py    intent(out) t1
+         t1 = value
+       end subroutine s1
+       subroutine s2(t2,value)
+         logical(kind=2) :: value
+         logical(kind=2) :: t2
+!f2py    intent(out) t2
+         t2 = value
+       end subroutine s2
+       subroutine s4(t4,value)
+         logical(kind=4) :: value
+         logical(kind=4) :: t4
+!f2py    intent(out) t4
+         t4 = value
+       end subroutine s4
+       subroutine s8(t8,value)
+         logical(kind=8) :: value
+         logical(kind=8) :: t8
+!f2py    intent(out) t8
+         t8 = value
+       end subroutine s8
+end module f90_return_logical
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_real/foo77.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_real/foo77.f
new file mode 100644
index 0000000000000000000000000000000000000000..66201632eb02c732cad0043a6880b4f4ebd4878c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_real/foo77.f
@@ -0,0 +1,45 @@
+       function t0(value)
+         real value
+         real t0
+         t0 = value
+       end
+       function t4(value)
+         real*4 value
+         real*4 t4
+         t4 = value
+       end
+       function t8(value)
+         real*8 value
+         real*8 t8
+         t8 = value
+       end
+       function td(value)
+         double precision value
+         double precision td
+         td = value
+       end
+
+       subroutine s0(t0,value)
+         real value
+         real t0
+cf2py    intent(out) t0
+         t0 = value
+       end
+       subroutine s4(t4,value)
+         real*4 value
+         real*4 t4
+cf2py    intent(out) t4
+         t4 = value
+       end
+       subroutine s8(t8,value)
+         real*8 value
+         real*8 t8
+cf2py    intent(out) t8
+         t8 = value
+       end
+       subroutine sd(td,value)
+         double precision value
+         double precision td
+cf2py    intent(out) td
+         td = value
+       end
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_real/foo90.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_real/foo90.f90
new file mode 100644
index 0000000000000000000000000000000000000000..54a61f849b25572afe68064cffc04688c80f6962
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/return_real/foo90.f90
@@ -0,0 +1,48 @@
+module f90_return_real
+  contains
+       function t0(value)
+         real :: value
+         real :: t0
+         t0 = value
+       end function t0
+       function t4(value)
+         real(kind=4) :: value
+         real(kind=4) :: t4
+         t4 = value
+       end function t4
+       function t8(value)
+         real(kind=8) :: value
+         real(kind=8) :: t8
+         t8 = value
+       end function t8
+       function td(value)
+         double precision :: value
+         double precision :: td
+         td = value
+       end function td
+
+       subroutine s0(t0,value)
+         real :: value
+         real :: t0
+!f2py    intent(out) t0
+         t0 = value
+       end subroutine s0
+       subroutine s4(t4,value)
+         real(kind=4) :: value
+         real(kind=4) :: t4
+!f2py    intent(out) t4
+         t4 = value
+       end subroutine s4
+       subroutine s8(t8,value)
+         real(kind=8) :: value
+         real(kind=8) :: t8
+!f2py    intent(out) t8
+         t8 = value
+       end subroutine s8
+       subroutine sd(td,value)
+         double precision :: value
+         double precision :: td
+!f2py    intent(out) td
+         td = value
+       end subroutine sd
+end module f90_return_real
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/funcfortranname.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/funcfortranname.f
new file mode 100644
index 0000000000000000000000000000000000000000..686a9f62cb10220f06b8f3907defcf3766dba6b1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/funcfortranname.f
@@ -0,0 +1,5 @@
+      REAL*8 FUNCTION FUNCFORTRANNAME(A,B)
+      REAL*8 A, B
+      FUNCFORTRANNAME = A + B
+      RETURN
+      END FUNCTION
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/funcfortranname.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/funcfortranname.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..e83d7505b24d40e7ed6e817a956d56647765f947
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/funcfortranname.pyf
@@ -0,0 +1,11 @@
+python module funcfortranname ! in
+    interface  ! in :funcfortranname
+        function funcfortranname_default(a,b) ! in :funcfortranname:funcfortranname.f
+            fortranname funcfortranname
+            real*8 :: a
+            real*8 :: b
+            real*8 :: funcfortranname_default
+            real*8, intent(out) :: funcfortranname
+        end function funcfortranname_default
+    end interface
+end python module funcfortranname
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/subrout.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/subrout.f
new file mode 100644
index 0000000000000000000000000000000000000000..41924110264033905e1dcaf78fd78a491efc75da
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/subrout.f
@@ -0,0 +1,4 @@
+      SUBROUTINE SUBROUT(A,B,C)
+      REAL*8 A, B, C
+      C = A + B
+      END SUBROUTINE
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/subrout.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/subrout.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..d2f5ce8cfa8d32ec508edc1e4836046fe45d7b59
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/routines/subrout.pyf
@@ -0,0 +1,10 @@
+python module subrout ! in
+    interface  ! in :subrout
+        subroutine subrout_default(a,b,c) ! in :subrout:subrout.f
+            fortranname subrout
+            real*8 :: a
+            real*8 :: b
+            real*8, intent(out) :: c
+        end subroutine subrout_default
+    end interface
+end python module subrout
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/size/foo.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/size/foo.f90
new file mode 100644
index 0000000000000000000000000000000000000000..2ad165877748ed6084daa804d9d57ee011c8f55a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/size/foo.f90
@@ -0,0 +1,44 @@
+
+subroutine foo(a, n, m, b)
+  implicit none
+
+  real, intent(in) :: a(n, m)
+  integer, intent(in) :: n, m
+  real, intent(out) :: b(size(a, 1))
+
+  integer :: i
+
+  do i = 1, size(b)
+    b(i) = sum(a(i,:))
+  enddo
+end subroutine
+
+subroutine trans(x,y)
+  implicit none
+  real, intent(in), dimension(:,:) :: x
+  real, intent(out), dimension( size(x,2), size(x,1) ) :: y
+  integer :: N, M, i, j
+  N = size(x,1)
+  M = size(x,2)
+  DO i=1,N
+     do j=1,M
+        y(j,i) = x(i,j)
+     END DO
+  END DO
+end subroutine trans
+
+subroutine flatten(x,y)
+  implicit none
+  real, intent(in), dimension(:,:) :: x
+  real, intent(out), dimension( size(x) ) :: y
+  integer :: N, M, i, j, k
+  N = size(x,1)
+  M = size(x,2)
+  k = 1
+  DO i=1,N
+     do j=1,M
+        y(k) = x(i,j)
+        k = k + 1
+     END DO
+  END DO
+end subroutine flatten
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/char.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/char.f90
new file mode 100644
index 0000000000000000000000000000000000000000..242bbef28f21b3fa2a4b340364df6b22a0d647c6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/char.f90
@@ -0,0 +1,29 @@
+MODULE char_test
+
+CONTAINS
+
+SUBROUTINE change_strings(strings, n_strs, out_strings)
+    IMPLICIT NONE
+
+    ! Inputs
+    INTEGER, INTENT(IN) :: n_strs
+    CHARACTER, INTENT(IN), DIMENSION(2,n_strs) :: strings
+    CHARACTER, INTENT(OUT), DIMENSION(2,n_strs) :: out_strings
+
+!f2py INTEGER, INTENT(IN) :: n_strs
+!f2py CHARACTER, INTENT(IN), DIMENSION(2,n_strs) :: strings
+!f2py CHARACTER, INTENT(OUT), DIMENSION(2,n_strs) :: strings
+
+    ! Misc.
+    INTEGER*4 :: j
+
+
+    DO j=1, n_strs
+        out_strings(1,j) = strings(1,j)
+        out_strings(2,j) = 'A'
+    END DO
+
+END SUBROUTINE change_strings
+
+END MODULE char_test
+
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/fixed_string.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/fixed_string.f90
new file mode 100644
index 0000000000000000000000000000000000000000..8c8e5a3e5ed8dea480b1be257b647c12da0ed2ca
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/fixed_string.f90
@@ -0,0 +1,34 @@
+function sint(s) result(i)
+   implicit none
+   character(len=*) :: s
+   integer :: j, i
+   i = 0
+   do j=len(s), 1, -1
+    if (.not.((i.eq.0).and.(s(j:j).eq.' '))) then
+      i = i + ichar(s(j:j)) * 10 ** (j - 1)
+    endif
+   end do
+   return
+ end function sint
+
+ function test_in_bytes4(a) result (i)
+   implicit none
+   integer :: sint
+   character(len=4) :: a
+   integer :: i
+   i = sint(a)
+   a(1:1) = 'A'
+   return
+ end function test_in_bytes4
+
+ function test_inout_bytes4(a) result (i)
+   implicit none
+   integer :: sint
+   character(len=4), intent(inout) :: a
+   integer :: i
+   if (a(1:1).ne.' ') then
+     a(1:1) = 'E'
+   endif
+   i = sint(a)
+   return
+ end function test_inout_bytes4
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh24008.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh24008.f
new file mode 100644
index 0000000000000000000000000000000000000000..63afd46530848ba5cc5e7d30987e786234caf590
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh24008.f
@@ -0,0 +1,8 @@
+      SUBROUTINE GREET(NAME, GREETING)
+      CHARACTER NAME*(*), GREETING*(*)
+      CHARACTER*(50) MESSAGE
+
+      MESSAGE = 'Hello, ' // NAME // ', ' // GREETING
+c$$$      PRINT *, MESSAGE
+
+      END SUBROUTINE GREET
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh24662.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh24662.f90
new file mode 100644
index 0000000000000000000000000000000000000000..5840eba39bf37014646ca25add39ab1e486e8802
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh24662.f90
@@ -0,0 +1,7 @@
+subroutine string_inout_optional(output)
+    implicit none
+    character*(32), optional, intent(inout) :: output
+    if (present(output)) then
+      output="output string"
+    endif
+end subroutine
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286.f90
new file mode 100644
index 0000000000000000000000000000000000000000..d2a3b056fae3f04f6daf71512af11d43dd848b35
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286.f90
@@ -0,0 +1,14 @@
+subroutine charint(trans, info)
+    character, intent(in) :: trans
+    integer, intent(out) :: info
+    if (trans == 'N') then
+        info = 1
+    else if (trans == 'T') then
+        info = 2
+    else if (trans == 'C') then
+        info = 3
+    else
+        info = -1
+    end if
+
+end subroutine charint
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..40c8b62fdd4fde0a80e6cfbff9e6282167f6b341
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286.pyf
@@ -0,0 +1,12 @@
+python module _char_handling_test
+    interface
+    subroutine charint(trans, info)
+        callstatement (*f2py_func)(&trans, &info)
+        callprotoargument char*, int*
+
+        character, intent(in), check(trans=='N'||trans=='T'||trans=='C') :: trans = 'N'
+        integer intent(out) :: info
+
+    end subroutine charint
+    end interface
+end python module _char_handling_test
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286_bc.pyf b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286_bc.pyf
new file mode 100644
index 0000000000000000000000000000000000000000..e49ce2c9cfe3030a5ca83481b5bb980c847a5950
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/gh25286_bc.pyf
@@ -0,0 +1,12 @@
+python module _char_handling_test
+    interface
+    subroutine charint(trans, info)
+        callstatement (*f2py_func)(&trans, &info)
+        callprotoargument char*, int*
+
+        character, intent(in), check(*trans=='N'||*trans=='T'||*trans=='C') :: trans = 'N'
+        integer intent(out) :: info
+
+    end subroutine charint
+    end interface
+end python module _char_handling_test
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/scalar_string.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/scalar_string.f90
new file mode 100644
index 0000000000000000000000000000000000000000..a9fd8e4afb1451474d561c0b40add20cdcac51b0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/scalar_string.f90
@@ -0,0 +1,9 @@
+MODULE string_test
+
+  character(len=8) :: string
+  character string77 * 8
+
+  character(len=12), dimension(5,7) :: strarr
+  character strarr77(5,7) * 12
+
+END MODULE string_test
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/string.f b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/string.f
new file mode 100644
index 0000000000000000000000000000000000000000..f5fb3c8293d7598cc6be8f14d714fd102fa1711a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/string/string.f
@@ -0,0 +1,12 @@
+C FILE: STRING.F
+      SUBROUTINE FOO(A,B,C,D)
+      CHARACTER*5 A, B
+      CHARACTER*(*) C,D
+Cf2py intent(in) a,c
+Cf2py intent(inout) b,d
+      A(1:1) = 'A'
+      B(1:1) = 'B'
+      C(1:1) = 'C'
+      D(1:1) = 'D'
+      END
+C END OF FILE STRING.F
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/value_attrspec/gh21665.f90 b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/value_attrspec/gh21665.f90
new file mode 100644
index 0000000000000000000000000000000000000000..d8dd1beff4d2d2a07b4955afde4c5b4e27e193d9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/src/value_attrspec/gh21665.f90
@@ -0,0 +1,9 @@
+module fortfuncs
+  implicit none
+contains
+  subroutine square(x,y)
+    integer, intent(in), value :: x
+    integer, intent(out) :: y
+    y = x*x
+  end subroutine square
+end module fortfuncs
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_abstract_interface.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_abstract_interface.py
new file mode 100644
index 0000000000000000000000000000000000000000..9c959784afcf987d1ce453075a1f96938a029a00
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_abstract_interface.py
@@ -0,0 +1,26 @@
+import pytest
+
+from numpy.f2py import crackfortran
+from numpy.testing import IS_WASM
+
+from . import util
+
+
+@pytest.mark.skipif(IS_WASM, reason="Cannot start subprocess")
+@pytest.mark.slow
+class TestAbstractInterface(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "abstract_interface", "foo.f90")]
+
+    skip = ["add1", "add2"]
+
+    def test_abstract_interface(self):
+        assert self.module.ops_module.foo(3, 5) == (8, 13)
+
+    def test_parse_abstract_interface(self):
+        # Test gh18403
+        fpath = util.getpath("tests", "src", "abstract_interface",
+                             "gh18403_mod.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        assert len(mod[0]["body"]) == 1
+        assert mod[0]["body"][0]["block"] == "abstract interface"
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_array_from_pyobj.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_array_from_pyobj.py
new file mode 100644
index 0000000000000000000000000000000000000000..e92056895a07fd387a9417030c254b79e490c50f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_array_from_pyobj.py
@@ -0,0 +1,678 @@
+import copy
+import platform
+import sys
+from pathlib import Path
+
+import pytest
+
+import numpy as np
+from numpy._core._type_aliases import c_names_dict as _c_names_dict
+
+from . import util
+
+wrap = None
+
+# Extend core typeinfo with CHARACTER to test dtype('c')
+c_names_dict = dict(
+    CHARACTER=np.dtype("c"),
+    **_c_names_dict
+)
+
+
+def get_testdir():
+    testroot = Path(__file__).resolve().parent / "src"
+    return testroot / "array_from_pyobj"
+
+def setup_module():
+    """
+    Build the required testing extension module
+
+    """
+    global wrap
+
+    if wrap is None:
+        src = [
+            get_testdir() / "wrapmodule.c",
+        ]
+        wrap = util.build_meson(src, module_name="test_array_from_pyobj_ext")
+
+
+def flags_info(arr):
+    flags = wrap.array_attrs(arr)[6]
+    return flags2names(flags)
+
+
+def flags2names(flags):
+    info = []
+    for flagname in [
+            "CONTIGUOUS",
+            "FORTRAN",
+            "OWNDATA",
+            "ENSURECOPY",
+            "ENSUREARRAY",
+            "ALIGNED",
+            "NOTSWAPPED",
+            "WRITEABLE",
+            "WRITEBACKIFCOPY",
+            "UPDATEIFCOPY",
+            "BEHAVED",
+            "BEHAVED_RO",
+            "CARRAY",
+            "FARRAY",
+    ]:
+        if abs(flags) & getattr(wrap, flagname, 0):
+            info.append(flagname)
+    return info
+
+
+class Intent:
+    def __init__(self, intent_list=[]):
+        self.intent_list = intent_list[:]
+        flags = 0
+        for i in intent_list:
+            if i == "optional":
+                flags |= wrap.F2PY_OPTIONAL
+            else:
+                flags |= getattr(wrap, "F2PY_INTENT_" + i.upper())
+        self.flags = flags
+
+    def __getattr__(self, name):
+        name = name.lower()
+        if name == "in_":
+            name = "in"
+        return self.__class__(self.intent_list + [name])
+
+    def __str__(self):
+        return f"intent({','.join(self.intent_list)})"
+
+    def __repr__(self):
+        return f"Intent({self.intent_list!r})"
+
+    def is_intent(self, *names):
+        return all(name in self.intent_list for name in names)
+
+    def is_intent_exact(self, *names):
+        return len(self.intent_list) == len(names) and self.is_intent(*names)
+
+
+intent = Intent()
+
+_type_names = [
+    "BOOL",
+    "BYTE",
+    "UBYTE",
+    "SHORT",
+    "USHORT",
+    "INT",
+    "UINT",
+    "LONG",
+    "ULONG",
+    "LONGLONG",
+    "ULONGLONG",
+    "FLOAT",
+    "DOUBLE",
+    "CFLOAT",
+    "STRING1",
+    "STRING5",
+    "CHARACTER",
+]
+
+_cast_dict = {"BOOL": ["BOOL"]}
+_cast_dict["BYTE"] = _cast_dict["BOOL"] + ["BYTE"]
+_cast_dict["UBYTE"] = _cast_dict["BOOL"] + ["UBYTE"]
+_cast_dict["BYTE"] = ["BYTE"]
+_cast_dict["UBYTE"] = ["UBYTE"]
+_cast_dict["SHORT"] = _cast_dict["BYTE"] + ["UBYTE", "SHORT"]
+_cast_dict["USHORT"] = _cast_dict["UBYTE"] + ["BYTE", "USHORT"]
+_cast_dict["INT"] = _cast_dict["SHORT"] + ["USHORT", "INT"]
+_cast_dict["UINT"] = _cast_dict["USHORT"] + ["SHORT", "UINT"]
+
+_cast_dict["LONG"] = _cast_dict["INT"] + ["LONG"]
+_cast_dict["ULONG"] = _cast_dict["UINT"] + ["ULONG"]
+
+_cast_dict["LONGLONG"] = _cast_dict["LONG"] + ["LONGLONG"]
+_cast_dict["ULONGLONG"] = _cast_dict["ULONG"] + ["ULONGLONG"]
+
+_cast_dict["FLOAT"] = _cast_dict["SHORT"] + ["USHORT", "FLOAT"]
+_cast_dict["DOUBLE"] = _cast_dict["INT"] + ["UINT", "FLOAT", "DOUBLE"]
+
+_cast_dict["CFLOAT"] = _cast_dict["FLOAT"] + ["CFLOAT"]
+
+_cast_dict['STRING1'] = ['STRING1']
+_cast_dict['STRING5'] = ['STRING5']
+_cast_dict['CHARACTER'] = ['CHARACTER']
+
+# 32 bit system malloc typically does not provide the alignment required by
+# 16 byte long double types this means the inout intent cannot be satisfied
+# and several tests fail as the alignment flag can be randomly true or false
+# when numpy gains an aligned allocator the tests could be enabled again
+#
+# Furthermore, on macOS ARM64 and AIX, LONGDOUBLE is an alias for DOUBLE.
+if ((np.intp().dtype.itemsize != 4 or np.clongdouble().dtype.alignment <= 8)
+        and sys.platform not in ["win32", "aix"]
+        and (platform.system(), platform.processor()) != ("Darwin", "arm")):
+    _type_names.extend(["LONGDOUBLE", "CDOUBLE", "CLONGDOUBLE"])
+    _cast_dict["LONGDOUBLE"] = _cast_dict["LONG"] + [
+        "ULONG",
+        "FLOAT",
+        "DOUBLE",
+        "LONGDOUBLE",
+    ]
+    _cast_dict["CLONGDOUBLE"] = _cast_dict["LONGDOUBLE"] + [
+        "CFLOAT",
+        "CDOUBLE",
+        "CLONGDOUBLE",
+    ]
+    _cast_dict["CDOUBLE"] = _cast_dict["DOUBLE"] + ["CFLOAT", "CDOUBLE"]
+
+
+class Type:
+    _type_cache = {}
+
+    def __new__(cls, name):
+        if isinstance(name, np.dtype):
+            dtype0 = name
+            name = None
+            for n, i in c_names_dict.items():
+                if not isinstance(i, type) and dtype0.type is i.type:
+                    name = n
+                    break
+        obj = cls._type_cache.get(name.upper(), None)
+        if obj is not None:
+            return obj
+        obj = object.__new__(cls)
+        obj._init(name)
+        cls._type_cache[name.upper()] = obj
+        return obj
+
+    def _init(self, name):
+        self.NAME = name.upper()
+
+        if self.NAME == 'CHARACTER':
+            info = c_names_dict[self.NAME]
+            self.type_num = wrap.NPY_STRING
+            self.elsize = 1
+            self.dtype = np.dtype('c')
+        elif self.NAME.startswith('STRING'):
+            info = c_names_dict[self.NAME[:6]]
+            self.type_num = wrap.NPY_STRING
+            self.elsize = int(self.NAME[6:] or 0)
+            self.dtype = np.dtype(f'S{self.elsize}')
+        else:
+            info = c_names_dict[self.NAME]
+            self.type_num = getattr(wrap, 'NPY_' + self.NAME)
+            self.elsize = info.itemsize
+            self.dtype = np.dtype(info.type)
+
+        assert self.type_num == info.num
+        self.type = info.type
+        self.dtypechar = info.char
+
+    def __repr__(self):
+        return (f"Type({self.NAME})|type_num={self.type_num},"
+                f" dtype={self.dtype},"
+                f" type={self.type}, elsize={self.elsize},"
+                f" dtypechar={self.dtypechar}")
+
+    def cast_types(self):
+        return [self.__class__(_m) for _m in _cast_dict[self.NAME]]
+
+    def all_types(self):
+        return [self.__class__(_m) for _m in _type_names]
+
+    def smaller_types(self):
+        bits = c_names_dict[self.NAME].alignment
+        types = []
+        for name in _type_names:
+            if c_names_dict[name].alignment < bits:
+                types.append(Type(name))
+        return types
+
+    def equal_types(self):
+        bits = c_names_dict[self.NAME].alignment
+        types = []
+        for name in _type_names:
+            if name == self.NAME:
+                continue
+            if c_names_dict[name].alignment == bits:
+                types.append(Type(name))
+        return types
+
+    def larger_types(self):
+        bits = c_names_dict[self.NAME].alignment
+        types = []
+        for name in _type_names:
+            if c_names_dict[name].alignment > bits:
+                types.append(Type(name))
+        return types
+
+
+class Array:
+
+    def __repr__(self):
+        return (f'Array({self.type}, {self.dims}, {self.intent},'
+                f' {self.obj})|arr={self.arr}')
+
+    def __init__(self, typ, dims, intent, obj):
+        self.type = typ
+        self.dims = dims
+        self.intent = intent
+        self.obj_copy = copy.deepcopy(obj)
+        self.obj = obj
+
+        # arr.dtypechar may be different from typ.dtypechar
+        self.arr = wrap.call(typ.type_num,
+                             typ.elsize,
+                             dims, intent.flags, obj)
+
+        assert isinstance(self.arr, np.ndarray)
+
+        self.arr_attr = wrap.array_attrs(self.arr)
+
+        if len(dims) > 1:
+            if self.intent.is_intent("c"):
+                assert (intent.flags & wrap.F2PY_INTENT_C)
+                assert not self.arr.flags["FORTRAN"]
+                assert self.arr.flags["CONTIGUOUS"]
+                assert (not self.arr_attr[6] & wrap.FORTRAN)
+            else:
+                assert (not intent.flags & wrap.F2PY_INTENT_C)
+                assert self.arr.flags["FORTRAN"]
+                assert not self.arr.flags["CONTIGUOUS"]
+                assert (self.arr_attr[6] & wrap.FORTRAN)
+
+        if obj is None:
+            self.pyarr = None
+            self.pyarr_attr = None
+            return
+
+        if intent.is_intent("cache"):
+            assert isinstance(obj, np.ndarray), repr(type(obj))
+            self.pyarr = np.array(obj).reshape(*dims).copy()
+        else:
+            self.pyarr = np.array(
+                np.array(obj, dtype=typ.dtypechar).reshape(*dims),
+                order=(self.intent.is_intent("c") and "C") or "F",
+            )
+            assert self.pyarr.dtype == typ
+        self.pyarr.setflags(write=self.arr.flags["WRITEABLE"])
+        assert self.pyarr.flags["OWNDATA"], (obj, intent)
+        self.pyarr_attr = wrap.array_attrs(self.pyarr)
+
+        if len(dims) > 1:
+            if self.intent.is_intent("c"):
+                assert not self.pyarr.flags["FORTRAN"]
+                assert self.pyarr.flags["CONTIGUOUS"]
+                assert (not self.pyarr_attr[6] & wrap.FORTRAN)
+            else:
+                assert self.pyarr.flags["FORTRAN"]
+                assert not self.pyarr.flags["CONTIGUOUS"]
+                assert (self.pyarr_attr[6] & wrap.FORTRAN)
+
+        assert self.arr_attr[1] == self.pyarr_attr[1]  # nd
+        assert self.arr_attr[2] == self.pyarr_attr[2]  # dimensions
+        if self.arr_attr[1] <= 1:
+            assert self.arr_attr[3] == self.pyarr_attr[3], repr((
+                self.arr_attr[3],
+                self.pyarr_attr[3],
+                self.arr.tobytes(),
+                self.pyarr.tobytes(),
+            ))  # strides
+        assert self.arr_attr[5][-2:] == self.pyarr_attr[5][-2:], repr((
+            self.arr_attr[5], self.pyarr_attr[5]
+            ))  # descr
+        assert self.arr_attr[6] == self.pyarr_attr[6], repr((
+            self.arr_attr[6],
+            self.pyarr_attr[6],
+            flags2names(0 * self.arr_attr[6] - self.pyarr_attr[6]),
+            flags2names(self.arr_attr[6]),
+            intent,
+        ))  # flags
+
+        if intent.is_intent("cache"):
+            assert self.arr_attr[5][3] >= self.type.elsize
+        else:
+            assert self.arr_attr[5][3] == self.type.elsize
+            assert (self.arr_equal(self.pyarr, self.arr))
+
+        if isinstance(self.obj, np.ndarray):
+            if typ.elsize == Type(obj.dtype).elsize:
+                if not intent.is_intent("copy") and self.arr_attr[1] <= 1:
+                    assert self.has_shared_memory()
+
+    def arr_equal(self, arr1, arr2):
+        if arr1.shape != arr2.shape:
+            return False
+        return (arr1 == arr2).all()
+
+    def __str__(self):
+        return str(self.arr)
+
+    def has_shared_memory(self):
+        """Check that created array shares data with input array."""
+        if self.obj is self.arr:
+            return True
+        if not isinstance(self.obj, np.ndarray):
+            return False
+        obj_attr = wrap.array_attrs(self.obj)
+        return obj_attr[0] == self.arr_attr[0]
+
+
+class TestIntent:
+    def test_in_out(self):
+        assert str(intent.in_.out) == "intent(in,out)"
+        assert intent.in_.c.is_intent("c")
+        assert not intent.in_.c.is_intent_exact("c")
+        assert intent.in_.c.is_intent_exact("c", "in")
+        assert intent.in_.c.is_intent_exact("in", "c")
+        assert not intent.in_.is_intent("c")
+
+
+class TestSharedMemory:
+
+    @pytest.fixture(autouse=True, scope="class", params=_type_names)
+    def setup_type(self, request):
+        request.cls.type = Type(request.param)
+        request.cls.array = lambda self, dims, intent, obj: Array(
+            Type(request.param), dims, intent, obj)
+
+    @property
+    def num2seq(self):
+        if self.type.NAME.startswith('STRING'):
+            elsize = self.type.elsize
+            return ['1' * elsize, '2' * elsize]
+        return [1, 2]
+
+    @property
+    def num23seq(self):
+        if self.type.NAME.startswith('STRING'):
+            elsize = self.type.elsize
+            return [['1' * elsize, '2' * elsize, '3' * elsize],
+                    ['4' * elsize, '5' * elsize, '6' * elsize]]
+        return [[1, 2, 3], [4, 5, 6]]
+
+    def test_in_from_2seq(self):
+        a = self.array([2], intent.in_, self.num2seq)
+        assert not a.has_shared_memory()
+
+    def test_in_from_2casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num2seq, dtype=t.dtype)
+            a = self.array([len(self.num2seq)], intent.in_, obj)
+            if t.elsize == self.type.elsize:
+                assert a.has_shared_memory(), repr((self.type.dtype, t.dtype))
+            else:
+                assert not a.has_shared_memory()
+
+    @pytest.mark.parametrize("write", ["w", "ro"])
+    @pytest.mark.parametrize("order", ["C", "F"])
+    @pytest.mark.parametrize("inp", ["2seq", "23seq"])
+    def test_in_nocopy(self, write, order, inp):
+        """Test if intent(in) array can be passed without copies"""
+        seq = getattr(self, "num" + inp)
+        obj = np.array(seq, dtype=self.type.dtype, order=order)
+        obj.setflags(write=(write == 'w'))
+        a = self.array(obj.shape,
+                       ((order == 'C' and intent.in_.c) or intent.in_), obj)
+        assert a.has_shared_memory()
+
+    def test_inout_2seq(self):
+        obj = np.array(self.num2seq, dtype=self.type.dtype)
+        a = self.array([len(self.num2seq)], intent.inout, obj)
+        assert a.has_shared_memory()
+
+        try:
+            a = self.array([2], intent.in_.inout, self.num2seq)
+        except TypeError as msg:
+            if not str(msg).startswith(
+                    "failed to initialize intent(inout|inplace|cache) array"):
+                raise
+        else:
+            raise SystemError("intent(inout) should have failed on sequence")
+
+    def test_f_inout_23seq(self):
+        obj = np.array(self.num23seq, dtype=self.type.dtype, order="F")
+        shape = (len(self.num23seq), len(self.num23seq[0]))
+        a = self.array(shape, intent.in_.inout, obj)
+        assert a.has_shared_memory()
+
+        obj = np.array(self.num23seq, dtype=self.type.dtype, order="C")
+        shape = (len(self.num23seq), len(self.num23seq[0]))
+        try:
+            a = self.array(shape, intent.in_.inout, obj)
+        except ValueError as msg:
+            if not str(msg).startswith(
+                    "failed to initialize intent(inout) array"):
+                raise
+        else:
+            raise SystemError(
+                "intent(inout) should have failed on improper array")
+
+    def test_c_inout_23seq(self):
+        obj = np.array(self.num23seq, dtype=self.type.dtype)
+        shape = (len(self.num23seq), len(self.num23seq[0]))
+        a = self.array(shape, intent.in_.c.inout, obj)
+        assert a.has_shared_memory()
+
+    def test_in_copy_from_2casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num2seq, dtype=t.dtype)
+            a = self.array([len(self.num2seq)], intent.in_.copy, obj)
+            assert not a.has_shared_memory()
+
+    def test_c_in_from_23seq(self):
+        a = self.array(
+            [len(self.num23seq), len(self.num23seq[0])], intent.in_,
+            self.num23seq)
+        assert not a.has_shared_memory()
+
+    def test_in_from_23casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num23seq, dtype=t.dtype)
+            a = self.array(
+                [len(self.num23seq), len(self.num23seq[0])], intent.in_, obj)
+            assert not a.has_shared_memory()
+
+    def test_f_in_from_23casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num23seq, dtype=t.dtype, order="F")
+            a = self.array(
+                [len(self.num23seq), len(self.num23seq[0])], intent.in_, obj)
+            if t.elsize == self.type.elsize:
+                assert a.has_shared_memory()
+            else:
+                assert not a.has_shared_memory()
+
+    def test_c_in_from_23casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num23seq, dtype=t.dtype)
+            a = self.array(
+                [len(self.num23seq), len(self.num23seq[0])], intent.in_.c, obj)
+            if t.elsize == self.type.elsize:
+                assert a.has_shared_memory()
+            else:
+                assert not a.has_shared_memory()
+
+    def test_f_copy_in_from_23casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num23seq, dtype=t.dtype, order="F")
+            a = self.array(
+                [len(self.num23seq), len(self.num23seq[0])], intent.in_.copy,
+                obj)
+            assert not a.has_shared_memory()
+
+    def test_c_copy_in_from_23casttype(self):
+        for t in self.type.cast_types():
+            obj = np.array(self.num23seq, dtype=t.dtype)
+            a = self.array(
+                [len(self.num23seq), len(self.num23seq[0])], intent.in_.c.copy,
+                obj)
+            assert not a.has_shared_memory()
+
+    def test_in_cache_from_2casttype(self):
+        for t in self.type.all_types():
+            if t.elsize != self.type.elsize:
+                continue
+            obj = np.array(self.num2seq, dtype=t.dtype)
+            shape = (len(self.num2seq), )
+            a = self.array(shape, intent.in_.c.cache, obj)
+            assert a.has_shared_memory()
+
+            a = self.array(shape, intent.in_.cache, obj)
+            assert a.has_shared_memory()
+
+            obj = np.array(self.num2seq, dtype=t.dtype, order="F")
+            a = self.array(shape, intent.in_.c.cache, obj)
+            assert a.has_shared_memory()
+
+            a = self.array(shape, intent.in_.cache, obj)
+            assert a.has_shared_memory(), repr(t.dtype)
+
+            try:
+                a = self.array(shape, intent.in_.cache, obj[::-1])
+            except ValueError as msg:
+                if not str(msg).startswith(
+                        "failed to initialize intent(cache) array"):
+                    raise
+            else:
+                raise SystemError(
+                    "intent(cache) should have failed on multisegmented array")
+
+    def test_in_cache_from_2casttype_failure(self):
+        for t in self.type.all_types():
+            if t.NAME == 'STRING':
+                # string elsize is 0, so skipping the test
+                continue
+            if t.elsize >= self.type.elsize:
+                continue
+            is_int = np.issubdtype(t.dtype, np.integer)
+            if is_int and int(self.num2seq[0]) > np.iinfo(t.dtype).max:
+                # skip test if num2seq would trigger an overflow error
+                continue
+            obj = np.array(self.num2seq, dtype=t.dtype)
+            shape = (len(self.num2seq), )
+            try:
+                self.array(shape, intent.in_.cache, obj)  # Should succeed
+            except ValueError as msg:
+                if not str(msg).startswith(
+                        "failed to initialize intent(cache) array"):
+                    raise
+            else:
+                raise SystemError(
+                    "intent(cache) should have failed on smaller array")
+
+    def test_cache_hidden(self):
+        shape = (2, )
+        a = self.array(shape, intent.cache.hide, None)
+        assert a.arr.shape == shape
+
+        shape = (2, 3)
+        a = self.array(shape, intent.cache.hide, None)
+        assert a.arr.shape == shape
+
+        shape = (-1, 3)
+        try:
+            a = self.array(shape, intent.cache.hide, None)
+        except ValueError as msg:
+            if not str(msg).startswith(
+                    "failed to create intent(cache|hide)|optional array"):
+                raise
+        else:
+            raise SystemError(
+                "intent(cache) should have failed on undefined dimensions")
+
+    def test_hidden(self):
+        shape = (2, )
+        a = self.array(shape, intent.hide, None)
+        assert a.arr.shape == shape
+        assert a.arr_equal(a.arr, np.zeros(shape, dtype=self.type.dtype))
+
+        shape = (2, 3)
+        a = self.array(shape, intent.hide, None)
+        assert a.arr.shape == shape
+        assert a.arr_equal(a.arr, np.zeros(shape, dtype=self.type.dtype))
+        assert a.arr.flags["FORTRAN"] and not a.arr.flags["CONTIGUOUS"]
+
+        shape = (2, 3)
+        a = self.array(shape, intent.c.hide, None)
+        assert a.arr.shape == shape
+        assert a.arr_equal(a.arr, np.zeros(shape, dtype=self.type.dtype))
+        assert not a.arr.flags["FORTRAN"] and a.arr.flags["CONTIGUOUS"]
+
+        shape = (-1, 3)
+        try:
+            a = self.array(shape, intent.hide, None)
+        except ValueError as msg:
+            if not str(msg).startswith(
+                    "failed to create intent(cache|hide)|optional array"):
+                raise
+        else:
+            raise SystemError(
+                "intent(hide) should have failed on undefined dimensions")
+
+    def test_optional_none(self):
+        shape = (2, )
+        a = self.array(shape, intent.optional, None)
+        assert a.arr.shape == shape
+        assert a.arr_equal(a.arr, np.zeros(shape, dtype=self.type.dtype))
+
+        shape = (2, 3)
+        a = self.array(shape, intent.optional, None)
+        assert a.arr.shape == shape
+        assert a.arr_equal(a.arr, np.zeros(shape, dtype=self.type.dtype))
+        assert a.arr.flags["FORTRAN"] and not a.arr.flags["CONTIGUOUS"]
+
+        shape = (2, 3)
+        a = self.array(shape, intent.c.optional, None)
+        assert a.arr.shape == shape
+        assert a.arr_equal(a.arr, np.zeros(shape, dtype=self.type.dtype))
+        assert not a.arr.flags["FORTRAN"] and a.arr.flags["CONTIGUOUS"]
+
+    def test_optional_from_2seq(self):
+        obj = self.num2seq
+        shape = (len(obj), )
+        a = self.array(shape, intent.optional, obj)
+        assert a.arr.shape == shape
+        assert not a.has_shared_memory()
+
+    def test_optional_from_23seq(self):
+        obj = self.num23seq
+        shape = (len(obj), len(obj[0]))
+        a = self.array(shape, intent.optional, obj)
+        assert a.arr.shape == shape
+        assert not a.has_shared_memory()
+
+        a = self.array(shape, intent.optional.c, obj)
+        assert a.arr.shape == shape
+        assert not a.has_shared_memory()
+
+    def test_inplace(self):
+        obj = np.array(self.num23seq, dtype=self.type.dtype)
+        assert not obj.flags["FORTRAN"] and obj.flags["CONTIGUOUS"]
+        shape = obj.shape
+        a = self.array(shape, intent.inplace, obj)
+        assert obj[1][2] == a.arr[1][2], repr((obj, a.arr))
+        a.arr[1][2] = 54
+        assert obj[1][2] == a.arr[1][2] == np.array(54, dtype=self.type.dtype)
+        assert a.arr is obj
+        assert obj.flags["FORTRAN"]  # obj attributes are changed inplace!
+        assert not obj.flags["CONTIGUOUS"]
+
+    def test_inplace_from_casttype(self):
+        for t in self.type.cast_types():
+            if t is self.type:
+                continue
+            obj = np.array(self.num23seq, dtype=t.dtype)
+            assert obj.dtype.type == t.type
+            assert obj.dtype.type is not self.type.type
+            assert not obj.flags["FORTRAN"] and obj.flags["CONTIGUOUS"]
+            shape = obj.shape
+            a = self.array(shape, intent.inplace, obj)
+            assert obj[1][2] == a.arr[1][2], repr((obj, a.arr))
+            a.arr[1][2] = 54
+            assert obj[1][2] == a.arr[1][2] == np.array(54,
+                                                        dtype=self.type.dtype)
+            assert a.arr is obj
+            assert obj.flags["FORTRAN"]  # obj attributes changed inplace!
+            assert not obj.flags["CONTIGUOUS"]
+            assert obj.dtype.type is self.type.type  # obj changed inplace!
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_assumed_shape.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_assumed_shape.py
new file mode 100644
index 0000000000000000000000000000000000000000..cc1d18de343ea881e5ad7ede177730197ff0ac48
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_assumed_shape.py
@@ -0,0 +1,50 @@
+import os
+import tempfile
+
+import pytest
+
+from . import util
+
+
+class TestAssumedShapeSumExample(util.F2PyTest):
+    sources = [
+        util.getpath("tests", "src", "assumed_shape", "foo_free.f90"),
+        util.getpath("tests", "src", "assumed_shape", "foo_use.f90"),
+        util.getpath("tests", "src", "assumed_shape", "precision.f90"),
+        util.getpath("tests", "src", "assumed_shape", "foo_mod.f90"),
+        util.getpath("tests", "src", "assumed_shape", ".f2py_f2cmap"),
+    ]
+
+    @pytest.mark.slow
+    def test_all(self):
+        r = self.module.fsum([1, 2])
+        assert r == 3
+        r = self.module.sum([1, 2])
+        assert r == 3
+        r = self.module.sum_with_use([1, 2])
+        assert r == 3
+
+        r = self.module.mod.sum([1, 2])
+        assert r == 3
+        r = self.module.mod.fsum([1, 2])
+        assert r == 3
+
+
+class TestF2cmapOption(TestAssumedShapeSumExample):
+    def setup_method(self):
+        # Use a custom file name for .f2py_f2cmap
+        self.sources = list(self.sources)
+        f2cmap_src = self.sources.pop(-1)
+
+        self.f2cmap_file = tempfile.NamedTemporaryFile(delete=False)
+        with open(f2cmap_src, "rb") as f:
+            self.f2cmap_file.write(f.read())
+        self.f2cmap_file.close()
+
+        self.sources.append(self.f2cmap_file.name)
+        self.options = ["--f2cmap", self.f2cmap_file.name]
+
+        super().setup_method()
+
+    def teardown_method(self):
+        os.unlink(self.f2cmap_file.name)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_block_docstring.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_block_docstring.py
new file mode 100644
index 0000000000000000000000000000000000000000..8929ae1465ade9fb5897b0ab46e34f71e55d4438
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_block_docstring.py
@@ -0,0 +1,20 @@
+import sys
+
+import pytest
+
+from numpy.testing import IS_PYPY
+
+from . import util
+
+
+@pytest.mark.slow
+class TestBlockDocString(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "block_docstring", "foo.f")]
+
+    @pytest.mark.skipif(sys.platform == "win32",
+                        reason="Fails with MinGW64 Gfortran (Issue #9673)")
+    @pytest.mark.xfail(IS_PYPY,
+                       reason="PyPy cannot modify tp_doc after PyType_Ready")
+    def test_block_docstring(self):
+        expected = "bar : 'i'-array(2,3)\n"
+        assert self.module.block.__doc__ == expected
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_callback.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_callback.py
new file mode 100644
index 0000000000000000000000000000000000000000..c3555d6b2ec1fa4dc4f0a9c91faf92021212e43d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_callback.py
@@ -0,0 +1,263 @@
+import math
+import platform
+import sys
+import textwrap
+import threading
+import time
+import traceback
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_PYPY
+
+from . import util
+
+
+class TestF77Callback(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "callback", "foo.f")]
+
+    @pytest.mark.parametrize("name", ["t", "t2"])
+    @pytest.mark.slow
+    def test_all(self, name):
+        self.check_function(name)
+
+    @pytest.mark.xfail(IS_PYPY,
+                       reason="PyPy cannot modify tp_doc after PyType_Ready")
+    def test_docstring(self):
+        expected = textwrap.dedent("""\
+        a = t(fun,[fun_extra_args])
+
+        Wrapper for ``t``.
+
+        Parameters
+        ----------
+        fun : call-back function
+
+        Other Parameters
+        ----------------
+        fun_extra_args : input tuple, optional
+            Default: ()
+
+        Returns
+        -------
+        a : int
+
+        Notes
+        -----
+        Call-back functions::
+
+            def fun(): return a
+            Return objects:
+                a : int
+        """)
+        assert self.module.t.__doc__ == expected
+
+    def check_function(self, name):
+        t = getattr(self.module, name)
+        r = t(lambda: 4)
+        assert r == 4
+        r = t(lambda a: 5, fun_extra_args=(6, ))
+        assert r == 5
+        r = t(lambda a: a, fun_extra_args=(6, ))
+        assert r == 6
+        r = t(lambda a: 5 + a, fun_extra_args=(7, ))
+        assert r == 12
+        r = t(math.degrees, fun_extra_args=(math.pi, ))
+        assert r == 180
+        r = t(math.degrees, fun_extra_args=(math.pi, ))
+        assert r == 180
+
+        r = t(self.module.func, fun_extra_args=(6, ))
+        assert r == 17
+        r = t(self.module.func0)
+        assert r == 11
+        r = t(self.module.func0._cpointer)
+        assert r == 11
+
+        class A:
+            def __call__(self):
+                return 7
+
+            def mth(self):
+                return 9
+
+        a = A()
+        r = t(a)
+        assert r == 7
+        r = t(a.mth)
+        assert r == 9
+
+    @pytest.mark.skipif(sys.platform == 'win32',
+                        reason='Fails with MinGW64 Gfortran (Issue #9673)')
+    def test_string_callback(self):
+        def callback(code):
+            if code == "r":
+                return 0
+            else:
+                return 1
+
+        f = self.module.string_callback
+        r = f(callback)
+        assert r == 0
+
+    @pytest.mark.skipif(sys.platform == 'win32',
+                        reason='Fails with MinGW64 Gfortran (Issue #9673)')
+    def test_string_callback_array(self):
+        # See gh-10027
+        cu1 = np.zeros((1, ), "S8")
+        cu2 = np.zeros((1, 8), "c")
+        cu3 = np.array([""], "S8")
+
+        def callback(cu, lencu):
+            if cu.shape != (lencu,):
+                return 1
+            if cu.dtype != "S8":
+                return 2
+            if not np.all(cu == b""):
+                return 3
+            return 0
+
+        f = self.module.string_callback_array
+        for cu in [cu1, cu2, cu3]:
+            res = f(callback, cu, cu.size)
+            assert res == 0
+
+    def test_threadsafety(self):
+        # Segfaults if the callback handling is not threadsafe
+
+        errors = []
+
+        def cb():
+            # Sleep here to make it more likely for another thread
+            # to call their callback at the same time.
+            time.sleep(1e-3)
+
+            # Check reentrancy
+            r = self.module.t(lambda: 123)
+            assert r == 123
+
+            return 42
+
+        def runner(name):
+            try:
+                for j in range(50):
+                    r = self.module.t(cb)
+                    assert r == 42
+                    self.check_function(name)
+            except Exception:
+                errors.append(traceback.format_exc())
+
+        threads = [
+            threading.Thread(target=runner, args=(arg, ))
+            for arg in ("t", "t2") for n in range(20)
+        ]
+
+        for t in threads:
+            t.start()
+
+        for t in threads:
+            t.join()
+
+        errors = "\n\n".join(errors)
+        if errors:
+            raise AssertionError(errors)
+
+    def test_hidden_callback(self):
+        try:
+            self.module.hidden_callback(2)
+        except Exception as msg:
+            assert str(msg).startswith("Callback global_f not defined")
+
+        try:
+            self.module.hidden_callback2(2)
+        except Exception as msg:
+            assert str(msg).startswith("cb: Callback global_f not defined")
+
+        self.module.global_f = lambda x: x + 1
+        r = self.module.hidden_callback(2)
+        assert r == 3
+
+        self.module.global_f = lambda x: x + 2
+        r = self.module.hidden_callback(2)
+        assert r == 4
+
+        del self.module.global_f
+        try:
+            self.module.hidden_callback(2)
+        except Exception as msg:
+            assert str(msg).startswith("Callback global_f not defined")
+
+        self.module.global_f = lambda x=0: x + 3
+        r = self.module.hidden_callback(2)
+        assert r == 5
+
+        # reproducer of gh18341
+        r = self.module.hidden_callback2(2)
+        assert r == 3
+
+
+class TestF77CallbackPythonTLS(TestF77Callback):
+    """
+    Callback tests using Python thread-local storage instead of
+    compiler-provided
+    """
+
+    options = ["-DF2PY_USE_PYTHON_TLS"]
+
+
+class TestF90Callback(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "callback", "gh17797.f90")]
+
+    @pytest.mark.slow
+    def test_gh17797(self):
+        def incr(x):
+            return x + 123
+
+        y = np.array([1, 2, 3], dtype=np.int64)
+        r = self.module.gh17797(incr, y)
+        assert r == 123 + 1 + 2 + 3
+
+
+class TestGH18335(util.F2PyTest):
+    """The reproduction of the reported issue requires specific input that
+    extensions may break the issue conditions, so the reproducer is
+    implemented as a separate test class. Do not extend this test with
+    other tests!
+    """
+    sources = [util.getpath("tests", "src", "callback", "gh18335.f90")]
+
+    @pytest.mark.slow
+    def test_gh18335(self):
+        def foo(x):
+            x[0] += 1
+
+        r = self.module.gh18335(foo)
+        assert r == 123 + 1
+
+
+class TestGH25211(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "callback", "gh25211.f"),
+               util.getpath("tests", "src", "callback", "gh25211.pyf")]
+    module_name = "callback2"
+
+    def test_gh25211(self):
+        def bar(x):
+            return x * x
+
+        res = self.module.foo(bar)
+        assert res == 110
+
+
+@pytest.mark.slow
+@pytest.mark.xfail(condition=(platform.system().lower() == 'darwin'),
+                   run=False,
+                   reason="Callback aborts cause CI failures on macOS")
+class TestCBFortranCallstatement(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "callback", "gh26681.f90")]
+    options = ['--lower']
+
+    def test_callstatement_fortran(self):
+        with pytest.raises(ValueError, match='helpme') as exc:
+            self.module.mypy_abort = self.module.utils.my_abort
+            self.module.utils.do_something('helpme')
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_character.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_character.py
new file mode 100644
index 0000000000000000000000000000000000000000..b973b764f2174ead7a8eac92170455085914d87e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_character.py
@@ -0,0 +1,641 @@
+import textwrap
+
+import pytest
+
+import numpy as np
+from numpy.f2py.tests import util
+from numpy.testing import assert_array_equal, assert_equal, assert_raises
+
+
+@pytest.mark.slow
+class TestCharacterString(util.F2PyTest):
+    # options = ['--debug-capi', '--build-dir', '/tmp/test-build-f2py']
+    suffix = '.f90'
+    fprefix = 'test_character_string'
+    length_list = ['1', '3', 'star']
+
+    code = ''
+    for length in length_list:
+        fsuffix = length
+        clength = {'star': '(*)'}.get(length, length)
+
+        code += textwrap.dedent(f"""
+
+        subroutine {fprefix}_input_{fsuffix}(c, o, n)
+          character*{clength}, intent(in) :: c
+          integer n
+          !f2py integer, depend(c), intent(hide) :: n = slen(c)
+          integer*1, dimension(n) :: o
+          !f2py intent(out) o
+          o = transfer(c, o)
+        end subroutine {fprefix}_input_{fsuffix}
+
+        subroutine {fprefix}_output_{fsuffix}(c, o, n)
+          character*{clength}, intent(out) :: c
+          integer n
+          integer*1, dimension(n), intent(in) :: o
+          !f2py integer, depend(o), intent(hide) :: n = len(o)
+          c = transfer(o, c)
+        end subroutine {fprefix}_output_{fsuffix}
+
+        subroutine {fprefix}_array_input_{fsuffix}(c, o, m, n)
+          integer m, i, n
+          character*{clength}, intent(in), dimension(m) :: c
+          !f2py integer, depend(c), intent(hide) :: m = len(c)
+          !f2py integer, depend(c), intent(hide) :: n = f2py_itemsize(c)
+          integer*1, dimension(m, n), intent(out) :: o
+          do i=1,m
+            o(i, :) = transfer(c(i), o(i, :))
+          end do
+        end subroutine {fprefix}_array_input_{fsuffix}
+
+        subroutine {fprefix}_array_output_{fsuffix}(c, o, m, n)
+          character*{clength}, intent(out), dimension(m) :: c
+          integer n
+          integer*1, dimension(m, n), intent(in) :: o
+          !f2py character(f2py_len=n) :: c
+          !f2py integer, depend(o), intent(hide) :: m = len(o)
+          !f2py integer, depend(o), intent(hide) :: n = shape(o, 1)
+          do i=1,m
+            c(i) = transfer(o(i, :), c(i))
+          end do
+        end subroutine {fprefix}_array_output_{fsuffix}
+
+        subroutine {fprefix}_2d_array_input_{fsuffix}(c, o, m1, m2, n)
+          integer m1, m2, i, j, n
+          character*{clength}, intent(in), dimension(m1, m2) :: c
+          !f2py integer, depend(c), intent(hide) :: m1 = len(c)
+          !f2py integer, depend(c), intent(hide) :: m2 = shape(c, 1)
+          !f2py integer, depend(c), intent(hide) :: n = f2py_itemsize(c)
+          integer*1, dimension(m1, m2, n), intent(out) :: o
+          do i=1,m1
+            do j=1,m2
+              o(i, j, :) = transfer(c(i, j), o(i, j, :))
+            end do
+          end do
+        end subroutine {fprefix}_2d_array_input_{fsuffix}
+        """)
+
+    @pytest.mark.parametrize("length", length_list)
+    def test_input(self, length):
+        fsuffix = {'(*)': 'star'}.get(length, length)
+        f = getattr(self.module, self.fprefix + '_input_' + fsuffix)
+
+        a = {'1': 'a', '3': 'abc', 'star': 'abcde' * 3}[length]
+
+        assert_array_equal(f(a), np.array(list(map(ord, a)), dtype='u1'))
+
+    @pytest.mark.parametrize("length", length_list[:-1])
+    def test_output(self, length):
+        fsuffix = length
+        f = getattr(self.module, self.fprefix + '_output_' + fsuffix)
+
+        a = {'1': 'a', '3': 'abc'}[length]
+
+        assert_array_equal(f(np.array(list(map(ord, a)), dtype='u1')),
+                           a.encode())
+
+    @pytest.mark.parametrize("length", length_list)
+    def test_array_input(self, length):
+        fsuffix = length
+        f = getattr(self.module, self.fprefix + '_array_input_' + fsuffix)
+
+        a = np.array([{'1': 'a', '3': 'abc', 'star': 'abcde' * 3}[length],
+                      {'1': 'A', '3': 'ABC', 'star': 'ABCDE' * 3}[length],
+                      ], dtype='S')
+
+        expected = np.array([list(s) for s in a], dtype='u1')
+        assert_array_equal(f(a), expected)
+
+    @pytest.mark.parametrize("length", length_list)
+    def test_array_output(self, length):
+        fsuffix = length
+        f = getattr(self.module, self.fprefix + '_array_output_' + fsuffix)
+
+        expected = np.array(
+            [{'1': 'a', '3': 'abc', 'star': 'abcde' * 3}[length],
+             {'1': 'A', '3': 'ABC', 'star': 'ABCDE' * 3}[length]], dtype='S')
+
+        a = np.array([list(s) for s in expected], dtype='u1')
+        assert_array_equal(f(a), expected)
+
+    @pytest.mark.parametrize("length", length_list)
+    def test_2d_array_input(self, length):
+        fsuffix = length
+        f = getattr(self.module, self.fprefix + '_2d_array_input_' + fsuffix)
+
+        a = np.array([[{'1': 'a', '3': 'abc', 'star': 'abcde' * 3}[length],
+                       {'1': 'A', '3': 'ABC', 'star': 'ABCDE' * 3}[length]],
+                      [{'1': 'f', '3': 'fgh', 'star': 'fghij' * 3}[length],
+                       {'1': 'F', '3': 'FGH', 'star': 'FGHIJ' * 3}[length]]],
+                     dtype='S')
+        expected = np.array([[list(item) for item in row] for row in a],
+                            dtype='u1', order='F')
+        assert_array_equal(f(a), expected)
+
+
+class TestCharacter(util.F2PyTest):
+    # options = ['--debug-capi', '--build-dir', '/tmp/test-build-f2py']
+    suffix = '.f90'
+    fprefix = 'test_character'
+
+    code = textwrap.dedent(f"""
+       subroutine {fprefix}_input(c, o)
+          character, intent(in) :: c
+          integer*1 o
+          !f2py intent(out) o
+          o = transfer(c, o)
+       end subroutine {fprefix}_input
+
+       subroutine {fprefix}_output(c, o)
+          character :: c
+          integer*1, intent(in) :: o
+          !f2py intent(out) c
+          c = transfer(o, c)
+       end subroutine {fprefix}_output
+
+       subroutine {fprefix}_input_output(c, o)
+          character, intent(in) :: c
+          character o
+          !f2py intent(out) o
+          o = c
+       end subroutine {fprefix}_input_output
+
+       subroutine {fprefix}_inout(c, n)
+          character :: c, n
+          !f2py intent(in) n
+          !f2py intent(inout) c
+          c = n
+       end subroutine {fprefix}_inout
+
+       function {fprefix}_return(o) result (c)
+          character :: c
+          character, intent(in) :: o
+          c = transfer(o, c)
+       end function {fprefix}_return
+
+       subroutine {fprefix}_array_input(c, o)
+          character, intent(in) :: c(3)
+          integer*1 o(3)
+          !f2py intent(out) o
+          integer i
+          do i=1,3
+            o(i) = transfer(c(i), o(i))
+          end do
+       end subroutine {fprefix}_array_input
+
+       subroutine {fprefix}_2d_array_input(c, o)
+          character, intent(in) :: c(2, 3)
+          integer*1 o(2, 3)
+          !f2py intent(out) o
+          integer i, j
+          do i=1,2
+            do j=1,3
+              o(i, j) = transfer(c(i, j), o(i, j))
+            end do
+          end do
+       end subroutine {fprefix}_2d_array_input
+
+       subroutine {fprefix}_array_output(c, o)
+          character :: c(3)
+          integer*1, intent(in) :: o(3)
+          !f2py intent(out) c
+          do i=1,3
+            c(i) = transfer(o(i), c(i))
+          end do
+       end subroutine {fprefix}_array_output
+
+       subroutine {fprefix}_array_inout(c, n)
+          character :: c(3), n(3)
+          !f2py intent(in) n(3)
+          !f2py intent(inout) c(3)
+          do i=1,3
+            c(i) = n(i)
+          end do
+       end subroutine {fprefix}_array_inout
+
+       subroutine {fprefix}_2d_array_inout(c, n)
+          character :: c(2, 3), n(2, 3)
+          !f2py intent(in) n(2, 3)
+          !f2py intent(inout) c(2. 3)
+          integer i, j
+          do i=1,2
+            do j=1,3
+              c(i, j) = n(i, j)
+            end do
+          end do
+       end subroutine {fprefix}_2d_array_inout
+
+       function {fprefix}_array_return(o) result (c)
+          character, dimension(3) :: c
+          character, intent(in) :: o(3)
+          do i=1,3
+            c(i) = o(i)
+          end do
+       end function {fprefix}_array_return
+
+       function {fprefix}_optional(o) result (c)
+          character, intent(in) :: o
+          !f2py character o = "a"
+          character :: c
+          c = o
+       end function {fprefix}_optional
+    """)
+
+    @pytest.mark.parametrize("dtype", ['c', 'S1'])
+    def test_input(self, dtype):
+        f = getattr(self.module, self.fprefix + '_input')
+
+        assert_equal(f(np.array('a', dtype=dtype)), ord('a'))
+        assert_equal(f(np.array(b'a', dtype=dtype)), ord('a'))
+        assert_equal(f(np.array(['a'], dtype=dtype)), ord('a'))
+        assert_equal(f(np.array('abc', dtype=dtype)), ord('a'))
+        assert_equal(f(np.array([['a']], dtype=dtype)), ord('a'))
+
+    def test_input_varia(self):
+        f = getattr(self.module, self.fprefix + '_input')
+
+        assert_equal(f('a'), ord('a'))
+        assert_equal(f(b'a'), ord(b'a'))
+        assert_equal(f(''), 0)
+        assert_equal(f(b''), 0)
+        assert_equal(f(b'\0'), 0)
+        assert_equal(f('ab'), ord('a'))
+        assert_equal(f(b'ab'), ord('a'))
+        assert_equal(f(['a']), ord('a'))
+
+        assert_equal(f(np.array(b'a')), ord('a'))
+        assert_equal(f(np.array([b'a'])), ord('a'))
+        a = np.array('a')
+        assert_equal(f(a), ord('a'))
+        a = np.array(['a'])
+        assert_equal(f(a), ord('a'))
+
+        try:
+            f([])
+        except IndexError as msg:
+            if not str(msg).endswith(' got 0-list'):
+                raise
+        else:
+            raise SystemError(f'{f.__name__} should have failed on empty list')
+
+        try:
+            f(97)
+        except TypeError as msg:
+            if not str(msg).endswith(' got int instance'):
+                raise
+        else:
+            raise SystemError(f'{f.__name__} should have failed on int value')
+
+    @pytest.mark.parametrize("dtype", ['c', 'S1', 'U1'])
+    def test_array_input(self, dtype):
+        f = getattr(self.module, self.fprefix + '_array_input')
+
+        assert_array_equal(f(np.array(['a', 'b', 'c'], dtype=dtype)),
+                           np.array(list(map(ord, 'abc')), dtype='i1'))
+        assert_array_equal(f(np.array([b'a', b'b', b'c'], dtype=dtype)),
+                           np.array(list(map(ord, 'abc')), dtype='i1'))
+
+    def test_array_input_varia(self):
+        f = getattr(self.module, self.fprefix + '_array_input')
+        assert_array_equal(f(['a', 'b', 'c']),
+                           np.array(list(map(ord, 'abc')), dtype='i1'))
+        assert_array_equal(f([b'a', b'b', b'c']),
+                           np.array(list(map(ord, 'abc')), dtype='i1'))
+
+        try:
+            f(['a', 'b', 'c', 'd'])
+        except ValueError as msg:
+            if not str(msg).endswith(
+                    'th dimension must be fixed to 3 but got 4'):
+                raise
+        else:
+            raise SystemError(
+                f'{f.__name__} should have failed on wrong input')
+
+    @pytest.mark.parametrize("dtype", ['c', 'S1', 'U1'])
+    def test_2d_array_input(self, dtype):
+        f = getattr(self.module, self.fprefix + '_2d_array_input')
+
+        a = np.array([['a', 'b', 'c'],
+                      ['d', 'e', 'f']], dtype=dtype, order='F')
+        expected = a.view(np.uint32 if dtype == 'U1' else np.uint8)
+        assert_array_equal(f(a), expected)
+
+    def test_output(self):
+        f = getattr(self.module, self.fprefix + '_output')
+
+        assert_equal(f(ord(b'a')), b'a')
+        assert_equal(f(0), b'\0')
+
+    def test_array_output(self):
+        f = getattr(self.module, self.fprefix + '_array_output')
+
+        assert_array_equal(f(list(map(ord, 'abc'))),
+                           np.array(list('abc'), dtype='S1'))
+
+    def test_input_output(self):
+        f = getattr(self.module, self.fprefix + '_input_output')
+
+        assert_equal(f(b'a'), b'a')
+        assert_equal(f('a'), b'a')
+        assert_equal(f(''), b'\0')
+
+    @pytest.mark.parametrize("dtype", ['c', 'S1'])
+    def test_inout(self, dtype):
+        f = getattr(self.module, self.fprefix + '_inout')
+
+        a = np.array(list('abc'), dtype=dtype)
+        f(a, 'A')
+        assert_array_equal(a, np.array(list('Abc'), dtype=a.dtype))
+        f(a[1:], 'B')
+        assert_array_equal(a, np.array(list('ABc'), dtype=a.dtype))
+
+        a = np.array(['abc'], dtype=dtype)
+        f(a, 'A')
+        assert_array_equal(a, np.array(['Abc'], dtype=a.dtype))
+
+    def test_inout_varia(self):
+        f = getattr(self.module, self.fprefix + '_inout')
+        a = np.array('abc', dtype='S3')
+        f(a, 'A')
+        assert_array_equal(a, np.array('Abc', dtype=a.dtype))
+
+        a = np.array(['abc'], dtype='S3')
+        f(a, 'A')
+        assert_array_equal(a, np.array(['Abc'], dtype=a.dtype))
+
+        try:
+            f('abc', 'A')
+        except ValueError as msg:
+            if not str(msg).endswith(' got 3-str'):
+                raise
+        else:
+            raise SystemError(f'{f.__name__} should have failed on str value')
+
+    @pytest.mark.parametrize("dtype", ['c', 'S1'])
+    def test_array_inout(self, dtype):
+        f = getattr(self.module, self.fprefix + '_array_inout')
+        n = np.array(['A', 'B', 'C'], dtype=dtype, order='F')
+
+        a = np.array(['a', 'b', 'c'], dtype=dtype, order='F')
+        f(a, n)
+        assert_array_equal(a, n)
+
+        a = np.array(['a', 'b', 'c', 'd'], dtype=dtype)
+        f(a[1:], n)
+        assert_array_equal(a, np.array(['a', 'A', 'B', 'C'], dtype=dtype))
+
+        a = np.array([['a', 'b', 'c']], dtype=dtype, order='F')
+        f(a, n)
+        assert_array_equal(a, np.array([['A', 'B', 'C']], dtype=dtype))
+
+        a = np.array(['a', 'b', 'c', 'd'], dtype=dtype, order='F')
+        try:
+            f(a, n)
+        except ValueError as msg:
+            if not str(msg).endswith(
+                    'th dimension must be fixed to 3 but got 4'):
+                raise
+        else:
+            raise SystemError(
+                f'{f.__name__} should have failed on wrong input')
+
+    @pytest.mark.parametrize("dtype", ['c', 'S1'])
+    def test_2d_array_inout(self, dtype):
+        f = getattr(self.module, self.fprefix + '_2d_array_inout')
+        n = np.array([['A', 'B', 'C'],
+                      ['D', 'E', 'F']],
+                     dtype=dtype, order='F')
+        a = np.array([['a', 'b', 'c'],
+                      ['d', 'e', 'f']],
+                     dtype=dtype, order='F')
+        f(a, n)
+        assert_array_equal(a, n)
+
+    def test_return(self):
+        f = getattr(self.module, self.fprefix + '_return')
+
+        assert_equal(f('a'), b'a')
+
+    @pytest.mark.skip('fortran function returning array segfaults')
+    def test_array_return(self):
+        f = getattr(self.module, self.fprefix + '_array_return')
+
+        a = np.array(list('abc'), dtype='S1')
+        assert_array_equal(f(a), a)
+
+    def test_optional(self):
+        f = getattr(self.module, self.fprefix + '_optional')
+
+        assert_equal(f(), b"a")
+        assert_equal(f(b'B'), b"B")
+
+
+class TestMiscCharacter(util.F2PyTest):
+    # options = ['--debug-capi', '--build-dir', '/tmp/test-build-f2py']
+    suffix = '.f90'
+    fprefix = 'test_misc_character'
+
+    code = textwrap.dedent(f"""
+       subroutine {fprefix}_gh18684(x, y, m)
+         character(len=5), dimension(m), intent(in) :: x
+         character*5, dimension(m), intent(out) :: y
+         integer i, m
+         !f2py integer, intent(hide), depend(x) :: m = f2py_len(x)
+         do i=1,m
+           y(i) = x(i)
+         end do
+       end subroutine {fprefix}_gh18684
+
+       subroutine {fprefix}_gh6308(x, i)
+         integer i
+         !f2py check(i>=0 && i<12) i
+         character*5 name, x
+         common name(12)
+         name(i + 1) = x
+       end subroutine {fprefix}_gh6308
+
+       subroutine {fprefix}_gh4519(x)
+         character(len=*), intent(in) :: x(:)
+         !f2py intent(out) x
+         integer :: i
+         ! Uncomment for debug printing:
+         !do i=1, size(x)
+         !   print*, "x(",i,")=", x(i)
+         !end do
+       end subroutine {fprefix}_gh4519
+
+       pure function {fprefix}_gh3425(x) result (y)
+         character(len=*), intent(in) :: x
+         character(len=len(x)) :: y
+         integer :: i
+         do i = 1, len(x)
+           j = iachar(x(i:i))
+           if (j>=iachar("a") .and. j<=iachar("z") ) then
+             y(i:i) = achar(j-32)
+           else
+             y(i:i) = x(i:i)
+           endif
+         end do
+       end function {fprefix}_gh3425
+
+       subroutine {fprefix}_character_bc_new(x, y, z)
+         character, intent(in) :: x
+         character, intent(out) :: y
+         !f2py character, depend(x) :: y = x
+         !f2py character, dimension((x=='a'?1:2)), depend(x), intent(out) :: z
+         character, dimension(*) :: z
+         !f2py character, optional, check(x == 'a' || x == 'b') :: x = 'a'
+         !f2py callstatement (*f2py_func)(&x, &y, z)
+         !f2py callprotoargument character*, character*, character*
+         if (y.eq.x) then
+           y = x
+         else
+           y = 'e'
+         endif
+         z(1) = 'c'
+       end subroutine {fprefix}_character_bc_new
+
+       subroutine {fprefix}_character_bc_old(x, y, z)
+         character, intent(in) :: x
+         character, intent(out) :: y
+         !f2py character, depend(x) :: y = x[0]
+         !f2py character, dimension((*x=='a'?1:2)), depend(x), intent(out) :: z
+         character, dimension(*) :: z
+         !f2py character, optional, check(*x == 'a' || x[0] == 'b') :: x = 'a'
+         !f2py callstatement (*f2py_func)(x, y, z)
+         !f2py callprotoargument char*, char*, char*
+          if (y.eq.x) then
+           y = x
+         else
+           y = 'e'
+         endif
+         z(1) = 'c'
+       end subroutine {fprefix}_character_bc_old
+    """)
+
+    @pytest.mark.slow
+    def test_gh18684(self):
+        # Test character(len=5) and character*5 usages
+        f = getattr(self.module, self.fprefix + '_gh18684')
+        x = np.array(["abcde", "fghij"], dtype='S5')
+        y = f(x)
+
+        assert_array_equal(x, y)
+
+    def test_gh6308(self):
+        # Test character string array in a common block
+        f = getattr(self.module, self.fprefix + '_gh6308')
+
+        assert_equal(self.module._BLNK_.name.dtype, np.dtype('S5'))
+        assert_equal(len(self.module._BLNK_.name), 12)
+        f("abcde", 0)
+        assert_equal(self.module._BLNK_.name[0], b"abcde")
+        f("12345", 5)
+        assert_equal(self.module._BLNK_.name[5], b"12345")
+
+    def test_gh4519(self):
+        # Test array of assumed length strings
+        f = getattr(self.module, self.fprefix + '_gh4519')
+
+        for x, expected in [
+                ('a', {'shape': (), 'dtype': np.dtype('S1')}),
+                ('text', {'shape': (), 'dtype': np.dtype('S4')}),
+                (np.array(['1', '2', '3'], dtype='S1'),
+                 {'shape': (3,), 'dtype': np.dtype('S1')}),
+                (['1', '2', '34'],
+                 {'shape': (3,), 'dtype': np.dtype('S2')}),
+                (['', ''], {'shape': (2,), 'dtype': np.dtype('S1')})]:
+            r = f(x)
+            for k, v in expected.items():
+                assert_equal(getattr(r, k), v)
+
+    def test_gh3425(self):
+        # Test returning a copy of assumed length string
+        f = getattr(self.module, self.fprefix + '_gh3425')
+        # f is equivalent to bytes.upper
+
+        assert_equal(f('abC'), b'ABC')
+        assert_equal(f(''), b'')
+        assert_equal(f('abC12d'), b'ABC12D')
+
+    @pytest.mark.parametrize("state", ['new', 'old'])
+    def test_character_bc(self, state):
+        f = getattr(self.module, self.fprefix + '_character_bc_' + state)
+
+        c, a = f()
+        assert_equal(c, b'a')
+        assert_equal(len(a), 1)
+
+        c, a = f(b'b')
+        assert_equal(c, b'b')
+        assert_equal(len(a), 2)
+
+        assert_raises(Exception, lambda: f(b'c'))
+
+
+class TestStringScalarArr(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "string", "scalar_string.f90")]
+
+    def test_char(self):
+        for out in (self.module.string_test.string,
+                    self.module.string_test.string77):
+            expected = ()
+            assert out.shape == expected
+            expected = '|S8'
+            assert out.dtype == expected
+
+    def test_char_arr(self):
+        for out in (self.module.string_test.strarr,
+                    self.module.string_test.strarr77):
+            expected = (5, 7)
+            assert out.shape == expected
+            expected = '|S12'
+            assert out.dtype == expected
+
+class TestStringAssumedLength(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "string", "gh24008.f")]
+
+    def test_gh24008(self):
+        self.module.greet("joe", "bob")
+
+@pytest.mark.slow
+class TestStringOptionalInOut(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "string", "gh24662.f90")]
+
+    def test_gh24662(self):
+        self.module.string_inout_optional()
+        a = np.array('hi', dtype='S32')
+        self.module.string_inout_optional(a)
+        assert "output string" in a.tobytes().decode()
+        with pytest.raises(Exception):  # noqa: B017
+            aa = "Hi"
+            self.module.string_inout_optional(aa)
+
+
+@pytest.mark.slow
+class TestNewCharHandling(util.F2PyTest):
+    # from v1.24 onwards, gh-19388
+    sources = [
+        util.getpath("tests", "src", "string", "gh25286.pyf"),
+        util.getpath("tests", "src", "string", "gh25286.f90")
+    ]
+    module_name = "_char_handling_test"
+
+    def test_gh25286(self):
+        info = self.module.charint('T')
+        assert info == 2
+
+@pytest.mark.slow
+class TestBCCharHandling(util.F2PyTest):
+    # SciPy style, "incorrect" bindings with a hook
+    sources = [
+        util.getpath("tests", "src", "string", "gh25286_bc.pyf"),
+        util.getpath("tests", "src", "string", "gh25286.f90")
+    ]
+    module_name = "_char_handling_test"
+
+    def test_gh25286(self):
+        info = self.module.charint('T')
+        assert info == 2
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_common.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_common.py
new file mode 100644
index 0000000000000000000000000000000000000000..b88c9b8df353012eb1bf4aa4327dc1dca4302b35
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_common.py
@@ -0,0 +1,23 @@
+import pytest
+
+import numpy as np
+
+from . import util
+
+
+@pytest.mark.slow
+class TestCommonBlock(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "common", "block.f")]
+
+    def test_common_block(self):
+        self.module.initcb()
+        assert self.module.block.long_bn == np.array(1.0, dtype=np.float64)
+        assert self.module.block.string_bn == np.array("2", dtype="|S1")
+        assert self.module.block.ok == np.array(3, dtype=np.int32)
+
+
+class TestCommonWithUse(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "common", "gh19161.f90")]
+
+    def test_common_gh19161(self):
+        assert self.module.data.x == 0
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_crackfortran.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_crackfortran.py
new file mode 100644
index 0000000000000000000000000000000000000000..005ec65884644c9b55f61a01ce481e819e574a94
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_crackfortran.py
@@ -0,0 +1,421 @@
+import contextlib
+import importlib
+import io
+import textwrap
+import time
+
+import pytest
+
+import numpy as np
+from numpy.f2py import crackfortran
+from numpy.f2py.crackfortran import markinnerspaces, nameargspattern
+
+from . import util
+
+
+class TestNoSpace(util.F2PyTest):
+    # issue gh-15035: add handling for endsubroutine, endfunction with no space
+    # between "end" and the block name
+    sources = [util.getpath("tests", "src", "crackfortran", "gh15035.f")]
+
+    def test_module(self):
+        k = np.array([1, 2, 3], dtype=np.float64)
+        w = np.array([1, 2, 3], dtype=np.float64)
+        self.module.subb(k)
+        assert np.allclose(k, w + 1)
+        self.module.subc([w, k])
+        assert np.allclose(k, w + 1)
+        assert self.module.t0("23") == b"2"
+
+
+class TestPublicPrivate:
+    def test_defaultPrivate(self):
+        fpath = util.getpath("tests", "src", "crackfortran", "privatemod.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        mod = mod[0]
+        assert "private" in mod["vars"]["a"]["attrspec"]
+        assert "public" not in mod["vars"]["a"]["attrspec"]
+        assert "private" in mod["vars"]["b"]["attrspec"]
+        assert "public" not in mod["vars"]["b"]["attrspec"]
+        assert "private" not in mod["vars"]["seta"]["attrspec"]
+        assert "public" in mod["vars"]["seta"]["attrspec"]
+
+    def test_defaultPublic(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "publicmod.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        mod = mod[0]
+        assert "private" in mod["vars"]["a"]["attrspec"]
+        assert "public" not in mod["vars"]["a"]["attrspec"]
+        assert "private" not in mod["vars"]["seta"]["attrspec"]
+        assert "public" in mod["vars"]["seta"]["attrspec"]
+
+    def test_access_type(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "accesstype.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        tt = mod[0]['vars']
+        assert set(tt['a']['attrspec']) == {'private', 'bind(c)'}
+        assert set(tt['b_']['attrspec']) == {'public', 'bind(c)'}
+        assert set(tt['c']['attrspec']) == {'public'}
+
+    def test_nowrap_private_proceedures(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "gh23879.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        pyf = crackfortran.crack2fortran(mod)
+        assert 'bar' not in pyf
+
+class TestModuleProcedure:
+    def test_moduleOperators(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "operators.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        mod = mod[0]
+        assert "body" in mod and len(mod["body"]) == 9
+        assert mod["body"][1]["name"] == "operator(.item.)"
+        assert "implementedby" in mod["body"][1]
+        assert mod["body"][1]["implementedby"] == \
+            ["item_int", "item_real"]
+        assert mod["body"][2]["name"] == "operator(==)"
+        assert "implementedby" in mod["body"][2]
+        assert mod["body"][2]["implementedby"] == ["items_are_equal"]
+        assert mod["body"][3]["name"] == "assignment(=)"
+        assert "implementedby" in mod["body"][3]
+        assert mod["body"][3]["implementedby"] == \
+            ["get_int", "get_real"]
+
+    def test_notPublicPrivate(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "pubprivmod.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        mod = mod[0]
+        assert mod['vars']['a']['attrspec'] == ['private', ]
+        assert mod['vars']['b']['attrspec'] == ['public', ]
+        assert mod['vars']['seta']['attrspec'] == ['public', ]
+
+
+class TestExternal(util.F2PyTest):
+    # issue gh-17859: add external attribute support
+    sources = [util.getpath("tests", "src", "crackfortran", "gh17859.f")]
+
+    def test_external_as_statement(self):
+        def incr(x):
+            return x + 123
+
+        r = self.module.external_as_statement(incr)
+        assert r == 123
+
+    def test_external_as_attribute(self):
+        def incr(x):
+            return x + 123
+
+        r = self.module.external_as_attribute(incr)
+        assert r == 123
+
+
+class TestCrackFortran(util.F2PyTest):
+    # gh-2848: commented lines between parameters in subroutine parameter lists
+    sources = [util.getpath("tests", "src", "crackfortran", "gh2848.f90"),
+               util.getpath("tests", "src", "crackfortran", "common_with_division.f")
+              ]
+
+    def test_gh2848(self):
+        r = self.module.gh2848(1, 2)
+        assert r == (1, 2)
+
+    def test_common_with_division(self):
+        assert len(self.module.mortmp.ctmp) == 11
+
+class TestMarkinnerspaces:
+    # gh-14118: markinnerspaces does not handle multiple quotations
+
+    def test_do_not_touch_normal_spaces(self):
+        test_list = ["a ", " a", "a b c", "'abcdefghij'"]
+        for i in test_list:
+            assert markinnerspaces(i) == i
+
+    def test_one_relevant_space(self):
+        assert markinnerspaces("a 'b c' \\' \\'") == "a 'b@_@c' \\' \\'"
+        assert markinnerspaces(r'a "b c" \" \"') == r'a "b@_@c" \" \"'
+
+    def test_ignore_inner_quotes(self):
+        assert markinnerspaces("a 'b c\" \" d' e") == "a 'b@_@c\"@_@\"@_@d' e"
+        assert markinnerspaces("a \"b c' ' d\" e") == "a \"b@_@c'@_@'@_@d\" e"
+
+    def test_multiple_relevant_spaces(self):
+        assert markinnerspaces("a 'b c' 'd e'") == "a 'b@_@c' 'd@_@e'"
+        assert markinnerspaces(r'a "b c" "d e"') == r'a "b@_@c" "d@_@e"'
+
+
+class TestDimSpec(util.F2PyTest):
+    """This test suite tests various expressions that are used as dimension
+    specifications.
+
+    There exists two usage cases where analyzing dimensions
+    specifications are important.
+
+    In the first case, the size of output arrays must be defined based
+    on the inputs to a Fortran function. Because Fortran supports
+    arbitrary bases for indexing, for instance, `arr(lower:upper)`,
+    f2py has to evaluate an expression `upper - lower + 1` where
+    `lower` and `upper` are arbitrary expressions of input parameters.
+    The evaluation is performed in C, so f2py has to translate Fortran
+    expressions to valid C expressions (an alternative approach is
+    that a developer specifies the corresponding C expressions in a
+    .pyf file).
+
+    In the second case, when user provides an input array with a given
+    size but some hidden parameters used in dimensions specifications
+    need to be determined based on the input array size. This is a
+    harder problem because f2py has to solve the inverse problem: find
+    a parameter `p` such that `upper(p) - lower(p) + 1` equals to the
+    size of input array. In the case when this equation cannot be
+    solved (e.g. because the input array size is wrong), raise an
+    error before calling the Fortran function (that otherwise would
+    likely crash Python process when the size of input arrays is
+    wrong). f2py currently supports this case only when the equation
+    is linear with respect to unknown parameter.
+
+    """
+
+    suffix = ".f90"
+
+    code_template = textwrap.dedent("""
+      function get_arr_size_{count}(a, n) result (length)
+        integer, intent(in) :: n
+        integer, dimension({dimspec}), intent(out) :: a
+        integer length
+        length = size(a)
+      end function
+
+      subroutine get_inv_arr_size_{count}(a, n)
+        integer :: n
+        ! the value of n is computed in f2py wrapper
+        !f2py intent(out) n
+        integer, dimension({dimspec}), intent(in) :: a
+        if (a({first}).gt.0) then
+          ! print*, "a=", a
+        endif
+      end subroutine
+    """)
+
+    linear_dimspecs = [
+        "n", "2*n", "2:n", "n/2", "5 - n/2", "3*n:20", "n*(n+1):n*(n+5)",
+        "2*n, n"
+    ]
+    nonlinear_dimspecs = ["2*n:3*n*n+2*n"]
+    all_dimspecs = linear_dimspecs + nonlinear_dimspecs
+
+    code = ""
+    for count, dimspec in enumerate(all_dimspecs):
+        lst = [(d.split(":")[0] if ":" in d else "1") for d in dimspec.split(',')]
+        code += code_template.format(
+            count=count,
+            dimspec=dimspec,
+            first=", ".join(lst),
+        )
+
+    @pytest.mark.parametrize("dimspec", all_dimspecs)
+    @pytest.mark.slow
+    def test_array_size(self, dimspec):
+
+        count = self.all_dimspecs.index(dimspec)
+        get_arr_size = getattr(self.module, f"get_arr_size_{count}")
+
+        for n in [1, 2, 3, 4, 5]:
+            sz, a = get_arr_size(n)
+            assert a.size == sz
+
+    @pytest.mark.parametrize("dimspec", all_dimspecs)
+    def test_inv_array_size(self, dimspec):
+
+        count = self.all_dimspecs.index(dimspec)
+        get_arr_size = getattr(self.module, f"get_arr_size_{count}")
+        get_inv_arr_size = getattr(self.module, f"get_inv_arr_size_{count}")
+
+        for n in [1, 2, 3, 4, 5]:
+            sz, a = get_arr_size(n)
+            if dimspec in self.nonlinear_dimspecs:
+                # one must specify n as input, the call we'll ensure
+                # that a and n are compatible:
+                n1 = get_inv_arr_size(a, n)
+            else:
+                # in case of linear dependence, n can be determined
+                # from the shape of a:
+                n1 = get_inv_arr_size(a)
+            # n1 may be different from n (for instance, when `a` size
+            # is a function of some `n` fraction) but it must produce
+            # the same sized array
+            sz1, _ = get_arr_size(n1)
+            assert sz == sz1, (n, n1, sz, sz1)
+
+
+class TestModuleDeclaration:
+    def test_dependencies(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "foo_deps.f90")
+        mod = crackfortran.crackfortran([str(fpath)])
+        assert len(mod) == 1
+        assert mod[0]["vars"]["abar"]["="] == "bar('abar')"
+
+
+class TestEval(util.F2PyTest):
+    def test_eval_scalar(self):
+        eval_scalar = crackfortran._eval_scalar
+
+        assert eval_scalar('123', {}) == '123'
+        assert eval_scalar('12 + 3', {}) == '15'
+        assert eval_scalar('a + b', {"a": 1, "b": 2}) == '3'
+        assert eval_scalar('"123"', {}) == "'123'"
+
+
+class TestFortranReader(util.F2PyTest):
+    @pytest.mark.parametrize("encoding",
+                             ['ascii', 'utf-8', 'utf-16', 'utf-32'])
+    def test_input_encoding(self, tmp_path, encoding):
+        # gh-635
+        f_path = tmp_path / f"input_with_{encoding}_encoding.f90"
+        with f_path.open('w', encoding=encoding) as ff:
+            ff.write("""
+                     subroutine foo()
+                     end subroutine foo
+                     """)
+        mod = crackfortran.crackfortran([str(f_path)])
+        assert mod[0]['name'] == 'foo'
+
+
+@pytest.mark.slow
+class TestUnicodeComment(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "unicode_comment.f90")]
+
+    @pytest.mark.skipif(
+        (importlib.util.find_spec("charset_normalizer") is None),
+        reason="test requires charset_normalizer which is not installed",
+    )
+    def test_encoding_comment(self):
+        self.module.foo(3)
+
+
+class TestNameArgsPatternBacktracking:
+    @pytest.mark.parametrize(
+        ['adversary'],
+        [
+            ('@)@bind@(@',),
+            ('@)@bind                         @(@',),
+            ('@)@bind foo bar baz@(@',)
+        ]
+    )
+    def test_nameargspattern_backtracking(self, adversary):
+        '''address ReDOS vulnerability:
+        https://github.com/numpy/numpy/issues/23338'''
+        trials_per_batch = 12
+        batches_per_regex = 4
+        start_reps, end_reps = 15, 25
+        for ii in range(start_reps, end_reps):
+            repeated_adversary = adversary * ii
+            # test times in small batches.
+            # this gives us more chances to catch a bad regex
+            # while still catching it before too long if it is bad
+            for _ in range(batches_per_regex):
+                times = []
+                for _ in range(trials_per_batch):
+                    t0 = time.perf_counter()
+                    mtch = nameargspattern.search(repeated_adversary)
+                    times.append(time.perf_counter() - t0)
+                # our pattern should be much faster than 0.2s per search
+                # it's unlikely that a bad regex will pass even on fast CPUs
+                assert np.median(times) < 0.2
+            assert not mtch
+            # if the adversary is capped with @)@, it becomes acceptable
+            # according to the old version of the regex.
+            # that should still be true.
+            good_version_of_adversary = repeated_adversary + '@)@'
+            assert nameargspattern.search(good_version_of_adversary)
+
+class TestFunctionReturn(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "gh23598.f90")]
+
+    @pytest.mark.slow
+    def test_function_rettype(self):
+        # gh-23598
+        assert self.module.intproduct(3, 4) == 12
+
+
+class TestFortranGroupCounters(util.F2PyTest):
+    def test_end_if_comment(self):
+        # gh-23533
+        fpath = util.getpath("tests", "src", "crackfortran", "gh23533.f")
+        try:
+            crackfortran.crackfortran([str(fpath)])
+        except Exception as exc:
+            assert False, f"'crackfortran.crackfortran' raised an exception {exc}"
+
+
+class TestF77CommonBlockReader:
+    def test_gh22648(self, tmp_path):
+        fpath = util.getpath("tests", "src", "crackfortran", "gh22648.pyf")
+        with contextlib.redirect_stdout(io.StringIO()) as stdout_f2py:
+            mod = crackfortran.crackfortran([str(fpath)])
+        assert "Mismatch" not in stdout_f2py.getvalue()
+
+class TestParamEval:
+    # issue gh-11612, array parameter parsing
+    def test_param_eval_nested(self):
+        v = '(/3.14, 4./)'
+        g_params = {"kind": crackfortran._kind_func,
+                "selected_int_kind": crackfortran._selected_int_kind_func,
+                "selected_real_kind": crackfortran._selected_real_kind_func}
+        params = {'dp': 8, 'intparamarray': {1: 3, 2: 5},
+                  'nested': {1: 1, 2: 2, 3: 3}}
+        dimspec = '(2)'
+        ret = crackfortran.param_eval(v, g_params, params, dimspec=dimspec)
+        assert ret == {1: 3.14, 2: 4.0}
+
+    def test_param_eval_nonstandard_range(self):
+        v = '(/ 6, 3, 1 /)'
+        g_params = {"kind": crackfortran._kind_func,
+                "selected_int_kind": crackfortran._selected_int_kind_func,
+                "selected_real_kind": crackfortran._selected_real_kind_func}
+        params = {}
+        dimspec = '(-1:1)'
+        ret = crackfortran.param_eval(v, g_params, params, dimspec=dimspec)
+        assert ret == {-1: 6, 0: 3, 1: 1}
+
+    def test_param_eval_empty_range(self):
+        v = '6'
+        g_params = {"kind": crackfortran._kind_func,
+                "selected_int_kind": crackfortran._selected_int_kind_func,
+                "selected_real_kind": crackfortran._selected_real_kind_func}
+        params = {}
+        dimspec = ''
+        pytest.raises(ValueError, crackfortran.param_eval, v, g_params, params,
+                      dimspec=dimspec)
+
+    def test_param_eval_non_array_param(self):
+        v = '3.14_dp'
+        g_params = {"kind": crackfortran._kind_func,
+                "selected_int_kind": crackfortran._selected_int_kind_func,
+                "selected_real_kind": crackfortran._selected_real_kind_func}
+        params = {}
+        ret = crackfortran.param_eval(v, g_params, params, dimspec=None)
+        assert ret == '3.14_dp'
+
+    def test_param_eval_too_many_dims(self):
+        v = 'reshape((/ (i, i=1, 250) /), (/5, 10, 5/))'
+        g_params = {"kind": crackfortran._kind_func,
+                "selected_int_kind": crackfortran._selected_int_kind_func,
+                "selected_real_kind": crackfortran._selected_real_kind_func}
+        params = {}
+        dimspec = '(0:4, 3:12, 5)'
+        pytest.raises(ValueError, crackfortran.param_eval, v, g_params, params,
+                      dimspec=dimspec)
+
+@pytest.mark.slow
+class TestLowerF2PYDirective(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "gh27697.f90")]
+    options = ['--lower']
+
+    def test_no_lower_fail(self):
+        with pytest.raises(ValueError, match='aborting directly') as exc:
+            self.module.utils.my_abort('aborting directly')
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_data.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_data.py
new file mode 100644
index 0000000000000000000000000000000000000000..eaf7bccd5633b254572ba9f923803b92e6fe3da2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_data.py
@@ -0,0 +1,71 @@
+import pytest
+
+import numpy as np
+from numpy.f2py.crackfortran import crackfortran
+
+from . import util
+
+
+class TestData(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "data_stmts.f90")]
+
+    # For gh-23276
+    @pytest.mark.slow
+    def test_data_stmts(self):
+        assert self.module.cmplxdat.i == 2
+        assert self.module.cmplxdat.j == 3
+        assert self.module.cmplxdat.x == 1.5
+        assert self.module.cmplxdat.y == 2.0
+        assert self.module.cmplxdat.pi == 3.1415926535897932384626433832795028841971693993751058209749445923078164062
+        assert self.module.cmplxdat.medium_ref_index == np.array(1. + 0.j)
+        assert np.all(self.module.cmplxdat.z == np.array([3.5, 7.0]))
+        assert np.all(self.module.cmplxdat.my_array == np.array([ 1. + 2.j, -3. + 4.j]))
+        assert np.all(self.module.cmplxdat.my_real_array == np.array([ 1., 2., 3.]))
+        assert np.all(self.module.cmplxdat.ref_index_one == np.array([13.0 + 21.0j]))
+        assert np.all(self.module.cmplxdat.ref_index_two == np.array([-30.0 + 43.0j]))
+
+    def test_crackedlines(self):
+        mod = crackfortran(self.sources)
+        assert mod[0]['vars']['x']['='] == '1.5'
+        assert mod[0]['vars']['y']['='] == '2.0'
+        assert mod[0]['vars']['pi']['='] == '3.1415926535897932384626433832795028841971693993751058209749445923078164062d0'
+        assert mod[0]['vars']['my_real_array']['='] == '(/1.0d0, 2.0d0, 3.0d0/)'
+        assert mod[0]['vars']['ref_index_one']['='] == '(13.0d0, 21.0d0)'
+        assert mod[0]['vars']['ref_index_two']['='] == '(-30.0d0, 43.0d0)'
+        assert mod[0]['vars']['my_array']['='] == '(/(1.0d0, 2.0d0), (-3.0d0, 4.0d0)/)'
+        assert mod[0]['vars']['z']['='] == '(/3.5,  7.0/)'
+
+class TestDataF77(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "data_common.f")]
+
+    # For gh-23276
+    def test_data_stmts(self):
+        assert self.module.mycom.mydata == 0
+
+    def test_crackedlines(self):
+        mod = crackfortran(str(self.sources[0]))
+        print(mod[0]['vars'])
+        assert mod[0]['vars']['mydata']['='] == '0'
+
+
+class TestDataMultiplierF77(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "data_multiplier.f")]
+
+    # For gh-23276
+    def test_data_stmts(self):
+        assert self.module.mycom.ivar1 == 3
+        assert self.module.mycom.ivar2 == 3
+        assert self.module.mycom.ivar3 == 2
+        assert self.module.mycom.ivar4 == 2
+        assert self.module.mycom.evar5 == 0
+
+
+class TestDataWithCommentsF77(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "crackfortran", "data_with_comments.f")]
+
+    # For gh-23276
+    def test_data_stmts(self):
+        assert len(self.module.mycom.mytab) == 3
+        assert self.module.mycom.mytab[0] == 0
+        assert self.module.mycom.mytab[1] == 4
+        assert self.module.mycom.mytab[2] == 0
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_docs.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_docs.py
new file mode 100644
index 0000000000000000000000000000000000000000..574ea6249052a8cee9ac69ff5944e9ad2bc9f996
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_docs.py
@@ -0,0 +1,66 @@
+from pathlib import Path
+
+import pytest
+
+import numpy as np
+from numpy.testing import assert_array_equal, assert_equal
+
+from . import util
+
+
+def get_docdir():
+    parents = Path(__file__).resolve().parents
+    try:
+        # Assumes that spin is used to run tests
+        nproot = parents[8]
+    except IndexError:
+        docdir = None
+    else:
+        docdir = nproot / "doc" / "source" / "f2py" / "code"
+    if docdir and docdir.is_dir():
+        return docdir
+    # Assumes that an editable install is used to run tests
+    return parents[3] / "doc" / "source" / "f2py" / "code"
+
+
+pytestmark = pytest.mark.skipif(
+    not get_docdir().is_dir(),
+    reason=f"Could not find f2py documentation sources"
+    f"({get_docdir()} does not exist)",
+)
+
+def _path(*args):
+    return get_docdir().joinpath(*args)
+
+@pytest.mark.slow
+class TestDocAdvanced(util.F2PyTest):
+    # options = ['--debug-capi', '--build-dir', '/tmp/build-f2py']
+    sources = [_path('asterisk1.f90'), _path('asterisk2.f90'),
+               _path('ftype.f')]
+
+    def test_asterisk1(self):
+        foo = self.module.foo1
+        assert_equal(foo(), b'123456789A12')
+
+    def test_asterisk2(self):
+        foo = self.module.foo2
+        assert_equal(foo(2), b'12')
+        assert_equal(foo(12), b'123456789A12')
+        assert_equal(foo(20), b'123456789A123456789B')
+
+    def test_ftype(self):
+        ftype = self.module
+        ftype.foo()
+        assert_equal(ftype.data.a, 0)
+        ftype.data.a = 3
+        ftype.data.x = [1, 2, 3]
+        assert_equal(ftype.data.a, 3)
+        assert_array_equal(ftype.data.x,
+                           np.array([1, 2, 3], dtype=np.float32))
+        ftype.data.x[1] = 45
+        assert_array_equal(ftype.data.x,
+                           np.array([1, 45, 3], dtype=np.float32))
+        # gh-26718 Cleanup for repeated test runs
+        ftype.data.a = 0
+
+    # TODO: implement test methods for other example Fortran codes
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_f2cmap.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_f2cmap.py
new file mode 100644
index 0000000000000000000000000000000000000000..64931dfdb0a6d9c3142bea2f362d530f99e90c5c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_f2cmap.py
@@ -0,0 +1,17 @@
+import numpy as np
+
+from . import util
+
+
+class TestF2Cmap(util.F2PyTest):
+    sources = [
+        util.getpath("tests", "src", "f2cmap", "isoFortranEnvMap.f90"),
+        util.getpath("tests", "src", "f2cmap", ".f2py_f2cmap")
+    ]
+
+    # gh-15095
+    def test_gh15095(self):
+        inp = np.ones(3)
+        out = self.module.func1(inp)
+        exp_out = 3
+        assert out == exp_out
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_f2py2e.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_f2py2e.py
new file mode 100644
index 0000000000000000000000000000000000000000..6420cabefd89606f11a4074b6d0d599feac42e8d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_f2py2e.py
@@ -0,0 +1,983 @@
+import platform
+import re
+import shlex
+import subprocess
+import sys
+import textwrap
+from collections import namedtuple
+from pathlib import Path
+
+import pytest
+
+from numpy.f2py.f2py2e import main as f2pycli
+from numpy.testing._private.utils import NOGIL_BUILD
+
+from . import util
+
+#######################
+# F2PY Test utilities #
+######################
+
+# Tests for CLI commands which call meson will fail if no compilers are present, these are to be skipped
+
+def compiler_check_f2pycli():
+    if not util.has_fortran_compiler():
+        pytest.skip("CLI command needs a Fortran compiler")
+    else:
+        f2pycli()
+
+#########################
+# CLI utils and classes #
+#########################
+
+
+PPaths = namedtuple("PPaths", "finp, f90inp, pyf, wrap77, wrap90, cmodf")
+
+
+def get_io_paths(fname_inp, mname="untitled"):
+    """Takes in a temporary file for testing and returns the expected output and input paths
+
+    Here expected output is essentially one of any of the possible generated
+    files.
+
+    ..note::
+
+         Since this does not actually run f2py, none of these are guaranteed to
+         exist, and module names are typically incorrect
+
+    Parameters
+    ----------
+    fname_inp : str
+                The input filename
+    mname : str, optional
+                The name of the module, untitled by default
+
+    Returns
+    -------
+    genp : NamedTuple PPaths
+            The possible paths which are generated, not all of which exist
+    """
+    bpath = Path(fname_inp)
+    return PPaths(
+        finp=bpath.with_suffix(".f"),
+        f90inp=bpath.with_suffix(".f90"),
+        pyf=bpath.with_suffix(".pyf"),
+        wrap77=bpath.with_name(f"{mname}-f2pywrappers.f"),
+        wrap90=bpath.with_name(f"{mname}-f2pywrappers2.f90"),
+        cmodf=bpath.with_name(f"{mname}module.c"),
+    )
+
+
+################
+# CLI Fixtures #
+################
+
+
+@pytest.fixture(scope="session")
+def hello_world_f90(tmpdir_factory):
+    """Generates a single f90 file for testing"""
+    fdat = util.getpath("tests", "src", "cli", "hiworld.f90").read_text()
+    fn = tmpdir_factory.getbasetemp() / "hello.f90"
+    fn.write_text(fdat, encoding="ascii")
+    return fn
+
+
+@pytest.fixture(scope="session")
+def gh23598_warn(tmpdir_factory):
+    """F90 file for testing warnings in gh23598"""
+    fdat = util.getpath("tests", "src", "crackfortran", "gh23598Warn.f90").read_text()
+    fn = tmpdir_factory.getbasetemp() / "gh23598Warn.f90"
+    fn.write_text(fdat, encoding="ascii")
+    return fn
+
+
+@pytest.fixture(scope="session")
+def gh22819_cli(tmpdir_factory):
+    """F90 file for testing disallowed CLI arguments in ghff819"""
+    fdat = util.getpath("tests", "src", "cli", "gh_22819.pyf").read_text()
+    fn = tmpdir_factory.getbasetemp() / "gh_22819.pyf"
+    fn.write_text(fdat, encoding="ascii")
+    return fn
+
+
+@pytest.fixture(scope="session")
+def hello_world_f77(tmpdir_factory):
+    """Generates a single f77 file for testing"""
+    fdat = util.getpath("tests", "src", "cli", "hi77.f").read_text()
+    fn = tmpdir_factory.getbasetemp() / "hello.f"
+    fn.write_text(fdat, encoding="ascii")
+    return fn
+
+
+@pytest.fixture(scope="session")
+def retreal_f77(tmpdir_factory):
+    """Generates a single f77 file for testing"""
+    fdat = util.getpath("tests", "src", "return_real", "foo77.f").read_text()
+    fn = tmpdir_factory.getbasetemp() / "foo.f"
+    fn.write_text(fdat, encoding="ascii")
+    return fn
+
+@pytest.fixture(scope="session")
+def f2cmap_f90(tmpdir_factory):
+    """Generates a single f90 file for testing"""
+    fdat = util.getpath("tests", "src", "f2cmap", "isoFortranEnvMap.f90").read_text()
+    f2cmap = util.getpath("tests", "src", "f2cmap", ".f2py_f2cmap").read_text()
+    fn = tmpdir_factory.getbasetemp() / "f2cmap.f90"
+    fmap = tmpdir_factory.getbasetemp() / "mapfile"
+    fn.write_text(fdat, encoding="ascii")
+    fmap.write_text(f2cmap, encoding="ascii")
+    return fn
+
+#########
+# Tests #
+#########
+
+def test_gh22819_cli(capfd, gh22819_cli, monkeypatch):
+    """Check that module names are handled correctly
+    gh-22819
+    Essentially, the -m name cannot be used to import the module, so the module
+    named in the .pyf needs to be used instead
+
+    CLI :: -m and a .pyf file
+    """
+    ipath = Path(gh22819_cli)
+    monkeypatch.setattr(sys, "argv", f"f2py -m blah {ipath}".split())
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        gen_paths = [item.name for item in ipath.parent.rglob("*") if item.is_file()]
+        assert "blahmodule.c" not in gen_paths  # shouldn't be generated
+        assert "blah-f2pywrappers.f" not in gen_paths
+        assert "test_22819-f2pywrappers.f" in gen_paths
+        assert "test_22819module.c" in gen_paths
+
+
+def test_gh22819_many_pyf(capfd, gh22819_cli, monkeypatch):
+    """Only one .pyf file allowed
+    gh-22819
+    CLI :: .pyf files
+    """
+    ipath = Path(gh22819_cli)
+    monkeypatch.setattr(sys, "argv", f"f2py -m blah {ipath} hello.pyf".split())
+    with util.switchdir(ipath.parent):
+        with pytest.raises(ValueError, match="Only one .pyf file per call"):
+            f2pycli()
+
+
+def test_gh23598_warn(capfd, gh23598_warn, monkeypatch):
+    foutl = get_io_paths(gh23598_warn, mname="test")
+    ipath = foutl.f90inp
+    monkeypatch.setattr(
+        sys, "argv",
+        f'f2py {ipath} -m test'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()  # Generate files
+        wrapper = foutl.wrap90.read_text()
+        assert "intproductf2pywrap, intpr" not in wrapper
+
+
+def test_gen_pyf(capfd, hello_world_f90, monkeypatch):
+    """Ensures that a signature file is generated via the CLI
+    CLI :: -h
+    """
+    ipath = Path(hello_world_f90)
+    opath = Path(hello_world_f90).stem + ".pyf"
+    monkeypatch.setattr(sys, "argv", f'f2py -h {opath} {ipath}'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()  # Generate wrappers
+        out, _ = capfd.readouterr()
+        assert "Saving signatures to file" in out
+        assert Path(f'{opath}').exists()
+
+
+def test_gen_pyf_stdout(capfd, hello_world_f90, monkeypatch):
+    """Ensures that a signature file can be dumped to stdout
+    CLI :: -h
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -h stdout {ipath}'.split())
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Saving signatures to file" in out
+        assert "function hi() ! in " in out
+
+
+def test_gen_pyf_no_overwrite(capfd, hello_world_f90, monkeypatch):
+    """Ensures that the CLI refuses to overwrite signature files
+    CLI :: -h without --overwrite-signature
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -h faker.pyf {ipath}'.split())
+
+    with util.switchdir(ipath.parent):
+        Path("faker.pyf").write_text("Fake news", encoding="ascii")
+        with pytest.raises(SystemExit):
+            f2pycli()  # Refuse to overwrite
+            _, err = capfd.readouterr()
+            assert "Use --overwrite-signature to overwrite" in err
+
+
+@pytest.mark.skipif(sys.version_info <= (3, 12), reason="Python 3.12 required")
+def test_untitled_cli(capfd, hello_world_f90, monkeypatch):
+    """Check that modules are named correctly
+
+    CLI :: defaults
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f"f2py --backend meson -c {ipath}".split())
+    with util.switchdir(ipath.parent):
+        compiler_check_f2pycli()
+        out, _ = capfd.readouterr()
+        assert "untitledmodule.c" in out
+
+
+@pytest.mark.skipif((platform.system() != 'Linux') or (sys.version_info <= (3, 12)), reason='Compiler and 3.12 required')
+def test_no_py312_distutils_fcompiler(capfd, hello_world_f90, monkeypatch):
+    """Check that no distutils imports are performed on 3.12
+    CLI :: --fcompiler --help-link --backend distutils
+    """
+    MNAME = "hi"
+    foutl = get_io_paths(hello_world_f90, mname=MNAME)
+    ipath = foutl.f90inp
+    monkeypatch.setattr(
+        sys, "argv", f"f2py {ipath} -c --fcompiler=gfortran -m {MNAME}".split()
+    )
+    with util.switchdir(ipath.parent):
+        compiler_check_f2pycli()
+        out, _ = capfd.readouterr()
+        assert "--fcompiler cannot be used with meson" in out
+    monkeypatch.setattr(
+        sys, "argv", ["f2py", "--help-link"]
+    )
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Use --dep for meson builds" in out
+    MNAME = "hi2"  # Needs to be different for a new -c
+    monkeypatch.setattr(
+        sys, "argv", f"f2py {ipath} -c -m {MNAME} --backend distutils".split()
+    )
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Cannot use distutils backend with Python>=3.12" in out
+
+
+@pytest.mark.xfail
+def test_f2py_skip(capfd, retreal_f77, monkeypatch):
+    """Tests that functions can be skipped
+    CLI :: skip:
+    """
+    foutl = get_io_paths(retreal_f77, mname="test")
+    ipath = foutl.finp
+    toskip = "t0 t4 t8 sd s8 s4"
+    remaining = "td s0"
+    monkeypatch.setattr(
+        sys, "argv",
+        f'f2py {ipath} -m test skip: {toskip}'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, err = capfd.readouterr()
+        for skey in toskip.split():
+            assert (
+                f'buildmodule: Could not found the body of interfaced routine "{skey}". Skipping.'
+                in err)
+        for rkey in remaining.split():
+            assert f'Constructing wrapper function "{rkey}"' in out
+
+
+def test_f2py_only(capfd, retreal_f77, monkeypatch):
+    """Test that functions can be kept by only:
+    CLI :: only:
+    """
+    foutl = get_io_paths(retreal_f77, mname="test")
+    ipath = foutl.finp
+    toskip = "t0 t4 t8 sd s8 s4"
+    tokeep = "td s0"
+    monkeypatch.setattr(
+        sys, "argv",
+        f'f2py {ipath} -m test only: {tokeep}'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, err = capfd.readouterr()
+        for skey in toskip.split():
+            assert (
+                f'buildmodule: Could not find the body of interfaced routine "{skey}". Skipping.'
+                in err)
+        for rkey in tokeep.split():
+            assert f'Constructing wrapper function "{rkey}"' in out
+
+
+def test_file_processing_switch(capfd, hello_world_f90, retreal_f77,
+                                monkeypatch):
+    """Tests that it is possible to return to file processing mode
+    CLI :: :
+    BUG: numpy-gh #20520
+    """
+    foutl = get_io_paths(retreal_f77, mname="test")
+    ipath = foutl.finp
+    toskip = "t0 t4 t8 sd s8 s4"
+    ipath2 = Path(hello_world_f90)
+    tokeep = "td s0 hi"  # hi is in ipath2
+    mname = "blah"
+    monkeypatch.setattr(
+        sys,
+        "argv",
+        f'f2py {ipath} -m {mname} only: {tokeep} : {ipath2}'.split(
+        ),
+    )
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, err = capfd.readouterr()
+        for skey in toskip.split():
+            assert (
+                f'buildmodule: Could not find the body of interfaced routine "{skey}". Skipping.'
+                in err)
+        for rkey in tokeep.split():
+            assert f'Constructing wrapper function "{rkey}"' in out
+
+
+def test_mod_gen_f77(capfd, hello_world_f90, monkeypatch):
+    """Checks the generation of files based on a module name
+    CLI :: -m
+    """
+    MNAME = "hi"
+    foutl = get_io_paths(hello_world_f90, mname=MNAME)
+    ipath = foutl.f90inp
+    monkeypatch.setattr(sys, "argv", f'f2py {ipath} -m {MNAME}'.split())
+    with util.switchdir(ipath.parent):
+        f2pycli()
+
+    # Always generate C module
+    assert Path.exists(foutl.cmodf)
+    # File contains a function, check for F77 wrappers
+    assert Path.exists(foutl.wrap77)
+
+
+def test_mod_gen_gh25263(capfd, hello_world_f77, monkeypatch):
+    """Check that pyf files are correctly generated with module structure
+    CLI :: -m <name> -h pyf_file
+    BUG: numpy-gh #20520
+    """
+    MNAME = "hi"
+    foutl = get_io_paths(hello_world_f77, mname=MNAME)
+    ipath = foutl.finp
+    monkeypatch.setattr(sys, "argv", f'f2py {ipath} -m {MNAME} -h hi.pyf'.split())
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        with Path('hi.pyf').open() as hipyf:
+            pyfdat = hipyf.read()
+            assert "python module hi" in pyfdat
+
+
+def test_lower_cmod(capfd, hello_world_f77, monkeypatch):
+    """Lowers cases by flag or when -h is present
+
+    CLI :: --[no-]lower
+    """
+    foutl = get_io_paths(hello_world_f77, mname="test")
+    ipath = foutl.finp
+    capshi = re.compile(r"HI\(\)")
+    capslo = re.compile(r"hi\(\)")
+    # Case I: --lower is passed
+    monkeypatch.setattr(sys, "argv", f'f2py {ipath} -m test --lower'.split())
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert capslo.search(out) is not None
+        assert capshi.search(out) is None
+    # Case II: --no-lower is passed
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py {ipath} -m test --no-lower'.split())
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert capslo.search(out) is None
+        assert capshi.search(out) is not None
+
+
+def test_lower_sig(capfd, hello_world_f77, monkeypatch):
+    """Lowers cases in signature files by flag or when -h is present
+
+    CLI :: --[no-]lower -h
+    """
+    foutl = get_io_paths(hello_world_f77, mname="test")
+    ipath = foutl.finp
+    # Signature files
+    capshi = re.compile(r"Block: HI")
+    capslo = re.compile(r"Block: hi")
+    # Case I: --lower is implied by -h
+    # TODO: Clean up to prevent passing --overwrite-signature
+    monkeypatch.setattr(
+        sys,
+        "argv",
+        f'f2py {ipath} -h {foutl.pyf} -m test --overwrite-signature'.split(),
+    )
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert capslo.search(out) is not None
+        assert capshi.search(out) is None
+
+    # Case II: --no-lower overrides -h
+    monkeypatch.setattr(
+        sys,
+        "argv",
+        f'f2py {ipath} -h {foutl.pyf} -m test --overwrite-signature --no-lower'
+        .split(),
+    )
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert capslo.search(out) is None
+        assert capshi.search(out) is not None
+
+
+def test_build_dir(capfd, hello_world_f90, monkeypatch):
+    """Ensures that the build directory can be specified
+
+    CLI :: --build-dir
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    odir = "tttmp"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --build-dir {odir}'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert f"Wrote C/API module \"{mname}\"" in out
+
+
+def test_overwrite(capfd, hello_world_f90, monkeypatch):
+    """Ensures that the build directory can be specified
+
+    CLI :: --overwrite-signature
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(
+        sys, "argv",
+        f'f2py -h faker.pyf {ipath} --overwrite-signature'.split())
+
+    with util.switchdir(ipath.parent):
+        Path("faker.pyf").write_text("Fake news", encoding="ascii")
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Saving signatures to file" in out
+
+
+def test_latexdoc(capfd, hello_world_f90, monkeypatch):
+    """Ensures that TeX documentation is written out
+
+    CLI :: --latex-doc
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --latex-doc'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Documentation is saved to file" in out
+        with Path(f"{mname}module.tex").open() as otex:
+            assert "\\documentclass" in otex.read()
+
+
+def test_nolatexdoc(capfd, hello_world_f90, monkeypatch):
+    """Ensures that TeX documentation is written out
+
+    CLI :: --no-latex-doc
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --no-latex-doc'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Documentation is saved to file" not in out
+
+
+def test_shortlatex(capfd, hello_world_f90, monkeypatch):
+    """Ensures that truncated documentation is written out
+
+    TODO: Test to ensure this has no effect without --latex-doc
+    CLI :: --latex-doc --short-latex
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(
+        sys,
+        "argv",
+        f'f2py -m {mname} {ipath} --latex-doc --short-latex'.split(),
+    )
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Documentation is saved to file" in out
+        with Path(f"./{mname}module.tex").open() as otex:
+            assert "\\documentclass" not in otex.read()
+
+
+def test_restdoc(capfd, hello_world_f90, monkeypatch):
+    """Ensures that RsT documentation is written out
+
+    CLI :: --rest-doc
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --rest-doc'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "ReST Documentation is saved to file" in out
+        with Path(f"./{mname}module.rest").open() as orst:
+            assert r".. -*- rest -*-" in orst.read()
+
+
+def test_norestexdoc(capfd, hello_world_f90, monkeypatch):
+    """Ensures that TeX documentation is written out
+
+    CLI :: --no-rest-doc
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --no-rest-doc'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "ReST Documentation is saved to file" not in out
+
+
+def test_debugcapi(capfd, hello_world_f90, monkeypatch):
+    """Ensures that debugging wrappers are written
+
+    CLI :: --debug-capi
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --debug-capi'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        with Path(f"./{mname}module.c").open() as ocmod:
+            assert r"#define DEBUGCFUNCS" in ocmod.read()
+
+
+@pytest.mark.skip(reason="Consistently fails on CI; noisy so skip not xfail.")
+def test_debugcapi_bld(hello_world_f90, monkeypatch):
+    """Ensures that debugging wrappers work
+
+    CLI :: --debug-capi -c
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} -c --debug-capi'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        cmd_run = shlex.split(f"{sys.executable} -c \"import blah; blah.hi()\"")
+        rout = subprocess.run(cmd_run, capture_output=True, encoding='UTF-8')
+        eout = ' Hello World\n'
+        eerr = textwrap.dedent("""\
+debug-capi:Python C/API function blah.hi()
+debug-capi:float hi=:output,hidden,scalar
+debug-capi:hi=0
+debug-capi:Fortran subroutine `f2pywraphi(&hi)'
+debug-capi:hi=0
+debug-capi:Building return value.
+debug-capi:Python C/API function blah.hi: successful.
+debug-capi:Freeing memory.
+        """)
+        assert rout.stdout == eout
+        assert rout.stderr == eerr
+
+
+def test_wrapfunc_def(capfd, hello_world_f90, monkeypatch):
+    """Ensures that fortran subroutine wrappers for F77 are included by default
+
+    CLI :: --[no]-wrap-functions
+    """
+    # Implied
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv", f'f2py -m {mname} {ipath}'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+    out, _ = capfd.readouterr()
+    assert r"Fortran 77 wrappers are saved to" in out
+
+    # Explicit
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --wrap-functions'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert r"Fortran 77 wrappers are saved to" in out
+
+
+def test_nowrapfunc(capfd, hello_world_f90, monkeypatch):
+    """Ensures that fortran subroutine wrappers for F77 can be disabled
+
+    CLI :: --no-wrap-functions
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py -m {mname} {ipath} --no-wrap-functions'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert r"Fortran 77 wrappers are saved to" not in out
+
+
+def test_inclheader(capfd, hello_world_f90, monkeypatch):
+    """Add to the include directories
+
+    CLI :: -include
+    TODO: Document this in the help string
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    monkeypatch.setattr(
+        sys,
+        "argv",
+        f'f2py -m {mname} {ipath} -include<stdbool.h> -include<stdio.h> '.
+        split(),
+    )
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        with Path(f"./{mname}module.c").open() as ocmod:
+            ocmr = ocmod.read()
+            assert "#include <stdbool.h>" in ocmr
+            assert "#include <stdio.h>" in ocmr
+
+@pytest.mark.skipif((platform.system() != 'Linux'), reason='Compiler required')
+def test_cli_obj(capfd, hello_world_f90, monkeypatch):
+    """Ensures that the extra object can be specified when using meson backend
+    """
+    ipath = Path(hello_world_f90)
+    mname = "blah"
+    odir = "tttmp"
+    obj = "extra.o"
+    monkeypatch.setattr(sys, "argv",
+                        f'f2py --backend meson --build-dir {odir} -m {mname} -c {obj} {ipath}'.split())
+
+    with util.switchdir(ipath.parent):
+        Path(obj).touch()
+        compiler_check_f2pycli()
+        with Path(f"{odir}/meson.build").open() as mesonbuild:
+            mbld = mesonbuild.read()
+            assert "objects:" in mbld
+            assert f"'''{obj}'''" in mbld
+
+
+def test_inclpath():
+    """Add to the include directories
+
+    CLI :: --include-paths
+    """
+    # TODO: populate
+    pass
+
+
+def test_hlink():
+    """Add to the include directories
+
+    CLI :: --help-link
+    """
+    # TODO: populate
+    pass
+
+
+def test_f2cmap(capfd, f2cmap_f90, monkeypatch):
+    """Check that Fortran-to-Python KIND specs can be passed
+
+    CLI :: --f2cmap
+    """
+    ipath = Path(f2cmap_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --f2cmap mapfile'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "Reading f2cmap from 'mapfile' ..." in out
+        assert "Mapping \"real(kind=real32)\" to \"float\"" in out
+        assert "Mapping \"real(kind=real64)\" to \"double\"" in out
+        assert "Mapping \"integer(kind=int64)\" to \"long_long\"" in out
+        assert "Successfully applied user defined f2cmap changes" in out
+
+
+def test_quiet(capfd, hello_world_f90, monkeypatch):
+    """Reduce verbosity
+
+    CLI :: --quiet
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --quiet'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert len(out) == 0
+
+
+def test_verbose(capfd, hello_world_f90, monkeypatch):
+    """Increase verbosity
+
+    CLI :: --verbose
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} --verbose'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        assert "analyzeline" in out
+
+
+def test_version(capfd, monkeypatch):
+    """Ensure version
+
+    CLI :: -v
+    """
+    monkeypatch.setattr(sys, "argv", ["f2py", "-v"])
+    # TODO: f2py2e should not call sys.exit() after printing the version
+    with pytest.raises(SystemExit):
+        f2pycli()
+        out, _ = capfd.readouterr()
+        import numpy as np
+        assert np.__version__ == out.strip()
+
+
+@pytest.mark.skip(reason="Consistently fails on CI; noisy so skip not xfail.")
+def test_npdistop(hello_world_f90, monkeypatch):
+    """
+    CLI :: -c
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} -c'.split())
+
+    with util.switchdir(ipath.parent):
+        f2pycli()
+        cmd_run = shlex.split(f"{sys.executable} -c \"import blah; blah.hi()\"")
+        rout = subprocess.run(cmd_run, capture_output=True, encoding='UTF-8')
+        eout = ' Hello World\n'
+        assert rout.stdout == eout
+
+
+@pytest.mark.skipif((platform.system() != 'Linux') or sys.version_info <= (3, 12),
+                    reason='Compiler and Python 3.12 or newer required')
+def test_no_freethreading_compatible(hello_world_f90, monkeypatch):
+    """
+    CLI :: --no-freethreading-compatible
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} -c --no-freethreading-compatible'.split())
+
+    with util.switchdir(ipath.parent):
+        compiler_check_f2pycli()
+        cmd = f"{sys.executable} -c \"import blah; blah.hi();"
+        if NOGIL_BUILD:
+            cmd += "import sys; assert sys._is_gil_enabled() is True\""
+        else:
+            cmd += "\""
+        cmd_run = shlex.split(cmd)
+        rout = subprocess.run(cmd_run, capture_output=True, encoding='UTF-8')
+        eout = ' Hello World\n'
+        assert rout.stdout == eout
+        if NOGIL_BUILD:
+            assert "The global interpreter lock (GIL) has been enabled to load module 'blah'" in rout.stderr
+        assert rout.returncode == 0
+
+
+@pytest.mark.skipif((platform.system() != 'Linux') or sys.version_info <= (3, 12),
+                    reason='Compiler and Python 3.12 or newer required')
+def test_freethreading_compatible(hello_world_f90, monkeypatch):
+    """
+    CLI :: --freethreading_compatible
+    """
+    ipath = Path(hello_world_f90)
+    monkeypatch.setattr(sys, "argv", f'f2py -m blah {ipath} -c --freethreading-compatible'.split())
+
+    with util.switchdir(ipath.parent):
+        compiler_check_f2pycli()
+        cmd = f"{sys.executable} -c \"import blah; blah.hi();"
+        if NOGIL_BUILD:
+            cmd += "import sys; assert sys._is_gil_enabled() is False\""
+        else:
+            cmd += "\""
+        cmd_run = shlex.split(cmd)
+        rout = subprocess.run(cmd_run, capture_output=True, encoding='UTF-8')
+        eout = ' Hello World\n'
+        assert rout.stdout == eout
+        assert rout.stderr == ""
+        assert rout.returncode == 0
+
+
+# Numpy distutils flags
+# TODO: These should be tested separately
+
+def test_npd_fcompiler():
+    """
+    CLI :: -c --fcompiler
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_compiler():
+    """
+    CLI :: -c --compiler
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_help_fcompiler():
+    """
+    CLI :: -c --help-fcompiler
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_f77exec():
+    """
+    CLI :: -c --f77exec
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_f90exec():
+    """
+    CLI :: -c --f90exec
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_f77flags():
+    """
+    CLI :: -c --f77flags
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_f90flags():
+    """
+    CLI :: -c --f90flags
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_opt():
+    """
+    CLI :: -c --opt
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_arch():
+    """
+    CLI :: -c --arch
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_noopt():
+    """
+    CLI :: -c --noopt
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_noarch():
+    """
+    CLI :: -c --noarch
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_debug():
+    """
+    CLI :: -c --debug
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_link_auto():
+    """
+    CLI :: -c --link-<resource>
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_lib():
+    """
+    CLI :: -c -L/path/to/lib/ -l<libname>
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_define():
+    """
+    CLI :: -D<define>
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_undefine():
+    """
+    CLI :: -U<name>
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_incl():
+    """
+    CLI :: -I/path/to/include/
+    """
+    # TODO: populate
+    pass
+
+
+def test_npd_linker():
+    """
+    CLI :: <filename>.o <filename>.so <filename>.a
+    """
+    # TODO: populate
+    pass
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_isoc.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_isoc.py
new file mode 100644
index 0000000000000000000000000000000000000000..8b5ef3e329c83ff08c713b7f332b3880708c864e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_isoc.py
@@ -0,0 +1,56 @@
+import pytest
+
+import numpy as np
+from numpy.testing import assert_allclose
+
+from . import util
+
+
+class TestISOC(util.F2PyTest):
+    sources = [
+        util.getpath("tests", "src", "isocintrin", "isoCtests.f90"),
+    ]
+
+    # gh-24553
+    @pytest.mark.slow
+    def test_c_double(self):
+        out = self.module.coddity.c_add(1, 2)
+        exp_out = 3
+        assert out == exp_out
+
+    # gh-9693
+    def test_bindc_function(self):
+        out = self.module.coddity.wat(1, 20)
+        exp_out = 8
+        assert out == exp_out
+
+    # gh-25207
+    def test_bindc_kinds(self):
+        out = self.module.coddity.c_add_int64(1, 20)
+        exp_out = 21
+        assert out == exp_out
+
+    # gh-25207
+    def test_bindc_add_arr(self):
+        a = np.array([1, 2, 3])
+        b = np.array([1, 2, 3])
+        out = self.module.coddity.add_arr(a, b)
+        exp_out = a * 2
+        assert_allclose(out, exp_out)
+
+
+def test_process_f2cmap_dict():
+    from numpy.f2py.auxfuncs import process_f2cmap_dict
+
+    f2cmap_all = {"integer": {"8": "rubbish_type"}}
+    new_map = {"INTEGER": {"4": "int"}}
+    c2py_map = {"int": "int", "rubbish_type": "long"}
+
+    exp_map, exp_maptyp = ({"integer": {"8": "rubbish_type", "4": "int"}}, ["int"])
+
+    # Call the function
+    res_map, res_maptyp = process_f2cmap_dict(f2cmap_all, new_map, c2py_map)
+
+    # Assert the result is as expected
+    assert res_map == exp_map
+    assert res_maptyp == exp_maptyp
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_kind.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_kind.py
new file mode 100644
index 0000000000000000000000000000000000000000..1d594cd7e29d058def4044cba2feba7222902cb5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_kind.py
@@ -0,0 +1,52 @@
+import platform
+import sys
+
+import pytest
+
+from numpy.f2py.crackfortran import (
+    _selected_int_kind_func as selected_int_kind,
+    _selected_real_kind_func as selected_real_kind,
+)
+
+from . import util
+
+IS_PPC_OR_AIX = platform.machine().lower().startswith("ppc") or platform.system() == 'AIX'
+
+class TestKind(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "kind", "foo.f90")]
+
+    @pytest.mark.skipif(sys.maxsize < 2 ** 31 + 1,
+                        reason="Fails for 32 bit machines")
+    def test_int(self):
+        """Test `int` kind_func for integers up to 10**40."""
+        selectedintkind = self.module.selectedintkind
+
+        for i in range(40):
+            assert selectedintkind(i) == selected_int_kind(
+                i
+            ), f"selectedintkind({i}): expected {selected_int_kind(i)!r} but got {selectedintkind(i)!r}"
+
+    def test_real(self):
+        """
+        Test (processor-dependent) `real` kind_func for real numbers
+        of up to 31 digits precision (extended/quadruple).
+        """
+        selectedrealkind = self.module.selectedrealkind
+
+        for i in range(32):
+            assert selectedrealkind(i) == selected_real_kind(
+                i
+            ), f"selectedrealkind({i}): expected {selected_real_kind(i)!r} but got {selectedrealkind(i)!r}"
+
+    @pytest.mark.xfail(IS_PPC_OR_AIX,
+                       reason="Some PowerPC may not support full IEEE 754 precision")
+    def test_quad_precision(self):
+        """
+        Test kind_func for quadruple precision [`real(16)`] of 32+ digits .
+        """
+        selectedrealkind = self.module.selectedrealkind
+
+        for i in range(32, 40):
+            assert selectedrealkind(i) == selected_real_kind(
+                i
+            ), f"selectedrealkind({i}): expected {selected_real_kind(i)!r} but got {selectedrealkind(i)!r}"
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_mixed.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_mixed.py
new file mode 100644
index 0000000000000000000000000000000000000000..04e837a68f9ccbeb1258d385c42c1f281da60c77
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_mixed.py
@@ -0,0 +1,35 @@
+import textwrap
+
+import pytest
+
+from numpy.testing import IS_PYPY
+
+from . import util
+
+
+class TestMixed(util.F2PyTest):
+    sources = [
+        util.getpath("tests", "src", "mixed", "foo.f"),
+        util.getpath("tests", "src", "mixed", "foo_fixed.f90"),
+        util.getpath("tests", "src", "mixed", "foo_free.f90"),
+    ]
+
+    @pytest.mark.slow
+    def test_all(self):
+        assert self.module.bar11() == 11
+        assert self.module.foo_fixed.bar12() == 12
+        assert self.module.foo_free.bar13() == 13
+
+    @pytest.mark.xfail(IS_PYPY,
+                       reason="PyPy cannot modify tp_doc after PyType_Ready")
+    def test_docstring(self):
+        expected = textwrap.dedent("""\
+        a = bar11()
+
+        Wrapper for ``bar11``.
+
+        Returns
+        -------
+        a : int
+        """)
+        assert self.module.bar11.__doc__ == expected
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_modules.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_modules.py
new file mode 100644
index 0000000000000000000000000000000000000000..16c17ea267ed67d6035c9dd33a0c9b66373f2df9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_modules.py
@@ -0,0 +1,83 @@
+import textwrap
+
+import pytest
+
+from numpy.testing import IS_PYPY
+
+from . import util
+
+
+@pytest.mark.slow
+class TestModuleFilterPublicEntities(util.F2PyTest):
+    sources = [
+        util.getpath(
+            "tests", "src", "modules", "gh26920",
+            "two_mods_with_one_public_routine.f90"
+        )
+    ]
+    # we filter the only public function mod2
+    only = ["mod1_func1", ]
+
+    def test_gh26920(self):
+        # if it compiles and can be loaded, things are fine
+        pass
+
+
+@pytest.mark.slow
+class TestModuleWithoutPublicEntities(util.F2PyTest):
+    sources = [
+        util.getpath(
+            "tests", "src", "modules", "gh26920",
+            "two_mods_with_no_public_entities.f90"
+        )
+    ]
+    only = ["mod1_func1", ]
+
+    def test_gh26920(self):
+        # if it compiles and can be loaded, things are fine
+        pass
+
+
+@pytest.mark.slow
+class TestModuleDocString(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "modules", "module_data_docstring.f90")]
+
+    @pytest.mark.xfail(IS_PYPY, reason="PyPy cannot modify tp_doc after PyType_Ready")
+    def test_module_docstring(self):
+        assert self.module.mod.__doc__ == textwrap.dedent(
+            """\
+                     i : 'i'-scalar
+                     x : 'i'-array(4)
+                     a : 'f'-array(2,3)
+                     b : 'f'-array(-1,-1), not allocated\x00
+                     foo()\n
+                     Wrapper for ``foo``.\n\n"""
+        )
+
+
+@pytest.mark.slow
+class TestModuleAndSubroutine(util.F2PyTest):
+    module_name = "example"
+    sources = [
+        util.getpath("tests", "src", "modules", "gh25337", "data.f90"),
+        util.getpath("tests", "src", "modules", "gh25337", "use_data.f90"),
+    ]
+
+    def test_gh25337(self):
+        self.module.data.set_shift(3)
+        assert "data" in dir(self.module)
+
+
+@pytest.mark.slow
+class TestUsedModule(util.F2PyTest):
+    module_name = "fmath"
+    sources = [
+        util.getpath("tests", "src", "modules", "use_modules.f90"),
+    ]
+
+    def test_gh25867(self):
+        compiled_mods = [x for x in dir(self.module) if "__" not in x]
+        assert "useops" in compiled_mods
+        assert self.module.useops.sum_and_double(3, 7) == 20
+        assert "mathops" in compiled_mods
+        assert self.module.mathops.add(3, 7) == 10
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_parameter.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_parameter.py
new file mode 100644
index 0000000000000000000000000000000000000000..5007bb0c4f4f99b694ed70100c059a39258ee544
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_parameter.py
@@ -0,0 +1,129 @@
+import pytest
+
+import numpy as np
+
+from . import util
+
+
+class TestParameters(util.F2PyTest):
+    # Check that intent(in out) translates as intent(inout)
+    sources = [
+        util.getpath("tests", "src", "parameter", "constant_real.f90"),
+        util.getpath("tests", "src", "parameter", "constant_integer.f90"),
+        util.getpath("tests", "src", "parameter", "constant_both.f90"),
+        util.getpath("tests", "src", "parameter", "constant_compound.f90"),
+        util.getpath("tests", "src", "parameter", "constant_non_compound.f90"),
+        util.getpath("tests", "src", "parameter", "constant_array.f90"),
+    ]
+
+    @pytest.mark.slow
+    def test_constant_real_single(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.float32)[::2]
+        pytest.raises(ValueError, self.module.foo_single, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.float32)
+        self.module.foo_single(x)
+        assert np.allclose(x, [0 + 1 + 2 * 3, 1, 2])
+
+    @pytest.mark.slow
+    def test_constant_real_double(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.float64)[::2]
+        pytest.raises(ValueError, self.module.foo_double, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.float64)
+        self.module.foo_double(x)
+        assert np.allclose(x, [0 + 1 + 2 * 3, 1, 2])
+
+    @pytest.mark.slow
+    def test_constant_compound_int(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.int32)[::2]
+        pytest.raises(ValueError, self.module.foo_compound_int, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.int32)
+        self.module.foo_compound_int(x)
+        assert np.allclose(x, [0 + 1 + 2 * 6, 1, 2])
+
+    @pytest.mark.slow
+    def test_constant_non_compound_int(self):
+        # check values
+        x = np.arange(4, dtype=np.int32)
+        self.module.foo_non_compound_int(x)
+        assert np.allclose(x, [0 + 1 + 2 + 3 * 4, 1, 2, 3])
+
+    @pytest.mark.slow
+    def test_constant_integer_int(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.int32)[::2]
+        pytest.raises(ValueError, self.module.foo_int, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.int32)
+        self.module.foo_int(x)
+        assert np.allclose(x, [0 + 1 + 2 * 3, 1, 2])
+
+    @pytest.mark.slow
+    def test_constant_integer_long(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.int64)[::2]
+        pytest.raises(ValueError, self.module.foo_long, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.int64)
+        self.module.foo_long(x)
+        assert np.allclose(x, [0 + 1 + 2 * 3, 1, 2])
+
+    @pytest.mark.slow
+    def test_constant_both(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.float64)[::2]
+        pytest.raises(ValueError, self.module.foo, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.float64)
+        self.module.foo(x)
+        assert np.allclose(x, [0 + 1 * 3 * 3 + 2 * 3 * 3, 1 * 3, 2 * 3])
+
+    @pytest.mark.slow
+    def test_constant_no(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.float64)[::2]
+        pytest.raises(ValueError, self.module.foo_no, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.float64)
+        self.module.foo_no(x)
+        assert np.allclose(x, [0 + 1 * 3 * 3 + 2 * 3 * 3, 1 * 3, 2 * 3])
+
+    @pytest.mark.slow
+    def test_constant_sum(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.float64)[::2]
+        pytest.raises(ValueError, self.module.foo_sum, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.float64)
+        self.module.foo_sum(x)
+        assert np.allclose(x, [0 + 1 * 3 * 3 + 2 * 3 * 3, 1 * 3, 2 * 3])
+
+    def test_constant_array(self):
+        x = np.arange(3, dtype=np.float64)
+        y = np.arange(5, dtype=np.float64)
+        z = self.module.foo_array(x, y)
+        assert np.allclose(x, [0.0, 1. / 10, 2. / 10])
+        assert np.allclose(y, [0.0, 1. * 10, 2. * 10, 3. * 10, 4. * 10])
+        assert np.allclose(z, 19.0)
+
+    def test_constant_array_any_index(self):
+        x = np.arange(6, dtype=np.float64)
+        y = self.module.foo_array_any_index(x)
+        assert np.allclose(y, x.reshape((2, 3), order='F'))
+
+    def test_constant_array_delims(self):
+        x = self.module.foo_array_delims()
+        assert x == 9
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_pyf_src.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_pyf_src.py
new file mode 100644
index 0000000000000000000000000000000000000000..da5eeb57c35b74e8efe660efce459cf60c0b92c7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_pyf_src.py
@@ -0,0 +1,43 @@
+# This test is ported from numpy.distutils
+from numpy.f2py._src_pyf import process_str
+from numpy.testing import assert_equal
+
+pyf_src = """
+python module foo
+    <_rd=real,double precision>
+    interface
+        subroutine <s,d>foosub(tol)
+            <_rd>, intent(in,out) :: tol
+        end subroutine <s,d>foosub
+    end interface
+end python module foo
+"""
+
+expected_pyf = """
+python module foo
+    interface
+        subroutine sfoosub(tol)
+            real, intent(in,out) :: tol
+        end subroutine sfoosub
+        subroutine dfoosub(tol)
+            double precision, intent(in,out) :: tol
+        end subroutine dfoosub
+    end interface
+end python module foo
+"""
+
+
+def normalize_whitespace(s):
+    """
+    Remove leading and trailing whitespace, and convert internal
+    stretches of whitespace to a single space.
+    """
+    return ' '.join(s.split())
+
+
+def test_from_template():
+    """Regression test for gh-10712."""
+    pyf = process_str(pyf_src)
+    normalized_pyf = normalize_whitespace(pyf)
+    normalized_expected_pyf = normalize_whitespace(expected_pyf)
+    assert_equal(normalized_pyf, normalized_expected_pyf)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_quoted_character.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_quoted_character.py
new file mode 100644
index 0000000000000000000000000000000000000000..66bc1a6dc70e95b563129fea04f4a6f732e7e766
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_quoted_character.py
@@ -0,0 +1,18 @@
+"""See https://github.com/numpy/numpy/pull/10676.
+
+"""
+import sys
+
+import pytest
+
+from . import util
+
+
+class TestQuotedCharacter(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "quoted_character", "foo.f")]
+
+    @pytest.mark.skipif(sys.platform == "win32",
+                        reason="Fails with MinGW64 Gfortran (Issue #9673)")
+    @pytest.mark.slow
+    def test_quoted_character(self):
+        assert self.module.foo() == (b"'", b'"', b";", b"!", b"(", b")")
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..f88a5a1cc981c723685ed69e5d4e7df8bd0f5933
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_regression.py
@@ -0,0 +1,187 @@
+import os
+import platform
+
+import pytest
+
+import numpy as np
+import numpy.testing as npt
+
+from . import util
+
+
+class TestIntentInOut(util.F2PyTest):
+    # Check that intent(in out) translates as intent(inout)
+    sources = [util.getpath("tests", "src", "regression", "inout.f90")]
+
+    @pytest.mark.slow
+    def test_inout(self):
+        # non-contiguous should raise error
+        x = np.arange(6, dtype=np.float32)[::2]
+        pytest.raises(ValueError, self.module.foo, x)
+
+        # check values with contiguous array
+        x = np.arange(3, dtype=np.float32)
+        self.module.foo(x)
+        assert np.allclose(x, [3, 1, 2])
+
+
+class TestDataOnlyMultiModule(util.F2PyTest):
+    # Check that modules without subroutines work
+    sources = [util.getpath("tests", "src", "regression", "datonly.f90")]
+
+    @pytest.mark.slow
+    def test_mdat(self):
+        assert self.module.datonly.max_value == 100
+        assert self.module.dat.max_ == 1009
+        int_in = 5
+        assert self.module.simple_subroutine(5) == 1014
+
+
+class TestModuleWithDerivedType(util.F2PyTest):
+    # Check that modules with derived types work
+    sources = [util.getpath("tests", "src", "regression", "mod_derived_types.f90")]
+
+    @pytest.mark.slow
+    def test_mtypes(self):
+        assert self.module.no_type_subroutine(10) == 110
+        assert self.module.type_subroutine(10) == 210
+
+
+class TestNegativeBounds(util.F2PyTest):
+    # Check that negative bounds work correctly
+    sources = [util.getpath("tests", "src", "negative_bounds", "issue_20853.f90")]
+
+    @pytest.mark.slow
+    def test_negbound(self):
+        xvec = np.arange(12)
+        xlow = -6
+        xhigh = 4
+
+        # Calculate the upper bound,
+        # Keeping the 1 index in mind
+
+        def ubound(xl, xh):
+            return xh - xl + 1
+        rval = self.module.foo(is_=xlow, ie_=xhigh,
+                        arr=xvec[:ubound(xlow, xhigh)])
+        expval = np.arange(11, dtype=np.float32)
+        assert np.allclose(rval, expval)
+
+
+class TestNumpyVersionAttribute(util.F2PyTest):
+    # Check that th attribute __f2py_numpy_version__ is present
+    # in the compiled module and that has the value np.__version__.
+    sources = [util.getpath("tests", "src", "regression", "inout.f90")]
+
+    @pytest.mark.slow
+    def test_numpy_version_attribute(self):
+
+        # Check that self.module has an attribute named "__f2py_numpy_version__"
+        assert hasattr(self.module, "__f2py_numpy_version__")
+
+        # Check that the attribute __f2py_numpy_version__ is a string
+        assert isinstance(self.module.__f2py_numpy_version__, str)
+
+        # Check that __f2py_numpy_version__ has the value numpy.__version__
+        assert np.__version__ == self.module.__f2py_numpy_version__
+
+
+def test_include_path():
+    incdir = np.f2py.get_include()
+    fnames_in_dir = os.listdir(incdir)
+    for fname in ("fortranobject.c", "fortranobject.h"):
+        assert fname in fnames_in_dir
+
+
+class TestIncludeFiles(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "regression", "incfile.f90")]
+    options = [f"-I{util.getpath('tests', 'src', 'regression')}",
+               f"--include-paths {util.getpath('tests', 'src', 'regression')}"]
+
+    @pytest.mark.slow
+    def test_gh25344(self):
+        exp = 7.0
+        res = self.module.add(3.0, 4.0)
+        assert exp == res
+
+class TestF77Comments(util.F2PyTest):
+    # Check that comments are stripped from F77 continuation lines
+    sources = [util.getpath("tests", "src", "regression", "f77comments.f")]
+
+    @pytest.mark.slow
+    def test_gh26148(self):
+        x1 = np.array(3, dtype=np.int32)
+        x2 = np.array(5, dtype=np.int32)
+        res = self.module.testsub(x1, x2)
+        assert res[0] == 8
+        assert res[1] == 15
+
+    @pytest.mark.slow
+    def test_gh26466(self):
+        # Check that comments after PARAMETER directions are stripped
+        expected = np.arange(1, 11, dtype=np.float32) * 2
+        res = self.module.testsub2()
+        npt.assert_allclose(expected, res)
+
+class TestF90Contiuation(util.F2PyTest):
+    # Check that comments are stripped from F90 continuation lines
+    sources = [util.getpath("tests", "src", "regression", "f90continuation.f90")]
+
+    @pytest.mark.slow
+    def test_gh26148b(self):
+        x1 = np.array(3, dtype=np.int32)
+        x2 = np.array(5, dtype=np.int32)
+        res = self.module.testsub(x1, x2)
+        assert res[0] == 8
+        assert res[1] == 15
+
+class TestLowerF2PYDirectives(util.F2PyTest):
+    # Check variables are cased correctly
+    sources = [util.getpath("tests", "src", "regression", "lower_f2py_fortran.f90")]
+
+    @pytest.mark.slow
+    def test_gh28014(self):
+        self.module.inquire_next(3)
+        assert True
+
+@pytest.mark.slow
+def test_gh26623():
+    # Including libraries with . should not generate an incorrect meson.build
+    try:
+        aa = util.build_module(
+            [util.getpath("tests", "src", "regression", "f90continuation.f90")],
+            ["-lfoo.bar"],
+            module_name="Blah",
+        )
+    except RuntimeError as rerr:
+        assert "lparen got assign" not in str(rerr)
+
+
+@pytest.mark.slow
+@pytest.mark.skipif(platform.system() == "Windows", reason='Unsupported on this platform for now')
+def test_gh25784():
+    # Compile dubious file using passed flags
+    try:
+        aa = util.build_module(
+            [util.getpath("tests", "src", "regression", "f77fixedform.f95")],
+            options=[
+                # Meson will collect and dedup these to pass to fortran_args:
+                "--f77flags='-ffixed-form -O2'",
+                "--f90flags=\"-ffixed-form -g\"",
+            ],
+            module_name="Blah",
+        )
+    except ImportError as rerr:
+        assert "unknown_subroutine_" in str(rerr)
+
+
+@pytest.mark.slow
+class TestAssignmentOnlyModules(util.F2PyTest):
+    # Ensure that variables are exposed without functions or subroutines in a module
+    sources = [util.getpath("tests", "src", "regression", "assignOnlyModule.f90")]
+
+    @pytest.mark.slow
+    def test_gh27167(self):
+        assert (self.module.f_globals.n_max == 16)
+        assert (self.module.f_globals.i_max == 18)
+        assert (self.module.f_globals.j_max == 72)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_character.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_character.py
new file mode 100644
index 0000000000000000000000000000000000000000..c5ffa62543fc9dfe216d90b1e74bd88ac7d3a7f7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_character.py
@@ -0,0 +1,48 @@
+import platform
+
+import pytest
+
+from numpy import array
+
+from . import util
+
+IS_S390X = platform.machine() == "s390x"
+
+
+@pytest.mark.slow
+class TestReturnCharacter(util.F2PyTest):
+    def check_function(self, t, tname):
+        if tname in ["t0", "t1", "s0", "s1"]:
+            assert t("23") == b"2"
+            r = t("ab")
+            assert r == b"a"
+            r = t(array("ab"))
+            assert r == b"a"
+            r = t(array(77, "u1"))
+            assert r == b"M"
+        elif tname in ["ts", "ss"]:
+            assert t(23) == b"23"
+            assert t("123456789abcdef") == b"123456789a"
+        elif tname in ["t5", "s5"]:
+            assert t(23) == b"23"
+            assert t("ab") == b"ab"
+            assert t("123456789abcdef") == b"12345"
+        else:
+            raise NotImplementedError
+
+
+class TestFReturnCharacter(TestReturnCharacter):
+    sources = [
+        util.getpath("tests", "src", "return_character", "foo77.f"),
+        util.getpath("tests", "src", "return_character", "foo90.f90"),
+    ]
+
+    @pytest.mark.xfail(IS_S390X, reason="callback returns ' '")
+    @pytest.mark.parametrize("name", ["t0", "t1", "t5", "s0", "s1", "s5", "ss"])
+    def test_all_f77(self, name):
+        self.check_function(getattr(self.module, name), name)
+
+    @pytest.mark.xfail(IS_S390X, reason="callback returns ' '")
+    @pytest.mark.parametrize("name", ["t0", "t1", "t5", "ts", "s0", "s1", "s5", "ss"])
+    def test_all_f90(self, name):
+        self.check_function(getattr(self.module.f90_return_char, name), name)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_complex.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_complex.py
new file mode 100644
index 0000000000000000000000000000000000000000..e07ffaf0b269ff97bc758941cb4059c28983a112
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_complex.py
@@ -0,0 +1,67 @@
+import pytest
+
+from numpy import array
+
+from . import util
+
+
+@pytest.mark.slow
+class TestReturnComplex(util.F2PyTest):
+    def check_function(self, t, tname):
+        if tname in ["t0", "t8", "s0", "s8"]:
+            err = 1e-5
+        else:
+            err = 0.0
+        assert abs(t(234j) - 234.0j) <= err
+        assert abs(t(234.6) - 234.6) <= err
+        assert abs(t(234) - 234.0) <= err
+        assert abs(t(234.6 + 3j) - (234.6 + 3j)) <= err
+        # assert abs(t('234')-234.)<=err
+        # assert abs(t('234.6')-234.6)<=err
+        assert abs(t(-234) + 234.0) <= err
+        assert abs(t([234]) - 234.0) <= err
+        assert abs(t((234, )) - 234.0) <= err
+        assert abs(t(array(234)) - 234.0) <= err
+        assert abs(t(array(23 + 4j, "F")) - (23 + 4j)) <= err
+        assert abs(t(array([234])) - 234.0) <= err
+        assert abs(t(array([[234]])) - 234.0) <= err
+        assert abs(t(array([234]).astype("b")) + 22.0) <= err
+        assert abs(t(array([234], "h")) - 234.0) <= err
+        assert abs(t(array([234], "i")) - 234.0) <= err
+        assert abs(t(array([234], "l")) - 234.0) <= err
+        assert abs(t(array([234], "q")) - 234.0) <= err
+        assert abs(t(array([234], "f")) - 234.0) <= err
+        assert abs(t(array([234], "d")) - 234.0) <= err
+        assert abs(t(array([234 + 3j], "F")) - (234 + 3j)) <= err
+        assert abs(t(array([234], "D")) - 234.0) <= err
+
+        # pytest.raises(TypeError, t, array([234], 'S1'))
+        pytest.raises(TypeError, t, "abc")
+
+        pytest.raises(IndexError, t, [])
+        pytest.raises(IndexError, t, ())
+
+        pytest.raises(TypeError, t, t)
+        pytest.raises(TypeError, t, {})
+
+        try:
+            r = t(10**400)
+            assert repr(r) in ["(inf+0j)", "(Infinity+0j)"]
+        except OverflowError:
+            pass
+
+
+class TestFReturnComplex(TestReturnComplex):
+    sources = [
+        util.getpath("tests", "src", "return_complex", "foo77.f"),
+        util.getpath("tests", "src", "return_complex", "foo90.f90"),
+    ]
+
+    @pytest.mark.parametrize("name", ["t0", "t8", "t16", "td", "s0", "s8", "s16", "sd"])
+    def test_all_f77(self, name):
+        self.check_function(getattr(self.module, name), name)
+
+    @pytest.mark.parametrize("name", ["t0", "t8", "t16", "td", "s0", "s8", "s16", "sd"])
+    def test_all_f90(self, name):
+        self.check_function(getattr(self.module.f90_return_complex, name),
+                            name)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_integer.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_integer.py
new file mode 100644
index 0000000000000000000000000000000000000000..2cc71439362cfd0a7f0a9b9c23f47ffece0260e2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_integer.py
@@ -0,0 +1,55 @@
+import pytest
+
+from numpy import array
+
+from . import util
+
+
+@pytest.mark.slow
+class TestReturnInteger(util.F2PyTest):
+    def check_function(self, t, tname):
+        assert t(123) == 123
+        assert t(123.6) == 123
+        assert t("123") == 123
+        assert t(-123) == -123
+        assert t([123]) == 123
+        assert t((123, )) == 123
+        assert t(array(123)) == 123
+        assert t(array(123, "b")) == 123
+        assert t(array(123, "h")) == 123
+        assert t(array(123, "i")) == 123
+        assert t(array(123, "l")) == 123
+        assert t(array(123, "B")) == 123
+        assert t(array(123, "f")) == 123
+        assert t(array(123, "d")) == 123
+
+        # pytest.raises(ValueError, t, array([123],'S3'))
+        pytest.raises(ValueError, t, "abc")
+
+        pytest.raises(IndexError, t, [])
+        pytest.raises(IndexError, t, ())
+
+        pytest.raises(TypeError, t, t)
+        pytest.raises(TypeError, t, {})
+
+        if tname in ["t8", "s8"]:
+            pytest.raises(OverflowError, t, 100000000000000000000000)
+            pytest.raises(OverflowError, t, 10000000011111111111111.23)
+
+
+class TestFReturnInteger(TestReturnInteger):
+    sources = [
+        util.getpath("tests", "src", "return_integer", "foo77.f"),
+        util.getpath("tests", "src", "return_integer", "foo90.f90"),
+    ]
+
+    @pytest.mark.parametrize("name",
+                             ["t0", "t1", "t2", "t4", "t8", "s0", "s1", "s2", "s4", "s8"])
+    def test_all_f77(self, name):
+        self.check_function(getattr(self.module, name), name)
+
+    @pytest.mark.parametrize("name",
+                             ["t0", "t1", "t2", "t4", "t8", "s0", "s1", "s2", "s4", "s8"])
+    def test_all_f90(self, name):
+        self.check_function(getattr(self.module.f90_return_integer, name),
+                            name)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_logical.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_logical.py
new file mode 100644
index 0000000000000000000000000000000000000000..5264852e58c984b8608d9e843fd81c180fe428c1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_logical.py
@@ -0,0 +1,65 @@
+import pytest
+
+from numpy import array
+
+from . import util
+
+
+class TestReturnLogical(util.F2PyTest):
+    def check_function(self, t):
+        assert t(True) == 1
+        assert t(False) == 0
+        assert t(0) == 0
+        assert t(None) == 0
+        assert t(0.0) == 0
+        assert t(0j) == 0
+        assert t(1j) == 1
+        assert t(234) == 1
+        assert t(234.6) == 1
+        assert t(234.6 + 3j) == 1
+        assert t("234") == 1
+        assert t("aaa") == 1
+        assert t("") == 0
+        assert t([]) == 0
+        assert t(()) == 0
+        assert t({}) == 0
+        assert t(t) == 1
+        assert t(-234) == 1
+        assert t(10**100) == 1
+        assert t([234]) == 1
+        assert t((234, )) == 1
+        assert t(array(234)) == 1
+        assert t(array([234])) == 1
+        assert t(array([[234]])) == 1
+        assert t(array([127], "b")) == 1
+        assert t(array([234], "h")) == 1
+        assert t(array([234], "i")) == 1
+        assert t(array([234], "l")) == 1
+        assert t(array([234], "f")) == 1
+        assert t(array([234], "d")) == 1
+        assert t(array([234 + 3j], "F")) == 1
+        assert t(array([234], "D")) == 1
+        assert t(array(0)) == 0
+        assert t(array([0])) == 0
+        assert t(array([[0]])) == 0
+        assert t(array([0j])) == 0
+        assert t(array([1])) == 1
+        pytest.raises(ValueError, t, array([0, 0]))
+
+
+class TestFReturnLogical(TestReturnLogical):
+    sources = [
+        util.getpath("tests", "src", "return_logical", "foo77.f"),
+        util.getpath("tests", "src", "return_logical", "foo90.f90"),
+    ]
+
+    @pytest.mark.slow
+    @pytest.mark.parametrize("name", ["t0", "t1", "t2", "t4", "s0", "s1", "s2", "s4"])
+    def test_all_f77(self, name):
+        self.check_function(getattr(self.module, name))
+
+    @pytest.mark.slow
+    @pytest.mark.parametrize("name",
+                             ["t0", "t1", "t2", "t4", "t8", "s0", "s1", "s2", "s4", "s8"])
+    def test_all_f90(self, name):
+        self.check_function(getattr(self.module.f90_return_logical, name))
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_real.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_real.py
new file mode 100644
index 0000000000000000000000000000000000000000..97f73d361a2ee9fad18aa1dd9e03eae1e0245ae6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_return_real.py
@@ -0,0 +1,109 @@
+import platform
+
+import pytest
+
+from numpy import array
+from numpy.testing import IS_64BIT
+
+from . import util
+
+
+@pytest.mark.slow
+class TestReturnReal(util.F2PyTest):
+    def check_function(self, t, tname):
+        if tname in ["t0", "t4", "s0", "s4"]:
+            err = 1e-5
+        else:
+            err = 0.0
+        assert abs(t(234) - 234.0) <= err
+        assert abs(t(234.6) - 234.6) <= err
+        assert abs(t("234") - 234) <= err
+        assert abs(t("234.6") - 234.6) <= err
+        assert abs(t(-234) + 234) <= err
+        assert abs(t([234]) - 234) <= err
+        assert abs(t((234, )) - 234.0) <= err
+        assert abs(t(array(234)) - 234.0) <= err
+        assert abs(t(array(234).astype("b")) + 22) <= err
+        assert abs(t(array(234, "h")) - 234.0) <= err
+        assert abs(t(array(234, "i")) - 234.0) <= err
+        assert abs(t(array(234, "l")) - 234.0) <= err
+        assert abs(t(array(234, "B")) - 234.0) <= err
+        assert abs(t(array(234, "f")) - 234.0) <= err
+        assert abs(t(array(234, "d")) - 234.0) <= err
+        if tname in ["t0", "t4", "s0", "s4"]:
+            assert t(1e200) == t(1e300)  # inf
+
+        # pytest.raises(ValueError, t, array([234], 'S1'))
+        pytest.raises(ValueError, t, "abc")
+
+        pytest.raises(IndexError, t, [])
+        pytest.raises(IndexError, t, ())
+
+        pytest.raises(TypeError, t, t)
+        pytest.raises(TypeError, t, {})
+
+        try:
+            r = t(10**400)
+            assert repr(r) in ["inf", "Infinity"]
+        except OverflowError:
+            pass
+
+
+@pytest.mark.skipif(
+    platform.system() == "Darwin",
+    reason="Prone to error when run with numpy/f2py/tests on mac os, "
+    "but not when run in isolation",
+)
+@pytest.mark.skipif(
+    not IS_64BIT, reason="32-bit builds are buggy"
+)
+class TestCReturnReal(TestReturnReal):
+    suffix = ".pyf"
+    module_name = "c_ext_return_real"
+    code = """
+python module c_ext_return_real
+usercode \'\'\'
+float t4(float value) { return value; }
+void s4(float *t4, float value) { *t4 = value; }
+double t8(double value) { return value; }
+void s8(double *t8, double value) { *t8 = value; }
+\'\'\'
+interface
+  function t4(value)
+    real*4 intent(c) :: t4,value
+  end
+  function t8(value)
+    real*8 intent(c) :: t8,value
+  end
+  subroutine s4(t4,value)
+    intent(c) s4
+    real*4 intent(out) :: t4
+    real*4 intent(c) :: value
+  end
+  subroutine s8(t8,value)
+    intent(c) s8
+    real*8 intent(out) :: t8
+    real*8 intent(c) :: value
+  end
+end interface
+end python module c_ext_return_real
+    """
+
+    @pytest.mark.parametrize("name", ["t4", "t8", "s4", "s8"])
+    def test_all(self, name):
+        self.check_function(getattr(self.module, name), name)
+
+
+class TestFReturnReal(TestReturnReal):
+    sources = [
+        util.getpath("tests", "src", "return_real", "foo77.f"),
+        util.getpath("tests", "src", "return_real", "foo90.f90"),
+    ]
+
+    @pytest.mark.parametrize("name", ["t0", "t4", "t8", "td", "s0", "s4", "s8", "sd"])
+    def test_all_f77(self, name):
+        self.check_function(getattr(self.module, name), name)
+
+    @pytest.mark.parametrize("name", ["t0", "t4", "t8", "td", "s0", "s4", "s8", "sd"])
+    def test_all_f90(self, name):
+        self.check_function(getattr(self.module.f90_return_real, name), name)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_routines.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_routines.py
new file mode 100644
index 0000000000000000000000000000000000000000..39dfd564bbfc71b4e664f9659311adae1891ec5c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_routines.py
@@ -0,0 +1,29 @@
+import pytest
+
+from . import util
+
+
+@pytest.mark.slow
+class TestRenamedFunc(util.F2PyTest):
+    sources = [
+        util.getpath("tests", "src", "routines", "funcfortranname.f"),
+        util.getpath("tests", "src", "routines", "funcfortranname.pyf"),
+    ]
+    module_name = "funcfortranname"
+
+    def test_gh25799(self):
+        assert dir(self.module)
+        assert self.module.funcfortranname_default(200, 12) == 212
+
+
+@pytest.mark.slow
+class TestRenamedSubroutine(util.F2PyTest):
+    sources = [
+        util.getpath("tests", "src", "routines", "subrout.f"),
+        util.getpath("tests", "src", "routines", "subrout.pyf"),
+    ]
+    module_name = "subrout"
+
+    def test_renamed_subroutine(self):
+        assert dir(self.module)
+        assert self.module.subrout_default(200, 12) == 212
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_semicolon_split.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_semicolon_split.py
new file mode 100644
index 0000000000000000000000000000000000000000..f0b0ec96e6395b8c5f88dfe87c64d8c61390aad1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_semicolon_split.py
@@ -0,0 +1,75 @@
+import platform
+
+import pytest
+
+from numpy.testing import IS_64BIT
+
+from . import util
+
+
+@pytest.mark.skipif(
+    platform.system() == "Darwin",
+    reason="Prone to error when run with numpy/f2py/tests on mac os, "
+    "but not when run in isolation",
+)
+@pytest.mark.skipif(
+    not IS_64BIT, reason="32-bit builds are buggy"
+)
+class TestMultiline(util.F2PyTest):
+    suffix = ".pyf"
+    module_name = "multiline"
+    code = f"""
+python module {module_name}
+    usercode '''
+void foo(int* x) {{
+    char dummy = ';';
+    *x = 42;
+}}
+'''
+    interface
+        subroutine foo(x)
+            intent(c) foo
+            integer intent(out) :: x
+        end subroutine foo
+    end interface
+end python module {module_name}
+    """
+
+    def test_multiline(self):
+        assert self.module.foo() == 42
+
+
+@pytest.mark.skipif(
+    platform.system() == "Darwin",
+    reason="Prone to error when run with numpy/f2py/tests on mac os, "
+    "but not when run in isolation",
+)
+@pytest.mark.skipif(
+    not IS_64BIT, reason="32-bit builds are buggy"
+)
+@pytest.mark.slow
+class TestCallstatement(util.F2PyTest):
+    suffix = ".pyf"
+    module_name = "callstatement"
+    code = f"""
+python module {module_name}
+    usercode '''
+void foo(int* x) {{
+}}
+'''
+    interface
+        subroutine foo(x)
+            intent(c) foo
+            integer intent(out) :: x
+            callprotoargument int*
+            callstatement {{ &
+                ; &
+                x = 42; &
+            }}
+        end subroutine foo
+    end interface
+end python module {module_name}
+    """
+
+    def test_callstatement(self):
+        assert self.module.foo() == 42
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_size.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_size.py
new file mode 100644
index 0000000000000000000000000000000000000000..e2932345173ef6095a148b641158e5db9a8a2453
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_size.py
@@ -0,0 +1,45 @@
+import pytest
+
+import numpy as np
+
+from . import util
+
+
+class TestSizeSumExample(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "size", "foo.f90")]
+
+    @pytest.mark.slow
+    def test_all(self):
+        r = self.module.foo([[]])
+        assert r == [0]
+
+        r = self.module.foo([[1, 2]])
+        assert r == [3]
+
+        r = self.module.foo([[1, 2], [3, 4]])
+        assert np.allclose(r, [3, 7])
+
+        r = self.module.foo([[1, 2], [3, 4], [5, 6]])
+        assert np.allclose(r, [3, 7, 11])
+
+    @pytest.mark.slow
+    def test_transpose(self):
+        r = self.module.trans([[]])
+        assert np.allclose(r.T, np.array([[]]))
+
+        r = self.module.trans([[1, 2]])
+        assert np.allclose(r, [[1.], [2.]])
+
+        r = self.module.trans([[1, 2, 3], [4, 5, 6]])
+        assert np.allclose(r, [[1, 4], [2, 5], [3, 6]])
+
+    @pytest.mark.slow
+    def test_flatten(self):
+        r = self.module.flatten([[]])
+        assert np.allclose(r, [])
+
+        r = self.module.flatten([[1, 2]])
+        assert np.allclose(r, [1, 2])
+
+        r = self.module.flatten([[1, 2, 3], [4, 5, 6]])
+        assert np.allclose(r, [1, 2, 3, 4, 5, 6])
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_string.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_string.py
new file mode 100644
index 0000000000000000000000000000000000000000..c695f65231d9a940087dc208af888fd764dadaee
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_string.py
@@ -0,0 +1,100 @@
+import pytest
+
+import numpy as np
+
+from . import util
+
+
+class TestString(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "string", "char.f90")]
+
+    @pytest.mark.slow
+    def test_char(self):
+        strings = np.array(["ab", "cd", "ef"], dtype="c").T
+        inp, out = self.module.char_test.change_strings(
+            strings, strings.shape[1])
+        assert inp == pytest.approx(strings)
+        expected = strings.copy()
+        expected[1, :] = "AAA"
+        assert out == pytest.approx(expected)
+
+
+class TestDocStringArguments(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "string", "string.f")]
+
+    def test_example(self):
+        a = np.array(b"123\0\0")
+        b = np.array(b"123\0\0")
+        c = np.array(b"123")
+        d = np.array(b"123")
+
+        self.module.foo(a, b, c, d)
+
+        assert a.tobytes() == b"123\0\0"
+        assert b.tobytes() == b"B23\0\0"
+        assert c.tobytes() == b"123"
+        assert d.tobytes() == b"D23"
+
+
+class TestFixedString(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "string", "fixed_string.f90")]
+
+    @staticmethod
+    def _sint(s, start=0, end=None):
+        """Return the content of a string buffer as integer value.
+
+        For example:
+          _sint('1234') -> 4321
+          _sint('123A') -> 17321
+        """
+        if isinstance(s, np.ndarray):
+            s = s.tobytes()
+        elif isinstance(s, str):
+            s = s.encode()
+        assert isinstance(s, bytes)
+        if end is None:
+            end = len(s)
+        i = 0
+        for j in range(start, min(end, len(s))):
+            i += s[j] * 10**j
+        return i
+
+    def _get_input(self, intent="in"):
+        if intent in ["in"]:
+            yield ""
+            yield "1"
+            yield "1234"
+            yield "12345"
+            yield b""
+            yield b"\0"
+            yield b"1"
+            yield b"\01"
+            yield b"1\0"
+            yield b"1234"
+            yield b"12345"
+        yield np.ndarray((), np.bytes_, buffer=b"")  # array(b'', dtype='|S0')
+        yield np.array(b"")  # array(b'', dtype='|S1')
+        yield np.array(b"\0")
+        yield np.array(b"1")
+        yield np.array(b"1\0")
+        yield np.array(b"\01")
+        yield np.array(b"1234")
+        yield np.array(b"123\0")
+        yield np.array(b"12345")
+
+    def test_intent_in(self):
+        for s in self._get_input():
+            r = self.module.test_in_bytes4(s)
+            # also checks that s is not changed inplace
+            expected = self._sint(s, end=4)
+            assert r == expected, s
+
+    def test_intent_inout(self):
+        for s in self._get_input(intent="inout"):
+            rest = self._sint(s, start=4)
+            r = self.module.test_inout_bytes4(s)
+            expected = self._sint(s, end=4)
+            assert r == expected
+
+            # check that the rest of input string is preserved
+            assert rest == self._sint(s, start=4)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_symbolic.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_symbolic.py
new file mode 100644
index 0000000000000000000000000000000000000000..395790bbb675cafea8534d90d5fe7b3805959fc7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_symbolic.py
@@ -0,0 +1,500 @@
+import pytest
+
+from numpy.f2py.symbolic import (
+    ArithOp,
+    Expr,
+    Language,
+    Op,
+    as_apply,
+    as_array,
+    as_complex,
+    as_deref,
+    as_eq,
+    as_expr,
+    as_factors,
+    as_ge,
+    as_gt,
+    as_le,
+    as_lt,
+    as_ne,
+    as_number,
+    as_numer_denom,
+    as_ref,
+    as_string,
+    as_symbol,
+    as_terms,
+    as_ternary,
+    eliminate_quotes,
+    fromstring,
+    insert_quotes,
+    normalize,
+)
+
+from . import util
+
+
+class TestSymbolic(util.F2PyTest):
+    def test_eliminate_quotes(self):
+        def worker(s):
+            r, d = eliminate_quotes(s)
+            s1 = insert_quotes(r, d)
+            assert s1 == s
+
+        for kind in ["", "mykind_"]:
+            worker(kind + '"1234" // "ABCD"')
+            worker(kind + '"1234" // ' + kind + '"ABCD"')
+            worker(kind + "\"1234\" // 'ABCD'")
+            worker(kind + '"1234" // ' + kind + "'ABCD'")
+            worker(kind + '"1\\"2\'AB\'34"')
+            worker("a = " + kind + "'1\\'2\"AB\"34'")
+
+    def test_sanity(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+
+        assert x.op == Op.SYMBOL
+        assert repr(x) == "Expr(Op.SYMBOL, 'x')"
+        assert x == x
+        assert x != y
+        assert hash(x) is not None
+
+        n = as_number(123)
+        m = as_number(456)
+        assert n.op == Op.INTEGER
+        assert repr(n) == "Expr(Op.INTEGER, (123, 4))"
+        assert n == n
+        assert n != m
+        assert hash(n) is not None
+
+        fn = as_number(12.3)
+        fm = as_number(45.6)
+        assert fn.op == Op.REAL
+        assert repr(fn) == "Expr(Op.REAL, (12.3, 4))"
+        assert fn == fn
+        assert fn != fm
+        assert hash(fn) is not None
+
+        c = as_complex(1, 2)
+        c2 = as_complex(3, 4)
+        assert c.op == Op.COMPLEX
+        assert repr(c) == ("Expr(Op.COMPLEX, (Expr(Op.INTEGER, (1, 4)),"
+                           " Expr(Op.INTEGER, (2, 4))))")
+        assert c == c
+        assert c != c2
+        assert hash(c) is not None
+
+        s = as_string("'123'")
+        s2 = as_string('"ABC"')
+        assert s.op == Op.STRING
+        assert repr(s) == "Expr(Op.STRING, (\"'123'\", 1))", repr(s)
+        assert s == s
+        assert s != s2
+
+        a = as_array((n, m))
+        b = as_array((n, ))
+        assert a.op == Op.ARRAY
+        assert repr(a) == ("Expr(Op.ARRAY, (Expr(Op.INTEGER, (123, 4)),"
+                           " Expr(Op.INTEGER, (456, 4))))")
+        assert a == a
+        assert a != b
+
+        t = as_terms(x)
+        u = as_terms(y)
+        assert t.op == Op.TERMS
+        assert repr(t) == "Expr(Op.TERMS, {Expr(Op.SYMBOL, 'x'): 1})"
+        assert t == t
+        assert t != u
+        assert hash(t) is not None
+
+        v = as_factors(x)
+        w = as_factors(y)
+        assert v.op == Op.FACTORS
+        assert repr(v) == "Expr(Op.FACTORS, {Expr(Op.SYMBOL, 'x'): 1})"
+        assert v == v
+        assert w != v
+        assert hash(v) is not None
+
+        t = as_ternary(x, y, z)
+        u = as_ternary(x, z, y)
+        assert t.op == Op.TERNARY
+        assert t == t
+        assert t != u
+        assert hash(t) is not None
+
+        e = as_eq(x, y)
+        f = as_lt(x, y)
+        assert e.op == Op.RELATIONAL
+        assert e == e
+        assert e != f
+        assert hash(e) is not None
+
+    def test_tostring_fortran(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+        n = as_number(123)
+        m = as_number(456)
+        a = as_array((n, m))
+        c = as_complex(n, m)
+
+        assert str(x) == "x"
+        assert str(n) == "123"
+        assert str(a) == "[123, 456]"
+        assert str(c) == "(123, 456)"
+
+        assert str(Expr(Op.TERMS, {x: 1})) == "x"
+        assert str(Expr(Op.TERMS, {x: 2})) == "2 * x"
+        assert str(Expr(Op.TERMS, {x: -1})) == "-x"
+        assert str(Expr(Op.TERMS, {x: -2})) == "-2 * x"
+        assert str(Expr(Op.TERMS, {x: 1, y: 1})) == "x + y"
+        assert str(Expr(Op.TERMS, {x: -1, y: -1})) == "-x - y"
+        assert str(Expr(Op.TERMS, {x: 2, y: 3})) == "2 * x + 3 * y"
+        assert str(Expr(Op.TERMS, {x: -2, y: 3})) == "-2 * x + 3 * y"
+        assert str(Expr(Op.TERMS, {x: 2, y: -3})) == "2 * x - 3 * y"
+
+        assert str(Expr(Op.FACTORS, {x: 1})) == "x"
+        assert str(Expr(Op.FACTORS, {x: 2})) == "x ** 2"
+        assert str(Expr(Op.FACTORS, {x: -1})) == "x ** -1"
+        assert str(Expr(Op.FACTORS, {x: -2})) == "x ** -2"
+        assert str(Expr(Op.FACTORS, {x: 1, y: 1})) == "x * y"
+        assert str(Expr(Op.FACTORS, {x: 2, y: 3})) == "x ** 2 * y ** 3"
+
+        v = Expr(Op.FACTORS, {x: 2, Expr(Op.TERMS, {x: 1, y: 1}): 3})
+        assert str(v) == "x ** 2 * (x + y) ** 3", str(v)
+        v = Expr(Op.FACTORS, {x: 2, Expr(Op.FACTORS, {x: 1, y: 1}): 3})
+        assert str(v) == "x ** 2 * (x * y) ** 3", str(v)
+
+        assert str(Expr(Op.APPLY, ("f", (), {}))) == "f()"
+        assert str(Expr(Op.APPLY, ("f", (x, ), {}))) == "f(x)"
+        assert str(Expr(Op.APPLY, ("f", (x, y), {}))) == "f(x, y)"
+        assert str(Expr(Op.INDEXING, ("f", x))) == "f[x]"
+
+        assert str(as_ternary(x, y, z)) == "merge(y, z, x)"
+        assert str(as_eq(x, y)) == "x .eq. y"
+        assert str(as_ne(x, y)) == "x .ne. y"
+        assert str(as_lt(x, y)) == "x .lt. y"
+        assert str(as_le(x, y)) == "x .le. y"
+        assert str(as_gt(x, y)) == "x .gt. y"
+        assert str(as_ge(x, y)) == "x .ge. y"
+
+    def test_tostring_c(self):
+        language = Language.C
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+        n = as_number(123)
+
+        assert Expr(Op.FACTORS, {x: 2}).tostring(language=language) == "x * x"
+        assert (Expr(Op.FACTORS, {
+            x + y: 2
+        }).tostring(language=language) == "(x + y) * (x + y)")
+        assert Expr(Op.FACTORS, {
+            x: 12
+        }).tostring(language=language) == "pow(x, 12)"
+
+        assert as_apply(ArithOp.DIV, x,
+                        y).tostring(language=language) == "x / y"
+        assert (as_apply(ArithOp.DIV, x,
+                         x + y).tostring(language=language) == "x / (x + y)")
+        assert (as_apply(ArithOp.DIV, x - y, x +
+                         y).tostring(language=language) == "(x - y) / (x + y)")
+        assert (x + (x - y) / (x + y) +
+                n).tostring(language=language) == "123 + x + (x - y) / (x + y)"
+
+        assert as_ternary(x, y, z).tostring(language=language) == "(x?y:z)"
+        assert as_eq(x, y).tostring(language=language) == "x == y"
+        assert as_ne(x, y).tostring(language=language) == "x != y"
+        assert as_lt(x, y).tostring(language=language) == "x < y"
+        assert as_le(x, y).tostring(language=language) == "x <= y"
+        assert as_gt(x, y).tostring(language=language) == "x > y"
+        assert as_ge(x, y).tostring(language=language) == "x >= y"
+
+    def test_operations(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+
+        assert x + x == Expr(Op.TERMS, {x: 2})
+        assert x - x == Expr(Op.INTEGER, (0, 4))
+        assert x + y == Expr(Op.TERMS, {x: 1, y: 1})
+        assert x - y == Expr(Op.TERMS, {x: 1, y: -1})
+        assert x * x == Expr(Op.FACTORS, {x: 2})
+        assert x * y == Expr(Op.FACTORS, {x: 1, y: 1})
+
+        assert +x == x
+        assert -x == Expr(Op.TERMS, {x: -1}), repr(-x)
+        assert 2 * x == Expr(Op.TERMS, {x: 2})
+        assert 2 + x == Expr(Op.TERMS, {x: 1, as_number(1): 2})
+        assert 2 * x + 3 * y == Expr(Op.TERMS, {x: 2, y: 3})
+        assert (x + y) * 2 == Expr(Op.TERMS, {x: 2, y: 2})
+
+        assert x**2 == Expr(Op.FACTORS, {x: 2})
+        assert (x + y)**2 == Expr(
+            Op.TERMS,
+            {
+                Expr(Op.FACTORS, {x: 2}): 1,
+                Expr(Op.FACTORS, {y: 2}): 1,
+                Expr(Op.FACTORS, {
+                    x: 1,
+                    y: 1
+                }): 2,
+            },
+        )
+        assert (x + y) * x == x**2 + x * y
+        assert (x + y)**2 == x**2 + 2 * x * y + y**2
+        assert (x + y)**2 + (x - y)**2 == 2 * x**2 + 2 * y**2
+        assert (x + y) * z == x * z + y * z
+        assert z * (x + y) == x * z + y * z
+
+        assert (x / 2) == as_apply(ArithOp.DIV, x, as_number(2))
+        assert (2 * x / 2) == x
+        assert (3 * x / 2) == as_apply(ArithOp.DIV, 3 * x, as_number(2))
+        assert (4 * x / 2) == 2 * x
+        assert (5 * x / 2) == as_apply(ArithOp.DIV, 5 * x, as_number(2))
+        assert (6 * x / 2) == 3 * x
+        assert ((3 * 5) * x / 6) == as_apply(ArithOp.DIV, 5 * x, as_number(2))
+        assert (30 * x**2 * y**4 / (24 * x**3 * y**3)) == as_apply(
+            ArithOp.DIV, 5 * y, 4 * x)
+        assert ((15 * x / 6) / 5) == as_apply(ArithOp.DIV, x,
+                                              as_number(2)), (15 * x / 6) / 5
+        assert (x / (5 / x)) == as_apply(ArithOp.DIV, x**2, as_number(5))
+
+        assert (x / 2.0) == Expr(Op.TERMS, {x: 0.5})
+
+        s = as_string('"ABC"')
+        t = as_string('"123"')
+
+        assert s // t == Expr(Op.STRING, ('"ABC123"', 1))
+        assert s // x == Expr(Op.CONCAT, (s, x))
+        assert x // s == Expr(Op.CONCAT, (x, s))
+
+        c = as_complex(1.0, 2.0)
+        assert -c == as_complex(-1.0, -2.0)
+        assert c + c == as_expr((1 + 2j) * 2)
+        assert c * c == as_expr((1 + 2j)**2)
+
+    def test_substitute(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+        a = as_array((x, y))
+
+        assert x.substitute({x: y}) == y
+        assert (x + y).substitute({x: z}) == y + z
+        assert (x * y).substitute({x: z}) == y * z
+        assert (x**4).substitute({x: z}) == z**4
+        assert (x / y).substitute({x: z}) == z / y
+        assert x.substitute({x: y + z}) == y + z
+        assert a.substitute({x: y + z}) == as_array((y + z, y))
+
+        assert as_ternary(x, y,
+                          z).substitute({x: y + z}) == as_ternary(y + z, y, z)
+        assert as_eq(x, y).substitute({x: y + z}) == as_eq(y + z, y)
+
+    def test_fromstring(self):
+
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+        f = as_symbol("f")
+        s = as_string('"ABC"')
+        t = as_string('"123"')
+        a = as_array((x, y))
+
+        assert fromstring("x") == x
+        assert fromstring("+ x") == x
+        assert fromstring("-  x") == -x
+        assert fromstring("x + y") == x + y
+        assert fromstring("x + 1") == x + 1
+        assert fromstring("x * y") == x * y
+        assert fromstring("x * 2") == x * 2
+        assert fromstring("x / y") == x / y
+        assert fromstring("x ** 2", language=Language.Python) == x**2
+        assert fromstring("x ** 2 ** 3", language=Language.Python) == x**2**3
+        assert fromstring("(x + y) * z") == (x + y) * z
+
+        assert fromstring("f(x)") == f(x)
+        assert fromstring("f(x,y)") == f(x, y)
+        assert fromstring("f[x]") == f[x]
+        assert fromstring("f[x][y]") == f[x][y]
+
+        assert fromstring('"ABC"') == s
+        assert (normalize(
+            fromstring('"ABC" // "123" ',
+                       language=Language.Fortran)) == s // t)
+        assert fromstring('f("ABC")') == f(s)
+        assert fromstring('MYSTRKIND_"ABC"') == as_string('"ABC"', "MYSTRKIND")
+
+        assert fromstring("(/x, y/)") == a, fromstring("(/x, y/)")
+        assert fromstring("f((/x, y/))") == f(a)
+        assert fromstring("(/(x+y)*z/)") == as_array(((x + y) * z, ))
+
+        assert fromstring("123") == as_number(123)
+        assert fromstring("123_2") == as_number(123, 2)
+        assert fromstring("123_myintkind") == as_number(123, "myintkind")
+
+        assert fromstring("123.0") == as_number(123.0, 4)
+        assert fromstring("123.0_4") == as_number(123.0, 4)
+        assert fromstring("123.0_8") == as_number(123.0, 8)
+        assert fromstring("123.0e0") == as_number(123.0, 4)
+        assert fromstring("123.0d0") == as_number(123.0, 8)
+        assert fromstring("123d0") == as_number(123.0, 8)
+        assert fromstring("123e-0") == as_number(123.0, 4)
+        assert fromstring("123d+0") == as_number(123.0, 8)
+        assert fromstring("123.0_myrealkind") == as_number(123.0, "myrealkind")
+        assert fromstring("3E4") == as_number(30000.0, 4)
+
+        assert fromstring("(1, 2)") == as_complex(1, 2)
+        assert fromstring("(1e2, PI)") == as_complex(as_number(100.0),
+                                                     as_symbol("PI"))
+
+        assert fromstring("[1, 2]") == as_array((as_number(1), as_number(2)))
+
+        assert fromstring("POINT(x, y=1)") == as_apply(as_symbol("POINT"),
+                                                       x,
+                                                       y=as_number(1))
+        assert fromstring(
+            'PERSON(name="John", age=50, shape=(/34, 23/))') == as_apply(
+                as_symbol("PERSON"),
+                name=as_string('"John"'),
+                age=as_number(50),
+                shape=as_array((as_number(34), as_number(23))),
+            )
+
+        assert fromstring("x?y:z") == as_ternary(x, y, z)
+
+        assert fromstring("*x") == as_deref(x)
+        assert fromstring("**x") == as_deref(as_deref(x))
+        assert fromstring("&x") == as_ref(x)
+        assert fromstring("(*x) * (*y)") == as_deref(x) * as_deref(y)
+        assert fromstring("(*x) * *y") == as_deref(x) * as_deref(y)
+        assert fromstring("*x * *y") == as_deref(x) * as_deref(y)
+        assert fromstring("*x**y") == as_deref(x) * as_deref(y)
+
+        assert fromstring("x == y") == as_eq(x, y)
+        assert fromstring("x != y") == as_ne(x, y)
+        assert fromstring("x < y") == as_lt(x, y)
+        assert fromstring("x > y") == as_gt(x, y)
+        assert fromstring("x <= y") == as_le(x, y)
+        assert fromstring("x >= y") == as_ge(x, y)
+
+        assert fromstring("x .eq. y", language=Language.Fortran) == as_eq(x, y)
+        assert fromstring("x .ne. y", language=Language.Fortran) == as_ne(x, y)
+        assert fromstring("x .lt. y", language=Language.Fortran) == as_lt(x, y)
+        assert fromstring("x .gt. y", language=Language.Fortran) == as_gt(x, y)
+        assert fromstring("x .le. y", language=Language.Fortran) == as_le(x, y)
+        assert fromstring("x .ge. y", language=Language.Fortran) == as_ge(x, y)
+
+    def test_traverse(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+        f = as_symbol("f")
+
+        # Use traverse to substitute a symbol
+        def replace_visit(s, r=z):
+            if s == x:
+                return r
+
+        assert x.traverse(replace_visit) == z
+        assert y.traverse(replace_visit) == y
+        assert z.traverse(replace_visit) == z
+        assert (f(y)).traverse(replace_visit) == f(y)
+        assert (f(x)).traverse(replace_visit) == f(z)
+        assert (f[y]).traverse(replace_visit) == f[y]
+        assert (f[z]).traverse(replace_visit) == f[z]
+        assert (x + y + z).traverse(replace_visit) == (2 * z + y)
+        assert (x +
+                f(y, x - z)).traverse(replace_visit) == (z +
+                                                         f(y, as_number(0)))
+        assert as_eq(x, y).traverse(replace_visit) == as_eq(z, y)
+
+        # Use traverse to collect symbols, method 1
+        function_symbols = set()
+        symbols = set()
+
+        def collect_symbols(s):
+            if s.op is Op.APPLY:
+                oper = s.data[0]
+                function_symbols.add(oper)
+                if oper in symbols:
+                    symbols.remove(oper)
+            elif s.op is Op.SYMBOL and s not in function_symbols:
+                symbols.add(s)
+
+        (x + f(y, x - z)).traverse(collect_symbols)
+        assert function_symbols == {f}
+        assert symbols == {x, y, z}
+
+        # Use traverse to collect symbols, method 2
+        def collect_symbols2(expr, symbols):
+            if expr.op is Op.SYMBOL:
+                symbols.add(expr)
+
+        symbols = set()
+        (x + f(y, x - z)).traverse(collect_symbols2, symbols)
+        assert symbols == {x, y, z, f}
+
+        # Use traverse to partially collect symbols
+        def collect_symbols3(expr, symbols):
+            if expr.op is Op.APPLY:
+                # skip traversing function calls
+                return expr
+            if expr.op is Op.SYMBOL:
+                symbols.add(expr)
+
+        symbols = set()
+        (x + f(y, x - z)).traverse(collect_symbols3, symbols)
+        assert symbols == {x}
+
+    def test_linear_solve(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        z = as_symbol("z")
+
+        assert x.linear_solve(x) == (as_number(1), as_number(0))
+        assert (x + 1).linear_solve(x) == (as_number(1), as_number(1))
+        assert (2 * x).linear_solve(x) == (as_number(2), as_number(0))
+        assert (2 * x + 3).linear_solve(x) == (as_number(2), as_number(3))
+        assert as_number(3).linear_solve(x) == (as_number(0), as_number(3))
+        assert y.linear_solve(x) == (as_number(0), y)
+        assert (y * z).linear_solve(x) == (as_number(0), y * z)
+
+        assert (x + y).linear_solve(x) == (as_number(1), y)
+        assert (z * x + y).linear_solve(x) == (z, y)
+        assert ((z + y) * x + y).linear_solve(x) == (z + y, y)
+        assert (z * y * x + y).linear_solve(x) == (z * y, y)
+
+        pytest.raises(RuntimeError, lambda: (x * x).linear_solve(x))
+
+    def test_as_numer_denom(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        n = as_number(123)
+
+        assert as_numer_denom(x) == (x, as_number(1))
+        assert as_numer_denom(x / n) == (x, n)
+        assert as_numer_denom(n / x) == (n, x)
+        assert as_numer_denom(x / y) == (x, y)
+        assert as_numer_denom(x * y) == (x * y, as_number(1))
+        assert as_numer_denom(n + x / y) == (x + n * y, y)
+        assert as_numer_denom(n + x / (y - x / n)) == (y * n**2, y * n - x)
+
+    def test_polynomial_atoms(self):
+        x = as_symbol("x")
+        y = as_symbol("y")
+        n = as_number(123)
+
+        assert x.polynomial_atoms() == {x}
+        assert n.polynomial_atoms() == set()
+        assert (y[x]).polynomial_atoms() == {y[x]}
+        assert (y(x)).polynomial_atoms() == {y(x)}
+        assert (y(x) + x).polynomial_atoms() == {y(x), x}
+        assert (y(x) * x[y]).polynomial_atoms() == {y(x), x[y]}
+        assert (y(x)**x).polynomial_atoms() == {y(x)}
+
+    def test_unmatched_parenthesis_gh30268(self):
+        #gh - 30268
+        with pytest.raises(ValueError, match=r"Mismatch of \(\) parenthesis"):
+            Expr.parse("DATA (A, I=1, N", language=Language.Fortran)
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_value_attrspec.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_value_attrspec.py
new file mode 100644
index 0000000000000000000000000000000000000000..bf7f53795b6cc78c814a732883d3331af640e11f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/test_value_attrspec.py
@@ -0,0 +1,15 @@
+import pytest
+
+from . import util
+
+
+class TestValueAttr(util.F2PyTest):
+    sources = [util.getpath("tests", "src", "value_attrspec", "gh21665.f90")]
+
+    # gh-21665
+    @pytest.mark.slow
+    def test_gh21665(self):
+        inp = 2
+        out = self.module.fortfuncs.square(inp)
+        exp_out = 4
+        assert out == exp_out
diff --git a/python/user_packages/Python313/site-packages/numpy/f2py/tests/util.py b/python/user_packages/Python313/site-packages/numpy/f2py/tests/util.py
new file mode 100644
index 0000000000000000000000000000000000000000..0aa28e0cd1659a4198f7e4674ae694fd95643132
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/f2py/tests/util.py
@@ -0,0 +1,442 @@
+"""
+Utility functions for
+
+- building and importing modules on test time, using a temporary location
+- detecting if compilers are present
+- determining paths to tests
+
+"""
+import atexit
+import concurrent.futures
+import contextlib
+import glob
+import os
+import shutil
+import subprocess
+import sys
+import tempfile
+from importlib import import_module
+from pathlib import Path
+
+import pytest
+
+import numpy
+from numpy._utils import asunicode
+from numpy.f2py._backends._meson import MesonBackend
+from numpy.testing import IS_WASM, temppath
+
+#
+# Check if compilers are available at all...
+#
+
+def check_language(lang, code_snippet=None):
+    if sys.platform == "win32":
+        pytest.skip("No Fortran tests on Windows (Issue #25134)", allow_module_level=True)
+    tmpdir = tempfile.mkdtemp()
+    try:
+        meson_file = os.path.join(tmpdir, "meson.build")
+        with open(meson_file, "w") as f:
+            f.write("project('check_compilers')\n")
+            f.write(f"add_languages('{lang}')\n")
+            if code_snippet:
+                f.write(f"{lang}_compiler = meson.get_compiler('{lang}')\n")
+                f.write(f"{lang}_code = '''{code_snippet}'''\n")
+                f.write(
+                    f"_have_{lang}_feature ="
+                    f"{lang}_compiler.compiles({lang}_code,"
+                    f" name: '{lang} feature check')\n"
+                )
+        try:
+            runmeson = subprocess.run(
+                ["meson", "setup", "btmp"],
+                check=False,
+                cwd=tmpdir,
+                capture_output=True,
+            )
+        except subprocess.CalledProcessError:
+            pytest.skip("meson not present, skipping compiler dependent test", allow_module_level=True)
+        return runmeson.returncode == 0
+    finally:
+        shutil.rmtree(tmpdir)
+
+
+fortran77_code = '''
+C Example Fortran 77 code
+      PROGRAM HELLO
+      PRINT *, 'Hello, Fortran 77!'
+      END
+'''
+
+fortran90_code = '''
+! Example Fortran 90 code
+program hello90
+  type :: greeting
+    character(len=20) :: text
+  end type greeting
+
+  type(greeting) :: greet
+  greet%text = 'hello, fortran 90!'
+  print *, greet%text
+end program hello90
+'''
+
+# Dummy class for caching relevant checks
+class CompilerChecker:
+    def __init__(self):
+        self.compilers_checked = False
+        self.has_c = False
+        self.has_f77 = False
+        self.has_f90 = False
+
+    def check_compilers(self):
+        if (not self.compilers_checked) and (not sys.platform == "cygwin"):
+            with concurrent.futures.ThreadPoolExecutor() as executor:
+                futures = [
+                    executor.submit(check_language, "c"),
+                    executor.submit(check_language, "fortran", fortran77_code),
+                    executor.submit(check_language, "fortran", fortran90_code)
+                ]
+
+                self.has_c = futures[0].result()
+                self.has_f77 = futures[1].result()
+                self.has_f90 = futures[2].result()
+
+            self.compilers_checked = True
+
+
+if not IS_WASM:
+    checker = CompilerChecker()
+    checker.check_compilers()
+
+def has_c_compiler():
+    return checker.has_c
+
+def has_f77_compiler():
+    return checker.has_f77
+
+def has_f90_compiler():
+    return checker.has_f90
+
+def has_fortran_compiler():
+    return (checker.has_f90 and checker.has_f77)
+
+
+#
+# Maintaining a temporary module directory
+#
+
+_module_dir = None
+_module_num = 5403
+
+if sys.platform == "cygwin":
+    NUMPY_INSTALL_ROOT = Path(__file__).parent.parent.parent
+    _module_list = list(NUMPY_INSTALL_ROOT.glob("**/*.dll"))
+
+
+def _cleanup():
+    global _module_dir
+    if _module_dir is not None:
+        try:
+            sys.path.remove(_module_dir)
+        except ValueError:
+            pass
+        try:
+            shutil.rmtree(_module_dir)
+        except OSError:
+            pass
+        _module_dir = None
+
+
+def get_module_dir():
+    global _module_dir
+    if _module_dir is None:
+        _module_dir = tempfile.mkdtemp()
+        atexit.register(_cleanup)
+        if _module_dir not in sys.path:
+            sys.path.insert(0, _module_dir)
+    return _module_dir
+
+
+def get_temp_module_name():
+    # Assume single-threaded, and the module dir usable only by this thread
+    global _module_num
+    get_module_dir()
+    name = "_test_ext_module_%d" % _module_num
+    _module_num += 1
+    if name in sys.modules:
+        # this should not be possible, but check anyway
+        raise RuntimeError("Temporary module name already in use.")
+    return name
+
+
+def _memoize(func):
+    memo = {}
+
+    def wrapper(*a, **kw):
+        key = repr((a, kw))
+        if key not in memo:
+            try:
+                memo[key] = func(*a, **kw)
+            except Exception as e:
+                memo[key] = e
+                raise
+        ret = memo[key]
+        if isinstance(ret, Exception):
+            raise ret
+        return ret
+
+    wrapper.__name__ = func.__name__
+    return wrapper
+
+
+#
+# Building modules
+#
+
+
+@_memoize
+def build_module(source_files, options=[], skip=[], only=[], module_name=None):
+    """
+    Compile and import a f2py module, built from the given files.
+
+    """
+
+    code = f"import sys; sys.path = {sys.path!r}; import numpy.f2py; numpy.f2py.main()"
+
+    d = get_module_dir()
+    # gh-27045 : Skip if no compilers are found
+    if not has_fortran_compiler():
+        pytest.skip("No Fortran compiler available")
+
+    # Copy files
+    dst_sources = []
+    f2py_sources = []
+    for fn in source_files:
+        if not os.path.isfile(fn):
+            raise RuntimeError(f"{fn} is not a file")
+        dst = os.path.join(d, os.path.basename(fn))
+        shutil.copyfile(fn, dst)
+        dst_sources.append(dst)
+
+        base, ext = os.path.splitext(dst)
+        if ext in (".f90", ".f95", ".f", ".c", ".pyf"):
+            f2py_sources.append(dst)
+
+    assert f2py_sources
+
+    # Prepare options
+    if module_name is None:
+        module_name = get_temp_module_name()
+    gil_options = []
+    if '--freethreading-compatible' not in options and '--no-freethreading-compatible' not in options:
+        # default to disabling the GIL if unset in options
+        gil_options = ['--freethreading-compatible']
+    f2py_opts = ["-c", "-m", module_name] + options + gil_options + f2py_sources
+    f2py_opts += ["--backend", "meson"]
+    if skip:
+        f2py_opts += ["skip:"] + skip
+    if only:
+        f2py_opts += ["only:"] + only
+
+    # Build
+    cwd = os.getcwd()
+    try:
+        os.chdir(d)
+        cmd = [sys.executable, "-c", code] + f2py_opts
+        p = subprocess.Popen(cmd,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.STDOUT)
+        out, err = p.communicate()
+        if p.returncode != 0:
+            raise RuntimeError(f"Running f2py failed: {cmd[4:]}\n{asunicode(out)}")
+    finally:
+        os.chdir(cwd)
+
+        # Partial cleanup
+        for fn in dst_sources:
+            os.unlink(fn)
+
+    # Rebase (Cygwin-only)
+    if sys.platform == "cygwin":
+        # If someone starts deleting modules after import, this will
+        # need to change to record how big each module is, rather than
+        # relying on rebase being able to find that from the files.
+        _module_list.extend(
+            glob.glob(os.path.join(d, f"{module_name:s}*"))
+        )
+        subprocess.check_call(
+            ["/usr/bin/rebase", "--database", "--oblivious", "--verbose"]
+            + _module_list
+        )
+
+    # Import
+    return import_module(module_name)
+
+
+@_memoize
+def build_code(source_code,
+               options=[],
+               skip=[],
+               only=[],
+               suffix=None,
+               module_name=None):
+    """
+    Compile and import Fortran code using f2py.
+
+    """
+    if suffix is None:
+        suffix = ".f"
+    with temppath(suffix=suffix) as path:
+        with open(path, "w") as f:
+            f.write(source_code)
+        return build_module([path],
+                            options=options,
+                            skip=skip,
+                            only=only,
+                            module_name=module_name)
+
+
+#
+# Building with meson
+#
+
+
+class SimplifiedMesonBackend(MesonBackend):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    def compile(self):
+        self.write_meson_build(self.build_dir)
+        self.run_meson(self.build_dir)
+
+
+def build_meson(source_files, module_name=None, **kwargs):
+    """
+    Build a module via Meson and import it.
+    """
+
+    # gh-27045 : Skip if no compilers are found
+    if not has_fortran_compiler():
+        pytest.skip("No Fortran compiler available")
+
+    build_dir = get_module_dir()
+    if module_name is None:
+        module_name = get_temp_module_name()
+
+    # Initialize the MesonBackend
+    backend = SimplifiedMesonBackend(
+        modulename=module_name,
+        sources=source_files,
+        extra_objects=kwargs.get("extra_objects", []),
+        build_dir=build_dir,
+        include_dirs=kwargs.get("include_dirs", []),
+        library_dirs=kwargs.get("library_dirs", []),
+        libraries=kwargs.get("libraries", []),
+        define_macros=kwargs.get("define_macros", []),
+        undef_macros=kwargs.get("undef_macros", []),
+        f2py_flags=kwargs.get("f2py_flags", []),
+        sysinfo_flags=kwargs.get("sysinfo_flags", []),
+        fc_flags=kwargs.get("fc_flags", []),
+        flib_flags=kwargs.get("flib_flags", []),
+        setup_flags=kwargs.get("setup_flags", []),
+        remove_build_dir=kwargs.get("remove_build_dir", False),
+        extra_dat=kwargs.get("extra_dat", {}),
+    )
+
+    backend.compile()
+
+    # Import the compiled module
+    sys.path.insert(0, f"{build_dir}/{backend.meson_build_dir}")
+    return import_module(module_name)
+
+
+#
+# Unittest convenience
+#
+
+
+class F2PyTest:
+    code = None
+    sources = None
+    options = []
+    skip = []
+    only = []
+    suffix = ".f"
+    module = None
+    _has_c_compiler = None
+    _has_f77_compiler = None
+    _has_f90_compiler = None
+
+    @property
+    def module_name(self):
+        cls = type(self)
+        return f'_{cls.__module__.rsplit(".", 1)[-1]}_{cls.__name__}_ext_module'
+
+    @classmethod
+    def setup_class(cls):
+        if sys.platform == "win32":
+            pytest.skip("Fails with MinGW64 Gfortran (Issue #9673)")
+        F2PyTest._has_c_compiler = has_c_compiler()
+        F2PyTest._has_f77_compiler = has_f77_compiler()
+        F2PyTest._has_f90_compiler = has_f90_compiler()
+        F2PyTest._has_fortran_compiler = has_fortran_compiler()
+
+    def setup_method(self):
+        if self.module is not None:
+            return
+
+        codes = self.sources or []
+        if self.code:
+            codes.append(self.suffix)
+
+        needs_f77 = any(str(fn).endswith(".f") for fn in codes)
+        needs_f90 = any(str(fn).endswith(".f90") for fn in codes)
+        needs_pyf = any(str(fn).endswith(".pyf") for fn in codes)
+
+        if needs_f77 and not self._has_f77_compiler:
+            pytest.skip("No Fortran 77 compiler available")
+        if needs_f90 and not self._has_f90_compiler:
+            pytest.skip("No Fortran 90 compiler available")
+        if needs_pyf and not self._has_fortran_compiler:
+            pytest.skip("No Fortran compiler available")
+
+        # Build the module
+        if self.code is not None:
+            self.module = build_code(
+                self.code,
+                options=self.options,
+                skip=self.skip,
+                only=self.only,
+                suffix=self.suffix,
+                module_name=self.module_name,
+            )
+
+        if self.sources is not None:
+            self.module = build_module(
+                self.sources,
+                options=self.options,
+                skip=self.skip,
+                only=self.only,
+                module_name=self.module_name,
+            )
+
+
+#
+# Helper functions
+#
+
+
+def getpath(*a):
+    # Package root
+    d = Path(numpy.f2py.__file__).parent.resolve()
+    return d.joinpath(*a)
+
+
+@contextlib.contextmanager
+def switchdir(path):
+    curpath = Path.cwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(curpath)
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--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/fft/tests/test_helper.py
@@ -0,0 +1,167 @@
+"""Test functions for fftpack.helper module
+
+Copied from fftpack.helper by Pearu Peterson, October 2005
+
+"""
+import numpy as np
+from numpy import fft, pi
+from numpy.testing import assert_array_almost_equal
+
+
+class TestFFTShift:
+
+    def test_definition(self):
+        x = [0, 1, 2, 3, 4, -4, -3, -2, -1]
+        y = [-4, -3, -2, -1, 0, 1, 2, 3, 4]
+        assert_array_almost_equal(fft.fftshift(x), y)
+        assert_array_almost_equal(fft.ifftshift(y), x)
+        x = [0, 1, 2, 3, 4, -5, -4, -3, -2, -1]
+        y = [-5, -4, -3, -2, -1, 0, 1, 2, 3, 4]
+        assert_array_almost_equal(fft.fftshift(x), y)
+        assert_array_almost_equal(fft.ifftshift(y), x)
+
+    def test_inverse(self):
+        for n in [1, 4, 9, 100, 211]:
+            x = np.random.random((n,))
+            assert_array_almost_equal(fft.ifftshift(fft.fftshift(x)), x)
+
+    def test_axes_keyword(self):
+        freqs = [[0, 1, 2], [3, 4, -4], [-3, -2, -1]]
+        shifted = [[-1, -3, -2], [2, 0, 1], [-4, 3, 4]]
+        assert_array_almost_equal(fft.fftshift(freqs, axes=(0, 1)), shifted)
+        assert_array_almost_equal(fft.fftshift(freqs, axes=0),
+                                  fft.fftshift(freqs, axes=(0,)))
+        assert_array_almost_equal(fft.ifftshift(shifted, axes=(0, 1)), freqs)
+        assert_array_almost_equal(fft.ifftshift(shifted, axes=0),
+                                  fft.ifftshift(shifted, axes=(0,)))
+
+        assert_array_almost_equal(fft.fftshift(freqs), shifted)
+        assert_array_almost_equal(fft.ifftshift(shifted), freqs)
+
+    def test_uneven_dims(self):
+        """ Test 2D input, which has uneven dimension sizes """
+        freqs = [
+            [0, 1],
+            [2, 3],
+            [4, 5]
+        ]
+
+        # shift in dimension 0
+        shift_dim0 = [
+            [4, 5],
+            [0, 1],
+            [2, 3]
+        ]
+        assert_array_almost_equal(fft.fftshift(freqs, axes=0), shift_dim0)
+        assert_array_almost_equal(fft.ifftshift(shift_dim0, axes=0), freqs)
+        assert_array_almost_equal(fft.fftshift(freqs, axes=(0,)), shift_dim0)
+        assert_array_almost_equal(fft.ifftshift(shift_dim0, axes=[0]), freqs)
+
+        # shift in dimension 1
+        shift_dim1 = [
+            [1, 0],
+            [3, 2],
+            [5, 4]
+        ]
+        assert_array_almost_equal(fft.fftshift(freqs, axes=1), shift_dim1)
+        assert_array_almost_equal(fft.ifftshift(shift_dim1, axes=1), freqs)
+
+        # shift in both dimensions
+        shift_dim_both = [
+            [5, 4],
+            [1, 0],
+            [3, 2]
+        ]
+        assert_array_almost_equal(fft.fftshift(freqs, axes=(0, 1)), shift_dim_both)
+        assert_array_almost_equal(fft.ifftshift(shift_dim_both, axes=(0, 1)), freqs)
+        assert_array_almost_equal(fft.fftshift(freqs, axes=[0, 1]), shift_dim_both)
+        assert_array_almost_equal(fft.ifftshift(shift_dim_both, axes=[0, 1]), freqs)
+
+        # axes=None (default) shift in all dimensions
+        assert_array_almost_equal(fft.fftshift(freqs, axes=None), shift_dim_both)
+        assert_array_almost_equal(fft.ifftshift(shift_dim_both, axes=None), freqs)
+        assert_array_almost_equal(fft.fftshift(freqs), shift_dim_both)
+        assert_array_almost_equal(fft.ifftshift(shift_dim_both), freqs)
+
+    def test_equal_to_original(self):
+        """ Test the new (>=v1.15) and old implementations are equal (see #10073) """
+        from numpy._core import arange, asarray, concatenate, take
+
+        def original_fftshift(x, axes=None):
+            """ How fftshift was implemented in v1.14"""
+            tmp = asarray(x)
+            ndim = tmp.ndim
+            if axes is None:
+                axes = list(range(ndim))
+            elif isinstance(axes, int):
+                axes = (axes,)
+            y = tmp
+            for k in axes:
+                n = tmp.shape[k]
+                p2 = (n + 1) // 2
+                mylist = concatenate((arange(p2, n), arange(p2)))
+                y = take(y, mylist, k)
+            return y
+
+        def original_ifftshift(x, axes=None):
+            """ How ifftshift was implemented in v1.14 """
+            tmp = asarray(x)
+            ndim = tmp.ndim
+            if axes is None:
+                axes = list(range(ndim))
+            elif isinstance(axes, int):
+                axes = (axes,)
+            y = tmp
+            for k in axes:
+                n = tmp.shape[k]
+                p2 = n - (n + 1) // 2
+                mylist = concatenate((arange(p2, n), arange(p2)))
+                y = take(y, mylist, k)
+            return y
+
+        # create possible 2d array combinations and try all possible keywords
+        # compare output to original functions
+        for i in range(16):
+            for j in range(16):
+                for axes_keyword in [0, 1, None, (0,), (0, 1)]:
+                    inp = np.random.rand(i, j)
+
+                    assert_array_almost_equal(fft.fftshift(inp, axes_keyword),
+                                              original_fftshift(inp, axes_keyword))
+
+                    assert_array_almost_equal(fft.ifftshift(inp, axes_keyword),
+                                              original_ifftshift(inp, axes_keyword))
+
+
+class TestFFTFreq:
+
+    def test_definition(self):
+        x = [0, 1, 2, 3, 4, -4, -3, -2, -1]
+        assert_array_almost_equal(9 * fft.fftfreq(9), x)
+        assert_array_almost_equal(9 * pi * fft.fftfreq(9, pi), x)
+        x = [0, 1, 2, 3, 4, -5, -4, -3, -2, -1]
+        assert_array_almost_equal(10 * fft.fftfreq(10), x)
+        assert_array_almost_equal(10 * pi * fft.fftfreq(10, pi), x)
+
+
+class TestRFFTFreq:
+
+    def test_definition(self):
+        x = [0, 1, 2, 3, 4]
+        assert_array_almost_equal(9 * fft.rfftfreq(9), x)
+        assert_array_almost_equal(9 * pi * fft.rfftfreq(9, pi), x)
+        x = [0, 1, 2, 3, 4, 5]
+        assert_array_almost_equal(10 * fft.rfftfreq(10), x)
+        assert_array_almost_equal(10 * pi * fft.rfftfreq(10, pi), x)
+
+
+class TestIRFFTN:
+
+    def test_not_last_axis_success(self):
+        ar, ai = np.random.random((2, 16, 8, 32))
+        a = ar + 1j * ai
+
+        axes = (-2,)
+
+        # Should not raise error
+        fft.irfftn(a, axes=axes)
diff --git a/python/user_packages/Python313/site-packages/numpy/fft/tests/test_pocketfft.py b/python/user_packages/Python313/site-packages/numpy/fft/tests/test_pocketfft.py
new file mode 100644
index 0000000000000000000000000000000000000000..0367cc5c6258072b609281b7956308c2230feb8f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/fft/tests/test_pocketfft.py
@@ -0,0 +1,589 @@
+import queue
+import threading
+
+import pytest
+
+import numpy as np
+from numpy.random import random
+from numpy.testing import IS_WASM, assert_allclose, assert_array_equal, assert_raises
+
+
+def fft1(x):
+    L = len(x)
+    phase = -2j * np.pi * (np.arange(L) / L)
+    phase = np.arange(L).reshape(-1, 1) * phase
+    return np.sum(x * np.exp(phase), axis=1)
+
+
+class TestFFTShift:
+
+    def test_fft_n(self):
+        assert_raises(ValueError, np.fft.fft, [1, 2, 3], 0)
+
+
+class TestFFT1D:
+
+    def test_identity(self):
+        maxlen = 512
+        x = random(maxlen) + 1j * random(maxlen)
+        xr = random(maxlen)
+        for i in range(1, maxlen):
+            assert_allclose(np.fft.ifft(np.fft.fft(x[0:i])), x[0:i],
+                            atol=1e-12)
+            assert_allclose(np.fft.irfft(np.fft.rfft(xr[0:i]), i),
+                            xr[0:i], atol=1e-12)
+
+    @pytest.mark.parametrize("dtype", [np.single, np.double, np.longdouble])
+    def test_identity_long_short(self, dtype):
+        # Test with explicitly given number of points, both for n
+        # smaller and for n larger than the input size.
+        maxlen = 16
+        atol = 5 * np.spacing(np.array(1., dtype=dtype))
+        x = random(maxlen).astype(dtype) + 1j * random(maxlen).astype(dtype)
+        xx = np.concatenate([x, np.zeros_like(x)])
+        xr = random(maxlen).astype(dtype)
+        xxr = np.concatenate([xr, np.zeros_like(xr)])
+        for i in range(1, maxlen * 2):
+            check_c = np.fft.ifft(np.fft.fft(x, n=i), n=i)
+            assert check_c.real.dtype == dtype
+            assert_allclose(check_c, xx[0:i], atol=atol, rtol=0)
+            check_r = np.fft.irfft(np.fft.rfft(xr, n=i), n=i)
+            assert check_r.dtype == dtype
+            assert_allclose(check_r, xxr[0:i], atol=atol, rtol=0)
+
+    @pytest.mark.parametrize("dtype", [np.single, np.double, np.longdouble])
+    def test_identity_long_short_reversed(self, dtype):
+        # Also test explicitly given number of points in reversed order.
+        maxlen = 16
+        atol = 6 * np.spacing(np.array(1., dtype=dtype))
+        x = random(maxlen).astype(dtype) + 1j * random(maxlen).astype(dtype)
+        xx = np.concatenate([x, np.zeros_like(x)])
+        for i in range(1, maxlen * 2):
+            check_via_c = np.fft.fft(np.fft.ifft(x, n=i), n=i)
+            assert check_via_c.dtype == x.dtype
+            assert_allclose(check_via_c, xx[0:i], atol=atol, rtol=0)
+            # For irfft, we can neither recover the imaginary part of
+            # the first element, nor the imaginary part of the last
+            # element if npts is even.  So, set to 0 for the comparison.
+            y = x.copy()
+            n = i // 2 + 1
+            y.imag[0] = 0
+            if i % 2 == 0:
+                y.imag[n - 1:] = 0
+            yy = np.concatenate([y, np.zeros_like(y)])
+            check_via_r = np.fft.rfft(np.fft.irfft(x, n=i), n=i)
+            assert check_via_r.dtype == x.dtype
+            assert_allclose(check_via_r, yy[0:n], atol=atol, rtol=0)
+
+    def test_fft(self):
+        x = random(30) + 1j * random(30)
+        assert_allclose(fft1(x), np.fft.fft(x), atol=1e-6)
+        assert_allclose(fft1(x), np.fft.fft(x, norm="backward"), atol=1e-6)
+        assert_allclose(fft1(x) / np.sqrt(30),
+                        np.fft.fft(x, norm="ortho"), atol=1e-6)
+        assert_allclose(fft1(x) / 30.,
+                        np.fft.fft(x, norm="forward"), atol=1e-6)
+
+    @pytest.mark.parametrize("axis", (0, 1))
+    @pytest.mark.parametrize("dtype", (complex, float))
+    @pytest.mark.parametrize("transpose", (True, False))
+    def test_fft_out_argument(self, dtype, transpose, axis):
+        def zeros_like(x):
+            if transpose:
+                return np.zeros_like(x.T).T
+            else:
+                return np.zeros_like(x)
+
+        # tests below only test the out parameter
+        if dtype is complex:
+            y = random((10, 20)) + 1j * random((10, 20))
+            fft, ifft = np.fft.fft, np.fft.ifft
+        else:
+            y = random((10, 20))
+            fft, ifft = np.fft.rfft, np.fft.irfft
+
+        expected = fft(y, axis=axis)
+        out = zeros_like(expected)
+        result = fft(y, out=out, axis=axis)
+        assert result is out
+        assert_array_equal(result, expected)
+
+        expected2 = ifft(expected, axis=axis)
+        out2 = out if dtype is complex else zeros_like(expected2)
+        result2 = ifft(out, out=out2, axis=axis)
+        assert result2 is out2
+        assert_array_equal(result2, expected2)
+
+    @pytest.mark.parametrize("axis", [0, 1])
+    def test_fft_inplace_out(self, axis):
+        # Test some weirder in-place combinations
+        y = random((20, 20)) + 1j * random((20, 20))
+        # Fully in-place.
+        y1 = y.copy()
+        expected1 = np.fft.fft(y1, axis=axis)
+        result1 = np.fft.fft(y1, axis=axis, out=y1)
+        assert result1 is y1
+        assert_array_equal(result1, expected1)
+        # In-place of part of the array; rest should be unchanged.
+        y2 = y.copy()
+        out2 = y2[:10] if axis == 0 else y2[:, :10]
+        expected2 = np.fft.fft(y2, n=10, axis=axis)
+        result2 = np.fft.fft(y2, n=10, axis=axis, out=out2)
+        assert result2 is out2
+        assert_array_equal(result2, expected2)
+        if axis == 0:
+            assert_array_equal(y2[10:], y[10:])
+        else:
+            assert_array_equal(y2[:, 10:], y[:, 10:])
+        # In-place of another part of the array.
+        y3 = y.copy()
+        y3_sel = y3[5:] if axis == 0 else y3[:, 5:]
+        out3 = y3[5:15] if axis == 0 else y3[:, 5:15]
+        expected3 = np.fft.fft(y3_sel, n=10, axis=axis)
+        result3 = np.fft.fft(y3_sel, n=10, axis=axis, out=out3)
+        assert result3 is out3
+        assert_array_equal(result3, expected3)
+        if axis == 0:
+            assert_array_equal(y3[:5], y[:5])
+            assert_array_equal(y3[15:], y[15:])
+        else:
+            assert_array_equal(y3[:, :5], y[:, :5])
+            assert_array_equal(y3[:, 15:], y[:, 15:])
+        # In-place with n > nin; rest should be unchanged.
+        y4 = y.copy()
+        y4_sel = y4[:10] if axis == 0 else y4[:, :10]
+        out4 = y4[:15] if axis == 0 else y4[:, :15]
+        expected4 = np.fft.fft(y4_sel, n=15, axis=axis)
+        result4 = np.fft.fft(y4_sel, n=15, axis=axis, out=out4)
+        assert result4 is out4
+        assert_array_equal(result4, expected4)
+        if axis == 0:
+            assert_array_equal(y4[15:], y[15:])
+        else:
+            assert_array_equal(y4[:, 15:], y[:, 15:])
+        # Overwrite in a transpose.
+        y5 = y.copy()
+        out5 = y5.T
+        result5 = np.fft.fft(y5, axis=axis, out=out5)
+        assert result5 is out5
+        assert_array_equal(result5, expected1)
+        # Reverse strides.
+        y6 = y.copy()
+        out6 = y6[::-1] if axis == 0 else y6[:, ::-1]
+        result6 = np.fft.fft(y6, axis=axis, out=out6)
+        assert result6 is out6
+        assert_array_equal(result6, expected1)
+
+    def test_fft_bad_out(self):
+        x = np.arange(30.)
+        with pytest.raises(TypeError, match="must be of ArrayType"):
+            np.fft.fft(x, out="")
+        with pytest.raises(ValueError, match="has wrong shape"):
+            np.fft.fft(x, out=np.zeros_like(x).reshape(5, -1))
+        with pytest.raises(TypeError, match="Cannot cast"):
+            np.fft.fft(x, out=np.zeros_like(x, dtype=float))
+
+    @pytest.mark.parametrize('norm', (None, 'backward', 'ortho', 'forward'))
+    def test_ifft(self, norm):
+        x = random(30) + 1j * random(30)
+        assert_allclose(
+            x, np.fft.ifft(np.fft.fft(x, norm=norm), norm=norm),
+            atol=1e-6)
+        # Ensure we get the correct error message
+        with pytest.raises(ValueError,
+                           match='Invalid number of FFT data points'):
+            np.fft.ifft([], norm=norm)
+
+    def test_fft2(self):
+        x = random((30, 20)) + 1j * random((30, 20))
+        assert_allclose(np.fft.fft(np.fft.fft(x, axis=1), axis=0),
+                        np.fft.fft2(x), atol=1e-6)
+        assert_allclose(np.fft.fft2(x),
+                        np.fft.fft2(x, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.fft2(x) / np.sqrt(30 * 20),
+                        np.fft.fft2(x, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.fft2(x) / (30. * 20.),
+                        np.fft.fft2(x, norm="forward"), atol=1e-6)
+
+    def test_ifft2(self):
+        x = random((30, 20)) + 1j * random((30, 20))
+        assert_allclose(np.fft.ifft(np.fft.ifft(x, axis=1), axis=0),
+                        np.fft.ifft2(x), atol=1e-6)
+        assert_allclose(np.fft.ifft2(x),
+                        np.fft.ifft2(x, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.ifft2(x) * np.sqrt(30 * 20),
+                        np.fft.ifft2(x, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.ifft2(x) * (30. * 20.),
+                        np.fft.ifft2(x, norm="forward"), atol=1e-6)
+
+    def test_fftn(self):
+        x = random((30, 20, 10)) + 1j * random((30, 20, 10))
+        assert_allclose(
+            np.fft.fft(np.fft.fft(np.fft.fft(x, axis=2), axis=1), axis=0),
+            np.fft.fftn(x), atol=1e-6)
+        assert_allclose(np.fft.fftn(x),
+                        np.fft.fftn(x, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.fftn(x) / np.sqrt(30 * 20 * 10),
+                        np.fft.fftn(x, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.fftn(x) / (30. * 20. * 10.),
+                        np.fft.fftn(x, norm="forward"), atol=1e-6)
+
+    def test_ifftn(self):
+        x = random((30, 20, 10)) + 1j * random((30, 20, 10))
+        assert_allclose(
+            np.fft.ifft(np.fft.ifft(np.fft.ifft(x, axis=2), axis=1), axis=0),
+            np.fft.ifftn(x), atol=1e-6)
+        assert_allclose(np.fft.ifftn(x),
+                        np.fft.ifftn(x, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.ifftn(x) * np.sqrt(30 * 20 * 10),
+                        np.fft.ifftn(x, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.ifftn(x) * (30. * 20. * 10.),
+                        np.fft.ifftn(x, norm="forward"), atol=1e-6)
+
+    def test_rfft(self):
+        x = random(30)
+        for n in [x.size, 2 * x.size]:
+            for norm in [None, 'backward', 'ortho', 'forward']:
+                assert_allclose(
+                    np.fft.fft(x, n=n, norm=norm)[:(n // 2 + 1)],
+                    np.fft.rfft(x, n=n, norm=norm), atol=1e-6)
+            assert_allclose(
+                np.fft.rfft(x, n=n),
+                np.fft.rfft(x, n=n, norm="backward"), atol=1e-6)
+            assert_allclose(
+                np.fft.rfft(x, n=n) / np.sqrt(n),
+                np.fft.rfft(x, n=n, norm="ortho"), atol=1e-6)
+            assert_allclose(
+                np.fft.rfft(x, n=n) / n,
+                np.fft.rfft(x, n=n, norm="forward"), atol=1e-6)
+
+    def test_rfft_even(self):
+        x = np.arange(8)
+        n = 4
+        y = np.fft.rfft(x, n)
+        assert_allclose(y, np.fft.fft(x[:n])[:n // 2 + 1], rtol=1e-14)
+
+    def test_rfft_odd(self):
+        x = np.array([1, 0, 2, 3, -3])
+        y = np.fft.rfft(x)
+        assert_allclose(y, np.fft.fft(x)[:3], rtol=1e-14)
+
+    def test_irfft(self):
+        x = random(30)
+        assert_allclose(x, np.fft.irfft(np.fft.rfft(x)), atol=1e-6)
+        assert_allclose(x, np.fft.irfft(np.fft.rfft(x, norm="backward"),
+                        norm="backward"), atol=1e-6)
+        assert_allclose(x, np.fft.irfft(np.fft.rfft(x, norm="ortho"),
+                        norm="ortho"), atol=1e-6)
+        assert_allclose(x, np.fft.irfft(np.fft.rfft(x, norm="forward"),
+                        norm="forward"), atol=1e-6)
+
+    def test_rfft2(self):
+        x = random((30, 20))
+        assert_allclose(np.fft.fft2(x)[:, :11], np.fft.rfft2(x), atol=1e-6)
+        assert_allclose(np.fft.rfft2(x),
+                        np.fft.rfft2(x, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.rfft2(x) / np.sqrt(30 * 20),
+                        np.fft.rfft2(x, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.rfft2(x) / (30. * 20.),
+                        np.fft.rfft2(x, norm="forward"), atol=1e-6)
+
+    def test_irfft2(self):
+        x = random((30, 20))
+        assert_allclose(x, np.fft.irfft2(np.fft.rfft2(x)), atol=1e-6)
+        assert_allclose(x, np.fft.irfft2(np.fft.rfft2(x, norm="backward"),
+                        norm="backward"), atol=1e-6)
+        assert_allclose(x, np.fft.irfft2(np.fft.rfft2(x, norm="ortho"),
+                        norm="ortho"), atol=1e-6)
+        assert_allclose(x, np.fft.irfft2(np.fft.rfft2(x, norm="forward"),
+                        norm="forward"), atol=1e-6)
+
+    def test_rfftn(self):
+        x = random((30, 20, 10))
+        assert_allclose(np.fft.fftn(x)[:, :, :6], np.fft.rfftn(x), atol=1e-6)
+        assert_allclose(np.fft.rfftn(x),
+                        np.fft.rfftn(x, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.rfftn(x) / np.sqrt(30 * 20 * 10),
+                        np.fft.rfftn(x, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.rfftn(x) / (30. * 20. * 10.),
+                        np.fft.rfftn(x, norm="forward"), atol=1e-6)
+        # Regression test for gh-27159
+        x = np.ones((2, 3))
+        result = np.fft.rfftn(x, axes=(0, 0, 1), s=(10, 20, 40))
+        assert result.shape == (10, 21)
+        expected = np.fft.fft(np.fft.fft(np.fft.rfft(x, axis=1, n=40),
+                            axis=0, n=20), axis=0, n=10)
+        assert expected.shape == (10, 21)
+        assert_allclose(result, expected, atol=1e-6)
+
+    def test_irfftn(self):
+        x = random((30, 20, 10))
+        assert_allclose(x, np.fft.irfftn(np.fft.rfftn(x)), atol=1e-6)
+        assert_allclose(x, np.fft.irfftn(np.fft.rfftn(x, norm="backward"),
+                        norm="backward"), atol=1e-6)
+        assert_allclose(x, np.fft.irfftn(np.fft.rfftn(x, norm="ortho"),
+                        norm="ortho"), atol=1e-6)
+        assert_allclose(x, np.fft.irfftn(np.fft.rfftn(x, norm="forward"),
+                        norm="forward"), atol=1e-6)
+
+    def test_hfft(self):
+        x = random(14) + 1j * random(14)
+        x_herm = np.concatenate((random(1), x, random(1)))
+        x = np.concatenate((x_herm, x[::-1].conj()))
+        assert_allclose(np.fft.fft(x), np.fft.hfft(x_herm), atol=1e-6)
+        assert_allclose(np.fft.hfft(x_herm),
+                        np.fft.hfft(x_herm, norm="backward"), atol=1e-6)
+        assert_allclose(np.fft.hfft(x_herm) / np.sqrt(30),
+                        np.fft.hfft(x_herm, norm="ortho"), atol=1e-6)
+        assert_allclose(np.fft.hfft(x_herm) / 30.,
+                        np.fft.hfft(x_herm, norm="forward"), atol=1e-6)
+
+    def test_ihfft(self):
+        x = random(14) + 1j * random(14)
+        x_herm = np.concatenate((random(1), x, random(1)))
+        x = np.concatenate((x_herm, x[::-1].conj()))
+        assert_allclose(x_herm, np.fft.ihfft(np.fft.hfft(x_herm)), atol=1e-6)
+        assert_allclose(x_herm, np.fft.ihfft(np.fft.hfft(x_herm,
+                        norm="backward"), norm="backward"), atol=1e-6)
+        assert_allclose(x_herm, np.fft.ihfft(np.fft.hfft(x_herm,
+                        norm="ortho"), norm="ortho"), atol=1e-6)
+        assert_allclose(x_herm, np.fft.ihfft(np.fft.hfft(x_herm,
+                        norm="forward"), norm="forward"), atol=1e-6)
+
+    @pytest.mark.parametrize("op", [np.fft.fftn, np.fft.ifftn,
+                                    np.fft.rfftn, np.fft.irfftn])
+    def test_axes(self, op):
+        x = random((30, 20, 10))
+        axes = [(0, 1, 2), (0, 2, 1), (1, 0, 2), (1, 2, 0), (2, 0, 1), (2, 1, 0)]
+        for a in axes:
+            op_tr = op(np.transpose(x, a))
+            tr_op = np.transpose(op(x, axes=a), a)
+            assert_allclose(op_tr, tr_op, atol=1e-6)
+
+    @pytest.mark.parametrize("op", [np.fft.fftn, np.fft.ifftn,
+                                    np.fft.fft2, np.fft.ifft2])
+    def test_s_negative_1(self, op):
+        x = np.arange(100).reshape(10, 10)
+        # should use the whole input array along the first axis
+        assert op(x, s=(-1, 5), axes=(0, 1)).shape == (10, 5)
+
+    @pytest.mark.parametrize("op", [np.fft.fftn, np.fft.ifftn,
+                                    np.fft.rfftn, np.fft.irfftn])
+    def test_s_axes_none(self, op):
+        x = np.arange(100).reshape(10, 10)
+        with pytest.warns(match='`axes` should not be `None` if `s`'):
+            op(x, s=(-1, 5))
+
+    @pytest.mark.parametrize("op", [np.fft.fft2, np.fft.ifft2])
+    def test_s_axes_none_2D(self, op):
+        x = np.arange(100).reshape(10, 10)
+        with pytest.warns(match='`axes` should not be `None` if `s`'):
+            op(x, s=(-1, 5), axes=None)
+
+    @pytest.mark.parametrize("op", [np.fft.fftn, np.fft.ifftn,
+                                    np.fft.rfftn, np.fft.irfftn,
+                                    np.fft.fft2, np.fft.ifft2])
+    def test_s_contains_none(self, op):
+        x = random((30, 20, 10))
+        with pytest.warns(match='array containing `None` values to `s`'):
+            op(x, s=(10, None, 10), axes=(0, 1, 2))
+
+    def test_all_1d_norm_preserving(self):
+        # verify that round-trip transforms are norm-preserving
+        x = random(30)
+        x_norm = np.linalg.norm(x)
+        n = x.size * 2
+        func_pairs = [(np.fft.fft, np.fft.ifft),
+                      (np.fft.rfft, np.fft.irfft),
+                      # hfft: order so the first function takes x.size samples
+                      #       (necessary for comparison to x_norm above)
+                      (np.fft.ihfft, np.fft.hfft),
+                      ]
+        for forw, back in func_pairs:
+            for n in [x.size, 2 * x.size]:
+                for norm in [None, 'backward', 'ortho', 'forward']:
+                    tmp = forw(x, n=n, norm=norm)
+                    tmp = back(tmp, n=n, norm=norm)
+                    assert_allclose(x_norm,
+                                    np.linalg.norm(tmp), atol=1e-6)
+
+    @pytest.mark.parametrize("axes", [(0, 1), (0, 2), None])
+    @pytest.mark.parametrize("dtype", (complex, float))
+    @pytest.mark.parametrize("transpose", (True, False))
+    def test_fftn_out_argument(self, dtype, transpose, axes):
+        def zeros_like(x):
+            if transpose:
+                return np.zeros_like(x.T).T
+            else:
+                return np.zeros_like(x)
+
+        # tests below only test the out parameter
+        if dtype is complex:
+            x = random((10, 5, 6)) + 1j * random((10, 5, 6))
+            fft, ifft = np.fft.fftn, np.fft.ifftn
+        else:
+            x = random((10, 5, 6))
+            fft, ifft = np.fft.rfftn, np.fft.irfftn
+
+        expected = fft(x, axes=axes)
+        out = zeros_like(expected)
+        result = fft(x, out=out, axes=axes)
+        assert result is out
+        assert_array_equal(result, expected)
+
+        expected2 = ifft(expected, axes=axes)
+        out2 = out if dtype is complex else zeros_like(expected2)
+        result2 = ifft(out, out=out2, axes=axes)
+        assert result2 is out2
+        assert_array_equal(result2, expected2)
+
+    @pytest.mark.parametrize("fft", [np.fft.fftn, np.fft.ifftn, np.fft.rfftn])
+    def test_fftn_out_and_s_interaction(self, fft):
+        # With s, shape varies, so generally one cannot pass in out.
+        if fft is np.fft.rfftn:
+            x = random((10, 5, 6))
+        else:
+            x = random((10, 5, 6)) + 1j * random((10, 5, 6))
+        with pytest.raises(ValueError, match="has wrong shape"):
+            fft(x, out=np.zeros_like(x), s=(3, 3, 3), axes=(0, 1, 2))
+        # Except on the first axis done (which is the last of axes).
+        s = (10, 5, 5)
+        expected = fft(x, s=s, axes=(0, 1, 2))
+        out = np.zeros_like(expected)
+        result = fft(x, s=s, axes=(0, 1, 2), out=out)
+        assert result is out
+        assert_array_equal(result, expected)
+
+    @pytest.mark.parametrize("s", [(9, 5, 5), (3, 3, 3)])
+    def test_irfftn_out_and_s_interaction(self, s):
+        # Since for irfftn, the output is real and thus cannot be used for
+        # intermediate steps, it should always work.
+        x = random((9, 5, 6, 2)) + 1j * random((9, 5, 6, 2))
+        expected = np.fft.irfftn(x, s=s, axes=(0, 1, 2))
+        out = np.zeros_like(expected)
+        result = np.fft.irfftn(x, s=s, axes=(0, 1, 2), out=out)
+        assert result is out
+        assert_array_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+        "dtype",
+        [np.float32, np.float64, np.complex64, np.complex128])
+@pytest.mark.parametrize("order", ["F", 'non-contiguous'])
+@pytest.mark.parametrize(
+        "fft",
+        [np.fft.fft, np.fft.fft2, np.fft.fftn,
+         np.fft.ifft, np.fft.ifft2, np.fft.ifftn])
+def test_fft_with_order(dtype, order, fft):
+    # Check that FFT/IFFT produces identical results for C, Fortran and
+    # non contiguous arrays
+    rng = np.random.RandomState(42)
+    X = rng.rand(8, 7, 13).astype(dtype, copy=False)
+    # See discussion in pull/14178
+    _tol = 8.0 * np.sqrt(np.log2(X.size)) * np.finfo(X.dtype).eps
+    if order == 'F':
+        Y = np.asfortranarray(X)
+    else:
+        # Make a non contiguous array
+        Y = X[::-1]
+        X = np.ascontiguousarray(X[::-1])
+
+    if fft.__name__.endswith('fft'):
+        for axis in range(3):
+            X_res = fft(X, axis=axis)
+            Y_res = fft(Y, axis=axis)
+            assert_allclose(X_res, Y_res, atol=_tol, rtol=_tol)
+    elif fft.__name__.endswith(('fft2', 'fftn')):
+        axes = [(0, 1), (1, 2), (0, 2)]
+        if fft.__name__.endswith('fftn'):
+            axes.extend([(0,), (1,), (2,), None])
+        for ax in axes:
+            X_res = fft(X, axes=ax)
+            Y_res = fft(Y, axes=ax)
+            assert_allclose(X_res, Y_res, atol=_tol, rtol=_tol)
+    else:
+        raise ValueError
+
+
+@pytest.mark.parametrize("order", ["F", "C"])
+@pytest.mark.parametrize("n", [None, 7, 12])
+def test_fft_output_order(order, n):
+    rng = np.random.RandomState(42)
+    x = rng.rand(10)
+    x = np.asarray(x, dtype=np.complex64, order=order)
+    res = np.fft.fft(x, n=n)
+    assert res.flags.c_contiguous == x.flags.c_contiguous
+    assert res.flags.f_contiguous == x.flags.f_contiguous
+
+@pytest.mark.skipif(IS_WASM, reason="Cannot start thread")
+class TestFFTThreadSafe:
+    threads = 16
+    input_shape = (800, 200)
+
+    def _test_mtsame(self, func, *args):
+        def worker(args, q):
+            q.put(func(*args))
+
+        q = queue.Queue()
+        expected = func(*args)
+
+        # Spin off a bunch of threads to call the same function simultaneously
+        t = [threading.Thread(target=worker, args=(args, q))
+             for i in range(self.threads)]
+        [x.start() for x in t]
+
+        [x.join() for x in t]
+        # Make sure all threads returned the correct value
+        for i in range(self.threads):
+            assert_array_equal(q.get(timeout=5), expected,
+                'Function returned wrong value in multithreaded context')
+
+    def test_fft(self):
+        a = np.ones(self.input_shape) * 1 + 0j
+        self._test_mtsame(np.fft.fft, a)
+
+    def test_ifft(self):
+        a = np.ones(self.input_shape) * 1 + 0j
+        self._test_mtsame(np.fft.ifft, a)
+
+    def test_rfft(self):
+        a = np.ones(self.input_shape)
+        self._test_mtsame(np.fft.rfft, a)
+
+    def test_irfft(self):
+        a = np.ones(self.input_shape) * 1 + 0j
+        self._test_mtsame(np.fft.irfft, a)
+
+
+def test_irfft_with_n_1_regression():
+    # Regression test for gh-25661
+    x = np.arange(10)
+    np.fft.irfft(x, n=1)
+    np.fft.hfft(x, n=1)
+    np.fft.irfft(np.array([0], complex), n=10)
+
+
+def test_irfft_with_n_large_regression():
+    # Regression test for gh-25679
+    x = np.arange(5) * (1 + 1j)
+    result = np.fft.hfft(x, n=10)
+    expected = np.array([20., 9.91628173, -11.8819096, 7.1048486,
+                         -6.62459848, 4., -3.37540152, -0.16057669,
+                         1.8819096, -20.86055364])
+    assert_allclose(result, expected)
+
+
+@pytest.mark.parametrize("fft", [
+    np.fft.fft, np.fft.ifft, np.fft.rfft, np.fft.irfft
+])
+@pytest.mark.parametrize("data", [
+    np.array([False, True, False]),
+    np.arange(10, dtype=np.uint8),
+    np.arange(5, dtype=np.int16),
+])
+def test_fft_with_integer_or_bool_input(data, fft):
+    # Regression test for gh-25819
+    result = fft(data)
+    float_data = data.astype(np.result_type(data, 1.))
+    expected = fft(float_data)
+    assert_array_equal(result, expected)
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--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test__datasource.py
@@ -0,0 +1,328 @@
+import os
+import urllib.request as urllib_request
+from shutil import rmtree
+from tempfile import NamedTemporaryFile, mkdtemp, mkstemp
+from urllib.error import URLError
+from urllib.parse import urlparse
+
+import pytest
+
+import numpy.lib._datasource as datasource
+from numpy.testing import assert_, assert_equal, assert_raises
+
+
+def urlopen_stub(url, data=None):
+    '''Stub to replace urlopen for testing.'''
+    if url == valid_httpurl():
+        tmpfile = NamedTemporaryFile(prefix='urltmp_')
+        return tmpfile
+    else:
+        raise URLError('Name or service not known')
+
+
+# setup and teardown
+old_urlopen = None
+
+
+def setup_module():
+    global old_urlopen
+
+    old_urlopen = urllib_request.urlopen
+    urllib_request.urlopen = urlopen_stub
+
+
+def teardown_module():
+    urllib_request.urlopen = old_urlopen
+
+
+# A valid website for more robust testing
+http_path = 'http://www.google.com/'
+http_file = 'index.html'
+
+http_fakepath = 'http://fake.abc.web/site/'
+http_fakefile = 'fake.txt'
+
+malicious_files = ['/etc/shadow', '../../shadow',
+                   '..\\system.dat', 'c:\\windows\\system.dat']
+
+magic_line = b'three is the magic number'
+
+
+# Utility functions used by many tests
+def valid_textfile(filedir):
+    # Generate and return a valid temporary file.
+    fd, path = mkstemp(suffix='.txt', prefix='dstmp_', dir=filedir, text=True)
+    os.close(fd)
+    return path
+
+
+def invalid_textfile(filedir):
+    # Generate and return an invalid filename.
+    fd, path = mkstemp(suffix='.txt', prefix='dstmp_', dir=filedir)
+    os.close(fd)
+    os.remove(path)
+    return path
+
+
+def valid_httpurl():
+    return http_path + http_file
+
+
+def invalid_httpurl():
+    return http_fakepath + http_fakefile
+
+
+def valid_baseurl():
+    return http_path
+
+
+def invalid_baseurl():
+    return http_fakepath
+
+
+def valid_httpfile():
+    return http_file
+
+
+def invalid_httpfile():
+    return http_fakefile
+
+
+class TestDataSourceOpen:
+    def test_ValidHTTP(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        fh = ds.open(valid_httpurl())
+        assert_(fh)
+        fh.close()
+
+    def test_InvalidHTTP(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        url = invalid_httpurl()
+        assert_raises(OSError, ds.open, url)
+        try:
+            ds.open(url)
+        except OSError as e:
+            # Regression test for bug fixed in r4342.
+            assert_(e.errno is None)
+
+    def test_InvalidHTTPCacheURLError(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        assert_raises(URLError, ds._cache, invalid_httpurl())
+
+    def test_ValidFile(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        local_file = valid_textfile(tmp_path)
+        fh = ds.open(local_file)
+        assert_(fh)
+        fh.close()
+
+    def test_InvalidFile(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        invalid_file = invalid_textfile(tmp_path)
+        assert_raises(OSError, ds.open, invalid_file)
+
+    def test_ValidGzipFile(self, tmp_path):
+        try:
+            import gzip
+        except ImportError:
+            # We don't have the gzip capabilities to test.
+            pytest.skip()
+        # Test datasource's internal file_opener for Gzip files.
+        ds = datasource.DataSource(tmp_path)
+        filepath = os.path.join(tmp_path, 'foobar.txt.gz')
+        fp = gzip.open(filepath, 'w')
+        fp.write(magic_line)
+        fp.close()
+        fp = ds.open(filepath)
+        result = fp.readline()
+        fp.close()
+        assert_equal(magic_line, result)
+
+    def test_ValidBz2File(self, tmp_path):
+        try:
+            import bz2
+        except ImportError:
+            # We don't have the bz2 capabilities to test.
+            pytest.skip()
+        # Test datasource's internal file_opener for BZip2 files.
+        ds = datasource.DataSource(tmp_path)
+        filepath = os.path.join(tmp_path, 'foobar.txt.bz2')
+        fp = bz2.BZ2File(filepath, 'w')
+        fp.write(magic_line)
+        fp.close()
+        fp = ds.open(filepath)
+        result = fp.readline()
+        fp.close()
+        assert_equal(magic_line, result)
+
+
+class TestDataSourceExists:
+    def test_ValidHTTP(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        assert_(ds.exists(valid_httpurl()))
+
+    def test_InvalidHTTP(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        assert_equal(ds.exists(invalid_httpurl()), False)
+
+    def test_ValidFile(self, tmp_path):
+        # Test valid file in destpath
+        ds = datasource.DataSource(tmp_path)
+        tmpfile = valid_textfile(tmp_path)
+        assert_(ds.exists(tmpfile))
+        # Test valid local file not in destpath
+        localdir = mkdtemp()
+        tmpfile = valid_textfile(localdir)
+        assert_(ds.exists(tmpfile))
+        rmtree(localdir)
+
+    def test_InvalidFile(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        tmpfile = invalid_textfile(tmp_path)
+        assert_equal(ds.exists(tmpfile), False)
+
+
+class TestDataSourceAbspath:
+    def test_ValidHTTP(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        _, netloc, upath, _, _, _ = urlparse(valid_httpurl())
+        local_path = os.path.join(tmp_path, netloc,
+                                  upath.strip(os.sep).strip('/'))
+        assert_equal(local_path, ds.abspath(valid_httpurl()))
+
+    def test_ValidFile(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        tmpfile = valid_textfile(tmp_path)
+        tmpfilename = os.path.split(tmpfile)[-1]
+        # Test with filename only
+        assert_equal(tmpfile, ds.abspath(tmpfilename))
+        # Test filename with complete path
+        assert_equal(tmpfile, ds.abspath(tmpfile))
+
+    def test_InvalidHTTP(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        _, netloc, upath, _, _, _ = urlparse(invalid_httpurl())
+        invalidhttp = os.path.join(tmp_path, netloc,
+                                   upath.strip(os.sep).strip('/'))
+        assert_(invalidhttp != ds.abspath(valid_httpurl()))
+
+    def test_InvalidFile(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        invalidfile = valid_textfile(tmp_path)
+        tmpfile = valid_textfile(tmp_path)
+        tmpfilename = os.path.split(tmpfile)[-1]
+        # Test with filename only
+        assert_(invalidfile != ds.abspath(tmpfilename))
+        # Test filename with complete path
+        assert_(invalidfile != ds.abspath(tmpfile))
+
+    def test_sandboxing(self, tmp_path):
+        ds = datasource.DataSource(tmp_path)
+        tmpfile = valid_textfile(tmp_path)
+        tmpfilename = os.path.split(tmpfile)[-1]
+
+        path = lambda x: os.path.abspath(ds.abspath(x))
+
+        assert_(path(valid_httpurl()).startswith(str(tmp_path)))
+        assert_(path(invalid_httpurl()).startswith(str(tmp_path)))
+        assert_(path(tmpfile).startswith(str(tmp_path)))
+        assert_(path(tmpfilename).startswith(str(tmp_path)))
+        for fn in malicious_files:
+            assert_(path(http_path + fn).startswith(str(tmp_path)))
+            assert_(path(fn).startswith(str(tmp_path)))
+
+    def test_windows_os_sep(self, tmp_path):
+        orig_os_sep = os.sep
+        try:
+            os.sep = '\\'
+            self.test_ValidHTTP(tmp_path)
+            self.test_ValidFile(tmp_path)
+            self.test_InvalidHTTP(tmp_path)
+            self.test_InvalidFile(tmp_path)
+            self.test_sandboxing(tmp_path)
+        finally:
+            os.sep = orig_os_sep
+
+
+class TestRepositoryAbspath:
+    def test_ValidHTTP(self, tmp_path):
+        repos = datasource.Repository(valid_baseurl(), tmp_path)
+        _, netloc, upath, _, _, _ = urlparse(valid_httpurl())
+        local_path = os.path.join(repos._destpath, netloc,
+                                  upath.strip(os.sep).strip('/'))
+        filepath = repos.abspath(valid_httpfile())
+        assert_equal(local_path, filepath)
+
+    def test_sandboxing(self, tmp_path):
+        repos = datasource.Repository(valid_baseurl(), tmp_path)
+        path = lambda x: os.path.abspath(repos.abspath(x))
+        assert_(path(valid_httpfile()).startswith(str(tmp_path)))
+        for fn in malicious_files:
+            assert_(path(http_path + fn).startswith(str(tmp_path)))
+            assert_(path(fn).startswith(str(tmp_path)))
+
+    def test_windows_os_sep(self, tmp_path):
+        orig_os_sep = os.sep
+        try:
+            os.sep = '\\'
+            self.test_ValidHTTP(tmp_path)
+            self.test_sandboxing(tmp_path)
+        finally:
+            os.sep = orig_os_sep
+
+
+class TestRepositoryExists:
+    def test_ValidFile(self, tmp_path):
+        # Create local temp file
+        repos = datasource.Repository(valid_baseurl(), tmp_path)
+        tmpfile = valid_textfile(tmp_path)
+        assert_(repos.exists(tmpfile))
+
+    def test_InvalidFile(self, tmp_path):
+        repos = datasource.Repository(valid_baseurl(), tmp_path)
+        tmpfile = invalid_textfile(tmp_path)
+        assert_equal(repos.exists(tmpfile), False)
+
+    def test_RemoveHTTPFile(self, tmp_path):
+        repos = datasource.Repository(valid_baseurl(), tmp_path)
+        assert_(repos.exists(valid_httpurl()))
+
+    def test_CachedHTTPFile(self, tmp_path):
+        localfile = valid_httpurl()
+        # Create a locally cached temp file with an URL based
+        # directory structure.  This is similar to what Repository.open
+        # would do.
+        repos = datasource.Repository(valid_baseurl(), tmp_path)
+        _, netloc, _, _, _, _ = urlparse(localfile)
+        local_path = os.path.join(repos._destpath, netloc)
+        os.mkdir(local_path, 0o0700)
+        tmpfile = valid_textfile(local_path)
+        assert_(repos.exists(tmpfile))
+
+
+class TestOpenFunc:
+    def test_DataSourceOpen(self, tmp_path):
+        local_file = valid_textfile(tmp_path)
+        # Test case where destpath is passed in
+        fp = datasource.open(local_file, destpath=tmp_path)
+        assert_(fp)
+        fp.close()
+        # Test case where default destpath is used
+        fp = datasource.open(local_file)
+        assert_(fp)
+        fp.close()
+
+def test_del_attr_handling():
+    # DataSource __del__ can be called
+    # even if __init__ fails when the
+    # Exception object is caught by the
+    # caller as happens in refguide_check
+    # is_deprecated() function
+
+    ds = datasource.DataSource()
+    # simulate failed __init__ by removing key attribute
+    # produced within __init__ and expected by __del__
+    del ds._istmpdest
+    # should not raise an AttributeError if __del__
+    # gracefully handles failed __init__:
+    ds.__del__()
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test__iotools.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test__iotools.py
new file mode 100644
index 0000000000000000000000000000000000000000..9ab0780d6e8b4feb7d3262c776d506b362b5f18e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test__iotools.py
@@ -0,0 +1,358 @@
+import time
+from datetime import date
+
+import pytest
+
+import numpy as np
+from numpy.lib._iotools import (
+    LineSplitter,
+    NameValidator,
+    StringConverter,
+    easy_dtype,
+    flatten_dtype,
+    has_nested_fields,
+)
+from numpy.testing import assert_, assert_allclose, assert_equal, assert_raises
+
+
+class TestLineSplitter:
+    "Tests the LineSplitter class."
+
+    def test_no_delimiter(self):
+        "Test LineSplitter w/o delimiter"
+        strg = " 1 2 3 4  5 # test"
+        test = LineSplitter()(strg)
+        assert_equal(test, ['1', '2', '3', '4', '5'])
+        test = LineSplitter('')(strg)
+        assert_equal(test, ['1', '2', '3', '4', '5'])
+
+    def test_space_delimiter(self):
+        "Test space delimiter"
+        strg = " 1 2 3 4  5 # test"
+        test = LineSplitter(' ')(strg)
+        assert_equal(test, ['1', '2', '3', '4', '', '5'])
+        test = LineSplitter('  ')(strg)
+        assert_equal(test, ['1 2 3 4', '5'])
+
+    def test_tab_delimiter(self):
+        "Test tab delimiter"
+        strg = " 1\t 2\t 3\t 4\t 5  6"
+        test = LineSplitter('\t')(strg)
+        assert_equal(test, ['1', '2', '3', '4', '5  6'])
+        strg = " 1  2\t 3  4\t 5  6"
+        test = LineSplitter('\t')(strg)
+        assert_equal(test, ['1  2', '3  4', '5  6'])
+
+    def test_other_delimiter(self):
+        "Test LineSplitter on delimiter"
+        strg = "1,2,3,4,,5"
+        test = LineSplitter(',')(strg)
+        assert_equal(test, ['1', '2', '3', '4', '', '5'])
+        #
+        strg = " 1,2,3,4,,5 # test"
+        test = LineSplitter(',')(strg)
+        assert_equal(test, ['1', '2', '3', '4', '', '5'])
+
+        # gh-11028 bytes comment/delimiters should get encoded
+        strg = b" 1,2,3,4,,5 % test"
+        test = LineSplitter(delimiter=b',', comments=b'%')(strg)
+        assert_equal(test, ['1', '2', '3', '4', '', '5'])
+
+    def test_constant_fixed_width(self):
+        "Test LineSplitter w/ fixed-width fields"
+        strg = "  1  2  3  4     5   # test"
+        test = LineSplitter(3)(strg)
+        assert_equal(test, ['1', '2', '3', '4', '', '5', ''])
+        #
+        strg = "  1     3  4  5  6# test"
+        test = LineSplitter(20)(strg)
+        assert_equal(test, ['1     3  4  5  6'])
+        #
+        strg = "  1     3  4  5  6# test"
+        test = LineSplitter(30)(strg)
+        assert_equal(test, ['1     3  4  5  6'])
+
+    def test_variable_fixed_width(self):
+        strg = "  1     3  4  5  6# test"
+        test = LineSplitter((3, 6, 6, 3))(strg)
+        assert_equal(test, ['1', '3', '4  5', '6'])
+        #
+        strg = "  1     3  4  5  6# test"
+        test = LineSplitter((6, 6, 9))(strg)
+        assert_equal(test, ['1', '3  4', '5  6'])
+
+# -----------------------------------------------------------------------------
+
+
+class TestNameValidator:
+
+    def test_case_sensitivity(self):
+        "Test case sensitivity"
+        names = ['A', 'a', 'b', 'c']
+        test = NameValidator().validate(names)
+        assert_equal(test, ['A', 'a', 'b', 'c'])
+        test = NameValidator(case_sensitive=False).validate(names)
+        assert_equal(test, ['A', 'A_1', 'B', 'C'])
+        test = NameValidator(case_sensitive='upper').validate(names)
+        assert_equal(test, ['A', 'A_1', 'B', 'C'])
+        test = NameValidator(case_sensitive='lower').validate(names)
+        assert_equal(test, ['a', 'a_1', 'b', 'c'])
+
+        # check exceptions
+        assert_raises(ValueError, NameValidator, case_sensitive='foobar')
+
+    def test_excludelist(self):
+        "Test excludelist"
+        names = ['dates', 'data', 'Other Data', 'mask']
+        validator = NameValidator(excludelist=['dates', 'data', 'mask'])
+        test = validator.validate(names)
+        assert_equal(test, ['dates_', 'data_', 'Other_Data', 'mask_'])
+
+    def test_missing_names(self):
+        "Test validate missing names"
+        namelist = ('a', 'b', 'c')
+        validator = NameValidator()
+        assert_equal(validator(namelist), ['a', 'b', 'c'])
+        namelist = ('', 'b', 'c')
+        assert_equal(validator(namelist), ['f0', 'b', 'c'])
+        namelist = ('a', 'b', '')
+        assert_equal(validator(namelist), ['a', 'b', 'f0'])
+        namelist = ('', 'f0', '')
+        assert_equal(validator(namelist), ['f1', 'f0', 'f2'])
+
+    def test_validate_nb_names(self):
+        "Test validate nb names"
+        namelist = ('a', 'b', 'c')
+        validator = NameValidator()
+        assert_equal(validator(namelist, nbfields=1), ('a',))
+        assert_equal(validator(namelist, nbfields=5, defaultfmt="g%i"),
+                     ['a', 'b', 'c', 'g0', 'g1'])
+
+    def test_validate_wo_names(self):
+        "Test validate no names"
+        namelist = None
+        validator = NameValidator()
+        assert_(validator(namelist) is None)
+        assert_equal(validator(namelist, nbfields=3), ['f0', 'f1', 'f2'])
+
+# -----------------------------------------------------------------------------
+
+
+def _bytes_to_date(s):
+    return date(*time.strptime(s, "%Y-%m-%d")[:3])
+
+
+class TestStringConverter:
+    "Test StringConverter"
+
+    def test_creation(self):
+        "Test creation of a StringConverter"
+        converter = StringConverter(int, -99999)
+        assert_equal(converter._status, 1)
+        assert_equal(converter.default, -99999)
+
+    def test_upgrade(self):
+        "Tests the upgrade method."
+
+        converter = StringConverter()
+        assert_equal(converter._status, 0)
+
+        # test int
+        assert_equal(converter.upgrade('0'), 0)
+        assert_equal(converter._status, 1)
+
+        # On systems where long defaults to 32-bit, the statuses will be
+        # offset by one, so we check for this here.
+        import numpy._core.numeric as nx
+        status_offset = int(nx.dtype(nx.int_).itemsize < nx.dtype(nx.int64).itemsize)
+
+        # test int > 2**32
+        assert_equal(converter.upgrade('17179869184'), 17179869184)
+        assert_equal(converter._status, 1 + status_offset)
+
+        # test float
+        assert_allclose(converter.upgrade('0.'), 0.0)
+        assert_equal(converter._status, 2 + status_offset)
+
+        # test complex
+        assert_equal(converter.upgrade('0j'), complex('0j'))
+        assert_equal(converter._status, 3 + status_offset)
+
+        # test str
+        # note that the longdouble type has been skipped, so the
+        # _status increases by 2. Everything should succeed with
+        # unicode conversion (8).
+        for s in ['a', b'a']:
+            res = converter.upgrade(s)
+            assert_(type(res) is str)
+            assert_equal(res, 'a')
+            assert_equal(converter._status, 8 + status_offset)
+
+    def test_missing(self):
+        "Tests the use of missing values."
+        converter = StringConverter(missing_values=('missing',
+                                                    'missed'))
+        converter.upgrade('0')
+        assert_equal(converter('0'), 0)
+        assert_equal(converter(''), converter.default)
+        assert_equal(converter('missing'), converter.default)
+        assert_equal(converter('missed'), converter.default)
+        try:
+            converter('miss')
+        except ValueError:
+            pass
+
+    @pytest.mark.thread_unsafe(reason="monkeypatches StringConverter")
+    def test_upgrademapper(self):
+        "Tests updatemapper"
+        dateparser = _bytes_to_date
+        _original_mapper = StringConverter._mapper[:]
+        try:
+            StringConverter.upgrade_mapper(dateparser, date(2000, 1, 1))
+            convert = StringConverter(dateparser, date(2000, 1, 1))
+            test = convert('2001-01-01')
+            assert_equal(test, date(2001, 1, 1))
+            test = convert('2009-01-01')
+            assert_equal(test, date(2009, 1, 1))
+            test = convert('')
+            assert_equal(test, date(2000, 1, 1))
+        finally:
+            StringConverter._mapper = _original_mapper
+
+    def test_string_to_object(self):
+        "Make sure that string-to-object functions are properly recognized"
+        old_mapper = StringConverter._mapper[:]  # copy of list
+        conv = StringConverter(_bytes_to_date)
+        assert_equal(conv._mapper, old_mapper)
+        assert_(hasattr(conv, 'default'))
+
+    def test_keep_default(self):
+        "Make sure we don't lose an explicit default"
+        converter = StringConverter(None, missing_values='',
+                                    default=-999)
+        converter.upgrade('3.14159265')
+        assert_equal(converter.default, -999)
+        assert_equal(converter.type, np.dtype(float))
+        #
+        converter = StringConverter(
+            None, missing_values='', default=0)
+        converter.upgrade('3.14159265')
+        assert_equal(converter.default, 0)
+        assert_equal(converter.type, np.dtype(float))
+
+    def test_keep_default_zero(self):
+        "Check that we don't lose a default of 0"
+        converter = StringConverter(int, default=0,
+                                    missing_values="N/A")
+        assert_equal(converter.default, 0)
+
+    def test_keep_missing_values(self):
+        "Check that we're not losing missing values"
+        converter = StringConverter(int, default=0,
+                                    missing_values="N/A")
+        assert_equal(
+            converter.missing_values, {'', 'N/A'})
+
+    def test_int64_dtype(self):
+        "Check that int64 integer types can be specified"
+        converter = StringConverter(np.int64, default=0)
+        val = "-9223372036854775807"
+        assert_(converter(val) == -9223372036854775807)
+        val = "9223372036854775807"
+        assert_(converter(val) == 9223372036854775807)
+
+    def test_uint64_dtype(self):
+        "Check that uint64 integer types can be specified"
+        converter = StringConverter(np.uint64, default=0)
+        val = "9223372043271415339"
+        assert_(converter(val) == 9223372043271415339)
+
+
+class TestMiscFunctions:
+
+    def test_has_nested_dtype(self):
+        "Test has_nested_dtype"
+        ndtype = np.dtype(float)
+        assert_equal(has_nested_fields(ndtype), False)
+        ndtype = np.dtype([('A', '|S3'), ('B', float)])
+        assert_equal(has_nested_fields(ndtype), False)
+        ndtype = np.dtype([('A', int), ('B', [('BA', float), ('BB', '|S1')])])
+        assert_equal(has_nested_fields(ndtype), True)
+
+    def test_easy_dtype(self):
+        "Test ndtype on dtypes"
+        # Simple case
+        ndtype = float
+        assert_equal(easy_dtype(ndtype), np.dtype(float))
+        # As string w/o names
+        ndtype = "i4, f8"
+        assert_equal(easy_dtype(ndtype),
+                     np.dtype([('f0', "i4"), ('f1', "f8")]))
+        # As string w/o names but different default format
+        assert_equal(easy_dtype(ndtype, defaultfmt="field_%03i"),
+                     np.dtype([('field_000', "i4"), ('field_001', "f8")]))
+        # As string w/ names
+        ndtype = "i4, f8"
+        assert_equal(easy_dtype(ndtype, names="a, b"),
+                     np.dtype([('a', "i4"), ('b', "f8")]))
+        # As string w/ names (too many)
+        ndtype = "i4, f8"
+        assert_equal(easy_dtype(ndtype, names="a, b, c"),
+                     np.dtype([('a', "i4"), ('b', "f8")]))
+        # As string w/ names (not enough)
+        ndtype = "i4, f8"
+        assert_equal(easy_dtype(ndtype, names=", b"),
+                     np.dtype([('f0', "i4"), ('b', "f8")]))
+        # ... (with different default format)
+        assert_equal(easy_dtype(ndtype, names="a", defaultfmt="f%02i"),
+                     np.dtype([('a', "i4"), ('f00', "f8")]))
+        # As list of tuples w/o names
+        ndtype = [('A', int), ('B', float)]
+        assert_equal(easy_dtype(ndtype), np.dtype([('A', int), ('B', float)]))
+        # As list of tuples w/ names
+        assert_equal(easy_dtype(ndtype, names="a,b"),
+                     np.dtype([('a', int), ('b', float)]))
+        # As list of tuples w/ not enough names
+        assert_equal(easy_dtype(ndtype, names="a"),
+                     np.dtype([('a', int), ('f0', float)]))
+        # As list of tuples w/ too many names
+        assert_equal(easy_dtype(ndtype, names="a,b,c"),
+                     np.dtype([('a', int), ('b', float)]))
+        # As list of types w/o names
+        ndtype = (int, float, float)
+        assert_equal(easy_dtype(ndtype),
+                     np.dtype([('f0', int), ('f1', float), ('f2', float)]))
+        # As list of types w names
+        ndtype = (int, float, float)
+        assert_equal(easy_dtype(ndtype, names="a, b, c"),
+                     np.dtype([('a', int), ('b', float), ('c', float)]))
+        # As simple dtype w/ names
+        ndtype = np.dtype(float)
+        assert_equal(easy_dtype(ndtype, names="a, b, c"),
+                     np.dtype([(_, float) for _ in ('a', 'b', 'c')]))
+        # As simple dtype w/o names (but multiple fields)
+        ndtype = np.dtype(float)
+        assert_equal(
+            easy_dtype(ndtype, names=['', '', ''], defaultfmt="f%02i"),
+            np.dtype([(_, float) for _ in ('f00', 'f01', 'f02')]))
+
+    def test_flatten_dtype(self):
+        "Testing flatten_dtype"
+        # Standard dtype
+        dt = np.dtype([("a", "f8"), ("b", "f8")])
+        dt_flat = flatten_dtype(dt)
+        assert_equal(dt_flat, [float, float])
+        # Recursive dtype
+        dt = np.dtype([("a", [("aa", '|S1'), ("ab", '|S2')]), ("b", int)])
+        dt_flat = flatten_dtype(dt)
+        assert_equal(dt_flat, [np.dtype('|S1'), np.dtype('|S2'), int])
+        # dtype with shaped fields
+        dt = np.dtype([("a", (float, 2)), ("b", (int, 3))])
+        dt_flat = flatten_dtype(dt)
+        assert_equal(dt_flat, [float, int])
+        dt_flat = flatten_dtype(dt, True)
+        assert_equal(dt_flat, [float] * 2 + [int] * 3)
+        # dtype w/ titles
+        dt = np.dtype([(("a", "A"), "f8"), (("b", "B"), "f8")])
+        dt_flat = flatten_dtype(dt)
+        assert_equal(dt_flat, [float, float])
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test__version.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test__version.py
new file mode 100644
index 0000000000000000000000000000000000000000..42f0b8abec98e95853a9c06b12fe3ea767b6ff79
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test__version.py
@@ -0,0 +1,64 @@
+"""Tests for the NumpyVersion class.
+
+"""
+from numpy.lib import NumpyVersion
+from numpy.testing import assert_, assert_raises
+
+
+def test_main_versions():
+    assert_(NumpyVersion('1.8.0') == '1.8.0')
+    for ver in ['1.9.0', '2.0.0', '1.8.1', '10.0.1']:
+        assert_(NumpyVersion('1.8.0') < ver)
+
+    for ver in ['1.7.0', '1.7.1', '0.9.9']:
+        assert_(NumpyVersion('1.8.0') > ver)
+
+
+def test_version_1_point_10():
+    # regression test for gh-2998.
+    assert_(NumpyVersion('1.9.0') < '1.10.0')
+    assert_(NumpyVersion('1.11.0') < '1.11.1')
+    assert_(NumpyVersion('1.11.0') == '1.11.0')
+    assert_(NumpyVersion('1.99.11') < '1.99.12')
+
+
+def test_alpha_beta_rc():
+    assert_(NumpyVersion('1.8.0rc1') == '1.8.0rc1')
+    for ver in ['1.8.0', '1.8.0rc2']:
+        assert_(NumpyVersion('1.8.0rc1') < ver)
+
+    for ver in ['1.8.0a2', '1.8.0b3', '1.7.2rc4']:
+        assert_(NumpyVersion('1.8.0rc1') > ver)
+
+    assert_(NumpyVersion('1.8.0b1') > '1.8.0a2')
+
+
+def test_dev_version():
+    assert_(NumpyVersion('1.9.0.dev-Unknown') < '1.9.0')
+    for ver in ['1.9.0', '1.9.0a1', '1.9.0b2', '1.9.0b2.dev-ffffffff']:
+        assert_(NumpyVersion('1.9.0.dev-f16acvda') < ver)
+
+    assert_(NumpyVersion('1.9.0.dev-f16acvda') == '1.9.0.dev-11111111')
+
+
+def test_dev_a_b_rc_mixed():
+    assert_(NumpyVersion('1.9.0a2.dev-f16acvda') == '1.9.0a2.dev-11111111')
+    assert_(NumpyVersion('1.9.0a2.dev-6acvda54') < '1.9.0a2')
+
+
+def test_dev0_version():
+    assert_(NumpyVersion('1.9.0.dev0+Unknown') < '1.9.0')
+    for ver in ['1.9.0', '1.9.0a1', '1.9.0b2', '1.9.0b2.dev0+ffffffff']:
+        assert_(NumpyVersion('1.9.0.dev0+f16acvda') < ver)
+
+    assert_(NumpyVersion('1.9.0.dev0+f16acvda') == '1.9.0.dev0+11111111')
+
+
+def test_dev0_a_b_rc_mixed():
+    assert_(NumpyVersion('1.9.0a2.dev0+f16acvda') == '1.9.0a2.dev0+11111111')
+    assert_(NumpyVersion('1.9.0a2.dev0+6acvda54') < '1.9.0a2')
+
+
+def test_raises():
+    for ver in ['1.9', '1,9.0', '1.7.x']:
+        assert_raises(ValueError, NumpyVersion, ver)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_array_utils.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_array_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..de48a575f9e62259e22c5710b453bd1a4fc4ab11
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_array_utils.py
@@ -0,0 +1,32 @@
+import numpy as np
+from numpy.lib import array_utils
+from numpy.testing import assert_equal
+
+
+class TestByteBounds:
+    def test_byte_bounds(self):
+        # pointer difference matches size * itemsize
+        # due to contiguity
+        a = np.arange(12).reshape(3, 4)
+        low, high = array_utils.byte_bounds(a)
+        assert_equal(high - low, a.size * a.itemsize)
+
+    def test_unusual_order_positive_stride(self):
+        a = np.arange(12).reshape(3, 4)
+        b = a.T
+        low, high = array_utils.byte_bounds(b)
+        assert_equal(high - low, b.size * b.itemsize)
+
+    def test_unusual_order_negative_stride(self):
+        a = np.arange(12).reshape(3, 4)
+        b = a.T[::-1]
+        low, high = array_utils.byte_bounds(b)
+        assert_equal(high - low, b.size * b.itemsize)
+
+    def test_strided(self):
+        a = np.arange(12)
+        b = a[::2]
+        low, high = array_utils.byte_bounds(b)
+        # the largest pointer address is lost (even numbers only in the
+        # stride), and compensate addresses for striding by 2
+        assert_equal(high - low, b.size * 2 * b.itemsize - b.itemsize)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arraypad.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arraypad.py
new file mode 100644
index 0000000000000000000000000000000000000000..e2fa014e51e9fc38b8b63a2c512ed00227e17535
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arraypad.py
@@ -0,0 +1,1427 @@
+"""Tests for the array padding functions.
+
+"""
+import pytest
+
+import numpy as np
+from numpy.lib._arraypad_impl import _as_pairs
+from numpy.testing import assert_allclose, assert_array_equal, assert_equal
+
+_numeric_dtypes = (
+    np._core.sctypes["uint"]
+    + np._core.sctypes["int"]
+    + np._core.sctypes["float"]
+    + np._core.sctypes["complex"]
+)
+_all_modes = {
+    'constant': {'constant_values': 0},
+    'edge': {},
+    'linear_ramp': {'end_values': 0},
+    'maximum': {'stat_length': None},
+    'mean': {'stat_length': None},
+    'median': {'stat_length': None},
+    'minimum': {'stat_length': None},
+    'reflect': {'reflect_type': 'even'},
+    'symmetric': {'reflect_type': 'even'},
+    'wrap': {},
+    'empty': {}
+}
+
+
+class TestAsPairs:
+    def test_single_value(self):
+        """Test casting for a single value."""
+        expected = np.array([[3, 3]] * 10)
+        for x in (3, [3], [[3]]):
+            result = _as_pairs(x, 10)
+            assert_equal(result, expected)
+        # Test with dtype=object
+        obj = object()
+        assert_equal(
+            _as_pairs(obj, 10),
+            np.array([[obj, obj]] * 10)
+        )
+
+    def test_two_values(self):
+        """Test proper casting for two different values."""
+        # Broadcasting in the first dimension with numbers
+        expected = np.array([[3, 4]] * 10)
+        for x in ([3, 4], [[3, 4]]):
+            result = _as_pairs(x, 10)
+            assert_equal(result, expected)
+        # and with dtype=object
+        obj = object()
+        assert_equal(
+            _as_pairs(["a", obj], 10),
+            np.array([["a", obj]] * 10)
+        )
+
+        # Broadcasting in the second / last dimension with numbers
+        assert_equal(
+            _as_pairs([[3], [4]], 2),
+            np.array([[3, 3], [4, 4]])
+        )
+        # and with dtype=object
+        assert_equal(
+            _as_pairs([["a"], [obj]], 2),
+            np.array([["a", "a"], [obj, obj]])
+        )
+
+    def test_with_none(self):
+        expected = ((None, None), (None, None), (None, None))
+        assert_equal(
+            _as_pairs(None, 3, as_index=False),
+            expected
+        )
+        assert_equal(
+            _as_pairs(None, 3, as_index=True),
+            expected
+        )
+
+    def test_pass_through(self):
+        """Test if `x` already matching desired output are passed through."""
+        expected = np.arange(12).reshape((6, 2))
+        assert_equal(
+            _as_pairs(expected, 6),
+            expected
+        )
+
+    def test_as_index(self):
+        """Test results if `as_index=True`."""
+        assert_equal(
+            _as_pairs([2.6, 3.3], 10, as_index=True),
+            np.array([[3, 3]] * 10, dtype=np.intp)
+        )
+        assert_equal(
+            _as_pairs([2.6, 4.49], 10, as_index=True),
+            np.array([[3, 4]] * 10, dtype=np.intp)
+        )
+        for x in (-3, [-3], [[-3]], [-3, 4], [3, -4], [[-3, 4]], [[4, -3]],
+                  [[1, 2]] * 9 + [[1, -2]]):
+            with pytest.raises(ValueError, match="negative values"):
+                _as_pairs(x, 10, as_index=True)
+
+    def test_exceptions(self):
+        """Ensure faulty usage is discovered."""
+        with pytest.raises(ValueError, match="more dimensions than allowed"):
+            _as_pairs([[[3]]], 10)
+        with pytest.raises(ValueError, match="could not be broadcast"):
+            _as_pairs([[1, 2], [3, 4]], 3)
+        with pytest.raises(ValueError, match="could not be broadcast"):
+            _as_pairs(np.ones((2, 3)), 3)
+
+
+class TestConditionalShortcuts:
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_zero_padding_shortcuts(self, mode):
+        test = np.arange(120).reshape(4, 5, 6)
+        pad_amt = [(0, 0) for _ in test.shape]
+        assert_array_equal(test, np.pad(test, pad_amt, mode=mode))
+
+    @pytest.mark.parametrize("mode", ['maximum', 'mean', 'median', 'minimum',])
+    def test_shallow_statistic_range(self, mode):
+        test = np.arange(120).reshape(4, 5, 6)
+        pad_amt = [(1, 1) for _ in test.shape]
+        assert_array_equal(np.pad(test, pad_amt, mode='edge'),
+                           np.pad(test, pad_amt, mode=mode, stat_length=1))
+
+    @pytest.mark.parametrize("mode", ['maximum', 'mean', 'median', 'minimum',])
+    def test_clip_statistic_range(self, mode):
+        test = np.arange(30).reshape(5, 6)
+        pad_amt = [(3, 3) for _ in test.shape]
+        assert_array_equal(np.pad(test, pad_amt, mode=mode),
+                           np.pad(test, pad_amt, mode=mode, stat_length=30))
+
+
+class TestStatistic:
+    def test_check_mean_stat_length(self):
+        a = np.arange(100).astype('f')
+        a = np.pad(a, ((25, 20), ), 'mean', stat_length=((2, 3), ))
+        b = np.array(
+            [0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5,
+             0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5,
+             0.5, 0.5, 0.5, 0.5, 0.5,
+
+             0., 1., 2., 3., 4., 5., 6., 7., 8., 9.,
+             10., 11., 12., 13., 14., 15., 16., 17., 18., 19.,
+             20., 21., 22., 23., 24., 25., 26., 27., 28., 29.,
+             30., 31., 32., 33., 34., 35., 36., 37., 38., 39.,
+             40., 41., 42., 43., 44., 45., 46., 47., 48., 49.,
+             50., 51., 52., 53., 54., 55., 56., 57., 58., 59.,
+             60., 61., 62., 63., 64., 65., 66., 67., 68., 69.,
+             70., 71., 72., 73., 74., 75., 76., 77., 78., 79.,
+             80., 81., 82., 83., 84., 85., 86., 87., 88., 89.,
+             90., 91., 92., 93., 94., 95., 96., 97., 98., 99.,
+
+             98., 98., 98., 98., 98., 98., 98., 98., 98., 98.,
+             98., 98., 98., 98., 98., 98., 98., 98., 98., 98.
+             ])
+        assert_array_equal(a, b)
+
+    def test_check_maximum_1(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'maximum')
+        b = np.array(
+            [99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
+             99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
+             99, 99, 99, 99, 99,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             99, 99, 99, 99, 99, 99, 99, 99, 99, 99,
+             99, 99, 99, 99, 99, 99, 99, 99, 99, 99]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_maximum_2(self):
+        a = np.arange(100) + 1
+        a = np.pad(a, (25, 20), 'maximum')
+        b = np.array(
+            [100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
+             100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
+             100, 100, 100, 100, 100,
+
+             1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+             11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+             21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+             31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+             41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+             51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+             61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
+             71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
+             81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
+             91, 92, 93, 94, 95, 96, 97, 98, 99, 100,
+
+             100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
+             100, 100, 100, 100, 100, 100, 100, 100, 100, 100]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_maximum_stat_length(self):
+        a = np.arange(100) + 1
+        a = np.pad(a, (25, 20), 'maximum', stat_length=10)
+        b = np.array(
+            [10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+             10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+             10, 10, 10, 10, 10,
+
+              1,  2,  3,  4,  5,  6,  7,  8,  9, 10,
+             11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+             21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+             31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+             41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+             51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+             61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
+             71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
+             81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
+             91, 92, 93, 94, 95, 96, 97, 98, 99, 100,
+
+             100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
+             100, 100, 100, 100, 100, 100, 100, 100, 100, 100]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_minimum_1(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'minimum')
+        b = np.array(
+            [ 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+              0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+              0,  0,  0,  0,  0,
+
+              0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+             0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_minimum_2(self):
+        a = np.arange(100) + 2
+        a = np.pad(a, (25, 20), 'minimum')
+        b = np.array(
+            [ 2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+              2,  2,  2,  2,  2,  2,  2,  2,  2,  2,
+              2,  2,  2,  2,  2,
+
+              2,  3,  4,  5,  6,  7,  8,  9, 10, 11,
+             12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+             22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+             32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
+             42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
+             52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
+             62, 63, 64, 65, 66, 67, 68, 69, 70, 71,
+             72, 73, 74, 75, 76, 77, 78, 79, 80, 81,
+             82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
+             92, 93, 94, 95, 96, 97, 98, 99, 100, 101,
+
+             2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+             2, 2, 2, 2, 2, 2, 2, 2, 2, 2]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_minimum_stat_length(self):
+        a = np.arange(100) + 1
+        a = np.pad(a, (25, 20), 'minimum', stat_length=10)
+        b = np.array(
+            [ 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+              1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+              1,  1,  1,  1,  1,
+
+              1,  2,  3,  4,  5,  6,  7,  8,  9, 10,
+             11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
+             21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+             31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+             41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+             51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
+             61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
+             71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
+             81, 82, 83, 84, 85, 86, 87, 88, 89, 90,
+             91, 92, 93, 94, 95, 96, 97, 98, 99, 100,
+
+             91, 91, 91, 91, 91, 91, 91, 91, 91, 91,
+             91, 91, 91, 91, 91, 91, 91, 91, 91, 91]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_median(self):
+        a = np.arange(100).astype('f')
+        a = np.pad(a, (25, 20), 'median')
+        b = np.array(
+            [49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5,
+             49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5,
+             49.5, 49.5, 49.5, 49.5, 49.5,
+
+             0., 1., 2., 3., 4., 5., 6., 7., 8., 9.,
+             10., 11., 12., 13., 14., 15., 16., 17., 18., 19.,
+             20., 21., 22., 23., 24., 25., 26., 27., 28., 29.,
+             30., 31., 32., 33., 34., 35., 36., 37., 38., 39.,
+             40., 41., 42., 43., 44., 45., 46., 47., 48., 49.,
+             50., 51., 52., 53., 54., 55., 56., 57., 58., 59.,
+             60., 61., 62., 63., 64., 65., 66., 67., 68., 69.,
+             70., 71., 72., 73., 74., 75., 76., 77., 78., 79.,
+             80., 81., 82., 83., 84., 85., 86., 87., 88., 89.,
+             90., 91., 92., 93., 94., 95., 96., 97., 98., 99.,
+
+             49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5,
+             49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_median_01(self):
+        a = np.array([[3, 1, 4], [4, 5, 9], [9, 8, 2]])
+        a = np.pad(a, 1, 'median')
+        b = np.array(
+            [[4, 4, 5, 4, 4],
+
+             [3, 3, 1, 4, 3],
+             [5, 4, 5, 9, 5],
+             [8, 9, 8, 2, 8],
+
+             [4, 4, 5, 4, 4]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_median_02(self):
+        a = np.array([[3, 1, 4], [4, 5, 9], [9, 8, 2]])
+        a = np.pad(a.T, 1, 'median').T
+        b = np.array(
+            [[5, 4, 5, 4, 5],
+
+             [3, 3, 1, 4, 3],
+             [5, 4, 5, 9, 5],
+             [8, 9, 8, 2, 8],
+
+             [5, 4, 5, 4, 5]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_median_stat_length(self):
+        a = np.arange(100).astype('f')
+        a[1] = 2.
+        a[97] = 96.
+        a = np.pad(a, (25, 20), 'median', stat_length=(3, 5))
+        b = np.array(
+            [ 2.,  2.,  2.,  2.,  2.,  2.,  2.,  2.,  2.,  2.,
+              2.,  2.,  2.,  2.,  2.,  2.,  2.,  2.,  2.,  2.,
+              2.,  2.,  2.,  2.,  2.,
+
+              0.,  2.,  2.,  3.,  4.,  5.,  6.,  7.,  8.,  9.,
+             10., 11., 12., 13., 14., 15., 16., 17., 18., 19.,
+             20., 21., 22., 23., 24., 25., 26., 27., 28., 29.,
+             30., 31., 32., 33., 34., 35., 36., 37., 38., 39.,
+             40., 41., 42., 43., 44., 45., 46., 47., 48., 49.,
+             50., 51., 52., 53., 54., 55., 56., 57., 58., 59.,
+             60., 61., 62., 63., 64., 65., 66., 67., 68., 69.,
+             70., 71., 72., 73., 74., 75., 76., 77., 78., 79.,
+             80., 81., 82., 83., 84., 85., 86., 87., 88., 89.,
+             90., 91., 92., 93., 94., 95., 96., 96., 98., 99.,
+
+             96., 96., 96., 96., 96., 96., 96., 96., 96., 96.,
+             96., 96., 96., 96., 96., 96., 96., 96., 96., 96.]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_mean_shape_one(self):
+        a = [[4, 5, 6]]
+        a = np.pad(a, (5, 7), 'mean', stat_length=2)
+        b = np.array(
+            [[4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6],
+             [4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_mean_2(self):
+        a = np.arange(100).astype('f')
+        a = np.pad(a, (25, 20), 'mean')
+        b = np.array(
+            [49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5,
+             49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5,
+             49.5, 49.5, 49.5, 49.5, 49.5,
+
+             0., 1., 2., 3., 4., 5., 6., 7., 8., 9.,
+             10., 11., 12., 13., 14., 15., 16., 17., 18., 19.,
+             20., 21., 22., 23., 24., 25., 26., 27., 28., 29.,
+             30., 31., 32., 33., 34., 35., 36., 37., 38., 39.,
+             40., 41., 42., 43., 44., 45., 46., 47., 48., 49.,
+             50., 51., 52., 53., 54., 55., 56., 57., 58., 59.,
+             60., 61., 62., 63., 64., 65., 66., 67., 68., 69.,
+             70., 71., 72., 73., 74., 75., 76., 77., 78., 79.,
+             80., 81., 82., 83., 84., 85., 86., 87., 88., 89.,
+             90., 91., 92., 93., 94., 95., 96., 97., 98., 99.,
+
+             49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5,
+             49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5, 49.5]
+            )
+        assert_array_equal(a, b)
+
+    @pytest.mark.parametrize("mode", [
+        "mean",
+        "median",
+        "minimum",
+        "maximum"
+    ])
+    def test_same_prepend_append(self, mode):
+        """ Test that appended and prepended values are equal """
+        # This test is constructed to trigger floating point rounding errors in
+        # a way that caused gh-11216 for mode=='mean'
+        a = np.array([-1, 2, -1]) + np.array([0, 1e-12, 0], dtype=np.float64)
+        a = np.pad(a, (1, 1), mode)
+        assert_equal(a[0], a[-1])
+
+    @pytest.mark.parametrize("mode", ["mean", "median", "minimum", "maximum"])
+    @pytest.mark.parametrize(
+        "stat_length", [-2, (-2,), (3, -1), ((5, 2), (-2, 3)), ((-4,), (2,))]
+    )
+    def test_check_negative_stat_length(self, mode, stat_length):
+        arr = np.arange(30).reshape((6, 5))
+        match = "index can't contain negative values"
+        with pytest.raises(ValueError, match=match):
+            np.pad(arr, 2, mode, stat_length=stat_length)
+
+    def test_simple_stat_length(self):
+        a = np.arange(30)
+        a = np.reshape(a, (6, 5))
+        a = np.pad(a, ((2, 3), (3, 2)), mode='mean', stat_length=(3,))
+        b = np.array(
+            [[6, 6, 6, 5, 6, 7, 8, 9, 8, 8],
+             [6, 6, 6, 5, 6, 7, 8, 9, 8, 8],
+
+             [1, 1, 1, 0, 1, 2, 3, 4, 3, 3],
+             [6, 6, 6, 5, 6, 7, 8, 9, 8, 8],
+             [11, 11, 11, 10, 11, 12, 13, 14, 13, 13],
+             [16, 16, 16, 15, 16, 17, 18, 19, 18, 18],
+             [21, 21, 21, 20, 21, 22, 23, 24, 23, 23],
+             [26, 26, 26, 25, 26, 27, 28, 29, 28, 28],
+
+             [21, 21, 21, 20, 21, 22, 23, 24, 23, 23],
+             [21, 21, 21, 20, 21, 22, 23, 24, 23, 23],
+             [21, 21, 21, 20, 21, 22, 23, 24, 23, 23]]
+            )
+        assert_array_equal(a, b)
+
+    @pytest.mark.filterwarnings("ignore:Mean of empty slice:RuntimeWarning")
+    @pytest.mark.filterwarnings(
+        "ignore:invalid value encountered in( scalar)? divide:RuntimeWarning"
+    )
+    @pytest.mark.parametrize("mode", ["mean", "median"])
+    def test_zero_stat_length_valid(self, mode):
+        arr = np.pad([1., 2.], (1, 2), mode, stat_length=0)
+        expected = np.array([np.nan, 1., 2., np.nan, np.nan])
+        assert_equal(arr, expected)
+
+    @pytest.mark.parametrize("mode", ["minimum", "maximum"])
+    def test_zero_stat_length_invalid(self, mode):
+        match = "stat_length of 0 yields no value for padding"
+        with pytest.raises(ValueError, match=match):
+            np.pad([1., 2.], 0, mode, stat_length=0)
+        with pytest.raises(ValueError, match=match):
+            np.pad([1., 2.], 0, mode, stat_length=(1, 0))
+        with pytest.raises(ValueError, match=match):
+            np.pad([1., 2.], 1, mode, stat_length=0)
+        with pytest.raises(ValueError, match=match):
+            np.pad([1., 2.], 1, mode, stat_length=(1, 0))
+
+
+class TestConstant:
+    def test_check_constant(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'constant', constant_values=(10, 20))
+        b = np.array(
+            [10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+             10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
+             10, 10, 10, 10, 10,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             20, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+             20, 20, 20, 20, 20, 20, 20, 20, 20, 20]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_constant_zeros(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'constant')
+        b = np.array(
+            [ 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+              0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+              0,  0,  0,  0,  0,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+              0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+              0,  0,  0,  0,  0,  0,  0,  0,  0,  0]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_constant_float(self):
+        # If input array is int, but constant_values are float, the dtype of
+        # the array to be padded is kept
+        arr = np.arange(30).reshape(5, 6)
+        test = np.pad(arr, (1, 2), mode='constant',
+                   constant_values=1.1)
+        expected = np.array(
+            [[1,  1,  1,  1,  1,  1,  1,  1,  1],
+
+             [1,  0,  1,  2,  3,  4,  5,  1,  1],
+             [1,  6,  7,  8,  9, 10, 11,  1,  1],
+             [1, 12, 13, 14, 15, 16, 17,  1,  1],
+             [1, 18, 19, 20, 21, 22, 23,  1,  1],
+             [1, 24, 25, 26, 27, 28, 29,  1,  1],
+
+             [1,  1,  1,  1,  1,  1,  1,  1,  1],
+             [1,  1,  1,  1,  1,  1,  1,  1,  1]]
+            )
+        assert_allclose(test, expected)
+
+    def test_check_constant_float2(self):
+        # If input array is float, and constant_values are float, the dtype of
+        # the array to be padded is kept - here retaining the float constants
+        arr = np.arange(30).reshape(5, 6)
+        arr_float = arr.astype(np.float64)
+        test = np.pad(arr_float, ((1, 2), (1, 2)), mode='constant',
+                   constant_values=1.1)
+        expected = np.array(
+            [[1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1],
+
+             [1.1,   0. ,   1. ,   2. ,   3. ,   4. ,   5. ,   1.1,   1.1],  # noqa: E203
+             [1.1,   6. ,   7. ,   8. ,   9. ,  10. ,  11. ,   1.1,   1.1],  # noqa: E203
+             [1.1,  12. ,  13. ,  14. ,  15. ,  16. ,  17. ,   1.1,   1.1],  # noqa: E203
+             [1.1,  18. ,  19. ,  20. ,  21. ,  22. ,  23. ,   1.1,   1.1],  # noqa: E203
+             [1.1,  24. ,  25. ,  26. ,  27. ,  28. ,  29. ,   1.1,   1.1],  # noqa: E203
+
+             [1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1],
+             [1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1,   1.1]]
+            )
+        assert_allclose(test, expected)
+
+    def test_check_constant_float3(self):
+        a = np.arange(100, dtype=float)
+        a = np.pad(a, (25, 20), 'constant', constant_values=(-1.1, -1.2))
+        b = np.array(
+            [-1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1,
+             -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1, -1.1,
+             -1.1, -1.1, -1.1, -1.1, -1.1,
+
+             0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2,
+             -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2, -1.2]
+            )
+        assert_allclose(a, b)
+
+    def test_check_constant_odd_pad_amount(self):
+        arr = np.arange(30).reshape(5, 6)
+        test = np.pad(arr, ((1,), (2,)), mode='constant',
+                   constant_values=3)
+        expected = np.array(
+            [[3,  3,  3,  3,  3,  3,  3,  3,  3,  3],
+
+             [3,  3,  0,  1,  2,  3,  4,  5,  3,  3],
+             [3,  3,  6,  7,  8,  9, 10, 11,  3,  3],
+             [3,  3, 12, 13, 14, 15, 16, 17,  3,  3],
+             [3,  3, 18, 19, 20, 21, 22, 23,  3,  3],
+             [3,  3, 24, 25, 26, 27, 28, 29,  3,  3],
+
+             [3,  3,  3,  3,  3,  3,  3,  3,  3,  3]]
+            )
+        assert_allclose(test, expected)
+
+    def test_check_constant_pad_2d(self):
+        arr = np.arange(4).reshape(2, 2)
+        test = np.pad(arr, ((1, 2), (1, 3)), mode='constant',
+                          constant_values=((1, 2), (3, 4)))
+        expected = np.array(
+            [[3, 1, 1, 4, 4, 4],
+             [3, 0, 1, 4, 4, 4],
+             [3, 2, 3, 4, 4, 4],
+             [3, 2, 2, 4, 4, 4],
+             [3, 2, 2, 4, 4, 4]]
+        )
+        assert_allclose(test, expected)
+
+    def test_check_large_integers(self):
+        uint64_max = 2 ** 64 - 1
+        arr = np.full(5, uint64_max, dtype=np.uint64)
+        test = np.pad(arr, 1, mode="constant", constant_values=arr.min())
+        expected = np.full(7, uint64_max, dtype=np.uint64)
+        assert_array_equal(test, expected)
+
+        int64_max = 2 ** 63 - 1
+        arr = np.full(5, int64_max, dtype=np.int64)
+        test = np.pad(arr, 1, mode="constant", constant_values=arr.min())
+        expected = np.full(7, int64_max, dtype=np.int64)
+        assert_array_equal(test, expected)
+
+    def test_check_object_array(self):
+        arr = np.empty(1, dtype=object)
+        obj_a = object()
+        arr[0] = obj_a
+        obj_b = object()
+        obj_c = object()
+        arr = np.pad(arr, pad_width=1, mode='constant',
+                     constant_values=(obj_b, obj_c))
+
+        expected = np.empty((3,), dtype=object)
+        expected[0] = obj_b
+        expected[1] = obj_a
+        expected[2] = obj_c
+
+        assert_array_equal(arr, expected)
+
+    def test_pad_empty_dimension(self):
+        arr = np.zeros((3, 0, 2))
+        result = np.pad(arr, [(0,), (2,), (1,)], mode="constant")
+        assert result.shape == (3, 4, 4)
+
+
+class TestLinearRamp:
+    def test_check_simple(self):
+        a = np.arange(100).astype('f')
+        a = np.pad(a, (25, 20), 'linear_ramp', end_values=(4, 5))
+        b = np.array(
+            [4.00, 3.84, 3.68, 3.52, 3.36, 3.20, 3.04, 2.88, 2.72, 2.56,
+             2.40, 2.24, 2.08, 1.92, 1.76, 1.60, 1.44, 1.28, 1.12, 0.96,
+             0.80, 0.64, 0.48, 0.32, 0.16,
+
+             0.00, 1.00, 2.00, 3.00, 4.00, 5.00, 6.00, 7.00, 8.00, 9.00,
+             10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0,
+             20.0, 21.0, 22.0, 23.0, 24.0, 25.0, 26.0, 27.0, 28.0, 29.0,
+             30.0, 31.0, 32.0, 33.0, 34.0, 35.0, 36.0, 37.0, 38.0, 39.0,
+             40.0, 41.0, 42.0, 43.0, 44.0, 45.0, 46.0, 47.0, 48.0, 49.0,
+             50.0, 51.0, 52.0, 53.0, 54.0, 55.0, 56.0, 57.0, 58.0, 59.0,
+             60.0, 61.0, 62.0, 63.0, 64.0, 65.0, 66.0, 67.0, 68.0, 69.0,
+             70.0, 71.0, 72.0, 73.0, 74.0, 75.0, 76.0, 77.0, 78.0, 79.0,
+             80.0, 81.0, 82.0, 83.0, 84.0, 85.0, 86.0, 87.0, 88.0, 89.0,
+             90.0, 91.0, 92.0, 93.0, 94.0, 95.0, 96.0, 97.0, 98.0, 99.0,
+
+             94.3, 89.6, 84.9, 80.2, 75.5, 70.8, 66.1, 61.4, 56.7, 52.0,
+             47.3, 42.6, 37.9, 33.2, 28.5, 23.8, 19.1, 14.4, 9.7, 5.]
+            )
+        assert_allclose(a, b, rtol=1e-5, atol=1e-5)
+
+    def test_check_2d(self):
+        arr = np.arange(20).reshape(4, 5).astype(np.float64)
+        test = np.pad(arr, (2, 2), mode='linear_ramp', end_values=(0, 0))
+        expected = np.array(
+            [[0.,   0.,   0.,   0.,   0.,   0.,   0.,    0.,   0.],
+             [0.,   0.,   0.,  0.5,   1.,  1.5,   2.,    1.,   0.],
+             [0.,   0.,   0.,   1.,   2.,   3.,   4.,    2.,   0.],
+             [0.,  2.5,   5.,   6.,   7.,   8.,   9.,   4.5,   0.],
+             [0.,   5.,  10.,  11.,  12.,  13.,  14.,    7.,   0.],
+             [0.,  7.5,  15.,  16.,  17.,  18.,  19.,   9.5,   0.],
+             [0., 3.75,  7.5,   8.,  8.5,   9.,  9.5,  4.75,   0.],
+             [0.,   0.,   0.,   0.,   0.,   0.,   0.,    0.,   0.]])
+        assert_allclose(test, expected)
+
+    @pytest.mark.xfail(exceptions=(AssertionError,))
+    def test_object_array(self):
+        from fractions import Fraction
+        arr = np.array([Fraction(1, 2), Fraction(-1, 2)])
+        actual = np.pad(arr, (2, 3), mode='linear_ramp', end_values=0)
+
+        # deliberately chosen to have a non-power-of-2 denominator such that
+        # rounding to floats causes a failure.
+        expected = np.array([
+            Fraction( 0, 12),
+            Fraction( 3, 12),
+            Fraction( 6, 12),
+            Fraction(-6, 12),
+            Fraction(-4, 12),
+            Fraction(-2, 12),
+            Fraction(-0, 12),
+        ])
+        assert_equal(actual, expected)
+
+    def test_end_values(self):
+        """Ensure that end values are exact."""
+        a = np.pad(np.ones(10).reshape(2, 5), (223, 123), mode="linear_ramp")
+        assert_equal(a[:, 0], 0.)
+        assert_equal(a[:, -1], 0.)
+        assert_equal(a[0, :], 0.)
+        assert_equal(a[-1, :], 0.)
+
+    @pytest.mark.parametrize("dtype", _numeric_dtypes)
+    def test_negative_difference(self, dtype):
+        """
+        Check correct behavior of unsigned dtypes if there is a negative
+        difference between the edge to pad and `end_values`. Check both cases
+        to be independent of implementation. Test behavior for all other dtypes
+        in case dtype casting interferes with complex dtypes. See gh-14191.
+        """
+        x = np.array([3], dtype=dtype)
+        result = np.pad(x, 3, mode="linear_ramp", end_values=0)
+        expected = np.array([0, 1, 2, 3, 2, 1, 0], dtype=dtype)
+        assert_equal(result, expected)
+
+        x = np.array([0], dtype=dtype)
+        result = np.pad(x, 3, mode="linear_ramp", end_values=3)
+        expected = np.array([3, 2, 1, 0, 1, 2, 3], dtype=dtype)
+        assert_equal(result, expected)
+
+
+class TestReflect:
+    def test_check_simple(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'reflect')
+        b = np.array(
+            [25, 24, 23, 22, 21, 20, 19, 18, 17, 16,
+             15, 14, 13, 12, 11, 10, 9, 8, 7, 6,
+             5, 4, 3, 2, 1,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             98, 97, 96, 95, 94, 93, 92, 91, 90, 89,
+             88, 87, 86, 85, 84, 83, 82, 81, 80, 79]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_odd_method(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'reflect', reflect_type='odd')
+        b = np.array(
+            [-25, -24, -23, -22, -21, -20, -19, -18, -17, -16,
+             -15, -14, -13, -12, -11, -10, -9, -8, -7, -6,
+             -5, -4, -3, -2, -1,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
+             110, 111, 112, 113, 114, 115, 116, 117, 118, 119]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_large_pad(self):
+        a = [[4, 5, 6], [6, 7, 8]]
+        a = np.pad(a, (5, 7), 'reflect')
+        b = np.array(
+            [[7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7, 8, 7, 6, 7],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_shape(self):
+        a = [[4, 5, 6]]
+        a = np.pad(a, (5, 7), 'reflect')
+        b = np.array(
+            [[5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5],
+             [5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5, 6, 5, 4, 5]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_01(self):
+        a = np.pad([1, 2, 3], 2, 'reflect')
+        b = np.array([3, 2, 1, 2, 3, 2, 1])
+        assert_array_equal(a, b)
+
+    def test_check_02(self):
+        a = np.pad([1, 2, 3], 3, 'reflect')
+        b = np.array([2, 3, 2, 1, 2, 3, 2, 1, 2])
+        assert_array_equal(a, b)
+
+    def test_check_03(self):
+        a = np.pad([1, 2, 3], 4, 'reflect')
+        b = np.array([1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3])
+        assert_array_equal(a, b)
+
+    def test_check_04(self):
+        a = np.pad([1, 2, 3], [1, 10], 'reflect')
+        b = np.array([2, 1, 2, 3, 2, 1, 2, 3, 2, 1, 2, 3, 2, 1])
+        assert_array_equal(a, b)
+
+    def test_check_05(self):
+        a = np.pad([1, 2, 3, 4], [45, 10], 'reflect')
+        b = np.array(
+            [4, 3, 2, 1, 2, 3, 4, 3, 2, 1,
+             2, 3, 4, 3, 2, 1, 2, 3, 4, 3,
+             2, 1, 2, 3, 4, 3, 2, 1, 2, 3,
+             4, 3, 2, 1, 2, 3, 4, 3, 2, 1,
+             2, 3, 4, 3, 2, 1, 2, 3, 4, 3,
+             2, 1, 2, 3, 4, 3, 2, 1, 2])
+        assert_array_equal(a, b)
+
+    def test_check_06(self):
+        a = np.pad([1, 2, 3, 4], [15, 2], 'symmetric')
+        b = np.array(
+            [2, 3, 4, 4, 3, 2, 1, 1, 2, 3,
+             4, 4, 3, 2, 1, 1, 2, 3, 4, 4,
+             3]
+        )
+        assert_array_equal(a, b)
+
+    def test_check_07(self):
+        a = np.pad([1, 2, 3, 4, 5, 6], [45, 3], 'symmetric')
+        b = np.array(
+            [4, 5, 6, 6, 5, 4, 3, 2, 1, 1,
+             2, 3, 4, 5, 6, 6, 5, 4, 3, 2,
+             1, 1, 2, 3, 4, 5, 6, 6, 5, 4,
+             3, 2, 1, 1, 2, 3, 4, 5, 6, 6,
+             5, 4, 3, 2, 1, 1, 2, 3, 4, 5,
+             6, 6, 5, 4])
+        assert_array_equal(a, b)
+
+
+class TestEmptyArray:
+    """Check how padding behaves on arrays with an empty dimension."""
+
+    @pytest.mark.parametrize(
+        # Keep parametrization ordered, otherwise pytest-xdist might believe
+        # that different tests were collected during parallelization
+        "mode", sorted(_all_modes.keys() - {"constant", "empty"})
+    )
+    def test_pad_empty_dimension(self, mode):
+        match = ("can't extend empty axis 0 using modes other than 'constant' "
+                 "or 'empty'")
+        with pytest.raises(ValueError, match=match):
+            np.pad([], 4, mode=mode)
+        with pytest.raises(ValueError, match=match):
+            np.pad(np.ndarray(0), 4, mode=mode)
+        with pytest.raises(ValueError, match=match):
+            np.pad(np.zeros((0, 3)), ((1,), (0,)), mode=mode)
+
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_pad_non_empty_dimension(self, mode):
+        result = np.pad(np.ones((2, 0, 2)), ((3,), (0,), (1,)), mode=mode)
+        assert result.shape == (8, 0, 4)
+
+
+class TestSymmetric:
+    def test_check_simple(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'symmetric')
+        b = np.array(
+            [24, 23, 22, 21, 20, 19, 18, 17, 16, 15,
+             14, 13, 12, 11, 10, 9, 8, 7, 6, 5,
+             4, 3, 2, 1, 0,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             99, 98, 97, 96, 95, 94, 93, 92, 91, 90,
+             89, 88, 87, 86, 85, 84, 83, 82, 81, 80]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_odd_method(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'symmetric', reflect_type='odd')
+        b = np.array(
+            [-24, -23, -22, -21, -20, -19, -18, -17, -16, -15,
+             -14, -13, -12, -11, -10, -9, -8, -7, -6, -5,
+             -4, -3, -2, -1, 0,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
+             109, 110, 111, 112, 113, 114, 115, 116, 117, 118]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_large_pad(self):
+        a = [[4, 5, 6], [6, 7, 8]]
+        a = np.pad(a, (5, 7), 'symmetric')
+        b = np.array(
+            [[5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [7, 8, 8, 7, 6, 6, 7, 8, 8, 7, 6, 6, 7, 8, 8],
+             [7, 8, 8, 7, 6, 6, 7, 8, 8, 7, 6, 6, 7, 8, 8],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [7, 8, 8, 7, 6, 6, 7, 8, 8, 7, 6, 6, 7, 8, 8],
+
+             [7, 8, 8, 7, 6, 6, 7, 8, 8, 7, 6, 6, 7, 8, 8],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [7, 8, 8, 7, 6, 6, 7, 8, 8, 7, 6, 6, 7, 8, 8],
+             [7, 8, 8, 7, 6, 6, 7, 8, 8, 7, 6, 6, 7, 8, 8],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6]]
+            )
+
+        assert_array_equal(a, b)
+
+    def test_check_large_pad_odd(self):
+        a = [[4, 5, 6], [6, 7, 8]]
+        a = np.pad(a, (5, 7), 'symmetric', reflect_type='odd')
+        b = np.array(
+            [[-3, -2, -2, -1,  0,  0,  1,  2,  2,  3,  4,  4,  5,  6,  6],
+             [-3, -2, -2, -1,  0,  0,  1,  2,  2,  3,  4,  4,  5,  6,  6],
+             [-1,  0,  0,  1,  2,  2,  3,  4,  4,  5,  6,  6,  7,  8,  8],
+             [-1,  0,  0,  1,  2,  2,  3,  4,  4,  5,  6,  6,  7,  8,  8],
+             [ 1,  2,  2,  3,  4,  4,  5,  6,  6,  7,  8,  8,  9, 10, 10],
+
+             [ 1,  2,  2,  3,  4,  4,  5,  6,  6,  7,  8,  8,  9, 10, 10],
+             [ 3,  4,  4,  5,  6,  6,  7,  8,  8,  9, 10, 10, 11, 12, 12],
+
+             [ 3,  4,  4,  5,  6,  6,  7,  8,  8,  9, 10, 10, 11, 12, 12],
+             [ 5,  6,  6,  7,  8,  8,  9, 10, 10, 11, 12, 12, 13, 14, 14],
+             [ 5,  6,  6,  7,  8,  8,  9, 10, 10, 11, 12, 12, 13, 14, 14],
+             [ 7,  8,  8,  9, 10, 10, 11, 12, 12, 13, 14, 14, 15, 16, 16],
+             [ 7,  8,  8,  9, 10, 10, 11, 12, 12, 13, 14, 14, 15, 16, 16],
+             [ 9, 10, 10, 11, 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18],
+             [ 9, 10, 10, 11, 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_shape(self):
+        a = [[4, 5, 6]]
+        a = np.pad(a, (5, 7), 'symmetric')
+        b = np.array(
+            [[5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6],
+             [5, 6, 6, 5, 4, 4, 5, 6, 6, 5, 4, 4, 5, 6, 6]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_01(self):
+        a = np.pad([1, 2, 3], 2, 'symmetric')
+        b = np.array([2, 1, 1, 2, 3, 3, 2])
+        assert_array_equal(a, b)
+
+    def test_check_02(self):
+        a = np.pad([1, 2, 3], 3, 'symmetric')
+        b = np.array([3, 2, 1, 1, 2, 3, 3, 2, 1])
+        assert_array_equal(a, b)
+
+    def test_check_03(self):
+        a = np.pad([1, 2, 3], 6, 'symmetric')
+        b = np.array([1, 2, 3, 3, 2, 1, 1, 2, 3, 3, 2, 1, 1, 2, 3])
+        assert_array_equal(a, b)
+
+
+class TestWrap:
+    def test_check_simple(self):
+        a = np.arange(100)
+        a = np.pad(a, (25, 20), 'wrap')
+        b = np.array(
+            [75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
+             85, 86, 87, 88, 89, 90, 91, 92, 93, 94,
+             95, 96, 97, 98, 99,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+
+             0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_large_pad(self):
+        a = np.arange(12)
+        a = np.reshape(a, (3, 4))
+        a = np.pad(a, (10, 12), 'wrap')
+        b = np.array(
+            [[10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11],
+             [2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2,
+              3, 0, 1, 2, 3, 0, 1, 2, 3],
+             [6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6,
+              7, 4, 5, 6, 7, 4, 5, 6, 7],
+             [10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10,
+              11, 8, 9, 10, 11, 8, 9, 10, 11]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_01(self):
+        a = np.pad([1, 2, 3], 3, 'wrap')
+        b = np.array([1, 2, 3, 1, 2, 3, 1, 2, 3])
+        assert_array_equal(a, b)
+
+    def test_check_02(self):
+        a = np.pad([1, 2, 3], 4, 'wrap')
+        b = np.array([3, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1])
+        assert_array_equal(a, b)
+
+    def test_pad_with_zero(self):
+        a = np.ones((3, 5))
+        b = np.pad(a, (0, 5), mode="wrap")
+        assert_array_equal(a, b[:-5, :-5])
+
+    def test_repeated_wrapping(self):
+        """
+        Check wrapping on each side individually if the wrapped area is longer
+        than the original array.
+        """
+        a = np.arange(5)
+        b = np.pad(a, (12, 0), mode="wrap")
+        assert_array_equal(np.r_[a, a, a, a][3:], b)
+
+        a = np.arange(5)
+        b = np.pad(a, (0, 12), mode="wrap")
+        assert_array_equal(np.r_[a, a, a, a][:-3], b)
+
+    def test_repeated_wrapping_multiple_origin(self):
+        """
+        Assert that 'wrap' pads only with multiples of the original area if
+        the pad width is larger than the original array.
+        """
+        a = np.arange(4).reshape(2, 2)
+        a = np.pad(a, [(1, 3), (3, 1)], mode='wrap')
+        b = np.array(
+            [[3, 2, 3, 2, 3, 2],
+             [1, 0, 1, 0, 1, 0],
+             [3, 2, 3, 2, 3, 2],
+             [1, 0, 1, 0, 1, 0],
+             [3, 2, 3, 2, 3, 2],
+             [1, 0, 1, 0, 1, 0]]
+        )
+        assert_array_equal(a, b)
+
+
+class TestEdge:
+    def test_check_simple(self):
+        a = np.arange(12)
+        a = np.reshape(a, (4, 3))
+        a = np.pad(a, ((2, 3), (3, 2)), 'edge')
+        b = np.array(
+            [[0, 0, 0, 0, 1, 2, 2, 2],
+             [0, 0, 0, 0, 1, 2, 2, 2],
+
+             [0, 0, 0, 0, 1, 2, 2, 2],
+             [3, 3, 3, 3, 4, 5, 5, 5],
+             [6, 6, 6, 6, 7, 8, 8, 8],
+             [9, 9, 9, 9, 10, 11, 11, 11],
+
+             [9, 9, 9, 9, 10, 11, 11, 11],
+             [9, 9, 9, 9, 10, 11, 11, 11],
+             [9, 9, 9, 9, 10, 11, 11, 11]]
+            )
+        assert_array_equal(a, b)
+
+    def test_check_width_shape_1_2(self):
+        # Check a pad_width of the form ((1, 2),).
+        # Regression test for issue gh-7808.
+        a = np.array([1, 2, 3])
+        padded = np.pad(a, ((1, 2),), 'edge')
+        expected = np.array([1, 1, 2, 3, 3, 3])
+        assert_array_equal(padded, expected)
+
+        a = np.array([[1, 2, 3], [4, 5, 6]])
+        padded = np.pad(a, ((1, 2),), 'edge')
+        expected = np.pad(a, ((1, 2), (1, 2)), 'edge')
+        assert_array_equal(padded, expected)
+
+        a = np.arange(24).reshape(2, 3, 4)
+        padded = np.pad(a, ((1, 2),), 'edge')
+        expected = np.pad(a, ((1, 2), (1, 2), (1, 2)), 'edge')
+        assert_array_equal(padded, expected)
+
+
+class TestEmpty:
+    def test_simple(self):
+        arr = np.arange(24).reshape(4, 6)
+        result = np.pad(arr, [(2, 3), (3, 1)], mode="empty")
+        assert result.shape == (9, 10)
+        assert_equal(arr, result[2:-3, 3:-1])
+
+    def test_pad_empty_dimension(self):
+        arr = np.zeros((3, 0, 2))
+        result = np.pad(arr, [(0,), (2,), (1,)], mode="empty")
+        assert result.shape == (3, 4, 4)
+
+
+def test_legacy_vector_functionality():
+    def _padwithtens(vector, pad_width, iaxis, kwargs):
+        vector[:pad_width[0]] = 10
+        vector[-pad_width[1]:] = 10
+
+    a = np.arange(6).reshape(2, 3)
+    a = np.pad(a, 2, _padwithtens)
+    b = np.array(
+        [[10, 10, 10, 10, 10, 10, 10],
+         [10, 10, 10, 10, 10, 10, 10],
+
+         [10, 10,  0,  1,  2, 10, 10],
+         [10, 10,  3,  4,  5, 10, 10],
+
+         [10, 10, 10, 10, 10, 10, 10],
+         [10, 10, 10, 10, 10, 10, 10]]
+        )
+    assert_array_equal(a, b)
+
+
+def test_unicode_mode():
+    a = np.pad([1], 2, mode='constant')
+    b = np.array([0, 0, 1, 0, 0])
+    assert_array_equal(a, b)
+
+
+@pytest.mark.parametrize("mode", ["edge", "symmetric", "reflect", "wrap"])
+def test_object_input(mode):
+    # Regression test for issue gh-11395.
+    a = np.full((4, 3), fill_value=None)
+    pad_amt = ((2, 3), (3, 2))
+    b = np.full((9, 8), fill_value=None)
+    assert_array_equal(np.pad(a, pad_amt, mode=mode), b)
+
+
+class TestPadWidth:
+    @pytest.mark.parametrize("pad_width", [
+        (4, 5, 6, 7),
+        ((1,), (2,), (3,)),
+        ((1, 2), (3, 4), (5, 6)),
+        ((3, 4, 5), (0, 1, 2)),
+    ])
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_misshaped_pad_width(self, pad_width, mode):
+        arr = np.arange(30).reshape((6, 5))
+        match = "operands could not be broadcast together"
+        with pytest.raises(ValueError, match=match):
+            np.pad(arr, pad_width, mode)
+
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_misshaped_pad_width_2(self, mode):
+        arr = np.arange(30).reshape((6, 5))
+        match = ("input operand has more dimensions than allowed by the axis "
+                 "remapping")
+        with pytest.raises(ValueError, match=match):
+            np.pad(arr, (((3,), (4,), (5,)), ((0,), (1,), (2,))), mode)
+
+    @pytest.mark.parametrize(
+        "pad_width", [-2, (-2,), (3, -1), ((5, 2), (-2, 3)), ((-4,), (2,))])
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_negative_pad_width(self, pad_width, mode):
+        arr = np.arange(30).reshape((6, 5))
+        match = "index can't contain negative values"
+        with pytest.raises(ValueError, match=match):
+            np.pad(arr, pad_width, mode)
+
+    @pytest.mark.parametrize("pad_width, dtype", [
+        ("3", None),
+        ("word", None),
+        (None, None),
+        (object(), None),
+        (3.4, None),
+        (((2, 3, 4), (3, 2)), object),
+        (complex(1, -1), None),
+        (((-2.1, 3), (3, 2)), None),
+    ])
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_bad_type(self, pad_width, dtype, mode):
+        arr = np.arange(30).reshape((6, 5))
+        match = "`pad_width` must be of integral type."
+        if dtype is not None:
+            # avoid DeprecationWarning when not specifying dtype
+            with pytest.raises(TypeError, match=match):
+                np.pad(arr, np.array(pad_width, dtype=dtype), mode)
+        else:
+            with pytest.raises(TypeError, match=match):
+                np.pad(arr, pad_width, mode)
+            with pytest.raises(TypeError, match=match):
+                np.pad(arr, np.array(pad_width), mode)
+
+    def test_pad_width_as_ndarray(self):
+        a = np.arange(12)
+        a = np.reshape(a, (4, 3))
+        a = np.pad(a, np.array(((2, 3), (3, 2))), 'edge')
+        b = np.array(
+            [[0,  0,  0,    0,  1,  2,    2,  2],
+             [0,  0,  0,    0,  1,  2,    2,  2],
+
+             [0,  0,  0,    0,  1,  2,    2,  2],
+             [3,  3,  3,    3,  4,  5,    5,  5],
+             [6,  6,  6,    6,  7,  8,    8,  8],
+             [9,  9,  9,    9, 10, 11,   11, 11],
+
+             [9,  9,  9,    9, 10, 11,   11, 11],
+             [9,  9,  9,    9, 10, 11,   11, 11],
+             [9,  9,  9,    9, 10, 11,   11, 11]]
+            )
+        assert_array_equal(a, b)
+
+    @pytest.mark.parametrize("pad_width", [0, (0, 0), ((0, 0), (0, 0))])
+    @pytest.mark.parametrize("mode", _all_modes.keys())
+    def test_zero_pad_width(self, pad_width, mode):
+        arr = np.arange(30).reshape(6, 5)
+        assert_array_equal(arr, np.pad(arr, pad_width, mode=mode))
+
+
+@pytest.mark.parametrize("mode", _all_modes.keys())
+def test_kwargs(mode):
+    """Test behavior of pad's kwargs for the given mode."""
+    allowed = _all_modes[mode]
+    not_allowed = {}
+    for kwargs in _all_modes.values():
+        if kwargs != allowed:
+            not_allowed.update(kwargs)
+    # Test if allowed keyword arguments pass
+    np.pad([1, 2, 3], 1, mode, **allowed)
+    # Test if prohibited keyword arguments of other modes raise an error
+    for key, value in not_allowed.items():
+        match = f"unsupported keyword arguments for mode '{mode}'"
+        with pytest.raises(ValueError, match=match):
+            np.pad([1, 2, 3], 1, mode, **{key: value})
+
+
+def test_constant_zero_default():
+    arr = np.array([1, 1])
+    assert_array_equal(np.pad(arr, 2), [0, 0, 1, 1, 0, 0])
+
+
+@pytest.mark.parametrize("mode", [1, "const", object(), None, True, False])
+def test_unsupported_mode(mode):
+    match = f"mode '{mode}' is not supported"
+    with pytest.raises(ValueError, match=match):
+        np.pad([1, 2, 3], 4, mode=mode)
+
+
+@pytest.mark.parametrize("mode", _all_modes.keys())
+def test_non_contiguous_array(mode):
+    arr = np.arange(24).reshape(4, 6)[::2, ::2]
+    result = np.pad(arr, (2, 3), mode)
+    assert result.shape == (7, 8)
+    assert_equal(result[2:-3, 2:-3], arr)
+
+
+@pytest.mark.parametrize("mode", _all_modes.keys())
+def test_memory_layout_persistence(mode):
+    """Test if C and F order is preserved for all pad modes."""
+    x = np.ones((5, 10), order='C')
+    assert np.pad(x, 5, mode).flags["C_CONTIGUOUS"]
+    x = np.ones((5, 10), order='F')
+    assert np.pad(x, 5, mode).flags["F_CONTIGUOUS"]
+
+
+@pytest.mark.parametrize("dtype", _numeric_dtypes)
+@pytest.mark.parametrize("mode", _all_modes.keys())
+def test_dtype_persistence(dtype, mode):
+    arr = np.zeros((3, 2, 1), dtype=dtype)
+    result = np.pad(arr, 1, mode=mode)
+    assert result.dtype == dtype
+
+
+@pytest.mark.parametrize("input_shape, pad_width, expected_shape", [
+    ((3, 4, 5), {-2: (1, 3)}, (3, 4 + 1 + 3, 5)),
+    ((3, 4, 5), {0: (5, 2)}, (3 + 5 + 2, 4, 5)),
+    ((3, 4, 5), {0: (5, 2), -1: (3, 4)}, (3 + 5 + 2, 4, 5 + 3 + 4)),
+    ((3, 4, 5), {1: 5}, (3, 4 + 2 * 5, 5)),
+])
+def test_pad_dict_pad_width(input_shape, pad_width, expected_shape):
+    a = np.zeros(input_shape)
+    result = np.pad(a, pad_width)
+    assert result.shape == expected_shape
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arraysetops.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arraysetops.py
new file mode 100644
index 0000000000000000000000000000000000000000..92a77620ff9b9847ca3d62c861e8f3119619409a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arraysetops.py
@@ -0,0 +1,1302 @@
+"""Test functions for 1D array set operations.
+
+"""
+import pytest
+
+import numpy as np
+from numpy import ediff1d, intersect1d, isin, setdiff1d, setxor1d, union1d, unique
+from numpy.dtypes import StringDType
+from numpy.exceptions import AxisError
+from numpy.testing import (
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+class TestSetOps:
+
+    def test_intersect1d(self):
+        # unique inputs
+        a = np.array([5, 7, 1, 2])
+        b = np.array([2, 4, 3, 1, 5])
+
+        ec = np.array([1, 2, 5])
+        c = intersect1d(a, b, assume_unique=True)
+        assert_array_equal(c, ec)
+
+        # non-unique inputs
+        a = np.array([5, 5, 7, 1, 2])
+        b = np.array([2, 1, 4, 3, 3, 1, 5])
+
+        ed = np.array([1, 2, 5])
+        c = intersect1d(a, b)
+        assert_array_equal(c, ed)
+        assert_array_equal([], intersect1d([], []))
+
+    def test_intersect1d_array_like(self):
+        # See gh-11772
+        class Test:
+            def __array__(self, dtype=None, copy=None):
+                return np.arange(3)
+
+        a = Test()
+        res = intersect1d(a, a)
+        assert_array_equal(res, a)
+        res = intersect1d([1, 2, 3], [1, 2, 3])
+        assert_array_equal(res, [1, 2, 3])
+
+    def test_intersect1d_indices(self):
+        # unique inputs
+        a = np.array([1, 2, 3, 4])
+        b = np.array([2, 1, 4, 6])
+        c, i1, i2 = intersect1d(a, b, assume_unique=True, return_indices=True)
+        ee = np.array([1, 2, 4])
+        assert_array_equal(c, ee)
+        assert_array_equal(a[i1], ee)
+        assert_array_equal(b[i2], ee)
+
+        # non-unique inputs
+        a = np.array([1, 2, 2, 3, 4, 3, 2])
+        b = np.array([1, 8, 4, 2, 2, 3, 2, 3])
+        c, i1, i2 = intersect1d(a, b, return_indices=True)
+        ef = np.array([1, 2, 3, 4])
+        assert_array_equal(c, ef)
+        assert_array_equal(a[i1], ef)
+        assert_array_equal(b[i2], ef)
+
+        # non1d, unique inputs
+        a = np.array([[2, 4, 5, 6], [7, 8, 1, 15]])
+        b = np.array([[3, 2, 7, 6], [10, 12, 8, 9]])
+        c, i1, i2 = intersect1d(a, b, assume_unique=True, return_indices=True)
+        ui1 = np.unravel_index(i1, a.shape)
+        ui2 = np.unravel_index(i2, b.shape)
+        ea = np.array([2, 6, 7, 8])
+        assert_array_equal(ea, a[ui1])
+        assert_array_equal(ea, b[ui2])
+
+        # non1d, not assumed to be uniqueinputs
+        a = np.array([[2, 4, 5, 6, 6], [4, 7, 8, 7, 2]])
+        b = np.array([[3, 2, 7, 7], [10, 12, 8, 7]])
+        c, i1, i2 = intersect1d(a, b, return_indices=True)
+        ui1 = np.unravel_index(i1, a.shape)
+        ui2 = np.unravel_index(i2, b.shape)
+        ea = np.array([2, 7, 8])
+        assert_array_equal(ea, a[ui1])
+        assert_array_equal(ea, b[ui2])
+
+    def test_setxor1d(self):
+        a = np.array([5, 7, 1, 2])
+        b = np.array([2, 4, 3, 1, 5])
+
+        ec = np.array([3, 4, 7])
+        c = setxor1d(a, b)
+        assert_array_equal(c, ec)
+
+        a = np.array([1, 2, 3])
+        b = np.array([6, 5, 4])
+
+        ec = np.array([1, 2, 3, 4, 5, 6])
+        c = setxor1d(a, b)
+        assert_array_equal(c, ec)
+
+        a = np.array([1, 8, 2, 3])
+        b = np.array([6, 5, 4, 8])
+
+        ec = np.array([1, 2, 3, 4, 5, 6])
+        c = setxor1d(a, b)
+        assert_array_equal(c, ec)
+
+        assert_array_equal([], setxor1d([], []))
+
+    def test_setxor1d_unique(self):
+        a = np.array([1, 8, 2, 3])
+        b = np.array([6, 5, 4, 8])
+
+        ec = np.array([1, 2, 3, 4, 5, 6])
+        c = setxor1d(a, b, assume_unique=True)
+        assert_array_equal(c, ec)
+
+        a = np.array([[1], [8], [2], [3]])
+        b = np.array([[6, 5], [4, 8]])
+
+        ec = np.array([1, 2, 3, 4, 5, 6])
+        c = setxor1d(a, b, assume_unique=True)
+        assert_array_equal(c, ec)
+
+    def test_ediff1d(self):
+        zero_elem = np.array([])
+        one_elem = np.array([1])
+        two_elem = np.array([1, 2])
+
+        assert_array_equal([], ediff1d(zero_elem))
+        assert_array_equal([0], ediff1d(zero_elem, to_begin=0))
+        assert_array_equal([0], ediff1d(zero_elem, to_end=0))
+        assert_array_equal([-1, 0], ediff1d(zero_elem, to_begin=-1, to_end=0))
+        assert_array_equal([], ediff1d(one_elem))
+        assert_array_equal([1], ediff1d(two_elem))
+        assert_array_equal([7, 1, 9], ediff1d(two_elem, to_begin=7, to_end=9))
+        assert_array_equal([5, 6, 1, 7, 8],
+                           ediff1d(two_elem, to_begin=[5, 6], to_end=[7, 8]))
+        assert_array_equal([1, 9], ediff1d(two_elem, to_end=9))
+        assert_array_equal([1, 7, 8], ediff1d(two_elem, to_end=[7, 8]))
+        assert_array_equal([7, 1], ediff1d(two_elem, to_begin=7))
+        assert_array_equal([5, 6, 1], ediff1d(two_elem, to_begin=[5, 6]))
+
+    @pytest.mark.parametrize("ary, prepend, append, expected", [
+        # should fail because trying to cast
+        # np.nan standard floating point value
+        # into an integer array:
+        (np.array([1, 2, 3], dtype=np.int64),
+         None,
+         np.nan,
+         'to_end'),
+        # should fail because attempting
+        # to downcast to int type:
+        (np.array([1, 2, 3], dtype=np.int64),
+         np.array([5, 7, 2], dtype=np.float32),
+         None,
+         'to_begin'),
+        # should fail because attempting to cast
+        # two special floating point values
+        # to integers (on both sides of ary),
+        # `to_begin` is in the error message as the impl checks this first:
+        (np.array([1., 3., 9.], dtype=np.int8),
+         np.nan,
+         np.nan,
+         'to_begin'),
+         ])
+    def test_ediff1d_forbidden_type_casts(self, ary, prepend, append, expected):
+        # verify resolution of gh-11490
+
+        # specifically, raise an appropriate
+        # Exception when attempting to append or
+        # prepend with an incompatible type
+        msg = f'dtype of `{expected}` must be compatible'
+        with assert_raises_regex(TypeError, msg):
+            ediff1d(ary=ary,
+                    to_end=append,
+                    to_begin=prepend)
+
+    @pytest.mark.parametrize(
+        "ary,prepend,append,expected",
+        [
+         (np.array([1, 2, 3], dtype=np.int16),
+          2**16,  # will be cast to int16 under same kind rule.
+          2**16 + 4,
+          np.array([0, 1, 1, 4], dtype=np.int16)),
+         (np.array([1, 2, 3], dtype=np.float32),
+          np.array([5], dtype=np.float64),
+          None,
+          np.array([5, 1, 1], dtype=np.float32)),
+         (np.array([1, 2, 3], dtype=np.int32),
+          0,
+          0,
+          np.array([0, 1, 1, 0], dtype=np.int32)),
+         (np.array([1, 2, 3], dtype=np.int64),
+          3,
+          -9,
+          np.array([3, 1, 1, -9], dtype=np.int64)),
+        ]
+    )
+    def test_ediff1d_scalar_handling(self,
+                                     ary,
+                                     prepend,
+                                     append,
+                                     expected):
+        # maintain backwards-compatibility
+        # of scalar prepend / append behavior
+        # in ediff1d following fix for gh-11490
+        actual = np.ediff1d(ary=ary,
+                            to_end=append,
+                            to_begin=prepend)
+        assert_equal(actual, expected)
+        assert actual.dtype == expected.dtype
+
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin(self, kind):
+        def _isin_slow(a, b):
+            b = np.asarray(b).flatten().tolist()
+            return a in b
+        isin_slow = np.vectorize(_isin_slow, otypes=[bool], excluded={1})
+
+        def assert_isin_equal(a, b):
+            x = isin(a, b, kind=kind)
+            y = isin_slow(a, b)
+            assert_array_equal(x, y)
+
+        # multidimensional arrays in both arguments
+        a = np.arange(24).reshape([2, 3, 4])
+        b = np.array([[10, 20, 30], [0, 1, 3], [11, 22, 33]])
+        assert_isin_equal(a, b)
+
+        # array-likes as both arguments
+        c = [(9, 8), (7, 6)]
+        d = (9, 7)
+        assert_isin_equal(c, d)
+
+        # zero-d array:
+        f = np.array(3)
+        assert_isin_equal(f, b)
+        assert_isin_equal(a, f)
+        assert_isin_equal(f, f)
+
+        # scalar:
+        assert_isin_equal(5, b)
+        assert_isin_equal(a, 6)
+        assert_isin_equal(5, 6)
+
+        # empty array-like:
+        if kind != "table":
+            # An empty list will become float64,
+            # which is invalid for kind="table"
+            x = []
+            assert_isin_equal(x, b)
+            assert_isin_equal(a, x)
+            assert_isin_equal(x, x)
+
+        # empty array with various types:
+        for dtype in [bool, np.int64, np.float64]:
+            if kind == "table" and dtype == np.float64:
+                continue
+
+            if dtype in {np.int64, np.float64}:
+                ar = np.array([10, 20, 30], dtype=dtype)
+            elif dtype in {bool}:
+                ar = np.array([True, False, False])
+
+            empty_array = np.array([], dtype=dtype)
+
+            assert_isin_equal(empty_array, ar)
+            assert_isin_equal(ar, empty_array)
+            assert_isin_equal(empty_array, empty_array)
+
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin_additional(self, kind):
+        # we use two different sizes for the b array here to test the
+        # two different paths in isin().
+        for mult in (1, 10):
+            # One check without np.array to make sure lists are handled correct
+            a = [5, 7, 1, 2]
+            b = [2, 4, 3, 1, 5] * mult
+            ec = np.array([True, False, True, True])
+            c = isin(a, b, assume_unique=True, kind=kind)
+            assert_array_equal(c, ec)
+
+            a[0] = 8
+            ec = np.array([False, False, True, True])
+            c = isin(a, b, assume_unique=True, kind=kind)
+            assert_array_equal(c, ec)
+
+            a[0], a[3] = 4, 8
+            ec = np.array([True, False, True, False])
+            c = isin(a, b, assume_unique=True, kind=kind)
+            assert_array_equal(c, ec)
+
+            a = np.array([5, 4, 5, 3, 4, 4, 3, 4, 3, 5, 2, 1, 5, 5])
+            b = [2, 3, 4] * mult
+            ec = [False, True, False, True, True, True, True, True, True,
+                  False, True, False, False, False]
+            c = isin(a, b, kind=kind)
+            assert_array_equal(c, ec)
+
+            b = b + [5, 5, 4] * mult
+            ec = [True, True, True, True, True, True, True, True, True, True,
+                  True, False, True, True]
+            c = isin(a, b, kind=kind)
+            assert_array_equal(c, ec)
+
+            a = np.array([5, 7, 1, 2])
+            b = np.array([2, 4, 3, 1, 5] * mult)
+            ec = np.array([True, False, True, True])
+            c = isin(a, b, kind=kind)
+            assert_array_equal(c, ec)
+
+            a = np.array([5, 7, 1, 1, 2])
+            b = np.array([2, 4, 3, 3, 1, 5] * mult)
+            ec = np.array([True, False, True, True, True])
+            c = isin(a, b, kind=kind)
+            assert_array_equal(c, ec)
+
+            a = np.array([5, 5])
+            b = np.array([2, 2] * mult)
+            ec = np.array([False, False])
+            c = isin(a, b, kind=kind)
+            assert_array_equal(c, ec)
+
+        a = np.array([5])
+        b = np.array([2])
+        ec = np.array([False])
+        c = isin(a, b, kind=kind)
+        assert_array_equal(c, ec)
+
+        if kind in {None, "sort"}:
+            assert_array_equal(isin([], [], kind=kind), [])
+
+    def test_isin_char_array(self):
+        a = np.array(['a', 'b', 'c', 'd', 'e', 'c', 'e', 'b'])
+        b = np.array(['a', 'c'])
+
+        ec = np.array([True, False, True, False, False, True, False, False])
+        c = isin(a, b)
+
+        assert_array_equal(c, ec)
+
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin_invert(self, kind):
+        "Test isin's invert parameter"
+        # We use two different sizes for the b array here to test the
+        # two different paths in isin().
+        for mult in (1, 10):
+            a = np.array([5, 4, 5, 3, 4, 4, 3, 4, 3, 5, 2, 1, 5, 5])
+            b = [2, 3, 4] * mult
+            assert_array_equal(np.invert(isin(a, b, kind=kind)),
+                               isin(a, b, invert=True, kind=kind))
+
+        # float:
+        if kind in {None, "sort"}:
+            for mult in (1, 10):
+                a = np.array([5, 4, 5, 3, 4, 4, 3, 4, 3, 5, 2, 1, 5, 5],
+                            dtype=np.float32)
+                b = [2, 3, 4] * mult
+                b = np.array(b, dtype=np.float32)
+                assert_array_equal(np.invert(isin(a, b, kind=kind)),
+                                   isin(a, b, invert=True, kind=kind))
+
+    def test_isin_hit_alternate_algorithm(self):
+        """Hit the standard isin code with integers"""
+        # Need extreme range to hit standard code
+        # This hits it without the use of kind='table'
+        a = np.array([5, 4, 5, 3, 4, 4, 1e9], dtype=np.int64)
+        b = np.array([2, 3, 4, 1e9], dtype=np.int64)
+        expected = np.array([0, 1, 0, 1, 1, 1, 1], dtype=bool)
+        assert_array_equal(expected, isin(a, b))
+        assert_array_equal(np.invert(expected), isin(a, b, invert=True))
+
+        a = np.array([5, 7, 1, 2], dtype=np.int64)
+        b = np.array([2, 4, 3, 1, 5, 1e9], dtype=np.int64)
+        ec = np.array([True, False, True, True])
+        c = isin(a, b, assume_unique=True)
+        assert_array_equal(c, ec)
+
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin_boolean(self, kind):
+        """Test that isin works for boolean input"""
+        a = np.array([True, False])
+        b = np.array([False, False, False])
+        expected = np.array([False, True])
+        assert_array_equal(expected,
+                           isin(a, b, kind=kind))
+        assert_array_equal(np.invert(expected),
+                           isin(a, b, invert=True, kind=kind))
+
+    @pytest.mark.parametrize("kind", [None, "sort"])
+    def test_isin_timedelta(self, kind):
+        """Test that isin works for timedelta input"""
+        rstate = np.random.RandomState(0)
+        a = rstate.randint(0, 100, size=10)
+        b = rstate.randint(0, 100, size=10)
+        truth = isin(a, b)
+        a_timedelta = a.astype("timedelta64[s]")
+        b_timedelta = b.astype("timedelta64[s]")
+        assert_array_equal(truth, isin(a_timedelta, b_timedelta, kind=kind))
+
+    def test_isin_table_timedelta_fails(self):
+        a = np.array([0, 1, 2], dtype="timedelta64[s]")
+        b = a
+        # Make sure it raises a value error:
+        with pytest.raises(ValueError):
+            isin(a, b, kind="table")
+
+    @pytest.mark.parametrize(
+        "dtype1,dtype2",
+        [
+            (np.int8, np.int16),
+            (np.int16, np.int8),
+            (np.uint8, np.uint16),
+            (np.uint16, np.uint8),
+            (np.uint8, np.int16),
+            (np.int16, np.uint8),
+            (np.uint64, np.int64),
+        ]
+    )
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin_mixed_dtype(self, dtype1, dtype2, kind):
+        """Test that isin works as expected for mixed dtype input."""
+        is_dtype2_signed = np.issubdtype(dtype2, np.signedinteger)
+        ar1 = np.array([0, 0, 1, 1], dtype=dtype1)
+
+        if is_dtype2_signed:
+            ar2 = np.array([-128, 0, 127], dtype=dtype2)
+        else:
+            ar2 = np.array([127, 0, 255], dtype=dtype2)
+
+        expected = np.array([True, True, False, False])
+
+        expect_failure = kind == "table" and (
+            dtype1 == np.int16 and dtype2 == np.int8)
+
+        if expect_failure:
+            with pytest.raises(RuntimeError, match="exceed the maximum"):
+                isin(ar1, ar2, kind=kind)
+        else:
+            assert_array_equal(isin(ar1, ar2, kind=kind), expected)
+
+    @pytest.mark.parametrize("data", [
+        np.array([2**63, 2**63 + 1], dtype=np.uint64),
+        np.array([-2**62, -2**62 - 1], dtype=np.int64),
+    ])
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin_mixed_huge_vals(self, kind, data):
+        """Test values outside intp range (negative ones if 32bit system)"""
+        query = data[1]
+        res = np.isin(data, query, kind=kind)
+        assert_array_equal(res, [False, True])
+        # Also check that nothing weird happens for values can't possibly
+        # in range.
+        data = data.astype(np.int32)  # clearly different values
+        res = np.isin(data, query, kind=kind)
+        assert_array_equal(res, [False, False])
+
+    @pytest.mark.parametrize("kind", [None, "sort", "table"])
+    def test_isin_mixed_boolean(self, kind):
+        """Test that isin works as expected for bool/int input."""
+        for dtype in np.typecodes["AllInteger"]:
+            a = np.array([True, False, False], dtype=bool)
+            b = np.array([0, 0, 0, 0], dtype=dtype)
+            expected = np.array([False, True, True], dtype=bool)
+            assert_array_equal(isin(a, b, kind=kind), expected)
+
+            a, b = b, a
+            expected = np.array([True, True, True, True], dtype=bool)
+            assert_array_equal(isin(a, b, kind=kind), expected)
+
+    def test_isin_first_array_is_object(self):
+        ar1 = [None]
+        ar2 = np.array([1] * 10)
+        expected = np.array([False])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+
+    def test_isin_second_array_is_object(self):
+        ar1 = 1
+        ar2 = np.array([None] * 10)
+        expected = np.array([False])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+
+    def test_isin_both_arrays_are_object(self):
+        ar1 = [None]
+        ar2 = np.array([None] * 10)
+        expected = np.array([True])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+
+    def test_isin_both_arrays_have_structured_dtype(self):
+        # Test arrays of a structured data type containing an integer field
+        # and a field of dtype `object` allowing for arbitrary Python objects
+        dt = np.dtype([('field1', int), ('field2', object)])
+        ar1 = np.array([(1, None)], dtype=dt)
+        ar2 = np.array([(1, None)] * 10, dtype=dt)
+        expected = np.array([True])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+
+    def test_isin_with_arrays_containing_tuples(self):
+        ar1 = np.array([(1,), 2], dtype=object)
+        ar2 = np.array([(1,), 2], dtype=object)
+        expected = np.array([True, True])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+        result = np.isin(ar1, ar2, invert=True)
+        assert_array_equal(result, np.invert(expected))
+
+        # An integer is added at the end of the array to make sure
+        # that the array builder will create the array with tuples
+        # and after it's created the integer is removed.
+        # There's a bug in the array constructor that doesn't handle
+        # tuples properly and adding the integer fixes that.
+        ar1 = np.array([(1,), (2, 1), 1], dtype=object)
+        ar1 = ar1[:-1]
+        ar2 = np.array([(1,), (2, 1), 1], dtype=object)
+        ar2 = ar2[:-1]
+        expected = np.array([True, True])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+        result = np.isin(ar1, ar2, invert=True)
+        assert_array_equal(result, np.invert(expected))
+
+        ar1 = np.array([(1,), (2, 3), 1], dtype=object)
+        ar1 = ar1[:-1]
+        ar2 = np.array([(1,), 2], dtype=object)
+        expected = np.array([True, False])
+        result = np.isin(ar1, ar2)
+        assert_array_equal(result, expected)
+        result = np.isin(ar1, ar2, invert=True)
+        assert_array_equal(result, np.invert(expected))
+
+    def test_isin_errors(self):
+        """Test that isin raises expected errors."""
+
+        # Error 1: `kind` is not one of 'sort' 'table' or None.
+        ar1 = np.array([1, 2, 3, 4, 5])
+        ar2 = np.array([2, 4, 6, 8, 10])
+        assert_raises(ValueError, isin, ar1, ar2, kind='quicksort')
+
+        # Error 2: `kind="table"` does not work for non-integral arrays.
+        obj_ar1 = np.array([1, 'a', 3, 'b', 5], dtype=object)
+        obj_ar2 = np.array([1, 'a', 3, 'b', 5], dtype=object)
+        assert_raises(ValueError, isin, obj_ar1, obj_ar2, kind='table')
+
+        for dtype in [np.int32, np.int64]:
+            ar1 = np.array([-1, 2, 3, 4, 5], dtype=dtype)
+            # The range of this array will overflow:
+            overflow_ar2 = np.array([-1, np.iinfo(dtype).max], dtype=dtype)
+
+            # Error 3: `kind="table"` will trigger a runtime error
+            #  if there is an integer overflow expected when computing the
+            #  range of ar2
+            assert_raises(
+                RuntimeError,
+                isin, ar1, overflow_ar2, kind='table'
+            )
+
+            # Non-error: `kind=None` will *not* trigger a runtime error
+            #  if there is an integer overflow, it will switch to
+            #  the `sort` algorithm.
+            result = np.isin(ar1, overflow_ar2, kind=None)
+            assert_array_equal(result, [True] + [False] * 4)
+            result = np.isin(ar1, overflow_ar2, kind='sort')
+            assert_array_equal(result, [True] + [False] * 4)
+
+    def test_union1d(self):
+        a = np.array([5, 4, 7, 1, 2])
+        b = np.array([2, 4, 3, 3, 2, 1, 5])
+
+        ec = np.array([1, 2, 3, 4, 5, 7])
+        c = union1d(a, b)
+        assert_array_equal(c, ec)
+
+        # Tests gh-10340, arguments to union1d should be
+        # flattened if they are not already 1D
+        x = np.array([[0, 1, 2], [3, 4, 5]])
+        y = np.array([0, 1, 2, 3, 4])
+        ez = np.array([0, 1, 2, 3, 4, 5])
+        z = union1d(x, y)
+        assert_array_equal(z, ez)
+
+        assert_array_equal([], union1d([], []))
+
+    def test_setdiff1d(self):
+        a = np.array([6, 5, 4, 7, 1, 2, 7, 4])
+        b = np.array([2, 4, 3, 3, 2, 1, 5])
+
+        ec = np.array([6, 7])
+        c = setdiff1d(a, b)
+        assert_array_equal(c, ec)
+
+        a = np.arange(21)
+        b = np.arange(19)
+        ec = np.array([19, 20])
+        c = setdiff1d(a, b)
+        assert_array_equal(c, ec)
+
+        assert_array_equal([], setdiff1d([], []))
+        a = np.array((), np.uint32)
+        assert_equal(setdiff1d(a, []).dtype, np.uint32)
+
+    def test_setdiff1d_unique(self):
+        a = np.array([3, 2, 1])
+        b = np.array([7, 5, 2])
+        expected = np.array([3, 1])
+        actual = setdiff1d(a, b, assume_unique=True)
+        assert_equal(actual, expected)
+
+    def test_setdiff1d_char_array(self):
+        a = np.array(['a', 'b', 'c'])
+        b = np.array(['a', 'b', 's'])
+        assert_array_equal(setdiff1d(a, b), np.array(['c']))
+
+    def test_manyways(self):
+        a = np.array([5, 7, 1, 2, 8])
+        b = np.array([9, 8, 2, 4, 3, 1, 5])
+
+        c1 = setxor1d(a, b)
+        aux1 = intersect1d(a, b)
+        aux2 = union1d(a, b)
+        c2 = setdiff1d(aux2, aux1)
+        assert_array_equal(c1, c2)
+
+
+class TestUnique:
+
+    def check_all(self, a, b, i1, i2, c, dt):
+        base_msg = 'check {0} failed for type {1}'
+
+        msg = base_msg.format('values', dt)
+        v = unique(a)
+        assert_array_equal(v, b, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format('return_index', dt)
+        v, j = unique(a, True, False, False)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j, i1, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format('return_inverse', dt)
+        v, j = unique(a, False, True, False)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j, i2, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format('return_counts', dt)
+        v, j = unique(a, False, False, True)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j, c, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format('return_index and return_inverse', dt)
+        v, j1, j2 = unique(a, True, True, False)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j1, i1, msg)
+        assert_array_equal(j2, i2, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format('return_index and return_counts', dt)
+        v, j1, j2 = unique(a, True, False, True)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j1, i1, msg)
+        assert_array_equal(j2, c, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format('return_inverse and return_counts', dt)
+        v, j1, j2 = unique(a, False, True, True)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j1, i2, msg)
+        assert_array_equal(j2, c, msg)
+        assert type(v) == type(b)
+
+        msg = base_msg.format(('return_index, return_inverse '
+                                'and return_counts'), dt)
+        v, j1, j2, j3 = unique(a, True, True, True)
+        assert_array_equal(v, b, msg)
+        assert_array_equal(j1, i1, msg)
+        assert_array_equal(j2, i2, msg)
+        assert_array_equal(j3, c, msg)
+        assert type(v) == type(b)
+
+    def get_types(self):
+        types = []
+        types.extend(np.typecodes['AllInteger'])
+        types.extend(np.typecodes['AllFloat'])
+        types.append('datetime64[D]')
+        types.append('timedelta64[D]')
+        return types
+
+    def test_unique_1d(self):
+
+        a = [5, 7, 1, 2, 1, 5, 7] * 10
+        b = [1, 2, 5, 7]
+        i1 = [2, 3, 0, 1]
+        i2 = [2, 3, 0, 1, 0, 2, 3] * 10
+        c = np.multiply([2, 1, 2, 2], 10)
+
+        # test for numeric arrays
+        types = self.get_types()
+        for dt in types:
+            aa = np.array(a, dt)
+            bb = np.array(b, dt)
+            self.check_all(aa, bb, i1, i2, c, dt)
+
+        # test for object arrays
+        dt = 'O'
+        aa = np.empty(len(a), dt)
+        aa[:] = a
+        bb = np.empty(len(b), dt)
+        bb[:] = b
+        self.check_all(aa, bb, i1, i2, c, dt)
+
+        # test for structured arrays
+        dt = [('', 'i'), ('', 'i')]
+        aa = np.array(list(zip(a, a)), dt)
+        bb = np.array(list(zip(b, b)), dt)
+        self.check_all(aa, bb, i1, i2, c, dt)
+
+        # test for ticket #2799
+        aa = [1. + 0.j, 1 - 1.j, 1]
+        assert_array_equal(
+            np.sort(np.unique(aa)),
+            [1. - 1.j, 1.],
+        )
+
+        # test for ticket #4785
+        a = [(1, 2), (1, 2), (2, 3)]
+        unq = [1, 2, 3]
+        inv = [[0, 1], [0, 1], [1, 2]]
+        a1 = unique(a)
+        assert_array_equal(a1, unq)
+        a2, a2_inv = unique(a, return_inverse=True)
+        assert_array_equal(a2, unq)
+        assert_array_equal(a2_inv, inv)
+
+        # test for chararrays with return_inverse (gh-5099)
+        a = np.char.chararray(5)
+        a[...] = ''
+        a2, a2_inv = np.unique(a, return_inverse=True)
+        assert_array_equal(a2_inv, np.zeros(5))
+
+        # test for ticket #9137
+        a = []
+        a1_idx = np.unique(a, return_index=True)[1]
+        a2_inv = np.unique(a, return_inverse=True)[1]
+        a3_idx, a3_inv = np.unique(a, return_index=True,
+                                   return_inverse=True)[1:]
+        assert_equal(a1_idx.dtype, np.intp)
+        assert_equal(a2_inv.dtype, np.intp)
+        assert_equal(a3_idx.dtype, np.intp)
+        assert_equal(a3_inv.dtype, np.intp)
+
+        # test for ticket 2111 - float
+        a = [2.0, np.nan, 1.0, np.nan]
+        ua = [1.0, 2.0, np.nan]
+        ua_idx = [2, 0, 1]
+        ua_inv = [1, 2, 0, 2]
+        ua_cnt = [1, 1, 2]
+        # order of unique values is not guaranteed
+        assert_equal(np.sort(np.unique(a)), np.sort(ua))
+        assert_equal(np.unique(a, return_index=True), (ua, ua_idx))
+        assert_equal(np.unique(a, return_inverse=True), (ua, ua_inv))
+        assert_equal(np.unique(a, return_counts=True), (ua, ua_cnt))
+
+        # test for ticket 2111 - complex
+        a = [2.0 - 1j, np.nan, 1.0 + 1j, complex(0.0, np.nan), complex(1.0, np.nan)]
+        ua = [1.0 + 1j, 2.0 - 1j, complex(0.0, np.nan)]
+        ua_idx = [2, 0, 3]
+        ua_inv = [1, 2, 0, 2, 2]
+        ua_cnt = [1, 1, 3]
+        # order of unique values is not guaranteed
+        assert_equal(np.sort(np.unique(a)), np.sort(ua))
+        assert_equal(np.unique(a, return_index=True), (ua, ua_idx))
+        assert_equal(np.unique(a, return_inverse=True), (ua, ua_inv))
+        assert_equal(np.unique(a, return_counts=True), (ua, ua_cnt))
+
+        # test for ticket 2111 - datetime64
+        nat = np.datetime64('nat')
+        a = [np.datetime64('2020-12-26'), nat, np.datetime64('2020-12-24'), nat]
+        ua = [np.datetime64('2020-12-24'), np.datetime64('2020-12-26'), nat]
+        ua_idx = [2, 0, 1]
+        ua_inv = [1, 2, 0, 2]
+        ua_cnt = [1, 1, 2]
+        assert_equal(np.unique(a), ua)
+        assert_equal(np.unique(a, return_index=True), (ua, ua_idx))
+        assert_equal(np.unique(a, return_inverse=True), (ua, ua_inv))
+        assert_equal(np.unique(a, return_counts=True), (ua, ua_cnt))
+
+        # test for ticket 2111 - timedelta
+        nat = np.timedelta64('nat')
+        a = [np.timedelta64(1, 'D'), nat, np.timedelta64(1, 'h'), nat]
+        ua = [np.timedelta64(1, 'h'), np.timedelta64(1, 'D'), nat]
+        ua_idx = [2, 0, 1]
+        ua_inv = [1, 2, 0, 2]
+        ua_cnt = [1, 1, 2]
+        assert_equal(np.unique(a), ua)
+        assert_equal(np.unique(a, return_index=True), (ua, ua_idx))
+        assert_equal(np.unique(a, return_inverse=True), (ua, ua_inv))
+        assert_equal(np.unique(a, return_counts=True), (ua, ua_cnt))
+
+        # test for gh-19300
+        all_nans = [np.nan] * 4
+        ua = [np.nan]
+        ua_idx = [0]
+        ua_inv = [0, 0, 0, 0]
+        ua_cnt = [4]
+        assert_equal(np.unique(all_nans), ua)
+        assert_equal(np.unique(all_nans, return_index=True), (ua, ua_idx))
+        assert_equal(np.unique(all_nans, return_inverse=True), (ua, ua_inv))
+        assert_equal(np.unique(all_nans, return_counts=True), (ua, ua_cnt))
+
+    def test_unique_zero_sized(self):
+        # test for zero-sized arrays
+        types = self.get_types()
+        types.extend('SU')
+        for dt in types:
+            a = np.array([], dt)
+            b = np.array([], dt)
+            i1 = np.array([], np.int64)
+            i2 = np.array([], np.int64)
+            c = np.array([], np.int64)
+            self.check_all(a, b, i1, i2, c, dt)
+
+    def test_unique_subclass(self):
+        class Subclass(np.ndarray):
+            pass
+
+        i1 = [2, 3, 0, 1]
+        i2 = [2, 3, 0, 1, 0, 2, 3] * 10
+        c = np.multiply([2, 1, 2, 2], 10)
+
+        # test for numeric arrays
+        types = self.get_types()
+        for dt in types:
+            a = np.array([5, 7, 1, 2, 1, 5, 7] * 10, dtype=dt)
+            b = np.array([1, 2, 5, 7], dtype=dt)
+            aa = Subclass(a.shape, dtype=dt, buffer=a)
+            bb = Subclass(b.shape, dtype=dt, buffer=b)
+            self.check_all(aa, bb, i1, i2, c, dt)
+
+    def test_unique_byte_string_hash_based(self):
+        # test for byte string arrays
+        arr = ['apple', 'banana', 'apple', 'cherry', 'date', 'banana', 'fig', 'grape']
+        unq_sorted = ['apple', 'banana', 'cherry', 'date', 'fig', 'grape']
+
+        a1 = unique(arr, sorted=False)
+        # the result varies depending on the impl of std::unordered_set,
+        # so we check them by sorting
+        assert_array_equal(sorted(a1.tolist()), unq_sorted)
+
+    def test_unique_unicode_string_hash_based(self):
+        # test for unicode string arrays
+        arr = [
+            'café', 'cafe', 'café', 'naïve', 'naive',
+            'résumé', 'naïve', 'resume', 'résumé',
+        ]
+        unq_sorted = ['cafe', 'café', 'naive', 'naïve', 'resume', 'résumé']
+
+        a1 = unique(arr, sorted=False)
+        # the result varies depending on the impl of std::unordered_set,
+        # so we check them by sorting
+        assert_array_equal(sorted(a1.tolist()), unq_sorted)
+
+    def test_unique_vstring_hash_based_equal_nan(self):
+        # test for unicode and nullable string arrays (equal_nan=True)
+        a = np.array([
+                # short strings
+                'straße',
+                None,
+                'strasse',
+                'straße',
+                None,
+                'niño',
+                'nino',
+                'élève',
+                'eleve',
+                'niño',
+                'élève',
+                # medium strings
+                'b' * 20,
+                'ß' * 30,
+                None,
+                'é' * 30,
+                'e' * 20,
+                'ß' * 30,
+                'n' * 30,
+                'ñ' * 20,
+                None,
+                'e' * 20,
+                'ñ' * 20,
+                # long strings
+                'b' * 300,
+                'ß' * 400,
+                None,
+                'é' * 400,
+                'e' * 300,
+                'ß' * 400,
+                'n' * 400,
+                'ñ' * 300,
+                None,
+                'e' * 300,
+                'ñ' * 300,
+            ],
+            dtype=StringDType(na_object=None)
+        )
+        unq_sorted_wo_none = [
+            'b' * 20,
+            'b' * 300,
+            'e' * 20,
+            'e' * 300,
+            'eleve',
+            'nino',
+            'niño',
+            'n' * 30,
+            'n' * 400,
+            'strasse',
+            'straße',
+            'ß' * 30,
+            'ß' * 400,
+            'élève',
+            'é' * 30,
+            'é' * 400,
+            'ñ' * 20,
+            'ñ' * 300,
+        ]
+
+        a1 = unique(a, sorted=False, equal_nan=True)
+        # the result varies depending on the impl of std::unordered_set,
+        # so we check them by sorting
+
+        # a1 should have exactly one None
+        count_none = sum(x is None for x in a1)
+        assert_equal(count_none, 1)
+
+        a1_wo_none = sorted(x for x in a1 if x is not None)
+        assert_array_equal(a1_wo_none, unq_sorted_wo_none)
+
+    def test_unique_vstring_hash_based_not_equal_nan(self):
+        # test for unicode and nullable string arrays (equal_nan=False)
+        a = np.array([
+                # short strings
+                'straße',
+                None,
+                'strasse',
+                'straße',
+                None,
+                'niño',
+                'nino',
+                'élève',
+                'eleve',
+                'niño',
+                'élève',
+                # medium strings
+                'b' * 20,
+                'ß' * 30,
+                None,
+                'é' * 30,
+                'e' * 20,
+                'ß' * 30,
+                'n' * 30,
+                'ñ' * 20,
+                None,
+                'e' * 20,
+                'ñ' * 20,
+                # long strings
+                'b' * 300,
+                'ß' * 400,
+                None,
+                'é' * 400,
+                'e' * 300,
+                'ß' * 400,
+                'n' * 400,
+                'ñ' * 300,
+                None,
+                'e' * 300,
+                'ñ' * 300,
+            ],
+            dtype=StringDType(na_object=None)
+        )
+        unq_sorted_wo_none = [
+            'b' * 20,
+            'b' * 300,
+            'e' * 20,
+            'e' * 300,
+            'eleve',
+            'nino',
+            'niño',
+            'n' * 30,
+            'n' * 400,
+            'strasse',
+            'straße',
+            'ß' * 30,
+            'ß' * 400,
+            'élève',
+            'é' * 30,
+            'é' * 400,
+            'ñ' * 20,
+            'ñ' * 300,
+        ]
+
+        a1 = unique(a, sorted=False, equal_nan=False)
+        # the result varies depending on the impl of std::unordered_set,
+        # so we check them by sorting
+
+        # a1 should have exactly one None
+        count_none = sum(x is None for x in a1)
+        assert_equal(count_none, 6)
+
+        a1_wo_none = sorted(x for x in a1 if x is not None)
+        assert_array_equal(a1_wo_none, unq_sorted_wo_none)
+
+    def test_unique_vstring_errors(self):
+        a = np.array(
+            [
+                'apple', 'banana', 'apple', None, 'cherry',
+                'date', 'banana', 'fig', None, 'grape',
+            ] * 2,
+            dtype=StringDType(na_object=None)
+        )
+        assert_raises(ValueError, unique, a, equal_nan=False)
+
+    @pytest.mark.parametrize("arg", ["return_index", "return_inverse", "return_counts"])
+    def test_unsupported_hash_based(self, arg):
+        """These currently never use the hash-based solution.  However,
+        it seems easier to just allow it.
+
+        When the hash-based solution is added, this test should fail and be
+        replaced with something more comprehensive.
+        """
+        a = np.array([1, 5, 2, 3, 4, 8, 199, 1, 3, 5])
+
+        res_not_sorted = np.unique([1, 1], sorted=False, **{arg: True})
+        res_sorted = np.unique([1, 1], sorted=True, **{arg: True})
+        # The following should fail without first sorting `res_not_sorted`.
+        for arr, expected in zip(res_not_sorted, res_sorted):
+            assert_array_equal(arr, expected)
+
+    def test_unique_axis_errors(self):
+        assert_raises(TypeError, self._run_axis_tests, object)
+        assert_raises(TypeError, self._run_axis_tests,
+                      [('a', int), ('b', object)])
+
+        assert_raises(AxisError, unique, np.arange(10), axis=2)
+        assert_raises(AxisError, unique, np.arange(10), axis=-2)
+
+    def test_unique_axis_list(self):
+        msg = "Unique failed on list of lists"
+        inp = [[0, 1, 0], [0, 1, 0]]
+        inp_arr = np.asarray(inp)
+        assert_array_equal(unique(inp, axis=0), unique(inp_arr, axis=0), msg)
+        assert_array_equal(unique(inp, axis=1), unique(inp_arr, axis=1), msg)
+
+    def test_unique_axis(self):
+        types = []
+        types.extend(np.typecodes['AllInteger'])
+        types.extend(np.typecodes['AllFloat'])
+        types.append('datetime64[D]')
+        types.append('timedelta64[D]')
+        types.append([('a', int), ('b', int)])
+        types.append([('a', int), ('b', float)])
+
+        for dtype in types:
+            self._run_axis_tests(dtype)
+
+        msg = 'Non-bitwise-equal booleans test failed'
+        data = np.arange(10, dtype=np.uint8).reshape(-1, 2).view(bool)
+        result = np.array([[False, True], [True, True]], dtype=bool)
+        assert_array_equal(unique(data, axis=0), result, msg)
+
+        msg = 'Negative zero equality test failed'
+        data = np.array([[-0.0, 0.0], [0.0, -0.0], [-0.0, 0.0], [0.0, -0.0]])
+        result = np.array([[-0.0, 0.0]])
+        assert_array_equal(unique(data, axis=0), result, msg)
+
+    @pytest.mark.parametrize("axis", [0, -1])
+    def test_unique_1d_with_axis(self, axis):
+        x = np.array([4, 3, 2, 3, 2, 1, 2, 2])
+        uniq = unique(x, axis=axis)
+        assert_array_equal(uniq, [1, 2, 3, 4])
+
+    @pytest.mark.parametrize("axis", [None, 0, -1])
+    def test_unique_inverse_with_axis(self, axis):
+        x = np.array([[4, 4, 3], [2, 2, 1], [2, 2, 1], [4, 4, 3]])
+        uniq, inv = unique(x, return_inverse=True, axis=axis)
+        assert_equal(inv.ndim, x.ndim if axis is None else 1)
+        assert_array_equal(x, np.take(uniq, inv, axis=axis))
+
+    def test_unique_axis_zeros(self):
+        # issue 15559
+        single_zero = np.empty(shape=(2, 0), dtype=np.int8)
+        uniq, idx, inv, cnt = unique(single_zero, axis=0, return_index=True,
+                                     return_inverse=True, return_counts=True)
+
+        # there's 1 element of shape (0,) along axis 0
+        assert_equal(uniq.dtype, single_zero.dtype)
+        assert_array_equal(uniq, np.empty(shape=(1, 0)))
+        assert_array_equal(idx, np.array([0]))
+        assert_array_equal(inv, np.array([0, 0]))
+        assert_array_equal(cnt, np.array([2]))
+
+        # there's 0 elements of shape (2,) along axis 1
+        uniq, idx, inv, cnt = unique(single_zero, axis=1, return_index=True,
+                                     return_inverse=True, return_counts=True)
+
+        assert_equal(uniq.dtype, single_zero.dtype)
+        assert_array_equal(uniq, np.empty(shape=(2, 0)))
+        assert_array_equal(idx, np.array([]))
+        assert_array_equal(inv, np.array([]))
+        assert_array_equal(cnt, np.array([]))
+
+        # test a "complicated" shape
+        shape = (0, 2, 0, 3, 0, 4, 0)
+        multiple_zeros = np.empty(shape=shape)
+        for axis in range(len(shape)):
+            expected_shape = list(shape)
+            if shape[axis] == 0:
+                expected_shape[axis] = 0
+            else:
+                expected_shape[axis] = 1
+
+            assert_array_equal(unique(multiple_zeros, axis=axis),
+                               np.empty(shape=expected_shape))
+
+    def test_unique_masked(self):
+        # issue 8664
+        x = np.array([64, 0, 1, 2, 3, 63, 63, 0, 0, 0, 1, 2, 0, 63, 0],
+                     dtype='uint8')
+        y = np.ma.masked_equal(x, 0)
+
+        v = np.unique(y)
+        v2, i, c = np.unique(y, return_index=True, return_counts=True)
+
+        msg = 'Unique returned different results when asked for index'
+        assert_array_equal(v.data, v2.data, msg)
+        assert_array_equal(v.mask, v2.mask, msg)
+
+    def test_unique_sort_order_with_axis(self):
+        # These tests fail if sorting along axis is done by treating subarrays
+        # as unsigned byte strings.  See gh-10495.
+        fmt = "sort order incorrect for integer type '%s'"
+        for dt in 'bhilq':
+            a = np.array([[-1], [0]], dt)
+            b = np.unique(a, axis=0)
+            assert_array_equal(a, b, fmt % dt)
+
+    def _run_axis_tests(self, dtype):
+        data = np.array([[0, 1, 0, 0],
+                         [1, 0, 0, 0],
+                         [0, 1, 0, 0],
+                         [1, 0, 0, 0]]).astype(dtype)
+
+        msg = 'Unique with 1d array and axis=0 failed'
+        result = np.array([0, 1])
+        assert_array_equal(unique(data), result.astype(dtype), msg)
+
+        msg = 'Unique with 2d array and axis=0 failed'
+        result = np.array([[0, 1, 0, 0], [1, 0, 0, 0]])
+        assert_array_equal(unique(data, axis=0), result.astype(dtype), msg)
+
+        msg = 'Unique with 2d array and axis=1 failed'
+        result = np.array([[0, 0, 1], [0, 1, 0], [0, 0, 1], [0, 1, 0]])
+        assert_array_equal(unique(data, axis=1), result.astype(dtype), msg)
+
+        msg = 'Unique with 3d array and axis=2 failed'
+        data3d = np.array([[[1, 1],
+                            [1, 0]],
+                           [[0, 1],
+                            [0, 0]]]).astype(dtype)
+        result = np.take(data3d, [1, 0], axis=2)
+        assert_array_equal(unique(data3d, axis=2), result, msg)
+
+        uniq, idx, inv, cnt = unique(data, axis=0, return_index=True,
+                                     return_inverse=True, return_counts=True)
+        msg = "Unique's return_index=True failed with axis=0"
+        assert_array_equal(data[idx], uniq, msg)
+        msg = "Unique's return_inverse=True failed with axis=0"
+        assert_array_equal(np.take(uniq, inv, axis=0), data)
+        msg = "Unique's return_counts=True failed with axis=0"
+        assert_array_equal(cnt, np.array([2, 2]), msg)
+
+        uniq, idx, inv, cnt = unique(data, axis=1, return_index=True,
+                                     return_inverse=True, return_counts=True)
+        msg = "Unique's return_index=True failed with axis=1"
+        assert_array_equal(data[:, idx], uniq)
+        msg = "Unique's return_inverse=True failed with axis=1"
+        assert_array_equal(np.take(uniq, inv, axis=1), data)
+        msg = "Unique's return_counts=True failed with axis=1"
+        assert_array_equal(cnt, np.array([2, 1, 1]), msg)
+
+    def test_unique_nanequals(self):
+        # issue 20326
+        a = np.array([1, 1, np.nan, np.nan, np.nan])
+        unq = np.unique(a)
+        not_unq = np.unique(a, equal_nan=False)
+        assert_array_equal(unq, np.array([1, np.nan]))
+        assert_array_equal(not_unq, np.array([1, np.nan, np.nan, np.nan]))
+
+    def test_unique_array_api_functions(self):
+        arr = np.array(
+            [
+                np.nan, 1.0, 0.0, 4.0, -np.nan,
+                -0.0, 1.0, 3.0, 4.0, np.nan,
+                5.0, -0.0, 1.0, -np.nan, 0.0,
+            ],
+        )
+
+        for res_unique_array_api, res_unique in [
+            (
+                np.unique_values(arr),
+                np.unique(arr, equal_nan=False)
+            ),
+            (
+                np.unique_counts(arr),
+                np.unique(arr, return_counts=True, equal_nan=False)
+            ),
+            (
+                np.unique_inverse(arr),
+                np.unique(arr, return_inverse=True, equal_nan=False)
+            ),
+            (
+                np.unique_all(arr),
+                np.unique(
+                    arr,
+                    return_index=True,
+                    return_inverse=True,
+                    return_counts=True,
+                    equal_nan=False
+                )
+            )
+        ]:
+            assert len(res_unique_array_api) == len(res_unique)
+            if not isinstance(res_unique_array_api, tuple):
+                res_unique_array_api = (res_unique_array_api,)
+            if not isinstance(res_unique, tuple):
+                res_unique = (res_unique,)
+
+            for actual, expected in zip(res_unique_array_api, res_unique):
+                # Order of output is not guaranteed
+                assert_equal(np.sort(actual), np.sort(expected))
+
+    def test_unique_inverse_shape(self):
+        # Regression test for https://github.com/numpy/numpy/issues/25552
+        arr = np.array([[1, 2, 3], [2, 3, 1]])
+        expected_values, expected_inverse = np.unique(arr, return_inverse=True)
+        expected_inverse = expected_inverse.reshape(arr.shape)
+        for func in np.unique_inverse, np.unique_all:
+            result = func(arr)
+            assert_array_equal(expected_values, result.values)
+            assert_array_equal(expected_inverse, result.inverse_indices)
+            assert_array_equal(arr, result.values[result.inverse_indices])
+
+    @pytest.mark.parametrize(
+        'data',
+        [[[1, 1, 1],
+          [1, 1, 1]],
+         [1, 3, 2],
+         1],
+    )
+    @pytest.mark.parametrize('transpose', [False, True])
+    @pytest.mark.parametrize('dtype', [np.int32, np.float64])
+    def test_unique_with_matrix(self, data, transpose, dtype):
+        mat = np.matrix(data).astype(dtype)
+        if transpose:
+            mat = mat.T
+        u = np.unique(mat)
+        expected = np.unique(np.asarray(mat))
+        assert_array_equal(u, expected, strict=True)
+
+    def test_unique_axis0_equal_nan_on_1d_array(self):
+        # Test Issue #29336
+        arr1d = np.array([np.nan, 0, 0, np.nan])
+        expected = np.array([0., np.nan])
+        result = np.unique(arr1d, axis=0, equal_nan=True)
+        assert_array_equal(result, expected)
+
+    def test_unique_axis_minus1_eq_on_1d_array(self):
+        arr1d = np.array([np.nan, 0, 0, np.nan])
+        expected = np.array([0., np.nan])
+        result = np.unique(arr1d, axis=-1, equal_nan=True)
+        assert_array_equal(result, expected)
+
+    def test_unique_axis_float_raises_typeerror(self):
+        arr1d = np.array([np.nan, 0, 0, np.nan])
+        with pytest.raises(TypeError, match="integer argument expected"):
+            np.unique(arr1d, axis=0.0, equal_nan=False)
+
+    @pytest.mark.parametrize('dt', [np.dtype('F'), np.dtype('D')])
+    @pytest.mark.parametrize('values', [[complex(0.0, -1), complex(-0.0, -1), 0],
+                                        [-200, complex(-200, -0.0), -1],
+                                        [-25, 3, -5j, complex(-25, -0.0), 3j]])
+    def test_unique_complex_signed_zeros(self, dt, values):
+        z = np.array(values, dtype=dt)
+        u = np.unique(z)
+        assert len(u) == len(values) - 1
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arrayterator.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arrayterator.py
new file mode 100644
index 0000000000000000000000000000000000000000..cb9208bb0645346efc3ccd8fd4c28ab4cb4f799d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_arrayterator.py
@@ -0,0 +1,45 @@
+from functools import reduce
+from operator import mul
+
+import numpy as np
+from numpy.lib import Arrayterator
+from numpy.random import randint
+from numpy.testing import assert_
+
+
+def test():
+    np.random.seed(np.arange(10))
+
+    # Create a random array
+    ndims = randint(5) + 1
+    shape = tuple(randint(10) + 1 for dim in range(ndims))
+    els = reduce(mul, shape)
+    a = np.arange(els).reshape(shape)
+
+    buf_size = randint(2 * els)
+    b = Arrayterator(a, buf_size)
+
+    # Check that each block has at most ``buf_size`` elements
+    for block in b:
+        assert_(len(block.flat) <= (buf_size or els))
+
+    # Check that all elements are iterated correctly
+    assert_(list(b.flat) == list(a.flat))
+
+    # Slice arrayterator
+    start = [randint(dim) for dim in shape]
+    stop = [randint(dim) + 1 for dim in shape]
+    step = [randint(dim) + 1 for dim in shape]
+    slice_ = tuple(slice(*t) for t in zip(start, stop, step))
+    c = b[slice_]
+    d = a[slice_]
+
+    # Check that each block has at most ``buf_size`` elements
+    for block in c:
+        assert_(len(block.flat) <= (buf_size or els))
+
+    # Check that the arrayterator is sliced correctly
+    assert_(np.all(c.__array__() == d))
+
+    # Check that all elements are iterated correctly
+    assert_(list(c.flat) == list(d.flat))
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_format.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_format.py
new file mode 100644
index 0000000000000000000000000000000000000000..cb1bdb53157ba59a436cb99f341e0068dd07bcf1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_format.py
@@ -0,0 +1,1054 @@
+# doctest
+r''' Test the .npy file format.
+
+Set up:
+
+    >>> import sys
+    >>> from io import BytesIO
+    >>> from numpy.lib import format
+    >>>
+    >>> scalars = [
+    ...     np.uint8,
+    ...     np.int8,
+    ...     np.uint16,
+    ...     np.int16,
+    ...     np.uint32,
+    ...     np.int32,
+    ...     np.uint64,
+    ...     np.int64,
+    ...     np.float32,
+    ...     np.float64,
+    ...     np.complex64,
+    ...     np.complex128,
+    ...     object,
+    ... ]
+    >>>
+    >>> basic_arrays = []
+    >>>
+    >>> for scalar in scalars:
+    ...     for endian in '<>':
+    ...         dtype = np.dtype(scalar).newbyteorder(endian)
+    ...         basic = np.arange(15).astype(dtype)
+    ...         basic_arrays.extend([
+    ...             np.array([], dtype=dtype),
+    ...             np.array(10, dtype=dtype),
+    ...             basic,
+    ...             basic.reshape((3,5)),
+    ...             basic.reshape((3,5)).T,
+    ...             basic.reshape((3,5))[::-1,::2],
+    ...         ])
+    ...
+    >>>
+    >>> Pdescr = [
+    ...     ('x', 'i4', (2,)),
+    ...     ('y', 'f8', (2, 2)),
+    ...     ('z', 'u1')]
+    >>>
+    >>>
+    >>> PbufferT = [
+    ...     ([3,2], [[6.,4.],[6.,4.]], 8),
+    ...     ([4,3], [[7.,5.],[7.,5.]], 9),
+    ...     ]
+    >>>
+    >>>
+    >>> Ndescr = [
+    ...     ('x', 'i4', (2,)),
+    ...     ('Info', [
+    ...         ('value', 'c16'),
+    ...         ('y2', 'f8'),
+    ...         ('Info2', [
+    ...             ('name', 'S2'),
+    ...             ('value', 'c16', (2,)),
+    ...             ('y3', 'f8', (2,)),
+    ...             ('z3', 'u4', (2,))]),
+    ...         ('name', 'S2'),
+    ...         ('z2', 'b1')]),
+    ...     ('color', 'S2'),
+    ...     ('info', [
+    ...         ('Name', 'U8'),
+    ...         ('Value', 'c16')]),
+    ...     ('y', 'f8', (2, 2)),
+    ...     ('z', 'u1')]
+    >>>
+    >>>
+    >>> NbufferT = [
+    ...     ([3,2], (6j, 6., ('nn', [6j,4j], [6.,4.], [1,2]), 'NN', True), 'cc', ('NN', 6j), [[6.,4.],[6.,4.]], 8),
+    ...     ([4,3], (7j, 7., ('oo', [7j,5j], [7.,5.], [2,1]), 'OO', False), 'dd', ('OO', 7j), [[7.,5.],[7.,5.]], 9),
+    ...     ]
+    >>>
+    >>>
+    >>> record_arrays = [
+    ...     np.array(PbufferT, dtype=np.dtype(Pdescr).newbyteorder('<')),
+    ...     np.array(NbufferT, dtype=np.dtype(Ndescr).newbyteorder('<')),
+    ...     np.array(PbufferT, dtype=np.dtype(Pdescr).newbyteorder('>')),
+    ...     np.array(NbufferT, dtype=np.dtype(Ndescr).newbyteorder('>')),
+    ... ]
+
+Test the magic string writing.
+
+    >>> format.magic(1, 0)
+    '\x93NUMPY\x01\x00'
+    >>> format.magic(0, 0)
+    '\x93NUMPY\x00\x00'
+    >>> format.magic(255, 255)
+    '\x93NUMPY\xff\xff'
+    >>> format.magic(2, 5)
+    '\x93NUMPY\x02\x05'
+
+Test the magic string reading.
+
+    >>> format.read_magic(BytesIO(format.magic(1, 0)))
+    (1, 0)
+    >>> format.read_magic(BytesIO(format.magic(0, 0)))
+    (0, 0)
+    >>> format.read_magic(BytesIO(format.magic(255, 255)))
+    (255, 255)
+    >>> format.read_magic(BytesIO(format.magic(2, 5)))
+    (2, 5)
+
+Test the header writing.
+
+    >>> for arr in basic_arrays + record_arrays:
+    ...     f = BytesIO()
+    ...     format.write_array_header_1_0(f, arr)   # XXX: arr is not a dict, items gets called on it
+    ...     print(repr(f.getvalue()))
+    ...
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '|u1', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '|u1', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '|u1', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '|i1', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '|i1', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '|i1', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<u2', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<u2', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>u2', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>u2', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<i2', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<i2', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>i2', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>i2', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<u4', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<u4', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>u4', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>u4', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<i4', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<i4', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>i4', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>i4', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<u8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<u8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>u8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>u8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<i8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<i8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>i8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>i8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<f4', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<f4', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>f4', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>f4', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<f8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<f8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>f8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>f8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '<c8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '<c8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': '>c8', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': '>c8', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (0,)}             \n"
+    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': ()}               \n"
+    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (15,)}            \n"
+    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (3, 5)}           \n"
+    "F\x00{'descr': '<c16', 'fortran_order': True, 'shape': (5, 3)}            \n"
+    "F\x00{'descr': '<c16', 'fortran_order': False, 'shape': (3, 3)}           \n"
+    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (0,)}             \n"
+    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': ()}               \n"
+    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (15,)}            \n"
+    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (3, 5)}           \n"
+    "F\x00{'descr': '>c16', 'fortran_order': True, 'shape': (5, 3)}            \n"
+    "F\x00{'descr': '>c16', 'fortran_order': False, 'shape': (3, 3)}           \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': 'O', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (0,)}              \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': ()}                \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (15,)}             \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 5)}            \n"
+    "F\x00{'descr': 'O', 'fortran_order': True, 'shape': (5, 3)}             \n"
+    "F\x00{'descr': 'O', 'fortran_order': False, 'shape': (3, 3)}            \n"
+    "v\x00{'descr': [('x', '<i4', (2,)), ('y', '<f8', (2, 2)), ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}         \n"
+    "\x16\x02{'descr': [('x', '<i4', (2,)),\n           ('Info',\n            [('value', '<c16'),\n             ('y2', '<f8'),\n             ('Info2',\n              [('name', '|S2'),\n               ('value', '<c16', (2,)),\n               ('y3', '<f8', (2,)),\n               ('z3', '<u4', (2,))]),\n             ('name', '|S2'),\n             ('z2', '|b1')]),\n           ('color', '|S2'),\n           ('info', [('Name', '<U8'), ('Value', '<c16')]),\n           ('y', '<f8', (2, 2)),\n           ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}      \n"
+    "v\x00{'descr': [('x', '>i4', (2,)), ('y', '>f8', (2, 2)), ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}         \n"
+    "\x16\x02{'descr': [('x', '>i4', (2,)),\n           ('Info',\n            [('value', '>c16'),\n             ('y2', '>f8'),\n             ('Info2',\n              [('name', '|S2'),\n               ('value', '>c16', (2,)),\n               ('y3', '>f8', (2,)),\n               ('z3', '>u4', (2,))]),\n             ('name', '|S2'),\n             ('z2', '|b1')]),\n           ('color', '|S2'),\n           ('info', [('Name', '>U8'), ('Value', '>c16')]),\n           ('y', '>f8', (2, 2)),\n           ('z', '|u1')],\n 'fortran_order': False,\n 'shape': (2,)}      \n"
+'''
+import os
+import sys
+import warnings
+from io import BytesIO
+
+import pytest
+
+import numpy as np
+from numpy.lib import format
+from numpy.testing import (
+    IS_64BIT,
+    IS_PYPY,
+    IS_WASM,
+    assert_,
+    assert_array_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+from numpy.testing._private.utils import requires_memory
+
+# Generate some basic arrays to test with.
+scalars = [
+    np.uint8,
+    np.int8,
+    np.uint16,
+    np.int16,
+    np.uint32,
+    np.int32,
+    np.uint64,
+    np.int64,
+    np.float32,
+    np.float64,
+    np.complex64,
+    np.complex128,
+    object,
+]
+basic_arrays = []
+for scalar in scalars:
+    for endian in '<>':
+        dtype = np.dtype(scalar).newbyteorder(endian)
+        basic = np.arange(1500).astype(dtype)
+        basic_arrays.extend([
+            # Empty
+            np.array([], dtype=dtype),
+            # Rank-0
+            np.array(10, dtype=dtype),
+            # 1-D
+            basic,
+            # 2-D C-contiguous
+            basic.reshape((30, 50)),
+            # 2-D F-contiguous
+            basic.reshape((30, 50)).T,
+            # 2-D non-contiguous
+            basic.reshape((30, 50))[::-1, ::2],
+        ])
+
+# More complicated record arrays.
+# This is the structure of the table used for plain objects:
+#
+# +-+-+-+
+# |x|y|z|
+# +-+-+-+
+
+# Structure of a plain array description:
+Pdescr = [
+    ('x', 'i4', (2,)),
+    ('y', 'f8', (2, 2)),
+    ('z', 'u1')]
+
+# A plain list of tuples with values for testing:
+PbufferT = [
+    # x     y                  z
+    ([3, 2], [[6., 4.], [6., 4.]], 8),
+    ([4, 3], [[7., 5.], [7., 5.]], 9),
+    ]
+
+
+# This is the structure of the table used for nested objects (DON'T PANIC!):
+#
+# +-+---------------------------------+-----+----------+-+-+
+# |x|Info                             |color|info      |y|z|
+# | +-----+--+----------------+----+--+     +----+-----+ | |
+# | |value|y2|Info2           |name|z2|     |Name|Value| | |
+# | |     |  +----+-----+--+--+    |  |     |    |     | | |
+# | |     |  |name|value|y3|z3|    |  |     |    |     | | |
+# +-+-----+--+----+-----+--+--+----+--+-----+----+-----+-+-+
+#
+
+# The corresponding nested array description:
+Ndescr = [
+    ('x', 'i4', (2,)),
+    ('Info', [
+        ('value', 'c16'),
+        ('y2', 'f8'),
+        ('Info2', [
+            ('name', 'S2'),
+            ('value', 'c16', (2,)),
+            ('y3', 'f8', (2,)),
+            ('z3', 'u4', (2,))]),
+        ('name', 'S2'),
+        ('z2', 'b1')]),
+    ('color', 'S2'),
+    ('info', [
+        ('Name', 'U8'),
+        ('Value', 'c16')]),
+    ('y', 'f8', (2, 2)),
+    ('z', 'u1')]
+
+NbufferT = [
+    ([3, 2], (6j, 6., ('nn', [6j, 4j], [6., 4.], [1, 2]), 'NN', True),
+     'cc', ('NN', 6j), [[6., 4.], [6., 4.]], 8),
+    ([4, 3], (7j, 7., ('oo', [7j, 5j], [7., 5.], [2, 1]), 'OO', False),
+     'dd', ('OO', 7j), [[7., 5.], [7., 5.]], 9),
+    ]
+
+record_arrays = [
+    np.array(PbufferT, dtype=np.dtype(Pdescr).newbyteorder('<')),
+    np.array(NbufferT, dtype=np.dtype(Ndescr).newbyteorder('<')),
+    np.array(PbufferT, dtype=np.dtype(Pdescr).newbyteorder('>')),
+    np.array(NbufferT, dtype=np.dtype(Ndescr).newbyteorder('>')),
+    np.zeros(1, dtype=[('c', ('<f8', (5,)), (2,))])
+]
+
+
+# BytesIO that reads a random number of bytes at a time
+class BytesIOSRandomSize(BytesIO):
+    def read(self, size=None):
+        import random
+        size = random.randint(1, size)
+        return super().read(size)
+
+
+def roundtrip(arr):
+    f = BytesIO()
+    format.write_array(f, arr)
+    f2 = BytesIO(f.getvalue())
+    arr2 = format.read_array(f2, allow_pickle=True)
+    return arr2
+
+
+def roundtrip_randsize(arr):
+    f = BytesIO()
+    format.write_array(f, arr)
+    f2 = BytesIOSRandomSize(f.getvalue())
+    arr2 = format.read_array(f2)
+    return arr2
+
+
+def roundtrip_truncated(arr):
+    f = BytesIO()
+    format.write_array(f, arr)
+    # BytesIO is one byte short
+    f2 = BytesIO(f.getvalue()[0:-1])
+    arr2 = format.read_array(f2)
+    return arr2
+
+def assert_equal_(o1, o2):
+    assert_(o1 == o2)
+
+
+def test_roundtrip():
+    for arr in basic_arrays + record_arrays:
+        arr2 = roundtrip(arr)
+        assert_array_equal(arr, arr2)
+
+
+def test_roundtrip_randsize():
+    for arr in basic_arrays + record_arrays:
+        if arr.dtype != object:
+            arr2 = roundtrip_randsize(arr)
+            assert_array_equal(arr, arr2)
+
+
+def test_roundtrip_truncated():
+    for arr in basic_arrays:
+        if arr.dtype != object:
+            assert_raises(ValueError, roundtrip_truncated, arr)
+
+def test_file_truncated(tmp_path):
+    path = tmp_path / "a.npy"
+    for arr in basic_arrays:
+        if arr.dtype != object:
+            with open(path, 'wb') as f:
+                format.write_array(f, arr)
+            # truncate the file by one byte
+            with open(path, 'rb+') as f:
+                f.seek(-1, os.SEEK_END)
+                f.truncate()
+            with open(path, 'rb') as f:
+                with pytest.raises(
+                    ValueError,
+                    match=(
+                        r"EOF: reading array header, "
+                        r"expected (\d+) bytes got (\d+)"
+                    ) if arr.size == 0 else (
+                        r"Failed to read all data for array\. "
+                        r"Expected \(.*?\) = (\d+) elements, "
+                        r"could only read (\d+) elements\. "
+                        r"\(file seems not fully written\?\)"
+                    )
+                ):
+                    _ = format.read_array(f)
+
+def test_long_str():
+    # check items larger than internal buffer size, gh-4027
+    long_str_arr = np.ones(1, dtype=np.dtype((str, format.BUFFER_SIZE + 1)))
+    long_str_arr2 = roundtrip(long_str_arr)
+    assert_array_equal(long_str_arr, long_str_arr2)
+
+
+@pytest.mark.skipif(IS_WASM, reason="memmap doesn't work correctly")
+@pytest.mark.slow
+def test_memmap_roundtrip(tmpdir):
+    for i, arr in enumerate(basic_arrays + record_arrays):
+        if arr.dtype.hasobject:
+            # Skip these since they can't be mmap'ed.
+            continue
+        # Write it out normally and through mmap.
+        nfn = os.path.join(tmpdir, f'normal{i}.npy')
+        mfn = os.path.join(tmpdir, f'memmap{i}.npy')
+        with open(nfn, 'wb') as fp:
+            format.write_array(fp, arr)
+
+        fortran_order = (
+            arr.flags.f_contiguous and not arr.flags.c_contiguous)
+        ma = format.open_memmap(mfn, mode='w+', dtype=arr.dtype,
+                                shape=arr.shape, fortran_order=fortran_order)
+        ma[...] = arr
+        ma.flush()
+
+        # Check that both of these files' contents are the same.
+        with open(nfn, 'rb') as fp:
+            normal_bytes = fp.read()
+        with open(mfn, 'rb') as fp:
+            memmap_bytes = fp.read()
+        assert_equal_(normal_bytes, memmap_bytes)
+
+        # Check that reading the file using memmap works.
+        ma = format.open_memmap(nfn, mode='r')
+        ma.flush()
+
+
+def test_compressed_roundtrip(tmpdir):
+    arr = np.random.rand(200, 200)
+    npz_file = os.path.join(tmpdir, 'compressed.npz')
+    np.savez_compressed(npz_file, arr=arr)
+    with np.load(npz_file) as npz:
+        arr1 = npz['arr']
+    assert_array_equal(arr, arr1)
+
+
+# aligned
+dt1 = np.dtype('i1, i4, i1', align=True)
+# non-aligned, explicit offsets
+dt2 = np.dtype({'names': ['a', 'b'], 'formats': ['i4', 'i4'],
+                'offsets': [1, 6]})
+# nested struct-in-struct
+dt3 = np.dtype({'names': ['c', 'd'], 'formats': ['i4', dt2]})
+# field with '' name
+dt4 = np.dtype({'names': ['a', '', 'b'], 'formats': ['i4'] * 3})
+# titles
+dt5 = np.dtype({'names': ['a', 'b'], 'formats': ['i4', 'i4'],
+                'offsets': [1, 6], 'titles': ['aa', 'bb']})
+# empty
+dt6 = np.dtype({'names': [], 'formats': [], 'itemsize': 8})
+
+@pytest.mark.parametrize("dt", [dt1, dt2, dt3, dt4, dt5, dt6])
+def test_load_padded_dtype(tmpdir, dt):
+    arr = np.zeros(3, dt)
+    for i in range(3):
+        arr[i] = i + 5
+    npz_file = os.path.join(tmpdir, 'aligned.npz')
+    np.savez(npz_file, arr=arr)
+    with np.load(npz_file) as npz:
+        arr1 = npz['arr']
+    assert_array_equal(arr, arr1)
+
+
+@pytest.mark.skipif(sys.version_info >= (3, 12), reason="see gh-23988")
+@pytest.mark.xfail(IS_WASM, reason="Emscripten NODEFS has a buggy dup")
+def test_python2_python3_interoperability():
+    fname = 'win64python2.npy'
+    path = os.path.join(os.path.dirname(__file__), 'data', fname)
+    with pytest.warns(UserWarning, match="Reading.*this warning\\."):
+        data = np.load(path)
+    assert_array_equal(data, np.ones(2))
+
+
+@pytest.mark.filterwarnings(
+    "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning")
+def test_pickle_python2_python3():
+    # Test that loading object arrays saved on Python 2 works both on
+    # Python 2 and Python 3 and vice versa
+    data_dir = os.path.join(os.path.dirname(__file__), 'data')
+
+    expected = np.array([None, range, '\u512a\u826f',
+                         b'\xe4\xb8\x8d\xe8\x89\xaf'],
+                        dtype=object)
+
+    for fname in ['py2-np0-objarr.npy', 'py2-objarr.npy', 'py2-objarr.npz',
+                  'py3-objarr.npy', 'py3-objarr.npz']:
+        path = os.path.join(data_dir, fname)
+
+        for encoding in ['bytes', 'latin1']:
+            data_f = np.load(path, allow_pickle=True, encoding=encoding)
+            if fname.endswith('.npz'):
+                data = data_f['x']
+                data_f.close()
+            else:
+                data = data_f
+
+            if encoding == 'latin1' and fname.startswith('py2'):
+                assert_(isinstance(data[3], str))
+                assert_array_equal(data[:-1], expected[:-1])
+                # mojibake occurs
+                assert_array_equal(data[-1].encode(encoding), expected[-1])
+            else:
+                assert_(isinstance(data[3], bytes))
+                assert_array_equal(data, expected)
+
+        if fname.startswith('py2'):
+            if fname.endswith('.npz'):
+                data = np.load(path, allow_pickle=True)
+                assert_raises(UnicodeError, data.__getitem__, 'x')
+                data.close()
+                data = np.load(path, allow_pickle=True, fix_imports=False,
+                               encoding='latin1')
+                assert_raises(ImportError, data.__getitem__, 'x')
+                data.close()
+            else:
+                assert_raises(UnicodeError, np.load, path,
+                              allow_pickle=True)
+                assert_raises(ImportError, np.load, path,
+                              allow_pickle=True, fix_imports=False,
+                              encoding='latin1')
+
+
+def test_pickle_disallow(tmpdir):
+    data_dir = os.path.join(os.path.dirname(__file__), 'data')
+
+    path = os.path.join(data_dir, 'py2-objarr.npy')
+    assert_raises(ValueError, np.load, path,
+                  allow_pickle=False, encoding='latin1')
+
+    path = os.path.join(data_dir, 'py2-objarr.npz')
+    with np.load(path, allow_pickle=False, encoding='latin1') as f:
+        assert_raises(ValueError, f.__getitem__, 'x')
+
+    path = os.path.join(tmpdir, 'pickle-disabled.npy')
+    assert_raises(ValueError, np.save, path, np.array([None], dtype=object),
+                  allow_pickle=False)
+
+@pytest.mark.parametrize('dt', [
+    # Not testing a subarray only dtype, because it cannot be attached to an array
+    # (and would fail the test as of writing this.)
+    np.dtype([('a', np.int8),
+              ('b', np.int16),
+              ('c', np.int32),
+             ], align=True),
+    np.dtype([('x', np.dtype(({'names': ['a', 'b'],
+                              'formats': ['i1', 'i1'],
+                              'offsets': [0, 4],
+                              'itemsize': 8,
+                             },
+                    (3,))),
+               (4,),
+             )]),
+    np.dtype([('x',
+                   ('<f8', (5,)),
+                   (2,),
+               )]),
+    np.dtype([('x', np.dtype((
+        np.dtype((
+            np.dtype({'names': ['a', 'b'],
+                      'formats': ['i1', 'i1'],
+                      'offsets': [0, 4],
+                      'itemsize': 8}),
+            (3,)
+            )),
+        (4,)
+        )))
+        ]),
+    np.dtype([
+        ('a', np.dtype((
+            np.dtype((
+                np.dtype((
+                    np.dtype([
+                        ('a', int),
+                        ('b', np.dtype({'names': ['a', 'b'],
+                                        'formats': ['i1', 'i1'],
+                                        'offsets': [0, 4],
+                                        'itemsize': 8})),
+                    ]),
+                    (3,),
+                )),
+                (4,),
+            )),
+            (5,),
+        )))
+        ]),
+    ])
+def test_descr_to_dtype(dt):
+    dt1 = format.descr_to_dtype(dt.descr)
+    assert_equal_(dt1, dt)
+    arr1 = np.zeros(3, dt)
+    arr2 = roundtrip(arr1)
+    assert_array_equal(arr1, arr2)
+
+def test_version_2_0():
+    f = BytesIO()
+    # requires more than 2 byte for header
+    dt = [(("%d" % i) * 100, float) for i in range(500)]
+    d = np.ones(1000, dtype=dt)
+
+    format.write_array(f, d, version=(2, 0))
+    with warnings.catch_warnings(record=True) as w:
+        warnings.filterwarnings('always', '', UserWarning)
+        format.write_array(f, d)
+        assert_(w[0].category is UserWarning)
+
+    # check alignment of data portion
+    f.seek(0)
+    header = f.readline()
+    assert_(len(header) % format.ARRAY_ALIGN == 0)
+
+    f.seek(0)
+    n = format.read_array(f, max_header_size=200000)
+    assert_array_equal(d, n)
+
+    # 1.0 requested but data cannot be saved this way
+    assert_raises(ValueError, format.write_array, f, d, (1, 0))
+
+
+@pytest.mark.skipif(IS_WASM, reason="memmap doesn't work correctly")
+def test_version_2_0_memmap(tmpdir):
+    # requires more than 2 byte for header
+    dt = [(("%d" % i) * 100, float) for i in range(500)]
+    d = np.ones(1000, dtype=dt)
+    tf1 = os.path.join(tmpdir, 'version2_01.npy')
+    tf2 = os.path.join(tmpdir, 'version2_02.npy')
+
+    # 1.0 requested but data cannot be saved this way
+    assert_raises(ValueError, format.open_memmap, tf1, mode='w+', dtype=d.dtype,
+                            shape=d.shape, version=(1, 0))
+
+    ma = format.open_memmap(tf1, mode='w+', dtype=d.dtype,
+                            shape=d.shape, version=(2, 0))
+    ma[...] = d
+    ma.flush()
+    ma = format.open_memmap(tf1, mode='r', max_header_size=200000)
+    assert_array_equal(ma, d)
+
+    with warnings.catch_warnings(record=True) as w:
+        warnings.filterwarnings('always', '', UserWarning)
+        ma = format.open_memmap(tf2, mode='w+', dtype=d.dtype,
+                                shape=d.shape, version=None)
+        assert_(w[0].category is UserWarning)
+        ma[...] = d
+        ma.flush()
+
+    ma = format.open_memmap(tf2, mode='r', max_header_size=200000)
+
+    assert_array_equal(ma, d)
+
+@pytest.mark.parametrize("mmap_mode", ["r", None])
+def test_huge_header(tmpdir, mmap_mode):
+    f = os.path.join(tmpdir, 'large_header.npy')
+    arr = np.array(1, dtype="i," * 10000 + "i")
+
+    with pytest.warns(UserWarning, match=".*format 2.0"):
+        np.save(f, arr)
+
+    with pytest.raises(ValueError, match="Header.*large"):
+        np.load(f, mmap_mode=mmap_mode)
+
+    with pytest.raises(ValueError, match="Header.*large"):
+        np.load(f, mmap_mode=mmap_mode, max_header_size=20000)
+
+    res = np.load(f, mmap_mode=mmap_mode, allow_pickle=True)
+    assert_array_equal(res, arr)
+
+    res = np.load(f, mmap_mode=mmap_mode, max_header_size=180000)
+    assert_array_equal(res, arr)
+
+def test_huge_header_npz(tmpdir):
+    f = os.path.join(tmpdir, 'large_header.npz')
+    arr = np.array(1, dtype="i," * 10000 + "i")
+
+    with pytest.warns(UserWarning, match=".*format 2.0"):
+        np.savez(f, arr=arr)
+
+    # Only getting the array from the file actually reads it
+    with pytest.raises(ValueError, match="Header.*large"):
+        np.load(f)["arr"]
+
+    with pytest.raises(ValueError, match="Header.*large"):
+        np.load(f, max_header_size=20000)["arr"]
+
+    res = np.load(f, allow_pickle=True)["arr"]
+    assert_array_equal(res, arr)
+
+    res = np.load(f, max_header_size=180000)["arr"]
+    assert_array_equal(res, arr)
+
+def test_write_version():
+    f = BytesIO()
+    arr = np.arange(1)
+    # These should pass.
+    format.write_array(f, arr, version=(1, 0))
+    format.write_array(f, arr)
+
+    format.write_array(f, arr, version=None)
+    format.write_array(f, arr)
+
+    format.write_array(f, arr, version=(2, 0))
+    format.write_array(f, arr)
+
+    # These should all fail.
+    bad_versions = [
+        (1, 1),
+        (0, 0),
+        (0, 1),
+        (2, 2),
+        (255, 255),
+    ]
+    for version in bad_versions:
+        with assert_raises_regex(ValueError,
+                                 'we only support format version.*'):
+            format.write_array(f, arr, version=version)
+
+
+bad_version_magic = [
+    b'\x93NUMPY\x01\x01',
+    b'\x93NUMPY\x00\x00',
+    b'\x93NUMPY\x00\x01',
+    b'\x93NUMPY\x02\x00',
+    b'\x93NUMPY\x02\x02',
+    b'\x93NUMPY\xff\xff',
+]
+malformed_magic = [
+    b'\x92NUMPY\x01\x00',
+    b'\x00NUMPY\x01\x00',
+    b'\x93numpy\x01\x00',
+    b'\x93MATLB\x01\x00',
+    b'\x93NUMPY\x01',
+    b'\x93NUMPY',
+    b'',
+]
+
+def test_read_magic():
+    s1 = BytesIO()
+    s2 = BytesIO()
+
+    arr = np.ones((3, 6), dtype=float)
+
+    format.write_array(s1, arr, version=(1, 0))
+    format.write_array(s2, arr, version=(2, 0))
+
+    s1.seek(0)
+    s2.seek(0)
+
+    version1 = format.read_magic(s1)
+    version2 = format.read_magic(s2)
+
+    assert_(version1 == (1, 0))
+    assert_(version2 == (2, 0))
+
+    assert_(s1.tell() == format.MAGIC_LEN)
+    assert_(s2.tell() == format.MAGIC_LEN)
+
+def test_read_magic_bad_magic():
+    for magic in malformed_magic:
+        f = BytesIO(magic)
+        assert_raises(ValueError, format.read_array, f)
+
+
+def test_read_version_1_0_bad_magic():
+    for magic in bad_version_magic + malformed_magic:
+        f = BytesIO(magic)
+        assert_raises(ValueError, format.read_array, f)
+
+
+def test_bad_magic_args():
+    assert_raises(ValueError, format.magic, -1, 1)
+    assert_raises(ValueError, format.magic, 256, 1)
+    assert_raises(ValueError, format.magic, 1, -1)
+    assert_raises(ValueError, format.magic, 1, 256)
+
+
+def test_large_header():
+    s = BytesIO()
+    d = {'shape': (), 'fortran_order': False, 'descr': '<i8'}
+    format.write_array_header_1_0(s, d)
+
+    s = BytesIO()
+    d['descr'] = [('x' * 256 * 256, '<i8')]
+    assert_raises(ValueError, format.write_array_header_1_0, s, d)
+
+
+def test_read_array_header_1_0():
+    s = BytesIO()
+
+    arr = np.ones((3, 6), dtype=float)
+    format.write_array(s, arr, version=(1, 0))
+
+    s.seek(format.MAGIC_LEN)
+    shape, fortran, dtype = format.read_array_header_1_0(s)
+
+    assert_(s.tell() % format.ARRAY_ALIGN == 0)
+    assert_((shape, fortran, dtype) == ((3, 6), False, float))
+
+
+def test_read_array_header_2_0():
+    s = BytesIO()
+
+    arr = np.ones((3, 6), dtype=float)
+    format.write_array(s, arr, version=(2, 0))
+
+    s.seek(format.MAGIC_LEN)
+    shape, fortran, dtype = format.read_array_header_2_0(s)
+
+    assert_(s.tell() % format.ARRAY_ALIGN == 0)
+    assert_((shape, fortran, dtype) == ((3, 6), False, float))
+
+
+def test_bad_header():
+    # header of length less than 2 should fail
+    s = BytesIO()
+    assert_raises(ValueError, format.read_array_header_1_0, s)
+    s = BytesIO(b'1')
+    assert_raises(ValueError, format.read_array_header_1_0, s)
+
+    # header shorter than indicated size should fail
+    s = BytesIO(b'\x01\x00')
+    assert_raises(ValueError, format.read_array_header_1_0, s)
+
+    # headers without the exact keys required should fail
+    # d = {"shape": (1, 2),
+    #      "descr": "x"}
+    s = BytesIO(
+        b"\x93NUMPY\x01\x006\x00{'descr': 'x', 'shape': (1, 2), }"
+        b"                    \n"
+    )
+    assert_raises(ValueError, format.read_array_header_1_0, s)
+
+    d = {"shape": (1, 2),
+         "fortran_order": False,
+         "descr": "x",
+         "extrakey": -1}
+    s = BytesIO()
+    format.write_array_header_1_0(s, d)
+    assert_raises(ValueError, format.read_array_header_1_0, s)
+
+
+def test_large_file_support(tmpdir):
+    if (sys.platform == 'win32' or sys.platform == 'cygwin'):
+        pytest.skip("Unknown if Windows has sparse filesystems")
+    # try creating a large sparse file
+    tf_name = os.path.join(tmpdir, 'sparse_file')
+    try:
+        # seek past end would work too, but linux truncate somewhat
+        # increases the chances that we have a sparse filesystem and can
+        # avoid actually writing 5GB
+        import subprocess as sp
+        sp.check_call(["truncate", "-s", "5368709120", tf_name])
+    except Exception:
+        pytest.skip("Could not create 5GB large file")
+    # write a small array to the end
+    with open(tf_name, "wb") as f:
+        f.seek(5368709120)
+        d = np.arange(5)
+        np.save(f, d)
+    # read it back
+    with open(tf_name, "rb") as f:
+        f.seek(5368709120)
+        r = np.load(f)
+    assert_array_equal(r, d)
+
+
+@pytest.mark.skipif(IS_PYPY, reason="flaky on PyPy")
+@pytest.mark.skipif(not IS_64BIT, reason="test requires 64-bit system")
+@pytest.mark.slow
+@requires_memory(free_bytes=2 * 2**30)
+@pytest.mark.thread_unsafe(reason="crashes with low memory")
+def test_large_archive(tmpdir):
+    # Regression test for product of saving arrays with dimensions of array
+    # having a product that doesn't fit in int32.  See gh-7598 for details.
+    shape = (2**30, 2)
+    try:
+        a = np.empty(shape, dtype=np.uint8)
+    except MemoryError:
+        pytest.skip("Could not create large file")
+
+    fname = os.path.join(tmpdir, "large_archive")
+
+    with open(fname, "wb") as f:
+        np.savez(f, arr=a)
+
+    del a
+
+    with open(fname, "rb") as f:
+        new_a = np.load(f)["arr"]
+
+    assert new_a.shape == shape
+
+
+def test_empty_npz(tmpdir):
+    # Test for gh-9989
+    fname = os.path.join(tmpdir, "nothing.npz")
+    np.savez(fname)
+    with np.load(fname) as nps:
+        pass
+
+
+def test_unicode_field_names(tmpdir):
+    # gh-7391
+    arr = np.array([
+        (1, 3),
+        (1, 2),
+        (1, 3),
+        (1, 2)
+    ], dtype=[
+        ('int', int),
+        ('\N{CJK UNIFIED IDEOGRAPH-6574}\N{CJK UNIFIED IDEOGRAPH-5F62}', int)
+    ])
+    fname = os.path.join(tmpdir, "unicode.npy")
+    with open(fname, 'wb') as f:
+        format.write_array(f, arr, version=(3, 0))
+    with open(fname, 'rb') as f:
+        arr2 = format.read_array(f)
+    assert_array_equal(arr, arr2)
+
+    # notifies the user that 3.0 is selected
+    with open(fname, 'wb') as f:
+        with pytest.warns(UserWarning):
+            format.write_array(f, arr, version=None)
+
+def test_header_growth_axis():
+    for is_fortran_array, dtype_space, expected_header_length in [
+        [False, 22, 128], [False, 23, 192], [True, 23, 128], [True, 24, 192]
+    ]:
+        for size in [10**i for i in range(format.GROWTH_AXIS_MAX_DIGITS)]:
+            fp = BytesIO()
+            format.write_array_header_1_0(fp, {
+                'shape': (2, size) if is_fortran_array else (size, 2),
+                'fortran_order': is_fortran_array,
+                'descr': np.dtype([(' ' * dtype_space, int)])
+            })
+
+            assert len(fp.getvalue()) == expected_header_length
+
+@pytest.mark.parametrize('dt', [
+    np.dtype({'names': ['a', 'b'], 'formats':  [float, np.dtype('S3',
+                 metadata={'some': 'stuff'})]}),
+    np.dtype(int, metadata={'some': 'stuff'}),
+    np.dtype([('subarray', (int, (2,)))], metadata={'some': 'stuff'}),
+    # recursive: metadata on the field of a dtype
+    np.dtype({'names': ['a', 'b'], 'formats': [
+        float, np.dtype({'names': ['c'], 'formats': [np.dtype(int, metadata={})]})
+    ]}),
+    ])
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+        reason="PyPy bug in error formatting")
+def test_metadata_dtype(dt):
+    # gh-14142
+    arr = np.ones(10, dtype=dt)
+    buf = BytesIO()
+    with pytest.warns(UserWarning):
+        np.save(buf, arr)
+    buf.seek(0)
+
+    # Loading should work (metadata was stripped):
+    arr2 = np.load(buf)
+    # BUG: assert_array_equal does not check metadata
+    from numpy.lib._utils_impl import drop_metadata
+    assert_array_equal(arr, arr2)
+    assert drop_metadata(arr.dtype) is not arr.dtype
+    assert drop_metadata(arr2.dtype) is arr2.dtype
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_function_base.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_function_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..20e3727bb1ba568daf6de495ead729221fc95864
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_function_base.py
@@ -0,0 +1,4756 @@
+import decimal
+import math
+import operator
+import sys
+import warnings
+from fractions import Fraction
+from functools import partial
+
+import hypothesis
+import hypothesis.strategies as st
+import pytest
+from hypothesis.extra.numpy import arrays
+
+import numpy as np
+import numpy.lib._function_base_impl as nfb
+from numpy import (
+    angle,
+    average,
+    bartlett,
+    blackman,
+    corrcoef,
+    cov,
+    delete,
+    diff,
+    digitize,
+    extract,
+    flipud,
+    gradient,
+    hamming,
+    hanning,
+    i0,
+    insert,
+    interp,
+    kaiser,
+    ma,
+    meshgrid,
+    piecewise,
+    place,
+    rot90,
+    select,
+    setxor1d,
+    sinc,
+    trapezoid,
+    trim_zeros,
+    unique,
+    unwrap,
+    vectorize,
+)
+from numpy._core.numeric import normalize_axis_tuple
+from numpy.exceptions import AxisError
+from numpy.random import rand
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_WASM,
+    NOGIL_BUILD,
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+np_floats = [np.half, np.single, np.double, np.longdouble]
+
+def get_mat(n):
+    data = np.arange(n)
+    data = np.add.outer(data, data)
+    return data
+
+
+def _make_complex(real, imag):
+    """
+    Like real + 1j * imag, but behaves as expected when imag contains non-finite
+    values
+    """
+    ret = np.zeros(np.broadcast(real, imag).shape, np.complex128)
+    ret.real = real
+    ret.imag = imag
+    return ret
+
+
+class TestRot90:
+    def test_basic(self):
+        assert_raises(ValueError, rot90, np.ones(4))
+        assert_raises(ValueError, rot90, np.ones((2, 2, 2)), axes=(0, 1, 2))
+        assert_raises(ValueError, rot90, np.ones((2, 2)), axes=(0, 2))
+        assert_raises(ValueError, rot90, np.ones((2, 2)), axes=(1, 1))
+        assert_raises(ValueError, rot90, np.ones((2, 2, 2)), axes=(-2, 1))
+
+        a = [[0, 1, 2],
+             [3, 4, 5]]
+        b1 = [[2, 5],
+              [1, 4],
+              [0, 3]]
+        b2 = [[5, 4, 3],
+              [2, 1, 0]]
+        b3 = [[3, 0],
+              [4, 1],
+              [5, 2]]
+        b4 = [[0, 1, 2],
+              [3, 4, 5]]
+
+        for k in range(-3, 13, 4):
+            assert_equal(rot90(a, k=k), b1)
+        for k in range(-2, 13, 4):
+            assert_equal(rot90(a, k=k), b2)
+        for k in range(-1, 13, 4):
+            assert_equal(rot90(a, k=k), b3)
+        for k in range(0, 13, 4):
+            assert_equal(rot90(a, k=k), b4)
+
+        assert_equal(rot90(rot90(a, axes=(0, 1)), axes=(1, 0)), a)
+        assert_equal(rot90(a, k=1, axes=(1, 0)), rot90(a, k=-1, axes=(0, 1)))
+
+    def test_axes(self):
+        a = np.ones((50, 40, 3))
+        assert_equal(rot90(a).shape, (40, 50, 3))
+        assert_equal(rot90(a, axes=(0, 2)), rot90(a, axes=(0, -1)))
+        assert_equal(rot90(a, axes=(1, 2)), rot90(a, axes=(-2, -1)))
+
+    def test_rotation_axes(self):
+        a = np.arange(8).reshape((2, 2, 2))
+
+        a_rot90_01 = [[[2, 3],
+                       [6, 7]],
+                      [[0, 1],
+                       [4, 5]]]
+        a_rot90_12 = [[[1, 3],
+                       [0, 2]],
+                      [[5, 7],
+                       [4, 6]]]
+        a_rot90_20 = [[[4, 0],
+                       [6, 2]],
+                      [[5, 1],
+                       [7, 3]]]
+        a_rot90_10 = [[[4, 5],
+                       [0, 1]],
+                      [[6, 7],
+                       [2, 3]]]
+
+        assert_equal(rot90(a, axes=(0, 1)), a_rot90_01)
+        assert_equal(rot90(a, axes=(1, 0)), a_rot90_10)
+        assert_equal(rot90(a, axes=(1, 2)), a_rot90_12)
+
+        for k in range(1, 5):
+            assert_equal(rot90(a, k=k, axes=(2, 0)),
+                         rot90(a_rot90_20, k=k - 1, axes=(2, 0)))
+
+
+class TestFlip:
+
+    def test_axes(self):
+        assert_raises(AxisError, np.flip, np.ones(4), axis=1)
+        assert_raises(AxisError, np.flip, np.ones((4, 4)), axis=2)
+        assert_raises(AxisError, np.flip, np.ones((4, 4)), axis=-3)
+        assert_raises(AxisError, np.flip, np.ones((4, 4)), axis=(0, 3))
+
+    def test_basic_lr(self):
+        a = get_mat(4)
+        b = a[:, ::-1]
+        assert_equal(np.flip(a, 1), b)
+        a = [[0, 1, 2],
+             [3, 4, 5]]
+        b = [[2, 1, 0],
+             [5, 4, 3]]
+        assert_equal(np.flip(a, 1), b)
+
+    def test_basic_ud(self):
+        a = get_mat(4)
+        b = a[::-1, :]
+        assert_equal(np.flip(a, 0), b)
+        a = [[0, 1, 2],
+             [3, 4, 5]]
+        b = [[3, 4, 5],
+             [0, 1, 2]]
+        assert_equal(np.flip(a, 0), b)
+
+    def test_3d_swap_axis0(self):
+        a = np.array([[[0, 1],
+                       [2, 3]],
+                      [[4, 5],
+                       [6, 7]]])
+
+        b = np.array([[[4, 5],
+                       [6, 7]],
+                      [[0, 1],
+                       [2, 3]]])
+
+        assert_equal(np.flip(a, 0), b)
+
+    def test_3d_swap_axis1(self):
+        a = np.array([[[0, 1],
+                       [2, 3]],
+                      [[4, 5],
+                       [6, 7]]])
+
+        b = np.array([[[2, 3],
+                       [0, 1]],
+                      [[6, 7],
+                       [4, 5]]])
+
+        assert_equal(np.flip(a, 1), b)
+
+    def test_3d_swap_axis2(self):
+        a = np.array([[[0, 1],
+                       [2, 3]],
+                      [[4, 5],
+                       [6, 7]]])
+
+        b = np.array([[[1, 0],
+                       [3, 2]],
+                      [[5, 4],
+                       [7, 6]]])
+
+        assert_equal(np.flip(a, 2), b)
+
+    def test_4d(self):
+        a = np.arange(2 * 3 * 4 * 5).reshape(2, 3, 4, 5)
+        for i in range(a.ndim):
+            assert_equal(np.flip(a, i),
+                         np.flipud(a.swapaxes(0, i)).swapaxes(i, 0))
+
+    def test_default_axis(self):
+        a = np.array([[1, 2, 3],
+                      [4, 5, 6]])
+        b = np.array([[6, 5, 4],
+                      [3, 2, 1]])
+        assert_equal(np.flip(a), b)
+
+    def test_multiple_axes(self):
+        a = np.array([[[0, 1],
+                       [2, 3]],
+                      [[4, 5],
+                       [6, 7]]])
+
+        assert_equal(np.flip(a, axis=()), a)
+
+        b = np.array([[[5, 4],
+                       [7, 6]],
+                      [[1, 0],
+                       [3, 2]]])
+
+        assert_equal(np.flip(a, axis=(0, 2)), b)
+
+        c = np.array([[[3, 2],
+                       [1, 0]],
+                      [[7, 6],
+                       [5, 4]]])
+
+        assert_equal(np.flip(a, axis=(1, 2)), c)
+
+
+class TestAny:
+
+    def test_basic(self):
+        y1 = [0, 0, 1, 0]
+        y2 = [0, 0, 0, 0]
+        y3 = [1, 0, 1, 0]
+        assert_(np.any(y1))
+        assert_(np.any(y3))
+        assert_(not np.any(y2))
+
+    def test_nd(self):
+        y1 = [[0, 0, 0], [0, 1, 0], [1, 1, 0]]
+        assert_(np.any(y1))
+        assert_array_equal(np.any(y1, axis=0), [1, 1, 0])
+        assert_array_equal(np.any(y1, axis=1), [0, 1, 1])
+
+
+class TestAll:
+
+    def test_basic(self):
+        y1 = [0, 1, 1, 0]
+        y2 = [0, 0, 0, 0]
+        y3 = [1, 1, 1, 1]
+        assert_(not np.all(y1))
+        assert_(np.all(y3))
+        assert_(not np.all(y2))
+        assert_(np.all(~np.array(y2)))
+
+    def test_nd(self):
+        y1 = [[0, 0, 1], [0, 1, 1], [1, 1, 1]]
+        assert_(not np.all(y1))
+        assert_array_equal(np.all(y1, axis=0), [0, 0, 1])
+        assert_array_equal(np.all(y1, axis=1), [0, 0, 1])
+
+
+@pytest.mark.parametrize("dtype", ["i8", "U10", "object", "datetime64[ms]"])
+def test_any_and_all_result_dtype(dtype):
+    arr = np.ones(3, dtype=dtype)
+    assert np.any(arr).dtype == np.bool
+    assert np.all(arr).dtype == np.bool
+
+
+class TestCopy:
+
+    def test_basic(self):
+        a = np.array([[1, 2], [3, 4]])
+        a_copy = np.copy(a)
+        assert_array_equal(a, a_copy)
+        a_copy[0, 0] = 10
+        assert_equal(a[0, 0], 1)
+        assert_equal(a_copy[0, 0], 10)
+
+    def test_order(self):
+        # It turns out that people rely on np.copy() preserving order by
+        # default; changing this broke scikit-learn:
+        # github.com/scikit-learn/scikit-learn/commit/7842748
+        a = np.array([[1, 2], [3, 4]])
+        assert_(a.flags.c_contiguous)
+        assert_(not a.flags.f_contiguous)
+        a_fort = np.array([[1, 2], [3, 4]], order="F")
+        assert_(not a_fort.flags.c_contiguous)
+        assert_(a_fort.flags.f_contiguous)
+        a_copy = np.copy(a)
+        assert_(a_copy.flags.c_contiguous)
+        assert_(not a_copy.flags.f_contiguous)
+        a_fort_copy = np.copy(a_fort)
+        assert_(not a_fort_copy.flags.c_contiguous)
+        assert_(a_fort_copy.flags.f_contiguous)
+
+    def test_subok(self):
+        mx = ma.ones(5)
+        assert_(not ma.isMaskedArray(np.copy(mx, subok=False)))
+        assert_(ma.isMaskedArray(np.copy(mx, subok=True)))
+        # Default behavior
+        assert_(not ma.isMaskedArray(np.copy(mx)))
+
+
+class TestAverage:
+
+    def test_basic(self):
+        y1 = np.array([1, 2, 3])
+        assert_(average(y1, axis=0) == 2.)
+        y2 = np.array([1., 2., 3.])
+        assert_(average(y2, axis=0) == 2.)
+        y3 = [0., 0., 0.]
+        assert_(average(y3, axis=0) == 0.)
+
+        y4 = np.ones((4, 4))
+        y4[0, 1] = 0
+        y4[1, 0] = 2
+        assert_almost_equal(y4.mean(0), average(y4, 0))
+        assert_almost_equal(y4.mean(1), average(y4, 1))
+
+        y5 = rand(5, 5)
+        assert_almost_equal(y5.mean(0), average(y5, 0))
+        assert_almost_equal(y5.mean(1), average(y5, 1))
+
+    @pytest.mark.parametrize(
+        'x, axis, expected_avg, weights, expected_wavg, expected_wsum',
+        [([1, 2, 3], None, [2.0], [3, 4, 1], [1.75], [8.0]),
+         ([[1, 2, 5], [1, 6, 11]], 0, [[1.0, 4.0, 8.0]],
+          [1, 3], [[1.0, 5.0, 9.5]], [[4, 4, 4]])],
+    )
+    def test_basic_keepdims(self, x, axis, expected_avg,
+                            weights, expected_wavg, expected_wsum):
+        avg = np.average(x, axis=axis, keepdims=True)
+        assert avg.shape == np.shape(expected_avg)
+        assert_array_equal(avg, expected_avg)
+
+        wavg = np.average(x, axis=axis, weights=weights, keepdims=True)
+        assert wavg.shape == np.shape(expected_wavg)
+        assert_array_equal(wavg, expected_wavg)
+
+        wavg, wsum = np.average(x, axis=axis, weights=weights, returned=True,
+                                keepdims=True)
+        assert wavg.shape == np.shape(expected_wavg)
+        assert_array_equal(wavg, expected_wavg)
+        assert wsum.shape == np.shape(expected_wsum)
+        assert_array_equal(wsum, expected_wsum)
+
+    def test_weights(self):
+        y = np.arange(10)
+        w = np.arange(10)
+        actual = average(y, weights=w)
+        desired = (np.arange(10) ** 2).sum() * 1. / np.arange(10).sum()
+        assert_almost_equal(actual, desired)
+
+        y1 = np.array([[1, 2, 3], [4, 5, 6]])
+        w0 = [1, 2]
+        actual = average(y1, weights=w0, axis=0)
+        desired = np.array([3., 4., 5.])
+        assert_almost_equal(actual, desired)
+
+        w1 = [0, 0, 1]
+        actual = average(y1, weights=w1, axis=1)
+        desired = np.array([3., 6.])
+        assert_almost_equal(actual, desired)
+
+        # weights and input have different shapes but no axis is specified
+        with pytest.raises(
+                TypeError,
+                match="Axis must be specified when shapes of a "
+                      "and weights differ"):
+            average(y1, weights=w1)
+
+        # 2D Case
+        w2 = [[0, 0, 1], [0, 0, 2]]
+        desired = np.array([3., 6.])
+        assert_array_equal(average(y1, weights=w2, axis=1), desired)
+        assert_equal(average(y1, weights=w2), 5.)
+
+        y3 = rand(5).astype(np.float32)
+        w3 = rand(5).astype(np.float64)
+
+        assert_(np.average(y3, weights=w3).dtype == np.result_type(y3, w3))
+
+        # test weights with `keepdims=False` and `keepdims=True`
+        x = np.array([2, 3, 4]).reshape(3, 1)
+        w = np.array([4, 5, 6]).reshape(3, 1)
+
+        actual = np.average(x, weights=w, axis=1, keepdims=False)
+        desired = np.array([2., 3., 4.])
+        assert_array_equal(actual, desired)
+
+        actual = np.average(x, weights=w, axis=1, keepdims=True)
+        desired = np.array([[2.], [3.], [4.]])
+        assert_array_equal(actual, desired)
+
+    def test_weight_and_input_dims_different(self):
+        y = np.arange(12).reshape(2, 2, 3)
+        w = np.array([0., 0., 1., .5, .5, 0., 0., .5, .5, 1., 0., 0.])\
+            .reshape(2, 2, 3)
+
+        subw0 = w[:, :, 0]
+        actual = average(y, axis=(0, 1), weights=subw0)
+        desired = np.array([7., 8., 9.])
+        assert_almost_equal(actual, desired)
+
+        subw1 = w[1, :, :]
+        actual = average(y, axis=(1, 2), weights=subw1)
+        desired = np.array([2.25, 8.25])
+        assert_almost_equal(actual, desired)
+
+        subw2 = w[:, 0, :]
+        actual = average(y, axis=(0, 2), weights=subw2)
+        desired = np.array([4.75, 7.75])
+        assert_almost_equal(actual, desired)
+
+        # here the weights have the wrong shape for the specified axes
+        with pytest.raises(
+                ValueError,
+                match="Shape of weights must be consistent with "
+                      "shape of a along specified axis"):
+            average(y, axis=(0, 1, 2), weights=subw0)
+
+        with pytest.raises(
+                ValueError,
+                match="Shape of weights must be consistent with "
+                      "shape of a along specified axis"):
+            average(y, axis=(0, 1), weights=subw1)
+
+        # swapping the axes should be same as transposing weights
+        actual = average(y, axis=(1, 0), weights=subw0)
+        desired = average(y, axis=(0, 1), weights=subw0.T)
+        assert_almost_equal(actual, desired)
+
+        # if average over all axes, should have float output
+        actual = average(y, axis=(0, 1, 2), weights=w)
+        assert_(actual.ndim == 0)
+
+    def test_returned(self):
+        y = np.array([[1, 2, 3], [4, 5, 6]])
+
+        # No weights
+        avg, scl = average(y, returned=True)
+        assert_equal(scl, 6.)
+
+        avg, scl = average(y, 0, returned=True)
+        assert_array_equal(scl, np.array([2., 2., 2.]))
+
+        avg, scl = average(y, 1, returned=True)
+        assert_array_equal(scl, np.array([3., 3.]))
+
+        # With weights
+        w0 = [1, 2]
+        avg, scl = average(y, weights=w0, axis=0, returned=True)
+        assert_array_equal(scl, np.array([3., 3., 3.]))
+
+        w1 = [1, 2, 3]
+        avg, scl = average(y, weights=w1, axis=1, returned=True)
+        assert_array_equal(scl, np.array([6., 6.]))
+
+        w2 = [[0, 0, 1], [1, 2, 3]]
+        avg, scl = average(y, weights=w2, axis=1, returned=True)
+        assert_array_equal(scl, np.array([1., 6.]))
+
+    def test_subclasses(self):
+        class subclass(np.ndarray):
+            pass
+        a = np.array([[1, 2], [3, 4]]).view(subclass)
+        w = np.array([[1, 2], [3, 4]]).view(subclass)
+
+        assert_equal(type(np.average(a)), subclass)
+        assert_equal(type(np.average(a, weights=w)), subclass)
+        # Ensure a possibly returned sum of weights is correct too.
+        ra, rw = np.average(a, weights=w, returned=True)
+        assert_equal(type(ra), subclass)
+        assert_equal(type(rw), subclass)
+        # Even if it needs to be broadcast.
+        ra, rw = np.average(a, weights=w[0], axis=1, returned=True)
+        assert_equal(type(ra), subclass)
+        assert_equal(type(rw), subclass)
+
+    def test_upcasting(self):
+        typs = [('i4', 'i4', 'f8'), ('i4', 'f4', 'f8'), ('f4', 'i4', 'f8'),
+                 ('f4', 'f4', 'f4'), ('f4', 'f8', 'f8')]
+        for at, wt, rt in typs:
+            a = np.array([[1, 2], [3, 4]], dtype=at)
+            w = np.array([[1, 2], [3, 4]], dtype=wt)
+            assert_equal(np.average(a, weights=w).dtype, np.dtype(rt))
+
+    def test_object_dtype(self):
+        a = np.array([decimal.Decimal(x) for x in range(10)])
+        w = np.array([decimal.Decimal(1) for _ in range(10)])
+        w /= w.sum()
+        assert_almost_equal(a.mean(0), average(a, weights=w))
+
+    def test_object_no_weights(self):
+        a = np.array([decimal.Decimal(x) for x in range(10)])
+        m = average(a)
+        assert m == decimal.Decimal('4.5')
+
+    def test_average_class_without_dtype(self):
+        # see gh-21988
+        a = np.array([Fraction(1, 5), Fraction(3, 5)])
+        assert_equal(np.average(a), Fraction(2, 5))
+
+
+class TestSelect:
+    choices = [np.array([1, 2, 3]),
+               np.array([4, 5, 6]),
+               np.array([7, 8, 9])]
+    conditions = [np.array([False, False, False]),
+                  np.array([False, True, False]),
+                  np.array([False, False, True])]
+
+    def _select(self, cond, values, default=0):
+        output = []
+        for m in range(len(cond)):
+            output += [V[m] for V, C in zip(values, cond) if C[m]] or [default]
+        return output
+
+    def test_basic(self):
+        choices = self.choices
+        conditions = self.conditions
+        assert_array_equal(select(conditions, choices, default=15),
+                           self._select(conditions, choices, default=15))
+
+        assert_equal(len(choices), 3)
+        assert_equal(len(conditions), 3)
+
+    def test_broadcasting(self):
+        conditions = [np.array(True), np.array([False, True, False])]
+        choices = [1, np.arange(12).reshape(4, 3)]
+        assert_array_equal(select(conditions, choices), np.ones((4, 3)))
+        # default can broadcast too:
+        assert_equal(select([True], [0], default=[0]).shape, (1,))
+
+    def test_return_dtype(self):
+        assert_equal(select(self.conditions, self.choices, 1j).dtype,
+                     np.complex128)
+        # But the conditions need to be stronger then the scalar default
+        # if it is scalar.
+        choices = [choice.astype(np.int8) for choice in self.choices]
+        assert_equal(select(self.conditions, choices).dtype, np.int8)
+
+        d = np.array([1, 2, 3, np.nan, 5, 7])
+        m = np.isnan(d)
+        assert_equal(select([m], [d]), [0, 0, 0, np.nan, 0, 0])
+
+    def test_non_bool_deprecation(self):
+        choices = self.choices
+        conditions = self.conditions[:]
+        conditions[0] = conditions[0].astype(np.int_)
+        assert_raises(TypeError, select, conditions, choices)
+        conditions[0] = conditions[0].astype(np.uint8)
+        assert_raises(TypeError, select, conditions, choices)
+        assert_raises(TypeError, select, conditions, choices)
+
+    def test_many_arguments(self):
+        # This used to be limited by NPY_MAXARGS == 32
+        conditions = [np.array([False])] * 100
+        choices = [np.array([1])] * 100
+        select(conditions, choices)
+
+
+class TestInsert:
+
+    def test_basic(self):
+        a = [1, 2, 3]
+        assert_equal(insert(a, 0, 1), [1, 1, 2, 3])
+        assert_equal(insert(a, 3, 1), [1, 2, 3, 1])
+        assert_equal(insert(a, [1, 1, 1], [1, 2, 3]), [1, 1, 2, 3, 2, 3])
+        assert_equal(insert(a, 1, [1, 2, 3]), [1, 1, 2, 3, 2, 3])
+        assert_equal(insert(a, [1, -1, 3], 9), [1, 9, 2, 9, 3, 9])
+        assert_equal(insert(a, slice(-1, None, -1), 9), [9, 1, 9, 2, 9, 3])
+        assert_equal(insert(a, [-1, 1, 3], [7, 8, 9]), [1, 8, 2, 7, 3, 9])
+        b = np.array([0, 1], dtype=np.float64)
+        assert_equal(insert(b, 0, b[0]), [0., 0., 1.])
+        assert_equal(insert(b, [], []), b)
+        assert_equal(insert(a, np.array([True] * 4), 9), [9, 1, 9, 2, 9, 3, 9])
+        assert_equal(insert(a, np.array([True, False, True, False]), 9),
+                     [9, 1, 2, 9, 3])
+
+    def test_multidim(self):
+        a = [[1, 1, 1]]
+        r = [[2, 2, 2],
+             [1, 1, 1]]
+        assert_equal(insert(a, 0, [1]), [1, 1, 1, 1])
+        assert_equal(insert(a, 0, [2, 2, 2], axis=0), r)
+        assert_equal(insert(a, 0, 2, axis=0), r)
+        assert_equal(insert(a, 2, 2, axis=1), [[1, 1, 2, 1]])
+
+        a = np.array([[1, 1], [2, 2], [3, 3]])
+        b = np.arange(1, 4).repeat(3).reshape(3, 3)
+        c = np.concatenate(
+            (a[:, 0:1], np.arange(1, 4).repeat(3).reshape(3, 3).T,
+             a[:, 1:2]), axis=1)
+        assert_equal(insert(a, [1], [[1], [2], [3]], axis=1), b)
+        assert_equal(insert(a, [1], [1, 2, 3], axis=1), c)
+        # scalars behave differently, in this case exactly opposite:
+        assert_equal(insert(a, 1, [1, 2, 3], axis=1), b)
+        assert_equal(insert(a, 1, [[1], [2], [3]], axis=1), c)
+
+        a = np.arange(4).reshape(2, 2)
+        assert_equal(insert(a[:, :1], 1, a[:, 1], axis=1), a)
+        assert_equal(insert(a[:1, :], 1, a[1, :], axis=0), a)
+
+        # negative axis value
+        a = np.arange(24).reshape((2, 3, 4))
+        assert_equal(insert(a, 1, a[:, :, 3], axis=-1),
+                     insert(a, 1, a[:, :, 3], axis=2))
+        assert_equal(insert(a, 1, a[:, 2, :], axis=-2),
+                     insert(a, 1, a[:, 2, :], axis=1))
+
+        # invalid axis value
+        assert_raises(AxisError, insert, a, 1, a[:, 2, :], axis=3)
+        assert_raises(AxisError, insert, a, 1, a[:, 2, :], axis=-4)
+
+        # negative axis value
+        a = np.arange(24).reshape((2, 3, 4))
+        assert_equal(insert(a, 1, a[:, :, 3], axis=-1),
+                     insert(a, 1, a[:, :, 3], axis=2))
+        assert_equal(insert(a, 1, a[:, 2, :], axis=-2),
+                     insert(a, 1, a[:, 2, :], axis=1))
+
+    def test_0d(self):
+        a = np.array(1)
+        with pytest.raises(AxisError):
+            insert(a, [], 2, axis=0)
+        with pytest.raises(TypeError):
+            insert(a, [], 2, axis="nonsense")
+
+    def test_subclass(self):
+        class SubClass(np.ndarray):
+            pass
+        a = np.arange(10).view(SubClass)
+        assert_(isinstance(np.insert(a, 0, [0]), SubClass))
+        assert_(isinstance(np.insert(a, [], []), SubClass))
+        assert_(isinstance(np.insert(a, [0, 1], [1, 2]), SubClass))
+        assert_(isinstance(np.insert(a, slice(1, 2), [1, 2]), SubClass))
+        assert_(isinstance(np.insert(a, slice(1, -2, -1), []), SubClass))
+        # This is an error in the future:
+        a = np.array(1).view(SubClass)
+        assert_(isinstance(np.insert(a, 0, [0]), SubClass))
+
+    def test_index_array_copied(self):
+        x = np.array([1, 1, 1])
+        np.insert([0, 1, 2], x, [3, 4, 5])
+        assert_equal(x, np.array([1, 1, 1]))
+
+    def test_structured_array(self):
+        a = np.array([(1, 'a'), (2, 'b'), (3, 'c')],
+                     dtype=[('foo', 'i'), ('bar', 'S1')])
+        val = (4, 'd')
+        b = np.insert(a, 0, val)
+        assert_array_equal(b[0], np.array(val, dtype=b.dtype))
+        val = [(4, 'd')] * 2
+        b = np.insert(a, [0, 2], val)
+        assert_array_equal(b[[0, 3]], np.array(val, dtype=b.dtype))
+
+    def test_index_floats(self):
+        with pytest.raises(IndexError):
+            np.insert([0, 1, 2], np.array([1.0, 2.0]), [10, 20])
+        with pytest.raises(IndexError):
+            np.insert([0, 1, 2], np.array([], dtype=float), [])
+
+    @pytest.mark.parametrize('idx', [4, -4])
+    def test_index_out_of_bounds(self, idx):
+        with pytest.raises(IndexError, match='out of bounds'):
+            np.insert([0, 1, 2], [idx], [3, 4])
+
+
+class TestAmax:
+
+    def test_basic(self):
+        a = [3, 4, 5, 10, -3, -5, 6.0]
+        assert_equal(np.amax(a), 10.0)
+        b = [[3, 6.0, 9.0],
+             [4, 10.0, 5.0],
+             [8, 3.0, 2.0]]
+        assert_equal(np.amax(b, axis=0), [8.0, 10.0, 9.0])
+        assert_equal(np.amax(b, axis=1), [9.0, 10.0, 8.0])
+
+
+class TestAmin:
+
+    def test_basic(self):
+        a = [3, 4, 5, 10, -3, -5, 6.0]
+        assert_equal(np.amin(a), -5.0)
+        b = [[3, 6.0, 9.0],
+             [4, 10.0, 5.0],
+             [8, 3.0, 2.0]]
+        assert_equal(np.amin(b, axis=0), [3.0, 3.0, 2.0])
+        assert_equal(np.amin(b, axis=1), [3.0, 4.0, 2.0])
+
+
+class TestPtp:
+
+    def test_basic(self):
+        a = np.array([3, 4, 5, 10, -3, -5, 6.0])
+        assert_equal(np.ptp(a, axis=0), 15.0)
+        b = np.array([[3, 6.0, 9.0],
+                      [4, 10.0, 5.0],
+                      [8, 3.0, 2.0]])
+        assert_equal(np.ptp(b, axis=0), [5.0, 7.0, 7.0])
+        assert_equal(np.ptp(b, axis=-1), [6.0, 6.0, 6.0])
+
+        assert_equal(np.ptp(b, axis=0, keepdims=True), [[5.0, 7.0, 7.0]])
+        assert_equal(np.ptp(b, axis=(0, 1), keepdims=True), [[8.0]])
+
+
+class TestCumsum:
+
+    @pytest.mark.parametrize("cumsum", [np.cumsum, np.cumulative_sum])
+    def test_basic(self, cumsum):
+        ba = [1, 2, 10, 11, 6, 5, 4]
+        ba2 = [[1, 2, 3, 4], [5, 6, 7, 9], [10, 3, 4, 5]]
+        for ctype in [np.int8, np.uint8, np.int16, np.uint16, np.int32,
+                      np.uint32, np.float32, np.float64, np.complex64,
+                      np.complex128]:
+            a = np.array(ba, ctype)
+            a2 = np.array(ba2, ctype)
+
+            tgt = np.array([1, 3, 13, 24, 30, 35, 39], ctype)
+            assert_array_equal(cumsum(a, axis=0), tgt)
+
+            tgt = np.array(
+                [[1, 2, 3, 4], [6, 8, 10, 13], [16, 11, 14, 18]], ctype)
+            assert_array_equal(cumsum(a2, axis=0), tgt)
+
+            tgt = np.array(
+                [[1, 3, 6, 10], [5, 11, 18, 27], [10, 13, 17, 22]], ctype)
+            assert_array_equal(cumsum(a2, axis=1), tgt)
+
+
+class TestProd:
+
+    def test_basic(self):
+        ba = [1, 2, 10, 11, 6, 5, 4]
+        ba2 = [[1, 2, 3, 4], [5, 6, 7, 9], [10, 3, 4, 5]]
+        for ctype in [np.int16, np.uint16, np.int32, np.uint32,
+                      np.float32, np.float64, np.complex64, np.complex128]:
+            a = np.array(ba, ctype)
+            a2 = np.array(ba2, ctype)
+            if ctype in ['1', 'b']:
+                assert_raises(ArithmeticError, np.prod, a)
+                assert_raises(ArithmeticError, np.prod, a2, 1)
+            else:
+                assert_equal(a.prod(axis=0), 26400)
+                assert_array_equal(a2.prod(axis=0),
+                                   np.array([50, 36, 84, 180], ctype))
+                assert_array_equal(a2.prod(axis=-1),
+                                   np.array([24, 1890, 600], ctype))
+
+
+class TestCumprod:
+
+    @pytest.mark.parametrize("cumprod", [np.cumprod, np.cumulative_prod])
+    def test_basic(self, cumprod):
+        ba = [1, 2, 10, 11, 6, 5, 4]
+        ba2 = [[1, 2, 3, 4], [5, 6, 7, 9], [10, 3, 4, 5]]
+        for ctype in [np.int16, np.uint16, np.int32, np.uint32,
+                      np.float32, np.float64, np.complex64, np.complex128]:
+            a = np.array(ba, ctype)
+            a2 = np.array(ba2, ctype)
+            if ctype in ['1', 'b']:
+                assert_raises(ArithmeticError, cumprod, a)
+                assert_raises(ArithmeticError, cumprod, a2, 1)
+                assert_raises(ArithmeticError, cumprod, a)
+            else:
+                assert_array_equal(cumprod(a, axis=-1),
+                                   np.array([1, 2, 20, 220,
+                                             1320, 6600, 26400], ctype))
+                assert_array_equal(cumprod(a2, axis=0),
+                                   np.array([[1, 2, 3, 4],
+                                             [5, 12, 21, 36],
+                                             [50, 36, 84, 180]], ctype))
+                assert_array_equal(cumprod(a2, axis=-1),
+                                   np.array([[1, 2, 6, 24],
+                                             [5, 30, 210, 1890],
+                                             [10, 30, 120, 600]], ctype))
+
+
+def test_cumulative_include_initial():
+    arr = np.arange(8).reshape((2, 2, 2))
+
+    expected = np.array([
+        [[0, 0], [0, 1], [2, 4]], [[0, 0], [4, 5], [10, 12]]
+    ])
+    assert_array_equal(
+        np.cumulative_sum(arr, axis=1, include_initial=True), expected
+    )
+
+    expected = np.array([
+        [[1, 0, 0], [1, 2, 6]], [[1, 4, 20], [1, 6, 42]]
+    ])
+    assert_array_equal(
+        np.cumulative_prod(arr, axis=2, include_initial=True), expected
+    )
+
+    out = np.zeros((3, 2), dtype=np.float64)
+    expected = np.array([[0, 0], [1, 2], [4, 6]], dtype=np.float64)
+    arr = np.arange(1, 5).reshape((2, 2))
+    np.cumulative_sum(arr, axis=0, out=out, include_initial=True)
+    assert_array_equal(out, expected)
+
+    expected = np.array([1, 2, 4])
+    assert_array_equal(
+        np.cumulative_prod(np.array([2, 2]), include_initial=True), expected
+    )
+
+
+class TestDiff:
+
+    def test_basic(self):
+        x = [1, 4, 6, 7, 12]
+        out = np.array([3, 2, 1, 5])
+        out2 = np.array([-1, -1, 4])
+        out3 = np.array([0, 5])
+        assert_array_equal(diff(x), out)
+        assert_array_equal(diff(x, n=2), out2)
+        assert_array_equal(diff(x, n=3), out3)
+
+        x = [1.1, 2.2, 3.0, -0.2, -0.1]
+        out = np.array([1.1, 0.8, -3.2, 0.1])
+        assert_almost_equal(diff(x), out)
+
+        x = [True, True, False, False]
+        out = np.array([False, True, False])
+        out2 = np.array([True, True])
+        assert_array_equal(diff(x), out)
+        assert_array_equal(diff(x, n=2), out2)
+
+    def test_axis(self):
+        x = np.zeros((10, 20, 30))
+        x[:, 1::2, :] = 1
+        exp = np.ones((10, 19, 30))
+        exp[:, 1::2, :] = -1
+        assert_array_equal(diff(x), np.zeros((10, 20, 29)))
+        assert_array_equal(diff(x, axis=-1), np.zeros((10, 20, 29)))
+        assert_array_equal(diff(x, axis=0), np.zeros((9, 20, 30)))
+        assert_array_equal(diff(x, axis=1), exp)
+        assert_array_equal(diff(x, axis=-2), exp)
+        assert_raises(AxisError, diff, x, axis=3)
+        assert_raises(AxisError, diff, x, axis=-4)
+
+        x = np.array(1.11111111111, np.float64)
+        assert_raises(ValueError, diff, x)
+
+    def test_nd(self):
+        x = 20 * rand(10, 20, 30)
+        out1 = x[:, :, 1:] - x[:, :, :-1]
+        out2 = out1[:, :, 1:] - out1[:, :, :-1]
+        out3 = x[1:, :, :] - x[:-1, :, :]
+        out4 = out3[1:, :, :] - out3[:-1, :, :]
+        assert_array_equal(diff(x), out1)
+        assert_array_equal(diff(x, n=2), out2)
+        assert_array_equal(diff(x, axis=0), out3)
+        assert_array_equal(diff(x, n=2, axis=0), out4)
+
+    def test_n(self):
+        x = list(range(3))
+        assert_raises(ValueError, diff, x, n=-1)
+        output = [diff(x, n=n) for n in range(1, 5)]
+        expected = [[1, 1], [0], [], []]
+        assert_(diff(x, n=0) is x)
+        for n, (expected_n, output_n) in enumerate(zip(expected, output), start=1):
+            assert_(type(output_n) is np.ndarray)
+            assert_array_equal(output_n, expected_n)
+            assert_equal(output_n.dtype, np.int_)
+            assert_equal(len(output_n), max(0, len(x) - n))
+
+    def test_times(self):
+        x = np.arange('1066-10-13', '1066-10-16', dtype=np.datetime64)
+        expected = [
+            np.array([1, 1], dtype='timedelta64[D]'),
+            np.array([0], dtype='timedelta64[D]'),
+        ]
+        expected.extend([np.array([], dtype='timedelta64[D]')] * 3)
+        for n, exp in enumerate(expected, start=1):
+            out = diff(x, n=n)
+            assert_array_equal(out, exp)
+            assert_equal(out.dtype, exp.dtype)
+
+    def test_subclass(self):
+        x = ma.array([[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]],
+                     mask=[[False, False], [True, False],
+                           [False, True], [True, True], [False, False]])
+        out = diff(x)
+        assert_array_equal(out.data, [[1], [1], [1], [1], [1]])
+        assert_array_equal(out.mask, [[False], [True],
+                                      [True], [True], [False]])
+        assert_(type(out) is type(x))
+
+        out3 = diff(x, n=3)
+        assert_array_equal(out3.data, [[], [], [], [], []])
+        assert_array_equal(out3.mask, [[], [], [], [], []])
+        assert_(type(out3) is type(x))
+
+    def test_prepend(self):
+        x = np.arange(5) + 1
+        assert_array_equal(diff(x, prepend=0), np.ones(5))
+        assert_array_equal(diff(x, prepend=[0]), np.ones(5))
+        assert_array_equal(np.cumsum(np.diff(x, prepend=0)), x)
+        assert_array_equal(diff(x, prepend=[-1, 0]), np.ones(6))
+
+        x = np.arange(4).reshape(2, 2)
+        result = np.diff(x, axis=1, prepend=0)
+        expected = [[0, 1], [2, 1]]
+        assert_array_equal(result, expected)
+        result = np.diff(x, axis=1, prepend=[[0], [0]])
+        assert_array_equal(result, expected)
+
+        result = np.diff(x, axis=0, prepend=0)
+        expected = [[0, 1], [2, 2]]
+        assert_array_equal(result, expected)
+        result = np.diff(x, axis=0, prepend=[[0, 0]])
+        assert_array_equal(result, expected)
+
+        assert_raises(ValueError, np.diff, x, prepend=np.zeros((3, 3)))
+
+        assert_raises(AxisError, diff, x, prepend=0, axis=3)
+
+    def test_append(self):
+        x = np.arange(5)
+        result = diff(x, append=0)
+        expected = [1, 1, 1, 1, -4]
+        assert_array_equal(result, expected)
+        result = diff(x, append=[0])
+        assert_array_equal(result, expected)
+        result = diff(x, append=[0, 2])
+        expected = expected + [2]
+        assert_array_equal(result, expected)
+
+        x = np.arange(4).reshape(2, 2)
+        result = np.diff(x, axis=1, append=0)
+        expected = [[1, -1], [1, -3]]
+        assert_array_equal(result, expected)
+        result = np.diff(x, axis=1, append=[[0], [0]])
+        assert_array_equal(result, expected)
+
+        result = np.diff(x, axis=0, append=0)
+        expected = [[2, 2], [-2, -3]]
+        assert_array_equal(result, expected)
+        result = np.diff(x, axis=0, append=[[0, 0]])
+        assert_array_equal(result, expected)
+
+        assert_raises(ValueError, np.diff, x, append=np.zeros((3, 3)))
+
+        assert_raises(AxisError, diff, x, append=0, axis=3)
+
+
+class TestDelete:
+
+    def _create_arrays(self):
+        a = np.arange(5)
+        nd_a = np.arange(5).repeat(2).reshape(1, 5, 2)
+        return a, nd_a
+
+    def _check_inverse_of_slicing(self, indices):
+        a, nd_a = self._create_arrays()
+        a_del = delete(a, indices)
+        nd_a_del = delete(nd_a, indices, axis=1)
+        msg = f'Delete failed for obj: {indices!r}'
+        assert_array_equal(setxor1d(a_del, a[indices, ]), a,
+                           err_msg=msg)
+        xor = setxor1d(nd_a_del[0, :, 0], nd_a[0, indices, 0])
+        assert_array_equal(xor, nd_a[0, :, 0], err_msg=msg)
+
+    def test_slices(self):
+        lims = [-6, -2, 0, 1, 2, 4, 5]
+        steps = [-3, -1, 1, 3]
+        for start in lims:
+            for stop in lims:
+                for step in steps:
+                    s = slice(start, stop, step)
+                    self._check_inverse_of_slicing(s)
+
+    def test_fancy(self):
+        a, _ = self._create_arrays()
+        self._check_inverse_of_slicing(np.array([[0, 1], [2, 1]]))
+        with pytest.raises(IndexError):
+            delete(a, [100])
+        with pytest.raises(IndexError):
+            delete(a, [-100])
+
+        self._check_inverse_of_slicing([0, -1, 2, 2])
+
+        self._check_inverse_of_slicing([True, False, False, True, False])
+
+        # not legal, indexing with these would change the dimension
+        with pytest.raises(ValueError):
+            delete(a, True)
+        with pytest.raises(ValueError):
+            delete(a, False)
+
+        # not enough items
+        with pytest.raises(ValueError):
+            delete(a, [False] * 4)
+
+    def test_single(self):
+        self._check_inverse_of_slicing(0)
+        self._check_inverse_of_slicing(-4)
+
+    def test_0d(self):
+        a = np.array(1)
+        with pytest.raises(AxisError):
+            delete(a, [], axis=0)
+        with pytest.raises(TypeError):
+            delete(a, [], axis="nonsense")
+
+    def test_subclass(self):
+        class SubClass(np.ndarray):
+            pass
+
+        a_orig, _ = self._create_arrays()
+        a = a_orig.view(SubClass)
+        assert_(isinstance(delete(a, 0), SubClass))
+        assert_(isinstance(delete(a, []), SubClass))
+        assert_(isinstance(delete(a, [0, 1]), SubClass))
+        assert_(isinstance(delete(a, slice(1, 2)), SubClass))
+        assert_(isinstance(delete(a, slice(1, -2)), SubClass))
+
+    def test_array_order_preserve(self):
+        # See gh-7113
+        k = np.arange(10).reshape(2, 5, order='F')
+        m = delete(k, slice(60, None), axis=1)
+
+        # 'k' is Fortran ordered, and 'm' should have the
+        # same ordering as 'k' and NOT become C ordered
+        assert_equal(m.flags.c_contiguous, k.flags.c_contiguous)
+        assert_equal(m.flags.f_contiguous, k.flags.f_contiguous)
+
+    def test_index_floats(self):
+        with pytest.raises(IndexError):
+            np.delete([0, 1, 2], np.array([1.0, 2.0]))
+        with pytest.raises(IndexError):
+            np.delete([0, 1, 2], np.array([], dtype=float))
+
+    @pytest.mark.parametrize("indexer", [np.array([1]), [1]])
+    def test_single_item_array(self, indexer):
+        a, nd_a = self._create_arrays()
+        a_del_int = delete(a, 1)
+        a_del = delete(a, indexer)
+        assert_equal(a_del_int, a_del)
+
+        nd_a_del_int = delete(nd_a, 1, axis=1)
+        nd_a_del = delete(nd_a, np.array([1]), axis=1)
+        assert_equal(nd_a_del_int, nd_a_del)
+
+    def test_single_item_array_non_int(self):
+        # Special handling for integer arrays must not affect non-integer ones.
+        # If `False` was cast to `0` it would delete the element:
+        res = delete(np.ones(1), np.array([False]))
+        assert_array_equal(res, np.ones(1))
+
+        # Test the more complicated (with axis) case from gh-21840
+        x = np.ones((3, 1))
+        false_mask = np.array([False], dtype=bool)
+        true_mask = np.array([True], dtype=bool)
+
+        res = delete(x, false_mask, axis=-1)
+        assert_array_equal(res, x)
+        res = delete(x, true_mask, axis=-1)
+        assert_array_equal(res, x[:, :0])
+
+        # Object or e.g. timedeltas should *not* be allowed
+        with pytest.raises(IndexError):
+            delete(np.ones(2), np.array([0], dtype=object))
+
+        with pytest.raises(IndexError):
+            # timedeltas are sometimes "integral, but clearly not allowed:
+            delete(np.ones(2), np.array([0], dtype="m8[ns]"))
+
+
+class TestGradient:
+
+    def test_basic(self):
+        v = [[1, 1], [3, 4]]
+        x = np.array(v)
+        dx = [np.array([[2., 3.], [2., 3.]]),
+              np.array([[0., 0.], [1., 1.]])]
+        assert_array_equal(gradient(x), dx)
+        assert_array_equal(gradient(v), dx)
+
+    def test_args(self):
+        dx = np.cumsum(np.ones(5))
+        dx_uneven = [1., 2., 5., 9., 11.]
+        f_2d = np.arange(25).reshape(5, 5)
+
+        # distances must be scalars or have size equal to gradient[axis]
+        gradient(np.arange(5), 3.)
+        gradient(np.arange(5), np.array(3.))
+        gradient(np.arange(5), dx)
+        # dy is set equal to dx because scalar
+        gradient(f_2d, 1.5)
+        gradient(f_2d, np.array(1.5))
+
+        gradient(f_2d, dx_uneven, dx_uneven)
+        # mix between even and uneven spaces and
+        # mix between scalar and vector
+        gradient(f_2d, dx, 2)
+
+        # 2D but axis specified
+        gradient(f_2d, dx, axis=1)
+
+        # 2d coordinate arguments are not yet allowed
+        assert_raises_regex(ValueError, '.*scalars or 1d',
+            gradient, f_2d, np.stack([dx] * 2, axis=-1), 1)
+
+    def test_badargs(self):
+        f_2d = np.arange(25).reshape(5, 5)
+        x = np.cumsum(np.ones(5))
+
+        # wrong sizes
+        assert_raises(ValueError, gradient, f_2d, x, np.ones(2))
+        assert_raises(ValueError, gradient, f_2d, 1, np.ones(2))
+        assert_raises(ValueError, gradient, f_2d, np.ones(2), np.ones(2))
+        # wrong number of arguments
+        assert_raises(TypeError, gradient, f_2d, x)
+        assert_raises(TypeError, gradient, f_2d, x, axis=(0, 1))
+        assert_raises(TypeError, gradient, f_2d, x, x, x)
+        assert_raises(TypeError, gradient, f_2d, 1, 1, 1)
+        assert_raises(TypeError, gradient, f_2d, x, x, axis=1)
+        assert_raises(TypeError, gradient, f_2d, 1, 1, axis=1)
+
+    def test_datetime64(self):
+        # Make sure gradient() can handle special types like datetime64
+        x = np.array(
+            ['1910-08-16', '1910-08-11', '1910-08-10', '1910-08-12',
+             '1910-10-12', '1910-12-12', '1912-12-12'],
+            dtype='datetime64[D]')
+        dx = np.array(
+            [-5, -3, 0, 31, 61, 396, 731],
+            dtype='timedelta64[D]')
+        assert_array_equal(gradient(x), dx)
+        assert_(dx.dtype == np.dtype('timedelta64[D]'))
+
+    def test_masked(self):
+        # Make sure that gradient supports subclasses like masked arrays
+        x = np.ma.array([[1, 1], [3, 4]],
+                        mask=[[False, False], [False, False]])
+        out = gradient(x)[0]
+        assert_equal(type(out), type(x))
+        # And make sure that the output and input don't have aliased mask
+        # arrays
+        assert_(x._mask is not out._mask)
+        # Also check that edge_order=2 doesn't alter the original mask
+        x2 = np.ma.arange(5)
+        x2[2] = np.ma.masked
+        np.gradient(x2, edge_order=2)
+        assert_array_equal(x2.mask, [False, False, True, False, False])
+
+    def test_second_order_accurate(self):
+        # Testing that the relative numerical error is less that 3% for
+        # this example problem. This corresponds to second order
+        # accurate finite differences for all interior and boundary
+        # points.
+        x = np.linspace(0, 1, 10)
+        dx = x[1] - x[0]
+        y = 2 * x ** 3 + 4 * x ** 2 + 2 * x
+        analytical = 6 * x ** 2 + 8 * x + 2
+        num_error = np.abs((np.gradient(y, dx, edge_order=2) / analytical) - 1)
+        assert_(np.all(num_error < 0.03) == True)
+
+        # test with unevenly spaced
+        rng = np.random.default_rng(0)
+        x = np.sort(rng.random(10))
+        y = 2 * x ** 3 + 4 * x ** 2 + 2 * x
+        analytical = 6 * x ** 2 + 8 * x + 2
+        num_error = np.abs((np.gradient(y, x, edge_order=2) / analytical) - 1)
+        assert_(np.all(num_error < 0.03) == True)
+
+    def test_spacing(self):
+        f = np.array([0, 2., 3., 4., 5., 5.])
+        f = np.tile(f, (6, 1)) + f.reshape(-1, 1)
+        x_uneven = np.array([0., 0.5, 1., 3., 5., 7.])
+        x_even = np.arange(6.)
+
+        fdx_even_ord1 = np.tile([2., 1.5, 1., 1., 0.5, 0.], (6, 1))
+        fdx_even_ord2 = np.tile([2.5, 1.5, 1., 1., 0.5, -0.5], (6, 1))
+        fdx_uneven_ord1 = np.tile([4., 3., 1.7, 0.5, 0.25, 0.], (6, 1))
+        fdx_uneven_ord2 = np.tile([5., 3., 1.7, 0.5, 0.25, -0.25], (6, 1))
+
+        # evenly spaced
+        for edge_order, exp_res in [(1, fdx_even_ord1), (2, fdx_even_ord2)]:
+            res1 = gradient(f, 1., axis=(0, 1), edge_order=edge_order)
+            res2 = gradient(f, x_even, x_even,
+                            axis=(0, 1), edge_order=edge_order)
+            res3 = gradient(f, x_even, x_even,
+                            axis=None, edge_order=edge_order)
+            assert_array_equal(res1, res2)
+            assert_array_equal(res2, res3)
+            assert_almost_equal(res1[0], exp_res.T)
+            assert_almost_equal(res1[1], exp_res)
+
+            res1 = gradient(f, 1., axis=0, edge_order=edge_order)
+            res2 = gradient(f, x_even, axis=0, edge_order=edge_order)
+            assert_(res1.shape == res2.shape)
+            assert_almost_equal(res2, exp_res.T)
+
+            res1 = gradient(f, 1., axis=1, edge_order=edge_order)
+            res2 = gradient(f, x_even, axis=1, edge_order=edge_order)
+            assert_(res1.shape == res2.shape)
+            assert_array_equal(res2, exp_res)
+
+        # unevenly spaced
+        for edge_order, exp_res in [(1, fdx_uneven_ord1), (2, fdx_uneven_ord2)]:
+            res1 = gradient(f, x_uneven, x_uneven,
+                            axis=(0, 1), edge_order=edge_order)
+            res2 = gradient(f, x_uneven, x_uneven,
+                            axis=None, edge_order=edge_order)
+            assert_array_equal(res1, res2)
+            assert_almost_equal(res1[0], exp_res.T)
+            assert_almost_equal(res1[1], exp_res)
+
+            res1 = gradient(f, x_uneven, axis=0, edge_order=edge_order)
+            assert_almost_equal(res1, exp_res.T)
+
+            res1 = gradient(f, x_uneven, axis=1, edge_order=edge_order)
+            assert_almost_equal(res1, exp_res)
+
+        # mixed
+        res1 = gradient(f, x_even, x_uneven, axis=(0, 1), edge_order=1)
+        res2 = gradient(f, x_uneven, x_even, axis=(1, 0), edge_order=1)
+        assert_array_equal(res1[0], res2[1])
+        assert_array_equal(res1[1], res2[0])
+        assert_almost_equal(res1[0], fdx_even_ord1.T)
+        assert_almost_equal(res1[1], fdx_uneven_ord1)
+
+        res1 = gradient(f, x_even, x_uneven, axis=(0, 1), edge_order=2)
+        res2 = gradient(f, x_uneven, x_even, axis=(1, 0), edge_order=2)
+        assert_array_equal(res1[0], res2[1])
+        assert_array_equal(res1[1], res2[0])
+        assert_almost_equal(res1[0], fdx_even_ord2.T)
+        assert_almost_equal(res1[1], fdx_uneven_ord2)
+
+    def test_specific_axes(self):
+        # Testing that gradient can work on a given axis only
+        v = [[1, 1], [3, 4]]
+        x = np.array(v)
+        dx = [np.array([[2., 3.], [2., 3.]]),
+              np.array([[0., 0.], [1., 1.]])]
+        assert_array_equal(gradient(x, axis=0), dx[0])
+        assert_array_equal(gradient(x, axis=1), dx[1])
+        assert_array_equal(gradient(x, axis=-1), dx[1])
+        assert_array_equal(gradient(x, axis=(1, 0)), [dx[1], dx[0]])
+
+        # test axis=None which means all axes
+        assert_almost_equal(gradient(x, axis=None), [dx[0], dx[1]])
+        # and is the same as no axis keyword given
+        assert_almost_equal(gradient(x, axis=None), gradient(x))
+
+        # test vararg order
+        assert_array_equal(gradient(x, 2, 3, axis=(1, 0)),
+                           [dx[1] / 2.0, dx[0] / 3.0])
+        # test maximal number of varargs
+        assert_raises(TypeError, gradient, x, 1, 2, axis=1)
+
+        assert_raises(AxisError, gradient, x, axis=3)
+        assert_raises(AxisError, gradient, x, axis=-3)
+        # assert_raises(TypeError, gradient, x, axis=[1,])
+
+    def test_timedelta64(self):
+        # Make sure gradient() can handle special types like timedelta64
+        x = np.array(
+            [-5, -3, 10, 12, 61, 321, 300],
+            dtype='timedelta64[D]')
+        dx = np.array(
+            [2, 7, 7, 25, 154, 119, -21],
+            dtype='timedelta64[D]')
+        assert_array_equal(gradient(x), dx)
+        assert_(dx.dtype == np.dtype('timedelta64[D]'))
+
+    def test_inexact_dtypes(self):
+        for dt in [np.float16, np.float32, np.float64]:
+            # dtypes should not be promoted in a different way to what diff does
+            x = np.array([1, 2, 3], dtype=dt)
+            assert_equal(gradient(x).dtype, np.diff(x).dtype)
+
+    def test_values(self):
+        # needs at least 2 points for edge_order ==1
+        gradient(np.arange(2), edge_order=1)
+        # needs at least 3 points for edge_order ==1
+        gradient(np.arange(3), edge_order=2)
+
+        assert_raises(ValueError, gradient, np.arange(0), edge_order=1)
+        assert_raises(ValueError, gradient, np.arange(0), edge_order=2)
+        assert_raises(ValueError, gradient, np.arange(1), edge_order=1)
+        assert_raises(ValueError, gradient, np.arange(1), edge_order=2)
+        assert_raises(ValueError, gradient, np.arange(2), edge_order=2)
+
+    @pytest.mark.parametrize('f_dtype', [np.uint8, np.uint16,
+                                         np.uint32, np.uint64])
+    def test_f_decreasing_unsigned_int(self, f_dtype):
+        f = np.array([5, 4, 3, 2, 1], dtype=f_dtype)
+        g = gradient(f)
+        assert_array_equal(g, [-1] * len(f))
+
+    @pytest.mark.parametrize('f_dtype', [np.int8, np.int16,
+                                         np.int32, np.int64])
+    def test_f_signed_int_big_jump(self, f_dtype):
+        maxint = np.iinfo(f_dtype).max
+        x = np.array([1, 3])
+        f = np.array([-1, maxint], dtype=f_dtype)
+        dfdx = gradient(f, x)
+        assert_array_equal(dfdx, [(maxint + 1) // 2] * 2)
+
+    @pytest.mark.parametrize('x_dtype', [np.uint8, np.uint16,
+                                         np.uint32, np.uint64])
+    def test_x_decreasing_unsigned(self, x_dtype):
+        x = np.array([3, 2, 1], dtype=x_dtype)
+        f = np.array([0, 2, 4])
+        dfdx = gradient(f, x)
+        assert_array_equal(dfdx, [-2] * len(x))
+
+    @pytest.mark.parametrize('x_dtype', [np.int8, np.int16,
+                                         np.int32, np.int64])
+    def test_x_signed_int_big_jump(self, x_dtype):
+        minint = np.iinfo(x_dtype).min
+        maxint = np.iinfo(x_dtype).max
+        x = np.array([-1, maxint], dtype=x_dtype)
+        f = np.array([minint // 2, 0])
+        dfdx = gradient(f, x)
+        assert_array_equal(dfdx, [0.5, 0.5])
+
+    def test_return_type(self):
+        res = np.gradient(([1, 2], [2, 3]))
+        assert type(res) is tuple
+
+
+class TestAngle:
+
+    def test_basic(self):
+        x = [1 + 3j, np.sqrt(2) / 2.0 + 1j * np.sqrt(2) / 2,
+             1, 1j, -1, -1j, 1 - 3j, -1 + 3j]
+        y = angle(x)
+        yo = [
+            np.arctan(3.0 / 1.0),
+            np.arctan(1.0), 0, np.pi / 2, np.pi, -np.pi / 2.0,
+            -np.arctan(3.0 / 1.0), np.pi - np.arctan(3.0 / 1.0)]
+        z = angle(x, deg=True)
+        zo = np.array(yo) * 180 / np.pi
+        assert_array_almost_equal(y, yo, 11)
+        assert_array_almost_equal(z, zo, 11)
+
+    def test_subclass(self):
+        x = np.ma.array([1 + 3j, 1, np.sqrt(2) / 2 * (1 + 1j)])
+        x[1] = np.ma.masked
+        expected = np.ma.array([np.arctan(3.0 / 1.0), 0, np.arctan(1.0)])
+        expected[1] = np.ma.masked
+        actual = angle(x)
+        assert_equal(type(actual), type(expected))
+        assert_equal(actual.mask, expected.mask)
+        assert_equal(actual, expected)
+
+
+class TestTrimZeros:
+
+    a = np.array([0, 0, 1, 0, 2, 3, 4, 0])
+    b = a.astype(float)
+    c = a.astype(complex)
+    d = a.astype(object)
+
+    def construct_input_output(self, rng, shape, axis, trim):
+        """Construct an input/output test pair for trim_zeros"""
+        # Standardize axis to a tuple.
+        if axis is None:
+            axis = tuple(range(len(shape)))
+        elif isinstance(axis, int):
+            axis = (len(shape) + axis if axis < 0 else axis,)
+        else:
+            axis = tuple(len(shape) + ax if ax < 0 else ax for ax in axis)
+
+        # Populate a random interior slice with nonzero entries.
+        data = np.zeros(shape)
+        i_start = rng.integers(low=0, high=np.array(shape) - 1)
+        i_end = rng.integers(low=i_start + 1, high=shape)
+        inner_shape = tuple(i_end - i_start)
+        inner_data = 1 + rng.random(inner_shape)
+        data[tuple(slice(i, j) for i, j in zip(i_start, i_end))] = inner_data
+
+        # Construct the expected output of N-dimensional trim_zeros
+        # with the given axis and trim arguments.
+        if 'f' not in trim:
+            i_start = np.array([None for _ in shape])
+        if 'b' not in trim:
+            i_end = np.array([None for _ in shape])
+        idx = tuple(slice(i, j) if ax in axis else slice(None)
+                    for ax, (i, j) in enumerate(zip(i_start, i_end)))
+        expected = data[idx]
+
+        return data, expected
+
+    def values(self):
+        attr_names = ('a', 'b', 'c', 'd')
+        return (getattr(self, name) for name in attr_names)
+
+    def test_basic(self):
+        slc = np.s_[2:-1]
+        for arr in self.values():
+            res = trim_zeros(arr)
+            assert_array_equal(res, arr[slc])
+
+    def test_leading_skip(self):
+        slc = np.s_[:-1]
+        for arr in self.values():
+            res = trim_zeros(arr, trim='b')
+            assert_array_equal(res, arr[slc])
+
+    def test_trailing_skip(self):
+        slc = np.s_[2:]
+        for arr in self.values():
+            res = trim_zeros(arr, trim='F')
+            assert_array_equal(res, arr[slc])
+
+    def test_all_zero(self):
+        for _arr in self.values():
+            arr = np.zeros_like(_arr, dtype=_arr.dtype)
+
+            res1 = trim_zeros(arr, trim='B')
+            assert len(res1) == 0
+
+            res2 = trim_zeros(arr, trim='f')
+            assert len(res2) == 0
+
+    def test_size_zero(self):
+        arr = np.zeros(0)
+        res = trim_zeros(arr)
+        assert_array_equal(arr, res)
+
+    @pytest.mark.parametrize(
+        'arr',
+        [np.array([0, 2**62, 0]),
+         np.array([0, 2**63, 0]),
+         np.array([0, 2**64, 0])]
+    )
+    def test_overflow(self, arr):
+        slc = np.s_[1:2]
+        res = trim_zeros(arr)
+        assert_array_equal(res, arr[slc])
+
+    def test_no_trim(self):
+        arr = np.array([None, 1, None])
+        res = trim_zeros(arr)
+        assert_array_equal(arr, res)
+
+    def test_list_to_list(self):
+        res = trim_zeros(self.a.tolist())
+        assert isinstance(res, list)
+
+    @pytest.mark.parametrize("ndim", (0, 1, 2, 3, 10))
+    def test_nd_basic(self, ndim):
+        a = np.ones((2,) * ndim)
+        b = np.pad(a, (2, 1), mode="constant", constant_values=0)
+        res = trim_zeros(b, axis=None)
+        assert_array_equal(a, res)
+
+    @pytest.mark.parametrize("ndim", (0, 1, 2, 3))
+    def test_allzero(self, ndim):
+        a = np.zeros((3,) * ndim)
+        res = trim_zeros(a, axis=None)
+        assert_array_equal(res, np.zeros((0,) * ndim))
+
+    def test_trim_arg(self):
+        a = np.array([0, 1, 2, 0])
+
+        res = trim_zeros(a, trim='f')
+        assert_array_equal(res, [1, 2, 0])
+
+        res = trim_zeros(a, trim='b')
+        assert_array_equal(res, [0, 1, 2])
+
+    @pytest.mark.parametrize("trim", ("front", ""))
+    def test_unexpected_trim_value(self, trim):
+        arr = self.a
+        with pytest.raises(ValueError, match=r"unexpected character\(s\) in `trim`"):
+            trim_zeros(arr, trim=trim)
+
+    @pytest.mark.parametrize("shape, axis", [
+        [(5,), None],
+        [(5,), ()],
+        [(5,), 0],
+        [(5, 6), None],
+        [(5, 6), ()],
+        [(5, 6), 0],
+        [(5, 6), (-1,)],
+        [(5, 6, 7), None],
+        [(5, 6, 7), ()],
+        [(5, 6, 7), 1],
+        [(5, 6, 7), (0, 2)],
+        [(5, 6, 7, 8), None],
+        [(5, 6, 7, 8), ()],
+        [(5, 6, 7, 8), -2],
+        [(5, 6, 7, 8), (0, 1, 3)],
+    ])
+    @pytest.mark.parametrize("trim", ['fb', 'f', 'b'])
+    def test_multiple_axes(self, shape, axis, trim):
+        rng = np.random.default_rng(4321)
+        data, expected = self.construct_input_output(rng, shape, axis, trim)
+        assert_array_equal(trim_zeros(data, axis=axis, trim=trim), expected)
+
+
+class TestExtins:
+
+    def test_basic(self):
+        a = np.array([1, 3, 2, 1, 2, 3, 3])
+        b = extract(a > 1, a)
+        assert_array_equal(b, [3, 2, 2, 3, 3])
+
+    def test_place(self):
+        # Make sure that non-np.ndarray objects
+        # raise an error instead of doing nothing
+        assert_raises(TypeError, place, [1, 2, 3], [True, False], [0, 1])
+
+        a = np.array([1, 4, 3, 2, 5, 8, 7])
+        place(a, [0, 1, 0, 1, 0, 1, 0], [2, 4, 6])
+        assert_array_equal(a, [1, 2, 3, 4, 5, 6, 7])
+
+        place(a, np.zeros(7), [])
+        assert_array_equal(a, np.arange(1, 8))
+
+        place(a, [1, 0, 1, 0, 1, 0, 1], [8, 9])
+        assert_array_equal(a, [8, 2, 9, 4, 8, 6, 9])
+        assert_raises_regex(ValueError, "Cannot insert from an empty array",
+                            lambda: place(a, [0, 0, 0, 0, 0, 1, 0], []))
+
+        # See Issue #6974
+        a = np.array(['12', '34'])
+        place(a, [0, 1], '9')
+        assert_array_equal(a, ['12', '9'])
+
+    def test_both(self):
+        a = rand(10)
+        mask = a > 0.5
+        ac = a.copy()
+        c = extract(mask, a)
+        place(a, mask, 0)
+        place(a, mask, c)
+        assert_array_equal(a, ac)
+
+
+# _foo1 and _foo2 are used in some tests in TestVectorize.
+
+def _foo1(x, y=1.0):
+    return y * math.floor(x)
+
+
+def _foo2(x, y=1.0, z=0.0):
+    return y * math.floor(x) + z
+
+
+class TestVectorize:
+
+    def test_simple(self):
+        def addsubtract(a, b):
+            if a > b:
+                return a - b
+            else:
+                return a + b
+
+        f = vectorize(addsubtract)
+        r = f([0, 3, 6, 9], [1, 3, 5, 7])
+        assert_array_equal(r, [1, 6, 1, 2])
+
+    def test_scalar(self):
+        def addsubtract(a, b):
+            if a > b:
+                return a - b
+            else:
+                return a + b
+
+        f = vectorize(addsubtract)
+        r = f([0, 3, 6, 9], 5)
+        assert_array_equal(r, [5, 8, 1, 4])
+
+    def test_large(self):
+        x = np.linspace(-3, 2, 10000)
+        f = vectorize(lambda x: x)
+        y = f(x)
+        assert_array_equal(y, x)
+
+    def test_ufunc(self):
+        f = vectorize(math.cos)
+        args = np.array([0, 0.5 * np.pi, np.pi, 1.5 * np.pi, 2 * np.pi])
+        r1 = f(args)
+        r2 = np.cos(args)
+        assert_array_almost_equal(r1, r2)
+
+    def test_keywords(self):
+
+        def foo(a, b=1):
+            return a + b
+
+        f = vectorize(foo)
+        args = np.array([1, 2, 3])
+        r1 = f(args)
+        r2 = np.array([2, 3, 4])
+        assert_array_equal(r1, r2)
+        r1 = f(args, 2)
+        r2 = np.array([3, 4, 5])
+        assert_array_equal(r1, r2)
+
+    def test_keywords_with_otypes_order1(self):
+        # gh-1620: The second call of f would crash with
+        # `ValueError: invalid number of arguments`.
+        f = vectorize(_foo1, otypes=[float])
+        # We're testing the caching of ufuncs by vectorize, so the order
+        # of these function calls is an important part of the test.
+        r1 = f(np.arange(3.0), 1.0)
+        r2 = f(np.arange(3.0))
+        assert_array_equal(r1, r2)
+
+    def test_keywords_with_otypes_order2(self):
+        # gh-1620: The second call of f would crash with
+        # `ValueError: non-broadcastable output operand with shape ()
+        # doesn't match the broadcast shape (3,)`.
+        f = vectorize(_foo1, otypes=[float])
+        # We're testing the caching of ufuncs by vectorize, so the order
+        # of these function calls is an important part of the test.
+        r1 = f(np.arange(3.0))
+        r2 = f(np.arange(3.0), 1.0)
+        assert_array_equal(r1, r2)
+
+    def test_keywords_with_otypes_order3(self):
+        # gh-1620: The third call of f would crash with
+        # `ValueError: invalid number of arguments`.
+        f = vectorize(_foo1, otypes=[float])
+        # We're testing the caching of ufuncs by vectorize, so the order
+        # of these function calls is an important part of the test.
+        r1 = f(np.arange(3.0))
+        r2 = f(np.arange(3.0), y=1.0)
+        r3 = f(np.arange(3.0))
+        assert_array_equal(r1, r2)
+        assert_array_equal(r1, r3)
+
+    def test_keywords_with_otypes_several_kwd_args1(self):
+        # gh-1620 Make sure different uses of keyword arguments
+        # don't break the vectorized function.
+        f = vectorize(_foo2, otypes=[float])
+        # We're testing the caching of ufuncs by vectorize, so the order
+        # of these function calls is an important part of the test.
+        r1 = f(10.4, z=100)
+        r2 = f(10.4, y=-1)
+        r3 = f(10.4)
+        assert_equal(r1, _foo2(10.4, z=100))
+        assert_equal(r2, _foo2(10.4, y=-1))
+        assert_equal(r3, _foo2(10.4))
+
+    def test_keywords_with_otypes_several_kwd_args2(self):
+        # gh-1620 Make sure different uses of keyword arguments
+        # don't break the vectorized function.
+        f = vectorize(_foo2, otypes=[float])
+        # We're testing the caching of ufuncs by vectorize, so the order
+        # of these function calls is an important part of the test.
+        r1 = f(z=100, x=10.4, y=-1)
+        r2 = f(1, 2, 3)
+        assert_equal(r1, _foo2(z=100, x=10.4, y=-1))
+        assert_equal(r2, _foo2(1, 2, 3))
+
+    def test_keywords_no_func_code(self):
+        # This needs to test a function that has keywords but
+        # no func_code attribute, since otherwise vectorize will
+        # inspect the func_code.
+        import random
+        try:
+            vectorize(random.randrange)  # Should succeed
+        except Exception:
+            raise AssertionError
+
+    def test_keywords2_ticket_2100(self):
+        # Test kwarg support: enhancement ticket 2100
+
+        def foo(a, b=1):
+            return a + b
+
+        f = vectorize(foo)
+        args = np.array([1, 2, 3])
+        r1 = f(a=args)
+        r2 = np.array([2, 3, 4])
+        assert_array_equal(r1, r2)
+        r1 = f(b=1, a=args)
+        assert_array_equal(r1, r2)
+        r1 = f(args, b=2)
+        r2 = np.array([3, 4, 5])
+        assert_array_equal(r1, r2)
+
+    def test_keywords3_ticket_2100(self):
+        # Test excluded with mixed positional and kwargs: ticket 2100
+        def mypolyval(x, p):
+            _p = list(p)
+            res = _p.pop(0)
+            while _p:
+                res = res * x + _p.pop(0)
+            return res
+
+        vpolyval = np.vectorize(mypolyval, excluded=['p', 1])
+        ans = [3, 6]
+        assert_array_equal(ans, vpolyval(x=[0, 1], p=[1, 2, 3]))
+        assert_array_equal(ans, vpolyval([0, 1], p=[1, 2, 3]))
+        assert_array_equal(ans, vpolyval([0, 1], [1, 2, 3]))
+
+    def test_keywords4_ticket_2100(self):
+        # Test vectorizing function with no positional args.
+        @vectorize
+        def f(**kw):
+            res = 1.0
+            for _k in kw:
+                res *= kw[_k]
+            return res
+
+        assert_array_equal(f(a=[1, 2], b=[3, 4]), [3, 8])
+
+    def test_keywords5_ticket_2100(self):
+        # Test vectorizing function with no kwargs args.
+        @vectorize
+        def f(*v):
+            return np.prod(v)
+
+        assert_array_equal(f([1, 2], [3, 4]), [3, 8])
+
+    def test_coverage1_ticket_2100(self):
+        def foo():
+            return 1
+
+        f = vectorize(foo)
+        assert_array_equal(f(), 1)
+
+    def test_assigning_docstring(self):
+        def foo(x):
+            """Original documentation"""
+            return x
+
+        f = vectorize(foo)
+        assert_equal(f.__doc__, foo.__doc__)
+
+        doc = "Provided documentation"
+        f = vectorize(foo, doc=doc)
+        assert_equal(f.__doc__, doc)
+
+    def test_UnboundMethod_ticket_1156(self):
+        # Regression test for issue 1156
+        class Foo:
+            b = 2
+
+            def bar(self, a):
+                return a ** self.b
+
+        assert_array_equal(vectorize(Foo().bar)(np.arange(9)),
+                           np.arange(9) ** 2)
+        assert_array_equal(vectorize(Foo.bar)(Foo(), np.arange(9)),
+                           np.arange(9) ** 2)
+
+    def test_execution_order_ticket_1487(self):
+        # Regression test for dependence on execution order: issue 1487
+        f1 = vectorize(lambda x: x)
+        res1a = f1(np.arange(3))
+        res1b = f1(np.arange(0.1, 3))
+        f2 = vectorize(lambda x: x)
+        res2b = f2(np.arange(0.1, 3))
+        res2a = f2(np.arange(3))
+        assert_equal(res1a, res2a)
+        assert_equal(res1b, res2b)
+
+    def test_string_ticket_1892(self):
+        # Test vectorization over strings: issue 1892.
+        f = np.vectorize(lambda x: x)
+        s = '0123456789' * 10
+        assert_equal(s, f(s))
+
+    def test_dtype_promotion_gh_29189(self):
+        # dtype should not be silently promoted (int32 -> int64)
+        dtypes = [np.int16, np.int32, np.int64, np.float16, np.float32, np.float64]
+
+        for dtype in dtypes:
+            x = np.asarray([1, 2, 3], dtype=dtype)
+            y = np.vectorize(lambda x: x + x)(x)
+            assert x.dtype == y.dtype
+
+    def test_cache(self):
+        # Ensure that vectorized func called exactly once per argument.
+        _calls = [0]
+
+        @vectorize
+        def f(x):
+            _calls[0] += 1
+            return x ** 2
+
+        f.cache = True
+        x = np.arange(5)
+        assert_array_equal(f(x), x * x)
+        assert_equal(_calls[0], len(x))
+
+    def test_otypes(self):
+        f = np.vectorize(lambda x: x)
+        f.otypes = 'i'
+        x = np.arange(5)
+        assert_array_equal(f(x), x)
+
+    def test_otypes_object_28624(self):
+        # with object otype, the vectorized function should return y
+        # wrapped into an object array
+        y = np.arange(3)
+        f = vectorize(lambda x: y, otypes=[object])
+
+        assert f(None).item() is y
+        assert f([None]).item() is y
+
+        y = [1, 2, 3]
+        f = vectorize(lambda x: y, otypes=[object])
+
+        assert f(None).item() is y
+        assert f([None]).item() is y
+
+    def test_parse_gufunc_signature(self):
+        assert_equal(nfb._parse_gufunc_signature('(x)->()'), ([('x',)], [()]))
+        assert_equal(nfb._parse_gufunc_signature('(x,y)->()'),
+                     ([('x', 'y')], [()]))
+        assert_equal(nfb._parse_gufunc_signature('(x),(y)->()'),
+                     ([('x',), ('y',)], [()]))
+        assert_equal(nfb._parse_gufunc_signature('(x)->(y)'),
+                     ([('x',)], [('y',)]))
+        assert_equal(nfb._parse_gufunc_signature('(x)->(y),()'),
+                     ([('x',)], [('y',), ()]))
+        assert_equal(nfb._parse_gufunc_signature('(),(a,b,c),(d)->(d,e)'),
+                     ([(), ('a', 'b', 'c'), ('d',)], [('d', 'e')]))
+
+        # Tests to check if whitespaces are ignored
+        assert_equal(nfb._parse_gufunc_signature('(x )->()'), ([('x',)], [()]))
+        assert_equal(nfb._parse_gufunc_signature('( x , y )->(  )'),
+                     ([('x', 'y')], [()]))
+        assert_equal(nfb._parse_gufunc_signature('(x),( y) ->()'),
+                     ([('x',), ('y',)], [()]))
+        assert_equal(nfb._parse_gufunc_signature('(  x)-> (y )  '),
+                     ([('x',)], [('y',)]))
+        assert_equal(nfb._parse_gufunc_signature(' (x)->( y),( )'),
+                     ([('x',)], [('y',), ()]))
+        assert_equal(nfb._parse_gufunc_signature(
+                     '(  ), ( a,  b,c )  ,(  d)   ->   (d  ,  e)'),
+                     ([(), ('a', 'b', 'c'), ('d',)], [('d', 'e')]))
+
+        with assert_raises(ValueError):
+            nfb._parse_gufunc_signature('(x)(y)->()')
+        with assert_raises(ValueError):
+            nfb._parse_gufunc_signature('(x),(y)->')
+        with assert_raises(ValueError):
+            nfb._parse_gufunc_signature('((x))->(x)')
+
+    def test_signature_simple(self):
+        def addsubtract(a, b):
+            if a > b:
+                return a - b
+            else:
+                return a + b
+
+        f = vectorize(addsubtract, signature='(),()->()')
+        r = f([0, 3, 6, 9], [1, 3, 5, 7])
+        assert_array_equal(r, [1, 6, 1, 2])
+
+    def test_signature_mean_last(self):
+        def mean(a):
+            return a.mean()
+
+        f = vectorize(mean, signature='(n)->()')
+        r = f([[1, 3], [2, 4]])
+        assert_array_equal(r, [2, 3])
+
+    def test_signature_center(self):
+        def center(a):
+            return a - a.mean()
+
+        f = vectorize(center, signature='(n)->(n)')
+        r = f([[1, 3], [2, 4]])
+        assert_array_equal(r, [[-1, 1], [-1, 1]])
+
+    def test_signature_two_outputs(self):
+        f = vectorize(lambda x: (x, x), signature='()->(),()')
+        r = f([1, 2, 3])
+        assert_(isinstance(r, tuple) and len(r) == 2)
+        assert_array_equal(r[0], [1, 2, 3])
+        assert_array_equal(r[1], [1, 2, 3])
+
+    def test_signature_outer(self):
+        f = vectorize(np.outer, signature='(a),(b)->(a,b)')
+        r = f([1, 2], [1, 2, 3])
+        assert_array_equal(r, [[1, 2, 3], [2, 4, 6]])
+
+        r = f([[[1, 2]]], [1, 2, 3])
+        assert_array_equal(r, [[[[1, 2, 3], [2, 4, 6]]]])
+
+        r = f([[1, 0], [2, 0]], [1, 2, 3])
+        assert_array_equal(r, [[[1, 2, 3], [0, 0, 0]],
+                               [[2, 4, 6], [0, 0, 0]]])
+
+        r = f([1, 2], [[1, 2, 3], [0, 0, 0]])
+        assert_array_equal(r, [[[1, 2, 3], [2, 4, 6]],
+                               [[0, 0, 0], [0, 0, 0]]])
+
+    def test_signature_computed_size(self):
+        f = vectorize(lambda x: x[:-1], signature='(n)->(m)')
+        r = f([1, 2, 3])
+        assert_array_equal(r, [1, 2])
+
+        r = f([[1, 2, 3], [2, 3, 4]])
+        assert_array_equal(r, [[1, 2], [2, 3]])
+
+    def test_signature_excluded(self):
+
+        def foo(a, b=1):
+            return a + b
+
+        f = vectorize(foo, signature='()->()', excluded={'b'})
+        assert_array_equal(f([1, 2, 3]), [2, 3, 4])
+        assert_array_equal(f([1, 2, 3], b=0), [1, 2, 3])
+
+    def test_signature_otypes(self):
+        f = vectorize(lambda x: x, signature='(n)->(n)', otypes=['float64'])
+        r = f([1, 2, 3])
+        assert_equal(r.dtype, np.dtype('float64'))
+        assert_array_equal(r, [1, 2, 3])
+
+    def test_signature_invalid_inputs(self):
+        f = vectorize(operator.add, signature='(n),(n)->(n)')
+        with assert_raises_regex(TypeError, 'wrong number of positional'):
+            f([1, 2])
+        with assert_raises_regex(
+                ValueError, 'does not have enough dimensions'):
+            f(1, 2)
+        with assert_raises_regex(
+                ValueError, 'inconsistent size for core dimension'):
+            f([1, 2], [1, 2, 3])
+
+        f = vectorize(operator.add, signature='()->()')
+        with assert_raises_regex(TypeError, 'wrong number of positional'):
+            f(1, 2)
+
+    def test_signature_invalid_outputs(self):
+
+        f = vectorize(lambda x: x[:-1], signature='(n)->(n)')
+        with assert_raises_regex(
+                ValueError, 'inconsistent size for core dimension'):
+            f([1, 2, 3])
+
+        f = vectorize(lambda x: x, signature='()->(),()')
+        with assert_raises_regex(ValueError, 'wrong number of outputs'):
+            f(1)
+
+        f = vectorize(lambda x: (x, x), signature='()->()')
+        with assert_raises_regex(ValueError, 'wrong number of outputs'):
+            f([1, 2])
+
+    def test_size_zero_output(self):
+        # see issue 5868
+        f = np.vectorize(lambda x: x)
+        x = np.zeros([0, 5], dtype=int)
+        with assert_raises_regex(ValueError, 'otypes'):
+            f(x)
+
+        f.otypes = 'i'
+        assert_array_equal(f(x), x)
+
+        f = np.vectorize(lambda x: x, signature='()->()')
+        with assert_raises_regex(ValueError, 'otypes'):
+            f(x)
+
+        f = np.vectorize(lambda x: x, signature='()->()', otypes='i')
+        assert_array_equal(f(x), x)
+
+        f = np.vectorize(lambda x: x, signature='(n)->(n)', otypes='i')
+        assert_array_equal(f(x), x)
+
+        f = np.vectorize(lambda x: x, signature='(n)->(n)')
+        assert_array_equal(f(x.T), x.T)
+
+        f = np.vectorize(lambda x: [x], signature='()->(n)', otypes='i')
+        with assert_raises_regex(ValueError, 'new output dimensions'):
+            f(x)
+
+    def test_subclasses(self):
+        class subclass(np.ndarray):
+            pass
+
+        m = np.array([[1., 0., 0.],
+                      [0., 0., 1.],
+                      [0., 1., 0.]]).view(subclass)
+        v = np.array([[1., 2., 3.], [4., 5., 6.], [7., 8., 9.]]).view(subclass)
+        # generalized (gufunc)
+        matvec = np.vectorize(np.matmul, signature='(m,m),(m)->(m)')
+        r = matvec(m, v)
+        assert_equal(type(r), subclass)
+        assert_equal(r, [[1., 3., 2.], [4., 6., 5.], [7., 9., 8.]])
+
+        # element-wise (ufunc)
+        mult = np.vectorize(lambda x, y: x * y)
+        r = mult(m, v)
+        assert_equal(type(r), subclass)
+        assert_equal(r, m * v)
+
+    def test_name(self):
+        # gh-23021
+        @np.vectorize
+        def f2(a, b):
+            return a + b
+
+        assert f2.__name__ == 'f2'
+
+    def test_decorator(self):
+        @vectorize
+        def addsubtract(a, b):
+            if a > b:
+                return a - b
+            else:
+                return a + b
+
+        r = addsubtract([0, 3, 6, 9], [1, 3, 5, 7])
+        assert_array_equal(r, [1, 6, 1, 2])
+
+    def test_docstring(self):
+        @vectorize
+        def f(x):
+            """Docstring"""
+            return x
+
+        if sys.flags.optimize < 2:
+            assert f.__doc__ == "Docstring"
+
+    def test_partial(self):
+        def foo(x, y):
+            return x + y
+
+        bar = partial(foo, 3)
+        vbar = np.vectorize(bar)
+        assert vbar(1) == 4
+
+    def test_signature_otypes_decorator(self):
+        @vectorize(signature='(n)->(n)', otypes=['float64'])
+        def f(x):
+            return x
+
+        r = f([1, 2, 3])
+        assert_equal(r.dtype, np.dtype('float64'))
+        assert_array_equal(r, [1, 2, 3])
+        assert f.__name__ == 'f'
+
+    def test_bad_input(self):
+        with assert_raises(TypeError):
+            A = np.vectorize(pyfunc=3)
+
+    def test_no_keywords(self):
+        with assert_raises(TypeError):
+            @np.vectorize("string")
+            def foo():
+                return "bar"
+
+    def test_positional_regression_9477(self):
+        # This supplies the first keyword argument as a positional,
+        # to ensure that they are still properly forwarded after the
+        # enhancement for #9477
+        f = vectorize((lambda x: x), ['float64'])
+        r = f([2])
+        assert_equal(r.dtype, np.dtype('float64'))
+
+    def test_datetime_conversion(self):
+        otype = "datetime64[ns]"
+        arr = np.array(['2024-01-01', '2024-01-02', '2024-01-03'],
+                       dtype='datetime64[ns]')
+        assert_array_equal(np.vectorize(lambda x: x, signature="(i)->(j)",
+                                        otypes=[otype])(arr), arr)
+
+
+class TestLeaks:
+    class A:
+        iters = 20
+
+        def bound(self, *args):
+            return 0
+
+        @staticmethod
+        def unbound(*args):
+            return 0
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    @pytest.mark.skipif(NOGIL_BUILD,
+                        reason=("Functions are immortalized if a thread is "
+                                "launched, making this test flaky"))
+    @pytest.mark.parametrize('name, incr', [
+            ('bound', A.iters),
+            ('unbound', 0),
+            ])
+    @pytest.mark.thread_unsafe(
+        reason="test result depends on the reference count of a global object"
+    )
+    def test_frompyfunc_leaks(self, name, incr):
+        # exposed in gh-11867 as np.vectorized, but the problem stems from
+        # frompyfunc.
+        # class.attribute = np.frompyfunc(<method>) creates a
+        # reference cycle if <method> is a bound class method.
+        # It requires a gc collection cycle to break the cycle.
+        import gc
+        A_func = getattr(self.A, name)
+        gc.disable()
+        try:
+            refcount = sys.getrefcount(A_func)
+            for i in range(self.A.iters):
+                a = self.A()
+                a.f = np.frompyfunc(getattr(a, name), 1, 1)
+                out = a.f(np.arange(10))
+            a = None
+            # A.func is part of a reference cycle if incr is non-zero
+            assert_equal(sys.getrefcount(A_func), refcount + incr)
+            for i in range(5):
+                gc.collect()
+            assert_equal(sys.getrefcount(A_func), refcount)
+        finally:
+            gc.enable()
+
+
+class TestDigitize:
+
+    def test_forward(self):
+        x = np.arange(-6, 5)
+        bins = np.arange(-5, 5)
+        assert_array_equal(digitize(x, bins), np.arange(11))
+
+    def test_reverse(self):
+        x = np.arange(5, -6, -1)
+        bins = np.arange(5, -5, -1)
+        assert_array_equal(digitize(x, bins), np.arange(11))
+
+    def test_random(self):
+        x = rand(10)
+        bin = np.linspace(x.min(), x.max(), 10)
+        assert_(np.all(digitize(x, bin) != 0))
+
+    def test_right_basic(self):
+        x = [1, 5, 4, 10, 8, 11, 0]
+        bins = [1, 5, 10]
+        default_answer = [1, 2, 1, 3, 2, 3, 0]
+        assert_array_equal(digitize(x, bins), default_answer)
+        right_answer = [0, 1, 1, 2, 2, 3, 0]
+        assert_array_equal(digitize(x, bins, True), right_answer)
+
+    def test_right_open(self):
+        x = np.arange(-6, 5)
+        bins = np.arange(-6, 4)
+        assert_array_equal(digitize(x, bins, True), np.arange(11))
+
+    def test_right_open_reverse(self):
+        x = np.arange(5, -6, -1)
+        bins = np.arange(4, -6, -1)
+        assert_array_equal(digitize(x, bins, True), np.arange(11))
+
+    def test_right_open_random(self):
+        x = rand(10)
+        bins = np.linspace(x.min(), x.max(), 10)
+        assert_(np.all(digitize(x, bins, True) != 10))
+
+    def test_monotonic(self):
+        x = [-1, 0, 1, 2]
+        bins = [0, 0, 1]
+        assert_array_equal(digitize(x, bins, False), [0, 2, 3, 3])
+        assert_array_equal(digitize(x, bins, True), [0, 0, 2, 3])
+        bins = [1, 1, 0]
+        assert_array_equal(digitize(x, bins, False), [3, 2, 0, 0])
+        assert_array_equal(digitize(x, bins, True), [3, 3, 2, 0])
+        bins = [1, 1, 1, 1]
+        assert_array_equal(digitize(x, bins, False), [0, 0, 4, 4])
+        assert_array_equal(digitize(x, bins, True), [0, 0, 0, 4])
+        bins = [0, 0, 1, 0]
+        assert_raises(ValueError, digitize, x, bins)
+        bins = [1, 1, 0, 1]
+        assert_raises(ValueError, digitize, x, bins)
+
+    def test_casting_error(self):
+        x = [1, 2, 3 + 1.j]
+        bins = [1, 2, 3]
+        assert_raises(TypeError, digitize, x, bins)
+        x, bins = bins, x
+        assert_raises(TypeError, digitize, x, bins)
+
+    def test_return_type(self):
+        # Functions returning indices should always return base ndarrays
+        class A(np.ndarray):
+            pass
+        a = np.arange(5).view(A)
+        b = np.arange(1, 3).view(A)
+        assert_(not isinstance(digitize(b, a, False), A))
+        assert_(not isinstance(digitize(b, a, True), A))
+
+    def test_large_integers_increasing(self):
+        # gh-11022
+        x = 2**54  # loses precision in a float
+        assert_equal(np.digitize(x, [x - 1, x + 1]), 1)
+
+    @pytest.mark.xfail(
+        reason="gh-11022: np._core.multiarray._monoticity loses precision")
+    def test_large_integers_decreasing(self):
+        # gh-11022
+        x = 2**54  # loses precision in a float
+        assert_equal(np.digitize(x, [x + 1, x - 1]), 1)
+
+
+class TestUnwrap:
+
+    def test_simple(self):
+        # check that unwrap removes jumps greater that 2*pi
+        assert_array_equal(unwrap([1, 1 + 2 * np.pi]), [1, 1])
+        # check that unwrap maintains continuity
+        assert_(np.all(diff(unwrap(rand(10) * 100)) < np.pi))
+
+    def test_period(self):
+        # check that unwrap removes jumps greater that 255
+        assert_array_equal(unwrap([1, 1 + 256], period=255), [1, 2])
+        # check that unwrap maintains continuity
+        assert_(np.all(diff(unwrap(rand(10) * 1000, period=255)) < 255))
+        # check simple case
+        simple_seq = np.array([0, 75, 150, 225, 300])
+        wrap_seq = np.mod(simple_seq, 255)
+        assert_array_equal(unwrap(wrap_seq, period=255), simple_seq)
+        # check custom discont value
+        uneven_seq = np.array([0, 75, 150, 225, 300, 430])
+        wrap_uneven = np.mod(uneven_seq, 250)
+        no_discont = unwrap(wrap_uneven, period=250)
+        assert_array_equal(no_discont, [0, 75, 150, 225, 300, 180])
+        sm_discont = unwrap(wrap_uneven, period=250, discont=140)
+        assert_array_equal(sm_discont, [0, 75, 150, 225, 300, 430])
+        assert sm_discont.dtype == wrap_uneven.dtype
+
+
+@pytest.mark.parametrize(
+    "dtype", "O" + np.typecodes["AllInteger"] + np.typecodes["Float"]
+)
+@pytest.mark.parametrize("M", [0, 1, 10])
+class TestFilterwindows:
+
+    def test_hanning(self, dtype: str, M: int) -> None:
+        scalar = np.array(M, dtype=dtype)[()]
+
+        w = hanning(scalar)
+        if dtype == "O":
+            ref_dtype = np.float64
+        else:
+            ref_dtype = np.result_type(scalar.dtype, np.float64)
+        assert w.dtype == ref_dtype
+
+        # check symmetry
+        assert_equal(w, flipud(w))
+
+        # check known value
+        if scalar < 1:
+            assert_array_equal(w, np.array([]))
+        elif scalar == 1:
+            assert_array_equal(w, np.ones(1))
+        else:
+            assert_almost_equal(np.sum(w, axis=0), 4.500, 4)
+
+    def test_hamming(self, dtype: str, M: int) -> None:
+        scalar = np.array(M, dtype=dtype)[()]
+
+        w = hamming(scalar)
+        if dtype == "O":
+            ref_dtype = np.float64
+        else:
+            ref_dtype = np.result_type(scalar.dtype, np.float64)
+        assert w.dtype == ref_dtype
+
+        # check symmetry
+        assert_equal(w, flipud(w))
+
+        # check known value
+        if scalar < 1:
+            assert_array_equal(w, np.array([]))
+        elif scalar == 1:
+            assert_array_equal(w, np.ones(1))
+        else:
+            assert_almost_equal(np.sum(w, axis=0), 4.9400, 4)
+
+    def test_bartlett(self, dtype: str, M: int) -> None:
+        scalar = np.array(M, dtype=dtype)[()]
+
+        w = bartlett(scalar)
+        if dtype == "O":
+            ref_dtype = np.float64
+        else:
+            ref_dtype = np.result_type(scalar.dtype, np.float64)
+        assert w.dtype == ref_dtype
+
+        # check symmetry
+        assert_equal(w, flipud(w))
+
+        # check known value
+        if scalar < 1:
+            assert_array_equal(w, np.array([]))
+        elif scalar == 1:
+            assert_array_equal(w, np.ones(1))
+        else:
+            assert_almost_equal(np.sum(w, axis=0), 4.4444, 4)
+
+    def test_blackman(self, dtype: str, M: int) -> None:
+        scalar = np.array(M, dtype=dtype)[()]
+
+        w = blackman(scalar)
+        if dtype == "O":
+            ref_dtype = np.float64
+        else:
+            ref_dtype = np.result_type(scalar.dtype, np.float64)
+        assert w.dtype == ref_dtype
+
+        # check symmetry
+        assert_equal(w, flipud(w))
+
+        # check known value
+        if scalar < 1:
+            assert_array_equal(w, np.array([]))
+        elif scalar == 1:
+            assert_array_equal(w, np.ones(1))
+        else:
+            assert_almost_equal(np.sum(w, axis=0), 3.7800, 4)
+
+    def test_kaiser(self, dtype: str, M: int) -> None:
+        scalar = np.array(M, dtype=dtype)[()]
+
+        w = kaiser(scalar, 0)
+        if dtype == "O":
+            ref_dtype = np.float64
+        else:
+            ref_dtype = np.result_type(scalar.dtype, np.float64)
+        assert w.dtype == ref_dtype
+
+        # check symmetry
+        assert_equal(w, flipud(w))
+
+        # check known value
+        if scalar < 1:
+            assert_array_equal(w, np.array([]))
+        elif scalar == 1:
+            assert_array_equal(w, np.ones(1))
+        else:
+            assert_almost_equal(np.sum(w, axis=0), 10, 15)
+
+
+class TestTrapezoid:
+
+    def test_simple(self):
+        x = np.arange(-10, 10, .1)
+        r = trapezoid(np.exp(-.5 * x ** 2) / np.sqrt(2 * np.pi), dx=0.1)
+        # check integral of normal equals 1
+        assert_almost_equal(r, 1, 7)
+
+    def test_ndim(self):
+        x = np.linspace(0, 1, 3)
+        y = np.linspace(0, 2, 8)
+        z = np.linspace(0, 3, 13)
+
+        wx = np.ones_like(x) * (x[1] - x[0])
+        wx[0] /= 2
+        wx[-1] /= 2
+        wy = np.ones_like(y) * (y[1] - y[0])
+        wy[0] /= 2
+        wy[-1] /= 2
+        wz = np.ones_like(z) * (z[1] - z[0])
+        wz[0] /= 2
+        wz[-1] /= 2
+
+        q = x[:, None, None] + y[None, :, None] + z[None, None, :]
+
+        qx = (q * wx[:, None, None]).sum(axis=0)
+        qy = (q * wy[None, :, None]).sum(axis=1)
+        qz = (q * wz[None, None, :]).sum(axis=2)
+
+        # n-d `x`
+        r = trapezoid(q, x=x[:, None, None], axis=0)
+        assert_almost_equal(r, qx)
+        r = trapezoid(q, x=y[None, :, None], axis=1)
+        assert_almost_equal(r, qy)
+        r = trapezoid(q, x=z[None, None, :], axis=2)
+        assert_almost_equal(r, qz)
+
+        # 1-d `x`
+        r = trapezoid(q, x=x, axis=0)
+        assert_almost_equal(r, qx)
+        r = trapezoid(q, x=y, axis=1)
+        assert_almost_equal(r, qy)
+        r = trapezoid(q, x=z, axis=2)
+        assert_almost_equal(r, qz)
+
+    def test_masked(self):
+        # Testing that masked arrays behave as if the function is 0 where
+        # masked
+        x = np.arange(5)
+        y = x * x
+        mask = x == 2
+        ym = np.ma.array(y, mask=mask)
+        r = 13.0  # sum(0.5 * (0 + 1) * 1.0 + 0.5 * (9 + 16))
+        assert_almost_equal(trapezoid(ym, x), r)
+
+        xm = np.ma.array(x, mask=mask)
+        assert_almost_equal(trapezoid(ym, xm), r)
+
+        xm = np.ma.array(x, mask=mask)
+        assert_almost_equal(trapezoid(y, xm), r)
+
+
+class TestSinc:
+
+    def test_simple(self):
+        assert_(sinc(0) == 1)
+        w = sinc(np.linspace(-1, 1, 100))
+        # check symmetry
+        assert_array_almost_equal(w, flipud(w), 7)
+
+    def test_array_like(self):
+        x = [0, 0.5]
+        y1 = sinc(np.array(x))
+        y2 = sinc(list(x))
+        y3 = sinc(tuple(x))
+        assert_array_equal(y1, y2)
+        assert_array_equal(y1, y3)
+
+    def test_bool_dtype(self):
+        x = (np.arange(4, dtype=np.uint8) % 2 == 1)
+        actual = sinc(x)
+        expected = sinc(x.astype(np.float64))
+        assert_allclose(actual, expected)
+        assert actual.dtype == np.float64
+
+    @pytest.mark.parametrize('dtype', [np.uint8, np.int16, np.uint64])
+    def test_int_dtypes(self, dtype):
+        x = np.arange(4, dtype=dtype)
+        actual = sinc(x)
+        expected = sinc(x.astype(np.float64))
+        assert_allclose(actual, expected)
+        assert actual.dtype == np.float64
+
+    @pytest.mark.parametrize(
+            'dtype',
+            [np.float16, np.float32, np.longdouble, np.complex64, np.complex128]
+    )
+    def test_float_dtypes(self, dtype):
+        x = np.arange(4, dtype=dtype)
+        assert sinc(x).dtype == x.dtype
+
+    def test_float16_underflow(self):
+        x = np.float16(0)
+        # before gh-27784, fill value for 0 in input would underflow float16,
+        # resulting in nan
+        assert_array_equal(sinc(x), np.asarray(1.0))
+
+
+class TestUnique:
+
+    def test_simple(self):
+        x = np.array([4, 3, 2, 1, 1, 2, 3, 4, 0])
+        assert_(np.all(unique(x) == [0, 1, 2, 3, 4]))
+        assert_(unique(np.array([1, 1, 1, 1, 1])) == np.array([1]))
+        x = ['widget', 'ham', 'foo', 'bar', 'foo', 'ham']
+        assert_(np.all(unique(x) == ['bar', 'foo', 'ham', 'widget']))
+        x = np.array([5 + 6j, 1 + 1j, 1 + 10j, 10, 5 + 6j])
+        assert_(np.all(unique(x) == [1 + 1j, 1 + 10j, 5 + 6j, 10]))
+
+
+class TestCheckFinite:
+
+    def test_simple(self):
+        a = [1, 2, 3]
+        b = [1, 2, np.inf]
+        c = [1, 2, np.nan]
+        np.asarray_chkfinite(a)
+        assert_raises(ValueError, np.asarray_chkfinite, b)
+        assert_raises(ValueError, np.asarray_chkfinite, c)
+
+    def test_dtype_order(self):
+        # Regression test for missing dtype and order arguments
+        a = [1, 2, 3]
+        a = np.asarray_chkfinite(a, order='F', dtype=np.float64)
+        assert_(a.dtype == np.float64)
+
+
+class TestCorrCoef:
+    A = np.array(
+        [[0.15391142, 0.18045767, 0.14197213],
+         [0.70461506, 0.96474128, 0.27906989],
+         [0.9297531, 0.32296769, 0.19267156]])
+    B = np.array(
+        [[0.10377691, 0.5417086, 0.49807457],
+         [0.82872117, 0.77801674, 0.39226705],
+         [0.9314666, 0.66800209, 0.03538394]])
+    res1 = np.array(
+        [[1., 0.9379533, -0.04931983],
+         [0.9379533, 1., 0.30007991],
+         [-0.04931983, 0.30007991, 1.]])
+    res2 = np.array(
+        [[1., 0.9379533, -0.04931983, 0.30151751, 0.66318558, 0.51532523],
+         [0.9379533, 1., 0.30007991, -0.04781421, 0.88157256, 0.78052386],
+         [-0.04931983, 0.30007991, 1., -0.96717111, 0.71483595, 0.83053601],
+         [0.30151751, -0.04781421, -0.96717111, 1., -0.51366032, -0.66173113],
+         [0.66318558, 0.88157256, 0.71483595, -0.51366032, 1., 0.98317823],
+         [0.51532523, 0.78052386, 0.83053601, -0.66173113, 0.98317823, 1.]])
+
+    def test_non_array(self):
+        assert_almost_equal(np.corrcoef([0, 1, 0], [1, 0, 1]),
+                            [[1., -1.], [-1., 1.]])
+
+    def test_simple(self):
+        tgt1 = corrcoef(self.A)
+        assert_almost_equal(tgt1, self.res1)
+        assert_(np.all(np.abs(tgt1) <= 1.0))
+
+        tgt2 = corrcoef(self.A, self.B)
+        assert_almost_equal(tgt2, self.res2)
+        assert_(np.all(np.abs(tgt2) <= 1.0))
+
+    def test_complex(self):
+        x = np.array([[1, 2, 3], [1j, 2j, 3j]])
+        res = corrcoef(x)
+        tgt = np.array([[1., -1.j], [1.j, 1.]])
+        assert_allclose(res, tgt)
+        assert_(np.all(np.abs(res) <= 1.0))
+
+    def test_xy(self):
+        x = np.array([[1, 2, 3]])
+        y = np.array([[1j, 2j, 3j]])
+        assert_allclose(np.corrcoef(x, y), np.array([[1., -1.j], [1.j, 1.]]))
+
+    def test_empty(self):
+        with warnings.catch_warnings(record=True):
+            warnings.simplefilter('always', RuntimeWarning)
+            assert_array_equal(corrcoef(np.array([])), np.nan)
+            assert_array_equal(corrcoef(np.array([]).reshape(0, 2)),
+                               np.array([]).reshape(0, 0))
+            assert_array_equal(corrcoef(np.array([]).reshape(2, 0)),
+                               np.array([[np.nan, np.nan], [np.nan, np.nan]]))
+
+    def test_extreme(self):
+        x = [[1e-100, 1e100], [1e100, 1e-100]]
+        with np.errstate(all='raise'):
+            c = corrcoef(x)
+        assert_array_almost_equal(c, np.array([[1., -1.], [-1., 1.]]))
+        assert_(np.all(np.abs(c) <= 1.0))
+
+    @pytest.mark.parametrize("test_type", np_floats)
+    def test_corrcoef_dtype(self, test_type):
+        cast_A = self.A.astype(test_type)
+        res = corrcoef(cast_A, dtype=test_type)
+        assert test_type == res.dtype
+
+
+class TestCov:
+    x1 = np.array([[0, 2], [1, 1], [2, 0]]).T
+    res1 = np.array([[1., -1.], [-1., 1.]])
+    x2 = np.array([0.0, 1.0, 2.0], ndmin=2)
+    frequencies = np.array([1, 4, 1])
+    x2_repeats = np.array([[0.0], [1.0], [1.0], [1.0], [1.0], [2.0]]).T
+    res2 = np.array([[0.4, -0.4], [-0.4, 0.4]])
+    unit_frequencies = np.ones(3, dtype=np.int_)
+    weights = np.array([1.0, 4.0, 1.0])
+    res3 = np.array([[2. / 3., -2. / 3.], [-2. / 3., 2. / 3.]])
+    unit_weights = np.ones(3)
+    x3 = np.array([0.3942, 0.5969, 0.7730, 0.9918, 0.7964])
+
+    def test_basic(self):
+        assert_allclose(cov(self.x1), self.res1)
+
+    def test_complex(self):
+        x = np.array([[1, 2, 3], [1j, 2j, 3j]])
+        res = np.array([[1., -1.j], [1.j, 1.]])
+        assert_allclose(cov(x), res)
+        assert_allclose(cov(x, aweights=np.ones(3)), res)
+
+    def test_xy(self):
+        x = np.array([[1, 2, 3]])
+        y = np.array([[1j, 2j, 3j]])
+        assert_allclose(cov(x, y), np.array([[1., -1.j], [1.j, 1.]]))
+
+    def test_empty(self):
+        with warnings.catch_warnings(record=True):
+            warnings.simplefilter('always', RuntimeWarning)
+            assert_array_equal(cov(np.array([])), np.nan)
+            assert_array_equal(cov(np.array([]).reshape(0, 2)),
+                               np.array([]).reshape(0, 0))
+            assert_array_equal(cov(np.array([]).reshape(2, 0)),
+                               np.array([[np.nan, np.nan], [np.nan, np.nan]]))
+
+    def test_wrong_ddof(self):
+        with warnings.catch_warnings(record=True):
+            warnings.simplefilter('always', RuntimeWarning)
+            assert_array_equal(cov(self.x1, ddof=5),
+                               np.array([[np.inf, -np.inf],
+                                         [-np.inf, np.inf]]))
+
+    def test_1D_rowvar(self):
+        assert_allclose(cov(self.x3), cov(self.x3, rowvar=False))
+        y = np.array([0.0780, 0.3107, 0.2111, 0.0334, 0.8501])
+        assert_allclose(cov(self.x3, y), cov(self.x3, y, rowvar=False))
+
+    def test_1D_variance(self):
+        assert_allclose(cov(self.x3, ddof=1), np.var(self.x3, ddof=1))
+
+    def test_fweights(self):
+        assert_allclose(cov(self.x2, fweights=self.frequencies),
+                        cov(self.x2_repeats))
+        assert_allclose(cov(self.x1, fweights=self.frequencies),
+                        self.res2)
+        assert_allclose(cov(self.x1, fweights=self.unit_frequencies),
+                        self.res1)
+        nonint = self.frequencies + 0.5
+        assert_raises(TypeError, cov, self.x1, fweights=nonint)
+        f = np.ones((2, 3), dtype=np.int_)
+        assert_raises(RuntimeError, cov, self.x1, fweights=f)
+        f = np.ones(2, dtype=np.int_)
+        assert_raises(RuntimeError, cov, self.x1, fweights=f)
+        f = -1 * np.ones(3, dtype=np.int_)
+        assert_raises(ValueError, cov, self.x1, fweights=f)
+
+    def test_aweights(self):
+        assert_allclose(cov(self.x1, aweights=self.weights), self.res3)
+        assert_allclose(cov(self.x1, aweights=3.0 * self.weights),
+                        cov(self.x1, aweights=self.weights))
+        assert_allclose(cov(self.x1, aweights=self.unit_weights), self.res1)
+        w = np.ones((2, 3))
+        assert_raises(RuntimeError, cov, self.x1, aweights=w)
+        w = np.ones(2)
+        assert_raises(RuntimeError, cov, self.x1, aweights=w)
+        w = -1.0 * np.ones(3)
+        assert_raises(ValueError, cov, self.x1, aweights=w)
+
+    def test_unit_fweights_and_aweights(self):
+        assert_allclose(cov(self.x2, fweights=self.frequencies,
+                            aweights=self.unit_weights),
+                        cov(self.x2_repeats))
+        assert_allclose(cov(self.x1, fweights=self.frequencies,
+                            aweights=self.unit_weights),
+                        self.res2)
+        assert_allclose(cov(self.x1, fweights=self.unit_frequencies,
+                            aweights=self.unit_weights),
+                        self.res1)
+        assert_allclose(cov(self.x1, fweights=self.unit_frequencies,
+                            aweights=self.weights),
+                        self.res3)
+        assert_allclose(cov(self.x1, fweights=self.unit_frequencies,
+                            aweights=3.0 * self.weights),
+                        cov(self.x1, aweights=self.weights))
+        assert_allclose(cov(self.x1, fweights=self.unit_frequencies,
+                            aweights=self.unit_weights),
+                        self.res1)
+
+    @pytest.mark.parametrize("test_type", np_floats)
+    def test_cov_dtype(self, test_type):
+        cast_x1 = self.x1.astype(test_type)
+        res = cov(cast_x1, dtype=test_type)
+        assert test_type == res.dtype
+
+    def test_gh_27658(self):
+        x = np.ones((3, 1))
+        expected = np.cov(x, ddof=0, rowvar=True)
+        actual = np.cov(x.T, ddof=0, rowvar=False)
+        assert_allclose(actual, expected, strict=True)
+
+
+class Test_I0:
+
+    def test_simple(self):
+        assert_almost_equal(
+            i0(0.5),
+            np.array(1.0634833707413234))
+
+        # need at least one test above 8, as the implementation is piecewise
+        A = np.array([0.49842636, 0.6969809, 0.22011976, 0.0155549, 10.0])
+        expected = np.array([1.06307822, 1.12518299, 1.01214991,
+                             1.00006049, 2815.71662847])
+        assert_almost_equal(i0(A), expected)
+        assert_almost_equal(i0(-A), expected)
+
+        B = np.array([[0.827002, 0.99959078],
+                      [0.89694769, 0.39298162],
+                      [0.37954418, 0.05206293],
+                      [0.36465447, 0.72446427],
+                      [0.48164949, 0.50324519]])
+        assert_almost_equal(
+            i0(B),
+            np.array([[1.17843223, 1.26583466],
+                      [1.21147086, 1.03898290],
+                      [1.03633899, 1.00067775],
+                      [1.03352052, 1.13557954],
+                      [1.05884290, 1.06432317]]))
+        # Regression test for gh-11205
+        i0_0 = np.i0([0.])
+        assert_equal(i0_0.shape, (1,))
+        assert_array_equal(np.i0([0.]), np.array([1.]))
+
+    def test_non_array(self):
+        a = np.arange(4)
+
+        class array_like:
+            __array_interface__ = a.__array_interface__
+
+            def __array_wrap__(self, arr, context, return_scalar):
+                return self
+
+        # E.g. pandas series survive ufunc calls through array-wrap:
+        assert isinstance(np.abs(array_like()), array_like)
+        exp = np.i0(a)
+        res = np.i0(array_like())
+
+        assert_array_equal(exp, res)
+
+    def test_complex(self):
+        a = np.array([0, 1 + 2j])
+        with pytest.raises(TypeError, match="i0 not supported for complex values"):
+            res = i0(a)
+
+
+class TestKaiser:
+
+    def test_simple(self):
+        assert_(np.isfinite(kaiser(1, 1.0)))
+        assert_almost_equal(kaiser(0, 1.0),
+                            np.array([]))
+        assert_almost_equal(kaiser(2, 1.0),
+                            np.array([0.78984831, 0.78984831]))
+        assert_almost_equal(kaiser(5, 1.0),
+                            np.array([0.78984831, 0.94503323, 1.,
+                                      0.94503323, 0.78984831]))
+        assert_almost_equal(kaiser(5, 1.56789),
+                            np.array([0.58285404, 0.88409679, 1.,
+                                      0.88409679, 0.58285404]))
+
+    def test_int_beta(self):
+        kaiser(3, 4)
+
+
+class TestMeshgrid:
+
+    def test_simple(self):
+        [X, Y] = meshgrid([1, 2, 3], [4, 5, 6, 7])
+        assert_array_equal(X, np.array([[1, 2, 3],
+                                        [1, 2, 3],
+                                        [1, 2, 3],
+                                        [1, 2, 3]]))
+        assert_array_equal(Y, np.array([[4, 4, 4],
+                                        [5, 5, 5],
+                                        [6, 6, 6],
+                                        [7, 7, 7]]))
+
+    def test_single_input(self):
+        [X] = meshgrid([1, 2, 3, 4])
+        assert_array_equal(X, np.array([1, 2, 3, 4]))
+
+    def test_no_input(self):
+        args = []
+        assert_array_equal([], meshgrid(*args))
+        assert_array_equal([], meshgrid(*args, copy=False))
+
+    def test_indexing(self):
+        x = [1, 2, 3]
+        y = [4, 5, 6, 7]
+        [X, Y] = meshgrid(x, y, indexing='ij')
+        assert_array_equal(X, np.array([[1, 1, 1, 1],
+                                        [2, 2, 2, 2],
+                                        [3, 3, 3, 3]]))
+        assert_array_equal(Y, np.array([[4, 5, 6, 7],
+                                        [4, 5, 6, 7],
+                                        [4, 5, 6, 7]]))
+
+        # Test expected shapes:
+        z = [8, 9]
+        assert_(meshgrid(x, y)[0].shape == (4, 3))
+        assert_(meshgrid(x, y, indexing='ij')[0].shape == (3, 4))
+        assert_(meshgrid(x, y, z)[0].shape == (4, 3, 2))
+        assert_(meshgrid(x, y, z, indexing='ij')[0].shape == (3, 4, 2))
+
+        assert_raises(ValueError, meshgrid, x, y, indexing='notvalid')
+
+    def test_sparse(self):
+        [X, Y] = meshgrid([1, 2, 3], [4, 5, 6, 7], sparse=True)
+        assert_array_equal(X, np.array([[1, 2, 3]]))
+        assert_array_equal(Y, np.array([[4], [5], [6], [7]]))
+
+    def test_invalid_arguments(self):
+        # Test that meshgrid complains about invalid arguments
+        # Regression test for issue #4755:
+        # https://github.com/numpy/numpy/issues/4755
+        assert_raises(TypeError, meshgrid,
+                      [1, 2, 3], [4, 5, 6, 7], indices='ij')
+
+    def test_return_type(self):
+        # Test for appropriate dtype in returned arrays.
+        # Regression test for issue #5297
+        # https://github.com/numpy/numpy/issues/5297
+        x = np.arange(0, 10, dtype=np.float32)
+        y = np.arange(10, 20, dtype=np.float64)
+
+        X, Y = np.meshgrid(x, y)
+
+        assert_(X.dtype == x.dtype)
+        assert_(Y.dtype == y.dtype)
+
+        # copy
+        X, Y = np.meshgrid(x, y, copy=True)
+
+        assert_(X.dtype == x.dtype)
+        assert_(Y.dtype == y.dtype)
+
+        # sparse
+        X, Y = np.meshgrid(x, y, sparse=True)
+
+        assert_(X.dtype == x.dtype)
+        assert_(Y.dtype == y.dtype)
+
+    def test_writeback(self):
+        # Issue 8561
+        X = np.array([1.1, 2.2])
+        Y = np.array([3.3, 4.4])
+        x, y = np.meshgrid(X, Y, sparse=False, copy=True)
+
+        x[0, :] = 0
+        assert_equal(x[0, :], 0)
+        assert_equal(x[1, :], X)
+
+    def test_nd_shape(self):
+        a, b, c, d, e = np.meshgrid(*([0] * i for i in range(1, 6)))
+        expected_shape = (2, 1, 3, 4, 5)
+        assert_equal(a.shape, expected_shape)
+        assert_equal(b.shape, expected_shape)
+        assert_equal(c.shape, expected_shape)
+        assert_equal(d.shape, expected_shape)
+        assert_equal(e.shape, expected_shape)
+
+    def test_nd_values(self):
+        a, b, c = np.meshgrid([0], [1, 2], [3, 4, 5])
+        assert_equal(a, [[[0, 0, 0]], [[0, 0, 0]]])
+        assert_equal(b, [[[1, 1, 1]], [[2, 2, 2]]])
+        assert_equal(c, [[[3, 4, 5]], [[3, 4, 5]]])
+
+    def test_nd_indexing(self):
+        a, b, c = np.meshgrid([0], [1, 2], [3, 4, 5], indexing='ij')
+        assert_equal(a, [[[0, 0, 0], [0, 0, 0]]])
+        assert_equal(b, [[[1, 1, 1], [2, 2, 2]]])
+        assert_equal(c, [[[3, 4, 5], [3, 4, 5]]])
+
+
+class TestPiecewise:
+
+    def test_simple(self):
+        # Condition is single bool list
+        x = piecewise([0, 0], [True, False], [1])
+        assert_array_equal(x, [1, 0])
+
+        # List of conditions: single bool list
+        x = piecewise([0, 0], [[True, False]], [1])
+        assert_array_equal(x, [1, 0])
+
+        # Conditions is single bool array
+        x = piecewise([0, 0], np.array([True, False]), [1])
+        assert_array_equal(x, [1, 0])
+
+        # Condition is single int array
+        x = piecewise([0, 0], np.array([1, 0]), [1])
+        assert_array_equal(x, [1, 0])
+
+        # List of conditions: int array
+        x = piecewise([0, 0], [np.array([1, 0])], [1])
+        assert_array_equal(x, [1, 0])
+
+        x = piecewise([0, 0], [[False, True]], [lambda x:-1])
+        assert_array_equal(x, [0, -1])
+
+        assert_raises_regex(ValueError, '1 or 2 functions are expected',
+            piecewise, [0, 0], [[False, True]], [])
+        assert_raises_regex(ValueError, '1 or 2 functions are expected',
+            piecewise, [0, 0], [[False, True]], [1, 2, 3])
+
+    def test_two_conditions(self):
+        x = piecewise([1, 2], [[True, False], [False, True]], [3, 4])
+        assert_array_equal(x, [3, 4])
+
+    def test_scalar_domains_three_conditions(self):
+        x = piecewise(3, [True, False, False], [4, 2, 0])
+        assert_equal(x, 4)
+
+    def test_default(self):
+        # No value specified for x[1], should be 0
+        x = piecewise([1, 2], [True, False], [2])
+        assert_array_equal(x, [2, 0])
+
+        # Should set x[1] to 3
+        x = piecewise([1, 2], [True, False], [2, 3])
+        assert_array_equal(x, [2, 3])
+
+    def test_0d(self):
+        x = np.array(3)
+        y = piecewise(x, x > 3, [4, 0])
+        assert_(y.ndim == 0)
+        assert_(y == 0)
+
+        x = 5
+        y = piecewise(x, [True, False], [1, 0])
+        assert_(y.ndim == 0)
+        assert_(y == 1)
+
+        # With 3 ranges (It was failing, before)
+        y = piecewise(x, [False, False, True], [1, 2, 3])
+        assert_array_equal(y, 3)
+
+    def test_0d_comparison(self):
+        x = 3
+        y = piecewise(x, [x <= 3, x > 3], [4, 0])  # Should succeed.
+        assert_equal(y, 4)
+
+        # With 3 ranges (It was failing, before)
+        x = 4
+        y = piecewise(x, [x <= 3, (x > 3) * (x <= 5), x > 5], [1, 2, 3])
+        assert_array_equal(y, 2)
+
+        assert_raises_regex(ValueError, '2 or 3 functions are expected',
+            piecewise, x, [x <= 3, x > 3], [1])
+        assert_raises_regex(ValueError, '2 or 3 functions are expected',
+            piecewise, x, [x <= 3, x > 3], [1, 1, 1, 1])
+
+    def test_0d_0d_condition(self):
+        x = np.array(3)
+        c = np.array(x > 3)
+        y = piecewise(x, [c], [1, 2])
+        assert_equal(y, 2)
+
+    def test_multidimensional_extrafunc(self):
+        x = np.array([[-2.5, -1.5, -0.5],
+                      [0.5, 1.5, 2.5]])
+        y = piecewise(x, [x < 0, x >= 2], [-1, 1, 3])
+        assert_array_equal(y, np.array([[-1., -1., -1.],
+                                        [3., 3., 1.]]))
+
+    def test_subclasses(self):
+        class subclass(np.ndarray):
+            pass
+        x = np.arange(5.).view(subclass)
+        r = piecewise(x, [x < 2., x >= 4], [-1., 1., 0.])
+        assert_equal(type(r), subclass)
+        assert_equal(r, [-1., -1., 0., 0., 1.])
+
+
+class TestBincount:
+
+    def test_simple(self):
+        y = np.bincount(np.arange(4))
+        assert_array_equal(y, np.ones(4))
+
+    def test_simple2(self):
+        y = np.bincount(np.array([1, 5, 2, 4, 1]))
+        assert_array_equal(y, np.array([0, 2, 1, 0, 1, 1]))
+
+    def test_simple_weight(self):
+        x = np.arange(4)
+        w = np.array([0.2, 0.3, 0.5, 0.1])
+        y = np.bincount(x, w)
+        assert_array_equal(y, w)
+
+    def test_simple_weight2(self):
+        x = np.array([1, 2, 4, 5, 2])
+        w = np.array([0.2, 0.3, 0.5, 0.1, 0.2])
+        y = np.bincount(x, w)
+        assert_array_equal(y, np.array([0, 0.2, 0.5, 0, 0.5, 0.1]))
+
+    def test_with_minlength(self):
+        x = np.array([0, 1, 0, 1, 1])
+        y = np.bincount(x, minlength=3)
+        assert_array_equal(y, np.array([2, 3, 0]))
+        x = []
+        y = np.bincount(x, minlength=0)
+        assert_array_equal(y, np.array([]))
+
+    def test_with_minlength_smaller_than_maxvalue(self):
+        x = np.array([0, 1, 1, 2, 2, 3, 3])
+        y = np.bincount(x, minlength=2)
+        assert_array_equal(y, np.array([1, 2, 2, 2]))
+        y = np.bincount(x, minlength=0)
+        assert_array_equal(y, np.array([1, 2, 2, 2]))
+
+    def test_with_minlength_and_weights(self):
+        x = np.array([1, 2, 4, 5, 2])
+        w = np.array([0.2, 0.3, 0.5, 0.1, 0.2])
+        y = np.bincount(x, w, 8)
+        assert_array_equal(y, np.array([0, 0.2, 0.5, 0, 0.5, 0.1, 0, 0]))
+
+    def test_empty(self):
+        x = np.array([], dtype=int)
+        y = np.bincount(x)
+        assert_array_equal(x, y)
+
+    def test_empty_with_minlength(self):
+        x = np.array([], dtype=int)
+        y = np.bincount(x, minlength=5)
+        assert_array_equal(y, np.zeros(5, dtype=int))
+
+    @pytest.mark.parametrize('minlength', [0, 3])
+    def test_empty_list(self, minlength):
+        assert_array_equal(np.bincount([], minlength=minlength),
+                           np.zeros(minlength, dtype=int))
+
+    def test_with_incorrect_minlength(self):
+        x = np.array([], dtype=int)
+        assert_raises_regex(TypeError,
+                            "'str' object cannot be interpreted",
+                            lambda: np.bincount(x, minlength="foobar"))
+        assert_raises_regex(ValueError,
+                            "must not be negative",
+                            lambda: np.bincount(x, minlength=-1))
+
+        x = np.arange(5)
+        assert_raises_regex(TypeError,
+                            "'str' object cannot be interpreted",
+                            lambda: np.bincount(x, minlength="foobar"))
+        assert_raises_regex(ValueError,
+                            "must not be negative",
+                            lambda: np.bincount(x, minlength=-1))
+
+    @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+    def test_dtype_reference_leaks(self):
+        # gh-6805
+        intp_refcount = sys.getrefcount(np.dtype(np.intp))
+        double_refcount = sys.getrefcount(np.dtype(np.double))
+
+        for j in range(10):
+            np.bincount([1, 2, 3])
+        assert_equal(sys.getrefcount(np.dtype(np.intp)), intp_refcount)
+        assert_equal(sys.getrefcount(np.dtype(np.double)), double_refcount)
+
+        for j in range(10):
+            np.bincount([1, 2, 3], [4, 5, 6])
+        assert_equal(sys.getrefcount(np.dtype(np.intp)), intp_refcount)
+        assert_equal(sys.getrefcount(np.dtype(np.double)), double_refcount)
+
+    @pytest.mark.parametrize("vals", [[[2, 2]], 2])
+    def test_error_not_1d(self, vals):
+        # Test that values has to be 1-D (both as array and nested list)
+        vals_arr = np.asarray(vals)
+        with assert_raises(ValueError):
+            np.bincount(vals_arr)
+        with assert_raises(ValueError):
+            np.bincount(vals)
+
+    @pytest.mark.parametrize("dt", np.typecodes["AllInteger"])
+    def test_gh_28354(self, dt):
+        a = np.array([0, 1, 1, 3, 2, 1, 7], dtype=dt)
+        actual = np.bincount(a)
+        expected = [1, 3, 1, 1, 0, 0, 0, 1]
+        assert_array_equal(actual, expected)
+
+    def test_contiguous_handling(self):
+        # check for absence of hard crash
+        np.bincount(np.arange(10000)[::2])
+
+    def test_gh_28354_array_like(self):
+        class A:
+            def __array__(self):
+                return np.array([0, 1, 1, 3, 2, 1, 7], dtype=np.uint64)
+
+        a = A()
+        actual = np.bincount(a)
+        expected = [1, 3, 1, 1, 0, 0, 0, 1]
+        assert_array_equal(actual, expected)
+
+
+class TestInterp:
+
+    def test_exceptions(self):
+        assert_raises(ValueError, interp, 0, [], [])
+        assert_raises(ValueError, interp, 0, [0], [1, 2])
+        assert_raises(ValueError, interp, 0, [0, 1], [1, 2], period=0)
+        assert_raises(ValueError, interp, 0, [], [], period=360)
+        assert_raises(ValueError, interp, 0, [0], [1, 2], period=360)
+
+    def test_basic(self):
+        x = np.linspace(0, 1, 5)
+        y = np.linspace(0, 1, 5)
+        x0 = np.linspace(0, 1, 50)
+        assert_almost_equal(np.interp(x0, x, y), x0)
+
+    def test_right_left_behavior(self):
+        # Needs range of sizes to test different code paths.
+        # size ==1 is special cased, 1 < size < 5 is linear search, and
+        # size >= 5 goes through local search and possibly binary search.
+        for size in range(1, 10):
+            xp = np.arange(size, dtype=np.double)
+            yp = np.ones(size, dtype=np.double)
+            incpts = np.array([-1, 0, size - 1, size], dtype=np.double)
+            decpts = incpts[::-1]
+
+            incres = interp(incpts, xp, yp)
+            decres = interp(decpts, xp, yp)
+            inctgt = np.array([1, 1, 1, 1], dtype=float)
+            dectgt = inctgt[::-1]
+            assert_equal(incres, inctgt)
+            assert_equal(decres, dectgt)
+
+            incres = interp(incpts, xp, yp, left=0)
+            decres = interp(decpts, xp, yp, left=0)
+            inctgt = np.array([0, 1, 1, 1], dtype=float)
+            dectgt = inctgt[::-1]
+            assert_equal(incres, inctgt)
+            assert_equal(decres, dectgt)
+
+            incres = interp(incpts, xp, yp, right=2)
+            decres = interp(decpts, xp, yp, right=2)
+            inctgt = np.array([1, 1, 1, 2], dtype=float)
+            dectgt = inctgt[::-1]
+            assert_equal(incres, inctgt)
+            assert_equal(decres, dectgt)
+
+            incres = interp(incpts, xp, yp, left=0, right=2)
+            decres = interp(decpts, xp, yp, left=0, right=2)
+            inctgt = np.array([0, 1, 1, 2], dtype=float)
+            dectgt = inctgt[::-1]
+            assert_equal(incres, inctgt)
+            assert_equal(decres, dectgt)
+
+    def test_scalar_interpolation_point(self):
+        x = np.linspace(0, 1, 5)
+        y = np.linspace(0, 1, 5)
+        x0 = 0
+        assert_almost_equal(np.interp(x0, x, y), x0)
+        x0 = .3
+        assert_almost_equal(np.interp(x0, x, y), x0)
+        x0 = np.float32(.3)
+        assert_almost_equal(np.interp(x0, x, y), x0)
+        x0 = np.float64(.3)
+        assert_almost_equal(np.interp(x0, x, y), x0)
+        x0 = np.nan
+        assert_almost_equal(np.interp(x0, x, y), x0)
+
+    def test_non_finite_behavior_exact_x(self):
+        x = [1, 2, 2.5, 3, 4]
+        xp = [1, 2, 3, 4]
+        fp = [1, 2, np.inf, 4]
+        assert_almost_equal(np.interp(x, xp, fp), [1, 2, np.inf, np.inf, 4])
+        fp = [1, 2, np.nan, 4]
+        assert_almost_equal(np.interp(x, xp, fp), [1, 2, np.nan, np.nan, 4])
+
+    @pytest.fixture(params=[
+        np.float64,
+        lambda x: _make_complex(x, 0),
+        lambda x: _make_complex(0, x),
+        lambda x: _make_complex(x, np.multiply(x, -2))
+    ], ids=[
+        'real',
+        'complex-real',
+        'complex-imag',
+        'complex-both'
+    ])
+    def sc(self, request):
+        """ scale function used by the below tests """
+        return request.param
+
+    def test_non_finite_any_nan(self, sc):
+        """ test that nans are propagated """
+        assert_equal(np.interp(0.5, [np.nan,      1], sc([     0,     10])), sc(np.nan))
+        assert_equal(np.interp(0.5, [     0, np.nan], sc([     0,     10])), sc(np.nan))
+        assert_equal(np.interp(0.5, [     0,      1], sc([np.nan,     10])), sc(np.nan))
+        assert_equal(np.interp(0.5, [     0,      1], sc([     0, np.nan])), sc(np.nan))
+
+    def test_non_finite_inf(self, sc):
+        """ Test that interp between opposite infs gives nan """
+        inf = np.inf
+        nan = np.nan
+        assert_equal(np.interp(0.5, [-inf, +inf], sc([   0,   10])), sc(nan))
+        assert_equal(np.interp(0.5, [   0,    1], sc([-inf, +inf])), sc(nan))
+        assert_equal(np.interp(0.5, [   0,    1], sc([+inf, -inf])), sc(nan))
+
+        # unless the y values are equal
+        assert_equal(np.interp(0.5, [-np.inf, +np.inf], sc([     10,      10])), sc(10))
+
+    def test_non_finite_half_inf_xf(self, sc):
+        """ Test that interp where both axes have a bound at inf gives nan """
+        inf = np.inf
+        nan = np.nan
+        assert_equal(np.interp(0.5, [-inf,    1], sc([-inf,   10])), sc(nan))
+        assert_equal(np.interp(0.5, [-inf,    1], sc([+inf,   10])), sc(nan))
+        assert_equal(np.interp(0.5, [-inf,    1], sc([   0, -inf])), sc(nan))
+        assert_equal(np.interp(0.5, [-inf,    1], sc([   0, +inf])), sc(nan))
+        assert_equal(np.interp(0.5, [   0, +inf], sc([-inf,   10])), sc(nan))
+        assert_equal(np.interp(0.5, [   0, +inf], sc([+inf,   10])), sc(nan))
+        assert_equal(np.interp(0.5, [   0, +inf], sc([   0, -inf])), sc(nan))
+        assert_equal(np.interp(0.5, [   0, +inf], sc([   0, +inf])), sc(nan))
+
+    def test_non_finite_half_inf_x(self, sc):
+        """ Test interp where the x axis has a bound at inf """
+        assert_equal(np.interp(0.5, [-np.inf, -np.inf], sc([0, 10])), sc(10))
+        assert_equal(np.interp(0.5, [-np.inf, 1      ], sc([0, 10])), sc(10))  # noqa: E202
+        assert_equal(np.interp(0.5, [      0, +np.inf], sc([0, 10])), sc(0))
+        assert_equal(np.interp(0.5, [+np.inf, +np.inf], sc([0, 10])), sc(0))
+
+    def test_non_finite_half_inf_f(self, sc):
+        """ Test interp where the f axis has a bound at inf """
+        assert_equal(np.interp(0.5, [0, 1], sc([      0, -np.inf])), sc(-np.inf))
+        assert_equal(np.interp(0.5, [0, 1], sc([      0, +np.inf])), sc(+np.inf))
+        assert_equal(np.interp(0.5, [0, 1], sc([-np.inf,      10])), sc(-np.inf))
+        assert_equal(np.interp(0.5, [0, 1], sc([+np.inf,      10])), sc(+np.inf))
+        assert_equal(np.interp(0.5, [0, 1], sc([-np.inf, -np.inf])), sc(-np.inf))
+        assert_equal(np.interp(0.5, [0, 1], sc([+np.inf, +np.inf])), sc(+np.inf))
+
+    def test_complex_interp(self):
+        # test complex interpolation
+        x = np.linspace(0, 1, 5)
+        y = np.linspace(0, 1, 5) + (1 + np.linspace(0, 1, 5)) * 1.0j
+        x0 = 0.3
+        y0 = x0 + (1 + x0) * 1.0j
+        assert_almost_equal(np.interp(x0, x, y), y0)
+        # test complex left and right
+        x0 = -1
+        left = 2 + 3.0j
+        assert_almost_equal(np.interp(x0, x, y, left=left), left)
+        x0 = 2.0
+        right = 2 + 3.0j
+        assert_almost_equal(np.interp(x0, x, y, right=right), right)
+        # test complex non finite
+        x = [1, 2, 2.5, 3, 4]
+        xp = [1, 2, 3, 4]
+        fp = [1, 2 + 1j, np.inf, 4]
+        y = [1, 2 + 1j, np.inf + 0.5j, np.inf, 4]
+        assert_almost_equal(np.interp(x, xp, fp), y)
+        # test complex periodic
+        x = [-180, -170, -185, 185, -10, -5, 0, 365]
+        xp = [190, -190, 350, -350]
+        fp = [5 + 1.0j, 10 + 2j, 3 + 3j, 4 + 4j]
+        y = [7.5 + 1.5j, 5. + 1.0j, 8.75 + 1.75j, 6.25 + 1.25j, 3. + 3j, 3.25 + 3.25j,
+             3.5 + 3.5j, 3.75 + 3.75j]
+        assert_almost_equal(np.interp(x, xp, fp, period=360), y)
+
+    def test_zero_dimensional_interpolation_point(self):
+        x = np.linspace(0, 1, 5)
+        y = np.linspace(0, 1, 5)
+        x0 = np.array(.3)
+        assert_almost_equal(np.interp(x0, x, y), x0)
+
+        xp = np.array([0, 2, 4])
+        fp = np.array([1, -1, 1])
+
+        actual = np.interp(np.array(1), xp, fp)
+        assert_equal(actual, 0)
+        assert_(isinstance(actual, np.float64))
+
+        actual = np.interp(np.array(4.5), xp, fp, period=4)
+        assert_equal(actual, 0.5)
+        assert_(isinstance(actual, np.float64))
+
+    def test_if_len_x_is_small(self):
+        xp = np.arange(0, 10, 0.0001)
+        fp = np.sin(xp)
+        assert_almost_equal(np.interp(np.pi, xp, fp), 0.0)
+
+    def test_period(self):
+        x = [-180, -170, -185, 185, -10, -5, 0, 365]
+        xp = [190, -190, 350, -350]
+        fp = [5, 10, 3, 4]
+        y = [7.5, 5., 8.75, 6.25, 3., 3.25, 3.5, 3.75]
+        assert_almost_equal(np.interp(x, xp, fp, period=360), y)
+        x = np.array(x, order='F').reshape(2, -1)
+        y = np.array(y, order='C').reshape(2, -1)
+        assert_almost_equal(np.interp(x, xp, fp, period=360), y)
+
+
+quantile_methods = [
+    'inverted_cdf', 'averaged_inverted_cdf', 'closest_observation',
+    'interpolated_inverted_cdf', 'hazen', 'weibull', 'linear',
+    'median_unbiased', 'normal_unbiased', 'nearest', 'lower', 'higher',
+    'midpoint']
+
+# Note: Technically, averaged_inverted_cdf and midpoint are not interpolated.
+# but NumPy doesn't currently make a difference (at least w.r.t. to promotion).
+interpolating_quantile_methods = [
+    'averaged_inverted_cdf', 'interpolated_inverted_cdf', 'hazen', 'weibull',
+    'linear', 'median_unbiased', 'normal_unbiased', 'midpoint']
+
+methods_supporting_weights = ["inverted_cdf"]
+
+
+class TestPercentile:
+
+    def test_basic(self):
+        x = np.arange(8) * 0.5
+        assert_equal(np.percentile(x, 0), 0.)
+        assert_equal(np.percentile(x, 100), 3.5)
+        assert_equal(np.percentile(x, 50), 1.75)
+        x[1] = np.nan
+        assert_equal(np.percentile(x, 0), np.nan)
+        assert_equal(np.percentile(x, 0, method='nearest'), np.nan)
+        assert_equal(np.percentile(x, 0, method='inverted_cdf'), np.nan)
+        assert_equal(
+            np.percentile(x, 0, method='inverted_cdf',
+                          weights=np.ones_like(x)),
+            np.nan,
+        )
+
+    def test_fraction(self):
+        x = [Fraction(i, 2) for i in range(8)]
+
+        p = np.percentile(x, Fraction(0))
+        assert_equal(p, Fraction(0))
+        assert_equal(type(p), Fraction)
+
+        p = np.percentile(x, Fraction(100))
+        assert_equal(p, Fraction(7, 2))
+        assert_equal(type(p), Fraction)
+
+        p = np.percentile(x, Fraction(50))
+        assert_equal(p, Fraction(7, 4))
+        assert_equal(type(p), Fraction)
+
+        p = np.percentile(x, [Fraction(50)])
+        assert_equal(p, np.array([Fraction(7, 4)]))
+        assert_equal(type(p), np.ndarray)
+
+    def test_api(self):
+        d = np.ones(5)
+        np.percentile(d, 5, None, None, False)
+        np.percentile(d, 5, None, None, False, 'linear')
+        o = np.ones((1,))
+        np.percentile(d, 5, None, o, False, 'linear')
+
+    def test_complex(self):
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='G')
+        assert_raises(TypeError, np.percentile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='D')
+        assert_raises(TypeError, np.percentile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='F')
+        assert_raises(TypeError, np.percentile, arr_c, 0.5)
+
+    def test_2D(self):
+        x = np.array([[1, 1, 1],
+                      [1, 1, 1],
+                      [4, 4, 3],
+                      [1, 1, 1],
+                      [1, 1, 1]])
+        assert_array_equal(np.percentile(x, 50, axis=0), [1, 1, 1])
+
+    @pytest.mark.parametrize("dtype", np.typecodes["Float"])
+    def test_linear_nan_1D(self, dtype):
+        # METHOD 1 of H&F
+        arr = np.asarray([15.0, np.nan, 35.0, 40.0, 50.0], dtype=dtype)
+        res = np.percentile(
+            arr,
+            40.0,
+            method="linear")
+        np.testing.assert_equal(res, np.nan)
+        np.testing.assert_equal(res.dtype, arr.dtype)
+
+    H_F_TYPE_CODES = [(int_type, np.float64)
+                      for int_type in np.typecodes["AllInteger"]
+                      ] + [(np.float16, np.float16),
+                           (np.float32, np.float32),
+                           (np.float64, np.float64),
+                           (np.longdouble, np.longdouble),
+                           (np.dtype("O"), np.float64)]
+
+    @pytest.mark.parametrize(["function", "quantile"],
+                             [(np.quantile, 0.4),
+                              (np.percentile, 40.0)])
+    @pytest.mark.parametrize(["input_dtype", "expected_dtype"], H_F_TYPE_CODES)
+    @pytest.mark.parametrize(["method", "weighted", "expected"],
+                              [("inverted_cdf", False, 20),
+                              ("inverted_cdf", True, 20),
+                              ("averaged_inverted_cdf", False, 27.5),
+                              ("closest_observation", False, 20),
+                              ("interpolated_inverted_cdf", False, 20),
+                              ("hazen", False, 27.5),
+                              ("weibull", False, 26),
+                              ("linear", False, 29),
+                              ("median_unbiased", False, 27),
+                              ("normal_unbiased", False, 27.125),
+                               ])
+    def test_linear_interpolation(self,
+                                  function,
+                                  quantile,
+                                  method,
+                                  weighted,
+                                  expected,
+                                  input_dtype,
+                                  expected_dtype):
+        expected_dtype = np.dtype(expected_dtype)
+
+        arr = np.asarray([15.0, 20.0, 35.0, 40.0, 50.0], dtype=input_dtype)
+        weights = np.ones_like(arr) if weighted else None
+        if input_dtype is np.longdouble:
+            if function is np.quantile:
+                # 0.4 is not exactly representable and it matters
+                # for "averaged_inverted_cdf", so we need to cheat.
+                quantile = input_dtype("0.4")
+            # We want to use nulp, but that does not work for longdouble
+            test_function = np.testing.assert_almost_equal
+        else:
+            test_function = np.testing.assert_array_almost_equal_nulp
+
+        actual = function(arr, quantile, method=method, weights=weights)
+
+        test_function(actual, expected_dtype.type(expected))
+
+        if method in ["inverted_cdf", "closest_observation"]:
+            if input_dtype == "O":
+                np.testing.assert_equal(np.asarray(actual).dtype, np.float64)
+            else:
+                np.testing.assert_equal(np.asarray(actual).dtype,
+                                        np.dtype(input_dtype))
+        else:
+            np.testing.assert_equal(np.asarray(actual).dtype,
+                                    np.dtype(expected_dtype))
+
+    TYPE_CODES = np.typecodes["AllInteger"] + np.typecodes["Float"] + "O"
+
+    @pytest.mark.parametrize("dtype", TYPE_CODES)
+    def test_lower_higher(self, dtype):
+        assert_equal(np.percentile(np.arange(10, dtype=dtype), 50,
+                                   method='lower'), 4)
+        assert_equal(np.percentile(np.arange(10, dtype=dtype), 50,
+                                   method='higher'), 5)
+
+    @pytest.mark.parametrize("dtype", TYPE_CODES)
+    def test_midpoint(self, dtype):
+        assert_equal(np.percentile(np.arange(10, dtype=dtype), 51,
+                                   method='midpoint'), 4.5)
+        assert_equal(np.percentile(np.arange(9, dtype=dtype) + 1, 50,
+                                   method='midpoint'), 5)
+        assert_equal(np.percentile(np.arange(11, dtype=dtype), 51,
+                                   method='midpoint'), 5.5)
+        assert_equal(np.percentile(np.arange(11, dtype=dtype), 50,
+                                   method='midpoint'), 5)
+
+    @pytest.mark.parametrize("dtype", TYPE_CODES)
+    def test_nearest(self, dtype):
+        assert_equal(np.percentile(np.arange(10, dtype=dtype), 51,
+                                   method='nearest'), 5)
+        assert_equal(np.percentile(np.arange(10, dtype=dtype), 49,
+                                   method='nearest'), 4)
+
+    def test_linear_interpolation_extrapolation(self):
+        arr = np.random.rand(5)
+
+        actual = np.percentile(arr, 100)
+        np.testing.assert_equal(actual, arr.max())
+
+        actual = np.percentile(arr, 0)
+        np.testing.assert_equal(actual, arr.min())
+
+    def test_sequence(self):
+        x = np.arange(8) * 0.5
+        assert_equal(np.percentile(x, [0, 100, 50]), [0, 3.5, 1.75])
+
+    def test_axis(self):
+        x = np.arange(12).reshape(3, 4)
+
+        assert_equal(np.percentile(x, (25, 50, 100)), [2.75, 5.5, 11.0])
+
+        r0 = [[2, 3, 4, 5], [4, 5, 6, 7], [8, 9, 10, 11]]
+        assert_equal(np.percentile(x, (25, 50, 100), axis=0), r0)
+
+        r1 = [[0.75, 1.5, 3], [4.75, 5.5, 7], [8.75, 9.5, 11]]
+        assert_equal(np.percentile(x, (25, 50, 100), axis=1), np.array(r1).T)
+
+        # ensure qth axis is always first as with np.array(old_percentile(..))
+        x = np.arange(3 * 4 * 5 * 6).reshape(3, 4, 5, 6)
+        assert_equal(np.percentile(x, (25, 50)).shape, (2,))
+        assert_equal(np.percentile(x, (25, 50, 75)).shape, (3,))
+        assert_equal(np.percentile(x, (25, 50), axis=0).shape, (2, 4, 5, 6))
+        assert_equal(np.percentile(x, (25, 50), axis=1).shape, (2, 3, 5, 6))
+        assert_equal(np.percentile(x, (25, 50), axis=2).shape, (2, 3, 4, 6))
+        assert_equal(np.percentile(x, (25, 50), axis=3).shape, (2, 3, 4, 5))
+        assert_equal(
+            np.percentile(x, (25, 50, 75), axis=1).shape, (3, 3, 5, 6))
+        assert_equal(np.percentile(x, (25, 50),
+                                   method="higher").shape, (2,))
+        assert_equal(np.percentile(x, (25, 50, 75),
+                                   method="higher").shape, (3,))
+        assert_equal(np.percentile(x, (25, 50), axis=0,
+                                   method="higher").shape, (2, 4, 5, 6))
+        assert_equal(np.percentile(x, (25, 50), axis=1,
+                                   method="higher").shape, (2, 3, 5, 6))
+        assert_equal(np.percentile(x, (25, 50), axis=2,
+                                   method="higher").shape, (2, 3, 4, 6))
+        assert_equal(np.percentile(x, (25, 50), axis=3,
+                                   method="higher").shape, (2, 3, 4, 5))
+        assert_equal(np.percentile(x, (25, 50, 75), axis=1,
+                                   method="higher").shape, (3, 3, 5, 6))
+
+    def test_scalar_q(self):
+        # test for no empty dimensions for compatibility with old percentile
+        x = np.arange(12).reshape(3, 4)
+        assert_equal(np.percentile(x, 50), 5.5)
+        assert_(np.isscalar(np.percentile(x, 50)))
+        r0 = np.array([4., 5., 6., 7.])
+        assert_equal(np.percentile(x, 50, axis=0), r0)
+        assert_equal(np.percentile(x, 50, axis=0).shape, r0.shape)
+        r1 = np.array([1.5, 5.5, 9.5])
+        assert_almost_equal(np.percentile(x, 50, axis=1), r1)
+        assert_equal(np.percentile(x, 50, axis=1).shape, r1.shape)
+
+        out = np.empty(1)
+        assert_equal(np.percentile(x, 50, out=out), 5.5)
+        assert_equal(out, 5.5)
+        out = np.empty(4)
+        assert_equal(np.percentile(x, 50, axis=0, out=out), r0)
+        assert_equal(out, r0)
+        out = np.empty(3)
+        assert_equal(np.percentile(x, 50, axis=1, out=out), r1)
+        assert_equal(out, r1)
+
+        # test for no empty dimensions for compatibility with old percentile
+        x = np.arange(12).reshape(3, 4)
+        assert_equal(np.percentile(x, 50, method='lower'), 5.)
+        assert_(np.isscalar(np.percentile(x, 50)))
+        r0 = np.array([4., 5., 6., 7.])
+        c0 = np.percentile(x, 50, method='lower', axis=0)
+        assert_equal(c0, r0)
+        assert_equal(c0.shape, r0.shape)
+        r1 = np.array([1., 5., 9.])
+        c1 = np.percentile(x, 50, method='lower', axis=1)
+        assert_almost_equal(c1, r1)
+        assert_equal(c1.shape, r1.shape)
+
+        out = np.empty((), dtype=x.dtype)
+        c = np.percentile(x, 50, method='lower', out=out)
+        assert_equal(c, 5)
+        assert_equal(out, 5)
+        out = np.empty(4, dtype=x.dtype)
+        c = np.percentile(x, 50, method='lower', axis=0, out=out)
+        assert_equal(c, r0)
+        assert_equal(out, r0)
+        out = np.empty(3, dtype=x.dtype)
+        c = np.percentile(x, 50, method='lower', axis=1, out=out)
+        assert_equal(c, r1)
+        assert_equal(out, r1)
+
+    def test_exception(self):
+        assert_raises(ValueError, np.percentile, [1, 2], 56,
+                      method='foobar')
+        assert_raises(ValueError, np.percentile, [1], 101)
+        assert_raises(ValueError, np.percentile, [1], -1)
+        assert_raises(ValueError, np.percentile, [1], list(range(50)) + [101])
+        assert_raises(ValueError, np.percentile, [1], list(range(50)) + [-0.1])
+
+    def test_percentile_list(self):
+        assert_equal(np.percentile([1, 2, 3], 0), 1)
+
+    @pytest.mark.parametrize(
+        "percentile, with_weights",
+        [
+            (np.percentile, False),
+            (partial(np.percentile, method="inverted_cdf"), True),
+        ]
+    )
+    def test_percentile_out(self, percentile, with_weights):
+        out_dtype = int if with_weights else float
+        x = np.array([1, 2, 3])
+        y = np.zeros((3,), dtype=out_dtype)
+        p = (1, 2, 3)
+        weights = np.ones_like(x) if with_weights else None
+        r = percentile(x, p, out=y, weights=weights)
+        assert r is y
+        assert_equal(percentile(x, p, weights=weights), y)
+
+        x = np.array([[1, 2, 3],
+                      [4, 5, 6]])
+        y = np.zeros((3, 3), dtype=out_dtype)
+        weights = np.ones_like(x) if with_weights else None
+        r = percentile(x, p, axis=0, out=y, weights=weights)
+        assert r is y
+        assert_equal(percentile(x, p, weights=weights, axis=0), y)
+
+        y = np.zeros((3, 2), dtype=out_dtype)
+        percentile(x, p, axis=1, out=y, weights=weights)
+        assert_equal(percentile(x, p, weights=weights, axis=1), y)
+
+        x = np.arange(12).reshape(3, 4)
+        # q.dim > 1, float
+        if with_weights:
+            r0 = np.array([[0, 1, 2, 3], [4, 5, 6, 7]])
+        else:
+            r0 = np.array([[2., 3., 4., 5.], [4., 5., 6., 7.]])
+        out = np.empty((2, 4), dtype=out_dtype)
+        weights = np.ones_like(x) if with_weights else None
+        assert_equal(
+            percentile(x, (25, 50), axis=0, out=out, weights=weights), r0
+        )
+        assert_equal(out, r0)
+        r1 = np.array([[0.75, 4.75, 8.75], [1.5, 5.5, 9.5]])
+        out = np.empty((2, 3))
+        assert_equal(np.percentile(x, (25, 50), axis=1, out=out), r1)
+        assert_equal(out, r1)
+
+        # q.dim > 1, int
+        r0 = np.array([[0, 1, 2, 3], [4, 5, 6, 7]])
+        out = np.empty((2, 4), dtype=x.dtype)
+        c = np.percentile(x, (25, 50), method='lower', axis=0, out=out)
+        assert_equal(c, r0)
+        assert_equal(out, r0)
+        r1 = np.array([[0, 4, 8], [1, 5, 9]])
+        out = np.empty((2, 3), dtype=x.dtype)
+        c = np.percentile(x, (25, 50), method='lower', axis=1, out=out)
+        assert_equal(c, r1)
+        assert_equal(out, r1)
+
+    def test_percentile_empty_dim(self):
+        # empty dims are preserved
+        d = np.arange(11 * 2).reshape(11, 1, 2, 1)
+        assert_array_equal(np.percentile(d, 50, axis=0).shape, (1, 2, 1))
+        assert_array_equal(np.percentile(d, 50, axis=1).shape, (11, 2, 1))
+        assert_array_equal(np.percentile(d, 50, axis=2).shape, (11, 1, 1))
+        assert_array_equal(np.percentile(d, 50, axis=3).shape, (11, 1, 2))
+        assert_array_equal(np.percentile(d, 50, axis=-1).shape, (11, 1, 2))
+        assert_array_equal(np.percentile(d, 50, axis=-2).shape, (11, 1, 1))
+        assert_array_equal(np.percentile(d, 50, axis=-3).shape, (11, 2, 1))
+        assert_array_equal(np.percentile(d, 50, axis=-4).shape, (1, 2, 1))
+
+        assert_array_equal(np.percentile(d, 50, axis=2,
+                                         method='midpoint').shape,
+                           (11, 1, 1))
+        assert_array_equal(np.percentile(d, 50, axis=-2,
+                                         method='midpoint').shape,
+                           (11, 1, 1))
+
+        assert_array_equal(np.array(np.percentile(d, [10, 50], axis=0)).shape,
+                           (2, 1, 2, 1))
+        assert_array_equal(np.array(np.percentile(d, [10, 50], axis=1)).shape,
+                           (2, 11, 2, 1))
+        assert_array_equal(np.array(np.percentile(d, [10, 50], axis=2)).shape,
+                           (2, 11, 1, 1))
+        assert_array_equal(np.array(np.percentile(d, [10, 50], axis=3)).shape,
+                           (2, 11, 1, 2))
+
+    def test_percentile_no_overwrite(self):
+        a = np.array([2, 3, 4, 1])
+        np.percentile(a, [50], overwrite_input=False)
+        assert_equal(a, np.array([2, 3, 4, 1]))
+
+        a = np.array([2, 3, 4, 1])
+        np.percentile(a, [50])
+        assert_equal(a, np.array([2, 3, 4, 1]))
+
+    def test_no_p_overwrite(self):
+        p = np.linspace(0., 100., num=5)
+        np.percentile(np.arange(100.), p, method="midpoint")
+        assert_array_equal(p, np.linspace(0., 100., num=5))
+        p = np.linspace(0., 100., num=5).tolist()
+        np.percentile(np.arange(100.), p, method="midpoint")
+        assert_array_equal(p, np.linspace(0., 100., num=5).tolist())
+
+    def test_percentile_overwrite(self):
+        a = np.array([2, 3, 4, 1])
+        b = np.percentile(a, [50], overwrite_input=True)
+        assert_equal(b, np.array([2.5]))
+
+        b = np.percentile([2, 3, 4, 1], [50], overwrite_input=True)
+        assert_equal(b, np.array([2.5]))
+
+    def test_extended_axis(self):
+        o = np.random.normal(size=(71, 23))
+        x = np.dstack([o] * 10)
+        assert_equal(np.percentile(x, 30, axis=(0, 1)), np.percentile(o, 30))
+        x = np.moveaxis(x, -1, 0)
+        assert_equal(np.percentile(x, 30, axis=(-2, -1)), np.percentile(o, 30))
+        x = x.swapaxes(0, 1).copy()
+        assert_equal(np.percentile(x, 30, axis=(0, -1)), np.percentile(o, 30))
+        x = x.swapaxes(0, 1).copy()
+
+        assert_equal(np.percentile(x, [25, 60], axis=(0, 1, 2)),
+                     np.percentile(x, [25, 60], axis=None))
+        assert_equal(np.percentile(x, [25, 60], axis=(0,)),
+                     np.percentile(x, [25, 60], axis=0))
+
+        d = np.arange(3 * 5 * 7 * 11).reshape((3, 5, 7, 11))
+        np.random.shuffle(d.ravel())
+        assert_equal(np.percentile(d, 25, axis=(0, 1, 2))[0],
+                     np.percentile(d[:, :, :, 0].flatten(), 25))
+        assert_equal(np.percentile(d, [10, 90], axis=(0, 1, 3))[:, 1],
+                     np.percentile(d[:, :, 1, :].flatten(), [10, 90]))
+        assert_equal(np.percentile(d, 25, axis=(3, 1, -4))[2],
+                     np.percentile(d[:, :, 2, :].flatten(), 25))
+        assert_equal(np.percentile(d, 25, axis=(3, 1, 2))[2],
+                     np.percentile(d[2, :, :, :].flatten(), 25))
+        assert_equal(np.percentile(d, 25, axis=(3, 2))[2, 1],
+                     np.percentile(d[2, 1, :, :].flatten(), 25))
+        assert_equal(np.percentile(d, 25, axis=(1, -2))[2, 1],
+                     np.percentile(d[2, :, :, 1].flatten(), 25))
+        assert_equal(np.percentile(d, 25, axis=(1, 3))[2, 2],
+                     np.percentile(d[2, :, 2, :].flatten(), 25))
+
+    def test_extended_axis_invalid(self):
+        d = np.ones((3, 5, 7, 11))
+        assert_raises(AxisError, np.percentile, d, axis=-5, q=25)
+        assert_raises(AxisError, np.percentile, d, axis=(0, -5), q=25)
+        assert_raises(AxisError, np.percentile, d, axis=4, q=25)
+        assert_raises(AxisError, np.percentile, d, axis=(0, 4), q=25)
+        # each of these refers to the same axis twice
+        assert_raises(ValueError, np.percentile, d, axis=(1, 1), q=25)
+        assert_raises(ValueError, np.percentile, d, axis=(-1, -1), q=25)
+        assert_raises(ValueError, np.percentile, d, axis=(3, -1), q=25)
+
+    def test_keepdims(self):
+        d = np.ones((3, 5, 7, 11))
+        assert_equal(np.percentile(d, 7, axis=None, keepdims=True).shape,
+                     (1, 1, 1, 1))
+        assert_equal(np.percentile(d, 7, axis=(0, 1), keepdims=True).shape,
+                     (1, 1, 7, 11))
+        assert_equal(np.percentile(d, 7, axis=(0, 3), keepdims=True).shape,
+                     (1, 5, 7, 1))
+        assert_equal(np.percentile(d, 7, axis=(1,), keepdims=True).shape,
+                     (3, 1, 7, 11))
+        assert_equal(np.percentile(d, 7, (0, 1, 2, 3), keepdims=True).shape,
+                     (1, 1, 1, 1))
+        assert_equal(np.percentile(d, 7, axis=(0, 1, 3), keepdims=True).shape,
+                     (1, 1, 7, 1))
+
+        assert_equal(np.percentile(d, [1, 7], axis=(0, 1, 3),
+                                   keepdims=True).shape, (2, 1, 1, 7, 1))
+        assert_equal(np.percentile(d, [1, 7], axis=(0, 3),
+                                   keepdims=True).shape, (2, 1, 5, 7, 1))
+
+    @pytest.mark.parametrize('q', [7, [1, 7]])
+    @pytest.mark.parametrize(
+        argnames='axis',
+        argvalues=[
+            None,
+            1,
+            (1,),
+            (0, 1),
+            (-3, -1),
+        ]
+    )
+    def test_keepdims_out(self, q, axis):
+        d = np.ones((3, 5, 7, 11))
+        if axis is None:
+            shape_out = (1,) * d.ndim
+        else:
+            axis_norm = normalize_axis_tuple(axis, d.ndim)
+            shape_out = tuple(
+                1 if i in axis_norm else d.shape[i] for i in range(d.ndim))
+        shape_out = np.shape(q) + shape_out
+
+        out = np.empty(shape_out)
+        result = np.percentile(d, q, axis=axis, keepdims=True, out=out)
+        assert result is out
+        assert_equal(result.shape, shape_out)
+
+    def test_out(self):
+        o = np.zeros((4,))
+        d = np.ones((3, 4))
+        assert_equal(np.percentile(d, 0, 0, out=o), o)
+        assert_equal(np.percentile(d, 0, 0, method='nearest', out=o), o)
+        o = np.zeros((3,))
+        assert_equal(np.percentile(d, 1, 1, out=o), o)
+        assert_equal(np.percentile(d, 1, 1, method='nearest', out=o), o)
+
+        o = np.zeros(())
+        assert_equal(np.percentile(d, 2, out=o), o)
+        assert_equal(np.percentile(d, 2, method='nearest', out=o), o)
+
+    @pytest.mark.parametrize("method, weighted", [
+        ("linear", False),
+        ("nearest", False),
+        ("inverted_cdf", False),
+        ("inverted_cdf", True),
+    ])
+    def test_out_nan(self, method, weighted):
+        if weighted:
+            kwargs = {"weights": np.ones((3, 4)), "method": method}
+        else:
+            kwargs = {"method": method}
+        with warnings.catch_warnings(record=True):
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            o = np.zeros((4,))
+            d = np.ones((3, 4))
+            d[2, 1] = np.nan
+            assert_equal(np.percentile(d, 0, 0, out=o, **kwargs), o)
+
+            o = np.zeros((3,))
+            assert_equal(np.percentile(d, 1, 1, out=o, **kwargs), o)
+
+            o = np.zeros(())
+            assert_equal(np.percentile(d, 1, out=o, **kwargs), o)
+
+    def test_nan_behavior(self):
+        a = np.arange(24, dtype=float)
+        a[2] = np.nan
+        assert_equal(np.percentile(a, 0.3), np.nan)
+        assert_equal(np.percentile(a, 0.3, axis=0), np.nan)
+        assert_equal(np.percentile(a, [0.3, 0.6], axis=0),
+                     np.array([np.nan] * 2))
+
+        a = np.arange(24, dtype=float).reshape(2, 3, 4)
+        a[1, 2, 3] = np.nan
+        a[1, 1, 2] = np.nan
+
+        # no axis
+        assert_equal(np.percentile(a, 0.3), np.nan)
+        assert_equal(np.percentile(a, 0.3).ndim, 0)
+
+        # axis0 zerod
+        b = np.percentile(np.arange(24, dtype=float).reshape(2, 3, 4), 0.3, 0)
+        b[2, 3] = np.nan
+        b[1, 2] = np.nan
+        assert_equal(np.percentile(a, 0.3, 0), b)
+
+        # axis0 not zerod
+        b = np.percentile(np.arange(24, dtype=float).reshape(2, 3, 4),
+                          [0.3, 0.6], 0)
+        b[:, 2, 3] = np.nan
+        b[:, 1, 2] = np.nan
+        assert_equal(np.percentile(a, [0.3, 0.6], 0), b)
+
+        # axis1 zerod
+        b = np.percentile(np.arange(24, dtype=float).reshape(2, 3, 4), 0.3, 1)
+        b[1, 3] = np.nan
+        b[1, 2] = np.nan
+        assert_equal(np.percentile(a, 0.3, 1), b)
+        # axis1 not zerod
+        b = np.percentile(
+            np.arange(24, dtype=float).reshape(2, 3, 4), [0.3, 0.6], 1)
+        b[:, 1, 3] = np.nan
+        b[:, 1, 2] = np.nan
+        assert_equal(np.percentile(a, [0.3, 0.6], 1), b)
+
+        # axis02 zerod
+        b = np.percentile(
+            np.arange(24, dtype=float).reshape(2, 3, 4), 0.3, (0, 2))
+        b[1] = np.nan
+        b[2] = np.nan
+        assert_equal(np.percentile(a, 0.3, (0, 2)), b)
+        # axis02 not zerod
+        b = np.percentile(np.arange(24, dtype=float).reshape(2, 3, 4),
+                          [0.3, 0.6], (0, 2))
+        b[:, 1] = np.nan
+        b[:, 2] = np.nan
+        assert_equal(np.percentile(a, [0.3, 0.6], (0, 2)), b)
+        # axis02 not zerod with method='nearest'
+        b = np.percentile(np.arange(24, dtype=float).reshape(2, 3, 4),
+                          [0.3, 0.6], (0, 2), method='nearest')
+        b[:, 1] = np.nan
+        b[:, 2] = np.nan
+        assert_equal(np.percentile(
+            a, [0.3, 0.6], (0, 2), method='nearest'), b)
+
+    def test_nan_q(self):
+        # GH18830
+        with pytest.raises(ValueError, match="Percentiles must be in"):
+            np.percentile([1, 2, 3, 4.0], np.nan)
+        with pytest.raises(ValueError, match="Percentiles must be in"):
+            np.percentile([1, 2, 3, 4.0], [np.nan])
+        q = np.linspace(1.0, 99.0, 16)
+        q[0] = np.nan
+        with pytest.raises(ValueError, match="Percentiles must be in"):
+            np.percentile([1, 2, 3, 4.0], q)
+
+    @pytest.mark.parametrize("dtype", ["m8[D]", "M8[s]"])
+    @pytest.mark.parametrize("pos", [0, 23, 10])
+    def test_nat_basic(self, dtype, pos):
+        # TODO: Note that times have dubious rounding as of fixing NaTs!
+        # NaT and NaN should behave the same, do basic tests for NaT:
+        a = np.arange(0, 24, dtype=dtype)
+        a[pos] = "NaT"
+        res = np.percentile(a, 30)
+        assert res.dtype == dtype
+        assert np.isnat(res)
+        res = np.percentile(a, [30, 60])
+        assert res.dtype == dtype
+        assert np.isnat(res).all()
+
+        a = np.arange(0, 24 * 3, dtype=dtype).reshape(-1, 3)
+        a[pos, 1] = "NaT"
+        res = np.percentile(a, 30, axis=0)
+        assert_array_equal(np.isnat(res), [False, True, False])
+
+    @pytest.mark.parametrize("qtype", [np.float16, np.float32])
+    @pytest.mark.parametrize("method", quantile_methods)
+    def test_percentile_gh_29003(self, qtype, method):
+        # test that with float16 or float32 input we do not get overflow
+        zero = qtype(0)
+        one = qtype(1)
+        a = np.zeros(65521, qtype)
+        a[:20_000] = one
+        z = np.percentile(a, 50, method=method)
+        assert z == zero
+        assert z.dtype == a.dtype
+        z = np.percentile(a, 99, method=method)
+        assert z == one
+        assert z.dtype == a.dtype
+
+    def test_percentile_gh_29003_Fraction(self):
+        zero = Fraction(0)
+        one = Fraction(1)
+        a = np.array([zero] * 65521)
+        a[:20_000] = one
+        z = np.percentile(a, 50)
+        assert z == zero
+        z = np.percentile(a, Fraction(50))
+        assert z == zero
+        assert np.array(z).dtype == a.dtype
+
+        z = np.percentile(a, 99)
+        assert z == one
+        # test that with only Fraction input the return type is a Fraction
+        z = np.percentile(a, Fraction(99))
+        assert z == one
+        assert np.array(z).dtype == a.dtype
+
+    @pytest.mark.parametrize("method", interpolating_quantile_methods)
+    @pytest.mark.parametrize("q", [50, 10.0])
+    def test_q_weak_promotion(self, method, q):
+        a = np.array([1, 2, 3, 4, 5], dtype=np.float32)
+        value = np.percentile(a, q, method=method)
+        assert value.dtype == np.float32
+
+    @pytest.mark.parametrize("method", interpolating_quantile_methods)
+    def test_q_strong_promotion(self, method):
+        # For interpolating methods, the dtype should be float64, for
+        # discrete ones the original int8.  (technically, mid-point has no
+        # reason to take into account `q`, but does so anyway.)
+        a = np.array([1, 2, 3, 4, 5], dtype=np.float32)
+        value = np.percentile(a, np.float64(50), method=method)
+        assert value.dtype == np.float64
+        # Check that we don't do accidental promotion either:
+        value = np.percentile(a, np.float32(50), method=method)
+        assert value.dtype == np.float32
+
+
+class TestQuantile:
+    # most of this is already tested by TestPercentile
+
+    def V(self, x, y, alpha):
+        # Identification function used in several tests.
+        return (x >= y) - alpha
+
+    def test_max_ulp(self):
+        x = [0.0, 0.2, 0.4]
+        a = np.quantile(x, 0.45)
+        # The default linear method would result in 0 + 0.2 * (0.45/2) = 0.18.
+        # 0.18 is not exactly representable and the formula leads to a 1 ULP
+        # different result. Ensure it is this exact within 1 ULP, see gh-20331.
+        np.testing.assert_array_max_ulp(a, 0.18, maxulp=1)
+
+    def test_basic(self):
+        x = np.arange(8) * 0.5
+        assert_equal(np.quantile(x, 0), 0.)
+        assert_equal(np.quantile(x, 1), 3.5)
+        assert_equal(np.quantile(x, 0.5), 1.75)
+
+    def test_correct_quantile_value(self):
+        a = np.array([True])
+        tf_quant = np.quantile(True, False)
+        assert_equal(tf_quant, a[0])
+        assert_equal(type(tf_quant), a.dtype)
+        a = np.array([False, True, True])
+        quant_res = np.quantile(a, a)
+        assert_array_equal(quant_res, a)
+        assert_equal(quant_res.dtype, a.dtype)
+
+    def test_fraction(self):
+        # fractional input, integral quantile
+        x = [Fraction(i, 2) for i in range(8)]
+        q = np.quantile(x, 0)
+        assert_equal(q, 0)
+        assert_equal(type(q), Fraction)
+
+        q = np.quantile(x, 1)
+        assert_equal(q, Fraction(7, 2))
+        assert_equal(type(q), Fraction)
+
+        q = np.quantile(x, .5)
+        assert_equal(q, 1.75)
+        assert isinstance(q, float)
+
+        q = np.quantile(x, Fraction(1, 2))
+        assert_equal(q, Fraction(7, 4))
+        assert_equal(type(q), Fraction)
+
+        q = np.quantile(x, [Fraction(1, 2)])
+        assert_equal(q, np.array([Fraction(7, 4)]))
+        assert_equal(type(q), np.ndarray)
+
+        q = np.quantile(x, [[Fraction(1, 2)]])
+        assert_equal(q, np.array([[Fraction(7, 4)]]))
+        assert_equal(type(q), np.ndarray)
+
+        # repeat with integral input but fractional quantile
+        x = np.arange(8)
+        assert_equal(np.quantile(x, Fraction(1, 2)), Fraction(7, 2))
+
+    def test_complex(self):
+        # gh-22652
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='G')
+        assert_raises(TypeError, np.quantile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='D')
+        assert_raises(TypeError, np.quantile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='F')
+        assert_raises(TypeError, np.quantile, arr_c, 0.5)
+
+    def test_no_p_overwrite(self):
+        # this is worth retesting, because quantile does not make a copy
+        p0 = np.array([0, 0.75, 0.25, 0.5, 1.0])
+        p = p0.copy()
+        np.quantile(np.arange(100.), p, method="midpoint")
+        assert_array_equal(p, p0)
+
+        p0 = p0.tolist()
+        p = p.tolist()
+        np.quantile(np.arange(100.), p, method="midpoint")
+        assert_array_equal(p, p0)
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+    def test_quantile_preserve_int_type(self, dtype):
+        res = np.quantile(np.array([1, 2], dtype=dtype), [0.5],
+                          method="nearest")
+        assert res.dtype == dtype
+
+    @pytest.mark.parametrize("method", quantile_methods)
+    def test_q_zero_one(self, method):
+        # gh-24710
+        arr = [10, 11, 12]
+        quantile = np.quantile(arr, q=[0, 1], method=method)
+        assert_equal(quantile, np.array([10, 12]))
+
+    @pytest.mark.parametrize("method", quantile_methods)
+    def test_quantile_monotonic(self, method):
+        # GH 14685
+        # test that the return value of quantile is monotonic if p0 is ordered
+        # Also tests that the boundary values are not mishandled.
+        p0 = np.linspace(0, 1, 101)
+        quantile = np.quantile(np.array([0, 1, 1, 2, 2, 3, 3, 4, 5, 5, 1, 1, 9, 9, 9,
+                                         8, 8, 7]) * 0.1, p0, method=method)
+        assert_equal(np.sort(quantile), quantile)
+
+        # Also test one where the number of data points is clearly divisible:
+        quantile = np.quantile([0., 1., 2., 3.], p0, method=method)
+        assert_equal(np.sort(quantile), quantile)
+
+    @hypothesis.given(
+            arr=arrays(dtype=np.float64,
+                       shape=st.integers(min_value=3, max_value=1000),
+                       elements=st.floats(allow_infinity=False, allow_nan=False,
+                                          min_value=-1e300, max_value=1e300)))
+    def test_quantile_monotonic_hypo(self, arr):
+        p0 = np.arange(0, 1, 0.01)
+        quantile = np.quantile(arr, p0)
+        assert_equal(np.sort(quantile), quantile)
+
+    def test_quantile_scalar_nan(self):
+        a = np.array([[10., 7., 4.], [3., 2., 1.]])
+        a[0][1] = np.nan
+        actual = np.quantile(a, 0.5)
+        assert np.isscalar(actual)
+        assert_equal(np.quantile(a, 0.5), np.nan)
+
+    @pytest.mark.parametrize("weights", [False, True])
+    @pytest.mark.parametrize("method", quantile_methods)
+    @pytest.mark.parametrize("alpha", [0.2, 0.5, 0.9])
+    def test_quantile_identification_equation(self, weights, method, alpha):
+        # Test that the identification equation holds for the empirical
+        # CDF:
+        #   E[V(x, Y)] = 0  <=>  x is quantile
+        # with Y the random variable for which we have observed values and
+        # V(x, y) the canonical identification function for the quantile (at
+        # level alpha), see
+        # https://doi.org/10.48550/arXiv.0912.0902
+        if weights and method not in methods_supporting_weights:
+            pytest.skip("Weights not supported by method.")
+        rng = np.random.default_rng(4321)
+        # We choose n and alpha such that we cover 3 cases:
+        #  - n * alpha is an integer
+        #  - n * alpha is a float that gets rounded down
+        #  - n * alpha is a float that gest rounded up
+        n = 102  # n * alpha = 20.4, 51. , 91.8
+        y = rng.random(n)
+        w = rng.integers(low=0, high=10, size=n) if weights else None
+        x = np.quantile(y, alpha, method=method, weights=w)
+
+        if method in ("higher",):
+            # These methods do not fulfill the identification equation.
+            assert np.abs(np.mean(self.V(x, y, alpha))) > 0.1 / n
+        elif int(n * alpha) == n * alpha and not weights:
+            # We can expect exact results, up to machine precision.
+            assert_allclose(
+                np.average(self.V(x, y, alpha), weights=w), 0, atol=1e-14,
+            )
+        else:
+            # V = (x >= y) - alpha cannot sum to zero exactly but within
+            # "sample precision".
+            assert_allclose(np.average(self.V(x, y, alpha), weights=w), 0,
+                atol=1 / n / np.amin([alpha, 1 - alpha]))
+
+    @pytest.mark.parametrize("weights", [False, True])
+    @pytest.mark.parametrize("method", quantile_methods)
+    @pytest.mark.parametrize("alpha", [0.2, 0.5, 0.9])
+    def test_quantile_add_and_multiply_constant(self, weights, method, alpha):
+        # Test that
+        #  1. quantile(c + x) = c + quantile(x)
+        #  2. quantile(c * x) = c * quantile(x)
+        #  3. quantile(-x) = -quantile(x, 1 - alpha)
+        #     On empirical quantiles, this equation does not hold exactly.
+        # Koenker (2005) "Quantile Regression" Chapter 2.2.3 calls these
+        # properties equivariance.
+        if weights and method not in methods_supporting_weights:
+            pytest.skip("Weights not supported by method.")
+        rng = np.random.default_rng(4321)
+        # We choose n and alpha such that we have cases for
+        #  - n * alpha is an integer
+        #  - n * alpha is a float that gets rounded down
+        #  - n * alpha is a float that gest rounded up
+        n = 102  # n * alpha = 20.4, 51. , 91.8
+        y = rng.random(n)
+        w = rng.integers(low=0, high=10, size=n) if weights else None
+        q = np.quantile(y, alpha, method=method, weights=w)
+        c = 13.5
+
+        # 1
+        assert_allclose(np.quantile(c + y, alpha, method=method, weights=w),
+                        c + q)
+        # 2
+        assert_allclose(np.quantile(c * y, alpha, method=method, weights=w),
+                        c * q)
+        # 3
+        if weights:
+            # From here on, we would need more methods to support weights.
+            return
+        q = -np.quantile(-y, 1 - alpha, method=method)
+        if method == "inverted_cdf":
+            if (
+                n * alpha == int(n * alpha)
+                or np.round(n * alpha) == int(n * alpha) + 1
+            ):
+                assert_allclose(q, np.quantile(y, alpha, method="higher"))
+            else:
+                assert_allclose(q, np.quantile(y, alpha, method="lower"))
+        elif method == "closest_observation":
+            if n * alpha == int(n * alpha):
+                assert_allclose(q, np.quantile(y, alpha, method="higher"))
+            elif np.round(n * alpha) == int(n * alpha) + 1:
+                assert_allclose(
+                    q, np.quantile(y, alpha + 1 / n, method="higher"))
+            else:
+                assert_allclose(q, np.quantile(y, alpha, method="lower"))
+        elif method == "interpolated_inverted_cdf":
+            assert_allclose(q, np.quantile(y, alpha + 1 / n, method=method))
+        elif method == "nearest":
+            if n * alpha == int(n * alpha):
+                assert_allclose(q, np.quantile(y, alpha + 1 / n, method=method))
+            else:
+                assert_allclose(q, np.quantile(y, alpha, method=method))
+        elif method == "lower":
+            assert_allclose(q, np.quantile(y, alpha, method="higher"))
+        elif method == "higher":
+            assert_allclose(q, np.quantile(y, alpha, method="lower"))
+        else:
+            # "averaged_inverted_cdf", "hazen", "weibull", "linear",
+            # "median_unbiased", "normal_unbiased", "midpoint"
+            assert_allclose(q, np.quantile(y, alpha, method=method))
+
+    @pytest.mark.parametrize("method", methods_supporting_weights)
+    @pytest.mark.parametrize("alpha", [0.2, 0.5, 0.9])
+    def test_quantile_constant_weights(self, method, alpha):
+        rng = np.random.default_rng(4321)
+        # We choose n and alpha such that we have cases for
+        #  - n * alpha is an integer
+        #  - n * alpha is a float that gets rounded down
+        #  - n * alpha is a float that gest rounded up
+        n = 102  # n * alpha = 20.4, 51. , 91.8
+        y = rng.random(n)
+        q = np.quantile(y, alpha, method=method)
+
+        w = np.ones_like(y)
+        qw = np.quantile(y, alpha, method=method, weights=w)
+        assert_allclose(qw, q)
+
+        w = 8.125 * np.ones_like(y)
+        qw = np.quantile(y, alpha, method=method, weights=w)
+        assert_allclose(qw, q)
+
+    @pytest.mark.parametrize("method", methods_supporting_weights)
+    @pytest.mark.parametrize("alpha", [0, 0.2, 0.5, 0.9, 1])
+    def test_quantile_with_integer_weights(self, method, alpha):
+        # Integer weights can be interpreted as repeated observations.
+        rng = np.random.default_rng(4321)
+        # We choose n and alpha such that we have cases for
+        #  - n * alpha is an integer
+        #  - n * alpha is a float that gets rounded down
+        #  - n * alpha is a float that gest rounded up
+        n = 102  # n * alpha = 20.4, 51. , 91.8
+        y = rng.random(n)
+        w = rng.integers(low=0, high=10, size=n, dtype=np.int32)
+
+        qw = np.quantile(y, alpha, method=method, weights=w)
+        q = np.quantile(np.repeat(y, w), alpha, method=method)
+        assert_allclose(qw, q)
+
+    @pytest.mark.parametrize("method", methods_supporting_weights)
+    def test_quantile_with_weights_and_axis(self, method):
+        rng = np.random.default_rng(4321)
+
+        # 1d weight and single alpha
+        y = rng.random((2, 10, 3))
+        w = np.abs(rng.random(10))
+        alpha = 0.5
+        q = np.quantile(y, alpha, weights=w, method=method, axis=1)
+        q_res = np.zeros(shape=(2, 3))
+        for i in range(2):
+            for j in range(3):
+                q_res[i, j] = np.quantile(
+                    y[i, :, j], alpha, method=method, weights=w
+                )
+        assert_allclose(q, q_res)
+
+        # 1d weight and 1d alpha
+        alpha = [0, 0.2, 0.4, 0.6, 0.8, 1]  # shape (6,)
+        q = np.quantile(y, alpha, weights=w, method=method, axis=1)
+        q_res = np.zeros(shape=(6, 2, 3))
+        for i in range(2):
+            for j in range(3):
+                q_res[:, i, j] = np.quantile(
+                    y[i, :, j], alpha, method=method, weights=w
+                )
+        assert_allclose(q, q_res)
+
+        # 1d weight and 2d alpha
+        alpha = [[0, 0.2], [0.4, 0.6], [0.8, 1]]  # shape (3, 2)
+        q = np.quantile(y, alpha, weights=w, method=method, axis=1)
+        q_res = q_res.reshape((3, 2, 2, 3))
+        assert_allclose(q, q_res)
+
+        # shape of weights equals shape of y
+        w = np.abs(rng.random((2, 10, 3)))
+        alpha = 0.5
+        q = np.quantile(y, alpha, weights=w, method=method, axis=1)
+        q_res = np.zeros(shape=(2, 3))
+        for i in range(2):
+            for j in range(3):
+                q_res[i, j] = np.quantile(
+                    y[i, :, j], alpha, method=method, weights=w[i, :, j]
+                )
+        assert_allclose(q, q_res)
+
+        # axis is a tuple of all axes
+        q = np.quantile(y, alpha, weights=w, method=method, axis=(0, 1, 2))
+        q_res = np.quantile(y, alpha, weights=w, method=method, axis=None)
+        assert_allclose(q, q_res)
+
+        q = np.quantile(y, alpha, weights=w, method=method, axis=(1, 2))
+        q_res = np.zeros(shape=(2,))
+        for i in range(2):
+            q_res[i] = np.quantile(y[i], alpha, weights=w[i], method=method)
+        assert_allclose(q, q_res)
+
+    @pytest.mark.parametrize("method", methods_supporting_weights)
+    def test_quantile_weights_min_max(self, method):
+        # Test weighted quantile at 0 and 1 with leading and trailing zero
+        # weights.
+        w = [0, 0, 1, 2, 3, 0]
+        y = np.arange(6)
+        y_min = np.quantile(y, 0, weights=w, method="inverted_cdf")
+        y_max = np.quantile(y, 1, weights=w, method="inverted_cdf")
+        assert y_min == y[2]  # == 2
+        assert y_max == y[4]  # == 4
+
+    def test_quantile_weights_raises_negative_weights(self):
+        y = [1, 2]
+        w = [-0.5, 1]
+        with pytest.raises(ValueError, match="Weights must be non-negative"):
+            np.quantile(y, 0.5, weights=w, method="inverted_cdf")
+
+    @pytest.mark.parametrize(
+            "method",
+            sorted(set(quantile_methods) - set(methods_supporting_weights)),
+    )
+    def test_quantile_weights_raises_unsupported_methods(self, method):
+        y = [1, 2]
+        w = [0.5, 1]
+        msg = "Only method 'inverted_cdf' supports weights"
+        with pytest.raises(ValueError, match=msg):
+            np.quantile(y, 0.5, weights=w, method=method)
+
+    def test_weibull_fraction(self):
+        arr = [Fraction(0, 1), Fraction(1, 10)]
+        quantile = np.quantile(arr, [0, ], method='weibull')
+        assert_equal(quantile, np.array(Fraction(0, 1)))
+        quantile = np.quantile(arr, [Fraction(1, 2)], method='weibull')
+        assert_equal(quantile, np.array(Fraction(1, 20)))
+
+    def test_closest_observation(self):
+        # Round ties to nearest even order statistic (see #26656)
+        m = 'closest_observation'
+        q = 0.5
+        arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+        assert_equal(2, np.quantile(arr[0:3], q, method=m))
+        assert_equal(2, np.quantile(arr[0:4], q, method=m))
+        assert_equal(2, np.quantile(arr[0:5], q, method=m))
+        assert_equal(3, np.quantile(arr[0:6], q, method=m))
+        assert_equal(4, np.quantile(arr[0:7], q, method=m))
+        assert_equal(4, np.quantile(arr[0:8], q, method=m))
+        assert_equal(4, np.quantile(arr[0:9], q, method=m))
+        assert_equal(5, np.quantile(arr, q, method=m))
+
+    @pytest.mark.parametrize("weights",
+            [[1, np.inf, 1, 1], [1, np.inf, 1, np.inf], [0, 0, 0, 0],
+             [np.finfo("float64").max] * 4])
+    @pytest.mark.parametrize("dty", ["f8", "O"])
+    def test_inf_zeroes_err(self, weights, dty):
+        m = "inverted_cdf"
+        q = 0.5
+        arr = np.array([[1, 2, 3, 4]] * 2)
+        # Make one entry have bad weights and another good ones.
+        wgts = np.array([weights, [0.5] * 4], dtype=dty)
+        with pytest.raises(ValueError,
+                match=r"Weights included NaN, inf or were all zero"):
+            # We (currently) don't bother to check ahead so 0/0 or
+            # overflow to `inf` while summing weights, or `inf / inf`
+            # will all warn before the error is raised.
+            with np.errstate(all="ignore"):
+                a = np.quantile(arr, q, weights=wgts, method=m, axis=1)
+
+    @pytest.mark.parametrize("weights",
+            [[1, np.nan, 1, 1], [1, np.nan, np.nan, 1]])
+    @pytest.mark.parametrize(["err", "dty"],
+            [(ValueError, "f8"), ((RuntimeWarning, ValueError), "O")])
+    def test_nan_err(self, err, dty, weights):
+        m = "inverted_cdf"
+        q = 0.5
+        arr = np.array([[1, 2, 3, 4]] * 2)
+        # Make one entry have bad weights and another good ones.
+        wgts = np.array([weights, [0.5] * 4], dtype=dty)
+        with pytest.raises(err):
+            a = np.quantile(arr, q, weights=wgts, method=m)
+
+    def test_quantile_gh_29003_Fraction(self):
+        r = np.quantile([1, 2], q=Fraction(1))
+        assert r == Fraction(2)
+        assert isinstance(r, Fraction)
+
+        r = np.quantile([1, 2], q=Fraction(.5))
+        assert r == Fraction(3, 2)
+        assert isinstance(r, Fraction)
+
+    def test_float16_gh_29003(self):
+        a = np.arange(50_001, dtype=np.float16)
+        q = .999
+        value = np.quantile(a, q)
+        assert value == q * 50_000
+        assert value.dtype == np.float16
+
+    @pytest.mark.parametrize("method", interpolating_quantile_methods)
+    @pytest.mark.parametrize("q", [0.5, 1])
+    def test_q_weak_promotion(self, method, q):
+        a = np.array([1, 2, 3, 4, 5], dtype=np.float32)
+        value = np.quantile(a, q, method=method)
+        assert value.dtype == np.float32
+
+    @pytest.mark.parametrize("method", interpolating_quantile_methods)
+    def test_q_strong_promotion(self, method):
+        # For interpolating methods, the dtype should be float64, for
+        # discrete ones the original int8.  (technically, mid-point has no
+        # reason to take into account `q`, but does so anyway.)
+        a = np.array([1, 2, 3, 4, 5], dtype=np.float32)
+        value = np.quantile(a, np.float64(0.5), method=method)
+        assert value.dtype == np.float64
+        # Check that we don't do accidental promotion either:
+        value = np.quantile(a, np.float32(0.5), method=method)
+        assert value.dtype == np.float32
+
+
+class TestLerp:
+    @hypothesis.given(t0=st.floats(allow_nan=False, allow_infinity=False,
+                                   min_value=0, max_value=1),
+                      t1=st.floats(allow_nan=False, allow_infinity=False,
+                                   min_value=0, max_value=1),
+                      a=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=-1e300, max_value=1e300),
+                      b=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=-1e300, max_value=1e300))
+    def test_linear_interpolation_formula_monotonic(self, t0, t1, a, b):
+        l0 = nfb._lerp(a, b, t0)
+        l1 = nfb._lerp(a, b, t1)
+        if t0 == t1 or a == b:
+            assert l0 == l1  # uninteresting
+        elif (t0 < t1) == (a < b):
+            assert l0 <= l1
+        else:
+            assert l0 >= l1
+
+    @hypothesis.given(t=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=0, max_value=1),
+                      a=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=-1e300, max_value=1e300),
+                      b=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=-1e300, max_value=1e300))
+    def test_linear_interpolation_formula_bounded(self, t, a, b):
+        if a <= b:
+            assert a <= nfb._lerp(a, b, t) <= b
+        else:
+            assert b <= nfb._lerp(a, b, t) <= a
+
+    @hypothesis.given(t=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=0, max_value=1),
+                      a=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=-1e300, max_value=1e300),
+                      b=st.floats(allow_nan=False, allow_infinity=False,
+                                  min_value=-1e300, max_value=1e300))
+    def test_linear_interpolation_formula_symmetric(self, t, a, b):
+        # double subtraction is needed to remove the extra precision of t < 0.5
+        left = nfb._lerp(a, b, 1 - (1 - t))
+        right = nfb._lerp(b, a, 1 - t)
+        assert_allclose(left, right)
+
+    def test_linear_interpolation_formula_0d_inputs(self):
+        a = np.array(2)
+        b = np.array(5)
+        t = np.array(0.2)
+        assert nfb._lerp(a, b, t) == 2.6
+
+
+class TestMedian:
+
+    def test_basic(self):
+        a0 = np.array(1)
+        a1 = np.arange(2)
+        a2 = np.arange(6).reshape(2, 3)
+        assert_equal(np.median(a0), 1)
+        assert_allclose(np.median(a1), 0.5)
+        assert_allclose(np.median(a2), 2.5)
+        assert_allclose(np.median(a2, axis=0), [1.5, 2.5, 3.5])
+        assert_equal(np.median(a2, axis=1), [1, 4])
+        assert_allclose(np.median(a2, axis=None), 2.5)
+
+        a = np.array([0.0444502, 0.0463301, 0.141249, 0.0606775])
+        assert_almost_equal((a[1] + a[3]) / 2., np.median(a))
+        a = np.array([0.0463301, 0.0444502, 0.141249])
+        assert_equal(a[0], np.median(a))
+        a = np.array([0.0444502, 0.141249, 0.0463301])
+        assert_equal(a[-1], np.median(a))
+        # check array scalar result
+        assert_equal(np.median(a).ndim, 0)
+        a[1] = np.nan
+        assert_equal(np.median(a).ndim, 0)
+
+    def test_axis_keyword(self):
+        a3 = np.array([[2, 3],
+                       [0, 1],
+                       [6, 7],
+                       [4, 5]])
+        for a in [a3, np.random.randint(0, 100, size=(2, 3, 4))]:
+            orig = a.copy()
+            np.median(a, axis=None)
+            for ax in range(a.ndim):
+                np.median(a, axis=ax)
+            assert_array_equal(a, orig)
+
+        assert_allclose(np.median(a3, axis=0), [3, 4])
+        assert_allclose(np.median(a3.T, axis=1), [3, 4])
+        assert_allclose(np.median(a3), 3.5)
+        assert_allclose(np.median(a3, axis=None), 3.5)
+        assert_allclose(np.median(a3.T), 3.5)
+
+    def test_overwrite_keyword(self):
+        a3 = np.array([[2, 3],
+                       [0, 1],
+                       [6, 7],
+                       [4, 5]])
+        a0 = np.array(1)
+        a1 = np.arange(2)
+        a2 = np.arange(6).reshape(2, 3)
+        assert_allclose(np.median(a0.copy(), overwrite_input=True), 1)
+        assert_allclose(np.median(a1.copy(), overwrite_input=True), 0.5)
+        assert_allclose(np.median(a2.copy(), overwrite_input=True), 2.5)
+        assert_allclose(
+            np.median(a2.copy(), overwrite_input=True, axis=0), [1.5, 2.5, 3.5])
+        assert_allclose(
+            np.median(a2.copy(), overwrite_input=True, axis=1), [1, 4])
+        assert_allclose(
+            np.median(a2.copy(), overwrite_input=True, axis=None), 2.5)
+        assert_allclose(
+            np.median(a3.copy(), overwrite_input=True, axis=0), [3, 4])
+        assert_allclose(
+            np.median(a3.T.copy(), overwrite_input=True, axis=1), [3, 4])
+
+        a4 = np.arange(3 * 4 * 5, dtype=np.float32).reshape((3, 4, 5))
+        np.random.shuffle(a4.ravel())
+        assert_allclose(np.median(a4, axis=None),
+                        np.median(a4.copy(), axis=None, overwrite_input=True))
+        assert_allclose(np.median(a4, axis=0),
+                        np.median(a4.copy(), axis=0, overwrite_input=True))
+        assert_allclose(np.median(a4, axis=1),
+                        np.median(a4.copy(), axis=1, overwrite_input=True))
+        assert_allclose(np.median(a4, axis=2),
+                        np.median(a4.copy(), axis=2, overwrite_input=True))
+
+    def test_array_like(self):
+        x = [1, 2, 3]
+        assert_almost_equal(np.median(x), 2)
+        x2 = [x]
+        assert_almost_equal(np.median(x2), 2)
+        assert_allclose(np.median(x2, axis=0), x)
+
+    def test_subclass(self):
+        # gh-3846
+        class MySubClass(np.ndarray):
+
+            def __new__(cls, input_array, info=None):
+                obj = np.asarray(input_array).view(cls)
+                obj.info = info
+                return obj
+
+            def mean(self, axis=None, dtype=None, out=None):
+                return -7
+
+        a = MySubClass([1, 2, 3])
+        assert_equal(np.median(a), -7)
+
+    @pytest.mark.parametrize('arr',
+                             ([1., 2., 3.], [1., np.nan, 3.], np.nan, 0.))
+    def test_subclass2(self, arr):
+        """Check that we return subclasses, even if a NaN scalar."""
+        class MySubclass(np.ndarray):
+            pass
+
+        m = np.median(np.array(arr).view(MySubclass))
+        assert isinstance(m, MySubclass)
+
+    def test_out(self):
+        o = np.zeros((4,))
+        d = np.ones((3, 4))
+        assert_equal(np.median(d, 0, out=o), o)
+        o = np.zeros((3,))
+        assert_equal(np.median(d, 1, out=o), o)
+        o = np.zeros(())
+        assert_equal(np.median(d, out=o), o)
+
+    def test_out_nan(self):
+        with warnings.catch_warnings(record=True):
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            o = np.zeros((4,))
+            d = np.ones((3, 4))
+            d[2, 1] = np.nan
+            assert_equal(np.median(d, 0, out=o), o)
+            o = np.zeros((3,))
+            assert_equal(np.median(d, 1, out=o), o)
+            o = np.zeros(())
+            assert_equal(np.median(d, out=o), o)
+
+    def test_nan_behavior(self):
+        a = np.arange(24, dtype=float)
+        a[2] = np.nan
+        assert_equal(np.median(a), np.nan)
+        assert_equal(np.median(a, axis=0), np.nan)
+
+        a = np.arange(24, dtype=float).reshape(2, 3, 4)
+        a[1, 2, 3] = np.nan
+        a[1, 1, 2] = np.nan
+
+        # no axis
+        assert_equal(np.median(a), np.nan)
+        assert_equal(np.median(a).ndim, 0)
+
+        # axis0
+        b = np.median(np.arange(24, dtype=float).reshape(2, 3, 4), 0)
+        b[2, 3] = np.nan
+        b[1, 2] = np.nan
+        assert_equal(np.median(a, 0), b)
+
+        # axis1
+        b = np.median(np.arange(24, dtype=float).reshape(2, 3, 4), 1)
+        b[1, 3] = np.nan
+        b[1, 2] = np.nan
+        assert_equal(np.median(a, 1), b)
+
+        # axis02
+        b = np.median(np.arange(24, dtype=float).reshape(2, 3, 4), (0, 2))
+        b[1] = np.nan
+        b[2] = np.nan
+        assert_equal(np.median(a, (0, 2)), b)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work correctly")
+    def test_empty(self):
+        # mean(empty array) emits two warnings: empty slice and divide by 0
+        a = np.array([], dtype=float)
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_equal(np.median(a), np.nan)
+            assert_(w[0].category is RuntimeWarning)
+            assert_equal(len(w), 2)
+
+        # multiple dimensions
+        a = np.array([], dtype=float, ndmin=3)
+        # no axis
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_equal(np.median(a), np.nan)
+            assert_(w[0].category is RuntimeWarning)
+
+        # axis 0 and 1
+        b = np.array([], dtype=float, ndmin=2)
+        assert_equal(np.median(a, axis=0), b)
+        assert_equal(np.median(a, axis=1), b)
+
+        # axis 2
+        b = np.array(np.nan, dtype=float, ndmin=2)
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', RuntimeWarning)
+            assert_equal(np.median(a, axis=2), b)
+            assert_(w[0].category is RuntimeWarning)
+
+    def test_object(self):
+        o = np.arange(7.)
+        assert_(type(np.median(o.astype(object))), float)
+        o[2] = np.nan
+        assert_(type(np.median(o.astype(object))), float)
+
+    def test_extended_axis(self):
+        o = np.random.normal(size=(71, 23))
+        x = np.dstack([o] * 10)
+        assert_equal(np.median(x, axis=(0, 1)), np.median(o))
+        x = np.moveaxis(x, -1, 0)
+        assert_equal(np.median(x, axis=(-2, -1)), np.median(o))
+        x = x.swapaxes(0, 1).copy()
+        assert_equal(np.median(x, axis=(0, -1)), np.median(o))
+
+        assert_equal(np.median(x, axis=(0, 1, 2)), np.median(x, axis=None))
+        assert_equal(np.median(x, axis=(0, )), np.median(x, axis=0))
+        assert_equal(np.median(x, axis=(-1, )), np.median(x, axis=-1))
+
+        d = np.arange(3 * 5 * 7 * 11).reshape((3, 5, 7, 11))
+        np.random.shuffle(d.ravel())
+        assert_equal(np.median(d, axis=(0, 1, 2))[0],
+                     np.median(d[:, :, :, 0].flatten()))
+        assert_equal(np.median(d, axis=(0, 1, 3))[1],
+                     np.median(d[:, :, 1, :].flatten()))
+        assert_equal(np.median(d, axis=(3, 1, -4))[2],
+                     np.median(d[:, :, 2, :].flatten()))
+        assert_equal(np.median(d, axis=(3, 1, 2))[2],
+                     np.median(d[2, :, :, :].flatten()))
+        assert_equal(np.median(d, axis=(3, 2))[2, 1],
+                     np.median(d[2, 1, :, :].flatten()))
+        assert_equal(np.median(d, axis=(1, -2))[2, 1],
+                     np.median(d[2, :, :, 1].flatten()))
+        assert_equal(np.median(d, axis=(1, 3))[2, 2],
+                     np.median(d[2, :, 2, :].flatten()))
+
+    def test_extended_axis_invalid(self):
+        d = np.ones((3, 5, 7, 11))
+        assert_raises(AxisError, np.median, d, axis=-5)
+        assert_raises(AxisError, np.median, d, axis=(0, -5))
+        assert_raises(AxisError, np.median, d, axis=4)
+        assert_raises(AxisError, np.median, d, axis=(0, 4))
+        assert_raises(ValueError, np.median, d, axis=(1, 1))
+
+    def test_keepdims(self):
+        d = np.ones((3, 5, 7, 11))
+        assert_equal(np.median(d, axis=None, keepdims=True).shape,
+                     (1, 1, 1, 1))
+        assert_equal(np.median(d, axis=(0, 1), keepdims=True).shape,
+                     (1, 1, 7, 11))
+        assert_equal(np.median(d, axis=(0, 3), keepdims=True).shape,
+                     (1, 5, 7, 1))
+        assert_equal(np.median(d, axis=(1,), keepdims=True).shape,
+                     (3, 1, 7, 11))
+        assert_equal(np.median(d, axis=(0, 1, 2, 3), keepdims=True).shape,
+                     (1, 1, 1, 1))
+        assert_equal(np.median(d, axis=(0, 1, 3), keepdims=True).shape,
+                     (1, 1, 7, 1))
+
+    @pytest.mark.parametrize(
+        argnames='axis',
+        argvalues=[
+            None,
+            1,
+            (1, ),
+            (0, 1),
+            (-3, -1),
+        ]
+    )
+    def test_keepdims_out(self, axis):
+        d = np.ones((3, 5, 7, 11))
+        if axis is None:
+            shape_out = (1,) * d.ndim
+        else:
+            axis_norm = normalize_axis_tuple(axis, d.ndim)
+            shape_out = tuple(
+                1 if i in axis_norm else d.shape[i] for i in range(d.ndim))
+        out = np.empty(shape_out)
+        result = np.median(d, axis=axis, keepdims=True, out=out)
+        assert result is out
+        assert_equal(result.shape, shape_out)
+
+    @pytest.mark.parametrize("dtype", ["m8[s]"])
+    @pytest.mark.parametrize("pos", [0, 23, 10])
+    def test_nat_behavior(self, dtype, pos):
+        # TODO: Median does not support Datetime, due to `mean`.
+        # NaT and NaN should behave the same, do basic tests for NaT.
+        a = np.arange(0, 24, dtype=dtype)
+        a[pos] = "NaT"
+        res = np.median(a)
+        assert res.dtype == dtype
+        assert np.isnat(res)
+        res = np.percentile(a, [30, 60])
+        assert res.dtype == dtype
+        assert np.isnat(res).all()
+
+        a = np.arange(0, 24 * 3, dtype=dtype).reshape(-1, 3)
+        a[pos, 1] = "NaT"
+        res = np.median(a, axis=0)
+        assert_array_equal(np.isnat(res), [False, True, False])
+
+
+class TestSortComplex:
+
+    @pytest.mark.parametrize("type_in, type_out", [
+        ('l', 'D'),
+        ('h', 'F'),
+        ('H', 'F'),
+        ('b', 'F'),
+        ('B', 'F'),
+        ('g', 'G'),
+        ])
+    def test_sort_real(self, type_in, type_out):
+        # sort_complex() type casting for real input types
+        a = np.array([5, 3, 6, 2, 1], dtype=type_in)
+        actual = np.sort_complex(a)
+        expected = np.sort(a).astype(type_out)
+        assert_equal(actual, expected)
+        assert_equal(actual.dtype, expected.dtype)
+
+    def test_sort_complex(self):
+        # sort_complex() handling of complex input
+        a = np.array([2 + 3j, 1 - 2j, 1 - 3j, 2 + 1j], dtype='D')
+        expected = np.array([1 - 3j, 1 - 2j, 2 + 1j, 2 + 3j], dtype='D')
+        actual = np.sort_complex(a)
+        assert_equal(actual, expected)
+        assert_equal(actual.dtype, expected.dtype)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_histograms.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_histograms.py
new file mode 100644
index 0000000000000000000000000000000000000000..50f8c498103d1072545dc1cc9d6702696ae75e30
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_histograms.py
@@ -0,0 +1,855 @@
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy import histogram, histogram_bin_edges, histogramdd
+from numpy.testing import (
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_array_max_ulp,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+class TestHistogram:
+
+    def setup_method(self):
+        pass
+
+    def teardown_method(self):
+        pass
+
+    def test_simple(self):
+        n = 100
+        v = np.random.rand(n)
+        (a, b) = histogram(v)
+        # check if the sum of the bins equals the number of samples
+        assert_equal(np.sum(a, axis=0), n)
+        # check that the bin counts are evenly spaced when the data is from
+        # a linear function
+        (a, b) = histogram(np.linspace(0, 10, 100))
+        assert_array_equal(a, 10)
+
+    def test_one_bin(self):
+        # Ticket 632
+        hist, edges = histogram([1, 2, 3, 4], [1, 2])
+        assert_array_equal(hist, [2, ])
+        assert_array_equal(edges, [1, 2])
+        assert_raises(ValueError, histogram, [1, 2], bins=0)
+        h, e = histogram([1, 2], bins=1)
+        assert_equal(h, np.array([2]))
+        assert_allclose(e, np.array([1., 2.]))
+
+    def test_density(self):
+        # Check that the integral of the density equals 1.
+        n = 100
+        v = np.random.rand(n)
+        a, b = histogram(v, density=True)
+        area = np.sum(a * np.diff(b))
+        assert_almost_equal(area, 1)
+
+        # Check with non-constant bin widths
+        v = np.arange(10)
+        bins = [0, 1, 3, 6, 10]
+        a, b = histogram(v, bins, density=True)
+        assert_array_equal(a, .1)
+        assert_equal(np.sum(a * np.diff(b)), 1)
+
+        # Test that passing False works too
+        a, b = histogram(v, bins, density=False)
+        assert_array_equal(a, [1, 2, 3, 4])
+
+        # Variable bin widths are especially useful to deal with
+        # infinities.
+        v = np.arange(10)
+        bins = [0, 1, 3, 6, np.inf]
+        a, b = histogram(v, bins, density=True)
+        assert_array_equal(a, [.1, .1, .1, 0.])
+
+        # Taken from a bug report from N. Becker on the numpy-discussion
+        # mailing list Aug. 6, 2010.
+        counts, dmy = np.histogram(
+            [1, 2, 3, 4], [0.5, 1.5, np.inf], density=True)
+        assert_equal(counts, [.25, 0])
+
+    def test_outliers(self):
+        # Check that outliers are not tallied
+        a = np.arange(10) + .5
+
+        # Lower outliers
+        h, b = histogram(a, range=[0, 9])
+        assert_equal(h.sum(), 9)
+
+        # Upper outliers
+        h, b = histogram(a, range=[1, 10])
+        assert_equal(h.sum(), 9)
+
+        # Normalization
+        h, b = histogram(a, range=[1, 9], density=True)
+        assert_almost_equal((h * np.diff(b)).sum(), 1, decimal=15)
+
+        # Weights
+        w = np.arange(10) + .5
+        h, b = histogram(a, range=[1, 9], weights=w, density=True)
+        assert_equal((h * np.diff(b)).sum(), 1)
+
+        h, b = histogram(a, bins=8, range=[1, 9], weights=w)
+        assert_equal(h, w[1:-1])
+
+    def test_arr_weights_mismatch(self):
+        a = np.arange(10) + .5
+        w = np.arange(11) + .5
+        with assert_raises_regex(ValueError, "same shape as"):
+            h, b = histogram(a, range=[1, 9], weights=w, density=True)
+
+    def test_type(self):
+        # Check the type of the returned histogram
+        a = np.arange(10) + .5
+        h, b = histogram(a)
+        assert_(np.issubdtype(h.dtype, np.integer))
+
+        h, b = histogram(a, density=True)
+        assert_(np.issubdtype(h.dtype, np.floating))
+
+        h, b = histogram(a, weights=np.ones(10, int))
+        assert_(np.issubdtype(h.dtype, np.integer))
+
+        h, b = histogram(a, weights=np.ones(10, float))
+        assert_(np.issubdtype(h.dtype, np.floating))
+
+    def test_f32_rounding(self):
+        # gh-4799, check that the rounding of the edges works with float32
+        x = np.array([276.318359, -69.593948, 21.329449], dtype=np.float32)
+        y = np.array([5005.689453, 4481.327637, 6010.369629], dtype=np.float32)
+        counts_hist, xedges, yedges = np.histogram2d(x, y, bins=100)
+        assert_equal(counts_hist.sum(), 3.)
+
+    def test_bool_conversion(self):
+        # gh-12107
+        # Reference integer histogram
+        a = np.array([1, 1, 0], dtype=np.uint8)
+        int_hist, int_edges = np.histogram(a)
+
+        # Should raise a warning on booleans
+        # Ensure that the histograms are equivalent, need to suppress
+        # the warnings to get the actual outputs
+        with pytest.warns(RuntimeWarning, match='Converting input from .*'):
+            hist, edges = np.histogram([True, True, False])
+            # A warning should be issued
+            assert_array_equal(hist, int_hist)
+            assert_array_equal(edges, int_edges)
+
+    def test_weights(self):
+        v = np.random.rand(100)
+        w = np.ones(100) * 5
+        a, b = histogram(v)
+        na, nb = histogram(v, density=True)
+        wa, wb = histogram(v, weights=w)
+        nwa, nwb = histogram(v, weights=w, density=True)
+        assert_array_almost_equal(a * 5, wa)
+        assert_array_almost_equal(na, nwa)
+
+        # Check weights are properly applied.
+        v = np.linspace(0, 10, 10)
+        w = np.concatenate((np.zeros(5), np.ones(5)))
+        wa, wb = histogram(v, bins=np.arange(11), weights=w)
+        assert_array_almost_equal(wa, w)
+
+        # Check with integer weights
+        wa, wb = histogram([1, 2, 2, 4], bins=4, weights=[4, 3, 2, 1])
+        assert_array_equal(wa, [4, 5, 0, 1])
+        wa, wb = histogram(
+            [1, 2, 2, 4], bins=4, weights=[4, 3, 2, 1], density=True)
+        assert_array_almost_equal(wa, np.array([4, 5, 0, 1]) / 10. / 3. * 4)
+
+        # Check weights with non-uniform bin widths
+        a, b = histogram(
+            np.arange(9), [0, 1, 3, 6, 10],
+            weights=[2, 1, 1, 1, 1, 1, 1, 1, 1], density=True)
+        assert_almost_equal(a, [.2, .1, .1, .075])
+
+    def test_exotic_weights(self):
+
+        # Test the use of weights that are not integer or floats, but e.g.
+        # complex numbers or object types.
+
+        # Complex weights
+        values = np.array([1.3, 2.5, 2.3])
+        weights = np.array([1, -1, 2]) + 1j * np.array([2, 1, 2])
+
+        # Check with custom bins
+        wa, wb = histogram(values, bins=[0, 2, 3], weights=weights)
+        assert_array_almost_equal(wa, np.array([1, 1]) + 1j * np.array([2, 3]))
+
+        # Check with even bins
+        wa, wb = histogram(values, bins=2, range=[1, 3], weights=weights)
+        assert_array_almost_equal(wa, np.array([1, 1]) + 1j * np.array([2, 3]))
+
+        # Decimal weights
+        from decimal import Decimal
+        values = np.array([1.3, 2.5, 2.3])
+        weights = np.array([Decimal(1), Decimal(2), Decimal(3)])
+
+        # Check with custom bins
+        wa, wb = histogram(values, bins=[0, 2, 3], weights=weights)
+        assert_array_almost_equal(wa, [Decimal(1), Decimal(5)])
+
+        # Check with even bins
+        wa, wb = histogram(values, bins=2, range=[1, 3], weights=weights)
+        assert_array_almost_equal(wa, [Decimal(1), Decimal(5)])
+
+    def test_no_side_effects(self):
+        # This is a regression test that ensures that values passed to
+        # ``histogram`` are unchanged.
+        values = np.array([1.3, 2.5, 2.3])
+        np.histogram(values, range=[-10, 10], bins=100)
+        assert_array_almost_equal(values, [1.3, 2.5, 2.3])
+
+    def test_empty(self):
+        a, b = histogram([], bins=([0, 1]))
+        assert_array_equal(a, np.array([0]))
+        assert_array_equal(b, np.array([0, 1]))
+
+    def test_error_binnum_type(self):
+        # Tests if right Error is raised if bins argument is float
+        vals = np.linspace(0.0, 1.0, num=100)
+        histogram(vals, 5)
+        assert_raises(TypeError, histogram, vals, 2.4)
+
+    def test_finite_range(self):
+        # Normal ranges should be fine
+        vals = np.linspace(0.0, 1.0, num=100)
+        histogram(vals, range=[0.25, 0.75])
+        assert_raises(ValueError, histogram, vals, range=[np.nan, 0.75])
+        assert_raises(ValueError, histogram, vals, range=[0.25, np.inf])
+
+    def test_invalid_range(self):
+        # start of range must be < end of range
+        vals = np.linspace(0.0, 1.0, num=100)
+        with assert_raises_regex(ValueError, "max must be larger than"):
+            np.histogram(vals, range=[0.1, 0.01])
+
+    def test_bin_edge_cases(self):
+        # Ensure that floating-point computations correctly place edge cases.
+        arr = np.array([337, 404, 739, 806, 1007, 1811, 2012])
+        hist, edges = np.histogram(arr, bins=8296, range=(2, 2280))
+        mask = hist > 0
+        left_edges = edges[:-1][mask]
+        right_edges = edges[1:][mask]
+        for x, left, right in zip(arr, left_edges, right_edges):
+            assert_(x >= left)
+            assert_(x < right)
+
+    def test_last_bin_inclusive_range(self):
+        arr = np.array([0.,  0.,  0.,  1.,  2.,  3.,  3.,  4.,  5.])
+        hist, edges = np.histogram(arr, bins=30, range=(-0.5, 5))
+        assert_equal(hist[-1], 1)
+
+    def test_bin_array_dims(self):
+        # gracefully handle bins object > 1 dimension
+        vals = np.linspace(0.0, 1.0, num=100)
+        bins = np.array([[0, 0.5], [0.6, 1.0]])
+        with assert_raises_regex(ValueError, "must be 1d"):
+            np.histogram(vals, bins=bins)
+
+    def test_unsigned_monotonicity_check(self):
+        # Ensures ValueError is raised if bins not increasing monotonically
+        # when bins contain unsigned values (see #9222)
+        arr = np.array([2])
+        bins = np.array([1, 3, 1], dtype='uint64')
+        with assert_raises(ValueError):
+            hist, edges = np.histogram(arr, bins=bins)
+
+    def test_object_array_of_0d(self):
+        # gh-7864
+        assert_raises(ValueError,
+            histogram, [np.array(0.4) for i in range(10)] + [-np.inf])
+        assert_raises(ValueError,
+            histogram, [np.array(0.4) for i in range(10)] + [np.inf])
+
+        # these should not crash
+        np.histogram([np.array(0.5) for i in range(10)] + [.500000000000002])
+        np.histogram([np.array(0.5) for i in range(10)] + [.5])
+
+    def test_some_nan_values(self):
+        # gh-7503
+        one_nan = np.array([0, 1, np.nan])
+        all_nan = np.array([np.nan, np.nan])
+
+        # the internal comparisons with NaN give warnings
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            # can't infer range with nan
+            assert_raises(ValueError, histogram, one_nan, bins='auto')
+            assert_raises(ValueError, histogram, all_nan, bins='auto')
+
+            # explicit range solves the problem
+            h, b = histogram(one_nan, bins='auto', range=(0, 1))
+            assert_equal(h.sum(), 2)  # nan is not counted
+            h, b = histogram(all_nan, bins='auto', range=(0, 1))
+            assert_equal(h.sum(), 0)  # nan is not counted
+
+            # as does an explicit set of bins
+            h, b = histogram(one_nan, bins=[0, 1])
+            assert_equal(h.sum(), 2)  # nan is not counted
+            h, b = histogram(all_nan, bins=[0, 1])
+            assert_equal(h.sum(), 0)  # nan is not counted
+
+    def test_datetime(self):
+        begin = np.datetime64('2000-01-01', 'D')
+        offsets = np.array([0, 0, 1, 1, 2, 3, 5, 10, 20])
+        bins = np.array([0, 2, 7, 20])
+        dates = begin + offsets
+        date_bins = begin + bins
+
+        td = np.dtype('timedelta64[D]')
+
+        # Results should be the same for integer offsets or datetime values.
+        # For now, only explicit bins are supported, since linspace does not
+        # work on datetimes or timedeltas
+        d_count, d_edge = histogram(dates, bins=date_bins)
+        t_count, t_edge = histogram(offsets.astype(td), bins=bins.astype(td))
+        i_count, i_edge = histogram(offsets, bins=bins)
+
+        assert_equal(d_count, i_count)
+        assert_equal(t_count, i_count)
+
+        assert_equal((d_edge - begin).astype(int), i_edge)
+        assert_equal(t_edge.astype(int), i_edge)
+
+        assert_equal(d_edge.dtype, dates.dtype)
+        assert_equal(t_edge.dtype, td)
+
+    def do_signed_overflow_bounds(self, dtype):
+        exponent = 8 * np.dtype(dtype).itemsize - 1
+        arr = np.array([-2**exponent + 4, 2**exponent - 4], dtype=dtype)
+        hist, e = histogram(arr, bins=2)
+        assert_equal(e, [-2**exponent + 4, 0, 2**exponent - 4])
+        assert_equal(hist, [1, 1])
+
+    def test_signed_overflow_bounds(self):
+        self.do_signed_overflow_bounds(np.byte)
+        self.do_signed_overflow_bounds(np.short)
+        self.do_signed_overflow_bounds(np.intc)
+        self.do_signed_overflow_bounds(np.int_)
+        self.do_signed_overflow_bounds(np.longlong)
+
+    def do_precision_lower_bound(self, float_small, float_large):
+        eps = np.finfo(float_large).eps
+
+        arr = np.array([1.0], float_small)
+        range = np.array([1.0 + eps, 2.0], float_large)
+
+        # test is looking for behavior when the bounds change between dtypes
+        if range.astype(float_small)[0] != 1:
+            return
+
+        # previously crashed
+        count, x_loc = np.histogram(arr, bins=1, range=range)
+        assert_equal(count, [0])
+        assert_equal(x_loc.dtype, float_large)
+
+    def do_precision_upper_bound(self, float_small, float_large):
+        eps = np.finfo(float_large).eps
+
+        arr = np.array([1.0], float_small)
+        range = np.array([0.0, 1.0 - eps], float_large)
+
+        # test is looking for behavior when the bounds change between dtypes
+        if range.astype(float_small)[-1] != 1:
+            return
+
+        # previously crashed
+        count, x_loc = np.histogram(arr, bins=1, range=range)
+        assert_equal(count, [0])
+
+        assert_equal(x_loc.dtype, float_large)
+
+    def do_precision(self, float_small, float_large):
+        self.do_precision_lower_bound(float_small, float_large)
+        self.do_precision_upper_bound(float_small, float_large)
+
+    def test_precision(self):
+        # not looping results in a useful stack trace upon failure
+        self.do_precision(np.half, np.single)
+        self.do_precision(np.half, np.double)
+        self.do_precision(np.half, np.longdouble)
+        self.do_precision(np.single, np.double)
+        self.do_precision(np.single, np.longdouble)
+        self.do_precision(np.double, np.longdouble)
+
+    def test_histogram_bin_edges(self):
+        hist, e = histogram([1, 2, 3, 4], [1, 2])
+        edges = histogram_bin_edges([1, 2, 3, 4], [1, 2])
+        assert_array_equal(edges, e)
+
+        arr = np.array([0.,  0.,  0.,  1.,  2.,  3.,  3.,  4.,  5.])
+        hist, e = histogram(arr, bins=30, range=(-0.5, 5))
+        edges = histogram_bin_edges(arr, bins=30, range=(-0.5, 5))
+        assert_array_equal(edges, e)
+
+        hist, e = histogram(arr, bins='auto', range=(0, 1))
+        edges = histogram_bin_edges(arr, bins='auto', range=(0, 1))
+        assert_array_equal(edges, e)
+
+    def test_small_value_range(self):
+        arr = np.array([1, 1 + 2e-16] * 10)
+        with pytest.raises(ValueError, match="Too many bins for data range"):
+            histogram(arr, bins=10)
+
+    # @requires_memory(free_bytes=1e10)
+    # @pytest.mark.slow
+    @pytest.mark.skip(reason="Bad memory reports lead to OOM in ci testing")
+    def test_big_arrays(self):
+        sample = np.zeros([100000000, 3])
+        xbins = 400
+        ybins = 400
+        zbins = np.arange(16000)
+        hist = np.histogramdd(sample=sample, bins=(xbins, ybins, zbins))
+        assert_equal(type(hist), type((1, 2)))
+
+    def test_gh_23110(self):
+        hist, e = np.histogram(np.array([-0.9e-308], dtype='>f8'),
+                               bins=2,
+                               range=(-1e-308, -2e-313))
+        expected_hist = np.array([1, 0])
+        assert_array_equal(hist, expected_hist)
+
+    def test_gh_28400(self):
+        e = 1 + 1e-12
+        Z = [0, 1, 1, 1, 1, 1, e, e, e, e, e, e, 2]
+        counts, edges = np.histogram(Z, bins="auto")
+        assert len(counts) < 10
+        assert edges[0] == Z[0]
+        assert edges[-1] == Z[-1]
+
+class TestHistogramOptimBinNums:
+    """
+    Provide test coverage when using provided estimators for optimal number of
+    bins
+    """
+
+    def test_empty(self):
+        estimator_list = ['fd', 'scott', 'rice', 'sturges',
+                          'doane', 'sqrt', 'auto', 'stone']
+        # check it can deal with empty data
+        for estimator in estimator_list:
+            a, b = histogram([], bins=estimator)
+            assert_array_equal(a, np.array([0]))
+            assert_array_equal(b, np.array([0, 1]))
+
+    def test_simple(self):
+        """
+        Straightforward testing with a mixture of linspace data (for
+        consistency). All test values have been precomputed and the values
+        shouldn't change
+        """
+        # Some basic sanity checking, with some fixed data.
+        # Checking for the correct number of bins
+        basic_test = {50:   {'fd': 4,  'scott': 4,  'rice': 8,  'sturges': 7,
+                             'doane': 8, 'sqrt': 8, 'auto': 7, 'stone': 2},
+                      500:  {'fd': 8,  'scott': 8,  'rice': 16, 'sturges': 10,
+                             'doane': 12, 'sqrt': 23, 'auto': 10, 'stone': 9},
+                      5000: {'fd': 17, 'scott': 17, 'rice': 35, 'sturges': 14,
+                             'doane': 17, 'sqrt': 71, 'auto': 17, 'stone': 20}}
+
+        for testlen, expectedResults in basic_test.items():
+            # Create some sort of non uniform data to test with
+            # (2 peak uniform mixture)
+            x1 = np.linspace(-10, -1, testlen // 5 * 2)
+            x2 = np.linspace(1, 10, testlen // 5 * 3)
+            x = np.concatenate((x1, x2))
+            for estimator, numbins in expectedResults.items():
+                a, b = np.histogram(x, estimator)
+                assert_equal(len(a), numbins, err_msg=f"For the {estimator} estimator "
+                             f"with datasize of {testlen}")
+
+    def test_small(self):
+        """
+        Smaller datasets have the potential to cause issues with the data
+        adaptive methods, especially the FD method. All bin numbers have been
+        precalculated.
+        """
+        small_dat = {1: {'fd': 1, 'scott': 1, 'rice': 1, 'sturges': 1,
+                         'doane': 1, 'sqrt': 1, 'stone': 1},
+                     2: {'fd': 2, 'scott': 1, 'rice': 3, 'sturges': 2,
+                         'doane': 1, 'sqrt': 2, 'stone': 1},
+                     3: {'fd': 2, 'scott': 2, 'rice': 3, 'sturges': 3,
+                         'doane': 3, 'sqrt': 2, 'stone': 1}}
+
+        for testlen, expectedResults in small_dat.items():
+            testdat = np.arange(testlen).astype(float)
+            for estimator, expbins in expectedResults.items():
+                a, b = np.histogram(testdat, estimator)
+                assert_equal(len(a), expbins, err_msg=f"For the {estimator} estimator "
+                             f"with datasize of {testlen}")
+
+    def test_incorrect_methods(self):
+        """
+        Check a Value Error is thrown when an unknown string is passed in
+        """
+        check_list = ['mad', 'freeman', 'histograms', 'IQR']
+        for estimator in check_list:
+            assert_raises(ValueError, histogram, [1, 2, 3], estimator)
+
+    def test_novariance(self):
+        """
+        Check that methods handle no variance in data
+        Primarily for Scott and FD as the SD and IQR are both 0 in this case
+        """
+        novar_dataset = np.ones(100)
+        novar_resultdict = {'fd': 1, 'scott': 1, 'rice': 1, 'sturges': 1,
+                            'doane': 1, 'sqrt': 1, 'auto': 1, 'stone': 1}
+
+        for estimator, numbins in novar_resultdict.items():
+            a, b = np.histogram(novar_dataset, estimator)
+            assert_equal(len(a), numbins,
+                         err_msg=f"{estimator} estimator, No Variance test")
+
+    def test_limited_variance(self):
+        """
+        Check when IQR is 0, but variance exists, we return a reasonable value.
+        """
+        lim_var_data = np.ones(1000)
+        lim_var_data[:3] = 0
+        lim_var_data[-4:] = 100
+
+        edges_auto = histogram_bin_edges(lim_var_data, 'auto')
+        assert_equal(edges_auto[0], 0)
+        assert_equal(edges_auto[-1], 100.)
+        assert len(edges_auto) < 100
+
+        edges_fd = histogram_bin_edges(lim_var_data, 'fd')
+        assert_equal(edges_fd, np.array([0, 100]))
+
+        edges_sturges = histogram_bin_edges(lim_var_data, 'sturges')
+        assert_equal(edges_sturges, np.linspace(0, 100, 12))
+
+    def test_outlier(self):
+        """
+        Check the FD, Scott and Doane with outliers.
+
+        The FD estimates a smaller binwidth since it's less affected by
+        outliers. Since the range is so (artificially) large, this means more
+        bins, most of which will be empty, but the data of interest usually is
+        unaffected. The Scott estimator is more affected and returns fewer bins,
+        despite most of the variance being in one area of the data. The Doane
+        estimator lies somewhere between the other two.
+        """
+        xcenter = np.linspace(-10, 10, 50)
+        outlier_dataset = np.hstack((np.linspace(-110, -100, 5), xcenter))
+
+        outlier_resultdict = {'fd': 21, 'scott': 5, 'doane': 11, 'stone': 6}
+
+        for estimator, numbins in outlier_resultdict.items():
+            a, b = np.histogram(outlier_dataset, estimator)
+            assert_equal(len(a), numbins)
+
+    def test_scott_vs_stone(self):
+        # Verify that Scott's rule and Stone's rule converges for normally
+        # distributed data
+
+        def nbins_ratio(seed, size):
+            rng = np.random.RandomState(seed)
+            x = rng.normal(loc=0, scale=2, size=size)
+            a, b = len(np.histogram(x, 'stone')[0]), len(np.histogram(x, 'scott')[0])
+            return a / (a + b)
+
+        geom_space = np.geomspace(start=10, stop=100, num=4).round().astype(int)
+        ll = [[nbins_ratio(seed, size) for size in geom_space] for seed in range(10)]
+
+        # the average difference between the two methods decreases as the dataset
+        # size increases.
+        avg = abs(np.mean(ll, axis=0) - 0.5)
+        assert_almost_equal(avg, [0.15, 0.09, 0.08, 0.03], decimal=2)
+
+    def test_simple_range(self):
+        """
+        Straightforward testing with a mixture of linspace data (for
+        consistency). Adding in a 3rd mixture that will then be
+        completely ignored. All test values have been precomputed and
+        the shouldn't change.
+        """
+        # some basic sanity checking, with some fixed data.
+        # Checking for the correct number of bins
+        basic_test = {
+                      50:   {'fd': 8,  'scott': 8,  'rice': 15,
+                             'sturges': 14, 'auto': 14, 'stone': 8},
+                      500:  {'fd': 15, 'scott': 16, 'rice': 32,
+                             'sturges': 20, 'auto': 20, 'stone': 80},
+                      5000: {'fd': 33, 'scott': 33, 'rice': 69,
+                             'sturges': 27, 'auto': 33, 'stone': 80}
+                     }
+
+        for testlen, expectedResults in basic_test.items():
+            # create some sort of non uniform data to test with
+            # (3 peak uniform mixture)
+            x1 = np.linspace(-10, -1, testlen // 5 * 2)
+            x2 = np.linspace(1, 10, testlen // 5 * 3)
+            x3 = np.linspace(-100, -50, testlen)
+            x = np.hstack((x1, x2, x3))
+            for estimator, numbins in expectedResults.items():
+                a, b = np.histogram(x, estimator, range=(-20, 20))
+                msg = f"For the {estimator} estimator"
+                msg += f" with datasize of {testlen}"
+                assert_equal(len(a), numbins, err_msg=msg)
+
+    @pytest.mark.parametrize("bins", ['auto', 'fd', 'doane', 'scott',
+                                      'stone', 'rice', 'sturges'])
+    def test_signed_integer_data(self, bins):
+        # Regression test for gh-14379.
+        a = np.array([-2, 0, 127], dtype=np.int8)
+        hist, edges = np.histogram(a, bins=bins)
+        hist32, edges32 = np.histogram(a.astype(np.int32), bins=bins)
+        assert_array_equal(hist, hist32)
+        assert_array_equal(edges, edges32)
+
+    @pytest.mark.parametrize("bins", ['auto', 'fd', 'doane', 'scott',
+                                      'stone', 'rice', 'sturges'])
+    def test_integer(self, bins):
+        """
+        Test that bin width for integer data is at least 1.
+        """
+        with warnings.catch_warnings():
+            if bins == 'stone':
+                warnings.simplefilter('ignore', RuntimeWarning)
+            assert_equal(
+                np.histogram_bin_edges(np.tile(np.arange(9), 1000), bins),
+                np.arange(9))
+
+    def test_integer_non_auto(self):
+        """
+        Test that the bin-width>=1 requirement *only* applies to auto binning.
+        """
+        assert_equal(
+            np.histogram_bin_edges(np.tile(np.arange(9), 1000), 16),
+            np.arange(17) / 2)
+        assert_equal(
+            np.histogram_bin_edges(np.tile(np.arange(9), 1000), [.1, .2]),
+            [.1, .2])
+
+    def test_simple_weighted(self):
+        """
+        Check that weighted data raises a TypeError
+        """
+        estimator_list = ['fd', 'scott', 'rice', 'sturges', 'auto']
+        for estimator in estimator_list:
+            assert_raises(TypeError, histogram, [1, 2, 3],
+                          estimator, weights=[1, 2, 3])
+
+
+class TestHistogramdd:
+
+    def test_simple(self):
+        x = np.array([[-.5, .5, 1.5], [-.5, 1.5, 2.5], [-.5, 2.5, .5],
+                      [.5,  .5, 1.5], [.5,  1.5, 2.5], [.5,  2.5, 2.5]])
+        H, edges = histogramdd(x, (2, 3, 3),
+                               range=[[-1, 1], [0, 3], [0, 3]])
+        answer = np.array([[[0, 1, 0], [0, 0, 1], [1, 0, 0]],
+                           [[0, 1, 0], [0, 0, 1], [0, 0, 1]]])
+        assert_array_equal(H, answer)
+
+        # Check normalization
+        ed = [[-2, 0, 2], [0, 1, 2, 3], [0, 1, 2, 3]]
+        H, edges = histogramdd(x, bins=ed, density=True)
+        assert_(np.all(H == answer / 12.))
+
+        # Check that H has the correct shape.
+        H, edges = histogramdd(x, (2, 3, 4),
+                               range=[[-1, 1], [0, 3], [0, 4]],
+                               density=True)
+        answer = np.array([[[0, 1, 0, 0], [0, 0, 1, 0], [1, 0, 0, 0]],
+                           [[0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 1, 0]]])
+        assert_array_almost_equal(H, answer / 6., 4)
+        # Check that a sequence of arrays is accepted and H has the correct
+        # shape.
+        z = [np.squeeze(y) for y in np.split(x, 3, axis=1)]
+        H, edges = histogramdd(
+            z, bins=(4, 3, 2), range=[[-2, 2], [0, 3], [0, 2]])
+        answer = np.array([[[0, 0], [0, 0], [0, 0]],
+                           [[0, 1], [0, 0], [1, 0]],
+                           [[0, 1], [0, 0], [0, 0]],
+                           [[0, 0], [0, 0], [0, 0]]])
+        assert_array_equal(H, answer)
+
+        Z = np.zeros((5, 5, 5))
+        Z[list(range(5)), list(range(5)), list(range(5))] = 1.
+        H, edges = histogramdd([np.arange(5), np.arange(5), np.arange(5)], 5)
+        assert_array_equal(H, Z)
+
+    def test_shape_3d(self):
+        # All possible permutations for bins of different lengths in 3D.
+        bins = ((5, 4, 6), (6, 4, 5), (5, 6, 4), (4, 6, 5), (6, 5, 4),
+                (4, 5, 6))
+        r = np.random.rand(10, 3)
+        for b in bins:
+            H, edges = histogramdd(r, b)
+            assert_(H.shape == b)
+
+    def test_shape_4d(self):
+        # All possible permutations for bins of different lengths in 4D.
+        bins = ((7, 4, 5, 6), (4, 5, 7, 6), (5, 6, 4, 7), (7, 6, 5, 4),
+                (5, 7, 6, 4), (4, 6, 7, 5), (6, 5, 7, 4), (7, 5, 4, 6),
+                (7, 4, 6, 5), (6, 4, 7, 5), (6, 7, 5, 4), (4, 6, 5, 7),
+                (4, 7, 5, 6), (5, 4, 6, 7), (5, 7, 4, 6), (6, 7, 4, 5),
+                (6, 5, 4, 7), (4, 7, 6, 5), (4, 5, 6, 7), (7, 6, 4, 5),
+                (5, 4, 7, 6), (5, 6, 7, 4), (6, 4, 5, 7), (7, 5, 6, 4))
+
+        r = np.random.rand(10, 4)
+        for b in bins:
+            H, edges = histogramdd(r, b)
+            assert_(H.shape == b)
+
+    def test_weights(self):
+        v = np.random.rand(100, 2)
+        hist, edges = histogramdd(v)
+        n_hist, edges = histogramdd(v, density=True)
+        w_hist, edges = histogramdd(v, weights=np.ones(100))
+        assert_array_equal(w_hist, hist)
+        w_hist, edges = histogramdd(v, weights=np.ones(100) * 2, density=True)
+        assert_array_equal(w_hist, n_hist)
+        w_hist, edges = histogramdd(v, weights=np.ones(100, int) * 2)
+        assert_array_equal(w_hist, 2 * hist)
+
+    def test_identical_samples(self):
+        x = np.zeros((10, 2), int)
+        hist, edges = histogramdd(x, bins=2)
+        assert_array_equal(edges[0], np.array([-0.5, 0., 0.5]))
+
+    def test_empty(self):
+        a, b = histogramdd([[], []], bins=([0, 1], [0, 1]))
+        assert_array_max_ulp(a, np.array([[0.]]))
+        a, b = np.histogramdd([[], [], []], bins=2)
+        assert_array_max_ulp(a, np.zeros((2, 2, 2)))
+
+    def test_bins_errors(self):
+        # There are two ways to specify bins. Check for the right errors
+        # when mixing those.
+        x = np.arange(8).reshape(2, 4)
+        assert_raises(ValueError, np.histogramdd, x, bins=[-1, 2, 4, 5])
+        assert_raises(ValueError, np.histogramdd, x, bins=[1, 0.99, 1, 1])
+        assert_raises(
+            ValueError, np.histogramdd, x, bins=[1, 1, 1, [1, 2, 3, -3]])
+        assert_(np.histogramdd(x, bins=[1, 1, 1, [1, 2, 3, 4]]))
+
+    def test_inf_edges(self):
+        # Test using +/-inf bin edges works. See #1788.
+        with np.errstate(invalid='ignore'):
+            x = np.arange(6).reshape(3, 2)
+            expected = np.array([[1, 0], [0, 1], [0, 1]])
+            h, e = np.histogramdd(x, bins=[3, [-np.inf, 2, 10]])
+            assert_allclose(h, expected)
+            h, e = np.histogramdd(x, bins=[3, np.array([-1, 2, np.inf])])
+            assert_allclose(h, expected)
+            h, e = np.histogramdd(x, bins=[3, [-np.inf, 3, np.inf]])
+            assert_allclose(h, expected)
+
+    def test_rightmost_binedge(self):
+        # Test event very close to rightmost binedge. See Github issue #4266
+        x = [0.9999999995]
+        bins = [[0., 0.5, 1.0]]
+        hist, _ = histogramdd(x, bins=bins)
+        assert_(hist[0] == 0.0)
+        assert_(hist[1] == 1.)
+        x = [1.0]
+        bins = [[0., 0.5, 1.0]]
+        hist, _ = histogramdd(x, bins=bins)
+        assert_(hist[0] == 0.0)
+        assert_(hist[1] == 1.)
+        x = [1.0000000001]
+        bins = [[0., 0.5, 1.0]]
+        hist, _ = histogramdd(x, bins=bins)
+        assert_(hist[0] == 0.0)
+        assert_(hist[1] == 0.0)
+        x = [1.0001]
+        bins = [[0., 0.5, 1.0]]
+        hist, _ = histogramdd(x, bins=bins)
+        assert_(hist[0] == 0.0)
+        assert_(hist[1] == 0.0)
+
+    def test_finite_range(self):
+        vals = np.random.random((100, 3))
+        histogramdd(vals, range=[[0.0, 1.0], [0.25, 0.75], [0.25, 0.5]])
+        assert_raises(ValueError, histogramdd, vals,
+                      range=[[0.0, 1.0], [0.25, 0.75], [0.25, np.inf]])
+        assert_raises(ValueError, histogramdd, vals,
+                      range=[[0.0, 1.0], [np.nan, 0.75], [0.25, 0.5]])
+
+    def test_equal_edges(self):
+        """ Test that adjacent entries in an edge array can be equal """
+        x = np.array([0, 1, 2])
+        y = np.array([0, 1, 2])
+        x_edges = np.array([0, 2, 2])
+        y_edges = 1
+        hist, edges = histogramdd((x, y), bins=(x_edges, y_edges))
+
+        hist_expected = np.array([
+            [2.],
+            [1.],  # x == 2 falls in the final bin
+        ])
+        assert_equal(hist, hist_expected)
+
+    def test_edge_dtype(self):
+        """ Test that if an edge array is input, its type is preserved """
+        x = np.array([0, 10, 20])
+        y = x / 10
+        x_edges = np.array([0, 5, 15, 20])
+        y_edges = x_edges / 10
+        hist, edges = histogramdd((x, y), bins=(x_edges, y_edges))
+
+        assert_equal(edges[0].dtype, x_edges.dtype)
+        assert_equal(edges[1].dtype, y_edges.dtype)
+
+    def test_large_integers(self):
+        big = 2**60  # Too large to represent with a full precision float
+
+        x = np.array([0], np.int64)
+        x_edges = np.array([-1, +1], np.int64)
+        y = big + x
+        y_edges = big + x_edges
+
+        hist, edges = histogramdd((x, y), bins=(x_edges, y_edges))
+
+        assert_equal(hist[0, 0], 1)
+
+    def test_density_non_uniform_2d(self):
+        # Defines the following grid:
+        #
+        #    0 2     8
+        #   0+-+-----+
+        #    + |     +
+        #    + |     +
+        #   6+-+-----+
+        #   8+-+-----+
+        x_edges = np.array([0, 2, 8])
+        y_edges = np.array([0, 6, 8])
+        relative_areas = np.array([
+            [3, 9],
+            [1, 3]])
+
+        # ensure the number of points in each region is proportional to its area
+        x = np.array([1] + [1] * 3 + [7] * 3 + [7] * 9)
+        y = np.array([7] + [1] * 3 + [7] * 3 + [1] * 9)
+
+        # sanity check that the above worked as intended
+        hist, edges = histogramdd((y, x), bins=(y_edges, x_edges))
+        assert_equal(hist, relative_areas)
+
+        # resulting histogram should be uniform, since counts and areas are proportional
+        hist, edges = histogramdd((y, x), bins=(y_edges, x_edges), density=True)
+        assert_equal(hist, 1 / (8 * 8))
+
+    def test_density_non_uniform_1d(self):
+        # compare to histogram to show the results are the same
+        v = np.arange(10)
+        bins = np.array([0, 1, 3, 6, 10])
+        hist, edges = histogram(v, bins, density=True)
+        hist_dd, edges_dd = histogramdd((v,), (bins,), density=True)
+        assert_equal(hist, hist_dd)
+        assert_equal(edges, edges_dd[0])
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_index_tricks.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_index_tricks.py
new file mode 100644
index 0000000000000000000000000000000000000000..6670635a3684785de07341f0cca7f404f298e629
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_index_tricks.py
@@ -0,0 +1,693 @@
+import pytest
+
+import numpy as np
+from numpy.lib._index_tricks_impl import (
+    c_,
+    diag_indices,
+    diag_indices_from,
+    fill_diagonal,
+    index_exp,
+    ix_,
+    mgrid,
+    ndenumerate,
+    ndindex,
+    ogrid,
+    r_,
+    s_,
+)
+from numpy.testing import (
+    assert_,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+class TestRavelUnravelIndex:
+    def test_basic(self):
+        assert_equal(np.unravel_index(2, (2, 2)), (1, 0))
+
+        # test that new shape argument works properly
+        assert_equal(np.unravel_index(indices=2,
+                                      shape=(2, 2)),
+                                      (1, 0))
+
+        # test that an invalid second keyword argument
+        # is properly handled, including the old name `dims`.
+        with assert_raises(TypeError):
+            np.unravel_index(indices=2, hape=(2, 2))
+
+        with assert_raises(TypeError):
+            np.unravel_index(2, hape=(2, 2))
+
+        with assert_raises(TypeError):
+            np.unravel_index(254, ims=(17, 94))
+
+        with assert_raises(TypeError):
+            np.unravel_index(254, dims=(17, 94))
+
+        assert_equal(np.ravel_multi_index((1, 0), (2, 2)), 2)
+        assert_equal(np.unravel_index(254, (17, 94)), (2, 66))
+        assert_equal(np.ravel_multi_index((2, 66), (17, 94)), 254)
+        assert_raises(ValueError, np.unravel_index, -1, (2, 2))
+        assert_raises(TypeError, np.unravel_index, 0.5, (2, 2))
+        assert_raises(ValueError, np.unravel_index, 4, (2, 2))
+        assert_raises(ValueError, np.ravel_multi_index, (-3, 1), (2, 2))
+        assert_raises(ValueError, np.ravel_multi_index, (2, 1), (2, 2))
+        assert_raises(ValueError, np.ravel_multi_index, (0, -3), (2, 2))
+        assert_raises(ValueError, np.ravel_multi_index, (0, 2), (2, 2))
+        assert_raises(TypeError, np.ravel_multi_index, (0.1, 0.), (2, 2))
+
+        assert_equal(np.unravel_index((2 * 3 + 1) * 6 + 4, (4, 3, 6)), [2, 1, 4])
+        assert_equal(
+            np.ravel_multi_index([2, 1, 4], (4, 3, 6)), (2 * 3 + 1) * 6 + 4)
+
+        arr = np.array([[3, 6, 6], [4, 5, 1]])
+        assert_equal(np.ravel_multi_index(arr, (7, 6)), [22, 41, 37])
+        assert_equal(
+            np.ravel_multi_index(arr, (7, 6), order='F'), [31, 41, 13])
+        assert_equal(
+            np.ravel_multi_index(arr, (4, 6), mode='clip'), [22, 23, 19])
+        assert_equal(np.ravel_multi_index(arr, (4, 4), mode=('clip', 'wrap')),
+                     [12, 13, 13])
+        assert_equal(np.ravel_multi_index((3, 1, 4, 1), (6, 7, 8, 9)), 1621)
+
+        assert_equal(np.unravel_index(np.array([22, 41, 37]), (7, 6)),
+                     [[3, 6, 6], [4, 5, 1]])
+        assert_equal(
+            np.unravel_index(np.array([31, 41, 13]), (7, 6), order='F'),
+            [[3, 6, 6], [4, 5, 1]])
+        assert_equal(np.unravel_index(1621, (6, 7, 8, 9)), [3, 1, 4, 1])
+
+    def test_empty_indices(self):
+        msg1 = 'indices must be integral: the provided empty sequence was'
+        msg2 = 'only int indices permitted'
+        assert_raises_regex(TypeError, msg1, np.unravel_index, [], (10, 3, 5))
+        assert_raises_regex(TypeError, msg1, np.unravel_index, (), (10, 3, 5))
+        assert_raises_regex(TypeError, msg2, np.unravel_index, np.array([]),
+                            (10, 3, 5))
+        assert_equal(np.unravel_index(np.array([], dtype=int), (10, 3, 5)),
+                     [[], [], []])
+        assert_raises_regex(TypeError, msg1, np.ravel_multi_index, ([], []),
+                            (10, 3))
+        assert_raises_regex(TypeError, msg1, np.ravel_multi_index, ([], ['abc']),
+                            (10, 3))
+        assert_raises_regex(TypeError, msg2, np.ravel_multi_index,
+                    (np.array([]), np.array([])), (5, 3))
+        assert_equal(np.ravel_multi_index(
+                (np.array([], dtype=int), np.array([], dtype=int)), (5, 3)), [])
+        assert_equal(np.ravel_multi_index(np.array([[], []], dtype=int),
+                     (5, 3)), [])
+
+    def test_big_indices(self):
+        # ravel_multi_index for big indices (issue #7546)
+        if np.intp == np.int64:
+            arr = ([1, 29], [3, 5], [3, 117], [19, 2],
+                   [2379, 1284], [2, 2], [0, 1])
+            assert_equal(
+                np.ravel_multi_index(arr, (41, 7, 120, 36, 2706, 8, 6)),
+                [5627771580, 117259570957])
+
+        # test unravel_index for big indices (issue #9538)
+        assert_raises(ValueError, np.unravel_index, 1, (2**32 - 1, 2**31 + 1))
+
+        # test overflow checking for too big array (issue #7546)
+        dummy_arr = ([0], [0])
+        half_max = np.iinfo(np.intp).max // 2
+        assert_equal(
+            np.ravel_multi_index(dummy_arr, (half_max, 2)), [0])
+        assert_raises(ValueError,
+            np.ravel_multi_index, dummy_arr, (half_max + 1, 2))
+        assert_equal(
+            np.ravel_multi_index(dummy_arr, (half_max, 2), order='F'), [0])
+        assert_raises(ValueError,
+            np.ravel_multi_index, dummy_arr, (half_max + 1, 2), order='F')
+
+    def test_dtypes(self):
+        # Test with different data types
+        for dtype in [np.int16, np.uint16, np.int32,
+                      np.uint32, np.int64, np.uint64]:
+            coords = np.array(
+                [[1, 0, 1, 2, 3, 4], [1, 6, 1, 3, 2, 0]], dtype=dtype)
+            shape = (5, 8)
+            uncoords = 8 * coords[0] + coords[1]
+            assert_equal(np.ravel_multi_index(coords, shape), uncoords)
+            assert_equal(coords, np.unravel_index(uncoords, shape))
+            uncoords = coords[0] + 5 * coords[1]
+            assert_equal(
+                np.ravel_multi_index(coords, shape, order='F'), uncoords)
+            assert_equal(coords, np.unravel_index(uncoords, shape, order='F'))
+
+            coords = np.array(
+                [[1, 0, 1, 2, 3, 4], [1, 6, 1, 3, 2, 0], [1, 3, 1, 0, 9, 5]],
+                dtype=dtype)
+            shape = (5, 8, 10)
+            uncoords = 10 * (8 * coords[0] + coords[1]) + coords[2]
+            assert_equal(np.ravel_multi_index(coords, shape), uncoords)
+            assert_equal(coords, np.unravel_index(uncoords, shape))
+            uncoords = coords[0] + 5 * (coords[1] + 8 * coords[2])
+            assert_equal(
+                np.ravel_multi_index(coords, shape, order='F'), uncoords)
+            assert_equal(coords, np.unravel_index(uncoords, shape, order='F'))
+
+    def test_clipmodes(self):
+        # Test clipmodes
+        assert_equal(
+            np.ravel_multi_index([5, 1, -1, 2], (4, 3, 7, 12), mode='wrap'),
+            np.ravel_multi_index([1, 1, 6, 2], (4, 3, 7, 12)))
+        assert_equal(np.ravel_multi_index([5, 1, -1, 2], (4, 3, 7, 12),
+                                          mode=(
+                                              'wrap', 'raise', 'clip', 'raise')),
+                     np.ravel_multi_index([1, 1, 0, 2], (4, 3, 7, 12)))
+        assert_raises(
+            ValueError, np.ravel_multi_index, [5, 1, -1, 2], (4, 3, 7, 12))
+
+    def test_writeability(self):
+        # gh-7269
+        x, y = np.unravel_index([1, 2, 3], (4, 5))
+        assert_(x.flags.writeable)
+        assert_(y.flags.writeable)
+
+    def test_0d(self):
+        # gh-580
+        x = np.unravel_index(0, ())
+        assert_equal(x, ())
+
+        assert_raises_regex(ValueError, "0d array", np.unravel_index, [0], ())
+        assert_raises_regex(
+            ValueError, "out of bounds", np.unravel_index, [1], ())
+
+    @pytest.mark.parametrize("mode", ["clip", "wrap", "raise"])
+    def test_empty_array_ravel(self, mode):
+        res = np.ravel_multi_index(
+                    np.zeros((3, 0), dtype=np.intp), (2, 1, 0), mode=mode)
+        assert res.shape == (0,)
+
+        with assert_raises(ValueError):
+            np.ravel_multi_index(
+                    np.zeros((3, 1), dtype=np.intp), (2, 1, 0), mode=mode)
+
+    def test_empty_array_unravel(self):
+        res = np.unravel_index(np.zeros(0, dtype=np.intp), (2, 1, 0))
+        # res is a tuple of three empty arrays
+        assert len(res) == 3
+        assert all(a.shape == (0,) for a in res)
+
+        with assert_raises(ValueError):
+            np.unravel_index([1], (2, 1, 0))
+
+    def test_regression_size_1_index(self):
+        # actually tests the nditer size one index tracking
+        # regression test for gh-29690
+        np.unravel_index(np.array([[1, 0, 1, 0]], dtype=np.uint32), (4,))
+
+class TestGrid:
+    def test_basic(self):
+        a = mgrid[-1:1:10j]
+        b = mgrid[-1:1:0.1]
+        assert_(a.shape == (10,))
+        assert_(b.shape == (20,))
+        assert_(a[0] == -1)
+        assert_almost_equal(a[-1], 1)
+        assert_(b[0] == -1)
+        assert_almost_equal(b[1] - b[0], 0.1, 11)
+        assert_almost_equal(b[-1], b[0] + 19 * 0.1, 11)
+        assert_almost_equal(a[1] - a[0], 2.0 / 9.0, 11)
+
+    def test_linspace_equivalence(self):
+        y, st = np.linspace(2, 10, retstep=True)
+        assert_almost_equal(st, 8 / 49.0)
+        assert_array_almost_equal(y, mgrid[2:10:50j], 13)
+
+    def test_nd(self):
+        c = mgrid[-1:1:10j, -2:2:10j]
+        d = mgrid[-1:1:0.1, -2:2:0.2]
+        assert_(c.shape == (2, 10, 10))
+        assert_(d.shape == (2, 20, 20))
+        assert_array_equal(c[0][0, :], -np.ones(10, 'd'))
+        assert_array_equal(c[1][:, 0], -2 * np.ones(10, 'd'))
+        assert_array_almost_equal(c[0][-1, :], np.ones(10, 'd'), 11)
+        assert_array_almost_equal(c[1][:, -1], 2 * np.ones(10, 'd'), 11)
+        assert_array_almost_equal(d[0, 1, :] - d[0, 0, :],
+                                  0.1 * np.ones(20, 'd'), 11)
+        assert_array_almost_equal(d[1, :, 1] - d[1, :, 0],
+                                  0.2 * np.ones(20, 'd'), 11)
+
+    def test_sparse(self):
+        grid_full = mgrid[-1:1:10j, -2:2:10j]
+        grid_sparse = ogrid[-1:1:10j, -2:2:10j]
+
+        # sparse grids can be made dense by broadcasting
+        grid_broadcast = np.broadcast_arrays(*grid_sparse)
+        for f, b in zip(grid_full, grid_broadcast):
+            assert_equal(f, b)
+
+    @pytest.mark.parametrize("start, stop, step, expected", [
+        (None, 10, 10j, (200, 10)),
+        (-10, 20, None, (1800, 30)),
+        ])
+    def test_mgrid_size_none_handling(self, start, stop, step, expected):
+        # regression test None value handling for
+        # start and step values used by mgrid;
+        # internally, this aims to cover previously
+        # unexplored code paths in nd_grid()
+        grid = mgrid[start:stop:step, start:stop:step]
+        # need a smaller grid to explore one of the
+        # untested code paths
+        grid_small = mgrid[start:stop:step]
+        assert_equal(grid.size, expected[0])
+        assert_equal(grid_small.size, expected[1])
+
+    def test_accepts_npfloating(self):
+        # regression test for #16466
+        grid64 = mgrid[0.1:0.33:0.1, ]
+        grid32 = mgrid[np.float32(0.1):np.float32(0.33):np.float32(0.1), ]
+        assert_array_almost_equal(grid64, grid32)
+        # At some point this was float64, but NEP 50 changed it:
+        assert grid32.dtype == np.float32
+        assert grid64.dtype == np.float64
+
+        # different code path for single slice
+        grid64 = mgrid[0.1:0.33:0.1]
+        grid32 = mgrid[np.float32(0.1):np.float32(0.33):np.float32(0.1)]
+        assert_(grid32.dtype == np.float64)
+        assert_array_almost_equal(grid64, grid32)
+
+    def test_accepts_longdouble(self):
+        # regression tests for #16945
+        grid64 = mgrid[0.1:0.33:0.1, ]
+        grid128 = mgrid[
+            np.longdouble(0.1):np.longdouble(0.33):np.longdouble(0.1),
+        ]
+        assert_(grid128.dtype == np.longdouble)
+        assert_array_almost_equal(grid64, grid128)
+
+        grid128c_a = mgrid[0:np.longdouble(1):3.4j]
+        grid128c_b = mgrid[0:np.longdouble(1):3.4j, ]
+        assert_(grid128c_a.dtype == grid128c_b.dtype == np.longdouble)
+        assert_array_equal(grid128c_a, grid128c_b[0])
+
+        # different code path for single slice
+        grid64 = mgrid[0.1:0.33:0.1]
+        grid128 = mgrid[
+            np.longdouble(0.1):np.longdouble(0.33):np.longdouble(0.1)
+        ]
+        assert_(grid128.dtype == np.longdouble)
+        assert_array_almost_equal(grid64, grid128)
+
+    def test_accepts_npcomplexfloating(self):
+        # Related to #16466
+        assert_array_almost_equal(
+            mgrid[0.1:0.3:3j, ], mgrid[0.1:0.3:np.complex64(3j), ]
+        )
+
+        # different code path for single slice
+        assert_array_almost_equal(
+            mgrid[0.1:0.3:3j], mgrid[0.1:0.3:np.complex64(3j)]
+        )
+
+        # Related to #16945
+        grid64_a = mgrid[0.1:0.3:3.3j]
+        grid64_b = mgrid[0.1:0.3:3.3j, ][0]
+        assert_(grid64_a.dtype == grid64_b.dtype == np.float64)
+        assert_array_equal(grid64_a, grid64_b)
+
+        grid128_a = mgrid[0.1:0.3:np.clongdouble(3.3j)]
+        grid128_b = mgrid[0.1:0.3:np.clongdouble(3.3j), ][0]
+        assert_(grid128_a.dtype == grid128_b.dtype == np.longdouble)
+        assert_array_equal(grid64_a, grid64_b)
+
+
+class TestConcatenator:
+    def test_1d(self):
+        assert_array_equal(r_[1, 2, 3, 4, 5, 6], np.array([1, 2, 3, 4, 5, 6]))
+        b = np.ones(5)
+        c = r_[b, 0, 0, b]
+        assert_array_equal(c, [1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1])
+
+    def test_mixed_type(self):
+        g = r_[10.1, 1:10]
+        assert_(g.dtype == 'f8')
+
+    def test_more_mixed_type(self):
+        g = r_[-10.1, np.array([1]), np.array([2, 3, 4]), 10.0]
+        assert_(g.dtype == 'f8')
+
+    def test_complex_step(self):
+        # Regression test for #12262
+        g = r_[0:36:100j]
+        assert_(g.shape == (100,))
+
+        # Related to #16466
+        g = r_[0:36:np.complex64(100j)]
+        assert_(g.shape == (100,))
+
+    def test_2d(self):
+        b = np.random.rand(5, 5)
+        c = np.random.rand(5, 5)
+        d = r_['1', b, c]  # append columns
+        assert_(d.shape == (5, 10))
+        assert_array_equal(d[:, :5], b)
+        assert_array_equal(d[:, 5:], c)
+        d = r_[b, c]
+        assert_(d.shape == (10, 5))
+        assert_array_equal(d[:5, :], b)
+        assert_array_equal(d[5:, :], c)
+
+    def test_0d(self):
+        assert_equal(r_[0, np.array(1), 2], [0, 1, 2])
+        assert_equal(r_[[0, 1, 2], np.array(3)], [0, 1, 2, 3])
+        assert_equal(r_[np.array(0), [1, 2, 3]], [0, 1, 2, 3])
+
+
+class TestNdenumerate:
+    def test_basic(self):
+        a = np.array([[1, 2], [3, 4]])
+        assert_equal(list(ndenumerate(a)),
+                     [((0, 0), 1), ((0, 1), 2), ((1, 0), 3), ((1, 1), 4)])
+
+
+class TestIndexExpression:
+    def test_regression_1(self):
+        # ticket #1196
+        a = np.arange(2)
+        assert_equal(a[:-1], a[s_[:-1]])
+        assert_equal(a[:-1], a[index_exp[:-1]])
+
+    def test_simple_1(self):
+        a = np.random.rand(4, 5, 6)
+
+        assert_equal(a[:, :3, [1, 2]], a[index_exp[:, :3, [1, 2]]])
+        assert_equal(a[:, :3, [1, 2]], a[s_[:, :3, [1, 2]]])
+
+
+class TestIx_:
+    def test_regression_1(self):
+        # Test empty untyped inputs create outputs of indexing type, gh-5804
+        a, = np.ix_(range(0))
+        assert_equal(a.dtype, np.intp)
+
+        a, = np.ix_([])
+        assert_equal(a.dtype, np.intp)
+
+        # but if the type is specified, don't change it
+        a, = np.ix_(np.array([], dtype=np.float32))
+        assert_equal(a.dtype, np.float32)
+
+    def test_shape_and_dtype(self):
+        sizes = (4, 5, 3, 2)
+        # Test both lists and arrays
+        for func in (range, np.arange):
+            arrays = np.ix_(*[func(sz) for sz in sizes])
+            for k, (a, sz) in enumerate(zip(arrays, sizes)):
+                assert_equal(a.shape[k], sz)
+                assert_(all(sh == 1 for j, sh in enumerate(a.shape) if j != k))
+                assert_(np.issubdtype(a.dtype, np.integer))
+
+    def test_bool(self):
+        bool_a = [True, False, True, True]
+        int_a, = np.nonzero(bool_a)
+        assert_equal(np.ix_(bool_a)[0], int_a)
+
+    def test_1d_only(self):
+        idx2d = [[1, 2, 3], [4, 5, 6]]
+        assert_raises(ValueError, np.ix_, idx2d)
+
+    def test_repeated_input(self):
+        length_of_vector = 5
+        x = np.arange(length_of_vector)
+        out = ix_(x, x)
+        assert_equal(out[0].shape, (length_of_vector, 1))
+        assert_equal(out[1].shape, (1, length_of_vector))
+        # check that input shape is not modified
+        assert_equal(x.shape, (length_of_vector,))
+
+
+def test_c_():
+    a = c_[np.array([[1, 2, 3]]), 0, 0, np.array([[4, 5, 6]])]
+    assert_equal(a, [[1, 2, 3, 0, 0, 4, 5, 6]])
+
+
+class TestFillDiagonal:
+    def test_basic(self):
+        a = np.zeros((3, 3), int)
+        fill_diagonal(a, 5)
+        assert_array_equal(
+            a, np.array([[5, 0, 0],
+                         [0, 5, 0],
+                         [0, 0, 5]])
+            )
+
+    def test_tall_matrix(self):
+        a = np.zeros((10, 3), int)
+        fill_diagonal(a, 5)
+        assert_array_equal(
+            a, np.array([[5, 0, 0],
+                         [0, 5, 0],
+                         [0, 0, 5],
+                         [0, 0, 0],
+                         [0, 0, 0],
+                         [0, 0, 0],
+                         [0, 0, 0],
+                         [0, 0, 0],
+                         [0, 0, 0],
+                         [0, 0, 0]])
+            )
+
+    def test_tall_matrix_wrap(self):
+        a = np.zeros((10, 3), int)
+        fill_diagonal(a, 5, True)
+        assert_array_equal(
+            a, np.array([[5, 0, 0],
+                         [0, 5, 0],
+                         [0, 0, 5],
+                         [0, 0, 0],
+                         [5, 0, 0],
+                         [0, 5, 0],
+                         [0, 0, 5],
+                         [0, 0, 0],
+                         [5, 0, 0],
+                         [0, 5, 0]])
+            )
+
+    def test_wide_matrix(self):
+        a = np.zeros((3, 10), int)
+        fill_diagonal(a, 5)
+        assert_array_equal(
+            a, np.array([[5, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+                         [0, 5, 0, 0, 0, 0, 0, 0, 0, 0],
+                         [0, 0, 5, 0, 0, 0, 0, 0, 0, 0]])
+            )
+
+    def test_operate_4d_array(self):
+        a = np.zeros((3, 3, 3, 3), int)
+        fill_diagonal(a, 4)
+        i = np.array([0, 1, 2])
+        assert_equal(np.where(a != 0), (i, i, i, i))
+
+    def test_low_dim_handling(self):
+        # raise error with low dimensionality
+        a = np.zeros(3, int)
+        with assert_raises_regex(ValueError, "at least 2-d"):
+            fill_diagonal(a, 5)
+
+    def test_hetero_shape_handling(self):
+        # raise error with high dimensionality and
+        # shape mismatch
+        a = np.zeros((3, 3, 7, 3), int)
+        with assert_raises_regex(ValueError, "equal length"):
+            fill_diagonal(a, 2)
+
+
+def test_diag_indices():
+    di = diag_indices(4)
+    a = np.array([[1, 2, 3, 4],
+                  [5, 6, 7, 8],
+                  [9, 10, 11, 12],
+                  [13, 14, 15, 16]])
+    a[di] = 100
+    assert_array_equal(
+        a, np.array([[100, 2, 3, 4],
+                     [5, 100, 7, 8],
+                     [9, 10, 100, 12],
+                     [13, 14, 15, 100]])
+        )
+
+    # Now, we create indices to manipulate a 3-d array:
+    d3 = diag_indices(2, 3)
+
+    # And use it to set the diagonal of a zeros array to 1:
+    a = np.zeros((2, 2, 2), int)
+    a[d3] = 1
+    assert_array_equal(
+        a, np.array([[[1, 0],
+                      [0, 0]],
+                     [[0, 0],
+                      [0, 1]]])
+        )
+
+
+class TestDiagIndicesFrom:
+
+    def test_diag_indices_from(self):
+        x = np.random.random((4, 4))
+        r, c = diag_indices_from(x)
+        assert_array_equal(r, np.arange(4))
+        assert_array_equal(c, np.arange(4))
+
+    def test_error_small_input(self):
+        x = np.ones(7)
+        with assert_raises_regex(ValueError, "at least 2-d"):
+            diag_indices_from(x)
+
+    def test_error_shape_mismatch(self):
+        x = np.zeros((3, 3, 2, 3), int)
+        with assert_raises_regex(ValueError, "equal length"):
+            diag_indices_from(x)
+
+
+def test_ndindex():
+    x = list(ndindex(1, 2, 3))
+    expected = [ix for ix, e in ndenumerate(np.zeros((1, 2, 3)))]
+    assert_array_equal(x, expected)
+
+    x = list(ndindex((1, 2, 3)))
+    assert_array_equal(x, expected)
+
+    # Test use of scalars and tuples
+    x = list(ndindex((3,)))
+    assert_array_equal(x, list(ndindex(3)))
+
+    # Make sure size argument is optional
+    x = list(ndindex())
+    assert_equal(x, [()])
+
+    x = list(ndindex(()))
+    assert_equal(x, [()])
+
+    # Make sure 0-sized ndindex works correctly
+    x = list(ndindex(*[0]))
+    assert_equal(x, [])
+
+
+def test_ndindex_zero_dimensions_explicit():
+    """Test ndindex produces empty iterators for explicit
+    zero-length dimensions."""
+    assert list(np.ndindex(0, 3)) == []
+    assert list(np.ndindex(3, 0, 2)) == []
+    assert list(np.ndindex(0)) == []
+
+
+@pytest.mark.parametrize("bad_shape", [2.5, "2", [2, 3], (2.0, 3)])
+def test_ndindex_non_integer_dimensions(bad_shape):
+    """Test that non-integer dimensions raise TypeError."""
+    with pytest.raises(TypeError):
+        # Passing invalid_shape_arg directly to ndindex. It will try to use it
+        # as a dimension and should trigger a TypeError.
+        list(np.ndindex(bad_shape))
+
+
+def test_ndindex_stop_iteration_behavior():
+    """Test that StopIteration is raised properly after exhaustion."""
+    it = np.ndindex(2, 2)
+    # Exhaust the iterator
+    list(it)
+    # Should raise StopIteration on subsequent calls
+    with pytest.raises(StopIteration):
+        next(it)
+
+
+def test_ndindex_iterator_independence():
+    """Test that each ndindex instance creates independent iterators."""
+    shape = (2, 3)
+    iter1 = np.ndindex(*shape)
+    iter2 = np.ndindex(*shape)
+
+    next(iter1)
+    next(iter1)
+
+    assert_equal(next(iter2), (0, 0))
+    assert_equal(next(iter1), (0, 2))
+
+
+def test_ndindex_tuple_vs_args_consistency():
+    """Test that ndindex(shape) and ndindex(*shape) produce same results."""
+    # Single dimension
+    assert_equal(list(np.ndindex(5)), list(np.ndindex((5,))))
+
+    # Multiple dimensions
+    assert_equal(list(np.ndindex(2, 3)), list(np.ndindex((2, 3))))
+
+    # Complex shape
+    shape = (2, 1, 4)
+    assert_equal(list(np.ndindex(*shape)), list(np.ndindex(shape)))
+
+
+def test_ndindex_against_ndenumerate_compatibility():
+    """Test ndindex produces same indices as ndenumerate."""
+    for shape in [(1, 2, 3), (3,), (2, 2), ()]:
+        ndindex_result = list(np.ndindex(shape))
+        ndenumerate_indices = [ix for ix, _ in np.ndenumerate(np.zeros(shape))]
+        assert_array_equal(ndindex_result, ndenumerate_indices)
+
+
+def test_ndindex_multidimensional_correctness():
+    """Test ndindex produces correct indices for multidimensional arrays."""
+    shape = (2, 1, 3)
+    result = list(np.ndindex(*shape))
+    expected = [
+        (0, 0, 0),
+        (0, 0, 1),
+        (0, 0, 2),
+        (1, 0, 0),
+        (1, 0, 1),
+        (1, 0, 2),
+    ]
+    assert_equal(result, expected)
+
+
+def test_ndindex_large_dimensions_behavior():
+    """Test ndindex behaves correctly when initialized with large dimensions."""
+    large_shape = (1000, 1000)
+    iter_obj = np.ndindex(*large_shape)
+    first_element = next(iter_obj)
+    assert_equal(first_element, (0, 0))
+
+
+def test_ndindex_empty_iterator_behavior():
+    """Test detailed behavior of empty iterators."""
+    empty_iter = np.ndindex(0, 5)
+    assert_equal(list(empty_iter), [])
+
+    empty_iter2 = np.ndindex(3, 0, 2)
+    with pytest.raises(StopIteration):
+        next(empty_iter2)
+
+
+@pytest.mark.parametrize(
+    "negative_shape_arg",
+    [
+        (-1,),  # Single negative dimension
+        (2, -3, 4),  # Negative dimension in the middle
+        (5, 0, -2),  # Mix of valid (0) and invalid (negative) dimensions
+    ],
+)
+def test_ndindex_negative_dimensions(negative_shape_arg):
+    """Test that negative dimensions raise ValueError."""
+    with pytest.raises(ValueError):
+        ndindex(negative_shape_arg)
+
+
+def test_ndindex_empty_shape():
+    import numpy as np
+    # ndindex() and ndindex(()) should return a single empty tuple
+    assert list(np.ndindex()) == [()]
+    assert list(np.ndindex(())) == [()]
+
+def test_ndindex_negative_dim_raises():
+    # ndindex(-1) should raise a ValueError
+    with pytest.raises(ValueError):
+        list(np.ndindex(-1))
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_io.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_io.py
new file mode 100644
index 0000000000000000000000000000000000000000..49667092c827b7e3da20b1a16db4c26de2658d04
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_io.py
@@ -0,0 +1,2857 @@
+import gc
+import gzip
+import locale
+import os
+import re
+import sys
+import threading
+import time
+import warnings
+import zipfile
+from ctypes import c_bool
+from datetime import datetime
+from io import BytesIO, StringIO
+from multiprocessing import Value, get_context
+from pathlib import Path
+from tempfile import NamedTemporaryFile
+
+import pytest
+
+import numpy as np
+import numpy.ma as ma
+from numpy._utils import asbytes
+from numpy.exceptions import VisibleDeprecationWarning
+from numpy.lib import _npyio_impl
+from numpy.lib._iotools import ConversionWarning, ConverterError
+from numpy.lib._npyio_impl import recfromcsv, recfromtxt
+from numpy.ma.testutils import assert_equal
+from numpy.testing import (
+    HAS_REFCOUNT,
+    IS_PYPY,
+    IS_WASM,
+    assert_,
+    assert_allclose,
+    assert_array_equal,
+    assert_no_gc_cycles,
+    assert_no_warnings,
+    assert_raises,
+    assert_raises_regex,
+    break_cycles,
+    tempdir,
+    temppath,
+)
+from numpy.testing._private.utils import requires_memory
+
+
+class TextIO(BytesIO):
+    """Helper IO class.
+
+    Writes encode strings to bytes if needed, reads return bytes.
+    This makes it easier to emulate files opened in binary mode
+    without needing to explicitly convert strings to bytes in
+    setting up the test data.
+
+    """
+    def __init__(self, s=""):
+        BytesIO.__init__(self, asbytes(s))
+
+    def write(self, s):
+        BytesIO.write(self, asbytes(s))
+
+    def writelines(self, lines):
+        BytesIO.writelines(self, [asbytes(s) for s in lines])
+
+
+IS_64BIT = sys.maxsize > 2**32
+try:
+    import bz2
+    HAS_BZ2 = True
+except ImportError:
+    HAS_BZ2 = False
+try:
+    import lzma
+    HAS_LZMA = True
+except ImportError:
+    HAS_LZMA = False
+
+
+def strptime(s, fmt=None):
+    """
+    This function is available in the datetime module only from Python >=
+    2.5.
+
+    """
+    if isinstance(s, bytes):
+        s = s.decode("latin1")
+    return datetime(*time.strptime(s, fmt)[:3])
+
+
+class RoundtripTest:
+    def roundtrip(self, save_func, *args, **kwargs):
+        """
+        save_func : callable
+            Function used to save arrays to file.
+        file_on_disk : bool
+            If true, store the file on disk, instead of in a
+            string buffer.
+        save_kwds : dict
+            Parameters passed to `save_func`.
+        load_kwds : dict
+            Parameters passed to `numpy.load`.
+        args : tuple of arrays
+            Arrays stored to file.
+
+        """
+        save_kwds = kwargs.get('save_kwds', {})
+        load_kwds = kwargs.get('load_kwds', {"allow_pickle": True})
+        file_on_disk = kwargs.get('file_on_disk', False)
+
+        if file_on_disk:
+            target_file = NamedTemporaryFile(delete=False)
+            load_file = target_file.name
+        else:
+            target_file = BytesIO()
+            load_file = target_file
+
+        try:
+            arr = args
+
+            save_func(target_file, *arr, **save_kwds)
+            target_file.flush()
+            target_file.seek(0)
+
+            if sys.platform == 'win32' and not isinstance(target_file, BytesIO):
+                target_file.close()
+
+            arr_reloaded = np.load(load_file, **load_kwds)
+
+        finally:
+            if not isinstance(target_file, BytesIO):
+                target_file.close()
+                # holds an open file descriptor so it can't be deleted on win
+                if 'arr_reloaded' in locals():
+                    if not isinstance(arr_reloaded, np.lib.npyio.NpzFile):
+                        os.remove(target_file.name)
+
+        return arr, arr_reloaded
+
+    def check_roundtrips(self, a):
+        self.roundtrip(a)
+        self.roundtrip(a, file_on_disk=True)
+        self.roundtrip(np.asfortranarray(a))
+        self.roundtrip(np.asfortranarray(a), file_on_disk=True)
+        if a.shape[0] > 1:
+            # neither C nor Fortran contiguous for 2D arrays or more
+            self.roundtrip(np.asfortranarray(a)[1:])
+            self.roundtrip(np.asfortranarray(a)[1:], file_on_disk=True)
+
+    def test_array(self):
+        a = np.array([], float)
+        self.check_roundtrips(a)
+
+        a = np.array([[1, 2], [3, 4]], float)
+        self.check_roundtrips(a)
+
+        a = np.array([[1, 2], [3, 4]], int)
+        self.check_roundtrips(a)
+
+        a = np.array([[1 + 5j, 2 + 6j], [3 + 7j, 4 + 8j]], dtype=np.csingle)
+        self.check_roundtrips(a)
+
+        a = np.array([[1 + 5j, 2 + 6j], [3 + 7j, 4 + 8j]], dtype=np.cdouble)
+        self.check_roundtrips(a)
+
+    def test_array_object(self):
+        a = np.array([], object)
+        self.check_roundtrips(a)
+
+        a = np.array([[1, 2], [3, 4]], object)
+        self.check_roundtrips(a)
+
+    def test_1D(self):
+        a = np.array([1, 2, 3, 4], int)
+        self.roundtrip(a)
+
+    @pytest.mark.skipif(sys.platform == 'win32', reason="Fails on Win32")
+    def test_mmap(self):
+        a = np.array([[1, 2.5], [4, 7.3]])
+        self.roundtrip(a, file_on_disk=True, load_kwds={'mmap_mode': 'r'})
+
+        a = np.asfortranarray([[1, 2.5], [4, 7.3]])
+        self.roundtrip(a, file_on_disk=True, load_kwds={'mmap_mode': 'r'})
+
+    def test_record(self):
+        a = np.array([(1, 2), (3, 4)], dtype=[('x', 'i4'), ('y', 'i4')])
+        self.check_roundtrips(a)
+
+    @pytest.mark.slow
+    def test_format_2_0(self):
+        dt = [(("%d" % i) * 100, float) for i in range(500)]
+        a = np.ones(1000, dtype=dt)
+        with warnings.catch_warnings(record=True):
+            warnings.filterwarnings('always', '', UserWarning)
+            self.check_roundtrips(a)
+
+
+class TestSaveLoad(RoundtripTest):
+    def roundtrip(self, *args, **kwargs):
+        arr, arr_reloaded = RoundtripTest.roundtrip(self, np.save, *args, **kwargs)
+        assert_equal(arr[0], arr_reloaded)
+        assert_equal(arr[0].dtype, arr_reloaded.dtype)
+        assert_equal(arr[0].flags.fnc, arr_reloaded.flags.fnc)
+
+
+class TestSavezLoad(RoundtripTest):
+    def roundtrip(self, *args, **kwargs):
+        arr, arr_reloaded = RoundtripTest.roundtrip(self, np.savez, *args, **kwargs)
+        try:
+            for n, a in enumerate(arr):
+                reloaded = arr_reloaded['arr_%d' % n]
+                assert_equal(a, reloaded)
+                assert_equal(a.dtype, reloaded.dtype)
+                assert_equal(a.flags.fnc, reloaded.flags.fnc)
+        finally:
+            # delete tempfile, must be done here on windows
+            if arr_reloaded.fid:
+                arr_reloaded.fid.close()
+                os.remove(arr_reloaded.fid.name)
+
+    def test_load_non_npy(self):
+        """Test loading non-.npy files and name mapping in .npz."""
+        with temppath(prefix="numpy_test_npz_load_non_npy_", suffix=".npz") as tmp:
+            with zipfile.ZipFile(tmp, "w") as npz:
+                with npz.open("test1.npy", "w") as out_file:
+                    np.save(out_file, np.arange(10))
+                with npz.open("test2", "w") as out_file:
+                    np.save(out_file, np.arange(10))
+                with npz.open("metadata", "w") as out_file:
+                    out_file.write(b"Name: Test")
+            with np.load(tmp) as npz:
+                assert len(npz["test1"]) == 10
+                assert len(npz["test1.npy"]) == 10
+                assert len(npz["test2"]) == 10
+                assert npz["metadata"] == b"Name: Test"
+
+    @pytest.mark.skipif(IS_PYPY, reason="Hangs on PyPy")
+    @pytest.mark.skipif(not IS_64BIT, reason="Needs 64bit platform")
+    @pytest.mark.slow
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_big_arrays(self):
+        L = (1 << 31) + 100000
+        a = np.empty(L, dtype=np.uint8)
+        with temppath(prefix="numpy_test_big_arrays_", suffix=".npz") as tmp:
+            np.savez(tmp, a=a)
+            del a
+            npfile = np.load(tmp)
+            a = npfile['a']  # Should succeed
+            npfile.close()
+
+    def test_multiple_arrays(self):
+        a = np.array([[1, 2], [3, 4]], float)
+        b = np.array([[1 + 2j, 2 + 7j], [3 - 6j, 4 + 12j]], complex)
+        self.roundtrip(a, b)
+
+    def test_named_arrays(self):
+        a = np.array([[1, 2], [3, 4]], float)
+        b = np.array([[1 + 2j, 2 + 7j], [3 - 6j, 4 + 12j]], complex)
+        c = BytesIO()
+        np.savez(c, file_a=a, file_b=b)
+        c.seek(0)
+        l = np.load(c)
+        assert_equal(a, l['file_a'])
+        assert_equal(b, l['file_b'])
+
+    def test_tuple_getitem_raises(self):
+        # gh-23748
+        a = np.array([1, 2, 3])
+        f = BytesIO()
+        np.savez(f, a=a)
+        f.seek(0)
+        l = np.load(f)
+        with pytest.raises(KeyError, match="(1, 2)"):
+            l[1, 2]
+
+    def test_BagObj(self):
+        a = np.array([[1, 2], [3, 4]], float)
+        b = np.array([[1 + 2j, 2 + 7j], [3 - 6j, 4 + 12j]], complex)
+        c = BytesIO()
+        np.savez(c, file_a=a, file_b=b)
+        c.seek(0)
+        l = np.load(c)
+        assert_equal(sorted(dir(l.f)), ['file_a', 'file_b'])
+        assert_equal(a, l.f.file_a)
+        assert_equal(b, l.f.file_b)
+
+    @pytest.mark.skipif(IS_WASM, reason="Cannot start thread")
+    def test_savez_filename_clashes(self):
+        # Test that issue #852 is fixed
+        # and savez functions in multithreaded environment
+
+        def writer(error_list):
+            with temppath(suffix='.npz') as tmp:
+                arr = np.random.randn(500, 500)
+                try:
+                    np.savez(tmp, arr=arr)
+                except OSError as err:
+                    error_list.append(err)
+
+        errors = []
+        threads = [threading.Thread(target=writer, args=(errors,))
+                   for j in range(3)]
+        for t in threads:
+            t.start()
+        for t in threads:
+            t.join()
+
+        if errors:
+            raise AssertionError(errors)
+
+    def test_not_closing_opened_fid(self):
+        # Test that issue #2178 is fixed:
+        # verify could seek on 'loaded' file
+        with temppath(suffix='.npz') as tmp:
+            with open(tmp, 'wb') as fp:
+                np.savez(fp, data='LOVELY LOAD')
+            with open(tmp, 'rb', 10000) as fp:
+                fp.seek(0)
+                assert_(not fp.closed)
+                np.load(fp)['data']
+                # fp must not get closed by .load
+                assert_(not fp.closed)
+                fp.seek(0)
+                assert_(not fp.closed)
+
+    @pytest.mark.slow_pypy
+    def test_closing_fid(self):
+        # Test that issue #1517 (too many opened files) remains closed
+        # It might be a "weak" test since failed to get triggered on
+        # e.g. Debian sid of 2012 Jul 05 but was reported to
+        # trigger the failure on Ubuntu 10.04:
+        # http://projects.scipy.org/numpy/ticket/1517#comment:2
+        with temppath(suffix='.npz') as tmp:
+            np.savez(tmp, data='LOVELY LOAD')
+            # We need to check if the garbage collector can properly close
+            # numpy npz file returned by np.load when their reference count
+            # goes to zero.  Python running in debug mode raises a
+            # ResourceWarning when file closing is left to the garbage
+            # collector, so we catch the warnings.
+            with warnings.catch_warnings():
+                # TODO: specify exact message
+                warnings.simplefilter('ignore', ResourceWarning)
+                for i in range(1, 1025):
+                    try:
+                        np.load(tmp)["data"]
+                    except Exception as e:
+                        msg = f"Failed to load data from a file: {e}"
+                        raise AssertionError(msg)
+                    finally:
+                        if IS_PYPY:
+                            gc.collect()
+
+    def test_closing_zipfile_after_load(self):
+        # Check that zipfile owns file and can close it.  This needs to
+        # pass a file name to load for the test. On windows failure will
+        # cause a second error will be raised when the attempt to remove
+        # the open file is made.
+        prefix = 'numpy_test_closing_zipfile_after_load_'
+        with temppath(suffix='.npz', prefix=prefix) as tmp:
+            np.savez(tmp, lab='place holder')
+            data = np.load(tmp)
+            fp = data.zip.fp
+            data.close()
+            assert_(fp.closed)
+
+    @pytest.mark.parametrize("count, expected_repr", [
+        (1, "NpzFile {fname!r} with keys: arr_0"),
+        (5, "NpzFile {fname!r} with keys: arr_0, arr_1, arr_2, arr_3, arr_4"),
+        # _MAX_REPR_ARRAY_COUNT is 5, so files with more than 5 keys are
+        # expected to end in '...'
+        (6, "NpzFile {fname!r} with keys: arr_0, arr_1, arr_2, arr_3, arr_4..."),
+    ])
+    def test_repr_lists_keys(self, count, expected_repr):
+        a = np.array([[1, 2], [3, 4]], float)
+        with temppath(suffix='.npz') as tmp:
+            np.savez(tmp, *[a] * count)
+            l = np.load(tmp)
+            assert repr(l) == expected_repr.format(fname=tmp)
+            l.close()
+
+
+class TestSaveTxt:
+    def test_array(self):
+        a = np.array([[1, 2], [3, 4]], float)
+        fmt = "%.18e"
+        c = BytesIO()
+        np.savetxt(c, a, fmt=fmt)
+        c.seek(0)
+        assert_equal(c.readlines(),
+                     [asbytes((fmt + ' ' + fmt + '\n') % (1, 2)),
+                      asbytes((fmt + ' ' + fmt + '\n') % (3, 4))])
+
+        a = np.array([[1, 2], [3, 4]], int)
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%d')
+        c.seek(0)
+        assert_equal(c.readlines(), [b'1 2\n', b'3 4\n'])
+
+    def test_1D(self):
+        a = np.array([1, 2, 3, 4], int)
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%d')
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(lines, [b'1\n', b'2\n', b'3\n', b'4\n'])
+
+    def test_0D_3D(self):
+        c = BytesIO()
+        assert_raises(ValueError, np.savetxt, c, np.array(1))
+        assert_raises(ValueError, np.savetxt, c, np.array([[[1], [2]]]))
+
+    def test_structured(self):
+        a = np.array([(1, 2), (3, 4)], dtype=[('x', 'i4'), ('y', 'i4')])
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%d')
+        c.seek(0)
+        assert_equal(c.readlines(), [b'1 2\n', b'3 4\n'])
+
+    def test_structured_padded(self):
+        # gh-13297
+        a = np.array([(1, 2, 3), (4, 5, 6)], dtype=[
+            ('foo', 'i4'), ('bar', 'i4'), ('baz', 'i4')
+        ])
+        c = BytesIO()
+        np.savetxt(c, a[['foo', 'baz']], fmt='%d')
+        c.seek(0)
+        assert_equal(c.readlines(), [b'1 3\n', b'4 6\n'])
+
+    def test_multifield_view(self):
+        a = np.ones(1, dtype=[('x', 'i4'), ('y', 'i4'), ('z', 'f4')])
+        v = a[['x', 'z']]
+        with temppath(suffix='.npy') as path:
+            path = Path(path)
+            np.save(path, v)
+            data = np.load(path)
+            assert_array_equal(data, v)
+
+    def test_delimiter(self):
+        a = np.array([[1., 2.], [3., 4.]])
+        c = BytesIO()
+        np.savetxt(c, a, delimiter=',', fmt='%d')
+        c.seek(0)
+        assert_equal(c.readlines(), [b'1,2\n', b'3,4\n'])
+
+    def test_format(self):
+        a = np.array([(1, 2), (3, 4)])
+        c = BytesIO()
+        # Sequence of formats
+        np.savetxt(c, a, fmt=['%02d', '%3.1f'])
+        c.seek(0)
+        assert_equal(c.readlines(), [b'01 2.0\n', b'03 4.0\n'])
+
+        # A single multiformat string
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%02d : %3.1f')
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(lines, [b'01 : 2.0\n', b'03 : 4.0\n'])
+
+        # Specify delimiter, should be overridden
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%02d : %3.1f', delimiter=',')
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(lines, [b'01 : 2.0\n', b'03 : 4.0\n'])
+
+        # Bad fmt, should raise a ValueError
+        c = BytesIO()
+        assert_raises(ValueError, np.savetxt, c, a, fmt=99)
+
+    def test_header_footer(self):
+        # Test the functionality of the header and footer keyword argument.
+
+        c = BytesIO()
+        a = np.array([(1, 2), (3, 4)], dtype=int)
+        test_header_footer = 'Test header / footer'
+        # Test the header keyword argument
+        np.savetxt(c, a, fmt='%1d', header=test_header_footer)
+        c.seek(0)
+        assert_equal(c.read(),
+                     asbytes('# ' + test_header_footer + '\n1 2\n3 4\n'))
+        # Test the footer keyword argument
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%1d', footer=test_header_footer)
+        c.seek(0)
+        assert_equal(c.read(),
+                     asbytes('1 2\n3 4\n# ' + test_header_footer + '\n'))
+        # Test the commentstr keyword argument used on the header
+        c = BytesIO()
+        commentstr = '% '
+        np.savetxt(c, a, fmt='%1d',
+                   header=test_header_footer, comments=commentstr)
+        c.seek(0)
+        assert_equal(c.read(),
+                     asbytes(commentstr + test_header_footer + '\n' + '1 2\n3 4\n'))
+        # Test the commentstr keyword argument used on the footer
+        c = BytesIO()
+        commentstr = '% '
+        np.savetxt(c, a, fmt='%1d',
+                   footer=test_header_footer, comments=commentstr)
+        c.seek(0)
+        assert_equal(c.read(),
+                     asbytes('1 2\n3 4\n' + commentstr + test_header_footer + '\n'))
+
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    def test_file_roundtrip(self, filename_type):
+        with temppath() as name:
+            a = np.array([(1, 2), (3, 4)])
+            np.savetxt(filename_type(name), a)
+            b = np.loadtxt(filename_type(name))
+            assert_array_equal(a, b)
+
+    def test_complex_arrays(self):
+        ncols = 2
+        nrows = 2
+        a = np.zeros((ncols, nrows), dtype=np.complex128)
+        re = np.pi
+        im = np.e
+        a[:] = re + 1.0j * im
+
+        # One format only
+        c = BytesIO()
+        np.savetxt(c, a, fmt=' %+.3e')
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(
+            lines,
+            [b' ( +3.142e+00+ +2.718e+00j)  ( +3.142e+00+ +2.718e+00j)\n',
+             b' ( +3.142e+00+ +2.718e+00j)  ( +3.142e+00+ +2.718e+00j)\n'])
+
+        # One format for each real and imaginary part
+        c = BytesIO()
+        np.savetxt(c, a, fmt='  %+.3e' * 2 * ncols)
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(
+            lines,
+            [b'  +3.142e+00  +2.718e+00  +3.142e+00  +2.718e+00\n',
+             b'  +3.142e+00  +2.718e+00  +3.142e+00  +2.718e+00\n'])
+
+        # One format for each complex number
+        c = BytesIO()
+        np.savetxt(c, a, fmt=['(%.3e%+.3ej)'] * ncols)
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(
+            lines,
+            [b'(3.142e+00+2.718e+00j) (3.142e+00+2.718e+00j)\n',
+             b'(3.142e+00+2.718e+00j) (3.142e+00+2.718e+00j)\n'])
+
+    def test_complex_negative_exponent(self):
+        # Previous to 1.15, some formats generated x+-yj, gh 7895
+        ncols = 2
+        nrows = 2
+        a = np.zeros((ncols, nrows), dtype=np.complex128)
+        re = np.pi
+        im = np.e
+        a[:] = re - 1.0j * im
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%.3e')
+        c.seek(0)
+        lines = c.readlines()
+        assert_equal(
+            lines,
+            [b' (3.142e+00-2.718e+00j)  (3.142e+00-2.718e+00j)\n',
+             b' (3.142e+00-2.718e+00j)  (3.142e+00-2.718e+00j)\n'])
+
+    def test_custom_writer(self):
+
+        class CustomWriter(list):
+            def write(self, text):
+                self.extend(text.split(b'\n'))
+
+        w = CustomWriter()
+        a = np.array([(1, 2), (3, 4)])
+        np.savetxt(w, a)
+        b = np.loadtxt(w)
+        assert_array_equal(a, b)
+
+    def test_unicode(self):
+        utf8 = b'\xcf\x96'.decode('UTF-8')
+        a = np.array([utf8], dtype=np.str_)
+        with tempdir() as tmpdir:
+            # set encoding as on windows it may not be unicode even on py3
+            np.savetxt(os.path.join(tmpdir, 'test.csv'), a, fmt=['%s'],
+                       encoding='UTF-8')
+
+    def test_unicode_roundtrip(self):
+        utf8 = b'\xcf\x96'.decode('UTF-8')
+        a = np.array([utf8], dtype=np.str_)
+        # our gz wrapper support encoding
+        suffixes = ['', '.gz']
+        if HAS_BZ2:
+            suffixes.append('.bz2')
+        if HAS_LZMA:
+            suffixes.extend(['.xz', '.lzma'])
+        with tempdir() as tmpdir:
+            for suffix in suffixes:
+                np.savetxt(os.path.join(tmpdir, 'test.csv' + suffix), a,
+                           fmt=['%s'], encoding='UTF-16-LE')
+                b = np.loadtxt(os.path.join(tmpdir, 'test.csv' + suffix),
+                               encoding='UTF-16-LE', dtype=np.str_)
+                assert_array_equal(a, b)
+
+    def test_unicode_bytestream(self):
+        utf8 = b'\xcf\x96'.decode('UTF-8')
+        a = np.array([utf8], dtype=np.str_)
+        s = BytesIO()
+        np.savetxt(s, a, fmt=['%s'], encoding='UTF-8')
+        s.seek(0)
+        assert_equal(s.read().decode('UTF-8'), utf8 + '\n')
+
+    def test_unicode_stringstream(self):
+        utf8 = b'\xcf\x96'.decode('UTF-8')
+        a = np.array([utf8], dtype=np.str_)
+        s = StringIO()
+        np.savetxt(s, a, fmt=['%s'], encoding='UTF-8')
+        s.seek(0)
+        assert_equal(s.read(), utf8 + '\n')
+
+    @pytest.mark.parametrize("iotype", [StringIO, BytesIO])
+    def test_unicode_and_bytes_fmt(self, iotype):
+        # string type of fmt should not matter, see also gh-4053
+        a = np.array([1.])
+        s = iotype()
+        np.savetxt(s, a, fmt="%f")
+        s.seek(0)
+        if iotype is StringIO:
+            assert_equal(s.read(), "%f\n" % 1.)
+        else:
+            assert_equal(s.read(), b"%f\n" % 1.)
+
+    @pytest.mark.skipif(sys.platform == 'win32', reason="files>4GB may not work")
+    @pytest.mark.slow
+    @requires_memory(free_bytes=7e9)
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_large_zip(self):
+        def check_large_zip(memoryerror_raised):
+            memoryerror_raised.value = False
+            try:
+                # The test takes at least 6GB of memory, writes a file larger
+                # than 4GB. This tests the ``allowZip64`` kwarg to ``zipfile``
+                test_data = np.asarray([np.random.rand(
+                                        np.random.randint(50, 100), 4)
+                                        for i in range(800000)], dtype=object)
+                with tempdir() as tmpdir:
+                    np.savez(os.path.join(tmpdir, 'test.npz'),
+                             test_data=test_data)
+            except MemoryError:
+                memoryerror_raised.value = True
+                raise
+        # run in a subprocess to ensure memory is released on PyPy, see gh-15775
+        # Use an object in shared memory to re-raise the MemoryError exception
+        # in our process if needed, see gh-16889
+        memoryerror_raised = Value(c_bool)
+
+        # Since Python 3.8, the default start method for multiprocessing has
+        # been changed from 'fork' to 'spawn' on macOS, causing inconsistency
+        # on memory sharing model, leading to failed test for check_large_zip
+        ctx = get_context('fork')
+        p = ctx.Process(target=check_large_zip, args=(memoryerror_raised,))
+        p.start()
+        p.join()
+        if memoryerror_raised.value:
+            raise MemoryError("Child process raised a MemoryError exception")
+        # -9 indicates a SIGKILL, probably an OOM.
+        if p.exitcode == -9:
+            msg = "subprocess got a SIGKILL, apparently free memory was not sufficient"
+            pytest.xfail(msg)
+        assert p.exitcode == 0
+
+class LoadTxtBase:
+    def check_compressed(self, fopen, suffixes):
+        # Test that we can load data from a compressed file
+        wanted = np.arange(6).reshape((2, 3))
+        linesep = ('\n', '\r\n', '\r')
+        for sep in linesep:
+            data = '0 1 2' + sep + '3 4 5'
+            for suffix in suffixes:
+                with temppath(suffix=suffix) as name:
+                    with fopen(name, mode='wt', encoding='UTF-32-LE') as f:
+                        f.write(data)
+                    res = self.loadfunc(name, encoding='UTF-32-LE')
+                    assert_array_equal(res, wanted)
+                    with fopen(name, "rt",  encoding='UTF-32-LE') as f:
+                        res = self.loadfunc(f)
+                    assert_array_equal(res, wanted)
+
+    def test_compressed_gzip(self):
+        self.check_compressed(gzip.open, ('.gz',))
+
+    @pytest.mark.skipif(not HAS_BZ2, reason="Needs bz2")
+    def test_compressed_bz2(self):
+        self.check_compressed(bz2.open, ('.bz2',))
+
+    @pytest.mark.skipif(not HAS_LZMA, reason="Needs lzma")
+    def test_compressed_lzma(self):
+        self.check_compressed(lzma.open, ('.xz', '.lzma'))
+
+    def test_encoding(self):
+        with temppath() as path:
+            with open(path, "wb") as f:
+                f.write('0.\n1.\n2.'.encode("UTF-16"))
+            x = self.loadfunc(path, encoding="UTF-16")
+            assert_array_equal(x, [0., 1., 2.])
+
+    def test_stringload(self):
+        # umlaute
+        nonascii = b'\xc3\xb6\xc3\xbc\xc3\xb6'.decode("UTF-8")
+        with temppath() as path:
+            with open(path, "wb") as f:
+                f.write(nonascii.encode("UTF-16"))
+            x = self.loadfunc(path, encoding="UTF-16", dtype=np.str_)
+            assert_array_equal(x, nonascii)
+
+    def test_binary_decode(self):
+        utf16 = b'\xff\xfeh\x04 \x00i\x04 \x00j\x04'
+        v = self.loadfunc(BytesIO(utf16), dtype=np.str_, encoding='UTF-16')
+        assert_array_equal(v, np.array(utf16.decode('UTF-16').split()))
+
+    def test_converters_decode(self):
+        # test converters that decode strings
+        c = TextIO()
+        c.write(b'\xcf\x96')
+        c.seek(0)
+        x = self.loadfunc(c, dtype=np.str_, encoding="bytes",
+                          converters={0: lambda x: x.decode('UTF-8')})
+        a = np.array([b'\xcf\x96'.decode('UTF-8')])
+        assert_array_equal(x, a)
+
+    def test_converters_nodecode(self):
+        # test native string converters enabled by setting an encoding
+        utf8 = b'\xcf\x96'.decode('UTF-8')
+        with temppath() as path:
+            with open(path, 'wt', encoding='UTF-8') as f:
+                f.write(utf8)
+            x = self.loadfunc(path, dtype=np.str_,
+                              converters={0: lambda x: x + 't'},
+                              encoding='UTF-8')
+            a = np.array([utf8 + 't'])
+            assert_array_equal(x, a)
+
+
+class TestLoadTxt(LoadTxtBase):
+    loadfunc = staticmethod(np.loadtxt)
+
+    def setup_method(self):
+        # lower chunksize for testing
+        self.orig_chunk = _npyio_impl._loadtxt_chunksize
+        _npyio_impl._loadtxt_chunksize = 1
+
+    def teardown_method(self):
+        _npyio_impl._loadtxt_chunksize = self.orig_chunk
+
+    def test_record(self):
+        c = TextIO()
+        c.write('1 2\n3 4')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=[('x', np.int32), ('y', np.int32)])
+        a = np.array([(1, 2), (3, 4)], dtype=[('x', 'i4'), ('y', 'i4')])
+        assert_array_equal(x, a)
+
+        d = TextIO()
+        d.write('M 64 75.0\nF 25 60.0')
+        d.seek(0)
+        mydescriptor = {'names': ('gender', 'age', 'weight'),
+                        'formats': ('S1', 'i4', 'f4')}
+        b = np.array([('M', 64.0, 75.0),
+                      ('F', 25.0, 60.0)], dtype=mydescriptor)
+        y = np.loadtxt(d, dtype=mydescriptor)
+        assert_array_equal(y, b)
+
+    def test_array(self):
+        c = TextIO()
+        c.write('1 2\n3 4')
+
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int)
+        a = np.array([[1, 2], [3, 4]], int)
+        assert_array_equal(x, a)
+
+        c.seek(0)
+        x = np.loadtxt(c, dtype=float)
+        a = np.array([[1, 2], [3, 4]], float)
+        assert_array_equal(x, a)
+
+    def test_1D(self):
+        c = TextIO()
+        c.write('1\n2\n3\n4\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int)
+        a = np.array([1, 2, 3, 4], int)
+        assert_array_equal(x, a)
+
+        c = TextIO()
+        c.write('1,2,3,4\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',')
+        a = np.array([1, 2, 3, 4], int)
+        assert_array_equal(x, a)
+
+    def test_missing(self):
+        c = TextIO()
+        c.write('1,2,3,,5\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       converters={3: lambda s: int(s or - 999)})
+        a = np.array([1, 2, 3, -999, 5], int)
+        assert_array_equal(x, a)
+
+    def test_converters_with_usecols(self):
+        c = TextIO()
+        c.write('1,2,3,,5\n6,7,8,9,10\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       converters={3: lambda s: int(s or - 999)},
+                       usecols=(1, 3,))
+        a = np.array([[2, -999], [7, 9]], int)
+        assert_array_equal(x, a)
+
+    def test_comments_unicode(self):
+        c = TextIO()
+        c.write('# comment\n1,2,3,5\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       comments='#')
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+    def test_comments_byte(self):
+        c = TextIO()
+        c.write('# comment\n1,2,3,5\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       comments=b'#')
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+    def test_comments_multiple(self):
+        c = TextIO()
+        c.write('# comment\n1,2,3\n@ comment2\n4,5,6 // comment3')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       comments=['#', '@', '//'])
+        a = np.array([[1, 2, 3], [4, 5, 6]], int)
+        assert_array_equal(x, a)
+
+    @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                        reason="PyPy bug in error formatting")
+    def test_comments_multi_chars(self):
+        c = TextIO()
+        c.write('/* comment\n1,2,3,5\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       comments='/*')
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+        # Check that '/*' is not transformed to ['/', '*']
+        c = TextIO()
+        c.write('*/ comment\n1,2,3,5\n')
+        c.seek(0)
+        assert_raises(ValueError, np.loadtxt, c, dtype=int, delimiter=',',
+                      comments='/*')
+
+    def test_skiprows(self):
+        c = TextIO()
+        c.write('comment\n1,2,3,5\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       skiprows=1)
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+        c = TextIO()
+        c.write('# comment\n1,2,3,5\n')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       skiprows=1)
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+    def test_usecols(self):
+        a = np.array([[1, 2], [3, 4]], float)
+        c = BytesIO()
+        np.savetxt(c, a)
+        c.seek(0)
+        x = np.loadtxt(c, dtype=float, usecols=(1,))
+        assert_array_equal(x, a[:, 1])
+
+        a = np.array([[1, 2, 3], [3, 4, 5]], float)
+        c = BytesIO()
+        np.savetxt(c, a)
+        c.seek(0)
+        x = np.loadtxt(c, dtype=float, usecols=(1, 2))
+        assert_array_equal(x, a[:, 1:])
+
+        # Testing with arrays instead of tuples.
+        c.seek(0)
+        x = np.loadtxt(c, dtype=float, usecols=np.array([1, 2]))
+        assert_array_equal(x, a[:, 1:])
+
+        # Testing with an integer instead of a sequence
+        for int_type in [int, np.int8, np.int16,
+                         np.int32, np.int64, np.uint8, np.uint16,
+                         np.uint32, np.uint64]:
+            to_read = int_type(1)
+            c.seek(0)
+            x = np.loadtxt(c, dtype=float, usecols=to_read)
+            assert_array_equal(x, a[:, 1])
+
+        # Testing with some crazy custom integer type
+        class CrazyInt:
+            def __index__(self):
+                return 1
+
+        crazy_int = CrazyInt()
+        c.seek(0)
+        x = np.loadtxt(c, dtype=float, usecols=crazy_int)
+        assert_array_equal(x, a[:, 1])
+
+        c.seek(0)
+        x = np.loadtxt(c, dtype=float, usecols=(crazy_int,))
+        assert_array_equal(x, a[:, 1])
+
+        # Checking with dtypes defined converters.
+        data = '''JOE 70.1 25.3
+                BOB 60.5 27.9
+                '''
+        c = TextIO(data)
+        names = ['stid', 'temp']
+        dtypes = ['S4', 'f8']
+        arr = np.loadtxt(c, usecols=(0, 2), dtype=list(zip(names, dtypes)))
+        assert_equal(arr['stid'], [b"JOE", b"BOB"])
+        assert_equal(arr['temp'], [25.3, 27.9])
+
+        # Testing non-ints in usecols
+        c.seek(0)
+        bogus_idx = 1.5
+        assert_raises_regex(
+            TypeError,
+            f'^usecols must be.*{type(bogus_idx).__name__}',
+            np.loadtxt, c, usecols=bogus_idx
+            )
+
+        assert_raises_regex(
+            TypeError,
+            f'^usecols must be.*{type(bogus_idx).__name__}',
+            np.loadtxt, c, usecols=[0, bogus_idx, 0]
+            )
+
+    def test_bad_usecols(self):
+        with pytest.raises(OverflowError):
+            np.loadtxt(["1\n"], usecols=[2**64], delimiter=",")
+        with pytest.raises((ValueError, OverflowError)):
+            # Overflow error on 32bit platforms
+            np.loadtxt(["1\n"], usecols=[2**62], delimiter=",")
+        with pytest.raises(TypeError,
+                match="If a structured dtype .*. But 1 usecols were given and "
+                      "the number of fields is 3."):
+            np.loadtxt(["1,1\n"], dtype="i,2i", usecols=[0], delimiter=",")
+
+    def test_fancy_dtype(self):
+        c = TextIO()
+        c.write('1,2,3.0\n4,5,6.0\n')
+        c.seek(0)
+        dt = np.dtype([('x', int), ('y', [('t', int), ('s', float)])])
+        x = np.loadtxt(c, dtype=dt, delimiter=',')
+        a = np.array([(1, (2, 3.0)), (4, (5, 6.0))], dt)
+        assert_array_equal(x, a)
+
+    def test_shaped_dtype(self):
+        c = TextIO("aaaa  1.0  8.0  1 2 3 4 5 6")
+        dt = np.dtype([('name', 'S4'), ('x', float), ('y', float),
+                       ('block', int, (2, 3))])
+        x = np.loadtxt(c, dtype=dt)
+        a = np.array([('aaaa', 1.0, 8.0, [[1, 2, 3], [4, 5, 6]])],
+                     dtype=dt)
+        assert_array_equal(x, a)
+
+    def test_3d_shaped_dtype(self):
+        c = TextIO("aaaa  1.0  8.0  1 2 3 4 5 6 7 8 9 10 11 12")
+        dt = np.dtype([('name', 'S4'), ('x', float), ('y', float),
+                       ('block', int, (2, 2, 3))])
+        x = np.loadtxt(c, dtype=dt)
+        a = np.array([('aaaa', 1.0, 8.0,
+                       [[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]])],
+                     dtype=dt)
+        assert_array_equal(x, a)
+
+    def test_str_dtype(self):
+        # see gh-8033
+        c = ["str1", "str2"]
+
+        for dt in (str, np.bytes_):
+            a = np.array(["str1", "str2"], dtype=dt)
+            x = np.loadtxt(c, dtype=dt)
+            assert_array_equal(x, a)
+
+    def test_empty_file(self):
+        with pytest.warns(UserWarning, match="input contained no data"):
+            c = TextIO()
+            x = np.loadtxt(c)
+            assert_equal(x.shape, (0,))
+            x = np.loadtxt(c, dtype=np.int64)
+            assert_equal(x.shape, (0,))
+            assert_(x.dtype == np.int64)
+
+    def test_unused_converter(self):
+        c = TextIO()
+        c.writelines(['1 21\n', '3 42\n'])
+        c.seek(0)
+        data = np.loadtxt(c, usecols=(1,),
+                          converters={0: lambda s: int(s, 16)})
+        assert_array_equal(data, [21, 42])
+
+        c.seek(0)
+        data = np.loadtxt(c, usecols=(1,),
+                          converters={1: lambda s: int(s, 16)})
+        assert_array_equal(data, [33, 66])
+
+    def test_dtype_with_object(self):
+        # Test using an explicit dtype with an object
+        data = """ 1; 2001-01-01
+                   2; 2002-01-31 """
+        ndtype = [('idx', int), ('code', object)]
+        func = lambda s: strptime(s.strip(), "%Y-%m-%d")
+        converters = {1: func}
+        test = np.loadtxt(TextIO(data), delimiter=";", dtype=ndtype,
+                          converters=converters)
+        control = np.array(
+            [(1, datetime(2001, 1, 1)), (2, datetime(2002, 1, 31))],
+            dtype=ndtype)
+        assert_equal(test, control)
+
+    def test_uint64_type(self):
+        tgt = (9223372043271415339, 9223372043271415853)
+        c = TextIO()
+        c.write("%s %s" % tgt)
+        c.seek(0)
+        res = np.loadtxt(c, dtype=np.uint64)
+        assert_equal(res, tgt)
+
+    def test_int64_type(self):
+        tgt = (-9223372036854775807, 9223372036854775807)
+        c = TextIO()
+        c.write("%s %s" % tgt)
+        c.seek(0)
+        res = np.loadtxt(c, dtype=np.int64)
+        assert_equal(res, tgt)
+
+    def test_from_float_hex(self):
+        # IEEE doubles and floats only, otherwise the float32
+        # conversion may fail.
+        tgt = np.logspace(-10, 10, 5).astype(np.float32)
+        tgt = np.hstack((tgt, -tgt)).astype(float)
+        inp = '\n'.join(map(float.hex, tgt))
+        c = TextIO()
+        c.write(inp)
+        for dt in [float, np.float32]:
+            c.seek(0)
+            res = np.loadtxt(
+                c, dtype=dt, converters=float.fromhex, encoding="latin1")
+            assert_equal(res, tgt, err_msg=f"{dt}")
+
+    @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                        reason="PyPy bug in error formatting")
+    def test_default_float_converter_no_default_hex_conversion(self):
+        """
+        Ensure that fromhex is only used for values with the correct prefix and
+        is not called by default. Regression test related to gh-19598.
+        """
+        c = TextIO("a b c")
+        with pytest.raises(ValueError,
+                match=".*convert string 'a' to float64 at row 0, column 1"):
+            np.loadtxt(c)
+
+    @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                        reason="PyPy bug in error formatting")
+    def test_default_float_converter_exception(self):
+        """
+        Ensure that the exception message raised during failed floating point
+        conversion is correct. Regression test related to gh-19598.
+        """
+        c = TextIO("qrs tuv")  # Invalid values for default float converter
+        with pytest.raises(ValueError,
+                match="could not convert string 'qrs' to float64"):
+            np.loadtxt(c)
+
+    def test_from_complex(self):
+        tgt = (complex(1, 1), complex(1, -1))
+        c = TextIO()
+        c.write("%s %s" % tgt)
+        c.seek(0)
+        res = np.loadtxt(c, dtype=complex)
+        assert_equal(res, tgt)
+
+    def test_complex_misformatted(self):
+        # test for backward compatibility
+        # some complex formats used to generate x+-yj
+        a = np.zeros((2, 2), dtype=np.complex128)
+        re = np.pi
+        im = np.e
+        a[:] = re - 1.0j * im
+        c = BytesIO()
+        np.savetxt(c, a, fmt='%.16e')
+        c.seek(0)
+        txt = c.read()
+        c.seek(0)
+        # misformat the sign on the imaginary part, gh 7895
+        txt_bad = txt.replace(b'e+00-', b'e00+-')
+        assert_(txt_bad != txt)
+        c.write(txt_bad)
+        c.seek(0)
+        res = np.loadtxt(c, dtype=complex)
+        assert_equal(res, a)
+
+    def test_universal_newline(self):
+        with temppath() as name:
+            with open(name, 'w') as f:
+                f.write('1 21\r3 42\r')
+            data = np.loadtxt(name)
+        assert_array_equal(data, [[1, 21], [3, 42]])
+
+    def test_empty_field_after_tab(self):
+        c = TextIO()
+        c.write('1 \t2 \t3\tstart \n4\t5\t6\t  \n7\t8\t9.5\t')
+        c.seek(0)
+        dt = {'names': ('x', 'y', 'z', 'comment'),
+              'formats': ('<i4', '<i4', '<f4', '|S8')}
+        x = np.loadtxt(c, dtype=dt, delimiter='\t')
+        a = np.array([b'start ', b'  ', b''])
+        assert_array_equal(x['comment'], a)
+
+    def test_unpack_structured(self):
+        txt = TextIO("M 21 72\nF 35 58")
+        dt = {'names': ('a', 'b', 'c'), 'formats': ('|S1', '<i4', '<f4')}
+        a, b, c = np.loadtxt(txt, dtype=dt, unpack=True)
+        assert_(a.dtype.str == '|S1')
+        assert_(b.dtype.str == '<i4')
+        assert_(c.dtype.str == '<f4')
+        assert_array_equal(a, np.array([b'M', b'F']))
+        assert_array_equal(b, np.array([21, 35]))
+        assert_array_equal(c, np.array([72.,  58.]))
+
+    def test_ndmin_keyword(self):
+        c = TextIO()
+        c.write('1,2,3\n4,5,6')
+        c.seek(0)
+        assert_raises(ValueError, np.loadtxt, c, ndmin=3)
+        c.seek(0)
+        assert_raises(ValueError, np.loadtxt, c, ndmin=1.5)
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',', ndmin=1)
+        a = np.array([[1, 2, 3], [4, 5, 6]])
+        assert_array_equal(x, a)
+
+        d = TextIO()
+        d.write('0,1,2')
+        d.seek(0)
+        x = np.loadtxt(d, dtype=int, delimiter=',', ndmin=2)
+        assert_(x.shape == (1, 3))
+        d.seek(0)
+        x = np.loadtxt(d, dtype=int, delimiter=',', ndmin=1)
+        assert_(x.shape == (3,))
+        d.seek(0)
+        x = np.loadtxt(d, dtype=int, delimiter=',', ndmin=0)
+        assert_(x.shape == (3,))
+
+        e = TextIO()
+        e.write('0\n1\n2')
+        e.seek(0)
+        x = np.loadtxt(e, dtype=int, delimiter=',', ndmin=2)
+        assert_(x.shape == (3, 1))
+        e.seek(0)
+        x = np.loadtxt(e, dtype=int, delimiter=',', ndmin=1)
+        assert_(x.shape == (3,))
+        e.seek(0)
+        x = np.loadtxt(e, dtype=int, delimiter=',', ndmin=0)
+        assert_(x.shape == (3,))
+
+        # Test ndmin kw with empty file.
+        with pytest.warns(UserWarning, match="input contained no data"):
+            f = TextIO()
+            assert_(np.loadtxt(f, ndmin=2).shape == (0, 1,))
+            assert_(np.loadtxt(f, ndmin=1).shape == (0,))
+
+    def test_generator_source(self):
+        def count():
+            for i in range(10):
+                yield "%d" % i
+
+        res = np.loadtxt(count())
+        assert_array_equal(res, np.arange(10))
+
+    def test_bad_line(self):
+        c = TextIO()
+        c.write('1 2 3\n4 5 6\n2 3')
+        c.seek(0)
+
+        # Check for exception and that exception contains line number
+        assert_raises_regex(ValueError, "3", np.loadtxt, c)
+
+    def test_none_as_string(self):
+        # gh-5155, None should work as string when format demands it
+        c = TextIO()
+        c.write('100,foo,200\n300,None,400')
+        c.seek(0)
+        dt = np.dtype([('x', int), ('a', 'S10'), ('y', int)])
+        np.loadtxt(c, delimiter=',', dtype=dt, comments=None)  # Should succeed
+
+    @pytest.mark.skipif(locale.getpreferredencoding() == 'ANSI_X3.4-1968',
+                        reason="Wrong preferred encoding")
+    def test_binary_load(self):
+        butf8 = b"5,6,7,\xc3\x95scarscar\r\n15,2,3,hello\r\n"\
+                b"20,2,3,\xc3\x95scar\r\n"
+        sutf8 = butf8.decode("UTF-8").replace("\r", "").splitlines()
+        with temppath() as path:
+            with open(path, "wb") as f:
+                f.write(butf8)
+            with open(path, "rb") as f:
+                x = np.loadtxt(f, encoding="UTF-8", dtype=np.str_)
+            assert_array_equal(x, sutf8)
+            # test broken latin1 conversion people now rely on
+            with open(path, "rb") as f:
+                x = np.loadtxt(f, encoding="UTF-8", dtype="S")
+            x = [b'5,6,7,\xc3\x95scarscar', b'15,2,3,hello', b'20,2,3,\xc3\x95scar']
+            assert_array_equal(x, np.array(x, dtype="S"))
+
+    def test_max_rows(self):
+        c = TextIO()
+        c.write('1,2,3,5\n4,5,7,8\n2,1,4,5')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       max_rows=1)
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+    def test_max_rows_with_skiprows(self):
+        c = TextIO()
+        c.write('comments\n1,2,3,5\n4,5,7,8\n2,1,4,5')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       skiprows=1, max_rows=1)
+        a = np.array([1, 2, 3, 5], int)
+        assert_array_equal(x, a)
+
+        c = TextIO()
+        c.write('comment\n1,2,3,5\n4,5,7,8\n2,1,4,5')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       skiprows=1, max_rows=2)
+        a = np.array([[1, 2, 3, 5], [4, 5, 7, 8]], int)
+        assert_array_equal(x, a)
+
+    def test_max_rows_with_read_continuation(self):
+        c = TextIO()
+        c.write('1,2,3,5\n4,5,7,8\n2,1,4,5')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       max_rows=2)
+        a = np.array([[1, 2, 3, 5], [4, 5, 7, 8]], int)
+        assert_array_equal(x, a)
+        # test continuation
+        x = np.loadtxt(c, dtype=int, delimiter=',')
+        a = np.array([2, 1, 4, 5], int)
+        assert_array_equal(x, a)
+
+    def test_max_rows_larger(self):
+        #test max_rows > num rows
+        c = TextIO()
+        c.write('comment\n1,2,3,5\n4,5,7,8\n2,1,4,5')
+        c.seek(0)
+        x = np.loadtxt(c, dtype=int, delimiter=',',
+                       skiprows=1, max_rows=6)
+        a = np.array([[1, 2, 3, 5], [4, 5, 7, 8], [2, 1, 4, 5]], int)
+        assert_array_equal(x, a)
+
+    @pytest.mark.parametrize(["skip", "data"], [
+            (1, ["ignored\n", "1,2\n", "\n", "3,4\n"]),
+            # "Bad" lines that do not end in newlines:
+            (1, ["ignored", "1,2", "", "3,4"]),
+            (1, lambda: StringIO("ignored\n1,2\n\n3,4")),
+            # Same as above, but do not skip any lines:
+            (0, ["-1,0\n", "1,2\n", "\n", "3,4\n"]),
+            (0, ["-1,0", "1,2", "", "3,4"]),
+            (0, lambda: StringIO("-1,0\n1,2\n\n3,4"))])
+    def test_max_rows_empty_lines(self, skip, data):
+        # gh-26718 re-instantiate StringIO objects each time
+        if callable(data):
+            data = data()
+
+        with pytest.warns(UserWarning,
+                    match=f"Input line 3.*max_rows={3 - skip}"):
+            res = np.loadtxt(data, dtype=int, skiprows=skip, delimiter=",",
+                             max_rows=3 - skip)
+            assert_array_equal(res, [[-1, 0], [1, 2], [3, 4]][skip:])
+
+        if isinstance(data, StringIO):
+            data.seek(0)
+
+        with warnings.catch_warnings():
+            warnings.simplefilter("error", UserWarning)
+            with pytest.raises(UserWarning):
+                np.loadtxt(data, dtype=int, skiprows=skip, delimiter=",",
+                           max_rows=3 - skip)
+
+class Testfromregex:
+    def test_record(self):
+        c = TextIO()
+        c.write('1.312 foo\n1.534 bar\n4.444 qux')
+        c.seek(0)
+
+        dt = [('num', np.float64), ('val', 'S3')]
+        x = np.fromregex(c, r"([0-9.]+)\s+(...)", dt)
+        a = np.array([(1.312, 'foo'), (1.534, 'bar'), (4.444, 'qux')],
+                     dtype=dt)
+        assert_array_equal(x, a)
+
+    def test_record_2(self):
+        c = TextIO()
+        c.write('1312 foo\n1534 bar\n4444 qux')
+        c.seek(0)
+
+        dt = [('num', np.int32), ('val', 'S3')]
+        x = np.fromregex(c, r"(\d+)\s+(...)", dt)
+        a = np.array([(1312, 'foo'), (1534, 'bar'), (4444, 'qux')],
+                     dtype=dt)
+        assert_array_equal(x, a)
+
+    def test_record_3(self):
+        c = TextIO()
+        c.write('1312 foo\n1534 bar\n4444 qux')
+        c.seek(0)
+
+        dt = [('num', np.float64)]
+        x = np.fromregex(c, r"(\d+)\s+...", dt)
+        a = np.array([(1312,), (1534,), (4444,)], dtype=dt)
+        assert_array_equal(x, a)
+
+    @pytest.mark.parametrize("path_type", [str, Path])
+    def test_record_unicode(self, path_type):
+        utf8 = b'\xcf\x96'
+        with temppath() as str_path:
+            path = path_type(str_path)
+            with open(path, 'wb') as f:
+                f.write(b'1.312 foo' + utf8 + b' \n1.534 bar\n4.444 qux')
+
+            dt = [('num', np.float64), ('val', 'U4')]
+            x = np.fromregex(path, r"(?u)([0-9.]+)\s+(\w+)", dt, encoding='UTF-8')
+            a = np.array([(1.312, 'foo' + utf8.decode('UTF-8')), (1.534, 'bar'),
+                           (4.444, 'qux')], dtype=dt)
+            assert_array_equal(x, a)
+
+            regexp = re.compile(r"([0-9.]+)\s+(\w+)", re.UNICODE)
+            x = np.fromregex(path, regexp, dt, encoding='UTF-8')
+            assert_array_equal(x, a)
+
+    def test_compiled_bytes(self):
+        regexp = re.compile(br'(\d)')
+        c = BytesIO(b'123')
+        dt = [('num', np.float64)]
+        a = np.array([1, 2, 3], dtype=dt)
+        x = np.fromregex(c, regexp, dt)
+        assert_array_equal(x, a)
+
+    def test_bad_dtype_not_structured(self):
+        regexp = re.compile(br'(\d)')
+        c = BytesIO(b'123')
+        with pytest.raises(TypeError, match='structured datatype'):
+            np.fromregex(c, regexp, dtype=np.float64)
+
+
+#####--------------------------------------------------------------------------
+
+
+class TestFromTxt(LoadTxtBase):
+    loadfunc = staticmethod(np.genfromtxt)
+
+    def test_record(self):
+        # Test w/ explicit dtype
+        data = TextIO('1 2\n3 4')
+        test = np.genfromtxt(data, dtype=[('x', np.int32), ('y', np.int32)])
+        control = np.array([(1, 2), (3, 4)], dtype=[('x', 'i4'), ('y', 'i4')])
+        assert_equal(test, control)
+        #
+        data = TextIO('M 64.0 75.0\nF 25.0 60.0')
+        descriptor = {'names': ('gender', 'age', 'weight'),
+                      'formats': ('S1', 'i4', 'f4')}
+        control = np.array([('M', 64.0, 75.0), ('F', 25.0, 60.0)],
+                           dtype=descriptor)
+        test = np.genfromtxt(data, dtype=descriptor)
+        assert_equal(test, control)
+
+    def test_array(self):
+        # Test outputting a standard ndarray
+        data = TextIO('1 2\n3 4')
+        control = np.array([[1, 2], [3, 4]], dtype=int)
+        test = np.genfromtxt(data, dtype=int)
+        assert_array_equal(test, control)
+        #
+        data.seek(0)
+        control = np.array([[1, 2], [3, 4]], dtype=float)
+        test = np.loadtxt(data, dtype=float)
+        assert_array_equal(test, control)
+
+    def test_1D(self):
+        # Test squeezing to 1D
+        control = np.array([1, 2, 3, 4], int)
+        #
+        data = TextIO('1\n2\n3\n4\n')
+        test = np.genfromtxt(data, dtype=int)
+        assert_array_equal(test, control)
+        #
+        data = TextIO('1,2,3,4\n')
+        test = np.genfromtxt(data, dtype=int, delimiter=',')
+        assert_array_equal(test, control)
+
+    def test_comments(self):
+        # Test the stripping of comments
+        control = np.array([1, 2, 3, 5], int)
+        # Comment on its own line
+        data = TextIO('# comment\n1,2,3,5\n')
+        test = np.genfromtxt(data, dtype=int, delimiter=',', comments='#')
+        assert_equal(test, control)
+        # Comment at the end of a line
+        data = TextIO('1,2,3,5# comment\n')
+        test = np.genfromtxt(data, dtype=int, delimiter=',', comments='#')
+        assert_equal(test, control)
+
+    def test_skiprows(self):
+        # Test row skipping
+        control = np.array([1, 2, 3, 5], int)
+        kwargs = {"dtype": int, "delimiter": ','}
+        #
+        data = TextIO('comment\n1,2,3,5\n')
+        test = np.genfromtxt(data, skip_header=1, **kwargs)
+        assert_equal(test, control)
+        #
+        data = TextIO('# comment\n1,2,3,5\n')
+        test = np.loadtxt(data, skiprows=1, **kwargs)
+        assert_equal(test, control)
+
+    def test_skip_footer(self):
+        data = [f"# {i}" for i in range(1, 6)]
+        data.append("A, B, C")
+        data.extend([f"{i},{i:3.1f},{i:03d}" for i in range(51)])
+        data[-1] = "99,99"
+        kwargs = {"delimiter": ",", "names": True, "skip_header": 5, "skip_footer": 10}
+        test = np.genfromtxt(TextIO("\n".join(data)), **kwargs)
+        ctrl = np.array([(f"{i:f}", f"{i:f}", f"{i:f}") for i in range(41)],
+                        dtype=[(_, float) for _ in "ABC"])
+        assert_equal(test, ctrl)
+
+    def test_skip_footer_with_invalid(self):
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', ConversionWarning)
+            basestr = '1 1\n2 2\n3 3\n4 4\n5  \n6  \n7  \n'
+            # Footer too small to get rid of all invalid values
+            assert_raises(ValueError, np.genfromtxt,
+                          TextIO(basestr), skip_footer=1)
+    #        except ValueError:
+    #            pass
+            a = np.genfromtxt(
+                TextIO(basestr), skip_footer=1, invalid_raise=False)
+            assert_equal(a, np.array([[1., 1.], [2., 2.], [3., 3.], [4., 4.]]))
+            #
+            a = np.genfromtxt(TextIO(basestr), skip_footer=3)
+            assert_equal(a, np.array([[1., 1.], [2., 2.], [3., 3.], [4., 4.]]))
+            #
+            basestr = '1 1\n2  \n3 3\n4 4\n5  \n6 6\n7 7\n'
+            a = np.genfromtxt(
+                TextIO(basestr), skip_footer=1, invalid_raise=False)
+            assert_equal(a, np.array([[1., 1.], [3., 3.], [4., 4.], [6., 6.]]))
+            a = np.genfromtxt(
+                TextIO(basestr), skip_footer=3, invalid_raise=False)
+            assert_equal(a, np.array([[1., 1.], [3., 3.], [4., 4.]]))
+
+    def test_header(self):
+        # Test retrieving a header
+        data = TextIO('gender age weight\nM 64.0 75.0\nF 25.0 60.0')
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(data, dtype=None, names=True,
+                                 encoding='bytes')
+            assert_(w[0].category is VisibleDeprecationWarning)
+        control = {'gender': np.array([b'M', b'F']),
+                   'age': np.array([64.0, 25.0]),
+                   'weight': np.array([75.0, 60.0])}
+        assert_equal(test['gender'], control['gender'])
+        assert_equal(test['age'], control['age'])
+        assert_equal(test['weight'], control['weight'])
+
+    def test_auto_dtype(self):
+        # Test the automatic definition of the output dtype
+        data = TextIO('A 64 75.0 3+4j True\nBCD 25 60.0 5+6j False')
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(data, dtype=None, encoding='bytes')
+            assert_(w[0].category is VisibleDeprecationWarning)
+        control = [np.array([b'A', b'BCD']),
+                   np.array([64, 25]),
+                   np.array([75.0, 60.0]),
+                   np.array([3 + 4j, 5 + 6j]),
+                   np.array([True, False]), ]
+        assert_equal(test.dtype.names, ['f0', 'f1', 'f2', 'f3', 'f4'])
+        for (i, ctrl) in enumerate(control):
+            assert_equal(test[f'f{i}'], ctrl)
+
+    def test_auto_dtype_uniform(self):
+        # Tests whether the output dtype can be uniformized
+        data = TextIO('1 2 3 4\n5 6 7 8\n')
+        test = np.genfromtxt(data, dtype=None)
+        control = np.array([[1, 2, 3, 4], [5, 6, 7, 8]])
+        assert_equal(test, control)
+
+    def test_fancy_dtype(self):
+        # Check that a nested dtype isn't MIA
+        data = TextIO('1,2,3.0\n4,5,6.0\n')
+        fancydtype = np.dtype([('x', int), ('y', [('t', int), ('s', float)])])
+        test = np.genfromtxt(data, dtype=fancydtype, delimiter=',')
+        control = np.array([(1, (2, 3.0)), (4, (5, 6.0))], dtype=fancydtype)
+        assert_equal(test, control)
+
+    def test_names_overwrite(self):
+        # Test overwriting the names of the dtype
+        descriptor = {'names': ('g', 'a', 'w'),
+                      'formats': ('S1', 'i4', 'f4')}
+        data = TextIO(b'M 64.0 75.0\nF 25.0 60.0')
+        names = ('gender', 'age', 'weight')
+        test = np.genfromtxt(data, dtype=descriptor, names=names)
+        descriptor['names'] = names
+        control = np.array([('M', 64.0, 75.0),
+                            ('F', 25.0, 60.0)], dtype=descriptor)
+        assert_equal(test, control)
+
+    def test_bad_fname(self):
+        with pytest.raises(TypeError, match='fname must be a string,'):
+            np.genfromtxt(123)
+
+    def test_commented_header(self):
+        # Check that names can be retrieved even if the line is commented out.
+        data = TextIO("""
+#gender age weight
+M   21  72.100000
+F   35  58.330000
+M   33  21.99
+        """)
+        # The # is part of the first name and should be deleted automatically.
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(data, names=True, dtype=None,
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        ctrl = np.array([('M', 21, 72.1), ('F', 35, 58.33), ('M', 33, 21.99)],
+                        dtype=[('gender', '|S1'), ('age', int), ('weight', float)])
+        assert_equal(test, ctrl)
+        # Ditto, but we should get rid of the first element
+        data = TextIO(b"""
+# gender age weight
+M   21  72.100000
+F   35  58.330000
+M   33  21.99
+        """)
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(data, names=True, dtype=None,
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        assert_equal(test, ctrl)
+
+    def test_names_and_comments_none(self):
+        # Tests case when names is true but comments is None (gh-10780)
+        data = TextIO('col1 col2\n 1 2\n 3 4')
+        test = np.genfromtxt(data, dtype=(int, int), comments=None, names=True)
+        control = np.array([(1, 2), (3, 4)], dtype=[('col1', int), ('col2', int)])
+        assert_equal(test, control)
+
+    def test_file_is_closed_on_error(self):
+        # gh-13200
+        with tempdir() as tmpdir:
+            fpath = os.path.join(tmpdir, "test.csv")
+            with open(fpath, "wb") as f:
+                f.write('\N{GREEK PI SYMBOL}'.encode())
+
+            # ResourceWarnings are emitted from a destructor, so won't be
+            # detected by regular propagation to errors.
+            with assert_no_warnings():
+                with pytest.raises(UnicodeDecodeError):
+                    np.genfromtxt(fpath, encoding="ascii")
+
+    def test_autonames_and_usecols(self):
+        # Tests names and usecols
+        data = TextIO('A B C D\n aaaa 121 45 9.1')
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(data, usecols=('A', 'C', 'D'),
+                                names=True, dtype=None, encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        control = np.array(('aaaa', 45, 9.1),
+                           dtype=[('A', '|S4'), ('C', int), ('D', float)])
+        assert_equal(test, control)
+
+    def test_converters_with_usecols(self):
+        # Test the combination user-defined converters and usecol
+        data = TextIO('1,2,3,,5\n6,7,8,9,10\n')
+        test = np.genfromtxt(data, dtype=int, delimiter=',',
+                            converters={3: lambda s: int(s or - 999)},
+                            usecols=(1, 3,))
+        control = np.array([[2, -999], [7, 9]], int)
+        assert_equal(test, control)
+
+    def test_converters_with_usecols_and_names(self):
+        # Tests names and usecols
+        data = TextIO('A B C D\n aaaa 121 45 9.1')
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(data, usecols=('A', 'C', 'D'), names=True,
+                                dtype=None, encoding="bytes",
+                                converters={'C': lambda s: 2 * int(s)})
+            assert_(w[0].category is VisibleDeprecationWarning)
+        control = np.array(('aaaa', 90, 9.1),
+                           dtype=[('A', '|S4'), ('C', int), ('D', float)])
+        assert_equal(test, control)
+
+    def test_converters_cornercases(self):
+        # Test the conversion to datetime.
+        converter = {
+            'date': lambda s: strptime(s, '%Y-%m-%d %H:%M:%SZ')}
+        data = TextIO('2009-02-03 12:00:00Z, 72214.0')
+        test = np.genfromtxt(data, delimiter=',', dtype=None,
+                            names=['date', 'stid'], converters=converter)
+        control = np.array((datetime(2009, 2, 3), 72214.),
+                           dtype=[('date', np.object_), ('stid', float)])
+        assert_equal(test, control)
+
+    def test_converters_cornercases2(self):
+        # Test the conversion to datetime64.
+        converter = {
+            'date': lambda s: np.datetime64(strptime(s, '%Y-%m-%d %H:%M:%SZ'))}
+        data = TextIO('2009-02-03 12:00:00Z, 72214.0')
+        test = np.genfromtxt(data, delimiter=',', dtype=None,
+                            names=['date', 'stid'], converters=converter)
+        control = np.array((datetime(2009, 2, 3), 72214.),
+                           dtype=[('date', 'datetime64[us]'), ('stid', float)])
+        assert_equal(test, control)
+
+    def test_unused_converter(self):
+        # Test whether unused converters are forgotten
+        data = TextIO("1 21\n  3 42\n")
+        test = np.genfromtxt(data, usecols=(1,),
+                            converters={0: lambda s: int(s, 16)})
+        assert_equal(test, [21, 42])
+        #
+        data.seek(0)
+        test = np.genfromtxt(data, usecols=(1,),
+                            converters={1: lambda s: int(s, 16)})
+        assert_equal(test, [33, 66])
+
+    def test_invalid_converter(self):
+        strip_rand = lambda x: float((b'r' in x.lower() and x.split()[-1]) or
+                                     ((b'r' not in x.lower() and x.strip()) or 0.0))
+        strip_per = lambda x: float((b'%' in x.lower() and x.split()[0]) or
+                                    ((b'%' not in x.lower() and x.strip()) or 0.0))
+        s = TextIO("D01N01,10/1/2003 ,1 %,R 75,400,600\r\n"
+                   "L24U05,12/5/2003, 2 %,1,300, 150.5\r\n"
+                   "D02N03,10/10/2004,R 1,,7,145.55")
+        kwargs = {
+            "converters": {2: strip_per, 3: strip_rand}, "delimiter": ",",
+            "dtype": None, "encoding": "bytes"}
+        assert_raises(ConverterError, np.genfromtxt, s, **kwargs)
+
+    def test_tricky_converter_bug1666(self):
+        # Test some corner cases
+        s = TextIO('q1,2\nq3,4')
+        cnv = lambda s: float(s[1:])
+        test = np.genfromtxt(s, delimiter=',', converters={0: cnv})
+        control = np.array([[1., 2.], [3., 4.]])
+        assert_equal(test, control)
+
+    def test_dtype_with_converters(self):
+        dstr = "2009; 23; 46"
+        test = np.genfromtxt(TextIO(dstr,),
+                            delimiter=";", dtype=float, converters={0: bytes})
+        control = np.array([('2009', 23., 46)],
+                           dtype=[('f0', '|S4'), ('f1', float), ('f2', float)])
+        assert_equal(test, control)
+        test = np.genfromtxt(TextIO(dstr,),
+                            delimiter=";", dtype=float, converters={0: float})
+        control = np.array([2009., 23., 46],)
+        assert_equal(test, control)
+
+    @pytest.mark.filterwarnings("ignore:.*recfromcsv.*:DeprecationWarning")
+    def test_dtype_with_converters_and_usecols(self):
+        dstr = "1,5,-1,1:1\n2,8,-1,1:n\n3,3,-2,m:n\n"
+        dmap = {'1:1': 0, '1:n': 1, 'm:1': 2, 'm:n': 3}
+        dtyp = [('e1', 'i4'), ('e2', 'i4'), ('e3', 'i2'), ('n', 'i1')]
+        conv = {0: int, 1: int, 2: int, 3: lambda r: dmap[r.decode()]}
+        test = recfromcsv(TextIO(dstr,), dtype=dtyp, delimiter=',',
+                          names=None, converters=conv, encoding="bytes")
+        control = np.rec.array([(1, 5, -1, 0), (2, 8, -1, 1), (3, 3, -2, 3)],
+                               dtype=dtyp)
+        assert_equal(test, control)
+        dtyp = [('e1', 'i4'), ('e2', 'i4'), ('n', 'i1')]
+        test = recfromcsv(TextIO(dstr,), dtype=dtyp, delimiter=',',
+                          usecols=(0, 1, 3), names=None, converters=conv,
+                          encoding="bytes")
+        control = np.rec.array([(1, 5, 0), (2, 8, 1), (3, 3, 3)], dtype=dtyp)
+        assert_equal(test, control)
+
+    def test_dtype_with_object(self):
+        # Test using an explicit dtype with an object
+        data = """ 1; 2001-01-01
+                   2; 2002-01-31 """
+        ndtype = [('idx', int), ('code', object)]
+        func = lambda s: strptime(s.strip(), "%Y-%m-%d")
+        converters = {1: func}
+        test = np.genfromtxt(TextIO(data), delimiter=";", dtype=ndtype,
+                             converters=converters)
+        control = np.array(
+            [(1, datetime(2001, 1, 1)), (2, datetime(2002, 1, 31))],
+            dtype=ndtype)
+        assert_equal(test, control)
+
+        ndtype = [('nest', [('idx', int), ('code', object)])]
+        with assert_raises_regex(NotImplementedError,
+                                 'Nested fields.* not supported.*'):
+            test = np.genfromtxt(TextIO(data), delimiter=";",
+                                 dtype=ndtype, converters=converters)
+
+        # nested but empty fields also aren't supported
+        ndtype = [('idx', int), ('code', object), ('nest', [])]
+        with assert_raises_regex(NotImplementedError,
+                                 'Nested fields.* not supported.*'):
+            test = np.genfromtxt(TextIO(data), delimiter=";",
+                                 dtype=ndtype, converters=converters)
+
+    def test_dtype_with_object_no_converter(self):
+        # Object without a converter uses bytes:
+        parsed = np.genfromtxt(TextIO("1"), dtype=object)
+        assert parsed[()] == b"1"
+        parsed = np.genfromtxt(TextIO("string"), dtype=object)
+        assert parsed[()] == b"string"
+
+    def test_userconverters_with_explicit_dtype(self):
+        # Test user_converters w/ explicit (standard) dtype
+        data = TextIO('skip,skip,2001-01-01,1.0,skip')
+        test = np.genfromtxt(data, delimiter=",", names=None, dtype=float,
+                             usecols=(2, 3), converters={2: bytes})
+        control = np.array([('2001-01-01', 1.)],
+                           dtype=[('', '|S10'), ('', float)])
+        assert_equal(test, control)
+
+    def test_utf8_userconverters_with_explicit_dtype(self):
+        utf8 = b'\xcf\x96'
+        with temppath() as path:
+            with open(path, 'wb') as f:
+                f.write(b'skip,skip,2001-01-01' + utf8 + b',1.0,skip')
+            test = np.genfromtxt(path, delimiter=",", names=None, dtype=float,
+                                 usecols=(2, 3), converters={2: str},
+                                 encoding='UTF-8')
+        control = np.array([('2001-01-01' + utf8.decode('UTF-8'), 1.)],
+                           dtype=[('', '|U11'), ('', float)])
+        assert_equal(test, control)
+
+    def test_spacedelimiter(self):
+        # Test space delimiter
+        data = TextIO("1  2  3  4   5\n6  7  8  9  10")
+        test = np.genfromtxt(data)
+        control = np.array([[1., 2., 3., 4., 5.],
+                            [6., 7., 8., 9., 10.]])
+        assert_equal(test, control)
+
+    def test_integer_delimiter(self):
+        # Test using an integer for delimiter
+        data = "  1  2  3\n  4  5 67\n890123  4"
+        test = np.genfromtxt(TextIO(data), delimiter=3)
+        control = np.array([[1, 2, 3], [4, 5, 67], [890, 123, 4]])
+        assert_equal(test, control)
+
+    def test_missing(self):
+        data = TextIO('1,2,3,,5\n')
+        test = np.genfromtxt(data, dtype=int, delimiter=',',
+                            converters={3: lambda s: int(s or - 999)})
+        control = np.array([1, 2, 3, -999, 5], int)
+        assert_equal(test, control)
+
+    def test_missing_with_tabs(self):
+        # Test w/ a delimiter tab
+        txt = "1\t2\t3\n\t2\t\n1\t\t3"
+        test = np.genfromtxt(TextIO(txt), delimiter="\t",
+                             usemask=True,)
+        ctrl_d = np.array([(1, 2, 3), (np.nan, 2, np.nan), (1, np.nan, 3)],)
+        ctrl_m = np.array([(0, 0, 0), (1, 0, 1), (0, 1, 0)], dtype=bool)
+        assert_equal(test.data, ctrl_d)
+        assert_equal(test.mask, ctrl_m)
+
+    def test_usecols(self):
+        # Test the selection of columns
+        # Select 1 column
+        control = np.array([[1, 2], [3, 4]], float)
+        data = TextIO()
+        np.savetxt(data, control)
+        data.seek(0)
+        test = np.genfromtxt(data, dtype=float, usecols=(1,))
+        assert_equal(test, control[:, 1])
+        #
+        control = np.array([[1, 2, 3], [3, 4, 5]], float)
+        data = TextIO()
+        np.savetxt(data, control)
+        data.seek(0)
+        test = np.genfromtxt(data, dtype=float, usecols=(1, 2))
+        assert_equal(test, control[:, 1:])
+        # Testing with arrays instead of tuples.
+        data.seek(0)
+        test = np.genfromtxt(data, dtype=float, usecols=np.array([1, 2]))
+        assert_equal(test, control[:, 1:])
+
+    def test_usecols_as_css(self):
+        # Test giving usecols with a comma-separated string
+        data = "1 2 3\n4 5 6"
+        test = np.genfromtxt(TextIO(data),
+                             names="a, b, c", usecols="a, c")
+        ctrl = np.array([(1, 3), (4, 6)], dtype=[(_, float) for _ in "ac"])
+        assert_equal(test, ctrl)
+
+    def test_usecols_with_structured_dtype(self):
+        # Test usecols with an explicit structured dtype
+        data = TextIO("JOE 70.1 25.3\nBOB 60.5 27.9")
+        names = ['stid', 'temp']
+        dtypes = ['S4', 'f8']
+        test = np.genfromtxt(
+            data, usecols=(0, 2), dtype=list(zip(names, dtypes)))
+        assert_equal(test['stid'], [b"JOE", b"BOB"])
+        assert_equal(test['temp'], [25.3, 27.9])
+
+    def test_usecols_with_integer(self):
+        # Test usecols with an integer
+        test = np.genfromtxt(TextIO(b"1 2 3\n4 5 6"), usecols=0)
+        assert_equal(test, np.array([1., 4.]))
+
+    def test_usecols_with_named_columns(self):
+        # Test usecols with named columns
+        ctrl = np.array([(1, 3), (4, 6)], dtype=[('a', float), ('c', float)])
+        data = "1 2 3\n4 5 6"
+        kwargs = {"names": "a, b, c"}
+        test = np.genfromtxt(TextIO(data), usecols=(0, -1), **kwargs)
+        assert_equal(test, ctrl)
+        test = np.genfromtxt(TextIO(data),
+                             usecols=('a', 'c'), **kwargs)
+        assert_equal(test, ctrl)
+
+    def test_empty_file(self):
+        # Test that an empty file raises the proper warning.
+        with warnings.catch_warnings():
+            warnings.filterwarnings('ignore', message="genfromtxt: Empty input file:")
+            data = TextIO()
+            test = np.genfromtxt(data)
+            assert_equal(test, np.array([]))
+
+            # when skip_header > 0
+            test = np.genfromtxt(data, skip_header=1)
+            assert_equal(test, np.array([]))
+
+    def test_fancy_dtype_alt(self):
+        # Check that a nested dtype isn't MIA
+        data = TextIO('1,2,3.0\n4,5,6.0\n')
+        fancydtype = np.dtype([('x', int), ('y', [('t', int), ('s', float)])])
+        test = np.genfromtxt(data, dtype=fancydtype, delimiter=',', usemask=True)
+        control = ma.array([(1, (2, 3.0)), (4, (5, 6.0))], dtype=fancydtype)
+        assert_equal(test, control)
+
+    def test_shaped_dtype(self):
+        c = TextIO("aaaa  1.0  8.0  1 2 3 4 5 6")
+        dt = np.dtype([('name', 'S4'), ('x', float), ('y', float),
+                       ('block', int, (2, 3))])
+        x = np.genfromtxt(c, dtype=dt)
+        a = np.array([('aaaa', 1.0, 8.0, [[1, 2, 3], [4, 5, 6]])],
+                     dtype=dt)
+        assert_array_equal(x, a)
+
+    def test_withmissing(self):
+        data = TextIO('A,B\n0,1\n2,N/A')
+        kwargs = {"delimiter": ",", "missing_values": "N/A", "names": True}
+        test = np.genfromtxt(data, dtype=None, usemask=True, **kwargs)
+        control = ma.array([(0, 1), (2, -1)],
+                           mask=[(False, False), (False, True)],
+                           dtype=[('A', int), ('B', int)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        #
+        data.seek(0)
+        test = np.genfromtxt(data, usemask=True, **kwargs)
+        control = ma.array([(0, 1), (2, -1)],
+                           mask=[(False, False), (False, True)],
+                           dtype=[('A', float), ('B', float)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+    def test_user_missing_values(self):
+        data = "A, B, C\n0, 0., 0j\n1, N/A, 1j\n-9, 2.2, N/A\n3, -99, 3j"
+        basekwargs = {"dtype": None, "delimiter": ",", "names": True}
+        mdtype = [('A', int), ('B', float), ('C', complex)]
+        #
+        test = np.genfromtxt(TextIO(data), missing_values="N/A",
+                            **basekwargs)
+        control = ma.array([(0, 0.0, 0j), (1, -999, 1j),
+                            (-9, 2.2, -999j), (3, -99, 3j)],
+                           mask=[(0, 0, 0), (0, 1, 0), (0, 0, 1), (0, 0, 0)],
+                           dtype=mdtype)
+        assert_equal(test, control)
+        #
+        basekwargs['dtype'] = mdtype
+        test = np.genfromtxt(TextIO(data),
+                             missing_values={0: -9, 1: -99, 2: -999j},
+                             usemask=True, **basekwargs)
+        control = ma.array([(0, 0.0, 0j), (1, -999, 1j),
+                            (-9, 2.2, -999j), (3, -99, 3j)],
+                           mask=[(0, 0, 0), (0, 1, 0), (1, 0, 1), (0, 1, 0)],
+                           dtype=mdtype)
+        assert_equal(test, control)
+        #
+        test = np.genfromtxt(TextIO(data),
+                            missing_values={0: -9, 'B': -99, 'C': -999j},
+                            usemask=True,
+                            **basekwargs)
+        control = ma.array([(0, 0.0, 0j), (1, -999, 1j),
+                            (-9, 2.2, -999j), (3, -99, 3j)],
+                           mask=[(0, 0, 0), (0, 1, 0), (1, 0, 1), (0, 1, 0)],
+                           dtype=mdtype)
+        assert_equal(test, control)
+
+    def test_user_filling_values(self):
+        # Test with missing and filling values
+        ctrl = np.array([(0, 3), (4, -999)], dtype=[('a', int), ('b', int)])
+        data = "N/A, 2, 3\n4, ,???"
+        kwargs = {"delimiter": ",",
+                      "dtype": int,
+                      "names": "a,b,c",
+                      "missing_values": {0: "N/A", 'b': " ", 2: "???"},
+                      "filling_values": {0: 0, 'b': 0, 2: -999}}
+        test = np.genfromtxt(TextIO(data), **kwargs)
+        ctrl = np.array([(0, 2, 3), (4, 0, -999)],
+                        dtype=[(_, int) for _ in "abc"])
+        assert_equal(test, ctrl)
+        #
+        test = np.genfromtxt(TextIO(data), usecols=(0, -1), **kwargs)
+        ctrl = np.array([(0, 3), (4, -999)], dtype=[(_, int) for _ in "ac"])
+        assert_equal(test, ctrl)
+
+        data2 = "1,2,*,4\n5,*,7,8\n"
+        test = np.genfromtxt(TextIO(data2), delimiter=',', dtype=int,
+                             missing_values="*", filling_values=0)
+        ctrl = np.array([[1, 2, 0, 4], [5, 0, 7, 8]])
+        assert_equal(test, ctrl)
+        test = np.genfromtxt(TextIO(data2), delimiter=',', dtype=int,
+                             missing_values="*", filling_values=-1)
+        ctrl = np.array([[1, 2, -1, 4], [5, -1, 7, 8]])
+        assert_equal(test, ctrl)
+
+    def test_withmissing_float(self):
+        data = TextIO('A,B\n0,1.5\n2,-999.00')
+        test = np.genfromtxt(data, dtype=None, delimiter=',',
+                            missing_values='-999.0', names=True, usemask=True)
+        control = ma.array([(0, 1.5), (2, -1.)],
+                           mask=[(False, False), (False, True)],
+                           dtype=[('A', int), ('B', float)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+    def test_with_masked_column_uniform(self):
+        # Test masked column
+        data = TextIO('1 2 3\n4 5 6\n')
+        test = np.genfromtxt(data, dtype=None,
+                             missing_values='2,5', usemask=True)
+        control = ma.array([[1, 2, 3], [4, 5, 6]], mask=[[0, 1, 0], [0, 1, 0]])
+        assert_equal(test, control)
+
+    def test_with_masked_column_various(self):
+        # Test masked column
+        data = TextIO('True 2 3\nFalse 5 6\n')
+        test = np.genfromtxt(data, dtype=None,
+                             missing_values='2,5', usemask=True)
+        control = ma.array([(1, 2, 3), (0, 5, 6)],
+                           mask=[(0, 1, 0), (0, 1, 0)],
+                           dtype=[('f0', bool), ('f1', bool), ('f2', int)])
+        assert_equal(test, control)
+
+    def test_invalid_raise(self):
+        # Test invalid raise
+        data = ["1, 1, 1, 1, 1"] * 50
+        for i in range(5):
+            data[10 * i] = "2, 2, 2, 2 2"
+        data.insert(0, "a, b, c, d, e")
+        mdata = TextIO("\n".join(data))
+
+        kwargs = {"delimiter": ",", "dtype": None, "names": True}
+
+        def f():
+            return np.genfromtxt(mdata, invalid_raise=False, **kwargs)
+        mtest = pytest.warns(ConversionWarning, f)
+        assert_equal(len(mtest), 45)
+        assert_equal(mtest, np.ones(45, dtype=[(_, int) for _ in 'abcde']))
+        #
+        mdata.seek(0)
+        assert_raises(ValueError, np.genfromtxt, mdata,
+                      delimiter=",", names=True)
+
+    def test_invalid_raise_with_usecols(self):
+        # Test invalid_raise with usecols
+        data = ["1, 1, 1, 1, 1"] * 50
+        for i in range(5):
+            data[10 * i] = "2, 2, 2, 2 2"
+        data.insert(0, "a, b, c, d, e")
+        mdata = TextIO("\n".join(data))
+
+        kwargs = {"delimiter": ",", "dtype": None, "names": True,
+                      "invalid_raise": False}
+
+        def f():
+            return np.genfromtxt(mdata, usecols=(0, 4), **kwargs)
+        mtest = pytest.warns(ConversionWarning, f)
+        assert_equal(len(mtest), 45)
+        assert_equal(mtest, np.ones(45, dtype=[(_, int) for _ in 'ae']))
+        #
+        mdata.seek(0)
+        mtest = np.genfromtxt(mdata, usecols=(0, 1), **kwargs)
+        assert_equal(len(mtest), 50)
+        control = np.ones(50, dtype=[(_, int) for _ in 'ab'])
+        control[[10 * _ for _ in range(5)]] = (2, 2)
+        assert_equal(mtest, control)
+
+    def test_inconsistent_dtype(self):
+        # Test inconsistent dtype
+        data = ["1, 1, 1, 1, -1.1"] * 50
+        mdata = TextIO("\n".join(data))
+
+        converters = {4: lambda x: f"({x.decode()})"}
+        kwargs = {"delimiter": ",", "converters": converters,
+                      "dtype": [(_, int) for _ in 'abcde'], "encoding": "bytes"}
+        assert_raises(ValueError, np.genfromtxt, mdata, **kwargs)
+
+    def test_default_field_format(self):
+        # Test default format
+        data = "0, 1, 2.3\n4, 5, 6.7"
+        mtest = np.genfromtxt(TextIO(data),
+                             delimiter=",", dtype=None, defaultfmt="f%02i")
+        ctrl = np.array([(0, 1, 2.3), (4, 5, 6.7)],
+                        dtype=[("f00", int), ("f01", int), ("f02", float)])
+        assert_equal(mtest, ctrl)
+
+    def test_single_dtype_wo_names(self):
+        # Test single dtype w/o names
+        data = "0, 1, 2.3\n4, 5, 6.7"
+        mtest = np.genfromtxt(TextIO(data),
+                             delimiter=",", dtype=float, defaultfmt="f%02i")
+        ctrl = np.array([[0., 1., 2.3], [4., 5., 6.7]], dtype=float)
+        assert_equal(mtest, ctrl)
+
+    def test_single_dtype_w_explicit_names(self):
+        # Test single dtype w explicit names
+        data = "0, 1, 2.3\n4, 5, 6.7"
+        mtest = np.genfromtxt(TextIO(data),
+                             delimiter=",", dtype=float, names="a, b, c")
+        ctrl = np.array([(0., 1., 2.3), (4., 5., 6.7)],
+                        dtype=[(_, float) for _ in "abc"])
+        assert_equal(mtest, ctrl)
+
+    def test_single_dtype_w_implicit_names(self):
+        # Test single dtype w implicit names
+        data = "a, b, c\n0, 1, 2.3\n4, 5, 6.7"
+        mtest = np.genfromtxt(TextIO(data),
+                             delimiter=",", dtype=float, names=True)
+        ctrl = np.array([(0., 1., 2.3), (4., 5., 6.7)],
+                        dtype=[(_, float) for _ in "abc"])
+        assert_equal(mtest, ctrl)
+
+    def test_easy_structured_dtype(self):
+        # Test easy structured dtype
+        data = "0, 1, 2.3\n4, 5, 6.7"
+        mtest = np.genfromtxt(TextIO(data), delimiter=",",
+                             dtype=(int, float, float), defaultfmt="f_%02i")
+        ctrl = np.array([(0, 1., 2.3), (4, 5., 6.7)],
+                        dtype=[("f_00", int), ("f_01", float), ("f_02", float)])
+        assert_equal(mtest, ctrl)
+
+    def test_autostrip(self):
+        # Test autostrip
+        data = "01/01/2003  , 1.3,   abcde"
+        kwargs = {"delimiter": ",", "dtype": None, "encoding": "bytes"}
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            mtest = np.genfromtxt(TextIO(data), **kwargs)
+            assert_(w[0].category is VisibleDeprecationWarning)
+        ctrl = np.array([('01/01/2003  ', 1.3, '   abcde')],
+                        dtype=[('f0', '|S12'), ('f1', float), ('f2', '|S8')])
+        assert_equal(mtest, ctrl)
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            mtest = np.genfromtxt(TextIO(data), autostrip=True, **kwargs)
+            assert_(w[0].category is VisibleDeprecationWarning)
+        ctrl = np.array([('01/01/2003', 1.3, 'abcde')],
+                        dtype=[('f0', '|S10'), ('f1', float), ('f2', '|S5')])
+        assert_equal(mtest, ctrl)
+
+    def test_replace_space(self):
+        # Test the 'replace_space' option
+        txt = "A.A, B (B), C:C\n1, 2, 3.14"
+        # Test default: replace ' ' by '_' and delete non-alphanum chars
+        test = np.genfromtxt(TextIO(txt),
+                             delimiter=",", names=True, dtype=None)
+        ctrl_dtype = [("AA", int), ("B_B", int), ("CC", float)]
+        ctrl = np.array((1, 2, 3.14), dtype=ctrl_dtype)
+        assert_equal(test, ctrl)
+        # Test: no replace, no delete
+        test = np.genfromtxt(TextIO(txt),
+                             delimiter=",", names=True, dtype=None,
+                             replace_space='', deletechars='')
+        ctrl_dtype = [("A.A", int), ("B (B)", int), ("C:C", float)]
+        ctrl = np.array((1, 2, 3.14), dtype=ctrl_dtype)
+        assert_equal(test, ctrl)
+        # Test: no delete (spaces are replaced by _)
+        test = np.genfromtxt(TextIO(txt),
+                             delimiter=",", names=True, dtype=None,
+                             deletechars='')
+        ctrl_dtype = [("A.A", int), ("B_(B)", int), ("C:C", float)]
+        ctrl = np.array((1, 2, 3.14), dtype=ctrl_dtype)
+        assert_equal(test, ctrl)
+
+    def test_replace_space_known_dtype(self):
+        # Test the 'replace_space' (and related) options when dtype != None
+        txt = "A.A, B (B), C:C\n1, 2, 3"
+        # Test default: replace ' ' by '_' and delete non-alphanum chars
+        test = np.genfromtxt(TextIO(txt),
+                             delimiter=",", names=True, dtype=int)
+        ctrl_dtype = [("AA", int), ("B_B", int), ("CC", int)]
+        ctrl = np.array((1, 2, 3), dtype=ctrl_dtype)
+        assert_equal(test, ctrl)
+        # Test: no replace, no delete
+        test = np.genfromtxt(TextIO(txt),
+                             delimiter=",", names=True, dtype=int,
+                             replace_space='', deletechars='')
+        ctrl_dtype = [("A.A", int), ("B (B)", int), ("C:C", int)]
+        ctrl = np.array((1, 2, 3), dtype=ctrl_dtype)
+        assert_equal(test, ctrl)
+        # Test: no delete (spaces are replaced by _)
+        test = np.genfromtxt(TextIO(txt),
+                             delimiter=",", names=True, dtype=int,
+                             deletechars='')
+        ctrl_dtype = [("A.A", int), ("B_(B)", int), ("C:C", int)]
+        ctrl = np.array((1, 2, 3), dtype=ctrl_dtype)
+        assert_equal(test, ctrl)
+
+    def test_incomplete_names(self):
+        # Test w/ incomplete names
+        data = "A,,C\n0,1,2\n3,4,5"
+        kwargs = {"delimiter": ",", "names": True}
+        # w/ dtype=None
+        ctrl = np.array([(0, 1, 2), (3, 4, 5)],
+                        dtype=[(_, int) for _ in ('A', 'f0', 'C')])
+        test = np.genfromtxt(TextIO(data), dtype=None, **kwargs)
+        assert_equal(test, ctrl)
+        # w/ default dtype
+        ctrl = np.array([(0, 1, 2), (3, 4, 5)],
+                        dtype=[(_, float) for _ in ('A', 'f0', 'C')])
+        test = np.genfromtxt(TextIO(data), **kwargs)
+
+    def test_names_auto_completion(self):
+        # Make sure that names are properly completed
+        data = "1 2 3\n 4 5 6"
+        test = np.genfromtxt(TextIO(data),
+                             dtype=(int, float, int), names="a")
+        ctrl = np.array([(1, 2, 3), (4, 5, 6)],
+                        dtype=[('a', int), ('f0', float), ('f1', int)])
+        assert_equal(test, ctrl)
+
+    def test_names_with_usecols_bug1636(self):
+        # Make sure we pick up the right names w/ usecols
+        data = "A,B,C,D,E\n0,1,2,3,4\n0,1,2,3,4\n0,1,2,3,4"
+        ctrl_names = ("A", "C", "E")
+        test = np.genfromtxt(TextIO(data),
+                             dtype=(int, int, int), delimiter=",",
+                             usecols=(0, 2, 4), names=True)
+        assert_equal(test.dtype.names, ctrl_names)
+        #
+        test = np.genfromtxt(TextIO(data),
+                             dtype=(int, int, int), delimiter=",",
+                             usecols=("A", "C", "E"), names=True)
+        assert_equal(test.dtype.names, ctrl_names)
+        #
+        test = np.genfromtxt(TextIO(data),
+                             dtype=int, delimiter=",",
+                             usecols=("A", "C", "E"), names=True)
+        assert_equal(test.dtype.names, ctrl_names)
+
+    def test_fixed_width_names(self):
+        # Test fix-width w/ names
+        data = "    A    B   C\n    0    1 2.3\n   45   67   9."
+        kwargs = {"delimiter": (5, 5, 4), "names": True, "dtype": None}
+        ctrl = np.array([(0, 1, 2.3), (45, 67, 9.)],
+                        dtype=[('A', int), ('B', int), ('C', float)])
+        test = np.genfromtxt(TextIO(data), **kwargs)
+        assert_equal(test, ctrl)
+        #
+        kwargs = {"delimiter": 5, "names": True, "dtype": None}
+        ctrl = np.array([(0, 1, 2.3), (45, 67, 9.)],
+                        dtype=[('A', int), ('B', int), ('C', float)])
+        test = np.genfromtxt(TextIO(data), **kwargs)
+        assert_equal(test, ctrl)
+
+    def test_filling_values(self):
+        # Test missing values
+        data = b"1, 2, 3\n1, , 5\n0, 6, \n"
+        kwargs = {"delimiter": ",", "dtype": None, "filling_values": -999}
+        ctrl = np.array([[1, 2, 3], [1, -999, 5], [0, 6, -999]], dtype=int)
+        test = np.genfromtxt(TextIO(data), **kwargs)
+        assert_equal(test, ctrl)
+
+    def test_comments_is_none(self):
+        # Github issue 329 (None was previously being converted to 'None').
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(TextIO("test1,testNonetherestofthedata"),
+                                 dtype=None, comments=None, delimiter=',',
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        assert_equal(test[1], b'testNonetherestofthedata')
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(TextIO("test1, testNonetherestofthedata"),
+                                 dtype=None, comments=None, delimiter=',',
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        assert_equal(test[1], b' testNonetherestofthedata')
+
+    def test_latin1(self):
+        latin1 = b'\xf6\xfc\xf6'
+        norm = b"norm1,norm2,norm3\n"
+        enc = b"test1,testNonethe" + latin1 + b",test3\n"
+        s = norm + enc + norm
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(TextIO(s),
+                                 dtype=None, comments=None, delimiter=',',
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        assert_equal(test[1, 0], b"test1")
+        assert_equal(test[1, 1], b"testNonethe" + latin1)
+        assert_equal(test[1, 2], b"test3")
+        test = np.genfromtxt(TextIO(s),
+                             dtype=None, comments=None, delimiter=',',
+                             encoding='latin1')
+        assert_equal(test[1, 0], "test1")
+        assert_equal(test[1, 1], "testNonethe" + latin1.decode('latin1'))
+        assert_equal(test[1, 2], "test3")
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(TextIO(b"0,testNonethe" + latin1),
+                                 dtype=None, comments=None, delimiter=',',
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        assert_equal(test['f0'], 0)
+        assert_equal(test['f1'], b"testNonethe" + latin1)
+
+    def test_binary_decode_autodtype(self):
+        utf16 = b'\xff\xfeh\x04 \x00i\x04 \x00j\x04'
+        v = self.loadfunc(BytesIO(utf16), dtype=None, encoding='UTF-16')
+        assert_array_equal(v, np.array(utf16.decode('UTF-16').split()))
+
+    def test_utf8_byte_encoding(self):
+        utf8 = b"\xcf\x96"
+        norm = b"norm1,norm2,norm3\n"
+        enc = b"test1,testNonethe" + utf8 + b",test3\n"
+        s = norm + enc + norm
+        with warnings.catch_warnings(record=True) as w:
+            warnings.filterwarnings('always', '', VisibleDeprecationWarning)
+            test = np.genfromtxt(TextIO(s),
+                                 dtype=None, comments=None, delimiter=',',
+                                 encoding="bytes")
+            assert_(w[0].category is VisibleDeprecationWarning)
+        ctl = np.array([
+                 [b'norm1', b'norm2', b'norm3'],
+                 [b'test1', b'testNonethe' + utf8, b'test3'],
+                 [b'norm1', b'norm2', b'norm3']])
+        assert_array_equal(test, ctl)
+
+    def test_utf8_file(self):
+        utf8 = b"\xcf\x96"
+        with temppath() as path:
+            with open(path, "wb") as f:
+                f.write((b"test1,testNonethe" + utf8 + b",test3\n") * 2)
+            test = np.genfromtxt(path, dtype=None, comments=None,
+                                 delimiter=',', encoding="UTF-8")
+            ctl = np.array([
+                     ["test1", "testNonethe" + utf8.decode("UTF-8"), "test3"],
+                     ["test1", "testNonethe" + utf8.decode("UTF-8"), "test3"]],
+                     dtype=np.str_)
+            assert_array_equal(test, ctl)
+
+            # test a mixed dtype
+            with open(path, "wb") as f:
+                f.write(b"0,testNonethe" + utf8)
+            test = np.genfromtxt(path, dtype=None, comments=None,
+                                 delimiter=',', encoding="UTF-8")
+            assert_equal(test['f0'], 0)
+            assert_equal(test['f1'], "testNonethe" + utf8.decode("UTF-8"))
+
+    def test_utf8_file_nodtype_unicode(self):
+        # bytes encoding with non-latin1 -> unicode upcast
+        utf8 = '\u03d6'
+        latin1 = '\xf6\xfc\xf6'
+
+        # skip test if cannot encode utf8 test string with preferred
+        # encoding. The preferred encoding is assumed to be the default
+        # encoding of open. Will need to change this for PyTest, maybe
+        # using pytest.mark.xfail(raises=***).
+        try:
+            encoding = locale.getpreferredencoding()
+            utf8.encode(encoding)
+        except (UnicodeError, ImportError):
+            pytest.skip('Skipping test_utf8_file_nodtype_unicode, '
+                        'unable to encode utf8 in preferred encoding')
+
+        with temppath() as path:
+            with open(path, "wt") as f:
+                f.write("norm1,norm2,norm3\n")
+                f.write("norm1," + latin1 + ",norm3\n")
+                f.write("test1,testNonethe" + utf8 + ",test3\n")
+            with warnings.catch_warnings(record=True) as w:
+                warnings.filterwarnings('always', '',
+                                        VisibleDeprecationWarning)
+                test = np.genfromtxt(path, dtype=None, comments=None,
+                                     delimiter=',', encoding="bytes")
+                # Check for warning when encoding not specified.
+                assert_(w[0].category is VisibleDeprecationWarning)
+            ctl = np.array([
+                     ["norm1", "norm2", "norm3"],
+                     ["norm1", latin1, "norm3"],
+                     ["test1", "testNonethe" + utf8, "test3"]],
+                     dtype=np.str_)
+            assert_array_equal(test, ctl)
+
+    @pytest.mark.filterwarnings("ignore:.*recfromtxt.*:DeprecationWarning")
+    def test_recfromtxt(self):
+        #
+        data = TextIO('A,B\n0,1\n2,3')
+        kwargs = {"delimiter": ",", "missing_values": "N/A", "names": True}
+        test = recfromtxt(data, **kwargs)
+        control = np.array([(0, 1), (2, 3)],
+                           dtype=[('A', int), ('B', int)])
+        assert_(isinstance(test, np.recarray))
+        assert_equal(test, control)
+        #
+        data = TextIO('A,B\n0,1\n2,N/A')
+        test = recfromtxt(data, dtype=None, usemask=True, **kwargs)
+        control = ma.array([(0, 1), (2, -1)],
+                           mask=[(False, False), (False, True)],
+                           dtype=[('A', int), ('B', int)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        assert_equal(test.A, [0, 2])
+
+    @pytest.mark.filterwarnings("ignore:.*recfromcsv.*:DeprecationWarning")
+    def test_recfromcsv(self):
+        #
+        data = TextIO('A,B\n0,1\n2,3')
+        kwargs = {"missing_values": "N/A", "names": True, "case_sensitive": True,
+                      "encoding": "bytes"}
+        test = recfromcsv(data, dtype=None, **kwargs)
+        control = np.array([(0, 1), (2, 3)],
+                           dtype=[('A', int), ('B', int)])
+        assert_(isinstance(test, np.recarray))
+        assert_equal(test, control)
+        #
+        data = TextIO('A,B\n0,1\n2,N/A')
+        test = recfromcsv(data, dtype=None, usemask=True, **kwargs)
+        control = ma.array([(0, 1), (2, -1)],
+                           mask=[(False, False), (False, True)],
+                           dtype=[('A', int), ('B', int)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        assert_equal(test.A, [0, 2])
+        #
+        data = TextIO('A,B\n0,1\n2,3')
+        test = recfromcsv(data, missing_values='N/A',)
+        control = np.array([(0, 1), (2, 3)],
+                           dtype=[('a', int), ('b', int)])
+        assert_(isinstance(test, np.recarray))
+        assert_equal(test, control)
+        #
+        data = TextIO('A,B\n0,1\n2,3')
+        dtype = [('a', int), ('b', float)]
+        test = recfromcsv(data, missing_values='N/A', dtype=dtype)
+        control = np.array([(0, 1), (2, 3)],
+                           dtype=dtype)
+        assert_(isinstance(test, np.recarray))
+        assert_equal(test, control)
+
+        # gh-10394
+        data = TextIO('color\n"red"\n"blue"')
+        test = recfromcsv(data, converters={0: lambda x: x.strip('\"')})
+        control = np.array([('red',), ('blue',)], dtype=[('color', (str, 4))])
+        assert_equal(test.dtype, control.dtype)
+        assert_equal(test, control)
+
+    def test_max_rows(self):
+        # Test the `max_rows` keyword argument.
+        data = '1 2\n3 4\n5 6\n7 8\n9 10\n'
+        txt = TextIO(data)
+        a1 = np.genfromtxt(txt, max_rows=3)
+        a2 = np.genfromtxt(txt)
+        assert_equal(a1, [[1, 2], [3, 4], [5, 6]])
+        assert_equal(a2, [[7, 8], [9, 10]])
+
+        # max_rows must be at least 1.
+        assert_raises(ValueError, np.genfromtxt, TextIO(data), max_rows=0)
+
+        # An input with several invalid rows.
+        data = '1 1\n2 2\n0 \n3 3\n4 4\n5  \n6  \n7  \n'
+
+        test = np.genfromtxt(TextIO(data), max_rows=2)
+        control = np.array([[1., 1.], [2., 2.]])
+        assert_equal(test, control)
+
+        # Test keywords conflict
+        assert_raises(ValueError, np.genfromtxt, TextIO(data), skip_footer=1,
+                      max_rows=4)
+
+        # Test with invalid value
+        assert_raises(ValueError, np.genfromtxt, TextIO(data), max_rows=4)
+
+        # Test with invalid not raise
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', ConversionWarning)
+
+            test = np.genfromtxt(TextIO(data), max_rows=4, invalid_raise=False)
+            control = np.array([[1., 1.], [2., 2.], [3., 3.], [4., 4.]])
+            assert_equal(test, control)
+
+            test = np.genfromtxt(TextIO(data), max_rows=5, invalid_raise=False)
+            control = np.array([[1., 1.], [2., 2.], [3., 3.], [4., 4.]])
+            assert_equal(test, control)
+
+        # Structured array with field names.
+        data = 'a b\n#c d\n1 1\n2 2\n#0 \n3 3\n4 4\n5  5\n'
+
+        # Test with header, names and comments
+        txt = TextIO(data)
+        test = np.genfromtxt(txt, skip_header=1, max_rows=3, names=True)
+        control = np.array([(1.0, 1.0), (2.0, 2.0), (3.0, 3.0)],
+                      dtype=[('c', '<f8'), ('d', '<f8')])
+        assert_equal(test, control)
+        # To continue reading the same "file", don't use skip_header or
+        # names, and use the previously determined dtype.
+        test = np.genfromtxt(txt, max_rows=None, dtype=test.dtype)
+        control = np.array([(4.0, 4.0), (5.0, 5.0)],
+                      dtype=[('c', '<f8'), ('d', '<f8')])
+        assert_equal(test, control)
+
+    def test_gft_using_filename(self):
+        # Test that we can load data from a filename as well as a file
+        # object
+        tgt = np.arange(6).reshape((2, 3))
+        linesep = ('\n', '\r\n', '\r')
+
+        for sep in linesep:
+            data = '0 1 2' + sep + '3 4 5'
+            with temppath() as name:
+                with open(name, 'w') as f:
+                    f.write(data)
+                res = np.genfromtxt(name)
+            assert_array_equal(res, tgt)
+
+    def test_gft_from_gzip(self):
+        # Test that we can load data from a gzipped file
+        wanted = np.arange(6).reshape((2, 3))
+        linesep = ('\n', '\r\n', '\r')
+
+        for sep in linesep:
+            data = '0 1 2' + sep + '3 4 5'
+            s = BytesIO()
+            with gzip.GzipFile(fileobj=s, mode='w') as g:
+                g.write(asbytes(data))
+
+            with temppath(suffix='.gz2') as name:
+                with open(name, 'w') as f:
+                    f.write(data)
+                assert_array_equal(np.genfromtxt(name), wanted)
+
+    def test_gft_using_generator(self):
+        # gft doesn't work with unicode.
+        def count():
+            for i in range(10):
+                yield asbytes("%d" % i)
+
+        res = np.genfromtxt(count())
+        assert_array_equal(res, np.arange(10))
+
+    def test_auto_dtype_largeint(self):
+        # Regression test for numpy/numpy#5635 whereby large integers could
+        # cause OverflowErrors.
+
+        # Test the automatic definition of the output dtype
+        #
+        # 2**66 = 73786976294838206464 => should convert to float
+        # 2**34 = 17179869184 => should convert to int64
+        # 2**10 = 1024 => should convert to int (int32 on 32-bit systems,
+        #                 int64 on 64-bit systems)
+
+        data = TextIO('73786976294838206464 17179869184 1024')
+
+        test = np.genfromtxt(data, dtype=None)
+
+        assert_equal(test.dtype.names, ['f0', 'f1', 'f2'])
+
+        assert_(test.dtype['f0'] == float)
+        assert_(test.dtype['f1'] == np.int64)
+        assert_(test.dtype['f2'] == np.int_)
+
+        assert_allclose(test['f0'], 73786976294838206464.)
+        assert_equal(test['f1'], 17179869184)
+        assert_equal(test['f2'], 1024)
+
+    def test_unpack_float_data(self):
+        txt = TextIO("1,2,3\n4,5,6\n7,8,9\n0.0,1.0,2.0")
+        a, b, c = np.loadtxt(txt, delimiter=",", unpack=True)
+        assert_array_equal(a, np.array([1.0, 4.0, 7.0, 0.0]))
+        assert_array_equal(b, np.array([2.0, 5.0, 8.0, 1.0]))
+        assert_array_equal(c, np.array([3.0, 6.0, 9.0, 2.0]))
+
+    def test_unpack_structured(self):
+        # Regression test for gh-4341
+        # Unpacking should work on structured arrays
+        txt = TextIO("M 21 72\nF 35 58")
+        dt = {'names': ('a', 'b', 'c'), 'formats': ('S1', 'i4', 'f4')}
+        a, b, c = np.genfromtxt(txt, dtype=dt, unpack=True)
+        assert_equal(a.dtype, np.dtype('S1'))
+        assert_equal(b.dtype, np.dtype('i4'))
+        assert_equal(c.dtype, np.dtype('f4'))
+        assert_array_equal(a, np.array([b'M', b'F']))
+        assert_array_equal(b, np.array([21, 35]))
+        assert_array_equal(c, np.array([72.,  58.]))
+
+    def test_unpack_auto_dtype(self):
+        # Regression test for gh-4341
+        # Unpacking should work when dtype=None
+        txt = TextIO("M 21 72.\nF 35 58.")
+        expected = (np.array(["M", "F"]), np.array([21, 35]), np.array([72., 58.]))
+        test = np.genfromtxt(txt, dtype=None, unpack=True, encoding="utf-8")
+        for arr, result in zip(expected, test):
+            assert_array_equal(arr, result)
+            assert_equal(arr.dtype, result.dtype)
+
+    def test_unpack_single_name(self):
+        # Regression test for gh-4341
+        # Unpacking should work when structured dtype has only one field
+        txt = TextIO("21\n35")
+        dt = {'names': ('a',), 'formats': ('i4',)}
+        expected = np.array([21, 35], dtype=np.int32)
+        test = np.genfromtxt(txt, dtype=dt, unpack=True)
+        assert_array_equal(expected, test)
+        assert_equal(expected.dtype, test.dtype)
+
+    def test_squeeze_scalar(self):
+        # Regression test for gh-4341
+        # Unpacking a scalar should give zero-dim output,
+        # even if dtype is structured
+        txt = TextIO("1")
+        dt = {'names': ('a',), 'formats': ('i4',)}
+        expected = np.array((1,), dtype=np.int32)
+        test = np.genfromtxt(txt, dtype=dt, unpack=True)
+        assert_array_equal(expected, test)
+        assert_equal((), test.shape)
+        assert_equal(expected.dtype, test.dtype)
+
+    @pytest.mark.parametrize("ndim", [0, 1, 2])
+    def test_ndmin_keyword(self, ndim: int):
+        # let's have the same behaviour of ndmin as loadtxt
+        # as they should be the same for non-missing values
+        txt = "42"
+
+        a = np.loadtxt(StringIO(txt), ndmin=ndim)
+        b = np.genfromtxt(StringIO(txt), ndmin=ndim)
+
+        assert_array_equal(a, b)
+
+
+class TestPathUsage:
+    # Test that pathlib.Path can be used
+    def test_loadtxt(self):
+        with temppath(suffix='.txt') as path:
+            path = Path(path)
+            a = np.array([[1.1, 2], [3, 4]])
+            np.savetxt(path, a)
+            x = np.loadtxt(path)
+            assert_array_equal(x, a)
+
+    def test_save_load(self):
+        # Test that pathlib.Path instances can be used with save.
+        with temppath(suffix='.npy') as path:
+            path = Path(path)
+            a = np.array([[1, 2], [3, 4]], int)
+            np.save(path, a)
+            data = np.load(path)
+            assert_array_equal(data, a)
+
+    def test_save_load_memmap(self):
+        # Test that pathlib.Path instances can be loaded mem-mapped.
+        with temppath(suffix='.npy') as path:
+            path = Path(path)
+            a = np.array([[1, 2], [3, 4]], int)
+            np.save(path, a)
+            data = np.load(path, mmap_mode='r')
+            assert_array_equal(data, a)
+            # close the mem-mapped file
+            del data
+            if IS_PYPY:
+                break_cycles()
+                break_cycles()
+
+    @pytest.mark.xfail(IS_WASM, reason="memmap doesn't work correctly")
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    def test_save_load_memmap_readwrite(self, filename_type):
+        with temppath(suffix='.npy') as path:
+            path = filename_type(path)
+            a = np.array([[1, 2], [3, 4]], int)
+            np.save(path, a)
+            b = np.load(path, mmap_mode='r+')
+            a[0][0] = 5
+            b[0][0] = 5
+            del b  # closes the file
+            if IS_PYPY:
+                break_cycles()
+                break_cycles()
+            data = np.load(path)
+            assert_array_equal(data, a)
+
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    def test_savez_load(self, filename_type):
+        with temppath(suffix='.npz') as path:
+            path = filename_type(path)
+            np.savez(path, lab='place holder')
+            with np.load(path) as data:
+                assert_array_equal(data['lab'], 'place holder')
+
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    def test_savez_compressed_load(self, filename_type):
+        with temppath(suffix='.npz') as path:
+            path = filename_type(path)
+            np.savez_compressed(path, lab='place holder')
+            data = np.load(path)
+            assert_array_equal(data['lab'], 'place holder')
+            data.close()
+
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    def test_genfromtxt(self, filename_type):
+        with temppath(suffix='.txt') as path:
+            path = filename_type(path)
+            a = np.array([(1, 2), (3, 4)])
+            np.savetxt(path, a)
+            data = np.genfromtxt(path)
+            assert_array_equal(a, data)
+
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    @pytest.mark.filterwarnings("ignore:.*recfromtxt.*:DeprecationWarning")
+    def test_recfromtxt(self, filename_type):
+        with temppath(suffix='.txt') as path:
+            path = filename_type(path)
+            with open(path, 'w') as f:
+                f.write('A,B\n0,1\n2,3')
+
+            kwargs = {"delimiter": ",", "missing_values": "N/A", "names": True}
+            test = recfromtxt(path, **kwargs)
+            control = np.array([(0, 1), (2, 3)],
+                               dtype=[('A', int), ('B', int)])
+            assert_(isinstance(test, np.recarray))
+            assert_equal(test, control)
+
+    @pytest.mark.parametrize("filename_type", [Path, str])
+    @pytest.mark.filterwarnings("ignore:.*recfromcsv.*:DeprecationWarning")
+    def test_recfromcsv(self, filename_type):
+        with temppath(suffix='.txt') as path:
+            path = filename_type(path)
+            with open(path, 'w') as f:
+                f.write('A,B\n0,1\n2,3')
+
+            kwargs = {
+                "missing_values": "N/A", "names": True, "case_sensitive": True
+            }
+            test = recfromcsv(path, dtype=None, **kwargs)
+            control = np.array([(0, 1), (2, 3)],
+                               dtype=[('A', int), ('B', int)])
+            assert_(isinstance(test, np.recarray))
+            assert_equal(test, control)
+
+
+def test_gzip_load():
+    a = np.random.random((5, 5))
+
+    s = BytesIO()
+    f = gzip.GzipFile(fileobj=s, mode="w")
+
+    np.save(f, a)
+    f.close()
+    s.seek(0)
+
+    f = gzip.GzipFile(fileobj=s, mode="r")
+    assert_array_equal(np.load(f), a)
+
+
+# These next two classes encode the minimal API needed to save()/load() arrays.
+# The `test_ducktyping` ensures they work correctly
+class JustWriter:
+    def __init__(self, base):
+        self.base = base
+
+    def write(self, s):
+        return self.base.write(s)
+
+    def flush(self):
+        return self.base.flush()
+
+class JustReader:
+    def __init__(self, base):
+        self.base = base
+
+    def read(self, n):
+        return self.base.read(n)
+
+    def seek(self, off, whence=0):
+        return self.base.seek(off, whence)
+
+
+def test_ducktyping():
+    a = np.random.random((5, 5))
+
+    s = BytesIO()
+    f = JustWriter(s)
+
+    np.save(f, a)
+    f.flush()
+    s.seek(0)
+
+    f = JustReader(s)
+    assert_array_equal(np.load(f), a)
+
+
+def test_gzip_loadtxt():
+    # Thanks to another windows brokenness, we can't use
+    # NamedTemporaryFile: a file created from this function cannot be
+    # reopened by another open call. So we first put the gzipped string
+    # of the test reference array, write it to a securely opened file,
+    # which is then read from by the loadtxt function
+    s = BytesIO()
+    g = gzip.GzipFile(fileobj=s, mode='w')
+    g.write(b'1 2 3\n')
+    g.close()
+
+    s.seek(0)
+    with temppath(suffix='.gz') as name:
+        with open(name, 'wb') as f:
+            f.write(s.read())
+        res = np.loadtxt(name)
+    s.close()
+
+    assert_array_equal(res, [1, 2, 3])
+
+
+def test_gzip_loadtxt_from_string():
+    s = BytesIO()
+    f = gzip.GzipFile(fileobj=s, mode="w")
+    f.write(b'1 2 3\n')
+    f.close()
+    s.seek(0)
+
+    f = gzip.GzipFile(fileobj=s, mode="r")
+    assert_array_equal(np.loadtxt(f), [1, 2, 3])
+
+
+def test_npzfile_dict():
+    s = BytesIO()
+    x = np.zeros((3, 3))
+    y = np.zeros((3, 3))
+
+    np.savez(s, x=x, y=y)
+    s.seek(0)
+
+    z = np.load(s)
+
+    assert_('x' in z)
+    assert_('y' in z)
+    assert_('x' in z.keys())
+    assert_('y' in z.keys())
+
+    for f, a in z.items():
+        assert_(f in ['x', 'y'])
+        assert_equal(a.shape, (3, 3))
+
+    for a in z.values():
+        assert_equal(a.shape, (3, 3))
+
+    assert_(len(z.items()) == 2)
+
+    for f in z:
+        assert_(f in ['x', 'y'])
+
+    assert_('x' in z.keys())
+    assert (z.get('x') == z['x']).all()
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+@pytest.mark.thread_unsafe(reason="garbage collector is global state")
+def test_load_refcount():
+    # Check that objects returned by np.load are directly freed based on
+    # their refcount, rather than needing the gc to collect them.
+
+    f = BytesIO()
+    np.savez(f, [1, 2, 3])
+    f.seek(0)
+
+    with assert_no_gc_cycles():
+        np.load(f)
+
+    f.seek(0)
+    dt = [("a", 'u1', 2), ("b", 'u1', 2)]
+    with assert_no_gc_cycles():
+        x = np.loadtxt(TextIO("0 1 2 3"), dtype=dt)
+        assert_equal(x, np.array([((0, 1), (2, 3))], dtype=dt))
+
+
+def test_load_multiple_arrays_until_eof():
+    f = BytesIO()
+    np.save(f, 1)
+    np.save(f, 2)
+    f.seek(0)
+    out1 = np.load(f)
+    assert out1 == 1
+    out2 = np.load(f)
+    assert out2 == 2
+    with pytest.raises(EOFError):
+        np.load(f)
+
+
+def test_savez_nopickle():
+    obj_array = np.array([1, 'hello'], dtype=object)
+    with temppath(suffix='.npz') as tmp:
+        np.savez(tmp, obj_array)
+
+    with temppath(suffix='.npz') as tmp:
+        with pytest.raises(ValueError, match="Object arrays cannot be saved when.*"):
+            np.savez(tmp, obj_array, allow_pickle=False)
+
+    with temppath(suffix='.npz') as tmp:
+        np.savez_compressed(tmp, obj_array)
+
+    with temppath(suffix='.npz') as tmp:
+        with pytest.raises(ValueError, match="Object arrays cannot be saved when.*"):
+            np.savez_compressed(tmp, obj_array, allow_pickle=False)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_loadtxt.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_loadtxt.py
new file mode 100644
index 0000000000000000000000000000000000000000..e1c802dd64064d9046355e6238688e808b9ed0b9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_loadtxt.py
@@ -0,0 +1,1099 @@
+"""
+Tests specific to `np.loadtxt` added during the move of loadtxt to be backed
+by C code.
+These tests complement those found in `test_io.py`.
+"""
+
+import os
+import sys
+from io import StringIO
+from tempfile import NamedTemporaryFile, mkstemp
+
+import pytest
+
+import numpy as np
+from numpy.ma.testutils import assert_equal
+from numpy.testing import HAS_REFCOUNT, IS_PYPY, assert_array_equal
+
+
+def test_scientific_notation():
+    """Test that both 'e' and 'E' are parsed correctly."""
+    data = StringIO(
+
+            "1.0e-1,2.0E1,3.0\n"
+            "4.0e-2,5.0E-1,6.0\n"
+            "7.0e-3,8.0E1,9.0\n"
+            "0.0e-4,1.0E-1,2.0"
+
+    )
+    expected = np.array(
+        [[0.1, 20., 3.0], [0.04, 0.5, 6], [0.007, 80., 9], [0, 0.1, 2]]
+    )
+    assert_array_equal(np.loadtxt(data, delimiter=","), expected)
+
+
+@pytest.mark.parametrize("comment", ["..", "//", "@-", "this is a comment:"])
+def test_comment_multiple_chars(comment):
+    content = "# IGNORE\n1.5, 2.5# ABC\n3.0,4.0# XXX\n5.5,6.0\n"
+    txt = StringIO(content.replace("#", comment))
+    a = np.loadtxt(txt, delimiter=",", comments=comment)
+    assert_equal(a, [[1.5, 2.5], [3.0, 4.0], [5.5, 6.0]])
+
+
+def mixed_types_structured():
+    """
+    Function providing heterogeneous input data with a structured dtype, along
+    with the associated structured array.
+    """
+    data = StringIO(
+
+            "1000;2.4;alpha;-34\n"
+            "2000;3.1;beta;29\n"
+            "3500;9.9;gamma;120\n"
+            "4090;8.1;delta;0\n"
+            "5001;4.4;epsilon;-99\n"
+            "6543;7.8;omega;-1\n"
+
+    )
+    dtype = np.dtype(
+        [('f0', np.uint16), ('f1', np.float64), ('f2', 'S7'), ('f3', np.int8)]
+    )
+    expected = np.array(
+        [
+            (1000, 2.4, "alpha", -34),
+            (2000, 3.1, "beta", 29),
+            (3500, 9.9, "gamma", 120),
+            (4090, 8.1, "delta", 0),
+            (5001, 4.4, "epsilon", -99),
+            (6543, 7.8, "omega", -1)
+        ],
+        dtype=dtype
+    )
+    return data, dtype, expected
+
+
+@pytest.mark.parametrize('skiprows', [0, 1, 2, 3])
+def test_structured_dtype_and_skiprows_no_empty_lines(skiprows):
+    data, dtype, expected = mixed_types_structured()
+    a = np.loadtxt(data, dtype=dtype, delimiter=";", skiprows=skiprows)
+    assert_array_equal(a, expected[skiprows:])
+
+
+def test_unpack_structured():
+    data, dtype, expected = mixed_types_structured()
+
+    a, b, c, d = np.loadtxt(data, dtype=dtype, delimiter=";", unpack=True)
+    assert_array_equal(a, expected["f0"])
+    assert_array_equal(b, expected["f1"])
+    assert_array_equal(c, expected["f2"])
+    assert_array_equal(d, expected["f3"])
+
+
+def test_structured_dtype_with_shape():
+    dtype = np.dtype([("a", "u1", 2), ("b", "u1", 2)])
+    data = StringIO("0,1,2,3\n6,7,8,9\n")
+    expected = np.array([((0, 1), (2, 3)), ((6, 7), (8, 9))], dtype=dtype)
+    assert_array_equal(np.loadtxt(data, delimiter=",", dtype=dtype), expected)
+
+
+def test_structured_dtype_with_multi_shape():
+    dtype = np.dtype([("a", "u1", (2, 2))])
+    data = StringIO("0 1 2 3\n")
+    expected = np.array([(((0, 1), (2, 3)),)], dtype=dtype)
+    assert_array_equal(np.loadtxt(data, dtype=dtype), expected)
+
+
+def test_nested_structured_subarray():
+    # Test from gh-16678
+    point = np.dtype([('x', float), ('y', float)])
+    dt = np.dtype([('code', int), ('points', point, (2,))])
+    data = StringIO("100,1,2,3,4\n200,5,6,7,8\n")
+    expected = np.array(
+        [
+            (100, [(1., 2.), (3., 4.)]),
+            (200, [(5., 6.), (7., 8.)]),
+        ],
+        dtype=dt
+    )
+    assert_array_equal(np.loadtxt(data, dtype=dt, delimiter=","), expected)
+
+
+def test_structured_dtype_offsets():
+    # An aligned structured dtype will have additional padding
+    dt = np.dtype("i1, i4, i1, i4, i1, i4", align=True)
+    data = StringIO("1,2,3,4,5,6\n7,8,9,10,11,12\n")
+    expected = np.array([(1, 2, 3, 4, 5, 6), (7, 8, 9, 10, 11, 12)], dtype=dt)
+    assert_array_equal(np.loadtxt(data, delimiter=",", dtype=dt), expected)
+
+
+@pytest.mark.parametrize("param", ("skiprows", "max_rows"))
+def test_exception_negative_row_limits(param):
+    """skiprows and max_rows should raise for negative parameters."""
+    with pytest.raises(ValueError, match="argument must be nonnegative"):
+        np.loadtxt("foo.bar", **{param: -3})
+
+
+@pytest.mark.parametrize("param", ("skiprows", "max_rows"))
+def test_exception_noninteger_row_limits(param):
+    with pytest.raises(TypeError, match="argument must be an integer"):
+        np.loadtxt("foo.bar", **{param: 1.0})
+
+
+@pytest.mark.parametrize(
+    "data, shape",
+    [
+        ("1 2 3 4 5\n", (1, 5)),  # Single row
+        ("1\n2\n3\n4\n5\n", (5, 1)),  # Single column
+    ]
+)
+def test_ndmin_single_row_or_col(data, shape):
+    arr = np.array([1, 2, 3, 4, 5])
+    arr2d = arr.reshape(shape)
+
+    assert_array_equal(np.loadtxt(StringIO(data), dtype=int), arr)
+    assert_array_equal(np.loadtxt(StringIO(data), dtype=int, ndmin=0), arr)
+    assert_array_equal(np.loadtxt(StringIO(data), dtype=int, ndmin=1), arr)
+    assert_array_equal(np.loadtxt(StringIO(data), dtype=int, ndmin=2), arr2d)
+
+
+@pytest.mark.parametrize("badval", [-1, 3, None, "plate of shrimp"])
+def test_bad_ndmin(badval):
+    with pytest.raises(ValueError, match="Illegal value of ndmin keyword"):
+        np.loadtxt("foo.bar", ndmin=badval)
+
+
+@pytest.mark.parametrize(
+    "ws",
+    (
+            " ",  # space
+            "\t",  # tab
+            "\u2003",  # em
+            "\u00A0",  # non-break
+            "\u3000",  # ideographic space
+    )
+)
+def test_blank_lines_spaces_delimit(ws):
+    txt = StringIO(
+        f"1 2{ws}30\n\n{ws}\n"
+        f"4 5 60{ws}\n  {ws}  \n"
+        f"7 8 {ws} 90\n  # comment\n"
+        f"3 2 1"
+    )
+    # NOTE: It is unclear that the `  # comment` should succeed. Except
+    #       for delimiter=None, which should use any whitespace (and maybe
+    #       should just be implemented closer to Python
+    expected = np.array([[1, 2, 30], [4, 5, 60], [7, 8, 90], [3, 2, 1]])
+    assert_equal(
+        np.loadtxt(txt, dtype=int, delimiter=None, comments="#"), expected
+    )
+
+
+def test_blank_lines_normal_delimiter():
+    txt = StringIO('1,2,30\n\n4,5,60\n\n7,8,90\n# comment\n3,2,1')
+    expected = np.array([[1, 2, 30], [4, 5, 60], [7, 8, 90], [3, 2, 1]])
+    assert_equal(
+        np.loadtxt(txt, dtype=int, delimiter=',', comments="#"), expected
+    )
+
+
+@pytest.mark.parametrize("dtype", (float, object))
+def test_maxrows_no_blank_lines(dtype):
+    txt = StringIO("1.5,2.5\n3.0,4.0\n5.5,6.0")
+    res = np.loadtxt(txt, dtype=dtype, delimiter=",", max_rows=2)
+    assert_equal(res.dtype, dtype)
+    assert_equal(res, np.array([["1.5", "2.5"], ["3.0", "4.0"]], dtype=dtype))
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+@pytest.mark.parametrize("dtype", (np.dtype("f8"), np.dtype("i2")))
+def test_exception_message_bad_values(dtype):
+    txt = StringIO("1,2\n3,XXX\n5,6")
+    msg = f"could not convert string 'XXX' to {dtype} at row 1, column 2"
+    with pytest.raises(ValueError, match=msg):
+        np.loadtxt(txt, dtype=dtype, delimiter=",")
+
+
+def test_converters_negative_indices():
+    txt = StringIO('1.5,2.5\n3.0,XXX\n5.5,6.0')
+    conv = {-1: lambda s: np.nan if s == 'XXX' else float(s)}
+    expected = np.array([[1.5, 2.5], [3.0, np.nan], [5.5, 6.0]])
+    res = np.loadtxt(txt, dtype=np.float64, delimiter=",", converters=conv)
+    assert_equal(res, expected)
+
+
+def test_converters_negative_indices_with_usecols():
+    txt = StringIO('1.5,2.5,3.5\n3.0,4.0,XXX\n5.5,6.0,7.5\n')
+    conv = {-1: lambda s: np.nan if s == 'XXX' else float(s)}
+    expected = np.array([[1.5, 3.5], [3.0, np.nan], [5.5, 7.5]])
+    res = np.loadtxt(
+        txt,
+        dtype=np.float64,
+        delimiter=",",
+        converters=conv,
+        usecols=[0, -1],
+    )
+    assert_equal(res, expected)
+
+    # Second test with variable number of rows:
+    res = np.loadtxt(StringIO('''0,1,2\n0,1,2,3,4'''), delimiter=",",
+                     usecols=[0, -1], converters={-1: (lambda x: -1)})
+    assert_array_equal(res, [[0, -1], [0, -1]])
+
+
+def test_ragged_error():
+    rows = ["1,2,3", "1,2,3", "4,3,2,1"]
+    with pytest.raises(ValueError,
+            match="the number of columns changed from 3 to 4 at row 3"):
+        np.loadtxt(rows, delimiter=",")
+
+
+def test_ragged_usecols():
+    # usecols, and negative ones, work even with varying number of columns.
+    txt = StringIO("0,0,XXX\n0,XXX,0,XXX\n0,XXX,XXX,0,XXX\n")
+    expected = np.array([[0, 0], [0, 0], [0, 0]])
+    res = np.loadtxt(txt, dtype=float, delimiter=",", usecols=[0, -2])
+    assert_equal(res, expected)
+
+    txt = StringIO("0,0,XXX\n0\n0,XXX,XXX,0,XXX\n")
+    with pytest.raises(ValueError,
+                match="invalid column index -2 at row 2 with 1 columns"):
+        # There is no -2 column in the second row:
+        np.loadtxt(txt, dtype=float, delimiter=",", usecols=[0, -2])
+
+
+def test_empty_usecols():
+    txt = StringIO("0,0,XXX\n0,XXX,0,XXX\n0,XXX,XXX,0,XXX\n")
+    res = np.loadtxt(txt, dtype=np.dtype([]), delimiter=",", usecols=[])
+    assert res.shape == (3,)
+    assert res.dtype == np.dtype([])
+
+
+@pytest.mark.parametrize("c1", ["a", "の", "🫕"])
+@pytest.mark.parametrize("c2", ["a", "の", "🫕"])
+def test_large_unicode_characters(c1, c2):
+    # c1 and c2 span ascii, 16bit and 32bit range.
+    txt = StringIO(f"a,{c1},c,1.0\ne,{c2},2.0,g")
+    res = np.loadtxt(txt, dtype=np.dtype('U12'), delimiter=",")
+    expected = np.array(
+        [f"a,{c1},c,1.0".split(","), f"e,{c2},2.0,g".split(",")],
+        dtype=np.dtype('U12')
+    )
+    assert_equal(res, expected)
+
+
+def test_unicode_with_converter():
+    txt = StringIO("cat,dog\nαβγ,δεζ\nabc,def\n")
+    conv = {0: lambda s: s.upper()}
+    res = np.loadtxt(
+        txt,
+        dtype=np.dtype("U12"),
+        converters=conv,
+        delimiter=",",
+        encoding=None
+    )
+    expected = np.array([['CAT', 'dog'], ['ΑΒΓ', 'δεζ'], ['ABC', 'def']])
+    assert_equal(res, expected)
+
+
+def test_converter_with_structured_dtype():
+    txt = StringIO('1.5,2.5,Abc\n3.0,4.0,dEf\n5.5,6.0,ghI\n')
+    dt = np.dtype([('m', np.int32), ('r', np.float32), ('code', 'U8')])
+    conv = {0: lambda s: int(10 * float(s)), -1: lambda s: s.upper()}
+    res = np.loadtxt(txt, dtype=dt, delimiter=",", converters=conv)
+    expected = np.array(
+        [(15, 2.5, 'ABC'), (30, 4.0, 'DEF'), (55, 6.0, 'GHI')], dtype=dt
+    )
+    assert_equal(res, expected)
+
+
+def test_converter_with_unicode_dtype():
+    """
+    With the 'bytes' encoding, tokens are encoded prior to being
+    passed to the converter. This means that the output of the converter may
+    be bytes instead of unicode as expected by `read_rows`.
+
+    This test checks that outputs from the above scenario are properly decoded
+    prior to parsing by `read_rows`.
+    """
+    txt = StringIO('abc,def\nrst,xyz')
+    conv = bytes.upper
+    res = np.loadtxt(
+            txt, dtype=np.dtype("U3"), converters=conv, delimiter=",",
+            encoding="bytes")
+    expected = np.array([['ABC', 'DEF'], ['RST', 'XYZ']])
+    assert_equal(res, expected)
+
+
+def test_read_huge_row():
+    row = "1.5, 2.5," * 50000
+    row = row[:-1] + "\n"
+    txt = StringIO(row * 2)
+    res = np.loadtxt(txt, delimiter=",", dtype=float)
+    assert_equal(res, np.tile([1.5, 2.5], (2, 50000)))
+
+
+@pytest.mark.parametrize("dtype", "edfgFDG")
+def test_huge_float(dtype):
+    # Covers a non-optimized path that is rarely taken:
+    field = "0" * 1000 + ".123456789"
+    dtype = np.dtype(dtype)
+    value = np.loadtxt([field], dtype=dtype)[()]
+    assert value == dtype.type("0.123456789")
+
+
+@pytest.mark.parametrize(
+    ("given_dtype", "expected_dtype"),
+    [
+        ("S", np.dtype("S5")),
+        ("U", np.dtype("U5")),
+    ],
+)
+def test_string_no_length_given(given_dtype, expected_dtype):
+    """
+    The given dtype is just 'S' or 'U' with no length. In these cases, the
+    length of the resulting dtype is determined by the longest string found
+    in the file.
+    """
+    txt = StringIO("AAA,5-1\nBBBBB,0-3\nC,4-9\n")
+    res = np.loadtxt(txt, dtype=given_dtype, delimiter=",")
+    expected = np.array(
+        [['AAA', '5-1'], ['BBBBB', '0-3'], ['C', '4-9']], dtype=expected_dtype
+    )
+    assert_equal(res, expected)
+    assert_equal(res.dtype, expected_dtype)
+
+
+def test_float_conversion():
+    """
+    Some tests that the conversion to float64 works as accurately as the
+    Python built-in `float` function. In a naive version of the float parser,
+    these strings resulted in values that were off by an ULP or two.
+    """
+    strings = [
+        '0.9999999999999999',
+        '9876543210.123456',
+        '5.43215432154321e+300',
+        '0.901',
+        '0.333',
+    ]
+    txt = StringIO('\n'.join(strings))
+    res = np.loadtxt(txt)
+    expected = np.array([float(s) for s in strings])
+    assert_equal(res, expected)
+
+
+def test_bool():
+    # Simple test for bool via integer
+    txt = StringIO("1, 0\n10, -1")
+    res = np.loadtxt(txt, dtype=bool, delimiter=",")
+    assert res.dtype == bool
+    assert_array_equal(res, [[True, False], [True, True]])
+    # Make sure we use only 1 and 0 on the byte level:
+    assert_array_equal(res.view(np.uint8), [[1, 0], [1, 1]])
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+@pytest.mark.filterwarnings("error:.*integer via a float.*:DeprecationWarning")
+def test_integer_signs(dtype):
+    dtype = np.dtype(dtype)
+    assert np.loadtxt(["+2"], dtype=dtype) == 2
+    if dtype.kind == "u":
+        with pytest.raises(ValueError):
+            np.loadtxt(["-1\n"], dtype=dtype)
+    else:
+        assert np.loadtxt(["-2\n"], dtype=dtype) == -2
+
+    for sign in ["++", "+-", "--", "-+"]:
+        with pytest.raises(ValueError):
+            np.loadtxt([f"{sign}2\n"], dtype=dtype)
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"])
+@pytest.mark.filterwarnings("error:.*integer via a float.*:DeprecationWarning")
+def test_implicit_cast_float_to_int_fails(dtype):
+    txt = StringIO("1.0, 2.1, 3.7\n4, 5, 6")
+    with pytest.raises(ValueError):
+        np.loadtxt(txt, dtype=dtype, delimiter=",")
+
+@pytest.mark.parametrize("dtype", (np.complex64, np.complex128))
+@pytest.mark.parametrize("with_parens", (False, True))
+def test_complex_parsing(dtype, with_parens):
+    s = "(1.0-2.5j),3.75,(7+-5.0j)\n(4),(-19e2j),(0)"
+    if not with_parens:
+        s = s.replace("(", "").replace(")", "")
+
+    res = np.loadtxt(StringIO(s), dtype=dtype, delimiter=",")
+    expected = np.array(
+        [[1.0 - 2.5j, 3.75, 7 - 5j], [4.0, -1900j, 0]], dtype=dtype
+    )
+    assert_equal(res, expected)
+
+
+def test_read_from_generator():
+    def gen():
+        for i in range(4):
+            yield f"{i},{2 * i},{i**2}"
+
+    res = np.loadtxt(gen(), dtype=int, delimiter=",")
+    expected = np.array([[0, 0, 0], [1, 2, 1], [2, 4, 4], [3, 6, 9]])
+    assert_equal(res, expected)
+
+
+def test_read_from_generator_multitype():
+    def gen():
+        for i in range(3):
+            yield f"{i} {i / 4}"
+
+    res = np.loadtxt(gen(), dtype="i, d", delimiter=" ")
+    expected = np.array([(0, 0.0), (1, 0.25), (2, 0.5)], dtype="i, d")
+    assert_equal(res, expected)
+
+
+def test_read_from_bad_generator():
+    def gen():
+        yield from ["1,2", b"3, 5", 12738]
+
+    with pytest.raises(
+            TypeError, match=r"non-string returned while reading data"):
+        np.loadtxt(gen(), dtype="i, i", delimiter=",")
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+def test_object_cleanup_on_read_error():
+    sentinel = object()
+    already_read = 0
+
+    def conv(x):
+        nonlocal already_read
+        if already_read > 4999:
+            raise ValueError("failed half-way through!")
+        already_read += 1
+        return sentinel
+
+    txt = StringIO("x\n" * 10000)
+
+    with pytest.raises(ValueError, match="at row 5000, column 1"):
+        np.loadtxt(txt, dtype=object, converters={0: conv})
+
+    assert sys.getrefcount(sentinel) == 2
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+def test_character_not_bytes_compatible():
+    """Test exception when a character cannot be encoded as 'S'."""
+    data = StringIO("–")  # == \u2013
+    with pytest.raises(ValueError):
+        np.loadtxt(data, dtype="S5")
+
+
+@pytest.mark.parametrize("conv", (0, [float], ""))
+def test_invalid_converter(conv):
+    msg = (
+        "converters must be a dictionary mapping columns to converter "
+        "functions or a single callable."
+    )
+    with pytest.raises(TypeError, match=msg):
+        np.loadtxt(StringIO("1 2\n3 4"), converters=conv)
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+def test_converters_dict_raises_non_integer_key():
+    with pytest.raises(TypeError, match="keys of the converters dict"):
+        np.loadtxt(StringIO("1 2\n3 4"), converters={"a": int})
+    with pytest.raises(TypeError, match="keys of the converters dict"):
+        np.loadtxt(StringIO("1 2\n3 4"), converters={"a": int}, usecols=0)
+
+
+@pytest.mark.parametrize("bad_col_ind", (3, -3))
+def test_converters_dict_raises_non_col_key(bad_col_ind):
+    data = StringIO("1 2\n3 4")
+    with pytest.raises(ValueError, match="converter specified for column"):
+        np.loadtxt(data, converters={bad_col_ind: int})
+
+
+def test_converters_dict_raises_val_not_callable():
+    with pytest.raises(TypeError,
+                match="values of the converters dictionary must be callable"):
+        np.loadtxt(StringIO("1 2\n3 4"), converters={0: 1})
+
+
+@pytest.mark.parametrize("q", ('"', "'", "`"))
+def test_quoted_field(q):
+    txt = StringIO(
+        f"{q}alpha, x{q}, 2.5\n{q}beta, y{q}, 4.5\n{q}gamma, z{q}, 5.0\n"
+    )
+    dtype = np.dtype([('f0', 'U8'), ('f1', np.float64)])
+    expected = np.array(
+        [("alpha, x", 2.5), ("beta, y", 4.5), ("gamma, z", 5.0)], dtype=dtype
+    )
+
+    res = np.loadtxt(txt, dtype=dtype, delimiter=",", quotechar=q)
+    assert_array_equal(res, expected)
+
+
+@pytest.mark.parametrize("q", ('"', "'", "`"))
+def test_quoted_field_with_whitepace_delimiter(q):
+    txt = StringIO(
+        f"{q}alpha, x{q}     2.5\n{q}beta, y{q} 4.5\n{q}gamma, z{q}   5.0\n"
+    )
+    dtype = np.dtype([('f0', 'U8'), ('f1', np.float64)])
+    expected = np.array(
+        [("alpha, x", 2.5), ("beta, y", 4.5), ("gamma, z", 5.0)], dtype=dtype
+    )
+
+    res = np.loadtxt(txt, dtype=dtype, delimiter=None, quotechar=q)
+    assert_array_equal(res, expected)
+
+
+def test_quote_support_default():
+    """Support for quoted fields is disabled by default."""
+    txt = StringIO('"lat,long", 45, 30\n')
+    dtype = np.dtype([('f0', 'U24'), ('f1', np.float64), ('f2', np.float64)])
+
+    with pytest.raises(ValueError,
+            match="the dtype passed requires 3 columns but 4 were"):
+        np.loadtxt(txt, dtype=dtype, delimiter=",")
+
+    # Enable quoting support with non-None value for quotechar param
+    txt.seek(0)
+    expected = np.array([("lat,long", 45., 30.)], dtype=dtype)
+
+    res = np.loadtxt(txt, dtype=dtype, delimiter=",", quotechar='"')
+    assert_array_equal(res, expected)
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+def test_quotechar_multichar_error():
+    txt = StringIO("1,2\n3,4")
+    msg = r".*must be a single unicode character or None"
+    with pytest.raises(TypeError, match=msg):
+        np.loadtxt(txt, delimiter=",", quotechar="''")
+
+
+def test_comment_multichar_error_with_quote():
+    txt = StringIO("1,2\n3,4")
+    msg = (
+        "when multiple comments or a multi-character comment is given, "
+        "quotes are not supported."
+    )
+    with pytest.raises(ValueError, match=msg):
+        np.loadtxt(txt, delimiter=",", comments="123", quotechar='"')
+    with pytest.raises(ValueError, match=msg):
+        np.loadtxt(txt, delimiter=",", comments=["#", "%"], quotechar='"')
+
+    # A single character string in a tuple is unpacked though:
+    res = np.loadtxt(txt, delimiter=",", comments=("#",), quotechar="'")
+    assert_equal(res, [[1, 2], [3, 4]])
+
+
+def test_structured_dtype_with_quotes():
+    data = StringIO(
+
+            "1000;2.4;'alpha';-34\n"
+            "2000;3.1;'beta';29\n"
+            "3500;9.9;'gamma';120\n"
+            "4090;8.1;'delta';0\n"
+            "5001;4.4;'epsilon';-99\n"
+            "6543;7.8;'omega';-1\n"
+
+    )
+    dtype = np.dtype(
+        [('f0', np.uint16), ('f1', np.float64), ('f2', 'S7'), ('f3', np.int8)]
+    )
+    expected = np.array(
+        [
+            (1000, 2.4, "alpha", -34),
+            (2000, 3.1, "beta", 29),
+            (3500, 9.9, "gamma", 120),
+            (4090, 8.1, "delta", 0),
+            (5001, 4.4, "epsilon", -99),
+            (6543, 7.8, "omega", -1)
+        ],
+        dtype=dtype
+    )
+    res = np.loadtxt(data, dtype=dtype, delimiter=";", quotechar="'")
+    assert_array_equal(res, expected)
+
+
+def test_quoted_field_is_not_empty():
+    txt = StringIO('1\n\n"4"\n""')
+    expected = np.array(["1", "4", ""], dtype="U1")
+    res = np.loadtxt(txt, delimiter=",", dtype="U1", quotechar='"')
+    assert_equal(res, expected)
+
+def test_quoted_field_is_not_empty_nonstrict():
+    # Same as test_quoted_field_is_not_empty but check that we are not strict
+    # about missing closing quote (this is the `csv.reader` default also)
+    txt = StringIO('1\n\n"4"\n"')
+    expected = np.array(["1", "4", ""], dtype="U1")
+    res = np.loadtxt(txt, delimiter=",", dtype="U1", quotechar='"')
+    assert_equal(res, expected)
+
+def test_consecutive_quotechar_escaped():
+    txt = StringIO('"Hello, my name is ""Monty""!"')
+    expected = np.array('Hello, my name is "Monty"!', dtype="U40")
+    res = np.loadtxt(txt, dtype="U40", delimiter=",", quotechar='"')
+    assert_equal(res, expected)
+
+
+@pytest.mark.parametrize("data", ("", "\n\n\n", "# 1 2 3\n# 4 5 6\n"))
+@pytest.mark.parametrize("ndmin", (0, 1, 2))
+@pytest.mark.parametrize("usecols", [None, (1, 2, 3)])
+def test_warn_on_no_data(data, ndmin, usecols):
+    """Check that a UserWarning is emitted when no data is read from input."""
+    if usecols is not None:
+        expected_shape = (0, 3)
+    elif ndmin == 2:
+        expected_shape = (0, 1)  # guess a single column?!
+    else:
+        expected_shape = (0,)
+
+    txt = StringIO(data)
+    with pytest.warns(UserWarning, match="input contained no data"):
+        res = np.loadtxt(txt, ndmin=ndmin, usecols=usecols)
+    assert res.shape == expected_shape
+
+    with NamedTemporaryFile(mode="w") as fh:
+        fh.write(data)
+        fh.seek(0)
+        with pytest.warns(UserWarning, match="input contained no data"):
+            res = np.loadtxt(txt, ndmin=ndmin, usecols=usecols)
+        assert res.shape == expected_shape
+
+@pytest.mark.parametrize("skiprows", (2, 3))
+def test_warn_on_skipped_data(skiprows):
+    data = "1 2 3\n4 5 6"
+    txt = StringIO(data)
+    with pytest.warns(UserWarning, match="input contained no data"):
+        np.loadtxt(txt, skiprows=skiprows)
+
+
+@pytest.mark.parametrize(["dtype", "value"], [
+        ("i2", 0x0001), ("u2", 0x0001),
+        ("i4", 0x00010203), ("u4", 0x00010203),
+        ("i8", 0x0001020304050607), ("u8", 0x0001020304050607),
+        # The following values are constructed to lead to unique bytes:
+        ("float16", 3.07e-05),
+        ("float32", 9.2557e-41), ("complex64", 9.2557e-41 + 2.8622554e-29j),
+        ("float64", -1.758571353180402e-24),
+        # Here and below, the repr side-steps a small loss of precision in
+        # complex `str` in PyPy (which is probably fine, as repr works):
+        ("complex128", repr(5.406409232372729e-29 - 1.758571353180402e-24j)),
+        # Use integer values that fit into double.  Everything else leads to
+        # problems due to longdoubles going via double and decimal strings
+        # causing rounding errors.
+        ("longdouble", 0x01020304050607),
+        ("clongdouble", repr(0x01020304050607 + (0x00121314151617 * 1j))),
+        ("U2", "\U00010203\U000a0b0c")])
+@pytest.mark.parametrize("swap", [True, False])
+def test_byteswapping_and_unaligned(dtype, value, swap):
+    # Try to create "interesting" values within the valid unicode range:
+    dtype = np.dtype(dtype)
+    data = [f"x,{value}\n"]  # repr as PyPy `str` truncates some
+    if swap:
+        dtype = dtype.newbyteorder()
+    full_dt = np.dtype([("a", "S1"), ("b", dtype)], align=False)
+    # The above ensures that the interesting "b" field is unaligned:
+    assert full_dt.fields["b"][1] == 1
+    res = np.loadtxt(data, dtype=full_dt, delimiter=",",
+                     max_rows=1)  # max-rows prevents over-allocation
+    assert res["b"] == dtype.type(value)
+
+
+@pytest.mark.parametrize("dtype",
+        np.typecodes["AllInteger"] + "efdFD" + "?")
+def test_unicode_whitespace_stripping(dtype):
+    # Test that all numeric types (and bool) strip whitespace correctly
+    # \u202F is a narrow no-break space, `\n` is just a whitespace if quoted.
+    # Currently, skip float128 as it did not always support this and has no
+    # "custom" parsing:
+    txt = StringIO(' 3 ,"\u202F2\n"')
+    res = np.loadtxt(txt, dtype=dtype, delimiter=",", quotechar='"')
+    assert_array_equal(res, np.array([3, 2]).astype(dtype))
+
+
+@pytest.mark.parametrize("dtype", "FD")
+def test_unicode_whitespace_stripping_complex(dtype):
+    # Complex has a few extra cases since it has two components and
+    # parentheses
+    line = " 1 , 2+3j , ( 4+5j ), ( 6+-7j )  , 8j , ( 9j ) \n"
+    data = [line, line.replace(" ", "\u202F")]
+    res = np.loadtxt(data, dtype=dtype, delimiter=',')
+    assert_array_equal(res, np.array([[1, 2 + 3j, 4 + 5j, 6 - 7j, 8j, 9j]] * 2))
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+@pytest.mark.parametrize("dtype", "FD")
+@pytest.mark.parametrize("field",
+        ["1 +2j", "1+ 2j", "1+2 j", "1+-+3", "(1j", "(1", "(1+2j", "1+2j)"])
+def test_bad_complex(dtype, field):
+    with pytest.raises(ValueError):
+        np.loadtxt([field + "\n"], dtype=dtype, delimiter=",")
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+@pytest.mark.parametrize("dtype",
+            np.typecodes["AllInteger"] + "efgdFDG" + "?")
+def test_nul_character_error(dtype):
+    # Test that a \0 character is correctly recognized as an error even if
+    # what comes before is valid (not everything gets parsed internally).
+    if dtype.lower() == "g":
+        pytest.xfail("longdouble/clongdouble assignment may misbehave.")
+    with pytest.raises(ValueError):
+        np.loadtxt(["1\000"], dtype=dtype, delimiter=",", quotechar='"')
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+@pytest.mark.parametrize("dtype",
+        np.typecodes["AllInteger"] + "efgdFDG" + "?")
+def test_no_thousands_support(dtype):
+    # Mainly to document behaviour, Python supports thousands like 1_1.
+    # (e and G may end up using different conversion and support it, this is
+    # a bug but happens...)
+    if dtype == "e":
+        pytest.skip("half assignment currently uses Python float converter")
+    if dtype in "eG":
+        pytest.xfail("clongdouble assignment is buggy (uses `complex`?).")
+
+    assert int("1_1") == float("1_1") == complex("1_1") == 11
+    with pytest.raises(ValueError):
+        np.loadtxt(["1_1\n"], dtype=dtype)
+
+
+@pytest.mark.parametrize("data", [
+    ["1,2\n", "2\n,3\n"],
+    ["1,2\n", "2\r,3\n"]])
+def test_bad_newline_in_iterator(data):
+    # In NumPy <=1.22 this was accepted, because newlines were completely
+    # ignored when the input was an iterable.  This could be changed, but right
+    # now, we raise an error.
+    msg = "Found an unquoted embedded newline within a single line"
+    with pytest.raises(ValueError, match=msg):
+        np.loadtxt(data, delimiter=",")
+
+
+@pytest.mark.parametrize("data", [
+    ["1,2\n", "2,3\r\n"],  # a universal newline
+    ["1,2\n", "'2\n',3\n"],  # a quoted newline
+    ["1,2\n", "'2\r',3\n"],
+    ["1,2\n", "'2\r\n',3\n"],
+])
+def test_good_newline_in_iterator(data):
+    # The quoted newlines will be untransformed here, but are just whitespace.
+    res = np.loadtxt(data, delimiter=",", quotechar="'")
+    assert_array_equal(res, [[1., 2.], [2., 3.]])
+
+
+@pytest.mark.parametrize("newline", ["\n", "\r", "\r\n"])
+def test_universal_newlines_quoted(newline):
+    # Check that universal newline support within the tokenizer is not applied
+    # to quoted fields.  (note that lines must end in newline or quoted
+    # fields will not include a newline at all)
+    data = ['1,"2\n"\n', '3,"4\n', '1"\n']
+    data = [row.replace("\n", newline) for row in data]
+    res = np.loadtxt(data, dtype=object, delimiter=",", quotechar='"')
+    assert_array_equal(res, [['1', f'2{newline}'], ['3', f'4{newline}1']])
+
+
+def test_null_character():
+    # Basic tests to check that the NUL character is not special:
+    res = np.loadtxt(["1\0002\0003\n", "4\0005\0006"], delimiter="\000")
+    assert_array_equal(res, [[1, 2, 3], [4, 5, 6]])
+
+    # Also not as part of a field (avoid unicode/arrays as unicode strips \0)
+    res = np.loadtxt(["1\000,2\000,3\n", "4\000,5\000,6"],
+                     delimiter=",", dtype=object)
+    assert res.tolist() == [["1\000", "2\000", "3"], ["4\000", "5\000", "6"]]
+
+
+def test_iterator_fails_getting_next_line():
+    class BadSequence:
+        def __len__(self):
+            return 100
+
+        def __getitem__(self, item):
+            if item == 50:
+                raise RuntimeError("Bad things happened!")
+            return f"{item}, {item + 1}"
+
+    with pytest.raises(RuntimeError, match="Bad things happened!"):
+        np.loadtxt(BadSequence(), dtype=int, delimiter=",")
+
+
+class TestCReaderUnitTests:
+    # These are internal tests for path that should not be possible to hit
+    # unless things go very very wrong somewhere.
+    def test_not_an_filelike(self):
+        with pytest.raises(AttributeError, match=".*read"):
+            np._core._multiarray_umath._load_from_filelike(
+                object(), dtype=np.dtype("i"), filelike=True)
+
+    def test_filelike_read_fails(self):
+        # Can only be reached if loadtxt opens the file, so it is hard to do
+        # via the public interface (although maybe not impossible considering
+        # the current "DataClass" backing).
+        class BadFileLike:
+            counter = 0
+
+            def read(self, size):
+                self.counter += 1
+                if self.counter > 20:
+                    raise RuntimeError("Bad bad bad!")
+                return "1,2,3\n"
+
+        with pytest.raises(RuntimeError, match="Bad bad bad!"):
+            np._core._multiarray_umath._load_from_filelike(
+                BadFileLike(), dtype=np.dtype("i"), filelike=True)
+
+    def test_filelike_bad_read(self):
+        # Can only be reached if loadtxt opens the file, so it is hard to do
+        # via the public interface (although maybe not impossible considering
+        # the current "DataClass" backing).
+
+        class BadFileLike:
+            counter = 0
+
+            def read(self, size):
+                return 1234  # not a string!
+
+        with pytest.raises(TypeError,
+                    match="non-string returned while reading data"):
+            np._core._multiarray_umath._load_from_filelike(
+                BadFileLike(), dtype=np.dtype("i"), filelike=True)
+
+    def test_not_an_iter(self):
+        with pytest.raises(TypeError,
+                    match="error reading from object, expected an iterable"):
+            np._core._multiarray_umath._load_from_filelike(
+                object(), dtype=np.dtype("i"), filelike=False)
+
+    def test_bad_type(self):
+        with pytest.raises(TypeError, match="internal error: dtype must"):
+            np._core._multiarray_umath._load_from_filelike(
+                object(), dtype="i", filelike=False)
+
+    def test_bad_encoding(self):
+        with pytest.raises(TypeError, match="encoding must be a unicode"):
+            np._core._multiarray_umath._load_from_filelike(
+                object(), dtype=np.dtype("i"), filelike=False, encoding=123)
+
+    @pytest.mark.parametrize("newline", ["\r", "\n", "\r\n"])
+    def test_manual_universal_newlines(self, newline):
+        # This is currently not available to users, because we should always
+        # open files with universal newlines enabled `newlines=None`.
+        # (And reading from an iterator uses slightly different code paths.)
+        # We have no real support for `newline="\r"` or `newline="\n" as the
+        # user cannot specify those options.
+        data = StringIO('0\n1\n"2\n"\n3\n4 #\n'.replace("\n", newline),
+                        newline="")
+
+        res = np._core._multiarray_umath._load_from_filelike(
+            data, dtype=np.dtype("U10"), filelike=True,
+            quote='"', comment="#", skiplines=1)
+        assert_array_equal(res[:, 0], ["1", f"2{newline}", "3", "4 "])
+
+
+def test_delimiter_comment_collision_raises():
+    with pytest.raises(TypeError, match=".*control characters.*incompatible"):
+        np.loadtxt(StringIO("1, 2, 3"), delimiter=",", comments=",")
+
+
+def test_delimiter_quotechar_collision_raises():
+    with pytest.raises(TypeError, match=".*control characters.*incompatible"):
+        np.loadtxt(StringIO("1, 2, 3"), delimiter=",", quotechar=",")
+
+
+def test_comment_quotechar_collision_raises():
+    with pytest.raises(TypeError, match=".*control characters.*incompatible"):
+        np.loadtxt(StringIO("1 2 3"), comments="#", quotechar="#")
+
+
+def test_delimiter_and_multiple_comments_collision_raises():
+    with pytest.raises(
+        TypeError, match="Comment characters.*cannot include the delimiter"
+    ):
+        np.loadtxt(StringIO("1, 2, 3"), delimiter=",", comments=["#", ","])
+
+
+@pytest.mark.parametrize(
+    "ws",
+    (
+        " ",  # space
+        "\t",  # tab
+        "\u2003",  # em
+        "\u00A0",  # non-break
+        "\u3000",  # ideographic space
+    )
+)
+def test_collision_with_default_delimiter_raises(ws):
+    with pytest.raises(TypeError, match=".*control characters.*incompatible"):
+        np.loadtxt(StringIO(f"1{ws}2{ws}3\n4{ws}5{ws}6\n"), comments=ws)
+    with pytest.raises(TypeError, match=".*control characters.*incompatible"):
+        np.loadtxt(StringIO(f"1{ws}2{ws}3\n4{ws}5{ws}6\n"), quotechar=ws)
+
+
+@pytest.mark.parametrize("nl", ("\n", "\r"))
+def test_control_character_newline_raises(nl):
+    txt = StringIO(f"1{nl}2{nl}3{nl}{nl}4{nl}5{nl}6{nl}{nl}")
+    msg = "control character.*cannot be a newline"
+    with pytest.raises(TypeError, match=msg):
+        np.loadtxt(txt, delimiter=nl)
+    with pytest.raises(TypeError, match=msg):
+        np.loadtxt(txt, comments=nl)
+    with pytest.raises(TypeError, match=msg):
+        np.loadtxt(txt, quotechar=nl)
+
+
+@pytest.mark.parametrize(
+    ("generic_data", "long_datum", "unitless_dtype", "expected_dtype"),
+    [
+        ("2012-03", "2013-01-15", "M8", "M8[D]"),  # Datetimes
+        ("spam-a-lot", "tis_but_a_scratch", "U", "U17"),  # str
+    ],
+)
+@pytest.mark.parametrize("nrows", (10, 50000, 60000))  # lt, eq, gt chunksize
+def test_parametric_unit_discovery(
+    generic_data, long_datum, unitless_dtype, expected_dtype, nrows
+):
+    """Check that the correct unit (e.g. month, day, second) is discovered from
+    the data when a user specifies a unitless datetime."""
+    # Unit should be "D" (days) due to last entry
+    data = [generic_data] * nrows + [long_datum]
+    expected = np.array(data, dtype=expected_dtype)
+    assert len(data) == nrows + 1
+    assert len(data) == len(expected)
+
+    # file-like path
+    txt = StringIO("\n".join(data))
+    a = np.loadtxt(txt, dtype=unitless_dtype)
+    assert len(a) == len(expected)
+    assert a.dtype == expected.dtype
+    assert_equal(a, expected)
+
+    # file-obj path
+    fd, fname = mkstemp()
+    os.close(fd)
+    with open(fname, "w") as fh:
+        fh.write("\n".join(data) + "\n")
+    # loading the full file...
+    a = np.loadtxt(fname, dtype=unitless_dtype)
+    assert len(a) == len(expected)
+    assert a.dtype == expected.dtype
+    assert_equal(a, expected)
+    # loading half of the file...
+    a = np.loadtxt(fname, dtype=unitless_dtype, max_rows=int(nrows / 2))
+    os.remove(fname)
+    assert len(a) == int(nrows / 2)
+    assert_equal(a, expected[:int(nrows / 2)])
+
+
+def test_str_dtype_unit_discovery_with_converter():
+    data = ["spam-a-lot"] * 60000 + ["XXXtis_but_a_scratch"]
+    expected = np.array(
+        ["spam-a-lot"] * 60000 + ["tis_but_a_scratch"], dtype="U17"
+    )
+    conv = lambda s: s.removeprefix("XXX")
+
+    # file-like path
+    txt = StringIO("\n".join(data))
+    a = np.loadtxt(txt, dtype="U", converters=conv)
+    assert a.dtype == expected.dtype
+    assert_equal(a, expected)
+
+    # file-obj path
+    fd, fname = mkstemp()
+    os.close(fd)
+    with open(fname, "w") as fh:
+        fh.write("\n".join(data))
+    a = np.loadtxt(fname, dtype="U", converters=conv)
+    os.remove(fname)
+    assert a.dtype == expected.dtype
+    assert_equal(a, expected)
+
+
+@pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8),
+                    reason="PyPy bug in error formatting")
+def test_control_character_empty():
+    with pytest.raises(TypeError, match="Text reading control character must"):
+        np.loadtxt(StringIO("1 2 3"), delimiter="")
+    with pytest.raises(TypeError, match="Text reading control character must"):
+        np.loadtxt(StringIO("1 2 3"), quotechar="")
+    with pytest.raises(ValueError, match="comments cannot be an empty string"):
+        np.loadtxt(StringIO("1 2 3"), comments="")
+    with pytest.raises(ValueError, match="comments cannot be an empty string"):
+        np.loadtxt(StringIO("1 2 3"), comments=["#", ""])
+
+
+def test_control_characters_as_bytes():
+    """Byte control characters (comments, delimiter) are supported."""
+    a = np.loadtxt(StringIO("#header\n1,2,3"), comments=b"#", delimiter=b",")
+    assert_equal(a, [1, 2, 3])
+
+
+@pytest.mark.filterwarnings('ignore::UserWarning')
+def test_field_growing_cases():
+    # Test empty field appending/growing (each field still takes 1 character)
+    # to see if the final field appending does not create issues.
+    res = np.loadtxt([""], delimiter=",", dtype=bytes)
+    assert len(res) == 0
+
+    for i in range(1, 1024):
+        res = np.loadtxt(["," * i], delimiter=",", dtype=bytes, max_rows=10)
+        assert len(res) == i + 1
+
+@pytest.mark.parametrize("nmax", (10000, 50000, 55000, 60000))
+def test_maxrows_exceeding_chunksize(nmax):
+    # tries to read all of the file,
+    # or less, equal, greater than _loadtxt_chunksize
+    file_length = 60000
+
+    # file-like path
+    data = ["a 0.5 1"] * file_length
+    txt = StringIO("\n".join(data))
+    res = np.loadtxt(txt, dtype=str, delimiter=" ", max_rows=nmax)
+    assert len(res) == nmax
+
+    # file-obj path
+    fd, fname = mkstemp()
+    os.close(fd)
+    with open(fname, "w") as fh:
+        fh.write("\n".join(data))
+    res = np.loadtxt(fname, dtype=str, delimiter=" ", max_rows=nmax)
+    os.remove(fname)
+    assert len(res) == nmax
+
+@pytest.mark.parametrize("nskip", (0, 10000, 12345, 50000, 67891, 100000))
+def test_skiprow_exceeding_maxrows_exceeding_chunksize(tmpdir, nskip):
+    # tries to read a file in chunks by skipping a variable amount of lines,
+    # less, equal, greater than max_rows
+    file_length = 110000
+    data = "\n".join(f"{i} a 0.5 1" for i in range(1, file_length + 1))
+    expected_length = min(60000, file_length - nskip)
+    expected = np.arange(nskip + 1, nskip + 1 + expected_length).astype(str)
+
+    # file-like path
+    txt = StringIO(data)
+    res = np.loadtxt(txt, dtype='str', delimiter=" ", skiprows=nskip, max_rows=60000)
+    assert len(res) == expected_length
+    # are the right lines read in res?
+    assert_array_equal(expected, res[:, 0])
+
+    # file-obj path
+    tmp_file = tmpdir / "test_data.txt"
+    tmp_file.write(data)
+    fname = str(tmp_file)
+    res = np.loadtxt(fname, dtype='str', delimiter=" ", skiprows=nskip, max_rows=60000)
+    assert len(res) == expected_length
+    # are the right lines read in res?
+    assert_array_equal(expected, res[:, 0])
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_mixins.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_mixins.py
new file mode 100644
index 0000000000000000000000000000000000000000..3d61a8853f16636e6e2578453b793852b2d40ae7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_mixins.py
@@ -0,0 +1,215 @@
+import numbers
+import operator
+
+import numpy as np
+from numpy.testing import assert_, assert_equal, assert_raises
+
+# NOTE: This class should be kept as an exact copy of the example from the
+# docstring for NDArrayOperatorsMixin.
+
+class ArrayLike(np.lib.mixins.NDArrayOperatorsMixin):
+    def __init__(self, value):
+        self.value = np.asarray(value)
+
+    # One might also consider adding the built-in list type to this
+    # list, to support operations like np.add(array_like, list)
+    _HANDLED_TYPES = (np.ndarray, numbers.Number)
+
+    def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+        out = kwargs.get('out', ())
+        for x in inputs + out:
+            # Only support operations with instances of _HANDLED_TYPES.
+            # Use ArrayLike instead of type(self) for isinstance to
+            # allow subclasses that don't override __array_ufunc__ to
+            # handle ArrayLike objects.
+            if not isinstance(x, self._HANDLED_TYPES + (ArrayLike,)):
+                return NotImplemented
+
+        # Defer to the implementation of the ufunc on unwrapped values.
+        inputs = tuple(x.value if isinstance(x, ArrayLike) else x
+                       for x in inputs)
+        if out:
+            kwargs['out'] = tuple(
+                x.value if isinstance(x, ArrayLike) else x
+                for x in out)
+        result = getattr(ufunc, method)(*inputs, **kwargs)
+
+        if type(result) is tuple:
+            # multiple return values
+            return tuple(type(self)(x) for x in result)
+        elif method == 'at':
+            # no return value
+            return None
+        else:
+            # one return value
+            return type(self)(result)
+
+    def __repr__(self):
+        return f'{type(self).__name__}({self.value!r})'
+
+
+def wrap_array_like(result):
+    if type(result) is tuple:
+        return tuple(ArrayLike(r) for r in result)
+    else:
+        return ArrayLike(result)
+
+
+def _assert_equal_type_and_value(result, expected, err_msg=None):
+    assert_equal(type(result), type(expected), err_msg=err_msg)
+    if isinstance(result, tuple):
+        assert_equal(len(result), len(expected), err_msg=err_msg)
+        for result_item, expected_item in zip(result, expected):
+            _assert_equal_type_and_value(result_item, expected_item, err_msg)
+    else:
+        assert_equal(result.value, expected.value, err_msg=err_msg)
+        assert_equal(getattr(result.value, 'dtype', None),
+                     getattr(expected.value, 'dtype', None), err_msg=err_msg)
+
+
+_ALL_BINARY_OPERATORS = [
+    operator.lt,
+    operator.le,
+    operator.eq,
+    operator.ne,
+    operator.gt,
+    operator.ge,
+    operator.add,
+    operator.sub,
+    operator.mul,
+    operator.truediv,
+    operator.floordiv,
+    operator.mod,
+    divmod,
+    pow,
+    operator.lshift,
+    operator.rshift,
+    operator.and_,
+    operator.xor,
+    operator.or_,
+]
+
+
+class TestNDArrayOperatorsMixin:
+
+    def test_array_like_add(self):
+
+        def check(result):
+            _assert_equal_type_and_value(result, ArrayLike(0))
+
+        check(ArrayLike(0) + 0)
+        check(0 + ArrayLike(0))
+
+        check(ArrayLike(0) + np.array(0))
+        check(np.array(0) + ArrayLike(0))
+
+        check(ArrayLike(np.array(0)) + 0)
+        check(0 + ArrayLike(np.array(0)))
+
+        check(ArrayLike(np.array(0)) + np.array(0))
+        check(np.array(0) + ArrayLike(np.array(0)))
+
+    def test_inplace(self):
+        array_like = ArrayLike(np.array([0]))
+        array_like += 1
+        _assert_equal_type_and_value(array_like, ArrayLike(np.array([1])))
+
+        array = np.array([0])
+        array += ArrayLike(1)
+        _assert_equal_type_and_value(array, ArrayLike(np.array([1])))
+
+    def test_opt_out(self):
+
+        class OptOut:
+            """Object that opts out of __array_ufunc__."""
+            __array_ufunc__ = None
+
+            def __add__(self, other):
+                return self
+
+            def __radd__(self, other):
+                return self
+
+        array_like = ArrayLike(1)
+        opt_out = OptOut()
+
+        # supported operations
+        assert_(array_like + opt_out is opt_out)
+        assert_(opt_out + array_like is opt_out)
+
+        # not supported
+        with assert_raises(TypeError):
+            # don't use the Python default, array_like = array_like + opt_out
+            array_like += opt_out
+        with assert_raises(TypeError):
+            array_like - opt_out
+        with assert_raises(TypeError):
+            opt_out - array_like
+
+    def test_subclass(self):
+
+        class SubArrayLike(ArrayLike):
+            """Should take precedence over ArrayLike."""
+
+        x = ArrayLike(0)
+        y = SubArrayLike(1)
+        _assert_equal_type_and_value(x + y, y)
+        _assert_equal_type_and_value(y + x, y)
+
+    def test_object(self):
+        x = ArrayLike(0)
+        obj = object()
+        with assert_raises(TypeError):
+            x + obj
+        with assert_raises(TypeError):
+            obj + x
+        with assert_raises(TypeError):
+            x += obj
+
+    def test_unary_methods(self):
+        array = np.array([-1, 0, 1, 2])
+        array_like = ArrayLike(array)
+        for op in [operator.neg,
+                   operator.pos,
+                   abs,
+                   operator.invert]:
+            _assert_equal_type_and_value(op(array_like), ArrayLike(op(array)))
+
+    def test_forward_binary_methods(self):
+        array = np.array([-1, 0, 1, 2])
+        array_like = ArrayLike(array)
+        for op in _ALL_BINARY_OPERATORS:
+            expected = wrap_array_like(op(array, 1))
+            actual = op(array_like, 1)
+            err_msg = f'failed for operator {op}'
+            _assert_equal_type_and_value(expected, actual, err_msg=err_msg)
+
+    def test_reflected_binary_methods(self):
+        for op in _ALL_BINARY_OPERATORS:
+            expected = wrap_array_like(op(2, 1))
+            actual = op(2, ArrayLike(1))
+            err_msg = f'failed for operator {op}'
+            _assert_equal_type_and_value(expected, actual, err_msg=err_msg)
+
+    def test_matmul(self):
+        array = np.array([1, 2], dtype=np.float64)
+        array_like = ArrayLike(array)
+        expected = ArrayLike(np.float64(5))
+        _assert_equal_type_and_value(expected, np.matmul(array_like, array))
+        _assert_equal_type_and_value(
+            expected, operator.matmul(array_like, array))
+        _assert_equal_type_and_value(
+            expected, operator.matmul(array, array_like))
+
+    def test_ufunc_at(self):
+        array = ArrayLike(np.array([1, 2, 3, 4]))
+        assert_(np.negative.at(array, np.array([0, 1])) is None)
+        _assert_equal_type_and_value(array, ArrayLike([-1, -2, 3, 4]))
+
+    def test_ufunc_two_outputs(self):
+        mantissa, exponent = np.frexp(2 ** -3)
+        expected = (ArrayLike(mantissa), ArrayLike(exponent))
+        _assert_equal_type_and_value(
+            np.frexp(ArrayLike(2 ** -3)), expected)
+        _assert_equal_type_and_value(
+            np.frexp(ArrayLike(np.array(2 ** -3))), expected)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_nanfunctions.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_nanfunctions.py
new file mode 100644
index 0000000000000000000000000000000000000000..ed281ccd2247b543bfcaf5315a2c44ea78653406
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_nanfunctions.py
@@ -0,0 +1,1438 @@
+import inspect
+import warnings
+from functools import partial
+
+import pytest
+
+import numpy as np
+from numpy._core.numeric import normalize_axis_tuple
+from numpy.exceptions import AxisError, ComplexWarning
+from numpy.lib._nanfunctions_impl import _nan_mask, _replace_nan
+from numpy.testing import (
+    assert_,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+# Test data
+_ndat = np.array([[0.6244, np.nan, 0.2692, 0.0116, np.nan, 0.1170],
+                  [0.5351, -0.9403, np.nan, 0.2100, 0.4759, 0.2833],
+                  [np.nan, np.nan, np.nan, 0.1042, np.nan, -0.5954],
+                  [0.1610, np.nan, np.nan, 0.1859, 0.3146, np.nan]])
+
+
+# Rows of _ndat with nans removed
+_rdat = [np.array([0.6244, 0.2692, 0.0116, 0.1170]),
+         np.array([0.5351, -0.9403, 0.2100, 0.4759, 0.2833]),
+         np.array([0.1042, -0.5954]),
+         np.array([0.1610, 0.1859, 0.3146])]
+
+# Rows of _ndat with nans converted to ones
+_ndat_ones = np.array([[0.6244, 1.0, 0.2692, 0.0116, 1.0, 0.1170],
+                       [0.5351, -0.9403, 1.0, 0.2100, 0.4759, 0.2833],
+                       [1.0, 1.0, 1.0, 0.1042, 1.0, -0.5954],
+                       [0.1610, 1.0, 1.0, 0.1859, 0.3146, 1.0]])
+
+# Rows of _ndat with nans converted to zeros
+_ndat_zeros = np.array([[0.6244, 0.0, 0.2692, 0.0116, 0.0, 0.1170],
+                        [0.5351, -0.9403, 0.0, 0.2100, 0.4759, 0.2833],
+                        [0.0, 0.0, 0.0, 0.1042, 0.0, -0.5954],
+                        [0.1610, 0.0, 0.0, 0.1859, 0.3146, 0.0]])
+
+
+class TestSignatureMatch:
+    NANFUNCS = {
+        np.nanmin: np.amin,
+        np.nanmax: np.amax,
+        np.nanargmin: np.argmin,
+        np.nanargmax: np.argmax,
+        np.nansum: np.sum,
+        np.nanprod: np.prod,
+        np.nancumsum: np.cumsum,
+        np.nancumprod: np.cumprod,
+        np.nanmean: np.mean,
+        np.nanmedian: np.median,
+        np.nanpercentile: np.percentile,
+        np.nanquantile: np.quantile,
+        np.nanvar: np.var,
+        np.nanstd: np.std,
+    }
+    IDS = [k.__name__ for k in NANFUNCS]
+
+    @staticmethod
+    def get_signature(func, default="..."):
+        """Construct a signature and replace all default parameter-values."""
+        prm_list = []
+        signature = inspect.signature(func)
+        for prm in signature.parameters.values():
+            if prm.default is inspect.Parameter.empty:
+                prm_list.append(prm)
+            else:
+                prm_list.append(prm.replace(default=default))
+        return inspect.Signature(prm_list)
+
+    @pytest.mark.parametrize("nan_func,func", NANFUNCS.items(), ids=IDS)
+    def test_signature_match(self, nan_func, func):
+        # Ignore the default parameter-values as they can sometimes differ
+        # between the two functions (*e.g.* one has `False` while the other
+        # has `np._NoValue`)
+        signature = self.get_signature(func)
+        nan_signature = self.get_signature(nan_func)
+        np.testing.assert_equal(signature, nan_signature)
+
+    def test_exhaustiveness(self):
+        """Validate that all nan functions are actually tested."""
+        np.testing.assert_equal(
+            set(self.IDS), set(np.lib._nanfunctions_impl.__all__)
+        )
+
+
+class TestNanFunctions_MinMax:
+
+    nanfuncs = [np.nanmin, np.nanmax]
+    stdfuncs = [np.min, np.max]
+
+    def test_mutation(self):
+        # Check that passed array is not modified.
+        ndat = _ndat.copy()
+        for f in self.nanfuncs:
+            f(ndat)
+            assert_equal(ndat, _ndat)
+
+    def test_keepdims(self):
+        mat = np.eye(3)
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            for axis in [None, 0, 1]:
+                tgt = rf(mat, axis=axis, keepdims=True)
+                res = nf(mat, axis=axis, keepdims=True)
+                assert_(res.ndim == tgt.ndim)
+
+    def test_out(self):
+        mat = np.eye(3)
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            resout = np.zeros(3)
+            tgt = rf(mat, axis=1)
+            res = nf(mat, axis=1, out=resout)
+            assert_almost_equal(res, resout)
+            assert_almost_equal(res, tgt)
+
+    def test_dtype_from_input(self):
+        codes = 'efdgFDG'
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            for c in codes:
+                mat = np.eye(3, dtype=c)
+                tgt = rf(mat, axis=1).dtype.type
+                res = nf(mat, axis=1).dtype.type
+                assert_(res is tgt)
+                # scalar case
+                tgt = rf(mat, axis=None).dtype.type
+                res = nf(mat, axis=None).dtype.type
+                assert_(res is tgt)
+
+    def test_result_values(self):
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            tgt = [rf(d) for d in _rdat]
+            res = nf(_ndat, axis=1)
+            assert_almost_equal(res, tgt)
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan),
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        match = "All-NaN slice encountered"
+        for func in self.nanfuncs:
+            with pytest.warns(RuntimeWarning, match=match):
+                out = func(array, axis=axis)
+            assert np.isnan(out).all()
+            assert out.dtype == array.dtype
+
+    def test_masked(self):
+        mat = np.ma.fix_invalid(_ndat)
+        msk = mat._mask.copy()
+        for f in [np.nanmin]:
+            res = f(mat, axis=1)
+            tgt = f(_ndat, axis=1)
+            assert_equal(res, tgt)
+            assert_equal(mat._mask, msk)
+            assert_(not np.isinf(mat).any())
+
+    def test_scalar(self):
+        for f in self.nanfuncs:
+            assert_(f(0.) == 0.)
+
+    def test_subclass(self):
+        class MyNDArray(np.ndarray):
+            pass
+
+        # Check that it works and that type and
+        # shape are preserved
+        mine = np.eye(3).view(MyNDArray)
+        for f in self.nanfuncs:
+            res = f(mine, axis=0)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == (3,))
+            res = f(mine, axis=1)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == (3,))
+            res = f(mine)
+            assert_(res.shape == ())
+
+        # check that rows of nan are dealt with for subclasses (#4628)
+        mine[1] = np.nan
+        for f in self.nanfuncs:
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                res = f(mine, axis=0)
+                assert_(isinstance(res, MyNDArray))
+                assert_(not np.any(np.isnan(res)))
+                assert_(len(w) == 0)
+
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                res = f(mine, axis=1)
+                assert_(isinstance(res, MyNDArray))
+                assert_(np.isnan(res[1]) and not np.isnan(res[0])
+                        and not np.isnan(res[2]))
+                assert_(len(w) == 1, 'no warning raised')
+                assert_(issubclass(w[0].category, RuntimeWarning))
+
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                res = f(mine)
+                assert_(res.shape == ())
+                assert_(res != np.nan)
+                assert_(len(w) == 0)
+
+    def test_object_array(self):
+        arr = np.array([[1.0, 2.0], [np.nan, 4.0], [np.nan, np.nan]], dtype=object)
+        assert_equal(np.nanmin(arr), 1.0)
+        assert_equal(np.nanmin(arr, axis=0), [1.0, 2.0])
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter('always')
+            # assert_equal does not work on object arrays of nan
+            assert_equal(list(np.nanmin(arr, axis=1)), [1.0, 4.0, np.nan])
+            assert_(len(w) == 1, 'no warning raised')
+            assert_(issubclass(w[0].category, RuntimeWarning))
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_initial(self, dtype):
+        class MyNDArray(np.ndarray):
+            pass
+
+        ar = np.arange(9).astype(dtype)
+        ar[:5] = np.nan
+
+        for f in self.nanfuncs:
+            initial = 100 if f is np.nanmax else 0
+
+            ret1 = f(ar, initial=initial)
+            assert ret1.dtype == dtype
+            assert ret1 == initial
+
+            ret2 = f(ar.view(MyNDArray), initial=initial)
+            assert ret2.dtype == dtype
+            assert ret2 == initial
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_where(self, dtype):
+        class MyNDArray(np.ndarray):
+            pass
+
+        ar = np.arange(9).reshape(3, 3).astype(dtype)
+        ar[0, :] = np.nan
+        where = np.ones_like(ar, dtype=np.bool)
+        where[:, 0] = False
+
+        for f in self.nanfuncs:
+            reference = 4 if f is np.nanmin else 8
+
+            ret1 = f(ar, where=where, initial=5)
+            assert ret1.dtype == dtype
+            assert ret1 == reference
+
+            ret2 = f(ar.view(MyNDArray), where=where, initial=5)
+            assert ret2.dtype == dtype
+            assert ret2 == reference
+
+
+class TestNanFunctions_ArgminArgmax:
+
+    nanfuncs = [np.nanargmin, np.nanargmax]
+
+    def test_mutation(self):
+        # Check that passed array is not modified.
+        ndat = _ndat.copy()
+        for f in self.nanfuncs:
+            f(ndat)
+            assert_equal(ndat, _ndat)
+
+    def test_result_values(self):
+        for f, fcmp in zip(self.nanfuncs, [np.greater, np.less]):
+            for row in _ndat:
+                with warnings.catch_warnings():
+                    warnings.filterwarnings(
+                        'ignore', "invalid value encountered in", RuntimeWarning)
+                    ind = f(row)
+                    val = row[ind]
+                    # comparing with NaN is tricky as the result
+                    # is always false except for NaN != NaN
+                    assert_(not np.isnan(val))
+                    assert_(not fcmp(val, row).any())
+                    assert_(not np.equal(val, row[:ind]).any())
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan),
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        for func in self.nanfuncs:
+            with pytest.raises(ValueError, match="All-NaN slice encountered"):
+                func(array, axis=axis)
+
+    def test_empty(self):
+        mat = np.zeros((0, 3))
+        for f in self.nanfuncs:
+            for axis in [0, None]:
+                assert_raises_regex(
+                        ValueError,
+                        "attempt to get argm.. of an empty sequence",
+                        f, mat, axis=axis)
+            for axis in [1]:
+                res = f(mat, axis=axis)
+                assert_equal(res, np.zeros(0))
+
+    def test_scalar(self):
+        for f in self.nanfuncs:
+            assert_(f(0.) == 0.)
+
+    def test_subclass(self):
+        class MyNDArray(np.ndarray):
+            pass
+
+        # Check that it works and that type and
+        # shape are preserved
+        mine = np.eye(3).view(MyNDArray)
+        for f in self.nanfuncs:
+            res = f(mine, axis=0)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == (3,))
+            res = f(mine, axis=1)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == (3,))
+            res = f(mine)
+            assert_(res.shape == ())
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_keepdims(self, dtype):
+        ar = np.arange(9).astype(dtype)
+        ar[:5] = np.nan
+
+        for f in self.nanfuncs:
+            reference = 5 if f is np.nanargmin else 8
+            ret = f(ar, keepdims=True)
+            assert ret.ndim == ar.ndim
+            assert ret == reference
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_out(self, dtype):
+        ar = np.arange(9).astype(dtype)
+        ar[:5] = np.nan
+
+        for f in self.nanfuncs:
+            out = np.zeros((), dtype=np.intp)
+            reference = 5 if f is np.nanargmin else 8
+            ret = f(ar, out=out)
+            assert ret is out
+            assert ret == reference
+
+
+_TEST_ARRAYS = {
+    "0d": np.array(5),
+    "1d": np.array([127, 39, 93, 87, 46])
+}
+for _v in _TEST_ARRAYS.values():
+    _v.setflags(write=False)
+
+
+@pytest.mark.parametrize(
+    "dtype",
+    np.typecodes["AllInteger"] + np.typecodes["AllFloat"] + "O",
+)
+@pytest.mark.parametrize("mat", _TEST_ARRAYS.values(), ids=_TEST_ARRAYS.keys())
+class TestNanFunctions_NumberTypes:
+    nanfuncs = {
+        np.nanmin: np.min,
+        np.nanmax: np.max,
+        np.nanargmin: np.argmin,
+        np.nanargmax: np.argmax,
+        np.nansum: np.sum,
+        np.nanprod: np.prod,
+        np.nancumsum: np.cumsum,
+        np.nancumprod: np.cumprod,
+        np.nanmean: np.mean,
+        np.nanmedian: np.median,
+        np.nanvar: np.var,
+        np.nanstd: np.std,
+    }
+    nanfunc_ids = [i.__name__ for i in nanfuncs]
+
+    @pytest.mark.parametrize("nanfunc,func", nanfuncs.items(), ids=nanfunc_ids)
+    @np.errstate(over="ignore")
+    def test_nanfunc(self, mat, dtype, nanfunc, func):
+        mat = mat.astype(dtype)
+        tgt = func(mat)
+        out = nanfunc(mat)
+
+        assert_almost_equal(out, tgt)
+        if dtype == "O":
+            assert type(out) is type(tgt)
+        else:
+            assert out.dtype == tgt.dtype
+
+    @pytest.mark.parametrize(
+        "nanfunc,func",
+        [(np.nanquantile, np.quantile), (np.nanpercentile, np.percentile)],
+        ids=["nanquantile", "nanpercentile"],
+    )
+    def test_nanfunc_q(self, mat, dtype, nanfunc, func):
+        mat = mat.astype(dtype)
+        if mat.dtype.kind == "c":
+            assert_raises(TypeError, func, mat, q=1)
+            assert_raises(TypeError, nanfunc, mat, q=1)
+
+        else:
+            tgt = func(mat, q=1)
+            out = nanfunc(mat, q=1)
+
+            assert_almost_equal(out, tgt)
+
+            if dtype == "O":
+                assert type(out) is type(tgt)
+            else:
+                assert out.dtype == tgt.dtype
+
+    @pytest.mark.parametrize(
+        "nanfunc,func",
+        [(np.nanvar, np.var), (np.nanstd, np.std)],
+        ids=["nanvar", "nanstd"],
+    )
+    def test_nanfunc_ddof(self, mat, dtype, nanfunc, func):
+        mat = mat.astype(dtype)
+        tgt = func(mat, ddof=0.5)
+        out = nanfunc(mat, ddof=0.5)
+
+        assert_almost_equal(out, tgt)
+        if dtype == "O":
+            assert type(out) is type(tgt)
+        else:
+            assert out.dtype == tgt.dtype
+
+    @pytest.mark.parametrize(
+        "nanfunc", [np.nanvar, np.nanstd]
+    )
+    def test_nanfunc_correction(self, mat, dtype, nanfunc):
+        mat = mat.astype(dtype)
+        assert_almost_equal(
+            nanfunc(mat, correction=0.5), nanfunc(mat, ddof=0.5)
+        )
+
+        err_msg = "ddof and correction can't be provided simultaneously."
+        with assert_raises_regex(ValueError, err_msg):
+            nanfunc(mat, ddof=0.5, correction=0.5)
+
+        with assert_raises_regex(ValueError, err_msg):
+            nanfunc(mat, ddof=1, correction=0)
+
+
+class SharedNanFunctionsTestsMixin:
+    def test_mutation(self):
+        # Check that passed array is not modified.
+        ndat = _ndat.copy()
+        for f in self.nanfuncs:
+            f(ndat)
+            assert_equal(ndat, _ndat)
+
+    def test_keepdims(self):
+        mat = np.eye(3)
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            for axis in [None, 0, 1]:
+                tgt = rf(mat, axis=axis, keepdims=True)
+                res = nf(mat, axis=axis, keepdims=True)
+                assert_(res.ndim == tgt.ndim)
+
+    def test_out(self):
+        mat = np.eye(3)
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            resout = np.zeros(3)
+            tgt = rf(mat, axis=1)
+            res = nf(mat, axis=1, out=resout)
+            assert_almost_equal(res, resout)
+            assert_almost_equal(res, tgt)
+
+    def test_dtype_from_dtype(self):
+        mat = np.eye(3)
+        codes = 'efdgFDG'
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            for c in codes:
+                with warnings.catch_warnings():
+                    if nf in {np.nanstd, np.nanvar} and c in 'FDG':
+                        # Giving the warning is a small bug, see gh-8000
+                        warnings.simplefilter('ignore', ComplexWarning)
+                    tgt = rf(mat, dtype=np.dtype(c), axis=1).dtype.type
+                    res = nf(mat, dtype=np.dtype(c), axis=1).dtype.type
+                    assert_(res is tgt)
+                    # scalar case
+                    tgt = rf(mat, dtype=np.dtype(c), axis=None).dtype.type
+                    res = nf(mat, dtype=np.dtype(c), axis=None).dtype.type
+                    assert_(res is tgt)
+
+    def test_dtype_from_char(self):
+        mat = np.eye(3)
+        codes = 'efdgFDG'
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            for c in codes:
+                with warnings.catch_warnings():
+                    if nf in {np.nanstd, np.nanvar} and c in 'FDG':
+                        # Giving the warning is a small bug, see gh-8000
+                        warnings.simplefilter('ignore', ComplexWarning)
+                    tgt = rf(mat, dtype=c, axis=1).dtype.type
+                    res = nf(mat, dtype=c, axis=1).dtype.type
+                    assert_(res is tgt)
+                    # scalar case
+                    tgt = rf(mat, dtype=c, axis=None).dtype.type
+                    res = nf(mat, dtype=c, axis=None).dtype.type
+                    assert_(res is tgt)
+
+    def test_dtype_from_input(self):
+        codes = 'efdgFDG'
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            for c in codes:
+                mat = np.eye(3, dtype=c)
+                tgt = rf(mat, axis=1).dtype.type
+                res = nf(mat, axis=1).dtype.type
+                assert_(res is tgt, f"res {res}, tgt {tgt}")
+                # scalar case
+                tgt = rf(mat, axis=None).dtype.type
+                res = nf(mat, axis=None).dtype.type
+                assert_(res is tgt)
+
+    def test_result_values(self):
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            tgt = [rf(d) for d in _rdat]
+            res = nf(_ndat, axis=1)
+            assert_almost_equal(res, tgt)
+
+    def test_scalar(self):
+        for f in self.nanfuncs:
+            assert_(f(0.) == 0.)
+
+    def test_subclass(self):
+        class MyNDArray(np.ndarray):
+            pass
+
+        # Check that it works and that type and
+        # shape are preserved
+        array = np.eye(3)
+        mine = array.view(MyNDArray)
+        for f in self.nanfuncs:
+            expected_shape = f(array, axis=0).shape
+            res = f(mine, axis=0)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == expected_shape)
+            expected_shape = f(array, axis=1).shape
+            res = f(mine, axis=1)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == expected_shape)
+            expected_shape = f(array).shape
+            res = f(mine)
+            assert_(isinstance(res, MyNDArray))
+            assert_(res.shape == expected_shape)
+
+
+class TestNanFunctions_SumProd(SharedNanFunctionsTestsMixin):
+
+    nanfuncs = [np.nansum, np.nanprod]
+    stdfuncs = [np.sum, np.prod]
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan),
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        for func, identity in zip(self.nanfuncs, [0, 1]):
+            out = func(array, axis=axis)
+            assert np.all(out == identity)
+            assert out.dtype == array.dtype
+
+    def test_empty(self):
+        for f, tgt_value in zip([np.nansum, np.nanprod], [0, 1]):
+            mat = np.zeros((0, 3))
+            tgt = [tgt_value] * 3
+            res = f(mat, axis=0)
+            assert_equal(res, tgt)
+            tgt = []
+            res = f(mat, axis=1)
+            assert_equal(res, tgt)
+            tgt = tgt_value
+            res = f(mat, axis=None)
+            assert_equal(res, tgt)
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_initial(self, dtype):
+        ar = np.arange(9).astype(dtype)
+        ar[:5] = np.nan
+
+        for f in self.nanfuncs:
+            reference = 28 if f is np.nansum else 3360
+            ret = f(ar, initial=2)
+            assert ret.dtype == dtype
+            assert ret == reference
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_where(self, dtype):
+        ar = np.arange(9).reshape(3, 3).astype(dtype)
+        ar[0, :] = np.nan
+        where = np.ones_like(ar, dtype=np.bool)
+        where[:, 0] = False
+
+        for f in self.nanfuncs:
+            reference = 26 if f is np.nansum else 2240
+            ret = f(ar, where=where, initial=2)
+            assert ret.dtype == dtype
+            assert ret == reference
+
+
+class TestNanFunctions_CumSumProd(SharedNanFunctionsTestsMixin):
+
+    nanfuncs = [np.nancumsum, np.nancumprod]
+    stdfuncs = [np.cumsum, np.cumprod]
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan)
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        for func, identity in zip(self.nanfuncs, [0, 1]):
+            out = func(array)
+            assert np.all(out == identity)
+            assert out.dtype == array.dtype
+
+    def test_empty(self):
+        for f, tgt_value in zip(self.nanfuncs, [0, 1]):
+            mat = np.zeros((0, 3))
+            tgt = tgt_value * np.ones((0, 3))
+            res = f(mat, axis=0)
+            assert_equal(res, tgt)
+            tgt = mat
+            res = f(mat, axis=1)
+            assert_equal(res, tgt)
+            tgt = np.zeros(0)
+            res = f(mat, axis=None)
+            assert_equal(res, tgt)
+
+    def test_keepdims(self):
+        for f, g in zip(self.nanfuncs, self.stdfuncs):
+            mat = np.eye(3)
+            for axis in [None, 0, 1]:
+                tgt = f(mat, axis=axis, out=None)
+                res = g(mat, axis=axis, out=None)
+                assert_(res.ndim == tgt.ndim)
+
+        for f in self.nanfuncs:
+            d = np.ones((3, 5, 7, 11))
+            # Randomly set some elements to NaN:
+            rs = np.random.RandomState(0)
+            d[rs.rand(*d.shape) < 0.5] = np.nan
+            res = f(d, axis=None)
+            assert_equal(res.shape, (1155,))
+            for axis in np.arange(4):
+                res = f(d, axis=axis)
+                assert_equal(res.shape, (3, 5, 7, 11))
+
+    def test_result_values(self):
+        for axis in (-2, -1, 0, 1, None):
+            tgt = np.cumprod(_ndat_ones, axis=axis)
+            res = np.nancumprod(_ndat, axis=axis)
+            assert_almost_equal(res, tgt)
+            tgt = np.cumsum(_ndat_zeros, axis=axis)
+            res = np.nancumsum(_ndat, axis=axis)
+            assert_almost_equal(res, tgt)
+
+    def test_out(self):
+        mat = np.eye(3)
+        for nf, rf in zip(self.nanfuncs, self.stdfuncs):
+            resout = np.eye(3)
+            for axis in (-2, -1, 0, 1):
+                tgt = rf(mat, axis=axis)
+                res = nf(mat, axis=axis, out=resout)
+                assert_almost_equal(res, resout)
+                assert_almost_equal(res, tgt)
+
+
+class TestNanFunctions_MeanVarStd(SharedNanFunctionsTestsMixin):
+
+    nanfuncs = [np.nanmean, np.nanvar, np.nanstd]
+    stdfuncs = [np.mean, np.var, np.std]
+
+    def test_dtype_error(self):
+        for f in self.nanfuncs:
+            for dtype in [np.bool, np.int_, np.object_]:
+                assert_raises(TypeError, f, _ndat, axis=1, dtype=dtype)
+
+    def test_out_dtype_error(self):
+        for f in self.nanfuncs:
+            for dtype in [np.bool, np.int_, np.object_]:
+                out = np.empty(_ndat.shape[0], dtype=dtype)
+                assert_raises(TypeError, f, _ndat, axis=1, out=out)
+
+    def test_ddof(self):
+        nanfuncs = [np.nanvar, np.nanstd]
+        stdfuncs = [np.var, np.std]
+        for nf, rf in zip(nanfuncs, stdfuncs):
+            for ddof in [0, 1]:
+                tgt = [rf(d, ddof=ddof) for d in _rdat]
+                res = nf(_ndat, axis=1, ddof=ddof)
+                assert_almost_equal(res, tgt)
+
+    def test_ddof_too_big(self):
+        nanfuncs = [np.nanvar, np.nanstd]
+        stdfuncs = [np.var, np.std]
+        dsize = [len(d) for d in _rdat]
+        for nf, rf in zip(nanfuncs, stdfuncs):
+            for ddof in range(5):
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter('always')
+                    warnings.simplefilter('ignore', ComplexWarning)
+                    tgt = [ddof >= d for d in dsize]
+                    res = nf(_ndat, axis=1, ddof=ddof)
+                    assert_equal(np.isnan(res), tgt)
+                if any(tgt):
+                    assert_(len(w) == 1)
+                else:
+                    assert_(len(w) == 0)
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan),
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        match = "(Degrees of freedom <= 0 for slice.)|(Mean of empty slice)"
+        for func in self.nanfuncs:
+            with pytest.warns(RuntimeWarning, match=match):
+                out = func(array, axis=axis)
+            assert np.isnan(out).all()
+
+            # `nanvar` and `nanstd` convert complex inputs to their
+            # corresponding floating dtype
+            if func is np.nanmean:
+                assert out.dtype == array.dtype
+            else:
+                assert out.dtype == np.abs(array).dtype
+
+    def test_empty(self):
+        mat = np.zeros((0, 3))
+        for f in self.nanfuncs:
+            for axis in [0, None]:
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter('always')
+                    assert_(np.isnan(f(mat, axis=axis)).all())
+                    assert_(len(w) == 1)
+                    assert_(issubclass(w[0].category, RuntimeWarning))
+            for axis in [1]:
+                with warnings.catch_warnings(record=True) as w:
+                    warnings.simplefilter('always')
+                    assert_equal(f(mat, axis=axis), np.zeros([]))
+                    assert_(len(w) == 0)
+
+    @pytest.mark.parametrize("dtype", np.typecodes["AllFloat"])
+    def test_where(self, dtype):
+        ar = np.arange(9).reshape(3, 3).astype(dtype)
+        ar[0, :] = np.nan
+        where = np.ones_like(ar, dtype=np.bool)
+        where[:, 0] = False
+
+        for f, f_std in zip(self.nanfuncs, self.stdfuncs):
+            reference = f_std(ar[where][2:])
+            dtype_reference = dtype if f is np.nanmean else ar.real.dtype
+
+            ret = f(ar, where=where)
+            assert ret.dtype == dtype_reference
+            np.testing.assert_allclose(ret, reference)
+
+    def test_nanstd_with_mean_keyword(self):
+        # Setting the seed to make the test reproducible
+        rng = np.random.RandomState(1234)
+        A = rng.randn(10, 20, 5) + 0.5
+        A[:, 5, :] = np.nan
+
+        mean_out = np.zeros((10, 1, 5))
+        std_out = np.zeros((10, 1, 5))
+
+        mean = np.nanmean(A,
+                       out=mean_out,
+                       axis=1,
+                       keepdims=True)
+
+        # The returned  object should be the object specified during calling
+        assert mean_out is mean
+
+        std = np.nanstd(A,
+                     out=std_out,
+                     axis=1,
+                     keepdims=True,
+                     mean=mean)
+
+        # The returned  object should be the object specified during calling
+        assert std_out is std
+
+        # Shape of returned mean and std should be same
+        assert std.shape == mean.shape
+        assert std.shape == (10, 1, 5)
+
+        # Output should be the same as from the individual algorithms
+        std_old = np.nanstd(A, axis=1, keepdims=True)
+
+        assert std_old.shape == mean.shape
+        assert_almost_equal(std, std_old)
+
+
+_TIME_UNITS = (
+    "Y", "M", "W", "D", "h", "m", "s", "ms", "us", "ns", "ps", "fs", "as"
+)
+
+# All `inexact` + `timdelta64` type codes
+_TYPE_CODES = list(np.typecodes["AllFloat"])
+_TYPE_CODES += [f"m8[{unit}]" for unit in _TIME_UNITS]
+
+
+class TestNanFunctions_Median:
+
+    def test_mutation(self):
+        # Check that passed array is not modified.
+        ndat = _ndat.copy()
+        np.nanmedian(ndat)
+        assert_equal(ndat, _ndat)
+
+    def test_keepdims(self):
+        mat = np.eye(3)
+        for axis in [None, 0, 1]:
+            tgt = np.median(mat, axis=axis, out=None, overwrite_input=False)
+            res = np.nanmedian(mat, axis=axis, out=None, overwrite_input=False)
+            assert_(res.ndim == tgt.ndim)
+
+        d = np.ones((3, 5, 7, 11))
+        # Randomly set some elements to NaN:
+        w = np.random.random((4, 200)) * np.array(d.shape)[:, None]
+        w = w.astype(np.intp)
+        d[tuple(w)] = np.nan
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            res = np.nanmedian(d, axis=None, keepdims=True)
+            assert_equal(res.shape, (1, 1, 1, 1))
+            res = np.nanmedian(d, axis=(0, 1), keepdims=True)
+            assert_equal(res.shape, (1, 1, 7, 11))
+            res = np.nanmedian(d, axis=(0, 3), keepdims=True)
+            assert_equal(res.shape, (1, 5, 7, 1))
+            res = np.nanmedian(d, axis=(1,), keepdims=True)
+            assert_equal(res.shape, (3, 1, 7, 11))
+            res = np.nanmedian(d, axis=(0, 1, 2, 3), keepdims=True)
+            assert_equal(res.shape, (1, 1, 1, 1))
+            res = np.nanmedian(d, axis=(0, 1, 3), keepdims=True)
+            assert_equal(res.shape, (1, 1, 7, 1))
+
+    @pytest.mark.parametrize(
+        argnames='axis',
+        argvalues=[
+            None,
+            1,
+            (1, ),
+            (0, 1),
+            (-3, -1),
+        ]
+    )
+    @pytest.mark.filterwarnings("ignore:All-NaN slice:RuntimeWarning")
+    def test_keepdims_out(self, axis):
+        d = np.ones((3, 5, 7, 11))
+        # Randomly set some elements to NaN:
+        w = np.random.random((4, 200)) * np.array(d.shape)[:, None]
+        w = w.astype(np.intp)
+        d[tuple(w)] = np.nan
+        if axis is None:
+            shape_out = (1,) * d.ndim
+        else:
+            axis_norm = normalize_axis_tuple(axis, d.ndim)
+            shape_out = tuple(
+                1 if i in axis_norm else d.shape[i] for i in range(d.ndim))
+        out = np.empty(shape_out)
+        result = np.nanmedian(d, axis=axis, keepdims=True, out=out)
+        assert result is out
+        assert_equal(result.shape, shape_out)
+
+    def test_out(self):
+        mat = np.random.rand(3, 3)
+        nan_mat = np.insert(mat, [0, 2], np.nan, axis=1)
+        resout = np.zeros(3)
+        tgt = np.median(mat, axis=1)
+        res = np.nanmedian(nan_mat, axis=1, out=resout)
+        assert_almost_equal(res, resout)
+        assert_almost_equal(res, tgt)
+        # 0-d output:
+        resout = np.zeros(())
+        tgt = np.median(mat, axis=None)
+        res = np.nanmedian(nan_mat, axis=None, out=resout)
+        assert_almost_equal(res, resout)
+        assert_almost_equal(res, tgt)
+        res = np.nanmedian(nan_mat, axis=(0, 1), out=resout)
+        assert_almost_equal(res, resout)
+        assert_almost_equal(res, tgt)
+
+    def test_small_large(self):
+        # test the small and large code paths, current cutoff 400 elements
+        for s in [5, 20, 51, 200, 1000]:
+            d = np.random.randn(4, s)
+            # Randomly set some elements to NaN:
+            w = np.random.randint(0, d.size, size=d.size // 5)
+            d.ravel()[w] = np.nan
+            d[:, 0] = 1.  # ensure at least one good value
+            # use normal median without nans to compare
+            tgt = []
+            for x in d:
+                nonan = np.compress(~np.isnan(x), x)
+                tgt.append(np.median(nonan, overwrite_input=True))
+
+            assert_array_equal(np.nanmedian(d, axis=-1), tgt)
+
+    def test_result_values(self):
+        tgt = [np.median(d) for d in _rdat]
+        res = np.nanmedian(_ndat, axis=1)
+        assert_almost_equal(res, tgt)
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", _TYPE_CODES)
+    def test_allnans(self, dtype, axis):
+        mat = np.full((3, 3), np.nan).astype(dtype)
+        with pytest.warns(RuntimeWarning) as r:
+            output = np.nanmedian(mat, axis=axis)
+            assert output.dtype == mat.dtype
+            assert np.isnan(output).all()
+
+            if axis is None:
+                assert_(len(r) == 1)
+            else:
+                assert_(len(r) == 3)
+
+            # Check scalar
+            scalar = np.array(np.nan).astype(dtype)[()]
+            output_scalar = np.nanmedian(scalar)
+            assert output_scalar.dtype == scalar.dtype
+            assert np.isnan(output_scalar)
+
+            if axis is None:
+                assert_(len(r) == 2)
+            else:
+                assert_(len(r) == 4)
+
+    def test_empty(self):
+        mat = np.zeros((0, 3))
+        for axis in [0, None]:
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                assert_(np.isnan(np.nanmedian(mat, axis=axis)).all())
+                assert_(len(w) == 1)
+                assert_(issubclass(w[0].category, RuntimeWarning))
+        for axis in [1]:
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                assert_equal(np.nanmedian(mat, axis=axis), np.zeros([]))
+                assert_(len(w) == 0)
+
+    def test_scalar(self):
+        assert_(np.nanmedian(0.) == 0.)
+
+    def test_extended_axis_invalid(self):
+        d = np.ones((3, 5, 7, 11))
+        assert_raises(AxisError, np.nanmedian, d, axis=-5)
+        assert_raises(AxisError, np.nanmedian, d, axis=(0, -5))
+        assert_raises(AxisError, np.nanmedian, d, axis=4)
+        assert_raises(AxisError, np.nanmedian, d, axis=(0, 4))
+        assert_raises(ValueError, np.nanmedian, d, axis=(1, 1))
+
+    def test_float_special(self):
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            for inf in [np.inf, -np.inf]:
+                a = np.array([[inf,  np.nan], [np.nan, np.nan]])
+                assert_equal(np.nanmedian(a, axis=0), [inf,  np.nan])
+                assert_equal(np.nanmedian(a, axis=1), [inf,  np.nan])
+                assert_equal(np.nanmedian(a), inf)
+
+                # minimum fill value check
+                a = np.array([[np.nan, np.nan, inf],
+                             [np.nan, np.nan, inf]])
+                assert_equal(np.nanmedian(a), inf)
+                assert_equal(np.nanmedian(a, axis=0), [np.nan, np.nan, inf])
+                assert_equal(np.nanmedian(a, axis=1), inf)
+
+                # no mask path
+                a = np.array([[inf, inf], [inf, inf]])
+                assert_equal(np.nanmedian(a, axis=1), inf)
+
+                a = np.array([[inf, 7, -inf, -9],
+                              [-10, np.nan, np.nan, 5],
+                              [4, np.nan, np.nan, inf]],
+                              dtype=np.float32)
+                if inf > 0:
+                    assert_equal(np.nanmedian(a, axis=0), [4., 7., -inf, 5.])
+                    assert_equal(np.nanmedian(a), 4.5)
+                else:
+                    assert_equal(np.nanmedian(a, axis=0), [-10., 7., -inf, -9.])
+                    assert_equal(np.nanmedian(a), -2.5)
+                assert_equal(np.nanmedian(a, axis=-1), [-1., -2.5, inf])
+
+                for i in range(10):
+                    for j in range(1, 10):
+                        a = np.array([([np.nan] * i) + ([inf] * j)] * 2)
+                        assert_equal(np.nanmedian(a), inf)
+                        assert_equal(np.nanmedian(a, axis=1), inf)
+                        assert_equal(np.nanmedian(a, axis=0),
+                                     ([np.nan] * i) + [inf] * j)
+
+                        a = np.array([([np.nan] * i) + ([-inf] * j)] * 2)
+                        assert_equal(np.nanmedian(a), -inf)
+                        assert_equal(np.nanmedian(a, axis=1), -inf)
+                        assert_equal(np.nanmedian(a, axis=0),
+                                     ([np.nan] * i) + [-inf] * j)
+
+
+class TestNanFunctions_Percentile:
+
+    def test_mutation(self):
+        # Check that passed array is not modified.
+        ndat = _ndat.copy()
+        np.nanpercentile(ndat, 30)
+        assert_equal(ndat, _ndat)
+
+    def test_keepdims(self):
+        mat = np.eye(3)
+        for axis in [None, 0, 1]:
+            tgt = np.percentile(mat, 70, axis=axis, out=None,
+                                overwrite_input=False)
+            res = np.nanpercentile(mat, 70, axis=axis, out=None,
+                                   overwrite_input=False)
+            assert_(res.ndim == tgt.ndim)
+
+        d = np.ones((3, 5, 7, 11))
+        # Randomly set some elements to NaN:
+        w = np.random.random((4, 200)) * np.array(d.shape)[:, None]
+        w = w.astype(np.intp)
+        d[tuple(w)] = np.nan
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            res = np.nanpercentile(d, 90, axis=None, keepdims=True)
+            assert_equal(res.shape, (1, 1, 1, 1))
+            res = np.nanpercentile(d, 90, axis=(0, 1), keepdims=True)
+            assert_equal(res.shape, (1, 1, 7, 11))
+            res = np.nanpercentile(d, 90, axis=(0, 3), keepdims=True)
+            assert_equal(res.shape, (1, 5, 7, 1))
+            res = np.nanpercentile(d, 90, axis=(1,), keepdims=True)
+            assert_equal(res.shape, (3, 1, 7, 11))
+            res = np.nanpercentile(d, 90, axis=(0, 1, 2, 3), keepdims=True)
+            assert_equal(res.shape, (1, 1, 1, 1))
+            res = np.nanpercentile(d, 90, axis=(0, 1, 3), keepdims=True)
+            assert_equal(res.shape, (1, 1, 7, 1))
+
+    @pytest.mark.parametrize('q', [7, [1, 7]])
+    @pytest.mark.parametrize(
+        argnames='axis',
+        argvalues=[
+            None,
+            1,
+            (1,),
+            (0, 1),
+            (-3, -1),
+        ]
+    )
+    @pytest.mark.filterwarnings("ignore:All-NaN slice:RuntimeWarning")
+    def test_keepdims_out(self, q, axis):
+        d = np.ones((3, 5, 7, 11))
+        # Randomly set some elements to NaN:
+        w = np.random.random((4, 200)) * np.array(d.shape)[:, None]
+        w = w.astype(np.intp)
+        d[tuple(w)] = np.nan
+        if axis is None:
+            shape_out = (1,) * d.ndim
+        else:
+            axis_norm = normalize_axis_tuple(axis, d.ndim)
+            shape_out = tuple(
+                1 if i in axis_norm else d.shape[i] for i in range(d.ndim))
+        shape_out = np.shape(q) + shape_out
+
+        out = np.empty(shape_out)
+        result = np.nanpercentile(d, q, axis=axis, keepdims=True, out=out)
+        assert result is out
+        assert_equal(result.shape, shape_out)
+
+    @pytest.mark.parametrize("weighted", [False, True])
+    def test_out(self, weighted):
+        mat = np.random.rand(3, 3)
+        nan_mat = np.insert(mat, [0, 2], np.nan, axis=1)
+        resout = np.zeros(3)
+        if weighted:
+            w_args = {"weights": np.ones_like(mat), "method": "inverted_cdf"}
+            nan_w_args = {
+                "weights": np.ones_like(nan_mat), "method": "inverted_cdf"
+            }
+        else:
+            w_args = {}
+            nan_w_args = {}
+        tgt = np.percentile(mat, 42, axis=1, **w_args)
+        res = np.nanpercentile(nan_mat, 42, axis=1, out=resout, **nan_w_args)
+        assert_almost_equal(res, resout)
+        assert_almost_equal(res, tgt)
+        # 0-d output:
+        resout = np.zeros(())
+        tgt = np.percentile(mat, 42, axis=None, **w_args)
+        res = np.nanpercentile(
+            nan_mat, 42, axis=None, out=resout, **nan_w_args
+        )
+        assert_almost_equal(res, resout)
+        assert_almost_equal(res, tgt)
+        res = np.nanpercentile(
+            nan_mat, 42, axis=(0, 1), out=resout, **nan_w_args
+        )
+        assert_almost_equal(res, resout)
+        assert_almost_equal(res, tgt)
+
+    def test_complex(self):
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='G')
+        assert_raises(TypeError, np.nanpercentile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='D')
+        assert_raises(TypeError, np.nanpercentile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='F')
+        assert_raises(TypeError, np.nanpercentile, arr_c, 0.5)
+
+    @pytest.mark.parametrize("weighted", [False, True])
+    @pytest.mark.parametrize("use_out", [False, True])
+    def test_result_values(self, weighted, use_out):
+        if weighted:
+            percentile = partial(np.percentile, method="inverted_cdf")
+            nanpercentile = partial(np.nanpercentile, method="inverted_cdf")
+
+            def gen_weights(d):
+                return np.ones_like(d)
+
+        else:
+            percentile = np.percentile
+            nanpercentile = np.nanpercentile
+
+            def gen_weights(d):
+                return None
+
+        tgt = [percentile(d, 28, weights=gen_weights(d)) for d in _rdat]
+        out = np.empty_like(tgt) if use_out else None
+        res = nanpercentile(_ndat, 28, axis=1,
+                            weights=gen_weights(_ndat), out=out)
+        assert_almost_equal(res, tgt)
+        # Transpose the array to fit the output convention of numpy.percentile
+        tgt = np.transpose([percentile(d, (28, 98), weights=gen_weights(d))
+                            for d in _rdat])
+        out = np.empty_like(tgt) if use_out else None
+        res = nanpercentile(_ndat, (28, 98), axis=1,
+                            weights=gen_weights(_ndat), out=out)
+        assert_almost_equal(res, tgt)
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["Float"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan),
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        with pytest.warns(RuntimeWarning, match="All-NaN slice encountered"):
+            out = np.nanpercentile(array, 60, axis=axis)
+        assert np.isnan(out).all()
+        assert out.dtype == array.dtype
+
+    def test_empty(self):
+        mat = np.zeros((0, 3))
+        for axis in [0, None]:
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                assert_(np.isnan(np.nanpercentile(mat, 40, axis=axis)).all())
+                assert_(len(w) == 1)
+                assert_(issubclass(w[0].category, RuntimeWarning))
+        for axis in [1]:
+            with warnings.catch_warnings(record=True) as w:
+                warnings.simplefilter('always')
+                assert_equal(np.nanpercentile(mat, 40, axis=axis), np.zeros([]))
+                assert_(len(w) == 0)
+
+    def test_scalar(self):
+        assert_equal(np.nanpercentile(0., 100), 0.)
+        a = np.arange(6)
+        r = np.nanpercentile(a, 50, axis=0)
+        assert_equal(r, 2.5)
+        assert_(np.isscalar(r))
+
+    def test_extended_axis_invalid(self):
+        d = np.ones((3, 5, 7, 11))
+        assert_raises(AxisError, np.nanpercentile, d, q=5, axis=-5)
+        assert_raises(AxisError, np.nanpercentile, d, q=5, axis=(0, -5))
+        assert_raises(AxisError, np.nanpercentile, d, q=5, axis=4)
+        assert_raises(AxisError, np.nanpercentile, d, q=5, axis=(0, 4))
+        assert_raises(ValueError, np.nanpercentile, d, q=5, axis=(1, 1))
+
+    def test_multiple_percentiles(self):
+        perc = [50, 100]
+        mat = np.ones((4, 3))
+        nan_mat = np.nan * mat
+        # For checking consistency in higher dimensional case
+        large_mat = np.ones((3, 4, 5))
+        large_mat[:, 0:2:4, :] = 0
+        large_mat[:, :, 3:] *= 2
+        for axis in [None, 0, 1]:
+            for keepdim in [False, True]:
+                with warnings.catch_warnings():
+                    warnings.filterwarnings(
+                        'ignore', "All-NaN slice encountered", RuntimeWarning)
+                    val = np.percentile(mat, perc, axis=axis, keepdims=keepdim)
+                    nan_val = np.nanpercentile(nan_mat, perc, axis=axis,
+                                               keepdims=keepdim)
+                    assert_equal(nan_val.shape, val.shape)
+
+                    val = np.percentile(large_mat, perc, axis=axis,
+                                        keepdims=keepdim)
+                    nan_val = np.nanpercentile(large_mat, perc, axis=axis,
+                                               keepdims=keepdim)
+                    assert_equal(nan_val, val)
+
+        megamat = np.ones((3, 4, 5, 6))
+        assert_equal(
+            np.nanpercentile(megamat, perc, axis=(1, 2)).shape, (2, 3, 6)
+        )
+
+    @pytest.mark.parametrize("nan_weight", [0, 1, 2, 3, 1e200])
+    def test_nan_value_with_weight(self, nan_weight):
+        x = [1, np.nan, 2, 3]
+        result = np.float64(2.0)
+        q_unweighted = np.nanpercentile(x, 50, method="inverted_cdf")
+        assert_equal(q_unweighted, result)
+
+        # The weight value at the nan position should not matter.
+        w = [1.0, nan_weight, 1.0, 1.0]
+        q_weighted = np.nanpercentile(x, 50, weights=w, method="inverted_cdf")
+        assert_equal(q_weighted, result)
+
+    @pytest.mark.parametrize("axis", [0, 1, 2])
+    def test_nan_value_with_weight_ndim(self, axis):
+        # Create a multi-dimensional array to test
+        np.random.seed(1)
+        x_no_nan = np.random.random(size=(100, 99, 2))
+        # Set some places to NaN (not particularly smart) so there is always
+        # some non-Nan.
+        x = x_no_nan.copy()
+        x[np.arange(99), np.arange(99), 0] = np.nan
+
+        p = np.array([[20., 50., 30], [70, 33, 80]])
+
+        # We just use ones as weights, but replace it with 0 or 1e200 at the
+        # NaN positions below.
+        weights = np.ones_like(x)
+
+        # For comparison use weighted normal percentile with nan weights at
+        # 0 (and no NaNs); not sure this is strictly identical but should be
+        # sufficiently so (if a percentile lies exactly on a 0 value).
+        weights[np.isnan(x)] = 0
+        p_expected = np.percentile(
+            x_no_nan, p, axis=axis, weights=weights, method="inverted_cdf")
+
+        p_unweighted = np.nanpercentile(
+            x, p, axis=axis, method="inverted_cdf")
+        # The normal and unweighted versions should be identical:
+        assert_equal(p_unweighted, p_expected)
+
+        weights[np.isnan(x)] = 1e200  # huge value, shouldn't matter
+        p_weighted = np.nanpercentile(
+            x, p, axis=axis, weights=weights, method="inverted_cdf")
+        assert_equal(p_weighted, p_expected)
+        # Also check with out passed:
+        out = np.empty_like(p_weighted)
+        res = np.nanpercentile(
+            x, p, axis=axis, weights=weights, out=out, method="inverted_cdf")
+
+        assert res is out
+        assert_equal(out, p_expected)
+
+
+class TestNanFunctions_Quantile:
+    # most of this is already tested by TestPercentile
+
+    @pytest.mark.parametrize("weighted", [False, True])
+    def test_regression(self, weighted):
+        ar = np.arange(24).reshape(2, 3, 4).astype(float)
+        ar[0][1] = np.nan
+        if weighted:
+            w_args = {"weights": np.ones_like(ar), "method": "inverted_cdf"}
+        else:
+            w_args = {}
+
+        assert_equal(np.nanquantile(ar, q=0.5, **w_args),
+                     np.nanpercentile(ar, q=50, **w_args))
+        assert_equal(np.nanquantile(ar, q=0.5, axis=0, **w_args),
+                     np.nanpercentile(ar, q=50, axis=0, **w_args))
+        assert_equal(np.nanquantile(ar, q=0.5, axis=1, **w_args),
+                     np.nanpercentile(ar, q=50, axis=1, **w_args))
+        assert_equal(np.nanquantile(ar, q=[0.5], axis=1, **w_args),
+                     np.nanpercentile(ar, q=[50], axis=1, **w_args))
+        assert_equal(np.nanquantile(ar, q=[0.25, 0.5, 0.75], axis=1, **w_args),
+                     np.nanpercentile(ar, q=[25, 50, 75], axis=1, **w_args))
+
+    def test_basic(self):
+        x = np.arange(8) * 0.5
+        assert_equal(np.nanquantile(x, 0), 0.)
+        assert_equal(np.nanquantile(x, 1), 3.5)
+        assert_equal(np.nanquantile(x, 0.5), 1.75)
+
+    def test_complex(self):
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='G')
+        assert_raises(TypeError, np.nanquantile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='D')
+        assert_raises(TypeError, np.nanquantile, arr_c, 0.5)
+        arr_c = np.array([0.5 + 3.0j, 2.1 + 0.5j, 1.6 + 2.3j], dtype='F')
+        assert_raises(TypeError, np.nanquantile, arr_c, 0.5)
+
+    def test_no_p_overwrite(self):
+        # this is worth retesting, because quantile does not make a copy
+        p0 = np.array([0, 0.75, 0.25, 0.5, 1.0])
+        p = p0.copy()
+        np.nanquantile(np.arange(100.), p, method="midpoint")
+        assert_array_equal(p, p0)
+
+        p0 = p0.tolist()
+        p = p.tolist()
+        np.nanquantile(np.arange(100.), p, method="midpoint")
+        assert_array_equal(p, p0)
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize("dtype", np.typecodes["Float"])
+    @pytest.mark.parametrize("array", [
+        np.array(np.nan),
+        np.full((3, 3), np.nan),
+    ], ids=["0d", "2d"])
+    def test_allnans(self, axis, dtype, array):
+        if axis is not None and array.ndim == 0:
+            pytest.skip("`axis != None` not supported for 0d arrays")
+
+        array = array.astype(dtype)
+        with pytest.warns(RuntimeWarning, match="All-NaN slice encountered"):
+            out = np.nanquantile(array, 1, axis=axis)
+        assert np.isnan(out).all()
+        assert out.dtype == array.dtype
+
+@pytest.mark.parametrize("arr, expected", [
+    # array of floats with some nans
+    (np.array([np.nan, 5.0, np.nan, np.inf]),
+     np.array([False, True, False, True])),
+    # int64 array that can't possibly have nans
+    (np.array([1, 5, 7, 9], dtype=np.int64),
+     True),
+    # bool array that can't possibly have nans
+    (np.array([False, True, False, True]),
+     True),
+    # 2-D complex array with nans
+    (np.array([[np.nan, 5.0],
+               [np.nan, np.inf]], dtype=np.complex64),
+     np.array([[False, True],
+               [False, True]])),
+    ])
+def test__nan_mask(arr, expected):
+    for out in [None, np.empty(arr.shape, dtype=np.bool)]:
+        actual = _nan_mask(arr, out=out)
+        assert_equal(actual, expected)
+        # the above won't distinguish between True proper
+        # and an array of True values; we want True proper
+        # for types that can't possibly contain NaN
+        if type(expected) is not np.ndarray:
+            assert actual is True
+
+
+def test__replace_nan():
+    """ Test that _replace_nan returns the original array if there are no
+    NaNs, not a copy.
+    """
+    for dtype in [np.bool, np.int32, np.int64]:
+        arr = np.array([0, 1], dtype=dtype)
+        result, mask = _replace_nan(arr, 0)
+        assert mask is None
+        # do not make a copy if there are no nans
+        assert result is arr
+
+    for dtype in [np.float32, np.float64]:
+        arr = np.array([0, 1], dtype=dtype)
+        result, mask = _replace_nan(arr, 2)
+        assert (mask == False).all()
+        # mask is not None, so we make a copy
+        assert result is not arr
+        assert_equal(result, arr)
+
+        arr_nan = np.array([0, 1, np.nan], dtype=dtype)
+        result_nan, mask_nan = _replace_nan(arr_nan, 2)
+        assert_equal(mask_nan, np.array([False, False, True]))
+        assert result_nan is not arr_nan
+        assert_equal(result_nan, np.array([0, 1, 2]))
+        assert np.isnan(arr_nan[-1])
+
+
+@pytest.mark.thread_unsafe(reason="memmap is thread-unsafe (gh-29126)")
+def test_memmap_takes_fast_route(tmpdir):
+    # We want memory mapped arrays to take the fast route through nanmax,
+    # which avoids creating a mask by using fmax.reduce (see gh-28721). So we
+    # check that on bad input, the error is from fmax (rather than maximum).
+    a = np.arange(10., dtype=float)
+    with open(tmpdir.join("data.bin"), "w+b") as fh:
+        fh.write(a.tobytes())
+        mm = np.memmap(fh, dtype=a.dtype, shape=a.shape)
+        with pytest.raises(ValueError, match="reduction operation fmax"):
+            np.nanmax(mm, out=np.zeros(2))
+        # For completeness, same for nanmin.
+        with pytest.raises(ValueError, match="reduction operation fmin"):
+            np.nanmin(mm, out=np.zeros(2))
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_packbits.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_packbits.py
new file mode 100644
index 0000000000000000000000000000000000000000..e4315847007e62399f00f9708b22a0f1778b8601
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_packbits.py
@@ -0,0 +1,376 @@
+from itertools import chain
+
+import pytest
+
+import numpy as np
+from numpy.testing import assert_array_equal, assert_equal, assert_raises
+
+
+def test_packbits():
+    # Copied from the docstring.
+    a = [[[1, 0, 1], [0, 1, 0]],
+         [[1, 1, 0], [0, 0, 1]]]
+    for dt in '?bBhHiIlLqQ':
+        arr = np.array(a, dtype=dt)
+        b = np.packbits(arr, axis=-1)
+        assert_equal(b.dtype, np.uint8)
+        assert_array_equal(b, np.array([[[160], [64]], [[192], [32]]]))
+
+    assert_raises(TypeError, np.packbits, np.array(a, dtype=float))
+
+
+def test_packbits_empty():
+    shapes = [
+        (0,), (10, 20, 0), (10, 0, 20), (0, 10, 20), (20, 0, 0), (0, 20, 0),
+        (0, 0, 20), (0, 0, 0),
+    ]
+    for dt in '?bBhHiIlLqQ':
+        for shape in shapes:
+            a = np.empty(shape, dtype=dt)
+            b = np.packbits(a)
+            assert_equal(b.dtype, np.uint8)
+            assert_equal(b.shape, (0,))
+
+
+def test_packbits_empty_with_axis():
+    # Original shapes and lists of packed shapes for different axes.
+    shapes = [
+        ((0,), [(0,)]),
+        ((10, 20, 0), [(2, 20, 0), (10, 3, 0), (10, 20, 0)]),
+        ((10, 0, 20), [(2, 0, 20), (10, 0, 20), (10, 0, 3)]),
+        ((0, 10, 20), [(0, 10, 20), (0, 2, 20), (0, 10, 3)]),
+        ((20, 0, 0), [(3, 0, 0), (20, 0, 0), (20, 0, 0)]),
+        ((0, 20, 0), [(0, 20, 0), (0, 3, 0), (0, 20, 0)]),
+        ((0, 0, 20), [(0, 0, 20), (0, 0, 20), (0, 0, 3)]),
+        ((0, 0, 0), [(0, 0, 0), (0, 0, 0), (0, 0, 0)]),
+    ]
+    for dt in '?bBhHiIlLqQ':
+        for in_shape, out_shapes in shapes:
+            for ax, out_shape in enumerate(out_shapes):
+                a = np.empty(in_shape, dtype=dt)
+                b = np.packbits(a, axis=ax)
+                assert_equal(b.dtype, np.uint8)
+                assert_equal(b.shape, out_shape)
+
+@pytest.mark.parametrize('bitorder', ('little', 'big'))
+def test_packbits_large(bitorder):
+    # test data large enough for 16 byte vectorization
+    a = np.array([1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0,
+                  0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1,
+                  1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0,
+                  1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1,
+                  1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1,
+                  1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1,
+                  1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1,
+                  0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1,
+                  1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0,
+                  1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1,
+                  1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0,
+                  0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1,
+                  1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0,
+                  1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0,
+                  1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0])
+    a = a.repeat(3)
+    for dtype in '?bBhHiIlLqQ':
+        arr = np.array(a, dtype=dtype)
+        b = np.packbits(arr, axis=None, bitorder=bitorder)
+        assert_equal(b.dtype, np.uint8)
+        r = [252, 127, 192, 3, 254, 7, 252, 0, 7, 31, 240, 0, 28, 1, 255, 252,
+             113, 248, 3, 255, 192, 28, 15, 192, 28, 126, 0, 224, 127, 255,
+             227, 142, 7, 31, 142, 63, 28, 126, 56, 227, 240, 0, 227, 128, 63,
+             224, 14, 56, 252, 112, 56, 255, 241, 248, 3, 240, 56, 224, 112,
+             63, 255, 255, 199, 224, 14, 0, 31, 143, 192, 3, 255, 199, 0, 1,
+             255, 224, 1, 255, 252, 126, 63, 0, 1, 192, 252, 14, 63, 0, 15,
+             199, 252, 113, 255, 3, 128, 56, 252, 14, 7, 0, 113, 255, 255, 142, 56, 227,
+             129, 248, 227, 129, 199, 31, 128]
+        if bitorder == 'big':
+            assert_array_equal(b, r)
+        # equal for size being multiple of 8
+        assert_array_equal(np.unpackbits(b, bitorder=bitorder)[:-4], a)
+
+        # check last byte of different remainders (16 byte vectorization)
+        b = [np.packbits(arr[:-i], axis=None)[-1] for i in range(1, 16)]
+        assert_array_equal(b, [128, 128, 128, 31, 30, 28, 24, 16, 0, 0, 0, 199,
+                               198, 196, 192])
+
+        arr = arr.reshape(36, 25)
+        b = np.packbits(arr, axis=0)
+        assert_equal(b.dtype, np.uint8)
+        assert_array_equal(b, [[190, 186, 178, 178, 150, 215, 87, 83, 83, 195,
+                                199, 206, 204, 204, 140, 140, 136, 136, 8, 40, 105,
+                                107, 75, 74, 88],
+                               [72, 216, 248, 241, 227, 195, 202, 90, 90, 83,
+                                83, 119, 127, 109, 73, 64, 208, 244, 189, 45,
+                                41, 104, 122, 90, 18],
+                               [113, 120, 248, 216, 152, 24, 60, 52, 182, 150,
+                                150, 150, 146, 210, 210, 246, 255, 255, 223,
+                                151, 21, 17, 17, 131, 163],
+                               [214, 210, 210, 64, 68, 5, 5, 1, 72, 88, 92,
+                                92, 78, 110, 39, 181, 149, 220, 222, 218, 218,
+                                202, 234, 170, 168],
+                               [0, 128, 128, 192, 80, 112, 48, 160, 160, 224,
+                                240, 208, 144, 128, 160, 224, 240, 208, 144,
+                                144, 176, 240, 224, 192, 128]])
+
+        b = np.packbits(arr, axis=1)
+        assert_equal(b.dtype, np.uint8)
+        assert_array_equal(b, [[252, 127, 192,   0],
+                               [  7, 252,  15, 128],
+                               [240,   0,  28,   0],
+                               [255, 128,   0, 128],
+                               [192,  31, 255, 128],
+                               [142,  63,   0,   0],
+                               [255, 240,   7,   0],
+                               [  7, 224,  14,   0],
+                               [126,   0, 224,   0],
+                               [255, 255, 199,   0],
+                               [ 56,  28, 126,   0],
+                               [113, 248, 227, 128],
+                               [227, 142,  63,   0],
+                               [  0,  28, 112,   0],
+                               [ 15, 248,   3, 128],
+                               [ 28, 126,  56,   0],
+                               [ 56, 255, 241, 128],
+                               [240,   7, 224,   0],
+                               [227, 129, 192, 128],
+                               [255, 255, 254,   0],
+                               [126,   0, 224,   0],
+                               [  3, 241, 248,   0],
+                               [  0, 255, 241, 128],
+                               [128,   0, 255, 128],
+                               [224,   1, 255, 128],
+                               [248, 252, 126,   0],
+                               [  0,   7,   3, 128],
+                               [224, 113, 248,   0],
+                               [  0, 252, 127, 128],
+                               [142,  63, 224,   0],
+                               [224,  14,  63,   0],
+                               [  7,   3, 128,   0],
+                               [113, 255, 255, 128],
+                               [ 28, 113, 199,   0],
+                               [  7, 227, 142,   0],
+                               [ 14,  56, 252,   0]])
+
+        arr = arr.T.copy()
+        b = np.packbits(arr, axis=0)
+        assert_equal(b.dtype, np.uint8)
+        assert_array_equal(b, [[252, 7, 240, 255, 192, 142, 255, 7, 126, 255,
+                                56, 113, 227, 0, 15, 28, 56, 240, 227, 255,
+                                126, 3, 0, 128, 224, 248, 0, 224, 0, 142, 224,
+                                7, 113, 28, 7, 14],
+                                [127, 252, 0, 128, 31, 63, 240, 224, 0, 255,
+                                 28, 248, 142, 28, 248, 126, 255, 7, 129, 255,
+                                 0, 241, 255, 0, 1, 252, 7, 113, 252, 63, 14,
+                                 3, 255, 113, 227, 56],
+                                [192, 15, 28, 0, 255, 0, 7, 14, 224, 199, 126,
+                                 227, 63, 112, 3, 56, 241, 224, 192, 254, 224,
+                                 248, 241, 255, 255, 126, 3, 248, 127, 224, 63,
+                                 128, 255, 199, 142, 252],
+                                [0, 128, 0, 128, 128, 0, 0, 0, 0, 0, 0, 128, 0,
+                                 0, 128, 0, 128, 0, 128, 0, 0, 0, 128, 128,
+                                 128, 0, 128, 0, 128, 0, 0, 0, 128, 0, 0, 0]])
+
+        b = np.packbits(arr, axis=1)
+        assert_equal(b.dtype, np.uint8)
+        assert_array_equal(b, [[190,  72, 113, 214,   0],
+                               [186, 216, 120, 210, 128],
+                               [178, 248, 248, 210, 128],
+                               [178, 241, 216,  64, 192],
+                               [150, 227, 152,  68,  80],
+                               [215, 195,  24,   5, 112],
+                               [ 87, 202,  60,   5,  48],
+                               [ 83,  90,  52,   1, 160],
+                               [ 83,  90, 182,  72, 160],
+                               [195,  83, 150,  88, 224],
+                               [199,  83, 150,  92, 240],
+                               [206, 119, 150,  92, 208],
+                               [204, 127, 146,  78, 144],
+                               [204, 109, 210, 110, 128],
+                               [140,  73, 210,  39, 160],
+                               [140,  64, 246, 181, 224],
+                               [136, 208, 255, 149, 240],
+                               [136, 244, 255, 220, 208],
+                               [  8, 189, 223, 222, 144],
+                               [ 40,  45, 151, 218, 144],
+                               [105,  41,  21, 218, 176],
+                               [107, 104,  17, 202, 240],
+                               [ 75, 122,  17, 234, 224],
+                               [ 74,  90, 131, 170, 192],
+                               [ 88,  18, 163, 168, 128]])
+
+    # result is the same if input is multiplied with a nonzero value
+    for dtype in 'bBhHiIlLqQ':
+        arr = np.array(a, dtype=dtype)
+        rnd = np.random.randint(low=np.iinfo(dtype).min,
+                                high=np.iinfo(dtype).max, size=arr.size,
+                                dtype=dtype)
+        rnd[rnd == 0] = 1
+        arr *= rnd.astype(dtype)
+        b = np.packbits(arr, axis=-1)
+        assert_array_equal(np.unpackbits(b)[:-4], a)
+
+    assert_raises(TypeError, np.packbits, np.array(a, dtype=float))
+
+
+def test_packbits_very_large():
+    # test some with a larger arrays gh-8637
+    # code is covered earlier but larger array makes crash on bug more likely
+    for s in range(950, 1050):
+        for dt in '?bBhHiIlLqQ':
+            x = np.ones((200, s), dtype=bool)
+            np.packbits(x, axis=1)
+
+
+def test_unpackbits():
+    # Copied from the docstring.
+    a = np.array([[2], [7], [23]], dtype=np.uint8)
+    b = np.unpackbits(a, axis=1)
+    assert_equal(b.dtype, np.uint8)
+    assert_array_equal(b, np.array([[0, 0, 0, 0, 0, 0, 1, 0],
+                                    [0, 0, 0, 0, 0, 1, 1, 1],
+                                    [0, 0, 0, 1, 0, 1, 1, 1]]))
+
+def test_pack_unpack_order():
+    a = np.array([[2], [7], [23]], dtype=np.uint8)
+    b = np.unpackbits(a, axis=1)
+    assert_equal(b.dtype, np.uint8)
+    b_little = np.unpackbits(a, axis=1, bitorder='little')
+    b_big = np.unpackbits(a, axis=1, bitorder='big')
+    assert_array_equal(b, b_big)
+    assert_array_equal(a, np.packbits(b_little, axis=1, bitorder='little'))
+    assert_array_equal(b[:, ::-1], b_little)
+    assert_array_equal(a, np.packbits(b_big, axis=1, bitorder='big'))
+    assert_raises(ValueError, np.unpackbits, a, bitorder='r')
+    assert_raises(TypeError, np.unpackbits, a, bitorder=10)
+
+
+def test_unpackbits_empty():
+    a = np.empty((0,), dtype=np.uint8)
+    b = np.unpackbits(a)
+    assert_equal(b.dtype, np.uint8)
+    assert_array_equal(b, np.empty((0,)))
+
+
+def test_unpackbits_empty_with_axis():
+    # Lists of packed shapes for different axes and unpacked shapes.
+    shapes = [
+        ([(0,)], (0,)),
+        ([(2, 24, 0), (16, 3, 0), (16, 24, 0)], (16, 24, 0)),
+        ([(2, 0, 24), (16, 0, 24), (16, 0, 3)], (16, 0, 24)),
+        ([(0, 16, 24), (0, 2, 24), (0, 16, 3)], (0, 16, 24)),
+        ([(3, 0, 0), (24, 0, 0), (24, 0, 0)], (24, 0, 0)),
+        ([(0, 24, 0), (0, 3, 0), (0, 24, 0)], (0, 24, 0)),
+        ([(0, 0, 24), (0, 0, 24), (0, 0, 3)], (0, 0, 24)),
+        ([(0, 0, 0), (0, 0, 0), (0, 0, 0)], (0, 0, 0)),
+    ]
+    for in_shapes, out_shape in shapes:
+        for ax, in_shape in enumerate(in_shapes):
+            a = np.empty(in_shape, dtype=np.uint8)
+            b = np.unpackbits(a, axis=ax)
+            assert_equal(b.dtype, np.uint8)
+            assert_equal(b.shape, out_shape)
+
+
+def test_unpackbits_large():
+    # test all possible numbers via comparison to already tested packbits
+    d = np.arange(277, dtype=np.uint8)
+    assert_array_equal(np.packbits(np.unpackbits(d)), d)
+    assert_array_equal(np.packbits(np.unpackbits(d[::2])), d[::2])
+    d = np.tile(d, (3, 1))
+    assert_array_equal(np.packbits(np.unpackbits(d, axis=1), axis=1), d)
+    d = d.T.copy()
+    assert_array_equal(np.packbits(np.unpackbits(d, axis=0), axis=0), d)
+
+
+class TestCount:
+    x = np.array([
+        [1, 0, 1, 0, 0, 1, 0],
+        [0, 1, 1, 1, 0, 0, 0],
+        [0, 0, 1, 0, 0, 1, 1],
+        [1, 1, 0, 0, 0, 1, 1],
+        [1, 0, 1, 0, 1, 0, 1],
+        [0, 0, 1, 1, 1, 0, 0],
+        [0, 1, 0, 1, 0, 1, 0],
+    ], dtype=np.uint8)
+    padded1 = np.zeros(57, dtype=np.uint8)
+    padded1[:49] = x.ravel()
+    padded1b = np.zeros(57, dtype=np.uint8)
+    padded1b[:49] = x[::-1].copy().ravel()
+    padded2 = np.zeros((9, 9), dtype=np.uint8)
+    padded2[:7, :7] = x
+
+    @pytest.mark.parametrize('bitorder', ('little', 'big'))
+    @pytest.mark.parametrize('count', chain(range(58), range(-1, -57, -1)))
+    def test_roundtrip(self, bitorder, count):
+        if count < 0:
+            # one extra zero of padding
+            cutoff = count - 1
+        else:
+            cutoff = count
+        # test complete invertibility of packbits and unpackbits with count
+        packed = np.packbits(self.x, bitorder=bitorder)
+        unpacked = np.unpackbits(packed, count=count, bitorder=bitorder)
+        assert_equal(unpacked.dtype, np.uint8)
+        assert_array_equal(unpacked, self.padded1[:cutoff])
+
+    @pytest.mark.parametrize('kwargs', [
+                    {}, {'count': None},
+                    ])
+    def test_count(self, kwargs):
+        packed = np.packbits(self.x)
+        unpacked = np.unpackbits(packed, **kwargs)
+        assert_equal(unpacked.dtype, np.uint8)
+        assert_array_equal(unpacked, self.padded1[:-1])
+
+    @pytest.mark.parametrize('bitorder', ('little', 'big'))
+    # delta==-1 when count<0 because one extra zero of padding
+    @pytest.mark.parametrize('count', chain(range(8), range(-1, -9, -1)))
+    def test_roundtrip_axis(self, bitorder, count):
+        if count < 0:
+            # one extra zero of padding
+            cutoff = count - 1
+        else:
+            cutoff = count
+        packed0 = np.packbits(self.x, axis=0, bitorder=bitorder)
+        unpacked0 = np.unpackbits(packed0, axis=0, count=count,
+                                  bitorder=bitorder)
+        assert_equal(unpacked0.dtype, np.uint8)
+        assert_array_equal(unpacked0, self.padded2[:cutoff, :self.x.shape[1]])
+
+        packed1 = np.packbits(self.x, axis=1, bitorder=bitorder)
+        unpacked1 = np.unpackbits(packed1, axis=1, count=count,
+                                  bitorder=bitorder)
+        assert_equal(unpacked1.dtype, np.uint8)
+        assert_array_equal(unpacked1, self.padded2[:self.x.shape[0], :cutoff])
+
+    @pytest.mark.parametrize('kwargs', [
+                    {}, {'count': None},
+                    {'bitorder': 'little'},
+                    {'bitorder': 'little', 'count': None},
+                    {'bitorder': 'big'},
+                    {'bitorder': 'big', 'count': None},
+                    ])
+    def test_axis_count(self, kwargs):
+        packed0 = np.packbits(self.x, axis=0)
+        unpacked0 = np.unpackbits(packed0, axis=0, **kwargs)
+        assert_equal(unpacked0.dtype, np.uint8)
+        if kwargs.get('bitorder', 'big') == 'big':
+            assert_array_equal(unpacked0, self.padded2[:-1, :self.x.shape[1]])
+        else:
+            assert_array_equal(unpacked0[::-1, :], self.padded2[:-1, :self.x.shape[1]])
+
+        packed1 = np.packbits(self.x, axis=1)
+        unpacked1 = np.unpackbits(packed1, axis=1, **kwargs)
+        assert_equal(unpacked1.dtype, np.uint8)
+        if kwargs.get('bitorder', 'big') == 'big':
+            assert_array_equal(unpacked1, self.padded2[:self.x.shape[0], :-1])
+        else:
+            assert_array_equal(unpacked1[:, ::-1], self.padded2[:self.x.shape[0], :-1])
+
+    def test_bad_count(self):
+        packed0 = np.packbits(self.x, axis=0)
+        assert_raises(ValueError, np.unpackbits, packed0, axis=0, count=-9)
+        packed1 = np.packbits(self.x, axis=1)
+        assert_raises(ValueError, np.unpackbits, packed1, axis=1, count=-9)
+        packed = np.packbits(self.x)
+        assert_raises(ValueError, np.unpackbits, packed, count=-57)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_polynomial.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_polynomial.py
new file mode 100644
index 0000000000000000000000000000000000000000..5ddddf685a41f348205e8570b11eeaa54a42cdc0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_polynomial.py
@@ -0,0 +1,325 @@
+import pytest
+
+import numpy as np
+import numpy.polynomial.polynomial as poly
+from numpy.testing import (
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+# `poly1d` has some support for `np.bool` and `np.timedelta64`,
+# but it is limited and they are therefore excluded here
+TYPE_CODES = np.typecodes["AllInteger"] + np.typecodes["AllFloat"] + "O"
+
+
+class TestPolynomial:
+    def test_poly1d_str_and_repr(self):
+        p = np.poly1d([1., 2, 3])
+        assert_equal(repr(p), 'poly1d([1., 2., 3.])')
+        assert_equal(str(p),
+                     '   2\n'
+                     '1 x + 2 x + 3')
+
+        q = np.poly1d([3., 2, 1])
+        assert_equal(repr(q), 'poly1d([3., 2., 1.])')
+        assert_equal(str(q),
+                     '   2\n'
+                     '3 x + 2 x + 1')
+
+        r = np.poly1d([1.89999 + 2j, -3j, -5.12345678, 2 + 1j])
+        assert_equal(str(r),
+                     '            3      2\n'
+                     '(1.9 + 2j) x - 3j x - 5.123 x + (2 + 1j)')
+
+        assert_equal(str(np.poly1d([-3, -2, -1])),
+                     '    2\n'
+                     '-3 x - 2 x - 1')
+
+    def test_poly1d_resolution(self):
+        p = np.poly1d([1., 2, 3])
+        q = np.poly1d([3., 2, 1])
+        assert_equal(p(0), 3.0)
+        assert_equal(p(5), 38.0)
+        assert_equal(q(0), 1.0)
+        assert_equal(q(5), 86.0)
+
+    def test_poly1d_math(self):
+        # here we use some simple coeffs to make calculations easier
+        p = np.poly1d([1., 2, 4])
+        q = np.poly1d([4., 2, 1])
+        assert_equal(p / q, (np.poly1d([0.25]), np.poly1d([1.5, 3.75])))
+        assert_equal(p.integ(), np.poly1d([1 / 3, 1., 4., 0.]))
+        assert_equal(p.integ(1), np.poly1d([1 / 3, 1., 4., 0.]))
+
+        p = np.poly1d([1., 2, 3])
+        q = np.poly1d([3., 2, 1])
+        assert_equal(p * q, np.poly1d([3., 8., 14., 8., 3.]))
+        assert_equal(p + q, np.poly1d([4., 4., 4.]))
+        assert_equal(p - q, np.poly1d([-2., 0., 2.]))
+        assert_equal(p ** 4, np.poly1d([1., 8., 36., 104., 214.,
+                                        312., 324., 216., 81.]))
+        assert_equal(p(q), np.poly1d([9., 12., 16., 8., 6.]))
+        assert_equal(q(p), np.poly1d([3., 12., 32., 40., 34.]))
+        assert_equal(p.deriv(), np.poly1d([2., 2.]))
+        assert_equal(p.deriv(2), np.poly1d([2.]))
+        assert_equal(np.polydiv(np.poly1d([1, 0, -1]), np.poly1d([1, 1])),
+                     (np.poly1d([1., -1.]), np.poly1d([0.])))
+
+    @pytest.mark.parametrize("type_code", TYPE_CODES)
+    def test_poly1d_misc(self, type_code: str) -> None:
+        dtype = np.dtype(type_code)
+        ar = np.array([1, 2, 3], dtype=dtype)
+        p = np.poly1d(ar)
+
+        # `__eq__`
+        assert_equal(np.asarray(p), ar)
+        assert_equal(np.asarray(p).dtype, dtype)
+        assert_equal(len(p), 2)
+
+        # `__getitem__`
+        comparison_dct = {-1: 0, 0: 3, 1: 2, 2: 1, 3: 0}
+        for index, ref in comparison_dct.items():
+            scalar = p[index]
+            assert_equal(scalar, ref)
+            if dtype == np.object_:
+                assert isinstance(scalar, int)
+            else:
+                assert_equal(scalar.dtype, dtype)
+
+    def test_poly1d_variable_arg(self):
+        q = np.poly1d([1., 2, 3], variable='y')
+        assert_equal(str(q),
+                     '   2\n'
+                     '1 y + 2 y + 3')
+        q = np.poly1d([1., 2, 3], variable='lambda')
+        assert_equal(str(q),
+                     '        2\n'
+                     '1 lambda + 2 lambda + 3')
+
+    def test_poly(self):
+        assert_array_almost_equal(np.poly([3, -np.sqrt(2), np.sqrt(2)]),
+                                  [1, -3, -2, 6])
+
+        # From matlab docs
+        A = [[1, 2, 3], [4, 5, 6], [7, 8, 0]]
+        assert_array_almost_equal(np.poly(A), [1, -6, -72, -27])
+
+        # Should produce real output for perfect conjugates
+        assert_(np.isrealobj(np.poly([+1.082j, +2.613j, -2.613j, -1.082j])))
+        assert_(np.isrealobj(np.poly([0 + 1j, -0 + -1j, 1 + 2j,
+                                      1 - 2j, 1. + 3.5j, 1 - 3.5j])))
+        assert_(np.isrealobj(np.poly([1j, -1j, 1 + 2j, 1 - 2j, 1 + 3j, 1 - 3.j])))
+        assert_(np.isrealobj(np.poly([1j, -1j, 1 + 2j, 1 - 2j])))
+        assert_(np.isrealobj(np.poly([1j, -1j, 2j, -2j])))
+        assert_(np.isrealobj(np.poly([1j, -1j])))
+        assert_(np.isrealobj(np.poly([1, -1])))
+
+        assert_(np.iscomplexobj(np.poly([1j, -1.0000001j])))
+
+        np.random.seed(42)
+        a = np.random.randn(100) + 1j * np.random.randn(100)
+        assert_(np.isrealobj(np.poly(np.concatenate((a, np.conjugate(a))))))
+
+    def test_roots(self):
+        assert_array_equal(np.roots([1, 0, 0]), [0, 0])
+
+        # Testing for larger root values
+        for i in np.logspace(10, 25, num=1000, base=10):
+            tgt = np.array([-1, 1, i])
+            res = np.sort(np.roots(poly.polyfromroots(tgt)[::-1]))
+            # Adapting the expected precision according to the root value,
+            # to take into account numerical calculation error
+            assert_almost_equal(res, tgt, 14 - int(np.log10(i)))
+
+        for i in np.logspace(10, 25, num=1000, base=10):
+            tgt = np.array([-1, 1.01, i])
+            res = np.sort(np.roots(poly.polyfromroots(tgt)[::-1]))
+            # Adapting the expected precision according to the root value,
+            # to take into account numerical calculation error
+            assert_almost_equal(res, tgt, 14 - int(np.log10(i)))
+
+    def test_str_leading_zeros(self):
+        p = np.poly1d([4, 3, 2, 1])
+        p[3] = 0
+        assert_equal(str(p),
+                     "   2\n"
+                     "3 x + 2 x + 1")
+
+        p = np.poly1d([1, 2])
+        p[0] = 0
+        p[1] = 0
+        assert_equal(str(p), " \n0")
+
+    def test_polyfit(self):
+        c = np.array([3., 2., 1.])
+        x = np.linspace(0, 2, 7)
+        y = np.polyval(c, x)
+        err = [1, -1, 1, -1, 1, -1, 1]
+        weights = np.arange(8, 1, -1)**2 / 7.0
+
+        # Check exception when too few points for variance estimate. Note that
+        # the estimate requires the number of data points to exceed
+        # degree + 1
+        assert_raises(ValueError, np.polyfit,
+                      [1], [1], deg=0, cov=True)
+
+        # check 1D case
+        m, cov = np.polyfit(x, y + err, 2, cov=True)
+        est = [3.8571, 0.2857, 1.619]
+        assert_almost_equal(est, m, decimal=4)
+        val0 = [[ 1.4694, -2.9388,  0.8163],
+                [-2.9388,  6.3673, -2.1224],
+                [ 0.8163, -2.1224,  1.161 ]]  # noqa: E202
+        assert_almost_equal(val0, cov, decimal=4)
+
+        m2, cov2 = np.polyfit(x, y + err, 2, w=weights, cov=True)
+        assert_almost_equal([4.8927, -1.0177, 1.7768], m2, decimal=4)
+        val = [[ 4.3964, -5.0052,  0.4878],
+               [-5.0052,  6.8067, -0.9089],
+               [ 0.4878, -0.9089,  0.3337]]
+        assert_almost_equal(val, cov2, decimal=4)
+
+        m3, cov3 = np.polyfit(x, y + err, 2, w=weights, cov="unscaled")
+        assert_almost_equal([4.8927, -1.0177, 1.7768], m3, decimal=4)
+        val = [[ 0.1473, -0.1677,  0.0163],
+               [-0.1677,  0.228 , -0.0304],  # noqa: E203
+               [ 0.0163, -0.0304,  0.0112]]
+        assert_almost_equal(val, cov3, decimal=4)
+
+        # check 2D (n,1) case
+        y = y[:, np.newaxis]
+        c = c[:, np.newaxis]
+        assert_almost_equal(c, np.polyfit(x, y, 2))
+        # check 2D (n,2) case
+        yy = np.concatenate((y, y), axis=1)
+        cc = np.concatenate((c, c), axis=1)
+        assert_almost_equal(cc, np.polyfit(x, yy, 2))
+
+        m, cov = np.polyfit(x, yy + np.array(err)[:, np.newaxis], 2, cov=True)
+        assert_almost_equal(est, m[:, 0], decimal=4)
+        assert_almost_equal(est, m[:, 1], decimal=4)
+        assert_almost_equal(val0, cov[:, :, 0], decimal=4)
+        assert_almost_equal(val0, cov[:, :, 1], decimal=4)
+
+        # check order 1 (deg=0) case, were the analytic results are simple
+        np.random.seed(123)
+        y = np.random.normal(size=(4, 10000))
+        mean, cov = np.polyfit(np.zeros(y.shape[0]), y, deg=0, cov=True)
+        # Should get sigma_mean = sigma/sqrt(N) = 1./sqrt(4) = 0.5.
+        assert_allclose(mean.std(), 0.5, atol=0.01)
+        assert_allclose(np.sqrt(cov.mean()), 0.5, atol=0.01)
+        # Without scaling, since reduced chi2 is 1, the result should be the same.
+        mean, cov = np.polyfit(np.zeros(y.shape[0]), y, w=np.ones(y.shape[0]),
+                               deg=0, cov="unscaled")
+        assert_allclose(mean.std(), 0.5, atol=0.01)
+        assert_almost_equal(np.sqrt(cov.mean()), 0.5)
+        # If we estimate our errors wrong, no change with scaling:
+        w = np.full(y.shape[0], 1. / 0.5)
+        mean, cov = np.polyfit(np.zeros(y.shape[0]), y, w=w, deg=0, cov=True)
+        assert_allclose(mean.std(), 0.5, atol=0.01)
+        assert_allclose(np.sqrt(cov.mean()), 0.5, atol=0.01)
+        # But if we do not scale, our estimate for the error in the mean will
+        # differ.
+        mean, cov = np.polyfit(np.zeros(y.shape[0]), y, w=w, deg=0, cov="unscaled")
+        assert_allclose(mean.std(), 0.5, atol=0.01)
+        assert_almost_equal(np.sqrt(cov.mean()), 0.25)
+
+    def test_objects(self):
+        from decimal import Decimal
+        p = np.poly1d([Decimal('4.0'), Decimal('3.0'), Decimal('2.0')])
+        p2 = p * Decimal('1.333333333333333')
+        assert_(p2[1] == Decimal("3.9999999999999990"))
+        p2 = p.deriv()
+        assert_(p2[1] == Decimal('8.0'))
+        p2 = p.integ()
+        assert_(p2[3] == Decimal("1.333333333333333333333333333"))
+        assert_(p2[2] == Decimal('1.5'))
+        assert_(np.issubdtype(p2.coeffs.dtype, np.object_))
+        p = np.poly([Decimal(1), Decimal(2)])
+        assert_equal(np.poly([Decimal(1), Decimal(2)]),
+                     [1, Decimal(-3), Decimal(2)])
+
+    def test_complex(self):
+        p = np.poly1d([3j, 2j, 1j])
+        p2 = p.integ()
+        assert_((p2.coeffs == [1j, 1j, 1j, 0]).all())
+        p2 = p.deriv()
+        assert_((p2.coeffs == [6j, 2j]).all())
+
+    def test_integ_coeffs(self):
+        p = np.poly1d([3, 2, 1])
+        p2 = p.integ(3, k=[9, 7, 6])
+        expected = [1 / 4 / 5, 1 / 3 / 4, 1 / 2 / 3, 9 / 1 / 2, 7, 6]
+        assert_((p2.coeffs == expected).all())
+
+    def test_zero_dims(self):
+        try:
+            np.poly(np.zeros((0, 0)))
+        except ValueError:
+            pass
+
+    def test_poly_int_overflow(self):
+        """
+        Regression test for gh-5096.
+        """
+        v = np.arange(1, 21)
+        assert_almost_equal(np.poly(v), np.poly(np.diag(v)))
+
+    def test_zero_poly_dtype(self):
+        """
+        Regression test for gh-16354.
+        """
+        z = np.array([0, 0, 0])
+        p = np.poly1d(z.astype(np.int64))
+        assert_equal(p.coeffs.dtype, np.int64)
+
+        p = np.poly1d(z.astype(np.float32))
+        assert_equal(p.coeffs.dtype, np.float32)
+
+        p = np.poly1d(z.astype(np.complex64))
+        assert_equal(p.coeffs.dtype, np.complex64)
+
+    def test_poly_eq(self):
+        p = np.poly1d([1, 2, 3])
+        p2 = np.poly1d([1, 2, 4])
+        assert_equal(p == None, False)  # noqa: E711
+        assert_equal(p != None, True)  # noqa: E711
+        assert_equal(p == p, True)
+        assert_equal(p == p2, False)
+        assert_equal(p != p2, True)
+
+    def test_polydiv(self):
+        b = np.poly1d([2, 6, 6, 1])
+        a = np.poly1d([-1j, (1 + 2j), -(2 + 1j), 1])
+        q, r = np.polydiv(b, a)
+        assert_equal(q.coeffs.dtype, np.complex128)
+        assert_equal(r.coeffs.dtype, np.complex128)
+        assert_equal(q * a + r, b)
+
+        c = [1, 2, 3]
+        d = np.poly1d([1, 2, 3])
+        s, t = np.polydiv(c, d)
+        assert isinstance(s, np.poly1d)
+        assert isinstance(t, np.poly1d)
+        u, v = np.polydiv(d, c)
+        assert isinstance(u, np.poly1d)
+        assert isinstance(v, np.poly1d)
+
+    def test_poly_coeffs_mutable(self):
+        """ Coefficients should be modifiable """
+        p = np.poly1d([1, 2, 3])
+
+        p.coeffs += 1
+        assert_equal(p.coeffs, [2, 3, 4])
+
+        p.coeffs[2] += 10
+        assert_equal(p.coeffs, [2, 3, 14])
+
+        # this never used to be allowed - let's not add features to deprecated
+        # APIs
+        assert_raises(AttributeError, setattr, p, 'coeffs', np.array(1))
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_recfunctions.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_recfunctions.py
new file mode 100644
index 0000000000000000000000000000000000000000..665e78d9c28196832f0077a5a25dfa2a8d0ad88c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_recfunctions.py
@@ -0,0 +1,1042 @@
+import pytest
+
+import numpy as np
+import numpy.ma as ma
+from numpy.lib.recfunctions import (
+    append_fields,
+    apply_along_fields,
+    assign_fields_by_name,
+    drop_fields,
+    find_duplicates,
+    get_fieldstructure,
+    join_by,
+    merge_arrays,
+    recursive_fill_fields,
+    rename_fields,
+    repack_fields,
+    require_fields,
+    stack_arrays,
+    structured_to_unstructured,
+    unstructured_to_structured,
+)
+from numpy.ma.mrecords import MaskedRecords
+from numpy.ma.testutils import assert_equal
+from numpy.testing import assert_, assert_raises
+
+get_fieldspec = np.lib.recfunctions._get_fieldspec
+get_names = np.lib.recfunctions.get_names
+get_names_flat = np.lib.recfunctions.get_names_flat
+zip_descr = np.lib.recfunctions._zip_descr
+zip_dtype = np.lib.recfunctions._zip_dtype
+
+
+class TestRecFunctions:
+    # Misc tests
+    def test_zip_descr(self):
+        # Test zip_descr
+        x = np.array([1, 2, ])
+        y = np.array([10, 20, 30])
+        z = np.array([('A', 1.), ('B', 2.)],
+                     dtype=[('A', '|S3'), ('B', float)])
+        w = np.array([(1, (2, 3.0)), (4, (5, 6.0))],
+                     dtype=[('a', int), ('b', [('ba', float), ('bb', int)])])
+
+        # Std array
+        test = zip_descr((x, x), flatten=True)
+        assert_equal(test,
+                     np.dtype([('', int), ('', int)]))
+        test = zip_descr((x, x), flatten=False)
+        assert_equal(test,
+                     np.dtype([('', int), ('', int)]))
+
+        # Std & flexible-dtype
+        test = zip_descr((x, z), flatten=True)
+        assert_equal(test,
+                     np.dtype([('', int), ('A', '|S3'), ('B', float)]))
+        test = zip_descr((x, z), flatten=False)
+        assert_equal(test,
+                     np.dtype([('', int),
+                               ('', [('A', '|S3'), ('B', float)])]))
+
+        # Standard & nested dtype
+        test = zip_descr((x, w), flatten=True)
+        assert_equal(test,
+                     np.dtype([('', int),
+                               ('a', int),
+                               ('ba', float), ('bb', int)]))
+        test = zip_descr((x, w), flatten=False)
+        assert_equal(test,
+                     np.dtype([('', int),
+                               ('', [('a', int),
+                                     ('b', [('ba', float), ('bb', int)])])]))
+
+    def test_drop_fields(self):
+        # Test drop_fields
+        a = np.array([(1, (2, 3.0)), (4, (5, 6.0))],
+                     dtype=[('a', int), ('b', [('ba', float), ('bb', int)])])
+
+        # A basic field
+        test = drop_fields(a, 'a')
+        control = np.array([((2, 3.0),), ((5, 6.0),)],
+                           dtype=[('b', [('ba', float), ('bb', int)])])
+        assert_equal(test, control)
+
+        # Another basic field (but nesting two fields)
+        test = drop_fields(a, 'b')
+        control = np.array([(1,), (4,)], dtype=[('a', int)])
+        assert_equal(test, control)
+
+        # A nested sub-field
+        test = drop_fields(a, ['ba', ])
+        control = np.array([(1, (3.0,)), (4, (6.0,))],
+                           dtype=[('a', int), ('b', [('bb', int)])])
+        assert_equal(test, control)
+
+        # All the nested sub-field from a field: zap that field
+        test = drop_fields(a, ['ba', 'bb'])
+        control = np.array([(1,), (4,)], dtype=[('a', int)])
+        assert_equal(test, control)
+
+        # dropping all fields results in an array with no fields
+        test = drop_fields(a, ['a', 'b'])
+        control = np.array([(), ()], dtype=[])
+        assert_equal(test, control)
+
+    def test_rename_fields(self):
+        # Test rename fields
+        a = np.array([(1, (2, [3.0, 30.])), (4, (5, [6.0, 60.]))],
+                     dtype=[('a', int),
+                            ('b', [('ba', float), ('bb', (float, 2))])])
+        test = rename_fields(a, {'a': 'A', 'bb': 'BB'})
+        newdtype = [('A', int), ('b', [('ba', float), ('BB', (float, 2))])]
+        control = a.view(newdtype)
+        assert_equal(test.dtype, newdtype)
+        assert_equal(test, control)
+
+    def test_get_names(self):
+        # Test get_names
+        ndtype = np.dtype([('A', '|S3'), ('B', float)])
+        test = get_names(ndtype)
+        assert_equal(test, ('A', 'B'))
+
+        ndtype = np.dtype([('a', int), ('b', [('ba', float), ('bb', int)])])
+        test = get_names(ndtype)
+        assert_equal(test, ('a', ('b', ('ba', 'bb'))))
+
+        ndtype = np.dtype([('a', int), ('b', [])])
+        test = get_names(ndtype)
+        assert_equal(test, ('a', ('b', ())))
+
+        ndtype = np.dtype([])
+        test = get_names(ndtype)
+        assert_equal(test, ())
+
+    def test_get_names_flat(self):
+        # Test get_names_flat
+        ndtype = np.dtype([('A', '|S3'), ('B', float)])
+        test = get_names_flat(ndtype)
+        assert_equal(test, ('A', 'B'))
+
+        ndtype = np.dtype([('a', int), ('b', [('ba', float), ('bb', int)])])
+        test = get_names_flat(ndtype)
+        assert_equal(test, ('a', 'b', 'ba', 'bb'))
+
+        ndtype = np.dtype([('a', int), ('b', [])])
+        test = get_names_flat(ndtype)
+        assert_equal(test, ('a', 'b'))
+
+        ndtype = np.dtype([])
+        test = get_names_flat(ndtype)
+        assert_equal(test, ())
+
+    def test_get_fieldstructure(self):
+        # Test get_fieldstructure
+
+        # No nested fields
+        ndtype = np.dtype([('A', '|S3'), ('B', float)])
+        test = get_fieldstructure(ndtype)
+        assert_equal(test, {'A': [], 'B': []})
+
+        # One 1-nested field
+        ndtype = np.dtype([('A', int), ('B', [('BA', float), ('BB', '|S1')])])
+        test = get_fieldstructure(ndtype)
+        assert_equal(test, {'A': [], 'B': [], 'BA': ['B', ], 'BB': ['B']})
+
+        # One 2-nested fields
+        ndtype = np.dtype([('A', int),
+                           ('B', [('BA', int),
+                                  ('BB', [('BBA', int), ('BBB', int)])])])
+        test = get_fieldstructure(ndtype)
+        control = {'A': [], 'B': [], 'BA': ['B'], 'BB': ['B'],
+                   'BBA': ['B', 'BB'], 'BBB': ['B', 'BB']}
+        assert_equal(test, control)
+
+        # 0 fields
+        ndtype = np.dtype([])
+        test = get_fieldstructure(ndtype)
+        assert_equal(test, {})
+
+    def test_find_duplicates(self):
+        # Test find_duplicates
+        a = ma.array([(2, (2., 'B')), (1, (2., 'B')), (2, (2., 'B')),
+                      (1, (1., 'B')), (2, (2., 'B')), (2, (2., 'C'))],
+                     mask=[(0, (0, 0)), (0, (0, 0)), (0, (0, 0)),
+                           (0, (0, 0)), (1, (0, 0)), (0, (1, 0))],
+                     dtype=[('A', int), ('B', [('BA', float), ('BB', '|S1')])])
+
+        test = find_duplicates(a, ignoremask=False, return_index=True)
+        control = [0, 2]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+        test = find_duplicates(a, key='A', return_index=True)
+        control = [0, 1, 2, 3, 5]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+        test = find_duplicates(a, key='B', return_index=True)
+        control = [0, 1, 2, 4]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+        test = find_duplicates(a, key='BA', return_index=True)
+        control = [0, 1, 2, 4]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+        test = find_duplicates(a, key='BB', return_index=True)
+        control = [0, 1, 2, 3, 4]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+    def test_find_duplicates_ignoremask(self):
+        # Test the ignoremask option of find_duplicates
+        ndtype = [('a', int)]
+        a = ma.array([1, 1, 1, 2, 2, 3, 3],
+                     mask=[0, 0, 1, 0, 0, 0, 1]).view(ndtype)
+        test = find_duplicates(a, ignoremask=True, return_index=True)
+        control = [0, 1, 3, 4]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+        test = find_duplicates(a, ignoremask=False, return_index=True)
+        control = [0, 1, 2, 3, 4, 6]
+        assert_equal(sorted(test[-1]), control)
+        assert_equal(test[0], a[test[-1]])
+
+    def test_repack_fields(self):
+        dt = np.dtype('u1,f4,i8', align=True)
+        a = np.zeros(2, dtype=dt)
+
+        assert_equal(repack_fields(dt), np.dtype('u1,f4,i8'))
+        assert_equal(repack_fields(a).itemsize, 13)
+        assert_equal(repack_fields(repack_fields(dt), align=True), dt)
+
+        # make sure type is preserved
+        dt = np.dtype((np.record, dt))
+        assert_(repack_fields(dt).type is np.record)
+
+    @pytest.mark.thread_unsafe(reason="memmap is thread-unsafe (gh-29126)")
+    def test_structured_to_unstructured(self, tmp_path):
+        a = np.zeros(4, dtype=[('a', 'i4'), ('b', 'f4,u2'), ('c', 'f4', 2)])
+        out = structured_to_unstructured(a)
+        assert_equal(out, np.zeros((4, 5), dtype='f8'))
+
+        b = np.array([(1, 2, 5), (4, 5, 7), (7, 8, 11), (10, 11, 12)],
+                     dtype=[('x', 'i4'), ('y', 'f4'), ('z', 'f8')])
+        out = np.mean(structured_to_unstructured(b[['x', 'z']]), axis=-1)
+        assert_equal(out, np.array([3.,  5.5,  9., 11.]))
+        out = np.mean(structured_to_unstructured(b[['x']]), axis=-1)
+        assert_equal(out, np.array([1.,  4. ,  7., 10.]))  # noqa: E203
+
+        c = np.arange(20).reshape((4, 5))
+        out = unstructured_to_structured(c, a.dtype)
+        want = np.array([( 0, ( 1.,  2), [ 3.,  4.]),
+                         ( 5, ( 6.,  7), [ 8.,  9.]),
+                         (10, (11., 12), [13., 14.]),
+                         (15, (16., 17), [18., 19.])],
+                     dtype=[('a', 'i4'),
+                            ('b', [('f0', 'f4'), ('f1', 'u2')]),
+                            ('c', 'f4', (2,))])
+        assert_equal(out, want)
+
+        d = np.array([(1, 2, 5), (4, 5, 7), (7, 8, 11), (10, 11, 12)],
+                     dtype=[('x', 'i4'), ('y', 'f4'), ('z', 'f8')])
+        assert_equal(apply_along_fields(np.mean, d),
+                     np.array([ 8.0 / 3,  16.0 / 3,  26.0 / 3, 11.]))
+        assert_equal(apply_along_fields(np.mean, d[['x', 'z']]),
+                     np.array([ 3.,  5.5,  9., 11.]))
+
+        # check that for uniform field dtypes we get a view, not a copy:
+        d = np.array([(1, 2, 5), (4, 5, 7), (7, 8, 11), (10, 11, 12)],
+                     dtype=[('x', 'i4'), ('y', 'i4'), ('z', 'i4')])
+        dd = structured_to_unstructured(d)
+        ddd = unstructured_to_structured(dd, d.dtype)
+        assert_(np.shares_memory(dd, d))
+        assert_(np.shares_memory(ddd, d))
+
+        # check that reversing the order of attributes works
+        dd_attrib_rev = structured_to_unstructured(d[['z', 'x']])
+        assert_equal(dd_attrib_rev, [[5, 1], [7, 4], [11, 7], [12, 10]])
+        assert_(np.shares_memory(dd_attrib_rev, d))
+
+        # including uniform fields with subarrays unpacked
+        d = np.array([(1, [2,  3], [[ 4,  5], [ 6,  7]]),
+                      (8, [9, 10], [[11, 12], [13, 14]])],
+                     dtype=[('x0', 'i4'), ('x1', ('i4', 2)),
+                            ('x2', ('i4', (2, 2)))])
+        dd = structured_to_unstructured(d)
+        ddd = unstructured_to_structured(dd, d.dtype)
+        assert_(np.shares_memory(dd, d))
+        assert_(np.shares_memory(ddd, d))
+
+        # check that reversing with sub-arrays works as expected
+        d_rev = d[::-1]
+        dd_rev = structured_to_unstructured(d_rev)
+        assert_equal(dd_rev, [[8, 9, 10, 11, 12, 13, 14],
+                              [1, 2, 3, 4, 5, 6, 7]])
+
+        # check that sub-arrays keep the order of their values
+        d_attrib_rev = d[['x2', 'x1', 'x0']]
+        dd_attrib_rev = structured_to_unstructured(d_attrib_rev)
+        assert_equal(dd_attrib_rev, [[4, 5, 6, 7, 2, 3, 1],
+                                     [11, 12, 13, 14, 9, 10, 8]])
+
+        # with ignored field at the end
+        d = np.array([(1, [2,  3], [[4, 5], [6, 7]], 32),
+                      (8, [9, 10], [[11, 12], [13, 14]], 64)],
+                     dtype=[('x0', 'i4'), ('x1', ('i4', 2)),
+                            ('x2', ('i4', (2, 2))), ('ignored', 'u1')])
+        dd = structured_to_unstructured(d[['x0', 'x1', 'x2']])
+        assert_(np.shares_memory(dd, d))
+        assert_equal(dd, [[1, 2, 3, 4, 5, 6, 7],
+                          [8, 9, 10, 11, 12, 13, 14]])
+
+        # test that nested fields with identical names don't break anything
+        point = np.dtype([('x', int), ('y', int)])
+        triangle = np.dtype([('a', point), ('b', point), ('c', point)])
+        arr = np.zeros(10, triangle)
+        res = structured_to_unstructured(arr, dtype=int)
+        assert_equal(res, np.zeros((10, 6), dtype=int))
+
+        # test nested combinations of subarrays and structured arrays, gh-13333
+        def subarray(dt, shape):
+            return np.dtype((dt, shape))
+
+        def structured(*dts):
+            return np.dtype([(f'x{i}', dt) for i, dt in enumerate(dts)])
+
+        def inspect(dt, dtype=None):
+            arr = np.zeros((), dt)
+            ret = structured_to_unstructured(arr, dtype=dtype)
+            backarr = unstructured_to_structured(ret, dt)
+            return ret.shape, ret.dtype, backarr.dtype
+
+        dt = structured(subarray(structured(np.int32, np.int32), 3))
+        assert_equal(inspect(dt), ((6,), np.int32, dt))
+
+        dt = structured(subarray(subarray(np.int32, 2), 2))
+        assert_equal(inspect(dt), ((4,), np.int32, dt))
+
+        dt = structured(np.int32)
+        assert_equal(inspect(dt), ((1,), np.int32, dt))
+
+        dt = structured(np.int32, subarray(subarray(np.int32, 2), 2))
+        assert_equal(inspect(dt), ((5,), np.int32, dt))
+
+        dt = structured()
+        assert_raises(ValueError, structured_to_unstructured, np.zeros(3, dt))
+
+        # these currently don't work, but we may make it work in the future
+        assert_raises(NotImplementedError, structured_to_unstructured,
+                                           np.zeros(3, dt), dtype=np.int32)
+        assert_raises(NotImplementedError, unstructured_to_structured,
+                                           np.zeros((3, 0), dtype=np.int32))
+
+        # test supported ndarray subclasses
+        d_plain = np.array([(1, 2), (3, 4)], dtype=[('a', 'i4'), ('b', 'i4')])
+        dd_expected = structured_to_unstructured(d_plain, copy=True)
+
+        # recarray
+        d = d_plain.view(np.recarray)
+
+        dd = structured_to_unstructured(d, copy=False)
+        ddd = structured_to_unstructured(d, copy=True)
+        assert_(np.shares_memory(d, dd))
+        assert_(type(dd) is np.recarray)
+        assert_(type(ddd) is np.recarray)
+        assert_equal(dd, dd_expected)
+        assert_equal(ddd, dd_expected)
+
+        # memmap
+        d = np.memmap(tmp_path / 'memmap',
+                      mode='w+',
+                      dtype=d_plain.dtype,
+                      shape=d_plain.shape)
+        d[:] = d_plain
+        dd = structured_to_unstructured(d, copy=False)
+        ddd = structured_to_unstructured(d, copy=True)
+        assert_(np.shares_memory(d, dd))
+        assert_(type(dd) is np.memmap)
+        assert_(type(ddd) is np.memmap)
+        assert_equal(dd, dd_expected)
+        assert_equal(ddd, dd_expected)
+
+    def test_unstructured_to_structured(self):
+        # test if dtype is the args of np.dtype
+        a = np.zeros((20, 2))
+        test_dtype_args = [('x', float), ('y', float)]
+        test_dtype = np.dtype(test_dtype_args)
+        field1 = unstructured_to_structured(a, dtype=test_dtype_args)  # now
+        field2 = unstructured_to_structured(a, dtype=test_dtype)  # before
+        assert_equal(field1, field2)
+
+    def test_field_assignment_by_name(self):
+        a = np.ones(2, dtype=[('a', 'i4'), ('b', 'f8'), ('c', 'u1')])
+        newdt = [('b', 'f4'), ('c', 'u1')]
+
+        assert_equal(require_fields(a, newdt), np.ones(2, newdt))
+
+        b = np.array([(1, 2), (3, 4)], dtype=newdt)
+        assign_fields_by_name(a, b, zero_unassigned=False)
+        assert_equal(a, np.array([(1, 1, 2), (1, 3, 4)], dtype=a.dtype))
+        assign_fields_by_name(a, b)
+        assert_equal(a, np.array([(0, 1, 2), (0, 3, 4)], dtype=a.dtype))
+
+        # test nested fields
+        a = np.ones(2, dtype=[('a', [('b', 'f8'), ('c', 'u1')])])
+        newdt = [('a', [('c', 'u1')])]
+        assert_equal(require_fields(a, newdt), np.ones(2, newdt))
+        b = np.array([((2,),), ((3,),)], dtype=newdt)
+        assign_fields_by_name(a, b, zero_unassigned=False)
+        assert_equal(a, np.array([((1, 2),), ((1, 3),)], dtype=a.dtype))
+        assign_fields_by_name(a, b)
+        assert_equal(a, np.array([((0, 2),), ((0, 3),)], dtype=a.dtype))
+
+        # test unstructured code path for 0d arrays
+        a, b = np.array(3), np.array(0)
+        assign_fields_by_name(b, a)
+        assert_equal(b[()], 3)
+
+
+class TestRecursiveFillFields:
+    # Test recursive_fill_fields.
+    def test_simple_flexible(self):
+        # Test recursive_fill_fields on flexible-array
+        a = np.array([(1, 10.), (2, 20.)], dtype=[('A', int), ('B', float)])
+        b = np.zeros((3,), dtype=a.dtype)
+        test = recursive_fill_fields(a, b)
+        control = np.array([(1, 10.), (2, 20.), (0, 0.)],
+                           dtype=[('A', int), ('B', float)])
+        assert_equal(test, control)
+
+    def test_masked_flexible(self):
+        # Test recursive_fill_fields on masked flexible-array
+        a = ma.array([(1, 10.), (2, 20.)], mask=[(0, 1), (1, 0)],
+                     dtype=[('A', int), ('B', float)])
+        b = ma.zeros((3,), dtype=a.dtype)
+        test = recursive_fill_fields(a, b)
+        control = ma.array([(1, 10.), (2, 20.), (0, 0.)],
+                           mask=[(0, 1), (1, 0), (0, 0)],
+                           dtype=[('A', int), ('B', float)])
+        assert_equal(test, control)
+
+
+class TestMergeArrays:
+    # Test merge_arrays
+
+    def _create_arrays(self):
+        x = np.array([1, 2, ])
+        y = np.array([10, 20, 30])
+        z = np.array(
+            [('A', 1.), ('B', 2.)], dtype=[('A', '|S3'), ('B', float)])
+        w = np.array(
+            [(1, (2, 3.0, ())), (4, (5, 6.0, ()))],
+            dtype=[('a', int), ('b', [('ba', float), ('bb', int), ('bc', [])])])
+        return w, x, y, z
+
+    def test_solo(self):
+        # Test merge_arrays on a single array.
+        _, x, _, z = self._create_arrays()
+
+        test = merge_arrays(x)
+        control = np.array([(1,), (2,)], dtype=[('f0', int)])
+        assert_equal(test, control)
+        test = merge_arrays((x,))
+        assert_equal(test, control)
+
+        test = merge_arrays(z, flatten=False)
+        assert_equal(test, z)
+        test = merge_arrays(z, flatten=True)
+        assert_equal(test, z)
+
+    def test_solo_w_flatten(self):
+        # Test merge_arrays on a single array w & w/o flattening
+        w = self._create_arrays()[0]
+        test = merge_arrays(w, flatten=False)
+        assert_equal(test, w)
+
+        test = merge_arrays(w, flatten=True)
+        control = np.array([(1, 2, 3.0), (4, 5, 6.0)],
+                           dtype=[('a', int), ('ba', float), ('bb', int)])
+        assert_equal(test, control)
+
+    def test_standard(self):
+        # Test standard & standard
+        # Test merge arrays
+        _, x, y, _ = self._create_arrays()
+        test = merge_arrays((x, y), usemask=False)
+        control = np.array([(1, 10), (2, 20), (-1, 30)],
+                           dtype=[('f0', int), ('f1', int)])
+        assert_equal(test, control)
+
+        test = merge_arrays((x, y), usemask=True)
+        control = ma.array([(1, 10), (2, 20), (-1, 30)],
+                           mask=[(0, 0), (0, 0), (1, 0)],
+                           dtype=[('f0', int), ('f1', int)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+    def test_flatten(self):
+        # Test standard & flexible
+        _, x, _, z = self._create_arrays()
+        test = merge_arrays((x, z), flatten=True)
+        control = np.array([(1, 'A', 1.), (2, 'B', 2.)],
+                           dtype=[('f0', int), ('A', '|S3'), ('B', float)])
+        assert_equal(test, control)
+
+        test = merge_arrays((x, z), flatten=False)
+        control = np.array([(1, ('A', 1.)), (2, ('B', 2.))],
+                           dtype=[('f0', int),
+                                  ('f1', [('A', '|S3'), ('B', float)])])
+        assert_equal(test, control)
+
+    def test_flatten_wflexible(self):
+        # Test flatten standard & nested
+        w, x, _, _ = self._create_arrays()
+        test = merge_arrays((x, w), flatten=True)
+        control = np.array([(1, 1, 2, 3.0), (2, 4, 5, 6.0)],
+                           dtype=[('f0', int),
+                                  ('a', int), ('ba', float), ('bb', int)])
+        assert_equal(test, control)
+
+        test = merge_arrays((x, w), flatten=False)
+        f1_descr = [('a', int), ('b', [('ba', float), ('bb', int), ('bc', [])])]
+        controldtype = [('f0', int), ('f1', f1_descr)]
+        control = np.array([(1., (1, (2, 3.0, ()))), (2, (4, (5, 6.0, ())))],
+                           dtype=controldtype)
+        assert_equal(test, control)
+
+    def test_wmasked_arrays(self):
+        # Test merge_arrays masked arrays
+        x = self._create_arrays()[1]
+        mx = ma.array([1, 2, 3], mask=[1, 0, 0])
+        test = merge_arrays((x, mx), usemask=True)
+        control = ma.array([(1, 1), (2, 2), (-1, 3)],
+                           mask=[(0, 1), (0, 0), (1, 0)],
+                           dtype=[('f0', int), ('f1', int)])
+        assert_equal(test, control)
+        test = merge_arrays((x, mx), usemask=True, asrecarray=True)
+        assert_equal(test, control)
+        assert_(isinstance(test, MaskedRecords))
+
+    def test_w_singlefield(self):
+        # Test single field
+        test = merge_arrays((np.array([1, 2]).view([('a', int)]),
+                             np.array([10., 20., 30.])),)
+        control = ma.array([(1, 10.), (2, 20.), (-1, 30.)],
+                           mask=[(0, 0), (0, 0), (1, 0)],
+                           dtype=[('a', int), ('f1', float)])
+        assert_equal(test, control)
+
+    def test_w_shorter_flex(self):
+        # Test merge_arrays w/ a shorter flexndarray.
+        z = self._create_arrays()[-1]
+
+        # Fixme, this test looks incomplete and broken
+        #test = merge_arrays((z, np.array([10, 20, 30]).view([('C', int)])))
+        #control = np.array([('A', 1., 10), ('B', 2., 20), ('-1', -1, 20)],
+        #                   dtype=[('A', '|S3'), ('B', float), ('C', int)])
+        #assert_equal(test, control)
+
+        merge_arrays((z, np.array([10, 20, 30]).view([('C', int)])))
+        np.array([('A', 1., 10), ('B', 2., 20), ('-1', -1, 20)],
+                 dtype=[('A', '|S3'), ('B', float), ('C', int)])
+
+    def test_singlerecord(self):
+        _, x, y, z = self._create_arrays()
+        test = merge_arrays((x[0], y[0], z[0]), usemask=False)
+        control = np.array([(1, 10, ('A', 1))],
+                           dtype=[('f0', int),
+                                  ('f1', int),
+                                  ('f2', [('A', '|S3'), ('B', float)])])
+        assert_equal(test, control)
+
+
+class TestAppendFields:
+    # Test append_fields
+
+    def _create_arrays(self):
+        x = np.array([1, 2, ])
+        y = np.array([10, 20, 30])
+        z = np.array(
+            [('A', 1.), ('B', 2.)], dtype=[('A', '|S3'), ('B', float)])
+        w = np.array([(1, (2, 3.0)), (4, (5, 6.0))],
+                     dtype=[('a', int), ('b', [('ba', float), ('bb', int)])])
+        return w, x, y, z
+
+    def test_append_single(self):
+        # Test simple case
+        x = self._create_arrays()[1]
+        test = append_fields(x, 'A', data=[10, 20, 30])
+        control = ma.array([(1, 10), (2, 20), (-1, 30)],
+                           mask=[(0, 0), (0, 0), (1, 0)],
+                           dtype=[('f0', int), ('A', int)],)
+        assert_equal(test, control)
+
+    def test_append_double(self):
+        # Test simple case
+        x = self._create_arrays()[1]
+        test = append_fields(x, ('A', 'B'), data=[[10, 20, 30], [100, 200]])
+        control = ma.array([(1, 10, 100), (2, 20, 200), (-1, 30, -1)],
+                           mask=[(0, 0, 0), (0, 0, 0), (1, 0, 1)],
+                           dtype=[('f0', int), ('A', int), ('B', int)],)
+        assert_equal(test, control)
+
+    def test_append_on_flex(self):
+        # Test append_fields on flexible type arrays
+        z = self._create_arrays()[-1]
+        test = append_fields(z, 'C', data=[10, 20, 30])
+        control = ma.array([('A', 1., 10), ('B', 2., 20), (-1, -1., 30)],
+                           mask=[(0, 0, 0), (0, 0, 0), (1, 1, 0)],
+                           dtype=[('A', '|S3'), ('B', float), ('C', int)],)
+        assert_equal(test, control)
+
+    def test_append_on_nested(self):
+        # Test append_fields on nested fields
+        w = self._create_arrays()[0]
+        test = append_fields(w, 'C', data=[10, 20, 30])
+        control = ma.array([(1, (2, 3.0), 10),
+                            (4, (5, 6.0), 20),
+                            (-1, (-1, -1.), 30)],
+                           mask=[(
+                               0, (0, 0), 0), (0, (0, 0), 0), (1, (1, 1), 0)],
+                           dtype=[('a', int),
+                                  ('b', [('ba', float), ('bb', int)]),
+                                  ('C', int)],)
+        assert_equal(test, control)
+
+
+class TestStackArrays:
+    # Test stack_arrays
+    def _create_arrays(self):
+        x = np.array([1, 2, ])
+        y = np.array([10, 20, 30])
+        z = np.array(
+            [('A', 1.), ('B', 2.)], dtype=[('A', '|S3'), ('B', float)])
+        w = np.array([(1, (2, 3.0)), (4, (5, 6.0))],
+                     dtype=[('a', int), ('b', [('ba', float), ('bb', int)])])
+        return w, x, y, z
+
+    def test_solo(self):
+        # Test stack_arrays on single arrays
+        x = self._create_arrays()[1]
+        test = stack_arrays((x,))
+        assert_equal(test, x)
+        assert_(test is x)
+
+        test = stack_arrays(x)
+        assert_equal(test, x)
+        assert_(test is x)
+
+    def test_unnamed_fields(self):
+        # Tests combinations of arrays w/o named fields
+        _, x, y, _ = self._create_arrays()
+
+        test = stack_arrays((x, x), usemask=False)
+        control = np.array([1, 2, 1, 2])
+        assert_equal(test, control)
+
+        test = stack_arrays((x, y), usemask=False)
+        control = np.array([1, 2, 10, 20, 30])
+        assert_equal(test, control)
+
+        test = stack_arrays((y, x), usemask=False)
+        control = np.array([10, 20, 30, 1, 2])
+        assert_equal(test, control)
+
+    def test_unnamed_and_named_fields(self):
+        # Test combination of arrays w/ & w/o named fields
+        _, x, _, z = self._create_arrays()
+
+        test = stack_arrays((x, z))
+        control = ma.array([(1, -1, -1), (2, -1, -1),
+                            (-1, 'A', 1), (-1, 'B', 2)],
+                           mask=[(0, 1, 1), (0, 1, 1),
+                                 (1, 0, 0), (1, 0, 0)],
+                           dtype=[('f0', int), ('A', '|S3'), ('B', float)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+        test = stack_arrays((z, x))
+        control = ma.array([('A', 1, -1), ('B', 2, -1),
+                            (-1, -1, 1), (-1, -1, 2), ],
+                           mask=[(0, 0, 1), (0, 0, 1),
+                                 (1, 1, 0), (1, 1, 0)],
+                           dtype=[('A', '|S3'), ('B', float), ('f2', int)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+        test = stack_arrays((z, z, x))
+        control = ma.array([('A', 1, -1), ('B', 2, -1),
+                            ('A', 1, -1), ('B', 2, -1),
+                            (-1, -1, 1), (-1, -1, 2), ],
+                           mask=[(0, 0, 1), (0, 0, 1),
+                                 (0, 0, 1), (0, 0, 1),
+                                 (1, 1, 0), (1, 1, 0)],
+                           dtype=[('A', '|S3'), ('B', float), ('f2', int)])
+        assert_equal(test, control)
+
+    def test_matching_named_fields(self):
+        # Test combination of arrays w/ matching field names
+        _, x, _, z = self._create_arrays()
+        zz = np.array([('a', 10., 100.), ('b', 20., 200.), ('c', 30., 300.)],
+                      dtype=[('A', '|S3'), ('B', float), ('C', float)])
+        test = stack_arrays((z, zz))
+        control = ma.array([('A', 1, -1), ('B', 2, -1),
+                            (
+                                'a', 10., 100.), ('b', 20., 200.), ('c', 30., 300.)],
+                           dtype=[('A', '|S3'), ('B', float), ('C', float)],
+                           mask=[(0, 0, 1), (0, 0, 1),
+                                 (0, 0, 0), (0, 0, 0), (0, 0, 0)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+        test = stack_arrays((z, zz, x))
+        ndtype = [('A', '|S3'), ('B', float), ('C', float), ('f3', int)]
+        control = ma.array([('A', 1, -1, -1), ('B', 2, -1, -1),
+                            ('a', 10., 100., -1), ('b', 20., 200., -1),
+                            ('c', 30., 300., -1),
+                            (-1, -1, -1, 1), (-1, -1, -1, 2)],
+                           dtype=ndtype,
+                           mask=[(0, 0, 1, 1), (0, 0, 1, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1), (0, 0, 0, 1),
+                                 (1, 1, 1, 0), (1, 1, 1, 0)])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+    def test_defaults(self):
+        # Test defaults: no exception raised if keys of defaults are not fields.
+        z = self._create_arrays()[-1]
+        zz = np.array([('a', 10., 100.), ('b', 20., 200.), ('c', 30., 300.)],
+                      dtype=[('A', '|S3'), ('B', float), ('C', float)])
+        defaults = {'A': '???', 'B': -999., 'C': -9999., 'D': -99999.}
+        test = stack_arrays((z, zz), defaults=defaults)
+        control = ma.array([('A', 1, -9999.), ('B', 2, -9999.),
+                            (
+                                'a', 10., 100.), ('b', 20., 200.), ('c', 30., 300.)],
+                           dtype=[('A', '|S3'), ('B', float), ('C', float)],
+                           mask=[(0, 0, 1), (0, 0, 1),
+                                 (0, 0, 0), (0, 0, 0), (0, 0, 0)])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+    def test_autoconversion(self):
+        # Tests autoconversion
+        adtype = [('A', int), ('B', bool), ('C', float)]
+        a = ma.array([(1, 2, 3)], mask=[(0, 1, 0)], dtype=adtype)
+        bdtype = [('A', int), ('B', float), ('C', float)]
+        b = ma.array([(4, 5, 6)], dtype=bdtype)
+        control = ma.array([(1, 2, 3), (4, 5, 6)], mask=[(0, 1, 0), (0, 0, 0)],
+                           dtype=bdtype)
+        test = stack_arrays((a, b), autoconvert=True)
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        with assert_raises(TypeError):
+            stack_arrays((a, b), autoconvert=False)
+
+    def test_checktitles(self):
+        # Test using titles in the field names
+        adtype = [(('a', 'A'), int), (('b', 'B'), bool), (('c', 'C'), float)]
+        a = ma.array([(1, 2, 3)], mask=[(0, 1, 0)], dtype=adtype)
+        bdtype = [(('a', 'A'), int), (('b', 'B'), bool), (('c', 'C'), float)]
+        b = ma.array([(4, 5, 6)], dtype=bdtype)
+        test = stack_arrays((a, b))
+        control = ma.array([(1, 2, 3), (4, 5, 6)], mask=[(0, 1, 0), (0, 0, 0)],
+                           dtype=bdtype)
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+
+    def test_subdtype(self):
+        z = np.array([
+            ('A', 1), ('B', 2)
+        ], dtype=[('A', '|S3'), ('B', float, (1,))])
+        zz = np.array([
+            ('a', [10.], 100.), ('b', [20.], 200.), ('c', [30.], 300.)
+        ], dtype=[('A', '|S3'), ('B', float, (1,)), ('C', float)])
+
+        res = stack_arrays((z, zz))
+        expected = ma.array(
+            data=[
+                (b'A', [1.0], 0),
+                (b'B', [2.0], 0),
+                (b'a', [10.0], 100.0),
+                (b'b', [20.0], 200.0),
+                (b'c', [30.0], 300.0)],
+            mask=[
+                (False, [False], True),
+                (False, [False], True),
+                (False, [False], False),
+                (False, [False], False),
+                (False, [False], False)
+            ],
+            dtype=zz.dtype
+        )
+        assert_equal(res.dtype, expected.dtype)
+        assert_equal(res, expected)
+        assert_equal(res.mask, expected.mask)
+
+
+class TestJoinBy:
+    def _create_arrays(self):
+        a = np.array(list(zip(np.arange(10), np.arange(50, 60),
+                                   np.arange(100, 110))),
+                          dtype=[('a', int), ('b', int), ('c', int)])
+        b = np.array(list(zip(np.arange(5, 15), np.arange(65, 75),
+                                   np.arange(100, 110))),
+                          dtype=[('a', int), ('b', int), ('d', int)])
+        return a, b
+
+    def test_inner_join(self):
+        # Basic test of join_by
+        a, b = self._create_arrays()
+        test = join_by('a', a, b, jointype='inner')
+        control = np.array([(5, 55, 65, 105, 100), (6, 56, 66, 106, 101),
+                            (7, 57, 67, 107, 102), (8, 58, 68, 108, 103),
+                            (9, 59, 69, 109, 104)],
+                           dtype=[('a', int), ('b1', int), ('b2', int),
+                                  ('c', int), ('d', int)])
+        assert_equal(test, control)
+
+    def test_join(self):
+        a, b = self._create_arrays()
+        # Fixme, this test is broken
+        #test = join_by(('a', 'b'), a, b)
+        #control = np.array([(5, 55, 105, 100), (6, 56, 106, 101),
+        #                    (7, 57, 107, 102), (8, 58, 108, 103),
+        #                    (9, 59, 109, 104)],
+        #                   dtype=[('a', int), ('b', int),
+        #                          ('c', int), ('d', int)])
+        #assert_equal(test, control)
+        join_by(('a', 'b'), a, b)
+        np.array([(5, 55, 105, 100), (6, 56, 106, 101),
+                  (7, 57, 107, 102), (8, 58, 108, 103),
+                  (9, 59, 109, 104)],
+                  dtype=[('a', int), ('b', int),
+                         ('c', int), ('d', int)])
+
+    def test_join_subdtype(self):
+        # tests the bug in https://stackoverflow.com/q/44769632/102441
+        foo = np.array([(1,)],
+                       dtype=[('key', int)])
+        bar = np.array([(1, np.array([1, 2, 3]))],
+                       dtype=[('key', int), ('value', 'uint16', 3)])
+        res = join_by('key', foo, bar)
+        assert_equal(res, bar.view(ma.MaskedArray))
+
+    def test_outer_join(self):
+        a, b = self._create_arrays()
+        test = join_by(('a', 'b'), a, b, 'outer')
+        control = ma.array([(0, 50, 100, -1), (1, 51, 101, -1),
+                            (2, 52, 102, -1), (3, 53, 103, -1),
+                            (4, 54, 104, -1), (5, 55, 105, -1),
+                            (5, 65, -1, 100), (6, 56, 106, -1),
+                            (6, 66, -1, 101), (7, 57, 107, -1),
+                            (7, 67, -1, 102), (8, 58, 108, -1),
+                            (8, 68, -1, 103), (9, 59, 109, -1),
+                            (9, 69, -1, 104), (10, 70, -1, 105),
+                            (11, 71, -1, 106), (12, 72, -1, 107),
+                            (13, 73, -1, 108), (14, 74, -1, 109)],
+                           mask=[(0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 1, 0), (0, 0, 0, 1),
+                                 (0, 0, 1, 0), (0, 0, 0, 1),
+                                 (0, 0, 1, 0), (0, 0, 0, 1),
+                                 (0, 0, 1, 0), (0, 0, 0, 1),
+                                 (0, 0, 1, 0), (0, 0, 1, 0),
+                                 (0, 0, 1, 0), (0, 0, 1, 0),
+                                 (0, 0, 1, 0), (0, 0, 1, 0)],
+                           dtype=[('a', int), ('b', int),
+                                  ('c', int), ('d', int)])
+        assert_equal(test, control)
+
+    def test_leftouter_join(self):
+        a, b = self._create_arrays()
+        test = join_by(('a', 'b'), a, b, 'leftouter')
+        control = ma.array([(0, 50, 100, -1), (1, 51, 101, -1),
+                            (2, 52, 102, -1), (3, 53, 103, -1),
+                            (4, 54, 104, -1), (5, 55, 105, -1),
+                            (6, 56, 106, -1), (7, 57, 107, -1),
+                            (8, 58, 108, -1), (9, 59, 109, -1)],
+                           mask=[(0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1),
+                                 (0, 0, 0, 1), (0, 0, 0, 1)],
+                           dtype=[('a', int), ('b', int), ('c', int), ('d', int)])
+        assert_equal(test, control)
+
+    def test_different_field_order(self):
+        # gh-8940
+        a = np.zeros(3, dtype=[('a', 'i4'), ('b', 'f4'), ('c', 'u1')])
+        b = np.ones(3, dtype=[('c', 'u1'), ('b', 'f4'), ('a', 'i4')])
+        # this should not give a FutureWarning:
+        j = join_by(['c', 'b'], a, b, jointype='inner', usemask=False)
+        assert_equal(j.dtype.names, ['b', 'c', 'a1', 'a2'])
+
+    def test_duplicate_keys(self):
+        a = np.zeros(3, dtype=[('a', 'i4'), ('b', 'f4'), ('c', 'u1')])
+        b = np.ones(3, dtype=[('c', 'u1'), ('b', 'f4'), ('a', 'i4')])
+        assert_raises(ValueError, join_by, ['a', 'b', 'b'], a, b)
+
+    def test_same_name_different_dtypes_key(self):
+        a_dtype = np.dtype([('key', 'S5'), ('value', '<f4')])
+        b_dtype = np.dtype([('key', 'S10'), ('value', '<f4')])
+        expected_dtype = np.dtype([
+            ('key', 'S10'), ('value1', '<f4'), ('value2', '<f4')])
+
+        a = np.array([('Sarah',  8.0), ('John', 6.0)], dtype=a_dtype)
+        b = np.array([('Sarah', 10.0), ('John', 7.0)], dtype=b_dtype)
+        res = join_by('key', a, b)
+
+        assert_equal(res.dtype, expected_dtype)
+
+    def test_same_name_different_dtypes(self):
+        # gh-9338
+        a_dtype = np.dtype([('key', 'S10'), ('value', '<f4')])
+        b_dtype = np.dtype([('key', 'S10'), ('value', '<f8')])
+        expected_dtype = np.dtype([
+            ('key', '|S10'), ('value1', '<f4'), ('value2', '<f8')])
+
+        a = np.array([('Sarah',  8.0), ('John', 6.0)], dtype=a_dtype)
+        b = np.array([('Sarah', 10.0), ('John', 7.0)], dtype=b_dtype)
+        res = join_by('key', a, b)
+
+        assert_equal(res.dtype, expected_dtype)
+
+    def test_subarray_key(self):
+        a_dtype = np.dtype([('pos', int, 3), ('f', '<f4')])
+        a = np.array([([1, 1, 1], np.pi), ([1, 2, 3], 0.0)], dtype=a_dtype)
+
+        b_dtype = np.dtype([('pos', int, 3), ('g', '<f4')])
+        b = np.array([([1, 1, 1], 3), ([3, 2, 1], 0.0)], dtype=b_dtype)
+
+        expected_dtype = np.dtype([('pos', int, 3), ('f', '<f4'), ('g', '<f4')])
+        expected = np.array([([1, 1, 1], np.pi, 3)], dtype=expected_dtype)
+
+        res = join_by('pos', a, b)
+        assert_equal(res.dtype, expected_dtype)
+        assert_equal(res, expected)
+
+    def test_padded_dtype(self):
+        dt = np.dtype('i1,f4', align=True)
+        dt.names = ('k', 'v')
+        assert_(len(dt.descr), 3)  # padding field is inserted
+
+        a = np.array([(1, 3), (3, 2)], dt)
+        b = np.array([(1, 1), (2, 2)], dt)
+        res = join_by('k', a, b)
+
+        # no padding fields remain
+        expected_dtype = np.dtype([
+            ('k', 'i1'), ('v1', 'f4'), ('v2', 'f4')
+        ])
+
+        assert_equal(res.dtype, expected_dtype)
+
+
+class TestJoinBy2:
+    @classmethod
+    def setup_method(cls):
+        cls.a = np.array(list(zip(np.arange(10), np.arange(50, 60),
+                                  np.arange(100, 110))),
+                         dtype=[('a', int), ('b', int), ('c', int)])
+        cls.b = np.array(list(zip(np.arange(10), np.arange(65, 75),
+                                  np.arange(100, 110))),
+                         dtype=[('a', int), ('b', int), ('d', int)])
+
+    def test_no_r1postfix(self):
+        # Basic test of join_by no_r1postfix
+        a, b = self.a, self.b
+
+        test = join_by(
+            'a', a, b, r1postfix='', r2postfix='2', jointype='inner')
+        control = np.array([(0, 50, 65, 100, 100), (1, 51, 66, 101, 101),
+                            (2, 52, 67, 102, 102), (3, 53, 68, 103, 103),
+                            (4, 54, 69, 104, 104), (5, 55, 70, 105, 105),
+                            (6, 56, 71, 106, 106), (7, 57, 72, 107, 107),
+                            (8, 58, 73, 108, 108), (9, 59, 74, 109, 109)],
+                           dtype=[('a', int), ('b', int), ('b2', int),
+                                  ('c', int), ('d', int)])
+        assert_equal(test, control)
+
+    def test_no_postfix(self):
+        assert_raises(ValueError, join_by, 'a', self.a, self.b,
+                      r1postfix='', r2postfix='')
+
+    def test_no_r2postfix(self):
+        # Basic test of join_by no_r2postfix
+        a, b = self.a, self.b
+
+        test = join_by(
+            'a', a, b, r1postfix='1', r2postfix='', jointype='inner')
+        control = np.array([(0, 50, 65, 100, 100), (1, 51, 66, 101, 101),
+                            (2, 52, 67, 102, 102), (3, 53, 68, 103, 103),
+                            (4, 54, 69, 104, 104), (5, 55, 70, 105, 105),
+                            (6, 56, 71, 106, 106), (7, 57, 72, 107, 107),
+                            (8, 58, 73, 108, 108), (9, 59, 74, 109, 109)],
+                           dtype=[('a', int), ('b1', int), ('b', int),
+                                  ('c', int), ('d', int)])
+        assert_equal(test, control)
+
+    def test_two_keys_two_vars(self):
+        a = np.array(list(zip(np.tile([10, 11], 5), np.repeat(np.arange(5), 2),
+                              np.arange(50, 60), np.arange(10, 20))),
+                     dtype=[('k', int), ('a', int), ('b', int), ('c', int)])
+
+        b = np.array(list(zip(np.tile([10, 11], 5), np.repeat(np.arange(5), 2),
+                              np.arange(65, 75), np.arange(0, 10))),
+                     dtype=[('k', int), ('a', int), ('b', int), ('c', int)])
+
+        control = np.array([(10, 0, 50, 65, 10, 0), (11, 0, 51, 66, 11, 1),
+                            (10, 1, 52, 67, 12, 2), (11, 1, 53, 68, 13, 3),
+                            (10, 2, 54, 69, 14, 4), (11, 2, 55, 70, 15, 5),
+                            (10, 3, 56, 71, 16, 6), (11, 3, 57, 72, 17, 7),
+                            (10, 4, 58, 73, 18, 8), (11, 4, 59, 74, 19, 9)],
+                           dtype=[('k', int), ('a', int), ('b1', int),
+                                  ('b2', int), ('c1', int), ('c2', int)])
+        test = join_by(
+            ['a', 'k'], a, b, r1postfix='1', r2postfix='2', jointype='inner')
+        assert_equal(test.dtype, control.dtype)
+        assert_equal(test, control)
+
+
+class TestAppendFieldsObj:
+    """
+    Test append_fields with arrays containing objects
+    """
+    # https://github.com/numpy/numpy/issues/2346
+
+    def test_append_to_objects(self):
+        "Test append_fields when the base array contains objects"
+        from datetime import date
+        obj = date(2000, 1, 1)
+        x = np.array([(obj, 1.), (obj, 2.)],
+                      dtype=[('A', object), ('B', float)])
+        y = np.array([10, 20], dtype=int)
+        test = append_fields(x, 'C', data=y, usemask=False)
+        control = np.array([(obj, 1.0, 10), (obj, 2.0, 20)],
+                           dtype=[('A', object), ('B', float), ('C', int)])
+        assert_equal(test, control)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..2ab0c2637b2cfb06e6e8cbd4a6321d0ef7f268e6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_regression.py
@@ -0,0 +1,231 @@
+import os
+
+import numpy as np
+from numpy.testing import (
+    _assert_valid_refcount,
+    assert_,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+
+class TestRegression:
+    def test_poly1d(self):
+        # Ticket #28
+        assert_equal(np.poly1d([1]) - np.poly1d([1, 0]),
+                     np.poly1d([-1, 1]))
+
+    def test_cov_parameters(self):
+        # Ticket #91
+        x = np.random.random((3, 3))
+        y = x.copy()
+        np.cov(x, rowvar=True)
+        np.cov(y, rowvar=False)
+        assert_array_equal(x, y)
+
+    def test_mem_digitize(self):
+        # Ticket #95
+        for i in range(100):
+            np.digitize([1, 2, 3, 4], [1, 3])
+            np.digitize([0, 1, 2, 3, 4], [1, 3])
+
+    def test_unique_zero_sized(self):
+        # Ticket #205
+        assert_array_equal([], np.unique(np.array([])))
+
+    def test_mem_vectorise(self):
+        # Ticket #325
+        vt = np.vectorize(lambda *args: args)
+        vt(np.zeros((1, 2, 1)), np.zeros((2, 1, 1)), np.zeros((1, 1, 2)))
+        vt(np.zeros((1, 2, 1)), np.zeros((2, 1, 1)), np.zeros((1,
+           1, 2)), np.zeros((2, 2)))
+
+    def test_mgrid_single_element(self):
+        # Ticket #339
+        assert_array_equal(np.mgrid[0:0:1j], [0])
+        assert_array_equal(np.mgrid[0:0], [])
+
+    def test_refcount_vectorize(self):
+        # Ticket #378
+        def p(x, y):
+            return 123
+        v = np.vectorize(p)
+        _assert_valid_refcount(v)
+
+    def test_poly1d_nan_roots(self):
+        # Ticket #396
+        p = np.poly1d([np.nan, np.nan, 1], r=False)
+        assert_raises(np.linalg.LinAlgError, getattr, p, "r")
+
+    def test_mem_polymul(self):
+        # Ticket #448
+        np.polymul([], [1.])
+
+    def test_mem_string_concat(self):
+        # Ticket #469
+        x = np.array([])
+        np.append(x, 'asdasd\tasdasd')
+
+    def test_poly_div(self):
+        # Ticket #553
+        u = np.poly1d([1, 2, 3])
+        v = np.poly1d([1, 2, 3, 4, 5])
+        q, r = np.polydiv(u, v)
+        assert_equal(q * v + r, u)
+
+    def test_poly_eq(self):
+        # Ticket #554
+        x = np.poly1d([1, 2, 3])
+        y = np.poly1d([3, 4])
+        assert_(x != y)
+        assert_(x == x)
+
+    def test_polyfit_build(self):
+        # Ticket #628
+        ref = [-1.06123820e-06, 5.70886914e-04, -1.13822012e-01,
+               9.95368241e+00, -3.14526520e+02]
+        x = [90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103,
+             104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115,
+             116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 129,
+             130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141,
+             146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157,
+             158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169,
+             170, 171, 172, 173, 174, 175, 176]
+        y = [9.0, 3.0, 7.0, 4.0, 4.0, 8.0, 6.0, 11.0, 9.0, 8.0, 11.0, 5.0,
+             6.0, 5.0, 9.0, 8.0, 6.0, 10.0, 6.0, 10.0, 7.0, 6.0, 6.0, 6.0,
+             13.0, 4.0, 9.0, 11.0, 4.0, 5.0, 8.0, 5.0, 7.0, 7.0, 6.0, 12.0,
+             7.0, 7.0, 9.0, 4.0, 12.0, 6.0, 6.0, 4.0, 3.0, 9.0, 8.0, 8.0,
+             6.0, 7.0, 9.0, 10.0, 6.0, 8.0, 4.0, 7.0, 7.0, 10.0, 8.0, 8.0,
+             6.0, 3.0, 8.0, 4.0, 5.0, 7.0, 8.0, 6.0, 6.0, 4.0, 12.0, 9.0,
+             8.0, 8.0, 8.0, 6.0, 7.0, 4.0, 4.0, 5.0, 7.0]
+        tested = np.polyfit(x, y, 4)
+        assert_array_almost_equal(ref, tested)
+
+    def test_polydiv_type(self):
+        # Make polydiv work for complex types
+        msg = "Wrong type, should be complex"
+        x = np.ones(3, dtype=complex)
+        q, r = np.polydiv(x, x)
+        assert_(q.dtype == complex, msg)
+        msg = "Wrong type, should be float"
+        x = np.ones(3, dtype=int)
+        q, r = np.polydiv(x, x)
+        assert_(q.dtype == float, msg)
+
+    def test_histogramdd_too_many_bins(self):
+        # Ticket 928.
+        assert_raises(ValueError, np.histogramdd, np.ones((1, 10)), bins=2**10)
+
+    def test_polyint_type(self):
+        # Ticket #944
+        msg = "Wrong type, should be complex"
+        x = np.ones(3, dtype=complex)
+        assert_(np.polyint(x).dtype == complex, msg)
+        msg = "Wrong type, should be float"
+        x = np.ones(3, dtype=int)
+        assert_(np.polyint(x).dtype == float, msg)
+
+    def test_ndenumerate_crash(self):
+        # Ticket 1140
+        # Shouldn't crash:
+        list(np.ndenumerate(np.array([[]])))
+
+    def test_large_fancy_indexing(self):
+        # Large enough to fail on 64-bit.
+        nbits = np.dtype(np.intp).itemsize * 8
+        thesize = int((2**nbits)**(1.0 / 5.0) + 1)
+
+        def dp():
+            n = 3
+            a = np.ones((n,) * 5)
+            i = np.random.randint(0, n, size=thesize)
+            a[np.ix_(i, i, i, i, i)] = 0
+
+        def dp2():
+            n = 3
+            a = np.ones((n,) * 5)
+            i = np.random.randint(0, n, size=thesize)
+            a[np.ix_(i, i, i, i, i)]
+
+        assert_raises(ValueError, dp)
+        assert_raises(ValueError, dp2)
+
+    def test_void_coercion(self):
+        dt = np.dtype([('a', 'f4'), ('b', 'i4')])
+        x = np.zeros((1,), dt)
+        assert_(np.r_[x, x].dtype == dt)
+
+    def test_include_dirs(self):
+        # As a sanity check, just test that get_include
+        # includes something reasonable.  Somewhat
+        # related to ticket #1405.
+        include_dirs = [np.get_include()]
+        for path in include_dirs:
+            assert_(isinstance(path, str))
+            assert_(path != '')
+
+    def test_polyder_return_type(self):
+        # Ticket #1249
+        assert_(isinstance(np.polyder(np.poly1d([1]), 0), np.poly1d))
+        assert_(isinstance(np.polyder([1], 0), np.ndarray))
+        assert_(isinstance(np.polyder(np.poly1d([1]), 1), np.poly1d))
+        assert_(isinstance(np.polyder([1], 1), np.ndarray))
+
+    def test_append_fields_dtype_list(self):
+        # Ticket #1676
+        from numpy.lib.recfunctions import append_fields
+
+        base = np.array([1, 2, 3], dtype=np.int32)
+        names = ['a', 'b', 'c']
+        data = np.eye(3).astype(np.int32)
+        dlist = [np.float64, np.int32, np.int32]
+        try:
+            append_fields(base, names, data, dlist)
+        except Exception:
+            raise AssertionError
+
+    def test_loadtxt_fields_subarrays(self):
+        # For ticket #1936
+        from io import StringIO
+
+        dt = [("a", 'u1', 2), ("b", 'u1', 2)]
+        x = np.loadtxt(StringIO("0 1 2 3"), dtype=dt)
+        assert_equal(x, np.array([((0, 1), (2, 3))], dtype=dt))
+
+        dt = [("a", [("a", 'u1', (1, 3)), ("b", 'u1')])]
+        x = np.loadtxt(StringIO("0 1 2 3"), dtype=dt)
+        assert_equal(x, np.array([(((0, 1, 2), 3),)], dtype=dt))
+
+        dt = [("a", 'u1', (2, 2))]
+        x = np.loadtxt(StringIO("0 1 2 3"), dtype=dt)
+        assert_equal(x, np.array([(((0, 1), (2, 3)),)], dtype=dt))
+
+        dt = [("a", 'u1', (2, 3, 2))]
+        x = np.loadtxt(StringIO("0 1 2 3 4 5 6 7 8 9 10 11"), dtype=dt)
+        data = [((((0, 1), (2, 3), (4, 5)), ((6, 7), (8, 9), (10, 11))),)]
+        assert_equal(x, np.array(data, dtype=dt))
+
+    def test_nansum_with_boolean(self):
+        # gh-2978
+        a = np.zeros(2, dtype=bool)
+        try:
+            np.nansum(a)
+        except Exception:
+            raise AssertionError
+
+    def test_py3_compat(self):
+        # gh-2561
+        # Test if the oldstyle class test is bypassed in python3
+        class C:
+            """Old-style class in python2, normal class in python3"""
+            pass
+
+        out = open(os.devnull, 'w')
+        try:
+            np.info(C(), output=out)
+        except AttributeError:
+            raise AssertionError
+        finally:
+            out.close()
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_shape_base.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_shape_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..07de20f6ccde4beb25f61e8145651139dda78c0f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_shape_base.py
@@ -0,0 +1,813 @@
+import functools
+import sys
+
+import pytest
+
+import numpy as np
+from numpy import (
+    apply_along_axis,
+    apply_over_axes,
+    array_split,
+    column_stack,
+    dsplit,
+    dstack,
+    expand_dims,
+    hsplit,
+    kron,
+    put_along_axis,
+    split,
+    take_along_axis,
+    tile,
+    vsplit,
+)
+from numpy.exceptions import AxisError
+from numpy.testing import assert_, assert_array_equal, assert_equal, assert_raises
+
+IS_64BIT = sys.maxsize > 2**32
+
+
+def _add_keepdims(func):
+    """ hack in keepdims behavior into a function taking an axis """
+    @functools.wraps(func)
+    def wrapped(a, axis, **kwargs):
+        res = func(a, axis=axis, **kwargs)
+        if axis is None:
+            axis = 0  # res is now a scalar, so we can insert this anywhere
+        return np.expand_dims(res, axis=axis)
+    return wrapped
+
+
+class TestTakeAlongAxis:
+    def test_argequivalent(self):
+        """ Test it translates from arg<func> to <func> """
+        from numpy.random import rand
+        a = rand(3, 4, 5)
+
+        funcs = [
+            (np.sort, np.argsort, {}),
+            (_add_keepdims(np.min), _add_keepdims(np.argmin), {}),
+            (_add_keepdims(np.max), _add_keepdims(np.argmax), {}),
+            #(np.partition, np.argpartition, dict(kth=2)),
+        ]
+
+        for func, argfunc, kwargs in funcs:
+            for axis in list(range(a.ndim)) + [None]:
+                a_func = func(a, axis=axis, **kwargs)
+                ai_func = argfunc(a, axis=axis, **kwargs)
+                assert_equal(a_func, take_along_axis(a, ai_func, axis=axis))
+
+    def test_invalid(self):
+        """ Test it errors when indices has too few dimensions """
+        a = np.ones((10, 10))
+        ai = np.ones((10, 2), dtype=np.intp)
+
+        # sanity check
+        take_along_axis(a, ai, axis=1)
+
+        # not enough indices
+        assert_raises(ValueError, take_along_axis, a, np.array(1), axis=1)
+        # bool arrays not allowed
+        assert_raises(IndexError, take_along_axis, a, ai.astype(bool), axis=1)
+        # float arrays not allowed
+        assert_raises(IndexError, take_along_axis, a, ai.astype(float), axis=1)
+        # invalid axis
+        assert_raises(AxisError, take_along_axis, a, ai, axis=10)
+        # invalid indices
+        assert_raises(ValueError, take_along_axis, a, ai, axis=None)
+
+    def test_empty(self):
+        """ Test everything is ok with empty results, even with inserted dims """
+        a = np.ones((3, 4, 5))
+        ai = np.ones((3, 0, 5), dtype=np.intp)
+
+        actual = take_along_axis(a, ai, axis=1)
+        assert_equal(actual.shape, ai.shape)
+
+    def test_broadcast(self):
+        """ Test that non-indexing dimensions are broadcast in both directions """
+        a = np.ones((3, 4, 1))
+        ai = np.ones((1, 2, 5), dtype=np.intp)
+        actual = take_along_axis(a, ai, axis=1)
+        assert_equal(actual.shape, (3, 2, 5))
+
+
+class TestPutAlongAxis:
+    def test_replace_max(self):
+        a_base = np.array([[10, 30, 20], [60, 40, 50]])
+
+        for axis in list(range(a_base.ndim)) + [None]:
+            # we mutate this in the loop
+            a = a_base.copy()
+
+            # replace the max with a small value
+            i_max = _add_keepdims(np.argmax)(a, axis=axis)
+            put_along_axis(a, i_max, -99, axis=axis)
+
+            # find the new minimum, which should max
+            i_min = _add_keepdims(np.argmin)(a, axis=axis)
+
+            assert_equal(i_min, i_max)
+
+    def test_broadcast(self):
+        """ Test that non-indexing dimensions are broadcast in both directions """
+        a = np.ones((3, 4, 1))
+        ai = np.arange(10, dtype=np.intp).reshape((1, 2, 5)) % 4
+        put_along_axis(a, ai, 20, axis=1)
+        assert_equal(take_along_axis(a, ai, axis=1), 20)
+
+    def test_invalid(self):
+        """ Test invalid inputs """
+        a_base = np.array([[10, 30, 20], [60, 40, 50]])
+        indices = np.array([[0], [1]])
+        values = np.array([[2], [1]])
+
+        # sanity check
+        a = a_base.copy()
+        put_along_axis(a, indices, values, axis=0)
+        assert np.all(a == [[2, 2, 2], [1, 1, 1]])
+
+        # invalid indices
+        a = a_base.copy()
+        with assert_raises(ValueError) as exc:
+            put_along_axis(a, indices, values, axis=None)
+        assert "single dimension" in str(exc.exception)
+
+
+class TestApplyAlongAxis:
+    def test_simple(self):
+        a = np.ones((20, 10), 'd')
+        assert_array_equal(
+            apply_along_axis(len, 0, a), len(a) * np.ones(a.shape[1]))
+
+    def test_simple101(self):
+        a = np.ones((10, 101), 'd')
+        assert_array_equal(
+            apply_along_axis(len, 0, a), len(a) * np.ones(a.shape[1]))
+
+    def test_3d(self):
+        a = np.arange(27).reshape((3, 3, 3))
+        assert_array_equal(apply_along_axis(np.sum, 0, a),
+                           [[27, 30, 33], [36, 39, 42], [45, 48, 51]])
+
+    def test_preserve_subclass(self):
+        def double(row):
+            return row * 2
+
+        class MyNDArray(np.ndarray):
+            pass
+
+        m = np.array([[0, 1], [2, 3]]).view(MyNDArray)
+        expected = np.array([[0, 2], [4, 6]]).view(MyNDArray)
+
+        result = apply_along_axis(double, 0, m)
+        assert_(isinstance(result, MyNDArray))
+        assert_array_equal(result, expected)
+
+        result = apply_along_axis(double, 1, m)
+        assert_(isinstance(result, MyNDArray))
+        assert_array_equal(result, expected)
+
+    def test_subclass(self):
+        class MinimalSubclass(np.ndarray):
+            data = 1
+
+        def minimal_function(array):
+            return array.data
+
+        a = np.zeros((6, 3)).view(MinimalSubclass)
+
+        assert_array_equal(
+            apply_along_axis(minimal_function, 0, a), np.array([1, 1, 1])
+        )
+
+    def test_scalar_array(self, cls=np.ndarray):
+        a = np.ones((6, 3)).view(cls)
+        res = apply_along_axis(np.sum, 0, a)
+        assert_(isinstance(res, cls))
+        assert_array_equal(res, np.array([6, 6, 6]).view(cls))
+
+    def test_0d_array(self, cls=np.ndarray):
+        def sum_to_0d(x):
+            """ Sum x, returning a 0d array of the same class """
+            assert_equal(x.ndim, 1)
+            return np.squeeze(np.sum(x, keepdims=True))
+        a = np.ones((6, 3)).view(cls)
+        res = apply_along_axis(sum_to_0d, 0, a)
+        assert_(isinstance(res, cls))
+        assert_array_equal(res, np.array([6, 6, 6]).view(cls))
+
+        res = apply_along_axis(sum_to_0d, 1, a)
+        assert_(isinstance(res, cls))
+        assert_array_equal(res, np.array([3, 3, 3, 3, 3, 3]).view(cls))
+
+    def test_axis_insertion(self, cls=np.ndarray):
+        def f1to2(x):
+            """produces an asymmetric non-square matrix from x"""
+            assert_equal(x.ndim, 1)
+            return (x[::-1] * x[1:, None]).view(cls)
+
+        a2d = np.arange(6 * 3).reshape((6, 3))
+
+        # 2d insertion along first axis
+        actual = apply_along_axis(f1to2, 0, a2d)
+        expected = np.stack([
+            f1to2(a2d[:, i]) for i in range(a2d.shape[1])
+        ], axis=-1).view(cls)
+        assert_equal(type(actual), type(expected))
+        assert_equal(actual, expected)
+
+        # 2d insertion along last axis
+        actual = apply_along_axis(f1to2, 1, a2d)
+        expected = np.stack([
+            f1to2(a2d[i, :]) for i in range(a2d.shape[0])
+        ], axis=0).view(cls)
+        assert_equal(type(actual), type(expected))
+        assert_equal(actual, expected)
+
+        # 3d insertion along middle axis
+        a3d = np.arange(6 * 5 * 3).reshape((6, 5, 3))
+
+        actual = apply_along_axis(f1to2, 1, a3d)
+        expected = np.stack([
+            np.stack([
+                f1to2(a3d[i, :, j]) for i in range(a3d.shape[0])
+            ], axis=0)
+            for j in range(a3d.shape[2])
+        ], axis=-1).view(cls)
+        assert_equal(type(actual), type(expected))
+        assert_equal(actual, expected)
+
+    def test_subclass_preservation(self):
+        class MinimalSubclass(np.ndarray):
+            pass
+        self.test_scalar_array(MinimalSubclass)
+        self.test_0d_array(MinimalSubclass)
+        self.test_axis_insertion(MinimalSubclass)
+
+    def test_axis_insertion_ma(self):
+        def f1to2(x):
+            """produces an asymmetric non-square matrix from x"""
+            assert_equal(x.ndim, 1)
+            res = x[::-1] * x[1:, None]
+            return np.ma.masked_where(res % 5 == 0, res)
+        a = np.arange(6 * 3).reshape((6, 3))
+        res = apply_along_axis(f1to2, 0, a)
+        assert_(isinstance(res, np.ma.masked_array))
+        assert_equal(res.ndim, 3)
+        assert_array_equal(res[:, :, 0].mask, f1to2(a[:, 0]).mask)
+        assert_array_equal(res[:, :, 1].mask, f1to2(a[:, 1]).mask)
+        assert_array_equal(res[:, :, 2].mask, f1to2(a[:, 2]).mask)
+
+    def test_tuple_func1d(self):
+        def sample_1d(x):
+            return x[1], x[0]
+        res = np.apply_along_axis(sample_1d, 1, np.array([[1, 2], [3, 4]]))
+        assert_array_equal(res, np.array([[2, 1], [4, 3]]))
+
+    def test_empty(self):
+        # can't apply_along_axis when there's no chance to call the function
+        def never_call(x):
+            assert_(False)  # should never be reached
+
+        a = np.empty((0, 0))
+        assert_raises(ValueError, np.apply_along_axis, never_call, 0, a)
+        assert_raises(ValueError, np.apply_along_axis, never_call, 1, a)
+
+        # but it's sometimes ok with some non-zero dimensions
+        def empty_to_1(x):
+            assert_(len(x) == 0)
+            return 1
+
+        a = np.empty((10, 0))
+        actual = np.apply_along_axis(empty_to_1, 1, a)
+        assert_equal(actual, np.ones(10))
+        assert_raises(ValueError, np.apply_along_axis, empty_to_1, 0, a)
+
+    def test_with_iterable_object(self):
+        # from issue 5248
+        d = np.array([
+            [{1, 11}, {2, 22}, {3, 33}],
+            [{4, 44}, {5, 55}, {6, 66}]
+        ])
+        actual = np.apply_along_axis(lambda a: set.union(*a), 0, d)
+        expected = np.array([{1, 11, 4, 44}, {2, 22, 5, 55}, {3, 33, 6, 66}])
+
+        assert_equal(actual, expected)
+
+        # issue 8642 - assert_equal doesn't detect this!
+        for i in np.ndindex(actual.shape):
+            assert_equal(type(actual[i]), type(expected[i]))
+
+
+class TestApplyOverAxes:
+    def test_simple(self):
+        a = np.arange(24).reshape(2, 3, 4)
+        aoa_a = apply_over_axes(np.sum, a, [0, 2])
+        assert_array_equal(aoa_a, np.array([[[60], [92], [124]]]))
+
+
+class TestExpandDims:
+    def test_functionality(self):
+        s = (2, 3, 4, 5)
+        a = np.empty(s)
+        for axis in range(-5, 4):
+            b = expand_dims(a, axis)
+            assert_(b.shape[axis] == 1)
+            assert_(np.squeeze(b).shape == s)
+
+    def test_axis_tuple(self):
+        a = np.empty((3, 3, 3))
+        assert np.expand_dims(a, axis=(0, 1, 2)).shape == (1, 1, 1, 3, 3, 3)
+        assert np.expand_dims(a, axis=(0, -1, -2)).shape == (1, 3, 3, 3, 1, 1)
+        assert np.expand_dims(a, axis=(0, 3, 5)).shape == (1, 3, 3, 1, 3, 1)
+        assert np.expand_dims(a, axis=(0, -3, -5)).shape == (1, 1, 3, 1, 3, 3)
+
+    def test_axis_out_of_range(self):
+        s = (2, 3, 4, 5)
+        a = np.empty(s)
+        assert_raises(AxisError, expand_dims, a, -6)
+        assert_raises(AxisError, expand_dims, a, 5)
+
+        a = np.empty((3, 3, 3))
+        assert_raises(AxisError, expand_dims, a, (0, -6))
+        assert_raises(AxisError, expand_dims, a, (0, 5))
+
+    def test_repeated_axis(self):
+        a = np.empty((3, 3, 3))
+        assert_raises(ValueError, expand_dims, a, axis=(1, 1))
+
+    def test_subclasses(self):
+        a = np.arange(10).reshape((2, 5))
+        a = np.ma.array(a, mask=a % 3 == 0)
+
+        expanded = np.expand_dims(a, axis=1)
+        assert_(isinstance(expanded, np.ma.MaskedArray))
+        assert_equal(expanded.shape, (2, 1, 5))
+        assert_equal(expanded.mask.shape, (2, 1, 5))
+
+
+class TestArraySplit:
+    def test_integer_0_split(self):
+        a = np.arange(10)
+        assert_raises(ValueError, array_split, a, 0)
+
+    def test_integer_split(self):
+        a = np.arange(10)
+        res = array_split(a, 1)
+        desired = [np.arange(10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 2)
+        desired = [np.arange(5), np.arange(5, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 3)
+        desired = [np.arange(4), np.arange(4, 7), np.arange(7, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 4)
+        desired = [np.arange(3), np.arange(3, 6), np.arange(6, 8),
+                   np.arange(8, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 5)
+        desired = [np.arange(2), np.arange(2, 4), np.arange(4, 6),
+                   np.arange(6, 8), np.arange(8, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 6)
+        desired = [np.arange(2), np.arange(2, 4), np.arange(4, 6),
+                   np.arange(6, 8), np.arange(8, 9), np.arange(9, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 7)
+        desired = [np.arange(2), np.arange(2, 4), np.arange(4, 6),
+                   np.arange(6, 7), np.arange(7, 8), np.arange(8, 9),
+                   np.arange(9, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 8)
+        desired = [np.arange(2), np.arange(2, 4), np.arange(4, 5),
+                   np.arange(5, 6), np.arange(6, 7), np.arange(7, 8),
+                   np.arange(8, 9), np.arange(9, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 9)
+        desired = [np.arange(2), np.arange(2, 3), np.arange(3, 4),
+                   np.arange(4, 5), np.arange(5, 6), np.arange(6, 7),
+                   np.arange(7, 8), np.arange(8, 9), np.arange(9, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 10)
+        desired = [np.arange(1), np.arange(1, 2), np.arange(2, 3),
+                   np.arange(3, 4), np.arange(4, 5), np.arange(5, 6),
+                   np.arange(6, 7), np.arange(7, 8), np.arange(8, 9),
+                   np.arange(9, 10)]
+        compare_results(res, desired)
+
+        res = array_split(a, 11)
+        desired = [np.arange(1), np.arange(1, 2), np.arange(2, 3),
+                   np.arange(3, 4), np.arange(4, 5), np.arange(5, 6),
+                   np.arange(6, 7), np.arange(7, 8), np.arange(8, 9),
+                   np.arange(9, 10), np.array([])]
+        compare_results(res, desired)
+
+    def test_integer_split_2D_rows(self):
+        a = np.array([np.arange(10), np.arange(10)])
+        res = array_split(a, 3, axis=0)
+        tgt = [np.array([np.arange(10)]), np.array([np.arange(10)]),
+                   np.zeros((0, 10))]
+        compare_results(res, tgt)
+        assert_(a.dtype.type is res[-1].dtype.type)
+
+        # Same thing for manual splits:
+        res = array_split(a, [0, 1], axis=0)
+        tgt = [np.zeros((0, 10)), np.array([np.arange(10)]),
+               np.array([np.arange(10)])]
+        compare_results(res, tgt)
+        assert_(a.dtype.type is res[-1].dtype.type)
+
+    def test_integer_split_2D_cols(self):
+        a = np.array([np.arange(10), np.arange(10)])
+        res = array_split(a, 3, axis=-1)
+        desired = [np.array([np.arange(4), np.arange(4)]),
+                   np.array([np.arange(4, 7), np.arange(4, 7)]),
+                   np.array([np.arange(7, 10), np.arange(7, 10)])]
+        compare_results(res, desired)
+
+    def test_integer_split_2D_default(self):
+        """ This will fail if we change default axis
+        """
+        a = np.array([np.arange(10), np.arange(10)])
+        res = array_split(a, 3)
+        tgt = [np.array([np.arange(10)]), np.array([np.arange(10)]),
+                   np.zeros((0, 10))]
+        compare_results(res, tgt)
+        assert_(a.dtype.type is res[-1].dtype.type)
+        # perhaps should check higher dimensions
+
+    @pytest.mark.skipif(not IS_64BIT, reason="Needs 64bit platform")
+    def test_integer_split_2D_rows_greater_max_int32(self):
+        a = np.broadcast_to([0], (1 << 32, 2))
+        res = array_split(a, 4)
+        chunk = np.broadcast_to([0], (1 << 30, 2))
+        tgt = [chunk] * 4
+        for i in range(len(tgt)):
+            assert_equal(res[i].shape, tgt[i].shape)
+
+    def test_index_split_simple(self):
+        a = np.arange(10)
+        indices = [1, 5, 7]
+        res = array_split(a, indices, axis=-1)
+        desired = [np.arange(0, 1), np.arange(1, 5), np.arange(5, 7),
+                   np.arange(7, 10)]
+        compare_results(res, desired)
+
+    def test_index_split_low_bound(self):
+        a = np.arange(10)
+        indices = [0, 5, 7]
+        res = array_split(a, indices, axis=-1)
+        desired = [np.array([]), np.arange(0, 5), np.arange(5, 7),
+                   np.arange(7, 10)]
+        compare_results(res, desired)
+
+    def test_index_split_high_bound(self):
+        a = np.arange(10)
+        indices = [0, 5, 7, 10, 12]
+        res = array_split(a, indices, axis=-1)
+        desired = [np.array([]), np.arange(0, 5), np.arange(5, 7),
+                   np.arange(7, 10), np.array([]), np.array([])]
+        compare_results(res, desired)
+
+
+class TestSplit:
+    # The split function is essentially the same as array_split,
+    # except that it test if splitting will result in an
+    # equal split.  Only test for this case.
+
+    def test_equal_split(self):
+        a = np.arange(10)
+        res = split(a, 2)
+        desired = [np.arange(5), np.arange(5, 10)]
+        compare_results(res, desired)
+
+    def test_unequal_split(self):
+        a = np.arange(10)
+        assert_raises(ValueError, split, a, 3)
+
+
+class TestColumnStack:
+    def test_non_iterable(self):
+        assert_raises(TypeError, column_stack, 1)
+
+    def test_1D_arrays(self):
+        # example from docstring
+        a = np.array((1, 2, 3))
+        b = np.array((2, 3, 4))
+        expected = np.array([[1, 2],
+                             [2, 3],
+                             [3, 4]])
+        actual = np.column_stack((a, b))
+        assert_equal(actual, expected)
+
+    def test_2D_arrays(self):
+        # same as hstack 2D docstring example
+        a = np.array([[1], [2], [3]])
+        b = np.array([[2], [3], [4]])
+        expected = np.array([[1, 2],
+                             [2, 3],
+                             [3, 4]])
+        actual = np.column_stack((a, b))
+        assert_equal(actual, expected)
+
+    def test_generator(self):
+        with pytest.raises(TypeError, match="arrays to stack must be"):
+            column_stack(np.arange(3) for _ in range(2))
+
+
+class TestDstack:
+    def test_non_iterable(self):
+        assert_raises(TypeError, dstack, 1)
+
+    def test_0D_array(self):
+        a = np.array(1)
+        b = np.array(2)
+        res = dstack([a, b])
+        desired = np.array([[[1, 2]]])
+        assert_array_equal(res, desired)
+
+    def test_1D_array(self):
+        a = np.array([1])
+        b = np.array([2])
+        res = dstack([a, b])
+        desired = np.array([[[1, 2]]])
+        assert_array_equal(res, desired)
+
+    def test_2D_array(self):
+        a = np.array([[1], [2]])
+        b = np.array([[1], [2]])
+        res = dstack([a, b])
+        desired = np.array([[[1, 1]], [[2, 2, ]]])
+        assert_array_equal(res, desired)
+
+    def test_2D_array2(self):
+        a = np.array([1, 2])
+        b = np.array([1, 2])
+        res = dstack([a, b])
+        desired = np.array([[[1, 1], [2, 2]]])
+        assert_array_equal(res, desired)
+
+    def test_generator(self):
+        with pytest.raises(TypeError, match="arrays to stack must be"):
+            dstack(np.arange(3) for _ in range(2))
+
+
+# array_split has more comprehensive test of splitting.
+# only do simple test on hsplit, vsplit, and dsplit
+class TestHsplit:
+    """Only testing for integer splits.
+
+    """
+    def test_non_iterable(self):
+        assert_raises(ValueError, hsplit, 1, 1)
+
+    def test_0D_array(self):
+        a = np.array(1)
+        try:
+            hsplit(a, 2)
+            assert_(0)
+        except ValueError:
+            pass
+
+    def test_1D_array(self):
+        a = np.array([1, 2, 3, 4])
+        res = hsplit(a, 2)
+        desired = [np.array([1, 2]), np.array([3, 4])]
+        compare_results(res, desired)
+
+    def test_2D_array(self):
+        a = np.array([[1, 2, 3, 4],
+                  [1, 2, 3, 4]])
+        res = hsplit(a, 2)
+        desired = [np.array([[1, 2], [1, 2]]), np.array([[3, 4], [3, 4]])]
+        compare_results(res, desired)
+
+
+class TestVsplit:
+    """Only testing for integer splits.
+
+    """
+    def test_non_iterable(self):
+        assert_raises(ValueError, vsplit, 1, 1)
+
+    def test_0D_array(self):
+        a = np.array(1)
+        assert_raises(ValueError, vsplit, a, 2)
+
+    def test_1D_array(self):
+        a = np.array([1, 2, 3, 4])
+        try:
+            vsplit(a, 2)
+            assert_(0)
+        except ValueError:
+            pass
+
+    def test_2D_array(self):
+        a = np.array([[1, 2, 3, 4],
+                  [1, 2, 3, 4]])
+        res = vsplit(a, 2)
+        desired = [np.array([[1, 2, 3, 4]]), np.array([[1, 2, 3, 4]])]
+        compare_results(res, desired)
+
+
+class TestDsplit:
+    # Only testing for integer splits.
+    def test_non_iterable(self):
+        assert_raises(ValueError, dsplit, 1, 1)
+
+    def test_0D_array(self):
+        a = np.array(1)
+        assert_raises(ValueError, dsplit, a, 2)
+
+    def test_1D_array(self):
+        a = np.array([1, 2, 3, 4])
+        assert_raises(ValueError, dsplit, a, 2)
+
+    def test_2D_array(self):
+        a = np.array([[1, 2, 3, 4],
+                  [1, 2, 3, 4]])
+        try:
+            dsplit(a, 2)
+            assert_(0)
+        except ValueError:
+            pass
+
+    def test_3D_array(self):
+        a = np.array([[[1, 2, 3, 4],
+                   [1, 2, 3, 4]],
+                  [[1, 2, 3, 4],
+                   [1, 2, 3, 4]]])
+        res = dsplit(a, 2)
+        desired = [np.array([[[1, 2], [1, 2]], [[1, 2], [1, 2]]]),
+                   np.array([[[3, 4], [3, 4]], [[3, 4], [3, 4]]])]
+        compare_results(res, desired)
+
+
+class TestSqueeze:
+    def test_basic(self):
+        from numpy.random import rand
+
+        a = rand(20, 10, 10, 1, 1)
+        b = rand(20, 1, 10, 1, 20)
+        c = rand(1, 1, 20, 10)
+        assert_array_equal(np.squeeze(a), np.reshape(a, (20, 10, 10)))
+        assert_array_equal(np.squeeze(b), np.reshape(b, (20, 10, 20)))
+        assert_array_equal(np.squeeze(c), np.reshape(c, (20, 10)))
+
+        # Squeezing to 0-dim should still give an ndarray
+        a = [[[1.5]]]
+        res = np.squeeze(a)
+        assert_equal(res, 1.5)
+        assert_equal(res.ndim, 0)
+        assert_equal(type(res), np.ndarray)
+
+
+class TestKron:
+    def test_basic(self):
+        # Using 0-dimensional ndarray
+        a = np.array(1)
+        b = np.array([[1, 2], [3, 4]])
+        k = np.array([[1, 2], [3, 4]])
+        assert_array_equal(np.kron(a, b), k)
+        a = np.array([[1, 2], [3, 4]])
+        b = np.array(1)
+        assert_array_equal(np.kron(a, b), k)
+
+        # Using 1-dimensional ndarray
+        a = np.array([3])
+        b = np.array([[1, 2], [3, 4]])
+        k = np.array([[3, 6], [9, 12]])
+        assert_array_equal(np.kron(a, b), k)
+        a = np.array([[1, 2], [3, 4]])
+        b = np.array([3])
+        assert_array_equal(np.kron(a, b), k)
+
+        # Using 3-dimensional ndarray
+        a = np.array([[[1]], [[2]]])
+        b = np.array([[1, 2], [3, 4]])
+        k = np.array([[[1, 2], [3, 4]], [[2, 4], [6, 8]]])
+        assert_array_equal(np.kron(a, b), k)
+        a = np.array([[1, 2], [3, 4]])
+        b = np.array([[[1]], [[2]]])
+        k = np.array([[[1, 2], [3, 4]], [[2, 4], [6, 8]]])
+        assert_array_equal(np.kron(a, b), k)
+
+    def test_return_type(self):
+        class myarray(np.ndarray):
+            __array_priority__ = 1.0
+
+        a = np.ones([2, 2])
+        ma = myarray(a.shape, a.dtype, a.data)
+        assert_equal(type(kron(a, a)), np.ndarray)
+        assert_equal(type(kron(ma, ma)), myarray)
+        assert_equal(type(kron(a, ma)), myarray)
+        assert_equal(type(kron(ma, a)), myarray)
+
+    @pytest.mark.parametrize(
+        "array_class", [np.asarray, np.asmatrix]
+    )
+    def test_kron_smoke(self, array_class):
+        a = array_class(np.ones([3, 3]))
+        b = array_class(np.ones([3, 3]))
+        k = array_class(np.ones([9, 9]))
+
+        assert_array_equal(np.kron(a, b), k)
+
+    def test_kron_ma(self):
+        x = np.ma.array([[1, 2], [3, 4]], mask=[[0, 1], [1, 0]])
+        k = np.ma.array(np.diag([1, 4, 4, 16]),
+                mask=~np.array(np.identity(4), dtype=bool))
+
+        assert_array_equal(k, np.kron(x, x))
+
+    @pytest.mark.parametrize(
+        "shape_a,shape_b", [
+            ((1, 1), (1, 1)),
+            ((1, 2, 3), (4, 5, 6)),
+            ((2, 2), (2, 2, 2)),
+            ((1, 0), (1, 1)),
+            ((2, 0, 2), (2, 2)),
+            ((2, 0, 0, 2), (2, 0, 2)),
+        ])
+    def test_kron_shape(self, shape_a, shape_b):
+        a = np.ones(shape_a)
+        b = np.ones(shape_b)
+        normalised_shape_a = (1,) * max(0, len(shape_b) - len(shape_a)) + shape_a
+        normalised_shape_b = (1,) * max(0, len(shape_a) - len(shape_b)) + shape_b
+        expected_shape = np.multiply(normalised_shape_a, normalised_shape_b)
+
+        k = np.kron(a, b)
+        assert np.array_equal(
+                k.shape, expected_shape), "Unexpected shape from kron"
+
+
+class TestTile:
+    def test_basic(self):
+        a = np.array([0, 1, 2])
+        b = [[1, 2], [3, 4]]
+        assert_equal(tile(a, 2), [0, 1, 2, 0, 1, 2])
+        assert_equal(tile(a, (2, 2)), [[0, 1, 2, 0, 1, 2], [0, 1, 2, 0, 1, 2]])
+        assert_equal(tile(a, (1, 2)), [[0, 1, 2, 0, 1, 2]])
+        assert_equal(tile(b, 2), [[1, 2, 1, 2], [3, 4, 3, 4]])
+        assert_equal(tile(b, (2, 1)), [[1, 2], [3, 4], [1, 2], [3, 4]])
+        assert_equal(tile(b, (2, 2)), [[1, 2, 1, 2], [3, 4, 3, 4],
+                                       [1, 2, 1, 2], [3, 4, 3, 4]])
+
+    def test_tile_one_repetition_on_array_gh4679(self):
+        a = np.arange(5)
+        b = tile(a, 1)
+        b += 2
+        assert_equal(a, np.arange(5))
+
+    def test_empty(self):
+        a = np.array([[[]]])
+        b = np.array([[], []])
+        c = tile(b, 2).shape
+        d = tile(a, (3, 2, 5)).shape
+        assert_equal(c, (2, 0))
+        assert_equal(d, (3, 2, 0))
+
+    def test_kroncompare(self):
+        from numpy.random import randint
+
+        reps = [(2,), (1, 2), (2, 1), (2, 2), (2, 3, 2), (3, 2)]
+        shape = [(3,), (2, 3), (3, 4, 3), (3, 2, 3), (4, 3, 2, 4), (2, 2)]
+        for s in shape:
+            b = randint(0, 10, size=s)
+            for r in reps:
+                a = np.ones(r, b.dtype)
+                large = tile(b, r)
+                klarge = kron(a, b)
+                assert_equal(large, klarge)
+
+
+class TestMayShareMemory:
+    def test_basic(self):
+        d = np.ones((50, 60))
+        d2 = np.ones((30, 60, 6))
+        assert_(np.may_share_memory(d, d))
+        assert_(np.may_share_memory(d, d[::-1]))
+        assert_(np.may_share_memory(d, d[::2]))
+        assert_(np.may_share_memory(d, d[1:, ::-1]))
+
+        assert_(not np.may_share_memory(d[::-1], d2))
+        assert_(not np.may_share_memory(d[::2], d2))
+        assert_(not np.may_share_memory(d[1:, ::-1], d2))
+        assert_(np.may_share_memory(d2[1:, ::-1], d2))
+
+
+# Utility
+def compare_results(res, desired):
+    """Compare lists of arrays."""
+    for x, y in zip(res, desired, strict=False):
+        assert_array_equal(x, y)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_stride_tricks.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_stride_tricks.py
new file mode 100644
index 0000000000000000000000000000000000000000..8bc93262cf916215eb647f7a6c181a26daa8873c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_stride_tricks.py
@@ -0,0 +1,655 @@
+import pytest
+
+import numpy as np
+from numpy._core._rational_tests import rational
+from numpy.lib._stride_tricks_impl import (
+    _broadcast_shape,
+    as_strided,
+    broadcast_arrays,
+    broadcast_shapes,
+    broadcast_to,
+    sliding_window_view,
+)
+from numpy.testing import (
+    assert_,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+def assert_shapes_correct(input_shapes, expected_shape):
+    # Broadcast a list of arrays with the given input shapes and check the
+    # common output shape.
+
+    inarrays = [np.zeros(s) for s in input_shapes]
+    outarrays = broadcast_arrays(*inarrays)
+    outshapes = [a.shape for a in outarrays]
+    expected = [expected_shape] * len(inarrays)
+    assert_equal(outshapes, expected)
+
+
+def assert_incompatible_shapes_raise(input_shapes):
+    # Broadcast a list of arrays with the given (incompatible) input shapes
+    # and check that they raise a ValueError.
+
+    inarrays = [np.zeros(s) for s in input_shapes]
+    assert_raises(ValueError, broadcast_arrays, *inarrays)
+
+
+def assert_same_as_ufunc(shape0, shape1, transposed=False, flipped=False):
+    # Broadcast two shapes against each other and check that the data layout
+    # is the same as if a ufunc did the broadcasting.
+
+    x0 = np.zeros(shape0, dtype=int)
+    # Note that multiply.reduce's identity element is 1.0, so when shape1==(),
+    # this gives the desired n==1.
+    n = int(np.multiply.reduce(shape1))
+    x1 = np.arange(n).reshape(shape1)
+    if transposed:
+        x0 = x0.T
+        x1 = x1.T
+    if flipped:
+        x0 = x0[::-1]
+        x1 = x1[::-1]
+    # Use the add ufunc to do the broadcasting. Since we're adding 0s to x1, the
+    # result should be exactly the same as the broadcasted view of x1.
+    y = x0 + x1
+    b0, b1 = broadcast_arrays(x0, x1)
+    assert_array_equal(y, b1)
+
+
+def test_same():
+    x = np.arange(10)
+    y = np.arange(10)
+    bx, by = broadcast_arrays(x, y)
+    assert_array_equal(x, bx)
+    assert_array_equal(y, by)
+
+def test_broadcast_kwargs():
+    # ensure that a TypeError is appropriately raised when
+    # np.broadcast_arrays() is called with any keyword
+    # argument other than 'subok'
+    x = np.arange(10)
+    y = np.arange(10)
+
+    with assert_raises_regex(TypeError, 'got an unexpected keyword'):
+        broadcast_arrays(x, y, dtype='float64')
+
+
+def test_one_off():
+    x = np.array([[1, 2, 3]])
+    y = np.array([[1], [2], [3]])
+    bx, by = broadcast_arrays(x, y)
+    bx0 = np.array([[1, 2, 3], [1, 2, 3], [1, 2, 3]])
+    by0 = bx0.T
+    assert_array_equal(bx0, bx)
+    assert_array_equal(by0, by)
+
+
+def test_same_input_shapes():
+    # Check that the final shape is just the input shape.
+
+    data = [
+        (),
+        (1,),
+        (3,),
+        (0, 1),
+        (0, 3),
+        (1, 0),
+        (3, 0),
+        (1, 3),
+        (3, 1),
+        (3, 3),
+    ]
+    for shape in data:
+        input_shapes = [shape]
+        # Single input.
+        assert_shapes_correct(input_shapes, shape)
+        # Double input.
+        input_shapes2 = [shape, shape]
+        assert_shapes_correct(input_shapes2, shape)
+        # Triple input.
+        input_shapes3 = [shape, shape, shape]
+        assert_shapes_correct(input_shapes3, shape)
+
+
+def test_two_compatible_by_ones_input_shapes():
+    # Check that two different input shapes of the same length, but some have
+    # ones, broadcast to the correct shape.
+
+    data = [
+        [[(1,), (3,)], (3,)],
+        [[(1, 3), (3, 3)], (3, 3)],
+        [[(3, 1), (3, 3)], (3, 3)],
+        [[(1, 3), (3, 1)], (3, 3)],
+        [[(1, 1), (3, 3)], (3, 3)],
+        [[(1, 1), (1, 3)], (1, 3)],
+        [[(1, 1), (3, 1)], (3, 1)],
+        [[(1, 0), (0, 0)], (0, 0)],
+        [[(0, 1), (0, 0)], (0, 0)],
+        [[(1, 0), (0, 1)], (0, 0)],
+        [[(1, 1), (0, 0)], (0, 0)],
+        [[(1, 1), (1, 0)], (1, 0)],
+        [[(1, 1), (0, 1)], (0, 1)],
+    ]
+    for input_shapes, expected_shape in data:
+        assert_shapes_correct(input_shapes, expected_shape)
+        # Reverse the input shapes since broadcasting should be symmetric.
+        assert_shapes_correct(input_shapes[::-1], expected_shape)
+
+
+def test_two_compatible_by_prepending_ones_input_shapes():
+    # Check that two different input shapes (of different lengths) broadcast
+    # to the correct shape.
+
+    data = [
+        [[(), (3,)], (3,)],
+        [[(3,), (3, 3)], (3, 3)],
+        [[(3,), (3, 1)], (3, 3)],
+        [[(1,), (3, 3)], (3, 3)],
+        [[(), (3, 3)], (3, 3)],
+        [[(1, 1), (3,)], (1, 3)],
+        [[(1,), (3, 1)], (3, 1)],
+        [[(1,), (1, 3)], (1, 3)],
+        [[(), (1, 3)], (1, 3)],
+        [[(), (3, 1)], (3, 1)],
+        [[(), (0,)], (0,)],
+        [[(0,), (0, 0)], (0, 0)],
+        [[(0,), (0, 1)], (0, 0)],
+        [[(1,), (0, 0)], (0, 0)],
+        [[(), (0, 0)], (0, 0)],
+        [[(1, 1), (0,)], (1, 0)],
+        [[(1,), (0, 1)], (0, 1)],
+        [[(1,), (1, 0)], (1, 0)],
+        [[(), (1, 0)], (1, 0)],
+        [[(), (0, 1)], (0, 1)],
+    ]
+    for input_shapes, expected_shape in data:
+        assert_shapes_correct(input_shapes, expected_shape)
+        # Reverse the input shapes since broadcasting should be symmetric.
+        assert_shapes_correct(input_shapes[::-1], expected_shape)
+
+
+def test_incompatible_shapes_raise_valueerror():
+    # Check that a ValueError is raised for incompatible shapes.
+
+    data = [
+        [(3,), (4,)],
+        [(2, 3), (2,)],
+        [(3,), (3,), (4,)],
+        [(1, 3, 4), (2, 3, 3)],
+    ]
+    for input_shapes in data:
+        assert_incompatible_shapes_raise(input_shapes)
+        # Reverse the input shapes since broadcasting should be symmetric.
+        assert_incompatible_shapes_raise(input_shapes[::-1])
+
+
+def test_same_as_ufunc():
+    # Check that the data layout is the same as if a ufunc did the operation.
+
+    data = [
+        [[(1,), (3,)], (3,)],
+        [[(1, 3), (3, 3)], (3, 3)],
+        [[(3, 1), (3, 3)], (3, 3)],
+        [[(1, 3), (3, 1)], (3, 3)],
+        [[(1, 1), (3, 3)], (3, 3)],
+        [[(1, 1), (1, 3)], (1, 3)],
+        [[(1, 1), (3, 1)], (3, 1)],
+        [[(1, 0), (0, 0)], (0, 0)],
+        [[(0, 1), (0, 0)], (0, 0)],
+        [[(1, 0), (0, 1)], (0, 0)],
+        [[(1, 1), (0, 0)], (0, 0)],
+        [[(1, 1), (1, 0)], (1, 0)],
+        [[(1, 1), (0, 1)], (0, 1)],
+        [[(), (3,)], (3,)],
+        [[(3,), (3, 3)], (3, 3)],
+        [[(3,), (3, 1)], (3, 3)],
+        [[(1,), (3, 3)], (3, 3)],
+        [[(), (3, 3)], (3, 3)],
+        [[(1, 1), (3,)], (1, 3)],
+        [[(1,), (3, 1)], (3, 1)],
+        [[(1,), (1, 3)], (1, 3)],
+        [[(), (1, 3)], (1, 3)],
+        [[(), (3, 1)], (3, 1)],
+        [[(), (0,)], (0,)],
+        [[(0,), (0, 0)], (0, 0)],
+        [[(0,), (0, 1)], (0, 0)],
+        [[(1,), (0, 0)], (0, 0)],
+        [[(), (0, 0)], (0, 0)],
+        [[(1, 1), (0,)], (1, 0)],
+        [[(1,), (0, 1)], (0, 1)],
+        [[(1,), (1, 0)], (1, 0)],
+        [[(), (1, 0)], (1, 0)],
+        [[(), (0, 1)], (0, 1)],
+    ]
+    for input_shapes, expected_shape in data:
+        assert_same_as_ufunc(input_shapes[0], input_shapes[1],
+                             f"Shapes: {input_shapes[0]} {input_shapes[1]}")
+        # Reverse the input shapes since broadcasting should be symmetric.
+        assert_same_as_ufunc(input_shapes[1], input_shapes[0])
+        # Try them transposed, too.
+        assert_same_as_ufunc(input_shapes[0], input_shapes[1], True)
+        # ... and flipped for non-rank-0 inputs in order to test negative
+        # strides.
+        if () not in input_shapes:
+            assert_same_as_ufunc(input_shapes[0], input_shapes[1], False, True)
+            assert_same_as_ufunc(input_shapes[0], input_shapes[1], True, True)
+
+
+def test_broadcast_to_succeeds():
+    data = [
+        [np.array(0), (0,), np.array(0)],
+        [np.array(0), (1,), np.zeros(1)],
+        [np.array(0), (3,), np.zeros(3)],
+        [np.ones(1), (1,), np.ones(1)],
+        [np.ones(1), (2,), np.ones(2)],
+        [np.ones(1), (1, 2, 3), np.ones((1, 2, 3))],
+        [np.arange(3), (3,), np.arange(3)],
+        [np.arange(3), (1, 3), np.arange(3).reshape(1, -1)],
+        [np.arange(3), (2, 3), np.array([[0, 1, 2], [0, 1, 2]])],
+        # test if shape is not a tuple
+        [np.ones(0), 0, np.ones(0)],
+        [np.ones(1), 1, np.ones(1)],
+        [np.ones(1), 2, np.ones(2)],
+        # these cases with size 0 are strange, but they reproduce the behavior
+        # of broadcasting with ufuncs (see test_same_as_ufunc above)
+        [np.ones(1), (0,), np.ones(0)],
+        [np.ones((1, 2)), (0, 2), np.ones((0, 2))],
+        [np.ones((2, 1)), (2, 0), np.ones((2, 0))],
+    ]
+    for input_array, shape, expected in data:
+        actual = broadcast_to(input_array, shape)
+        assert_array_equal(expected, actual)
+
+
+def test_broadcast_to_raises():
+    data = [
+        [(0,), ()],
+        [(1,), ()],
+        [(3,), ()],
+        [(3,), (1,)],
+        [(3,), (2,)],
+        [(3,), (4,)],
+        [(1, 2), (2, 1)],
+        [(1, 1), (1,)],
+        [(1,), -1],
+        [(1,), (-1,)],
+        [(1, 2), (-1, 2)],
+    ]
+    for orig_shape, target_shape in data:
+        arr = np.zeros(orig_shape)
+        assert_raises(ValueError, lambda: broadcast_to(arr, target_shape))
+
+
+def test_broadcast_shape():
+    # tests internal _broadcast_shape
+    # _broadcast_shape is already exercised indirectly by broadcast_arrays
+    # _broadcast_shape is also exercised by the public broadcast_shapes function
+    assert_equal(_broadcast_shape(), ())
+    assert_equal(_broadcast_shape([1, 2]), (2,))
+    assert_equal(_broadcast_shape(np.ones((1, 1))), (1, 1))
+    assert_equal(_broadcast_shape(np.ones((1, 1)), np.ones((3, 4))), (3, 4))
+    assert_equal(_broadcast_shape(*([np.ones((1, 2))] * 32)), (1, 2))
+    assert_equal(_broadcast_shape(*([np.ones((1, 2))] * 100)), (1, 2))
+
+    # regression tests for gh-5862
+    assert_equal(_broadcast_shape(*([np.ones(2)] * 32 + [1])), (2,))
+    bad_args = [np.ones(2)] * 32 + [np.ones(3)] * 32
+    assert_raises(ValueError, lambda: _broadcast_shape(*bad_args))
+
+
+def test_broadcast_shapes_succeeds():
+    # tests public broadcast_shapes
+    data = [
+        [[], ()],
+        [[()], ()],
+        [[(7,)], (7,)],
+        [[(1, 2), (2,)], (1, 2)],
+        [[(1, 1)], (1, 1)],
+        [[(1, 1), (3, 4)], (3, 4)],
+        [[(6, 7), (5, 6, 1), (7,), (5, 1, 7)], (5, 6, 7)],
+        [[(5, 6, 1)], (5, 6, 1)],
+        [[(1, 3), (3, 1)], (3, 3)],
+        [[(1, 0), (0, 0)], (0, 0)],
+        [[(0, 1), (0, 0)], (0, 0)],
+        [[(1, 0), (0, 1)], (0, 0)],
+        [[(1, 1), (0, 0)], (0, 0)],
+        [[(1, 1), (1, 0)], (1, 0)],
+        [[(1, 1), (0, 1)], (0, 1)],
+        [[(), (0,)], (0,)],
+        [[(0,), (0, 0)], (0, 0)],
+        [[(0,), (0, 1)], (0, 0)],
+        [[(1,), (0, 0)], (0, 0)],
+        [[(), (0, 0)], (0, 0)],
+        [[(1, 1), (0,)], (1, 0)],
+        [[(1,), (0, 1)], (0, 1)],
+        [[(1,), (1, 0)], (1, 0)],
+        [[(), (1, 0)], (1, 0)],
+        [[(), (0, 1)], (0, 1)],
+        [[(1,), (3,)], (3,)],
+        [[2, (3, 2)], (3, 2)],
+    ]
+    for input_shapes, target_shape in data:
+        assert_equal(broadcast_shapes(*input_shapes), target_shape)
+
+    assert_equal(broadcast_shapes(*([(1, 2)] * 32)), (1, 2))
+    assert_equal(broadcast_shapes(*([(1, 2)] * 100)), (1, 2))
+
+    # regression tests for gh-5862
+    assert_equal(broadcast_shapes(*([(2,)] * 32)), (2,))
+
+
+def test_broadcast_shapes_raises():
+    # tests public broadcast_shapes
+    data = [
+        [(3,), (4,)],
+        [(2, 3), (2,)],
+        [(3,), (3,), (4,)],
+        [(1, 3, 4), (2, 3, 3)],
+        [(1, 2), (3, 1), (3, 2), (10, 5)],
+        [2, (2, 3)],
+    ]
+    for input_shapes in data:
+        assert_raises(ValueError, lambda: broadcast_shapes(*input_shapes))
+
+    bad_args = [(2,)] * 32 + [(3,)] * 32
+    assert_raises(ValueError, lambda: broadcast_shapes(*bad_args))
+
+
+def test_as_strided():
+    a = np.array([None])
+    a_view = as_strided(a)
+    expected = np.array([None])
+    assert_array_equal(a_view, np.array([None]))
+
+    a = np.array([1, 2, 3, 4])
+    a_view = as_strided(a, shape=(2,), strides=(2 * a.itemsize,))
+    expected = np.array([1, 3])
+    assert_array_equal(a_view, expected)
+
+    a = np.array([1, 2, 3, 4])
+    a_view = as_strided(a, shape=(3, 4), strides=(0, 1 * a.itemsize))
+    expected = np.array([[1, 2, 3, 4], [1, 2, 3, 4], [1, 2, 3, 4]])
+    assert_array_equal(a_view, expected)
+
+    # Regression test for gh-5081
+    dt = np.dtype([('num', 'i4'), ('obj', 'O')])
+    a = np.empty((4,), dtype=dt)
+    a['num'] = np.arange(1, 5)
+    a_view = as_strided(a, shape=(3, 4), strides=(0, a.itemsize))
+    expected_num = [[1, 2, 3, 4]] * 3
+    expected_obj = [[None] * 4] * 3
+    assert_equal(a_view.dtype, dt)
+    assert_array_equal(expected_num, a_view['num'])
+    assert_array_equal(expected_obj, a_view['obj'])
+
+    # Make sure that void types without fields are kept unchanged
+    a = np.empty((4,), dtype='V4')
+    a_view = as_strided(a, shape=(3, 4), strides=(0, a.itemsize))
+    assert_equal(a.dtype, a_view.dtype)
+
+    # Make sure that the only type that could fail is properly handled
+    dt = np.dtype({'names': [''], 'formats': ['V4']})
+    a = np.empty((4,), dtype=dt)
+    a_view = as_strided(a, shape=(3, 4), strides=(0, a.itemsize))
+    assert_equal(a.dtype, a_view.dtype)
+
+    # Custom dtypes should not be lost (gh-9161)
+    r = [rational(i) for i in range(4)]
+    a = np.array(r, dtype=rational)
+    a_view = as_strided(a, shape=(3, 4), strides=(0, a.itemsize))
+    assert_equal(a.dtype, a_view.dtype)
+    assert_array_equal([r] * 3, a_view)
+
+
+class TestSlidingWindowView:
+    def test_1d(self):
+        arr = np.arange(5)
+        arr_view = sliding_window_view(arr, 2)
+        expected = np.array([[0, 1],
+                             [1, 2],
+                             [2, 3],
+                             [3, 4]])
+        assert_array_equal(arr_view, expected)
+
+    def test_2d(self):
+        i, j = np.ogrid[:3, :4]
+        arr = 10 * i + j
+        shape = (2, 2)
+        arr_view = sliding_window_view(arr, shape)
+        expected = np.array([[[[0, 1], [10, 11]],
+                              [[1, 2], [11, 12]],
+                              [[2, 3], [12, 13]]],
+                             [[[10, 11], [20, 21]],
+                              [[11, 12], [21, 22]],
+                              [[12, 13], [22, 23]]]])
+        assert_array_equal(arr_view, expected)
+
+    def test_2d_with_axis(self):
+        i, j = np.ogrid[:3, :4]
+        arr = 10 * i + j
+        arr_view = sliding_window_view(arr, 3, 0)
+        expected = np.array([[[0, 10, 20],
+                              [1, 11, 21],
+                              [2, 12, 22],
+                              [3, 13, 23]]])
+        assert_array_equal(arr_view, expected)
+
+    def test_2d_repeated_axis(self):
+        i, j = np.ogrid[:3, :4]
+        arr = 10 * i + j
+        arr_view = sliding_window_view(arr, (2, 3), (1, 1))
+        expected = np.array([[[[0, 1, 2],
+                               [1, 2, 3]]],
+                             [[[10, 11, 12],
+                               [11, 12, 13]]],
+                             [[[20, 21, 22],
+                               [21, 22, 23]]]])
+        assert_array_equal(arr_view, expected)
+
+    def test_2d_without_axis(self):
+        i, j = np.ogrid[:4, :4]
+        arr = 10 * i + j
+        shape = (2, 3)
+        arr_view = sliding_window_view(arr, shape)
+        expected = np.array([[[[0, 1, 2], [10, 11, 12]],
+                              [[1, 2, 3], [11, 12, 13]]],
+                             [[[10, 11, 12], [20, 21, 22]],
+                              [[11, 12, 13], [21, 22, 23]]],
+                             [[[20, 21, 22], [30, 31, 32]],
+                              [[21, 22, 23], [31, 32, 33]]]])
+        assert_array_equal(arr_view, expected)
+
+    def test_errors(self):
+        i, j = np.ogrid[:4, :4]
+        arr = 10 * i + j
+        with pytest.raises(ValueError, match='cannot contain negative values'):
+            sliding_window_view(arr, (-1, 3))
+        with pytest.raises(
+                ValueError,
+                match='must provide window_shape for all dimensions of `x`'):
+            sliding_window_view(arr, (1,))
+        with pytest.raises(
+                ValueError,
+                match='Must provide matching length window_shape and axis'):
+            sliding_window_view(arr, (1, 3, 4), axis=(0, 1))
+        with pytest.raises(
+                ValueError,
+                match='window shape cannot be larger than input array'):
+            sliding_window_view(arr, (5, 5))
+
+    def test_writeable(self):
+        arr = np.arange(5)
+        view = sliding_window_view(arr, 2, writeable=False)
+        assert_(not view.flags.writeable)
+        with pytest.raises(
+                ValueError,
+                match='assignment destination is read-only'):
+            view[0, 0] = 3
+        view = sliding_window_view(arr, 2, writeable=True)
+        assert_(view.flags.writeable)
+        view[0, 1] = 3
+        assert_array_equal(arr, np.array([0, 3, 2, 3, 4]))
+
+    def test_subok(self):
+        class MyArray(np.ndarray):
+            pass
+
+        arr = np.arange(5).view(MyArray)
+        assert_(not isinstance(sliding_window_view(arr, 2,
+                                                   subok=False),
+                               MyArray))
+        assert_(isinstance(sliding_window_view(arr, 2, subok=True), MyArray))
+        # Default behavior
+        assert_(not isinstance(sliding_window_view(arr, 2), MyArray))
+
+
+def as_strided_writeable():
+    arr = np.ones(10)
+    view = as_strided(arr, writeable=False)
+    assert_(not view.flags.writeable)
+
+    # Check that writeable also is fine:
+    view = as_strided(arr, writeable=True)
+    assert_(view.flags.writeable)
+    view[...] = 3
+    assert_array_equal(arr, np.full_like(arr, 3))
+
+    # Test that things do not break down for readonly:
+    arr.flags.writeable = False
+    view = as_strided(arr, writeable=False)
+    view = as_strided(arr, writeable=True)
+    assert_(not view.flags.writeable)
+
+
+class VerySimpleSubClass(np.ndarray):
+    def __new__(cls, *args, **kwargs):
+        return np.array(*args, subok=True, **kwargs).view(cls)
+
+
+class SimpleSubClass(VerySimpleSubClass):
+    def __new__(cls, *args, **kwargs):
+        self = np.array(*args, subok=True, **kwargs).view(cls)
+        self.info = 'simple'
+        return self
+
+    def __array_finalize__(self, obj):
+        self.info = getattr(obj, 'info', '') + ' finalized'
+
+
+def test_subclasses():
+    # test that subclass is preserved only if subok=True
+    a = VerySimpleSubClass([1, 2, 3, 4])
+    assert_(type(a) is VerySimpleSubClass)
+    a_view = as_strided(a, shape=(2,), strides=(2 * a.itemsize,))
+    assert_(type(a_view) is np.ndarray)
+    a_view = as_strided(a, shape=(2,), strides=(2 * a.itemsize,), subok=True)
+    assert_(type(a_view) is VerySimpleSubClass)
+    # test that if a subclass has __array_finalize__, it is used
+    a = SimpleSubClass([1, 2, 3, 4])
+    a_view = as_strided(a, shape=(2,), strides=(2 * a.itemsize,), subok=True)
+    assert_(type(a_view) is SimpleSubClass)
+    assert_(a_view.info == 'simple finalized')
+
+    # similar tests for broadcast_arrays
+    b = np.arange(len(a)).reshape(-1, 1)
+    a_view, b_view = broadcast_arrays(a, b)
+    assert_(type(a_view) is np.ndarray)
+    assert_(type(b_view) is np.ndarray)
+    assert_(a_view.shape == b_view.shape)
+    a_view, b_view = broadcast_arrays(a, b, subok=True)
+    assert_(type(a_view) is SimpleSubClass)
+    assert_(a_view.info == 'simple finalized')
+    assert_(type(b_view) is np.ndarray)
+    assert_(a_view.shape == b_view.shape)
+
+    # and for broadcast_to
+    shape = (2, 4)
+    a_view = broadcast_to(a, shape)
+    assert_(type(a_view) is np.ndarray)
+    assert_(a_view.shape == shape)
+    a_view = broadcast_to(a, shape, subok=True)
+    assert_(type(a_view) is SimpleSubClass)
+    assert_(a_view.info == 'simple finalized')
+    assert_(a_view.shape == shape)
+
+
+def test_writeable():
+    # broadcast_to should return a readonly array
+    original = np.array([1, 2, 3])
+    result = broadcast_to(original, (2, 3))
+    assert_equal(result.flags.writeable, False)
+    assert_raises(ValueError, result.__setitem__, slice(None), 0)
+
+    # but the result of broadcast_arrays needs to be writeable, to
+    # preserve backwards compatibility
+    test_cases = [((False,), broadcast_arrays(original,)),
+                  ((True, False), broadcast_arrays(0, original))]
+    for is_broadcast, results in test_cases:
+        for array_is_broadcast, result in zip(is_broadcast, results):
+            # This will change to False in a future version
+            if array_is_broadcast:
+                with pytest.warns(FutureWarning):
+                    assert_equal(result.flags.writeable, True)
+                with pytest.warns(DeprecationWarning):
+                    result[:] = 0
+                # Warning not emitted, writing to the array resets it
+                assert_equal(result.flags.writeable, True)
+            else:
+                # No warning:
+                assert_equal(result.flags.writeable, True)
+
+    for results in [broadcast_arrays(original),
+                    broadcast_arrays(0, original)]:
+        for result in results:
+            # resets the warn_on_write DeprecationWarning
+            result.flags.writeable = True
+            # check: no warning emitted
+            assert_equal(result.flags.writeable, True)
+            result[:] = 0
+
+    # keep readonly input readonly
+    original.flags.writeable = False
+    _, result = broadcast_arrays(0, original)
+    assert_equal(result.flags.writeable, False)
+
+    # regression test for GH6491
+    shape = (2,)
+    strides = [0]
+    tricky_array = as_strided(np.array(0), shape, strides)
+    other = np.zeros((1,))
+    first, second = broadcast_arrays(tricky_array, other)
+    assert_(first.shape == second.shape)
+
+
+def test_writeable_memoryview():
+    # The result of broadcast_arrays exports as a non-writeable memoryview
+    # because otherwise there is no good way to opt in to the new behaviour
+    # (i.e. you would need to set writeable to False explicitly).
+    # See gh-13929.
+    original = np.array([1, 2, 3])
+
+    test_cases = [((False, ), broadcast_arrays(original,)),
+                  ((True, False), broadcast_arrays(0, original))]
+    for is_broadcast, results in test_cases:
+        for array_is_broadcast, result in zip(is_broadcast, results):
+            # This will change to False in a future version
+            if array_is_broadcast:
+                # memoryview(result, writable=True) will give warning but cannot
+                # be tested using the python API.
+                assert memoryview(result).readonly
+            else:
+                assert not memoryview(result).readonly
+
+
+def test_reference_types():
+    input_array = np.array('a', dtype=object)
+    expected = np.array(['a'] * 3, dtype=object)
+    actual = broadcast_to(input_array, (3,))
+    assert_array_equal(expected, actual)
+
+    actual, _ = broadcast_arrays(input_array, np.ones(3))
+    assert_array_equal(expected, actual)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_twodim_base.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_twodim_base.py
new file mode 100644
index 0000000000000000000000000000000000000000..34db416e21c40dae559889ee6cc9034e6be30b6c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_twodim_base.py
@@ -0,0 +1,559 @@
+"""Test functions for matrix module
+
+"""
+import pytest
+
+import numpy as np
+from numpy import (
+    add,
+    arange,
+    array,
+    diag,
+    eye,
+    fliplr,
+    flipud,
+    histogram2d,
+    mask_indices,
+    ones,
+    tri,
+    tril_indices,
+    tril_indices_from,
+    triu_indices,
+    triu_indices_from,
+    vander,
+    zeros,
+)
+from numpy.testing import (
+    assert_,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_array_max_ulp,
+    assert_equal,
+    assert_raises,
+)
+
+
+def get_mat(n):
+    data = arange(n)
+    data = add.outer(data, data)
+    return data
+
+
+class TestEye:
+    def test_basic(self):
+        assert_equal(eye(4),
+                     array([[1, 0, 0, 0],
+                            [0, 1, 0, 0],
+                            [0, 0, 1, 0],
+                            [0, 0, 0, 1]]))
+
+        assert_equal(eye(4, dtype='f'),
+                     array([[1, 0, 0, 0],
+                            [0, 1, 0, 0],
+                            [0, 0, 1, 0],
+                            [0, 0, 0, 1]], 'f'))
+
+        assert_equal(eye(3) == 1,
+                     eye(3, dtype=bool))
+
+    def test_uint64(self):
+        # Regression test for gh-9982
+        assert_equal(eye(np.uint64(2), dtype=int), array([[1, 0], [0, 1]]))
+        assert_equal(eye(np.uint64(2), M=np.uint64(4), k=np.uint64(1)),
+                     array([[0, 1, 0, 0], [0, 0, 1, 0]]))
+
+    def test_diag(self):
+        assert_equal(eye(4, k=1),
+                     array([[0, 1, 0, 0],
+                            [0, 0, 1, 0],
+                            [0, 0, 0, 1],
+                            [0, 0, 0, 0]]))
+
+        assert_equal(eye(4, k=-1),
+                     array([[0, 0, 0, 0],
+                            [1, 0, 0, 0],
+                            [0, 1, 0, 0],
+                            [0, 0, 1, 0]]))
+
+    def test_2d(self):
+        assert_equal(eye(4, 3),
+                     array([[1, 0, 0],
+                            [0, 1, 0],
+                            [0, 0, 1],
+                            [0, 0, 0]]))
+
+        assert_equal(eye(3, 4),
+                     array([[1, 0, 0, 0],
+                            [0, 1, 0, 0],
+                            [0, 0, 1, 0]]))
+
+    def test_diag2d(self):
+        assert_equal(eye(3, 4, k=2),
+                     array([[0, 0, 1, 0],
+                            [0, 0, 0, 1],
+                            [0, 0, 0, 0]]))
+
+        assert_equal(eye(4, 3, k=-2),
+                     array([[0, 0, 0],
+                            [0, 0, 0],
+                            [1, 0, 0],
+                            [0, 1, 0]]))
+
+    def test_eye_bounds(self):
+        assert_equal(eye(2, 2, 1), [[0, 1], [0, 0]])
+        assert_equal(eye(2, 2, -1), [[0, 0], [1, 0]])
+        assert_equal(eye(2, 2, 2), [[0, 0], [0, 0]])
+        assert_equal(eye(2, 2, -2), [[0, 0], [0, 0]])
+        assert_equal(eye(3, 2, 2), [[0, 0], [0, 0], [0, 0]])
+        assert_equal(eye(3, 2, 1), [[0, 1], [0, 0], [0, 0]])
+        assert_equal(eye(3, 2, -1), [[0, 0], [1, 0], [0, 1]])
+        assert_equal(eye(3, 2, -2), [[0, 0], [0, 0], [1, 0]])
+        assert_equal(eye(3, 2, -3), [[0, 0], [0, 0], [0, 0]])
+
+    def test_strings(self):
+        assert_equal(eye(2, 2, dtype='S3'),
+                     [[b'1', b''], [b'', b'1']])
+
+    def test_bool(self):
+        assert_equal(eye(2, 2, dtype=bool), [[True, False], [False, True]])
+
+    def test_order(self):
+        mat_c = eye(4, 3, k=-1)
+        mat_f = eye(4, 3, k=-1, order='F')
+        assert_equal(mat_c, mat_f)
+        assert mat_c.flags.c_contiguous
+        assert not mat_c.flags.f_contiguous
+        assert not mat_f.flags.c_contiguous
+        assert mat_f.flags.f_contiguous
+
+
+class TestDiag:
+    def test_vector(self):
+        vals = (100 * arange(5)).astype('l')
+        b = zeros((5, 5))
+        for k in range(5):
+            b[k, k] = vals[k]
+        assert_equal(diag(vals), b)
+        b = zeros((7, 7))
+        c = b.copy()
+        for k in range(5):
+            b[k, k + 2] = vals[k]
+            c[k + 2, k] = vals[k]
+        assert_equal(diag(vals, k=2), b)
+        assert_equal(diag(vals, k=-2), c)
+
+    def test_matrix(self, vals=None):
+        if vals is None:
+            vals = (100 * get_mat(5) + 1).astype('l')
+        b = zeros((5,))
+        for k in range(5):
+            b[k] = vals[k, k]
+        assert_equal(diag(vals), b)
+        b = b * 0
+        for k in range(3):
+            b[k] = vals[k, k + 2]
+        assert_equal(diag(vals, 2), b[:3])
+        for k in range(3):
+            b[k] = vals[k + 2, k]
+        assert_equal(diag(vals, -2), b[:3])
+
+    def test_fortran_order(self):
+        vals = array((100 * get_mat(5) + 1), order='F', dtype='l')
+        self.test_matrix(vals)
+
+    def test_diag_bounds(self):
+        A = [[1, 2], [3, 4], [5, 6]]
+        assert_equal(diag(A, k=2), [])
+        assert_equal(diag(A, k=1), [2])
+        assert_equal(diag(A, k=0), [1, 4])
+        assert_equal(diag(A, k=-1), [3, 6])
+        assert_equal(diag(A, k=-2), [5])
+        assert_equal(diag(A, k=-3), [])
+
+    def test_failure(self):
+        assert_raises(ValueError, diag, [[[1]]])
+
+
+class TestFliplr:
+    def test_basic(self):
+        assert_raises(ValueError, fliplr, ones(4))
+        a = get_mat(4)
+        b = a[:, ::-1]
+        assert_equal(fliplr(a), b)
+        a = [[0, 1, 2],
+             [3, 4, 5]]
+        b = [[2, 1, 0],
+             [5, 4, 3]]
+        assert_equal(fliplr(a), b)
+
+
+class TestFlipud:
+    def test_basic(self):
+        a = get_mat(4)
+        b = a[::-1, :]
+        assert_equal(flipud(a), b)
+        a = [[0, 1, 2],
+             [3, 4, 5]]
+        b = [[3, 4, 5],
+             [0, 1, 2]]
+        assert_equal(flipud(a), b)
+
+
+class TestHistogram2d:
+    def test_simple(self):
+        x = array(
+            [0.41702200, 0.72032449, 1.1437481e-4, 0.302332573, 0.146755891])
+        y = array(
+            [0.09233859, 0.18626021, 0.34556073, 0.39676747, 0.53881673])
+        xedges = np.linspace(0, 1, 10)
+        yedges = np.linspace(0, 1, 10)
+        H = histogram2d(x, y, (xedges, yedges))[0]
+        answer = array(
+            [[0, 0, 0, 1, 0, 0, 0, 0, 0],
+             [0, 0, 0, 0, 0, 0, 1, 0, 0],
+             [0, 0, 0, 0, 0, 0, 0, 0, 0],
+             [1, 0, 1, 0, 0, 0, 0, 0, 0],
+             [0, 1, 0, 0, 0, 0, 0, 0, 0],
+             [0, 0, 0, 0, 0, 0, 0, 0, 0],
+             [0, 0, 0, 0, 0, 0, 0, 0, 0],
+             [0, 0, 0, 0, 0, 0, 0, 0, 0],
+             [0, 0, 0, 0, 0, 0, 0, 0, 0]])
+        assert_array_equal(H.T, answer)
+        H = histogram2d(x, y, xedges)[0]
+        assert_array_equal(H.T, answer)
+        H, xedges, yedges = histogram2d(list(range(10)), list(range(10)))
+        assert_array_equal(H, eye(10, 10))
+        assert_array_equal(xedges, np.linspace(0, 9, 11))
+        assert_array_equal(yedges, np.linspace(0, 9, 11))
+
+    def test_asym(self):
+        x = array([1, 1, 2, 3, 4, 4, 4, 5])
+        y = array([1, 3, 2, 0, 1, 2, 3, 4])
+        H, xed, yed = histogram2d(
+            x, y, (6, 5), range=[[0, 6], [0, 5]], density=True)
+        answer = array(
+            [[0., 0, 0, 0, 0],
+             [0, 1, 0, 1, 0],
+             [0, 0, 1, 0, 0],
+             [1, 0, 0, 0, 0],
+             [0, 1, 1, 1, 0],
+             [0, 0, 0, 0, 1]])
+        assert_array_almost_equal(H, answer / 8., 3)
+        assert_array_equal(xed, np.linspace(0, 6, 7))
+        assert_array_equal(yed, np.linspace(0, 5, 6))
+
+    def test_density(self):
+        x = array([1, 2, 3, 1, 2, 3, 1, 2, 3])
+        y = array([1, 1, 1, 2, 2, 2, 3, 3, 3])
+        H, xed, yed = histogram2d(
+            x, y, [[1, 2, 3, 5], [1, 2, 3, 5]], density=True)
+        answer = array([[1, 1, .5],
+                        [1, 1, .5],
+                        [.5, .5, .25]]) / 9.
+        assert_array_almost_equal(H, answer, 3)
+
+    def test_all_outliers(self):
+        r = np.random.rand(100) + 1. + 1e6  # histogramdd rounds by decimal=6
+        H, xed, yed = histogram2d(r, r, (4, 5), range=([0, 1], [0, 1]))
+        assert_array_equal(H, 0)
+
+    def test_empty(self):
+        a, edge1, edge2 = histogram2d([], [], bins=([0, 1], [0, 1]))
+        assert_array_max_ulp(a, array([[0.]]))
+
+        a, edge1, edge2 = histogram2d([], [], bins=4)
+        assert_array_max_ulp(a, np.zeros((4, 4)))
+
+    def test_binparameter_combination(self):
+        x = array(
+            [0, 0.09207008, 0.64575234, 0.12875982, 0.47390599,
+             0.59944483, 1])
+        y = array(
+            [0, 0.14344267, 0.48988575, 0.30558665, 0.44700682,
+             0.15886423, 1])
+        edges = (0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1)
+        H, xe, ye = histogram2d(x, y, (edges, 4))
+        answer = array(
+            [[2., 0., 0., 0.],
+             [0., 1., 0., 0.],
+             [0., 0., 0., 0.],
+             [0., 0., 0., 0.],
+             [0., 1., 0., 0.],
+             [1., 0., 0., 0.],
+             [0., 1., 0., 0.],
+             [0., 0., 0., 0.],
+             [0., 0., 0., 0.],
+             [0., 0., 0., 1.]])
+        assert_array_equal(H, answer)
+        assert_array_equal(ye, array([0., 0.25, 0.5, 0.75, 1]))
+        H, xe, ye = histogram2d(x, y, (4, edges))
+        answer = array(
+            [[1., 1., 0., 1., 0., 0., 0., 0., 0., 0.],
+             [0., 0., 0., 0., 1., 0., 0., 0., 0., 0.],
+             [0., 1., 0., 0., 1., 0., 0., 0., 0., 0.],
+             [0., 0., 0., 0., 0., 0., 0., 0., 0., 1.]])
+        assert_array_equal(H, answer)
+        assert_array_equal(xe, array([0., 0.25, 0.5, 0.75, 1]))
+
+    def test_dispatch(self):
+        class ShouldDispatch:
+            def __array_function__(self, function, types, args, kwargs):
+                return types, args, kwargs
+
+        xy = [1, 2]
+        s_d = ShouldDispatch()
+        r = histogram2d(s_d, xy)
+        # Cannot use assert_equal since that dispatches...
+        assert_(r == ((ShouldDispatch,), (s_d, xy), {}))
+        r = histogram2d(xy, s_d)
+        assert_(r == ((ShouldDispatch,), (xy, s_d), {}))
+        r = histogram2d(xy, xy, bins=s_d)
+        assert_(r, ((ShouldDispatch,), (xy, xy), {'bins': s_d}))
+        r = histogram2d(xy, xy, bins=[s_d, 5])
+        assert_(r, ((ShouldDispatch,), (xy, xy), {'bins': [s_d, 5]}))
+        assert_raises(Exception, histogram2d, xy, xy, bins=[s_d])
+        r = histogram2d(xy, xy, weights=s_d)
+        assert_(r, ((ShouldDispatch,), (xy, xy), {'weights': s_d}))
+
+    @pytest.mark.parametrize(("x_len", "y_len"), [(10, 11), (20, 19)])
+    def test_bad_length(self, x_len, y_len):
+        x, y = np.ones(x_len), np.ones(y_len)
+        with pytest.raises(ValueError,
+                           match='x and y must have the same length.'):
+            histogram2d(x, y)
+
+
+class TestTri:
+    def test_dtype(self):
+        out = array([[1, 0, 0],
+                     [1, 1, 0],
+                     [1, 1, 1]])
+        assert_array_equal(tri(3), out)
+        assert_array_equal(tri(3, dtype=bool), out.astype(bool))
+
+
+def test_tril_triu_ndim2():
+    for dtype in np.typecodes['AllFloat'] + np.typecodes['AllInteger']:
+        a = np.ones((2, 2), dtype=dtype)
+        b = np.tril(a)
+        c = np.triu(a)
+        assert_array_equal(b, [[1, 0], [1, 1]])
+        assert_array_equal(c, b.T)
+        # should return the same dtype as the original array
+        assert_equal(b.dtype, a.dtype)
+        assert_equal(c.dtype, a.dtype)
+
+
+def test_tril_triu_ndim3():
+    for dtype in np.typecodes['AllFloat'] + np.typecodes['AllInteger']:
+        a = np.array([
+            [[1, 1], [1, 1]],
+            [[1, 1], [1, 0]],
+            [[1, 1], [0, 0]],
+            ], dtype=dtype)
+        a_tril_desired = np.array([
+            [[1, 0], [1, 1]],
+            [[1, 0], [1, 0]],
+            [[1, 0], [0, 0]],
+            ], dtype=dtype)
+        a_triu_desired = np.array([
+            [[1, 1], [0, 1]],
+            [[1, 1], [0, 0]],
+            [[1, 1], [0, 0]],
+            ], dtype=dtype)
+        a_triu_observed = np.triu(a)
+        a_tril_observed = np.tril(a)
+        assert_array_equal(a_triu_observed, a_triu_desired)
+        assert_array_equal(a_tril_observed, a_tril_desired)
+        assert_equal(a_triu_observed.dtype, a.dtype)
+        assert_equal(a_tril_observed.dtype, a.dtype)
+
+
+def test_tril_triu_with_inf():
+    # Issue 4859
+    arr = np.array([[1, 1, np.inf],
+                    [1, 1, 1],
+                    [np.inf, 1, 1]])
+    out_tril = np.array([[1, 0, 0],
+                         [1, 1, 0],
+                         [np.inf, 1, 1]])
+    out_triu = out_tril.T
+    assert_array_equal(np.triu(arr), out_triu)
+    assert_array_equal(np.tril(arr), out_tril)
+
+
+def test_tril_triu_dtype():
+    # Issue 4916
+    # tril and triu should return the same dtype as input
+    for c in np.typecodes['All']:
+        if c == 'V':
+            continue
+        arr = np.zeros((3, 3), dtype=c)
+        assert_equal(np.triu(arr).dtype, arr.dtype)
+        assert_equal(np.tril(arr).dtype, arr.dtype)
+
+    # check special cases
+    arr = np.array([['2001-01-01T12:00', '2002-02-03T13:56'],
+                    ['2004-01-01T12:00', '2003-01-03T13:45']],
+                   dtype='datetime64')
+    assert_equal(np.triu(arr).dtype, arr.dtype)
+    assert_equal(np.tril(arr).dtype, arr.dtype)
+
+    arr = np.zeros((3, 3), dtype='f4,f4')
+    assert_equal(np.triu(arr).dtype, arr.dtype)
+    assert_equal(np.tril(arr).dtype, arr.dtype)
+
+
+def test_mask_indices():
+    # simple test without offset
+    iu = mask_indices(3, np.triu)
+    a = np.arange(9).reshape(3, 3)
+    assert_array_equal(a[iu], array([0, 1, 2, 4, 5, 8]))
+    # Now with an offset
+    iu1 = mask_indices(3, np.triu, 1)
+    assert_array_equal(a[iu1], array([1, 2, 5]))
+
+
+def test_tril_indices():
+    # indices without and with offset
+    il1 = tril_indices(4)
+    il2 = tril_indices(4, k=2)
+    il3 = tril_indices(4, m=5)
+    il4 = tril_indices(4, k=2, m=5)
+
+    a = np.array([[1, 2, 3, 4],
+                  [5, 6, 7, 8],
+                  [9, 10, 11, 12],
+                  [13, 14, 15, 16]])
+    b = np.arange(1, 21).reshape(4, 5)
+
+    # indexing:
+    assert_array_equal(a[il1],
+                       array([1, 5, 6, 9, 10, 11, 13, 14, 15, 16]))
+    assert_array_equal(b[il3],
+                       array([1, 6, 7, 11, 12, 13, 16, 17, 18, 19]))
+
+    # And for assigning values:
+    a[il1] = -1
+    assert_array_equal(a,
+                       array([[-1, 2, 3, 4],
+                              [-1, -1, 7, 8],
+                              [-1, -1, -1, 12],
+                              [-1, -1, -1, -1]]))
+    b[il3] = -1
+    assert_array_equal(b,
+                       array([[-1, 2, 3, 4, 5],
+                              [-1, -1, 8, 9, 10],
+                              [-1, -1, -1, 14, 15],
+                              [-1, -1, -1, -1, 20]]))
+    # These cover almost the whole array (two diagonals right of the main one):
+    a[il2] = -10
+    assert_array_equal(a,
+                       array([[-10, -10, -10, 4],
+                              [-10, -10, -10, -10],
+                              [-10, -10, -10, -10],
+                              [-10, -10, -10, -10]]))
+    b[il4] = -10
+    assert_array_equal(b,
+                       array([[-10, -10, -10, 4, 5],
+                              [-10, -10, -10, -10, 10],
+                              [-10, -10, -10, -10, -10],
+                              [-10, -10, -10, -10, -10]]))
+
+
+class TestTriuIndices:
+    def test_triu_indices(self):
+        iu1 = triu_indices(4)
+        iu2 = triu_indices(4, k=2)
+        iu3 = triu_indices(4, m=5)
+        iu4 = triu_indices(4, k=2, m=5)
+
+        a = np.array([[1, 2, 3, 4],
+                      [5, 6, 7, 8],
+                      [9, 10, 11, 12],
+                      [13, 14, 15, 16]])
+        b = np.arange(1, 21).reshape(4, 5)
+
+        # Both for indexing:
+        assert_array_equal(a[iu1],
+                           array([1, 2, 3, 4, 6, 7, 8, 11, 12, 16]))
+        assert_array_equal(b[iu3],
+                           array([1, 2, 3, 4, 5, 7, 8, 9,
+                                  10, 13, 14, 15, 19, 20]))
+
+        # And for assigning values:
+        a[iu1] = -1
+        assert_array_equal(a,
+                           array([[-1, -1, -1, -1],
+                                  [5, -1, -1, -1],
+                                  [9, 10, -1, -1],
+                                  [13, 14, 15, -1]]))
+        b[iu3] = -1
+        assert_array_equal(b,
+                           array([[-1, -1, -1, -1, -1],
+                                  [6, -1, -1, -1, -1],
+                                  [11, 12, -1, -1, -1],
+                                  [16, 17, 18, -1, -1]]))
+
+        # These cover almost the whole array (two diagonals right of the
+        # main one):
+        a[iu2] = -10
+        assert_array_equal(a,
+                           array([[-1, -1, -10, -10],
+                                  [5, -1, -1, -10],
+                                  [9, 10, -1, -1],
+                                  [13, 14, 15, -1]]))
+        b[iu4] = -10
+        assert_array_equal(b,
+                           array([[-1, -1, -10, -10, -10],
+                                  [6, -1, -1, -10, -10],
+                                  [11, 12, -1, -1, -10],
+                                  [16, 17, 18, -1, -1]]))
+
+
+class TestTrilIndicesFrom:
+    def test_exceptions(self):
+        assert_raises(ValueError, tril_indices_from, np.ones((2,)))
+        assert_raises(ValueError, tril_indices_from, np.ones((2, 2, 2)))
+        # assert_raises(ValueError, tril_indices_from, np.ones((2, 3)))
+
+
+class TestTriuIndicesFrom:
+    def test_exceptions(self):
+        assert_raises(ValueError, triu_indices_from, np.ones((2,)))
+        assert_raises(ValueError, triu_indices_from, np.ones((2, 2, 2)))
+        # assert_raises(ValueError, triu_indices_from, np.ones((2, 3)))
+
+
+class TestVander:
+    def test_basic(self):
+        c = np.array([0, 1, -2, 3])
+        v = vander(c)
+        powers = np.array([[0, 0, 0, 0, 1],
+                           [1, 1, 1, 1, 1],
+                           [16, -8, 4, -2, 1],
+                           [81, 27, 9, 3, 1]])
+        # Check default value of N:
+        assert_array_equal(v, powers[:, 1:])
+        # Check a range of N values, including 0 and 5 (greater than default)
+        m = powers.shape[1]
+        for n in range(6):
+            v = vander(c, N=n)
+            assert_array_equal(v, powers[:, m - n:m])
+
+    def test_dtypes(self):
+        c = array([11, -12, 13], dtype=np.int8)
+        v = vander(c)
+        expected = np.array([[121, 11, 1],
+                             [144, -12, 1],
+                             [169, 13, 1]])
+        assert_array_equal(v, expected)
+
+        c = array([1.0 + 1j, 1.0 - 1j])
+        v = vander(c, N=3)
+        expected = np.array([[2j, 1 + 1j, 1],
+                             [-2j, 1 - 1j, 1]])
+        # The data is floating point, but the values are small integers,
+        # so assert_array_equal *should* be safe here (rather than, say,
+        # assert_array_almost_equal).
+        assert_array_equal(v, expected)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_type_check.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_type_check.py
new file mode 100644
index 0000000000000000000000000000000000000000..3f4bee6d6300414cbdb99cf6dae90b1f9bfeb68d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_type_check.py
@@ -0,0 +1,473 @@
+import numpy as np
+from numpy import (
+    common_type,
+    iscomplex,
+    iscomplexobj,
+    isneginf,
+    isposinf,
+    isreal,
+    isrealobj,
+    mintypecode,
+    nan_to_num,
+    real_if_close,
+)
+from numpy.testing import assert_, assert_array_equal, assert_equal
+
+
+def assert_all(x):
+    assert_(np.all(x), x)
+
+
+class TestCommonType:
+    def test_basic(self):
+        ai32 = np.array([[1, 2], [3, 4]], dtype=np.int32)
+        af16 = np.array([[1, 2], [3, 4]], dtype=np.float16)
+        af32 = np.array([[1, 2], [3, 4]], dtype=np.float32)
+        af64 = np.array([[1, 2], [3, 4]], dtype=np.float64)
+        acs = np.array([[1 + 5j, 2 + 6j], [3 + 7j, 4 + 8j]], dtype=np.complex64)
+        acd = np.array([[1 + 5j, 2 + 6j], [3 + 7j, 4 + 8j]], dtype=np.complex128)
+        assert_(common_type(ai32) == np.float64)
+        assert_(common_type(af16) == np.float16)
+        assert_(common_type(af32) == np.float32)
+        assert_(common_type(af64) == np.float64)
+        assert_(common_type(acs) == np.complex64)
+        assert_(common_type(acd) == np.complex128)
+
+
+class TestMintypecode:
+
+    def test_default_1(self):
+        for itype in '1bcsuwil':
+            assert_equal(mintypecode(itype), 'd')
+        assert_equal(mintypecode('f'), 'f')
+        assert_equal(mintypecode('d'), 'd')
+        assert_equal(mintypecode('F'), 'F')
+        assert_equal(mintypecode('D'), 'D')
+
+    def test_default_2(self):
+        for itype in '1bcsuwil':
+            assert_equal(mintypecode(itype + 'f'), 'f')
+            assert_equal(mintypecode(itype + 'd'), 'd')
+            assert_equal(mintypecode(itype + 'F'), 'F')
+            assert_equal(mintypecode(itype + 'D'), 'D')
+        assert_equal(mintypecode('ff'), 'f')
+        assert_equal(mintypecode('fd'), 'd')
+        assert_equal(mintypecode('fF'), 'F')
+        assert_equal(mintypecode('fD'), 'D')
+        assert_equal(mintypecode('df'), 'd')
+        assert_equal(mintypecode('dd'), 'd')
+        #assert_equal(mintypecode('dF',savespace=1),'F')
+        assert_equal(mintypecode('dF'), 'D')
+        assert_equal(mintypecode('dD'), 'D')
+        assert_equal(mintypecode('Ff'), 'F')
+        #assert_equal(mintypecode('Fd',savespace=1),'F')
+        assert_equal(mintypecode('Fd'), 'D')
+        assert_equal(mintypecode('FF'), 'F')
+        assert_equal(mintypecode('FD'), 'D')
+        assert_equal(mintypecode('Df'), 'D')
+        assert_equal(mintypecode('Dd'), 'D')
+        assert_equal(mintypecode('DF'), 'D')
+        assert_equal(mintypecode('DD'), 'D')
+
+    def test_default_3(self):
+        assert_equal(mintypecode('fdF'), 'D')
+        #assert_equal(mintypecode('fdF',savespace=1),'F')
+        assert_equal(mintypecode('fdD'), 'D')
+        assert_equal(mintypecode('fFD'), 'D')
+        assert_equal(mintypecode('dFD'), 'D')
+
+        assert_equal(mintypecode('ifd'), 'd')
+        assert_equal(mintypecode('ifF'), 'F')
+        assert_equal(mintypecode('ifD'), 'D')
+        assert_equal(mintypecode('idF'), 'D')
+        #assert_equal(mintypecode('idF',savespace=1),'F')
+        assert_equal(mintypecode('idD'), 'D')
+
+
+class TestIsscalar:
+
+    def test_basic(self):
+        assert_(np.isscalar(3))
+        assert_(not np.isscalar([3]))
+        assert_(not np.isscalar((3,)))
+        assert_(np.isscalar(3j))
+        assert_(np.isscalar(4.0))
+
+
+class TestReal:
+
+    def test_real(self):
+        y = np.random.rand(10,)
+        assert_array_equal(y, np.real(y))
+
+        y = np.array(1)
+        out = np.real(y)
+        assert_array_equal(y, out)
+        assert_(isinstance(out, np.ndarray))
+
+        y = 1
+        out = np.real(y)
+        assert_equal(y, out)
+        assert_(not isinstance(out, np.ndarray))
+
+    def test_cmplx(self):
+        y = np.random.rand(10,) + 1j * np.random.rand(10,)
+        assert_array_equal(y.real, np.real(y))
+
+        y = np.array(1 + 1j)
+        out = np.real(y)
+        assert_array_equal(y.real, out)
+        assert_(isinstance(out, np.ndarray))
+
+        y = 1 + 1j
+        out = np.real(y)
+        assert_equal(1.0, out)
+        assert_(not isinstance(out, np.ndarray))
+
+
+class TestImag:
+
+    def test_real(self):
+        y = np.random.rand(10,)
+        assert_array_equal(0, np.imag(y))
+
+        y = np.array(1)
+        out = np.imag(y)
+        assert_array_equal(0, out)
+        assert_(isinstance(out, np.ndarray))
+
+        y = 1
+        out = np.imag(y)
+        assert_equal(0, out)
+        assert_(not isinstance(out, np.ndarray))
+
+    def test_cmplx(self):
+        y = np.random.rand(10,) + 1j * np.random.rand(10,)
+        assert_array_equal(y.imag, np.imag(y))
+
+        y = np.array(1 + 1j)
+        out = np.imag(y)
+        assert_array_equal(y.imag, out)
+        assert_(isinstance(out, np.ndarray))
+
+        y = 1 + 1j
+        out = np.imag(y)
+        assert_equal(1.0, out)
+        assert_(not isinstance(out, np.ndarray))
+
+
+class TestIscomplex:
+
+    def test_fail(self):
+        z = np.array([-1, 0, 1])
+        res = iscomplex(z)
+        assert_(not np.any(res, axis=0))
+
+    def test_pass(self):
+        z = np.array([-1j, 1, 0])
+        res = iscomplex(z)
+        assert_array_equal(res, [1, 0, 0])
+
+
+class TestIsreal:
+
+    def test_pass(self):
+        z = np.array([-1, 0, 1j])
+        res = isreal(z)
+        assert_array_equal(res, [1, 1, 0])
+
+    def test_fail(self):
+        z = np.array([-1j, 1, 0])
+        res = isreal(z)
+        assert_array_equal(res, [0, 1, 1])
+
+
+class TestIscomplexobj:
+
+    def test_basic(self):
+        z = np.array([-1, 0, 1])
+        assert_(not iscomplexobj(z))
+        z = np.array([-1j, 0, -1])
+        assert_(iscomplexobj(z))
+
+    def test_scalar(self):
+        assert_(not iscomplexobj(1.0))
+        assert_(iscomplexobj(1 + 0j))
+
+    def test_list(self):
+        assert_(iscomplexobj([3, 1 + 0j, True]))
+        assert_(not iscomplexobj([3, 1, True]))
+
+    def test_duck(self):
+        class DummyComplexArray:
+            @property
+            def dtype(self):
+                return np.dtype(complex)
+        dummy = DummyComplexArray()
+        assert_(iscomplexobj(dummy))
+
+    def test_pandas_duck(self):
+        # This tests a custom np.dtype duck-typed class, such as used by pandas
+        # (pandas.core.dtypes)
+        class PdComplex(np.complex128):
+            pass
+
+        class PdDtype:
+            name = 'category'
+            names = None
+            type = PdComplex
+            kind = 'c'
+            str = '<c16'
+            base = np.dtype('complex128')
+
+        class DummyPd:
+            @property
+            def dtype(self):
+                return PdDtype
+        dummy = DummyPd()
+        assert_(iscomplexobj(dummy))
+
+    def test_custom_dtype_duck(self):
+        class MyArray(list):
+            @property
+            def dtype(self):
+                return complex
+
+        a = MyArray([1 + 0j, 2 + 0j, 3 + 0j])
+        assert_(iscomplexobj(a))
+
+
+class TestIsrealobj:
+    def test_basic(self):
+        z = np.array([-1, 0, 1])
+        assert_(isrealobj(z))
+        z = np.array([-1j, 0, -1])
+        assert_(not isrealobj(z))
+
+
+class TestIsnan:
+
+    def test_goodvalues(self):
+        z = np.array((-1., 0., 1.))
+        res = np.isnan(z) == 0
+        assert_all(np.all(res, axis=0))
+
+    def test_posinf(self):
+        with np.errstate(divide='ignore'):
+            assert_all(np.isnan(np.array((1.,)) / 0.) == 0)
+
+    def test_neginf(self):
+        with np.errstate(divide='ignore'):
+            assert_all(np.isnan(np.array((-1.,)) / 0.) == 0)
+
+    def test_ind(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isnan(np.array((0.,)) / 0.) == 1)
+
+    def test_integer(self):
+        assert_all(np.isnan(1) == 0)
+
+    def test_complex(self):
+        assert_all(np.isnan(1 + 1j) == 0)
+
+    def test_complex1(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isnan(np.array(0 + 0j) / 0.) == 1)
+
+
+class TestIsfinite:
+    # Fixme, wrong place, isfinite now ufunc
+
+    def test_goodvalues(self):
+        z = np.array((-1., 0., 1.))
+        res = np.isfinite(z) == 1
+        assert_all(np.all(res, axis=0))
+
+    def test_posinf(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isfinite(np.array((1.,)) / 0.) == 0)
+
+    def test_neginf(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isfinite(np.array((-1.,)) / 0.) == 0)
+
+    def test_ind(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isfinite(np.array((0.,)) / 0.) == 0)
+
+    def test_integer(self):
+        assert_all(np.isfinite(1) == 1)
+
+    def test_complex(self):
+        assert_all(np.isfinite(1 + 1j) == 1)
+
+    def test_complex1(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isfinite(np.array(1 + 1j) / 0.) == 0)
+
+
+class TestIsinf:
+    # Fixme, wrong place, isinf now ufunc
+
+    def test_goodvalues(self):
+        z = np.array((-1., 0., 1.))
+        res = np.isinf(z) == 0
+        assert_all(np.all(res, axis=0))
+
+    def test_posinf(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isinf(np.array((1.,)) / 0.) == 1)
+
+    def test_posinf_scalar(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isinf(np.array(1.,) / 0.) == 1)
+
+    def test_neginf(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isinf(np.array((-1.,)) / 0.) == 1)
+
+    def test_neginf_scalar(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isinf(np.array(-1.) / 0.) == 1)
+
+    def test_ind(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_all(np.isinf(np.array((0.,)) / 0.) == 0)
+
+
+class TestIsposinf:
+
+    def test_generic(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = isposinf(np.array((-1., 0, 1)) / 0.)
+        assert_(vals[0] == 0)
+        assert_(vals[1] == 0)
+        assert_(vals[2] == 1)
+
+
+class TestIsneginf:
+
+    def test_generic(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = isneginf(np.array((-1., 0, 1)) / 0.)
+        assert_(vals[0] == 1)
+        assert_(vals[1] == 0)
+        assert_(vals[2] == 0)
+
+
+class TestNanToNum:
+
+    def test_generic(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = nan_to_num(np.array((-1., 0, 1)) / 0.)
+        assert_all(vals[0] < -1e10) and assert_all(np.isfinite(vals[0]))
+        assert_(vals[1] == 0)
+        assert_all(vals[2] > 1e10) and assert_all(np.isfinite(vals[2]))
+        assert_equal(type(vals), np.ndarray)
+
+        # perform the same tests but with nan, posinf and neginf keywords
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = nan_to_num(np.array((-1., 0, 1)) / 0.,
+                              nan=10, posinf=20, neginf=30)
+        assert_equal(vals, [30, 10, 20])
+        assert_all(np.isfinite(vals[[0, 2]]))
+        assert_equal(type(vals), np.ndarray)
+
+        # perform the same test but in-place
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = np.array((-1., 0, 1)) / 0.
+        result = nan_to_num(vals, copy=False)
+
+        assert_(result is vals)
+        assert_all(vals[0] < -1e10) and assert_all(np.isfinite(vals[0]))
+        assert_(vals[1] == 0)
+        assert_all(vals[2] > 1e10) and assert_all(np.isfinite(vals[2]))
+        assert_equal(type(vals), np.ndarray)
+
+        # perform the same test but in-place
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = np.array((-1., 0, 1)) / 0.
+        result = nan_to_num(vals, copy=False, nan=10, posinf=20, neginf=30)
+
+        assert_(result is vals)
+        assert_equal(vals, [30, 10, 20])
+        assert_all(np.isfinite(vals[[0, 2]]))
+        assert_equal(type(vals), np.ndarray)
+
+    def test_array(self):
+        vals = nan_to_num([1])
+        assert_array_equal(vals, np.array([1], int))
+        assert_equal(type(vals), np.ndarray)
+        vals = nan_to_num([1], nan=10, posinf=20, neginf=30)
+        assert_array_equal(vals, np.array([1], int))
+        assert_equal(type(vals), np.ndarray)
+
+    def test_integer(self):
+        vals = nan_to_num(1)
+        assert_all(vals == 1)
+        assert_equal(type(vals), np.int_)
+        vals = nan_to_num(1, nan=10, posinf=20, neginf=30)
+        assert_all(vals == 1)
+        assert_equal(type(vals), np.int_)
+
+    def test_float(self):
+        vals = nan_to_num(1.0)
+        assert_all(vals == 1.0)
+        assert_equal(type(vals), np.float64)
+        vals = nan_to_num(1.1, nan=10, posinf=20, neginf=30)
+        assert_all(vals == 1.1)
+        assert_equal(type(vals), np.float64)
+
+    def test_complex_good(self):
+        vals = nan_to_num(1 + 1j)
+        assert_all(vals == 1 + 1j)
+        assert_equal(type(vals), np.complex128)
+        vals = nan_to_num(1 + 1j, nan=10, posinf=20, neginf=30)
+        assert_all(vals == 1 + 1j)
+        assert_equal(type(vals), np.complex128)
+
+    def test_complex_bad(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            v = 1 + 1j
+            v += np.array(0 + 1.j) / 0.
+        vals = nan_to_num(v)
+        # !! This is actually (unexpectedly) zero
+        assert_all(np.isfinite(vals))
+        assert_equal(type(vals), np.complex128)
+
+    def test_complex_bad2(self):
+        with np.errstate(divide='ignore', invalid='ignore'):
+            v = 1 + 1j
+            v += np.array(-1 + 1.j) / 0.
+        vals = nan_to_num(v)
+        assert_all(np.isfinite(vals))
+        assert_equal(type(vals), np.complex128)
+        # Fixme
+        #assert_all(vals.imag > 1e10)  and assert_all(np.isfinite(vals))
+        # !! This is actually (unexpectedly) positive
+        # !! inf.  Comment out for now, and see if it
+        # !! changes
+        #assert_all(vals.real < -1e10) and assert_all(np.isfinite(vals))
+
+    def test_do_not_rewrite_previous_keyword(self):
+        # This is done to test that when, for instance, nan=np.inf then these
+        # values are not rewritten by posinf keyword to the posinf value.
+        with np.errstate(divide='ignore', invalid='ignore'):
+            vals = nan_to_num(np.array((-1., 0, 1)) / 0., nan=np.inf, posinf=999)
+        assert_all(np.isfinite(vals[[0, 2]]))
+        assert_all(vals[0] < -1e10)
+        assert_equal(vals[[1, 2]], [np.inf, 999])
+        assert_equal(type(vals), np.ndarray)
+
+
+class TestRealIfClose:
+
+    def test_basic(self):
+        a = np.random.rand(10)
+        b = real_if_close(a + 1e-15j)
+        assert_all(isrealobj(b))
+        assert_array_equal(a, b)
+        b = real_if_close(a + 1e-7j)
+        assert_all(iscomplexobj(b))
+        b = real_if_close(a + 1e-7j, tol=1e-6)
+        assert_all(isrealobj(b))
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_ufunclike.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_ufunclike.py
new file mode 100644
index 0000000000000000000000000000000000000000..eb8a9548173a6d36b0734e0baf45b96955bf115e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_ufunclike.py
@@ -0,0 +1,97 @@
+import numpy as np
+from numpy import fix, isneginf, isposinf
+from numpy.testing import assert_, assert_array_equal, assert_equal, assert_raises
+
+
+class TestUfunclike:
+
+    def test_isposinf(self):
+        a = np.array([np.inf, -np.inf, np.nan, 0.0, 3.0, -3.0])
+        out = np.zeros(a.shape, bool)
+        tgt = np.array([True, False, False, False, False, False])
+
+        res = isposinf(a)
+        assert_equal(res, tgt)
+        res = isposinf(a, out)
+        assert_equal(res, tgt)
+        assert_equal(out, tgt)
+
+        a = a.astype(np.complex128)
+        with assert_raises(TypeError):
+            isposinf(a)
+
+    def test_isneginf(self):
+        a = np.array([np.inf, -np.inf, np.nan, 0.0, 3.0, -3.0])
+        out = np.zeros(a.shape, bool)
+        tgt = np.array([False, True, False, False, False, False])
+
+        res = isneginf(a)
+        assert_equal(res, tgt)
+        res = isneginf(a, out)
+        assert_equal(res, tgt)
+        assert_equal(out, tgt)
+
+        a = a.astype(np.complex128)
+        with assert_raises(TypeError):
+            isneginf(a)
+
+    def test_fix(self):
+        a = np.array([[1.0, 1.1, 1.5, 1.8], [-1.0, -1.1, -1.5, -1.8]])
+        out = np.zeros(a.shape, float)
+        tgt = np.array([[1., 1., 1., 1.], [-1., -1., -1., -1.]])
+
+        res = fix(a)
+        assert_equal(res, tgt)
+        res = fix(a, out)
+        assert_equal(res, tgt)
+        assert_equal(out, tgt)
+        assert_equal(fix(3.14), 3)
+
+    def test_fix_with_subclass(self):
+        class MyArray(np.ndarray):
+            def __new__(cls, data, metadata=None):
+                res = np.array(data, copy=True).view(cls)
+                res.metadata = metadata
+                return res
+
+            def __array_wrap__(self, obj, context=None, return_scalar=False):
+                if not isinstance(obj, MyArray):
+                    obj = obj.view(MyArray)
+                if obj.metadata is None:
+                    obj.metadata = self.metadata
+                return obj
+
+            def __array_finalize__(self, obj):
+                self.metadata = getattr(obj, 'metadata', None)
+                return self
+
+        a = np.array([1.1, -1.1])
+        m = MyArray(a, metadata='foo')
+        f = fix(m)
+        assert_array_equal(f, np.array([1, -1]))
+        assert_(isinstance(f, MyArray))
+        assert_equal(f.metadata, 'foo')
+
+        # check 0d arrays don't decay to scalars
+        m0d = m[0, ...]
+        m0d.metadata = 'bar'
+        f0d = fix(m0d)
+        assert_(isinstance(f0d, MyArray))
+        assert_equal(f0d.metadata, 'bar')
+
+    def test_scalar(self):
+        x = np.inf
+        actual = np.isposinf(x)
+        expected = np.True_
+        assert_equal(actual, expected)
+        assert_equal(type(actual), type(expected))
+
+        x = -3.4
+        actual = np.fix(x)
+        expected = np.float64(-3.0)
+        assert_equal(actual, expected)
+        assert_equal(type(actual), type(expected))
+
+        out = np.array(0.0)
+        actual = np.fix(x, out=out)
+        assert_(actual is out)
diff --git a/python/user_packages/Python313/site-packages/numpy/lib/tests/test_utils.py b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..abbe35582b002b83c82ff174cbf6e577819c45d0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/lib/tests/test_utils.py
@@ -0,0 +1,80 @@
+from io import StringIO
+
+import pytest
+
+import numpy as np
+import numpy.lib._utils_impl as _utils_impl
+from numpy.testing import assert_raises_regex
+
+
+def test_assert_raises_regex_context_manager():
+    with assert_raises_regex(ValueError, 'no deprecation warning'):
+        raise ValueError('no deprecation warning')
+
+
+def test_info_method_heading():
+    # info(class) should only print "Methods:" heading if methods exist
+
+    class NoPublicMethods:
+        pass
+
+    class WithPublicMethods:
+        def first_method():
+            pass
+
+    def _has_method_heading(cls):
+        out = StringIO()
+        np.info(cls, output=out)
+        return 'Methods:' in out.getvalue()
+
+    assert _has_method_heading(WithPublicMethods)
+    assert not _has_method_heading(NoPublicMethods)
+
+
+def test_drop_metadata():
+    def _compare_dtypes(dt1, dt2):
+        return np.can_cast(dt1, dt2, casting='no')
+
+    # structured dtype
+    dt = np.dtype([('l1', [('l2', np.dtype('S8', metadata={'msg': 'toto'}))])],
+                  metadata={'msg': 'titi'})
+    dt_m = _utils_impl.drop_metadata(dt)
+    assert _compare_dtypes(dt, dt_m) is True
+    assert dt_m.metadata is None
+    assert dt_m['l1'].metadata is None
+    assert dt_m['l1']['l2'].metadata is None
+
+    # alignment
+    dt = np.dtype([('x', '<f8'), ('y', '<i4')],
+                  align=True,
+                  metadata={'msg': 'toto'})
+    dt_m = _utils_impl.drop_metadata(dt)
+    assert _compare_dtypes(dt, dt_m) is True
+    assert dt_m.metadata is None
+
+    # subdtype
+    dt = np.dtype('8f',
+                  metadata={'msg': 'toto'})
+    dt_m = _utils_impl.drop_metadata(dt)
+    assert _compare_dtypes(dt, dt_m) is True
+    assert dt_m.metadata is None
+
+    # scalar
+    dt = np.dtype('uint32',
+                  metadata={'msg': 'toto'})
+    dt_m = _utils_impl.drop_metadata(dt)
+    assert _compare_dtypes(dt, dt_m) is True
+    assert dt_m.metadata is None
+
+
+@pytest.mark.parametrize("dtype",
+        [np.dtype("i,i,i,i")[["f1", "f3"]],
+        np.dtype("f8"),
+        np.dtype("10i")])
+def test_drop_metadata_identity_and_copy(dtype):
+    # If there is no metadata, the identity is preserved:
+    assert _utils_impl.drop_metadata(dtype) is dtype
+
+    # If there is any, it is dropped (subforms are checked above)
+    dtype = np.dtype(dtype, metadata={1: 2})
+    assert _utils_impl.drop_metadata(dtype).metadata is None
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diff --git a/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_deprecations.py b/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_deprecations.py
new file mode 100644
index 0000000000000000000000000000000000000000..83f2192deef7fbb454f74fb856723324980c6732
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_deprecations.py
@@ -0,0 +1,21 @@
+"""Test deprecation and future warnings.
+
+"""
+import pytest
+
+import numpy as np
+
+
+def test_qr_mode_full_future_warning():
+    """Check mode='full' FutureWarning.
+
+    In numpy 1.8 the mode options 'full' and 'economic' in linalg.qr were
+    deprecated. The release date will probably be sometime in the summer
+    of 2013.
+
+    """
+    a = np.eye(2)
+    pytest.warns(DeprecationWarning, np.linalg.qr, a, mode='full')
+    pytest.warns(DeprecationWarning, np.linalg.qr, a, mode='f')
+    pytest.warns(DeprecationWarning, np.linalg.qr, a, mode='economic')
+    pytest.warns(DeprecationWarning, np.linalg.qr, a, mode='e')
diff --git a/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_linalg.py b/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_linalg.py
new file mode 100644
index 0000000000000000000000000000000000000000..a6f372a95771fe6b80ad70e2ca8243e2f6590010
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_linalg.py
@@ -0,0 +1,2442 @@
+""" Test functions for linalg module
+
+"""
+import itertools
+import os
+import subprocess
+import sys
+import textwrap
+import threading
+import traceback
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy import (
+    array,
+    asarray,
+    atleast_2d,
+    cdouble,
+    csingle,
+    dot,
+    double,
+    identity,
+    inf,
+    linalg,
+    matmul,
+    multiply,
+    single,
+)
+from numpy._core import swapaxes
+from numpy.exceptions import AxisError
+from numpy.linalg import LinAlgError, matrix_power, matrix_rank, multi_dot, norm
+from numpy.linalg._linalg import _multi_dot_matrix_chain_order
+from numpy.testing import (
+    HAS_LAPACK64,
+    IS_WASM,
+    NOGIL_BUILD,
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+try:
+    import numpy.linalg.lapack_lite
+except ImportError:
+    # May be broken when numpy was built without BLAS/LAPACK present
+    # If so, ensure we don't break the whole test suite - the `lapack_lite`
+    # submodule should be removed, it's only used in two tests in this file.
+    pass
+
+
+def consistent_subclass(out, in_):
+    # For ndarray subclass input, our output should have the same subclass
+    # (non-ndarray input gets converted to ndarray).
+    return type(out) is (type(in_) if isinstance(in_, np.ndarray)
+                         else np.ndarray)
+
+
+old_assert_almost_equal = assert_almost_equal
+
+
+def assert_almost_equal(a, b, single_decimal=6, double_decimal=12, **kw):
+    if asarray(a).dtype.type in (single, csingle):
+        decimal = single_decimal
+    else:
+        decimal = double_decimal
+    old_assert_almost_equal(a, b, decimal=decimal, **kw)
+
+
+def get_real_dtype(dtype):
+    return {single: single, double: double,
+            csingle: single, cdouble: double}[dtype]
+
+
+def get_complex_dtype(dtype):
+    return {single: csingle, double: cdouble,
+            csingle: csingle, cdouble: cdouble}[dtype]
+
+
+def get_rtol(dtype):
+    # Choose a safe rtol
+    if dtype in (single, csingle):
+        return 1e-5
+    else:
+        return 1e-11
+
+
+# used to categorize tests
+all_tags = {
+  'square', 'nonsquare', 'hermitian',  # mutually exclusive
+  'generalized', 'size-0', 'strided'  # optional additions
+}
+
+
+class LinalgCase:
+    def __init__(self, name, a, b, tags=set()):
+        """
+        A bundle of arguments to be passed to a test case, with an identifying
+        name, the operands a and b, and a set of tags to filter the tests
+        """
+        assert_(isinstance(name, str))
+        self.name = name
+        self.a = a
+        self.b = b
+        self.tags = frozenset(tags)  # prevent shared tags
+
+    def check(self, do):
+        """
+        Run the function `do` on this test case, expanding arguments
+        """
+        do(self.a, self.b, tags=self.tags)
+
+    def __repr__(self):
+        return f'<LinalgCase: {self.name}>'
+
+
+def apply_tag(tag, cases):
+    """
+    Add the given tag (a string) to each of the cases (a list of LinalgCase
+    objects)
+    """
+    assert tag in all_tags, "Invalid tag"
+    for case in cases:
+        case.tags = case.tags | {tag}
+    return cases
+
+
+#
+# Base test cases
+#
+
+np.random.seed(1234)
+
+CASES = []
+
+# square test cases
+CASES += apply_tag('square', [
+    LinalgCase("single",
+               array([[1., 2.], [3., 4.]], dtype=single),
+               array([2., 1.], dtype=single)),
+    LinalgCase("double",
+               array([[1., 2.], [3., 4.]], dtype=double),
+               array([2., 1.], dtype=double)),
+    LinalgCase("double_2",
+               array([[1., 2.], [3., 4.]], dtype=double),
+               array([[2., 1., 4.], [3., 4., 6.]], dtype=double)),
+    LinalgCase("csingle",
+               array([[1. + 2j, 2 + 3j], [3 + 4j, 4 + 5j]], dtype=csingle),
+               array([2. + 1j, 1. + 2j], dtype=csingle)),
+    LinalgCase("cdouble",
+               array([[1. + 2j, 2 + 3j], [3 + 4j, 4 + 5j]], dtype=cdouble),
+               array([2. + 1j, 1. + 2j], dtype=cdouble)),
+    LinalgCase("cdouble_2",
+               array([[1. + 2j, 2 + 3j], [3 + 4j, 4 + 5j]], dtype=cdouble),
+               array([[2. + 1j, 1. + 2j, 1 + 3j], [1 - 2j, 1 - 3j, 1 - 6j]], dtype=cdouble)),
+    LinalgCase("0x0",
+               np.empty((0, 0), dtype=double),
+               np.empty((0,), dtype=double),
+               tags={'size-0'}),
+    LinalgCase("8x8",
+               np.random.rand(8, 8),
+               np.random.rand(8)),
+    LinalgCase("1x1",
+               np.random.rand(1, 1),
+               np.random.rand(1)),
+    LinalgCase("nonarray",
+               [[1, 2], [3, 4]],
+               [2, 1]),
+])
+
+# non-square test-cases
+CASES += apply_tag('nonsquare', [
+    LinalgCase("single_nsq_1",
+               array([[1., 2., 3.], [3., 4., 6.]], dtype=single),
+               array([2., 1.], dtype=single)),
+    LinalgCase("single_nsq_2",
+               array([[1., 2.], [3., 4.], [5., 6.]], dtype=single),
+               array([2., 1., 3.], dtype=single)),
+    LinalgCase("double_nsq_1",
+               array([[1., 2., 3.], [3., 4., 6.]], dtype=double),
+               array([2., 1.], dtype=double)),
+    LinalgCase("double_nsq_2",
+               array([[1., 2.], [3., 4.], [5., 6.]], dtype=double),
+               array([2., 1., 3.], dtype=double)),
+    LinalgCase("csingle_nsq_1",
+               array(
+                   [[1. + 1j, 2. + 2j, 3. - 3j], [3. - 5j, 4. + 9j, 6. + 2j]], dtype=csingle),
+               array([2. + 1j, 1. + 2j], dtype=csingle)),
+    LinalgCase("csingle_nsq_2",
+               array(
+                   [[1. + 1j, 2. + 2j], [3. - 3j, 4. - 9j], [5. - 4j, 6. + 8j]], dtype=csingle),
+               array([2. + 1j, 1. + 2j, 3. - 3j], dtype=csingle)),
+    LinalgCase("cdouble_nsq_1",
+               array(
+                   [[1. + 1j, 2. + 2j, 3. - 3j], [3. - 5j, 4. + 9j, 6. + 2j]], dtype=cdouble),
+               array([2. + 1j, 1. + 2j], dtype=cdouble)),
+    LinalgCase("cdouble_nsq_2",
+               array(
+                   [[1. + 1j, 2. + 2j], [3. - 3j, 4. - 9j], [5. - 4j, 6. + 8j]], dtype=cdouble),
+               array([2. + 1j, 1. + 2j, 3. - 3j], dtype=cdouble)),
+    LinalgCase("cdouble_nsq_1_2",
+               array(
+                   [[1. + 1j, 2. + 2j, 3. - 3j], [3. - 5j, 4. + 9j, 6. + 2j]], dtype=cdouble),
+               array([[2. + 1j, 1. + 2j], [1 - 1j, 2 - 2j]], dtype=cdouble)),
+    LinalgCase("cdouble_nsq_2_2",
+               array(
+                   [[1. + 1j, 2. + 2j], [3. - 3j, 4. - 9j], [5. - 4j, 6. + 8j]], dtype=cdouble),
+               array([[2. + 1j, 1. + 2j], [1 - 1j, 2 - 2j], [1 - 1j, 2 - 2j]], dtype=cdouble)),
+    LinalgCase("8x11",
+               np.random.rand(8, 11),
+               np.random.rand(8)),
+    LinalgCase("1x5",
+               np.random.rand(1, 5),
+               np.random.rand(1)),
+    LinalgCase("5x1",
+               np.random.rand(5, 1),
+               np.random.rand(5)),
+    LinalgCase("0x4",
+               np.random.rand(0, 4),
+               np.random.rand(0),
+               tags={'size-0'}),
+    LinalgCase("4x0",
+               np.random.rand(4, 0),
+               np.random.rand(4),
+               tags={'size-0'}),
+])
+
+# hermitian test-cases
+CASES += apply_tag('hermitian', [
+    LinalgCase("hsingle",
+               array([[1., 2.], [2., 1.]], dtype=single),
+               None),
+    LinalgCase("hdouble",
+               array([[1., 2.], [2., 1.]], dtype=double),
+               None),
+    LinalgCase("hcsingle",
+               array([[1., 2 + 3j], [2 - 3j, 1]], dtype=csingle),
+               None),
+    LinalgCase("hcdouble",
+               array([[1., 2 + 3j], [2 - 3j, 1]], dtype=cdouble),
+               None),
+    LinalgCase("hempty",
+               np.empty((0, 0), dtype=double),
+               None,
+               tags={'size-0'}),
+    LinalgCase("hnonarray",
+               [[1, 2], [2, 1]],
+               None),
+    LinalgCase("matrix_b_only",
+               array([[1., 2.], [2., 1.]]),
+               None),
+    LinalgCase("hmatrix_1x1",
+               np.random.rand(1, 1),
+               None),
+])
+
+
+#
+# Gufunc test cases
+#
+def _make_generalized_cases():
+    new_cases = []
+
+    for case in CASES:
+        if not isinstance(case.a, np.ndarray):
+            continue
+
+        a = np.array([case.a, 2 * case.a, 3 * case.a])
+        if case.b is None:
+            b = None
+        elif case.b.ndim == 1:
+            b = case.b
+        else:
+            b = np.array([case.b, 7 * case.b, 6 * case.b])
+        new_case = LinalgCase(case.name + "_tile3", a, b,
+                              tags=case.tags | {'generalized'})
+        new_cases.append(new_case)
+
+        a = np.array([case.a] * 2 * 3).reshape((3, 2) + case.a.shape)
+        if case.b is None:
+            b = None
+        elif case.b.ndim == 1:
+            b = np.array([case.b] * 2 * 3 * a.shape[-1])\
+                  .reshape((3, 2) + case.a.shape[-2:])
+        else:
+            b = np.array([case.b] * 2 * 3).reshape((3, 2) + case.b.shape)
+        new_case = LinalgCase(case.name + "_tile213", a, b,
+                              tags=case.tags | {'generalized'})
+        new_cases.append(new_case)
+
+    return new_cases
+
+
+CASES += _make_generalized_cases()
+
+
+#
+# Generate stride combination variations of the above
+#
+def _stride_comb_iter(x):
+    """
+    Generate cartesian product of strides for all axes
+    """
+
+    if not isinstance(x, np.ndarray):
+        yield x, "nop"
+        return
+
+    stride_set = [(1,)] * x.ndim
+    stride_set[-1] = (1, 3, -4)
+    if x.ndim > 1:
+        stride_set[-2] = (1, 3, -4)
+    if x.ndim > 2:
+        stride_set[-3] = (1, -4)
+
+    for repeats in itertools.product(*tuple(stride_set)):
+        new_shape = [abs(a * b) for a, b in zip(x.shape, repeats)]
+        slices = tuple(slice(None, None, repeat) for repeat in repeats)
+
+        # new array with different strides, but same data
+        xi = np.empty(new_shape, dtype=x.dtype)
+        xi.view(np.uint32).fill(0xdeadbeef)
+        xi = xi[slices]
+        xi[...] = x
+        xi = xi.view(x.__class__)
+        assert_(np.all(xi == x))
+        yield xi, "stride_" + "_".join(["%+d" % j for j in repeats])
+
+        # generate also zero strides if possible
+        if x.ndim >= 1 and x.shape[-1] == 1:
+            s = list(x.strides)
+            s[-1] = 0
+            xi = np.lib.stride_tricks.as_strided(x, strides=s)
+            yield xi, "stride_xxx_0"
+        if x.ndim >= 2 and x.shape[-2] == 1:
+            s = list(x.strides)
+            s[-2] = 0
+            xi = np.lib.stride_tricks.as_strided(x, strides=s)
+            yield xi, "stride_xxx_0_x"
+        if x.ndim >= 2 and x.shape[:-2] == (1, 1):
+            s = list(x.strides)
+            s[-1] = 0
+            s[-2] = 0
+            xi = np.lib.stride_tricks.as_strided(x, strides=s)
+            yield xi, "stride_xxx_0_0"
+
+
+def _make_strided_cases():
+    new_cases = []
+    for case in CASES:
+        for a, a_label in _stride_comb_iter(case.a):
+            for b, b_label in _stride_comb_iter(case.b):
+                new_case = LinalgCase(case.name + "_" + a_label + "_" + b_label, a, b,
+                                      tags=case.tags | {'strided'})
+                new_cases.append(new_case)
+    return new_cases
+
+
+CASES += _make_strided_cases()
+
+
+#
+# Test different routines against the above cases
+#
+class LinalgTestCase:
+    TEST_CASES = CASES
+
+    def check_cases(self, require=set(), exclude=set()):
+        """
+        Run func on each of the cases with all of the tags in require, and none
+        of the tags in exclude
+        """
+        for case in self.TEST_CASES:
+            # filter by require and exclude
+            if case.tags & require != require:
+                continue
+            if case.tags & exclude:
+                continue
+
+            try:
+                case.check(self.do)
+            except Exception as e:
+                msg = f'In test case: {case!r}\n\n'
+                msg += traceback.format_exc()
+                raise AssertionError(msg) from e
+
+
+class LinalgSquareTestCase(LinalgTestCase):
+
+    def test_sq_cases(self):
+        self.check_cases(require={'square'},
+                         exclude={'generalized', 'size-0'})
+
+    def test_empty_sq_cases(self):
+        self.check_cases(require={'square', 'size-0'},
+                         exclude={'generalized'})
+
+
+class LinalgNonsquareTestCase(LinalgTestCase):
+
+    def test_nonsq_cases(self):
+        self.check_cases(require={'nonsquare'},
+                         exclude={'generalized', 'size-0'})
+
+    def test_empty_nonsq_cases(self):
+        self.check_cases(require={'nonsquare', 'size-0'},
+                         exclude={'generalized'})
+
+
+class HermitianTestCase(LinalgTestCase):
+
+    def test_herm_cases(self):
+        self.check_cases(require={'hermitian'},
+                         exclude={'generalized', 'size-0'})
+
+    def test_empty_herm_cases(self):
+        self.check_cases(require={'hermitian', 'size-0'},
+                         exclude={'generalized'})
+
+
+class LinalgGeneralizedSquareTestCase(LinalgTestCase):
+
+    @pytest.mark.slow
+    def test_generalized_sq_cases(self):
+        self.check_cases(require={'generalized', 'square'},
+                         exclude={'size-0'})
+
+    @pytest.mark.slow
+    def test_generalized_empty_sq_cases(self):
+        self.check_cases(require={'generalized', 'square', 'size-0'})
+
+
+class LinalgGeneralizedNonsquareTestCase(LinalgTestCase):
+
+    @pytest.mark.slow
+    def test_generalized_nonsq_cases(self):
+        self.check_cases(require={'generalized', 'nonsquare'},
+                         exclude={'size-0'})
+
+    @pytest.mark.slow
+    def test_generalized_empty_nonsq_cases(self):
+        self.check_cases(require={'generalized', 'nonsquare', 'size-0'})
+
+
+class HermitianGeneralizedTestCase(LinalgTestCase):
+
+    @pytest.mark.slow
+    def test_generalized_herm_cases(self):
+        self.check_cases(require={'generalized', 'hermitian'},
+                         exclude={'size-0'})
+
+    @pytest.mark.slow
+    def test_generalized_empty_herm_cases(self):
+        self.check_cases(require={'generalized', 'hermitian', 'size-0'},
+                         exclude={'none'})
+
+
+def identity_like_generalized(a):
+    a = asarray(a)
+    if a.ndim >= 3:
+        r = np.empty(a.shape, dtype=a.dtype)
+        r[...] = identity(a.shape[-2])
+        return r
+    else:
+        return identity(a.shape[0])
+
+
+class SolveCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+    # kept apart from TestSolve for use for testing with matrices.
+    def do(self, a, b, tags):
+        x = linalg.solve(a, b)
+        if np.array(b).ndim == 1:
+            # When a is (..., M, M) and b is (M,), it is the same as when b is
+            # (M, 1), except the result has shape (..., M)
+            adotx = matmul(a, x[..., None])[..., 0]
+            assert_almost_equal(np.broadcast_to(b, adotx.shape), adotx)
+        else:
+            adotx = matmul(a, x)
+            assert_almost_equal(b, adotx)
+        assert_(consistent_subclass(x, b))
+
+
+class TestSolve(SolveCases):
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        assert_equal(linalg.solve(x, x).dtype, dtype)
+
+    def test_1_d(self):
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.arange(8).reshape(2, 2, 2)
+        b = np.arange(2).view(ArraySubclass)
+        result = linalg.solve(a, b)
+        assert result.shape == (2, 2)
+
+        # If b is anything other than 1-D it should be treated as a stack of
+        # matrices
+        b = np.arange(4).reshape(2, 2).view(ArraySubclass)
+        result = linalg.solve(a, b)
+        assert result.shape == (2, 2, 2)
+
+        b = np.arange(2).reshape(1, 2).view(ArraySubclass)
+        assert_raises(ValueError, linalg.solve, a, b)
+
+    def test_0_size(self):
+        class ArraySubclass(np.ndarray):
+            pass
+        # Test system of 0x0 matrices
+        a = np.arange(8).reshape(2, 2, 2)
+        b = np.arange(6).reshape(1, 2, 3).view(ArraySubclass)
+
+        expected = linalg.solve(a, b)[:, 0:0, :]
+        result = linalg.solve(a[:, 0:0, 0:0], b[:, 0:0, :])
+        assert_array_equal(result, expected)
+        assert_(isinstance(result, ArraySubclass))
+
+        # Test errors for non-square and only b's dimension being 0
+        assert_raises(linalg.LinAlgError, linalg.solve, a[:, 0:0, 0:1], b)
+        assert_raises(ValueError, linalg.solve, a, b[:, 0:0, :])
+
+        # Test broadcasting error
+        b = np.arange(6).reshape(1, 3, 2)  # broadcasting error
+        assert_raises(ValueError, linalg.solve, a, b)
+        assert_raises(ValueError, linalg.solve, a[0:0], b[0:0])
+
+        # Test zero "single equations" with 0x0 matrices.
+        b = np.arange(2).view(ArraySubclass)
+        expected = linalg.solve(a, b)[:, 0:0]
+        result = linalg.solve(a[:, 0:0, 0:0], b[0:0])
+        assert_array_equal(result, expected)
+        assert_(isinstance(result, ArraySubclass))
+
+        b = np.arange(3).reshape(1, 3)
+        assert_raises(ValueError, linalg.solve, a, b)
+        assert_raises(ValueError, linalg.solve, a[0:0], b[0:0])
+        assert_raises(ValueError, linalg.solve, a[:, 0:0, 0:0], b)
+
+    def test_0_size_k(self):
+        # test zero multiple equation (K=0) case.
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.arange(4).reshape(1, 2, 2)
+        b = np.arange(6).reshape(3, 2, 1).view(ArraySubclass)
+
+        expected = linalg.solve(a, b)[:, :, 0:0]
+        result = linalg.solve(a, b[:, :, 0:0])
+        assert_array_equal(result, expected)
+        assert_(isinstance(result, ArraySubclass))
+
+        # test both zero.
+        expected = linalg.solve(a, b)[:, 0:0, 0:0]
+        result = linalg.solve(a[:, 0:0, 0:0], b[:, 0:0, 0:0])
+        assert_array_equal(result, expected)
+        assert_(isinstance(result, ArraySubclass))
+
+
+class InvCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+
+    def do(self, a, b, tags):
+        a_inv = linalg.inv(a)
+        assert_almost_equal(matmul(a, a_inv),
+                            identity_like_generalized(a))
+        assert_(consistent_subclass(a_inv, a))
+
+
+class TestInv(InvCases):
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        assert_equal(linalg.inv(x).dtype, dtype)
+
+    def test_0_size(self):
+        # Check that all kinds of 0-sized arrays work
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.zeros((0, 1, 1), dtype=np.int_).view(ArraySubclass)
+        res = linalg.inv(a)
+        assert_(res.dtype.type is np.float64)
+        assert_equal(a.shape, res.shape)
+        assert_(isinstance(res, ArraySubclass))
+
+        a = np.zeros((0, 0), dtype=np.complex64).view(ArraySubclass)
+        res = linalg.inv(a)
+        assert_(res.dtype.type is np.complex64)
+        assert_equal(a.shape, res.shape)
+        assert_(isinstance(res, ArraySubclass))
+
+
+class EigvalsCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+
+    def do(self, a, b, tags):
+        ev = linalg.eigvals(a)
+        evalues, evectors = linalg.eig(a)
+        assert_almost_equal(ev, evalues)
+
+
+class TestEigvals(EigvalsCases):
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        assert_equal(linalg.eigvals(x).dtype, dtype)
+        x = np.array([[1, 0.5], [-1, 1]], dtype=dtype)
+        assert_equal(linalg.eigvals(x).dtype, get_complex_dtype(dtype))
+
+    def test_0_size(self):
+        # Check that all kinds of 0-sized arrays work
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.zeros((0, 1, 1), dtype=np.int_).view(ArraySubclass)
+        res = linalg.eigvals(a)
+        assert_(res.dtype.type is np.float64)
+        assert_equal((0, 1), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(res, np.ndarray))
+
+        a = np.zeros((0, 0), dtype=np.complex64).view(ArraySubclass)
+        res = linalg.eigvals(a)
+        assert_(res.dtype.type is np.complex64)
+        assert_equal((0,), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(res, np.ndarray))
+
+
+class EigCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+
+    def do(self, a, b, tags):
+        res = linalg.eig(a)
+        eigenvalues, eigenvectors = res.eigenvalues, res.eigenvectors
+        assert_allclose(matmul(a, eigenvectors),
+                        np.asarray(eigenvectors) * np.asarray(eigenvalues)[..., None, :],
+                        rtol=get_rtol(eigenvalues.dtype))
+        assert_(consistent_subclass(eigenvectors, a))
+
+
+class TestEig(EigCases):
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        w, v = np.linalg.eig(x)
+        assert_equal(w.dtype, dtype)
+        assert_equal(v.dtype, dtype)
+
+        x = np.array([[1, 0.5], [-1, 1]], dtype=dtype)
+        w, v = np.linalg.eig(x)
+        assert_equal(w.dtype, get_complex_dtype(dtype))
+        assert_equal(v.dtype, get_complex_dtype(dtype))
+
+    def test_0_size(self):
+        # Check that all kinds of 0-sized arrays work
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.zeros((0, 1, 1), dtype=np.int_).view(ArraySubclass)
+        res, res_v = linalg.eig(a)
+        assert_(res_v.dtype.type is np.float64)
+        assert_(res.dtype.type is np.float64)
+        assert_equal(a.shape, res_v.shape)
+        assert_equal((0, 1), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(a, np.ndarray))
+
+        a = np.zeros((0, 0), dtype=np.complex64).view(ArraySubclass)
+        res, res_v = linalg.eig(a)
+        assert_(res_v.dtype.type is np.complex64)
+        assert_(res.dtype.type is np.complex64)
+        assert_equal(a.shape, res_v.shape)
+        assert_equal((0,), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(a, np.ndarray))
+
+
+class SVDBaseTests:
+    hermitian = False
+
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        res = linalg.svd(x)
+        U, S, Vh = res.U, res.S, res.Vh
+        assert_equal(U.dtype, dtype)
+        assert_equal(S.dtype, get_real_dtype(dtype))
+        assert_equal(Vh.dtype, dtype)
+        s = linalg.svd(x, compute_uv=False, hermitian=self.hermitian)
+        assert_equal(s.dtype, get_real_dtype(dtype))
+
+
+class SVDCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+
+    def do(self, a, b, tags):
+        u, s, vt = linalg.svd(a, False)
+        assert_allclose(a, matmul(np.asarray(u) * np.asarray(s)[..., None, :],
+                                           np.asarray(vt)),
+                        rtol=get_rtol(u.dtype))
+        assert_(consistent_subclass(u, a))
+        assert_(consistent_subclass(vt, a))
+
+
+class TestSVD(SVDCases, SVDBaseTests):
+    def test_empty_identity(self):
+        """ Empty input should put an identity matrix in u or vh """
+        x = np.empty((4, 0))
+        u, s, vh = linalg.svd(x, compute_uv=True, hermitian=self.hermitian)
+        assert_equal(u.shape, (4, 4))
+        assert_equal(vh.shape, (0, 0))
+        assert_equal(u, np.eye(4))
+
+        x = np.empty((0, 4))
+        u, s, vh = linalg.svd(x, compute_uv=True, hermitian=self.hermitian)
+        assert_equal(u.shape, (0, 0))
+        assert_equal(vh.shape, (4, 4))
+        assert_equal(vh, np.eye(4))
+
+    def test_svdvals(self):
+        x = np.array([[1, 0.5], [0.5, 1]])
+        s_from_svd = linalg.svd(x, compute_uv=False, hermitian=self.hermitian)
+        s_from_svdvals = linalg.svdvals(x)
+        assert_almost_equal(s_from_svd, s_from_svdvals)
+
+
+class SVDHermitianCases(HermitianTestCase, HermitianGeneralizedTestCase):
+
+    def do(self, a, b, tags):
+        u, s, vt = linalg.svd(a, False, hermitian=True)
+        assert_allclose(a, matmul(np.asarray(u) * np.asarray(s)[..., None, :],
+                                           np.asarray(vt)),
+                        rtol=get_rtol(u.dtype))
+
+        def hermitian(mat):
+            axes = list(range(mat.ndim))
+            axes[-1], axes[-2] = axes[-2], axes[-1]
+            return np.conj(np.transpose(mat, axes=axes))
+
+        assert_almost_equal(np.matmul(u, hermitian(u)), np.broadcast_to(np.eye(u.shape[-1]), u.shape))
+        assert_almost_equal(np.matmul(vt, hermitian(vt)), np.broadcast_to(np.eye(vt.shape[-1]), vt.shape))
+        assert_equal(np.sort(s)[..., ::-1], s)
+        assert_(consistent_subclass(u, a))
+        assert_(consistent_subclass(vt, a))
+
+
+class TestSVDHermitian(SVDHermitianCases, SVDBaseTests):
+    hermitian = True
+
+
+class CondCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+    # cond(x, p) for p in (None, 2, -2)
+
+    def do(self, a, b, tags):
+        c = asarray(a)  # a might be a matrix
+        if 'size-0' in tags:
+            assert_raises(LinAlgError, linalg.cond, c)
+            return
+
+        # +-2 norms
+        s = linalg.svd(c, compute_uv=False)
+        assert_almost_equal(
+            linalg.cond(a), s[..., 0] / s[..., -1],
+            single_decimal=5, double_decimal=11)
+        assert_almost_equal(
+            linalg.cond(a, 2), s[..., 0] / s[..., -1],
+            single_decimal=5, double_decimal=11)
+        assert_almost_equal(
+            linalg.cond(a, -2), s[..., -1] / s[..., 0],
+            single_decimal=5, double_decimal=11)
+
+        # Other norms
+        cinv = np.linalg.inv(c)
+        assert_almost_equal(
+            linalg.cond(a, 1),
+            abs(c).sum(-2).max(-1) * abs(cinv).sum(-2).max(-1),
+            single_decimal=5, double_decimal=11)
+        assert_almost_equal(
+            linalg.cond(a, -1),
+            abs(c).sum(-2).min(-1) * abs(cinv).sum(-2).min(-1),
+            single_decimal=5, double_decimal=11)
+        assert_almost_equal(
+            linalg.cond(a, np.inf),
+            abs(c).sum(-1).max(-1) * abs(cinv).sum(-1).max(-1),
+            single_decimal=5, double_decimal=11)
+        assert_almost_equal(
+            linalg.cond(a, -np.inf),
+            abs(c).sum(-1).min(-1) * abs(cinv).sum(-1).min(-1),
+            single_decimal=5, double_decimal=11)
+        assert_almost_equal(
+            linalg.cond(a, 'fro'),
+            np.sqrt((abs(c)**2).sum(-1).sum(-1)
+                    * (abs(cinv)**2).sum(-1).sum(-1)),
+            single_decimal=5, double_decimal=11)
+
+
+class TestCond(CondCases):
+    @pytest.mark.parametrize('is_complex', [False, True])
+    def test_basic_nonsvd(self, is_complex):
+        # Smoketest the non-svd norms
+        A = array([[1., 0, 1], [0, -2., 0], [0, 0, 3.]])
+        if is_complex:
+            # Since A is linearly scaled, the condition number should not change
+            A = A * (1 + 1j)
+        assert_almost_equal(linalg.cond(A, inf), 4)
+        assert_almost_equal(linalg.cond(A, -inf), 2 / 3)
+        assert_almost_equal(linalg.cond(A, 1), 4)
+        assert_almost_equal(linalg.cond(A, -1), 0.5)
+        assert_almost_equal(linalg.cond(A, 'fro'), np.sqrt(265 / 12))
+
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    @pytest.mark.parametrize('norm_ord', [1, -1, 2, -2, 'fro', np.inf, -np.inf])
+    def test_cond_dtypes(self, dtype, norm_ord):
+        # Check that the condition number is computed in the same dtype
+        # as the input matrix
+        A = array([[1., 0, 1], [0, -2., 0], [0, 0, 3.]], dtype=dtype)
+        out_type = get_real_dtype(dtype)
+        assert_equal(linalg.cond(A, p=norm_ord).dtype, out_type)
+
+    def test_singular(self):
+        # Singular matrices have infinite condition number for
+        # positive norms, and negative norms shouldn't raise
+        # exceptions
+        As = [np.zeros((2, 2)), np.ones((2, 2))]
+        p_pos = [None, 1, 2, 'fro']
+        p_neg = [-1, -2]
+        for A, p in itertools.product(As, p_pos):
+            # Inversion may not hit exact infinity, so just check the
+            # number is large
+            assert_(linalg.cond(A, p) > 1e15)
+        for A, p in itertools.product(As, p_neg):
+            linalg.cond(A, p)
+
+    @pytest.mark.xfail(True, run=False,
+                       reason="Platform/LAPACK-dependent failure, "
+                              "see gh-18914")
+    def test_nan(self):
+        # nans should be passed through, not converted to infs
+        ps = [None, 1, -1, 2, -2, 'fro']
+        p_pos = [None, 1, 2, 'fro']
+
+        A = np.ones((2, 2))
+        A[0, 1] = np.nan
+        for p in ps:
+            c = linalg.cond(A, p)
+            assert_(isinstance(c, np.float64))
+            assert_(np.isnan(c))
+
+        A = np.ones((3, 2, 2))
+        A[1, 0, 1] = np.nan
+        for p in ps:
+            c = linalg.cond(A, p)
+            assert_(np.isnan(c[1]))
+            if p in p_pos:
+                assert_(c[0] > 1e15)
+                assert_(c[2] > 1e15)
+            else:
+                assert_(not np.isnan(c[0]))
+                assert_(not np.isnan(c[2]))
+
+    def test_stacked_singular(self):
+        # Check behavior when only some of the stacked matrices are
+        # singular
+        np.random.seed(1234)
+        A = np.random.rand(2, 2, 2, 2)
+        A[0, 0] = 0
+        A[1, 1] = 0
+
+        for p in (None, 1, 2, 'fro', -1, -2):
+            c = linalg.cond(A, p)
+            assert_equal(c[0, 0], np.inf)
+            assert_equal(c[1, 1], np.inf)
+            assert_(np.isfinite(c[0, 1]))
+            assert_(np.isfinite(c[1, 0]))
+
+
+class PinvCases(LinalgSquareTestCase,
+                LinalgNonsquareTestCase,
+                LinalgGeneralizedSquareTestCase,
+                LinalgGeneralizedNonsquareTestCase):
+
+    def do(self, a, b, tags):
+        a_ginv = linalg.pinv(a)
+        # `a @ a_ginv == I` does not hold if a is singular
+        dot = matmul
+        assert_almost_equal(dot(dot(a, a_ginv), a), a, single_decimal=5, double_decimal=11)
+        assert_(consistent_subclass(a_ginv, a))
+
+
+class TestPinv(PinvCases):
+    pass
+
+
+class PinvHermitianCases(HermitianTestCase, HermitianGeneralizedTestCase):
+
+    def do(self, a, b, tags):
+        a_ginv = linalg.pinv(a, hermitian=True)
+        # `a @ a_ginv == I` does not hold if a is singular
+        dot = matmul
+        assert_almost_equal(dot(dot(a, a_ginv), a), a, single_decimal=5, double_decimal=11)
+        assert_(consistent_subclass(a_ginv, a))
+
+
+class TestPinvHermitian(PinvHermitianCases):
+    pass
+
+
+def test_pinv_rtol_arg():
+    a = np.array([[1, 2, 3], [4, 1, 1], [2, 3, 1]])
+
+    assert_almost_equal(
+        np.linalg.pinv(a, rcond=0.5),
+        np.linalg.pinv(a, rtol=0.5),
+    )
+
+    with pytest.raises(
+        ValueError, match=r"`rtol` and `rcond` can't be both set."
+    ):
+        np.linalg.pinv(a, rcond=0.5, rtol=0.5)
+
+
+class DetCases(LinalgSquareTestCase, LinalgGeneralizedSquareTestCase):
+
+    def do(self, a, b, tags):
+        d = linalg.det(a)
+        res = linalg.slogdet(a)
+        s, ld = res.sign, res.logabsdet
+        if asarray(a).dtype.type in (single, double):
+            ad = asarray(a).astype(double)
+        else:
+            ad = asarray(a).astype(cdouble)
+        ev = linalg.eigvals(ad)
+        assert_almost_equal(d, multiply.reduce(ev, axis=-1))
+        assert_almost_equal(s * np.exp(ld), multiply.reduce(ev, axis=-1))
+
+        s = np.atleast_1d(s)
+        ld = np.atleast_1d(ld)
+        m = (s != 0)
+        assert_almost_equal(np.abs(s[m]), 1)
+        assert_equal(ld[~m], -inf)
+
+
+class TestDet(DetCases):
+    def test_zero(self):
+        assert_equal(linalg.det([[0.0]]), 0.0)
+        assert_equal(type(linalg.det([[0.0]])), double)
+        assert_equal(linalg.det([[0.0j]]), 0.0)
+        assert_equal(type(linalg.det([[0.0j]])), cdouble)
+
+        assert_equal(linalg.slogdet([[0.0]]), (0.0, -inf))
+        assert_equal(type(linalg.slogdet([[0.0]])[0]), double)
+        assert_equal(type(linalg.slogdet([[0.0]])[1]), double)
+        assert_equal(linalg.slogdet([[0.0j]]), (0.0j, -inf))
+        assert_equal(type(linalg.slogdet([[0.0j]])[0]), cdouble)
+        assert_equal(type(linalg.slogdet([[0.0j]])[1]), double)
+
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        assert_equal(np.linalg.det(x).dtype, dtype)
+        ph, s = np.linalg.slogdet(x)
+        assert_equal(s.dtype, get_real_dtype(dtype))
+        assert_equal(ph.dtype, dtype)
+
+    def test_0_size(self):
+        a = np.zeros((0, 0), dtype=np.complex64)
+        res = linalg.det(a)
+        assert_equal(res, 1.)
+        assert_(res.dtype.type is np.complex64)
+        res = linalg.slogdet(a)
+        assert_equal(res, (1, 0))
+        assert_(res[0].dtype.type is np.complex64)
+        assert_(res[1].dtype.type is np.float32)
+
+        a = np.zeros((0, 0), dtype=np.float64)
+        res = linalg.det(a)
+        assert_equal(res, 1.)
+        assert_(res.dtype.type is np.float64)
+        res = linalg.slogdet(a)
+        assert_equal(res, (1, 0))
+        assert_(res[0].dtype.type is np.float64)
+        assert_(res[1].dtype.type is np.float64)
+
+
+class LstsqCases(LinalgSquareTestCase, LinalgNonsquareTestCase):
+
+    def do(self, a, b, tags):
+        arr = np.asarray(a)
+        m, n = arr.shape
+        u, s, vt = linalg.svd(a, False)
+        x, residuals, rank, sv = linalg.lstsq(a, b, rcond=-1)
+        if m == 0:
+            assert_((x == 0).all())
+        if m <= n:
+            assert_almost_equal(b, dot(a, x))
+            assert_equal(rank, m)
+        else:
+            assert_equal(rank, n)
+        assert_almost_equal(sv, sv.__array_wrap__(s))
+        if rank == n and m > n:
+            expect_resids = (
+                np.asarray(abs(np.dot(a, x) - b)) ** 2).sum(axis=0)
+            expect_resids = np.asarray(expect_resids)
+            if np.asarray(b).ndim == 1:
+                expect_resids.shape = (1,)
+                assert_equal(residuals.shape, expect_resids.shape)
+        else:
+            expect_resids = np.array([]).view(type(x))
+        assert_almost_equal(residuals, expect_resids)
+        assert_(np.issubdtype(residuals.dtype, np.floating))
+        assert_(consistent_subclass(x, b))
+        assert_(consistent_subclass(residuals, b))
+
+
+class TestLstsq(LstsqCases):
+    def test_rcond(self):
+        a = np.array([[0., 1.,  0.,  1.,  2.,  0.],
+                      [0., 2.,  0.,  0.,  1.,  0.],
+                      [1., 0.,  1.,  0.,  0.,  4.],
+                      [0., 0.,  0.,  2.,  3.,  0.]]).T
+
+        b = np.array([1, 0, 0, 0, 0, 0])
+
+        x, residuals, rank, s = linalg.lstsq(a, b, rcond=-1)
+        assert_(rank == 4)
+        x, residuals, rank, s = linalg.lstsq(a, b)
+        assert_(rank == 3)
+        x, residuals, rank, s = linalg.lstsq(a, b, rcond=None)
+        assert_(rank == 3)
+
+    @pytest.mark.parametrize(["m", "n", "n_rhs"], [
+        (4, 2, 2),
+        (0, 4, 1),
+        (0, 4, 2),
+        (4, 0, 1),
+        (4, 0, 2),
+        (4, 2, 0),
+        (0, 0, 0)
+    ])
+    def test_empty_a_b(self, m, n, n_rhs):
+        a = np.arange(m * n).reshape(m, n)
+        b = np.ones((m, n_rhs))
+        x, residuals, rank, s = linalg.lstsq(a, b, rcond=None)
+        if m == 0:
+            assert_((x == 0).all())
+        assert_equal(x.shape, (n, n_rhs))
+        assert_equal(residuals.shape, ((n_rhs,) if m > n else (0,)))
+        if m > n and n_rhs > 0:
+            # residuals are exactly the squared norms of b's columns
+            r = b - np.dot(a, x)
+            assert_almost_equal(residuals, (r * r).sum(axis=-2))
+        assert_equal(rank, min(m, n))
+        assert_equal(s.shape, (min(m, n),))
+
+    def test_incompatible_dims(self):
+        # use modified version of docstring example
+        x = np.array([0, 1, 2, 3])
+        y = np.array([-1, 0.2, 0.9, 2.1, 3.3])
+        A = np.vstack([x, np.ones(len(x))]).T
+        with assert_raises_regex(LinAlgError, "Incompatible dimensions"):
+            linalg.lstsq(A, y, rcond=None)
+
+
+@pytest.mark.parametrize('dt', [np.dtype(c) for c in '?bBhHiIqQefdgFDGO'])
+class TestMatrixPower:
+
+    rshft_0 = np.eye(4)
+    rshft_1 = rshft_0[[3, 0, 1, 2]]
+    rshft_2 = rshft_0[[2, 3, 0, 1]]
+    rshft_3 = rshft_0[[1, 2, 3, 0]]
+    rshft_all = [rshft_0, rshft_1, rshft_2, rshft_3]
+    noninv = array([[1, 0], [0, 0]])
+    stacked = np.block([[[rshft_0]]] * 2)
+    # FIXME the 'e' dtype might work in future
+    dtnoinv = [object, np.dtype('e'), np.dtype('g'), np.dtype('G')]
+
+    def test_large_power(self, dt):
+        rshft = self.rshft_1.astype(dt)
+        assert_equal(
+            matrix_power(rshft, 2**100 + 2**10 + 2**5 + 0), self.rshft_0)
+        assert_equal(
+            matrix_power(rshft, 2**100 + 2**10 + 2**5 + 1), self.rshft_1)
+        assert_equal(
+            matrix_power(rshft, 2**100 + 2**10 + 2**5 + 2), self.rshft_2)
+        assert_equal(
+            matrix_power(rshft, 2**100 + 2**10 + 2**5 + 3), self.rshft_3)
+
+    def test_power_is_zero(self, dt):
+        def tz(M):
+            mz = matrix_power(M, 0)
+            assert_equal(mz, identity_like_generalized(M))
+            assert_equal(mz.dtype, M.dtype)
+
+        for mat in self.rshft_all:
+            tz(mat.astype(dt))
+            if dt != object:
+                tz(self.stacked.astype(dt))
+
+    def test_power_is_one(self, dt):
+        def tz(mat):
+            mz = matrix_power(mat, 1)
+            assert_equal(mz, mat)
+            assert_equal(mz.dtype, mat.dtype)
+
+        for mat in self.rshft_all:
+            tz(mat.astype(dt))
+            if dt != object:
+                tz(self.stacked.astype(dt))
+
+    def test_power_is_two(self, dt):
+        def tz(mat):
+            mz = matrix_power(mat, 2)
+            mmul = matmul if mat.dtype != object else dot
+            assert_equal(mz, mmul(mat, mat))
+            assert_equal(mz.dtype, mat.dtype)
+
+        for mat in self.rshft_all:
+            tz(mat.astype(dt))
+            if dt != object:
+                tz(self.stacked.astype(dt))
+
+    def test_power_is_minus_one(self, dt):
+        def tz(mat):
+            invmat = matrix_power(mat, -1)
+            mmul = matmul if mat.dtype != object else dot
+            assert_almost_equal(
+                mmul(invmat, mat), identity_like_generalized(mat))
+
+        for mat in self.rshft_all:
+            if dt not in self.dtnoinv:
+                tz(mat.astype(dt))
+
+    def test_exceptions_bad_power(self, dt):
+        mat = self.rshft_0.astype(dt)
+        assert_raises(TypeError, matrix_power, mat, 1.5)
+        assert_raises(TypeError, matrix_power, mat, [1])
+
+    def test_exceptions_non_square(self, dt):
+        assert_raises(LinAlgError, matrix_power, np.array([1], dt), 1)
+        assert_raises(LinAlgError, matrix_power, np.array([[1], [2]], dt), 1)
+        assert_raises(LinAlgError, matrix_power, np.ones((4, 3, 2), dt), 1)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_exceptions_not_invertible(self, dt):
+        if dt in self.dtnoinv:
+            return
+        mat = self.noninv.astype(dt)
+        assert_raises(LinAlgError, matrix_power, mat, -1)
+
+
+class TestEigvalshCases(HermitianTestCase, HermitianGeneralizedTestCase):
+
+    def do(self, a, b, tags):
+        # note that eigenvalue arrays returned by eig must be sorted since
+        # their order isn't guaranteed.
+        ev = linalg.eigvalsh(a, 'L')
+        evalues, evectors = linalg.eig(a)
+        evalues.sort(axis=-1)
+        assert_allclose(ev, evalues, rtol=get_rtol(ev.dtype))
+
+        ev2 = linalg.eigvalsh(a, 'U')
+        assert_allclose(ev2, evalues, rtol=get_rtol(ev.dtype))
+
+
+class TestEigvalsh:
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        w = np.linalg.eigvalsh(x)
+        assert_equal(w.dtype, get_real_dtype(dtype))
+
+    def test_invalid(self):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=np.float32)
+        assert_raises(ValueError, np.linalg.eigvalsh, x, UPLO="lrong")
+        assert_raises(ValueError, np.linalg.eigvalsh, x, "lower")
+        assert_raises(ValueError, np.linalg.eigvalsh, x, "upper")
+
+    def test_UPLO(self):
+        Klo = np.array([[0, 0], [1, 0]], dtype=np.double)
+        Kup = np.array([[0, 1], [0, 0]], dtype=np.double)
+        tgt = np.array([-1, 1], dtype=np.double)
+        rtol = get_rtol(np.double)
+
+        # Check default is 'L'
+        w = np.linalg.eigvalsh(Klo)
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'L'
+        w = np.linalg.eigvalsh(Klo, UPLO='L')
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'l'
+        w = np.linalg.eigvalsh(Klo, UPLO='l')
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'U'
+        w = np.linalg.eigvalsh(Kup, UPLO='U')
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'u'
+        w = np.linalg.eigvalsh(Kup, UPLO='u')
+        assert_allclose(w, tgt, rtol=rtol)
+
+    def test_0_size(self):
+        # Check that all kinds of 0-sized arrays work
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.zeros((0, 1, 1), dtype=np.int_).view(ArraySubclass)
+        res = linalg.eigvalsh(a)
+        assert_(res.dtype.type is np.float64)
+        assert_equal((0, 1), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(res, np.ndarray))
+
+        a = np.zeros((0, 0), dtype=np.complex64).view(ArraySubclass)
+        res = linalg.eigvalsh(a)
+        assert_(res.dtype.type is np.float32)
+        assert_equal((0,), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(res, np.ndarray))
+
+
+class TestEighCases(HermitianTestCase, HermitianGeneralizedTestCase):
+
+    def do(self, a, b, tags):
+        # note that eigenvalue arrays returned by eig must be sorted since
+        # their order isn't guaranteed.
+        res = linalg.eigh(a)
+        ev, evc = res.eigenvalues, res.eigenvectors
+        evalues, evectors = linalg.eig(a)
+        evalues.sort(axis=-1)
+        assert_almost_equal(ev, evalues)
+
+        assert_allclose(matmul(a, evc),
+                        np.asarray(ev)[..., None, :] * np.asarray(evc),
+                        rtol=get_rtol(ev.dtype))
+
+        ev2, evc2 = linalg.eigh(a, 'U')
+        assert_almost_equal(ev2, evalues)
+
+        assert_allclose(matmul(a, evc2),
+                        np.asarray(ev2)[..., None, :] * np.asarray(evc2),
+                        rtol=get_rtol(ev.dtype), err_msg=repr(a))
+
+
+class TestEigh:
+    @pytest.mark.parametrize('dtype', [single, double, csingle, cdouble])
+    def test_types(self, dtype):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=dtype)
+        w, v = np.linalg.eigh(x)
+        assert_equal(w.dtype, get_real_dtype(dtype))
+        assert_equal(v.dtype, dtype)
+
+    def test_invalid(self):
+        x = np.array([[1, 0.5], [0.5, 1]], dtype=np.float32)
+        assert_raises(ValueError, np.linalg.eigh, x, UPLO="lrong")
+        assert_raises(ValueError, np.linalg.eigh, x, "lower")
+        assert_raises(ValueError, np.linalg.eigh, x, "upper")
+
+    def test_UPLO(self):
+        Klo = np.array([[0, 0], [1, 0]], dtype=np.double)
+        Kup = np.array([[0, 1], [0, 0]], dtype=np.double)
+        tgt = np.array([-1, 1], dtype=np.double)
+        rtol = get_rtol(np.double)
+
+        # Check default is 'L'
+        w, v = np.linalg.eigh(Klo)
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'L'
+        w, v = np.linalg.eigh(Klo, UPLO='L')
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'l'
+        w, v = np.linalg.eigh(Klo, UPLO='l')
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'U'
+        w, v = np.linalg.eigh(Kup, UPLO='U')
+        assert_allclose(w, tgt, rtol=rtol)
+        # Check 'u'
+        w, v = np.linalg.eigh(Kup, UPLO='u')
+        assert_allclose(w, tgt, rtol=rtol)
+
+    def test_0_size(self):
+        # Check that all kinds of 0-sized arrays work
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.zeros((0, 1, 1), dtype=np.int_).view(ArraySubclass)
+        res, res_v = linalg.eigh(a)
+        assert_(res_v.dtype.type is np.float64)
+        assert_(res.dtype.type is np.float64)
+        assert_equal(a.shape, res_v.shape)
+        assert_equal((0, 1), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(a, np.ndarray))
+
+        a = np.zeros((0, 0), dtype=np.complex64).view(ArraySubclass)
+        res, res_v = linalg.eigh(a)
+        assert_(res_v.dtype.type is np.complex64)
+        assert_(res.dtype.type is np.float32)
+        assert_equal(a.shape, res_v.shape)
+        assert_equal((0,), res.shape)
+        # This is just for documentation, it might make sense to change:
+        assert_(isinstance(a, np.ndarray))
+
+
+class _TestNormBase:
+    dt = None
+    dec = None
+
+    @staticmethod
+    def check_dtype(x, res):
+        if issubclass(x.dtype.type, np.inexact):
+            assert_equal(res.dtype, x.real.dtype)
+        else:
+            # For integer input, don't have to test float precision of output.
+            assert_(issubclass(res.dtype.type, np.floating))
+
+
+class _TestNormGeneral(_TestNormBase):
+
+    def test_empty(self):
+        assert_equal(norm([]), 0.0)
+        assert_equal(norm(array([], dtype=self.dt)), 0.0)
+        assert_equal(norm(atleast_2d(array([], dtype=self.dt))), 0.0)
+
+    def test_vector_return_type(self):
+        a = np.array([1, 0, 1])
+
+        exact_types = np.typecodes['AllInteger']
+        inexact_types = np.typecodes['AllFloat']
+
+        all_types = exact_types + inexact_types
+
+        for each_type in all_types:
+            at = a.astype(each_type)
+
+            an = norm(at, -np.inf)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 0.0)
+
+            with warnings.catch_warnings():
+                warnings.filterwarnings(
+                    'ignore', "divide by zero encountered", RuntimeWarning)
+                an = norm(at, -1)
+                self.check_dtype(at, an)
+                assert_almost_equal(an, 0.0)
+
+            an = norm(at, 0)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 2)
+
+            an = norm(at, 1)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 2.0)
+
+            an = norm(at, 2)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, an.dtype.type(2.0)**an.dtype.type(1.0 / 2.0))
+
+            an = norm(at, 4)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, an.dtype.type(2.0)**an.dtype.type(1.0 / 4.0))
+
+            an = norm(at, np.inf)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 1.0)
+
+    def test_vector(self):
+        a = [1, 2, 3, 4]
+        b = [-1, -2, -3, -4]
+        c = [-1, 2, -3, 4]
+
+        def _test(v):
+            np.testing.assert_almost_equal(norm(v), 30 ** 0.5,
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, inf), 4.0,
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, -inf), 1.0,
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, 1), 10.0,
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, -1), 12.0 / 25,
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, 2), 30 ** 0.5,
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, -2), ((205. / 144) ** -0.5),
+                                           decimal=self.dec)
+            np.testing.assert_almost_equal(norm(v, 0), 4,
+                                           decimal=self.dec)
+
+        for v in (a, b, c,):
+            _test(v)
+
+        for v in (array(a, dtype=self.dt), array(b, dtype=self.dt),
+                  array(c, dtype=self.dt)):
+            _test(v)
+
+    def test_axis(self):
+        # Vector norms.
+        # Compare the use of `axis` with computing the norm of each row
+        # or column separately.
+        A = array([[1, 2, 3], [4, 5, 6]], dtype=self.dt)
+        for order in [None, -1, 0, 1, 2, 3, np.inf, -np.inf]:
+            expected0 = [norm(A[:, k], ord=order) for k in range(A.shape[1])]
+            assert_almost_equal(norm(A, ord=order, axis=0), expected0)
+            expected1 = [norm(A[k, :], ord=order) for k in range(A.shape[0])]
+            assert_almost_equal(norm(A, ord=order, axis=1), expected1)
+
+        # Matrix norms.
+        B = np.arange(1, 25, dtype=self.dt).reshape(2, 3, 4)
+        nd = B.ndim
+        for order in [None, -2, 2, -1, 1, np.inf, -np.inf, 'fro']:
+            for axis in itertools.combinations(range(-nd, nd), 2):
+                row_axis, col_axis = axis
+                if row_axis < 0:
+                    row_axis += nd
+                if col_axis < 0:
+                    col_axis += nd
+                if row_axis == col_axis:
+                    assert_raises(ValueError, norm, B, ord=order, axis=axis)
+                else:
+                    n = norm(B, ord=order, axis=axis)
+
+                    # The logic using k_index only works for nd = 3.
+                    # This has to be changed if nd is increased.
+                    k_index = nd - (row_axis + col_axis)
+                    if row_axis < col_axis:
+                        expected = [norm(B[:].take(k, axis=k_index), ord=order)
+                                    for k in range(B.shape[k_index])]
+                    else:
+                        expected = [norm(B[:].take(k, axis=k_index).T, ord=order)
+                                    for k in range(B.shape[k_index])]
+                    assert_almost_equal(n, expected)
+
+    def test_keepdims(self):
+        A = np.arange(1, 25, dtype=self.dt).reshape(2, 3, 4)
+
+        allclose_err = 'order {0}, axis = {1}'
+        shape_err = 'Shape mismatch found {0}, expected {1}, order={2}, axis={3}'
+
+        # check the order=None, axis=None case
+        expected = norm(A, ord=None, axis=None)
+        found = norm(A, ord=None, axis=None, keepdims=True)
+        assert_allclose(np.squeeze(found), expected,
+                        err_msg=allclose_err.format(None, None))
+        expected_shape = (1, 1, 1)
+        assert_(found.shape == expected_shape,
+                shape_err.format(found.shape, expected_shape, None, None))
+
+        # Vector norms.
+        for order in [None, -1, 0, 1, 2, 3, np.inf, -np.inf]:
+            for k in range(A.ndim):
+                expected = norm(A, ord=order, axis=k)
+                found = norm(A, ord=order, axis=k, keepdims=True)
+                assert_allclose(np.squeeze(found), expected,
+                                err_msg=allclose_err.format(order, k))
+                expected_shape = list(A.shape)
+                expected_shape[k] = 1
+                expected_shape = tuple(expected_shape)
+                assert_(found.shape == expected_shape,
+                        shape_err.format(found.shape, expected_shape, order, k))
+
+        # Matrix norms.
+        for order in [None, -2, 2, -1, 1, np.inf, -np.inf, 'fro', 'nuc']:
+            for k in itertools.permutations(range(A.ndim), 2):
+                expected = norm(A, ord=order, axis=k)
+                found = norm(A, ord=order, axis=k, keepdims=True)
+                assert_allclose(np.squeeze(found), expected,
+                                err_msg=allclose_err.format(order, k))
+                expected_shape = list(A.shape)
+                expected_shape[k[0]] = 1
+                expected_shape[k[1]] = 1
+                expected_shape = tuple(expected_shape)
+                assert_(found.shape == expected_shape,
+                        shape_err.format(found.shape, expected_shape, order, k))
+
+
+class _TestNorm2D(_TestNormBase):
+    # Define the part for 2d arrays separately, so we can subclass this
+    # and run the tests using np.matrix in matrixlib.tests.test_matrix_linalg.
+    array = np.array
+
+    def test_matrix_empty(self):
+        assert_equal(norm(self.array([[]], dtype=self.dt)), 0.0)
+
+    def test_matrix_return_type(self):
+        a = self.array([[1, 0, 1], [0, 1, 1]])
+
+        exact_types = np.typecodes['AllInteger']
+
+        # float32, complex64, float64, complex128 types are the only types
+        # allowed by `linalg`, which performs the matrix operations used
+        # within `norm`.
+        inexact_types = 'fdFD'
+
+        all_types = exact_types + inexact_types
+
+        for each_type in all_types:
+            at = a.astype(each_type)
+
+            an = norm(at, -np.inf)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 2.0)
+
+            with warnings.catch_warnings():
+                warnings.filterwarnings(
+                    'ignore', "divide by zero encountered", RuntimeWarning)
+                an = norm(at, -1)
+                self.check_dtype(at, an)
+                assert_almost_equal(an, 1.0)
+
+            an = norm(at, 1)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 2.0)
+
+            an = norm(at, 2)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 3.0**(1.0 / 2.0))
+
+            an = norm(at, -2)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 1.0)
+
+            an = norm(at, np.inf)
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 2.0)
+
+            an = norm(at, 'fro')
+            self.check_dtype(at, an)
+            assert_almost_equal(an, 2.0)
+
+            an = norm(at, 'nuc')
+            self.check_dtype(at, an)
+            # Lower bar needed to support low precision floats.
+            # They end up being off by 1 in the 7th place.
+            np.testing.assert_almost_equal(an, 2.7320508075688772, decimal=6)
+
+    def test_matrix_2x2(self):
+        A = self.array([[1, 3], [5, 7]], dtype=self.dt)
+        assert_almost_equal(norm(A), 84 ** 0.5)
+        assert_almost_equal(norm(A, 'fro'), 84 ** 0.5)
+        assert_almost_equal(norm(A, 'nuc'), 10.0)
+        assert_almost_equal(norm(A, inf), 12.0)
+        assert_almost_equal(norm(A, -inf), 4.0)
+        assert_almost_equal(norm(A, 1), 10.0)
+        assert_almost_equal(norm(A, -1), 6.0)
+        assert_almost_equal(norm(A, 2), 9.1231056256176615)
+        assert_almost_equal(norm(A, -2), 0.87689437438234041)
+
+        assert_raises(ValueError, norm, A, 'nofro')
+        assert_raises(ValueError, norm, A, -3)
+        assert_raises(ValueError, norm, A, 0)
+
+    def test_matrix_3x3(self):
+        # This test has been added because the 2x2 example
+        # happened to have equal nuclear norm and induced 1-norm.
+        # The 1/10 scaling factor accommodates the absolute tolerance
+        # used in assert_almost_equal.
+        A = (1 / 10) * \
+            self.array([[1, 2, 3], [6, 0, 5], [3, 2, 1]], dtype=self.dt)
+        assert_almost_equal(norm(A), (1 / 10) * 89 ** 0.5)
+        assert_almost_equal(norm(A, 'fro'), (1 / 10) * 89 ** 0.5)
+        assert_almost_equal(norm(A, 'nuc'), 1.3366836911774836)
+        assert_almost_equal(norm(A, inf), 1.1)
+        assert_almost_equal(norm(A, -inf), 0.6)
+        assert_almost_equal(norm(A, 1), 1.0)
+        assert_almost_equal(norm(A, -1), 0.4)
+        assert_almost_equal(norm(A, 2), 0.88722940323461277)
+        assert_almost_equal(norm(A, -2), 0.19456584790481812)
+
+    def test_bad_args(self):
+        # Check that bad arguments raise the appropriate exceptions.
+
+        A = self.array([[1, 2, 3], [4, 5, 6]], dtype=self.dt)
+        B = np.arange(1, 25, dtype=self.dt).reshape(2, 3, 4)
+
+        # Using `axis=<integer>` or passing in a 1-D array implies vector
+        # norms are being computed, so also using `ord='fro'`
+        # or `ord='nuc'` or any other string raises a ValueError.
+        assert_raises(ValueError, norm, A, 'fro', 0)
+        assert_raises(ValueError, norm, A, 'nuc', 0)
+        assert_raises(ValueError, norm, [3, 4], 'fro', None)
+        assert_raises(ValueError, norm, [3, 4], 'nuc', None)
+        assert_raises(ValueError, norm, [3, 4], 'test', None)
+
+        # Similarly, norm should raise an exception when ord is any finite
+        # number other than 1, 2, -1 or -2 when computing matrix norms.
+        for order in [0, 3]:
+            assert_raises(ValueError, norm, A, order, None)
+            assert_raises(ValueError, norm, A, order, (0, 1))
+            assert_raises(ValueError, norm, B, order, (1, 2))
+
+        # Invalid axis
+        assert_raises(AxisError, norm, B, None, 3)
+        assert_raises(AxisError, norm, B, None, (2, 3))
+        assert_raises(ValueError, norm, B, None, (0, 1, 2))
+
+
+class _TestNorm(_TestNorm2D, _TestNormGeneral):
+    pass
+
+
+class TestNorm_NonSystematic:
+
+    def test_longdouble_norm(self):
+        # Non-regression test: p-norm of longdouble would previously raise
+        # UnboundLocalError.
+        x = np.arange(10, dtype=np.longdouble)
+        old_assert_almost_equal(norm(x, ord=3), 12.65, decimal=2)
+
+    def test_intmin(self):
+        # Non-regression test: p-norm of signed integer would previously do
+        # float cast and abs in the wrong order.
+        x = np.array([-2 ** 31], dtype=np.int32)
+        old_assert_almost_equal(norm(x, ord=3), 2 ** 31, decimal=5)
+
+    def test_complex_high_ord(self):
+        # gh-4156
+        d = np.empty((2,), dtype=np.clongdouble)
+        d[0] = 6 + 7j
+        d[1] = -6 + 7j
+        res = 11.615898132184
+        old_assert_almost_equal(np.linalg.norm(d, ord=3), res, decimal=10)
+        d = d.astype(np.complex128)
+        old_assert_almost_equal(np.linalg.norm(d, ord=3), res, decimal=9)
+        d = d.astype(np.complex64)
+        old_assert_almost_equal(np.linalg.norm(d, ord=3), res, decimal=5)
+
+
+# Separate definitions so we can use them for matrix tests.
+class _TestNormDoubleBase(_TestNormBase):
+    dt = np.double
+    dec = 12
+
+
+class _TestNormSingleBase(_TestNormBase):
+    dt = np.float32
+    dec = 6
+
+
+class _TestNormInt64Base(_TestNormBase):
+    dt = np.int64
+    dec = 12
+
+
+class TestNormDouble(_TestNorm, _TestNormDoubleBase):
+    pass
+
+
+class TestNormSingle(_TestNorm, _TestNormSingleBase):
+    pass
+
+
+class TestNormInt64(_TestNorm, _TestNormInt64Base):
+    pass
+
+
+class TestMatrixRank:
+
+    def test_matrix_rank(self):
+        # Full rank matrix
+        assert_equal(4, matrix_rank(np.eye(4)))
+        # rank deficient matrix
+        I = np.eye(4)
+        I[-1, -1] = 0.
+        assert_equal(matrix_rank(I), 3)
+        # All zeros - zero rank
+        assert_equal(matrix_rank(np.zeros((4, 4))), 0)
+        # 1 dimension - rank 1 unless all 0
+        assert_equal(matrix_rank([1, 0, 0, 0]), 1)
+        assert_equal(matrix_rank(np.zeros((4,))), 0)
+        # accepts array-like
+        assert_equal(matrix_rank([1]), 1)
+        # greater than 2 dimensions treated as stacked matrices
+        ms = np.array([I, np.eye(4), np.zeros((4, 4))])
+        assert_equal(matrix_rank(ms), np.array([3, 4, 0]))
+        # works on scalar
+        assert_equal(matrix_rank(1), 1)
+
+        with assert_raises_regex(
+            ValueError, "`tol` and `rtol` can\'t be both set."
+        ):
+            matrix_rank(I, tol=0.01, rtol=0.01)
+
+    def test_symmetric_rank(self):
+        assert_equal(4, matrix_rank(np.eye(4), hermitian=True))
+        assert_equal(1, matrix_rank(np.ones((4, 4)), hermitian=True))
+        assert_equal(0, matrix_rank(np.zeros((4, 4)), hermitian=True))
+        # rank deficient matrix
+        I = np.eye(4)
+        I[-1, -1] = 0.
+        assert_equal(3, matrix_rank(I, hermitian=True))
+        # manually supplied tolerance
+        I[-1, -1] = 1e-8
+        assert_equal(4, matrix_rank(I, hermitian=True, tol=0.99e-8))
+        assert_equal(3, matrix_rank(I, hermitian=True, tol=1.01e-8))
+
+
+def test_reduced_rank():
+    # Test matrices with reduced rank
+    rng = np.random.RandomState(20120714)
+    for i in range(100):
+        # Make a rank deficient matrix
+        X = rng.normal(size=(40, 10))
+        X[:, 0] = X[:, 1] + X[:, 2]
+        # Assert that matrix_rank detected deficiency
+        assert_equal(matrix_rank(X), 9)
+        X[:, 3] = X[:, 4] + X[:, 5]
+        assert_equal(matrix_rank(X), 8)
+
+
+class TestQR:
+    # Define the array class here, so run this on matrices elsewhere.
+    array = np.array
+
+    def check_qr(self, a):
+        # This test expects the argument `a` to be an ndarray or
+        # a subclass of an ndarray of inexact type.
+        a_type = type(a)
+        a_dtype = a.dtype
+        m, n = a.shape
+        k = min(m, n)
+
+        # mode == 'complete'
+        res = linalg.qr(a, mode='complete')
+        Q, R = res.Q, res.R
+        assert_(Q.dtype == a_dtype)
+        assert_(R.dtype == a_dtype)
+        assert_(isinstance(Q, a_type))
+        assert_(isinstance(R, a_type))
+        assert_(Q.shape == (m, m))
+        assert_(R.shape == (m, n))
+        assert_almost_equal(dot(Q, R), a)
+        assert_almost_equal(dot(Q.T.conj(), Q), np.eye(m))
+        assert_almost_equal(np.triu(R), R)
+
+        # mode == 'reduced'
+        q1, r1 = linalg.qr(a, mode='reduced')
+        assert_(q1.dtype == a_dtype)
+        assert_(r1.dtype == a_dtype)
+        assert_(isinstance(q1, a_type))
+        assert_(isinstance(r1, a_type))
+        assert_(q1.shape == (m, k))
+        assert_(r1.shape == (k, n))
+        assert_almost_equal(dot(q1, r1), a)
+        assert_almost_equal(dot(q1.T.conj(), q1), np.eye(k))
+        assert_almost_equal(np.triu(r1), r1)
+
+        # mode == 'r'
+        r2 = linalg.qr(a, mode='r')
+        assert_(r2.dtype == a_dtype)
+        assert_(isinstance(r2, a_type))
+        assert_almost_equal(r2, r1)
+
+    @pytest.mark.parametrize(["m", "n"], [
+        (3, 0),
+        (0, 3),
+        (0, 0)
+    ])
+    def test_qr_empty(self, m, n):
+        k = min(m, n)
+        a = np.empty((m, n))
+
+        self.check_qr(a)
+
+        h, tau = np.linalg.qr(a, mode='raw')
+        assert_equal(h.dtype, np.double)
+        assert_equal(tau.dtype, np.double)
+        assert_equal(h.shape, (n, m))
+        assert_equal(tau.shape, (k,))
+
+    def test_mode_raw(self):
+        # The factorization is not unique and varies between libraries,
+        # so it is not possible to check against known values. Functional
+        # testing is a possibility, but awaits the exposure of more
+        # of the functions in lapack_lite. Consequently, this test is
+        # very limited in scope. Note that the results are in FORTRAN
+        # order, hence the h arrays are transposed.
+        a = self.array([[1, 2], [3, 4], [5, 6]], dtype=np.double)
+
+        # Test double
+        h, tau = linalg.qr(a, mode='raw')
+        assert_(h.dtype == np.double)
+        assert_(tau.dtype == np.double)
+        assert_(h.shape == (2, 3))
+        assert_(tau.shape == (2,))
+
+        h, tau = linalg.qr(a.T, mode='raw')
+        assert_(h.dtype == np.double)
+        assert_(tau.dtype == np.double)
+        assert_(h.shape == (3, 2))
+        assert_(tau.shape == (2,))
+
+    def test_mode_all_but_economic(self):
+        a = self.array([[1, 2], [3, 4]])
+        b = self.array([[1, 2], [3, 4], [5, 6]])
+        for dt in "fd":
+            m1 = a.astype(dt)
+            m2 = b.astype(dt)
+            self.check_qr(m1)
+            self.check_qr(m2)
+            self.check_qr(m2.T)
+
+        for dt in "fd":
+            m1 = 1 + 1j * a.astype(dt)
+            m2 = 1 + 1j * b.astype(dt)
+            self.check_qr(m1)
+            self.check_qr(m2)
+            self.check_qr(m2.T)
+
+    def check_qr_stacked(self, a):
+        # This test expects the argument `a` to be an ndarray or
+        # a subclass of an ndarray of inexact type.
+        a_type = type(a)
+        a_dtype = a.dtype
+        m, n = a.shape[-2:]
+        k = min(m, n)
+
+        # mode == 'complete'
+        q, r = linalg.qr(a, mode='complete')
+        assert_(q.dtype == a_dtype)
+        assert_(r.dtype == a_dtype)
+        assert_(isinstance(q, a_type))
+        assert_(isinstance(r, a_type))
+        assert_(q.shape[-2:] == (m, m))
+        assert_(r.shape[-2:] == (m, n))
+        assert_almost_equal(matmul(q, r), a)
+        I_mat = np.identity(q.shape[-1])
+        stack_I_mat = np.broadcast_to(I_mat,
+                        q.shape[:-2] + (q.shape[-1],) * 2)
+        assert_almost_equal(matmul(swapaxes(q, -1, -2).conj(), q), stack_I_mat)
+        assert_almost_equal(np.triu(r[..., :, :]), r)
+
+        # mode == 'reduced'
+        q1, r1 = linalg.qr(a, mode='reduced')
+        assert_(q1.dtype == a_dtype)
+        assert_(r1.dtype == a_dtype)
+        assert_(isinstance(q1, a_type))
+        assert_(isinstance(r1, a_type))
+        assert_(q1.shape[-2:] == (m, k))
+        assert_(r1.shape[-2:] == (k, n))
+        assert_almost_equal(matmul(q1, r1), a)
+        I_mat = np.identity(q1.shape[-1])
+        stack_I_mat = np.broadcast_to(I_mat,
+                        q1.shape[:-2] + (q1.shape[-1],) * 2)
+        assert_almost_equal(matmul(swapaxes(q1, -1, -2).conj(), q1),
+                            stack_I_mat)
+        assert_almost_equal(np.triu(r1[..., :, :]), r1)
+
+        # mode == 'r'
+        r2 = linalg.qr(a, mode='r')
+        assert_(r2.dtype == a_dtype)
+        assert_(isinstance(r2, a_type))
+        assert_almost_equal(r2, r1)
+
+    @pytest.mark.parametrize("size", [
+        (3, 4), (4, 3), (4, 4),
+        (3, 0), (0, 3)])
+    @pytest.mark.parametrize("outer_size", [
+        (2, 2), (2,), (2, 3, 4)])
+    @pytest.mark.parametrize("dt", [
+        np.single, np.double,
+        np.csingle, np.cdouble])
+    def test_stacked_inputs(self, outer_size, size, dt):
+
+        rng = np.random.default_rng(123)
+        A = rng.normal(size=outer_size + size).astype(dt)
+        B = rng.normal(size=outer_size + size).astype(dt)
+        self.check_qr_stacked(A)
+        self.check_qr_stacked(A + 1.j * B)
+
+
+class TestCholesky:
+
+    @pytest.mark.parametrize(
+        'shape', [(1, 1), (2, 2), (3, 3), (50, 50), (3, 10, 10)]
+    )
+    @pytest.mark.parametrize(
+        'dtype', (np.float32, np.float64, np.complex64, np.complex128)
+    )
+    @pytest.mark.parametrize(
+        'upper', [False, True])
+    def test_basic_property(self, shape, dtype, upper):
+        np.random.seed(1)
+        a = np.random.randn(*shape)
+        if np.issubdtype(dtype, np.complexfloating):
+            a = a + 1j * np.random.randn(*shape)
+
+        t = list(range(len(shape)))
+        t[-2:] = -1, -2
+
+        a = np.matmul(a.transpose(t).conj(), a)
+        a = np.asarray(a, dtype=dtype)
+
+        c = np.linalg.cholesky(a, upper=upper)
+
+        # Check A = L L^H or A = U^H U
+        if upper:
+            b = np.matmul(c.transpose(t).conj(), c)
+        else:
+            b = np.matmul(c, c.transpose(t).conj())
+
+        atol = 500 * a.shape[0] * np.finfo(dtype).eps
+        assert_allclose(b, a, atol=atol, err_msg=f'{shape} {dtype}\n{a}\n{c}')
+
+        # Check diag(L or U) is real and positive
+        d = np.diagonal(c, axis1=-2, axis2=-1)
+        assert_(np.all(np.isreal(d)))
+        assert_(np.all(d >= 0))
+
+    def test_0_size(self):
+        class ArraySubclass(np.ndarray):
+            pass
+        a = np.zeros((0, 1, 1), dtype=np.int_).view(ArraySubclass)
+        res = linalg.cholesky(a)
+        assert_equal(a.shape, res.shape)
+        assert_(res.dtype.type is np.float64)
+        # for documentation purpose:
+        assert_(isinstance(res, np.ndarray))
+
+        a = np.zeros((1, 0, 0), dtype=np.complex64).view(ArraySubclass)
+        res = linalg.cholesky(a)
+        assert_equal(a.shape, res.shape)
+        assert_(res.dtype.type is np.complex64)
+        assert_(isinstance(res, np.ndarray))
+
+    def test_upper_lower_arg(self):
+        # Explicit test of upper argument that also checks the default.
+        a = np.array([[1 + 0j, 0 - 2j], [0 + 2j, 5 + 0j]])
+
+        assert_equal(linalg.cholesky(a), linalg.cholesky(a, upper=False))
+
+        assert_equal(
+            linalg.cholesky(a, upper=True),
+            linalg.cholesky(a).T.conj()
+        )
+
+
+class TestOuter:
+    arr1 = np.arange(3)
+    arr2 = np.arange(3)
+    expected = np.array(
+        [[0, 0, 0],
+         [0, 1, 2],
+         [0, 2, 4]]
+    )
+
+    assert_array_equal(np.linalg.outer(arr1, arr2), expected)
+
+    with assert_raises_regex(
+        ValueError, "Input arrays must be one-dimensional"
+    ):
+        np.linalg.outer(arr1[:, np.newaxis], arr2)
+
+
+def test_byteorder_check():
+    # Byte order check should pass for native order
+    if sys.byteorder == 'little':
+        native = '<'
+    else:
+        native = '>'
+
+    for dtt in (np.float32, np.float64):
+        arr = np.eye(4, dtype=dtt)
+        n_arr = arr.view(arr.dtype.newbyteorder(native))
+        sw_arr = arr.view(arr.dtype.newbyteorder("S")).byteswap()
+        assert_equal(arr.dtype.byteorder, '=')
+        for routine in (linalg.inv, linalg.det, linalg.pinv):
+            # Normal call
+            res = routine(arr)
+            # Native but not '='
+            assert_array_equal(res, routine(n_arr))
+            # Swapped
+            assert_array_equal(res, routine(sw_arr))
+
+
+@pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+def test_generalized_raise_multiloop():
+    # It should raise an error even if the error doesn't occur in the
+    # last iteration of the ufunc inner loop
+
+    invertible = np.array([[1, 2], [3, 4]])
+    non_invertible = np.array([[1, 1], [1, 1]])
+
+    x = np.zeros([4, 4, 2, 2])[1::2]
+    x[...] = invertible
+    x[0, 0] = non_invertible
+
+    assert_raises(np.linalg.LinAlgError, np.linalg.inv, x)
+
+
+@pytest.mark.skipif(
+    threading.active_count() > 1,
+    reason="skipping test that uses fork because there are multiple threads")
+@pytest.mark.skipif(
+    NOGIL_BUILD,
+    reason="Cannot safely use fork in tests on the free-threaded build")
+def test_xerbla_override():
+    # Check that our xerbla has been successfully linked in. If it is not,
+    # the default xerbla routine is called, which prints a message to stdout
+    # and may, or may not, abort the process depending on the LAPACK package.
+
+    XERBLA_OK = 255
+
+    try:
+        pid = os.fork()
+    except (OSError, AttributeError):
+        # fork failed, or not running on POSIX
+        pytest.skip("Not POSIX or fork failed.")
+
+    if pid == 0:
+        # child; close i/o file handles
+        os.close(1)
+        os.close(0)
+        # Avoid producing core files.
+        import resource
+        resource.setrlimit(resource.RLIMIT_CORE, (0, 0))
+        # These calls may abort.
+        try:
+            np.linalg.lapack_lite.xerbla()
+        except ValueError:
+            pass
+        except Exception:
+            os._exit(os.EX_CONFIG)
+
+        try:
+            a = np.array([[1.]])
+            np.linalg.lapack_lite.dorgqr(
+                1, 1, 1, a,
+                0,  # <- invalid value
+                a, a, 0, 0)
+        except ValueError as e:
+            if "DORGQR parameter number 5" in str(e):
+                # success, reuse error code to mark success as
+                # FORTRAN STOP returns as success.
+                os._exit(XERBLA_OK)
+
+        # Did not abort, but our xerbla was not linked in.
+        os._exit(os.EX_CONFIG)
+    else:
+        # parent
+        pid, status = os.wait()
+        if os.WEXITSTATUS(status) != XERBLA_OK:
+            pytest.skip('Numpy xerbla not linked in.')
+
+
+@pytest.mark.skipif(IS_WASM, reason="Cannot start subprocess")
+@pytest.mark.slow
+def test_sdot_bug_8577():
+    # Regression test that loading certain other libraries does not
+    # result to wrong results in float32 linear algebra.
+    #
+    # There's a bug gh-8577 on OSX that can trigger this, and perhaps
+    # there are also other situations in which it occurs.
+    #
+    # Do the check in a separate process.
+
+    bad_libs = ['PyQt5.QtWidgets', 'IPython']
+
+    template = textwrap.dedent("""
+    import sys
+    {before}
+    try:
+        import {bad_lib}
+    except ImportError:
+        sys.exit(0)
+    {after}
+    x = np.ones(2, dtype=np.float32)
+    sys.exit(0 if np.allclose(x.dot(x), 2.0) else 1)
+    """)
+
+    for bad_lib in bad_libs:
+        code = template.format(before="import numpy as np", after="",
+                               bad_lib=bad_lib)
+        subprocess.check_call([sys.executable, "-c", code])
+
+        # Swapped import order
+        code = template.format(after="import numpy as np", before="",
+                               bad_lib=bad_lib)
+        subprocess.check_call([sys.executable, "-c", code])
+
+
+class TestMultiDot:
+
+    def test_basic_function_with_three_arguments(self):
+        # multi_dot with three arguments uses a fast hand coded algorithm to
+        # determine the optimal order. Therefore test it separately.
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+
+        assert_almost_equal(multi_dot([A, B, C]), A.dot(B).dot(C))
+        assert_almost_equal(multi_dot([A, B, C]), np.dot(A, np.dot(B, C)))
+
+    def test_basic_function_with_two_arguments(self):
+        # separate code path with two arguments
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+
+        assert_almost_equal(multi_dot([A, B]), A.dot(B))
+        assert_almost_equal(multi_dot([A, B]), np.dot(A, B))
+
+    def test_basic_function_with_dynamic_programming_optimization(self):
+        # multi_dot with four or more arguments uses the dynamic programming
+        # optimization and therefore deserve a separate
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+        D = np.random.random((2, 1))
+        assert_almost_equal(multi_dot([A, B, C, D]), A.dot(B).dot(C).dot(D))
+
+    def test_vector_as_first_argument(self):
+        # The first argument can be 1-D
+        A1d = np.random.random(2)  # 1-D
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+        D = np.random.random((2, 2))
+
+        # the result should be 1-D
+        assert_equal(multi_dot([A1d, B, C, D]).shape, (2,))
+
+    def test_vector_as_last_argument(self):
+        # The last argument can be 1-D
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+        D1d = np.random.random(2)  # 1-D
+
+        # the result should be 1-D
+        assert_equal(multi_dot([A, B, C, D1d]).shape, (6,))
+
+    def test_vector_as_first_and_last_argument(self):
+        # The first and last arguments can be 1-D
+        A1d = np.random.random(2)  # 1-D
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+        D1d = np.random.random(2)  # 1-D
+
+        # the result should be a scalar
+        assert_equal(multi_dot([A1d, B, C, D1d]).shape, ())
+
+    def test_three_arguments_and_out(self):
+        # multi_dot with three arguments uses a fast hand coded algorithm to
+        # determine the optimal order. Therefore test it separately.
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+
+        out = np.zeros((6, 2))
+        ret = multi_dot([A, B, C], out=out)
+        assert out is ret
+        assert_almost_equal(out, A.dot(B).dot(C))
+        assert_almost_equal(out, np.dot(A, np.dot(B, C)))
+
+    def test_two_arguments_and_out(self):
+        # separate code path with two arguments
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+        out = np.zeros((6, 6))
+        ret = multi_dot([A, B], out=out)
+        assert out is ret
+        assert_almost_equal(out, A.dot(B))
+        assert_almost_equal(out, np.dot(A, B))
+
+    def test_dynamic_programming_optimization_and_out(self):
+        # multi_dot with four or more arguments uses the dynamic programming
+        # optimization and therefore deserve a separate test
+        A = np.random.random((6, 2))
+        B = np.random.random((2, 6))
+        C = np.random.random((6, 2))
+        D = np.random.random((2, 1))
+        out = np.zeros((6, 1))
+        ret = multi_dot([A, B, C, D], out=out)
+        assert out is ret
+        assert_almost_equal(out, A.dot(B).dot(C).dot(D))
+
+    def test_dynamic_programming_logic(self):
+        # Test for the dynamic programming part
+        # This test is directly taken from Cormen page 376.
+        arrays = [np.random.random((30, 35)),
+                  np.random.random((35, 15)),
+                  np.random.random((15, 5)),
+                  np.random.random((5, 10)),
+                  np.random.random((10, 20)),
+                  np.random.random((20, 25))]
+        m_expected = np.array([[0., 15750., 7875., 9375., 11875., 15125.],
+                               [0.,     0., 2625., 4375.,  7125., 10500.],
+                               [0.,     0.,    0.,  750.,  2500.,  5375.],
+                               [0.,     0.,    0.,    0.,  1000.,  3500.],
+                               [0.,     0.,    0.,    0.,     0.,  5000.],
+                               [0.,     0.,    0.,    0.,     0.,     0.]])
+        s_expected = np.array([[0,  1,  1,  3,  3,  3],
+                               [0,  0,  2,  3,  3,  3],
+                               [0,  0,  0,  3,  3,  3],
+                               [0,  0,  0,  0,  4,  5],
+                               [0,  0,  0,  0,  0,  5],
+                               [0,  0,  0,  0,  0,  0]], dtype=int)
+        s_expected -= 1  # Cormen uses 1-based index, python does not.
+
+        s, m = _multi_dot_matrix_chain_order(arrays, return_costs=True)
+
+        # Only the upper triangular part (without the diagonal) is interesting.
+        assert_almost_equal(np.triu(s[:-1, 1:]),
+                            np.triu(s_expected[:-1, 1:]))
+        assert_almost_equal(np.triu(m), np.triu(m_expected))
+
+    def test_too_few_input_arrays(self):
+        assert_raises(ValueError, multi_dot, [])
+        assert_raises(ValueError, multi_dot, [np.random.random((3, 3))])
+
+
+class TestTensorinv:
+
+    @pytest.mark.parametrize("arr, ind", [
+        (np.ones((4, 6, 8, 2)), 2),
+        (np.ones((3, 3, 2)), 1),
+        ])
+    def test_non_square_handling(self, arr, ind):
+        with assert_raises(LinAlgError):
+            linalg.tensorinv(arr, ind=ind)
+
+    @pytest.mark.parametrize("shape, ind", [
+        # examples from docstring
+        ((4, 6, 8, 3), 2),
+        ((24, 8, 3), 1),
+        ])
+    def test_tensorinv_shape(self, shape, ind):
+        a = np.eye(24).reshape(shape)
+        ainv = linalg.tensorinv(a=a, ind=ind)
+        expected = a.shape[ind:] + a.shape[:ind]
+        actual = ainv.shape
+        assert_equal(actual, expected)
+
+    @pytest.mark.parametrize("ind", [
+        0, -2,
+        ])
+    def test_tensorinv_ind_limit(self, ind):
+        a = np.eye(24).reshape((4, 6, 8, 3))
+        with assert_raises(ValueError):
+            linalg.tensorinv(a=a, ind=ind)
+
+    def test_tensorinv_result(self):
+        # mimic a docstring example
+        a = np.eye(24).reshape((24, 8, 3))
+        ainv = linalg.tensorinv(a, ind=1)
+        b = np.ones(24)
+        assert_allclose(np.tensordot(ainv, b, 1), np.linalg.tensorsolve(a, b))
+
+
+class TestTensorsolve:
+
+    @pytest.mark.parametrize("a, axes", [
+        (np.ones((4, 6, 8, 2)), None),
+        (np.ones((3, 3, 2)), (0, 2)),
+        ])
+    def test_non_square_handling(self, a, axes):
+        with assert_raises(LinAlgError):
+            b = np.ones(a.shape[:2])
+            linalg.tensorsolve(a, b, axes=axes)
+
+    @pytest.mark.parametrize("shape",
+        [(2, 3, 6), (3, 4, 4, 3), (0, 3, 3, 0)],
+    )
+    def test_tensorsolve_result(self, shape):
+        a = np.random.randn(*shape)
+        b = np.ones(a.shape[:2])
+        x = np.linalg.tensorsolve(a, b)
+        assert_allclose(np.tensordot(a, x, axes=len(x.shape)), b)
+
+
+def test_unsupported_commontype():
+    # linalg gracefully handles unsupported type
+    arr = np.array([[1, -2], [2, 5]], dtype='float16')
+    with assert_raises_regex(TypeError, "unsupported in linalg"):
+        linalg.cholesky(arr)
+
+
+#@pytest.mark.slow
+#@pytest.mark.xfail(not HAS_LAPACK64, run=False,
+#                   reason="Numpy not compiled with 64-bit BLAS/LAPACK")
+#@requires_memory(free_bytes=16e9)
+@pytest.mark.skip(reason="Bad memory reports lead to OOM in ci testing")
+def test_blas64_dot():
+    n = 2**32
+    a = np.zeros([1, n], dtype=np.float32)
+    b = np.ones([1, 1], dtype=np.float32)
+    a[0, -1] = 1
+    c = np.dot(b, a)
+    assert_equal(c[0, -1], 1)
+
+
+@pytest.mark.xfail(not HAS_LAPACK64,
+                   reason="Numpy not compiled with 64-bit BLAS/LAPACK")
+def test_blas64_geqrf_lwork_smoketest():
+    # Smoke test LAPACK geqrf lwork call with 64-bit integers
+    dtype = np.float64
+    lapack_routine = np.linalg.lapack_lite.dgeqrf
+
+    m = 2**32 + 1
+    n = 2**32 + 1
+    lda = m
+
+    # Dummy arrays, not referenced by the lapack routine, so don't
+    # need to be of the right size
+    a = np.zeros([1, 1], dtype=dtype)
+    work = np.zeros([1], dtype=dtype)
+    tau = np.zeros([1], dtype=dtype)
+
+    # Size query
+    results = lapack_routine(m, n, a, lda, tau, work, -1, 0)
+    assert_equal(results['info'], 0)
+    assert_equal(results['m'], m)
+    assert_equal(results['n'], m)
+
+    # Should result to an integer of a reasonable size
+    lwork = int(work.item())
+    assert_(2**32 < lwork < 2**42)
+
+
+def test_diagonal():
+    # Here we only test if selected axes are compatible
+    # with Array API (last two). Core implementation
+    # of `diagonal` is tested in `test_multiarray.py`.
+    x = np.arange(60).reshape((3, 4, 5))
+    actual = np.linalg.diagonal(x)
+    expected = np.array(
+        [
+            [0,  6, 12, 18],
+            [20, 26, 32, 38],
+            [40, 46, 52, 58],
+        ]
+    )
+    assert_equal(actual, expected)
+
+
+def test_trace():
+    # Here we only test if selected axes are compatible
+    # with Array API (last two). Core implementation
+    # of `trace` is tested in `test_multiarray.py`.
+    x = np.arange(60).reshape((3, 4, 5))
+    actual = np.linalg.trace(x)
+    expected = np.array([36, 116, 196])
+
+    assert_equal(actual, expected)
+
+
+def test_cross():
+    x = np.arange(9).reshape((3, 3))
+    actual = np.linalg.cross(x, x + 1)
+    expected = np.array([
+        [-1, 2, -1],
+        [-1, 2, -1],
+        [-1, 2, -1],
+    ])
+
+    assert_equal(actual, expected)
+
+    # We test that lists are converted to arrays.
+    u = [1, 2, 3]
+    v = [4, 5, 6]
+    actual = np.linalg.cross(u, v)
+    expected = array([-3,  6, -3])
+
+    assert_equal(actual, expected)
+
+    with assert_raises_regex(
+        ValueError,
+        r"input arrays must be \(arrays of\) 3-dimensional vectors"
+    ):
+        x_2dim = x[:, 1:]
+        np.linalg.cross(x_2dim, x_2dim)
+
+
+def test_tensordot():
+    # np.linalg.tensordot is just an alias for np.tensordot
+    x = np.arange(6).reshape((2, 3))
+
+    assert np.linalg.tensordot(x, x) == 55
+    assert np.linalg.tensordot(x, x, axes=[(0, 1), (0, 1)]) == 55
+
+
+def test_matmul():
+    # np.linalg.matmul and np.matmul only differs in the number
+    # of arguments in the signature
+    x = np.arange(6).reshape((2, 3))
+    actual = np.linalg.matmul(x, x.T)
+    expected = np.array([[5, 14], [14, 50]])
+
+    assert_equal(actual, expected)
+
+
+def test_matrix_transpose():
+    x = np.arange(6).reshape((2, 3))
+    actual = np.linalg.matrix_transpose(x)
+    expected = x.T
+
+    assert_equal(actual, expected)
+
+    with assert_raises_regex(
+        ValueError, "array must be at least 2-dimensional"
+    ):
+        np.linalg.matrix_transpose(x[:, 0])
+
+
+def test_matrix_norm():
+    x = np.arange(9).reshape((3, 3))
+    actual = np.linalg.matrix_norm(x)
+
+    assert_almost_equal(actual, np.float64(14.2828), double_decimal=3)
+
+    actual = np.linalg.matrix_norm(x, keepdims=True)
+
+    assert_almost_equal(actual, np.array([[14.2828]]), double_decimal=3)
+
+
+def test_matrix_norm_empty():
+    for shape in [(0, 2), (2, 0), (0, 0)]:
+        for dtype in [np.float64, np.float32, np.int32]:
+            x = np.zeros(shape, dtype)
+            assert_equal(np.linalg.matrix_norm(x, ord="fro"), 0)
+            assert_equal(np.linalg.matrix_norm(x, ord="nuc"), 0)
+            assert_equal(np.linalg.matrix_norm(x, ord=1), 0)
+            assert_equal(np.linalg.matrix_norm(x, ord=2), 0)
+            assert_equal(np.linalg.matrix_norm(x, ord=np.inf), 0)
+
+def test_vector_norm():
+    x = np.arange(9).reshape((3, 3))
+    actual = np.linalg.vector_norm(x)
+
+    assert_almost_equal(actual, np.float64(14.2828), double_decimal=3)
+
+    actual = np.linalg.vector_norm(x, axis=0)
+
+    assert_almost_equal(
+        actual, np.array([6.7082, 8.124, 9.6436]), double_decimal=3
+    )
+
+    actual = np.linalg.vector_norm(x, keepdims=True)
+    expected = np.full((1, 1), 14.2828, dtype='float64')
+    assert_equal(actual.shape, expected.shape)
+    assert_almost_equal(actual, expected, double_decimal=3)
+
+
+def test_vector_norm_empty():
+    for dtype in [np.float64, np.float32, np.int32]:
+        x = np.zeros(0, dtype)
+        assert_equal(np.linalg.vector_norm(x, ord=1), 0)
+        assert_equal(np.linalg.vector_norm(x, ord=2), 0)
+        assert_equal(np.linalg.vector_norm(x, ord=np.inf), 0)
diff --git a/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..351177807c610528e8ca65de236a0d2e53d521ee
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/linalg/tests/test_regression.py
@@ -0,0 +1,190 @@
+""" Test functions for linalg module
+"""
+
+import pytest
+
+import numpy as np
+from numpy import arange, array, dot, float64, linalg, transpose
+from numpy.testing import (
+    assert_,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_array_less,
+    assert_equal,
+    assert_raises,
+)
+
+
+class TestRegression:
+
+    def test_eig_build(self):
+        # Ticket #652
+        rva = array([1.03221168e+02 + 0.j,
+                     -1.91843603e+01 + 0.j,
+                     -6.04004526e-01 + 15.84422474j,
+                     -6.04004526e-01 - 15.84422474j,
+                     -1.13692929e+01 + 0.j,
+                     -6.57612485e-01 + 10.41755503j,
+                     -6.57612485e-01 - 10.41755503j,
+                     1.82126812e+01 + 0.j,
+                     1.06011014e+01 + 0.j,
+                     7.80732773e+00 + 0.j,
+                     -7.65390898e-01 + 0.j,
+                     1.51971555e-15 + 0.j,
+                     -1.51308713e-15 + 0.j])
+        a = arange(13 * 13, dtype=float64)
+        a = a.reshape((13, 13))
+        a = a % 17
+        va, ve = linalg.eig(a)
+        va.sort()
+        rva.sort()
+        assert_array_almost_equal(va, rva)
+
+    def test_eigh_build(self):
+        # Ticket 662.
+        rvals = [68.60568999, 89.57756725, 106.67185574]
+
+        cov = array([[77.70273908,  3.51489954, 15.64602427],
+                     [ 3.51489954, 88.97013878, -1.07431931],
+                     [15.64602427, -1.07431931, 98.18223512]])
+
+        vals, vecs = linalg.eigh(cov)
+        assert_array_almost_equal(vals, rvals)
+
+    def test_svd_build(self):
+        # Ticket 627.
+        a = array([[0., 1.], [1., 1.], [2., 1.], [3., 1.]])
+        m, n = a.shape
+        u, s, vh = linalg.svd(a)
+
+        b = dot(transpose(u[:, n:]), a)
+
+        assert_array_almost_equal(b, np.zeros((2, 2)))
+
+    def test_norm_vector_badarg(self):
+        # Regression for #786: Frobenius norm for vectors raises
+        # ValueError.
+        assert_raises(ValueError, linalg.norm, array([1., 2., 3.]), 'fro')
+
+    def test_lapack_endian(self):
+        # For bug #1482
+        a = array([[ 5.7998084, -2.1825367],
+                   [-2.1825367,  9.85910595]], dtype='>f8')
+        b = array(a, dtype='<f8')
+
+        ap = linalg.cholesky(a)
+        bp = linalg.cholesky(b)
+        assert_array_equal(ap, bp)
+
+    def test_large_svd_32bit(self):
+        # See gh-4442, 64bit would require very large/slow matrices.
+        x = np.eye(1000, 66)
+        np.linalg.svd(x)
+
+    def test_svd_no_uv(self):
+        # gh-4733
+        for shape in (3, 4), (4, 4), (4, 3):
+            for t in float, complex:
+                a = np.ones(shape, dtype=t)
+                w = linalg.svd(a, compute_uv=False)
+                c = np.count_nonzero(np.absolute(w) > 0.5)
+                assert_equal(c, 1)
+                assert_equal(np.linalg.matrix_rank(a), 1)
+                assert_array_less(1, np.linalg.norm(a, ord=2))
+
+                w_svdvals = linalg.svdvals(a)
+                assert_array_almost_equal(w, w_svdvals)
+
+    def test_norm_object_array(self):
+        # gh-7575
+        testvector = np.array([np.array([0, 1]), 0, 0], dtype=object)
+
+        norm = linalg.norm(testvector)
+        assert_array_equal(norm, [0, 1])
+        assert_(norm.dtype == np.dtype('float64'))
+
+        norm = linalg.norm(testvector, ord=1)
+        assert_array_equal(norm, [0, 1])
+        assert_(norm.dtype != np.dtype('float64'))
+
+        norm = linalg.norm(testvector, ord=2)
+        assert_array_equal(norm, [0, 1])
+        assert_(norm.dtype == np.dtype('float64'))
+
+        assert_raises(ValueError, linalg.norm, testvector, ord='fro')
+        assert_raises(ValueError, linalg.norm, testvector, ord='nuc')
+        assert_raises(ValueError, linalg.norm, testvector, ord=np.inf)
+        assert_raises(ValueError, linalg.norm, testvector, ord=-np.inf)
+        assert_raises(ValueError, linalg.norm, testvector, ord=0)
+        assert_raises(ValueError, linalg.norm, testvector, ord=-1)
+        assert_raises(ValueError, linalg.norm, testvector, ord=-2)
+
+        testmatrix = np.array([[np.array([0, 1]), 0, 0],
+                               [0,                0, 0]], dtype=object)
+
+        norm = linalg.norm(testmatrix)
+        assert_array_equal(norm, [0, 1])
+        assert_(norm.dtype == np.dtype('float64'))
+
+        norm = linalg.norm(testmatrix, ord='fro')
+        assert_array_equal(norm, [0, 1])
+        assert_(norm.dtype == np.dtype('float64'))
+
+        assert_raises(TypeError, linalg.norm, testmatrix, ord='nuc')
+        assert_raises(ValueError, linalg.norm, testmatrix, ord=np.inf)
+        assert_raises(ValueError, linalg.norm, testmatrix, ord=-np.inf)
+        assert_raises(ValueError, linalg.norm, testmatrix, ord=0)
+        assert_raises(ValueError, linalg.norm, testmatrix, ord=1)
+        assert_raises(ValueError, linalg.norm, testmatrix, ord=-1)
+        assert_raises(TypeError, linalg.norm, testmatrix, ord=2)
+        assert_raises(TypeError, linalg.norm, testmatrix, ord=-2)
+        assert_raises(ValueError, linalg.norm, testmatrix, ord=3)
+
+    def test_lstsq_complex_larger_rhs(self):
+        # gh-9891
+        size = 20
+        n_rhs = 70
+        G = np.random.randn(size, size) + 1j * np.random.randn(size, size)
+        u = np.random.randn(size, n_rhs) + 1j * np.random.randn(size, n_rhs)
+        b = G.dot(u)
+        # This should work without segmentation fault.
+        u_lstsq, res, rank, sv = linalg.lstsq(G, b, rcond=None)
+        # check results just in case
+        assert_array_almost_equal(u_lstsq, u)
+
+    @pytest.mark.parametrize("upper", [True, False])
+    def test_cholesky_empty_array(self, upper):
+        # gh-25840 - upper=True hung before.
+        res = np.linalg.cholesky(np.zeros((0, 0)), upper=upper)
+        assert res.size == 0
+
+    @pytest.mark.parametrize("rtol", [0.0, [0.0] * 4, np.zeros((4,))])
+    def test_matrix_rank_rtol_argument(self, rtol):
+        # gh-25877
+        x = np.zeros((4, 3, 2))
+        res = np.linalg.matrix_rank(x, rtol=rtol)
+        assert res.shape == (4,)
+
+    @pytest.mark.thread_unsafe(reason="test is already testing threads with openblas")
+    def test_openblas_threading(self):
+        # gh-27036
+        # Test whether matrix multiplication involving a large matrix always
+        # gives the same (correct) answer
+        x = np.arange(500000, dtype=np.float64)
+        src = np.vstack((x, -10 * x)).T
+        matrix = np.array([[0, 1], [1, 0]])
+        expected = np.vstack((-10 * x, x)).T  # src @ matrix
+        for i in range(200):
+            result = src @ matrix
+            mismatches = (~np.isclose(result, expected)).sum()
+            if mismatches != 0:
+                assert False, ("unexpected result from matmul, "
+                    "probably due to OpenBLAS threading issues")
+
+    def test_norm_linux_arm(self):
+        # gh-30816
+        a = np.arange(20000) / 50000
+        b = a + 1j * np.roll(np.flip(a), 12345)
+        norm = np.linalg.norm(b)
+        assert_almost_equal(norm, 46.18628948075393)
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diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_arrayobject.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_arrayobject.py
new file mode 100644
index 0000000000000000000000000000000000000000..8b2d98d6b43e9bfb8cd43a1b7971a77fb2bf3dac
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_arrayobject.py
@@ -0,0 +1,40 @@
+import pytest
+
+import numpy as np
+from numpy.ma import masked_array
+from numpy.testing import assert_array_equal
+
+
+def test_matrix_transpose_raises_error_for_1d():
+    msg = "matrix transpose with ndim < 2 is undefined"
+    ma_arr = masked_array(data=[1, 2, 3, 4, 5, 6],
+                          mask=[1, 0, 1, 1, 1, 0])
+    with pytest.raises(ValueError, match=msg):
+        ma_arr.mT
+
+
+def test_matrix_transpose_equals_transpose_2d():
+    ma_arr = masked_array(data=[[1, 2, 3], [4, 5, 6]],
+                          mask=[[1, 0, 1], [1, 1, 0]])
+    assert_array_equal(ma_arr.T, ma_arr.mT)
+
+
+ARRAY_SHAPES_TO_TEST = (
+    (5, 2),
+    (5, 2, 3),
+    (5, 2, 3, 4),
+)
+
+
+@pytest.mark.parametrize("shape", ARRAY_SHAPES_TO_TEST)
+def test_matrix_transpose_equals_swapaxes(shape):
+    num_of_axes = len(shape)
+    vec = np.arange(shape[-1])
+    arr = np.broadcast_to(vec, shape)
+
+    rng = np.random.default_rng(42)
+    mask = rng.choice([0, 1], size=shape)
+    ma_arr = masked_array(data=arr, mask=mask)
+
+    tgt = np.swapaxes(arr, num_of_axes - 2, num_of_axes - 1)
+    assert_array_equal(tgt, ma_arr.mT)
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_core.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_core.py
new file mode 100644
index 0000000000000000000000000000000000000000..c11db8416c7a4f1f3cbb7a0b88829f9d89235a61
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_core.py
@@ -0,0 +1,6015 @@
+"""Tests suite for MaskedArray & subclassing.
+
+:author: Pierre Gerard-Marchant
+:contact: pierregm_at_uga_dot_edu
+"""
+__author__ = "Pierre GF Gerard-Marchant"
+
+import copy
+import inspect
+import itertools
+import operator
+import pickle
+import sys
+import textwrap
+import warnings
+from functools import reduce
+
+import pytest
+
+import numpy as np
+import numpy._core.fromnumeric as fromnumeric
+import numpy._core.umath as umath
+import numpy.ma.core
+from numpy import ndarray
+from numpy._utils import asbytes
+from numpy.exceptions import AxisError
+from numpy.ma.core import (
+    MAError,
+    MaskedArray,
+    MaskError,
+    MaskType,
+    abs,
+    absolute,
+    add,
+    all,
+    allclose,
+    allequal,
+    alltrue,
+    angle,
+    anom,
+    arange,
+    arccos,
+    arccosh,
+    arcsin,
+    arctan,
+    arctan2,
+    argsort,
+    array,
+    asarray,
+    choose,
+    concatenate,
+    conjugate,
+    cos,
+    cosh,
+    count,
+    default_fill_value,
+    diag,
+    divide,
+    empty,
+    empty_like,
+    equal,
+    exp,
+    filled,
+    fix_invalid,
+    flatten_mask,
+    flatten_structured_array,
+    fromflex,
+    getmask,
+    getmaskarray,
+    greater,
+    greater_equal,
+    identity,
+    inner,
+    isMaskedArray,
+    less,
+    less_equal,
+    log,
+    log10,
+    make_mask,
+    make_mask_descr,
+    mask_or,
+    masked,
+    masked_array,
+    masked_equal,
+    masked_greater,
+    masked_greater_equal,
+    masked_inside,
+    masked_less,
+    masked_less_equal,
+    masked_not_equal,
+    masked_outside,
+    masked_print_option,
+    masked_values,
+    masked_where,
+    max,
+    maximum,
+    maximum_fill_value,
+    min,
+    minimum,
+    minimum_fill_value,
+    mod,
+    multiply,
+    mvoid,
+    nomask,
+    not_equal,
+    ones,
+    ones_like,
+    outer,
+    power,
+    product,
+    put,
+    putmask,
+    ravel,
+    repeat,
+    reshape,
+    resize,
+    shape,
+    sin,
+    sinh,
+    sometrue,
+    sort,
+    sqrt,
+    subtract,
+    sum,
+    take,
+    tan,
+    tanh,
+    transpose,
+    where,
+    zeros,
+    zeros_like,
+)
+from numpy.ma.testutils import (
+    assert_,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_equal_records,
+    assert_mask_equal,
+    assert_not_equal,
+    fail_if_equal,
+)
+from numpy.testing import IS_WASM, assert_raises, temppath
+from numpy.testing._private.utils import requires_memory
+
+pi = np.pi
+
+
+# For parametrized numeric testing
+num_dts = [np.dtype(dt_) for dt_ in '?bhilqBHILQefdgFD']
+num_ids = [dt_.char for dt_ in num_dts]
+
+WARNING_MESSAGE = ("setting an item on a masked array which has a shared "
+                   "mask will not copy")
+WARNING_MARK_SPEC = f"ignore:.*{WARNING_MESSAGE}:numpy.ma.core.MaskedArrayFutureWarning"
+class TestMaskedArray:
+    # Base test class for MaskedArrays.
+
+    # message for warning filters
+    def _create_data(self):
+        # Base data definition.
+        x = np.array([1., 1., 1., -2., pi / 2.0, 4., 5., -10., 10., 1., 2., 3.])
+        y = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.])
+        a10 = 10.
+        m1 = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
+        m2 = [0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1]
+        xm = masked_array(x, mask=m1)
+        ym = masked_array(y, mask=m2)
+        z = np.array([-.5, 0., .5, .8])
+        zm = masked_array(z, mask=[0, 1, 0, 0])
+        xf = np.where(m1, 1e+20, x)
+        xm.set_fill_value(1e+20)
+        return x, y, a10, m1, m2, xm, ym, z, zm, xf
+
+    def test_basicattributes(self):
+        # Tests some basic array attributes.
+        a = array([1, 3, 2])
+        b = array([1, 3, 2], mask=[1, 0, 1])
+        assert_equal(a.ndim, 1)
+        assert_equal(b.ndim, 1)
+        assert_equal(a.size, 3)
+        assert_equal(b.size, 3)
+        assert_equal(a.shape, (3,))
+        assert_equal(b.shape, (3,))
+
+    def test_basic0d(self):
+        # Checks masking a scalar
+        x = masked_array(0)
+        assert_equal(str(x), '0')
+        x = masked_array(0, mask=True)
+        assert_equal(str(x), str(masked_print_option))
+        x = masked_array(0, mask=False)
+        assert_equal(str(x), '0')
+        x = array(0, mask=1)
+        assert_(x.filled().dtype is x._data.dtype)
+
+    def test_basic1d(self):
+        # Test of basic array creation and properties in 1 dimension.
+        x, _, _, m1, _, xm, ym, z, zm, xf = self._create_data()
+        assert_(not isMaskedArray(x))
+        assert_(isMaskedArray(xm))
+        assert_((xm - ym).filled(0).any())
+        fail_if_equal(xm.mask.astype(int), ym.mask.astype(int))
+        s = x.shape
+        assert_equal(np.shape(xm), s)
+        assert_equal(xm.shape, s)
+        assert_equal(xm.dtype, x.dtype)
+        assert_equal(zm.dtype, z.dtype)
+        assert_equal(xm.size, reduce(lambda x, y: x * y, s))
+        assert_equal(count(xm), len(m1) - reduce(lambda x, y: x + y, m1))
+        assert_array_equal(xm, xf)
+        assert_array_equal(filled(xm, 1.e20), xf)
+        assert_array_equal(x, xm)
+
+    def test_basic2d(self):
+        # Test of basic array creation and properties in 2 dimensions.
+        x, y, _, m1, _, xm, ym, _, _, xf = self._create_data()
+        for s in [(4, 3), (6, 2)]:
+            x = x.reshape(s)
+            y = y.reshape(s)
+            xm = xm.reshape(s)
+            ym = ym.reshape(s)
+            xf = xf.reshape(s)
+
+            assert_(not isMaskedArray(x))
+            assert_(isMaskedArray(xm))
+            assert_equal(shape(xm), s)
+            assert_equal(xm.shape, s)
+            assert_equal(xm.size, reduce(lambda x, y: x * y, s))
+            assert_equal(count(xm), len(m1) - reduce(lambda x, y: x + y, m1))
+            assert_equal(xm, xf)
+            assert_equal(filled(xm, 1.e20), xf)
+            assert_equal(x, xm)
+
+    def test_concatenate_basic(self):
+        # Tests concatenations.
+        x, y, _, _, _, xm, ym, _, _, _ = self._create_data()
+        # basic concatenation
+        assert_equal(np.concatenate((x, y)), concatenate((xm, ym)))
+        assert_equal(np.concatenate((x, y)), concatenate((x, y)))
+        assert_equal(np.concatenate((x, y)), concatenate((xm, y)))
+        assert_equal(np.concatenate((x, y, x)), concatenate((x, ym, x)))
+
+    def test_concatenate_alongaxis(self):
+        # Tests concatenations.
+        x, y, _, m1, m2, xm, ym, z, _, xf = self._create_data()
+        # Concatenation along an axis
+        s = (3, 4)
+        x = x.reshape(s)
+        y = y.reshape(s)
+        xm = xm.reshape(s)
+        ym = ym.reshape(s)
+        xf = xf.reshape(s)
+
+        assert_equal(xm.mask, np.reshape(m1, s))
+        assert_equal(ym.mask, np.reshape(m2, s))
+        xmym = concatenate((xm, ym), 1)
+        assert_equal(np.concatenate((x, y), 1), xmym)
+        assert_equal(np.concatenate((xm.mask, ym.mask), 1), xmym._mask)
+
+        x = zeros(2)
+        y = array(ones(2), mask=[False, True])
+        z = concatenate((x, y))
+        assert_array_equal(z, [0, 0, 1, 1])
+        assert_array_equal(z.mask, [False, False, False, True])
+        z = concatenate((y, x))
+        assert_array_equal(z, [1, 1, 0, 0])
+        assert_array_equal(z.mask, [False, True, False, False])
+
+    def test_concatenate_flexible(self):
+        # Tests the concatenation on flexible arrays.
+        data = masked_array(list(zip(np.random.rand(10),
+                                     np.arange(10))),
+                            dtype=[('a', float), ('b', int)])
+
+        test = concatenate([data[:5], data[5:]])
+        assert_equal_records(test, data)
+
+    def test_creation_ndmin(self):
+        # Check the use of ndmin
+        x = array([1, 2, 3], mask=[1, 0, 0], ndmin=2)
+        assert_equal(x.shape, (1, 3))
+        assert_equal(x._data, [[1, 2, 3]])
+        assert_equal(x._mask, [[1, 0, 0]])
+
+    def test_creation_ndmin_from_maskedarray(self):
+        # Make sure we're not losing the original mask w/ ndmin
+        x = array([1, 2, 3])
+        x[-1] = masked
+        xx = array(x, ndmin=2, dtype=float)
+        assert_equal(x.shape, x._mask.shape)
+        assert_equal(xx.shape, xx._mask.shape)
+
+    def test_creation_maskcreation(self):
+        # Tests how masks are initialized at the creation of Maskedarrays.
+        data = arange(24, dtype=float)
+        data[[3, 6, 15]] = masked
+        dma_1 = MaskedArray(data)
+        assert_equal(dma_1.mask, data.mask)
+        dma_2 = MaskedArray(dma_1)
+        assert_equal(dma_2.mask, dma_1.mask)
+        dma_3 = MaskedArray(dma_1, mask=[1, 0, 0, 0] * 6)
+        fail_if_equal(dma_3.mask, dma_1.mask)
+
+        x = array([1, 2, 3], mask=True)
+        assert_equal(x._mask, [True, True, True])
+        x = array([1, 2, 3], mask=False)
+        assert_equal(x._mask, [False, False, False])
+        y = array([1, 2, 3], mask=x._mask, copy=False)
+        assert_(np.may_share_memory(x.mask, y.mask))
+        y = array([1, 2, 3], mask=x._mask, copy=True)
+        assert_(not np.may_share_memory(x.mask, y.mask))
+        x = array([1, 2, 3], mask=None)
+        assert_equal(x._mask, [False, False, False])
+
+    def test_masked_singleton_array_creation_warns(self):
+        # The first works, but should not (ideally), there may be no way
+        # to solve this, however, as long as `np.ma.masked` is an ndarray.
+        np.array(np.ma.masked)
+        with pytest.warns(UserWarning):
+            # Tries to create a float array, using `float(np.ma.masked)`.
+            # We may want to define this is invalid behaviour in the future!
+            # (requiring np.ma.masked to be a known NumPy scalar probably
+            # with a DType.)
+            np.array([3., np.ma.masked])
+
+    def test_creation_with_list_of_maskedarrays(self):
+        # Tests creating a masked array from a list of masked arrays.
+        x = array(np.arange(5), mask=[1, 0, 0, 0, 0])
+        data = array((x, x[::-1]))
+        assert_equal(data, [[0, 1, 2, 3, 4], [4, 3, 2, 1, 0]])
+        assert_equal(data._mask, [[1, 0, 0, 0, 0], [0, 0, 0, 0, 1]])
+
+        x.mask = nomask
+        data = array((x, x[::-1]))
+        assert_equal(data, [[0, 1, 2, 3, 4], [4, 3, 2, 1, 0]])
+        assert_(data.mask is nomask)
+
+    def test_creation_with_list_of_maskedarrays_no_bool_cast(self):
+        # Tests the regression in gh-18551
+        masked_str = np.ma.masked_array(['a', 'b'], mask=[True, False])
+        normal_int = np.arange(2)
+        res = np.ma.asarray([masked_str, normal_int], dtype="U21")
+        assert_array_equal(res.mask, [[True, False], [False, False]])
+
+        # The above only failed due a long chain of oddity, try also with
+        # an object array that cannot be converted to bool always:
+        class NotBool:
+            def __bool__(self):
+                raise ValueError("not a bool!")
+        masked_obj = np.ma.masked_array([NotBool(), 'b'], mask=[True, False])
+        # Check that the NotBool actually fails like we would expect:
+        with pytest.raises(ValueError, match="not a bool!"):
+            np.asarray([masked_obj], dtype=bool)
+
+        res = np.ma.asarray([masked_obj, normal_int])
+        assert_array_equal(res.mask, [[True, False], [False, False]])
+
+    def test_creation_from_ndarray_with_padding(self):
+        x = np.array([('A', 0)], dtype={'names': ['f0', 'f1'],
+                                        'formats': ['S4', 'i8'],
+                                        'offsets': [0, 8]})
+        array(x)  # used to fail due to 'V' padding field in x.dtype.descr
+
+    def test_unknown_keyword_parameter(self):
+        with pytest.raises(TypeError, match="unexpected keyword argument"):
+            MaskedArray([1, 2, 3], maks=[0, 1, 0])  # `mask` is misspelled.
+
+    def test_asarray(self):
+        xm = self._create_data()[5]
+        xm.fill_value = -9999
+        xm._hardmask = True
+        xmm = asarray(xm)
+        assert_equal(xmm._data, xm._data)
+        assert_equal(xmm._mask, xm._mask)
+        assert_equal(xmm.fill_value, xm.fill_value)
+        assert_equal(xmm._hardmask, xm._hardmask)
+
+    def test_asarray_default_order(self):
+        # See Issue #6646
+        m = np.eye(3).T
+        assert_(not m.flags.c_contiguous)
+
+        new_m = asarray(m)
+        assert_(new_m.flags.c_contiguous)
+
+    def test_asarray_enforce_order(self):
+        # See Issue #6646
+        m = np.eye(3).T
+        assert_(not m.flags.c_contiguous)
+
+        new_m = asarray(m, order='C')
+        assert_(new_m.flags.c_contiguous)
+
+    def test_fix_invalid(self):
+        # Checks fix_invalid.
+        with np.errstate(invalid='ignore'):
+            data = masked_array([np.nan, 0., 1.], mask=[0, 0, 1])
+            data_fixed = fix_invalid(data)
+            assert_equal(data_fixed._data, [data.fill_value, 0., 1.])
+            assert_equal(data_fixed._mask, [1., 0., 1.])
+
+    def test_maskedelement(self):
+        # Test of masked element
+        x = arange(6)
+        x[1] = masked
+        assert_(str(masked) == '--')
+        assert_(x[1] is masked)
+        assert_equal(filled(x[1], 0), 0)
+
+    def test_set_element_as_object(self):
+        # Tests setting elements with object
+        a = empty(1, dtype=object)
+        x = (1, 2, 3, 4, 5)
+        a[0] = x
+        assert_equal(a[0], x)
+        assert_(a[0] is x)
+
+        import datetime
+        dt = datetime.datetime.now()
+        a[0] = dt
+        assert_(a[0] is dt)
+
+    def test_indexing(self):
+        # Tests conversions and indexing
+        x1 = np.array([1, 2, 4, 3])
+        x2 = array(x1, mask=[1, 0, 0, 0])
+        x3 = array(x1, mask=[0, 1, 0, 1])
+        x4 = array(x1)
+        # test conversion to strings
+        str(x2)  # raises?
+        repr(x2)  # raises?
+        assert_equal(np.sort(x1), sort(x2, endwith=False))
+        # tests of indexing
+        assert_(type(x2[1]) is type(x1[1]))
+        assert_(x1[1] == x2[1])
+        assert_(x2[0] is masked)
+        assert_equal(x1[2], x2[2])
+        assert_equal(x1[2:5], x2[2:5])
+        assert_equal(x1[:], x2[:])
+        assert_equal(x1[1:], x3[1:])
+        x1[2] = 9
+        x2[2] = 9
+        assert_equal(x1, x2)
+        x1[1:3] = 99
+        x2[1:3] = 99
+        assert_equal(x1, x2)
+        x2[1] = masked
+        assert_equal(x1, x2)
+        x2[1:3] = masked
+        assert_equal(x1, x2)
+        x2[:] = x1
+        x2[1] = masked
+        assert_(allequal(getmask(x2), array([0, 1, 0, 0])))
+        x3[:] = masked_array([1, 2, 3, 4], [0, 1, 1, 0])
+        assert_(allequal(getmask(x3), array([0, 1, 1, 0])))
+        x4[:] = masked_array([1, 2, 3, 4], [0, 1, 1, 0])
+        assert_(allequal(getmask(x4), array([0, 1, 1, 0])))
+        assert_(allequal(x4, array([1, 2, 3, 4])))
+        x1 = np.arange(5) * 1.0
+        x2 = masked_values(x1, 3.0)
+        assert_equal(x1, x2)
+        assert_(allequal(array([0, 0, 0, 1, 0], MaskType), x2.mask))
+        assert_equal(3.0, x2.fill_value)
+        x1 = array([1, 'hello', 2, 3], object)
+        x2 = np.array([1, 'hello', 2, 3], object)
+        s1 = x1[1]
+        s2 = x2[1]
+        assert_equal(type(s2), str)
+        assert_equal(type(s1), str)
+        assert_equal(s1, s2)
+        assert_(x1[1:1].shape == (0,))
+
+    def test_setitem_no_warning(self):
+        # Setitem shouldn't warn, because the assignment might be masked
+        # and warning for a masked assignment is weird (see gh-23000)
+        # (When the value is masked, otherwise a warning would be acceptable
+        # but is not given currently.)
+        x = np.ma.arange(60).reshape((6, 10))
+        index = (slice(1, 5, 2), [7, 5])
+        value = np.ma.masked_all((2, 2))
+        value._data[...] = np.inf  # not a valid integer...
+        x[index] = value
+        # The masked scalar is special cased, but test anyway (it's NaN):
+        x[...] = np.ma.masked
+        # Finally, a large value that cannot be cast to the float32 `x`
+        x = np.ma.arange(3., dtype=np.float32)
+        value = np.ma.array([2e234, 1, 1], mask=[True, False, False])
+        x[...] = value
+        x[[0, 1, 2]] = value
+
+    @pytest.mark.filterwarnings(WARNING_MARK_SPEC)
+    def test_copy(self):
+        # Tests of some subtle points of copying and sizing.
+        n = [0, 0, 1, 0, 0]
+        m = make_mask(n)
+        m2 = make_mask(m)
+        assert_(m is m2)
+        m3 = make_mask(m, copy=True)
+        assert_(m is not m3)
+
+        x1 = np.arange(5)
+        y1 = array(x1, mask=m)
+        assert_equal(y1._data.__array_interface__, x1.__array_interface__)
+        assert_(allequal(x1, y1.data))
+        assert_equal(y1._mask.__array_interface__, m.__array_interface__)
+
+        y1a = array(y1)
+        # Default for masked array is not to copy; see gh-10318.
+        assert_(y1a._data.__array_interface__ ==
+                y1._data.__array_interface__)
+        assert_(y1a._mask.__array_interface__ ==
+                y1._mask.__array_interface__)
+
+        y2 = array(x1, mask=m3)
+        assert_(y2._data.__array_interface__ == x1.__array_interface__)
+        assert_(y2._mask.__array_interface__ == m3.__array_interface__)
+        assert_(y2[2] is masked)
+        y2[2] = 9
+        assert_(y2[2] is not masked)
+        assert_(y2._mask.__array_interface__ == m3.__array_interface__)
+        assert_(allequal(y2.mask, 0))
+
+        y2a = array(x1, mask=m, copy=1)
+        assert_(y2a._data.__array_interface__ != x1.__array_interface__)
+        #assert_( y2a._mask is not m)
+        assert_(y2a._mask.__array_interface__ != m.__array_interface__)
+        assert_(y2a[2] is masked)
+        y2a[2] = 9
+        assert_(y2a[2] is not masked)
+        #assert_( y2a._mask is not m)
+        assert_(y2a._mask.__array_interface__ != m.__array_interface__)
+        assert_(allequal(y2a.mask, 0))
+
+        y3 = array(x1 * 1.0, mask=m)
+        assert_(filled(y3).dtype is (x1 * 1.0).dtype)
+
+        x4 = arange(4)
+        x4[2] = masked
+        y4 = resize(x4, (8,))
+        assert_equal(concatenate([x4, x4]), y4)
+        assert_equal(getmask(y4), [0, 0, 1, 0, 0, 0, 1, 0])
+        y5 = repeat(x4, (2, 2, 2, 2), axis=0)
+        assert_equal(y5, [0, 0, 1, 1, 2, 2, 3, 3])
+        y6 = repeat(x4, 2, axis=0)
+        assert_equal(y5, y6)
+        y7 = x4.repeat((2, 2, 2, 2), axis=0)
+        assert_equal(y5, y7)
+        y8 = x4.repeat(2, 0)
+        assert_equal(y5, y8)
+
+        y9 = x4.copy()
+        assert_equal(y9._data, x4._data)
+        assert_equal(y9._mask, x4._mask)
+
+        x = masked_array([1, 2, 3], mask=[0, 1, 0])
+        # Copy is False by default
+        y = masked_array(x)
+        assert_equal(y._data.ctypes.data, x._data.ctypes.data)
+        assert_equal(y._mask.ctypes.data, x._mask.ctypes.data)
+        y = masked_array(x, copy=True)
+        assert_not_equal(y._data.ctypes.data, x._data.ctypes.data)
+        assert_not_equal(y._mask.ctypes.data, x._mask.ctypes.data)
+
+    def test_copy_0d(self):
+        # gh-9430
+        x = np.ma.array(43, mask=True)
+        xc = x.copy()
+        assert_equal(xc.mask, True)
+
+    def test_copy_on_python_builtins(self):
+        # Tests copy works on python builtins (issue#8019)
+        assert_(isMaskedArray(np.ma.copy([1, 2, 3])))
+        assert_(isMaskedArray(np.ma.copy((1, 2, 3))))
+
+    def test_copy_immutable(self):
+        # Tests that the copy method is immutable, GitHub issue #5247
+        a = np.ma.array([1, 2, 3])
+        b = np.ma.array([4, 5, 6])
+        a_copy_method = a.copy
+        b.copy
+        assert_equal(a_copy_method(), [1, 2, 3])
+
+    def test_deepcopy(self):
+        from copy import deepcopy
+        a = array([0, 1, 2], mask=[False, True, False])
+        copied = deepcopy(a)
+        assert_equal(copied.mask, a.mask)
+        assert_not_equal(id(a._mask), id(copied._mask))
+
+        copied[1] = 1
+        assert_equal(copied.mask, [0, 0, 0])
+        assert_equal(a.mask, [0, 1, 0])
+
+        copied = deepcopy(a)
+        assert_equal(copied.mask, a.mask)
+        copied.mask[1] = False
+        assert_equal(copied.mask, [0, 0, 0])
+        assert_equal(a.mask, [0, 1, 0])
+
+    def test_format(self):
+        a = array([0, 1, 2], mask=[False, True, False])
+        assert_equal(format(a), "[0 -- 2]")
+        assert_equal(format(masked), "--")
+        assert_equal(format(masked, ""), "--")
+
+        # Postponed from PR #15410, perhaps address in the future.
+        # assert_equal(format(masked, " >5"), "   --")
+        # assert_equal(format(masked, " <5"), "--   ")
+
+        # Expect a FutureWarning for using format_spec with MaskedElement
+        with pytest.warns(FutureWarning):
+            with_format_string = format(masked, " >5")
+        assert_equal(with_format_string, "--")
+
+    def test_str_repr(self):
+        a = array([0, 1, 2], mask=[False, True, False])
+        assert_equal(str(a), '[0 -- 2]')
+        assert_equal(
+            repr(a),
+            textwrap.dedent('''\
+            masked_array(data=[0, --, 2],
+                         mask=[False,  True, False],
+                   fill_value=999999)''')
+        )
+
+        # arrays with a continuation
+        a = np.ma.arange(2000)
+        a[1:50] = np.ma.masked
+        assert_equal(
+            repr(a),
+            textwrap.dedent('''\
+            masked_array(data=[0, --, --, ..., 1997, 1998, 1999],
+                         mask=[False,  True,  True, ..., False, False, False],
+                   fill_value=999999)''')
+        )
+
+        # line-wrapped 1d arrays are correctly aligned
+        a = np.ma.arange(20)
+        assert_equal(
+            repr(a),
+            textwrap.dedent('''\
+            masked_array(data=[ 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13,
+                               14, 15, 16, 17, 18, 19],
+                         mask=False,
+                   fill_value=999999)''')
+        )
+
+        # 2d arrays cause wrapping
+        a = array([[1, 2, 3], [4, 5, 6]], dtype=np.int8)
+        a[1, 1] = np.ma.masked
+        assert_equal(
+            repr(a),
+            textwrap.dedent(f'''\
+            masked_array(
+              data=[[1, 2, 3],
+                    [4, --, 6]],
+              mask=[[False, False, False],
+                    [False,  True, False]],
+              fill_value={np.array(999999)[()]!r},
+              dtype=int8)''')
+        )
+
+        # but not it they're a row vector
+        assert_equal(
+            repr(a[:1]),
+            textwrap.dedent(f'''\
+            masked_array(data=[[1, 2, 3]],
+                         mask=[[False, False, False]],
+                   fill_value={np.array(999999)[()]!r},
+                        dtype=int8)''')
+        )
+
+        # dtype=int is implied, so not shown
+        assert_equal(
+            repr(a.astype(int)),
+            textwrap.dedent('''\
+            masked_array(
+              data=[[1, 2, 3],
+                    [4, --, 6]],
+              mask=[[False, False, False],
+                    [False,  True, False]],
+              fill_value=999999)''')
+        )
+
+    def test_str_repr_legacy(self):
+        oldopts = np.get_printoptions()
+        np.set_printoptions(legacy='1.13')
+        try:
+            a = array([0, 1, 2], mask=[False, True, False])
+            assert_equal(str(a), '[0 -- 2]')
+            assert_equal(repr(a), 'masked_array(data = [0 -- 2],\n'
+                                  '             mask = [False  True False],\n'
+                                  '       fill_value = 999999)\n')
+
+            a = np.ma.arange(2000)
+            a[1:50] = np.ma.masked
+            assert_equal(
+                repr(a),
+                'masked_array(data = [0 -- -- ..., 1997 1998 1999],\n'
+                '             mask = [False  True  True ..., False False False],\n'
+                '       fill_value = 999999)\n'
+            )
+        finally:
+            np.set_printoptions(**oldopts)
+
+    def test_0d_unicode(self):
+        u = 'caf\xe9'
+        utype = type(u)
+
+        arr_nomask = np.ma.array(u)
+        arr_masked = np.ma.array(u, mask=True)
+
+        assert_equal(utype(arr_nomask), u)
+        assert_equal(utype(arr_masked), '--')
+
+    def test_pickling(self):
+        # Tests pickling
+        for dtype in (int, float, str, object):
+            a = arange(10).astype(dtype)
+            a.fill_value = 999
+
+            masks = ([0, 0, 0, 1, 0, 1, 0, 1, 0, 1],  # partially masked
+                     True,                            # Fully masked
+                     False)                           # Fully unmasked
+
+            for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+                for mask in masks:
+                    a.mask = mask
+                    a_pickled = pickle.loads(pickle.dumps(a, protocol=proto))
+                    assert_equal(a_pickled._mask, a._mask)
+                    assert_equal(a_pickled._data, a._data)
+                    if dtype in (object, int):
+                        assert_equal(a_pickled.fill_value, 999)
+                    else:
+                        assert_equal(a_pickled.fill_value, dtype(999))
+                    assert_array_equal(a_pickled.mask, mask)
+
+    def test_pickling_subbaseclass(self):
+        # Test pickling w/ a subclass of ndarray
+        x = np.array([(1.0, 2), (3.0, 4)],
+                     dtype=[('x', float), ('y', int)]).view(np.recarray)
+        a = masked_array(x, mask=[(True, False), (False, True)])
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            a_pickled = pickle.loads(pickle.dumps(a, protocol=proto))
+            assert_equal(a_pickled._mask, a._mask)
+            assert_equal(a_pickled, a)
+            assert_(isinstance(a_pickled._data, np.recarray))
+
+    def test_pickling_maskedconstant(self):
+        # Test pickling MaskedConstant
+        mc = np.ma.masked
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            mc_pickled = pickle.loads(pickle.dumps(mc, protocol=proto))
+            assert_equal(mc_pickled._baseclass, mc._baseclass)
+            assert_equal(mc_pickled._mask, mc._mask)
+            assert_equal(mc_pickled._data, mc._data)
+
+    def test_pickling_wstructured(self):
+        # Tests pickling w/ structured array
+        a = array([(1, 1.), (2, 2.)], mask=[(0, 0), (0, 1)],
+                  dtype=[('a', int), ('b', float)])
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            a_pickled = pickle.loads(pickle.dumps(a, protocol=proto))
+            assert_equal(a_pickled._mask, a._mask)
+            assert_equal(a_pickled, a)
+
+    def test_pickling_keepalignment(self):
+        # Tests pickling w/ F_CONTIGUOUS arrays
+        a = arange(10).reshape( (-1, 2))
+        b = a.T
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            test = pickle.loads(pickle.dumps(b, protocol=proto))
+            assert_equal(test, b)
+
+    def test_single_element_subscript(self):
+        # Tests single element subscripts of Maskedarrays.
+        a = array([1, 3, 2])
+        b = array([1, 3, 2], mask=[1, 0, 1])
+        assert_equal(a[0].shape, ())
+        assert_equal(b[0].shape, ())
+        assert_equal(b[1].shape, ())
+
+    def test_topython(self):
+        # Tests some communication issues with Python.
+        assert_equal(1, int(array(1)))
+        assert_equal(1.0, float(array(1)))
+        assert_equal(1, int(array([[[1]]])))
+        assert_equal(1.0, float(array([[1]])))
+        assert_raises(TypeError, float, array([1, 1]))
+
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore', 'Warning: converting a masked element', UserWarning)
+            assert_(np.isnan(float(array([1], mask=[1]))))
+
+            a = array([1, 2, 3], mask=[1, 0, 0])
+            assert_raises(TypeError, lambda: float(a))
+            assert_equal(float(a[-1]), 3.)
+            assert_(np.isnan(float(a[0])))
+        assert_raises(TypeError, int, a)
+        assert_equal(int(a[-1]), 3)
+        assert_raises(MAError, lambda: int(a[0]))
+
+    def test_oddfeatures_1(self):
+        # Test of other odd features
+        x = arange(20)
+        x = x.reshape(4, 5)
+        x.flat[5] = 12
+        assert_(x[1, 0] == 12)
+        z = x + 10j * x
+        assert_equal(z.real, x)
+        assert_equal(z.imag, 10 * x)
+        assert_equal((z * conjugate(z)).real, 101 * x * x)
+        z.imag[...] = 0.0
+
+        x = arange(10)
+        x[3] = masked
+        assert_(str(x[3]) == str(masked))
+        c = x >= 8
+        assert_(count(where(c, masked, masked)) == 0)
+        assert_(shape(where(c, masked, masked)) == c.shape)
+
+        z = masked_where(c, x)
+        assert_(z.dtype is x.dtype)
+        assert_(z[3] is masked)
+        assert_(z[4] is not masked)
+        assert_(z[7] is not masked)
+        assert_(z[8] is masked)
+        assert_(z[9] is masked)
+        assert_equal(x, z)
+
+    def test_oddfeatures_2(self):
+        # Tests some more features.
+        x = array([1., 2., 3., 4., 5.])
+        c = array([1, 1, 1, 0, 0])
+        x[2] = masked
+        z = where(c, x, -x)
+        assert_equal(z, [1., 2., 0., -4., -5])
+        c[0] = masked
+        z = where(c, x, -x)
+        assert_equal(z, [1., 2., 0., -4., -5])
+        assert_(z[0] is masked)
+        assert_(z[1] is not masked)
+        assert_(z[2] is masked)
+
+    def test_oddfeatures_3(self):
+        msg = "setting an item on a masked array which has a shared mask will not copy"
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                'ignore', msg, numpy.ma.core.MaskedArrayFutureWarning)
+            # Tests some generic features
+            atest = array([10], mask=True)
+            btest = array([20])
+            idx = atest.mask
+            atest[idx] = btest[idx]
+            assert_equal(atest, [20])
+
+    def test_filled_with_object_dtype(self):
+        a = np.ma.masked_all(1, dtype='O')
+        assert_equal(a.filled('x')[0], 'x')
+
+    def test_filled_with_flexible_dtype(self):
+        # Test filled w/ flexible dtype
+        flexi = array([(1, 1, 1)],
+                      dtype=[('i', int), ('s', '|S8'), ('f', float)])
+        flexi[0] = masked
+        assert_equal(flexi.filled(),
+                     np.array([(default_fill_value(0),
+                                default_fill_value('0'),
+                                default_fill_value(0.),)], dtype=flexi.dtype))
+        flexi[0] = masked
+        assert_equal(flexi.filled(1),
+                     np.array([(1, '1', 1.)], dtype=flexi.dtype))
+
+    def test_filled_with_mvoid(self):
+        # Test filled w/ mvoid
+        ndtype = [('a', int), ('b', float)]
+        a = mvoid((1, 2.), mask=[(0, 1)], dtype=ndtype)
+        # Filled using default
+        test = a.filled()
+        assert_equal(tuple(test), (1, default_fill_value(1.)))
+        # Explicit fill_value
+        test = a.filled((-1, -1))
+        assert_equal(tuple(test), (1, -1))
+        # Using predefined filling values
+        a.fill_value = (-999, -999)
+        assert_equal(tuple(a.filled()), (1, -999))
+
+    def test_filled_with_nested_dtype(self):
+        # Test filled w/ nested dtype
+        ndtype = [('A', int), ('B', [('BA', int), ('BB', int)])]
+        a = array([(1, (1, 1)), (2, (2, 2))],
+                  mask=[(0, (1, 0)), (0, (0, 1))], dtype=ndtype)
+        test = a.filled(0)
+        control = np.array([(1, (0, 1)), (2, (2, 0))], dtype=ndtype)
+        assert_equal(test, control)
+
+        test = a['B'].filled(0)
+        control = np.array([(0, 1), (2, 0)], dtype=a['B'].dtype)
+        assert_equal(test, control)
+
+        # test if mask gets set correctly (see #6760)
+        Z = numpy.ma.zeros(2, numpy.dtype([("A", "(2,2)i1,(2,2)i1", (2, 2))]))
+        assert_equal(Z.data.dtype, numpy.dtype([('A', [('f0', 'i1', (2, 2)),
+                                          ('f1', 'i1', (2, 2))], (2, 2))]))
+        assert_equal(Z.mask.dtype, numpy.dtype([('A', [('f0', '?', (2, 2)),
+                                          ('f1', '?', (2, 2))], (2, 2))]))
+
+    def test_filled_with_f_order(self):
+        # Test filled w/ F-contiguous array
+        a = array(np.array([(0, 1, 2), (4, 5, 6)], order='F'),
+                  mask=np.array([(0, 0, 1), (1, 0, 0)], order='F'),
+                  order='F')  # this is currently ignored
+        assert_(a.flags['F_CONTIGUOUS'])
+        assert_(a.filled(0).flags['F_CONTIGUOUS'])
+
+    def test_optinfo_propagation(self):
+        # Checks that _optinfo dictionary isn't back-propagated
+        x = array([1, 2, 3, ], dtype=float)
+        x._optinfo['info'] = '???'
+        y = x.copy()
+        assert_equal(y._optinfo['info'], '???')
+        y._optinfo['info'] = '!!!'
+        assert_equal(x._optinfo['info'], '???')
+
+    def test_optinfo_forward_propagation(self):
+        a = array([1, 2, 2, 4])
+        a._optinfo["key"] = "value"
+        assert_equal(a._optinfo["key"], (a == 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a != 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a > 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a >= 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a <= 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a + 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a - 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a * 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], (a / 2)._optinfo["key"])
+        assert_equal(a._optinfo["key"], a[:2]._optinfo["key"])
+        assert_equal(a._optinfo["key"], a[[0, 0, 2]]._optinfo["key"])
+        assert_equal(a._optinfo["key"], np.exp(a)._optinfo["key"])
+        assert_equal(a._optinfo["key"], np.abs(a)._optinfo["key"])
+        assert_equal(a._optinfo["key"], array(a, copy=True)._optinfo["key"])
+        assert_equal(a._optinfo["key"], np.zeros_like(a)._optinfo["key"])
+
+    def test_fancy_printoptions(self):
+        # Test printing a masked array w/ fancy dtype.
+        fancydtype = np.dtype([('x', int), ('y', [('t', int), ('s', float)])])
+        test = array([(1, (2, 3.0)), (4, (5, 6.0))],
+                     mask=[(1, (0, 1)), (0, (1, 0))],
+                     dtype=fancydtype)
+        control = "[(--, (2, --)) (4, (--, 6.0))]"
+        assert_equal(str(test), control)
+
+        # Test 0-d array with multi-dimensional dtype
+        t_2d0 = masked_array(data=(0, [[0.0, 0.0, 0.0],
+                                       [0.0, 0.0, 0.0]],
+                                   0.0),
+                             mask=(False, [[True, False, True],
+                                           [False, False, True]],
+                                   False),
+                             dtype="int, (2,3)float, float")
+        control = "(0, [[--, 0.0, --], [0.0, 0.0, --]], 0.0)"
+        assert_equal(str(t_2d0), control)
+
+    def test_flatten_structured_array(self):
+        # Test flatten_structured_array on arrays
+        # On ndarray
+        ndtype = [('a', int), ('b', float)]
+        a = np.array([(1, 1), (2, 2)], dtype=ndtype)
+        test = flatten_structured_array(a)
+        control = np.array([[1., 1.], [2., 2.]], dtype=float)
+        assert_equal(test, control)
+        assert_equal(test.dtype, control.dtype)
+        # On masked_array
+        a = array([(1, 1), (2, 2)], mask=[(0, 1), (1, 0)], dtype=ndtype)
+        test = flatten_structured_array(a)
+        control = array([[1., 1.], [2., 2.]],
+                        mask=[[0, 1], [1, 0]], dtype=float)
+        assert_equal(test, control)
+        assert_equal(test.dtype, control.dtype)
+        assert_equal(test.mask, control.mask)
+        # On masked array with nested structure
+        ndtype = [('a', int), ('b', [('ba', int), ('bb', float)])]
+        a = array([(1, (1, 1.1)), (2, (2, 2.2))],
+                  mask=[(0, (1, 0)), (1, (0, 1))], dtype=ndtype)
+        test = flatten_structured_array(a)
+        control = array([[1., 1., 1.1], [2., 2., 2.2]],
+                        mask=[[0, 1, 0], [1, 0, 1]], dtype=float)
+        assert_equal(test, control)
+        assert_equal(test.dtype, control.dtype)
+        assert_equal(test.mask, control.mask)
+        # Keeping the initial shape
+        ndtype = [('a', int), ('b', float)]
+        a = np.array([[(1, 1), ], [(2, 2), ]], dtype=ndtype)
+        test = flatten_structured_array(a)
+        control = np.array([[[1., 1.], ], [[2., 2.], ]], dtype=float)
+        assert_equal(test, control)
+        assert_equal(test.dtype, control.dtype)
+        # for strings
+        ndtype = [('a', 'U5'), ('b', [('c', 'U5')])]
+        arr = np.array([('NumPy', ('array',)), ('array', ('numpy',))], dtype=ndtype)
+        test = flatten_structured_array(arr)
+        control = np.array([['NumPy', 'array'], ['array', 'numpy']], dtype='U5')
+        assert_equal(test, control)
+        assert_equal(test.dtype, control.dtype)
+
+    def test_void0d(self):
+        # Test creating a mvoid object
+        ndtype = [('a', int), ('b', int)]
+        a = np.array([(1, 2,)], dtype=ndtype)[0]
+        f = mvoid(a)
+        assert_(isinstance(f, mvoid))
+
+        a = masked_array([(1, 2)], mask=[(1, 0)], dtype=ndtype)[0]
+        assert_(isinstance(a, mvoid))
+
+        a = masked_array([(1, 2), (1, 2)], mask=[(1, 0), (0, 0)], dtype=ndtype)
+        f = mvoid(a._data[0], a._mask[0])
+        assert_(isinstance(f, mvoid))
+
+    def test_mvoid_getitem(self):
+        # Test mvoid.__getitem__
+        ndtype = [('a', int), ('b', int)]
+        a = masked_array([(1, 2,), (3, 4)], mask=[(0, 0), (1, 0)],
+                         dtype=ndtype)
+        # w/o mask
+        f = a[0]
+        assert_(isinstance(f, mvoid))
+        assert_equal((f[0], f['a']), (1, 1))
+        assert_equal(f['b'], 2)
+        # w/ mask
+        f = a[1]
+        assert_(isinstance(f, mvoid))
+        assert_(f[0] is masked)
+        assert_(f['a'] is masked)
+        assert_equal(f[1], 4)
+
+        # exotic dtype
+        A = masked_array(data=[([0, 1],)],
+                         mask=[([True, False],)],
+                         dtype=[("A", ">i2", (2,))])
+        assert_equal(A[0]["A"], A["A"][0])
+        assert_equal(A[0]["A"], masked_array(data=[0, 1],
+                         mask=[True, False], dtype=">i2"))
+
+    def test_mvoid_iter(self):
+        # Test iteration on __getitem__
+        ndtype = [('a', int), ('b', int)]
+        a = masked_array([(1, 2,), (3, 4)], mask=[(0, 0), (1, 0)],
+                         dtype=ndtype)
+        # w/o mask
+        assert_equal(list(a[0]), [1, 2])
+        # w/ mask
+        assert_equal(list(a[1]), [masked, 4])
+
+    @pytest.mark.thread_unsafe(reason="masked_print_option.set_display global state")
+    def test_mvoid_print(self):
+        # Test printing a mvoid
+        mx = array([(1, 1), (2, 2)], dtype=[('a', int), ('b', int)])
+        assert_equal(str(mx[0]), "(1, 1)")
+        mx['b'][0] = masked
+        ini_display = masked_print_option._display
+        masked_print_option.set_display("-X-")
+        try:
+            assert_equal(str(mx[0]), "(1, -X-)")
+            assert_equal(repr(mx[0]), "(1, -X-)")
+        finally:
+            masked_print_option.set_display(ini_display)
+
+        # also check if there are object datatypes (see gh-7493)
+        mx = array([(1,), (2,)], dtype=[('a', 'O')])
+        assert_equal(str(mx[0]), "(1,)")
+
+    @pytest.mark.thread_unsafe(reason="masked_print_option global state")
+    def test_mvoid_multidim_print(self):
+
+        # regression test for gh-6019
+        t_ma = masked_array(data=[([1, 2, 3],)],
+                            mask=[([False, True, False],)],
+                            fill_value=([999999, 999999, 999999],),
+                            dtype=[('a', '<i4', (3,))])
+        assert_(str(t_ma[0]) == "([1, --, 3],)")
+        assert_(repr(t_ma[0]) == "([1, --, 3],)")
+
+        # additional tests with structured arrays
+
+        t_2d = masked_array(data=[([[1, 2], [3, 4]],)],
+                            mask=[([[False, True], [True, False]],)],
+                            dtype=[('a', '<i4', (2, 2))])
+        assert_(str(t_2d[0]) == "([[1, --], [--, 4]],)")
+        assert_(repr(t_2d[0]) == "([[1, --], [--, 4]],)")
+
+        t_0d = masked_array(data=[(1, 2)],
+                            mask=[(True, False)],
+                            dtype=[('a', '<i4'), ('b', '<i4')])
+        assert_(str(t_0d[0]) == "(--, 2)")
+        assert_(repr(t_0d[0]) == "(--, 2)")
+
+        t_2d = masked_array(data=[([[1, 2], [3, 4]], 1)],
+                            mask=[([[False, True], [True, False]], False)],
+                            dtype=[('a', '<i4', (2, 2)), ('b', float)])
+        assert_(str(t_2d[0]) == "([[1, --], [--, 4]], 1.0)")
+        assert_(repr(t_2d[0]) == "([[1, --], [--, 4]], 1.0)")
+
+        t_ne = masked_array(data=[(1, (1, 1))],
+                            mask=[(True, (True, False))],
+                            dtype=[('a', '<i4'), ('b', 'i4,i4')])
+        assert_(str(t_ne[0]) == "(--, (--, 1))")
+        assert_(repr(t_ne[0]) == "(--, (--, 1))")
+
+    def test_object_with_array(self):
+        mx1 = masked_array([1.], mask=[True])
+        mx2 = masked_array([1., 2.])
+        mx = masked_array([mx1, mx2], mask=[False, True], dtype=object)
+        assert_(mx[0] is mx1)
+        assert_(mx[1] is not mx2)
+        assert_(np.all(mx[1].data == mx2.data))
+        assert_(np.all(mx[1].mask))
+        # check that we return a view.
+        mx[1].data[0] = 0.
+        assert_(mx2[0] == 0.)
+
+    def test_maskedarray_tofile_raises_notimplementederror(self):
+        xm = masked_array([1, 2, 3], mask=[False, True, False])
+        # Test case to check the NotImplementedError.
+        # It is not implemented at this point of time. We can change this in future
+        with temppath(suffix='.npy') as path:
+            with pytest.raises(NotImplementedError):
+                np.save(path, xm)
+
+
+class TestMaskedArrayArithmetic:
+    # Base test class for MaskedArrays.
+    def _create_data(self):
+        # Base data definition.
+        x = np.array([1., 1., 1., -2., pi / 2.0, 4., 5., -10., 10., 1., 2., 3.])
+        y = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.])
+        a10 = 10.
+        m1 = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
+        m2 = [0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1]
+        xm = masked_array(x, mask=m1)
+        ym = masked_array(y, mask=m2)
+        z = np.array([-.5, 0., .5, .8])
+        zm = masked_array(z, mask=[0, 1, 0, 0])
+        xf = np.where(m1, 1e+20, x)
+        xm.set_fill_value(1e+20)
+        return x, y, a10, m1, m2, xm, ym, z, zm, xf
+
+    @pytest.fixture(autouse=True, scope="class")
+    def err_status(self):
+        err = np.geterr()
+        np.seterr(divide='ignore', invalid='ignore')
+        yield err
+        np.seterr(**err)
+
+    def test_basic_arithmetic(self):
+        # Test of basic arithmetic.
+        x, y, a10, _, _, xm, ym, _, _, xf = self._create_data()
+        a2d = array([[1, 2], [0, 4]])
+        a2dm = masked_array(a2d, [[0, 0], [1, 0]])
+        assert_equal(a2d * a2d, a2d * a2dm)
+        assert_equal(a2d + a2d, a2d + a2dm)
+        assert_equal(a2d - a2d, a2d - a2dm)
+        for s in [(12,), (4, 3), (2, 6)]:
+            x = x.reshape(s)
+            y = y.reshape(s)
+            xm = xm.reshape(s)
+            ym = ym.reshape(s)
+            xf = xf.reshape(s)
+            assert_equal(-x, -xm)
+            assert_equal(x + y, xm + ym)
+            assert_equal(x - y, xm - ym)
+            assert_equal(x * y, xm * ym)
+            assert_equal(x / y, xm / ym)
+            assert_equal(a10 + y, a10 + ym)
+            assert_equal(a10 - y, a10 - ym)
+            assert_equal(a10 * y, a10 * ym)
+            assert_equal(a10 / y, a10 / ym)
+            assert_equal(x + a10, xm + a10)
+            assert_equal(x - a10, xm - a10)
+            assert_equal(x * a10, xm * a10)
+            assert_equal(x / a10, xm / a10)
+            assert_equal(x ** 2, xm ** 2)
+            assert_equal(abs(x) ** 2.5, abs(xm) ** 2.5)
+            assert_equal(x ** y, xm ** ym)
+            assert_equal(np.add(x, y), add(xm, ym))
+            assert_equal(np.subtract(x, y), subtract(xm, ym))
+            assert_equal(np.multiply(x, y), multiply(xm, ym))
+            assert_equal(np.divide(x, y), divide(xm, ym))
+
+    def test_divide_on_different_shapes(self):
+        x = arange(6, dtype=float).reshape((2, 3))
+        y = arange(3, dtype=float)
+
+        z = x / y
+        assert_equal(z, [[-1., 1., 1.], [-1., 4., 2.5]])
+        assert_equal(z.mask, [[1, 0, 0], [1, 0, 0]])
+
+        z = x / y[None, :]
+        assert_equal(z, [[-1., 1., 1.], [-1., 4., 2.5]])
+        assert_equal(z.mask, [[1, 0, 0], [1, 0, 0]])
+
+        y = arange(2, dtype=float)
+        z = x / y[:, None]
+        assert_equal(z, [[-1., -1., -1.], [3., 4., 5.]])
+        assert_equal(z.mask, [[1, 1, 1], [0, 0, 0]])
+
+    def test_mixed_arithmetic(self):
+        # Tests mixed arithmetic.
+        na = np.array([1])
+        ma = array([1])
+        assert_(isinstance(na + ma, MaskedArray))
+        assert_(isinstance(ma + na, MaskedArray))
+
+    def test_limits_arithmetic(self):
+        tiny = np.finfo(float).tiny
+        a = array([tiny, 1. / tiny, 0.])
+        assert_equal(getmaskarray(a / 2), [0, 0, 0])
+        assert_equal(getmaskarray(2 / a), [1, 0, 1])
+
+    def test_masked_singleton_arithmetic(self):
+        # Tests some scalar arithmetic on MaskedArrays.
+        # Masked singleton should remain masked no matter what
+        xm = array(0, mask=1)
+        assert_((1 / array(0)).mask)
+        assert_((1 + xm).mask)
+        assert_((-xm).mask)
+        assert_(maximum(xm, xm).mask)
+        assert_(minimum(xm, xm).mask)
+
+    def test_masked_singleton_equality(self):
+        # Tests (in)equality on masked singleton
+        a = array([1, 2, 3], mask=[1, 1, 0])
+        assert_((a[0] == 0) is masked)
+        assert_((a[0] != 0) is masked)
+        assert_equal((a[-1] == 0), False)
+        assert_equal((a[-1] != 0), True)
+
+    def test_arithmetic_with_masked_singleton(self):
+        # Checks that there's no collapsing to masked
+        x = masked_array([1, 2])
+        y = x * masked
+        assert_equal(y.shape, x.shape)
+        assert_equal(y._mask, [True, True])
+        y = x[0] * masked
+        assert_(y is masked)
+        y = x + masked
+        assert_equal(y.shape, x.shape)
+        assert_equal(y._mask, [True, True])
+
+    def test_arithmetic_with_masked_singleton_on_1d_singleton(self):
+        # Check that we're not losing the shape of a singleton
+        x = masked_array([1, ])
+        y = x + masked
+        assert_equal(y.shape, x.shape)
+        assert_equal(y.mask, [True, ])
+
+    def test_scalar_arithmetic(self):
+        x = array(0, mask=0)
+        assert_equal(x.filled().ctypes.data, x.ctypes.data)
+        # Make sure we don't lose the shape in some circumstances
+        xm = array((0, 0)) / 0.
+        assert_equal(xm.shape, (2,))
+        assert_equal(xm.mask, [1, 1])
+
+    def test_basic_ufuncs(self):
+        # Test various functions such as sin, cos.
+        x, y, _, _, _, xm, ym, z, zm, _ = self._create_data()
+        assert_equal(np.cos(x), cos(xm))
+        assert_equal(np.cosh(x), cosh(xm))
+        assert_equal(np.sin(x), sin(xm))
+        assert_equal(np.sinh(x), sinh(xm))
+        assert_equal(np.tan(x), tan(xm))
+        assert_equal(np.tanh(x), tanh(xm))
+        assert_equal(np.sqrt(abs(x)), sqrt(xm))
+        assert_equal(np.log(abs(x)), log(xm))
+        assert_equal(np.log10(abs(x)), log10(xm))
+        assert_equal(np.exp(x), exp(xm))
+        assert_equal(np.arcsin(z), arcsin(zm))
+        assert_equal(np.arccos(z), arccos(zm))
+        assert_equal(np.arctan(z), arctan(zm))
+        assert_equal(np.arctan2(x, y), arctan2(xm, ym))
+        assert_equal(np.absolute(x), absolute(xm))
+        assert_equal(np.angle(x + 1j * y), angle(xm + 1j * ym))
+        assert_equal(np.angle(x + 1j * y, deg=True), angle(xm + 1j * ym, deg=True))
+        assert_equal(np.equal(x, y), equal(xm, ym))
+        assert_equal(np.not_equal(x, y), not_equal(xm, ym))
+        assert_equal(np.less(x, y), less(xm, ym))
+        assert_equal(np.greater(x, y), greater(xm, ym))
+        assert_equal(np.less_equal(x, y), less_equal(xm, ym))
+        assert_equal(np.greater_equal(x, y), greater_equal(xm, ym))
+        assert_equal(np.conjugate(x), conjugate(xm))
+
+    def test_basic_ufuncs_masked(self):
+        # Mostly regression test for gh-25635
+        assert np.sqrt(np.ma.masked) is np.ma.masked
+
+    def test_count_func(self):
+        # Tests count
+        assert_equal(1, count(1))
+        assert_equal(0, array(1, mask=[1]))
+
+        ott = array([0., 1., 2., 3.], mask=[1, 0, 0, 0])
+        res = count(ott)
+        assert_(res.dtype.type is np.intp)
+        assert_equal(3, res)
+
+        ott = ott.reshape((2, 2))
+        res = count(ott)
+        assert_(res.dtype.type is np.intp)
+        assert_equal(3, res)
+        res = count(ott, 0)
+        assert_(isinstance(res, ndarray))
+        assert_equal([1, 2], res)
+        assert_(getmask(res) is nomask)
+
+        ott = array([0., 1., 2., 3.])
+        res = count(ott, 0)
+        assert_(isinstance(res, ndarray))
+        assert_(res.dtype.type is np.intp)
+        assert_raises(AxisError, ott.count, axis=1)
+
+    def test_count_on_python_builtins(self):
+        # Tests count works on python builtins (issue#8019)
+        assert_equal(3, count([1, 2, 3]))
+        assert_equal(2, count((1, 2)))
+
+    def test_minmax_func(self):
+        # Tests minimum and maximum.
+        x, y, _, _, _, xm, _, _, _, _ = self._create_data()
+        # max doesn't work if shaped
+        xr = np.ravel(x)
+        xmr = ravel(xm)
+        # following are true because of careful selection of data
+        assert_equal(max(xr), maximum.reduce(xmr))
+        assert_equal(min(xr), minimum.reduce(xmr))
+
+        assert_equal(minimum([1, 2, 3], [4, 0, 9]), [1, 0, 3])
+        assert_equal(maximum([1, 2, 3], [4, 0, 9]), [4, 2, 9])
+        x = arange(5)
+        y = arange(5) - 2
+        x[3] = masked
+        y[0] = masked
+        assert_equal(minimum(x, y), where(less(x, y), x, y))
+        assert_equal(maximum(x, y), where(greater(x, y), x, y))
+        assert_(minimum.reduce(x) == 0)
+        assert_(maximum.reduce(x) == 4)
+
+        x = arange(4).reshape(2, 2)
+        x[-1, -1] = masked
+        assert_equal(maximum.reduce(x, axis=None), 2)
+
+    def test_minimummaximum_func(self):
+        a = np.ones((2, 2))
+        aminimum = minimum(a, a)
+        assert_(isinstance(aminimum, MaskedArray))
+        assert_equal(aminimum, np.minimum(a, a))
+
+        aminimum = minimum.outer(a, a)
+        assert_(isinstance(aminimum, MaskedArray))
+        assert_equal(aminimum, np.minimum.outer(a, a))
+
+        amaximum = maximum(a, a)
+        assert_(isinstance(amaximum, MaskedArray))
+        assert_equal(amaximum, np.maximum(a, a))
+
+        amaximum = maximum.outer(a, a)
+        assert_(isinstance(amaximum, MaskedArray))
+        assert_equal(amaximum, np.maximum.outer(a, a))
+
+    def test_minmax_reduce(self):
+        # Test np.min/maximum.reduce on array w/ full False mask
+        a = array([1, 2, 3], mask=[False, False, False])
+        b = np.maximum.reduce(a)
+        assert_equal(b, 3)
+
+    def test_minmax_funcs_with_output(self):
+        # Tests the min/max functions with explicit outputs
+        mask = np.random.rand(12).round()
+        xm = array(np.random.uniform(0, 10, 12), mask=mask)
+        xm.shape = (3, 4)
+        for funcname in ('min', 'max'):
+            # Initialize
+            npfunc = getattr(np, funcname)
+            mafunc = getattr(numpy.ma.core, funcname)
+            # Use the np version
+            nout = np.empty((4,), dtype=int)
+            try:
+                result = npfunc(xm, axis=0, out=nout)
+            except MaskError:
+                pass
+            nout = np.empty((4,), dtype=float)
+            result = npfunc(xm, axis=0, out=nout)
+            assert_(result is nout)
+            # Use the ma version
+            nout.fill(-999)
+            result = mafunc(xm, axis=0, out=nout)
+            assert_(result is nout)
+
+    def test_minmax_methods(self):
+        # Additional tests on max/min
+        xm = self._create_data()[5]
+        xm.shape = (xm.size,)
+        assert_equal(xm.max(), 10)
+        assert_(xm[0].max() is masked)
+        assert_(xm[0].max(0) is masked)
+        assert_(xm[0].max(-1) is masked)
+        assert_equal(xm.min(), -10.)
+        assert_(xm[0].min() is masked)
+        assert_(xm[0].min(0) is masked)
+        assert_(xm[0].min(-1) is masked)
+        assert_equal(xm.ptp(), 20.)
+        assert_(xm[0].ptp() is masked)
+        assert_(xm[0].ptp(0) is masked)
+        assert_(xm[0].ptp(-1) is masked)
+
+        x = array([1, 2, 3], mask=True)
+        assert_(x.min() is masked)
+        assert_(x.max() is masked)
+        assert_(x.ptp() is masked)
+
+    def test_minmax_dtypes(self):
+        # Additional tests on max/min for non-standard float and complex dtypes
+        x = np.array([1., 1., 1., -2., pi / 2.0, 4., 5., -10., 10., 1., 2., 3.])
+        a10 = 10.
+        an10 = -10.0
+        m1 = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
+        xm = masked_array(x, mask=m1)
+        xm.set_fill_value(1e+20)
+        float_dtypes = [np.float16, np.float32, np.float64, np.longdouble,
+                        np.complex64, np.complex128, np.clongdouble]
+        for float_dtype in float_dtypes:
+            assert_equal(masked_array(x, mask=m1, dtype=float_dtype).max(),
+                         float_dtype(a10))
+            assert_equal(masked_array(x, mask=m1, dtype=float_dtype).min(),
+                         float_dtype(an10))
+
+        assert_equal(xm.min(), an10)
+        assert_equal(xm.max(), a10)
+
+        # Non-complex type only test
+        for float_dtype in float_dtypes[:4]:
+            assert_equal(masked_array(x, mask=m1, dtype=float_dtype).max(),
+                         float_dtype(a10))
+            assert_equal(masked_array(x, mask=m1, dtype=float_dtype).min(),
+                         float_dtype(an10))
+
+        # Complex types only test
+        for float_dtype in float_dtypes[-3:]:
+            ym = masked_array([1e20 + 1j, 1e20 - 2j, 1e20 - 1j], mask=[0, 1, 0],
+                          dtype=float_dtype)
+            assert_equal(ym.min(), float_dtype(1e20 - 1j))
+            assert_equal(ym.max(), float_dtype(1e20 + 1j))
+
+            zm = masked_array([np.inf + 2j, np.inf + 3j, -np.inf - 1j], mask=[0, 1, 0],
+                              dtype=float_dtype)
+            assert_equal(zm.min(), float_dtype(-np.inf - 1j))
+            assert_equal(zm.max(), float_dtype(np.inf + 2j))
+
+            cmax = np.inf - 1j * np.finfo(np.float64).max
+            assert masked_array([-cmax, 0], mask=[0, 1]).max() == -cmax
+            assert masked_array([cmax, 0], mask=[0, 1]).min() == cmax
+
+    @pytest.mark.parametrize("dtype", "bBiIqQ")
+    @pytest.mark.parametrize("mask", [
+        [False, False, False, True, True],  # masked min/max
+        [False, False, False, True, False],  # masked max only
+        [False, False, False, False, True],  # masked min only
+    ])
+    @pytest.mark.parametrize("axis", [None, -1])
+    def test_minmax_ints(self, dtype, mask, axis):
+        iinfo = np.iinfo(dtype)
+        # two dimensional to hit certain filling paths
+        a = np.array([[0, 10, -10, iinfo.min, iinfo.max]] * 2).astype(dtype)
+        mask = np.asarray([mask] * 2)
+
+        masked_a = masked_array(a, mask=mask)
+        assert_array_equal(masked_a.min(axis), a[~mask].min(axis))
+        assert_array_equal(masked_a.max(axis), a[~mask].max(axis))
+
+    @pytest.mark.parametrize("time_type", ["M8[s]", "m8[s]"])
+    def test_minmax_time_dtypes(self, time_type):
+        def minmax_with_mask(arr, mask):
+            masked_arr = masked_array(arr, mask=mask)
+            expected_min = arr[~np.array(mask, dtype=bool)].min()
+            expected_max = arr[~np.array(mask, dtype=bool)].max()
+
+            assert_array_equal(masked_arr.min(), expected_min)
+            assert_array_equal(masked_arr.max(), expected_max)
+
+        # Additional tests on max/min for time dtypes
+        x1 = np.array([1, 1, -2, 4, 5, -10, 10, 1, 2, -2**63 + 1], dtype=time_type)
+        x2 = np.array(['NaT', 1, -2, 4, 5, -10, 10, 1, 2, 3], dtype=time_type)
+        x3 = np.array(['NaT', 'NaT', -2, 4, 5, -10, 10, 1, 2, 3], dtype=time_type)
+        x_test = [x1, x2, x3]
+        m = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0]
+
+        for x in x_test:
+            minmax_with_mask(x, m)
+
+    def test_addsumprod(self):
+        # Tests add, sum, product.
+        x, y, _, _, _, xm, ym, _, _, _ = self._create_data()
+        assert_equal(np.add.reduce(x), add.reduce(x))
+        assert_equal(np.add.accumulate(x), add.accumulate(x))
+        assert_equal(4, sum(array(4), axis=0))
+        assert_equal(4, sum(array(4), axis=0))
+        assert_equal(np.sum(x, axis=0), sum(x, axis=0))
+        assert_equal(np.sum(filled(xm, 0), axis=0), sum(xm, axis=0))
+        assert_equal(np.sum(x, 0), sum(x, 0))
+        assert_equal(np.prod(x, axis=0), product(x, axis=0))
+        assert_equal(np.prod(x, 0), product(x, 0))
+        assert_equal(np.prod(filled(xm, 1), axis=0), product(xm, axis=0))
+        s = (3, 4)
+        x.shape = y.shape = xm.shape = ym.shape = s
+        if len(s) > 1:
+            assert_equal(np.concatenate((x, y), 1), concatenate((xm, ym), 1))
+            assert_equal(np.add.reduce(x, 1), add.reduce(x, 1))
+            assert_equal(np.sum(x, 1), sum(x, 1))
+            assert_equal(np.prod(x, 1), product(x, 1))
+
+    def test_binops_d2D(self):
+        # Test binary operations on 2D data
+        a = array([[1.], [2.], [3.]], mask=[[False], [True], [True]])
+        b = array([[2., 3.], [4., 5.], [6., 7.]])
+
+        test = a * b
+        control = array([[2., 3.], [2., 2.], [3., 3.]],
+                        mask=[[0, 0], [1, 1], [1, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+        test = b * a
+        control = array([[2., 3.], [4., 5.], [6., 7.]],
+                        mask=[[0, 0], [1, 1], [1, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+        a = array([[1.], [2.], [3.]])
+        b = array([[2., 3.], [4., 5.], [6., 7.]],
+                  mask=[[0, 0], [0, 0], [0, 1]])
+        test = a * b
+        control = array([[2, 3], [8, 10], [18, 3]],
+                        mask=[[0, 0], [0, 0], [0, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+        test = b * a
+        control = array([[2, 3], [8, 10], [18, 7]],
+                        mask=[[0, 0], [0, 0], [0, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+    def test_domained_binops_d2D(self):
+        # Test domained binary operations on 2D data
+        a = array([[1.], [2.], [3.]], mask=[[False], [True], [True]])
+        b = array([[2., 3.], [4., 5.], [6., 7.]])
+
+        test = a / b
+        control = array([[1. / 2., 1. / 3.], [2., 2.], [3., 3.]],
+                        mask=[[0, 0], [1, 1], [1, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+        test = b / a
+        control = array([[2. / 1., 3. / 1.], [4., 5.], [6., 7.]],
+                        mask=[[0, 0], [1, 1], [1, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+        a = array([[1.], [2.], [3.]])
+        b = array([[2., 3.], [4., 5.], [6., 7.]],
+                  mask=[[0, 0], [0, 0], [0, 1]])
+        test = a / b
+        control = array([[1. / 2, 1. / 3], [2. / 4, 2. / 5], [3. / 6, 3]],
+                        mask=[[0, 0], [0, 0], [0, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+        test = b / a
+        control = array([[2 / 1., 3 / 1.], [4 / 2., 5 / 2.], [6 / 3., 7]],
+                        mask=[[0, 0], [0, 0], [0, 1]])
+        assert_equal(test, control)
+        assert_equal(test.data, control.data)
+        assert_equal(test.mask, control.mask)
+
+    def test_noshrinking(self):
+        # Check that we don't shrink a mask when not wanted
+        # Binary operations
+        a = masked_array([1., 2., 3.], mask=[False, False, False],
+                         shrink=False)
+        b = a + 1
+        assert_equal(b.mask, [0, 0, 0])
+        # In place binary operation
+        a += 1
+        assert_equal(a.mask, [0, 0, 0])
+        # Domained binary operation
+        b = a / 1.
+        assert_equal(b.mask, [0, 0, 0])
+        # In place binary operation
+        a /= 1.
+        assert_equal(a.mask, [0, 0, 0])
+
+    def test_ufunc_nomask(self):
+        # check the case ufuncs should set the mask to false
+        m = np.ma.array([1])
+        # check we don't get array([False], dtype=bool)
+        assert_equal(np.true_divide(m, 5).mask.shape, ())
+
+    def test_noshink_on_creation(self):
+        # Check that the mask is not shrunk on array creation when not wanted
+        a = np.ma.masked_values([1., 2.5, 3.1], 1.5, shrink=False)
+        assert_equal(a.mask, [0, 0, 0])
+
+    def test_mod(self):
+        # Tests mod
+        x, y, _, _, _, xm, ym, _, _, _ = self._create_data()
+        assert_equal(mod(x, y), mod(xm, ym))
+        test = mod(ym, xm)
+        assert_equal(test, np.mod(ym, xm))
+        assert_equal(test.mask, mask_or(xm.mask, ym.mask))
+        test = mod(xm, ym)
+        assert_equal(test, np.mod(xm, ym))
+        assert_equal(test.mask, mask_or(mask_or(xm.mask, ym.mask), (ym == 0)))
+
+    def test_TakeTransposeInnerOuter(self):
+        # Test of take, transpose, inner, outer products
+        x = arange(24)
+        y = np.arange(24)
+        x[5:6] = masked
+        x = x.reshape(2, 3, 4)
+        y = y.reshape(2, 3, 4)
+        assert_equal(np.transpose(y, (2, 0, 1)), transpose(x, (2, 0, 1)))
+        assert_equal(np.take(y, (2, 0, 1), 1), take(x, (2, 0, 1), 1))
+        assert_equal(np.inner(filled(x, 0), filled(y, 0)),
+                     inner(x, y))
+        assert_equal(np.outer(filled(x, 0), filled(y, 0)),
+                     outer(x, y))
+        y = array(['abc', 1, 'def', 2, 3], object)
+        y[2] = masked
+        t = take(y, [0, 3, 4])
+        assert_(t[0] == 'abc')
+        assert_(t[1] == 2)
+        assert_(t[2] == 3)
+
+    def test_imag_real(self):
+        # Check complex
+        xx = array([1 + 10j, 20 + 2j], mask=[1, 0])
+        assert_equal(xx.imag, [10, 2])
+        assert_equal(xx.imag.filled(), [1e+20, 2])
+        assert_equal(xx.imag.dtype, xx._data.imag.dtype)
+        assert_equal(xx.real, [1, 20])
+        assert_equal(xx.real.filled(), [1e+20, 20])
+        assert_equal(xx.real.dtype, xx._data.real.dtype)
+
+    def test_methods_with_output(self):
+        xm = array(np.random.uniform(0, 10, 12)).reshape(3, 4)
+        xm[:, 0] = xm[0] = xm[-1, -1] = masked
+
+        funclist = ('sum', 'prod', 'var', 'std', 'max', 'min', 'ptp', 'mean',)
+
+        for funcname in funclist:
+            npfunc = getattr(np, funcname)
+            xmmeth = getattr(xm, funcname)
+            # A ndarray as explicit input
+            output = np.empty(4, dtype=float)
+            output.fill(-9999)
+            result = npfunc(xm, axis=0, out=output)
+            # ... the result should be the given output
+            assert_(result is output)
+            assert_equal(result, xmmeth(axis=0, out=output))
+
+            output = empty(4, dtype=int)
+            result = xmmeth(axis=0, out=output)
+            assert_(result is output)
+            assert_(output[0] is masked)
+
+    def test_eq_on_structured(self):
+        # Test the equality of structured arrays
+        ndtype = [('A', int), ('B', int)]
+        a = array([(1, 1), (2, 2)], mask=[(0, 1), (0, 0)], dtype=ndtype)
+
+        test = (a == a)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [False, False])
+        assert_(test.fill_value == True)
+
+        test = (a == a[0])
+        assert_equal(test.data, [True, False])
+        assert_equal(test.mask, [False, False])
+        assert_(test.fill_value == True)
+
+        b = array([(1, 1), (2, 2)], mask=[(1, 0), (0, 0)], dtype=ndtype)
+        test = (a == b)
+        assert_equal(test.data, [False, True])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = (a[0] == b)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        b = array([(1, 1), (2, 2)], mask=[(0, 1), (1, 0)], dtype=ndtype)
+        test = (a == b)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [False, False])
+        assert_(test.fill_value == True)
+
+        # complicated dtype, 2-dimensional array.
+        ndtype = [('A', int), ('B', [('BA', int), ('BB', int)])]
+        a = array([[(1, (1, 1)), (2, (2, 2))],
+                   [(3, (3, 3)), (4, (4, 4))]],
+                  mask=[[(0, (1, 0)), (0, (0, 1))],
+                        [(1, (0, 0)), (1, (1, 1))]], dtype=ndtype)
+        test = (a[0, 0] == a)
+        assert_equal(test.data, [[True, False], [False, False]])
+        assert_equal(test.mask, [[False, False], [False, True]])
+        assert_(test.fill_value == True)
+
+    def test_ne_on_structured(self):
+        # Test the equality of structured arrays
+        ndtype = [('A', int), ('B', int)]
+        a = array([(1, 1), (2, 2)], mask=[(0, 1), (0, 0)], dtype=ndtype)
+
+        test = (a != a)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [False, False])
+        assert_(test.fill_value == True)
+
+        test = (a != a[0])
+        assert_equal(test.data, [False, True])
+        assert_equal(test.mask, [False, False])
+        assert_(test.fill_value == True)
+
+        b = array([(1, 1), (2, 2)], mask=[(1, 0), (0, 0)], dtype=ndtype)
+        test = (a != b)
+        assert_equal(test.data, [True, False])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = (a[0] != b)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        b = array([(1, 1), (2, 2)], mask=[(0, 1), (1, 0)], dtype=ndtype)
+        test = (a != b)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [False, False])
+        assert_(test.fill_value == True)
+
+        # complicated dtype, 2-dimensional array.
+        ndtype = [('A', int), ('B', [('BA', int), ('BB', int)])]
+        a = array([[(1, (1, 1)), (2, (2, 2))],
+                   [(3, (3, 3)), (4, (4, 4))]],
+                  mask=[[(0, (1, 0)), (0, (0, 1))],
+                        [(1, (0, 0)), (1, (1, 1))]], dtype=ndtype)
+        test = (a[0, 0] != a)
+        assert_equal(test.data, [[False, True], [True, True]])
+        assert_equal(test.mask, [[False, False], [False, True]])
+        assert_(test.fill_value == True)
+
+    def test_eq_ne_structured_with_non_masked(self):
+        a = array([(1, 1), (2, 2), (3, 4)],
+                  mask=[(0, 1), (0, 0), (1, 1)], dtype='i4,i4')
+        eq = a == a.data
+        ne = a.data != a
+        # Test the obvious.
+        assert_(np.all(eq))
+        assert_(not np.any(ne))
+        # Expect the mask set only for items with all fields masked.
+        expected_mask = a.mask == np.ones((), a.mask.dtype)
+        assert_array_equal(eq.mask, expected_mask)
+        assert_array_equal(ne.mask, expected_mask)
+        # The masked element will indicated not equal, because the
+        # masks did not match.
+        assert_equal(eq.data, [True, True, False])
+        assert_array_equal(eq.data, ~ne.data)
+
+    def test_eq_ne_structured_extra(self):
+        # ensure simple examples are symmetric and make sense.
+        # from https://github.com/numpy/numpy/pull/8590#discussion_r101126465
+        dt = np.dtype('i4,i4')
+        for m1 in (mvoid((1, 2), mask=(0, 0), dtype=dt),
+                   mvoid((1, 2), mask=(0, 1), dtype=dt),
+                   mvoid((1, 2), mask=(1, 0), dtype=dt),
+                   mvoid((1, 2), mask=(1, 1), dtype=dt)):
+            ma1 = m1.view(MaskedArray)
+            r1 = ma1.view('2i4')
+            for m2 in (np.array((1, 1), dtype=dt),
+                       mvoid((1, 1), dtype=dt),
+                       mvoid((1, 0), mask=(0, 1), dtype=dt),
+                       mvoid((3, 2), mask=(0, 1), dtype=dt)):
+                ma2 = m2.view(MaskedArray)
+                r2 = ma2.view('2i4')
+                eq_expected = (r1 == r2).all()
+                assert_equal(m1 == m2, eq_expected)
+                assert_equal(m2 == m1, eq_expected)
+                assert_equal(ma1 == m2, eq_expected)
+                assert_equal(m1 == ma2, eq_expected)
+                assert_equal(ma1 == ma2, eq_expected)
+                # Also check it is the same if we do it element by element.
+                el_by_el = [m1[name] == m2[name] for name in dt.names]
+                assert_equal(array(el_by_el, dtype=bool).all(), eq_expected)
+                ne_expected = (r1 != r2).any()
+                assert_equal(m1 != m2, ne_expected)
+                assert_equal(m2 != m1, ne_expected)
+                assert_equal(ma1 != m2, ne_expected)
+                assert_equal(m1 != ma2, ne_expected)
+                assert_equal(ma1 != ma2, ne_expected)
+                el_by_el = [m1[name] != m2[name] for name in dt.names]
+                assert_equal(array(el_by_el, dtype=bool).any(), ne_expected)
+
+    @pytest.mark.parametrize('dt', ['S', 'U', 'T'])
+    @pytest.mark.parametrize('fill', [None, 'A'])
+    def test_eq_for_strings(self, dt, fill):
+        # Test the equality of structured arrays
+        a = array(['a', 'b'], dtype=dt, mask=[0, 1], fill_value=fill)
+
+        test = (a == a)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        test = (a == a[0])
+        assert_equal(test.data, [True, False])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        b = array(['a', 'b'], dtype=dt, mask=[1, 0], fill_value=fill)
+        test = (a == b)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, True])
+        assert_(test.fill_value == True)
+
+        test = (a[0] == b)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = (b == a[0])
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+    @pytest.mark.parametrize('dt', ['S', 'U', 'T'])
+    @pytest.mark.parametrize('fill', [None, 'A'])
+    def test_ne_for_strings(self, dt, fill):
+        # Test the equality of structured arrays
+        a = array(['a', 'b'], dtype=dt, mask=[0, 1], fill_value=fill)
+
+        test = (a != a)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        test = (a != a[0])
+        assert_equal(test.data, [False, True])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        b = array(['a', 'b'], dtype=dt, mask=[1, 0], fill_value=fill)
+        test = (a != b)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, True])
+        assert_(test.fill_value == True)
+
+        test = (a[0] != b)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = (b != a[0])
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+    @pytest.mark.parametrize('dt1', num_dts, ids=num_ids)
+    @pytest.mark.parametrize('dt2', num_dts, ids=num_ids)
+    @pytest.mark.parametrize('fill', [None, 1])
+    def test_eq_for_numeric(self, dt1, dt2, fill):
+        # Test the equality of structured arrays
+        a = array([0, 1], dtype=dt1, mask=[0, 1], fill_value=fill)
+
+        test = (a == a)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        test = (a == a[0])
+        assert_equal(test.data, [True, False])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        b = array([0, 1], dtype=dt2, mask=[1, 0], fill_value=fill)
+        test = (a == b)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, True])
+        assert_(test.fill_value == True)
+
+        test = (a[0] == b)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = (b == a[0])
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+    @pytest.mark.parametrize("op", [operator.eq, operator.lt])
+    def test_eq_broadcast_with_unmasked(self, op):
+        a = array([0, 1], mask=[0, 1])
+        b = np.arange(10).reshape(5, 2)
+        result = op(a, b)
+        assert_(result.mask.shape == b.shape)
+        assert_equal(result.mask, np.zeros(b.shape, bool) | a.mask)
+
+    @pytest.mark.parametrize("op", [operator.eq, operator.gt])
+    def test_comp_no_mask_not_broadcast(self, op):
+        # Regression test for failing doctest in MaskedArray.nonzero
+        # after gh-24556.
+        a = array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
+        result = op(a, 3)
+        assert_(not result.mask.shape)
+        assert_(result.mask is nomask)
+
+    @pytest.mark.parametrize('dt1', num_dts, ids=num_ids)
+    @pytest.mark.parametrize('dt2', num_dts, ids=num_ids)
+    @pytest.mark.parametrize('fill', [None, 1])
+    def test_ne_for_numeric(self, dt1, dt2, fill):
+        # Test the equality of structured arrays
+        a = array([0, 1], dtype=dt1, mask=[0, 1], fill_value=fill)
+
+        test = (a != a)
+        assert_equal(test.data, [False, False])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        test = (a != a[0])
+        assert_equal(test.data, [False, True])
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        b = array([0, 1], dtype=dt2, mask=[1, 0], fill_value=fill)
+        test = (a != b)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, True])
+        assert_(test.fill_value == True)
+
+        test = (a[0] != b)
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = (b != a[0])
+        assert_equal(test.data, [True, True])
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+    @pytest.mark.parametrize('dt1', num_dts, ids=num_ids)
+    @pytest.mark.parametrize('dt2', num_dts, ids=num_ids)
+    @pytest.mark.parametrize('fill', [None, 1])
+    @pytest.mark.parametrize('op',
+            [operator.le, operator.lt, operator.ge, operator.gt])
+    def test_comparisons_for_numeric(self, op, dt1, dt2, fill):
+        # Test the equality of structured arrays
+        a = array([0, 1], dtype=dt1, mask=[0, 1], fill_value=fill)
+
+        test = op(a, a)
+        assert_equal(test.data, op(a._data, a._data))
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        test = op(a, a[0])
+        assert_equal(test.data, op(a._data, a._data[0]))
+        assert_equal(test.mask, [False, True])
+        assert_(test.fill_value == True)
+
+        b = array([0, 1], dtype=dt2, mask=[1, 0], fill_value=fill)
+        test = op(a, b)
+        assert_equal(test.data, op(a._data, b._data))
+        assert_equal(test.mask, [True, True])
+        assert_(test.fill_value == True)
+
+        test = op(a[0], b)
+        assert_equal(test.data, op(a._data[0], b._data))
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+        test = op(b, a[0])
+        assert_equal(test.data, op(b._data, a._data[0]))
+        assert_equal(test.mask, [True, False])
+        assert_(test.fill_value == True)
+
+    @pytest.mark.parametrize('dt', ['S', 'U', 'T'])
+    @pytest.mark.parametrize('op',
+            [operator.le, operator.lt, operator.ge, operator.gt])
+    @pytest.mark.parametrize('fill', [None, "N/A"])
+    def test_comparisons_strings(self, dt, op, fill):
+        # See gh-21770, mask propagation is broken for strings (and some other
+        # cases) so we explicitly test strings here.
+        # In principle only == and != may need special handling...
+        ma1 = masked_array(["a", "b", "cde"], mask=[0, 1, 0], fill_value=fill, dtype=dt)
+        ma2 = masked_array(["cde", "b", "a"], mask=[0, 1, 0], fill_value=fill, dtype=dt)
+        assert_equal(op(ma1, ma2)._data, op(ma1._data, ma2._data))
+
+        if isinstance(fill, str):
+            fill = np.array(fill, dtype=dt)
+
+        ma1 = masked_array(["a", "b", "cde"], mask=[0, 1, 0], fill_value=fill, dtype=dt)
+        ma2 = masked_array(["cde", "b", "a"], mask=[0, 1, 0], fill_value=fill, dtype=dt)
+        assert_equal(op(ma1, ma2)._data, op(ma1._data, ma2._data))
+
+    @pytest.mark.filterwarnings("ignore:.*Comparison to `None`.*:FutureWarning")
+    def test_eq_with_None(self):
+        # Really, comparisons with None should not be done, but check them
+        # anyway. Note that pep8 will flag these tests.
+        # Deprecation is in place for arrays, and when it happens this
+        # test will fail (and have to be changed accordingly).
+
+        # With partial mask
+        a = array([None, 1], mask=[0, 1])
+        assert_equal(a == None, array([True, False], mask=[0, 1]))  # noqa: E711
+        assert_equal(a.data == None, [True, False])  # noqa: E711
+        assert_equal(a != None, array([False, True], mask=[0, 1]))  # noqa: E711
+        # With nomask
+        a = array([None, 1], mask=False)
+        assert_equal(a == None, [True, False])  # noqa: E711
+        assert_equal(a != None, [False, True])  # noqa: E711
+        # With complete mask
+        a = array([None, 2], mask=True)
+        assert_equal(a == None, array([False, True], mask=True))  # noqa: E711
+        assert_equal(a != None, array([True, False], mask=True))  # noqa: E711
+        # Fully masked, even comparison to None should return "masked"
+        a = masked
+        assert_equal(a == None, masked)  # noqa: E711
+
+    def test_eq_with_scalar(self):
+        a = array(1)
+        assert_equal(a == 1, True)
+        assert_equal(a == 0, False)
+        assert_equal(a != 1, False)
+        assert_equal(a != 0, True)
+        b = array(1, mask=True)
+        assert_equal(b == 0, masked)
+        assert_equal(b == 1, masked)
+        assert_equal(b != 0, masked)
+        assert_equal(b != 1, masked)
+
+    def test_eq_different_dimensions(self):
+        m1 = array([1, 1], mask=[0, 1])
+        # test comparison with both masked and regular arrays.
+        for m2 in (array([[0, 1], [1, 2]]),
+                   np.array([[0, 1], [1, 2]])):
+            test = (m1 == m2)
+            assert_equal(test.data, [[False, False],
+                                     [True, False]])
+            assert_equal(test.mask, [[False, True],
+                                     [False, True]])
+
+    def test_numpyarithmetic(self):
+        # Check that the mask is not back-propagated when using numpy functions
+        a = masked_array([-1, 0, 1, 2, 3], mask=[0, 0, 0, 0, 1])
+        control = masked_array([np.nan, np.nan, 0, np.log(2), -1],
+                               mask=[1, 1, 0, 0, 1])
+
+        test = log(a)
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        assert_equal(a.mask, [0, 0, 0, 0, 1])
+
+        test = np.log(a)
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        assert_equal(a.mask, [0, 0, 0, 0, 1])
+
+
+class TestMaskedArrayAttributes:
+
+    def test_keepmask(self):
+        # Tests the keep mask flag
+        x = masked_array([1, 2, 3], mask=[1, 0, 0])
+        mx = masked_array(x)
+        assert_equal(mx.mask, x.mask)
+        mx = masked_array(x, mask=[0, 1, 0], keep_mask=False)
+        assert_equal(mx.mask, [0, 1, 0])
+        mx = masked_array(x, mask=[0, 1, 0], keep_mask=True)
+        assert_equal(mx.mask, [1, 1, 0])
+        # We default to true
+        mx = masked_array(x, mask=[0, 1, 0])
+        assert_equal(mx.mask, [1, 1, 0])
+
+    def test_hardmask(self):
+        # Test hard_mask
+        d = arange(5)
+        n = [0, 0, 0, 1, 1]
+        m = make_mask(n)
+        xh = array(d, mask=m, hard_mask=True)
+        # We need to copy, to avoid updating d in xh !
+        xs = array(d, mask=m, hard_mask=False, copy=True)
+        xh[[1, 4]] = [10, 40]
+        xs[[1, 4]] = [10, 40]
+        assert_equal(xh._data, [0, 10, 2, 3, 4])
+        assert_equal(xs._data, [0, 10, 2, 3, 40])
+        assert_equal(xs.mask, [0, 0, 0, 1, 0])
+        assert_(xh._hardmask)
+        assert_(not xs._hardmask)
+        xh[1:4] = [10, 20, 30]
+        xs[1:4] = [10, 20, 30]
+        assert_equal(xh._data, [0, 10, 20, 3, 4])
+        assert_equal(xs._data, [0, 10, 20, 30, 40])
+        assert_equal(xs.mask, nomask)
+        xh[0] = masked
+        xs[0] = masked
+        assert_equal(xh.mask, [1, 0, 0, 1, 1])
+        assert_equal(xs.mask, [1, 0, 0, 0, 0])
+        xh[:] = 1
+        xs[:] = 1
+        assert_equal(xh._data, [0, 1, 1, 3, 4])
+        assert_equal(xs._data, [1, 1, 1, 1, 1])
+        assert_equal(xh.mask, [1, 0, 0, 1, 1])
+        assert_equal(xs.mask, nomask)
+        # Switch to soft mask
+        xh.soften_mask()
+        xh[:] = arange(5)
+        assert_equal(xh._data, [0, 1, 2, 3, 4])
+        assert_equal(xh.mask, nomask)
+        # Switch back to hard mask
+        xh.harden_mask()
+        xh[xh < 3] = masked
+        assert_equal(xh._data, [0, 1, 2, 3, 4])
+        assert_equal(xh._mask, [1, 1, 1, 0, 0])
+        xh[filled(xh > 1, False)] = 5
+        assert_equal(xh._data, [0, 1, 2, 5, 5])
+        assert_equal(xh._mask, [1, 1, 1, 0, 0])
+
+        xh = array([[1, 2], [3, 4]], mask=[[1, 0], [0, 0]], hard_mask=True)
+        xh[0] = 0
+        assert_equal(xh._data, [[1, 0], [3, 4]])
+        assert_equal(xh._mask, [[1, 0], [0, 0]])
+        xh[-1, -1] = 5
+        assert_equal(xh._data, [[1, 0], [3, 5]])
+        assert_equal(xh._mask, [[1, 0], [0, 0]])
+        xh[filled(xh < 5, False)] = 2
+        assert_equal(xh._data, [[1, 2], [2, 5]])
+        assert_equal(xh._mask, [[1, 0], [0, 0]])
+
+    def test_hardmask_again(self):
+        # Another test of hardmask
+        d = arange(5)
+        n = [0, 0, 0, 1, 1]
+        m = make_mask(n)
+        xh = array(d, mask=m, hard_mask=True)
+        xh[4:5] = 999
+        xh[0:1] = 999
+        assert_equal(xh._data, [999, 1, 2, 3, 4])
+
+    def test_hardmask_oncemore_yay(self):
+        # OK, yet another test of hardmask
+        # Make sure that harden_mask/soften_mask//unshare_mask returns self
+        a = array([1, 2, 3], mask=[1, 0, 0])
+        b = a.harden_mask()
+        assert_equal(a, b)
+        b[0] = 0
+        assert_equal(a, b)
+        assert_equal(b, array([1, 2, 3], mask=[1, 0, 0]))
+        a = b.soften_mask()
+        a[0] = 0
+        assert_equal(a, b)
+        assert_equal(b, array([0, 2, 3], mask=[0, 0, 0]))
+
+    def test_smallmask(self):
+        # Checks the behaviour of _smallmask
+        a = arange(10)
+        a[1] = masked
+        a[1] = 1
+        assert_equal(a._mask, nomask)
+        a = arange(10)
+        a._smallmask = False
+        a[1] = masked
+        a[1] = 1
+        assert_equal(a._mask, zeros(10))
+
+    def test_shrink_mask(self):
+        # Tests .shrink_mask()
+        a = array([1, 2, 3], mask=[0, 0, 0])
+        b = a.shrink_mask()
+        assert_equal(a, b)
+        assert_equal(a.mask, nomask)
+
+        # Mask cannot be shrunk on structured types, so is a no-op
+        a = np.ma.array([(1, 2.0)], [('a', int), ('b', float)])
+        b = a.copy()
+        a.shrink_mask()
+        assert_equal(a.mask, b.mask)
+
+    def test_flat(self):
+        # Test that flat can return all types of items [#4585, #4615]
+        # test 2-D record array
+        # ... on structured array w/ masked records
+        x = array([[(1, 1.1, 'one'), (2, 2.2, 'two'), (3, 3.3, 'thr')],
+                   [(4, 4.4, 'fou'), (5, 5.5, 'fiv'), (6, 6.6, 'six')]],
+                  dtype=[('a', int), ('b', float), ('c', '|S8')])
+        x['a'][0, 1] = masked
+        x['b'][1, 0] = masked
+        x['c'][0, 2] = masked
+        x[-1, -1] = masked
+        xflat = x.flat
+        assert_equal(xflat[0], x[0, 0])
+        assert_equal(xflat[1], x[0, 1])
+        assert_equal(xflat[2], x[0, 2])
+        assert_equal(xflat[:3], x[0])
+        assert_equal(xflat[3], x[1, 0])
+        assert_equal(xflat[4], x[1, 1])
+        assert_equal(xflat[5], x[1, 2])
+        assert_equal(xflat[3:], x[1])
+        assert_equal(xflat[-1], x[-1, -1])
+        i = 0
+        j = 0
+        for xf in xflat:
+            assert_equal(xf, x[j, i])
+            i += 1
+            if i >= x.shape[-1]:
+                i = 0
+                j += 1
+
+    def test_assign_dtype(self):
+        # check that the mask's dtype is updated when dtype is changed
+        a = np.zeros(4, dtype='f4,i4')
+
+        m = np.ma.array(a)
+        m.dtype = np.dtype('f4')
+        repr(m)  # raises?
+        assert_equal(m.dtype, np.dtype('f4'))
+
+        # check that dtype changes that change shape of mask too much
+        # are not allowed
+        def assign():
+            m = np.ma.array(a)
+            m.dtype = np.dtype('f8')
+        assert_raises(ValueError, assign)
+
+        b = a.view(dtype='f4', type=np.ma.MaskedArray)  # raises?
+        assert_equal(b.dtype, np.dtype('f4'))
+
+        # check that nomask is preserved
+        a = np.zeros(4, dtype='f4')
+        m = np.ma.array(a)
+        m.dtype = np.dtype('f4,i4')
+        assert_equal(m.dtype, np.dtype('f4,i4'))
+        assert_equal(m._mask, np.ma.nomask)
+
+
+class TestFillingValues:
+
+    def test_check_on_scalar(self):
+        # Test _check_fill_value set to valid and invalid values
+        _check_fill_value = np.ma.core._check_fill_value
+
+        fval = _check_fill_value(0, int)
+        assert_equal(fval, 0)
+        fval = _check_fill_value(None, int)
+        assert_equal(fval, default_fill_value(0))
+
+        fval = _check_fill_value(0, "|S3")
+        assert_equal(fval, b"0")
+        fval = _check_fill_value(None, "|S3")
+        assert_equal(fval, default_fill_value(b"camelot!"))
+        assert_raises(TypeError, _check_fill_value, 1e+20, int)
+        assert_raises(TypeError, _check_fill_value, 'stuff', int)
+
+    def test_check_on_fields(self):
+        # Tests _check_fill_value with records
+        _check_fill_value = np.ma.core._check_fill_value
+        ndtype = [('a', int), ('b', float), ('c', "|S3")]
+        # A check on a list should return a single record
+        fval = _check_fill_value([-999, -12345678.9, "???"], ndtype)
+        assert_(isinstance(fval, ndarray))
+        assert_equal(fval.item(), [-999, -12345678.9, b"???"])
+        # A check on None should output the defaults
+        fval = _check_fill_value(None, ndtype)
+        assert_(isinstance(fval, ndarray))
+        assert_equal(fval.item(), [default_fill_value(0),
+                                   default_fill_value(0.),
+                                   asbytes(default_fill_value("0"))])
+        #.....Using a structured type as fill_value should work
+        fill_val = np.array((-999, -12345678.9, "???"), dtype=ndtype)
+        fval = _check_fill_value(fill_val, ndtype)
+        assert_(isinstance(fval, ndarray))
+        assert_equal(fval.item(), [-999, -12345678.9, b"???"])
+
+        #.....Using a flexible type w/ a different type shouldn't matter
+        # BEHAVIOR in 1.5 and earlier, and 1.13 and later: match structured
+        # types by position
+        fill_val = np.array((-999, -12345678.9, "???"),
+                            dtype=[("A", int), ("B", float), ("C", "|S3")])
+        fval = _check_fill_value(fill_val, ndtype)
+        assert_(isinstance(fval, ndarray))
+        assert_equal(fval.item(), [-999, -12345678.9, b"???"])
+
+        #.....Using an object-array shouldn't matter either
+        fill_val = np.ndarray(shape=(1,), dtype=object)
+        fill_val[0] = (-999, -12345678.9, b"???")
+        fval = _check_fill_value(fill_val, object)
+        assert_(isinstance(fval, ndarray))
+        assert_equal(fval.item(), [-999, -12345678.9, b"???"])
+        # NOTE: This test was never run properly as "fill_value" rather than
+        # "fill_val" was assigned.  Written properly, it fails.
+        #fill_val = np.array((-999, -12345678.9, "???"))
+        #fval = _check_fill_value(fill_val, ndtype)
+        #assert_(isinstance(fval, ndarray))
+        #assert_equal(fval.item(), [-999, -12345678.9, b"???"])
+        #.....One-field-only flexible type should work as well
+        ndtype = [("a", int)]
+        fval = _check_fill_value(-999999999, ndtype)
+        assert_(isinstance(fval, ndarray))
+        assert_equal(fval.item(), (-999999999,))
+
+    def test_fillvalue_conversion(self):
+        # Tests the behavior of fill_value during conversion
+        # We had a tailored comment to make sure special attributes are
+        # properly dealt with
+        a = array([b'3', b'4', b'5'])
+        a._optinfo.update({'comment': "updated!"})
+
+        b = array(a, dtype=int)
+        assert_equal(b._data, [3, 4, 5])
+        assert_equal(b.fill_value, default_fill_value(0))
+
+        b = array(a, dtype=float)
+        assert_equal(b._data, [3, 4, 5])
+        assert_equal(b.fill_value, default_fill_value(0.))
+
+        b = a.astype(int)
+        assert_equal(b._data, [3, 4, 5])
+        assert_equal(b.fill_value, default_fill_value(0))
+        assert_equal(b._optinfo['comment'], "updated!")
+
+        b = a.astype([('a', '|S3')])
+        assert_equal(b['a']._data, a._data)
+        assert_equal(b['a'].fill_value, a.fill_value)
+
+    def test_default_fill_value(self):
+        # check all calling conventions
+        f1 = default_fill_value(1.)
+        f2 = default_fill_value(np.array(1.))
+        f3 = default_fill_value(np.array(1.).dtype)
+        assert_equal(f1, f2)
+        assert_equal(f1, f3)
+
+    def test_default_fill_value_structured(self):
+        fields = array([(1, 1, 1)],
+                      dtype=[('i', int), ('s', '|S8'), ('f', float)])
+
+        f1 = default_fill_value(fields)
+        f2 = default_fill_value(fields.dtype)
+        expected = np.array((default_fill_value(0),
+                             default_fill_value('0'),
+                             default_fill_value(0.)), dtype=fields.dtype)
+        assert_equal(f1, expected)
+        assert_equal(f2, expected)
+
+    def test_default_fill_value_void(self):
+        dt = np.dtype([('v', 'V7')])
+        f = default_fill_value(dt)
+        assert_equal(f['v'], np.array(default_fill_value(dt['v']), dt['v']))
+
+    def test_fillvalue(self):
+        # Yet more fun with the fill_value
+        data = masked_array([1, 2, 3], fill_value=-999)
+        series = data[[0, 2, 1]]
+        assert_equal(series._fill_value, data._fill_value)
+
+        mtype = [('f', float), ('s', '|S3')]
+        x = array([(1, 'a'), (2, 'b'), (pi, 'pi')], dtype=mtype)
+        x.fill_value = 999
+        assert_equal(x.fill_value.item(), [999., b'999'])
+        assert_equal(x['f'].fill_value, 999)
+        assert_equal(x['s'].fill_value, b'999')
+
+        x.fill_value = (9, '???')
+        assert_equal(x.fill_value.item(), (9, b'???'))
+        assert_equal(x['f'].fill_value, 9)
+        assert_equal(x['s'].fill_value, b'???')
+
+        x = array([1, 2, 3.1])
+        x.fill_value = 999
+        assert_equal(np.asarray(x.fill_value).dtype, float)
+        assert_equal(x.fill_value, 999.)
+        assert_equal(x._fill_value, np.array(999.))
+
+    @pytest.mark.filterwarnings("ignore:.*Numpy has detected.*:FutureWarning")
+    def test_subarray_fillvalue(self):
+        # gh-10483   test multi-field index fill value
+        fields = array([(1, 1, 1)],
+                      dtype=[('i', int), ('s', '|S8'), ('f', float)])
+        subfields = fields[['i', 'f']]
+        assert_equal(tuple(subfields.fill_value), (999999, 1.e+20))
+        # test comparison does not raise:
+        subfields[1:] == subfields[:-1]
+
+    def test_fillvalue_exotic_dtype(self):
+        # Tests yet more exotic flexible dtypes
+        _check_fill_value = np.ma.core._check_fill_value
+        ndtype = [('i', int), ('s', '|S8'), ('f', float)]
+        control = np.array((default_fill_value(0),
+                            default_fill_value('0'),
+                            default_fill_value(0.),),
+                           dtype=ndtype)
+        assert_equal(_check_fill_value(None, ndtype), control)
+        # The shape shouldn't matter
+        ndtype = [('f0', float, (2, 2))]
+        control = np.array((default_fill_value(0.),),
+                           dtype=[('f0', float)]).astype(ndtype)
+        assert_equal(_check_fill_value(None, ndtype), control)
+        control = np.array((0,), dtype=[('f0', float)]).astype(ndtype)
+        assert_equal(_check_fill_value(0, ndtype), control)
+
+        ndtype = np.dtype("int, (2,3)float, float")
+        control = np.array((default_fill_value(0),
+                            default_fill_value(0.),
+                            default_fill_value(0.),),
+                           dtype="int, float, float").astype(ndtype)
+        test = _check_fill_value(None, ndtype)
+        assert_equal(test, control)
+        control = np.array((0, 0, 0), dtype="int, float, float").astype(ndtype)
+        assert_equal(_check_fill_value(0, ndtype), control)
+        # but when indexing, fill value should become scalar not tuple
+        # See issue #6723
+        M = masked_array(control)
+        assert_equal(M["f1"].fill_value.ndim, 0)
+
+    def test_fillvalue_datetime_timedelta(self):
+        # Test default fillvalue for datetime64 and timedelta64 types.
+        # See issue #4476, this would return '?' which would cause errors
+        # elsewhere
+
+        for timecode in ("as", "fs", "ps", "ns", "us", "ms", "s", "m",
+                         "h", "D", "W", "M", "Y"):
+            control = numpy.datetime64("NaT", timecode)
+            test = default_fill_value(numpy.dtype("<M8[" + timecode + "]"))
+            np.testing.assert_equal(test, control)
+
+            control = numpy.timedelta64("NaT", timecode)
+            test = default_fill_value(numpy.dtype("<m8[" + timecode + "]"))
+            np.testing.assert_equal(test, control)
+
+    def test_extremum_fill_value(self):
+        # Tests extremum fill values for flexible type.
+        a = array([(1, (2, 3)), (4, (5, 6))],
+                  dtype=[('A', int), ('B', [('BA', int), ('BB', int)])])
+        test = a.fill_value
+        assert_equal(test.dtype, a.dtype)
+        assert_equal(test['A'], default_fill_value(a['A']))
+        assert_equal(test['B']['BA'], default_fill_value(a['B']['BA']))
+        assert_equal(test['B']['BB'], default_fill_value(a['B']['BB']))
+
+        test = minimum_fill_value(a)
+        assert_equal(test.dtype, a.dtype)
+        assert_equal(test[0], minimum_fill_value(a['A']))
+        assert_equal(test[1][0], minimum_fill_value(a['B']['BA']))
+        assert_equal(test[1][1], minimum_fill_value(a['B']['BB']))
+        assert_equal(test[1], minimum_fill_value(a['B']))
+
+        test = maximum_fill_value(a)
+        assert_equal(test.dtype, a.dtype)
+        assert_equal(test[0], maximum_fill_value(a['A']))
+        assert_equal(test[1][0], maximum_fill_value(a['B']['BA']))
+        assert_equal(test[1][1], maximum_fill_value(a['B']['BB']))
+        assert_equal(test[1], maximum_fill_value(a['B']))
+
+    def test_extremum_fill_value_subdtype(self):
+        a = array(([2, 3, 4],), dtype=[('value', np.int8, 3)])
+
+        test = minimum_fill_value(a)
+        assert_equal(test.dtype, a.dtype)
+        assert_equal(test[0], np.full(3, minimum_fill_value(a['value'])))
+
+        test = maximum_fill_value(a)
+        assert_equal(test.dtype, a.dtype)
+        assert_equal(test[0], np.full(3, maximum_fill_value(a['value'])))
+
+    def test_fillvalue_individual_fields(self):
+        # Test setting fill_value on individual fields
+        ndtype = [('a', int), ('b', int)]
+        # Explicit fill_value
+        a = array(list(zip([1, 2, 3], [4, 5, 6])),
+                  fill_value=(-999, -999), dtype=ndtype)
+        aa = a['a']
+        aa.set_fill_value(10)
+        assert_equal(aa._fill_value, np.array(10))
+        assert_equal(tuple(a.fill_value), (10, -999))
+        a.fill_value['b'] = -10
+        assert_equal(tuple(a.fill_value), (10, -10))
+        # Implicit fill_value
+        t = array(list(zip([1, 2, 3], [4, 5, 6])), dtype=ndtype)
+        tt = t['a']
+        tt.set_fill_value(10)
+        assert_equal(tt._fill_value, np.array(10))
+        assert_equal(tuple(t.fill_value), (10, default_fill_value(0)))
+
+    def test_fillvalue_implicit_structured_array(self):
+        # Check that fill_value is always defined for structured arrays
+        ndtype = ('b', float)
+        adtype = ('a', float)
+        a = array([(1.,), (2.,)], mask=[(False,), (False,)],
+                  fill_value=(np.nan,), dtype=np.dtype([adtype]))
+        b = empty(a.shape, dtype=[adtype, ndtype])
+        b['a'] = a['a']
+        b['a'].set_fill_value(a['a'].fill_value)
+        f = b._fill_value[()]
+        assert_(np.isnan(f[0]))
+        assert_equal(f[-1], default_fill_value(1.))
+
+    def test_fillvalue_as_arguments(self):
+        # Test adding a fill_value parameter to empty/ones/zeros
+        a = empty(3, fill_value=999.)
+        assert_equal(a.fill_value, 999.)
+
+        a = ones(3, fill_value=999., dtype=float)
+        assert_equal(a.fill_value, 999.)
+
+        a = zeros(3, fill_value=0., dtype=complex)
+        assert_equal(a.fill_value, 0.)
+
+        a = identity(3, fill_value=0., dtype=complex)
+        assert_equal(a.fill_value, 0.)
+
+    def test_shape_argument(self):
+        # Test that shape can be provides as an argument
+        # GH issue 6106
+        a = empty(shape=(3, ))
+        assert_equal(a.shape, (3, ))
+
+        a = ones(shape=(3, ), dtype=float)
+        assert_equal(a.shape, (3, ))
+
+        a = zeros(shape=(3, ), dtype=complex)
+        assert_equal(a.shape, (3, ))
+
+    def test_fillvalue_in_view(self):
+        # Test the behavior of fill_value in view
+
+        # Create initial masked array
+        x = array([1, 2, 3], fill_value=1, dtype=np.int64)
+
+        # Check that fill_value is preserved by default
+        y = x.view()
+        assert_(y.fill_value == 1)
+
+        # Check that fill_value is preserved if dtype is specified and the
+        # dtype is an ndarray sub-class and has a _fill_value attribute
+        y = x.view(MaskedArray)
+        assert_(y.fill_value == 1)
+
+        # Check that fill_value is preserved if type is specified and the
+        # dtype is an ndarray sub-class and has a _fill_value attribute (by
+        # default, the first argument is dtype, not type)
+        y = x.view(type=MaskedArray)
+        assert_(y.fill_value == 1)
+
+        # Check that code does not crash if passed an ndarray sub-class that
+        # does not have a _fill_value attribute
+        y = x.view(np.ndarray)
+        y = x.view(type=np.ndarray)
+
+        # Check that fill_value can be overridden with view
+        y = x.view(MaskedArray, fill_value=2)
+        assert_(y.fill_value == 2)
+
+        # Check that fill_value can be overridden with view (using type=)
+        y = x.view(type=MaskedArray, fill_value=2)
+        assert_(y.fill_value == 2)
+
+        # Check that fill_value gets reset if passed a dtype but not a
+        # fill_value. This is because even though in some cases one can safely
+        # cast the fill_value, e.g. if taking an int64 view of an int32 array,
+        # in other cases, this cannot be done (e.g. int32 view of an int64
+        # array with a large fill_value).
+        y = x.view(dtype=np.int32)
+        assert_(y.fill_value == 999999)
+
+    def test_fillvalue_bytes_or_str(self):
+        # Test whether fill values work as expected for structured dtypes
+        # containing bytes or str.  See issue #7259.
+        a = empty(shape=(3, ), dtype="(2,)3S,(2,)3U")
+        assert_equal(a["f0"].fill_value, default_fill_value(b"spam"))
+        assert_equal(a["f1"].fill_value, default_fill_value("eggs"))
+
+
+class TestUfuncs:
+    # Test class for the application of ufuncs on MaskedArrays.
+    def _create_data(self):
+        # Base data definition.
+        return (array([1.0, 0, -1, pi / 2] * 2, mask=[0, 1] + [0] * 6),
+                  array([1.0, 0, -1, pi / 2] * 2, mask=[1, 0] + [0] * 6),)
+
+    @pytest.fixture(autouse=True, scope="class")
+    def err_status(self):
+        err = np.geterr()
+        np.seterr(divide='ignore', invalid='ignore')
+        yield err
+        np.seterr(**err)
+
+    def test_testUfuncRegression(self):
+        # Tests new ufuncs on MaskedArrays.
+        for f in ['sqrt', 'log', 'log10', 'exp', 'conjugate',
+                  'sin', 'cos', 'tan',
+                  'arcsin', 'arccos', 'arctan',
+                  'sinh', 'cosh', 'tanh',
+                  'arcsinh',
+                  'arccosh',
+                  'arctanh',
+                  'absolute', 'fabs', 'negative',
+                  'floor', 'ceil',
+                  'logical_not',
+                  'add', 'subtract', 'multiply',
+                  'divide', 'true_divide', 'floor_divide',
+                  'remainder', 'fmod', 'hypot', 'arctan2',
+                  'equal', 'not_equal', 'less_equal', 'greater_equal',
+                  'less', 'greater',
+                  'logical_and', 'logical_or', 'logical_xor',
+                  ]:
+            try:
+                uf = getattr(umath, f)
+            except AttributeError:
+                uf = getattr(fromnumeric, f)
+            mf = getattr(numpy.ma.core, f)
+            args = self._create_data()[:uf.nin]
+            ur = uf(*args)
+            mr = mf(*args)
+            assert_equal(ur.filled(0), mr.filled(0), f)
+            assert_mask_equal(ur.mask, mr.mask, err_msg=f)
+
+    def test_reduce(self):
+        # Tests reduce on MaskedArrays.
+        a = self._create_data()[0]
+        assert_(not alltrue(a, axis=0))
+        assert_(sometrue(a, axis=0))
+        assert_equal(sum(a[:3], axis=0), 0)
+        assert_equal(product(a, axis=0), 0)
+        assert_equal(add.reduce(a), pi)
+
+    def test_minmax(self):
+        # Tests extrema on MaskedArrays.
+        a = arange(1, 13).reshape(3, 4)
+        amask = masked_where(a < 5, a)
+        assert_equal(amask.max(), a.max())
+        assert_equal(amask.min(), 5)
+        assert_equal(amask.max(0), a.max(0))
+        assert_equal(amask.min(0), [5, 6, 7, 8])
+        assert_(amask.max(1)[0].mask)
+        assert_(amask.min(1)[0].mask)
+
+    def test_ndarray_mask(self):
+        # Check that the mask of the result is a ndarray (not a MaskedArray...)
+        a = masked_array([-1, 0, 1, 2, 3], mask=[0, 0, 0, 0, 1])
+        test = np.sqrt(a)
+        control = masked_array([-1, 0, 1, np.sqrt(2), -1],
+                               mask=[1, 0, 0, 0, 1])
+        assert_equal(test, control)
+        assert_equal(test.mask, control.mask)
+        assert_(not isinstance(test.mask, MaskedArray))
+
+    def test_treatment_of_NotImplemented(self):
+        # Check that NotImplemented is returned at appropriate places
+
+        a = masked_array([1., 2.], mask=[1, 0])
+        assert_raises(TypeError, operator.mul, a, "abc")
+        assert_raises(TypeError, operator.truediv, a, "abc")
+
+        class MyClass:
+            __array_priority__ = a.__array_priority__ + 1
+
+            def __mul__(self, other):
+                return "My mul"
+
+            def __rmul__(self, other):
+                return "My rmul"
+
+        me = MyClass()
+        assert_(me * a == "My mul")
+        assert_(a * me == "My rmul")
+
+        # and that __array_priority__ is respected
+        class MyClass2:
+            __array_priority__ = 100
+
+            def __mul__(self, other):
+                return "Me2mul"
+
+            def __rmul__(self, other):
+                return "Me2rmul"
+
+            def __rtruediv__(self, other):
+                return "Me2rdiv"
+
+        me_too = MyClass2()
+        assert_(a.__mul__(me_too) is NotImplemented)
+        assert_(all(multiply.outer(a, me_too) == "Me2rmul"))
+        assert_(a.__truediv__(me_too) is NotImplemented)
+        assert_(me_too * a == "Me2mul")
+        assert_(a * me_too == "Me2rmul")
+        assert_(a / me_too == "Me2rdiv")
+
+    def test_no_masked_nan_warnings(self):
+        # check that a nan in masked position does not
+        # cause ufunc warnings
+
+        m = np.ma.array([0.5, np.nan], mask=[0, 1])
+
+        with warnings.catch_warnings():
+            warnings.filterwarnings("error")
+
+            # test unary and binary ufuncs
+            exp(m)
+            add(m, 1)
+            m > 0
+
+            # test different unary domains
+            sqrt(m)
+            log(m)
+            tan(m)
+            arcsin(m)
+            arccos(m)
+            arccosh(m)
+
+            # test binary domains
+            divide(m, 2)
+
+            # also check that allclose uses ma ufuncs, to avoid warning
+            allclose(m, 0.5)
+
+    def test_masked_array_underflow(self):
+        x = np.arange(0, 3, 0.1)
+        X = np.ma.array(x)
+        with np.errstate(under="raise"):
+            X2 = X / 2.0
+            np.testing.assert_array_equal(X2, x / 2)
+
+
+class TestMaskedArrayInPlaceArithmetic:
+    # Test MaskedArray Arithmetic
+    def _create_intdata(self):
+        x = arange(10)
+        y = arange(10)
+        xm = arange(10)
+        xm[2] = masked
+        return x, y, xm
+
+    def _create_floatdata(self):
+        x, y, xm = self._create_intdata()
+        return x.astype(float), y.astype(float), xm.astype(float)
+
+    def _create_otherdata(self):
+        o = np.typecodes['AllInteger'] + np.typecodes['AllFloat']
+        othertypes = [np.dtype(_).type for _ in o]
+        x, y, xm = self._create_intdata()
+        uint8data = (
+            x.astype(np.uint8),
+            y.astype(np.uint8),
+            xm.astype(np.uint8)
+        )
+        return othertypes, uint8data
+
+    def test_inplace_addition_scalar(self):
+        # Test of inplace additions
+        x, y, xm = self._create_intdata()
+        xm[2] = masked
+        x += 1
+        assert_equal(x, y + 1)
+        xm += 1
+        assert_equal(xm, y + 1)
+
+        x, _, xm = self._create_floatdata()
+        id1 = x.data.ctypes.data
+        x += 1.
+        assert_(id1 == x.data.ctypes.data)
+        assert_equal(x, y + 1.)
+
+    def test_inplace_addition_array(self):
+        # Test of inplace additions
+        x, y, xm = self._create_intdata()
+        m = xm.mask
+        a = arange(10, dtype=np.int16)
+        a[-1] = masked
+        x += a
+        xm += a
+        assert_equal(x, y + a)
+        assert_equal(xm, y + a)
+        assert_equal(xm.mask, mask_or(m, a.mask))
+
+    def test_inplace_subtraction_scalar(self):
+        # Test of inplace subtractions
+        x, y, xm = self._create_intdata()
+        x -= 1
+        assert_equal(x, y - 1)
+        xm -= 1
+        assert_equal(xm, y - 1)
+
+    def test_inplace_subtraction_array(self):
+        # Test of inplace subtractions
+        x, y, xm = self._create_floatdata()
+        m = xm.mask
+        a = arange(10, dtype=float)
+        a[-1] = masked
+        x -= a
+        xm -= a
+        assert_equal(x, y - a)
+        assert_equal(xm, y - a)
+        assert_equal(xm.mask, mask_or(m, a.mask))
+
+    def test_inplace_multiplication_scalar(self):
+        # Test of inplace multiplication
+        x, y, xm = self._create_floatdata()
+        x *= 2.0
+        assert_equal(x, y * 2)
+        xm *= 2.0
+        assert_equal(xm, y * 2)
+
+    def test_inplace_multiplication_array(self):
+        # Test of inplace multiplication
+        x, y, xm = self._create_floatdata()
+        m = xm.mask
+        a = arange(10, dtype=float)
+        a[-1] = masked
+        x *= a
+        xm *= a
+        assert_equal(x, y * a)
+        assert_equal(xm, y * a)
+        assert_equal(xm.mask, mask_or(m, a.mask))
+
+    def test_inplace_division_scalar_int(self):
+        # Test of inplace division
+        x, y, xm = self._create_intdata()
+        x = arange(10) * 2
+        xm = arange(10) * 2
+        xm[2] = masked
+        x //= 2
+        assert_equal(x, y)
+        xm //= 2
+        assert_equal(xm, y)
+
+    def test_inplace_division_scalar_float(self):
+        # Test of inplace division
+        x, y, xm = self._create_floatdata()
+        x /= 2.0
+        assert_equal(x, y / 2.0)
+        xm /= arange(10)
+        assert_equal(xm, ones((10,)))
+
+    def test_inplace_division_array_float(self):
+        # Test of inplace division
+        x, y, xm = self._create_floatdata()
+        m = xm.mask
+        a = arange(10, dtype=float)
+        a[-1] = masked
+        x /= a
+        xm /= a
+        assert_equal(x, y / a)
+        assert_equal(xm, y / a)
+        assert_equal(xm.mask, mask_or(mask_or(m, a.mask), (a == 0)))
+
+    def test_inplace_division_misc(self):
+
+        x = [1., 1., 1., -2., pi / 2., 4., 5., -10., 10., 1., 2., 3.]
+        y = [5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.]
+        m1 = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
+        m2 = [0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1]
+        xm = masked_array(x, mask=m1)
+        ym = masked_array(y, mask=m2)
+
+        z = xm / ym
+        assert_equal(z._mask, [1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1])
+        assert_equal(z._data,
+                     [1., 1., 1., -1., -pi / 2., 4., 5., 1., 1., 1., 2., 3.])
+
+        xm = xm.copy()
+        xm /= ym
+        assert_equal(xm._mask, [1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1])
+        assert_equal(z._data,
+                     [1., 1., 1., -1., -pi / 2., 4., 5., 1., 1., 1., 2., 3.])
+
+    def test_datafriendly_add(self):
+        # Test keeping data w/ (inplace) addition
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        # Test add w/ scalar
+        xx = x + 1
+        assert_equal(xx.data, [2, 3, 3])
+        assert_equal(xx.mask, [0, 0, 1])
+        # Test iadd w/ scalar
+        x += 1
+        assert_equal(x.data, [2, 3, 3])
+        assert_equal(x.mask, [0, 0, 1])
+        # Test add w/ array
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        xx = x + array([1, 2, 3], mask=[1, 0, 0])
+        assert_equal(xx.data, [1, 4, 3])
+        assert_equal(xx.mask, [1, 0, 1])
+        # Test iadd w/ array
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        x += array([1, 2, 3], mask=[1, 0, 0])
+        assert_equal(x.data, [1, 4, 3])
+        assert_equal(x.mask, [1, 0, 1])
+
+    def test_datafriendly_sub(self):
+        # Test keeping data w/ (inplace) subtraction
+        # Test sub w/ scalar
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        xx = x - 1
+        assert_equal(xx.data, [0, 1, 3])
+        assert_equal(xx.mask, [0, 0, 1])
+        # Test isub w/ scalar
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        x -= 1
+        assert_equal(x.data, [0, 1, 3])
+        assert_equal(x.mask, [0, 0, 1])
+        # Test sub w/ array
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        xx = x - array([1, 2, 3], mask=[1, 0, 0])
+        assert_equal(xx.data, [1, 0, 3])
+        assert_equal(xx.mask, [1, 0, 1])
+        # Test isub w/ array
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        x -= array([1, 2, 3], mask=[1, 0, 0])
+        assert_equal(x.data, [1, 0, 3])
+        assert_equal(x.mask, [1, 0, 1])
+
+    def test_datafriendly_mul(self):
+        # Test keeping data w/ (inplace) multiplication
+        # Test mul w/ scalar
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        xx = x * 2
+        assert_equal(xx.data, [2, 4, 3])
+        assert_equal(xx.mask, [0, 0, 1])
+        # Test imul w/ scalar
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        x *= 2
+        assert_equal(x.data, [2, 4, 3])
+        assert_equal(x.mask, [0, 0, 1])
+        # Test mul w/ array
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        xx = x * array([10, 20, 30], mask=[1, 0, 0])
+        assert_equal(xx.data, [1, 40, 3])
+        assert_equal(xx.mask, [1, 0, 1])
+        # Test imul w/ array
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        x *= array([10, 20, 30], mask=[1, 0, 0])
+        assert_equal(x.data, [1, 40, 3])
+        assert_equal(x.mask, [1, 0, 1])
+
+    def test_datafriendly_div(self):
+        # Test keeping data w/ (inplace) division
+        # Test div on scalar
+        x = array([1, 2, 3], mask=[0, 0, 1])
+        xx = x / 2.
+        assert_equal(xx.data, [1 / 2., 2 / 2., 3])
+        assert_equal(xx.mask, [0, 0, 1])
+        # Test idiv on scalar
+        x = array([1., 2., 3.], mask=[0, 0, 1])
+        x /= 2.
+        assert_equal(x.data, [1 / 2., 2 / 2., 3])
+        assert_equal(x.mask, [0, 0, 1])
+        # Test div on array
+        x = array([1., 2., 3.], mask=[0, 0, 1])
+        xx = x / array([10., 20., 30.], mask=[1, 0, 0])
+        assert_equal(xx.data, [1., 2. / 20., 3.])
+        assert_equal(xx.mask, [1, 0, 1])
+        # Test idiv on array
+        x = array([1., 2., 3.], mask=[0, 0, 1])
+        x /= array([10., 20., 30.], mask=[1, 0, 0])
+        assert_equal(x.data, [1., 2 / 20., 3.])
+        assert_equal(x.mask, [1, 0, 1])
+
+    def test_datafriendly_pow(self):
+        # Test keeping data w/ (inplace) power
+        # Test pow on scalar
+        x = array([1., 2., 3.], mask=[0, 0, 1])
+        xx = x ** 2.5
+        assert_equal(xx.data, [1., 2. ** 2.5, 3.])
+        assert_equal(xx.mask, [0, 0, 1])
+        # Test ipow on scalar
+        x **= 2.5
+        assert_equal(x.data, [1., 2. ** 2.5, 3])
+        assert_equal(x.mask, [0, 0, 1])
+
+    def test_datafriendly_add_arrays(self):
+        a = array([[1, 1], [3, 3]])
+        b = array([1, 1], mask=[0, 0])
+        a += b
+        assert_equal(a, [[2, 2], [4, 4]])
+        if a.mask is not nomask:
+            assert_equal(a.mask, [[0, 0], [0, 0]])
+
+        a = array([[1, 1], [3, 3]])
+        b = array([1, 1], mask=[0, 1])
+        a += b
+        assert_equal(a, [[2, 2], [4, 4]])
+        assert_equal(a.mask, [[0, 1], [0, 1]])
+
+    def test_datafriendly_sub_arrays(self):
+        a = array([[1, 1], [3, 3]])
+        b = array([1, 1], mask=[0, 0])
+        a -= b
+        assert_equal(a, [[0, 0], [2, 2]])
+        if a.mask is not nomask:
+            assert_equal(a.mask, [[0, 0], [0, 0]])
+
+        a = array([[1, 1], [3, 3]])
+        b = array([1, 1], mask=[0, 1])
+        a -= b
+        assert_equal(a, [[0, 0], [2, 2]])
+        assert_equal(a.mask, [[0, 1], [0, 1]])
+
+    def test_datafriendly_mul_arrays(self):
+        a = array([[1, 1], [3, 3]])
+        b = array([1, 1], mask=[0, 0])
+        a *= b
+        assert_equal(a, [[1, 1], [3, 3]])
+        if a.mask is not nomask:
+            assert_equal(a.mask, [[0, 0], [0, 0]])
+
+        a = array([[1, 1], [3, 3]])
+        b = array([1, 1], mask=[0, 1])
+        a *= b
+        assert_equal(a, [[1, 1], [3, 3]])
+        assert_equal(a.mask, [[0, 1], [0, 1]])
+
+    def test_inplace_addition_scalar_type(self):
+        # Test of inplace additions
+        othertypes, uint8data = self._create_otherdata()
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                xm[2] = masked
+                x += t(1)
+                assert_equal(x, y + t(1))
+                xm += t(1)
+                assert_equal(xm, y + t(1))
+
+    def test_inplace_addition_array_type(self):
+        # Test of inplace additions
+        othertypes, uint8data = self._create_otherdata()
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                m = xm.mask
+                a = arange(10, dtype=t)
+                a[-1] = masked
+                x += a
+                xm += a
+                assert_equal(x, y + a)
+                assert_equal(xm, y + a)
+                assert_equal(xm.mask, mask_or(m, a.mask))
+
+    def test_inplace_subtraction_scalar_type(self):
+        # Test of inplace subtractions
+        othertypes, uint8data = self._create_otherdata()
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                x -= t(1)
+                assert_equal(x, y - t(1))
+                xm -= t(1)
+                assert_equal(xm, y - t(1))
+
+    def test_inplace_subtraction_array_type(self):
+        # Test of inplace subtractions
+        othertypes, uint8data = self._create_otherdata()
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                m = xm.mask
+                a = arange(10, dtype=t)
+                a[-1] = masked
+                x -= a
+                xm -= a
+                assert_equal(x, y - a)
+                assert_equal(xm, y - a)
+                assert_equal(xm.mask, mask_or(m, a.mask))
+
+    def test_inplace_multiplication_scalar_type(self):
+        # Test of inplace multiplication
+        othertypes, uint8data = self._create_otherdata()
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                x *= t(2)
+                assert_equal(x, y * t(2))
+                xm *= t(2)
+                assert_equal(xm, y * t(2))
+
+    def test_inplace_multiplication_array_type(self):
+        # Test of inplace multiplication
+        othertypes, uint8data = self._create_otherdata()
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                m = xm.mask
+                a = arange(10, dtype=t)
+                a[-1] = masked
+                x *= a
+                xm *= a
+                assert_equal(x, y * a)
+                assert_equal(xm, y * a)
+                assert_equal(xm.mask, mask_or(m, a.mask))
+
+    def test_inplace_floor_division_scalar_type(self):
+        # Test of inplace division
+        # Check for TypeError in case of unsupported types
+        othertypes, uint8data = self._create_otherdata()
+        unsupported = {np.dtype(t).type for t in np.typecodes["Complex"]}
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                x = arange(10, dtype=t) * t(2)
+                xm = arange(10, dtype=t) * t(2)
+                xm[2] = masked
+                try:
+                    x //= t(2)
+                    xm //= t(2)
+                    assert_equal(x, y)
+                    assert_equal(xm, y)
+                except TypeError:
+                    msg = f"Supported type {t} throwing TypeError"
+                    assert t in unsupported, msg
+
+    def test_inplace_floor_division_array_type(self):
+        # Test of inplace division
+        # Check for TypeError in case of unsupported types
+        othertypes, uint8data = self._create_otherdata()
+        unsupported = {np.dtype(t).type for t in np.typecodes["Complex"]}
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                m = xm.mask
+                a = arange(10, dtype=t)
+                a[-1] = masked
+                try:
+                    x //= a
+                    xm //= a
+                    assert_equal(x, y // a)
+                    assert_equal(xm, y // a)
+                    assert_equal(
+                        xm.mask,
+                        mask_or(mask_or(m, a.mask), (a == t(0)))
+                    )
+                except TypeError:
+                    msg = f"Supported type {t} throwing TypeError"
+                    assert t in unsupported, msg
+
+    def test_inplace_division_scalar_type(self):
+        # Test of inplace division
+        othertypes, uint8data = self._create_otherdata()
+        with warnings.catch_warnings():
+            warnings.simplefilter('error', DeprecationWarning)
+            for t in othertypes:
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                x = arange(10, dtype=t) * t(2)
+                xm = arange(10, dtype=t) * t(2)
+                xm[2] = masked
+                nwarns = 0
+
+                # May get a DeprecationWarning or a TypeError.
+                #
+                # This is a consequence of the fact that this is true divide
+                # and will require casting to float for calculation and
+                # casting back to the original type. This will only be raised
+                # with integers. Whether it is an error or warning is only
+                # dependent on how stringent the casting rules are.
+                #
+                # Will handle the same way.
+                try:
+                    x /= t(2)
+                    assert_equal(x, y)
+                except (DeprecationWarning, TypeError):
+                    nwarns += 1
+                try:
+                    xm /= t(2)
+                    assert_equal(xm, y)
+                except (DeprecationWarning, TypeError):
+                    nwarns += 1
+
+                if issubclass(t, np.integer):
+                    assert_equal(nwarns, 2, f'Failed on type={t}.')
+                else:
+                    assert_equal(nwarns, 0, f'Failed on type={t}.')
+
+    def test_inplace_division_array_type(self):
+        # Test of inplace division
+        othertypes, uint8data = self._create_otherdata()
+        with warnings.catch_warnings():
+            warnings.simplefilter('error', DeprecationWarning)
+            for t in othertypes:
+                x, y, xm = (_.astype(t) for _ in uint8data)
+                m = xm.mask
+                a = arange(10, dtype=t)
+                a[-1] = masked
+                nwarns = 0
+
+                # May get a DeprecationWarning or a TypeError.
+                #
+                # This is a consequence of the fact that this is true divide
+                # and will require casting to float for calculation and
+                # casting back to the original type. This will only be raised
+                # with integers. Whether it is an error or warning is only
+                # dependent on how stringent the casting rules are.
+                #
+                # Will handle the same way.
+                try:
+                    x /= a
+                    assert_equal(x, y / a)
+                except (DeprecationWarning, TypeError):
+                    nwarns += 1
+                try:
+                    xm /= a
+                    assert_equal(xm, y / a)
+                    assert_equal(
+                        xm.mask,
+                        mask_or(mask_or(m, a.mask), (a == t(0)))
+                    )
+                except (DeprecationWarning, TypeError):
+                    nwarns += 1
+
+                if issubclass(t, np.integer):
+                    assert_equal(nwarns, 2, f'Failed on type={t}.')
+                else:
+                    assert_equal(nwarns, 0, f'Failed on type={t}.')
+
+    def test_inplace_pow_type(self):
+        # Test keeping data w/ (inplace) power
+        othertypes = self._create_otherdata()[0]
+        for t in othertypes:
+            with warnings.catch_warnings():
+                warnings.filterwarnings("error")
+                # Test pow on scalar
+                x = array([1, 2, 3], mask=[0, 0, 1], dtype=t)
+                xx = x ** t(2)
+                xx_r = array([1, 2 ** 2, 3], mask=[0, 0, 1], dtype=t)
+                assert_equal(xx.data, xx_r.data)
+                assert_equal(xx.mask, xx_r.mask)
+                # Test ipow on scalar
+                x **= t(2)
+                assert_equal(x.data, xx_r.data)
+                assert_equal(x.mask, xx_r.mask)
+
+
+class TestMaskedArrayMethods:
+    # Test class for miscellaneous MaskedArrays methods.
+    def _create_data(self):
+        # Base data definition.
+        x = np.array([8.375, 7.545, 8.828, 8.5, 1.757, 5.928,
+                      8.43, 7.78, 9.865, 5.878, 8.979, 4.732,
+                      3.012, 6.022, 5.095, 3.116, 5.238, 3.957,
+                      6.04, 9.63, 7.712, 3.382, 4.489, 6.479,
+                      7.189, 9.645, 5.395, 4.961, 9.894, 2.893,
+                      7.357, 9.828, 6.272, 3.758, 6.693, 0.993])
+        X = x.reshape(6, 6)
+        XX = x.reshape(3, 2, 2, 3)
+
+        m = np.array([0, 1, 0, 1, 0, 0,
+                     1, 0, 1, 1, 0, 1,
+                     0, 0, 0, 1, 0, 1,
+                     0, 0, 0, 1, 1, 1,
+                     1, 0, 0, 1, 0, 0,
+                     0, 0, 1, 0, 1, 0])
+        mx = array(data=x, mask=m)
+        mX = array(data=X, mask=m.reshape(X.shape))
+        mXX = array(data=XX, mask=m.reshape(XX.shape))
+
+        m2 = np.array([1, 1, 0, 1, 0, 0,
+                      1, 1, 1, 1, 0, 1,
+                      0, 0, 1, 1, 0, 1,
+                      0, 0, 0, 1, 1, 1,
+                      1, 0, 0, 1, 1, 0,
+                      0, 0, 1, 0, 1, 1])
+        m2x = array(data=x, mask=m2)
+        m2X = array(data=X, mask=m2.reshape(X.shape))
+        m2XX = array(data=XX, mask=m2.reshape(XX.shape))
+        return x, X, XX, m, mx, mX, mXX, m2x, m2X, m2XX
+
+    def test_generic_methods(self):
+        # Tests some MaskedArray methods.
+        a = array([1, 3, 2])
+        assert_equal(a.any(), a._data.any())
+        assert_equal(a.all(), a._data.all())
+        assert_equal(a.argmax(), a._data.argmax())
+        assert_equal(a.argmin(), a._data.argmin())
+        assert_equal(a.choose(0, 1, 2, 3, 4), a._data.choose(0, 1, 2, 3, 4))
+        assert_equal(a.compress([1, 0, 1]), a._data.compress([1, 0, 1]))
+        assert_equal(a.conj(), a._data.conj())
+        assert_equal(a.conjugate(), a._data.conjugate())
+
+        m = array([[1, 2], [3, 4]])
+        assert_equal(m.diagonal(), m._data.diagonal())
+        assert_equal(a.sum(), a._data.sum())
+        assert_equal(a.take([1, 2]), a._data.take([1, 2]))
+        assert_equal(m.transpose(), m._data.transpose())
+
+    def test_allclose(self):
+        # Tests allclose on arrays
+        a = np.random.rand(10)
+        b = a + np.random.rand(10) * 1e-8
+        assert_(allclose(a, b))
+        # Test allclose w/ infs
+        a[0] = np.inf
+        assert_(not allclose(a, b))
+        b[0] = np.inf
+        assert_(allclose(a, b))
+        # Test allclose w/ masked
+        a = masked_array(a)
+        a[-1] = masked
+        assert_(allclose(a, b, masked_equal=True))
+        assert_(not allclose(a, b, masked_equal=False))
+        # Test comparison w/ scalar
+        a *= 1e-8
+        a[0] = 0
+        assert_(allclose(a, 0, masked_equal=True))
+
+        # Test that the function works for MIN_INT integer typed arrays
+        a = masked_array([np.iinfo(np.int_).min], dtype=np.int_)
+        assert_(allclose(a, a))
+
+    def test_allclose_timedelta(self):
+        # Allclose currently works for timedelta64 as long as `atol` is
+        # an integer or also a timedelta64
+        a = np.array([[1, 2, 3, 4]], dtype="m8[ns]")
+        assert allclose(a, a, atol=0)
+        assert allclose(a, a, atol=np.timedelta64(1, "ns"))
+
+    def test_allany(self):
+        # Checks the any/all methods/functions.
+        x = np.array([[0.13, 0.26, 0.90],
+                      [0.28, 0.33, 0.63],
+                      [0.31, 0.87, 0.70]])
+        m = np.array([[True, False, False],
+                      [False, False, False],
+                      [True, True, False]], dtype=np.bool)
+        mx = masked_array(x, mask=m)
+        mxbig = (mx > 0.5)
+        mxsmall = (mx < 0.5)
+
+        assert_(not mxbig.all())
+        assert_(mxbig.any())
+        assert_equal(mxbig.all(0), [False, False, True])
+        assert_equal(mxbig.all(1), [False, False, True])
+        assert_equal(mxbig.any(0), [False, False, True])
+        assert_equal(mxbig.any(1), [True, True, True])
+
+        assert_(not mxsmall.all())
+        assert_(mxsmall.any())
+        assert_equal(mxsmall.all(0), [True, True, False])
+        assert_equal(mxsmall.all(1), [False, False, False])
+        assert_equal(mxsmall.any(0), [True, True, False])
+        assert_equal(mxsmall.any(1), [True, True, False])
+
+    def test_allany_oddities(self):
+        # Some fun with all and any
+        store = empty((), dtype=bool)
+        full = array([1, 2, 3], mask=True)
+
+        assert_(full.all() is masked)
+        full.all(out=store)
+        assert_(store)
+        assert_(store._mask, True)
+        assert_(store is not masked)
+
+        store = empty((), dtype=bool)
+        assert_(full.any() is masked)
+        full.any(out=store)
+        assert_(not store)
+        assert_(store._mask, True)
+        assert_(store is not masked)
+
+    def test_argmax_argmin(self):
+        # Tests argmin & argmax on MaskedArrays.
+        _, _, _, _, mx, mX, _, m2x, m2X, _ = self._create_data()
+
+        assert_equal(mx.argmin(), 35)
+        assert_equal(mX.argmin(), 35)
+        assert_equal(m2x.argmin(), 4)
+        assert_equal(m2X.argmin(), 4)
+        assert_equal(mx.argmax(), 28)
+        assert_equal(mX.argmax(), 28)
+        assert_equal(m2x.argmax(), 31)
+        assert_equal(m2X.argmax(), 31)
+
+        assert_equal(mX.argmin(0), [2, 2, 2, 5, 0, 5])
+        assert_equal(m2X.argmin(0), [2, 2, 4, 5, 0, 4])
+        assert_equal(mX.argmax(0), [0, 5, 0, 5, 4, 0])
+        assert_equal(m2X.argmax(0), [5, 5, 0, 5, 1, 0])
+
+        assert_equal(mX.argmin(1), [4, 1, 0, 0, 5, 5, ])
+        assert_equal(m2X.argmin(1), [4, 4, 0, 0, 5, 3])
+        assert_equal(mX.argmax(1), [2, 4, 1, 1, 4, 1])
+        assert_equal(m2X.argmax(1), [2, 4, 1, 1, 1, 1])
+
+    def test_clip(self):
+        # Tests clip on MaskedArrays.
+        x = np.array([8.375, 7.545, 8.828, 8.5, 1.757, 5.928,
+                      8.43, 7.78, 9.865, 5.878, 8.979, 4.732,
+                      3.012, 6.022, 5.095, 3.116, 5.238, 3.957,
+                      6.04, 9.63, 7.712, 3.382, 4.489, 6.479,
+                      7.189, 9.645, 5.395, 4.961, 9.894, 2.893,
+                      7.357, 9.828, 6.272, 3.758, 6.693, 0.993])
+        m = np.array([0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1,
+                      0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1,
+                      1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0])
+        mx = array(x, mask=m)
+        clipped = mx.clip(2, 8)
+        assert_equal(clipped.mask, mx.mask)
+        assert_equal(clipped._data, x.clip(2, 8))
+        assert_equal(clipped._data, mx._data.clip(2, 8))
+
+    def test_clip_out(self):
+        # gh-14140
+        a = np.arange(10)
+        m = np.ma.MaskedArray(a, mask=[0, 1] * 5)
+        m.clip(0, 5, out=m)
+        assert_equal(m.mask, [0, 1] * 5)
+
+    def test_compress(self):
+        # test compress
+        a = masked_array([1., 2., 3., 4., 5.], fill_value=9999)
+        condition = (a > 1.5) & (a < 3.5)
+        assert_equal(a.compress(condition), [2., 3.])
+
+        a[[2, 3]] = masked
+        b = a.compress(condition)
+        assert_equal(b._data, [2., 3.])
+        assert_equal(b._mask, [0, 1])
+        assert_equal(b.fill_value, 9999)
+        assert_equal(b, a[condition])
+
+        condition = (a < 4.)
+        b = a.compress(condition)
+        assert_equal(b._data, [1., 2., 3.])
+        assert_equal(b._mask, [0, 0, 1])
+        assert_equal(b.fill_value, 9999)
+        assert_equal(b, a[condition])
+
+        a = masked_array([[10, 20, 30], [40, 50, 60]],
+                         mask=[[0, 0, 1], [1, 0, 0]])
+        b = a.compress(a.ravel() >= 22)
+        assert_equal(b._data, [30, 40, 50, 60])
+        assert_equal(b._mask, [1, 1, 0, 0])
+
+        x = np.array([3, 1, 2])
+        b = a.compress(x >= 2, axis=1)
+        assert_equal(b._data, [[10, 30], [40, 60]])
+        assert_equal(b._mask, [[0, 1], [1, 0]])
+
+    def test_compressed(self):
+        # Tests compressed
+        a = array([1, 2, 3, 4], mask=[0, 0, 0, 0])
+        b = a.compressed()
+        assert_equal(b, a)
+        a[0] = masked
+        b = a.compressed()
+        assert_equal(b, [2, 3, 4])
+
+    def test_empty(self):
+        # Tests empty/like
+        datatype = [('a', int), ('b', float), ('c', '|S8')]
+        a = masked_array([(1, 1.1, '1.1'), (2, 2.2, '2.2'), (3, 3.3, '3.3')],
+                         dtype=datatype)
+        assert_equal(len(a.fill_value.item()), len(datatype))
+
+        b = empty_like(a)
+        assert_equal(b.shape, a.shape)
+        assert_equal(b.fill_value, a.fill_value)
+
+        b = empty(len(a), dtype=datatype)
+        assert_equal(b.shape, a.shape)
+        assert_equal(b.fill_value, a.fill_value)
+
+        # check empty_like mask handling
+        a = masked_array([1, 2, 3], mask=[False, True, False])
+        b = empty_like(a)
+        assert_(not np.may_share_memory(a.mask, b.mask))
+        b = a.view(masked_array)
+        assert_(np.may_share_memory(a.mask, b.mask))
+
+    def test_zeros(self):
+        # Tests zeros/like
+        datatype = [('a', int), ('b', float), ('c', '|S8')]
+        a = masked_array([(1, 1.1, '1.1'), (2, 2.2, '2.2'), (3, 3.3, '3.3')],
+                         dtype=datatype)
+        assert_equal(len(a.fill_value.item()), len(datatype))
+
+        b = zeros(len(a), dtype=datatype)
+        assert_equal(b.shape, a.shape)
+        assert_equal(b.fill_value, a.fill_value)
+
+        b = zeros_like(a)
+        assert_equal(b.shape, a.shape)
+        assert_equal(b.fill_value, a.fill_value)
+
+        # check zeros_like mask handling
+        a = masked_array([1, 2, 3], mask=[False, True, False])
+        b = zeros_like(a)
+        assert_(not np.may_share_memory(a.mask, b.mask))
+        b = a.view()
+        assert_(np.may_share_memory(a.mask, b.mask))
+
+    def test_ones(self):
+        # Tests ones/like
+        datatype = [('a', int), ('b', float), ('c', '|S8')]
+        a = masked_array([(1, 1.1, '1.1'), (2, 2.2, '2.2'), (3, 3.3, '3.3')],
+                         dtype=datatype)
+        assert_equal(len(a.fill_value.item()), len(datatype))
+
+        b = ones(len(a), dtype=datatype)
+        assert_equal(b.shape, a.shape)
+        assert_equal(b.fill_value, a.fill_value)
+
+        b = ones_like(a)
+        assert_equal(b.shape, a.shape)
+        assert_equal(b.fill_value, a.fill_value)
+
+        # check ones_like mask handling
+        a = masked_array([1, 2, 3], mask=[False, True, False])
+        b = ones_like(a)
+        assert_(not np.may_share_memory(a.mask, b.mask))
+        b = a.view()
+        assert_(np.may_share_memory(a.mask, b.mask))
+
+    @pytest.mark.filterwarnings(WARNING_MARK_SPEC)
+    def test_put(self):
+        # Tests put.
+        d = arange(5)
+        n = [0, 0, 0, 1, 1]
+        m = make_mask(n)
+        x = array(d, mask=m)
+        assert_(x[3] is masked)
+        assert_(x[4] is masked)
+        x[[1, 4]] = [10, 40]
+        assert_(x[3] is masked)
+        assert_(x[4] is not masked)
+        assert_equal(x, [0, 10, 2, -1, 40])
+
+        x = masked_array(arange(10), mask=[1, 0, 0, 0, 0] * 2)
+        i = [0, 2, 4, 6]
+        x.put(i, [6, 4, 2, 0])
+        assert_equal(x, asarray([6, 1, 4, 3, 2, 5, 0, 7, 8, 9, ]))
+        assert_equal(x.mask, [0, 0, 0, 0, 0, 1, 0, 0, 0, 0])
+        x.put(i, masked_array([0, 2, 4, 6], [1, 0, 1, 0]))
+        assert_array_equal(x, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ])
+        assert_equal(x.mask, [1, 0, 0, 0, 1, 1, 0, 0, 0, 0])
+
+        x = masked_array(arange(10), mask=[1, 0, 0, 0, 0] * 2)
+        put(x, i, [6, 4, 2, 0])
+        assert_equal(x, asarray([6, 1, 4, 3, 2, 5, 0, 7, 8, 9, ]))
+        assert_equal(x.mask, [0, 0, 0, 0, 0, 1, 0, 0, 0, 0])
+        put(x, i, masked_array([0, 2, 4, 6], [1, 0, 1, 0]))
+        assert_array_equal(x, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, ])
+        assert_equal(x.mask, [1, 0, 0, 0, 1, 1, 0, 0, 0, 0])
+
+    def test_put_nomask(self):
+        # GitHub issue 6425
+        x = zeros(10)
+        z = array([3., -1.], mask=[False, True])
+
+        x.put([1, 2], z)
+        assert_(x[0] is not masked)
+        assert_equal(x[0], 0)
+        assert_(x[1] is not masked)
+        assert_equal(x[1], 3)
+        assert_(x[2] is masked)
+        assert_(x[3] is not masked)
+        assert_equal(x[3], 0)
+
+    def test_put_hardmask(self):
+        # Tests put on hardmask
+        d = arange(5)
+        n = [0, 0, 0, 1, 1]
+        m = make_mask(n)
+        xh = array(d + 1, mask=m, hard_mask=True, copy=True)
+        xh.put([4, 2, 0, 1, 3], [1, 2, 3, 4, 5])
+        assert_equal(xh._data, [3, 4, 2, 4, 5])
+
+    def test_putmask(self):
+        x = arange(6) + 1
+        mx = array(x, mask=[0, 0, 0, 1, 1, 1])
+        mask = [0, 0, 1, 0, 0, 1]
+        # w/o mask, w/o masked values
+        xx = x.copy()
+        putmask(xx, mask, 99)
+        assert_equal(xx, [1, 2, 99, 4, 5, 99])
+        # w/ mask, w/o masked values
+        mxx = mx.copy()
+        putmask(mxx, mask, 99)
+        assert_equal(mxx._data, [1, 2, 99, 4, 5, 99])
+        assert_equal(mxx._mask, [0, 0, 0, 1, 1, 0])
+        # w/o mask, w/ masked values
+        values = array([10, 20, 30, 40, 50, 60], mask=[1, 1, 1, 0, 0, 0])
+        xx = x.copy()
+        putmask(xx, mask, values)
+        assert_equal(xx._data, [1, 2, 30, 4, 5, 60])
+        assert_equal(xx._mask, [0, 0, 1, 0, 0, 0])
+        # w/ mask, w/ masked values
+        mxx = mx.copy()
+        putmask(mxx, mask, values)
+        assert_equal(mxx._data, [1, 2, 30, 4, 5, 60])
+        assert_equal(mxx._mask, [0, 0, 1, 1, 1, 0])
+        # w/ mask, w/ masked values + hardmask
+        mxx = mx.copy()
+        mxx.harden_mask()
+        putmask(mxx, mask, values)
+        assert_equal(mxx, [1, 2, 30, 4, 5, 60])
+
+    def test_ravel(self):
+        # Tests ravel
+        a = array([[1, 2, 3, 4, 5]], mask=[[0, 1, 0, 0, 0]])
+        aravel = a.ravel()
+        assert_equal(aravel._mask.shape, aravel.shape)
+        a = array([0, 0], mask=[1, 1])
+        aravel = a.ravel()
+        assert_equal(aravel._mask.shape, a.shape)
+        # Checks that small_mask is preserved
+        a = array([1, 2, 3, 4], mask=[0, 0, 0, 0], shrink=False)
+        assert_equal(a.ravel()._mask, [0, 0, 0, 0])
+        # Test that the fill_value is preserved
+        a.fill_value = -99
+        a.shape = (2, 2)
+        ar = a.ravel()
+        assert_equal(ar._mask, [0, 0, 0, 0])
+        assert_equal(ar._data, [1, 2, 3, 4])
+        assert_equal(ar.fill_value, -99)
+        # Test index ordering
+        assert_equal(a.ravel(order='C'), [1, 2, 3, 4])
+        assert_equal(a.ravel(order='F'), [1, 3, 2, 4])
+
+    @pytest.mark.parametrize("order", "AKCF")
+    @pytest.mark.parametrize("data_order", "CF")
+    def test_ravel_order(self, order, data_order):
+        # Ravelling must ravel mask and data in the same order always to avoid
+        # misaligning the two in the ravel result.
+        arr = np.ones((5, 10), order=data_order)
+        arr[0, :] = 0
+        mask = np.ones((10, 5), dtype=bool, order=data_order).T
+        mask[0, :] = False
+        x = array(arr, mask=mask)
+        assert x._data.flags.fnc != x._mask.flags.fnc
+        assert (x.filled(0) == 0).all()
+        raveled = x.ravel(order)
+        assert (raveled.filled(0) == 0).all()
+
+        # NOTE: Can be wrong if arr order is neither C nor F and `order="K"`
+        assert_array_equal(arr.ravel(order), x.ravel(order)._data)
+
+    def test_reshape(self):
+        # Tests reshape
+        x = arange(4)
+        x[0] = masked
+        y = x.reshape(2, 2)
+        assert_equal(y.shape, (2, 2,))
+        assert_equal(y._mask.shape, (2, 2,))
+        assert_equal(x.shape, (4,))
+        assert_equal(x._mask.shape, (4,))
+
+    def test_sort(self):
+        # Test sort
+        x = array([1, 4, 2, 3], mask=[0, 1, 0, 0], dtype=np.uint8)
+
+        sortedx = sort(x)
+        assert_equal(sortedx._data, [1, 2, 3, 4])
+        assert_equal(sortedx._mask, [0, 0, 0, 1])
+
+        sortedx = sort(x, endwith=False)
+        assert_equal(sortedx._data, [4, 1, 2, 3])
+        assert_equal(sortedx._mask, [1, 0, 0, 0])
+
+        x.sort()
+        assert_equal(x._data, [1, 2, 3, 4])
+        assert_equal(x._mask, [0, 0, 0, 1])
+
+        x = array([1, 4, 2, 3], mask=[0, 1, 0, 0], dtype=np.uint8)
+        x.sort(endwith=False)
+        assert_equal(x._data, [4, 1, 2, 3])
+        assert_equal(x._mask, [1, 0, 0, 0])
+
+        x = [1, 4, 2, 3]
+        sortedx = sort(x)
+        assert_(not isinstance(sorted, MaskedArray))
+
+        x = array([0, 1, -1, -2, 2], mask=nomask, dtype=np.int8)
+        sortedx = sort(x, endwith=False)
+        assert_equal(sortedx._data, [-2, -1, 0, 1, 2])
+        x = array([0, 1, -1, -2, 2], mask=[0, 1, 0, 0, 1], dtype=np.int8)
+        sortedx = sort(x, endwith=False)
+        assert_equal(sortedx._data, [1, 2, -2, -1, 0])
+        assert_equal(sortedx._mask, [1, 1, 0, 0, 0])
+
+        x = array([0, -1], dtype=np.int8)
+        sortedx = sort(x, kind="stable")
+        assert_equal(sortedx, array([-1, 0], dtype=np.int8))
+
+    def test_stable_sort(self):
+        x = array([1, 2, 3, 1, 2, 3], dtype=np.uint8)
+        expected = array([0, 3, 1, 4, 2, 5])
+        computed = argsort(x, kind='stable')
+        assert_equal(computed, expected)
+
+    def test_argsort_matches_sort(self):
+        x = array([1, 4, 2, 3], mask=[0, 1, 0, 0], dtype=np.uint8)
+
+        for kwargs in [{},
+                       {"endwith": True},
+                       {"endwith": False},
+                       {"fill_value": 2},
+                       {"fill_value": 2, "endwith": True},
+                       {"fill_value": 2, "endwith": False}]:
+            sortedx = sort(x, **kwargs)
+            argsortedx = x[argsort(x, **kwargs)]
+            assert_equal(sortedx._data, argsortedx._data)
+            assert_equal(sortedx._mask, argsortedx._mask)
+
+    def test_sort_2d(self):
+        # Check sort of 2D array.
+        # 2D array w/o mask
+        a = masked_array([[8, 4, 1], [2, 0, 9]])
+        a.sort(0)
+        assert_equal(a, [[2, 0, 1], [8, 4, 9]])
+        a = masked_array([[8, 4, 1], [2, 0, 9]])
+        a.sort(1)
+        assert_equal(a, [[1, 4, 8], [0, 2, 9]])
+        # 2D array w/mask
+        a = masked_array([[8, 4, 1], [2, 0, 9]], mask=[[1, 0, 0], [0, 0, 1]])
+        a.sort(0)
+        assert_equal(a, [[2, 0, 1], [8, 4, 9]])
+        assert_equal(a._mask, [[0, 0, 0], [1, 0, 1]])
+        a = masked_array([[8, 4, 1], [2, 0, 9]], mask=[[1, 0, 0], [0, 0, 1]])
+        a.sort(1)
+        assert_equal(a, [[1, 4, 8], [0, 2, 9]])
+        assert_equal(a._mask, [[0, 0, 1], [0, 0, 1]])
+        # 3D
+        a = masked_array([[[7, 8, 9], [4, 5, 6], [1, 2, 3]],
+                          [[1, 2, 3], [7, 8, 9], [4, 5, 6]],
+                          [[7, 8, 9], [1, 2, 3], [4, 5, 6]],
+                          [[4, 5, 6], [1, 2, 3], [7, 8, 9]]])
+        a[a % 4 == 0] = masked
+        am = a.copy()
+        an = a.filled(99)
+        am.sort(0)
+        an.sort(0)
+        assert_equal(am, an)
+        am = a.copy()
+        an = a.filled(99)
+        am.sort(1)
+        an.sort(1)
+        assert_equal(am, an)
+        am = a.copy()
+        an = a.filled(99)
+        am.sort(2)
+        an.sort(2)
+        assert_equal(am, an)
+
+    def test_sort_flexible(self):
+        # Test sort on structured dtype.
+        a = array(
+            data=[(3, 3), (3, 2), (2, 2), (2, 1), (1, 0), (1, 1), (1, 2)],
+            mask=[(0, 0), (0, 1), (0, 0), (0, 0), (1, 0), (0, 0), (0, 0)],
+            dtype=[('A', int), ('B', int)])
+        mask_last = array(
+            data=[(1, 1), (1, 2), (2, 1), (2, 2), (3, 3), (3, 2), (1, 0)],
+            mask=[(0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 1), (1, 0)],
+            dtype=[('A', int), ('B', int)])
+        mask_first = array(
+            data=[(1, 0), (1, 1), (1, 2), (2, 1), (2, 2), (3, 2), (3, 3)],
+            mask=[(1, 0), (0, 0), (0, 0), (0, 0), (0, 0), (0, 1), (0, 0)],
+            dtype=[('A', int), ('B', int)])
+
+        test = sort(a)
+        assert_equal(test, mask_last)
+        assert_equal(test.mask, mask_last.mask)
+
+        test = sort(a, endwith=False)
+        assert_equal(test, mask_first)
+        assert_equal(test.mask, mask_first.mask)
+
+        # Test sort on dtype with subarray (gh-8069)
+        # Just check that the sort does not error, structured array subarrays
+        # are treated as byte strings and that leads to differing behavior
+        # depending on endianness and `endwith`.
+        dt = np.dtype([('v', int, 2)])
+        a = a.view(dt)
+        test = sort(a)
+        test = sort(a, endwith=False)
+
+    def test_argsort(self):
+        # Test argsort
+        a = array([1, 5, 2, 4, 3], mask=[1, 0, 0, 1, 0])
+        assert_equal(np.argsort(a), argsort(a))
+
+    def test_squeeze(self):
+        # Check squeeze
+        data = masked_array([[1, 2, 3]])
+        assert_equal(data.squeeze(), [1, 2, 3])
+        data = masked_array([[1, 2, 3]], mask=[[1, 1, 1]])
+        assert_equal(data.squeeze(), [1, 2, 3])
+        assert_equal(data.squeeze()._mask, [1, 1, 1])
+
+        # normal ndarrays return a view
+        arr = np.array([[1]])
+        arr_sq = arr.squeeze()
+        assert_equal(arr_sq, 1)
+        arr_sq[...] = 2
+        assert_equal(arr[0, 0], 2)
+
+        # so maskedarrays should too
+        m_arr = masked_array([[1]], mask=True)
+        m_arr_sq = m_arr.squeeze()
+        assert_(m_arr_sq is not np.ma.masked)
+        assert_equal(m_arr_sq.mask, True)
+        m_arr_sq[...] = 2
+        assert_equal(m_arr[0, 0], 2)
+
+    def test_swapaxes(self):
+        # Tests swapaxes on MaskedArrays.
+        x = np.array([8.375, 7.545, 8.828, 8.5, 1.757, 5.928,
+                      8.43, 7.78, 9.865, 5.878, 8.979, 4.732,
+                      3.012, 6.022, 5.095, 3.116, 5.238, 3.957,
+                      6.04, 9.63, 7.712, 3.382, 4.489, 6.479,
+                      7.189, 9.645, 5.395, 4.961, 9.894, 2.893,
+                      7.357, 9.828, 6.272, 3.758, 6.693, 0.993])
+        m = np.array([0, 1, 0, 1, 0, 0,
+                      1, 0, 1, 1, 0, 1,
+                      0, 0, 0, 1, 0, 1,
+                      0, 0, 0, 1, 1, 1,
+                      1, 0, 0, 1, 0, 0,
+                      0, 0, 1, 0, 1, 0])
+        mX = array(x, mask=m).reshape(6, 6)
+        mXX = mX.reshape(3, 2, 2, 3)
+
+        mXswapped = mX.swapaxes(0, 1)
+        assert_equal(mXswapped[-1], mX[:, -1])
+
+        mXXswapped = mXX.swapaxes(0, 2)
+        assert_equal(mXXswapped.shape, (2, 2, 3, 3))
+
+    def test_take(self):
+        # Tests take
+        x = masked_array([10, 20, 30, 40], [0, 1, 0, 1])
+        assert_equal(x.take([0, 0, 3]), masked_array([10, 10, 40], [0, 0, 1]))
+        assert_equal(x.take([0, 0, 3]), x[[0, 0, 3]])
+        assert_equal(x.take([[0, 1], [0, 1]]),
+                     masked_array([[10, 20], [10, 20]], [[0, 1], [0, 1]]))
+
+        # assert_equal crashes when passed np.ma.mask
+        assert_(x[1] is np.ma.masked)
+        assert_(x.take(1) is np.ma.masked)
+
+        x = array([[10, 20, 30], [40, 50, 60]], mask=[[0, 0, 1], [1, 0, 0, ]])
+        assert_equal(x.take([0, 2], axis=1),
+                     array([[10, 30], [40, 60]], mask=[[0, 1], [1, 0]]))
+        assert_equal(take(x, [0, 2], axis=1),
+                     array([[10, 30], [40, 60]], mask=[[0, 1], [1, 0]]))
+
+    def test_take_masked_indices(self):
+        # Test take w/ masked indices
+        a = np.array((40, 18, 37, 9, 22))
+        indices = np.arange(3)[None, :] + np.arange(5)[:, None]
+        mindices = array(indices, mask=(indices >= len(a)))
+        # No mask
+        test = take(a, mindices, mode='clip')
+        ctrl = array([[40, 18, 37],
+                      [18, 37, 9],
+                      [37, 9, 22],
+                      [9, 22, 22],
+                      [22, 22, 22]])
+        assert_equal(test, ctrl)
+        # Masked indices
+        test = take(a, mindices)
+        ctrl = array([[40, 18, 37],
+                      [18, 37, 9],
+                      [37, 9, 22],
+                      [9, 22, 40],
+                      [22, 40, 40]])
+        ctrl[3, 2] = ctrl[4, 1] = ctrl[4, 2] = masked
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, ctrl.mask)
+        # Masked input + masked indices
+        a = array((40, 18, 37, 9, 22), mask=(0, 1, 0, 0, 0))
+        test = take(a, mindices)
+        ctrl[0, 1] = ctrl[1, 0] = masked
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, ctrl.mask)
+
+    def test_tolist(self):
+        # Tests to list
+        # ... on 1D
+        x = array(np.arange(12))
+        x[[1, -2]] = masked
+        xlist = x.tolist()
+        assert_(xlist[1] is None)
+        assert_(xlist[-2] is None)
+        # ... on 2D
+        x.shape = (3, 4)
+        xlist = x.tolist()
+        ctrl = [[0, None, 2, 3], [4, 5, 6, 7], [8, 9, None, 11]]
+        assert_equal(xlist[0], [0, None, 2, 3])
+        assert_equal(xlist[1], [4, 5, 6, 7])
+        assert_equal(xlist[2], [8, 9, None, 11])
+        assert_equal(xlist, ctrl)
+        # ... on structured array w/ masked records
+        x = array(list(zip([1, 2, 3],
+                           [1.1, 2.2, 3.3],
+                           ['one', 'two', 'thr'])),
+                  dtype=[('a', int), ('b', float), ('c', '|S8')])
+        x[-1] = masked
+        assert_equal(x.tolist(),
+                     [(1, 1.1, b'one'),
+                      (2, 2.2, b'two'),
+                      (None, None, None)])
+        # ... on structured array w/ masked fields
+        a = array([(1, 2,), (3, 4)], mask=[(0, 1), (0, 0)],
+                  dtype=[('a', int), ('b', int)])
+        test = a.tolist()
+        assert_equal(test, [[1, None], [3, 4]])
+        # ... on mvoid
+        a = a[0]
+        test = a.tolist()
+        assert_equal(test, [1, None])
+
+    def test_tolist_specialcase(self):
+        # Test mvoid.tolist: make sure we return a standard Python object
+        a = array([(0, 1), (2, 3)], dtype=[('a', int), ('b', int)])
+        # w/o mask: each entry is a np.void whose elements are standard Python
+        for entry in a:
+            for item in entry.tolist():
+                assert_(not isinstance(item, np.generic))
+        # w/ mask: each entry is a ma.void whose elements should be
+        # standard Python
+        a.mask[0] = (0, 1)
+        for entry in a:
+            for item in entry.tolist():
+                assert_(not isinstance(item, np.generic))
+
+    def test_toflex(self):
+        # Test the conversion to records
+        data = arange(10)
+        record = data.toflex()
+        assert_equal(record['_data'], data._data)
+        assert_equal(record['_mask'], data._mask)
+
+        data[[0, 1, 2, -1]] = masked
+        record = data.toflex()
+        assert_equal(record['_data'], data._data)
+        assert_equal(record['_mask'], data._mask)
+
+        ndtype = [('i', int), ('s', '|S3'), ('f', float)]
+        data = array(list(zip(np.arange(10),
+                              'ABCDEFGHIJKLM',
+                              np.random.rand(10))),
+                     dtype=ndtype)
+        data[[0, 1, 2, -1]] = masked
+        record = data.toflex()
+        assert_equal(record['_data'], data._data)
+        assert_equal(record['_mask'], data._mask)
+
+        ndtype = np.dtype("int, (2,3)float, float")
+        data = array(list(zip(np.arange(10),
+                              np.random.rand(10),
+                              np.random.rand(10))),
+                     dtype=ndtype)
+        data[[0, 1, 2, -1]] = masked
+        record = data.toflex()
+        assert_equal_records(record['_data'], data._data)
+        assert_equal_records(record['_mask'], data._mask)
+
+    def test_fromflex(self):
+        # Test the reconstruction of a masked_array from a record
+        a = array([1, 2, 3])
+        test = fromflex(a.toflex())
+        assert_equal(test, a)
+        assert_equal(test.mask, a.mask)
+
+        a = array([1, 2, 3], mask=[0, 0, 1])
+        test = fromflex(a.toflex())
+        assert_equal(test, a)
+        assert_equal(test.mask, a.mask)
+
+        a = array([(1, 1.), (2, 2.), (3, 3.)], mask=[(1, 0), (0, 0), (0, 1)],
+                  dtype=[('A', int), ('B', float)])
+        test = fromflex(a.toflex())
+        assert_equal(test, a)
+        assert_equal(test.data, a.data)
+
+    def test_arraymethod(self):
+        # Test a _arraymethod w/ n argument
+        marray = masked_array([[1, 2, 3, 4, 5]], mask=[0, 0, 1, 0, 0])
+        control = masked_array([[1], [2], [3], [4], [5]],
+                               mask=[0, 0, 1, 0, 0])
+        assert_equal(marray.T, control)
+        assert_equal(marray.transpose(), control)
+
+        assert_equal(MaskedArray.cumsum(marray.T, 0), control.cumsum(0))
+
+    def test_arraymethod_0d(self):
+        # gh-9430
+        x = np.ma.array(42, mask=True)
+        assert_equal(x.T.mask, x.mask)
+        assert_equal(x.T.data, x.data)
+
+    def test_transpose_view(self):
+        x = np.ma.array([[1, 2, 3], [4, 5, 6]])
+        x[0, 1] = np.ma.masked
+        xt = x.T
+
+        xt[1, 0] = 10
+        xt[0, 1] = np.ma.masked
+
+        assert_equal(x.data, xt.T.data)
+        assert_equal(x.mask, xt.T.mask)
+
+    def test_diagonal_view(self):
+        x = np.ma.zeros((3, 3))
+        x[0, 0] = 10
+        x[1, 1] = np.ma.masked
+        x[2, 2] = 20
+        xd = x.diagonal()
+        x[1, 1] = 15
+        assert_equal(xd.mask, x.diagonal().mask)
+        assert_equal(xd.data, x.diagonal().data)
+
+
+class TestMaskedArrayMathMethods:
+    def _create_data(self):
+        # Base data definition.
+        x = np.array([8.375, 7.545, 8.828, 8.5, 1.757, 5.928,
+                      8.43, 7.78, 9.865, 5.878, 8.979, 4.732,
+                      3.012, 6.022, 5.095, 3.116, 5.238, 3.957,
+                      6.04, 9.63, 7.712, 3.382, 4.489, 6.479,
+                      7.189, 9.645, 5.395, 4.961, 9.894, 2.893,
+                      7.357, 9.828, 6.272, 3.758, 6.693, 0.993])
+        X = x.reshape(6, 6)
+        XX = x.reshape(3, 2, 2, 3)
+
+        m = np.array([0, 1, 0, 1, 0, 0,
+                     1, 0, 1, 1, 0, 1,
+                     0, 0, 0, 1, 0, 1,
+                     0, 0, 0, 1, 1, 1,
+                     1, 0, 0, 1, 0, 0,
+                     0, 0, 1, 0, 1, 0])
+        mx = array(data=x, mask=m)
+        mX = array(data=X, mask=m.reshape(X.shape))
+        mXX = array(data=XX, mask=m.reshape(XX.shape))
+
+        m2 = np.array([1, 1, 0, 1, 0, 0,
+                      1, 1, 1, 1, 0, 1,
+                      0, 0, 1, 1, 0, 1,
+                      0, 0, 0, 1, 1, 1,
+                      1, 0, 0, 1, 1, 0,
+                      0, 0, 1, 0, 1, 1])
+        m2x = array(data=x, mask=m2)
+        m2X = array(data=X, mask=m2.reshape(X.shape))
+        m2XX = array(data=XX, mask=m2.reshape(XX.shape))
+        return x, X, XX, m, mx, mX, mXX, m2x, m2X, m2XX
+
+    def test_cumsumprod(self):
+        # Tests cumsum & cumprod on MaskedArrays.
+        mX = self._create_data()[5]
+        mXcp = mX.cumsum(0)
+        assert_equal(mXcp._data, mX.filled(0).cumsum(0))
+        mXcp = mX.cumsum(1)
+        assert_equal(mXcp._data, mX.filled(0).cumsum(1))
+
+        mXcp = mX.cumprod(0)
+        assert_equal(mXcp._data, mX.filled(1).cumprod(0))
+        mXcp = mX.cumprod(1)
+        assert_equal(mXcp._data, mX.filled(1).cumprod(1))
+
+    def test_cumsumprod_with_output(self):
+        # Tests cumsum/cumprod w/ output
+        xm = array(np.random.uniform(0, 10, 12)).reshape(3, 4)
+        xm[:, 0] = xm[0] = xm[-1, -1] = masked
+
+        for funcname in ('cumsum', 'cumprod'):
+            npfunc = getattr(np, funcname)
+            xmmeth = getattr(xm, funcname)
+
+            # A ndarray as explicit input
+            output = np.empty((3, 4), dtype=float)
+            output.fill(-9999)
+            result = npfunc(xm, axis=0, out=output)
+            # ... the result should be the given output
+            assert_(result is output)
+            assert_equal(result, xmmeth(axis=0, out=output))
+
+            output = empty((3, 4), dtype=int)
+            result = xmmeth(axis=0, out=output)
+            assert_(result is output)
+
+    def test_ptp(self):
+        # Tests ptp on MaskedArrays.
+        _, X, _, m, mx, mX, _, _, _, _ = self._create_data()
+        (n, m) = X.shape
+        assert_equal(mx.ptp(), np.ptp(mx.compressed()))
+        rows = np.zeros(n, float)
+        cols = np.zeros(m, float)
+        for k in range(m):
+            cols[k] = np.ptp(mX[:, k].compressed())
+        for k in range(n):
+            rows[k] = np.ptp(mX[k].compressed())
+        assert_equal(mX.ptp(0), cols)
+        assert_equal(mX.ptp(1), rows)
+
+    def test_add_object(self):
+        x = masked_array(['a', 'b'], mask=[1, 0], dtype=object)
+        y = x + 'x'
+        assert_equal(y[1], 'bx')
+        assert_(y.mask[0])
+
+    def test_sum_object(self):
+        # Test sum on object dtype
+        a = masked_array([1, 2, 3], mask=[1, 0, 0], dtype=object)
+        assert_equal(a.sum(), 5)
+        a = masked_array([[1, 2, 3], [4, 5, 6]], dtype=object)
+        assert_equal(a.sum(axis=0), [5, 7, 9])
+
+    def test_prod_object(self):
+        # Test prod on object dtype
+        a = masked_array([1, 2, 3], mask=[1, 0, 0], dtype=object)
+        assert_equal(a.prod(), 2 * 3)
+        a = masked_array([[1, 2, 3], [4, 5, 6]], dtype=object)
+        assert_equal(a.prod(axis=0), [4, 10, 18])
+
+    def test_meananom_object(self):
+        # Test mean/anom on object dtype
+        a = masked_array([1, 2, 3], dtype=object)
+        assert_equal(a.mean(), 2)
+        assert_equal(a.anom(), [-1, 0, 1])
+
+    def test_anom_shape(self):
+        a = masked_array([1, 2, 3])
+        assert_equal(a.anom().shape, a.shape)
+        a.mask = True
+        assert_equal(a.anom().shape, a.shape)
+        assert_(np.ma.is_masked(a.anom()))
+
+    def test_anom(self):
+        a = masked_array(np.arange(1, 7).reshape(2, 3))
+        assert_almost_equal(a.anom(),
+                            [[-2.5, -1.5, -0.5], [0.5, 1.5, 2.5]])
+        assert_almost_equal(a.anom(axis=0),
+                            [[-1.5, -1.5, -1.5], [1.5, 1.5, 1.5]])
+        assert_almost_equal(a.anom(axis=1),
+                            [[-1., 0., 1.], [-1., 0., 1.]])
+        a.mask = [[0, 0, 1], [0, 1, 0]]
+        mval = -99
+        assert_almost_equal(a.anom().filled(mval),
+                            [[-2.25, -1.25, mval], [0.75, mval, 2.75]])
+        assert_almost_equal(a.anom(axis=0).filled(mval),
+                            [[-1.5, 0.0, mval], [1.5, mval, 0.0]])
+        assert_almost_equal(a.anom(axis=1).filled(mval),
+                            [[-0.5, 0.5, mval], [-1.0, mval, 1.0]])
+
+    def test_trace(self):
+        # Tests trace on MaskedArrays.
+        _, X, _, _, _, mX, _, _, _, _ = self._create_data()
+        mXdiag = mX.diagonal()
+        assert_equal(mX.trace(), mX.diagonal().compressed().sum())
+        assert_almost_equal(mX.trace(),
+                            X.trace() - sum(mXdiag.mask * X.diagonal(),
+                                            axis=0))
+        assert_equal(np.trace(mX), mX.trace())
+
+        # gh-5560
+        arr = np.arange(2 * 4 * 4).reshape(2, 4, 4)
+        m_arr = np.ma.masked_array(arr, False)
+        assert_equal(arr.trace(axis1=1, axis2=2), m_arr.trace(axis1=1, axis2=2))
+
+    def test_dot(self):
+        # Tests dot on MaskedArrays.
+        _, _, _, _, mx, mX, mXX, _, _, _ = self._create_data()
+        fx = mx.filled(0)
+        r = mx.dot(mx)
+        assert_almost_equal(r.filled(0), fx.dot(fx))
+        assert_(r.mask is nomask)
+
+        fX = mX.filled(0)
+        r = mX.dot(mX)
+        assert_almost_equal(r.filled(0), fX.dot(fX))
+        assert_(r.mask[1, 3])
+        r1 = empty_like(r)
+        mX.dot(mX, out=r1)
+        assert_almost_equal(r, r1)
+
+        mYY = mXX.swapaxes(-1, -2)
+        fXX, fYY = mXX.filled(0), mYY.filled(0)
+        r = mXX.dot(mYY)
+        assert_almost_equal(r.filled(0), fXX.dot(fYY))
+        r1 = empty_like(r)
+        mXX.dot(mYY, out=r1)
+        assert_almost_equal(r, r1)
+
+    def test_dot_shape_mismatch(self):
+        # regression test
+        x = masked_array([[1, 2], [3, 4]], mask=[[0, 1], [0, 0]])
+        y = masked_array([[1, 2], [3, 4]], mask=[[0, 1], [0, 0]])
+        z = masked_array([[0, 1], [3, 3]])
+        x.dot(y, out=z)
+        assert_almost_equal(z.filled(0), [[1, 0], [15, 16]])
+        assert_almost_equal(z.mask, [[0, 1], [0, 0]])
+
+    def test_varmean_nomask(self):
+        # gh-5769
+        foo = array([1, 2, 3, 4], dtype='f8')
+        bar = array([1, 2, 3, 4], dtype='f8')
+        assert_equal(type(foo.mean()), np.float64)
+        assert_equal(type(foo.var()), np.float64)
+        assert (foo.mean() == bar.mean()) is np.bool(True)
+
+        # check array type is preserved and out works
+        foo = array(np.arange(16).reshape((4, 4)), dtype='f8')
+        bar = empty(4, dtype='f4')
+        assert_equal(type(foo.mean(axis=1)), MaskedArray)
+        assert_equal(type(foo.var(axis=1)), MaskedArray)
+        assert_(foo.mean(axis=1, out=bar) is bar)
+        assert_(foo.var(axis=1, out=bar) is bar)
+
+    def test_varstd(self):
+        # Tests var & std on MaskedArrays.
+        _, X, XX, _, _, mX, mXX, _, _, _ = self._create_data()
+        assert_almost_equal(mX.var(axis=None), mX.compressed().var())
+        assert_almost_equal(mX.std(axis=None), mX.compressed().std())
+        assert_almost_equal(mX.std(axis=None, ddof=1),
+                            mX.compressed().std(ddof=1))
+        assert_almost_equal(mX.var(axis=None, ddof=1),
+                            mX.compressed().var(ddof=1))
+        assert_equal(mXX.var(axis=3).shape, XX.var(axis=3).shape)
+        assert_equal(mX.var().shape, X.var().shape)
+        (mXvar0, mXvar1) = (mX.var(axis=0), mX.var(axis=1))
+        assert_almost_equal(mX.var(axis=None, ddof=2),
+                            mX.compressed().var(ddof=2))
+        assert_almost_equal(mX.std(axis=None, ddof=2),
+                            mX.compressed().std(ddof=2))
+        for k in range(6):
+            assert_almost_equal(mXvar1[k], mX[k].compressed().var())
+            assert_almost_equal(mXvar0[k], mX[:, k].compressed().var())
+            assert_almost_equal(np.sqrt(mXvar0[k]),
+                                mX[:, k].compressed().std())
+
+    @pytest.mark.filterwarnings(WARNING_MARK_SPEC)
+    def test_varstd_specialcases(self):
+        # Test a special case for var
+        nout = np.array(-1, dtype=float)
+        mout = array(-1, dtype=float)
+
+        x = array(arange(10), mask=True)
+        for methodname in ('var', 'std'):
+            method = getattr(x, methodname)
+            assert_(method() is masked)
+            assert_(method(0) is masked)
+            assert_(method(-1) is masked)
+            # Using a masked array as explicit output
+            method(out=mout)
+            assert_(mout is not masked)
+            assert_equal(mout.mask, True)
+            # Using a ndarray as explicit output
+            method(out=nout)
+            assert_(np.isnan(nout))
+
+        x = array(arange(10), mask=True)
+        x[-1] = 9
+        for methodname in ('var', 'std'):
+            method = getattr(x, methodname)
+            assert_(method(ddof=1) is masked)
+            assert_(method(0, ddof=1) is masked)
+            assert_(method(-1, ddof=1) is masked)
+            # Using a masked array as explicit output
+            method(out=mout, ddof=1)
+            assert_(mout is not masked)
+            assert_equal(mout.mask, True)
+            # Using a ndarray as explicit output
+            method(out=nout, ddof=1)
+            assert_(np.isnan(nout))
+
+    def test_varstd_ddof(self):
+        a = array([[1, 1, 0], [1, 1, 0]], mask=[[0, 0, 1], [0, 0, 1]])
+        test = a.std(axis=0, ddof=0)
+        assert_equal(test.filled(0), [0, 0, 0])
+        assert_equal(test.mask, [0, 0, 1])
+        test = a.std(axis=0, ddof=1)
+        assert_equal(test.filled(0), [0, 0, 0])
+        assert_equal(test.mask, [0, 0, 1])
+        test = a.std(axis=0, ddof=2)
+        assert_equal(test.filled(0), [0, 0, 0])
+        assert_equal(test.mask, [1, 1, 1])
+
+    def test_diag(self):
+        # Test diag
+        x = arange(9).reshape((3, 3))
+        x[1, 1] = masked
+        out = np.diag(x)
+        assert_equal(out, [0, 4, 8])
+        out = diag(x)
+        assert_equal(out, [0, 4, 8])
+        assert_equal(out.mask, [0, 1, 0])
+        out = diag(out)
+        control = array([[0, 0, 0], [0, 4, 0], [0, 0, 8]],
+                        mask=[[0, 0, 0], [0, 1, 0], [0, 0, 0]])
+        assert_equal(out, control)
+
+    def test_axis_methods_nomask(self):
+        # Test the combination nomask & methods w/ axis
+        a = array([[1, 2, 3], [4, 5, 6]])
+
+        assert_equal(a.sum(0), [5, 7, 9])
+        assert_equal(a.sum(-1), [6, 15])
+        assert_equal(a.sum(1), [6, 15])
+
+        assert_equal(a.prod(0), [4, 10, 18])
+        assert_equal(a.prod(-1), [6, 120])
+        assert_equal(a.prod(1), [6, 120])
+
+        assert_equal(a.min(0), [1, 2, 3])
+        assert_equal(a.min(-1), [1, 4])
+        assert_equal(a.min(1), [1, 4])
+
+        assert_equal(a.max(0), [4, 5, 6])
+        assert_equal(a.max(-1), [3, 6])
+        assert_equal(a.max(1), [3, 6])
+
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    @requires_memory(free_bytes=2 * 10000 * 1000 * 2)
+    def test_mean_overflow(self):
+        # Test overflow in masked arrays
+        # gh-20272
+        a = masked_array(np.full((10000, 10000), 65535, dtype=np.uint16),
+                         mask=np.zeros((10000, 10000)))
+        assert_equal(a.mean(), 65535.0)
+
+    def test_diff_with_prepend(self):
+        # GH 22465
+        x = np.array([1, 2, 2, 3, 4, 2, 1, 1])
+
+        a = np.ma.masked_equal(x[3:], value=2)
+        a_prep = np.ma.masked_equal(x[:3], value=2)
+        diff1 = np.ma.diff(a, prepend=a_prep, axis=0)
+
+        b = np.ma.masked_equal(x, value=2)
+        diff2 = np.ma.diff(b, axis=0)
+
+        assert_(np.ma.allequal(diff1, diff2))
+
+    def test_diff_with_append(self):
+        # GH 22465
+        x = np.array([1, 2, 2, 3, 4, 2, 1, 1])
+
+        a = np.ma.masked_equal(x[:3], value=2)
+        a_app = np.ma.masked_equal(x[3:], value=2)
+        diff1 = np.ma.diff(a, append=a_app, axis=0)
+
+        b = np.ma.masked_equal(x, value=2)
+        diff2 = np.ma.diff(b, axis=0)
+
+        assert_(np.ma.allequal(diff1, diff2))
+
+    def test_diff_with_dim_0(self):
+        with pytest.raises(
+            ValueError,
+            match="diff requires input that is at least one dimensional"
+            ):
+            np.ma.diff(np.array(1))
+
+    def test_diff_with_n_0(self):
+        a = np.ma.masked_equal([1, 2, 2, 3, 4, 2, 1, 1], value=2)
+        diff = np.ma.diff(a, n=0, axis=0)
+
+        assert_(np.ma.allequal(a, diff))
+
+
+class TestMaskedArrayMathMethodsComplex:
+    # Test class for miscellaneous MaskedArrays methods.
+    def _create_data(self):
+        # Base data definition.
+        x = np.array([8.375j, 7.545j, 8.828j, 8.5j, 1.757j, 5.928,
+                      8.43, 7.78, 9.865, 5.878, 8.979, 4.732,
+                      3.012, 6.022, 5.095, 3.116, 5.238, 3.957,
+                      6.04, 9.63, 7.712, 3.382, 4.489, 6.479j,
+                      7.189j, 9.645, 5.395, 4.961, 9.894, 2.893,
+                      7.357, 9.828, 6.272, 3.758, 6.693, 0.993j])
+        X = x.reshape(6, 6)
+        XX = x.reshape(3, 2, 2, 3)
+
+        m = np.array([0, 1, 0, 1, 0, 0,
+                     1, 0, 1, 1, 0, 1,
+                     0, 0, 0, 1, 0, 1,
+                     0, 0, 0, 1, 1, 1,
+                     1, 0, 0, 1, 0, 0,
+                     0, 0, 1, 0, 1, 0])
+        mx = array(data=x, mask=m)
+        mX = array(data=X, mask=m.reshape(X.shape))
+        mXX = array(data=XX, mask=m.reshape(XX.shape))
+
+        m2 = np.array([1, 1, 0, 1, 0, 0,
+                      1, 1, 1, 1, 0, 1,
+                      0, 0, 1, 1, 0, 1,
+                      0, 0, 0, 1, 1, 1,
+                      1, 0, 0, 1, 1, 0,
+                      0, 0, 1, 0, 1, 1])
+        m2x = array(data=x, mask=m2)
+        m2X = array(data=X, mask=m2.reshape(X.shape))
+        m2XX = array(data=XX, mask=m2.reshape(XX.shape))
+        return x, X, XX, m, mx, mX, mXX, m2x, m2X, m2XX
+
+    def test_varstd(self):
+        # Tests var & std on MaskedArrays.
+        _, X, XX, _, _, mX, mXX, _, _, _ = self._create_data()
+        assert_almost_equal(mX.var(axis=None), mX.compressed().var())
+        assert_almost_equal(mX.std(axis=None), mX.compressed().std())
+        assert_equal(mXX.var(axis=3).shape, XX.var(axis=3).shape)
+        assert_equal(mX.var().shape, X.var().shape)
+        (mXvar0, mXvar1) = (mX.var(axis=0), mX.var(axis=1))
+        assert_almost_equal(mX.var(axis=None, ddof=2),
+                            mX.compressed().var(ddof=2))
+        assert_almost_equal(mX.std(axis=None, ddof=2),
+                            mX.compressed().std(ddof=2))
+        for k in range(6):
+            assert_almost_equal(mXvar1[k], mX[k].compressed().var())
+            assert_almost_equal(mXvar0[k], mX[:, k].compressed().var())
+            assert_almost_equal(np.sqrt(mXvar0[k]),
+                                mX[:, k].compressed().std())
+
+
+class TestMaskedArrayFunctions:
+    # Test class for miscellaneous functions.
+    def test_masked_where_bool(self):
+        x = [1, 2]
+        y = masked_where(False, x)
+        assert_equal(y, [1, 2])
+        assert_equal(y[1], 2)
+
+    def test_masked_equal_wlist(self):
+        x = [1, 2, 3]
+        mx = masked_equal(x, 3)
+        assert_equal(mx, x)
+        assert_equal(mx._mask, [0, 0, 1])
+        mx = masked_not_equal(x, 3)
+        assert_equal(mx, x)
+        assert_equal(mx._mask, [1, 1, 0])
+
+    def test_masked_equal_fill_value(self):
+        x = [1, 2, 3]
+        mx = masked_equal(x, 3)
+        assert_equal(mx._mask, [0, 0, 1])
+        assert_equal(mx.fill_value, 3)
+
+    def test_masked_where_condition(self):
+        # Tests masking functions.
+        x = array([1., 2., 3., 4., 5.])
+        x[2] = masked
+        assert_equal(masked_where(greater(x, 2), x), masked_greater(x, 2))
+        assert_equal(masked_where(greater_equal(x, 2), x),
+                     masked_greater_equal(x, 2))
+        assert_equal(masked_where(less(x, 2), x), masked_less(x, 2))
+        assert_equal(masked_where(less_equal(x, 2), x),
+                     masked_less_equal(x, 2))
+        assert_equal(masked_where(not_equal(x, 2), x), masked_not_equal(x, 2))
+        assert_equal(masked_where(equal(x, 2), x), masked_equal(x, 2))
+        assert_equal(masked_where(not_equal(x, 2), x), masked_not_equal(x, 2))
+        assert_equal(masked_where([1, 1, 0, 0, 0], [1, 2, 3, 4, 5]),
+                     [99, 99, 3, 4, 5])
+
+    def test_masked_where_oddities(self):
+        # Tests some generic features.
+        atest = ones((10, 10, 10), dtype=float)
+        btest = zeros(atest.shape, MaskType)
+        ctest = masked_where(btest, atest)
+        assert_equal(atest, ctest)
+
+    def test_masked_where_shape_constraint(self):
+        a = arange(10)
+        with assert_raises(IndexError):
+            masked_equal(1, a)
+        test = masked_equal(a, 1)
+        assert_equal(test.mask, [0, 1, 0, 0, 0, 0, 0, 0, 0, 0])
+
+    def test_masked_where_structured(self):
+        # test that masked_where on a structured array sets a structured
+        # mask (see issue #2972)
+        a = np.zeros(10, dtype=[("A", "<f2"), ("B", "<f4")])
+        with np.errstate(over="ignore"):
+            # NOTE: The float16 "uses" 1e20 as mask, which overflows to inf
+            #       and warns.  Unrelated to this test, but probably undesired.
+            #       But NumPy previously did not warn for this overflow.
+            am = np.ma.masked_where(a["A"] < 5, a)
+        assert_equal(am.mask.dtype.names, am.dtype.names)
+        assert_equal(am["A"],
+                    np.ma.masked_array(np.zeros(10), np.ones(10)))
+
+    def test_masked_where_mismatch(self):
+        # gh-4520
+        x = np.arange(10)
+        y = np.arange(5)
+        assert_raises(IndexError, np.ma.masked_where, y > 6, x)
+
+    def test_masked_otherfunctions(self):
+        assert_equal(masked_inside(list(range(5)), 1, 3),
+                     [0, 199, 199, 199, 4])
+        assert_equal(masked_outside(list(range(5)), 1, 3), [199, 1, 2, 3, 199])
+        assert_equal(masked_inside(array(list(range(5)),
+                                         mask=[1, 0, 0, 0, 0]), 1, 3).mask,
+                     [1, 1, 1, 1, 0])
+        assert_equal(masked_outside(array(list(range(5)),
+                                          mask=[0, 1, 0, 0, 0]), 1, 3).mask,
+                     [1, 1, 0, 0, 1])
+        assert_equal(masked_equal(array(list(range(5)),
+                                        mask=[1, 0, 0, 0, 0]), 2).mask,
+                     [1, 0, 1, 0, 0])
+        assert_equal(masked_not_equal(array([2, 2, 1, 2, 1],
+                                            mask=[1, 0, 0, 0, 0]), 2).mask,
+                     [1, 0, 1, 0, 1])
+
+    def test_round(self):
+        a = array([1.23456, 2.34567, 3.45678, 4.56789, 5.67890],
+                  mask=[0, 1, 0, 0, 0])
+        assert_equal(a.round(), [1., 2., 3., 5., 6.])
+        assert_equal(a.round(1), [1.2, 2.3, 3.5, 4.6, 5.7])
+        assert_equal(a.round(3), [1.235, 2.346, 3.457, 4.568, 5.679])
+        b = empty_like(a)
+        a.round(out=b)
+        assert_equal(b, [1., 2., 3., 5., 6.])
+
+        x = array([1., 2., 3., 4., 5.])
+        c = array([1, 1, 1, 0, 0])
+        x[2] = masked
+        z = where(c, x, -x)
+        assert_equal(z, [1., 2., 0., -4., -5])
+        c[0] = masked
+        z = where(c, x, -x)
+        assert_equal(z, [1., 2., 0., -4., -5])
+        assert_(z[0] is masked)
+        assert_(z[1] is not masked)
+        assert_(z[2] is masked)
+
+    def test_round_with_output(self):
+        # Testing round with an explicit output
+
+        xm = array(np.random.uniform(0, 10, 12)).reshape(3, 4)
+        xm[:, 0] = xm[0] = xm[-1, -1] = masked
+
+        # A ndarray as explicit input
+        output = np.empty((3, 4), dtype=float)
+        output.fill(-9999)
+        result = np.round(xm, decimals=2, out=output)
+        # ... the result should be the given output
+        assert_(result is output)
+        assert_equal(result, xm.round(decimals=2, out=output))
+
+        output = empty((3, 4), dtype=float)
+        result = xm.round(decimals=2, out=output)
+        assert_(result is output)
+
+    def test_round_with_scalar(self):
+        # Testing round with scalar/zero dimension input
+        # GH issue 2244
+        a = array(1.1, mask=[False])
+        assert_equal(a.round(), 1)
+
+        a = array(1.1, mask=[True])
+        assert_(a.round() is masked)
+
+        a = array(1.1, mask=[False])
+        output = np.empty(1, dtype=float)
+        output.fill(-9999)
+        a.round(out=output)
+        assert_equal(output, 1)
+
+        a = array(1.1, mask=[False])
+        output = array(-9999., mask=[True])
+        a.round(out=output)
+        assert_equal(output[()], 1)
+
+        a = array(1.1, mask=[True])
+        output = array(-9999., mask=[False])
+        a.round(out=output)
+        assert_(output[()] is masked)
+
+    def test_identity(self):
+        a = identity(5)
+        assert_(isinstance(a, MaskedArray))
+        assert_equal(a, np.identity(5))
+
+    def test_power(self):
+        x = -1.1
+        assert_almost_equal(power(x, 2.), 1.21)
+        assert_(power(x, masked) is masked)
+        x = array([-1.1, -1.1, 1.1, 1.1, 0.])
+        b = array([0.5, 2., 0.5, 2., -1.], mask=[0, 0, 0, 0, 1])
+        y = power(x, b)
+        assert_almost_equal(y, [0, 1.21, 1.04880884817, 1.21, 0.])
+        assert_equal(y._mask, [1, 0, 0, 0, 1])
+        b.mask = nomask
+        y = power(x, b)
+        assert_equal(y._mask, [1, 0, 0, 0, 1])
+        z = x ** b
+        assert_equal(z._mask, y._mask)
+        assert_almost_equal(z, y)
+        assert_almost_equal(z._data, y._data)
+        x **= b
+        assert_equal(x._mask, y._mask)
+        assert_almost_equal(x, y)
+        assert_almost_equal(x._data, y._data)
+
+    def test_power_with_broadcasting(self):
+        # Test power w/ broadcasting
+        a2 = np.array([[1., 2., 3.], [4., 5., 6.]])
+        a2m = array(a2, mask=[[1, 0, 0], [0, 0, 1]])
+        b1 = np.array([2, 4, 3])
+        b2 = np.array([b1, b1])
+        b2m = array(b2, mask=[[0, 1, 0], [0, 1, 0]])
+
+        ctrl = array([[1 ** 2, 2 ** 4, 3 ** 3], [4 ** 2, 5 ** 4, 6 ** 3]],
+                     mask=[[1, 1, 0], [0, 1, 1]])
+        # No broadcasting, base & exp w/ mask
+        test = a2m ** b2m
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, ctrl.mask)
+        # No broadcasting, base w/ mask, exp w/o mask
+        test = a2m ** b2
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, a2m.mask)
+        # No broadcasting, base w/o mask, exp w/ mask
+        test = a2 ** b2m
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, b2m.mask)
+
+        ctrl = array([[2 ** 2, 4 ** 4, 3 ** 3], [2 ** 2, 4 ** 4, 3 ** 3]],
+                     mask=[[0, 1, 0], [0, 1, 0]])
+        test = b1 ** b2m
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, ctrl.mask)
+        test = b2m ** b1
+        assert_equal(test, ctrl)
+        assert_equal(test.mask, ctrl.mask)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    def test_where(self):
+        # Test the where function
+        x = np.array([1., 1., 1., -2., pi / 2.0, 4., 5., -10., 10., 1., 2., 3.])
+        y = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.])
+        m1 = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
+        m2 = [0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1]
+        xm = masked_array(x, mask=m1)
+        ym = masked_array(y, mask=m2)
+        xm.set_fill_value(1e+20)
+
+        d = where(xm > 2, xm, -9)
+        assert_equal(d, [-9., -9., -9., -9., -9., 4.,
+                         -9., -9., 10., -9., -9., 3.])
+        assert_equal(d._mask, xm._mask)
+        d = where(xm > 2, -9, ym)
+        assert_equal(d, [5., 0., 3., 2., -1., -9.,
+                         -9., -10., -9., 1., 0., -9.])
+        assert_equal(d._mask, [1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0])
+        d = where(xm > 2, xm, masked)
+        assert_equal(d, [-9., -9., -9., -9., -9., 4.,
+                         -9., -9., 10., -9., -9., 3.])
+        tmp = xm._mask.copy()
+        tmp[(xm <= 2).filled(True)] = True
+        assert_equal(d._mask, tmp)
+
+        with np.errstate(invalid="warn"):
+            # The fill value is 1e20, it cannot be converted to `int`:
+            with pytest.warns(RuntimeWarning, match="invalid value"):
+                ixm = xm.astype(int)
+        d = where(ixm > 2, ixm, masked)
+        assert_equal(d, [-9, -9, -9, -9, -9, 4, -9, -9, 10, -9, -9, 3])
+        assert_equal(d.dtype, ixm.dtype)
+
+    def test_where_object(self):
+        a = np.array(None)
+        b = masked_array(None)
+        r = b.copy()
+        assert_equal(np.ma.where(True, a, a), r)
+        assert_equal(np.ma.where(True, b, b), r)
+
+    def test_where_with_masked_choice(self):
+        x = arange(10)
+        x[3] = masked
+        c = x >= 8
+        # Set False to masked
+        z = where(c, x, masked)
+        assert_(z.dtype is x.dtype)
+        assert_(z[3] is masked)
+        assert_(z[4] is masked)
+        assert_(z[7] is masked)
+        assert_(z[8] is not masked)
+        assert_(z[9] is not masked)
+        assert_equal(x, z)
+        # Set True to masked
+        z = where(c, masked, x)
+        assert_(z.dtype is x.dtype)
+        assert_(z[3] is masked)
+        assert_(z[4] is not masked)
+        assert_(z[7] is not masked)
+        assert_(z[8] is masked)
+        assert_(z[9] is masked)
+
+    def test_where_with_masked_condition(self):
+        x = array([1., 2., 3., 4., 5.])
+        c = array([1, 1, 1, 0, 0])
+        x[2] = masked
+        z = where(c, x, -x)
+        assert_equal(z, [1., 2., 0., -4., -5])
+        c[0] = masked
+        z = where(c, x, -x)
+        assert_equal(z, [1., 2., 0., -4., -5])
+        assert_(z[0] is masked)
+        assert_(z[1] is not masked)
+        assert_(z[2] is masked)
+
+        x = arange(1, 6)
+        x[-1] = masked
+        y = arange(1, 6) * 10
+        y[2] = masked
+        c = array([1, 1, 1, 0, 0], mask=[1, 0, 0, 0, 0])
+        cm = c.filled(1)
+        z = where(c, x, y)
+        zm = where(cm, x, y)
+        assert_equal(z, zm)
+        assert_(getmask(zm) is nomask)
+        assert_equal(zm, [1, 2, 3, 40, 50])
+        z = where(c, masked, 1)
+        assert_equal(z, [99, 99, 99, 1, 1])
+        z = where(c, 1, masked)
+        assert_equal(z, [99, 1, 1, 99, 99])
+
+    def test_where_type(self):
+        # Test the type conservation with where
+        x = np.arange(4, dtype=np.int32)
+        y = np.arange(4, dtype=np.float32) * 2.2
+        test = where(x > 1.5, y, x).dtype
+        control = np.result_type(np.int32, np.float32)
+        assert_equal(test, control)
+
+    def test_where_broadcast(self):
+        # Issue 8599
+        x = np.arange(9).reshape(3, 3)
+        y = np.zeros(3)
+        core = np.where([1, 0, 1], x, y)
+        ma = where([1, 0, 1], x, y)
+
+        assert_equal(core, ma)
+        assert_equal(core.dtype, ma.dtype)
+
+    def test_where_structured(self):
+        # Issue 8600
+        dt = np.dtype([('a', int), ('b', int)])
+        x = np.array([(1, 2), (3, 4), (5, 6)], dtype=dt)
+        y = np.array((10, 20), dtype=dt)
+        core = np.where([0, 1, 1], x, y)
+        ma = np.where([0, 1, 1], x, y)
+
+        assert_equal(core, ma)
+        assert_equal(core.dtype, ma.dtype)
+
+    def test_where_structured_masked(self):
+        dt = np.dtype([('a', int), ('b', int)])
+        x = np.array([(1, 2), (3, 4), (5, 6)], dtype=dt)
+
+        ma = where([0, 1, 1], x, masked)
+        expected = masked_where([1, 0, 0], x)
+
+        assert_equal(ma.dtype, expected.dtype)
+        assert_equal(ma, expected)
+        assert_equal(ma.mask, expected.mask)
+
+    def test_masked_invalid_error(self):
+        a = np.arange(5, dtype=object)
+        a[3] = np.inf
+        a[2] = np.nan
+        with pytest.raises(TypeError,
+                           match="not supported for the input types"):
+            np.ma.masked_invalid(a)
+
+    def test_masked_invalid_pandas(self):
+        # getdata() used to be bad for pandas series due to its _data
+        # attribute.  This test is a regression test mainly and may be
+        # removed if getdata() is adjusted.
+        class Series:
+            _data = "nonsense"
+
+            def __array__(self, dtype=None, copy=None):
+                return np.array([5, np.nan, np.inf])
+
+        arr = np.ma.masked_invalid(Series())
+        assert_array_equal(arr._data, np.array(Series()))
+        assert_array_equal(arr._mask, [False, True, True])
+
+    @pytest.mark.parametrize("copy", [True, False])
+    def test_masked_invalid_full_mask(self, copy):
+        # Matplotlib relied on masked_invalid always returning a full mask
+        # (Also astropy projects, but were ok with it gh-22720 and gh-22842)
+        a = np.ma.array([1, 2, 3, 4])
+        assert a._mask is nomask
+        res = np.ma.masked_invalid(a, copy=copy)
+        assert res.mask is not nomask
+        # mask of a should not be mutated
+        assert a.mask is nomask
+        assert np.may_share_memory(a._data, res._data) != copy
+
+    def test_choose(self):
+        # Test choose
+        choices = [[0, 1, 2, 3], [10, 11, 12, 13],
+                   [20, 21, 22, 23], [30, 31, 32, 33]]
+        chosen = choose([2, 3, 1, 0], choices)
+        assert_equal(chosen, array([20, 31, 12, 3]))
+        chosen = choose([2, 4, 1, 0], choices, mode='clip')
+        assert_equal(chosen, array([20, 31, 12, 3]))
+        chosen = choose([2, 4, 1, 0], choices, mode='wrap')
+        assert_equal(chosen, array([20, 1, 12, 3]))
+        # Check with some masked indices
+        indices_ = array([2, 4, 1, 0], mask=[1, 0, 0, 1])
+        chosen = choose(indices_, choices, mode='wrap')
+        assert_equal(chosen, array([99, 1, 12, 99]))
+        assert_equal(chosen.mask, [1, 0, 0, 1])
+        # Check with some masked choices
+        choices = array(choices, mask=[[0, 0, 0, 1], [1, 1, 0, 1],
+                                       [1, 0, 0, 0], [0, 0, 0, 0]])
+        indices_ = [2, 3, 1, 0]
+        chosen = choose(indices_, choices, mode='wrap')
+        assert_equal(chosen, array([20, 31, 12, 3]))
+        assert_equal(chosen.mask, [1, 0, 0, 1])
+
+    def test_choose_with_out(self):
+        # Test choose with an explicit out keyword
+        choices = [[0, 1, 2, 3], [10, 11, 12, 13],
+                   [20, 21, 22, 23], [30, 31, 32, 33]]
+        store = empty(4, dtype=int)
+        chosen = choose([2, 3, 1, 0], choices, out=store)
+        assert_equal(store, array([20, 31, 12, 3]))
+        assert_(store is chosen)
+        # Check with some masked indices + out
+        store = empty(4, dtype=int)
+        indices_ = array([2, 3, 1, 0], mask=[1, 0, 0, 1])
+        chosen = choose(indices_, choices, mode='wrap', out=store)
+        assert_equal(store, array([99, 31, 12, 99]))
+        assert_equal(store.mask, [1, 0, 0, 1])
+        # Check with some masked choices + out ina ndarray !
+        choices = array(choices, mask=[[0, 0, 0, 1], [1, 1, 0, 1],
+                                       [1, 0, 0, 0], [0, 0, 0, 0]])
+        indices_ = [2, 3, 1, 0]
+        store = empty(4, dtype=int).view(ndarray)
+        chosen = choose(indices_, choices, mode='wrap', out=store)
+        assert_equal(store, array([999999, 31, 12, 999999]))
+
+    def test_reshape(self):
+        a = arange(10)
+        a[0] = masked
+        # Try the default
+        b = a.reshape((5, 2))
+        assert_equal(b.shape, (5, 2))
+        assert_(b.flags['C'])
+        # Try w/ arguments as list instead of tuple
+        b = a.reshape(5, 2)
+        assert_equal(b.shape, (5, 2))
+        assert_(b.flags['C'])
+        # Try w/ order
+        b = a.reshape((5, 2), order='F')
+        assert_equal(b.shape, (5, 2))
+        assert_(b.flags['F'])
+        # Try w/ order
+        b = a.reshape(5, 2, order='F')
+        assert_equal(b.shape, (5, 2))
+        assert_(b.flags['F'])
+
+        c = np.reshape(a, (2, 5))
+        assert_(isinstance(c, MaskedArray))
+        assert_equal(c.shape, (2, 5))
+        assert_(c[0, 0] is masked)
+        assert_(c.flags['C'])
+
+    def test_make_mask_descr(self):
+        # Flexible
+        ntype = [('a', float), ('b', float)]
+        test = make_mask_descr(ntype)
+        assert_equal(test, [('a', bool), ('b', bool)])
+        assert_(test is make_mask_descr(test))
+
+        # Standard w/ shape
+        ntype = (float, 2)
+        test = make_mask_descr(ntype)
+        assert_equal(test, (bool, 2))
+        assert_(test is make_mask_descr(test))
+
+        # Standard standard
+        ntype = float
+        test = make_mask_descr(ntype)
+        assert_equal(test, np.dtype(bool))
+        assert_(test is make_mask_descr(test))
+
+        # Nested
+        ntype = [('a', float), ('b', [('ba', float), ('bb', float)])]
+        test = make_mask_descr(ntype)
+        control = np.dtype([('a', 'b1'), ('b', [('ba', 'b1'), ('bb', 'b1')])])
+        assert_equal(test, control)
+        assert_(test is make_mask_descr(test))
+
+        # Named+ shape
+        ntype = [('a', (float, 2))]
+        test = make_mask_descr(ntype)
+        assert_equal(test, np.dtype([('a', (bool, 2))]))
+        assert_(test is make_mask_descr(test))
+
+        # 2 names
+        ntype = [(('A', 'a'), float)]
+        test = make_mask_descr(ntype)
+        assert_equal(test, np.dtype([(('A', 'a'), bool)]))
+        assert_(test is make_mask_descr(test))
+
+        # nested boolean types should preserve identity
+        base_type = np.dtype([('a', int, 3)])
+        base_mtype = make_mask_descr(base_type)
+        sub_type = np.dtype([('a', int), ('b', base_mtype)])
+        test = make_mask_descr(sub_type)
+        assert_equal(test, np.dtype([('a', bool), ('b', [('a', bool, 3)])]))
+        assert_(test.fields['b'][0] is base_mtype)
+
+    def test_make_mask(self):
+        # Test make_mask
+        # w/ a list as an input
+        mask = [0, 1]
+        test = make_mask(mask)
+        assert_equal(test.dtype, MaskType)
+        assert_equal(test, [0, 1])
+        # w/ a ndarray as an input
+        mask = np.array([0, 1], dtype=bool)
+        test = make_mask(mask)
+        assert_equal(test.dtype, MaskType)
+        assert_equal(test, [0, 1])
+        # w/ a flexible-type ndarray as an input - use default
+        mdtype = [('a', bool), ('b', bool)]
+        mask = np.array([(0, 0), (0, 1)], dtype=mdtype)
+        test = make_mask(mask)
+        assert_equal(test.dtype, MaskType)
+        assert_equal(test, [1, 1])
+        # w/ a flexible-type ndarray as an input - use input dtype
+        mdtype = [('a', bool), ('b', bool)]
+        mask = np.array([(0, 0), (0, 1)], dtype=mdtype)
+        test = make_mask(mask, dtype=mask.dtype)
+        assert_equal(test.dtype, mdtype)
+        assert_equal(test, mask)
+        # w/ a flexible-type ndarray as an input - use input dtype
+        mdtype = [('a', float), ('b', float)]
+        bdtype = [('a', bool), ('b', bool)]
+        mask = np.array([(0, 0), (0, 1)], dtype=mdtype)
+        test = make_mask(mask, dtype=mask.dtype)
+        assert_equal(test.dtype, bdtype)
+        assert_equal(test, np.array([(0, 0), (0, 1)], dtype=bdtype))
+        # Ensure this also works for void
+        mask = np.array((False, True), dtype='?,?')[()]
+        assert_(isinstance(mask, np.void))
+        test = make_mask(mask, dtype=mask.dtype)
+        assert_equal(test, mask)
+        assert_(test is not mask)
+        mask = np.array((0, 1), dtype='i4,i4')[()]
+        test2 = make_mask(mask, dtype=mask.dtype)
+        assert_equal(test2, test)
+        # test that nomask is returned when m is nomask.
+        bools = [True, False]
+        dtypes = [MaskType, float]
+        msgformat = 'copy=%s, shrink=%s, dtype=%s'
+        for cpy, shr, dt in itertools.product(bools, bools, dtypes):
+            res = make_mask(nomask, copy=cpy, shrink=shr, dtype=dt)
+            assert_(res is nomask, msgformat % (cpy, shr, dt))
+
+    def test_mask_or(self):
+        # Initialize
+        mtype = [('a', bool), ('b', bool)]
+        mask = np.array([(0, 0), (0, 1), (1, 0), (0, 0)], dtype=mtype)
+        # Test using nomask as input
+        test = mask_or(mask, nomask)
+        assert_equal(test, mask)
+        test = mask_or(nomask, mask)
+        assert_equal(test, mask)
+        # Using False as input
+        test = mask_or(mask, False)
+        assert_equal(test, mask)
+        # Using another array w / the same dtype
+        other = np.array([(0, 1), (0, 1), (0, 1), (0, 1)], dtype=mtype)
+        test = mask_or(mask, other)
+        control = np.array([(0, 1), (0, 1), (1, 1), (0, 1)], dtype=mtype)
+        assert_equal(test, control)
+        # Using another array w / a different dtype
+        othertype = [('A', bool), ('B', bool)]
+        other = np.array([(0, 1), (0, 1), (0, 1), (0, 1)], dtype=othertype)
+        try:
+            test = mask_or(mask, other)
+        except ValueError:
+            pass
+        # Using nested arrays
+        dtype = [('a', bool), ('b', [('ba', bool), ('bb', bool)])]
+        amask = np.array([(0, (1, 0)), (0, (1, 0))], dtype=dtype)
+        bmask = np.array([(1, (0, 1)), (0, (0, 0))], dtype=dtype)
+        cntrl = np.array([(1, (1, 1)), (0, (1, 0))], dtype=dtype)
+        assert_equal(mask_or(amask, bmask), cntrl)
+
+        a = np.array([False, False])
+        assert mask_or(a, a) is nomask  # gh-27360
+
+    def test_allequal(self):
+        x = array([1, 2, 3], mask=[0, 0, 0])
+        y = array([1, 2, 3], mask=[1, 0, 0])
+        z = array([[1, 2, 3], [4, 5, 6]], mask=[[0, 0, 0], [1, 1, 1]])
+
+        assert allequal(x, y)
+        assert not allequal(x, y, fill_value=False)
+        assert allequal(x, z)
+
+        # test allequal for the same input, with mask=nomask, this test is for
+        # the scenario raised in https://github.com/numpy/numpy/issues/27201
+        assert allequal(x, x)
+        assert allequal(x, x, fill_value=False)
+
+        assert allequal(y, y)
+        assert not allequal(y, y, fill_value=False)
+
+    def test_flatten_mask(self):
+        # Tests flatten mask
+        # Standard dtype
+        mask = np.array([0, 0, 1], dtype=bool)
+        assert_equal(flatten_mask(mask), mask)
+        # Flexible dtype
+        mask = np.array([(0, 0), (0, 1)], dtype=[('a', bool), ('b', bool)])
+        test = flatten_mask(mask)
+        control = np.array([0, 0, 0, 1], dtype=bool)
+        assert_equal(test, control)
+
+        mdtype = [('a', bool), ('b', [('ba', bool), ('bb', bool)])]
+        data = [(0, (0, 0)), (0, (0, 1))]
+        mask = np.array(data, dtype=mdtype)
+        test = flatten_mask(mask)
+        control = np.array([0, 0, 0, 0, 0, 1], dtype=bool)
+        assert_equal(test, control)
+
+    def test_on_ndarray(self):
+        # Test functions on ndarrays
+        a = np.array([1, 2, 3, 4])
+        m = array(a, mask=False)
+        test = anom(a)
+        assert_equal(test, m.anom())
+        test = reshape(a, (2, 2))
+        assert_equal(test, m.reshape(2, 2))
+
+    def test_compress(self):
+        # Test compress function on ndarray and masked array
+        # Address Github #2495.
+        arr = np.arange(8)
+        arr.shape = 4, 2
+        cond = np.array([True, False, True, True])
+        control = arr[[0, 2, 3]]
+        test = np.ma.compress(cond, arr, axis=0)
+        assert_equal(test, control)
+        marr = np.ma.array(arr)
+        test = np.ma.compress(cond, marr, axis=0)
+        assert_equal(test, control)
+
+    def test_compressed(self):
+        # Test ma.compressed function.
+        # Address gh-4026
+        a = np.ma.array([1, 2])
+        test = np.ma.compressed(a)
+        assert_(type(test) is np.ndarray)
+
+        # Test case when input data is ndarray subclass
+        class A(np.ndarray):
+            pass
+
+        a = np.ma.array(A(shape=0))
+        test = np.ma.compressed(a)
+        assert_(type(test) is A)
+
+        # Test that compress flattens
+        test = np.ma.compressed([[1], [2]])
+        assert_equal(test.ndim, 1)
+        test = np.ma.compressed([[[[[1]]]]])
+        assert_equal(test.ndim, 1)
+
+        # Test case when input is MaskedArray subclass
+        class M(MaskedArray):
+            pass
+
+        test = np.ma.compressed(M([[[]], [[]]]))
+        assert_equal(test.ndim, 1)
+
+        # with .compressed() overridden
+        class M(MaskedArray):
+            def compressed(self):
+                return 42
+
+        test = np.ma.compressed(M([[[]], [[]]]))
+        assert_equal(test, 42)
+
+    def test_convolve(self):
+        a = masked_equal(np.arange(5), 2)
+        b = np.array([1, 1])
+
+        result = masked_equal([0, 1, -1, -1, 7, 4], -1)
+        test = np.ma.convolve(a, b, mode='full')
+        assert_equal(test, result)
+
+        test = np.ma.convolve(a, b, mode='same')
+        assert_equal(test, result[:-1])
+
+        test = np.ma.convolve(a, b, mode='valid')
+        assert_equal(test, result[1:-1])
+
+        result = masked_equal([0, 1, 1, 3, 7, 4], -1)
+        test = np.ma.convolve(a, b, mode='full', propagate_mask=False)
+        assert_equal(test, result)
+
+        test = np.ma.convolve(a, b, mode='same', propagate_mask=False)
+        assert_equal(test, result[:-1])
+
+        test = np.ma.convolve(a, b, mode='valid', propagate_mask=False)
+        assert_equal(test, result[1:-1])
+
+        test = np.ma.convolve([1, 1], [1, 1, 1])
+        assert_equal(test, masked_equal([1, 2, 2, 1], -1))
+
+        a = [1, 1]
+        b = masked_equal([1, -1, -1, 1], -1)
+        test = np.ma.convolve(a, b, propagate_mask=False)
+        assert_equal(test, masked_equal([1, 1, -1, 1, 1], -1))
+        test = np.ma.convolve(a, b, propagate_mask=True)
+        assert_equal(test, masked_equal([-1, -1, -1, -1, -1], -1))
+
+
+class TestMaskedFields:
+    def _create_data(self):
+        ilist = [1, 2, 3, 4, 5]
+        flist = [1.1, 2.2, 3.3, 4.4, 5.5]
+        slist = ['one', 'two', 'three', 'four', 'five']
+        ddtype = [('a', int), ('b', float), ('c', '|S8')]
+        mdtype = [('a', bool), ('b', bool), ('c', bool)]
+        mask = [0, 1, 0, 0, 1]
+        base = array(list(zip(ilist, flist, slist)), mask=mask, dtype=ddtype)
+        return {"base": base, "mask": mask, "ddtype": ddtype, "mdtype": mdtype}
+
+    def test_set_records_masks(self):
+        data = self._create_data()
+        base = data['base']
+        mdtype = data['mdtype']
+        # Set w/ nomask or masked
+        base.mask = nomask
+        assert_equal_records(base._mask, np.zeros(base.shape, dtype=mdtype))
+        base.mask = masked
+        assert_equal_records(base._mask, np.ones(base.shape, dtype=mdtype))
+        # Set w/ simple boolean
+        base.mask = False
+        assert_equal_records(base._mask, np.zeros(base.shape, dtype=mdtype))
+        base.mask = True
+        assert_equal_records(base._mask, np.ones(base.shape, dtype=mdtype))
+        # Set w/ list
+        base.mask = [0, 0, 0, 1, 1]
+        assert_equal_records(base._mask,
+                             np.array([(x, x, x) for x in [0, 0, 0, 1, 1]],
+                                      dtype=mdtype))
+
+    def test_set_record_element(self):
+        # Check setting an element of a record)
+        base = self._create_data()['base']
+        (base_a, base_b, base_c) = (base['a'], base['b'], base['c'])
+        base[0] = (pi, pi, 'pi')
+
+        assert_equal(base_a.dtype, int)
+        assert_equal(base_a._data, [3, 2, 3, 4, 5])
+
+        assert_equal(base_b.dtype, float)
+        assert_equal(base_b._data, [pi, 2.2, 3.3, 4.4, 5.5])
+
+        assert_equal(base_c.dtype, '|S8')
+        assert_equal(base_c._data,
+                     [b'pi', b'two', b'three', b'four', b'five'])
+
+    def test_set_record_slice(self):
+        base = self._create_data()['base']
+        (base_a, base_b, base_c) = (base['a'], base['b'], base['c'])
+        base[:3] = (pi, pi, 'pi')
+
+        assert_equal(base_a.dtype, int)
+        assert_equal(base_a._data, [3, 3, 3, 4, 5])
+
+        assert_equal(base_b.dtype, float)
+        assert_equal(base_b._data, [pi, pi, pi, 4.4, 5.5])
+
+        assert_equal(base_c.dtype, '|S8')
+        assert_equal(base_c._data,
+                     [b'pi', b'pi', b'pi', b'four', b'five'])
+
+    def test_mask_element(self):
+        "Check record access"
+        base = self._create_data()['base']
+        base[0] = masked
+
+        for n in ('a', 'b', 'c'):
+            assert_equal(base[n].mask, [1, 1, 0, 0, 1])
+            assert_equal(base[n]._data, base._data[n])
+
+    def test_getmaskarray(self):
+        # Test getmaskarray on flexible dtype
+        ndtype = [('a', int), ('b', float)]
+        test = empty(3, dtype=ndtype)
+        assert_equal(getmaskarray(test),
+                     np.array([(0, 0), (0, 0), (0, 0)],
+                              dtype=[('a', '|b1'), ('b', '|b1')]))
+        test[:] = masked
+        assert_equal(getmaskarray(test),
+                     np.array([(1, 1), (1, 1), (1, 1)],
+                              dtype=[('a', '|b1'), ('b', '|b1')]))
+
+    def test_view(self):
+        # Test view w/ flexible dtype
+        iterator = list(zip(np.arange(10), np.random.rand(10)))
+        data = np.array(iterator)
+        a = array(iterator, dtype=[('a', float), ('b', float)])
+        a.mask[0] = (1, 0)
+        controlmask = np.array([1] + 19 * [0], dtype=bool)
+        # Transform globally to simple dtype
+        test = a.view(float)
+        assert_equal(test, data.ravel())
+        assert_equal(test.mask, controlmask)
+        # Transform globally to dty
+        test = a.view((float, 2))
+        assert_equal(test, data)
+        assert_equal(test.mask, controlmask.reshape(-1, 2))
+
+    def test_getitem(self):
+        ndtype = [('a', float), ('b', float)]
+        a = array(list(zip(np.random.rand(10), np.arange(10))), dtype=ndtype)
+        a.mask = np.array(list(zip([0, 0, 0, 0, 0, 0, 0, 0, 1, 1],
+                                   [1, 0, 0, 0, 0, 0, 0, 0, 1, 0])),
+                          dtype=[('a', bool), ('b', bool)])
+
+        def _test_index(i):
+            assert_equal(type(a[i]), mvoid)
+            assert_equal_records(a[i]._data, a._data[i])
+            assert_equal_records(a[i]._mask, a._mask[i])
+
+            assert_equal(type(a[i, ...]), MaskedArray)
+            assert_equal_records(a[i, ...]._data, a._data[i, ...])
+            assert_equal_records(a[i, ...]._mask, a._mask[i, ...])
+
+        _test_index(1)   # No mask
+        _test_index(0)   # One element masked
+        _test_index(-2)  # All element masked
+
+    def test_setitem(self):
+        # Issue 4866: check that one can set individual items in [record][col]
+        # and [col][record] order
+        ndtype = np.dtype([('a', float), ('b', int)])
+        ma = np.ma.MaskedArray([(1.0, 1), (2.0, 2)], dtype=ndtype)
+        ma['a'][1] = 3.0
+        assert_equal(ma['a'], np.array([1.0, 3.0]))
+        ma[1]['a'] = 4.0
+        assert_equal(ma['a'], np.array([1.0, 4.0]))
+        # Issue 2403
+        mdtype = np.dtype([('a', bool), ('b', bool)])
+        # soft mask
+        control = np.array([(False, True), (True, True)], dtype=mdtype)
+        a = np.ma.masked_all((2,), dtype=ndtype)
+        a['a'][0] = 2
+        assert_equal(a.mask, control)
+        a = np.ma.masked_all((2,), dtype=ndtype)
+        a[0]['a'] = 2
+        assert_equal(a.mask, control)
+        # hard mask
+        control = np.array([(True, True), (True, True)], dtype=mdtype)
+        a = np.ma.masked_all((2,), dtype=ndtype)
+        a.harden_mask()
+        a['a'][0] = 2
+        assert_equal(a.mask, control)
+        a = np.ma.masked_all((2,), dtype=ndtype)
+        a.harden_mask()
+        a[0]['a'] = 2
+        assert_equal(a.mask, control)
+
+    def test_setitem_scalar(self):
+        # 8510
+        mask_0d = np.ma.masked_array(1, mask=True)
+        arr = np.ma.arange(3)
+        arr[0] = mask_0d
+        assert_array_equal(arr.mask, [True, False, False])
+
+    def test_element_len(self):
+        data = self._create_data()
+        # check that len() works for mvoid (Github issue #576)
+        for rec in data['base']:
+            assert_equal(len(rec), len(data['ddtype']))
+
+
+class TestMaskedObjectArray:
+
+    def test_getitem(self):
+        arr = np.ma.array([None, None])
+        for dt in [float, object]:
+            a0 = np.eye(2).astype(dt)
+            a1 = np.eye(3).astype(dt)
+            arr[0] = a0
+            arr[1] = a1
+
+            assert_(arr[0] is a0)
+            assert_(arr[1] is a1)
+            assert_(isinstance(arr[0, ...], MaskedArray))
+            assert_(isinstance(arr[1, ...], MaskedArray))
+            assert_(arr[0, ...][()] is a0)
+            assert_(arr[1, ...][()] is a1)
+
+            arr[0] = np.ma.masked
+
+            assert_(arr[1] is a1)
+            assert_(isinstance(arr[0, ...], MaskedArray))
+            assert_(isinstance(arr[1, ...], MaskedArray))
+            assert_equal(arr[0, ...].mask, True)
+            assert_(arr[1, ...][()] is a1)
+
+            # gh-5962 - object arrays of arrays do something special
+            assert_equal(arr[0].data, a0)
+            assert_equal(arr[0].mask, True)
+            assert_equal(arr[0, ...][()].data, a0)
+            assert_equal(arr[0, ...][()].mask, True)
+
+    def test_nested_ma(self):
+
+        arr = np.ma.array([None, None])
+        # set the first object to be an unmasked masked constant. A little fiddly
+        arr[0, ...] = np.array([np.ma.masked], object)[0, ...]
+
+        # check the above line did what we were aiming for
+        assert_(arr.data[0] is np.ma.masked)
+
+        # test that getitem returned the value by identity
+        assert_(arr[0] is np.ma.masked)
+
+        # now mask the masked value!
+        arr[0] = np.ma.masked
+        assert_(arr[0] is np.ma.masked)
+
+
+class TestMaskedView:
+    def _create_data(self):
+        iterator = list(zip(np.arange(10), np.random.rand(10)))
+        data = np.array(iterator)
+        a = array(iterator, dtype=[('a', float), ('b', float)])
+        a.mask[0] = (1, 0)
+        controlmask = np.array([1] + 19 * [0], dtype=bool)
+        return data, a, controlmask
+
+    def test_view_to_nothing(self):
+        a = self._create_data()[1]
+        test = a.view()
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test._data, a._data)
+        assert_equal(test._mask, a._mask)
+
+    def test_view_to_type(self):
+        data, a, _ = self._create_data()
+        test = a.view(np.ndarray)
+        assert_(not isinstance(test, MaskedArray))
+        assert_equal(test, a._data)
+        assert_equal_records(test, data.view(a.dtype).squeeze())
+
+    def test_view_to_simple_dtype(self):
+        data, a, controlmask = self._create_data()
+        # View globally
+        test = a.view(float)
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, data.ravel())
+        assert_equal(test.mask, controlmask)
+
+    def test_view_to_flexible_dtype(self):
+        a = self._create_data()[1]
+
+        test = a.view([('A', float), ('B', float)])
+        assert_equal(test.mask.dtype.names, ('A', 'B'))
+        assert_equal(test['A'], a['a'])
+        assert_equal(test['B'], a['b'])
+
+        test = a[0].view([('A', float), ('B', float)])
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test.mask.dtype.names, ('A', 'B'))
+        assert_equal(test['A'], a['a'][0])
+        assert_equal(test['B'], a['b'][0])
+
+        test = a[-1].view([('A', float), ('B', float)])
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test.dtype.names, ('A', 'B'))
+        assert_equal(test['A'], a['a'][-1])
+        assert_equal(test['B'], a['b'][-1])
+
+    def test_view_to_subdtype(self):
+        data, a, controlmask = self._create_data()
+        # View globally
+        test = a.view((float, 2))
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, data)
+        assert_equal(test.mask, controlmask.reshape(-1, 2))
+        # View on 1 masked element
+        test = a[0].view((float, 2))
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, data[0])
+        assert_equal(test.mask, (1, 0))
+        # View on 1 unmasked element
+        test = a[-1].view((float, 2))
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, data[-1])
+
+    def test_view_to_dtype_and_type(self):
+        data, a, _ = self._create_data()
+
+        test = a.view((float, 2), np.recarray)
+        assert_equal(test, data)
+        assert_(isinstance(test, np.recarray))
+        assert_(not isinstance(test, MaskedArray))
+
+
+class TestOptionalArgs:
+    def test_ndarrayfuncs(self):
+        # test axis arg behaves the same as ndarray (including multiple axes)
+
+        d = np.arange(24.0).reshape((2, 3, 4))
+        m = np.zeros(24, dtype=bool).reshape((2, 3, 4))
+        # mask out last element of last dimension
+        m[:, :, -1] = True
+        a = np.ma.array(d, mask=m)
+
+        def testaxis(f, a, d):
+            numpy_f = numpy.__getattribute__(f)
+            ma_f = np.ma.__getattribute__(f)
+
+            # test axis arg
+            assert_equal(ma_f(a, axis=1)[..., :-1], numpy_f(d[..., :-1], axis=1))
+            assert_equal(ma_f(a, axis=(0, 1))[..., :-1],
+                         numpy_f(d[..., :-1], axis=(0, 1)))
+
+        def testkeepdims(f, a, d):
+            numpy_f = numpy.__getattribute__(f)
+            ma_f = np.ma.__getattribute__(f)
+
+            # test keepdims arg
+            assert_equal(ma_f(a, keepdims=True).shape,
+                         numpy_f(d, keepdims=True).shape)
+            assert_equal(ma_f(a, keepdims=False).shape,
+                         numpy_f(d, keepdims=False).shape)
+
+            # test both at once
+            assert_equal(ma_f(a, axis=1, keepdims=True)[..., :-1],
+                         numpy_f(d[..., :-1], axis=1, keepdims=True))
+            assert_equal(ma_f(a, axis=(0, 1), keepdims=True)[..., :-1],
+                         numpy_f(d[..., :-1], axis=(0, 1), keepdims=True))
+
+        for f in ['sum', 'prod', 'mean', 'var', 'std']:
+            testaxis(f, a, d)
+            testkeepdims(f, a, d)
+
+        for f in ['min', 'max']:
+            testaxis(f, a, d)
+
+        d = (np.arange(24).reshape((2, 3, 4)) % 2 == 0)
+        a = np.ma.array(d, mask=m)
+        for f in ['all', 'any']:
+            testaxis(f, a, d)
+            testkeepdims(f, a, d)
+
+    def test_count(self):
+        # test np.ma.count specially
+
+        d = np.arange(24.0).reshape((2, 3, 4))
+        m = np.zeros(24, dtype=bool).reshape((2, 3, 4))
+        m[:, 0, :] = True
+        a = np.ma.array(d, mask=m)
+
+        assert_equal(count(a), 16)
+        assert_equal(count(a, axis=1), 2 * ones((2, 4)))
+        assert_equal(count(a, axis=(0, 1)), 4 * ones((4,)))
+        assert_equal(count(a, keepdims=True), 16 * ones((1, 1, 1)))
+        assert_equal(count(a, axis=1, keepdims=True), 2 * ones((2, 1, 4)))
+        assert_equal(count(a, axis=(0, 1), keepdims=True), 4 * ones((1, 1, 4)))
+        assert_equal(count(a, axis=-2), 2 * ones((2, 4)))
+        assert_raises(ValueError, count, a, axis=(1, 1))
+        assert_raises(AxisError, count, a, axis=3)
+
+        # check the 'nomask' path
+        a = np.ma.array(d, mask=nomask)
+
+        assert_equal(count(a), 24)
+        assert_equal(count(a, axis=1), 3 * ones((2, 4)))
+        assert_equal(count(a, axis=(0, 1)), 6 * ones((4,)))
+        assert_equal(count(a, keepdims=True), 24 * ones((1, 1, 1)))
+        assert_equal(np.ndim(count(a, keepdims=True)), 3)
+        assert_equal(count(a, axis=1, keepdims=True), 3 * ones((2, 1, 4)))
+        assert_equal(count(a, axis=(0, 1), keepdims=True), 6 * ones((1, 1, 4)))
+        assert_equal(count(a, axis=-2), 3 * ones((2, 4)))
+        assert_raises(ValueError, count, a, axis=(1, 1))
+        assert_raises(AxisError, count, a, axis=3)
+
+        # check the 'masked' singleton
+        assert_equal(count(np.ma.masked), 0)
+
+        # check 0-d arrays do not allow axis > 0
+        assert_raises(AxisError, count, np.ma.array(1), axis=1)
+
+
+class TestMaskedConstant:
+    def _do_add_test(self, add):
+        # sanity check
+        assert_(add(np.ma.masked, 1) is np.ma.masked)
+
+        # now try with a vector
+        vector = np.array([1, 2, 3])
+        result = add(np.ma.masked, vector)
+
+        # lots of things could go wrong here
+        assert_(result is not np.ma.masked)
+        assert_(not isinstance(result, np.ma.core.MaskedConstant))
+        assert_equal(result.shape, vector.shape)
+        assert_equal(np.ma.getmask(result), np.ones(vector.shape, dtype=bool))
+
+    def test_ufunc(self):
+        self._do_add_test(np.add)
+
+    def test_operator(self):
+        self._do_add_test(lambda a, b: a + b)
+
+    def test_ctor(self):
+        m = np.ma.array(np.ma.masked)
+
+        # most importantly, we do not want to create a new MaskedConstant
+        # instance
+        assert_(not isinstance(m, np.ma.core.MaskedConstant))
+        assert_(m is not np.ma.masked)
+
+    def test_repr(self):
+        # copies should not exist, but if they do, it should be obvious that
+        # something is wrong
+        assert_equal(repr(np.ma.masked), 'masked')
+
+        # create a new instance in a weird way
+        masked2 = np.ma.MaskedArray.__new__(np.ma.core.MaskedConstant)
+        assert_not_equal(repr(masked2), 'masked')
+
+    def test_pickle(self):
+        from io import BytesIO
+
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            with BytesIO() as f:
+                pickle.dump(np.ma.masked, f, protocol=proto)
+                f.seek(0)
+                res = pickle.load(f)
+            assert_(res is np.ma.masked)
+
+    def test_copy(self):
+        # gh-9328
+        # copy is a no-op, like it is with np.True_
+        assert_equal(
+            np.ma.masked.copy() is np.ma.masked,
+            np.True_.copy() is np.True_)
+
+    def test__copy(self):
+        import copy
+        assert_(
+            copy.copy(np.ma.masked) is np.ma.masked)
+
+    def test_deepcopy(self):
+        import copy
+        assert_(
+            copy.deepcopy(np.ma.masked) is np.ma.masked)
+
+    def test_immutable(self):
+        orig = np.ma.masked
+        assert_raises(np.ma.core.MaskError, operator.setitem, orig, (), 1)
+        assert_raises(ValueError, operator.setitem, orig.data, (), 1)
+        assert_raises(ValueError, operator.setitem, orig.mask, (), False)
+
+        view = np.ma.masked.view(np.ma.MaskedArray)
+        assert_raises(ValueError, operator.setitem, view, (), 1)
+        assert_raises(ValueError, operator.setitem, view.data, (), 1)
+        assert_raises(ValueError, operator.setitem, view.mask, (), False)
+
+    def test_coercion_int(self):
+        a_i = np.zeros((), int)
+        assert_raises(MaskError, operator.setitem, a_i, (), np.ma.masked)
+        assert_raises(MaskError, int, np.ma.masked)
+
+    def test_coercion_float(self):
+        a_f = np.zeros((), float)
+        pytest.warns(UserWarning, operator.setitem, a_f, (), np.ma.masked)
+        assert_(np.isnan(a_f[()]))
+
+    @pytest.mark.xfail(reason="See gh-9750")
+    def test_coercion_unicode(self):
+        a_u = np.zeros((), 'U10')
+        a_u[()] = np.ma.masked
+        assert_equal(a_u[()], '--')
+
+    @pytest.mark.xfail(reason="See gh-9750")
+    def test_coercion_bytes(self):
+        a_b = np.zeros((), 'S10')
+        a_b[()] = np.ma.masked
+        assert_equal(a_b[()], b'--')
+
+    def test_subclass(self):
+        # https://github.com/astropy/astropy/issues/6645
+        class Sub(type(np.ma.masked)):
+            pass
+
+        a = Sub()
+        assert_(a is Sub())
+        assert_(a is not np.ma.masked)
+        assert_not_equal(repr(a), 'masked')
+
+    def test_attributes_readonly(self):
+        assert_raises(AttributeError, setattr, np.ma.masked, 'shape', (1,))
+        assert_raises(AttributeError, setattr, np.ma.masked, 'dtype', np.int64)
+
+
+class TestMaskedWhereAliases:
+
+    # TODO: Test masked_object, masked_equal, ...
+
+    def test_masked_values(self):
+        res = masked_values(np.array([-32768.0]), np.int16(-32768))
+        assert_equal(res.mask, [True])
+
+        res = masked_values(np.inf, np.inf)
+        assert_equal(res.mask, True)
+
+        res = np.ma.masked_values(np.inf, -np.inf)
+        assert_equal(res.mask, False)
+
+        res = np.ma.masked_values([1, 2, 3, 4], 5, shrink=True)
+        assert_(res.mask is np.ma.nomask)
+
+        res = np.ma.masked_values([1, 2, 3, 4], 5, shrink=False)
+        assert_equal(res.mask, [False] * 4)
+
+
+def test_masked_array():
+    a = np.ma.array([0, 1, 2, 3], mask=[0, 0, 1, 0])
+    assert_equal(np.argwhere(a), [[1], [3]])
+
+
+def test_masked_array_no_copy():
+    # check nomask array is updated in place
+    a = np.ma.array([1, 2, 3, 4])
+    _ = np.ma.masked_where(a == 3, a, copy=False)
+    assert_array_equal(a.mask, [False, False, True, False])
+    # check masked array is updated in place
+    a = np.ma.array([1, 2, 3, 4], mask=[1, 0, 0, 0])
+    _ = np.ma.masked_where(a == 3, a, copy=False)
+    assert_array_equal(a.mask, [True, False, True, False])
+    # check masked array with masked_invalid is updated in place
+    a = np.ma.array([np.inf, 1, 2, 3, 4])
+    _ = np.ma.masked_invalid(a, copy=False)
+    assert_array_equal(a.mask, [True, False, False, False, False])
+
+
+def test_append_masked_array():
+    a = np.ma.masked_equal([1, 2, 3], value=2)
+    b = np.ma.masked_equal([4, 3, 2], value=2)
+
+    result = np.ma.append(a, b)
+    expected_data = [1, 2, 3, 4, 3, 2]
+    expected_mask = [False, True, False, False, False, True]
+    assert_array_equal(result.data, expected_data)
+    assert_array_equal(result.mask, expected_mask)
+
+    a = np.ma.masked_all((2, 2))
+    b = np.ma.ones((3, 1))
+
+    result = np.ma.append(a, b)
+    expected_data = [1] * 3
+    expected_mask = [True] * 4 + [False] * 3
+    assert_array_equal(result.data[-3], expected_data)
+    assert_array_equal(result.mask, expected_mask)
+
+    result = np.ma.append(a, b, axis=None)
+    assert_array_equal(result.data[-3], expected_data)
+    assert_array_equal(result.mask, expected_mask)
+
+
+def test_append_masked_array_along_axis():
+    a = np.ma.masked_equal([1, 2, 3], value=2)
+    b = np.ma.masked_values([[4, 5, 6], [7, 8, 9]], 7)
+
+    # When `axis` is specified, `values` must have the correct shape.
+    assert_raises(ValueError, np.ma.append, a, b, axis=0)
+
+    result = np.ma.append(a[np.newaxis, :], b, axis=0)
+    expected = np.ma.arange(1, 10)
+    expected[[1, 6]] = np.ma.masked
+    expected = expected.reshape((3, 3))
+    assert_array_equal(result.data, expected.data)
+    assert_array_equal(result.mask, expected.mask)
+
+
+def test_default_fill_value_complex():
+    # regression test for Python 3, where 'unicode' was not defined
+    assert_(default_fill_value(1 + 1j) == 1.e20 + 0.0j)
+
+
+def test_string_dtype_fill_value_on_construction():
+    # Regression test for gh-29421: allow string fill_value on StringDType masked arrays
+    dt = np.dtypes.StringDType()
+    data = np.array(["A", "test", "variable", ""], dtype=dt)
+    mask = [True, False, True, True]
+    # Prior to the fix, this would TypeError; now it should succeed
+    arr = np.ma.MaskedArray(data, mask=mask, fill_value="FILL", dtype=dt)
+    assert isinstance(arr.fill_value, str)
+    assert arr.fill_value == "FILL"
+    filled = arr.filled()
+    # Masked positions should be replaced by 'FILL'
+    assert filled.tolist() == ["FILL", "test", "FILL", "FILL"]
+
+
+def test_string_dtype_default_fill_value():
+    # Regression test for gh-29421: default fill_value for StringDType is 'N/A'
+    dt = np.dtypes.StringDType()
+    data = np.array(['x', 'y', 'z'], dtype=dt)
+    # no fill_value passed → uses default_fill_value internally
+    arr = np.ma.MaskedArray(data, mask=[True, False, True], dtype=dt)
+    # ensure it’s stored as a Python str and equals the expected default
+    assert isinstance(arr.fill_value, str)
+    assert arr.fill_value == 'N/A'
+    # masked slots should be replaced by that default
+    assert arr.filled().tolist() == ['N/A', 'y', 'N/A']
+
+
+def test_string_dtype_fill_value_persists_through_slice():
+    # Regression test for gh-29421: .fill_value survives slicing/viewing
+    dt = np.dtypes.StringDType()
+    arr = np.ma.MaskedArray(
+        ['a', 'b', 'c'],
+        mask=[True, False, True],
+        dtype=dt
+    )
+    arr.fill_value = 'Z'
+    # slice triggers __array_finalize__
+    sub = arr[1:]
+    # the slice should carry the same fill_value and behavior
+    assert isinstance(sub.fill_value, str)
+    assert sub.fill_value == 'Z'
+    assert sub.filled().tolist() == ['b', 'Z']
+
+
+def test_setting_fill_value_attribute():
+    # Regression test for gh-29421: setting .fill_value post-construction works too
+    dt = np.dtypes.StringDType()
+    arr = np.ma.MaskedArray(
+        ["x", "longstring", "mid"], mask=[False, True, False], dtype=dt
+    )
+    # Setting the attribute should not raise
+    arr.fill_value = "Z"
+    assert arr.fill_value == "Z"
+    # And filled() should use the new fill_value
+    assert arr.filled()[0] == "x"
+    assert arr.filled()[1] == "Z"
+    assert arr.filled()[2] == "mid"
+
+
+def test_ufunc_with_output():
+    # check that giving an output argument always returns that output.
+    # Regression test for gh-8416.
+    x = array([1., 2., 3.], mask=[0, 0, 1])
+    y = np.add(x, 1., out=x)
+    assert_(y is x)
+
+
+def test_ufunc_with_out_varied():
+    """ Test that masked arrays are immune to gh-10459 """
+    # the mask of the output should not affect the result, however it is passed
+    a = array([ 1,  2,  3], mask=[1, 0, 0])
+    b = array([10, 20, 30], mask=[1, 0, 0])
+    out = array([ 0,  0,  0], mask=[0, 0, 1])
+    expected = array([11, 22, 33], mask=[1, 0, 0])
+
+    out_pos = out.copy()
+    res_pos = np.add(a, b, out_pos)
+
+    out_kw = out.copy()
+    res_kw = np.add(a, b, out=out_kw)
+
+    out_tup = out.copy()
+    res_tup = np.add(a, b, out=(out_tup,))
+
+    assert_equal(res_kw.mask,  expected.mask)
+    assert_equal(res_kw.data,  expected.data)
+    assert_equal(res_tup.mask, expected.mask)
+    assert_equal(res_tup.data, expected.data)
+    assert_equal(res_pos.mask, expected.mask)
+    assert_equal(res_pos.data, expected.data)
+
+
+def test_astype_mask_ordering():
+    descr = np.dtype([('v', int, 3), ('x', [('y', float)])])
+    x = array([
+        [([1, 2, 3], (1.0,)),  ([1, 2, 3], (2.0,))],
+        [([1, 2, 3], (3.0,)),  ([1, 2, 3], (4.0,))]], dtype=descr)
+    x[0]['v'][0] = np.ma.masked
+
+    x_a = x.astype(descr)
+    assert x_a.dtype.names == np.dtype(descr).names
+    assert x_a.mask.dtype.names == np.dtype(descr).names
+    assert_equal(x, x_a)
+
+    assert_(x is x.astype(x.dtype, copy=False))
+    assert_equal(type(x.astype(x.dtype, subok=False)), np.ndarray)
+
+    x_f = x.astype(x.dtype, order='F')
+    assert_(x_f.flags.f_contiguous)
+    assert_(x_f.mask.flags.f_contiguous)
+
+    # Also test the same indirectly, via np.array
+    x_a2 = np.array(x, dtype=descr, subok=True)
+    assert x_a2.dtype.names == np.dtype(descr).names
+    assert x_a2.mask.dtype.names == np.dtype(descr).names
+    assert_equal(x, x_a2)
+
+    assert_(x is np.array(x, dtype=descr, copy=None, subok=True))
+
+    x_f2 = np.array(x, dtype=x.dtype, order='F', subok=True)
+    assert_(x_f2.flags.f_contiguous)
+    assert_(x_f2.mask.flags.f_contiguous)
+
+
+@pytest.mark.parametrize('dt1', num_dts, ids=num_ids)
+@pytest.mark.parametrize('dt2', num_dts, ids=num_ids)
+@pytest.mark.filterwarnings('ignore::numpy.exceptions.ComplexWarning')
+def test_astype_basic(dt1, dt2):
+    # See gh-12070
+    src = np.ma.array(ones(3, dt1), fill_value=1)
+    dst = src.astype(dt2)
+
+    assert_(src.fill_value == 1)
+    assert_(src.dtype == dt1)
+    assert_(src.fill_value.dtype == dt1)
+
+    assert_(dst.fill_value == 1)
+    assert_(dst.dtype == dt2)
+    assert_(dst.fill_value.dtype == dt2)
+
+    assert_equal(src, dst)
+
+
+def test_fieldless_void():
+    dt = np.dtype([])  # a void dtype with no fields
+    x = np.empty(4, dt)
+
+    # these arrays contain no values, so there's little to test - but this
+    # shouldn't crash
+    mx = np.ma.array(x)
+    assert_equal(mx.dtype, x.dtype)
+    assert_equal(mx.shape, x.shape)
+
+    mx = np.ma.array(x, mask=x)
+    assert_equal(mx.dtype, x.dtype)
+    assert_equal(mx.shape, x.shape)
+
+
+def test_mask_shape_assignment_does_not_break_masked():
+    a = np.ma.masked
+    b = np.ma.array(1, mask=a.mask)
+    b.shape = (1,)
+    assert_equal(a.mask.shape, ())
+
+
+@pytest.mark.skipif(sys.flags.optimize > 1,
+                    reason="no docstrings present to inspect when PYTHONOPTIMIZE/Py_OptimizeFlag > 1")  # noqa: E501
+def test_doc_note():
+    def method(self):
+        """This docstring
+
+        Has multiple lines
+
+        And notes
+
+        Notes
+        -----
+        original note
+        """
+        pass
+
+    expected_doc = """This docstring
+
+Has multiple lines
+
+And notes
+
+Notes
+-----
+note
+
+original note"""
+
+    assert_equal(np.ma.core.doc_note(method.__doc__, "note"), expected_doc)
+
+
+def test_gh_22556():
+    source = np.ma.array([0, [0, 1, 2]], dtype=object)
+    deepcopy = copy.deepcopy(source)
+    deepcopy[1].append('this should not appear in source')
+    assert len(source[1]) == 3
+
+
+def test_gh_21022():
+    # testing for absence of reported error
+    source = np.ma.masked_array(data=[-1, -1], mask=True, dtype=np.float64)
+    axis = np.array(0)
+    result = np.prod(source, axis=axis, keepdims=False)
+    result = np.ma.masked_array(result,
+                                mask=np.ones(result.shape, dtype=np.bool))
+    array = np.ma.masked_array(data=-1, mask=True, dtype=np.float64)
+    copy.deepcopy(array)
+    copy.deepcopy(result)
+
+
+def test_deepcopy_2d_obj():
+    source = np.ma.array([[0, "dog"],
+                          [1, 1],
+                          [[1, 2], "cat"]],
+                        mask=[[0, 1],
+                              [0, 0],
+                              [0, 0]],
+                        dtype=object)
+    deepcopy = copy.deepcopy(source)
+    deepcopy[2, 0].extend(['this should not appear in source', 3])
+    assert len(source[2, 0]) == 2
+    assert len(deepcopy[2, 0]) == 4
+    assert_equal(deepcopy._mask, source._mask)
+    deepcopy._mask[0, 0] = 1
+    assert source._mask[0, 0] == 0
+
+
+def test_deepcopy_0d_obj():
+    source = np.ma.array(0, mask=[0], dtype=object)
+    deepcopy = copy.deepcopy(source)
+    deepcopy[...] = 17
+    assert_equal(source, 0)
+    assert_equal(deepcopy, 17)
+
+
+def test_uint_fill_value_and_filled():
+    # See also gh-27269
+    a = np.ma.MaskedArray([1, 1], [True, False], dtype="uint16")
+    # the fill value should likely not be 99999, but for now guarantee it:
+    assert a.fill_value == 999999
+    # However, it's type is uint:
+    assert a.fill_value.dtype.kind == "u"
+    # And this ensures things like filled work:
+    np.testing.assert_array_equal(
+        a.filled(), np.array([999999, 1]).astype("uint16"), strict=True)
+
+
+@pytest.mark.parametrize(
+    ('fn', 'signature'),
+    [
+        (np.ma.nonzero, "(a)"),
+        (np.ma.anomalies, "(a, axis=None, dtype=None)"),
+        (np.ma.cumsum, "(a, axis=None, dtype=None, out=None)"),
+        (np.ma.compress, "(condition, a, axis=None, out=None)"),
+    ]
+)
+def test_frommethod_signature(fn, signature):
+    assert str(inspect.signature(fn)) == signature
+
+
+@pytest.mark.parametrize(
+    ('fn', 'signature'),
+    [
+        (
+            np.ma.empty,
+            (
+                "(shape, dtype=None, order='C', *, device=None, like=None, "
+                "fill_value=None, hardmask=False)"
+            ),
+        ),
+        (
+            np.ma.empty_like,
+            (
+                "(prototype, /, dtype=None, order='K', subok=True, shape=None, *, "
+                "device=None)"
+            ),
+        ),
+        (np.ma.squeeze, "(a, axis=None, *, fill_value=None, hardmask=False)"),
+        (
+            np.ma.identity,
+            "(n, dtype=None, *, like=None, fill_value=None, hardmask=False)",
+        ),
+    ]
+)
+def test_convert2ma_signature(fn, signature):
+    assert str(inspect.signature(fn)) == signature
+    assert fn.__module__ == 'numpy.ma.core'
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_deprecations.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_deprecations.py
new file mode 100644
index 0000000000000000000000000000000000000000..2d55e5e0069dc3523df581a3dc11f9d305137285
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_deprecations.py
@@ -0,0 +1,65 @@
+"""Test deprecation and future warnings.
+
+"""
+import pytest
+
+import numpy as np
+from numpy.ma.core import MaskedArrayFutureWarning
+from numpy.ma.testutils import assert_equal
+
+
+class TestArgsort:
+    """ gh-8701 """
+    def _test_base(self, argsort, cls):
+        arr_0d = np.array(1).view(cls)
+        argsort(arr_0d)
+
+        arr_1d = np.array([1, 2, 3]).view(cls)
+        argsort(arr_1d)
+
+        # argsort has a bad default for >1d arrays
+        arr_2d = np.array([[1, 2], [3, 4]]).view(cls)
+        result = pytest.warns(
+            np.ma.core.MaskedArrayFutureWarning, argsort, arr_2d)
+        assert_equal(result, argsort(arr_2d, axis=None))
+
+        # should be no warnings for explicitly specifying it
+        argsort(arr_2d, axis=None)
+        argsort(arr_2d, axis=-1)
+
+    def test_function_ndarray(self):
+        return self._test_base(np.ma.argsort, np.ndarray)
+
+    def test_function_maskedarray(self):
+        return self._test_base(np.ma.argsort, np.ma.MaskedArray)
+
+    def test_method(self):
+        return self._test_base(np.ma.MaskedArray.argsort, np.ma.MaskedArray)
+
+
+class TestMinimumMaximum:
+
+    def test_axis_default(self):
+        # NumPy 1.13, 2017-05-06
+
+        data1d = np.ma.arange(6)
+        data2d = data1d.reshape(2, 3)
+
+        ma_min = np.ma.minimum.reduce
+        ma_max = np.ma.maximum.reduce
+
+        # check that the default axis is still None, but warns on 2d arrays
+        result = pytest.warns(MaskedArrayFutureWarning, ma_max, data2d)
+        assert_equal(result, ma_max(data2d, axis=None))
+
+        result = pytest.warns(MaskedArrayFutureWarning, ma_min, data2d)
+        assert_equal(result, ma_min(data2d, axis=None))
+
+        # no warnings on 1d, as both new and old defaults are equivalent
+        result = ma_min(data1d)
+        assert_equal(result, ma_min(data1d, axis=None))
+        assert_equal(result, ma_min(data1d, axis=0))
+
+        result = ma_max(data1d)
+        assert_equal(result, ma_max(data1d, axis=None))
+        assert_equal(result, ma_max(data1d, axis=0))
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_extras.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_extras.py
new file mode 100644
index 0000000000000000000000000000000000000000..b3d1e63ec814270baf68189e6e5e0e609e5a66cc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_extras.py
@@ -0,0 +1,1945 @@
+"""Tests suite for MaskedArray.
+Adapted from the original test_ma by Pierre Gerard-Marchant
+
+:author: Pierre Gerard-Marchant
+:contact: pierregm_at_uga_dot_edu
+
+"""
+import inspect
+import itertools
+
+import pytest
+
+import numpy as np
+from numpy._core.numeric import normalize_axis_tuple
+from numpy.ma.core import (
+    MaskedArray,
+    arange,
+    array,
+    count,
+    getmaskarray,
+    masked,
+    masked_array,
+    nomask,
+    ones,
+    shape,
+    zeros,
+)
+from numpy.ma.extras import (
+    _covhelper,
+    apply_along_axis,
+    apply_over_axes,
+    atleast_1d,
+    atleast_2d,
+    atleast_3d,
+    average,
+    clump_masked,
+    clump_unmasked,
+    compress_nd,
+    compress_rowcols,
+    corrcoef,
+    cov,
+    diagflat,
+    dot,
+    ediff1d,
+    flatnotmasked_contiguous,
+    in1d,
+    intersect1d,
+    isin,
+    mask_rowcols,
+    masked_all,
+    masked_all_like,
+    median,
+    mr_,
+    ndenumerate,
+    notmasked_contiguous,
+    notmasked_edges,
+    polyfit,
+    setdiff1d,
+    setxor1d,
+    stack,
+    union1d,
+    unique,
+    vstack,
+)
+from numpy.ma.testutils import (
+    assert_,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+)
+
+
+class TestGeneric:
+    #
+    def test_masked_all(self):
+        # Tests masked_all
+        # Standard dtype
+        test = masked_all((2,), dtype=float)
+        control = array([1, 1], mask=[1, 1], dtype=float)
+        assert_equal(test, control)
+        # Flexible dtype
+        dt = np.dtype({'names': ['a', 'b'], 'formats': ['f', 'f']})
+        test = masked_all((2,), dtype=dt)
+        control = array([(0, 0), (0, 0)], mask=[(1, 1), (1, 1)], dtype=dt)
+        assert_equal(test, control)
+        test = masked_all((2, 2), dtype=dt)
+        control = array([[(0, 0), (0, 0)], [(0, 0), (0, 0)]],
+                        mask=[[(1, 1), (1, 1)], [(1, 1), (1, 1)]],
+                        dtype=dt)
+        assert_equal(test, control)
+        # Nested dtype
+        dt = np.dtype([('a', 'f'), ('b', [('ba', 'f'), ('bb', 'f')])])
+        test = masked_all((2,), dtype=dt)
+        control = array([(1, (1, 1)), (1, (1, 1))],
+                        mask=[(1, (1, 1)), (1, (1, 1))], dtype=dt)
+        assert_equal(test, control)
+        test = masked_all((2,), dtype=dt)
+        control = array([(1, (1, 1)), (1, (1, 1))],
+                        mask=[(1, (1, 1)), (1, (1, 1))], dtype=dt)
+        assert_equal(test, control)
+        test = masked_all((1, 1), dtype=dt)
+        control = array([[(1, (1, 1))]], mask=[[(1, (1, 1))]], dtype=dt)
+        assert_equal(test, control)
+
+    def test_masked_all_with_object_nested(self):
+        # Test masked_all works with nested array with dtype of an 'object'
+        # refers to issue #15895
+        my_dtype = np.dtype([('b', ([('c', object)], (1,)))])
+        masked_arr = np.ma.masked_all((1,), my_dtype)
+
+        assert_equal(type(masked_arr['b']), np.ma.core.MaskedArray)
+        assert_equal(type(masked_arr['b']['c']), np.ma.core.MaskedArray)
+        assert_equal(len(masked_arr['b']['c']), 1)
+        assert_equal(masked_arr['b']['c'].shape, (1, 1))
+        assert_equal(masked_arr['b']['c']._fill_value.shape, ())
+
+    def test_masked_all_with_object(self):
+        # same as above except that the array is not nested
+        my_dtype = np.dtype([('b', (object, (1,)))])
+        masked_arr = np.ma.masked_all((1,), my_dtype)
+
+        assert_equal(type(masked_arr['b']), np.ma.core.MaskedArray)
+        assert_equal(len(masked_arr['b']), 1)
+        assert_equal(masked_arr['b'].shape, (1, 1))
+        assert_equal(masked_arr['b']._fill_value.shape, ())
+
+    def test_masked_all_like(self):
+        # Tests masked_all
+        # Standard dtype
+        base = array([1, 2], dtype=float)
+        test = masked_all_like(base)
+        control = array([1, 1], mask=[1, 1], dtype=float)
+        assert_equal(test, control)
+        # Flexible dtype
+        dt = np.dtype({'names': ['a', 'b'], 'formats': ['f', 'f']})
+        base = array([(0, 0), (0, 0)], mask=[(1, 1), (1, 1)], dtype=dt)
+        test = masked_all_like(base)
+        control = array([(10, 10), (10, 10)], mask=[(1, 1), (1, 1)], dtype=dt)
+        assert_equal(test, control)
+        # Nested dtype
+        dt = np.dtype([('a', 'f'), ('b', [('ba', 'f'), ('bb', 'f')])])
+        control = array([(1, (1, 1)), (1, (1, 1))],
+                        mask=[(1, (1, 1)), (1, (1, 1))], dtype=dt)
+        test = masked_all_like(control)
+        assert_equal(test, control)
+
+    def check_clump(self, f):
+        for i in range(1, 7):
+            for j in range(2**i):
+                k = np.arange(i, dtype=int)
+                ja = np.full(i, j, dtype=int)
+                a = masked_array(2**k)
+                a.mask = (ja & (2**k)) != 0
+                s = 0
+                for sl in f(a):
+                    s += a.data[sl].sum()
+                if f == clump_unmasked:
+                    assert_equal(a.compressed().sum(), s)
+                else:
+                    a.mask = ~a.mask
+                    assert_equal(a.compressed().sum(), s)
+
+    def test_clump_masked(self):
+        # Test clump_masked
+        a = masked_array(np.arange(10))
+        a[[0, 1, 2, 6, 8, 9]] = masked
+        #
+        test = clump_masked(a)
+        control = [slice(0, 3), slice(6, 7), slice(8, 10)]
+        assert_equal(test, control)
+
+        self.check_clump(clump_masked)
+
+    def test_clump_unmasked(self):
+        # Test clump_unmasked
+        a = masked_array(np.arange(10))
+        a[[0, 1, 2, 6, 8, 9]] = masked
+        test = clump_unmasked(a)
+        control = [slice(3, 6), slice(7, 8), ]
+        assert_equal(test, control)
+
+        self.check_clump(clump_unmasked)
+
+    def test_flatnotmasked_contiguous(self):
+        # Test flatnotmasked_contiguous
+        a = arange(10)
+        # No mask
+        test = flatnotmasked_contiguous(a)
+        assert_equal(test, [slice(0, a.size)])
+        # mask of all false
+        a.mask = np.zeros(10, dtype=bool)
+        assert_equal(test, [slice(0, a.size)])
+        # Some mask
+        a[(a < 3) | (a > 8) | (a == 5)] = masked
+        test = flatnotmasked_contiguous(a)
+        assert_equal(test, [slice(3, 5), slice(6, 9)])
+        #
+        a[:] = masked
+        test = flatnotmasked_contiguous(a)
+        assert_equal(test, [])
+
+
+class TestAverage:
+    # Several tests of average. Why so many ? Good point...
+    def test_testAverage1(self):
+        # Test of average.
+        ott = array([0., 1., 2., 3.], mask=[True, False, False, False])
+        assert_equal(2.0, average(ott, axis=0))
+        assert_equal(2.0, average(ott, weights=[1., 1., 2., 1.]))
+        result, wts = average(ott, weights=[1., 1., 2., 1.], returned=True)
+        assert_equal(2.0, result)
+        assert_(wts == 4.0)
+        ott[:] = masked
+        assert_equal(average(ott, axis=0).mask, [True])
+        ott = array([0., 1., 2., 3.], mask=[True, False, False, False])
+        ott = ott.reshape(2, 2)
+        ott[:, 1] = masked
+        assert_equal(average(ott, axis=0), [2.0, 0.0])
+        assert_equal(average(ott, axis=1).mask[0], [True])
+        assert_equal([2., 0.], average(ott, axis=0))
+        result, wts = average(ott, axis=0, returned=True)
+        assert_equal(wts, [1., 0.])
+
+    def test_testAverage2(self):
+        # More tests of average.
+        w1 = [0, 1, 1, 1, 1, 0]
+        w2 = [[0, 1, 1, 1, 1, 0], [1, 0, 0, 0, 0, 1]]
+        x = arange(6, dtype=np.float64)
+        assert_equal(average(x, axis=0), 2.5)
+        assert_equal(average(x, axis=0, weights=w1), 2.5)
+        y = array([arange(6, dtype=np.float64), 2.0 * arange(6)])
+        assert_equal(average(y, None), np.add.reduce(np.arange(6)) * 3. / 12.)
+        assert_equal(average(y, axis=0), np.arange(6) * 3. / 2.)
+        assert_equal(average(y, axis=1),
+                     [average(x, axis=0), average(x, axis=0) * 2.0])
+        assert_equal(average(y, None, weights=w2), 20. / 6.)
+        assert_equal(average(y, axis=0, weights=w2),
+                     [0., 1., 2., 3., 4., 10.])
+        assert_equal(average(y, axis=1),
+                     [average(x, axis=0), average(x, axis=0) * 2.0])
+        m1 = zeros(6)
+        m2 = [0, 0, 1, 1, 0, 0]
+        m3 = [[0, 0, 1, 1, 0, 0], [0, 1, 1, 1, 1, 0]]
+        m4 = ones(6)
+        m5 = [0, 1, 1, 1, 1, 1]
+        assert_equal(average(masked_array(x, m1), axis=0), 2.5)
+        assert_equal(average(masked_array(x, m2), axis=0), 2.5)
+        assert_equal(average(masked_array(x, m4), axis=0).mask, [True])
+        assert_equal(average(masked_array(x, m5), axis=0), 0.0)
+        assert_equal(count(average(masked_array(x, m4), axis=0)), 0)
+        z = masked_array(y, m3)
+        assert_equal(average(z, None), 20. / 6.)
+        assert_equal(average(z, axis=0), [0., 1., 99., 99., 4.0, 7.5])
+        assert_equal(average(z, axis=1), [2.5, 5.0])
+        assert_equal(average(z, axis=0, weights=w2),
+                     [0., 1., 99., 99., 4.0, 10.0])
+
+    def test_testAverage3(self):
+        # Yet more tests of average!
+        a = arange(6)
+        b = arange(6) * 3
+        r1, w1 = average([[a, b], [b, a]], axis=1, returned=True)
+        assert_equal(shape(r1), shape(w1))
+        assert_equal(r1.shape, w1.shape)
+        r2, w2 = average(ones((2, 2, 3)), axis=0, weights=[3, 1], returned=True)
+        assert_equal(shape(w2), shape(r2))
+        r2, w2 = average(ones((2, 2, 3)), returned=True)
+        assert_equal(shape(w2), shape(r2))
+        r2, w2 = average(ones((2, 2, 3)), weights=ones((2, 2, 3)), returned=True)
+        assert_equal(shape(w2), shape(r2))
+        a2d = array([[1, 2], [0, 4]], float)
+        a2dm = masked_array(a2d, [[False, False], [True, False]])
+        a2da = average(a2d, axis=0)
+        assert_equal(a2da, [0.5, 3.0])
+        a2dma = average(a2dm, axis=0)
+        assert_equal(a2dma, [1.0, 3.0])
+        a2dma = average(a2dm, axis=None)
+        assert_equal(a2dma, 7. / 3.)
+        a2dma = average(a2dm, axis=1)
+        assert_equal(a2dma, [1.5, 4.0])
+
+    def test_testAverage4(self):
+        # Test that `keepdims` works with average
+        x = np.array([2, 3, 4]).reshape(3, 1)
+        b = np.ma.array(x, mask=[[False], [False], [True]])
+        w = np.array([4, 5, 6]).reshape(3, 1)
+        actual = average(b, weights=w, axis=1, keepdims=True)
+        desired = masked_array([[2.], [3.], [4.]], [[False], [False], [True]])
+        assert_equal(actual, desired)
+
+    def test_weight_and_input_dims_different(self):
+        # this test mirrors a test for np.average()
+        # in lib/test/test_function_base.py
+        y = np.arange(12).reshape(2, 2, 3)
+        w = np.array([0., 0., 1., .5, .5, 0., 0., .5, .5, 1., 0., 0.])\
+            .reshape(2, 2, 3)
+
+        m = np.full((2, 2, 3), False)
+        yma = np.ma.array(y, mask=m)
+        subw0 = w[:, :, 0]
+
+        actual = average(yma, axis=(0, 1), weights=subw0)
+        desired = masked_array([7., 8., 9.], mask=[False, False, False])
+        assert_almost_equal(actual, desired)
+
+        m = np.full((2, 2, 3), False)
+        m[:, :, 0] = True
+        m[0, 0, 1] = True
+        yma = np.ma.array(y, mask=m)
+        actual = average(yma, axis=(0, 1), weights=subw0)
+        desired = masked_array(
+            [np.nan, 8., 9.],
+            mask=[True, False, False])
+        assert_almost_equal(actual, desired)
+
+        m = np.full((2, 2, 3), False)
+        yma = np.ma.array(y, mask=m)
+
+        subw1 = w[1, :, :]
+        actual = average(yma, axis=(1, 2), weights=subw1)
+        desired = masked_array([2.25, 8.25], mask=[False, False])
+        assert_almost_equal(actual, desired)
+
+        # here the weights have the wrong shape for the specified axes
+        with pytest.raises(
+                ValueError,
+                match="Shape of weights must be consistent with "
+                      "shape of a along specified axis"):
+            average(yma, axis=(0, 1, 2), weights=subw0)
+
+        with pytest.raises(
+                ValueError,
+                match="Shape of weights must be consistent with "
+                      "shape of a along specified axis"):
+            average(yma, axis=(0, 1), weights=subw1)
+
+        # swapping the axes should be same as transposing weights
+        actual = average(yma, axis=(1, 0), weights=subw0)
+        desired = average(yma, axis=(0, 1), weights=subw0.T)
+        assert_almost_equal(actual, desired)
+
+    def test_onintegers_with_mask(self):
+        # Test average on integers with mask
+        a = average(array([1, 2]))
+        assert_equal(a, 1.5)
+        a = average(array([1, 2, 3, 4], mask=[False, False, True, True]))
+        assert_equal(a, 1.5)
+
+    def test_complex(self):
+        # Test with complex data.
+        # (Regression test for https://github.com/numpy/numpy/issues/2684)
+        mask = np.array([[0, 0, 0, 1, 0],
+                         [0, 1, 0, 0, 0]], dtype=bool)
+        a = masked_array([[0, 1 + 2j, 3 + 4j, 5 + 6j, 7 + 8j],
+                          [9j, 0 + 1j, 2 + 3j, 4 + 5j, 7 + 7j]],
+                         mask=mask)
+
+        av = average(a)
+        expected = np.average(a.compressed())
+        assert_almost_equal(av.real, expected.real)
+        assert_almost_equal(av.imag, expected.imag)
+
+        av0 = average(a, axis=0)
+        expected0 = average(a.real, axis=0) + average(a.imag, axis=0) * 1j
+        assert_almost_equal(av0.real, expected0.real)
+        assert_almost_equal(av0.imag, expected0.imag)
+
+        av1 = average(a, axis=1)
+        expected1 = average(a.real, axis=1) + average(a.imag, axis=1) * 1j
+        assert_almost_equal(av1.real, expected1.real)
+        assert_almost_equal(av1.imag, expected1.imag)
+
+        # Test with the 'weights' argument.
+        wts = np.array([[0.5, 1.0, 2.0, 1.0, 0.5],
+                        [1.0, 1.0, 1.0, 1.0, 1.0]])
+        wav = average(a, weights=wts)
+        expected = np.average(a.compressed(), weights=wts[~mask])
+        assert_almost_equal(wav.real, expected.real)
+        assert_almost_equal(wav.imag, expected.imag)
+
+        wav0 = average(a, weights=wts, axis=0)
+        expected0 = (average(a.real, weights=wts, axis=0) +
+                     average(a.imag, weights=wts, axis=0) * 1j)
+        assert_almost_equal(wav0.real, expected0.real)
+        assert_almost_equal(wav0.imag, expected0.imag)
+
+        wav1 = average(a, weights=wts, axis=1)
+        expected1 = (average(a.real, weights=wts, axis=1) +
+                     average(a.imag, weights=wts, axis=1) * 1j)
+        assert_almost_equal(wav1.real, expected1.real)
+        assert_almost_equal(wav1.imag, expected1.imag)
+
+    @pytest.mark.parametrize(
+        'x, axis, expected_avg, weights, expected_wavg, expected_wsum',
+        [([1, 2, 3], None, [2.0], [3, 4, 1], [1.75], [8.0]),
+         ([[1, 2, 5], [1, 6, 11]], 0, [[1.0, 4.0, 8.0]],
+          [1, 3], [[1.0, 5.0, 9.5]], [[4, 4, 4]])],
+    )
+    def test_basic_keepdims(self, x, axis, expected_avg,
+                            weights, expected_wavg, expected_wsum):
+        avg = np.ma.average(x, axis=axis, keepdims=True)
+        assert avg.shape == np.shape(expected_avg)
+        assert_array_equal(avg, expected_avg)
+
+        wavg = np.ma.average(x, axis=axis, weights=weights, keepdims=True)
+        assert wavg.shape == np.shape(expected_wavg)
+        assert_array_equal(wavg, expected_wavg)
+
+        wavg, wsum = np.ma.average(x, axis=axis, weights=weights,
+                                   returned=True, keepdims=True)
+        assert wavg.shape == np.shape(expected_wavg)
+        assert_array_equal(wavg, expected_wavg)
+        assert wsum.shape == np.shape(expected_wsum)
+        assert_array_equal(wsum, expected_wsum)
+
+    def test_masked_weights(self):
+        # Test with masked weights.
+        # (Regression test for https://github.com/numpy/numpy/issues/10438)
+        a = np.ma.array(np.arange(9).reshape(3, 3),
+                        mask=[[1, 0, 0], [1, 0, 0], [0, 0, 0]])
+        weights_unmasked = masked_array([5, 28, 31], mask=False)
+        weights_masked = masked_array([5, 28, 31], mask=[1, 0, 0])
+
+        avg_unmasked = average(a, axis=0,
+                               weights=weights_unmasked, returned=False)
+        expected_unmasked = np.array([6.0, 5.21875, 6.21875])
+        assert_almost_equal(avg_unmasked, expected_unmasked)
+
+        avg_masked = average(a, axis=0, weights=weights_masked, returned=False)
+        expected_masked = np.array([6.0, 5.576271186440678, 6.576271186440678])
+        assert_almost_equal(avg_masked, expected_masked)
+
+        # weights should be masked if needed
+        # depending on the array mask. This is to avoid summing
+        # masked nan or other values that are not cancelled by a zero
+        a = np.ma.array([1.0,   2.0,   3.0,  4.0],
+                   mask=[False, False, True, True])
+        avg_unmasked = average(a, weights=[1, 1, 1, np.nan])
+
+        assert_almost_equal(avg_unmasked, 1.5)
+
+        a = np.ma.array([
+            [1.0, 2.0, 3.0, 4.0],
+            [5.0, 6.0, 7.0, 8.0],
+            [9.0, 1.0, 2.0, 3.0],
+        ], mask=[
+            [False, True, True, False],
+            [True, False, True, True],
+            [True, False, True, False],
+        ])
+
+        avg_masked = np.ma.average(a, weights=[1, np.nan, 1], axis=0)
+        avg_expected = np.ma.array([1.0, np.nan, np.nan, 3.5],
+                              mask=[False, True, True, False])
+
+        assert_almost_equal(avg_masked, avg_expected)
+        assert_equal(avg_masked.mask, avg_expected.mask)
+
+
+class TestConcatenator:
+    # Tests for mr_, the equivalent of r_ for masked arrays.
+
+    def test_1d(self):
+        # Tests mr_ on 1D arrays.
+        assert_array_equal(mr_[1, 2, 3, 4, 5, 6], array([1, 2, 3, 4, 5, 6]))
+        b = ones(5)
+        m = [1, 0, 0, 0, 0]
+        d = masked_array(b, mask=m)
+        c = mr_[d, 0, 0, d]
+        assert_(isinstance(c, MaskedArray))
+        assert_array_equal(c, [1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1])
+        assert_array_equal(c.mask, mr_[m, 0, 0, m])
+
+    def test_2d(self):
+        # Tests mr_ on 2D arrays.
+        a_1 = np.random.rand(5, 5)
+        a_2 = np.random.rand(5, 5)
+        m_1 = np.round(np.random.rand(5, 5), 0)
+        m_2 = np.round(np.random.rand(5, 5), 0)
+        b_1 = masked_array(a_1, mask=m_1)
+        b_2 = masked_array(a_2, mask=m_2)
+        # append columns
+        d = mr_['1', b_1, b_2]
+        assert_(d.shape == (5, 10))
+        assert_array_equal(d[:, :5], b_1)
+        assert_array_equal(d[:, 5:], b_2)
+        assert_array_equal(d.mask, np.r_['1', m_1, m_2])
+        d = mr_[b_1, b_2]
+        assert_(d.shape == (10, 5))
+        assert_array_equal(d[:5, :], b_1)
+        assert_array_equal(d[5:, :], b_2)
+        assert_array_equal(d.mask, np.r_[m_1, m_2])
+
+    def test_masked_constant(self):
+        actual = mr_[np.ma.masked, 1]
+        assert_equal(actual.mask, [True, False])
+        assert_equal(actual.data[1], 1)
+
+        actual = mr_[[1, 2], np.ma.masked]
+        assert_equal(actual.mask, [False, False, True])
+        assert_equal(actual.data[:2], [1, 2])
+
+
+class TestNotMasked:
+    # Tests notmasked_edges and notmasked_contiguous.
+
+    def test_edges(self):
+        # Tests unmasked_edges
+        data = masked_array(np.arange(25).reshape(5, 5),
+                            mask=[[0, 0, 1, 0, 0],
+                                  [0, 0, 0, 1, 1],
+                                  [1, 1, 0, 0, 0],
+                                  [0, 0, 0, 0, 0],
+                                  [1, 1, 1, 0, 0]],)
+        test = notmasked_edges(data, None)
+        assert_equal(test, [0, 24])
+        test = notmasked_edges(data, 0)
+        assert_equal(test[0], [(0, 0, 1, 0, 0), (0, 1, 2, 3, 4)])
+        assert_equal(test[1], [(3, 3, 3, 4, 4), (0, 1, 2, 3, 4)])
+        test = notmasked_edges(data, 1)
+        assert_equal(test[0], [(0, 1, 2, 3, 4), (0, 0, 2, 0, 3)])
+        assert_equal(test[1], [(0, 1, 2, 3, 4), (4, 2, 4, 4, 4)])
+        #
+        test = notmasked_edges(data.data, None)
+        assert_equal(test, [0, 24])
+        test = notmasked_edges(data.data, 0)
+        assert_equal(test[0], [(0, 0, 0, 0, 0), (0, 1, 2, 3, 4)])
+        assert_equal(test[1], [(4, 4, 4, 4, 4), (0, 1, 2, 3, 4)])
+        test = notmasked_edges(data.data, -1)
+        assert_equal(test[0], [(0, 1, 2, 3, 4), (0, 0, 0, 0, 0)])
+        assert_equal(test[1], [(0, 1, 2, 3, 4), (4, 4, 4, 4, 4)])
+        #
+        data[-2] = masked
+        test = notmasked_edges(data, 0)
+        assert_equal(test[0], [(0, 0, 1, 0, 0), (0, 1, 2, 3, 4)])
+        assert_equal(test[1], [(1, 1, 2, 4, 4), (0, 1, 2, 3, 4)])
+        test = notmasked_edges(data, -1)
+        assert_equal(test[0], [(0, 1, 2, 4), (0, 0, 2, 3)])
+        assert_equal(test[1], [(0, 1, 2, 4), (4, 2, 4, 4)])
+
+    def test_contiguous(self):
+        # Tests notmasked_contiguous
+        a = masked_array(np.arange(24).reshape(3, 8),
+                         mask=[[0, 0, 0, 0, 1, 1, 1, 1],
+                               [1, 1, 1, 1, 1, 1, 1, 1],
+                               [0, 0, 0, 0, 0, 0, 1, 0]])
+        tmp = notmasked_contiguous(a, None)
+        assert_equal(tmp, [
+            slice(0, 4, None),
+            slice(16, 22, None),
+            slice(23, 24, None)
+        ])
+
+        tmp = notmasked_contiguous(a, 0)
+        assert_equal(tmp, [
+            [slice(0, 1, None), slice(2, 3, None)],
+            [slice(0, 1, None), slice(2, 3, None)],
+            [slice(0, 1, None), slice(2, 3, None)],
+            [slice(0, 1, None), slice(2, 3, None)],
+            [slice(2, 3, None)],
+            [slice(2, 3, None)],
+            [],
+            [slice(2, 3, None)]
+        ])
+        #
+        tmp = notmasked_contiguous(a, 1)
+        assert_equal(tmp, [
+            [slice(0, 4, None)],
+            [],
+            [slice(0, 6, None), slice(7, 8, None)]
+        ])
+
+
+class TestCompressFunctions:
+
+    def test_compress_nd(self):
+        # Tests compress_nd
+        x = np.array(list(range(3 * 4 * 5))).reshape(3, 4, 5)
+        m = np.zeros((3, 4, 5)).astype(bool)
+        m[1, 1, 1] = True
+        x = array(x, mask=m)
+
+        # axis=None
+        a = compress_nd(x)
+        assert_equal(a, [[[ 0,  2,  3,  4],
+                          [10, 12, 13, 14],
+                          [15, 17, 18, 19]],
+                         [[40, 42, 43, 44],
+                          [50, 52, 53, 54],
+                          [55, 57, 58, 59]]])
+
+        # axis=0
+        a = compress_nd(x, 0)
+        assert_equal(a, [[[ 0,  1,  2,  3,  4],
+                          [ 5,  6,  7,  8,  9],
+                          [10, 11, 12, 13, 14],
+                          [15, 16, 17, 18, 19]],
+                         [[40, 41, 42, 43, 44],
+                          [45, 46, 47, 48, 49],
+                          [50, 51, 52, 53, 54],
+                          [55, 56, 57, 58, 59]]])
+
+        # axis=1
+        a = compress_nd(x, 1)
+        assert_equal(a, [[[ 0,  1,  2,  3,  4],
+                          [10, 11, 12, 13, 14],
+                          [15, 16, 17, 18, 19]],
+                         [[20, 21, 22, 23, 24],
+                          [30, 31, 32, 33, 34],
+                          [35, 36, 37, 38, 39]],
+                         [[40, 41, 42, 43, 44],
+                          [50, 51, 52, 53, 54],
+                          [55, 56, 57, 58, 59]]])
+
+        a2 = compress_nd(x, (1,))
+        a3 = compress_nd(x, -2)
+        a4 = compress_nd(x, (-2,))
+        assert_equal(a, a2)
+        assert_equal(a, a3)
+        assert_equal(a, a4)
+
+        # axis=2
+        a = compress_nd(x, 2)
+        assert_equal(a, [[[ 0, 2,  3,  4],
+                          [ 5, 7,  8,  9],
+                          [10, 12, 13, 14],
+                          [15, 17, 18, 19]],
+                         [[20, 22, 23, 24],
+                          [25, 27, 28, 29],
+                          [30, 32, 33, 34],
+                          [35, 37, 38, 39]],
+                         [[40, 42, 43, 44],
+                          [45, 47, 48, 49],
+                          [50, 52, 53, 54],
+                          [55, 57, 58, 59]]])
+
+        a2 = compress_nd(x, (2,))
+        a3 = compress_nd(x, -1)
+        a4 = compress_nd(x, (-1,))
+        assert_equal(a, a2)
+        assert_equal(a, a3)
+        assert_equal(a, a4)
+
+        # axis=(0, 1)
+        a = compress_nd(x, (0, 1))
+        assert_equal(a, [[[ 0,  1,  2,  3,  4],
+                          [10, 11, 12, 13, 14],
+                          [15, 16, 17, 18, 19]],
+                         [[40, 41, 42, 43, 44],
+                          [50, 51, 52, 53, 54],
+                          [55, 56, 57, 58, 59]]])
+        a2 = compress_nd(x, (0, -2))
+        assert_equal(a, a2)
+
+        # axis=(1, 2)
+        a = compress_nd(x, (1, 2))
+        assert_equal(a, [[[ 0,  2,  3,  4],
+                          [10, 12, 13, 14],
+                          [15, 17, 18, 19]],
+                         [[20, 22, 23, 24],
+                          [30, 32, 33, 34],
+                          [35, 37, 38, 39]],
+                         [[40, 42, 43, 44],
+                          [50, 52, 53, 54],
+                          [55, 57, 58, 59]]])
+
+        a2 = compress_nd(x, (-2, 2))
+        a3 = compress_nd(x, (1, -1))
+        a4 = compress_nd(x, (-2, -1))
+        assert_equal(a, a2)
+        assert_equal(a, a3)
+        assert_equal(a, a4)
+
+        # axis=(0, 2)
+        a = compress_nd(x, (0, 2))
+        assert_equal(a, [[[ 0,  2,  3,  4],
+                          [ 5,  7,  8,  9],
+                          [10, 12, 13, 14],
+                          [15, 17, 18, 19]],
+                         [[40, 42, 43, 44],
+                          [45, 47, 48, 49],
+                          [50, 52, 53, 54],
+                          [55, 57, 58, 59]]])
+
+        a2 = compress_nd(x, (0, -1))
+        assert_equal(a, a2)
+
+    def test_compress_rowcols(self):
+        # Tests compress_rowcols
+        x = array(np.arange(9).reshape(3, 3),
+                  mask=[[1, 0, 0], [0, 0, 0], [0, 0, 0]])
+        assert_equal(compress_rowcols(x), [[4, 5], [7, 8]])
+        assert_equal(compress_rowcols(x, 0), [[3, 4, 5], [6, 7, 8]])
+        assert_equal(compress_rowcols(x, 1), [[1, 2], [4, 5], [7, 8]])
+        x = array(x._data, mask=[[0, 0, 0], [0, 1, 0], [0, 0, 0]])
+        assert_equal(compress_rowcols(x), [[0, 2], [6, 8]])
+        assert_equal(compress_rowcols(x, 0), [[0, 1, 2], [6, 7, 8]])
+        assert_equal(compress_rowcols(x, 1), [[0, 2], [3, 5], [6, 8]])
+        x = array(x._data, mask=[[1, 0, 0], [0, 1, 0], [0, 0, 0]])
+        assert_equal(compress_rowcols(x), [[8]])
+        assert_equal(compress_rowcols(x, 0), [[6, 7, 8]])
+        assert_equal(compress_rowcols(x, 1,), [[2], [5], [8]])
+        x = array(x._data, mask=[[1, 0, 0], [0, 1, 0], [0, 0, 1]])
+        assert_equal(compress_rowcols(x).size, 0)
+        assert_equal(compress_rowcols(x, 0).size, 0)
+        assert_equal(compress_rowcols(x, 1).size, 0)
+
+    def test_mask_rowcols(self):
+        # Tests mask_rowcols.
+        x = array(np.arange(9).reshape(3, 3),
+                  mask=[[1, 0, 0], [0, 0, 0], [0, 0, 0]])
+        assert_equal(mask_rowcols(x).mask,
+                     [[1, 1, 1], [1, 0, 0], [1, 0, 0]])
+        assert_equal(mask_rowcols(x, 0).mask,
+                     [[1, 1, 1], [0, 0, 0], [0, 0, 0]])
+        assert_equal(mask_rowcols(x, 1).mask,
+                     [[1, 0, 0], [1, 0, 0], [1, 0, 0]])
+        x = array(x._data, mask=[[0, 0, 0], [0, 1, 0], [0, 0, 0]])
+        assert_equal(mask_rowcols(x).mask,
+                     [[0, 1, 0], [1, 1, 1], [0, 1, 0]])
+        assert_equal(mask_rowcols(x, 0).mask,
+                     [[0, 0, 0], [1, 1, 1], [0, 0, 0]])
+        assert_equal(mask_rowcols(x, 1).mask,
+                     [[0, 1, 0], [0, 1, 0], [0, 1, 0]])
+        x = array(x._data, mask=[[1, 0, 0], [0, 1, 0], [0, 0, 0]])
+        assert_equal(mask_rowcols(x).mask,
+                     [[1, 1, 1], [1, 1, 1], [1, 1, 0]])
+        assert_equal(mask_rowcols(x, 0).mask,
+                     [[1, 1, 1], [1, 1, 1], [0, 0, 0]])
+        assert_equal(mask_rowcols(x, 1,).mask,
+                     [[1, 1, 0], [1, 1, 0], [1, 1, 0]])
+        x = array(x._data, mask=[[1, 0, 0], [0, 1, 0], [0, 0, 1]])
+        assert_(mask_rowcols(x).all() is masked)
+        assert_(mask_rowcols(x, 0).all() is masked)
+        assert_(mask_rowcols(x, 1).all() is masked)
+        assert_(mask_rowcols(x).mask.all())
+        assert_(mask_rowcols(x, 0).mask.all())
+        assert_(mask_rowcols(x, 1).mask.all())
+
+    @pytest.mark.parametrize("axis", [None, 0, 1])
+    @pytest.mark.parametrize(["func", "rowcols_axis"],
+                             [(np.ma.mask_rows, 0), (np.ma.mask_cols, 1)])
+    def test_mask_row_cols_axis_deprecation(self, axis, func, rowcols_axis):
+        # Test deprecation of the axis argument to `mask_rows` and `mask_cols`
+        x = array(np.arange(9).reshape(3, 3),
+                  mask=[[1, 0, 0], [0, 0, 0], [0, 0, 0]])
+
+        with pytest.warns(DeprecationWarning):
+            res = func(x, axis=axis)
+            assert_equal(res, mask_rowcols(x, rowcols_axis))
+
+    def test_dot(self):
+        # Tests dot product
+        n = np.arange(1, 7)
+        #
+        m = [1, 0, 0, 0, 0, 0]
+        a = masked_array(n, mask=m).reshape(2, 3)
+        b = masked_array(n, mask=m).reshape(3, 2)
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[1, 1], [1, 0]])
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask, [[1, 1, 1], [1, 0, 0], [1, 0, 0]])
+        c = dot(a, b, strict=False)
+        assert_equal(c, np.dot(a.filled(0), b.filled(0)))
+        c = dot(b, a, strict=False)
+        assert_equal(c, np.dot(b.filled(0), a.filled(0)))
+        #
+        m = [0, 0, 0, 0, 0, 1]
+        a = masked_array(n, mask=m).reshape(2, 3)
+        b = masked_array(n, mask=m).reshape(3, 2)
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[0, 1], [1, 1]])
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask, [[0, 0, 1], [0, 0, 1], [1, 1, 1]])
+        c = dot(a, b, strict=False)
+        assert_equal(c, np.dot(a.filled(0), b.filled(0)))
+        assert_equal(c, dot(a, b))
+        c = dot(b, a, strict=False)
+        assert_equal(c, np.dot(b.filled(0), a.filled(0)))
+        #
+        m = [0, 0, 0, 0, 0, 0]
+        a = masked_array(n, mask=m).reshape(2, 3)
+        b = masked_array(n, mask=m).reshape(3, 2)
+        c = dot(a, b)
+        assert_equal(c.mask, nomask)
+        c = dot(b, a)
+        assert_equal(c.mask, nomask)
+        #
+        a = masked_array(n, mask=[1, 0, 0, 0, 0, 0]).reshape(2, 3)
+        b = masked_array(n, mask=[0, 0, 0, 0, 0, 0]).reshape(3, 2)
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[1, 1], [0, 0]])
+        c = dot(a, b, strict=False)
+        assert_equal(c, np.dot(a.filled(0), b.filled(0)))
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask, [[1, 0, 0], [1, 0, 0], [1, 0, 0]])
+        c = dot(b, a, strict=False)
+        assert_equal(c, np.dot(b.filled(0), a.filled(0)))
+        #
+        a = masked_array(n, mask=[0, 0, 0, 0, 0, 1]).reshape(2, 3)
+        b = masked_array(n, mask=[0, 0, 0, 0, 0, 0]).reshape(3, 2)
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[0, 0], [1, 1]])
+        c = dot(a, b)
+        assert_equal(c, np.dot(a.filled(0), b.filled(0)))
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask, [[0, 0, 1], [0, 0, 1], [0, 0, 1]])
+        c = dot(b, a, strict=False)
+        assert_equal(c, np.dot(b.filled(0), a.filled(0)))
+        #
+        a = masked_array(n, mask=[0, 0, 0, 0, 0, 1]).reshape(2, 3)
+        b = masked_array(n, mask=[0, 0, 1, 0, 0, 0]).reshape(3, 2)
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[1, 0], [1, 1]])
+        c = dot(a, b, strict=False)
+        assert_equal(c, np.dot(a.filled(0), b.filled(0)))
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask, [[0, 0, 1], [1, 1, 1], [0, 0, 1]])
+        c = dot(b, a, strict=False)
+        assert_equal(c, np.dot(b.filled(0), a.filled(0)))
+        #
+        a = masked_array(np.arange(8).reshape(2, 2, 2),
+                         mask=[[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        b = masked_array(np.arange(8).reshape(2, 2, 2),
+                         mask=[[[0, 0], [0, 0]], [[0, 0], [0, 1]]])
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask,
+                     [[[[1, 1], [1, 1]], [[0, 0], [0, 1]]],
+                      [[[0, 0], [0, 1]], [[0, 0], [0, 1]]]])
+        c = dot(a, b, strict=False)
+        assert_equal(c.mask,
+                     [[[[0, 0], [0, 1]], [[0, 0], [0, 0]]],
+                      [[[0, 0], [0, 0]], [[0, 0], [0, 0]]]])
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask,
+                     [[[[1, 0], [0, 0]], [[1, 0], [0, 0]]],
+                      [[[1, 0], [0, 0]], [[1, 1], [1, 1]]]])
+        c = dot(b, a, strict=False)
+        assert_equal(c.mask,
+                     [[[[0, 0], [0, 0]], [[0, 0], [0, 0]]],
+                      [[[0, 0], [0, 0]], [[1, 0], [0, 0]]]])
+        #
+        a = masked_array(np.arange(8).reshape(2, 2, 2),
+                         mask=[[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        b = 5.
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        c = dot(a, b, strict=False)
+        assert_equal(c.mask, [[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        c = dot(b, a, strict=True)
+        assert_equal(c.mask, [[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        c = dot(b, a, strict=False)
+        assert_equal(c.mask, [[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        #
+        a = masked_array(np.arange(8).reshape(2, 2, 2),
+                         mask=[[[1, 0], [0, 0]], [[0, 0], [0, 0]]])
+        b = masked_array(np.arange(2), mask=[0, 1])
+        c = dot(a, b, strict=True)
+        assert_equal(c.mask, [[1, 1], [1, 1]])
+        c = dot(a, b, strict=False)
+        assert_equal(c.mask, [[1, 0], [0, 0]])
+
+    def test_dot_returns_maskedarray(self):
+        # See gh-6611
+        a = np.eye(3)
+        b = array(a)
+        assert_(type(dot(a, a)) is MaskedArray)
+        assert_(type(dot(a, b)) is MaskedArray)
+        assert_(type(dot(b, a)) is MaskedArray)
+        assert_(type(dot(b, b)) is MaskedArray)
+
+    def test_dot_out(self):
+        a = array(np.eye(3))
+        out = array(np.zeros((3, 3)))
+        res = dot(a, a, out=out)
+        assert_(res is out)
+        assert_equal(a, res)
+
+
+class TestApplyAlongAxis:
+    # Tests 2D functions
+    def test_3d(self):
+        a = arange(12.).reshape(2, 2, 3)
+
+        def myfunc(b):
+            return b[1]
+
+        xa = apply_along_axis(myfunc, 2, a)
+        assert_equal(xa, [[1, 4], [7, 10]])
+
+    # Tests kwargs functions
+    def test_3d_kwargs(self):
+        a = arange(12).reshape(2, 2, 3)
+
+        def myfunc(b, offset=0):
+            return b[1 + offset]
+
+        xa = apply_along_axis(myfunc, 2, a, offset=1)
+        assert_equal(xa, [[2, 5], [8, 11]])
+
+
+class TestApplyOverAxes:
+    # Tests apply_over_axes
+    def test_basic(self):
+        a = arange(24).reshape(2, 3, 4)
+        test = apply_over_axes(np.sum, a, [0, 2])
+        ctrl = np.array([[[60], [92], [124]]])
+        assert_equal(test, ctrl)
+        a[(a % 2).astype(bool)] = masked
+        test = apply_over_axes(np.sum, a, [0, 2])
+        ctrl = np.array([[[28], [44], [60]]])
+        assert_equal(test, ctrl)
+
+
+class TestMedian:
+    def test_pytype(self):
+        r = np.ma.median([[np.inf, np.inf], [np.inf, np.inf]], axis=-1)
+        assert_equal(r, np.inf)
+
+    def test_inf(self):
+        # test that even which computes handles inf / x = masked
+        r = np.ma.median(np.ma.masked_array([[np.inf, np.inf],
+                                             [np.inf, np.inf]]), axis=-1)
+        assert_equal(r, np.inf)
+        r = np.ma.median(np.ma.masked_array([[np.inf, np.inf],
+                                             [np.inf, np.inf]]), axis=None)
+        assert_equal(r, np.inf)
+        # all masked
+        r = np.ma.median(np.ma.masked_array([[np.inf, np.inf],
+                                             [np.inf, np.inf]], mask=True),
+                         axis=-1)
+        assert_equal(r.mask, True)
+        r = np.ma.median(np.ma.masked_array([[np.inf, np.inf],
+                                             [np.inf, np.inf]], mask=True),
+                         axis=None)
+        assert_equal(r.mask, True)
+
+    def test_non_masked(self):
+        x = np.arange(9)
+        assert_equal(np.ma.median(x), 4.)
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        x = range(8)
+        assert_equal(np.ma.median(x), 3.5)
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        x = 5
+        assert_equal(np.ma.median(x), 5.)
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        # integer
+        x = np.arange(9 * 8).reshape(9, 8)
+        assert_equal(np.ma.median(x, axis=0), np.median(x, axis=0))
+        assert_equal(np.ma.median(x, axis=1), np.median(x, axis=1))
+        assert_(np.ma.median(x, axis=1) is not MaskedArray)
+        # float
+        x = np.arange(9 * 8.).reshape(9, 8)
+        assert_equal(np.ma.median(x, axis=0), np.median(x, axis=0))
+        assert_equal(np.ma.median(x, axis=1), np.median(x, axis=1))
+        assert_(np.ma.median(x, axis=1) is not MaskedArray)
+
+    def test_docstring_examples(self):
+        "test the examples given in the docstring of ma.median"
+        x = array(np.arange(8), mask=[0] * 4 + [1] * 4)
+        assert_equal(np.ma.median(x), 1.5)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        x = array(np.arange(10).reshape(2, 5), mask=[0] * 6 + [1] * 4)
+        assert_equal(np.ma.median(x), 2.5)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        ma_x = np.ma.median(x, axis=-1, overwrite_input=True)
+        assert_equal(ma_x, [2., 5.])
+        assert_equal(ma_x.shape, (2,), "shape mismatch")
+        assert_(type(ma_x) is MaskedArray)
+
+    def test_axis_argument_errors(self):
+        msg = "mask = %s, ndim = %s, axis = %s, overwrite_input = %s"
+        for ndmin in range(5):
+            for mask in [False, True]:
+                x = array(1, ndmin=ndmin, mask=mask)
+
+                # Valid axis values should not raise exception
+                args = itertools.product(range(-ndmin, ndmin), [False, True])
+                for axis, over in args:
+                    try:
+                        np.ma.median(x, axis=axis, overwrite_input=over)
+                    except Exception:
+                        raise AssertionError(msg % (mask, ndmin, axis, over))
+
+                # Invalid axis values should raise exception
+                args = itertools.product([-(ndmin + 1), ndmin], [False, True])
+                for axis, over in args:
+                    try:
+                        np.ma.median(x, axis=axis, overwrite_input=over)
+                    except np.exceptions.AxisError:
+                        pass
+                    else:
+                        raise AssertionError(msg % (mask, ndmin, axis, over))
+
+    def test_masked_0d(self):
+        # Check values
+        x = array(1, mask=False)
+        assert_equal(np.ma.median(x), 1)
+        x = array(1, mask=True)
+        assert_equal(np.ma.median(x), np.ma.masked)
+
+    def test_masked_1d(self):
+        x = array(np.arange(5), mask=True)
+        assert_equal(np.ma.median(x), np.ma.masked)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is np.ma.core.MaskedConstant)
+        x = array(np.arange(5), mask=False)
+        assert_equal(np.ma.median(x), 2.)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        x = array(np.arange(5), mask=[0, 1, 0, 0, 0])
+        assert_equal(np.ma.median(x), 2.5)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        x = array(np.arange(5), mask=[0, 1, 1, 1, 1])
+        assert_equal(np.ma.median(x), 0.)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        # integer
+        x = array(np.arange(5), mask=[0, 1, 1, 0, 0])
+        assert_equal(np.ma.median(x), 3.)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        # float
+        x = array(np.arange(5.), mask=[0, 1, 1, 0, 0])
+        assert_equal(np.ma.median(x), 3.)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        # integer
+        x = array(np.arange(6), mask=[0, 1, 1, 1, 1, 0])
+        assert_equal(np.ma.median(x), 2.5)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        # float
+        x = array(np.arange(6.), mask=[0, 1, 1, 1, 1, 0])
+        assert_equal(np.ma.median(x), 2.5)
+        assert_equal(np.ma.median(x).shape, (), "shape mismatch")
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+
+    def test_1d_shape_consistency(self):
+        assert_equal(np.ma.median(array([1, 2, 3], mask=[0, 0, 0])).shape,
+                     np.ma.median(array([1, 2, 3], mask=[0, 1, 0])).shape)
+
+    def test_2d(self):
+        # Tests median w/ 2D
+        (n, p) = (101, 30)
+        x = masked_array(np.linspace(-1., 1., n),)
+        x[:10] = x[-10:] = masked
+        z = masked_array(np.empty((n, p), dtype=float))
+        z[:, 0] = x[:]
+        idx = np.arange(len(x))
+        for i in range(1, p):
+            np.random.shuffle(idx)
+            z[:, i] = x[idx]
+        assert_equal(median(z[:, 0]), 0)
+        assert_equal(median(z), 0)
+        assert_equal(median(z, axis=0), np.zeros(p))
+        assert_equal(median(z.T, axis=1), np.zeros(p))
+
+    def test_2d_waxis(self):
+        # Tests median w/ 2D arrays and different axis.
+        x = masked_array(np.arange(30).reshape(10, 3))
+        x[:3] = x[-3:] = masked
+        assert_equal(median(x), 14.5)
+        assert_(type(np.ma.median(x)) is not MaskedArray)
+        assert_equal(median(x, axis=0), [13.5, 14.5, 15.5])
+        assert_(type(np.ma.median(x, axis=0)) is MaskedArray)
+        assert_equal(median(x, axis=1), [0, 0, 0, 10, 13, 16, 19, 0, 0, 0])
+        assert_(type(np.ma.median(x, axis=1)) is MaskedArray)
+        assert_equal(median(x, axis=1).mask, [1, 1, 1, 0, 0, 0, 0, 1, 1, 1])
+
+    def test_3d(self):
+        # Tests median w/ 3D
+        x = np.ma.arange(24).reshape(3, 4, 2)
+        x[x % 3 == 0] = masked
+        assert_equal(median(x, 0), [[12, 9], [6, 15], [12, 9], [18, 15]])
+        x = x.reshape((4, 3, 2))
+        assert_equal(median(x, 0), [[99, 10], [11, 99], [13, 14]])
+        x = np.ma.arange(24).reshape(4, 3, 2)
+        x[x % 5 == 0] = masked
+        assert_equal(median(x, 0), [[12, 10], [8, 9], [16, 17]])
+
+    def test_neg_axis(self):
+        x = masked_array(np.arange(30).reshape(10, 3))
+        x[:3] = x[-3:] = masked
+        assert_equal(median(x, axis=-1), median(x, axis=1))
+
+    def test_out_1d(self):
+        # integer float even odd
+        for v in (30, 30., 31, 31.):
+            x = masked_array(np.arange(v))
+            x[:3] = x[-3:] = masked
+            out = masked_array(np.ones(()))
+            r = median(x, out=out)
+            if v == 30:
+                assert_equal(out, 14.5)
+            else:
+                assert_equal(out, 15.)
+            assert_(r is out)
+            assert_(type(r) is MaskedArray)
+
+    def test_out(self):
+        # integer float even odd
+        for v in (40, 40., 30, 30.):
+            x = masked_array(np.arange(v).reshape(10, -1))
+            x[:3] = x[-3:] = masked
+            out = masked_array(np.ones(10))
+            r = median(x, axis=1, out=out)
+            if v == 30:
+                e = masked_array([0.] * 3 + [10, 13, 16, 19] + [0.] * 3,
+                                 mask=[True] * 3 + [False] * 4 + [True] * 3)
+            else:
+                e = masked_array([0.] * 3 + [13.5, 17.5, 21.5, 25.5] + [0.] * 3,
+                                 mask=[True] * 3 + [False] * 4 + [True] * 3)
+            assert_equal(r, e)
+            assert_(r is out)
+            assert_(type(r) is MaskedArray)
+
+    @pytest.mark.parametrize(
+        argnames='axis',
+        argvalues=[
+            None,
+            1,
+            (1, ),
+            (0, 1),
+            (-3, -1),
+        ]
+    )
+    def test_keepdims_out(self, axis):
+        mask = np.zeros((3, 5, 7, 11), dtype=bool)
+        # Randomly set some elements to True:
+        w = np.random.random((4, 200)) * np.array(mask.shape)[:, None]
+        w = w.astype(np.intp)
+        mask[tuple(w)] = np.nan
+        d = masked_array(np.ones(mask.shape), mask=mask)
+        if axis is None:
+            shape_out = (1,) * d.ndim
+        else:
+            axis_norm = normalize_axis_tuple(axis, d.ndim)
+            shape_out = tuple(
+                1 if i in axis_norm else d.shape[i] for i in range(d.ndim))
+        out = masked_array(np.empty(shape_out))
+        result = median(d, axis=axis, keepdims=True, out=out)
+        assert result is out
+        assert_equal(result.shape, shape_out)
+
+    def test_single_non_masked_value_on_axis(self):
+        data = [[1., 0.],
+                [0., 3.],
+                [0., 0.]]
+        masked_arr = np.ma.masked_equal(data, 0)
+        expected = [1., 3.]
+        assert_array_equal(np.ma.median(masked_arr, axis=0),
+                           expected)
+
+    def test_nan(self):
+        for mask in (False, np.zeros(6, dtype=bool)):
+            dm = np.ma.array([[1, np.nan, 3], [1, 2, 3]])
+            dm.mask = mask
+
+            # scalar result
+            r = np.ma.median(dm, axis=None)
+            assert_(np.isscalar(r))
+            assert_array_equal(r, np.nan)
+            r = np.ma.median(dm.ravel(), axis=0)
+            assert_(np.isscalar(r))
+            assert_array_equal(r, np.nan)
+
+            r = np.ma.median(dm, axis=0)
+            assert_equal(type(r), MaskedArray)
+            assert_array_equal(r, [1, np.nan, 3])
+            r = np.ma.median(dm, axis=1)
+            assert_equal(type(r), MaskedArray)
+            assert_array_equal(r, [np.nan, 2])
+            r = np.ma.median(dm, axis=-1)
+            assert_equal(type(r), MaskedArray)
+            assert_array_equal(r, [np.nan, 2])
+
+        dm = np.ma.array([[1, np.nan, 3], [1, 2, 3]])
+        dm[:, 2] = np.ma.masked
+        assert_array_equal(np.ma.median(dm, axis=None), np.nan)
+        assert_array_equal(np.ma.median(dm, axis=0), [1, np.nan, 3])
+        assert_array_equal(np.ma.median(dm, axis=1), [np.nan, 1.5])
+
+    def test_out_nan(self):
+        o = np.ma.masked_array(np.zeros((4,)))
+        d = np.ma.masked_array(np.ones((3, 4)))
+        d[2, 1] = np.nan
+        d[2, 2] = np.ma.masked
+        assert_equal(np.ma.median(d, 0, out=o), o)
+        o = np.ma.masked_array(np.zeros((3,)))
+        assert_equal(np.ma.median(d, 1, out=o), o)
+        o = np.ma.masked_array(np.zeros(()))
+        assert_equal(np.ma.median(d, out=o), o)
+
+    def test_nan_behavior(self):
+        a = np.ma.masked_array(np.arange(24, dtype=float))
+        a[::3] = np.ma.masked
+        a[2] = np.nan
+        assert_array_equal(np.ma.median(a), np.nan)
+        assert_array_equal(np.ma.median(a, axis=0), np.nan)
+
+        a = np.ma.masked_array(np.arange(24, dtype=float).reshape(2, 3, 4))
+        a.mask = np.arange(a.size) % 2 == 1
+        aorig = a.copy()
+        a[1, 2, 3] = np.nan
+        a[1, 1, 2] = np.nan
+
+        # no axis
+        assert_array_equal(np.ma.median(a), np.nan)
+        assert_(np.isscalar(np.ma.median(a)))
+
+        # axis0
+        b = np.ma.median(aorig, axis=0)
+        b[2, 3] = np.nan
+        b[1, 2] = np.nan
+        assert_equal(np.ma.median(a, 0), b)
+
+        # axis1
+        b = np.ma.median(aorig, axis=1)
+        b[1, 3] = np.nan
+        b[1, 2] = np.nan
+        assert_equal(np.ma.median(a, 1), b)
+
+        # axis02
+        b = np.ma.median(aorig, axis=(0, 2))
+        b[1] = np.nan
+        b[2] = np.nan
+        assert_equal(np.ma.median(a, (0, 2)), b)
+
+    def test_ambigous_fill(self):
+        # 255 is max value, used as filler for sort
+        a = np.array([[3, 3, 255], [3, 3, 255]], dtype=np.uint8)
+        a = np.ma.masked_array(a, mask=a == 3)
+        assert_array_equal(np.ma.median(a, axis=1), 255)
+        assert_array_equal(np.ma.median(a, axis=1).mask, False)
+        assert_array_equal(np.ma.median(a, axis=0), a[0])
+        assert_array_equal(np.ma.median(a), 255)
+
+    def test_special(self):
+        for inf in [np.inf, -np.inf]:
+            a = np.array([[inf, np.nan], [np.nan, np.nan]])
+            a = np.ma.masked_array(a, mask=np.isnan(a))
+            assert_equal(np.ma.median(a, axis=0), [inf, np.nan])
+            assert_equal(np.ma.median(a, axis=1), [inf, np.nan])
+            assert_equal(np.ma.median(a), inf)
+
+            a = np.array([[np.nan, np.nan, inf], [np.nan, np.nan, inf]])
+            a = np.ma.masked_array(a, mask=np.isnan(a))
+            assert_array_equal(np.ma.median(a, axis=1), inf)
+            assert_array_equal(np.ma.median(a, axis=1).mask, False)
+            assert_array_equal(np.ma.median(a, axis=0), a[0])
+            assert_array_equal(np.ma.median(a), inf)
+
+            # no mask
+            a = np.array([[inf, inf], [inf, inf]])
+            assert_equal(np.ma.median(a), inf)
+            assert_equal(np.ma.median(a, axis=0), inf)
+            assert_equal(np.ma.median(a, axis=1), inf)
+
+            a = np.array([[inf, 7, -inf, -9],
+                          [-10, np.nan, np.nan, 5],
+                          [4, np.nan, np.nan, inf]],
+                          dtype=np.float32)
+            a = np.ma.masked_array(a, mask=np.isnan(a))
+            if inf > 0:
+                assert_equal(np.ma.median(a, axis=0), [4., 7., -inf, 5.])
+                assert_equal(np.ma.median(a), 4.5)
+            else:
+                assert_equal(np.ma.median(a, axis=0), [-10., 7., -inf, -9.])
+                assert_equal(np.ma.median(a), -2.5)
+            assert_equal(np.ma.median(a, axis=1), [-1., -2.5, inf])
+
+            for i in range(10):
+                for j in range(1, 10):
+                    a = np.array([([np.nan] * i) + ([inf] * j)] * 2)
+                    a = np.ma.masked_array(a, mask=np.isnan(a))
+                    assert_equal(np.ma.median(a), inf)
+                    assert_equal(np.ma.median(a, axis=1), inf)
+                    assert_equal(np.ma.median(a, axis=0),
+                                 ([np.nan] * i) + [inf] * j)
+
+    def test_empty(self):
+        # empty arrays
+        a = np.ma.masked_array(np.array([], dtype=float))
+        with pytest.warns(RuntimeWarning):
+            assert_array_equal(np.ma.median(a), np.nan)
+
+        # multiple dimensions
+        a = np.ma.masked_array(np.array([], dtype=float, ndmin=3))
+        # no axis
+        with pytest.warns(RuntimeWarning):
+            assert_array_equal(np.ma.median(a), np.nan)
+
+        # axis 0 and 1
+        b = np.ma.masked_array(np.array([], dtype=float, ndmin=2))
+        assert_equal(np.ma.median(a, axis=0), b)
+        assert_equal(np.ma.median(a, axis=1), b)
+
+        # axis 2
+        b = np.ma.masked_array(np.array(np.nan, dtype=float, ndmin=2))
+        with pytest.warns(RuntimeWarning):
+            assert_equal(np.ma.median(a, axis=2), b)
+
+    def test_object(self):
+        o = np.ma.masked_array(np.arange(7.))
+        assert_(type(np.ma.median(o.astype(object))), float)
+        o[2] = np.nan
+        assert_(type(np.ma.median(o.astype(object))), float)
+
+
+class TestCov:
+
+    def _create_data(self):
+        return array(np.random.rand(12))
+
+    def test_covhelper(self):
+        x = self._create_data()
+        # Test not mask output type is a float.
+        assert_(_covhelper(x, rowvar=True)[1].dtype, np.float32)
+        assert_(_covhelper(x, y=x, rowvar=False)[1].dtype, np.float32)
+        # Test not mask output is equal after casting to float.
+        mask = x > 0.5
+        assert_array_equal(
+            _covhelper(
+                np.ma.masked_array(x, mask), rowvar=True
+            )[1].astype(bool),
+            ~mask.reshape(1, -1),
+        )
+        assert_array_equal(
+            _covhelper(
+                np.ma.masked_array(x, mask), y=x, rowvar=False
+            )[1].astype(bool),
+            np.vstack((~mask, ~mask)),
+        )
+
+    def test_1d_without_missing(self):
+        # Test cov on 1D variable w/o missing values
+        x = self._create_data()
+        assert_almost_equal(np.cov(x), cov(x))
+        assert_almost_equal(np.cov(x, rowvar=False), cov(x, rowvar=False))
+        assert_almost_equal(np.cov(x, rowvar=False, bias=True),
+                            cov(x, rowvar=False, bias=True))
+
+    def test_2d_without_missing(self):
+        # Test cov on 1 2D variable w/o missing values
+        x = self._create_data().reshape(3, 4)
+        assert_almost_equal(np.cov(x), cov(x))
+        assert_almost_equal(np.cov(x, rowvar=False), cov(x, rowvar=False))
+        assert_almost_equal(np.cov(x, rowvar=False, bias=True),
+                            cov(x, rowvar=False, bias=True))
+
+    def test_1d_with_missing(self):
+        # Test cov 1 1D variable w/missing values
+        x = self._create_data()
+        x[-1] = masked
+        x -= x.mean()
+        nx = x.compressed()
+        assert_almost_equal(np.cov(nx), cov(x))
+        assert_almost_equal(np.cov(nx, rowvar=False), cov(x, rowvar=False))
+        assert_almost_equal(np.cov(nx, rowvar=False, bias=True),
+                            cov(x, rowvar=False, bias=True))
+        #
+        try:
+            cov(x, allow_masked=False)
+        except ValueError:
+            pass
+        #
+        # 2 1D variables w/ missing values
+        nx = x[1:-1]
+        assert_almost_equal(np.cov(nx, nx[::-1]), cov(x, x[::-1]))
+        assert_almost_equal(np.cov(nx, nx[::-1], rowvar=False),
+                            cov(x, x[::-1], rowvar=False))
+        assert_almost_equal(np.cov(nx, nx[::-1], rowvar=False, bias=True),
+                            cov(x, x[::-1], rowvar=False, bias=True))
+
+    def test_2d_with_missing(self):
+        # Test cov on 2D variable w/ missing value
+        x = self._create_data()
+        x[-1] = masked
+        x = x.reshape(3, 4)
+        valid = np.logical_not(getmaskarray(x)).astype(int)
+        frac = np.dot(valid, valid.T)
+        xf = (x - x.mean(1)[:, None]).filled(0)
+        assert_almost_equal(cov(x),
+                            np.cov(xf) * (x.shape[1] - 1) / (frac - 1.))
+        assert_almost_equal(cov(x, bias=True),
+                            np.cov(xf, bias=True) * x.shape[1] / frac)
+        frac = np.dot(valid.T, valid)
+        xf = (x - x.mean(0)).filled(0)
+        assert_almost_equal(cov(x, rowvar=False),
+                            (np.cov(xf, rowvar=False) *
+                             (x.shape[0] - 1) / (frac - 1.)))
+        assert_almost_equal(cov(x, rowvar=False, bias=True),
+                            (np.cov(xf, rowvar=False, bias=True) *
+                             x.shape[0] / frac))
+
+
+class TestCorrcoef:
+
+    def _create_data(self):
+        data = array(np.random.rand(12))
+        data2 = array(np.random.rand(12))
+        return data, data2
+
+    def test_1d_without_missing(self):
+        # Test cov on 1D variable w/o missing values
+        x = self._create_data()[0]
+        assert_almost_equal(np.corrcoef(x), corrcoef(x))
+        assert_almost_equal(np.corrcoef(x, rowvar=False),
+                            corrcoef(x, rowvar=False))
+
+    def test_2d_without_missing(self):
+        # Test corrcoef on 1 2D variable w/o missing values
+        x = self._create_data()[0].reshape(3, 4)
+        assert_almost_equal(np.corrcoef(x), corrcoef(x))
+        assert_almost_equal(np.corrcoef(x, rowvar=False),
+                            corrcoef(x, rowvar=False))
+
+    def test_1d_with_missing(self):
+        # Test corrcoef 1 1D variable w/missing values
+        x = self._create_data()[0]
+        x[-1] = masked
+        x -= x.mean()
+        nx = x.compressed()
+        assert_almost_equal(np.corrcoef(nx, rowvar=False),
+                            corrcoef(x, rowvar=False))
+        try:
+            corrcoef(x, allow_masked=False)
+        except ValueError:
+            pass
+        # 2 1D variables w/ missing values
+        nx = x[1:-1]
+        assert_almost_equal(np.corrcoef(nx, nx[::-1]), corrcoef(x, x[::-1]))
+        assert_almost_equal(np.corrcoef(nx, nx[::-1], rowvar=False),
+                            corrcoef(x, x[::-1], rowvar=False))
+
+    def test_2d_with_missing(self):
+        # Test corrcoef on 2D variable w/ missing value
+        x = self._create_data()[0]
+        x[-1] = masked
+        x = x.reshape(3, 4)
+
+        test = corrcoef(x)
+        control = np.corrcoef(x)
+        assert_almost_equal(test[:-1, :-1], control[:-1, :-1])
+
+
+class TestPolynomial:
+
+    def test_polyfit(self):
+        # Tests polyfit
+        # On ndarrays
+        x = np.random.rand(10)
+        y = np.random.rand(20).reshape(-1, 2)
+        assert_almost_equal(polyfit(x, y, 3), np.polyfit(x, y, 3))
+        # ON 1D maskedarrays
+        x = x.view(MaskedArray)
+        x[0] = masked
+        y = y.view(MaskedArray)
+        y[0, 0] = y[-1, -1] = masked
+        #
+        (C, R, K, S, D) = polyfit(x, y[:, 0], 3, full=True)
+        (c, r, k, s, d) = np.polyfit(x[1:], y[1:, 0].compressed(), 3,
+                                     full=True)
+        for (a, a_) in zip((C, R, K, S, D), (c, r, k, s, d)):
+            assert_almost_equal(a, a_)
+        #
+        (C, R, K, S, D) = polyfit(x, y[:, -1], 3, full=True)
+        (c, r, k, s, d) = np.polyfit(x[1:-1], y[1:-1, -1], 3, full=True)
+        for (a, a_) in zip((C, R, K, S, D), (c, r, k, s, d)):
+            assert_almost_equal(a, a_)
+        #
+        (C, R, K, S, D) = polyfit(x, y, 3, full=True)
+        (c, r, k, s, d) = np.polyfit(x[1:-1], y[1:-1, :], 3, full=True)
+        for (a, a_) in zip((C, R, K, S, D), (c, r, k, s, d)):
+            assert_almost_equal(a, a_)
+        #
+        w = np.random.rand(10) + 1
+        wo = w.copy()
+        xs = x[1:-1]
+        ys = y[1:-1]
+        ws = w[1:-1]
+        (C, R, K, S, D) = polyfit(x, y, 3, full=True, w=w)
+        (c, r, k, s, d) = np.polyfit(xs, ys, 3, full=True, w=ws)
+        assert_equal(w, wo)
+        for (a, a_) in zip((C, R, K, S, D), (c, r, k, s, d)):
+            assert_almost_equal(a, a_)
+
+    def test_polyfit_with_masked_NaNs(self):
+        x = np.random.rand(10)
+        y = np.random.rand(20).reshape(-1, 2)
+
+        x[0] = np.nan
+        y[-1, -1] = np.nan
+        x = x.view(MaskedArray)
+        y = y.view(MaskedArray)
+        x[0] = masked
+        y[-1, -1] = masked
+
+        (C, R, K, S, D) = polyfit(x, y, 3, full=True)
+        (c, r, k, s, d) = np.polyfit(x[1:-1], y[1:-1, :], 3, full=True)
+        for (a, a_) in zip((C, R, K, S, D), (c, r, k, s, d)):
+            assert_almost_equal(a, a_)
+
+
+class TestArraySetOps:
+
+    def test_unique_onlist(self):
+        # Test unique on list
+        data = [1, 1, 1, 2, 2, 3]
+        test = unique(data, return_index=True, return_inverse=True)
+        assert_(isinstance(test[0], MaskedArray))
+        assert_equal(test[0], masked_array([1, 2, 3], mask=[0, 0, 0]))
+        assert_equal(test[1], [0, 3, 5])
+        assert_equal(test[2], [0, 0, 0, 1, 1, 2])
+
+    def test_unique_onmaskedarray(self):
+        # Test unique on masked data w/use_mask=True
+        data = masked_array([1, 1, 1, 2, 2, 3], mask=[0, 0, 1, 0, 1, 0])
+        test = unique(data, return_index=True, return_inverse=True)
+        assert_equal(test[0], masked_array([1, 2, 3, -1], mask=[0, 0, 0, 1]))
+        assert_equal(test[1], [0, 3, 5, 2])
+        assert_equal(test[2], [0, 0, 3, 1, 3, 2])
+        #
+        data.fill_value = 3
+        data = masked_array(data=[1, 1, 1, 2, 2, 3],
+                            mask=[0, 0, 1, 0, 1, 0], fill_value=3)
+        test = unique(data, return_index=True, return_inverse=True)
+        assert_equal(test[0], masked_array([1, 2, 3, -1], mask=[0, 0, 0, 1]))
+        assert_equal(test[1], [0, 3, 5, 2])
+        assert_equal(test[2], [0, 0, 3, 1, 3, 2])
+
+    def test_unique_allmasked(self):
+        # Test all masked
+        data = masked_array([1, 1, 1], mask=True)
+        test = unique(data, return_index=True, return_inverse=True)
+        assert_equal(test[0], masked_array([1, ], mask=[True]))
+        assert_equal(test[1], [0])
+        assert_equal(test[2], [0, 0, 0])
+        #
+        # Test masked
+        data = masked
+        test = unique(data, return_index=True, return_inverse=True)
+        assert_equal(test[0], masked_array(masked))
+        assert_equal(test[1], [0])
+        assert_equal(test[2], [0])
+
+    def test_ediff1d(self):
+        # Tests mediff1d
+        x = masked_array(np.arange(5), mask=[1, 0, 0, 0, 1])
+        control = array([1, 1, 1, 4], mask=[1, 0, 0, 1])
+        test = ediff1d(x)
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+
+    def test_ediff1d_tobegin(self):
+        # Test ediff1d w/ to_begin
+        x = masked_array(np.arange(5), mask=[1, 0, 0, 0, 1])
+        test = ediff1d(x, to_begin=masked)
+        control = array([0, 1, 1, 1, 4], mask=[1, 1, 0, 0, 1])
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+        #
+        test = ediff1d(x, to_begin=[1, 2, 3])
+        control = array([1, 2, 3, 1, 1, 1, 4], mask=[0, 0, 0, 1, 0, 0, 1])
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+
+    def test_ediff1d_toend(self):
+        # Test ediff1d w/ to_end
+        x = masked_array(np.arange(5), mask=[1, 0, 0, 0, 1])
+        test = ediff1d(x, to_end=masked)
+        control = array([1, 1, 1, 4, 0], mask=[1, 0, 0, 1, 1])
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+        #
+        test = ediff1d(x, to_end=[1, 2, 3])
+        control = array([1, 1, 1, 4, 1, 2, 3], mask=[1, 0, 0, 1, 0, 0, 0])
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+
+    def test_ediff1d_tobegin_toend(self):
+        # Test ediff1d w/ to_begin and to_end
+        x = masked_array(np.arange(5), mask=[1, 0, 0, 0, 1])
+        test = ediff1d(x, to_end=masked, to_begin=masked)
+        control = array([0, 1, 1, 1, 4, 0], mask=[1, 1, 0, 0, 1, 1])
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+        #
+        test = ediff1d(x, to_end=[1, 2, 3], to_begin=masked)
+        control = array([0, 1, 1, 1, 4, 1, 2, 3],
+                        mask=[1, 1, 0, 0, 1, 0, 0, 0])
+        assert_equal(test, control)
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+
+    def test_ediff1d_ndarray(self):
+        # Test ediff1d w/ a ndarray
+        x = np.arange(5)
+        test = ediff1d(x)
+        control = array([1, 1, 1, 1], mask=[0, 0, 0, 0])
+        assert_equal(test, control)
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+        #
+        test = ediff1d(x, to_end=masked, to_begin=masked)
+        control = array([0, 1, 1, 1, 1, 0], mask=[1, 0, 0, 0, 0, 1])
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test.filled(0), control.filled(0))
+        assert_equal(test.mask, control.mask)
+
+    def test_intersect1d(self):
+        # Test intersect1d
+        x = array([1, 3, 3, 3], mask=[0, 0, 0, 1])
+        y = array([3, 1, 1, 1], mask=[0, 0, 0, 1])
+        test = intersect1d(x, y)
+        control = array([1, 3, -1], mask=[0, 0, 1])
+        assert_equal(test, control)
+
+    def test_setxor1d(self):
+        # Test setxor1d
+        a = array([1, 2, 5, 7, -1], mask=[0, 0, 0, 0, 1])
+        b = array([1, 2, 3, 4, 5, -1], mask=[0, 0, 0, 0, 0, 1])
+        test = setxor1d(a, b)
+        assert_equal(test, array([3, 4, 7]))
+        #
+        a = array([1, 2, 5, 7, -1], mask=[0, 0, 0, 0, 1])
+        b = [1, 2, 3, 4, 5]
+        test = setxor1d(a, b)
+        assert_equal(test, array([3, 4, 7, -1], mask=[0, 0, 0, 1]))
+        #
+        a = array([1, 2, 3])
+        b = array([6, 5, 4])
+        test = setxor1d(a, b)
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, [1, 2, 3, 4, 5, 6])
+        #
+        a = array([1, 8, 2, 3], mask=[0, 1, 0, 0])
+        b = array([6, 5, 4, 8], mask=[0, 0, 0, 1])
+        test = setxor1d(a, b)
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, [1, 2, 3, 4, 5, 6])
+        #
+        assert_array_equal([], setxor1d([], []))
+
+    def test_setxor1d_unique(self):
+        # Test setxor1d with assume_unique=True
+        a = array([1, 2, 5, 7, -1], mask=[0, 0, 0, 0, 1])
+        b = [1, 2, 3, 4, 5]
+        test = setxor1d(a, b, assume_unique=True)
+        assert_equal(test, array([3, 4, 7, -1], mask=[0, 0, 0, 1]))
+        #
+        a = array([1, 8, 2, 3], mask=[0, 1, 0, 0])
+        b = array([6, 5, 4, 8], mask=[0, 0, 0, 1])
+        test = setxor1d(a, b, assume_unique=True)
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, [1, 2, 3, 4, 5, 6])
+        #
+        a = array([[1], [8], [2], [3]])
+        b = array([[6, 5], [4, 8]])
+        test = setxor1d(a, b, assume_unique=True)
+        assert_(isinstance(test, MaskedArray))
+        assert_equal(test, [1, 2, 3, 4, 5, 6])
+
+    def test_isin(self):
+        # the tests for in1d cover most of isin's behavior
+        # if in1d is removed, would need to change those tests to test
+        # isin instead.
+        a = np.arange(24).reshape([2, 3, 4])
+        mask = np.zeros([2, 3, 4])
+        mask[1, 2, 0] = 1
+        a = array(a, mask=mask)
+        b = array(data=[0, 10, 20, 30,  1,  3, 11, 22, 33],
+                  mask=[0,  1,  0,  1,  0,  1,  0,  1,  0])
+        ec = zeros((2, 3, 4), dtype=bool)
+        ec[0, 0, 0] = True
+        ec[0, 0, 1] = True
+        ec[0, 2, 3] = True
+        c = isin(a, b)
+        assert_(isinstance(c, MaskedArray))
+        assert_array_equal(c, ec)
+        # compare results of np.isin to ma.isin
+        d = np.isin(a, b[~b.mask]) & ~a.mask
+        assert_array_equal(c, d)
+
+    def test_in1d(self):
+        # Test in1d
+        a = array([1, 2, 5, 7, -1], mask=[0, 0, 0, 0, 1])
+        b = array([1, 2, 3, 4, 5, -1], mask=[0, 0, 0, 0, 0, 1])
+        test = in1d(a, b)
+        assert_equal(test, [True, True, True, False, True])
+        #
+        a = array([5, 5, 2, 1, -1], mask=[0, 0, 0, 0, 1])
+        b = array([1, 5, -1], mask=[0, 0, 1])
+        test = in1d(a, b)
+        assert_equal(test, [True, True, False, True, True])
+        #
+        assert_array_equal([], in1d([], []))
+
+    def test_in1d_invert(self):
+        # Test in1d's invert parameter
+        a = array([1, 2, 5, 7, -1], mask=[0, 0, 0, 0, 1])
+        b = array([1, 2, 3, 4, 5, -1], mask=[0, 0, 0, 0, 0, 1])
+        assert_equal(np.invert(in1d(a, b)), in1d(a, b, invert=True))
+
+        a = array([5, 5, 2, 1, -1], mask=[0, 0, 0, 0, 1])
+        b = array([1, 5, -1], mask=[0, 0, 1])
+        assert_equal(np.invert(in1d(a, b)), in1d(a, b, invert=True))
+
+        assert_array_equal([], in1d([], [], invert=True))
+
+    def test_union1d(self):
+        # Test union1d
+        a = array([1, 2, 5, 7, 5, -1], mask=[0, 0, 0, 0, 0, 1])
+        b = array([1, 2, 3, 4, 5, -1], mask=[0, 0, 0, 0, 0, 1])
+        test = union1d(a, b)
+        control = array([1, 2, 3, 4, 5, 7, -1], mask=[0, 0, 0, 0, 0, 0, 1])
+        assert_equal(test, control)
+
+        # Tests gh-10340, arguments to union1d should be
+        # flattened if they are not already 1D
+        x = array([[0, 1, 2], [3, 4, 5]], mask=[[0, 0, 0], [0, 0, 1]])
+        y = array([0, 1, 2, 3, 4], mask=[0, 0, 0, 0, 1])
+        ez = array([0, 1, 2, 3, 4, 5], mask=[0, 0, 0, 0, 0, 1])
+        z = union1d(x, y)
+        assert_equal(z, ez)
+        #
+        assert_array_equal([], union1d([], []))
+
+    def test_setdiff1d(self):
+        # Test setdiff1d
+        a = array([6, 5, 4, 7, 7, 1, 2, 1], mask=[0, 0, 0, 0, 0, 0, 0, 1])
+        b = array([2, 4, 3, 3, 2, 1, 5])
+        test = setdiff1d(a, b)
+        assert_equal(test, array([6, 7, -1], mask=[0, 0, 1]))
+        #
+        a = arange(10)
+        b = arange(8)
+        assert_equal(setdiff1d(a, b), array([8, 9]))
+        a = array([], np.uint32, mask=[])
+        assert_equal(setdiff1d(a, []).dtype, np.uint32)
+
+    def test_setdiff1d_char_array(self):
+        # Test setdiff1d_charray
+        a = np.array(['a', 'b', 'c'])
+        b = np.array(['a', 'b', 's'])
+        assert_array_equal(setdiff1d(a, b), np.array(['c']))
+
+
+class TestShapeBase:
+
+    def test_atleast_2d(self):
+        # Test atleast_2d
+        a = masked_array([0, 1, 2], mask=[0, 1, 0])
+        b = atleast_2d(a)
+        assert_equal(b.shape, (1, 3))
+        assert_equal(b.mask.shape, b.data.shape)
+        assert_equal(a.shape, (3,))
+        assert_equal(a.mask.shape, a.data.shape)
+        assert_equal(b.mask.shape, b.data.shape)
+
+    def test_shape_scalar(self):
+        # the atleast and diagflat function should work with scalars
+        # GitHub issue #3367
+        # Additionally, the atleast functions should accept multiple scalars
+        # correctly
+        b = atleast_1d(1.0)
+        assert_equal(b.shape, (1,))
+        assert_equal(b.mask.shape, b.shape)
+        assert_equal(b.data.shape, b.shape)
+
+        b = atleast_1d(1.0, 2.0)
+        for a in b:
+            assert_equal(a.shape, (1,))
+            assert_equal(a.mask.shape, a.shape)
+            assert_equal(a.data.shape, a.shape)
+
+        b = atleast_2d(1.0)
+        assert_equal(b.shape, (1, 1))
+        assert_equal(b.mask.shape, b.shape)
+        assert_equal(b.data.shape, b.shape)
+
+        b = atleast_2d(1.0, 2.0)
+        for a in b:
+            assert_equal(a.shape, (1, 1))
+            assert_equal(a.mask.shape, a.shape)
+            assert_equal(a.data.shape, a.shape)
+
+        b = atleast_3d(1.0)
+        assert_equal(b.shape, (1, 1, 1))
+        assert_equal(b.mask.shape, b.shape)
+        assert_equal(b.data.shape, b.shape)
+
+        b = atleast_3d(1.0, 2.0)
+        for a in b:
+            assert_equal(a.shape, (1, 1, 1))
+            assert_equal(a.mask.shape, a.shape)
+            assert_equal(a.data.shape, a.shape)
+
+        b = diagflat(1.0)
+        assert_equal(b.shape, (1, 1))
+        assert_equal(b.mask.shape, b.data.shape)
+
+    @pytest.mark.parametrize("fn", [atleast_1d, vstack, diagflat])
+    def test_inspect_signature(self, fn):
+        name = fn.__name__
+        assert getattr(np.ma, name) is fn
+
+        assert fn.__module__ == "numpy.ma.extras"
+
+        wrapped = getattr(np, fn.__name__)
+        sig_wrapped = inspect.signature(wrapped)
+        sig = inspect.signature(fn)
+        assert sig == sig_wrapped
+
+
+class TestNDEnumerate:
+
+    def test_ndenumerate_nomasked(self):
+        ordinary = np.arange(6.).reshape((1, 3, 2))
+        empty_mask = np.zeros_like(ordinary, dtype=bool)
+        with_mask = masked_array(ordinary, mask=empty_mask)
+        assert_equal(list(np.ndenumerate(ordinary)),
+                     list(ndenumerate(ordinary)))
+        assert_equal(list(ndenumerate(ordinary)),
+                     list(ndenumerate(with_mask)))
+        assert_equal(list(ndenumerate(with_mask)),
+                     list(ndenumerate(with_mask, compressed=False)))
+
+    def test_ndenumerate_allmasked(self):
+        a = masked_all(())
+        b = masked_all((100,))
+        c = masked_all((2, 3, 4))
+        assert_equal(list(ndenumerate(a)), [])
+        assert_equal(list(ndenumerate(b)), [])
+        assert_equal(list(ndenumerate(b, compressed=False)),
+                     list(zip(np.ndindex((100,)), 100 * [masked])))
+        assert_equal(list(ndenumerate(c)), [])
+        assert_equal(list(ndenumerate(c, compressed=False)),
+                     list(zip(np.ndindex((2, 3, 4)), 2 * 3 * 4 * [masked])))
+
+    def test_ndenumerate_mixedmasked(self):
+        a = masked_array(np.arange(12).reshape((3, 4)),
+                         mask=[[1, 1, 1, 1],
+                               [1, 1, 0, 1],
+                               [0, 0, 0, 0]])
+        items = [((1, 2), 6),
+                 ((2, 0), 8), ((2, 1), 9), ((2, 2), 10), ((2, 3), 11)]
+        assert_equal(list(ndenumerate(a)), items)
+        assert_equal(len(list(ndenumerate(a, compressed=False))), a.size)
+        for coordinate, value in ndenumerate(a, compressed=False):
+            assert_equal(a[coordinate], value)
+
+
+class TestStack:
+
+    def test_stack_1d(self):
+        a = masked_array([0, 1, 2], mask=[0, 1, 0])
+        b = masked_array([9, 8, 7], mask=[1, 0, 0])
+
+        c = stack([a, b], axis=0)
+        assert_equal(c.shape, (2, 3))
+        assert_array_equal(a.mask, c[0].mask)
+        assert_array_equal(b.mask, c[1].mask)
+
+        d = vstack([a, b])
+        assert_array_equal(c.data, d.data)
+        assert_array_equal(c.mask, d.mask)
+
+        c = stack([a, b], axis=1)
+        assert_equal(c.shape, (3, 2))
+        assert_array_equal(a.mask, c[:, 0].mask)
+        assert_array_equal(b.mask, c[:, 1].mask)
+
+    def test_stack_masks(self):
+        a = masked_array([0, 1, 2], mask=True)
+        b = masked_array([9, 8, 7], mask=False)
+
+        c = stack([a, b], axis=0)
+        assert_equal(c.shape, (2, 3))
+        assert_array_equal(a.mask, c[0].mask)
+        assert_array_equal(b.mask, c[1].mask)
+
+        d = vstack([a, b])
+        assert_array_equal(c.data, d.data)
+        assert_array_equal(c.mask, d.mask)
+
+        c = stack([a, b], axis=1)
+        assert_equal(c.shape, (3, 2))
+        assert_array_equal(a.mask, c[:, 0].mask)
+        assert_array_equal(b.mask, c[:, 1].mask)
+
+    def test_stack_nd(self):
+        # 2D
+        shp = (3, 2)
+        d1 = np.random.randint(0, 10, shp)
+        d2 = np.random.randint(0, 10, shp)
+        m1 = np.random.randint(0, 2, shp).astype(bool)
+        m2 = np.random.randint(0, 2, shp).astype(bool)
+        a1 = masked_array(d1, mask=m1)
+        a2 = masked_array(d2, mask=m2)
+
+        c = stack([a1, a2], axis=0)
+        c_shp = (2,) + shp
+        assert_equal(c.shape, c_shp)
+        assert_array_equal(a1.mask, c[0].mask)
+        assert_array_equal(a2.mask, c[1].mask)
+
+        c = stack([a1, a2], axis=-1)
+        c_shp = shp + (2,)
+        assert_equal(c.shape, c_shp)
+        assert_array_equal(a1.mask, c[..., 0].mask)
+        assert_array_equal(a2.mask, c[..., 1].mask)
+
+        # 4D
+        shp = (3, 2, 4, 5,)
+        d1 = np.random.randint(0, 10, shp)
+        d2 = np.random.randint(0, 10, shp)
+        m1 = np.random.randint(0, 2, shp).astype(bool)
+        m2 = np.random.randint(0, 2, shp).astype(bool)
+        a1 = masked_array(d1, mask=m1)
+        a2 = masked_array(d2, mask=m2)
+
+        c = stack([a1, a2], axis=0)
+        c_shp = (2,) + shp
+        assert_equal(c.shape, c_shp)
+        assert_array_equal(a1.mask, c[0].mask)
+        assert_array_equal(a2.mask, c[1].mask)
+
+        c = stack([a1, a2], axis=-1)
+        c_shp = shp + (2,)
+        assert_equal(c.shape, c_shp)
+        assert_array_equal(a1.mask, c[..., 0].mask)
+        assert_array_equal(a2.mask, c[..., 1].mask)
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_mrecords.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_mrecords.py
new file mode 100644
index 0000000000000000000000000000000000000000..da184d570e7c909cd0ac159e22bbf7782876bbb8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_mrecords.py
@@ -0,0 +1,495 @@
+"""Tests suite for mrecords.
+
+:author: Pierre Gerard-Marchant
+:contact: pierregm_at_uga_dot_edu
+
+"""
+import pickle
+
+import numpy as np
+import numpy.ma as ma
+from numpy._core.records import (
+    fromarrays as recfromarrays,
+    fromrecords as recfromrecords,
+    recarray,
+)
+from numpy.ma import masked, nomask
+from numpy.ma.mrecords import (
+    MaskedRecords,
+    addfield,
+    fromarrays,
+    fromrecords,
+    fromtextfile,
+    mrecarray,
+)
+from numpy.ma.testutils import assert_, assert_equal, assert_equal_records
+from numpy.testing import temppath
+
+
+class TestMRecords:
+
+    ilist = [1, 2, 3, 4, 5]
+    flist = [1.1, 2.2, 3.3, 4.4, 5.5]
+    slist = [b'one', b'two', b'three', b'four', b'five']
+    ddtype = [('a', int), ('b', float), ('c', '|S8')]
+    mask = [0, 1, 0, 0, 1]
+    base = ma.array(list(zip(ilist, flist, slist)), mask=mask, dtype=ddtype)
+
+    def test_byview(self):
+        # Test creation by view
+        base = self.base
+        mbase = base.view(mrecarray)
+        assert_equal(mbase.recordmask, base.recordmask)
+        assert_equal_records(mbase._mask, base._mask)
+        assert_(isinstance(mbase._data, recarray))
+        assert_equal_records(mbase._data, base._data.view(recarray))
+        for field in ('a', 'b', 'c'):
+            assert_equal(base[field], mbase[field])
+        assert_equal_records(mbase.view(mrecarray), mbase)
+
+    def test_get(self):
+        # Tests fields retrieval
+        base = self.base.copy()
+        mbase = base.view(mrecarray)
+        # As fields..........
+        for field in ('a', 'b', 'c'):
+            assert_equal(getattr(mbase, field), mbase[field])
+            assert_equal(base[field], mbase[field])
+        # as elements .......
+        mbase_first = mbase[0]
+        assert_(isinstance(mbase_first, mrecarray))
+        assert_equal(mbase_first.dtype, mbase.dtype)
+        assert_equal(mbase_first.tolist(), (1, 1.1, b'one'))
+        # Used to be mask, now it's recordmask
+        assert_equal(mbase_first.recordmask, nomask)
+        assert_equal(mbase_first._mask.item(), (False, False, False))
+        assert_equal(mbase_first['a'], mbase['a'][0])
+        mbase_last = mbase[-1]
+        assert_(isinstance(mbase_last, mrecarray))
+        assert_equal(mbase_last.dtype, mbase.dtype)
+        assert_equal(mbase_last.tolist(), (None, None, None))
+        # Used to be mask, now it's recordmask
+        assert_equal(mbase_last.recordmask, True)
+        assert_equal(mbase_last._mask.item(), (True, True, True))
+        assert_equal(mbase_last['a'], mbase['a'][-1])
+        assert_(mbase_last['a'] is masked)
+        # as slice ..........
+        mbase_sl = mbase[:2]
+        assert_(isinstance(mbase_sl, mrecarray))
+        assert_equal(mbase_sl.dtype, mbase.dtype)
+        # Used to be mask, now it's recordmask
+        assert_equal(mbase_sl.recordmask, [0, 1])
+        assert_equal_records(mbase_sl.mask,
+                             np.array([(False, False, False),
+                                       (True, True, True)],
+                                      dtype=mbase._mask.dtype))
+        assert_equal_records(mbase_sl, base[:2].view(mrecarray))
+        for field in ('a', 'b', 'c'):
+            assert_equal(getattr(mbase_sl, field), base[:2][field])
+
+    def test_set_fields(self):
+        # Tests setting fields.
+        base = self.base.copy()
+        mbase = base.view(mrecarray)
+        mbase = mbase.copy()
+        mbase.fill_value = (999999, 1e20, 'N/A')
+        # Change the data, the mask should be conserved
+        mbase.a._data[:] = 5
+        assert_equal(mbase['a']._data, [5, 5, 5, 5, 5])
+        assert_equal(mbase['a']._mask, [0, 1, 0, 0, 1])
+        # Change the elements, and the mask will follow
+        mbase.a = 1
+        assert_equal(mbase['a']._data, [1] * 5)
+        assert_equal(ma.getmaskarray(mbase['a']), [0] * 5)
+        # Use to be _mask, now it's recordmask
+        assert_equal(mbase.recordmask, [False] * 5)
+        assert_equal(mbase._mask.tolist(),
+                     np.array([(0, 0, 0),
+                               (0, 1, 1),
+                               (0, 0, 0),
+                               (0, 0, 0),
+                               (0, 1, 1)],
+                              dtype=bool))
+        # Set a field to mask ........................
+        mbase.c = masked
+        # Use to be mask, and now it's still mask !
+        assert_equal(mbase.c.mask, [1] * 5)
+        assert_equal(mbase.c.recordmask, [1] * 5)
+        assert_equal(ma.getmaskarray(mbase['c']), [1] * 5)
+        assert_equal(ma.getdata(mbase['c']), [b'N/A'] * 5)
+        assert_equal(mbase._mask.tolist(),
+                     np.array([(0, 0, 1),
+                               (0, 1, 1),
+                               (0, 0, 1),
+                               (0, 0, 1),
+                               (0, 1, 1)],
+                              dtype=bool))
+        # Set fields by slices .......................
+        mbase = base.view(mrecarray).copy()
+        mbase.a[3:] = 5
+        assert_equal(mbase.a, [1, 2, 3, 5, 5])
+        assert_equal(mbase.a._mask, [0, 1, 0, 0, 0])
+        mbase.b[3:] = masked
+        assert_equal(mbase.b, base['b'])
+        assert_equal(mbase.b._mask, [0, 1, 0, 1, 1])
+        # Set fields globally..........................
+        ndtype = [('alpha', '|S1'), ('num', int)]
+        data = ma.array([('a', 1), ('b', 2), ('c', 3)], dtype=ndtype)
+        rdata = data.view(MaskedRecords)
+        val = ma.array([10, 20, 30], mask=[1, 0, 0])
+
+        rdata['num'] = val
+        assert_equal(rdata.num, val)
+        assert_equal(rdata.num.mask, [1, 0, 0])
+
+    def test_set_fields_mask(self):
+        # Tests setting the mask of a field.
+        base = self.base.copy()
+        # This one has already a mask....
+        mbase = base.view(mrecarray)
+        mbase['a'][-2] = masked
+        assert_equal(mbase.a, [1, 2, 3, 4, 5])
+        assert_equal(mbase.a._mask, [0, 1, 0, 1, 1])
+        # This one has not yet
+        mbase = fromarrays([np.arange(5), np.random.rand(5)],
+                           dtype=[('a', int), ('b', float)])
+        mbase['a'][-2] = masked
+        assert_equal(mbase.a, [0, 1, 2, 3, 4])
+        assert_equal(mbase.a._mask, [0, 0, 0, 1, 0])
+
+    def test_set_mask(self):
+        base = self.base.copy()
+        mbase = base.view(mrecarray)
+        # Set the mask to True .......................
+        mbase.mask = masked
+        assert_equal(ma.getmaskarray(mbase['b']), [1] * 5)
+        assert_equal(mbase['a']._mask, mbase['b']._mask)
+        assert_equal(mbase['a']._mask, mbase['c']._mask)
+        assert_equal(mbase._mask.tolist(),
+                     np.array([(1, 1, 1)] * 5, dtype=bool))
+        # Delete the mask ............................
+        mbase.mask = nomask
+        assert_equal(ma.getmaskarray(mbase['c']), [0] * 5)
+        assert_equal(mbase._mask.tolist(),
+                     np.array([(0, 0, 0)] * 5, dtype=bool))
+
+    def test_set_mask_fromarray(self):
+        base = self.base.copy()
+        mbase = base.view(mrecarray)
+        # Sets the mask w/ an array
+        mbase.mask = [1, 0, 0, 0, 1]
+        assert_equal(mbase.a.mask, [1, 0, 0, 0, 1])
+        assert_equal(mbase.b.mask, [1, 0, 0, 0, 1])
+        assert_equal(mbase.c.mask, [1, 0, 0, 0, 1])
+        # Yay, once more !
+        mbase.mask = [0, 0, 0, 0, 1]
+        assert_equal(mbase.a.mask, [0, 0, 0, 0, 1])
+        assert_equal(mbase.b.mask, [0, 0, 0, 0, 1])
+        assert_equal(mbase.c.mask, [0, 0, 0, 0, 1])
+
+    def test_set_mask_fromfields(self):
+        mbase = self.base.copy().view(mrecarray)
+
+        nmask = np.array(
+            [(0, 1, 0), (0, 1, 0), (1, 0, 1), (1, 0, 1), (0, 0, 0)],
+            dtype=[('a', bool), ('b', bool), ('c', bool)])
+        mbase.mask = nmask
+        assert_equal(mbase.a.mask, [0, 0, 1, 1, 0])
+        assert_equal(mbase.b.mask, [1, 1, 0, 0, 0])
+        assert_equal(mbase.c.mask, [0, 0, 1, 1, 0])
+        # Reinitialize and redo
+        mbase.mask = False
+        mbase.fieldmask = nmask
+        assert_equal(mbase.a.mask, [0, 0, 1, 1, 0])
+        assert_equal(mbase.b.mask, [1, 1, 0, 0, 0])
+        assert_equal(mbase.c.mask, [0, 0, 1, 1, 0])
+
+    def test_set_elements(self):
+        base = self.base.copy()
+        # Set an element to mask .....................
+        mbase = base.view(mrecarray).copy()
+        mbase[-2] = masked
+        assert_equal(
+            mbase._mask.tolist(),
+            np.array([(0, 0, 0), (1, 1, 1), (0, 0, 0), (1, 1, 1), (1, 1, 1)],
+                     dtype=bool))
+        # Used to be mask, now it's recordmask!
+        assert_equal(mbase.recordmask, [0, 1, 0, 1, 1])
+        # Set slices .................................
+        mbase = base.view(mrecarray).copy()
+        mbase[:2] = (5, 5, 5)
+        assert_equal(mbase.a._data, [5, 5, 3, 4, 5])
+        assert_equal(mbase.a._mask, [0, 0, 0, 0, 1])
+        assert_equal(mbase.b._data, [5., 5., 3.3, 4.4, 5.5])
+        assert_equal(mbase.b._mask, [0, 0, 0, 0, 1])
+        assert_equal(mbase.c._data,
+                     [b'5', b'5', b'three', b'four', b'five'])
+        assert_equal(mbase.b._mask, [0, 0, 0, 0, 1])
+
+        mbase = base.view(mrecarray).copy()
+        mbase[:2] = masked
+        assert_equal(mbase.a._data, [1, 2, 3, 4, 5])
+        assert_equal(mbase.a._mask, [1, 1, 0, 0, 1])
+        assert_equal(mbase.b._data, [1.1, 2.2, 3.3, 4.4, 5.5])
+        assert_equal(mbase.b._mask, [1, 1, 0, 0, 1])
+        assert_equal(mbase.c._data,
+                     [b'one', b'two', b'three', b'four', b'five'])
+        assert_equal(mbase.b._mask, [1, 1, 0, 0, 1])
+
+    def test_setslices_hardmask(self):
+        # Tests setting slices w/ hardmask.
+        base = self.base.copy()
+        mbase = base.view(mrecarray)
+        mbase.harden_mask()
+        try:
+            mbase[-2:] = (5, 5, 5)
+            assert_equal(mbase.a._data, [1, 2, 3, 5, 5])
+            assert_equal(mbase.b._data, [1.1, 2.2, 3.3, 5, 5.5])
+            assert_equal(mbase.c._data,
+                         [b'one', b'two', b'three', b'5', b'five'])
+            assert_equal(mbase.a._mask, [0, 1, 0, 0, 1])
+            assert_equal(mbase.b._mask, mbase.a._mask)
+            assert_equal(mbase.b._mask, mbase.c._mask)
+        except NotImplementedError:
+            # OK, not implemented yet...
+            pass
+        except AssertionError:
+            raise
+        else:
+            raise Exception("Flexible hard masks should be supported !")
+        # Not using a tuple should crash
+        try:
+            mbase[-2:] = 3
+        except (NotImplementedError, TypeError):
+            pass
+        else:
+            raise TypeError("Should have expected a readable buffer object!")
+
+    def test_hardmask(self):
+        # Test hardmask
+        base = self.base.copy()
+        mbase = base.view(mrecarray)
+        mbase.harden_mask()
+        assert_(mbase._hardmask)
+        mbase.mask = nomask
+        assert_equal_records(mbase._mask, base._mask)
+        mbase.soften_mask()
+        assert_(not mbase._hardmask)
+        mbase.mask = nomask
+        # So, the mask of a field is no longer set to nomask...
+        assert_equal_records(mbase._mask,
+                             ma.make_mask_none(base.shape, base.dtype))
+        assert_(ma.make_mask(mbase['b']._mask) is nomask)
+        assert_equal(mbase['a']._mask, mbase['b']._mask)
+
+    def test_pickling(self):
+        # Test pickling
+        base = self.base.copy()
+        mrec = base.view(mrecarray)
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            _ = pickle.dumps(mrec, protocol=proto)
+            mrec_ = pickle.loads(_)
+            assert_equal(mrec_.dtype, mrec.dtype)
+            assert_equal_records(mrec_._data, mrec._data)
+            assert_equal(mrec_._mask, mrec._mask)
+            assert_equal_records(mrec_._mask, mrec._mask)
+
+    def test_filled(self):
+        # Test filling the array
+        _a = ma.array([1, 2, 3], mask=[0, 0, 1], dtype=int)
+        _b = ma.array([1.1, 2.2, 3.3], mask=[0, 0, 1], dtype=float)
+        _c = ma.array(['one', 'two', 'three'], mask=[0, 0, 1], dtype='|S8')
+        ddtype = [('a', int), ('b', float), ('c', '|S8')]
+        mrec = fromarrays([_a, _b, _c], dtype=ddtype,
+                          fill_value=(99999, 99999., 'N/A'))
+        mrecfilled = mrec.filled()
+        assert_equal(mrecfilled['a'], np.array((1, 2, 99999), dtype=int))
+        assert_equal(mrecfilled['b'], np.array((1.1, 2.2, 99999.),
+                                               dtype=float))
+        assert_equal(mrecfilled['c'], np.array(('one', 'two', 'N/A'),
+                                               dtype='|S8'))
+
+    def test_tolist(self):
+        # Test tolist.
+        _a = ma.array([1, 2, 3], mask=[0, 0, 1], dtype=int)
+        _b = ma.array([1.1, 2.2, 3.3], mask=[0, 0, 1], dtype=float)
+        _c = ma.array(['one', 'two', 'three'], mask=[1, 0, 0], dtype='|S8')
+        ddtype = [('a', int), ('b', float), ('c', '|S8')]
+        mrec = fromarrays([_a, _b, _c], dtype=ddtype,
+                          fill_value=(99999, 99999., 'N/A'))
+
+        assert_equal(mrec.tolist(),
+                     [(1, 1.1, None), (2, 2.2, b'two'),
+                      (None, None, b'three')])
+
+    def test_withnames(self):
+        # Test the creation w/ format and names
+        x = mrecarray(1, formats=float, names='base')
+        x[0]['base'] = 10
+        assert_equal(x['base'][0], 10)
+
+    def test_exotic_formats(self):
+        # Test that 'exotic' formats are processed properly
+        easy = mrecarray(1, dtype=[('i', int), ('s', '|S8'), ('f', float)])
+        easy[0] = masked
+        assert_equal(easy.filled(1).item(), (1, b'1', 1.))
+
+        solo = mrecarray(1, dtype=[('f0', '<f8', (2, 2))])
+        solo[0] = masked
+        assert_equal(solo.filled(1).item(),
+                     np.array((1,), dtype=solo.dtype).item())
+
+        mult = mrecarray(2, dtype="i4, (2,3)float, float")
+        mult[0] = masked
+        mult[1] = (1, 1, 1)
+        mult.filled(0)
+        assert_equal_records(mult.filled(0),
+                             np.array([(0, 0, 0), (1, 1, 1)],
+                                      dtype=mult.dtype))
+
+
+class TestView:
+
+    def _create_data(self):
+        a, b = (np.arange(10), np.random.rand(10))
+        ndtype = [('a', float), ('b', float)]
+        arr = np.array(list(zip(a, b)), dtype=ndtype)
+
+        mrec = fromarrays([a, b], dtype=ndtype, fill_value=(-9., -99.))
+        mrec.mask[3] = (False, True)
+        return mrec, a, b, arr
+
+    def test_view_by_itself(self):
+        mrec = self._create_data()[0]
+        test = mrec.view()
+        assert_(isinstance(test, MaskedRecords))
+        assert_equal_records(test, mrec)
+        assert_equal_records(test._mask, mrec._mask)
+
+    def test_view_simple_dtype(self):
+        mrec, a, b, _ = self._create_data()
+        ntype = (float, 2)
+        test = mrec.view(ntype)
+        assert_(isinstance(test, ma.MaskedArray))
+        assert_equal(test, np.array(list(zip(a, b)), dtype=float))
+        assert_(test[3, 1] is ma.masked)
+
+    def test_view_flexible_type(self):
+        mrec, _, _, arr = self._create_data()
+        alttype = [('A', float), ('B', float)]
+        test = mrec.view(alttype)
+        assert_(isinstance(test, MaskedRecords))
+        assert_equal_records(test, arr.view(alttype))
+        assert_(test['B'][3] is masked)
+        assert_equal(test.dtype, np.dtype(alttype))
+        assert_(test._fill_value is None)
+
+
+##############################################################################
+class TestMRecordsImport:
+
+    _a = ma.array([1, 2, 3], mask=[0, 0, 1], dtype=int)
+    _b = ma.array([1.1, 2.2, 3.3], mask=[0, 0, 1], dtype=float)
+    _c = ma.array([b'one', b'two', b'three'],
+                  mask=[0, 0, 1], dtype='|S8')
+    ddtype = [('a', int), ('b', float), ('c', '|S8')]
+    mrec = fromarrays([_a, _b, _c], dtype=ddtype,
+                      fill_value=(b'99999', b'99999.',
+                                  b'N/A'))
+    nrec = recfromarrays((_a._data, _b._data, _c._data), dtype=ddtype)
+    data = (mrec, nrec, ddtype)
+
+    def test_fromarrays(self):
+        _a = ma.array([1, 2, 3], mask=[0, 0, 1], dtype=int)
+        _b = ma.array([1.1, 2.2, 3.3], mask=[0, 0, 1], dtype=float)
+        _c = ma.array(['one', 'two', 'three'], mask=[0, 0, 1], dtype='|S8')
+        (mrec, nrec, _) = self.data
+        for (f, l) in zip(('a', 'b', 'c'), (_a, _b, _c)):
+            assert_equal(getattr(mrec, f)._mask, l._mask)
+        # One record only
+        _x = ma.array([1, 1.1, 'one'], mask=[1, 0, 0], dtype=object)
+        assert_equal_records(fromarrays(_x, dtype=mrec.dtype), mrec[0])
+
+    def test_fromrecords(self):
+        # Test construction from records.
+        (mrec, nrec, ddtype) = self.data
+        # ......
+        palist = [(1, 'abc', 3.7000002861022949, 0),
+                  (2, 'xy', 6.6999998092651367, 1),
+                  (0, ' ', 0.40000000596046448, 0)]
+        pa = recfromrecords(palist, names='c1, c2, c3, c4')
+        mpa = fromrecords(palist, names='c1, c2, c3, c4')
+        assert_equal_records(pa, mpa)
+        # .....
+        _mrec = fromrecords(nrec)
+        assert_equal(_mrec.dtype, mrec.dtype)
+        for field in _mrec.dtype.names:
+            assert_equal(getattr(_mrec, field), getattr(mrec._data, field))
+
+        _mrec = fromrecords(nrec.tolist(), names='c1,c2,c3')
+        assert_equal(_mrec.dtype, [('c1', int), ('c2', float), ('c3', '|S5')])
+        for (f, n) in zip(('c1', 'c2', 'c3'), ('a', 'b', 'c')):
+            assert_equal(getattr(_mrec, f), getattr(mrec._data, n))
+
+        _mrec = fromrecords(mrec)
+        assert_equal(_mrec.dtype, mrec.dtype)
+        assert_equal_records(_mrec._data, mrec.filled())
+        assert_equal_records(_mrec._mask, mrec._mask)
+
+    def test_fromrecords_wmask(self):
+        # Tests construction from records w/ mask.
+        (mrec, nrec, ddtype) = self.data
+
+        _mrec = fromrecords(nrec.tolist(), dtype=ddtype, mask=[0, 1, 0,])
+        assert_equal_records(_mrec._data, mrec._data)
+        assert_equal(_mrec._mask.tolist(), [(0, 0, 0), (1, 1, 1), (0, 0, 0)])
+
+        _mrec = fromrecords(nrec.tolist(), dtype=ddtype, mask=True)
+        assert_equal_records(_mrec._data, mrec._data)
+        assert_equal(_mrec._mask.tolist(), [(1, 1, 1), (1, 1, 1), (1, 1, 1)])
+
+        _mrec = fromrecords(nrec.tolist(), dtype=ddtype, mask=mrec._mask)
+        assert_equal_records(_mrec._data, mrec._data)
+        assert_equal(_mrec._mask.tolist(), mrec._mask.tolist())
+
+        _mrec = fromrecords(nrec.tolist(), dtype=ddtype,
+                            mask=mrec._mask.tolist())
+        assert_equal_records(_mrec._data, mrec._data)
+        assert_equal(_mrec._mask.tolist(), mrec._mask.tolist())
+
+    def test_fromtextfile(self):
+        # Tests reading from a text file.
+        fcontent = (
+"""#
+'One (S)','Two (I)','Three (F)','Four (M)','Five (-)','Six (C)'
+'strings',1,1.0,'mixed column',,1
+'with embedded "double quotes"',2,2.0,1.0,,1
+'strings',3,3.0E5,3,,1
+'strings',4,-1e-10,,,1
+""")
+        with temppath() as path:
+            with open(path, 'w') as f:
+                f.write(fcontent)
+            mrectxt = fromtextfile(path, delimiter=',', varnames='ABCDEFG')
+        assert_(isinstance(mrectxt, MaskedRecords))
+        assert_equal(mrectxt.F, [1, 1, 1, 1])
+        assert_equal(mrectxt.E._mask, [1, 1, 1, 1])
+        assert_equal(mrectxt.C, [1, 2, 3.e+5, -1e-10])
+
+    def test_addfield(self):
+        # Tests addfield
+        (mrec, nrec, ddtype) = self.data
+        (d, m) = ([100, 200, 300], [1, 0, 0])
+        mrec = addfield(mrec, ma.array(d, mask=m))
+        assert_equal(mrec.f3, d)
+        assert_equal(mrec.f3._mask, m)
+
+
+def test_record_array_with_object_field():
+    # Trac #1839
+    y = ma.masked_array(
+        [(1, '2'), (3, '4')],
+        mask=[(0, 0), (0, 1)],
+        dtype=[('a', int), ('b', object)])
+    # getting an item used to fail
+    y[1]
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_old_ma.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_old_ma.py
new file mode 100644
index 0000000000000000000000000000000000000000..8586bbc43988966ebeb9b97d4494c8aabd699c44
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_old_ma.py
@@ -0,0 +1,939 @@
+import pickle
+from functools import reduce
+
+import pytest
+
+import numpy as np
+import numpy._core.fromnumeric as fromnumeric
+import numpy._core.umath as umath
+from numpy.ma import (
+    MaskedArray,
+    MaskType,
+    absolute,
+    add,
+    all,
+    allclose,
+    allequal,
+    alltrue,
+    arange,
+    arccos,
+    arcsin,
+    arctan,
+    arctan2,
+    array,
+    average,
+    choose,
+    concatenate,
+    conjugate,
+    cos,
+    cosh,
+    count,
+    divide,
+    equal,
+    exp,
+    filled,
+    getmask,
+    greater,
+    greater_equal,
+    inner,
+    isMaskedArray,
+    less,
+    less_equal,
+    log,
+    log10,
+    make_mask,
+    masked,
+    masked_array,
+    masked_equal,
+    masked_greater,
+    masked_greater_equal,
+    masked_inside,
+    masked_less,
+    masked_less_equal,
+    masked_not_equal,
+    masked_outside,
+    masked_print_option,
+    masked_values,
+    masked_where,
+    maximum,
+    minimum,
+    multiply,
+    nomask,
+    nonzero,
+    not_equal,
+    ones,
+    outer,
+    product,
+    put,
+    ravel,
+    repeat,
+    resize,
+    shape,
+    sin,
+    sinh,
+    sometrue,
+    sort,
+    sqrt,
+    subtract,
+    sum,
+    take,
+    tan,
+    tanh,
+    transpose,
+    where,
+    zeros,
+)
+from numpy.testing import assert_, assert_equal, assert_raises
+
+pi = np.pi
+
+
+def eq(v, w, msg=''):
+    result = allclose(v, w)
+    if not result:
+        print(f'Not eq:{msg}\n{v}\n----{w}')
+    return result
+
+
+class TestMa:
+
+    def _create_data(self):
+        x = np.array([1., 1., 1., -2., pi / 2.0, 4., 5., -10., 10., 1., 2., 3.])
+        y = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.])
+        a10 = 10.
+        m1 = [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0]
+        m2 = [0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1]
+        xm = array(x, mask=m1)
+        ym = array(y, mask=m2)
+        z = np.array([-.5, 0., .5, .8])
+        zm = array(z, mask=[0, 1, 0, 0])
+        xf = np.where(m1, 1e+20, x)
+        s = x.shape
+        xm.set_fill_value(1e+20)
+        return x, y, a10, m1, m2, xm, ym, z, zm, xf, s
+
+    def test_testBasic1d(self):
+        # Test of basic array creation and properties in 1 dimension.
+        x, _, _, m1, _, xm, _, _, _, xf, s = self._create_data()
+        assert_(not isMaskedArray(x))
+        assert_(isMaskedArray(xm))
+        assert_equal(shape(xm), s)
+        assert_equal(xm.shape, s)
+        assert_equal(xm.dtype, x.dtype)
+        assert_equal(xm.size, reduce(lambda x, y: x * y, s))
+        assert_equal(count(xm), len(m1) - reduce(lambda x, y: x + y, m1))
+        assert_(eq(xm, xf))
+        assert_(eq(filled(xm, 1.e20), xf))
+        assert_(eq(x, xm))
+
+    @pytest.mark.parametrize("s", [(4, 3), (6, 2)])
+    def test_testBasic2d(self, s):
+        # Test of basic array creation and properties in 2 dimensions.
+        x, y, _, m1, _, xm, ym, _, _, xf, s = self._create_data()
+        x.shape = s
+        y.shape = s
+        xm.shape = s
+        ym.shape = s
+        xf.shape = s
+
+        assert_(not isMaskedArray(x))
+        assert_(isMaskedArray(xm))
+        assert_equal(shape(xm), s)
+        assert_equal(xm.shape, s)
+        assert_equal(xm.size, reduce(lambda x, y: x * y, s))
+        assert_equal(count(xm), len(m1) - reduce(lambda x, y: x + y, m1))
+        assert_(eq(xm, xf))
+        assert_(eq(filled(xm, 1.e20), xf))
+        assert_(eq(x, xm))
+
+    def test_testArithmetic(self):
+        # Test of basic arithmetic.
+        x, y, a10, _, _, xm, ym, _, _, xf, s = self._create_data()
+        a2d = array([[1, 2], [0, 4]])
+        a2dm = masked_array(a2d, [[0, 0], [1, 0]])
+        assert_(eq(a2d * a2d, a2d * a2dm))
+        assert_(eq(a2d + a2d, a2d + a2dm))
+        assert_(eq(a2d - a2d, a2d - a2dm))
+        for s in [(12,), (4, 3), (2, 6)]:
+            x = x.reshape(s)
+            y = y.reshape(s)
+            xm = xm.reshape(s)
+            ym = ym.reshape(s)
+            xf = xf.reshape(s)
+            assert_(eq(-x, -xm))
+            assert_(eq(x + y, xm + ym))
+            assert_(eq(x - y, xm - ym))
+            assert_(eq(x * y, xm * ym))
+            with np.errstate(divide='ignore', invalid='ignore'):
+                assert_(eq(x / y, xm / ym))
+            assert_(eq(a10 + y, a10 + ym))
+            assert_(eq(a10 - y, a10 - ym))
+            assert_(eq(a10 * y, a10 * ym))
+            with np.errstate(divide='ignore', invalid='ignore'):
+                assert_(eq(a10 / y, a10 / ym))
+            assert_(eq(x + a10, xm + a10))
+            assert_(eq(x - a10, xm - a10))
+            assert_(eq(x * a10, xm * a10))
+            assert_(eq(x / a10, xm / a10))
+            assert_(eq(x ** 2, xm ** 2))
+            assert_(eq(abs(x) ** 2.5, abs(xm) ** 2.5))
+            assert_(eq(x ** y, xm ** ym))
+            assert_(eq(np.add(x, y), add(xm, ym)))
+            assert_(eq(np.subtract(x, y), subtract(xm, ym)))
+            assert_(eq(np.multiply(x, y), multiply(xm, ym)))
+            with np.errstate(divide='ignore', invalid='ignore'):
+                assert_(eq(np.divide(x, y), divide(xm, ym)))
+
+    def test_testMixedArithmetic(self):
+        na = np.array([1])
+        ma = array([1])
+        assert_(isinstance(na + ma, MaskedArray))
+        assert_(isinstance(ma + na, MaskedArray))
+
+    def test_testUfuncs1(self):
+        # Test various functions such as sin, cos.
+        x, y, _, _, _, xm, ym, z, zm, _, _ = self._create_data()
+        assert_(eq(np.cos(x), cos(xm)))
+        assert_(eq(np.cosh(x), cosh(xm)))
+        assert_(eq(np.sin(x), sin(xm)))
+        assert_(eq(np.sinh(x), sinh(xm)))
+        assert_(eq(np.tan(x), tan(xm)))
+        assert_(eq(np.tanh(x), tanh(xm)))
+        with np.errstate(divide='ignore', invalid='ignore'):
+            assert_(eq(np.sqrt(abs(x)), sqrt(xm)))
+            assert_(eq(np.log(abs(x)), log(xm)))
+            assert_(eq(np.log10(abs(x)), log10(xm)))
+        assert_(eq(np.exp(x), exp(xm)))
+        assert_(eq(np.arcsin(z), arcsin(zm)))
+        assert_(eq(np.arccos(z), arccos(zm)))
+        assert_(eq(np.arctan(z), arctan(zm)))
+        assert_(eq(np.arctan2(x, y), arctan2(xm, ym)))
+        assert_(eq(np.absolute(x), absolute(xm)))
+        assert_(eq(np.equal(x, y), equal(xm, ym)))
+        assert_(eq(np.not_equal(x, y), not_equal(xm, ym)))
+        assert_(eq(np.less(x, y), less(xm, ym)))
+        assert_(eq(np.greater(x, y), greater(xm, ym)))
+        assert_(eq(np.less_equal(x, y), less_equal(xm, ym)))
+        assert_(eq(np.greater_equal(x, y), greater_equal(xm, ym)))
+        assert_(eq(np.conjugate(x), conjugate(xm)))
+        assert_(eq(np.concatenate((x, y)), concatenate((xm, ym))))
+        assert_(eq(np.concatenate((x, y)), concatenate((x, y))))
+        assert_(eq(np.concatenate((x, y)), concatenate((xm, y))))
+        assert_(eq(np.concatenate((x, y, x)), concatenate((x, ym, x))))
+
+    def test_xtestCount(self):
+        # Test count
+        ott = array([0., 1., 2., 3.], mask=[1, 0, 0, 0])
+        assert_(count(ott).dtype.type is np.intp)
+        assert_equal(3, count(ott))
+        assert_equal(1, count(1))
+        assert_(eq(0, array(1, mask=[1])))
+        ott = ott.reshape((2, 2))
+        assert_(count(ott).dtype.type is np.intp)
+        assert_(isinstance(count(ott, 0), np.ndarray))
+        assert_(count(ott).dtype.type is np.intp)
+        assert_(eq(3, count(ott)))
+        assert_(getmask(count(ott, 0)) is nomask)
+        assert_(eq([1, 2], count(ott, 0)))
+
+    def test_testMinMax(self):
+        # Test minimum and maximum.
+        x, _, _, _, _, xm, _, _, _, _, _ = self._create_data()
+        xr = np.ravel(x)  # max doesn't work if shaped
+        xmr = ravel(xm)
+
+        # true because of careful selection of data
+        assert_(eq(max(xr), maximum.reduce(xmr)))
+        assert_(eq(min(xr), minimum.reduce(xmr)))
+
+    def test_testAddSumProd(self):
+        # Test add, sum, product.
+        x, y, _, _, _, xm, ym, _, _, _, s = self._create_data()
+        assert_(eq(np.add.reduce(x), add.reduce(x)))
+        assert_(eq(np.add.accumulate(x), add.accumulate(x)))
+        assert_(eq(4, sum(array(4), axis=0)))
+        assert_(eq(4, sum(array(4), axis=0)))
+        assert_(eq(np.sum(x, axis=0), sum(x, axis=0)))
+        assert_(eq(np.sum(filled(xm, 0), axis=0), sum(xm, axis=0)))
+        assert_(eq(np.sum(x, 0), sum(x, 0)))
+        assert_(eq(np.prod(x, axis=0), product(x, axis=0)))
+        assert_(eq(np.prod(x, 0), product(x, 0)))
+        assert_(eq(np.prod(filled(xm, 1), axis=0),
+                           product(xm, axis=0)))
+        if len(s) > 1:
+            assert_(eq(np.concatenate((x, y), 1),
+                               concatenate((xm, ym), 1)))
+            assert_(eq(np.add.reduce(x, 1), add.reduce(x, 1)))
+            assert_(eq(np.sum(x, 1), sum(x, 1)))
+            assert_(eq(np.prod(x, 1), product(x, 1)))
+
+    def test_testCI(self):
+        # Test of conversions and indexing
+        x1 = np.array([1, 2, 4, 3])
+        x2 = array(x1, mask=[1, 0, 0, 0])
+        x3 = array(x1, mask=[0, 1, 0, 1])
+        x4 = array(x1)
+        # test conversion to strings
+        str(x2)  # raises?
+        repr(x2)  # raises?
+        assert_(eq(np.sort(x1), sort(x2, fill_value=0)))
+        # tests of indexing
+        assert_(type(x2[1]) is type(x1[1]))
+        assert_(x1[1] == x2[1])
+        assert_(x2[0] is masked)
+        assert_(eq(x1[2], x2[2]))
+        assert_(eq(x1[2:5], x2[2:5]))
+        assert_(eq(x1[:], x2[:]))
+        assert_(eq(x1[1:], x3[1:]))
+        x1[2] = 9
+        x2[2] = 9
+        assert_(eq(x1, x2))
+        x1[1:3] = 99
+        x2[1:3] = 99
+        assert_(eq(x1, x2))
+        x2[1] = masked
+        assert_(eq(x1, x2))
+        x2[1:3] = masked
+        assert_(eq(x1, x2))
+        x2[:] = x1
+        x2[1] = masked
+        assert_(allequal(getmask(x2), array([0, 1, 0, 0])))
+        x3[:] = masked_array([1, 2, 3, 4], [0, 1, 1, 0])
+        assert_(allequal(getmask(x3), array([0, 1, 1, 0])))
+        x4[:] = masked_array([1, 2, 3, 4], [0, 1, 1, 0])
+        assert_(allequal(getmask(x4), array([0, 1, 1, 0])))
+        assert_(allequal(x4, array([1, 2, 3, 4])))
+        x1 = np.arange(5) * 1.0
+        x2 = masked_values(x1, 3.0)
+        assert_(eq(x1, x2))
+        assert_(allequal(array([0, 0, 0, 1, 0], MaskType), x2.mask))
+        assert_(eq(3.0, x2.fill_value))
+        x1 = array([1, 'hello', 2, 3], object)
+        x2 = np.array([1, 'hello', 2, 3], object)
+        s1 = x1[1]
+        s2 = x2[1]
+        assert_equal(type(s2), str)
+        assert_equal(type(s1), str)
+        assert_equal(s1, s2)
+        assert_(x1[1:1].shape == (0,))
+
+    def test_testCopySize(self):
+        # Tests of some subtle points of copying and sizing.
+        n = [0, 0, 1, 0, 0]
+        m = make_mask(n)
+        m2 = make_mask(m)
+        assert_(m is m2)
+        m3 = make_mask(m, copy=True)
+        assert_(m is not m3)
+
+        x1 = np.arange(5)
+        y1 = array(x1, mask=m)
+        assert_(y1._data is not x1)
+        assert_(allequal(x1, y1._data))
+        assert_(y1._mask is m)
+
+        y1a = array(y1, copy=0)
+        # For copy=False, one might expect that the array would just
+        # passed on, i.e., that it would be "is" instead of "==".
+        # See gh-4043 for discussion.
+        assert_(y1a._mask.__array_interface__ ==
+                y1._mask.__array_interface__)
+
+        y2 = array(x1, mask=m3, copy=0)
+        assert_(y2._mask is m3)
+        assert_(y2[2] is masked)
+        y2[2] = 9
+        assert_(y2[2] is not masked)
+        assert_(y2._mask is m3)
+        assert_(allequal(y2.mask, 0))
+
+        y2a = array(x1, mask=m, copy=1)
+        assert_(y2a._mask is not m)
+        assert_(y2a[2] is masked)
+        y2a[2] = 9
+        assert_(y2a[2] is not masked)
+        assert_(y2a._mask is not m)
+        assert_(allequal(y2a.mask, 0))
+
+        y3 = array(x1 * 1.0, mask=m)
+        assert_(filled(y3).dtype is (x1 * 1.0).dtype)
+
+        x4 = arange(4)
+        x4[2] = masked
+        y4 = resize(x4, (8,))
+        assert_(eq(concatenate([x4, x4]), y4))
+        assert_(eq(getmask(y4), [0, 0, 1, 0, 0, 0, 1, 0]))
+        y5 = repeat(x4, (2, 2, 2, 2), axis=0)
+        assert_(eq(y5, [0, 0, 1, 1, 2, 2, 3, 3]))
+        y6 = repeat(x4, 2, axis=0)
+        assert_(eq(y5, y6))
+
+    def test_testPut(self):
+        # Test of put
+        d = arange(5)
+        n = [0, 0, 0, 1, 1]
+        m = make_mask(n)
+        m2 = m.copy()
+        x = array(d, mask=m)
+        assert_(x[3] is masked)
+        assert_(x[4] is masked)
+        x[[1, 4]] = [10, 40]
+        assert_(x._mask is m)
+        assert_(x[3] is masked)
+        assert_(x[4] is not masked)
+        assert_(eq(x, [0, 10, 2, -1, 40]))
+
+        x = array(d, mask=m2, copy=True)
+        x.put([0, 1, 2], [-1, 100, 200])
+        assert_(x._mask is not m2)
+        assert_(x[3] is masked)
+        assert_(x[4] is masked)
+        assert_(eq(x, [-1, 100, 200, 0, 0]))
+
+    def test_testPut2(self):
+        # Test of put
+        d = arange(5)
+        x = array(d, mask=[0, 0, 0, 0, 0])
+        z = array([10, 40], mask=[1, 0])
+        assert_(x[2] is not masked)
+        assert_(x[3] is not masked)
+        x[2:4] = z
+        assert_(x[2] is masked)
+        assert_(x[3] is not masked)
+        assert_(eq(x, [0, 1, 10, 40, 4]))
+
+        d = arange(5)
+        x = array(d, mask=[0, 0, 0, 0, 0])
+        y = x[2:4]
+        z = array([10, 40], mask=[1, 0])
+        assert_(x[2] is not masked)
+        assert_(x[3] is not masked)
+        y[:] = z
+        assert_(y[0] is masked)
+        assert_(y[1] is not masked)
+        assert_(eq(y, [10, 40]))
+        assert_(x[2] is masked)
+        assert_(x[3] is not masked)
+        assert_(eq(x, [0, 1, 10, 40, 4]))
+
+    def test_testMaPut(self):
+        _, _, _, _, _, _, ym, _, zm, _, _ = self._create_data()
+        m = [1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1]
+        i = np.nonzero(m)[0]
+        put(ym, i, zm)
+        assert_(all(take(ym, i, axis=0) == zm))
+
+    def test_testOddFeatures(self):
+        # Test of other odd features
+        x = arange(20)
+        x = x.reshape(4, 5)
+        x.flat[5] = 12
+        assert_(x[1, 0] == 12)
+        z = x + 10j * x
+        assert_(eq(z.real, x))
+        assert_(eq(z.imag, 10 * x))
+        assert_(eq((z * conjugate(z)).real, 101 * x * x))
+        z.imag[...] = 0.0
+
+        x = arange(10)
+        x[3] = masked
+        assert_(str(x[3]) == str(masked))
+        c = x >= 8
+        assert_(count(where(c, masked, masked)) == 0)
+        assert_(shape(where(c, masked, masked)) == c.shape)
+        z = where(c, x, masked)
+        assert_(z.dtype is x.dtype)
+        assert_(z[3] is masked)
+        assert_(z[4] is masked)
+        assert_(z[7] is masked)
+        assert_(z[8] is not masked)
+        assert_(z[9] is not masked)
+        assert_(eq(x, z))
+        z = where(c, masked, x)
+        assert_(z.dtype is x.dtype)
+        assert_(z[3] is masked)
+        assert_(z[4] is not masked)
+        assert_(z[7] is not masked)
+        assert_(z[8] is masked)
+        assert_(z[9] is masked)
+        z = masked_where(c, x)
+        assert_(z.dtype is x.dtype)
+        assert_(z[3] is masked)
+        assert_(z[4] is not masked)
+        assert_(z[7] is not masked)
+        assert_(z[8] is masked)
+        assert_(z[9] is masked)
+        assert_(eq(x, z))
+        x = array([1., 2., 3., 4., 5.])
+        c = array([1, 1, 1, 0, 0])
+        x[2] = masked
+        z = where(c, x, -x)
+        assert_(eq(z, [1., 2., 0., -4., -5]))
+        c[0] = masked
+        z = where(c, x, -x)
+        assert_(eq(z, [1., 2., 0., -4., -5]))
+        assert_(z[0] is masked)
+        assert_(z[1] is not masked)
+        assert_(z[2] is masked)
+        assert_(eq(masked_where(greater(x, 2), x), masked_greater(x, 2)))
+        assert_(eq(masked_where(greater_equal(x, 2), x),
+                   masked_greater_equal(x, 2)))
+        assert_(eq(masked_where(less(x, 2), x), masked_less(x, 2)))
+        assert_(eq(masked_where(less_equal(x, 2), x), masked_less_equal(x, 2)))
+        assert_(eq(masked_where(not_equal(x, 2), x), masked_not_equal(x, 2)))
+        assert_(eq(masked_where(equal(x, 2), x), masked_equal(x, 2)))
+        assert_(eq(masked_where(not_equal(x, 2), x), masked_not_equal(x, 2)))
+        assert_(eq(masked_inside(list(range(5)), 1, 3), [0, 199, 199, 199, 4]))
+        assert_(eq(masked_outside(list(range(5)), 1, 3), [199, 1, 2, 3, 199]))
+        assert_(eq(masked_inside(array(list(range(5)),
+                                       mask=[1, 0, 0, 0, 0]), 1, 3).mask,
+                   [1, 1, 1, 1, 0]))
+        assert_(eq(masked_outside(array(list(range(5)),
+                                        mask=[0, 1, 0, 0, 0]), 1, 3).mask,
+                   [1, 1, 0, 0, 1]))
+        assert_(eq(masked_equal(array(list(range(5)),
+                                      mask=[1, 0, 0, 0, 0]), 2).mask,
+                   [1, 0, 1, 0, 0]))
+        assert_(eq(masked_not_equal(array([2, 2, 1, 2, 1],
+                                          mask=[1, 0, 0, 0, 0]), 2).mask,
+                   [1, 0, 1, 0, 1]))
+        assert_(eq(masked_where([1, 1, 0, 0, 0], [1, 2, 3, 4, 5]),
+                   [99, 99, 3, 4, 5]))
+        atest = ones((10, 10, 10), dtype=np.float32)
+        btest = zeros(atest.shape, MaskType)
+        ctest = masked_where(btest, atest)
+        assert_(eq(atest, ctest))
+        z = choose(c, (-x, x))
+        assert_(eq(z, [1., 2., 0., -4., -5]))
+        assert_(z[0] is masked)
+        assert_(z[1] is not masked)
+        assert_(z[2] is masked)
+        x = arange(6)
+        x[5] = masked
+        y = arange(6) * 10
+        y[2] = masked
+        c = array([1, 1, 1, 0, 0, 0], mask=[1, 0, 0, 0, 0, 0])
+        cm = c.filled(1)
+        z = where(c, x, y)
+        zm = where(cm, x, y)
+        assert_(eq(z, zm))
+        assert_(getmask(zm) is nomask)
+        assert_(eq(zm, [0, 1, 2, 30, 40, 50]))
+        z = where(c, masked, 1)
+        assert_(eq(z, [99, 99, 99, 1, 1, 1]))
+        z = where(c, 1, masked)
+        assert_(eq(z, [99, 1, 1, 99, 99, 99]))
+
+    def test_testMinMax2(self):
+        # Test of minimum, maximum.
+        assert_(eq(minimum([1, 2, 3], [4, 0, 9]), [1, 0, 3]))
+        assert_(eq(maximum([1, 2, 3], [4, 0, 9]), [4, 2, 9]))
+        x = arange(5)
+        y = arange(5) - 2
+        x[3] = masked
+        y[0] = masked
+        assert_(eq(minimum(x, y), where(less(x, y), x, y)))
+        assert_(eq(maximum(x, y), where(greater(x, y), x, y)))
+        assert_(minimum.reduce(x) == 0)
+        assert_(maximum.reduce(x) == 4)
+
+    def test_testTakeTransposeInnerOuter(self):
+        # Test of take, transpose, inner, outer products
+        x = arange(24)
+        y = np.arange(24)
+        x[5:6] = masked
+        x = x.reshape(2, 3, 4)
+        y = y.reshape(2, 3, 4)
+        assert_(eq(np.transpose(y, (2, 0, 1)), transpose(x, (2, 0, 1))))
+        assert_(eq(np.take(y, (2, 0, 1), 1), take(x, (2, 0, 1), 1)))
+        assert_(eq(np.inner(filled(x, 0), filled(y, 0)),
+                   inner(x, y)))
+        assert_(eq(np.outer(filled(x, 0), filled(y, 0)),
+                   outer(x, y)))
+        y = array(['abc', 1, 'def', 2, 3], object)
+        y[2] = masked
+        t = take(y, [0, 3, 4])
+        assert_(t[0] == 'abc')
+        assert_(t[1] == 2)
+        assert_(t[2] == 3)
+
+    def test_testInplace(self):
+        # Test of inplace operations and rich comparisons
+        y = arange(10)
+
+        x = arange(10)
+        xm = arange(10)
+        xm[2] = masked
+        x += 1
+        assert_(eq(x, y + 1))
+        xm += 1
+        assert_(eq(x, y + 1))
+
+        x = arange(10)
+        xm = arange(10)
+        xm[2] = masked
+        x -= 1
+        assert_(eq(x, y - 1))
+        xm -= 1
+        assert_(eq(xm, y - 1))
+
+        x = arange(10) * 1.0
+        xm = arange(10) * 1.0
+        xm[2] = masked
+        x *= 2.0
+        assert_(eq(x, y * 2))
+        xm *= 2.0
+        assert_(eq(xm, y * 2))
+
+        x = arange(10) * 2
+        xm = arange(10)
+        xm[2] = masked
+        x //= 2
+        assert_(eq(x, y))
+        xm //= 2
+        assert_(eq(x, y))
+
+        x = arange(10) * 1.0
+        xm = arange(10) * 1.0
+        xm[2] = masked
+        x /= 2.0
+        assert_(eq(x, y / 2.0))
+        xm /= arange(10)
+        assert_(eq(xm, ones((10,))))
+
+        x = arange(10).astype(np.float32)
+        xm = arange(10)
+        xm[2] = masked
+        x += 1.
+        assert_(eq(x, y + 1.))
+
+    def test_testPickle(self):
+        # Test of pickling
+        x = arange(12)
+        x[4:10:2] = masked
+        x = x.reshape(4, 3)
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            s = pickle.dumps(x, protocol=proto)
+            y = pickle.loads(s)
+            assert_(eq(x, y))
+
+    def test_testMasked(self):
+        # Test of masked element
+        xx = arange(6)
+        xx[1] = masked
+        assert_(str(masked) == '--')
+        assert_(xx[1] is masked)
+        assert_equal(filled(xx[1], 0), 0)
+
+    def test_testAverage1(self):
+        # Test of average.
+        ott = array([0., 1., 2., 3.], mask=[1, 0, 0, 0])
+        assert_(eq(2.0, average(ott, axis=0)))
+        assert_(eq(2.0, average(ott, weights=[1., 1., 2., 1.])))
+        result, wts = average(ott, weights=[1., 1., 2., 1.], returned=True)
+        assert_(eq(2.0, result))
+        assert_(wts == 4.0)
+        ott[:] = masked
+        assert_(average(ott, axis=0) is masked)
+        ott = array([0., 1., 2., 3.], mask=[1, 0, 0, 0])
+        ott = ott.reshape(2, 2)
+        ott[:, 1] = masked
+        assert_(eq(average(ott, axis=0), [2.0, 0.0]))
+        assert_(average(ott, axis=1)[0] is masked)
+        assert_(eq([2., 0.], average(ott, axis=0)))
+        result, wts = average(ott, axis=0, returned=True)
+        assert_(eq(wts, [1., 0.]))
+
+    def test_testAverage2(self):
+        # More tests of average.
+        w1 = [0, 1, 1, 1, 1, 0]
+        w2 = [[0, 1, 1, 1, 1, 0], [1, 0, 0, 0, 0, 1]]
+        x = arange(6)
+        assert_(allclose(average(x, axis=0), 2.5))
+        assert_(allclose(average(x, axis=0, weights=w1), 2.5))
+        y = array([arange(6), 2.0 * arange(6)])
+        assert_(allclose(average(y, None),
+                                 np.add.reduce(np.arange(6)) * 3. / 12.))
+        assert_(allclose(average(y, axis=0), np.arange(6) * 3. / 2.))
+        assert_(allclose(average(y, axis=1),
+                                 [average(x, axis=0), average(x, axis=0) * 2.0]))
+        assert_(allclose(average(y, None, weights=w2), 20. / 6.))
+        assert_(allclose(average(y, axis=0, weights=w2),
+                                 [0., 1., 2., 3., 4., 10.]))
+        assert_(allclose(average(y, axis=1),
+                                 [average(x, axis=0), average(x, axis=0) * 2.0]))
+        m1 = zeros(6)
+        m2 = [0, 0, 1, 1, 0, 0]
+        m3 = [[0, 0, 1, 1, 0, 0], [0, 1, 1, 1, 1, 0]]
+        m4 = ones(6)
+        m5 = [0, 1, 1, 1, 1, 1]
+        assert_(allclose(average(masked_array(x, m1), axis=0), 2.5))
+        assert_(allclose(average(masked_array(x, m2), axis=0), 2.5))
+        assert_(average(masked_array(x, m4), axis=0) is masked)
+        assert_equal(average(masked_array(x, m5), axis=0), 0.0)
+        assert_equal(count(average(masked_array(x, m4), axis=0)), 0)
+        z = masked_array(y, m3)
+        assert_(allclose(average(z, None), 20. / 6.))
+        assert_(allclose(average(z, axis=0),
+                                 [0., 1., 99., 99., 4.0, 7.5]))
+        assert_(allclose(average(z, axis=1), [2.5, 5.0]))
+        assert_(allclose(average(z, axis=0, weights=w2),
+                                 [0., 1., 99., 99., 4.0, 10.0]))
+
+        a = arange(6)
+        b = arange(6) * 3
+        r1, w1 = average([[a, b], [b, a]], axis=1, returned=True)
+        assert_equal(shape(r1), shape(w1))
+        assert_equal(r1.shape, w1.shape)
+        r2, w2 = average(ones((2, 2, 3)), axis=0, weights=[3, 1], returned=True)
+        assert_equal(shape(w2), shape(r2))
+        r2, w2 = average(ones((2, 2, 3)), returned=True)
+        assert_equal(shape(w2), shape(r2))
+        r2, w2 = average(ones((2, 2, 3)), weights=ones((2, 2, 3)), returned=True)
+        assert_(shape(w2) == shape(r2))
+        a2d = array([[1, 2], [0, 4]], float)
+        a2dm = masked_array(a2d, [[0, 0], [1, 0]])
+        a2da = average(a2d, axis=0)
+        assert_(eq(a2da, [0.5, 3.0]))
+        a2dma = average(a2dm, axis=0)
+        assert_(eq(a2dma, [1.0, 3.0]))
+        a2dma = average(a2dm, axis=None)
+        assert_(eq(a2dma, 7. / 3.))
+        a2dma = average(a2dm, axis=1)
+        assert_(eq(a2dma, [1.5, 4.0]))
+
+    def test_testToPython(self):
+        assert_equal(1, int(array(1)))
+        assert_equal(1.0, float(array(1)))
+        assert_equal(1, int(array([[[1]]])))
+        assert_equal(1.0, float(array([[1]])))
+        assert_raises(TypeError, float, array([1, 1]))
+        assert_raises(ValueError, bool, array([0, 1]))
+        assert_raises(ValueError, bool, array([0, 0], mask=[0, 1]))
+
+    def test_testScalarArithmetic(self):
+        xm = array(0, mask=1)
+        # TODO FIXME: Find out what the following raises a warning in r8247
+        with np.errstate(divide='ignore'):
+            assert_((1 / array(0)).mask)
+        assert_((1 + xm).mask)
+        assert_((-xm).mask)
+        assert_((-xm).mask)
+        assert_(maximum(xm, xm).mask)
+        assert_(minimum(xm, xm).mask)
+        assert_(xm.filled().dtype is xm._data.dtype)
+        x = array(0, mask=0)
+        assert_(x.filled() == x._data)
+        assert_equal(str(xm), str(masked_print_option))
+
+    def test_testArrayMethods(self):
+        a = array([1, 3, 2])
+        assert_(eq(a.any(), a._data.any()))
+        assert_(eq(a.all(), a._data.all()))
+        assert_(eq(a.argmax(), a._data.argmax()))
+        assert_(eq(a.argmin(), a._data.argmin()))
+        assert_(eq(a.choose(0, 1, 2, 3, 4),
+                           a._data.choose(0, 1, 2, 3, 4)))
+        assert_(eq(a.compress([1, 0, 1]), a._data.compress([1, 0, 1])))
+        assert_(eq(a.conj(), a._data.conj()))
+        assert_(eq(a.conjugate(), a._data.conjugate()))
+        m = array([[1, 2], [3, 4]])
+        assert_(eq(m.diagonal(), m._data.diagonal()))
+        assert_(eq(a.sum(), a._data.sum()))
+        assert_(eq(a.take([1, 2]), a._data.take([1, 2])))
+        assert_(eq(m.transpose(), m._data.transpose()))
+
+    def test_testArrayAttributes(self):
+        a = array([1, 3, 2])
+        assert_equal(a.ndim, 1)
+
+    def test_testAPI(self):
+        assert_(not [m for m in dir(np.ndarray)
+                     if m not in dir(MaskedArray) and
+                     not m.startswith('_')])
+
+    def test_testSingleElementSubscript(self):
+        a = array([1, 3, 2])
+        b = array([1, 3, 2], mask=[1, 0, 1])
+        assert_equal(a[0].shape, ())
+        assert_equal(b[0].shape, ())
+        assert_equal(b[1].shape, ())
+
+    def test_assignment_by_condition(self):
+        # Test for gh-18951
+        a = array([1, 2, 3, 4], mask=[1, 0, 1, 0])
+        c = a >= 3
+        a[c] = 5
+        assert_(a[2] is masked)
+
+    def test_assignment_by_condition_2(self):
+        # gh-19721
+        a = masked_array([0, 1], mask=[False, False])
+        b = masked_array([0, 1], mask=[True, True])
+        mask = a < 1
+        b[mask] = a[mask]
+        expected_mask = [False, True]
+        assert_equal(b.mask, expected_mask)
+
+
+class TestUfuncs:
+
+    def _create_data(self):
+        return (array([1.0, 0, -1, pi / 2] * 2, mask=[0, 1] + [0] * 6),
+                  array([1.0, 0, -1, pi / 2] * 2, mask=[1, 0] + [0] * 6),)
+
+    def test_testUfuncRegression(self):
+        f_invalid_ignore = [
+            'sqrt', 'arctanh', 'arcsin', 'arccos',
+            'arccosh', 'arctanh', 'log', 'log10', 'divide',
+            'true_divide', 'floor_divide', 'remainder', 'fmod']
+        for f in ['sqrt', 'log', 'log10', 'exp', 'conjugate',
+                  'sin', 'cos', 'tan',
+                  'arcsin', 'arccos', 'arctan',
+                  'sinh', 'cosh', 'tanh',
+                  'arcsinh',
+                  'arccosh',
+                  'arctanh',
+                  'absolute', 'fabs', 'negative',
+                  'floor', 'ceil',
+                  'logical_not',
+                  'add', 'subtract', 'multiply',
+                  'divide', 'true_divide', 'floor_divide',
+                  'remainder', 'fmod', 'hypot', 'arctan2',
+                  'equal', 'not_equal', 'less_equal', 'greater_equal',
+                  'less', 'greater',
+                  'logical_and', 'logical_or', 'logical_xor']:
+            try:
+                uf = getattr(umath, f)
+            except AttributeError:
+                uf = getattr(fromnumeric, f)
+            mf = getattr(np.ma, f)
+            args = self._create_data()[:uf.nin]
+            with np.errstate():
+                if f in f_invalid_ignore:
+                    np.seterr(invalid='ignore')
+                if f in ['arctanh', 'log', 'log10']:
+                    np.seterr(divide='ignore')
+                ur = uf(*args)
+                mr = mf(*args)
+            assert_(eq(ur.filled(0), mr.filled(0), f))
+            assert_(eqmask(ur.mask, mr.mask))
+
+    def test_reduce(self):
+        a = self._create_data()[0]
+        assert_(not alltrue(a, axis=0))
+        assert_(sometrue(a, axis=0))
+        assert_equal(sum(a[:3], axis=0), 0)
+        assert_equal(product(a, axis=0), 0)
+
+    def test_minmax(self):
+        a = arange(1, 13).reshape(3, 4)
+        amask = masked_where(a < 5, a)
+        assert_equal(amask.max(), a.max())
+        assert_equal(amask.min(), 5)
+        assert_((amask.max(0) == a.max(0)).all())
+        assert_((amask.min(0) == [5, 6, 7, 8]).all())
+        assert_(amask.max(1)[0].mask)
+        assert_(amask.min(1)[0].mask)
+
+    def test_nonzero(self):
+        for t in "?bhilqpBHILQPfdgFDGO":
+            x = array([1, 0, 2, 0], mask=[0, 0, 1, 1])
+            assert_(eq(nonzero(x), [0]))
+
+
+class TestArrayMethods:
+
+    def _create_data(self):
+        x = np.array([8.375, 7.545, 8.828, 8.5, 1.757, 5.928,
+                      8.43, 7.78, 9.865, 5.878, 8.979, 4.732,
+                      3.012, 6.022, 5.095, 3.116, 5.238, 3.957,
+                      6.04, 9.63, 7.712, 3.382, 4.489, 6.479,
+                      7.189, 9.645, 5.395, 4.961, 9.894, 2.893,
+                      7.357, 9.828, 6.272, 3.758, 6.693, 0.993])
+        X = x.reshape(6, 6)
+        XX = x.reshape(3, 2, 2, 3)
+
+        m = np.array([0, 1, 0, 1, 0, 0,
+                      1, 0, 1, 1, 0, 1,
+                      0, 0, 0, 1, 0, 1,
+                      0, 0, 0, 1, 1, 1,
+                      1, 0, 0, 1, 0, 0,
+                      0, 0, 1, 0, 1, 0])
+        mx = array(data=x, mask=m)
+        mX = array(data=X, mask=m.reshape(X.shape))
+        mXX = array(data=XX, mask=m.reshape(XX.shape))
+
+        return x, X, XX, m, mx, mX, mXX
+
+    def test_trace(self):
+        _, X, _, _, _, mX, _ = self._create_data()
+        mXdiag = mX.diagonal()
+        assert_equal(mX.trace(), mX.diagonal().compressed().sum())
+        assert_(eq(mX.trace(),
+                           X.trace() - sum(mXdiag.mask * X.diagonal(),
+                                           axis=0)))
+
+    def test_clip(self):
+        x, _, _, _, mx, _, _ = self._create_data()
+        clipped = mx.clip(2, 8)
+        assert_(eq(clipped.mask, mx.mask))
+        assert_(eq(clipped._data, x.clip(2, 8)))
+        assert_(eq(clipped._data, mx._data.clip(2, 8)))
+
+    def test_ptp(self):
+        _, X, _, m, mx, mX, _ = self._create_data()
+        n, m = X.shape
+        # print(type(mx), mx.compressed())
+        # raise Exception()
+        assert_equal(mx.ptp(), np.ptp(mx.compressed()))
+        rows = np.zeros(n, np.float64)
+        cols = np.zeros(m, np.float64)
+        for k in range(m):
+            cols[k] = np.ptp(mX[:, k].compressed())
+        for k in range(n):
+            rows[k] = np.ptp(mX[k].compressed())
+        assert_(eq(mX.ptp(0), cols))
+        assert_(eq(mX.ptp(1), rows))
+
+    def test_swapaxes(self):
+        _, _, _, _, _, mX, mXX = self._create_data()
+        mXswapped = mX.swapaxes(0, 1)
+        assert_(eq(mXswapped[-1], mX[:, -1]))
+        mXXswapped = mXX.swapaxes(0, 2)
+        assert_equal(mXXswapped.shape, (2, 2, 3, 3))
+
+    def test_cumprod(self):
+        mX = self._create_data()[5]
+        mXcp = mX.cumprod(0)
+        assert_(eq(mXcp._data, mX.filled(1).cumprod(0)))
+        mXcp = mX.cumprod(1)
+        assert_(eq(mXcp._data, mX.filled(1).cumprod(1)))
+
+    def test_cumsum(self):
+        mX = self._create_data()[5]
+        mXcp = mX.cumsum(0)
+        assert_(eq(mXcp._data, mX.filled(0).cumsum(0)))
+        mXcp = mX.cumsum(1)
+        assert_(eq(mXcp._data, mX.filled(0).cumsum(1)))
+
+    def test_varstd(self):
+        _, X, XX, _, _, mX, mXX = self._create_data()
+        assert_(eq(mX.var(axis=None), mX.compressed().var()))
+        assert_(eq(mX.std(axis=None), mX.compressed().std()))
+        assert_(eq(mXX.var(axis=3).shape, XX.var(axis=3).shape))
+        assert_(eq(mX.var().shape, X.var().shape))
+        (mXvar0, mXvar1) = (mX.var(axis=0), mX.var(axis=1))
+        for k in range(6):
+            assert_(eq(mXvar1[k], mX[k].compressed().var()))
+            assert_(eq(mXvar0[k], mX[:, k].compressed().var()))
+            assert_(eq(np.sqrt(mXvar0[k]),
+                               mX[:, k].compressed().std()))
+
+
+def eqmask(m1, m2):
+    if m1 is nomask:
+        return m2 is nomask
+    if m2 is nomask:
+        return m1 is nomask
+    return (m1 == m2).all()
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..23318a537e59ff35ffae3125e6d2595305b65fd4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_regression.py
@@ -0,0 +1,83 @@
+import numpy as np
+from numpy.testing import assert_, assert_array_equal
+
+
+class TestRegression:
+    def test_masked_array_create(self):
+        # Ticket #17
+        x = np.ma.masked_array([0, 1, 2, 3, 0, 4, 5, 6],
+                               mask=[0, 0, 0, 1, 1, 1, 0, 0])
+        assert_array_equal(np.ma.nonzero(x), [[1, 2, 6, 7]])
+
+    def test_masked_array(self):
+        # Ticket #61
+        np.ma.array(1, mask=[1])
+
+    def test_mem_masked_where(self):
+        # Ticket #62
+        from numpy.ma import MaskType, masked_where
+        a = np.zeros((1, 1))
+        b = np.zeros(a.shape, MaskType)
+        c = masked_where(b, a)
+        a - c
+
+    def test_masked_array_multiply(self):
+        # Ticket #254
+        a = np.ma.zeros((4, 1))
+        a[2, 0] = np.ma.masked
+        b = np.zeros((4, 2))
+        a * b
+        b * a
+
+    def test_masked_array_repeat(self):
+        # Ticket #271
+        np.ma.array([1], mask=False).repeat(10)
+
+    def test_masked_array_repr_unicode(self):
+        # Ticket #1256
+        repr(np.ma.array("Unicode"))
+
+    def test_atleast_2d(self):
+        # Ticket #1559
+        a = np.ma.masked_array([0.0, 1.2, 3.5], mask=[False, True, False])
+        b = np.atleast_2d(a)
+        assert_(a.mask.ndim == 1)
+        assert_(b.mask.ndim == 2)
+
+    def test_set_fill_value_unicode_py3(self):
+        # Ticket #2733
+        a = np.ma.masked_array(['a', 'b', 'c'], mask=[1, 0, 0])
+        a.fill_value = 'X'
+        assert_(a.fill_value == 'X')
+
+    def test_var_sets_maskedarray_scalar(self):
+        # Issue gh-2757
+        a = np.ma.array(np.arange(5), mask=True)
+        mout = np.ma.array(-1, dtype=float)
+        a.var(out=mout)
+        assert_(mout._data == 0)
+
+    def test_mask_not_backmangled(self):
+        # See gh-10314.  Test case taken from gh-3140.
+        a = np.ma.MaskedArray([1., 2.], mask=[False, False])
+        assert_(a.mask.shape == (2,))
+        b = np.tile(a, (2, 1))
+        # Check that the above no longer changes a.shape to (1, 2)
+        assert_(a.mask.shape == (2,))
+        assert_(b.shape == (2, 2))
+        assert_(b.mask.shape == (2, 2))
+
+    def test_empty_list_on_structured(self):
+        # See gh-12464. Indexing with empty list should give empty result.
+        ma = np.ma.MaskedArray([(1, 1.), (2, 2.), (3, 3.)], dtype='i4,f4')
+        assert_array_equal(ma[[]], ma[:0])
+
+    def test_masked_array_tobytes_fortran(self):
+        ma = np.ma.arange(4).reshape((2, 2))
+        assert_array_equal(ma.tobytes(order='F'), ma.T.tobytes())
+
+    def test_structured_array(self):
+        # see gh-22041
+        np.ma.array((1, (b"", b"")),
+                    dtype=[("x", np.int_),
+                          ("y", [("i", np.void), ("j", np.void)])])
diff --git a/python/user_packages/Python313/site-packages/numpy/ma/tests/test_subclassing.py b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_subclassing.py
new file mode 100644
index 0000000000000000000000000000000000000000..efa08f61c6505dc73d08aca63fcaf3b5ee8cb2ea
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/ma/tests/test_subclassing.py
@@ -0,0 +1,469 @@
+"""Tests suite for MaskedArray & subclassing.
+
+:author: Pierre Gerard-Marchant
+:contact: pierregm_at_uga_dot_edu
+
+"""
+import numpy as np
+from numpy.lib.mixins import NDArrayOperatorsMixin
+from numpy.ma.core import (
+    MaskedArray,
+    add,
+    arange,
+    array,
+    asanyarray,
+    asarray,
+    divide,
+    hypot,
+    log,
+    masked,
+    masked_array,
+    nomask,
+)
+from numpy.ma.testutils import assert_equal
+from numpy.testing import assert_, assert_raises
+
+# from numpy.ma.core import (
+
+def assert_startswith(a, b):
+    # produces a better error message than assert_(a.startswith(b))
+    assert_equal(a[:len(b)], b)
+
+class SubArray(np.ndarray):
+    # Defines a generic np.ndarray subclass, that stores some metadata
+    # in the  dictionary `info`.
+    def __new__(cls, arr, info={}):
+        x = np.asanyarray(arr).view(cls)
+        x.info = info.copy()
+        return x
+
+    def __array_finalize__(self, obj):
+        super().__array_finalize__(obj)
+        self.info = getattr(obj, 'info', {}).copy()
+
+    def __add__(self, other):
+        result = super().__add__(other)
+        result.info['added'] = result.info.get('added', 0) + 1
+        return result
+
+    def __iadd__(self, other):
+        result = super().__iadd__(other)
+        result.info['iadded'] = result.info.get('iadded', 0) + 1
+        return result
+
+
+subarray = SubArray
+
+
+class SubMaskedArray(MaskedArray):
+    """Pure subclass of MaskedArray, keeping some info on subclass."""
+    def __new__(cls, info=None, **kwargs):
+        obj = super().__new__(cls, **kwargs)
+        obj._optinfo['info'] = info
+        return obj
+
+
+class MSubArray(SubArray, MaskedArray):
+
+    def __new__(cls, data, info={}, mask=nomask):
+        subarr = SubArray(data, info)
+        _data = MaskedArray.__new__(cls, data=subarr, mask=mask)
+        _data.info = subarr.info
+        return _data
+
+    @property
+    def _series(self):
+        _view = self.view(MaskedArray)
+        _view._sharedmask = False
+        return _view
+
+
+msubarray = MSubArray
+
+
+# Also a subclass that overrides __str__, __repr__ and __setitem__, disallowing
+# setting to non-class values (and thus np.ma.core.masked_print_option)
+# and overrides __array_wrap__, updating the info dict, to check that this
+# doesn't get destroyed by MaskedArray._update_from.  But this one also needs
+# its own iterator...
+class CSAIterator:
+    """
+    Flat iterator object that uses its own setter/getter
+    (works around ndarray.flat not propagating subclass setters/getters
+    see https://github.com/numpy/numpy/issues/4564)
+    roughly following MaskedIterator
+    """
+    def __init__(self, a):
+        self._original = a
+        self._dataiter = a.view(np.ndarray).flat
+
+    def __iter__(self):
+        return self
+
+    def __getitem__(self, indx):
+        out = self._dataiter.__getitem__(indx)
+        if not isinstance(out, np.ndarray):
+            out = out.__array__()
+        out = out.view(type(self._original))
+        return out
+
+    def __setitem__(self, index, value):
+        self._dataiter[index] = self._original._validate_input(value)
+
+    def __next__(self):
+        return next(self._dataiter).__array__().view(type(self._original))
+
+
+class ComplicatedSubArray(SubArray):
+
+    def __str__(self):
+        return f'myprefix {self.view(SubArray)} mypostfix'
+
+    def __repr__(self):
+        # Return a repr that does not start with 'name('
+        return f'<{self.__class__.__name__} {self}>'
+
+    def _validate_input(self, value):
+        if not isinstance(value, ComplicatedSubArray):
+            raise ValueError("Can only set to MySubArray values")
+        return value
+
+    def __setitem__(self, item, value):
+        # validation ensures direct assignment with ndarray or
+        # masked_print_option will fail
+        super().__setitem__(item, self._validate_input(value))
+
+    def __getitem__(self, item):
+        # ensure getter returns our own class also for scalars
+        value = super().__getitem__(item)
+        if not isinstance(value, np.ndarray):  # scalar
+            value = value.__array__().view(ComplicatedSubArray)
+        return value
+
+    @property
+    def flat(self):
+        return CSAIterator(self)
+
+    @flat.setter
+    def flat(self, value):
+        y = self.ravel()
+        y[:] = value
+
+    def __array_wrap__(self, obj, context=None, return_scalar=False):
+        obj = super().__array_wrap__(obj, context, return_scalar)
+        if context is not None and context[0] is np.multiply:
+            obj.info['multiplied'] = obj.info.get('multiplied', 0) + 1
+
+        return obj
+
+
+class WrappedArray(NDArrayOperatorsMixin):
+    """
+    Wrapping a MaskedArray rather than subclassing to test that
+    ufunc deferrals are commutative.
+    See: https://github.com/numpy/numpy/issues/15200)
+    """
+    __slots__ = ('_array', 'attrs')
+    __array_priority__ = 20
+
+    def __init__(self, array, **attrs):
+        self._array = array
+        self.attrs = attrs
+
+    def __repr__(self):
+        return f"{self.__class__.__name__}(\n{self._array}\n{self.attrs}\n)"
+
+    def __array__(self, dtype=None, copy=None):
+        return np.asarray(self._array)
+
+    def __array_ufunc__(self, ufunc, method, *inputs, **kwargs):
+        if method == '__call__':
+            inputs = [arg._array if isinstance(arg, self.__class__) else arg
+                      for arg in inputs]
+            return self.__class__(ufunc(*inputs, **kwargs), **self.attrs)
+        else:
+            return NotImplemented
+
+
+class TestSubclassing:
+    # Test suite for masked subclasses of ndarray.
+
+    def _create_data(self):
+        x = np.arange(5, dtype='float')
+        mx = msubarray(x, mask=[0, 1, 0, 0, 0])
+        return x, mx
+
+    def test_data_subclassing(self):
+        # Tests whether the subclass is kept.
+        x = np.arange(5)
+        m = [0, 0, 1, 0, 0]
+        xsub = SubArray(x)
+        xmsub = masked_array(xsub, mask=m)
+        assert_(isinstance(xmsub, MaskedArray))
+        assert_equal(xmsub._data, xsub)
+        assert_(isinstance(xmsub._data, SubArray))
+
+    def test_maskedarray_subclassing(self):
+        # Tests subclassing MaskedArray
+        mx = self._create_data()[1]
+        assert_(isinstance(mx._data, subarray))
+
+    def test_masked_unary_operations(self):
+        # Tests masked_unary_operation
+        x, mx = self._create_data()
+        with np.errstate(divide='ignore'):
+            assert_(isinstance(log(mx), msubarray))
+            assert_equal(log(x), np.log(x))
+
+    def test_masked_binary_operations(self):
+        # Tests masked_binary_operation
+        x, mx = self._create_data()
+        # Result should be a msubarray
+        assert_(isinstance(add(mx, mx), msubarray))
+        assert_(isinstance(add(mx, x), msubarray))
+        # Result should work
+        assert_equal(add(mx, x), mx + x)
+        assert_(isinstance(add(mx, mx)._data, subarray))
+        assert_(isinstance(add.outer(mx, mx), msubarray))
+        assert_(isinstance(hypot(mx, mx), msubarray))
+        assert_(isinstance(hypot(mx, x), msubarray))
+
+    def test_masked_binary_operations2(self):
+        # Tests domained_masked_binary_operation
+        x, mx = self._create_data()
+        xmx = masked_array(mx.data.__array__(), mask=mx.mask)
+        assert_(isinstance(divide(mx, mx), msubarray))
+        assert_(isinstance(divide(mx, x), msubarray))
+        assert_equal(divide(mx, mx), divide(xmx, xmx))
+
+    def test_attributepropagation(self):
+        x = array(arange(5), mask=[0] + [1] * 4)
+        my = masked_array(subarray(x))
+        ym = msubarray(x)
+        #
+        z = (my + 1)
+        assert_(isinstance(z, MaskedArray))
+        assert_(not isinstance(z, MSubArray))
+        assert_(isinstance(z._data, SubArray))
+        assert_equal(z._data.info, {})
+        #
+        z = (ym + 1)
+        assert_(isinstance(z, MaskedArray))
+        assert_(isinstance(z, MSubArray))
+        assert_(isinstance(z._data, SubArray))
+        assert_(z._data.info['added'] > 0)
+        # Test that inplace methods from data get used (gh-4617)
+        ym += 1
+        assert_(isinstance(ym, MaskedArray))
+        assert_(isinstance(ym, MSubArray))
+        assert_(isinstance(ym._data, SubArray))
+        assert_(ym._data.info['iadded'] > 0)
+        #
+        ym._set_mask([1, 0, 0, 0, 1])
+        assert_equal(ym._mask, [1, 0, 0, 0, 1])
+        ym._series._set_mask([0, 0, 0, 0, 1])
+        assert_equal(ym._mask, [0, 0, 0, 0, 1])
+        #
+        xsub = subarray(x, info={'name': 'x'})
+        mxsub = masked_array(xsub)
+        assert_(hasattr(mxsub, 'info'))
+        assert_equal(mxsub.info, xsub.info)
+
+    def test_subclasspreservation(self):
+        # Checks that masked_array(...,subok=True) preserves the class.
+        x = np.arange(5)
+        m = [0, 0, 1, 0, 0]
+        xinfo = list(zip(x, m))
+        xsub = MSubArray(x, mask=m, info={'xsub': xinfo})
+        #
+        mxsub = masked_array(xsub, subok=False)
+        assert_(not isinstance(mxsub, MSubArray))
+        assert_(isinstance(mxsub, MaskedArray))
+        assert_equal(mxsub._mask, m)
+        #
+        mxsub = asarray(xsub)
+        assert_(not isinstance(mxsub, MSubArray))
+        assert_(isinstance(mxsub, MaskedArray))
+        assert_equal(mxsub._mask, m)
+        #
+        mxsub = masked_array(xsub, subok=True)
+        assert_(isinstance(mxsub, MSubArray))
+        assert_equal(mxsub.info, xsub.info)
+        assert_equal(mxsub._mask, xsub._mask)
+        #
+        mxsub = asanyarray(xsub)
+        assert_(isinstance(mxsub, MSubArray))
+        assert_equal(mxsub.info, xsub.info)
+        assert_equal(mxsub._mask, m)
+
+    def test_subclass_items(self):
+        """test that getter and setter go via baseclass"""
+        x = np.arange(5)
+        xcsub = ComplicatedSubArray(x)
+        mxcsub = masked_array(xcsub, mask=[True, False, True, False, False])
+        # getter should  return a ComplicatedSubArray, even for single item
+        # first check we wrote ComplicatedSubArray correctly
+        assert_(isinstance(xcsub[1], ComplicatedSubArray))
+        assert_(isinstance(xcsub[1, ...], ComplicatedSubArray))
+        assert_(isinstance(xcsub[1:4], ComplicatedSubArray))
+
+        # now that it propagates inside the MaskedArray
+        assert_(isinstance(mxcsub[1], ComplicatedSubArray))
+        assert_(isinstance(mxcsub[1, ...].data, ComplicatedSubArray))
+        assert_(mxcsub[0] is masked)
+        assert_(isinstance(mxcsub[0, ...].data, ComplicatedSubArray))
+        assert_(isinstance(mxcsub[1:4].data, ComplicatedSubArray))
+
+        # also for flattened version (which goes via MaskedIterator)
+        assert_(isinstance(mxcsub.flat[1].data, ComplicatedSubArray))
+        assert_(mxcsub.flat[0] is masked)
+        assert_(isinstance(mxcsub.flat[1:4].base, ComplicatedSubArray))
+
+        # setter should only work with ComplicatedSubArray input
+        # first check we wrote ComplicatedSubArray correctly
+        assert_raises(ValueError, xcsub.__setitem__, 1, x[4])
+        # now that it propagates inside the MaskedArray
+        assert_raises(ValueError, mxcsub.__setitem__, 1, x[4])
+        assert_raises(ValueError, mxcsub.__setitem__, slice(1, 4), x[1:4])
+        mxcsub[1] = xcsub[4]
+        mxcsub[1:4] = xcsub[1:4]
+        # also for flattened version (which goes via MaskedIterator)
+        assert_raises(ValueError, mxcsub.flat.__setitem__, 1, x[4])
+        assert_raises(ValueError, mxcsub.flat.__setitem__, slice(1, 4), x[1:4])
+        mxcsub.flat[1] = xcsub[4]
+        mxcsub.flat[1:4] = xcsub[1:4]
+
+    def test_subclass_nomask_items(self):
+        x = np.arange(5)
+        xcsub = ComplicatedSubArray(x)
+        mxcsub_nomask = masked_array(xcsub)
+
+        assert_(isinstance(mxcsub_nomask[1, ...].data, ComplicatedSubArray))
+        assert_(isinstance(mxcsub_nomask[0, ...].data, ComplicatedSubArray))
+
+        assert_(isinstance(mxcsub_nomask[1], ComplicatedSubArray))
+        assert_(isinstance(mxcsub_nomask[0], ComplicatedSubArray))
+
+    def test_subclass_repr(self):
+        """test that repr uses the name of the subclass
+        and 'array' for np.ndarray"""
+        x = np.arange(5)
+        mx = masked_array(x, mask=[True, False, True, False, False])
+        assert_startswith(repr(mx), 'masked_array')
+        xsub = SubArray(x)
+        mxsub = masked_array(xsub, mask=[True, False, True, False, False])
+        assert_startswith(repr(mxsub),
+            f'masked_{SubArray.__name__}(data=[--, 1, --, 3, 4]')
+
+    def test_subclass_str(self):
+        """test str with subclass that has overridden str, setitem"""
+        # first without override
+        x = np.arange(5)
+        xsub = SubArray(x)
+        mxsub = masked_array(xsub, mask=[True, False, True, False, False])
+        assert_equal(str(mxsub), '[-- 1 -- 3 4]')
+
+        xcsub = ComplicatedSubArray(x)
+        assert_raises(ValueError, xcsub.__setitem__, 0,
+                      np.ma.core.masked_print_option)
+        mxcsub = masked_array(xcsub, mask=[True, False, True, False, False])
+        assert_equal(str(mxcsub), 'myprefix [-- 1 -- 3 4] mypostfix')
+
+    def test_pure_subclass_info_preservation(self):
+        # Test that ufuncs and methods conserve extra information consistently;
+        # see gh-7122.
+        arr1 = SubMaskedArray('test', data=[1, 2, 3, 4, 5, 6])
+        arr2 = SubMaskedArray(data=[0, 1, 2, 3, 4, 5])
+        diff1 = np.subtract(arr1, arr2)
+        assert_('info' in diff1._optinfo)
+        assert_(diff1._optinfo['info'] == 'test')
+        diff2 = arr1 - arr2
+        assert_('info' in diff2._optinfo)
+        assert_(diff2._optinfo['info'] == 'test')
+
+
+class ArrayNoInheritance:
+    """Quantity-like class that does not inherit from ndarray"""
+    def __init__(self, data, units):
+        self.magnitude = data
+        self.units = units
+
+    def __getattr__(self, attr):
+        return getattr(self.magnitude, attr)
+
+
+def test_array_no_inheritance():
+    data_masked = np.ma.array([1, 2, 3], mask=[True, False, True])
+    data_masked_units = ArrayNoInheritance(data_masked, 'meters')
+
+    # Get the masked representation of the Quantity-like class
+    new_array = np.ma.array(data_masked_units)
+    assert_equal(data_masked.data, new_array.data)
+    assert_equal(data_masked.mask, new_array.mask)
+    # Test sharing the mask
+    data_masked.mask = [True, False, False]
+    assert_equal(data_masked.mask, new_array.mask)
+    assert_(new_array.sharedmask)
+
+    # Get the masked representation of the Quantity-like class
+    new_array = np.ma.array(data_masked_units, copy=True)
+    assert_equal(data_masked.data, new_array.data)
+    assert_equal(data_masked.mask, new_array.mask)
+    # Test that the mask is not shared when copy=True
+    data_masked.mask = [True, False, True]
+    assert_equal([True, False, False], new_array.mask)
+    assert_(not new_array.sharedmask)
+
+    # Get the masked representation of the Quantity-like class
+    new_array = np.ma.array(data_masked_units, keep_mask=False)
+    assert_equal(data_masked.data, new_array.data)
+    # The change did not affect the original mask
+    assert_equal(data_masked.mask, [True, False, True])
+    # Test that the mask is False and not shared when keep_mask=False
+    assert_(not new_array.mask)
+    assert_(not new_array.sharedmask)
+
+
+class TestClassWrapping:
+    # Test suite for classes that wrap MaskedArrays
+
+    def _create_data(self):
+        m = np.ma.masked_array([1, 3, 5], mask=[False, True, False])
+        wm = WrappedArray(m)
+        return m, wm
+
+    def test_masked_unary_operations(self):
+        # Tests masked_unary_operation
+        wm = self._create_data()[1]
+        with np.errstate(divide='ignore'):
+            assert_(isinstance(np.log(wm), WrappedArray))
+
+    def test_masked_binary_operations(self):
+        # Tests masked_binary_operation
+        m, wm = self._create_data()
+        # Result should be a WrappedArray
+        assert_(isinstance(np.add(wm, wm), WrappedArray))
+        assert_(isinstance(np.add(m, wm), WrappedArray))
+        assert_(isinstance(np.add(wm, m), WrappedArray))
+        # add and '+' should call the same ufunc
+        assert_equal(np.add(m, wm), m + wm)
+        assert_(isinstance(np.hypot(m, wm), WrappedArray))
+        assert_(isinstance(np.hypot(wm, m), WrappedArray))
+        # Test domained binary operations
+        assert_(isinstance(np.divide(wm, m), WrappedArray))
+        assert_(isinstance(np.divide(m, wm), WrappedArray))
+        assert_equal(np.divide(wm, m) * m, np.divide(m, m) * wm)
+        # Test broadcasting
+        m2 = np.stack([m, m])
+        assert_(isinstance(np.divide(wm, m2), WrappedArray))
+        assert_(isinstance(np.divide(m2, wm), WrappedArray))
+        assert_equal(np.divide(m2, wm), np.divide(wm, m2))
+
+    def test_mixins_have_slots(self):
+        mixin = NDArrayOperatorsMixin()
+        # Should raise an error
+        assert_raises(AttributeError, mixin.__setattr__, "not_a_real_attr", 1)
+
+        m = np.ma.masked_array([1, 3, 5], mask=[False, True, False])
+        wm = WrappedArray(m)
+        assert_raises(AttributeError, wm.__setattr__, "not_an_attr", 2)
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--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_defmatrix.py
@@ -0,0 +1,455 @@
+import collections.abc
+
+import numpy as np
+from numpy import asmatrix, bmat, matrix
+from numpy.linalg import matrix_power
+from numpy.testing import (
+    assert_,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+
+class TestCtor:
+    def test_basic(self):
+        A = np.array([[1, 2], [3, 4]])
+        mA = matrix(A)
+        assert_(np.all(mA.A == A))
+
+        B = bmat("A,A;A,A")
+        C = bmat([[A, A], [A, A]])
+        D = np.array([[1, 2, 1, 2],
+                      [3, 4, 3, 4],
+                      [1, 2, 1, 2],
+                      [3, 4, 3, 4]])
+        assert_(np.all(B.A == D))
+        assert_(np.all(C.A == D))
+
+        E = np.array([[5, 6], [7, 8]])
+        AEresult = matrix([[1, 2, 5, 6], [3, 4, 7, 8]])
+        assert_(np.all(bmat([A, E]) == AEresult))
+
+        vec = np.arange(5)
+        mvec = matrix(vec)
+        assert_(mvec.shape == (1, 5))
+
+    def test_exceptions(self):
+        # Check for ValueError when called with invalid string data.
+        assert_raises(ValueError, matrix, "invalid")
+
+    def test_bmat_nondefault_str(self):
+        A = np.array([[1, 2], [3, 4]])
+        B = np.array([[5, 6], [7, 8]])
+        Aresult = np.array([[1, 2, 1, 2],
+                            [3, 4, 3, 4],
+                            [1, 2, 1, 2],
+                            [3, 4, 3, 4]])
+        mixresult = np.array([[1, 2, 5, 6],
+                              [3, 4, 7, 8],
+                              [5, 6, 1, 2],
+                              [7, 8, 3, 4]])
+        assert_(np.all(bmat("A,A;A,A") == Aresult))
+        assert_(np.all(bmat("A,A;A,A", ldict={'A': B}) == Aresult))
+        assert_raises(TypeError, bmat, "A,A;A,A", gdict={'A': B})
+        assert_(
+            np.all(bmat("A,A;A,A", ldict={'A': A}, gdict={'A': B}) == Aresult))
+        b2 = bmat("A,B;C,D", ldict={'A': A, 'B': B}, gdict={'C': B, 'D': A})
+        assert_(np.all(b2 == mixresult))
+
+
+class TestProperties:
+    def test_sum(self):
+        """Test whether matrix.sum(axis=1) preserves orientation.
+        Fails in NumPy <= 0.9.6.2127.
+        """
+        M = matrix([[1, 2, 0, 0],
+                   [3, 4, 0, 0],
+                   [1, 2, 1, 2],
+                   [3, 4, 3, 4]])
+        sum0 = matrix([8, 12, 4, 6])
+        sum1 = matrix([3, 7, 6, 14]).T
+        sumall = 30
+        assert_array_equal(sum0, M.sum(axis=0))
+        assert_array_equal(sum1, M.sum(axis=1))
+        assert_equal(sumall, M.sum())
+
+        assert_array_equal(sum0, np.sum(M, axis=0))
+        assert_array_equal(sum1, np.sum(M, axis=1))
+        assert_equal(sumall, np.sum(M))
+
+    def test_prod(self):
+        x = matrix([[1, 2, 3], [4, 5, 6]])
+        assert_equal(x.prod(), 720)
+        assert_equal(x.prod(0), matrix([[4, 10, 18]]))
+        assert_equal(x.prod(1), matrix([[6], [120]]))
+
+        assert_equal(np.prod(x), 720)
+        assert_equal(np.prod(x, axis=0), matrix([[4, 10, 18]]))
+        assert_equal(np.prod(x, axis=1), matrix([[6], [120]]))
+
+        y = matrix([0, 1, 3])
+        assert_(y.prod() == 0)
+
+    def test_max(self):
+        x = matrix([[1, 2, 3], [4, 5, 6]])
+        assert_equal(x.max(), 6)
+        assert_equal(x.max(0), matrix([[4, 5, 6]]))
+        assert_equal(x.max(1), matrix([[3], [6]]))
+
+        assert_equal(np.max(x), 6)
+        assert_equal(np.max(x, axis=0), matrix([[4, 5, 6]]))
+        assert_equal(np.max(x, axis=1), matrix([[3], [6]]))
+
+    def test_min(self):
+        x = matrix([[1, 2, 3], [4, 5, 6]])
+        assert_equal(x.min(), 1)
+        assert_equal(x.min(0), matrix([[1, 2, 3]]))
+        assert_equal(x.min(1), matrix([[1], [4]]))
+
+        assert_equal(np.min(x), 1)
+        assert_equal(np.min(x, axis=0), matrix([[1, 2, 3]]))
+        assert_equal(np.min(x, axis=1), matrix([[1], [4]]))
+
+    def test_ptp(self):
+        x = np.arange(4).reshape((2, 2))
+        mx = x.view(np.matrix)
+        assert_(mx.ptp() == 3)
+        assert_(np.all(mx.ptp(0) == np.array([2, 2])))
+        assert_(np.all(mx.ptp(1) == np.array([1, 1])))
+
+    def test_var(self):
+        x = np.arange(9).reshape((3, 3))
+        mx = x.view(np.matrix)
+        assert_equal(x.var(ddof=0), mx.var(ddof=0))
+        assert_equal(x.var(ddof=1), mx.var(ddof=1))
+
+    def test_basic(self):
+        import numpy.linalg as linalg
+
+        A = np.array([[1., 2.],
+                      [3., 4.]])
+        mA = matrix(A)
+        assert_(np.allclose(linalg.inv(A), mA.I))
+        assert_(np.all(np.array(np.transpose(A) == mA.T)))
+        assert_(np.all(np.array(np.transpose(A) == mA.H)))
+        assert_(np.all(A == mA.A))
+
+        B = A + 2j * A
+        mB = matrix(B)
+        assert_(np.allclose(linalg.inv(B), mB.I))
+        assert_(np.all(np.array(np.transpose(B) == mB.T)))
+        assert_(np.all(np.array(np.transpose(B).conj() == mB.H)))
+
+    def test_pinv(self):
+        x = matrix(np.arange(6).reshape(2, 3))
+        xpinv = matrix([[-0.77777778,  0.27777778],
+                        [-0.11111111,  0.11111111],
+                        [ 0.55555556, -0.05555556]])
+        assert_almost_equal(x.I, xpinv)
+
+    def test_comparisons(self):
+        A = np.arange(100).reshape(10, 10)
+        mA = matrix(A)
+        mB = matrix(A) + 0.1
+        assert_(np.all(mB == A + 0.1))
+        assert_(np.all(mB == matrix(A + 0.1)))
+        assert_(not np.any(mB == matrix(A - 0.1)))
+        assert_(np.all(mA < mB))
+        assert_(np.all(mA <= mB))
+        assert_(np.all(mA <= mA))
+        assert_(not np.any(mA < mA))
+
+        assert_(not np.any(mB < mA))
+        assert_(np.all(mB >= mA))
+        assert_(np.all(mB >= mB))
+        assert_(not np.any(mB > mB))
+
+        assert_(np.all(mA == mA))
+        assert_(not np.any(mA == mB))
+        assert_(np.all(mB != mA))
+
+        assert_(not np.all(abs(mA) > 0))
+        assert_(np.all(abs(mB > 0)))
+
+    def test_asmatrix(self):
+        A = np.arange(100).reshape(10, 10)
+        mA = asmatrix(A)
+        A[0, 0] = -10
+        assert_(A[0, 0] == mA[0, 0])
+
+    def test_noaxis(self):
+        A = matrix([[1, 0], [0, 1]])
+        assert_(A.sum() == matrix(2))
+        assert_(A.mean() == matrix(0.5))
+
+    def test_repr(self):
+        A = matrix([[1, 0], [0, 1]])
+        assert_(repr(A) == "matrix([[1, 0],\n        [0, 1]])")
+
+    def test_make_bool_matrix_from_str(self):
+        A = matrix('True; True; False')
+        B = matrix([[True], [True], [False]])
+        assert_array_equal(A, B)
+
+class TestCasting:
+    def test_basic(self):
+        A = np.arange(100).reshape(10, 10)
+        mA = matrix(A)
+
+        mB = mA.copy()
+        O = np.ones((10, 10), np.float64) * 0.1
+        mB = mB + O
+        assert_(mB.dtype.type == np.float64)
+        assert_(np.all(mA != mB))
+        assert_(np.all(mB == mA + 0.1))
+
+        mC = mA.copy()
+        O = np.ones((10, 10), np.complex128)
+        mC = mC * O
+        assert_(mC.dtype.type == np.complex128)
+        assert_(np.all(mA != mB))
+
+
+class TestAlgebra:
+    def test_basic(self):
+        import numpy.linalg as linalg
+
+        A = np.array([[1., 2.], [3., 4.]])
+        mA = matrix(A)
+
+        B = np.identity(2)
+        for i in range(6):
+            assert_(np.allclose((mA ** i).A, B))
+            B = np.dot(B, A)
+
+        Ainv = linalg.inv(A)
+        B = np.identity(2)
+        for i in range(6):
+            assert_(np.allclose((mA ** -i).A, B))
+            B = np.dot(B, Ainv)
+
+        assert_(np.allclose((mA * mA).A, np.dot(A, A)))
+        assert_(np.allclose((mA + mA).A, (A + A)))
+        assert_(np.allclose((3 * mA).A, (3 * A)))
+
+        mA2 = matrix(A)
+        mA2 *= 3
+        assert_(np.allclose(mA2.A, 3 * A))
+
+    def test_pow(self):
+        """Test raising a matrix to an integer power works as expected."""
+        m = matrix("1. 2.; 3. 4.")
+        m2 = m.copy()
+        m2 **= 2
+        mi = m.copy()
+        mi **= -1
+        m4 = m2.copy()
+        m4 **= 2
+        assert_array_almost_equal(m2, m**2)
+        assert_array_almost_equal(m4, np.dot(m2, m2))
+        assert_array_almost_equal(np.dot(mi, m), np.eye(2))
+
+    def test_scalar_type_pow(self):
+        m = matrix([[1, 2], [3, 4]])
+        for scalar_t in [np.int8, np.uint8]:
+            two = scalar_t(2)
+            assert_array_almost_equal(m ** 2, m ** two)
+
+    def test_notimplemented(self):
+        '''Check that 'not implemented' operations produce a failure.'''
+        A = matrix([[1., 2.],
+                    [3., 4.]])
+
+        # __rpow__
+        with assert_raises(TypeError):
+            1.0**A
+
+        # __mul__ with something not a list, ndarray, tuple, or scalar
+        with assert_raises(TypeError):
+            A * object()
+
+
+class TestMatrixReturn:
+    def test_instance_methods(self):
+        a = matrix([1.0], dtype='f8')
+        methodargs = {
+            'astype': ('intc',),
+            'clip': (0.0, 1.0),
+            'compress': ([1],),
+            'repeat': (1,),
+            'reshape': (1,),
+            'swapaxes': (0, 0),
+            'dot': np.array([1.0]),
+            }
+        excluded_methods = [
+            'argmin', 'choose', 'dump', 'dumps', 'fill', 'getfield',
+            'getA', 'getA1', 'item', 'nonzero', 'put', 'putmask', 'resize',
+            'searchsorted', 'setflags', 'setfield', 'sort',
+            'partition', 'argpartition', 'to_device',
+            'take', 'tofile', 'tolist', 'tobytes', 'all', 'any',
+            'sum', 'argmax', 'argmin', 'min', 'max', 'mean', 'var', 'ptp',
+            'prod', 'std', 'ctypes', 'bitwise_count',
+            ]
+        for attrib in dir(a):
+            if attrib.startswith('_') or attrib in excluded_methods:
+                continue
+            f = getattr(a, attrib)
+            if isinstance(f, collections.abc.Callable):
+                # reset contents of a
+                a.astype('f8')
+                a.fill(1.0)
+                args = methodargs.get(attrib, ())
+                b = f(*args)
+                assert_(type(b) is matrix, f"{attrib}")
+        assert_(type(a.real) is matrix)
+        assert_(type(a.imag) is matrix)
+        c, d = matrix([0.0]).nonzero()
+        assert_(type(c) is np.ndarray)
+        assert_(type(d) is np.ndarray)
+
+
+class TestIndexing:
+    def test_basic(self):
+        x = asmatrix(np.zeros((3, 2), float))
+        y = np.zeros((3, 1), float)
+        y[:, 0] = [0.8, 0.2, 0.3]
+        x[:, 1] = y > 0.5
+        assert_equal(x, [[0, 1], [0, 0], [0, 0]])
+
+
+class TestNewScalarIndexing:
+    a = matrix([[1, 2], [3, 4]])
+
+    def test_dimesions(self):
+        a = self.a
+        x = a[0]
+        assert_equal(x.ndim, 2)
+
+    def test_array_from_matrix_list(self):
+        a = self.a
+        x = np.array([a, a])
+        assert_equal(x.shape, [2, 2, 2])
+
+    def test_array_to_list(self):
+        a = self.a
+        assert_equal(a.tolist(), [[1, 2], [3, 4]])
+
+    def test_fancy_indexing(self):
+        a = self.a
+        x = a[1, [0, 1, 0]]
+        assert_(isinstance(x, matrix))
+        assert_equal(x, matrix([[3,  4,  3]]))
+        x = a[[1, 0]]
+        assert_(isinstance(x, matrix))
+        assert_equal(x, matrix([[3, 4], [1, 2]]))
+        x = a[[[1], [0]], [[1, 0], [0, 1]]]
+        assert_(isinstance(x, matrix))
+        assert_equal(x, matrix([[4, 3], [1, 2]]))
+
+    def test_matrix_element(self):
+        x = matrix([[1, 2, 3], [4, 5, 6]])
+        assert_equal(x[0][0], matrix([[1, 2, 3]]))
+        assert_equal(x[0][0].shape, (1, 3))
+        assert_equal(x[0].shape, (1, 3))
+        assert_equal(x[:, 0].shape, (2, 1))
+
+        x = matrix(0)
+        assert_equal(x[0, 0], 0)
+        assert_equal(x[0], 0)
+        assert_equal(x[:, 0].shape, x.shape)
+
+    def test_scalar_indexing(self):
+        x = asmatrix(np.zeros((3, 2), float))
+        assert_equal(x[0, 0], x[0][0])
+
+    def test_row_column_indexing(self):
+        x = asmatrix(np.eye(2))
+        assert_array_equal(x[0, :], [[1, 0]])
+        assert_array_equal(x[1, :], [[0, 1]])
+        assert_array_equal(x[:, 0], [[1], [0]])
+        assert_array_equal(x[:, 1], [[0], [1]])
+
+    def test_boolean_indexing(self):
+        A = np.arange(6)
+        A.shape = (3, 2)
+        x = asmatrix(A)
+        assert_array_equal(x[:, np.array([True, False])], x[:, 0])
+        assert_array_equal(x[np.array([True, False, False]), :], x[0, :])
+
+    def test_list_indexing(self):
+        A = np.arange(6)
+        A.shape = (3, 2)
+        x = asmatrix(A)
+        assert_array_equal(x[:, [1, 0]], x[:, ::-1])
+        assert_array_equal(x[[2, 1, 0], :], x[::-1, :])
+
+
+class TestPower:
+    def test_returntype(self):
+        a = np.array([[0, 1], [0, 0]])
+        assert_(type(matrix_power(a, 2)) is np.ndarray)
+        a = asmatrix(a)
+        assert_(type(matrix_power(a, 2)) is matrix)
+
+    def test_list(self):
+        assert_array_equal(matrix_power([[0, 1], [0, 0]], 2), [[0, 0], [0, 0]])
+
+
+class TestShape:
+
+    a = np.array([[1], [2]])
+    m = matrix([[1], [2]])
+
+    def test_shape(self):
+        assert_equal(self.a.shape, (2, 1))
+        assert_equal(self.m.shape, (2, 1))
+
+    def test_numpy_ravel(self):
+        assert_equal(np.ravel(self.a).shape, (2,))
+        assert_equal(np.ravel(self.m).shape, (2,))
+
+    def test_member_ravel(self):
+        assert_equal(self.a.ravel().shape, (2,))
+        assert_equal(self.m.ravel().shape, (1, 2))
+
+    def test_member_flatten(self):
+        assert_equal(self.a.flatten().shape, (2,))
+        assert_equal(self.m.flatten().shape, (1, 2))
+
+    def test_numpy_ravel_order(self):
+        x = np.array([[1, 2, 3], [4, 5, 6]])
+        assert_equal(np.ravel(x), [1, 2, 3, 4, 5, 6])
+        assert_equal(np.ravel(x, order='F'), [1, 4, 2, 5, 3, 6])
+        assert_equal(np.ravel(x.T), [1, 4, 2, 5, 3, 6])
+        assert_equal(np.ravel(x.T, order='A'), [1, 2, 3, 4, 5, 6])
+        x = matrix([[1, 2, 3], [4, 5, 6]])
+        assert_equal(np.ravel(x), [1, 2, 3, 4, 5, 6])
+        assert_equal(np.ravel(x, order='F'), [1, 4, 2, 5, 3, 6])
+        assert_equal(np.ravel(x.T), [1, 4, 2, 5, 3, 6])
+        assert_equal(np.ravel(x.T, order='A'), [1, 2, 3, 4, 5, 6])
+
+    def test_matrix_ravel_order(self):
+        x = matrix([[1, 2, 3], [4, 5, 6]])
+        assert_equal(x.ravel(), [[1, 2, 3, 4, 5, 6]])
+        assert_equal(x.ravel(order='F'), [[1, 4, 2, 5, 3, 6]])
+        assert_equal(x.T.ravel(), [[1, 4, 2, 5, 3, 6]])
+        assert_equal(x.T.ravel(order='A'), [[1, 2, 3, 4, 5, 6]])
+
+    def test_array_memory_sharing(self):
+        assert_(np.may_share_memory(self.a, self.a.ravel()))
+        assert_(not np.may_share_memory(self.a, self.a.flatten()))
+
+    def test_matrix_memory_sharing(self):
+        assert_(np.may_share_memory(self.m, self.m.ravel()))
+        assert_(not np.may_share_memory(self.m, self.m.flatten()))
+
+    def test_expand_dims_matrix(self):
+        # matrices are always 2d - so expand_dims only makes sense when the
+        # type is changed away from matrix.
+        a = np.arange(10).reshape((2, 5)).view(np.matrix)
+        expanded = np.expand_dims(a, axis=1)
+        assert_equal(expanded.ndim, 3)
+        assert_(not isinstance(expanded, np.matrix))
diff --git a/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_interaction.py b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_interaction.py
new file mode 100644
index 0000000000000000000000000000000000000000..2386cfb77f78d5121c653e66a11df6343cedc0d2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_interaction.py
@@ -0,0 +1,360 @@
+"""Tests of interaction of matrix with other parts of numpy.
+
+Note that tests with MaskedArray and linalg are done in separate files.
+"""
+import textwrap
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy.testing import (
+    assert_,
+    assert_almost_equal,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+def test_fancy_indexing():
+    # The matrix class messes with the shape. While this is always
+    # weird (getitem is not used, it does not have setitem nor knows
+    # about fancy indexing), this tests gh-3110
+    # 2018-04-29: moved here from core.tests.test_index.
+    m = np.matrix([[1, 2], [3, 4]])
+
+    assert_(isinstance(m[[0, 1, 0], :], np.matrix))
+
+    # gh-3110. Note the transpose currently because matrices do *not*
+    # support dimension fixing for fancy indexing correctly.
+    x = np.asmatrix(np.arange(50).reshape(5, 10))
+    assert_equal(x[:2, np.array(-1)], x[:2, -1].T)
+
+
+def test_polynomial_mapdomain():
+    # test that polynomial preserved matrix subtype.
+    # 2018-04-29: moved here from polynomial.tests.polyutils.
+    dom1 = [0, 4]
+    dom2 = [1, 3]
+    x = np.matrix([dom1, dom1])
+    res = np.polynomial.polyutils.mapdomain(x, dom1, dom2)
+    assert_(isinstance(res, np.matrix))
+
+
+def test_sort_matrix_none():
+    # 2018-04-29: moved here from core.tests.test_multiarray
+    a = np.matrix([[2, 1, 0]])
+    actual = np.sort(a, axis=None)
+    expected = np.matrix([[0, 1, 2]])
+    assert_equal(actual, expected)
+    assert_(type(expected) is np.matrix)
+
+
+def test_partition_matrix_none():
+    # gh-4301
+    # 2018-04-29: moved here from core.tests.test_multiarray
+    a = np.matrix([[2, 1, 0]])
+    actual = np.partition(a, 1, axis=None)
+    expected = np.matrix([[0, 1, 2]])
+    assert_equal(actual, expected)
+    assert_(type(expected) is np.matrix)
+
+
+def test_dot_scalar_and_matrix_of_objects():
+    # Ticket #2469
+    # 2018-04-29: moved here from core.tests.test_multiarray
+    arr = np.matrix([1, 2], dtype=object)
+    desired = np.matrix([[3, 6]], dtype=object)
+    assert_equal(np.dot(arr, 3), desired)
+    assert_equal(np.dot(3, arr), desired)
+
+
+def test_inner_scalar_and_matrix():
+    # 2018-04-29: moved here from core.tests.test_multiarray
+    for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?':
+        sca = np.array(3, dtype=dt)[()]
+        arr = np.matrix([[1, 2], [3, 4]], dtype=dt)
+        desired = np.matrix([[3, 6], [9, 12]], dtype=dt)
+        assert_equal(np.inner(arr, sca), desired)
+        assert_equal(np.inner(sca, arr), desired)
+
+
+def test_inner_scalar_and_matrix_of_objects():
+    # Ticket #4482
+    # 2018-04-29: moved here from core.tests.test_multiarray
+    arr = np.matrix([1, 2], dtype=object)
+    desired = np.matrix([[3, 6]], dtype=object)
+    assert_equal(np.inner(arr, 3), desired)
+    assert_equal(np.inner(3, arr), desired)
+
+
+def test_iter_allocate_output_subtype():
+    # Make sure that the subtype with priority wins
+    # 2018-04-29: moved here from core.tests.test_nditer, given the
+    # matrix specific shape test.
+
+    # matrix vs ndarray
+    a = np.matrix([[1, 2], [3, 4]])
+    b = np.arange(4).reshape(2, 2).T
+    i = np.nditer([a, b, None], [],
+                  [['readonly'], ['readonly'], ['writeonly', 'allocate']])
+    assert_(type(i.operands[2]) is np.matrix)
+    assert_(type(i.operands[2]) is not np.ndarray)
+    assert_equal(i.operands[2].shape, (2, 2))
+
+    # matrix always wants things to be 2D
+    b = np.arange(4).reshape(1, 2, 2)
+    assert_raises(RuntimeError, np.nditer, [a, b, None], [],
+                  [['readonly'], ['readonly'], ['writeonly', 'allocate']])
+    # but if subtypes are disabled, the result can still work
+    i = np.nditer([a, b, None], [],
+                  [['readonly'], ['readonly'],
+                   ['writeonly', 'allocate', 'no_subtype']])
+    assert_(type(i.operands[2]) is np.ndarray)
+    assert_(type(i.operands[2]) is not np.matrix)
+    assert_equal(i.operands[2].shape, (1, 2, 2))
+
+
+def like_function():
+    # 2018-04-29: moved here from core.tests.test_numeric
+    a = np.matrix([[1, 2], [3, 4]])
+    for like_function in np.zeros_like, np.ones_like, np.empty_like:
+        b = like_function(a)
+        assert_(type(b) is np.matrix)
+
+        c = like_function(a, subok=False)
+        assert_(type(c) is not np.matrix)
+
+
+def test_array_astype():
+    # 2018-04-29: copied here from core.tests.test_api
+    # subok=True passes through a matrix
+    a = np.matrix([[0, 1, 2], [3, 4, 5]], dtype='f4')
+    b = a.astype('f4', subok=True, copy=False)
+    assert_(a is b)
+
+    # subok=True is default, and creates a subtype on a cast
+    b = a.astype('i4', copy=False)
+    assert_equal(a, b)
+    assert_equal(type(b), np.matrix)
+
+    # subok=False never returns a matrix
+    b = a.astype('f4', subok=False, copy=False)
+    assert_equal(a, b)
+    assert_(not (a is b))
+    assert_(type(b) is not np.matrix)
+
+
+def test_stack():
+    # 2018-04-29: copied here from core.tests.test_shape_base
+    # check np.matrix cannot be stacked
+    m = np.matrix([[1, 2], [3, 4]])
+    assert_raises_regex(ValueError, 'shape too large to be a matrix',
+                        np.stack, [m, m])
+
+
+def test_object_scalar_multiply():
+    # Tickets #2469 and #4482
+    # 2018-04-29: moved here from core.tests.test_ufunc
+    arr = np.matrix([1, 2], dtype=object)
+    desired = np.matrix([[3, 6]], dtype=object)
+    assert_equal(np.multiply(arr, 3), desired)
+    assert_equal(np.multiply(3, arr), desired)
+
+
+def test_nanfunctions_matrices():
+    # Check that it works and that type and
+    # shape are preserved
+    # 2018-04-29: moved here from core.tests.test_nanfunctions
+    mat = np.matrix(np.eye(3))
+    for f in [np.nanmin, np.nanmax]:
+        res = f(mat, axis=0)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (1, 3))
+        res = f(mat, axis=1)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (3, 1))
+        res = f(mat)
+        assert_(np.isscalar(res))
+    # check that rows of nan are dealt with for subclasses (#4628)
+    mat[1] = np.nan
+    for f in [np.nanmin, np.nanmax]:
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter('always')
+            res = f(mat, axis=0)
+            assert_(isinstance(res, np.matrix))
+            assert_(not np.any(np.isnan(res)))
+            assert_(len(w) == 0)
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter('always')
+            res = f(mat, axis=1)
+            assert_(isinstance(res, np.matrix))
+            assert_(np.isnan(res[1, 0]) and not np.isnan(res[0, 0])
+                    and not np.isnan(res[2, 0]))
+            assert_(len(w) == 1, 'no warning raised')
+            assert_(issubclass(w[0].category, RuntimeWarning))
+
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter('always')
+            res = f(mat)
+            assert_(np.isscalar(res))
+            assert_(res != np.nan)
+            assert_(len(w) == 0)
+
+
+def test_nanfunctions_matrices_general():
+    # Check that it works and that type and
+    # shape are preserved
+    # 2018-04-29: moved here from core.tests.test_nanfunctions
+    mat = np.matrix(np.eye(3))
+    for f in (np.nanargmin, np.nanargmax, np.nansum, np.nanprod,
+              np.nanmean, np.nanvar, np.nanstd):
+        res = f(mat, axis=0)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (1, 3))
+        res = f(mat, axis=1)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (3, 1))
+        res = f(mat)
+        assert_(np.isscalar(res))
+
+    for f in np.nancumsum, np.nancumprod:
+        res = f(mat, axis=0)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (3, 3))
+        res = f(mat, axis=1)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (3, 3))
+        res = f(mat)
+        assert_(isinstance(res, np.matrix))
+        assert_(res.shape == (1, 3 * 3))
+
+
+def test_average_matrix():
+    # 2018-04-29: moved here from core.tests.test_function_base.
+    y = np.matrix(np.random.rand(5, 5))
+    assert_array_equal(y.mean(0), np.average(y, 0))
+
+    a = np.matrix([[1, 2], [3, 4]])
+    w = np.matrix([[1, 2], [3, 4]])
+
+    r = np.average(a, axis=0, weights=w)
+    assert_equal(type(r), np.matrix)
+    assert_equal(r, [[2.5, 10.0 / 3]])
+
+
+def test_dot_matrix():
+    # Test to make sure matrices give the same answer as ndarrays
+    # 2018-04-29: moved here from core.tests.test_function_base.
+    x = np.linspace(0, 5)
+    y = np.linspace(-5, 0)
+    mx = np.matrix(x)
+    my = np.matrix(y)
+    r = np.dot(x, y)
+    mr = np.dot(mx, my.T)
+    assert_almost_equal(mr, r)
+
+
+def test_ediff1d_matrix():
+    # 2018-04-29: moved here from core.tests.test_arraysetops.
+    assert isinstance(np.ediff1d(np.matrix(1)), np.matrix)
+    assert isinstance(np.ediff1d(np.matrix(1), to_begin=1), np.matrix)
+
+
+def test_apply_along_axis_matrix():
+    # this test is particularly malicious because matrix
+    # refuses to become 1d
+    # 2018-04-29: moved here from core.tests.test_shape_base.
+    def double(row):
+        return row * 2
+
+    m = np.matrix([[0, 1], [2, 3]])
+    expected = np.matrix([[0, 2], [4, 6]])
+
+    result = np.apply_along_axis(double, 0, m)
+    assert_(isinstance(result, np.matrix))
+    assert_array_equal(result, expected)
+
+    result = np.apply_along_axis(double, 1, m)
+    assert_(isinstance(result, np.matrix))
+    assert_array_equal(result, expected)
+
+
+def test_kron_matrix():
+    # 2018-04-29: moved here from core.tests.test_shape_base.
+    a = np.ones([2, 2])
+    m = np.asmatrix(a)
+    assert_equal(type(np.kron(a, a)), np.ndarray)
+    assert_equal(type(np.kron(m, m)), np.matrix)
+    assert_equal(type(np.kron(a, m)), np.matrix)
+    assert_equal(type(np.kron(m, a)), np.matrix)
+
+
+class TestConcatenatorMatrix:
+    # 2018-04-29: moved here from core.tests.test_index_tricks.
+    def test_matrix(self):
+        a = [1, 2]
+        b = [3, 4]
+
+        ab_r = np.r_['r', a, b]
+        ab_c = np.r_['c', a, b]
+
+        assert_equal(type(ab_r), np.matrix)
+        assert_equal(type(ab_c), np.matrix)
+
+        assert_equal(np.array(ab_r), [[1, 2, 3, 4]])
+        assert_equal(np.array(ab_c), [[1], [2], [3], [4]])
+
+        assert_raises(ValueError, lambda: np.r_['rc', a, b])
+
+    def test_matrix_scalar(self):
+        r = np.r_['r', [1, 2], 3]
+        assert_equal(type(r), np.matrix)
+        assert_equal(np.array(r), [[1, 2, 3]])
+
+    def test_matrix_builder(self):
+        a = np.array([1])
+        b = np.array([2])
+        c = np.array([3])
+        d = np.array([4])
+        actual = np.r_['a, b; c, d']
+        expected = np.bmat([[a, b], [c, d]])
+
+        assert_equal(actual, expected)
+        assert_equal(type(actual), type(expected))
+
+
+def test_array_equal_error_message_matrix():
+    # 2018-04-29: moved here from testing.tests.test_utils.
+    with pytest.raises(AssertionError) as exc_info:
+        assert_equal(np.array([1, 2]), np.matrix([1, 2]))
+    msg = str(exc_info.value)
+    msg_reference = textwrap.dedent("""\
+
+    Arrays are not equal
+
+    (shapes (2,), (1, 2) mismatch)
+     ACTUAL: array([1, 2])
+     DESIRED: matrix([[1, 2]])""")
+    assert_equal(msg, msg_reference)
+
+
+def test_array_almost_equal_matrix():
+    # Matrix slicing keeps things 2-D, while array does not necessarily.
+    # See gh-8452.
+    # 2018-04-29: moved here from testing.tests.test_utils.
+    m1 = np.matrix([[1., 2.]])
+    m2 = np.matrix([[1., np.nan]])
+    m3 = np.matrix([[1., -np.inf]])
+    m4 = np.matrix([[np.nan, np.inf]])
+    m5 = np.matrix([[1., 2.], [np.nan, np.inf]])
+    for assert_func in assert_array_almost_equal, assert_almost_equal:
+        for m in m1, m2, m3, m4, m5:
+            assert_func(m, m)
+            a = np.array(m)
+            assert_func(a, m)
+            assert_func(m, a)
diff --git a/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_masked_matrix.py b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_masked_matrix.py
new file mode 100644
index 0000000000000000000000000000000000000000..853b3413bcc7b423ce3b70848389df513b06733a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_masked_matrix.py
@@ -0,0 +1,240 @@
+import pickle
+
+import numpy as np
+from numpy.ma.core import (
+    MaskedArray,
+    MaskType,
+    add,
+    allequal,
+    divide,
+    getmask,
+    hypot,
+    log,
+    masked,
+    masked_array,
+    masked_values,
+    nomask,
+)
+from numpy.ma.extras import mr_
+from numpy.ma.testutils import assert_, assert_array_equal, assert_equal, assert_raises
+
+
+class MMatrix(MaskedArray, np.matrix,):
+
+    def __new__(cls, data, mask=nomask):
+        mat = np.matrix(data)
+        _data = MaskedArray.__new__(cls, data=mat, mask=mask)
+        return _data
+
+    def __array_finalize__(self, obj):
+        np.matrix.__array_finalize__(self, obj)
+        MaskedArray.__array_finalize__(self, obj)
+
+    @property
+    def _series(self):
+        _view = self.view(MaskedArray)
+        _view._sharedmask = False
+        return _view
+
+
+class TestMaskedMatrix:
+    def test_matrix_indexing(self):
+        # Tests conversions and indexing
+        x1 = np.matrix([[1, 2, 3], [4, 3, 2]])
+        x2 = masked_array(x1, mask=[[1, 0, 0], [0, 1, 0]])
+        x3 = masked_array(x1, mask=[[0, 1, 0], [1, 0, 0]])
+        x4 = masked_array(x1)
+        # test conversion to strings
+        str(x2)  # raises?
+        repr(x2)  # raises?
+        # tests of indexing
+        assert_(type(x2[1, 0]) is type(x1[1, 0]))
+        assert_(x1[1, 0] == x2[1, 0])
+        assert_(x2[1, 1] is masked)
+        assert_equal(x1[0, 2], x2[0, 2])
+        assert_equal(x1[0, 1:], x2[0, 1:])
+        assert_equal(x1[:, 2], x2[:, 2])
+        assert_equal(x1[:], x2[:])
+        assert_equal(x1[1:], x3[1:])
+        x1[0, 2] = 9
+        x2[0, 2] = 9
+        assert_equal(x1, x2)
+        x1[0, 1:] = 99
+        x2[0, 1:] = 99
+        assert_equal(x1, x2)
+        x2[0, 1] = masked
+        assert_equal(x1, x2)
+        x2[0, 1:] = masked
+        assert_equal(x1, x2)
+        x2[0, :] = x1[0, :]
+        x2[0, 1] = masked
+        assert_(allequal(getmask(x2), np.array([[0, 1, 0], [0, 1, 0]])))
+        x3[1, :] = masked_array([1, 2, 3], [1, 1, 0])
+        assert_(allequal(getmask(x3)[1], masked_array([1, 1, 0])))
+        assert_(allequal(getmask(x3[1]), masked_array([1, 1, 0])))
+        x4[1, :] = masked_array([1, 2, 3], [1, 1, 0])
+        assert_(allequal(getmask(x4[1]), masked_array([1, 1, 0])))
+        assert_(allequal(x4[1], masked_array([1, 2, 3])))
+        x1 = np.matrix(np.arange(5) * 1.0)
+        x2 = masked_values(x1, 3.0)
+        assert_equal(x1, x2)
+        assert_(allequal(masked_array([0, 0, 0, 1, 0], dtype=MaskType),
+                         x2.mask))
+        assert_equal(3.0, x2.fill_value)
+
+    def test_pickling_subbaseclass(self):
+        # Test pickling w/ a subclass of ndarray
+        a = masked_array(np.matrix(list(range(10))), mask=[1, 0, 1, 0, 0] * 2)
+        for proto in range(2, pickle.HIGHEST_PROTOCOL + 1):
+            a_pickled = pickle.loads(pickle.dumps(a, protocol=proto))
+            assert_equal(a_pickled._mask, a._mask)
+            assert_equal(a_pickled, a)
+            assert_(isinstance(a_pickled._data, np.matrix))
+
+    def test_count_mean_with_matrix(self):
+        m = masked_array(np.matrix([[1, 2], [3, 4]]), mask=np.zeros((2, 2)))
+
+        assert_equal(m.count(axis=0).shape, (1, 2))
+        assert_equal(m.count(axis=1).shape, (2, 1))
+
+        # Make sure broadcasting inside mean and var work
+        assert_equal(m.mean(axis=0), [[2., 3.]])
+        assert_equal(m.mean(axis=1), [[1.5], [3.5]])
+
+    def test_flat(self):
+        # Test that flat can return items even for matrices [#4585, #4615]
+        # test simple access
+        test = masked_array(np.matrix([[1, 2, 3]]), mask=[0, 0, 1])
+        assert_equal(test.flat[1], 2)
+        assert_equal(test.flat[2], masked)
+        assert_(np.all(test.flat[0:2] == test[0, 0:2]))
+        # Test flat on masked_matrices
+        test = masked_array(np.matrix([[1, 2, 3]]), mask=[0, 0, 1])
+        test.flat = masked_array([3, 2, 1], mask=[1, 0, 0])
+        control = masked_array(np.matrix([[3, 2, 1]]), mask=[1, 0, 0])
+        assert_equal(test, control)
+        # Test setting
+        test = masked_array(np.matrix([[1, 2, 3]]), mask=[0, 0, 1])
+        testflat = test.flat
+        testflat[:] = testflat[np.array([2, 1, 0])]
+        assert_equal(test, control)
+        testflat[0] = 9
+        # test that matrices keep the correct shape (#4615)
+        a = masked_array(np.matrix(np.eye(2)), mask=0)
+        b = a.flat
+        b01 = b[:2]
+        assert_equal(b01.data, np.array([[1., 0.]]))
+        assert_equal(b01.mask, np.array([[False, False]]))
+
+    def test_allany_onmatrices(self):
+        x = np.array([[0.13, 0.26, 0.90],
+                      [0.28, 0.33, 0.63],
+                      [0.31, 0.87, 0.70]])
+        X = np.matrix(x)
+        m = np.array([[True, False, False],
+                      [False, False, False],
+                      [True, True, False]], dtype=np.bool)
+        mX = masked_array(X, mask=m)
+        mXbig = (mX > 0.5)
+        mXsmall = (mX < 0.5)
+
+        assert_(not mXbig.all())
+        assert_(mXbig.any())
+        assert_equal(mXbig.all(0), np.matrix([False, False, True]))
+        assert_equal(mXbig.all(1), np.matrix([False, False, True]).T)
+        assert_equal(mXbig.any(0), np.matrix([False, False, True]))
+        assert_equal(mXbig.any(1), np.matrix([True, True, True]).T)
+
+        assert_(not mXsmall.all())
+        assert_(mXsmall.any())
+        assert_equal(mXsmall.all(0), np.matrix([True, True, False]))
+        assert_equal(mXsmall.all(1), np.matrix([False, False, False]).T)
+        assert_equal(mXsmall.any(0), np.matrix([True, True, False]))
+        assert_equal(mXsmall.any(1), np.matrix([True, True, False]).T)
+
+    def test_compressed(self):
+        a = masked_array(np.matrix([1, 2, 3, 4]), mask=[0, 0, 0, 0])
+        b = a.compressed()
+        assert_equal(b, a)
+        assert_(isinstance(b, np.matrix))
+        a[0, 0] = masked
+        b = a.compressed()
+        assert_equal(b, [[2, 3, 4]])
+
+    def test_ravel(self):
+        a = masked_array(np.matrix([1, 2, 3, 4, 5]), mask=[[0, 1, 0, 0, 0]])
+        aravel = a.ravel()
+        assert_equal(aravel.shape, (1, 5))
+        assert_equal(aravel._mask.shape, a.shape)
+
+    def test_view(self):
+        # Test view w/ flexible dtype
+        iterator = list(zip(np.arange(10), np.random.rand(10)))
+        data = np.array(iterator)
+        a = masked_array(iterator, dtype=[('a', float), ('b', float)])
+        a.mask[0] = (1, 0)
+        test = a.view((float, 2), np.matrix)
+        assert_equal(test, data)
+        assert_(isinstance(test, np.matrix))
+        assert_(not isinstance(test, MaskedArray))
+
+
+class TestSubclassing:
+    # Test suite for masked subclasses of ndarray.
+
+    def _create_data(self):
+        x = np.arange(5, dtype='float')
+        mx = MMatrix(x, mask=[0, 1, 0, 0, 0])
+        return x, mx
+
+    def test_maskedarray_subclassing(self):
+        # Tests subclassing MaskedArray
+        mx = self._create_data()[1]
+        assert_(isinstance(mx._data, np.matrix))
+
+    def test_masked_unary_operations(self):
+        # Tests masked_unary_operation
+        x, mx = self._create_data()
+        with np.errstate(divide='ignore'):
+            assert_(isinstance(log(mx), MMatrix))
+            assert_equal(log(x), np.log(x))
+
+    def test_masked_binary_operations(self):
+        # Tests masked_binary_operation
+        x, mx = self._create_data()
+        # Result should be a MMatrix
+        assert_(isinstance(add(mx, mx), MMatrix))
+        assert_(isinstance(add(mx, x), MMatrix))
+        # Result should work
+        assert_equal(add(mx, x), mx + x)
+        assert_(isinstance(add(mx, mx)._data, np.matrix))
+        with assert_raises(TypeError):
+            add.outer(mx, mx)
+        assert_(isinstance(hypot(mx, mx), MMatrix))
+        assert_(isinstance(hypot(mx, x), MMatrix))
+
+    def test_masked_binary_operations2(self):
+        # Tests domained_masked_binary_operation
+        x, mx = self._create_data()
+        xmx = masked_array(mx.data.__array__(), mask=mx.mask)
+        assert_(isinstance(divide(mx, mx), MMatrix))
+        assert_(isinstance(divide(mx, x), MMatrix))
+        assert_equal(divide(mx, mx), divide(xmx, xmx))
+
+class TestConcatenator:
+    # Tests for mr_, the equivalent of r_ for masked arrays.
+
+    def test_matrix_builder(self):
+        assert_raises(np.ma.MAError, lambda: mr_['1, 2; 3, 4'])
+
+    def test_matrix(self):
+        # Test consistency with unmasked version.  If we ever deprecate
+        # matrix, this test should either still pass, or both actual and
+        # expected should fail to be build.
+        actual = mr_['r', 1, 2, 3]
+        expected = np.ma.array(np.r_['r', 1, 2, 3])
+        assert_array_equal(actual, expected)
+
+        # outer type is masked array, inner type is matrix
+        assert_equal(type(actual), type(expected))
+        assert_equal(type(actual.data), type(expected.data))
diff --git a/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_matrix_linalg.py b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_matrix_linalg.py
new file mode 100644
index 0000000000000000000000000000000000000000..b86f74fabc0437b35f79c9af94e4aa4f5ee78d20
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_matrix_linalg.py
@@ -0,0 +1,110 @@
+""" Test functions for linalg module using the matrix class."""
+import pytest
+
+import numpy as np
+from numpy.linalg.tests.test_linalg import (
+    CondCases,
+    DetCases,
+    EigCases,
+    EigvalsCases,
+    InvCases,
+    LinalgCase,
+    LinalgTestCase,
+    LstsqCases,
+    PinvCases,
+    SolveCases,
+    SVDCases,
+    TestQR as _TestQR,
+    _TestNorm2D,
+    _TestNormDoubleBase,
+    _TestNormInt64Base,
+    _TestNormSingleBase,
+    apply_tag,
+)
+
+CASES = []
+
+# square test cases
+CASES += apply_tag('square', [
+    LinalgCase("0x0_matrix",
+               np.empty((0, 0), dtype=np.double).view(np.matrix),
+               np.empty((0, 1), dtype=np.double).view(np.matrix),
+               tags={'size-0'}),
+    LinalgCase("matrix_b_only",
+               np.array([[1., 2.], [3., 4.]]),
+               np.matrix([2., 1.]).T),
+    LinalgCase("matrix_a_and_b",
+               np.matrix([[1., 2.], [3., 4.]]),
+               np.matrix([2., 1.]).T),
+])
+
+# hermitian test-cases
+CASES += apply_tag('hermitian', [
+    LinalgCase("hmatrix_a_and_b",
+               np.matrix([[1., 2.], [2., 1.]]),
+               None),
+])
+# No need to make generalized or strided cases for matrices.
+
+
+class MatrixTestCase(LinalgTestCase):
+    TEST_CASES = CASES
+
+
+class TestSolveMatrix(SolveCases, MatrixTestCase):
+    pass
+
+
+class TestInvMatrix(InvCases, MatrixTestCase):
+    pass
+
+
+class TestEigvalsMatrix(EigvalsCases, MatrixTestCase):
+    pass
+
+
+class TestEigMatrix(EigCases, MatrixTestCase):
+    pass
+
+
+class TestSVDMatrix(SVDCases, MatrixTestCase):
+    pass
+
+
+class TestCondMatrix(CondCases, MatrixTestCase):
+    pass
+
+
+class TestPinvMatrix(PinvCases, MatrixTestCase):
+    pass
+
+
+class TestDetMatrix(DetCases, MatrixTestCase):
+    pass
+
+
+@pytest.mark.thread_unsafe(
+    reason="residuals not calculated properly for square tests (gh-29851)"
+)
+class TestLstsqMatrix(LstsqCases, MatrixTestCase):
+    pass
+
+
+class _TestNorm2DMatrix(_TestNorm2D):
+    array = np.matrix
+
+
+class TestNormDoubleMatrix(_TestNorm2DMatrix, _TestNormDoubleBase):
+    pass
+
+
+class TestNormSingleMatrix(_TestNorm2DMatrix, _TestNormSingleBase):
+    pass
+
+
+class TestNormInt64Matrix(_TestNorm2DMatrix, _TestNormInt64Base):
+    pass
+
+
+class TestQRMatrix(_TestQR):
+    array = np.matrix
diff --git a/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_multiarray.py b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_multiarray.py
new file mode 100644
index 0000000000000000000000000000000000000000..5ce4300558d919d1cb97e87449d873dcd97c27bf
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_multiarray.py
@@ -0,0 +1,17 @@
+import numpy as np
+from numpy.testing import assert_, assert_array_equal, assert_equal
+
+
+class TestView:
+    def test_type(self):
+        x = np.array([1, 2, 3])
+        assert_(isinstance(x.view(np.matrix), np.matrix))
+
+    def test_keywords(self):
+        x = np.array([(1, 2)], dtype=[('a', np.int8), ('b', np.int8)])
+        # We must be specific about the endianness here:
+        y = x.view(dtype='<i2', type=np.matrix)
+        assert_array_equal(y, [[513]])
+
+        assert_(isinstance(y, np.matrix))
+        assert_equal(y.dtype, np.dtype('<i2'))
diff --git a/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_numeric.py b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_numeric.py
new file mode 100644
index 0000000000000000000000000000000000000000..94a46d832c171a9a4ba038292358909753b0613f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_numeric.py
@@ -0,0 +1,18 @@
+import numpy as np
+from numpy.testing import assert_equal
+
+
+class TestDot:
+    def test_matscalar(self):
+        b1 = np.matrix(np.ones((3, 3), dtype=complex))
+        assert_equal(b1 * 1.0, b1)
+
+
+def test_diagonal():
+    b1 = np.matrix([[1, 2], [3, 4]])
+    diag_b1 = np.matrix([[1, 4]])
+    array_b1 = np.array([1, 4])
+
+    assert_equal(b1.diagonal(), diag_b1)
+    assert_equal(np.diagonal(b1), array_b1)
+    assert_equal(np.diag(b1), array_b1)
diff --git a/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..9ac71b8562a73d2bd3a06b2be4f1074d150f9c91
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/matrixlib/tests/test_regression.py
@@ -0,0 +1,31 @@
+import numpy as np
+from numpy.testing import assert_, assert_equal, assert_raises
+
+
+class TestRegression:
+    def test_kron_matrix(self):
+        # Ticket #71
+        x = np.matrix('[1 0; 1 0]')
+        assert_equal(type(np.kron(x, x)), type(x))
+
+    def test_matrix_properties(self):
+        # Ticket #125
+        a = np.matrix([1.0], dtype=float)
+        assert_(type(a.real) is np.matrix)
+        assert_(type(a.imag) is np.matrix)
+        c, d = np.matrix([0.0]).nonzero()
+        assert_(type(c) is np.ndarray)
+        assert_(type(d) is np.ndarray)
+
+    def test_matrix_multiply_by_1d_vector(self):
+        # Ticket #473
+        def mul():
+            np.asmatrix(np.eye(2)) * np.ones(2)
+
+        assert_raises(ValueError, mul)
+
+    def test_matrix_std_argmax(self):
+        # Ticket #83
+        x = np.asmatrix(np.random.uniform(0, 1, (3, 3)))
+        assert_equal(x.std().shape, ())
+        assert_equal(x.argmax().shape, ())
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diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_chebyshev.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_chebyshev.py
new file mode 100644
index 0000000000000000000000000000000000000000..97b00d234feeb9fd73d2f20b5841990d4205cb36
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_chebyshev.py
@@ -0,0 +1,618 @@
+"""Tests for chebyshev module.
+
+"""
+from functools import reduce
+
+import numpy as np
+import numpy.polynomial.chebyshev as cheb
+from numpy.polynomial.polynomial import polyval
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+
+def trim(x):
+    return cheb.chebtrim(x, tol=1e-6)
+
+
+T0 = [1]
+T1 = [0, 1]
+T2 = [-1, 0, 2]
+T3 = [0, -3, 0, 4]
+T4 = [1, 0, -8, 0, 8]
+T5 = [0, 5, 0, -20, 0, 16]
+T6 = [-1, 0, 18, 0, -48, 0, 32]
+T7 = [0, -7, 0, 56, 0, -112, 0, 64]
+T8 = [1, 0, -32, 0, 160, 0, -256, 0, 128]
+T9 = [0, 9, 0, -120, 0, 432, 0, -576, 0, 256]
+
+Tlist = [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9]
+
+
+class TestPrivate:
+
+    def test__cseries_to_zseries(self):
+        for i in range(5):
+            inp = np.array([2] + [1] * i, np.double)
+            tgt = np.array([.5] * i + [2] + [.5] * i, np.double)
+            res = cheb._cseries_to_zseries(inp)
+            assert_equal(res, tgt)
+
+    def test__zseries_to_cseries(self):
+        for i in range(5):
+            inp = np.array([.5] * i + [2] + [.5] * i, np.double)
+            tgt = np.array([2] + [1] * i, np.double)
+            res = cheb._zseries_to_cseries(inp)
+            assert_equal(res, tgt)
+
+
+class TestConstants:
+
+    def test_chebdomain(self):
+        assert_equal(cheb.chebdomain, [-1, 1])
+
+    def test_chebzero(self):
+        assert_equal(cheb.chebzero, [0])
+
+    def test_chebone(self):
+        assert_equal(cheb.chebone, [1])
+
+    def test_chebx(self):
+        assert_equal(cheb.chebx, [0, 1])
+
+
+class TestArithmetic:
+
+    def test_chebadd(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] += 1
+                res = cheb.chebadd([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_chebsub(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] -= 1
+                res = cheb.chebsub([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_chebmulx(self):
+        assert_equal(cheb.chebmulx([0]), [0])
+        assert_equal(cheb.chebmulx([1]), [0, 1])
+        for i in range(1, 5):
+            ser = [0] * i + [1]
+            tgt = [0] * (i - 1) + [.5, 0, .5]
+            assert_equal(cheb.chebmulx(ser), tgt)
+
+    def test_chebmul(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(i + j + 1)
+                tgt[i + j] += .5
+                tgt[abs(i - j)] += .5
+                res = cheb.chebmul([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_chebdiv(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                ci = [0] * i + [1]
+                cj = [0] * j + [1]
+                tgt = cheb.chebadd(ci, cj)
+                quo, rem = cheb.chebdiv(tgt, ci)
+                res = cheb.chebadd(cheb.chebmul(quo, ci), rem)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_chebpow(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                c = np.arange(i + 1)
+                tgt = reduce(cheb.chebmul, [c] * j, np.array([1]))
+                res = cheb.chebpow(c, j)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+
+class TestEvaluation:
+    # coefficients of 1 + 2*x + 3*x**2
+    c1d = np.array([2.5, 2., 1.5])
+    c2d = np.einsum('i,j->ij', c1d, c1d)
+    c3d = np.einsum('i,j,k->ijk', c1d, c1d, c1d)
+
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+    y = polyval(x, [1., 2., 3.])
+
+    def test_chebval(self):
+        # check empty input
+        assert_equal(cheb.chebval([], [1]).size, 0)
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [polyval(x, c) for c in Tlist]
+        for i in range(10):
+            msg = f"At i={i}"
+            tgt = y[i]
+            res = cheb.chebval(x, [0] * i + [1])
+            assert_almost_equal(res, tgt, err_msg=msg)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(cheb.chebval(x, [1]).shape, dims)
+            assert_equal(cheb.chebval(x, [1, 0]).shape, dims)
+            assert_equal(cheb.chebval(x, [1, 0, 0]).shape, dims)
+
+    def test_chebval2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, cheb.chebval2d, x1, x2[:2], self.c2d)
+
+        # test values
+        tgt = y1 * y2
+        res = cheb.chebval2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = cheb.chebval2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3))
+
+    def test_chebval3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, cheb.chebval3d, x1, x2, x3[:2], self.c3d)
+
+        # test values
+        tgt = y1 * y2 * y3
+        res = cheb.chebval3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = cheb.chebval3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3))
+
+    def test_chebgrid2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j->ij', y1, y2)
+        res = cheb.chebgrid2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = cheb.chebgrid2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3) * 2)
+
+    def test_chebgrid3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j,k->ijk', y1, y2, y3)
+        res = cheb.chebgrid3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = cheb.chebgrid3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3) * 3)
+
+
+class TestIntegral:
+
+    def test_chebint(self):
+        # check exceptions
+        assert_raises(TypeError, cheb.chebint, [0], .5)
+        assert_raises(ValueError, cheb.chebint, [0], -1)
+        assert_raises(ValueError, cheb.chebint, [0], 1, [0, 0])
+        assert_raises(ValueError, cheb.chebint, [0], lbnd=[0])
+        assert_raises(ValueError, cheb.chebint, [0], scl=[0])
+        assert_raises(TypeError, cheb.chebint, [0], axis=.5)
+
+        # test integration of zero polynomial
+        for i in range(2, 5):
+            k = [0] * (i - 2) + [1]
+            res = cheb.chebint([0], m=i, k=k)
+            assert_almost_equal(res, [0, 1])
+
+        # check single integration with integration constant
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [1 / scl]
+            chebpol = cheb.poly2cheb(pol)
+            chebint = cheb.chebint(chebpol, m=1, k=[i])
+            res = cheb.cheb2poly(chebint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check single integration with integration constant and lbnd
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            chebpol = cheb.poly2cheb(pol)
+            chebint = cheb.chebint(chebpol, m=1, k=[i], lbnd=-1)
+            assert_almost_equal(cheb.chebval(-1, chebint), i)
+
+        # check single integration with integration constant and scaling
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [2 / scl]
+            chebpol = cheb.poly2cheb(pol)
+            chebint = cheb.chebint(chebpol, m=1, k=[i], scl=2)
+            res = cheb.cheb2poly(chebint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with default k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = cheb.chebint(tgt, m=1)
+                res = cheb.chebint(pol, m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with defined k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = cheb.chebint(tgt, m=1, k=[k])
+                res = cheb.chebint(pol, m=j, k=list(range(j)))
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with lbnd
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = cheb.chebint(tgt, m=1, k=[k], lbnd=-1)
+                res = cheb.chebint(pol, m=j, k=list(range(j)), lbnd=-1)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = cheb.chebint(tgt, m=1, k=[k], scl=2)
+                res = cheb.chebint(pol, m=j, k=list(range(j)), scl=2)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_chebint_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([cheb.chebint(c) for c in c2d.T]).T
+        res = cheb.chebint(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([cheb.chebint(c) for c in c2d])
+        res = cheb.chebint(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([cheb.chebint(c, k=3) for c in c2d])
+        res = cheb.chebint(c2d, k=3, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestDerivative:
+
+    def test_chebder(self):
+        # check exceptions
+        assert_raises(TypeError, cheb.chebder, [0], .5)
+        assert_raises(ValueError, cheb.chebder, [0], -1)
+
+        # check that zeroth derivative does nothing
+        for i in range(5):
+            tgt = [0] * i + [1]
+            res = cheb.chebder(tgt, m=0)
+            assert_equal(trim(res), trim(tgt))
+
+        # check that derivation is the inverse of integration
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = cheb.chebder(cheb.chebint(tgt, m=j), m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check derivation with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = cheb.chebder(cheb.chebint(tgt, m=j, scl=2), m=j, scl=.5)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_chebder_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([cheb.chebder(c) for c in c2d.T]).T
+        res = cheb.chebder(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([cheb.chebder(c) for c in c2d])
+        res = cheb.chebder(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestVander:
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+
+    def test_chebvander(self):
+        # check for 1d x
+        x = np.arange(3)
+        v = cheb.chebvander(x, 3)
+        assert_(v.shape == (3, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], cheb.chebval(x, coef))
+
+        # check for 2d x
+        x = np.array([[1, 2], [3, 4], [5, 6]])
+        v = cheb.chebvander(x, 3)
+        assert_(v.shape == (3, 2, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], cheb.chebval(x, coef))
+
+    def test_chebvander2d(self):
+        # also tests chebval2d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3))
+        van = cheb.chebvander2d(x1, x2, [1, 2])
+        tgt = cheb.chebval2d(x1, x2, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = cheb.chebvander2d([x1], [x2], [1, 2])
+        assert_(van.shape == (1, 5, 6))
+
+    def test_chebvander3d(self):
+        # also tests chebval3d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3, 4))
+        van = cheb.chebvander3d(x1, x2, x3, [1, 2, 3])
+        tgt = cheb.chebval3d(x1, x2, x3, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = cheb.chebvander3d([x1], [x2], [x3], [1, 2, 3])
+        assert_(van.shape == (1, 5, 24))
+
+
+class TestFitting:
+
+    def test_chebfit(self):
+        def f(x):
+            return x * (x - 1) * (x - 2)
+
+        def f2(x):
+            return x**4 + x**2 + 1
+
+        # Test exceptions
+        assert_raises(ValueError, cheb.chebfit, [1], [1], -1)
+        assert_raises(TypeError, cheb.chebfit, [[1]], [1], 0)
+        assert_raises(TypeError, cheb.chebfit, [], [1], 0)
+        assert_raises(TypeError, cheb.chebfit, [1], [[[1]]], 0)
+        assert_raises(TypeError, cheb.chebfit, [1, 2], [1], 0)
+        assert_raises(TypeError, cheb.chebfit, [1], [1, 2], 0)
+        assert_raises(TypeError, cheb.chebfit, [1], [1], 0, w=[[1]])
+        assert_raises(TypeError, cheb.chebfit, [1], [1], 0, w=[1, 1])
+        assert_raises(ValueError, cheb.chebfit, [1], [1], [-1,])
+        assert_raises(ValueError, cheb.chebfit, [1], [1], [2, -1, 6])
+        assert_raises(TypeError, cheb.chebfit, [1], [1], [])
+
+        # Test fit
+        x = np.linspace(0, 2)
+        y = f(x)
+        #
+        coef3 = cheb.chebfit(x, y, 3)
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(cheb.chebval(x, coef3), y)
+        coef3 = cheb.chebfit(x, y, [0, 1, 2, 3])
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(cheb.chebval(x, coef3), y)
+        #
+        coef4 = cheb.chebfit(x, y, 4)
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(cheb.chebval(x, coef4), y)
+        coef4 = cheb.chebfit(x, y, [0, 1, 2, 3, 4])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(cheb.chebval(x, coef4), y)
+        # check things still work if deg is not in strict increasing
+        coef4 = cheb.chebfit(x, y, [2, 3, 4, 1, 0])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(cheb.chebval(x, coef4), y)
+        #
+        coef2d = cheb.chebfit(x, np.array([y, y]).T, 3)
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        coef2d = cheb.chebfit(x, np.array([y, y]).T, [0, 1, 2, 3])
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        # test weighting
+        w = np.zeros_like(x)
+        yw = y.copy()
+        w[1::2] = 1
+        y[0::2] = 0
+        wcoef3 = cheb.chebfit(x, yw, 3, w=w)
+        assert_almost_equal(wcoef3, coef3)
+        wcoef3 = cheb.chebfit(x, yw, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef3, coef3)
+        #
+        wcoef2d = cheb.chebfit(x, np.array([yw, yw]).T, 3, w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        wcoef2d = cheb.chebfit(x, np.array([yw, yw]).T, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        # test scaling with complex values x points whose square
+        # is zero when summed.
+        x = [1, 1j, -1, -1j]
+        assert_almost_equal(cheb.chebfit(x, x, 1), [0, 1])
+        assert_almost_equal(cheb.chebfit(x, x, [0, 1]), [0, 1])
+        # test fitting only even polynomials
+        x = np.linspace(-1, 1)
+        y = f2(x)
+        coef1 = cheb.chebfit(x, y, 4)
+        assert_almost_equal(cheb.chebval(x, coef1), y)
+        coef2 = cheb.chebfit(x, y, [0, 2, 4])
+        assert_almost_equal(cheb.chebval(x, coef2), y)
+        assert_almost_equal(coef1, coef2)
+
+
+class TestInterpolate:
+
+    def f(self, x):
+        return x * (x - 1) * (x - 2)
+
+    def test_raises(self):
+        assert_raises(ValueError, cheb.chebinterpolate, self.f, -1)
+        assert_raises(TypeError, cheb.chebinterpolate, self.f, 10.)
+
+    def test_dimensions(self):
+        for deg in range(1, 5):
+            assert_(cheb.chebinterpolate(self.f, deg).shape == (deg + 1,))
+
+    def test_approximation(self):
+
+        def powx(x, p):
+            return x**p
+
+        x = np.linspace(-1, 1, 10)
+        for deg in range(10):
+            for p in range(deg + 1):
+                c = cheb.chebinterpolate(powx, deg, (p,))
+                assert_almost_equal(cheb.chebval(x, c), powx(x, p), decimal=12)
+
+
+class TestCompanion:
+
+    def test_raises(self):
+        assert_raises(ValueError, cheb.chebcompanion, [])
+        assert_raises(ValueError, cheb.chebcompanion, [1])
+
+    def test_dimensions(self):
+        for i in range(1, 5):
+            coef = [0] * i + [1]
+            assert_(cheb.chebcompanion(coef).shape == (i, i))
+
+    def test_linear_root(self):
+        assert_(cheb.chebcompanion([1, 2])[0, 0] == -.5)
+
+
+class TestGauss:
+
+    def test_100(self):
+        x, w = cheb.chebgauss(100)
+
+        # test orthogonality. Note that the results need to be normalized,
+        # otherwise the huge values that can arise from fast growing
+        # functions like Laguerre can be very confusing.
+        v = cheb.chebvander(x, 99)
+        vv = np.dot(v.T * w, v)
+        vd = 1 / np.sqrt(vv.diagonal())
+        vv = vd[:, None] * vv * vd
+        assert_almost_equal(vv, np.eye(100))
+
+        # check that the integral of 1 is correct
+        tgt = np.pi
+        assert_almost_equal(w.sum(), tgt)
+
+
+class TestMisc:
+
+    def test_chebfromroots(self):
+        res = cheb.chebfromroots([])
+        assert_almost_equal(trim(res), [1])
+        for i in range(1, 5):
+            roots = np.cos(np.linspace(-np.pi, 0, 2 * i + 1)[1::2])
+            tgt = [0] * i + [1]
+            res = cheb.chebfromroots(roots) * 2**(i - 1)
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_chebroots(self):
+        assert_almost_equal(cheb.chebroots([1]), [])
+        assert_almost_equal(cheb.chebroots([1, 2]), [-.5])
+        for i in range(2, 5):
+            tgt = np.linspace(-1, 1, i)
+            res = cheb.chebroots(cheb.chebfromroots(tgt))
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_chebtrim(self):
+        coef = [2, -1, 1, 0]
+
+        # Test exceptions
+        assert_raises(ValueError, cheb.chebtrim, coef, -1)
+
+        # Test results
+        assert_equal(cheb.chebtrim(coef), coef[:-1])
+        assert_equal(cheb.chebtrim(coef, 1), coef[:-3])
+        assert_equal(cheb.chebtrim(coef, 2), [0])
+
+    def test_chebline(self):
+        assert_equal(cheb.chebline(3, 4), [3, 4])
+
+    def test_cheb2poly(self):
+        for i in range(10):
+            assert_almost_equal(cheb.cheb2poly([0] * i + [1]), Tlist[i])
+
+    def test_poly2cheb(self):
+        for i in range(10):
+            assert_almost_equal(cheb.poly2cheb(Tlist[i]), [0] * i + [1])
+
+    def test_weight(self):
+        x = np.linspace(-1, 1, 11)[1:-1]
+        tgt = 1. / (np.sqrt(1 + x) * np.sqrt(1 - x))
+        res = cheb.chebweight(x)
+        assert_almost_equal(res, tgt)
+
+    def test_chebpts1(self):
+        # test exceptions
+        assert_raises(ValueError, cheb.chebpts1, 1.5)
+        assert_raises(ValueError, cheb.chebpts1, 0)
+
+        # test points
+        tgt = [0]
+        assert_almost_equal(cheb.chebpts1(1), tgt)
+        tgt = [-0.70710678118654746, 0.70710678118654746]
+        assert_almost_equal(cheb.chebpts1(2), tgt)
+        tgt = [-0.86602540378443871, 0, 0.86602540378443871]
+        assert_almost_equal(cheb.chebpts1(3), tgt)
+        tgt = [-0.9238795325, -0.3826834323, 0.3826834323, 0.9238795325]
+        assert_almost_equal(cheb.chebpts1(4), tgt)
+
+    def test_chebpts2(self):
+        # test exceptions
+        assert_raises(ValueError, cheb.chebpts2, 1.5)
+        assert_raises(ValueError, cheb.chebpts2, 1)
+
+        # test points
+        tgt = [-1, 1]
+        assert_almost_equal(cheb.chebpts2(2), tgt)
+        tgt = [-1, 0, 1]
+        assert_almost_equal(cheb.chebpts2(3), tgt)
+        tgt = [-1, -0.5, .5, 1]
+        assert_almost_equal(cheb.chebpts2(4), tgt)
+        tgt = [-1.0, -0.707106781187, 0, 0.707106781187, 1.0]
+        assert_almost_equal(cheb.chebpts2(5), tgt)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_classes.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_classes.py
new file mode 100644
index 0000000000000000000000000000000000000000..2045da459d6f67eb0ca0b413895cb0bcb9cfc34f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_classes.py
@@ -0,0 +1,613 @@
+"""Test inter-conversion of different polynomial classes.
+
+This tests the convert and cast methods of all the polynomial classes.
+
+"""
+import operator as op
+from numbers import Number
+
+import pytest
+
+import numpy as np
+from numpy.exceptions import RankWarning
+from numpy.polynomial import (
+    Chebyshev,
+    Hermite,
+    HermiteE,
+    Laguerre,
+    Legendre,
+    Polynomial,
+)
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+#
+# fixtures
+#
+
+classes = (
+    Polynomial, Legendre, Chebyshev, Laguerre,
+    Hermite, HermiteE
+    )
+classids = tuple(cls.__name__ for cls in classes)
+
+@pytest.fixture(params=classes, ids=classids)
+def Poly(request):
+    return request.param
+
+
+#
+# helper functions
+#
+random = np.random.random
+
+
+def assert_poly_almost_equal(p1, p2, msg=""):
+    try:
+        assert_(np.all(p1.domain == p2.domain))
+        assert_(np.all(p1.window == p2.window))
+        assert_almost_equal(p1.coef, p2.coef)
+    except AssertionError:
+        msg = f"Result: {p1}\nTarget: {p2}"
+        raise AssertionError(msg)
+
+
+#
+# Test conversion methods that depend on combinations of two classes.
+#
+
+Poly1 = Poly
+Poly2 = Poly
+
+
+def test_conversion(Poly1, Poly2):
+    x = np.linspace(0, 1, 10)
+    coef = random((3,))
+
+    d1 = Poly1.domain + random((2,)) * .25
+    w1 = Poly1.window + random((2,)) * .25
+    p1 = Poly1(coef, domain=d1, window=w1)
+
+    d2 = Poly2.domain + random((2,)) * .25
+    w2 = Poly2.window + random((2,)) * .25
+    p2 = p1.convert(kind=Poly2, domain=d2, window=w2)
+
+    assert_almost_equal(p2.domain, d2)
+    assert_almost_equal(p2.window, w2)
+    assert_almost_equal(p2(x), p1(x))
+
+
+def test_cast(Poly1, Poly2):
+    x = np.linspace(0, 1, 10)
+    coef = random((3,))
+
+    d1 = Poly1.domain + random((2,)) * .25
+    w1 = Poly1.window + random((2,)) * .25
+    p1 = Poly1(coef, domain=d1, window=w1)
+
+    d2 = Poly2.domain + random((2,)) * .25
+    w2 = Poly2.window + random((2,)) * .25
+    p2 = Poly2.cast(p1, domain=d2, window=w2)
+
+    assert_almost_equal(p2.domain, d2)
+    assert_almost_equal(p2.window, w2)
+    assert_almost_equal(p2(x), p1(x))
+
+
+#
+# test methods that depend on one class
+#
+
+
+def test_identity(Poly):
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    x = np.linspace(d[0], d[1], 11)
+    p = Poly.identity(domain=d, window=w)
+    assert_equal(p.domain, d)
+    assert_equal(p.window, w)
+    assert_almost_equal(p(x), x)
+
+
+def test_basis(Poly):
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    p = Poly.basis(5, domain=d, window=w)
+    assert_equal(p.domain, d)
+    assert_equal(p.window, w)
+    assert_equal(p.coef, [0] * 5 + [1])
+
+
+def test_fromroots(Poly):
+    # check that requested roots are zeros of a polynomial
+    # of correct degree, domain, and window.
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    r = random((5,))
+    p1 = Poly.fromroots(r, domain=d, window=w)
+    assert_equal(p1.degree(), len(r))
+    assert_equal(p1.domain, d)
+    assert_equal(p1.window, w)
+    assert_almost_equal(p1(r), 0)
+
+    # check that polynomial is monic
+    pdom = Polynomial.domain
+    pwin = Polynomial.window
+    p2 = Polynomial.cast(p1, domain=pdom, window=pwin)
+    assert_almost_equal(p2.coef[-1], 1)
+
+
+def test_bad_conditioned_fit(Poly):
+
+    x = [0., 0., 1.]
+    y = [1., 2., 3.]
+
+    # check RankWarning is raised
+    with pytest.warns(RankWarning) as record:
+        Poly.fit(x, y, 2)
+    assert record[0].message.args[0] == "The fit may be poorly conditioned"
+
+
+def test_fit(Poly):
+
+    def f(x):
+        return x * (x - 1) * (x - 2)
+    x = np.linspace(0, 3)
+    y = f(x)
+
+    # check default value of domain and window
+    p = Poly.fit(x, y, 3)
+    assert_almost_equal(p.domain, [0, 3])
+    assert_almost_equal(p(x), y)
+    assert_equal(p.degree(), 3)
+
+    # check with given domains and window
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    p = Poly.fit(x, y, 3, domain=d, window=w)
+    assert_almost_equal(p(x), y)
+    assert_almost_equal(p.domain, d)
+    assert_almost_equal(p.window, w)
+    p = Poly.fit(x, y, [0, 1, 2, 3], domain=d, window=w)
+    assert_almost_equal(p(x), y)
+    assert_almost_equal(p.domain, d)
+    assert_almost_equal(p.window, w)
+
+    # check with class domain default
+    p = Poly.fit(x, y, 3, [])
+    assert_equal(p.domain, Poly.domain)
+    assert_equal(p.window, Poly.window)
+    p = Poly.fit(x, y, [0, 1, 2, 3], [])
+    assert_equal(p.domain, Poly.domain)
+    assert_equal(p.window, Poly.window)
+
+    # check that fit accepts weights.
+    w = np.zeros_like(x)
+    z = y + random(y.shape) * .25
+    w[::2] = 1
+    p1 = Poly.fit(x[::2], z[::2], 3)
+    p2 = Poly.fit(x, z, 3, w=w)
+    p3 = Poly.fit(x, z, [0, 1, 2, 3], w=w)
+    assert_almost_equal(p1(x), p2(x))
+    assert_almost_equal(p2(x), p3(x))
+
+
+def test_equal(Poly):
+    p1 = Poly([1, 2, 3], domain=[0, 1], window=[2, 3])
+    p2 = Poly([1, 1, 1], domain=[0, 1], window=[2, 3])
+    p3 = Poly([1, 2, 3], domain=[1, 2], window=[2, 3])
+    p4 = Poly([1, 2, 3], domain=[0, 1], window=[1, 2])
+    assert_(p1 == p1)
+    assert_(not p1 == p2)
+    assert_(not p1 == p3)
+    assert_(not p1 == p4)
+
+
+def test_not_equal(Poly):
+    p1 = Poly([1, 2, 3], domain=[0, 1], window=[2, 3])
+    p2 = Poly([1, 1, 1], domain=[0, 1], window=[2, 3])
+    p3 = Poly([1, 2, 3], domain=[1, 2], window=[2, 3])
+    p4 = Poly([1, 2, 3], domain=[0, 1], window=[1, 2])
+    assert_(not p1 != p1)
+    assert_(p1 != p2)
+    assert_(p1 != p3)
+    assert_(p1 != p4)
+
+
+def test_add(Poly):
+    # This checks commutation, not numerical correctness
+    c1 = list(random((4,)) + .5)
+    c2 = list(random((3,)) + .5)
+    p1 = Poly(c1)
+    p2 = Poly(c2)
+    p3 = p1 + p2
+    assert_poly_almost_equal(p2 + p1, p3)
+    assert_poly_almost_equal(p1 + c2, p3)
+    assert_poly_almost_equal(c2 + p1, p3)
+    assert_poly_almost_equal(p1 + tuple(c2), p3)
+    assert_poly_almost_equal(tuple(c2) + p1, p3)
+    assert_poly_almost_equal(p1 + np.array(c2), p3)
+    assert_poly_almost_equal(np.array(c2) + p1, p3)
+    assert_raises(TypeError, op.add, p1, Poly([0], domain=Poly.domain + 1))
+    assert_raises(TypeError, op.add, p1, Poly([0], window=Poly.window + 1))
+    if Poly is Polynomial:
+        assert_raises(TypeError, op.add, p1, Chebyshev([0]))
+    else:
+        assert_raises(TypeError, op.add, p1, Polynomial([0]))
+
+
+def test_sub(Poly):
+    # This checks commutation, not numerical correctness
+    c1 = list(random((4,)) + .5)
+    c2 = list(random((3,)) + .5)
+    p1 = Poly(c1)
+    p2 = Poly(c2)
+    p3 = p1 - p2
+    assert_poly_almost_equal(p2 - p1, -p3)
+    assert_poly_almost_equal(p1 - c2, p3)
+    assert_poly_almost_equal(c2 - p1, -p3)
+    assert_poly_almost_equal(p1 - tuple(c2), p3)
+    assert_poly_almost_equal(tuple(c2) - p1, -p3)
+    assert_poly_almost_equal(p1 - np.array(c2), p3)
+    assert_poly_almost_equal(np.array(c2) - p1, -p3)
+    assert_raises(TypeError, op.sub, p1, Poly([0], domain=Poly.domain + 1))
+    assert_raises(TypeError, op.sub, p1, Poly([0], window=Poly.window + 1))
+    if Poly is Polynomial:
+        assert_raises(TypeError, op.sub, p1, Chebyshev([0]))
+    else:
+        assert_raises(TypeError, op.sub, p1, Polynomial([0]))
+
+
+def test_mul(Poly):
+    c1 = list(random((4,)) + .5)
+    c2 = list(random((3,)) + .5)
+    p1 = Poly(c1)
+    p2 = Poly(c2)
+    p3 = p1 * p2
+    assert_poly_almost_equal(p2 * p1, p3)
+    assert_poly_almost_equal(p1 * c2, p3)
+    assert_poly_almost_equal(c2 * p1, p3)
+    assert_poly_almost_equal(p1 * tuple(c2), p3)
+    assert_poly_almost_equal(tuple(c2) * p1, p3)
+    assert_poly_almost_equal(p1 * np.array(c2), p3)
+    assert_poly_almost_equal(np.array(c2) * p1, p3)
+    assert_poly_almost_equal(p1 * 2, p1 * Poly([2]))
+    assert_poly_almost_equal(2 * p1, p1 * Poly([2]))
+    assert_raises(TypeError, op.mul, p1, Poly([0], domain=Poly.domain + 1))
+    assert_raises(TypeError, op.mul, p1, Poly([0], window=Poly.window + 1))
+    if Poly is Polynomial:
+        assert_raises(TypeError, op.mul, p1, Chebyshev([0]))
+    else:
+        assert_raises(TypeError, op.mul, p1, Polynomial([0]))
+
+
+def test_floordiv(Poly):
+    c1 = list(random((4,)) + .5)
+    c2 = list(random((3,)) + .5)
+    c3 = list(random((2,)) + .5)
+    p1 = Poly(c1)
+    p2 = Poly(c2)
+    p3 = Poly(c3)
+    p4 = p1 * p2 + p3
+    c4 = list(p4.coef)
+    assert_poly_almost_equal(p4 // p2, p1)
+    assert_poly_almost_equal(p4 // c2, p1)
+    assert_poly_almost_equal(c4 // p2, p1)
+    assert_poly_almost_equal(p4 // tuple(c2), p1)
+    assert_poly_almost_equal(tuple(c4) // p2, p1)
+    assert_poly_almost_equal(p4 // np.array(c2), p1)
+    assert_poly_almost_equal(np.array(c4) // p2, p1)
+    assert_poly_almost_equal(2 // p2, Poly([0]))
+    assert_poly_almost_equal(p2 // 2, 0.5 * p2)
+    assert_raises(
+        TypeError, op.floordiv, p1, Poly([0], domain=Poly.domain + 1))
+    assert_raises(
+        TypeError, op.floordiv, p1, Poly([0], window=Poly.window + 1))
+    if Poly is Polynomial:
+        assert_raises(TypeError, op.floordiv, p1, Chebyshev([0]))
+    else:
+        assert_raises(TypeError, op.floordiv, p1, Polynomial([0]))
+
+
+def test_truediv(Poly):
+    # true division is valid only if the denominator is a Number and
+    # not a python bool.
+    p1 = Poly([1, 2, 3])
+    p2 = p1 * 5
+
+    for stype in np.ScalarType:
+        if not issubclass(stype, Number) or issubclass(stype, bool):
+            continue
+        s = stype(5)
+        assert_poly_almost_equal(op.truediv(p2, s), p1)
+        assert_raises(TypeError, op.truediv, s, p2)
+    for stype in (int, float):
+        s = stype(5)
+        assert_poly_almost_equal(op.truediv(p2, s), p1)
+        assert_raises(TypeError, op.truediv, s, p2)
+    for stype in [complex]:
+        s = stype(5, 0)
+        assert_poly_almost_equal(op.truediv(p2, s), p1)
+        assert_raises(TypeError, op.truediv, s, p2)
+    for s in [(), [], {}, False, np.array([1])]:
+        assert_raises(TypeError, op.truediv, p2, s)
+        assert_raises(TypeError, op.truediv, s, p2)
+    for ptype in classes:
+        assert_raises(TypeError, op.truediv, p2, ptype(1))
+
+
+def test_mod(Poly):
+    # This checks commutation, not numerical correctness
+    c1 = list(random((4,)) + .5)
+    c2 = list(random((3,)) + .5)
+    c3 = list(random((2,)) + .5)
+    p1 = Poly(c1)
+    p2 = Poly(c2)
+    p3 = Poly(c3)
+    p4 = p1 * p2 + p3
+    c4 = list(p4.coef)
+    assert_poly_almost_equal(p4 % p2, p3)
+    assert_poly_almost_equal(p4 % c2, p3)
+    assert_poly_almost_equal(c4 % p2, p3)
+    assert_poly_almost_equal(p4 % tuple(c2), p3)
+    assert_poly_almost_equal(tuple(c4) % p2, p3)
+    assert_poly_almost_equal(p4 % np.array(c2), p3)
+    assert_poly_almost_equal(np.array(c4) % p2, p3)
+    assert_poly_almost_equal(2 % p2, Poly([2]))
+    assert_poly_almost_equal(p2 % 2, Poly([0]))
+    assert_raises(TypeError, op.mod, p1, Poly([0], domain=Poly.domain + 1))
+    assert_raises(TypeError, op.mod, p1, Poly([0], window=Poly.window + 1))
+    if Poly is Polynomial:
+        assert_raises(TypeError, op.mod, p1, Chebyshev([0]))
+    else:
+        assert_raises(TypeError, op.mod, p1, Polynomial([0]))
+
+
+def test_divmod(Poly):
+    # This checks commutation, not numerical correctness
+    c1 = list(random((4,)) + .5)
+    c2 = list(random((3,)) + .5)
+    c3 = list(random((2,)) + .5)
+    p1 = Poly(c1)
+    p2 = Poly(c2)
+    p3 = Poly(c3)
+    p4 = p1 * p2 + p3
+    c4 = list(p4.coef)
+    quo, rem = divmod(p4, p2)
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(p4, c2)
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(c4, p2)
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(p4, tuple(c2))
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(tuple(c4), p2)
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(p4, np.array(c2))
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(np.array(c4), p2)
+    assert_poly_almost_equal(quo, p1)
+    assert_poly_almost_equal(rem, p3)
+    quo, rem = divmod(p2, 2)
+    assert_poly_almost_equal(quo, 0.5 * p2)
+    assert_poly_almost_equal(rem, Poly([0]))
+    quo, rem = divmod(2, p2)
+    assert_poly_almost_equal(quo, Poly([0]))
+    assert_poly_almost_equal(rem, Poly([2]))
+    assert_raises(TypeError, divmod, p1, Poly([0], domain=Poly.domain + 1))
+    assert_raises(TypeError, divmod, p1, Poly([0], window=Poly.window + 1))
+    if Poly is Polynomial:
+        assert_raises(TypeError, divmod, p1, Chebyshev([0]))
+    else:
+        assert_raises(TypeError, divmod, p1, Polynomial([0]))
+
+
+def test_roots(Poly):
+    d = Poly.domain * 1.25 + .25
+    w = Poly.window
+    tgt = np.linspace(d[0], d[1], 5)
+    res = np.sort(Poly.fromroots(tgt, domain=d, window=w).roots())
+    assert_almost_equal(res, tgt)
+    # default domain and window
+    res = np.sort(Poly.fromroots(tgt).roots())
+    assert_almost_equal(res, tgt)
+
+
+def test_degree(Poly):
+    p = Poly.basis(5)
+    assert_equal(p.degree(), 5)
+
+
+def test_copy(Poly):
+    p1 = Poly.basis(5)
+    p2 = p1.copy()
+    assert_(p1 == p2)
+    assert_(p1 is not p2)
+    assert_(p1.coef is not p2.coef)
+    assert_(p1.domain is not p2.domain)
+    assert_(p1.window is not p2.window)
+
+
+def test_integ(Poly):
+    P = Polynomial
+    # Check defaults
+    p0 = Poly.cast(P([1 * 2, 2 * 3, 3 * 4]))
+    p1 = P.cast(p0.integ())
+    p2 = P.cast(p0.integ(2))
+    assert_poly_almost_equal(p1, P([0, 2, 3, 4]))
+    assert_poly_almost_equal(p2, P([0, 0, 1, 1, 1]))
+    # Check with k
+    p0 = Poly.cast(P([1 * 2, 2 * 3, 3 * 4]))
+    p1 = P.cast(p0.integ(k=1))
+    p2 = P.cast(p0.integ(2, k=[1, 1]))
+    assert_poly_almost_equal(p1, P([1, 2, 3, 4]))
+    assert_poly_almost_equal(p2, P([1, 1, 1, 1, 1]))
+    # Check with lbnd
+    p0 = Poly.cast(P([1 * 2, 2 * 3, 3 * 4]))
+    p1 = P.cast(p0.integ(lbnd=1))
+    p2 = P.cast(p0.integ(2, lbnd=1))
+    assert_poly_almost_equal(p1, P([-9, 2, 3, 4]))
+    assert_poly_almost_equal(p2, P([6, -9, 1, 1, 1]))
+    # Check scaling
+    d = 2 * Poly.domain
+    p0 = Poly.cast(P([1 * 2, 2 * 3, 3 * 4]), domain=d)
+    p1 = P.cast(p0.integ())
+    p2 = P.cast(p0.integ(2))
+    assert_poly_almost_equal(p1, P([0, 2, 3, 4]))
+    assert_poly_almost_equal(p2, P([0, 0, 1, 1, 1]))
+
+
+def test_deriv(Poly):
+    # Check that the derivative is the inverse of integration. It is
+    # assumes that the integration has been checked elsewhere.
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    p1 = Poly([1, 2, 3], domain=d, window=w)
+    p2 = p1.integ(2, k=[1, 2])
+    p3 = p1.integ(1, k=[1])
+    assert_almost_equal(p2.deriv(1).coef, p3.coef)
+    assert_almost_equal(p2.deriv(2).coef, p1.coef)
+    # default domain and window
+    p1 = Poly([1, 2, 3])
+    p2 = p1.integ(2, k=[1, 2])
+    p3 = p1.integ(1, k=[1])
+    assert_almost_equal(p2.deriv(1).coef, p3.coef)
+    assert_almost_equal(p2.deriv(2).coef, p1.coef)
+
+
+def test_linspace(Poly):
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    p = Poly([1, 2, 3], domain=d, window=w)
+    # check default domain
+    xtgt = np.linspace(d[0], d[1], 20)
+    ytgt = p(xtgt)
+    xres, yres = p.linspace(20)
+    assert_almost_equal(xres, xtgt)
+    assert_almost_equal(yres, ytgt)
+    # check specified domain
+    xtgt = np.linspace(0, 2, 20)
+    ytgt = p(xtgt)
+    xres, yres = p.linspace(20, domain=[0, 2])
+    assert_almost_equal(xres, xtgt)
+    assert_almost_equal(yres, ytgt)
+
+
+def test_pow(Poly):
+    d = Poly.domain + random((2,)) * .25
+    w = Poly.window + random((2,)) * .25
+    tgt = Poly([1], domain=d, window=w)
+    tst = Poly([1, 2, 3], domain=d, window=w)
+    for i in range(5):
+        assert_poly_almost_equal(tst**i, tgt)
+        tgt = tgt * tst
+    # default domain and window
+    tgt = Poly([1])
+    tst = Poly([1, 2, 3])
+    for i in range(5):
+        assert_poly_almost_equal(tst**i, tgt)
+        tgt = tgt * tst
+    # check error for invalid powers
+    assert_raises(ValueError, op.pow, tgt, 1.5)
+    assert_raises(ValueError, op.pow, tgt, -1)
+
+
+def test_call(Poly):
+    P = Polynomial
+    d = Poly.domain
+    x = np.linspace(d[0], d[1], 11)
+
+    # Check defaults
+    p = Poly.cast(P([1, 2, 3]))
+    tgt = 1 + x * (2 + 3 * x)
+    res = p(x)
+    assert_almost_equal(res, tgt)
+
+
+def test_call_with_list(Poly):
+    p = Poly([1, 2, 3])
+    x = [-1, 0, 2]
+    res = p(x)
+    assert_equal(res, p(np.array(x)))
+
+
+def test_cutdeg(Poly):
+    p = Poly([1, 2, 3])
+    assert_raises(ValueError, p.cutdeg, .5)
+    assert_raises(ValueError, p.cutdeg, -1)
+    assert_equal(len(p.cutdeg(3)), 3)
+    assert_equal(len(p.cutdeg(2)), 3)
+    assert_equal(len(p.cutdeg(1)), 2)
+    assert_equal(len(p.cutdeg(0)), 1)
+
+
+def test_truncate(Poly):
+    p = Poly([1, 2, 3])
+    assert_raises(ValueError, p.truncate, .5)
+    assert_raises(ValueError, p.truncate, 0)
+    assert_equal(len(p.truncate(4)), 3)
+    assert_equal(len(p.truncate(3)), 3)
+    assert_equal(len(p.truncate(2)), 2)
+    assert_equal(len(p.truncate(1)), 1)
+
+
+def test_trim(Poly):
+    c = [1, 1e-6, 1e-12, 0]
+    p = Poly(c)
+    assert_equal(p.trim().coef, c[:3])
+    assert_equal(p.trim(1e-10).coef, c[:2])
+    assert_equal(p.trim(1e-5).coef, c[:1])
+
+
+def test_mapparms(Poly):
+    # check with defaults. Should be identity.
+    d = Poly.domain
+    w = Poly.window
+    p = Poly([1], domain=d, window=w)
+    assert_almost_equal([0, 1], p.mapparms())
+    #
+    w = 2 * d + 1
+    p = Poly([1], domain=d, window=w)
+    assert_almost_equal([1, 2], p.mapparms())
+
+
+def test_ufunc_override(Poly):
+    p = Poly([1, 2, 3])
+    x = np.ones(3)
+    assert_raises(TypeError, np.add, p, x)
+    assert_raises(TypeError, np.add, x, p)
+
+
+#
+# Test class method that only exists for some classes
+#
+
+
+class TestInterpolate:
+
+    def f(self, x):
+        return x * (x - 1) * (x - 2)
+
+    def test_raises(self):
+        assert_raises(ValueError, Chebyshev.interpolate, self.f, -1)
+        assert_raises(TypeError, Chebyshev.interpolate, self.f, 10.)
+
+    def test_dimensions(self):
+        for deg in range(1, 5):
+            assert_(Chebyshev.interpolate(self.f, deg).degree() == deg)
+
+    def test_approximation(self):
+
+        def powx(x, p):
+            return x**p
+
+        x = np.linspace(0, 2, 10)
+        for deg in range(10):
+            for t in range(deg + 1):
+                p = Chebyshev.interpolate(powx, deg, domain=[0, 2], args=(t,))
+                assert_almost_equal(p(x), powx(x, t), decimal=11)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_hermite.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_hermite.py
new file mode 100644
index 0000000000000000000000000000000000000000..8b8d2caa8dddbd36f1868d299663019786a7baa1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_hermite.py
@@ -0,0 +1,553 @@
+"""Tests for hermite module.
+
+"""
+from functools import reduce
+
+import numpy as np
+import numpy.polynomial.hermite as herm
+from numpy.polynomial.polynomial import polyval
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+H0 = np.array([1])
+H1 = np.array([0, 2])
+H2 = np.array([-2, 0, 4])
+H3 = np.array([0, -12, 0, 8])
+H4 = np.array([12, 0, -48, 0, 16])
+H5 = np.array([0, 120, 0, -160, 0, 32])
+H6 = np.array([-120, 0, 720, 0, -480, 0, 64])
+H7 = np.array([0, -1680, 0, 3360, 0, -1344, 0, 128])
+H8 = np.array([1680, 0, -13440, 0, 13440, 0, -3584, 0, 256])
+H9 = np.array([0, 30240, 0, -80640, 0, 48384, 0, -9216, 0, 512])
+
+Hlist = [H0, H1, H2, H3, H4, H5, H6, H7, H8, H9]
+
+
+def trim(x):
+    return herm.hermtrim(x, tol=1e-6)
+
+
+class TestConstants:
+
+    def test_hermdomain(self):
+        assert_equal(herm.hermdomain, [-1, 1])
+
+    def test_hermzero(self):
+        assert_equal(herm.hermzero, [0])
+
+    def test_hermone(self):
+        assert_equal(herm.hermone, [1])
+
+    def test_hermx(self):
+        assert_equal(herm.hermx, [0, .5])
+
+
+class TestArithmetic:
+    x = np.linspace(-3, 3, 100)
+
+    def test_hermadd(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] += 1
+                res = herm.hermadd([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_hermsub(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] -= 1
+                res = herm.hermsub([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_hermmulx(self):
+        assert_equal(herm.hermmulx([0]), [0])
+        assert_equal(herm.hermmulx([1]), [0, .5])
+        for i in range(1, 5):
+            ser = [0] * i + [1]
+            tgt = [0] * (i - 1) + [i, 0, .5]
+            assert_equal(herm.hermmulx(ser), tgt)
+
+    def test_hermmul(self):
+        # check values of result
+        for i in range(5):
+            pol1 = [0] * i + [1]
+            val1 = herm.hermval(self.x, pol1)
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                pol2 = [0] * j + [1]
+                val2 = herm.hermval(self.x, pol2)
+                pol3 = herm.hermmul(pol1, pol2)
+                val3 = herm.hermval(self.x, pol3)
+                assert_(len(pol3) == i + j + 1, msg)
+                assert_almost_equal(val3, val1 * val2, err_msg=msg)
+
+    def test_hermdiv(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                ci = [0] * i + [1]
+                cj = [0] * j + [1]
+                tgt = herm.hermadd(ci, cj)
+                quo, rem = herm.hermdiv(tgt, ci)
+                res = herm.hermadd(herm.hermmul(quo, ci), rem)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_hermpow(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                c = np.arange(i + 1)
+                tgt = reduce(herm.hermmul, [c] * j, np.array([1]))
+                res = herm.hermpow(c, j)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+
+class TestEvaluation:
+    # coefficients of 1 + 2*x + 3*x**2
+    c1d = np.array([2.5, 1., .75])
+    c2d = np.einsum('i,j->ij', c1d, c1d)
+    c3d = np.einsum('i,j,k->ijk', c1d, c1d, c1d)
+
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+    y = polyval(x, [1., 2., 3.])
+
+    def test_hermval(self):
+        # check empty input
+        assert_equal(herm.hermval([], [1]).size, 0)
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [polyval(x, c) for c in Hlist]
+        for i in range(10):
+            msg = f"At i={i}"
+            tgt = y[i]
+            res = herm.hermval(x, [0] * i + [1])
+            assert_almost_equal(res, tgt, err_msg=msg)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(herm.hermval(x, [1]).shape, dims)
+            assert_equal(herm.hermval(x, [1, 0]).shape, dims)
+            assert_equal(herm.hermval(x, [1, 0, 0]).shape, dims)
+
+    def test_hermval2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, herm.hermval2d, x1, x2[:2], self.c2d)
+
+        # test values
+        tgt = y1 * y2
+        res = herm.hermval2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herm.hermval2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3))
+
+    def test_hermval3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, herm.hermval3d, x1, x2, x3[:2], self.c3d)
+
+        # test values
+        tgt = y1 * y2 * y3
+        res = herm.hermval3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herm.hermval3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3))
+
+    def test_hermgrid2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j->ij', y1, y2)
+        res = herm.hermgrid2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herm.hermgrid2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3) * 2)
+
+    def test_hermgrid3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j,k->ijk', y1, y2, y3)
+        res = herm.hermgrid3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herm.hermgrid3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3) * 3)
+
+
+class TestIntegral:
+
+    def test_hermint(self):
+        # check exceptions
+        assert_raises(TypeError, herm.hermint, [0], .5)
+        assert_raises(ValueError, herm.hermint, [0], -1)
+        assert_raises(ValueError, herm.hermint, [0], 1, [0, 0])
+        assert_raises(ValueError, herm.hermint, [0], lbnd=[0])
+        assert_raises(ValueError, herm.hermint, [0], scl=[0])
+        assert_raises(TypeError, herm.hermint, [0], axis=.5)
+
+        # test integration of zero polynomial
+        for i in range(2, 5):
+            k = [0] * (i - 2) + [1]
+            res = herm.hermint([0], m=i, k=k)
+            assert_almost_equal(res, [0, .5])
+
+        # check single integration with integration constant
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [1 / scl]
+            hermpol = herm.poly2herm(pol)
+            hermint = herm.hermint(hermpol, m=1, k=[i])
+            res = herm.herm2poly(hermint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check single integration with integration constant and lbnd
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            hermpol = herm.poly2herm(pol)
+            hermint = herm.hermint(hermpol, m=1, k=[i], lbnd=-1)
+            assert_almost_equal(herm.hermval(-1, hermint), i)
+
+        # check single integration with integration constant and scaling
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [2 / scl]
+            hermpol = herm.poly2herm(pol)
+            hermint = herm.hermint(hermpol, m=1, k=[i], scl=2)
+            res = herm.herm2poly(hermint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with default k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herm.hermint(tgt, m=1)
+                res = herm.hermint(pol, m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with defined k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herm.hermint(tgt, m=1, k=[k])
+                res = herm.hermint(pol, m=j, k=list(range(j)))
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with lbnd
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herm.hermint(tgt, m=1, k=[k], lbnd=-1)
+                res = herm.hermint(pol, m=j, k=list(range(j)), lbnd=-1)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herm.hermint(tgt, m=1, k=[k], scl=2)
+                res = herm.hermint(pol, m=j, k=list(range(j)), scl=2)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_hermint_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([herm.hermint(c) for c in c2d.T]).T
+        res = herm.hermint(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([herm.hermint(c) for c in c2d])
+        res = herm.hermint(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([herm.hermint(c, k=3) for c in c2d])
+        res = herm.hermint(c2d, k=3, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestDerivative:
+
+    def test_hermder(self):
+        # check exceptions
+        assert_raises(TypeError, herm.hermder, [0], .5)
+        assert_raises(ValueError, herm.hermder, [0], -1)
+
+        # check that zeroth derivative does nothing
+        for i in range(5):
+            tgt = [0] * i + [1]
+            res = herm.hermder(tgt, m=0)
+            assert_equal(trim(res), trim(tgt))
+
+        # check that derivation is the inverse of integration
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = herm.hermder(herm.hermint(tgt, m=j), m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check derivation with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = herm.hermder(herm.hermint(tgt, m=j, scl=2), m=j, scl=.5)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_hermder_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([herm.hermder(c) for c in c2d.T]).T
+        res = herm.hermder(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([herm.hermder(c) for c in c2d])
+        res = herm.hermder(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestVander:
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+
+    def test_hermvander(self):
+        # check for 1d x
+        x = np.arange(3)
+        v = herm.hermvander(x, 3)
+        assert_(v.shape == (3, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], herm.hermval(x, coef))
+
+        # check for 2d x
+        x = np.array([[1, 2], [3, 4], [5, 6]])
+        v = herm.hermvander(x, 3)
+        assert_(v.shape == (3, 2, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], herm.hermval(x, coef))
+
+    def test_hermvander2d(self):
+        # also tests hermval2d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3))
+        van = herm.hermvander2d(x1, x2, [1, 2])
+        tgt = herm.hermval2d(x1, x2, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = herm.hermvander2d([x1], [x2], [1, 2])
+        assert_(van.shape == (1, 5, 6))
+
+    def test_hermvander3d(self):
+        # also tests hermval3d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3, 4))
+        van = herm.hermvander3d(x1, x2, x3, [1, 2, 3])
+        tgt = herm.hermval3d(x1, x2, x3, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = herm.hermvander3d([x1], [x2], [x3], [1, 2, 3])
+        assert_(van.shape == (1, 5, 24))
+
+
+class TestFitting:
+
+    def test_hermfit(self):
+        def f(x):
+            return x * (x - 1) * (x - 2)
+
+        def f2(x):
+            return x**4 + x**2 + 1
+
+        # Test exceptions
+        assert_raises(ValueError, herm.hermfit, [1], [1], -1)
+        assert_raises(TypeError, herm.hermfit, [[1]], [1], 0)
+        assert_raises(TypeError, herm.hermfit, [], [1], 0)
+        assert_raises(TypeError, herm.hermfit, [1], [[[1]]], 0)
+        assert_raises(TypeError, herm.hermfit, [1, 2], [1], 0)
+        assert_raises(TypeError, herm.hermfit, [1], [1, 2], 0)
+        assert_raises(TypeError, herm.hermfit, [1], [1], 0, w=[[1]])
+        assert_raises(TypeError, herm.hermfit, [1], [1], 0, w=[1, 1])
+        assert_raises(ValueError, herm.hermfit, [1], [1], [-1,])
+        assert_raises(ValueError, herm.hermfit, [1], [1], [2, -1, 6])
+        assert_raises(TypeError, herm.hermfit, [1], [1], [])
+
+        # Test fit
+        x = np.linspace(0, 2)
+        y = f(x)
+        #
+        coef3 = herm.hermfit(x, y, 3)
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(herm.hermval(x, coef3), y)
+        coef3 = herm.hermfit(x, y, [0, 1, 2, 3])
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(herm.hermval(x, coef3), y)
+        #
+        coef4 = herm.hermfit(x, y, 4)
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(herm.hermval(x, coef4), y)
+        coef4 = herm.hermfit(x, y, [0, 1, 2, 3, 4])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(herm.hermval(x, coef4), y)
+        # check things still work if deg is not in strict increasing
+        coef4 = herm.hermfit(x, y, [2, 3, 4, 1, 0])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(herm.hermval(x, coef4), y)
+        #
+        coef2d = herm.hermfit(x, np.array([y, y]).T, 3)
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        coef2d = herm.hermfit(x, np.array([y, y]).T, [0, 1, 2, 3])
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        # test weighting
+        w = np.zeros_like(x)
+        yw = y.copy()
+        w[1::2] = 1
+        y[0::2] = 0
+        wcoef3 = herm.hermfit(x, yw, 3, w=w)
+        assert_almost_equal(wcoef3, coef3)
+        wcoef3 = herm.hermfit(x, yw, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef3, coef3)
+        #
+        wcoef2d = herm.hermfit(x, np.array([yw, yw]).T, 3, w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        wcoef2d = herm.hermfit(x, np.array([yw, yw]).T, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        # test scaling with complex values x points whose square
+        # is zero when summed.
+        x = [1, 1j, -1, -1j]
+        assert_almost_equal(herm.hermfit(x, x, 1), [0, .5])
+        assert_almost_equal(herm.hermfit(x, x, [0, 1]), [0, .5])
+        # test fitting only even Legendre polynomials
+        x = np.linspace(-1, 1)
+        y = f2(x)
+        coef1 = herm.hermfit(x, y, 4)
+        assert_almost_equal(herm.hermval(x, coef1), y)
+        coef2 = herm.hermfit(x, y, [0, 2, 4])
+        assert_almost_equal(herm.hermval(x, coef2), y)
+        assert_almost_equal(coef1, coef2)
+
+
+class TestCompanion:
+
+    def test_raises(self):
+        assert_raises(ValueError, herm.hermcompanion, [])
+        assert_raises(ValueError, herm.hermcompanion, [1])
+
+    def test_dimensions(self):
+        for i in range(1, 5):
+            coef = [0] * i + [1]
+            assert_(herm.hermcompanion(coef).shape == (i, i))
+
+    def test_linear_root(self):
+        assert_(herm.hermcompanion([1, 2])[0, 0] == -.25)
+
+
+class TestGauss:
+
+    def test_100(self):
+        x, w = herm.hermgauss(100)
+
+        # test orthogonality. Note that the results need to be normalized,
+        # otherwise the huge values that can arise from fast growing
+        # functions like Laguerre can be very confusing.
+        v = herm.hermvander(x, 99)
+        vv = np.dot(v.T * w, v)
+        vd = 1 / np.sqrt(vv.diagonal())
+        vv = vd[:, None] * vv * vd
+        assert_almost_equal(vv, np.eye(100))
+
+        # check that the integral of 1 is correct
+        tgt = np.sqrt(np.pi)
+        assert_almost_equal(w.sum(), tgt)
+
+
+class TestMisc:
+
+    def test_hermfromroots(self):
+        res = herm.hermfromroots([])
+        assert_almost_equal(trim(res), [1])
+        for i in range(1, 5):
+            roots = np.cos(np.linspace(-np.pi, 0, 2 * i + 1)[1::2])
+            pol = herm.hermfromroots(roots)
+            res = herm.hermval(roots, pol)
+            tgt = 0
+            assert_(len(pol) == i + 1)
+            assert_almost_equal(herm.herm2poly(pol)[-1], 1)
+            assert_almost_equal(res, tgt)
+
+    def test_hermroots(self):
+        assert_almost_equal(herm.hermroots([1]), [])
+        assert_almost_equal(herm.hermroots([1, 1]), [-.5])
+        for i in range(2, 5):
+            tgt = np.linspace(-1, 1, i)
+            res = herm.hermroots(herm.hermfromroots(tgt))
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_hermtrim(self):
+        coef = [2, -1, 1, 0]
+
+        # Test exceptions
+        assert_raises(ValueError, herm.hermtrim, coef, -1)
+
+        # Test results
+        assert_equal(herm.hermtrim(coef), coef[:-1])
+        assert_equal(herm.hermtrim(coef, 1), coef[:-3])
+        assert_equal(herm.hermtrim(coef, 2), [0])
+
+    def test_hermline(self):
+        assert_equal(herm.hermline(3, 4), [3, 2])
+
+    def test_herm2poly(self):
+        for i in range(10):
+            assert_almost_equal(herm.herm2poly([0] * i + [1]), Hlist[i])
+
+    def test_poly2herm(self):
+        for i in range(10):
+            assert_almost_equal(herm.poly2herm(Hlist[i]), [0] * i + [1])
+
+    def test_weight(self):
+        x = np.linspace(-5, 5, 11)
+        tgt = np.exp(-x**2)
+        res = herm.hermweight(x)
+        assert_almost_equal(res, tgt)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_hermite_e.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_hermite_e.py
new file mode 100644
index 0000000000000000000000000000000000000000..4560125566c85c267044cc30587ad8d2b0e6fd35
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_hermite_e.py
@@ -0,0 +1,554 @@
+"""Tests for hermite_e module.
+
+"""
+from functools import reduce
+
+import numpy as np
+import numpy.polynomial.hermite_e as herme
+from numpy.polynomial.polynomial import polyval
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+He0 = np.array([1])
+He1 = np.array([0, 1])
+He2 = np.array([-1, 0, 1])
+He3 = np.array([0, -3, 0, 1])
+He4 = np.array([3, 0, -6, 0, 1])
+He5 = np.array([0, 15, 0, -10, 0, 1])
+He6 = np.array([-15, 0, 45, 0, -15, 0, 1])
+He7 = np.array([0, -105, 0, 105, 0, -21, 0, 1])
+He8 = np.array([105, 0, -420, 0, 210, 0, -28, 0, 1])
+He9 = np.array([0, 945, 0, -1260, 0, 378, 0, -36, 0, 1])
+
+Helist = [He0, He1, He2, He3, He4, He5, He6, He7, He8, He9]
+
+
+def trim(x):
+    return herme.hermetrim(x, tol=1e-6)
+
+
+class TestConstants:
+
+    def test_hermedomain(self):
+        assert_equal(herme.hermedomain, [-1, 1])
+
+    def test_hermezero(self):
+        assert_equal(herme.hermezero, [0])
+
+    def test_hermeone(self):
+        assert_equal(herme.hermeone, [1])
+
+    def test_hermex(self):
+        assert_equal(herme.hermex, [0, 1])
+
+
+class TestArithmetic:
+    x = np.linspace(-3, 3, 100)
+
+    def test_hermeadd(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] += 1
+                res = herme.hermeadd([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_hermesub(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] -= 1
+                res = herme.hermesub([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_hermemulx(self):
+        assert_equal(herme.hermemulx([0]), [0])
+        assert_equal(herme.hermemulx([1]), [0, 1])
+        for i in range(1, 5):
+            ser = [0] * i + [1]
+            tgt = [0] * (i - 1) + [i, 0, 1]
+            assert_equal(herme.hermemulx(ser), tgt)
+
+    def test_hermemul(self):
+        # check values of result
+        for i in range(5):
+            pol1 = [0] * i + [1]
+            val1 = herme.hermeval(self.x, pol1)
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                pol2 = [0] * j + [1]
+                val2 = herme.hermeval(self.x, pol2)
+                pol3 = herme.hermemul(pol1, pol2)
+                val3 = herme.hermeval(self.x, pol3)
+                assert_(len(pol3) == i + j + 1, msg)
+                assert_almost_equal(val3, val1 * val2, err_msg=msg)
+
+    def test_hermediv(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                ci = [0] * i + [1]
+                cj = [0] * j + [1]
+                tgt = herme.hermeadd(ci, cj)
+                quo, rem = herme.hermediv(tgt, ci)
+                res = herme.hermeadd(herme.hermemul(quo, ci), rem)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_hermepow(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                c = np.arange(i + 1)
+                tgt = reduce(herme.hermemul, [c] * j, np.array([1]))
+                res = herme.hermepow(c, j)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+
+class TestEvaluation:
+    # coefficients of 1 + 2*x + 3*x**2
+    c1d = np.array([4., 2., 3.])
+    c2d = np.einsum('i,j->ij', c1d, c1d)
+    c3d = np.einsum('i,j,k->ijk', c1d, c1d, c1d)
+
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+    y = polyval(x, [1., 2., 3.])
+
+    def test_hermeval(self):
+        # check empty input
+        assert_equal(herme.hermeval([], [1]).size, 0)
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [polyval(x, c) for c in Helist]
+        for i in range(10):
+            msg = f"At i={i}"
+            tgt = y[i]
+            res = herme.hermeval(x, [0] * i + [1])
+            assert_almost_equal(res, tgt, err_msg=msg)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(herme.hermeval(x, [1]).shape, dims)
+            assert_equal(herme.hermeval(x, [1, 0]).shape, dims)
+            assert_equal(herme.hermeval(x, [1, 0, 0]).shape, dims)
+
+    def test_hermeval2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, herme.hermeval2d, x1, x2[:2], self.c2d)
+
+        # test values
+        tgt = y1 * y2
+        res = herme.hermeval2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herme.hermeval2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3))
+
+    def test_hermeval3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, herme.hermeval3d, x1, x2, x3[:2], self.c3d)
+
+        # test values
+        tgt = y1 * y2 * y3
+        res = herme.hermeval3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herme.hermeval3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3))
+
+    def test_hermegrid2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j->ij', y1, y2)
+        res = herme.hermegrid2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herme.hermegrid2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3) * 2)
+
+    def test_hermegrid3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j,k->ijk', y1, y2, y3)
+        res = herme.hermegrid3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = herme.hermegrid3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3) * 3)
+
+
+class TestIntegral:
+
+    def test_hermeint(self):
+        # check exceptions
+        assert_raises(TypeError, herme.hermeint, [0], .5)
+        assert_raises(ValueError, herme.hermeint, [0], -1)
+        assert_raises(ValueError, herme.hermeint, [0], 1, [0, 0])
+        assert_raises(ValueError, herme.hermeint, [0], lbnd=[0])
+        assert_raises(ValueError, herme.hermeint, [0], scl=[0])
+        assert_raises(TypeError, herme.hermeint, [0], axis=.5)
+
+        # test integration of zero polynomial
+        for i in range(2, 5):
+            k = [0] * (i - 2) + [1]
+            res = herme.hermeint([0], m=i, k=k)
+            assert_almost_equal(res, [0, 1])
+
+        # check single integration with integration constant
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [1 / scl]
+            hermepol = herme.poly2herme(pol)
+            hermeint = herme.hermeint(hermepol, m=1, k=[i])
+            res = herme.herme2poly(hermeint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check single integration with integration constant and lbnd
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            hermepol = herme.poly2herme(pol)
+            hermeint = herme.hermeint(hermepol, m=1, k=[i], lbnd=-1)
+            assert_almost_equal(herme.hermeval(-1, hermeint), i)
+
+        # check single integration with integration constant and scaling
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [2 / scl]
+            hermepol = herme.poly2herme(pol)
+            hermeint = herme.hermeint(hermepol, m=1, k=[i], scl=2)
+            res = herme.herme2poly(hermeint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with default k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herme.hermeint(tgt, m=1)
+                res = herme.hermeint(pol, m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with defined k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herme.hermeint(tgt, m=1, k=[k])
+                res = herme.hermeint(pol, m=j, k=list(range(j)))
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with lbnd
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herme.hermeint(tgt, m=1, k=[k], lbnd=-1)
+                res = herme.hermeint(pol, m=j, k=list(range(j)), lbnd=-1)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = herme.hermeint(tgt, m=1, k=[k], scl=2)
+                res = herme.hermeint(pol, m=j, k=list(range(j)), scl=2)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_hermeint_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([herme.hermeint(c) for c in c2d.T]).T
+        res = herme.hermeint(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([herme.hermeint(c) for c in c2d])
+        res = herme.hermeint(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([herme.hermeint(c, k=3) for c in c2d])
+        res = herme.hermeint(c2d, k=3, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestDerivative:
+
+    def test_hermeder(self):
+        # check exceptions
+        assert_raises(TypeError, herme.hermeder, [0], .5)
+        assert_raises(ValueError, herme.hermeder, [0], -1)
+
+        # check that zeroth derivative does nothing
+        for i in range(5):
+            tgt = [0] * i + [1]
+            res = herme.hermeder(tgt, m=0)
+            assert_equal(trim(res), trim(tgt))
+
+        # check that derivation is the inverse of integration
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = herme.hermeder(herme.hermeint(tgt, m=j), m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check derivation with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = herme.hermeder(
+                    herme.hermeint(tgt, m=j, scl=2), m=j, scl=.5)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_hermeder_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([herme.hermeder(c) for c in c2d.T]).T
+        res = herme.hermeder(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([herme.hermeder(c) for c in c2d])
+        res = herme.hermeder(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestVander:
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+
+    def test_hermevander(self):
+        # check for 1d x
+        x = np.arange(3)
+        v = herme.hermevander(x, 3)
+        assert_(v.shape == (3, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], herme.hermeval(x, coef))
+
+        # check for 2d x
+        x = np.array([[1, 2], [3, 4], [5, 6]])
+        v = herme.hermevander(x, 3)
+        assert_(v.shape == (3, 2, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], herme.hermeval(x, coef))
+
+    def test_hermevander2d(self):
+        # also tests hermeval2d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3))
+        van = herme.hermevander2d(x1, x2, [1, 2])
+        tgt = herme.hermeval2d(x1, x2, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = herme.hermevander2d([x1], [x2], [1, 2])
+        assert_(van.shape == (1, 5, 6))
+
+    def test_hermevander3d(self):
+        # also tests hermeval3d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3, 4))
+        van = herme.hermevander3d(x1, x2, x3, [1, 2, 3])
+        tgt = herme.hermeval3d(x1, x2, x3, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = herme.hermevander3d([x1], [x2], [x3], [1, 2, 3])
+        assert_(van.shape == (1, 5, 24))
+
+
+class TestFitting:
+
+    def test_hermefit(self):
+        def f(x):
+            return x * (x - 1) * (x - 2)
+
+        def f2(x):
+            return x**4 + x**2 + 1
+
+        # Test exceptions
+        assert_raises(ValueError, herme.hermefit, [1], [1], -1)
+        assert_raises(TypeError, herme.hermefit, [[1]], [1], 0)
+        assert_raises(TypeError, herme.hermefit, [], [1], 0)
+        assert_raises(TypeError, herme.hermefit, [1], [[[1]]], 0)
+        assert_raises(TypeError, herme.hermefit, [1, 2], [1], 0)
+        assert_raises(TypeError, herme.hermefit, [1], [1, 2], 0)
+        assert_raises(TypeError, herme.hermefit, [1], [1], 0, w=[[1]])
+        assert_raises(TypeError, herme.hermefit, [1], [1], 0, w=[1, 1])
+        assert_raises(ValueError, herme.hermefit, [1], [1], [-1,])
+        assert_raises(ValueError, herme.hermefit, [1], [1], [2, -1, 6])
+        assert_raises(TypeError, herme.hermefit, [1], [1], [])
+
+        # Test fit
+        x = np.linspace(0, 2)
+        y = f(x)
+        #
+        coef3 = herme.hermefit(x, y, 3)
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(herme.hermeval(x, coef3), y)
+        coef3 = herme.hermefit(x, y, [0, 1, 2, 3])
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(herme.hermeval(x, coef3), y)
+        #
+        coef4 = herme.hermefit(x, y, 4)
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(herme.hermeval(x, coef4), y)
+        coef4 = herme.hermefit(x, y, [0, 1, 2, 3, 4])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(herme.hermeval(x, coef4), y)
+        # check things still work if deg is not in strict increasing
+        coef4 = herme.hermefit(x, y, [2, 3, 4, 1, 0])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(herme.hermeval(x, coef4), y)
+        #
+        coef2d = herme.hermefit(x, np.array([y, y]).T, 3)
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        coef2d = herme.hermefit(x, np.array([y, y]).T, [0, 1, 2, 3])
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        # test weighting
+        w = np.zeros_like(x)
+        yw = y.copy()
+        w[1::2] = 1
+        y[0::2] = 0
+        wcoef3 = herme.hermefit(x, yw, 3, w=w)
+        assert_almost_equal(wcoef3, coef3)
+        wcoef3 = herme.hermefit(x, yw, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef3, coef3)
+        #
+        wcoef2d = herme.hermefit(x, np.array([yw, yw]).T, 3, w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        wcoef2d = herme.hermefit(x, np.array([yw, yw]).T, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        # test scaling with complex values x points whose square
+        # is zero when summed.
+        x = [1, 1j, -1, -1j]
+        assert_almost_equal(herme.hermefit(x, x, 1), [0, 1])
+        assert_almost_equal(herme.hermefit(x, x, [0, 1]), [0, 1])
+        # test fitting only even Legendre polynomials
+        x = np.linspace(-1, 1)
+        y = f2(x)
+        coef1 = herme.hermefit(x, y, 4)
+        assert_almost_equal(herme.hermeval(x, coef1), y)
+        coef2 = herme.hermefit(x, y, [0, 2, 4])
+        assert_almost_equal(herme.hermeval(x, coef2), y)
+        assert_almost_equal(coef1, coef2)
+
+
+class TestCompanion:
+
+    def test_raises(self):
+        assert_raises(ValueError, herme.hermecompanion, [])
+        assert_raises(ValueError, herme.hermecompanion, [1])
+
+    def test_dimensions(self):
+        for i in range(1, 5):
+            coef = [0] * i + [1]
+            assert_(herme.hermecompanion(coef).shape == (i, i))
+
+    def test_linear_root(self):
+        assert_(herme.hermecompanion([1, 2])[0, 0] == -.5)
+
+
+class TestGauss:
+
+    def test_100(self):
+        x, w = herme.hermegauss(100)
+
+        # test orthogonality. Note that the results need to be normalized,
+        # otherwise the huge values that can arise from fast growing
+        # functions like Laguerre can be very confusing.
+        v = herme.hermevander(x, 99)
+        vv = np.dot(v.T * w, v)
+        vd = 1 / np.sqrt(vv.diagonal())
+        vv = vd[:, None] * vv * vd
+        assert_almost_equal(vv, np.eye(100))
+
+        # check that the integral of 1 is correct
+        tgt = np.sqrt(2 * np.pi)
+        assert_almost_equal(w.sum(), tgt)
+
+
+class TestMisc:
+
+    def test_hermefromroots(self):
+        res = herme.hermefromroots([])
+        assert_almost_equal(trim(res), [1])
+        for i in range(1, 5):
+            roots = np.cos(np.linspace(-np.pi, 0, 2 * i + 1)[1::2])
+            pol = herme.hermefromroots(roots)
+            res = herme.hermeval(roots, pol)
+            tgt = 0
+            assert_(len(pol) == i + 1)
+            assert_almost_equal(herme.herme2poly(pol)[-1], 1)
+            assert_almost_equal(res, tgt)
+
+    def test_hermeroots(self):
+        assert_almost_equal(herme.hermeroots([1]), [])
+        assert_almost_equal(herme.hermeroots([1, 1]), [-1])
+        for i in range(2, 5):
+            tgt = np.linspace(-1, 1, i)
+            res = herme.hermeroots(herme.hermefromroots(tgt))
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_hermetrim(self):
+        coef = [2, -1, 1, 0]
+
+        # Test exceptions
+        assert_raises(ValueError, herme.hermetrim, coef, -1)
+
+        # Test results
+        assert_equal(herme.hermetrim(coef), coef[:-1])
+        assert_equal(herme.hermetrim(coef, 1), coef[:-3])
+        assert_equal(herme.hermetrim(coef, 2), [0])
+
+    def test_hermeline(self):
+        assert_equal(herme.hermeline(3, 4), [3, 4])
+
+    def test_herme2poly(self):
+        for i in range(10):
+            assert_almost_equal(herme.herme2poly([0] * i + [1]), Helist[i])
+
+    def test_poly2herme(self):
+        for i in range(10):
+            assert_almost_equal(herme.poly2herme(Helist[i]), [0] * i + [1])
+
+    def test_weight(self):
+        x = np.linspace(-5, 5, 11)
+        tgt = np.exp(-.5 * x**2)
+        res = herme.hermeweight(x)
+        assert_almost_equal(res, tgt)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_laguerre.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_laguerre.py
new file mode 100644
index 0000000000000000000000000000000000000000..7cc017c5d2c035e5c69d1551c504d0c39dcaedd0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_laguerre.py
@@ -0,0 +1,535 @@
+"""Tests for laguerre module.
+
+"""
+from functools import reduce
+
+import numpy as np
+import numpy.polynomial.laguerre as lag
+from numpy.polynomial.polynomial import polyval
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+L0 = np.array([1]) / 1
+L1 = np.array([1, -1]) / 1
+L2 = np.array([2, -4, 1]) / 2
+L3 = np.array([6, -18, 9, -1]) / 6
+L4 = np.array([24, -96, 72, -16, 1]) / 24
+L5 = np.array([120, -600, 600, -200, 25, -1]) / 120
+L6 = np.array([720, -4320, 5400, -2400, 450, -36, 1]) / 720
+
+Llist = [L0, L1, L2, L3, L4, L5, L6]
+
+
+def trim(x):
+    return lag.lagtrim(x, tol=1e-6)
+
+
+class TestConstants:
+
+    def test_lagdomain(self):
+        assert_equal(lag.lagdomain, [0, 1])
+
+    def test_lagzero(self):
+        assert_equal(lag.lagzero, [0])
+
+    def test_lagone(self):
+        assert_equal(lag.lagone, [1])
+
+    def test_lagx(self):
+        assert_equal(lag.lagx, [1, -1])
+
+
+class TestArithmetic:
+    x = np.linspace(-3, 3, 100)
+
+    def test_lagadd(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] += 1
+                res = lag.lagadd([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_lagsub(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] -= 1
+                res = lag.lagsub([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_lagmulx(self):
+        assert_equal(lag.lagmulx([0]), [0])
+        assert_equal(lag.lagmulx([1]), [1, -1])
+        for i in range(1, 5):
+            ser = [0] * i + [1]
+            tgt = [0] * (i - 1) + [-i, 2 * i + 1, -(i + 1)]
+            assert_almost_equal(lag.lagmulx(ser), tgt)
+
+    def test_lagmul(self):
+        # check values of result
+        for i in range(5):
+            pol1 = [0] * i + [1]
+            val1 = lag.lagval(self.x, pol1)
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                pol2 = [0] * j + [1]
+                val2 = lag.lagval(self.x, pol2)
+                pol3 = lag.lagmul(pol1, pol2)
+                val3 = lag.lagval(self.x, pol3)
+                assert_(len(pol3) == i + j + 1, msg)
+                assert_almost_equal(val3, val1 * val2, err_msg=msg)
+
+    def test_lagdiv(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                ci = [0] * i + [1]
+                cj = [0] * j + [1]
+                tgt = lag.lagadd(ci, cj)
+                quo, rem = lag.lagdiv(tgt, ci)
+                res = lag.lagadd(lag.lagmul(quo, ci), rem)
+                assert_almost_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_lagpow(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                c = np.arange(i + 1)
+                tgt = reduce(lag.lagmul, [c] * j, np.array([1]))
+                res = lag.lagpow(c, j)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+
+class TestEvaluation:
+    # coefficients of 1 + 2*x + 3*x**2
+    c1d = np.array([9., -14., 6.])
+    c2d = np.einsum('i,j->ij', c1d, c1d)
+    c3d = np.einsum('i,j,k->ijk', c1d, c1d, c1d)
+
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+    y = polyval(x, [1., 2., 3.])
+
+    def test_lagval(self):
+        # check empty input
+        assert_equal(lag.lagval([], [1]).size, 0)
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [polyval(x, c) for c in Llist]
+        for i in range(7):
+            msg = f"At i={i}"
+            tgt = y[i]
+            res = lag.lagval(x, [0] * i + [1])
+            assert_almost_equal(res, tgt, err_msg=msg)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(lag.lagval(x, [1]).shape, dims)
+            assert_equal(lag.lagval(x, [1, 0]).shape, dims)
+            assert_equal(lag.lagval(x, [1, 0, 0]).shape, dims)
+
+    def test_lagval2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, lag.lagval2d, x1, x2[:2], self.c2d)
+
+        # test values
+        tgt = y1 * y2
+        res = lag.lagval2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = lag.lagval2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3))
+
+    def test_lagval3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, lag.lagval3d, x1, x2, x3[:2], self.c3d)
+
+        # test values
+        tgt = y1 * y2 * y3
+        res = lag.lagval3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = lag.lagval3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3))
+
+    def test_laggrid2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j->ij', y1, y2)
+        res = lag.laggrid2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = lag.laggrid2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3) * 2)
+
+    def test_laggrid3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j,k->ijk', y1, y2, y3)
+        res = lag.laggrid3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = lag.laggrid3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3) * 3)
+
+
+class TestIntegral:
+
+    def test_lagint(self):
+        # check exceptions
+        assert_raises(TypeError, lag.lagint, [0], .5)
+        assert_raises(ValueError, lag.lagint, [0], -1)
+        assert_raises(ValueError, lag.lagint, [0], 1, [0, 0])
+        assert_raises(ValueError, lag.lagint, [0], lbnd=[0])
+        assert_raises(ValueError, lag.lagint, [0], scl=[0])
+        assert_raises(TypeError, lag.lagint, [0], axis=.5)
+
+        # test integration of zero polynomial
+        for i in range(2, 5):
+            k = [0] * (i - 2) + [1]
+            res = lag.lagint([0], m=i, k=k)
+            assert_almost_equal(res, [1, -1])
+
+        # check single integration with integration constant
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [1 / scl]
+            lagpol = lag.poly2lag(pol)
+            lagint = lag.lagint(lagpol, m=1, k=[i])
+            res = lag.lag2poly(lagint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check single integration with integration constant and lbnd
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            lagpol = lag.poly2lag(pol)
+            lagint = lag.lagint(lagpol, m=1, k=[i], lbnd=-1)
+            assert_almost_equal(lag.lagval(-1, lagint), i)
+
+        # check single integration with integration constant and scaling
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [2 / scl]
+            lagpol = lag.poly2lag(pol)
+            lagint = lag.lagint(lagpol, m=1, k=[i], scl=2)
+            res = lag.lag2poly(lagint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with default k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = lag.lagint(tgt, m=1)
+                res = lag.lagint(pol, m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with defined k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = lag.lagint(tgt, m=1, k=[k])
+                res = lag.lagint(pol, m=j, k=list(range(j)))
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with lbnd
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = lag.lagint(tgt, m=1, k=[k], lbnd=-1)
+                res = lag.lagint(pol, m=j, k=list(range(j)), lbnd=-1)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = lag.lagint(tgt, m=1, k=[k], scl=2)
+                res = lag.lagint(pol, m=j, k=list(range(j)), scl=2)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_lagint_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([lag.lagint(c) for c in c2d.T]).T
+        res = lag.lagint(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([lag.lagint(c) for c in c2d])
+        res = lag.lagint(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([lag.lagint(c, k=3) for c in c2d])
+        res = lag.lagint(c2d, k=3, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestDerivative:
+
+    def test_lagder(self):
+        # check exceptions
+        assert_raises(TypeError, lag.lagder, [0], .5)
+        assert_raises(ValueError, lag.lagder, [0], -1)
+
+        # check that zeroth derivative does nothing
+        for i in range(5):
+            tgt = [0] * i + [1]
+            res = lag.lagder(tgt, m=0)
+            assert_equal(trim(res), trim(tgt))
+
+        # check that derivation is the inverse of integration
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = lag.lagder(lag.lagint(tgt, m=j), m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check derivation with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = lag.lagder(lag.lagint(tgt, m=j, scl=2), m=j, scl=.5)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_lagder_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([lag.lagder(c) for c in c2d.T]).T
+        res = lag.lagder(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([lag.lagder(c) for c in c2d])
+        res = lag.lagder(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestVander:
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+
+    def test_lagvander(self):
+        # check for 1d x
+        x = np.arange(3)
+        v = lag.lagvander(x, 3)
+        assert_(v.shape == (3, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], lag.lagval(x, coef))
+
+        # check for 2d x
+        x = np.array([[1, 2], [3, 4], [5, 6]])
+        v = lag.lagvander(x, 3)
+        assert_(v.shape == (3, 2, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], lag.lagval(x, coef))
+
+    def test_lagvander2d(self):
+        # also tests lagval2d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3))
+        van = lag.lagvander2d(x1, x2, [1, 2])
+        tgt = lag.lagval2d(x1, x2, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = lag.lagvander2d([x1], [x2], [1, 2])
+        assert_(van.shape == (1, 5, 6))
+
+    def test_lagvander3d(self):
+        # also tests lagval3d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3, 4))
+        van = lag.lagvander3d(x1, x2, x3, [1, 2, 3])
+        tgt = lag.lagval3d(x1, x2, x3, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = lag.lagvander3d([x1], [x2], [x3], [1, 2, 3])
+        assert_(van.shape == (1, 5, 24))
+
+
+class TestFitting:
+
+    def test_lagfit(self):
+        def f(x):
+            return x * (x - 1) * (x - 2)
+
+        # Test exceptions
+        assert_raises(ValueError, lag.lagfit, [1], [1], -1)
+        assert_raises(TypeError, lag.lagfit, [[1]], [1], 0)
+        assert_raises(TypeError, lag.lagfit, [], [1], 0)
+        assert_raises(TypeError, lag.lagfit, [1], [[[1]]], 0)
+        assert_raises(TypeError, lag.lagfit, [1, 2], [1], 0)
+        assert_raises(TypeError, lag.lagfit, [1], [1, 2], 0)
+        assert_raises(TypeError, lag.lagfit, [1], [1], 0, w=[[1]])
+        assert_raises(TypeError, lag.lagfit, [1], [1], 0, w=[1, 1])
+        assert_raises(ValueError, lag.lagfit, [1], [1], [-1,])
+        assert_raises(ValueError, lag.lagfit, [1], [1], [2, -1, 6])
+        assert_raises(TypeError, lag.lagfit, [1], [1], [])
+
+        # Test fit
+        x = np.linspace(0, 2)
+        y = f(x)
+        #
+        coef3 = lag.lagfit(x, y, 3)
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(lag.lagval(x, coef3), y)
+        coef3 = lag.lagfit(x, y, [0, 1, 2, 3])
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(lag.lagval(x, coef3), y)
+        #
+        coef4 = lag.lagfit(x, y, 4)
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(lag.lagval(x, coef4), y)
+        coef4 = lag.lagfit(x, y, [0, 1, 2, 3, 4])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(lag.lagval(x, coef4), y)
+        #
+        coef2d = lag.lagfit(x, np.array([y, y]).T, 3)
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        coef2d = lag.lagfit(x, np.array([y, y]).T, [0, 1, 2, 3])
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        # test weighting
+        w = np.zeros_like(x)
+        yw = y.copy()
+        w[1::2] = 1
+        y[0::2] = 0
+        wcoef3 = lag.lagfit(x, yw, 3, w=w)
+        assert_almost_equal(wcoef3, coef3)
+        wcoef3 = lag.lagfit(x, yw, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef3, coef3)
+        #
+        wcoef2d = lag.lagfit(x, np.array([yw, yw]).T, 3, w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        wcoef2d = lag.lagfit(x, np.array([yw, yw]).T, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        # test scaling with complex values x points whose square
+        # is zero when summed.
+        x = [1, 1j, -1, -1j]
+        assert_almost_equal(lag.lagfit(x, x, 1), [1, -1])
+        assert_almost_equal(lag.lagfit(x, x, [0, 1]), [1, -1])
+
+
+class TestCompanion:
+
+    def test_raises(self):
+        assert_raises(ValueError, lag.lagcompanion, [])
+        assert_raises(ValueError, lag.lagcompanion, [1])
+
+    def test_dimensions(self):
+        for i in range(1, 5):
+            coef = [0] * i + [1]
+            assert_(lag.lagcompanion(coef).shape == (i, i))
+
+    def test_linear_root(self):
+        assert_(lag.lagcompanion([1, 2])[0, 0] == 1.5)
+
+
+class TestGauss:
+
+    def test_100(self):
+        x, w = lag.laggauss(100)
+
+        # test orthogonality. Note that the results need to be normalized,
+        # otherwise the huge values that can arise from fast growing
+        # functions like Laguerre can be very confusing.
+        v = lag.lagvander(x, 99)
+        vv = np.dot(v.T * w, v)
+        vd = 1 / np.sqrt(vv.diagonal())
+        vv = vd[:, None] * vv * vd
+        assert_almost_equal(vv, np.eye(100))
+
+        # check that the integral of 1 is correct
+        tgt = 1.0
+        assert_almost_equal(w.sum(), tgt)
+
+
+class TestMisc:
+
+    def test_lagfromroots(self):
+        res = lag.lagfromroots([])
+        assert_almost_equal(trim(res), [1])
+        for i in range(1, 5):
+            roots = np.cos(np.linspace(-np.pi, 0, 2 * i + 1)[1::2])
+            pol = lag.lagfromroots(roots)
+            res = lag.lagval(roots, pol)
+            tgt = 0
+            assert_(len(pol) == i + 1)
+            assert_almost_equal(lag.lag2poly(pol)[-1], 1)
+            assert_almost_equal(res, tgt)
+
+    def test_lagroots(self):
+        assert_almost_equal(lag.lagroots([1]), [])
+        assert_almost_equal(lag.lagroots([0, 1]), [1])
+        for i in range(2, 5):
+            tgt = np.linspace(0, 3, i)
+            res = lag.lagroots(lag.lagfromroots(tgt))
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_lagtrim(self):
+        coef = [2, -1, 1, 0]
+
+        # Test exceptions
+        assert_raises(ValueError, lag.lagtrim, coef, -1)
+
+        # Test results
+        assert_equal(lag.lagtrim(coef), coef[:-1])
+        assert_equal(lag.lagtrim(coef, 1), coef[:-3])
+        assert_equal(lag.lagtrim(coef, 2), [0])
+
+    def test_lagline(self):
+        assert_equal(lag.lagline(3, 4), [7, -4])
+
+    def test_lag2poly(self):
+        for i in range(7):
+            assert_almost_equal(lag.lag2poly([0] * i + [1]), Llist[i])
+
+    def test_poly2lag(self):
+        for i in range(7):
+            assert_almost_equal(lag.poly2lag(Llist[i]), [0] * i + [1])
+
+    def test_weight(self):
+        x = np.linspace(0, 10, 11)
+        tgt = np.exp(-x)
+        res = lag.lagweight(x)
+        assert_almost_equal(res, tgt)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_legendre.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_legendre.py
new file mode 100644
index 0000000000000000000000000000000000000000..20b100aada5ca11ddf3041fa170047ca6e8e4e8d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_legendre.py
@@ -0,0 +1,566 @@
+"""Tests for legendre module.
+
+"""
+from functools import reduce
+
+import numpy as np
+import numpy.polynomial.legendre as leg
+from numpy.polynomial.polynomial import polyval
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+L0 = np.array([1])
+L1 = np.array([0, 1])
+L2 = np.array([-1, 0, 3]) / 2
+L3 = np.array([0, -3, 0, 5]) / 2
+L4 = np.array([3, 0, -30, 0, 35]) / 8
+L5 = np.array([0, 15, 0, -70, 0, 63]) / 8
+L6 = np.array([-5, 0, 105, 0, -315, 0, 231]) / 16
+L7 = np.array([0, -35, 0, 315, 0, -693, 0, 429]) / 16
+L8 = np.array([35, 0, -1260, 0, 6930, 0, -12012, 0, 6435]) / 128
+L9 = np.array([0, 315, 0, -4620, 0, 18018, 0, -25740, 0, 12155]) / 128
+
+Llist = [L0, L1, L2, L3, L4, L5, L6, L7, L8, L9]
+
+
+def trim(x):
+    return leg.legtrim(x, tol=1e-6)
+
+
+class TestConstants:
+
+    def test_legdomain(self):
+        assert_equal(leg.legdomain, [-1, 1])
+
+    def test_legzero(self):
+        assert_equal(leg.legzero, [0])
+
+    def test_legone(self):
+        assert_equal(leg.legone, [1])
+
+    def test_legx(self):
+        assert_equal(leg.legx, [0, 1])
+
+
+class TestArithmetic:
+    x = np.linspace(-1, 1, 100)
+
+    def test_legadd(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] += 1
+                res = leg.legadd([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_legsub(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] -= 1
+                res = leg.legsub([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_legmulx(self):
+        assert_equal(leg.legmulx([0]), [0])
+        assert_equal(leg.legmulx([1]), [0, 1])
+        for i in range(1, 5):
+            tmp = 2 * i + 1
+            ser = [0] * i + [1]
+            tgt = [0] * (i - 1) + [i / tmp, 0, (i + 1) / tmp]
+            assert_equal(leg.legmulx(ser), tgt)
+
+    def test_legmul(self):
+        # check values of result
+        for i in range(5):
+            pol1 = [0] * i + [1]
+            val1 = leg.legval(self.x, pol1)
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                pol2 = [0] * j + [1]
+                val2 = leg.legval(self.x, pol2)
+                pol3 = leg.legmul(pol1, pol2)
+                val3 = leg.legval(self.x, pol3)
+                assert_(len(pol3) == i + j + 1, msg)
+                assert_almost_equal(val3, val1 * val2, err_msg=msg)
+
+    def test_legdiv(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                ci = [0] * i + [1]
+                cj = [0] * j + [1]
+                tgt = leg.legadd(ci, cj)
+                quo, rem = leg.legdiv(tgt, ci)
+                res = leg.legadd(leg.legmul(quo, ci), rem)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_legpow(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                c = np.arange(i + 1)
+                tgt = reduce(leg.legmul, [c] * j, np.array([1]))
+                res = leg.legpow(c, j)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+
+class TestEvaluation:
+    # coefficients of 1 + 2*x + 3*x**2
+    c1d = np.array([2., 2., 2.])
+    c2d = np.einsum('i,j->ij', c1d, c1d)
+    c3d = np.einsum('i,j,k->ijk', c1d, c1d, c1d)
+
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+    y = polyval(x, [1., 2., 3.])
+
+    def test_legval(self):
+        # check empty input
+        assert_equal(leg.legval([], [1]).size, 0)
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [polyval(x, c) for c in Llist]
+        for i in range(10):
+            msg = f"At i={i}"
+            tgt = y[i]
+            res = leg.legval(x, [0] * i + [1])
+            assert_almost_equal(res, tgt, err_msg=msg)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(leg.legval(x, [1]).shape, dims)
+            assert_equal(leg.legval(x, [1, 0]).shape, dims)
+            assert_equal(leg.legval(x, [1, 0, 0]).shape, dims)
+
+    def test_legval2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, leg.legval2d, x1, x2[:2], self.c2d)
+
+        # test values
+        tgt = y1 * y2
+        res = leg.legval2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = leg.legval2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3))
+
+    def test_legval3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises(ValueError, leg.legval3d, x1, x2, x3[:2], self.c3d)
+
+        # test values
+        tgt = y1 * y2 * y3
+        res = leg.legval3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = leg.legval3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3))
+
+    def test_leggrid2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j->ij', y1, y2)
+        res = leg.leggrid2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = leg.leggrid2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3) * 2)
+
+    def test_leggrid3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j,k->ijk', y1, y2, y3)
+        res = leg.leggrid3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = leg.leggrid3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3) * 3)
+
+
+class TestIntegral:
+
+    def test_legint(self):
+        # check exceptions
+        assert_raises(TypeError, leg.legint, [0], .5)
+        assert_raises(ValueError, leg.legint, [0], -1)
+        assert_raises(ValueError, leg.legint, [0], 1, [0, 0])
+        assert_raises(ValueError, leg.legint, [0], lbnd=[0])
+        assert_raises(ValueError, leg.legint, [0], scl=[0])
+        assert_raises(TypeError, leg.legint, [0], axis=.5)
+
+        # test integration of zero polynomial
+        for i in range(2, 5):
+            k = [0] * (i - 2) + [1]
+            res = leg.legint([0], m=i, k=k)
+            assert_almost_equal(res, [0, 1])
+
+        # check single integration with integration constant
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [1 / scl]
+            legpol = leg.poly2leg(pol)
+            legint = leg.legint(legpol, m=1, k=[i])
+            res = leg.leg2poly(legint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check single integration with integration constant and lbnd
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            legpol = leg.poly2leg(pol)
+            legint = leg.legint(legpol, m=1, k=[i], lbnd=-1)
+            assert_almost_equal(leg.legval(-1, legint), i)
+
+        # check single integration with integration constant and scaling
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [2 / scl]
+            legpol = leg.poly2leg(pol)
+            legint = leg.legint(legpol, m=1, k=[i], scl=2)
+            res = leg.leg2poly(legint)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with default k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = leg.legint(tgt, m=1)
+                res = leg.legint(pol, m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with defined k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = leg.legint(tgt, m=1, k=[k])
+                res = leg.legint(pol, m=j, k=list(range(j)))
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with lbnd
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = leg.legint(tgt, m=1, k=[k], lbnd=-1)
+                res = leg.legint(pol, m=j, k=list(range(j)), lbnd=-1)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = leg.legint(tgt, m=1, k=[k], scl=2)
+                res = leg.legint(pol, m=j, k=list(range(j)), scl=2)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_legint_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([leg.legint(c) for c in c2d.T]).T
+        res = leg.legint(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([leg.legint(c) for c in c2d])
+        res = leg.legint(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([leg.legint(c, k=3) for c in c2d])
+        res = leg.legint(c2d, k=3, axis=1)
+        assert_almost_equal(res, tgt)
+
+    def test_legint_zerointord(self):
+        assert_equal(leg.legint((1, 2, 3), 0), (1, 2, 3))
+
+
+class TestDerivative:
+
+    def test_legder(self):
+        # check exceptions
+        assert_raises(TypeError, leg.legder, [0], .5)
+        assert_raises(ValueError, leg.legder, [0], -1)
+
+        # check that zeroth derivative does nothing
+        for i in range(5):
+            tgt = [0] * i + [1]
+            res = leg.legder(tgt, m=0)
+            assert_equal(trim(res), trim(tgt))
+
+        # check that derivation is the inverse of integration
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = leg.legder(leg.legint(tgt, m=j), m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check derivation with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = leg.legder(leg.legint(tgt, m=j, scl=2), m=j, scl=.5)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_legder_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([leg.legder(c) for c in c2d.T]).T
+        res = leg.legder(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([leg.legder(c) for c in c2d])
+        res = leg.legder(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+    def test_legder_orderhigherthancoeff(self):
+        c = (1, 2, 3, 4)
+        assert_equal(leg.legder(c, 4), [0])
+
+class TestVander:
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+
+    def test_legvander(self):
+        # check for 1d x
+        x = np.arange(3)
+        v = leg.legvander(x, 3)
+        assert_(v.shape == (3, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], leg.legval(x, coef))
+
+        # check for 2d x
+        x = np.array([[1, 2], [3, 4], [5, 6]])
+        v = leg.legvander(x, 3)
+        assert_(v.shape == (3, 2, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], leg.legval(x, coef))
+
+    def test_legvander2d(self):
+        # also tests polyval2d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3))
+        van = leg.legvander2d(x1, x2, [1, 2])
+        tgt = leg.legval2d(x1, x2, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = leg.legvander2d([x1], [x2], [1, 2])
+        assert_(van.shape == (1, 5, 6))
+
+    def test_legvander3d(self):
+        # also tests polyval3d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3, 4))
+        van = leg.legvander3d(x1, x2, x3, [1, 2, 3])
+        tgt = leg.legval3d(x1, x2, x3, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = leg.legvander3d([x1], [x2], [x3], [1, 2, 3])
+        assert_(van.shape == (1, 5, 24))
+
+    def test_legvander_negdeg(self):
+        assert_raises(ValueError, leg.legvander, (1, 2, 3), -1)
+
+
+class TestFitting:
+
+    def test_legfit(self):
+        def f(x):
+            return x * (x - 1) * (x - 2)
+
+        def f2(x):
+            return x**4 + x**2 + 1
+
+        # Test exceptions
+        assert_raises(ValueError, leg.legfit, [1], [1], -1)
+        assert_raises(TypeError, leg.legfit, [[1]], [1], 0)
+        assert_raises(TypeError, leg.legfit, [], [1], 0)
+        assert_raises(TypeError, leg.legfit, [1], [[[1]]], 0)
+        assert_raises(TypeError, leg.legfit, [1, 2], [1], 0)
+        assert_raises(TypeError, leg.legfit, [1], [1, 2], 0)
+        assert_raises(TypeError, leg.legfit, [1], [1], 0, w=[[1]])
+        assert_raises(TypeError, leg.legfit, [1], [1], 0, w=[1, 1])
+        assert_raises(ValueError, leg.legfit, [1], [1], [-1,])
+        assert_raises(ValueError, leg.legfit, [1], [1], [2, -1, 6])
+        assert_raises(TypeError, leg.legfit, [1], [1], [])
+
+        # Test fit
+        x = np.linspace(0, 2)
+        y = f(x)
+        #
+        coef3 = leg.legfit(x, y, 3)
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(leg.legval(x, coef3), y)
+        coef3 = leg.legfit(x, y, [0, 1, 2, 3])
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(leg.legval(x, coef3), y)
+        #
+        coef4 = leg.legfit(x, y, 4)
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(leg.legval(x, coef4), y)
+        coef4 = leg.legfit(x, y, [0, 1, 2, 3, 4])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(leg.legval(x, coef4), y)
+        # check things still work if deg is not in strict increasing
+        coef4 = leg.legfit(x, y, [2, 3, 4, 1, 0])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(leg.legval(x, coef4), y)
+        #
+        coef2d = leg.legfit(x, np.array([y, y]).T, 3)
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        coef2d = leg.legfit(x, np.array([y, y]).T, [0, 1, 2, 3])
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        # test weighting
+        w = np.zeros_like(x)
+        yw = y.copy()
+        w[1::2] = 1
+        y[0::2] = 0
+        wcoef3 = leg.legfit(x, yw, 3, w=w)
+        assert_almost_equal(wcoef3, coef3)
+        wcoef3 = leg.legfit(x, yw, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef3, coef3)
+        #
+        wcoef2d = leg.legfit(x, np.array([yw, yw]).T, 3, w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        wcoef2d = leg.legfit(x, np.array([yw, yw]).T, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        # test scaling with complex values x points whose square
+        # is zero when summed.
+        x = [1, 1j, -1, -1j]
+        assert_almost_equal(leg.legfit(x, x, 1), [0, 1])
+        assert_almost_equal(leg.legfit(x, x, [0, 1]), [0, 1])
+        # test fitting only even Legendre polynomials
+        x = np.linspace(-1, 1)
+        y = f2(x)
+        coef1 = leg.legfit(x, y, 4)
+        assert_almost_equal(leg.legval(x, coef1), y)
+        coef2 = leg.legfit(x, y, [0, 2, 4])
+        assert_almost_equal(leg.legval(x, coef2), y)
+        assert_almost_equal(coef1, coef2)
+
+
+class TestCompanion:
+
+    def test_raises(self):
+        assert_raises(ValueError, leg.legcompanion, [])
+        assert_raises(ValueError, leg.legcompanion, [1])
+
+    def test_dimensions(self):
+        for i in range(1, 5):
+            coef = [0] * i + [1]
+            assert_(leg.legcompanion(coef).shape == (i, i))
+
+    def test_linear_root(self):
+        assert_(leg.legcompanion([1, 2])[0, 0] == -.5)
+
+
+class TestGauss:
+
+    def test_100(self):
+        x, w = leg.leggauss(100)
+
+        # test orthogonality. Note that the results need to be normalized,
+        # otherwise the huge values that can arise from fast growing
+        # functions like Laguerre can be very confusing.
+        v = leg.legvander(x, 99)
+        vv = np.dot(v.T * w, v)
+        vd = 1 / np.sqrt(vv.diagonal())
+        vv = vd[:, None] * vv * vd
+        assert_almost_equal(vv, np.eye(100))
+
+        # check that the integral of 1 is correct
+        tgt = 2.0
+        assert_almost_equal(w.sum(), tgt)
+
+
+class TestMisc:
+
+    def test_legfromroots(self):
+        res = leg.legfromroots([])
+        assert_almost_equal(trim(res), [1])
+        for i in range(1, 5):
+            roots = np.cos(np.linspace(-np.pi, 0, 2 * i + 1)[1::2])
+            pol = leg.legfromroots(roots)
+            res = leg.legval(roots, pol)
+            tgt = 0
+            assert_(len(pol) == i + 1)
+            assert_almost_equal(leg.leg2poly(pol)[-1], 1)
+            assert_almost_equal(res, tgt)
+
+    def test_legroots(self):
+        assert_almost_equal(leg.legroots([1]), [])
+        assert_almost_equal(leg.legroots([1, 2]), [-.5])
+        for i in range(2, 5):
+            tgt = np.linspace(-1, 1, i)
+            res = leg.legroots(leg.legfromroots(tgt))
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_legtrim(self):
+        coef = [2, -1, 1, 0]
+
+        # Test exceptions
+        assert_raises(ValueError, leg.legtrim, coef, -1)
+
+        # Test results
+        assert_equal(leg.legtrim(coef), coef[:-1])
+        assert_equal(leg.legtrim(coef, 1), coef[:-3])
+        assert_equal(leg.legtrim(coef, 2), [0])
+
+    def test_legline(self):
+        assert_equal(leg.legline(3, 4), [3, 4])
+
+    def test_legline_zeroscl(self):
+        assert_equal(leg.legline(3, 0), [3])
+
+    def test_leg2poly(self):
+        for i in range(10):
+            assert_almost_equal(leg.leg2poly([0] * i + [1]), Llist[i])
+
+    def test_poly2leg(self):
+        for i in range(10):
+            assert_almost_equal(leg.poly2leg(Llist[i]), [0] * i + [1])
+
+    def test_weight(self):
+        x = np.linspace(-1, 1, 11)
+        tgt = 1.
+        res = leg.legweight(x)
+        assert_almost_equal(res, tgt)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_polynomial.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_polynomial.py
new file mode 100644
index 0000000000000000000000000000000000000000..80e8abf4e8f8b1233f4e734d6ea70357b03c4f85
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_polynomial.py
@@ -0,0 +1,691 @@
+"""Tests for polynomial module.
+
+"""
+import pickle
+from copy import deepcopy
+from fractions import Fraction
+from functools import reduce
+
+import pytest
+
+import numpy as np
+import numpy.polynomial.polynomial as poly
+from numpy.testing import (
+    assert_,
+    assert_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+    assert_raises_regex,
+)
+
+
+def trim(x):
+    return poly.polytrim(x, tol=1e-6)
+
+
+T0 = [1]
+T1 = [0, 1]
+T2 = [-1, 0, 2]
+T3 = [0, -3, 0, 4]
+T4 = [1, 0, -8, 0, 8]
+T5 = [0, 5, 0, -20, 0, 16]
+T6 = [-1, 0, 18, 0, -48, 0, 32]
+T7 = [0, -7, 0, 56, 0, -112, 0, 64]
+T8 = [1, 0, -32, 0, 160, 0, -256, 0, 128]
+T9 = [0, 9, 0, -120, 0, 432, 0, -576, 0, 256]
+
+Tlist = [T0, T1, T2, T3, T4, T5, T6, T7, T8, T9]
+
+
+class TestConstants:
+
+    def test_polydomain(self):
+        assert_equal(poly.polydomain, [-1, 1])
+
+    def test_polyzero(self):
+        assert_equal(poly.polyzero, [0])
+
+    def test_polyone(self):
+        assert_equal(poly.polyone, [1])
+
+    def test_polyx(self):
+        assert_equal(poly.polyx, [0, 1])
+
+    def test_copy(self):
+        x = poly.Polynomial([1, 2, 3])
+        y = deepcopy(x)
+        assert_equal(x, y)
+
+    def test_pickle(self):
+        x = poly.Polynomial([1, 2, 3])
+        y = pickle.loads(pickle.dumps(x))
+        assert_equal(x, y)
+
+class TestArithmetic:
+
+    def test_polyadd(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] += 1
+                res = poly.polyadd([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_polysub(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(max(i, j) + 1)
+                tgt[i] += 1
+                tgt[j] -= 1
+                res = poly.polysub([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_polymulx(self):
+        assert_equal(poly.polymulx([0]), [0])
+        assert_equal(poly.polymulx([1]), [0, 1])
+        for i in range(1, 5):
+            ser = [0] * i + [1]
+            tgt = [0] * (i + 1) + [1]
+            assert_equal(poly.polymulx(ser), tgt)
+
+    def test_polymul(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                tgt = np.zeros(i + j + 1)
+                tgt[i + j] += 1
+                res = poly.polymul([0] * i + [1], [0] * j + [1])
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+    def test_polydiv(self):
+        # check zero division
+        assert_raises(ZeroDivisionError, poly.polydiv, [1], [0])
+
+        # check scalar division
+        quo, rem = poly.polydiv([2], [2])
+        assert_equal((quo, rem), (1, 0))
+        quo, rem = poly.polydiv([2, 2], [2])
+        assert_equal((quo, rem), ((1, 1), 0))
+
+        # check rest.
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                ci = [0] * i + [1, 2]
+                cj = [0] * j + [1, 2]
+                tgt = poly.polyadd(ci, cj)
+                quo, rem = poly.polydiv(tgt, ci)
+                res = poly.polyadd(poly.polymul(quo, ci), rem)
+                assert_equal(res, tgt, err_msg=msg)
+
+    def test_polypow(self):
+        for i in range(5):
+            for j in range(5):
+                msg = f"At i={i}, j={j}"
+                c = np.arange(i + 1)
+                tgt = reduce(poly.polymul, [c] * j, np.array([1]))
+                res = poly.polypow(c, j)
+                assert_equal(trim(res), trim(tgt), err_msg=msg)
+
+class TestFraction:
+
+    def test_Fraction(self):
+        # assert we can use Polynomials with coefficients of object dtype
+        f = Fraction(2, 3)
+        one = Fraction(1, 1)
+        zero = Fraction(0, 1)
+        p = poly.Polynomial([f, f], domain=[zero, one], window=[zero, one])
+
+        x = 2 * p + p ** 2
+        assert_equal(x.coef, np.array([Fraction(16, 9), Fraction(20, 9),
+                                       Fraction(4, 9)], dtype=object))
+        assert_equal(p.domain, [zero, one])
+        assert_equal(p.coef.dtype, np.dtypes.ObjectDType())
+        assert_(isinstance(p(f), Fraction))
+        assert_equal(p(f), Fraction(10, 9))
+        p_deriv = poly.Polynomial([Fraction(2, 3)], domain=[zero, one],
+                                  window=[zero, one])
+        assert_equal(p.deriv(), p_deriv)
+
+class TestEvaluation:
+    # coefficients of 1 + 2*x + 3*x**2
+    c1d = np.array([1., 2., 3.])
+    c2d = np.einsum('i,j->ij', c1d, c1d)
+    c3d = np.einsum('i,j,k->ijk', c1d, c1d, c1d)
+
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+    y = poly.polyval(x, [1., 2., 3.])
+
+    def test_polyval(self):
+        # check empty input
+        assert_equal(poly.polyval([], [1]).size, 0)
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [x**i for i in range(5)]
+        for i in range(5):
+            tgt = y[i]
+            res = poly.polyval(x, [0] * i + [1])
+            assert_almost_equal(res, tgt)
+        tgt = x * (x**2 - 1)
+        res = poly.polyval(x, [0, -1, 0, 1])
+        assert_almost_equal(res, tgt)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(poly.polyval(x, [1]).shape, dims)
+            assert_equal(poly.polyval(x, [1, 0]).shape, dims)
+            assert_equal(poly.polyval(x, [1, 0, 0]).shape, dims)
+
+        # check masked arrays are processed correctly
+        mask = [False, True, False]
+        mx = np.ma.array([1, 2, 3], mask=mask)
+        res = np.polyval([7, 5, 3], mx)
+        assert_array_equal(res.mask, mask)
+
+        # check subtypes of ndarray are preserved
+        class C(np.ndarray):
+            pass
+
+        cx = np.array([1, 2, 3]).view(C)
+        assert_equal(type(np.polyval([2, 3, 4], cx)), C)
+
+    def test_polyvalfromroots(self):
+        # check exception for broadcasting x values over root array with
+        # too few dimensions
+        assert_raises(ValueError, poly.polyvalfromroots,
+                      [1], [1], tensor=False)
+
+        # check empty input
+        assert_equal(poly.polyvalfromroots([], [1]).size, 0)
+        assert_(poly.polyvalfromroots([], [1]).shape == (0,))
+
+        # check empty input + multidimensional roots
+        assert_equal(poly.polyvalfromroots([], [[1] * 5]).size, 0)
+        assert_(poly.polyvalfromroots([], [[1] * 5]).shape == (5, 0))
+
+        # check scalar input
+        assert_equal(poly.polyvalfromroots(1, 1), 0)
+        assert_(poly.polyvalfromroots(1, np.ones((3, 3))).shape == (3,))
+
+        # check normal input)
+        x = np.linspace(-1, 1)
+        y = [x**i for i in range(5)]
+        for i in range(1, 5):
+            tgt = y[i]
+            res = poly.polyvalfromroots(x, [0] * i)
+            assert_almost_equal(res, tgt)
+        tgt = x * (x - 1) * (x + 1)
+        res = poly.polyvalfromroots(x, [-1, 0, 1])
+        assert_almost_equal(res, tgt)
+
+        # check that shape is preserved
+        for i in range(3):
+            dims = [2] * i
+            x = np.zeros(dims)
+            assert_equal(poly.polyvalfromroots(x, [1]).shape, dims)
+            assert_equal(poly.polyvalfromroots(x, [1, 0]).shape, dims)
+            assert_equal(poly.polyvalfromroots(x, [1, 0, 0]).shape, dims)
+
+        # check compatibility with factorization
+        ptest = [15, 2, -16, -2, 1]
+        r = poly.polyroots(ptest)
+        x = np.linspace(-1, 1)
+        assert_almost_equal(poly.polyval(x, ptest),
+                            poly.polyvalfromroots(x, r))
+
+        # check multidimensional arrays of roots and values
+        # check tensor=False
+        rshape = (3, 5)
+        x = np.arange(-3, 2)
+        r = np.random.randint(-5, 5, size=rshape)
+        res = poly.polyvalfromroots(x, r, tensor=False)
+        tgt = np.empty(r.shape[1:])
+        for ii in range(tgt.size):
+            tgt[ii] = poly.polyvalfromroots(x[ii], r[:, ii])
+        assert_equal(res, tgt)
+
+        # check tensor=True
+        x = np.vstack([x, 2 * x])
+        res = poly.polyvalfromroots(x, r, tensor=True)
+        tgt = np.empty(r.shape[1:] + x.shape)
+        for ii in range(r.shape[1]):
+            for jj in range(x.shape[0]):
+                tgt[ii, jj, :] = poly.polyvalfromroots(x[jj], r[:, ii])
+        assert_equal(res, tgt)
+
+    def test_polyval2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises_regex(ValueError, 'incompatible',
+                            poly.polyval2d, x1, x2[:2], self.c2d)
+
+        # test values
+        tgt = y1 * y2
+        res = poly.polyval2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = poly.polyval2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3))
+
+    def test_polyval3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test exceptions
+        assert_raises_regex(ValueError, 'incompatible',
+                      poly.polyval3d, x1, x2, x3[:2], self.c3d)
+
+        # test values
+        tgt = y1 * y2 * y3
+        res = poly.polyval3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = poly.polyval3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3))
+
+    def test_polygrid2d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j->ij', y1, y2)
+        res = poly.polygrid2d(x1, x2, self.c2d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = poly.polygrid2d(z, z, self.c2d)
+        assert_(res.shape == (2, 3) * 2)
+
+    def test_polygrid3d(self):
+        x1, x2, x3 = self.x
+        y1, y2, y3 = self.y
+
+        # test values
+        tgt = np.einsum('i,j,k->ijk', y1, y2, y3)
+        res = poly.polygrid3d(x1, x2, x3, self.c3d)
+        assert_almost_equal(res, tgt)
+
+        # test shape
+        z = np.ones((2, 3))
+        res = poly.polygrid3d(z, z, z, self.c3d)
+        assert_(res.shape == (2, 3) * 3)
+
+
+class TestIntegral:
+
+    def test_polyint(self):
+        # check exceptions
+        assert_raises(TypeError, poly.polyint, [0], .5)
+        assert_raises(ValueError, poly.polyint, [0], -1)
+        assert_raises(ValueError, poly.polyint, [0], 1, [0, 0])
+        assert_raises(ValueError, poly.polyint, [0], lbnd=[0])
+        assert_raises(ValueError, poly.polyint, [0], scl=[0])
+        assert_raises(TypeError, poly.polyint, [0], axis=.5)
+        assert_raises(TypeError, poly.polyint, [1, 1], 1.)
+
+        # test integration of zero polynomial
+        for i in range(2, 5):
+            k = [0] * (i - 2) + [1]
+            res = poly.polyint([0], m=i, k=k)
+            assert_almost_equal(res, [0, 1])
+
+        # check single integration with integration constant
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [1 / scl]
+            res = poly.polyint(pol, m=1, k=[i])
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check single integration with integration constant and lbnd
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            res = poly.polyint(pol, m=1, k=[i], lbnd=-1)
+            assert_almost_equal(poly.polyval(-1, res), i)
+
+        # check single integration with integration constant and scaling
+        for i in range(5):
+            scl = i + 1
+            pol = [0] * i + [1]
+            tgt = [i] + [0] * i + [2 / scl]
+            res = poly.polyint(pol, m=1, k=[i], scl=2)
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with default k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = poly.polyint(tgt, m=1)
+                res = poly.polyint(pol, m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with defined k
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = poly.polyint(tgt, m=1, k=[k])
+                res = poly.polyint(pol, m=j, k=list(range(j)))
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with lbnd
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = poly.polyint(tgt, m=1, k=[k], lbnd=-1)
+                res = poly.polyint(pol, m=j, k=list(range(j)), lbnd=-1)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check multiple integrations with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                pol = [0] * i + [1]
+                tgt = pol[:]
+                for k in range(j):
+                    tgt = poly.polyint(tgt, m=1, k=[k], scl=2)
+                res = poly.polyint(pol, m=j, k=list(range(j)), scl=2)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_polyint_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([poly.polyint(c) for c in c2d.T]).T
+        res = poly.polyint(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([poly.polyint(c) for c in c2d])
+        res = poly.polyint(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([poly.polyint(c, k=3) for c in c2d])
+        res = poly.polyint(c2d, k=3, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestDerivative:
+
+    def test_polyder(self):
+        # check exceptions
+        assert_raises(TypeError, poly.polyder, [0], .5)
+        assert_raises(ValueError, poly.polyder, [0], -1)
+
+        # check that zeroth derivative does nothing
+        for i in range(5):
+            tgt = [0] * i + [1]
+            res = poly.polyder(tgt, m=0)
+            assert_equal(trim(res), trim(tgt))
+
+        # check that derivation is the inverse of integration
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = poly.polyder(poly.polyint(tgt, m=j), m=j)
+                assert_almost_equal(trim(res), trim(tgt))
+
+        # check derivation with scaling
+        for i in range(5):
+            for j in range(2, 5):
+                tgt = [0] * i + [1]
+                res = poly.polyder(poly.polyint(tgt, m=j, scl=2), m=j, scl=.5)
+                assert_almost_equal(trim(res), trim(tgt))
+
+    def test_polyder_axis(self):
+        # check that axis keyword works
+        c2d = np.random.random((3, 4))
+
+        tgt = np.vstack([poly.polyder(c) for c in c2d.T]).T
+        res = poly.polyder(c2d, axis=0)
+        assert_almost_equal(res, tgt)
+
+        tgt = np.vstack([poly.polyder(c) for c in c2d])
+        res = poly.polyder(c2d, axis=1)
+        assert_almost_equal(res, tgt)
+
+
+class TestVander:
+    # some random values in [-1, 1)
+    x = np.random.random((3, 5)) * 2 - 1
+
+    def test_polyvander(self):
+        # check for 1d x
+        x = np.arange(3)
+        v = poly.polyvander(x, 3)
+        assert_(v.shape == (3, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], poly.polyval(x, coef))
+
+        # check for 2d x
+        x = np.array([[1, 2], [3, 4], [5, 6]])
+        v = poly.polyvander(x, 3)
+        assert_(v.shape == (3, 2, 4))
+        for i in range(4):
+            coef = [0] * i + [1]
+            assert_almost_equal(v[..., i], poly.polyval(x, coef))
+
+    def test_polyvander2d(self):
+        # also tests polyval2d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3))
+        van = poly.polyvander2d(x1, x2, [1, 2])
+        tgt = poly.polyval2d(x1, x2, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = poly.polyvander2d([x1], [x2], [1, 2])
+        assert_(van.shape == (1, 5, 6))
+
+    def test_polyvander3d(self):
+        # also tests polyval3d for non-square coefficient array
+        x1, x2, x3 = self.x
+        c = np.random.random((2, 3, 4))
+        van = poly.polyvander3d(x1, x2, x3, [1, 2, 3])
+        tgt = poly.polyval3d(x1, x2, x3, c)
+        res = np.dot(van, c.flat)
+        assert_almost_equal(res, tgt)
+
+        # check shape
+        van = poly.polyvander3d([x1], [x2], [x3], [1, 2, 3])
+        assert_(van.shape == (1, 5, 24))
+
+    def test_polyvandernegdeg(self):
+        x = np.arange(3)
+        assert_raises(ValueError, poly.polyvander, x, -1)
+
+
+class TestCompanion:
+
+    def test_raises(self):
+        assert_raises(ValueError, poly.polycompanion, [])
+        assert_raises(ValueError, poly.polycompanion, [1])
+
+    def test_dimensions(self):
+        for i in range(1, 5):
+            coef = [0] * i + [1]
+            assert_(poly.polycompanion(coef).shape == (i, i))
+
+    def test_linear_root(self):
+        assert_(poly.polycompanion([1, 2])[0, 0] == -.5)
+
+
+class TestMisc:
+
+    def test_polyfromroots(self):
+        res = poly.polyfromroots([])
+        assert_almost_equal(trim(res), [1])
+        for i in range(1, 5):
+            roots = np.cos(np.linspace(-np.pi, 0, 2 * i + 1)[1::2])
+            tgt = Tlist[i]
+            res = poly.polyfromroots(roots) * 2**(i - 1)
+            assert_almost_equal(trim(res), trim(tgt))
+
+    def test_polyroots(self):
+        assert_almost_equal(poly.polyroots([1]), [])
+        assert_almost_equal(poly.polyroots([1, 2]), [-.5])
+        for i in range(2, 5):
+            tgt = np.linspace(-1, 1, i)
+            res = poly.polyroots(poly.polyfromroots(tgt))
+            assert_almost_equal(trim(res), trim(tgt))
+
+        # Testing for larger root values
+        for i in np.logspace(10, 25, num=1000, base=10):
+            tgt = np.array([-1, 1, i])
+            res = poly.polyroots(poly.polyfromroots(tgt))
+            # Adapting the expected precision according to the root value,
+            # to take into account numerical calculation error.
+            assert_almost_equal(res, tgt, 15 - int(np.log10(i)))
+        for i in np.logspace(10, 25, num=1000, base=10):
+            tgt = np.array([-1, 1.01, i])
+            res = poly.polyroots(poly.polyfromroots(tgt))
+            # Adapting the expected precision according to the root value,
+            # to take into account numerical calculation error.
+            assert_almost_equal(res, tgt, 14 - int(np.log10(i)))
+
+    def test_polyfit(self):
+        def f(x):
+            return x * (x - 1) * (x - 2)
+
+        def f2(x):
+            return x**4 + x**2 + 1
+
+        # Test exceptions
+        assert_raises(ValueError, poly.polyfit, [1], [1], -1)
+        assert_raises(TypeError, poly.polyfit, [[1]], [1], 0)
+        assert_raises(TypeError, poly.polyfit, [], [1], 0)
+        assert_raises(TypeError, poly.polyfit, [1], [[[1]]], 0)
+        assert_raises(TypeError, poly.polyfit, [1, 2], [1], 0)
+        assert_raises(TypeError, poly.polyfit, [1], [1, 2], 0)
+        assert_raises(TypeError, poly.polyfit, [1], [1], 0, w=[[1]])
+        assert_raises(TypeError, poly.polyfit, [1], [1], 0, w=[1, 1])
+        assert_raises(ValueError, poly.polyfit, [1], [1], [-1,])
+        assert_raises(ValueError, poly.polyfit, [1], [1], [2, -1, 6])
+        assert_raises(TypeError, poly.polyfit, [1], [1], [])
+
+        # Test fit
+        x = np.linspace(0, 2)
+        y = f(x)
+        #
+        coef3 = poly.polyfit(x, y, 3)
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(poly.polyval(x, coef3), y)
+        coef3 = poly.polyfit(x, y, [0, 1, 2, 3])
+        assert_equal(len(coef3), 4)
+        assert_almost_equal(poly.polyval(x, coef3), y)
+        #
+        coef4 = poly.polyfit(x, y, 4)
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(poly.polyval(x, coef4), y)
+        coef4 = poly.polyfit(x, y, [0, 1, 2, 3, 4])
+        assert_equal(len(coef4), 5)
+        assert_almost_equal(poly.polyval(x, coef4), y)
+        #
+        coef2d = poly.polyfit(x, np.array([y, y]).T, 3)
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        coef2d = poly.polyfit(x, np.array([y, y]).T, [0, 1, 2, 3])
+        assert_almost_equal(coef2d, np.array([coef3, coef3]).T)
+        # test weighting
+        w = np.zeros_like(x)
+        yw = y.copy()
+        w[1::2] = 1
+        yw[0::2] = 0
+        wcoef3 = poly.polyfit(x, yw, 3, w=w)
+        assert_almost_equal(wcoef3, coef3)
+        wcoef3 = poly.polyfit(x, yw, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef3, coef3)
+        #
+        wcoef2d = poly.polyfit(x, np.array([yw, yw]).T, 3, w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        wcoef2d = poly.polyfit(x, np.array([yw, yw]).T, [0, 1, 2, 3], w=w)
+        assert_almost_equal(wcoef2d, np.array([coef3, coef3]).T)
+        # test scaling with complex values x points whose square
+        # is zero when summed.
+        x = [1, 1j, -1, -1j]
+        assert_almost_equal(poly.polyfit(x, x, 1), [0, 1])
+        assert_almost_equal(poly.polyfit(x, x, [0, 1]), [0, 1])
+        # test fitting only even Polyendre polynomials
+        x = np.linspace(-1, 1)
+        y = f2(x)
+        coef1 = poly.polyfit(x, y, 4)
+        assert_almost_equal(poly.polyval(x, coef1), y)
+        coef2 = poly.polyfit(x, y, [0, 2, 4])
+        assert_almost_equal(poly.polyval(x, coef2), y)
+        assert_almost_equal(coef1, coef2)
+
+    def test_polytrim(self):
+        coef = [2, -1, 1, 0]
+
+        # Test exceptions
+        assert_raises(ValueError, poly.polytrim, coef, -1)
+
+        # Test results
+        assert_equal(poly.polytrim(coef), coef[:-1])
+        assert_equal(poly.polytrim(coef, 1), coef[:-3])
+        assert_equal(poly.polytrim(coef, 2), [0])
+
+    def test_polyline(self):
+        assert_equal(poly.polyline(3, 4), [3, 4])
+
+    def test_polyline_zero(self):
+        assert_equal(poly.polyline(3, 0), [3])
+
+    def test_fit_degenerate_domain(self):
+        p = poly.Polynomial.fit([1], [2], deg=0)
+        assert_equal(p.coef, [2.])
+        p = poly.Polynomial.fit([1, 1], [2, 2.1], deg=0)
+        assert_almost_equal(p.coef, [2.05])
+        with pytest.warns(np.exceptions.RankWarning):
+            p = poly.Polynomial.fit([1, 1], [2, 2.1], deg=1)
+
+    def test_result_type(self):
+        w = np.array([-1, 1], dtype=np.float32)
+        p = np.polynomial.Polynomial(w, domain=w, window=w)
+        v = p(2)
+        assert_equal(v.dtype, np.float32)
+
+        arr = np.polydiv(1, np.float32(1))
+        assert_equal(arr[0].dtype, np.float64)
+
+class ArrayFunctionInterceptor:
+    def __init__(self):
+        self.called = False
+
+    def __array_function__(self, func, types, args, kwargs):
+        self.called = True
+        return "intercepted"
+
+def test_polyval2d_array_function_hook():
+    x = ArrayFunctionInterceptor()
+    y = ArrayFunctionInterceptor()
+    c = ArrayFunctionInterceptor()
+    result = np.polynomial.polynomial.polyval2d(x, y, c)
+    assert result == "intercepted"
+
+def test_polygrid2d_array_function_hook():
+    x = ArrayFunctionInterceptor()
+    y = ArrayFunctionInterceptor()
+    c = ArrayFunctionInterceptor()
+    result = np.polynomial.polynomial.polygrid2d(x, y, c)
+    assert result == "intercepted"
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_polyutils.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_polyutils.py
new file mode 100644
index 0000000000000000000000000000000000000000..34f0c423bf8d96ddcf5502cffaa7617dab06fca3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_polyutils.py
@@ -0,0 +1,123 @@
+"""Tests for polyutils module.
+
+"""
+import numpy as np
+import numpy.polynomial.polyutils as pu
+from numpy.testing import assert_, assert_almost_equal, assert_equal, assert_raises
+
+
+class TestMisc:
+
+    def test_trimseq(self):
+        tgt = [1]
+        for num_trailing_zeros in range(5):
+            res = pu.trimseq([1] + [0] * num_trailing_zeros)
+            assert_equal(res, tgt)
+
+    def test_trimseq_empty_input(self):
+        for empty_seq in [[], np.array([], dtype=np.int32)]:
+            assert_equal(pu.trimseq(empty_seq), empty_seq)
+
+    def test_as_series(self):
+        # check exceptions
+        assert_raises(ValueError, pu.as_series, [[]])
+        assert_raises(ValueError, pu.as_series, [[[1, 2]]])
+        assert_raises(ValueError, pu.as_series, [[1], ['a']])
+        # check common types
+        types = ['i', 'd', 'O']
+        for i in range(len(types)):
+            for j in range(i):
+                ci = np.ones(1, types[i])
+                cj = np.ones(1, types[j])
+                [resi, resj] = pu.as_series([ci, cj])
+                assert_(resi.dtype.char == resj.dtype.char)
+                assert_(resj.dtype.char == types[i])
+
+    def test_trimcoef(self):
+        coef = [2, -1, 1, 0]
+        # Test exceptions
+        assert_raises(ValueError, pu.trimcoef, coef, -1)
+        # Test results
+        assert_equal(pu.trimcoef(coef), coef[:-1])
+        assert_equal(pu.trimcoef(coef, 1), coef[:-3])
+        assert_equal(pu.trimcoef(coef, 2), [0])
+
+    def test_vander_nd_exception(self):
+        # n_dims != len(points)
+        assert_raises(ValueError, pu._vander_nd, (), (1, 2, 3), [90])
+        # n_dims != len(degrees)
+        assert_raises(ValueError, pu._vander_nd, (), (), [90.65])
+        # n_dims == 0
+        assert_raises(ValueError, pu._vander_nd, (), (), [])
+
+    def test_div_zerodiv(self):
+        # c2[-1] == 0
+        assert_raises(ZeroDivisionError, pu._div, pu._div, (1, 2, 3), [0])
+
+    def test_pow_too_large(self):
+        # power > maxpower
+        assert_raises(ValueError, pu._pow, (), [1, 2, 3], 5, 4)
+
+class TestDomain:
+
+    def test_getdomain(self):
+        # test for real values
+        x = [1, 10, 3, -1]
+        tgt = [-1, 10]
+        res = pu.getdomain(x)
+        assert_almost_equal(res, tgt)
+
+        # test for complex values
+        x = [1 + 1j, 1 - 1j, 0, 2]
+        tgt = [-1j, 2 + 1j]
+        res = pu.getdomain(x)
+        assert_almost_equal(res, tgt)
+
+    def test_mapdomain(self):
+        # test for real values
+        dom1 = [0, 4]
+        dom2 = [1, 3]
+        tgt = dom2
+        res = pu.mapdomain(dom1, dom1, dom2)
+        assert_almost_equal(res, tgt)
+
+        # test for complex values
+        dom1 = [0 - 1j, 2 + 1j]
+        dom2 = [-2, 2]
+        tgt = dom2
+        x = dom1
+        res = pu.mapdomain(x, dom1, dom2)
+        assert_almost_equal(res, tgt)
+
+        # test for multidimensional arrays
+        dom1 = [0, 4]
+        dom2 = [1, 3]
+        tgt = np.array([dom2, dom2])
+        x = np.array([dom1, dom1])
+        res = pu.mapdomain(x, dom1, dom2)
+        assert_almost_equal(res, tgt)
+
+        # test that subtypes are preserved.
+        class MyNDArray(np.ndarray):
+            pass
+
+        dom1 = [0, 4]
+        dom2 = [1, 3]
+        x = np.array([dom1, dom1]).view(MyNDArray)
+        res = pu.mapdomain(x, dom1, dom2)
+        assert_(isinstance(res, MyNDArray))
+
+    def test_mapparms(self):
+        # test for real values
+        dom1 = [0, 4]
+        dom2 = [1, 3]
+        tgt = [1, .5]
+        res = pu. mapparms(dom1, dom2)
+        assert_almost_equal(res, tgt)
+
+        # test for complex values
+        dom1 = [0 - 1j, 2 + 1j]
+        dom2 = [-2, 2]
+        tgt = [-1 + 1j, 1 - 1j]
+        res = pu.mapparms(dom1, dom2)
+        assert_almost_equal(res, tgt)
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_printing.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_printing.py
new file mode 100644
index 0000000000000000000000000000000000000000..43c3a123afd6b8f96b25750ea92975f5c4691aa8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_printing.py
@@ -0,0 +1,557 @@
+from decimal import Decimal
+
+# For testing polynomial printing with object arrays
+from fractions import Fraction
+from math import inf, nan
+
+import pytest
+
+import numpy.polynomial as poly
+from numpy._core import arange, array, printoptions
+from numpy.testing import assert_, assert_equal
+
+
+class TestStrUnicodeSuperSubscripts:
+
+    @pytest.fixture(scope='class', autouse=True)
+    def use_unicode(self):
+        poly.set_default_printstyle('unicode')
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0·x + 3.0·x²"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0·x + 3.0·x² - 1.0·x³"),
+        (arange(12), ("0.0 + 1.0·x + 2.0·x² + 3.0·x³ + 4.0·x⁴ + 5.0·x⁵ + "
+                      "6.0·x⁶ + 7.0·x⁷ +\n8.0·x⁸ + 9.0·x⁹ + 10.0·x¹⁰ + "
+                      "11.0·x¹¹")),
+    ))
+    def test_polynomial_str(self, inp, tgt):
+        p = poly.Polynomial(inp)
+        res = str(p)
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0·T₁(x) + 3.0·T₂(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0·T₁(x) + 3.0·T₂(x) - 1.0·T₃(x)"),
+        (arange(12), ("0.0 + 1.0·T₁(x) + 2.0·T₂(x) + 3.0·T₃(x) + 4.0·T₄(x) + "
+                      "5.0·T₅(x) +\n6.0·T₆(x) + 7.0·T₇(x) + 8.0·T₈(x) + "
+                      "9.0·T₉(x) + 10.0·T₁₀(x) + 11.0·T₁₁(x)")),
+    ))
+    def test_chebyshev_str(self, inp, tgt):
+        res = str(poly.Chebyshev(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0·P₁(x) + 3.0·P₂(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0·P₁(x) + 3.0·P₂(x) - 1.0·P₃(x)"),
+        (arange(12), ("0.0 + 1.0·P₁(x) + 2.0·P₂(x) + 3.0·P₃(x) + 4.0·P₄(x) + "
+                      "5.0·P₅(x) +\n6.0·P₆(x) + 7.0·P₇(x) + 8.0·P₈(x) + "
+                      "9.0·P₉(x) + 10.0·P₁₀(x) + 11.0·P₁₁(x)")),
+    ))
+    def test_legendre_str(self, inp, tgt):
+        res = str(poly.Legendre(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0·H₁(x) + 3.0·H₂(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0·H₁(x) + 3.0·H₂(x) - 1.0·H₃(x)"),
+        (arange(12), ("0.0 + 1.0·H₁(x) + 2.0·H₂(x) + 3.0·H₃(x) + 4.0·H₄(x) + "
+                      "5.0·H₅(x) +\n6.0·H₆(x) + 7.0·H₇(x) + 8.0·H₈(x) + "
+                      "9.0·H₉(x) + 10.0·H₁₀(x) + 11.0·H₁₁(x)")),
+    ))
+    def test_hermite_str(self, inp, tgt):
+        res = str(poly.Hermite(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0·He₁(x) + 3.0·He₂(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0·He₁(x) + 3.0·He₂(x) - 1.0·He₃(x)"),
+        (arange(12), ("0.0 + 1.0·He₁(x) + 2.0·He₂(x) + 3.0·He₃(x) + "
+                      "4.0·He₄(x) + 5.0·He₅(x) +\n6.0·He₆(x) + 7.0·He₇(x) + "
+                      "8.0·He₈(x) + 9.0·He₉(x) + 10.0·He₁₀(x) +\n"
+                      "11.0·He₁₁(x)")),
+    ))
+    def test_hermiteE_str(self, inp, tgt):
+        res = str(poly.HermiteE(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0·L₁(x) + 3.0·L₂(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0·L₁(x) + 3.0·L₂(x) - 1.0·L₃(x)"),
+        (arange(12), ("0.0 + 1.0·L₁(x) + 2.0·L₂(x) + 3.0·L₃(x) + 4.0·L₄(x) + "
+                      "5.0·L₅(x) +\n6.0·L₆(x) + 7.0·L₇(x) + 8.0·L₈(x) + "
+                      "9.0·L₉(x) + 10.0·L₁₀(x) + 11.0·L₁₁(x)")),
+    ))
+    def test_laguerre_str(self, inp, tgt):
+        res = str(poly.Laguerre(inp))
+        assert_equal(res, tgt)
+
+    def test_polynomial_str_domains(self):
+        res = str(poly.Polynomial([0, 1]))
+        tgt = '0.0 + 1.0·x'
+        assert_equal(res, tgt)
+
+        res = str(poly.Polynomial([0, 1], domain=[1, 2]))
+        tgt = '0.0 + 1.0·(-3.0 + 2.0x)'
+        assert_equal(res, tgt)
+
+class TestStrAscii:
+
+    @pytest.fixture(scope='class', autouse=True)
+    def use_ascii(self):
+        poly.set_default_printstyle('ascii')
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0 x + 3.0 x**2"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0 x + 3.0 x**2 - 1.0 x**3"),
+        (arange(12), ("0.0 + 1.0 x + 2.0 x**2 + 3.0 x**3 + 4.0 x**4 + "
+                      "5.0 x**5 + 6.0 x**6 +\n7.0 x**7 + 8.0 x**8 + "
+                      "9.0 x**9 + 10.0 x**10 + 11.0 x**11")),
+    ))
+    def test_polynomial_str(self, inp, tgt):
+        res = str(poly.Polynomial(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0 T_1(x) + 3.0 T_2(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0 T_1(x) + 3.0 T_2(x) - 1.0 T_3(x)"),
+        (arange(12), ("0.0 + 1.0 T_1(x) + 2.0 T_2(x) + 3.0 T_3(x) + "
+                      "4.0 T_4(x) + 5.0 T_5(x) +\n6.0 T_6(x) + 7.0 T_7(x) + "
+                      "8.0 T_8(x) + 9.0 T_9(x) + 10.0 T_10(x) +\n"
+                      "11.0 T_11(x)")),
+    ))
+    def test_chebyshev_str(self, inp, tgt):
+        res = str(poly.Chebyshev(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0 P_1(x) + 3.0 P_2(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0 P_1(x) + 3.0 P_2(x) - 1.0 P_3(x)"),
+        (arange(12), ("0.0 + 1.0 P_1(x) + 2.0 P_2(x) + 3.0 P_3(x) + "
+                      "4.0 P_4(x) + 5.0 P_5(x) +\n6.0 P_6(x) + 7.0 P_7(x) + "
+                      "8.0 P_8(x) + 9.0 P_9(x) + 10.0 P_10(x) +\n"
+                      "11.0 P_11(x)")),
+    ))
+    def test_legendre_str(self, inp, tgt):
+        res = str(poly.Legendre(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0 H_1(x) + 3.0 H_2(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0 H_1(x) + 3.0 H_2(x) - 1.0 H_3(x)"),
+        (arange(12), ("0.0 + 1.0 H_1(x) + 2.0 H_2(x) + 3.0 H_3(x) + "
+                      "4.0 H_4(x) + 5.0 H_5(x) +\n6.0 H_6(x) + 7.0 H_7(x) + "
+                      "8.0 H_8(x) + 9.0 H_9(x) + 10.0 H_10(x) +\n"
+                      "11.0 H_11(x)")),
+    ))
+    def test_hermite_str(self, inp, tgt):
+        res = str(poly.Hermite(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0 He_1(x) + 3.0 He_2(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0 He_1(x) + 3.0 He_2(x) - 1.0 He_3(x)"),
+        (arange(12), ("0.0 + 1.0 He_1(x) + 2.0 He_2(x) + 3.0 He_3(x) + "
+                      "4.0 He_4(x) +\n5.0 He_5(x) + 6.0 He_6(x) + "
+                      "7.0 He_7(x) + 8.0 He_8(x) + 9.0 He_9(x) +\n"
+                      "10.0 He_10(x) + 11.0 He_11(x)")),
+    ))
+    def test_hermiteE_str(self, inp, tgt):
+        res = str(poly.HermiteE(inp))
+        assert_equal(res, tgt)
+
+    @pytest.mark.parametrize(('inp', 'tgt'), (
+        ([1, 2, 3], "1.0 + 2.0 L_1(x) + 3.0 L_2(x)"),
+        ([-1, 0, 3, -1], "-1.0 + 0.0 L_1(x) + 3.0 L_2(x) - 1.0 L_3(x)"),
+        (arange(12), ("0.0 + 1.0 L_1(x) + 2.0 L_2(x) + 3.0 L_3(x) + "
+                      "4.0 L_4(x) + 5.0 L_5(x) +\n6.0 L_6(x) + 7.0 L_7(x) + "
+                      "8.0 L_8(x) + 9.0 L_9(x) + 10.0 L_10(x) +\n"
+                      "11.0 L_11(x)")),
+    ))
+    def test_laguerre_str(self, inp, tgt):
+        res = str(poly.Laguerre(inp))
+        assert_equal(res, tgt)
+
+    def test_polynomial_str_domains(self):
+        res = str(poly.Polynomial([0, 1]))
+        tgt = '0.0 + 1.0 x'
+        assert_equal(res, tgt)
+
+        res = str(poly.Polynomial([0, 1], domain=[1, 2]))
+        tgt = '0.0 + 1.0 (-3.0 + 2.0x)'
+        assert_equal(res, tgt)
+
+class TestLinebreaking:
+
+    @pytest.fixture(scope='class', autouse=True)
+    def use_ascii(self):
+        poly.set_default_printstyle('ascii')
+
+    def test_single_line_one_less(self):
+        # With 'ascii' style, len(str(p)) is default linewidth - 1 (i.e. 74)
+        p = poly.Polynomial([12345678, 12345678, 12345678, 12345678, 123])
+        assert_equal(len(str(p)), 74)
+        assert_equal(str(p), (
+            '12345678.0 + 12345678.0 x + 12345678.0 x**2 + '
+            '12345678.0 x**3 + 123.0 x**4'
+        ))
+
+    def test_num_chars_is_linewidth(self):
+        # len(str(p)) == default linewidth == 75
+        p = poly.Polynomial([12345678, 12345678, 12345678, 12345678, 1234])
+        assert_equal(len(str(p)), 75)
+        assert_equal(str(p), (
+            '12345678.0 + 12345678.0 x + 12345678.0 x**2 + '
+            '12345678.0 x**3 +\n1234.0 x**4'
+        ))
+
+    def test_first_linebreak_multiline_one_less_than_linewidth(self):
+        # Multiline str where len(first_line) + len(next_term) == lw - 1 == 74
+        p = poly.Polynomial(
+                [12345678, 12345678, 12345678, 12345678, 1, 12345678]
+            )
+        assert_equal(len(str(p).split('\n')[0]), 74)
+        assert_equal(str(p), (
+            '12345678.0 + 12345678.0 x + 12345678.0 x**2 + '
+            '12345678.0 x**3 + 1.0 x**4 +\n12345678.0 x**5'
+        ))
+
+    def test_first_linebreak_multiline_on_linewidth(self):
+        # First line is one character longer than previous test
+        p = poly.Polynomial(
+                [12345678, 12345678, 12345678, 12345678.12, 1, 12345678]
+            )
+        assert_equal(str(p), (
+            '12345678.0 + 12345678.0 x + 12345678.0 x**2 + '
+            '12345678.12 x**3 +\n1.0 x**4 + 12345678.0 x**5'
+        ))
+
+    @pytest.mark.parametrize(('lw', 'tgt'), (
+        (75, ('0.0 + 10.0 x + 200.0 x**2 + 3000.0 x**3 + 40000.0 x**4 + '
+              '500000.0 x**5 +\n600000.0 x**6 + 70000.0 x**7 + 8000.0 x**8 + '
+              '900.0 x**9')),
+        (45, ('0.0 + 10.0 x + 200.0 x**2 + 3000.0 x**3 +\n40000.0 x**4 + '
+              '500000.0 x**5 +\n600000.0 x**6 + 70000.0 x**7 + 8000.0 x**8 +\n'
+              '900.0 x**9')),
+        (132, ('0.0 + 10.0 x + 200.0 x**2 + 3000.0 x**3 + 40000.0 x**4 + '
+               '500000.0 x**5 + 600000.0 x**6 + 70000.0 x**7 + 8000.0 x**8 + '
+               '900.0 x**9')),
+    ))
+    def test_linewidth_printoption(self, lw, tgt):
+        p = poly.Polynomial(
+            [0, 10, 200, 3000, 40000, 500000, 600000, 70000, 8000, 900]
+        )
+        with printoptions(linewidth=lw):
+            assert_equal(str(p), tgt)
+            for line in str(p).split('\n'):
+                assert_(len(line) < lw)
+
+
+@pytest.mark.thread_unsafe(reason="set_default_printstyle() is global state")
+def test_set_default_printoptions():
+    p = poly.Polynomial([1, 2, 3])
+    c = poly.Chebyshev([1, 2, 3])
+    poly.set_default_printstyle('ascii')
+    assert_equal(str(p), "1.0 + 2.0 x + 3.0 x**2")
+    assert_equal(str(c), "1.0 + 2.0 T_1(x) + 3.0 T_2(x)")
+    poly.set_default_printstyle('unicode')
+    assert_equal(str(p), "1.0 + 2.0·x + 3.0·x²")
+    assert_equal(str(c), "1.0 + 2.0·T₁(x) + 3.0·T₂(x)")
+    with pytest.raises(ValueError):
+        poly.set_default_printstyle('invalid_input')
+
+
+@pytest.mark.thread_unsafe(reason="set_default_printstyle() is global state")
+def test_complex_coefficients():
+    """Test both numpy and built-in complex."""
+    coefs = [0 + 1j, 1 + 1j, -2 + 2j, 3 + 0j]
+    # numpy complex
+    p1 = poly.Polynomial(coefs)
+    # Python complex
+    p2 = poly.Polynomial(array(coefs, dtype=object))
+    poly.set_default_printstyle('unicode')
+    assert_equal(str(p1), "1j + (1+1j)·x - (2-2j)·x² + (3+0j)·x³")
+    assert_equal(str(p2), "1j + (1+1j)·x + (-2+2j)·x² + (3+0j)·x³")
+    poly.set_default_printstyle('ascii')
+    assert_equal(str(p1), "1j + (1+1j) x - (2-2j) x**2 + (3+0j) x**3")
+    assert_equal(str(p2), "1j + (1+1j) x + (-2+2j) x**2 + (3+0j) x**3")
+
+
+@pytest.mark.parametrize(('coefs', 'tgt'), (
+    (array([Fraction(1, 2), Fraction(3, 4)], dtype=object), (
+        "1/2 + 3/4·x"
+    )),
+    (array([1, 2, Fraction(5, 7)], dtype=object), (
+        "1 + 2·x + 5/7·x²"
+    )),
+    (array([Decimal('1.00'), Decimal('2.2'), 3], dtype=object), (
+        "1.00 + 2.2·x + 3·x²"
+    )),
+))
+def test_numeric_object_coefficients(coefs, tgt):
+    p = poly.Polynomial(coefs)
+    poly.set_default_printstyle('unicode')
+    assert_equal(str(p), tgt)
+
+
+@pytest.mark.parametrize(('coefs', 'tgt'), (
+    (array([1, 2, 'f'], dtype=object), '1 + 2·x + f·x²'),
+    (array([1, 2, [3, 4]], dtype=object), '1 + 2·x + [3, 4]·x²'),
+))
+def test_nonnumeric_object_coefficients(coefs, tgt):
+    """
+    Test coef fallback for object arrays of non-numeric coefficients.
+    """
+    p = poly.Polynomial(coefs)
+    poly.set_default_printstyle('unicode')
+    assert_equal(str(p), tgt)
+
+
+class TestFormat:
+    def test_format_unicode(self):
+        poly.set_default_printstyle('ascii')
+        p = poly.Polynomial([1, 2, 0, -1])
+        assert_equal(format(p, 'unicode'), "1.0 + 2.0·x + 0.0·x² - 1.0·x³")
+
+    def test_format_ascii(self):
+        poly.set_default_printstyle('unicode')
+        p = poly.Polynomial([1, 2, 0, -1])
+        assert_equal(
+            format(p, 'ascii'), "1.0 + 2.0 x + 0.0 x**2 - 1.0 x**3"
+        )
+
+    def test_empty_formatstr(self):
+        poly.set_default_printstyle('ascii')
+        p = poly.Polynomial([1, 2, 3])
+        assert_equal(format(p), "1.0 + 2.0 x + 3.0 x**2")
+        assert_equal(f"{p}", "1.0 + 2.0 x + 3.0 x**2")
+
+    def test_bad_formatstr(self):
+        p = poly.Polynomial([1, 2, 0, -1])
+        with pytest.raises(ValueError):
+            format(p, '.2f')
+
+
+@pytest.mark.parametrize(('poly', 'tgt'), (
+    (poly.Polynomial, '1.0 + 2.0·z + 3.0·z²'),
+    (poly.Chebyshev, '1.0 + 2.0·T₁(z) + 3.0·T₂(z)'),
+    (poly.Hermite, '1.0 + 2.0·H₁(z) + 3.0·H₂(z)'),
+    (poly.HermiteE, '1.0 + 2.0·He₁(z) + 3.0·He₂(z)'),
+    (poly.Laguerre, '1.0 + 2.0·L₁(z) + 3.0·L₂(z)'),
+    (poly.Legendre, '1.0 + 2.0·P₁(z) + 3.0·P₂(z)'),
+))
+def test_symbol(poly, tgt):
+    p = poly([1, 2, 3], symbol='z')
+    assert_equal(f"{p:unicode}", tgt)
+
+
+class TestRepr:
+    def test_polynomial_repr(self):
+        res = repr(poly.Polynomial([0, 1]))
+        tgt = (
+            "Polynomial([0., 1.], domain=[-1.,  1.], window=[-1.,  1.], "
+            "symbol='x')"
+        )
+        assert_equal(res, tgt)
+
+    def test_chebyshev_repr(self):
+        res = repr(poly.Chebyshev([0, 1]))
+        tgt = (
+            "Chebyshev([0., 1.], domain=[-1.,  1.], window=[-1.,  1.], "
+            "symbol='x')"
+        )
+        assert_equal(res, tgt)
+
+    def test_legendre_repr(self):
+        res = repr(poly.Legendre([0, 1]))
+        tgt = (
+            "Legendre([0., 1.], domain=[-1.,  1.], window=[-1.,  1.], "
+            "symbol='x')"
+        )
+        assert_equal(res, tgt)
+
+    def test_hermite_repr(self):
+        res = repr(poly.Hermite([0, 1]))
+        tgt = (
+            "Hermite([0., 1.], domain=[-1.,  1.], window=[-1.,  1.], "
+            "symbol='x')"
+        )
+        assert_equal(res, tgt)
+
+    def test_hermiteE_repr(self):
+        res = repr(poly.HermiteE([0, 1]))
+        tgt = (
+            "HermiteE([0., 1.], domain=[-1.,  1.], window=[-1.,  1.], "
+            "symbol='x')"
+        )
+        assert_equal(res, tgt)
+
+    def test_laguerre_repr(self):
+        res = repr(poly.Laguerre([0, 1]))
+        tgt = (
+            "Laguerre([0., 1.], domain=[0., 1.], window=[0., 1.], "
+            "symbol='x')"
+        )
+        assert_equal(res, tgt)
+
+
+class TestLatexRepr:
+    """Test the latex repr used by Jupyter"""
+
+    @staticmethod
+    def as_latex(obj):
+        # right now we ignore the formatting of scalars in our tests, since
+        # it makes them too verbose. Ideally, the formatting of scalars will
+        # be fixed such that tests below continue to pass
+        obj._repr_latex_scalar = lambda x, parens=False: str(x)
+        try:
+            return obj._repr_latex_()
+        finally:
+            del obj._repr_latex_scalar
+
+    def test_simple_polynomial(self):
+        # default input
+        p = poly.Polynomial([1, 2, 3])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0 + 2.0\,x + 3.0\,x^{2}$')
+
+        # translated input
+        p = poly.Polynomial([1, 2, 3], domain=[-2, 0])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0 + 2.0\,\left(1.0 + x\right) + 3.0\,\left(1.0 + x\right)^{2}$')  # noqa: E501
+
+        # scaled input
+        p = poly.Polynomial([1, 2, 3], domain=[-0.5, 0.5])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0 + 2.0\,\left(2.0x\right) + 3.0\,\left(2.0x\right)^{2}$')
+
+        # affine input
+        p = poly.Polynomial([1, 2, 3], domain=[-1, 0])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0 + 2.0\,\left(1.0 + 2.0x\right) + 3.0\,\left(1.0 + 2.0x\right)^{2}$')  # noqa: E501
+
+    def test_basis_func(self):
+        p = poly.Chebyshev([1, 2, 3])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0\,{T}_{0}(x) + 2.0\,{T}_{1}(x) + 3.0\,{T}_{2}(x)$')
+        # affine input - check no surplus parens are added
+        p = poly.Chebyshev([1, 2, 3], domain=[-1, 0])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0\,{T}_{0}(1.0 + 2.0x) + 2.0\,{T}_{1}(1.0 + 2.0x) + 3.0\,{T}_{2}(1.0 + 2.0x)$')  # noqa: E501
+
+    def test_multichar_basis_func(self):
+        p = poly.HermiteE([1, 2, 3])
+        assert_equal(self.as_latex(p),
+            r'$x \mapsto 1.0\,{He}_{0}(x) + 2.0\,{He}_{1}(x) + 3.0\,{He}_{2}(x)$')
+
+    def test_symbol_basic(self):
+        # default input
+        p = poly.Polynomial([1, 2, 3], symbol='z')
+        assert_equal(self.as_latex(p),
+            r'$z \mapsto 1.0 + 2.0\,z + 3.0\,z^{2}$')
+
+        # translated input
+        p = poly.Polynomial([1, 2, 3], domain=[-2, 0], symbol='z')
+        assert_equal(
+            self.as_latex(p),
+            (
+                r'$z \mapsto 1.0 + 2.0\,\left(1.0 + z\right) + 3.0\,'
+                r'\left(1.0 + z\right)^{2}$'
+            ),
+        )
+
+        # scaled input
+        p = poly.Polynomial([1, 2, 3], domain=[-0.5, 0.5], symbol='z')
+        assert_equal(
+            self.as_latex(p),
+            (
+                r'$z \mapsto 1.0 + 2.0\,\left(2.0z\right) + 3.0\,'
+                r'\left(2.0z\right)^{2}$'
+            ),
+        )
+
+        # affine input
+        p = poly.Polynomial([1, 2, 3], domain=[-1, 0], symbol='z')
+        assert_equal(
+            self.as_latex(p),
+            (
+                r'$z \mapsto 1.0 + 2.0\,\left(1.0 + 2.0z\right) + 3.0\,'
+                r'\left(1.0 + 2.0z\right)^{2}$'
+            ),
+        )
+
+    def test_numeric_object_coefficients(self):
+        coefs = array([Fraction(1, 2), Fraction(1)])
+        p = poly.Polynomial(coefs)
+        assert_equal(self.as_latex(p), '$x \\mapsto 1/2 + 1\\,x$')
+
+
+SWITCH_TO_EXP = (
+    '1.0 + (1.0e-01) x + (1.0e-02) x**2',
+    '1.2 + (1.2e-01) x + (1.2e-02) x**2',
+    '1.23 + 0.12 x + (1.23e-02) x**2 + (1.23e-03) x**3',
+    '1.235 + 0.123 x + (1.235e-02) x**2 + (1.235e-03) x**3',
+    '1.2346 + 0.1235 x + 0.0123 x**2 + (1.2346e-03) x**3 + (1.2346e-04) x**4',
+    '1.23457 + 0.12346 x + 0.01235 x**2 + (1.23457e-03) x**3 + '
+    '(1.23457e-04) x**4',
+    '1.234568 + 0.123457 x + 0.012346 x**2 + 0.001235 x**3 + '
+    '(1.234568e-04) x**4 + (1.234568e-05) x**5',
+    '1.2345679 + 0.1234568 x + 0.0123457 x**2 + 0.0012346 x**3 + '
+    '(1.2345679e-04) x**4 + (1.2345679e-05) x**5')
+
+class TestPrintOptions:
+    """
+    Test the output is properly configured via printoptions.
+    The exponential notation is enabled automatically when the values
+    are too small or too large.
+    """
+
+    @pytest.fixture(scope='class', autouse=True)
+    def use_ascii(self):
+        poly.set_default_printstyle('ascii')
+
+    def test_str(self):
+        p = poly.Polynomial([1 / 2, 1 / 7, 1 / 7 * 10**8, 1 / 7 * 10**9])
+        assert_equal(str(p), '0.5 + 0.14285714 x + 14285714.28571429 x**2 '
+                             '+ (1.42857143e+08) x**3')
+
+        with printoptions(precision=3):
+            assert_equal(str(p), '0.5 + 0.143 x + 14285714.286 x**2 '
+                                 '+ (1.429e+08) x**3')
+
+    def test_latex(self):
+        p = poly.Polynomial([1 / 2, 1 / 7, 1 / 7 * 10**8, 1 / 7 * 10**9])
+        assert_equal(p._repr_latex_(),
+            r'$x \mapsto \text{0.5} + \text{0.14285714}\,x + '
+            r'\text{14285714.28571429}\,x^{2} + '
+            r'\text{(1.42857143e+08)}\,x^{3}$')
+
+        with printoptions(precision=3):
+            assert_equal(p._repr_latex_(),
+                r'$x \mapsto \text{0.5} + \text{0.143}\,x + '
+                r'\text{14285714.286}\,x^{2} + \text{(1.429e+08)}\,x^{3}$')
+
+    def test_fixed(self):
+        p = poly.Polynomial([1 / 2])
+        assert_equal(str(p), '0.5')
+
+        with printoptions(floatmode='fixed'):
+            assert_equal(str(p), '0.50000000')
+
+        with printoptions(floatmode='fixed', precision=4):
+            assert_equal(str(p), '0.5000')
+
+    def test_switch_to_exp(self):
+        for i, s in enumerate(SWITCH_TO_EXP):
+            with printoptions(precision=i):
+                p = poly.Polynomial([1.23456789 * 10**-i
+                                     for i in range(i // 2 + 3)])
+                assert str(p).replace('\n', ' ') == s
+
+    def test_non_finite(self):
+        p = poly.Polynomial([nan, inf])
+        assert str(p) == 'nan + inf x'
+        assert p._repr_latex_() == r'$x \mapsto \text{nan} + \text{inf}\,x$'  # noqa: RUF027
+        with printoptions(nanstr='NAN', infstr='INF'):
+            assert str(p) == 'NAN + INF x'
+            assert p._repr_latex_() == \
+                r'$x \mapsto \text{NAN} + \text{INF}\,x$'
diff --git a/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_symbol.py b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_symbol.py
new file mode 100644
index 0000000000000000000000000000000000000000..50bea29d991c36037da91465bbd83283c528cce4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/polynomial/tests/test_symbol.py
@@ -0,0 +1,217 @@
+"""
+Tests related to the ``symbol`` attribute of the ABCPolyBase class.
+"""
+
+import pytest
+
+import numpy.polynomial as poly
+from numpy._core import array
+from numpy.testing import assert_, assert_equal, assert_raises
+
+
+class TestInit:
+    """
+    Test polynomial creation with symbol kwarg.
+    """
+    c = [1, 2, 3]
+
+    def test_default_symbol(self):
+        p = poly.Polynomial(self.c)
+        assert_equal(p.symbol, 'x')
+
+    @pytest.mark.parametrize(('bad_input', 'exception'), (
+        ('', ValueError),
+        ('3', ValueError),
+        (None, TypeError),
+        (1, TypeError),
+    ))
+    def test_symbol_bad_input(self, bad_input, exception):
+        with pytest.raises(exception):
+            p = poly.Polynomial(self.c, symbol=bad_input)
+
+    @pytest.mark.parametrize('symbol', (
+        'x',
+        'x_1',
+        'A',
+        'xyz',
+        'β',
+    ))
+    def test_valid_symbols(self, symbol):
+        """
+        Values for symbol that should pass input validation.
+        """
+        p = poly.Polynomial(self.c, symbol=symbol)
+        assert_equal(p.symbol, symbol)
+
+    def test_property(self):
+        """
+        'symbol' attribute is read only.
+        """
+        p = poly.Polynomial(self.c, symbol='x')
+        with pytest.raises(AttributeError):
+            p.symbol = 'z'
+
+    def test_change_symbol(self):
+        p = poly.Polynomial(self.c, symbol='y')
+        # Create new polynomial from p with different symbol
+        pt = poly.Polynomial(p.coef, symbol='t')
+        assert_equal(pt.symbol, 't')
+
+
+class TestUnaryOperators:
+    p = poly.Polynomial([1, 2, 3], symbol='z')
+
+    def test_neg(self):
+        n = -self.p
+        assert_equal(n.symbol, 'z')
+
+    def test_scalarmul(self):
+        out = self.p * 10
+        assert_equal(out.symbol, 'z')
+
+    def test_rscalarmul(self):
+        out = 10 * self.p
+        assert_equal(out.symbol, 'z')
+
+    def test_pow(self):
+        out = self.p ** 3
+        assert_equal(out.symbol, 'z')
+
+
+@pytest.mark.parametrize(
+    'rhs',
+    (
+        poly.Polynomial([4, 5, 6], symbol='z'),
+        array([4, 5, 6]),
+    ),
+)
+class TestBinaryOperatorsSameSymbol:
+    """
+    Ensure symbol is preserved for numeric operations on polynomials with
+    the same symbol
+    """
+    p = poly.Polynomial([1, 2, 3], symbol='z')
+
+    def test_add(self, rhs):
+        out = self.p + rhs
+        assert_equal(out.symbol, 'z')
+
+    def test_sub(self, rhs):
+        out = self.p - rhs
+        assert_equal(out.symbol, 'z')
+
+    def test_polymul(self, rhs):
+        out = self.p * rhs
+        assert_equal(out.symbol, 'z')
+
+    def test_divmod(self, rhs):
+        for out in divmod(self.p, rhs):
+            assert_equal(out.symbol, 'z')
+
+    def test_radd(self, rhs):
+        out = rhs + self.p
+        assert_equal(out.symbol, 'z')
+
+    def test_rsub(self, rhs):
+        out = rhs - self.p
+        assert_equal(out.symbol, 'z')
+
+    def test_rmul(self, rhs):
+        out = rhs * self.p
+        assert_equal(out.symbol, 'z')
+
+    def test_rdivmod(self, rhs):
+        for out in divmod(rhs, self.p):
+            assert_equal(out.symbol, 'z')
+
+
+class TestBinaryOperatorsDifferentSymbol:
+    p = poly.Polynomial([1, 2, 3], symbol='x')
+    other = poly.Polynomial([4, 5, 6], symbol='y')
+    ops = (p.__add__, p.__sub__, p.__mul__, p.__floordiv__, p.__mod__)
+
+    @pytest.mark.parametrize('f', ops)
+    def test_binops_fails(self, f):
+        assert_raises(ValueError, f, self.other)
+
+
+class TestEquality:
+    p = poly.Polynomial([1, 2, 3], symbol='x')
+
+    def test_eq(self):
+        other = poly.Polynomial([1, 2, 3], symbol='x')
+        assert_(self.p == other)
+
+    def test_neq(self):
+        other = poly.Polynomial([1, 2, 3], symbol='y')
+        assert_(not self.p == other)
+
+
+class TestExtraMethods:
+    """
+    Test other methods for manipulating/creating polynomial objects.
+    """
+    p = poly.Polynomial([1, 2, 3, 0], symbol='z')
+
+    def test_copy(self):
+        other = self.p.copy()
+        assert_equal(other.symbol, 'z')
+
+    def test_trim(self):
+        other = self.p.trim()
+        assert_equal(other.symbol, 'z')
+
+    def test_truncate(self):
+        other = self.p.truncate(2)
+        assert_equal(other.symbol, 'z')
+
+    @pytest.mark.parametrize('kwarg', (
+        {'domain': [-10, 10]},
+        {'window': [-10, 10]},
+        {'kind': poly.Chebyshev},
+    ))
+    def test_convert(self, kwarg):
+        other = self.p.convert(**kwarg)
+        assert_equal(other.symbol, 'z')
+
+    def test_integ(self):
+        other = self.p.integ()
+        assert_equal(other.symbol, 'z')
+
+    def test_deriv(self):
+        other = self.p.deriv()
+        assert_equal(other.symbol, 'z')
+
+
+def test_composition():
+    p = poly.Polynomial([3, 2, 1], symbol="t")
+    q = poly.Polynomial([5, 1, 0, -1], symbol="λ_1")
+    r = p(q)
+    assert r.symbol == "λ_1"
+
+
+#
+# Class methods that result in new polynomial class instances
+#
+
+
+def test_fit():
+    x, y = (range(10),) * 2
+    p = poly.Polynomial.fit(x, y, deg=1, symbol='z')
+    assert_equal(p.symbol, 'z')
+
+
+def test_froomroots():
+    roots = [-2, 2]
+    p = poly.Polynomial.fromroots(roots, symbol='z')
+    assert_equal(p.symbol, 'z')
+
+
+def test_identity():
+    p = poly.Polynomial.identity(domain=[-1, 1], window=[5, 20], symbol='z')
+    assert_equal(p.symbol, 'z')
+
+
+def test_basis():
+    p = poly.Polynomial.basis(3, symbol='z')
+    assert_equal(p.symbol, 'z')
diff --git a/python/user_packages/Python313/site-packages/numpy/random/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/random/__pycache__/__init__.cpython-313.pyc
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/cffi/extending.py b/python/user_packages/Python313/site-packages/numpy/random/_examples/cffi/extending.py
new file mode 100644
index 0000000000000000000000000000000000000000..dc9921d2fe0d46ca994e58c5a5c6f7c541318819
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/cffi/extending.py
@@ -0,0 +1,44 @@
+"""
+Use cffi to access any of the underlying C functions from distributions.h
+"""
+import os
+
+import cffi
+
+import numpy as np
+
+from .parse import parse_distributions_h
+
+ffi = cffi.FFI()
+
+inc_dir = os.path.join(np.get_include(), 'numpy')
+
+# Basic numpy types
+ffi.cdef('''
+    typedef intptr_t npy_intp;
+    typedef unsigned char npy_bool;
+
+''')
+
+parse_distributions_h(ffi, inc_dir)
+
+lib = ffi.dlopen(np.random._generator.__file__)
+
+# Compare the distributions.h random_standard_normal_fill to
+# Generator.standard_random
+bit_gen = np.random.PCG64()
+rng = np.random.Generator(bit_gen)
+state = bit_gen.state
+
+interface = rng.bit_generator.cffi
+n = 100
+vals_cffi = ffi.new('double[%d]' % n)
+lib.random_standard_normal_fill(interface.bit_generator, n, vals_cffi)
+
+# reset the state
+bit_gen.state = state
+
+vals = rng.standard_normal(n)
+
+for i in range(n):
+    assert vals[i] == vals_cffi[i]
diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/cffi/parse.py b/python/user_packages/Python313/site-packages/numpy/random/_examples/cffi/parse.py
new file mode 100644
index 0000000000000000000000000000000000000000..439b0e6822ef63d8d668fe50bef042b9a33edea2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/cffi/parse.py
@@ -0,0 +1,53 @@
+import os
+
+
+def parse_distributions_h(ffi, inc_dir):
+    """
+    Parse distributions.h located in inc_dir for CFFI, filling in the ffi.cdef
+
+    Read the function declarations without the "#define ..." macros that will
+    be filled in when loading the library.
+    """
+
+    with open(os.path.join(inc_dir, 'random', 'bitgen.h')) as fid:
+        s = []
+        for line in fid:
+            # massage the include file
+            if line.strip().startswith('#'):
+                continue
+            s.append(line)
+        ffi.cdef('\n'.join(s))
+
+    with open(os.path.join(inc_dir, 'random', 'distributions.h')) as fid:
+        s = []
+        in_skip = 0
+        ignoring = False
+        for line in fid:
+            # check for and remove extern "C" guards
+            if ignoring:
+                if line.strip().startswith('#endif'):
+                    ignoring = False
+                continue
+            if line.strip().startswith('#ifdef __cplusplus'):
+                ignoring = True
+
+            # massage the include file
+            if line.strip().startswith('#'):
+                continue
+
+            # skip any inlined function definition
+            # which starts with 'static inline xxx(...) {'
+            # and ends with a closing '}'
+            if line.strip().startswith('static inline'):
+                in_skip += line.count('{')
+                continue
+            elif in_skip > 0:
+                in_skip += line.count('{')
+                in_skip -= line.count('}')
+                continue
+
+            # replace defines with their value or remove them
+            line = line.replace('DECLDIR', '')
+            line = line.replace('RAND_INT_TYPE', 'int64_t')
+            s.append(line)
+        ffi.cdef('\n'.join(s))
diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/extending.pyx b/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/extending.pyx
new file mode 100644
index 0000000000000000000000000000000000000000..99ee9a3b188d3e9dcd04363446b40b11d2ea4457
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/extending.pyx
@@ -0,0 +1,77 @@
+#cython: language_level=3
+
+from libc.stdint cimport uint32_t
+from cpython.pycapsule cimport PyCapsule_IsValid, PyCapsule_GetPointer
+
+import numpy as np
+cimport numpy as np
+cimport cython
+
+from numpy.random cimport bitgen_t
+from numpy.random import PCG64
+
+np.import_array()
+
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+def uniform_mean(Py_ssize_t n):
+    cdef Py_ssize_t i
+    cdef bitgen_t *rng
+    cdef const char *capsule_name = "BitGenerator"
+    cdef double[::1] random_values
+    cdef np.ndarray randoms
+
+    x = PCG64()
+    capsule = x.capsule
+    if not PyCapsule_IsValid(capsule, capsule_name):
+        raise ValueError("Invalid pointer to anon_func_state")
+    rng = <bitgen_t *> PyCapsule_GetPointer(capsule, capsule_name)
+    random_values = np.empty(n)
+    # Best practice is to acquire the lock whenever generating random values.
+    # This prevents other threads from modifying the state. Acquiring the lock
+    # is only necessary if the GIL is also released, as in this example.
+    with x.lock, nogil:
+        for i in range(n):
+            random_values[i] = rng.next_double(rng.state)
+    randoms = np.asarray(random_values)
+    return randoms.mean()
+
+
+# This function is declared nogil so it can be used without the GIL below
+cdef uint32_t bounded_uint(uint32_t lb, uint32_t ub, bitgen_t *rng) nogil:
+    cdef uint32_t mask, delta, val
+    mask = delta = ub - lb
+    mask |= mask >> 1
+    mask |= mask >> 2
+    mask |= mask >> 4
+    mask |= mask >> 8
+    mask |= mask >> 16
+
+    val = rng.next_uint32(rng.state) & mask
+    while val > delta:
+        val = rng.next_uint32(rng.state) & mask
+
+    return lb + val
+
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+def bounded_uints(uint32_t lb, uint32_t ub, Py_ssize_t n):
+    cdef Py_ssize_t i
+    cdef bitgen_t *rng
+    cdef uint32_t[::1] out
+    cdef const char *capsule_name = "BitGenerator"
+
+    x = PCG64()
+    out = np.empty(n, dtype=np.uint32)
+    capsule = x.capsule
+
+    if not PyCapsule_IsValid(capsule, capsule_name):
+        raise ValueError("Invalid pointer to anon_func_state")
+    rng = <bitgen_t *>PyCapsule_GetPointer(capsule, capsule_name)
+
+    with x.lock, nogil:
+        for i in range(n):
+            out[i] = bounded_uint(lb, ub, rng)
+    return np.asarray(out)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/extending_distributions.pyx b/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/extending_distributions.pyx
new file mode 100644
index 0000000000000000000000000000000000000000..6139f3e44c1067affa0ec5468e383217caa20d41
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/extending_distributions.pyx
@@ -0,0 +1,117 @@
+#cython: language_level=3
+"""
+This file shows how the to use a BitGenerator to create a distribution.
+"""
+import numpy as np
+cimport numpy as np
+cimport cython
+from cpython.pycapsule cimport PyCapsule_IsValid, PyCapsule_GetPointer
+from libc.stdint cimport uint16_t, uint64_t
+from numpy.random cimport bitgen_t
+from numpy.random import PCG64
+from numpy.random.c_distributions cimport (
+      random_standard_uniform_fill, random_standard_uniform_fill_f)
+
+np.import_array()
+
+
+@cython.boundscheck(False)
+@cython.wraparound(False)
+def uniforms(Py_ssize_t n):
+    """
+    Create an array of `n` uniformly distributed doubles.
+    A 'real' distribution would want to process the values into
+    some non-uniform distribution
+    """
+    cdef Py_ssize_t i
+    cdef bitgen_t *rng
+    cdef const char *capsule_name = "BitGenerator"
+    cdef double[::1] random_values
+
+    x = PCG64()
+    capsule = x.capsule
+    # Optional check that the capsule if from a BitGenerator
+    if not PyCapsule_IsValid(capsule, capsule_name):
+        raise ValueError("Invalid pointer to anon_func_state")
+    # Cast the pointer
+    rng = <bitgen_t *> PyCapsule_GetPointer(capsule, capsule_name)
+    random_values = np.empty(n, dtype='float64')
+    with x.lock, nogil:
+        for i in range(n):
+            # Call the function
+            random_values[i] = rng.next_double(rng.state)
+    randoms = np.asarray(random_values)
+
+    return randoms
+
+# cython example 2
+@cython.boundscheck(False)
+@cython.wraparound(False)
+def uint10_uniforms(Py_ssize_t n):
+    """Uniform 10 bit integers stored as 16-bit unsigned integers"""
+    cdef Py_ssize_t i
+    cdef bitgen_t *rng
+    cdef const char *capsule_name = "BitGenerator"
+    cdef uint16_t[::1] random_values
+    cdef int bits_remaining
+    cdef int width = 10
+    cdef uint64_t buff, mask = 0x3FF
+
+    x = PCG64()
+    capsule = x.capsule
+    if not PyCapsule_IsValid(capsule, capsule_name):
+        raise ValueError("Invalid pointer to anon_func_state")
+    rng = <bitgen_t *> PyCapsule_GetPointer(capsule, capsule_name)
+    random_values = np.empty(n, dtype='uint16')
+    # Best practice is to release GIL and acquire the lock
+    bits_remaining = 0
+    with x.lock, nogil:
+        for i in range(n):
+            if bits_remaining < width:
+                buff = rng.next_uint64(rng.state)
+            random_values[i] = buff & mask
+            buff >>= width
+
+    randoms = np.asarray(random_values)
+    return randoms
+
+# cython example 3
+def uniforms_ex(bit_generator, Py_ssize_t n, dtype=np.float64):
+    """
+    Create an array of `n` uniformly distributed doubles via a "fill" function.
+
+    A 'real' distribution would want to process the values into
+    some non-uniform distribution
+
+    Parameters
+    ----------
+    bit_generator: BitGenerator instance
+    n: int
+        Output vector length
+    dtype: {str, dtype}, optional
+        Desired dtype, either 'd' (or 'float64') or 'f' (or 'float32'). The
+        default dtype value is 'd'
+    """
+    cdef bitgen_t *rng
+    cdef const char *capsule_name = "BitGenerator"
+    cdef np.ndarray randoms
+
+    capsule = bit_generator.capsule
+    # Optional check that the capsule if from a BitGenerator
+    if not PyCapsule_IsValid(capsule, capsule_name):
+        raise ValueError("Invalid pointer to anon_func_state")
+    # Cast the pointer
+    rng = <bitgen_t *> PyCapsule_GetPointer(capsule, capsule_name)
+
+    _dtype = np.dtype(dtype)
+    randoms = np.empty(n, dtype=_dtype)
+    if _dtype == np.float32:
+        with bit_generator.lock:
+            random_standard_uniform_fill_f(rng, n, <float*>np.PyArray_DATA(randoms))
+    elif _dtype == np.float64:
+        with bit_generator.lock:
+            random_standard_uniform_fill(rng, n, <double*>np.PyArray_DATA(randoms))
+    else:
+        raise TypeError('Unsupported dtype %r for random' % _dtype)
+    return randoms
+
diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/meson.build b/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/meson.build
new file mode 100644
index 0000000000000000000000000000000000000000..e2b89437e1ec75fb612e642b43bb65d22f4b6e64
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/cython/meson.build
@@ -0,0 +1,53 @@
+project('random-build-examples', 'c', 'cpp', 'cython')
+
+py_mod = import('python')
+py3 = py_mod.find_installation(pure: false)
+
+cc = meson.get_compiler('c')
+cy = meson.get_compiler('cython')
+
+# Keep synced with pyproject.toml
+if not cy.version().version_compare('>=3.0.6')
+  error('tests requires Cython >= 3.0.6')
+endif
+
+base_cython_args = []
+if cy.version().version_compare('>=3.1.0')
+  base_cython_args += ['-Xfreethreading_compatible=True']
+endif
+
+_numpy_abs = run_command(py3, ['-c',
+               'import os; os.chdir(".."); import numpy; print(os.path.abspath(numpy.get_include() + "../../.."))'],
+                         check: true).stdout().strip()
+
+npymath_path = _numpy_abs / '_core' / 'lib'
+npy_include_path = _numpy_abs / '_core' / 'include'
+npyrandom_path = _numpy_abs / 'random' / 'lib'
+npymath_lib = cc.find_library('npymath', dirs: npymath_path)
+npyrandom_lib = cc.find_library('npyrandom', dirs: npyrandom_path)
+
+py3.extension_module(
+    'extending_distributions',
+    'extending_distributions.pyx',
+    install: false,
+    include_directories: [npy_include_path],
+    dependencies: [npyrandom_lib, npymath_lib],
+    cython_args: base_cython_args,
+)
+py3.extension_module(
+    'extending',
+    'extending.pyx',
+    install: false,
+    include_directories: [npy_include_path],
+    dependencies: [npyrandom_lib, npymath_lib],
+    cython_args: base_cython_args,
+)
+py3.extension_module(
+    'extending_cpp',
+    'extending_distributions.pyx',
+    install: false,
+    override_options : ['cython_language=cpp'],
+    cython_args: base_cython_args + ['--module-name', 'extending_cpp'],
+    include_directories: [npy_include_path],
+    dependencies: [npyrandom_lib, npymath_lib],
+)
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/numba/extending.py b/python/user_packages/Python313/site-packages/numpy/random/_examples/numba/extending.py
new file mode 100644
index 0000000000000000000000000000000000000000..92b7359f2385fb47313b9f609505cd22df6eba01
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/numba/extending.py
@@ -0,0 +1,86 @@
+from timeit import timeit
+
+import numba as nb
+
+import numpy as np
+from numpy.random import PCG64
+
+bit_gen = PCG64()
+next_d = bit_gen.cffi.next_double
+state_addr = bit_gen.cffi.state_address
+
+def normals(n, state):
+    out = np.empty(n)
+    for i in range((n + 1) // 2):
+        x1 = 2.0 * next_d(state) - 1.0
+        x2 = 2.0 * next_d(state) - 1.0
+        r2 = x1 * x1 + x2 * x2
+        while r2 >= 1.0 or r2 == 0.0:
+            x1 = 2.0 * next_d(state) - 1.0
+            x2 = 2.0 * next_d(state) - 1.0
+            r2 = x1 * x1 + x2 * x2
+        f = np.sqrt(-2.0 * np.log(r2) / r2)
+        out[2 * i] = f * x1
+        if 2 * i + 1 < n:
+            out[2 * i + 1] = f * x2
+    return out
+
+
+# Compile using Numba
+normalsj = nb.jit(normals, nopython=True)
+# Must use state address not state with numba
+n = 10000
+
+def numbacall():
+    return normalsj(n, state_addr)
+
+
+rg = np.random.Generator(PCG64())
+
+def numpycall():
+    return rg.normal(size=n)
+
+
+# Check that the functions work
+r1 = numbacall()
+r2 = numpycall()
+assert r1.shape == (n,)
+assert r1.shape == r2.shape
+
+t1 = timeit(numbacall, number=1000)
+print(f'{t1:.2f} secs for {n} PCG64 (Numba/PCG64) gaussian randoms')
+t2 = timeit(numpycall, number=1000)
+print(f'{t2:.2f} secs for {n} PCG64 (NumPy/PCG64) gaussian randoms')
+
+# example 2
+
+next_u32 = bit_gen.ctypes.next_uint32
+ctypes_state = bit_gen.ctypes.state
+
+@nb.jit(nopython=True)
+def bounded_uint(lb, ub, state):
+    mask = delta = ub - lb
+    mask |= mask >> 1
+    mask |= mask >> 2
+    mask |= mask >> 4
+    mask |= mask >> 8
+    mask |= mask >> 16
+
+    val = next_u32(state) & mask
+    while val > delta:
+        val = next_u32(state) & mask
+
+    return lb + val
+
+
+print(bounded_uint(323, 2394691, ctypes_state.value))
+
+
+@nb.jit(nopython=True)
+def bounded_uints(lb, ub, n, state):
+    out = np.empty(n, dtype=np.uint32)
+    for i in range(n):
+        out[i] = bounded_uint(lb, ub, state)
+
+
+bounded_uints(323, 2394691, 10000000, ctypes_state.value)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/_examples/numba/extending_distributions.py b/python/user_packages/Python313/site-packages/numpy/random/_examples/numba/extending_distributions.py
new file mode 100644
index 0000000000000000000000000000000000000000..6051f5c45e0bf765a96302b3506951968eb5599b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/_examples/numba/extending_distributions.py
@@ -0,0 +1,67 @@
+r"""
+Building the required library in this example requires a source distribution
+of NumPy or clone of the NumPy git repository since distributions.c is not
+included in binary distributions.
+
+On *nix, execute in numpy/random/src/distributions
+
+export ${PYTHON_VERSION}=3.8 # Python version
+export PYTHON_INCLUDE=#path to Python's include folder, usually \
+    ${PYTHON_HOME}/include/python${PYTHON_VERSION}m
+export NUMPY_INCLUDE=#path to numpy's include folder, usually \
+    ${PYTHON_HOME}/lib/python${PYTHON_VERSION}/site-packages/numpy/_core/include
+gcc -shared -o libdistributions.so -fPIC distributions.c \
+    -I${NUMPY_INCLUDE} -I${PYTHON_INCLUDE}
+mv libdistributions.so ../../_examples/numba/
+
+On Windows
+
+rem PYTHON_HOME and PYTHON_VERSION are setup dependent, this is an example
+set PYTHON_HOME=c:\Anaconda
+set PYTHON_VERSION=38
+cl.exe /LD .\distributions.c -DDLL_EXPORT \
+    -I%PYTHON_HOME%\lib\site-packages\numpy\_core\include \
+    -I%PYTHON_HOME%\include %PYTHON_HOME%\libs\python%PYTHON_VERSION%.lib
+move distributions.dll ../../_examples/numba/
+"""
+import os
+
+import numba as nb
+from cffi import FFI
+
+import numpy as np
+from numpy.random import PCG64
+
+ffi = FFI()
+if os.path.exists('./distributions.dll'):
+    lib = ffi.dlopen('./distributions.dll')
+elif os.path.exists('./libdistributions.so'):
+    lib = ffi.dlopen('./libdistributions.so')
+else:
+    raise RuntimeError('Required DLL/so file was not found.')
+
+ffi.cdef("""
+double random_standard_normal(void *bitgen_state);
+""")
+x = PCG64()
+xffi = x.cffi
+bit_generator = xffi.bit_generator
+
+random_standard_normal = lib.random_standard_normal
+
+
+def normals(n, bit_generator):
+    out = np.empty(n)
+    for i in range(n):
+        out[i] = random_standard_normal(bit_generator)
+    return out
+
+
+normalsj = nb.jit(normals, nopython=True)
+
+# Numba requires a memory address for void *
+# Can also get address from x.ctypes.bit_generator.value
+bit_generator_address = int(ffi.cast('uintptr_t', bit_generator))
+
+norm = normalsj(1000, bit_generator_address)
+print(norm[:12])
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/__init__.py b/python/user_packages/Python313/site-packages/numpy/random/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/mt19937-testset-2.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/mt19937-testset-2.csv
new file mode 100644
index 0000000000000000000000000000000000000000..453eae146484160d1b342bc0e0dcd6365793cbb3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/data/mt19937-testset-2.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64-testset-1.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64-testset-1.csv
new file mode 100644
index 0000000000000000000000000000000000000000..00532a32e1c7e6c3ef80358ff9d90632d882be15
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64-testset-1.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64-testset-2.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64-testset-2.csv
new file mode 100644
index 0000000000000000000000000000000000000000..84717817db771ff7058b16aba58b0899a79acb99
--- /dev/null
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64dxsm-testset-1.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64dxsm-testset-1.csv
new file mode 100644
index 0000000000000000000000000000000000000000..c4a091210175e916a041b1cedf144577172d56bd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64dxsm-testset-1.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64dxsm-testset-2.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/pcg64dxsm-testset-2.csv
new file mode 100644
index 0000000000000000000000000000000000000000..dc94eca86e909d967b8d266c49fba512b843dbf5
--- /dev/null
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/philox-testset-1.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/philox-testset-1.csv
new file mode 100644
index 0000000000000000000000000000000000000000..d27a17c4abff9d2cec2b82075b09f9f068dc6f1e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/data/philox-testset-1.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/philox-testset-2.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/philox-testset-2.csv
new file mode 100644
index 0000000000000000000000000000000000000000..e8807a5856e681296ae1a3dcee904b5f5e93186e
--- /dev/null
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/sfc64-testset-1.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/sfc64-testset-1.csv
new file mode 100644
index 0000000000000000000000000000000000000000..c7768b244c59154786aa0f29c974c59a0440a9f5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/data/sfc64-testset-1.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/data/sfc64-testset-2.csv b/python/user_packages/Python313/site-packages/numpy/random/tests/data/sfc64-testset-2.csv
new file mode 100644
index 0000000000000000000000000000000000000000..55712be6efc0a92c53311eaefb0b0f4fa336a455
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/data/sfc64-testset-2.csv
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diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_direct.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_direct.py
new file mode 100644
index 0000000000000000000000000000000000000000..b6f188f1af1d48798b2d137d8e9b8d79c43b9074
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_direct.py
@@ -0,0 +1,595 @@
+import os
+import sys
+from os.path import join
+
+import pytest
+
+import numpy as np
+from numpy.random import (
+    MT19937,
+    PCG64,
+    PCG64DXSM,
+    SFC64,
+    Generator,
+    Philox,
+    RandomState,
+    SeedSequence,
+    default_rng,
+)
+from numpy.random._common import interface
+from numpy.testing import (
+    assert_allclose,
+    assert_array_equal,
+    assert_equal,
+    assert_raises,
+)
+
+try:
+    import cffi  # noqa: F401
+
+    MISSING_CFFI = False
+except ImportError:
+    MISSING_CFFI = True
+
+try:
+    import ctypes  # noqa: F401
+
+    MISSING_CTYPES = False
+except ImportError:
+    MISSING_CTYPES = False
+
+if sys.flags.optimize > 1:
+    # no docstrings present to inspect when PYTHONOPTIMIZE/Py_OptimizeFlag > 1
+    # cffi cannot succeed
+    MISSING_CFFI = True
+
+
+pwd = os.path.dirname(os.path.abspath(__file__))
+
+
+def assert_state_equal(actual, target):
+    for key in actual:
+        if isinstance(actual[key], dict):
+            assert_state_equal(actual[key], target[key])
+        elif isinstance(actual[key], np.ndarray):
+            assert_array_equal(actual[key], target[key])
+        else:
+            assert actual[key] == target[key]
+
+
+def uint32_to_float32(u):
+    return ((u >> np.uint32(8)) * (1.0 / 2**24)).astype(np.float32)
+
+
+def uniform32_from_uint64(x):
+    x = np.uint64(x)
+    upper = np.array(x >> np.uint64(32), dtype=np.uint32)
+    lower = np.uint64(0xffffffff)
+    lower = np.array(x & lower, dtype=np.uint32)
+    joined = np.column_stack([lower, upper]).ravel()
+    return uint32_to_float32(joined)
+
+
+def uniform32_from_uint53(x):
+    x = np.uint64(x) >> np.uint64(16)
+    x = np.uint32(x & np.uint64(0xffffffff))
+    return uint32_to_float32(x)
+
+
+def uniform32_from_uint32(x):
+    return uint32_to_float32(x)
+
+
+def uniform32_from_uint(x, bits):
+    if bits == 64:
+        return uniform32_from_uint64(x)
+    elif bits == 53:
+        return uniform32_from_uint53(x)
+    elif bits == 32:
+        return uniform32_from_uint32(x)
+    else:
+        raise NotImplementedError
+
+
+def uniform_from_uint(x, bits):
+    if bits in (64, 63, 53):
+        return uniform_from_uint64(x)
+    elif bits == 32:
+        return uniform_from_uint32(x)
+
+
+def uniform_from_uint64(x):
+    return (x >> np.uint64(11)) * (1.0 / 9007199254740992.0)
+
+
+def uniform_from_uint32(x):
+    out = np.empty(len(x) // 2)
+    for i in range(0, len(x), 2):
+        a = x[i] >> 5
+        b = x[i + 1] >> 6
+        out[i // 2] = (a * 67108864.0 + b) / 9007199254740992.0
+    return out
+
+
+def uniform_from_dsfmt(x):
+    return x.view(np.double) - 1.0
+
+
+def gauss_from_uint(x, n, bits):
+    if bits in (64, 63):
+        doubles = uniform_from_uint64(x)
+    elif bits == 32:
+        doubles = uniform_from_uint32(x)
+    else:  # bits == 'dsfmt'
+        doubles = uniform_from_dsfmt(x)
+    gauss = []
+    loc = 0
+    x1 = x2 = 0.0
+    while len(gauss) < n:
+        r2 = 2
+        while r2 >= 1.0 or r2 == 0.0:
+            x1 = 2.0 * doubles[loc] - 1.0
+            x2 = 2.0 * doubles[loc + 1] - 1.0
+            r2 = x1 * x1 + x2 * x2
+            loc += 2
+
+        f = np.sqrt(-2.0 * np.log(r2) / r2)
+        gauss.append(f * x2)
+        gauss.append(f * x1)
+
+    return gauss[:n]
+
+
+def test_seedsequence():
+    from numpy.random.bit_generator import (
+        ISeedSequence,
+        ISpawnableSeedSequence,
+        SeedlessSeedSequence,
+    )
+
+    s1 = SeedSequence(range(10), spawn_key=(1, 2), pool_size=6)
+    s1.spawn(10)
+    s2 = SeedSequence(**s1.state)
+    assert_equal(s1.state, s2.state)
+    assert_equal(s1.n_children_spawned, s2.n_children_spawned)
+
+    # The interfaces cannot be instantiated themselves.
+    assert_raises(TypeError, ISeedSequence)
+    assert_raises(TypeError, ISpawnableSeedSequence)
+    dummy = SeedlessSeedSequence()
+    assert_raises(NotImplementedError, dummy.generate_state, 10)
+    assert len(dummy.spawn(10)) == 10
+
+
+def test_generator_spawning():
+    """ Test spawning new generators and bit_generators directly.
+    """
+    rng = np.random.default_rng()
+    seq = rng.bit_generator.seed_seq
+    new_ss = seq.spawn(5)
+    expected_keys = [seq.spawn_key + (i,) for i in range(5)]
+    assert [c.spawn_key for c in new_ss] == expected_keys
+
+    new_bgs = rng.bit_generator.spawn(5)
+    expected_keys = [seq.spawn_key + (i,) for i in range(5, 10)]
+    assert [bg.seed_seq.spawn_key for bg in new_bgs] == expected_keys
+
+    new_rngs = rng.spawn(5)
+    expected_keys = [seq.spawn_key + (i,) for i in range(10, 15)]
+    found_keys = [rng.bit_generator.seed_seq.spawn_key for rng in new_rngs]
+    assert found_keys == expected_keys
+
+    # Sanity check that streams are actually different:
+    assert new_rngs[0].uniform() != new_rngs[1].uniform()
+
+
+def test_non_spawnable():
+    from numpy.random.bit_generator import ISeedSequence
+
+    class FakeSeedSequence:
+        def generate_state(self, n_words, dtype=np.uint32):
+            return np.zeros(n_words, dtype=dtype)
+
+    ISeedSequence.register(FakeSeedSequence)
+
+    rng = np.random.default_rng(FakeSeedSequence())
+
+    with pytest.raises(TypeError, match="The underlying SeedSequence"):
+        rng.spawn(5)
+
+    with pytest.raises(TypeError, match="The underlying SeedSequence"):
+        rng.bit_generator.spawn(5)
+
+
+class Base:
+    dtype = np.uint64
+    data2 = data1 = {}
+
+    @classmethod
+    def setup_class(cls):
+        cls.bit_generator = PCG64
+        cls.bits = 64
+        cls.dtype = np.uint64
+        cls.seed_error_type = TypeError
+        cls.invalid_init_types = []
+        cls.invalid_init_values = []
+
+    @classmethod
+    def _read_csv(cls, filename):
+        with open(filename) as csv:
+            seed = csv.readline()
+            seed = seed.split(',')
+            seed = [int(s.strip(), 0) for s in seed[1:]]
+            data = []
+            for line in csv:
+                data.append(int(line.split(',')[-1].strip(), 0))
+            return {'seed': seed, 'data': np.array(data, dtype=cls.dtype)}
+
+    def test_raw(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        uints = bit_generator.random_raw(1000)
+        assert_equal(uints, self.data1['data'])
+
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        uints = bit_generator.random_raw()
+        assert_equal(uints, self.data1['data'][0])
+
+        bit_generator = self.bit_generator(*self.data2['seed'])
+        uints = bit_generator.random_raw(1000)
+        assert_equal(uints, self.data2['data'])
+
+    def test_random_raw(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        uints = bit_generator.random_raw(output=False)
+        assert uints is None
+        uints = bit_generator.random_raw(1000, output=False)
+        assert uints is None
+
+    def test_gauss_inv(self):
+        n = 25
+        rs = RandomState(self.bit_generator(*self.data1['seed']))
+        gauss = rs.standard_normal(n)
+        assert_allclose(gauss,
+                        gauss_from_uint(self.data1['data'], n, self.bits))
+
+        rs = RandomState(self.bit_generator(*self.data2['seed']))
+        gauss = rs.standard_normal(25)
+        assert_allclose(gauss,
+                        gauss_from_uint(self.data2['data'], n, self.bits))
+
+    def test_uniform_double(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        vals = uniform_from_uint(self.data1['data'], self.bits)
+        uniforms = rs.random(len(vals))
+        assert_allclose(uniforms, vals)
+        assert_equal(uniforms.dtype, np.float64)
+
+        rs = Generator(self.bit_generator(*self.data2['seed']))
+        vals = uniform_from_uint(self.data2['data'], self.bits)
+        uniforms = rs.random(len(vals))
+        assert_allclose(uniforms, vals)
+        assert_equal(uniforms.dtype, np.float64)
+
+    def test_uniform_float(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        vals = uniform32_from_uint(self.data1['data'], self.bits)
+        uniforms = rs.random(len(vals), dtype=np.float32)
+        assert_allclose(uniforms, vals)
+        assert_equal(uniforms.dtype, np.float32)
+
+        rs = Generator(self.bit_generator(*self.data2['seed']))
+        vals = uniform32_from_uint(self.data2['data'], self.bits)
+        uniforms = rs.random(len(vals), dtype=np.float32)
+        assert_allclose(uniforms, vals)
+        assert_equal(uniforms.dtype, np.float32)
+
+    def test_repr(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        assert 'Generator' in repr(rs)
+        assert f'{id(rs):#x}'.upper().replace('X', 'x') in repr(rs)
+
+    def test_str(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        assert 'Generator' in str(rs)
+        assert str(self.bit_generator.__name__) in str(rs)
+        assert f'{id(rs):#x}'.upper().replace('X', 'x') not in str(rs)
+
+    def test_pickle(self):
+        import pickle
+
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        state = bit_generator.state
+        bitgen_pkl = pickle.dumps(bit_generator)
+        reloaded = pickle.loads(bitgen_pkl)
+        reloaded_state = reloaded.state
+        assert_array_equal(Generator(bit_generator).standard_normal(1000),
+                           Generator(reloaded).standard_normal(1000))
+        assert bit_generator is not reloaded
+        assert_state_equal(reloaded_state, state)
+
+        ss = SeedSequence(100)
+        aa = pickle.loads(pickle.dumps(ss))
+        assert_equal(ss.state, aa.state)
+
+    def test_pickle_preserves_seed_sequence(self):
+        # GH 26234
+        # Add explicit test that bit generators preserve seed sequences
+        import pickle
+
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        ss = bit_generator.seed_seq
+        bg_plk = pickle.loads(pickle.dumps(bit_generator))
+        ss_plk = bg_plk.seed_seq
+        assert_equal(ss.state, ss_plk.state)
+        assert_equal(ss.pool, ss_plk.pool)
+
+        bit_generator.seed_seq.spawn(10)
+        bg_plk = pickle.loads(pickle.dumps(bit_generator))
+        ss_plk = bg_plk.seed_seq
+        assert_equal(ss.state, ss_plk.state)
+        assert_equal(ss.n_children_spawned, ss_plk.n_children_spawned)
+
+    def test_invalid_state_type(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        with pytest.raises(TypeError):
+            bit_generator.state = {'1'}
+
+    def test_invalid_state_value(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        state = bit_generator.state
+        state['bit_generator'] = 'otherBitGenerator'
+        with pytest.raises(ValueError):
+            bit_generator.state = state
+
+    def test_invalid_init_type(self):
+        bit_generator = self.bit_generator
+        for st in self.invalid_init_types:
+            with pytest.raises(TypeError):
+                bit_generator(*st)
+
+    def test_invalid_init_values(self):
+        bit_generator = self.bit_generator
+        for st in self.invalid_init_values:
+            with pytest.raises((ValueError, OverflowError)):
+                bit_generator(*st)
+
+    def test_benchmark(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        bit_generator._benchmark(1)
+        bit_generator._benchmark(1, 'double')
+        with pytest.raises(ValueError):
+            bit_generator._benchmark(1, 'int32')
+
+    @pytest.mark.skipif(MISSING_CFFI, reason='cffi not available')
+    def test_cffi(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        cffi_interface = bit_generator.cffi
+        assert isinstance(cffi_interface, interface)
+        other_cffi_interface = bit_generator.cffi
+        assert other_cffi_interface is cffi_interface
+
+    @pytest.mark.skipif(MISSING_CTYPES, reason='ctypes not available')
+    def test_ctypes(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        ctypes_interface = bit_generator.ctypes
+        assert isinstance(ctypes_interface, interface)
+        other_ctypes_interface = bit_generator.ctypes
+        assert other_ctypes_interface is ctypes_interface
+
+    def test_getstate(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        state = bit_generator.state
+        alt_state = bit_generator.__getstate__()
+        assert isinstance(alt_state, tuple)
+        assert_state_equal(state, alt_state[0])
+        assert isinstance(alt_state[1], SeedSequence)
+
+class TestPhilox(Base):
+    @classmethod
+    def setup_class(cls):
+        cls.bit_generator = Philox
+        cls.bits = 64
+        cls.dtype = np.uint64
+        cls.data1 = cls._read_csv(
+            join(pwd, './data/philox-testset-1.csv'))
+        cls.data2 = cls._read_csv(
+            join(pwd, './data/philox-testset-2.csv'))
+        cls.seed_error_type = TypeError
+        cls.invalid_init_types = []
+        cls.invalid_init_values = [(1, None, 1), (-1,), (None, None, 2 ** 257 + 1)]
+
+    def test_set_key(self):
+        bit_generator = self.bit_generator(*self.data1['seed'])
+        state = bit_generator.state
+        keyed = self.bit_generator(counter=state['state']['counter'],
+                                   key=state['state']['key'])
+        assert_state_equal(bit_generator.state, keyed.state)
+
+
+class TestPCG64(Base):
+    @classmethod
+    def setup_class(cls):
+        cls.bit_generator = PCG64
+        cls.bits = 64
+        cls.dtype = np.uint64
+        cls.data1 = cls._read_csv(join(pwd, './data/pcg64-testset-1.csv'))
+        cls.data2 = cls._read_csv(join(pwd, './data/pcg64-testset-2.csv'))
+        cls.seed_error_type = (ValueError, TypeError)
+        cls.invalid_init_types = [(3.2,), ([None],), (1, None)]
+        cls.invalid_init_values = [(-1,)]
+
+    def test_advance_symmetry(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        state = rs.bit_generator.state
+        step = -0x9e3779b97f4a7c150000000000000000
+        rs.bit_generator.advance(step)
+        val_neg = rs.integers(10)
+        rs.bit_generator.state = state
+        rs.bit_generator.advance(2**128 + step)
+        val_pos = rs.integers(10)
+        rs.bit_generator.state = state
+        rs.bit_generator.advance(10 * 2**128 + step)
+        val_big = rs.integers(10)
+        assert val_neg == val_pos
+        assert val_big == val_pos
+
+    def test_advange_large(self):
+        rs = Generator(self.bit_generator(38219308213743))
+        pcg = rs.bit_generator
+        state = pcg.state["state"]
+        initial_state = 287608843259529770491897792873167516365
+        assert state["state"] == initial_state
+        pcg.advance(sum(2**i for i in (96, 64, 32, 16, 8, 4, 2, 1)))
+        state = pcg.state["state"]
+        advanced_state = 135275564607035429730177404003164635391
+        assert state["state"] == advanced_state
+
+
+class TestPCG64DXSM(Base):
+    @classmethod
+    def setup_class(cls):
+        cls.bit_generator = PCG64DXSM
+        cls.bits = 64
+        cls.dtype = np.uint64
+        cls.data1 = cls._read_csv(join(pwd, './data/pcg64dxsm-testset-1.csv'))
+        cls.data2 = cls._read_csv(join(pwd, './data/pcg64dxsm-testset-2.csv'))
+        cls.seed_error_type = (ValueError, TypeError)
+        cls.invalid_init_types = [(3.2,), ([None],), (1, None)]
+        cls.invalid_init_values = [(-1,)]
+
+    def test_advance_symmetry(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        state = rs.bit_generator.state
+        step = -0x9e3779b97f4a7c150000000000000000
+        rs.bit_generator.advance(step)
+        val_neg = rs.integers(10)
+        rs.bit_generator.state = state
+        rs.bit_generator.advance(2**128 + step)
+        val_pos = rs.integers(10)
+        rs.bit_generator.state = state
+        rs.bit_generator.advance(10 * 2**128 + step)
+        val_big = rs.integers(10)
+        assert val_neg == val_pos
+        assert val_big == val_pos
+
+    def test_advange_large(self):
+        rs = Generator(self.bit_generator(38219308213743))
+        pcg = rs.bit_generator
+        state = pcg.state
+        initial_state = 287608843259529770491897792873167516365
+        assert state["state"]["state"] == initial_state
+        pcg.advance(sum(2**i for i in (96, 64, 32, 16, 8, 4, 2, 1)))
+        state = pcg.state["state"]
+        advanced_state = 277778083536782149546677086420637664879
+        assert state["state"] == advanced_state
+
+
+class TestMT19937(Base):
+    @classmethod
+    def setup_class(cls):
+        cls.bit_generator = MT19937
+        cls.bits = 32
+        cls.dtype = np.uint32
+        cls.data1 = cls._read_csv(join(pwd, './data/mt19937-testset-1.csv'))
+        cls.data2 = cls._read_csv(join(pwd, './data/mt19937-testset-2.csv'))
+        cls.seed_error_type = ValueError
+        cls.invalid_init_types = []
+        cls.invalid_init_values = [(-1,)]
+
+    def test_seed_float_array(self):
+        assert_raises(TypeError, self.bit_generator, np.array([np.pi]))
+        assert_raises(TypeError, self.bit_generator, np.array([-np.pi]))
+        assert_raises(TypeError, self.bit_generator, np.array([np.pi, -np.pi]))
+        assert_raises(TypeError, self.bit_generator, np.array([0, np.pi]))
+        assert_raises(TypeError, self.bit_generator, [np.pi])
+        assert_raises(TypeError, self.bit_generator, [0, np.pi])
+
+    def test_state_tuple(self):
+        rs = Generator(self.bit_generator(*self.data1['seed']))
+        bit_generator = rs.bit_generator
+        state = bit_generator.state
+        desired = rs.integers(2 ** 16)
+        tup = (state['bit_generator'], state['state']['key'],
+               state['state']['pos'])
+        bit_generator.state = tup
+        actual = rs.integers(2 ** 16)
+        assert_equal(actual, desired)
+        tup = tup + (0, 0.0)
+        bit_generator.state = tup
+        actual = rs.integers(2 ** 16)
+        assert_equal(actual, desired)
+
+
+class TestSFC64(Base):
+    @classmethod
+    def setup_class(cls):
+        cls.bit_generator = SFC64
+        cls.bits = 64
+        cls.dtype = np.uint64
+        cls.data1 = cls._read_csv(
+            join(pwd, './data/sfc64-testset-1.csv'))
+        cls.data2 = cls._read_csv(
+            join(pwd, './data/sfc64-testset-2.csv'))
+        cls.seed_error_type = (ValueError, TypeError)
+        cls.invalid_init_types = [(3.2,), ([None],), (1, None)]
+        cls.invalid_init_values = [(-1,)]
+
+    def test_legacy_pickle(self):
+        # Pickling format was changed in 2.0.x
+        import gzip
+        import pickle
+
+        expected_state = np.array(
+            [
+                9957867060933711493,
+                532597980065565856,
+                14769588338631205282,
+                13
+            ],
+            dtype=np.uint64
+        )
+
+        base_path = os.path.split(os.path.abspath(__file__))[0]
+        pkl_file = os.path.join(base_path, "data", "sfc64_np126.pkl.gz")
+        with gzip.open(pkl_file) as gz:
+            sfc = pickle.load(gz)
+
+        assert isinstance(sfc, SFC64)
+        assert_equal(sfc.state["state"]["state"], expected_state)
+
+
+class TestDefaultRNG:
+    def test_seed(self):
+        for args in [(), (None,), (1234,), ([1234, 5678],)]:
+            rg = default_rng(*args)
+            assert isinstance(rg.bit_generator, PCG64)
+
+    def test_passthrough(self):
+        bg = Philox()
+        rg = default_rng(bg)
+        assert rg.bit_generator is bg
+        rg2 = default_rng(rg)
+        assert rg2 is rg
+        assert rg2.bit_generator is bg
+
+    @pytest.mark.thread_unsafe(
+        reason="np.random.set_bit_generator affects global state"
+    )
+    def test_coercion_RandomState_Generator(self):
+        # use default_rng to coerce RandomState to Generator
+        rs = RandomState(1234)
+        rg = default_rng(rs)
+        assert isinstance(rg.bit_generator, MT19937)
+        assert rg.bit_generator is rs._bit_generator
+
+        # RandomState with a non MT19937 bit generator
+        _original = np.random.get_bit_generator()
+        bg = PCG64(12342298)
+        np.random.set_bit_generator(bg)
+        rs = np.random.mtrand._rand
+        rg = default_rng(rs)
+        assert rg.bit_generator is bg
+
+        # vital to get global state back to original, otherwise
+        # other tests start to fail.
+        np.random.set_bit_generator(_original)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_extending.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_extending.py
new file mode 100644
index 0000000000000000000000000000000000000000..efb1241e411096869c134a38e1f4c90876828adb
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_extending.py
@@ -0,0 +1,131 @@
+import os
+import shutil
+import subprocess
+import sys
+import sysconfig
+import warnings
+from importlib.util import module_from_spec, spec_from_file_location
+
+import pytest
+
+import numpy as np
+from numpy.testing import IS_EDITABLE, IS_WASM
+
+try:
+    import cffi
+except ImportError:
+    cffi = None
+
+if sys.flags.optimize > 1:
+    # no docstrings present to inspect when PYTHONOPTIMIZE/Py_OptimizeFlag > 1
+    # cffi cannot succeed
+    cffi = None
+
+try:
+    with warnings.catch_warnings(record=True) as w:
+        # numba issue gh-4733
+        warnings.filterwarnings('always', '', DeprecationWarning)
+        import numba
+except (ImportError, SystemError):
+    # Certain numpy/numba versions trigger a SystemError due to a numba bug
+    numba = None
+
+try:
+    import cython
+    from Cython.Compiler.Version import version as cython_version
+except ImportError:
+    cython = None
+else:
+    from numpy._utils import _pep440
+    # Note: keep in sync with the one in pyproject.toml
+    required_version = '3.0.6'
+    if _pep440.parse(cython_version) < _pep440.Version(required_version):
+        # too old or wrong cython, skip the test
+        cython = None
+
+
+@pytest.mark.skipif(
+    IS_EDITABLE,
+    reason='Editable install cannot find .pxd headers'
+)
+@pytest.mark.skipif(
+        sys.platform == "win32" and sys.maxsize < 2**32,
+        reason="Failing in 32-bit Windows wheel build job, skip for now"
+)
+@pytest.mark.skipif(IS_WASM, reason="Can't start subprocess")
+@pytest.mark.skipif(cython is None, reason="requires cython")
+@pytest.mark.skipif(sysconfig.get_platform() == 'win-arm64',
+                    reason='Meson unable to find MSVC linker on win-arm64')
+@pytest.mark.slow
+@pytest.mark.thread_unsafe(
+    reason="building cython code in a subprocess doesn't make sense to do in many "
+           "threads and sometimes crashes"
+)
+def test_cython(tmp_path):
+    import glob
+    # build the examples in a temporary directory
+    srcdir = os.path.join(os.path.dirname(__file__), '..')
+    shutil.copytree(srcdir, tmp_path / 'random')
+    build_dir = tmp_path / 'random' / '_examples' / 'cython'
+    target_dir = build_dir / "build"
+    os.makedirs(target_dir, exist_ok=True)
+    # Ensure we use the correct Python interpreter even when `meson` is
+    # installed in a different Python environment (see gh-24956)
+    native_file = str(build_dir / 'interpreter-native-file.ini')
+    with open(native_file, 'w') as f:
+        f.write("[binaries]\n")
+        f.write(f"python = '{sys.executable}'\n")
+        f.write(f"python3 = '{sys.executable}'")
+    if sys.platform == "win32":
+        subprocess.check_call(["meson", "setup",
+                               "--buildtype=release",
+                               "--vsenv", "--native-file", native_file,
+                               str(build_dir)],
+                              cwd=target_dir,
+                              )
+    else:
+        subprocess.check_call(["meson", "setup",
+                               "--native-file", native_file, str(build_dir)],
+                              cwd=target_dir
+                              )
+    subprocess.check_call(["meson", "compile", "-vv"], cwd=target_dir)
+
+    # gh-16162: make sure numpy's __init__.pxd was used for cython
+    # not really part of this test, but it is a convenient place to check
+
+    g = glob.glob(str(target_dir / "*" / "extending.pyx.c"))
+    with open(g[0]) as fid:
+        txt_to_find = 'NumPy API declarations from "numpy/__init__'
+        for line in fid:
+            if txt_to_find in line:
+                break
+        else:
+            assert False, f"Could not find '{txt_to_find}' in C file, wrong pxd used"
+    # import without adding the directory to sys.path
+    suffix = sysconfig.get_config_var('EXT_SUFFIX')
+
+    def load(modname):
+        so = (target_dir / modname).with_suffix(suffix)
+        spec = spec_from_file_location(modname, so)
+        mod = module_from_spec(spec)
+        spec.loader.exec_module(mod)
+        return mod
+
+    # test that the module can be imported
+    load("extending")
+    load("extending_cpp")
+    # actually test the cython c-extension
+    extending_distributions = load("extending_distributions")
+    from numpy.random import PCG64
+    values = extending_distributions.uniforms_ex(PCG64(0), 10, 'd')
+    assert values.shape == (10,)
+    assert values.dtype == np.float64
+
+@pytest.mark.skipif(numba is None or cffi is None,
+                    reason="requires numba and cffi")
+def test_numba():
+    from numpy.random._examples.numba import extending  # noqa: F401
+
+@pytest.mark.skipif(cffi is None, reason="requires cffi")
+def test_cffi():
+    from numpy.random._examples.cffi import extending  # noqa: F401
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_generator_mt19937.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_generator_mt19937.py
new file mode 100644
index 0000000000000000000000000000000000000000..92a57ba4dca246a4f9dfc35cfc5d0a2cffc76ec6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_generator_mt19937.py
@@ -0,0 +1,2825 @@
+import hashlib
+import os.path
+import sys
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy.exceptions import AxisError
+from numpy.linalg import LinAlgError
+from numpy.random import MT19937, Generator, RandomState, SeedSequence
+from numpy.testing import (
+    IS_WASM,
+    assert_,
+    assert_allclose,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_no_warnings,
+    assert_raises,
+)
+
+random = Generator(MT19937())
+
+JUMP_TEST_DATA = [
+    {
+        "seed": 0,
+        "steps": 10,
+        "initial": {"key_sha256": "bb1636883c2707b51c5b7fc26c6927af4430f2e0785a8c7bc886337f919f9edf", "pos": 9},    # noqa: E501
+        "jumped":  {"key_sha256": "ff682ac12bb140f2d72fba8d3506cf4e46817a0db27aae1683867629031d8d55", "pos": 598},  # noqa: E501
+    },
+    {
+        "seed": 384908324,
+        "steps": 312,
+        "initial": {"key_sha256": "16b791a1e04886ccbbb4d448d6ff791267dc458ae599475d08d5cced29d11614", "pos": 311},  # noqa: E501
+        "jumped":  {"key_sha256": "a0110a2cf23b56be0feaed8f787a7fc84bef0cb5623003d75b26bdfa1c18002c", "pos": 276},  # noqa: E501
+    },
+    {
+        "seed": [839438204, 980239840, 859048019, 821],
+        "steps": 511,
+        "initial": {"key_sha256": "d306cf01314d51bd37892d874308200951a35265ede54d200f1e065004c3e9ea", "pos": 510},  # noqa: E501
+        "jumped":  {"key_sha256": "0e00ab449f01a5195a83b4aee0dfbc2ce8d46466a640b92e33977d2e42f777f8", "pos": 475},  # noqa: E501
+    },
+]
+
+
+@pytest.fixture(scope='module', params=[True, False])
+def endpoint(request):
+    return request.param
+
+
+class TestSeed:
+    def test_scalar(self):
+        s = Generator(MT19937(0))
+        assert_equal(s.integers(1000), 479)
+        s = Generator(MT19937(4294967295))
+        assert_equal(s.integers(1000), 324)
+
+    def test_array(self):
+        s = Generator(MT19937(range(10)))
+        assert_equal(s.integers(1000), 465)
+        s = Generator(MT19937(np.arange(10)))
+        assert_equal(s.integers(1000), 465)
+        s = Generator(MT19937([0]))
+        assert_equal(s.integers(1000), 479)
+        s = Generator(MT19937([4294967295]))
+        assert_equal(s.integers(1000), 324)
+
+    def test_seedsequence(self):
+        s = MT19937(SeedSequence(0))
+        assert_equal(s.random_raw(1), 2058676884)
+
+    def test_invalid_scalar(self):
+        # seed must be an unsigned 32 bit integer
+        assert_raises(TypeError, MT19937, -0.5)
+        assert_raises(ValueError, MT19937, -1)
+
+    def test_invalid_array(self):
+        # seed must be an unsigned integer
+        assert_raises(TypeError, MT19937, [-0.5])
+        assert_raises(ValueError, MT19937, [-1])
+        assert_raises(ValueError, MT19937, [1, -2, 4294967296])
+
+    def test_noninstantized_bitgen(self):
+        assert_raises(ValueError, Generator, MT19937)
+
+
+class TestBinomial:
+    def test_n_zero(self):
+        # Tests the corner case of n == 0 for the binomial distribution.
+        # binomial(0, p) should be zero for any p in [0, 1].
+        # This test addresses issue #3480.
+        zeros = np.zeros(2, dtype='int')
+        for p in [0, .5, 1]:
+            assert_(random.binomial(0, p) == 0)
+            assert_array_equal(random.binomial(zeros, p), zeros)
+
+    def test_p_is_nan(self):
+        # Issue #4571.
+        assert_raises(ValueError, random.binomial, 1, np.nan)
+
+    def test_p_extremely_small(self):
+        n = 50000000000
+        p = 5e-17
+        sample_size = 20000000
+        x = random.binomial(n, p, size=sample_size)
+        sample_mean = x.mean()
+        expected_mean = n * p
+        sigma = np.sqrt(n * p * (1 - p) / sample_size)
+        # Note: the parameters were chosen so that expected_mean - 6*sigma
+        # is a positive value.  The first `assert` below validates that
+        # assumption (in case someone edits the parameters in the future).
+        # The second `assert` is the actual test.
+        low_bound = expected_mean - 6 * sigma
+        assert low_bound > 0, "bad test params: 6-sigma lower bound is negative"
+        test_msg = (f"sample mean {sample_mean} deviates from the expected mean "
+                    f"{expected_mean} by more than 6*sigma")
+        assert abs(expected_mean - sample_mean) < 6 * sigma, test_msg
+
+
+class TestMultinomial:
+    def test_basic(self):
+        random.multinomial(100, [0.2, 0.8])
+
+    def test_zero_probability(self):
+        random.multinomial(100, [0.2, 0.8, 0.0, 0.0, 0.0])
+
+    def test_int_negative_interval(self):
+        assert_(-5 <= random.integers(-5, -1) < -1)
+        x = random.integers(-5, -1, 5)
+        assert_(np.all(-5 <= x))
+        assert_(np.all(x < -1))
+
+    def test_size(self):
+        # gh-3173
+        p = [0.5, 0.5]
+        assert_equal(random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.multinomial(1, p, [2, 2]).shape, (2, 2, 2))
+        assert_equal(random.multinomial(1, p, (2, 2)).shape, (2, 2, 2))
+        assert_equal(random.multinomial(1, p, np.array((2, 2))).shape,
+                     (2, 2, 2))
+
+        assert_raises(TypeError, random.multinomial, 1, p,
+                      float(1))
+
+    def test_invalid_prob(self):
+        assert_raises(ValueError, random.multinomial, 100, [1.1, 0.2])
+        assert_raises(ValueError, random.multinomial, 100, [-.1, 0.9])
+
+    def test_invalid_n(self):
+        assert_raises(ValueError, random.multinomial, -1, [0.8, 0.2])
+        assert_raises(ValueError, random.multinomial, [-1] * 10, [0.8, 0.2])
+
+    def test_p_non_contiguous(self):
+        p = np.arange(15.)
+        p /= np.sum(p[1::3])
+        pvals = p[1::3]
+        random = Generator(MT19937(1432985819))
+        non_contig = random.multinomial(100, pvals=pvals)
+        random = Generator(MT19937(1432985819))
+        contig = random.multinomial(100, pvals=np.ascontiguousarray(pvals))
+        assert_array_equal(non_contig, contig)
+
+    def test_multinomial_pvals_float32(self):
+        x = np.array([9.9e-01, 9.9e-01, 1.0e-09, 1.0e-09, 1.0e-09, 1.0e-09,
+                      1.0e-09, 1.0e-09, 1.0e-09, 1.0e-09], dtype=np.float32)
+        pvals = x / x.sum()
+        random = Generator(MT19937(1432985819))
+        match = r"[\w\s]*pvals array is cast to 64-bit floating"
+        with pytest.raises(ValueError, match=match):
+            random.multinomial(1, pvals)
+
+
+class TestMultivariateHypergeometric:
+
+    seed = 8675309
+
+    def test_argument_validation(self):
+        # Error cases...
+
+        # `colors` must be a 1-d sequence
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      10, 4)
+
+        # Negative nsample
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      [2, 3, 4], -1)
+
+        # Negative color
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      [-1, 2, 3], 2)
+
+        # nsample exceeds sum(colors)
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      [2, 3, 4], 10)
+
+        # nsample exceeds sum(colors) (edge case of empty colors)
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      [], 1)
+
+        # Validation errors associated with very large values in colors.
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      [999999999, 101], 5, 1, 'marginals')
+
+        int64_info = np.iinfo(np.int64)
+        max_int64 = int64_info.max
+        max_int64_index = max_int64 // int64_info.dtype.itemsize
+        assert_raises(ValueError, random.multivariate_hypergeometric,
+                      [max_int64_index - 100, 101], 5, 1, 'count')
+
+    @pytest.mark.parametrize('method', ['count', 'marginals'])
+    def test_edge_cases(self, method):
+        # Set the seed, but in fact, all the results in this test are
+        # deterministic, so we don't really need this.
+        random = Generator(MT19937(self.seed))
+
+        x = random.multivariate_hypergeometric([0, 0, 0], 0, method=method)
+        assert_array_equal(x, [0, 0, 0])
+
+        x = random.multivariate_hypergeometric([], 0, method=method)
+        assert_array_equal(x, [])
+
+        x = random.multivariate_hypergeometric([], 0, size=1, method=method)
+        assert_array_equal(x, np.empty((1, 0), dtype=np.int64))
+
+        x = random.multivariate_hypergeometric([1, 2, 3], 0, method=method)
+        assert_array_equal(x, [0, 0, 0])
+
+        x = random.multivariate_hypergeometric([9, 0, 0], 3, method=method)
+        assert_array_equal(x, [3, 0, 0])
+
+        colors = [1, 1, 0, 1, 1]
+        x = random.multivariate_hypergeometric(colors, sum(colors),
+                                               method=method)
+        assert_array_equal(x, colors)
+
+        x = random.multivariate_hypergeometric([3, 4, 5], 12, size=3,
+                                               method=method)
+        assert_array_equal(x, [[3, 4, 5]] * 3)
+
+    # Cases for nsample:
+    #     nsample < 10
+    #     10 <= nsample < colors.sum()/2
+    #     colors.sum()/2 < nsample < colors.sum() - 10
+    #     colors.sum() - 10 < nsample < colors.sum()
+    @pytest.mark.parametrize('nsample', [8, 25, 45, 55])
+    @pytest.mark.parametrize('method', ['count', 'marginals'])
+    @pytest.mark.parametrize('size', [5, (2, 3), 150000])
+    def test_typical_cases(self, nsample, method, size):
+        random = Generator(MT19937(self.seed))
+
+        colors = np.array([10, 5, 20, 25])
+        sample = random.multivariate_hypergeometric(colors, nsample, size,
+                                                    method=method)
+        if isinstance(size, int):
+            expected_shape = (size,) + colors.shape
+        else:
+            expected_shape = size + colors.shape
+        assert_equal(sample.shape, expected_shape)
+        assert_((sample >= 0).all())
+        assert_((sample <= colors).all())
+        assert_array_equal(sample.sum(axis=-1),
+                           np.full(size, fill_value=nsample, dtype=int))
+        if isinstance(size, int) and size >= 100000:
+            # This sample is large enough to compare its mean to
+            # the expected values.
+            assert_allclose(sample.mean(axis=0),
+                            nsample * colors / colors.sum(),
+                            rtol=1e-3, atol=0.005)
+
+    def test_repeatability1(self):
+        random = Generator(MT19937(self.seed))
+        sample = random.multivariate_hypergeometric([3, 4, 5], 5, size=5,
+                                                    method='count')
+        expected = np.array([[2, 1, 2],
+                             [2, 1, 2],
+                             [1, 1, 3],
+                             [2, 0, 3],
+                             [2, 1, 2]])
+        assert_array_equal(sample, expected)
+
+    def test_repeatability2(self):
+        random = Generator(MT19937(self.seed))
+        sample = random.multivariate_hypergeometric([20, 30, 50], 50,
+                                                    size=5,
+                                                    method='marginals')
+        expected = np.array([[ 9, 17, 24],
+                             [ 7, 13, 30],
+                             [ 9, 15, 26],
+                             [ 9, 17, 24],
+                             [12, 14, 24]])
+        assert_array_equal(sample, expected)
+
+    def test_repeatability3(self):
+        random = Generator(MT19937(self.seed))
+        sample = random.multivariate_hypergeometric([20, 30, 50], 12,
+                                                    size=5,
+                                                    method='marginals')
+        expected = np.array([[2, 3, 7],
+                             [5, 3, 4],
+                             [2, 5, 5],
+                             [5, 3, 4],
+                             [1, 5, 6]])
+        assert_array_equal(sample, expected)
+
+
+class TestSetState:
+    def _create_rng(self):
+        seed = 1234567890
+        rg = Generator(MT19937(seed))
+        bit_generator = rg.bit_generator
+        state = bit_generator.state
+        legacy_state = (state['bit_generator'],
+                        state['state']['key'],
+                        state['state']['pos'])
+        return rg, bit_generator, state
+
+    def test_gaussian_reset(self):
+        # Make sure the cached every-other-Gaussian is reset.
+        rg, bit_generator, state = self._create_rng()
+        old = rg.standard_normal(size=3)
+        bit_generator.state = state
+        new = rg.standard_normal(size=3)
+        assert_(np.all(old == new))
+
+    def test_gaussian_reset_in_media_res(self):
+        # When the state is saved with a cached Gaussian, make sure the
+        # cached Gaussian is restored.
+        rg, bit_generator, state = self._create_rng()
+        rg.standard_normal()
+        state = bit_generator.state
+        old = rg.standard_normal(size=3)
+        bit_generator.state = state
+        new = rg.standard_normal(size=3)
+        assert_(np.all(old == new))
+
+    def test_negative_binomial(self):
+        # Ensure that the negative binomial results take floating point
+        # arguments without truncation.
+        rg, _, _ = self._create_rng()
+        rg.negative_binomial(0.5, 0.5)
+
+
+class TestIntegers:
+    rfunc = random.integers
+
+    # valid integer/boolean types
+    itype = [bool, np.int8, np.uint8, np.int16, np.uint16,
+             np.int32, np.uint32, np.int64, np.uint64]
+
+    def test_unsupported_type(self, endpoint):
+        assert_raises(TypeError, self.rfunc, 1, endpoint=endpoint, dtype=float)
+
+    def test_bounds_checking(self, endpoint):
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+            assert_raises(ValueError, self.rfunc, lbnd - 1, ubnd,
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, lbnd, ubnd + 1,
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, ubnd, lbnd,
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, 1, 0, endpoint=endpoint,
+                          dtype=dt)
+
+            assert_raises(ValueError, self.rfunc, [lbnd - 1], ubnd,
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, [lbnd], [ubnd + 1],
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, [ubnd], [lbnd],
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, 1, [0],
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, [ubnd + 1], [ubnd],
+                          endpoint=endpoint, dtype=dt)
+
+    def test_bounds_checking_array(self, endpoint):
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + (not endpoint)
+
+            assert_raises(ValueError, self.rfunc, [lbnd - 1] * 2, [ubnd] * 2,
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, [lbnd] * 2,
+                          [ubnd + 1] * 2, endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, ubnd, [lbnd] * 2,
+                          endpoint=endpoint, dtype=dt)
+            assert_raises(ValueError, self.rfunc, [1] * 2, 0,
+                          endpoint=endpoint, dtype=dt)
+
+    def test_rng_zero_and_extremes(self, endpoint):
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+            is_open = not endpoint
+
+            tgt = ubnd - 1
+            assert_equal(self.rfunc(tgt, tgt + is_open, size=1000,
+                                    endpoint=endpoint, dtype=dt), tgt)
+            assert_equal(self.rfunc([tgt], tgt + is_open, size=1000,
+                                    endpoint=endpoint, dtype=dt), tgt)
+
+            tgt = lbnd
+            assert_equal(self.rfunc(tgt, tgt + is_open, size=1000,
+                                    endpoint=endpoint, dtype=dt), tgt)
+            assert_equal(self.rfunc(tgt, [tgt + is_open], size=1000,
+                                    endpoint=endpoint, dtype=dt), tgt)
+
+            tgt = (lbnd + ubnd) // 2
+            assert_equal(self.rfunc(tgt, tgt + is_open, size=1000,
+                                    endpoint=endpoint, dtype=dt), tgt)
+            assert_equal(self.rfunc([tgt], [tgt + is_open],
+                                    size=1000, endpoint=endpoint, dtype=dt),
+                         tgt)
+
+    def test_rng_zero_and_extremes_array(self, endpoint):
+        size = 1000
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+
+            tgt = ubnd - 1
+            assert_equal(self.rfunc([tgt], [tgt + 1],
+                                    size=size, dtype=dt), tgt)
+            assert_equal(self.rfunc(
+                [tgt] * size, [tgt + 1] * size, dtype=dt), tgt)
+            assert_equal(self.rfunc(
+                [tgt] * size, [tgt + 1] * size, size=size, dtype=dt), tgt)
+
+            tgt = lbnd
+            assert_equal(self.rfunc([tgt], [tgt + 1],
+                                    size=size, dtype=dt), tgt)
+            assert_equal(self.rfunc(
+                [tgt] * size, [tgt + 1] * size, dtype=dt), tgt)
+            assert_equal(self.rfunc(
+                [tgt] * size, [tgt + 1] * size, size=size, dtype=dt), tgt)
+
+            tgt = (lbnd + ubnd) // 2
+            assert_equal(self.rfunc([tgt], [tgt + 1],
+                                    size=size, dtype=dt), tgt)
+            assert_equal(self.rfunc(
+                [tgt] * size, [tgt + 1] * size, dtype=dt), tgt)
+            assert_equal(self.rfunc(
+                [tgt] * size, [tgt + 1] * size, size=size, dtype=dt), tgt)
+
+    def test_full_range(self, endpoint):
+        # Test for ticket #1690
+
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+
+            try:
+                self.rfunc(lbnd, ubnd, endpoint=endpoint, dtype=dt)
+            except Exception as e:
+                raise AssertionError("No error should have been raised, "
+                                     "but one was with the following "
+                                     "message:\n\n%s" % str(e))
+
+    def test_full_range_array(self, endpoint):
+        # Test for ticket #1690
+
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+
+            try:
+                self.rfunc([lbnd] * 2, [ubnd], endpoint=endpoint, dtype=dt)
+            except Exception as e:
+                raise AssertionError("No error should have been raised, "
+                                     "but one was with the following "
+                                     "message:\n\n%s" % str(e))
+
+    def test_in_bounds_fuzz(self, endpoint):
+        # Don't use fixed seed
+        random = Generator(MT19937())
+
+        for dt in self.itype[1:]:
+            for ubnd in [4, 8, 16]:
+                vals = self.rfunc(2, ubnd - endpoint, size=2 ** 16,
+                                  endpoint=endpoint, dtype=dt)
+                assert_(vals.max() < ubnd)
+                assert_(vals.min() >= 2)
+
+        vals = self.rfunc(0, 2 - endpoint, size=2 ** 16, endpoint=endpoint,
+                          dtype=bool)
+        assert_(vals.max() < 2)
+        assert_(vals.min() >= 0)
+
+    def test_scalar_array_equiv(self, endpoint):
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+
+            size = 1000
+            random = Generator(MT19937(1234))
+            scalar = random.integers(lbnd, ubnd, size=size, endpoint=endpoint,
+                                dtype=dt)
+
+            random = Generator(MT19937(1234))
+            scalar_array = random.integers([lbnd], [ubnd], size=size,
+                                      endpoint=endpoint, dtype=dt)
+
+            random = Generator(MT19937(1234))
+            array = random.integers([lbnd] * size, [ubnd] *
+                               size, size=size, endpoint=endpoint, dtype=dt)
+            assert_array_equal(scalar, scalar_array)
+            assert_array_equal(scalar, array)
+
+    def test_repeatability(self, endpoint):
+        # We use a sha256 hash of generated sequences of 1000 samples
+        # in the range [0, 6) for all but bool, where the range
+        # is [0, 2). Hashes are for little endian numbers.
+        tgt = {'bool':   '053594a9b82d656f967c54869bc6970aa0358cf94ad469c81478459c6a90eee3',  # noqa: E501
+               'int16':  '54de9072b6ee9ff7f20b58329556a46a447a8a29d67db51201bf88baa6e4e5d4',  # noqa: E501
+               'int32':  'd3a0d5efb04542b25ac712e50d21f39ac30f312a5052e9bbb1ad3baa791ac84b',  # noqa: E501
+               'int64':  '14e224389ac4580bfbdccb5697d6190b496f91227cf67df60989de3d546389b1',  # noqa: E501
+               'int8':   '0e203226ff3fbbd1580f15da4621e5f7164d0d8d6b51696dd42d004ece2cbec1',  # noqa: E501
+               'uint16': '54de9072b6ee9ff7f20b58329556a46a447a8a29d67db51201bf88baa6e4e5d4',  # noqa: E501
+               'uint32': 'd3a0d5efb04542b25ac712e50d21f39ac30f312a5052e9bbb1ad3baa791ac84b',  # noqa: E501
+               'uint64': '14e224389ac4580bfbdccb5697d6190b496f91227cf67df60989de3d546389b1',  # noqa: E501
+               'uint8':  '0e203226ff3fbbd1580f15da4621e5f7164d0d8d6b51696dd42d004ece2cbec1'}  # noqa: E501
+
+        for dt in self.itype[1:]:
+            random = Generator(MT19937(1234))
+
+            # view as little endian for hash
+            if sys.byteorder == 'little':
+                val = random.integers(0, 6 - endpoint, size=1000, endpoint=endpoint,
+                                 dtype=dt)
+            else:
+                val = random.integers(0, 6 - endpoint, size=1000, endpoint=endpoint,
+                                 dtype=dt).byteswap()
+
+            res = hashlib.sha256(val).hexdigest()
+            assert_(tgt[np.dtype(dt).name] == res)
+
+        # bools do not depend on endianness
+        random = Generator(MT19937(1234))
+        val = random.integers(0, 2 - endpoint, size=1000, endpoint=endpoint,
+                         dtype=bool).view(np.int8)
+        res = hashlib.sha256(val).hexdigest()
+        assert_(tgt[np.dtype(bool).name] == res)
+
+    def test_repeatability_broadcasting(self, endpoint):
+        for dt in self.itype:
+            lbnd = 0 if dt in (bool, np.bool) else np.iinfo(dt).min
+            ubnd = 2 if dt in (bool, np.bool) else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+
+            # view as little endian for hash
+            random = Generator(MT19937(1234))
+            val = random.integers(lbnd, ubnd, size=1000, endpoint=endpoint,
+                             dtype=dt)
+
+            random = Generator(MT19937(1234))
+            val_bc = random.integers([lbnd] * 1000, ubnd, endpoint=endpoint,
+                                dtype=dt)
+
+            assert_array_equal(val, val_bc)
+
+            random = Generator(MT19937(1234))
+            val_bc = random.integers([lbnd] * 1000, [ubnd] * 1000,
+                                endpoint=endpoint, dtype=dt)
+
+            assert_array_equal(val, val_bc)
+
+    @pytest.mark.parametrize(
+        'bound, expected',
+        [(2**32 - 1, np.array([517043486, 1364798665, 1733884389, 1353720612,
+                               3769704066, 1170797179, 4108474671])),
+         (2**32, np.array([517043487, 1364798666, 1733884390, 1353720613,
+                           3769704067, 1170797180, 4108474672])),
+         (2**32 + 1, np.array([517043487, 1733884390, 3769704068, 4108474673,
+                               1831631863, 1215661561, 3869512430]))]
+    )
+    def test_repeatability_32bit_boundary(self, bound, expected):
+        for size in [None, len(expected)]:
+            random = Generator(MT19937(1234))
+            x = random.integers(bound, size=size)
+            assert_equal(x, expected if size is not None else expected[0])
+
+    def test_repeatability_32bit_boundary_broadcasting(self):
+        desired = np.array([[[1622936284, 3620788691, 1659384060],
+                             [1417365545,  760222891, 1909653332],
+                             [3788118662,  660249498, 4092002593]],
+                            [[3625610153, 2979601262, 3844162757],
+                             [ 685800658,  120261497, 2694012896],
+                             [1207779440, 1586594375, 3854335050]],
+                            [[3004074748, 2310761796, 3012642217],
+                             [2067714190, 2786677879, 1363865881],
+                             [ 791663441, 1867303284, 2169727960]],
+                            [[1939603804, 1250951100,  298950036],
+                             [1040128489, 3791912209, 3317053765],
+                             [3155528714,   61360675, 2305155588]],
+                            [[ 817688762, 1335621943, 3288952434],
+                             [1770890872, 1102951817, 1957607470],
+                             [3099996017,  798043451,   48334215]]])
+        for size in [None, (5, 3, 3)]:
+            random = Generator(MT19937(12345))
+            x = random.integers([[-1], [0], [1]],
+                                [2**32 - 1, 2**32, 2**32 + 1],
+                                size=size)
+            assert_array_equal(x, desired if size is not None else desired[0])
+
+    def test_int64_uint64_broadcast_exceptions(self, endpoint):
+        configs = {np.uint64: ((0, 2**65), (-1, 2**62), (10, 9), (0, 0)),
+                   np.int64: ((0, 2**64), (-(2**64), 2**62), (10, 9), (0, 0),
+                              (-2**63 - 1, -2**63 - 1))}
+        for dtype in configs:
+            for config in configs[dtype]:
+                low, high = config
+                high = high - endpoint
+                low_a = np.array([[low] * 10])
+                high_a = np.array([high] * 10)
+                assert_raises(ValueError, random.integers, low, high,
+                              endpoint=endpoint, dtype=dtype)
+                assert_raises(ValueError, random.integers, low_a, high,
+                              endpoint=endpoint, dtype=dtype)
+                assert_raises(ValueError, random.integers, low, high_a,
+                              endpoint=endpoint, dtype=dtype)
+                assert_raises(ValueError, random.integers, low_a, high_a,
+                              endpoint=endpoint, dtype=dtype)
+
+                low_o = np.array([[low] * 10], dtype=object)
+                high_o = np.array([high] * 10, dtype=object)
+                assert_raises(ValueError, random.integers, low_o, high,
+                              endpoint=endpoint, dtype=dtype)
+                assert_raises(ValueError, random.integers, low, high_o,
+                              endpoint=endpoint, dtype=dtype)
+                assert_raises(ValueError, random.integers, low_o, high_o,
+                              endpoint=endpoint, dtype=dtype)
+
+    def test_int64_uint64_corner_case(self, endpoint):
+        # When stored in Numpy arrays, `lbnd` is casted
+        # as np.int64, and `ubnd` is casted as np.uint64.
+        # Checking whether `lbnd` >= `ubnd` used to be
+        # done solely via direct comparison, which is incorrect
+        # because when Numpy tries to compare both numbers,
+        # it casts both to np.float64 because there is
+        # no integer superset of np.int64 and np.uint64. However,
+        # `ubnd` is too large to be represented in np.float64,
+        # causing it be round down to np.iinfo(np.int64).max,
+        # leading to a ValueError because `lbnd` now equals
+        # the new `ubnd`.
+
+        dt = np.int64
+        tgt = np.iinfo(np.int64).max
+        lbnd = np.int64(np.iinfo(np.int64).max)
+        ubnd = np.uint64(np.iinfo(np.int64).max + 1 - endpoint)
+
+        # None of these function calls should
+        # generate a ValueError now.
+        actual = random.integers(lbnd, ubnd, endpoint=endpoint, dtype=dt)
+        assert_equal(actual, tgt)
+
+    def test_respect_dtype_singleton(self, endpoint):
+        # See gh-7203
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+            dt = np.bool if dt is bool else dt
+
+            sample = self.rfunc(lbnd, ubnd, endpoint=endpoint, dtype=dt)
+            assert_equal(sample.dtype, dt)
+
+        for dt in (bool, int):
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+
+            # gh-7284: Ensure that we get Python data types
+            sample = self.rfunc(lbnd, ubnd, endpoint=endpoint, dtype=dt)
+            assert not hasattr(sample, 'dtype')
+            assert_equal(type(sample), dt)
+
+    def test_respect_dtype_array(self, endpoint):
+        # See gh-7203
+        for dt in self.itype:
+            lbnd = 0 if dt is bool else np.iinfo(dt).min
+            ubnd = 2 if dt is bool else np.iinfo(dt).max + 1
+            ubnd = ubnd - 1 if endpoint else ubnd
+            dt = np.bool if dt is bool else dt
+
+            sample = self.rfunc([lbnd], [ubnd], endpoint=endpoint, dtype=dt)
+            assert_equal(sample.dtype, dt)
+            sample = self.rfunc([lbnd] * 2, [ubnd] * 2, endpoint=endpoint,
+                                dtype=dt)
+            assert_equal(sample.dtype, dt)
+
+    def test_zero_size(self, endpoint):
+        # See gh-7203
+        for dt in self.itype:
+            sample = self.rfunc(0, 0, (3, 0, 4), endpoint=endpoint, dtype=dt)
+            assert sample.shape == (3, 0, 4)
+            assert sample.dtype == dt
+            assert self.rfunc(0, -10, 0, endpoint=endpoint,
+                              dtype=dt).shape == (0,)
+            assert_equal(random.integers(0, 0, size=(3, 0, 4)).shape,
+                         (3, 0, 4))
+            assert_equal(random.integers(0, -10, size=0).shape, (0,))
+            assert_equal(random.integers(10, 10, size=0).shape, (0,))
+
+    def test_error_byteorder(self):
+        other_byteord_dt = '<i4' if sys.byteorder == 'big' else '>i4'
+        with pytest.raises(ValueError):
+            random.integers(0, 200, size=10, dtype=other_byteord_dt)
+
+    # chi2max is the maximum acceptable chi-squared value.
+    @pytest.mark.slow
+    @pytest.mark.parametrize('sample_size,high,dtype,chi2max',
+        [(5000000, 5, np.int8, 125.0),          # p-value ~4.6e-25
+         (5000000, 7, np.uint8, 150.0),         # p-value ~7.7e-30
+         (10000000, 2500, np.int16, 3300.0),    # p-value ~3.0e-25
+         (50000000, 5000, np.uint16, 6500.0),   # p-value ~3.5e-25
+        ])
+    def test_integers_small_dtype_chisquared(self, sample_size, high,
+                                             dtype, chi2max):
+        # Regression test for gh-14774.
+        samples = random.integers(high, size=sample_size, dtype=dtype)
+
+        values, counts = np.unique(samples, return_counts=True)
+        expected = sample_size / high
+        chi2 = ((counts - expected)**2 / expected).sum()
+        assert chi2 < chi2max
+
+
+class TestRandomDist:
+    # Make sure the random distribution returns the correct value for a
+    # given seed
+    seed = 1234567890
+
+    def test_integers(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.integers(-99, 99, size=(3, 2))
+        desired = np.array([[-80, -56], [41, 37], [-83, -16]])
+        assert_array_equal(actual, desired)
+
+    def test_integers_masked(self):
+        # Test masked rejection sampling algorithm to generate array of
+        # uint32 in an interval.
+        random = Generator(MT19937(self.seed))
+        actual = random.integers(0, 99, size=(3, 2), dtype=np.uint32)
+        desired = np.array([[9, 21], [70, 68], [8, 41]], dtype=np.uint32)
+        assert_array_equal(actual, desired)
+
+    def test_integers_closed(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.integers(-99, 99, size=(3, 2), endpoint=True)
+        desired = np.array([[-80, -56], [41, 38], [-83, -15]])
+        assert_array_equal(actual, desired)
+
+    def test_integers_max_int(self):
+        # Tests whether integers with closed=True can generate the
+        # maximum allowed Python int that can be converted
+        # into a C long. Previous implementations of this
+        # method have thrown an OverflowError when attempting
+        # to generate this integer.
+        actual = random.integers(np.iinfo('l').max, np.iinfo('l').max,
+                                 endpoint=True)
+
+        desired = np.iinfo('l').max
+        assert_equal(actual, desired)
+
+    def test_random(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.random((3, 2))
+        desired = np.array([[0.096999199829214, 0.707517457682192],
+                            [0.084364834598269, 0.767731206553125],
+                            [0.665069021359413, 0.715487190596693]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.random()
+        assert_array_almost_equal(actual, desired[0, 0], decimal=15)
+
+    def test_random_float(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.random((3, 2))
+        desired = np.array([[0.0969992 , 0.70751746],  # noqa: E203
+                            [0.08436483, 0.76773121],
+                            [0.66506902, 0.71548719]])
+        assert_array_almost_equal(actual, desired, decimal=7)
+
+    def test_random_float_scalar(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.random(dtype=np.float32)
+        desired = 0.0969992
+        assert_array_almost_equal(actual, desired, decimal=7)
+
+    @pytest.mark.parametrize('dtype, uint_view_type',
+                             [(np.float32, np.uint32),
+                              (np.float64, np.uint64)])
+    def test_random_distribution_of_lsb(self, dtype, uint_view_type):
+        random = Generator(MT19937(self.seed))
+        sample = random.random(100000, dtype=dtype)
+        num_ones_in_lsb = np.count_nonzero(sample.view(uint_view_type) & 1)
+        # The probability of a 1 in the least significant bit is 0.25.
+        # With a sample size of 100000, the probability that num_ones_in_lsb
+        # is outside the following range is less than 5e-11.
+        assert 24100 < num_ones_in_lsb < 25900
+
+    def test_random_unsupported_type(self):
+        assert_raises(TypeError, random.random, dtype='int32')
+
+    def test_choice_uniform_replace(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice(4, 4)
+        desired = np.array([0, 0, 2, 2], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+    def test_choice_nonuniform_replace(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice(4, 4, p=[0.4, 0.4, 0.1, 0.1])
+        desired = np.array([0, 1, 0, 1], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+    def test_choice_uniform_noreplace(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice(4, 3, replace=False)
+        desired = np.array([2, 0, 3], dtype=np.int64)
+        assert_array_equal(actual, desired)
+        actual = random.choice(4, 4, replace=False, shuffle=False)
+        desired = np.arange(4, dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+    def test_choice_nonuniform_noreplace(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice(4, 3, replace=False, p=[0.1, 0.3, 0.5, 0.1])
+        desired = np.array([0, 2, 3], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+    def test_choice_noninteger(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice(['a', 'b', 'c', 'd'], 4)
+        desired = np.array(['a', 'a', 'c', 'c'])
+        assert_array_equal(actual, desired)
+
+    def test_choice_multidimensional_default_axis(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice([[0, 1], [2, 3], [4, 5], [6, 7]], 3)
+        desired = np.array([[0, 1], [0, 1], [4, 5]])
+        assert_array_equal(actual, desired)
+
+    def test_choice_multidimensional_custom_axis(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.choice([[0, 1], [2, 3], [4, 5], [6, 7]], 1, axis=1)
+        desired = np.array([[0], [2], [4], [6]])
+        assert_array_equal(actual, desired)
+
+    def test_choice_exceptions(self):
+        sample = random.choice
+        assert_raises(ValueError, sample, -1, 3)
+        assert_raises(ValueError, sample, 3., 3)
+        assert_raises(ValueError, sample, [], 3)
+        assert_raises(ValueError, sample, [1, 2, 3, 4], 3,
+                      p=[[0.25, 0.25], [0.25, 0.25]])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[0.4, 0.4, 0.2])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[1.1, -0.1])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[0.4, 0.4])
+        assert_raises(ValueError, sample, [1, 2, 3], 4, replace=False)
+        # gh-13087
+        assert_raises(ValueError, sample, [1, 2, 3], -2, replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], (-1,), replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], (-1, 1), replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], 2,
+                      replace=False, p=[1, 0, 0])
+
+    def test_choice_return_shape(self):
+        p = [0.1, 0.9]
+        # Check scalar
+        assert_(np.isscalar(random.choice(2, replace=True)))
+        assert_(np.isscalar(random.choice(2, replace=False)))
+        assert_(np.isscalar(random.choice(2, replace=True, p=p)))
+        assert_(np.isscalar(random.choice(2, replace=False, p=p)))
+        assert_(np.isscalar(random.choice([1, 2], replace=True)))
+        assert_(random.choice([None], replace=True) is None)
+        a = np.array([1, 2])
+        arr = np.empty(1, dtype=object)
+        arr[0] = a
+        assert_(random.choice(arr, replace=True) is a)
+
+        # Check 0-d array
+        s = ()
+        assert_(not np.isscalar(random.choice(2, s, replace=True)))
+        assert_(not np.isscalar(random.choice(2, s, replace=False)))
+        assert_(not np.isscalar(random.choice(2, s, replace=True, p=p)))
+        assert_(not np.isscalar(random.choice(2, s, replace=False, p=p)))
+        assert_(not np.isscalar(random.choice([1, 2], s, replace=True)))
+        assert_(random.choice([None], s, replace=True).ndim == 0)
+        a = np.array([1, 2])
+        arr = np.empty(1, dtype=object)
+        arr[0] = a
+        assert_(random.choice(arr, s, replace=True).item() is a)
+
+        # Check multi dimensional array
+        s = (2, 3)
+        p = [0.1, 0.1, 0.1, 0.1, 0.4, 0.2]
+        assert_equal(random.choice(6, s, replace=True).shape, s)
+        assert_equal(random.choice(6, s, replace=False).shape, s)
+        assert_equal(random.choice(6, s, replace=True, p=p).shape, s)
+        assert_equal(random.choice(6, s, replace=False, p=p).shape, s)
+        assert_equal(random.choice(np.arange(6), s, replace=True).shape, s)
+
+        # Check zero-size
+        assert_equal(random.integers(0, 0, size=(3, 0, 4)).shape, (3, 0, 4))
+        assert_equal(random.integers(0, -10, size=0).shape, (0,))
+        assert_equal(random.integers(10, 10, size=0).shape, (0,))
+        assert_equal(random.choice(0, size=0).shape, (0,))
+        assert_equal(random.choice([], size=(0,)).shape, (0,))
+        assert_equal(random.choice(['a', 'b'], size=(3, 0, 4)).shape,
+                     (3, 0, 4))
+        assert_raises(ValueError, random.choice, [], 10)
+
+    def test_choice_nan_probabilities(self):
+        a = np.array([42, 1, 2])
+        p = [None, None, None]
+        assert_raises(ValueError, random.choice, a, p=p)
+
+    def test_choice_p_non_contiguous(self):
+        p = np.ones(10) / 5
+        p[1::2] = 3.0
+        random = Generator(MT19937(self.seed))
+        non_contig = random.choice(5, 3, p=p[::2])
+        random = Generator(MT19937(self.seed))
+        contig = random.choice(5, 3, p=np.ascontiguousarray(p[::2]))
+        assert_array_equal(non_contig, contig)
+
+    def test_choice_return_type(self):
+        # gh 9867
+        p = np.ones(4) / 4.
+        actual = random.choice(4, 2)
+        assert actual.dtype == np.int64
+        actual = random.choice(4, 2, replace=False)
+        assert actual.dtype == np.int64
+        actual = random.choice(4, 2, p=p)
+        assert actual.dtype == np.int64
+        actual = random.choice(4, 2, p=p, replace=False)
+        assert actual.dtype == np.int64
+
+    def test_choice_large_sample(self):
+        choice_hash = '4266599d12bfcfb815213303432341c06b4349f5455890446578877bb322e222'
+        random = Generator(MT19937(self.seed))
+        actual = random.choice(10000, 5000, replace=False)
+        if sys.byteorder != 'little':
+            actual = actual.byteswap()
+        res = hashlib.sha256(actual.view(np.int8)).hexdigest()
+        assert_(choice_hash == res)
+
+    def test_choice_array_size_empty_tuple(self):
+        random = Generator(MT19937(self.seed))
+        assert_array_equal(random.choice([1, 2, 3], size=()), np.array(1),
+                           strict=True)
+        assert_array_equal(random.choice([[1, 2, 3]], size=()), [1, 2, 3])
+        assert_array_equal(random.choice([[1]], size=()), [1], strict=True)
+        assert_array_equal(random.choice([[1]], size=(), axis=1), [1],
+                           strict=True)
+
+    def test_bytes(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.bytes(10)
+        desired = b'\x86\xf0\xd4\x18\xe1\x81\t8%\xdd'
+        assert_equal(actual, desired)
+
+    def test_shuffle(self):
+        # Test lists, arrays (of various dtypes), and multidimensional versions
+        # of both, c-contiguous or not:
+        for conv in [lambda x: np.array([]),
+                     lambda x: x,
+                     lambda x: np.asarray(x).astype(np.int8),
+                     lambda x: np.asarray(x).astype(np.float32),
+                     lambda x: np.asarray(x).astype(np.complex64),
+                     lambda x: np.asarray(x).astype(object),
+                     lambda x: [(i, i) for i in x],
+                     lambda x: np.asarray([[i, i] for i in x]),
+                     lambda x: np.vstack([x, x]).T,
+                     # gh-11442
+                     lambda x: (np.asarray([(i, i) for i in x],
+                                           [("a", int), ("b", int)])
+                                .view(np.recarray)),
+                     # gh-4270
+                     lambda x: np.asarray([(i, i) for i in x],
+                                          [("a", object, (1,)),
+                                           ("b", np.int32, (1,))])]:
+            random = Generator(MT19937(self.seed))
+            alist = conv([1, 2, 3, 4, 5, 6, 7, 8, 9, 0])
+            random.shuffle(alist)
+            actual = alist
+            desired = conv([4, 1, 9, 8, 0, 5, 3, 6, 2, 7])
+            assert_array_equal(actual, desired)
+
+    def test_shuffle_custom_axis(self):
+        random = Generator(MT19937(self.seed))
+        actual = np.arange(16).reshape((4, 4))
+        random.shuffle(actual, axis=1)
+        desired = np.array([[ 0,  3,  1,  2],
+                            [ 4,  7,  5,  6],
+                            [ 8, 11,  9, 10],
+                            [12, 15, 13, 14]])
+        assert_array_equal(actual, desired)
+        random = Generator(MT19937(self.seed))
+        actual = np.arange(16).reshape((4, 4))
+        random.shuffle(actual, axis=-1)
+        assert_array_equal(actual, desired)
+
+    def test_shuffle_custom_axis_empty(self):
+        random = Generator(MT19937(self.seed))
+        desired = np.array([]).reshape((0, 6))
+        for axis in (0, 1):
+            actual = np.array([]).reshape((0, 6))
+            random.shuffle(actual, axis=axis)
+            assert_array_equal(actual, desired)
+
+    def test_shuffle_axis_nonsquare(self):
+        y1 = np.arange(20).reshape(2, 10)
+        y2 = y1.copy()
+        random = Generator(MT19937(self.seed))
+        random.shuffle(y1, axis=1)
+        random = Generator(MT19937(self.seed))
+        random.shuffle(y2.T)
+        assert_array_equal(y1, y2)
+
+    def test_shuffle_masked(self):
+        # gh-3263
+        a = np.ma.masked_values(np.reshape(range(20), (5, 4)) % 3 - 1, -1)
+        b = np.ma.masked_values(np.arange(20) % 3 - 1, -1)
+        a_orig = a.copy()
+        b_orig = b.copy()
+        for i in range(50):
+            random.shuffle(a)
+            assert_equal(
+                sorted(a.data[~a.mask]), sorted(a_orig.data[~a_orig.mask]))
+            random.shuffle(b)
+            assert_equal(
+                sorted(b.data[~b.mask]), sorted(b_orig.data[~b_orig.mask]))
+
+    def test_shuffle_exceptions(self):
+        random = Generator(MT19937(self.seed))
+        arr = np.arange(10)
+        assert_raises(AxisError, random.shuffle, arr, 1)
+        arr = np.arange(9).reshape((3, 3))
+        assert_raises(AxisError, random.shuffle, arr, 3)
+        assert_raises(TypeError, random.shuffle, arr, slice(1, 2, None))
+        arr = [[1, 2, 3], [4, 5, 6]]
+        assert_raises(NotImplementedError, random.shuffle, arr, 1)
+
+        arr = np.array(3)
+        assert_raises(TypeError, random.shuffle, arr)
+        arr = np.ones((3, 2))
+        assert_raises(AxisError, random.shuffle, arr, 2)
+
+    def test_shuffle_not_writeable(self):
+        random = Generator(MT19937(self.seed))
+        a = np.zeros(5)
+        a.flags.writeable = False
+        with pytest.raises(ValueError, match='read-only'):
+            random.shuffle(a)
+
+    def test_permutation(self):
+        random = Generator(MT19937(self.seed))
+        alist = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
+        actual = random.permutation(alist)
+        desired = [4, 1, 9, 8, 0, 5, 3, 6, 2, 7]
+        assert_array_equal(actual, desired)
+
+        random = Generator(MT19937(self.seed))
+        arr_2d = np.atleast_2d([1, 2, 3, 4, 5, 6, 7, 8, 9, 0]).T
+        actual = random.permutation(arr_2d)
+        assert_array_equal(actual, np.atleast_2d(desired).T)
+
+        bad_x_str = "abcd"
+        assert_raises(AxisError, random.permutation, bad_x_str)
+
+        bad_x_float = 1.2
+        assert_raises(AxisError, random.permutation, bad_x_float)
+
+        random = Generator(MT19937(self.seed))
+        integer_val = 10
+        desired = [3, 0, 8, 7, 9, 4, 2, 5, 1, 6]
+
+        actual = random.permutation(integer_val)
+        assert_array_equal(actual, desired)
+
+    def test_permutation_custom_axis(self):
+        a = np.arange(16).reshape((4, 4))
+        desired = np.array([[ 0,  3,  1,  2],
+                            [ 4,  7,  5,  6],
+                            [ 8, 11,  9, 10],
+                            [12, 15, 13, 14]])
+        random = Generator(MT19937(self.seed))
+        actual = random.permutation(a, axis=1)
+        assert_array_equal(actual, desired)
+        random = Generator(MT19937(self.seed))
+        actual = random.permutation(a, axis=-1)
+        assert_array_equal(actual, desired)
+
+    def test_permutation_exceptions(self):
+        random = Generator(MT19937(self.seed))
+        arr = np.arange(10)
+        assert_raises(AxisError, random.permutation, arr, 1)
+        arr = np.arange(9).reshape((3, 3))
+        assert_raises(AxisError, random.permutation, arr, 3)
+        assert_raises(TypeError, random.permutation, arr, slice(1, 2, None))
+
+    @pytest.mark.parametrize("dtype", [int, object])
+    @pytest.mark.parametrize("axis, expected",
+                             [(None, np.array([[3, 7, 0, 9, 10, 11],
+                                               [8, 4, 2, 5,  1,  6]])),
+                              (0, np.array([[6, 1, 2, 9, 10, 11],
+                                            [0, 7, 8, 3,  4,  5]])),
+                              (1, np.array([[ 5, 3,  4, 0, 2, 1],
+                                            [11, 9, 10, 6, 8, 7]]))])
+    def test_permuted(self, dtype, axis, expected):
+        random = Generator(MT19937(self.seed))
+        x = np.arange(12).reshape(2, 6).astype(dtype)
+        random.permuted(x, axis=axis, out=x)
+        assert_array_equal(x, expected)
+
+        random = Generator(MT19937(self.seed))
+        x = np.arange(12).reshape(2, 6).astype(dtype)
+        y = random.permuted(x, axis=axis)
+        assert y.dtype == dtype
+        assert_array_equal(y, expected)
+
+    def test_permuted_with_strides(self):
+        random = Generator(MT19937(self.seed))
+        x0 = np.arange(22).reshape(2, 11)
+        x1 = x0.copy()
+        x = x0[:, ::3]
+        y = random.permuted(x, axis=1, out=x)
+        expected = np.array([[0, 9, 3, 6],
+                             [14, 20, 11, 17]])
+        assert_array_equal(y, expected)
+        x1[:, ::3] = expected
+        # Verify that the original x0 was modified in-place as expected.
+        assert_array_equal(x1, x0)
+
+    def test_permuted_empty(self):
+        y = random.permuted([])
+        assert_array_equal(y, [])
+
+    @pytest.mark.parametrize('outshape', [(2, 3), 5])
+    def test_permuted_out_with_wrong_shape(self, outshape):
+        a = np.array([1, 2, 3])
+        out = np.zeros(outshape, dtype=a.dtype)
+        with pytest.raises(ValueError, match='same shape'):
+            random.permuted(a, out=out)
+
+    def test_permuted_out_with_wrong_type(self):
+        out = np.zeros((3, 5), dtype=np.int32)
+        x = np.ones((3, 5))
+        with pytest.raises(TypeError, match='Cannot cast'):
+            random.permuted(x, axis=1, out=out)
+
+    def test_permuted_not_writeable(self):
+        x = np.zeros((2, 5))
+        x.flags.writeable = False
+        with pytest.raises(ValueError, match='read-only'):
+            random.permuted(x, axis=1, out=x)
+
+    def test_beta(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.beta(.1, .9, size=(3, 2))
+        desired = np.array(
+            [[1.083029353267698e-10, 2.449965303168024e-11],
+             [2.397085162969853e-02, 3.590779671820755e-08],
+             [2.830254190078299e-04, 1.744709918330393e-01]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_binomial(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.binomial(100.123, .456, size=(3, 2))
+        desired = np.array([[42, 41],
+                            [42, 48],
+                            [44, 50]])
+        assert_array_equal(actual, desired)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.binomial(100.123, .456)
+        desired = 42
+        assert_array_equal(actual, desired)
+
+    def test_chisquare(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.chisquare(50, size=(3, 2))
+        desired = np.array([[32.9850547060149, 39.0219480493301],
+                            [56.2006134779419, 57.3474165711485],
+                            [55.4243733880198, 55.4209797925213]])
+        assert_array_almost_equal(actual, desired, decimal=13)
+
+    def test_dirichlet(self):
+        random = Generator(MT19937(self.seed))
+        alpha = np.array([51.72840233779265162, 39.74494232180943953])
+        actual = random.dirichlet(alpha, size=(3, 2))
+        desired = np.array([[[0.5439892869558927,  0.45601071304410745],
+                             [0.5588917345860708,  0.4411082654139292 ]],  # noqa: E202
+                            [[0.5632074165063435,  0.43679258349365657],
+                             [0.54862581112627,    0.45137418887373015]],
+                            [[0.49961831357047226, 0.5003816864295278 ],  # noqa: E202
+                             [0.52374806183482,    0.47625193816517997]]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+        bad_alpha = np.array([5.4e-01, -1.0e-16])
+        assert_raises(ValueError, random.dirichlet, bad_alpha)
+
+        random = Generator(MT19937(self.seed))
+        alpha = np.array([51.72840233779265162, 39.74494232180943953])
+        actual = random.dirichlet(alpha)
+        assert_array_almost_equal(actual, desired[0, 0], decimal=15)
+
+    def test_dirichlet_size(self):
+        # gh-3173
+        p = np.array([51.72840233779265162, 39.74494232180943953])
+        assert_equal(random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.dirichlet(p, [2, 2]).shape, (2, 2, 2))
+        assert_equal(random.dirichlet(p, (2, 2)).shape, (2, 2, 2))
+        assert_equal(random.dirichlet(p, np.array((2, 2))).shape, (2, 2, 2))
+
+        assert_raises(TypeError, random.dirichlet, p, float(1))
+
+    def test_dirichlet_bad_alpha(self):
+        # gh-2089
+        alpha = np.array([5.4e-01, -1.0e-16])
+        assert_raises(ValueError, random.dirichlet, alpha)
+
+        # gh-15876
+        assert_raises(ValueError, random.dirichlet, [[5, 1]])
+        assert_raises(ValueError, random.dirichlet, [[5], [1]])
+        assert_raises(ValueError, random.dirichlet, [[[5], [1]], [[1], [5]]])
+        assert_raises(ValueError, random.dirichlet, np.array([[5, 1], [1, 5]]))
+
+    def test_dirichlet_alpha_non_contiguous(self):
+        a = np.array([51.72840233779265162, -1.0, 39.74494232180943953])
+        alpha = a[::2]
+        random = Generator(MT19937(self.seed))
+        non_contig = random.dirichlet(alpha, size=(3, 2))
+        random = Generator(MT19937(self.seed))
+        contig = random.dirichlet(np.ascontiguousarray(alpha),
+                                  size=(3, 2))
+        assert_array_almost_equal(non_contig, contig)
+
+    def test_dirichlet_small_alpha(self):
+        eps = 1.0e-9  # 1.0e-10 -> runtime x 10; 1e-11 -> runtime x 200, etc.
+        alpha = eps * np.array([1., 1.0e-3])
+        random = Generator(MT19937(self.seed))
+        actual = random.dirichlet(alpha, size=(3, 2))
+        expected = np.array([
+            [[1., 0.],
+             [1., 0.]],
+            [[1., 0.],
+             [1., 0.]],
+            [[1., 0.],
+             [1., 0.]]
+        ])
+        assert_array_almost_equal(actual, expected, decimal=15)
+
+    @pytest.mark.slow
+    @pytest.mark.thread_unsafe(reason="crashes with low memory")
+    def test_dirichlet_moderately_small_alpha(self):
+        # Use alpha.max() < 0.1 to trigger stick breaking code path
+        alpha = np.array([0.02, 0.04, 0.03])
+        exact_mean = alpha / alpha.sum()
+        random = Generator(MT19937(self.seed))
+        sample = random.dirichlet(alpha, size=20000000)
+        sample_mean = sample.mean(axis=0)
+        assert_allclose(sample_mean, exact_mean, rtol=1e-3)
+
+    # This set of parameters includes inputs with alpha.max() >= 0.1 and
+    # alpha.max() < 0.1 to exercise both generation methods within the
+    # dirichlet code.
+    @pytest.mark.parametrize(
+        'alpha',
+        [[5, 9, 0, 8],
+         [0.5, 0, 0, 0],
+         [1, 5, 0, 0, 1.5, 0, 0, 0],
+         [0.01, 0.03, 0, 0.005],
+         [1e-5, 0, 0, 0],
+         [0.002, 0.015, 0, 0, 0.04, 0, 0, 0],
+         [0.0],
+         [0, 0, 0]],
+    )
+    def test_dirichlet_multiple_zeros_in_alpha(self, alpha):
+        alpha = np.array(alpha)
+        y = random.dirichlet(alpha)
+        assert_equal(y[alpha == 0], 0.0)
+
+    def test_exponential(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.exponential(1.1234, size=(3, 2))
+        desired = np.array([[0.098845481066258, 1.560752510746964],
+                            [0.075730916041636, 1.769098974710777],
+                            [1.488602544592235, 2.49684815275751 ]])  # noqa: E202
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_exponential_0(self):
+        assert_equal(random.exponential(scale=0), 0)
+        assert_raises(ValueError, random.exponential, scale=-0.)
+
+    def test_f(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.f(12, 77, size=(3, 2))
+        desired = np.array([[0.461720027077085, 1.100441958872451],
+                            [1.100337455217484, 0.91421736740018 ],  # noqa: E202
+                            [0.500811891303113, 0.826802454552058]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_gamma(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.gamma(5, 3, size=(3, 2))
+        desired = np.array([[ 5.03850858902096,  7.9228656732049 ],  # noqa: E202
+                            [18.73983605132985, 19.57961681699238],
+                            [18.17897755150825, 18.17653912505234]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_gamma_0(self):
+        assert_equal(random.gamma(shape=0, scale=0), 0)
+        assert_raises(ValueError, random.gamma, shape=-0., scale=-0.)
+
+    def test_geometric(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.geometric(.123456789, size=(3, 2))
+        desired = np.array([[1, 11],
+                            [1, 12],
+                            [11, 17]])
+        assert_array_equal(actual, desired)
+
+    def test_geometric_exceptions(self):
+        assert_raises(ValueError, random.geometric, 1.1)
+        assert_raises(ValueError, random.geometric, [1.1] * 10)
+        assert_raises(ValueError, random.geometric, -0.1)
+        assert_raises(ValueError, random.geometric, [-0.1] * 10)
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, random.geometric, np.nan)
+            assert_raises(ValueError, random.geometric, [np.nan] * 10)
+
+    def test_gumbel(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.gumbel(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[ 4.688397515056245, -0.289514845417841],
+                            [ 4.981176042584683, -0.633224272589149],
+                            [-0.055915275687488, -0.333962478257953]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_gumbel_0(self):
+        assert_equal(random.gumbel(scale=0), 0)
+        assert_raises(ValueError, random.gumbel, scale=-0.)
+
+    def test_hypergeometric(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.hypergeometric(10.1, 5.5, 14, size=(3, 2))
+        desired = np.array([[ 9, 9],
+                            [ 9, 9],
+                            [10, 9]])
+        assert_array_equal(actual, desired)
+
+        # Test nbad = 0
+        actual = random.hypergeometric(5, 0, 3, size=4)
+        desired = np.array([3, 3, 3, 3])
+        assert_array_equal(actual, desired)
+
+        actual = random.hypergeometric(15, 0, 12, size=4)
+        desired = np.array([12, 12, 12, 12])
+        assert_array_equal(actual, desired)
+
+        # Test ngood = 0
+        actual = random.hypergeometric(0, 5, 3, size=4)
+        desired = np.array([0, 0, 0, 0])
+        assert_array_equal(actual, desired)
+
+        actual = random.hypergeometric(0, 15, 12, size=4)
+        desired = np.array([0, 0, 0, 0])
+        assert_array_equal(actual, desired)
+
+    def test_laplace(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.laplace(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[-3.156353949272393,  1.195863024830054],
+                            [-3.435458081645966,  1.656882398925444],
+                            [ 0.924824032467446,  1.251116432209336]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_laplace_0(self):
+        assert_equal(random.laplace(scale=0), 0)
+        assert_raises(ValueError, random.laplace, scale=-0.)
+
+    def test_logistic(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.logistic(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[-4.338584631510999,  1.890171436749954],
+                            [-4.64547787337966 ,  2.514545562919217],  # noqa: E203
+                            [ 1.495389489198666,  1.967827627577474]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_lognormal(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.lognormal(mean=.123456789, sigma=2.0, size=(3, 2))
+        desired = np.array([[ 0.0268252166335, 13.9534486483053],
+                            [ 0.1204014788936,  2.2422077497792],
+                            [ 4.2484199496128, 12.0093343977523]])
+        assert_array_almost_equal(actual, desired, decimal=13)
+
+    def test_lognormal_0(self):
+        assert_equal(random.lognormal(sigma=0), 1)
+        assert_raises(ValueError, random.lognormal, sigma=-0.)
+
+    def test_logseries(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.logseries(p=.923456789, size=(3, 2))
+        desired = np.array([[14, 17],
+                            [3, 18],
+                            [5, 1]])
+        assert_array_equal(actual, desired)
+
+    def test_logseries_zero(self):
+        random = Generator(MT19937(self.seed))
+        assert random.logseries(0) == 1
+
+    @pytest.mark.parametrize("value", [np.nextafter(0., -1), 1., np.nan, 5.])
+    def test_logseries_exceptions(self, value):
+        random = Generator(MT19937(self.seed))
+        with np.errstate(invalid="ignore"):
+            with pytest.raises(ValueError):
+                random.logseries(value)
+            with pytest.raises(ValueError):
+                # contiguous path:
+                random.logseries(np.array([value] * 10))
+            with pytest.raises(ValueError):
+                # non-contiguous path:
+                random.logseries(np.array([value] * 10)[::2])
+
+    def test_multinomial(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.multinomial(20, [1 / 6.] * 6, size=(3, 2))
+        desired = np.array([[[1, 5, 1, 6, 4, 3],
+                             [4, 2, 6, 2, 4, 2]],
+                            [[5, 3, 2, 6, 3, 1],
+                             [4, 4, 0, 2, 3, 7]],
+                            [[6, 3, 1, 5, 3, 2],
+                             [5, 5, 3, 1, 2, 4]]])
+        assert_array_equal(actual, desired)
+
+    @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm")
+    @pytest.mark.parametrize("method", ["svd", "eigh", "cholesky"])
+    def test_multivariate_normal(self, method):
+        random = Generator(MT19937(self.seed))
+        mean = (.123456789, 10)
+        cov = [[1, 0], [0, 1]]
+        size = (3, 2)
+        actual = random.multivariate_normal(mean, cov, size, method=method)
+        desired = np.array([[[-1.747478062846581,  11.25613495182354 ],  # noqa: E202
+                             [-0.9967333370066214, 10.342002097029821]],
+                            [[ 0.7850019631242964, 11.181113712443013],
+                             [ 0.8901349653255224,  8.873825399642492]],
+                            [[ 0.7130260107430003,  9.551628690083056],
+                             [ 0.7127098726541128, 11.991709234143173]]])
+
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        # Check for default size, was raising deprecation warning
+        actual = random.multivariate_normal(mean, cov, method=method)
+        desired = np.array([0.233278563284287, 9.424140804347195])
+        assert_array_almost_equal(actual, desired, decimal=15)
+        # Check that non symmetric covariance input raises exception when
+        # check_valid='raises' if using default svd method.
+        mean = [0, 0]
+        cov = [[1, 2], [1, 2]]
+        assert_raises(ValueError, random.multivariate_normal, mean, cov,
+                      check_valid='raise')
+
+        # Check that non positive-semidefinite covariance warns with
+        # RuntimeWarning
+        cov = [[1, 2], [2, 1]]
+        pytest.warns(RuntimeWarning, random.multivariate_normal, mean, cov)
+        pytest.warns(RuntimeWarning, random.multivariate_normal, mean, cov,
+                     method='eigh')
+        assert_raises(LinAlgError, random.multivariate_normal, mean, cov,
+                      method='cholesky')
+
+        # and that it doesn't warn with RuntimeWarning check_valid='ignore'
+        assert_no_warnings(random.multivariate_normal, mean, cov,
+                           check_valid='ignore')
+
+        # and that it raises with RuntimeWarning check_valid='raises'
+        assert_raises(ValueError, random.multivariate_normal, mean, cov,
+                      check_valid='raise')
+        assert_raises(ValueError, random.multivariate_normal, mean, cov,
+                      check_valid='raise', method='eigh')
+
+        # check degenerate samples from singular covariance matrix
+        cov = [[1, 1], [1, 1]]
+        if method in ('svd', 'eigh'):
+            samples = random.multivariate_normal(mean, cov, size=(3, 2),
+                                                 method=method)
+            assert_array_almost_equal(samples[..., 0], samples[..., 1],
+                                      decimal=6)
+        else:
+            assert_raises(LinAlgError, random.multivariate_normal, mean, cov,
+                          method='cholesky')
+
+        cov = np.array([[1, 0.1], [0.1, 1]], dtype=np.float32)
+        with warnings.catch_warnings():
+            warnings.simplefilter("error")
+            random.multivariate_normal(mean, cov, method=method)
+
+        mu = np.zeros(2)
+        cov = np.eye(2)
+        assert_raises(ValueError, random.multivariate_normal, mean, cov,
+                      check_valid='other')
+        assert_raises(ValueError, random.multivariate_normal,
+                      np.zeros((2, 1, 1)), cov)
+        assert_raises(ValueError, random.multivariate_normal,
+                      mu, np.empty((3, 2)))
+        assert_raises(ValueError, random.multivariate_normal,
+                      mu, np.eye(3))
+
+    @pytest.mark.parametrize('mean, cov', [([0], [[1 + 1j]]), ([0j], [[1]])])
+    def test_multivariate_normal_disallow_complex(self, mean, cov):
+        random = Generator(MT19937(self.seed))
+        with pytest.raises(TypeError, match="must not be complex"):
+            random.multivariate_normal(mean, cov)
+
+    @pytest.mark.parametrize("method", ["svd", "eigh", "cholesky"])
+    def test_multivariate_normal_basic_stats(self, method):
+        random = Generator(MT19937(self.seed))
+        n_s = 1000
+        mean = np.array([1, 2])
+        cov = np.array([[2, 1], [1, 2]])
+        s = random.multivariate_normal(mean, cov, size=(n_s,), method=method)
+        s_center = s - mean
+        cov_emp = (s_center.T @ s_center) / (n_s - 1)
+        # these are pretty loose and are only designed to detect major errors
+        assert np.all(np.abs(s_center.mean(-2)) < 0.1)
+        assert np.all(np.abs(cov_emp - cov) < 0.2)
+
+    def test_negative_binomial(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.negative_binomial(n=100, p=.12345, size=(3, 2))
+        desired = np.array([[543, 727],
+                            [775, 760],
+                            [600, 674]])
+        assert_array_equal(actual, desired)
+
+    def test_negative_binomial_exceptions(self):
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, random.negative_binomial, 100, np.nan)
+            assert_raises(ValueError, random.negative_binomial, 100,
+                          [np.nan] * 10)
+
+    def test_negative_binomial_p0_exception(self):
+        # Verify that p=0 raises an exception.
+        with assert_raises(ValueError):
+            x = random.negative_binomial(1, 0)
+
+    def test_negative_binomial_invalid_p_n_combination(self):
+        # Verify that values of p and n that would result in an overflow
+        # or infinite loop raise an exception.
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, random.negative_binomial, 2**62, 0.1)
+            assert_raises(ValueError, random.negative_binomial, [2**62], [0.1])
+
+    def test_noncentral_chisquare(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.noncentral_chisquare(df=5, nonc=5, size=(3, 2))
+        desired = np.array([[ 1.70561552362133, 15.97378184942111],
+                            [13.71483425173724, 20.17859633310629],
+                            [11.3615477156643 ,  3.67891108738029]])  # noqa: E203
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        actual = random.noncentral_chisquare(df=.5, nonc=.2, size=(3, 2))
+        desired = np.array([[9.41427665607629e-04, 1.70473157518850e-04],
+                            [1.14554372041263e+00, 1.38187755933435e-03],
+                            [1.90659181905387e+00, 1.21772577941822e+00]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.noncentral_chisquare(df=5, nonc=0, size=(3, 2))
+        desired = np.array([[0.82947954590419, 1.80139670767078],
+                            [6.58720057417794, 7.00491463609814],
+                            [6.31101879073157, 6.30982307753005]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_noncentral_f(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.noncentral_f(dfnum=5, dfden=2, nonc=1,
+                                     size=(3, 2))
+        desired = np.array([[0.060310671139  , 0.23866058175939],  # noqa: E203
+                            [0.86860246709073, 0.2668510459738 ],  # noqa: E202
+                            [0.23375780078364, 1.88922102885943]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_noncentral_f_nan(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.noncentral_f(dfnum=5, dfden=2, nonc=np.nan)
+        assert np.isnan(actual)
+
+    def test_normal(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.normal(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[-3.618412914693162,  2.635726692647081],
+                            [-2.116923463013243,  0.807460983059643],
+                            [ 1.446547137248593,  2.485684213886024]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_normal_0(self):
+        assert_equal(random.normal(scale=0), 0)
+        assert_raises(ValueError, random.normal, scale=-0.)
+
+    def test_pareto(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.pareto(a=.123456789, size=(3, 2))
+        desired = np.array([[1.0394926776069018e+00, 7.7142534343505773e+04],
+                            [7.2640150889064703e-01, 3.4650454783825594e+05],
+                            [4.5852344481994740e+04, 6.5851383009539105e+07]])
+        # For some reason on 32-bit x86 Ubuntu 12.10 the [1, 0] entry in this
+        # matrix differs by 24 nulps. Discussion:
+        #   https://mail.python.org/pipermail/numpy-discussion/2012-September/063801.html
+        # Consensus is that this is probably some gcc quirk that affects
+        # rounding but not in any important way, so we just use a looser
+        # tolerance on this test:
+        np.testing.assert_array_almost_equal_nulp(actual, desired, nulp=30)
+
+    def test_poisson(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.poisson(lam=.123456789, size=(3, 2))
+        desired = np.array([[0, 0],
+                            [0, 0],
+                            [0, 0]])
+        assert_array_equal(actual, desired)
+
+    def test_poisson_exceptions(self):
+        lambig = np.iinfo('int64').max
+        lamneg = -1
+        assert_raises(ValueError, random.poisson, lamneg)
+        assert_raises(ValueError, random.poisson, [lamneg] * 10)
+        assert_raises(ValueError, random.poisson, lambig)
+        assert_raises(ValueError, random.poisson, [lambig] * 10)
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, random.poisson, np.nan)
+            assert_raises(ValueError, random.poisson, [np.nan] * 10)
+
+    def test_power(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.power(a=.123456789, size=(3, 2))
+        desired = np.array([[1.977857368842754e-09, 9.806792196620341e-02],
+                            [2.482442984543471e-10, 1.527108843266079e-01],
+                            [8.188283434244285e-02, 3.950547209346948e-01]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_rayleigh(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.rayleigh(scale=10, size=(3, 2))
+        desired = np.array([[4.19494429102666, 16.66920198906598],
+                            [3.67184544902662, 17.74695521962917],
+                            [16.27935397855501, 21.08355560691792]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_rayleigh_0(self):
+        assert_equal(random.rayleigh(scale=0), 0)
+        assert_raises(ValueError, random.rayleigh, scale=-0.)
+
+    def test_standard_cauchy(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_cauchy(size=(3, 2))
+        desired = np.array([[-1.489437778266206, -3.275389641569784],
+                            [ 0.560102864910406, -0.680780916282552],
+                            [-1.314912905226277,  0.295852965660225]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_exponential(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_exponential(size=(3, 2), method='inv')
+        desired = np.array([[0.102031839440643, 1.229350298474972],
+                            [0.088137284693098, 1.459859985522667],
+                            [1.093830802293668, 1.256977002164613]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_expoential_type_error(self):
+        assert_raises(TypeError, random.standard_exponential, dtype=np.int32)
+
+    def test_standard_gamma(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_gamma(shape=3, size=(3, 2))
+        desired = np.array([[0.62970724056362, 1.22379851271008],
+                            [3.899412530884  , 4.12479964250139],  # noqa: E203
+                            [3.74994102464584, 3.74929307690815]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_standard_gammma_scalar_float(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_gamma(3, dtype=np.float32)
+        desired = 2.9242148399353027
+        assert_array_almost_equal(actual, desired, decimal=6)
+
+    def test_standard_gamma_float(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_gamma(shape=3, size=(3, 2))
+        desired = np.array([[0.62971, 1.2238],
+                            [3.89941, 4.1248],
+                            [3.74994, 3.74929]])
+        assert_array_almost_equal(actual, desired, decimal=5)
+
+    def test_standard_gammma_float_out(self):
+        actual = np.zeros((3, 2), dtype=np.float32)
+        random = Generator(MT19937(self.seed))
+        random.standard_gamma(10.0, out=actual, dtype=np.float32)
+        desired = np.array([[10.14987,  7.87012],
+                             [ 9.46284, 12.56832],
+                             [13.82495,  7.81533]], dtype=np.float32)
+        assert_array_almost_equal(actual, desired, decimal=5)
+
+        random = Generator(MT19937(self.seed))
+        random.standard_gamma(10.0, out=actual, size=(3, 2), dtype=np.float32)
+        assert_array_almost_equal(actual, desired, decimal=5)
+
+    def test_standard_gamma_unknown_type(self):
+        assert_raises(TypeError, random.standard_gamma, 1.,
+                      dtype='int32')
+
+    def test_out_size_mismatch(self):
+        out = np.zeros(10)
+        assert_raises(ValueError, random.standard_gamma, 10.0, size=20,
+                      out=out)
+        assert_raises(ValueError, random.standard_gamma, 10.0, size=(10, 1),
+                      out=out)
+
+    def test_standard_gamma_0(self):
+        assert_equal(random.standard_gamma(shape=0), 0)
+        assert_raises(ValueError, random.standard_gamma, shape=-0.)
+
+    def test_standard_normal(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_normal(size=(3, 2))
+        desired = np.array([[-1.870934851846581,  1.25613495182354 ],  # noqa: E202
+                            [-1.120190126006621,  0.342002097029821],
+                            [ 0.661545174124296,  1.181113712443012]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_normal_unsupported_type(self):
+        assert_raises(TypeError, random.standard_normal, dtype=np.int32)
+
+    def test_standard_t(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_t(df=10, size=(3, 2))
+        desired = np.array([[-1.484666193042647,  0.30597891831161],
+                            [ 1.056684299648085, -0.407312602088507],
+                            [ 0.130704414281157, -2.038053410490321]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_triangular(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.triangular(left=5.12, mode=10.23, right=20.34,
+                                   size=(3, 2))
+        desired = np.array([[ 7.86664070590917, 13.6313848513185 ],  # noqa: E202
+                            [ 7.68152445215983, 14.36169131136546],
+                            [13.16105603911429, 13.72341621856971]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_uniform(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.uniform(low=1.23, high=10.54, size=(3, 2))
+        desired = np.array([[2.13306255040998 , 7.816987531021207],  # noqa: E203
+                            [2.015436610109887, 8.377577533009589],
+                            [7.421792588856135, 7.891185744455209]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_uniform_range_bounds(self):
+        fmin = np.finfo('float').min
+        fmax = np.finfo('float').max
+
+        func = random.uniform
+        assert_raises(OverflowError, func, -np.inf, 0)
+        assert_raises(OverflowError, func, 0, np.inf)
+        assert_raises(OverflowError, func, fmin, fmax)
+        assert_raises(OverflowError, func, [-np.inf], [0])
+        assert_raises(OverflowError, func, [0], [np.inf])
+
+        # (fmax / 1e17) - fmin is within range, so this should not throw
+        # account for i386 extended precision DBL_MAX / 1e17 + DBL_MAX >
+        # DBL_MAX by increasing fmin a bit
+        random.uniform(low=np.nextafter(fmin, 1), high=fmax / 1e17)
+
+    def test_uniform_zero_range(self):
+        func = random.uniform
+        result = func(1.5, 1.5)
+        assert_allclose(result, 1.5)
+        result = func([0.0, np.pi], [0.0, np.pi])
+        assert_allclose(result, [0.0, np.pi])
+        result = func([[2145.12], [2145.12]], [2145.12, 2145.12])
+        assert_allclose(result, 2145.12 + np.zeros((2, 2)))
+
+    def test_uniform_neg_range(self):
+        func = random.uniform
+        assert_raises(ValueError, func, 2, 1)
+        assert_raises(ValueError, func,  [1, 2], [1, 1])
+        assert_raises(ValueError, func,  [[0, 1], [2, 3]], 2)
+
+    def test_scalar_exception_propagation(self):
+        # Tests that exceptions are correctly propagated in distributions
+        # when called with objects that throw exceptions when converted to
+        # scalars.
+        #
+        # Regression test for gh: 8865
+
+        class ThrowingFloat(np.ndarray):
+            def __float__(self):
+                raise TypeError
+
+        throwing_float = np.array(1.0).view(ThrowingFloat)
+        assert_raises(TypeError, random.uniform, throwing_float,
+                      throwing_float)
+
+        class ThrowingInteger(np.ndarray):
+            def __int__(self):
+                raise TypeError
+
+        throwing_int = np.array(1).view(ThrowingInteger)
+        assert_raises(TypeError, random.hypergeometric, throwing_int, 1, 1)
+
+    def test_vonmises(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.vonmises(mu=1.23, kappa=1.54, size=(3, 2))
+        desired = np.array([[ 1.107972248690106,  2.841536476232361],
+                            [ 1.832602376042457,  1.945511926976032],
+                            [-0.260147475776542,  2.058047492231698]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_vonmises_small(self):
+        # check infinite loop, gh-4720
+        random = Generator(MT19937(self.seed))
+        r = random.vonmises(mu=0., kappa=1.1e-8, size=10**6)
+        assert_(np.isfinite(r).all())
+
+    def test_vonmises_nan(self):
+        random = Generator(MT19937(self.seed))
+        r = random.vonmises(mu=0., kappa=np.nan)
+        assert_(np.isnan(r))
+
+    @pytest.mark.parametrize("kappa", [1e4, 1e15])
+    def test_vonmises_large_kappa(self, kappa):
+        random = Generator(MT19937(self.seed))
+        rs = RandomState(random.bit_generator)
+        state = random.bit_generator.state
+
+        random_state_vals = rs.vonmises(0, kappa, size=10)
+        random.bit_generator.state = state
+        gen_vals = random.vonmises(0, kappa, size=10)
+        if kappa < 1e6:
+            assert_allclose(random_state_vals, gen_vals)
+        else:
+            assert np.all(random_state_vals != gen_vals)
+
+    @pytest.mark.parametrize("mu", [-7., -np.pi, -3.1, np.pi, 3.2])
+    @pytest.mark.parametrize("kappa", [1e-9, 1e-6, 1, 1e3, 1e15])
+    def test_vonmises_large_kappa_range(self, mu, kappa):
+        random = Generator(MT19937(self.seed))
+        r = random.vonmises(mu, kappa, 50)
+        assert_(np.all(r > -np.pi) and np.all(r <= np.pi))
+
+    def test_wald(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.wald(mean=1.23, scale=1.54, size=(3, 2))
+        desired = np.array([[0.26871721804551, 3.2233942732115 ],  # noqa: E202
+                            [2.20328374987066, 2.40958405189353],
+                            [2.07093587449261, 0.73073890064369]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_wald_nonnegative(self):
+        random = Generator(MT19937(self.seed))
+        samples = random.wald(mean=1e9, scale=2.25, size=1000)
+        assert_(np.all(samples >= 0.0))
+
+    def test_weibull(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.weibull(a=1.23, size=(3, 2))
+        desired = np.array([[0.138613914769468, 1.306463419753191],
+                            [0.111623365934763, 1.446570494646721],
+                            [1.257145775276011, 1.914247725027957]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_weibull_0(self):
+        random = Generator(MT19937(self.seed))
+        assert_equal(random.weibull(a=0, size=12), np.zeros(12))
+        assert_raises(ValueError, random.weibull, a=-0.)
+
+    def test_zipf(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.zipf(a=1.23, size=(3, 2))
+        desired = np.array([[  1,   1],
+                            [ 10, 867],
+                            [354,   2]])
+        assert_array_equal(actual, desired)
+
+
+class TestBroadcast:
+    # tests that functions that broadcast behave
+    # correctly when presented with non-scalar arguments
+    seed = 123456789
+
+    def test_uniform(self):
+        random = Generator(MT19937(self.seed))
+        low = [0]
+        high = [1]
+        uniform = random.uniform
+        desired = np.array([0.16693771389729, 0.19635129550675, 0.75563050964095])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.uniform(low * 3, high)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.uniform(low, high * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_normal(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        random = Generator(MT19937(self.seed))
+        desired = np.array([-0.38736406738527, 0.79594375042255, 0.0197076236097])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.normal(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.normal, loc * 3, bad_scale)
+
+        random = Generator(MT19937(self.seed))
+        normal = random.normal
+        actual = normal(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, normal, loc, bad_scale * 3)
+
+    def test_beta(self):
+        a = [1]
+        b = [2]
+        bad_a = [-1]
+        bad_b = [-2]
+        desired = np.array([0.18719338682602, 0.73234824491364, 0.17928615186455])
+
+        random = Generator(MT19937(self.seed))
+        beta = random.beta
+        actual = beta(a * 3, b)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, beta, bad_a * 3, b)
+        assert_raises(ValueError, beta, a * 3, bad_b)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.beta(a, b * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_exponential(self):
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.67245993212806, 0.21380495318094, 0.7177848928629])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.exponential(scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.exponential, bad_scale * 3)
+
+    def test_standard_gamma(self):
+        shape = [1]
+        bad_shape = [-1]
+        desired = np.array([0.67245993212806, 0.21380495318094, 0.7177848928629])
+
+        random = Generator(MT19937(self.seed))
+        std_gamma = random.standard_gamma
+        actual = std_gamma(shape * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, std_gamma, bad_shape * 3)
+
+    def test_gamma(self):
+        shape = [1]
+        scale = [2]
+        bad_shape = [-1]
+        bad_scale = [-2]
+        desired = np.array([1.34491986425611, 0.42760990636187, 1.4355697857258])
+
+        random = Generator(MT19937(self.seed))
+        gamma = random.gamma
+        actual = gamma(shape * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, gamma, bad_shape * 3, scale)
+        assert_raises(ValueError, gamma, shape * 3, bad_scale)
+
+        random = Generator(MT19937(self.seed))
+        gamma = random.gamma
+        actual = gamma(shape, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, gamma, bad_shape, scale * 3)
+        assert_raises(ValueError, gamma, shape, bad_scale * 3)
+
+    def test_f(self):
+        dfnum = [1]
+        dfden = [2]
+        bad_dfnum = [-1]
+        bad_dfden = [-2]
+        desired = np.array([0.07765056244107, 7.72951397913186, 0.05786093891763])
+
+        random = Generator(MT19937(self.seed))
+        f = random.f
+        actual = f(dfnum * 3, dfden)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, f, bad_dfnum * 3, dfden)
+        assert_raises(ValueError, f, dfnum * 3, bad_dfden)
+
+        random = Generator(MT19937(self.seed))
+        f = random.f
+        actual = f(dfnum, dfden * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, f, bad_dfnum, dfden * 3)
+        assert_raises(ValueError, f, dfnum, bad_dfden * 3)
+
+    def test_noncentral_f(self):
+        dfnum = [2]
+        dfden = [3]
+        nonc = [4]
+        bad_dfnum = [0]
+        bad_dfden = [-1]
+        bad_nonc = [-2]
+        desired = np.array([2.02434240411421, 12.91838601070124, 1.24395160354629])
+
+        random = Generator(MT19937(self.seed))
+        nonc_f = random.noncentral_f
+        actual = nonc_f(dfnum * 3, dfden, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert np.all(np.isnan(nonc_f(dfnum, dfden, [np.nan] * 3)))
+
+        assert_raises(ValueError, nonc_f, bad_dfnum * 3, dfden, nonc)
+        assert_raises(ValueError, nonc_f, dfnum * 3, bad_dfden, nonc)
+        assert_raises(ValueError, nonc_f, dfnum * 3, dfden, bad_nonc)
+
+        random = Generator(MT19937(self.seed))
+        nonc_f = random.noncentral_f
+        actual = nonc_f(dfnum, dfden * 3, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, nonc_f, bad_dfnum, dfden * 3, nonc)
+        assert_raises(ValueError, nonc_f, dfnum, bad_dfden * 3, nonc)
+        assert_raises(ValueError, nonc_f, dfnum, dfden * 3, bad_nonc)
+
+        random = Generator(MT19937(self.seed))
+        nonc_f = random.noncentral_f
+        actual = nonc_f(dfnum, dfden, nonc * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, nonc_f, bad_dfnum, dfden, nonc * 3)
+        assert_raises(ValueError, nonc_f, dfnum, bad_dfden, nonc * 3)
+        assert_raises(ValueError, nonc_f, dfnum, dfden, bad_nonc * 3)
+
+    def test_noncentral_f_small_df(self):
+        random = Generator(MT19937(self.seed))
+        desired = np.array([0.04714867120827, 0.1239390327694])
+        actual = random.noncentral_f(0.9, 0.9, 2, size=2)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_chisquare(self):
+        df = [1]
+        bad_df = [-1]
+        desired = np.array([0.05573640064251, 1.47220224353539, 2.9469379318589])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.chisquare(df * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.chisquare, bad_df * 3)
+
+    def test_noncentral_chisquare(self):
+        df = [1]
+        nonc = [2]
+        bad_df = [-1]
+        bad_nonc = [-2]
+        desired = np.array([0.07710766249436, 5.27829115110304, 0.630732147399])
+
+        random = Generator(MT19937(self.seed))
+        nonc_chi = random.noncentral_chisquare
+        actual = nonc_chi(df * 3, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, nonc_chi, bad_df * 3, nonc)
+        assert_raises(ValueError, nonc_chi, df * 3, bad_nonc)
+
+        random = Generator(MT19937(self.seed))
+        nonc_chi = random.noncentral_chisquare
+        actual = nonc_chi(df, nonc * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, nonc_chi, bad_df, nonc * 3)
+        assert_raises(ValueError, nonc_chi, df, bad_nonc * 3)
+
+    def test_standard_t(self):
+        df = [1]
+        bad_df = [-1]
+        desired = np.array([-1.39498829447098, -1.23058658835223, 0.17207021065983])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.standard_t(df * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.standard_t, bad_df * 3)
+
+    def test_vonmises(self):
+        mu = [2]
+        kappa = [1]
+        bad_kappa = [-1]
+        desired = np.array([2.25935584988528, 2.23326261461399, -2.84152146503326])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.vonmises(mu * 3, kappa)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.vonmises, mu * 3, bad_kappa)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.vonmises(mu, kappa * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.vonmises, mu, bad_kappa * 3)
+
+    def test_pareto(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.95905052946317, 0.2383810889437, 1.04988745750013])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.pareto(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.pareto, bad_a * 3)
+
+    def test_weibull(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.67245993212806, 0.21380495318094, 0.7177848928629])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.weibull(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.weibull, bad_a * 3)
+
+    def test_power(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.48954864361052, 0.19249412888486, 0.51216834058807])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.power(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.power, bad_a * 3)
+
+    def test_laplace(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([-1.09698732625119, -0.93470271947368, 0.71592671378202])
+
+        random = Generator(MT19937(self.seed))
+        laplace = random.laplace
+        actual = laplace(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, laplace, loc * 3, bad_scale)
+
+        random = Generator(MT19937(self.seed))
+        laplace = random.laplace
+        actual = laplace(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, laplace, loc, bad_scale * 3)
+
+    def test_gumbel(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([1.70020068231762, 1.52054354273631, -0.34293267607081])
+
+        random = Generator(MT19937(self.seed))
+        gumbel = random.gumbel
+        actual = gumbel(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, gumbel, loc * 3, bad_scale)
+
+        random = Generator(MT19937(self.seed))
+        gumbel = random.gumbel
+        actual = gumbel(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, gumbel, loc, bad_scale * 3)
+
+    def test_logistic(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([-1.607487640433, -1.40925686003678, 1.12887112820397])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.logistic(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.logistic, loc * 3, bad_scale)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.logistic(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.logistic, loc, bad_scale * 3)
+        assert_equal(random.logistic(1.0, 0.0), 1.0)
+
+    def test_lognormal(self):
+        mean = [0]
+        sigma = [1]
+        bad_sigma = [-1]
+        desired = np.array([0.67884390500697, 2.21653186290321, 1.01990310084276])
+
+        random = Generator(MT19937(self.seed))
+        lognormal = random.lognormal
+        actual = lognormal(mean * 3, sigma)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, lognormal, mean * 3, bad_sigma)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.lognormal(mean, sigma * 3)
+        assert_raises(ValueError, random.lognormal, mean, bad_sigma * 3)
+
+    def test_rayleigh(self):
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array(
+            [1.1597068009872629,
+             0.6539188836253857,
+             1.1981526554349398]
+        )
+
+        random = Generator(MT19937(self.seed))
+        actual = random.rayleigh(scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.rayleigh, bad_scale * 3)
+
+    def test_wald(self):
+        mean = [0.5]
+        scale = [1]
+        bad_mean = [0]
+        bad_scale = [-2]
+        desired = np.array([0.38052407392905, 0.50701641508592, 0.484935249864])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.wald(mean * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.wald, bad_mean * 3, scale)
+        assert_raises(ValueError, random.wald, mean * 3, bad_scale)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.wald(mean, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, random.wald, bad_mean, scale * 3)
+        assert_raises(ValueError, random.wald, mean, bad_scale * 3)
+
+    def test_triangular(self):
+        left = [1]
+        right = [3]
+        mode = [2]
+        bad_left_one = [3]
+        bad_mode_one = [4]
+        bad_left_two, bad_mode_two = right * 2
+        desired = np.array([1.57781954604754, 1.62665986867957, 2.30090130831326])
+
+        random = Generator(MT19937(self.seed))
+        triangular = random.triangular
+        actual = triangular(left * 3, mode, right)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, triangular, bad_left_one * 3, mode, right)
+        assert_raises(ValueError, triangular, left * 3, bad_mode_one, right)
+        assert_raises(ValueError, triangular, bad_left_two * 3, bad_mode_two,
+                      right)
+
+        random = Generator(MT19937(self.seed))
+        triangular = random.triangular
+        actual = triangular(left, mode * 3, right)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, triangular, bad_left_one, mode * 3, right)
+        assert_raises(ValueError, triangular, left, bad_mode_one * 3, right)
+        assert_raises(ValueError, triangular, bad_left_two, bad_mode_two * 3,
+                      right)
+
+        random = Generator(MT19937(self.seed))
+        triangular = random.triangular
+        actual = triangular(left, mode, right * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, triangular, bad_left_one, mode, right * 3)
+        assert_raises(ValueError, triangular, left, bad_mode_one, right * 3)
+        assert_raises(ValueError, triangular, bad_left_two, bad_mode_two,
+                      right * 3)
+
+        assert_raises(ValueError, triangular, 10., 0., 20.)
+        assert_raises(ValueError, triangular, 10., 25., 20.)
+        assert_raises(ValueError, triangular, 10., 10., 10.)
+
+    def test_binomial(self):
+        n = [1]
+        p = [0.5]
+        bad_n = [-1]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([0, 0, 1])
+
+        random = Generator(MT19937(self.seed))
+        binom = random.binomial
+        actual = binom(n * 3, p)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, binom, bad_n * 3, p)
+        assert_raises(ValueError, binom, n * 3, bad_p_one)
+        assert_raises(ValueError, binom, n * 3, bad_p_two)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.binomial(n, p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, binom, bad_n, p * 3)
+        assert_raises(ValueError, binom, n, bad_p_one * 3)
+        assert_raises(ValueError, binom, n, bad_p_two * 3)
+
+    def test_negative_binomial(self):
+        n = [1]
+        p = [0.5]
+        bad_n = [-1]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([0, 2, 1], dtype=np.int64)
+
+        random = Generator(MT19937(self.seed))
+        neg_binom = random.negative_binomial
+        actual = neg_binom(n * 3, p)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, neg_binom, bad_n * 3, p)
+        assert_raises(ValueError, neg_binom, n * 3, bad_p_one)
+        assert_raises(ValueError, neg_binom, n * 3, bad_p_two)
+
+        random = Generator(MT19937(self.seed))
+        neg_binom = random.negative_binomial
+        actual = neg_binom(n, p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, neg_binom, bad_n, p * 3)
+        assert_raises(ValueError, neg_binom, n, bad_p_one * 3)
+        assert_raises(ValueError, neg_binom, n, bad_p_two * 3)
+
+    def test_poisson(self):
+
+        lam = [1]
+        bad_lam_one = [-1]
+        desired = np.array([0, 0, 3])
+
+        random = Generator(MT19937(self.seed))
+        max_lam = random._poisson_lam_max
+        bad_lam_two = [max_lam * 2]
+        poisson = random.poisson
+        actual = poisson(lam * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, poisson, bad_lam_one * 3)
+        assert_raises(ValueError, poisson, bad_lam_two * 3)
+
+    def test_zipf(self):
+        a = [2]
+        bad_a = [0]
+        desired = np.array([1, 8, 1])
+
+        random = Generator(MT19937(self.seed))
+        zipf = random.zipf
+        actual = zipf(a * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, zipf, bad_a * 3)
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, zipf, np.nan)
+            assert_raises(ValueError, zipf, [0, 0, np.nan])
+
+    def test_geometric(self):
+        p = [0.5]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([1, 1, 3])
+
+        random = Generator(MT19937(self.seed))
+        geometric = random.geometric
+        actual = geometric(p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, geometric, bad_p_one * 3)
+        assert_raises(ValueError, geometric, bad_p_two * 3)
+
+    def test_hypergeometric(self):
+        ngood = [1]
+        nbad = [2]
+        nsample = [2]
+        bad_ngood = [-1]
+        bad_nbad = [-2]
+        bad_nsample_one = [-1]
+        bad_nsample_two = [4]
+        desired = np.array([0, 0, 1])
+
+        random = Generator(MT19937(self.seed))
+        actual = random.hypergeometric(ngood * 3, nbad, nsample)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, random.hypergeometric, bad_ngood * 3, nbad, nsample)
+        assert_raises(ValueError, random.hypergeometric, ngood * 3, bad_nbad, nsample)
+        assert_raises(ValueError, random.hypergeometric, ngood * 3, nbad, bad_nsample_one)  # noqa: E501
+        assert_raises(ValueError, random.hypergeometric, ngood * 3, nbad, bad_nsample_two)  # noqa: E501
+
+        random = Generator(MT19937(self.seed))
+        actual = random.hypergeometric(ngood, nbad * 3, nsample)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, random.hypergeometric, bad_ngood, nbad * 3, nsample)
+        assert_raises(ValueError, random.hypergeometric, ngood, bad_nbad * 3, nsample)
+        assert_raises(ValueError, random.hypergeometric, ngood, nbad * 3, bad_nsample_one)  # noqa: E501
+        assert_raises(ValueError, random.hypergeometric, ngood, nbad * 3, bad_nsample_two)  # noqa: E501
+
+        random = Generator(MT19937(self.seed))
+        hypergeom = random.hypergeometric
+        actual = hypergeom(ngood, nbad, nsample * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, hypergeom, bad_ngood, nbad, nsample * 3)
+        assert_raises(ValueError, hypergeom, ngood, bad_nbad, nsample * 3)
+        assert_raises(ValueError, hypergeom, ngood, nbad, bad_nsample_one * 3)
+        assert_raises(ValueError, hypergeom, ngood, nbad, bad_nsample_two * 3)
+
+        assert_raises(ValueError, hypergeom, -1, 10, 20)
+        assert_raises(ValueError, hypergeom, 10, -1, 20)
+        assert_raises(ValueError, hypergeom, 10, 10, -1)
+        assert_raises(ValueError, hypergeom, 10, 10, 25)
+
+        # ValueError for arguments that are too big.
+        assert_raises(ValueError, hypergeom, 2**30, 10, 20)
+        assert_raises(ValueError, hypergeom, 999, 2**31, 50)
+        assert_raises(ValueError, hypergeom, 999, [2**29, 2**30], 1000)
+
+    def test_logseries(self):
+        p = [0.5]
+        bad_p_one = [2]
+        bad_p_two = [-1]
+        desired = np.array([1, 1, 1])
+
+        random = Generator(MT19937(self.seed))
+        logseries = random.logseries
+        actual = logseries(p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, logseries, bad_p_one * 3)
+        assert_raises(ValueError, logseries, bad_p_two * 3)
+
+    def test_multinomial(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.multinomial([5, 20], [1 / 6.] * 6, size=(3, 2))
+        desired = np.array([[[0, 0, 2, 1, 2, 0],
+                             [2, 3, 6, 4, 2, 3]],
+                            [[1, 0, 1, 0, 2, 1],
+                             [7, 2, 2, 1, 4, 4]],
+                            [[0, 2, 0, 1, 2, 0],
+                             [3, 2, 3, 3, 4, 5]]], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.multinomial([5, 20], [1 / 6.] * 6)
+        desired = np.array([[0, 0, 2, 1, 2, 0],
+                            [2, 3, 6, 4, 2, 3]], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.multinomial([5, 20], [[1 / 6.] * 6] * 2)
+        desired = np.array([[0, 0, 2, 1, 2, 0],
+                            [2, 3, 6, 4, 2, 3]], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+        random = Generator(MT19937(self.seed))
+        actual = random.multinomial([[5], [20]], [[1 / 6.] * 6] * 2)
+        desired = np.array([[[0, 0, 2, 1, 2, 0],
+                             [0, 0, 2, 1, 1, 1]],
+                            [[4, 2, 3, 3, 5, 3],
+                             [7, 2, 2, 1, 4, 4]]], dtype=np.int64)
+        assert_array_equal(actual, desired)
+
+    @pytest.mark.parametrize("n", [10,
+                                   np.array([10, 10]),
+                                   np.array([[[10]], [[10]]])
+                                   ]
+                             )
+    def test_multinomial_pval_broadcast(self, n):
+        random = Generator(MT19937(self.seed))
+        pvals = np.array([1 / 4] * 4)
+        actual = random.multinomial(n, pvals)
+        n_shape = () if isinstance(n, int) else n.shape
+        expected_shape = n_shape + (4,)
+        assert actual.shape == expected_shape
+        pvals = np.vstack([pvals, pvals])
+        actual = random.multinomial(n, pvals)
+        expected_shape = np.broadcast_shapes(n_shape, pvals.shape[:-1]) + (4,)
+        assert actual.shape == expected_shape
+
+        pvals = np.vstack([[pvals], [pvals]])
+        actual = random.multinomial(n, pvals)
+        expected_shape = np.broadcast_shapes(n_shape, pvals.shape[:-1])
+        assert actual.shape == expected_shape + (4,)
+        actual = random.multinomial(n, pvals, size=(3, 2) + expected_shape)
+        assert actual.shape == (3, 2) + expected_shape + (4,)
+
+        with pytest.raises(ValueError):
+            # Ensure that size is not broadcast
+            actual = random.multinomial(n, pvals, size=(1,) * 6)
+
+    def test_invalid_pvals_broadcast(self):
+        random = Generator(MT19937(self.seed))
+        pvals = [[1 / 6] * 6, [1 / 4] * 6]
+        assert_raises(ValueError, random.multinomial, 1, pvals)
+        assert_raises(ValueError, random.multinomial, 6, 0.5)
+
+    def test_empty_outputs(self):
+        random = Generator(MT19937(self.seed))
+        actual = random.multinomial(np.empty((10, 0, 6), "i8"), [1 / 6] * 6)
+        assert actual.shape == (10, 0, 6, 6)
+        actual = random.multinomial(12, np.empty((10, 0, 10)))
+        assert actual.shape == (10, 0, 10)
+        actual = random.multinomial(np.empty((3, 0, 7), "i8"),
+                                    np.empty((3, 0, 7, 4)))
+        assert actual.shape == (3, 0, 7, 4)
+
+
+@pytest.mark.skipif(IS_WASM, reason="can't start thread")
+class TestThread:
+    # make sure each state produces the same sequence even in threads
+    seeds = range(4)
+
+    def check_function(self, function, sz):
+        from threading import Thread
+
+        out1 = np.empty((len(self.seeds),) + sz)
+        out2 = np.empty((len(self.seeds),) + sz)
+
+        # threaded generation
+        t = [Thread(target=function, args=(Generator(MT19937(s)), o))
+             for s, o in zip(self.seeds, out1)]
+        [x.start() for x in t]
+        [x.join() for x in t]
+
+        # the same serial
+        for s, o in zip(self.seeds, out2):
+            function(Generator(MT19937(s)), o)
+
+        # these platforms change x87 fpu precision mode in threads
+        if np.intp().dtype.itemsize == 4 and sys.platform == "win32":
+            assert_array_almost_equal(out1, out2)
+        else:
+            assert_array_equal(out1, out2)
+
+    def test_normal(self):
+        def gen_random(state, out):
+            out[...] = state.normal(size=10000)
+
+        self.check_function(gen_random, sz=(10000,))
+
+    def test_exp(self):
+        def gen_random(state, out):
+            out[...] = state.exponential(scale=np.ones((100, 1000)))
+
+        self.check_function(gen_random, sz=(100, 1000))
+
+    def test_multinomial(self):
+        def gen_random(state, out):
+            out[...] = state.multinomial(10, [1 / 6.] * 6, size=10000)
+
+        self.check_function(gen_random, sz=(10000, 6))
+
+
+# See Issue #4263
+class TestSingleEltArrayInput:
+    def _create_arrays(self):
+        return np.array([2]), np.array([3]), np.array([4]), (1,)
+
+    def test_one_arg_funcs(self):
+        argOne, _, _, tgtShape = self._create_arrays()
+        funcs = (random.exponential, random.standard_gamma,
+                 random.chisquare, random.standard_t,
+                 random.pareto, random.weibull,
+                 random.power, random.rayleigh,
+                 random.poisson, random.zipf,
+                 random.geometric, random.logseries)
+
+        probfuncs = (random.geometric, random.logseries)
+
+        for func in funcs:
+            if func in probfuncs:  # p < 1.0
+                out = func(np.array([0.5]))
+
+            else:
+                out = func(argOne)
+
+            assert_equal(out.shape, tgtShape)
+
+    def test_two_arg_funcs(self):
+        argOne, argTwo, _, tgtShape = self._create_arrays()
+        funcs = (random.uniform, random.normal,
+                 random.beta, random.gamma,
+                 random.f, random.noncentral_chisquare,
+                 random.vonmises, random.laplace,
+                 random.gumbel, random.logistic,
+                 random.lognormal, random.wald,
+                 random.binomial, random.negative_binomial)
+
+        probfuncs = (random.binomial, random.negative_binomial)
+
+        for func in funcs:
+            if func in probfuncs:  # p <= 1
+                argTwo = np.array([0.5])
+
+            else:
+                argTwo = argTwo
+
+            out = func(argOne, argTwo)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne[0], argTwo)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne, argTwo[0])
+            assert_equal(out.shape, tgtShape)
+
+    def test_integers(self, endpoint):
+        _, _, _, tgtShape = self._create_arrays()
+        itype = [np.bool, np.int8, np.uint8, np.int16, np.uint16,
+                 np.int32, np.uint32, np.int64, np.uint64]
+        func = random.integers
+        high = np.array([1])
+        low = np.array([0])
+
+        for dt in itype:
+            out = func(low, high, endpoint=endpoint, dtype=dt)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(low[0], high, endpoint=endpoint, dtype=dt)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(low, high[0], endpoint=endpoint, dtype=dt)
+            assert_equal(out.shape, tgtShape)
+
+    def test_three_arg_funcs(self):
+        argOne, argTwo, argThree, tgtShape = self._create_arrays()
+        funcs = [random.noncentral_f, random.triangular,
+                 random.hypergeometric]
+
+        for func in funcs:
+            out = func(argOne, argTwo, argThree)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne[0], argTwo, argThree)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne, argTwo[0], argThree)
+            assert_equal(out.shape, tgtShape)
+
+
+@pytest.mark.parametrize("config", JUMP_TEST_DATA)
+def test_jumped(config):
+    # Each config contains the initial seed, a number of raw steps
+    # the sha256 hashes of the initial and the final states' keys and
+    # the position of the initial and the final state.
+    # These were produced using the original C implementation.
+    seed = config["seed"]
+    steps = config["steps"]
+
+    mt19937 = MT19937(seed)
+    # Burn step
+    mt19937.random_raw(steps)
+    key = mt19937.state["state"]["key"]
+    if sys.byteorder == 'big':
+        key = key.byteswap()
+    sha256 = hashlib.sha256(key)
+    assert mt19937.state["state"]["pos"] == config["initial"]["pos"]
+    assert sha256.hexdigest() == config["initial"]["key_sha256"]
+
+    jumped = mt19937.jumped()
+    key = jumped.state["state"]["key"]
+    if sys.byteorder == 'big':
+        key = key.byteswap()
+    sha256 = hashlib.sha256(key)
+    assert jumped.state["state"]["pos"] == config["jumped"]["pos"]
+    assert sha256.hexdigest() == config["jumped"]["key_sha256"]
+
+
+def test_broadcast_size_error():
+    mu = np.ones(3)
+    sigma = np.ones((4, 3))
+    size = (10, 4, 2)
+    assert random.normal(mu, sigma, size=(5, 4, 3)).shape == (5, 4, 3)
+    with pytest.raises(ValueError):
+        random.normal(mu, sigma, size=size)
+    with pytest.raises(ValueError):
+        random.normal(mu, sigma, size=(1, 3))
+    with pytest.raises(ValueError):
+        random.normal(mu, sigma, size=(4, 1, 1))
+    # 1 arg
+    shape = np.ones((4, 3))
+    with pytest.raises(ValueError):
+        random.standard_gamma(shape, size=size)
+    with pytest.raises(ValueError):
+        random.standard_gamma(shape, size=(3,))
+    with pytest.raises(ValueError):
+        random.standard_gamma(shape, size=3)
+    # Check out
+    out = np.empty(size)
+    with pytest.raises(ValueError):
+        random.standard_gamma(shape, out=out)
+
+    # 2 arg
+    with pytest.raises(ValueError):
+        random.binomial(1, [0.3, 0.7], size=(2, 1))
+    with pytest.raises(ValueError):
+        random.binomial([1, 2], 0.3, size=(2, 1))
+    with pytest.raises(ValueError):
+        random.binomial([1, 2], [0.3, 0.7], size=(2, 1))
+    with pytest.raises(ValueError):
+        random.multinomial([2, 2], [.3, .7], size=(2, 1))
+
+    # 3 arg
+    a = random.chisquare(5, size=3)
+    b = random.chisquare(5, size=(4, 3))
+    c = random.chisquare(5, size=(5, 4, 3))
+    assert random.noncentral_f(a, b, c).shape == (5, 4, 3)
+    with pytest.raises(ValueError, match=r"Output size \(6, 5, 1, 1\) is"):
+        random.noncentral_f(a, b, c, size=(6, 5, 1, 1))
+
+
+def test_broadcast_size_scalar():
+    mu = np.ones(3)
+    sigma = np.ones(3)
+    random.normal(mu, sigma, size=3)
+    with pytest.raises(ValueError):
+        random.normal(mu, sigma, size=2)
+
+
+def test_ragged_shuffle():
+    # GH 18142
+    seq = [[], [], 1]
+    gen = Generator(MT19937(0))
+    assert_no_warnings(gen.shuffle, seq)
+    assert seq == [1, [], []]
+
+
+@pytest.mark.parametrize("high", [-2, [-2]])
+@pytest.mark.parametrize("endpoint", [True, False])
+def test_single_arg_integer_exception(high, endpoint):
+    # GH 14333
+    gen = Generator(MT19937(0))
+    msg = 'high < 0' if endpoint else 'high <= 0'
+    with pytest.raises(ValueError, match=msg):
+        gen.integers(high, endpoint=endpoint)
+    msg = 'low > high' if endpoint else 'low >= high'
+    with pytest.raises(ValueError, match=msg):
+        gen.integers(-1, high, endpoint=endpoint)
+    with pytest.raises(ValueError, match=msg):
+        gen.integers([-1], high, endpoint=endpoint)
+
+
+@pytest.mark.parametrize("dtype", ["f4", "f8"])
+def test_c_contig_req_out(dtype):
+    # GH 18704
+    out = np.empty((2, 3), order="F", dtype=dtype)
+    shape = [1, 2, 3]
+    with pytest.raises(ValueError, match="Supplied output array"):
+        random.standard_gamma(shape, out=out, dtype=dtype)
+    with pytest.raises(ValueError, match="Supplied output array"):
+        random.standard_gamma(shape, out=out, size=out.shape, dtype=dtype)
+
+
+@pytest.mark.parametrize("dtype", ["f4", "f8"])
+@pytest.mark.parametrize("order", ["F", "C"])
+@pytest.mark.parametrize("dist", [random.standard_normal, random.random])
+def test_contig_req_out(dist, order, dtype):
+    # GH 18704
+    out = np.empty((2, 3), dtype=dtype, order=order)
+    variates = dist(out=out, dtype=dtype)
+    assert variates is out
+    variates = dist(out=out, dtype=dtype, size=out.shape)
+    assert variates is out
+
+
+def test_generator_ctor_old_style_pickle():
+    rg = np.random.Generator(np.random.PCG64DXSM(0))
+    rg.standard_normal(1)
+    # Directly call reduce which is used in pickling
+    ctor, (bit_gen, ), _ = rg.__reduce__()
+    # Simulate unpickling an old pickle that only has the name
+    assert bit_gen.__class__.__name__ == "PCG64DXSM"
+    print(ctor)
+    b = ctor(*("PCG64DXSM",))
+    print(b)
+    b.bit_generator.state = bit_gen.state
+    state_b = b.bit_generator.state
+    assert bit_gen.state == state_b
+
+
+def test_pickle_preserves_seed_sequence():
+    # GH 26234
+    # Add explicit test that bit generators preserve seed sequences
+    import pickle
+
+    rg = np.random.Generator(np.random.PCG64DXSM(20240411))
+    ss = rg.bit_generator.seed_seq
+    rg_plk = pickle.loads(pickle.dumps(rg))
+    ss_plk = rg_plk.bit_generator.seed_seq
+    assert_equal(ss.state, ss_plk.state)
+    assert_equal(ss.pool, ss_plk.pool)
+
+    rg.bit_generator.seed_seq.spawn(10)
+    rg_plk = pickle.loads(pickle.dumps(rg))
+    ss_plk = rg_plk.bit_generator.seed_seq
+    assert_equal(ss.state, ss_plk.state)
+
+
+@pytest.mark.parametrize("version", [121, 126])
+def test_legacy_pickle(version):
+    # Pickling format was changes in 1.22.x and in 2.0.x
+    import gzip
+    import pickle
+
+    base_path = os.path.split(os.path.abspath(__file__))[0]
+    pkl_file = os.path.join(
+        base_path, "data", f"generator_pcg64_np{version}.pkl.gz"
+    )
+    with gzip.open(pkl_file) as gz:
+        rg = pickle.load(gz)
+    state = rg.bit_generator.state['state']
+
+    assert isinstance(rg, Generator)
+    assert isinstance(rg.bit_generator, np.random.PCG64)
+    assert state['state'] == 35399562948360463058890781895381311971
+    assert state['inc'] == 87136372517582989555478159403783844777
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_generator_mt19937_regressions.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_generator_mt19937_regressions.py
new file mode 100644
index 0000000000000000000000000000000000000000..bec962a487a18b2854c7a260b37ba4ba53185353
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_generator_mt19937_regressions.py
@@ -0,0 +1,221 @@
+import pytest
+
+import numpy as np
+from numpy.random import MT19937, Generator
+from numpy.testing import assert_, assert_array_equal
+
+
+class TestRegression:
+    def _create_generator(self):
+        return Generator(MT19937(121263137472525314065))
+
+    def test_vonmises_range(self):
+        # Make sure generated random variables are in [-pi, pi].
+        # Regression test for ticket #986.
+        mt19937 = self._create_generator()
+        for mu in np.linspace(-7., 7., 5):
+            r = mt19937.vonmises(mu, 1, 50)
+            assert_(np.all(r > -np.pi) and np.all(r <= np.pi))
+
+    def test_hypergeometric_range(self):
+        # Test for ticket #921
+        mt19937 = self._create_generator()
+        assert_(np.all(mt19937.hypergeometric(3, 18, 11, size=10) < 4))
+        assert_(np.all(mt19937.hypergeometric(18, 3, 11, size=10) > 0))
+
+        # Test for ticket #5623
+        args = (2**20 - 2, 2**20 - 2, 2**20 - 2)  # Check for 32-bit systems
+        assert_(mt19937.hypergeometric(*args) > 0)
+
+    def test_logseries_convergence(self):
+        # Test for ticket #923
+        mt19937 = self._create_generator()
+        N = 1000
+        rvsn = mt19937.logseries(0.8, size=N)
+        # these two frequency counts should be close to theoretical
+        # numbers with this large sample
+        # theoretical large N result is 0.49706795
+        freq = np.sum(rvsn == 1) / N
+        msg = f'Frequency was {freq:f}, should be > 0.45'
+        assert_(freq > 0.45, msg)
+        # theoretical large N result is 0.19882718
+        freq = np.sum(rvsn == 2) / N
+        msg = f'Frequency was {freq:f}, should be < 0.23'
+        assert_(freq < 0.23, msg)
+
+    def test_shuffle_mixed_dimension(self):
+        # Test for trac ticket #2074
+        for t in [[1, 2, 3, None],
+                  [(1, 1), (2, 2), (3, 3), None],
+                  [1, (2, 2), (3, 3), None],
+                  [(1, 1), 2, 3, None]]:
+            mt19937 = Generator(MT19937(12345))
+            shuffled = np.array(t, dtype=object)
+            mt19937.shuffle(shuffled)
+            expected = np.array([t[2], t[0], t[3], t[1]], dtype=object)
+            assert_array_equal(np.array(shuffled, dtype=object), expected)
+
+    def test_call_within_randomstate(self):
+        # Check that custom BitGenerator does not call into global state
+        res = np.array([1, 8, 0, 1, 5, 3, 3, 8, 1, 4])
+        for i in range(3):
+            mt19937 = Generator(MT19937(i))
+            m = Generator(MT19937(4321))
+            # If m.state is not honored, the result will change
+            assert_array_equal(m.choice(10, size=10, p=np.ones(10) / 10.), res)
+
+    def test_multivariate_normal_size_types(self):
+        # Test for multivariate_normal issue with 'size' argument.
+        # Check that the multivariate_normal size argument can be a
+        # numpy integer.
+        mt19937 = self._create_generator()
+        mt19937.multivariate_normal([0], [[0]], size=1)
+        mt19937.multivariate_normal([0], [[0]], size=np.int_(1))
+        mt19937.multivariate_normal([0], [[0]], size=np.int64(1))
+
+    def test_beta_small_parameters(self):
+        # Test that beta with small a and b parameters does not produce
+        # NaNs due to roundoff errors causing 0 / 0, gh-5851
+        mt19937 = self._create_generator()
+        x = mt19937.beta(0.0001, 0.0001, size=100)
+        assert_(not np.any(np.isnan(x)), 'Nans in mt19937.beta')
+
+    def test_beta_very_small_parameters(self):
+        # gh-24203: beta would hang with very small parameters.
+        mt19937 = self._create_generator()
+        mt19937.beta(1e-49, 1e-40)
+
+    def test_beta_ridiculously_small_parameters(self):
+        # gh-24266: beta would generate nan when the parameters
+        # were subnormal or a small multiple of the smallest normal.
+        mt19937 = self._create_generator()
+        tiny = np.finfo(1.0).tiny
+        x = mt19937.beta(tiny / 32, tiny / 40, size=50)
+        assert not np.any(np.isnan(x))
+
+    def test_beta_expected_zero_frequency(self):
+        # gh-24475: For small a and b (e.g. a=0.0025, b=0.0025), beta
+        # would generate too many zeros.
+        mt19937 = self._create_generator()
+        a = 0.0025
+        b = 0.0025
+        n = 1000000
+        x = mt19937.beta(a, b, size=n)
+        nzeros = np.count_nonzero(x == 0)
+        # beta CDF at x = np.finfo(np.double).smallest_subnormal/2
+        # is p = 0.0776169083131899, e.g,
+        #
+        #    import numpy as np
+        #    from mpmath import mp
+        #    mp.dps = 160
+        #    x = mp.mpf(np.finfo(np.float64).smallest_subnormal)/2
+        #    # CDF of the beta distribution at x:
+        #    p = mp.betainc(a, b, x1=0, x2=x, regularized=True)
+        #    n = 1000000
+        #    exprected_freq = float(n*p)
+        #
+        expected_freq = 77616.90831318991
+        assert 0.95 * expected_freq < nzeros < 1.05 * expected_freq
+
+    def test_choice_sum_of_probs_tolerance(self):
+        # The sum of probs should be 1.0 with some tolerance.
+        # For low precision dtypes the tolerance was too tight.
+        # See numpy github issue 6123.
+        mt19937 = self._create_generator()
+        a = [1, 2, 3]
+        counts = [4, 4, 2]
+        for dt in np.float16, np.float32, np.float64:
+            probs = np.array(counts, dtype=dt) / sum(counts)
+            c = mt19937.choice(a, p=probs)
+            assert_(c in a)
+            with pytest.raises(ValueError):
+                mt19937.choice(a, p=probs * 0.9)
+
+    def test_shuffle_of_array_of_different_length_strings(self):
+        # Test that permuting an array of different length strings
+        # will not cause a segfault on garbage collection
+        # Tests gh-7710
+        mt19937 = self._create_generator()
+
+        a = np.array(['a', 'a' * 1000])
+
+        for _ in range(100):
+            mt19937.shuffle(a)
+
+        # Force Garbage Collection - should not segfault.
+        import gc
+        gc.collect()
+
+    def test_shuffle_of_array_of_objects(self):
+        # Test that permuting an array of objects will not cause
+        # a segfault on garbage collection.
+        # See gh-7719
+        mt19937 = self._create_generator()
+        a = np.array([np.arange(1), np.arange(4)], dtype=object)
+
+        for _ in range(1000):
+            mt19937.shuffle(a)
+
+        # Force Garbage Collection - should not segfault.
+        import gc
+        gc.collect()
+
+    def test_permutation_subclass(self):
+
+        class N(np.ndarray):
+            pass
+
+        mt19937 = Generator(MT19937(1))
+        orig = np.arange(3).view(N)
+        perm = mt19937.permutation(orig)
+        assert_array_equal(perm, np.array([2, 0, 1]))
+        assert_array_equal(orig, np.arange(3).view(N))
+
+        class M:
+            a = np.arange(5)
+
+            def __array__(self, dtype=None, copy=None):
+                return self.a
+
+        mt19937 = Generator(MT19937(1))
+        m = M()
+        perm = mt19937.permutation(m)
+        assert_array_equal(perm, np.array([4, 1, 3, 0, 2]))
+        assert_array_equal(m.__array__(), np.arange(5))
+
+    def test_gamma_0(self):
+        mt19937 = self._create_generator()
+        assert mt19937.standard_gamma(0.0) == 0.0
+        assert_array_equal(mt19937.standard_gamma([0.0]), 0.0)
+
+        actual = mt19937.standard_gamma([0.0], dtype='float')
+        expected = np.array([0.], dtype=np.float32)
+        assert_array_equal(actual, expected)
+
+    def test_geometric_tiny_prob(self):
+        # Regression test for gh-17007.
+        # When p = 1e-30, the probability that a sample will exceed 2**63-1
+        # is 0.9999999999907766, so we expect the result to be all 2**63-1.
+        mt19937 = self._create_generator()
+        assert_array_equal(mt19937.geometric(p=1e-30, size=3),
+                           np.iinfo(np.int64).max)
+
+    def test_zipf_large_parameter(self):
+        # Regression test for part of gh-9829: a call such as rng.zipf(10000)
+        # would hang.
+        mt19937 = self._create_generator()
+        n = 8
+        sample = mt19937.zipf(10000, size=n)
+        assert_array_equal(sample, np.ones(n, dtype=np.int64))
+
+    def test_zipf_a_near_1(self):
+        # Regression test for gh-9829: a call such as rng.zipf(1.0000000000001)
+        # would hang.
+        mt19937 = self._create_generator()
+        n = 100000
+        sample = mt19937.zipf(1.0000000000001, size=n)
+        # Not much of a test, but let's do something more than verify that
+        # it doesn't hang.  Certainly for a monotonically decreasing
+        # discrete distribution truncated to signed 64 bit integers, more
+        # than half should be less than 2**62.
+        assert np.count_nonzero(sample < 2**62) > n / 2
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_random.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_random.py
new file mode 100644
index 0000000000000000000000000000000000000000..1702d6f1906b716b2320e1329b6752765abb041b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_random.py
@@ -0,0 +1,1724 @@
+import sys
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy import random
+from numpy.testing import (
+    IS_WASM,
+    assert_,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_no_warnings,
+    assert_raises,
+)
+
+
+class TestSeed:
+    def test_scalar(self):
+        s = np.random.RandomState(0)
+        assert_equal(s.randint(1000), 684)
+        s = np.random.RandomState(4294967295)
+        assert_equal(s.randint(1000), 419)
+
+    def test_array(self):
+        s = np.random.RandomState(range(10))
+        assert_equal(s.randint(1000), 468)
+        s = np.random.RandomState(np.arange(10))
+        assert_equal(s.randint(1000), 468)
+        s = np.random.RandomState([0])
+        assert_equal(s.randint(1000), 973)
+        s = np.random.RandomState([4294967295])
+        assert_equal(s.randint(1000), 265)
+
+    def test_invalid_scalar(self):
+        # seed must be an unsigned 32 bit integer
+        assert_raises(TypeError, np.random.RandomState, -0.5)
+        assert_raises(ValueError, np.random.RandomState, -1)
+
+    def test_invalid_array(self):
+        # seed must be an unsigned 32 bit integer
+        assert_raises(TypeError, np.random.RandomState, [-0.5])
+        assert_raises(ValueError, np.random.RandomState, [-1])
+        assert_raises(ValueError, np.random.RandomState, [4294967296])
+        assert_raises(ValueError, np.random.RandomState, [1, 2, 4294967296])
+        assert_raises(ValueError, np.random.RandomState, [1, -2, 4294967296])
+
+    def test_invalid_array_shape(self):
+        # gh-9832
+        assert_raises(ValueError, np.random.RandomState,
+                      np.array([], dtype=np.int64))
+        assert_raises(ValueError, np.random.RandomState, [[1, 2, 3]])
+        assert_raises(ValueError, np.random.RandomState, [[1, 2, 3],
+                                                          [4, 5, 6]])
+
+
+class TestBinomial:
+    def test_n_zero(self):
+        # Tests the corner case of n == 0 for the binomial distribution.
+        # binomial(0, p) should be zero for any p in [0, 1].
+        # This test addresses issue #3480.
+        zeros = np.zeros(2, dtype='int')
+        for p in [0, .5, 1]:
+            assert_(random.binomial(0, p) == 0)
+            assert_array_equal(random.binomial(zeros, p), zeros)
+
+    def test_p_is_nan(self):
+        # Issue #4571.
+        assert_raises(ValueError, random.binomial, 1, np.nan)
+
+
+class TestMultinomial:
+    def test_basic(self):
+        random.multinomial(100, [0.2, 0.8])
+
+    def test_zero_probability(self):
+        random.multinomial(100, [0.2, 0.8, 0.0, 0.0, 0.0])
+
+    def test_int_negative_interval(self):
+        assert_(-5 <= random.randint(-5, -1) < -1)
+        x = random.randint(-5, -1, 5)
+        assert_(np.all(-5 <= x))
+        assert_(np.all(x < -1))
+
+    def test_size(self):
+        # gh-3173
+        p = [0.5, 0.5]
+        assert_equal(np.random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(np.random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(np.random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(np.random.multinomial(1, p, [2, 2]).shape, (2, 2, 2))
+        assert_equal(np.random.multinomial(1, p, (2, 2)).shape, (2, 2, 2))
+        assert_equal(np.random.multinomial(1, p, np.array((2, 2))).shape,
+                     (2, 2, 2))
+
+        assert_raises(TypeError, np.random.multinomial, 1, p,
+                      float(1))
+
+    def test_multidimensional_pvals(self):
+        assert_raises(ValueError, np.random.multinomial, 10, [[0, 1]])
+        assert_raises(ValueError, np.random.multinomial, 10, [[0], [1]])
+        assert_raises(ValueError, np.random.multinomial, 10, [[[0], [1]], [[1], [0]]])
+        assert_raises(ValueError, np.random.multinomial, 10, np.array([[0, 1], [1, 0]]))
+
+
+class TestSetState:
+    def _create_rng(self):
+        seed = 1234567890
+        prng = random.RandomState(seed)
+        state = prng.get_state()
+        return prng, state
+
+    def test_basic(self):
+        prng, state = self._create_rng()
+        old = prng.tomaxint(16)
+        prng.set_state(state)
+        new = prng.tomaxint(16)
+        assert_(np.all(old == new))
+
+    def test_gaussian_reset(self):
+        # Make sure the cached every-other-Gaussian is reset.
+        prng, state = self._create_rng()
+        old = prng.standard_normal(size=3)
+        prng.set_state(state)
+        new = prng.standard_normal(size=3)
+        assert_(np.all(old == new))
+
+    def test_gaussian_reset_in_media_res(self):
+        # When the state is saved with a cached Gaussian, make sure the
+        # cached Gaussian is restored.
+        prng, state = self._create_rng()
+        prng.standard_normal()
+        state = prng.get_state()
+        old = prng.standard_normal(size=3)
+        prng.set_state(state)
+        new = prng.standard_normal(size=3)
+        assert_(np.all(old == new))
+
+    def test_backwards_compatibility(self):
+        # Make sure we can accept old state tuples that do not have the
+        # cached Gaussian value.
+        prng, state = self._create_rng()
+        old_state = state[:-2]
+        x1 = prng.standard_normal(size=16)
+        prng.set_state(old_state)
+        x2 = prng.standard_normal(size=16)
+        prng.set_state(state)
+        x3 = prng.standard_normal(size=16)
+        assert_(np.all(x1 == x2))
+        assert_(np.all(x1 == x3))
+
+    def test_negative_binomial(self):
+        # Ensure that the negative binomial results take floating point
+        # arguments without truncation.
+        prng, _ = self._create_rng()
+        prng.negative_binomial(0.5, 0.5)
+
+    def test_set_invalid_state(self):
+        # gh-25402
+        prng, _ = self._create_rng()
+        with pytest.raises(IndexError):
+            prng.set_state(())
+
+
+class TestRandint:
+
+    # valid integer/boolean types
+    itype = [np.bool, np.int8, np.uint8, np.int16, np.uint16,
+             np.int32, np.uint32, np.int64, np.uint64]
+
+    def test_unsupported_type(self):
+        rng = random.RandomState()
+        assert_raises(TypeError, rng.randint, 1, dtype=float)
+
+    def test_bounds_checking(self):
+        rng = random.RandomState()
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+            assert_raises(ValueError, rng.randint, lbnd - 1, ubnd, dtype=dt)
+            assert_raises(ValueError, rng.randint, lbnd, ubnd + 1, dtype=dt)
+            assert_raises(ValueError, rng.randint, ubnd, lbnd, dtype=dt)
+            assert_raises(ValueError, rng.randint, 1, 0, dtype=dt)
+
+    def test_rng_zero_and_extremes(self):
+        rng = random.RandomState()
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+
+            tgt = ubnd - 1
+            assert_equal(rng.randint(tgt, tgt + 1, size=1000, dtype=dt), tgt)
+
+            tgt = lbnd
+            assert_equal(rng.randint(tgt, tgt + 1, size=1000, dtype=dt), tgt)
+
+            tgt = (lbnd + ubnd) // 2
+            assert_equal(rng.randint(tgt, tgt + 1, size=1000, dtype=dt), tgt)
+
+    def test_full_range(self):
+        # Test for ticket #1690
+        rng = random.RandomState()
+
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+
+            try:
+                rng.randint(lbnd, ubnd, dtype=dt)
+            except Exception as e:
+                raise AssertionError("No error should have been raised, "
+                                     "but one was with the following "
+                                     "message:\n\n%s" % str(e))
+
+    def test_in_bounds_fuzz(self):
+        # Don't use fixed seed
+        rng = random.RandomState()
+
+        for dt in self.itype[1:]:
+            for ubnd in [4, 8, 16]:
+                vals = rng.randint(2, ubnd, size=2**16, dtype=dt)
+                assert_(vals.max() < ubnd)
+                assert_(vals.min() >= 2)
+
+        vals = rng.randint(0, 2, size=2**16, dtype=np.bool)
+
+        assert_(vals.max() < 2)
+        assert_(vals.min() >= 0)
+
+    def test_repeatability(self):
+        import hashlib
+        # We use a sha256 hash of generated sequences of 1000 samples
+        # in the range [0, 6) for all but bool, where the range
+        # is [0, 2). Hashes are for little endian numbers.
+        tgt = {'bool':   '509aea74d792fb931784c4b0135392c65aec64beee12b0cc167548a2c3d31e71',  # noqa: E501
+               'int16':  '7b07f1a920e46f6d0fe02314155a2330bcfd7635e708da50e536c5ebb631a7d4',  # noqa: E501
+               'int32':  'e577bfed6c935de944424667e3da285012e741892dcb7051a8f1ce68ab05c92f',  # noqa: E501
+               'int64':  '0fbead0b06759df2cfb55e43148822d4a1ff953c7eb19a5b08445a63bb64fa9e',  # noqa: E501
+               'int8':   '001aac3a5acb935a9b186cbe14a1ca064b8bb2dd0b045d48abeacf74d0203404',  # noqa: E501
+               'uint16': '7b07f1a920e46f6d0fe02314155a2330bcfd7635e708da50e536c5ebb631a7d4',  # noqa: E501
+               'uint32': 'e577bfed6c935de944424667e3da285012e741892dcb7051a8f1ce68ab05c92f',  # noqa: E501
+               'uint64': '0fbead0b06759df2cfb55e43148822d4a1ff953c7eb19a5b08445a63bb64fa9e',  # noqa: E501
+               'uint8':  '001aac3a5acb935a9b186cbe14a1ca064b8bb2dd0b045d48abeacf74d0203404'}  # noqa: E501
+
+        for dt in self.itype[1:]:
+            rng = random.RandomState(1234)
+
+            # view as little endian for hash
+            if sys.byteorder == 'little':
+                val = rng.randint(0, 6, size=1000, dtype=dt)
+            else:
+                val = rng.randint(0, 6, size=1000, dtype=dt).byteswap()
+
+            res = hashlib.sha256(val.view(np.int8)).hexdigest()
+            assert_(tgt[np.dtype(dt).name] == res)
+
+        # bools do not depend on endianness
+        rng = random.RandomState(1234)
+        val = rng.randint(0, 2, size=1000, dtype=bool).view(np.int8)
+        res = hashlib.sha256(val).hexdigest()
+        assert_(tgt[np.dtype(bool).name] == res)
+
+    def test_int64_uint64_corner_case(self):
+        # When stored in Numpy arrays, `lbnd` is casted
+        # as np.int64, and `ubnd` is casted as np.uint64.
+        # Checking whether `lbnd` >= `ubnd` used to be
+        # done solely via direct comparison, which is incorrect
+        # because when Numpy tries to compare both numbers,
+        # it casts both to np.float64 because there is
+        # no integer superset of np.int64 and np.uint64. However,
+        # `ubnd` is too large to be represented in np.float64,
+        # causing it be round down to np.iinfo(np.int64).max,
+        # leading to a ValueError because `lbnd` now equals
+        # the new `ubnd`.
+
+        dt = np.int64
+        tgt = np.iinfo(np.int64).max
+        lbnd = np.int64(np.iinfo(np.int64).max)
+        ubnd = np.uint64(np.iinfo(np.int64).max + 1)
+
+        # None of these function calls should
+        # generate a ValueError now.
+        actual = np.random.randint(lbnd, ubnd, dtype=dt)
+        assert_equal(actual, tgt)
+
+    def test_respect_dtype_singleton(self):
+        # See gh-7203
+        rng = random.RandomState()
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+
+            sample = rng.randint(lbnd, ubnd, dtype=dt)
+            assert_equal(sample.dtype, np.dtype(dt))
+
+        for dt in (bool, int):
+            # The legacy rng uses "long" as the default integer:
+            lbnd = 0 if dt is bool else np.iinfo("long").min
+            ubnd = 2 if dt is bool else np.iinfo("long").max + 1
+
+            # gh-7284: Ensure that we get Python data types
+            sample = rng.randint(lbnd, ubnd, dtype=dt)
+            assert_(not hasattr(sample, 'dtype'))
+            assert_equal(type(sample), dt)
+
+
+class TestRandomDist:
+    # Make sure the random distribution returns the correct value for a
+    # given seed
+    seed = 1234567890
+
+    def test_rand(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.rand(3, 2)
+        desired = np.array([[0.61879477158567997, 0.59162362775974664],
+                            [0.88868358904449662, 0.89165480011560816],
+                            [0.4575674820298663, 0.7781880808593471]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_randn(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.randn(3, 2)
+        desired = np.array([[1.34016345771863121, 1.73759122771936081],
+                           [1.498988344300628, -0.2286433324536169],
+                           [2.031033998682787, 2.17032494605655257]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_randint(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.randint(-99, 99, size=(3, 2))
+        desired = np.array([[31, 3],
+                            [-52, 41],
+                            [-48, -66]])
+        assert_array_equal(actual, desired)
+
+    def test_random_integers(self):
+        rng = random.RandomState(self.seed)
+        with pytest.warns(DeprecationWarning):
+            actual = rng.random_integers(-99, 99, size=(3, 2))
+        desired = np.array([[31, 3],
+                            [-52, 41],
+                            [-48, -66]])
+        assert_array_equal(actual, desired)
+
+    def test_random_integers_max_int(self):
+        # Tests whether random_integers can generate the
+        # maximum allowed Python int that can be converted
+        # into a C long. Previous implementations of this
+        # method have thrown an OverflowError when attempting
+        # to generate this integer.
+        with pytest.warns(DeprecationWarning):
+            actual = np.random.random_integers(np.iinfo('l').max,
+                                               np.iinfo('l').max)
+
+        desired = np.iinfo('l').max
+        assert_equal(actual, desired)
+
+    def test_random_integers_deprecated(self):
+        with warnings.catch_warnings():
+            warnings.simplefilter("error", DeprecationWarning)
+
+            # DeprecationWarning raised with high == None
+            assert_raises(DeprecationWarning,
+                          np.random.random_integers,
+                          np.iinfo('l').max)
+
+            # DeprecationWarning raised with high != None
+            assert_raises(DeprecationWarning,
+                          np.random.random_integers,
+                          np.iinfo('l').max, np.iinfo('l').max)
+
+    def test_random(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.random((3, 2))
+        desired = np.array([[0.61879477158567997, 0.59162362775974664],
+                            [0.88868358904449662, 0.89165480011560816],
+                            [0.4575674820298663, 0.7781880808593471]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_choice_uniform_replace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 4)
+        desired = np.array([2, 3, 2, 3])
+        assert_array_equal(actual, desired)
+
+    def test_choice_nonuniform_replace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 4, p=[0.4, 0.4, 0.1, 0.1])
+        desired = np.array([1, 1, 2, 2])
+        assert_array_equal(actual, desired)
+
+    def test_choice_uniform_noreplace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 3, replace=False)
+        desired = np.array([0, 1, 3])
+        assert_array_equal(actual, desired)
+
+    def test_choice_nonuniform_noreplace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 3, replace=False,
+                                  p=[0.1, 0.3, 0.5, 0.1])
+        desired = np.array([2, 3, 1])
+        assert_array_equal(actual, desired)
+
+    def test_choice_noninteger(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(['a', 'b', 'c', 'd'], 4)
+        desired = np.array(['c', 'd', 'c', 'd'])
+        assert_array_equal(actual, desired)
+
+    def test_choice_exceptions(self):
+        sample = np.random.choice
+        assert_raises(ValueError, sample, -1, 3)
+        assert_raises(ValueError, sample, 3., 3)
+        assert_raises(ValueError, sample, [[1, 2], [3, 4]], 3)
+        assert_raises(ValueError, sample, [], 3)
+        assert_raises(ValueError, sample, [1, 2, 3, 4], 3,
+                      p=[[0.25, 0.25], [0.25, 0.25]])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[0.4, 0.4, 0.2])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[1.1, -0.1])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[0.4, 0.4])
+        assert_raises(ValueError, sample, [1, 2, 3], 4, replace=False)
+        # gh-13087
+        assert_raises(ValueError, sample, [1, 2, 3], -2, replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], (-1,), replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], (-1, 1), replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], 2,
+                      replace=False, p=[1, 0, 0])
+
+    def test_choice_return_shape(self):
+        p = [0.1, 0.9]
+        # Check scalar
+        assert_(np.isscalar(np.random.choice(2, replace=True)))
+        assert_(np.isscalar(np.random.choice(2, replace=False)))
+        assert_(np.isscalar(np.random.choice(2, replace=True, p=p)))
+        assert_(np.isscalar(np.random.choice(2, replace=False, p=p)))
+        assert_(np.isscalar(np.random.choice([1, 2], replace=True)))
+        assert_(np.random.choice([None], replace=True) is None)
+        a = np.array([1, 2])
+        arr = np.empty(1, dtype=object)
+        arr[0] = a
+        assert_(np.random.choice(arr, replace=True) is a)
+
+        # Check 0-d array
+        s = ()
+        assert_(not np.isscalar(np.random.choice(2, s, replace=True)))
+        assert_(not np.isscalar(np.random.choice(2, s, replace=False)))
+        assert_(not np.isscalar(np.random.choice(2, s, replace=True, p=p)))
+        assert_(not np.isscalar(np.random.choice(2, s, replace=False, p=p)))
+        assert_(not np.isscalar(np.random.choice([1, 2], s, replace=True)))
+        assert_(np.random.choice([None], s, replace=True).ndim == 0)
+        a = np.array([1, 2])
+        arr = np.empty(1, dtype=object)
+        arr[0] = a
+        assert_(np.random.choice(arr, s, replace=True).item() is a)
+
+        # Check multi dimensional array
+        s = (2, 3)
+        p = [0.1, 0.1, 0.1, 0.1, 0.4, 0.2]
+        assert_equal(np.random.choice(6, s, replace=True).shape, s)
+        assert_equal(np.random.choice(6, s, replace=False).shape, s)
+        assert_equal(np.random.choice(6, s, replace=True, p=p).shape, s)
+        assert_equal(np.random.choice(6, s, replace=False, p=p).shape, s)
+        assert_equal(np.random.choice(np.arange(6), s, replace=True).shape, s)
+
+        # Check zero-size
+        assert_equal(np.random.randint(0, 0, size=(3, 0, 4)).shape, (3, 0, 4))
+        assert_equal(np.random.randint(0, -10, size=0).shape, (0,))
+        assert_equal(np.random.randint(10, 10, size=0).shape, (0,))
+        assert_equal(np.random.choice(0, size=0).shape, (0,))
+        assert_equal(np.random.choice([], size=(0,)).shape, (0,))
+        assert_equal(np.random.choice(['a', 'b'], size=(3, 0, 4)).shape,
+                     (3, 0, 4))
+        assert_raises(ValueError, np.random.choice, [], 10)
+
+    def test_choice_nan_probabilities(self):
+        a = np.array([42, 1, 2])
+        p = [None, None, None]
+        assert_raises(ValueError, np.random.choice, a, p=p)
+
+    def test_bytes(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.bytes(10)
+        desired = b'\x82Ui\x9e\xff\x97+Wf\xa5'
+        assert_equal(actual, desired)
+
+    def test_shuffle(self):
+        # Test lists, arrays (of various dtypes), and multidimensional versions
+        # of both, c-contiguous or not:
+        for conv in [lambda x: np.array([]),
+                     lambda x: x,
+                     lambda x: np.asarray(x).astype(np.int8),
+                     lambda x: np.asarray(x).astype(np.float32),
+                     lambda x: np.asarray(x).astype(np.complex64),
+                     lambda x: np.asarray(x).astype(object),
+                     lambda x: [(i, i) for i in x],
+                     lambda x: np.asarray([[i, i] for i in x]),
+                     lambda x: np.vstack([x, x]).T,
+                     # gh-11442
+                     lambda x: (np.asarray([(i, i) for i in x],
+                                           [("a", int), ("b", int)])
+                                .view(np.recarray)),
+                     # gh-4270
+                     lambda x: np.asarray([(i, i) for i in x],
+                                          [("a", object), ("b", np.int32)])]:
+            rng = random.RandomState(self.seed)
+            alist = conv([1, 2, 3, 4, 5, 6, 7, 8, 9, 0])
+            rng.shuffle(alist)
+            actual = alist
+            desired = conv([0, 1, 9, 6, 2, 4, 5, 8, 7, 3])
+            assert_array_equal(actual, desired)
+
+    def test_shuffle_masked(self):
+        # gh-3263
+        a = np.ma.masked_values(np.reshape(range(20), (5, 4)) % 3 - 1, -1)
+        b = np.ma.masked_values(np.arange(20) % 3 - 1, -1)
+        a_orig = a.copy()
+        b_orig = b.copy()
+        for i in range(50):
+            np.random.shuffle(a)
+            assert_equal(
+                sorted(a.data[~a.mask]), sorted(a_orig.data[~a_orig.mask]))
+            np.random.shuffle(b)
+            assert_equal(
+                sorted(b.data[~b.mask]), sorted(b_orig.data[~b_orig.mask]))
+
+    @pytest.mark.parametrize("random",
+            [np.random, np.random.RandomState(), np.random.default_rng()])
+    def test_shuffle_untyped_warning(self, random):
+        # Create a dict works like a sequence but isn't one
+        values = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6}
+        with pytest.warns(UserWarning,
+                match="you are shuffling a 'dict' object") as rec:
+            random.shuffle(values)
+        assert "test_random" in rec[0].filename
+
+    @pytest.mark.parametrize("random",
+        [np.random, np.random.RandomState(), np.random.default_rng()])
+    @pytest.mark.parametrize("use_array_like", [True, False])
+    def test_shuffle_no_object_unpacking(self, random, use_array_like):
+        class MyArr(np.ndarray):
+            pass
+
+        items = [
+            None, np.array([3]), np.float64(3), np.array(10), np.float64(7)
+        ]
+        arr = np.array(items, dtype=object)
+        item_ids = {id(i) for i in items}
+        if use_array_like:
+            arr = arr.view(MyArr)
+
+        # The array was created fine, and did not modify any objects:
+        assert all(id(i) in item_ids for i in arr)
+
+        if use_array_like and not isinstance(random, np.random.Generator):
+            # The old API gives incorrect results, but warns about it.
+            with pytest.warns(UserWarning,
+                    match="Shuffling a one dimensional array.*"):
+                random.shuffle(arr)
+        else:
+            random.shuffle(arr)
+            assert all(id(i) in item_ids for i in arr)
+
+    def test_shuffle_memoryview(self):
+        # gh-18273
+        # allow graceful handling of memoryviews
+        # (treat the same as arrays)
+        rng = random.RandomState(self.seed)
+        a = np.arange(5).data
+        rng.shuffle(a)
+        assert_equal(np.asarray(a), [0, 1, 4, 3, 2])
+        rng = random.RandomState(self.seed)
+        rng.shuffle(a)
+        assert_equal(np.asarray(a), [0, 1, 2, 3, 4])
+        rng = np.random.default_rng(self.seed)
+        rng.shuffle(a)
+        assert_equal(np.asarray(a), [4, 1, 0, 3, 2])
+
+    def test_shuffle_not_writeable(self):
+        a = np.zeros(3)
+        a.flags.writeable = False
+        with pytest.raises(ValueError, match='read-only'):
+            np.random.shuffle(a)
+
+    def test_beta(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.beta(.1, .9, size=(3, 2))
+        desired = np.array(
+                [[1.45341850513746058e-02, 5.31297615662868145e-04],
+                 [1.85366619058432324e-06, 4.19214516800110563e-03],
+                 [1.58405155108498093e-04, 1.26252891949397652e-04]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_binomial(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(100, .456, size=(3, 2))
+        desired = np.array([[37, 43],
+                            [42, 48],
+                            [46, 45]])
+        assert_array_equal(actual, desired)
+
+    def test_chisquare(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.chisquare(50, size=(3, 2))
+        desired = np.array([[63.87858175501090585, 68.68407748911370447],
+                            [65.77116116901505904, 47.09686762438974483],
+                            [72.3828403199695174, 74.18408615260374006]])
+        assert_array_almost_equal(actual, desired, decimal=13)
+
+    def test_dirichlet(self):
+        rng = random.RandomState(self.seed)
+        alpha = np.array([51.72840233779265162, 39.74494232180943953])
+        actual = rng.dirichlet(alpha, size=(3, 2))
+        desired = np.array([[[0.54539444573611562, 0.45460555426388438],
+                             [0.62345816822039413, 0.37654183177960598]],
+                            [[0.55206000085785778, 0.44793999914214233],
+                             [0.58964023305154301, 0.41035976694845688]],
+                            [[0.59266909280647828, 0.40733090719352177],
+                             [0.56974431743975207, 0.43025568256024799]]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_dirichlet_size(self):
+        # gh-3173
+        p = np.array([51.72840233779265162, 39.74494232180943953])
+        assert_equal(np.random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(np.random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(np.random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(np.random.dirichlet(p, [2, 2]).shape, (2, 2, 2))
+        assert_equal(np.random.dirichlet(p, (2, 2)).shape, (2, 2, 2))
+        assert_equal(np.random.dirichlet(p, np.array((2, 2))).shape, (2, 2, 2))
+
+        assert_raises(TypeError, np.random.dirichlet, p, float(1))
+
+    def test_dirichlet_bad_alpha(self):
+        # gh-2089
+        alpha = np.array([5.4e-01, -1.0e-16])
+        assert_raises(ValueError, np.random.mtrand.dirichlet, alpha)
+
+        # gh-15876
+        assert_raises(ValueError, random.dirichlet, [[5, 1]])
+        assert_raises(ValueError, random.dirichlet, [[5], [1]])
+        assert_raises(ValueError, random.dirichlet, [[[5], [1]], [[1], [5]]])
+        assert_raises(ValueError, random.dirichlet, np.array([[5, 1], [1, 5]]))
+
+    def test_exponential(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.exponential(1.1234, size=(3, 2))
+        desired = np.array([[1.08342649775011624, 1.00607889924557314],
+                            [2.46628830085216721, 2.49668106809923884],
+                            [0.68717433461363442, 1.69175666993575979]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_exponential_0(self):
+        assert_equal(np.random.exponential(scale=0), 0)
+        assert_raises(ValueError, np.random.exponential, scale=-0.)
+
+    def test_f(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.f(12, 77, size=(3, 2))
+        desired = np.array([[1.21975394418575878, 1.75135759791559775],
+                            [1.44803115017146489, 1.22108959480396262],
+                            [1.02176975757740629, 1.34431827623300415]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_gamma(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.gamma(5, 3, size=(3, 2))
+        desired = np.array([[24.60509188649287182, 28.54993563207210627],
+                            [26.13476110204064184, 12.56988482927716078],
+                            [31.71863275789960568, 33.30143302795922011]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_gamma_0(self):
+        assert_equal(np.random.gamma(shape=0, scale=0), 0)
+        assert_raises(ValueError, np.random.gamma, shape=-0., scale=-0.)
+
+    def test_geometric(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.geometric(.123456789, size=(3, 2))
+        desired = np.array([[8, 7],
+                            [17, 17],
+                            [5, 12]])
+        assert_array_equal(actual, desired)
+
+    def test_gumbel(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.gumbel(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[0.19591898743416816, 0.34405539668096674],
+                            [-1.4492522252274278, -1.47374816298446865],
+                            [1.10651090478803416, -0.69535848626236174]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_gumbel_0(self):
+        assert_equal(np.random.gumbel(scale=0), 0)
+        assert_raises(ValueError, np.random.gumbel, scale=-0.)
+
+    def test_hypergeometric(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(10, 5, 14, size=(3, 2))
+        desired = np.array([[10, 10],
+                            [10, 10],
+                            [9, 9]])
+        assert_array_equal(actual, desired)
+
+        # Test nbad = 0
+        actual = rng.hypergeometric(5, 0, 3, size=4)
+        desired = np.array([3, 3, 3, 3])
+        assert_array_equal(actual, desired)
+
+        actual = rng.hypergeometric(15, 0, 12, size=4)
+        desired = np.array([12, 12, 12, 12])
+        assert_array_equal(actual, desired)
+
+        # Test ngood = 0
+        actual = rng.hypergeometric(0, 5, 3, size=4)
+        desired = np.array([0, 0, 0, 0])
+        assert_array_equal(actual, desired)
+
+        actual = rng.hypergeometric(0, 15, 12, size=4)
+        desired = np.array([0, 0, 0, 0])
+        assert_array_equal(actual, desired)
+
+    def test_laplace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.laplace(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[0.66599721112760157, 0.52829452552221945],
+                            [3.12791959514407125, 3.18202813572992005],
+                            [-0.05391065675859356, 1.74901336242837324]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_laplace_0(self):
+        assert_equal(np.random.laplace(scale=0), 0)
+        assert_raises(ValueError, np.random.laplace, scale=-0.)
+
+    def test_logistic(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.logistic(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[1.09232835305011444, 0.8648196662399954],
+                            [4.27818590694950185, 4.33897006346929714],
+                            [-0.21682183359214885, 2.63373365386060332]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_lognormal(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.lognormal(mean=.123456789, sigma=2.0, size=(3, 2))
+        desired = np.array([[16.50698631688883822, 36.54846706092654784],
+                            [22.67886599981281748, 0.71617561058995771],
+                            [65.72798501792723869, 86.84341601437161273]])
+        assert_array_almost_equal(actual, desired, decimal=13)
+
+    def test_lognormal_0(self):
+        assert_equal(np.random.lognormal(sigma=0), 1)
+        assert_raises(ValueError, np.random.lognormal, sigma=-0.)
+
+    def test_logseries(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.logseries(p=.923456789, size=(3, 2))
+        desired = np.array([[2, 2],
+                            [6, 17],
+                            [3, 6]])
+        assert_array_equal(actual, desired)
+
+    def test_multinomial(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.multinomial(20, [1 / 6.] * 6, size=(3, 2))
+        desired = np.array([[[4, 3, 5, 4, 2, 2],
+                             [5, 2, 8, 2, 2, 1]],
+                            [[3, 4, 3, 6, 0, 4],
+                             [2, 1, 4, 3, 6, 4]],
+                            [[4, 4, 2, 5, 2, 3],
+                             [4, 3, 4, 2, 3, 4]]])
+        assert_array_equal(actual, desired)
+
+    def test_multivariate_normal(self):
+        rng = random.RandomState(self.seed)
+        mean = (.123456789, 10)
+        cov = [[1, 0], [0, 1]]
+        size = (3, 2)
+        actual = rng.multivariate_normal(mean, cov, size)
+        desired = np.array([[[1.463620246718631, 11.73759122771936],
+                             [1.622445133300628, 9.771356667546383]],
+                            [[2.154490787682787, 12.170324946056553],
+                             [1.719909438201865, 9.230548443648306]],
+                            [[0.689515026297799, 9.880729819607714],
+                             [-0.023054015651998, 9.201096623542879]]])
+
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        # Check for default size, was raising deprecation warning
+        actual = rng.multivariate_normal(mean, cov)
+        desired = np.array([0.895289569463708, 9.17180864067987])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        # Check that non positive-semidefinite covariance warns with
+        # RuntimeWarning
+        mean = [0, 0]
+        cov = [[1, 2], [2, 1]]
+        pytest.warns(RuntimeWarning, rng.multivariate_normal, mean, cov)
+
+        # and that it doesn't warn with RuntimeWarning check_valid='ignore'
+        assert_no_warnings(rng.multivariate_normal, mean, cov,
+                           check_valid='ignore')
+
+        # and that it raises with RuntimeWarning check_valid='raises'
+        assert_raises(ValueError, rng.multivariate_normal, mean, cov,
+                      check_valid='raise')
+
+        cov = np.array([[1, 0.1], [0.1, 1]], dtype=np.float32)
+        with warnings.catch_warnings():
+            warnings.simplefilter('error')
+            rng.multivariate_normal(mean, cov)
+
+    def test_negative_binomial(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.negative_binomial(n=100, p=.12345, size=(3, 2))
+        desired = np.array([[848, 841],
+                            [892, 611],
+                            [779, 647]])
+        assert_array_equal(actual, desired)
+
+    def test_noncentral_chisquare(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df=5, nonc=5, size=(3, 2))
+        desired = np.array([[23.91905354498517511, 13.35324692733826346],
+                            [31.22452661329736401, 16.60047399466177254],
+                            [5.03461598262724586, 17.94973089023519464]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        actual = rng.noncentral_chisquare(df=.5, nonc=.2, size=(3, 2))
+        desired = np.array([[1.47145377828516666,  0.15052899268012659],
+                            [0.00943803056963588,  1.02647251615666169],
+                            [0.332334982684171,  0.15451287602753125]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df=5, nonc=0, size=(3, 2))
+        desired = np.array([[9.597154162763948, 11.725484450296079],
+                            [10.413711048138335, 3.694475922923986],
+                            [13.484222138963087, 14.377255424602957]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_noncentral_f(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum=5, dfden=2, nonc=1,
+                                        size=(3, 2))
+        desired = np.array([[1.40598099674926669, 0.34207973179285761],
+                            [3.57715069265772545, 7.92632662577829805],
+                            [0.43741599463544162, 1.1774208752428319]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_normal(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.normal(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[2.80378370443726244, 3.59863924443872163],
+                            [3.121433477601256, -0.33382987590723379],
+                            [4.18552478636557357, 4.46410668111310471]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_normal_0(self):
+        assert_equal(np.random.normal(scale=0), 0)
+        assert_raises(ValueError, np.random.normal, scale=-0.)
+
+    def test_pareto(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.pareto(a=.123456789, size=(3, 2))
+        desired = np.array(
+                [[2.46852460439034849e+03, 1.41286880810518346e+03],
+                 [5.28287797029485181e+07, 6.57720981047328785e+07],
+                 [1.40840323350391515e+02, 1.98390255135251704e+05]])
+        # For some reason on 32-bit x86 Ubuntu 12.10 the [1, 0] entry in this
+        # matrix differs by 24 nulps. Discussion:
+        #   https://mail.python.org/pipermail/numpy-discussion/2012-September/063801.html
+        # Consensus is that this is probably some gcc quirk that affects
+        # rounding but not in any important way, so we just use a looser
+        # tolerance on this test:
+        np.testing.assert_array_almost_equal_nulp(actual, desired, nulp=30)
+
+    def test_poisson(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.poisson(lam=.123456789, size=(3, 2))
+        desired = np.array([[0, 0],
+                            [1, 0],
+                            [0, 0]])
+        assert_array_equal(actual, desired)
+
+    def test_poisson_exceptions(self):
+        lambig = np.iinfo('l').max
+        lamneg = -1
+        assert_raises(ValueError, np.random.poisson, lamneg)
+        assert_raises(ValueError, np.random.poisson, [lamneg] * 10)
+        assert_raises(ValueError, np.random.poisson, lambig)
+        assert_raises(ValueError, np.random.poisson, [lambig] * 10)
+
+    def test_power(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.power(a=.123456789, size=(3, 2))
+        desired = np.array([[0.02048932883240791, 0.01424192241128213],
+                            [0.38446073748535298, 0.39499689943484395],
+                            [0.00177699707563439, 0.13115505880863756]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_rayleigh(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.rayleigh(scale=10, size=(3, 2))
+        desired = np.array([[13.8882496494248393, 13.383318339044731],
+                            [20.95413364294492098, 21.08285015800712614],
+                            [11.06066537006854311, 17.35468505778271009]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_rayleigh_0(self):
+        assert_equal(np.random.rayleigh(scale=0), 0)
+        assert_raises(ValueError, np.random.rayleigh, scale=-0.)
+
+    def test_standard_cauchy(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_cauchy(size=(3, 2))
+        desired = np.array([[0.77127660196445336, -6.55601161955910605],
+                            [0.93582023391158309, -2.07479293013759447],
+                            [-4.74601644297011926, 0.18338989290760804]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_exponential(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_exponential(size=(3, 2))
+        desired = np.array([[0.96441739162374596, 0.89556604882105506],
+                            [2.1953785836319808, 2.22243285392490542],
+                            [0.6116915921431676, 1.50592546727413201]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_gamma(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_gamma(shape=3, size=(3, 2))
+        desired = np.array([[5.50841531318455058, 6.62953470301903103],
+                            [5.93988484943779227, 2.31044849402133989],
+                            [7.54838614231317084, 8.012756093271868]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_standard_gamma_0(self):
+        assert_equal(np.random.standard_gamma(shape=0), 0)
+        assert_raises(ValueError, np.random.standard_gamma, shape=-0.)
+
+    def test_standard_normal(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_normal(size=(3, 2))
+        desired = np.array([[1.34016345771863121, 1.73759122771936081],
+                            [1.498988344300628, -0.2286433324536169],
+                            [2.031033998682787, 2.17032494605655257]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_t(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_t(df=10, size=(3, 2))
+        desired = np.array([[0.97140611862659965, -0.08830486548450577],
+                            [1.36311143689505321, -0.55317463909867071],
+                            [-0.18473749069684214, 0.61181537341755321]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_triangular(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left=5.12, mode=10.23, right=20.34,
+                                      size=(3, 2))
+        desired = np.array([[12.68117178949215784, 12.4129206149193152],
+                            [16.20131377335158263, 16.25692138747600524],
+                            [11.20400690911820263, 14.4978144835829923]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_uniform(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.uniform(low=1.23, high=10.54, size=(3, 2))
+        desired = np.array([[6.99097932346268003, 6.73801597444323974],
+                            [9.50364421400426274, 9.53130618907631089],
+                            [5.48995325769805476, 8.47493103280052118]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_uniform_range_bounds(self):
+        fmin = np.finfo('float').min
+        fmax = np.finfo('float').max
+
+        func = np.random.uniform
+        assert_raises(OverflowError, func, -np.inf, 0)
+        assert_raises(OverflowError, func,  0,      np.inf)
+        assert_raises(OverflowError, func,  fmin,   fmax)
+        assert_raises(OverflowError, func, [-np.inf], [0])
+        assert_raises(OverflowError, func, [0], [np.inf])
+
+        # (fmax / 1e17) - fmin is within range, so this should not throw
+        # account for i386 extended precision DBL_MAX / 1e17 + DBL_MAX >
+        # DBL_MAX by increasing fmin a bit
+        np.random.uniform(low=np.nextafter(fmin, 1), high=fmax / 1e17)
+
+    def test_scalar_exception_propagation(self):
+        # Tests that exceptions are correctly propagated in distributions
+        # when called with objects that throw exceptions when converted to
+        # scalars.
+        #
+        # Regression test for gh: 8865
+
+        class ThrowingFloat(np.ndarray):
+            def __float__(self):
+                raise TypeError
+
+        throwing_float = np.array(1.0).view(ThrowingFloat)
+        assert_raises(TypeError, np.random.uniform, throwing_float,
+                      throwing_float)
+
+        class ThrowingInteger(np.ndarray):
+            def __int__(self):
+                raise TypeError
+
+            __index__ = __int__
+
+        throwing_int = np.array(1).view(ThrowingInteger)
+        assert_raises(TypeError, np.random.hypergeometric, throwing_int, 1, 1)
+
+    def test_vonmises(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu=1.23, kappa=1.54, size=(3, 2))
+        desired = np.array([[2.28567572673902042, 2.89163838442285037],
+                            [0.38198375564286025, 2.57638023113890746],
+                            [1.19153771588353052, 1.83509849681825354]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_vonmises_small(self):
+        # check infinite loop, gh-4720
+        np.random.seed(self.seed)
+        r = np.random.vonmises(mu=0., kappa=1.1e-8, size=10**6)
+        np.testing.assert_(np.isfinite(r).all())
+
+    def test_wald(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.wald(mean=1.23, scale=1.54, size=(3, 2))
+        desired = np.array([[3.82935265715889983, 5.13125249184285526],
+                            [0.35045403618358717, 1.50832396872003538],
+                            [0.24124319895843183, 0.22031101461955038]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_weibull(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.weibull(a=1.23, size=(3, 2))
+        desired = np.array([[0.97097342648766727, 0.91422896443565516],
+                            [1.89517770034962929, 1.91414357960479564],
+                            [0.67057783752390987, 1.39494046635066793]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_weibull_0(self):
+        np.random.seed(self.seed)
+        assert_equal(np.random.weibull(a=0, size=12), np.zeros(12))
+        assert_raises(ValueError, np.random.weibull, a=-0.)
+
+    def test_zipf(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.zipf(a=1.23, size=(3, 2))
+        desired = np.array([[66, 29],
+                            [1, 1],
+                            [3, 13]])
+        assert_array_equal(actual, desired)
+
+
+class TestBroadcast:
+    # tests that functions that broadcast behave
+    # correctly when presented with non-scalar arguments
+    seed = 123456789
+
+    # TODO: Include test for randint once it can broadcast
+    # Can steal the test written in PR #6938
+
+    def test_uniform(self):
+        low = [0]
+        high = [1]
+        desired = np.array([0.53283302478975902,
+                            0.53413660089041659,
+                            0.50955303552646702])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.uniform(low * 3, high)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.uniform(low, high * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_normal(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([2.2129019979039612,
+                            2.1283977976520019,
+                            1.8417114045748335])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.normal(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.normal, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.normal(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.normal, loc, bad_scale * 3)
+
+    def test_beta(self):
+        a = [1]
+        b = [2]
+        bad_a = [-1]
+        bad_b = [-2]
+        desired = np.array([0.19843558305989056,
+                            0.075230336409423643,
+                            0.24976865978980844])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.beta(a * 3, b)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.beta, bad_a * 3, b)
+        assert_raises(ValueError, rng.beta, a * 3, bad_b)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.beta(a, b * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.beta, bad_a, b * 3)
+        assert_raises(ValueError, rng.beta, a, bad_b * 3)
+
+    def test_exponential(self):
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.76106853658845242,
+                            0.76386282278691653,
+                            0.71243813125891797])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.exponential(scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.exponential, bad_scale * 3)
+
+    def test_standard_gamma(self):
+        shape = [1]
+        bad_shape = [-1]
+        desired = np.array([0.76106853658845242,
+                            0.76386282278691653,
+                            0.71243813125891797])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_gamma(shape * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.standard_gamma, bad_shape * 3)
+
+    def test_gamma(self):
+        shape = [1]
+        scale = [2]
+        bad_shape = [-1]
+        bad_scale = [-2]
+        desired = np.array([1.5221370731769048,
+                            1.5277256455738331,
+                            1.4248762625178359])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gamma(shape * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gamma, bad_shape * 3, scale)
+        assert_raises(ValueError, rng.gamma, shape * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gamma(shape, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gamma, bad_shape, scale * 3)
+        assert_raises(ValueError, rng.gamma, shape, bad_scale * 3)
+
+    def test_f(self):
+        dfnum = [1]
+        dfden = [2]
+        bad_dfnum = [-1]
+        bad_dfden = [-2]
+        desired = np.array([0.80038951638264799,
+                            0.86768719635363512,
+                            2.7251095168386801])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.f(dfnum * 3, dfden)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.f, bad_dfnum * 3, dfden)
+        assert_raises(ValueError, rng.f, dfnum * 3, bad_dfden)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.f(dfnum, dfden * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.f, bad_dfnum, dfden * 3)
+        assert_raises(ValueError, rng.f, dfnum, bad_dfden * 3)
+
+    def test_noncentral_f(self):
+        dfnum = [2]
+        dfden = [3]
+        nonc = [4]
+        bad_dfnum = [0]
+        bad_dfden = [-1]
+        bad_nonc = [-2]
+        desired = np.array([9.1393943263705211,
+                            13.025456344595602,
+                            8.8018098359100545])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum * 3, dfden, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_f, bad_dfnum * 3, dfden, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum * 3, bad_dfden, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum * 3, dfden, bad_nonc)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum, dfden * 3, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_f, bad_dfnum, dfden * 3, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, bad_dfden * 3, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, dfden * 3, bad_nonc)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum, dfden, nonc * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_f, bad_dfnum, dfden, nonc * 3)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, bad_dfden, nonc * 3)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, dfden, bad_nonc * 3)
+
+    def test_noncentral_f_small_df(self):
+        rng = random.RandomState(self.seed)
+        desired = np.array([6.869638627492048, 0.785880199263955])
+        actual = rng.noncentral_f(0.9, 0.9, 2, size=2)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_chisquare(self):
+        df = [1]
+        bad_df = [-1]
+        desired = np.array([0.57022801133088286,
+                            0.51947702108840776,
+                            0.1320969254923558])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.chisquare(df * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.chisquare, bad_df * 3)
+
+    def test_noncentral_chisquare(self):
+        df = [1]
+        nonc = [2]
+        bad_df = [-1]
+        bad_nonc = [-2]
+        desired = np.array([9.0015599467913763,
+                            4.5804135049718742,
+                            6.0872302432834564])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df * 3, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_chisquare, bad_df * 3, nonc)
+        assert_raises(ValueError, rng.noncentral_chisquare, df * 3, bad_nonc)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df, nonc * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_chisquare, bad_df, nonc * 3)
+        assert_raises(ValueError, rng.noncentral_chisquare, df, bad_nonc * 3)
+
+    def test_standard_t(self):
+        df = [1]
+        bad_df = [-1]
+        desired = np.array([3.0702872575217643,
+                            5.8560725167361607,
+                            1.0274791436474273])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_t(df * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.standard_t, bad_df * 3)
+
+    def test_vonmises(self):
+        mu = [2]
+        kappa = [1]
+        bad_kappa = [-1]
+        desired = np.array([2.9883443664201312,
+                            -2.7064099483995943,
+                            -1.8672476700665914])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu * 3, kappa)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.vonmises, mu * 3, bad_kappa)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu, kappa * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.vonmises, mu, bad_kappa * 3)
+
+    def test_pareto(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([1.1405622680198362,
+                            1.1465519762044529,
+                            1.0389564467453547])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.pareto(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.pareto, bad_a * 3)
+
+    def test_weibull(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.76106853658845242,
+                            0.76386282278691653,
+                            0.71243813125891797])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.weibull(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.weibull, bad_a * 3)
+
+    def test_power(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.53283302478975902,
+                            0.53413660089041659,
+                            0.50955303552646702])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.power(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.power, bad_a * 3)
+
+    def test_laplace(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.067921356028507157,
+                            0.070715642226971326,
+                            0.019290950698972624])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.laplace(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.laplace, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.laplace(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.laplace, loc, bad_scale * 3)
+
+    def test_gumbel(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.2730318639556768,
+                            0.26936705726291116,
+                            0.33906220393037939])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gumbel(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gumbel, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gumbel(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gumbel, loc, bad_scale * 3)
+
+    def test_logistic(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.13152135837586171,
+                            0.13675915696285773,
+                            0.038216792802833396])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.logistic(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.logistic, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.logistic(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.logistic, loc, bad_scale * 3)
+
+    def test_lognormal(self):
+        mean = [0]
+        sigma = [1]
+        bad_sigma = [-1]
+        desired = np.array([9.1422086044848427,
+                            8.4013952870126261,
+                            6.3073234116578671])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.lognormal(mean * 3, sigma)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.lognormal, mean * 3, bad_sigma)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.lognormal(mean, sigma * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.lognormal, mean, bad_sigma * 3)
+
+    def test_rayleigh(self):
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([1.2337491937897689,
+                            1.2360119924878694,
+                            1.1936818095781789])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.rayleigh(scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.rayleigh, bad_scale * 3)
+
+    def test_wald(self):
+        mean = [0.5]
+        scale = [1]
+        bad_mean = [0]
+        bad_scale = [-2]
+        desired = np.array([0.11873681120271318,
+                            0.12450084820795027,
+                            0.9096122728408238])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.wald(mean * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.wald, bad_mean * 3, scale)
+        assert_raises(ValueError, rng.wald, mean * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.wald(mean, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.wald, bad_mean, scale * 3)
+        assert_raises(ValueError, rng.wald, mean, bad_scale * 3)
+        assert_raises(ValueError, rng.wald, 0.0, 1)
+        assert_raises(ValueError, rng.wald, 0.5, 0.0)
+
+    def test_triangular(self):
+        left = [1]
+        right = [3]
+        mode = [2]
+        bad_left_one = [3]
+        bad_mode_one = [4]
+        bad_left_two, bad_mode_two = right * 2
+        desired = np.array([2.03339048710429,
+                            2.0347400359389356,
+                            2.0095991069536208])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left * 3, mode, right)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.triangular, bad_left_one * 3, mode, right)
+        assert_raises(ValueError, rng.triangular, left * 3, bad_mode_one, right)
+        assert_raises(ValueError, rng.triangular, bad_left_two * 3, bad_mode_two,
+                      right)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left, mode * 3, right)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.triangular, bad_left_one, mode * 3, right)
+        assert_raises(ValueError, rng.triangular, left, bad_mode_one * 3, right)
+        assert_raises(ValueError, rng.triangular, bad_left_two, bad_mode_two * 3,
+                      right)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left, mode, right * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.triangular, bad_left_one, mode, right * 3)
+        assert_raises(ValueError, rng.triangular, left, bad_mode_one, right * 3)
+        assert_raises(ValueError, rng.triangular, bad_left_two, bad_mode_two,
+                      right * 3)
+
+    def test_binomial(self):
+        n = [1]
+        p = [0.5]
+        bad_n = [-1]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([1, 1, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(n * 3, p)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.binomial, bad_n * 3, p)
+        assert_raises(ValueError, rng.binomial, n * 3, bad_p_one)
+        assert_raises(ValueError, rng.binomial, n * 3, bad_p_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(n, p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.binomial, bad_n, p * 3)
+        assert_raises(ValueError, rng.binomial, n, bad_p_one * 3)
+        assert_raises(ValueError, rng.binomial, n, bad_p_two * 3)
+
+    def test_negative_binomial(self):
+        n = [1]
+        p = [0.5]
+        bad_n = [-1]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([1, 0, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.negative_binomial(n * 3, p)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.negative_binomial, bad_n * 3, p)
+        assert_raises(ValueError, rng.negative_binomial, n * 3, bad_p_one)
+        assert_raises(ValueError, rng.negative_binomial, n * 3, bad_p_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.negative_binomial(n, p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.negative_binomial, bad_n, p * 3)
+        assert_raises(ValueError, rng.negative_binomial, n, bad_p_one * 3)
+        assert_raises(ValueError, rng.negative_binomial, n, bad_p_two * 3)
+
+    def test_poisson(self):
+        max_lam = np.random.RandomState()._poisson_lam_max
+
+        lam = [1]
+        bad_lam_one = [-1]
+        bad_lam_two = [max_lam * 2]
+        desired = np.array([1, 1, 0])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.poisson(lam * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.poisson, bad_lam_one * 3)
+        assert_raises(ValueError, rng.poisson, bad_lam_two * 3)
+
+    def test_zipf(self):
+        a = [2]
+        bad_a = [0]
+        desired = np.array([2, 2, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.zipf(a * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.zipf, bad_a * 3)
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, rng.zipf, np.nan)
+            assert_raises(ValueError, rng.zipf, [0, 0, np.nan])
+
+    def test_geometric(self):
+        p = [0.5]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([2, 2, 2])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.geometric(p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.geometric, bad_p_one * 3)
+        assert_raises(ValueError, rng.geometric, bad_p_two * 3)
+
+    def test_hypergeometric(self):
+        ngood = [1]
+        nbad = [2]
+        nsample = [2]
+        bad_ngood = [-1]
+        bad_nbad = [-2]
+        bad_nsample_one = [0]
+        bad_nsample_two = [4]
+        desired = np.array([1, 1, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(ngood * 3, nbad, nsample)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.hypergeometric, bad_ngood * 3, nbad, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood * 3, bad_nbad, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood * 3, nbad, bad_nsample_one)
+        assert_raises(ValueError, rng.hypergeometric, ngood * 3, nbad, bad_nsample_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(ngood, nbad * 3, nsample)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.hypergeometric, bad_ngood, nbad * 3, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood, bad_nbad * 3, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad * 3, bad_nsample_one)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad * 3, bad_nsample_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(ngood, nbad, nsample * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.hypergeometric, bad_ngood, nbad, nsample * 3)
+        assert_raises(ValueError, rng.hypergeometric, ngood, bad_nbad, nsample * 3)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad, bad_nsample_one * 3)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad, bad_nsample_two * 3)
+
+    def test_logseries(self):
+        p = [0.5]
+        bad_p_one = [2]
+        bad_p_two = [-1]
+        desired = np.array([1, 1, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.logseries(p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.logseries, bad_p_one * 3)
+        assert_raises(ValueError, rng.logseries, bad_p_two * 3)
+
+
+@pytest.mark.skipif(IS_WASM, reason="can't start thread")
+class TestThread:
+    # make sure each state produces the same sequence even in threads
+    seeds = range(4)
+
+    def check_function(self, function, sz):
+        from threading import Thread
+
+        out1 = np.empty((len(self.seeds),) + sz)
+        out2 = np.empty((len(self.seeds),) + sz)
+
+        # threaded generation
+        t = [Thread(target=function, args=(np.random.RandomState(s), o))
+             for s, o in zip(self.seeds, out1)]
+        [x.start() for x in t]
+        [x.join() for x in t]
+
+        # the same serial
+        for s, o in zip(self.seeds, out2):
+            function(np.random.RandomState(s), o)
+
+        # these platforms change x87 fpu precision mode in threads
+        if np.intp().dtype.itemsize == 4 and sys.platform == "win32":
+            assert_array_almost_equal(out1, out2)
+        else:
+            assert_array_equal(out1, out2)
+
+    def test_normal(self):
+        def gen_random(state, out):
+            out[...] = state.normal(size=10000)
+        self.check_function(gen_random, sz=(10000,))
+
+    def test_exp(self):
+        def gen_random(state, out):
+            out[...] = state.exponential(scale=np.ones((100, 1000)))
+        self.check_function(gen_random, sz=(100, 1000))
+
+    def test_multinomial(self):
+        def gen_random(state, out):
+            out[...] = state.multinomial(10, [1 / 6.] * 6, size=10000)
+        self.check_function(gen_random, sz=(10000, 6))
+
+
+# See Issue #4263
+class TestSingleEltArrayInput:
+    def _create_arrays(self):
+        return np.array([2]), np.array([3]), np.array([4]), (1,)
+
+    def test_one_arg_funcs(self):
+        argOne, _, _, tgtShape = self._create_arrays()
+        funcs = (np.random.exponential, np.random.standard_gamma,
+                 np.random.chisquare, np.random.standard_t,
+                 np.random.pareto, np.random.weibull,
+                 np.random.power, np.random.rayleigh,
+                 np.random.poisson, np.random.zipf,
+                 np.random.geometric, np.random.logseries)
+
+        probfuncs = (np.random.geometric, np.random.logseries)
+
+        for func in funcs:
+            if func in probfuncs:  # p < 1.0
+                out = func(np.array([0.5]))
+
+            else:
+                out = func(argOne)
+
+            assert_equal(out.shape, tgtShape)
+
+    def test_two_arg_funcs(self):
+        argOne, argTwo, _, tgtShape = self._create_arrays()
+        funcs = (np.random.uniform, np.random.normal,
+                 np.random.beta, np.random.gamma,
+                 np.random.f, np.random.noncentral_chisquare,
+                 np.random.vonmises, np.random.laplace,
+                 np.random.gumbel, np.random.logistic,
+                 np.random.lognormal, np.random.wald,
+                 np.random.binomial, np.random.negative_binomial)
+
+        probfuncs = (np.random.binomial, np.random.negative_binomial)
+
+        for func in funcs:
+            if func in probfuncs:  # p <= 1
+                argTwo = np.array([0.5])
+
+            else:
+                argTwo = argTwo
+
+            out = func(argOne, argTwo)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne[0], argTwo)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne, argTwo[0])
+            assert_equal(out.shape, tgtShape)
+
+    def test_randint(self):
+        _, _, _, tgtShape = self._create_arrays()
+        itype = [bool, np.int8, np.uint8, np.int16, np.uint16,
+                 np.int32, np.uint32, np.int64, np.uint64]
+        func = np.random.randint
+        high = np.array([1])
+        low = np.array([0])
+
+        for dt in itype:
+            out = func(low, high, dtype=dt)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(low[0], high, dtype=dt)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(low, high[0], dtype=dt)
+            assert_equal(out.shape, tgtShape)
+
+    def test_three_arg_funcs(self):
+        argOne, argTwo, argThree, tgtShape = self._create_arrays()
+        funcs = [np.random.noncentral_f, np.random.triangular,
+                 np.random.hypergeometric]
+
+        for func in funcs:
+            out = func(argOne, argTwo, argThree)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne[0], argTwo, argThree)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne, argTwo[0], argThree)
+            assert_equal(out.shape, tgtShape)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_randomstate.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_randomstate.py
new file mode 100644
index 0000000000000000000000000000000000000000..fefce6f54ca5f6e7bbefa7154778efa7eeafaca4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_randomstate.py
@@ -0,0 +1,2099 @@
+import hashlib
+import pickle
+import sys
+import warnings
+
+import pytest
+
+import numpy as np
+from numpy import random
+from numpy.random import MT19937, PCG64
+from numpy.testing import (
+    IS_WASM,
+    assert_,
+    assert_array_almost_equal,
+    assert_array_equal,
+    assert_equal,
+    assert_no_warnings,
+    assert_raises,
+)
+
+INT_FUNCS = {'binomial': (100.0, 0.6),
+             'geometric': (.5,),
+             'hypergeometric': (20, 20, 10),
+             'logseries': (.5,),
+             'multinomial': (20, np.ones(6) / 6.0),
+             'negative_binomial': (100, .5),
+             'poisson': (10.0,),
+             'zipf': (2,),
+             }
+
+if np.iinfo(np.long).max < 2**32:
+    # Windows and some 32-bit platforms, e.g., ARM
+    INT_FUNC_HASHES = {'binomial':          '2fbead005fc63942decb5326d36a1f32fe2c9d32c904ee61e46866b88447c263',  # noqa: E501
+                       'logseries':         '23ead5dcde35d4cfd4ef2c105e4c3d43304b45dc1b1444b7823b9ee4fa144ebb',  # noqa: E501
+                       'geometric':         '0d764db64f5c3bad48c8c33551c13b4d07a1e7b470f77629bef6c985cac76fcf',  # noqa: E501
+                       'hypergeometric':    '7b59bf2f1691626c5815cdcd9a49e1dd68697251d4521575219e4d2a1b8b2c67',  # noqa: E501
+                       'multinomial':       'd754fa5b92943a38ec07630de92362dd2e02c43577fc147417dc5b9db94ccdd3',  # noqa: E501
+                       'negative_binomial': '8eb216f7cb2a63cf55605422845caaff002fddc64a7dc8b2d45acd477a49e824',  # noqa: E501
+                       'poisson':           '70c891d76104013ebd6f6bcf30d403a9074b886ff62e4e6b8eb605bf1a4673b7',  # noqa: E501
+                       'zipf':              '01f074f97517cd5d21747148ac6ca4074dde7fcb7acbaec0a936606fecacd93f',  # noqa: E501
+                       }
+else:
+    INT_FUNC_HASHES = {'binomial':          '8626dd9d052cb608e93d8868de0a7b347258b199493871a1dc56e2a26cacb112',  # noqa: E501
+                       'geometric':         '8edd53d272e49c4fc8fbbe6c7d08d563d62e482921f3131d0a0e068af30f0db9',  # noqa: E501
+                       'hypergeometric':    '83496cc4281c77b786c9b7ad88b74d42e01603a55c60577ebab81c3ba8d45657',  # noqa: E501
+                       'logseries':         '65878a38747c176bc00e930ebafebb69d4e1e16cd3a704e264ea8f5e24f548db',  # noqa: E501
+                       'multinomial':       '7a984ae6dca26fd25374479e118b22f55db0aedccd5a0f2584ceada33db98605',  # noqa: E501
+                       'negative_binomial': 'd636d968e6a24ae92ab52fe11c46ac45b0897e98714426764e820a7d77602a61',  # noqa: E501
+                       'poisson':           '956552176f77e7c9cb20d0118fc9cf690be488d790ed4b4c4747b965e61b0bb4',  # noqa: E501
+                       'zipf':              'f84ba7feffda41e606e20b28dfc0f1ea9964a74574513d4a4cbc98433a8bfa45',  # noqa: E501
+                       }
+
+
+@pytest.fixture(scope='module', params=INT_FUNCS)
+def int_func(request):
+    return (request.param, INT_FUNCS[request.param],
+            INT_FUNC_HASHES[request.param])
+
+
+@pytest.fixture
+def restore_singleton_bitgen():
+    """Ensures that the singleton bitgen is restored after a test"""
+    orig_bitgen = np.random.get_bit_generator()
+    yield
+    np.random.set_bit_generator(orig_bitgen)
+
+
+def assert_mt19937_state_equal(a, b):
+    assert_equal(a['bit_generator'], b['bit_generator'])
+    assert_array_equal(a['state']['key'], b['state']['key'])
+    assert_array_equal(a['state']['pos'], b['state']['pos'])
+    assert_equal(a['has_gauss'], b['has_gauss'])
+    assert_equal(a['gauss'], b['gauss'])
+
+
+class TestSeed:
+    def test_scalar(self):
+        s = random.RandomState(0)
+        assert_equal(s.randint(1000), 684)
+        s = random.RandomState(4294967295)
+        assert_equal(s.randint(1000), 419)
+
+    def test_array(self):
+        s = random.RandomState(range(10))
+        assert_equal(s.randint(1000), 468)
+        s = random.RandomState(np.arange(10))
+        assert_equal(s.randint(1000), 468)
+        s = random.RandomState([0])
+        assert_equal(s.randint(1000), 973)
+        s = random.RandomState([4294967295])
+        assert_equal(s.randint(1000), 265)
+
+    def test_invalid_scalar(self):
+        # seed must be an unsigned 32 bit integer
+        assert_raises(TypeError, random.RandomState, -0.5)
+        assert_raises(ValueError, random.RandomState, -1)
+
+    def test_invalid_array(self):
+        # seed must be an unsigned 32 bit integer
+        assert_raises(TypeError, random.RandomState, [-0.5])
+        assert_raises(ValueError, random.RandomState, [-1])
+        assert_raises(ValueError, random.RandomState, [4294967296])
+        assert_raises(ValueError, random.RandomState, [1, 2, 4294967296])
+        assert_raises(ValueError, random.RandomState, [1, -2, 4294967296])
+
+    def test_invalid_array_shape(self):
+        # gh-9832
+        assert_raises(ValueError, random.RandomState, np.array([],
+                                                               dtype=np.int64))
+        assert_raises(ValueError, random.RandomState, [[1, 2, 3]])
+        assert_raises(ValueError, random.RandomState, [[1, 2, 3],
+                                                       [4, 5, 6]])
+
+    def test_cannot_seed(self):
+        rs = random.RandomState(PCG64(0))
+        with assert_raises(TypeError):
+            rs.seed(1234)
+
+    def test_invalid_initialization(self):
+        assert_raises(ValueError, random.RandomState, MT19937)
+
+
+class TestBinomial:
+    def test_n_zero(self):
+        # Tests the corner case of n == 0 for the binomial distribution.
+        # binomial(0, p) should be zero for any p in [0, 1].
+        # This test addresses issue #3480.
+        zeros = np.zeros(2, dtype='int')
+        for p in [0, .5, 1]:
+            assert_(random.binomial(0, p) == 0)
+            assert_array_equal(random.binomial(zeros, p), zeros)
+
+    def test_p_is_nan(self):
+        # Issue #4571.
+        assert_raises(ValueError, random.binomial, 1, np.nan)
+
+
+class TestMultinomial:
+    def test_basic(self):
+        random.multinomial(100, [0.2, 0.8])
+
+    def test_zero_probability(self):
+        random.multinomial(100, [0.2, 0.8, 0.0, 0.0, 0.0])
+
+    def test_int_negative_interval(self):
+        assert_(-5 <= random.randint(-5, -1) < -1)
+        x = random.randint(-5, -1, 5)
+        assert_(np.all(-5 <= x))
+        assert_(np.all(x < -1))
+
+    def test_size(self):
+        # gh-3173
+        p = [0.5, 0.5]
+        assert_equal(random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.multinomial(1, p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.multinomial(1, p, [2, 2]).shape, (2, 2, 2))
+        assert_equal(random.multinomial(1, p, (2, 2)).shape, (2, 2, 2))
+        assert_equal(random.multinomial(1, p, np.array((2, 2))).shape,
+                     (2, 2, 2))
+
+        assert_raises(TypeError, random.multinomial, 1, p,
+                      float(1))
+
+    def test_invalid_prob(self):
+        assert_raises(ValueError, random.multinomial, 100, [1.1, 0.2])
+        assert_raises(ValueError, random.multinomial, 100, [-.1, 0.9])
+
+    def test_invalid_n(self):
+        assert_raises(ValueError, random.multinomial, -1, [0.8, 0.2])
+
+    def test_p_non_contiguous(self):
+        p = np.arange(15.)
+        p /= np.sum(p[1::3])
+        pvals = p[1::3]
+        rng = random.RandomState(1432985819)
+        non_contig = rng.multinomial(100, pvals=pvals)
+        rng = random.RandomState(1432985819)
+        contig = rng.multinomial(100, pvals=np.ascontiguousarray(pvals))
+        assert_array_equal(non_contig, contig)
+
+    def test_multinomial_pvals_float32(self):
+        x = np.array([9.9e-01, 9.9e-01, 1.0e-09, 1.0e-09, 1.0e-09, 1.0e-09,
+                      1.0e-09, 1.0e-09, 1.0e-09, 1.0e-09], dtype=np.float32)
+        pvals = x / x.sum()
+        match = r"[\w\s]*pvals array is cast to 64-bit floating"
+        with pytest.raises(ValueError, match=match):
+            random.multinomial(1, pvals)
+
+    def test_multinomial_n_float(self):
+        # Non-index integer types should gracefully truncate floats
+        random.multinomial(100.5, [0.2, 0.8])
+
+
+class TestSetState:
+    def _create_state(self):
+        seed = 1234567890
+        random_state = random.RandomState(seed)
+        state = random_state.get_state()
+        return random_state, state
+
+    def test_basic(self):
+        random_state, state = self._create_state()
+        old = random_state.tomaxint(16)
+        random_state.set_state(state)
+        new = random_state.tomaxint(16)
+        assert_(np.all(old == new))
+
+    def test_gaussian_reset(self):
+        # Make sure the cached every-other-Gaussian is reset.
+        random_state, state = self._create_state()
+        old = random_state.standard_normal(size=3)
+        random_state.set_state(state)
+        new = random_state.standard_normal(size=3)
+        assert_(np.all(old == new))
+
+    def test_gaussian_reset_in_media_res(self):
+        # When the state is saved with a cached Gaussian, make sure the
+        # cached Gaussian is restored.
+        random_state, state = self._create_state()
+        random_state.standard_normal()
+        state = random_state.get_state()
+        old = random_state.standard_normal(size=3)
+        random_state.set_state(state)
+        new = random_state.standard_normal(size=3)
+        assert_(np.all(old == new))
+
+    def test_backwards_compatibility(self):
+        # Make sure we can accept old state tuples that do not have the
+        # cached Gaussian value.
+        random_state, state = self._create_state()
+        old_state = state[:-2]
+        x1 = random_state.standard_normal(size=16)
+        random_state.set_state(old_state)
+        x2 = random_state.standard_normal(size=16)
+        random_state.set_state(state)
+        x3 = random_state.standard_normal(size=16)
+        assert_(np.all(x1 == x2))
+        assert_(np.all(x1 == x3))
+
+    def test_negative_binomial(self):
+        # Ensure that the negative binomial results take floating point
+        # arguments without truncation.
+        random_state, _ = self._create_state()
+        random_state.negative_binomial(0.5, 0.5)
+
+    def test_get_state_warning(self):
+        rs = random.RandomState(PCG64())
+        with pytest.warns(RuntimeWarning):
+            state = rs.get_state()
+        assert isinstance(state, dict)
+        assert state['bit_generator'] == 'PCG64'
+
+    def test_invalid_legacy_state_setting(self):
+        random_state, state = self._create_state()
+        state = random_state.get_state()
+        new_state = ('Unknown', ) + state[1:]
+        assert_raises(ValueError, random_state.set_state, new_state)
+        assert_raises(TypeError, random_state.set_state,
+                      np.array(new_state, dtype=object))
+        state = random_state.get_state(legacy=False)
+        del state['bit_generator']
+        assert_raises(ValueError, random_state.set_state, state)
+
+    def test_pickle(self):
+        random_state, _ = self._create_state()
+        random_state.seed(0)
+        random_state.random_sample(100)
+        random_state.standard_normal()
+        pickled = random_state.get_state(legacy=False)
+        assert_equal(pickled['has_gauss'], 1)
+        rs_unpick = pickle.loads(pickle.dumps(random_state))
+        unpickled = rs_unpick.get_state(legacy=False)
+        assert_mt19937_state_equal(pickled, unpickled)
+
+    def test_state_setting(self):
+        random_state, state = self._create_state()
+        attr_state = random_state.__getstate__()
+        random_state.standard_normal()
+        random_state.__setstate__(attr_state)
+        state = random_state.get_state(legacy=False)
+        assert_mt19937_state_equal(attr_state, state)
+
+    def test_repr(self):
+        random_state, _ = self._create_state()
+        assert repr(random_state).startswith('RandomState(MT19937)')
+
+
+class TestRandint:
+
+    # valid integer/boolean types
+    itype = [np.bool, np.int8, np.uint8, np.int16, np.uint16,
+             np.int32, np.uint32, np.int64, np.uint64]
+
+    def test_unsupported_type(self):
+        rng = np.random.RandomState()
+        assert_raises(TypeError, rng.randint, 1, dtype=float)
+
+    def test_bounds_checking(self):
+        rng = np.random.RandomState()
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+            assert_raises(ValueError, rng.randint, lbnd - 1, ubnd, dtype=dt)
+            assert_raises(ValueError, rng.randint, lbnd, ubnd + 1, dtype=dt)
+            assert_raises(ValueError, rng.randint, ubnd, lbnd, dtype=dt)
+            assert_raises(ValueError, rng.randint, 1, 0, dtype=dt)
+
+    def test_rng_zero_and_extremes(self):
+        rng = np.random.RandomState()
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+
+            tgt = ubnd - 1
+            assert_equal(rng.randint(tgt, tgt + 1, size=1000, dtype=dt), tgt)
+
+            tgt = lbnd
+            assert_equal(rng.randint(tgt, tgt + 1, size=1000, dtype=dt), tgt)
+
+            tgt = (lbnd + ubnd) // 2
+            assert_equal(rng.randint(tgt, tgt + 1, size=1000, dtype=dt), tgt)
+
+    def test_full_range(self):
+        # Test for ticket #1690
+        rng = np.random.RandomState()
+
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+
+            try:
+                rng.randint(lbnd, ubnd, dtype=dt)
+            except Exception as e:
+                raise AssertionError("No error should have been raised, "
+                                     "but one was with the following "
+                                     "message:\n\n%s" % str(e))
+
+    def test_in_bounds_fuzz(self):
+        # Don't use fixed seed
+        rng = np.random.RandomState()
+
+        for dt in self.itype[1:]:
+            for ubnd in [4, 8, 16]:
+                vals = rng.randint(2, ubnd, size=2**16, dtype=dt)
+                assert_(vals.max() < ubnd)
+                assert_(vals.min() >= 2)
+
+        vals = rng.randint(0, 2, size=2**16, dtype=np.bool)
+
+        assert_(vals.max() < 2)
+        assert_(vals.min() >= 0)
+
+    def test_repeatability(self):
+        # We use a sha256 hash of generated sequences of 1000 samples
+        # in the range [0, 6) for all but bool, where the range
+        # is [0, 2). Hashes are for little endian numbers.
+        tgt = {'bool':   '509aea74d792fb931784c4b0135392c65aec64beee12b0cc167548a2c3d31e71',  # noqa: E501
+               'int16':  '7b07f1a920e46f6d0fe02314155a2330bcfd7635e708da50e536c5ebb631a7d4',  # noqa: E501
+               'int32':  'e577bfed6c935de944424667e3da285012e741892dcb7051a8f1ce68ab05c92f',  # noqa: E501
+               'int64':  '0fbead0b06759df2cfb55e43148822d4a1ff953c7eb19a5b08445a63bb64fa9e',  # noqa: E501
+               'int8':   '001aac3a5acb935a9b186cbe14a1ca064b8bb2dd0b045d48abeacf74d0203404',  # noqa: E501
+               'uint16': '7b07f1a920e46f6d0fe02314155a2330bcfd7635e708da50e536c5ebb631a7d4',  # noqa: E501
+               'uint32': 'e577bfed6c935de944424667e3da285012e741892dcb7051a8f1ce68ab05c92f',  # noqa: E501
+               'uint64': '0fbead0b06759df2cfb55e43148822d4a1ff953c7eb19a5b08445a63bb64fa9e',  # noqa: E501
+               'uint8':  '001aac3a5acb935a9b186cbe14a1ca064b8bb2dd0b045d48abeacf74d0203404'}  # noqa: E501
+
+        for dt in self.itype[1:]:
+            rng = random.RandomState(1234)
+
+            # view as little endian for hash
+            if sys.byteorder == 'little':
+                val = rng.randint(0, 6, size=1000, dtype=dt)
+            else:
+                val = rng.randint(0, 6, size=1000, dtype=dt).byteswap()
+
+            res = hashlib.sha256(val.view(np.int8)).hexdigest()
+            assert_(tgt[np.dtype(dt).name] == res)
+
+        # bools do not depend on endianness
+        rng = random.RandomState(1234)
+        val = rng.randint(0, 2, size=1000, dtype=bool).view(np.int8)
+        res = hashlib.sha256(val).hexdigest()
+        assert_(tgt[np.dtype(bool).name] == res)
+
+    @pytest.mark.skipif(np.iinfo('l').max < 2**32,
+                        reason='Cannot test with 32-bit C long')
+    def test_repeatability_32bit_boundary_broadcasting(self):
+        desired = np.array([[[3992670689, 2438360420, 2557845020],
+                             [4107320065, 4142558326, 3216529513],
+                             [1605979228, 2807061240,  665605495]],
+                            [[3211410639, 4128781000,  457175120],
+                             [1712592594, 1282922662, 3081439808],
+                             [3997822960, 2008322436, 1563495165]],
+                            [[1398375547, 4269260146,  115316740],
+                             [3414372578, 3437564012, 2112038651],
+                             [3572980305, 2260248732, 3908238631]],
+                            [[2561372503,  223155946, 3127879445],
+                             [ 441282060, 3514786552, 2148440361],
+                             [1629275283, 3479737011, 3003195987]],
+                            [[ 412181688,  940383289, 3047321305],
+                             [2978368172,  764731833, 2282559898],
+                             [ 105711276,  720447391, 3596512484]]])
+        for size in [None, (5, 3, 3)]:
+            rng = random.RandomState(12345)
+            x = rng.randint([[-1], [0], [1]], [2**32 - 1, 2**32, 2**32 + 1],
+                           size=size)
+            assert_array_equal(x, desired if size is not None else desired[0])
+
+    def test_int64_uint64_corner_case(self):
+        # When stored in Numpy arrays, `lbnd` is casted
+        # as np.int64, and `ubnd` is casted as np.uint64.
+        # Checking whether `lbnd` >= `ubnd` used to be
+        # done solely via direct comparison, which is incorrect
+        # because when Numpy tries to compare both numbers,
+        # it casts both to np.float64 because there is
+        # no integer superset of np.int64 and np.uint64. However,
+        # `ubnd` is too large to be represented in np.float64,
+        # causing it be round down to np.iinfo(np.int64).max,
+        # leading to a ValueError because `lbnd` now equals
+        # the new `ubnd`.
+
+        dt = np.int64
+        tgt = np.iinfo(np.int64).max
+        lbnd = np.int64(np.iinfo(np.int64).max)
+        ubnd = np.uint64(np.iinfo(np.int64).max + 1)
+
+        # None of these function calls should
+        # generate a ValueError now.
+        actual = random.randint(lbnd, ubnd, dtype=dt)
+        assert_equal(actual, tgt)
+
+    def test_respect_dtype_singleton(self):
+        # See gh-7203
+        rng = np.random.RandomState()
+
+        for dt in self.itype:
+            lbnd = 0 if dt is np.bool else np.iinfo(dt).min
+            ubnd = 2 if dt is np.bool else np.iinfo(dt).max + 1
+
+            sample = rng.randint(lbnd, ubnd, dtype=dt)
+            assert_equal(sample.dtype, np.dtype(dt))
+
+        for dt in (bool, int):
+            # The legacy random generation forces the use of "long" on this
+            # branch even when the input is `int` and the default dtype
+            # for int changed (dtype=int is also the functions default)
+            op_dtype = "long" if dt is int else "bool"
+            lbnd = 0 if dt is bool else np.iinfo(op_dtype).min
+            ubnd = 2 if dt is bool else np.iinfo(op_dtype).max + 1
+
+            sample = rng.randint(lbnd, ubnd, dtype=dt)
+            assert_(not hasattr(sample, 'dtype'))
+            assert_equal(type(sample), dt)
+
+
+class TestRandomDist:
+    # Make sure the random distribution returns the correct value for a
+    # given seed
+    seed = 1234567890
+
+    def test_rand(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.rand(3, 2)
+        desired = np.array([[0.61879477158567997, 0.59162362775974664],
+                            [0.88868358904449662, 0.89165480011560816],
+                            [0.4575674820298663, 0.7781880808593471]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_rand_singleton(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.rand()
+        desired = 0.61879477158567997
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_randn(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.randn(3, 2)
+        desired = np.array([[1.34016345771863121, 1.73759122771936081],
+                           [1.498988344300628, -0.2286433324536169],
+                           [2.031033998682787, 2.17032494605655257]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.randn()
+        assert_array_almost_equal(actual, desired[0, 0], decimal=15)
+
+    def test_randint(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.randint(-99, 99, size=(3, 2))
+        desired = np.array([[31, 3],
+                            [-52, 41],
+                            [-48, -66]])
+        assert_array_equal(actual, desired)
+
+    def test_random_integers(self):
+        rng = random.RandomState(self.seed)
+        with pytest.warns(DeprecationWarning):
+            actual = rng.random_integers(-99, 99, size=(3, 2))
+        desired = np.array([[31, 3],
+                            [-52, 41],
+                            [-48, -66]])
+        assert_array_equal(actual, desired)
+
+        rng = random.RandomState(self.seed)
+        with pytest.warns(DeprecationWarning):
+            actual = rng.random_integers(198, size=(3, 2))
+        assert_array_equal(actual, desired + 100)
+
+    def test_tomaxint(self):
+        rs = random.RandomState(self.seed)
+        actual = rs.tomaxint(size=(3, 2))
+        if np.iinfo(np.long).max == 2147483647:
+            desired = np.array([[1328851649,  731237375],
+                                [1270502067,  320041495],
+                                [1908433478,  499156889]], dtype=np.int64)
+        else:
+            desired = np.array([[5707374374421908479, 5456764827585442327],
+                                [8196659375100692377, 8224063923314595285],
+                                [4220315081820346526, 7177518203184491332]],
+                               dtype=np.int64)
+
+        assert_equal(actual, desired)
+
+        rs.seed(self.seed)
+        actual = rs.tomaxint()
+        assert_equal(actual, desired[0, 0])
+
+    def test_random_integers_max_int(self):
+        # Tests whether random_integers can generate the
+        # maximum allowed Python int that can be converted
+        # into a C long. Previous implementations of this
+        # method have thrown an OverflowError when attempting
+        # to generate this integer.
+        with pytest.warns(DeprecationWarning):
+            actual = random.random_integers(np.iinfo('l').max,
+                                            np.iinfo('l').max)
+
+        desired = np.iinfo('l').max
+        assert_equal(actual, desired)
+        with pytest.warns(DeprecationWarning):
+            typer = np.dtype('l').type
+            actual = random.random_integers(typer(np.iinfo('l').max),
+                                            typer(np.iinfo('l').max))
+        assert_equal(actual, desired)
+
+    def test_random_integers_deprecated(self):
+        with warnings.catch_warnings():
+            warnings.simplefilter("error", DeprecationWarning)
+
+            # DeprecationWarning raised with high == None
+            assert_raises(DeprecationWarning,
+                          random.random_integers,
+                          np.iinfo('l').max)
+
+            # DeprecationWarning raised with high != None
+            assert_raises(DeprecationWarning,
+                          random.random_integers,
+                          np.iinfo('l').max, np.iinfo('l').max)
+
+    def test_random_sample(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.random_sample((3, 2))
+        desired = np.array([[0.61879477158567997, 0.59162362775974664],
+                            [0.88868358904449662, 0.89165480011560816],
+                            [0.4575674820298663, 0.7781880808593471]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.random_sample()
+        assert_array_almost_equal(actual, desired[0, 0], decimal=15)
+
+    def test_choice_uniform_replace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 4)
+        desired = np.array([2, 3, 2, 3])
+        assert_array_equal(actual, desired)
+
+    def test_choice_nonuniform_replace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 4, p=[0.4, 0.4, 0.1, 0.1])
+        desired = np.array([1, 1, 2, 2])
+        assert_array_equal(actual, desired)
+
+    def test_choice_uniform_noreplace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 3, replace=False)
+        desired = np.array([0, 1, 3])
+        assert_array_equal(actual, desired)
+
+    def test_choice_nonuniform_noreplace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(4, 3, replace=False, p=[0.1, 0.3, 0.5, 0.1])
+        desired = np.array([2, 3, 1])
+        assert_array_equal(actual, desired)
+
+    def test_choice_noninteger(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.choice(['a', 'b', 'c', 'd'], 4)
+        desired = np.array(['c', 'd', 'c', 'd'])
+        assert_array_equal(actual, desired)
+
+    def test_choice_exceptions(self):
+        sample = random.choice
+        assert_raises(ValueError, sample, -1, 3)
+        assert_raises(ValueError, sample, 3., 3)
+        assert_raises(ValueError, sample, [[1, 2], [3, 4]], 3)
+        assert_raises(ValueError, sample, [], 3)
+        assert_raises(ValueError, sample, [1, 2, 3, 4], 3,
+                      p=[[0.25, 0.25], [0.25, 0.25]])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[0.4, 0.4, 0.2])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[1.1, -0.1])
+        assert_raises(ValueError, sample, [1, 2], 3, p=[0.4, 0.4])
+        assert_raises(ValueError, sample, [1, 2, 3], 4, replace=False)
+        # gh-13087
+        assert_raises(ValueError, sample, [1, 2, 3], -2, replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], (-1,), replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], (-1, 1), replace=False)
+        assert_raises(ValueError, sample, [1, 2, 3], 2,
+                      replace=False, p=[1, 0, 0])
+
+    def test_choice_return_shape(self):
+        p = [0.1, 0.9]
+        # Check scalar
+        assert_(np.isscalar(random.choice(2, replace=True)))
+        assert_(np.isscalar(random.choice(2, replace=False)))
+        assert_(np.isscalar(random.choice(2, replace=True, p=p)))
+        assert_(np.isscalar(random.choice(2, replace=False, p=p)))
+        assert_(np.isscalar(random.choice([1, 2], replace=True)))
+        assert_(random.choice([None], replace=True) is None)
+        a = np.array([1, 2])
+        arr = np.empty(1, dtype=object)
+        arr[0] = a
+        assert_(random.choice(arr, replace=True) is a)
+
+        # Check 0-d array
+        s = ()
+        assert_(not np.isscalar(random.choice(2, s, replace=True)))
+        assert_(not np.isscalar(random.choice(2, s, replace=False)))
+        assert_(not np.isscalar(random.choice(2, s, replace=True, p=p)))
+        assert_(not np.isscalar(random.choice(2, s, replace=False, p=p)))
+        assert_(not np.isscalar(random.choice([1, 2], s, replace=True)))
+        assert_(random.choice([None], s, replace=True).ndim == 0)
+        a = np.array([1, 2])
+        arr = np.empty(1, dtype=object)
+        arr[0] = a
+        assert_(random.choice(arr, s, replace=True).item() is a)
+
+        # Check multi dimensional array
+        s = (2, 3)
+        p = [0.1, 0.1, 0.1, 0.1, 0.4, 0.2]
+        assert_equal(random.choice(6, s, replace=True).shape, s)
+        assert_equal(random.choice(6, s, replace=False).shape, s)
+        assert_equal(random.choice(6, s, replace=True, p=p).shape, s)
+        assert_equal(random.choice(6, s, replace=False, p=p).shape, s)
+        assert_equal(random.choice(np.arange(6), s, replace=True).shape, s)
+
+        # Check zero-size
+        assert_equal(random.randint(0, 0, size=(3, 0, 4)).shape, (3, 0, 4))
+        assert_equal(random.randint(0, -10, size=0).shape, (0,))
+        assert_equal(random.randint(10, 10, size=0).shape, (0,))
+        assert_equal(random.choice(0, size=0).shape, (0,))
+        assert_equal(random.choice([], size=(0,)).shape, (0,))
+        assert_equal(random.choice(['a', 'b'], size=(3, 0, 4)).shape,
+                     (3, 0, 4))
+        assert_raises(ValueError, random.choice, [], 10)
+
+    def test_choice_nan_probabilities(self):
+        a = np.array([42, 1, 2])
+        p = [None, None, None]
+        assert_raises(ValueError, random.choice, a, p=p)
+
+    def test_choice_p_non_contiguous(self):
+        p = np.ones(10) / 5
+        p[1::2] = 3.0
+        rng = random.RandomState(self.seed)
+        non_contig = rng.choice(5, 3, p=p[::2])
+        rng = random.RandomState(self.seed)
+        contig = rng.choice(5, 3, p=np.ascontiguousarray(p[::2]))
+        assert_array_equal(non_contig, contig)
+
+    def test_bytes(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.bytes(10)
+        desired = b'\x82Ui\x9e\xff\x97+Wf\xa5'
+        assert_equal(actual, desired)
+
+    def test_shuffle(self):
+        # Test lists, arrays (of various dtypes), and multidimensional versions
+        # of both, c-contiguous or not:
+        for conv in [lambda x: np.array([]),
+                     lambda x: x,
+                     lambda x: np.asarray(x).astype(np.int8),
+                     lambda x: np.asarray(x).astype(np.float32),
+                     lambda x: np.asarray(x).astype(np.complex64),
+                     lambda x: np.asarray(x).astype(object),
+                     lambda x: [(i, i) for i in x],
+                     lambda x: np.asarray([[i, i] for i in x]),
+                     lambda x: np.vstack([x, x]).T,
+                     # gh-11442
+                     lambda x: (np.asarray([(i, i) for i in x],
+                                           [("a", int), ("b", int)])
+                                .view(np.recarray)),
+                     # gh-4270
+                     lambda x: np.asarray([(i, i) for i in x],
+                                          [("a", object, (1,)),
+                                           ("b", np.int32, (1,))])]:
+            rng = random.RandomState(self.seed)
+            alist = conv([1, 2, 3, 4, 5, 6, 7, 8, 9, 0])
+            rng.shuffle(alist)
+            actual = alist
+            desired = conv([0, 1, 9, 6, 2, 4, 5, 8, 7, 3])
+            assert_array_equal(actual, desired)
+
+    def test_shuffle_masked(self):
+        # gh-3263
+        a = np.ma.masked_values(np.reshape(range(20), (5, 4)) % 3 - 1, -1)
+        b = np.ma.masked_values(np.arange(20) % 3 - 1, -1)
+        a_orig = a.copy()
+        b_orig = b.copy()
+        for i in range(50):
+            random.shuffle(a)
+            assert_equal(
+                sorted(a.data[~a.mask]), sorted(a_orig.data[~a_orig.mask]))
+            random.shuffle(b)
+            assert_equal(
+                sorted(b.data[~b.mask]), sorted(b_orig.data[~b_orig.mask]))
+
+        def test_shuffle_invalid_objects(self):
+            x = np.array(3)
+            assert_raises(TypeError, random.shuffle, x)
+
+    def test_permutation(self):
+        rng = random.RandomState(self.seed)
+        alist = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
+        actual = rng.permutation(alist)
+        desired = [0, 1, 9, 6, 2, 4, 5, 8, 7, 3]
+        assert_array_equal(actual, desired)
+
+        rng = random.RandomState(self.seed)
+        arr_2d = np.atleast_2d([1, 2, 3, 4, 5, 6, 7, 8, 9, 0]).T
+        actual = rng.permutation(arr_2d)
+        assert_array_equal(actual, np.atleast_2d(desired).T)
+
+        rng = random.RandomState(self.seed)
+        bad_x_str = "abcd"
+        assert_raises(IndexError, random.permutation, bad_x_str)
+
+        rng = random.RandomState(self.seed)
+        bad_x_float = 1.2
+        assert_raises(IndexError, random.permutation, bad_x_float)
+
+        integer_val = 10
+        desired = [9, 0, 8, 5, 1, 3, 4, 7, 6, 2]
+
+        rng = random.RandomState(self.seed)
+        actual = rng.permutation(integer_val)
+        assert_array_equal(actual, desired)
+
+    def test_beta(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.beta(.1, .9, size=(3, 2))
+        desired = np.array(
+                [[1.45341850513746058e-02, 5.31297615662868145e-04],
+                 [1.85366619058432324e-06, 4.19214516800110563e-03],
+                 [1.58405155108498093e-04, 1.26252891949397652e-04]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_binomial(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(100.123, .456, size=(3, 2))
+        desired = np.array([[37, 43],
+                            [42, 48],
+                            [46, 45]])
+        assert_array_equal(actual, desired)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(100.123, .456)
+        desired = 37
+        assert_array_equal(actual, desired)
+
+    def test_chisquare(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.chisquare(50, size=(3, 2))
+        desired = np.array([[63.87858175501090585, 68.68407748911370447],
+                            [65.77116116901505904, 47.09686762438974483],
+                            [72.3828403199695174, 74.18408615260374006]])
+        assert_array_almost_equal(actual, desired, decimal=13)
+
+    def test_dirichlet(self):
+        rng = random.RandomState(self.seed)
+        alpha = np.array([51.72840233779265162, 39.74494232180943953])
+        actual = rng.dirichlet(alpha, size=(3, 2))
+        desired = np.array([[[0.54539444573611562, 0.45460555426388438],
+                             [0.62345816822039413, 0.37654183177960598]],
+                            [[0.55206000085785778, 0.44793999914214233],
+                             [0.58964023305154301, 0.41035976694845688]],
+                            [[0.59266909280647828, 0.40733090719352177],
+                             [0.56974431743975207, 0.43025568256024799]]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+        bad_alpha = np.array([5.4e-01, -1.0e-16])
+        assert_raises(ValueError, random.dirichlet, bad_alpha)
+
+        rng = random.RandomState(self.seed)
+        alpha = np.array([51.72840233779265162, 39.74494232180943953])
+        actual = rng.dirichlet(alpha)
+        assert_array_almost_equal(actual, desired[0, 0], decimal=15)
+
+    def test_dirichlet_size(self):
+        # gh-3173
+        p = np.array([51.72840233779265162, 39.74494232180943953])
+        assert_equal(random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.dirichlet(p, np.uint32(1)).shape, (1, 2))
+        assert_equal(random.dirichlet(p, [2, 2]).shape, (2, 2, 2))
+        assert_equal(random.dirichlet(p, (2, 2)).shape, (2, 2, 2))
+        assert_equal(random.dirichlet(p, np.array((2, 2))).shape, (2, 2, 2))
+
+        assert_raises(TypeError, random.dirichlet, p, float(1))
+
+    def test_dirichlet_bad_alpha(self):
+        # gh-2089
+        alpha = np.array([5.4e-01, -1.0e-16])
+        assert_raises(ValueError, random.dirichlet, alpha)
+
+    def test_dirichlet_alpha_non_contiguous(self):
+        a = np.array([51.72840233779265162, -1.0, 39.74494232180943953])
+        alpha = a[::2]
+        rng = random.RandomState(self.seed)
+        non_contig = rng.dirichlet(alpha, size=(3, 2))
+        rng = random.RandomState(self.seed)
+        contig = rng.dirichlet(np.ascontiguousarray(alpha),
+                                  size=(3, 2))
+        assert_array_almost_equal(non_contig, contig)
+
+    def test_exponential(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.exponential(1.1234, size=(3, 2))
+        desired = np.array([[1.08342649775011624, 1.00607889924557314],
+                            [2.46628830085216721, 2.49668106809923884],
+                            [0.68717433461363442, 1.69175666993575979]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_exponential_0(self):
+        assert_equal(random.exponential(scale=0), 0)
+        assert_raises(ValueError, random.exponential, scale=-0.)
+
+    def test_f(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.f(12, 77, size=(3, 2))
+        desired = np.array([[1.21975394418575878, 1.75135759791559775],
+                            [1.44803115017146489, 1.22108959480396262],
+                            [1.02176975757740629, 1.34431827623300415]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_gamma(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.gamma(5, 3, size=(3, 2))
+        desired = np.array([[24.60509188649287182, 28.54993563207210627],
+                            [26.13476110204064184, 12.56988482927716078],
+                            [31.71863275789960568, 33.30143302795922011]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_gamma_0(self):
+        assert_equal(random.gamma(shape=0, scale=0), 0)
+        assert_raises(ValueError, random.gamma, shape=-0., scale=-0.)
+
+    def test_geometric(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.geometric(.123456789, size=(3, 2))
+        desired = np.array([[8, 7],
+                            [17, 17],
+                            [5, 12]])
+        assert_array_equal(actual, desired)
+
+    def test_geometric_exceptions(self):
+        assert_raises(ValueError, random.geometric, 1.1)
+        assert_raises(ValueError, random.geometric, [1.1] * 10)
+        assert_raises(ValueError, random.geometric, -0.1)
+        assert_raises(ValueError, random.geometric, [-0.1] * 10)
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            assert_raises(ValueError, random.geometric, np.nan)
+            assert_raises(ValueError, random.geometric, [np.nan] * 10)
+
+    def test_gumbel(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.gumbel(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[0.19591898743416816, 0.34405539668096674],
+                            [-1.4492522252274278, -1.47374816298446865],
+                            [1.10651090478803416, -0.69535848626236174]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_gumbel_0(self):
+        assert_equal(random.gumbel(scale=0), 0)
+        assert_raises(ValueError, random.gumbel, scale=-0.)
+
+    def test_hypergeometric(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(10.1, 5.5, 14, size=(3, 2))
+        desired = np.array([[10, 10],
+                            [10, 10],
+                            [9, 9]])
+        assert_array_equal(actual, desired)
+
+        # Test nbad = 0
+        actual = rng.hypergeometric(5, 0, 3, size=4)
+        desired = np.array([3, 3, 3, 3])
+        assert_array_equal(actual, desired)
+
+        actual = rng.hypergeometric(15, 0, 12, size=4)
+        desired = np.array([12, 12, 12, 12])
+        assert_array_equal(actual, desired)
+
+        # Test ngood = 0
+        actual = rng.hypergeometric(0, 5, 3, size=4)
+        desired = np.array([0, 0, 0, 0])
+        assert_array_equal(actual, desired)
+
+        actual = rng.hypergeometric(0, 15, 12, size=4)
+        desired = np.array([0, 0, 0, 0])
+        assert_array_equal(actual, desired)
+
+    def test_laplace(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.laplace(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[0.66599721112760157, 0.52829452552221945],
+                            [3.12791959514407125, 3.18202813572992005],
+                            [-0.05391065675859356, 1.74901336242837324]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_laplace_0(self):
+        assert_equal(random.laplace(scale=0), 0)
+        assert_raises(ValueError, random.laplace, scale=-0.)
+
+    def test_logistic(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.logistic(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[1.09232835305011444, 0.8648196662399954],
+                            [4.27818590694950185, 4.33897006346929714],
+                            [-0.21682183359214885, 2.63373365386060332]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_lognormal(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.lognormal(mean=.123456789, sigma=2.0, size=(3, 2))
+        desired = np.array([[16.50698631688883822, 36.54846706092654784],
+                            [22.67886599981281748, 0.71617561058995771],
+                            [65.72798501792723869, 86.84341601437161273]])
+        assert_array_almost_equal(actual, desired, decimal=13)
+
+    def test_lognormal_0(self):
+        assert_equal(random.lognormal(sigma=0), 1)
+        assert_raises(ValueError, random.lognormal, sigma=-0.)
+
+    def test_logseries(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.logseries(p=.923456789, size=(3, 2))
+        desired = np.array([[2, 2],
+                            [6, 17],
+                            [3, 6]])
+        assert_array_equal(actual, desired)
+
+    def test_logseries_zero(self):
+        assert random.logseries(0) == 1
+
+    @pytest.mark.parametrize("value", [np.nextafter(0., -1), 1., np.nan, 5.])
+    def test_logseries_exceptions(self, value):
+        with np.errstate(invalid="ignore"):
+            with pytest.raises(ValueError):
+                random.logseries(value)
+            with pytest.raises(ValueError):
+                # contiguous path:
+                random.logseries(np.array([value] * 10))
+            with pytest.raises(ValueError):
+                # non-contiguous path:
+                random.logseries(np.array([value] * 10)[::2])
+
+    def test_multinomial(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.multinomial(20, [1 / 6.] * 6, size=(3, 2))
+        desired = np.array([[[4, 3, 5, 4, 2, 2],
+                             [5, 2, 8, 2, 2, 1]],
+                            [[3, 4, 3, 6, 0, 4],
+                             [2, 1, 4, 3, 6, 4]],
+                            [[4, 4, 2, 5, 2, 3],
+                             [4, 3, 4, 2, 3, 4]]])
+        assert_array_equal(actual, desired)
+
+    def test_multivariate_normal(self):
+        rng = random.RandomState(self.seed)
+        mean = (.123456789, 10)
+        cov = [[1, 0], [0, 1]]
+        size = (3, 2)
+        actual = rng.multivariate_normal(mean, cov, size)
+        desired = np.array([[[1.463620246718631, 11.73759122771936],
+                             [1.622445133300628, 9.771356667546383]],
+                            [[2.154490787682787, 12.170324946056553],
+                             [1.719909438201865, 9.230548443648306]],
+                            [[0.689515026297799, 9.880729819607714],
+                             [-0.023054015651998, 9.201096623542879]]])
+
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        # Check for default size, was raising deprecation warning
+        actual = rng.multivariate_normal(mean, cov)
+        desired = np.array([0.895289569463708, 9.17180864067987])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+        # Check that non positive-semidefinite covariance warns with
+        # RuntimeWarning
+        mean = [0, 0]
+        cov = [[1, 2], [2, 1]]
+        pytest.warns(RuntimeWarning, rng.multivariate_normal, mean, cov)
+
+        # and that it doesn't warn with RuntimeWarning check_valid='ignore'
+        assert_no_warnings(rng.multivariate_normal, mean, cov,
+                           check_valid='ignore')
+
+        # and that it raises with RuntimeWarning check_valid='raises'
+        assert_raises(ValueError, rng.multivariate_normal, mean, cov,
+                      check_valid='raise')
+
+        cov = np.array([[1, 0.1], [0.1, 1]], dtype=np.float32)
+        with warnings.catch_warnings():
+            warnings.simplefilter('error', RuntimeWarning)
+            rng.multivariate_normal(mean, cov)
+
+        mu = np.zeros(2)
+        cov = np.eye(2)
+        assert_raises(ValueError, rng.multivariate_normal, mean, cov,
+                      check_valid='other')
+        assert_raises(ValueError, rng.multivariate_normal,
+                      np.zeros((2, 1, 1)), cov)
+        assert_raises(ValueError, rng.multivariate_normal,
+                      mu, np.empty((3, 2)))
+        assert_raises(ValueError, rng.multivariate_normal,
+                      mu, np.eye(3))
+
+    def test_negative_binomial(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.negative_binomial(n=100, p=.12345, size=(3, 2))
+        desired = np.array([[848, 841],
+                            [892, 611],
+                            [779, 647]])
+        assert_array_equal(actual, desired)
+
+    def test_negative_binomial_exceptions(self):
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            assert_raises(ValueError, random.negative_binomial, 100, np.nan)
+            assert_raises(ValueError, random.negative_binomial, 100,
+                          [np.nan] * 10)
+
+    def test_noncentral_chisquare(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df=5, nonc=5, size=(3, 2))
+        desired = np.array([[23.91905354498517511, 13.35324692733826346],
+                            [31.22452661329736401, 16.60047399466177254],
+                            [5.03461598262724586, 17.94973089023519464]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        actual = rng.noncentral_chisquare(df=.5, nonc=.2, size=(3, 2))
+        desired = np.array([[1.47145377828516666,  0.15052899268012659],
+                            [0.00943803056963588,  1.02647251615666169],
+                            [0.332334982684171,  0.15451287602753125]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df=5, nonc=0, size=(3, 2))
+        desired = np.array([[9.597154162763948, 11.725484450296079],
+                            [10.413711048138335, 3.694475922923986],
+                            [13.484222138963087, 14.377255424602957]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_noncentral_f(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum=5, dfden=2, nonc=1,
+                                     size=(3, 2))
+        desired = np.array([[1.40598099674926669, 0.34207973179285761],
+                            [3.57715069265772545, 7.92632662577829805],
+                            [0.43741599463544162, 1.1774208752428319]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_noncentral_f_nan(self):
+        random.seed(self.seed)
+        actual = random.noncentral_f(dfnum=5, dfden=2, nonc=np.nan)
+        assert np.isnan(actual)
+
+    def test_normal(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.normal(loc=.123456789, scale=2.0, size=(3, 2))
+        desired = np.array([[2.80378370443726244, 3.59863924443872163],
+                            [3.121433477601256, -0.33382987590723379],
+                            [4.18552478636557357, 4.46410668111310471]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_normal_0(self):
+        assert_equal(random.normal(scale=0), 0)
+        assert_raises(ValueError, random.normal, scale=-0.)
+
+    def test_pareto(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.pareto(a=.123456789, size=(3, 2))
+        desired = np.array(
+                [[2.46852460439034849e+03, 1.41286880810518346e+03],
+                 [5.28287797029485181e+07, 6.57720981047328785e+07],
+                 [1.40840323350391515e+02, 1.98390255135251704e+05]])
+        # For some reason on 32-bit x86 Ubuntu 12.10 the [1, 0] entry in this
+        # matrix differs by 24 nulps. Discussion:
+        #   https://mail.python.org/pipermail/numpy-discussion/2012-September/063801.html
+        # Consensus is that this is probably some gcc quirk that affects
+        # rounding but not in any important way, so we just use a looser
+        # tolerance on this test:
+        np.testing.assert_array_almost_equal_nulp(actual, desired, nulp=30)
+
+    def test_poisson(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.poisson(lam=.123456789, size=(3, 2))
+        desired = np.array([[0, 0],
+                            [1, 0],
+                            [0, 0]])
+        assert_array_equal(actual, desired)
+
+    def test_poisson_exceptions(self):
+        lambig = np.iinfo('l').max
+        lamneg = -1
+        assert_raises(ValueError, random.poisson, lamneg)
+        assert_raises(ValueError, random.poisson, [lamneg] * 10)
+        assert_raises(ValueError, random.poisson, lambig)
+        assert_raises(ValueError, random.poisson, [lambig] * 10)
+        with warnings.catch_warnings():
+            warnings.simplefilter('ignore', RuntimeWarning)
+            assert_raises(ValueError, random.poisson, np.nan)
+            assert_raises(ValueError, random.poisson, [np.nan] * 10)
+
+    def test_power(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.power(a=.123456789, size=(3, 2))
+        desired = np.array([[0.02048932883240791, 0.01424192241128213],
+                            [0.38446073748535298, 0.39499689943484395],
+                            [0.00177699707563439, 0.13115505880863756]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_rayleigh(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.rayleigh(scale=10, size=(3, 2))
+        desired = np.array([[13.8882496494248393, 13.383318339044731],
+                            [20.95413364294492098, 21.08285015800712614],
+                            [11.06066537006854311, 17.35468505778271009]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_rayleigh_0(self):
+        assert_equal(random.rayleigh(scale=0), 0)
+        assert_raises(ValueError, random.rayleigh, scale=-0.)
+
+    def test_standard_cauchy(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_cauchy(size=(3, 2))
+        desired = np.array([[0.77127660196445336, -6.55601161955910605],
+                            [0.93582023391158309, -2.07479293013759447],
+                            [-4.74601644297011926, 0.18338989290760804]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_exponential(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_exponential(size=(3, 2))
+        desired = np.array([[0.96441739162374596, 0.89556604882105506],
+                            [2.1953785836319808, 2.22243285392490542],
+                            [0.6116915921431676, 1.50592546727413201]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_gamma(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_gamma(shape=3, size=(3, 2))
+        desired = np.array([[5.50841531318455058, 6.62953470301903103],
+                            [5.93988484943779227, 2.31044849402133989],
+                            [7.54838614231317084, 8.012756093271868]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_standard_gamma_0(self):
+        assert_equal(random.standard_gamma(shape=0), 0)
+        assert_raises(ValueError, random.standard_gamma, shape=-0.)
+
+    def test_standard_normal(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_normal(size=(3, 2))
+        desired = np.array([[1.34016345771863121, 1.73759122771936081],
+                            [1.498988344300628, -0.2286433324536169],
+                            [2.031033998682787, 2.17032494605655257]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_randn_singleton(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.randn()
+        desired = np.array(1.34016345771863121)
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_standard_t(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_t(df=10, size=(3, 2))
+        desired = np.array([[0.97140611862659965, -0.08830486548450577],
+                            [1.36311143689505321, -0.55317463909867071],
+                            [-0.18473749069684214, 0.61181537341755321]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_triangular(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left=5.12, mode=10.23, right=20.34,
+                                   size=(3, 2))
+        desired = np.array([[12.68117178949215784, 12.4129206149193152],
+                            [16.20131377335158263, 16.25692138747600524],
+                            [11.20400690911820263, 14.4978144835829923]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_uniform(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.uniform(low=1.23, high=10.54, size=(3, 2))
+        desired = np.array([[6.99097932346268003, 6.73801597444323974],
+                            [9.50364421400426274, 9.53130618907631089],
+                            [5.48995325769805476, 8.47493103280052118]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_uniform_range_bounds(self):
+        fmin = np.finfo('float').min
+        fmax = np.finfo('float').max
+
+        func = random.uniform
+        assert_raises(OverflowError, func, -np.inf, 0)
+        assert_raises(OverflowError, func, 0, np.inf)
+        assert_raises(OverflowError, func, fmin, fmax)
+        assert_raises(OverflowError, func, [-np.inf], [0])
+        assert_raises(OverflowError, func, [0], [np.inf])
+
+        # (fmax / 1e17) - fmin is within range, so this should not throw
+        # account for i386 extended precision DBL_MAX / 1e17 + DBL_MAX >
+        # DBL_MAX by increasing fmin a bit
+        random.uniform(low=np.nextafter(fmin, 1), high=fmax / 1e17)
+
+    def test_scalar_exception_propagation(self):
+        # Tests that exceptions are correctly propagated in distributions
+        # when called with objects that throw exceptions when converted to
+        # scalars.
+        #
+        # Regression test for gh: 8865
+
+        class ThrowingFloat(np.ndarray):
+            def __float__(self):
+                raise TypeError
+
+        throwing_float = np.array(1.0).view(ThrowingFloat)
+        assert_raises(TypeError, random.uniform, throwing_float,
+                      throwing_float)
+
+        class ThrowingInteger(np.ndarray):
+            def __int__(self):
+                raise TypeError
+
+        throwing_int = np.array(1).view(ThrowingInteger)
+        assert_raises(TypeError, random.hypergeometric, throwing_int, 1, 1)
+
+    def test_vonmises(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu=1.23, kappa=1.54, size=(3, 2))
+        desired = np.array([[2.28567572673902042, 2.89163838442285037],
+                            [0.38198375564286025, 2.57638023113890746],
+                            [1.19153771588353052, 1.83509849681825354]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_vonmises_small(self):
+        # check infinite loop, gh-4720
+        random.seed(self.seed)
+        r = random.vonmises(mu=0., kappa=1.1e-8, size=10**6)
+        assert_(np.isfinite(r).all())
+
+    def test_vonmises_large(self):
+        # guard against changes in RandomState when Generator is fixed
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu=0., kappa=1e7, size=3)
+        desired = np.array([4.634253748521111e-04,
+                            3.558873596114509e-04,
+                            -2.337119622577433e-04])
+        assert_array_almost_equal(actual, desired, decimal=8)
+
+    def test_vonmises_nan(self):
+        random.seed(self.seed)
+        r = random.vonmises(mu=0., kappa=np.nan)
+        assert_(np.isnan(r))
+
+    def test_wald(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.wald(mean=1.23, scale=1.54, size=(3, 2))
+        desired = np.array([[3.82935265715889983, 5.13125249184285526],
+                            [0.35045403618358717, 1.50832396872003538],
+                            [0.24124319895843183, 0.22031101461955038]])
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_weibull(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.weibull(a=1.23, size=(3, 2))
+        desired = np.array([[0.97097342648766727, 0.91422896443565516],
+                            [1.89517770034962929, 1.91414357960479564],
+                            [0.67057783752390987, 1.39494046635066793]])
+        assert_array_almost_equal(actual, desired, decimal=15)
+
+    def test_weibull_0(self):
+        random.seed(self.seed)
+        assert_equal(random.weibull(a=0, size=12), np.zeros(12))
+        assert_raises(ValueError, random.weibull, a=-0.)
+
+    def test_zipf(self):
+        rng = random.RandomState(self.seed)
+        actual = rng.zipf(a=1.23, size=(3, 2))
+        desired = np.array([[66, 29],
+                            [1, 1],
+                            [3, 13]])
+        assert_array_equal(actual, desired)
+
+
+class TestBroadcast:
+    # tests that functions that broadcast behave
+    # correctly when presented with non-scalar arguments
+    seed = 123456789
+
+    def test_uniform(self):
+        low = [0]
+        high = [1]
+        desired = np.array([0.53283302478975902,
+                            0.53413660089041659,
+                            0.50955303552646702])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.uniform(low * 3, high)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.uniform(low, high * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_normal(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([2.2129019979039612,
+                            2.1283977976520019,
+                            1.8417114045748335])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.normal(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.normal, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.normal(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.normal, loc, bad_scale * 3)
+
+    def test_beta(self):
+        a = [1]
+        b = [2]
+        bad_a = [-1]
+        bad_b = [-2]
+        desired = np.array([0.19843558305989056,
+                            0.075230336409423643,
+                            0.24976865978980844])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.beta(a * 3, b)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.beta, bad_a * 3, b)
+        assert_raises(ValueError, rng.beta, a * 3, bad_b)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.beta(a, b * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.beta, bad_a, b * 3)
+        assert_raises(ValueError, rng.beta, a, bad_b * 3)
+
+    def test_exponential(self):
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.76106853658845242,
+                            0.76386282278691653,
+                            0.71243813125891797])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.exponential(scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.exponential, bad_scale * 3)
+
+    def test_standard_gamma(self):
+        shape = [1]
+        bad_shape = [-1]
+        desired = np.array([0.76106853658845242,
+                            0.76386282278691653,
+                            0.71243813125891797])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_gamma(shape * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.standard_gamma, bad_shape * 3)
+
+    def test_gamma(self):
+        shape = [1]
+        scale = [2]
+        bad_shape = [-1]
+        bad_scale = [-2]
+        desired = np.array([1.5221370731769048,
+                            1.5277256455738331,
+                            1.4248762625178359])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gamma(shape * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gamma, bad_shape * 3, scale)
+        assert_raises(ValueError, rng.gamma, shape * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gamma(shape, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gamma, bad_shape, scale * 3)
+        assert_raises(ValueError, rng.gamma, shape, bad_scale * 3)
+
+    def test_f(self):
+        dfnum = [1]
+        dfden = [2]
+        bad_dfnum = [-1]
+        bad_dfden = [-2]
+        desired = np.array([0.80038951638264799,
+                            0.86768719635363512,
+                            2.7251095168386801])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.f(dfnum * 3, dfden)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.f, bad_dfnum * 3, dfden)
+        assert_raises(ValueError, rng.f, dfnum * 3, bad_dfden)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.f(dfnum, dfden * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.f, bad_dfnum, dfden * 3)
+        assert_raises(ValueError, rng.f, dfnum, bad_dfden * 3)
+
+    def test_noncentral_f(self):
+        dfnum = [2]
+        dfden = [3]
+        nonc = [4]
+        bad_dfnum = [0]
+        bad_dfden = [-1]
+        bad_nonc = [-2]
+        desired = np.array([9.1393943263705211,
+                            13.025456344595602,
+                            8.8018098359100545])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum * 3, dfden, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert np.all(np.isnan(rng.noncentral_f(dfnum, dfden, [np.nan] * 3)))
+
+        assert_raises(ValueError, rng.noncentral_f, bad_dfnum * 3, dfden, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum * 3, bad_dfden, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum * 3, dfden, bad_nonc)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum, dfden * 3, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_f, bad_dfnum, dfden * 3, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, bad_dfden * 3, nonc)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, dfden * 3, bad_nonc)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_f(dfnum, dfden, nonc * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_f, bad_dfnum, dfden, nonc * 3)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, bad_dfden, nonc * 3)
+        assert_raises(ValueError, rng.noncentral_f, dfnum, dfden, bad_nonc * 3)
+
+    def test_noncentral_f_small_df(self):
+        rng = random.RandomState(self.seed)
+        desired = np.array([6.869638627492048, 0.785880199263955])
+        actual = rng.noncentral_f(0.9, 0.9, 2, size=2)
+        assert_array_almost_equal(actual, desired, decimal=14)
+
+    def test_chisquare(self):
+        df = [1]
+        bad_df = [-1]
+        desired = np.array([0.57022801133088286,
+                            0.51947702108840776,
+                            0.1320969254923558])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.chisquare(df * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.chisquare, bad_df * 3)
+
+    def test_noncentral_chisquare(self):
+        df = [1]
+        nonc = [2]
+        bad_df = [-1]
+        bad_nonc = [-2]
+        desired = np.array([9.0015599467913763,
+                            4.5804135049718742,
+                            6.0872302432834564])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df * 3, nonc)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_chisquare, bad_df * 3, nonc)
+        assert_raises(ValueError, rng.noncentral_chisquare, df * 3, bad_nonc)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.noncentral_chisquare(df, nonc * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.noncentral_chisquare, bad_df, nonc * 3)
+        assert_raises(ValueError, rng.noncentral_chisquare, df, bad_nonc * 3)
+
+    def test_standard_t(self):
+        df = [1]
+        bad_df = [-1]
+        desired = np.array([3.0702872575217643,
+                            5.8560725167361607,
+                            1.0274791436474273])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.standard_t(df * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.standard_t, bad_df * 3)
+        assert_raises(ValueError, random.standard_t, bad_df * 3)
+
+    def test_vonmises(self):
+        mu = [2]
+        kappa = [1]
+        bad_kappa = [-1]
+        desired = np.array([2.9883443664201312,
+                            -2.7064099483995943,
+                            -1.8672476700665914])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu * 3, kappa)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.vonmises, mu * 3, bad_kappa)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.vonmises(mu, kappa * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.vonmises, mu, bad_kappa * 3)
+
+    def test_pareto(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([1.1405622680198362,
+                            1.1465519762044529,
+                            1.0389564467453547])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.pareto(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.pareto, bad_a * 3)
+        assert_raises(ValueError, random.pareto, bad_a * 3)
+
+    def test_weibull(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.76106853658845242,
+                            0.76386282278691653,
+                            0.71243813125891797])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.weibull(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.weibull, bad_a * 3)
+        assert_raises(ValueError, random.weibull, bad_a * 3)
+
+    def test_power(self):
+        a = [1]
+        bad_a = [-1]
+        desired = np.array([0.53283302478975902,
+                            0.53413660089041659,
+                            0.50955303552646702])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.power(a * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.power, bad_a * 3)
+        assert_raises(ValueError, random.power, bad_a * 3)
+
+    def test_laplace(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.067921356028507157,
+                            0.070715642226971326,
+                            0.019290950698972624])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.laplace(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.laplace, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.laplace(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.laplace, loc, bad_scale * 3)
+
+    def test_gumbel(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.2730318639556768,
+                            0.26936705726291116,
+                            0.33906220393037939])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gumbel(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gumbel, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.gumbel(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.gumbel, loc, bad_scale * 3)
+
+    def test_logistic(self):
+        loc = [0]
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([0.13152135837586171,
+                            0.13675915696285773,
+                            0.038216792802833396])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.logistic(loc * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.logistic, loc * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.logistic(loc, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.logistic, loc, bad_scale * 3)
+        assert_equal(rng.logistic(1.0, 0.0), 1.0)
+
+    def test_lognormal(self):
+        mean = [0]
+        sigma = [1]
+        bad_sigma = [-1]
+        desired = np.array([9.1422086044848427,
+                            8.4013952870126261,
+                            6.3073234116578671])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.lognormal(mean * 3, sigma)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.lognormal, mean * 3, bad_sigma)
+        assert_raises(ValueError, random.lognormal, mean * 3, bad_sigma)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.lognormal(mean, sigma * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.lognormal, mean, bad_sigma * 3)
+        assert_raises(ValueError, random.lognormal, mean, bad_sigma * 3)
+
+    def test_rayleigh(self):
+        scale = [1]
+        bad_scale = [-1]
+        desired = np.array([1.2337491937897689,
+                            1.2360119924878694,
+                            1.1936818095781789])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.rayleigh(scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.rayleigh, bad_scale * 3)
+
+    def test_wald(self):
+        mean = [0.5]
+        scale = [1]
+        bad_mean = [0]
+        bad_scale = [-2]
+        desired = np.array([0.11873681120271318,
+                            0.12450084820795027,
+                            0.9096122728408238])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.wald(mean * 3, scale)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.wald, bad_mean * 3, scale)
+        assert_raises(ValueError, rng.wald, mean * 3, bad_scale)
+        assert_raises(ValueError, random.wald, bad_mean * 3, scale)
+        assert_raises(ValueError, random.wald, mean * 3, bad_scale)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.wald(mean, scale * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.wald, bad_mean, scale * 3)
+        assert_raises(ValueError, rng.wald, mean, bad_scale * 3)
+        assert_raises(ValueError, rng.wald, 0.0, 1)
+        assert_raises(ValueError, rng.wald, 0.5, 0.0)
+
+    def test_triangular(self):
+        left = [1]
+        right = [3]
+        mode = [2]
+        bad_left_one = [3]
+        bad_mode_one = [4]
+        bad_left_two, bad_mode_two = right * 2
+        desired = np.array([2.03339048710429,
+                            2.0347400359389356,
+                            2.0095991069536208])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left * 3, mode, right)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.triangular, bad_left_one * 3, mode, right)
+        assert_raises(ValueError, rng.triangular, left * 3, bad_mode_one, right)
+        assert_raises(ValueError, rng.triangular, bad_left_two * 3, bad_mode_two,
+                      right)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left, mode * 3, right)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.triangular, bad_left_one, mode * 3, right)
+        assert_raises(ValueError, rng.triangular, left, bad_mode_one * 3, right)
+        assert_raises(ValueError, rng.triangular, bad_left_two, bad_mode_two * 3,
+                      right)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.triangular(left, mode, right * 3)
+        assert_array_almost_equal(actual, desired, decimal=14)
+        assert_raises(ValueError, rng.triangular, bad_left_one, mode, right * 3)
+        assert_raises(ValueError, rng.triangular, left, bad_mode_one, right * 3)
+        assert_raises(ValueError, rng.triangular, bad_left_two, bad_mode_two,
+                      right * 3)
+
+        assert_raises(ValueError, rng.triangular, 10., 0., 20.)
+        assert_raises(ValueError, rng.triangular, 10., 25., 20.)
+        assert_raises(ValueError, rng.triangular, 10., 10., 10.)
+
+    def test_binomial(self):
+        n = [1]
+        p = [0.5]
+        bad_n = [-1]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([1, 1, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(n * 3, p)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.binomial, bad_n * 3, p)
+        assert_raises(ValueError, rng.binomial, n * 3, bad_p_one)
+        assert_raises(ValueError, rng.binomial, n * 3, bad_p_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.binomial(n, p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.binomial, bad_n, p * 3)
+        assert_raises(ValueError, rng.binomial, n, bad_p_one * 3)
+        assert_raises(ValueError, rng.binomial, n, bad_p_two * 3)
+
+    def test_negative_binomial(self):
+        n = [1]
+        p = [0.5]
+        bad_n = [-1]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([1, 0, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.negative_binomial(n * 3, p)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.negative_binomial, bad_n * 3, p)
+        assert_raises(ValueError, rng.negative_binomial, n * 3, bad_p_one)
+        assert_raises(ValueError, rng.negative_binomial, n * 3, bad_p_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.negative_binomial(n, p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.negative_binomial, bad_n, p * 3)
+        assert_raises(ValueError, rng.negative_binomial, n, bad_p_one * 3)
+        assert_raises(ValueError, rng.negative_binomial, n, bad_p_two * 3)
+
+    def test_poisson(self):
+        max_lam = random.RandomState()._poisson_lam_max
+
+        lam = [1]
+        bad_lam_one = [-1]
+        bad_lam_two = [max_lam * 2]
+        desired = np.array([1, 1, 0])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.poisson(lam * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.poisson, bad_lam_one * 3)
+        assert_raises(ValueError, rng.poisson, bad_lam_two * 3)
+
+    def test_zipf(self):
+        a = [2]
+        bad_a = [0]
+        desired = np.array([2, 2, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.zipf(a * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.zipf, bad_a * 3)
+        with np.errstate(invalid='ignore'):
+            assert_raises(ValueError, rng.zipf, np.nan)
+            assert_raises(ValueError, rng.zipf, [0, 0, np.nan])
+
+    def test_geometric(self):
+        p = [0.5]
+        bad_p_one = [-1]
+        bad_p_two = [1.5]
+        desired = np.array([2, 2, 2])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.geometric(p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.geometric, bad_p_one * 3)
+        assert_raises(ValueError, rng.geometric, bad_p_two * 3)
+
+    def test_hypergeometric(self):
+        ngood = [1]
+        nbad = [2]
+        nsample = [2]
+        bad_ngood = [-1]
+        bad_nbad = [-2]
+        bad_nsample_one = [0]
+        bad_nsample_two = [4]
+        desired = np.array([1, 1, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(ngood * 3, nbad, nsample)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.hypergeometric, bad_ngood * 3, nbad, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood * 3, bad_nbad, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood * 3, nbad, bad_nsample_one)
+        assert_raises(ValueError, rng.hypergeometric, ngood * 3, nbad, bad_nsample_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(ngood, nbad * 3, nsample)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.hypergeometric, bad_ngood, nbad * 3, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood, bad_nbad * 3, nsample)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad * 3, bad_nsample_one)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad * 3, bad_nsample_two)
+
+        rng = random.RandomState(self.seed)
+        actual = rng.hypergeometric(ngood, nbad, nsample * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.hypergeometric, bad_ngood, nbad, nsample * 3)
+        assert_raises(ValueError, rng.hypergeometric, ngood, bad_nbad, nsample * 3)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad, bad_nsample_one * 3)
+        assert_raises(ValueError, rng.hypergeometric, ngood, nbad, bad_nsample_two * 3)
+
+        assert_raises(ValueError, rng.hypergeometric, -1, 10, 20)
+        assert_raises(ValueError, rng.hypergeometric, 10, -1, 20)
+        assert_raises(ValueError, rng.hypergeometric, 10, 10, 0)
+        assert_raises(ValueError, rng.hypergeometric, 10, 10, 25)
+
+    def test_logseries(self):
+        p = [0.5]
+        bad_p_one = [2]
+        bad_p_two = [-1]
+        desired = np.array([1, 1, 1])
+
+        rng = random.RandomState(self.seed)
+        actual = rng.logseries(p * 3)
+        assert_array_equal(actual, desired)
+        assert_raises(ValueError, rng.logseries, bad_p_one * 3)
+        assert_raises(ValueError, rng.logseries, bad_p_two * 3)
+
+
+@pytest.mark.skipif(IS_WASM, reason="can't start thread")
+class TestThread:
+    # make sure each state produces the same sequence even in threads
+    seeds = range(4)
+
+    def check_function(self, function, sz):
+        from threading import Thread
+
+        out1 = np.empty((len(self.seeds),) + sz)
+        out2 = np.empty((len(self.seeds),) + sz)
+
+        # threaded generation
+        t = [Thread(target=function, args=(random.RandomState(s), o))
+             for s, o in zip(self.seeds, out1)]
+        [x.start() for x in t]
+        [x.join() for x in t]
+
+        # the same serial
+        for s, o in zip(self.seeds, out2):
+            function(random.RandomState(s), o)
+
+        # these platforms change x87 fpu precision mode in threads
+        if np.intp().dtype.itemsize == 4 and sys.platform == "win32":
+            assert_array_almost_equal(out1, out2)
+        else:
+            assert_array_equal(out1, out2)
+
+    def test_normal(self):
+        def gen_random(state, out):
+            out[...] = state.normal(size=10000)
+
+        self.check_function(gen_random, sz=(10000,))
+
+    def test_exp(self):
+        def gen_random(state, out):
+            out[...] = state.exponential(scale=np.ones((100, 1000)))
+
+        self.check_function(gen_random, sz=(100, 1000))
+
+    def test_multinomial(self):
+        def gen_random(state, out):
+            out[...] = state.multinomial(10, [1 / 6.] * 6, size=10000)
+
+        self.check_function(gen_random, sz=(10000, 6))
+
+
+# See Issue #4263
+class TestSingleEltArrayInput:
+    def _create_arrays(self):
+        return np.array([2]), np.array([3]), np.array([4]), (1,)
+
+    def test_one_arg_funcs(self):
+        argOne, _, _, tgtShape = self._create_arrays()
+        funcs = (random.exponential, random.standard_gamma,
+                 random.chisquare, random.standard_t,
+                 random.pareto, random.weibull,
+                 random.power, random.rayleigh,
+                 random.poisson, random.zipf,
+                 random.geometric, random.logseries)
+
+        probfuncs = (random.geometric, random.logseries)
+
+        for func in funcs:
+            if func in probfuncs:  # p < 1.0
+                out = func(np.array([0.5]))
+
+            else:
+                out = func(argOne)
+
+            assert_equal(out.shape, tgtShape)
+
+    def test_two_arg_funcs(self):
+        argOne, argTwo, _, tgtShape = self._create_arrays()
+        funcs = (random.uniform, random.normal,
+                 random.beta, random.gamma,
+                 random.f, random.noncentral_chisquare,
+                 random.vonmises, random.laplace,
+                 random.gumbel, random.logistic,
+                 random.lognormal, random.wald,
+                 random.binomial, random.negative_binomial)
+
+        probfuncs = (random.binomial, random.negative_binomial)
+
+        for func in funcs:
+            if func in probfuncs:  # p <= 1
+                argTwo = np.array([0.5])
+
+            else:
+                argTwo = argTwo
+
+            out = func(argOne, argTwo)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne[0], argTwo)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne, argTwo[0])
+            assert_equal(out.shape, tgtShape)
+
+    def test_three_arg_funcs(self):
+        argOne, argTwo, argThree, tgtShape = self._create_arrays()
+        funcs = [random.noncentral_f, random.triangular,
+                 random.hypergeometric]
+
+        for func in funcs:
+            out = func(argOne, argTwo, argThree)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne[0], argTwo, argThree)
+            assert_equal(out.shape, tgtShape)
+
+            out = func(argOne, argTwo[0], argThree)
+            assert_equal(out.shape, tgtShape)
+
+
+# Ensure returned array dtype is correct for platform
+def test_integer_dtype(int_func):
+    random.seed(123456789)
+    fname, args, sha256 = int_func
+    f = getattr(random, fname)
+    actual = f(*args, size=2)
+    assert_(actual.dtype == np.dtype('l'))
+
+
+def test_integer_repeat(int_func):
+    rng = random.RandomState(123456789)
+    fname, args, sha256 = int_func
+    f = getattr(rng, fname)
+    val = f(*args, size=1000000)
+    if sys.byteorder != 'little':
+        val = val.byteswap()
+    res = hashlib.sha256(val.view(np.int8)).hexdigest()
+    assert_(res == sha256)
+
+
+def test_broadcast_size_error():
+    # GH-16833
+    with pytest.raises(ValueError):
+        random.binomial(1, [0.3, 0.7], size=(2, 1))
+    with pytest.raises(ValueError):
+        random.binomial([1, 2], 0.3, size=(2, 1))
+    with pytest.raises(ValueError):
+        random.binomial([1, 2], [0.3, 0.7], size=(2, 1))
+
+
+def test_randomstate_ctor_old_style_pickle():
+    rs = np.random.RandomState(MT19937(0))
+    rs.standard_normal(1)
+    # Directly call reduce which is used in pickling
+    ctor, args, state_a = rs.__reduce__()
+    # Simulate unpickling an old pickle that only has the name
+    assert args[0].__class__.__name__ == "MT19937"
+    b = ctor(*("MT19937",))
+    b.set_state(state_a)
+    state_b = b.get_state(legacy=False)
+
+    assert_equal(state_a['bit_generator'], state_b['bit_generator'])
+    assert_array_equal(state_a['state']['key'], state_b['state']['key'])
+    assert_array_equal(state_a['state']['pos'], state_b['state']['pos'])
+    assert_equal(state_a['has_gauss'], state_b['has_gauss'])
+    assert_equal(state_a['gauss'], state_b['gauss'])
+
+
+@pytest.mark.thread_unsafe(reason="np.random.set_bit_generator affects global state")
+def test_hot_swap(restore_singleton_bitgen):
+    # GH 21808
+    def_bg = np.random.default_rng(0)
+    bg = def_bg.bit_generator
+    np.random.set_bit_generator(bg)
+    assert isinstance(np.random.mtrand._rand._bit_generator, type(bg))
+
+    second_bg = np.random.get_bit_generator()
+    assert bg is second_bg
+
+
+@pytest.mark.thread_unsafe(reason="np.random.set_bit_generator affects global state")
+def test_seed_alt_bit_gen(restore_singleton_bitgen):
+    # GH 21808
+    bg = PCG64(0)
+    np.random.set_bit_generator(bg)
+    state = np.random.get_state(legacy=False)
+    np.random.seed(1)
+    new_state = np.random.get_state(legacy=False)
+    print(state)
+    print(new_state)
+    assert state["bit_generator"] == "PCG64"
+    assert state["state"]["state"] != new_state["state"]["state"]
+    assert state["state"]["inc"] != new_state["state"]["inc"]
+
+
+@pytest.mark.thread_unsafe(reason="np.random.set_bit_generator affects global state")
+def test_state_error_alt_bit_gen(restore_singleton_bitgen):
+    # GH 21808
+    state = np.random.get_state()
+    bg = PCG64(0)
+    np.random.set_bit_generator(bg)
+    with pytest.raises(ValueError, match="state must be for a PCG64"):
+        np.random.set_state(state)
+
+
+@pytest.mark.thread_unsafe(reason="np.random.set_bit_generator affects global state")
+def test_swap_worked(restore_singleton_bitgen):
+    # GH 21808
+    np.random.seed(98765)
+    vals = np.random.randint(0, 2 ** 30, 10)
+    bg = PCG64(0)
+    state = bg.state
+    np.random.set_bit_generator(bg)
+    state_direct = np.random.get_state(legacy=False)
+    for field in state:
+        assert state[field] == state_direct[field]
+    np.random.seed(98765)
+    pcg_vals = np.random.randint(0, 2 ** 30, 10)
+    assert not np.all(vals == pcg_vals)
+    new_state = bg.state
+    assert new_state["state"]["state"] != state["state"]["state"]
+    assert new_state["state"]["inc"] == new_state["state"]["inc"]
+
+
+@pytest.mark.thread_unsafe(reason="np.random.set_bit_generator affects global state")
+def test_swapped_singleton_against_direct(restore_singleton_bitgen):
+    np.random.set_bit_generator(PCG64(98765))
+    singleton_vals = np.random.randint(0, 2 ** 30, 10)
+    rg = np.random.RandomState(PCG64(98765))
+    non_singleton_vals = rg.randint(0, 2 ** 30, 10)
+    assert_equal(non_singleton_vals, singleton_vals)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_randomstate_regression.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_randomstate_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..befcf7ebaea316dabf290ef8db34bbe18999cc37
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_randomstate_regression.py
@@ -0,0 +1,213 @@
+import sys
+
+import pytest
+
+import numpy as np
+from numpy import random
+from numpy.testing import assert_, assert_array_equal, assert_raises
+
+
+class TestRegression:
+
+    def test_VonMises_range(self):
+        # Make sure generated random variables are in [-pi, pi].
+        # Regression test for ticket #986.
+        for mu in np.linspace(-7., 7., 5):
+            r = random.vonmises(mu, 1, 50)
+            assert_(np.all(r > -np.pi) and np.all(r <= np.pi))
+
+    def test_hypergeometric_range(self):
+        # Test for ticket #921
+        assert_(np.all(random.hypergeometric(3, 18, 11, size=10) < 4))
+        assert_(np.all(random.hypergeometric(18, 3, 11, size=10) > 0))
+
+        # Test for ticket #5623
+        args = [
+            (2**20 - 2, 2**20 - 2, 2**20 - 2),  # Check for 32-bit systems
+        ]
+        is_64bits = sys.maxsize > 2**32
+        if is_64bits and sys.platform != 'win32':
+            # Check for 64-bit systems
+            args.append((2**40 - 2, 2**40 - 2, 2**40 - 2))
+        for arg in args:
+            assert_(random.hypergeometric(*arg) > 0)
+
+    def test_logseries_convergence(self):
+        # Test for ticket #923
+        N = 1000
+        random.seed(0)
+        rvsn = random.logseries(0.8, size=N)
+        # these two frequency counts should be close to theoretical
+        # numbers with this large sample
+        # theoretical large N result is 0.49706795
+        freq = np.sum(rvsn == 1) / N
+        msg = f'Frequency was {freq:f}, should be > 0.45'
+        assert_(freq > 0.45, msg)
+        # theoretical large N result is 0.19882718
+        freq = np.sum(rvsn == 2) / N
+        msg = f'Frequency was {freq:f}, should be < 0.23'
+        assert_(freq < 0.23, msg)
+
+    def test_shuffle_mixed_dimension(self):
+        # Test for trac ticket #2074
+        for t in [[1, 2, 3, None],
+                  [(1, 1), (2, 2), (3, 3), None],
+                  [1, (2, 2), (3, 3), None],
+                  [(1, 1), 2, 3, None]]:
+            rng = random.RandomState(12345)
+            shuffled = list(t)
+            rng.shuffle(shuffled)
+            expected = np.array([t[0], t[3], t[1], t[2]], dtype=object)
+            assert_array_equal(np.array(shuffled, dtype=object), expected)
+
+    def test_call_within_randomstate(self):
+        # Check that custom RandomState does not call into global state
+        m = random.RandomState()
+        res = np.array([0, 8, 7, 2, 1, 9, 4, 7, 0, 3])
+        for i in range(3):
+            random.seed(i)
+            m.seed(4321)
+            # If m.state is not honored, the result will change
+            assert_array_equal(m.choice(10, size=10, p=np.ones(10) / 10.), res)
+
+    def test_multivariate_normal_size_types(self):
+        # Test for multivariate_normal issue with 'size' argument.
+        # Check that the multivariate_normal size argument can be a
+        # numpy integer.
+        random.multivariate_normal([0], [[0]], size=1)
+        random.multivariate_normal([0], [[0]], size=np.int_(1))
+        random.multivariate_normal([0], [[0]], size=np.int64(1))
+
+    def test_beta_small_parameters(self):
+        # Test that beta with small a and b parameters does not produce
+        # NaNs due to roundoff errors causing 0 / 0, gh-5851
+        random.seed(1234567890)
+        x = random.beta(0.0001, 0.0001, size=100)
+        assert_(not np.any(np.isnan(x)), 'Nans in random.beta')
+
+    def test_choice_sum_of_probs_tolerance(self):
+        # The sum of probs should be 1.0 with some tolerance.
+        # For low precision dtypes the tolerance was too tight.
+        # See numpy github issue 6123.
+        random.seed(1234)
+        a = [1, 2, 3]
+        counts = [4, 4, 2]
+        for dt in np.float16, np.float32, np.float64:
+            probs = np.array(counts, dtype=dt) / sum(counts)
+            c = random.choice(a, p=probs)
+            assert_(c in a)
+            assert_raises(ValueError, random.choice, a, p=probs * 0.9)
+
+    def test_shuffle_of_array_of_different_length_strings(self):
+        # Test that permuting an array of different length strings
+        # will not cause a segfault on garbage collection
+        # Tests gh-7710
+        random.seed(1234)
+
+        a = np.array(['a', 'a' * 1000])
+
+        for _ in range(100):
+            random.shuffle(a)
+
+        # Force Garbage Collection - should not segfault.
+        import gc
+        gc.collect()
+
+    def test_shuffle_of_array_of_objects(self):
+        # Test that permuting an array of objects will not cause
+        # a segfault on garbage collection.
+        # See gh-7719
+        random.seed(1234)
+        a = np.array([np.arange(1), np.arange(4)], dtype=object)
+
+        for _ in range(1000):
+            random.shuffle(a)
+
+        # Force Garbage Collection - should not segfault.
+        import gc
+        gc.collect()
+
+    def test_permutation_subclass(self):
+        class N(np.ndarray):
+            pass
+
+        rng = random.RandomState(1)
+        orig = np.arange(3).view(N)
+        perm = rng.permutation(orig)
+        assert_array_equal(perm, np.array([0, 2, 1]))
+        assert_array_equal(orig, np.arange(3).view(N))
+
+        class M:
+            a = np.arange(5)
+
+            def __array__(self, dtype=None, copy=None):
+                return self.a
+
+        rng = random.RandomState(1)
+        m = M()
+        perm = rng.permutation(m)
+        assert_array_equal(perm, np.array([2, 1, 4, 0, 3]))
+        assert_array_equal(m.__array__(), np.arange(5))
+
+    def test_warns_byteorder(self):
+        # GH 13159
+        other_byteord_dt = '<i4' if sys.byteorder == 'big' else '>i4'
+        with pytest.deprecated_call(match='non-native byteorder is not'):
+            random.randint(0, 200, size=10, dtype=other_byteord_dt)
+
+    def test_named_argument_initialization(self):
+        # GH 13669
+        rs1 = np.random.RandomState(123456789)
+        rs2 = np.random.RandomState(seed=123456789)
+        assert rs1.randint(0, 100) == rs2.randint(0, 100)
+
+    def test_choice_retun_dtype(self):
+        # GH 9867, now long since the NumPy default changed.
+        c = np.random.choice(10, p=[.1] * 10, size=2)
+        assert c.dtype == np.dtype(np.long)
+        c = np.random.choice(10, p=[.1] * 10, replace=False, size=2)
+        assert c.dtype == np.dtype(np.long)
+        c = np.random.choice(10, size=2)
+        assert c.dtype == np.dtype(np.long)
+        c = np.random.choice(10, replace=False, size=2)
+        assert c.dtype == np.dtype(np.long)
+
+    @pytest.mark.skipif(np.iinfo('l').max < 2**32,
+                        reason='Cannot test with 32-bit C long')
+    def test_randint_117(self):
+        # GH 14189
+        rng = random.RandomState(0)
+        expected = np.array([2357136044, 2546248239, 3071714933, 3626093760,
+                             2588848963, 3684848379, 2340255427, 3638918503,
+                             1819583497, 2678185683], dtype='int64')
+        actual = rng.randint(2**32, size=10)
+        assert_array_equal(actual, expected)
+
+    def test_p_zero_stream(self):
+        # Regression test for gh-14522.  Ensure that future versions
+        # generate the same variates as version 1.16.
+        rng = random.RandomState(12345)
+        assert_array_equal(rng.binomial(1, [0, 0.25, 0.5, 0.75, 1]),
+                           [0, 0, 0, 1, 1])
+
+    def test_n_zero_stream(self):
+        # Regression test for gh-14522.  Ensure that future versions
+        # generate the same variates as version 1.16.
+        rng = random.RandomState(8675309)
+        expected = np.array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+                             [3, 4, 2, 3, 3, 1, 5, 3, 1, 3]])
+        assert_array_equal(rng.binomial([[0], [10]], 0.25, size=(2, 10)),
+                           expected)
+
+
+def test_multinomial_empty():
+    # gh-20483
+    # Ensure that empty p-vals are correctly handled
+    assert random.multinomial(10, []).shape == (0,)
+    assert random.multinomial(3, [], size=(7, 5, 3)).shape == (7, 5, 3, 0)
+
+
+def test_multinomial_1d_pval():
+    # gh-20483
+    with pytest.raises(TypeError, match="pvals must be a 1-d"):
+        random.multinomial(10, 0.3)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_regression.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_regression.py
new file mode 100644
index 0000000000000000000000000000000000000000..15921be9912915de25339bd5f1069eec325c82c0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_regression.py
@@ -0,0 +1,175 @@
+import inspect
+import sys
+
+import pytest
+
+import numpy as np
+from numpy import random
+from numpy.testing import IS_PYPY, assert_, assert_array_equal, assert_raises
+
+
+class TestRegression:
+
+    def test_VonMises_range(self):
+        # Make sure generated random variables are in [-pi, pi].
+        # Regression test for ticket #986.
+        for mu in np.linspace(-7., 7., 5):
+            r = random.mtrand.vonmises(mu, 1, 50)
+            assert_(np.all(r > -np.pi) and np.all(r <= np.pi))
+
+    def test_hypergeometric_range(self):
+        # Test for ticket #921
+        assert_(np.all(np.random.hypergeometric(3, 18, 11, size=10) < 4))
+        assert_(np.all(np.random.hypergeometric(18, 3, 11, size=10) > 0))
+
+        # Test for ticket #5623
+        args = [
+            (2**20 - 2, 2**20 - 2, 2**20 - 2),  # Check for 32-bit systems
+        ]
+        is_64bits = sys.maxsize > 2**32
+        if is_64bits and sys.platform != 'win32':
+            # Check for 64-bit systems
+            args.append((2**40 - 2, 2**40 - 2, 2**40 - 2))
+        for arg in args:
+            assert_(np.random.hypergeometric(*arg) > 0)
+
+    def test_logseries_convergence(self):
+        # Test for ticket #923
+        N = 1000
+        np.random.seed(0)
+        rvsn = np.random.logseries(0.8, size=N)
+        # these two frequency counts should be close to theoretical
+        # numbers with this large sample
+        # theoretical large N result is 0.49706795
+        freq = np.sum(rvsn == 1) / N
+        msg = f'Frequency was {freq:f}, should be > 0.45'
+        assert_(freq > 0.45, msg)
+        # theoretical large N result is 0.19882718
+        freq = np.sum(rvsn == 2) / N
+        msg = f'Frequency was {freq:f}, should be < 0.23'
+        assert_(freq < 0.23, msg)
+
+    def test_shuffle_mixed_dimension(self):
+        # Test for trac ticket #2074
+        for t in [[1, 2, 3, None],
+                  [(1, 1), (2, 2), (3, 3), None],
+                  [1, (2, 2), (3, 3), None],
+                  [(1, 1), 2, 3, None]]:
+            rng = np.random.RandomState(12345)
+            shuffled = list(t)
+            rng.shuffle(shuffled)
+            expected = np.array([t[0], t[3], t[1], t[2]], dtype=object)
+            assert_array_equal(np.array(shuffled, dtype=object), expected)
+
+    def test_call_within_randomstate(self):
+        # Check that custom RandomState does not call into global state
+        m = np.random.RandomState()
+        res = np.array([0, 8, 7, 2, 1, 9, 4, 7, 0, 3])
+        for i in range(3):
+            np.random.seed(i)
+            m.seed(4321)
+            # If m.state is not honored, the result will change
+            assert_array_equal(m.choice(10, size=10, p=np.ones(10) / 10.), res)
+
+    def test_multivariate_normal_size_types(self):
+        # Test for multivariate_normal issue with 'size' argument.
+        # Check that the multivariate_normal size argument can be a
+        # numpy integer.
+        np.random.multivariate_normal([0], [[0]], size=1)
+        np.random.multivariate_normal([0], [[0]], size=np.int_(1))
+        np.random.multivariate_normal([0], [[0]], size=np.int64(1))
+
+    def test_beta_small_parameters(self):
+        # Test that beta with small a and b parameters does not produce
+        # NaNs due to roundoff errors causing 0 / 0, gh-5851
+        np.random.seed(1234567890)
+        x = np.random.beta(0.0001, 0.0001, size=100)
+        assert_(not np.any(np.isnan(x)), 'Nans in np.random.beta')
+
+    def test_choice_sum_of_probs_tolerance(self):
+        # The sum of probs should be 1.0 with some tolerance.
+        # For low precision dtypes the tolerance was too tight.
+        # See numpy github issue 6123.
+        np.random.seed(1234)
+        a = [1, 2, 3]
+        counts = [4, 4, 2]
+        for dt in np.float16, np.float32, np.float64:
+            probs = np.array(counts, dtype=dt) / sum(counts)
+            c = np.random.choice(a, p=probs)
+            assert_(c in a)
+            assert_raises(ValueError, np.random.choice, a, p=probs * 0.9)
+
+    def test_shuffle_of_array_of_different_length_strings(self):
+        # Test that permuting an array of different length strings
+        # will not cause a segfault on garbage collection
+        # Tests gh-7710
+        np.random.seed(1234)
+
+        a = np.array(['a', 'a' * 1000])
+
+        for _ in range(100):
+            np.random.shuffle(a)
+
+        # Force Garbage Collection - should not segfault.
+        import gc
+        gc.collect()
+
+    def test_shuffle_of_array_of_objects(self):
+        # Test that permuting an array of objects will not cause
+        # a segfault on garbage collection.
+        # See gh-7719
+        np.random.seed(1234)
+        a = np.array([np.arange(1), np.arange(4)], dtype=object)
+
+        for _ in range(1000):
+            np.random.shuffle(a)
+
+        # Force Garbage Collection - should not segfault.
+        import gc
+        gc.collect()
+
+    def test_permutation_subclass(self):
+        class N(np.ndarray):
+            pass
+
+        rng = np.random.RandomState(1)
+        orig = np.arange(3).view(N)
+        perm = rng.permutation(orig)
+        assert_array_equal(perm, np.array([0, 2, 1]))
+        assert_array_equal(orig, np.arange(3).view(N))
+
+        class M:
+            a = np.arange(5)
+
+            def __array__(self, dtype=None, copy=None):
+                return self.a
+
+        rng = np.random.RandomState(1)
+        m = M()
+        perm = rng.permutation(m)
+        assert_array_equal(perm, np.array([2, 1, 4, 0, 3]))
+        assert_array_equal(m.__array__(), np.arange(5))
+
+    @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO")
+    @pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc")
+    @pytest.mark.parametrize(
+        "cls",
+        [
+            random.Generator,
+            random.MT19937,
+            random.PCG64,
+            random.PCG64DXSM,
+            random.Philox,
+            random.RandomState,
+            random.SFC64,
+            random.BitGenerator,
+            random.SeedSequence,
+            random.bit_generator.SeedlessSeedSequence,
+        ],
+    )
+    def test_inspect_signature(self, cls: type) -> None:
+        assert hasattr(cls, "__text_signature__")
+        try:
+            inspect.signature(cls)
+        except ValueError:
+            pytest.fail(f"invalid signature: {cls.__module__}.{cls.__qualname__}")
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_seed_sequence.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_seed_sequence.py
new file mode 100644
index 0000000000000000000000000000000000000000..50e89a96a3524d2ac02c89a182e61d3a0e05759f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_seed_sequence.py
@@ -0,0 +1,79 @@
+import numpy as np
+from numpy.random import SeedSequence
+from numpy.testing import assert_array_compare, assert_array_equal
+
+
+def test_reference_data():
+    """ Check that SeedSequence generates data the same as the C++ reference.
+
+    https://gist.github.com/imneme/540829265469e673d045
+    """
+    inputs = [
+        [3735928559, 195939070, 229505742, 305419896],
+        [3668361503, 4165561550, 1661411377, 3634257570],
+        [164546577, 4166754639, 1765190214, 1303880213],
+        [446610472, 3941463886, 522937693, 1882353782],
+        [1864922766, 1719732118, 3882010307, 1776744564],
+        [4141682960, 3310988675, 553637289, 902896340],
+        [1134851934, 2352871630, 3699409824, 2648159817],
+        [1240956131, 3107113773, 1283198141, 1924506131],
+        [2669565031, 579818610, 3042504477, 2774880435],
+        [2766103236, 2883057919, 4029656435, 862374500],
+    ]
+    outputs = [
+        [3914649087, 576849849, 3593928901, 2229911004],
+        [2240804226, 3691353228, 1365957195, 2654016646],
+        [3562296087, 3191708229, 1147942216, 3726991905],
+        [1403443605, 3591372999, 1291086759, 441919183],
+        [1086200464, 2191331643, 560336446, 3658716651],
+        [3249937430, 2346751812, 847844327, 2996632307],
+        [2584285912, 4034195531, 3523502488, 169742686],
+        [959045797, 3875435559, 1886309314, 359682705],
+        [3978441347, 432478529, 3223635119, 138903045],
+        [296367413, 4262059219, 13109864, 3283683422],
+    ]
+    outputs64 = [
+        [2477551240072187391, 9577394838764454085],
+        [15854241394484835714, 11398914698975566411],
+        [13708282465491374871, 16007308345579681096],
+        [15424829579845884309, 1898028439751125927],
+        [9411697742461147792, 15714068361935982142],
+        [10079222287618677782, 12870437757549876199],
+        [17326737873898640088, 729039288628699544],
+        [16644868984619524261, 1544825456798124994],
+        [1857481142255628931, 596584038813451439],
+        [18305404959516669237, 14103312907920476776],
+    ]
+    for seed, expected, expected64 in zip(inputs, outputs, outputs64):
+        expected = np.array(expected, dtype=np.uint32)
+        ss = SeedSequence(seed)
+        state = ss.generate_state(len(expected))
+        assert_array_equal(state, expected)
+        state64 = ss.generate_state(len(expected64), dtype=np.uint64)
+        assert_array_equal(state64, expected64)
+
+
+def test_zero_padding():
+    """ Ensure that the implicit zero-padding does not cause problems.
+    """
+    # Ensure that large integers are inserted in little-endian fashion to avoid
+    # trailing 0s.
+    ss0 = SeedSequence(42)
+    ss1 = SeedSequence(42 << 32)
+    assert_array_compare(
+        np.not_equal,
+        ss0.generate_state(4),
+        ss1.generate_state(4))
+
+    # Ensure backwards compatibility with the original 0.17 release for small
+    # integers and no spawn key.
+    expected42 = np.array([3444837047, 2669555309, 2046530742, 3581440988],
+                          dtype=np.uint32)
+    assert_array_equal(SeedSequence(42).generate_state(4), expected42)
+
+    # Regression test for gh-16539 to ensure that the implicit 0s don't
+    # conflict with spawn keys.
+    assert_array_compare(
+        np.not_equal,
+        SeedSequence(42, spawn_key=(0,)).generate_state(4),
+        expected42)
diff --git a/python/user_packages/Python313/site-packages/numpy/random/tests/test_smoke.py b/python/user_packages/Python313/site-packages/numpy/random/tests/test_smoke.py
new file mode 100644
index 0000000000000000000000000000000000000000..e9e561f784805dff6406938cb3350dc1dc68d4e0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/random/tests/test_smoke.py
@@ -0,0 +1,882 @@
+import pickle
+from dataclasses import dataclass
+from functools import partial
+
+import pytest
+
+import numpy as np
+from numpy.random import MT19937, PCG64, PCG64DXSM, SFC64, Generator, Philox
+from numpy.testing import assert_, assert_array_equal, assert_equal
+
+DTYPES_BOOL_INT_UINT = (np.bool, np.int8, np.int16, np.int32, np.int64,
+                        np.uint8, np.uint16, np.uint32, np.uint64)
+
+
+def params_0(f):
+    val = f()
+    assert_(np.isscalar(val))
+    val = f(10)
+    assert_(val.shape == (10,))
+    val = f((10, 10))
+    assert_(val.shape == (10, 10))
+    val = f((10, 10, 10))
+    assert_(val.shape == (10, 10, 10))
+    val = f(size=(5, 5))
+    assert_(val.shape == (5, 5))
+
+
+def params_1(f, bounded=False):
+    a = 5.0
+    b = np.arange(2.0, 12.0)
+    c = np.arange(2.0, 102.0).reshape((10, 10))
+    d = np.arange(2.0, 1002.0).reshape((10, 10, 10))
+    e = np.array([2.0, 3.0])
+    g = np.arange(2.0, 12.0).reshape((1, 10, 1))
+    if bounded:
+        a = 0.5
+        b = b / (1.5 * b.max())
+        c = c / (1.5 * c.max())
+        d = d / (1.5 * d.max())
+        e = e / (1.5 * e.max())
+        g = g / (1.5 * g.max())
+
+    # Scalar
+    f(a)
+    # Scalar - size
+    f(a, size=(10, 10))
+    # 1d
+    f(b)
+    # 2d
+    f(c)
+    # 3d
+    f(d)
+    # 1d size
+    f(b, size=10)
+    # 2d - size - broadcast
+    f(e, size=(10, 2))
+    # 3d - size
+    f(g, size=(10, 10, 10))
+
+
+def comp_state(state1, state2):
+    identical = True
+    if isinstance(state1, dict):
+        for key in state1:
+            identical &= comp_state(state1[key], state2[key])
+    elif type(state1) != type(state2):
+        identical &= type(state1) == type(state2)
+    elif (isinstance(state1, (list, tuple, np.ndarray)) and isinstance(
+            state2, (list, tuple, np.ndarray))):
+        for s1, s2 in zip(state1, state2):
+            identical &= comp_state(s1, s2)
+    else:
+        identical &= state1 == state2
+    return identical
+
+
+def warmup(rg, n=None):
+    if n is None:
+        n = 11 + np.random.randint(0, 20)
+    rg.standard_normal(n)
+    rg.standard_normal(n)
+    rg.standard_normal(n, dtype=np.float32)
+    rg.standard_normal(n, dtype=np.float32)
+    rg.integers(0, 2 ** 24, n, dtype=np.uint64)
+    rg.integers(0, 2 ** 48, n, dtype=np.uint64)
+    rg.standard_gamma(11.0, n)
+    rg.standard_gamma(11.0, n, dtype=np.float32)
+    rg.random(n, dtype=np.float64)
+    rg.random(n, dtype=np.float32)
+
+
+@dataclass
+class RNGData:
+    bit_generator: type[np.random.BitGenerator]
+    advance: int
+    seed: list[int]
+    rg: Generator
+    seed_vector_bits: int
+
+
+class RNG:
+    @classmethod
+    def _create_rng(cls):
+        # Overridden in test classes. Place holder to silence IDE noise
+        bit_generator = PCG64
+        advance = None
+        seed = [12345]
+        rg = Generator(bit_generator(*seed))
+        seed_vector_bits = 64
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+    def test_init(self):
+        data = self._create_rng()
+        data.rg = Generator(data.bit_generator())
+        state = data.rg.bit_generator.state
+        data.rg.standard_normal(1)
+        data.rg.standard_normal(1)
+        data.rg.bit_generator.state = state
+        new_state = data.rg.bit_generator.state
+        assert_(comp_state(state, new_state))
+
+    def test_advance(self):
+        data = self._create_rng()
+        state = data.rg.bit_generator.state
+        if hasattr(data.rg.bit_generator, 'advance'):
+            data.rg.bit_generator.advance(data.advance)
+            assert_(not comp_state(state, data.rg.bit_generator.state))
+        else:
+            bitgen_name = data.rg.bit_generator.__class__.__name__
+            pytest.skip(f'Advance is not supported by {bitgen_name}')
+
+    def test_jump(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        if hasattr(rg.bit_generator, 'jumped'):
+            bit_gen2 = rg.bit_generator.jumped()
+            jumped_state = bit_gen2.state
+            assert_(not comp_state(state, jumped_state))
+            rg.random(2 * 3 * 5 * 7 * 11 * 13 * 17)
+            rg.bit_generator.state = state
+            bit_gen3 = rg.bit_generator.jumped()
+            rejumped_state = bit_gen3.state
+            assert_(comp_state(jumped_state, rejumped_state))
+        else:
+            bitgen_name = rg.bit_generator.__class__.__name__
+            if bitgen_name not in ('SFC64',):
+                raise AttributeError(f'no "jumped" in {bitgen_name}')
+            pytest.skip(f'Jump is not supported by {bitgen_name}')
+
+    def test_uniform(self):
+        rg = self._create_rng().rg
+        r = rg.uniform(-1.0, 0.0, size=10)
+        assert_(len(r) == 10)
+        assert_((r > -1).all())
+        assert_((r <= 0).all())
+
+    def test_uniform_array(self):
+        rg = self._create_rng().rg
+        r = rg.uniform(np.array([-1.0] * 10), 0.0, size=10)
+        assert_(len(r) == 10)
+        assert_((r > -1).all())
+        assert_((r <= 0).all())
+        r = rg.uniform(np.array([-1.0] * 10),
+                            np.array([0.0] * 10), size=10)
+        assert_(len(r) == 10)
+        assert_((r > -1).all())
+        assert_((r <= 0).all())
+        r = rg.uniform(-1.0, np.array([0.0] * 10), size=10)
+        assert_(len(r) == 10)
+        assert_((r > -1).all())
+        assert_((r <= 0).all())
+
+    def test_random(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.random(10)) == 10)
+        params_0(rg.random)
+
+    def test_standard_normal_zig(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.standard_normal(10)) == 10)
+
+    def test_standard_normal(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.standard_normal(10)) == 10)
+        params_0(rg.standard_normal)
+
+    def test_standard_gamma(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.standard_gamma(10, 10)) == 10)
+        assert_(len(rg.standard_gamma(np.array([10] * 10), 10)) == 10)
+        params_1(rg.standard_gamma)
+
+    def test_standard_exponential(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.standard_exponential(10)) == 10)
+        params_0(rg.standard_exponential)
+
+    def test_standard_exponential_float(self):
+        rg = self._create_rng().rg
+        randoms = rg.standard_exponential(10, dtype='float32')
+        assert_(len(randoms) == 10)
+        assert randoms.dtype == np.float32
+        params_0(partial(rg.standard_exponential, dtype='float32'))
+
+    def test_standard_exponential_float_log(self):
+        rg = self._create_rng().rg
+        randoms = rg.standard_exponential(10, dtype='float32',
+                                               method='inv')
+        assert_(len(randoms) == 10)
+        assert randoms.dtype == np.float32
+        params_0(partial(rg.standard_exponential, dtype='float32',
+                         method='inv'))
+
+    def test_standard_cauchy(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.standard_cauchy(10)) == 10)
+        params_0(rg.standard_cauchy)
+
+    def test_standard_t(self):
+        rg = self._create_rng().rg
+        assert_(len(rg.standard_t(10, 10)) == 10)
+        params_1(rg.standard_t)
+
+    def test_binomial(self):
+        rg = self._create_rng().rg
+        assert_(rg.binomial(10, .5) >= 0)
+        assert_(rg.binomial(1000, .5) >= 0)
+
+    def test_reset_state(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        int_1 = rg.integers(2**31)
+        rg.bit_generator.state = state
+        int_2 = rg.integers(2**31)
+        assert_(int_1 == int_2)
+
+    def test_entropy_init(self):
+        bit_generator = self._create_rng().bit_generator
+        rg = Generator(bit_generator())
+        rg2 = Generator(bit_generator())
+        assert_(not comp_state(rg.bit_generator.state,
+                               rg2.bit_generator.state))
+
+    def test_seed(self):
+        data = self._create_rng()
+        rg = Generator(data.bit_generator(*data.seed))
+        rg2 = Generator(data.bit_generator(*data.seed))
+        rg.random()
+        rg2.random()
+        assert_(comp_state(rg.bit_generator.state, rg2.bit_generator.state))
+
+    def test_reset_state_gauss(self):
+        data = self._create_rng()
+        rg = Generator(data.bit_generator(*data.seed))
+        rg.standard_normal()
+        state = rg.bit_generator.state
+        n1 = rg.standard_normal(size=10)
+        rg2 = Generator(data.bit_generator())
+        rg2.bit_generator.state = state
+        n2 = rg2.standard_normal(size=10)
+        assert_array_equal(n1, n2)
+
+    def test_reset_state_uint32(self):
+        data = self._create_rng()
+        rg = Generator(data.bit_generator(*data.seed))
+        rg.integers(0, 2 ** 24, 120, dtype=np.uint32)
+        state = rg.bit_generator.state
+        n1 = rg.integers(0, 2 ** 24, 10, dtype=np.uint32)
+        rg2 = Generator(data.bit_generator())
+        rg2.bit_generator.state = state
+        n2 = rg2.integers(0, 2 ** 24, 10, dtype=np.uint32)
+        assert_array_equal(n1, n2)
+
+    def test_reset_state_float(self):
+        data = self._create_rng()
+        rg = Generator(data.bit_generator(*data.seed))
+        rg.random(dtype='float32')
+        state = rg.bit_generator.state
+        n1 = rg.random(size=10, dtype='float32')
+        rg2 = Generator(data.bit_generator())
+        rg2.bit_generator.state = state
+        n2 = rg2.random(size=10, dtype='float32')
+        assert_((n1 == n2).all())
+
+    def test_shuffle(self):
+        rg = self._create_rng().rg
+        original = np.arange(200, 0, -1)
+        permuted = rg.permutation(original)
+        assert_((original != permuted).any())
+
+    def test_permutation(self):
+        rg = self._create_rng().rg
+        original = np.arange(200, 0, -1)
+        permuted = rg.permutation(original)
+        assert_((original != permuted).any())
+
+    def test_beta(self):
+        rg = self._create_rng().rg
+        vals = rg.beta(2.0, 2.0, 10)
+        assert_(len(vals) == 10)
+        vals = rg.beta(np.array([2.0] * 10), 2.0)
+        assert_(len(vals) == 10)
+        vals = rg.beta(2.0, np.array([2.0] * 10))
+        assert_(len(vals) == 10)
+        vals = rg.beta(np.array([2.0] * 10), np.array([2.0] * 10))
+        assert_(len(vals) == 10)
+        vals = rg.beta(np.array([2.0] * 10), np.array([[2.0]] * 10))
+        assert_(vals.shape == (10, 10))
+
+    def test_bytes(self):
+        rg = self._create_rng().rg
+        vals = rg.bytes(10)
+        assert_(len(vals) == 10)
+
+    def test_chisquare(self):
+        rg = self._create_rng().rg
+        vals = rg.chisquare(2.0, 10)
+        assert_(len(vals) == 10)
+        params_1(rg.chisquare)
+
+    def test_exponential(self):
+        rg = self._create_rng().rg
+        vals = rg.exponential(2.0, 10)
+        assert_(len(vals) == 10)
+        params_1(rg.exponential)
+
+    def test_f(self):
+        rg = self._create_rng().rg
+        vals = rg.f(3, 1000, 10)
+        assert_(len(vals) == 10)
+
+    def test_gamma(self):
+        rg = self._create_rng().rg
+        vals = rg.gamma(3, 2, 10)
+        assert_(len(vals) == 10)
+
+    def test_geometric(self):
+        rg = self._create_rng().rg
+        vals = rg.geometric(0.5, 10)
+        assert_(len(vals) == 10)
+        params_1(rg.exponential, bounded=True)
+
+    def test_gumbel(self):
+        rg = self._create_rng().rg
+        vals = rg.gumbel(2.0, 2.0, 10)
+        assert_(len(vals) == 10)
+
+    def test_laplace(self):
+        rg = self._create_rng().rg
+        vals = rg.laplace(2.0, 2.0, 10)
+        assert_(len(vals) == 10)
+
+    def test_logitic(self):
+        rg = self._create_rng().rg
+        vals = rg.logistic(2.0, 2.0, 10)
+        assert_(len(vals) == 10)
+
+    def test_logseries(self):
+        rg = self._create_rng().rg
+        vals = rg.logseries(0.5, 10)
+        assert_(len(vals) == 10)
+
+    def test_negative_binomial(self):
+        rg = self._create_rng().rg
+        vals = rg.negative_binomial(10, 0.2, 10)
+        assert_(len(vals) == 10)
+
+    def test_noncentral_chisquare(self):
+        rg = self._create_rng().rg
+        vals = rg.noncentral_chisquare(10, 2, 10)
+        assert_(len(vals) == 10)
+
+    def test_noncentral_f(self):
+        rg = self._create_rng().rg
+        vals = rg.noncentral_f(3, 1000, 2, 10)
+        assert_(len(vals) == 10)
+        vals = rg.noncentral_f(np.array([3] * 10), 1000, 2)
+        assert_(len(vals) == 10)
+        vals = rg.noncentral_f(3, np.array([1000] * 10), 2)
+        assert_(len(vals) == 10)
+        vals = rg.noncentral_f(3, 1000, np.array([2] * 10))
+        assert_(len(vals) == 10)
+
+    def test_normal(self):
+        rg = self._create_rng().rg
+        vals = rg.normal(10, 0.2, 10)
+        assert_(len(vals) == 10)
+
+    def test_pareto(self):
+        rg = self._create_rng().rg
+        vals = rg.pareto(3.0, 10)
+        assert_(len(vals) == 10)
+
+    def test_poisson(self):
+        rg = self._create_rng().rg
+        vals = rg.poisson(10, 10)
+        assert_(len(vals) == 10)
+        vals = rg.poisson(np.array([10] * 10))
+        assert_(len(vals) == 10)
+        params_1(rg.poisson)
+
+    def test_power(self):
+        rg = self._create_rng().rg
+        vals = rg.power(0.2, 10)
+        assert_(len(vals) == 10)
+
+    def test_integers(self):
+        rg = self._create_rng().rg
+        vals = rg.integers(10, 20, 10)
+        assert_(len(vals) == 10)
+
+    def test_rayleigh(self):
+        rg = self._create_rng().rg
+        vals = rg.rayleigh(0.2, 10)
+        assert_(len(vals) == 10)
+        params_1(rg.rayleigh, bounded=True)
+
+    def test_vonmises(self):
+        rg = self._create_rng().rg
+        vals = rg.vonmises(10, 0.2, 10)
+        assert_(len(vals) == 10)
+
+    def test_wald(self):
+        rg = self._create_rng().rg
+        vals = rg.wald(1.0, 1.0, 10)
+        assert_(len(vals) == 10)
+
+    def test_weibull(self):
+        rg = self._create_rng().rg
+        vals = rg.weibull(1.0, 10)
+        assert_(len(vals) == 10)
+
+    def test_zipf(self):
+        rg = self._create_rng().rg
+        vec_1d = np.arange(2.0, 102.0)
+        vec_2d = np.arange(2.0, 102.0)[None, :]
+        mat = np.arange(2.0, 102.0, 0.01).reshape((100, 100))
+        vals = rg.zipf(10, 10)
+        assert_(len(vals) == 10)
+        vals = rg.zipf(vec_1d)
+        assert_(len(vals) == 100)
+        vals = rg.zipf(vec_2d)
+        assert_(vals.shape == (1, 100))
+        vals = rg.zipf(mat)
+        assert_(vals.shape == (100, 100))
+
+    def test_hypergeometric(self):
+        rg = self._create_rng().rg
+        vals = rg.hypergeometric(25, 25, 20)
+        assert_(np.isscalar(vals))
+        vals = rg.hypergeometric(np.array([25] * 10), 25, 20)
+        assert_(vals.shape == (10,))
+
+    def test_triangular(self):
+        rg = self._create_rng().rg
+        vals = rg.triangular(-5, 0, 5)
+        assert_(np.isscalar(vals))
+        vals = rg.triangular(-5, np.array([0] * 10), 5)
+        assert_(vals.shape == (10,))
+
+    def test_multivariate_normal(self):
+        rg = self._create_rng().rg
+        mean = [0, 0]
+        cov = [[1, 0], [0, 100]]  # diagonal covariance
+        x = rg.multivariate_normal(mean, cov, 5000)
+        assert_(x.shape == (5000, 2))
+        x_zig = rg.multivariate_normal(mean, cov, 5000)
+        assert_(x.shape == (5000, 2))
+        x_inv = rg.multivariate_normal(mean, cov, 5000)
+        assert_(x.shape == (5000, 2))
+        assert_((x_zig != x_inv).any())
+
+    def test_multinomial(self):
+        rg = self._create_rng().rg
+        vals = rg.multinomial(100, [1.0 / 3, 2.0 / 3])
+        assert_(vals.shape == (2,))
+        vals = rg.multinomial(100, [1.0 / 3, 2.0 / 3], size=10)
+        assert_(vals.shape == (10, 2))
+
+    def test_dirichlet(self):
+        rg = self._create_rng().rg
+        s = rg.dirichlet((10, 5, 3), 20)
+        assert_(s.shape == (20, 3))
+
+    def test_pickle(self):
+        rg = self._create_rng().rg
+        pick = pickle.dumps(rg)
+        unpick = pickle.loads(pick)
+        assert_(type(rg) == type(unpick))
+        assert_(comp_state(rg.bit_generator.state,
+                           unpick.bit_generator.state))
+
+        pick = pickle.dumps(rg)
+        unpick = pickle.loads(pick)
+        assert_(type(rg) == type(unpick))
+        assert_(comp_state(rg.bit_generator.state,
+                           unpick.bit_generator.state))
+
+    def test_seed_array(self):
+        data = self._create_rng()
+        if data.seed_vector_bits is None:
+            bitgen_name = data.bit_generator.__name__
+            pytest.skip(f'Vector seeding is not supported by {bitgen_name}')
+
+        if data.seed_vector_bits == 32:
+            dtype = np.uint32
+        else:
+            dtype = np.uint64
+        seed = np.array([1], dtype=dtype)
+        bg = data.bit_generator(seed)
+        state1 = bg.state
+        bg = data.bit_generator(1)
+        state2 = bg.state
+        assert_(comp_state(state1, state2))
+
+        seed = np.arange(4, dtype=dtype)
+        bg = data.bit_generator(seed)
+        state1 = bg.state
+        bg = data.bit_generator(seed[0])
+        state2 = bg.state
+        assert_(not comp_state(state1, state2))
+
+        seed = np.arange(1500, dtype=dtype)
+        bg = data.bit_generator(seed)
+        state1 = bg.state
+        bg = data.bit_generator(seed[0])
+        state2 = bg.state
+        assert_(not comp_state(state1, state2))
+
+        seed = 2 ** np.mod(np.arange(1500, dtype=dtype),
+                           data.seed_vector_bits - 1) + 1
+        bg = data.bit_generator(seed)
+        state1 = bg.state
+        bg = data.bit_generator(seed[0])
+        state2 = bg.state
+        assert_(not comp_state(state1, state2))
+
+    def test_uniform_float(self):
+        bit_generator = self._create_rng().bit_generator
+        rg = Generator(bit_generator(12345))
+        warmup(rg)
+        state = rg.bit_generator.state
+        r1 = rg.random(11, dtype=np.float32)
+        rg2 = Generator(bit_generator())
+        warmup(rg2)
+        rg2.bit_generator.state = state
+        r2 = rg2.random(11, dtype=np.float32)
+        assert_array_equal(r1, r2)
+        assert_equal(r1.dtype, np.float32)
+        assert_(comp_state(rg.bit_generator.state, rg2.bit_generator.state))
+
+    def test_gamma_floats(self):
+        bit_generator = self._create_rng().bit_generator
+        rg = Generator(bit_generator())
+        warmup(rg)
+        state = rg.bit_generator.state
+        r1 = rg.standard_gamma(4.0, 11, dtype=np.float32)
+        rg2 = Generator(bit_generator())
+        warmup(rg2)
+        rg2.bit_generator.state = state
+        r2 = rg2.standard_gamma(4.0, 11, dtype=np.float32)
+        assert_array_equal(r1, r2)
+        assert_equal(r1.dtype, np.float32)
+        assert_(comp_state(rg.bit_generator.state, rg2.bit_generator.state))
+
+    def test_normal_floats(self):
+        bit_generator = self._create_rng().bit_generator
+        rg = Generator(bit_generator())
+        warmup(rg)
+        state = rg.bit_generator.state
+        r1 = rg.standard_normal(11, dtype=np.float32)
+        rg2 = Generator(bit_generator())
+        warmup(rg2)
+        rg2.bit_generator.state = state
+        r2 = rg2.standard_normal(11, dtype=np.float32)
+        assert_array_equal(r1, r2)
+        assert_equal(r1.dtype, np.float32)
+        assert_(comp_state(rg.bit_generator.state, rg2.bit_generator.state))
+
+    def test_normal_zig_floats(self):
+        bit_generator = self._create_rng().bit_generator
+        rg = Generator(bit_generator())
+        warmup(rg)
+        state = rg.bit_generator.state
+        r1 = rg.standard_normal(11, dtype=np.float32)
+        rg2 = Generator(bit_generator())
+        warmup(rg2)
+        rg2.bit_generator.state = state
+        r2 = rg2.standard_normal(11, dtype=np.float32)
+        assert_array_equal(r1, r2)
+        assert_equal(r1.dtype, np.float32)
+        assert_(comp_state(rg.bit_generator.state, rg2.bit_generator.state))
+
+    def test_output_fill(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        size = (31, 7, 97)
+        existing = np.empty(size)
+        rg.bit_generator.state = state
+        rg.standard_normal(out=existing)
+        rg.bit_generator.state = state
+        direct = rg.standard_normal(size=size)
+        assert_equal(direct, existing)
+
+        sized = np.empty(size)
+        rg.bit_generator.state = state
+        rg.standard_normal(out=sized, size=sized.shape)
+
+        existing = np.empty(size, dtype=np.float32)
+        rg.bit_generator.state = state
+        rg.standard_normal(out=existing, dtype=np.float32)
+        rg.bit_generator.state = state
+        direct = rg.standard_normal(size=size, dtype=np.float32)
+        assert_equal(direct, existing)
+
+    def test_output_filling_uniform(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        size = (31, 7, 97)
+        existing = np.empty(size)
+        rg.bit_generator.state = state
+        rg.random(out=existing)
+        rg.bit_generator.state = state
+        direct = rg.random(size=size)
+        assert_equal(direct, existing)
+
+        existing = np.empty(size, dtype=np.float32)
+        rg.bit_generator.state = state
+        rg.random(out=existing, dtype=np.float32)
+        rg.bit_generator.state = state
+        direct = rg.random(size=size, dtype=np.float32)
+        assert_equal(direct, existing)
+
+    def test_output_filling_exponential(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        size = (31, 7, 97)
+        existing = np.empty(size)
+        rg.bit_generator.state = state
+        rg.standard_exponential(out=existing)
+        rg.bit_generator.state = state
+        direct = rg.standard_exponential(size=size)
+        assert_equal(direct, existing)
+
+        existing = np.empty(size, dtype=np.float32)
+        rg.bit_generator.state = state
+        rg.standard_exponential(out=existing, dtype=np.float32)
+        rg.bit_generator.state = state
+        direct = rg.standard_exponential(size=size, dtype=np.float32)
+        assert_equal(direct, existing)
+
+    def test_output_filling_gamma(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        size = (31, 7, 97)
+        existing = np.zeros(size)
+        rg.bit_generator.state = state
+        rg.standard_gamma(1.0, out=existing)
+        rg.bit_generator.state = state
+        direct = rg.standard_gamma(1.0, size=size)
+        assert_equal(direct, existing)
+
+        existing = np.zeros(size, dtype=np.float32)
+        rg.bit_generator.state = state
+        rg.standard_gamma(1.0, out=existing, dtype=np.float32)
+        rg.bit_generator.state = state
+        direct = rg.standard_gamma(1.0, size=size, dtype=np.float32)
+        assert_equal(direct, existing)
+
+    def test_output_filling_gamma_broadcast(self):
+        rg = self._create_rng().rg
+        state = rg.bit_generator.state
+        size = (31, 7, 97)
+        mu = np.arange(97.0) + 1.0
+        existing = np.zeros(size)
+        rg.bit_generator.state = state
+        rg.standard_gamma(mu, out=existing)
+        rg.bit_generator.state = state
+        direct = rg.standard_gamma(mu, size=size)
+        assert_equal(direct, existing)
+
+        existing = np.zeros(size, dtype=np.float32)
+        rg.bit_generator.state = state
+        rg.standard_gamma(mu, out=existing, dtype=np.float32)
+        rg.bit_generator.state = state
+        direct = rg.standard_gamma(mu, size=size, dtype=np.float32)
+        assert_equal(direct, existing)
+
+    def test_output_fill_error(self):
+        rg = self._create_rng().rg
+        size = (31, 7, 97)
+        existing = np.empty(size)
+        with pytest.raises(TypeError):
+            rg.standard_normal(out=existing, dtype=np.float32)
+        with pytest.raises(ValueError):
+            rg.standard_normal(out=existing[::3])
+        existing = np.empty(size, dtype=np.float32)
+        with pytest.raises(TypeError):
+            rg.standard_normal(out=existing, dtype=np.float64)
+
+        existing = np.zeros(size, dtype=np.float32)
+        with pytest.raises(TypeError):
+            rg.standard_gamma(1.0, out=existing, dtype=np.float64)
+        with pytest.raises(ValueError):
+            rg.standard_gamma(1.0, out=existing[::3], dtype=np.float32)
+        existing = np.zeros(size, dtype=np.float64)
+        with pytest.raises(TypeError):
+            rg.standard_gamma(1.0, out=existing, dtype=np.float32)
+        with pytest.raises(ValueError):
+            rg.standard_gamma(1.0, out=existing[::3])
+
+    @pytest.mark.parametrize("dtype", DTYPES_BOOL_INT_UINT)
+    def test_integers_broadcast(self, dtype):
+        rg = self._create_rng().rg
+        initial_state = rg.bit_generator.state
+
+        def reset_state(rng):
+            rng.bit_generator.state = initial_state
+
+        if dtype == np.bool:
+            upper = 2
+            lower = 0
+        else:
+            info = np.iinfo(dtype)
+            upper = int(info.max) + 1
+            lower = info.min
+        reset_state(rg)
+        rg.bit_generator.state = initial_state
+        a = rg.integers(lower, [upper] * 10, dtype=dtype)
+        reset_state(rg)
+        b = rg.integers([lower] * 10, upper, dtype=dtype)
+        assert_equal(a, b)
+        reset_state(rg)
+        c = rg.integers(lower, upper, size=10, dtype=dtype)
+        assert_equal(a, c)
+        reset_state(rg)
+        d = rg.integers(np.array(
+            [lower] * 10), np.array([upper], dtype=object), size=10,
+            dtype=dtype)
+        assert_equal(a, d)
+        reset_state(rg)
+        e = rg.integers(
+            np.array([lower] * 10), np.array([upper] * 10), size=10,
+            dtype=dtype)
+        assert_equal(a, e)
+
+        reset_state(rg)
+        a = rg.integers(0, upper, size=10, dtype=dtype)
+        reset_state(rg)
+        b = rg.integers([upper] * 10, dtype=dtype)
+        assert_equal(a, b)
+
+    @pytest.mark.parametrize("dtype", DTYPES_BOOL_INT_UINT)
+    def test_integers_numpy(self, dtype):
+        rg = self._create_rng().rg
+        high = np.array([1])
+        low = np.array([0])
+
+        out = rg.integers(low, high, dtype=dtype)
+        assert out.shape == (1,)
+
+        out = rg.integers(low[0], high, dtype=dtype)
+        assert out.shape == (1,)
+
+        out = rg.integers(low, high[0], dtype=dtype)
+        assert out.shape == (1,)
+
+    @pytest.mark.parametrize("dtype", DTYPES_BOOL_INT_UINT)
+    def test_integers_broadcast_errors(self, dtype):
+        rg = self._create_rng().rg
+        if dtype == np.bool:
+            upper = 2
+            lower = 0
+        else:
+            info = np.iinfo(dtype)
+            upper = int(info.max) + 1
+            lower = info.min
+        with pytest.raises(ValueError):
+            rg.integers(lower, [upper + 1] * 10, dtype=dtype)
+        with pytest.raises(ValueError):
+            rg.integers(lower - 1, [upper] * 10, dtype=dtype)
+        with pytest.raises(ValueError):
+            rg.integers([lower - 1], [upper] * 10, dtype=dtype)
+        with pytest.raises(ValueError):
+            rg.integers([0], [0], dtype=dtype)
+
+
+class TestMT19937(RNG):
+    @classmethod
+    def _create_rng(cls):
+        bit_generator = MT19937
+        advance = None
+        seed = [2 ** 21 + 2 ** 16 + 2 ** 5 + 1]
+        rg = Generator(bit_generator(*seed))
+        seed_vector_bits = 32
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+    def test_numpy_state(self):
+        rg = self._create_rng().rg
+        nprg = np.random.RandomState()
+        nprg.standard_normal(99)
+        state = nprg.get_state()
+        rg.bit_generator.state = state
+        state2 = rg.bit_generator.state
+        assert_((state[1] == state2['state']['key']).all())
+        assert_(state[2] == state2['state']['pos'])
+
+
+class TestPhilox(RNG):
+    @classmethod
+    def _create_rng(cls):
+        bit_generator = Philox
+        advance = 2**63 + 2**31 + 2**15 + 1
+        seed = [12345]
+        rg = Generator(bit_generator(*seed))
+        seed_vector_bits = 64
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+
+class TestSFC64(RNG):
+    @classmethod
+    def _create_rng(cls):
+        bit_generator = SFC64
+        advance = None
+        seed = [12345]
+        rg = Generator(bit_generator(*seed))
+        seed_vector_bits = 192
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+
+class TestPCG64(RNG):
+    @classmethod
+    def _create_rng(cls):
+        bit_generator = PCG64
+        advance = 2**63 + 2**31 + 2**15 + 1
+        seed = [12345]
+        rg = Generator(bit_generator(*seed))
+        seed_vector_bits = 64
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+
+class TestPCG64DXSM(RNG):
+    @classmethod
+    def _create_rng(cls):
+        bit_generator = PCG64DXSM
+        advance = 2**63 + 2**31 + 2**15 + 1
+        seed = [12345]
+        rg = Generator(bit_generator(*seed))
+        seed_vector_bits = 64
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+
+class TestDefaultRNG(RNG):
+    @classmethod
+    def _create_rng(cls):
+        # This will duplicate some tests that directly instantiate a fresh
+        # Generator(), but that's okay.
+        bit_generator = PCG64
+        advance = 2**63 + 2**31 + 2**15 + 1
+        seed = [12345]
+        rg = np.random.default_rng(*seed)
+        seed_vector_bits = 64
+        return RNGData(bit_generator, advance, seed, rg, seed_vector_bits)
+
+    def test_default_is_pcg64(self):
+        # In order to change the default BitGenerator, we'll go through
+        # a deprecation cycle to move to a different function.
+        rg = self._create_rng().rg
+        assert_(isinstance(rg.bit_generator, PCG64))
+
+    def test_seed(self):
+        np.random.default_rng()
+        np.random.default_rng(None)
+        np.random.default_rng(12345)
+        np.random.default_rng(0)
+        np.random.default_rng(43660444402423911716352051725018508569)
+        np.random.default_rng([43660444402423911716352051725018508569,
+                               279705150948142787361475340226491943209])
+        with pytest.raises(ValueError):
+            np.random.default_rng(-1)
+        with pytest.raises(ValueError):
+            np.random.default_rng([12345, -1])
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diff --git a/python/user_packages/Python313/site-packages/numpy/testing/_private/extbuild.py b/python/user_packages/Python313/site-packages/numpy/testing/_private/extbuild.py
new file mode 100644
index 0000000000000000000000000000000000000000..62fee581b4c103b2b33976f61c5a365445e74fde
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/testing/_private/extbuild.py
@@ -0,0 +1,250 @@
+"""
+Build a c-extension module on-the-fly in tests.
+See build_and_import_extensions for usage hints
+
+"""
+
+import os
+import pathlib
+import subprocess
+import sys
+import sysconfig
+import textwrap
+
+__all__ = ['build_and_import_extension', 'compile_extension_module']
+
+
+def build_and_import_extension(
+        modname, functions, *, prologue="", build_dir=None,
+        include_dirs=None, more_init=""):
+    """
+    Build and imports a c-extension module `modname` from a list of function
+    fragments `functions`.
+
+
+    Parameters
+    ----------
+    functions : list of fragments
+        Each fragment is a sequence of func_name, calling convention, snippet.
+    prologue : string
+        Code to precede the rest, usually extra ``#include`` or ``#define``
+        macros.
+    build_dir : pathlib.Path
+        Where to build the module, usually a temporary directory
+    include_dirs : list
+        Extra directories to find include files when compiling
+    more_init : string
+        Code to appear in the module PyMODINIT_FUNC
+
+    Returns
+    -------
+    out: module
+        The module will have been loaded and is ready for use
+
+    Examples
+    --------
+    >>> functions = [("test_bytes", "METH_O", \"\"\"
+        if ( !PyBytesCheck(args)) {
+            Py_RETURN_FALSE;
+        }
+        Py_RETURN_TRUE;
+    \"\"\")]
+    >>> mod = build_and_import_extension("testme", functions)
+    >>> assert not mod.test_bytes('abc')
+    >>> assert mod.test_bytes(b'abc')
+    """
+    if include_dirs is None:
+        include_dirs = []
+    body = prologue + _make_methods(functions, modname)
+    init = """
+    PyObject *mod = PyModule_Create(&moduledef);
+    #ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+    #endif
+           """
+    if not build_dir:
+        build_dir = pathlib.Path('.')
+    if more_init:
+        init += """#define INITERROR return NULL
+                """
+        init += more_init
+    init += "\nreturn mod;"
+    source_string = _make_source(modname, init, body)
+    mod_so = compile_extension_module(
+        modname, build_dir, include_dirs, source_string)
+    import importlib.util
+    spec = importlib.util.spec_from_file_location(modname, mod_so)
+    foo = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(foo)
+    return foo
+
+
+def compile_extension_module(
+        name, builddir, include_dirs,
+        source_string, libraries=None, library_dirs=None):
+    """
+    Build an extension module and return the filename of the resulting
+    native code file.
+
+    Parameters
+    ----------
+    name : string
+        name of the module, possibly including dots if it is a module inside a
+        package.
+    builddir : pathlib.Path
+        Where to build the module, usually a temporary directory
+    include_dirs : list
+        Extra directories to find include files when compiling
+    libraries : list
+        Libraries to link into the extension module
+    library_dirs: list
+        Where to find the libraries, ``-L`` passed to the linker
+    """
+    modname = name.split('.')[-1]
+    dirname = builddir / name
+    dirname.mkdir(exist_ok=True)
+    cfile = _convert_str_to_file(source_string, dirname)
+    include_dirs = include_dirs or []
+    libraries = libraries or []
+    library_dirs = library_dirs or []
+
+    return _c_compile(
+        cfile, outputfilename=dirname / modname,
+        include_dirs=include_dirs, libraries=libraries,
+        library_dirs=library_dirs,
+        )
+
+
+def _convert_str_to_file(source, dirname):
+    """Helper function to create a file ``source.c`` in `dirname` that contains
+    the string in `source`. Returns the file name
+    """
+    filename = dirname / 'source.c'
+    with filename.open('w') as f:
+        f.write(str(source))
+    return filename
+
+
+def _make_methods(functions, modname):
+    """ Turns the name, signature, code in functions into complete functions
+    and lists them in a methods_table. Then turns the methods_table into a
+    ``PyMethodDef`` structure and returns the resulting code fragment ready
+    for compilation
+    """
+    methods_table = []
+    codes = []
+    for funcname, flags, code in functions:
+        cfuncname = f"{modname}_{funcname}"
+        if 'METH_KEYWORDS' in flags:
+            signature = '(PyObject *self, PyObject *args, PyObject *kwargs)'
+        else:
+            signature = '(PyObject *self, PyObject *args)'
+        methods_table.append(
+            "{\"%s\", (PyCFunction)%s, %s}," % (funcname, cfuncname, flags))
+        func_code = f"""
+        static PyObject* {cfuncname}{signature}
+        {{
+        {code}
+        }}
+        """
+        codes.append(func_code)
+
+    body = "\n".join(codes) + """
+    static PyMethodDef methods[] = {
+    %(methods)s
+    { NULL }
+    };
+    static struct PyModuleDef moduledef = {
+        PyModuleDef_HEAD_INIT,
+        "%(modname)s",  /* m_name */
+        NULL,           /* m_doc */
+        -1,             /* m_size */
+        methods,        /* m_methods */
+    };
+    """ % {'methods': '\n'.join(methods_table), 'modname': modname}
+    return body
+
+
+def _make_source(name, init, body):
+    """ Combines the code fragments into source code ready to be compiled
+    """
+    code = """
+    #include <Python.h>
+
+    %(body)s
+
+    PyMODINIT_FUNC
+    PyInit_%(name)s(void) {
+    %(init)s
+    }
+    """ % {
+        'name': name, 'init': init, 'body': body,
+    }
+    return code
+
+
+def _c_compile(cfile, outputfilename, include_dirs, libraries,
+               library_dirs):
+    link_extra = []
+    if sys.platform == 'win32':
+        compile_extra = ["/we4013"]
+        link_extra.append('/DEBUG')  # generate .pdb file
+    elif sys.platform.startswith('linux'):
+        compile_extra = [
+            "-O0", "-g", "-Werror=implicit-function-declaration", "-fPIC"]
+    else:
+        compile_extra = []
+
+    return build(
+        cfile, outputfilename,
+        compile_extra, link_extra,
+        include_dirs, libraries, library_dirs)
+
+
+def build(cfile, outputfilename, compile_extra, link_extra,
+          include_dirs, libraries, library_dirs):
+    "use meson to build"
+
+    build_dir = cfile.parent / "build"
+    os.makedirs(build_dir, exist_ok=True)
+    with open(cfile.parent / "meson.build", "wt") as fid:
+        link_dirs = ['-L' + d for d in library_dirs]
+        fid.write(textwrap.dedent(f"""\
+            project('foo', 'c')
+            py = import('python').find_installation(pure: false)
+            py.extension_module(
+                '{outputfilename.parts[-1]}',
+                '{cfile.parts[-1]}',
+                c_args: {compile_extra},
+                link_args: {link_dirs},
+                include_directories: {include_dirs},
+            )
+        """))
+    native_file_name = cfile.parent / ".mesonpy-native-file.ini"
+    with open(native_file_name, "wt") as fid:
+        fid.write(textwrap.dedent(f"""\
+            [binaries]
+            python = '{sys.executable}'
+        """))
+    if sys.platform == "win32":
+        subprocess.check_call(["meson", "setup",
+                               "--buildtype=release",
+                               "--vsenv", ".."],
+                              cwd=build_dir,
+                              )
+    else:
+        subprocess.check_call(["meson", "setup", "--vsenv",
+                               "..", f'--native-file={os.fspath(native_file_name)}'],
+                              cwd=build_dir
+                              )
+
+    so_name = outputfilename.parts[-1] + get_so_suffix()
+    subprocess.check_call(["meson", "compile"], cwd=build_dir)
+    os.rename(str(build_dir / so_name), cfile.parent / so_name)
+    return cfile.parent / so_name
+
+
+def get_so_suffix():
+    ret = sysconfig.get_config_var('EXT_SUFFIX')
+    assert ret
+    return ret
diff --git a/python/user_packages/Python313/site-packages/numpy/testing/_private/extbuild.pyi b/python/user_packages/Python313/site-packages/numpy/testing/_private/extbuild.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..5d7243b387bc9f2c2d80bc0f5a8ac63f29f7ee2d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/testing/_private/extbuild.pyi
@@ -0,0 +1,25 @@
+import pathlib
+import types
+from collections.abc import Sequence
+
+__all__ = ["build_and_import_extension", "compile_extension_module"]
+
+def build_and_import_extension(
+    modname: str,
+    functions: Sequence[tuple[str, str, str]],
+    *,
+    prologue: str = "",
+    build_dir: pathlib.Path | None = None,
+    include_dirs: Sequence[str] | None = None,
+    more_init: str = "",
+) -> types.ModuleType: ...
+
+#
+def compile_extension_module(
+    name: str,
+    builddir: pathlib.Path,
+    include_dirs: Sequence[str],
+    source_string: str,
+    libraries: Sequence[str] | None = None,
+    library_dirs: Sequence[str] | None = None,
+) -> pathlib.Path: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/testing/_private/utils.py b/python/user_packages/Python313/site-packages/numpy/testing/_private/utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..a2aad95a532fcf73bda8fe9b6bf03343e4dd4496
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/testing/_private/utils.py
@@ -0,0 +1,2830 @@
+"""
+Utility function to facilitate testing.
+
+"""
+import concurrent.futures
+import contextlib
+import gc
+import importlib.metadata
+import operator
+import os
+import pathlib
+import platform
+import pprint
+import re
+import shutil
+import sys
+import sysconfig
+import threading
+import warnings
+from functools import partial, wraps
+from io import StringIO
+from tempfile import mkdtemp, mkstemp
+from unittest.case import SkipTest
+from warnings import WarningMessage
+
+import numpy as np
+import numpy.linalg._umath_linalg
+from numpy import isfinite, isnan
+from numpy._core import arange, array, array_repr, empty, float32, intp, isnat, ndarray
+
+__all__ = [
+        'assert_equal', 'assert_almost_equal', 'assert_approx_equal',
+        'assert_array_equal', 'assert_array_less', 'assert_string_equal',
+        'assert_array_almost_equal', 'assert_raises', 'build_err_msg',
+        'decorate_methods', 'jiffies', 'memusage', 'print_assert_equal',
+        'rundocs', 'runstring', 'verbose', 'measure',
+        'assert_', 'assert_array_almost_equal_nulp', 'assert_raises_regex',
+        'assert_array_max_ulp', 'assert_warns', 'assert_no_warnings',
+        'assert_allclose', 'IgnoreException', 'clear_and_catch_warnings',
+        'SkipTest', 'KnownFailureException', 'temppath', 'tempdir', 'IS_PYPY',
+        'HAS_REFCOUNT', "IS_WASM", 'suppress_warnings', 'assert_array_compare',
+        'assert_no_gc_cycles', 'break_cycles', 'HAS_LAPACK64', 'IS_PYSTON',
+        'IS_MUSL', 'check_support_sve', 'NOGIL_BUILD',
+        'IS_EDITABLE', 'IS_INSTALLED', 'NUMPY_ROOT', 'run_threaded', 'IS_64BIT',
+        'BLAS_SUPPORTS_FPE',
+        ]
+
+
+class KnownFailureException(Exception):
+    '''Raise this exception to mark a test as a known failing test.'''
+    pass
+
+
+KnownFailureTest = KnownFailureException  # backwards compat
+verbose = 0
+
+NUMPY_ROOT = pathlib.Path(np.__file__).parent
+
+try:
+    np_dist = importlib.metadata.distribution('numpy')
+except importlib.metadata.PackageNotFoundError:
+    IS_INSTALLED = IS_EDITABLE = False
+else:
+    IS_INSTALLED = True
+    try:
+        if sys.version_info >= (3, 13):
+            IS_EDITABLE = np_dist.origin.dir_info.editable
+        else:
+            # Backport importlib.metadata.Distribution.origin
+            import json  # noqa: E401
+            import types
+            origin = json.loads(
+                np_dist.read_text('direct_url.json') or '{}',
+                object_hook=lambda data: types.SimpleNamespace(**data),
+            )
+            IS_EDITABLE = origin.dir_info.editable
+    except AttributeError:
+        IS_EDITABLE = False
+
+    # spin installs numpy directly via meson, instead of using meson-python, and
+    # runs the module by setting PYTHONPATH. This is problematic because the
+    # resulting installation lacks the Python metadata (.dist-info), and numpy
+    # might already be installed on the environment, causing us to find its
+    # metadata, even though we are not actually loading that package.
+    # Work around this issue by checking if the numpy root matches.
+    if not IS_EDITABLE and np_dist.locate_file('numpy') != NUMPY_ROOT:
+        IS_INSTALLED = False
+
+IS_WASM = platform.machine() in ["wasm32", "wasm64"]
+IS_PYPY = sys.implementation.name == 'pypy'
+IS_PYSTON = hasattr(sys, "pyston_version_info")
+HAS_REFCOUNT = getattr(sys, 'getrefcount', None) is not None and not IS_PYSTON
+BLAS_SUPPORTS_FPE = np._core._multiarray_umath._blas_supports_fpe(None)
+
+HAS_LAPACK64 = numpy.linalg._umath_linalg._ilp64
+
+IS_MUSL = False
+# alternate way is
+# from packaging.tags import sys_tags
+#     _tags = list(sys_tags())
+#     if 'musllinux' in _tags[0].platform:
+_v = sysconfig.get_config_var('HOST_GNU_TYPE') or ''
+if 'musl' in _v:
+    IS_MUSL = True
+
+NOGIL_BUILD = bool(sysconfig.get_config_var("Py_GIL_DISABLED"))
+IS_64BIT = np.dtype(np.intp).itemsize == 8
+
+def assert_(val, msg=''):
+    """
+    Assert that works in release mode.
+    Accepts callable msg to allow deferring evaluation until failure.
+
+    The Python built-in ``assert`` does not work when executing code in
+    optimized mode (the ``-O`` flag) - no byte-code is generated for it.
+
+    For documentation on usage, refer to the Python documentation.
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    if not val:
+        try:
+            smsg = msg()
+        except TypeError:
+            smsg = msg
+        raise AssertionError(smsg)
+
+
+if os.name == 'nt':
+    # Code "stolen" from enthought/debug/memusage.py
+    def GetPerformanceAttributes(object, counter, instance=None,
+                                 inum=-1, format=None, machine=None):
+        # NOTE: Many counters require 2 samples to give accurate results,
+        # including "% Processor Time" (as by definition, at any instant, a
+        # thread's CPU usage is either 0 or 100).  To read counters like this,
+        # you should copy this function, but keep the counter open, and call
+        # CollectQueryData() each time you need to know.
+        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
+        # (dead link)
+        # My older explanation for this was that the "AddCounter" process
+        # forced the CPU to 100%, but the above makes more sense :)
+        import win32pdh
+        if format is None:
+            format = win32pdh.PDH_FMT_LONG
+        path = win32pdh.MakeCounterPath((machine, object, instance, None,
+                                         inum, counter))
+        hq = win32pdh.OpenQuery()
+        try:
+            hc = win32pdh.AddCounter(hq, path)
+            try:
+                win32pdh.CollectQueryData(hq)
+                type, val = win32pdh.GetFormattedCounterValue(hc, format)
+                return val
+            finally:
+                win32pdh.RemoveCounter(hc)
+        finally:
+            win32pdh.CloseQuery(hq)
+
+    def memusage(processName="python", instance=0):
+        # from win32pdhutil, part of the win32all package
+        import win32pdh
+        return GetPerformanceAttributes("Process", "Virtual Bytes",
+                                        processName, instance,
+                                        win32pdh.PDH_FMT_LONG, None)
+elif sys.platform[:5] == 'linux':
+
+    def memusage(_proc_pid_stat=None):
+        """
+        Return virtual memory size in bytes of the running python.
+
+        """
+        _proc_pid_stat = _proc_pid_stat or f'/proc/{os.getpid()}/stat'
+        try:
+            with open(_proc_pid_stat) as f:
+                l = f.readline().split(' ')
+            return int(l[22])
+        except Exception:
+            return
+else:
+    def memusage():
+        """
+        Return memory usage of running python. [Not implemented]
+
+        """
+        raise NotImplementedError
+
+
+if sys.platform[:5] == 'linux':
+    def jiffies(_proc_pid_stat=None, _load_time=None):
+        """
+        Return number of jiffies elapsed.
+
+        Return number of jiffies (1/100ths of a second) that this
+        process has been scheduled in user mode. See man 5 proc.
+
+        """
+        _proc_pid_stat = _proc_pid_stat or f'/proc/{os.getpid()}/stat'
+        _load_time = _load_time or []
+        import time
+        if not _load_time:
+            _load_time.append(time.time())
+        try:
+            with open(_proc_pid_stat) as f:
+                l = f.readline().split(' ')
+            return int(l[13])
+        except Exception:
+            return int(100 * (time.time() - _load_time[0]))
+else:
+    # os.getpid is not in all platforms available.
+    # Using time is safe but inaccurate, especially when process
+    # was suspended or sleeping.
+    def jiffies(_load_time=[]):
+        """
+        Return number of jiffies elapsed.
+
+        Return number of jiffies (1/100ths of a second) that this
+        process has been scheduled in user mode. See man 5 proc.
+
+        """
+        import time
+        if not _load_time:
+            _load_time.append(time.time())
+        return int(100 * (time.time() - _load_time[0]))
+
+
+def build_err_msg(arrays, err_msg, header='Items are not equal:',
+                  verbose=True, names=('ACTUAL', 'DESIRED'), precision=8):
+    msg = ['\n' + header]
+    err_msg = str(err_msg)
+    if err_msg:
+        if err_msg.find('\n') == -1 and len(err_msg) < 79 - len(header):
+            msg = [msg[0] + ' ' + err_msg]
+        else:
+            msg.append(err_msg)
+    if verbose:
+        for i, a in enumerate(arrays):
+
+            if isinstance(a, ndarray):
+                # precision argument is only needed if the objects are ndarrays
+                r_func = partial(array_repr, precision=precision)
+            else:
+                r_func = repr
+
+            try:
+                r = r_func(a)
+            except Exception as exc:
+                r = f'[repr failed for <{type(a).__name__}>: {exc}]'
+            if r.count('\n') > 3:
+                r = '\n'.join(r.splitlines()[:3])
+                r += '...'
+            msg.append(f' {names[i]}: {r}')
+    return '\n'.join(msg)
+
+
+def assert_equal(actual, desired, err_msg='', verbose=True, *, strict=False):
+    """
+    Raises an AssertionError if two objects are not equal.
+
+    Given two objects (scalars, lists, tuples, dictionaries or numpy arrays),
+    check that all elements of these objects are equal. An exception is raised
+    at the first conflicting values.
+
+    This function handles NaN comparisons as if NaN was a "normal" number.
+    That is, AssertionError is not raised if both objects have NaNs in the same
+    positions.  This is in contrast to the IEEE standard on NaNs, which says
+    that NaN compared to anything must return False.
+
+    Parameters
+    ----------
+    actual : array_like
+        The object to check.
+    desired : array_like
+        The expected object.
+    err_msg : str, optional
+        The error message to be printed in case of failure.
+    verbose : bool, optional
+        If True, the conflicting values are appended to the error message.
+    strict : bool, optional
+        If True and either of the `actual` and `desired` arguments is an array,
+        raise an ``AssertionError`` when either the shape or the data type of
+        the arguments does not match. If neither argument is an array, this
+        parameter has no effect.
+
+        .. versionadded:: 2.0.0
+
+    Raises
+    ------
+    AssertionError
+        If actual and desired are not equal.
+
+    See Also
+    --------
+    assert_allclose
+    assert_array_almost_equal_nulp,
+    assert_array_max_ulp,
+
+    Notes
+    -----
+    When one of `actual` and `desired` is a scalar and the other is array_like, the
+    function checks that each element of the array_like is equal to the scalar.
+    Note that empty arrays are therefore considered equal to scalars.
+    This behaviour can be disabled by setting ``strict==True``.
+
+    Examples
+    --------
+    >>> np.testing.assert_equal([4, 5], [4, 6])
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Items are not equal:
+    item=1
+     ACTUAL: 5
+     DESIRED: 6
+
+    The following comparison does not raise an exception.  There are NaNs
+    in the inputs, but they are in the same positions.
+
+    >>> np.testing.assert_equal(np.array([1.0, 2.0, np.nan]), [1, 2, np.nan])
+
+    As mentioned in the Notes section, `assert_equal` has special
+    handling for scalars when one of the arguments is an array.
+    Here, the test checks that each value in `x` is 3:
+
+    >>> x = np.full((2, 5), fill_value=3)
+    >>> np.testing.assert_equal(x, 3)
+
+    Use `strict` to raise an AssertionError when comparing a scalar with an
+    array of a different shape:
+
+    >>> np.testing.assert_equal(x, 3, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not equal
+    <BLANKLINE>
+    (shapes (2, 5), () mismatch)
+     ACTUAL: array([[3, 3, 3, 3, 3],
+           [3, 3, 3, 3, 3]])
+     DESIRED: array(3)
+
+    The `strict` parameter also ensures that the array data types match:
+
+    >>> x = np.array([2, 2, 2])
+    >>> y = np.array([2., 2., 2.], dtype=np.float32)
+    >>> np.testing.assert_equal(x, y, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not equal
+    <BLANKLINE>
+    (dtypes int64, float32 mismatch)
+     ACTUAL: array([2, 2, 2])
+     DESIRED: array([2., 2., 2.], dtype=float32)
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    if isinstance(desired, dict):
+        if not isinstance(actual, dict):
+            raise AssertionError(repr(type(actual)))
+        assert_equal(len(actual), len(desired), err_msg, verbose)
+        for k in desired:
+            if k not in actual:
+                raise AssertionError(repr(k))
+            assert_equal(actual[k], desired[k], f'key={k!r}\n{err_msg}',
+                         verbose)
+        return
+    if isinstance(desired, (list, tuple)) and isinstance(actual, (list, tuple)):
+        assert_equal(len(actual), len(desired), err_msg, verbose)
+        for k in range(len(desired)):
+            assert_equal(actual[k], desired[k], f'item={k!r}\n{err_msg}',
+                         verbose)
+        return
+    from numpy import imag, iscomplexobj, real
+    from numpy._core import isscalar, ndarray, signbit
+    if isinstance(actual, ndarray) or isinstance(desired, ndarray):
+        return assert_array_equal(actual, desired, err_msg, verbose,
+                                  strict=strict)
+    msg = build_err_msg([actual, desired], err_msg, verbose=verbose)
+
+    # Handle complex numbers: separate into real/imag to handle
+    # nan/inf/negative zero correctly
+    # XXX: catch ValueError for subclasses of ndarray where iscomplex fail
+    try:
+        usecomplex = iscomplexobj(actual) or iscomplexobj(desired)
+    except (ValueError, TypeError):
+        usecomplex = False
+
+    if usecomplex:
+        if iscomplexobj(actual):
+            actualr = real(actual)
+            actuali = imag(actual)
+        else:
+            actualr = actual
+            actuali = 0
+        if iscomplexobj(desired):
+            desiredr = real(desired)
+            desiredi = imag(desired)
+        else:
+            desiredr = desired
+            desiredi = 0
+        try:
+            assert_equal(actualr, desiredr)
+            assert_equal(actuali, desiredi)
+        except AssertionError:
+            raise AssertionError(msg)
+
+    # isscalar test to check cases such as [np.nan] != np.nan
+    if isscalar(desired) != isscalar(actual):
+        raise AssertionError(msg)
+
+    try:
+        isdesnat = isnat(desired)
+        isactnat = isnat(actual)
+        dtypes_match = (np.asarray(desired).dtype.type ==
+                        np.asarray(actual).dtype.type)
+        if isdesnat and isactnat:
+            # If both are NaT (and have the same dtype -- datetime or
+            # timedelta) they are considered equal.
+            if dtypes_match:
+                return
+            else:
+                raise AssertionError(msg)
+
+    except (TypeError, ValueError, NotImplementedError):
+        pass
+
+    # Inf/nan/negative zero handling
+    try:
+        isdesnan = isnan(desired)
+        isactnan = isnan(actual)
+        if isdesnan and isactnan:
+            return  # both nan, so equal
+
+        # handle signed zero specially for floats
+        array_actual = np.asarray(actual)
+        array_desired = np.asarray(desired)
+        if (array_actual.dtype.char in 'Mm' or
+                array_desired.dtype.char in 'Mm'):
+            # version 1.18
+            # until this version, isnan failed for datetime64 and timedelta64.
+            # Now it succeeds but comparison to scalar with a different type
+            # emits a DeprecationWarning.
+            # Avoid that by skipping the next check
+            raise NotImplementedError('cannot compare to a scalar '
+                                      'with a different type')
+
+        if desired == 0 and actual == 0:
+            if not signbit(desired) == signbit(actual):
+                raise AssertionError(msg)
+
+    except (TypeError, ValueError, NotImplementedError):
+        pass
+
+    try:
+        # Explicitly use __eq__ for comparison, gh-2552
+        if not (desired == actual):
+            raise AssertionError(msg)
+
+    except (DeprecationWarning, FutureWarning) as e:
+        # this handles the case when the two types are not even comparable
+        if 'elementwise == comparison' in e.args[0]:
+            raise AssertionError(msg)
+        else:
+            raise
+
+
+def print_assert_equal(test_string, actual, desired):
+    """
+    Test if two objects are equal, and print an error message if test fails.
+
+    The test is performed with ``actual == desired``.
+
+    Parameters
+    ----------
+    test_string : str
+        The message supplied to AssertionError.
+    actual : object
+        The object to test for equality against `desired`.
+    desired : object
+        The expected result.
+
+    Examples
+    --------
+    >>> np.testing.print_assert_equal('Test XYZ of func xyz', [0, 1], [0, 1])
+    >>> np.testing.print_assert_equal('Test XYZ of func xyz', [0, 1], [0, 2])
+    Traceback (most recent call last):
+    ...
+    AssertionError: Test XYZ of func xyz failed
+    ACTUAL:
+    [0, 1]
+    DESIRED:
+    [0, 2]
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    import pprint
+
+    if not (actual == desired):
+        msg = StringIO()
+        msg.write(test_string)
+        msg.write(' failed\nACTUAL: \n')
+        pprint.pprint(actual, msg)
+        msg.write('DESIRED: \n')
+        pprint.pprint(desired, msg)
+        raise AssertionError(msg.getvalue())
+
+
+def assert_almost_equal(actual, desired, decimal=7, err_msg='', verbose=True):
+    """
+    Raises an AssertionError if two items are not equal up to desired
+    precision.
+
+    .. note:: It is recommended to use one of `assert_allclose`,
+              `assert_array_almost_equal_nulp` or `assert_array_max_ulp`
+              instead of this function for more consistent floating point
+              comparisons.
+
+    The test verifies that the elements of `actual` and `desired` satisfy::
+
+        abs(desired-actual) < float64(1.5 * 10**(-decimal))
+
+    That is a looser test than originally documented, but agrees with what the
+    actual implementation in `assert_array_almost_equal` did up to rounding
+    vagaries. An exception is raised at conflicting values. For ndarrays this
+    delegates to assert_array_almost_equal
+
+    Parameters
+    ----------
+    actual : array_like
+        The object to check.
+    desired : array_like
+        The expected object.
+    decimal : int, optional
+        Desired precision, default is 7.
+    err_msg : str, optional
+        The error message to be printed in case of failure.
+    verbose : bool, optional
+        If True, the conflicting values are appended to the error message.
+
+    Raises
+    ------
+    AssertionError
+      If actual and desired are not equal up to specified precision.
+
+    See Also
+    --------
+    assert_allclose: Compare two array_like objects for equality with desired
+                     relative and/or absolute precision.
+    assert_array_almost_equal_nulp, assert_array_max_ulp, assert_equal
+
+    Examples
+    --------
+    >>> from numpy.testing import assert_almost_equal
+    >>> assert_almost_equal(2.3333333333333, 2.33333334)
+    >>> assert_almost_equal(2.3333333333333, 2.33333334, decimal=10)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not almost equal to 10 decimals
+     ACTUAL: 2.3333333333333
+     DESIRED: 2.33333334
+
+    >>> assert_almost_equal(np.array([1.0,2.3333333333333]),
+    ...                     np.array([1.0,2.33333334]), decimal=9)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not almost equal to 9 decimals
+    <BLANKLINE>
+    Mismatched elements: 1 / 2 (50%)
+    Mismatch at index:
+     [1]: 2.3333333333333 (ACTUAL), 2.33333334 (DESIRED)
+    Max absolute difference among violations: 6.66669964e-09
+    Max relative difference among violations: 2.85715698e-09
+     ACTUAL: array([1.         , 2.333333333])
+     DESIRED: array([1.        , 2.33333334])
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    from numpy import imag, iscomplexobj, real
+    from numpy._core import ndarray
+
+    # Handle complex numbers: separate into real/imag to handle
+    # nan/inf/negative zero correctly
+    # XXX: catch ValueError for subclasses of ndarray where iscomplex fail
+    try:
+        usecomplex = iscomplexobj(actual) or iscomplexobj(desired)
+    except ValueError:
+        usecomplex = False
+
+    def _build_err_msg():
+        header = ('Arrays are not almost equal to %d decimals' % decimal)
+        return build_err_msg([actual, desired], err_msg, verbose=verbose,
+                             header=header)
+
+    if usecomplex:
+        if iscomplexobj(actual):
+            actualr = real(actual)
+            actuali = imag(actual)
+        else:
+            actualr = actual
+            actuali = 0
+        if iscomplexobj(desired):
+            desiredr = real(desired)
+            desiredi = imag(desired)
+        else:
+            desiredr = desired
+            desiredi = 0
+        try:
+            assert_almost_equal(actualr, desiredr, decimal=decimal)
+            assert_almost_equal(actuali, desiredi, decimal=decimal)
+        except AssertionError:
+            raise AssertionError(_build_err_msg())
+
+    if isinstance(actual, (ndarray, tuple, list)) \
+            or isinstance(desired, (ndarray, tuple, list)):
+        return assert_array_almost_equal(actual, desired, decimal, err_msg)
+    try:
+        # If one of desired/actual is not finite, handle it specially here:
+        # check that both are nan if any is a nan, and test for equality
+        # otherwise
+        if not (isfinite(desired) and isfinite(actual)):
+            if isnan(desired) or isnan(actual):
+                if not (isnan(desired) and isnan(actual)):
+                    raise AssertionError(_build_err_msg())
+            elif not desired == actual:
+                raise AssertionError(_build_err_msg())
+            return
+    except (NotImplementedError, TypeError):
+        pass
+    if abs(desired - actual) >= np.float64(1.5 * 10.0**(-decimal)):
+        raise AssertionError(_build_err_msg())
+
+
+def assert_approx_equal(actual, desired, significant=7, err_msg='',
+                        verbose=True):
+    """
+    Raises an AssertionError if two items are not equal up to significant
+    digits.
+
+    .. note:: It is recommended to use one of `assert_allclose`,
+              `assert_array_almost_equal_nulp` or `assert_array_max_ulp`
+              instead of this function for more consistent floating point
+              comparisons.
+
+    Given two numbers, check that they are approximately equal.
+    Approximately equal is defined as the number of significant digits
+    that agree.
+
+    Parameters
+    ----------
+    actual : scalar
+        The object to check.
+    desired : scalar
+        The expected object.
+    significant : int, optional
+        Desired precision, default is 7.
+    err_msg : str, optional
+        The error message to be printed in case of failure.
+    verbose : bool, optional
+        If True, the conflicting values are appended to the error message.
+
+    Raises
+    ------
+    AssertionError
+      If actual and desired are not equal up to specified precision.
+
+    See Also
+    --------
+    assert_allclose: Compare two array_like objects for equality with desired
+                     relative and/or absolute precision.
+    assert_array_almost_equal_nulp, assert_array_max_ulp, assert_equal
+
+    Examples
+    --------
+    >>> np.testing.assert_approx_equal(0.12345677777777e-20, 0.1234567e-20)
+    >>> np.testing.assert_approx_equal(0.12345670e-20, 0.12345671e-20,
+    ...                                significant=8)
+    >>> np.testing.assert_approx_equal(0.12345670e-20, 0.12345672e-20,
+    ...                                significant=8)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Items are not equal to 8 significant digits:
+     ACTUAL: 1.234567e-21
+     DESIRED: 1.2345672e-21
+
+    the evaluated condition that raises the exception is
+
+    >>> abs(0.12345670e-20/1e-21 - 0.12345672e-20/1e-21) >= 10**-(8-1)
+    True
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    import numpy as np
+
+    (actual, desired) = map(float, (actual, desired))
+    if desired == actual:
+        return
+    # Normalized the numbers to be in range (-10.0,10.0)
+    # scale = float(pow(10,math.floor(math.log10(0.5*(abs(desired)+abs(actual))))))
+    with np.errstate(invalid='ignore'):
+        scale = 0.5 * (np.abs(desired) + np.abs(actual))
+        scale = np.power(10, np.floor(np.log10(scale)))
+    try:
+        sc_desired = desired / scale
+    except ZeroDivisionError:
+        sc_desired = 0.0
+    try:
+        sc_actual = actual / scale
+    except ZeroDivisionError:
+        sc_actual = 0.0
+    msg = build_err_msg(
+        [actual, desired], err_msg,
+        header='Items are not equal to %d significant digits:' % significant,
+        verbose=verbose)
+    try:
+        # If one of desired/actual is not finite, handle it specially here:
+        # check that both are nan if any is a nan, and test for equality
+        # otherwise
+        if not (isfinite(desired) and isfinite(actual)):
+            if isnan(desired) or isnan(actual):
+                if not (isnan(desired) and isnan(actual)):
+                    raise AssertionError(msg)
+            elif not desired == actual:
+                raise AssertionError(msg)
+            return
+    except (TypeError, NotImplementedError):
+        pass
+    if np.abs(sc_desired - sc_actual) >= np.power(10., -(significant - 1)):
+        raise AssertionError(msg)
+
+
+def assert_array_compare(comparison, x, y, err_msg='', verbose=True, header='',
+                         precision=6, equal_nan=True, equal_inf=True,
+                         *, strict=False, names=('ACTUAL', 'DESIRED')):
+    __tracebackhide__ = True  # Hide traceback for py.test
+    from numpy._core import all, array2string, errstate, inf, isnan, max, object_
+
+    x = np.asanyarray(x)
+    y = np.asanyarray(y)
+
+    # original array for output formatting
+    ox, oy = x, y
+
+    def isnumber(x):
+        return type(x.dtype)._is_numeric
+
+    def istime(x):
+        return x.dtype.char in "Mm"
+
+    def isvstring(x):
+        return x.dtype.char == "T"
+
+    def robust_any_difference(x, y):
+        # We include work-arounds here to handle three types of slightly
+        # pathological ndarray subclasses:
+        # (1) all() on fully masked arrays returns np.ma.masked, so we use != True
+        #     (np.ma.masked != True evaluates as np.ma.masked, which is falsy).
+        # (2) __eq__ on some ndarray subclasses returns Python booleans
+        #     instead of element-wise comparisons, so we cast to np.bool() in
+        #     that case (or in case __eq__ returns some other value with no
+        #     all() method).
+        # (3) subclasses with bare-bones __array_function__ implementations may
+        #     not implement np.all(), so favor using the .all() method
+        # We are not committed to supporting cases (2) and (3), but it's nice to
+        # support them if possible.
+        result = x == y
+        if not hasattr(result, "all") or not callable(result.all):
+            result = np.bool(result)
+        return result.all() != True
+
+    def func_assert_same_pos(x, y, func=isnan, hasval='nan'):
+        """Handling nan/inf.
+
+        Combine results of running func on x and y, checking that they are True
+        at the same locations.
+
+        """
+        __tracebackhide__ = True  # Hide traceback for py.test
+
+        x_id = func(x)
+        y_id = func(y)
+        if robust_any_difference(x_id, y_id):
+            msg = build_err_msg(
+                [x, y],
+                err_msg + '\n%s location mismatch:'
+                % (hasval), verbose=verbose, header=header,
+                names=names,
+                precision=precision)
+            raise AssertionError(msg)
+        # If there is a scalar, then here we know the array has the same
+        # flag as it everywhere, so we should return the scalar flag.
+        # np.ma.masked is also handled and converted to np.False_ (even if the other
+        # array has nans/infs etc.; that's OK given the handling later of fully-masked
+        # results).
+        if isinstance(x_id, bool) or x_id.ndim == 0:
+            return np.bool(x_id)
+        elif isinstance(y_id, bool) or y_id.ndim == 0:
+            return np.bool(y_id)
+        else:
+            return y_id
+
+    def assert_same_inf_values(x, y, infs_mask):
+        """
+        Verify all inf values match in the two arrays
+        """
+        __tracebackhide__ = True  # Hide traceback for py.test
+
+        if not infs_mask.any():
+            return
+        if x.ndim > 0 and y.ndim > 0:
+            x = x[infs_mask]
+            y = y[infs_mask]
+        else:
+            assert infs_mask.all()
+
+        if robust_any_difference(x, y):
+            msg = build_err_msg(
+                [x, y],
+                err_msg + '\ninf values mismatch:',
+                verbose=verbose, header=header,
+                names=names,
+                precision=precision)
+            raise AssertionError(msg)
+
+    try:
+        if strict:
+            cond = x.shape == y.shape and x.dtype == y.dtype
+        else:
+            cond = (x.shape == () or y.shape == ()) or x.shape == y.shape
+        if not cond:
+            if x.shape != y.shape:
+                reason = f'\n(shapes {x.shape}, {y.shape} mismatch)'
+            else:
+                reason = f'\n(dtypes {x.dtype}, {y.dtype} mismatch)'
+            msg = build_err_msg([x, y],
+                                err_msg
+                                + reason,
+                                verbose=verbose, header=header,
+                                names=names,
+                                precision=precision)
+            raise AssertionError(msg)
+
+        flagged = np.bool(False)
+        if isnumber(x) and isnumber(y):
+            if equal_nan:
+                flagged = func_assert_same_pos(x, y, func=isnan, hasval='nan')
+
+            if equal_inf:
+                # If equal_nan=True, skip comparing nans below for equality if they are
+                # also infs (e.g. inf+nanj) since that would always fail.
+                isinf_func = lambda xy: np.logical_and(np.isinf(xy), np.invert(flagged))
+                infs_mask = func_assert_same_pos(
+                    x, y,
+                    func=isinf_func,
+                    hasval='inf')
+                assert_same_inf_values(x, y, infs_mask)
+                flagged |= infs_mask
+
+        elif istime(x) and istime(y):
+            # If one is datetime64 and the other timedelta64 there is no point
+            if equal_nan and x.dtype.type == y.dtype.type:
+                flagged = func_assert_same_pos(x, y, func=isnat, hasval="NaT")
+
+        elif isvstring(x) and isvstring(y):
+            dt = x.dtype
+            if equal_nan and dt == y.dtype and hasattr(dt, 'na_object'):
+                is_nan = (isinstance(dt.na_object, float) and
+                          np.isnan(dt.na_object))
+                bool_errors = 0
+                try:
+                    bool(dt.na_object)
+                except TypeError:
+                    bool_errors = 1
+                if is_nan or bool_errors:
+                    # nan-like NA object
+                    flagged = func_assert_same_pos(
+                        x, y, func=isnan, hasval=x.dtype.na_object)
+
+        if flagged.ndim > 0:
+            x, y = x[~flagged], y[~flagged]
+            # Only do the comparison if actual values are left
+            if x.size == 0:
+                return
+        elif flagged:
+            # no sense doing comparison if everything is flagged.
+            return
+
+        val = comparison(x, y)
+        invalids = np.logical_not(val)
+
+        if isinstance(val, bool):
+            cond = val
+            reduced = array([val])
+        else:
+            reduced = val.ravel()
+            cond = reduced.all()
+
+        # The below comparison is a hack to ensure that fully masked
+        # results, for which val.ravel().all() returns np.ma.masked,
+        # do not trigger a failure (np.ma.masked != True evaluates as
+        # np.ma.masked, which is falsy).
+        if cond != True:
+            n_mismatch = reduced.size - reduced.sum(dtype=intp)
+            n_elements = flagged.size if flagged.ndim != 0 else reduced.size
+            percent_mismatch = 100 * n_mismatch / n_elements
+            remarks = [f'Mismatched elements: {n_mismatch} / {n_elements} '
+                       f'({percent_mismatch:.3g}%)']
+            if invalids.ndim != 0:
+                if flagged.ndim > 0:
+                    positions = np.argwhere(np.asarray(~flagged))[invalids]
+                else:
+                    positions = np.argwhere(np.asarray(invalids))
+                s = "\n".join(
+                    [
+                        f" {p.tolist()}: {ox if ox.ndim == 0 else ox[tuple(p)]} "
+                        f"({names[0]}), {oy if oy.ndim == 0 else oy[tuple(p)]} "
+                        f"({names[1]})"
+                        for p in positions[:5]
+                    ]
+                )
+                if len(positions) == 1:
+                    remarks.append(
+                        f"Mismatch at index:\n{s}"
+                    )
+                elif len(positions) <= 5:
+                    remarks.append(
+                        f"Mismatch at indices:\n{s}"
+                    )
+                else:
+                    remarks.append(
+                        f"First 5 mismatches are at indices:\n{s}"
+                    )
+
+            with errstate(all='ignore'):
+                # ignore errors for non-numeric types
+                with contextlib.suppress(TypeError):
+                    error = abs(x - y)
+                    if np.issubdtype(x.dtype, np.unsignedinteger):
+                        error2 = abs(y - x)
+                        np.minimum(error, error2, out=error)
+
+                    reduced_error = error[invalids]
+                    max_abs_error = max(reduced_error)
+                    if getattr(error, 'dtype', object_) == object_:
+                        remarks.append(
+                            'Max absolute difference among violations: '
+                            + str(max_abs_error))
+                    else:
+                        remarks.append(
+                            'Max absolute difference among violations: '
+                            + array2string(max_abs_error))
+
+                    # note: this definition of relative error matches that one
+                    # used by assert_allclose (found in np.isclose)
+                    # Filter values where the divisor would be zero
+                    nonzero = np.bool(y != 0)
+                    nonzero_and_invalid = np.logical_and(invalids, nonzero)
+
+                    if all(~nonzero_and_invalid):
+                        max_rel_error = array(inf)
+                    else:
+                        nonzero_invalid_error = error[nonzero_and_invalid]
+                        broadcasted_y = np.broadcast_to(y, error.shape)
+                        nonzero_invalid_y = broadcasted_y[nonzero_and_invalid]
+                        max_rel_error = max(nonzero_invalid_error
+                                            / abs(nonzero_invalid_y))
+
+                    if getattr(error, 'dtype', object_) == object_:
+                        remarks.append(
+                            'Max relative difference among violations: '
+                            + str(max_rel_error))
+                    else:
+                        remarks.append(
+                            'Max relative difference among violations: '
+                            + array2string(max_rel_error))
+            err_msg = str(err_msg)
+            err_msg += '\n' + '\n'.join(remarks)
+            msg = build_err_msg([ox, oy], err_msg,
+                                verbose=verbose, header=header,
+                                names=names,
+                                precision=precision)
+            raise AssertionError(msg)
+    except ValueError:
+        import traceback
+        efmt = traceback.format_exc()
+        header = f'error during assertion:\n\n{efmt}\n\n{header}'
+
+        msg = build_err_msg([x, y], err_msg, verbose=verbose, header=header,
+                            names=names, precision=precision)
+        raise ValueError(msg)
+
+
+def assert_array_equal(actual, desired, err_msg='', verbose=True, *,
+                       strict=False):
+    """
+    Raises an AssertionError if two array_like objects are not equal.
+
+    Given two array_like objects, check that the shape is equal and all
+    elements of these objects are equal (but see the Notes for the special
+    handling of a scalar). An exception is raised at shape mismatch or
+    conflicting values. In contrast to the standard usage in numpy, NaNs
+    are compared like numbers, no assertion is raised if both objects have
+    NaNs in the same positions.
+
+    The usual caution for verifying equality with floating point numbers is
+    advised.
+
+    .. note:: When either `actual` or `desired` is already an instance of
+        `numpy.ndarray` and `desired` is not a ``dict``, the behavior of
+        ``assert_equal(actual, desired)`` is identical to the behavior of this
+        function. Otherwise, this function performs `np.asanyarray` on the
+        inputs before comparison, whereas `assert_equal` defines special
+        comparison rules for common Python types. For example, only
+        `assert_equal` can be used to compare nested Python lists. In new code,
+        consider using only `assert_equal`, explicitly converting either
+        `actual` or `desired` to arrays if the behavior of `assert_array_equal`
+        is desired.
+
+    Parameters
+    ----------
+    actual : array_like
+        The actual object to check.
+    desired : array_like
+        The desired, expected object.
+    err_msg : str, optional
+        The error message to be printed in case of failure.
+    verbose : bool, optional
+        If True, the conflicting values are appended to the error message.
+    strict : bool, optional
+        If True, raise an AssertionError when either the shape or the data
+        type of the array_like objects does not match. The special
+        handling for scalars mentioned in the Notes section is disabled.
+
+        .. versionadded:: 1.24.0
+
+    Raises
+    ------
+    AssertionError
+        If actual and desired objects are not equal.
+
+    See Also
+    --------
+    assert_allclose: Compare two array_like objects for equality with desired
+                     relative and/or absolute precision.
+    assert_array_almost_equal_nulp, assert_array_max_ulp, assert_equal
+
+    Notes
+    -----
+    When one of `actual` and `desired` is a scalar and the other is array_like, the
+    function checks that each element of the array_like is equal to the scalar.
+    Note that empty arrays are therefore considered equal to scalars.
+    This behaviour can be disabled by setting ``strict==True``.
+
+    Examples
+    --------
+    The first assert does not raise an exception:
+
+    >>> np.testing.assert_array_equal([1.0,2.33333,np.nan],
+    ...                               [np.exp(0),2.33333, np.nan])
+
+    Assert fails with numerical imprecision with floats:
+
+    >>> np.testing.assert_array_equal([1.0,np.pi,np.nan],
+    ...                               [1, np.sqrt(np.pi)**2, np.nan])
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not equal
+    <BLANKLINE>
+    Mismatched elements: 1 / 3 (33.3%)
+    Mismatch at index:
+     [1]: 3.141592653589793 (ACTUAL), 3.1415926535897927 (DESIRED)
+    Max absolute difference among violations: 4.4408921e-16
+    Max relative difference among violations: 1.41357986e-16
+     ACTUAL: array([1.      , 3.141593,      nan])
+     DESIRED: array([1.      , 3.141593,      nan])
+
+    Use `assert_allclose` or one of the nulp (number of floating point values)
+    functions for these cases instead:
+
+    >>> np.testing.assert_allclose([1.0,np.pi,np.nan],
+    ...                            [1, np.sqrt(np.pi)**2, np.nan],
+    ...                            rtol=1e-10, atol=0)
+
+    As mentioned in the Notes section, `assert_array_equal` has special
+    handling for scalars. Here the test checks that each value in `x` is 3:
+
+    >>> x = np.full((2, 5), fill_value=3)
+    >>> np.testing.assert_array_equal(x, 3)
+
+    Use `strict` to raise an AssertionError when comparing a scalar with an
+    array:
+
+    >>> np.testing.assert_array_equal(x, 3, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not equal
+    <BLANKLINE>
+    (shapes (2, 5), () mismatch)
+     ACTUAL: array([[3, 3, 3, 3, 3],
+           [3, 3, 3, 3, 3]])
+     DESIRED: array(3)
+
+    The `strict` parameter also ensures that the array data types match:
+
+    >>> x = np.array([2, 2, 2])
+    >>> y = np.array([2., 2., 2.], dtype=np.float32)
+    >>> np.testing.assert_array_equal(x, y, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not equal
+    <BLANKLINE>
+    (dtypes int64, float32 mismatch)
+     ACTUAL: array([2, 2, 2])
+     DESIRED: array([2., 2., 2.], dtype=float32)
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    assert_array_compare(operator.__eq__, actual, desired, err_msg=err_msg,
+                         verbose=verbose, header='Arrays are not equal',
+                         strict=strict)
+
+
+def assert_array_almost_equal(actual, desired, decimal=6, err_msg='',
+                              verbose=True):
+    """
+    Raises an AssertionError if two objects are not equal up to desired
+    precision.
+
+    .. note:: It is recommended to use one of `assert_allclose`,
+              `assert_array_almost_equal_nulp` or `assert_array_max_ulp`
+              instead of this function for more consistent floating point
+              comparisons.
+
+    The test verifies identical shapes and that the elements of ``actual`` and
+    ``desired`` satisfy::
+
+        abs(desired-actual) < 1.5 * 10**(-decimal)
+
+    That is a looser test than originally documented, but agrees with what the
+    actual implementation did up to rounding vagaries. An exception is raised
+    at shape mismatch or conflicting values. In contrast to the standard usage
+    in numpy, NaNs are compared like numbers, no assertion is raised if both
+    objects have NaNs in the same positions.
+
+    Parameters
+    ----------
+    actual : array_like
+        The actual object to check.
+    desired : array_like
+        The desired, expected object.
+    decimal : int, optional
+        Desired precision, default is 6.
+    err_msg : str, optional
+      The error message to be printed in case of failure.
+    verbose : bool, optional
+        If True, the conflicting values are appended to the error message.
+
+    Raises
+    ------
+    AssertionError
+        If actual and desired are not equal up to specified precision.
+
+    See Also
+    --------
+    assert_allclose: Compare two array_like objects for equality with desired
+                     relative and/or absolute precision.
+    assert_array_almost_equal_nulp, assert_array_max_ulp, assert_equal
+
+    Examples
+    --------
+    the first assert does not raise an exception
+
+    >>> np.testing.assert_array_almost_equal([1.0,2.333,np.nan],
+    ...                                      [1.0,2.333,np.nan])
+
+    >>> np.testing.assert_array_almost_equal([1.0,2.33333,np.nan],
+    ...                                      [1.0,2.33339,np.nan], decimal=5)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not almost equal to 5 decimals
+    <BLANKLINE>
+    Mismatched elements: 1 / 3 (33.3%)
+    Mismatch at index:
+     [1]: 2.33333 (ACTUAL), 2.33339 (DESIRED)
+    Max absolute difference among violations: 6.e-05
+    Max relative difference among violations: 2.57136612e-05
+     ACTUAL: array([1.     , 2.33333,     nan])
+     DESIRED: array([1.     , 2.33339,     nan])
+
+    >>> np.testing.assert_array_almost_equal([1.0,2.33333,np.nan],
+    ...                                      [1.0,2.33333, 5], decimal=5)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not almost equal to 5 decimals
+    <BLANKLINE>
+    nan location mismatch:
+     ACTUAL: array([1.     , 2.33333,     nan])
+     DESIRED: array([1.     , 2.33333, 5.     ])
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    from numpy._core import number, result_type
+    from numpy._core.numerictypes import issubdtype
+
+    def compare(x, y):
+        # make sure y is an inexact type to avoid abs(MIN_INT); will cause
+        # casting of x later.
+        dtype = result_type(y, 1.)
+        y = np.asanyarray(y, dtype)
+        z = abs(x - y)
+
+        if not issubdtype(z.dtype, number):
+            z = z.astype(np.float64)  # handle object arrays
+
+        return z < 1.5 * 10.0**(-decimal)
+
+    assert_array_compare(compare, actual, desired, err_msg=err_msg,
+                         verbose=verbose,
+             header=('Arrays are not almost equal to %d decimals' % decimal),
+             precision=decimal)
+
+
+def assert_array_less(x, y, err_msg='', verbose=True, *, strict=False):
+    """
+    Raises an AssertionError if two array_like objects are not ordered by less
+    than.
+
+    Given two array_like objects `x` and `y`, check that the shape is equal and
+    all elements of `x` are strictly less than the corresponding elements of
+    `y` (but see the Notes for the special handling of a scalar). An exception
+    is raised at shape mismatch or values that are not correctly ordered. In
+    contrast to the  standard usage in NumPy, no assertion is raised if both
+    objects have NaNs in the same positions.
+
+    Parameters
+    ----------
+    x : array_like
+      The smaller object to check.
+    y : array_like
+      The larger object to compare.
+    err_msg : string
+      The error message to be printed in case of failure.
+    verbose : bool
+        If True, the conflicting values are appended to the error message.
+    strict : bool, optional
+        If True, raise an AssertionError when either the shape or the data
+        type of the array_like objects does not match. The special
+        handling for scalars mentioned in the Notes section is disabled.
+
+        .. versionadded:: 2.0.0
+
+    Raises
+    ------
+    AssertionError
+      If x is not strictly smaller than y, element-wise.
+
+    See Also
+    --------
+    assert_array_equal: tests objects for equality
+    assert_array_almost_equal: test objects for equality up to precision
+
+    Notes
+    -----
+    When one of `x` and `y` is a scalar and the other is array_like, the
+    function performs the comparison as though the scalar were broadcasted
+    to the shape of the array. This behaviour can be disabled with the `strict`
+    parameter.
+
+    Examples
+    --------
+    The following assertion passes because each finite element of `x` is
+    strictly less than the corresponding element of `y`, and the NaNs are in
+    corresponding locations.
+
+    >>> x = [1.0, 1.0, np.nan]
+    >>> y = [1.1, 2.0, np.nan]
+    >>> np.testing.assert_array_less(x, y)
+
+    The following assertion fails because the zeroth element of `x` is no
+    longer strictly less than the zeroth element of `y`.
+
+    >>> y[0] = 1
+    >>> np.testing.assert_array_less(x, y)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not strictly ordered `x < y`
+    <BLANKLINE>
+    Mismatched elements: 1 / 3 (33.3%)
+    Mismatch at index:
+     [0]: 1.0 (x), 1.0 (y)
+    Max absolute difference among violations: 0.
+    Max relative difference among violations: 0.
+     x: array([ 1.,  1., nan])
+     y: array([ 1.,  2., nan])
+
+    Here, `y` is a scalar, so each element of `x` is compared to `y`, and
+    the assertion passes.
+
+    >>> x = [1.0, 4.0]
+    >>> y = 5.0
+    >>> np.testing.assert_array_less(x, y)
+
+    However, with ``strict=True``, the assertion will fail because the shapes
+    do not match.
+
+    >>> np.testing.assert_array_less(x, y, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not strictly ordered `x < y`
+    <BLANKLINE>
+    (shapes (2,), () mismatch)
+     x: array([1., 4.])
+     y: array(5.)
+
+    With ``strict=True``, the assertion also fails if the dtypes of the two
+    arrays do not match.
+
+    >>> y = [5, 5]
+    >>> np.testing.assert_array_less(x, y, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Arrays are not strictly ordered `x < y`
+    <BLANKLINE>
+    (dtypes float64, int64 mismatch)
+     x: array([1., 4.])
+     y: array([5, 5])
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    assert_array_compare(operator.__lt__, x, y, err_msg=err_msg,
+                         verbose=verbose,
+                         header='Arrays are not strictly ordered `x < y`',
+                         equal_inf=False,
+                         strict=strict,
+                         names=('x', 'y'))
+
+
+def runstring(astr, dict):
+    exec(astr, dict)
+
+
+def assert_string_equal(actual, desired):
+    """
+    Test if two strings are equal.
+
+    If the given strings are equal, `assert_string_equal` does nothing.
+    If they are not equal, an AssertionError is raised, and the diff
+    between the strings is shown.
+
+    Parameters
+    ----------
+    actual : str
+        The string to test for equality against the expected string.
+    desired : str
+        The expected string.
+
+    Examples
+    --------
+    >>> np.testing.assert_string_equal('abc', 'abc')
+    >>> np.testing.assert_string_equal('abc', 'abcd')
+    Traceback (most recent call last):
+      File "<stdin>", line 1, in <module>
+    ...
+    AssertionError: Differences in strings:
+    - abc+ abcd?    +
+
+    """
+    # delay import of difflib to reduce startup time
+    __tracebackhide__ = True  # Hide traceback for py.test
+    import difflib
+
+    if not isinstance(actual, str):
+        raise AssertionError(repr(type(actual)))
+    if not isinstance(desired, str):
+        raise AssertionError(repr(type(desired)))
+    if desired == actual:
+        return
+
+    diff = list(difflib.Differ().compare(actual.splitlines(True),
+                desired.splitlines(True)))
+    diff_list = []
+    while diff:
+        d1 = diff.pop(0)
+        if d1.startswith('  '):
+            continue
+        if d1.startswith('- '):
+            l = [d1]
+            d2 = diff.pop(0)
+            if d2.startswith('? '):
+                l.append(d2)
+                d2 = diff.pop(0)
+            if not d2.startswith('+ '):
+                raise AssertionError(repr(d2))
+            l.append(d2)
+            if diff:
+                d3 = diff.pop(0)
+                if d3.startswith('? '):
+                    l.append(d3)
+                else:
+                    diff.insert(0, d3)
+            if d2[2:] == d1[2:]:
+                continue
+            diff_list.extend(l)
+            continue
+        raise AssertionError(repr(d1))
+    if not diff_list:
+        return
+    msg = f"Differences in strings:\n{''.join(diff_list).rstrip()}"
+    if actual != desired:
+        raise AssertionError(msg)
+
+
+def rundocs(filename=None, raise_on_error=True):
+    """
+    Run doctests found in the given file.
+
+    By default `rundocs` raises an AssertionError on failure.
+
+    Parameters
+    ----------
+    filename : str
+        The path to the file for which the doctests are run.
+    raise_on_error : bool
+        Whether to raise an AssertionError when a doctest fails. Default is
+        True.
+
+    Notes
+    -----
+    The doctests can be run by the user/developer by adding the ``doctests``
+    argument to the ``test()`` call. For example, to run all tests (including
+    doctests) for ``numpy.lib``:
+
+    >>> np.lib.test(doctests=True)  # doctest: +SKIP
+    """
+    import doctest
+
+    from numpy.distutils.misc_util import exec_mod_from_location
+    if filename is None:
+        f = sys._getframe(1)
+        filename = f.f_globals['__file__']
+    name = os.path.splitext(os.path.basename(filename))[0]
+    m = exec_mod_from_location(name, filename)
+
+    tests = doctest.DocTestFinder().find(m)
+    runner = doctest.DocTestRunner(verbose=False)
+
+    msg = []
+    if raise_on_error:
+        out = msg.append
+    else:
+        out = None
+
+    for test in tests:
+        runner.run(test, out=out)
+
+    if runner.failures > 0 and raise_on_error:
+        raise AssertionError("Some doctests failed:\n%s" % "\n".join(msg))
+
+
+def check_support_sve(__cache=[]):
+    """
+    gh-22982
+    """
+
+    if __cache:
+        return __cache[0]
+
+    import subprocess
+    cmd = 'lscpu'
+    try:
+        output = subprocess.run(cmd, capture_output=True, text=True)
+        result = 'sve' in output.stdout
+    except (OSError, subprocess.SubprocessError):
+        result = False
+    __cache.append(result)
+    return __cache[0]
+
+
+#
+# assert_raises and assert_raises_regex are taken from unittest.
+#
+import unittest
+
+
+class _Dummy(unittest.TestCase):
+    def nop(self):
+        pass
+
+
+_d = _Dummy('nop')
+
+
+def assert_raises(*args, **kwargs):
+    """
+    assert_raises(exception_class, callable, *args, **kwargs)
+    assert_raises(exception_class)
+
+    Fail unless an exception of class exception_class is thrown
+    by callable when invoked with arguments args and keyword
+    arguments kwargs. If a different type of exception is
+    thrown, it will not be caught, and the test case will be
+    deemed to have suffered an error, exactly as for an
+    unexpected exception.
+
+    Alternatively, `assert_raises` can be used as a context manager:
+
+    >>> from numpy.testing import assert_raises
+    >>> with assert_raises(ZeroDivisionError):
+    ...     1 / 0
+
+    is equivalent to
+
+    >>> def div(x, y):
+    ...     return x / y
+    >>> assert_raises(ZeroDivisionError, div, 1, 0)
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    return _d.assertRaises(*args, **kwargs)
+
+
+def assert_raises_regex(exception_class, expected_regexp, *args, **kwargs):
+    """
+    assert_raises_regex(exception_class, expected_regexp, callable, *args,
+                        **kwargs)
+    assert_raises_regex(exception_class, expected_regexp)
+
+    Fail unless an exception of class exception_class and with message that
+    matches expected_regexp is thrown by callable when invoked with arguments
+    args and keyword arguments kwargs.
+
+    Alternatively, can be used as a context manager like `assert_raises`.
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    return _d.assertRaisesRegex(exception_class, expected_regexp, *args, **kwargs)
+
+
+def decorate_methods(cls, decorator, testmatch=None):
+    """
+    Apply a decorator to all methods in a class matching a regular expression.
+
+    The given decorator is applied to all public methods of `cls` that are
+    matched by the regular expression `testmatch`
+    (``testmatch.search(methodname)``). Methods that are private, i.e. start
+    with an underscore, are ignored.
+
+    Parameters
+    ----------
+    cls : class
+        Class whose methods to decorate.
+    decorator : function
+        Decorator to apply to methods
+    testmatch : compiled regexp or str, optional
+        The regular expression. Default value is None, in which case the
+        nose default (``re.compile(r'(?:^|[\\b_\\.%s-])[Tt]est' % os.sep)``)
+        is used.
+        If `testmatch` is a string, it is compiled to a regular expression
+        first.
+
+    """
+    if testmatch is None:
+        testmatch = re.compile(r'(?:^|[\\b_\\.%s-])[Tt]est' % os.sep)
+    else:
+        testmatch = re.compile(testmatch)
+    cls_attr = cls.__dict__
+
+    # delayed import to reduce startup time
+    from inspect import isfunction
+
+    methods = [_m for _m in cls_attr.values() if isfunction(_m)]
+    for function in methods:
+        try:
+            if hasattr(function, 'compat_func_name'):
+                funcname = function.compat_func_name
+            else:
+                funcname = function.__name__
+        except AttributeError:
+            # not a function
+            continue
+        if testmatch.search(funcname) and not funcname.startswith('_'):
+            setattr(cls, funcname, decorator(function))
+
+
+def measure(code_str, times=1, label=None):
+    """
+    Return elapsed time for executing code in the namespace of the caller.
+
+    The supplied code string is compiled with the Python builtin ``compile``.
+    The precision of the timing is 10 milli-seconds. If the code will execute
+    fast on this timescale, it can be executed many times to get reasonable
+    timing accuracy.
+
+    Parameters
+    ----------
+    code_str : str
+        The code to be timed.
+    times : int, optional
+        The number of times the code is executed. Default is 1. The code is
+        only compiled once.
+    label : str, optional
+        A label to identify `code_str` with. This is passed into ``compile``
+        as the second argument (for run-time error messages).
+
+    Returns
+    -------
+    elapsed : float
+        Total elapsed time in seconds for executing `code_str` `times` times.
+
+    Examples
+    --------
+    >>> times = 10
+    >>> etime = np.testing.measure('for i in range(1000): np.sqrt(i**2)', times=times)
+    >>> print("Time for a single execution : ", etime / times, "s")  # doctest: +SKIP
+    Time for a single execution :  0.005 s
+
+    """
+    frame = sys._getframe(1)
+    locs, globs = frame.f_locals, frame.f_globals
+
+    code = compile(code_str, f'Test name: {label} ', 'exec')
+    i = 0
+    elapsed = jiffies()
+    while i < times:
+        i += 1
+        exec(code, globs, locs)
+    elapsed = jiffies() - elapsed
+    return 0.01 * elapsed
+
+
+def _assert_valid_refcount(op):
+    """
+    Check that ufuncs don't mishandle refcount of object `1`.
+    Used in a few regression tests.
+    """
+    if not HAS_REFCOUNT:
+        return True
+
+    import gc
+
+    import numpy as np
+
+    b = np.arange(100 * 100).reshape(100, 100)
+    c = b
+    i = 1
+
+    gc.disable()
+    try:
+        rc = sys.getrefcount(i)
+        for j in range(15):
+            d = op(b, c)
+        assert_(sys.getrefcount(i) >= rc)
+    finally:
+        gc.enable()
+
+
+def assert_allclose(actual, desired, rtol=1e-7, atol=0, equal_nan=True,
+                    err_msg='', verbose=True, *, strict=False):
+    """
+    Raises an AssertionError if two objects are not equal up to desired
+    tolerance.
+
+    Given two array_like objects, check that their shapes and all elements
+    are equal (but see the Notes for the special handling of a scalar). An
+    exception is raised if the shapes mismatch or any values conflict. In
+    contrast to the standard usage in numpy, NaNs are compared like numbers,
+    no assertion is raised if both objects have NaNs in the same positions.
+
+    The test is equivalent to ``allclose(actual, desired, rtol, atol)``,
+    except that it is stricter: it doesn't broadcast its operands, and has
+    tighter default tolerance values. It compares the difference between
+    `actual` and `desired` to ``atol + rtol * abs(desired)``.
+
+    Parameters
+    ----------
+    actual : array_like
+        Array obtained.
+    desired : array_like
+        Array desired.
+    rtol : float, optional
+        Relative tolerance.
+    atol : float, optional
+        Absolute tolerance.
+    equal_nan : bool, optional.
+        If True, NaNs will compare equal.
+    err_msg : str, optional
+        The error message to be printed in case of failure.
+    verbose : bool, optional
+        If True, the conflicting values are appended to the error message.
+    strict : bool, optional
+        If True, raise an ``AssertionError`` when either the shape or the data
+        type of the arguments does not match. The special handling of scalars
+        mentioned in the Notes section is disabled.
+
+        .. versionadded:: 2.0.0
+
+    Raises
+    ------
+    AssertionError
+        If actual and desired are not equal up to specified precision.
+
+    See Also
+    --------
+    assert_array_almost_equal_nulp, assert_array_max_ulp
+
+    Notes
+    -----
+    When one of `actual` and `desired` is a scalar and the other is array_like, the
+    function performs the comparison as if the scalar were broadcasted to the shape
+    of the array. Note that empty arrays are therefore considered equal to scalars.
+    This behaviour can be disabled by setting ``strict==True``.
+
+    Examples
+    --------
+    >>> x = [1e-5, 1e-3, 1e-1]
+    >>> y = np.arccos(np.cos(x))
+    >>> np.testing.assert_allclose(x, y, rtol=1e-5, atol=0)
+
+    As mentioned in the Notes section, `assert_allclose` has special
+    handling for scalars. Here, the test checks that the value of `numpy.sin`
+    is nearly zero at integer multiples of π.
+
+    >>> x = np.arange(3) * np.pi
+    >>> np.testing.assert_allclose(np.sin(x), 0, atol=1e-15)
+
+    Use `strict` to raise an ``AssertionError`` when comparing an array
+    with one or more dimensions against a scalar.
+
+    >>> np.testing.assert_allclose(np.sin(x), 0, atol=1e-15, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Not equal to tolerance rtol=1e-07, atol=1e-15
+    <BLANKLINE>
+    (shapes (3,), () mismatch)
+     ACTUAL: array([ 0.000000e+00,  1.224647e-16, -2.449294e-16])
+     DESIRED: array(0)
+
+    The `strict` parameter also ensures that the array data types match:
+
+    >>> y = np.zeros(3, dtype=np.float32)
+    >>> np.testing.assert_allclose(np.sin(x), y, atol=1e-15, strict=True)
+    Traceback (most recent call last):
+        ...
+    AssertionError:
+    Not equal to tolerance rtol=1e-07, atol=1e-15
+    <BLANKLINE>
+    (dtypes float64, float32 mismatch)
+     ACTUAL: array([ 0.000000e+00,  1.224647e-16, -2.449294e-16])
+     DESIRED: array([0., 0., 0.], dtype=float32)
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    import numpy as np
+
+    def compare(x, y):
+        return np._core.numeric.isclose(x, y, rtol=rtol, atol=atol,
+                                       equal_nan=equal_nan)
+
+    actual, desired = np.asanyarray(actual), np.asanyarray(desired)
+    header = f'Not equal to tolerance rtol={rtol:g}, atol={atol:g}'
+    assert_array_compare(compare, actual, desired, err_msg=str(err_msg),
+                         verbose=verbose, header=header, equal_nan=equal_nan,
+                         strict=strict)
+
+
+def assert_array_almost_equal_nulp(x, y, nulp=1):
+    """
+    Compare two arrays relatively to their spacing.
+
+    This is a relatively robust method to compare two arrays whose amplitude
+    is variable.
+
+    Parameters
+    ----------
+    x, y : array_like
+        Input arrays.
+    nulp : int, optional
+        The maximum number of unit in the last place for tolerance (see Notes).
+        Default is 1.
+
+    Returns
+    -------
+    None
+
+    Raises
+    ------
+    AssertionError
+        If the spacing between `x` and `y` for one or more elements is larger
+        than `nulp`.
+
+    See Also
+    --------
+    assert_array_max_ulp : Check that all items of arrays differ in at most
+        N Units in the Last Place.
+    spacing : Return the distance between x and the nearest adjacent number.
+
+    Notes
+    -----
+    An assertion is raised if the following condition is not met::
+
+        abs(x - y) <= nulp * spacing(maximum(abs(x), abs(y)))
+
+    Examples
+    --------
+    >>> x = np.array([1., 1e-10, 1e-20])
+    >>> eps = np.finfo(x.dtype).eps
+    >>> np.testing.assert_array_almost_equal_nulp(x, x*eps/2 + x)
+
+    >>> np.testing.assert_array_almost_equal_nulp(x, x*eps + x)
+    Traceback (most recent call last):
+      ...
+    AssertionError: Arrays are not equal to 1 ULP (max is 2)
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    import numpy as np
+    ax = np.abs(x)
+    ay = np.abs(y)
+    ref = nulp * np.spacing(np.where(ax > ay, ax, ay))
+    if not np.all(np.abs(x - y) <= ref):
+        if np.iscomplexobj(x) or np.iscomplexobj(y):
+            msg = f"Arrays are not equal to {nulp} ULP"
+        else:
+            max_nulp = np.max(nulp_diff(x, y))
+            msg = f"Arrays are not equal to {nulp} ULP (max is {max_nulp:g})"
+        raise AssertionError(msg)
+
+
+def assert_array_max_ulp(a, b, maxulp=1, dtype=None):
+    """
+    Check that all items of arrays differ in at most N Units in the Last Place.
+
+    Parameters
+    ----------
+    a, b : array_like
+        Input arrays to be compared.
+    maxulp : int, optional
+        The maximum number of units in the last place that elements of `a` and
+        `b` can differ. Default is 1.
+    dtype : dtype, optional
+        Data-type to convert `a` and `b` to if given. Default is None.
+
+    Returns
+    -------
+    ret : ndarray
+        Array containing number of representable floating point numbers between
+        items in `a` and `b`.
+
+    Raises
+    ------
+    AssertionError
+        If one or more elements differ by more than `maxulp`.
+
+    Notes
+    -----
+    For computing the ULP difference, this API does not differentiate between
+    various representations of NAN (ULP difference between 0x7fc00000 and 0xffc00000
+    is zero).
+
+    See Also
+    --------
+    assert_array_almost_equal_nulp : Compare two arrays relatively to their
+        spacing.
+
+    Examples
+    --------
+    >>> a = np.linspace(0., 1., 100)
+    >>> res = np.testing.assert_array_max_ulp(a, np.arcsin(np.sin(a)))
+
+    """
+    __tracebackhide__ = True  # Hide traceback for py.test
+    import numpy as np
+    ret = nulp_diff(a, b, dtype)
+    if not np.all(ret <= maxulp):
+        raise AssertionError("Arrays are not almost equal up to %g "
+                             "ULP (max difference is %g ULP)" %
+                             (maxulp, np.max(ret)))
+    return ret
+
+
+def nulp_diff(x, y, dtype=None):
+    """For each item in x and y, return the number of representable floating
+    points between them.
+
+    Parameters
+    ----------
+    x : array_like
+        first input array
+    y : array_like
+        second input array
+    dtype : dtype, optional
+        Data-type to convert `x` and `y` to if given. Default is None.
+
+    Returns
+    -------
+    nulp : array_like
+        number of representable floating point numbers between each item in x
+        and y.
+
+    Notes
+    -----
+    For computing the ULP difference, this API does not differentiate between
+    various representations of NAN (ULP difference between 0x7fc00000 and 0xffc00000
+    is zero).
+
+    Examples
+    --------
+    # By definition, epsilon is the smallest number such as 1 + eps != 1, so
+    # there should be exactly one ULP between 1 and 1 + eps
+    >>> nulp_diff(1, 1 + np.finfo(x.dtype).eps)
+    1.0
+    """
+    import numpy as np
+    if dtype:
+        x = np.asarray(x, dtype=dtype)
+        y = np.asarray(y, dtype=dtype)
+    else:
+        x = np.asarray(x)
+        y = np.asarray(y)
+
+    t = np.common_type(x, y)
+    if np.iscomplexobj(x) or np.iscomplexobj(y):
+        raise NotImplementedError("_nulp not implemented for complex array")
+
+    x = np.array([x], dtype=t)
+    y = np.array([y], dtype=t)
+
+    x[np.isnan(x)] = np.nan
+    y[np.isnan(y)] = np.nan
+
+    if not x.shape == y.shape:
+        raise ValueError(f"Arrays do not have the same shape: {x.shape} - {y.shape}")
+
+    def _diff(rx, ry, vdt):
+        diff = np.asarray(rx - ry, dtype=vdt)
+        return np.abs(diff)
+
+    rx = integer_repr(x)
+    ry = integer_repr(y)
+    return _diff(rx, ry, t)
+
+
+def _integer_repr(x, vdt, comp):
+    # Reinterpret binary representation of the float as sign-magnitude:
+    # take into account two-complement representation
+    # See also
+    # https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
+    rx = x.view(vdt)
+    if not (rx.size == 1):
+        rx[rx < 0] = comp - rx[rx < 0]
+    elif rx < 0:
+        rx = comp - rx
+
+    return rx
+
+
+def integer_repr(x):
+    """Return the signed-magnitude interpretation of the binary representation
+    of x."""
+    import numpy as np
+    if x.dtype == np.float16:
+        return _integer_repr(x, np.int16, np.int16(-2**15))
+    elif x.dtype == np.float32:
+        return _integer_repr(x, np.int32, np.int32(-2**31))
+    elif x.dtype == np.float64:
+        return _integer_repr(x, np.int64, np.int64(-2**63))
+    else:
+        raise ValueError(f'Unsupported dtype {x.dtype}')
+
+
+@contextlib.contextmanager
+def _assert_warns_context(warning_class, name=None):
+    __tracebackhide__ = True  # Hide traceback for py.test
+    with suppress_warnings(_warn=False) as sup:
+        l = sup.record(warning_class)
+        yield
+        if not len(l) > 0:
+            name_str = f' when calling {name}' if name is not None else ''
+            raise AssertionError("No warning raised" + name_str)
+
+
+def assert_warns(warning_class, *args, **kwargs):
+    """
+    Fail unless the given callable throws the specified warning.
+
+    A warning of class warning_class should be thrown by the callable when
+    invoked with arguments args and keyword arguments kwargs.
+    If a different type of warning is thrown, it will not be caught.
+
+    If called with all arguments other than the warning class omitted, may be
+    used as a context manager::
+
+        with assert_warns(SomeWarning):
+            do_something()
+
+    The ability to be used as a context manager is new in NumPy v1.11.0.
+
+    .. deprecated:: 2.4
+
+        This is deprecated. Use `warnings.catch_warnings` or
+        ``pytest.warns`` instead.
+
+    Parameters
+    ----------
+    warning_class : class
+        The class defining the warning that `func` is expected to throw.
+    func : callable, optional
+        Callable to test
+    *args : Arguments
+        Arguments for `func`.
+    **kwargs : Kwargs
+        Keyword arguments for `func`.
+
+    Returns
+    -------
+    The value returned by `func`.
+
+    Examples
+    --------
+    >>> import warnings
+    >>> def deprecated_func(num):
+    ...     warnings.warn("Please upgrade", DeprecationWarning)
+    ...     return num*num
+    >>> with np.testing.assert_warns(DeprecationWarning):
+    ...     assert deprecated_func(4) == 16
+    >>> # or passing a func
+    >>> ret = np.testing.assert_warns(DeprecationWarning, deprecated_func, 4)
+    >>> assert ret == 16
+    """
+    warnings.warn(
+        "NumPy warning suppression and assertion utilities are deprecated. "
+        "Use warnings.catch_warnings, warnings.filterwarnings, pytest.warns, "
+        "or pytest.filterwarnings instead. (Deprecated NumPy 2.4)",
+        DeprecationWarning, stacklevel=2)
+    if not args and not kwargs:
+        return _assert_warns_context(warning_class)
+    elif len(args) < 1:
+        if "match" in kwargs:
+            raise RuntimeError(
+                "assert_warns does not use 'match' kwarg, "
+                "use pytest.warns instead"
+                )
+        raise RuntimeError("assert_warns(...) needs at least one arg")
+
+    func = args[0]
+    args = args[1:]
+    with _assert_warns_context(warning_class, name=func.__name__):
+        return func(*args, **kwargs)
+
+
+@contextlib.contextmanager
+def _assert_no_warnings_context(name=None):
+    __tracebackhide__ = True  # Hide traceback for py.test
+    with warnings.catch_warnings(record=True) as l:
+        warnings.simplefilter('always')
+        yield
+        if len(l) > 0:
+            name_str = f' when calling {name}' if name is not None else ''
+            raise AssertionError(f'Got warnings{name_str}: {l}')
+
+
+def assert_no_warnings(*args, **kwargs):
+    """
+    Fail if the given callable produces any warnings.
+
+    If called with all arguments omitted, may be used as a context manager::
+
+        with assert_no_warnings():
+            do_something()
+
+    The ability to be used as a context manager is new in NumPy v1.11.0.
+
+    Parameters
+    ----------
+    func : callable
+        The callable to test.
+    \\*args : Arguments
+        Arguments passed to `func`.
+    \\*\\*kwargs : Kwargs
+        Keyword arguments passed to `func`.
+
+    Returns
+    -------
+    The value returned by `func`.
+
+    """
+    if not args:
+        return _assert_no_warnings_context()
+
+    func = args[0]
+    args = args[1:]
+    with _assert_no_warnings_context(name=func.__name__):
+        return func(*args, **kwargs)
+
+
+def _gen_alignment_data(dtype=float32, type='binary', max_size=24):
+    """
+    generator producing data with different alignment and offsets
+    to test simd vectorization
+
+    Parameters
+    ----------
+    dtype : dtype
+        data type to produce
+    type : string
+        'unary': create data for unary operations, creates one input
+                 and output array
+        'binary': create data for unary operations, creates two input
+                 and output array
+    max_size : integer
+        maximum size of data to produce
+
+    Returns
+    -------
+    if type is 'unary' yields one output, one input array and a message
+    containing information on the data
+    if type is 'binary' yields one output array, two input array and a message
+    containing information on the data
+
+    """
+    ufmt = 'unary offset=(%d, %d), size=%d, dtype=%r, %s'
+    bfmt = 'binary offset=(%d, %d, %d), size=%d, dtype=%r, %s'
+    for o in range(3):
+        for s in range(o + 2, max(o + 3, max_size)):
+            if type == 'unary':
+                inp = lambda: arange(s, dtype=dtype)[o:]
+                out = empty((s,), dtype=dtype)[o:]
+                yield out, inp(), ufmt % (o, o, s, dtype, 'out of place')
+                d = inp()
+                yield d, d, ufmt % (o, o, s, dtype, 'in place')
+                yield out[1:], inp()[:-1], ufmt % \
+                    (o + 1, o, s - 1, dtype, 'out of place')
+                yield out[:-1], inp()[1:], ufmt % \
+                    (o, o + 1, s - 1, dtype, 'out of place')
+                yield inp()[:-1], inp()[1:], ufmt % \
+                    (o, o + 1, s - 1, dtype, 'aliased')
+                yield inp()[1:], inp()[:-1], ufmt % \
+                    (o + 1, o, s - 1, dtype, 'aliased')
+            if type == 'binary':
+                inp1 = lambda: arange(s, dtype=dtype)[o:]
+                inp2 = lambda: arange(s, dtype=dtype)[o:]
+                out = empty((s,), dtype=dtype)[o:]
+                yield out, inp1(), inp2(), bfmt % \
+                    (o, o, o, s, dtype, 'out of place')
+                d = inp1()
+                yield d, d, inp2(), bfmt % \
+                    (o, o, o, s, dtype, 'in place1')
+                d = inp2()
+                yield d, inp1(), d, bfmt % \
+                    (o, o, o, s, dtype, 'in place2')
+                yield out[1:], inp1()[:-1], inp2()[:-1], bfmt % \
+                    (o + 1, o, o, s - 1, dtype, 'out of place')
+                yield out[:-1], inp1()[1:], inp2()[:-1], bfmt % \
+                    (o, o + 1, o, s - 1, dtype, 'out of place')
+                yield out[:-1], inp1()[:-1], inp2()[1:], bfmt % \
+                    (o, o, o + 1, s - 1, dtype, 'out of place')
+                yield inp1()[1:], inp1()[:-1], inp2()[:-1], bfmt % \
+                    (o + 1, o, o, s - 1, dtype, 'aliased')
+                yield inp1()[:-1], inp1()[1:], inp2()[:-1], bfmt % \
+                    (o, o + 1, o, s - 1, dtype, 'aliased')
+                yield inp1()[:-1], inp1()[:-1], inp2()[1:], bfmt % \
+                    (o, o, o + 1, s - 1, dtype, 'aliased')
+
+
+class IgnoreException(Exception):
+    "Ignoring this exception due to disabled feature"
+    pass
+
+
+@contextlib.contextmanager
+def tempdir(*args, **kwargs):
+    """Context manager to provide a temporary test folder.
+
+    All arguments are passed as this to the underlying tempfile.mkdtemp
+    function.
+
+    """
+    tmpdir = mkdtemp(*args, **kwargs)
+    try:
+        yield tmpdir
+    finally:
+        shutil.rmtree(tmpdir)
+
+
+@contextlib.contextmanager
+def temppath(*args, **kwargs):
+    """Context manager for temporary files.
+
+    Context manager that returns the path to a closed temporary file. Its
+    parameters are the same as for tempfile.mkstemp and are passed directly
+    to that function. The underlying file is removed when the context is
+    exited, so it should be closed at that time.
+
+    Windows does not allow a temporary file to be opened if it is already
+    open, so the underlying file must be closed after opening before it
+    can be opened again.
+
+    """
+    fd, path = mkstemp(*args, **kwargs)
+    os.close(fd)
+    try:
+        yield path
+    finally:
+        os.remove(path)
+
+
+class clear_and_catch_warnings(warnings.catch_warnings):
+    """ Context manager that resets warning registry for catching warnings
+
+    Warnings can be slippery, because, whenever a warning is triggered, Python
+    adds a ``__warningregistry__`` member to the *calling* module.  This makes
+    it impossible to retrigger the warning in this module, whatever you put in
+    the warnings filters.  This context manager accepts a sequence of `modules`
+    as a keyword argument to its constructor and:
+
+    * stores and removes any ``__warningregistry__`` entries in given `modules`
+      on entry;
+    * resets ``__warningregistry__`` to its previous state on exit.
+
+    This makes it possible to trigger any warning afresh inside the context
+    manager without disturbing the state of warnings outside.
+
+    For compatibility with Python, please consider all arguments to be
+    keyword-only.
+
+    Parameters
+    ----------
+    record : bool, optional
+        Specifies whether warnings should be captured by a custom
+        implementation of ``warnings.showwarning()`` and be appended to a list
+        returned by the context manager. Otherwise None is returned by the
+        context manager. The objects appended to the list are arguments whose
+        attributes mirror the arguments to ``showwarning()``.
+    modules : sequence, optional
+        Sequence of modules for which to reset warnings registry on entry and
+        restore on exit. To work correctly, all 'ignore' filters should
+        filter by one of these modules.
+
+    Examples
+    --------
+    >>> import warnings
+    >>> with np.testing.clear_and_catch_warnings(
+    ...         modules=[np._core.fromnumeric]):
+    ...     warnings.simplefilter('always')
+    ...     warnings.filterwarnings('ignore', module='np._core.fromnumeric')
+    ...     # do something that raises a warning but ignore those in
+    ...     # np._core.fromnumeric
+    """
+    class_modules = ()
+
+    def __init__(self, record=False, modules=()):
+        self.modules = set(modules).union(self.class_modules)
+        self._warnreg_copies = {}
+        super().__init__(record=record)
+
+    def __enter__(self):
+        for mod in self.modules:
+            if hasattr(mod, '__warningregistry__'):
+                mod_reg = mod.__warningregistry__
+                self._warnreg_copies[mod] = mod_reg.copy()
+                mod_reg.clear()
+        return super().__enter__()
+
+    def __exit__(self, *exc_info):
+        super().__exit__(*exc_info)
+        for mod in self.modules:
+            if hasattr(mod, '__warningregistry__'):
+                mod.__warningregistry__.clear()
+            if mod in self._warnreg_copies:
+                mod.__warningregistry__.update(self._warnreg_copies[mod])
+
+
+class suppress_warnings:
+    """
+    Context manager and decorator doing much the same as
+    ``warnings.catch_warnings``.
+
+    However, it also provides a filter mechanism to work around
+    https://bugs.python.org/issue4180.
+
+    This bug causes Python before 3.4 to not reliably show warnings again
+    after they have been ignored once (even within catch_warnings). It
+    means that no "ignore" filter can be used easily, since following
+    tests might need to see the warning. Additionally it allows easier
+    specificity for testing warnings and can be nested.
+
+    .. deprecated:: 2.4
+
+        This is deprecated. Use `warnings.filterwarnings` or
+        ``pytest.filterwarnings`` instead.
+
+    Parameters
+    ----------
+    forwarding_rule : str, optional
+        One of "always", "once", "module", or "location". Analogous to
+        the usual warnings module filter mode, it is useful to reduce
+        noise mostly on the outmost level. Unsuppressed and unrecorded
+        warnings will be forwarded based on this rule. Defaults to "always".
+        "location" is equivalent to the warnings "default", match by exact
+        location the warning warning originated from.
+
+    Notes
+    -----
+    Filters added inside the context manager will be discarded again
+    when leaving it. Upon entering all filters defined outside a
+    context will be applied automatically.
+
+    When a recording filter is added, matching warnings are stored in the
+    ``log`` attribute as well as in the list returned by ``record``.
+
+    If filters are added and the ``module`` keyword is given, the
+    warning registry of this module will additionally be cleared when
+    applying it, entering the context, or exiting it. This could cause
+    warnings to appear a second time after leaving the context if they
+    were configured to be printed once (default) and were already
+    printed before the context was entered.
+
+    Nesting this context manager will work as expected when the
+    forwarding rule is "always" (default). Unfiltered and unrecorded
+    warnings will be passed out and be matched by the outer level.
+    On the outmost level they will be printed (or caught by another
+    warnings context). The forwarding rule argument can modify this
+    behaviour.
+
+    Like ``catch_warnings`` this context manager is not threadsafe.
+
+    Examples
+    --------
+
+    With a context manager::
+
+        with np.testing.suppress_warnings() as sup:
+            sup.filter(DeprecationWarning, "Some text")
+            sup.filter(module=np.ma.core)
+            log = sup.record(FutureWarning, "Does this occur?")
+            command_giving_warnings()
+            # The FutureWarning was given once, the filtered warnings were
+            # ignored. All other warnings abide outside settings (may be
+            # printed/error)
+            assert_(len(log) == 1)
+            assert_(len(sup.log) == 1)  # also stored in log attribute
+
+    Or as a decorator::
+
+        sup = np.testing.suppress_warnings()
+        sup.filter(module=np.ma.core)  # module must match exactly
+        @sup
+        def some_function():
+            # do something which causes a warning in np.ma.core
+            pass
+    """
+    def __init__(self, forwarding_rule="always", _warn=True):
+        if _warn:
+            warnings.warn(
+                "NumPy warning suppression and assertion utilities are deprecated. "
+                "Use warnings.catch_warnings, warnings.filterwarnings, pytest.warns, "
+                "or pytest.filterwarnings instead. (Deprecated NumPy 2.4)",
+                DeprecationWarning, stacklevel=2)
+        self._entered = False
+
+        # Suppressions are either instance or defined inside one with block:
+        self._suppressions = []
+
+        if forwarding_rule not in {"always", "module", "once", "location"}:
+            raise ValueError("unsupported forwarding rule.")
+        self._forwarding_rule = forwarding_rule
+
+    def _clear_registries(self):
+        if hasattr(warnings, "_filters_mutated"):
+            # clearing the registry should not be necessary on new pythons,
+            # instead the filters should be mutated.
+            warnings._filters_mutated()
+            return
+        # Simply clear the registry, this should normally be harmless,
+        # note that on new pythons it would be invalidated anyway.
+        for module in self._tmp_modules:
+            if hasattr(module, "__warningregistry__"):
+                module.__warningregistry__.clear()
+
+    def _filter(self, category=Warning, message="", module=None, record=False):
+        if record:
+            record = []  # The log where to store warnings
+        else:
+            record = None
+        if self._entered:
+            if module is None:
+                warnings.filterwarnings(
+                    "always", category=category, message=message)
+            else:
+                module_regex = module.__name__.replace('.', r'\.') + '$'
+                warnings.filterwarnings(
+                    "always", category=category, message=message,
+                    module=module_regex)
+                self._tmp_modules.add(module)
+                self._clear_registries()
+
+            self._tmp_suppressions.append(
+                (category, message, re.compile(message, re.I), module, record))
+        else:
+            self._suppressions.append(
+                (category, message, re.compile(message, re.I), module, record))
+
+        return record
+
+    def filter(self, category=Warning, message="", module=None):
+        """
+        Add a new suppressing filter or apply it if the state is entered.
+
+        Parameters
+        ----------
+        category : class, optional
+            Warning class to filter
+        message : string, optional
+            Regular expression matching the warning message.
+        module : module, optional
+            Module to filter for. Note that the module (and its file)
+            must match exactly and cannot be a submodule. This may make
+            it unreliable for external modules.
+
+        Notes
+        -----
+        When added within a context, filters are only added inside
+        the context and will be forgotten when the context is exited.
+        """
+        self._filter(category=category, message=message, module=module,
+                     record=False)
+
+    def record(self, category=Warning, message="", module=None):
+        """
+        Append a new recording filter or apply it if the state is entered.
+
+        All warnings matching will be appended to the ``log`` attribute.
+
+        Parameters
+        ----------
+        category : class, optional
+            Warning class to filter
+        message : string, optional
+            Regular expression matching the warning message.
+        module : module, optional
+            Module to filter for. Note that the module (and its file)
+            must match exactly and cannot be a submodule. This may make
+            it unreliable for external modules.
+
+        Returns
+        -------
+        log : list
+            A list which will be filled with all matched warnings.
+
+        Notes
+        -----
+        When added within a context, filters are only added inside
+        the context and will be forgotten when the context is exited.
+        """
+        return self._filter(category=category, message=message, module=module,
+                            record=True)
+
+    def __enter__(self):
+        if self._entered:
+            raise RuntimeError("cannot enter suppress_warnings twice.")
+
+        self._orig_show = warnings.showwarning
+        self._filters = warnings.filters
+        warnings.filters = self._filters[:]
+
+        self._entered = True
+        self._tmp_suppressions = []
+        self._tmp_modules = set()
+        self._forwarded = set()
+
+        self.log = []  # reset global log (no need to keep same list)
+
+        for cat, mess, _, mod, log in self._suppressions:
+            if log is not None:
+                del log[:]  # clear the log
+            if mod is None:
+                warnings.filterwarnings(
+                    "always", category=cat, message=mess)
+            else:
+                module_regex = mod.__name__.replace('.', r'\.') + '$'
+                warnings.filterwarnings(
+                    "always", category=cat, message=mess,
+                    module=module_regex)
+                self._tmp_modules.add(mod)
+        warnings.showwarning = self._showwarning
+        self._clear_registries()
+
+        return self
+
+    def __exit__(self, *exc_info):
+        warnings.showwarning = self._orig_show
+        warnings.filters = self._filters
+        self._clear_registries()
+        self._entered = False
+        del self._orig_show
+        del self._filters
+
+    def _showwarning(self, message, category, filename, lineno,
+                     *args, use_warnmsg=None, **kwargs):
+        for cat, _, pattern, mod, rec in (
+                self._suppressions + self._tmp_suppressions)[::-1]:
+            if (issubclass(category, cat) and
+                    pattern.match(message.args[0]) is not None):
+                if mod is None:
+                    # Message and category match, either recorded or ignored
+                    if rec is not None:
+                        msg = WarningMessage(message, category, filename,
+                                             lineno, **kwargs)
+                        self.log.append(msg)
+                        rec.append(msg)
+                    return
+                # Use startswith, because warnings strips the c or o from
+                # .pyc/.pyo files.
+                elif mod.__file__.startswith(filename):
+                    # The message and module (filename) match
+                    if rec is not None:
+                        msg = WarningMessage(message, category, filename,
+                                             lineno, **kwargs)
+                        self.log.append(msg)
+                        rec.append(msg)
+                    return
+
+        # There is no filter in place, so pass to the outside handler
+        # unless we should only pass it once
+        if self._forwarding_rule == "always":
+            if use_warnmsg is None:
+                self._orig_show(message, category, filename, lineno,
+                                *args, **kwargs)
+            else:
+                self._orig_showmsg(use_warnmsg)
+            return
+
+        if self._forwarding_rule == "once":
+            signature = (message.args, category)
+        elif self._forwarding_rule == "module":
+            signature = (message.args, category, filename)
+        elif self._forwarding_rule == "location":
+            signature = (message.args, category, filename, lineno)
+
+        if signature in self._forwarded:
+            return
+        self._forwarded.add(signature)
+        if use_warnmsg is None:
+            self._orig_show(message, category, filename, lineno, *args,
+                            **kwargs)
+        else:
+            self._orig_showmsg(use_warnmsg)
+
+    def __call__(self, func):
+        """
+        Function decorator to apply certain suppressions to a whole
+        function.
+        """
+        @wraps(func)
+        def new_func(*args, **kwargs):
+            with self:
+                return func(*args, **kwargs)
+
+        return new_func
+
+
+@contextlib.contextmanager
+def _assert_no_gc_cycles_context(name=None):
+    __tracebackhide__ = True  # Hide traceback for py.test
+
+    # not meaningful to test if there is no refcounting
+    if not HAS_REFCOUNT:
+        yield
+        return
+
+    assert_(gc.isenabled())
+    gc.disable()
+    gc_debug = gc.get_debug()
+    try:
+        for i in range(100):
+            if gc.collect() == 0:
+                break
+        else:
+            raise RuntimeError(
+                "Unable to fully collect garbage - perhaps a __del__ method "
+                "is creating more reference cycles?")
+
+        gc.set_debug(gc.DEBUG_SAVEALL)
+        yield
+        # gc.collect returns the number of unreachable objects in cycles that
+        # were found -- we are checking that no cycles were created in the context
+        n_objects_in_cycles = gc.collect()
+        objects_in_cycles = gc.garbage[:]
+    finally:
+        del gc.garbage[:]
+        gc.set_debug(gc_debug)
+        gc.enable()
+
+    if n_objects_in_cycles:
+        name_str = f' when calling {name}' if name is not None else ''
+        raise AssertionError(
+            "Reference cycles were found{}: {} objects were collected, "
+            "of which {} are shown below:{}"
+            .format(
+                name_str,
+                n_objects_in_cycles,
+                len(objects_in_cycles),
+                ''.join(
+                    "\n  {} object with id={}:\n    {}".format(
+                        type(o).__name__,
+                        id(o),
+                        pprint.pformat(o).replace('\n', '\n    ')
+                    ) for o in objects_in_cycles
+                )
+            )
+        )
+
+
+def assert_no_gc_cycles(*args, **kwargs):
+    """
+    Fail if the given callable produces any reference cycles.
+
+    If called with all arguments omitted, may be used as a context manager::
+
+        with assert_no_gc_cycles():
+            do_something()
+
+    Parameters
+    ----------
+    func : callable
+        The callable to test.
+    \\*args : Arguments
+        Arguments passed to `func`.
+    \\*\\*kwargs : Kwargs
+        Keyword arguments passed to `func`.
+
+    Returns
+    -------
+    Nothing. The result is deliberately discarded to ensure that all cycles
+    are found.
+
+    """
+    if not args:
+        return _assert_no_gc_cycles_context()
+
+    func = args[0]
+    args = args[1:]
+    with _assert_no_gc_cycles_context(name=func.__name__):
+        func(*args, **kwargs)
+
+
+def break_cycles():
+    """
+    Break reference cycles by calling gc.collect
+    Objects can call other objects' methods (for instance, another object's
+     __del__) inside their own __del__. On PyPy, the interpreter only runs
+    between calls to gc.collect, so multiple calls are needed to completely
+    release all cycles.
+    """
+
+    gc.collect()
+    if IS_PYPY:
+        # a few more, just to make sure all the finalizers are called
+        gc.collect()
+        gc.collect()
+        gc.collect()
+        gc.collect()
+
+
+def requires_memory(free_bytes):
+    """Decorator to skip a test if not enough memory is available"""
+    import pytest
+
+    def decorator(func):
+        @wraps(func)
+        def wrapper(*a, **kw):
+            msg = check_free_memory(free_bytes)
+            if msg is not None:
+                pytest.skip(msg)
+
+            try:
+                return func(*a, **kw)
+            except MemoryError:
+                # Probably ran out of memory regardless: don't regard as failure
+                pytest.xfail("MemoryError raised")
+
+        return wrapper
+
+    return decorator
+
+
+def check_free_memory(free_bytes):
+    """
+    Check whether `free_bytes` amount of memory is currently free.
+    Returns: None if enough memory available, otherwise error message
+    """
+    env_var = 'NPY_AVAILABLE_MEM'
+    env_value = os.environ.get(env_var)
+    if env_value is not None:
+        try:
+            mem_free = _parse_size(env_value)
+        except ValueError as exc:
+            raise ValueError(f'Invalid environment variable {env_var}: {exc}')
+
+        msg = (f'{free_bytes / 1e9} GB memory required, but environment variable '
+               f'NPY_AVAILABLE_MEM={env_value} set')
+    else:
+        mem_free = _get_mem_available()
+
+        if mem_free is None:
+            msg = ("Could not determine available memory; set NPY_AVAILABLE_MEM "
+                   "environment variable (e.g. NPY_AVAILABLE_MEM=16GB) to run "
+                   "the test.")
+            mem_free = -1
+        else:
+            free_bytes_gb = free_bytes / 1e9
+            mem_free_gb = mem_free / 1e9
+            msg = f'{free_bytes_gb} GB memory required, but {mem_free_gb} GB available'
+
+    return msg if mem_free < free_bytes else None
+
+
+def _parse_size(size_str):
+    """Convert memory size strings ('12 GB' etc.) to float"""
+    suffixes = {'': 1, 'b': 1,
+                'k': 1000, 'm': 1000**2, 'g': 1000**3, 't': 1000**4,
+                'kb': 1000, 'mb': 1000**2, 'gb': 1000**3, 'tb': 1000**4,
+                'kib': 1024, 'mib': 1024**2, 'gib': 1024**3, 'tib': 1024**4}
+
+    pipe_suffixes = "|".join(suffixes.keys())
+
+    size_re = re.compile(fr'^\s*(\d+|\d+\.\d+)\s*({pipe_suffixes})\s*$', re.I)
+
+    m = size_re.match(size_str.lower())
+    if not m or m.group(2) not in suffixes:
+        raise ValueError(f'value {size_str!r} not a valid size')
+    return int(float(m.group(1)) * suffixes[m.group(2)])
+
+
+def _get_mem_available():
+    """Return available memory in bytes, or None if unknown."""
+    try:
+        import psutil
+        return psutil.virtual_memory().available
+    except (ImportError, AttributeError):
+        pass
+
+    if sys.platform.startswith('linux'):
+        info = {}
+        with open('/proc/meminfo') as f:
+            for line in f:
+                p = line.split()
+                info[p[0].strip(':').lower()] = int(p[1]) * 1024
+
+        if 'memavailable' in info:
+            # Linux >= 3.14
+            return info['memavailable']
+        else:
+            return info['memfree'] + info['cached']
+
+    return None
+
+
+def _no_tracing(func):
+    """
+    Decorator to temporarily turn off tracing for the duration of a test.
+    Needed in tests that check refcounting, otherwise the tracing itself
+    influences the refcounts
+    """
+    if not hasattr(sys, 'gettrace'):
+        return func
+    else:
+        @wraps(func)
+        def wrapper(*args, **kwargs):
+            original_trace = sys.gettrace()
+            try:
+                sys.settrace(None)
+                return func(*args, **kwargs)
+            finally:
+                sys.settrace(original_trace)
+        return wrapper
+
+
+def _get_glibc_version():
+    try:
+        ver = os.confstr('CS_GNU_LIBC_VERSION').rsplit(' ')[1]
+    except Exception:
+        ver = '0.0'
+
+    return ver
+
+
+_glibcver = _get_glibc_version()
+_glibc_older_than = lambda x: (_glibcver != '0.0' and _glibcver < x)
+
+
+def run_threaded(func, max_workers=8, pass_count=False,
+                 pass_barrier=False, outer_iterations=1,
+                 prepare_args=None):
+    """Runs a function many times in parallel"""
+    for _ in range(outer_iterations):
+        with (concurrent.futures.ThreadPoolExecutor(max_workers=max_workers)
+              as tpe):
+            if prepare_args is None:
+                args = []
+            else:
+                args = prepare_args()
+            if pass_barrier:
+                barrier = threading.Barrier(max_workers)
+                args.append(barrier)
+            if pass_count:
+                all_args = [(func, i, *args) for i in range(max_workers)]
+            else:
+                all_args = [(func, *args) for i in range(max_workers)]
+            try:
+                futures = []
+                for arg in all_args:
+                    futures.append(tpe.submit(*arg))
+            except RuntimeError as e:
+                import pytest
+                pytest.skip(f"Spawning {max_workers} threads failed with "
+                            f"error {e!r} (likely due to resource limits on the "
+                            "system running the tests)")
+            finally:
+                if len(futures) < max_workers and pass_barrier:
+                    barrier.abort()
+            for f in futures:
+                f.result()
diff --git a/python/user_packages/Python313/site-packages/numpy/testing/_private/utils.pyi b/python/user_packages/Python313/site-packages/numpy/testing/_private/utils.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..16daa4dae9de7934ca1234d1020e60932ecf3348
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/testing/_private/utils.pyi
@@ -0,0 +1,505 @@
+import ast
+import sys
+import types
+import unittest
+import warnings
+from _typeshed import ConvertibleToFloat, GenericPath, StrOrBytesPath, StrPath
+from collections.abc import Callable, Iterable, Sequence
+from contextlib import _GeneratorContextManager
+from pathlib import Path
+from re import Pattern
+from typing import (
+    Any,
+    AnyStr,
+    ClassVar,
+    Final,
+    Generic,
+    Literal as L,
+    NoReturn,
+    ParamSpec,
+    Self,
+    SupportsIndex,
+    TypeAlias,
+    TypeVarTuple,
+    overload,
+    type_check_only,
+)
+from typing_extensions import TypeVar, deprecated
+from unittest.case import SkipTest
+
+import numpy as np
+from numpy._typing import (
+    ArrayLike,
+    DTypeLike,
+    NDArray,
+    _ArrayLikeDT64_co,
+    _ArrayLikeNumber_co,
+    _ArrayLikeObject_co,
+    _ArrayLikeTD64_co,
+)
+
+__all__ = [  # noqa: RUF022
+    "IS_EDITABLE",
+    "IS_MUSL",
+    "IS_PYPY",
+    "IS_PYSTON",
+    "IS_WASM",
+    "IS_INSTALLED",
+    "IS_64BIT",
+    "HAS_LAPACK64",
+    "HAS_REFCOUNT",
+    "BLAS_SUPPORTS_FPE",
+    "NOGIL_BUILD",
+    "NUMPY_ROOT",
+    "assert_",
+    "assert_array_almost_equal_nulp",
+    "assert_raises_regex",
+    "assert_array_max_ulp",
+    "assert_warns",
+    "assert_no_warnings",
+    "assert_allclose",
+    "assert_equal",
+    "assert_almost_equal",
+    "assert_approx_equal",
+    "assert_array_equal",
+    "assert_array_less",
+    "assert_string_equal",
+    "assert_array_almost_equal",
+    "assert_raises",
+    "build_err_msg",
+    "decorate_methods",
+    "jiffies",
+    "memusage",
+    "print_assert_equal",
+    "rundocs",
+    "runstring",
+    "verbose",
+    "measure",
+    "IgnoreException",
+    "clear_and_catch_warnings",
+    "SkipTest",
+    "KnownFailureException",
+    "temppath",
+    "tempdir",
+    "suppress_warnings",
+    "assert_array_compare",
+    "assert_no_gc_cycles",
+    "break_cycles",
+    "check_support_sve",
+    "run_threaded",
+]
+
+###
+
+_T = TypeVar("_T")
+_Ts = TypeVarTuple("_Ts")
+_Tss = ParamSpec("_Tss")
+_ET = TypeVar("_ET", bound=BaseException, default=BaseException)
+_FT = TypeVar("_FT", bound=Callable[..., Any])
+_W_co = TypeVar("_W_co", bound=_WarnLog | None, default=_WarnLog | None, covariant=True)
+
+_StrLike: TypeAlias = str | bytes
+_RegexLike: TypeAlias = _StrLike | Pattern[Any]
+_NumericArrayLike: TypeAlias = _ArrayLikeNumber_co | _ArrayLikeObject_co
+
+_ExceptionSpec: TypeAlias = type[_ET] | tuple[type[_ET], ...]
+_WarningSpec: TypeAlias = type[Warning]
+_WarnLog: TypeAlias = list[warnings.WarningMessage]
+_ToModules: TypeAlias = Iterable[types.ModuleType]
+
+# Must return a bool or an ndarray/generic type that is supported by `np.logical_and.reduce`
+_ComparisonFunc: TypeAlias = Callable[
+    [NDArray[Any], NDArray[Any]],
+    bool | np.bool | np.number | NDArray[np.bool | np.number | np.object_],
+]
+
+# Type-check only `clear_and_catch_warnings` subclasses for both values of the
+# `record` parameter. Copied from the stdlib `warnings` stubs.
+@type_check_only
+class _clear_and_catch_warnings_with_records(clear_and_catch_warnings):
+    def __enter__(self) -> list[warnings.WarningMessage]: ...
+
+@type_check_only
+class _clear_and_catch_warnings_without_records(clear_and_catch_warnings):
+    def __enter__(self) -> None: ...
+
+###
+
+verbose: int = 0
+NUMPY_ROOT: Final[Path] = ...
+IS_INSTALLED: Final[bool] = ...
+IS_EDITABLE: Final[bool] = ...
+IS_MUSL: Final[bool] = ...
+IS_PYPY: Final[bool] = ...
+IS_PYSTON: Final[bool] = ...
+IS_WASM: Final[bool] = ...
+IS_64BIT: Final[bool] = ...
+HAS_REFCOUNT: Final[bool] = ...
+HAS_LAPACK64: Final[bool] = ...
+BLAS_SUPPORTS_FPE: Final[bool] = ...
+NOGIL_BUILD: Final[bool] = ...
+
+class KnownFailureException(Exception): ...
+class IgnoreException(Exception): ...
+
+class clear_and_catch_warnings(warnings.catch_warnings[_W_co], Generic[_W_co]):
+    class_modules: ClassVar[tuple[types.ModuleType, ...]] = ()
+    modules: Final[set[types.ModuleType]]
+    @overload  # record: True
+    def __init__(self: clear_and_catch_warnings[_WarnLog], /, record: L[True], modules: _ToModules = ()) -> None: ...
+    @overload  # record: False (default)
+    def __init__(self: clear_and_catch_warnings[None], /, record: L[False] = False, modules: _ToModules = ()) -> None: ...
+    @overload  # record; bool
+    def __init__(self, /, record: bool, modules: _ToModules = ()) -> None: ...
+
+@deprecated("Please use warnings.filterwarnings or pytest.mark.filterwarnings instead")
+class suppress_warnings:
+    log: Final[_WarnLog]
+    def __init__(self, /, forwarding_rule: L["always", "module", "once", "location"] = "always") -> None: ...
+    def __enter__(self) -> Self: ...
+    def __exit__(self, cls: type[BaseException] | None, exc: BaseException | None, tb: types.TracebackType | None, /) -> None: ...
+    def __call__(self, /, func: _FT) -> _FT: ...
+
+    #
+    def filter(self, /, category: type[Warning] = ..., message: str = "", module: types.ModuleType | None = None) -> None: ...
+    def record(self, /, category: type[Warning] = ..., message: str = "", module: types.ModuleType | None = None) -> _WarnLog: ...
+
+# Contrary to runtime we can't do `os.name` checks while type checking,
+# only `sys.platform` checks
+if sys.platform == "win32" or sys.platform == "cygwin":
+    def memusage(processName: str = "python", instance: int = 0) -> int: ...
+elif sys.platform == "linux":
+    def memusage(_proc_pid_stat: StrOrBytesPath | None = None) -> int | None: ...
+else:
+    def memusage() -> NoReturn: ...
+
+if sys.platform == "linux":
+    def jiffies(_proc_pid_stat: StrOrBytesPath | None = None, _load_time: list[float] | None = None) -> int: ...
+else:
+    def jiffies(_load_time: list[float] = []) -> int: ...
+
+#
+def build_err_msg(
+    arrays: Iterable[object],
+    err_msg: object,
+    header: str = "Items are not equal:",
+    verbose: bool = True,
+    names: Sequence[str] = ("ACTUAL", "DESIRED"),  # = ('ACTUAL', 'DESIRED')
+    precision: SupportsIndex | None = 8,
+) -> str: ...
+
+#
+def print_assert_equal(test_string: str, actual: object, desired: object) -> None: ...
+
+#
+def assert_(val: object, msg: str | Callable[[], str] = "") -> None: ...
+
+#
+def assert_equal(
+    actual: object,
+    desired: object,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+
+def assert_almost_equal(
+    actual: _NumericArrayLike,
+    desired: _NumericArrayLike,
+    decimal: int = 7,
+    err_msg: object = "",
+    verbose: bool = True,
+) -> None: ...
+
+#
+def assert_approx_equal(
+    actual: ConvertibleToFloat,
+    desired: ConvertibleToFloat,
+    significant: int = 7,
+    err_msg: object = "",
+    verbose: bool = True,
+) -> None: ...
+
+#
+def assert_array_compare(
+    comparison: _ComparisonFunc,
+    x: ArrayLike,
+    y: ArrayLike,
+    err_msg: object = "",
+    verbose: bool = True,
+    header: str = "",
+    precision: SupportsIndex = 6,
+    equal_nan: bool = True,
+    equal_inf: bool = True,
+    *,
+    strict: bool = False,
+    names: tuple[str, str] = ("ACTUAL", "DESIRED"),
+) -> None: ...
+
+#
+def assert_array_equal(
+    actual: object,
+    desired: object,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+
+#
+def assert_array_almost_equal(
+    actual: _NumericArrayLike,
+    desired: _NumericArrayLike,
+    decimal: float = 6,
+    err_msg: object = "",
+    verbose: bool = True,
+) -> None: ...
+
+@overload
+def assert_array_less(
+    x: _ArrayLikeDT64_co,
+    y: _ArrayLikeDT64_co,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+@overload
+def assert_array_less(
+    x: _ArrayLikeTD64_co,
+    y: _ArrayLikeTD64_co,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+@overload
+def assert_array_less(
+    x: _NumericArrayLike,
+    y: _NumericArrayLike,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+
+#
+def assert_string_equal(actual: str, desired: str) -> None: ...
+
+#
+@overload
+def assert_raises(
+    exception_class: _ExceptionSpec[_ET],
+    /,
+    *,
+    msg: str | None = None,
+) -> unittest.case._AssertRaisesContext[_ET]: ...
+@overload
+def assert_raises(
+    exception_class: _ExceptionSpec,
+    callable: Callable[_Tss, Any],
+    /,
+    *args: _Tss.args,
+    **kwargs: _Tss.kwargs,
+) -> None: ...
+
+#
+@overload
+def assert_raises_regex(
+    exception_class: _ExceptionSpec[_ET],
+    expected_regexp: _RegexLike,
+    *,
+    msg: str | None = None,
+) -> unittest.case._AssertRaisesContext[_ET]: ...
+@overload
+def assert_raises_regex(
+    exception_class: _ExceptionSpec,
+    expected_regexp: _RegexLike,
+    callable: Callable[_Tss, Any],
+    *args: _Tss.args,
+    **kwargs: _Tss.kwargs,
+) -> None: ...
+
+#
+@overload
+def assert_allclose(
+    actual: _ArrayLikeTD64_co,
+    desired: _ArrayLikeTD64_co,
+    rtol: float = 1e-7,
+    atol: float = 0,
+    equal_nan: bool = True,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+@overload
+def assert_allclose(
+    actual: _NumericArrayLike,
+    desired: _NumericArrayLike,
+    rtol: float = 1e-7,
+    atol: float = 0,
+    equal_nan: bool = True,
+    err_msg: object = "",
+    verbose: bool = True,
+    *,
+    strict: bool = False,
+) -> None: ...
+
+#
+def assert_array_almost_equal_nulp(
+    x: _ArrayLikeNumber_co,
+    y: _ArrayLikeNumber_co,
+    nulp: float = 1,
+) -> None: ...
+
+#
+def assert_array_max_ulp(
+    a: _ArrayLikeNumber_co,
+    b: _ArrayLikeNumber_co,
+    maxulp: float = 1,
+    dtype: DTypeLike | None = None,
+) -> NDArray[Any]: ...
+
+#
+@overload
+@deprecated("Please use warnings.catch_warnings or pytest.warns instead")
+def assert_warns(warning_class: _WarningSpec) -> _GeneratorContextManager[None]: ...
+@overload
+@deprecated("Please use warnings.catch_warnings or pytest.warns instead")
+def assert_warns(warning_class: _WarningSpec, func: Callable[_Tss, _T], *args: _Tss.args, **kwargs: _Tss.kwargs) -> _T: ...
+
+#
+@overload
+def assert_no_warnings() -> _GeneratorContextManager[None]: ...
+@overload
+def assert_no_warnings(func: Callable[_Tss, _T], /, *args: _Tss.args, **kwargs: _Tss.kwargs) -> _T: ...
+
+#
+@overload
+def assert_no_gc_cycles() -> _GeneratorContextManager[None]: ...
+@overload
+def assert_no_gc_cycles(func: Callable[_Tss, Any], /, *args: _Tss.args, **kwargs: _Tss.kwargs) -> None: ...
+
+###
+
+#
+@overload
+def tempdir(
+    suffix: None = None,
+    prefix: None = None,
+    dir: None = None,
+) -> _GeneratorContextManager[str]: ...
+@overload
+def tempdir(
+    suffix: AnyStr | None = None,
+    prefix: AnyStr | None = None,
+    *,
+    dir: GenericPath[AnyStr],
+) -> _GeneratorContextManager[AnyStr]: ...
+@overload
+def tempdir(
+    suffix: AnyStr | None = None,
+    *,
+    prefix: AnyStr,
+    dir: GenericPath[AnyStr] | None = None,
+) -> _GeneratorContextManager[AnyStr]: ...
+@overload
+def tempdir(
+    suffix: AnyStr,
+    prefix: AnyStr | None = None,
+    dir: GenericPath[AnyStr] | None = None,
+) -> _GeneratorContextManager[AnyStr]: ...
+
+#
+@overload
+def temppath(
+    suffix: None = None,
+    prefix: None = None,
+    dir: None = None,
+    text: bool = False,
+) -> _GeneratorContextManager[str]: ...
+@overload
+def temppath(
+    suffix: AnyStr | None,
+    prefix: AnyStr | None,
+    dir: GenericPath[AnyStr],
+    text: bool = False,
+) -> _GeneratorContextManager[AnyStr]: ...
+@overload
+def temppath(
+    suffix: AnyStr | None = None,
+    prefix: AnyStr | None = None,
+    *,
+    dir: GenericPath[AnyStr],
+    text: bool = False,
+) -> _GeneratorContextManager[AnyStr]: ...
+@overload
+def temppath(
+    suffix: AnyStr | None,
+    prefix: AnyStr,
+    dir: GenericPath[AnyStr] | None = None,
+    text: bool = False,
+) -> _GeneratorContextManager[AnyStr]: ...
+@overload
+def temppath(
+    suffix: AnyStr | None = None,
+    *,
+    prefix: AnyStr,
+    dir: GenericPath[AnyStr] | None = None,
+    text: bool = False,
+) -> _GeneratorContextManager[AnyStr]: ...
+@overload
+def temppath(
+    suffix: AnyStr,
+    prefix: AnyStr | None = None,
+    dir: GenericPath[AnyStr] | None = None,
+    text: bool = False,
+) -> _GeneratorContextManager[AnyStr]: ...
+
+#
+def check_support_sve(__cache: list[bool] = ..., /) -> bool: ...  # stubdefaulter: ignore[missing-default]
+
+#
+def decorate_methods(
+    cls: type,
+    decorator: Callable[[Callable[..., Any]], Any],
+    testmatch: _RegexLike | None = None,
+) -> None: ...
+
+#
+@overload
+def run_threaded(
+    func: Callable[[], None],
+    max_workers: int = 8,
+    pass_count: bool = False,
+    pass_barrier: bool = False,
+    outer_iterations: int = 1,
+    prepare_args: None = None,
+) -> None: ...
+@overload
+def run_threaded(
+    func: Callable[[*_Ts], None],
+    max_workers: int,
+    pass_count: bool,
+    pass_barrier: bool,
+    outer_iterations: int,
+    prepare_args: tuple[*_Ts],
+) -> None: ...
+@overload
+def run_threaded(
+    func: Callable[[*_Ts], None],
+    max_workers: int = 8,
+    pass_count: bool = False,
+    pass_barrier: bool = False,
+    outer_iterations: int = 1,
+    *,
+    prepare_args: tuple[*_Ts],
+) -> None: ...
+
+#
+def runstring(astr: _StrLike | types.CodeType, dict: dict[str, Any] | None) -> Any: ...  # noqa: ANN401
+def rundocs(filename: StrPath | None = None, raise_on_error: bool = True) -> None: ...
+def measure(code_str: _StrLike | ast.AST, times: int = 1, label: str | None = None) -> float: ...
+def break_cycles() -> None: ...
diff --git a/python/user_packages/Python313/site-packages/numpy/testing/tests/__init__.py b/python/user_packages/Python313/site-packages/numpy/testing/tests/__init__.py
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/python/user_packages/Python313/site-packages/numpy/testing/tests/__pycache__/__init__.cpython-313.pyc b/python/user_packages/Python313/site-packages/numpy/testing/tests/__pycache__/__init__.cpython-313.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..c6ca22b38dff9b5d51705ad1db0a797525de78bb
Binary files /dev/null and b/python/user_packages/Python313/site-packages/numpy/testing/tests/__pycache__/__init__.cpython-313.pyc differ
diff --git a/python/user_packages/Python313/site-packages/numpy/testing/tests/test_utils.py b/python/user_packages/Python313/site-packages/numpy/testing/tests/test_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..0d95d3172ad36e3438dbb62601b882c9e1af39e7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/testing/tests/test_utils.py
@@ -0,0 +1,2123 @@
+import itertools
+import os
+import re
+import sys
+import warnings
+import weakref
+
+import pytest
+
+import numpy as np
+import numpy._core._multiarray_umath as ncu
+from numpy.testing import (
+    HAS_REFCOUNT,
+    assert_,
+    assert_allclose,
+    assert_almost_equal,
+    assert_approx_equal,
+    assert_array_almost_equal,
+    assert_array_almost_equal_nulp,
+    assert_array_equal,
+    assert_array_less,
+    assert_array_max_ulp,
+    assert_equal,
+    assert_no_gc_cycles,
+    assert_no_warnings,
+    assert_raises,
+    assert_string_equal,
+    assert_warns,
+    build_err_msg,
+    clear_and_catch_warnings,
+    suppress_warnings,
+    tempdir,
+    temppath,
+)
+
+
+class _GenericTest:
+
+    def _assert_func(self, *args, **kwargs):
+        pass
+
+    def _test_equal(self, a, b):
+        self._assert_func(a, b)
+
+    def _test_not_equal(self, a, b):
+        with assert_raises(AssertionError):
+            self._assert_func(a, b)
+
+    def test_array_rank1_eq(self):
+        """Test two equal array of rank 1 are found equal."""
+        a = np.array([1, 2])
+        b = np.array([1, 2])
+
+        self._test_equal(a, b)
+
+    def test_array_rank1_noteq(self):
+        """Test two different array of rank 1 are found not equal."""
+        a = np.array([1, 2])
+        b = np.array([2, 2])
+
+        self._test_not_equal(a, b)
+
+    def test_array_rank2_eq(self):
+        """Test two equal array of rank 2 are found equal."""
+        a = np.array([[1, 2], [3, 4]])
+        b = np.array([[1, 2], [3, 4]])
+
+        self._test_equal(a, b)
+
+    def test_array_diffshape(self):
+        """Test two arrays with different shapes are found not equal."""
+        a = np.array([1, 2])
+        b = np.array([[1, 2], [1, 2]])
+
+        self._test_not_equal(a, b)
+
+    def test_objarray(self):
+        """Test object arrays."""
+        a = np.array([1, 1], dtype=object)
+        self._test_equal(a, 1)
+
+    def test_array_likes(self):
+        self._test_equal([1, 2, 3], (1, 2, 3))
+
+
+class TestArrayEqual(_GenericTest):
+
+    def _assert_func(self, *args, **kwargs):
+        assert_array_equal(*args, **kwargs)
+
+    def test_generic_rank1(self):
+        """Test rank 1 array for all dtypes."""
+        def foo(t):
+            a = np.empty(2, t)
+            a.fill(1)
+            b = a.copy()
+            c = a.copy()
+            c.fill(0)
+            self._test_equal(a, b)
+            self._test_not_equal(c, b)
+
+        # Test numeric types and object
+        for t in '?bhilqpBHILQPfdgFDG':
+            foo(t)
+
+        # Test strings
+        for t in ['S1', 'U1']:
+            foo(t)
+
+    def test_0_ndim_array(self):
+        x = np.array(473963742225900817127911193656584771)
+        y = np.array(18535119325151578301457182298393896)
+
+        with pytest.raises(AssertionError) as exc_info:
+            self._assert_func(x, y)
+        msg = str(exc_info.value)
+        assert_('Mismatched elements: 1 / 1 (100%)\n'
+                in msg)
+
+        y = x
+        self._assert_func(x, y)
+
+        x = np.array(4395065348745.5643764887869876)
+        y = np.array(0)
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Max absolute difference among violations: '
+                        '4.39506535e+12\n'
+                        'Max relative difference among violations: inf\n')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        x = y
+        self._assert_func(x, y)
+
+    def test_generic_rank3(self):
+        """Test rank 3 array for all dtypes."""
+        def foo(t):
+            a = np.empty((4, 2, 3), t)
+            a.fill(1)
+            b = a.copy()
+            c = a.copy()
+            c.fill(0)
+            self._test_equal(a, b)
+            self._test_not_equal(c, b)
+
+        # Test numeric types and object
+        for t in '?bhilqpBHILQPfdgFDG':
+            foo(t)
+
+        # Test strings
+        for t in ['S1', 'U1']:
+            foo(t)
+
+    def test_nan_array(self):
+        """Test arrays with nan values in them."""
+        a = np.array([1, 2, np.nan])
+        b = np.array([1, 2, np.nan])
+
+        self._test_equal(a, b)
+
+        c = np.array([1, 2, 3])
+        self._test_not_equal(c, b)
+
+    def test_string_arrays(self):
+        """Test two arrays with different shapes are found not equal."""
+        a = np.array(['floupi', 'floupa'])
+        b = np.array(['floupi', 'floupa'])
+
+        self._test_equal(a, b)
+
+        c = np.array(['floupipi', 'floupa'])
+
+        self._test_not_equal(c, b)
+
+    def test_recarrays(self):
+        """Test record arrays."""
+        a = np.empty(2, [('floupi', float), ('floupa', float)])
+        a['floupi'] = [1, 2]
+        a['floupa'] = [1, 2]
+        b = a.copy()
+
+        self._test_equal(a, b)
+
+        c = np.empty(2, [('floupipi', float),
+                         ('floupi', float), ('floupa', float)])
+        c['floupipi'] = a['floupi'].copy()
+        c['floupa'] = a['floupa'].copy()
+
+        with pytest.raises(TypeError):
+            self._test_not_equal(c, b)
+
+    def test_masked_nan_inf(self):
+        # Regression test for gh-11121
+        a = np.ma.MaskedArray([3., 4., 6.5], mask=[False, True, False])
+        b = np.array([3., np.nan, 6.5])
+        self._test_equal(a, b)
+        self._test_equal(b, a)
+        a = np.ma.MaskedArray([3., 4., 6.5], mask=[True, False, False])
+        b = np.array([np.inf, 4., 6.5])
+        self._test_equal(a, b)
+        self._test_equal(b, a)
+
+    # Also provides test cases for gh-11121
+    def test_masked_scalar(self):
+        # Test masked scalar vs. plain/masked scalar
+        for a_val, b_val, b_masked in itertools.product(
+            [3., np.nan, np.inf],
+            [3., 4., np.nan, np.inf, -np.inf],
+            [False, True],
+        ):
+            a = np.ma.MaskedArray(a_val, mask=True)
+            b = np.ma.MaskedArray(b_val, mask=True) if b_masked else np.array(b_val)
+            self._test_equal(a, b)
+            self._test_equal(b, a)
+
+        # Test masked scalar vs. plain array
+        for a_val, b_val in itertools.product(
+            [3., np.nan, -np.inf],
+            itertools.product([3., 4., np.nan, np.inf, -np.inf], repeat=2),
+        ):
+            a = np.ma.MaskedArray(a_val, mask=True)
+            b = np.array(b_val)
+            self._test_equal(a, b)
+            self._test_equal(b, a)
+
+        # Test masked scalar vs. masked array
+        for a_val, b_val, b_mask in itertools.product(
+            [3., np.nan, np.inf],
+            itertools.product([3., 4., np.nan, np.inf, -np.inf], repeat=2),
+            itertools.product([False, True], repeat=2),
+        ):
+            a = np.ma.MaskedArray(a_val, mask=True)
+            b = np.ma.MaskedArray(b_val, mask=b_mask)
+            self._test_equal(a, b)
+            self._test_equal(b, a)
+
+    def test_subclass_that_overrides_eq(self):
+        # While we cannot guarantee testing functions will always work for
+        # subclasses, the tests should ideally rely only on subclasses having
+        # comparison operators, not on them being able to store booleans
+        # (which, e.g., astropy Quantity cannot usefully do). See gh-8452.
+        class MyArray(np.ndarray):
+            def __eq__(self, other):
+                return bool(np.equal(self, other).all())
+
+            def __ne__(self, other):
+                return not self == other
+
+        a = np.array([1., 2.]).view(MyArray)
+        b = np.array([2., 3.]).view(MyArray)
+        assert_(type(a == a), bool)
+        assert_(a == a)
+        assert_(a != b)
+        self._test_equal(a, a)
+        self._test_not_equal(a, b)
+        self._test_not_equal(b, a)
+
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Max absolute difference among violations: 1.\n'
+                        'Max relative difference among violations: 0.5')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._test_equal(a, b)
+
+        c = np.array([0., 2.9]).view(MyArray)
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Max absolute difference among violations: 2.\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._test_equal(b, c)
+
+    def test_subclass_that_does_not_implement_npall(self):
+        class MyArray(np.ndarray):
+            def __array_function__(self, *args, **kwargs):
+                return NotImplemented
+
+        a = np.array([1., 2.]).view(MyArray)
+        b = np.array([2., 3.]).view(MyArray)
+        with assert_raises(TypeError):
+            np.all(a)
+        self._test_equal(a, a)
+        self._test_not_equal(a, b)
+        self._test_not_equal(b, a)
+
+    def test_suppress_overflow_warnings(self):
+        # Based on issue #18992
+        with pytest.raises(AssertionError):
+            with np.errstate(all="raise"):
+                np.testing.assert_array_equal(
+                    np.array([1, 2, 3], np.float32),
+                    np.array([1, 1e-40, 3], np.float32))
+
+    def test_array_vs_scalar_is_equal(self):
+        """Test comparing an array with a scalar when all values are equal."""
+        a = np.array([1., 1., 1.])
+        b = 1.
+
+        self._test_equal(a, b)
+
+    def test_array_vs_array_not_equal(self):
+        """Test comparing an array with a scalar when not all values equal."""
+        a = np.array([34986, 545676, 439655, 563766])
+        b = np.array([34986, 545676, 439655, 0])
+
+        expected_msg = ('Mismatched elements: 1 / 4 (25%)\n'
+                        'Mismatch at index:\n'
+                        ' [3]: 563766 (ACTUAL), 0 (DESIRED)\n'
+                        'Max absolute difference among violations: 563766\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b)
+
+        a = np.array([34986, 545676, 439655.2, 563766])
+        expected_msg = ('Mismatched elements: 2 / 4 (50%)\n'
+                        'Mismatch at indices:\n'
+                        ' [2]: 439655.2 (ACTUAL), 439655 (DESIRED)\n'
+                        ' [3]: 563766.0 (ACTUAL), 0 (DESIRED)\n'
+                        'Max absolute difference among violations: '
+                        '563766.\n'
+                        'Max relative difference among violations: '
+                        '4.54902139e-07')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b)
+
+    def test_array_vs_scalar_strict(self):
+        """Test comparing an array with a scalar with strict option."""
+        a = np.array([1., 1., 1.])
+        b = 1.
+
+        with pytest.raises(AssertionError):
+            self._assert_func(a, b, strict=True)
+
+    def test_array_vs_array_strict(self):
+        """Test comparing two arrays with strict option."""
+        a = np.array([1., 1., 1.])
+        b = np.array([1., 1., 1.])
+
+        self._assert_func(a, b, strict=True)
+
+    def test_array_vs_float_array_strict(self):
+        """Test comparing two arrays with strict option."""
+        a = np.array([1, 1, 1])
+        b = np.array([1., 1., 1.])
+
+        with pytest.raises(AssertionError):
+            self._assert_func(a, b, strict=True)
+
+
+class TestBuildErrorMessage:
+
+    def test_build_err_msg_defaults(self):
+        x = np.array([1.00001, 2.00002, 3.00003])
+        y = np.array([1.00002, 2.00003, 3.00004])
+        err_msg = 'There is a mismatch'
+
+        a = build_err_msg([x, y], err_msg)
+        b = ('\nItems are not equal: There is a mismatch\n ACTUAL: array(['
+             '1.00001, 2.00002, 3.00003])\n DESIRED: array([1.00002, '
+             '2.00003, 3.00004])')
+        assert_equal(a, b)
+
+    def test_build_err_msg_no_verbose(self):
+        x = np.array([1.00001, 2.00002, 3.00003])
+        y = np.array([1.00002, 2.00003, 3.00004])
+        err_msg = 'There is a mismatch'
+
+        a = build_err_msg([x, y], err_msg, verbose=False)
+        b = '\nItems are not equal: There is a mismatch'
+        assert_equal(a, b)
+
+    def test_build_err_msg_custom_names(self):
+        x = np.array([1.00001, 2.00002, 3.00003])
+        y = np.array([1.00002, 2.00003, 3.00004])
+        err_msg = 'There is a mismatch'
+
+        a = build_err_msg([x, y], err_msg, names=('FOO', 'BAR'))
+        b = ('\nItems are not equal: There is a mismatch\n FOO: array(['
+             '1.00001, 2.00002, 3.00003])\n BAR: array([1.00002, 2.00003, '
+             '3.00004])')
+        assert_equal(a, b)
+
+    def test_build_err_msg_custom_precision(self):
+        x = np.array([1.000000001, 2.00002, 3.00003])
+        y = np.array([1.000000002, 2.00003, 3.00004])
+        err_msg = 'There is a mismatch'
+
+        a = build_err_msg([x, y], err_msg, precision=10)
+        b = ('\nItems are not equal: There is a mismatch\n ACTUAL: array(['
+             '1.000000001, 2.00002    , 3.00003    ])\n DESIRED: array(['
+             '1.000000002, 2.00003    , 3.00004    ])')
+        assert_equal(a, b)
+
+
+class TestEqual(TestArrayEqual):
+
+    def _assert_func(self, *args, **kwargs):
+        assert_equal(*args, **kwargs)
+
+    def test_nan_items(self):
+        self._assert_func(np.nan, np.nan)
+        self._assert_func([np.nan], [np.nan])
+        self._test_not_equal(np.nan, [np.nan])
+        self._test_not_equal(np.nan, 1)
+
+    def test_inf_items(self):
+        self._assert_func(np.inf, np.inf)
+        self._assert_func([np.inf], [np.inf])
+        self._test_not_equal(np.inf, [np.inf])
+
+    def test_datetime(self):
+        self._test_equal(
+            np.datetime64("2017-01-01", "s"),
+            np.datetime64("2017-01-01", "s")
+        )
+        self._test_equal(
+            np.datetime64("2017-01-01", "s"),
+            np.datetime64("2017-01-01", "m")
+        )
+
+        # gh-10081
+        self._test_not_equal(
+            np.datetime64("2017-01-01", "s"),
+            np.datetime64("2017-01-02", "s")
+        )
+        self._test_not_equal(
+            np.datetime64("2017-01-01", "s"),
+            np.datetime64("2017-01-02", "m")
+        )
+
+    def test_nat_items(self):
+        # not a datetime
+        nadt_no_unit = np.datetime64("NaT")
+        nadt_s = np.datetime64("NaT", "s")
+        nadt_d = np.datetime64("NaT", "ns")
+        # not a timedelta
+        natd_no_unit = np.timedelta64("NaT")
+        natd_s = np.timedelta64("NaT", "s")
+        natd_d = np.timedelta64("NaT", "ns")
+
+        dts = [nadt_no_unit, nadt_s, nadt_d]
+        tds = [natd_no_unit, natd_s, natd_d]
+        for a, b in itertools.product(dts, dts):
+            self._assert_func(a, b)
+            self._assert_func([a], [b])
+            self._test_not_equal([a], b)
+
+        for a, b in itertools.product(tds, tds):
+            self._assert_func(a, b)
+            self._assert_func([a], [b])
+            self._test_not_equal([a], b)
+
+        for a, b in itertools.product(tds, dts):
+            self._test_not_equal(a, b)
+            self._test_not_equal(a, [b])
+            self._test_not_equal([a], [b])
+            self._test_not_equal([a], np.datetime64("2017-01-01", "s"))
+            self._test_not_equal([b], np.datetime64("2017-01-01", "s"))
+            self._test_not_equal([a], np.timedelta64(123, "s"))
+            self._test_not_equal([b], np.timedelta64(123, "s"))
+
+    def test_non_numeric(self):
+        self._assert_func('ab', 'ab')
+        self._test_not_equal('ab', 'abb')
+
+    def test_complex_item(self):
+        self._assert_func(complex(1, 2), complex(1, 2))
+        self._assert_func(complex(1, np.nan), complex(1, np.nan))
+        self._test_not_equal(complex(1, np.nan), complex(1, 2))
+        self._test_not_equal(complex(np.nan, 1), complex(1, np.nan))
+        self._test_not_equal(complex(np.nan, np.inf), complex(np.nan, 2))
+
+    def test_negative_zero(self):
+        self._test_not_equal(ncu.PZERO, ncu.NZERO)
+
+    def test_complex(self):
+        x = np.array([complex(1, 2), complex(1, np.nan)])
+        y = np.array([complex(1, 2), complex(1, 2)])
+        self._assert_func(x, x)
+        self._test_not_equal(x, y)
+
+    def test_object(self):
+        # gh-12942
+        import datetime
+        a = np.array([datetime.datetime(2000, 1, 1),
+                      datetime.datetime(2000, 1, 2)])
+        self._test_not_equal(a, a[::-1])
+
+
+class TestArrayAlmostEqual(_GenericTest):
+
+    def _assert_func(self, *args, **kwargs):
+        assert_array_almost_equal(*args, **kwargs)
+
+    def test_closeness(self):
+        # Note that in the course of time we ended up with
+        #     `abs(x - y) < 1.5 * 10**(-decimal)`
+        # instead of the previously documented
+        #     `abs(x - y) < 0.5 * 10**(-decimal)`
+        # so this check serves to preserve the wrongness.
+
+        # test scalars
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Max absolute difference among violations: 1.5\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(1.5, 0.0, decimal=0)
+
+        # test arrays
+        self._assert_func([1.499999], [0.0], decimal=0)
+
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Mismatch at index:\n'
+                        ' [0]: 1.5 (ACTUAL), 0.0 (DESIRED)\n'
+                        'Max absolute difference among violations: 1.5\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func([1.5], [0.0], decimal=0)
+
+        a = [1.4999999, 0.00003]
+        b = [1.49999991, 0]
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: 3e-05 (ACTUAL), 0.0 (DESIRED)\n'
+                        'Max absolute difference among violations: 3.e-05\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b, decimal=7)
+
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: 0.0 (ACTUAL), 3e-05 (DESIRED)\n'
+                        'Max absolute difference among violations: 3.e-05\n'
+                        'Max relative difference among violations: 1.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(b, a, decimal=7)
+
+    def test_simple(self):
+        x = np.array([1234.2222])
+        y = np.array([1234.2223])
+
+        self._assert_func(x, y, decimal=3)
+        self._assert_func(x, y, decimal=4)
+
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Mismatch at index:\n'
+                        ' [0]: 1234.2222 (ACTUAL), 1234.2223 (DESIRED)\n'
+                        'Max absolute difference among violations: '
+                        '1.e-04\n'
+                        'Max relative difference among violations: '
+                        '8.10226812e-08')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y, decimal=5)
+
+    def test_array_vs_scalar(self):
+        a = [5498.42354, 849.54345, 0.00]
+        b = 5498.42354
+        expected_msg = ('Mismatched elements: 2 / 3 (66.7%)\n'
+                        'Mismatch at indices:\n'
+                        ' [1]: 849.54345 (ACTUAL), 5498.42354 (DESIRED)\n'
+                        ' [2]: 0.0 (ACTUAL), 5498.42354 (DESIRED)\n'
+                        'Max absolute difference among violations: '
+                        '5498.42354\n'
+                        'Max relative difference among violations: 1.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b, decimal=9)
+
+        expected_msg = ('Mismatched elements: 2 / 3 (66.7%)\n'
+                        'Mismatch at indices:\n'
+                        ' [1]: 5498.42354 (ACTUAL), 849.54345 (DESIRED)\n'
+                        ' [2]: 5498.42354 (ACTUAL), 0.0 (DESIRED)\n'
+                        'Max absolute difference among violations: '
+                        '5498.42354\n'
+                        'Max relative difference among violations: 5.4722099')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(b, a, decimal=9)
+
+        a = [5498.42354, 0.00]
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: 5498.42354 (ACTUAL), 0.0 (DESIRED)\n'
+                        'Max absolute difference among violations: '
+                        '5498.42354\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(b, a, decimal=7)
+
+        b = 0
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Mismatch at index:\n'
+                        ' [0]: 5498.42354 (ACTUAL), 0 (DESIRED)\n'
+                        'Max absolute difference among violations: '
+                        '5498.42354\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b, decimal=7)
+
+    def test_nan(self):
+        anan = np.array([np.nan])
+        aone = np.array([1])
+        ainf = np.array([np.inf])
+        self._assert_func(anan, anan)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(anan, aone))
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(anan, ainf))
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(ainf, anan))
+
+    def test_inf(self):
+        a = np.array([[1., 2.], [3., 4.]])
+        b = a.copy()
+        a[0, 0] = np.inf
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(a, b))
+        b[0, 0] = -np.inf
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(a, b))
+
+    def test_complex_inf(self):
+        a = np.array([np.inf + 1.j, 2. + 1.j, 3. + 1.j])
+        b = a.copy()
+        self._assert_func(a, b)
+        b[1] = 3. + 1.j
+        expected_msg = ('Mismatched elements: 1 / 3 (33.3%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: (2+1j) (ACTUAL), (3+1j) (DESIRED)\n'
+                        'Max absolute difference among violations: 1.\n')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b)
+
+    def test_subclass(self):
+        a = np.array([[1., 2.], [3., 4.]])
+        b = np.ma.masked_array([[1., 2.], [0., 4.]],
+                               [[False, False], [True, False]])
+        self._assert_func(a, b)
+        self._assert_func(b, a)
+        self._assert_func(b, b)
+
+        # Test fully masked as well (see gh-11123).
+        a = np.ma.MaskedArray(3.5, mask=True)
+        b = np.array([3., 4., 6.5])
+        self._test_equal(a, b)
+        self._test_equal(b, a)
+        a = np.ma.masked
+        b = np.array([3., 4., 6.5])
+        self._test_equal(a, b)
+        self._test_equal(b, a)
+        a = np.ma.MaskedArray([3., 4., 6.5], mask=[True, True, True])
+        b = np.array([1., 2., 3.])
+        self._test_equal(a, b)
+        self._test_equal(b, a)
+        a = np.ma.MaskedArray([3., 4., 6.5], mask=[True, True, True])
+        b = np.array(1.)
+        self._test_equal(a, b)
+        self._test_equal(b, a)
+
+    def test_subclass_2(self):
+        # While we cannot guarantee testing functions will always work for
+        # subclasses, the tests should ideally rely only on subclasses having
+        # comparison operators, not on them being able to store booleans
+        # (which, e.g., astropy Quantity cannot usefully do). See gh-8452.
+        class MyArray(np.ndarray):
+            def __eq__(self, other):
+                return super().__eq__(other).view(np.ndarray)
+
+            def __lt__(self, other):
+                return super().__lt__(other).view(np.ndarray)
+
+            def all(self, *args, **kwargs):
+                return all(self)
+
+        a = np.array([1., 2.]).view(MyArray)
+        self._assert_func(a, a)
+
+        z = np.array([True, True]).view(MyArray)
+        all(z)
+        b = np.array([1., 202]).view(MyArray)
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: 2.0 (ACTUAL), 202.0 (DESIRED)\n'
+                        'Max absolute difference among violations: 200.\n'
+                        'Max relative difference among violations: 0.99009')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b)
+
+    def test_subclass_that_cannot_be_bool(self):
+        # While we cannot guarantee testing functions will always work for
+        # subclasses, the tests should ideally rely only on subclasses having
+        # comparison operators, not on them being able to store booleans
+        # (which, e.g., astropy Quantity cannot usefully do). See gh-8452.
+        class MyArray(np.ndarray):
+            def __eq__(self, other):
+                return super().__eq__(other).view(np.ndarray)
+
+            def __lt__(self, other):
+                return super().__lt__(other).view(np.ndarray)
+
+            def all(self, *args, **kwargs):
+                raise NotImplementedError
+
+        a = np.array([1., 2.]).view(MyArray)
+        self._assert_func(a, a)
+
+
+class TestAlmostEqual(_GenericTest):
+
+    def _assert_func(self, *args, **kwargs):
+        assert_almost_equal(*args, **kwargs)
+
+    def test_closeness(self):
+        # Note that in the course of time we ended up with
+        #     `abs(x - y) < 1.5 * 10**(-decimal)`
+        # instead of the previously documented
+        #     `abs(x - y) < 0.5 * 10**(-decimal)`
+        # so this check serves to preserve the wrongness.
+
+        # test scalars
+        self._assert_func(1.499999, 0.0, decimal=0)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(1.5, 0.0, decimal=0))
+
+        # test arrays
+        self._assert_func([1.499999], [0.0], decimal=0)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func([1.5], [0.0], decimal=0))
+
+    def test_nan_item(self):
+        self._assert_func(np.nan, np.nan)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(np.nan, 1))
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(np.nan, np.inf))
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(np.inf, np.nan))
+
+    def test_inf_item(self):
+        self._assert_func(np.inf, np.inf)
+        self._assert_func(-np.inf, -np.inf)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(np.inf, 1))
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(-np.inf, np.inf))
+
+    def test_simple_item(self):
+        self._test_not_equal(1, 2)
+
+    def test_complex_item(self):
+        self._assert_func(complex(1, 2), complex(1, 2))
+        self._assert_func(complex(1, np.nan), complex(1, np.nan))
+        self._assert_func(complex(np.inf, np.nan), complex(np.inf, np.nan))
+        self._test_not_equal(complex(1, np.nan), complex(1, 2))
+        self._test_not_equal(complex(np.nan, 1), complex(1, np.nan))
+        self._test_not_equal(complex(np.nan, np.inf), complex(np.nan, 2))
+
+    def test_complex(self):
+        x = np.array([complex(1, 2), complex(1, np.nan)])
+        z = np.array([complex(1, 2), complex(np.nan, 1)])
+        y = np.array([complex(1, 2), complex(1, 2)])
+        self._assert_func(x, x)
+        self._test_not_equal(x, y)
+        self._test_not_equal(x, z)
+
+    def test_error_message(self):
+        """Check the message is formatted correctly for the decimal value.
+           Also check the message when input includes inf or nan (gh12200)"""
+        x = np.array([1.00000000001, 2.00000000002, 3.00003])
+        y = np.array([1.00000000002, 2.00000000003, 3.00004])
+
+        # Test with a different amount of decimal digits
+        expected_msg = ('Mismatched elements: 3 / 3 (100%)\n'
+                        'Mismatch at indices:\n'
+                        ' [0]: 1.00000000001 (ACTUAL), 1.00000000002 (DESIRED)\n'
+                        ' [1]: 2.00000000002 (ACTUAL), 2.00000000003 (DESIRED)\n'
+                        ' [2]: 3.00003 (ACTUAL), 3.00004 (DESIRED)\n'
+                        'Max absolute difference among violations: 1.e-05\n'
+                        'Max relative difference among violations: '
+                        '3.33328889e-06\n'
+                        ' ACTUAL: array([1.00000000001, '
+                        '2.00000000002, '
+                        '3.00003      ])\n'
+                        ' DESIRED: array([1.00000000002, 2.00000000003, '
+                        '3.00004      ])')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y, decimal=12)
+
+        # With the default value of decimal digits, only the 3rd element
+        # differs. Note that we only check for the formatting of the arrays
+        # themselves.
+        expected_msg = ('Mismatched elements: 1 / 3 (33.3%)\n'
+                        'Mismatch at index:\n'
+                        ' [2]: 3.00003 (ACTUAL), 3.00004 (DESIRED)\n'
+                        'Max absolute difference among violations: 1.e-05\n'
+                        'Max relative difference among violations: '
+                        '3.33328889e-06\n'
+                        ' ACTUAL: array([1.     , 2.     , 3.00003])\n'
+                        ' DESIRED: array([1.     , 2.     , 3.00004])')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        # Check the error message when input includes inf
+        x = np.array([np.inf, 0])
+        y = np.array([np.inf, 1])
+        expected_msg = ('Mismatched elements: 1 / 2 (50%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: 0.0 (ACTUAL), 1.0 (DESIRED)\n'
+                        'Max absolute difference among violations: 1.\n'
+                        'Max relative difference among violations: 1.\n'
+                        ' ACTUAL: array([inf,  0.])\n'
+                        ' DESIRED: array([inf,  1.])')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        # Check the error message when dividing by zero
+        x = np.array([1, 2])
+        y = np.array([0, 0])
+        expected_msg = ('Mismatched elements: 2 / 2 (100%)\n'
+                        'Mismatch at indices:\n'
+                        ' [0]: 1 (ACTUAL), 0 (DESIRED)\n'
+                        ' [1]: 2 (ACTUAL), 0 (DESIRED)\n'
+                        'Max absolute difference among violations: 2\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+    def test_error_message_2(self):
+        """Check the message is formatted correctly """
+        """when either x or y is a scalar."""
+        x = 2
+        y = np.ones(20)
+        expected_msg = ('Mismatched elements: 20 / 20 (100%)\n'
+                        'First 5 mismatches are at indices:\n'
+                        ' [0]: 2 (ACTUAL), 1.0 (DESIRED)\n'
+                        ' [1]: 2 (ACTUAL), 1.0 (DESIRED)\n'
+                        ' [2]: 2 (ACTUAL), 1.0 (DESIRED)\n'
+                        ' [3]: 2 (ACTUAL), 1.0 (DESIRED)\n'
+                        ' [4]: 2 (ACTUAL), 1.0 (DESIRED)\n'
+                        'Max absolute difference among violations: 1.\n'
+                        'Max relative difference among violations: 1.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        y = 2
+        x = np.ones(20)
+        expected_msg = ('Mismatched elements: 20 / 20 (100%)\n'
+                        'First 5 mismatches are at indices:\n'
+                        ' [0]: 1.0 (ACTUAL), 2 (DESIRED)\n'
+                        ' [1]: 1.0 (ACTUAL), 2 (DESIRED)\n'
+                        ' [2]: 1.0 (ACTUAL), 2 (DESIRED)\n'
+                        ' [3]: 1.0 (ACTUAL), 2 (DESIRED)\n'
+                        ' [4]: 1.0 (ACTUAL), 2 (DESIRED)\n'
+                        'Max absolute difference among violations: 1.\n'
+                        'Max relative difference among violations: 0.5')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+    def test_subclass_that_cannot_be_bool(self):
+        # While we cannot guarantee testing functions will always work for
+        # subclasses, the tests should ideally rely only on subclasses having
+        # comparison operators, not on them being able to store booleans
+        # (which, e.g., astropy Quantity cannot usefully do). See gh-8452.
+        class MyArray(np.ndarray):
+            def __eq__(self, other):
+                return super().__eq__(other).view(np.ndarray)
+
+            def __lt__(self, other):
+                return super().__lt__(other).view(np.ndarray)
+
+            def all(self, *args, **kwargs):
+                raise NotImplementedError
+
+        a = np.array([1., 2.]).view(MyArray)
+        self._assert_func(a, a)
+
+
+class TestApproxEqual:
+
+    def _assert_func(self, *args, **kwargs):
+        assert_approx_equal(*args, **kwargs)
+
+    def test_simple_0d_arrays(self):
+        x = np.array(1234.22)
+        y = np.array(1234.23)
+
+        self._assert_func(x, y, significant=5)
+        self._assert_func(x, y, significant=6)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(x, y, significant=7))
+
+    def test_simple_items(self):
+        x = 1234.22
+        y = 1234.23
+
+        self._assert_func(x, y, significant=4)
+        self._assert_func(x, y, significant=5)
+        self._assert_func(x, y, significant=6)
+        assert_raises(AssertionError,
+                      lambda: self._assert_func(x, y, significant=7))
+
+    def test_nan_array(self):
+        anan = np.array(np.nan)
+        aone = np.array(1)
+        ainf = np.array(np.inf)
+        self._assert_func(anan, anan)
+        assert_raises(AssertionError, lambda: self._assert_func(anan, aone))
+        assert_raises(AssertionError, lambda: self._assert_func(anan, ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, anan))
+
+    def test_nan_items(self):
+        anan = np.array(np.nan)
+        aone = np.array(1)
+        ainf = np.array(np.inf)
+        self._assert_func(anan, anan)
+        assert_raises(AssertionError, lambda: self._assert_func(anan, aone))
+        assert_raises(AssertionError, lambda: self._assert_func(anan, ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, anan))
+
+
+class TestArrayAssertLess:
+
+    def _assert_func(self, *args, **kwargs):
+        assert_array_less(*args, **kwargs)
+
+    def test_simple_arrays(self):
+        x = np.array([1.1, 2.2])
+        y = np.array([1.2, 2.3])
+
+        self._assert_func(x, y)
+        assert_raises(AssertionError, lambda: self._assert_func(y, x))
+
+        y = np.array([1.0, 2.3])
+
+        assert_raises(AssertionError, lambda: self._assert_func(x, y))
+        assert_raises(AssertionError, lambda: self._assert_func(y, x))
+
+        a = np.array([1, 3, 6, 20])
+        b = np.array([2, 4, 6, 8])
+
+        expected_msg = ('Mismatched elements: 2 / 4 (50%)\n'
+                        'Mismatch at indices:\n'
+                        ' [2]: 6 (x), 6 (y)\n'
+                        ' [3]: 20 (x), 8 (y)\n'
+                        'Max absolute difference among violations: 12\n'
+                        'Max relative difference among violations: 1.5')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(a, b)
+
+    def test_rank2(self):
+        x = np.array([[1.1, 2.2], [3.3, 4.4]])
+        y = np.array([[1.2, 2.3], [3.4, 4.5]])
+
+        self._assert_func(x, y)
+        expected_msg = ('Mismatched elements: 4 / 4 (100%)\n'
+                        'Mismatch at indices:\n'
+                        ' [0, 0]: 1.2 (x), 1.1 (y)\n'
+                        ' [0, 1]: 2.3 (x), 2.2 (y)\n'
+                        ' [1, 0]: 3.4 (x), 3.3 (y)\n'
+                        ' [1, 1]: 4.5 (x), 4.4 (y)\n'
+                        'Max absolute difference among violations: 0.1\n'
+                        'Max relative difference among violations: 0.09090909')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(y, x)
+
+        y = np.array([[1.0, 2.3], [3.4, 4.5]])
+        assert_raises(AssertionError, lambda: self._assert_func(x, y))
+        assert_raises(AssertionError, lambda: self._assert_func(y, x))
+
+    def test_rank3(self):
+        x = np.ones(shape=(2, 2, 2))
+        y = np.ones(shape=(2, 2, 2)) + 1
+
+        self._assert_func(x, y)
+        assert_raises(AssertionError, lambda: self._assert_func(y, x))
+
+        y[0, 0, 0] = 0
+        expected_msg = ('Mismatched elements: 1 / 8 (12.5%)\n'
+                        'Mismatch at index:\n'
+                        ' [0, 0, 0]: 1.0 (x), 0.0 (y)\n'
+                        'Max absolute difference among violations: 1.\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        assert_raises(AssertionError, lambda: self._assert_func(y, x))
+
+    def test_simple_items(self):
+        x = 1.1
+        y = 2.2
+
+        self._assert_func(x, y)
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Max absolute difference among violations: 1.1\n'
+                        'Max relative difference among violations: 1.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(y, x)
+
+        y = np.array([2.2, 3.3])
+
+        self._assert_func(x, y)
+        assert_raises(AssertionError, lambda: self._assert_func(y, x))
+
+        y = np.array([1.0, 3.3])
+
+        assert_raises(AssertionError, lambda: self._assert_func(x, y))
+
+    def test_simple_items_and_array(self):
+        x = np.array([[621.345454, 390.5436, 43.54657, 626.4535],
+                      [54.54, 627.3399, 13., 405.5435],
+                      [543.545, 8.34, 91.543, 333.3]])
+        y = 627.34
+        self._assert_func(x, y)
+
+        y = 8.339999
+        self._assert_func(y, x)
+
+        x = np.array([[3.4536, 2390.5436, 435.54657, 324525.4535],
+                      [5449.54, 999090.54, 130303.54, 405.5435],
+                      [543.545, 8.34, 91.543, 999090.53999]])
+        y = 999090.54
+
+        expected_msg = ('Mismatched elements: 1 / 12 (8.33%)\n'
+                        'Mismatch at index:\n'
+                        ' [1, 1]: 999090.54 (x), 999090.54 (y)\n'
+                        'Max absolute difference among violations: 0.\n'
+                        'Max relative difference among violations: 0.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        expected_msg = ('Mismatched elements: 12 / 12 (100%)\n'
+                        'First 5 mismatches are at indices:\n'
+                        ' [0, 0]: 999090.54 (x), 3.4536 (y)\n'
+                        ' [0, 1]: 999090.54 (x), 2390.5436 (y)\n'
+                        ' [0, 2]: 999090.54 (x), 435.54657 (y)\n'
+                        ' [0, 3]: 999090.54 (x), 324525.4535 (y)\n'
+                        ' [1, 0]: 999090.54 (x), 5449.54 (y)\n'
+                        'Max absolute difference among violations: '
+                        '999087.0864\n'
+                        'Max relative difference among violations: '
+                        '289288.5934676')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(y, x)
+
+    def test_zeroes(self):
+        x = np.array([546456., 0, 15.455])
+        y = np.array(87654.)
+
+        expected_msg = ('Mismatched elements: 1 / 3 (33.3%)\n'
+                        'Mismatch at index:\n'
+                        ' [0]: 546456.0 (x), 87654.0 (y)\n'
+                        'Max absolute difference among violations: 458802.\n'
+                        'Max relative difference among violations: 5.23423917')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        expected_msg = ('Mismatched elements: 2 / 3 (66.7%)\n'
+                        'Mismatch at indices:\n'
+                        ' [1]: 87654.0 (x), 0.0 (y)\n'
+                        ' [2]: 87654.0 (x), 15.455 (y)\n'
+                        'Max absolute difference among violations: 87654.\n'
+                        'Max relative difference among violations: '
+                        '5670.5626011')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(y, x)
+
+        y = 0
+
+        expected_msg = ('Mismatched elements: 3 / 3 (100%)\n'
+                        'Mismatch at indices:\n'
+                        ' [0]: 546456.0 (x), 0 (y)\n'
+                        ' [1]: 0.0 (x), 0 (y)\n'
+                        ' [2]: 15.455 (x), 0 (y)\n'
+                        'Max absolute difference among violations: 546456.\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(x, y)
+
+        expected_msg = ('Mismatched elements: 1 / 3 (33.3%)\n'
+                        'Mismatch at index:\n'
+                        ' [1]: 0 (x), 0.0 (y)\n'
+                        'Max absolute difference among violations: 0.\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            self._assert_func(y, x)
+
+    def test_nan_noncompare(self):
+        anan = np.array(np.nan)
+        aone = np.array(1)
+        ainf = np.array(np.inf)
+        self._assert_func(anan, anan)
+        assert_raises(AssertionError, lambda: self._assert_func(aone, anan))
+        assert_raises(AssertionError, lambda: self._assert_func(anan, aone))
+        assert_raises(AssertionError, lambda: self._assert_func(anan, ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, anan))
+
+    def test_nan_noncompare_array(self):
+        x = np.array([1.1, 2.2, 3.3])
+        anan = np.array(np.nan)
+
+        assert_raises(AssertionError, lambda: self._assert_func(x, anan))
+        assert_raises(AssertionError, lambda: self._assert_func(anan, x))
+
+        x = np.array([1.1, 2.2, np.nan])
+
+        assert_raises(AssertionError, lambda: self._assert_func(x, anan))
+        assert_raises(AssertionError, lambda: self._assert_func(anan, x))
+
+        y = np.array([1.0, 2.0, np.nan])
+
+        self._assert_func(y, x)
+        assert_raises(AssertionError, lambda: self._assert_func(x, y))
+
+    def test_inf_compare(self):
+        aone = np.array(1)
+        ainf = np.array(np.inf)
+
+        self._assert_func(aone, ainf)
+        self._assert_func(-ainf, aone)
+        self._assert_func(-ainf, ainf)
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, aone))
+        assert_raises(AssertionError, lambda: self._assert_func(aone, -ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, -ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(-ainf, -ainf))
+
+    def test_inf_compare_array(self):
+        x = np.array([1.1, 2.2, np.inf])
+        ainf = np.array(np.inf)
+
+        assert_raises(AssertionError, lambda: self._assert_func(x, ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(ainf, x))
+        assert_raises(AssertionError, lambda: self._assert_func(x, -ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(-x, -ainf))
+        assert_raises(AssertionError, lambda: self._assert_func(-ainf, -x))
+        self._assert_func(-ainf, x)
+
+    def test_strict(self):
+        """Test the behavior of the `strict` option."""
+        x = np.zeros(3)
+        y = np.ones(())
+        self._assert_func(x, y)
+        with pytest.raises(AssertionError):
+            self._assert_func(x, y, strict=True)
+        y = np.broadcast_to(y, x.shape)
+        self._assert_func(x, y)
+        with pytest.raises(AssertionError):
+            self._assert_func(x, y.astype(np.float32), strict=True)
+
+@pytest.mark.filterwarnings(
+    "ignore:.*NumPy warning suppression and assertion utilities are deprecated"
+    ".*:DeprecationWarning")
+@pytest.mark.thread_unsafe(reason="checks global module & deprecated warnings")
+class TestWarns:
+
+    def test_warn(self):
+        def f():
+            warnings.warn("yo")
+            return 3
+
+        before_filters = sys.modules['warnings'].filters[:]
+        assert_equal(assert_warns(UserWarning, f), 3)
+        after_filters = sys.modules['warnings'].filters
+
+        assert_raises(AssertionError, assert_no_warnings, f)
+        assert_equal(assert_no_warnings(lambda x: x, 1), 1)
+
+        # Check that the warnings state is unchanged
+        assert_equal(before_filters, after_filters,
+                     "assert_warns does not preserver warnings state")
+
+    def test_context_manager(self):
+
+        before_filters = sys.modules['warnings'].filters[:]
+        with assert_warns(UserWarning):
+            warnings.warn("yo")
+        after_filters = sys.modules['warnings'].filters
+
+        def no_warnings():
+            with assert_no_warnings():
+                warnings.warn("yo")
+
+        assert_raises(AssertionError, no_warnings)
+        assert_equal(before_filters, after_filters,
+                     "assert_warns does not preserver warnings state")
+
+    def test_args(self):
+        def f(a=0, b=1):
+            warnings.warn("yo")
+            return a + b
+
+        assert assert_warns(UserWarning, f, b=20) == 20
+
+        with pytest.raises(RuntimeError) as exc:
+            # assert_warns cannot do regexp matching, use pytest.warns
+            with assert_warns(UserWarning, match="A"):
+                warnings.warn("B", UserWarning)
+        assert "assert_warns" in str(exc)
+        assert "pytest.warns" in str(exc)
+
+        with pytest.raises(RuntimeError) as exc:
+            # assert_warns cannot do regexp matching, use pytest.warns
+            with assert_warns(UserWarning, wrong="A"):
+                warnings.warn("B", UserWarning)
+        assert "assert_warns" in str(exc)
+        assert "pytest.warns" not in str(exc)
+
+    def test_warn_wrong_warning(self):
+        def f():
+            warnings.warn("yo", DeprecationWarning)
+
+        failed = False
+        with warnings.catch_warnings():
+            warnings.simplefilter("error", DeprecationWarning)
+            try:
+                # Should raise a DeprecationWarning
+                assert_warns(UserWarning, f)
+                failed = True
+            except DeprecationWarning:
+                pass
+
+        if failed:
+            raise AssertionError("wrong warning caught by assert_warn")
+
+
+class TestAssertAllclose:
+
+    def test_simple(self):
+        x = 1e-3
+        y = 1e-9
+
+        assert_allclose(x, y, atol=1)
+        assert_raises(AssertionError, assert_allclose, x, y)
+
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Max absolute difference among violations: 0.001\n'
+                        'Max relative difference among violations: 999999.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(x, y)
+
+        z = 0
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Max absolute difference among violations: 1.e-09\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(y, z)
+
+        expected_msg = ('Mismatched elements: 1 / 1 (100%)\n'
+                        'Max absolute difference among violations: 1.e-09\n'
+                        'Max relative difference among violations: 1.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(z, y)
+
+        a = np.array([x, y, x, y])
+        b = np.array([x, y, x, x])
+
+        assert_allclose(a, b, atol=1)
+        assert_raises(AssertionError, assert_allclose, a, b)
+
+        b[-1] = y * (1 + 1e-8)
+        assert_allclose(a, b)
+        assert_raises(AssertionError, assert_allclose, a, b, rtol=1e-9)
+
+        assert_allclose(6, 10, rtol=0.5)
+        assert_raises(AssertionError, assert_allclose, 10, 6, rtol=0.5)
+
+        b = np.array([x, y, x, x])
+        c = np.array([x, y, x, z])
+        expected_msg = ('Mismatched elements: 1 / 4 (25%)\n'
+                        'Mismatch at index:\n'
+                        ' [3]: 0.001 (ACTUAL), 0.0 (DESIRED)\n'
+                        'Max absolute difference among violations: 0.001\n'
+                        'Max relative difference among violations: inf')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(b, c)
+
+        expected_msg = ('Mismatched elements: 1 / 4 (25%)\n'
+                        'Mismatch at index:\n'
+                        ' [3]: 0.0 (ACTUAL), 0.001 (DESIRED)\n'
+                        'Max absolute difference among violations: 0.001\n'
+                        'Max relative difference among violations: 1.')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(c, b)
+
+    def test_min_int(self):
+        a = np.array([np.iinfo(np.int_).min], dtype=np.int_)
+        # Should not raise:
+        assert_allclose(a, a)
+
+    def test_report_fail_percentage(self):
+        a = np.array([1, 1, 1, 1])
+        b = np.array([1, 1, 1, 2])
+
+        expected_msg = ('Mismatched elements: 1 / 4 (25%)\n'
+                        'Mismatch at index:\n'
+                        ' [3]: 1 (ACTUAL), 2 (DESIRED)\n'
+                        'Max absolute difference among violations: 1\n'
+                        'Max relative difference among violations: 0.5')
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(a, b)
+
+    def test_equal_nan(self):
+        a = np.array([np.nan])
+        b = np.array([np.nan])
+        # Should not raise:
+        assert_allclose(a, b, equal_nan=True)
+
+        a = np.array([complex(np.nan, np.inf)])
+        b = np.array([complex(np.nan, np.inf)])
+        assert_allclose(a, b, equal_nan=True)
+        b = np.array([complex(np.nan, -np.inf)])
+        assert_allclose(a, b, equal_nan=True)
+
+    def test_not_equal_nan(self):
+        a = np.array([np.nan])
+        b = np.array([np.nan])
+        assert_raises(AssertionError, assert_allclose, a, b, equal_nan=False)
+
+        a = np.array([complex(np.nan, np.inf)])
+        b = np.array([complex(np.nan, np.inf)])
+        assert_raises(AssertionError, assert_allclose, a, b, equal_nan=False)
+
+    def test_equal_nan_default(self):
+        # Make sure equal_nan default behavior remains unchanged. (All
+        # of these functions use assert_array_compare under the hood.)
+        # None of these should raise.
+        a = np.array([np.nan])
+        b = np.array([np.nan])
+        assert_array_equal(a, b)
+        assert_array_almost_equal(a, b)
+        assert_array_less(a, b)
+        assert_allclose(a, b)
+
+    def test_report_max_relative_error(self):
+        a = np.array([0, 1])
+        b = np.array([0, 2])
+
+        expected_msg = 'Max relative difference among violations: 0.5'
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(a, b)
+
+    def test_timedelta(self):
+        # see gh-18286
+        a = np.array([[1, 2, 3, "NaT"]], dtype="m8[ns]")
+        assert_allclose(a, a)
+
+    def test_error_message_unsigned(self):
+        """Check the message is formatted correctly when overflow can occur
+           (gh21768)"""
+        # Ensure to test for potential overflow in the case of:
+        #        x - y
+        # and
+        #        y - x
+        x = np.asarray([0, 1, 8], dtype='uint8')
+        y = np.asarray([4, 4, 4], dtype='uint8')
+        expected_msg = 'Max absolute difference among violations: 4'
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(x, y, atol=3)
+
+    def test_strict(self):
+        """Test the behavior of the `strict` option."""
+        x = np.ones(3)
+        y = np.ones(())
+        assert_allclose(x, y)
+        with pytest.raises(AssertionError):
+            assert_allclose(x, y, strict=True)
+        assert_allclose(x, x)
+        with pytest.raises(AssertionError):
+            assert_allclose(x, x.astype(np.float32), strict=True)
+
+    def test_infs(self):
+        a = np.array([np.inf])
+        b = np.array([np.inf])
+        assert_allclose(a, b)
+
+        b = np.array([3.])
+        expected_msg = 'inf location mismatch:'
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(a, b)
+
+        b = np.array([-np.inf])
+        expected_msg = 'inf values mismatch:'
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(a, b)
+        b = np.array([complex(np.inf, 1.)])
+        expected_msg = 'inf values mismatch:'
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(a, b)
+
+        a = np.array([complex(np.inf, 1.)])
+        b = np.array([complex(np.inf, 1.)])
+        assert_allclose(a, b)
+
+        b = np.array([complex(np.inf, 2.)])
+        expected_msg = 'inf values mismatch:'
+        with pytest.raises(AssertionError, match=re.escape(expected_msg)):
+            assert_allclose(a, b)
+
+class TestArrayAlmostEqualNulp:
+
+    def test_float64_pass(self):
+        # The number of units of least precision
+        # In this case, use a few places above the lowest level (ie nulp=1)
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float64)
+        x = 10**x
+        x = np.r_[-x, x]
+
+        # Addition
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp / 2.
+        assert_array_almost_equal_nulp(x, y, nulp)
+
+        # Subtraction
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp / 2.
+        assert_array_almost_equal_nulp(x, y, nulp)
+
+    def test_float64_fail(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float64)
+        x = 10**x
+        x = np.r_[-x, x]
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      x, y, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      x, y, nulp)
+
+    def test_float64_ignore_nan(self):
+        # Ignore ULP differences between various NAN's
+        # Note that MIPS may reverse quiet and signaling nans
+        # so we use the builtin version as a base.
+        offset = np.uint64(0xffffffff)
+        nan1_i64 = np.array(np.nan, dtype=np.float64).view(np.uint64)
+        nan2_i64 = nan1_i64 ^ offset  # nan payload on MIPS is all ones.
+        nan1_f64 = nan1_i64.view(np.float64)
+        nan2_f64 = nan2_i64.view(np.float64)
+        assert_array_max_ulp(nan1_f64, nan2_f64, 0)
+
+    def test_float32_pass(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float32)
+        x = 10**x
+        x = np.r_[-x, x]
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp / 2.
+        assert_array_almost_equal_nulp(x, y, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp / 2.
+        assert_array_almost_equal_nulp(x, y, nulp)
+
+    def test_float32_fail(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float32)
+        x = 10**x
+        x = np.r_[-x, x]
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      x, y, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      x, y, nulp)
+
+    def test_float32_ignore_nan(self):
+        # Ignore ULP differences between various NAN's
+        # Note that MIPS may reverse quiet and signaling nans
+        # so we use the builtin version as a base.
+        offset = np.uint32(0xffff)
+        nan1_i32 = np.array(np.nan, dtype=np.float32).view(np.uint32)
+        nan2_i32 = nan1_i32 ^ offset  # nan payload on MIPS is all ones.
+        nan1_f32 = nan1_i32.view(np.float32)
+        nan2_f32 = nan2_i32.view(np.float32)
+        assert_array_max_ulp(nan1_f32, nan2_f32, 0)
+
+    def test_float16_pass(self):
+        nulp = 5
+        x = np.linspace(-4, 4, 10, dtype=np.float16)
+        x = 10**x
+        x = np.r_[-x, x]
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp / 2.
+        assert_array_almost_equal_nulp(x, y, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp / 2.
+        assert_array_almost_equal_nulp(x, y, nulp)
+
+    def test_float16_fail(self):
+        nulp = 5
+        x = np.linspace(-4, 4, 10, dtype=np.float16)
+        x = 10**x
+        x = np.r_[-x, x]
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      x, y, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      x, y, nulp)
+
+    def test_float16_ignore_nan(self):
+        # Ignore ULP differences between various NAN's
+        # Note that MIPS may reverse quiet and signaling nans
+        # so we use the builtin version as a base.
+        offset = np.uint16(0xff)
+        nan1_i16 = np.array(np.nan, dtype=np.float16).view(np.uint16)
+        nan2_i16 = nan1_i16 ^ offset  # nan payload on MIPS is all ones.
+        nan1_f16 = nan1_i16.view(np.float16)
+        nan2_f16 = nan2_i16.view(np.float16)
+        assert_array_max_ulp(nan1_f16, nan2_f16, 0)
+
+    def test_complex128_pass(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float64)
+        x = 10**x
+        x = np.r_[-x, x]
+        xi = x + x * 1j
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp / 2.
+        assert_array_almost_equal_nulp(xi, x + y * 1j, nulp)
+        assert_array_almost_equal_nulp(xi, y + x * 1j, nulp)
+        # The test condition needs to be at least a factor of sqrt(2) smaller
+        # because the real and imaginary parts both change
+        y = x + x * eps * nulp / 4.
+        assert_array_almost_equal_nulp(xi, y + y * 1j, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp / 2.
+        assert_array_almost_equal_nulp(xi, x + y * 1j, nulp)
+        assert_array_almost_equal_nulp(xi, y + x * 1j, nulp)
+        y = x - x * epsneg * nulp / 4.
+        assert_array_almost_equal_nulp(xi, y + y * 1j, nulp)
+
+    def test_complex128_fail(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float64)
+        x = 10**x
+        x = np.r_[-x, x]
+        xi = x + x * 1j
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, x + y * 1j, nulp)
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + x * 1j, nulp)
+        # The test condition needs to be at least a factor of sqrt(2) smaller
+        # because the real and imaginary parts both change
+        y = x + x * eps * nulp
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + y * 1j, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, x + y * 1j, nulp)
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + x * 1j, nulp)
+        y = x - x * epsneg * nulp
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + y * 1j, nulp)
+
+    def test_complex64_pass(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float32)
+        x = 10**x
+        x = np.r_[-x, x]
+        xi = x + x * 1j
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp / 2.
+        assert_array_almost_equal_nulp(xi, x + y * 1j, nulp)
+        assert_array_almost_equal_nulp(xi, y + x * 1j, nulp)
+        y = x + x * eps * nulp / 4.
+        assert_array_almost_equal_nulp(xi, y + y * 1j, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp / 2.
+        assert_array_almost_equal_nulp(xi, x + y * 1j, nulp)
+        assert_array_almost_equal_nulp(xi, y + x * 1j, nulp)
+        y = x - x * epsneg * nulp / 4.
+        assert_array_almost_equal_nulp(xi, y + y * 1j, nulp)
+
+    def test_complex64_fail(self):
+        nulp = 5
+        x = np.linspace(-20, 20, 50, dtype=np.float32)
+        x = 10**x
+        x = np.r_[-x, x]
+        xi = x + x * 1j
+
+        eps = np.finfo(x.dtype).eps
+        y = x + x * eps * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, x + y * 1j, nulp)
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + x * 1j, nulp)
+        y = x + x * eps * nulp
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + y * 1j, nulp)
+
+        epsneg = np.finfo(x.dtype).epsneg
+        y = x - x * epsneg * nulp * 2.
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, x + y * 1j, nulp)
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + x * 1j, nulp)
+        y = x - x * epsneg * nulp
+        assert_raises(AssertionError, assert_array_almost_equal_nulp,
+                      xi, y + y * 1j, nulp)
+
+
+class TestULP:
+
+    def test_equal(self):
+        x = np.random.randn(10)
+        assert_array_max_ulp(x, x, maxulp=0)
+
+    def test_single(self):
+        # Generate 1 + small deviation, check that adding eps gives a few UNL
+        x = np.ones(10).astype(np.float32)
+        x += 0.01 * np.random.randn(10).astype(np.float32)
+        eps = np.finfo(np.float32).eps
+        assert_array_max_ulp(x, x + eps, maxulp=20)
+
+    def test_double(self):
+        # Generate 1 + small deviation, check that adding eps gives a few UNL
+        x = np.ones(10).astype(np.float64)
+        x += 0.01 * np.random.randn(10).astype(np.float64)
+        eps = np.finfo(np.float64).eps
+        assert_array_max_ulp(x, x + eps, maxulp=200)
+
+    def test_inf(self):
+        for dt in [np.float32, np.float64]:
+            inf = np.array([np.inf]).astype(dt)
+            big = np.array([np.finfo(dt).max])
+            assert_array_max_ulp(inf, big, maxulp=200)
+
+    def test_nan(self):
+        # Test that nan is 'far' from small, tiny, inf, max and min
+        for dt in [np.float32, np.float64]:
+            if dt == np.float32:
+                maxulp = 1e6
+            else:
+                maxulp = 1e12
+            inf = np.array([np.inf]).astype(dt)
+            nan = np.array([np.nan]).astype(dt)
+            big = np.array([np.finfo(dt).max])
+            tiny = np.array([np.finfo(dt).tiny])
+            zero = np.array([0.0]).astype(dt)
+            nzero = np.array([-0.0]).astype(dt)
+            assert_raises(AssertionError,
+                          lambda: assert_array_max_ulp(nan, inf,
+                                                       maxulp=maxulp))
+            assert_raises(AssertionError,
+                          lambda: assert_array_max_ulp(nan, big,
+                                                       maxulp=maxulp))
+            assert_raises(AssertionError,
+                          lambda: assert_array_max_ulp(nan, tiny,
+                                                       maxulp=maxulp))
+            assert_raises(AssertionError,
+                          lambda: assert_array_max_ulp(nan, zero,
+                                                       maxulp=maxulp))
+            assert_raises(AssertionError,
+                          lambda: assert_array_max_ulp(nan, nzero,
+                                                       maxulp=maxulp))
+
+
+class TestStringEqual:
+    def test_simple(self):
+        assert_string_equal("hello", "hello")
+        assert_string_equal("hello\nmultiline", "hello\nmultiline")
+
+        with pytest.raises(AssertionError) as exc_info:
+            assert_string_equal("foo\nbar", "hello\nbar")
+        msg = str(exc_info.value)
+        assert_equal(msg, "Differences in strings:\n- foo\n+ hello")
+
+        assert_raises(AssertionError,
+                      lambda: assert_string_equal("foo", "hello"))
+
+    def test_regex(self):
+        assert_string_equal("a+*b", "a+*b")
+
+        assert_raises(AssertionError,
+                      lambda: assert_string_equal("aaa", "a+b"))
+
+
+def assert_warn_len_equal(mod, n_in_context):
+    try:
+        mod_warns = mod.__warningregistry__
+    except AttributeError:
+        # the lack of a __warningregistry__
+        # attribute means that no warning has
+        # occurred; this can be triggered in
+        # a parallel test scenario, while in
+        # a serial test scenario an initial
+        # warning (and therefore the attribute)
+        # are always created first
+        mod_warns = {}
+
+    num_warns = len(mod_warns)
+
+    if 'version' in mod_warns:
+        # Python adds a 'version' entry to the registry,
+        # do not count it.
+        num_warns -= 1
+
+    assert_equal(num_warns, n_in_context)
+
+
+def test_warn_len_equal_call_scenarios():
+    # assert_warn_len_equal is called under
+    # varying circumstances depending on serial
+    # vs. parallel test scenarios; this test
+    # simply aims to probe both code paths and
+    # check that no assertion is uncaught
+
+    # parallel scenario -- no warning issued yet
+    class mod:
+        pass
+
+    mod_inst = mod()
+
+    assert_warn_len_equal(mod=mod_inst,
+                          n_in_context=0)
+
+    # serial test scenario -- the __warningregistry__
+    # attribute should be present
+    class mod:
+        def __init__(self):
+            self.__warningregistry__ = {'warning1': 1,
+                                        'warning2': 2}
+
+    mod_inst = mod()
+    assert_warn_len_equal(mod=mod_inst,
+                          n_in_context=2)
+
+
+def _get_fresh_mod():
+    # Get this module, with warning registry empty
+    my_mod = sys.modules[__name__]
+    try:
+        my_mod.__warningregistry__.clear()
+    except AttributeError:
+        # will not have a __warningregistry__ unless warning has been
+        # raised in the module at some point
+        pass
+    return my_mod
+
+
+@pytest.mark.thread_unsafe(reason="checks global module & deprecated warnings")
+def test_clear_and_catch_warnings():
+    # Initial state of module, no warnings
+    my_mod = _get_fresh_mod()
+    assert_equal(getattr(my_mod, '__warningregistry__', {}), {})
+    with clear_and_catch_warnings(modules=[my_mod]):
+        warnings.simplefilter('ignore')
+        warnings.warn('Some warning')
+    assert_equal(my_mod.__warningregistry__, {})
+    # Without specified modules, don't clear warnings during context.
+    # catch_warnings doesn't make an entry for 'ignore'.
+    with clear_and_catch_warnings():
+        warnings.simplefilter('ignore')
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+
+    # Manually adding two warnings to the registry:
+    my_mod.__warningregistry__ = {'warning1': 1,
+                                  'warning2': 2}
+
+    # Confirm that specifying module keeps old warning, does not add new
+    with clear_and_catch_warnings(modules=[my_mod]):
+        warnings.simplefilter('ignore')
+        warnings.warn('Another warning')
+    assert_warn_len_equal(my_mod, 2)
+
+    # Another warning, no module spec it clears up registry
+    with clear_and_catch_warnings():
+        warnings.simplefilter('ignore')
+        warnings.warn('Another warning')
+    assert_warn_len_equal(my_mod, 0)
+
+
+@pytest.mark.filterwarnings(
+    "ignore:.*NumPy warning suppression and assertion utilities are deprecated"
+    ".*:DeprecationWarning")
+@pytest.mark.thread_unsafe(reason="checks global module & deprecated warnings")
+def test_suppress_warnings_module():
+    # Initial state of module, no warnings
+    my_mod = _get_fresh_mod()
+    assert_equal(getattr(my_mod, '__warningregistry__', {}), {})
+
+    def warn_other_module():
+        # Apply along axis is implemented in python; stacklevel=2 means
+        # we end up inside its module, not ours.
+        def warn(arr):
+            warnings.warn("Some warning 2", stacklevel=2)
+            return arr
+        np.apply_along_axis(warn, 0, [0])
+
+    # Test module based warning suppression:
+    assert_warn_len_equal(my_mod, 0)
+    with suppress_warnings() as sup:
+        sup.record(UserWarning)
+        # suppress warning from other module (may have .pyc ending),
+        # if apply_along_axis is moved, had to be changed.
+        sup.filter(module=np.lib._shape_base_impl)
+        warnings.warn("Some warning")
+        warn_other_module()
+    # Check that the suppression did test the file correctly (this module
+    # got filtered)
+    assert_equal(len(sup.log), 1)
+    assert_equal(sup.log[0].message.args[0], "Some warning")
+    assert_warn_len_equal(my_mod, 0)
+    sup = suppress_warnings()
+    # Will have to be changed if apply_along_axis is moved:
+    sup.filter(module=my_mod)
+    with sup:
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+    # And test repeat works:
+    sup.filter(module=my_mod)
+    with sup:
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+
+    # Without specified modules
+    with suppress_warnings():
+        warnings.simplefilter('ignore')
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+
+
+@pytest.mark.filterwarnings(
+    "ignore:.*NumPy warning suppression and assertion utilities are deprecated"
+    ".*:DeprecationWarning")
+@pytest.mark.thread_unsafe(reason="checks global module & deprecated warnings")
+def test_suppress_warnings_type():
+    # Initial state of module, no warnings
+    my_mod = _get_fresh_mod()
+    assert_equal(getattr(my_mod, '__warningregistry__', {}), {})
+
+    # Test module based warning suppression:
+    with suppress_warnings() as sup:
+        sup.filter(UserWarning)
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+    sup = suppress_warnings()
+    sup.filter(UserWarning)
+    with sup:
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+    # And test repeat works:
+    sup.filter(module=my_mod)
+    with sup:
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+
+    # Without specified modules
+    with suppress_warnings():
+        warnings.simplefilter('ignore')
+        warnings.warn('Some warning')
+    assert_warn_len_equal(my_mod, 0)
+
+
+@pytest.mark.filterwarnings(
+    "ignore:.*NumPy warning suppression and assertion utilities are deprecated"
+    ".*:DeprecationWarning")
+@pytest.mark.thread_unsafe(
+    reason="uses deprecated thread-unsafe warnings control utilities"
+)
+def test_suppress_warnings_decorate_no_record():
+    sup = suppress_warnings()
+    sup.filter(UserWarning)
+
+    @sup
+    def warn(category):
+        warnings.warn('Some warning', category)
+
+    with warnings.catch_warnings(record=True) as w:
+        warnings.simplefilter("always")
+        warn(UserWarning)  # should be suppressed
+        warn(RuntimeWarning)
+        assert_equal(len(w), 1)
+
+
+@pytest.mark.filterwarnings(
+    "ignore:.*NumPy warning suppression and assertion utilities are deprecated"
+    ".*:DeprecationWarning")
+@pytest.mark.thread_unsafe(
+    reason="uses deprecated thread-unsafe warnings control utilities"
+)
+def test_suppress_warnings_record():
+    sup = suppress_warnings()
+    log1 = sup.record()
+
+    with sup:
+        log2 = sup.record(message='Some other warning 2')
+        sup.filter(message='Some warning')
+        warnings.warn('Some warning')
+        warnings.warn('Some other warning')
+        warnings.warn('Some other warning 2')
+
+        assert_equal(len(sup.log), 2)
+        assert_equal(len(log1), 1)
+        assert_equal(len(log2), 1)
+        assert_equal(log2[0].message.args[0], 'Some other warning 2')
+
+    # Do it again, with the same context to see if some warnings survived:
+    with sup:
+        log2 = sup.record(message='Some other warning 2')
+        sup.filter(message='Some warning')
+        warnings.warn('Some warning')
+        warnings.warn('Some other warning')
+        warnings.warn('Some other warning 2')
+
+        assert_equal(len(sup.log), 2)
+        assert_equal(len(log1), 1)
+        assert_equal(len(log2), 1)
+        assert_equal(log2[0].message.args[0], 'Some other warning 2')
+
+    # Test nested:
+    with suppress_warnings() as sup:
+        sup.record()
+        with suppress_warnings() as sup2:
+            sup2.record(message='Some warning')
+            warnings.warn('Some warning')
+            warnings.warn('Some other warning')
+            assert_equal(len(sup2.log), 1)
+        # includes a DeprecationWarning for suppress_warnings
+        assert_equal(len(sup.log), 2)
+
+
+@pytest.mark.filterwarnings(
+    "ignore:.*NumPy warning suppression and assertion utilities are deprecated"
+    ".*:DeprecationWarning")
+@pytest.mark.thread_unsafe(
+    reason="uses deprecated thread-unsafe warnings control utilities"
+)
+def test_suppress_warnings_forwarding():
+    def warn_other_module():
+        # Apply along axis is implemented in python; stacklevel=2 means
+        # we end up inside its module, not ours.
+        def warn(arr):
+            warnings.warn("Some warning", stacklevel=2)
+            return arr
+        np.apply_along_axis(warn, 0, [0])
+
+    with suppress_warnings() as sup:
+        sup.record()
+        with suppress_warnings("always"):
+            for i in range(2):
+                warnings.warn("Some warning")
+
+        # includes a DeprecationWarning for suppress_warnings
+        assert_equal(len(sup.log), 3)
+
+    with suppress_warnings() as sup:
+        sup.record()
+        with suppress_warnings("location"):
+            for i in range(2):
+                warnings.warn("Some warning")
+                warnings.warn("Some warning")
+
+        # includes a DeprecationWarning for suppress_warnings
+        assert_equal(len(sup.log), 3)
+
+    with suppress_warnings() as sup:
+        sup.record()
+        with suppress_warnings("module"):
+            for i in range(2):
+                warnings.warn("Some warning")
+                warnings.warn("Some warning")
+                warn_other_module()
+
+        # includes a DeprecationWarning for suppress_warnings
+        assert_equal(len(sup.log), 3)
+
+    with suppress_warnings() as sup:
+        sup.record()
+        with suppress_warnings("once"):
+            for i in range(2):
+                warnings.warn("Some warning")
+                warnings.warn("Some other warning")
+                warn_other_module()
+
+        # includes a DeprecationWarning for suppress_warnings
+        assert_equal(len(sup.log), 3)
+
+
+def test_tempdir():
+    with tempdir() as tdir:
+        fpath = os.path.join(tdir, 'tmp')
+        with open(fpath, 'w'):
+            pass
+    assert_(not os.path.isdir(tdir))
+
+    raised = False
+    try:
+        with tempdir() as tdir:
+            raise ValueError
+    except ValueError:
+        raised = True
+    assert_(raised)
+    assert_(not os.path.isdir(tdir))
+
+
+def test_temppath():
+    with temppath() as fpath:
+        with open(fpath, 'w'):
+            pass
+    assert_(not os.path.isfile(fpath))
+
+    raised = False
+    try:
+        with temppath() as fpath:
+            raise ValueError
+    except ValueError:
+        raised = True
+    assert_(raised)
+    assert_(not os.path.isfile(fpath))
+
+
+class my_cacw(clear_and_catch_warnings):
+
+    class_modules = (sys.modules[__name__],)
+
+
+@pytest.mark.thread_unsafe(reason="checks global module & deprecated warnings")
+def test_clear_and_catch_warnings_inherit():
+    # Test can subclass and add default modules
+    my_mod = _get_fresh_mod()
+    with my_cacw():
+        warnings.simplefilter('ignore')
+        warnings.warn('Some warning')
+    assert_equal(my_mod.__warningregistry__, {})
+
+
+@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts")
+@pytest.mark.thread_unsafe(reason="garbage collector is global state")
+class TestAssertNoGcCycles:
+    """ Test assert_no_gc_cycles """
+
+    def test_passes(self):
+        def no_cycle():
+            b = []
+            b.append([])
+            return b
+
+        with assert_no_gc_cycles():
+            no_cycle()
+
+        assert_no_gc_cycles(no_cycle)
+
+    def test_asserts(self):
+        def make_cycle():
+            a = []
+            a.append(a)
+            a.append(a)
+            return a
+
+        with assert_raises(AssertionError):
+            with assert_no_gc_cycles():
+                make_cycle()
+
+        with assert_raises(AssertionError):
+            assert_no_gc_cycles(make_cycle)
+
+    @pytest.mark.slow
+    def test_fails(self):
+        """
+        Test that in cases where the garbage cannot be collected, we raise an
+        error, instead of hanging forever trying to clear it.
+        """
+
+        class ReferenceCycleInDel:
+            """
+            An object that not only contains a reference cycle, but creates new
+            cycles whenever it's garbage-collected and its __del__ runs
+            """
+            make_cycle = True
+
+            def __init__(self):
+                self.cycle = self
+
+            def __del__(self):
+                # break the current cycle so that `self` can be freed
+                self.cycle = None
+
+                if ReferenceCycleInDel.make_cycle:
+                    # but create a new one so that the garbage collector (GC) has more
+                    # work to do.
+                    ReferenceCycleInDel()
+
+        try:
+            w = weakref.ref(ReferenceCycleInDel())
+            try:
+                with assert_raises(RuntimeError):
+                    # this will be unable to get a baseline empty garbage
+                    assert_no_gc_cycles(lambda: None)
+            except AssertionError:
+                # the above test is only necessary if the GC actually tried to free
+                # our object anyway.
+                if w() is not None:
+                    pytest.skip("GC does not call __del__ on cyclic objects")
+                    raise
+
+        finally:
+            # make sure that we stop creating reference cycles
+            ReferenceCycleInDel.make_cycle = False
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diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arithmetic.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arithmetic.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..736f8a6876396ef0f03794a3b36532f9522aff3f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arithmetic.pyi
@@ -0,0 +1,126 @@
+from typing import Any
+
+import numpy as np
+import numpy.typing as npt
+
+b_ = np.bool()
+dt = np.datetime64(0, "D")
+td = np.timedelta64(0, "D")
+
+AR_b: npt.NDArray[np.bool]
+AR_u: npt.NDArray[np.uint32]
+AR_i: npt.NDArray[np.int64]
+AR_f: npt.NDArray[np.longdouble]
+AR_c: npt.NDArray[np.complex128]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+
+ANY: Any
+
+AR_LIKE_b: list[bool]
+AR_LIKE_u: list[np.uint32]
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+AR_LIKE_c: list[complex]
+AR_LIKE_m: list[np.timedelta64]
+AR_LIKE_M: list[np.datetime64]
+
+# Array subtraction
+
+# NOTE: mypys `NoReturn` errors are, unfortunately, not that great
+_1 = AR_b - AR_LIKE_b  # type: ignore[var-annotated]
+_2 = AR_LIKE_b - AR_b  # type: ignore[var-annotated]
+AR_i - b""  # type: ignore[operator]
+
+AR_f - AR_LIKE_m  # type: ignore[operator]
+AR_f - AR_LIKE_M  # type: ignore[operator]
+AR_c - AR_LIKE_m  # type: ignore[operator]
+AR_c - AR_LIKE_M  # type: ignore[operator]
+
+AR_m - AR_LIKE_f  # type: ignore[operator]
+AR_M - AR_LIKE_f  # type: ignore[operator]
+AR_m - AR_LIKE_c  # type: ignore[operator]
+AR_M - AR_LIKE_c  # type: ignore[operator]
+
+AR_m - AR_LIKE_M  # type: ignore[operator]
+AR_LIKE_m - AR_M  # type: ignore[operator]
+
+# array floor division
+
+AR_M // AR_LIKE_b  # type: ignore[operator]
+AR_M // AR_LIKE_u  # type: ignore[operator]
+AR_M // AR_LIKE_i  # type: ignore[operator]
+AR_M // AR_LIKE_f  # type: ignore[operator]
+AR_M // AR_LIKE_c  # type: ignore[operator]
+AR_M // AR_LIKE_m  # type: ignore[operator]
+AR_M // AR_LIKE_M  # type: ignore[operator]
+
+AR_b // AR_LIKE_M  # type: ignore[operator]
+AR_u // AR_LIKE_M  # type: ignore[operator]
+AR_i // AR_LIKE_M  # type: ignore[operator]
+AR_f // AR_LIKE_M  # type: ignore[operator]
+AR_c // AR_LIKE_M  # type: ignore[operator]
+AR_m // AR_LIKE_M  # type: ignore[operator]
+AR_M // AR_LIKE_M  # type: ignore[operator]
+
+_3 = AR_m // AR_LIKE_b  # type: ignore[var-annotated]
+AR_m // AR_LIKE_c  # type: ignore[operator]
+
+AR_b // AR_LIKE_m  # type: ignore[operator]
+AR_u // AR_LIKE_m  # type: ignore[operator]
+AR_i // AR_LIKE_m  # type: ignore[operator]
+AR_f // AR_LIKE_m  # type: ignore[operator]
+AR_c // AR_LIKE_m  # type: ignore[operator]
+
+# regression tests for https://github.com/numpy/numpy/issues/28957
+AR_c // 2  # type: ignore[operator]
+AR_c // AR_i  # type: ignore[operator]
+AR_c // AR_c  # type: ignore[operator]
+
+# Array multiplication
+
+AR_b *= AR_LIKE_u  # type: ignore[arg-type]
+AR_b *= AR_LIKE_i  # type: ignore[arg-type]
+AR_b *= AR_LIKE_f  # type: ignore[arg-type]
+AR_b *= AR_LIKE_c  # type: ignore[arg-type]
+AR_b *= AR_LIKE_m  # type: ignore[arg-type]
+
+AR_u *= AR_LIKE_f  # type: ignore[arg-type]
+AR_u *= AR_LIKE_c  # type: ignore[arg-type]
+AR_u *= AR_LIKE_m  # type: ignore[arg-type]
+
+AR_i *= AR_LIKE_f  # type: ignore[arg-type]
+AR_i *= AR_LIKE_c  # type: ignore[arg-type]
+AR_i *= AR_LIKE_m  # type: ignore[arg-type]
+
+AR_f *= AR_LIKE_c  # type: ignore[arg-type]
+AR_f *= AR_LIKE_m  # type: ignore[arg-type]
+
+# Array power
+
+AR_b **= AR_LIKE_b  # type: ignore[misc]
+AR_b **= AR_LIKE_u  # type: ignore[misc]
+AR_b **= AR_LIKE_i  # type: ignore[misc]
+AR_b **= AR_LIKE_f  # type: ignore[misc]
+AR_b **= AR_LIKE_c  # type: ignore[misc]
+
+AR_u **= AR_LIKE_f  # type: ignore[arg-type]
+AR_u **= AR_LIKE_c  # type: ignore[arg-type]
+
+AR_i **= AR_LIKE_f  # type: ignore[arg-type]
+AR_i **= AR_LIKE_c  # type: ignore[arg-type]
+
+AR_f **= AR_LIKE_c  # type: ignore[arg-type]
+
+# Scalars
+
+b_ - b_  # type: ignore[operator]
+
+dt + dt  # type: ignore[operator]
+td - dt  # type: ignore[operator]
+td % 1  # type: ignore[operator]
+td / dt  # type: ignore[operator]
+td % dt  # type: ignore[operator]
+
+-b_  # type: ignore[operator]
++b_  # type: ignore[operator]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_constructors.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_constructors.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..18e60ae064205f8d421ab107b7dc8599b833182c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_constructors.pyi
@@ -0,0 +1,34 @@
+import numpy as np
+import numpy.typing as npt
+
+a: npt.NDArray[np.float64]
+generator = (i for i in range(10))
+
+np.require(a, requirements=1)  # type: ignore[call-overload]
+np.require(a, requirements="TEST")  # type: ignore[arg-type]
+
+np.zeros("test")  # type: ignore[arg-type]
+np.zeros()  # type: ignore[call-overload]
+
+np.ones("test")  # type: ignore[arg-type]
+np.ones()  # type: ignore[call-overload]
+
+np.array(0, float, True)  # type: ignore[call-overload]
+
+np.linspace(None, "bob")  # type: ignore[call-overload]
+np.linspace(0, 2, num=10.0)  # type: ignore[call-overload]
+np.linspace(0, 2, endpoint="True")  # type: ignore[call-overload]
+np.linspace(0, 2, retstep=b"False")  # type: ignore[call-overload]
+np.linspace(0, 2, dtype=0)  # type: ignore[call-overload]
+np.linspace(0, 2, axis=None)  # type: ignore[call-overload]
+
+np.logspace(None, "bob")  # type: ignore[call-overload]
+np.logspace(0, 2, base=None)  # type: ignore[call-overload]
+
+np.geomspace(None, "bob")  # type: ignore[call-overload]
+
+np.stack(generator)  # type: ignore[call-overload]
+np.hstack({1, 2})  # type: ignore[call-overload]
+np.vstack(1)  # type: ignore[call-overload]
+
+np.array([1], like=1)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_like.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_like.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..c30e192add989e58678643e327bc8306234598fc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_like.pyi
@@ -0,0 +1,15 @@
+import numpy as np
+from numpy._typing import ArrayLike
+
+class A: ...
+
+x1: ArrayLike = (i for i in range(10))  # type: ignore[assignment]
+x2: ArrayLike = A()  # type: ignore[assignment]
+x3: ArrayLike = {1: "foo", 2: "bar"}  # type: ignore[assignment]
+
+scalar = np.int64(1)
+scalar.__array__(dtype=np.float64)  # type: ignore[call-overload]
+array = np.array([1])
+array.__array__(dtype=np.float64)  # type: ignore[call-overload]
+
+array.setfield(np.eye(1), np.int32, (0, 1))  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_pad.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_pad.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..dfaae81f5d30ffa0603880b21548beb43b70f8a6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/array_pad.pyi
@@ -0,0 +1,6 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_i8: npt.NDArray[np.int64]
+
+np.pad(AR_i8, 2, mode="bob")  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arrayprint.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arrayprint.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..bda97252f7b7da47250d08566e3f4b1616a6d81a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arrayprint.pyi
@@ -0,0 +1,15 @@
+from collections.abc import Callable
+from typing import Any
+
+import numpy as np
+import numpy.typing as npt
+
+AR: npt.NDArray[np.float64]
+func1: Callable[[Any], str]
+func2: Callable[[np.integer], str]
+
+np.array2string(AR, legacy="1.14")  # type: ignore[arg-type]
+np.array2string(AR, sign="*")  # type: ignore[arg-type]
+np.array2string(AR, floatmode="default")  # type: ignore[arg-type]
+np.array2string(AR, formatter={"A": func1})  # type: ignore[arg-type]
+np.array2string(AR, formatter={"float": func2})  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arrayterator.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arrayterator.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..1f5ab13b11899f3f5c44c763646a5d4230f7ecae
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/arrayterator.pyi
@@ -0,0 +1,14 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_i8: npt.NDArray[np.int64]
+ar_iter = np.lib.Arrayterator(AR_i8)
+
+np.lib.Arrayterator(np.int64())  # type: ignore[arg-type]
+ar_iter.shape = (10, 5)  # type: ignore[misc]
+ar_iter[None]  # type: ignore[index]
+ar_iter[None, 1]  # type: ignore[index]
+ar_iter[np.intp()]  # type: ignore[index]
+ar_iter[np.intp(), ...]  # type: ignore[index]
+ar_iter[AR_i8]  # type: ignore[index]
+ar_iter[AR_i8, :]  # type: ignore[index]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/bitwise_ops.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/bitwise_ops.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..59169cd578ca4ab54873f2dec2d8704f48a39d5a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/bitwise_ops.pyi
@@ -0,0 +1,17 @@
+import numpy as np
+
+i8 = np.int64()
+i4 = np.int32()
+u8 = np.uint64()
+b_ = np.bool()
+i = 0
+
+f8 = np.float64()
+
+b_ >> f8  # type: ignore[operator]
+i8 << f8  # type: ignore[operator]
+i | f8  # type: ignore[operator]
+i8 ^ f8  # type: ignore[operator]
+u8 & f8  # type: ignore[operator]
+~f8  # type: ignore[operator]
+# TODO: Certain mixes like i4 << u8 go to float and thus should fail
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/char.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/char.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..19d0a3e487b27cc7e73af9bc6b2d0895c031beed
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/char.pyi
@@ -0,0 +1,63 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_U: npt.NDArray[np.str_]
+AR_S: npt.NDArray[np.bytes_]
+
+np.char.equal(AR_U, AR_S)  # type: ignore[arg-type]
+np.char.not_equal(AR_U, AR_S)  # type: ignore[arg-type]
+
+np.char.greater_equal(AR_U, AR_S)  # type: ignore[arg-type]
+np.char.less_equal(AR_U, AR_S)  # type: ignore[arg-type]
+np.char.greater(AR_U, AR_S)  # type: ignore[arg-type]
+np.char.less(AR_U, AR_S)  # type: ignore[arg-type]
+
+np.char.encode(AR_S)  # type: ignore[arg-type]
+np.char.decode(AR_U)  # type: ignore[arg-type]
+
+np.char.join(AR_U, b"_")  # type: ignore[arg-type]
+np.char.join(AR_S, "_")  # type: ignore[arg-type]
+
+np.char.ljust(AR_U, 5, fillchar=b"a")  # type: ignore[arg-type]
+np.char.rjust(AR_U, 5, fillchar=b"a")  # type: ignore[arg-type]
+
+np.char.lstrip(AR_U, chars=b"a")  # type: ignore[arg-type]
+np.char.lstrip(AR_S, chars="a")  # type: ignore[arg-type]
+np.char.strip(AR_U, chars=b"a")  # type: ignore[arg-type]
+np.char.strip(AR_S, chars="a")  # type: ignore[arg-type]
+np.char.rstrip(AR_U, chars=b"a")  # type: ignore[arg-type]
+np.char.rstrip(AR_S, chars="a")  # type: ignore[arg-type]
+
+np.char.partition(AR_U, b"a")  # type: ignore[arg-type]
+np.char.partition(AR_S, "a")  # type: ignore[arg-type]
+np.char.rpartition(AR_U, b"a")  # type: ignore[arg-type]
+np.char.rpartition(AR_S, "a")  # type: ignore[arg-type]
+
+np.char.replace(AR_U, b"_", b"-")  # type: ignore[arg-type]
+np.char.replace(AR_S, "_", "-")  # type: ignore[arg-type]
+
+np.char.split(AR_U, b"_")  # type: ignore[arg-type]
+np.char.split(AR_S, "_")  # type: ignore[arg-type]
+np.char.rsplit(AR_U, b"_")  # type: ignore[arg-type]
+np.char.rsplit(AR_S, "_")  # type: ignore[arg-type]
+
+np.char.count(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.count(AR_S, "a", end=9)  # type: ignore[arg-type]
+
+np.char.endswith(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.endswith(AR_S, "a", end=9)  # type: ignore[arg-type]
+np.char.startswith(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.startswith(AR_S, "a", end=9)  # type: ignore[arg-type]
+
+np.char.find(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.find(AR_S, "a", end=9)  # type: ignore[arg-type]
+np.char.rfind(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.rfind(AR_S, "a", end=9)  # type: ignore[arg-type]
+
+np.char.index(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.index(AR_S, "a", end=9)  # type: ignore[arg-type]
+np.char.rindex(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.char.rindex(AR_S, "a", end=9)  # type: ignore[arg-type]
+
+np.char.isdecimal(AR_S)  # type: ignore[arg-type]
+np.char.isnumeric(AR_S)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/chararray.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/chararray.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..04d0954c0ad765e1eae8bd48a7d648028b29b9b7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/chararray.pyi
@@ -0,0 +1,61 @@
+from typing import Any
+
+import numpy as np
+
+AR_U: np.char.chararray[tuple[Any, ...], np.dtype[np.str_]]
+AR_S: np.char.chararray[tuple[Any, ...], np.dtype[np.bytes_]]
+
+AR_S.encode()  # type: ignore[misc]
+AR_U.decode()  # type: ignore[misc]
+
+AR_U.join(b"_")  # type: ignore[arg-type]
+AR_S.join("_")  # type: ignore[arg-type]
+
+AR_U.ljust(5, fillchar=b"a")  # type: ignore[arg-type]
+AR_U.rjust(5, fillchar=b"a")  # type: ignore[arg-type]
+
+AR_U.lstrip(chars=b"a")  # type: ignore[arg-type]
+AR_S.lstrip(chars="a")  # type: ignore[arg-type]
+AR_U.strip(chars=b"a")  # type: ignore[arg-type]
+AR_S.strip(chars="a")  # type: ignore[arg-type]
+AR_U.rstrip(chars=b"a")  # type: ignore[arg-type]
+AR_S.rstrip(chars="a")  # type: ignore[arg-type]
+
+AR_U.partition(b"a")  # type: ignore[arg-type]
+AR_S.partition("a")  # type: ignore[arg-type]
+AR_U.rpartition(b"a")  # type: ignore[arg-type]
+AR_S.rpartition("a")  # type: ignore[arg-type]
+
+AR_U.replace(b"_", b"-")  # type: ignore[arg-type]
+AR_S.replace("_", "-")  # type: ignore[arg-type]
+
+AR_U.split(b"_")  # type: ignore[arg-type]
+AR_S.split("_")  # type: ignore[arg-type]
+AR_S.split(1)  # type: ignore[arg-type]
+AR_U.rsplit(b"_")  # type: ignore[arg-type]
+AR_S.rsplit("_")  # type: ignore[arg-type]
+
+AR_U.count(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.count("a", end=9)  # type: ignore[arg-type]
+
+AR_U.endswith(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.endswith("a", end=9)  # type: ignore[arg-type]
+AR_U.startswith(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.startswith("a", end=9)  # type: ignore[arg-type]
+
+AR_U.find(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.find("a", end=9)  # type: ignore[arg-type]
+AR_U.rfind(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.rfind("a", end=9)  # type: ignore[arg-type]
+
+AR_U.index(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.index("a", end=9)  # type: ignore[arg-type]
+AR_U.rindex(b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+AR_S.rindex("a", end=9)  # type: ignore[arg-type]
+
+AR_U == AR_S  # type: ignore[operator]
+AR_U != AR_S  # type: ignore[operator]
+AR_U >= AR_S  # type: ignore[operator]
+AR_U <= AR_S  # type: ignore[operator]
+AR_U > AR_S  # type: ignore[operator]
+AR_U < AR_S  # type: ignore[operator]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/comparisons.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/comparisons.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..7babea784282d16854bbed7c935793352dc8c4d1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/comparisons.pyi
@@ -0,0 +1,27 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_i: npt.NDArray[np.int64]
+AR_f: npt.NDArray[np.float64]
+AR_c: npt.NDArray[np.complex128]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+
+AR_f > AR_m  # type: ignore[operator]
+AR_c > AR_m  # type: ignore[operator]
+
+AR_m > AR_f  # type: ignore[operator]
+AR_m > AR_c  # type: ignore[operator]
+
+AR_i > AR_M  # type: ignore[operator]
+AR_f > AR_M  # type: ignore[operator]
+AR_m > AR_M  # type: ignore[operator]
+
+AR_M > AR_i  # type: ignore[operator]
+AR_M > AR_f  # type: ignore[operator]
+AR_M > AR_m  # type: ignore[operator]
+
+AR_i > ""  # type: ignore[operator]
+AR_i > b""  # type: ignore[operator]
+"" > AR_M  # type: ignore[operator]
+b"" > AR_M  # type: ignore[operator]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/constants.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/constants.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..c9e0887c113f4cc68c364aaec565db3f38ed746e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/constants.pyi
@@ -0,0 +1,3 @@
+import numpy as np
+
+np.little_endian = np.little_endian  # type: ignore[misc]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/datasource.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/datasource.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..28932e1c62765cbdf26febd17f0ff651b9369423
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/datasource.pyi
@@ -0,0 +1,16 @@
+from pathlib import Path
+
+import numpy as np
+
+path: Path
+d1: np.lib.npyio.DataSource
+
+d1.abspath(path)  # type: ignore[arg-type]
+d1.abspath(b"...")  # type: ignore[arg-type]
+
+d1.exists(path)  # type: ignore[arg-type]
+d1.exists(b"...")  # type: ignore[arg-type]
+
+d1.open(path, "r")  # type: ignore[arg-type]
+d1.open(b"...", encoding="utf8")  # type: ignore[arg-type]
+d1.open(None, newline="/n")  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/dtype.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/dtype.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..ab9e343bd0dcc881548359b41f4297d01d49c59d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/dtype.pyi
@@ -0,0 +1,17 @@
+import numpy as np
+
+class Test1:
+    not_dtype = np.dtype(float)
+
+class Test2:
+    dtype = float
+
+np.dtype(Test1())  # type: ignore[call-overload]
+np.dtype(Test2())  # type: ignore[arg-type]
+
+np.dtype(  # type: ignore[call-overload]
+    {
+        "field1": (float, 1),
+        "field2": (int, 3),
+    }
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/einsumfunc.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/einsumfunc.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..9d6e08e4bd22e301b6a236eefab209d71ea5fdc4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/einsumfunc.pyi
@@ -0,0 +1,12 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_i: npt.NDArray[np.int64]
+AR_f: npt.NDArray[np.float64]
+AR_m: npt.NDArray[np.timedelta64]
+AR_U: npt.NDArray[np.str_]
+
+np.einsum("i,i->i", AR_i, AR_m)  # type: ignore[arg-type]
+np.einsum("i,i->i", AR_f, AR_f, dtype=np.int32)  # type: ignore[arg-type]
+np.einsum("i,i->i", AR_i, AR_i, out=AR_U)  # type: ignore[type-var]
+np.einsum("i,i->i", AR_i, AR_i, out=AR_U, casting="unsafe")  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/flatiter.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/flatiter.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..201d024c0a80104d577311e78ea8b740ffef8102
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/flatiter.pyi
@@ -0,0 +1,38 @@
+from typing import Any
+
+import numpy as np
+import numpy.typing as npt
+
+class _Index:
+    def __index__(self) -> int: ...
+
+class _MyArray:
+    def __array__(self) -> np.ndarray[tuple[int], np.dtypes.Float64DType]: ...
+
+_index: _Index
+_my_array: _MyArray
+_something: Any
+_dtype: np.dtype[np.int8]
+
+_a_nd: np.flatiter[npt.NDArray[np.float64]]
+
+###
+
+_a_nd.base = _something  # type: ignore[misc]
+_a_nd.coords = _something  # type: ignore[misc]
+_a_nd.index = _something  # type: ignore[misc]
+
+_a_nd.copy("C")  # type: ignore[call-arg]
+_a_nd.copy(order="C")  # type: ignore[call-arg]
+
+# NOTE: Contrary to `ndarray.__getitem__` its counterpart in `flatiter`
+# does not accept objects with the `__array__` or `__index__` protocols;
+# boolean indexing is just plain broken (gh-17175)
+_a_nd[np.True_]  # type: ignore[call-overload]
+_a_nd[_index]  # type: ignore[call-overload]
+_a_nd[_my_array]  # type: ignore[call-overload]
+
+# `dtype` and `copy` are no-ops in `flatiter.__array__`
+_a_nd.__array__(_dtype)  # type: ignore[arg-type]
+_a_nd.__array__(dtype=_dtype)  # type: ignore[call-arg]
+_a_nd.__array__(copy=True)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/fromnumeric.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/fromnumeric.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..e226023e8e0afeb6241fa01fe3619843516a28b2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/fromnumeric.pyi
@@ -0,0 +1,148 @@
+"""Tests for :mod:`numpy._core.fromnumeric`."""
+
+import numpy as np
+import numpy.typing as npt
+
+A = np.array(True, ndmin=2, dtype=bool)
+A.setflags(write=False)
+AR_U: npt.NDArray[np.str_]
+AR_M: npt.NDArray[np.datetime64]
+AR_f4: npt.NDArray[np.float32]
+
+a = np.bool(True)
+
+np.take(a, None)  # type: ignore[call-overload]
+np.take(a, axis=1.0)  # type: ignore[call-overload]
+np.take(A, out=1)  # type: ignore[call-overload]
+np.take(A, mode="bob")  # type: ignore[call-overload]
+
+np.reshape(a, None)  # type: ignore[call-overload]
+np.reshape(A, 1, order="bob")  # type: ignore[call-overload]
+
+np.choose(a, None)  # type: ignore[call-overload]
+np.choose(a, out=1.0)  # type: ignore[call-overload]
+np.choose(A, mode="bob")  # type: ignore[call-overload]
+
+np.repeat(a, None)  # type: ignore[call-overload]
+np.repeat(A, 1, axis=1.0)  # type: ignore[call-overload]
+
+np.swapaxes(A, None, 1)  # type: ignore[call-overload]
+np.swapaxes(A, 1, [0])  # type: ignore[call-overload]
+
+np.transpose(A, axes=1.0)  # type: ignore[call-overload]
+
+np.partition(a, None)  # type: ignore[call-overload]
+np.partition(a, 0, axis="bob")  # type: ignore[call-overload]
+np.partition(A, 0, kind="bob")  # type: ignore[call-overload]
+np.partition(A, 0, order=range(5))  # type: ignore[arg-type]
+
+np.argpartition(a, None)  # type: ignore[arg-type]
+np.argpartition(a, 0, axis="bob")  # type: ignore[arg-type]
+np.argpartition(A, 0, kind="bob")  # type: ignore[arg-type]
+np.argpartition(A, 0, order=range(5))  # type: ignore[arg-type]
+
+np.sort(A, axis="bob")  # type: ignore[call-overload]
+np.sort(A, kind="bob")  # type: ignore[call-overload]
+np.sort(A, order=range(5))  # type: ignore[arg-type]
+
+np.argsort(A, axis="bob")  # type: ignore[arg-type]
+np.argsort(A, kind="bob")  # type: ignore[arg-type]
+np.argsort(A, order=range(5))  # type: ignore[arg-type]
+
+np.argmax(A, axis="bob")  # type: ignore[call-overload]
+np.argmax(A, kind="bob")  # type: ignore[call-overload]
+np.argmax(A, out=AR_f4)  # type: ignore[type-var]
+
+np.argmin(A, axis="bob")  # type: ignore[call-overload]
+np.argmin(A, kind="bob")  # type: ignore[call-overload]
+np.argmin(A, out=AR_f4)  # type: ignore[type-var]
+
+np.searchsorted(A[0], 0, side="bob")  # type: ignore[call-overload]
+np.searchsorted(A[0], 0, sorter=1.0)  # type: ignore[call-overload]
+
+np.resize(A, 1.0)  # type: ignore[call-overload]
+
+np.squeeze(A, 1.0)  # type: ignore[call-overload]
+
+np.diagonal(A, offset=None)  # type: ignore[call-overload]
+np.diagonal(A, axis1="bob")  # type: ignore[call-overload]
+np.diagonal(A, axis2=[])  # type: ignore[call-overload]
+
+np.trace(A, offset=None)  # type: ignore[call-overload]
+np.trace(A, axis1="bob")  # type: ignore[call-overload]
+np.trace(A, axis2=[])  # type: ignore[call-overload]
+
+np.ravel(a, order="bob")  # type: ignore[call-overload]
+
+np.nonzero(0)  # type: ignore[arg-type]
+
+np.compress([True], A, axis=1.0)  # type: ignore[call-overload]
+
+np.clip(a, 1, 2, out=1)  # type: ignore[call-overload]
+
+np.sum(a, axis=1.0)  # type: ignore[call-overload]
+np.sum(a, keepdims=1.0)  # type: ignore[call-overload]
+np.sum(a, initial=[1])  # type: ignore[call-overload]
+
+np.all(a, axis=1.0)  # type: ignore[call-overload]
+np.all(a, keepdims=1.0)  # type: ignore[call-overload]
+np.all(a, out=1.0)  # type: ignore[call-overload]
+
+np.any(a, axis=1.0)  # type: ignore[call-overload]
+np.any(a, keepdims=1.0)  # type: ignore[call-overload]
+np.any(a, out=1.0)  # type: ignore[call-overload]
+
+np.cumsum(a, axis=1.0)  # type: ignore[call-overload]
+np.cumsum(a, dtype=1.0)  # type: ignore[call-overload]
+np.cumsum(a, out=1.0)  # type: ignore[call-overload]
+
+np.ptp(a, axis=1.0)  # type: ignore[call-overload]
+np.ptp(a, keepdims=1.0)  # type: ignore[call-overload]
+np.ptp(a, out=1.0)  # type: ignore[call-overload]
+
+np.amax(a, axis=1.0)  # type: ignore[call-overload]
+np.amax(a, keepdims=1.0)  # type: ignore[call-overload]
+np.amax(a, out=1.0)  # type: ignore[call-overload]
+np.amax(a, initial=[1.0])  # type: ignore[call-overload]
+np.amax(a, where=[1.0])  # type: ignore[arg-type]
+
+np.amin(a, axis=1.0)  # type: ignore[call-overload]
+np.amin(a, keepdims=1.0)  # type: ignore[call-overload]
+np.amin(a, out=1.0)  # type: ignore[call-overload]
+np.amin(a, initial=[1.0])  # type: ignore[call-overload]
+np.amin(a, where=[1.0])  # type: ignore[arg-type]
+
+np.prod(a, axis=1.0)  # type: ignore[call-overload]
+np.prod(a, out=False)  # type: ignore[call-overload]
+np.prod(a, keepdims=1.0)  # type: ignore[call-overload]
+np.prod(a, initial=int)  # type: ignore[call-overload]
+np.prod(a, where=1.0)  # type: ignore[call-overload]
+np.prod(AR_U)  # type: ignore[arg-type]
+
+np.cumprod(a, axis=1.0)  # type: ignore[call-overload]
+np.cumprod(a, out=False)  # type: ignore[call-overload]
+np.cumprod(AR_U)  # type: ignore[arg-type]
+
+np.size(a, axis=1.0)  # type: ignore[arg-type]
+
+np.around(a, decimals=1.0)  # type: ignore[call-overload]
+np.around(a, out=type)  # type: ignore[call-overload]
+np.around(AR_U)  # type: ignore[arg-type]
+
+np.mean(a, axis=1.0)  # type: ignore[call-overload]
+np.mean(a, out=False)  # type: ignore[call-overload]
+np.mean(a, keepdims=1.0)  # type: ignore[call-overload]
+np.mean(AR_U)  # type: ignore[arg-type]
+np.mean(AR_M)  # type: ignore[arg-type]
+
+np.std(a, axis=1.0)  # type: ignore[call-overload]
+np.std(a, out=False)  # type: ignore[call-overload]
+np.std(a, ddof="test")  # type: ignore[call-overload]
+np.std(a, keepdims=1.0)  # type: ignore[call-overload]
+np.std(AR_U)  # type: ignore[arg-type]
+
+np.var(a, axis=1.0)  # type: ignore[call-overload]
+np.var(a, out=False)  # type: ignore[call-overload]
+np.var(a, ddof="test")  # type: ignore[call-overload]
+np.var(a, keepdims=1.0)  # type: ignore[call-overload]
+np.var(AR_U)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/histograms.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/histograms.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..9f2d799fe4e609fdf67fad1ec221566c52eddabd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/histograms.pyi
@@ -0,0 +1,12 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+
+np.histogram_bin_edges(AR_i8, range=(0, 1, 2))  # type: ignore[arg-type]
+
+np.histogram(AR_i8, range=(0, 1, 2))  # type: ignore[arg-type]
+
+np.histogramdd(AR_i8, range=(0, 1))  # type: ignore[arg-type]
+np.histogramdd(AR_i8, range=[(0, 1, 2)])  # type: ignore[list-item]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/index_tricks.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/index_tricks.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..db5e0b921b71327944f888763f9cddaee77d70d6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/index_tricks.pyi
@@ -0,0 +1,14 @@
+import numpy as np
+
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+
+np.ndindex([1, 2, 3])  # type: ignore[call-overload]
+np.unravel_index(AR_LIKE_f, (1, 2, 3))  # type: ignore[arg-type]
+np.ravel_multi_index(AR_LIKE_i, (1, 2, 3), mode="bob")  # type: ignore[call-overload]
+np.mgrid[1]  # type: ignore[index]
+np.mgrid[...]  # type: ignore[index]
+np.ogrid[1]  # type: ignore[index]
+np.ogrid[...]  # type: ignore[index]
+np.fill_diagonal(AR_LIKE_f, 2)  # type: ignore[arg-type]
+np.diag_indices(1.0)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_function_base.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_function_base.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..2b7b4970269aa55eb761a6f41d4e9c435ab58308
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_function_base.pyi
@@ -0,0 +1,60 @@
+from typing import Any
+
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+AR_O: npt.NDArray[np.object_]
+AR_b_list: list[npt.NDArray[np.bool]]
+
+def fn_none_i(a: None, /) -> npt.NDArray[Any]: ...
+def fn_ar_i(a: npt.NDArray[np.float64], posarg: int, /) -> npt.NDArray[Any]: ...
+
+np.average(AR_m)  # type: ignore[type-var]
+np.select(1, [AR_f8])  # type: ignore[call-overload]
+np.angle(AR_m)  # type: ignore[type-var]
+np.unwrap(AR_m)  # type: ignore[type-var]
+np.unwrap(AR_c16)  # type: ignore[type-var]
+np.trim_zeros(1)  # type: ignore[arg-type]
+np.place(1, [True], 1.5)  # type: ignore[arg-type]
+np.vectorize(1)  # type: ignore[arg-type]
+np.place(AR_f8, slice(None), 5)  # type: ignore[arg-type]
+
+np.piecewise(AR_f8, True, [fn_ar_i], "wrong")  # type: ignore[call-overload]
+np.piecewise(AR_f8, AR_b_list, [fn_none_i])  # type: ignore[call-overload]
+np.piecewise(AR_f8, AR_b_list, [fn_ar_i])  # type: ignore[call-overload]
+np.piecewise(AR_f8, AR_b_list, [fn_ar_i], 3.14)  # type: ignore[call-overload]
+np.piecewise(AR_f8, AR_b_list, [fn_ar_i], 42, None)  # type: ignore[call-overload]
+np.piecewise(AR_f8, AR_b_list, [fn_ar_i], 42, _=None)  # type: ignore[list-item]
+
+np.interp(AR_f8, AR_c16, AR_f8)  # type: ignore[arg-type]
+np.interp(AR_c16, AR_f8, AR_f8)  # type: ignore[arg-type]
+np.interp(AR_f8, AR_f8, AR_f8, period=AR_c16)  # type: ignore[call-overload]
+np.interp(AR_f8, AR_f8, AR_O)  # type: ignore[arg-type]
+
+np.cov(AR_m)  # type: ignore[type-var]
+np.cov(AR_O)  # type: ignore[type-var]
+np.corrcoef(AR_m)  # type: ignore[type-var]
+np.corrcoef(AR_O)  # type: ignore[type-var]
+np.corrcoef(AR_f8, bias=True)  # type: ignore[call-overload]
+np.corrcoef(AR_f8, ddof=2)  # type: ignore[call-overload]
+np.blackman(1j)  # type: ignore[arg-type]
+np.bartlett(1j)  # type: ignore[arg-type]
+np.hanning(1j)  # type: ignore[arg-type]
+np.hamming(1j)  # type: ignore[arg-type]
+np.hamming(AR_c16)  # type: ignore[arg-type]
+np.kaiser(1j, 1)  # type: ignore[arg-type]
+np.sinc(AR_O)  # type: ignore[type-var]
+np.median(AR_M)  # type: ignore[type-var]
+
+np.percentile(AR_f8, 50j)  # type: ignore[call-overload]
+np.percentile(AR_f8, 50, interpolation="bob")  # type: ignore[call-overload]
+np.quantile(AR_f8, 0.5j)  # type: ignore[call-overload]
+np.quantile(AR_f8, 0.5, interpolation="bob")  # type: ignore[call-overload]
+np.meshgrid(AR_f8, AR_f8, indexing="bob")  # type: ignore[call-overload]
+np.delete(AR_f8, AR_f8)  # type: ignore[arg-type]
+np.insert(AR_f8, AR_f8, 1.5)  # type: ignore[arg-type]
+np.digitize(AR_f8, 1j)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_polynomial.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_polynomial.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..0a79662f90e10ddaceaf009a90f90aebe376f755
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_polynomial.pyi
@@ -0,0 +1,29 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+AR_O: npt.NDArray[np.object_]
+AR_U: npt.NDArray[np.str_]
+
+poly_obj: np.poly1d
+
+np.polymul(AR_f8, AR_U)  # type: ignore[arg-type]
+np.polydiv(AR_f8, AR_U)  # type: ignore[arg-type]
+
+5**poly_obj  # type: ignore[operator]
+
+np.polyint(AR_U)  # type: ignore[arg-type]
+np.polyint(AR_f8, m=1j)  # type: ignore[call-overload]
+
+np.polyder(AR_U)  # type: ignore[arg-type]
+np.polyder(AR_f8, m=1j)  # type: ignore[call-overload]
+
+np.polyfit(AR_O, AR_f8, 1)  # type: ignore[arg-type]
+np.polyfit(AR_f8, AR_f8, 1, rcond=1j)  # type: ignore[call-overload]
+np.polyfit(AR_f8, AR_f8, 1, w=AR_c16)  # type: ignore[arg-type]
+np.polyfit(AR_f8, AR_f8, 1, cov="bob")  # type: ignore[call-overload]
+
+np.polyval(AR_f8, AR_U)  # type: ignore[arg-type]
+np.polyadd(AR_f8, AR_U)  # type: ignore[arg-type]
+np.polysub(AR_f8, AR_U)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_utils.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_utils.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..4766506097907802cd38b6f501eb961c5de73394
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_utils.pyi
@@ -0,0 +1,3 @@
+import numpy.lib.array_utils as array_utils
+
+array_utils.byte_bounds(1)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_version.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_version.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..e0110499aecd3d5e1b1017820aaf3fef9959d30d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/lib_version.pyi
@@ -0,0 +1,6 @@
+from numpy.lib import NumpyVersion
+
+version: NumpyVersion
+
+NumpyVersion(b"1.8.0")  # type: ignore[arg-type]
+version >= b"1.8.0"  # type: ignore[operator]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/linalg.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/linalg.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..890d7145a505a7d54de306f84993e4c6429629fb
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/linalg.pyi
@@ -0,0 +1,52 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_O: npt.NDArray[np.object_]
+AR_M: npt.NDArray[np.datetime64]
+
+np.linalg.tensorsolve(AR_O, AR_O)  # type: ignore[arg-type]
+
+np.linalg.solve(AR_O, AR_O)  # type: ignore[arg-type]
+
+np.linalg.tensorinv(AR_O)  # type: ignore[arg-type]
+
+np.linalg.inv(AR_O)  # type: ignore[arg-type]
+
+np.linalg.matrix_power(AR_M, 5)  # type: ignore[arg-type]
+
+np.linalg.cholesky(AR_O)  # type: ignore[arg-type]
+
+np.linalg.qr(AR_O)  # type: ignore[arg-type]
+np.linalg.qr(AR_f8, mode="bob")  # type: ignore[call-overload]
+
+np.linalg.eigvals(AR_O)  # type: ignore[arg-type]
+
+np.linalg.eigvalsh(AR_O)  # type: ignore[arg-type]
+np.linalg.eigvalsh(AR_O, UPLO="bob")  # type: ignore[call-overload]
+
+np.linalg.eig(AR_O)  # type: ignore[arg-type]
+
+np.linalg.eigh(AR_O)  # type: ignore[arg-type]
+np.linalg.eigh(AR_O, UPLO="bob")  # type: ignore[call-overload]
+
+np.linalg.svd(AR_O)  # type: ignore[arg-type]
+
+np.linalg.svdvals(AR_O)  # type: ignore[arg-type]
+np.linalg.svdvals(AR_M)  # type: ignore[arg-type]
+np.linalg.svdvals(x=AR_f8)  # type: ignore[call-overload]
+
+np.linalg.cond(AR_O)  # type: ignore[arg-type]
+np.linalg.cond(AR_f8, p="bob")  # type: ignore[arg-type]
+
+np.linalg.matrix_rank(AR_O)  # type: ignore[arg-type]
+
+np.linalg.pinv(AR_O)  # type: ignore[arg-type]
+
+np.linalg.slogdet(AR_O)  # type: ignore[arg-type]
+
+np.linalg.det(AR_O)  # type: ignore[arg-type]
+
+np.linalg.norm(AR_f8, ord="bob")  # type: ignore[call-overload]
+
+np.linalg.multi_dot([AR_M])  # type: ignore[list-item]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ma.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ma.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..05f0611a8a33e989da94af3dc2e47644b91a9f8e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ma.pyi
@@ -0,0 +1,155 @@
+from typing import TypeAlias, TypeVar
+
+import numpy as np
+import numpy.typing as npt
+from numpy._typing import _AnyShape
+
+_ScalarT = TypeVar("_ScalarT", bound=np.generic)
+MaskedArray: TypeAlias = np.ma.MaskedArray[_AnyShape, np.dtype[_ScalarT]]
+
+MAR_1d_f8: np.ma.MaskedArray[tuple[int], np.dtype[np.float64]]
+MAR_b: MaskedArray[np.bool]
+MAR_c: MaskedArray[np.complex128]
+MAR_td64: MaskedArray[np.timedelta64]
+
+AR_b: npt.NDArray[np.bool]
+
+MAR_1d_f8.shape = (3, 1)  # type: ignore[assignment]
+MAR_1d_f8.dtype = np.bool  # type: ignore[assignment]
+
+def invalid_recordmask_setter() -> None:
+    # We make an inner function for this one to avoid the
+    # `NoReturn` causing an early exit for type checkers.
+    MAR_1d_f8.recordmask = [True]  # type: ignore[assignment]
+
+np.ma.min(MAR_1d_f8, axis=1.0)  # type: ignore[call-overload]
+np.ma.min(MAR_1d_f8, keepdims=1.0)  # type: ignore[call-overload]
+np.ma.min(MAR_1d_f8, out=1.0)  # type: ignore[call-overload]
+np.ma.min(MAR_1d_f8, fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+MAR_1d_f8.min(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.min(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.min(out=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.min(fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+np.ma.max(MAR_1d_f8, axis=1.0)  # type: ignore[call-overload]
+np.ma.max(MAR_1d_f8, keepdims=1.0)  # type: ignore[call-overload]
+np.ma.max(MAR_1d_f8, out=1.0)  # type: ignore[call-overload]
+np.ma.max(MAR_1d_f8, fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+MAR_1d_f8.max(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.max(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.max(out=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.max(fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+np.ma.ptp(MAR_1d_f8, axis=1.0)  # type: ignore[call-overload]
+np.ma.ptp(MAR_1d_f8, keepdims=1.0)  # type: ignore[call-overload]
+np.ma.ptp(MAR_1d_f8, out=1.0)  # type: ignore[call-overload]
+np.ma.ptp(MAR_1d_f8, fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+MAR_1d_f8.ptp(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.ptp(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.ptp(out=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.ptp(fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+MAR_1d_f8.argmin(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.argmin(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.argmin(out=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.argmin(fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+np.ma.argmin(MAR_1d_f8, axis=1.0)  # type: ignore[call-overload]
+np.ma.argmin(MAR_1d_f8, axis=(1,))  # type: ignore[call-overload]
+np.ma.argmin(MAR_1d_f8, keepdims=1.0)  # type: ignore[call-overload]
+np.ma.argmin(MAR_1d_f8, out=1.0)  # type: ignore[call-overload]
+np.ma.argmin(MAR_1d_f8, fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+MAR_1d_f8.argmax(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.argmax(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.argmax(out=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.argmax(fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+np.ma.argmax(MAR_1d_f8, axis=1.0)  # type: ignore[call-overload]
+np.ma.argmax(MAR_1d_f8, axis=(0,))  # type: ignore[call-overload]
+np.ma.argmax(MAR_1d_f8, keepdims=1.0)  # type: ignore[call-overload]
+np.ma.argmax(MAR_1d_f8, out=1.0)  # type: ignore[call-overload]
+np.ma.argmax(MAR_1d_f8, fill_value=lambda x: 27)  # type: ignore[call-overload]
+
+MAR_1d_f8.all(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.all(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.all(out=1.0)  # type: ignore[call-overload]
+
+MAR_1d_f8.any(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.any(keepdims=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.any(out=1.0)  # type: ignore[call-overload]
+
+MAR_1d_f8.sort(axis=(0, 1))  # type: ignore[arg-type]
+MAR_1d_f8.sort(axis=None)  # type: ignore[arg-type]
+MAR_1d_f8.sort(kind="cabbage")  # type: ignore[arg-type]
+MAR_1d_f8.sort(order=lambda: "cabbage")  # type: ignore[arg-type]
+MAR_1d_f8.sort(endwith="cabbage")  # type: ignore[arg-type]
+MAR_1d_f8.sort(fill_value=lambda: "cabbage")  # type: ignore[arg-type]
+MAR_1d_f8.sort(stable="cabbage")  # type: ignore[arg-type]
+MAR_1d_f8.sort(stable=True)  # type: ignore[arg-type]
+
+MAR_1d_f8.take(axis=1.0)  # type: ignore[call-overload]
+MAR_1d_f8.take(out=1)  # type: ignore[call-overload]
+MAR_1d_f8.take(mode="bob")  # type: ignore[call-overload]
+
+np.ma.take(None)  # type: ignore[call-overload]
+np.ma.take(axis=1.0)  # type: ignore[call-overload]
+np.ma.take(out=1)  # type: ignore[call-overload]
+np.ma.take(mode="bob")  # type: ignore[call-overload]
+
+MAR_1d_f8.partition(["cabbage"])  # type: ignore[arg-type]
+MAR_1d_f8.partition(axis=(0, 1))  # type: ignore[arg-type, call-arg]
+MAR_1d_f8.partition(kind="cabbage")  # type: ignore[arg-type, call-arg]
+MAR_1d_f8.partition(order=lambda: "cabbage")  # type: ignore[arg-type, call-arg]
+MAR_1d_f8.partition(AR_b)  # type: ignore[arg-type]
+
+MAR_1d_f8.argpartition(["cabbage"])  # type: ignore[arg-type]
+MAR_1d_f8.argpartition(axis=(0, 1))  # type: ignore[arg-type, call-arg]
+MAR_1d_f8.argpartition(kind="cabbage")  # type: ignore[arg-type, call-arg]
+MAR_1d_f8.argpartition(order=lambda: "cabbage")  # type: ignore[arg-type, call-arg]
+MAR_1d_f8.argpartition(AR_b)  # type: ignore[arg-type]
+
+np.ma.ndim(lambda: "lambda")  # type: ignore[arg-type]
+
+np.ma.size(AR_b, axis="0")  # type: ignore[arg-type]
+
+MAR_1d_f8 >= (lambda x: "mango")  # type: ignore[operator]
+MAR_1d_f8 > (lambda x: "mango")  # type: ignore[operator]
+MAR_1d_f8 <= (lambda x: "mango")  # type: ignore[operator]
+MAR_1d_f8 < (lambda x: "mango")  # type: ignore[operator]
+
+MAR_1d_f8.count(axis=0.)  # type: ignore[call-overload]
+
+np.ma.count(MAR_1d_f8, axis=0.)  # type: ignore[call-overload]
+
+MAR_1d_f8.put(4, 999, mode="flip")  # type: ignore[arg-type]
+
+np.ma.put(MAR_1d_f8, 4, 999, mode="flip")  # type: ignore[arg-type]
+
+np.ma.put([1, 1, 3], 0, 999)  # type: ignore[arg-type]
+
+np.ma.compressed(lambda: "compress me")  # type: ignore[call-overload]
+
+np.ma.allequal(MAR_1d_f8, [1, 2, 3], fill_value=1.5)  # type: ignore[arg-type]
+
+np.ma.allclose(MAR_1d_f8, [1, 2, 3], masked_equal=4.5)  # type: ignore[arg-type]
+np.ma.allclose(MAR_1d_f8, [1, 2, 3], rtol=".4")  # type: ignore[arg-type]
+np.ma.allclose(MAR_1d_f8, [1, 2, 3], atol=".5")  # type: ignore[arg-type]
+
+MAR_1d_f8.__setmask__("mask")  # type: ignore[arg-type]
+
+MAR_b *= 2  # type: ignore[arg-type]
+MAR_c //= 2  # type: ignore[misc]
+MAR_td64 **= 2  # type: ignore[misc]
+
+MAR_1d_f8.swapaxes(axis1=1, axis2=0)  # type: ignore[call-arg]
+
+MAR_1d_f8.argsort(axis=(1, 0))  # type: ignore[arg-type]
+
+np.ma.MaskedArray(np.array([1, 2, 3]), keep_mask="yes")  # type: ignore[call-overload]
+np.ma.MaskedArray(np.array([1, 2, 3]), subok=None)  # type: ignore[call-overload]
+np.ma.MaskedArray(np.array([1, 2, 3]), ndim=None)  # type: ignore[call-overload]
+np.ma.MaskedArray(np.array([1, 2, 3]), order="Corinthian")  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/memmap.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/memmap.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..7cd985ec1323356e40fef528d42a5c0bb4c3b9ff
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/memmap.pyi
@@ -0,0 +1,5 @@
+import numpy as np
+
+with open("file.txt", "r") as f:
+    np.memmap(f)  # type: ignore[call-overload]
+np.memmap("test.txt", shape=[10, 5])  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/modules.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/modules.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..2678cd5e95c963f23f522ff7f504dd22609a5f6d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/modules.pyi
@@ -0,0 +1,17 @@
+import numpy as np
+
+np.testing.bob  # type: ignore[attr-defined]
+np.bob  # type: ignore[attr-defined]
+
+# Stdlib modules in the namespace by accident
+np.warnings  # type: ignore[attr-defined]
+np.sys  # type: ignore[attr-defined]
+np.os  # type: ignore[attr-defined]
+np.math  # type: ignore[attr-defined]
+
+# Public sub-modules that are not imported to their parent module by default;
+# e.g. one must first execute `import numpy.lib.recfunctions`
+np.lib.recfunctions  # type: ignore[attr-defined]
+
+np.__deprecated_attrs__  # type: ignore[attr-defined]
+np.__expired_functions__  # type: ignore[attr-defined]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/multiarray.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/multiarray.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..66cd6f7beac37f5e3801602658b290f2a0876454
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/multiarray.pyi
@@ -0,0 +1,52 @@
+import numpy as np
+import numpy.typing as npt
+
+i8: np.int64
+
+AR_b: npt.NDArray[np.bool]
+AR_u1: npt.NDArray[np.uint8]
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+AR_M: npt.NDArray[np.datetime64]
+
+M: np.datetime64
+
+AR_LIKE_f: list[float]
+
+def func(a: int) -> None: ...
+
+np.where(AR_b, 1)  # type: ignore[call-overload]
+
+np.can_cast(AR_f8, 1)  # type: ignore[arg-type]
+
+np.vdot(AR_M, AR_M)  # type: ignore[arg-type]
+
+np.copyto(AR_LIKE_f, AR_f8)  # type: ignore[arg-type]
+
+np.putmask(AR_LIKE_f, [True, True, False], 1.5)  # type: ignore[arg-type]
+
+np.packbits(AR_f8)  # type: ignore[arg-type]
+np.packbits(AR_u1, bitorder=">")  # type: ignore[call-overload]
+
+np.unpackbits(AR_i8)  # type: ignore[arg-type]
+np.unpackbits(AR_u1, bitorder=">")  # type: ignore[call-overload]
+
+np.shares_memory(1, 1, max_work=i8)  # type: ignore[arg-type]
+np.may_share_memory(1, 1, max_work=i8)  # type: ignore[arg-type]
+
+np.arange(stop=10)  # type: ignore[call-overload]
+
+np.datetime_data(int)  # type: ignore[arg-type]
+
+np.busday_offset("2012", 10)  # type: ignore[call-overload]
+
+np.datetime_as_string("2012")  # type: ignore[call-overload]
+
+np.char.compare_chararrays("a", b"a", "==", False)  # type: ignore[call-overload]
+
+np.nested_iters([AR_i8, AR_i8])  # type: ignore[call-arg]
+np.nested_iters([AR_i8, AR_i8], 0)  # type: ignore[arg-type]
+np.nested_iters([AR_i8, AR_i8], [0])  # type: ignore[list-item]
+np.nested_iters([AR_i8, AR_i8], [[0], [1]], flags=["test"])  # type: ignore[list-item]
+np.nested_iters([AR_i8, AR_i8], [[0], [1]], op_flags=[["test"]])  # type: ignore[list-item]
+np.nested_iters([AR_i8, AR_i8], [[0], [1]], buffersize=1.0)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ndarray.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ndarray.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..680d288a43db766fec6e07385fbea31f1ba64bb0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ndarray.pyi
@@ -0,0 +1,11 @@
+import numpy as np
+
+# Ban setting dtype since mutating the type of the array in place
+# makes having ndarray be generic over dtype impossible. Generally
+# users should use `ndarray.view` in this situation anyway. See
+#
+# https://github.com/numpy/numpy-stubs/issues/7
+#
+# for more context.
+float_array = np.array([1.0])
+float_array.dtype = np.bool  # type: ignore[assignment, misc]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ndarray_misc.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ndarray_misc.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..845d36c5056025c790e8aa3cb92ce43c35d06179
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ndarray_misc.pyi
@@ -0,0 +1,49 @@
+"""
+Tests for miscellaneous (non-magic) ``np.ndarray``/``np.generic`` methods.
+
+More extensive tests are performed for the methods'
+function-based counterpart in `../from_numeric.py`.
+
+"""
+from typing import Never
+
+import numpy as np
+import numpy.typing as npt
+
+f8: np.float64
+AR_f8: npt.NDArray[np.float64]
+AR_M: npt.NDArray[np.datetime64]
+AR_b: npt.NDArray[np.bool]
+
+ctypes_obj = AR_f8.ctypes
+
+f8.argpartition(0)  # type: ignore[attr-defined]
+f8.partition(0)  # type: ignore[attr-defined]
+f8.dot(1)  # type: ignore[attr-defined]
+
+# NOTE: The following functions retur `Never`, causing mypy to stop analysis at that
+# point, which we circumvent by wrapping them in a function.
+
+def f8_diagonal(x: np.float64) -> Never:
+    return x.diagonal()  # type: ignore[misc]
+
+def f8_nonzero(x: np.float64) -> Never:
+    return x.nonzero()  # type: ignore[misc]
+
+def f8_setfield(x: np.float64) -> Never:
+    return x.setfield(2, np.float64)  # type: ignore[misc]
+
+def f8_sort(x: np.float64) -> Never:
+    return x.sort()  # type: ignore[misc]
+
+def f8_trace(x: np.float64) -> Never:
+    return x.trace()  # type: ignore[misc]
+
+AR_M.__complex__()  # type: ignore[misc]
+AR_b.__index__()  # type: ignore[misc]
+
+AR_f8[1.5]  # type: ignore[call-overload]
+AR_f8["field_a"]  # type: ignore[call-overload]
+AR_f8[["field_a", "field_b"]]  # type: ignore[index]
+
+AR_f8.__array_finalize__(object())  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/nditer.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/nditer.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..fdd0285269fca16c8cf954de0c2d1c13774ff0ba
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/nditer.pyi
@@ -0,0 +1,8 @@
+import numpy as np
+
+class Test(np.nditer): ...  # type: ignore[misc]
+
+np.nditer([0, 1], flags=["test"])  # type: ignore[list-item]
+np.nditer([0, 1], op_flags=[["test"]])  # type: ignore[list-item]
+np.nditer([0, 1], itershape=(1.0,))  # type: ignore[arg-type]
+np.nditer([0, 1], buffersize=1.0)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/nested_sequence.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/nested_sequence.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..6c49d5c84060272f6cfc152db916f03d3f1196d3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/nested_sequence.pyi
@@ -0,0 +1,17 @@
+from collections.abc import Sequence
+
+from numpy._typing import _NestedSequence
+
+a: Sequence[float]
+b: list[complex]
+c: tuple[str, ...]
+d: int
+e: str
+
+def func(a: _NestedSequence[int]) -> None: ...
+
+reveal_type(func(a))  # type: ignore[arg-type, misc]
+reveal_type(func(b))  # type: ignore[arg-type, misc]
+reveal_type(func(c))  # type: ignore[arg-type, misc]
+reveal_type(func(d))  # type: ignore[arg-type, misc]
+reveal_type(func(e))  # type: ignore[arg-type, misc]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/npyio.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/npyio.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..591457b842f61ea61cd1f8d507d21ce350d9eece
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/npyio.pyi
@@ -0,0 +1,24 @@
+import pathlib
+from typing import IO
+
+import numpy as np
+import numpy.typing as npt
+
+str_path: str
+bytes_path: bytes
+pathlib_path: pathlib.Path
+str_file: IO[str]
+AR_i8: npt.NDArray[np.int64]
+
+np.load(str_file)  # type: ignore[arg-type]
+
+np.save(bytes_path, AR_i8)  # type: ignore[arg-type]
+np.save(str_path, AR_i8, fix_imports=True)  # type: ignore[call-arg]
+
+np.savez(bytes_path, AR_i8)  # type: ignore[arg-type]
+
+np.savez_compressed(bytes_path, AR_i8)  # type: ignore[arg-type]
+
+np.loadtxt(bytes_path)  # type: ignore[arg-type]
+
+np.fromregex(bytes_path, ".", np.int64)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/numerictypes.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/numerictypes.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..cbb910217039a68ee7a170743fcbde63f5a1fc0b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/numerictypes.pyi
@@ -0,0 +1,5 @@
+import numpy as np
+
+np.isdtype(1, np.int64)  # type: ignore[arg-type]
+
+np.issubdtype(1, np.int64)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/random.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/random.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..be63d1d275791a4be7f1b2e87460e64e0485f77b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/random.pyi
@@ -0,0 +1,62 @@
+import numpy as np
+import numpy.typing as npt
+
+SEED_FLOAT: float = 457.3
+SEED_ARR_FLOAT: npt.NDArray[np.float64] = np.array([1.0, 2, 3, 4])
+SEED_ARRLIKE_FLOAT: list[float] = [1.0, 2.0, 3.0, 4.0]
+SEED_SEED_SEQ: np.random.SeedSequence = np.random.SeedSequence(0)
+SEED_STR: str = "String seeding not allowed"
+
+# default rng
+np.random.default_rng(SEED_FLOAT)  # type: ignore[arg-type]
+np.random.default_rng(SEED_ARR_FLOAT)  # type: ignore[arg-type]
+np.random.default_rng(SEED_ARRLIKE_FLOAT)  # type: ignore[arg-type]
+np.random.default_rng(SEED_STR)  # type: ignore[arg-type]
+
+# Seed Sequence
+np.random.SeedSequence(SEED_FLOAT)  # type: ignore[arg-type]
+np.random.SeedSequence(SEED_ARR_FLOAT)  # type: ignore[arg-type]
+np.random.SeedSequence(SEED_ARRLIKE_FLOAT)  # type: ignore[arg-type]
+np.random.SeedSequence(SEED_SEED_SEQ)  # type: ignore[arg-type]
+np.random.SeedSequence(SEED_STR)  # type: ignore[arg-type]
+
+seed_seq: np.random.bit_generator.SeedSequence = np.random.SeedSequence()
+seed_seq.spawn(11.5)  # type: ignore[arg-type]
+seed_seq.generate_state(3.14)  # type: ignore[arg-type]
+seed_seq.generate_state(3, np.uint8)  # type: ignore[arg-type]
+seed_seq.generate_state(3, "uint8")  # type: ignore[arg-type]
+seed_seq.generate_state(3, "u1")  # type: ignore[arg-type]
+seed_seq.generate_state(3, np.uint16)  # type: ignore[arg-type]
+seed_seq.generate_state(3, "uint16")  # type: ignore[arg-type]
+seed_seq.generate_state(3, "u2")  # type: ignore[arg-type]
+seed_seq.generate_state(3, np.int32)  # type: ignore[arg-type]
+seed_seq.generate_state(3, "int32")  # type: ignore[arg-type]
+seed_seq.generate_state(3, "i4")  # type: ignore[arg-type]
+
+# Bit Generators
+np.random.MT19937(SEED_FLOAT)  # type: ignore[arg-type]
+np.random.MT19937(SEED_ARR_FLOAT)  # type: ignore[arg-type]
+np.random.MT19937(SEED_ARRLIKE_FLOAT)  # type: ignore[arg-type]
+np.random.MT19937(SEED_STR)  # type: ignore[arg-type]
+
+np.random.PCG64(SEED_FLOAT)  # type: ignore[arg-type]
+np.random.PCG64(SEED_ARR_FLOAT)  # type: ignore[arg-type]
+np.random.PCG64(SEED_ARRLIKE_FLOAT)  # type: ignore[arg-type]
+np.random.PCG64(SEED_STR)  # type: ignore[arg-type]
+
+np.random.Philox(SEED_FLOAT)  # type: ignore[arg-type]
+np.random.Philox(SEED_ARR_FLOAT)  # type: ignore[arg-type]
+np.random.Philox(SEED_ARRLIKE_FLOAT)  # type: ignore[arg-type]
+np.random.Philox(SEED_STR)  # type: ignore[arg-type]
+
+np.random.SFC64(SEED_FLOAT)  # type: ignore[arg-type]
+np.random.SFC64(SEED_ARR_FLOAT)  # type: ignore[arg-type]
+np.random.SFC64(SEED_ARRLIKE_FLOAT)  # type: ignore[arg-type]
+np.random.SFC64(SEED_STR)  # type: ignore[arg-type]
+
+# Generator
+np.random.Generator(None)  # type: ignore[arg-type]
+np.random.Generator(12333283902830213)  # type: ignore[arg-type]
+np.random.Generator("OxFEEDF00D")  # type: ignore[arg-type]
+np.random.Generator([123, 234])  # type: ignore[arg-type]
+np.random.Generator(np.array([123, 234], dtype="u4"))  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/rec.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/rec.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..a6022b21ae10e9c4d2e19c91c1295df02524d0ce
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/rec.pyi
@@ -0,0 +1,17 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_i8: npt.NDArray[np.int64]
+
+np.rec.fromarrays(1)  # type: ignore[call-overload]
+np.rec.fromarrays([1, 2, 3], dtype=[("f8", "f8")], formats=["f8", "f8"])  # type: ignore[call-overload]
+
+np.rec.fromrecords(AR_i8)  # type: ignore[arg-type]
+np.rec.fromrecords([(1.5,)], dtype=[("f8", "f8")], formats=["f8", "f8"])  # type: ignore[call-overload]
+
+np.rec.fromstring("string", dtype=[("f8", "f8")])  # type: ignore[call-overload]
+np.rec.fromstring(b"bytes")  # type: ignore[call-overload]
+np.rec.fromstring(b"(1.5,)", dtype=[("f8", "f8")], formats=["f8", "f8"])  # type: ignore[call-overload]
+
+with open("test", "r") as f:
+    np.rec.fromfile(f, dtype=[("f8", "f8")])  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/scalars.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/scalars.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..7d370341badccbafbe6c0e8efde7668c3f897c39
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/scalars.pyi
@@ -0,0 +1,86 @@
+import numpy as np
+
+f2: np.float16
+f8: np.float64
+c8: np.complex64
+
+# Construction
+
+np.float32(3j)  # type: ignore[arg-type]
+
+# Technically the following examples are valid NumPy code. But they
+# are not considered a best practice, and people who wish to use the
+# stubs should instead do
+#
+# np.array([1.0, 0.0, 0.0], dtype=np.float32)
+# np.array([], dtype=np.complex64)
+#
+# See e.g. the discussion on the mailing list
+#
+# https://mail.python.org/pipermail/numpy-discussion/2020-April/080566.html
+#
+# and the issue
+#
+# https://github.com/numpy/numpy-stubs/issues/41
+#
+# for more context.
+np.float32([1.0, 0.0, 0.0])  # type: ignore[arg-type]
+np.complex64([])  # type: ignore[call-overload]
+
+# TODO: protocols (can't check for non-existent protocols w/ __getattr__)
+
+np.datetime64(0)  # type: ignore[call-overload]
+
+class A:
+    def __float__(self) -> float: ...
+
+np.int8(A())  # type: ignore[arg-type]
+np.int16(A())  # type: ignore[arg-type]
+np.int32(A())  # type: ignore[arg-type]
+np.int64(A())  # type: ignore[arg-type]
+np.uint8(A())  # type: ignore[arg-type]
+np.uint16(A())  # type: ignore[arg-type]
+np.uint32(A())  # type: ignore[arg-type]
+np.uint64(A())  # type: ignore[arg-type]
+
+np.void("test")  # type: ignore[call-overload]
+np.void("test", dtype=None)  # type: ignore[call-overload]
+
+np.generic(1)  # type: ignore[abstract]
+np.number(1)  # type: ignore[abstract]
+np.integer(1)  # type: ignore[abstract]
+np.inexact(1)  # type: ignore[abstract]
+np.character("test")  # type: ignore[abstract]
+np.flexible(b"test")  # type: ignore[abstract]
+
+np.float64(value=0.0)  # type: ignore[call-arg]
+np.int64(value=0)  # type: ignore[call-arg]
+np.uint64(value=0)  # type: ignore[call-arg]
+np.complex128(value=0.0j)  # type: ignore[call-overload]
+np.str_(value="bob")  # type: ignore[call-overload]
+np.bytes_(value=b"test")  # type: ignore[call-overload]
+np.void(value=b"test")  # type: ignore[call-overload]
+np.bool(value=True)  # type: ignore[call-overload]
+np.datetime64(value="2019")  # type: ignore[call-overload]
+np.timedelta64(value=0)  # type: ignore[call-overload]
+
+np.bytes_(b"hello", encoding="utf-8")  # type: ignore[call-overload]
+np.str_("hello", encoding="utf-8")  # type: ignore[call-overload]
+
+f8.item(1)  # type: ignore[call-overload]
+f8.item((0, 1))  # type: ignore[arg-type]
+f8.squeeze(axis=1)  # type: ignore[arg-type]
+f8.squeeze(axis=(0, 1))  # type: ignore[arg-type]
+f8.transpose(1)  # type: ignore[arg-type]
+
+def func(a: np.float32) -> None: ...
+
+func(f2)  # type: ignore[arg-type]
+func(f8)  # type: ignore[arg-type]
+
+c8.__getnewargs__()  # type: ignore[attr-defined]
+f2.__getnewargs__()  # type: ignore[attr-defined]
+f2.hex()  # type: ignore[attr-defined]
+np.float16.fromhex("0x0.0p+0")  # type: ignore[attr-defined]
+f2.__trunc__()  # type: ignore[attr-defined]
+f2.__getformat__("float")  # type: ignore[attr-defined]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/shape.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/shape.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..a83b2e9995ed49401da23e5c5258c71b76445ab4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/shape.pyi
@@ -0,0 +1,7 @@
+from typing import Any
+
+import numpy as np
+
+# test bounds of _ShapeT_co
+
+np.ndarray[tuple[str, str], Any]  # type: ignore[type-var]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/shape_base.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/shape_base.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..1c38f59b30ee4a77a20fd4aa2b244357f8df4170
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/shape_base.pyi
@@ -0,0 +1,8 @@
+import numpy as np
+
+class DTypeLike:
+    dtype: np.dtype[np.int_]
+
+dtype_like: DTypeLike
+
+np.expand_dims(dtype_like, (5, 10))  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/stride_tricks.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/stride_tricks.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..f721b436177b5e2d95df3396d27a64f7cacce51f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/stride_tricks.pyi
@@ -0,0 +1,9 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+
+np.lib.stride_tricks.as_strided(AR_f8, shape=8)  # type: ignore[call-overload]
+np.lib.stride_tricks.as_strided(AR_f8, strides=8)  # type: ignore[call-overload]
+
+np.lib.stride_tricks.sliding_window_view(AR_f8, axis=(1,))  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/strings.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/strings.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..0fb01da8dc20eff32f8fe5dbc296ce31ad626d02
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/strings.pyi
@@ -0,0 +1,52 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_U: npt.NDArray[np.str_]
+AR_S: npt.NDArray[np.bytes_]
+
+np.strings.equal(AR_U, AR_S)  # type: ignore[arg-type]
+np.strings.not_equal(AR_U, AR_S)  # type: ignore[arg-type]
+
+np.strings.greater_equal(AR_U, AR_S)  # type: ignore[arg-type]
+np.strings.less_equal(AR_U, AR_S)  # type: ignore[arg-type]
+np.strings.greater(AR_U, AR_S)  # type: ignore[arg-type]
+np.strings.less(AR_U, AR_S)  # type: ignore[arg-type]
+
+np.strings.encode(AR_S)  # type: ignore[arg-type]
+np.strings.decode(AR_U)  # type: ignore[arg-type]
+
+np.strings.lstrip(AR_U, b"a")  # type: ignore[arg-type]
+np.strings.lstrip(AR_S, "a")  # type: ignore[arg-type]
+np.strings.strip(AR_U, b"a")  # type: ignore[arg-type]
+np.strings.strip(AR_S, "a")  # type: ignore[arg-type]
+np.strings.rstrip(AR_U, b"a")  # type: ignore[arg-type]
+np.strings.rstrip(AR_S, "a")  # type: ignore[arg-type]
+
+np.strings.partition(AR_U, b"a")  # type: ignore[arg-type]
+np.strings.partition(AR_S, "a")  # type: ignore[arg-type]
+np.strings.rpartition(AR_U, b"a")  # type: ignore[arg-type]
+np.strings.rpartition(AR_S, "a")  # type: ignore[arg-type]
+
+np.strings.count(AR_U, b"a", [1, 2, 3], [1, 2, 3])  # type: ignore[arg-type]
+np.strings.count(AR_S, "a", 0, 9)  # type: ignore[arg-type]
+
+np.strings.endswith(AR_U, b"a", [1, 2, 3], [1, 2, 3])  # type: ignore[arg-type]
+np.strings.endswith(AR_S, "a", 0, 9)  # type: ignore[arg-type]
+np.strings.startswith(AR_U, b"a", [1, 2, 3], [1, 2, 3])  # type: ignore[arg-type]
+np.strings.startswith(AR_S, "a", 0, 9)  # type: ignore[arg-type]
+
+np.strings.find(AR_U, b"a", [1, 2, 3], [1, 2, 3])  # type: ignore[arg-type]
+np.strings.find(AR_S, "a", 0, 9)  # type: ignore[arg-type]
+np.strings.rfind(AR_U, b"a", [1, 2, 3], [1, 2, 3])  # type: ignore[arg-type]
+np.strings.rfind(AR_S, "a", 0, 9)  # type: ignore[arg-type]
+
+np.strings.index(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.strings.index(AR_S, "a", end=9)  # type: ignore[arg-type]
+np.strings.rindex(AR_U, b"a", start=[1, 2, 3])  # type: ignore[arg-type]
+np.strings.rindex(AR_S, "a", end=9)  # type: ignore[arg-type]
+
+np.strings.isdecimal(AR_S)  # type: ignore[arg-type]
+np.strings.isnumeric(AR_S)  # type: ignore[arg-type]
+
+np.strings.replace(AR_U, b"_", b"-", 10)  # type: ignore[arg-type]
+np.strings.replace(AR_S, "_", "-", 1)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/testing.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/testing.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..c2535584a98bf6c692eeea3af106ae7a27c7abef
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/testing.pyi
@@ -0,0 +1,28 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_U: npt.NDArray[np.str_]
+
+def func(x: object) -> bool: ...
+
+np.testing.assert_(True, msg=1)  # type: ignore[arg-type]
+np.testing.build_err_msg(1, "test")  # type: ignore[arg-type]
+np.testing.assert_almost_equal(AR_U, AR_U)  # type: ignore[arg-type]
+np.testing.assert_approx_equal([1, 2, 3], [1, 2, 3])  # type: ignore[arg-type]
+np.testing.assert_array_almost_equal(AR_U, AR_U)  # type: ignore[arg-type]
+np.testing.assert_array_less(AR_U, AR_U)  # type: ignore[arg-type]
+np.testing.assert_string_equal(b"a", b"a")  # type: ignore[arg-type]
+
+np.testing.assert_raises(expected_exception=TypeError, callable=func)  # type: ignore[call-overload]
+np.testing.assert_raises_regex(expected_exception=TypeError, expected_regex="T", callable=func)  # type: ignore[call-overload]
+
+np.testing.assert_allclose(AR_U, AR_U)  # type: ignore[arg-type]
+np.testing.assert_array_almost_equal_nulp(AR_U, AR_U)  # type: ignore[arg-type]
+np.testing.assert_array_max_ulp(AR_U, AR_U)  # type: ignore[arg-type]
+
+np.testing.assert_warns(RuntimeWarning, func)  # type: ignore[call-overload]
+np.testing.assert_no_warnings(func=func)  # type: ignore[call-overload]
+np.testing.assert_no_warnings(func)  # type: ignore[call-overload]
+np.testing.assert_no_warnings(func, y=None)  # type: ignore[call-overload]
+
+np.testing.assert_no_gc_cycles(func=func)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/twodim_base.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/twodim_base.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..46b07ac618ce61dc8a08f901a3173d567f09a033
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/twodim_base.pyi
@@ -0,0 +1,39 @@
+from typing import type_check_only
+
+import numpy as np
+import numpy.typing as npt
+
+_0d_bool: np.bool
+_nd_bool: npt.NDArray[np.bool]
+_nd_td64: npt.NDArray[np.timedelta64]
+_to_2d_bool: list[list[bool]]
+
+@type_check_only
+def func1(ar: np.ndarray, a: int) -> npt.NDArray[np.str_]: ...
+@type_check_only
+def func2(ar: np.ndarray, a: float) -> float: ...
+
+###
+
+np.eye(10, M=20.0)  # type: ignore[call-overload]
+np.eye(10, k=2.5, dtype=int)  # type: ignore[call-overload]
+
+np.diag(_nd_bool, k=0.5)  # type: ignore[call-overload]
+np.diagflat(_nd_bool, k=0.5)  # type: ignore[call-overload]
+
+np.tri(10, M=20.0)  # type: ignore[call-overload]
+np.tri(10, k=2.5, dtype=int)  # type: ignore[call-overload]
+
+np.tril(_nd_bool, k=0.5)  # type: ignore[call-overload]
+np.triu(_nd_bool, k=0.5)  # type: ignore[call-overload]
+
+np.vander(_nd_td64)  # type: ignore[type-var]
+
+np.histogram2d(_nd_td64)  # type: ignore[call-overload]
+
+np.mask_indices(10, func1)  # type: ignore[arg-type]
+np.mask_indices(10, func2, 10.5)  # type: ignore[arg-type]
+
+np.tril_indices(3.14)  # type: ignore[arg-type]
+
+np.tril_indices_from(_to_2d_bool)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/type_check.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/type_check.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..775f405102caecb6e847ff44d120fca75f1bd091
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/type_check.pyi
@@ -0,0 +1,12 @@
+import numpy as np
+
+DTYPE_i8: np.dtype[np.int64]
+
+np.mintypecode(DTYPE_i8)  # type: ignore[arg-type]
+np.iscomplexobj(DTYPE_i8)  # type: ignore[arg-type]
+np.isrealobj(DTYPE_i8)  # type: ignore[arg-type]
+
+np.typename(DTYPE_i8)  # type: ignore[call-overload]
+np.typename("invalid")  # type: ignore[call-overload]
+
+np.common_type(np.timedelta64())  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufunc_config.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufunc_config.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..cf76f6690ed091d4d9d5479d9f7ddb7122ca2057
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufunc_config.pyi
@@ -0,0 +1,21 @@
+"""Typing tests for `numpy._core._ufunc_config`."""
+
+import numpy as np
+
+def func1(a: str, b: int, c: float) -> None: ...
+def func2(a: str, *, b: int) -> None: ...
+
+class Write1:
+    def write1(self, a: str) -> None: ...
+
+class Write2:
+    def write(self, a: str, b: str) -> None: ...
+
+class Write3:
+    def write(self, *, a: str) -> None: ...
+
+np.seterrcall(func1)  # type: ignore[arg-type]
+np.seterrcall(func2)  # type: ignore[arg-type]
+np.seterrcall(Write1())  # type: ignore[arg-type]
+np.seterrcall(Write2())  # type: ignore[arg-type]
+np.seterrcall(Write3())  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufunclike.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufunclike.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..7153d99168c64801312beb94025ab228c9d3932e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufunclike.pyi
@@ -0,0 +1,21 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_c: npt.NDArray[np.complex128]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+AR_O: npt.NDArray[np.object_]
+
+np.fix(AR_c)  # type: ignore[arg-type]
+np.fix(AR_m)  # type: ignore[arg-type]
+np.fix(AR_M)  # type: ignore[arg-type]
+
+np.isposinf(AR_c)  # type: ignore[arg-type]
+np.isposinf(AR_m)  # type: ignore[arg-type]
+np.isposinf(AR_M)  # type: ignore[arg-type]
+np.isposinf(AR_O)  # type: ignore[arg-type]
+
+np.isneginf(AR_c)  # type: ignore[arg-type]
+np.isneginf(AR_m)  # type: ignore[arg-type]
+np.isneginf(AR_M)  # type: ignore[arg-type]
+np.isneginf(AR_O)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufuncs.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufuncs.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..03c8c30144e05c8c3b6f086a8d5cbc58833a1eb6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/ufuncs.pyi
@@ -0,0 +1,17 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+
+np.sin.nin + "foo"  # type: ignore[operator]
+np.sin(1, foo="bar")  # type: ignore[call-overload]
+
+np.abs(None)  # type: ignore[call-overload]
+
+np.add(1, 1, 1)  # type: ignore[call-overload]
+np.add(1, 1, axis=0)  # type: ignore[call-overload]
+
+np.matmul(AR_f8, AR_f8, where=True)  # type: ignore[call-overload]
+
+np.frexp(AR_f8, out=None)  # type: ignore[call-overload]
+np.frexp(AR_f8, out=AR_f8)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/warnings_and_errors.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/warnings_and_errors.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..78d781e5fad904d689bc62438f4bbb48c372f942
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/fail/warnings_and_errors.pyi
@@ -0,0 +1,5 @@
+import numpy.exceptions as ex
+
+ex.AxisError(1.0)  # type: ignore[call-overload]
+ex.AxisError(1, ndim=2.0)  # type: ignore[call-overload]
+ex.AxisError(2, msg_prefix=404)  # type: ignore[call-overload]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/misc/extended_precision.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/misc/extended_precision.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..b1481453064f5b799154a167b57ec7c1e5fc2c60
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/misc/extended_precision.pyi
@@ -0,0 +1,9 @@
+from typing import assert_type
+
+import numpy as np
+from numpy._typing import _96Bit, _128Bit
+
+assert_type(np.float96(), np.floating[_96Bit])
+assert_type(np.float128(), np.floating[_128Bit])
+assert_type(np.complex192(), np.complexfloating[_96Bit, _96Bit])
+assert_type(np.complex256(), np.complexfloating[_128Bit, _128Bit])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/mypy.ini b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/mypy.ini
new file mode 100644
index 0000000000000000000000000000000000000000..1e65d82143632819d9a3b9805519c61d120c9e26
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/mypy.ini
@@ -0,0 +1,8 @@
+[mypy]
+strict = True
+enable_error_code = deprecated, ignore-without-code, truthy-bool
+disallow_any_unimported = True
+allow_redefinition_new = True
+local_partial_types = True
+show_absolute_path = True
+pretty = True
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diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arithmetic.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arithmetic.py
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--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arithmetic.py
@@ -0,0 +1,614 @@
+from __future__ import annotations
+
+from typing import Any, cast
+
+import pytest
+
+import numpy as np
+import numpy.typing as npt
+
+c16 = np.complex128(1)
+f8 = np.float64(1)
+i8 = np.int64(1)
+u8 = np.uint64(1)
+
+c8 = np.complex64(1)
+f4 = np.float32(1)
+i4 = np.int32(1)
+u4 = np.uint32(1)
+
+dt = np.datetime64(1, "D")
+td = np.timedelta64(1, "D")
+
+b_ = np.bool(1)
+
+b = bool(1)
+c = complex(1)
+f = float(1)
+i = 1
+
+
+class Object:
+    def __array__(self, dtype: np.typing.DTypeLike | None = None,
+                  copy: bool | None = None) -> np.ndarray[Any, np.dtype[np.object_]]:
+        ret = np.empty((), dtype=object)
+        ret[()] = self
+        return ret
+
+    def __sub__(self, value: Any) -> Object:
+        return self
+
+    def __rsub__(self, value: Any) -> Object:
+        return self
+
+    def __floordiv__(self, value: Any) -> Object:
+        return self
+
+    def __rfloordiv__(self, value: Any) -> Object:
+        return self
+
+    def __mul__(self, value: Any) -> Object:
+        return self
+
+    def __rmul__(self, value: Any) -> Object:
+        return self
+
+    def __pow__(self, value: Any) -> Object:
+        return self
+
+    def __rpow__(self, value: Any) -> Object:
+        return self
+
+
+AR_b: npt.NDArray[np.bool] = np.array([True])
+AR_u: npt.NDArray[np.uint32] = np.array([1], dtype=np.uint32)
+AR_i: npt.NDArray[np.int64] = np.array([1])
+AR_integer: npt.NDArray[np.integer] = cast(npt.NDArray[np.integer], AR_i)
+AR_f: npt.NDArray[np.float64] = np.array([1.0])
+AR_c: npt.NDArray[np.complex128] = np.array([1j])
+AR_m: npt.NDArray[np.timedelta64] = np.array([np.timedelta64(1, "D")])
+AR_M: npt.NDArray[np.datetime64] = np.array([np.datetime64(1, "D")])
+AR_O: npt.NDArray[np.object_] = np.array([Object()])
+
+AR_LIKE_b = [True]
+AR_LIKE_u = [np.uint32(1)]
+AR_LIKE_i = [1]
+AR_LIKE_f = [1.0]
+AR_LIKE_c = [1j]
+AR_LIKE_m = [np.timedelta64(1, "D")]
+AR_LIKE_M = [np.datetime64(1, "D")]
+AR_LIKE_O = [Object()]
+
+# Array subtractions
+
+AR_b - AR_LIKE_u
+AR_b - AR_LIKE_i
+AR_b - AR_LIKE_f
+AR_b - AR_LIKE_c
+AR_b - AR_LIKE_m
+AR_b - AR_LIKE_O
+
+AR_LIKE_u - AR_b
+AR_LIKE_i - AR_b
+AR_LIKE_f - AR_b
+AR_LIKE_c - AR_b
+AR_LIKE_m - AR_b
+AR_LIKE_M - AR_b
+AR_LIKE_O - AR_b
+
+AR_u - AR_LIKE_b
+AR_u - AR_LIKE_u
+AR_u - AR_LIKE_i
+AR_u - AR_LIKE_f
+AR_u - AR_LIKE_c
+AR_u - AR_LIKE_m
+AR_u - AR_LIKE_O
+
+AR_LIKE_b - AR_u
+AR_LIKE_u - AR_u
+AR_LIKE_i - AR_u
+AR_LIKE_f - AR_u
+AR_LIKE_c - AR_u
+AR_LIKE_m - AR_u
+AR_LIKE_M - AR_u
+AR_LIKE_O - AR_u
+
+AR_i - AR_LIKE_b
+AR_i - AR_LIKE_u
+AR_i - AR_LIKE_i
+AR_i - AR_LIKE_f
+AR_i - AR_LIKE_c
+AR_i - AR_LIKE_m
+AR_i - AR_LIKE_O
+
+AR_LIKE_b - AR_i
+AR_LIKE_u - AR_i
+AR_LIKE_i - AR_i
+AR_LIKE_f - AR_i
+AR_LIKE_c - AR_i
+AR_LIKE_m - AR_i
+AR_LIKE_M - AR_i
+AR_LIKE_O - AR_i
+
+AR_f - AR_LIKE_b
+AR_f - AR_LIKE_u
+AR_f - AR_LIKE_i
+AR_f - AR_LIKE_f
+AR_f - AR_LIKE_c
+AR_f - AR_LIKE_O
+
+AR_LIKE_b - AR_f
+AR_LIKE_u - AR_f
+AR_LIKE_i - AR_f
+AR_LIKE_f - AR_f
+AR_LIKE_c - AR_f
+AR_LIKE_O - AR_f
+
+AR_c - AR_LIKE_b
+AR_c - AR_LIKE_u
+AR_c - AR_LIKE_i
+AR_c - AR_LIKE_f
+AR_c - AR_LIKE_c
+AR_c - AR_LIKE_O
+
+AR_LIKE_b - AR_c
+AR_LIKE_u - AR_c
+AR_LIKE_i - AR_c
+AR_LIKE_f - AR_c
+AR_LIKE_c - AR_c
+AR_LIKE_O - AR_c
+
+AR_m - AR_LIKE_b
+AR_m - AR_LIKE_u
+AR_m - AR_LIKE_i
+AR_m - AR_LIKE_m
+
+AR_LIKE_b - AR_m
+AR_LIKE_u - AR_m
+AR_LIKE_i - AR_m
+AR_LIKE_m - AR_m
+AR_LIKE_M - AR_m
+
+AR_M - AR_LIKE_b
+AR_M - AR_LIKE_u
+AR_M - AR_LIKE_i
+AR_M - AR_LIKE_m
+AR_M - AR_LIKE_M
+
+AR_LIKE_M - AR_M
+
+AR_O - AR_LIKE_b
+AR_O - AR_LIKE_u
+AR_O - AR_LIKE_i
+AR_O - AR_LIKE_f
+AR_O - AR_LIKE_c
+AR_O - AR_LIKE_O
+
+AR_LIKE_b - AR_O
+AR_LIKE_u - AR_O
+AR_LIKE_i - AR_O
+AR_LIKE_f - AR_O
+AR_LIKE_c - AR_O
+AR_LIKE_O - AR_O
+
+AR_u += AR_b
+AR_u += AR_u
+AR_u += 1  # Allowed during runtime as long as the object is 0D and >=0
+
+# Array floor division
+
+AR_b // AR_LIKE_b
+AR_b // AR_LIKE_u
+AR_b // AR_LIKE_i
+AR_b // AR_LIKE_f
+AR_b // AR_LIKE_O
+
+AR_LIKE_b // AR_b
+AR_LIKE_u // AR_b
+AR_LIKE_i // AR_b
+AR_LIKE_f // AR_b
+AR_LIKE_O // AR_b
+
+AR_u // AR_LIKE_b
+AR_u // AR_LIKE_u
+AR_u // AR_LIKE_i
+AR_u // AR_LIKE_f
+AR_u // AR_LIKE_O
+
+AR_LIKE_b // AR_u
+AR_LIKE_u // AR_u
+AR_LIKE_i // AR_u
+AR_LIKE_f // AR_u
+AR_LIKE_m // AR_u
+AR_LIKE_O // AR_u
+
+AR_i // AR_LIKE_b
+AR_i // AR_LIKE_u
+AR_i // AR_LIKE_i
+AR_i // AR_LIKE_f
+AR_i // AR_LIKE_O
+
+AR_LIKE_b // AR_i
+AR_LIKE_u // AR_i
+AR_LIKE_i // AR_i
+AR_LIKE_f // AR_i
+AR_LIKE_m // AR_i
+AR_LIKE_O // AR_i
+
+AR_f // AR_LIKE_b
+AR_f // AR_LIKE_u
+AR_f // AR_LIKE_i
+AR_f // AR_LIKE_f
+AR_f // AR_LIKE_O
+
+AR_LIKE_b // AR_f
+AR_LIKE_u // AR_f
+AR_LIKE_i // AR_f
+AR_LIKE_f // AR_f
+AR_LIKE_m // AR_f
+AR_LIKE_O // AR_f
+
+AR_m // AR_LIKE_u
+AR_m // AR_LIKE_i
+AR_m // AR_LIKE_f
+AR_m // AR_LIKE_m
+
+AR_LIKE_m // AR_m
+
+AR_m /= f
+AR_m //= f
+AR_m /= AR_f
+AR_m /= AR_LIKE_f
+AR_m //= AR_f
+AR_m //= AR_LIKE_f
+
+AR_O // AR_LIKE_b
+AR_O // AR_LIKE_u
+AR_O // AR_LIKE_i
+AR_O // AR_LIKE_f
+AR_O // AR_LIKE_O
+
+AR_LIKE_b // AR_O
+AR_LIKE_u // AR_O
+AR_LIKE_i // AR_O
+AR_LIKE_f // AR_O
+AR_LIKE_O // AR_O
+
+# Inplace multiplication
+
+AR_b *= AR_LIKE_b
+
+AR_u *= AR_LIKE_b
+AR_u *= AR_LIKE_u
+
+AR_i *= AR_LIKE_b
+AR_i *= AR_LIKE_u
+AR_i *= AR_LIKE_i
+
+AR_integer *= AR_LIKE_b
+AR_integer *= AR_LIKE_u
+AR_integer *= AR_LIKE_i
+
+AR_f *= AR_LIKE_b
+AR_f *= AR_LIKE_u
+AR_f *= AR_LIKE_i
+AR_f *= AR_LIKE_f
+
+AR_c *= AR_LIKE_b
+AR_c *= AR_LIKE_u
+AR_c *= AR_LIKE_i
+AR_c *= AR_LIKE_f
+AR_c *= AR_LIKE_c
+
+AR_m *= AR_LIKE_b
+AR_m *= AR_LIKE_u
+AR_m *= AR_LIKE_i
+AR_m *= AR_LIKE_f
+
+AR_O *= AR_LIKE_b
+AR_O *= AR_LIKE_u
+AR_O *= AR_LIKE_i
+AR_O *= AR_LIKE_f
+AR_O *= AR_LIKE_c
+AR_O *= AR_LIKE_O
+
+# Inplace power
+
+AR_u **= AR_LIKE_b
+AR_u **= AR_LIKE_u
+
+AR_i **= AR_LIKE_b
+AR_i **= AR_LIKE_u
+AR_i **= AR_LIKE_i
+
+AR_integer **= AR_LIKE_b
+AR_integer **= AR_LIKE_u
+AR_integer **= AR_LIKE_i
+
+AR_f **= AR_LIKE_b
+AR_f **= AR_LIKE_u
+AR_f **= AR_LIKE_i
+AR_f **= AR_LIKE_f
+
+AR_c **= AR_LIKE_b
+AR_c **= AR_LIKE_u
+AR_c **= AR_LIKE_i
+AR_c **= AR_LIKE_f
+AR_c **= AR_LIKE_c
+
+AR_O **= AR_LIKE_b
+AR_O **= AR_LIKE_u
+AR_O **= AR_LIKE_i
+AR_O **= AR_LIKE_f
+AR_O **= AR_LIKE_c
+AR_O **= AR_LIKE_O
+
+# unary ops
+
+-c16
+-c8
+-f8
+-f4
+-i8
+-i4
+with pytest.warns(RuntimeWarning):
+    -u8
+    -u4
+-td
+-AR_f
+
++c16
++c8
++f8
++f4
++i8
++i4
++u8
++u4
++td
++AR_f
+
+abs(c16)
+abs(c8)
+abs(f8)
+abs(f4)
+abs(i8)
+abs(i4)
+abs(u8)
+abs(u4)
+abs(td)
+abs(b_)
+abs(AR_f)
+
+# Time structures
+
+dt + td
+dt + i
+dt + i4
+dt + i8
+dt - dt
+dt - i
+dt - i4
+dt - i8
+
+td + td
+td + i
+td + i4
+td + i8
+td - td
+td - i
+td - i4
+td - i8
+td / f
+td / f4
+td / f8
+td / td
+td // td
+td % td
+
+
+# boolean
+
+b_ / b
+b_ / b_
+b_ / i
+b_ / i8
+b_ / i4
+b_ / u8
+b_ / u4
+b_ / f
+b_ / f8
+b_ / f4
+b_ / c
+b_ / c16
+b_ / c8
+
+b / b_
+b_ / b_
+i / b_
+i8 / b_
+i4 / b_
+u8 / b_
+u4 / b_
+f / b_
+f8 / b_
+f4 / b_
+c / b_
+c16 / b_
+c8 / b_
+
+# Complex
+
+c16 + c16
+c16 + f8
+c16 + i8
+c16 + c8
+c16 + f4
+c16 + i4
+c16 + b_
+c16 + b
+c16 + c
+c16 + f
+c16 + i
+c16 + AR_f
+
+c16 + c16
+f8 + c16
+i8 + c16
+c8 + c16
+f4 + c16
+i4 + c16
+b_ + c16
+b + c16
+c + c16
+f + c16
+i + c16
+AR_f + c16
+
+c8 + c16
+c8 + f8
+c8 + i8
+c8 + c8
+c8 + f4
+c8 + i4
+c8 + b_
+c8 + b
+c8 + c
+c8 + f
+c8 + i
+c8 + AR_f
+
+c16 + c8
+f8 + c8
+i8 + c8
+c8 + c8
+f4 + c8
+i4 + c8
+b_ + c8
+b + c8
+c + c8
+f + c8
+i + c8
+AR_f + c8
+
+# Float
+
+f8 + f8
+f8 + i8
+f8 + f4
+f8 + i4
+f8 + b_
+f8 + b
+f8 + c
+f8 + f
+f8 + i
+f8 + AR_f
+
+f8 + f8
+i8 + f8
+f4 + f8
+i4 + f8
+b_ + f8
+b + f8
+c + f8
+f + f8
+i + f8
+AR_f + f8
+
+f4 + f8
+f4 + i8
+f4 + f4
+f4 + i4
+f4 + b_
+f4 + b
+f4 + c
+f4 + f
+f4 + i
+f4 + AR_f
+
+f8 + f4
+i8 + f4
+f4 + f4
+i4 + f4
+b_ + f4
+b + f4
+c + f4
+f + f4
+i + f4
+AR_f + f4
+
+# Int
+
+i8 + i8
+i8 + u8
+i8 + i4
+i8 + u4
+i8 + b_
+i8 + b
+i8 + c
+i8 + f
+i8 + i
+i8 + AR_f
+
+u8 + u8
+u8 + i4
+u8 + u4
+u8 + b_
+u8 + b
+u8 + c
+u8 + f
+u8 + i
+u8 + AR_f
+
+i8 + i8
+u8 + i8
+i4 + i8
+u4 + i8
+b_ + i8
+b + i8
+c + i8
+f + i8
+i + i8
+AR_f + i8
+
+u8 + u8
+i4 + u8
+u4 + u8
+b_ + u8
+b + u8
+c + u8
+f + u8
+i + u8
+AR_f + u8
+
+i4 + i8
+i4 + i4
+i4 + i
+i4 + b_
+i4 + b
+i4 + AR_f
+
+u4 + i8
+u4 + i4
+u4 + u8
+u4 + u4
+u4 + i
+u4 + b_
+u4 + b
+u4 + AR_f
+
+i8 + i4
+i4 + i4
+i + i4
+b_ + i4
+b + i4
+AR_f + i4
+
+i8 + u4
+i4 + u4
+u8 + u4
+u4 + u4
+b_ + u4
+b + u4
+i + u4
+AR_f + u4
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/array_constructors.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/array_constructors.py
new file mode 100644
index 0000000000000000000000000000000000000000..743c088fa088ddf6d5a36b96c12a069e7f335f63
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/array_constructors.py
@@ -0,0 +1,138 @@
+from typing import Any
+
+import numpy as np
+import numpy.typing as npt
+
+
+class Index:
+    def __index__(self) -> int:
+        return 0
+
+
+class SubClass(npt.NDArray[np.float64]):
+    pass
+
+
+def func(i: int, j: int, **kwargs: Any) -> SubClass:
+    return B
+
+
+i8 = np.int64(1)
+
+A = np.array([1])
+B = A.view(SubClass).copy()
+B_stack = np.array([[1], [1]]).view(SubClass)
+C = [1]
+
+np.ndarray(Index())
+np.ndarray([Index()])
+
+np.array(1, dtype=float)
+np.array(1, copy=None)
+np.array(1, order='F')
+np.array(1, order=None)
+np.array(1, subok=True)
+np.array(1, ndmin=3)
+np.array(1, str, copy=True, order='C', subok=False, ndmin=2)
+
+np.asarray(A)
+np.asarray(B)
+np.asarray(C)
+
+np.asanyarray(A)
+np.asanyarray(B)
+np.asanyarray(B, dtype=int)
+np.asanyarray(C)
+
+np.ascontiguousarray(A)
+np.ascontiguousarray(B)
+np.ascontiguousarray(C)
+
+np.asfortranarray(A)
+np.asfortranarray(B)
+np.asfortranarray(C)
+
+np.require(A)
+np.require(B)
+np.require(B, dtype=int)
+np.require(B, requirements=None)
+np.require(B, requirements="E")
+np.require(B, requirements=["ENSUREARRAY"])
+np.require(B, requirements={"F", "E"})
+np.require(B, requirements=["C", "OWNDATA"])
+np.require(B, requirements="W")
+np.require(B, requirements="A")
+np.require(C)
+
+np.linspace(0, 2)
+np.linspace(0.5, [0, 1, 2])
+np.linspace([0, 1, 2], 3)
+np.linspace(0j, 2)
+np.linspace(0, 2, num=10)
+np.linspace(0, 2, endpoint=True)
+np.linspace(0, 2, retstep=True)
+np.linspace(0j, 2j, retstep=True)
+np.linspace(0, 2, dtype=bool)
+np.linspace([0, 1], [2, 3], axis=Index())
+
+np.logspace(0, 2, base=2)
+np.logspace(0, 2, base=2)
+np.logspace(0, 2, base=[1j, 2j], num=2)
+
+np.geomspace(1, 2)
+
+np.zeros_like(A)
+np.zeros_like(C)
+np.zeros_like(B)
+np.zeros_like(B, dtype=np.int64)
+
+np.ones_like(A)
+np.ones_like(C)
+np.ones_like(B)
+np.ones_like(B, dtype=np.int64)
+
+np.empty_like(A)
+np.empty_like(C)
+np.empty_like(B)
+np.empty_like(B, dtype=np.int64)
+
+np.full_like(A, i8)
+np.full_like(C, i8)
+np.full_like(B, i8)
+np.full_like(B, i8, dtype=np.int64)
+
+np.ones(1)
+np.ones([1, 1, 1])
+
+np.full(1, i8)
+np.full([1, 1, 1], i8)
+
+np.indices([1, 2, 3])
+np.indices([1, 2, 3], sparse=True)
+
+np.fromfunction(func, (3, 5))
+
+np.identity(10)
+
+np.atleast_1d(C)
+np.atleast_1d(A)
+np.atleast_1d(C, C)
+np.atleast_1d(C, A)
+np.atleast_1d(A, A)
+
+np.atleast_2d(C)
+
+np.atleast_3d(C)
+
+np.vstack([C, C])
+np.vstack([C, A])
+np.vstack([A, A])
+
+np.hstack([C, C])
+
+np.stack([C, C])
+np.stack([C, C], axis=0)
+np.stack([C, C], out=B_stack)
+
+np.block([[C, C], [C, C]])
+np.block(A)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/array_like.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/array_like.py
new file mode 100644
index 0000000000000000000000000000000000000000..3927a2e9ea4051619ab60ab11307ca1272ab565c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/array_like.py
@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+import numpy as np
+
+if TYPE_CHECKING:
+    from numpy._typing import ArrayLike, NDArray, _SupportsArray
+
+x1: ArrayLike = True
+x2: ArrayLike = 5
+x3: ArrayLike = 1.0
+x4: ArrayLike = 1 + 1j
+x5: ArrayLike = np.int8(1)
+x6: ArrayLike = np.float64(1)
+x7: ArrayLike = np.complex128(1)
+x8: ArrayLike = np.array([1, 2, 3])
+x9: ArrayLike = [1, 2, 3]
+x10: ArrayLike = (1, 2, 3)
+x11: ArrayLike = "foo"
+x12: ArrayLike = memoryview(b'foo')
+
+
+class A:
+    def __array__(self, dtype: np.dtype | None = None) -> NDArray[np.float64]:
+        return np.array([1.0, 2.0, 3.0])
+
+
+x13: ArrayLike = A()
+
+scalar: _SupportsArray[np.dtype[np.int64]] = np.int64(1)
+scalar.__array__()
+array: _SupportsArray[np.dtype[np.int_]] = np.array(1)
+array.__array__()
+
+a: _SupportsArray[np.dtype[np.float64]] = A()
+a.__array__()
+a.__array__()
+
+# Escape hatch for when you mean to make something like an object
+# array.
+object_array_scalar: object = (i for i in range(10))
+np.array(object_array_scalar)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arrayprint.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arrayprint.py
new file mode 100644
index 0000000000000000000000000000000000000000..1eacc04dd992463b9d3808991a0a2d1c36b2b526
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arrayprint.py
@@ -0,0 +1,37 @@
+import numpy as np
+
+AR = np.arange(10)
+AR.setflags(write=False)
+
+with np.printoptions():
+    np.set_printoptions(
+        precision=1,
+        threshold=2,
+        edgeitems=3,
+        linewidth=4,
+        suppress=False,
+        nanstr="Bob",
+        infstr="Bill",
+        formatter={},
+        sign="+",
+        floatmode="unique",
+    )
+    np.get_printoptions()
+    str(AR)
+
+    np.array2string(
+        AR,
+        max_line_width=5,
+        precision=2,
+        suppress_small=True,
+        separator=";",
+        prefix="test",
+        threshold=5,
+        floatmode="fixed",
+        suffix="?",
+        legacy="1.13",
+    )
+    np.format_float_scientific(1, precision=5)
+    np.format_float_positional(1, trim="k")
+    np.array_repr(AR)
+    np.array_str(AR)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arrayterator.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arrayterator.py
new file mode 100644
index 0000000000000000000000000000000000000000..fec19c7f951a7e3f55de97a83dbd47401a91b296
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/arrayterator.py
@@ -0,0 +1,28 @@
+
+from __future__ import annotations
+
+from typing import Any
+
+import numpy as np
+
+AR_i8: np.ndarray[Any, np.dtype[np.int_]] = np.arange(10)
+ar_iter = np.lib.Arrayterator(AR_i8)
+
+ar_iter.var
+ar_iter.buf_size
+ar_iter.start
+ar_iter.stop
+ar_iter.step
+ar_iter.shape
+ar_iter.flat
+
+ar_iter.__array__()
+
+for i in ar_iter:
+    pass
+
+ar_iter[0]
+ar_iter[...]
+ar_iter[:]
+ar_iter[0, 0, 0]
+ar_iter[..., 0, :]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/bitwise_ops.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/bitwise_ops.py
new file mode 100644
index 0000000000000000000000000000000000000000..726d76b2e5be37faae34f40bacf89ad7b2bca17a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/bitwise_ops.py
@@ -0,0 +1,131 @@
+import numpy as np
+
+i8 = np.int64(1)
+u8 = np.uint64(1)
+
+i4 = np.int32(1)
+u4 = np.uint32(1)
+
+b_ = np.bool(1)
+
+b = bool(1)
+i = 1
+
+AR = np.array([0, 1, 2], dtype=np.int32)
+AR.setflags(write=False)
+
+
+i8 << i8
+i8 >> i8
+i8 | i8
+i8 ^ i8
+i8 & i8
+
+i << AR
+i >> AR
+i | AR
+i ^ AR
+i & AR
+
+i8 << AR
+i8 >> AR
+i8 | AR
+i8 ^ AR
+i8 & AR
+
+i4 << i4
+i4 >> i4
+i4 | i4
+i4 ^ i4
+i4 & i4
+
+i8 << i4
+i8 >> i4
+i8 | i4
+i8 ^ i4
+i8 & i4
+
+i8 << i
+i8 >> i
+i8 | i
+i8 ^ i
+i8 & i
+
+i8 << b_
+i8 >> b_
+i8 | b_
+i8 ^ b_
+i8 & b_
+
+i8 << b
+i8 >> b
+i8 | b
+i8 ^ b
+i8 & b
+
+u8 << u8
+u8 >> u8
+u8 | u8
+u8 ^ u8
+u8 & u8
+
+u4 << u4
+u4 >> u4
+u4 | u4
+u4 ^ u4
+u4 & u4
+
+u4 << i4
+u4 >> i4
+u4 | i4
+u4 ^ i4
+u4 & i4
+
+u4 << i
+u4 >> i
+u4 | i
+u4 ^ i
+u4 & i
+
+u8 << b_
+u8 >> b_
+u8 | b_
+u8 ^ b_
+u8 & b_
+
+u8 << b
+u8 >> b
+u8 | b
+u8 ^ b
+u8 & b
+
+b_ << b_
+b_ >> b_
+b_ | b_
+b_ ^ b_
+b_ & b_
+
+b_ << AR
+b_ >> AR
+b_ | AR
+b_ ^ AR
+b_ & AR
+
+b_ << b
+b_ >> b
+b_ | b
+b_ ^ b
+b_ & b
+
+b_ << i
+b_ >> i
+b_ | i
+b_ ^ i
+b_ & i
+
+~i8
+~i4
+~u8
+~u4
+~b_
+~AR
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/comparisons.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/comparisons.py
new file mode 100644
index 0000000000000000000000000000000000000000..320a8a2e6145ffc8e35d93031dbb0190f696a0a8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/comparisons.py
@@ -0,0 +1,316 @@
+from __future__ import annotations
+
+from typing import Any, cast
+
+import numpy as np
+
+c16 = np.complex128()
+f8 = np.float64()
+i8 = np.int64()
+u8 = np.uint64()
+
+c8 = np.complex64()
+f4 = np.float32()
+i4 = np.int32()
+u4 = np.uint32()
+
+dt = np.datetime64(0, "D")
+td = np.timedelta64(0, "D")
+
+b_ = np.bool()
+
+b = False
+c = complex()
+f = 0.0
+i = 0
+
+SEQ = (0, 1, 2, 3, 4)
+
+AR_b: np.ndarray[Any, np.dtype[np.bool]] = np.array([True])
+AR_u: np.ndarray[Any, np.dtype[np.uint32]] = np.array([1], dtype=np.uint32)
+AR_i: np.ndarray[Any, np.dtype[np.int_]] = np.array([1])
+AR_f: np.ndarray[Any, np.dtype[np.float64]] = np.array([1.0])
+AR_c: np.ndarray[Any, np.dtype[np.complex128]] = np.array([1.0j])
+AR_S: np.ndarray[Any, np.dtype[np.bytes_]] = np.array([b"a"], "S")
+AR_T = cast(np.ndarray[Any, np.dtypes.StringDType], np.array(["a"], "T"))
+AR_U: np.ndarray[Any, np.dtype[np.str_]] = np.array(["a"], "U")
+AR_m: np.ndarray[Any, np.dtype[np.timedelta64]] = np.array([np.timedelta64("1")])
+AR_M: np.ndarray[Any, np.dtype[np.datetime64]] = np.array([np.datetime64("1")])
+AR_O: np.ndarray[Any, np.dtype[np.object_]] = np.array([1], dtype=object)
+
+# Arrays
+
+AR_b > AR_b
+AR_b > AR_u
+AR_b > AR_i
+AR_b > AR_f
+AR_b > AR_c
+
+AR_u > AR_b
+AR_u > AR_u
+AR_u > AR_i
+AR_u > AR_f
+AR_u > AR_c
+
+AR_i > AR_b
+AR_i > AR_u
+AR_i > AR_i
+AR_i > AR_f
+AR_i > AR_c
+
+AR_f > AR_b
+AR_f > AR_u
+AR_f > AR_i
+AR_f > AR_f
+AR_f > AR_c
+
+AR_c > AR_b
+AR_c > AR_u
+AR_c > AR_i
+AR_c > AR_f
+AR_c > AR_c
+
+AR_S > AR_S
+AR_S > b""
+
+AR_T > AR_T
+AR_T > AR_U
+AR_T > ""
+
+AR_U > AR_U
+AR_U > AR_T
+AR_U > ""
+
+AR_m > AR_b
+AR_m > AR_u
+AR_m > AR_i
+AR_b > AR_m
+AR_u > AR_m
+AR_i > AR_m
+
+AR_M > AR_M
+
+AR_O > AR_O
+1 > AR_O
+AR_O > 1
+
+# Time structures
+
+dt > dt
+
+td > td
+td > i
+td > i4
+td > i8
+td > AR_i
+td > SEQ
+
+# boolean
+
+b_ > b
+b_ > b_
+b_ > i
+b_ > i8
+b_ > i4
+b_ > u8
+b_ > u4
+b_ > f
+b_ > f8
+b_ > f4
+b_ > c
+b_ > c16
+b_ > c8
+b_ > AR_i
+b_ > SEQ
+
+# Complex
+
+c16 > c16
+c16 > f8
+c16 > i8
+c16 > c8
+c16 > f4
+c16 > i4
+c16 > b_
+c16 > b
+c16 > c
+c16 > f
+c16 > i
+c16 > AR_i
+c16 > SEQ
+
+c16 > c16
+f8 > c16
+i8 > c16
+c8 > c16
+f4 > c16
+i4 > c16
+b_ > c16
+b > c16
+c > c16
+f > c16
+i > c16
+AR_i > c16
+SEQ > c16
+
+c8 > c16
+c8 > f8
+c8 > i8
+c8 > c8
+c8 > f4
+c8 > i4
+c8 > b_
+c8 > b
+c8 > c
+c8 > f
+c8 > i
+c8 > AR_i
+c8 > SEQ
+
+c16 > c8
+f8 > c8
+i8 > c8
+c8 > c8
+f4 > c8
+i4 > c8
+b_ > c8
+b > c8
+c > c8
+f > c8
+i > c8
+AR_i > c8
+SEQ > c8
+
+# Float
+
+f8 > f8
+f8 > i8
+f8 > f4
+f8 > i4
+f8 > b_
+f8 > b
+f8 > c
+f8 > f
+f8 > i
+f8 > AR_i
+f8 > SEQ
+
+f8 > f8
+i8 > f8
+f4 > f8
+i4 > f8
+b_ > f8
+b > f8
+c > f8
+f > f8
+i > f8
+AR_i > f8
+SEQ > f8
+
+f4 > f8
+f4 > i8
+f4 > f4
+f4 > i4
+f4 > b_
+f4 > b
+f4 > c
+f4 > f
+f4 > i
+f4 > AR_i
+f4 > SEQ
+
+f8 > f4
+i8 > f4
+f4 > f4
+i4 > f4
+b_ > f4
+b > f4
+c > f4
+f > f4
+i > f4
+AR_i > f4
+SEQ > f4
+
+# Int
+
+i8 > i8
+i8 > u8
+i8 > i4
+i8 > u4
+i8 > b_
+i8 > b
+i8 > c
+i8 > f
+i8 > i
+i8 > AR_i
+i8 > SEQ
+
+u8 > u8
+u8 > i4
+u8 > u4
+u8 > b_
+u8 > b
+u8 > c
+u8 > f
+u8 > i
+u8 > AR_i
+u8 > SEQ
+
+i8 > i8
+u8 > i8
+i4 > i8
+u4 > i8
+b_ > i8
+b > i8
+c > i8
+f > i8
+i > i8
+AR_i > i8
+SEQ > i8
+
+u8 > u8
+i4 > u8
+u4 > u8
+b_ > u8
+b > u8
+c > u8
+f > u8
+i > u8
+AR_i > u8
+SEQ > u8
+
+i4 > i8
+i4 > i4
+i4 > i
+i4 > b_
+i4 > b
+i4 > AR_i
+i4 > SEQ
+
+u4 > i8
+u4 > i4
+u4 > u8
+u4 > u4
+u4 > i
+u4 > b_
+u4 > b
+u4 > AR_i
+u4 > SEQ
+
+i8 > i4
+i4 > i4
+i > i4
+b_ > i4
+b > i4
+AR_i > i4
+SEQ > i4
+
+i8 > u4
+i4 > u4
+u8 > u4
+u4 > u4
+b_ > u4
+b > u4
+i > u4
+AR_i > u4
+SEQ > u4
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/dtype.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/dtype.py
new file mode 100644
index 0000000000000000000000000000000000000000..917fe9367d4acc952449fb9077d4b6eeb25b659b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/dtype.py
@@ -0,0 +1,57 @@
+import numpy as np
+
+dtype_obj = np.dtype(np.str_)
+void_dtype_obj = np.dtype([("f0", np.float64), ("f1", np.float32)])
+
+np.dtype(dtype=np.int64)
+np.dtype(int)
+np.dtype("int")
+np.dtype(None)
+
+np.dtype((int, 2))
+np.dtype((int, (1,)))
+
+np.dtype({"names": ["a", "b"], "formats": [int, float]})
+np.dtype({"names": ["a"], "formats": [int], "titles": [object]})
+np.dtype({"names": ["a"], "formats": [int], "titles": [object()]})
+
+np.dtype([("name", np.str_, 16), ("grades", np.float64, (2,)), ("age", "int32")])
+
+np.dtype(
+    {
+        "names": ["a", "b"],
+        "formats": [int, float],
+        "itemsize": 9,
+        "aligned": False,
+        "titles": ["x", "y"],
+        "offsets": [0, 1],
+    }
+)
+
+np.dtype((np.float64, float))
+
+
+class Test:
+    dtype = np.dtype(float)
+
+
+np.dtype(Test())
+
+# Methods and attributes
+dtype_obj.base
+dtype_obj.subdtype
+dtype_obj.newbyteorder()
+dtype_obj.type
+dtype_obj.name
+dtype_obj.names
+
+dtype_obj * 0
+dtype_obj * 2
+
+0 * dtype_obj
+2 * dtype_obj
+
+void_dtype_obj["f0"]
+void_dtype_obj[0]
+void_dtype_obj[["f0", "f1"]]
+void_dtype_obj[["f0"]]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/einsumfunc.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/einsumfunc.py
new file mode 100644
index 0000000000000000000000000000000000000000..4420b7dd262188d1e8356461d5397e37cdfd41a6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/einsumfunc.py
@@ -0,0 +1,36 @@
+from __future__ import annotations
+
+from typing import Any
+
+import numpy as np
+
+AR_LIKE_b = [True, True, True]
+AR_LIKE_u = [np.uint32(1), np.uint32(2), np.uint32(3)]
+AR_LIKE_i = [1, 2, 3]
+AR_LIKE_f = [1.0, 2.0, 3.0]
+AR_LIKE_c = [1j, 2j, 3j]
+AR_LIKE_U = ["1", "2", "3"]
+
+OUT_f: np.ndarray[Any, np.dtype[np.float64]] = np.empty(3, dtype=np.float64)
+OUT_c: np.ndarray[Any, np.dtype[np.complex128]] = np.empty(3, dtype=np.complex128)
+
+np.einsum("i,i->i", AR_LIKE_b, AR_LIKE_b)
+np.einsum("i,i->i", AR_LIKE_u, AR_LIKE_u)
+np.einsum("i,i->i", AR_LIKE_i, AR_LIKE_i)
+np.einsum("i,i->i", AR_LIKE_f, AR_LIKE_f)
+np.einsum("i,i->i", AR_LIKE_c, AR_LIKE_c)
+np.einsum("i,i->i", AR_LIKE_b, AR_LIKE_i)
+np.einsum("i,i,i,i->i", AR_LIKE_b, AR_LIKE_u, AR_LIKE_i, AR_LIKE_c)
+
+np.einsum("i,i->i", AR_LIKE_f, AR_LIKE_f, dtype="c16")
+np.einsum("i,i->i", AR_LIKE_U, AR_LIKE_U, dtype=bool, casting="unsafe")
+np.einsum("i,i->i", AR_LIKE_f, AR_LIKE_f, out=OUT_c)
+np.einsum("i,i->i", AR_LIKE_U, AR_LIKE_U, dtype=int, casting="unsafe", out=OUT_f)
+
+np.einsum_path("i,i->i", AR_LIKE_b, AR_LIKE_b)
+np.einsum_path("i,i->i", AR_LIKE_u, AR_LIKE_u)
+np.einsum_path("i,i->i", AR_LIKE_i, AR_LIKE_i)
+np.einsum_path("i,i->i", AR_LIKE_f, AR_LIKE_f)
+np.einsum_path("i,i->i", AR_LIKE_c, AR_LIKE_c)
+np.einsum_path("i,i->i", AR_LIKE_b, AR_LIKE_i)
+np.einsum_path("i,i,i,i->i", AR_LIKE_b, AR_LIKE_u, AR_LIKE_i, AR_LIKE_c)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/flatiter.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/flatiter.py
new file mode 100644
index 0000000000000000000000000000000000000000..215569737dde5e2cfc32bfac967ec4495f182553
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/flatiter.py
@@ -0,0 +1,26 @@
+import numpy as np
+
+a = np.empty((2, 2)).flat
+
+a.base
+a.copy()
+a.coords
+a.index
+iter(a)
+next(a)
+a[0]
+a[...]
+a[:]
+a.__array__()
+
+b = np.array([1]).flat
+a[b]
+
+a[0] = "1"
+a[:] = "2"
+a[...] = "3"
+a[[]] = "4"
+a[[0]] = "5"
+a[[[0]]] = "6"
+a[[[[[0]]]]] = "7"
+a[b] = "8"
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/fromnumeric.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/fromnumeric.py
new file mode 100644
index 0000000000000000000000000000000000000000..a04d23568e8d1a893b79e4a5de5b7c0bf2d705b3
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/fromnumeric.py
@@ -0,0 +1,272 @@
+"""Tests for :mod:`numpy._core.fromnumeric`."""
+
+import numpy as np
+
+A = np.array(True, ndmin=2, dtype=bool)
+B = np.array(1.0, ndmin=2, dtype=np.float32)
+A.setflags(write=False)
+B.setflags(write=False)
+
+a = np.bool(True)
+b = np.float32(1.0)
+c = 1.0
+d = np.array(1.0, dtype=np.float32)  # writeable
+
+np.take(a, 0)
+np.take(b, 0)
+np.take(c, 0)
+np.take(A, 0)
+np.take(B, 0)
+np.take(A, [0])
+np.take(B, [0])
+
+np.reshape(a, 1)
+np.reshape(b, 1)
+np.reshape(c, 1)
+np.reshape(A, 1)
+np.reshape(B, 1)
+
+np.choose(a, [True, True])
+np.choose(A, [1.0, 1.0])
+
+np.repeat(a, 1)
+np.repeat(b, 1)
+np.repeat(c, 1)
+np.repeat(A, 1)
+np.repeat(B, 1)
+
+np.swapaxes(A, 0, 0)
+np.swapaxes(B, 0, 0)
+
+np.transpose(a)
+np.transpose(b)
+np.transpose(c)
+np.transpose(A)
+np.transpose(B)
+
+np.partition(a, 0, axis=None)
+np.partition(b, 0, axis=None)
+np.partition(c, 0, axis=None)
+np.partition(A, 0)
+np.partition(B, 0)
+
+np.argpartition(a, 0)
+np.argpartition(b, 0)
+np.argpartition(c, 0)
+np.argpartition(A, 0)
+np.argpartition(B, 0)
+
+np.sort(A, 0)
+np.sort(B, 0)
+
+np.argsort(A, 0)
+np.argsort(B, 0)
+
+np.argmax(A)
+np.argmax(B)
+np.argmax(A, axis=0)
+np.argmax(B, axis=0)
+
+np.argmin(A)
+np.argmin(B)
+np.argmin(A, axis=0)
+np.argmin(B, axis=0)
+
+np.searchsorted(A[0], 0)
+np.searchsorted(B[0], 0)
+np.searchsorted(A[0], [0])
+np.searchsorted(B[0], [0])
+
+np.resize(a, (5, 5))
+np.resize(b, (5, 5))
+np.resize(c, (5, 5))
+np.resize(A, (5, 5))
+np.resize(B, (5, 5))
+
+np.squeeze(a)
+np.squeeze(b)
+np.squeeze(c)
+np.squeeze(A)
+np.squeeze(B)
+
+np.diagonal(A)
+np.diagonal(B)
+
+np.trace(A)
+np.trace(B)
+
+np.ravel(a)
+np.ravel(b)
+np.ravel(c)
+np.ravel(A)
+np.ravel(B)
+
+np.nonzero(A)
+np.nonzero(B)
+
+np.shape(a)
+np.shape(b)
+np.shape(c)
+np.shape(A)
+np.shape(B)
+
+np.compress([True], a)
+np.compress([True], b)
+np.compress([True], c)
+np.compress([True], A)
+np.compress([True], B)
+
+np.clip(a, 0, 1.0)
+np.clip(b, -1, 1)
+np.clip(a, 0, None)
+np.clip(b, None, 1)
+np.clip(c, 0, 1)
+np.clip(A, 0, 1)
+np.clip(B, 0, 1)
+np.clip(B, [0, 1], [1, 2])
+
+np.sum(a)
+np.sum(b)
+np.sum(c)
+np.sum(A)
+np.sum(B)
+np.sum(A, axis=0)
+np.sum(B, axis=0)
+
+np.all(a)
+np.all(b)
+np.all(c)
+np.all(A)
+np.all(B)
+np.all(A, axis=0)
+np.all(B, axis=0)
+np.all(A, keepdims=True)
+np.all(B, keepdims=True)
+
+np.any(a)
+np.any(b)
+np.any(c)
+np.any(A)
+np.any(B)
+np.any(A, axis=0)
+np.any(B, axis=0)
+np.any(A, keepdims=True)
+np.any(B, keepdims=True)
+
+np.cumsum(a)
+np.cumsum(b)
+np.cumsum(c)
+np.cumsum(A)
+np.cumsum(B)
+
+np.cumulative_sum(a)
+np.cumulative_sum(b)
+np.cumulative_sum(c)
+np.cumulative_sum(A, axis=0)
+np.cumulative_sum(B, axis=0)
+
+np.ptp(b)
+np.ptp(c)
+np.ptp(B)
+np.ptp(B, axis=0)
+np.ptp(B, keepdims=True)
+
+np.amax(a)
+np.amax(b)
+np.amax(c)
+np.amax(A)
+np.amax(B)
+np.amax(A, axis=0)
+np.amax(B, axis=0)
+np.amax(A, keepdims=True)
+np.amax(B, keepdims=True)
+
+np.amin(a)
+np.amin(b)
+np.amin(c)
+np.amin(A)
+np.amin(B)
+np.amin(A, axis=0)
+np.amin(B, axis=0)
+np.amin(A, keepdims=True)
+np.amin(B, keepdims=True)
+
+np.prod(a)
+np.prod(b)
+np.prod(c)
+np.prod(A)
+np.prod(B)
+np.prod(a, dtype=None)
+np.prod(A, dtype=None)
+np.prod(A, axis=0)
+np.prod(B, axis=0)
+np.prod(A, keepdims=True)
+np.prod(B, keepdims=True)
+np.prod(b, out=d)
+np.prod(B, out=d)
+
+np.cumprod(a)
+np.cumprod(b)
+np.cumprod(c)
+np.cumprod(A)
+np.cumprod(B)
+
+np.cumulative_prod(a)
+np.cumulative_prod(b)
+np.cumulative_prod(c)
+np.cumulative_prod(A, axis=0)
+np.cumulative_prod(B, axis=0)
+
+np.ndim(a)
+np.ndim(b)
+np.ndim(c)
+np.ndim(A)
+np.ndim(B)
+
+np.size(a)
+np.size(b)
+np.size(c)
+np.size(A)
+np.size(B)
+
+np.around(a)
+np.around(b)
+np.around(c)
+np.around(A)
+np.around(B)
+
+np.mean(a)
+np.mean(b)
+np.mean(c)
+np.mean(A)
+np.mean(B)
+np.mean(A, axis=0)
+np.mean(B, axis=0)
+np.mean(A, keepdims=True)
+np.mean(B, keepdims=True)
+np.mean(b, out=d)
+np.mean(B, out=d)
+
+np.std(a)
+np.std(b)
+np.std(c)
+np.std(A)
+np.std(B)
+np.std(A, axis=0)
+np.std(B, axis=0)
+np.std(A, keepdims=True)
+np.std(B, keepdims=True)
+np.std(b, out=d)
+np.std(B, out=d)
+
+np.var(a)
+np.var(b)
+np.var(c)
+np.var(A)
+np.var(B)
+np.var(A, axis=0)
+np.var(B, axis=0)
+np.var(A, keepdims=True)
+np.var(B, keepdims=True)
+np.var(b, out=d)
+np.var(B, out=d)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/index_tricks.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/index_tricks.py
new file mode 100644
index 0000000000000000000000000000000000000000..986f5ccfde4a26604a86ff32007ddb80eea2e37d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/index_tricks.py
@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+from typing import Any
+
+import numpy as np
+
+AR_LIKE_b = [[True, True], [True, True]]
+AR_LIKE_i = [[1, 2], [3, 4]]
+AR_LIKE_f = [[1.0, 2.0], [3.0, 4.0]]
+AR_LIKE_U = [["1", "2"], ["3", "4"]]
+
+AR_i8: np.ndarray[Any, np.dtype[np.int64]] = np.array(AR_LIKE_i, dtype=np.int64)
+
+np.ndenumerate(AR_i8)
+np.ndenumerate(AR_LIKE_f)
+np.ndenumerate(AR_LIKE_U)
+
+next(np.ndenumerate(AR_i8))
+next(np.ndenumerate(AR_LIKE_f))
+next(np.ndenumerate(AR_LIKE_U))
+
+iter(np.ndenumerate(AR_i8))
+iter(np.ndenumerate(AR_LIKE_f))
+iter(np.ndenumerate(AR_LIKE_U))
+
+iter(np.ndindex(1, 2, 3))
+next(np.ndindex(1, 2, 3))
+
+np.unravel_index([22, 41, 37], (7, 6))
+np.unravel_index([31, 41, 13], (7, 6), order='F')
+np.unravel_index(1621, (6, 7, 8, 9))
+
+np.ravel_multi_index(AR_LIKE_i, (7, 6))
+np.ravel_multi_index(AR_LIKE_i, (7, 6), order='F')
+np.ravel_multi_index(AR_LIKE_i, (4, 6), mode='clip')
+np.ravel_multi_index(AR_LIKE_i, (4, 4), mode=('clip', 'wrap'))
+np.ravel_multi_index((3, 1, 4, 1), (6, 7, 8, 9))
+
+np.mgrid[1:1:2]
+np.mgrid[1:1:2, None:10]
+
+np.ogrid[1:1:2]
+np.ogrid[1:1:2, None:10]
+
+np.index_exp[0:1]
+np.index_exp[0:1, None:3]
+np.index_exp[0, 0:1, ..., [0, 1, 3]]
+
+np.s_[0:1]
+np.s_[0:1, None:3]
+np.s_[0, 0:1, ..., [0, 1, 3]]
+
+np.ix_(AR_LIKE_b[0])
+np.ix_(AR_LIKE_i[0], AR_LIKE_f[0])
+np.ix_(AR_i8[0])
+
+np.fill_diagonal(AR_i8, 5)
+
+np.diag_indices(4)
+np.diag_indices(2, 3)
+
+np.diag_indices_from(AR_i8)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_user_array.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_user_array.py
new file mode 100644
index 0000000000000000000000000000000000000000..528babbd8efe6f2374abe2c53fff53f232d139be
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_user_array.py
@@ -0,0 +1,22 @@
+"""Based on the `if __name__ == "__main__"` test code in `lib/_user_array_impl.py`."""
+
+from __future__ import annotations
+
+import numpy as np
+from numpy.lib.user_array import container  # type: ignore[deprecated]
+
+N = 10_000
+W = H = int(N**0.5)
+
+a: np.ndarray[tuple[int, int], np.dtype[np.int32]]
+ua: container[tuple[int, int], np.dtype[np.int32]]
+
+a = np.arange(N, dtype=np.int32).reshape(W, H)
+ua = container(a)
+
+ua_small: container[tuple[int, int], np.dtype[np.int32]] = ua[:3, :5]
+ua_small[0, 0] = 10
+
+ua_bool: container[tuple[int, int], np.dtype[np.bool]] = ua_small > 1
+
+# shape: tuple[int, int] = np.shape(ua)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_utils.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_utils.py
new file mode 100644
index 0000000000000000000000000000000000000000..f2d589bd9d8da4bdad4ebd3c8b7a897361b30db7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_utils.py
@@ -0,0 +1,19 @@
+from __future__ import annotations
+
+from io import StringIO
+
+import numpy as np
+import numpy.lib.array_utils as array_utils
+
+FILE = StringIO()
+AR = np.arange(10, dtype=np.float64)
+
+
+def func(a: int) -> bool:
+    return True
+
+
+array_utils.byte_bounds(AR)
+array_utils.byte_bounds(np.float64())
+
+np.info(1, output=FILE)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_version.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_version.py
new file mode 100644
index 0000000000000000000000000000000000000000..ab55916c556fd55fead90913e45f209405bc9ee9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/lib_version.py
@@ -0,0 +1,18 @@
+from numpy.lib import NumpyVersion
+
+version = NumpyVersion("1.8.0")
+
+version.vstring
+version.version
+version.major
+version.minor
+version.bugfix
+version.pre_release
+version.is_devversion
+
+version == version
+version != version
+version < "1.8.0"
+version <= version
+version > version
+version >= "1.8.0"
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/literal.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/literal.py
new file mode 100644
index 0000000000000000000000000000000000000000..e4106d823fdd9da9bc88668d8e227b7e46307f8a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/literal.py
@@ -0,0 +1,52 @@
+from __future__ import annotations
+
+from functools import partial
+from typing import TYPE_CHECKING, Any
+
+import pytest
+
+import numpy as np
+
+if TYPE_CHECKING:
+    from collections.abc import Callable
+
+AR = np.array(0)
+AR.setflags(write=False)
+
+KACF = frozenset({None, "K", "A", "C", "F"})
+ACF = frozenset({None, "A", "C", "F"})
+CF = frozenset({None, "C", "F"})
+
+order_list: list[tuple[frozenset[str | None], Callable[..., Any]]] = [
+    (KACF, AR.tobytes),
+    (KACF, partial(AR.astype, int)),
+    (KACF, AR.copy),
+    (ACF, partial(AR.reshape, 1)),
+    (KACF, AR.flatten),
+    (KACF, AR.ravel),
+    (KACF, partial(np.array, 1)),
+    # NOTE: __call__ is needed due to mypy bugs (#17620, #17631)
+    (KACF, partial(np.ndarray.__call__, 1)),
+    (CF, partial(np.zeros.__call__, 1)),
+    (CF, partial(np.ones.__call__, 1)),
+    (CF, partial(np.empty.__call__, 1)),
+    (CF, partial(np.full, 1, 1)),
+    (KACF, partial(np.zeros_like, AR)),
+    (KACF, partial(np.ones_like, AR)),
+    (KACF, partial(np.empty_like, AR)),
+    (KACF, partial(np.full_like, AR, 1)),
+    (KACF, partial(np.add.__call__, 1, 1)),  # i.e. np.ufunc.__call__
+    (ACF, partial(np.reshape, AR, 1)),
+    (KACF, partial(np.ravel, AR)),
+    (KACF, partial(np.asarray, 1)),
+    (KACF, partial(np.asanyarray, 1)),
+]
+
+for order_set, func in order_list:
+    for order in order_set:
+        func(order=order)
+
+    invalid_orders = KACF - order_set
+    for order in invalid_orders:
+        with pytest.raises(ValueError):
+            func(order=order)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ma.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ma.py
new file mode 100644
index 0000000000000000000000000000000000000000..62cb4a9914d04a7f931a2e5773cc701c154783cc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ma.py
@@ -0,0 +1,199 @@
+import datetime as dt
+from typing import Any, TypeAlias, TypeVar, cast
+
+import numpy as np
+import numpy.typing as npt
+from numpy._typing import _Shape
+
+_ScalarT = TypeVar("_ScalarT", bound=np.generic)
+MaskedArray: TypeAlias = np.ma.MaskedArray[_Shape, np.dtype[_ScalarT]]
+
+# mypy: disable-error-code=no-untyped-call
+
+MAR_b: MaskedArray[np.bool] = np.ma.MaskedArray([True])
+MAR_u: MaskedArray[np.uint32] = np.ma.MaskedArray([1], dtype=np.uint32)
+MAR_i: MaskedArray[np.int64] = np.ma.MaskedArray([1])
+MAR_f: MaskedArray[np.float64] = np.ma.MaskedArray([1.0])
+MAR_c: MaskedArray[np.complex128] = np.ma.MaskedArray([1j])
+MAR_td64: MaskedArray[np.timedelta64] = np.ma.MaskedArray([np.timedelta64(1, "D")])
+MAR_dt64: MaskedArray[np.datetime64] = np.ma.MaskedArray([np.datetime64(1, "D")])
+MAR_S: MaskedArray[np.bytes_] = np.ma.MaskedArray([b'foo'], dtype=np.bytes_)
+MAR_U: MaskedArray[np.str_] = np.ma.MaskedArray(['foo'], dtype=np.str_)
+MAR_T = cast(np.ma.MaskedArray[Any, np.dtypes.StringDType],
+             np.ma.MaskedArray(["a"], dtype="T"))
+MAR_V: MaskedArray[np.void] = np.ma.MaskedArray(
+    [(1, 1)],
+    mask=[(False, False)],
+    dtype=[('a', int), ('b', int)]
+)
+
+AR_b: npt.NDArray[np.bool] = np.array([True, False, True])
+
+AR_LIKE_b = [True]
+AR_LIKE_u = [np.uint32(1)]
+AR_LIKE_i = [1]
+AR_LIKE_f = [1.0]
+AR_LIKE_c = [1j]
+AR_LIKE_m = [np.timedelta64(1, "D")]
+AR_LIKE_M = [np.datetime64(1, "D")]
+
+MAR_f.mask = AR_b
+MAR_f.mask = np.False_
+
+MAR_i.fill_value = 0
+
+MAR_b.flat[MAR_i > 0] = False
+MAR_i.flat[:] = 1
+MAR_f.flat[[0]] = AR_LIKE_f
+MAR_c.flat[[0, 0]] = [3, 4 + 3j]
+MAR_td64.flat[0] = dt.timedelta(1)
+MAR_dt64.flat[0] = dt.datetime(2020, 1, 1)
+
+MAR_b[MAR_i > 0] = False
+MAR_i[:] = 1
+MAR_f[[0]] = AR_LIKE_f
+MAR_c[[0, 0]] = [3, 4 + 3j]
+MAR_td64[0] = dt.timedelta(1)
+MAR_dt64[0] = dt.datetime(2020, 1, 1)
+MAR_V['a'] = [2]
+
+# Inplace addition
+
+MAR_b += AR_LIKE_b
+
+MAR_u += AR_LIKE_b
+MAR_u += AR_LIKE_u
+
+MAR_i += AR_LIKE_b
+MAR_i += 2
+MAR_i += AR_LIKE_i
+
+MAR_f += AR_LIKE_b
+MAR_f += 2
+MAR_f += AR_LIKE_u
+MAR_f += AR_LIKE_i
+MAR_f += AR_LIKE_f
+
+MAR_c += AR_LIKE_b
+MAR_c += AR_LIKE_u
+MAR_c += AR_LIKE_i
+MAR_c += AR_LIKE_f
+MAR_c += AR_LIKE_c
+
+MAR_td64 += AR_LIKE_b
+MAR_td64 += AR_LIKE_u
+MAR_td64 += AR_LIKE_i
+MAR_td64 += AR_LIKE_m
+MAR_dt64 += AR_LIKE_b
+MAR_dt64 += AR_LIKE_u
+MAR_dt64 += AR_LIKE_i
+MAR_dt64 += AR_LIKE_m
+
+MAR_S += b'snakes'
+MAR_U += 'snakes'
+MAR_T += 'snakes'
+
+# Inplace subtraction
+
+MAR_u -= AR_LIKE_b
+MAR_u -= AR_LIKE_u
+
+MAR_i -= AR_LIKE_b
+MAR_i -= AR_LIKE_i
+
+MAR_f -= AR_LIKE_b
+MAR_f -= AR_LIKE_u
+MAR_f -= AR_LIKE_i
+MAR_f -= AR_LIKE_f
+
+MAR_c -= AR_LIKE_b
+MAR_c -= AR_LIKE_u
+MAR_c -= AR_LIKE_i
+MAR_c -= AR_LIKE_f
+MAR_c -= AR_LIKE_c
+
+MAR_td64 -= AR_LIKE_b
+MAR_td64 -= AR_LIKE_u
+MAR_td64 -= AR_LIKE_i
+MAR_td64 -= AR_LIKE_m
+MAR_dt64 -= AR_LIKE_b
+MAR_dt64 -= AR_LIKE_u
+MAR_dt64 -= AR_LIKE_i
+MAR_dt64 -= AR_LIKE_m
+
+# Inplace floor division
+
+MAR_f //= AR_LIKE_b
+MAR_f //= 2
+MAR_f //= AR_LIKE_u
+MAR_f //= AR_LIKE_i
+MAR_f //= AR_LIKE_f
+
+MAR_td64 //= AR_LIKE_i
+
+# Inplace true division
+
+MAR_f /= AR_LIKE_b
+MAR_f /= 2
+MAR_f /= AR_LIKE_u
+MAR_f /= AR_LIKE_i
+MAR_f /= AR_LIKE_f
+
+MAR_c /= AR_LIKE_b
+MAR_c /= AR_LIKE_u
+MAR_c /= AR_LIKE_i
+MAR_c /= AR_LIKE_f
+MAR_c /= AR_LIKE_c
+
+MAR_td64 /= AR_LIKE_i
+
+# Inplace multiplication
+
+MAR_b *= AR_LIKE_b
+
+MAR_u *= AR_LIKE_b
+MAR_u *= AR_LIKE_u
+
+MAR_i *= AR_LIKE_b
+MAR_i *= 2
+MAR_i *= AR_LIKE_i
+
+MAR_f *= AR_LIKE_b
+MAR_f *= 2
+MAR_f *= AR_LIKE_u
+MAR_f *= AR_LIKE_i
+MAR_f *= AR_LIKE_f
+
+MAR_c *= AR_LIKE_b
+MAR_c *= AR_LIKE_u
+MAR_c *= AR_LIKE_i
+MAR_c *= AR_LIKE_f
+MAR_c *= AR_LIKE_c
+
+MAR_td64 *= AR_LIKE_b
+MAR_td64 *= AR_LIKE_u
+MAR_td64 *= AR_LIKE_i
+MAR_td64 *= AR_LIKE_f
+
+MAR_S *= 2
+MAR_U *= 2
+MAR_T *= 2
+
+# Inplace power
+
+MAR_u **= AR_LIKE_b
+MAR_u **= AR_LIKE_u
+
+MAR_i **= AR_LIKE_b
+MAR_i **= AR_LIKE_i
+
+MAR_f **= AR_LIKE_b
+MAR_f **= AR_LIKE_u
+MAR_f **= AR_LIKE_i
+MAR_f **= AR_LIKE_f
+
+MAR_c **= AR_LIKE_b
+MAR_c **= AR_LIKE_u
+MAR_c **= AR_LIKE_i
+MAR_c **= AR_LIKE_f
+MAR_c **= AR_LIKE_c
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/mod.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/mod.py
new file mode 100644
index 0000000000000000000000000000000000000000..1d151ddc85940c10a8b6a4b862099082210d7cf9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/mod.py
@@ -0,0 +1,149 @@
+import numpy as np
+
+f8 = np.float64(1)
+i8 = np.int64(1)
+u8 = np.uint64(1)
+
+f4 = np.float32(1)
+i4 = np.int32(1)
+u4 = np.uint32(1)
+
+td = np.timedelta64(1, "D")
+b_ = np.bool(1)
+
+b = bool(1)
+f = float(1)
+i = 1
+
+AR = np.array([1], dtype=np.bool)
+AR.setflags(write=False)
+
+AR2 = np.array([1], dtype=np.timedelta64)
+AR2.setflags(write=False)
+
+# Time structures
+
+td % td
+td % AR2
+AR2 % td
+
+divmod(td, td)
+divmod(td, AR2)
+divmod(AR2, td)
+
+# Bool
+
+b_ % b
+b_ % i
+b_ % f
+b_ % b_
+b_ % i8
+b_ % u8
+b_ % f8
+b_ % AR
+
+divmod(b_, b)
+divmod(b_, i)
+divmod(b_, f)
+divmod(b_, b_)
+divmod(b_, i8)
+divmod(b_, u8)
+divmod(b_, f8)
+divmod(b_, AR)
+
+b % b_
+i % b_
+f % b_
+b_ % b_
+i8 % b_
+u8 % b_
+f8 % b_
+AR % b_
+
+divmod(b, b_)
+divmod(i, b_)
+divmod(f, b_)
+divmod(b_, b_)
+divmod(i8, b_)
+divmod(u8, b_)
+divmod(f8, b_)
+divmod(AR, b_)
+
+# int
+
+i8 % b
+i8 % i
+i8 % f
+i8 % i8
+i8 % f8
+i4 % i8
+i4 % f8
+i4 % i4
+i4 % f4
+i8 % AR
+
+divmod(i8, b)
+divmod(i8, i)
+divmod(i8, f)
+divmod(i8, i8)
+divmod(i8, f8)
+divmod(i8, i4)
+divmod(i8, f4)
+divmod(i4, i4)
+divmod(i4, f4)
+divmod(i8, AR)
+
+b % i8
+i % i8
+f % i8
+i8 % i8
+f8 % i8
+i8 % i4
+f8 % i4
+i4 % i4
+f4 % i4
+AR % i8
+
+divmod(b, i8)
+divmod(i, i8)
+divmod(f, i8)
+divmod(i8, i8)
+divmod(f8, i8)
+divmod(i4, i8)
+divmod(f4, i8)
+divmod(i4, i4)
+divmod(f4, i4)
+divmod(AR, i8)
+
+# float
+
+f8 % b
+f8 % i
+f8 % f
+i8 % f4
+f4 % f4
+f8 % AR
+
+divmod(f8, b)
+divmod(f8, i)
+divmod(f8, f)
+divmod(f8, f8)
+divmod(f8, f4)
+divmod(f4, f4)
+divmod(f8, AR)
+
+b % f8
+i % f8
+f % f8
+f8 % f8
+f8 % f8
+f4 % f4
+AR % f8
+
+divmod(b, f8)
+divmod(i, f8)
+divmod(f, f8)
+divmod(f8, f8)
+divmod(f4, f8)
+divmod(f4, f4)
+divmod(AR, f8)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/modules.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/modules.py
new file mode 100644
index 0000000000000000000000000000000000000000..93c7a9a568a3a04f89a381cd8a46b574b23002f5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/modules.py
@@ -0,0 +1,45 @@
+import numpy as np
+from numpy import f2py
+
+np.char
+np.ctypeslib
+np.emath
+np.fft
+np.lib
+np.linalg
+np.ma
+np.matrixlib
+np.polynomial
+np.random
+np.rec
+np.strings
+np.testing
+np.version
+
+np.lib.format
+np.lib.mixins
+np.lib.scimath
+np.lib.stride_tricks
+np.lib.array_utils
+np.ma.extras
+np.polynomial.chebyshev
+np.polynomial.hermite
+np.polynomial.hermite_e
+np.polynomial.laguerre
+np.polynomial.legendre
+np.polynomial.polynomial
+
+np.__path__
+np.__version__
+
+np.__all__
+np.char.__all__
+np.ctypeslib.__all__
+np.emath.__all__
+np.lib.__all__
+np.ma.__all__
+np.random.__all__
+np.rec.__all__
+np.strings.__all__
+np.testing.__all__
+f2py.__all__
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/multiarray.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/multiarray.py
new file mode 100644
index 0000000000000000000000000000000000000000..15cae7f1d1fdfcedf28c73caed462d74d6ceeed1
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/multiarray.py
@@ -0,0 +1,77 @@
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64] = np.array([1.0])
+AR_i4 = np.array([1], dtype=np.int32)
+AR_u1 = np.array([1], dtype=np.uint8)
+
+AR_LIKE_f = [1.5]
+AR_LIKE_i = [1]
+
+b_f8 = np.broadcast(AR_f8)
+b_i4_f8_f8 = np.broadcast(AR_i4, AR_f8, AR_f8)
+
+next(b_f8)
+b_f8.reset()
+b_f8.index
+b_f8.iters
+b_f8.nd
+b_f8.ndim
+b_f8.numiter
+b_f8.shape
+b_f8.size
+
+next(b_i4_f8_f8)
+b_i4_f8_f8.reset()
+b_i4_f8_f8.ndim
+b_i4_f8_f8.index
+b_i4_f8_f8.iters
+b_i4_f8_f8.nd
+b_i4_f8_f8.numiter
+b_i4_f8_f8.shape
+b_i4_f8_f8.size
+
+np.inner(AR_f8, AR_i4)
+
+np.where([True, True, False])
+np.where([True, True, False], 1, 0)
+
+np.lexsort([0, 1, 2])
+
+np.can_cast(np.dtype("i8"), int)
+np.can_cast(AR_f8, "f8")
+np.can_cast(AR_f8, np.complex128, casting="unsafe")
+
+np.min_scalar_type([1])
+np.min_scalar_type(AR_f8)
+
+np.result_type(int, AR_i4)
+np.result_type(AR_f8, AR_u1)
+np.result_type(AR_f8, np.complex128)
+
+np.dot(AR_LIKE_f, AR_i4)
+np.dot(AR_u1, 1)
+np.dot(1.5j, 1)
+np.dot(AR_u1, 1, out=AR_f8)
+
+np.vdot(AR_LIKE_f, AR_i4)
+np.vdot(AR_u1, 1)
+np.vdot(1.5j, 1)
+
+np.bincount(AR_i4)
+
+np.copyto(AR_f8, [1.6])
+
+np.putmask(AR_f8, [True], 1.5)
+
+np.packbits(AR_i4)
+np.packbits(AR_u1)
+
+np.unpackbits(AR_u1)
+
+np.shares_memory(1, 2)
+np.shares_memory(AR_f8, AR_f8, max_work=-1)
+
+np.may_share_memory(1, 2)
+np.may_share_memory(AR_f8, AR_f8, max_work=0)
+np.may_share_memory(AR_f8, AR_f8, max_work=-1)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_conversion.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_conversion.py
new file mode 100644
index 0000000000000000000000000000000000000000..0dcb3ec601096b26746bce619c35e9dd960c7bb9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_conversion.py
@@ -0,0 +1,81 @@
+import os
+import tempfile
+
+import numpy as np
+
+nd = np.array([[1, 2], [3, 4]])
+scalar_array = np.array(1)
+
+# item
+scalar_array.item()
+nd.item(1)
+nd.item(0, 1)
+nd.item((0, 1))
+
+# tobytes
+nd.tobytes()
+nd.tobytes("C")
+nd.tobytes(None)
+
+# tofile
+if os.name != "nt":
+    with tempfile.NamedTemporaryFile(suffix=".txt") as tmp:
+        nd.tofile(tmp.name)
+        nd.tofile(tmp.name, "")
+        nd.tofile(tmp.name, sep="")
+
+        nd.tofile(tmp.name, "", "%s")
+        nd.tofile(tmp.name, format="%s")
+
+        nd.tofile(tmp)
+
+# dump is pretty simple
+# dumps is pretty simple
+
+# astype
+nd.astype("float")
+nd.astype(float)
+
+nd.astype(float, "K")
+nd.astype(float, order="K")
+
+nd.astype(float, "K", "unsafe")
+nd.astype(float, casting="unsafe")
+
+nd.astype(float, "K", "unsafe", True)
+nd.astype(float, subok=True)
+
+nd.astype(float, "K", "unsafe", True, True)
+nd.astype(float, copy=True)
+
+# byteswap
+nd.byteswap()
+nd.byteswap(True)
+
+# copy
+nd.copy()
+nd.copy("C")
+
+# view
+nd.view()
+nd.view(np.int64)
+nd.view(dtype=np.int64)
+nd.view(np.int64, np.matrix)
+nd.view(type=np.matrix)
+
+# getfield
+complex_array = np.array([[1 + 1j, 0], [0, 1 - 1j]], dtype=np.complex128)
+
+complex_array.getfield("float")
+complex_array.getfield(float)
+
+complex_array.getfield("float", 8)
+complex_array.getfield(float, offset=8)
+
+# setflags
+nd.setflags()
+nd.setflags(write=True)
+nd.setflags(write=True, align=True)
+nd.setflags(write=True, align=True, uic=False)
+
+# fill is pretty simple
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_misc.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_misc.py
new file mode 100644
index 0000000000000000000000000000000000000000..d2da037070a337cc2ff9e2dd7633832e7aa36d06
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_misc.py
@@ -0,0 +1,199 @@
+"""
+Tests for miscellaneous (non-magic) ``np.ndarray``/``np.generic`` methods.
+
+More extensive tests are performed for the methods'
+function-based counterpart in `../from_numeric.py`.
+
+"""
+
+from __future__ import annotations
+
+import operator
+from collections.abc import Hashable
+from typing import Any, cast
+
+import numpy as np
+import numpy.typing as npt
+
+
+class SubClass(npt.NDArray[np.float64]): ...
+class IntSubClass(npt.NDArray[np.intp]): ...
+
+
+i4 = np.int32(1)
+A: np.ndarray[Any, np.dtype[np.int32]] = np.array([[1]], dtype=np.int32)
+B0 = np.empty((), dtype=np.int32).view(SubClass)
+B1 = np.empty((1,), dtype=np.int32).view(SubClass)
+B2 = np.empty((1, 1), dtype=np.int32).view(SubClass)
+B_int0: IntSubClass = np.empty((), dtype=np.intp).view(IntSubClass)
+C: np.ndarray[Any, np.dtype[np.int32]] = np.array([0, 1, 2], dtype=np.int32)
+D = np.ones(3).view(SubClass)
+
+ctypes_obj = A.ctypes
+
+i4.all()
+A.all()
+A.all(axis=0)
+A.all(keepdims=True)
+A.all(out=B0)
+
+i4.any()
+A.any()
+A.any(axis=0)
+A.any(keepdims=True)
+A.any(out=B0)
+
+i4.argmax()
+A.argmax()
+A.argmax(axis=0)
+A.argmax(out=B_int0)
+
+i4.argmin()
+A.argmin()
+A.argmin(axis=0)
+A.argmin(out=B_int0)
+
+i4.argsort()
+i4.argsort(stable=True)
+A.argsort()
+A.argsort(stable=True)
+
+A.sort()
+A.sort(stable=True)
+
+i4.choose([()])
+_choices = np.array([[0, 1, 2], [3, 4, 5], [6, 7, 8]], dtype=np.int32)
+C.choose(_choices)
+C.choose(_choices, out=D)
+
+i4.clip(1)
+A.clip(1)
+A.clip(None, 1)
+A.clip(1, out=B2)
+A.clip(None, 1, out=B2)
+
+i4.compress([1])
+A.compress([1])
+A.compress([1], out=B1)
+
+i4.conj()
+A.conj()
+B0.conj()
+
+i4.conjugate()
+A.conjugate()
+B0.conjugate()
+
+i4.cumprod()
+A.cumprod()
+A.cumprod(out=B1)
+
+i4.cumsum()
+A.cumsum()
+A.cumsum(out=B1)
+
+i4.max()
+A.max()
+A.max(axis=0)
+A.max(keepdims=True)
+A.max(out=B0)
+
+i4.mean()
+A.mean()
+A.mean(axis=0)
+A.mean(keepdims=True)
+A.mean(out=B0)
+
+i4.min()
+A.min()
+A.min(axis=0)
+A.min(keepdims=True)
+A.min(out=B0)
+
+i4.prod()
+A.prod()
+A.prod(axis=0)
+A.prod(keepdims=True)
+A.prod(out=B0)
+
+i4.round()
+A.round()
+A.round(out=B2)
+
+i4.repeat(1)
+A.repeat(1)
+B0.repeat(1)
+
+i4.std()
+A.std()
+A.std(axis=0)
+A.std(keepdims=True, mean=0.)
+A.std(out=B0.astype(np.float64))
+
+i4.sum()
+A.sum()
+A.sum(axis=0)
+A.sum(keepdims=True)
+A.sum(out=B0)
+
+i4.take(0)
+A.take(0)
+A.take([0])
+A.take(0, out=B0)
+A.take([0], out=B1)
+
+i4.var()
+A.var()
+A.var(axis=0)
+A.var(keepdims=True, mean=0.)
+A.var(out=B0)
+
+A.argpartition([0])
+
+A.diagonal()
+
+A.dot(1)
+A.dot(1, out=B2)
+
+A.nonzero()
+
+C.searchsorted(1)
+
+A.trace()
+A.trace(out=B0)
+
+void = cast(np.void, np.array(1, dtype=[("f", np.float64)]).take(0))
+void.setfield(10, np.float64)
+
+A.item(0)
+C.item(0)
+
+A.ravel()
+C.ravel()
+
+A.flatten()
+C.flatten()
+
+A.reshape(1)
+C.reshape(3)
+
+int(np.array(1.0, dtype=np.float64))
+int(np.array("1", dtype=np.str_))
+
+float(np.array(1.0, dtype=np.float64))
+float(np.array("1", dtype=np.str_))
+
+complex(np.array(1.0, dtype=np.float64))
+
+operator.index(np.array(1, dtype=np.int64))
+
+# this fails on numpy 2.2.1
+# https://github.com/scipy/scipy/blob/a755ee77ec47a64849abe42c349936475a6c2f24/scipy/io/arff/tests/test_arffread.py#L41-L44
+A_float = np.array([[1, 5], [2, 4], [np.nan, np.nan]])
+A_void: npt.NDArray[np.void] = np.empty(3, [("yop", float), ("yap", float)])
+A_void["yop"] = A_float[:, 0]
+A_void["yap"] = A_float[:, 1]
+
+# regression test for https://github.com/numpy/numpy/issues/30445
+def f(x: np.generic) -> Hashable:
+    return x
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_shape_manipulation.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_shape_manipulation.py
new file mode 100644
index 0000000000000000000000000000000000000000..179d043db725bce8f3b6948c83cd4e08552dd537
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ndarray_shape_manipulation.py
@@ -0,0 +1,47 @@
+import numpy as np
+
+nd1 = np.array([[1, 2], [3, 4]])
+
+# reshape
+nd1.reshape(4)
+nd1.reshape(2, 2)
+nd1.reshape((2, 2))
+
+nd1.reshape((2, 2), order="C")
+nd1.reshape(4, order="C")
+
+# resize
+nd1.resize()
+nd1.resize(4)
+nd1.resize(2, 2)
+nd1.resize((2, 2))
+
+nd1.resize((2, 2), refcheck=True)
+nd1.resize(4, refcheck=True)
+
+nd2 = np.array([[1, 2], [3, 4]])
+
+# transpose
+nd2.transpose()
+nd2.transpose(1, 0)
+nd2.transpose((1, 0))
+
+# swapaxes
+nd2.swapaxes(0, 1)
+
+# flatten
+nd2.flatten()
+nd2.flatten("C")
+
+# ravel
+nd2.ravel()
+nd2.ravel("C")
+
+# squeeze
+nd2.squeeze()
+
+nd3 = np.array([[1, 2]])
+nd3.squeeze(0)
+
+nd4 = np.array([[[1, 2]]])
+nd4.squeeze((0, 1))
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/nditer.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/nditer.py
new file mode 100644
index 0000000000000000000000000000000000000000..bd02da65fb390378b9babfd863cca55731f1c8dc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/nditer.py
@@ -0,0 +1,4 @@
+import numpy as np
+
+arr = np.array([1])
+np.nditer([arr, None])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/numeric.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/numeric.py
new file mode 100644
index 0000000000000000000000000000000000000000..e5f0b1fdc59d6bd418e0859da62571f9317ccaea
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/numeric.py
@@ -0,0 +1,90 @@
+"""
+Tests for :mod:`numpy._core.numeric`.
+
+Does not include tests which fall under ``array_constructors``.
+"""
+
+from typing import Any
+
+import numpy as np
+
+
+class SubClass(np.ndarray[tuple[Any, ...], np.dtype[np.float64]]): ...
+
+
+i8 = np.int64(1)
+
+A = np.arange(27).reshape(3, 3, 3)
+B = A.tolist()
+C = np.empty((27, 27)).view(SubClass)
+
+np.count_nonzero(i8)
+np.count_nonzero(A)
+np.count_nonzero(B)
+np.count_nonzero(A, keepdims=True)
+np.count_nonzero(A, axis=0)
+
+np.isfortran(i8)
+np.isfortran(A)
+
+np.argwhere(i8)
+np.argwhere(A)
+
+np.flatnonzero(i8)
+np.flatnonzero(A)
+
+np.correlate(B[0][0], A.ravel(), mode="valid")
+np.correlate(A.ravel(), A.ravel(), mode="same")
+
+np.convolve(B[0][0], A.ravel(), mode="valid")
+np.convolve(A.ravel(), A.ravel(), mode="same")
+
+np.outer(i8, A)
+np.outer(B, A)
+np.outer(A, A)
+np.outer(A, A, out=C)
+
+np.tensordot(B, A)
+np.tensordot(A, A)
+np.tensordot(A, A, axes=0)
+np.tensordot(A, A, axes=(0, 1))
+
+np.isscalar(i8)
+np.isscalar(A)
+np.isscalar(B)
+
+np.roll(A, 1)
+np.roll(A, (1, 2))
+np.roll(B, 1)
+
+np.rollaxis(A, 0, 1)
+
+np.moveaxis(A, 0, 1)
+np.moveaxis(A, (0, 1), (1, 2))
+
+np.cross(B, A)
+np.cross(A, A)
+
+np.indices([0, 1, 2])
+np.indices([0, 1, 2], sparse=False)
+np.indices([0, 1, 2], sparse=True)
+
+np.binary_repr(1)
+
+np.base_repr(1)
+
+np.allclose(i8, A)
+np.allclose(B, A)
+np.allclose(A, A)
+
+np.isclose(i8, A)
+np.isclose(B, A)
+np.isclose(A, A)
+
+np.array_equal(i8, A)
+np.array_equal(B, A)
+np.array_equal(A, A)
+
+np.array_equiv(i8, A)
+np.array_equiv(B, A)
+np.array_equiv(A, A)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/numerictypes.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/numerictypes.py
new file mode 100644
index 0000000000000000000000000000000000000000..1b8f45629191bbb89a2d67011bffbab944b5a68e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/numerictypes.py
@@ -0,0 +1,17 @@
+import numpy as np
+
+np.isdtype(np.float64, (np.int64, np.float64))
+np.isdtype(np.int64, "signed integer")
+
+np.issubdtype("S1", np.bytes_)
+np.issubdtype(np.float64, np.float32)
+
+np.ScalarType
+np.ScalarType[0]
+np.ScalarType[3]
+np.ScalarType[8]
+np.ScalarType[10]
+
+np.typecodes["Character"]
+np.typecodes["Complex"]
+np.typecodes["All"]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/random.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/random.py
new file mode 100644
index 0000000000000000000000000000000000000000..ccc6fe3aee4c15adf25b475bc0334bb7712c324d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/random.py
@@ -0,0 +1,1498 @@
+from __future__ import annotations
+
+from typing import Any
+
+import numpy as np
+
+SEED_NONE = None
+SEED_INT = 4579435749574957634658964293569
+SEED_ARR: np.ndarray[Any, np.dtype[np.int64]] = np.array([1, 2, 3, 4], dtype=np.int64)
+SEED_ARRLIKE: list[int] = [1, 2, 3, 4]
+SEED_SEED_SEQ: np.random.SeedSequence = np.random.SeedSequence(0)
+SEED_MT19937: np.random.MT19937 = np.random.MT19937(0)
+SEED_PCG64: np.random.PCG64 = np.random.PCG64(0)
+SEED_PHILOX: np.random.Philox = np.random.Philox(0)
+SEED_SFC64: np.random.SFC64 = np.random.SFC64(0)
+
+# default rng
+np.random.default_rng()
+np.random.default_rng(SEED_NONE)
+np.random.default_rng(SEED_INT)
+np.random.default_rng(SEED_ARR)
+np.random.default_rng(SEED_ARRLIKE)
+np.random.default_rng(SEED_SEED_SEQ)
+np.random.default_rng(SEED_MT19937)
+np.random.default_rng(SEED_PCG64)
+np.random.default_rng(SEED_PHILOX)
+np.random.default_rng(SEED_SFC64)
+
+# Seed Sequence
+np.random.SeedSequence(SEED_NONE)
+np.random.SeedSequence(SEED_INT)
+np.random.SeedSequence(SEED_ARR)
+np.random.SeedSequence(SEED_ARRLIKE)
+
+# Bit Generators
+np.random.MT19937(SEED_NONE)
+np.random.MT19937(SEED_INT)
+np.random.MT19937(SEED_ARR)
+np.random.MT19937(SEED_ARRLIKE)
+np.random.MT19937(SEED_SEED_SEQ)
+
+np.random.PCG64(SEED_NONE)
+np.random.PCG64(SEED_INT)
+np.random.PCG64(SEED_ARR)
+np.random.PCG64(SEED_ARRLIKE)
+np.random.PCG64(SEED_SEED_SEQ)
+
+np.random.Philox(SEED_NONE)
+np.random.Philox(SEED_INT)
+np.random.Philox(SEED_ARR)
+np.random.Philox(SEED_ARRLIKE)
+np.random.Philox(SEED_SEED_SEQ)
+
+np.random.SFC64(SEED_NONE)
+np.random.SFC64(SEED_INT)
+np.random.SFC64(SEED_ARR)
+np.random.SFC64(SEED_ARRLIKE)
+np.random.SFC64(SEED_SEED_SEQ)
+
+seed_seq: np.random.bit_generator.SeedSequence = np.random.SeedSequence(SEED_NONE)
+seed_seq.spawn(10)
+seed_seq.generate_state(3)
+seed_seq.generate_state(3, "u4")
+seed_seq.generate_state(3, "uint32")
+seed_seq.generate_state(3, "u8")
+seed_seq.generate_state(3, "uint64")
+seed_seq.generate_state(3, np.uint32)
+seed_seq.generate_state(3, np.uint64)
+
+
+def_gen: np.random.Generator = np.random.default_rng()
+
+D_arr_0p1: np.ndarray[Any, np.dtype[np.float64]] = np.array([0.1])
+D_arr_0p5: np.ndarray[Any, np.dtype[np.float64]] = np.array([0.5])
+D_arr_0p9: np.ndarray[Any, np.dtype[np.float64]] = np.array([0.9])
+D_arr_1p5: np.ndarray[Any, np.dtype[np.float64]] = np.array([1.5])
+I_arr_10: np.ndarray[Any, np.dtype[np.int_]] = np.array([10], dtype=np.int_)
+I_arr_20: np.ndarray[Any, np.dtype[np.int_]] = np.array([20], dtype=np.int_)
+D_arr_like_0p1: list[float] = [0.1]
+D_arr_like_0p5: list[float] = [0.5]
+D_arr_like_0p9: list[float] = [0.9]
+D_arr_like_1p5: list[float] = [1.5]
+I_arr_like_10: list[int] = [10]
+I_arr_like_20: list[int] = [20]
+D_2D_like: list[list[float]] = [[1, 2], [2, 3], [3, 4], [4, 5.1]]
+D_2D: np.ndarray[Any, np.dtype[np.float64]] = np.array(D_2D_like)
+
+S_out: np.ndarray[Any, np.dtype[np.float32]] = np.empty(1, dtype=np.float32)
+D_out: np.ndarray[Any, np.dtype[np.float64]] = np.empty(1)
+
+def_gen.standard_normal()
+def_gen.standard_normal(dtype=np.float32)
+def_gen.standard_normal(dtype="float32")
+def_gen.standard_normal(dtype="double")
+def_gen.standard_normal(dtype=np.float64)
+def_gen.standard_normal(size=None)
+def_gen.standard_normal(size=1)
+def_gen.standard_normal(size=1, dtype=np.float32)
+def_gen.standard_normal(size=1, dtype="f4")
+def_gen.standard_normal(size=1, dtype="float32", out=S_out)
+def_gen.standard_normal(dtype=np.float32, out=S_out)
+def_gen.standard_normal(size=1, dtype=np.float64)
+def_gen.standard_normal(size=1, dtype="float64")
+def_gen.standard_normal(size=1, dtype="f8")
+def_gen.standard_normal(out=D_out)
+def_gen.standard_normal(size=1, dtype="float64")
+def_gen.standard_normal(size=1, dtype="float64", out=D_out)
+
+def_gen.random()
+def_gen.random(dtype=np.float32)
+def_gen.random(dtype="float32")
+def_gen.random(dtype="double")
+def_gen.random(dtype=np.float64)
+def_gen.random(size=None)
+def_gen.random(size=1)
+def_gen.random(size=1, dtype=np.float32)
+def_gen.random(size=1, dtype="f4")
+def_gen.random(size=1, dtype="float32", out=S_out)
+def_gen.random(dtype=np.float32, out=S_out)
+def_gen.random(size=1, dtype=np.float64)
+def_gen.random(size=1, dtype="float64")
+def_gen.random(size=1, dtype="f8")
+def_gen.random(out=D_out)
+def_gen.random(size=1, dtype="float64")
+def_gen.random(size=1, dtype="float64", out=D_out)
+
+def_gen.standard_cauchy()
+def_gen.standard_cauchy(size=None)
+def_gen.standard_cauchy(size=1)
+
+def_gen.standard_exponential()
+def_gen.standard_exponential(method="inv")
+def_gen.standard_exponential(dtype=np.float32)
+def_gen.standard_exponential(dtype="float32")
+def_gen.standard_exponential(dtype="double")
+def_gen.standard_exponential(dtype=np.float64)
+def_gen.standard_exponential(size=None)
+def_gen.standard_exponential(size=None, method="inv")
+def_gen.standard_exponential(size=1, method="inv")
+def_gen.standard_exponential(size=1, dtype=np.float32)
+def_gen.standard_exponential(size=1, dtype="f4", method="inv")
+def_gen.standard_exponential(size=1, dtype="float32", out=S_out)
+def_gen.standard_exponential(dtype=np.float32, out=S_out)
+def_gen.standard_exponential(size=1, dtype=np.float64, method="inv")
+def_gen.standard_exponential(size=1, dtype="float64")
+def_gen.standard_exponential(size=1, dtype="f8")
+def_gen.standard_exponential(out=D_out)
+def_gen.standard_exponential(size=1, dtype="float64")
+def_gen.standard_exponential(size=1, dtype="float64", out=D_out)
+
+def_gen.zipf(1.5)
+def_gen.zipf(1.5, size=None)
+def_gen.zipf(1.5, size=1)
+def_gen.zipf(D_arr_1p5)
+def_gen.zipf(D_arr_1p5, size=1)
+def_gen.zipf(D_arr_like_1p5)
+def_gen.zipf(D_arr_like_1p5, size=1)
+
+def_gen.weibull(0.5)
+def_gen.weibull(0.5, size=None)
+def_gen.weibull(0.5, size=1)
+def_gen.weibull(D_arr_0p5)
+def_gen.weibull(D_arr_0p5, size=1)
+def_gen.weibull(D_arr_like_0p5)
+def_gen.weibull(D_arr_like_0p5, size=1)
+
+def_gen.standard_t(0.5)
+def_gen.standard_t(0.5, size=None)
+def_gen.standard_t(0.5, size=1)
+def_gen.standard_t(D_arr_0p5)
+def_gen.standard_t(D_arr_0p5, size=1)
+def_gen.standard_t(D_arr_like_0p5)
+def_gen.standard_t(D_arr_like_0p5, size=1)
+
+def_gen.poisson(0.5)
+def_gen.poisson(0.5, size=None)
+def_gen.poisson(0.5, size=1)
+def_gen.poisson(D_arr_0p5)
+def_gen.poisson(D_arr_0p5, size=1)
+def_gen.poisson(D_arr_like_0p5)
+def_gen.poisson(D_arr_like_0p5, size=1)
+
+def_gen.power(0.5)
+def_gen.power(0.5, size=None)
+def_gen.power(0.5, size=1)
+def_gen.power(D_arr_0p5)
+def_gen.power(D_arr_0p5, size=1)
+def_gen.power(D_arr_like_0p5)
+def_gen.power(D_arr_like_0p5, size=1)
+
+def_gen.pareto(0.5)
+def_gen.pareto(0.5, size=None)
+def_gen.pareto(0.5, size=1)
+def_gen.pareto(D_arr_0p5)
+def_gen.pareto(D_arr_0p5, size=1)
+def_gen.pareto(D_arr_like_0p5)
+def_gen.pareto(D_arr_like_0p5, size=1)
+
+def_gen.chisquare(0.5)
+def_gen.chisquare(0.5, size=None)
+def_gen.chisquare(0.5, size=1)
+def_gen.chisquare(D_arr_0p5)
+def_gen.chisquare(D_arr_0p5, size=1)
+def_gen.chisquare(D_arr_like_0p5)
+def_gen.chisquare(D_arr_like_0p5, size=1)
+
+def_gen.exponential(0.5)
+def_gen.exponential(0.5, size=None)
+def_gen.exponential(0.5, size=1)
+def_gen.exponential(D_arr_0p5)
+def_gen.exponential(D_arr_0p5, size=1)
+def_gen.exponential(D_arr_like_0p5)
+def_gen.exponential(D_arr_like_0p5, size=1)
+
+def_gen.geometric(0.5)
+def_gen.geometric(0.5, size=None)
+def_gen.geometric(0.5, size=1)
+def_gen.geometric(D_arr_0p5)
+def_gen.geometric(D_arr_0p5, size=1)
+def_gen.geometric(D_arr_like_0p5)
+def_gen.geometric(D_arr_like_0p5, size=1)
+
+def_gen.logseries(0.5)
+def_gen.logseries(0.5, size=None)
+def_gen.logseries(0.5, size=1)
+def_gen.logseries(D_arr_0p5)
+def_gen.logseries(D_arr_0p5, size=1)
+def_gen.logseries(D_arr_like_0p5)
+def_gen.logseries(D_arr_like_0p5, size=1)
+
+def_gen.rayleigh(0.5)
+def_gen.rayleigh(0.5, size=None)
+def_gen.rayleigh(0.5, size=1)
+def_gen.rayleigh(D_arr_0p5)
+def_gen.rayleigh(D_arr_0p5, size=1)
+def_gen.rayleigh(D_arr_like_0p5)
+def_gen.rayleigh(D_arr_like_0p5, size=1)
+
+def_gen.standard_gamma(0.5)
+def_gen.standard_gamma(0.5, size=None)
+def_gen.standard_gamma(0.5, dtype="float32")
+def_gen.standard_gamma(0.5, size=None, dtype="float32")
+def_gen.standard_gamma(0.5, size=1)
+def_gen.standard_gamma(D_arr_0p5)
+def_gen.standard_gamma(D_arr_0p5, dtype="f4")
+def_gen.standard_gamma(0.5, size=1, dtype="float32", out=S_out)
+def_gen.standard_gamma(D_arr_0p5, dtype=np.float32, out=S_out)
+def_gen.standard_gamma(D_arr_0p5, size=1)
+def_gen.standard_gamma(D_arr_like_0p5)
+def_gen.standard_gamma(D_arr_like_0p5, size=1)
+def_gen.standard_gamma(0.5, out=D_out)
+def_gen.standard_gamma(D_arr_like_0p5, out=D_out)
+def_gen.standard_gamma(D_arr_like_0p5, size=1)
+def_gen.standard_gamma(D_arr_like_0p5, size=1, out=D_out, dtype=np.float64)
+
+def_gen.vonmises(0.5, 0.5)
+def_gen.vonmises(0.5, 0.5, size=None)
+def_gen.vonmises(0.5, 0.5, size=1)
+def_gen.vonmises(D_arr_0p5, 0.5)
+def_gen.vonmises(0.5, D_arr_0p5)
+def_gen.vonmises(D_arr_0p5, 0.5, size=1)
+def_gen.vonmises(0.5, D_arr_0p5, size=1)
+def_gen.vonmises(D_arr_like_0p5, 0.5)
+def_gen.vonmises(0.5, D_arr_like_0p5)
+def_gen.vonmises(D_arr_0p5, D_arr_0p5)
+def_gen.vonmises(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.vonmises(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.vonmises(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.wald(0.5, 0.5)
+def_gen.wald(0.5, 0.5, size=None)
+def_gen.wald(0.5, 0.5, size=1)
+def_gen.wald(D_arr_0p5, 0.5)
+def_gen.wald(0.5, D_arr_0p5)
+def_gen.wald(D_arr_0p5, 0.5, size=1)
+def_gen.wald(0.5, D_arr_0p5, size=1)
+def_gen.wald(D_arr_like_0p5, 0.5)
+def_gen.wald(0.5, D_arr_like_0p5)
+def_gen.wald(D_arr_0p5, D_arr_0p5)
+def_gen.wald(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.wald(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.wald(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.uniform(0.5, 0.5)
+def_gen.uniform(0.5, 0.5, size=None)
+def_gen.uniform(0.5, 0.5, size=1)
+def_gen.uniform(D_arr_0p5, 0.5)
+def_gen.uniform(0.5, D_arr_0p5)
+def_gen.uniform(D_arr_0p5, 0.5, size=1)
+def_gen.uniform(0.5, D_arr_0p5, size=1)
+def_gen.uniform(D_arr_like_0p5, 0.5)
+def_gen.uniform(0.5, D_arr_like_0p5)
+def_gen.uniform(D_arr_0p5, D_arr_0p5)
+def_gen.uniform(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.uniform(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.uniform(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.beta(0.5, 0.5)
+def_gen.beta(0.5, 0.5, size=None)
+def_gen.beta(0.5, 0.5, size=1)
+def_gen.beta(D_arr_0p5, 0.5)
+def_gen.beta(0.5, D_arr_0p5)
+def_gen.beta(D_arr_0p5, 0.5, size=1)
+def_gen.beta(0.5, D_arr_0p5, size=1)
+def_gen.beta(D_arr_like_0p5, 0.5)
+def_gen.beta(0.5, D_arr_like_0p5)
+def_gen.beta(D_arr_0p5, D_arr_0p5)
+def_gen.beta(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.beta(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.beta(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.f(0.5, 0.5)
+def_gen.f(0.5, 0.5, size=None)
+def_gen.f(0.5, 0.5, size=1)
+def_gen.f(D_arr_0p5, 0.5)
+def_gen.f(0.5, D_arr_0p5)
+def_gen.f(D_arr_0p5, 0.5, size=1)
+def_gen.f(0.5, D_arr_0p5, size=1)
+def_gen.f(D_arr_like_0p5, 0.5)
+def_gen.f(0.5, D_arr_like_0p5)
+def_gen.f(D_arr_0p5, D_arr_0p5)
+def_gen.f(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.f(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.f(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.gamma(0.5, 0.5)
+def_gen.gamma(0.5, 0.5, size=None)
+def_gen.gamma(0.5, 0.5, size=1)
+def_gen.gamma(D_arr_0p5, 0.5)
+def_gen.gamma(0.5, D_arr_0p5)
+def_gen.gamma(D_arr_0p5, 0.5, size=1)
+def_gen.gamma(0.5, D_arr_0p5, size=1)
+def_gen.gamma(D_arr_like_0p5, 0.5)
+def_gen.gamma(0.5, D_arr_like_0p5)
+def_gen.gamma(D_arr_0p5, D_arr_0p5)
+def_gen.gamma(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.gamma(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.gamma(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.gumbel(0.5, 0.5)
+def_gen.gumbel(0.5, 0.5, size=None)
+def_gen.gumbel(0.5, 0.5, size=1)
+def_gen.gumbel(D_arr_0p5, 0.5)
+def_gen.gumbel(0.5, D_arr_0p5)
+def_gen.gumbel(D_arr_0p5, 0.5, size=1)
+def_gen.gumbel(0.5, D_arr_0p5, size=1)
+def_gen.gumbel(D_arr_like_0p5, 0.5)
+def_gen.gumbel(0.5, D_arr_like_0p5)
+def_gen.gumbel(D_arr_0p5, D_arr_0p5)
+def_gen.gumbel(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.gumbel(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.gumbel(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.laplace(0.5, 0.5)
+def_gen.laplace(0.5, 0.5, size=None)
+def_gen.laplace(0.5, 0.5, size=1)
+def_gen.laplace(D_arr_0p5, 0.5)
+def_gen.laplace(0.5, D_arr_0p5)
+def_gen.laplace(D_arr_0p5, 0.5, size=1)
+def_gen.laplace(0.5, D_arr_0p5, size=1)
+def_gen.laplace(D_arr_like_0p5, 0.5)
+def_gen.laplace(0.5, D_arr_like_0p5)
+def_gen.laplace(D_arr_0p5, D_arr_0p5)
+def_gen.laplace(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.laplace(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.laplace(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.logistic(0.5, 0.5)
+def_gen.logistic(0.5, 0.5, size=None)
+def_gen.logistic(0.5, 0.5, size=1)
+def_gen.logistic(D_arr_0p5, 0.5)
+def_gen.logistic(0.5, D_arr_0p5)
+def_gen.logistic(D_arr_0p5, 0.5, size=1)
+def_gen.logistic(0.5, D_arr_0p5, size=1)
+def_gen.logistic(D_arr_like_0p5, 0.5)
+def_gen.logistic(0.5, D_arr_like_0p5)
+def_gen.logistic(D_arr_0p5, D_arr_0p5)
+def_gen.logistic(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.logistic(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.logistic(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.lognormal(0.5, 0.5)
+def_gen.lognormal(0.5, 0.5, size=None)
+def_gen.lognormal(0.5, 0.5, size=1)
+def_gen.lognormal(D_arr_0p5, 0.5)
+def_gen.lognormal(0.5, D_arr_0p5)
+def_gen.lognormal(D_arr_0p5, 0.5, size=1)
+def_gen.lognormal(0.5, D_arr_0p5, size=1)
+def_gen.lognormal(D_arr_like_0p5, 0.5)
+def_gen.lognormal(0.5, D_arr_like_0p5)
+def_gen.lognormal(D_arr_0p5, D_arr_0p5)
+def_gen.lognormal(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.lognormal(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.lognormal(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.noncentral_chisquare(0.5, 0.5)
+def_gen.noncentral_chisquare(0.5, 0.5, size=None)
+def_gen.noncentral_chisquare(0.5, 0.5, size=1)
+def_gen.noncentral_chisquare(D_arr_0p5, 0.5)
+def_gen.noncentral_chisquare(0.5, D_arr_0p5)
+def_gen.noncentral_chisquare(D_arr_0p5, 0.5, size=1)
+def_gen.noncentral_chisquare(0.5, D_arr_0p5, size=1)
+def_gen.noncentral_chisquare(D_arr_like_0p5, 0.5)
+def_gen.noncentral_chisquare(0.5, D_arr_like_0p5)
+def_gen.noncentral_chisquare(D_arr_0p5, D_arr_0p5)
+def_gen.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.noncentral_chisquare(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.normal(0.5, 0.5)
+def_gen.normal(0.5, 0.5, size=None)
+def_gen.normal(0.5, 0.5, size=1)
+def_gen.normal(D_arr_0p5, 0.5)
+def_gen.normal(0.5, D_arr_0p5)
+def_gen.normal(D_arr_0p5, 0.5, size=1)
+def_gen.normal(0.5, D_arr_0p5, size=1)
+def_gen.normal(D_arr_like_0p5, 0.5)
+def_gen.normal(0.5, D_arr_like_0p5)
+def_gen.normal(D_arr_0p5, D_arr_0p5)
+def_gen.normal(D_arr_like_0p5, D_arr_like_0p5)
+def_gen.normal(D_arr_0p5, D_arr_0p5, size=1)
+def_gen.normal(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+def_gen.triangular(0.1, 0.5, 0.9)
+def_gen.triangular(0.1, 0.5, 0.9, size=None)
+def_gen.triangular(0.1, 0.5, 0.9, size=1)
+def_gen.triangular(D_arr_0p1, 0.5, 0.9)
+def_gen.triangular(0.1, D_arr_0p5, 0.9)
+def_gen.triangular(D_arr_0p1, 0.5, D_arr_like_0p9, size=1)
+def_gen.triangular(0.1, D_arr_0p5, 0.9, size=1)
+def_gen.triangular(D_arr_like_0p1, 0.5, D_arr_0p9)
+def_gen.triangular(0.5, D_arr_like_0p5, 0.9)
+def_gen.triangular(D_arr_0p1, D_arr_0p5, 0.9)
+def_gen.triangular(D_arr_like_0p1, D_arr_like_0p5, 0.9)
+def_gen.triangular(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1)
+def_gen.triangular(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1)
+
+def_gen.noncentral_f(0.1, 0.5, 0.9)
+def_gen.noncentral_f(0.1, 0.5, 0.9, size=None)
+def_gen.noncentral_f(0.1, 0.5, 0.9, size=1)
+def_gen.noncentral_f(D_arr_0p1, 0.5, 0.9)
+def_gen.noncentral_f(0.1, D_arr_0p5, 0.9)
+def_gen.noncentral_f(D_arr_0p1, 0.5, D_arr_like_0p9, size=1)
+def_gen.noncentral_f(0.1, D_arr_0p5, 0.9, size=1)
+def_gen.noncentral_f(D_arr_like_0p1, 0.5, D_arr_0p9)
+def_gen.noncentral_f(0.5, D_arr_like_0p5, 0.9)
+def_gen.noncentral_f(D_arr_0p1, D_arr_0p5, 0.9)
+def_gen.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, 0.9)
+def_gen.noncentral_f(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1)
+def_gen.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1)
+
+def_gen.binomial(10, 0.5)
+def_gen.binomial(10, 0.5, size=None)
+def_gen.binomial(10, 0.5, size=1)
+def_gen.binomial(I_arr_10, 0.5)
+def_gen.binomial(10, D_arr_0p5)
+def_gen.binomial(I_arr_10, 0.5, size=1)
+def_gen.binomial(10, D_arr_0p5, size=1)
+def_gen.binomial(I_arr_like_10, 0.5)
+def_gen.binomial(10, D_arr_like_0p5)
+def_gen.binomial(I_arr_10, D_arr_0p5)
+def_gen.binomial(I_arr_like_10, D_arr_like_0p5)
+def_gen.binomial(I_arr_10, D_arr_0p5, size=1)
+def_gen.binomial(I_arr_like_10, D_arr_like_0p5, size=1)
+
+def_gen.negative_binomial(10, 0.5)
+def_gen.negative_binomial(10, 0.5, size=None)
+def_gen.negative_binomial(10, 0.5, size=1)
+def_gen.negative_binomial(I_arr_10, 0.5)
+def_gen.negative_binomial(10, D_arr_0p5)
+def_gen.negative_binomial(I_arr_10, 0.5, size=1)
+def_gen.negative_binomial(10, D_arr_0p5, size=1)
+def_gen.negative_binomial(I_arr_like_10, 0.5)
+def_gen.negative_binomial(10, D_arr_like_0p5)
+def_gen.negative_binomial(I_arr_10, D_arr_0p5)
+def_gen.negative_binomial(I_arr_like_10, D_arr_like_0p5)
+def_gen.negative_binomial(I_arr_10, D_arr_0p5, size=1)
+def_gen.negative_binomial(I_arr_like_10, D_arr_like_0p5, size=1)
+
+def_gen.hypergeometric(20, 20, 10)
+def_gen.hypergeometric(20, 20, 10, size=None)
+def_gen.hypergeometric(20, 20, 10, size=1)
+def_gen.hypergeometric(I_arr_20, 20, 10)
+def_gen.hypergeometric(20, I_arr_20, 10)
+def_gen.hypergeometric(I_arr_20, 20, I_arr_like_10, size=1)
+def_gen.hypergeometric(20, I_arr_20, 10, size=1)
+def_gen.hypergeometric(I_arr_like_20, 20, I_arr_10)
+def_gen.hypergeometric(20, I_arr_like_20, 10)
+def_gen.hypergeometric(I_arr_20, I_arr_20, 10)
+def_gen.hypergeometric(I_arr_like_20, I_arr_like_20, 10)
+def_gen.hypergeometric(I_arr_20, I_arr_20, I_arr_10, size=1)
+def_gen.hypergeometric(I_arr_like_20, I_arr_like_20, I_arr_like_10, size=1)
+
+I_int64_100: np.ndarray[Any, np.dtype[np.int64]] = np.array([100], dtype=np.int64)
+
+def_gen.integers(0, 100)
+def_gen.integers(100)
+def_gen.integers([100])
+def_gen.integers(0, [100])
+
+I_bool_low: np.ndarray[Any, np.dtype[np.bool]] = np.array([0], dtype=np.bool)
+I_bool_low_like: list[int] = [0]
+I_bool_high_open: np.ndarray[Any, np.dtype[np.bool]] = np.array([1], dtype=np.bool)
+I_bool_high_closed: np.ndarray[Any, np.dtype[np.bool]] = np.array([1], dtype=np.bool)
+
+def_gen.integers(2, dtype=bool)
+def_gen.integers(0, 2, dtype=bool)
+def_gen.integers(1, dtype=bool, endpoint=True)
+def_gen.integers(0, 1, dtype=bool, endpoint=True)
+def_gen.integers(I_bool_low_like, 1, dtype=bool, endpoint=True)
+def_gen.integers(I_bool_high_open, dtype=bool)
+def_gen.integers(I_bool_low, I_bool_high_open, dtype=bool)
+def_gen.integers(0, I_bool_high_open, dtype=bool)
+def_gen.integers(I_bool_high_closed, dtype=bool, endpoint=True)
+def_gen.integers(I_bool_low, I_bool_high_closed, dtype=bool, endpoint=True)
+def_gen.integers(0, I_bool_high_closed, dtype=bool, endpoint=True)
+
+def_gen.integers(2, dtype=np.bool)
+def_gen.integers(0, 2, dtype=np.bool)
+def_gen.integers(1, dtype=np.bool, endpoint=True)
+def_gen.integers(0, 1, dtype=np.bool, endpoint=True)
+def_gen.integers(I_bool_low_like, 1, dtype=np.bool, endpoint=True)
+def_gen.integers(I_bool_high_open, dtype=np.bool)
+def_gen.integers(I_bool_low, I_bool_high_open, dtype=np.bool)
+def_gen.integers(0, I_bool_high_open, dtype=np.bool)
+def_gen.integers(I_bool_high_closed, dtype=np.bool, endpoint=True)
+def_gen.integers(I_bool_low, I_bool_high_closed, dtype=np.bool, endpoint=True)
+def_gen.integers(0, I_bool_high_closed, dtype=np.bool, endpoint=True)
+
+I_u1_low: np.ndarray[Any, np.dtype[np.uint8]] = np.array([0], dtype=np.uint8)
+I_u1_low_like: list[int] = [0]
+I_u1_high_open: np.ndarray[Any, np.dtype[np.uint8]] = np.array([255], dtype=np.uint8)
+I_u1_high_closed: np.ndarray[Any, np.dtype[np.uint8]] = np.array([255], dtype=np.uint8)
+
+def_gen.integers(256, dtype="u1")
+def_gen.integers(0, 256, dtype="u1")
+def_gen.integers(255, dtype="u1", endpoint=True)
+def_gen.integers(0, 255, dtype="u1", endpoint=True)
+def_gen.integers(I_u1_low_like, 255, dtype="u1", endpoint=True)
+def_gen.integers(I_u1_high_open, dtype="u1")
+def_gen.integers(I_u1_low, I_u1_high_open, dtype="u1")
+def_gen.integers(0, I_u1_high_open, dtype="u1")
+def_gen.integers(I_u1_high_closed, dtype="u1", endpoint=True)
+def_gen.integers(I_u1_low, I_u1_high_closed, dtype="u1", endpoint=True)
+def_gen.integers(0, I_u1_high_closed, dtype="u1", endpoint=True)
+
+def_gen.integers(256, dtype="uint8")
+def_gen.integers(0, 256, dtype="uint8")
+def_gen.integers(255, dtype="uint8", endpoint=True)
+def_gen.integers(0, 255, dtype="uint8", endpoint=True)
+def_gen.integers(I_u1_low_like, 255, dtype="uint8", endpoint=True)
+def_gen.integers(I_u1_high_open, dtype="uint8")
+def_gen.integers(I_u1_low, I_u1_high_open, dtype="uint8")
+def_gen.integers(0, I_u1_high_open, dtype="uint8")
+def_gen.integers(I_u1_high_closed, dtype="uint8", endpoint=True)
+def_gen.integers(I_u1_low, I_u1_high_closed, dtype="uint8", endpoint=True)
+def_gen.integers(0, I_u1_high_closed, dtype="uint8", endpoint=True)
+
+def_gen.integers(256, dtype=np.uint8)
+def_gen.integers(0, 256, dtype=np.uint8)
+def_gen.integers(255, dtype=np.uint8, endpoint=True)
+def_gen.integers(0, 255, dtype=np.uint8, endpoint=True)
+def_gen.integers(I_u1_low_like, 255, dtype=np.uint8, endpoint=True)
+def_gen.integers(I_u1_high_open, dtype=np.uint8)
+def_gen.integers(I_u1_low, I_u1_high_open, dtype=np.uint8)
+def_gen.integers(0, I_u1_high_open, dtype=np.uint8)
+def_gen.integers(I_u1_high_closed, dtype=np.uint8, endpoint=True)
+def_gen.integers(I_u1_low, I_u1_high_closed, dtype=np.uint8, endpoint=True)
+def_gen.integers(0, I_u1_high_closed, dtype=np.uint8, endpoint=True)
+
+I_u2_low: np.ndarray[Any, np.dtype[np.uint16]] = np.array([0], dtype=np.uint16)
+I_u2_low_like: list[int] = [0]
+I_u2_high_open: np.ndarray[Any, np.dtype[np.uint16]] = np.array([65535], dtype=np.uint16)
+I_u2_high_closed: np.ndarray[Any, np.dtype[np.uint16]] = np.array([65535], dtype=np.uint16)
+
+def_gen.integers(65536, dtype="u2")
+def_gen.integers(0, 65536, dtype="u2")
+def_gen.integers(65535, dtype="u2", endpoint=True)
+def_gen.integers(0, 65535, dtype="u2", endpoint=True)
+def_gen.integers(I_u2_low_like, 65535, dtype="u2", endpoint=True)
+def_gen.integers(I_u2_high_open, dtype="u2")
+def_gen.integers(I_u2_low, I_u2_high_open, dtype="u2")
+def_gen.integers(0, I_u2_high_open, dtype="u2")
+def_gen.integers(I_u2_high_closed, dtype="u2", endpoint=True)
+def_gen.integers(I_u2_low, I_u2_high_closed, dtype="u2", endpoint=True)
+def_gen.integers(0, I_u2_high_closed, dtype="u2", endpoint=True)
+
+def_gen.integers(65536, dtype="uint16")
+def_gen.integers(0, 65536, dtype="uint16")
+def_gen.integers(65535, dtype="uint16", endpoint=True)
+def_gen.integers(0, 65535, dtype="uint16", endpoint=True)
+def_gen.integers(I_u2_low_like, 65535, dtype="uint16", endpoint=True)
+def_gen.integers(I_u2_high_open, dtype="uint16")
+def_gen.integers(I_u2_low, I_u2_high_open, dtype="uint16")
+def_gen.integers(0, I_u2_high_open, dtype="uint16")
+def_gen.integers(I_u2_high_closed, dtype="uint16", endpoint=True)
+def_gen.integers(I_u2_low, I_u2_high_closed, dtype="uint16", endpoint=True)
+def_gen.integers(0, I_u2_high_closed, dtype="uint16", endpoint=True)
+
+def_gen.integers(65536, dtype=np.uint16)
+def_gen.integers(0, 65536, dtype=np.uint16)
+def_gen.integers(65535, dtype=np.uint16, endpoint=True)
+def_gen.integers(0, 65535, dtype=np.uint16, endpoint=True)
+def_gen.integers(I_u2_low_like, 65535, dtype=np.uint16, endpoint=True)
+def_gen.integers(I_u2_high_open, dtype=np.uint16)
+def_gen.integers(I_u2_low, I_u2_high_open, dtype=np.uint16)
+def_gen.integers(0, I_u2_high_open, dtype=np.uint16)
+def_gen.integers(I_u2_high_closed, dtype=np.uint16, endpoint=True)
+def_gen.integers(I_u2_low, I_u2_high_closed, dtype=np.uint16, endpoint=True)
+def_gen.integers(0, I_u2_high_closed, dtype=np.uint16, endpoint=True)
+
+I_u4_low: np.ndarray[Any, np.dtype[np.uint32]] = np.array([0], dtype=np.uint32)
+I_u4_low_like: list[int] = [0]
+I_u4_high_open: np.ndarray[Any, np.dtype[np.uint32]] = np.array([4294967295], dtype=np.uint32)
+I_u4_high_closed: np.ndarray[Any, np.dtype[np.uint32]] = np.array([4294967295], dtype=np.uint32)
+
+def_gen.integers(4294967296, dtype="u4")
+def_gen.integers(0, 4294967296, dtype="u4")
+def_gen.integers(4294967295, dtype="u4", endpoint=True)
+def_gen.integers(0, 4294967295, dtype="u4", endpoint=True)
+def_gen.integers(I_u4_low_like, 4294967295, dtype="u4", endpoint=True)
+def_gen.integers(I_u4_high_open, dtype="u4")
+def_gen.integers(I_u4_low, I_u4_high_open, dtype="u4")
+def_gen.integers(0, I_u4_high_open, dtype="u4")
+def_gen.integers(I_u4_high_closed, dtype="u4", endpoint=True)
+def_gen.integers(I_u4_low, I_u4_high_closed, dtype="u4", endpoint=True)
+def_gen.integers(0, I_u4_high_closed, dtype="u4", endpoint=True)
+
+def_gen.integers(4294967296, dtype="uint32")
+def_gen.integers(0, 4294967296, dtype="uint32")
+def_gen.integers(4294967295, dtype="uint32", endpoint=True)
+def_gen.integers(0, 4294967295, dtype="uint32", endpoint=True)
+def_gen.integers(I_u4_low_like, 4294967295, dtype="uint32", endpoint=True)
+def_gen.integers(I_u4_high_open, dtype="uint32")
+def_gen.integers(I_u4_low, I_u4_high_open, dtype="uint32")
+def_gen.integers(0, I_u4_high_open, dtype="uint32")
+def_gen.integers(I_u4_high_closed, dtype="uint32", endpoint=True)
+def_gen.integers(I_u4_low, I_u4_high_closed, dtype="uint32", endpoint=True)
+def_gen.integers(0, I_u4_high_closed, dtype="uint32", endpoint=True)
+
+def_gen.integers(4294967296, dtype=np.uint32)
+def_gen.integers(0, 4294967296, dtype=np.uint32)
+def_gen.integers(4294967295, dtype=np.uint32, endpoint=True)
+def_gen.integers(0, 4294967295, dtype=np.uint32, endpoint=True)
+def_gen.integers(I_u4_low_like, 4294967295, dtype=np.uint32, endpoint=True)
+def_gen.integers(I_u4_high_open, dtype=np.uint32)
+def_gen.integers(I_u4_low, I_u4_high_open, dtype=np.uint32)
+def_gen.integers(0, I_u4_high_open, dtype=np.uint32)
+def_gen.integers(I_u4_high_closed, dtype=np.uint32, endpoint=True)
+def_gen.integers(I_u4_low, I_u4_high_closed, dtype=np.uint32, endpoint=True)
+def_gen.integers(0, I_u4_high_closed, dtype=np.uint32, endpoint=True)
+
+I_u8_low: np.ndarray[Any, np.dtype[np.uint64]] = np.array([0], dtype=np.uint64)
+I_u8_low_like: list[int] = [0]
+I_u8_high_open: np.ndarray[Any, np.dtype[np.uint64]] = np.array([18446744073709551615], dtype=np.uint64)
+I_u8_high_closed: np.ndarray[Any, np.dtype[np.uint64]] = np.array([18446744073709551615], dtype=np.uint64)
+
+def_gen.integers(18446744073709551616, dtype="u8")
+def_gen.integers(0, 18446744073709551616, dtype="u8")
+def_gen.integers(18446744073709551615, dtype="u8", endpoint=True)
+def_gen.integers(0, 18446744073709551615, dtype="u8", endpoint=True)
+def_gen.integers(I_u8_low_like, 18446744073709551615, dtype="u8", endpoint=True)
+def_gen.integers(I_u8_high_open, dtype="u8")
+def_gen.integers(I_u8_low, I_u8_high_open, dtype="u8")
+def_gen.integers(0, I_u8_high_open, dtype="u8")
+def_gen.integers(I_u8_high_closed, dtype="u8", endpoint=True)
+def_gen.integers(I_u8_low, I_u8_high_closed, dtype="u8", endpoint=True)
+def_gen.integers(0, I_u8_high_closed, dtype="u8", endpoint=True)
+
+def_gen.integers(18446744073709551616, dtype="uint64")
+def_gen.integers(0, 18446744073709551616, dtype="uint64")
+def_gen.integers(18446744073709551615, dtype="uint64", endpoint=True)
+def_gen.integers(0, 18446744073709551615, dtype="uint64", endpoint=True)
+def_gen.integers(I_u8_low_like, 18446744073709551615, dtype="uint64", endpoint=True)
+def_gen.integers(I_u8_high_open, dtype="uint64")
+def_gen.integers(I_u8_low, I_u8_high_open, dtype="uint64")
+def_gen.integers(0, I_u8_high_open, dtype="uint64")
+def_gen.integers(I_u8_high_closed, dtype="uint64", endpoint=True)
+def_gen.integers(I_u8_low, I_u8_high_closed, dtype="uint64", endpoint=True)
+def_gen.integers(0, I_u8_high_closed, dtype="uint64", endpoint=True)
+
+def_gen.integers(18446744073709551616, dtype=np.uint64)
+def_gen.integers(0, 18446744073709551616, dtype=np.uint64)
+def_gen.integers(18446744073709551615, dtype=np.uint64, endpoint=True)
+def_gen.integers(0, 18446744073709551615, dtype=np.uint64, endpoint=True)
+def_gen.integers(I_u8_low_like, 18446744073709551615, dtype=np.uint64, endpoint=True)
+def_gen.integers(I_u8_high_open, dtype=np.uint64)
+def_gen.integers(I_u8_low, I_u8_high_open, dtype=np.uint64)
+def_gen.integers(0, I_u8_high_open, dtype=np.uint64)
+def_gen.integers(I_u8_high_closed, dtype=np.uint64, endpoint=True)
+def_gen.integers(I_u8_low, I_u8_high_closed, dtype=np.uint64, endpoint=True)
+def_gen.integers(0, I_u8_high_closed, dtype=np.uint64, endpoint=True)
+
+I_i1_low: np.ndarray[Any, np.dtype[np.int8]] = np.array([-128], dtype=np.int8)
+I_i1_low_like: list[int] = [-128]
+I_i1_high_open: np.ndarray[Any, np.dtype[np.int8]] = np.array([127], dtype=np.int8)
+I_i1_high_closed: np.ndarray[Any, np.dtype[np.int8]] = np.array([127], dtype=np.int8)
+
+def_gen.integers(128, dtype="i1")
+def_gen.integers(-128, 128, dtype="i1")
+def_gen.integers(127, dtype="i1", endpoint=True)
+def_gen.integers(-128, 127, dtype="i1", endpoint=True)
+def_gen.integers(I_i1_low_like, 127, dtype="i1", endpoint=True)
+def_gen.integers(I_i1_high_open, dtype="i1")
+def_gen.integers(I_i1_low, I_i1_high_open, dtype="i1")
+def_gen.integers(-128, I_i1_high_open, dtype="i1")
+def_gen.integers(I_i1_high_closed, dtype="i1", endpoint=True)
+def_gen.integers(I_i1_low, I_i1_high_closed, dtype="i1", endpoint=True)
+def_gen.integers(-128, I_i1_high_closed, dtype="i1", endpoint=True)
+
+def_gen.integers(128, dtype="int8")
+def_gen.integers(-128, 128, dtype="int8")
+def_gen.integers(127, dtype="int8", endpoint=True)
+def_gen.integers(-128, 127, dtype="int8", endpoint=True)
+def_gen.integers(I_i1_low_like, 127, dtype="int8", endpoint=True)
+def_gen.integers(I_i1_high_open, dtype="int8")
+def_gen.integers(I_i1_low, I_i1_high_open, dtype="int8")
+def_gen.integers(-128, I_i1_high_open, dtype="int8")
+def_gen.integers(I_i1_high_closed, dtype="int8", endpoint=True)
+def_gen.integers(I_i1_low, I_i1_high_closed, dtype="int8", endpoint=True)
+def_gen.integers(-128, I_i1_high_closed, dtype="int8", endpoint=True)
+
+def_gen.integers(128, dtype=np.int8)
+def_gen.integers(-128, 128, dtype=np.int8)
+def_gen.integers(127, dtype=np.int8, endpoint=True)
+def_gen.integers(-128, 127, dtype=np.int8, endpoint=True)
+def_gen.integers(I_i1_low_like, 127, dtype=np.int8, endpoint=True)
+def_gen.integers(I_i1_high_open, dtype=np.int8)
+def_gen.integers(I_i1_low, I_i1_high_open, dtype=np.int8)
+def_gen.integers(-128, I_i1_high_open, dtype=np.int8)
+def_gen.integers(I_i1_high_closed, dtype=np.int8, endpoint=True)
+def_gen.integers(I_i1_low, I_i1_high_closed, dtype=np.int8, endpoint=True)
+def_gen.integers(-128, I_i1_high_closed, dtype=np.int8, endpoint=True)
+
+I_i2_low: np.ndarray[Any, np.dtype[np.int16]] = np.array([-32768], dtype=np.int16)
+I_i2_low_like: list[int] = [-32768]
+I_i2_high_open: np.ndarray[Any, np.dtype[np.int16]] = np.array([32767], dtype=np.int16)
+I_i2_high_closed: np.ndarray[Any, np.dtype[np.int16]] = np.array([32767], dtype=np.int16)
+
+def_gen.integers(32768, dtype="i2")
+def_gen.integers(-32768, 32768, dtype="i2")
+def_gen.integers(32767, dtype="i2", endpoint=True)
+def_gen.integers(-32768, 32767, dtype="i2", endpoint=True)
+def_gen.integers(I_i2_low_like, 32767, dtype="i2", endpoint=True)
+def_gen.integers(I_i2_high_open, dtype="i2")
+def_gen.integers(I_i2_low, I_i2_high_open, dtype="i2")
+def_gen.integers(-32768, I_i2_high_open, dtype="i2")
+def_gen.integers(I_i2_high_closed, dtype="i2", endpoint=True)
+def_gen.integers(I_i2_low, I_i2_high_closed, dtype="i2", endpoint=True)
+def_gen.integers(-32768, I_i2_high_closed, dtype="i2", endpoint=True)
+
+def_gen.integers(32768, dtype="int16")
+def_gen.integers(-32768, 32768, dtype="int16")
+def_gen.integers(32767, dtype="int16", endpoint=True)
+def_gen.integers(-32768, 32767, dtype="int16", endpoint=True)
+def_gen.integers(I_i2_low_like, 32767, dtype="int16", endpoint=True)
+def_gen.integers(I_i2_high_open, dtype="int16")
+def_gen.integers(I_i2_low, I_i2_high_open, dtype="int16")
+def_gen.integers(-32768, I_i2_high_open, dtype="int16")
+def_gen.integers(I_i2_high_closed, dtype="int16", endpoint=True)
+def_gen.integers(I_i2_low, I_i2_high_closed, dtype="int16", endpoint=True)
+def_gen.integers(-32768, I_i2_high_closed, dtype="int16", endpoint=True)
+
+def_gen.integers(32768, dtype=np.int16)
+def_gen.integers(-32768, 32768, dtype=np.int16)
+def_gen.integers(32767, dtype=np.int16, endpoint=True)
+def_gen.integers(-32768, 32767, dtype=np.int16, endpoint=True)
+def_gen.integers(I_i2_low_like, 32767, dtype=np.int16, endpoint=True)
+def_gen.integers(I_i2_high_open, dtype=np.int16)
+def_gen.integers(I_i2_low, I_i2_high_open, dtype=np.int16)
+def_gen.integers(-32768, I_i2_high_open, dtype=np.int16)
+def_gen.integers(I_i2_high_closed, dtype=np.int16, endpoint=True)
+def_gen.integers(I_i2_low, I_i2_high_closed, dtype=np.int16, endpoint=True)
+def_gen.integers(-32768, I_i2_high_closed, dtype=np.int16, endpoint=True)
+
+I_i4_low: np.ndarray[Any, np.dtype[np.int32]] = np.array([-2147483648], dtype=np.int32)
+I_i4_low_like: list[int] = [-2147483648]
+I_i4_high_open: np.ndarray[Any, np.dtype[np.int32]] = np.array([2147483647], dtype=np.int32)
+I_i4_high_closed: np.ndarray[Any, np.dtype[np.int32]] = np.array([2147483647], dtype=np.int32)
+
+def_gen.integers(2147483648, dtype="i4")
+def_gen.integers(-2147483648, 2147483648, dtype="i4")
+def_gen.integers(2147483647, dtype="i4", endpoint=True)
+def_gen.integers(-2147483648, 2147483647, dtype="i4", endpoint=True)
+def_gen.integers(I_i4_low_like, 2147483647, dtype="i4", endpoint=True)
+def_gen.integers(I_i4_high_open, dtype="i4")
+def_gen.integers(I_i4_low, I_i4_high_open, dtype="i4")
+def_gen.integers(-2147483648, I_i4_high_open, dtype="i4")
+def_gen.integers(I_i4_high_closed, dtype="i4", endpoint=True)
+def_gen.integers(I_i4_low, I_i4_high_closed, dtype="i4", endpoint=True)
+def_gen.integers(-2147483648, I_i4_high_closed, dtype="i4", endpoint=True)
+
+def_gen.integers(2147483648, dtype="int32")
+def_gen.integers(-2147483648, 2147483648, dtype="int32")
+def_gen.integers(2147483647, dtype="int32", endpoint=True)
+def_gen.integers(-2147483648, 2147483647, dtype="int32", endpoint=True)
+def_gen.integers(I_i4_low_like, 2147483647, dtype="int32", endpoint=True)
+def_gen.integers(I_i4_high_open, dtype="int32")
+def_gen.integers(I_i4_low, I_i4_high_open, dtype="int32")
+def_gen.integers(-2147483648, I_i4_high_open, dtype="int32")
+def_gen.integers(I_i4_high_closed, dtype="int32", endpoint=True)
+def_gen.integers(I_i4_low, I_i4_high_closed, dtype="int32", endpoint=True)
+def_gen.integers(-2147483648, I_i4_high_closed, dtype="int32", endpoint=True)
+
+def_gen.integers(2147483648, dtype=np.int32)
+def_gen.integers(-2147483648, 2147483648, dtype=np.int32)
+def_gen.integers(2147483647, dtype=np.int32, endpoint=True)
+def_gen.integers(-2147483648, 2147483647, dtype=np.int32, endpoint=True)
+def_gen.integers(I_i4_low_like, 2147483647, dtype=np.int32, endpoint=True)
+def_gen.integers(I_i4_high_open, dtype=np.int32)
+def_gen.integers(I_i4_low, I_i4_high_open, dtype=np.int32)
+def_gen.integers(-2147483648, I_i4_high_open, dtype=np.int32)
+def_gen.integers(I_i4_high_closed, dtype=np.int32, endpoint=True)
+def_gen.integers(I_i4_low, I_i4_high_closed, dtype=np.int32, endpoint=True)
+def_gen.integers(-2147483648, I_i4_high_closed, dtype=np.int32, endpoint=True)
+
+I_i8_low: np.ndarray[Any, np.dtype[np.int64]] = np.array([-9223372036854775808], dtype=np.int64)
+I_i8_low_like: list[int] = [-9223372036854775808]
+I_i8_high_open: np.ndarray[Any, np.dtype[np.int64]] = np.array([9223372036854775807], dtype=np.int64)
+I_i8_high_closed: np.ndarray[Any, np.dtype[np.int64]] = np.array([9223372036854775807], dtype=np.int64)
+
+def_gen.integers(9223372036854775808, dtype="i8")
+def_gen.integers(-9223372036854775808, 9223372036854775808, dtype="i8")
+def_gen.integers(9223372036854775807, dtype="i8", endpoint=True)
+def_gen.integers(-9223372036854775808, 9223372036854775807, dtype="i8", endpoint=True)
+def_gen.integers(I_i8_low_like, 9223372036854775807, dtype="i8", endpoint=True)
+def_gen.integers(I_i8_high_open, dtype="i8")
+def_gen.integers(I_i8_low, I_i8_high_open, dtype="i8")
+def_gen.integers(-9223372036854775808, I_i8_high_open, dtype="i8")
+def_gen.integers(I_i8_high_closed, dtype="i8", endpoint=True)
+def_gen.integers(I_i8_low, I_i8_high_closed, dtype="i8", endpoint=True)
+def_gen.integers(-9223372036854775808, I_i8_high_closed, dtype="i8", endpoint=True)
+
+def_gen.integers(9223372036854775808, dtype="int64")
+def_gen.integers(-9223372036854775808, 9223372036854775808, dtype="int64")
+def_gen.integers(9223372036854775807, dtype="int64", endpoint=True)
+def_gen.integers(-9223372036854775808, 9223372036854775807, dtype="int64", endpoint=True)
+def_gen.integers(I_i8_low_like, 9223372036854775807, dtype="int64", endpoint=True)
+def_gen.integers(I_i8_high_open, dtype="int64")
+def_gen.integers(I_i8_low, I_i8_high_open, dtype="int64")
+def_gen.integers(-9223372036854775808, I_i8_high_open, dtype="int64")
+def_gen.integers(I_i8_high_closed, dtype="int64", endpoint=True)
+def_gen.integers(I_i8_low, I_i8_high_closed, dtype="int64", endpoint=True)
+def_gen.integers(-9223372036854775808, I_i8_high_closed, dtype="int64", endpoint=True)
+
+def_gen.integers(9223372036854775808, dtype=np.int64)
+def_gen.integers(-9223372036854775808, 9223372036854775808, dtype=np.int64)
+def_gen.integers(9223372036854775807, dtype=np.int64, endpoint=True)
+def_gen.integers(-9223372036854775808, 9223372036854775807, dtype=np.int64, endpoint=True)
+def_gen.integers(I_i8_low_like, 9223372036854775807, dtype=np.int64, endpoint=True)
+def_gen.integers(I_i8_high_open, dtype=np.int64)
+def_gen.integers(I_i8_low, I_i8_high_open, dtype=np.int64)
+def_gen.integers(-9223372036854775808, I_i8_high_open, dtype=np.int64)
+def_gen.integers(I_i8_high_closed, dtype=np.int64, endpoint=True)
+def_gen.integers(I_i8_low, I_i8_high_closed, dtype=np.int64, endpoint=True)
+def_gen.integers(-9223372036854775808, I_i8_high_closed, dtype=np.int64, endpoint=True)
+
+
+def_gen.bit_generator
+
+def_gen.bytes(2)
+
+def_gen.choice(5)
+def_gen.choice(5, 3)
+def_gen.choice(5, 3, replace=True)
+def_gen.choice(5, 3, p=[1 / 5] * 5)
+def_gen.choice(5, 3, p=[1 / 5] * 5, replace=False)
+
+def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"])
+def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3)
+def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, p=[1 / 4] * 4)
+def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=True)
+def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=False, p=np.array([1 / 8, 1 / 8, 1 / 2, 1 / 4]))
+
+def_gen.dirichlet([0.5, 0.5])
+def_gen.dirichlet(np.array([0.5, 0.5]))
+def_gen.dirichlet(np.array([0.5, 0.5]), size=3)
+
+def_gen.multinomial(20, [1 / 6.0] * 6)
+def_gen.multinomial(20, np.array([0.5, 0.5]))
+def_gen.multinomial(20, [1 / 6.0] * 6, size=2)
+def_gen.multinomial([[10], [20]], [1 / 6.0] * 6, size=(2, 2))
+def_gen.multinomial(np.array([[10], [20]]), np.array([0.5, 0.5]), size=(2, 2))
+
+def_gen.multivariate_hypergeometric([3, 5, 7], 2)
+def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2)
+def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2, size=4)
+def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2, size=(4, 7))
+def_gen.multivariate_hypergeometric([3, 5, 7], 2, method="count")
+def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2, method="marginals")
+
+def_gen.multivariate_normal([0.0], [[1.0]])
+def_gen.multivariate_normal([0.0], np.array([[1.0]]))
+def_gen.multivariate_normal(np.array([0.0]), [[1.0]])
+def_gen.multivariate_normal([0.0], np.array([[1.0]]))
+
+def_gen.permutation(10)
+def_gen.permutation([1, 2, 3, 4])
+def_gen.permutation(np.array([1, 2, 3, 4]))
+def_gen.permutation(D_2D, axis=1)
+def_gen.permuted(D_2D)
+def_gen.permuted(D_2D_like)
+def_gen.permuted(D_2D, axis=1)
+def_gen.permuted(D_2D, out=D_2D)
+def_gen.permuted(D_2D_like, out=D_2D)
+def_gen.permuted(D_2D_like, out=D_2D)
+def_gen.permuted(D_2D, axis=1, out=D_2D)
+
+def_gen.shuffle(np.arange(10))
+def_gen.shuffle([1, 2, 3, 4, 5])
+def_gen.shuffle(D_2D, axis=1)
+
+def_gen.__str__()
+def_gen.__repr__()
+def_gen.__setstate__(dict(def_gen.bit_generator.state))
+
+# RandomState
+random_st: np.random.RandomState = np.random.RandomState()
+
+random_st.standard_normal()
+random_st.standard_normal(size=None)
+random_st.standard_normal(size=1)
+
+random_st.random()
+random_st.random(size=None)
+random_st.random(size=1)
+
+random_st.standard_cauchy()
+random_st.standard_cauchy(size=None)
+random_st.standard_cauchy(size=1)
+
+random_st.standard_exponential()
+random_st.standard_exponential(size=None)
+random_st.standard_exponential(size=1)
+
+random_st.zipf(1.5)
+random_st.zipf(1.5, size=None)
+random_st.zipf(1.5, size=1)
+random_st.zipf(D_arr_1p5)
+random_st.zipf(D_arr_1p5, size=1)
+random_st.zipf(D_arr_like_1p5)
+random_st.zipf(D_arr_like_1p5, size=1)
+
+random_st.weibull(0.5)
+random_st.weibull(0.5, size=None)
+random_st.weibull(0.5, size=1)
+random_st.weibull(D_arr_0p5)
+random_st.weibull(D_arr_0p5, size=1)
+random_st.weibull(D_arr_like_0p5)
+random_st.weibull(D_arr_like_0p5, size=1)
+
+random_st.standard_t(0.5)
+random_st.standard_t(0.5, size=None)
+random_st.standard_t(0.5, size=1)
+random_st.standard_t(D_arr_0p5)
+random_st.standard_t(D_arr_0p5, size=1)
+random_st.standard_t(D_arr_like_0p5)
+random_st.standard_t(D_arr_like_0p5, size=1)
+
+random_st.poisson(0.5)
+random_st.poisson(0.5, size=None)
+random_st.poisson(0.5, size=1)
+random_st.poisson(D_arr_0p5)
+random_st.poisson(D_arr_0p5, size=1)
+random_st.poisson(D_arr_like_0p5)
+random_st.poisson(D_arr_like_0p5, size=1)
+
+random_st.power(0.5)
+random_st.power(0.5, size=None)
+random_st.power(0.5, size=1)
+random_st.power(D_arr_0p5)
+random_st.power(D_arr_0p5, size=1)
+random_st.power(D_arr_like_0p5)
+random_st.power(D_arr_like_0p5, size=1)
+
+random_st.pareto(0.5)
+random_st.pareto(0.5, size=None)
+random_st.pareto(0.5, size=1)
+random_st.pareto(D_arr_0p5)
+random_st.pareto(D_arr_0p5, size=1)
+random_st.pareto(D_arr_like_0p5)
+random_st.pareto(D_arr_like_0p5, size=1)
+
+random_st.chisquare(0.5)
+random_st.chisquare(0.5, size=None)
+random_st.chisquare(0.5, size=1)
+random_st.chisquare(D_arr_0p5)
+random_st.chisquare(D_arr_0p5, size=1)
+random_st.chisquare(D_arr_like_0p5)
+random_st.chisquare(D_arr_like_0p5, size=1)
+
+random_st.exponential(0.5)
+random_st.exponential(0.5, size=None)
+random_st.exponential(0.5, size=1)
+random_st.exponential(D_arr_0p5)
+random_st.exponential(D_arr_0p5, size=1)
+random_st.exponential(D_arr_like_0p5)
+random_st.exponential(D_arr_like_0p5, size=1)
+
+random_st.geometric(0.5)
+random_st.geometric(0.5, size=None)
+random_st.geometric(0.5, size=1)
+random_st.geometric(D_arr_0p5)
+random_st.geometric(D_arr_0p5, size=1)
+random_st.geometric(D_arr_like_0p5)
+random_st.geometric(D_arr_like_0p5, size=1)
+
+random_st.logseries(0.5)
+random_st.logseries(0.5, size=None)
+random_st.logseries(0.5, size=1)
+random_st.logseries(D_arr_0p5)
+random_st.logseries(D_arr_0p5, size=1)
+random_st.logseries(D_arr_like_0p5)
+random_st.logseries(D_arr_like_0p5, size=1)
+
+random_st.rayleigh(0.5)
+random_st.rayleigh(0.5, size=None)
+random_st.rayleigh(0.5, size=1)
+random_st.rayleigh(D_arr_0p5)
+random_st.rayleigh(D_arr_0p5, size=1)
+random_st.rayleigh(D_arr_like_0p5)
+random_st.rayleigh(D_arr_like_0p5, size=1)
+
+random_st.standard_gamma(0.5)
+random_st.standard_gamma(0.5, size=None)
+random_st.standard_gamma(0.5, size=1)
+random_st.standard_gamma(D_arr_0p5)
+random_st.standard_gamma(D_arr_0p5, size=1)
+random_st.standard_gamma(D_arr_like_0p5)
+random_st.standard_gamma(D_arr_like_0p5, size=1)
+random_st.standard_gamma(D_arr_like_0p5, size=1)
+
+random_st.vonmises(0.5, 0.5)
+random_st.vonmises(0.5, 0.5, size=None)
+random_st.vonmises(0.5, 0.5, size=1)
+random_st.vonmises(D_arr_0p5, 0.5)
+random_st.vonmises(0.5, D_arr_0p5)
+random_st.vonmises(D_arr_0p5, 0.5, size=1)
+random_st.vonmises(0.5, D_arr_0p5, size=1)
+random_st.vonmises(D_arr_like_0p5, 0.5)
+random_st.vonmises(0.5, D_arr_like_0p5)
+random_st.vonmises(D_arr_0p5, D_arr_0p5)
+random_st.vonmises(D_arr_like_0p5, D_arr_like_0p5)
+random_st.vonmises(D_arr_0p5, D_arr_0p5, size=1)
+random_st.vonmises(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.wald(0.5, 0.5)
+random_st.wald(0.5, 0.5, size=None)
+random_st.wald(0.5, 0.5, size=1)
+random_st.wald(D_arr_0p5, 0.5)
+random_st.wald(0.5, D_arr_0p5)
+random_st.wald(D_arr_0p5, 0.5, size=1)
+random_st.wald(0.5, D_arr_0p5, size=1)
+random_st.wald(D_arr_like_0p5, 0.5)
+random_st.wald(0.5, D_arr_like_0p5)
+random_st.wald(D_arr_0p5, D_arr_0p5)
+random_st.wald(D_arr_like_0p5, D_arr_like_0p5)
+random_st.wald(D_arr_0p5, D_arr_0p5, size=1)
+random_st.wald(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.uniform(0.5, 0.5)
+random_st.uniform(0.5, 0.5, size=None)
+random_st.uniform(0.5, 0.5, size=1)
+random_st.uniform(D_arr_0p5, 0.5)
+random_st.uniform(0.5, D_arr_0p5)
+random_st.uniform(D_arr_0p5, 0.5, size=1)
+random_st.uniform(0.5, D_arr_0p5, size=1)
+random_st.uniform(D_arr_like_0p5, 0.5)
+random_st.uniform(0.5, D_arr_like_0p5)
+random_st.uniform(D_arr_0p5, D_arr_0p5)
+random_st.uniform(D_arr_like_0p5, D_arr_like_0p5)
+random_st.uniform(D_arr_0p5, D_arr_0p5, size=1)
+random_st.uniform(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.beta(0.5, 0.5)
+random_st.beta(0.5, 0.5, size=None)
+random_st.beta(0.5, 0.5, size=1)
+random_st.beta(D_arr_0p5, 0.5)
+random_st.beta(0.5, D_arr_0p5)
+random_st.beta(D_arr_0p5, 0.5, size=1)
+random_st.beta(0.5, D_arr_0p5, size=1)
+random_st.beta(D_arr_like_0p5, 0.5)
+random_st.beta(0.5, D_arr_like_0p5)
+random_st.beta(D_arr_0p5, D_arr_0p5)
+random_st.beta(D_arr_like_0p5, D_arr_like_0p5)
+random_st.beta(D_arr_0p5, D_arr_0p5, size=1)
+random_st.beta(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.f(0.5, 0.5)
+random_st.f(0.5, 0.5, size=None)
+random_st.f(0.5, 0.5, size=1)
+random_st.f(D_arr_0p5, 0.5)
+random_st.f(0.5, D_arr_0p5)
+random_st.f(D_arr_0p5, 0.5, size=1)
+random_st.f(0.5, D_arr_0p5, size=1)
+random_st.f(D_arr_like_0p5, 0.5)
+random_st.f(0.5, D_arr_like_0p5)
+random_st.f(D_arr_0p5, D_arr_0p5)
+random_st.f(D_arr_like_0p5, D_arr_like_0p5)
+random_st.f(D_arr_0p5, D_arr_0p5, size=1)
+random_st.f(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.gamma(0.5, 0.5)
+random_st.gamma(0.5, 0.5, size=None)
+random_st.gamma(0.5, 0.5, size=1)
+random_st.gamma(D_arr_0p5, 0.5)
+random_st.gamma(0.5, D_arr_0p5)
+random_st.gamma(D_arr_0p5, 0.5, size=1)
+random_st.gamma(0.5, D_arr_0p5, size=1)
+random_st.gamma(D_arr_like_0p5, 0.5)
+random_st.gamma(0.5, D_arr_like_0p5)
+random_st.gamma(D_arr_0p5, D_arr_0p5)
+random_st.gamma(D_arr_like_0p5, D_arr_like_0p5)
+random_st.gamma(D_arr_0p5, D_arr_0p5, size=1)
+random_st.gamma(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.gumbel(0.5, 0.5)
+random_st.gumbel(0.5, 0.5, size=None)
+random_st.gumbel(0.5, 0.5, size=1)
+random_st.gumbel(D_arr_0p5, 0.5)
+random_st.gumbel(0.5, D_arr_0p5)
+random_st.gumbel(D_arr_0p5, 0.5, size=1)
+random_st.gumbel(0.5, D_arr_0p5, size=1)
+random_st.gumbel(D_arr_like_0p5, 0.5)
+random_st.gumbel(0.5, D_arr_like_0p5)
+random_st.gumbel(D_arr_0p5, D_arr_0p5)
+random_st.gumbel(D_arr_like_0p5, D_arr_like_0p5)
+random_st.gumbel(D_arr_0p5, D_arr_0p5, size=1)
+random_st.gumbel(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.laplace(0.5, 0.5)
+random_st.laplace(0.5, 0.5, size=None)
+random_st.laplace(0.5, 0.5, size=1)
+random_st.laplace(D_arr_0p5, 0.5)
+random_st.laplace(0.5, D_arr_0p5)
+random_st.laplace(D_arr_0p5, 0.5, size=1)
+random_st.laplace(0.5, D_arr_0p5, size=1)
+random_st.laplace(D_arr_like_0p5, 0.5)
+random_st.laplace(0.5, D_arr_like_0p5)
+random_st.laplace(D_arr_0p5, D_arr_0p5)
+random_st.laplace(D_arr_like_0p5, D_arr_like_0p5)
+random_st.laplace(D_arr_0p5, D_arr_0p5, size=1)
+random_st.laplace(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.logistic(0.5, 0.5)
+random_st.logistic(0.5, 0.5, size=None)
+random_st.logistic(0.5, 0.5, size=1)
+random_st.logistic(D_arr_0p5, 0.5)
+random_st.logistic(0.5, D_arr_0p5)
+random_st.logistic(D_arr_0p5, 0.5, size=1)
+random_st.logistic(0.5, D_arr_0p5, size=1)
+random_st.logistic(D_arr_like_0p5, 0.5)
+random_st.logistic(0.5, D_arr_like_0p5)
+random_st.logistic(D_arr_0p5, D_arr_0p5)
+random_st.logistic(D_arr_like_0p5, D_arr_like_0p5)
+random_st.logistic(D_arr_0p5, D_arr_0p5, size=1)
+random_st.logistic(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.lognormal(0.5, 0.5)
+random_st.lognormal(0.5, 0.5, size=None)
+random_st.lognormal(0.5, 0.5, size=1)
+random_st.lognormal(D_arr_0p5, 0.5)
+random_st.lognormal(0.5, D_arr_0p5)
+random_st.lognormal(D_arr_0p5, 0.5, size=1)
+random_st.lognormal(0.5, D_arr_0p5, size=1)
+random_st.lognormal(D_arr_like_0p5, 0.5)
+random_st.lognormal(0.5, D_arr_like_0p5)
+random_st.lognormal(D_arr_0p5, D_arr_0p5)
+random_st.lognormal(D_arr_like_0p5, D_arr_like_0p5)
+random_st.lognormal(D_arr_0p5, D_arr_0p5, size=1)
+random_st.lognormal(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.noncentral_chisquare(0.5, 0.5)
+random_st.noncentral_chisquare(0.5, 0.5, size=None)
+random_st.noncentral_chisquare(0.5, 0.5, size=1)
+random_st.noncentral_chisquare(D_arr_0p5, 0.5)
+random_st.noncentral_chisquare(0.5, D_arr_0p5)
+random_st.noncentral_chisquare(D_arr_0p5, 0.5, size=1)
+random_st.noncentral_chisquare(0.5, D_arr_0p5, size=1)
+random_st.noncentral_chisquare(D_arr_like_0p5, 0.5)
+random_st.noncentral_chisquare(0.5, D_arr_like_0p5)
+random_st.noncentral_chisquare(D_arr_0p5, D_arr_0p5)
+random_st.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5)
+random_st.noncentral_chisquare(D_arr_0p5, D_arr_0p5, size=1)
+random_st.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.normal(0.5, 0.5)
+random_st.normal(0.5, 0.5, size=None)
+random_st.normal(0.5, 0.5, size=1)
+random_st.normal(D_arr_0p5, 0.5)
+random_st.normal(0.5, D_arr_0p5)
+random_st.normal(D_arr_0p5, 0.5, size=1)
+random_st.normal(0.5, D_arr_0p5, size=1)
+random_st.normal(D_arr_like_0p5, 0.5)
+random_st.normal(0.5, D_arr_like_0p5)
+random_st.normal(D_arr_0p5, D_arr_0p5)
+random_st.normal(D_arr_like_0p5, D_arr_like_0p5)
+random_st.normal(D_arr_0p5, D_arr_0p5, size=1)
+random_st.normal(D_arr_like_0p5, D_arr_like_0p5, size=1)
+
+random_st.triangular(0.1, 0.5, 0.9)
+random_st.triangular(0.1, 0.5, 0.9, size=None)
+random_st.triangular(0.1, 0.5, 0.9, size=1)
+random_st.triangular(D_arr_0p1, 0.5, 0.9)
+random_st.triangular(0.1, D_arr_0p5, 0.9)
+random_st.triangular(D_arr_0p1, 0.5, D_arr_like_0p9, size=1)
+random_st.triangular(0.1, D_arr_0p5, 0.9, size=1)
+random_st.triangular(D_arr_like_0p1, 0.5, D_arr_0p9)
+random_st.triangular(0.5, D_arr_like_0p5, 0.9)
+random_st.triangular(D_arr_0p1, D_arr_0p5, 0.9)
+random_st.triangular(D_arr_like_0p1, D_arr_like_0p5, 0.9)
+random_st.triangular(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1)
+random_st.triangular(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1)
+
+random_st.noncentral_f(0.1, 0.5, 0.9)
+random_st.noncentral_f(0.1, 0.5, 0.9, size=None)
+random_st.noncentral_f(0.1, 0.5, 0.9, size=1)
+random_st.noncentral_f(D_arr_0p1, 0.5, 0.9)
+random_st.noncentral_f(0.1, D_arr_0p5, 0.9)
+random_st.noncentral_f(D_arr_0p1, 0.5, D_arr_like_0p9, size=1)
+random_st.noncentral_f(0.1, D_arr_0p5, 0.9, size=1)
+random_st.noncentral_f(D_arr_like_0p1, 0.5, D_arr_0p9)
+random_st.noncentral_f(0.5, D_arr_like_0p5, 0.9)
+random_st.noncentral_f(D_arr_0p1, D_arr_0p5, 0.9)
+random_st.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, 0.9)
+random_st.noncentral_f(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1)
+random_st.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1)
+
+random_st.binomial(10, 0.5)
+random_st.binomial(10, 0.5, size=None)
+random_st.binomial(10, 0.5, size=1)
+random_st.binomial(I_arr_10, 0.5)
+random_st.binomial(10, D_arr_0p5)
+random_st.binomial(I_arr_10, 0.5, size=1)
+random_st.binomial(10, D_arr_0p5, size=1)
+random_st.binomial(I_arr_like_10, 0.5)
+random_st.binomial(10, D_arr_like_0p5)
+random_st.binomial(I_arr_10, D_arr_0p5)
+random_st.binomial(I_arr_like_10, D_arr_like_0p5)
+random_st.binomial(I_arr_10, D_arr_0p5, size=1)
+random_st.binomial(I_arr_like_10, D_arr_like_0p5, size=1)
+
+random_st.negative_binomial(10, 0.5)
+random_st.negative_binomial(10, 0.5, size=None)
+random_st.negative_binomial(10, 0.5, size=1)
+random_st.negative_binomial(I_arr_10, 0.5)
+random_st.negative_binomial(10, D_arr_0p5)
+random_st.negative_binomial(I_arr_10, 0.5, size=1)
+random_st.negative_binomial(10, D_arr_0p5, size=1)
+random_st.negative_binomial(I_arr_like_10, 0.5)
+random_st.negative_binomial(10, D_arr_like_0p5)
+random_st.negative_binomial(I_arr_10, D_arr_0p5)
+random_st.negative_binomial(I_arr_like_10, D_arr_like_0p5)
+random_st.negative_binomial(I_arr_10, D_arr_0p5, size=1)
+random_st.negative_binomial(I_arr_like_10, D_arr_like_0p5, size=1)
+
+random_st.hypergeometric(20, 20, 10)
+random_st.hypergeometric(20, 20, 10, size=None)
+random_st.hypergeometric(20, 20, 10, size=1)
+random_st.hypergeometric(I_arr_20, 20, 10)
+random_st.hypergeometric(20, I_arr_20, 10)
+random_st.hypergeometric(I_arr_20, 20, I_arr_like_10, size=1)
+random_st.hypergeometric(20, I_arr_20, 10, size=1)
+random_st.hypergeometric(I_arr_like_20, 20, I_arr_10)
+random_st.hypergeometric(20, I_arr_like_20, 10)
+random_st.hypergeometric(I_arr_20, I_arr_20, 10)
+random_st.hypergeometric(I_arr_like_20, I_arr_like_20, 10)
+random_st.hypergeometric(I_arr_20, I_arr_20, I_arr_10, size=1)
+random_st.hypergeometric(I_arr_like_20, I_arr_like_20, I_arr_like_10, size=1)
+
+random_st.randint(0, 100)
+random_st.randint(100)
+random_st.randint([100])
+random_st.randint(0, [100])
+
+random_st.randint(2, dtype=bool)
+random_st.randint(0, 2, dtype=bool)
+random_st.randint(I_bool_high_open, dtype=bool)
+random_st.randint(I_bool_low, I_bool_high_open, dtype=bool)
+random_st.randint(0, I_bool_high_open, dtype=bool)
+
+random_st.randint(2, dtype=np.bool)
+random_st.randint(0, 2, dtype=np.bool)
+random_st.randint(I_bool_high_open, dtype=np.bool)
+random_st.randint(I_bool_low, I_bool_high_open, dtype=np.bool)
+random_st.randint(0, I_bool_high_open, dtype=np.bool)
+
+random_st.randint(256, dtype="u1")
+random_st.randint(0, 256, dtype="u1")
+random_st.randint(I_u1_high_open, dtype="u1")
+random_st.randint(I_u1_low, I_u1_high_open, dtype="u1")
+random_st.randint(0, I_u1_high_open, dtype="u1")
+
+random_st.randint(256, dtype="uint8")
+random_st.randint(0, 256, dtype="uint8")
+random_st.randint(I_u1_high_open, dtype="uint8")
+random_st.randint(I_u1_low, I_u1_high_open, dtype="uint8")
+random_st.randint(0, I_u1_high_open, dtype="uint8")
+
+random_st.randint(256, dtype=np.uint8)
+random_st.randint(0, 256, dtype=np.uint8)
+random_st.randint(I_u1_high_open, dtype=np.uint8)
+random_st.randint(I_u1_low, I_u1_high_open, dtype=np.uint8)
+random_st.randint(0, I_u1_high_open, dtype=np.uint8)
+
+random_st.randint(65536, dtype="u2")
+random_st.randint(0, 65536, dtype="u2")
+random_st.randint(I_u2_high_open, dtype="u2")
+random_st.randint(I_u2_low, I_u2_high_open, dtype="u2")
+random_st.randint(0, I_u2_high_open, dtype="u2")
+
+random_st.randint(65536, dtype="uint16")
+random_st.randint(0, 65536, dtype="uint16")
+random_st.randint(I_u2_high_open, dtype="uint16")
+random_st.randint(I_u2_low, I_u2_high_open, dtype="uint16")
+random_st.randint(0, I_u2_high_open, dtype="uint16")
+
+random_st.randint(65536, dtype=np.uint16)
+random_st.randint(0, 65536, dtype=np.uint16)
+random_st.randint(I_u2_high_open, dtype=np.uint16)
+random_st.randint(I_u2_low, I_u2_high_open, dtype=np.uint16)
+random_st.randint(0, I_u2_high_open, dtype=np.uint16)
+
+random_st.randint(4294967296, dtype="u4")
+random_st.randint(0, 4294967296, dtype="u4")
+random_st.randint(I_u4_high_open, dtype="u4")
+random_st.randint(I_u4_low, I_u4_high_open, dtype="u4")
+random_st.randint(0, I_u4_high_open, dtype="u4")
+
+random_st.randint(4294967296, dtype="uint32")
+random_st.randint(0, 4294967296, dtype="uint32")
+random_st.randint(I_u4_high_open, dtype="uint32")
+random_st.randint(I_u4_low, I_u4_high_open, dtype="uint32")
+random_st.randint(0, I_u4_high_open, dtype="uint32")
+
+random_st.randint(4294967296, dtype=np.uint32)
+random_st.randint(0, 4294967296, dtype=np.uint32)
+random_st.randint(I_u4_high_open, dtype=np.uint32)
+random_st.randint(I_u4_low, I_u4_high_open, dtype=np.uint32)
+random_st.randint(0, I_u4_high_open, dtype=np.uint32)
+
+
+random_st.randint(18446744073709551616, dtype="u8")
+random_st.randint(0, 18446744073709551616, dtype="u8")
+random_st.randint(I_u8_high_open, dtype="u8")
+random_st.randint(I_u8_low, I_u8_high_open, dtype="u8")
+random_st.randint(0, I_u8_high_open, dtype="u8")
+
+random_st.randint(18446744073709551616, dtype="uint64")
+random_st.randint(0, 18446744073709551616, dtype="uint64")
+random_st.randint(I_u8_high_open, dtype="uint64")
+random_st.randint(I_u8_low, I_u8_high_open, dtype="uint64")
+random_st.randint(0, I_u8_high_open, dtype="uint64")
+
+random_st.randint(18446744073709551616, dtype=np.uint64)
+random_st.randint(0, 18446744073709551616, dtype=np.uint64)
+random_st.randint(I_u8_high_open, dtype=np.uint64)
+random_st.randint(I_u8_low, I_u8_high_open, dtype=np.uint64)
+random_st.randint(0, I_u8_high_open, dtype=np.uint64)
+
+random_st.randint(128, dtype="i1")
+random_st.randint(-128, 128, dtype="i1")
+random_st.randint(I_i1_high_open, dtype="i1")
+random_st.randint(I_i1_low, I_i1_high_open, dtype="i1")
+random_st.randint(-128, I_i1_high_open, dtype="i1")
+
+random_st.randint(128, dtype="int8")
+random_st.randint(-128, 128, dtype="int8")
+random_st.randint(I_i1_high_open, dtype="int8")
+random_st.randint(I_i1_low, I_i1_high_open, dtype="int8")
+random_st.randint(-128, I_i1_high_open, dtype="int8")
+
+random_st.randint(128, dtype=np.int8)
+random_st.randint(-128, 128, dtype=np.int8)
+random_st.randint(I_i1_high_open, dtype=np.int8)
+random_st.randint(I_i1_low, I_i1_high_open, dtype=np.int8)
+random_st.randint(-128, I_i1_high_open, dtype=np.int8)
+
+random_st.randint(32768, dtype="i2")
+random_st.randint(-32768, 32768, dtype="i2")
+random_st.randint(I_i2_high_open, dtype="i2")
+random_st.randint(I_i2_low, I_i2_high_open, dtype="i2")
+random_st.randint(-32768, I_i2_high_open, dtype="i2")
+random_st.randint(32768, dtype="int16")
+random_st.randint(-32768, 32768, dtype="int16")
+random_st.randint(I_i2_high_open, dtype="int16")
+random_st.randint(I_i2_low, I_i2_high_open, dtype="int16")
+random_st.randint(-32768, I_i2_high_open, dtype="int16")
+random_st.randint(32768, dtype=np.int16)
+random_st.randint(-32768, 32768, dtype=np.int16)
+random_st.randint(I_i2_high_open, dtype=np.int16)
+random_st.randint(I_i2_low, I_i2_high_open, dtype=np.int16)
+random_st.randint(-32768, I_i2_high_open, dtype=np.int16)
+
+random_st.randint(2147483648, dtype="i4")
+random_st.randint(-2147483648, 2147483648, dtype="i4")
+random_st.randint(I_i4_high_open, dtype="i4")
+random_st.randint(I_i4_low, I_i4_high_open, dtype="i4")
+random_st.randint(-2147483648, I_i4_high_open, dtype="i4")
+
+random_st.randint(2147483648, dtype="int32")
+random_st.randint(-2147483648, 2147483648, dtype="int32")
+random_st.randint(I_i4_high_open, dtype="int32")
+random_st.randint(I_i4_low, I_i4_high_open, dtype="int32")
+random_st.randint(-2147483648, I_i4_high_open, dtype="int32")
+
+random_st.randint(2147483648, dtype=np.int32)
+random_st.randint(-2147483648, 2147483648, dtype=np.int32)
+random_st.randint(I_i4_high_open, dtype=np.int32)
+random_st.randint(I_i4_low, I_i4_high_open, dtype=np.int32)
+random_st.randint(-2147483648, I_i4_high_open, dtype=np.int32)
+
+random_st.randint(9223372036854775808, dtype="i8")
+random_st.randint(-9223372036854775808, 9223372036854775808, dtype="i8")
+random_st.randint(I_i8_high_open, dtype="i8")
+random_st.randint(I_i8_low, I_i8_high_open, dtype="i8")
+random_st.randint(-9223372036854775808, I_i8_high_open, dtype="i8")
+
+random_st.randint(9223372036854775808, dtype="int64")
+random_st.randint(-9223372036854775808, 9223372036854775808, dtype="int64")
+random_st.randint(I_i8_high_open, dtype="int64")
+random_st.randint(I_i8_low, I_i8_high_open, dtype="int64")
+random_st.randint(-9223372036854775808, I_i8_high_open, dtype="int64")
+
+random_st.randint(9223372036854775808, dtype=np.int64)
+random_st.randint(-9223372036854775808, 9223372036854775808, dtype=np.int64)
+random_st.randint(I_i8_high_open, dtype=np.int64)
+random_st.randint(I_i8_low, I_i8_high_open, dtype=np.int64)
+random_st.randint(-9223372036854775808, I_i8_high_open, dtype=np.int64)
+
+bg: np.random.BitGenerator = random_st._bit_generator
+
+random_st.bytes(2)
+
+random_st.choice(5)
+random_st.choice(5, 3)
+random_st.choice(5, 3, replace=True)
+random_st.choice(5, 3, p=[1 / 5] * 5)
+random_st.choice(5, 3, p=[1 / 5] * 5, replace=False)
+
+random_st.choice(["pooh", "rabbit", "piglet", "Christopher"])
+random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3)
+random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, p=[1 / 4] * 4)
+random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=True)
+random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=False, p=np.array([1 / 8, 1 / 8, 1 / 2, 1 / 4]))
+
+random_st.dirichlet([0.5, 0.5])
+random_st.dirichlet(np.array([0.5, 0.5]))
+random_st.dirichlet(np.array([0.5, 0.5]), size=3)
+
+random_st.multinomial(20, [1 / 6.0] * 6)
+random_st.multinomial(20, np.array([0.5, 0.5]))
+random_st.multinomial(20, [1 / 6.0] * 6, size=2)
+
+random_st.multivariate_normal([0.0], [[1.0]])
+random_st.multivariate_normal([0.0], np.array([[1.0]]))
+random_st.multivariate_normal(np.array([0.0]), [[1.0]])
+random_st.multivariate_normal([0.0], np.array([[1.0]]))
+
+random_st.permutation(10)
+random_st.permutation([1, 2, 3, 4])
+random_st.permutation(np.array([1, 2, 3, 4]))
+random_st.permutation(D_2D)
+
+random_st.shuffle(np.arange(10))
+random_st.shuffle([1, 2, 3, 4, 5])
+random_st.shuffle(D_2D)
+
+np.random.RandomState(SEED_PCG64)
+np.random.RandomState(0)
+np.random.RandomState([0, 1, 2])
+random_st.__str__()
+random_st.__repr__()
+random_st_state = random_st.__getstate__()
+random_st.__setstate__(random_st_state)
+random_st.seed()
+random_st.seed(1)
+random_st.seed([0, 1])
+random_st_get_state = random_st.get_state()
+random_st_get_state_legacy = random_st.get_state(legacy=True)
+random_st.set_state(random_st_get_state)
+
+random_st.rand()
+random_st.rand(1)
+random_st.rand(1, 2)
+random_st.randn()
+random_st.randn(1)
+random_st.randn(1, 2)
+random_st.random_sample()
+random_st.random_sample(1)
+random_st.random_sample(size=(1, 2))
+
+random_st.tomaxint()
+random_st.tomaxint(1)
+random_st.tomaxint((1,))
+
+np.random.mtrand.set_bit_generator(SEED_PCG64)
+np.random.mtrand.get_bit_generator()
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/recfunctions.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/recfunctions.py
new file mode 100644
index 0000000000000000000000000000000000000000..871772240174ae53f6dc108a78d054751ead488b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/recfunctions.py
@@ -0,0 +1,164 @@
+"""These tests are based on the doctests from `numpy/lib/recfunctions.py`."""
+
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy.lib import recfunctions as rfn
+
+
+def test_recursive_fill_fields() -> None:
+    a: npt.NDArray[np.void] = np.array(
+        [(1, 10.0), (2, 20.0)],
+        dtype=[("A", np.int64), ("B", np.float64)],
+    )
+    b = np.zeros((3,), dtype=a.dtype)
+    out = rfn.recursive_fill_fields(a, b)
+    assert_type(out, np.ndarray[tuple[int], np.dtype[np.void]])
+
+
+def test_get_names() -> None:
+    names: tuple[str | Any, ...]
+    names = rfn.get_names(np.empty((1,), dtype=[("A", int)]).dtype)
+    names = rfn.get_names(np.empty((1,), dtype=[("A", int), ("B", float)]).dtype)
+
+    adtype = np.dtype([("a", int), ("b", [("b_a", int), ("b_b", int)])])
+    names = rfn.get_names(adtype)
+
+
+def test_get_names_flat() -> None:
+    names: tuple[str, ...]
+    names = rfn.get_names_flat(np.empty((1,), dtype=[("A", int)]).dtype)
+    names = rfn.get_names_flat(np.empty((1,), dtype=[("A", int), ("B", float)]).dtype)
+
+    adtype = np.dtype([("a", int), ("b", [("b_a", int), ("b_b", int)])])
+    names = rfn.get_names_flat(adtype)
+
+
+def test_flatten_descr() -> None:
+    ndtype = np.dtype([("a", "<i4"), ("b", [("b_a", "<f8"), ("b_b", "<i4")])])
+    assert_type(rfn.flatten_descr(ndtype), tuple[tuple[str, np.dtype]])
+
+
+def test_get_fieldstructure() -> None:
+    ndtype = np.dtype([
+        ("A", int),
+        ("B", [("B_A", int), ("B_B", [("B_B_A", int), ("B_B_B", int)])]),
+    ])
+    assert_type(rfn.get_fieldstructure(ndtype), dict[str, list[str]])
+
+
+def test_merge_arrays() -> None:
+    assert_type(
+        rfn.merge_arrays((
+            np.ones((2,), np.int_),
+            np.ones((3,), np.float64),
+        )),
+        np.recarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_drop_fields() -> None:
+    ndtype = [("a", np.int64), ("b", [("b_a", np.double), ("b_b", np.int64)])]
+    a = np.ones((3,), dtype=ndtype)
+
+    assert_type(
+        rfn.drop_fields(a, "a"),
+        np.ndarray[tuple[int], np.dtype[np.void]],
+    )
+    assert_type(
+        rfn.drop_fields(a, "a", asrecarray=True),
+        np.rec.recarray[tuple[int], np.dtype[np.void]],
+    )
+    assert_type(
+        rfn.rec_drop_fields(a, "a"),
+        np.rec.recarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_rename_fields() -> None:
+    ndtype = [("a", np.int64), ("b", [("b_a", np.double), ("b_b", np.int64)])]
+    a = np.ones((3,), dtype=ndtype)
+
+    assert_type(
+        rfn.rename_fields(a, {"a": "A", "b_b": "B_B"}),
+        np.ndarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_repack_fields() -> None:
+    dt: np.dtype[np.void] = np.dtype("u1, <i8, <f8", align=True)
+
+    assert_type(rfn.repack_fields(dt), np.dtype[np.void])
+    assert_type(rfn.repack_fields(dt.type(0)), np.void)
+    assert_type(
+        rfn.repack_fields(np.ones((3,), dtype=dt)),
+        np.ndarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_structured_to_unstructured() -> None:
+    a = np.zeros(4, dtype=[("a", "i4"), ("b", "f4,u2"), ("c", "f4", 2)])
+    assert_type(rfn.structured_to_unstructured(a), npt.NDArray[Any])
+
+
+def unstructured_to_structured() -> None:
+    dt: np.dtype[np.void] = np.dtype([("a", "i4"), ("b", "f4,u2"), ("c", "f4", 2)])
+    a = np.arange(20, dtype=np.int32).reshape((4, 5))
+    assert_type(rfn.unstructured_to_structured(a, dt), npt.NDArray[np.void])
+
+
+def test_apply_along_fields() -> None:
+    b = np.ones(4, dtype=[("x", "i4"), ("y", "f4"), ("z", "f8")])
+    assert_type(
+        rfn.apply_along_fields(np.mean, b),
+        np.ndarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_assign_fields_by_name() -> None:
+    b = np.ones(4, dtype=[("x", "i4"), ("y", "f4"), ("z", "f8")])
+    assert_type(
+        rfn.apply_along_fields(np.mean, b),
+        np.ndarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_require_fields() -> None:
+    a = np.ones(4, dtype=[("a", "i4"), ("b", "f8"), ("c", "u1")])
+    assert_type(
+        rfn.require_fields(a, [("b", "f4"), ("c", "u1")]),
+        np.ndarray[tuple[int], np.dtype[np.void]],
+    )
+
+
+def test_stack_arrays() -> None:
+    x = np.zeros((2,), np.int32)
+    assert_type(
+        rfn.stack_arrays(x),
+        np.ndarray[tuple[int], np.dtype[np.int32]],
+    )
+
+    z = np.ones((2,), [("A", "|S3"), ("B", float)])
+    zz = np.ones((2,), [("A", "|S3"), ("B", np.float64), ("C", np.float64)])
+    assert_type(
+        rfn.stack_arrays((z, zz)),
+        np.ma.MaskedArray[tuple[Any, ...], np.dtype[np.void]],
+    )
+
+
+def test_find_duplicates() -> None:
+    ndtype = np.dtype([("a", int)])
+
+    a = np.ma.ones(7).view(ndtype)
+    assert_type(
+        rfn.find_duplicates(a),
+        np.ma.MaskedArray[tuple[int], np.dtype[np.void]],
+    )
+    assert_type(
+        rfn.find_duplicates(a, ignoremask=True, return_index=True),
+        tuple[
+            np.ma.MaskedArray[tuple[int], np.dtype[np.void]],
+            np.ndarray[tuple[int], np.dtype[np.int_]],
+        ],
+    )
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/scalars.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/scalars.py
new file mode 100644
index 0000000000000000000000000000000000000000..5ed41a26b92f8bef85e4d802c7408c742867ea99
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/scalars.py
@@ -0,0 +1,249 @@
+import datetime as dt
+
+import pytest
+
+import numpy as np
+
+b = np.bool()
+b_ = np.bool_()
+u8 = np.uint64()
+i8 = np.int64()
+f8 = np.float64()
+c16 = np.complex128()
+U = np.str_()
+S = np.bytes_()
+
+
+# Construction
+class D:
+    def __index__(self) -> int:
+        return 0
+
+
+class C:
+    def __complex__(self) -> complex:
+        return 3j
+
+
+class B:
+    def __int__(self) -> int:
+        return 4
+
+
+class A:
+    def __float__(self) -> float:
+        return 4.0
+
+
+np.complex64(3j)
+np.complex64(A())
+np.complex64(C())
+np.complex128(3j)
+np.complex128(C())
+np.complex128(None)
+np.complex64("1.2")
+np.complex128(b"2j")
+
+np.int8(4)
+np.int16(3.4)
+np.int32(4)
+np.int64(-1)
+np.uint8(B())
+np.uint32()
+np.int32("1")
+np.int64(b"2")
+
+np.float16(A())
+np.float32(16)
+np.float64(3.0)
+np.float64(None)
+np.float32("1")
+np.float16(b"2.5")
+
+np.uint64(D())
+np.float32(D())
+np.complex64(D())
+
+np.bytes_(b"hello")
+np.bytes_("hello", 'utf-8')
+np.bytes_("hello", encoding='utf-8')
+np.str_("hello")
+np.str_(b"hello", 'utf-8')
+np.str_(b"hello", encoding='utf-8')
+
+# Array-ish semantics
+np.int8().real
+np.int16().imag
+np.int32().data
+np.int64().flags
+
+np.uint8().itemsize * 2
+np.uint16().ndim + 1
+np.uint32().strides
+np.uint64().shape
+
+# Time structures
+np.datetime64()
+np.datetime64(0, "D")
+np.datetime64(0, b"D")
+np.datetime64(0, ('ms', 3))
+np.datetime64("2019")
+np.datetime64(b"2019")
+np.datetime64("2019", "D")
+np.datetime64("2019", "us")
+np.datetime64("2019", "as")
+np.datetime64(np.datetime64())
+np.datetime64(np.datetime64())
+np.datetime64(dt.datetime(2000, 5, 3))
+np.datetime64(dt.datetime(2000, 5, 3), "D")
+np.datetime64(dt.datetime(2000, 5, 3), "us")
+np.datetime64(dt.datetime(2000, 5, 3), "as")
+np.datetime64(dt.date(2000, 5, 3))
+np.datetime64(dt.date(2000, 5, 3), "D")
+np.datetime64(dt.date(2000, 5, 3), "us")
+np.datetime64(dt.date(2000, 5, 3), "as")
+np.datetime64(None)
+np.datetime64(None, "D")
+
+np.timedelta64()
+np.timedelta64(0)
+np.timedelta64(0, "D")
+np.timedelta64(0, ('ms', 3))
+np.timedelta64(0, b"D")
+np.timedelta64("3")
+np.timedelta64(b"5")
+np.timedelta64(np.timedelta64(2))
+np.timedelta64(dt.timedelta(2))
+np.timedelta64(None)
+np.timedelta64(None, "D")
+
+np.void(1)
+np.void(np.int64(1))
+np.void(True)
+np.void(np.bool(True))
+np.void(b"test")
+np.void(np.bytes_("test"))
+np.void(object(), [("a", "O"), ("b", "O")])
+np.void(object(), dtype=[("a", "O"), ("b", "O")])
+
+# Protocols
+i8 = np.int64()
+u8 = np.uint64()
+f8 = np.float64()
+c16 = np.complex128()
+b = np.bool()
+td = np.timedelta64()
+U = np.str_("1")
+S = np.bytes_("1")
+AR = np.array(1, dtype=np.float64)
+
+int(i8)
+int(u8)
+int(f8)
+int(b)
+int(td)
+int(U)
+int(S)
+int(AR)
+with pytest.warns(np.exceptions.ComplexWarning):
+    int(c16)
+
+float(i8)
+float(u8)
+float(f8)
+float(b_)
+float(td)
+float(U)
+float(S)
+float(AR)
+with pytest.warns(np.exceptions.ComplexWarning):
+    float(c16)
+
+complex(i8)
+complex(u8)
+complex(f8)
+complex(c16)
+complex(b_)
+complex(td)
+complex(U)
+complex(AR)
+
+
+# Misc
+c16.dtype
+c16.real
+c16.imag
+c16.real.real
+c16.real.imag
+c16.ndim
+c16.size
+c16.itemsize
+c16.shape
+c16.strides
+c16.squeeze()
+c16.byteswap()
+c16.transpose()
+
+# Aliases
+np.byte()
+np.short()
+np.intc()
+np.intp()
+np.int_()
+np.longlong()
+
+np.ubyte()
+np.ushort()
+np.uintc()
+np.uintp()
+np.uint()
+np.ulonglong()
+
+np.half()
+np.single()
+np.double()
+np.longdouble()
+
+np.csingle()
+np.cdouble()
+np.clongdouble()
+
+b.item()
+i8.item()
+u8.item()
+f8.item()
+c16.item()
+U.item()
+S.item()
+
+b.tolist()
+i8.tolist()
+u8.tolist()
+f8.tolist()
+c16.tolist()
+U.tolist()
+S.tolist()
+
+b.ravel()
+i8.ravel()
+u8.ravel()
+f8.ravel()
+c16.ravel()
+U.ravel()
+S.ravel()
+
+b.flatten()
+i8.flatten()
+u8.flatten()
+f8.flatten()
+c16.flatten()
+U.flatten()
+S.flatten()
+
+b.reshape(1)
+i8.reshape(1)
+u8.reshape(1)
+f8.reshape(1)
+c16.reshape(1)
+U.reshape(1)
+S.reshape(1)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/shape.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/shape.py
new file mode 100644
index 0000000000000000000000000000000000000000..9c6d9c4a67457868d7241ae5faef4fcdefefaed2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/shape.py
@@ -0,0 +1,19 @@
+from typing import Any, NamedTuple
+
+import numpy as np
+
+
+# Subtype of tuple[int, int]
+class XYGrid(NamedTuple):
+    x_axis: int
+    y_axis: int
+
+# Test variance of _ShapeT_co
+def accepts_2d(a: np.ndarray[tuple[int, int], Any]) -> None:
+    return None
+
+
+accepts_2d(np.empty(XYGrid(2, 2)))
+accepts_2d(np.zeros(XYGrid(2, 2), dtype=int))
+accepts_2d(np.ones(XYGrid(2, 2), dtype=int))
+accepts_2d(np.full(XYGrid(2, 2), fill_value=5, dtype=int))
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/simple.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/simple.py
new file mode 100644
index 0000000000000000000000000000000000000000..1549d182deba580a3810f2531e33707c1ef0a45a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/simple.py
@@ -0,0 +1,170 @@
+"""Simple expression that should pass with mypy."""
+import operator
+from collections.abc import Iterable
+
+import numpy as np
+import numpy.typing as npt
+
+# Basic checks
+array = np.array([1, 2])
+
+
+def ndarray_func(x: npt.NDArray[np.float64]) -> npt.NDArray[np.float64]:
+    return x
+
+
+ndarray_func(np.array([1, 2], dtype=np.float64))
+array == 1
+array.dtype == float
+
+# Dtype construction
+np.dtype(float)
+np.dtype(np.float64)
+np.dtype(None)
+np.dtype("float64")
+np.dtype(np.dtype(float))
+np.dtype(("U", 10))
+np.dtype((np.int32, (2, 2)))
+# Define the arguments on the previous line to prevent bidirectional
+# type inference in mypy from broadening the types.
+two_tuples_dtype = [("R", "u1"), ("G", "u1"), ("B", "u1")]
+np.dtype(two_tuples_dtype)
+
+three_tuples_dtype = [("R", "u1", 2)]
+np.dtype(three_tuples_dtype)
+
+mixed_tuples_dtype = [("R", "u1"), ("G", np.str_, 1)]
+np.dtype(mixed_tuples_dtype)
+
+shape_tuple_dtype = [("R", "u1", (2, 2))]
+np.dtype(shape_tuple_dtype)
+
+shape_like_dtype = [("R", "u1", (2, 2)), ("G", np.str_, 1)]
+np.dtype(shape_like_dtype)
+
+object_dtype = [("field1", object)]
+np.dtype(object_dtype)
+
+np.dtype((np.int32, (np.int8, 4)))
+
+# Dtype comparison
+np.dtype(float) == float
+np.dtype(float) != np.float64
+np.dtype(float) < None
+np.dtype(float) <= "float64"
+np.dtype(float) > np.dtype(float)
+np.dtype(float) >= np.dtype(("U", 10))
+
+# Iteration and indexing
+def iterable_func(x: Iterable[object]) -> Iterable[object]:
+    return x
+
+
+iterable_func(array)
+list(array)
+iter(array)
+zip(array, array)
+array[1]
+array[:]
+array[...]
+array[:] = 0
+
+array_2d = np.ones((3, 3))
+array_2d[:2, :2]
+array_2d[:2, :2] = 0
+array_2d[..., 0]
+array_2d[..., 0] = 2
+array_2d[-1, -1] = None
+
+array_obj = np.zeros(1, dtype=np.object_)
+array_obj[0] = slice(None)
+
+# Other special methods
+len(array)
+str(array)
+array_scalar = np.array(1)
+int(array_scalar)
+float(array_scalar)
+complex(array_scalar)
+bytes(array_scalar)
+operator.index(array_scalar)
+bool(array_scalar)
+
+# comparisons
+array < 1
+array <= 1
+array == 1
+array != 1
+array > 1
+array >= 1
+1 < array
+1 <= array
+1 == array
+1 != array
+1 > array
+1 >= array
+
+# binary arithmetic
+array + 1
+1 + array
+array += 1
+
+array - 1
+1 - array
+array -= 1
+
+array * 1
+1 * array
+array *= 1
+
+nonzero_array = np.array([1, 2])
+array / 1
+1 / nonzero_array
+float_array = np.array([1.0, 2.0])
+float_array /= 1
+
+array // 1
+1 // nonzero_array
+array //= 1
+
+array % 1
+1 % nonzero_array
+array %= 1
+
+divmod(array, 1)
+divmod(1, nonzero_array)
+
+array ** 1
+1 ** array
+array **= 1
+
+array << 1
+1 << array
+array <<= 1
+
+array >> 1
+1 >> array
+array >>= 1
+
+array & 1
+1 & array
+array &= 1
+
+array ^ 1
+1 ^ array
+array ^= 1
+
+array | 1
+1 | array
+array |= 1
+
+# unary arithmetic
+-array
++array
+abs(array)
+~array
+
+# Other methods
+array.transpose()
+
+array @ array
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufunc_config.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufunc_config.py
new file mode 100644
index 0000000000000000000000000000000000000000..e377d39cf6f55b3f2165bf50a3bd50284690e316
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufunc_config.py
@@ -0,0 +1,64 @@
+"""Typing tests for `numpy._core._ufunc_config`."""
+
+import numpy as np
+
+
+def func1(a: str, b: int) -> None:
+    return None
+
+
+def func2(a: str, b: int, c: float = 1.0) -> None:
+    return None
+
+
+def func3(a: str, b: int) -> int:
+    return 0
+
+
+class Write1:
+    def write(self, a: str) -> None:
+        return None
+
+
+class Write2:
+    def write(self, a: str, b: int = 1) -> None:
+        return None
+
+
+class Write3:
+    def write(self, a: str) -> int:
+        return 0
+
+
+_err_default = np.geterr()
+_bufsize_default = np.getbufsize()
+_errcall_default = np.geterrcall()
+
+try:
+    np.seterr(all=None)
+    np.seterr(divide="ignore")
+    np.seterr(over="warn")
+    np.seterr(under="call")
+    np.seterr(invalid="raise")
+    np.geterr()
+
+    np.setbufsize(4096)
+    np.getbufsize()
+
+    np.seterrcall(func1)
+    np.seterrcall(func2)
+    np.seterrcall(func3)
+    np.seterrcall(Write1())
+    np.seterrcall(Write2())
+    np.seterrcall(Write3())
+    np.geterrcall()
+
+    with np.errstate(call=func1, all="call"):
+        pass
+    with np.errstate(call=Write1(), divide="log", over="log"):
+        pass
+
+finally:
+    np.seterr(**_err_default)
+    np.setbufsize(_bufsize_default)
+    np.seterrcall(_errcall_default)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufunclike.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufunclike.py
new file mode 100644
index 0000000000000000000000000000000000000000..b54b950371f1a93ebd752298d8cbfcf9b131f43c
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufunclike.py
@@ -0,0 +1,52 @@
+from __future__ import annotations
+
+from typing import Any
+
+import numpy as np
+
+
+class Object:
+    def __ceil__(self) -> Object:
+        return self
+
+    def __floor__(self) -> Object:
+        return self
+
+    def __trunc__(self) -> Object:
+        return self
+
+    def __ge__(self, value: object) -> bool:
+        return True
+
+    def __array__(self, dtype: np.typing.DTypeLike | None = None,
+                  copy: bool | None = None) -> np.ndarray[Any, np.dtype[np.object_]]:
+        ret = np.empty((), dtype=object)
+        ret[()] = self
+        return ret
+
+
+AR_LIKE_b = [True, True, False]
+AR_LIKE_u = [np.uint32(1), np.uint32(2), np.uint32(3)]
+AR_LIKE_i = [1, 2, 3]
+AR_LIKE_f = [1.0, 2.0, 3.0]
+AR_LIKE_O = [Object(), Object(), Object()]
+AR_U: np.ndarray[Any, np.dtype[np.str_]] = np.zeros(3, dtype="U5")
+
+np.fix(AR_LIKE_b)  # type: ignore[deprecated]
+np.fix(AR_LIKE_u)  # type: ignore[deprecated]
+np.fix(AR_LIKE_i)  # type: ignore[deprecated]
+np.fix(AR_LIKE_f)  # type: ignore[deprecated]
+np.fix(AR_LIKE_O)  # type: ignore[deprecated]
+np.fix(AR_LIKE_f, out=AR_U)  # type: ignore[deprecated]
+
+np.isposinf(AR_LIKE_b)
+np.isposinf(AR_LIKE_u)
+np.isposinf(AR_LIKE_i)
+np.isposinf(AR_LIKE_f)
+np.isposinf(AR_LIKE_f, out=AR_U)
+
+np.isneginf(AR_LIKE_b)
+np.isneginf(AR_LIKE_u)
+np.isneginf(AR_LIKE_i)
+np.isneginf(AR_LIKE_f)
+np.isneginf(AR_LIKE_f, out=AR_U)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufuncs.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufuncs.py
new file mode 100644
index 0000000000000000000000000000000000000000..c0eb97a23e40a6467948d9d6ae0307204279e672
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/ufuncs.py
@@ -0,0 +1,16 @@
+import numpy as np
+
+np.sin(1)
+np.sin([1, 2, 3])
+np.sin(1, out=np.empty(1))
+np.matmul(np.ones((2, 2, 2)), np.ones((2, 2, 2)), axes=[(0, 1), (0, 1), (0, 1)])
+np.sin(1, signature="D->D")
+# NOTE: `np.generic` subclasses are not guaranteed to support addition;
+# re-enable this we can infer the exact return type of `np.sin(...)`.
+#
+# np.sin(1) + np.sin(1)
+np.sin.types[0]
+np.sin.__name__
+np.sin.__doc__
+
+np.abs(np.array([1]))
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/warnings_and_errors.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/warnings_and_errors.py
new file mode 100644
index 0000000000000000000000000000000000000000..77f0030dfb94b99bb9c3c3217296e9a70894d43f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/pass/warnings_and_errors.py
@@ -0,0 +1,6 @@
+import numpy.exceptions as ex
+
+ex.AxisError("test")
+ex.AxisError(1, ndim=2)
+ex.AxisError(1, ndim=2, msg_prefix="error")
+ex.AxisError(1, ndim=2, msg_prefix=None)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arithmetic.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arithmetic.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..c9599a0469bd9470a3b5ddb044dccad43fd3d30b
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arithmetic.pyi
@@ -0,0 +1,719 @@
+import datetime as dt
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy._typing import _64Bit, _128Bit
+
+b: bool
+c: complex
+f: float
+i: int
+
+c16: np.complex128
+c8: np.complex64
+
+# Can't directly import `np.float128` as it is not available on all platforms
+f16: np.floating[_128Bit]
+f8: np.float64
+f4: np.float32
+
+i8: np.int64
+i4: np.int32
+
+u8: np.uint64
+u4: np.uint32
+
+b_: np.bool
+
+M8: np.datetime64
+M8_none: np.datetime64[None]
+M8_date: np.datetime64[dt.date]
+M8_time: np.datetime64[dt.datetime]
+M8_int: np.datetime64[int]
+date: dt.date
+time: dt.datetime
+
+m8: np.timedelta64
+m8_none: np.timedelta64[None]
+m8_int: np.timedelta64[int]
+m8_delta: np.timedelta64[dt.timedelta]
+delta: dt.timedelta
+
+AR_b: npt.NDArray[np.bool]
+AR_u: npt.NDArray[np.uint32]
+AR_i: npt.NDArray[np.int64]
+AR_f: npt.NDArray[np.float64]
+AR_c: npt.NDArray[np.complex128]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+AR_O: npt.NDArray[np.object_]
+AR_S: npt.NDArray[np.bytes_]
+AR_U: npt.NDArray[np.str_]
+AR_T: np.ndarray[tuple[Any, ...], np.dtypes.StringDType]
+AR_floating: npt.NDArray[np.floating]
+AR_number: npt.NDArray[np.number]
+AR_Any: npt.NDArray[Any]
+
+AR_LIKE_b: list[bool]
+AR_LIKE_u: list[np.uint32]
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+AR_LIKE_c: list[complex]
+AR_LIKE_m: list[np.timedelta64]
+AR_LIKE_M: list[np.datetime64]
+AR_LIKE_O: list[np.object_]
+
+# Array subtraction
+
+assert_type(AR_number - AR_number, npt.NDArray[np.number])
+
+assert_type(AR_b - AR_LIKE_u, npt.NDArray[np.uint32])
+assert_type(AR_b - AR_LIKE_i, npt.NDArray[np.signedinteger])
+assert_type(AR_b - AR_LIKE_f, npt.NDArray[np.floating])
+assert_type(AR_b - AR_LIKE_c, npt.NDArray[np.complexfloating])
+assert_type(AR_b - AR_LIKE_m, npt.NDArray[np.timedelta64])
+assert_type(AR_b - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_u - AR_b, npt.NDArray[np.uint32])
+assert_type(AR_LIKE_i - AR_b, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_f - AR_b, npt.NDArray[np.floating])
+assert_type(AR_LIKE_c - AR_b, npt.NDArray[np.complexfloating])
+assert_type(AR_LIKE_m - AR_b, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_M - AR_b, npt.NDArray[np.datetime64])
+assert_type(AR_LIKE_O - AR_b, Any)
+
+assert_type(AR_u - AR_LIKE_b, npt.NDArray[np.uint32])
+assert_type(AR_u - AR_LIKE_u, npt.NDArray[np.unsignedinteger])
+assert_type(AR_u - AR_LIKE_i, npt.NDArray[np.signedinteger])
+assert_type(AR_u - AR_LIKE_f, npt.NDArray[np.floating])
+assert_type(AR_u - AR_LIKE_c, npt.NDArray[np.complexfloating])
+assert_type(AR_u - AR_LIKE_m, npt.NDArray[np.timedelta64])
+assert_type(AR_u - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b - AR_u, npt.NDArray[np.uint32])
+assert_type(AR_LIKE_u - AR_u, npt.NDArray[np.unsignedinteger])
+assert_type(AR_LIKE_i - AR_u, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_f - AR_u, npt.NDArray[np.floating])
+assert_type(AR_LIKE_c - AR_u, npt.NDArray[np.complexfloating])
+assert_type(AR_LIKE_m - AR_u, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_M - AR_u, npt.NDArray[np.datetime64])
+assert_type(AR_LIKE_O - AR_u, Any)
+
+assert_type(AR_i - AR_LIKE_b, npt.NDArray[np.int64])
+assert_type(AR_i - AR_LIKE_u, npt.NDArray[np.signedinteger])
+assert_type(AR_i - AR_LIKE_i, npt.NDArray[np.signedinteger])
+assert_type(AR_i - AR_LIKE_f, npt.NDArray[np.floating])
+assert_type(AR_i - AR_LIKE_c, npt.NDArray[np.complexfloating])
+assert_type(AR_i - AR_LIKE_m, npt.NDArray[np.timedelta64])
+assert_type(AR_i - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b - AR_i, npt.NDArray[np.int64])
+assert_type(AR_LIKE_u - AR_i, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_i - AR_i, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_f - AR_i, npt.NDArray[np.floating])
+assert_type(AR_LIKE_c - AR_i, npt.NDArray[np.complexfloating])
+assert_type(AR_LIKE_m - AR_i, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_M - AR_i, npt.NDArray[np.datetime64])
+assert_type(AR_LIKE_O - AR_i, Any)
+
+assert_type(AR_f - AR_LIKE_b, npt.NDArray[np.float64])
+assert_type(AR_f - AR_LIKE_u, npt.NDArray[np.float64])
+assert_type(AR_f - AR_LIKE_i, npt.NDArray[np.float64])
+assert_type(AR_f - AR_LIKE_f, npt.NDArray[np.float64])
+assert_type(AR_f - AR_LIKE_c, npt.NDArray[np.complexfloating])
+assert_type(AR_f - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b - AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_u - AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_i - AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_f - AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_c - AR_f, npt.NDArray[np.complexfloating])
+assert_type(AR_LIKE_O - AR_f, Any)
+
+assert_type(AR_c - AR_LIKE_b, npt.NDArray[np.complex128])
+assert_type(AR_c - AR_LIKE_u, npt.NDArray[np.complex128])
+assert_type(AR_c - AR_LIKE_i, npt.NDArray[np.complex128])
+assert_type(AR_c - AR_LIKE_f, npt.NDArray[np.complex128])
+assert_type(AR_c - AR_LIKE_c, npt.NDArray[np.complex128])
+assert_type(AR_c - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b - AR_c, npt.NDArray[np.complex128])
+assert_type(AR_LIKE_u - AR_c, npt.NDArray[np.complex128])
+assert_type(AR_LIKE_i - AR_c, npt.NDArray[np.complex128])
+assert_type(AR_LIKE_f - AR_c, npt.NDArray[np.complex128])
+assert_type(AR_LIKE_c - AR_c, npt.NDArray[np.complex128])
+assert_type(AR_LIKE_O - AR_c, Any)
+
+assert_type(AR_m - AR_LIKE_b, npt.NDArray[np.timedelta64])
+assert_type(AR_m - AR_LIKE_u, npt.NDArray[np.timedelta64])
+assert_type(AR_m - AR_LIKE_i, npt.NDArray[np.timedelta64])
+assert_type(AR_m - AR_LIKE_m, npt.NDArray[np.timedelta64])
+assert_type(AR_m - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b - AR_m, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_u - AR_m, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_i - AR_m, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_m - AR_m, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_M - AR_m, npt.NDArray[np.datetime64])
+assert_type(AR_LIKE_O - AR_m, Any)
+
+assert_type(AR_M - AR_LIKE_b, npt.NDArray[np.datetime64])
+assert_type(AR_M - AR_LIKE_u, npt.NDArray[np.datetime64])
+assert_type(AR_M - AR_LIKE_i, npt.NDArray[np.datetime64])
+assert_type(AR_M - AR_LIKE_m, npt.NDArray[np.datetime64])
+assert_type(AR_M - AR_LIKE_M, npt.NDArray[np.timedelta64])
+assert_type(AR_M - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_M - AR_M, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O - AR_M, Any)
+
+assert_type(AR_O - AR_LIKE_b, Any)
+assert_type(AR_O - AR_LIKE_u, Any)
+assert_type(AR_O - AR_LIKE_i, Any)
+assert_type(AR_O - AR_LIKE_f, Any)
+assert_type(AR_O - AR_LIKE_c, Any)
+assert_type(AR_O - AR_LIKE_m, Any)
+assert_type(AR_O - AR_LIKE_M, Any)
+assert_type(AR_O - AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b - AR_O, Any)
+assert_type(AR_LIKE_u - AR_O, Any)
+assert_type(AR_LIKE_i - AR_O, Any)
+assert_type(AR_LIKE_f - AR_O, Any)
+assert_type(AR_LIKE_c - AR_O, Any)
+assert_type(AR_LIKE_m - AR_O, Any)
+assert_type(AR_LIKE_M - AR_O, Any)
+assert_type(AR_LIKE_O - AR_O, Any)
+
+# Array "true" division
+
+assert_type(AR_f / b, npt.NDArray[np.float64])
+assert_type(AR_f / i, npt.NDArray[np.float64])
+assert_type(AR_f / f, npt.NDArray[np.float64])
+
+assert_type(b / AR_f, npt.NDArray[np.float64])
+assert_type(i / AR_f, npt.NDArray[np.float64])
+assert_type(f / AR_f, npt.NDArray[np.float64])
+
+assert_type(AR_b / AR_LIKE_b, npt.NDArray[np.float64])
+assert_type(AR_b / AR_LIKE_u, npt.NDArray[np.float64])
+assert_type(AR_b / AR_LIKE_i, npt.NDArray[np.float64])
+assert_type(AR_b / AR_LIKE_f, npt.NDArray[np.float64])
+assert_type(AR_b / AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b / AR_b, npt.NDArray[np.float64])
+assert_type(AR_LIKE_u / AR_b, npt.NDArray[np.float64])
+assert_type(AR_LIKE_i / AR_b, npt.NDArray[np.float64])
+assert_type(AR_LIKE_f / AR_b, npt.NDArray[np.float64])
+assert_type(AR_LIKE_O / AR_b, Any)
+
+assert_type(AR_u / AR_LIKE_b, npt.NDArray[np.float64])
+assert_type(AR_u / AR_LIKE_u, npt.NDArray[np.float64])
+assert_type(AR_u / AR_LIKE_i, npt.NDArray[np.float64])
+assert_type(AR_u / AR_LIKE_f, npt.NDArray[np.float64])
+assert_type(AR_u / AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b / AR_u, npt.NDArray[np.float64])
+assert_type(AR_LIKE_u / AR_u, npt.NDArray[np.float64])
+assert_type(AR_LIKE_i / AR_u, npt.NDArray[np.float64])
+assert_type(AR_LIKE_f / AR_u, npt.NDArray[np.float64])
+assert_type(AR_LIKE_m / AR_u, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O / AR_u, Any)
+
+assert_type(AR_i / AR_LIKE_b, npt.NDArray[np.float64])
+assert_type(AR_i / AR_LIKE_u, npt.NDArray[np.float64])
+assert_type(AR_i / AR_LIKE_i, npt.NDArray[np.float64])
+assert_type(AR_i / AR_LIKE_f, npt.NDArray[np.float64])
+assert_type(AR_i / AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b / AR_i, npt.NDArray[np.float64])
+assert_type(AR_LIKE_u / AR_i, npt.NDArray[np.float64])
+assert_type(AR_LIKE_i / AR_i, npt.NDArray[np.float64])
+assert_type(AR_LIKE_f / AR_i, npt.NDArray[np.float64])
+assert_type(AR_LIKE_m / AR_i, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O / AR_i, Any)
+
+assert_type(AR_f / AR_LIKE_b, npt.NDArray[np.float64])
+assert_type(AR_f / AR_LIKE_u, npt.NDArray[np.float64])
+assert_type(AR_f / AR_LIKE_i, npt.NDArray[np.float64])
+assert_type(AR_f / AR_LIKE_f, npt.NDArray[np.float64])
+assert_type(AR_f / AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b / AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_u / AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_i / AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_f / AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_m / AR_f, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O / AR_f, Any)
+
+assert_type(AR_m / AR_LIKE_u, npt.NDArray[np.timedelta64])
+assert_type(AR_m / AR_LIKE_i, npt.NDArray[np.timedelta64])
+assert_type(AR_m / AR_LIKE_f, npt.NDArray[np.timedelta64])
+assert_type(AR_m / AR_LIKE_m, npt.NDArray[np.float64])
+assert_type(AR_m / AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_m / AR_m, npt.NDArray[np.float64])
+assert_type(AR_LIKE_O / AR_m, Any)
+
+assert_type(AR_O / AR_LIKE_b, Any)
+assert_type(AR_O / AR_LIKE_u, Any)
+assert_type(AR_O / AR_LIKE_i, Any)
+assert_type(AR_O / AR_LIKE_f, Any)
+assert_type(AR_O / AR_LIKE_m, Any)
+assert_type(AR_O / AR_LIKE_M, Any)
+assert_type(AR_O / AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b / AR_O, Any)
+assert_type(AR_LIKE_u / AR_O, Any)
+assert_type(AR_LIKE_i / AR_O, Any)
+assert_type(AR_LIKE_f / AR_O, Any)
+assert_type(AR_LIKE_m / AR_O, Any)
+assert_type(AR_LIKE_M / AR_O, Any)
+assert_type(AR_LIKE_O / AR_O, Any)
+
+# Array floor division
+
+assert_type(AR_b // AR_LIKE_b, npt.NDArray[np.int8])
+assert_type(AR_b // AR_LIKE_u, npt.NDArray[np.uint32])
+assert_type(AR_b // AR_LIKE_i, npt.NDArray[np.signedinteger])
+assert_type(AR_b // AR_LIKE_f, npt.NDArray[np.floating])
+assert_type(AR_b // AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b // AR_b, npt.NDArray[np.int8])
+assert_type(AR_LIKE_u // AR_b, npt.NDArray[np.uint32])
+assert_type(AR_LIKE_i // AR_b, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_f // AR_b, npt.NDArray[np.floating])
+assert_type(AR_LIKE_O // AR_b, Any)
+
+assert_type(AR_u // AR_LIKE_b, npt.NDArray[np.uint32])
+assert_type(AR_u // AR_LIKE_u, npt.NDArray[np.unsignedinteger])
+assert_type(AR_u // AR_LIKE_i, npt.NDArray[np.signedinteger])
+assert_type(AR_u // AR_LIKE_f, npt.NDArray[np.floating])
+assert_type(AR_u // AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b // AR_u, npt.NDArray[np.uint32])
+assert_type(AR_LIKE_u // AR_u, npt.NDArray[np.unsignedinteger])
+assert_type(AR_LIKE_i // AR_u, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_f // AR_u, npt.NDArray[np.floating])
+assert_type(AR_LIKE_m // AR_u, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O // AR_u, Any)
+
+assert_type(AR_i // AR_LIKE_b, npt.NDArray[np.int64])
+assert_type(AR_i // AR_LIKE_u, npt.NDArray[np.signedinteger])
+assert_type(AR_i // AR_LIKE_i, npt.NDArray[np.signedinteger])
+assert_type(AR_i // AR_LIKE_f, npt.NDArray[np.floating])
+assert_type(AR_i // AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b // AR_i, npt.NDArray[np.int64])
+assert_type(AR_LIKE_u // AR_i, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_i // AR_i, npt.NDArray[np.signedinteger])
+assert_type(AR_LIKE_f // AR_i, npt.NDArray[np.floating])
+assert_type(AR_LIKE_m // AR_i, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O // AR_i, Any)
+
+assert_type(AR_f // AR_LIKE_b, npt.NDArray[np.float64])
+assert_type(AR_f // AR_LIKE_u, npt.NDArray[np.float64])
+assert_type(AR_f // AR_LIKE_i, npt.NDArray[np.float64])
+assert_type(AR_f // AR_LIKE_f, npt.NDArray[np.float64])
+assert_type(AR_f // AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b // AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_u // AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_i // AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_f // AR_f, npt.NDArray[np.float64])
+assert_type(AR_LIKE_m // AR_f, npt.NDArray[np.timedelta64])
+assert_type(AR_LIKE_O // AR_f, Any)
+
+assert_type(AR_m // AR_LIKE_u, npt.NDArray[np.timedelta64])
+assert_type(AR_m // AR_LIKE_i, npt.NDArray[np.timedelta64])
+assert_type(AR_m // AR_LIKE_f, npt.NDArray[np.timedelta64])
+assert_type(AR_m // AR_LIKE_m, npt.NDArray[np.int64])
+assert_type(AR_m // AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_m // AR_m, npt.NDArray[np.int64])
+assert_type(AR_LIKE_O // AR_m, Any)
+
+assert_type(AR_O // AR_LIKE_b, Any)
+assert_type(AR_O // AR_LIKE_u, Any)
+assert_type(AR_O // AR_LIKE_i, Any)
+assert_type(AR_O // AR_LIKE_f, Any)
+assert_type(AR_O // AR_LIKE_m, Any)
+assert_type(AR_O // AR_LIKE_M, Any)
+assert_type(AR_O // AR_LIKE_O, Any)
+
+assert_type(AR_LIKE_b // AR_O, Any)
+assert_type(AR_LIKE_u // AR_O, Any)
+assert_type(AR_LIKE_i // AR_O, Any)
+assert_type(AR_LIKE_f // AR_O, Any)
+assert_type(AR_LIKE_m // AR_O, Any)
+assert_type(AR_LIKE_M // AR_O, Any)
+assert_type(AR_LIKE_O // AR_O, Any)
+
+# unary ops
+
+assert_type(-f16, np.floating[_128Bit])
+assert_type(-c16, np.complex128)
+assert_type(-c8, np.complex64)
+assert_type(-f8, np.float64)
+assert_type(-f4, np.float32)
+assert_type(-i8, np.int64)
+assert_type(-i4, np.int32)
+assert_type(-u8, np.uint64)
+assert_type(-u4, np.uint32)
+assert_type(-m8, np.timedelta64)
+assert_type(-m8_none, np.timedelta64[None])
+assert_type(-m8_int, np.timedelta64[int])
+assert_type(-m8_delta, np.timedelta64[dt.timedelta])
+assert_type(-AR_f, npt.NDArray[np.float64])
+
+assert_type(+f16, np.floating[_128Bit])
+assert_type(+c16, np.complex128)
+assert_type(+c8, np.complex64)
+assert_type(+f8, np.float64)
+assert_type(+f4, np.float32)
+assert_type(+i8, np.int64)
+assert_type(+i4, np.int32)
+assert_type(+u8, np.uint64)
+assert_type(+u4, np.uint32)
+assert_type(+m8_none, np.timedelta64[None])
+assert_type(+m8_int, np.timedelta64[int])
+assert_type(+m8_delta, np.timedelta64[dt.timedelta])
+assert_type(+AR_f, npt.NDArray[np.float64])
+
+assert_type(abs(f16), np.floating[_128Bit])
+assert_type(abs(c16), np.float64)
+assert_type(abs(c8), np.float32)
+assert_type(abs(f8), np.float64)
+assert_type(abs(f4), np.float32)
+assert_type(abs(i8), np.int64)
+assert_type(abs(i4), np.int32)
+assert_type(abs(u8), np.uint64)
+assert_type(abs(u4), np.uint32)
+assert_type(abs(m8), np.timedelta64)
+assert_type(abs(m8_none), np.timedelta64[None])
+assert_type(abs(m8_int), np.timedelta64[int])
+assert_type(abs(m8_delta), np.timedelta64[dt.timedelta])
+assert_type(abs(b_), np.bool)
+assert_type(abs(AR_O), npt.NDArray[np.object_])
+
+# Time structures
+
+assert_type(M8 + m8, np.datetime64)
+assert_type(M8 + i, np.datetime64)
+assert_type(M8 + i8, np.datetime64)
+assert_type(M8 - M8, np.timedelta64)
+assert_type(M8 - i, np.datetime64)
+assert_type(M8 - i8, np.datetime64)
+
+assert_type(M8_none + m8, np.datetime64[None])
+assert_type(M8_none + i, np.datetime64[None])
+assert_type(M8_none + i8, np.datetime64[None])
+assert_type(M8_none - M8, np.timedelta64[None])
+assert_type(M8_none - m8, np.datetime64[None])
+assert_type(M8_none - i, np.datetime64[None])
+assert_type(M8_none - i8, np.datetime64[None])
+
+assert_type(m8 + m8, np.timedelta64)
+assert_type(m8 + i, np.timedelta64)
+assert_type(m8 + i8, np.timedelta64)
+assert_type(m8 - m8, np.timedelta64)
+assert_type(m8 - i, np.timedelta64)
+assert_type(m8 - i8, np.timedelta64)
+assert_type(m8 * f, np.timedelta64)
+assert_type(m8 * f4, np.timedelta64)
+assert_type(m8 * np.True_, np.timedelta64)
+assert_type(m8 / f, np.timedelta64)
+assert_type(m8 / f4, np.timedelta64)
+assert_type(m8 / m8, np.float64)
+assert_type(m8 // m8, np.int64)
+assert_type(m8 % m8, np.timedelta64)
+assert_type(divmod(m8, m8), tuple[np.int64, np.timedelta64])
+
+assert_type(m8_none + m8, np.timedelta64[None])
+assert_type(m8_none + i, np.timedelta64[None])
+assert_type(m8_none + i8, np.timedelta64[None])
+assert_type(m8_none - i, np.timedelta64[None])
+assert_type(m8_none - i8, np.timedelta64[None])
+
+assert_type(m8_int + i, np.timedelta64[int])
+assert_type(m8_int + m8_delta, np.timedelta64[int])
+assert_type(m8_int + m8, np.timedelta64[int | None])
+assert_type(m8_int - i, np.timedelta64[int])
+assert_type(m8_int - m8_delta, np.timedelta64[int])
+assert_type(m8_int - m8, np.timedelta64[int | None])
+
+assert_type(m8_delta + date, dt.date)
+assert_type(m8_delta + time, dt.datetime)
+assert_type(m8_delta + delta, dt.timedelta)
+assert_type(m8_delta - delta, dt.timedelta)
+assert_type(m8_delta / delta, float)
+assert_type(m8_delta // delta, int)
+assert_type(m8_delta % delta, dt.timedelta)
+assert_type(divmod(m8_delta, delta), tuple[int, dt.timedelta])
+
+# boolean
+
+assert_type(b_ / b, np.float64)
+assert_type(b_ / b_, np.float64)
+assert_type(b_ / i, np.float64)
+assert_type(b_ / i8, np.float64)
+assert_type(b_ / i4, np.float64)
+assert_type(b_ / u8, np.float64)
+assert_type(b_ / u4, np.float64)
+assert_type(b_ / f, np.float64)
+assert_type(b_ / f16, np.floating[_128Bit])
+assert_type(b_ / f8, np.float64)
+assert_type(b_ / f4, np.float32)
+assert_type(b_ / c, np.complex128)
+assert_type(b_ / c16, np.complex128)
+assert_type(b_ / c8, np.complex64)
+
+assert_type(b / b_, np.float64)
+assert_type(b_ / b_, np.float64)
+assert_type(i / b_, np.float64)
+assert_type(i8 / b_, np.float64)
+assert_type(i4 / b_, np.float64)
+assert_type(u8 / b_, np.float64)
+assert_type(u4 / b_, np.float64)
+assert_type(f / b_, np.float64)
+assert_type(f16 / b_, np.floating[_128Bit])
+assert_type(f8 / b_, np.float64)
+assert_type(f4 / b_, np.float32)
+assert_type(c / b_, np.complex128)
+assert_type(c16 / b_, np.complex128)
+assert_type(c8 / b_, np.complex64)
+
+# Complex
+
+assert_type(c16 + f16, np.complexfloating)
+assert_type(c16 + c16, np.complex128)
+assert_type(c16 + f8, np.complex128)
+assert_type(c16 + i8, np.complex128)
+assert_type(c16 + c8, np.complex128)
+assert_type(c16 + f4, np.complex128)
+assert_type(c16 + i4, np.complex128)
+assert_type(c16 + b_, np.complex128)
+assert_type(c16 + b, np.complex128)
+assert_type(c16 + c, np.complex128)
+assert_type(c16 + f, np.complex128)
+assert_type(c16 + AR_f, npt.NDArray[np.complex128])
+
+assert_type(f16 + c16, np.complexfloating)
+assert_type(c16 + c16, np.complex128)
+assert_type(f8 + c16, np.complex128)
+assert_type(i8 + c16, np.complex128)
+assert_type(c8 + c16, np.complex128 | np.complex64)
+assert_type(f4 + c16, np.complexfloating)
+assert_type(i4 + c16, np.complex128)
+assert_type(b_ + c16, np.complex128)
+assert_type(b + c16, np.complex128)
+assert_type(c + c16, np.complex128)
+assert_type(f + c16, np.complex128)
+assert_type(AR_f + c16, npt.NDArray[np.complex128])
+
+assert_type(c8 + f16, np.complex64 | np.complexfloating[_128Bit, _128Bit])
+assert_type(c8 + c16, np.complex64 | np.complex128)
+assert_type(c8 + f8, np.complex64 | np.complex128)
+assert_type(c8 + i8, np.complex64 | np.complexfloating[_64Bit, _64Bit])
+assert_type(c8 + c8, np.complex64)
+assert_type(c8 + f4, np.complex64)
+assert_type(c8 + i4, np.complex64)
+assert_type(c8 + b_, np.complex64)
+assert_type(c8 + b, np.complex64)
+assert_type(c8 + c, np.complex64 | np.complex128)
+assert_type(c8 + f, np.complex64 | np.complex128)
+assert_type(c8 + AR_f, npt.NDArray[np.complexfloating])
+
+assert_type(f16 + c8, np.complexfloating[_128Bit, _128Bit] | np.complex64)
+assert_type(c16 + c8, np.complex128)
+assert_type(f8 + c8, np.complexfloating[_64Bit, _64Bit])
+assert_type(i8 + c8, np.complexfloating[_64Bit, _64Bit] | np.complex64)
+assert_type(c8 + c8, np.complex64)
+assert_type(f4 + c8, np.complex64)
+assert_type(i4 + c8, np.complex64)
+assert_type(b_ + c8, np.complex64)
+assert_type(b + c8, np.complex64)
+assert_type(c + c8, np.complex64 | np.complex128)
+assert_type(f + c8, np.complex64 | np.complex128)
+assert_type(AR_f + c8, npt.NDArray[np.complexfloating])
+
+# Float
+
+assert_type(f8 + f16, np.floating)
+assert_type(f8 + f8, np.float64)
+assert_type(f8 + i8, np.float64)
+assert_type(f8 + f4, np.float64)
+assert_type(f8 + i4, np.float64)
+assert_type(f8 + b_, np.float64)
+assert_type(f8 + b, np.float64)
+assert_type(f8 + c, np.float64 | np.complex128)
+assert_type(f8 + f, np.float64)
+assert_type(f8 + AR_f, npt.NDArray[np.float64])
+
+assert_type(f16 + f8, np.floating)
+assert_type(f8 + f8, np.float64)
+assert_type(i8 + f8, np.float64)
+assert_type(f4 + f8, np.floating)
+assert_type(i4 + f8, np.float64)
+assert_type(b_ + f8, np.float64)
+assert_type(b + f8, np.float64)
+assert_type(c + f8, np.complex128 | np.float64)
+assert_type(f + f8, np.float64)
+assert_type(AR_f + f8, npt.NDArray[np.float64])
+
+assert_type(f4 + f16, np.floating)
+assert_type(f4 + f8, np.floating)
+assert_type(f4 + i8, np.floating)
+assert_type(f4 + f4, np.float32)
+assert_type(f4 + i4, np.floating)
+assert_type(f4 + b_, np.float32)
+assert_type(f4 + b, np.float32)
+assert_type(f4 + c, np.complexfloating)
+assert_type(f4 + f, np.float32)
+assert_type(f4 + AR_f, npt.NDArray[np.float64])
+
+assert_type(f16 + f4, np.floating)
+assert_type(f8 + f4, np.float64)
+assert_type(i8 + f4, np.floating)
+assert_type(f4 + f4, np.float32)
+assert_type(i4 + f4, np.floating)
+assert_type(b_ + f4, np.float32)
+assert_type(b + f4, np.float32)
+assert_type(c + f4, np.complexfloating)
+assert_type(f + f4, np.float32)
+assert_type(AR_f + f4, npt.NDArray[np.float64])
+
+# Int
+
+assert_type(i8 + i8, np.int64)
+assert_type(i8 + u8, Any)
+assert_type(i8 + i4, np.signedinteger)
+assert_type(i8 + u4, Any)
+assert_type(i8 + b_, np.int64)
+assert_type(i8 + b, np.int64)
+assert_type(i8 + c, np.complex128)
+assert_type(i8 + f, np.float64)
+assert_type(i8 + AR_f, npt.NDArray[np.float64])
+
+assert_type(u8 + u8, np.uint64)
+assert_type(u8 + i4, Any)
+assert_type(u8 + u4, np.unsignedinteger)
+assert_type(u8 + b_, np.uint64)
+assert_type(u8 + b, np.uint64)
+assert_type(u8 + c, np.complex128)
+assert_type(u8 + f, np.float64)
+assert_type(u8 + AR_f, npt.NDArray[np.float64])
+
+assert_type(i8 + i8, np.int64)
+assert_type(u8 + i8, Any)
+assert_type(i4 + i8, np.signedinteger)
+assert_type(u4 + i8, Any)
+assert_type(b_ + i8, np.int64)
+assert_type(b + i8, np.int64)
+assert_type(c + i8, np.complex128)
+assert_type(f + i8, np.float64)
+assert_type(AR_f + i8, npt.NDArray[np.float64])
+
+assert_type(u8 + u8, np.uint64)
+assert_type(i4 + u8, Any)
+assert_type(u4 + u8, np.unsignedinteger)
+assert_type(b_ + u8, np.uint64)
+assert_type(b + u8, np.uint64)
+assert_type(c + u8, np.complex128)
+assert_type(f + u8, np.float64)
+assert_type(AR_f + u8, npt.NDArray[np.float64])
+
+assert_type(i4 + i8, np.signedinteger)
+assert_type(i4 + i4, np.int32)
+assert_type(i4 + b_, np.int32)
+assert_type(i4 + b, np.int32)
+assert_type(i4 + AR_f, npt.NDArray[np.float64])
+
+assert_type(u4 + i8, Any)
+assert_type(u4 + i4, Any)
+assert_type(u4 + u8, np.unsignedinteger)
+assert_type(u4 + u4, np.uint32)
+assert_type(u4 + b_, np.uint32)
+assert_type(u4 + b, np.uint32)
+assert_type(u4 + AR_f, npt.NDArray[np.float64])
+
+assert_type(i8 + i4, np.signedinteger)
+assert_type(i4 + i4, np.int32)
+assert_type(b_ + i4, np.int32)
+assert_type(b + i4, np.int32)
+assert_type(AR_f + i4, npt.NDArray[np.float64])
+
+assert_type(i8 + u4, Any)
+assert_type(i4 + u4, Any)
+assert_type(u8 + u4, np.unsignedinteger)
+assert_type(u4 + u4, np.uint32)
+assert_type(b_ + u4, np.uint32)
+assert_type(b + u4, np.uint32)
+assert_type(AR_f + u4, npt.NDArray[np.float64])
+
+# Any
+
+assert_type(AR_Any + 2, npt.NDArray[Any])
+
+# regression tests for https://github.com/numpy/numpy/issues/28805
+
+assert_type(AR_floating + f, npt.NDArray[np.floating])
+assert_type(AR_floating - f, npt.NDArray[np.floating])
+assert_type(AR_floating * f, npt.NDArray[np.floating])
+assert_type(AR_floating ** f, npt.NDArray[np.floating])
+assert_type(AR_floating / f, npt.NDArray[np.floating])
+assert_type(AR_floating // f, npt.NDArray[np.floating])
+assert_type(AR_floating % f, npt.NDArray[np.floating])
+assert_type(divmod(AR_floating, f), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating]])
+
+assert_type(f + AR_floating, npt.NDArray[np.floating])
+assert_type(f - AR_floating, npt.NDArray[np.floating])
+assert_type(f * AR_floating, npt.NDArray[np.floating])
+assert_type(f ** AR_floating, npt.NDArray[np.floating])
+assert_type(f / AR_floating, npt.NDArray[np.floating])
+assert_type(f // AR_floating, npt.NDArray[np.floating])
+assert_type(f % AR_floating, npt.NDArray[np.floating])
+assert_type(divmod(f, AR_floating), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating]])
+
+# character-like
+
+assert_type(AR_S + b"", npt.NDArray[np.bytes_])
+assert_type(AR_S + [b""], npt.NDArray[np.bytes_])
+assert_type([b""] + AR_S, npt.NDArray[np.bytes_])
+assert_type(AR_S + AR_S, npt.NDArray[np.bytes_])
+
+assert_type(AR_U + "", npt.NDArray[np.str_])
+assert_type(AR_U + [""], npt.NDArray[np.str_])
+assert_type("" + AR_U, npt.NDArray[np.str_])
+assert_type([""] + AR_U, npt.NDArray[np.str_])
+assert_type(AR_U + AR_U, npt.NDArray[np.str_])
+
+assert_type(AR_T + "", np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(AR_T + [""], np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type("" + AR_T, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type([""] + AR_T, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(AR_T + AR_T, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(AR_T + AR_U, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(AR_U + AR_T, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+
+assert_type(AR_S * i, np.ndarray[tuple[Any, ...], np.dtype[np.bytes_]])
+assert_type(AR_S * AR_LIKE_i, np.ndarray[tuple[Any, ...], np.dtype[np.bytes_]])
+assert_type(AR_S * AR_i, np.ndarray[tuple[Any, ...], np.dtype[np.bytes_]])
+assert_type(i * AR_S, np.ndarray[tuple[Any, ...], np.dtype[np.bytes_]])
+# mypy incorrectly infers `AR_LIKE_i * AR_S` as `list[int]`
+assert_type(AR_i * AR_S, np.ndarray[tuple[Any, ...], np.dtype[np.bytes_]])
+
+assert_type(AR_U * i, np.ndarray[tuple[Any, ...], np.dtype[np.str_]])
+assert_type(AR_U * AR_LIKE_i, np.ndarray[tuple[Any, ...], np.dtype[np.str_]])
+assert_type(AR_U * AR_i, np.ndarray[tuple[Any, ...], np.dtype[np.str_]])
+assert_type(i * AR_U, np.ndarray[tuple[Any, ...], np.dtype[np.str_]])
+# mypy incorrectly infers `AR_LIKE_i * AR_U` as `list[int]`
+assert_type(AR_i * AR_U, np.ndarray[tuple[Any, ...], np.dtype[np.str_]])
+
+assert_type(AR_T * i, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(AR_T * AR_LIKE_i, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(AR_T * AR_i, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+assert_type(i * AR_T, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
+# mypy incorrectly infers `AR_LIKE_i * AR_T` as `list[int]`
+assert_type(AR_i * AR_T, np.ndarray[tuple[Any, ...], np.dtypes.StringDType])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/array_api_info.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/array_api_info.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..bf48658877cbb539ebb7e8e73e1f3566a1586028
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/array_api_info.pyi
@@ -0,0 +1,70 @@
+from typing import Literal, Never, assert_type
+
+import numpy as np
+
+info = np.__array_namespace_info__()
+
+assert_type(info.__module__, Literal["numpy"])
+
+assert_type(info.default_device(), Literal["cpu"])
+assert_type(info.devices()[0], Literal["cpu"])
+assert_type(info.devices()[-1], Literal["cpu"])
+
+assert_type(info.capabilities()["boolean indexing"], Literal[True])
+assert_type(info.capabilities()["data-dependent shapes"], Literal[True])
+
+assert_type(info.default_dtypes()["real floating"], np.dtype[np.float64])
+assert_type(info.default_dtypes()["complex floating"], np.dtype[np.complex128])
+assert_type(info.default_dtypes()["integral"], np.dtype[np.int_])
+assert_type(info.default_dtypes()["indexing"], np.dtype[np.intp])
+
+assert_type(info.dtypes()["bool"], np.dtype[np.bool])
+assert_type(info.dtypes()["int8"], np.dtype[np.int8])
+assert_type(info.dtypes()["uint8"], np.dtype[np.uint8])
+assert_type(info.dtypes()["float32"], np.dtype[np.float32])
+assert_type(info.dtypes()["complex64"], np.dtype[np.complex64])
+
+assert_type(info.dtypes(kind="bool")["bool"], np.dtype[np.bool])
+assert_type(info.dtypes(kind="signed integer")["int64"], np.dtype[np.int64])
+assert_type(info.dtypes(kind="unsigned integer")["uint64"], np.dtype[np.uint64])
+assert_type(info.dtypes(kind="integral")["int32"], np.dtype[np.int32])
+assert_type(info.dtypes(kind="integral")["uint32"], np.dtype[np.uint32])
+assert_type(info.dtypes(kind="real floating")["float64"], np.dtype[np.float64])
+assert_type(info.dtypes(kind="complex floating")["complex128"], np.dtype[np.complex128])
+assert_type(info.dtypes(kind="numeric")["int16"], np.dtype[np.int16])
+assert_type(info.dtypes(kind="numeric")["uint16"], np.dtype[np.uint16])
+assert_type(info.dtypes(kind="numeric")["float64"], np.dtype[np.float64])
+assert_type(info.dtypes(kind="numeric")["complex128"], np.dtype[np.complex128])
+
+assert_type(info.dtypes(kind=()), dict[Never, Never])
+
+assert_type(info.dtypes(kind=("bool",))["bool"], np.dtype[np.bool])
+assert_type(info.dtypes(kind=("signed integer",))["int64"], np.dtype[np.int64])
+assert_type(info.dtypes(kind=("integral",))["uint32"], np.dtype[np.uint32])
+assert_type(info.dtypes(kind=("complex floating",))["complex128"], np.dtype[np.complex128])
+assert_type(info.dtypes(kind=("numeric",))["float64"], np.dtype[np.float64])
+
+assert_type(
+    info.dtypes(kind=("signed integer", "unsigned integer"))["int8"],
+    np.dtype[np.int8],
+)
+assert_type(
+    info.dtypes(kind=("signed integer", "unsigned integer"))["uint8"],
+    np.dtype[np.uint8],
+)
+assert_type(
+    info.dtypes(kind=("integral", "real floating", "complex floating"))["int16"],
+    np.dtype[np.int16],
+)
+assert_type(
+    info.dtypes(kind=("integral", "real floating", "complex floating"))["uint16"],
+    np.dtype[np.uint16],
+)
+assert_type(
+    info.dtypes(kind=("integral", "real floating", "complex floating"))["float32"],
+    np.dtype[np.float32],
+)
+assert_type(
+    info.dtypes(kind=("integral", "real floating", "complex floating"))["complex64"],
+    np.dtype[np.complex64],
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/array_constructors.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/array_constructors.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..7d9f61c0f1aa7f4c29717128d5d790b561008274
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/array_constructors.pyi
@@ -0,0 +1,279 @@
+import sys
+from collections import deque
+from pathlib import Path
+from typing import Any, Generic, TypeVar, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+_ScalarT_co = TypeVar("_ScalarT_co", bound=np.generic, covariant=True)
+
+class SubClass(npt.NDArray[_ScalarT_co]): ...
+
+class IntoSubClass(Generic[_ScalarT_co]):
+    def __array__(self) -> SubClass[_ScalarT_co]: ...
+
+i8: np.int64
+
+A: npt.NDArray[np.float64]
+B: SubClass[np.float64]
+C: list[int]
+D: SubClass[np.float64 | np.int64]
+E: IntoSubClass[np.float64 | np.int64]
+
+mixed_shape: tuple[int, np.int64]
+
+def func(i: int, j: int, **kwargs: Any) -> SubClass[np.float64]: ...
+
+assert_type(np.empty_like(A), npt.NDArray[np.float64])
+assert_type(np.empty_like(B), SubClass[np.float64])
+assert_type(np.empty_like([1, 1.0]), npt.NDArray[Any])
+assert_type(np.empty_like(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.empty_like(A, dtype="c16"), npt.NDArray[Any])
+
+assert_type(np.array(A), npt.NDArray[np.float64])
+assert_type(np.array(B), npt.NDArray[np.float64])
+assert_type(np.array([1, 1.0]), npt.NDArray[Any])
+assert_type(np.array(deque([1, 2, 3])), npt.NDArray[Any])
+assert_type(np.array(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.array(A, dtype="c16"), npt.NDArray[Any])
+assert_type(np.array(A, like=A), npt.NDArray[np.float64])
+assert_type(np.array(A, subok=True), npt.NDArray[np.float64])
+assert_type(np.array(B, subok=True), SubClass[np.float64])
+assert_type(np.array(B, subok=True, ndmin=0), SubClass[np.float64])
+assert_type(np.array(B, subok=True, ndmin=1), SubClass[np.float64])
+assert_type(np.array(D), npt.NDArray[np.float64 | np.int64])
+assert_type(np.array(E, subok=True), SubClass[np.float64 | np.int64])
+# https://github.com/numpy/numpy/issues/29245
+assert_type(np.array([], dtype=np.bool), npt.NDArray[np.bool])
+
+assert_type(np.zeros([1, 5, 6]), npt.NDArray[np.float64])
+assert_type(np.zeros([1, 5, 6], dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.zeros([1, 5, 6], dtype="c16"), npt.NDArray[Any])
+assert_type(np.zeros(mixed_shape), npt.NDArray[np.float64])
+
+assert_type(np.empty([1, 5, 6]), npt.NDArray[np.float64])
+assert_type(np.empty([1, 5, 6], dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.empty([1, 5, 6], dtype="c16"), npt.NDArray[Any])
+assert_type(np.empty(mixed_shape), npt.NDArray[np.float64])
+
+assert_type(np.concatenate(A), npt.NDArray[np.float64])
+assert_type(np.concatenate([A, A]), npt.NDArray[Any])  # pyright correctly infers this as NDArray[float64]
+assert_type(np.concatenate([[1], A]), npt.NDArray[Any])
+assert_type(np.concatenate([[1], [1]]), npt.NDArray[Any])
+assert_type(np.concatenate((A, A)), npt.NDArray[np.float64])
+assert_type(np.concatenate(([1], [1])), npt.NDArray[Any])
+assert_type(np.concatenate([1, 1.0]), npt.NDArray[Any])
+assert_type(np.concatenate(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.concatenate(A, dtype="c16"), npt.NDArray[Any])
+assert_type(np.concatenate([1, 1.0], out=A), npt.NDArray[np.float64])
+
+assert_type(np.asarray(A), npt.NDArray[np.float64])
+assert_type(np.asarray(B), npt.NDArray[np.float64])
+assert_type(np.asarray([1, 1.0]), npt.NDArray[Any])
+assert_type(np.asarray(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.asarray(A, dtype="c16"), npt.NDArray[Any])
+
+assert_type(np.asanyarray(A), npt.NDArray[np.float64])
+assert_type(np.asanyarray(B), SubClass[np.float64])
+assert_type(np.asanyarray([1, 1.0]), npt.NDArray[Any])
+assert_type(np.asanyarray(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.asanyarray(A, dtype="c16"), npt.NDArray[Any])
+
+assert_type(np.ascontiguousarray(A), npt.NDArray[np.float64])
+assert_type(np.ascontiguousarray(B), npt.NDArray[np.float64])
+assert_type(np.ascontiguousarray([1, 1.0]), npt.NDArray[Any])
+assert_type(np.ascontiguousarray(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.ascontiguousarray(A, dtype="c16"), npt.NDArray[Any])
+
+assert_type(np.asfortranarray(A), npt.NDArray[np.float64])
+assert_type(np.asfortranarray(B), npt.NDArray[np.float64])
+assert_type(np.asfortranarray([1, 1.0]), npt.NDArray[Any])
+assert_type(np.asfortranarray(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.asfortranarray(A, dtype="c16"), npt.NDArray[Any])
+
+assert_type(np.fromstring("1 1 1", sep=" "), npt.NDArray[np.float64])
+assert_type(np.fromstring(b"1 1 1", sep=" "), npt.NDArray[np.float64])
+assert_type(np.fromstring("1 1 1", dtype=np.int64, sep=" "), npt.NDArray[np.int64])
+assert_type(np.fromstring(b"1 1 1", dtype=np.int64, sep=" "), npt.NDArray[np.int64])
+assert_type(np.fromstring("1 1 1", dtype="c16", sep=" "), npt.NDArray[Any])
+assert_type(np.fromstring(b"1 1 1", dtype="c16", sep=" "), npt.NDArray[Any])
+
+assert_type(np.fromfile("test.txt", sep=" "), npt.NDArray[np.float64])
+assert_type(np.fromfile("test.txt", dtype=np.int64, sep=" "), npt.NDArray[np.int64])
+assert_type(np.fromfile("test.txt", dtype="c16", sep=" "), npt.NDArray[Any])
+with open("test.txt") as f:
+    assert_type(np.fromfile(f, sep=" "), npt.NDArray[np.float64])
+    assert_type(np.fromfile(b"test.txt", sep=" "), npt.NDArray[np.float64])
+    assert_type(np.fromfile(Path("test.txt"), sep=" "), npt.NDArray[np.float64])
+
+assert_type(np.fromiter("12345", np.float64), npt.NDArray[np.float64])
+assert_type(np.fromiter("12345", float), npt.NDArray[Any])
+
+assert_type(np.frombuffer(A), npt.NDArray[np.float64])
+assert_type(np.frombuffer(A, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.frombuffer(A, dtype="c16"), npt.NDArray[Any])
+
+_x_bool: bool
+_x_int: int
+_x_float: float
+_x_timedelta: np.timedelta64
+_x_datetime: np.datetime64
+
+assert_type(np.arange(False, True), np.ndarray[tuple[int], np.dtype[np.int_]])
+assert_type(np.arange(10), np.ndarray[tuple[int], np.dtype[np.int_]])
+assert_type(np.arange(0, 10, step=2), np.ndarray[tuple[int], np.dtype[np.int_]])
+assert_type(np.arange(10.0), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.arange(0, stop=10.0), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.arange(_x_timedelta), np.ndarray[tuple[int], np.dtype[np.timedelta64[Any]]])
+assert_type(np.arange(0, _x_timedelta), np.ndarray[tuple[int], np.dtype[np.timedelta64[Any]]])
+assert_type(np.arange(_x_datetime, _x_datetime), np.ndarray[tuple[int], np.dtype[np.datetime64[Any]]])
+assert_type(np.arange(10, dtype=np.float64), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.arange(0, 10, step=2, dtype=np.int16), np.ndarray[tuple[int], np.dtype[np.int16]])
+assert_type(np.arange(10, dtype=int), np.ndarray[tuple[int], np.dtype[np.int_]])
+assert_type(np.arange(0, 10, dtype="f8"), np.ndarray[tuple[int], np.dtype])
+# https://github.com/numpy/numpy/issues/30628
+assert_type(np.arange("2025-12-20", "2025-12-23", dtype="datetime64[D]"), np.ndarray[tuple[int], np.dtype[np.datetime64[Any]]])
+
+assert_type(np.require(A), npt.NDArray[np.float64])
+assert_type(np.require(B), SubClass[np.float64])
+assert_type(np.require(B, requirements=None), SubClass[np.float64])
+assert_type(np.require(B, dtype=int), npt.NDArray[Any])
+assert_type(np.require(B, requirements="E"), npt.NDArray[Any])
+assert_type(np.require(B, requirements=["ENSUREARRAY"]), npt.NDArray[Any])
+assert_type(np.require(B, requirements={"F", "E"}), npt.NDArray[Any])
+assert_type(np.require(B, requirements=["C", "OWNDATA"]), SubClass[np.float64])
+assert_type(np.require(B, requirements="W"), SubClass[np.float64])
+assert_type(np.require(B, requirements="A"), SubClass[np.float64])
+assert_type(np.require(C), npt.NDArray[Any])
+
+assert_type(np.linspace(0, 10), npt.NDArray[np.float64])
+assert_type(np.linspace(0, 10j), npt.NDArray[np.complexfloating])
+assert_type(np.linspace(0, 10, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.linspace(0, 10, dtype=int), npt.NDArray[Any])
+assert_type(np.linspace(0, 10, retstep=True), tuple[npt.NDArray[np.float64], np.float64])
+assert_type(np.linspace(0j, 10, retstep=True), tuple[npt.NDArray[np.complexfloating], np.complexfloating])
+assert_type(np.linspace(0, 10, retstep=True, dtype=np.int64), tuple[npt.NDArray[np.int64], np.int64])
+assert_type(np.linspace(0j, 10, retstep=True, dtype=int), tuple[npt.NDArray[Any], Any])
+
+assert_type(np.logspace(0, 10), npt.NDArray[np.float64])
+assert_type(np.logspace(0, 10j), npt.NDArray[np.complexfloating])
+assert_type(np.logspace(0, 10, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.logspace(0, 10, dtype=int), npt.NDArray[Any])
+
+assert_type(np.geomspace(0, 10), npt.NDArray[np.float64])
+assert_type(np.geomspace(0, 10j), npt.NDArray[np.complexfloating])
+assert_type(np.geomspace(0, 10, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(np.geomspace(0, 10, dtype=int), npt.NDArray[Any])
+
+assert_type(np.zeros_like(A), npt.NDArray[np.float64])
+assert_type(np.zeros_like(C), npt.NDArray[Any])
+assert_type(np.zeros_like(A, dtype=float), npt.NDArray[Any])
+assert_type(np.zeros_like(B), SubClass[np.float64])
+assert_type(np.zeros_like(B, dtype=np.int64), npt.NDArray[np.int64])
+
+assert_type(np.ones_like(A), npt.NDArray[np.float64])
+assert_type(np.ones_like(C), npt.NDArray[Any])
+assert_type(np.ones_like(A, dtype=float), npt.NDArray[Any])
+assert_type(np.ones_like(B), SubClass[np.float64])
+assert_type(np.ones_like(B, dtype=np.int64), npt.NDArray[np.int64])
+
+assert_type(np.full_like(A, i8), npt.NDArray[np.float64])
+assert_type(np.full_like(C, i8), npt.NDArray[Any])
+assert_type(np.full_like(A, i8, dtype=int), npt.NDArray[Any])
+assert_type(np.full_like(B, i8), SubClass[np.float64])
+assert_type(np.full_like(B, i8, dtype=np.int64), npt.NDArray[np.int64])
+
+_size: int
+_shape_0d: tuple[()]
+_shape_1d: tuple[int]
+_shape_2d: tuple[int, int]
+_shape_nd: tuple[int, ...]
+_shape_like: list[int]
+
+assert_type(np.ones(_shape_0d), np.ndarray[tuple[()], np.dtype[np.float64]])
+assert_type(np.ones(_size), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.ones(_shape_2d), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.ones(_shape_nd), np.ndarray[tuple[int, ...], np.dtype[np.float64]])
+assert_type(np.ones(_shape_1d, dtype=np.int64), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.ones(_shape_like), npt.NDArray[np.float64])
+assert_type(
+    np.ones(_shape_like, dtype=np.dtypes.Int64DType()),
+    np.ndarray[tuple[Any, ...], np.dtypes.Int64DType],
+)
+assert_type(np.ones(_shape_like, dtype=int), npt.NDArray[Any])
+assert_type(np.ones(mixed_shape), npt.NDArray[np.float64])
+
+assert_type(np.full(_size, i8), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.full(_shape_2d, i8), np.ndarray[tuple[int, int], np.dtype[np.int64]])
+assert_type(np.full(_shape_like, i8), npt.NDArray[np.int64])
+assert_type(np.full(_shape_like, 42), npt.NDArray[Any])
+assert_type(np.full(_size, i8, dtype=np.float64), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.full(_size, i8, dtype=float), np.ndarray[tuple[int], np.dtype])
+assert_type(np.full(_shape_like, 42, dtype=float), npt.NDArray[Any])
+assert_type(np.full(_shape_0d, i8, dtype=object), np.ndarray[tuple[()], np.dtype])
+
+assert_type(np.indices([1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.indices([1, 2, 3], sparse=True), tuple[npt.NDArray[np.int_], ...])
+
+assert_type(np.fromfunction(func, (3, 5)), SubClass[np.float64])
+
+assert_type(np.identity(3), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.identity(3, dtype=np.int8), np.ndarray[tuple[int, int], np.dtype[np.int8]])
+assert_type(np.identity(3, dtype=bool), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.identity(3, dtype="bool"), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.identity(3, dtype="b1"), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.identity(3, dtype="?"), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.identity(3, dtype=int), np.ndarray[tuple[int, int], np.dtype[np.int_ | Any]])
+assert_type(np.identity(3, dtype="int"), np.ndarray[tuple[int, int], np.dtype[np.int_ | Any]])
+assert_type(np.identity(3, dtype="n"), np.ndarray[tuple[int, int], np.dtype[np.int_ | Any]])
+assert_type(np.identity(3, dtype=float), np.ndarray[tuple[int, int], np.dtype[np.float64 | Any]])
+assert_type(np.identity(3, dtype="float"), np.ndarray[tuple[int, int], np.dtype[np.float64 | Any]])
+assert_type(np.identity(3, dtype="f8"), np.ndarray[tuple[int, int], np.dtype[np.float64 | Any]])
+assert_type(np.identity(3, dtype="d"), np.ndarray[tuple[int, int], np.dtype[np.float64 | Any]])
+assert_type(np.identity(3, dtype=complex), np.ndarray[tuple[int, int], np.dtype[np.complex128 | Any]])
+assert_type(np.identity(3, dtype="complex"), np.ndarray[tuple[int, int], np.dtype[np.complex128 | Any]])
+assert_type(np.identity(3, dtype="c16"), np.ndarray[tuple[int, int], np.dtype[np.complex128 | Any]])
+assert_type(np.identity(3, dtype="D"), np.ndarray[tuple[int, int], np.dtype[np.complex128 | Any]])
+
+assert_type(np.atleast_1d(A), npt.NDArray[np.float64])
+assert_type(np.atleast_1d(C), npt.NDArray[Any])
+assert_type(np.atleast_1d(A, A), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.atleast_1d(A, C), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+assert_type(np.atleast_1d(C, C), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+assert_type(np.atleast_1d(A, A, A), tuple[npt.NDArray[np.float64], ...])
+assert_type(np.atleast_1d(C, C, C), tuple[npt.NDArray[Any], ...])
+
+assert_type(np.atleast_2d(A), npt.NDArray[np.float64])
+assert_type(np.atleast_2d(A, A), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.atleast_2d(A, A, A), tuple[npt.NDArray[np.float64], ...])
+
+assert_type(np.atleast_3d(A), npt.NDArray[np.float64])
+assert_type(np.atleast_3d(A, A), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.atleast_3d(A, A, A), tuple[npt.NDArray[np.float64], ...])
+
+assert_type(np.vstack([A, A]), npt.NDArray[np.float64])
+assert_type(np.vstack([A, A], dtype=np.float32), npt.NDArray[np.float32])
+assert_type(np.vstack([A, C]), npt.NDArray[Any])
+assert_type(np.vstack([C, C]), npt.NDArray[Any])
+
+assert_type(np.hstack([A, A]), npt.NDArray[np.float64])
+assert_type(np.hstack([A, A], dtype=np.float32), npt.NDArray[np.float32])
+
+assert_type(np.stack([A, A]), npt.NDArray[np.float64])
+assert_type(np.stack([A, A], dtype=np.float32), npt.NDArray[np.float32])
+assert_type(np.stack([A, C]), npt.NDArray[Any])
+assert_type(np.stack([C, C]), npt.NDArray[Any])
+assert_type(np.stack([A, A], axis=0), npt.NDArray[np.float64])
+assert_type(np.stack([A, A], out=B), SubClass[np.float64])
+
+assert_type(np.block([[A, A], [A, A]]), npt.NDArray[Any])  # pyright correctly infers this as NDArray[float64]
+assert_type(np.block(C), npt.NDArray[Any])
+
+if sys.version_info >= (3, 12):
+    from collections.abc import Buffer
+
+    def create_array(obj: npt.ArrayLike) -> npt.NDArray[Any]: ...
+
+    buffer: Buffer
+    assert_type(create_array(buffer), npt.NDArray[Any])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arraypad.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arraypad.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..0818e3d3490820472ff2f3528932ab58e7d7bd98
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arraypad.pyi
@@ -0,0 +1,27 @@
+from collections.abc import Mapping
+from typing import Any, SupportsIndex, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+def mode_func(
+    ar: npt.NDArray[np.number],
+    width: tuple[int, int],
+    iaxis: SupportsIndex,
+    kwargs: Mapping[str, Any],
+) -> None: ...
+
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+AR_LIKE: list[int]
+
+assert_type(np.pad(AR_i8, (2, 3), "constant"), npt.NDArray[np.int64])
+assert_type(np.pad(AR_LIKE, (2, 3), "constant"), npt.NDArray[Any])
+
+assert_type(np.pad(AR_f8, (2, 3), mode_func), npt.NDArray[np.float64])
+assert_type(np.pad(AR_f8, (2, 3), mode_func, a=1, b=2), npt.NDArray[np.float64])
+
+assert_type(np.pad(AR_i8, {-1: (2, 3)}), npt.NDArray[np.int64])
+assert_type(np.pad(AR_i8, {-2: 4}), npt.NDArray[np.int64])
+pad_width: dict[int, int | tuple[int, int]] = {-1: (2, 3), -2: 4}
+assert_type(np.pad(AR_i8, pad_width), npt.NDArray[np.int64])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arrayprint.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arrayprint.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..56ac529da369cc51d21e0b481c61c77690d99323
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arrayprint.pyi
@@ -0,0 +1,25 @@
+import contextlib
+from collections.abc import Callable
+from typing import assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy._core.arrayprint import _FormatOptions
+
+AR: npt.NDArray[np.int64]
+func_float: Callable[[np.floating], str]
+func_int: Callable[[np.integer], str]
+
+assert_type(np.get_printoptions(), _FormatOptions)
+assert_type(
+    np.array2string(AR, formatter={"float_kind": func_float, "int_kind": func_int}),
+    str,
+)
+assert_type(np.format_float_scientific(1.0), str)
+assert_type(np.format_float_positional(1), str)
+assert_type(np.array_repr(AR), str)
+assert_type(np.array_str(AR), str)
+
+assert_type(np.printoptions(), contextlib._GeneratorContextManager[_FormatOptions])
+with np.printoptions() as dct:
+    assert_type(dct, _FormatOptions)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arraysetops.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arraysetops.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..5da28014c383653753f6ec9429576cbacc93fe17
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arraysetops.pyi
@@ -0,0 +1,74 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy.lib._arraysetops_impl import (
+    UniqueAllResult,
+    UniqueCountsResult,
+    UniqueInverseResult,
+)
+
+AR_b: npt.NDArray[np.bool]
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+AR_M: npt.NDArray[np.datetime64]
+AR_O: npt.NDArray[np.object_]
+
+AR_LIKE_f8: list[float]
+
+assert_type(np.ediff1d(AR_b), npt.NDArray[np.int8])
+assert_type(np.ediff1d(AR_i8, to_end=[1, 2, 3]), npt.NDArray[np.int64])
+assert_type(np.ediff1d(AR_M), npt.NDArray[np.timedelta64])
+assert_type(np.ediff1d(AR_O), npt.NDArray[np.object_])
+assert_type(np.ediff1d(AR_LIKE_f8, to_begin=[1, 1.5]), npt.NDArray[Any])
+
+assert_type(np.intersect1d(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.intersect1d(AR_M, AR_M, assume_unique=True), npt.NDArray[np.datetime64])
+assert_type(np.intersect1d(AR_f8, AR_i8), npt.NDArray[Any])
+assert_type(
+    np.intersect1d(AR_f8, AR_f8, return_indices=True),
+    tuple[npt.NDArray[np.float64], npt.NDArray[np.intp], npt.NDArray[np.intp]],
+)
+
+assert_type(np.setxor1d(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.setxor1d(AR_M, AR_M, assume_unique=True), npt.NDArray[np.datetime64])
+assert_type(np.setxor1d(AR_f8, AR_i8), npt.NDArray[Any])
+
+assert_type(np.isin(AR_i8, AR_i8), npt.NDArray[np.bool])
+assert_type(np.isin(AR_M, AR_M, assume_unique=True), npt.NDArray[np.bool])
+assert_type(np.isin(AR_f8, AR_i8), npt.NDArray[np.bool])
+assert_type(np.isin(AR_f8, AR_LIKE_f8, invert=True), npt.NDArray[np.bool])
+
+assert_type(np.union1d(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.union1d(AR_M, AR_M), npt.NDArray[np.datetime64])
+assert_type(np.union1d(AR_f8, AR_i8), npt.NDArray[Any])
+
+assert_type(np.setdiff1d(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.setdiff1d(AR_M, AR_M, assume_unique=True), npt.NDArray[np.datetime64])
+assert_type(np.setdiff1d(AR_f8, AR_i8), npt.NDArray[Any])
+
+assert_type(np.unique(AR_f8), npt.NDArray[np.float64])
+assert_type(np.unique(AR_LIKE_f8, axis=0), npt.NDArray[Any])
+assert_type(np.unique(AR_f8, return_index=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_index=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_f8, return_inverse=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_inverse=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_f8, return_counts=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_counts=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_f8, return_index=True, return_inverse=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_index=True, return_inverse=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_f8, return_index=True, return_counts=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_index=True, return_counts=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_f8, return_inverse=True, return_counts=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_inverse=True, return_counts=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_f8, return_index=True, return_inverse=True, return_counts=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.intp], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+assert_type(np.unique(AR_LIKE_f8, return_index=True, return_inverse=True, return_counts=True), tuple[npt.NDArray[Any], npt.NDArray[np.intp], npt.NDArray[np.intp], npt.NDArray[np.intp]])
+
+assert_type(np.unique_all(AR_f8), UniqueAllResult[np.float64])
+assert_type(np.unique_all(AR_LIKE_f8), UniqueAllResult[Any])
+assert_type(np.unique_counts(AR_f8), UniqueCountsResult[np.float64])
+assert_type(np.unique_counts(AR_LIKE_f8), UniqueCountsResult[Any])
+assert_type(np.unique_inverse(AR_f8), UniqueInverseResult[np.float64])
+assert_type(np.unique_inverse(AR_LIKE_f8), UniqueInverseResult[Any])
+assert_type(np.unique_values(AR_f8), npt.NDArray[np.float64])
+assert_type(np.unique_values(AR_LIKE_f8), npt.NDArray[Any])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arrayterator.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arrayterator.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..8424490e1081f49d526304db67184497e48b372d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/arrayterator.pyi
@@ -0,0 +1,27 @@
+from collections.abc import Generator
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_i8: npt.NDArray[np.int64]
+ar_iter = np.lib.Arrayterator(AR_i8)
+
+assert_type(ar_iter.var, npt.NDArray[np.int64])
+assert_type(ar_iter.buf_size, int | None)
+assert_type(ar_iter.start, list[int])
+assert_type(ar_iter.stop, list[int])
+assert_type(ar_iter.step, list[int])
+assert_type(ar_iter.shape, tuple[Any, ...])
+assert_type(ar_iter.flat, Generator[np.int64])
+
+assert_type(ar_iter.__array__(), npt.NDArray[np.int64])
+
+for i in ar_iter:
+    assert_type(i, npt.NDArray[np.int64])
+
+assert_type(ar_iter[0], np.lib.Arrayterator[tuple[Any, ...], np.dtype[np.int64]])
+assert_type(ar_iter[...], np.lib.Arrayterator[tuple[Any, ...], np.dtype[np.int64]])
+assert_type(ar_iter[:], np.lib.Arrayterator[tuple[Any, ...], np.dtype[np.int64]])
+assert_type(ar_iter[0, 0, 0], np.lib.Arrayterator[tuple[Any, ...], np.dtype[np.int64]])
+assert_type(ar_iter[..., 0, :], np.lib.Arrayterator[tuple[Any, ...], np.dtype[np.int64]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/bitwise_ops.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/bitwise_ops.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..0069749046d4fb02d04db8b7036a94d24060acf5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/bitwise_ops.pyi
@@ -0,0 +1,166 @@
+from typing import Literal as L, TypeAlias, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+FalseType: TypeAlias = L[False]
+TrueType: TypeAlias = L[True]
+
+i4: np.int32
+i8: np.int64
+
+u4: np.uint32
+u8: np.uint64
+
+b_: np.bool[bool]
+b0_: np.bool[FalseType]
+b1_: np.bool[TrueType]
+
+b: bool
+b0: FalseType
+b1: TrueType
+
+i: int
+
+AR: npt.NDArray[np.int32]
+
+assert_type(i8 << i8, np.int64)
+assert_type(i8 >> i8, np.int64)
+assert_type(i8 | i8, np.int64)
+assert_type(i8 ^ i8, np.int64)
+assert_type(i8 & i8, np.int64)
+
+assert_type(i8 << AR, npt.NDArray[np.signedinteger])
+assert_type(i8 >> AR, npt.NDArray[np.signedinteger])
+assert_type(i8 | AR, npt.NDArray[np.signedinteger])
+assert_type(i8 ^ AR, npt.NDArray[np.signedinteger])
+assert_type(i8 & AR, npt.NDArray[np.signedinteger])
+
+assert_type(i4 << i4, np.int32)
+assert_type(i4 >> i4, np.int32)
+assert_type(i4 | i4, np.int32)
+assert_type(i4 ^ i4, np.int32)
+assert_type(i4 & i4, np.int32)
+
+assert_type(i8 << i4, np.signedinteger)
+assert_type(i8 >> i4, np.signedinteger)
+assert_type(i8 | i4, np.signedinteger)
+assert_type(i8 ^ i4, np.signedinteger)
+assert_type(i8 & i4, np.signedinteger)
+
+assert_type(i8 << b_, np.int64)
+assert_type(i8 >> b_, np.int64)
+assert_type(i8 | b_, np.int64)
+assert_type(i8 ^ b_, np.int64)
+assert_type(i8 & b_, np.int64)
+
+assert_type(i8 << b, np.int64)
+assert_type(i8 >> b, np.int64)
+assert_type(i8 | b, np.int64)
+assert_type(i8 ^ b, np.int64)
+assert_type(i8 & b, np.int64)
+
+assert_type(u8 << u8, np.uint64)
+assert_type(u8 >> u8, np.uint64)
+assert_type(u8 | u8, np.uint64)
+assert_type(u8 ^ u8, np.uint64)
+assert_type(u8 & u8, np.uint64)
+
+assert_type(u8 << AR, npt.NDArray[np.signedinteger])
+assert_type(u8 >> AR, npt.NDArray[np.signedinteger])
+assert_type(u8 | AR, npt.NDArray[np.signedinteger])
+assert_type(u8 ^ AR, npt.NDArray[np.signedinteger])
+assert_type(u8 & AR, npt.NDArray[np.signedinteger])
+
+assert_type(u4 << u4, np.uint32)
+assert_type(u4 >> u4, np.uint32)
+assert_type(u4 | u4, np.uint32)
+assert_type(u4 ^ u4, np.uint32)
+assert_type(u4 & u4, np.uint32)
+
+assert_type(u4 << i4, np.signedinteger)
+assert_type(u4 >> i4, np.signedinteger)
+assert_type(u4 | i4, np.signedinteger)
+assert_type(u4 ^ i4, np.signedinteger)
+assert_type(u4 & i4, np.signedinteger)
+
+assert_type(u4 << i, np.uint32)
+assert_type(u4 >> i, np.uint32)
+assert_type(u4 | i, np.uint32)
+assert_type(u4 ^ i, np.uint32)
+assert_type(u4 & i, np.uint32)
+
+assert_type(u8 << b_, np.uint64)
+assert_type(u8 >> b_, np.uint64)
+assert_type(u8 | b_, np.uint64)
+assert_type(u8 ^ b_, np.uint64)
+assert_type(u8 & b_, np.uint64)
+
+assert_type(u8 << b, np.uint64)
+assert_type(u8 >> b, np.uint64)
+assert_type(u8 | b, np.uint64)
+assert_type(u8 ^ b, np.uint64)
+assert_type(u8 & b, np.uint64)
+
+assert_type(b_ << b_, np.int8)
+assert_type(b_ >> b_, np.int8)
+assert_type(b_ | b_, np.bool)
+assert_type(b_ ^ b_, np.bool)
+assert_type(b_ & b_, np.bool)
+
+assert_type(b_ << AR, npt.NDArray[np.signedinteger])
+assert_type(b_ >> AR, npt.NDArray[np.signedinteger])
+assert_type(b_ | AR, npt.NDArray[np.signedinteger])
+assert_type(b_ ^ AR, npt.NDArray[np.signedinteger])
+assert_type(b_ & AR, npt.NDArray[np.signedinteger])
+
+assert_type(b_ << b, np.int8)
+assert_type(b_ >> b, np.int8)
+assert_type(b_ | b, np.bool)
+assert_type(b_ ^ b, np.bool)
+assert_type(b_ & b, np.bool)
+
+assert_type(b_ << i, np.int_)
+assert_type(b_ >> i, np.int_)
+assert_type(b_ | i, np.bool | np.int_)
+assert_type(b_ ^ i, np.bool | np.int_)
+assert_type(b_ & i, np.bool | np.int_)
+
+assert_type(~i8, np.int64)
+assert_type(~i4, np.int32)
+assert_type(~u8, np.uint64)
+assert_type(~u4, np.uint32)
+assert_type(~b_, np.bool)
+assert_type(~b0_, np.bool[TrueType])
+assert_type(~b1_, np.bool[FalseType])
+assert_type(~AR, npt.NDArray[np.int32])
+
+assert_type(b_ | b0_, np.bool)
+assert_type(b0_ | b_, np.bool)
+assert_type(b_ | b1_, np.bool[TrueType])
+assert_type(b1_ | b_, np.bool[TrueType])
+
+assert_type(b_ ^ b0_, np.bool)
+assert_type(b0_ ^ b_, np.bool)
+assert_type(b_ ^ b1_, np.bool)
+assert_type(b1_ ^ b_, np.bool)
+
+assert_type(b_ & b0_, np.bool[FalseType])
+assert_type(b0_ & b_, np.bool[FalseType])
+assert_type(b_ & b1_, np.bool)
+assert_type(b1_ & b_, np.bool)
+
+assert_type(b0_ | b0_, np.bool[FalseType])
+assert_type(b0_ | b1_, np.bool[TrueType])
+assert_type(b1_ | b0_, np.bool[TrueType])
+assert_type(b1_ | b1_, np.bool[TrueType])
+
+assert_type(b0_ ^ b0_, np.bool[FalseType])
+assert_type(b0_ ^ b1_, np.bool[TrueType])
+assert_type(b1_ ^ b0_, np.bool[TrueType])
+assert_type(b1_ ^ b1_, np.bool[FalseType])
+
+assert_type(b0_ & b0_, np.bool[FalseType])
+assert_type(b0_ & b1_, np.bool[FalseType])
+assert_type(b1_ & b0_, np.bool[FalseType])
+assert_type(b1_ & b1_, np.bool[TrueType])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/char.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/char.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..11c14bbd5453fddede0dc388223046a6c5f31b45
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/char.pyi
@@ -0,0 +1,225 @@
+from typing import TypeAlias, assert_type
+
+import numpy as np
+import numpy._typing as np_t
+import numpy.typing as npt
+
+AR_T_alias: TypeAlias = np.ndarray[np_t._AnyShape, np.dtypes.StringDType]
+AR_TU_alias: TypeAlias = AR_T_alias | npt.NDArray[np.str_]
+
+AR_U: npt.NDArray[np.str_]
+AR_S: npt.NDArray[np.bytes_]
+AR_T: AR_T_alias
+
+assert_type(np.char.equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.char.equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.char.equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.not_equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.char.not_equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.char.not_equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.greater_equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.char.greater_equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.char.greater_equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.less_equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.char.less_equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.char.less_equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.greater(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.char.greater(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.char.greater(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.less(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.char.less(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.char.less(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.multiply(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.char.multiply(AR_S, [5, 4, 3]), npt.NDArray[np.bytes_])
+assert_type(np.char.multiply(AR_T, 5), AR_T_alias)
+
+assert_type(np.char.mod(AR_U, "test"), npt.NDArray[np.str_])
+assert_type(np.char.mod(AR_S, "test"), npt.NDArray[np.bytes_])
+assert_type(np.char.mod(AR_T, "test"), AR_T_alias)
+
+assert_type(np.char.capitalize(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.capitalize(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.char.capitalize(AR_T), AR_T_alias)
+
+assert_type(np.char.center(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.char.center(AR_S, [2, 3, 4], b"a"), npt.NDArray[np.bytes_])
+assert_type(np.char.center(AR_T, 5), AR_T_alias)
+
+assert_type(np.char.encode(AR_U), npt.NDArray[np.bytes_])
+assert_type(np.char.encode(AR_T), npt.NDArray[np.bytes_])
+assert_type(np.char.decode(AR_S), npt.NDArray[np.str_])
+
+assert_type(np.char.expandtabs(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.expandtabs(AR_S, tabsize=4), npt.NDArray[np.bytes_])
+assert_type(np.char.expandtabs(AR_T), AR_T_alias)
+
+assert_type(np.char.join(AR_U, "_"), npt.NDArray[np.str_])
+assert_type(np.char.join(AR_S, [b"_", b""]), npt.NDArray[np.bytes_])
+assert_type(np.char.join(AR_T, "_"), AR_TU_alias)
+
+assert_type(np.char.ljust(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.char.ljust(AR_S, [4, 3, 1], fillchar=[b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.char.ljust(AR_S, [4, 3, 1], fillchar="a"), npt.NDArray[np.bytes_])
+assert_type(np.char.ljust(AR_T, 5), AR_T_alias)
+assert_type(np.char.ljust(AR_T, [4, 2, 1], fillchar=["a", "b", "c"]), AR_TU_alias)
+
+assert_type(np.char.rjust(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.char.rjust(AR_S, [4, 3, 1], fillchar=[b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.char.rjust(AR_T, 5), AR_T_alias)
+assert_type(np.char.rjust(AR_T, [4, 2, 1], fillchar=["a", "b", "c"]), AR_TU_alias)
+
+assert_type(np.char.lstrip(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.lstrip(AR_S, b"_"), npt.NDArray[np.bytes_])
+assert_type(np.char.lstrip(AR_T), AR_T_alias)
+assert_type(np.char.lstrip(AR_T, "_"), AR_TU_alias)
+
+assert_type(np.char.rstrip(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.rstrip(AR_S, b"_"), npt.NDArray[np.bytes_])
+assert_type(np.char.rstrip(AR_T), AR_T_alias)
+assert_type(np.char.rstrip(AR_T, "_"), AR_TU_alias)
+
+assert_type(np.char.strip(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.strip(AR_S, b"_"), npt.NDArray[np.bytes_])
+assert_type(np.char.strip(AR_T), AR_T_alias)
+assert_type(np.char.strip(AR_T, "_"), AR_TU_alias)
+
+assert_type(np.char.count(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.char.count(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.char.count(AR_T, AR_T, start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.char.count(AR_T, ["a", "b", "c"], end=9), npt.NDArray[np.int_])
+
+assert_type(np.char.partition(AR_U, "\n"), npt.NDArray[np.str_])
+assert_type(np.char.partition(AR_S, [b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.char.partition(AR_T, "\n"), AR_TU_alias)
+
+assert_type(np.char.rpartition(AR_U, "\n"), npt.NDArray[np.str_])
+assert_type(np.char.rpartition(AR_S, [b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.char.rpartition(AR_T, "\n"), AR_TU_alias)
+
+assert_type(np.char.replace(AR_U, "_", "-"), npt.NDArray[np.str_])
+assert_type(np.char.replace(AR_S, [b"_", b""], [b"a", b"b"]), npt.NDArray[np.bytes_])
+assert_type(np.char.replace(AR_T, "_", "_"), AR_TU_alias)
+
+assert_type(np.char.split(AR_U, "_"), npt.NDArray[np.object_])
+assert_type(np.char.split(AR_S, maxsplit=[1, 2, 3]), npt.NDArray[np.object_])
+assert_type(np.char.split(AR_T, "_"), npt.NDArray[np.object_])
+
+assert_type(np.char.rsplit(AR_U, "_"), npt.NDArray[np.object_])
+assert_type(np.char.rsplit(AR_S, maxsplit=[1, 2, 3]), npt.NDArray[np.object_])
+assert_type(np.char.rsplit(AR_T, "_"), npt.NDArray[np.object_])
+
+assert_type(np.char.splitlines(AR_U), npt.NDArray[np.object_])
+assert_type(np.char.splitlines(AR_S, keepends=[True, True, False]), npt.NDArray[np.object_])
+assert_type(np.char.splitlines(AR_T), npt.NDArray[np.object_])
+
+assert_type(np.char.lower(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.lower(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.char.lower(AR_T), AR_T_alias)
+
+assert_type(np.char.upper(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.upper(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.char.upper(AR_T), AR_T_alias)
+
+assert_type(np.char.swapcase(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.swapcase(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.char.swapcase(AR_T), AR_T_alias)
+
+assert_type(np.char.title(AR_U), npt.NDArray[np.str_])
+assert_type(np.char.title(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.char.title(AR_T), AR_T_alias)
+
+assert_type(np.char.zfill(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.char.zfill(AR_S, [2, 3, 4]), npt.NDArray[np.bytes_])
+assert_type(np.char.zfill(AR_T, 5), AR_T_alias)
+
+assert_type(np.char.endswith(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+assert_type(np.char.endswith(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.bool])
+assert_type(np.char.endswith(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+
+assert_type(np.char.startswith(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+assert_type(np.char.startswith(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.bool])
+assert_type(np.char.startswith(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+
+assert_type(np.char.find(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.char.find(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.char.find(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.char.rfind(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.char.rfind(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.char.rfind(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.char.index(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.char.index(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.char.index(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.char.rindex(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.char.rindex(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.char.rindex(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.char.isalpha(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isalpha(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.isalpha(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.isalnum(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isalnum(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.isalnum(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.isdecimal(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isdecimal(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.isdigit(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isdigit(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.isdigit(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.islower(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.islower(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.islower(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.isnumeric(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isnumeric(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.isspace(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isspace(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.isspace(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.istitle(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.istitle(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.istitle(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.isupper(AR_U), npt.NDArray[np.bool])
+assert_type(np.char.isupper(AR_S), npt.NDArray[np.bool])
+assert_type(np.char.isupper(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.char.str_len(AR_U), npt.NDArray[np.int_])
+assert_type(np.char.str_len(AR_S), npt.NDArray[np.int_])
+assert_type(np.char.str_len(AR_T), npt.NDArray[np.int_])
+
+assert_type(np.char.translate(AR_U, ""), npt.NDArray[np.str_])
+assert_type(np.char.translate(AR_S, ""), npt.NDArray[np.bytes_])
+assert_type(np.char.translate(AR_T, ""), AR_T_alias)
+
+assert_type(np.char.array(AR_U), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+assert_type(np.char.array(AR_S, order="K"), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.array("bob", copy=True), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+assert_type(np.char.array(b"bob", itemsize=5), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.array(1, unicode=False), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.array(1, unicode=True), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+assert_type(np.char.array(1), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]] | np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.array(AR_U, unicode=False), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.array(AR_S, unicode=True), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+
+assert_type(np.char.asarray(AR_U), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+assert_type(np.char.asarray(AR_S, order="K"), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.asarray("bob"), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+assert_type(np.char.asarray(b"bob", itemsize=5), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.asarray(1, unicode=False), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.asarray(1, unicode=True), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
+assert_type(np.char.asarray(1), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]] | np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.asarray(AR_U, unicode=False), np.char.chararray[np_t._AnyShape, np.dtype[np.bytes_]])
+assert_type(np.char.asarray(AR_S, unicode=True), np.char.chararray[np_t._AnyShape, np.dtype[np.str_]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/chararray.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/chararray.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..a50318c467180a8ba1d2f5f1c08f9140de1cb2ff
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/chararray.pyi
@@ -0,0 +1,138 @@
+from typing import Any, TypeAlias, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+_BytesCharArray: TypeAlias = np.char.chararray[tuple[Any, ...], np.dtype[np.bytes_]]
+_StrCharArray: TypeAlias = np.char.chararray[tuple[Any, ...], np.dtype[np.str_]]
+
+AR_U: _StrCharArray
+AR_S: _BytesCharArray
+
+assert_type(AR_U == AR_U, npt.NDArray[np.bool])
+assert_type(AR_S == AR_S, npt.NDArray[np.bool])
+
+assert_type(AR_U != AR_U, npt.NDArray[np.bool])
+assert_type(AR_S != AR_S, npt.NDArray[np.bool])
+
+assert_type(AR_U >= AR_U, npt.NDArray[np.bool])
+assert_type(AR_S >= AR_S, npt.NDArray[np.bool])
+
+assert_type(AR_U <= AR_U, npt.NDArray[np.bool])
+assert_type(AR_S <= AR_S, npt.NDArray[np.bool])
+
+assert_type(AR_U > AR_U, npt.NDArray[np.bool])
+assert_type(AR_S > AR_S, npt.NDArray[np.bool])
+
+assert_type(AR_U < AR_U, npt.NDArray[np.bool])
+assert_type(AR_S < AR_S, npt.NDArray[np.bool])
+
+assert_type(AR_U * 5, _StrCharArray)
+assert_type(AR_S * [5], _BytesCharArray)
+
+assert_type(AR_U % "test", _StrCharArray)
+assert_type(AR_S % b"test", _BytesCharArray)
+
+assert_type(AR_U.capitalize(), _StrCharArray)
+assert_type(AR_S.capitalize(), _BytesCharArray)
+
+assert_type(AR_U.center(5), _StrCharArray)
+assert_type(AR_S.center([2, 3, 4], b"a"), _BytesCharArray)
+
+assert_type(AR_U.encode(), _BytesCharArray)
+assert_type(AR_S.decode(), _StrCharArray)
+
+assert_type(AR_U.expandtabs(), _StrCharArray)
+assert_type(AR_S.expandtabs(tabsize=4), _BytesCharArray)
+
+assert_type(AR_U.join("_"), _StrCharArray)
+assert_type(AR_S.join([b"_", b""]), _BytesCharArray)
+
+assert_type(AR_U.ljust(5), _StrCharArray)
+assert_type(AR_S.ljust([4, 3, 1], fillchar=[b"a", b"b", b"c"]), _BytesCharArray)
+assert_type(AR_S.ljust([4, 3, 1], fillchar="a"), _BytesCharArray)
+assert_type(AR_U.rjust(5), _StrCharArray)
+assert_type(AR_S.rjust([4, 3, 1], fillchar=[b"a", b"b", b"c"]), _BytesCharArray)
+
+assert_type(AR_U.lstrip(), _StrCharArray)
+assert_type(AR_S.lstrip(chars=b"_"), _BytesCharArray)
+assert_type(AR_U.rstrip(), _StrCharArray)
+assert_type(AR_S.rstrip(chars=b"_"), _BytesCharArray)
+assert_type(AR_U.strip(), _StrCharArray)
+assert_type(AR_S.strip(chars=b"_"), _BytesCharArray)
+
+assert_type(AR_U.partition("\n"), _StrCharArray)
+assert_type(AR_S.partition([b"a", b"b", b"c"]), _BytesCharArray)
+assert_type(AR_U.rpartition("\n"), _StrCharArray)
+assert_type(AR_S.rpartition([b"a", b"b", b"c"]), _BytesCharArray)
+
+assert_type(AR_U.replace("_", "-"), _StrCharArray)
+assert_type(AR_S.replace([b"_", b""], [b"a", b"b"]), _BytesCharArray)
+
+assert_type(AR_U.split("_"), npt.NDArray[np.object_])
+assert_type(AR_S.split(maxsplit=[1, 2, 3]), npt.NDArray[np.object_])
+assert_type(AR_U.rsplit("_"), npt.NDArray[np.object_])
+assert_type(AR_S.rsplit(maxsplit=[1, 2, 3]), npt.NDArray[np.object_])
+
+assert_type(AR_U.splitlines(), npt.NDArray[np.object_])
+assert_type(AR_S.splitlines(keepends=[True, True, False]), npt.NDArray[np.object_])
+
+assert_type(AR_U.swapcase(), _StrCharArray)
+assert_type(AR_S.swapcase(), _BytesCharArray)
+
+assert_type(AR_U.title(), _StrCharArray)
+assert_type(AR_S.title(), _BytesCharArray)
+
+assert_type(AR_U.upper(), _StrCharArray)
+assert_type(AR_S.upper(), _BytesCharArray)
+
+assert_type(AR_U.zfill(5), _StrCharArray)
+assert_type(AR_S.zfill([2, 3, 4]), _BytesCharArray)
+
+assert_type(AR_U.count("a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(AR_S.count([b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+
+assert_type(AR_U.endswith("a", start=[1, 2, 3]), npt.NDArray[np.bool])
+assert_type(AR_S.endswith([b"a", b"b", b"c"], end=9), npt.NDArray[np.bool])
+assert_type(AR_U.startswith("a", start=[1, 2, 3]), npt.NDArray[np.bool])
+assert_type(AR_S.startswith([b"a", b"b", b"c"], end=9), npt.NDArray[np.bool])
+
+assert_type(AR_U.find("a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(AR_S.find([b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(AR_U.rfind("a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(AR_S.rfind([b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+
+assert_type(AR_U.index("a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(AR_S.index([b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(AR_U.rindex("a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(AR_S.rindex([b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+
+assert_type(AR_U.isalpha(), npt.NDArray[np.bool])
+assert_type(AR_S.isalpha(), npt.NDArray[np.bool])
+
+assert_type(AR_U.isalnum(), npt.NDArray[np.bool])
+assert_type(AR_S.isalnum(), npt.NDArray[np.bool])
+
+assert_type(AR_U.isdecimal(), npt.NDArray[np.bool])
+assert_type(AR_S.isdecimal(), npt.NDArray[np.bool])
+
+assert_type(AR_U.isdigit(), npt.NDArray[np.bool])
+assert_type(AR_S.isdigit(), npt.NDArray[np.bool])
+
+assert_type(AR_U.islower(), npt.NDArray[np.bool])
+assert_type(AR_S.islower(), npt.NDArray[np.bool])
+
+assert_type(AR_U.isnumeric(), npt.NDArray[np.bool])
+assert_type(AR_S.isnumeric(), npt.NDArray[np.bool])
+
+assert_type(AR_U.isspace(), npt.NDArray[np.bool])
+assert_type(AR_S.isspace(), npt.NDArray[np.bool])
+
+assert_type(AR_U.istitle(), npt.NDArray[np.bool])
+assert_type(AR_S.istitle(), npt.NDArray[np.bool])
+
+assert_type(AR_U.isupper(), npt.NDArray[np.bool])
+assert_type(AR_S.isupper(), npt.NDArray[np.bool])
+
+assert_type(AR_U.__array_finalize__(object()), None)
+assert_type(AR_S.__array_finalize__(object()), None)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/comparisons.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/comparisons.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..2c90dbf006d8aa4ff8a97c0a2efcddf371f4120f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/comparisons.pyi
@@ -0,0 +1,264 @@
+import decimal
+import fractions
+from typing import assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+c16 = np.complex128()
+f8 = np.float64()
+i8 = np.int64()
+u8 = np.uint64()
+
+c8 = np.complex64()
+f4 = np.float32()
+i4 = np.int32()
+u4 = np.uint32()
+
+dt = np.datetime64(0, "D")
+td = np.timedelta64(0, "D")
+
+b_ = np.bool()
+
+b = False
+c = complex()
+f = 0.0
+i = 0
+
+AR = np.array([0], dtype=np.int64)
+AR.setflags(write=False)
+
+SEQ = (0, 1, 2, 3, 4)
+
+# object-like comparisons
+
+assert_type(i8 > fractions.Fraction(1, 5), np.bool)
+assert_type(i8 > [fractions.Fraction(1, 5)], npt.NDArray[np.bool])
+assert_type(i8 > decimal.Decimal("1.5"), np.bool)
+assert_type(i8 > [decimal.Decimal("1.5")], npt.NDArray[np.bool])
+
+# Time structures
+
+assert_type(dt > dt, np.bool)
+
+assert_type(td > td, np.bool)
+assert_type(td > i, np.bool)
+assert_type(td > i4, np.bool)
+assert_type(td > i8, np.bool)
+
+assert_type(td > AR, npt.NDArray[np.bool])
+assert_type(td > SEQ, npt.NDArray[np.bool])
+assert_type(AR > SEQ, npt.NDArray[np.bool])
+assert_type(AR > td, npt.NDArray[np.bool])
+assert_type(SEQ > td, npt.NDArray[np.bool])
+assert_type(SEQ > AR, npt.NDArray[np.bool])
+
+# boolean
+
+assert_type(b_ > b, np.bool)
+assert_type(b_ > b_, np.bool)
+assert_type(b_ > i, np.bool)
+assert_type(b_ > i8, np.bool)
+assert_type(b_ > i4, np.bool)
+assert_type(b_ > u8, np.bool)
+assert_type(b_ > u4, np.bool)
+assert_type(b_ > f, np.bool)
+assert_type(b_ > f8, np.bool)
+assert_type(b_ > f4, np.bool)
+assert_type(b_ > c, np.bool)
+assert_type(b_ > c16, np.bool)
+assert_type(b_ > c8, np.bool)
+assert_type(b_ > AR, npt.NDArray[np.bool])
+assert_type(b_ > SEQ, npt.NDArray[np.bool])
+
+# Complex
+
+assert_type(c16 > c16, np.bool)
+assert_type(c16 > f8, np.bool)
+assert_type(c16 > i8, np.bool)
+assert_type(c16 > c8, np.bool)
+assert_type(c16 > f4, np.bool)
+assert_type(c16 > i4, np.bool)
+assert_type(c16 > b_, np.bool)
+assert_type(c16 > b, np.bool)
+assert_type(c16 > c, np.bool)
+assert_type(c16 > f, np.bool)
+assert_type(c16 > i, np.bool)
+assert_type(c16 > AR, npt.NDArray[np.bool])
+assert_type(c16 > SEQ, npt.NDArray[np.bool])
+
+assert_type(c16 > c16, np.bool)
+assert_type(f8 > c16, np.bool)
+assert_type(i8 > c16, np.bool)
+assert_type(c8 > c16, np.bool)
+assert_type(f4 > c16, np.bool)
+assert_type(i4 > c16, np.bool)
+assert_type(b_ > c16, np.bool)
+assert_type(b > c16, np.bool)
+assert_type(c > c16, np.bool)
+assert_type(f > c16, np.bool)
+assert_type(i > c16, np.bool)
+assert_type(AR > c16, npt.NDArray[np.bool])
+assert_type(SEQ > c16, npt.NDArray[np.bool])
+
+assert_type(c8 > c16, np.bool)
+assert_type(c8 > f8, np.bool)
+assert_type(c8 > i8, np.bool)
+assert_type(c8 > c8, np.bool)
+assert_type(c8 > f4, np.bool)
+assert_type(c8 > i4, np.bool)
+assert_type(c8 > b_, np.bool)
+assert_type(c8 > b, np.bool)
+assert_type(c8 > c, np.bool)
+assert_type(c8 > f, np.bool)
+assert_type(c8 > i, np.bool)
+assert_type(c8 > AR, npt.NDArray[np.bool])
+assert_type(c8 > SEQ, npt.NDArray[np.bool])
+
+assert_type(c16 > c8, np.bool)
+assert_type(f8 > c8, np.bool)
+assert_type(i8 > c8, np.bool)
+assert_type(c8 > c8, np.bool)
+assert_type(f4 > c8, np.bool)
+assert_type(i4 > c8, np.bool)
+assert_type(b_ > c8, np.bool)
+assert_type(b > c8, np.bool)
+assert_type(c > c8, np.bool)
+assert_type(f > c8, np.bool)
+assert_type(i > c8, np.bool)
+assert_type(AR > c8, npt.NDArray[np.bool])
+assert_type(SEQ > c8, npt.NDArray[np.bool])
+
+# Float
+
+assert_type(f8 > f8, np.bool)
+assert_type(f8 > i8, np.bool)
+assert_type(f8 > f4, np.bool)
+assert_type(f8 > i4, np.bool)
+assert_type(f8 > b_, np.bool)
+assert_type(f8 > b, np.bool)
+assert_type(f8 > c, np.bool)
+assert_type(f8 > f, np.bool)
+assert_type(f8 > i, np.bool)
+assert_type(f8 > AR, npt.NDArray[np.bool])
+assert_type(f8 > SEQ, npt.NDArray[np.bool])
+
+assert_type(f8 > f8, np.bool)
+assert_type(i8 > f8, np.bool)
+assert_type(f4 > f8, np.bool)
+assert_type(i4 > f8, np.bool)
+assert_type(b_ > f8, np.bool)
+assert_type(b > f8, np.bool)
+assert_type(c > f8, np.bool)
+assert_type(f > f8, np.bool)
+assert_type(i > f8, np.bool)
+assert_type(AR > f8, npt.NDArray[np.bool])
+assert_type(SEQ > f8, npt.NDArray[np.bool])
+
+assert_type(f4 > f8, np.bool)
+assert_type(f4 > i8, np.bool)
+assert_type(f4 > f4, np.bool)
+assert_type(f4 > i4, np.bool)
+assert_type(f4 > b_, np.bool)
+assert_type(f4 > b, np.bool)
+assert_type(f4 > c, np.bool)
+assert_type(f4 > f, np.bool)
+assert_type(f4 > i, np.bool)
+assert_type(f4 > AR, npt.NDArray[np.bool])
+assert_type(f4 > SEQ, npt.NDArray[np.bool])
+
+assert_type(f8 > f4, np.bool)
+assert_type(i8 > f4, np.bool)
+assert_type(f4 > f4, np.bool)
+assert_type(i4 > f4, np.bool)
+assert_type(b_ > f4, np.bool)
+assert_type(b > f4, np.bool)
+assert_type(c > f4, np.bool)
+assert_type(f > f4, np.bool)
+assert_type(i > f4, np.bool)
+assert_type(AR > f4, npt.NDArray[np.bool])
+assert_type(SEQ > f4, npt.NDArray[np.bool])
+
+# Int
+
+assert_type(i8 > i8, np.bool)
+assert_type(i8 > u8, np.bool)
+assert_type(i8 > i4, np.bool)
+assert_type(i8 > u4, np.bool)
+assert_type(i8 > b_, np.bool)
+assert_type(i8 > b, np.bool)
+assert_type(i8 > c, np.bool)
+assert_type(i8 > f, np.bool)
+assert_type(i8 > i, np.bool)
+assert_type(i8 > AR, npt.NDArray[np.bool])
+assert_type(i8 > SEQ, npt.NDArray[np.bool])
+
+assert_type(u8 > u8, np.bool)
+assert_type(u8 > i4, np.bool)
+assert_type(u8 > u4, np.bool)
+assert_type(u8 > b_, np.bool)
+assert_type(u8 > b, np.bool)
+assert_type(u8 > c, np.bool)
+assert_type(u8 > f, np.bool)
+assert_type(u8 > i, np.bool)
+assert_type(u8 > AR, npt.NDArray[np.bool])
+assert_type(u8 > SEQ, npt.NDArray[np.bool])
+
+assert_type(i8 > i8, np.bool)
+assert_type(u8 > i8, np.bool)
+assert_type(i4 > i8, np.bool)
+assert_type(u4 > i8, np.bool)
+assert_type(b_ > i8, np.bool)
+assert_type(b > i8, np.bool)
+assert_type(c > i8, np.bool)
+assert_type(f > i8, np.bool)
+assert_type(i > i8, np.bool)
+assert_type(AR > i8, npt.NDArray[np.bool])
+assert_type(SEQ > i8, npt.NDArray[np.bool])
+
+assert_type(u8 > u8, np.bool)
+assert_type(i4 > u8, np.bool)
+assert_type(u4 > u8, np.bool)
+assert_type(b_ > u8, np.bool)
+assert_type(b > u8, np.bool)
+assert_type(c > u8, np.bool)
+assert_type(f > u8, np.bool)
+assert_type(i > u8, np.bool)
+assert_type(AR > u8, npt.NDArray[np.bool])
+assert_type(SEQ > u8, npt.NDArray[np.bool])
+
+assert_type(i4 > i8, np.bool)
+assert_type(i4 > i4, np.bool)
+assert_type(i4 > i, np.bool)
+assert_type(i4 > b_, np.bool)
+assert_type(i4 > b, np.bool)
+assert_type(i4 > AR, npt.NDArray[np.bool])
+assert_type(i4 > SEQ, npt.NDArray[np.bool])
+
+assert_type(u4 > i8, np.bool)
+assert_type(u4 > i4, np.bool)
+assert_type(u4 > u8, np.bool)
+assert_type(u4 > u4, np.bool)
+assert_type(u4 > i, np.bool)
+assert_type(u4 > b_, np.bool)
+assert_type(u4 > b, np.bool)
+assert_type(u4 > AR, npt.NDArray[np.bool])
+assert_type(u4 > SEQ, npt.NDArray[np.bool])
+
+assert_type(i8 > i4, np.bool)
+assert_type(i4 > i4, np.bool)
+assert_type(i > i4, np.bool)
+assert_type(b_ > i4, np.bool)
+assert_type(b > i4, np.bool)
+assert_type(AR > i4, npt.NDArray[np.bool])
+assert_type(SEQ > i4, npt.NDArray[np.bool])
+
+assert_type(i8 > u4, np.bool)
+assert_type(i4 > u4, np.bool)
+assert_type(u8 > u4, np.bool)
+assert_type(u4 > u4, np.bool)
+assert_type(b_ > u4, np.bool)
+assert_type(b > u4, np.bool)
+assert_type(i > u4, np.bool)
+assert_type(AR > u4, npt.NDArray[np.bool])
+assert_type(SEQ > u4, npt.NDArray[np.bool])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/constants.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/constants.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..54f7723d8e127d8357a146b9f1de0b7fcf02b45d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/constants.pyi
@@ -0,0 +1,14 @@
+from typing import Literal, assert_type
+
+import numpy as np
+
+assert_type(np.e, float)
+assert_type(np.euler_gamma, float)
+assert_type(np.inf, float)
+assert_type(np.nan, float)
+assert_type(np.pi, float)
+
+assert_type(np.little_endian, bool)
+
+assert_type(np.True_, np.bool[Literal[True]])
+assert_type(np.False_, np.bool[Literal[False]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ctypeslib.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ctypeslib.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..b197062ee68cd1321eed5e9b08dd0f1242251159
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ctypeslib.pyi
@@ -0,0 +1,81 @@
+import ctypes as ct
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy import ctypeslib
+
+AR_bool: npt.NDArray[np.bool]
+AR_ubyte: npt.NDArray[np.ubyte]
+AR_ushort: npt.NDArray[np.ushort]
+AR_uintc: npt.NDArray[np.uintc]
+AR_ulong: npt.NDArray[np.ulong]
+AR_ulonglong: npt.NDArray[np.ulonglong]
+AR_byte: npt.NDArray[np.byte]
+AR_short: npt.NDArray[np.short]
+AR_intc: npt.NDArray[np.intc]
+AR_long: npt.NDArray[np.long]
+AR_longlong: npt.NDArray[np.longlong]
+AR_single: npt.NDArray[np.single]
+AR_double: npt.NDArray[np.double]
+AR_longdouble: npt.NDArray[np.longdouble]
+AR_void: npt.NDArray[np.void]
+
+pointer: ct._Pointer[Any]
+
+assert_type(np.ctypeslib.c_intp(), ctypeslib.c_intp)
+
+assert_type(np.ctypeslib.ndpointer(), type[ctypeslib._ndptr[None]])
+assert_type(np.ctypeslib.ndpointer(dtype=np.float64), type[ctypeslib._ndptr[np.dtype[np.float64]]])
+assert_type(np.ctypeslib.ndpointer(dtype=float), type[ctypeslib._ndptr[np.dtype]])
+assert_type(np.ctypeslib.ndpointer(shape=(10, 3)), type[ctypeslib._ndptr[None]])
+assert_type(np.ctypeslib.ndpointer(np.int64, shape=(10, 3)), type[ctypeslib._concrete_ndptr[np.dtype[np.int64]]])
+assert_type(np.ctypeslib.ndpointer(int, shape=(1,)), type[np.ctypeslib._concrete_ndptr[np.dtype]])
+
+assert_type(np.ctypeslib.as_ctypes_type(np.bool), type[ct.c_bool])
+assert_type(np.ctypeslib.as_ctypes_type(np.ubyte), type[ct.c_ubyte])
+assert_type(np.ctypeslib.as_ctypes_type(np.ushort), type[ct.c_ushort])
+assert_type(np.ctypeslib.as_ctypes_type(np.uintc), type[ct.c_uint])
+assert_type(np.ctypeslib.as_ctypes_type(np.byte), type[ct.c_byte])
+assert_type(np.ctypeslib.as_ctypes_type(np.short), type[ct.c_short])
+assert_type(np.ctypeslib.as_ctypes_type(np.intc), type[ct.c_int])
+assert_type(np.ctypeslib.as_ctypes_type(np.single), type[ct.c_float])
+assert_type(np.ctypeslib.as_ctypes_type(np.double), type[ct.c_double])
+assert_type(np.ctypeslib.as_ctypes_type(ct.c_double), type[ct.c_double])
+assert_type(np.ctypeslib.as_ctypes_type("q"), type[ct.c_longlong])
+assert_type(np.ctypeslib.as_ctypes_type([("i8", np.int64), ("f8", np.float64)]), type[Any])
+assert_type(np.ctypeslib.as_ctypes_type("i8"), type[Any])
+assert_type(np.ctypeslib.as_ctypes_type("f8"), type[Any])
+
+assert_type(np.ctypeslib.as_ctypes(AR_bool.take(0)), ct.c_bool)
+assert_type(np.ctypeslib.as_ctypes(AR_ubyte.take(0)), ct.c_ubyte)
+assert_type(np.ctypeslib.as_ctypes(AR_ushort.take(0)), ct.c_ushort)
+assert_type(np.ctypeslib.as_ctypes(AR_uintc.take(0)), ct.c_uint)
+
+assert_type(np.ctypeslib.as_ctypes(AR_byte.take(0)), ct.c_byte)
+assert_type(np.ctypeslib.as_ctypes(AR_short.take(0)), ct.c_short)
+assert_type(np.ctypeslib.as_ctypes(AR_intc.take(0)), ct.c_int)
+assert_type(np.ctypeslib.as_ctypes(AR_single.take(0)), ct.c_float)
+assert_type(np.ctypeslib.as_ctypes(AR_double.take(0)), ct.c_double)
+assert_type(np.ctypeslib.as_ctypes(AR_void.take(0)), Any)
+assert_type(np.ctypeslib.as_ctypes(AR_bool), ct.Array[ct.c_bool])
+assert_type(np.ctypeslib.as_ctypes(AR_ubyte), ct.Array[ct.c_ubyte])
+assert_type(np.ctypeslib.as_ctypes(AR_ushort), ct.Array[ct.c_ushort])
+assert_type(np.ctypeslib.as_ctypes(AR_uintc), ct.Array[ct.c_uint])
+assert_type(np.ctypeslib.as_ctypes(AR_byte), ct.Array[ct.c_byte])
+assert_type(np.ctypeslib.as_ctypes(AR_short), ct.Array[ct.c_short])
+assert_type(np.ctypeslib.as_ctypes(AR_intc), ct.Array[ct.c_int])
+assert_type(np.ctypeslib.as_ctypes(AR_single), ct.Array[ct.c_float])
+assert_type(np.ctypeslib.as_ctypes(AR_double), ct.Array[ct.c_double])
+assert_type(np.ctypeslib.as_ctypes(AR_void), ct.Array[Any])
+
+assert_type(np.ctypeslib.as_array(AR_ubyte), npt.NDArray[np.ubyte])
+assert_type(np.ctypeslib.as_array(1), npt.NDArray[Any])
+assert_type(np.ctypeslib.as_array(pointer), npt.NDArray[Any])
+
+assert_type(np.ctypeslib.as_ctypes_type(np.long), type[ct.c_long])
+assert_type(np.ctypeslib.as_ctypes_type(np.ulong), type[ct.c_ulong])
+assert_type(np.ctypeslib.as_ctypes(AR_ulong), ct.Array[ct.c_ulong])
+assert_type(np.ctypeslib.as_ctypes(AR_long), ct.Array[ct.c_long])
+assert_type(np.ctypeslib.as_ctypes(AR_long.take(0)), ct.c_long)
+assert_type(np.ctypeslib.as_ctypes(AR_ulong.take(0)), ct.c_ulong)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/datasource.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/datasource.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..9938ed418051c50baa2c85486c253129b90c10a2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/datasource.pyi
@@ -0,0 +1,23 @@
+from pathlib import Path
+from typing import IO, Any, assert_type
+
+import numpy as np
+
+path1: Path
+path2: str
+
+d1 = np.lib.npyio.DataSource(path1)
+d2 = np.lib.npyio.DataSource(path2)
+d3 = np.lib.npyio.DataSource(None)
+
+assert_type(d1.abspath("..."), str)
+assert_type(d2.abspath("..."), str)
+assert_type(d3.abspath("..."), str)
+
+assert_type(d1.exists("..."), bool)
+assert_type(d2.exists("..."), bool)
+assert_type(d3.exists("..."), bool)
+
+assert_type(d1.open("...", "r"), IO[Any])
+assert_type(d2.open("...", encoding="utf8"), IO[Any])
+assert_type(d3.open("...", newline="/n"), IO[Any])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/dtype.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/dtype.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..db9532f37dd64db73a96465c61d5361e9afaabd7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/dtype.pyi
@@ -0,0 +1,132 @@
+import ctypes as ct
+import datetime as dt
+from decimal import Decimal
+from fractions import Fraction
+from typing import Any, Literal, LiteralString, TypeAlias, assert_type
+
+import numpy as np
+from numpy.dtypes import StringDType
+
+# a combination of likely `object` dtype-like candidates (no `_co`)
+_PyObjectLike: TypeAlias = Decimal | Fraction | dt.datetime | dt.timedelta
+
+dtype_U: np.dtype[np.str_]
+dtype_V: np.dtype[np.void]
+dtype_i8: np.dtype[np.int64]
+
+py_object: type[_PyObjectLike]
+py_character: type[str | bytes]
+
+ct_floating: type[ct.c_float | ct.c_double | ct.c_longdouble]
+ct_number: type[ct.c_uint8 | ct.c_float]
+ct_generic: type[ct.c_bool | ct.c_char]
+
+cs_integer: Literal["u1", "<i2", "L"]
+cs_number: Literal["=L", "i", "c16"]
+cs_flex: Literal[">V", "S"]
+cs_generic: Literal["H", "U", "h", "|M8[Y]", "?"]
+
+dt_inexact: np.dtype[np.inexact]
+dt_string: StringDType
+
+assert_type(np.dtype(np.float64), np.dtype[np.float64])
+assert_type(np.dtype(np.float64, metadata={"test": "test"}), np.dtype[np.float64])
+assert_type(np.dtype(np.int64), np.dtype[np.int64])
+
+# String aliases
+assert_type(np.dtype("float64"), np.dtype[np.float64])
+assert_type(np.dtype("float32"), np.dtype[np.float32])
+assert_type(np.dtype("int64"), np.dtype[np.int64])
+assert_type(np.dtype("int32"), np.dtype[np.int32])
+assert_type(np.dtype("bool"), np.dtype[np.bool])
+assert_type(np.dtype("bytes"), np.dtype[np.bytes_])
+assert_type(np.dtype("str"), np.dtype[np.str_])
+
+# Python types
+assert_type(np.dtype(bool), np.dtype[np.bool])
+assert_type(np.dtype(int), np.dtype[np.int_ | np.bool])
+assert_type(np.dtype(float), np.dtype[np.float64 | np.int_ | np.bool])
+assert_type(np.dtype(complex), np.dtype[np.complex128 | np.float64 | np.int_ | np.bool])
+assert_type(np.dtype(py_object), np.dtype[np.object_])
+assert_type(np.dtype(str), np.dtype[np.str_])
+assert_type(np.dtype(bytes), np.dtype[np.bytes_])
+assert_type(np.dtype(memoryview), np.dtype[np.void])
+assert_type(np.dtype(py_character), np.dtype[np.character])
+
+# object types
+assert_type(np.dtype(list), np.dtype[np.object_])
+assert_type(np.dtype(dt.datetime), np.dtype[np.object_])
+assert_type(np.dtype(dt.timedelta), np.dtype[np.object_])
+assert_type(np.dtype(Decimal), np.dtype[np.object_])
+assert_type(np.dtype(Fraction), np.dtype[np.object_])
+
+# char-codes
+assert_type(np.dtype("?"), np.dtype[np.bool])
+assert_type(np.dtype("|b1"), np.dtype[np.bool])
+assert_type(np.dtype("u1"), np.dtype[np.uint8])
+assert_type(np.dtype("l"), np.dtype[np.long])
+assert_type(np.dtype("longlong"), np.dtype[np.longlong])
+assert_type(np.dtype(">g"), np.dtype[np.longdouble])
+assert_type(np.dtype(cs_integer), np.dtype[np.integer])
+
+# ctypes
+assert_type(np.dtype(ct.c_double), np.dtype[np.float64])  # see numpy/numpy#29155
+assert_type(np.dtype(ct.c_longlong), np.dtype[np.longlong])
+assert_type(np.dtype(ct.c_uint32), np.dtype[np.uint32])
+assert_type(np.dtype(ct.c_bool), np.dtype[np.bool])
+assert_type(np.dtype(ct.c_char), np.dtype[np.bytes_])
+assert_type(np.dtype(ct.py_object), np.dtype[np.object_])
+
+# Special case for None
+assert_type(np.dtype(None), np.dtype[np.float64])
+
+# dtypes of dtypes
+assert_type(np.dtype(np.dtype(np.float64)), np.dtype[np.float64])
+assert_type(np.dtype(dt_inexact), np.dtype[np.inexact])
+
+# Parameterized dtypes
+assert_type(np.dtype("S8"), np.dtype)
+
+# Void
+assert_type(np.dtype(("U", 10)), np.dtype[np.void])
+assert_type(np.dtype({"formats": (int, "u8"), "names": ("n", "B")}), np.dtype[np.void])
+
+# StringDType
+assert_type(np.dtype(dt_string), StringDType)
+assert_type(np.dtype("T"), StringDType)
+assert_type(np.dtype("=T"), StringDType)
+assert_type(np.dtype("|T"), StringDType)
+
+# Methods and attributes
+assert_type(dtype_U.base, np.dtype)
+assert_type(dtype_U.subdtype, tuple[np.dtype, tuple[Any, ...]] | None)
+assert_type(dtype_U.newbyteorder(), np.dtype[np.str_])
+assert_type(dtype_U.type, type[np.str_])
+assert_type(dtype_U.name, LiteralString)
+assert_type(dtype_U.names, tuple[str, ...] | None)
+
+assert_type(dtype_U * 0, np.dtype[np.str_])
+assert_type(dtype_U * 1, np.dtype[np.str_])
+assert_type(dtype_U * 2, np.dtype[np.str_])
+
+assert_type(dtype_i8 * 0, np.dtype[np.void])
+assert_type(dtype_i8 * 1, np.dtype[np.int64])
+assert_type(dtype_i8 * 2, np.dtype[np.void])
+
+assert_type(0 * dtype_U, np.dtype[np.str_])
+assert_type(1 * dtype_U, np.dtype[np.str_])
+assert_type(2 * dtype_U, np.dtype[np.str_])
+
+assert_type(0 * dtype_i8, np.dtype)
+assert_type(1 * dtype_i8, np.dtype)
+assert_type(2 * dtype_i8, np.dtype)
+
+assert_type(dtype_V["f0"], np.dtype)
+assert_type(dtype_V[0], np.dtype)
+assert_type(dtype_V[["f0", "f1"]], np.dtype[np.void])
+assert_type(dtype_V[["f0"]], np.dtype[np.void])
+
+class _D:
+    __numpy_dtype__: np.dtype[np.int8]
+
+assert_type(np.dtype(_D()), np.dtype[np.int8])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/einsumfunc.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/einsumfunc.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..44ae745b09884d6b1748a0fad8f9438e65a892e2
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/einsumfunc.pyi
@@ -0,0 +1,39 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_LIKE_b: list[bool]
+AR_LIKE_u: list[np.uint32]
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+AR_LIKE_c: list[complex]
+AR_LIKE_U: list[str]
+AR_o: npt.NDArray[np.object_]
+
+OUT_f: npt.NDArray[np.float64]
+
+assert_type(np.einsum("i,i->i", AR_LIKE_b, AR_LIKE_b), Any)
+assert_type(np.einsum("i,i->i", AR_o, AR_o), Any)
+assert_type(np.einsum("i,i->i", AR_LIKE_u, AR_LIKE_u), Any)
+assert_type(np.einsum("i,i->i", AR_LIKE_i, AR_LIKE_i), Any)
+assert_type(np.einsum("i,i->i", AR_LIKE_f, AR_LIKE_f), Any)
+assert_type(np.einsum("i,i->i", AR_LIKE_c, AR_LIKE_c), Any)
+assert_type(np.einsum("i,i->i", AR_LIKE_b, AR_LIKE_i), Any)
+assert_type(np.einsum("i,i,i,i->i", AR_LIKE_b, AR_LIKE_u, AR_LIKE_i, AR_LIKE_c), Any)
+
+assert_type(np.einsum("i,i->i", AR_LIKE_c, AR_LIKE_c, out=OUT_f), npt.NDArray[np.float64])
+assert_type(np.einsum("i,i->i", AR_LIKE_U, AR_LIKE_U, dtype=bool, casting="unsafe", out=OUT_f), npt.NDArray[np.float64])
+assert_type(np.einsum("i,i->i", AR_LIKE_f, AR_LIKE_f, dtype="c16"), Any)
+assert_type(np.einsum("i,i->i", AR_LIKE_U, AR_LIKE_U, dtype=bool, casting="unsafe"), Any)
+
+assert_type(np.einsum_path("i,i->i", AR_LIKE_b, AR_LIKE_b), tuple[list[Any], str])
+assert_type(np.einsum_path("i,i->i", AR_LIKE_u, AR_LIKE_u), tuple[list[Any], str])
+assert_type(np.einsum_path("i,i->i", AR_LIKE_i, AR_LIKE_i), tuple[list[Any], str])
+assert_type(np.einsum_path("i,i->i", AR_LIKE_f, AR_LIKE_f), tuple[list[Any], str])
+assert_type(np.einsum_path("i,i->i", AR_LIKE_c, AR_LIKE_c), tuple[list[Any], str])
+assert_type(np.einsum_path("i,i->i", AR_LIKE_b, AR_LIKE_i), tuple[list[Any], str])
+assert_type(np.einsum_path("i,i,i,i->i", AR_LIKE_b, AR_LIKE_u, AR_LIKE_i, AR_LIKE_c), tuple[list[Any], str])
+
+assert_type(np.einsum([[1, 1], [1, 1]], AR_LIKE_i, AR_LIKE_i), Any)
+assert_type(np.einsum_path([[1, 1], [1, 1]], AR_LIKE_i, AR_LIKE_i), tuple[list[Any], str])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/emath.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/emath.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..b0180004a3efb83a11ca40ecff717f6a9e8734d7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/emath.pyi
@@ -0,0 +1,54 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+f8: np.float64
+c16: np.complex128
+
+assert_type(np.emath.sqrt(f8), Any)
+assert_type(np.emath.sqrt(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.sqrt(c16), np.complexfloating)
+assert_type(np.emath.sqrt(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.log(f8), Any)
+assert_type(np.emath.log(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.log(c16), np.complexfloating)
+assert_type(np.emath.log(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.log10(f8), Any)
+assert_type(np.emath.log10(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.log10(c16), np.complexfloating)
+assert_type(np.emath.log10(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.log2(f8), Any)
+assert_type(np.emath.log2(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.log2(c16), np.complexfloating)
+assert_type(np.emath.log2(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.logn(f8, 2), Any)
+assert_type(np.emath.logn(AR_f8, 4), npt.NDArray[Any])
+assert_type(np.emath.logn(f8, 1j), np.complexfloating)
+assert_type(np.emath.logn(AR_c16, 1.5), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.power(f8, 2), Any)
+assert_type(np.emath.power(AR_f8, 4), npt.NDArray[Any])
+assert_type(np.emath.power(f8, 2j), np.complexfloating)
+assert_type(np.emath.power(AR_c16, 1.5), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.arccos(f8), Any)
+assert_type(np.emath.arccos(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.arccos(c16), np.complexfloating)
+assert_type(np.emath.arccos(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.arcsin(f8), Any)
+assert_type(np.emath.arcsin(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.arcsin(c16), np.complexfloating)
+assert_type(np.emath.arcsin(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.emath.arctanh(f8), Any)
+assert_type(np.emath.arctanh(AR_f8), npt.NDArray[Any])
+assert_type(np.emath.arctanh(c16), np.complexfloating)
+assert_type(np.emath.arctanh(AR_c16), npt.NDArray[np.complexfloating])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/fft.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/fft.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..b64822504fcc763ba9e0ada4dcd5677b5806bca7
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/fft.pyi
@@ -0,0 +1,37 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+AR_LIKE_f8: list[float]
+
+assert_type(np.fft.fftshift(AR_f8), npt.NDArray[np.float64])
+assert_type(np.fft.fftshift(AR_LIKE_f8, axes=0), npt.NDArray[Any])
+
+assert_type(np.fft.ifftshift(AR_f8), npt.NDArray[np.float64])
+assert_type(np.fft.ifftshift(AR_LIKE_f8, axes=0), npt.NDArray[Any])
+
+assert_type(np.fft.fftfreq(5, AR_f8), npt.NDArray[np.floating])
+assert_type(np.fft.fftfreq(np.int64(), AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.fft.fftfreq(5, AR_f8), npt.NDArray[np.floating])
+assert_type(np.fft.fftfreq(np.int64(), AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.fft.fft(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.ifft(AR_f8, axis=1), npt.NDArray[np.complex128])
+assert_type(np.fft.rfft(AR_f8, n=None), npt.NDArray[np.complex128])
+assert_type(np.fft.irfft(AR_f8, norm="ortho"), npt.NDArray[np.float64])
+assert_type(np.fft.hfft(AR_f8, n=2), npt.NDArray[np.float64])
+assert_type(np.fft.ihfft(AR_f8), npt.NDArray[np.complex128])
+
+assert_type(np.fft.fftn(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.ifftn(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.rfftn(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.irfftn(AR_f8), npt.NDArray[np.float64])
+
+assert_type(np.fft.rfft2(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.ifft2(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.fft2(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.fft.irfft2(AR_f8), npt.NDArray[np.float64])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/flatiter.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/flatiter.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..04e13b8f5506e5f090d920d9615d9b0f3d5936cc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/flatiter.pyi
@@ -0,0 +1,86 @@
+from typing import Any, TypeAlias, assert_type
+
+import numpy as np
+
+_ArrayND: TypeAlias = np.ndarray[tuple[Any, ...], np.dtypes.StrDType]
+_Array1D: TypeAlias = np.ndarray[tuple[int], np.dtypes.BytesDType]
+_Array2D: TypeAlias = np.ndarray[tuple[int, int], np.dtypes.Int8DType]
+
+_a_nd: np.flatiter[_ArrayND]
+_a_1d: np.flatiter[_Array1D]
+_a_2d: np.flatiter[_Array2D]
+
+###
+
+# .base
+assert_type(_a_nd.base, _ArrayND)
+assert_type(_a_1d.base, _Array1D)
+assert_type(_a_2d.base, _Array2D)
+
+# .coords
+assert_type(_a_nd.coords, tuple[Any, ...])
+assert_type(_a_1d.coords, tuple[int])
+assert_type(_a_2d.coords, tuple[int, int])
+
+# .index
+assert_type(_a_nd.index, int)
+assert_type(_a_1d.index, int)
+assert_type(_a_2d.index, int)
+
+# .__len__()
+assert_type(len(_a_nd), int)
+assert_type(len(_a_1d), int)
+assert_type(len(_a_2d), int)
+
+# .__iter__()
+assert_type(iter(_a_nd), np.flatiter[_ArrayND])
+assert_type(iter(_a_1d), np.flatiter[_Array1D])
+assert_type(iter(_a_2d), np.flatiter[_Array2D])
+
+# .__next__()
+assert_type(next(_a_nd), np.str_)
+assert_type(next(_a_1d), np.bytes_)
+assert_type(next(_a_2d), np.int8)
+
+# .__getitem__(())
+assert_type(_a_nd[()], _ArrayND)
+assert_type(_a_1d[()], _Array1D)
+assert_type(_a_2d[()], _Array2D)
+# .__getitem__(int)
+assert_type(_a_nd[0], np.str_)
+assert_type(_a_1d[0], np.bytes_)
+assert_type(_a_2d[0], np.int8)
+# .__getitem__(slice)
+assert_type(_a_nd[::], np.ndarray[tuple[int], np.dtypes.StrDType])
+assert_type(_a_1d[::], np.ndarray[tuple[int], np.dtypes.BytesDType])
+assert_type(_a_2d[::], np.ndarray[tuple[int], np.dtypes.Int8DType])
+# .__getitem__(EllipsisType)
+assert_type(_a_nd[...], np.ndarray[tuple[int], np.dtypes.StrDType])
+assert_type(_a_1d[...], np.ndarray[tuple[int], np.dtypes.BytesDType])
+assert_type(_a_2d[...], np.ndarray[tuple[int], np.dtypes.Int8DType])
+# .__getitem__(list[!])
+assert_type(_a_nd[[]], np.ndarray[tuple[int], np.dtypes.StrDType])
+assert_type(_a_1d[[]], np.ndarray[tuple[int], np.dtypes.BytesDType])
+assert_type(_a_2d[[]], np.ndarray[tuple[int], np.dtypes.Int8DType])
+# .__getitem__(list[int])
+assert_type(_a_nd[[0]], np.ndarray[tuple[int], np.dtypes.StrDType])
+assert_type(_a_1d[[0]], np.ndarray[tuple[int], np.dtypes.BytesDType])
+assert_type(_a_2d[[0]], np.ndarray[tuple[int], np.dtypes.Int8DType])
+# .__getitem__(list[list[int]])
+assert_type(_a_nd[[[0]]], np.ndarray[tuple[int, int], np.dtypes.StrDType])
+assert_type(_a_1d[[[0]]], np.ndarray[tuple[int, int], np.dtypes.BytesDType])
+assert_type(_a_2d[[[0]]], np.ndarray[tuple[int, int], np.dtypes.Int8DType])
+# .__getitem__(list[list[list[list[int]]]])
+assert_type(_a_nd[[[[[0]]]]], np.ndarray[tuple[Any, ...], np.dtypes.StrDType])
+assert_type(_a_1d[[[[[0]]]]], np.ndarray[tuple[Any, ...], np.dtypes.BytesDType])
+assert_type(_a_2d[[[[[0]]]]], np.ndarray[tuple[Any, ...], np.dtypes.Int8DType])
+
+# __array__()
+assert_type(_a_nd.__array__(), np.ndarray[tuple[int], np.dtypes.StrDType])
+assert_type(_a_1d.__array__(), np.ndarray[tuple[int], np.dtypes.BytesDType])
+assert_type(_a_2d.__array__(), np.ndarray[tuple[int], np.dtypes.Int8DType])
+
+# .copy()
+assert_type(_a_nd.copy(), np.ndarray[tuple[int], np.dtypes.StrDType])
+assert_type(_a_1d.copy(), np.ndarray[tuple[int], np.dtypes.BytesDType])
+assert_type(_a_2d.copy(), np.ndarray[tuple[int], np.dtypes.Int8DType])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/fromnumeric.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/fromnumeric.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..477c3f44d1de89a570e7e15c0e5151f9a01f379d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/fromnumeric.pyi
@@ -0,0 +1,347 @@
+"""Tests for :mod:`_core.fromnumeric`."""
+
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+class NDArraySubclass(npt.NDArray[np.complex128]): ...
+
+AR_b: npt.NDArray[np.bool]
+AR_f4: npt.NDArray[np.float32]
+AR_c16: npt.NDArray[np.complex128]
+AR_u8: npt.NDArray[np.uint64]
+AR_i8: npt.NDArray[np.int64]
+AR_O: npt.NDArray[np.object_]
+AR_subclass: NDArraySubclass
+AR_m: npt.NDArray[np.timedelta64]
+AR_0d: np.ndarray[tuple[()]]
+AR_1d: np.ndarray[tuple[int]]
+AR_nd: np.ndarray
+
+b: np.bool
+f4: np.float32
+i8: np.int64
+f: float
+
+# integer‑dtype subclass for argmin/argmax
+class NDArrayIntSubclass(npt.NDArray[np.intp]): ...
+AR_sub_i: NDArrayIntSubclass
+
+assert_type(np.take(b, 0), np.bool)
+assert_type(np.take(f4, 0), np.float32)
+assert_type(np.take(f, 0), Any)
+assert_type(np.take(AR_b, 0), np.bool)
+assert_type(np.take(AR_f4, 0), np.float32)
+assert_type(np.take(AR_b, [0]), npt.NDArray[np.bool])
+assert_type(np.take(AR_f4, [0]), npt.NDArray[np.float32])
+assert_type(np.take([1], [0]), npt.NDArray[Any])
+assert_type(np.take(AR_f4, [0], out=AR_subclass), NDArraySubclass)
+
+assert_type(np.reshape(b, 1), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.reshape(f4, 1), np.ndarray[tuple[int], np.dtype[np.float32]])
+assert_type(np.reshape(f, 1), np.ndarray[tuple[int], np.dtype])
+assert_type(np.reshape(AR_b, 1), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.reshape(AR_f4, 1), np.ndarray[tuple[int], np.dtype[np.float32]])
+
+assert_type(np.choose(1, [True, True]), Any)
+assert_type(np.choose([1], [True, True]), npt.NDArray[Any])
+assert_type(np.choose([1], AR_b), npt.NDArray[np.bool])
+assert_type(np.choose([1], AR_b, out=AR_f4), npt.NDArray[np.float32])
+
+assert_type(np.repeat(b, 1), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.repeat(b, 1, axis=0), npt.NDArray[np.bool])
+assert_type(np.repeat(f4, 1), np.ndarray[tuple[int], np.dtype[np.float32]])
+assert_type(np.repeat(f, 1), np.ndarray[tuple[int], np.dtype[Any]])
+assert_type(np.repeat(AR_b, 1), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.repeat(AR_f4, 1), np.ndarray[tuple[int], np.dtype[np.float32]])
+assert_type(np.repeat(AR_f4, 1, axis=0), npt.NDArray[np.float32])
+
+# TODO: array_bdd tests for np.put()
+
+assert_type(np.swapaxes([[0, 1]], 0, 0), npt.NDArray[Any])
+assert_type(np.swapaxes(AR_b, 0, 0), npt.NDArray[np.bool])
+assert_type(np.swapaxes(AR_f4, 0, 0), npt.NDArray[np.float32])
+
+assert_type(np.transpose(b), npt.NDArray[np.bool])
+assert_type(np.transpose(f4), npt.NDArray[np.float32])
+assert_type(np.transpose(f), npt.NDArray[Any])
+assert_type(np.transpose(AR_b), npt.NDArray[np.bool])
+assert_type(np.transpose(AR_f4), npt.NDArray[np.float32])
+
+assert_type(np.partition(b, 0, axis=None), npt.NDArray[np.bool])
+assert_type(np.partition(f4, 0, axis=None), npt.NDArray[np.float32])
+assert_type(np.partition(f, 0, axis=None), npt.NDArray[Any])
+assert_type(np.partition(AR_b, 0), npt.NDArray[np.bool])
+assert_type(np.partition(AR_f4, 0), npt.NDArray[np.float32])
+
+assert_type(np.argpartition(b, 0), npt.NDArray[np.intp])
+assert_type(np.argpartition(f4, 0), npt.NDArray[np.intp])
+assert_type(np.argpartition(f, 0), npt.NDArray[np.intp])
+assert_type(np.argpartition(AR_b, 0), npt.NDArray[np.intp])
+assert_type(np.argpartition(AR_f4, 0), npt.NDArray[np.intp])
+
+assert_type(np.sort([2, 1], 0), npt.NDArray[Any])
+assert_type(np.sort(AR_b, 0), npt.NDArray[np.bool])
+assert_type(np.sort(AR_f4, 0), npt.NDArray[np.float32])
+
+assert_type(np.argsort(AR_b, 0), npt.NDArray[np.intp])
+assert_type(np.argsort(AR_f4, 0), npt.NDArray[np.intp])
+
+assert_type(np.argmax(AR_b), np.intp)
+assert_type(np.argmax(AR_f4), np.intp)
+assert_type(np.argmax(AR_b, axis=0), Any)
+assert_type(np.argmax(AR_f4, axis=0), Any)
+assert_type(np.argmax(AR_f4, out=AR_sub_i), NDArrayIntSubclass)
+
+assert_type(np.argmin(AR_b), np.intp)
+assert_type(np.argmin(AR_f4), np.intp)
+assert_type(np.argmin(AR_b, axis=0), Any)
+assert_type(np.argmin(AR_f4, axis=0), Any)
+assert_type(np.argmin(AR_f4, out=AR_sub_i), NDArrayIntSubclass)
+
+assert_type(np.searchsorted(AR_b[0], 0), np.intp)
+assert_type(np.searchsorted(AR_f4[0], 0), np.intp)
+assert_type(np.searchsorted(AR_b[0], [0]), npt.NDArray[np.intp])
+assert_type(np.searchsorted(AR_f4[0], [0]), npt.NDArray[np.intp])
+
+assert_type(np.resize(b, (5, 5)), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.resize(f4, (5, 5)), np.ndarray[tuple[int, int], np.dtype[np.float32]])
+assert_type(np.resize(f, (5, 5)), np.ndarray[tuple[int, int], np.dtype])
+assert_type(np.resize(AR_b, (5, 5)), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.resize(AR_f4, (5, 5)), np.ndarray[tuple[int, int], np.dtype[np.float32]])
+
+assert_type(np.squeeze(b), np.bool)
+assert_type(np.squeeze(f4), np.float32)
+assert_type(np.squeeze(f), npt.NDArray[Any])
+assert_type(np.squeeze(AR_b), npt.NDArray[np.bool])
+assert_type(np.squeeze(AR_f4), npt.NDArray[np.float32])
+
+assert_type(np.diagonal(AR_b), npt.NDArray[np.bool])
+assert_type(np.diagonal(AR_f4), npt.NDArray[np.float32])
+
+assert_type(np.trace(AR_b), Any)
+assert_type(np.trace(AR_f4), Any)
+assert_type(np.trace(AR_f4, out=AR_subclass), NDArraySubclass)
+assert_type(np.trace(AR_f4, out=AR_subclass, dtype=None), NDArraySubclass)
+
+assert_type(np.ravel(b), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.ravel(f4), np.ndarray[tuple[int], np.dtype[np.float32]])
+assert_type(np.ravel(f), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.ravel(AR_b), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.ravel(AR_f4), np.ndarray[tuple[int], np.dtype[np.float32]])
+
+assert_type(np.nonzero(AR_b), tuple[np.ndarray[tuple[int], np.dtype[np.intp]], ...])
+assert_type(np.nonzero(AR_f4), tuple[np.ndarray[tuple[int], np.dtype[np.intp]], ...])
+assert_type(np.nonzero(AR_1d), tuple[np.ndarray[tuple[int], np.dtype[np.intp]], ...])
+assert_type(np.nonzero(AR_nd), tuple[np.ndarray[tuple[int], np.dtype[np.intp]], ...])
+
+assert_type(np.shape(b), tuple[()])
+assert_type(np.shape(f), tuple[()])
+assert_type(np.shape([1]), tuple[int])
+assert_type(np.shape([[2]]), tuple[int, int])
+assert_type(np.shape([[[3]]]), tuple[Any, ...])
+assert_type(np.shape(AR_b), tuple[Any, ...])
+assert_type(np.shape(AR_nd), tuple[Any, ...])
+# these fail on mypy, but it works as expected with pyright/pylance
+# assert_type(np.shape(AR_0d), tuple[()])
+# assert_type(np.shape(AR_1d), tuple[int])
+# assert_type(np.shape(AR_2d), tuple[int, int])
+
+assert_type(np.compress([True], b), npt.NDArray[np.bool])
+assert_type(np.compress([True], f4), npt.NDArray[np.float32])
+assert_type(np.compress([True], f), npt.NDArray[Any])
+assert_type(np.compress([True], AR_b), npt.NDArray[np.bool])
+assert_type(np.compress([True], AR_f4), npt.NDArray[np.float32])
+
+assert_type(np.clip(b, 0, 1.0), np.bool)
+assert_type(np.clip(f4, -1, 1), np.float32)
+assert_type(np.clip(f, 0, 1), Any)
+assert_type(np.clip(AR_b, 0, 1), npt.NDArray[np.bool])
+assert_type(np.clip(AR_f4, 0, 1), npt.NDArray[np.float32])
+assert_type(np.clip([0], 0, 1), npt.NDArray[Any])
+assert_type(np.clip(AR_b, 0, 1, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.sum(b), np.bool)
+assert_type(np.sum(f4), np.float32)
+assert_type(np.sum(f), Any)
+assert_type(np.sum(AR_b), np.bool)
+assert_type(np.sum(AR_f4), np.float32)
+assert_type(np.sum(AR_b, axis=0), Any)
+assert_type(np.sum(AR_f4, axis=0), Any)
+assert_type(np.sum(AR_f4, out=AR_subclass), NDArraySubclass)
+assert_type(np.sum(AR_f4, dtype=np.float64), np.float64)
+assert_type(np.sum(AR_f4, None, np.float64), np.float64)
+assert_type(np.sum(AR_f4, dtype=np.float64, keepdims=False), np.float64)
+assert_type(np.sum(AR_f4, None, np.float64, keepdims=False), np.float64)
+assert_type(np.sum(AR_f4, dtype=np.float64, keepdims=True), np.float64 | npt.NDArray[np.float64])
+assert_type(np.sum(AR_f4, None, np.float64, keepdims=True), np.float64 | npt.NDArray[np.float64])
+
+assert_type(np.all(b), np.bool)
+assert_type(np.all(f4), np.bool)
+assert_type(np.all(f), np.bool)
+assert_type(np.all(AR_b), np.bool)
+assert_type(np.all(AR_f4), np.bool)
+assert_type(np.all(AR_b, axis=0), Any)
+assert_type(np.all(AR_f4, axis=0), Any)
+assert_type(np.all(AR_b, keepdims=True), Any)
+assert_type(np.all(AR_f4, keepdims=True), Any)
+assert_type(np.all(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.any(b), np.bool)
+assert_type(np.any(f4), np.bool)
+assert_type(np.any(f), np.bool)
+assert_type(np.any(AR_b), np.bool)
+assert_type(np.any(AR_f4), np.bool)
+assert_type(np.any(AR_b, axis=0), Any)
+assert_type(np.any(AR_f4, axis=0), Any)
+assert_type(np.any(AR_b, keepdims=True), Any)
+assert_type(np.any(AR_f4, keepdims=True), Any)
+assert_type(np.any(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.cumsum(b), npt.NDArray[np.bool])
+assert_type(np.cumsum(f4), npt.NDArray[np.float32])
+assert_type(np.cumsum(f), npt.NDArray[Any])
+assert_type(np.cumsum(AR_b), npt.NDArray[np.bool])
+assert_type(np.cumsum(AR_f4), npt.NDArray[np.float32])
+assert_type(np.cumsum(f, dtype=float), npt.NDArray[Any])
+assert_type(np.cumsum(f, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(np.cumsum(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.cumulative_sum(b), npt.NDArray[np.bool])
+assert_type(np.cumulative_sum(f4), npt.NDArray[np.float32])
+assert_type(np.cumulative_sum(f), npt.NDArray[Any])
+assert_type(np.cumulative_sum(AR_b), npt.NDArray[np.bool])
+assert_type(np.cumulative_sum(AR_f4), npt.NDArray[np.float32])
+assert_type(np.cumulative_sum(f, dtype=float), npt.NDArray[Any])
+assert_type(np.cumulative_sum(f, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(np.cumulative_sum(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.ptp(b), np.bool)
+assert_type(np.ptp(f4), np.float32)
+assert_type(np.ptp(f), Any)
+assert_type(np.ptp(AR_b), np.bool)
+assert_type(np.ptp(AR_f4), np.float32)
+assert_type(np.ptp(AR_b, axis=0), Any)
+assert_type(np.ptp(AR_f4, axis=0), Any)
+assert_type(np.ptp(AR_b, keepdims=True), Any)
+assert_type(np.ptp(AR_f4, keepdims=True), Any)
+assert_type(np.ptp(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.amax(b), np.bool)
+assert_type(np.amax(f4), np.float32)
+assert_type(np.amax(f), Any)
+assert_type(np.amax(AR_b), np.bool)
+assert_type(np.amax(AR_f4), np.float32)
+assert_type(np.amax(AR_b, axis=0), Any)
+assert_type(np.amax(AR_f4, axis=0), Any)
+assert_type(np.amax(AR_b, keepdims=True), Any)
+assert_type(np.amax(AR_f4, keepdims=True), Any)
+assert_type(np.amax(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.amin(b), np.bool)
+assert_type(np.amin(f4), np.float32)
+assert_type(np.amin(f), Any)
+assert_type(np.amin(AR_b), np.bool)
+assert_type(np.amin(AR_f4), np.float32)
+assert_type(np.amin(AR_b, axis=0), Any)
+assert_type(np.amin(AR_f4, axis=0), Any)
+assert_type(np.amin(AR_b, keepdims=True), Any)
+assert_type(np.amin(AR_f4, keepdims=True), Any)
+assert_type(np.amin(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.prod(AR_b), np.int_)
+assert_type(np.prod(AR_u8), np.uint64)
+assert_type(np.prod(AR_i8), np.int64)
+assert_type(np.prod(AR_f4), np.floating)
+assert_type(np.prod(AR_c16), np.complexfloating)
+assert_type(np.prod(AR_O), Any)
+assert_type(np.prod(AR_f4, axis=0), Any)
+assert_type(np.prod(AR_f4, keepdims=True), Any)
+assert_type(np.prod(AR_f4, dtype=np.float64), np.float64)
+assert_type(np.prod(AR_f4, dtype=float), Any)
+assert_type(np.prod(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.cumprod(AR_b), npt.NDArray[np.int_])
+assert_type(np.cumprod(AR_u8), npt.NDArray[np.uint64])
+assert_type(np.cumprod(AR_i8), npt.NDArray[np.int64])
+assert_type(np.cumprod(AR_f4), npt.NDArray[np.floating])
+assert_type(np.cumprod(AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.cumprod(AR_O), npt.NDArray[np.object_])
+assert_type(np.cumprod(AR_f4, axis=0), npt.NDArray[np.floating])
+assert_type(np.cumprod(AR_f4, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(np.cumprod(AR_f4, dtype=float), npt.NDArray[Any])
+assert_type(np.cumprod(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.cumulative_prod(AR_b), npt.NDArray[np.int_])
+assert_type(np.cumulative_prod(AR_u8), npt.NDArray[np.uint64])
+assert_type(np.cumulative_prod(AR_i8), npt.NDArray[np.int64])
+assert_type(np.cumulative_prod(AR_f4), npt.NDArray[np.floating])
+assert_type(np.cumulative_prod(AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.cumulative_prod(AR_O), npt.NDArray[np.object_])
+assert_type(np.cumulative_prod(AR_f4, axis=0), npt.NDArray[np.floating])
+assert_type(np.cumulative_prod(AR_f4, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(np.cumulative_prod(AR_f4, dtype=float), npt.NDArray[Any])
+assert_type(np.cumulative_prod(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.ndim(b), int)
+assert_type(np.ndim(f4), int)
+assert_type(np.ndim(f), int)
+assert_type(np.ndim(AR_b), int)
+assert_type(np.ndim(AR_f4), int)
+
+assert_type(np.size(b), int)
+assert_type(np.size(f4), int)
+assert_type(np.size(f), int)
+assert_type(np.size(AR_b), int)
+assert_type(np.size(AR_f4), int)
+
+assert_type(np.around(b), np.float16)
+assert_type(np.around(f), Any)
+assert_type(np.around(i8), np.int64)
+assert_type(np.around(f4), np.float32)
+assert_type(np.around(AR_b), npt.NDArray[np.float16])
+assert_type(np.around(AR_i8), npt.NDArray[np.int64])
+assert_type(np.around(AR_f4), npt.NDArray[np.float32])
+assert_type(np.around([1.5]), npt.NDArray[Any])
+assert_type(np.around(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.mean(AR_b), np.floating)
+assert_type(np.mean(AR_i8), np.floating)
+assert_type(np.mean(AR_f4), np.floating)
+assert_type(np.mean(AR_m), np.timedelta64)
+assert_type(np.mean(AR_c16), np.complexfloating)
+assert_type(np.mean(AR_O), Any)
+assert_type(np.mean(AR_f4, axis=0), Any)
+assert_type(np.mean(AR_f4, keepdims=True), Any)
+assert_type(np.mean(AR_f4, dtype=float), Any)
+assert_type(np.mean(AR_f4, dtype=np.float64), np.float64)
+assert_type(np.mean(AR_f4, out=AR_subclass), NDArraySubclass)
+assert_type(np.mean(AR_f4, dtype=np.float64), np.float64)
+assert_type(np.mean(AR_f4, None, np.float64), np.float64)
+assert_type(np.mean(AR_f4, dtype=np.float64, keepdims=False), np.float64)
+assert_type(np.mean(AR_f4, None, np.float64, keepdims=False), np.float64)
+assert_type(np.mean(AR_f4, dtype=np.float64, keepdims=True), np.float64 | npt.NDArray[np.float64])
+assert_type(np.mean(AR_f4, None, np.float64, keepdims=True), np.float64 | npt.NDArray[np.float64])
+
+assert_type(np.std(AR_b), np.floating)
+assert_type(np.std(AR_i8), np.floating)
+assert_type(np.std(AR_f4), np.floating)
+assert_type(np.std(AR_c16), np.floating)
+assert_type(np.std(AR_O), Any)
+assert_type(np.std(AR_f4, axis=0), Any)
+assert_type(np.std(AR_f4, keepdims=True), Any)
+assert_type(np.std(AR_f4, dtype=float), Any)
+assert_type(np.std(AR_f4, dtype=np.float64), np.float64)
+assert_type(np.std(AR_f4, out=AR_subclass), NDArraySubclass)
+
+assert_type(np.var(AR_b), np.floating)
+assert_type(np.var(AR_i8), np.floating)
+assert_type(np.var(AR_f4), np.floating)
+assert_type(np.var(AR_c16), np.floating)
+assert_type(np.var(AR_O), Any)
+assert_type(np.var(AR_f4, axis=0), Any)
+assert_type(np.var(AR_f4, keepdims=True), Any)
+assert_type(np.var(AR_f4, dtype=float), Any)
+assert_type(np.var(AR_f4, dtype=np.float64), np.float64)
+assert_type(np.var(AR_f4, out=AR_subclass), NDArraySubclass)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/getlimits.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/getlimits.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..7ca7925e8ac23d21f122bba739a5408d7d1ff307
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/getlimits.pyi
@@ -0,0 +1,53 @@
+from typing import assert_type
+
+import numpy as np
+
+f: float
+f8: np.float64
+c8: np.complex64
+c16: np.complex128
+
+i: int
+i8: np.int64
+u4: np.uint32
+
+finfo_f8: np.finfo[np.float64]
+iinfo_i8: np.iinfo[np.int64]
+
+assert_type(np.finfo(f), np.finfo[np.float64])
+assert_type(np.finfo(f8), np.finfo[np.float64])
+assert_type(np.finfo(c8), np.finfo[np.float32])
+assert_type(np.finfo(c16), np.finfo[np.float64])
+assert_type(np.finfo("f2"), np.finfo[np.float16])
+
+assert_type(finfo_f8.dtype, np.dtype[np.float64])
+assert_type(finfo_f8.bits, int)
+assert_type(finfo_f8.eps, np.float64)
+assert_type(finfo_f8.epsneg, np.float64)
+assert_type(finfo_f8.iexp, int)
+assert_type(finfo_f8.machep, int)
+assert_type(finfo_f8.max, np.float64)
+assert_type(finfo_f8.maxexp, int)
+assert_type(finfo_f8.min, np.float64)
+assert_type(finfo_f8.minexp, int)
+assert_type(finfo_f8.negep, int)
+assert_type(finfo_f8.nexp, int)
+assert_type(finfo_f8.nmant, int)
+assert_type(finfo_f8.precision, int)
+assert_type(finfo_f8.resolution, np.float64)
+assert_type(finfo_f8.tiny, np.float64)
+assert_type(finfo_f8.smallest_normal, np.float64)
+assert_type(finfo_f8.smallest_subnormal, np.float64)
+
+assert_type(np.iinfo(i), np.iinfo[np.int_])
+assert_type(np.iinfo(i8), np.iinfo[np.int64])
+assert_type(np.iinfo(u4), np.iinfo[np.uint32])
+assert_type(np.iinfo("i2"), np.iinfo[np.int16])
+assert_type(np.iinfo("u2"), np.iinfo[np.uint16])
+
+assert_type(iinfo_i8.dtype, np.dtype[np.int64])
+assert_type(iinfo_i8.kind, str)
+assert_type(iinfo_i8.bits, int)
+assert_type(iinfo_i8.key, str)
+assert_type(iinfo_i8.min, int)
+assert_type(iinfo_i8.max, int)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/histograms.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/histograms.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..d1acfe127d30e1111bd54558eb22a28d3a943c8e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/histograms.pyi
@@ -0,0 +1,25 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+
+assert_type(np.histogram_bin_edges(AR_i8, bins="auto"), npt.NDArray[Any])
+assert_type(np.histogram_bin_edges(AR_i8, bins="rice", range=(0, 3)), npt.NDArray[Any])
+assert_type(np.histogram_bin_edges(AR_i8, bins="scott", weights=AR_f8), npt.NDArray[Any])
+
+assert_type(np.histogram(AR_i8, bins="auto"), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+assert_type(np.histogram(AR_i8, bins="rice", range=(0, 3)), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+assert_type(np.histogram(AR_i8, bins="scott", weights=AR_f8), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+assert_type(np.histogram(AR_f8, bins=1, density=True), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+
+assert_type(np.histogramdd(AR_i8, bins=[1]),
+            tuple[npt.NDArray[Any], tuple[npt.NDArray[Any], ...]])
+assert_type(np.histogramdd(AR_i8, range=[(0, 3)]),
+            tuple[npt.NDArray[Any], tuple[npt.NDArray[Any], ...]])
+assert_type(np.histogramdd(AR_i8, weights=AR_f8),
+            tuple[npt.NDArray[Any], tuple[npt.NDArray[Any], ...]])
+assert_type(np.histogramdd(AR_f8, density=True),
+            tuple[npt.NDArray[Any], tuple[npt.NDArray[Any], ...]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/index_tricks.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/index_tricks.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..4cb12e6b137ce6f24b1467ad055d82b5beb1b2a5
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/index_tricks.pyi
@@ -0,0 +1,70 @@
+from types import EllipsisType
+from typing import Any, Literal, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_LIKE_b: list[bool]
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+AR_LIKE_U: list[str]
+AR_LIKE_O: list[object]
+
+AR_i8: npt.NDArray[np.int64]
+AR_O: npt.NDArray[np.object_]
+
+assert_type(np.ndenumerate(AR_i8), np.ndenumerate[np.int64])
+assert_type(np.ndenumerate(AR_LIKE_f), np.ndenumerate[np.float64])
+assert_type(np.ndenumerate(AR_LIKE_U), np.ndenumerate[np.str_])
+assert_type(np.ndenumerate(AR_LIKE_O), np.ndenumerate[Any])
+
+assert_type(next(np.ndenumerate(AR_i8)), tuple[tuple[Any, ...], np.int64])
+assert_type(next(np.ndenumerate(AR_LIKE_f)), tuple[tuple[Any, ...], np.float64])
+assert_type(next(np.ndenumerate(AR_LIKE_U)), tuple[tuple[Any, ...], np.str_])
+assert_type(next(np.ndenumerate(AR_LIKE_O)), tuple[tuple[Any, ...], Any])
+
+assert_type(iter(np.ndenumerate(AR_i8)), np.ndenumerate[np.int64])
+assert_type(iter(np.ndenumerate(AR_LIKE_f)), np.ndenumerate[np.float64])
+assert_type(iter(np.ndenumerate(AR_LIKE_U)), np.ndenumerate[np.str_])
+assert_type(iter(np.ndenumerate(AR_LIKE_O)), np.ndenumerate[Any])
+
+assert_type(np.ndindex(1, 2, 3), np.ndindex)
+assert_type(np.ndindex((1, 2, 3)), np.ndindex)
+assert_type(iter(np.ndindex(1, 2, 3)), np.ndindex)
+assert_type(next(np.ndindex(1, 2, 3)), tuple[Any, ...])
+
+assert_type(np.unravel_index([22, 41, 37], (7, 6)), tuple[npt.NDArray[np.intp], ...])
+assert_type(np.unravel_index([31, 41, 13], (7, 6), order="F"), tuple[npt.NDArray[np.intp], ...])
+assert_type(np.unravel_index(1621, (6, 7, 8, 9)), tuple[np.intp, ...])
+
+assert_type(np.ravel_multi_index([[1]], (7, 6)), npt.NDArray[np.intp])
+assert_type(np.ravel_multi_index(AR_LIKE_i, (7, 6)), np.intp)
+assert_type(np.ravel_multi_index(AR_LIKE_i, (7, 6), order="F"), np.intp)
+assert_type(np.ravel_multi_index(AR_LIKE_i, (4, 6), mode="clip"), np.intp)
+assert_type(np.ravel_multi_index(AR_LIKE_i, (4, 4), mode=("clip", "wrap")), np.intp)
+assert_type(np.ravel_multi_index((3, 1, 4, 1), (6, 7, 8, 9)), np.intp)
+
+assert_type(np.mgrid[1:1:2], npt.NDArray[Any])
+assert_type(np.mgrid[1:1:2, None:10], npt.NDArray[Any])
+
+assert_type(np.ogrid[1:1:2], tuple[npt.NDArray[Any], ...])
+assert_type(np.ogrid[1:1:2, None:10], tuple[npt.NDArray[Any], ...])
+
+assert_type(np.index_exp[0:1], tuple[slice[int, int, None]])
+assert_type(np.index_exp[0:1, None:3], tuple[slice[int, int, None], slice[None, int, None]])
+assert_type(np.index_exp[0, 0:1, ..., [0, 1, 3]], tuple[Literal[0], slice[int, int, None], EllipsisType, list[int]])
+
+assert_type(np.s_[0:1], slice[int, int, None])
+assert_type(np.s_[0:1, None:3], tuple[slice[int, int, None], slice[None, int, None]])
+assert_type(np.s_[0, 0:1, ..., [0, 1, 3]], tuple[Literal[0], slice[int, int, None], EllipsisType, list[int]])
+
+assert_type(np.ix_(AR_LIKE_b), tuple[npt.NDArray[np.bool], ...])
+assert_type(np.ix_(AR_LIKE_i, AR_LIKE_f), tuple[npt.NDArray[np.float64], ...])
+assert_type(np.ix_(AR_i8), tuple[npt.NDArray[np.int64], ...])
+
+assert_type(np.fill_diagonal(AR_i8, 5), None)
+
+assert_type(np.diag_indices(4), tuple[npt.NDArray[np.int_], ...])
+assert_type(np.diag_indices(2, 3), tuple[npt.NDArray[np.int_], ...])
+
+assert_type(np.diag_indices_from(AR_i8), tuple[npt.NDArray[np.int_], ...])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_function_base.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_function_base.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..815ddea28c316a44dcd98527a57717b2c93bb63e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_function_base.pyi
@@ -0,0 +1,409 @@
+from collections.abc import Callable
+from fractions import Fraction
+from typing import Any, LiteralString, assert_type, type_check_only
+
+import numpy as np
+import numpy.typing as npt
+
+f8: np.float64
+AR_LIKE_b: list[bool]
+AR_LIKE_i8: list[int]
+AR_LIKE_f8: list[float]
+AR_LIKE_c16: list[complex]
+AR_LIKE_O: list[Fraction]
+
+AR_u1: npt.NDArray[np.uint8]
+AR_i8: npt.NDArray[np.int64]
+AR_f2: npt.NDArray[np.float16]
+AR_f4: npt.NDArray[np.float32]
+AR_f8: npt.NDArray[np.float64]
+AR_f10: npt.NDArray[np.longdouble]
+AR_c8: npt.NDArray[np.complex64]
+AR_c16: npt.NDArray[np.complex128]
+AR_c20: npt.NDArray[np.clongdouble]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+AR_O: npt.NDArray[np.object_]
+AR_b: npt.NDArray[np.bool]
+AR_U: npt.NDArray[np.str_]
+CHAR_AR_U: np.char.chararray[tuple[Any, ...], np.dtype[np.str_]]
+
+AR_f8_1d: np.ndarray[tuple[int], np.dtype[np.float64]]
+AR_f8_2d: np.ndarray[tuple[int, int], np.dtype[np.float64]]
+AR_f8_3d: np.ndarray[tuple[int, int, int], np.dtype[np.float64]]
+AR_c16_1d: np.ndarray[tuple[int], np.dtype[np.complex128]]
+
+AR_b_list: list[npt.NDArray[np.bool]]
+
+@type_check_only
+def func(a: np.ndarray, posarg: bool = ..., /, arg: int = ..., *, kwarg: str = ...) -> np.ndarray: ...
+@type_check_only
+def func_f8(a: npt.NDArray[np.float64]) -> npt.NDArray[np.float64]: ...
+
+###
+
+# vectorize
+vectorized_func: np.vectorize
+assert_type(vectorized_func.pyfunc, Callable[..., Any])
+assert_type(vectorized_func.cache, bool)
+assert_type(vectorized_func.signature, LiteralString | None)
+assert_type(vectorized_func.otypes, LiteralString | None)
+assert_type(vectorized_func.excluded, set[int | str])
+assert_type(vectorized_func.__doc__, str | None)
+assert_type(vectorized_func([1]), Any)
+assert_type(np.vectorize(int), np.vectorize)
+assert_type(
+    np.vectorize(int, otypes="i", doc="doc", excluded=(), cache=True, signature=None),
+    np.vectorize,
+)
+
+# rot90
+assert_type(np.rot90(AR_f8_1d), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.rot90(AR_f8, k=2), npt.NDArray[np.float64])
+assert_type(np.rot90(AR_LIKE_f8, axes=(0, 1)), np.ndarray)
+
+# flip
+assert_type(np.flip(AR_f8_1d), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.flip(AR_f8, axis=(0, 1)), npt.NDArray[np.float64])
+assert_type(np.flip(AR_LIKE_f8, axis=0), np.ndarray)
+
+# iterable
+assert_type(np.iterable(1), bool)
+assert_type(np.iterable([1]), bool)
+
+# average
+assert_type(np.average(AR_f8_2d), np.float64)
+assert_type(np.average(AR_f8_2d, axis=1), npt.NDArray[np.float64])
+assert_type(np.average(AR_f8_2d, keepdims=True), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.average(AR_f8), np.float64)
+assert_type(np.average(AR_f8, axis=1), npt.NDArray[np.float64])
+assert_type(np.average(AR_f8, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.average(AR_f8, returned=True), tuple[np.float64, np.float64])
+assert_type(np.average(AR_f8, axis=1, returned=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.average(AR_f8, keepdims=True, returned=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.average(AR_LIKE_f8), np.float64)
+assert_type(np.average(AR_LIKE_f8, weights=AR_f8), np.float64)
+assert_type(np.average(AR_LIKE_f8, axis=1), npt.NDArray[np.float64])
+assert_type(np.average(AR_LIKE_f8, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.average(AR_LIKE_f8, returned=True), tuple[np.float64, np.float64])
+assert_type(np.average(AR_LIKE_f8, axis=1, returned=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.average(AR_LIKE_f8, keepdims=True, returned=True), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+assert_type(np.average(AR_O), Any)
+assert_type(np.average(AR_O, axis=1), np.ndarray)
+assert_type(np.average(AR_O, keepdims=True), np.ndarray)
+assert_type(np.average(AR_O, returned=True), tuple[Any, Any])
+assert_type(np.average(AR_O, axis=1, returned=True), tuple[np.ndarray, np.ndarray])
+assert_type(np.average(AR_O, keepdims=True, returned=True), tuple[np.ndarray, np.ndarray])
+
+# asarray_chkfinite
+assert_type(np.asarray_chkfinite(AR_f8_1d), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.asarray_chkfinite(AR_f8), npt.NDArray[np.float64])
+assert_type(np.asarray_chkfinite(AR_LIKE_f8), np.ndarray)
+assert_type(np.asarray_chkfinite(AR_f8, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(np.asarray_chkfinite(AR_f8, dtype=float), np.ndarray)
+
+# piecewise
+assert_type(np.piecewise(AR_f8_1d, AR_b, [func]), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.piecewise(AR_f8, AR_b, [func]), npt.NDArray[np.float64])
+assert_type(np.piecewise(AR_f8, AR_b, [func_f8]), npt.NDArray[np.float64])
+assert_type(np.piecewise(AR_f8, AR_b_list, [func]), npt.NDArray[np.float64])
+assert_type(np.piecewise(AR_f8, AR_b_list, [func_f8]), npt.NDArray[np.float64])
+assert_type(np.piecewise(AR_f8, AR_b_list, [func], True, -1, kwarg=""), npt.NDArray[np.float64])
+assert_type(np.piecewise(AR_f8, AR_b_list, [func], True, arg=-1, kwarg=""), npt.NDArray[np.float64])
+assert_type(np.piecewise(AR_LIKE_f8, AR_b_list, [func]), np.ndarray)
+assert_type(np.piecewise(AR_LIKE_f8, AR_b_list, [func_f8]), npt.NDArray[np.float64])
+
+# extract
+assert_type(np.extract(AR_i8, AR_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.extract(AR_i8, AR_LIKE_b), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.extract(AR_i8, AR_LIKE_i8), np.ndarray[tuple[int], np.dtype[np.int_]])
+assert_type(np.extract(AR_i8, AR_LIKE_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.extract(AR_i8, AR_LIKE_c16), np.ndarray[tuple[int], np.dtype[np.complex128]])
+
+# select
+assert_type(np.select([AR_b], [AR_f8_1d]), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.select([AR_b], [AR_f8]), npt.NDArray[np.float64])
+
+# places
+assert_type(np.place(AR_f8, mask=AR_i8, vals=5.0), None)
+
+# copy
+assert_type(np.copy(AR_LIKE_f8), np.ndarray)
+assert_type(np.copy(AR_U), npt.NDArray[np.str_])
+assert_type(np.copy(CHAR_AR_U, "K", subok=True), np.char.chararray[tuple[Any, ...], np.dtype[np.str_]])
+assert_type(np.copy(CHAR_AR_U, subok=True), np.char.chararray[tuple[Any, ...], np.dtype[np.str_]])
+# pyright correctly infers `NDArray[str_]` here
+assert_type(np.copy(CHAR_AR_U), np.ndarray[Any, Any])  # pyright: ignore[reportAssertTypeFailure]
+
+# gradient
+assert_type(np.gradient(AR_f8_1d, 1), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(
+    np.gradient(AR_f8_2d, [1, 2], [2, 3.5, 4]),
+    tuple[
+        np.ndarray[tuple[int, int], np.dtype[np.float64]],
+        np.ndarray[tuple[int, int], np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.gradient(AR_f8_3d),
+    tuple[
+        np.ndarray[tuple[int, int, int], np.dtype[np.float64]],
+        np.ndarray[tuple[int, int, int], np.dtype[np.float64]],
+        np.ndarray[tuple[int, int, int], np.dtype[np.float64]],
+    ],
+)
+assert_type(np.gradient(AR_f8), np.ndarray[tuple[int], np.dtype[np.float64]] | Any)
+assert_type(np.gradient(AR_LIKE_f8, edge_order=2), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.gradient(AR_LIKE_c16, axis=0), np.ndarray[tuple[int], np.dtype[np.complex128]])
+
+# diff
+assert_type(np.diff("git", n=0), str)
+assert_type(np.diff(AR_f8), npt.NDArray[np.float64])
+assert_type(np.diff(AR_f8_1d, axis=0), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.diff(AR_f8_2d, axis=0), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.diff(AR_LIKE_f8, prepend=1.5), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.diff(AR_c16), npt.NDArray[np.complex128])
+assert_type(np.diff(AR_c16_1d), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(np.diff(AR_LIKE_c16), np.ndarray[tuple[int], np.dtype[np.complex128]])
+
+# interp
+assert_type(np.interp(1, [1], AR_f8), np.float64)
+assert_type(np.interp(1, [1], [1]), np.float64)
+assert_type(np.interp(1, [1], AR_c16), np.complex128)
+assert_type(np.interp(1, [1], [1j]), np.complex128)
+assert_type(np.interp([1], [1], AR_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.interp([1], [1], [1]),  np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.interp([1], [1], AR_c16), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(np.interp([1], [1], [1j]), np.ndarray[tuple[int], np.dtype[np.complex128]])
+
+# angle
+assert_type(np.angle(1), np.float64)
+assert_type(np.angle(1, deg=True), np.float64)
+assert_type(np.angle(1j), np.float64)
+assert_type(np.angle(f8), np.float64)
+assert_type(np.angle(AR_b), npt.NDArray[np.float64])
+assert_type(np.angle(AR_u1), npt.NDArray[np.float64])
+assert_type(np.angle(AR_i8), npt.NDArray[np.float64])
+assert_type(np.angle(AR_f2), npt.NDArray[np.float16])
+assert_type(np.angle(AR_f4), npt.NDArray[np.float32])
+assert_type(np.angle(AR_c8), npt.NDArray[np.float32])
+assert_type(np.angle(AR_f8), npt.NDArray[np.float64])
+assert_type(np.angle(AR_c16), npt.NDArray[np.float64])
+assert_type(np.angle(AR_f10), npt.NDArray[np.longdouble])
+assert_type(np.angle(AR_c20), npt.NDArray[np.longdouble])
+assert_type(np.angle(AR_f8_1d), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.angle(AR_c16_1d), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.angle(AR_LIKE_b), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.angle(AR_LIKE_i8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.angle(AR_LIKE_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.angle(AR_LIKE_c16), np.ndarray[tuple[int], np.dtype[np.float64]])
+
+# unwrap
+assert_type(np.unwrap(AR_f2), npt.NDArray[np.float16])
+assert_type(np.unwrap(AR_f8), npt.NDArray[np.float64])
+assert_type(np.unwrap(AR_f10), npt.NDArray[np.longdouble])
+assert_type(np.unwrap(AR_O), npt.NDArray[np.object_])
+assert_type(np.unwrap(AR_f8_1d), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.unwrap(AR_f8_2d), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.unwrap(AR_f8_3d), np.ndarray[tuple[int, int, int], np.dtype[np.float64]])
+assert_type(np.unwrap(AR_LIKE_b), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.unwrap(AR_LIKE_i8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.unwrap(AR_LIKE_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+
+# sort_complex
+assert_type(np.sort_complex(AR_u1), npt.NDArray[np.complex64])
+assert_type(np.sort_complex(AR_f8), npt.NDArray[np.complex128])
+assert_type(np.sort_complex(AR_f10), npt.NDArray[np.clongdouble])
+assert_type(np.sort_complex(AR_f8_1d), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(np.sort_complex(AR_c16_1d), np.ndarray[tuple[int], np.dtype[np.complex128]])
+
+# trim_zeros
+assert_type(np.trim_zeros(AR_f8), npt.NDArray[np.float64])
+assert_type(np.trim_zeros(AR_LIKE_f8), list[float])
+
+# cov
+assert_type(np.cov(AR_f8_1d), np.ndarray[tuple[()], np.dtype[np.float64]])
+assert_type(np.cov(AR_f8_2d), npt.NDArray[np.float64])
+assert_type(np.cov(AR_f8), npt.NDArray[np.float64])
+assert_type(np.cov(AR_f8, AR_f8), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.cov(AR_c16, AR_c16), np.ndarray[tuple[int, int], np.dtype[np.complex128]])
+assert_type(np.cov(AR_LIKE_f8), np.ndarray[tuple[()], np.dtype[np.float64]])
+assert_type(np.cov(AR_LIKE_f8, AR_LIKE_f8), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.cov(AR_LIKE_f8, dtype=np.float16), np.ndarray[tuple[()], np.dtype[np.float16]])
+assert_type(np.cov(AR_LIKE_f8, AR_LIKE_f8, dtype=np.float32), np.ndarray[tuple[int, int], np.dtype[np.float32]])
+assert_type(np.cov(AR_f8, AR_f8, dtype=float), np.ndarray[tuple[int, int]])
+assert_type(np.cov(AR_LIKE_f8, dtype=float), np.ndarray[tuple[()]])
+assert_type(np.cov(AR_LIKE_f8, AR_LIKE_f8, dtype=float), np.ndarray[tuple[int, int]])
+
+# corrcoef
+assert_type(np.corrcoef(AR_f8_1d), np.float64)
+assert_type(np.corrcoef(AR_f8_2d), np.ndarray[tuple[int, int], np.dtype[np.float64]] | np.float64)
+assert_type(np.corrcoef(AR_f8), np.ndarray[tuple[int, int], np.dtype[np.float64]] | np.float64)
+assert_type(np.corrcoef(AR_f8, AR_f8), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.corrcoef(AR_c16, AR_c16), np.ndarray[tuple[int, int], np.dtype[np.complex128]])
+assert_type(np.corrcoef(AR_LIKE_f8), np.float64)
+assert_type(np.corrcoef(AR_LIKE_f8, AR_LIKE_f8), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.corrcoef(AR_LIKE_f8, dtype=np.float16), np.float16)
+assert_type(np.corrcoef(AR_LIKE_f8, AR_LIKE_f8, dtype=np.float32), np.ndarray[tuple[int, int], np.dtype[np.float32]])
+assert_type(np.corrcoef(AR_f8, AR_f8, dtype=float), np.ndarray[tuple[int, int]])
+assert_type(np.corrcoef(AR_LIKE_f8, dtype=float), Any)
+assert_type(np.corrcoef(AR_LIKE_f8, AR_LIKE_f8, dtype=float), np.ndarray[tuple[int, int]])
+
+# window functions
+assert_type(np.blackman(5), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.bartlett(6), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.hanning(4.5), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.hamming(0), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.kaiser(4, 5.9), np.ndarray[tuple[int], np.dtype[np.float64]])
+
+# i0 (bessel function)
+assert_type(np.i0(AR_i8), npt.NDArray[np.float64])
+
+# sinc (cardinal sine function)
+assert_type(np.sinc(1.0), np.float64)
+assert_type(np.sinc(1j), np.complex128 | Any)
+assert_type(np.sinc(AR_f8), npt.NDArray[np.float64])
+assert_type(np.sinc(AR_c16), npt.NDArray[np.complex128])
+assert_type(np.sinc(AR_LIKE_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.sinc(AR_LIKE_c16), np.ndarray[tuple[int], np.dtype[np.complex128]])
+
+# median
+assert_type(np.median(AR_f8, keepdims=False), np.float64)
+assert_type(np.median(AR_c16, overwrite_input=True), np.complex128)
+assert_type(np.median(AR_m), np.timedelta64)
+assert_type(np.median(AR_O), Any)
+assert_type(np.median(AR_f8, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.median(AR_f8, axis=0), npt.NDArray[np.float64])
+assert_type(np.median(AR_c16, keepdims=True), npt.NDArray[np.complex128])
+assert_type(np.median(AR_c16, axis=0), npt.NDArray[np.complex128])
+assert_type(np.median(AR_LIKE_f8, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.median(AR_LIKE_c16, keepdims=True), npt.NDArray[np.complex128])
+assert_type(np.median(AR_LIKE_f8, out=AR_c16), npt.NDArray[np.complex128])
+
+# percentile
+assert_type(np.percentile(AR_f8, 50), np.float64)
+assert_type(np.percentile(AR_f8, 50, axis=1), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_f8, 50, axis=(1, 0)), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_f8, 50, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_f8, 50, axis=0, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_c16, 50), np.complex128)
+assert_type(np.percentile(AR_m, 50), np.timedelta64)
+assert_type(np.percentile(AR_M, 50, overwrite_input=True), np.datetime64)
+assert_type(np.percentile(AR_O, 50), Any)
+assert_type(np.percentile(AR_f8, [50]), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_f8, [50], axis=1), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_f8, [50], keepdims=True), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_c16, [50]), npt.NDArray[np.complex128])
+assert_type(np.percentile(AR_m, [50]), npt.NDArray[np.timedelta64])
+assert_type(np.percentile(AR_M, [50], method="nearest"), npt.NDArray[np.datetime64])
+assert_type(np.percentile(AR_O, [50]), npt.NDArray[np.object_])
+assert_type(np.percentile(AR_f8, [50], keepdims=True), npt.NDArray[np.float64])
+assert_type(np.percentile(AR_f8, [50], out=AR_c16), npt.NDArray[np.complex128])
+
+# quantile
+assert_type(np.quantile(AR_f8, 0.50), np.float64)
+assert_type(np.quantile(AR_f8, 0.50, axis=1), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_f8, 0.50, axis=(1, 0)), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_f8, 0.50, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_f8, 0.50, axis=0, keepdims=True), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_c16, 0.50), np.complex128)
+assert_type(np.quantile(AR_m, 0.50), np.timedelta64)
+assert_type(np.quantile(AR_M, 0.50, overwrite_input=True), np.datetime64)
+assert_type(np.quantile(AR_O, 0.50), Any)
+assert_type(np.quantile(AR_f8, [0.50]), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_f8, [0.50], axis=1), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_f8, [0.50], keepdims=True), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_c16, [0.50]), npt.NDArray[np.complex128])
+assert_type(np.quantile(AR_m, [0.50]), npt.NDArray[np.timedelta64])
+assert_type(np.quantile(AR_M, [0.50], method="nearest"), npt.NDArray[np.datetime64])
+assert_type(np.quantile(AR_O, [0.50]), npt.NDArray[np.object_])
+assert_type(np.quantile(AR_f8, [0.50], keepdims=True), npt.NDArray[np.float64])
+assert_type(np.quantile(AR_f8, [0.50], out=AR_c16), npt.NDArray[np.complex128])
+
+# trapezoid
+assert_type(np.trapezoid(AR_LIKE_f8), np.float64)
+assert_type(np.trapezoid(AR_LIKE_f8, AR_LIKE_f8), np.float64)
+assert_type(np.trapezoid(AR_LIKE_c16), np.complex128)
+assert_type(np.trapezoid(AR_LIKE_c16, AR_LIKE_f8), np.complex128)
+assert_type(np.trapezoid(AR_LIKE_f8, AR_LIKE_c16), np.complex128)
+assert_type(np.trapezoid(AR_LIKE_O), float)
+assert_type(np.trapezoid(AR_LIKE_O, AR_LIKE_f8), float)
+assert_type(np.trapezoid(AR_f8), np.float64 | npt.NDArray[np.float64])
+assert_type(np.trapezoid(AR_f8, AR_f8), np.float64 | npt.NDArray[np.float64])
+assert_type(np.trapezoid(AR_c16), np.complex128 | npt.NDArray[np.complex128])
+assert_type(np.trapezoid(AR_c16, AR_c16), np.complex128 | npt.NDArray[np.complex128])
+assert_type(np.trapezoid(AR_m), np.timedelta64 | npt.NDArray[np.timedelta64])
+assert_type(np.trapezoid(AR_O), npt.NDArray[np.object_] | Any)
+assert_type(np.trapezoid(AR_O, AR_LIKE_f8), npt.NDArray[np.object_] | Any)
+
+# meshgrid
+assert_type(np.meshgrid(), tuple[()])
+assert_type(
+    np.meshgrid(AR_f8),
+    tuple[
+        np.ndarray[tuple[int], np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.meshgrid(AR_c16, indexing="ij"),
+    tuple[
+        np.ndarray[tuple[int], np.dtype[np.complex128]],
+    ],
+)
+assert_type(
+    np.meshgrid(AR_i8, AR_f8, copy=False),
+    tuple[
+        np.ndarray[tuple[int, int], np.dtype[np.int64]],
+        np.ndarray[tuple[int, int], np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.meshgrid(AR_LIKE_f8, AR_f8),
+    tuple[
+        np.ndarray[tuple[int, int]],
+        np.ndarray[tuple[int, int], np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.meshgrid(AR_f8, AR_LIKE_f8),
+    tuple[
+        np.ndarray[tuple[int, int], np.dtype[np.float64]],
+        np.ndarray[tuple[int, int]],
+    ],
+)
+assert_type(
+    np.meshgrid(AR_LIKE_f8, AR_LIKE_f8),
+    tuple[
+        np.ndarray[tuple[int, int]],
+        np.ndarray[tuple[int, int]],
+    ],
+)
+assert_type(
+    np.meshgrid(AR_f8, AR_i8, AR_c16),
+    tuple[
+        np.ndarray[tuple[int, int, int], np.dtype[np.float64]],
+        np.ndarray[tuple[int, int, int], np.dtype[np.int64]],
+        np.ndarray[tuple[int, int, int], np.dtype[np.complex128]],
+    ],
+)
+assert_type(np.meshgrid(AR_f8, AR_f8, AR_f8, AR_f8), tuple[npt.NDArray[np.float64], ...])
+assert_type(np.meshgrid(AR_f8, AR_f8, AR_f8, AR_LIKE_f8), tuple[np.ndarray, ...])
+assert_type(np.meshgrid(*AR_LIKE_f8), tuple[np.ndarray, ...])
+
+# delete
+assert_type(np.delete(AR_f8, np.s_[:5]), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.delete(AR_LIKE_f8, [0, 4, 9], axis=0), np.ndarray)
+
+# insert
+assert_type(np.insert(AR_f8, np.s_[:5], 5), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.insert(AR_LIKE_f8, [0, 4, 9], [0.5, 9.2, 7], axis=0), np.ndarray)
+
+# append
+assert_type(np.append(f8, f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.append(AR_f8, AR_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.append(AR_LIKE_f8, AR_LIKE_c16, axis=0), np.ndarray)
+assert_type(np.append(AR_f8, AR_LIKE_f8, axis=0), np.ndarray)
+
+# digitize
+assert_type(np.digitize(4.5, [1]), np.intp)
+assert_type(np.digitize(AR_f8, [1, 2, 3]), npt.NDArray[np.intp])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_polynomial.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_polynomial.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..4f70917cc7c1a8af7b064abebeb95570080581ce
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_polynomial.pyi
@@ -0,0 +1,147 @@
+from collections.abc import Iterator
+from typing import Any, NoReturn, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_b: npt.NDArray[np.bool]
+AR_u4: npt.NDArray[np.uint32]
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+AR_O: npt.NDArray[np.object_]
+
+poly_obj: np.poly1d
+
+assert_type(poly_obj.variable, str)
+assert_type(poly_obj.order, int)
+assert_type(poly_obj.o, int)
+assert_type(poly_obj.roots, npt.NDArray[Any])
+assert_type(poly_obj.r, npt.NDArray[Any])
+assert_type(poly_obj.coeffs, npt.NDArray[Any])
+assert_type(poly_obj.c, npt.NDArray[Any])
+assert_type(poly_obj.coef, npt.NDArray[Any])
+assert_type(poly_obj.coefficients, npt.NDArray[Any])
+assert_type(poly_obj.__hash__, None)
+
+assert_type(poly_obj(1), Any)
+assert_type(poly_obj([1]), npt.NDArray[Any])
+assert_type(poly_obj(poly_obj), np.poly1d)
+
+assert_type(len(poly_obj), int)
+assert_type(-poly_obj, np.poly1d)
+assert_type(+poly_obj, np.poly1d)
+
+assert_type(poly_obj * 5, np.poly1d)
+assert_type(5 * poly_obj, np.poly1d)
+assert_type(poly_obj + 5, np.poly1d)
+assert_type(5 + poly_obj, np.poly1d)
+assert_type(poly_obj - 5, np.poly1d)
+assert_type(5 - poly_obj, np.poly1d)
+assert_type(poly_obj**1, np.poly1d)
+assert_type(poly_obj**1.0, np.poly1d)
+assert_type(poly_obj / 5, np.poly1d)
+assert_type(5 / poly_obj, np.poly1d)
+
+assert_type(poly_obj[0], Any)
+poly_obj[0] = 5
+assert_type(iter(poly_obj), Iterator[Any])
+assert_type(poly_obj.deriv(), np.poly1d)
+assert_type(poly_obj.integ(), np.poly1d)
+
+assert_type(np.poly(poly_obj), npt.NDArray[np.floating])
+assert_type(np.poly(AR_f8), npt.NDArray[np.floating])
+assert_type(np.poly(AR_c16), npt.NDArray[np.floating])
+
+assert_type(np.polyint(poly_obj), np.poly1d)
+assert_type(np.polyint(AR_f8), npt.NDArray[np.floating])
+assert_type(np.polyint(AR_f8, k=AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.polyint(AR_O, m=2), npt.NDArray[np.object_])
+
+assert_type(np.polyder(poly_obj), np.poly1d)
+assert_type(np.polyder(AR_f8), npt.NDArray[np.floating])
+assert_type(np.polyder(AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.polyder(AR_O, m=2), npt.NDArray[np.object_])
+
+assert_type(np.polyfit(AR_f8, AR_f8, 2), npt.NDArray[np.float64])
+assert_type(
+    np.polyfit(AR_f8, AR_i8, 1, full=True),
+    tuple[
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+        npt.NDArray[np.int32],
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+    ],
+)
+assert_type(
+    np.polyfit(AR_u4, AR_f8, 1.0, cov="unscaled"),
+    tuple[
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+    ],
+)
+assert_type(np.polyfit(AR_c16, AR_f8, 2), npt.NDArray[np.complex128])
+assert_type(
+    np.polyfit(AR_f8, AR_c16, 1, full=True),
+    tuple[
+        npt.NDArray[np.complex128],
+        npt.NDArray[np.float64],
+        npt.NDArray[np.int32],
+        npt.NDArray[np.float64],
+        npt.NDArray[np.float64],
+    ],
+)
+assert_type(
+    np.polyfit(AR_u4, AR_c16, 1.0, cov=True),
+    tuple[
+        npt.NDArray[np.complex128],
+        npt.NDArray[np.complex128],
+    ],
+)
+
+assert_type(np.polyval(AR_b, AR_b), npt.NDArray[np.int64])
+assert_type(np.polyval(AR_u4, AR_b), npt.NDArray[np.unsignedinteger])
+assert_type(np.polyval(AR_i8, AR_i8), npt.NDArray[np.signedinteger])
+assert_type(np.polyval(AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(np.polyval(AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.polyval(AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(np.polyadd(poly_obj, AR_i8), np.poly1d)
+assert_type(np.polyadd(AR_f8, poly_obj), np.poly1d)
+assert_type(np.polyadd(AR_b, AR_b), npt.NDArray[np.bool])
+assert_type(np.polyadd(AR_u4, AR_b), npt.NDArray[np.unsignedinteger])
+assert_type(np.polyadd(AR_i8, AR_i8), npt.NDArray[np.signedinteger])
+assert_type(np.polyadd(AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(np.polyadd(AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.polyadd(AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(np.polysub(poly_obj, AR_i8), np.poly1d)
+assert_type(np.polysub(AR_f8, poly_obj), np.poly1d)
+
+def test_invalid_polysub() -> None:
+    assert_type(np.polysub(AR_b, AR_b), NoReturn)
+
+assert_type(np.polysub(AR_u4, AR_b), npt.NDArray[np.unsignedinteger])
+assert_type(np.polysub(AR_i8, AR_i8), npt.NDArray[np.signedinteger])
+assert_type(np.polysub(AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(np.polysub(AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.polysub(AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(np.polymul(poly_obj, AR_i8), np.poly1d)
+assert_type(np.polymul(AR_f8, poly_obj), np.poly1d)
+assert_type(np.polymul(AR_b, AR_b), npt.NDArray[np.bool])
+assert_type(np.polymul(AR_u4, AR_b), npt.NDArray[np.unsignedinteger])
+assert_type(np.polymul(AR_i8, AR_i8), npt.NDArray[np.signedinteger])
+assert_type(np.polymul(AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(np.polymul(AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(np.polymul(AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(np.polydiv(poly_obj, AR_i8), tuple[np.poly1d, np.poly1d])
+assert_type(np.polydiv(AR_f8, poly_obj), tuple[np.poly1d, np.poly1d])
+assert_type(np.polydiv(AR_b, AR_b), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating]])
+assert_type(np.polydiv(AR_u4, AR_b), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating]])
+assert_type(np.polydiv(AR_i8, AR_i8), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating]])
+assert_type(np.polydiv(AR_f8, AR_i8), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating]])
+assert_type(np.polydiv(AR_i8, AR_c16), tuple[npt.NDArray[np.complexfloating], npt.NDArray[np.complexfloating]])
+assert_type(np.polydiv(AR_O, AR_O), tuple[npt.NDArray[Any], npt.NDArray[Any]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_utils.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_utils.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..754d9c400efbe648d9f256a1b110312ac9667d36
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_utils.pyi
@@ -0,0 +1,17 @@
+from io import StringIO
+from typing import assert_type
+
+import numpy as np
+import numpy.lib.array_utils as array_utils
+import numpy.typing as npt
+
+AR: npt.NDArray[np.float64]
+AR_DICT: dict[str, npt.NDArray[np.float64]]
+FILE: StringIO
+
+def func(a: int) -> bool: ...
+
+assert_type(array_utils.byte_bounds(AR), tuple[int, int])
+assert_type(array_utils.byte_bounds(np.float64()), tuple[int, int])
+
+assert_type(np.info(1, output=FILE), None)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_version.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_version.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..c30f26f6457753d02fd1ffcaa44f29a35fe29056
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/lib_version.pyi
@@ -0,0 +1,20 @@
+from typing import assert_type
+
+from numpy.lib import NumpyVersion
+
+version = NumpyVersion("1.8.0")
+
+assert_type(version.vstring, str)
+assert_type(version.version, str)
+assert_type(version.major, int)
+assert_type(version.minor, int)
+assert_type(version.bugfix, int)
+assert_type(version.pre_release, str)
+assert_type(version.is_devversion, bool)
+
+assert_type(version == version, bool)
+assert_type(version != version, bool)
+assert_type(version < "1.8.0", bool)
+assert_type(version <= version, bool)
+assert_type(version > version, bool)
+assert_type(version >= "1.8.0", bool)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/linalg.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/linalg.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..39c5c0c10a0e87c4f956e8367459e04bbd98d5f6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/linalg.pyi
@@ -0,0 +1,154 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy.linalg._linalg import (
+    EighResult,
+    EigResult,
+    QRResult,
+    SlogdetResult,
+    SVDResult,
+)
+
+float_list_2d: list[list[float]]
+AR_i8: npt.NDArray[np.int64]
+AR_f4: npt.NDArray[np.float32]
+AR_f8: npt.NDArray[np.float64]
+AR_c8: npt.NDArray[np.complex64]
+AR_c16: npt.NDArray[np.complex128]
+AR_O: npt.NDArray[np.object_]
+AR_m: npt.NDArray[np.timedelta64]
+AR_S: npt.NDArray[np.str_]
+AR_b: npt.NDArray[np.bool]
+
+assert_type(np.linalg.tensorsolve(AR_i8, AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.tensorsolve(AR_i8, AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.tensorsolve(AR_c16, AR_f8), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.solve(AR_i8, AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.solve(AR_i8, AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.solve(AR_c16, AR_f8), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.tensorinv(AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.tensorinv(AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.tensorinv(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.inv(AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.inv(AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.inv(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.matrix_power(AR_i8, -1), npt.NDArray[Any])
+assert_type(np.linalg.matrix_power(AR_f8, 0), npt.NDArray[Any])
+assert_type(np.linalg.matrix_power(AR_c16, 1), npt.NDArray[Any])
+assert_type(np.linalg.matrix_power(AR_O, 2), npt.NDArray[Any])
+
+assert_type(np.linalg.cholesky(AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.cholesky(AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.cholesky(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.outer(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.linalg.outer(AR_f8, AR_f8), npt.NDArray[np.float64])
+assert_type(np.linalg.outer(AR_c16, AR_c16), npt.NDArray[np.complex128])
+assert_type(np.linalg.outer(AR_b, AR_b), npt.NDArray[np.bool])
+assert_type(np.linalg.outer(AR_O, AR_O), npt.NDArray[np.object_])
+assert_type(np.linalg.outer(AR_i8, AR_m), npt.NDArray[np.timedelta64])
+
+assert_type(np.linalg.qr(AR_i8), QRResult)
+assert_type(np.linalg.qr(AR_f8), QRResult)
+assert_type(np.linalg.qr(AR_c16), QRResult)
+
+assert_type(np.linalg.eigvals(AR_i8), npt.NDArray[np.float64] | npt.NDArray[np.complex128])
+assert_type(np.linalg.eigvals(AR_f8), npt.NDArray[np.floating] | npt.NDArray[np.complexfloating])
+assert_type(np.linalg.eigvals(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.eigvalsh(AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.eigvalsh(AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.eigvalsh(AR_c16), npt.NDArray[np.floating])
+
+assert_type(np.linalg.eig(AR_i8), EigResult)
+assert_type(np.linalg.eig(AR_f8), EigResult)
+assert_type(np.linalg.eig(AR_c16), EigResult)
+
+assert_type(np.linalg.eigh(AR_i8), EighResult)
+assert_type(np.linalg.eigh(AR_f8), EighResult)
+assert_type(np.linalg.eigh(AR_c16), EighResult)
+
+assert_type(np.linalg.svd(AR_i8), SVDResult)
+assert_type(np.linalg.svd(AR_f8), SVDResult)
+assert_type(np.linalg.svd(AR_c16), SVDResult)
+assert_type(np.linalg.svd(AR_i8, compute_uv=False), npt.NDArray[np.float64])
+assert_type(np.linalg.svd(AR_i8, True, False), npt.NDArray[np.float64])
+assert_type(np.linalg.svd(AR_f8, compute_uv=False), npt.NDArray[np.floating])
+assert_type(np.linalg.svd(AR_c16, compute_uv=False), npt.NDArray[np.floating])
+assert_type(np.linalg.svd(AR_c16, True, False), npt.NDArray[np.floating])
+
+assert_type(np.linalg.svdvals(AR_b), npt.NDArray[np.float64])
+assert_type(np.linalg.svdvals(AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.svdvals(AR_f4), npt.NDArray[np.float32])
+assert_type(np.linalg.svdvals(AR_c8), npt.NDArray[np.float32])
+assert_type(np.linalg.svdvals(AR_f8), npt.NDArray[np.float64])
+assert_type(np.linalg.svdvals(AR_c16), npt.NDArray[np.float64])
+assert_type(np.linalg.svdvals([[1, 2], [3, 4]]), npt.NDArray[np.float64])
+assert_type(np.linalg.svdvals([[1.0, 2.0], [3.0, 4.0]]), npt.NDArray[np.float64])
+assert_type(np.linalg.svdvals([[1j, 2j], [3j, 4j]]), npt.NDArray[np.float64])
+
+assert_type(np.linalg.cond(AR_i8), Any)
+assert_type(np.linalg.cond(AR_f8), Any)
+assert_type(np.linalg.cond(AR_c16), Any)
+
+assert_type(np.linalg.matrix_rank(AR_i8), Any)
+assert_type(np.linalg.matrix_rank(AR_f8), Any)
+assert_type(np.linalg.matrix_rank(AR_c16), Any)
+
+assert_type(np.linalg.pinv(AR_i8), npt.NDArray[np.float64])
+assert_type(np.linalg.pinv(AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.pinv(AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.slogdet(AR_i8), SlogdetResult)
+assert_type(np.linalg.slogdet(AR_f8), SlogdetResult)
+assert_type(np.linalg.slogdet(AR_c16), SlogdetResult)
+
+assert_type(np.linalg.det(AR_i8), Any)
+assert_type(np.linalg.det(AR_f8), Any)
+assert_type(np.linalg.det(AR_c16), Any)
+
+assert_type(np.linalg.lstsq(AR_i8, AR_i8), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64], np.int32, npt.NDArray[np.float64]])
+assert_type(np.linalg.lstsq(AR_i8, AR_f8), tuple[npt.NDArray[np.floating], npt.NDArray[np.floating], np.int32, npt.NDArray[np.floating]])
+assert_type(np.linalg.lstsq(AR_f8, AR_c16), tuple[npt.NDArray[np.complexfloating], npt.NDArray[np.floating], np.int32, npt.NDArray[np.floating]])
+
+assert_type(np.linalg.norm(AR_i8), np.floating)
+assert_type(np.linalg.norm(AR_f8), np.floating)
+assert_type(np.linalg.norm(AR_c16), np.floating)
+assert_type(np.linalg.norm(AR_S), np.floating)
+assert_type(np.linalg.norm(AR_f8, axis=0), Any)
+
+assert_type(np.linalg.matrix_norm(AR_i8), np.floating)
+assert_type(np.linalg.matrix_norm(AR_f8), np.floating)
+assert_type(np.linalg.matrix_norm(AR_c16), np.floating)
+assert_type(np.linalg.matrix_norm(AR_S), np.floating)
+
+assert_type(np.linalg.vector_norm(AR_i8), np.floating)
+assert_type(np.linalg.vector_norm(AR_f8), np.floating)
+assert_type(np.linalg.vector_norm(AR_c16), np.floating)
+assert_type(np.linalg.vector_norm(AR_S), np.floating)
+
+assert_type(np.linalg.tensordot(AR_b, AR_b), npt.NDArray[np.bool])
+assert_type(np.linalg.tensordot(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.linalg.tensordot(AR_f8, AR_f8), npt.NDArray[np.float64])
+assert_type(np.linalg.tensordot(AR_c16, AR_c16), npt.NDArray[np.complex128])
+assert_type(np.linalg.tensordot(AR_m, AR_m), npt.NDArray[np.timedelta64])
+assert_type(np.linalg.tensordot(AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(np.linalg.multi_dot([AR_i8, AR_i8]), Any)
+assert_type(np.linalg.multi_dot([AR_i8, AR_f8]), Any)
+assert_type(np.linalg.multi_dot([AR_f8, AR_c16]), Any)
+assert_type(np.linalg.multi_dot([AR_O, AR_O]), Any)
+assert_type(np.linalg.multi_dot([AR_m, AR_m]), Any)
+
+assert_type(np.linalg.cross(AR_i8, AR_i8), npt.NDArray[np.signedinteger])
+assert_type(np.linalg.cross(AR_f8, AR_f8), npt.NDArray[np.floating])
+assert_type(np.linalg.cross(AR_c16, AR_c16), npt.NDArray[np.complexfloating])
+
+assert_type(np.linalg.matmul(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.linalg.matmul(AR_f8, AR_f8), npt.NDArray[np.float64])
+assert_type(np.linalg.matmul(AR_c16, AR_c16), npt.NDArray[np.complex128])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ma.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ma.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..330a9d5557864838ee4fe5633d767c9ca96beeae
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ma.pyi
@@ -0,0 +1,1098 @@
+from typing import Any, Generic, Literal, NoReturn, TypeAlias, TypeVar, assert_type
+
+import numpy as np
+from numpy import dtype, generic
+from numpy._typing import NDArray, _AnyShape
+
+_ScalarT = TypeVar("_ScalarT", bound=generic)
+_ScalarT_co = TypeVar("_ScalarT_co", bound=generic, covariant=True)
+
+MaskedArray: TypeAlias = np.ma.MaskedArray[_AnyShape, dtype[_ScalarT]]
+_NoMaskType: TypeAlias = np.bool[Literal[False]]
+_Array1D: TypeAlias = np.ndarray[tuple[int], np.dtype[_ScalarT]]
+
+class MaskedArraySubclass(MaskedArray[_ScalarT_co]): ...
+
+class IntoMaskedArraySubClass(Generic[_ScalarT_co]):
+    def __array__(self) -> MaskedArraySubclass[_ScalarT_co]: ...
+
+MaskedArraySubclassC: TypeAlias = MaskedArraySubclass[np.complex128]
+
+AR_b: NDArray[np.bool]
+AR_f4: NDArray[np.float32]
+AR_i8: NDArray[np.int64]
+AR_u4: NDArray[np.uint32]
+AR_dt64: NDArray[np.datetime64]
+AR_td64: NDArray[np.timedelta64]
+AR_o: NDArray[np.timedelta64]
+
+AR_LIKE_b: list[bool]
+AR_LIKE_u: list[np.uint32]
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+AR_LIKE_c: list[complex]
+AR_LIKE_td64: list[np.timedelta64]
+AR_LIKE_dt64: list[np.datetime64]
+AR_LIKE_o: list[np.object_]
+AR_number: NDArray[np.number]
+
+MAR_c8: MaskedArray[np.complex64]
+MAR_c16: MaskedArray[np.complex128]
+MAR_b: MaskedArray[np.bool]
+MAR_f4: MaskedArray[np.float32]
+MAR_f8: MaskedArray[np.float64]
+MAR_i8: MaskedArray[np.int64]
+MAR_u4: MaskedArray[np.uint32]
+MAR_dt64: MaskedArray[np.datetime64]
+MAR_td64: MaskedArray[np.timedelta64]
+MAR_o: MaskedArray[np.object_]
+MAR_s: MaskedArray[np.str_]
+MAR_byte: MaskedArray[np.bytes_]
+MAR_V: MaskedArray[np.void]
+MAR_floating: MaskedArray[np.floating]
+MAR_number: MaskedArray[np.number]
+
+MAR_subclass: MaskedArraySubclassC
+MAR_into_subclass: IntoMaskedArraySubClass[np.float32]
+
+MAR_1d: np.ma.MaskedArray[tuple[int], np.dtype]
+MAR_2d_f4: np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]]
+MAR_2d_V: np.ma.MaskedArray[tuple[int, int], np.dtype[np.void]]
+
+b: np.bool
+f4: np.float32
+f: float
+i: int
+
+assert_type(MAR_1d.shape, tuple[int])
+
+assert_type(MAR_f4.dtype, np.dtype[np.float32])
+
+assert_type(int(MAR_i8), int)
+assert_type(float(MAR_f4), float)
+
+assert_type(np.ma.min(MAR_b), np.bool)
+assert_type(np.ma.min(MAR_f4), np.float32)
+assert_type(np.ma.min(MAR_b, axis=0), Any)
+assert_type(np.ma.min(MAR_f4, axis=0), Any)
+assert_type(np.ma.min(MAR_b, keepdims=True), Any)
+assert_type(np.ma.min(MAR_f4, keepdims=True), Any)
+assert_type(np.ma.min(MAR_f4, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.min(MAR_f4, 0, MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.min(MAR_f4, None, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.min(), np.bool)
+assert_type(MAR_f4.min(), np.float32)
+assert_type(MAR_b.min(axis=0), Any)
+assert_type(MAR_f4.min(axis=0), Any)
+assert_type(MAR_b.min(keepdims=True), Any)
+assert_type(MAR_f4.min(keepdims=True), Any)
+assert_type(MAR_f4.min(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.min(0, MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.min(None, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(np.ma.max(MAR_b), np.bool)
+assert_type(np.ma.max(MAR_f4), np.float32)
+assert_type(np.ma.max(MAR_b, axis=0), Any)
+assert_type(np.ma.max(MAR_f4, axis=0), Any)
+assert_type(np.ma.max(MAR_b, keepdims=True), Any)
+assert_type(np.ma.max(MAR_f4, keepdims=True), Any)
+assert_type(np.ma.max(MAR_f4, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.max(MAR_f4, 0, MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.max(MAR_f4, None, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.max(), np.bool)
+assert_type(MAR_f4.max(), np.float32)
+assert_type(MAR_b.max(axis=0), Any)
+assert_type(MAR_f4.max(axis=0), Any)
+assert_type(MAR_b.max(keepdims=True), Any)
+assert_type(MAR_f4.max(keepdims=True), Any)
+assert_type(MAR_f4.max(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.max(0, MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.max(None, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(np.ma.ptp(MAR_b), np.bool)
+assert_type(np.ma.ptp(MAR_f4), np.float32)
+assert_type(np.ma.ptp(MAR_b, axis=0), Any)
+assert_type(np.ma.ptp(MAR_f4, axis=0), Any)
+assert_type(np.ma.ptp(MAR_b, keepdims=True), Any)
+assert_type(np.ma.ptp(MAR_f4, keepdims=True), Any)
+assert_type(np.ma.ptp(MAR_f4, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.ptp(MAR_f4, 0, MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.ptp(MAR_f4, None, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.ptp(), np.bool)
+assert_type(MAR_f4.ptp(), np.float32)
+assert_type(MAR_b.ptp(axis=0), Any)
+assert_type(MAR_f4.ptp(axis=0), Any)
+assert_type(MAR_b.ptp(keepdims=True), Any)
+assert_type(MAR_f4.ptp(keepdims=True), Any)
+assert_type(MAR_f4.ptp(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.ptp(0, MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.ptp(None, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.argmin(), np.intp)
+assert_type(MAR_f4.argmin(), np.intp)
+assert_type(MAR_f4.argmax(fill_value=6.28318, keepdims=False), np.intp)
+assert_type(MAR_b.argmin(axis=0), Any)
+assert_type(MAR_f4.argmin(axis=0), Any)
+assert_type(MAR_b.argmin(keepdims=True), Any)
+assert_type(MAR_f4.argmin(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.argmin(None, None, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(np.ma.argmin(MAR_b), np.intp)
+assert_type(np.ma.argmin(MAR_f4), np.intp)
+assert_type(np.ma.argmin(MAR_f4, fill_value=6.28318, keepdims=False), np.intp)
+assert_type(np.ma.argmin(MAR_b, axis=0), Any)
+assert_type(np.ma.argmin(MAR_f4, axis=0), Any)
+assert_type(np.ma.argmin(MAR_b, keepdims=True), Any)
+assert_type(np.ma.argmin(MAR_f4, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.argmin(MAR_f4, None, None, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.argmax(), np.intp)
+assert_type(MAR_f4.argmax(), np.intp)
+assert_type(MAR_f4.argmax(fill_value=6.28318, keepdims=False), np.intp)
+assert_type(MAR_b.argmax(axis=0), Any)
+assert_type(MAR_f4.argmax(axis=0), Any)
+assert_type(MAR_b.argmax(keepdims=True), Any)
+assert_type(MAR_f4.argmax(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.argmax(None, None, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(np.ma.argmax(MAR_b), np.intp)
+assert_type(np.ma.argmax(MAR_f4), np.intp)
+assert_type(np.ma.argmax(MAR_f4, fill_value=6.28318, keepdims=False), np.intp)
+assert_type(np.ma.argmax(MAR_b, axis=0), Any)
+assert_type(np.ma.argmax(MAR_f4, axis=0), Any)
+assert_type(np.ma.argmax(MAR_b, keepdims=True), Any)
+assert_type(np.ma.argmax(MAR_f4, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.argmax(MAR_f4, None, None, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.all(), np.bool)
+assert_type(MAR_f4.all(), np.bool)
+assert_type(MAR_f4.all(keepdims=False), np.bool)
+assert_type(MAR_b.all(axis=0), np.bool | MaskedArray[np.bool])
+assert_type(MAR_b.all(axis=0, keepdims=True), MaskedArray[np.bool])
+assert_type(MAR_b.all(0, None, True), MaskedArray[np.bool])
+assert_type(MAR_f4.all(axis=0), np.bool | MaskedArray[np.bool])
+assert_type(MAR_b.all(keepdims=True), MaskedArray[np.bool])
+assert_type(MAR_f4.all(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.all(None, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_b.any(), np.bool)
+assert_type(MAR_f4.any(), np.bool)
+assert_type(MAR_f4.any(keepdims=False), np.bool)
+assert_type(MAR_b.any(axis=0), np.bool | MaskedArray[np.bool])
+assert_type(MAR_b.any(axis=0, keepdims=True), MaskedArray[np.bool])
+assert_type(MAR_b.any(0, None, True), MaskedArray[np.bool])
+assert_type(MAR_f4.any(axis=0), np.bool | MaskedArray[np.bool])
+assert_type(MAR_b.any(keepdims=True), MaskedArray[np.bool])
+assert_type(MAR_f4.any(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.any(None, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f4.sort(), None)
+assert_type(MAR_f4.sort(axis=0, kind="quicksort", order="K", endwith=False, fill_value=42., stable=False), None)
+
+assert_type(np.ma.sort(MAR_f4), MaskedArray[np.float32])
+assert_type(np.ma.sort(MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.sort([[0, 1], [2, 3]]), NDArray[Any])
+assert_type(np.ma.sort(AR_f4), NDArray[np.float32])
+
+assert_type(MAR_f8.take(0), np.float64)
+assert_type(MAR_1d.take(0), Any)
+assert_type(MAR_f8.take([0]), MaskedArray[np.float64])
+assert_type(MAR_f8.take(0, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f8.take([0], out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(np.ma.take(f, 0), Any)
+assert_type(np.ma.take(f4, 0), np.float32)
+assert_type(np.ma.take(MAR_f8, 0), np.float64)
+assert_type(np.ma.take(AR_f4, 0), np.float32)
+assert_type(np.ma.take(MAR_1d, 0), Any)
+assert_type(np.ma.take(MAR_f8, [0]), MaskedArray[np.float64])
+assert_type(np.ma.take(AR_f4, [0]), MaskedArray[np.float32])
+assert_type(np.ma.take(MAR_f8, 0, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.take(MAR_f8, [0], out=MAR_subclass), MaskedArraySubclassC)
+assert_type(np.ma.take([1], [0]), MaskedArray[Any])
+assert_type(np.ma.take(np.eye(2), 1, axis=0), MaskedArray[np.float64])
+
+assert_type(MAR_f4.partition(1), None)
+assert_type(MAR_V.partition(1, axis=0, kind="introselect", order="K"), None)
+
+assert_type(MAR_f4.argpartition(1), MaskedArray[np.intp])
+assert_type(MAR_1d.argpartition(1, axis=0, kind="introselect", order="K"), MaskedArray[np.intp])
+
+assert_type(np.ma.ndim(f4), int)
+assert_type(np.ma.ndim(MAR_b), int)
+assert_type(np.ma.ndim(AR_f4), int)
+
+assert_type(np.ma.size(b), int)
+assert_type(np.ma.size(MAR_f4, axis=0), int)
+assert_type(np.ma.size(AR_f4), int)
+
+assert_type(np.ma.is_masked(MAR_f4), bool)
+
+assert_type(MAR_f4.ids(), tuple[int, int])
+
+assert_type(MAR_f4.iscontiguous(), bool)
+
+assert_type(MAR_f4 >= 3, MaskedArray[np.bool])
+assert_type(MAR_i8 >= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_b >= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_td64 >= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_dt64 >= AR_dt64, MaskedArray[np.bool])
+assert_type(MAR_o >= AR_o, MaskedArray[np.bool])
+assert_type(MAR_1d >= 0, MaskedArray[np.bool])
+assert_type(MAR_s >= MAR_s, MaskedArray[np.bool])
+assert_type(MAR_byte >= MAR_byte, MaskedArray[np.bool])
+
+assert_type(MAR_f4 > 3, MaskedArray[np.bool])
+assert_type(MAR_i8 > AR_td64, MaskedArray[np.bool])
+assert_type(MAR_b > AR_td64, MaskedArray[np.bool])
+assert_type(MAR_td64 > AR_td64, MaskedArray[np.bool])
+assert_type(MAR_dt64 > AR_dt64, MaskedArray[np.bool])
+assert_type(MAR_o > AR_o, MaskedArray[np.bool])
+assert_type(MAR_1d > 0, MaskedArray[np.bool])
+assert_type(MAR_s > MAR_s, MaskedArray[np.bool])
+assert_type(MAR_byte > MAR_byte, MaskedArray[np.bool])
+
+assert_type(MAR_f4 <= 3, MaskedArray[np.bool])
+assert_type(MAR_i8 <= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_b <= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_td64 <= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_dt64 <= AR_dt64, MaskedArray[np.bool])
+assert_type(MAR_o <= AR_o, MaskedArray[np.bool])
+assert_type(MAR_1d <= 0, MaskedArray[np.bool])
+assert_type(MAR_s <= MAR_s, MaskedArray[np.bool])
+assert_type(MAR_byte <= MAR_byte, MaskedArray[np.bool])
+
+assert_type(MAR_f4 < 3, MaskedArray[np.bool])
+assert_type(MAR_i8 < AR_td64, MaskedArray[np.bool])
+assert_type(MAR_b < AR_td64, MaskedArray[np.bool])
+assert_type(MAR_td64 < AR_td64, MaskedArray[np.bool])
+assert_type(MAR_dt64 < AR_dt64, MaskedArray[np.bool])
+assert_type(MAR_o < AR_o, MaskedArray[np.bool])
+assert_type(MAR_1d < 0, MaskedArray[np.bool])
+assert_type(MAR_s < MAR_s, MaskedArray[np.bool])
+assert_type(MAR_byte < MAR_byte, MaskedArray[np.bool])
+
+assert_type(MAR_f4 <= 3, MaskedArray[np.bool])
+assert_type(MAR_i8 <= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_b <= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_td64 <= AR_td64, MaskedArray[np.bool])
+assert_type(MAR_dt64 <= AR_dt64, MaskedArray[np.bool])
+assert_type(MAR_o <= AR_o, MaskedArray[np.bool])
+assert_type(MAR_1d <= 0, MaskedArray[np.bool])
+assert_type(MAR_s <= MAR_s, MaskedArray[np.bool])
+assert_type(MAR_byte <= MAR_byte, MaskedArray[np.bool])
+
+assert_type(MAR_byte.count(), int)
+assert_type(MAR_f4.count(axis=None), int)
+assert_type(MAR_f4.count(axis=0), NDArray[np.int_])
+assert_type(MAR_b.count(axis=(0, 1)), NDArray[np.int_])
+assert_type(MAR_o.count(keepdims=True), NDArray[np.int_])
+assert_type(MAR_o.count(axis=None, keepdims=True), NDArray[np.int_])
+assert_type(MAR_o.count(None, True), NDArray[np.int_])
+
+assert_type(np.ma.count(MAR_byte), int)
+assert_type(np.ma.count(MAR_byte, axis=None), int)
+assert_type(np.ma.count(MAR_f4, axis=0), NDArray[np.int_])
+assert_type(np.ma.count(MAR_b, axis=(0, 1)), NDArray[np.int_])
+assert_type(np.ma.count(MAR_o, keepdims=True), NDArray[np.int_])
+assert_type(np.ma.count(MAR_o, axis=None, keepdims=True), NDArray[np.int_])
+assert_type(np.ma.count(MAR_o, None, True), NDArray[np.int_])
+
+assert_type(MAR_f4.compressed(), np.ndarray[tuple[int], np.dtype[np.float32]])
+
+assert_type(MAR_f4.compress([True, False]), np.ma.MaskedArray[tuple[int], np.dtype[np.float32]])
+assert_type(MAR_f4.compress([True, False], axis=0), MaskedArray[np.float32])
+assert_type(MAR_f4.compress([True, False], axis=0, out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f4.compress([True, False], 0, MAR_subclass), MaskedArraySubclassC)
+
+assert_type(np.ma.compressed(MAR_i8), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.ma.compressed([[1, 2, 3]]), np.ndarray[tuple[int], np.dtype])
+
+assert_type(MAR_f4.put([0, 4, 8], [10, 20, 30]), None)
+assert_type(MAR_f4.put(4, 999), None)
+assert_type(MAR_f4.put(4, 999, mode="clip"), None)
+
+assert_type(MAR_c8.__array_wrap__(AR_b), MaskedArray[np.bool])
+
+assert_type(np.ma.put(MAR_f4, [0, 4, 8], [10, 20, 30]), None)
+assert_type(np.ma.put(MAR_f4, 4, 999), None)
+assert_type(np.ma.put(MAR_f4, 4, 999, mode="clip"), None)
+
+assert_type(np.ma.putmask(MAR_f4, [True, False], [0, 1]), None)
+assert_type(np.ma.putmask(MAR_f4, np.False_, [0, 1]), None)
+
+assert_type(MAR_f4.filled(float("nan")), NDArray[np.float32])
+assert_type(MAR_i8.filled(), NDArray[np.int64])
+assert_type(MAR_1d.filled(), np.ndarray[tuple[int], np.dtype])
+
+assert_type(np.ma.filled(MAR_f4, float("nan")), NDArray[np.float32])
+assert_type(np.ma.filled([[1, 2, 3]]), NDArray[Any])
+# PyRight detects this one correctly, but mypy doesn't.
+# https://github.com/numpy/numpy/pull/28742#discussion_r2048968375
+assert_type(np.ma.filled(MAR_1d), np.ndarray[tuple[int], np.dtype])  # type: ignore[assert-type]
+
+assert_type(MAR_b.repeat(3), np.ma.MaskedArray[tuple[int], np.dtype[np.bool]])
+assert_type(MAR_2d_f4.repeat(MAR_i8), np.ma.MaskedArray[tuple[int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.repeat(MAR_i8, axis=None), np.ma.MaskedArray[tuple[int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.repeat(MAR_i8, axis=0), MaskedArray[np.float32])
+
+assert_type(np.ma.allequal(AR_f4, MAR_f4), bool)
+assert_type(np.ma.allequal(AR_f4, MAR_f4, fill_value=False), bool)
+
+assert_type(np.ma.allclose(AR_f4, MAR_f4), bool)
+assert_type(np.ma.allclose(AR_f4, MAR_f4, masked_equal=False), bool)
+assert_type(np.ma.allclose(AR_f4, MAR_f4, rtol=.4, atol=.3), bool)
+
+assert_type(MAR_2d_f4.ravel(), np.ma.MaskedArray[tuple[int], np.dtype[np.float32]])
+assert_type(MAR_1d.ravel(order="A"), np.ma.MaskedArray[tuple[int], np.dtype[Any]])
+
+assert_type(np.ma.getmask(MAR_f4), NDArray[np.bool] | _NoMaskType)
+# PyRight detects this one correctly, but mypy doesn't:
+# `Revealed type is "Union[numpy.ndarray[Any, Any], numpy.bool[Any]]"`
+assert_type(np.ma.getmask(MAR_1d), np.ndarray[tuple[int], np.dtype[np.bool]] | np.bool)  # type: ignore[assert-type]
+assert_type(np.ma.getmask(MAR_2d_f4), np.ndarray[tuple[int, int], np.dtype[np.bool]] | _NoMaskType)
+assert_type(np.ma.getmask([1, 2]), NDArray[np.bool] | _NoMaskType)
+assert_type(np.ma.getmask(np.int64(1)), _NoMaskType)
+
+assert_type(np.ma.is_mask(MAR_1d), bool)
+assert_type(np.ma.is_mask(AR_b), bool)
+
+def func(x: object) -> None:
+    if np.ma.is_mask(x):
+        assert_type(x, NDArray[np.bool])
+    else:
+        assert_type(x, object)
+
+assert_type(MAR_2d_f4.mT, np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+
+assert_type(MAR_c16.real, MaskedArray[np.float64])
+assert_type(MAR_c16.imag, MaskedArray[np.float64])
+
+assert_type(MAR_2d_f4.baseclass, type[NDArray[Any]])
+
+assert_type(MAR_b.swapaxes(0, 1), MaskedArray[np.bool])
+assert_type(MAR_2d_f4.swapaxes(1, 0), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+
+assert_type(MAR_2d_f4[AR_i8], MaskedArray[np.float32])
+assert_type(MAR_2d_f4[[1, 2, 3]], MaskedArray[np.float32])
+assert_type(MAR_2d_f4[1:], MaskedArray[np.float32])
+assert_type(MAR_2d_f4[:], MaskedArray[np.float32])
+assert_type(MAR_2d_f4[0, 0], Any)
+assert_type(MAR_2d_f4[:, np.newaxis], MaskedArray[np.float32])
+assert_type(MAR_2d_f4[..., -1], MaskedArray[np.float32])
+assert_type(MAR_2d_V["field_0"], np.ma.MaskedArray[tuple[int, int], np.dtype])
+assert_type(MAR_2d_V[["field_0", "field_1"]], np.ma.MaskedArray[tuple[int, int], np.dtype[np.void]])
+
+assert_type(np.ma.nomask, np.bool[Literal[False]])
+assert_type(np.ma.MaskType, type[np.bool])
+
+assert_type(MAR_1d.__setmask__([True, False]), None)
+assert_type(MAR_1d.__setmask__(np.False_), None)
+
+assert_type(MAR_2d_f4.harden_mask(), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_i8.harden_mask(), MaskedArray[np.int64])
+assert_type(MAR_2d_f4.soften_mask(), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_i8.soften_mask(), MaskedArray[np.int64])
+assert_type(MAR_f4.unshare_mask(), MaskedArray[np.float32])
+assert_type(MAR_b.shrink_mask(), MaskedArray[np.bool_])
+
+assert_type(MAR_i8.hardmask, bool)
+assert_type(MAR_i8.sharedmask, bool)
+
+assert_type(MAR_i8.recordmask, np.ma.MaskType | NDArray[np.ma.MaskType])
+assert_type(MAR_2d_f4.recordmask, np.ma.MaskType | np.ndarray[tuple[int, int], np.dtype[np.ma.MaskType]])
+
+assert_type(MAR_2d_f4.anom(), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.anom(axis=0, dtype=np.float16), np.ma.MaskedArray[tuple[int, int], np.dtype])
+assert_type(MAR_2d_f4.anom(0, np.float16), np.ma.MaskedArray[tuple[int, int], np.dtype])
+assert_type(MAR_2d_f4.anom(0, "float16"), np.ma.MaskedArray[tuple[int, int], np.dtype])
+
+assert_type(MAR_i8.fill_value, np.int64)
+
+assert_type(MAR_b.transpose(), MaskedArray[np.bool])
+assert_type(MAR_2d_f4.transpose(), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.transpose(1, 0), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.transpose((1, 0)), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_b.T, MaskedArray[np.bool])
+assert_type(MAR_2d_f4.T, np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+
+assert_type(MAR_2d_f4.dot(1), MaskedArray[Any])
+assert_type(MAR_2d_f4.dot([1]), MaskedArray[Any])
+assert_type(MAR_2d_f4.dot(1, out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_2d_f4.nonzero(), tuple[_Array1D[np.intp], ...])
+assert_type(MAR_2d_f4.nonzero()[0], _Array1D[np.intp])
+
+assert_type(MAR_f8.trace(), Any)
+assert_type(MAR_f8.trace(out=MAR_subclass), MaskedArraySubclassC)
+assert_type(MAR_f8.trace(out=MAR_subclass, dtype=None), MaskedArraySubclassC)
+
+assert_type(MAR_f8.round(), MaskedArray[np.float64])
+assert_type(MAR_f8.round(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_i8.reshape(None), MaskedArray[np.int64])
+assert_type(MAR_f8.reshape(-1), np.ma.MaskedArray[tuple[int], np.dtype[np.float64]])
+assert_type(MAR_c8.reshape(2, 3, 4, 5), np.ma.MaskedArray[tuple[int, int, int, int], np.dtype[np.complex64]])
+assert_type(MAR_td64.reshape(()), np.ma.MaskedArray[tuple[()], np.dtype[np.timedelta64]])
+assert_type(MAR_s.reshape([]), np.ma.MaskedArray[tuple[()], np.dtype[np.str_]])
+assert_type(MAR_V.reshape((480, 720, 4)), np.ma.MaskedArray[tuple[int, int, int], np.dtype[np.void]])
+
+assert_type(MAR_f8.cumprod(), MaskedArray[Any])
+assert_type(MAR_f8.cumprod(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f8.cumsum(), MaskedArray[Any])
+assert_type(MAR_f8.cumsum(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f8.view(), MaskedArray[np.float64])
+assert_type(MAR_f8.view(dtype=np.float32), MaskedArray[np.float32])
+assert_type(MAR_f8.view(dtype=np.dtype(np.float32)), MaskedArray[np.float32])
+assert_type(MAR_f8.view(dtype=np.float32, fill_value=0), MaskedArray[np.float32])
+assert_type(MAR_f8.view(type=np.ndarray), np.ndarray[Any, Any])
+assert_type(MAR_f8.view(None, np.ndarray), np.ndarray[Any, Any])
+assert_type(MAR_f8.view(dtype=np.ndarray), np.ndarray[Any, Any])
+assert_type(MAR_f8.view(dtype="float32"), MaskedArray[Any])
+assert_type(MAR_f8.view(dtype="float32", type=np.ndarray), np.ndarray[Any, Any])
+assert_type(MAR_2d_f4.view(dtype=np.float16), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float16]])
+assert_type(MAR_2d_f4.view(dtype=np.dtype(np.float16)), np.ma.MaskedArray[tuple[int, int], np.dtype[np.float16]])
+
+assert_type(MAR_f8.__deepcopy__(), MaskedArray[np.float64])
+
+assert_type(MAR_f8.argsort(), MaskedArray[np.intp])
+assert_type(MAR_f8.argsort(axis=0, kind="heap", order=("x", "y")), MaskedArray[np.intp])
+assert_type(MAR_f8.argsort(endwith=True, fill_value=1.5, stable=False), MaskedArray[np.intp])
+
+assert_type(MAR_2d_f4.flat, np.ma.core.MaskedIterator[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.flat.ma, np.ma.MaskedArray[tuple[int, int], np.dtype[np.float32]])
+assert_type(MAR_2d_f4.flat[AR_i8], MaskedArray[np.float32])
+assert_type(MAR_2d_f4.flat[[1, 2, 3]], MaskedArray[np.float32])
+assert_type(MAR_2d_f4.flat[1:], MaskedArray[np.float32])
+assert_type(MAR_2d_f4.flat[:], MaskedArray[np.float32])
+assert_type(MAR_2d_f4.flat[0, 0], Any)
+assert_type(MAR_2d_f4.flat[:, np.newaxis], MaskedArray[np.float32])
+assert_type(MAR_2d_f4.flat[..., -1], MaskedArray[np.float32])
+
+def invalid_resize() -> None:
+    assert_type(MAR_f8.resize((1, 1)), NoReturn)  # type: ignore[arg-type]
+
+assert_type(np.ma.MaskedArray(AR_f4), MaskedArray[np.float32])
+assert_type(np.ma.MaskedArray(np.array([1, 2, 3]), [True, True, False], np.float16), MaskedArray[np.float16])
+assert_type(np.ma.MaskedArray(np.array([1, 2, 3]), dtype=np.float16), MaskedArray[np.float16])
+assert_type(np.ma.MaskedArray(np.array([1, 2, 3]), copy=True), MaskedArray[Any])
+# TODO: This one could be made more precise, the return type could be `MaskedArraySubclassC`
+assert_type(np.ma.MaskedArray(MAR_subclass), MaskedArray[np.complex128])
+# TODO: This one could be made more precise, the return type could be `MaskedArraySubclass[np.float32]`
+assert_type(np.ma.MaskedArray(MAR_into_subclass), MaskedArray[np.float32])
+
+# Masked Array addition
+
+assert_type(MAR_b + AR_LIKE_u, MaskedArray[np.uint32])
+assert_type(MAR_b + AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_b + AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_b + AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_b + AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_b + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_u + MAR_b, MaskedArray[np.uint32])
+assert_type(AR_LIKE_i + MAR_b, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f + MAR_b, MaskedArray[np.floating])
+assert_type(AR_LIKE_c + MAR_b, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_td64 + MAR_b, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 + MAR_b, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o + MAR_b, Any)
+
+assert_type(MAR_u4 + AR_LIKE_b, MaskedArray[np.uint32])
+assert_type(MAR_u4 + AR_LIKE_u, MaskedArray[np.unsignedinteger])
+assert_type(MAR_u4 + AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_u4 + AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_u4 + AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_u4 + AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_u4 + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b + MAR_u4, MaskedArray[np.uint32])
+assert_type(AR_LIKE_u + MAR_u4, MaskedArray[np.unsignedinteger])
+assert_type(AR_LIKE_i + MAR_u4, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f + MAR_u4, MaskedArray[np.floating])
+assert_type(AR_LIKE_c + MAR_u4, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_td64 + MAR_u4, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 + MAR_u4, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o + MAR_u4, Any)
+
+assert_type(MAR_i8 + AR_LIKE_b, MaskedArray[np.int64])
+assert_type(MAR_i8 + AR_LIKE_u, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 + AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 + AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_i8 + AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_i8 + AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_i8 + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b + MAR_i8, MaskedArray[np.int64])
+assert_type(AR_LIKE_u + MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_i + MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f + MAR_i8, MaskedArray[np.floating])
+assert_type(AR_LIKE_c + MAR_i8, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_td64 + MAR_i8, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 + MAR_i8, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o + MAR_i8, Any)
+
+assert_type(MAR_f8 + AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_f8 + AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_f8 + AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_f8 + AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_f8 + AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_f8 + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b + MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_u + MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_i + MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_f + MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_c + MAR_f8, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_o + MAR_f8, Any)
+
+assert_type(MAR_c16 + AR_LIKE_b, MaskedArray[np.complex128])
+assert_type(MAR_c16 + AR_LIKE_u, MaskedArray[np.complex128])
+assert_type(MAR_c16 + AR_LIKE_i, MaskedArray[np.complex128])
+assert_type(MAR_c16 + AR_LIKE_f, MaskedArray[np.complex128])
+assert_type(MAR_c16 + AR_LIKE_c, MaskedArray[np.complex128])
+assert_type(MAR_c16 + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b + MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_u + MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_i + MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_f + MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_c + MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_o + MAR_c16, Any)
+
+assert_type(MAR_td64 + AR_LIKE_b, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 + AR_LIKE_u, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 + AR_LIKE_i, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 + AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b + MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_u + MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_i + MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_td64 + MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 + MAR_td64, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o + MAR_td64, Any)
+
+assert_type(MAR_dt64 + AR_LIKE_b, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 + AR_LIKE_u, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 + AR_LIKE_i, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 + AR_LIKE_td64, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_o + MAR_dt64, Any)
+
+assert_type(MAR_o + AR_LIKE_b, Any)
+assert_type(MAR_o + AR_LIKE_u, Any)
+assert_type(MAR_o + AR_LIKE_i, Any)
+assert_type(MAR_o + AR_LIKE_f, Any)
+assert_type(MAR_o + AR_LIKE_c, Any)
+assert_type(MAR_o + AR_LIKE_td64, Any)
+assert_type(MAR_o + AR_LIKE_dt64, Any)
+assert_type(MAR_o + AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b + MAR_o, Any)
+assert_type(AR_LIKE_u + MAR_o, Any)
+assert_type(AR_LIKE_i + MAR_o, Any)
+assert_type(AR_LIKE_f + MAR_o, Any)
+assert_type(AR_LIKE_c + MAR_o, Any)
+assert_type(AR_LIKE_td64 + MAR_o, Any)
+assert_type(AR_LIKE_dt64 + MAR_o, Any)
+assert_type(AR_LIKE_o + MAR_o, Any)
+
+# Masked Array subtraction
+# Keep in sync with numpy/typing/tests/data/reveal/arithmetic.pyi
+
+assert_type(MAR_number - AR_number, MaskedArray[np.number])
+
+assert_type(MAR_b - AR_LIKE_u, MaskedArray[np.uint32])
+assert_type(MAR_b - AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_b - AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_b - AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_b - AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_b - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_u - MAR_b, MaskedArray[np.uint32])
+assert_type(AR_LIKE_i - MAR_b, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f - MAR_b, MaskedArray[np.floating])
+assert_type(AR_LIKE_c - MAR_b, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_td64 - MAR_b, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 - MAR_b, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o - MAR_b, Any)
+
+assert_type(MAR_u4 - AR_LIKE_b, MaskedArray[np.uint32])
+assert_type(MAR_u4 - AR_LIKE_u, MaskedArray[np.unsignedinteger])
+assert_type(MAR_u4 - AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_u4 - AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_u4 - AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_u4 - AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_u4 - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b - MAR_u4, MaskedArray[np.uint32])
+assert_type(AR_LIKE_u - MAR_u4, MaskedArray[np.unsignedinteger])
+assert_type(AR_LIKE_i - MAR_u4, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f - MAR_u4, MaskedArray[np.floating])
+assert_type(AR_LIKE_c - MAR_u4, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_td64 - MAR_u4, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 - MAR_u4, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o - MAR_u4, Any)
+
+assert_type(MAR_i8 - AR_LIKE_b, MaskedArray[np.int64])
+assert_type(MAR_i8 - AR_LIKE_u, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 - AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 - AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_i8 - AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_i8 - AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_i8 - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b - MAR_i8, MaskedArray[np.int64])
+assert_type(AR_LIKE_u - MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_i - MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f - MAR_i8, MaskedArray[np.floating])
+assert_type(AR_LIKE_c - MAR_i8, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_td64 - MAR_i8, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 - MAR_i8, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o - MAR_i8, Any)
+
+assert_type(MAR_f8 - AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_f8 - AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_f8 - AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_f8 - AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_f8 - AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_f8 - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b - MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_u - MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_i - MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_f - MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_c - MAR_f8, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_o - MAR_f8, Any)
+
+assert_type(MAR_c16 - AR_LIKE_b, MaskedArray[np.complex128])
+assert_type(MAR_c16 - AR_LIKE_u, MaskedArray[np.complex128])
+assert_type(MAR_c16 - AR_LIKE_i, MaskedArray[np.complex128])
+assert_type(MAR_c16 - AR_LIKE_f, MaskedArray[np.complex128])
+assert_type(MAR_c16 - AR_LIKE_c, MaskedArray[np.complex128])
+assert_type(MAR_c16 - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b - MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_u - MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_i - MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_f - MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_c - MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_o - MAR_c16, Any)
+
+assert_type(MAR_td64 - AR_LIKE_b, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 - AR_LIKE_u, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 - AR_LIKE_i, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 - AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b - MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_u - MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_i - MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_td64 - MAR_td64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_dt64 - MAR_td64, MaskedArray[np.datetime64])
+assert_type(AR_LIKE_o - MAR_td64, Any)
+
+assert_type(MAR_dt64 - AR_LIKE_b, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 - AR_LIKE_u, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 - AR_LIKE_i, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 - AR_LIKE_td64, MaskedArray[np.datetime64])
+assert_type(MAR_dt64 - AR_LIKE_dt64, MaskedArray[np.timedelta64])
+assert_type(MAR_dt64 - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_dt64 - MAR_dt64, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o - MAR_dt64, Any)
+
+assert_type(MAR_o - AR_LIKE_b, Any)
+assert_type(MAR_o - AR_LIKE_u, Any)
+assert_type(MAR_o - AR_LIKE_i, Any)
+assert_type(MAR_o - AR_LIKE_f, Any)
+assert_type(MAR_o - AR_LIKE_c, Any)
+assert_type(MAR_o - AR_LIKE_td64, Any)
+assert_type(MAR_o - AR_LIKE_dt64, Any)
+assert_type(MAR_o - AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b - MAR_o, Any)
+assert_type(AR_LIKE_u - MAR_o, Any)
+assert_type(AR_LIKE_i - MAR_o, Any)
+assert_type(AR_LIKE_f - MAR_o, Any)
+assert_type(AR_LIKE_c - MAR_o, Any)
+assert_type(AR_LIKE_td64 - MAR_o, Any)
+assert_type(AR_LIKE_dt64 - MAR_o, Any)
+assert_type(AR_LIKE_o - MAR_o, Any)
+
+# Masked Array multiplication
+
+assert_type(MAR_b * AR_LIKE_u, MaskedArray[np.uint32])
+assert_type(MAR_b * AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_b * AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_b * AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_b * AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_b * AR_LIKE_o, Any)
+
+# Ignore due to https://github.com/python/mypy/issues/19341
+assert_type(AR_LIKE_u * MAR_b, MaskedArray[np.uint32])  # type: ignore[assert-type]
+assert_type(AR_LIKE_i * MAR_b, MaskedArray[np.signedinteger])  # type: ignore[assert-type]
+assert_type(AR_LIKE_f * MAR_b, MaskedArray[np.floating])  # type: ignore[assert-type]
+assert_type(AR_LIKE_c * MAR_b, MaskedArray[np.complexfloating])  # type: ignore[assert-type]
+assert_type(AR_LIKE_td64 * MAR_b, MaskedArray[np.timedelta64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_o * MAR_b, Any)  # type: ignore[assert-type]
+
+assert_type(MAR_u4 * AR_LIKE_b, MaskedArray[np.uint32])
+assert_type(MAR_u4 * AR_LIKE_u, MaskedArray[np.unsignedinteger])
+assert_type(MAR_u4 * AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_u4 * AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_u4 * AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_u4 * AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_u4 * AR_LIKE_o, Any)
+
+assert_type(MAR_i8 * AR_LIKE_b, MaskedArray[np.int64])
+assert_type(MAR_i8 * AR_LIKE_u, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 * AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 * AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_i8 * AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_i8 * AR_LIKE_td64, MaskedArray[np.timedelta64])
+assert_type(MAR_i8 * AR_LIKE_o, Any)
+
+assert_type(MAR_f8 * AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_f8 * AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_f8 * AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_f8 * AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_f8 * AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_f8 * AR_LIKE_o, Any)
+
+# Ignore due to https://github.com/python/mypy/issues/19341
+assert_type(AR_LIKE_b * MAR_f8, MaskedArray[np.float64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_u * MAR_f8, MaskedArray[np.float64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_i * MAR_f8, MaskedArray[np.float64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_f * MAR_f8, MaskedArray[np.float64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_c * MAR_f8, MaskedArray[np.complexfloating])  # type: ignore[assert-type]
+assert_type(AR_LIKE_o * MAR_f8, Any)  # type: ignore[assert-type]
+
+assert_type(MAR_c16 * AR_LIKE_b, MaskedArray[np.complex128])
+assert_type(MAR_c16 * AR_LIKE_u, MaskedArray[np.complex128])
+assert_type(MAR_c16 * AR_LIKE_i, MaskedArray[np.complex128])
+assert_type(MAR_c16 * AR_LIKE_f, MaskedArray[np.complex128])
+assert_type(MAR_c16 * AR_LIKE_c, MaskedArray[np.complex128])
+assert_type(MAR_c16 * AR_LIKE_o, Any)
+
+# Ignore due to https://github.com/python/mypy/issues/19341
+assert_type(AR_LIKE_b * MAR_c16, MaskedArray[np.complex128])  # type: ignore[assert-type]
+assert_type(AR_LIKE_u * MAR_c16, MaskedArray[np.complex128])  # type: ignore[assert-type]
+assert_type(AR_LIKE_i * MAR_c16, MaskedArray[np.complex128])  # type: ignore[assert-type]
+assert_type(AR_LIKE_f * MAR_c16, MaskedArray[np.complex128])  # type: ignore[assert-type]
+assert_type(AR_LIKE_c * MAR_c16, MaskedArray[np.complex128])  # type: ignore[assert-type]
+assert_type(AR_LIKE_o * MAR_c16, Any)  # type: ignore[assert-type]
+
+assert_type(MAR_td64 * AR_LIKE_b, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 * AR_LIKE_u, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 * AR_LIKE_i, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 * AR_LIKE_o, Any)
+
+# Ignore due to https://github.com/python/mypy/issues/19341
+assert_type(AR_LIKE_b * MAR_td64, MaskedArray[np.timedelta64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_u * MAR_td64, MaskedArray[np.timedelta64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_i * MAR_td64, MaskedArray[np.timedelta64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_td64 * MAR_td64, MaskedArray[np.timedelta64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_dt64 * MAR_td64, MaskedArray[np.datetime64])  # type: ignore[assert-type]
+assert_type(AR_LIKE_o * MAR_td64, Any)  # type: ignore[assert-type]
+
+assert_type(AR_LIKE_o * MAR_dt64, Any)  # type: ignore[assert-type]
+
+assert_type(MAR_o * AR_LIKE_b, Any)
+assert_type(MAR_o * AR_LIKE_u, Any)
+assert_type(MAR_o * AR_LIKE_i, Any)
+assert_type(MAR_o * AR_LIKE_f, Any)
+assert_type(MAR_o * AR_LIKE_c, Any)
+assert_type(MAR_o * AR_LIKE_td64, Any)
+assert_type(MAR_o * AR_LIKE_dt64, Any)
+assert_type(MAR_o * AR_LIKE_o, Any)
+
+# Ignore due to https://github.com/python/mypy/issues/19341
+assert_type(AR_LIKE_b * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_u * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_i * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_f * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_c * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_td64 * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_dt64 * MAR_o, Any)  # type: ignore[assert-type]
+assert_type(AR_LIKE_o * MAR_o, Any)  # type: ignore[assert-type]
+
+assert_type(MAR_f8.sum(), Any)
+assert_type(MAR_f8.sum(axis=0), Any)
+assert_type(MAR_f8.sum(keepdims=True), Any)
+assert_type(MAR_f8.sum(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f8.std(), Any)
+assert_type(MAR_f8.std(axis=0), Any)
+assert_type(MAR_f8.std(keepdims=True, mean=0.), Any)
+assert_type(MAR_f8.std(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f8.var(), Any)
+assert_type(MAR_f8.var(axis=0), Any)
+assert_type(MAR_f8.var(keepdims=True, mean=0.), Any)
+assert_type(MAR_f8.var(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f8.mean(), Any)
+assert_type(MAR_f8.mean(axis=0), Any)
+assert_type(MAR_f8.mean(keepdims=True), Any)
+assert_type(MAR_f8.mean(out=MAR_subclass), MaskedArraySubclassC)
+
+assert_type(MAR_f8.prod(), Any)
+assert_type(MAR_f8.prod(axis=0), Any)
+assert_type(MAR_f8.prod(keepdims=True), Any)
+assert_type(MAR_f8.prod(out=MAR_subclass), MaskedArraySubclassC)
+
+# MaskedArray "true" division
+
+assert_type(MAR_f8 / b, MaskedArray[np.float64])
+assert_type(MAR_f8 / i, MaskedArray[np.float64])
+assert_type(MAR_f8 / f, MaskedArray[np.float64])
+
+assert_type(b / MAR_f8, MaskedArray[np.float64])
+assert_type(i / MAR_f8, MaskedArray[np.float64])
+assert_type(f / MAR_f8, MaskedArray[np.float64])
+
+assert_type(MAR_b / AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_b / AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_b / AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_b / AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_b / AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b / MAR_b, MaskedArray[np.float64])
+assert_type(AR_LIKE_u / MAR_b, MaskedArray[np.float64])
+assert_type(AR_LIKE_i / MAR_b, MaskedArray[np.float64])
+assert_type(AR_LIKE_f / MAR_b, MaskedArray[np.float64])
+assert_type(AR_LIKE_o / MAR_b, Any)
+
+assert_type(MAR_u4 / AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_u4 / AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_u4 / AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_u4 / AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_u4 / AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b / MAR_u4, MaskedArray[np.float64])
+assert_type(AR_LIKE_u / MAR_u4, MaskedArray[np.float64])
+assert_type(AR_LIKE_i / MAR_u4, MaskedArray[np.float64])
+assert_type(AR_LIKE_f / MAR_u4, MaskedArray[np.float64])
+assert_type(AR_LIKE_td64 / MAR_u4, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o / MAR_u4, Any)
+
+assert_type(MAR_i8 / AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_i8 / AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_i8 / AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_i8 / AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_i8 / AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b / MAR_i8, MaskedArray[np.float64])
+assert_type(AR_LIKE_u / MAR_i8, MaskedArray[np.float64])
+assert_type(AR_LIKE_i / MAR_i8, MaskedArray[np.float64])
+assert_type(AR_LIKE_f / MAR_i8, MaskedArray[np.float64])
+assert_type(AR_LIKE_td64 / MAR_i8, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o / MAR_i8, Any)
+
+assert_type(MAR_f8 / AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_f8 / AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_f8 / AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_f8 / AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_f8 / AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b / MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_u / MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_i / MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_f / MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_td64 / MAR_f8, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o / MAR_f8, Any)
+
+assert_type(MAR_td64 / AR_LIKE_u, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 / AR_LIKE_i, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 / AR_LIKE_f, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 / AR_LIKE_td64, MaskedArray[np.float64])
+assert_type(MAR_td64 / AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_td64 / MAR_td64, MaskedArray[np.float64])
+assert_type(AR_LIKE_o / MAR_td64, Any)
+
+assert_type(MAR_o / AR_LIKE_b, Any)
+assert_type(MAR_o / AR_LIKE_u, Any)
+assert_type(MAR_o / AR_LIKE_i, Any)
+assert_type(MAR_o / AR_LIKE_f, Any)
+assert_type(MAR_o / AR_LIKE_td64, Any)
+assert_type(MAR_o / AR_LIKE_dt64, Any)
+assert_type(MAR_o / AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b / MAR_o, Any)
+assert_type(AR_LIKE_u / MAR_o, Any)
+assert_type(AR_LIKE_i / MAR_o, Any)
+assert_type(AR_LIKE_f / MAR_o, Any)
+assert_type(AR_LIKE_td64 / MAR_o, Any)
+assert_type(AR_LIKE_dt64 / MAR_o, Any)
+assert_type(AR_LIKE_o / MAR_o, Any)
+
+# MaskedArray floor division
+
+assert_type(MAR_b // AR_LIKE_b, MaskedArray[np.int8])
+assert_type(MAR_b // AR_LIKE_u, MaskedArray[np.uint32])
+assert_type(MAR_b // AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_b // AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_b // AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b // MAR_b, MaskedArray[np.int8])
+assert_type(AR_LIKE_u // MAR_b, MaskedArray[np.uint32])
+assert_type(AR_LIKE_i // MAR_b, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f // MAR_b, MaskedArray[np.floating])
+assert_type(AR_LIKE_o // MAR_b, Any)
+
+assert_type(MAR_u4 // AR_LIKE_b, MaskedArray[np.uint32])
+assert_type(MAR_u4 // AR_LIKE_u, MaskedArray[np.unsignedinteger])
+assert_type(MAR_u4 // AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_u4 // AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_u4 // AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b // MAR_u4, MaskedArray[np.uint32])
+assert_type(AR_LIKE_u // MAR_u4, MaskedArray[np.unsignedinteger])
+assert_type(AR_LIKE_i // MAR_u4, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f // MAR_u4, MaskedArray[np.floating])
+assert_type(AR_LIKE_td64 // MAR_u4, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o // MAR_u4, Any)
+
+assert_type(MAR_i8 // AR_LIKE_b, MaskedArray[np.int64])
+assert_type(MAR_i8 // AR_LIKE_u, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 // AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 // AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_i8 // AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b // MAR_i8, MaskedArray[np.int64])
+assert_type(AR_LIKE_u // MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_i // MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f // MAR_i8, MaskedArray[np.floating])
+assert_type(AR_LIKE_td64 // MAR_i8, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o // MAR_i8, Any)
+
+assert_type(MAR_f8 // AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_f8 // AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_f8 // AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_f8 // AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_f8 // AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b // MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_u // MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_i // MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_f // MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_td64 // MAR_f8, MaskedArray[np.timedelta64])
+assert_type(AR_LIKE_o // MAR_f8, Any)
+
+assert_type(MAR_td64 // AR_LIKE_u, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 // AR_LIKE_i, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 // AR_LIKE_f, MaskedArray[np.timedelta64])
+assert_type(MAR_td64 // AR_LIKE_td64, MaskedArray[np.int64])
+assert_type(MAR_td64 // AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_td64 // MAR_td64, MaskedArray[np.int64])
+assert_type(AR_LIKE_o // MAR_td64, Any)
+
+assert_type(MAR_o // AR_LIKE_b, Any)
+assert_type(MAR_o // AR_LIKE_u, Any)
+assert_type(MAR_o // AR_LIKE_i, Any)
+assert_type(MAR_o // AR_LIKE_f, Any)
+assert_type(MAR_o // AR_LIKE_td64, Any)
+assert_type(MAR_o // AR_LIKE_dt64, Any)
+assert_type(MAR_o // AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b // MAR_o, Any)
+assert_type(AR_LIKE_u // MAR_o, Any)
+assert_type(AR_LIKE_i // MAR_o, Any)
+assert_type(AR_LIKE_f // MAR_o, Any)
+assert_type(AR_LIKE_td64 // MAR_o, Any)
+assert_type(AR_LIKE_dt64 // MAR_o, Any)
+assert_type(AR_LIKE_o // MAR_o, Any)
+
+# Masked Array power
+
+assert_type(MAR_b ** AR_LIKE_u, MaskedArray[np.uint32])
+assert_type(MAR_b ** AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_b ** AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_b ** AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_b ** AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_u ** MAR_b, MaskedArray[np.uint32])
+assert_type(AR_LIKE_i ** MAR_b, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f ** MAR_b, MaskedArray[np.floating])
+assert_type(AR_LIKE_c ** MAR_b, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_o ** MAR_b, Any)
+
+assert_type(MAR_u4 ** AR_LIKE_b, MaskedArray[np.uint32])
+assert_type(MAR_u4 ** AR_LIKE_u, MaskedArray[np.unsignedinteger])
+assert_type(MAR_u4 ** AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_u4 ** AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_u4 ** AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_u4 ** AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b ** MAR_u4, MaskedArray[np.uint32])
+assert_type(AR_LIKE_u ** MAR_u4, MaskedArray[np.unsignedinteger])
+assert_type(AR_LIKE_i ** MAR_u4, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f ** MAR_u4, MaskedArray[np.floating])
+assert_type(AR_LIKE_c ** MAR_u4, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_o ** MAR_u4, Any)
+
+assert_type(MAR_i8 ** AR_LIKE_b, MaskedArray[np.int64])
+assert_type(MAR_i8 ** AR_LIKE_u, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 ** AR_LIKE_i, MaskedArray[np.signedinteger])
+assert_type(MAR_i8 ** AR_LIKE_f, MaskedArray[np.floating])
+assert_type(MAR_i8 ** AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_i8 ** AR_LIKE_o, Any)
+assert_type(MAR_i8 ** AR_LIKE_b, MaskedArray[np.int64])
+
+assert_type(AR_LIKE_u ** MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_i ** MAR_i8, MaskedArray[np.signedinteger])
+assert_type(AR_LIKE_f ** MAR_i8, MaskedArray[np.floating])
+assert_type(AR_LIKE_c ** MAR_i8, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_o ** MAR_i8, Any)
+
+assert_type(MAR_f8 ** AR_LIKE_b, MaskedArray[np.float64])
+assert_type(MAR_f8 ** AR_LIKE_u, MaskedArray[np.float64])
+assert_type(MAR_f8 ** AR_LIKE_i, MaskedArray[np.float64])
+assert_type(MAR_f8 ** AR_LIKE_f, MaskedArray[np.float64])
+assert_type(MAR_f8 ** AR_LIKE_c, MaskedArray[np.complexfloating])
+assert_type(MAR_f8 ** AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b ** MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_u ** MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_i ** MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_f ** MAR_f8, MaskedArray[np.float64])
+assert_type(AR_LIKE_c ** MAR_f8, MaskedArray[np.complexfloating])
+assert_type(AR_LIKE_o ** MAR_f8, Any)
+
+assert_type(MAR_c16 ** AR_LIKE_b, MaskedArray[np.complex128])
+assert_type(MAR_c16 ** AR_LIKE_u, MaskedArray[np.complex128])
+assert_type(MAR_c16 ** AR_LIKE_i, MaskedArray[np.complex128])
+assert_type(MAR_c16 ** AR_LIKE_f, MaskedArray[np.complex128])
+assert_type(MAR_c16 ** AR_LIKE_c, MaskedArray[np.complex128])
+assert_type(MAR_c16 ** AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b ** MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_u ** MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_i ** MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_f ** MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_c ** MAR_c16, MaskedArray[np.complex128])
+assert_type(AR_LIKE_o ** MAR_c16, Any)
+
+assert_type(MAR_o ** AR_LIKE_b, Any)
+assert_type(MAR_o ** AR_LIKE_u, Any)
+assert_type(MAR_o ** AR_LIKE_i, Any)
+assert_type(MAR_o ** AR_LIKE_f, Any)
+assert_type(MAR_o ** AR_LIKE_c, Any)
+assert_type(MAR_o ** AR_LIKE_o, Any)
+
+assert_type(AR_LIKE_b ** MAR_o, Any)
+assert_type(AR_LIKE_u ** MAR_o, Any)
+assert_type(AR_LIKE_i ** MAR_o, Any)
+assert_type(AR_LIKE_f ** MAR_o, Any)
+assert_type(AR_LIKE_c ** MAR_o, Any)
+assert_type(AR_LIKE_o ** MAR_o, Any)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/matrix.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/matrix.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..e82bbbce73c83fd0d7221eb7fc672282961a89b6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/matrix.pyi
@@ -0,0 +1,73 @@
+from typing import Any, TypeAlias, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+_Shape2D: TypeAlias = tuple[int, int]
+
+mat: np.matrix[_Shape2D, np.dtype[np.int64]]
+ar_f8: npt.NDArray[np.float64]
+ar_ip: npt.NDArray[np.intp]
+
+assert_type(mat * 5, np.matrix)
+assert_type(5 * mat, np.matrix)
+mat *= 5
+
+assert_type(mat**5, np.matrix)
+mat **= 5
+
+assert_type(mat.sum(), Any)
+assert_type(mat.mean(), Any)
+assert_type(mat.std(), Any)
+assert_type(mat.var(), Any)
+assert_type(mat.prod(), Any)
+assert_type(mat.any(), np.bool)
+assert_type(mat.all(), np.bool)
+assert_type(mat.max(), np.int64)
+assert_type(mat.min(), np.int64)
+assert_type(mat.argmax(), np.intp)
+assert_type(mat.argmin(), np.intp)
+assert_type(mat.ptp(), np.int64)
+
+assert_type(mat.sum(axis=0), np.matrix)
+assert_type(mat.mean(axis=0), np.matrix)
+assert_type(mat.std(axis=0), np.matrix)
+assert_type(mat.var(axis=0), np.matrix)
+assert_type(mat.prod(axis=0), np.matrix)
+assert_type(mat.any(axis=0), np.matrix[_Shape2D, np.dtype[np.bool]])
+assert_type(mat.all(axis=0), np.matrix[_Shape2D, np.dtype[np.bool]])
+assert_type(mat.max(axis=0), np.matrix[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.min(axis=0), np.matrix[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.argmax(axis=0), np.matrix[_Shape2D, np.dtype[np.intp]])
+assert_type(mat.argmin(axis=0), np.matrix[_Shape2D, np.dtype[np.intp]])
+assert_type(mat.ptp(axis=0), np.matrix[_Shape2D, np.dtype[np.int64]])
+
+assert_type(mat.sum(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.mean(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.std(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.var(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.prod(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.any(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.all(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.max(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.min(out=ar_f8), npt.NDArray[np.float64])
+assert_type(mat.argmax(out=ar_ip), npt.NDArray[np.intp])
+assert_type(mat.argmin(out=ar_ip), npt.NDArray[np.intp])
+assert_type(mat.ptp(out=ar_f8), npt.NDArray[np.float64])
+
+assert_type(mat.T, np.matrix[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.I, np.matrix)
+assert_type(mat.A, np.ndarray[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.A1, npt.NDArray[np.int64])
+assert_type(mat.H, np.matrix[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.getT(), np.matrix[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.getI(), np.matrix)
+assert_type(mat.getA(), np.ndarray[_Shape2D, np.dtype[np.int64]])
+assert_type(mat.getA1(), npt.NDArray[np.int64])
+assert_type(mat.getH(), np.matrix[_Shape2D, np.dtype[np.int64]])
+
+assert_type(np.bmat(ar_f8), np.matrix)
+assert_type(np.bmat([[0, 1, 2]]), np.matrix)
+assert_type(np.bmat("mat"), np.matrix)
+
+assert_type(np.asmatrix(ar_f8, dtype=np.int64), np.matrix)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/memmap.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/memmap.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..57e31d4358a07062b1dd69e9d7547ef9862ff38f
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/memmap.pyi
@@ -0,0 +1,19 @@
+from typing import Any, assert_type
+
+import numpy as np
+
+memmap_obj: np.memmap[Any, np.dtype[np.str_]]
+
+assert_type(np.memmap.__array_priority__, float)
+assert_type(memmap_obj.__array_priority__, float)
+assert_type(memmap_obj.filename, str | None)
+assert_type(memmap_obj.offset, int)
+assert_type(memmap_obj.mode, str)
+assert_type(memmap_obj.flush(), None)
+
+assert_type(np.memmap("file.txt", offset=5), np.memmap[Any, np.dtype[np.uint8]])
+assert_type(np.memmap(b"file.txt", dtype=np.float64, shape=(10, 3)), np.memmap[Any, np.dtype[np.float64]])
+with open("file.txt", "rb") as f:
+    assert_type(np.memmap(f, dtype=float, order="K"), np.memmap[Any, np.dtype])
+
+assert_type(memmap_obj.__array_finalize__(object()), None)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/mod.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/mod.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..3f0da160711d466b17e15b279ee4d961da7c1a3e
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/mod.pyi
@@ -0,0 +1,178 @@
+import datetime as dt
+from typing import Literal as L, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+f8: np.float64
+i8: np.int64
+u8: np.uint64
+
+f4: np.float32
+i4: np.int32
+u4: np.uint32
+
+m: np.timedelta64
+m_nat: np.timedelta64[None]
+m_int0: np.timedelta64[L[0]]
+m_int: np.timedelta64[int]
+m_td: np.timedelta64[dt.timedelta]
+
+b_: np.bool
+
+b: bool
+i: int
+f: float
+
+AR_b: npt.NDArray[np.bool]
+AR_m: npt.NDArray[np.timedelta64]
+
+# Time structures
+
+assert_type(m % m, np.timedelta64)
+assert_type(m % m_nat, np.timedelta64[None])
+assert_type(m % m_int0, np.timedelta64[None])
+assert_type(m % m_int, np.timedelta64[int | None])
+assert_type(m_nat % m, np.timedelta64[None])
+assert_type(m_int % m_nat, np.timedelta64[None])
+assert_type(m_int % m_int0, np.timedelta64[None])
+assert_type(m_int % m_int, np.timedelta64[int | None])
+assert_type(m_int % m_td, np.timedelta64[int | None])
+assert_type(m_td % m_nat, np.timedelta64[None])
+assert_type(m_td % m_int0, np.timedelta64[None])
+assert_type(m_td % m_int, np.timedelta64[int | None])
+assert_type(m_td % m_td, np.timedelta64[dt.timedelta | None])
+
+assert_type(AR_m % m, npt.NDArray[np.timedelta64])
+assert_type(m % AR_m, npt.NDArray[np.timedelta64])
+
+assert_type(divmod(m, m), tuple[np.int64, np.timedelta64])
+assert_type(divmod(m, m_nat), tuple[np.int64, np.timedelta64[None]])
+assert_type(divmod(m, m_int0), tuple[np.int64, np.timedelta64[None]])
+# workarounds for https://github.com/microsoft/pyright/issues/9663
+assert_type(m.__divmod__(m_int), tuple[np.int64, np.timedelta64[int | None]])
+assert_type(divmod(m_nat, m), tuple[np.int64, np.timedelta64[None]])
+assert_type(divmod(m_int, m_nat), tuple[np.int64, np.timedelta64[None]])
+assert_type(divmod(m_int, m_int0), tuple[np.int64, np.timedelta64[None]])
+assert_type(divmod(m_int, m_int), tuple[np.int64, np.timedelta64[int | None]])
+assert_type(divmod(m_int, m_td), tuple[np.int64, np.timedelta64[int | None]])
+assert_type(divmod(m_td, m_nat), tuple[np.int64, np.timedelta64[None]])
+assert_type(divmod(m_td, m_int0), tuple[np.int64, np.timedelta64[None]])
+assert_type(divmod(m_td, m_int), tuple[np.int64, np.timedelta64[int | None]])
+assert_type(divmod(m_td, m_td), tuple[np.int64, np.timedelta64[dt.timedelta | None]])
+
+assert_type(divmod(AR_m, m), tuple[npt.NDArray[np.int64], npt.NDArray[np.timedelta64]])
+assert_type(divmod(m, AR_m), tuple[npt.NDArray[np.int64], npt.NDArray[np.timedelta64]])
+
+# Bool
+
+assert_type(b_ % b, np.int8)
+assert_type(b_ % i, np.int_)
+assert_type(b_ % f, np.float64)
+assert_type(b_ % b_, np.int8)
+assert_type(b_ % i8, np.int64)
+assert_type(b_ % u8, np.uint64)
+assert_type(b_ % f8, np.float64)
+assert_type(b_ % AR_b, npt.NDArray[np.int8])
+
+assert_type(divmod(b_, b), tuple[np.int8, np.int8])
+assert_type(divmod(b_, b_), tuple[np.int8, np.int8])
+# workarounds for https://github.com/microsoft/pyright/issues/9663
+assert_type(b_.__divmod__(i), tuple[np.int_, np.int_])
+assert_type(b_.__divmod__(f), tuple[np.float64, np.float64])
+assert_type(b_.__divmod__(i8), tuple[np.int64, np.int64])
+assert_type(b_.__divmod__(u8), tuple[np.uint64, np.uint64])
+assert_type(divmod(b_, f8), tuple[np.float64, np.float64])
+assert_type(divmod(b_, AR_b), tuple[npt.NDArray[np.int8], npt.NDArray[np.int8]])
+
+assert_type(b % b_, np.int8)
+assert_type(i % b_, np.int_)
+assert_type(f % b_, np.float64)
+assert_type(b_ % b_, np.int8)
+assert_type(i8 % b_, np.int64)
+assert_type(u8 % b_, np.uint64)
+assert_type(f8 % b_, np.float64)
+assert_type(AR_b % b_, npt.NDArray[np.int8])
+
+assert_type(divmod(b, b_), tuple[np.int8, np.int8])
+assert_type(divmod(i, b_), tuple[np.int_, np.int_])
+assert_type(divmod(f, b_), tuple[np.float64, np.float64])
+assert_type(divmod(b_, b_), tuple[np.int8, np.int8])
+assert_type(divmod(i8, b_), tuple[np.int64, np.int64])
+assert_type(divmod(u8, b_), tuple[np.uint64, np.uint64])
+assert_type(divmod(f8, b_), tuple[np.float64, np.float64])
+assert_type(divmod(AR_b, b_), tuple[npt.NDArray[np.int8], npt.NDArray[np.int8]])
+
+# int
+
+assert_type(i8 % b, np.int64)
+assert_type(i8 % i8, np.int64)
+assert_type(i8 % f, np.float64)
+assert_type(i8 % f8, np.float64)
+assert_type(i4 % i8, np.signedinteger)
+assert_type(i4 % f8, np.float64)
+assert_type(i4 % i4, np.int32)
+assert_type(i4 % f4, np.floating)
+assert_type(i8 % AR_b, npt.NDArray[np.int64])
+
+assert_type(divmod(i8, b), tuple[np.int64, np.int64])
+assert_type(divmod(i8, i4), tuple[np.signedinteger, np.signedinteger])
+assert_type(divmod(i8, i8), tuple[np.int64, np.int64])
+# workarounds for https://github.com/microsoft/pyright/issues/9663
+assert_type(i8.__divmod__(f), tuple[np.float64, np.float64])
+assert_type(i8.__divmod__(f8), tuple[np.float64, np.float64])
+assert_type(divmod(i8, f4), tuple[np.floating, np.floating])
+assert_type(divmod(i4, i4), tuple[np.int32, np.int32])
+assert_type(divmod(i4, f4), tuple[np.floating, np.floating])
+assert_type(divmod(i8, AR_b), tuple[npt.NDArray[np.int64], npt.NDArray[np.int64]])
+
+assert_type(b % i8, np.int64)
+assert_type(f % i8, np.float64)
+assert_type(i8 % i8, np.int64)
+assert_type(f8 % i8, np.float64)
+assert_type(i8 % i4, np.signedinteger)
+assert_type(f8 % i4, np.float64)
+assert_type(i4 % i4, np.int32)
+assert_type(f4 % i4, np.floating)
+assert_type(AR_b % i8, npt.NDArray[np.int64])
+
+assert_type(divmod(b, i8), tuple[np.int64, np.int64])
+assert_type(divmod(f, i8), tuple[np.float64, np.float64])
+assert_type(divmod(i8, i8), tuple[np.int64, np.int64])
+assert_type(divmod(f8, i8), tuple[np.float64, np.float64])
+assert_type(divmod(i4, i8), tuple[np.signedinteger, np.signedinteger])
+assert_type(divmod(i4, i4), tuple[np.int32, np.int32])
+# workarounds for https://github.com/microsoft/pyright/issues/9663
+assert_type(f4.__divmod__(i8), tuple[np.floating, np.floating])
+assert_type(f4.__divmod__(i4), tuple[np.floating, np.floating])
+assert_type(AR_b.__divmod__(i8), tuple[npt.NDArray[np.int64], npt.NDArray[np.int64]])
+
+# float
+
+assert_type(f8 % b, np.float64)
+assert_type(f8 % f, np.float64)
+assert_type(i8 % f4, np.floating)
+assert_type(f4 % f4, np.float32)
+assert_type(f8 % AR_b, npt.NDArray[np.float64])
+
+assert_type(divmod(f8, b), tuple[np.float64, np.float64])
+assert_type(divmod(f8, f), tuple[np.float64, np.float64])
+assert_type(divmod(f8, f8), tuple[np.float64, np.float64])
+assert_type(divmod(f8, f4), tuple[np.float64, np.float64])
+assert_type(divmod(f4, f4), tuple[np.float32, np.float32])
+assert_type(divmod(f8, AR_b), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
+
+assert_type(b % f8, np.float64)
+assert_type(f % f8, np.float64)  # pyright: ignore[reportAssertTypeFailure]  # pyright incorrectly infers `builtins.float`
+assert_type(f8 % f8, np.float64)
+assert_type(f8 % f8, np.float64)
+assert_type(f4 % f4, np.float32)
+assert_type(AR_b % f8, npt.NDArray[np.float64])
+
+assert_type(divmod(b, f8), tuple[np.float64, np.float64])
+assert_type(divmod(f8, f8), tuple[np.float64, np.float64])
+assert_type(divmod(f4, f4), tuple[np.float32, np.float32])
+# workarounds for https://github.com/microsoft/pyright/issues/9663
+assert_type(f8.__rdivmod__(f), tuple[np.float64, np.float64])
+assert_type(f8.__rdivmod__(f4), tuple[np.float64, np.float64])
+assert_type(AR_b.__divmod__(f8), tuple[npt.NDArray[np.float64], npt.NDArray[np.float64]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/modules.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/modules.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..1e582d9d74840ddcb2983de4ec9a3f0c8e821873
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/modules.pyi
@@ -0,0 +1,51 @@
+import types
+from typing import assert_type
+
+import numpy as np
+from numpy import f2py
+
+assert_type(np, types.ModuleType)
+
+assert_type(np.char, types.ModuleType)
+assert_type(np.ctypeslib, types.ModuleType)
+assert_type(np.emath, types.ModuleType)
+assert_type(np.fft, types.ModuleType)
+assert_type(np.lib, types.ModuleType)
+assert_type(np.linalg, types.ModuleType)
+assert_type(np.ma, types.ModuleType)
+assert_type(np.matrixlib, types.ModuleType)
+assert_type(np.polynomial, types.ModuleType)
+assert_type(np.random, types.ModuleType)
+assert_type(np.rec, types.ModuleType)
+assert_type(np.testing, types.ModuleType)
+assert_type(np.version, types.ModuleType)
+assert_type(np.exceptions, types.ModuleType)
+assert_type(np.dtypes, types.ModuleType)
+
+assert_type(np.lib.format, types.ModuleType)
+assert_type(np.lib.mixins, types.ModuleType)
+assert_type(np.lib.scimath, types.ModuleType)
+assert_type(np.lib.stride_tricks, types.ModuleType)
+assert_type(np.ma.extras, types.ModuleType)
+assert_type(np.polynomial.chebyshev, types.ModuleType)
+assert_type(np.polynomial.hermite, types.ModuleType)
+assert_type(np.polynomial.hermite_e, types.ModuleType)
+assert_type(np.polynomial.laguerre, types.ModuleType)
+assert_type(np.polynomial.legendre, types.ModuleType)
+assert_type(np.polynomial.polynomial, types.ModuleType)
+
+assert_type(np.__path__, list[str])
+assert_type(np.__version__, str)
+assert_type(np.test, np._pytesttester.PytestTester)
+assert_type(np.test.module_name, str)
+
+assert_type(np.__all__, list[str])
+assert_type(np.char.__all__, list[str])
+assert_type(np.ctypeslib.__all__, list[str])
+assert_type(np.emath.__all__, list[str])
+assert_type(np.lib.__all__, list[str])
+assert_type(np.ma.__all__, list[str])
+assert_type(np.random.__all__, list[str])
+assert_type(np.rec.__all__, list[str])
+assert_type(np.testing.__all__, list[str])
+assert_type(f2py.__all__, list[str])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/multiarray.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/multiarray.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..cb9aa7863e7bea1c958172a5c827ed74bd2d0666
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/multiarray.pyi
@@ -0,0 +1,197 @@
+import datetime as dt
+from typing import Any, Literal, TypeVar, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+_ScalarT_co = TypeVar("_ScalarT_co", bound=np.generic, covariant=True)
+
+class SubClass(npt.NDArray[_ScalarT_co]): ...
+
+subclass: SubClass[np.float64]
+
+AR_f8: npt.NDArray[np.float64]
+AR_i8: npt.NDArray[np.int64]
+AR_u1: npt.NDArray[np.uint8]
+AR_m: npt.NDArray[np.timedelta64]
+AR_M: npt.NDArray[np.datetime64]
+
+AR_LIKE_f: list[float]
+AR_LIKE_i: list[int]
+
+m: np.timedelta64
+M: np.datetime64
+
+b_f8 = np.broadcast(AR_f8)
+b_i8_f8_f8 = np.broadcast(AR_i8, AR_f8, AR_f8)
+
+nditer_obj: np.nditer
+
+date_scalar: dt.date
+date_seq: list[dt.date]
+timedelta_seq: list[dt.timedelta]
+
+n1: Literal[1]
+n2: Literal[2]
+n3: Literal[3]
+
+f8: np.float64
+
+def func11(a: int) -> bool: ...
+def func21(a: int, b: int) -> int: ...
+def func12(a: int) -> tuple[complex, bool]: ...
+
+assert_type(next(b_f8), tuple[Any, ...])
+assert_type(b_f8.reset(), None)
+assert_type(b_f8.index, int)
+assert_type(b_f8.iters, tuple[np.flatiter[Any], ...])
+assert_type(b_f8.nd, int)
+assert_type(b_f8.ndim, int)
+assert_type(b_f8.numiter, int)
+assert_type(b_f8.shape, tuple[Any, ...])
+assert_type(b_f8.size, int)
+
+assert_type(next(b_i8_f8_f8), tuple[Any, ...])
+assert_type(b_i8_f8_f8.reset(), None)
+assert_type(b_i8_f8_f8.index, int)
+assert_type(b_i8_f8_f8.iters, tuple[np.flatiter[Any], ...])
+assert_type(b_i8_f8_f8.nd, int)
+assert_type(b_i8_f8_f8.ndim, int)
+assert_type(b_i8_f8_f8.numiter, int)
+assert_type(b_i8_f8_f8.shape, tuple[Any, ...])
+assert_type(b_i8_f8_f8.size, int)
+
+assert_type(np.inner(AR_f8, AR_i8), Any)
+
+assert_type(np.where([True, True, False]), tuple[npt.NDArray[np.intp], ...])
+assert_type(np.where([True, True, False], 1, 0), npt.NDArray[Any])
+
+assert_type(np.lexsort([0, 1, 2]), npt.NDArray[np.intp])
+
+assert_type(np.can_cast(np.dtype("i8"), int), bool)
+assert_type(np.can_cast(AR_f8, "f8"), bool)
+assert_type(np.can_cast(AR_f8, np.complex128, casting="unsafe"), bool)
+
+assert_type(np.min_scalar_type([1]), np.dtype)
+assert_type(np.min_scalar_type(AR_f8), np.dtype)
+
+assert_type(np.result_type(int, [1]), np.dtype)
+assert_type(np.result_type(AR_f8, AR_u1), np.dtype)
+assert_type(np.result_type(AR_f8, np.complex128), np.dtype)
+
+assert_type(np.dot(AR_LIKE_f, AR_i8), Any)
+assert_type(np.dot(AR_u1, 1), Any)
+assert_type(np.dot(1.5j, 1), Any)
+assert_type(np.dot(AR_u1, 1, out=AR_f8), npt.NDArray[np.float64])
+
+assert_type(np.vdot(AR_LIKE_f, AR_i8), np.floating)
+assert_type(np.vdot(AR_u1, 1), np.signedinteger)
+assert_type(np.vdot(1.5j, 1), np.complexfloating)
+
+assert_type(np.bincount(AR_i8), npt.NDArray[np.intp])
+
+assert_type(np.copyto(AR_f8, [1., 1.5, 1.6]), None)
+
+assert_type(np.putmask(AR_f8, [True, True, False], 1.5), None)
+
+assert_type(np.packbits(AR_i8),  np.ndarray[tuple[int], np.dtype[np.uint8]])
+assert_type(np.packbits(AR_u1),  np.ndarray[tuple[int], np.dtype[np.uint8]])
+assert_type(np.packbits(AR_i8, axis=1), npt.NDArray[np.uint8])
+assert_type(np.packbits(AR_u1, axis=1), npt.NDArray[np.uint8])
+
+assert_type(np.unpackbits(AR_u1), np.ndarray[tuple[int], np.dtype[np.uint8]])
+assert_type(np.unpackbits(AR_u1, axis=1), npt.NDArray[np.uint8])
+
+assert_type(np.shares_memory(1, 2), bool)
+assert_type(np.shares_memory(AR_f8, AR_f8, max_work=-1), bool)
+
+assert_type(np.may_share_memory(1, 2), bool)
+assert_type(np.may_share_memory(AR_f8, AR_f8, max_work=0), bool)
+
+assert_type(np.promote_types(np.int32, np.int64), np.dtype)
+assert_type(np.promote_types("f4", float), np.dtype)
+
+assert_type(np.frompyfunc(func11, n1, n1).nin, Literal[1])
+assert_type(np.frompyfunc(func11, n1, n1).nout, Literal[1])
+assert_type(np.frompyfunc(func11, n1, n1).nargs, Literal[2])
+assert_type(np.frompyfunc(func11, n1, n1).ntypes, Literal[1])
+assert_type(np.frompyfunc(func11, n1, n1).identity, None)
+assert_type(np.frompyfunc(func11, n1, n1).signature, None)
+assert_type(np.frompyfunc(func11, n1, n1)(f8), bool)
+assert_type(np.frompyfunc(func11, n1, n1)(AR_f8), bool | npt.NDArray[np.object_])
+assert_type(np.frompyfunc(func11, n1, n1).at(AR_f8, AR_i8), None)
+
+assert_type(np.frompyfunc(func21, n2, n1).nin, Literal[2])
+assert_type(np.frompyfunc(func21, n2, n1).nout, Literal[1])
+assert_type(np.frompyfunc(func21, n2, n1).nargs, Literal[3])
+assert_type(np.frompyfunc(func21, n2, n1).ntypes, Literal[1])
+assert_type(np.frompyfunc(func21, n2, n1).identity, None)
+assert_type(np.frompyfunc(func21, n2, n1).signature, None)
+assert_type(np.frompyfunc(func21, n2, n1)(f8, f8), int)
+assert_type(np.frompyfunc(func21, n2, n1)(AR_f8, f8), int | npt.NDArray[np.object_])
+assert_type(np.frompyfunc(func21, n2, n1)(f8, AR_f8), int | npt.NDArray[np.object_])
+assert_type(np.frompyfunc(func21, n2, n1).reduce(AR_f8, axis=0), int | npt.NDArray[np.object_])
+assert_type(np.frompyfunc(func21, n2, n1).accumulate(AR_f8), npt.NDArray[np.object_])
+assert_type(np.frompyfunc(func21, n2, n1).reduceat(AR_f8, AR_i8), npt.NDArray[np.object_])
+assert_type(np.frompyfunc(func21, n2, n1).outer(f8, f8), int)
+assert_type(np.frompyfunc(func21, n2, n1).outer(AR_f8, f8), int | npt.NDArray[np.object_])
+
+assert_type(np.frompyfunc(func21, n2, n1, identity=0).nin, Literal[2])
+assert_type(np.frompyfunc(func21, n2, n1, identity=0).nout, Literal[1])
+assert_type(np.frompyfunc(func21, n2, n1, identity=0).nargs, Literal[3])
+assert_type(np.frompyfunc(func21, n2, n1, identity=0).ntypes, Literal[1])
+assert_type(np.frompyfunc(func21, n2, n1, identity=0).identity, int)
+assert_type(np.frompyfunc(func21, n2, n1, identity=0).signature, None)
+
+assert_type(np.frompyfunc(func12, n1, n2).nin, Literal[1])
+assert_type(np.frompyfunc(func12, n1, n2).nout, Literal[2])
+assert_type(np.frompyfunc(func12, n1, n2).nargs, int)
+assert_type(np.frompyfunc(func12, n1, n2).ntypes, Literal[1])
+assert_type(np.frompyfunc(func12, n1, n2).identity, None)
+assert_type(np.frompyfunc(func12, n1, n2).signature, None)
+assert_type(
+    np.frompyfunc(func12, n2, n2)(f8, f8),
+    tuple[complex, complex, *tuple[complex, ...]],
+)
+assert_type(
+    np.frompyfunc(func12, n2, n2)(AR_f8, f8),
+    tuple[
+        complex | npt.NDArray[np.object_],
+        complex | npt.NDArray[np.object_],
+        *tuple[complex | npt.NDArray[np.object_], ...],
+    ],
+)
+
+assert_type(np.datetime_data("m8[D]"), tuple[str, int])
+assert_type(np.datetime_data(np.datetime64), tuple[str, int])
+assert_type(np.datetime_data(np.dtype(np.timedelta64)), tuple[str, int])
+
+assert_type(np.busday_count("2011-01", "2011-02"), np.int_)
+assert_type(np.busday_count(["2011-01"], "2011-02"), npt.NDArray[np.int_])
+assert_type(np.busday_count(["2011-01"], date_scalar), npt.NDArray[np.int_])
+
+assert_type(np.busday_offset(M, m), np.datetime64)
+assert_type(np.busday_offset(date_scalar, m), np.datetime64)
+assert_type(np.busday_offset(M, 5), np.datetime64)
+assert_type(np.busday_offset(AR_M, m), npt.NDArray[np.datetime64])
+assert_type(np.busday_offset(M, timedelta_seq), npt.NDArray[np.datetime64])
+assert_type(np.busday_offset("2011-01", "2011-02", roll="forward"), np.datetime64)
+assert_type(np.busday_offset(["2011-01"], "2011-02", roll="forward"), npt.NDArray[np.datetime64])
+
+assert_type(np.is_busday("2012"), np.bool)
+assert_type(np.is_busday(date_scalar), np.bool)
+assert_type(np.is_busday(["2012"]), npt.NDArray[np.bool])
+
+assert_type(np.datetime_as_string(M), np.str_)
+assert_type(np.datetime_as_string(AR_M), npt.NDArray[np.str_])
+
+assert_type(np.busdaycalendar(holidays=date_seq), np.busdaycalendar)
+assert_type(np.busdaycalendar(holidays=[M]), np.busdaycalendar)
+
+assert_type(np.char.compare_chararrays("a", "b", "!=", rstrip=False), npt.NDArray[np.bool])
+assert_type(np.char.compare_chararrays(b"a", b"a", "==", True), npt.NDArray[np.bool])
+
+assert_type(np.nested_iters([AR_i8, AR_i8], [[0], [1]], flags=["c_index"]), tuple[np.nditer, ...])
+assert_type(np.nested_iters([AR_i8, AR_i8], [[0], [1]], op_flags=[["readonly", "readonly"]]), tuple[np.nditer, ...])
+assert_type(np.nested_iters([AR_i8, AR_i8], [[0], [1]], op_dtypes=np.int_), tuple[np.nditer, ...])
+assert_type(np.nested_iters([AR_i8, AR_i8], [[0], [1]], order="C", casting="no"), tuple[np.nditer, ...])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nbit_base_example.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nbit_base_example.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..4ac59e99d4d38b57e627d631d4583de9047667cc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nbit_base_example.pyi
@@ -0,0 +1,20 @@
+from typing import TypeVar, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy._typing import _32Bit, _64Bit
+
+T1 = TypeVar("T1", bound=npt.NBitBase)  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+T2 = TypeVar("T2", bound=npt.NBitBase)  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+
+def add(a: np.floating[T1], b: np.integer[T2]) -> np.floating[T1 | T2]: ...
+
+i8: np.int64
+i4: np.int32
+f8: np.float64
+f4: np.float32
+
+assert_type(add(f8, i8), np.floating[_64Bit])
+assert_type(add(f4, i8), np.floating[_32Bit | _64Bit])
+assert_type(add(f8, i4), np.floating[_32Bit | _64Bit])
+assert_type(add(f4, i4), np.floating[_32Bit])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_assignability.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_assignability.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..3694b685f16fa2ef9623fb142fc4e7a690c2a4ee
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_assignability.pyi
@@ -0,0 +1,82 @@
+from typing import Any, Protocol, TypeAlias, TypeVar, assert_type
+
+import numpy as np
+from numpy._typing import _64Bit
+
+_T = TypeVar("_T")
+_T_co = TypeVar("_T_co", covariant=True)
+
+class CanAbs(Protocol[_T_co]):
+    def __abs__(self, /) -> _T_co: ...
+
+class CanInvert(Protocol[_T_co]):
+    def __invert__(self, /) -> _T_co: ...
+
+class CanNeg(Protocol[_T_co]):
+    def __neg__(self, /) -> _T_co: ...
+
+class CanPos(Protocol[_T_co]):
+    def __pos__(self, /) -> _T_co: ...
+
+def do_abs(x: CanAbs[_T]) -> _T: ...
+def do_invert(x: CanInvert[_T]) -> _T: ...
+def do_neg(x: CanNeg[_T]) -> _T: ...
+def do_pos(x: CanPos[_T]) -> _T: ...
+
+_Bool_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.bool]]
+_UInt8_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.uint8]]
+_Int16_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.int16]]
+_LongLong_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.longlong]]
+_Float32_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.float32]]
+_Float64_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.float64]]
+_LongDouble_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.longdouble]]
+_Complex64_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.complex64]]
+_Complex128_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.complex128]]
+_CLongDouble_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.clongdouble]]
+_Void_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[np.void]]
+
+b1_1d: _Bool_1d
+u1_1d: _UInt8_1d
+i2_1d: _Int16_1d
+q_1d: _LongLong_1d
+f4_1d: _Float32_1d
+f8_1d: _Float64_1d
+g_1d: _LongDouble_1d
+c8_1d: _Complex64_1d
+c16_1d: _Complex128_1d
+G_1d: _CLongDouble_1d
+V_1d: _Void_1d
+
+assert_type(do_abs(b1_1d), _Bool_1d)
+assert_type(do_abs(u1_1d), _UInt8_1d)
+assert_type(do_abs(i2_1d), _Int16_1d)
+assert_type(do_abs(q_1d), _LongLong_1d)
+assert_type(do_abs(f4_1d), _Float32_1d)
+assert_type(do_abs(f8_1d), _Float64_1d)
+assert_type(do_abs(g_1d), _LongDouble_1d)
+
+assert_type(do_abs(c8_1d), _Float32_1d)
+# NOTE: Unfortunately it's not possible to have this return a `float64` sctype, see
+# https://github.com/python/mypy/issues/14070
+assert_type(do_abs(c16_1d), np.ndarray[tuple[int], np.dtype[np.floating[_64Bit]]])
+assert_type(do_abs(G_1d), _LongDouble_1d)
+
+assert_type(do_invert(b1_1d), _Bool_1d)
+assert_type(do_invert(u1_1d), _UInt8_1d)
+assert_type(do_invert(i2_1d), _Int16_1d)
+assert_type(do_invert(q_1d), _LongLong_1d)
+
+assert_type(do_neg(u1_1d), _UInt8_1d)
+assert_type(do_neg(i2_1d), _Int16_1d)
+assert_type(do_neg(q_1d), _LongLong_1d)
+assert_type(do_neg(f4_1d), _Float32_1d)
+assert_type(do_neg(c16_1d), _Complex128_1d)
+
+assert_type(do_pos(u1_1d), _UInt8_1d)
+assert_type(do_pos(i2_1d), _Int16_1d)
+assert_type(do_pos(q_1d), _LongLong_1d)
+assert_type(do_pos(f4_1d), _Float32_1d)
+assert_type(do_pos(c16_1d), _Complex128_1d)
+
+# this shape is effectively equivalent to `tuple[int, *tuple[Any, ...]]`, i.e. ndim >= 1
+assert_type(V_1d["field"], np.ndarray[tuple[int] | tuple[Any, ...]])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_conversion.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_conversion.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..0e235ef4ca25b8f87e3d7c3a0123b57bfc587238
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_conversion.pyi
@@ -0,0 +1,83 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+b1_0d: np.ndarray[tuple[()], np.dtype[np.bool]]
+u2_1d: np.ndarray[tuple[int], np.dtype[np.uint16]]
+i4_2d: np.ndarray[tuple[int, int], np.dtype[np.int32]]
+f8_3d: np.ndarray[tuple[int, int, int], np.dtype[np.float64]]
+cG_4d: np.ndarray[tuple[int, int, int, int], np.dtype[np.clongdouble]]
+i0_nd: npt.NDArray[np.int_]
+uncertain_dtype: np.int32 | np.float64 | np.str_
+
+# item
+assert_type(i0_nd.item(), int)
+assert_type(i0_nd.item(1), int)
+assert_type(i0_nd.item(0, 1), int)
+assert_type(i0_nd.item((0, 1)), int)
+
+assert_type(b1_0d.item(()), bool)
+assert_type(u2_1d.item((0,)), int)
+assert_type(i4_2d.item(-1, 2), int)
+assert_type(f8_3d.item(2, 1, -1), float)
+assert_type(cG_4d.item(-0xEd_fed_Deb_a_dead_bee), complex)  # c'mon Ed, we talked about this...
+
+# tolist
+assert_type(b1_0d.tolist(), bool)
+assert_type(u2_1d.tolist(), list[int])
+assert_type(i4_2d.tolist(), list[list[int]])
+assert_type(f8_3d.tolist(), list[list[list[float]]])
+assert_type(cG_4d.tolist(), Any)
+assert_type(i0_nd.tolist(), Any)
+
+# regression tests for numpy/numpy#27944
+any_dtype: np.ndarray[Any, Any]
+any_sctype: np.ndarray[Any, Any]
+assert_type(any_dtype.tolist(), Any)
+assert_type(any_sctype.tolist(), Any)
+
+# tobytes is pretty simple
+# tofile does not return a value
+# dump does not return a value
+# dumps is pretty simple
+
+# astype
+assert_type(i0_nd.astype("float"), npt.NDArray[Any])
+assert_type(i0_nd.astype(float), npt.NDArray[Any])
+assert_type(i0_nd.astype(np.float64), npt.NDArray[np.float64])
+assert_type(i0_nd.astype(np.float64, "K"), npt.NDArray[np.float64])
+assert_type(i0_nd.astype(np.float64, "K", "unsafe"), npt.NDArray[np.float64])
+assert_type(i0_nd.astype(np.float64, "K", "unsafe", True), npt.NDArray[np.float64])
+assert_type(i0_nd.astype(np.float64, "K", "unsafe", True, True), npt.NDArray[np.float64])
+
+assert_type(np.astype(i0_nd, np.float64), npt.NDArray[np.float64])
+
+assert_type(i4_2d.astype(np.uint16), np.ndarray[tuple[int, int], np.dtype[np.uint16]])
+assert_type(np.astype(i4_2d, np.uint16), np.ndarray[tuple[int, int], np.dtype[np.uint16]])
+assert_type(f8_3d.astype(np.int16), np.ndarray[tuple[int, int, int], np.dtype[np.int16]])
+assert_type(np.astype(f8_3d, np.int16), np.ndarray[tuple[int, int, int], np.dtype[np.int16]])
+assert_type(i4_2d.astype(uncertain_dtype), np.ndarray[tuple[int, int], np.dtype[np.generic]])
+assert_type(np.astype(i4_2d, uncertain_dtype), np.ndarray[tuple[int, int], np.dtype])
+
+# byteswap
+assert_type(i0_nd.byteswap(), npt.NDArray[np.int_])
+assert_type(i0_nd.byteswap(True), npt.NDArray[np.int_])
+
+# copy
+assert_type(i0_nd.copy(), npt.NDArray[np.int_])
+assert_type(i0_nd.copy("C"), npt.NDArray[np.int_])
+
+assert_type(i0_nd.view(), npt.NDArray[np.int_])
+assert_type(i0_nd.view(np.float64), npt.NDArray[np.float64])
+assert_type(i0_nd.view(float), npt.NDArray[Any])
+assert_type(i0_nd.view(np.float64, np.matrix), np.matrix)
+
+# getfield
+assert_type(i0_nd.getfield("float"), npt.NDArray[Any])
+assert_type(i0_nd.getfield(float), npt.NDArray[Any])
+assert_type(i0_nd.getfield(np.float64), npt.NDArray[np.float64])
+assert_type(i0_nd.getfield(np.float64, 8), npt.NDArray[np.float64])
+
+# setflags does not return a value
+# fill does not return a value
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_misc.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_misc.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..28754ae7d199796a8232f488da6ca73017f25649
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_misc.pyi
@@ -0,0 +1,246 @@
+"""
+Tests for miscellaneous (non-magic) ``np.ndarray``/``np.generic`` methods.
+
+More extensive tests are performed for the methods'
+function-based counterpart in `../from_numeric.py`.
+
+"""
+
+import ctypes as ct
+import operator
+from collections.abc import Iterator
+from types import ModuleType
+from typing import Any, Literal, assert_type
+from typing_extensions import CapsuleType
+
+import numpy as np
+import numpy.typing as npt
+
+class SubClass(npt.NDArray[np.object_]): ...
+
+f8: np.float64
+i8: np.int64
+B: SubClass
+AR_f8: npt.NDArray[np.float64]
+AR_i8: npt.NDArray[np.int64]
+AR_u1: npt.NDArray[np.uint8]
+AR_c8: npt.NDArray[np.complex64]
+AR_m: npt.NDArray[np.timedelta64]
+AR_U: npt.NDArray[np.str_]
+AR_V: npt.NDArray[np.void]
+
+AR_f8_1d: np.ndarray[tuple[int], np.dtype[np.float64]]
+AR_f8_2d: np.ndarray[tuple[int, int], np.dtype[np.float64]]
+AR_f8_3d: np.ndarray[tuple[int, int, int], np.dtype[np.float64]]
+
+ctypes_obj = AR_f8.ctypes
+
+assert_type(AR_f8.__dlpack__(), CapsuleType)
+assert_type(AR_f8.__dlpack_device__(), tuple[Literal[1], Literal[0]])
+
+assert_type(ctypes_obj.data, int)
+assert_type(ctypes_obj.shape, ct.Array[np.ctypeslib.c_intp])
+assert_type(ctypes_obj.strides, ct.Array[np.ctypeslib.c_intp])
+assert_type(ctypes_obj._as_parameter_, ct.c_void_p)
+
+assert_type(ctypes_obj.data_as(ct.c_void_p), ct.c_void_p)
+assert_type(ctypes_obj.shape_as(ct.c_longlong), ct.Array[ct.c_longlong])
+assert_type(ctypes_obj.strides_as(ct.c_ubyte), ct.Array[ct.c_ubyte])
+
+assert_type(f8.all(), np.bool)
+assert_type(AR_f8.all(), np.bool)
+assert_type(AR_f8.all(axis=0), np.bool | npt.NDArray[np.bool])
+assert_type(AR_f8.all(keepdims=True), np.bool | npt.NDArray[np.bool])
+assert_type(AR_f8.all(out=B), SubClass)
+
+assert_type(f8.any(), np.bool)
+assert_type(AR_f8.any(), np.bool)
+assert_type(AR_f8.any(axis=0), np.bool | npt.NDArray[np.bool])
+assert_type(AR_f8.any(keepdims=True), np.bool | npt.NDArray[np.bool])
+assert_type(AR_f8.any(out=B), SubClass)
+
+assert_type(f8.argmax(), np.intp)
+assert_type(AR_f8.argmax(), np.intp)
+assert_type(AR_f8.argmax(axis=0), Any)
+assert_type(AR_f8.argmax(out=AR_i8), npt.NDArray[np.intp])
+
+assert_type(f8.argmin(), np.intp)
+assert_type(AR_f8.argmin(), np.intp)
+assert_type(AR_f8.argmin(axis=0), Any)
+assert_type(AR_f8.argmin(out=AR_i8), npt.NDArray[np.intp])
+
+assert_type(f8.argsort(), npt.NDArray[np.intp])
+assert_type(AR_f8.argsort(), npt.NDArray[np.intp])
+
+assert_type(f8.astype(np.int64).choose([()]), npt.NDArray[Any])
+assert_type(AR_f8.choose([0]), npt.NDArray[Any])
+assert_type(AR_f8.choose([0], out=B), SubClass)
+
+assert_type(f8.clip(1), npt.NDArray[Any])
+assert_type(AR_f8.clip(1), npt.NDArray[Any])
+assert_type(AR_f8.clip(None, 1), npt.NDArray[Any])
+assert_type(AR_f8.clip(1, out=B), SubClass)
+assert_type(AR_f8.clip(None, 1, out=B), SubClass)
+
+assert_type(f8.compress([0]), npt.NDArray[Any])
+assert_type(AR_f8.compress([0]), npt.NDArray[Any])
+assert_type(AR_f8.compress([0], out=B), SubClass)
+
+assert_type(f8.conj(), np.float64)
+assert_type(AR_f8.conj(), npt.NDArray[np.float64])
+assert_type(B.conj(), SubClass)
+
+assert_type(f8.conjugate(), np.float64)
+assert_type(AR_f8.conjugate(), npt.NDArray[np.float64])
+assert_type(B.conjugate(), SubClass)
+
+assert_type(f8.cumprod(), npt.NDArray[Any])
+assert_type(AR_f8.cumprod(), npt.NDArray[Any])
+assert_type(AR_f8.cumprod(out=B), SubClass)
+
+assert_type(f8.cumsum(), npt.NDArray[Any])
+assert_type(AR_f8.cumsum(), npt.NDArray[Any])
+assert_type(AR_f8.cumsum(out=B), SubClass)
+
+assert_type(f8.max(), Any)
+assert_type(AR_f8.max(), Any)
+assert_type(AR_f8.max(axis=0), Any)
+assert_type(AR_f8.max(keepdims=True), Any)
+assert_type(AR_f8.max(out=B), SubClass)
+
+assert_type(f8.mean(), Any)
+assert_type(AR_f8.mean(), Any)
+assert_type(AR_f8.mean(axis=0), Any)
+assert_type(AR_f8.mean(keepdims=True), Any)
+assert_type(AR_f8.mean(out=B), SubClass)
+
+assert_type(f8.min(), Any)
+assert_type(AR_f8.min(), Any)
+assert_type(AR_f8.min(axis=0), Any)
+assert_type(AR_f8.min(keepdims=True), Any)
+assert_type(AR_f8.min(out=B), SubClass)
+
+assert_type(f8.prod(), Any)
+assert_type(AR_f8.prod(), Any)
+assert_type(AR_f8.prod(axis=0), Any)
+assert_type(AR_f8.prod(keepdims=True), Any)
+assert_type(AR_f8.prod(out=B), SubClass)
+
+assert_type(f8.round(), np.float64)
+assert_type(AR_f8.round(), npt.NDArray[np.float64])
+assert_type(AR_f8.round(out=B), SubClass)
+
+assert_type(f8.repeat(1), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(f8.repeat(1, axis=0), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(AR_f8.repeat(1), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(AR_f8.repeat(1, axis=0), npt.NDArray[np.float64])
+assert_type(B.repeat(1), np.ndarray[tuple[int], np.dtype[np.object_]])
+assert_type(B.repeat(1, axis=0), npt.NDArray[np.object_])
+
+assert_type(f8.std(), Any)
+assert_type(AR_f8.std(), Any)
+assert_type(AR_f8.std(axis=0), Any)
+assert_type(AR_f8.std(keepdims=True), Any)
+assert_type(AR_f8.std(out=B), SubClass)
+
+assert_type(f8.sum(), Any)
+assert_type(AR_f8.sum(), Any)
+assert_type(AR_f8.sum(axis=0), Any)
+assert_type(AR_f8.sum(keepdims=True), Any)
+assert_type(AR_f8.sum(out=B), SubClass)
+
+assert_type(f8.take(0), np.float64)
+assert_type(AR_f8.take(0), np.float64)
+assert_type(AR_f8.take([0]), npt.NDArray[np.float64])
+assert_type(AR_f8.take(0, out=B), SubClass)
+assert_type(AR_f8.take([0], out=B), SubClass)
+
+assert_type(f8.var(), Any)
+assert_type(AR_f8.var(), Any)
+assert_type(AR_f8.var(axis=0), Any)
+assert_type(AR_f8.var(keepdims=True), Any)
+assert_type(AR_f8.var(out=B), SubClass)
+
+assert_type(AR_f8.argpartition([0]), npt.NDArray[np.intp])
+
+assert_type(AR_f8.diagonal(), npt.NDArray[np.float64])
+
+assert_type(AR_f8.dot(1), npt.NDArray[Any])
+assert_type(AR_f8.dot([1]), Any)
+assert_type(AR_f8.dot(1, out=B), SubClass)
+
+assert_type(AR_f8.nonzero(), tuple[np.ndarray[tuple[int], np.dtype[np.intp]], ...])
+
+assert_type(AR_f8.searchsorted(1), np.intp)
+assert_type(AR_f8.searchsorted([1]), npt.NDArray[np.intp])
+
+assert_type(AR_f8.trace(), Any)
+assert_type(AR_f8.trace(out=B), SubClass)
+
+assert_type(AR_f8.item(), float)
+assert_type(AR_U.item(), str)
+
+assert_type(AR_f8.ravel(), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(AR_U.ravel(), np.ndarray[tuple[int], np.dtype[np.str_]])
+
+assert_type(AR_f8.flatten(), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(AR_U.flatten(), np.ndarray[tuple[int], np.dtype[np.str_]])
+
+assert_type(AR_i8.reshape(None), npt.NDArray[np.int64])
+assert_type(AR_f8.reshape(-1), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(AR_c8.reshape(2, 3, 4, 5), np.ndarray[tuple[int, int, int, int], np.dtype[np.complex64]])
+assert_type(AR_m.reshape(()), np.ndarray[tuple[()], np.dtype[np.timedelta64]])
+assert_type(AR_U.reshape([]), np.ndarray[tuple[()], np.dtype[np.str_]])
+assert_type(AR_V.reshape((480, 720, 4)), np.ndarray[tuple[int, int, int], np.dtype[np.void]])
+
+assert_type(int(AR_f8), int)
+assert_type(int(AR_U), int)
+
+assert_type(float(AR_f8), float)
+assert_type(float(AR_U), float)
+
+assert_type(complex(AR_f8), complex)
+
+assert_type(operator.index(AR_i8), int)
+
+assert_type(AR_f8.__array_wrap__(B), npt.NDArray[np.object_])
+
+assert_type(AR_V[0], Any)
+assert_type(AR_V[0, 0], Any)
+assert_type(AR_V[AR_i8], npt.NDArray[np.void])
+assert_type(AR_V[AR_i8, AR_i8], npt.NDArray[np.void])
+assert_type(AR_V[AR_i8, None], npt.NDArray[np.void])
+assert_type(AR_V[0, ...], npt.NDArray[np.void])
+assert_type(AR_V[[0]], npt.NDArray[np.void])
+assert_type(AR_V[[0], [0]], npt.NDArray[np.void])
+assert_type(AR_V[:], npt.NDArray[np.void])
+assert_type(AR_V["a"], npt.NDArray[Any])
+assert_type(AR_V[["a", "b"]], npt.NDArray[np.void])
+
+assert_type(AR_f8.dump("test_file"), None)
+assert_type(AR_f8.dump(b"test_file"), None)
+with open("test_file", "wb") as f:
+    assert_type(AR_f8.dump(f), None)
+
+assert_type(AR_f8.__array_finalize__(None), None)
+assert_type(AR_f8.__array_finalize__(B), None)
+assert_type(AR_f8.__array_finalize__(AR_f8), None)
+
+assert_type(f8.device, Literal["cpu"])
+assert_type(AR_f8.device, Literal["cpu"])
+
+assert_type(f8.to_device("cpu"), np.float64)
+assert_type(i8.to_device("cpu"), np.int64)
+assert_type(AR_f8.to_device("cpu"), npt.NDArray[np.float64])
+assert_type(AR_i8.to_device("cpu"), npt.NDArray[np.int64])
+assert_type(AR_u1.to_device("cpu"), npt.NDArray[np.uint8])
+assert_type(AR_c8.to_device("cpu"), npt.NDArray[np.complex64])
+assert_type(AR_m.to_device("cpu"), npt.NDArray[np.timedelta64])
+
+assert_type(f8.__array_namespace__(), ModuleType)
+assert_type(AR_f8.__array_namespace__(), ModuleType)
+
+assert_type(iter(AR_f8), Iterator[Any])  # any-D
+assert_type(iter(AR_f8_1d), Iterator[np.float64])  # 1-D
+assert_type(iter(AR_f8_2d), Iterator[npt.NDArray[np.float64]])  # 2-D
+assert_type(iter(AR_f8_3d), Iterator[npt.NDArray[np.float64]])  # 3-D
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_shape_manipulation.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_shape_manipulation.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..95aa4d9de9a35b57b5ea094dad9689d3ea6b0109
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ndarray_shape_manipulation.pyi
@@ -0,0 +1,47 @@
+from typing import TypeAlias, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+_ArrayND: TypeAlias = npt.NDArray[np.int64]
+_Array2D: TypeAlias = np.ndarray[tuple[int, int], np.dtype[np.int8]]
+_Array3D: TypeAlias = np.ndarray[tuple[int, int, int], np.dtype[np.bool]]
+
+_nd: _ArrayND
+_2d: _Array2D
+_3d: _Array3D
+
+# reshape
+assert_type(_nd.reshape(None), npt.NDArray[np.int64])
+assert_type(_nd.reshape(4), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(_nd.reshape((4,)), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(_nd.reshape(2, 2), np.ndarray[tuple[int, int], np.dtype[np.int64]])
+assert_type(_nd.reshape((2, 2)), np.ndarray[tuple[int, int], np.dtype[np.int64]])
+
+assert_type(_nd.reshape((2, 2), order="C"),  np.ndarray[tuple[int, int], np.dtype[np.int64]])
+assert_type(_nd.reshape(4, order="C"),  np.ndarray[tuple[int], np.dtype[np.int64]])
+
+# resize does not return a value
+
+# transpose
+assert_type(_nd.transpose(), npt.NDArray[np.int64])
+assert_type(_nd.transpose(1, 0), npt.NDArray[np.int64])
+assert_type(_nd.transpose((1, 0)), npt.NDArray[np.int64])
+
+# swapaxes
+assert_type(_nd.swapaxes(0, 1), _ArrayND)
+assert_type(_2d.swapaxes(0, 1), _Array2D)
+assert_type(_3d.swapaxes(0, 1), _Array3D)
+
+# flatten
+assert_type(_nd.flatten(), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(_nd.flatten("C"), np.ndarray[tuple[int], np.dtype[np.int64]])
+
+# ravel
+assert_type(_nd.ravel(), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(_nd.ravel("C"), np.ndarray[tuple[int], np.dtype[np.int64]])
+
+# squeeze
+assert_type(_nd.squeeze(), npt.NDArray[np.int64])
+assert_type(_nd.squeeze(0), npt.NDArray[np.int64])
+assert_type(_nd.squeeze((0, 2)), npt.NDArray[np.int64])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nditer.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nditer.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..bade7ac7a08c056b5f00e5fef34439d41591ee4d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nditer.pyi
@@ -0,0 +1,49 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+nditer_obj: np.nditer
+
+assert_type(np.nditer([0, 1], flags=["c_index"]), np.nditer)
+assert_type(np.nditer([0, 1], op_flags=[["readonly", "readonly"]]), np.nditer)
+assert_type(np.nditer([0, 1], op_dtypes=np.int_), np.nditer)
+assert_type(np.nditer([0, 1], order="C", casting="no"), np.nditer)
+
+assert_type(nditer_obj.dtypes, tuple[np.dtype, ...])
+assert_type(nditer_obj.finished, bool)
+assert_type(nditer_obj.has_delayed_bufalloc, bool)
+assert_type(nditer_obj.has_index, bool)
+assert_type(nditer_obj.has_multi_index, bool)
+assert_type(nditer_obj.index, int)
+assert_type(nditer_obj.iterationneedsapi, bool)
+assert_type(nditer_obj.iterindex, int)
+assert_type(nditer_obj.iterrange, tuple[int, ...])
+assert_type(nditer_obj.itersize, int)
+assert_type(nditer_obj.itviews, tuple[npt.NDArray[Any], ...])
+assert_type(nditer_obj.multi_index, tuple[int, ...])
+assert_type(nditer_obj.ndim, int)
+assert_type(nditer_obj.nop, int)
+assert_type(nditer_obj.operands, tuple[npt.NDArray[Any], ...])
+assert_type(nditer_obj.shape, tuple[int, ...])
+assert_type(nditer_obj.value, tuple[npt.NDArray[Any], ...])
+
+assert_type(nditer_obj.close(), None)
+assert_type(nditer_obj.copy(), np.nditer)
+assert_type(nditer_obj.debug_print(), None)
+assert_type(nditer_obj.enable_external_loop(), None)
+assert_type(nditer_obj.iternext(), bool)
+assert_type(nditer_obj.remove_axis(0), None)
+assert_type(nditer_obj.remove_multi_index(), None)
+assert_type(nditer_obj.reset(), None)
+
+assert_type(len(nditer_obj), int)
+assert_type(iter(nditer_obj), np.nditer)
+assert_type(next(nditer_obj), tuple[npt.NDArray[Any], ...])
+assert_type(nditer_obj.__copy__(), np.nditer)
+with nditer_obj as f:
+    assert_type(f, np.nditer)
+assert_type(nditer_obj[0], npt.NDArray[Any])
+assert_type(nditer_obj[:], tuple[npt.NDArray[Any], ...])
+nditer_obj[0] = 0
+nditer_obj[:] = [0, 1]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nested_sequence.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nested_sequence.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..8ac7ef831d6c326e77291389b54aa84793990296
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/nested_sequence.pyi
@@ -0,0 +1,25 @@
+from collections.abc import Sequence
+from typing import Any, assert_type
+
+from numpy._typing import _NestedSequence
+
+a: Sequence[int]
+b: Sequence[Sequence[int]]
+c: Sequence[Sequence[Sequence[int]]]
+d: Sequence[Sequence[Sequence[Sequence[int]]]]
+e: Sequence[bool]
+f: tuple[int, ...]
+g: list[int]
+h: Sequence[Any]
+
+def func(a: _NestedSequence[int]) -> None: ...
+
+assert_type(func(a), None)
+assert_type(func(b), None)
+assert_type(func(c), None)
+assert_type(func(d), None)
+assert_type(func(e), None)
+assert_type(func(f), None)
+assert_type(func(g), None)
+assert_type(func(h), None)
+assert_type(func(range(15)), None)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/npyio.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/npyio.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..88fe215be49f9bb2c360ecf5a150685c63684e43
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/npyio.pyi
@@ -0,0 +1,83 @@
+import pathlib
+import re
+import zipfile
+from collections.abc import Mapping
+from typing import IO, Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy.lib._npyio_impl import BagObj
+
+str_path: str
+pathlib_path: pathlib.Path
+str_file: IO[str]
+bytes_file: IO[bytes]
+
+npz_file: np.lib.npyio.NpzFile
+
+AR_i8: npt.NDArray[np.int64]
+AR_LIKE_f8: list[float]
+
+class BytesWriter:
+    def write(self, data: bytes) -> None: ...
+
+class BytesReader:
+    def read(self, n: int = ...) -> bytes: ...
+    def seek(self, offset: int, whence: int = ...) -> int: ...
+
+bytes_writer: BytesWriter
+bytes_reader: BytesReader
+
+assert_type(npz_file.zip, zipfile.ZipFile | None)
+assert_type(npz_file.fid, IO[str] | None)
+assert_type(npz_file.files, list[str])
+assert_type(npz_file.allow_pickle, bool)
+assert_type(npz_file.pickle_kwargs, Mapping[str, Any] | None)
+assert_type(npz_file.f, BagObj[np.lib.npyio.NpzFile])
+assert_type(npz_file["test"], npt.NDArray[Any])
+assert_type(len(npz_file), int)
+with npz_file as f:
+    assert_type(f, np.lib.npyio.NpzFile)
+
+assert_type(np.load(bytes_file), Any)
+assert_type(np.load(pathlib_path, allow_pickle=True), Any)
+assert_type(np.load(str_path, encoding="bytes"), Any)
+assert_type(np.load(bytes_reader), Any)
+
+assert_type(np.save(bytes_file, AR_LIKE_f8), None)
+assert_type(np.save(pathlib_path, AR_i8, allow_pickle=True), None)
+assert_type(np.save(str_path, AR_LIKE_f8), None)
+assert_type(np.save(bytes_writer, AR_LIKE_f8), None)
+
+assert_type(np.savez(bytes_file, AR_LIKE_f8), None)
+assert_type(np.savez(pathlib_path, ar1=AR_i8, ar2=AR_i8), None)
+assert_type(np.savez(str_path, AR_LIKE_f8, ar1=AR_i8), None)
+assert_type(np.savez(bytes_writer, AR_LIKE_f8, ar1=AR_i8), None)
+
+assert_type(np.savez_compressed(bytes_file, AR_LIKE_f8), None)
+assert_type(np.savez_compressed(pathlib_path, ar1=AR_i8, ar2=AR_i8), None)
+assert_type(np.savez_compressed(str_path, AR_LIKE_f8, ar1=AR_i8), None)
+assert_type(np.savez_compressed(bytes_writer, AR_LIKE_f8, ar1=AR_i8), None)
+
+assert_type(np.loadtxt(bytes_file), npt.NDArray[np.float64])
+assert_type(np.loadtxt(pathlib_path, dtype=np.str_), npt.NDArray[np.str_])
+assert_type(np.loadtxt(str_path, dtype=str, skiprows=2), npt.NDArray[Any])
+assert_type(np.loadtxt(str_file, comments="test"), npt.NDArray[np.float64])
+assert_type(np.loadtxt(str_file, comments=None), npt.NDArray[np.float64])
+assert_type(np.loadtxt(str_path, delimiter="\n"), npt.NDArray[np.float64])
+assert_type(np.loadtxt(str_path, ndmin=2), npt.NDArray[np.float64])
+assert_type(np.loadtxt(["1", "2", "3"]), npt.NDArray[np.float64])
+
+assert_type(np.fromregex(bytes_file, "test", np.float64), npt.NDArray[np.float64])
+assert_type(np.fromregex(str_file, b"test", dtype=float), npt.NDArray[Any])
+assert_type(np.fromregex(str_path, re.compile("test"), dtype=np.str_, encoding="utf8"), npt.NDArray[np.str_])
+assert_type(np.fromregex(pathlib_path, "test", np.float64), npt.NDArray[np.float64])
+assert_type(np.fromregex(bytes_reader, "test", np.float64), npt.NDArray[np.float64])
+
+assert_type(np.genfromtxt(bytes_file), npt.NDArray[Any])
+assert_type(np.genfromtxt(pathlib_path, dtype=np.str_), npt.NDArray[np.str_])
+assert_type(np.genfromtxt(str_path, dtype=str, skip_header=2), npt.NDArray[Any])
+assert_type(np.genfromtxt(str_file, comments="test"), npt.NDArray[Any])
+assert_type(np.genfromtxt(str_path, delimiter="\n"), npt.NDArray[Any])
+assert_type(np.genfromtxt(str_path, ndmin=2), npt.NDArray[Any])
+assert_type(np.genfromtxt(["1", "2", "3"], ndmin=2), npt.NDArray[Any])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/numeric.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/numeric.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..fb6bbc6b76177f9d7de1edf4cf614824cc3a964a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/numeric.pyi
@@ -0,0 +1,170 @@
+"""
+Tests for :mod:`_core.numeric`.
+
+Does not include tests which fall under ``array_constructors``.
+
+"""
+
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+class SubClass(npt.NDArray[np.int64]): ...
+
+i8: np.int64
+
+AR_b: npt.NDArray[np.bool]
+AR_u8: npt.NDArray[np.uint64]
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+AR_m: npt.NDArray[np.timedelta64]
+AR_O: npt.NDArray[np.object_]
+
+_sub_nd_i8: SubClass
+
+_to_1d_bool: list[bool]
+_to_1d_int: list[int]
+_to_1d_float: list[float]
+_to_1d_complex: list[complex]
+
+###
+
+assert_type(np.count_nonzero(i8), np.intp)
+assert_type(np.count_nonzero(AR_i8), np.intp)
+assert_type(np.count_nonzero(_to_1d_int), np.intp)
+assert_type(np.count_nonzero(AR_i8, keepdims=True), npt.NDArray[np.intp])
+assert_type(np.count_nonzero(AR_i8, axis=0), Any)
+
+assert_type(np.isfortran(i8), bool)
+assert_type(np.isfortran(AR_i8), bool)
+
+assert_type(np.argwhere(i8), np.ndarray[tuple[int, int], np.dtype[np.intp]])
+assert_type(np.argwhere(AR_i8), np.ndarray[tuple[int, int], np.dtype[np.intp]])
+
+assert_type(np.flatnonzero(i8), np.ndarray[tuple[int], np.dtype[np.intp]])
+assert_type(np.flatnonzero(AR_i8), np.ndarray[tuple[int], np.dtype[np.intp]])
+
+# correlate
+assert_type(np.correlate(AR_i8, AR_i8), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.correlate(AR_b, AR_b), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.correlate(AR_u8, AR_u8), np.ndarray[tuple[int], np.dtype[np.uint64]])
+assert_type(np.correlate(AR_i8, AR_i8), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.correlate(AR_f8, AR_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.correlate(AR_f8, AR_i8), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.correlate(AR_c16, AR_c16), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(np.correlate(AR_c16, AR_f8), np.ndarray[tuple[int], np.dtype[np.complex128 | Any]])
+assert_type(np.correlate(AR_m, AR_m), np.ndarray[tuple[int], np.dtype[np.timedelta64]])
+assert_type(np.correlate(AR_i8, AR_m), np.ndarray[tuple[int], np.dtype[np.timedelta64 | Any]])
+assert_type(np.correlate(AR_O, AR_O), np.ndarray[tuple[int], np.dtype[np.object_]])
+assert_type(np.correlate(_to_1d_bool, _to_1d_bool), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.correlate(_to_1d_int, _to_1d_int), np.ndarray[tuple[int], np.dtype[np.int_ | Any]])
+assert_type(np.correlate(_to_1d_float, _to_1d_float), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.correlate(_to_1d_complex, _to_1d_complex), np.ndarray[tuple[int], np.dtype[np.complex128 | Any]])
+
+# convolve (same as correlate)
+assert_type(np.convolve(AR_i8, AR_i8), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.convolve(AR_b, AR_b), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.convolve(AR_u8, AR_u8), np.ndarray[tuple[int], np.dtype[np.uint64]])
+assert_type(np.convolve(AR_i8, AR_i8), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(np.convolve(AR_f8, AR_f8), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(np.convolve(AR_f8, AR_i8), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.convolve(AR_c16, AR_c16), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(np.convolve(AR_c16, AR_f8), np.ndarray[tuple[int], np.dtype[np.complex128 | Any]])
+assert_type(np.convolve(AR_m, AR_m), np.ndarray[tuple[int], np.dtype[np.timedelta64]])
+assert_type(np.convolve(AR_i8, AR_m), np.ndarray[tuple[int], np.dtype[np.timedelta64 | Any]])
+assert_type(np.convolve(AR_O, AR_O), np.ndarray[tuple[int], np.dtype[np.object_]])
+assert_type(np.convolve(_to_1d_bool, _to_1d_bool), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.convolve(_to_1d_int, _to_1d_int), np.ndarray[tuple[int], np.dtype[np.int_ | Any]])
+assert_type(np.convolve(_to_1d_float, _to_1d_float), np.ndarray[tuple[int], np.dtype[np.float64 | Any]])
+assert_type(np.convolve(_to_1d_complex, _to_1d_complex), np.ndarray[tuple[int], np.dtype[np.complex128 | Any]])
+
+# outer (very similar to above, but 2D output)
+assert_type(np.outer(AR_i8, AR_i8), np.ndarray[tuple[int, int], np.dtype[np.int64]])
+assert_type(np.outer(AR_b, AR_b), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.outer(AR_u8, AR_u8), np.ndarray[tuple[int, int], np.dtype[np.uint64]])
+assert_type(np.outer(AR_i8, AR_i8), np.ndarray[tuple[int, int], np.dtype[np.int64]])
+assert_type(np.outer(AR_f8, AR_f8), np.ndarray[tuple[int, int], np.dtype[np.float64]])
+assert_type(np.outer(AR_f8, AR_i8), np.ndarray[tuple[int, int], np.dtype[np.float64 | Any]])
+assert_type(np.outer(AR_c16, AR_c16), np.ndarray[tuple[int, int], np.dtype[np.complex128]])
+assert_type(np.outer(AR_c16, AR_f8), np.ndarray[tuple[int, int], np.dtype[np.complex128 | Any]])
+assert_type(np.outer(AR_m, AR_m), np.ndarray[tuple[int, int], np.dtype[np.timedelta64]])
+assert_type(np.outer(AR_i8, AR_m), np.ndarray[tuple[int, int], np.dtype[np.timedelta64 | Any]])
+assert_type(np.outer(AR_O, AR_O), np.ndarray[tuple[int, int], np.dtype[np.object_]])
+assert_type(np.outer(AR_i8, AR_i8, out=_sub_nd_i8), SubClass)
+assert_type(np.outer(_to_1d_bool, _to_1d_bool), np.ndarray[tuple[int, int], np.dtype[np.bool]])
+assert_type(np.outer(_to_1d_int, _to_1d_int), np.ndarray[tuple[int, int], np.dtype[np.int_ | Any]])
+assert_type(np.outer(_to_1d_float, _to_1d_float), np.ndarray[tuple[int, int], np.dtype[np.float64 | Any]])
+assert_type(np.outer(_to_1d_complex, _to_1d_complex), np.ndarray[tuple[int, int], np.dtype[np.complex128 | Any]])
+
+# tensordot
+assert_type(np.tensordot(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.tensordot(AR_b, AR_b), npt.NDArray[np.bool])
+assert_type(np.tensordot(AR_u8, AR_u8), npt.NDArray[np.uint64])
+assert_type(np.tensordot(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.tensordot(AR_f8, AR_f8), npt.NDArray[np.float64])
+assert_type(np.tensordot(AR_f8, AR_i8), npt.NDArray[np.float64 | Any])
+assert_type(np.tensordot(AR_c16, AR_c16), npt.NDArray[np.complex128])
+assert_type(np.tensordot(AR_c16, AR_f8), npt.NDArray[np.complex128 | Any])
+assert_type(np.tensordot(AR_m, AR_m), npt.NDArray[np.timedelta64])
+assert_type(np.tensordot(AR_O, AR_O), npt.NDArray[np.object_])
+assert_type(np.tensordot(_to_1d_bool, _to_1d_bool), npt.NDArray[np.bool])
+assert_type(np.tensordot(_to_1d_int, _to_1d_int), npt.NDArray[np.int_ | Any])
+assert_type(np.tensordot(_to_1d_float, _to_1d_float), npt.NDArray[np.float64 | Any])
+assert_type(np.tensordot(_to_1d_complex, _to_1d_complex), npt.NDArray[np.complex128 | Any])
+
+# cross
+assert_type(np.cross(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.cross(AR_u8, AR_u8), npt.NDArray[np.uint64])
+assert_type(np.cross(AR_i8, AR_i8), npt.NDArray[np.int64])
+assert_type(np.cross(AR_f8, AR_f8), npt.NDArray[np.float64])
+assert_type(np.cross(AR_f8, AR_i8), npt.NDArray[np.float64 | Any])
+assert_type(np.cross(AR_c16, AR_c16), npt.NDArray[np.complex128])
+assert_type(np.cross(AR_c16, AR_f8), npt.NDArray[np.complex128 | Any])
+assert_type(np.cross(AR_m, AR_m), npt.NDArray[np.timedelta64])
+assert_type(np.cross(AR_O, AR_O), npt.NDArray[np.object_])
+assert_type(np.cross(_to_1d_int, _to_1d_int), npt.NDArray[np.int_ | Any])
+assert_type(np.cross(_to_1d_float, _to_1d_float), npt.NDArray[np.float64 | Any])
+assert_type(np.cross(_to_1d_complex, _to_1d_complex), npt.NDArray[np.complex128 | Any])
+
+assert_type(np.isscalar(i8), bool)
+assert_type(np.isscalar(AR_i8), bool)
+assert_type(np.isscalar(_to_1d_int), bool)
+
+assert_type(np.roll(AR_i8, 1), npt.NDArray[np.int64])
+assert_type(np.roll(AR_i8, (1, 2)), npt.NDArray[np.int64])
+assert_type(np.roll(_to_1d_int, 1), npt.NDArray[Any])
+
+assert_type(np.rollaxis(AR_i8, 0, 1), npt.NDArray[np.int64])
+
+assert_type(np.moveaxis(AR_i8, 0, 1), npt.NDArray[np.int64])
+assert_type(np.moveaxis(AR_i8, (0, 1), (1, 2)), npt.NDArray[np.int64])
+
+assert_type(np.indices([0, 1, 2]), npt.NDArray[np.int_])
+assert_type(np.indices([0, 1, 2], sparse=True), tuple[npt.NDArray[np.int_], ...])
+assert_type(np.indices([0, 1, 2], dtype=np.float64), npt.NDArray[np.float64])
+assert_type(np.indices([0, 1, 2], sparse=True, dtype=np.float64), tuple[npt.NDArray[np.float64], ...])
+assert_type(np.indices([0, 1, 2], dtype=float), npt.NDArray[Any])
+assert_type(np.indices([0, 1, 2], sparse=True, dtype=float), tuple[npt.NDArray[Any], ...])
+
+assert_type(np.binary_repr(1), str)
+
+assert_type(np.base_repr(1), str)
+
+assert_type(np.allclose(i8, AR_i8), bool)
+assert_type(np.allclose(_to_1d_int, AR_i8), bool)
+assert_type(np.allclose(AR_i8, AR_i8), bool)
+
+assert_type(np.isclose(i8, i8), np.bool)
+assert_type(np.isclose(i8, AR_i8), npt.NDArray[np.bool])
+assert_type(np.isclose(_to_1d_int, _to_1d_int), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(np.isclose(AR_i8, AR_i8), npt.NDArray[np.bool])
+
+assert_type(np.array_equal(i8, AR_i8), bool)
+assert_type(np.array_equal(_to_1d_int, AR_i8), bool)
+assert_type(np.array_equal(AR_i8, AR_i8), bool)
+
+assert_type(np.array_equiv(i8, AR_i8), bool)
+assert_type(np.array_equiv(_to_1d_int, AR_i8), bool)
+assert_type(np.array_equiv(AR_i8, AR_i8), bool)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/numerictypes.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/numerictypes.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..b5749c167d5fb41eec9e7a56b6b2f11572f49652
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/numerictypes.pyi
@@ -0,0 +1,16 @@
+from typing import Literal, assert_type
+
+import numpy as np
+
+assert_type(np.ScalarType[0], type[int])
+assert_type(np.ScalarType[3], type[bool])
+assert_type(np.ScalarType[8], type[np.complex64])
+assert_type(np.ScalarType[9], type[np.complex128])
+assert_type(np.ScalarType[-1], type[np.void])
+assert_type(np.bool_(object()), np.bool)
+
+assert_type(np.typecodes["Character"], Literal["c"])
+assert_type(np.typecodes["Complex"], Literal["FDG"])
+assert_type(np.typecodes["All"], Literal["?bhilqnpBHILQNPefdgFDGSUVOMm"])
+
+assert_type(np.sctypeDict["uint8"], type[np.generic])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_polybase.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_polybase.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..53c5ba8a55966af257b42bc40ba893cf3fb71ba4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_polybase.pyi
@@ -0,0 +1,217 @@
+from collections.abc import Sequence
+from decimal import Decimal
+from typing import Any, Literal as L, TypeAlias, TypeVar, assert_type
+
+import numpy as np
+import numpy.polynomial as npp
+import numpy.typing as npt
+
+_Ar_x: TypeAlias = npt.NDArray[np.inexact | np.object_]
+_Ar_f: TypeAlias = npt.NDArray[np.floating]
+_Ar_c: TypeAlias = npt.NDArray[np.complexfloating]
+_Ar_O: TypeAlias = npt.NDArray[np.object_]
+
+_Ar_x_n: TypeAlias = np.ndarray[tuple[int], np.dtype[np.inexact | np.object_]]
+_Ar_f_n: TypeAlias = np.ndarray[tuple[int], np.dtype[np.floating]]
+_Ar_c_n: TypeAlias = np.ndarray[tuple[int], np.dtype[np.complexfloating]]
+_Ar_O_n: TypeAlias = np.ndarray[tuple[int], np.dtype[np.object_]]
+
+_Ar_x_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.float64 | Any]]
+_Ar_f_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.floating]]
+_Ar_c_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.complexfloating]]
+_Ar_O_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.object_]]
+
+_ScalarT = TypeVar("_ScalarT", bound=np.generic)
+_Ar_1d: TypeAlias = np.ndarray[tuple[int], np.dtype[_ScalarT]]
+
+_BasisName: TypeAlias = L["X"]
+
+SC_i: np.int_
+SC_i_co: int | np.int_
+SC_f: np.float64
+SC_f_co: float | np.float64 | np.int_
+SC_c: np.complex128
+SC_c_co: complex | np.complex128
+SC_O: Decimal
+
+AR_i: npt.NDArray[np.int_]
+AR_f: npt.NDArray[np.float64]
+AR_f_co: npt.NDArray[np.float64] | npt.NDArray[np.int_]
+AR_c: npt.NDArray[np.complex128]
+AR_c_co: npt.NDArray[np.complex128] | npt.NDArray[np.float64] | npt.NDArray[np.int_]
+AR_O: npt.NDArray[np.object_]
+AR_O_co: npt.NDArray[np.object_ | np.number]
+
+SQ_i: Sequence[int]
+SQ_f: Sequence[float]
+SQ_c: Sequence[complex]
+SQ_O: Sequence[Decimal]
+
+PS_poly: npp.Polynomial
+PS_cheb: npp.Chebyshev
+PS_herm: npp.Hermite
+PS_herme: npp.HermiteE
+PS_lag: npp.Laguerre
+PS_leg: npp.Legendre
+PS_all: (
+    npp.Polynomial
+    | npp.Chebyshev
+    | npp.Hermite
+    | npp.HermiteE
+    | npp.Laguerre
+    | npp.Legendre
+)
+
+# static- and classmethods
+
+assert_type(type(PS_poly).basis_name, None)
+assert_type(type(PS_cheb).basis_name, L["T"])
+assert_type(type(PS_herm).basis_name, L["H"])
+assert_type(type(PS_herme).basis_name, L["He"])
+assert_type(type(PS_lag).basis_name, L["L"])
+assert_type(type(PS_leg).basis_name, L["P"])
+
+assert_type(type(PS_all).__hash__, None)
+assert_type(type(PS_all).__array_ufunc__, None)
+assert_type(type(PS_all).maxpower, L[100])
+
+assert_type(type(PS_poly).fromroots(SC_i), npp.Polynomial)
+assert_type(type(PS_poly).fromroots(SQ_i), npp.Polynomial)
+assert_type(type(PS_poly).fromroots(AR_i), npp.Polynomial)
+assert_type(type(PS_cheb).fromroots(SC_f), npp.Chebyshev)
+assert_type(type(PS_cheb).fromroots(SQ_f), npp.Chebyshev)
+assert_type(type(PS_cheb).fromroots(AR_f_co), npp.Chebyshev)
+assert_type(type(PS_herm).fromroots(SC_c), npp.Hermite)
+assert_type(type(PS_herm).fromroots(SQ_c), npp.Hermite)
+assert_type(type(PS_herm).fromroots(AR_c_co), npp.Hermite)
+assert_type(type(PS_leg).fromroots(SC_O), npp.Legendre)
+assert_type(type(PS_leg).fromroots(SQ_O), npp.Legendre)
+assert_type(type(PS_leg).fromroots(AR_O_co), npp.Legendre)
+
+assert_type(type(PS_poly).identity(), npp.Polynomial)
+assert_type(type(PS_cheb).identity(symbol="z"), npp.Chebyshev)
+
+assert_type(type(PS_lag).basis(SC_i), npp.Laguerre)
+assert_type(type(PS_leg).basis(32, symbol="u"), npp.Legendre)
+
+assert_type(type(PS_herm).cast(PS_poly), npp.Hermite)
+assert_type(type(PS_herme).cast(PS_leg), npp.HermiteE)
+
+# attributes / properties
+
+assert_type(PS_all.coef, _Ar_x_n)
+assert_type(PS_all.domain, _Ar_x_2)
+assert_type(PS_all.window, _Ar_x_2)
+assert_type(PS_all.symbol, str)
+
+# instance methods
+
+assert_type(PS_all.has_samecoef(PS_all), bool)
+assert_type(PS_all.has_samedomain(PS_all), bool)
+assert_type(PS_all.has_samewindow(PS_all), bool)
+assert_type(PS_all.has_sametype(PS_all), bool)
+assert_type(PS_poly.has_sametype(PS_poly), bool)
+assert_type(PS_poly.has_sametype(PS_leg), bool)
+assert_type(PS_poly.has_sametype(NotADirectoryError), bool)
+
+assert_type(PS_poly.copy(), npp.Polynomial)
+assert_type(PS_cheb.copy(), npp.Chebyshev)
+assert_type(PS_herm.copy(), npp.Hermite)
+assert_type(PS_herme.copy(), npp.HermiteE)
+assert_type(PS_lag.copy(), npp.Laguerre)
+assert_type(PS_leg.copy(), npp.Legendre)
+
+assert_type(PS_leg.cutdeg(3), npp.Legendre)
+assert_type(PS_leg.trim(), npp.Legendre)
+assert_type(PS_leg.trim(tol=SC_f_co), npp.Legendre)
+assert_type(PS_leg.truncate(SC_i_co), npp.Legendre)
+
+assert_type(PS_all.convert(None, npp.Chebyshev), npp.Chebyshev)
+assert_type(PS_all.convert((0, 1), npp.Laguerre), npp.Laguerre)
+assert_type(PS_all.convert([0, 1], npp.Hermite, [-1, 1]), npp.Hermite)
+
+assert_type(PS_all.degree(), int)
+assert_type(PS_all.mapparms(), tuple[Any, Any])
+
+assert_type(PS_poly.integ(), npp.Polynomial)
+assert_type(PS_herme.integ(SC_i_co), npp.HermiteE)
+assert_type(PS_lag.integ(SC_i_co, SC_f_co), npp.Laguerre)
+assert_type(PS_poly.deriv(), npp.Polynomial)
+assert_type(PS_herm.deriv(SC_i_co), npp.Hermite)
+
+assert_type(PS_poly.roots(), _Ar_x_n)
+
+assert_type(
+    PS_poly.linspace(),
+    tuple[_Ar_1d[np.float64 | np.complex128], _Ar_1d[np.float64 | np.complex128]],
+)
+
+assert_type(
+    PS_poly.linspace(9),
+    tuple[_Ar_1d[np.float64 | np.complex128], _Ar_1d[np.float64 | np.complex128]],
+)
+
+assert_type(PS_cheb.fit(AR_c_co, AR_c_co, SC_i_co), npp.Chebyshev)
+assert_type(PS_leg.fit(AR_c_co, AR_c_co, AR_i), npp.Legendre)
+assert_type(PS_herm.fit(AR_c_co, AR_c_co, SQ_i), npp.Hermite)
+assert_type(PS_poly.fit(AR_c_co, SQ_c, SQ_i), npp.Polynomial)
+assert_type(PS_lag.fit(SQ_c, SQ_c, SQ_i, full=False), npp.Laguerre)
+assert_type(
+    PS_herme.fit(SQ_c, AR_c_co, SC_i_co, full=True),
+    tuple[npp.HermiteE, Sequence[np.inexact | np.int32]],
+)
+
+# custom operations
+
+assert_type(PS_all.__hash__, None)
+assert_type(PS_all.__array_ufunc__, None)
+
+assert_type(str(PS_all), str)
+assert_type(repr(PS_all), str)
+assert_type(format(PS_all), str)
+
+assert_type(len(PS_all), int)
+assert_type(next(iter(PS_all)), np.float64 | Any)
+
+assert_type(PS_all(SC_f_co), np.float64 | Any)
+assert_type(PS_all(SC_c_co), np.complex128 | Any)
+assert_type(PS_all(Decimal()), np.float64 | Any)
+assert_type(PS_poly(SQ_f), npt.NDArray[np.float64 | Any])
+assert_type(PS_poly(SQ_c), npt.NDArray[np.complex128 | Any])
+assert_type(PS_poly(SQ_O), npt.NDArray[np.object_])
+assert_type(PS_poly(AR_f), npt.NDArray[np.float64 | Any])
+assert_type(PS_poly(AR_c), npt.NDArray[np.complex128 | Any])
+assert_type(PS_poly(AR_O), npt.NDArray[np.object_])
+assert_type(PS_all(PS_poly), npp.Polynomial)
+
+assert_type(PS_poly == PS_poly, bool)
+assert_type(PS_poly != PS_poly, bool)
+
+assert_type(-PS_poly, npp.Polynomial)
+assert_type(+PS_poly, npp.Polynomial)
+
+assert_type(PS_poly + 5, npp.Polynomial)
+assert_type(PS_poly - 5, npp.Polynomial)
+assert_type(PS_poly * 5, npp.Polynomial)
+assert_type(PS_poly / 5, npp.Polynomial)
+assert_type(PS_poly // 5, npp.Polynomial)
+assert_type(PS_poly % 5, npp.Polynomial)
+
+assert_type(PS_poly + PS_leg, npp.Polynomial)
+assert_type(PS_poly - PS_leg, npp.Polynomial)
+assert_type(PS_poly * PS_leg, npp.Polynomial)
+assert_type(PS_poly / PS_leg, npp.Polynomial)
+assert_type(PS_poly // PS_leg, npp.Polynomial)
+assert_type(PS_poly % PS_leg, npp.Polynomial)
+
+assert_type(5 + PS_poly, npp.Polynomial)
+assert_type(5 - PS_poly, npp.Polynomial)
+assert_type(5 * PS_poly, npp.Polynomial)
+assert_type(5 / PS_poly, npp.Polynomial)
+assert_type(5 // PS_poly, npp.Polynomial)
+assert_type(5 % PS_poly, npp.Polynomial)
+assert_type(divmod(PS_poly, 5), tuple[npp.Polynomial, npp.Polynomial])
+assert_type(divmod(5, PS_poly), tuple[npp.Polynomial, npp.Polynomial])
+
+assert_type(PS_poly**1, npp.Polynomial)
+assert_type(PS_poly**1.0, npp.Polynomial)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_polyutils.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_polyutils.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..0ab947be59ab9e5ccbe30c29a5a8a20fa6a485bc
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_polyutils.pyi
@@ -0,0 +1,218 @@
+from collections.abc import Sequence
+from decimal import Decimal
+from fractions import Fraction
+from typing import Literal as L, TypeAlias, assert_type
+
+import numpy as np
+import numpy.polynomial.polyutils as pu
+import numpy.typing as npt
+from numpy.polynomial._polytypes import _Tuple2
+
+_ArrFloat1D: TypeAlias = np.ndarray[tuple[int], np.dtype[np.floating]]
+_ArrComplex1D: TypeAlias = np.ndarray[tuple[int], np.dtype[np.complexfloating]]
+_ArrObject1D: TypeAlias = np.ndarray[tuple[int], np.dtype[np.object_]]
+
+_ArrFloat1D_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.float64]]
+_ArrComplex1D_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.complex128]]
+_ArrObject1D_2: TypeAlias = np.ndarray[tuple[L[2]], np.dtype[np.object_]]
+
+num_int: int
+num_float: float
+num_complex: complex
+# will result in an `object_` dtype
+num_object: Decimal | Fraction
+
+sct_int: np.int_
+sct_float: np.float64
+sct_complex: np.complex128
+sct_object: np.object_  # doesn't exist at runtime
+
+arr_int: npt.NDArray[np.int_]
+arr_float: npt.NDArray[np.float64]
+arr_complex: npt.NDArray[np.complex128]
+arr_object: npt.NDArray[np.object_]
+
+seq_num_int: Sequence[int]
+seq_num_float: Sequence[float]
+seq_num_complex: Sequence[complex]
+seq_num_object: Sequence[Decimal | Fraction]
+
+seq_sct_int: Sequence[np.int_]
+seq_sct_float: Sequence[np.float64]
+seq_sct_complex: Sequence[np.complex128]
+seq_sct_object: Sequence[np.object_]
+
+seq_arr_int: Sequence[npt.NDArray[np.int_]]
+seq_arr_float: Sequence[npt.NDArray[np.float64]]
+seq_arr_complex: Sequence[npt.NDArray[np.complex128]]
+seq_arr_object: Sequence[npt.NDArray[np.object_]]
+
+seq_seq_num_int: Sequence[Sequence[int]]
+seq_seq_num_float: Sequence[Sequence[float]]
+seq_seq_num_complex: Sequence[Sequence[complex]]
+seq_seq_num_object: Sequence[Sequence[Decimal | Fraction]]
+
+seq_seq_sct_int: Sequence[Sequence[np.int_]]
+seq_seq_sct_float: Sequence[Sequence[np.float64]]
+seq_seq_sct_complex: Sequence[Sequence[np.complex128]]
+seq_seq_sct_object: Sequence[Sequence[np.object_]]  # doesn't exist at runtime
+
+# as_series
+
+assert_type(pu.as_series(arr_int), list[_ArrFloat1D])
+assert_type(pu.as_series(arr_float), list[_ArrFloat1D])
+assert_type(pu.as_series(arr_complex), list[_ArrComplex1D])
+assert_type(pu.as_series(arr_object), list[_ArrObject1D])
+
+assert_type(pu.as_series(seq_num_int), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_num_float), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_num_complex), list[_ArrComplex1D])
+assert_type(pu.as_series(seq_num_object), list[_ArrObject1D])
+
+assert_type(pu.as_series(seq_sct_int), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_sct_float), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_sct_complex), list[_ArrComplex1D])
+assert_type(pu.as_series(seq_sct_object), list[_ArrObject1D])
+
+assert_type(pu.as_series(seq_arr_int), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_arr_float), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_arr_complex), list[_ArrComplex1D])
+assert_type(pu.as_series(seq_arr_object), list[_ArrObject1D])
+
+assert_type(pu.as_series(seq_seq_num_int), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_seq_num_float), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_seq_num_complex), list[_ArrComplex1D])
+assert_type(pu.as_series(seq_seq_num_object), list[_ArrObject1D])
+
+assert_type(pu.as_series(seq_seq_sct_int), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_seq_sct_float), list[_ArrFloat1D])
+assert_type(pu.as_series(seq_seq_sct_complex), list[_ArrComplex1D])
+assert_type(pu.as_series(seq_seq_sct_object), list[_ArrObject1D])
+
+# trimcoef
+
+assert_type(pu.trimcoef(num_int), _ArrFloat1D)
+assert_type(pu.trimcoef(num_float), _ArrFloat1D)
+assert_type(pu.trimcoef(num_complex), _ArrComplex1D)
+assert_type(pu.trimcoef(num_object), _ArrObject1D)
+assert_type(pu.trimcoef(num_object), _ArrObject1D)
+
+assert_type(pu.trimcoef(sct_int), _ArrFloat1D)
+assert_type(pu.trimcoef(sct_float), _ArrFloat1D)
+assert_type(pu.trimcoef(sct_complex), _ArrComplex1D)
+assert_type(pu.trimcoef(sct_object), _ArrObject1D)
+
+assert_type(pu.trimcoef(arr_int), _ArrFloat1D)
+assert_type(pu.trimcoef(arr_float), _ArrFloat1D)
+assert_type(pu.trimcoef(arr_complex), _ArrComplex1D)
+assert_type(pu.trimcoef(arr_object), _ArrObject1D)
+
+assert_type(pu.trimcoef(seq_num_int), _ArrFloat1D)
+assert_type(pu.trimcoef(seq_num_float), _ArrFloat1D)
+assert_type(pu.trimcoef(seq_num_complex), _ArrComplex1D)
+assert_type(pu.trimcoef(seq_num_object), _ArrObject1D)
+
+assert_type(pu.trimcoef(seq_sct_int), _ArrFloat1D)
+assert_type(pu.trimcoef(seq_sct_float), _ArrFloat1D)
+assert_type(pu.trimcoef(seq_sct_complex), _ArrComplex1D)
+assert_type(pu.trimcoef(seq_sct_object), _ArrObject1D)
+
+# getdomain
+
+assert_type(pu.getdomain(num_int), _ArrFloat1D_2)
+assert_type(pu.getdomain(num_float), _ArrFloat1D_2)
+assert_type(pu.getdomain(num_complex), _ArrComplex1D_2)
+assert_type(pu.getdomain(num_object), _ArrObject1D_2)
+assert_type(pu.getdomain(num_object), _ArrObject1D_2)
+
+assert_type(pu.getdomain(sct_int), _ArrFloat1D_2)
+assert_type(pu.getdomain(sct_float), _ArrFloat1D_2)
+assert_type(pu.getdomain(sct_complex), _ArrComplex1D_2)
+assert_type(pu.getdomain(sct_object), _ArrObject1D_2)
+
+assert_type(pu.getdomain(arr_int), _ArrFloat1D_2)
+assert_type(pu.getdomain(arr_float), _ArrFloat1D_2)
+assert_type(pu.getdomain(arr_complex), _ArrComplex1D_2)
+assert_type(pu.getdomain(arr_object), _ArrObject1D_2)
+
+assert_type(pu.getdomain(seq_num_int), _ArrFloat1D_2)
+assert_type(pu.getdomain(seq_num_float), _ArrFloat1D_2)
+assert_type(pu.getdomain(seq_num_complex), _ArrComplex1D_2)
+assert_type(pu.getdomain(seq_num_object), _ArrObject1D_2)
+
+assert_type(pu.getdomain(seq_sct_int), _ArrFloat1D_2)
+assert_type(pu.getdomain(seq_sct_float), _ArrFloat1D_2)
+assert_type(pu.getdomain(seq_sct_complex), _ArrComplex1D_2)
+assert_type(pu.getdomain(seq_sct_object), _ArrObject1D_2)
+
+# mapparms
+
+assert_type(pu.mapparms(seq_num_int, seq_num_int), _Tuple2[float])
+assert_type(pu.mapparms(seq_num_int, seq_num_float), _Tuple2[float])
+assert_type(pu.mapparms(seq_num_float, seq_num_float), _Tuple2[float])
+assert_type(pu.mapparms(seq_num_float, seq_num_complex), _Tuple2[complex])
+assert_type(pu.mapparms(seq_num_complex, seq_num_complex), _Tuple2[complex])
+assert_type(pu.mapparms(seq_num_complex, seq_num_object), _Tuple2[object])
+assert_type(pu.mapparms(seq_num_object, seq_num_object), _Tuple2[object])
+
+assert_type(pu.mapparms(seq_sct_int, seq_sct_int), _Tuple2[np.floating])
+assert_type(pu.mapparms(seq_sct_int, seq_sct_float), _Tuple2[np.floating])
+assert_type(pu.mapparms(seq_sct_float, seq_sct_float), _Tuple2[float])
+assert_type(pu.mapparms(seq_sct_float, seq_sct_complex), _Tuple2[complex])
+assert_type(pu.mapparms(seq_sct_complex, seq_sct_complex), _Tuple2[complex])
+assert_type(pu.mapparms(seq_sct_complex, seq_sct_object), _Tuple2[object])
+assert_type(pu.mapparms(seq_sct_object, seq_sct_object), _Tuple2[object])
+
+assert_type(pu.mapparms(arr_int, arr_int), _Tuple2[np.floating])
+assert_type(pu.mapparms(arr_int, arr_float), _Tuple2[np.floating])
+assert_type(pu.mapparms(arr_float, arr_float), _Tuple2[np.floating])
+assert_type(pu.mapparms(arr_float, arr_complex), _Tuple2[np.complexfloating])
+assert_type(pu.mapparms(arr_complex, arr_complex), _Tuple2[np.complexfloating])
+assert_type(pu.mapparms(arr_complex, arr_object), _Tuple2[object])
+assert_type(pu.mapparms(arr_object, arr_object), _Tuple2[object])
+
+# mapdomain
+
+assert_type(pu.mapdomain(num_int, seq_num_int, seq_num_int), np.floating)
+assert_type(pu.mapdomain(num_int, seq_num_int, seq_num_float), np.floating)
+assert_type(pu.mapdomain(num_int, seq_num_float, seq_num_float), np.floating)
+assert_type(pu.mapdomain(num_float, seq_num_float, seq_num_float), np.floating)
+assert_type(pu.mapdomain(num_float, seq_num_float, seq_num_complex), np.complexfloating)
+assert_type(pu.mapdomain(num_float, seq_num_complex, seq_num_complex), np.complexfloating)
+assert_type(pu.mapdomain(num_complex, seq_num_complex, seq_num_complex), np.complexfloating)
+assert_type(pu.mapdomain(num_complex, seq_num_complex, seq_num_object), object)
+assert_type(pu.mapdomain(num_complex, seq_num_object, seq_num_object), object)
+assert_type(pu.mapdomain(num_object, seq_num_object, seq_num_object), object)
+
+assert_type(pu.mapdomain(seq_num_int, seq_num_int, seq_num_int), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_num_int, seq_num_int, seq_num_float), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_num_int, seq_num_float, seq_num_float), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_num_float, seq_num_float, seq_num_float), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_num_float, seq_num_float, seq_num_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(seq_num_float, seq_num_complex, seq_num_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(seq_num_complex, seq_num_complex, seq_num_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(seq_num_complex, seq_num_complex, seq_num_object), _ArrObject1D)
+assert_type(pu.mapdomain(seq_num_complex, seq_num_object, seq_num_object), _ArrObject1D)
+assert_type(pu.mapdomain(seq_num_object, seq_num_object, seq_num_object), _ArrObject1D)
+
+assert_type(pu.mapdomain(seq_sct_int, seq_sct_int, seq_sct_int), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_sct_int, seq_sct_int, seq_sct_float), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_sct_int, seq_sct_float, seq_sct_float), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_sct_float, seq_sct_float, seq_sct_float), _ArrFloat1D)
+assert_type(pu.mapdomain(seq_sct_float, seq_sct_float, seq_sct_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(seq_sct_float, seq_sct_complex, seq_sct_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(seq_sct_complex, seq_sct_complex, seq_sct_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(seq_sct_complex, seq_sct_complex, seq_sct_object), _ArrObject1D)
+assert_type(pu.mapdomain(seq_sct_complex, seq_sct_object, seq_sct_object), _ArrObject1D)
+assert_type(pu.mapdomain(seq_sct_object, seq_sct_object, seq_sct_object), _ArrObject1D)
+
+assert_type(pu.mapdomain(arr_int, arr_int, arr_int), _ArrFloat1D)
+assert_type(pu.mapdomain(arr_int, arr_int, arr_float), _ArrFloat1D)
+assert_type(pu.mapdomain(arr_int, arr_float, arr_float), _ArrFloat1D)
+assert_type(pu.mapdomain(arr_float, arr_float, arr_float), _ArrFloat1D)
+assert_type(pu.mapdomain(arr_float, arr_float, arr_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(arr_float, arr_complex, arr_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(arr_complex, arr_complex, arr_complex), _ArrComplex1D)
+assert_type(pu.mapdomain(arr_complex, arr_complex, arr_object), _ArrObject1D)
+assert_type(pu.mapdomain(arr_complex, arr_object, arr_object), _ArrObject1D)
+assert_type(pu.mapdomain(arr_object, arr_object, arr_object), _ArrObject1D)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_series.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_series.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..cc0cd9b82bf885fec21fb0bebc0bcdd06af97397
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/polynomial_series.pyi
@@ -0,0 +1,138 @@
+from collections.abc import Sequence
+from typing import Any, TypeAlias, assert_type
+
+import numpy as np
+import numpy.polynomial as npp
+import numpy.typing as npt
+
+_ArrFloat1D: TypeAlias = np.ndarray[tuple[int], np.dtype[np.floating]]
+_ArrFloat1D64: TypeAlias = np.ndarray[tuple[int], np.dtype[np.float64]]
+_ArrComplex1D: TypeAlias = np.ndarray[tuple[int], np.dtype[np.complexfloating]]
+_ArrComplex1D128: TypeAlias = np.ndarray[tuple[int], np.dtype[np.complex128]]
+_ArrObject1D: TypeAlias = np.ndarray[tuple[int], np.dtype[np.object_]]
+
+AR_b: npt.NDArray[np.bool]
+AR_u4: npt.NDArray[np.uint32]
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+AR_c16: npt.NDArray[np.complex128]
+AR_O: npt.NDArray[np.object_]
+
+PS_poly: npp.Polynomial
+PS_cheb: npp.Chebyshev
+
+assert_type(npp.polynomial.polyroots(AR_f8), _ArrFloat1D64)
+assert_type(npp.polynomial.polyroots(AR_c16), _ArrComplex1D128)
+assert_type(npp.polynomial.polyroots(AR_O), _ArrObject1D)
+
+assert_type(npp.polynomial.polyfromroots(AR_f8), _ArrFloat1D)
+assert_type(npp.polynomial.polyfromroots(AR_c16), _ArrComplex1D)
+assert_type(npp.polynomial.polyfromroots(AR_O), _ArrObject1D)
+
+# assert_type(npp.polynomial.polyadd(AR_b, AR_b), NoReturn)
+assert_type(npp.polynomial.polyadd(AR_u4, AR_b), _ArrFloat1D)
+assert_type(npp.polynomial.polyadd(AR_i8, AR_i8), _ArrFloat1D)
+assert_type(npp.polynomial.polyadd(AR_f8, AR_i8), _ArrFloat1D)
+assert_type(npp.polynomial.polyadd(AR_i8, AR_c16), _ArrComplex1D)
+assert_type(npp.polynomial.polyadd(AR_O, AR_O), _ArrObject1D)
+
+assert_type(npp.polynomial.polymulx(AR_u4), _ArrFloat1D)
+assert_type(npp.polynomial.polymulx(AR_i8), _ArrFloat1D)
+assert_type(npp.polynomial.polymulx(AR_f8), _ArrFloat1D)
+assert_type(npp.polynomial.polymulx(AR_c16), _ArrComplex1D)
+assert_type(npp.polynomial.polymulx(AR_O), _ArrObject1D)
+
+assert_type(npp.polynomial.polypow(AR_u4, 2), _ArrFloat1D)
+assert_type(npp.polynomial.polypow(AR_i8, 2), _ArrFloat1D)
+assert_type(npp.polynomial.polypow(AR_f8, 2), _ArrFloat1D)
+assert_type(npp.polynomial.polypow(AR_c16, 2), _ArrComplex1D)
+assert_type(npp.polynomial.polypow(AR_O, 2), _ArrObject1D)
+
+# assert_type(npp.polynomial.polyder(PS_poly), npt.NDArray[np.object_])
+assert_type(npp.polynomial.polyder(AR_f8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyder(AR_c16), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyder(AR_O, m=2), npt.NDArray[np.object_])
+
+# assert_type(npp.polynomial.polyint(PS_poly), npt.NDArray[np.object_])
+assert_type(npp.polynomial.polyint(AR_f8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyint(AR_f8, k=AR_c16), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyint(AR_O, m=2), npt.NDArray[np.object_])
+
+assert_type(npp.polynomial.polyval(AR_b, AR_b), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval(AR_u4, AR_b), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval(AR_i8, AR_i8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval(AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval(AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyval(AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(npp.polynomial.polyval2d(AR_b, AR_b, AR_b), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval2d(AR_u4, AR_u4, AR_b), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval2d(AR_i8, AR_i8, AR_i8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval2d(AR_f8, AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval2d(AR_i8, AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyval2d(AR_O, AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(npp.polynomial.polyval3d(AR_b, AR_b, AR_b, AR_b), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval3d(AR_u4, AR_u4, AR_u4, AR_b), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval3d(AR_i8, AR_i8, AR_i8, AR_i8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval3d(AR_f8, AR_f8, AR_f8, AR_i8), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyval3d(AR_i8, AR_i8, AR_i8, AR_c16), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyval3d(AR_O, AR_O, AR_O, AR_O), npt.NDArray[np.object_])
+
+assert_type(npp.polynomial.polyvalfromroots(AR_b, AR_b), npt.NDArray[np.float64 | Any])
+assert_type(npp.polynomial.polyvalfromroots(AR_u4, AR_b), npt.NDArray[np.float64 | Any])
+assert_type(npp.polynomial.polyvalfromroots(AR_i8, AR_i8), npt.NDArray[np.float64 | Any])
+assert_type(npp.polynomial.polyvalfromroots(AR_f8, AR_i8), npt.NDArray[np.float64 | Any])
+assert_type(npp.polynomial.polyvalfromroots(AR_i8, AR_c16), npt.NDArray[np.complex128 | Any])
+assert_type(npp.polynomial.polyvalfromroots(AR_O, AR_O), npt.NDArray[np.object_ | Any])
+
+assert_type(npp.polynomial.polyvander(AR_f8, 3), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyvander(AR_c16, 3), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyvander(AR_O, 3), npt.NDArray[np.object_])
+
+assert_type(npp.polynomial.polyvander2d(AR_f8, AR_f8, [4, 2]), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyvander2d(AR_c16, AR_c16, [4, 2]), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyvander2d(AR_O, AR_O, [4, 2]), npt.NDArray[np.object_])
+
+assert_type(npp.polynomial.polyvander3d(AR_f8, AR_f8, AR_f8, [4, 3, 2]), npt.NDArray[np.floating])
+assert_type(npp.polynomial.polyvander3d(AR_c16, AR_c16, AR_c16, [4, 3, 2]), npt.NDArray[np.complexfloating])
+assert_type(npp.polynomial.polyvander3d(AR_O, AR_O, AR_O, [4, 3, 2]), npt.NDArray[np.object_])
+
+assert_type(
+    npp.polynomial.polyfit(AR_f8, AR_f8, 2),
+    npt.NDArray[np.floating],
+)
+assert_type(
+    npp.polynomial.polyfit(AR_f8, AR_i8, 1, full=True),
+    tuple[npt.NDArray[np.floating], Sequence[np.inexact | np.int32]],
+)
+assert_type(
+    npp.polynomial.polyfit(AR_c16, AR_f8, 2),
+    npt.NDArray[np.complexfloating],
+)
+assert_type(
+    npp.polynomial.polyfit(AR_f8, AR_c16, 1, full=True)[0],
+    npt.NDArray[np.complexfloating],
+)
+
+assert_type(npp.chebyshev.chebgauss(2), tuple[_ArrFloat1D64, _ArrFloat1D64])
+
+assert_type(npp.chebyshev.chebweight(AR_f8), npt.NDArray[np.float64])
+assert_type(npp.chebyshev.chebweight(AR_c16), npt.NDArray[np.complex128])
+assert_type(npp.chebyshev.chebweight(AR_O), npt.NDArray[np.object_])
+
+assert_type(npp.chebyshev.poly2cheb(AR_f8), _ArrFloat1D)
+assert_type(npp.chebyshev.poly2cheb(AR_c16), _ArrComplex1D)
+assert_type(npp.chebyshev.poly2cheb(AR_O), _ArrObject1D)
+
+assert_type(npp.chebyshev.cheb2poly(AR_f8), _ArrFloat1D)
+assert_type(npp.chebyshev.cheb2poly(AR_c16), _ArrComplex1D)
+assert_type(npp.chebyshev.cheb2poly(AR_O), _ArrObject1D)
+
+assert_type(npp.chebyshev.chebpts1(6), _ArrFloat1D64)
+assert_type(npp.chebyshev.chebpts2(6), _ArrFloat1D64)
+
+assert_type(
+    npp.chebyshev.chebinterpolate(np.tanh, 3),
+    npt.NDArray[np.float64 | np.complex128 | np.object_],
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/random.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/random.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..8a57644304fb07c853779c73ba7f9d35f82900c4
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/random.pyi
@@ -0,0 +1,1546 @@
+import threading
+from collections.abc import Sequence
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+from numpy.random._generator import Generator
+from numpy.random._mt19937 import MT19937
+from numpy.random._pcg64 import PCG64
+from numpy.random._philox import Philox
+from numpy.random._sfc64 import SFC64
+from numpy.random.bit_generator import SeedlessSeedSequence, SeedSequence
+
+def_rng = np.random.default_rng()
+seed_seq = np.random.SeedSequence()
+mt19937 = np.random.MT19937()
+pcg64 = np.random.PCG64()
+sfc64 = np.random.SFC64()
+philox = np.random.Philox()
+seedless_seq = SeedlessSeedSequence()
+
+assert_type(def_rng, Generator)
+assert_type(mt19937, MT19937)
+assert_type(pcg64, PCG64)
+assert_type(sfc64, SFC64)
+assert_type(philox, Philox)
+assert_type(seed_seq, SeedSequence)
+assert_type(seedless_seq, SeedlessSeedSequence)
+
+mt19937_jumped = mt19937.jumped()
+mt19937_jumped3 = mt19937.jumped(3)
+mt19937_raw = mt19937.random_raw()
+mt19937_raw_arr = mt19937.random_raw(5)
+
+assert_type(mt19937_jumped, MT19937)
+assert_type(mt19937_jumped3, MT19937)
+assert_type(mt19937_raw, int)
+assert_type(mt19937_raw_arr, npt.NDArray[np.uint64])
+assert_type(mt19937.lock, threading.Lock)
+
+pcg64_jumped = pcg64.jumped()
+pcg64_jumped3 = pcg64.jumped(3)
+pcg64_adv = pcg64.advance(3)
+pcg64_raw = pcg64.random_raw()
+pcg64_raw_arr = pcg64.random_raw(5)
+
+assert_type(pcg64_jumped, PCG64)
+assert_type(pcg64_jumped3, PCG64)
+assert_type(pcg64_adv, PCG64)
+assert_type(pcg64_raw, int)
+assert_type(pcg64_raw_arr, npt.NDArray[np.uint64])
+assert_type(pcg64.lock, threading.Lock)
+
+philox_jumped = philox.jumped()
+philox_jumped3 = philox.jumped(3)
+philox_adv = philox.advance(3)
+philox_raw = philox.random_raw()
+philox_raw_arr = philox.random_raw(5)
+
+assert_type(philox_jumped, Philox)
+assert_type(philox_jumped3, Philox)
+assert_type(philox_adv, Philox)
+assert_type(philox_raw, int)
+assert_type(philox_raw_arr, npt.NDArray[np.uint64])
+assert_type(philox.lock, threading.Lock)
+
+sfc64_raw = sfc64.random_raw()
+sfc64_raw_arr = sfc64.random_raw(5)
+
+assert_type(sfc64_raw, int)
+assert_type(sfc64_raw_arr, npt.NDArray[np.uint64])
+assert_type(sfc64.lock, threading.Lock)
+
+assert_type(seed_seq.pool, npt.NDArray[np.uint32])
+assert_type(seed_seq.entropy, int | Sequence[int] | None)
+assert_type(seed_seq.spawn(1), list[np.random.SeedSequence])
+assert_type(seed_seq.generate_state(8, "uint32"), npt.NDArray[np.uint32 | np.uint64])
+assert_type(seed_seq.generate_state(8, "uint64"), npt.NDArray[np.uint32 | np.uint64])
+
+def_gen: np.random.Generator = np.random.default_rng()
+
+D_arr_0p1: npt.NDArray[np.float64] = np.array([0.1])
+D_arr_0p5: npt.NDArray[np.float64] = np.array([0.5])
+D_arr_0p9: npt.NDArray[np.float64] = np.array([0.9])
+D_arr_1p5: npt.NDArray[np.float64] = np.array([1.5])
+I_arr_10: npt.NDArray[np.int_] = np.array([10], dtype=np.int_)
+I_arr_20: npt.NDArray[np.int_] = np.array([20], dtype=np.int_)
+D_arr_like_0p1: list[float] = [0.1]
+D_arr_like_0p5: list[float] = [0.5]
+D_arr_like_0p9: list[float] = [0.9]
+D_arr_like_1p5: list[float] = [1.5]
+I_arr_like_10: list[int] = [10]
+I_arr_like_20: list[int] = [20]
+D_2D_like: list[list[float]] = [[1, 2], [2, 3], [3, 4], [4, 5.1]]
+D_2D: npt.NDArray[np.float64] = np.array(D_2D_like)
+S_out: npt.NDArray[np.float32] = np.empty(1, dtype=np.float32)
+D_out: npt.NDArray[np.float64] = np.empty(1)
+
+assert_type(def_gen.standard_normal(), float)
+assert_type(def_gen.standard_normal(dtype=np.float32), float)
+assert_type(def_gen.standard_normal(dtype="float32"), float)
+assert_type(def_gen.standard_normal(dtype="double"), float)
+assert_type(def_gen.standard_normal(dtype=np.float64), float)
+assert_type(def_gen.standard_normal(size=None), float)
+assert_type(def_gen.standard_normal(size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_normal(size=1, dtype=np.float32), npt.NDArray[np.float32])
+assert_type(def_gen.standard_normal(size=1, dtype="f4"), npt.NDArray[np.float32])
+assert_type(def_gen.standard_normal(size=1, dtype="float32", out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.standard_normal(dtype=np.float32, out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.standard_normal(size=1, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(def_gen.standard_normal(size=1, dtype="float64"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_normal(size=1, dtype="f8"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_normal(out=D_out), npt.NDArray[np.float64])
+assert_type(def_gen.standard_normal(size=1, dtype="float64"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_normal(size=1, dtype="float64", out=D_out), npt.NDArray[np.float64])
+
+assert_type(def_gen.random(), float)
+assert_type(def_gen.random(dtype=np.float32), float)
+assert_type(def_gen.random(dtype="float32"), float)
+assert_type(def_gen.random(dtype="double"), float)
+assert_type(def_gen.random(dtype=np.float64), float)
+assert_type(def_gen.random(size=None), float)
+assert_type(def_gen.random(size=1), npt.NDArray[np.float64])
+assert_type(def_gen.random(size=1, dtype=np.float32), npt.NDArray[np.float32])
+assert_type(def_gen.random(size=1, dtype="f4"), npt.NDArray[np.float32])
+assert_type(def_gen.random(size=1, dtype="float32", out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.random(dtype=np.float32, out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.random(size=1, dtype=np.float64), npt.NDArray[np.float64])
+assert_type(def_gen.random(size=1, dtype="float64"), npt.NDArray[np.float64])
+assert_type(def_gen.random(size=1, dtype="f8"), npt.NDArray[np.float64])
+assert_type(def_gen.random(out=D_out), npt.NDArray[np.float64])
+assert_type(def_gen.random(size=1, dtype="float64"), npt.NDArray[np.float64])
+assert_type(def_gen.random(size=1, dtype="float64", out=D_out), npt.NDArray[np.float64])
+
+assert_type(def_gen.standard_cauchy(), float)
+assert_type(def_gen.standard_cauchy(size=None), float)
+assert_type(def_gen.standard_cauchy(size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.standard_exponential(), float)
+assert_type(def_gen.standard_exponential(method="inv"), float)
+assert_type(def_gen.standard_exponential(dtype=np.float32), float)
+assert_type(def_gen.standard_exponential(dtype="float32"), float)
+assert_type(def_gen.standard_exponential(dtype="double"), float)
+assert_type(def_gen.standard_exponential(dtype=np.float64), float)
+assert_type(def_gen.standard_exponential(size=None), float)
+assert_type(def_gen.standard_exponential(size=None, method="inv"), float)
+assert_type(def_gen.standard_exponential(size=1, method="inv"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_exponential(size=1, dtype=np.float32), npt.NDArray[np.float32])
+assert_type(def_gen.standard_exponential(size=1, dtype="f4", method="inv"), npt.NDArray[np.float32])
+assert_type(def_gen.standard_exponential(size=1, dtype="float32", out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.standard_exponential(dtype=np.float32, out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.standard_exponential(size=1, dtype=np.float64, method="inv"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_exponential(size=1, dtype="float64"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_exponential(size=1, dtype="f8"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_exponential(out=D_out), npt.NDArray[np.float64])
+assert_type(def_gen.standard_exponential(size=1, dtype="float64"), npt.NDArray[np.float64])
+assert_type(def_gen.standard_exponential(size=1, dtype="float64", out=D_out), npt.NDArray[np.float64])
+
+assert_type(def_gen.zipf(1.5), int)
+assert_type(def_gen.zipf(1.5, size=None), int)
+assert_type(def_gen.zipf(1.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.zipf(D_arr_1p5), npt.NDArray[np.int64])
+assert_type(def_gen.zipf(D_arr_1p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.zipf(D_arr_like_1p5), npt.NDArray[np.int64])
+assert_type(def_gen.zipf(D_arr_like_1p5, size=1), npt.NDArray[np.int64])
+
+assert_type(def_gen.weibull(0.5), float)
+assert_type(def_gen.weibull(0.5, size=None), float)
+assert_type(def_gen.weibull(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.weibull(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.weibull(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.weibull(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.weibull(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.standard_t(0.5), float)
+assert_type(def_gen.standard_t(0.5, size=None), float)
+assert_type(def_gen.standard_t(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_t(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.standard_t(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_t(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.standard_t(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.poisson(0.5), int)
+assert_type(def_gen.poisson(0.5, size=None), int)
+assert_type(def_gen.poisson(0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.poisson(D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.poisson(D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.poisson(D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.poisson(D_arr_like_0p5, size=1), npt.NDArray[np.int64])
+
+assert_type(def_gen.power(0.5), float)
+assert_type(def_gen.power(0.5, size=None), float)
+assert_type(def_gen.power(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.power(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.power(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.power(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.power(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.pareto(0.5), float)
+assert_type(def_gen.pareto(0.5, size=None), float)
+assert_type(def_gen.pareto(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.pareto(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.pareto(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.pareto(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.pareto(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.chisquare(0.5), float)
+assert_type(def_gen.chisquare(0.5, size=None), float)
+assert_type(def_gen.chisquare(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.chisquare(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.chisquare(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.chisquare(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.chisquare(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.exponential(0.5), float)
+assert_type(def_gen.exponential(0.5, size=None), float)
+assert_type(def_gen.exponential(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.exponential(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.exponential(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.exponential(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.exponential(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.geometric(0.5), int)
+assert_type(def_gen.geometric(0.5, size=None), int)
+assert_type(def_gen.geometric(0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.geometric(D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.geometric(D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.geometric(D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.geometric(D_arr_like_0p5, size=1), npt.NDArray[np.int64])
+
+assert_type(def_gen.logseries(0.5), int)
+assert_type(def_gen.logseries(0.5, size=None), int)
+assert_type(def_gen.logseries(0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.logseries(D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.logseries(D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.logseries(D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.logseries(D_arr_like_0p5, size=1), npt.NDArray[np.int64])
+
+assert_type(def_gen.rayleigh(0.5), float)
+assert_type(def_gen.rayleigh(0.5, size=None), float)
+assert_type(def_gen.rayleigh(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.rayleigh(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.rayleigh(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.rayleigh(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.rayleigh(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.standard_gamma(0.5), float)
+assert_type(def_gen.standard_gamma(0.5, size=None), float)
+assert_type(def_gen.standard_gamma(0.5, dtype="float32"), float)
+assert_type(def_gen.standard_gamma(0.5, size=None, dtype="float32"), float)
+assert_type(def_gen.standard_gamma(0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_0p5, dtype="f4"), npt.NDArray[np.float32])
+assert_type(def_gen.standard_gamma(0.5, size=1, dtype="float32", out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.standard_gamma(D_arr_0p5, dtype=np.float32, out=S_out), npt.NDArray[np.float32])
+assert_type(def_gen.standard_gamma(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(0.5, out=D_out), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_like_0p5, out=D_out), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.standard_gamma(D_arr_like_0p5, size=1, out=D_out, dtype=np.float64), npt.NDArray[np.float64])
+
+assert_type(def_gen.vonmises(0.5, 0.5), float)
+assert_type(def_gen.vonmises(0.5, 0.5, size=None), float)
+assert_type(def_gen.vonmises(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.vonmises(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.wald(0.5, 0.5), float)
+assert_type(def_gen.wald(0.5, 0.5, size=None), float)
+assert_type(def_gen.wald(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.wald(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.wald(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.wald(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.wald(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.uniform(0.5, 0.5), float)
+assert_type(def_gen.uniform(0.5, 0.5, size=None), float)
+assert_type(def_gen.uniform(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.uniform(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.beta(0.5, 0.5), float)
+assert_type(def_gen.beta(0.5, 0.5, size=None), float)
+assert_type(def_gen.beta(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.beta(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.beta(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.beta(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.beta(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.f(0.5, 0.5), float)
+assert_type(def_gen.f(0.5, 0.5, size=None), float)
+assert_type(def_gen.f(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.f(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.f(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.f(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.f(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.gamma(0.5, 0.5), float)
+assert_type(def_gen.gamma(0.5, 0.5, size=None), float)
+assert_type(def_gen.gamma(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gamma(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.gumbel(0.5, 0.5), float)
+assert_type(def_gen.gumbel(0.5, 0.5, size=None), float)
+assert_type(def_gen.gumbel(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.gumbel(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.laplace(0.5, 0.5), float)
+assert_type(def_gen.laplace(0.5, 0.5, size=None), float)
+assert_type(def_gen.laplace(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.laplace(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.logistic(0.5, 0.5), float)
+assert_type(def_gen.logistic(0.5, 0.5, size=None), float)
+assert_type(def_gen.logistic(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.logistic(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.lognormal(0.5, 0.5), float)
+assert_type(def_gen.lognormal(0.5, 0.5, size=None), float)
+assert_type(def_gen.lognormal(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.lognormal(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.noncentral_chisquare(0.5, 0.5), float)
+assert_type(def_gen.noncentral_chisquare(0.5, 0.5, size=None), float)
+assert_type(def_gen.noncentral_chisquare(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.normal(0.5, 0.5), float)
+assert_type(def_gen.normal(0.5, 0.5, size=None), float)
+assert_type(def_gen.normal(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.normal(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.normal(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(def_gen.normal(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.normal(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.triangular(0.1, 0.5, 0.9), float)
+assert_type(def_gen.triangular(0.1, 0.5, 0.9, size=None), float)
+assert_type(def_gen.triangular(0.1, 0.5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_0p1, 0.5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(0.1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_0p1, 0.5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(0.1, D_arr_0p5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_like_0p1, 0.5, D_arr_0p9), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(0.5, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_0p1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_like_0p1, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.triangular(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.noncentral_f(0.1, 0.5, 0.9), float)
+assert_type(def_gen.noncentral_f(0.1, 0.5, 0.9, size=None), float)
+assert_type(def_gen.noncentral_f(0.1, 0.5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_0p1, 0.5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(0.1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_0p1, 0.5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(0.1, D_arr_0p5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_like_0p1, 0.5, D_arr_0p9), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(0.5, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_0p1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1), npt.NDArray[np.float64])
+assert_type(def_gen.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+
+assert_type(def_gen.binomial(10, 0.5), int)
+assert_type(def_gen.binomial(10, 0.5, size=None), int)
+assert_type(def_gen.binomial(10, 0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_10, 0.5), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(10, D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_10, 0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(10, D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_like_10, 0.5), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(10, D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_10, D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_like_10, D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_10, D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.binomial(I_arr_like_10, D_arr_like_0p5, size=1), npt.NDArray[np.int64])
+
+assert_type(def_gen.negative_binomial(10, 0.5), int)
+assert_type(def_gen.negative_binomial(10, 0.5, size=None), int)
+assert_type(def_gen.negative_binomial(10, 0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_10, 0.5), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(10, D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_10, 0.5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(10, D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_like_10, 0.5), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(10, D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_10, D_arr_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_like_10, D_arr_like_0p5), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_10, D_arr_0p5, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.negative_binomial(I_arr_like_10, D_arr_like_0p5, size=1), npt.NDArray[np.int64])
+
+assert_type(def_gen.hypergeometric(20, 20, 10), int)
+assert_type(def_gen.hypergeometric(20, 20, 10, size=None), int)
+assert_type(def_gen.hypergeometric(20, 20, 10, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_20, 20, 10), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(20, I_arr_20, 10), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_20, 20, I_arr_like_10, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(20, I_arr_20, 10, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_like_20, 20, I_arr_10), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(20, I_arr_like_20, 10), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_20, I_arr_20, 10), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_like_20, I_arr_like_20, 10), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_20, I_arr_20, I_arr_10, size=1), npt.NDArray[np.int64])
+assert_type(def_gen.hypergeometric(I_arr_like_20, I_arr_like_20, I_arr_like_10, size=1), npt.NDArray[np.int64])
+
+I_int64_100: npt.NDArray[np.int64] = np.array([100], dtype=np.int64)
+
+assert_type(def_gen.integers(0, 100), np.int64)
+assert_type(def_gen.integers(100), np.int64)
+assert_type(def_gen.integers([100]), npt.NDArray[np.int64])
+assert_type(def_gen.integers(0, [100]), npt.NDArray[np.int64])
+
+I_bool_low: npt.NDArray[np.bool] = np.array([0], dtype=np.bool)
+I_bool_low_like: list[int] = [0]
+I_bool_high_open: npt.NDArray[np.bool] = np.array([1], dtype=np.bool)
+I_bool_high_closed: npt.NDArray[np.bool] = np.array([1], dtype=np.bool)
+
+assert_type(def_gen.integers(2, dtype=bool), bool)
+assert_type(def_gen.integers(0, 2, dtype=bool), bool)
+assert_type(def_gen.integers(1, dtype=bool, endpoint=True), bool)
+assert_type(def_gen.integers(0, 1, dtype=bool, endpoint=True), bool)
+assert_type(def_gen.integers(I_bool_low_like, 1, dtype=bool, endpoint=True), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_high_open, dtype=bool), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_low, I_bool_high_open, dtype=bool), npt.NDArray[np.bool])
+assert_type(def_gen.integers(0, I_bool_high_open, dtype=bool), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_high_closed, dtype=bool, endpoint=True), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_low, I_bool_high_closed, dtype=bool, endpoint=True), npt.NDArray[np.bool])
+assert_type(def_gen.integers(0, I_bool_high_closed, dtype=bool, endpoint=True), npt.NDArray[np.bool])
+
+assert_type(def_gen.integers(2, dtype=np.bool), np.bool)
+assert_type(def_gen.integers(0, 2, dtype=np.bool), np.bool)
+assert_type(def_gen.integers(1, dtype=np.bool, endpoint=True), np.bool)
+assert_type(def_gen.integers(0, 1, dtype=np.bool, endpoint=True), np.bool)
+assert_type(def_gen.integers(I_bool_low_like, 1, dtype=np.bool, endpoint=True), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_high_open, dtype=np.bool), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_low, I_bool_high_open, dtype=np.bool), npt.NDArray[np.bool])
+assert_type(def_gen.integers(0, I_bool_high_open, dtype=np.bool), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_high_closed, dtype=np.bool, endpoint=True), npt.NDArray[np.bool])
+assert_type(def_gen.integers(I_bool_low, I_bool_high_closed, dtype=np.bool, endpoint=True), npt.NDArray[np.bool])
+assert_type(def_gen.integers(0, I_bool_high_closed, dtype=np.bool, endpoint=True), npt.NDArray[np.bool])
+
+I_u1_low: npt.NDArray[np.uint8] = np.array([0], dtype=np.uint8)
+I_u1_low_like: list[int] = [0]
+I_u1_high_open: npt.NDArray[np.uint8] = np.array([255], dtype=np.uint8)
+I_u1_high_closed: npt.NDArray[np.uint8] = np.array([255], dtype=np.uint8)
+
+assert_type(def_gen.integers(256, dtype="u1"), np.uint8)
+assert_type(def_gen.integers(0, 256, dtype="u1"), np.uint8)
+assert_type(def_gen.integers(255, dtype="u1", endpoint=True), np.uint8)
+assert_type(def_gen.integers(0, 255, dtype="u1", endpoint=True), np.uint8)
+assert_type(def_gen.integers(I_u1_low_like, 255, dtype="u1", endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_high_open, dtype="u1"), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_low, I_u1_high_open, dtype="u1"), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(0, I_u1_high_open, dtype="u1"), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_high_closed, dtype="u1", endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_low, I_u1_high_closed, dtype="u1", endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(0, I_u1_high_closed, dtype="u1", endpoint=True), npt.NDArray[np.uint8])
+
+assert_type(def_gen.integers(256, dtype="uint8"), np.uint8)
+assert_type(def_gen.integers(0, 256, dtype="uint8"), np.uint8)
+assert_type(def_gen.integers(255, dtype="uint8", endpoint=True), np.uint8)
+assert_type(def_gen.integers(0, 255, dtype="uint8", endpoint=True), np.uint8)
+assert_type(def_gen.integers(I_u1_low_like, 255, dtype="uint8", endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_high_open, dtype="uint8"), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_low, I_u1_high_open, dtype="uint8"), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(0, I_u1_high_open, dtype="uint8"), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_high_closed, dtype="uint8", endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_low, I_u1_high_closed, dtype="uint8", endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(0, I_u1_high_closed, dtype="uint8", endpoint=True), npt.NDArray[np.uint8])
+
+assert_type(def_gen.integers(256, dtype=np.uint8), np.uint8)
+assert_type(def_gen.integers(0, 256, dtype=np.uint8), np.uint8)
+assert_type(def_gen.integers(255, dtype=np.uint8, endpoint=True), np.uint8)
+assert_type(def_gen.integers(0, 255, dtype=np.uint8, endpoint=True), np.uint8)
+assert_type(def_gen.integers(I_u1_low_like, 255, dtype=np.uint8, endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_high_open, dtype=np.uint8), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_low, I_u1_high_open, dtype=np.uint8), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(0, I_u1_high_open, dtype=np.uint8), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_high_closed, dtype=np.uint8, endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(I_u1_low, I_u1_high_closed, dtype=np.uint8, endpoint=True), npt.NDArray[np.uint8])
+assert_type(def_gen.integers(0, I_u1_high_closed, dtype=np.uint8, endpoint=True), npt.NDArray[np.uint8])
+
+I_u2_low: npt.NDArray[np.uint16] = np.array([0], dtype=np.uint16)
+I_u2_low_like: list[int] = [0]
+I_u2_high_open: npt.NDArray[np.uint16] = np.array([65535], dtype=np.uint16)
+I_u2_high_closed: npt.NDArray[np.uint16] = np.array([65535], dtype=np.uint16)
+
+assert_type(def_gen.integers(65536, dtype="u2"), np.uint16)
+assert_type(def_gen.integers(0, 65536, dtype="u2"), np.uint16)
+assert_type(def_gen.integers(65535, dtype="u2", endpoint=True), np.uint16)
+assert_type(def_gen.integers(0, 65535, dtype="u2", endpoint=True), np.uint16)
+assert_type(def_gen.integers(I_u2_low_like, 65535, dtype="u2", endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_high_open, dtype="u2"), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_low, I_u2_high_open, dtype="u2"), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(0, I_u2_high_open, dtype="u2"), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_high_closed, dtype="u2", endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_low, I_u2_high_closed, dtype="u2", endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(0, I_u2_high_closed, dtype="u2", endpoint=True), npt.NDArray[np.uint16])
+
+assert_type(def_gen.integers(65536, dtype="uint16"), np.uint16)
+assert_type(def_gen.integers(0, 65536, dtype="uint16"), np.uint16)
+assert_type(def_gen.integers(65535, dtype="uint16", endpoint=True), np.uint16)
+assert_type(def_gen.integers(0, 65535, dtype="uint16", endpoint=True), np.uint16)
+assert_type(def_gen.integers(I_u2_low_like, 65535, dtype="uint16", endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_high_open, dtype="uint16"), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_low, I_u2_high_open, dtype="uint16"), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(0, I_u2_high_open, dtype="uint16"), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_high_closed, dtype="uint16", endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_low, I_u2_high_closed, dtype="uint16", endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(0, I_u2_high_closed, dtype="uint16", endpoint=True), npt.NDArray[np.uint16])
+
+assert_type(def_gen.integers(65536, dtype=np.uint16), np.uint16)
+assert_type(def_gen.integers(0, 65536, dtype=np.uint16), np.uint16)
+assert_type(def_gen.integers(65535, dtype=np.uint16, endpoint=True), np.uint16)
+assert_type(def_gen.integers(0, 65535, dtype=np.uint16, endpoint=True), np.uint16)
+assert_type(def_gen.integers(I_u2_low_like, 65535, dtype=np.uint16, endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_high_open, dtype=np.uint16), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_low, I_u2_high_open, dtype=np.uint16), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(0, I_u2_high_open, dtype=np.uint16), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_high_closed, dtype=np.uint16, endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(I_u2_low, I_u2_high_closed, dtype=np.uint16, endpoint=True), npt.NDArray[np.uint16])
+assert_type(def_gen.integers(0, I_u2_high_closed, dtype=np.uint16, endpoint=True), npt.NDArray[np.uint16])
+
+I_u4_low: npt.NDArray[np.uint32] = np.array([0], dtype=np.uint32)
+I_u4_low_like: list[int] = [0]
+I_u4_high_open: npt.NDArray[np.uint32] = np.array([4294967295], dtype=np.uint32)
+I_u4_high_closed: npt.NDArray[np.uint32] = np.array([4294967295], dtype=np.uint32)
+
+assert_type(def_gen.integers(4294967296, dtype=np.int_), np.int_)
+assert_type(def_gen.integers(0, 4294967296, dtype=np.int_), np.int_)
+assert_type(def_gen.integers(4294967295, dtype=np.int_, endpoint=True), np.int_)
+assert_type(def_gen.integers(0, 4294967295, dtype=np.int_, endpoint=True), np.int_)
+assert_type(def_gen.integers(I_u4_low_like, 4294967295, dtype=np.int_, endpoint=True), npt.NDArray[np.int_])
+assert_type(def_gen.integers(I_u4_high_open, dtype=np.int_), npt.NDArray[np.int_])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_open, dtype=np.int_), npt.NDArray[np.int_])
+assert_type(def_gen.integers(0, I_u4_high_open, dtype=np.int_), npt.NDArray[np.int_])
+assert_type(def_gen.integers(I_u4_high_closed, dtype=np.int_, endpoint=True), npt.NDArray[np.int_])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_closed, dtype=np.int_, endpoint=True), npt.NDArray[np.int_])
+assert_type(def_gen.integers(0, I_u4_high_closed, dtype=np.int_, endpoint=True), npt.NDArray[np.int_])
+
+assert_type(def_gen.integers(4294967296, dtype="u4"), np.uint32)
+assert_type(def_gen.integers(0, 4294967296, dtype="u4"), np.uint32)
+assert_type(def_gen.integers(4294967295, dtype="u4", endpoint=True), np.uint32)
+assert_type(def_gen.integers(0, 4294967295, dtype="u4", endpoint=True), np.uint32)
+assert_type(def_gen.integers(I_u4_low_like, 4294967295, dtype="u4", endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_high_open, dtype="u4"), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_open, dtype="u4"), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(0, I_u4_high_open, dtype="u4"), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_high_closed, dtype="u4", endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_closed, dtype="u4", endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(0, I_u4_high_closed, dtype="u4", endpoint=True), npt.NDArray[np.uint32])
+
+assert_type(def_gen.integers(4294967296, dtype="uint32"), np.uint32)
+assert_type(def_gen.integers(0, 4294967296, dtype="uint32"), np.uint32)
+assert_type(def_gen.integers(4294967295, dtype="uint32", endpoint=True), np.uint32)
+assert_type(def_gen.integers(0, 4294967295, dtype="uint32", endpoint=True), np.uint32)
+assert_type(def_gen.integers(I_u4_low_like, 4294967295, dtype="uint32", endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_high_open, dtype="uint32"), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_open, dtype="uint32"), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(0, I_u4_high_open, dtype="uint32"), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_high_closed, dtype="uint32", endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_closed, dtype="uint32", endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(0, I_u4_high_closed, dtype="uint32", endpoint=True), npt.NDArray[np.uint32])
+
+assert_type(def_gen.integers(4294967296, dtype=np.uint32), np.uint32)
+assert_type(def_gen.integers(0, 4294967296, dtype=np.uint32), np.uint32)
+assert_type(def_gen.integers(4294967295, dtype=np.uint32, endpoint=True), np.uint32)
+assert_type(def_gen.integers(0, 4294967295, dtype=np.uint32, endpoint=True), np.uint32)
+assert_type(def_gen.integers(I_u4_low_like, 4294967295, dtype=np.uint32, endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_high_open, dtype=np.uint32), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_open, dtype=np.uint32), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(0, I_u4_high_open, dtype=np.uint32), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_high_closed, dtype=np.uint32, endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_closed, dtype=np.uint32, endpoint=True), npt.NDArray[np.uint32])
+assert_type(def_gen.integers(0, I_u4_high_closed, dtype=np.uint32, endpoint=True), npt.NDArray[np.uint32])
+
+assert_type(def_gen.integers(4294967296, dtype=np.uint), np.uint)
+assert_type(def_gen.integers(0, 4294967296, dtype=np.uint), np.uint)
+assert_type(def_gen.integers(4294967295, dtype=np.uint, endpoint=True), np.uint)
+assert_type(def_gen.integers(0, 4294967295, dtype=np.uint, endpoint=True), np.uint)
+assert_type(def_gen.integers(I_u4_low_like, 4294967295, dtype=np.uint, endpoint=True), npt.NDArray[np.uint])
+assert_type(def_gen.integers(I_u4_high_open, dtype=np.uint), npt.NDArray[np.uint])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_open, dtype=np.uint), npt.NDArray[np.uint])
+assert_type(def_gen.integers(0, I_u4_high_open, dtype=np.uint), npt.NDArray[np.uint])
+assert_type(def_gen.integers(I_u4_high_closed, dtype=np.uint, endpoint=True), npt.NDArray[np.uint])
+assert_type(def_gen.integers(I_u4_low, I_u4_high_closed, dtype=np.uint, endpoint=True), npt.NDArray[np.uint])
+assert_type(def_gen.integers(0, I_u4_high_closed, dtype=np.uint, endpoint=True), npt.NDArray[np.uint])
+
+I_u8_low: npt.NDArray[np.uint64] = np.array([0], dtype=np.uint64)
+I_u8_low_like: list[int] = [0]
+I_u8_high_open: npt.NDArray[np.uint64] = np.array([18446744073709551615], dtype=np.uint64)
+I_u8_high_closed: npt.NDArray[np.uint64] = np.array([18446744073709551615], dtype=np.uint64)
+
+assert_type(def_gen.integers(18446744073709551616, dtype="u8"), np.uint64)
+assert_type(def_gen.integers(0, 18446744073709551616, dtype="u8"), np.uint64)
+assert_type(def_gen.integers(18446744073709551615, dtype="u8", endpoint=True), np.uint64)
+assert_type(def_gen.integers(0, 18446744073709551615, dtype="u8", endpoint=True), np.uint64)
+assert_type(def_gen.integers(I_u8_low_like, 18446744073709551615, dtype="u8", endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_high_open, dtype="u8"), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_low, I_u8_high_open, dtype="u8"), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(0, I_u8_high_open, dtype="u8"), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_high_closed, dtype="u8", endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_low, I_u8_high_closed, dtype="u8", endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(0, I_u8_high_closed, dtype="u8", endpoint=True), npt.NDArray[np.uint64])
+
+assert_type(def_gen.integers(18446744073709551616, dtype="uint64"), np.uint64)
+assert_type(def_gen.integers(0, 18446744073709551616, dtype="uint64"), np.uint64)
+assert_type(def_gen.integers(18446744073709551615, dtype="uint64", endpoint=True), np.uint64)
+assert_type(def_gen.integers(0, 18446744073709551615, dtype="uint64", endpoint=True), np.uint64)
+assert_type(def_gen.integers(I_u8_low_like, 18446744073709551615, dtype="uint64", endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_high_open, dtype="uint64"), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_low, I_u8_high_open, dtype="uint64"), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(0, I_u8_high_open, dtype="uint64"), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_high_closed, dtype="uint64", endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_low, I_u8_high_closed, dtype="uint64", endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(0, I_u8_high_closed, dtype="uint64", endpoint=True), npt.NDArray[np.uint64])
+
+assert_type(def_gen.integers(18446744073709551616, dtype=np.uint64), np.uint64)
+assert_type(def_gen.integers(0, 18446744073709551616, dtype=np.uint64), np.uint64)
+assert_type(def_gen.integers(18446744073709551615, dtype=np.uint64, endpoint=True), np.uint64)
+assert_type(def_gen.integers(0, 18446744073709551615, dtype=np.uint64, endpoint=True), np.uint64)
+assert_type(def_gen.integers(I_u8_low_like, 18446744073709551615, dtype=np.uint64, endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_high_open, dtype=np.uint64), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_low, I_u8_high_open, dtype=np.uint64), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(0, I_u8_high_open, dtype=np.uint64), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_high_closed, dtype=np.uint64, endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(I_u8_low, I_u8_high_closed, dtype=np.uint64, endpoint=True), npt.NDArray[np.uint64])
+assert_type(def_gen.integers(0, I_u8_high_closed, dtype=np.uint64, endpoint=True), npt.NDArray[np.uint64])
+
+I_i1_low: npt.NDArray[np.int8] = np.array([-128], dtype=np.int8)
+I_i1_low_like: list[int] = [-128]
+I_i1_high_open: npt.NDArray[np.int8] = np.array([127], dtype=np.int8)
+I_i1_high_closed: npt.NDArray[np.int8] = np.array([127], dtype=np.int8)
+
+assert_type(def_gen.integers(128, dtype="i1"), np.int8)
+assert_type(def_gen.integers(-128, 128, dtype="i1"), np.int8)
+assert_type(def_gen.integers(127, dtype="i1", endpoint=True), np.int8)
+assert_type(def_gen.integers(-128, 127, dtype="i1", endpoint=True), np.int8)
+assert_type(def_gen.integers(I_i1_low_like, 127, dtype="i1", endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_high_open, dtype="i1"), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_low, I_i1_high_open, dtype="i1"), npt.NDArray[np.int8])
+assert_type(def_gen.integers(-128, I_i1_high_open, dtype="i1"), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_high_closed, dtype="i1", endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_low, I_i1_high_closed, dtype="i1", endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(-128, I_i1_high_closed, dtype="i1", endpoint=True), npt.NDArray[np.int8])
+
+assert_type(def_gen.integers(128, dtype="int8"), np.int8)
+assert_type(def_gen.integers(-128, 128, dtype="int8"), np.int8)
+assert_type(def_gen.integers(127, dtype="int8", endpoint=True), np.int8)
+assert_type(def_gen.integers(-128, 127, dtype="int8", endpoint=True), np.int8)
+assert_type(def_gen.integers(I_i1_low_like, 127, dtype="int8", endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_high_open, dtype="int8"), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_low, I_i1_high_open, dtype="int8"), npt.NDArray[np.int8])
+assert_type(def_gen.integers(-128, I_i1_high_open, dtype="int8"), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_high_closed, dtype="int8", endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_low, I_i1_high_closed, dtype="int8", endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(-128, I_i1_high_closed, dtype="int8", endpoint=True), npt.NDArray[np.int8])
+
+assert_type(def_gen.integers(128, dtype=np.int8), np.int8)
+assert_type(def_gen.integers(-128, 128, dtype=np.int8), np.int8)
+assert_type(def_gen.integers(127, dtype=np.int8, endpoint=True), np.int8)
+assert_type(def_gen.integers(-128, 127, dtype=np.int8, endpoint=True), np.int8)
+assert_type(def_gen.integers(I_i1_low_like, 127, dtype=np.int8, endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_high_open, dtype=np.int8), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_low, I_i1_high_open, dtype=np.int8), npt.NDArray[np.int8])
+assert_type(def_gen.integers(-128, I_i1_high_open, dtype=np.int8), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_high_closed, dtype=np.int8, endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(I_i1_low, I_i1_high_closed, dtype=np.int8, endpoint=True), npt.NDArray[np.int8])
+assert_type(def_gen.integers(-128, I_i1_high_closed, dtype=np.int8, endpoint=True), npt.NDArray[np.int8])
+
+I_i2_low: npt.NDArray[np.int16] = np.array([-32768], dtype=np.int16)
+I_i2_low_like: list[int] = [-32768]
+I_i2_high_open: npt.NDArray[np.int16] = np.array([32767], dtype=np.int16)
+I_i2_high_closed: npt.NDArray[np.int16] = np.array([32767], dtype=np.int16)
+
+assert_type(def_gen.integers(32768, dtype="i2"), np.int16)
+assert_type(def_gen.integers(-32768, 32768, dtype="i2"), np.int16)
+assert_type(def_gen.integers(32767, dtype="i2", endpoint=True), np.int16)
+assert_type(def_gen.integers(-32768, 32767, dtype="i2", endpoint=True), np.int16)
+assert_type(def_gen.integers(I_i2_low_like, 32767, dtype="i2", endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_high_open, dtype="i2"), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_low, I_i2_high_open, dtype="i2"), npt.NDArray[np.int16])
+assert_type(def_gen.integers(-32768, I_i2_high_open, dtype="i2"), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_high_closed, dtype="i2", endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_low, I_i2_high_closed, dtype="i2", endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(-32768, I_i2_high_closed, dtype="i2", endpoint=True), npt.NDArray[np.int16])
+
+assert_type(def_gen.integers(32768, dtype="int16"), np.int16)
+assert_type(def_gen.integers(-32768, 32768, dtype="int16"), np.int16)
+assert_type(def_gen.integers(32767, dtype="int16", endpoint=True), np.int16)
+assert_type(def_gen.integers(-32768, 32767, dtype="int16", endpoint=True), np.int16)
+assert_type(def_gen.integers(I_i2_low_like, 32767, dtype="int16", endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_high_open, dtype="int16"), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_low, I_i2_high_open, dtype="int16"), npt.NDArray[np.int16])
+assert_type(def_gen.integers(-32768, I_i2_high_open, dtype="int16"), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_high_closed, dtype="int16", endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_low, I_i2_high_closed, dtype="int16", endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(-32768, I_i2_high_closed, dtype="int16", endpoint=True), npt.NDArray[np.int16])
+
+assert_type(def_gen.integers(32768, dtype=np.int16), np.int16)
+assert_type(def_gen.integers(-32768, 32768, dtype=np.int16), np.int16)
+assert_type(def_gen.integers(32767, dtype=np.int16, endpoint=True), np.int16)
+assert_type(def_gen.integers(-32768, 32767, dtype=np.int16, endpoint=True), np.int16)
+assert_type(def_gen.integers(I_i2_low_like, 32767, dtype=np.int16, endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_high_open, dtype=np.int16), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_low, I_i2_high_open, dtype=np.int16), npt.NDArray[np.int16])
+assert_type(def_gen.integers(-32768, I_i2_high_open, dtype=np.int16), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_high_closed, dtype=np.int16, endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(I_i2_low, I_i2_high_closed, dtype=np.int16, endpoint=True), npt.NDArray[np.int16])
+assert_type(def_gen.integers(-32768, I_i2_high_closed, dtype=np.int16, endpoint=True), npt.NDArray[np.int16])
+
+I_i4_low: npt.NDArray[np.int32] = np.array([-2147483648], dtype=np.int32)
+I_i4_low_like: list[int] = [-2147483648]
+I_i4_high_open: npt.NDArray[np.int32] = np.array([2147483647], dtype=np.int32)
+I_i4_high_closed: npt.NDArray[np.int32] = np.array([2147483647], dtype=np.int32)
+
+assert_type(def_gen.integers(2147483648, dtype="i4"), np.int32)
+assert_type(def_gen.integers(-2147483648, 2147483648, dtype="i4"), np.int32)
+assert_type(def_gen.integers(2147483647, dtype="i4", endpoint=True), np.int32)
+assert_type(def_gen.integers(-2147483648, 2147483647, dtype="i4", endpoint=True), np.int32)
+assert_type(def_gen.integers(I_i4_low_like, 2147483647, dtype="i4", endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_high_open, dtype="i4"), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_low, I_i4_high_open, dtype="i4"), npt.NDArray[np.int32])
+assert_type(def_gen.integers(-2147483648, I_i4_high_open, dtype="i4"), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_high_closed, dtype="i4", endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_low, I_i4_high_closed, dtype="i4", endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(-2147483648, I_i4_high_closed, dtype="i4", endpoint=True), npt.NDArray[np.int32])
+
+assert_type(def_gen.integers(2147483648, dtype="int32"), np.int32)
+assert_type(def_gen.integers(-2147483648, 2147483648, dtype="int32"), np.int32)
+assert_type(def_gen.integers(2147483647, dtype="int32", endpoint=True), np.int32)
+assert_type(def_gen.integers(-2147483648, 2147483647, dtype="int32", endpoint=True), np.int32)
+assert_type(def_gen.integers(I_i4_low_like, 2147483647, dtype="int32", endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_high_open, dtype="int32"), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_low, I_i4_high_open, dtype="int32"), npt.NDArray[np.int32])
+assert_type(def_gen.integers(-2147483648, I_i4_high_open, dtype="int32"), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_high_closed, dtype="int32", endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_low, I_i4_high_closed, dtype="int32", endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(-2147483648, I_i4_high_closed, dtype="int32", endpoint=True), npt.NDArray[np.int32])
+
+assert_type(def_gen.integers(2147483648, dtype=np.int32), np.int32)
+assert_type(def_gen.integers(-2147483648, 2147483648, dtype=np.int32), np.int32)
+assert_type(def_gen.integers(2147483647, dtype=np.int32, endpoint=True), np.int32)
+assert_type(def_gen.integers(-2147483648, 2147483647, dtype=np.int32, endpoint=True), np.int32)
+assert_type(def_gen.integers(I_i4_low_like, 2147483647, dtype=np.int32, endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_high_open, dtype=np.int32), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_low, I_i4_high_open, dtype=np.int32), npt.NDArray[np.int32])
+assert_type(def_gen.integers(-2147483648, I_i4_high_open, dtype=np.int32), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_high_closed, dtype=np.int32, endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(I_i4_low, I_i4_high_closed, dtype=np.int32, endpoint=True), npt.NDArray[np.int32])
+assert_type(def_gen.integers(-2147483648, I_i4_high_closed, dtype=np.int32, endpoint=True), npt.NDArray[np.int32])
+
+I_i8_low: npt.NDArray[np.int64] = np.array([-9223372036854775808], dtype=np.int64)
+I_i8_low_like: list[int] = [-9223372036854775808]
+I_i8_high_open: npt.NDArray[np.int64] = np.array([9223372036854775807], dtype=np.int64)
+I_i8_high_closed: npt.NDArray[np.int64] = np.array([9223372036854775807], dtype=np.int64)
+
+assert_type(def_gen.integers(9223372036854775808, dtype="i8"), np.int64)
+assert_type(def_gen.integers(-9223372036854775808, 9223372036854775808, dtype="i8"), np.int64)
+assert_type(def_gen.integers(9223372036854775807, dtype="i8", endpoint=True), np.int64)
+assert_type(def_gen.integers(-9223372036854775808, 9223372036854775807, dtype="i8", endpoint=True), np.int64)
+assert_type(def_gen.integers(I_i8_low_like, 9223372036854775807, dtype="i8", endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_high_open, dtype="i8"), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_low, I_i8_high_open, dtype="i8"), npt.NDArray[np.int64])
+assert_type(def_gen.integers(-9223372036854775808, I_i8_high_open, dtype="i8"), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_high_closed, dtype="i8", endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_low, I_i8_high_closed, dtype="i8", endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(-9223372036854775808, I_i8_high_closed, dtype="i8", endpoint=True), npt.NDArray[np.int64])
+
+assert_type(def_gen.integers(9223372036854775808, dtype="int64"), np.int64)
+assert_type(def_gen.integers(-9223372036854775808, 9223372036854775808, dtype="int64"), np.int64)
+assert_type(def_gen.integers(9223372036854775807, dtype="int64", endpoint=True), np.int64)
+assert_type(def_gen.integers(-9223372036854775808, 9223372036854775807, dtype="int64", endpoint=True), np.int64)
+assert_type(def_gen.integers(I_i8_low_like, 9223372036854775807, dtype="int64", endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_high_open, dtype="int64"), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_low, I_i8_high_open, dtype="int64"), npt.NDArray[np.int64])
+assert_type(def_gen.integers(-9223372036854775808, I_i8_high_open, dtype="int64"), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_high_closed, dtype="int64", endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_low, I_i8_high_closed, dtype="int64", endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(-9223372036854775808, I_i8_high_closed, dtype="int64", endpoint=True), npt.NDArray[np.int64])
+
+assert_type(def_gen.integers(9223372036854775808, dtype=np.int64), np.int64)
+assert_type(def_gen.integers(-9223372036854775808, 9223372036854775808, dtype=np.int64), np.int64)
+assert_type(def_gen.integers(9223372036854775807, dtype=np.int64, endpoint=True), np.int64)
+assert_type(def_gen.integers(-9223372036854775808, 9223372036854775807, dtype=np.int64, endpoint=True), np.int64)
+assert_type(def_gen.integers(I_i8_low_like, 9223372036854775807, dtype=np.int64, endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_high_open, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_low, I_i8_high_open, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(def_gen.integers(-9223372036854775808, I_i8_high_open, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_high_closed, dtype=np.int64, endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(I_i8_low, I_i8_high_closed, dtype=np.int64, endpoint=True), npt.NDArray[np.int64])
+assert_type(def_gen.integers(-9223372036854775808, I_i8_high_closed, dtype=np.int64, endpoint=True), npt.NDArray[np.int64])
+
+assert_type(def_gen.bit_generator, np.random.BitGenerator)
+
+assert_type(def_gen.bytes(2), bytes)
+
+assert_type(def_gen.choice(5), int)
+assert_type(def_gen.choice(5, 3), npt.NDArray[np.int64])
+assert_type(def_gen.choice(5, 3, replace=True), npt.NDArray[np.int64])
+assert_type(def_gen.choice(5, 3, p=[1 / 5] * 5), npt.NDArray[np.int64])
+assert_type(def_gen.choice(5, 3, p=[1 / 5] * 5, replace=False), npt.NDArray[np.int64])
+
+assert_type(def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"]), Any)
+assert_type(def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3), npt.NDArray[Any])
+assert_type(def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, p=[1 / 4] * 4), npt.NDArray[Any])
+assert_type(def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=True), npt.NDArray[Any])
+assert_type(def_gen.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=False, p=np.array([1 / 8, 1 / 8, 1 / 2, 1 / 4])), npt.NDArray[Any])
+
+assert_type(def_gen.dirichlet([0.5, 0.5]), npt.NDArray[np.float64])
+assert_type(def_gen.dirichlet(np.array([0.5, 0.5])), npt.NDArray[np.float64])
+assert_type(def_gen.dirichlet(np.array([0.5, 0.5]), size=3), npt.NDArray[np.float64])
+
+assert_type(def_gen.multinomial(20, [1 / 6.0] * 6), npt.NDArray[np.int64])
+assert_type(def_gen.multinomial(20, np.array([0.5, 0.5])), npt.NDArray[np.int64])
+assert_type(def_gen.multinomial(20, [1 / 6.0] * 6, size=2), npt.NDArray[np.int64])
+assert_type(def_gen.multinomial([[10], [20]], [1 / 6.0] * 6, size=(2, 2)), npt.NDArray[np.int64])
+assert_type(def_gen.multinomial(np.array([[10], [20]]), np.array([0.5, 0.5]), size=(2, 2)), npt.NDArray[np.int64])
+
+assert_type(def_gen.multivariate_hypergeometric([3, 5, 7], 2), npt.NDArray[np.int64])
+assert_type(def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2), npt.NDArray[np.int64])
+assert_type(def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2, size=4), npt.NDArray[np.int64])
+assert_type(def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2, size=(4, 7)), npt.NDArray[np.int64])
+assert_type(def_gen.multivariate_hypergeometric([3, 5, 7], 2, method="count"), npt.NDArray[np.int64])
+assert_type(def_gen.multivariate_hypergeometric(np.array([3, 5, 7]), 2, method="marginals"), npt.NDArray[np.int64])
+
+assert_type(def_gen.multivariate_normal([0.0], [[1.0]]), npt.NDArray[np.float64])
+assert_type(def_gen.multivariate_normal([0.0], np.array([[1.0]])), npt.NDArray[np.float64])
+assert_type(def_gen.multivariate_normal(np.array([0.0]), [[1.0]]), npt.NDArray[np.float64])
+assert_type(def_gen.multivariate_normal([0.0], np.array([[1.0]])), npt.NDArray[np.float64])
+
+assert_type(def_gen.permutation(10), npt.NDArray[np.int64])
+assert_type(def_gen.permutation([1, 2, 3, 4]), npt.NDArray[Any])
+assert_type(def_gen.permutation(np.array([1, 2, 3, 4])), npt.NDArray[Any])
+assert_type(def_gen.permutation(D_2D, axis=1), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D_like), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D, axis=1), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D, out=D_2D), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D_like, out=D_2D), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D_like, out=D_2D), npt.NDArray[Any])
+assert_type(def_gen.permuted(D_2D, axis=1, out=D_2D), npt.NDArray[Any])
+
+assert_type(def_gen.shuffle(np.arange(10)), None)
+assert_type(def_gen.shuffle([1, 2, 3, 4, 5]), None)
+assert_type(def_gen.shuffle(D_2D, axis=1), None)
+
+assert_type(np.random.Generator(pcg64), np.random.Generator)
+assert_type(def_gen.__str__(), str)
+assert_type(def_gen.__repr__(), str)
+assert_type(def_gen.__setstate__(dict(def_gen.bit_generator.state)), None)
+
+# RandomState
+random_st: np.random.RandomState = np.random.RandomState()
+
+assert_type(random_st.standard_normal(), float)
+assert_type(random_st.standard_normal(size=None), float)
+assert_type(random_st.standard_normal(size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.random(), float)
+assert_type(random_st.random(size=None), float)
+assert_type(random_st.random(size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.standard_cauchy(), float)
+assert_type(random_st.standard_cauchy(size=None), float)
+assert_type(random_st.standard_cauchy(size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.standard_exponential(), float)
+assert_type(random_st.standard_exponential(size=None), float)
+assert_type(random_st.standard_exponential(size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.zipf(1.5), int)
+assert_type(random_st.zipf(1.5, size=None), int)
+assert_type(random_st.zipf(1.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.zipf(D_arr_1p5), npt.NDArray[np.long])
+assert_type(random_st.zipf(D_arr_1p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.zipf(D_arr_like_1p5), npt.NDArray[np.long])
+assert_type(random_st.zipf(D_arr_like_1p5, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.weibull(0.5), float)
+assert_type(random_st.weibull(0.5, size=None), float)
+assert_type(random_st.weibull(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.weibull(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.weibull(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.weibull(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.weibull(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.standard_t(0.5), float)
+assert_type(random_st.standard_t(0.5, size=None), float)
+assert_type(random_st.standard_t(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.standard_t(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.standard_t(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.standard_t(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.standard_t(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.poisson(0.5), int)
+assert_type(random_st.poisson(0.5, size=None), int)
+assert_type(random_st.poisson(0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.poisson(D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.poisson(D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.poisson(D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.poisson(D_arr_like_0p5, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.power(0.5), float)
+assert_type(random_st.power(0.5, size=None), float)
+assert_type(random_st.power(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.power(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.power(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.power(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.power(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.pareto(0.5), float)
+assert_type(random_st.pareto(0.5, size=None), float)
+assert_type(random_st.pareto(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.pareto(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.pareto(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.pareto(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.pareto(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.chisquare(0.5), float)
+assert_type(random_st.chisquare(0.5, size=None), float)
+assert_type(random_st.chisquare(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.chisquare(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.chisquare(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.chisquare(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.chisquare(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.exponential(0.5), float)
+assert_type(random_st.exponential(0.5, size=None), float)
+assert_type(random_st.exponential(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.exponential(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.exponential(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.exponential(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.exponential(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.geometric(0.5), int)
+assert_type(random_st.geometric(0.5, size=None), int)
+assert_type(random_st.geometric(0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.geometric(D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.geometric(D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.geometric(D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.geometric(D_arr_like_0p5, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.logseries(0.5), int)
+assert_type(random_st.logseries(0.5, size=None), int)
+assert_type(random_st.logseries(0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.logseries(D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.logseries(D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.logseries(D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.logseries(D_arr_like_0p5, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.rayleigh(0.5), float)
+assert_type(random_st.rayleigh(0.5, size=None), float)
+assert_type(random_st.rayleigh(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.rayleigh(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.rayleigh(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.rayleigh(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.rayleigh(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.standard_gamma(0.5), float)
+assert_type(random_st.standard_gamma(0.5, size=None), float)
+assert_type(random_st.standard_gamma(0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.standard_gamma(D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.standard_gamma(D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.standard_gamma(D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.standard_gamma(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.standard_gamma(D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.vonmises(0.5, 0.5), float)
+assert_type(random_st.vonmises(0.5, 0.5, size=None), float)
+assert_type(random_st.vonmises(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.vonmises(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.wald(0.5, 0.5), float)
+assert_type(random_st.wald(0.5, 0.5, size=None), float)
+assert_type(random_st.wald(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.wald(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.wald(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.wald(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.wald(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.uniform(0.5, 0.5), float)
+assert_type(random_st.uniform(0.5, 0.5, size=None), float)
+assert_type(random_st.uniform(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.uniform(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.uniform(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.uniform(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.uniform(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.beta(0.5, 0.5), float)
+assert_type(random_st.beta(0.5, 0.5, size=None), float)
+assert_type(random_st.beta(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.beta(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.beta(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.beta(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.beta(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.f(0.5, 0.5), float)
+assert_type(random_st.f(0.5, 0.5, size=None), float)
+assert_type(random_st.f(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.f(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.f(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.f(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.f(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.gamma(0.5, 0.5), float)
+assert_type(random_st.gamma(0.5, 0.5, size=None), float)
+assert_type(random_st.gamma(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.gamma(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gamma(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.gamma(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gamma(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.gumbel(0.5, 0.5), float)
+assert_type(random_st.gumbel(0.5, 0.5, size=None), float)
+assert_type(random_st.gumbel(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.gumbel(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.laplace(0.5, 0.5), float)
+assert_type(random_st.laplace(0.5, 0.5, size=None), float)
+assert_type(random_st.laplace(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.laplace(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.laplace(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.laplace(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.laplace(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.logistic(0.5, 0.5), float)
+assert_type(random_st.logistic(0.5, 0.5, size=None), float)
+assert_type(random_st.logistic(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.logistic(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.logistic(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.logistic(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.logistic(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.lognormal(0.5, 0.5), float)
+assert_type(random_st.lognormal(0.5, 0.5, size=None), float)
+assert_type(random_st.lognormal(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.lognormal(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.noncentral_chisquare(0.5, 0.5), float)
+assert_type(random_st.noncentral_chisquare(0.5, 0.5, size=None), float)
+assert_type(random_st.noncentral_chisquare(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_chisquare(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.normal(0.5, 0.5), float)
+assert_type(random_st.normal(0.5, 0.5, size=None), float)
+assert_type(random_st.normal(0.5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.normal(0.5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_0p5, 0.5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.normal(0.5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_like_0p5, 0.5), npt.NDArray[np.float64])
+assert_type(random_st.normal(0.5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_0p5, D_arr_0p5), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_like_0p5, D_arr_like_0p5), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_0p5, D_arr_0p5, size=1), npt.NDArray[np.float64])
+assert_type(random_st.normal(D_arr_like_0p5, D_arr_like_0p5, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.triangular(0.1, 0.5, 0.9), float)
+assert_type(random_st.triangular(0.1, 0.5, 0.9, size=None), float)
+assert_type(random_st.triangular(0.1, 0.5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_0p1, 0.5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.triangular(0.1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_0p1, 0.5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.triangular(0.1, D_arr_0p5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_like_0p1, 0.5, D_arr_0p9), npt.NDArray[np.float64])
+assert_type(random_st.triangular(0.5, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_0p1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_like_0p1, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.triangular(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.noncentral_f(0.1, 0.5, 0.9), float)
+assert_type(random_st.noncentral_f(0.1, 0.5, 0.9, size=None), float)
+assert_type(random_st.noncentral_f(0.1, 0.5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_0p1, 0.5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(0.1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_0p1, 0.5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(0.1, D_arr_0p5, 0.9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_like_0p1, 0.5, D_arr_0p9), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(0.5, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_0p1, D_arr_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, 0.9), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_0p1, D_arr_0p5, D_arr_0p9, size=1), npt.NDArray[np.float64])
+assert_type(random_st.noncentral_f(D_arr_like_0p1, D_arr_like_0p5, D_arr_like_0p9, size=1), npt.NDArray[np.float64])
+
+assert_type(random_st.binomial(10, 0.5), int)
+assert_type(random_st.binomial(10, 0.5, size=None), int)
+assert_type(random_st.binomial(10, 0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_10, 0.5), npt.NDArray[np.long])
+assert_type(random_st.binomial(10, D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_10, 0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.binomial(10, D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_like_10, 0.5), npt.NDArray[np.long])
+assert_type(random_st.binomial(10, D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_10, D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_like_10, D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_10, D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.binomial(I_arr_like_10, D_arr_like_0p5, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.negative_binomial(10, 0.5), int)
+assert_type(random_st.negative_binomial(10, 0.5, size=None), int)
+assert_type(random_st.negative_binomial(10, 0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_10, 0.5), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(10, D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_10, 0.5, size=1), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(10, D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_like_10, 0.5), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(10, D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_10, D_arr_0p5), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_like_10, D_arr_like_0p5), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_10, D_arr_0p5, size=1), npt.NDArray[np.long])
+assert_type(random_st.negative_binomial(I_arr_like_10, D_arr_like_0p5, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.hypergeometric(20, 20, 10), int)
+assert_type(random_st.hypergeometric(20, 20, 10, size=None), int)
+assert_type(random_st.hypergeometric(20, 20, 10, size=1), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_20, 20, 10), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(20, I_arr_20, 10), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_20, 20, I_arr_like_10, size=1), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(20, I_arr_20, 10, size=1), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_like_20, 20, I_arr_10), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(20, I_arr_like_20, 10), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_20, I_arr_20, 10), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_like_20, I_arr_like_20, 10), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_20, I_arr_20, I_arr_10, size=1), npt.NDArray[np.long])
+assert_type(random_st.hypergeometric(I_arr_like_20, I_arr_like_20, I_arr_like_10, size=1), npt.NDArray[np.long])
+
+assert_type(random_st.randint(0, 100), int)
+assert_type(random_st.randint(100), int)
+assert_type(random_st.randint([100]), npt.NDArray[np.long])
+assert_type(random_st.randint(0, [100]), npt.NDArray[np.long])
+
+assert_type(random_st.randint(2, dtype=bool), bool)
+assert_type(random_st.randint(0, 2, dtype=bool), bool)
+assert_type(random_st.randint(I_bool_high_open, dtype=bool), npt.NDArray[np.bool])
+assert_type(random_st.randint(I_bool_low, I_bool_high_open, dtype=bool), npt.NDArray[np.bool])
+assert_type(random_st.randint(0, I_bool_high_open, dtype=bool), npt.NDArray[np.bool])
+
+assert_type(random_st.randint(2, dtype=np.bool), np.bool)
+assert_type(random_st.randint(0, 2, dtype=np.bool), np.bool)
+assert_type(random_st.randint(I_bool_high_open, dtype=np.bool), npt.NDArray[np.bool])
+assert_type(random_st.randint(I_bool_low, I_bool_high_open, dtype=np.bool), npt.NDArray[np.bool])
+assert_type(random_st.randint(0, I_bool_high_open, dtype=np.bool), npt.NDArray[np.bool])
+
+assert_type(random_st.randint(256, dtype="u1"), np.uint8)
+assert_type(random_st.randint(0, 256, dtype="u1"), np.uint8)
+assert_type(random_st.randint(I_u1_high_open, dtype="u1"), npt.NDArray[np.uint8])
+assert_type(random_st.randint(I_u1_low, I_u1_high_open, dtype="u1"), npt.NDArray[np.uint8])
+assert_type(random_st.randint(0, I_u1_high_open, dtype="u1"), npt.NDArray[np.uint8])
+
+assert_type(random_st.randint(256, dtype="uint8"), np.uint8)
+assert_type(random_st.randint(0, 256, dtype="uint8"), np.uint8)
+assert_type(random_st.randint(I_u1_high_open, dtype="uint8"), npt.NDArray[np.uint8])
+assert_type(random_st.randint(I_u1_low, I_u1_high_open, dtype="uint8"), npt.NDArray[np.uint8])
+assert_type(random_st.randint(0, I_u1_high_open, dtype="uint8"), npt.NDArray[np.uint8])
+
+assert_type(random_st.randint(256, dtype=np.uint8), np.uint8)
+assert_type(random_st.randint(0, 256, dtype=np.uint8), np.uint8)
+assert_type(random_st.randint(I_u1_high_open, dtype=np.uint8), npt.NDArray[np.uint8])
+assert_type(random_st.randint(I_u1_low, I_u1_high_open, dtype=np.uint8), npt.NDArray[np.uint8])
+assert_type(random_st.randint(0, I_u1_high_open, dtype=np.uint8), npt.NDArray[np.uint8])
+
+assert_type(random_st.randint(65536, dtype="u2"), np.uint16)
+assert_type(random_st.randint(0, 65536, dtype="u2"), np.uint16)
+assert_type(random_st.randint(I_u2_high_open, dtype="u2"), npt.NDArray[np.uint16])
+assert_type(random_st.randint(I_u2_low, I_u2_high_open, dtype="u2"), npt.NDArray[np.uint16])
+assert_type(random_st.randint(0, I_u2_high_open, dtype="u2"), npt.NDArray[np.uint16])
+
+assert_type(random_st.randint(65536, dtype="uint16"), np.uint16)
+assert_type(random_st.randint(0, 65536, dtype="uint16"), np.uint16)
+assert_type(random_st.randint(I_u2_high_open, dtype="uint16"), npt.NDArray[np.uint16])
+assert_type(random_st.randint(I_u2_low, I_u2_high_open, dtype="uint16"), npt.NDArray[np.uint16])
+assert_type(random_st.randint(0, I_u2_high_open, dtype="uint16"), npt.NDArray[np.uint16])
+
+assert_type(random_st.randint(65536, dtype=np.uint16), np.uint16)
+assert_type(random_st.randint(0, 65536, dtype=np.uint16), np.uint16)
+assert_type(random_st.randint(I_u2_high_open, dtype=np.uint16), npt.NDArray[np.uint16])
+assert_type(random_st.randint(I_u2_low, I_u2_high_open, dtype=np.uint16), npt.NDArray[np.uint16])
+assert_type(random_st.randint(0, I_u2_high_open, dtype=np.uint16), npt.NDArray[np.uint16])
+
+assert_type(random_st.randint(4294967296, dtype="u4"), np.uint32)
+assert_type(random_st.randint(0, 4294967296, dtype="u4"), np.uint32)
+assert_type(random_st.randint(I_u4_high_open, dtype="u4"), npt.NDArray[np.uint32])
+assert_type(random_st.randint(I_u4_low, I_u4_high_open, dtype="u4"), npt.NDArray[np.uint32])
+assert_type(random_st.randint(0, I_u4_high_open, dtype="u4"), npt.NDArray[np.uint32])
+
+assert_type(random_st.randint(4294967296, dtype="uint32"), np.uint32)
+assert_type(random_st.randint(0, 4294967296, dtype="uint32"), np.uint32)
+assert_type(random_st.randint(I_u4_high_open, dtype="uint32"), npt.NDArray[np.uint32])
+assert_type(random_st.randint(I_u4_low, I_u4_high_open, dtype="uint32"), npt.NDArray[np.uint32])
+assert_type(random_st.randint(0, I_u4_high_open, dtype="uint32"), npt.NDArray[np.uint32])
+
+assert_type(random_st.randint(4294967296, dtype=np.uint32), np.uint32)
+assert_type(random_st.randint(0, 4294967296, dtype=np.uint32), np.uint32)
+assert_type(random_st.randint(I_u4_high_open, dtype=np.uint32), npt.NDArray[np.uint32])
+assert_type(random_st.randint(I_u4_low, I_u4_high_open, dtype=np.uint32), npt.NDArray[np.uint32])
+assert_type(random_st.randint(0, I_u4_high_open, dtype=np.uint32), npt.NDArray[np.uint32])
+
+assert_type(random_st.randint(4294967296, dtype=np.uint), np.uint)
+assert_type(random_st.randint(0, 4294967296, dtype=np.uint), np.uint)
+assert_type(random_st.randint(I_u4_high_open, dtype=np.uint), npt.NDArray[np.uint])
+assert_type(random_st.randint(I_u4_low, I_u4_high_open, dtype=np.uint), npt.NDArray[np.uint])
+assert_type(random_st.randint(0, I_u4_high_open, dtype=np.uint), npt.NDArray[np.uint])
+
+assert_type(random_st.randint(18446744073709551616, dtype="u8"), np.uint64)
+assert_type(random_st.randint(0, 18446744073709551616, dtype="u8"), np.uint64)
+assert_type(random_st.randint(I_u8_high_open, dtype="u8"), npt.NDArray[np.uint64])
+assert_type(random_st.randint(I_u8_low, I_u8_high_open, dtype="u8"), npt.NDArray[np.uint64])
+assert_type(random_st.randint(0, I_u8_high_open, dtype="u8"), npt.NDArray[np.uint64])
+
+assert_type(random_st.randint(18446744073709551616, dtype="uint64"), np.uint64)
+assert_type(random_st.randint(0, 18446744073709551616, dtype="uint64"), np.uint64)
+assert_type(random_st.randint(I_u8_high_open, dtype="uint64"), npt.NDArray[np.uint64])
+assert_type(random_st.randint(I_u8_low, I_u8_high_open, dtype="uint64"), npt.NDArray[np.uint64])
+assert_type(random_st.randint(0, I_u8_high_open, dtype="uint64"), npt.NDArray[np.uint64])
+
+assert_type(random_st.randint(18446744073709551616, dtype=np.uint64), np.uint64)
+assert_type(random_st.randint(0, 18446744073709551616, dtype=np.uint64), np.uint64)
+assert_type(random_st.randint(I_u8_high_open, dtype=np.uint64), npt.NDArray[np.uint64])
+assert_type(random_st.randint(I_u8_low, I_u8_high_open, dtype=np.uint64), npt.NDArray[np.uint64])
+assert_type(random_st.randint(0, I_u8_high_open, dtype=np.uint64), npt.NDArray[np.uint64])
+
+assert_type(random_st.randint(128, dtype="i1"), np.int8)
+assert_type(random_st.randint(-128, 128, dtype="i1"), np.int8)
+assert_type(random_st.randint(I_i1_high_open, dtype="i1"), npt.NDArray[np.int8])
+assert_type(random_st.randint(I_i1_low, I_i1_high_open, dtype="i1"), npt.NDArray[np.int8])
+assert_type(random_st.randint(-128, I_i1_high_open, dtype="i1"), npt.NDArray[np.int8])
+
+assert_type(random_st.randint(128, dtype="int8"), np.int8)
+assert_type(random_st.randint(-128, 128, dtype="int8"), np.int8)
+assert_type(random_st.randint(I_i1_high_open, dtype="int8"), npt.NDArray[np.int8])
+assert_type(random_st.randint(I_i1_low, I_i1_high_open, dtype="int8"), npt.NDArray[np.int8])
+assert_type(random_st.randint(-128, I_i1_high_open, dtype="int8"), npt.NDArray[np.int8])
+
+assert_type(random_st.randint(128, dtype=np.int8), np.int8)
+assert_type(random_st.randint(-128, 128, dtype=np.int8), np.int8)
+assert_type(random_st.randint(I_i1_high_open, dtype=np.int8), npt.NDArray[np.int8])
+assert_type(random_st.randint(I_i1_low, I_i1_high_open, dtype=np.int8), npt.NDArray[np.int8])
+assert_type(random_st.randint(-128, I_i1_high_open, dtype=np.int8), npt.NDArray[np.int8])
+
+assert_type(random_st.randint(32768, dtype="i2"), np.int16)
+assert_type(random_st.randint(-32768, 32768, dtype="i2"), np.int16)
+assert_type(random_st.randint(I_i2_high_open, dtype="i2"), npt.NDArray[np.int16])
+assert_type(random_st.randint(I_i2_low, I_i2_high_open, dtype="i2"), npt.NDArray[np.int16])
+assert_type(random_st.randint(-32768, I_i2_high_open, dtype="i2"), npt.NDArray[np.int16])
+
+assert_type(random_st.randint(32768, dtype="int16"), np.int16)
+assert_type(random_st.randint(-32768, 32768, dtype="int16"), np.int16)
+assert_type(random_st.randint(I_i2_high_open, dtype="int16"), npt.NDArray[np.int16])
+assert_type(random_st.randint(I_i2_low, I_i2_high_open, dtype="int16"), npt.NDArray[np.int16])
+assert_type(random_st.randint(-32768, I_i2_high_open, dtype="int16"), npt.NDArray[np.int16])
+
+assert_type(random_st.randint(32768, dtype=np.int16), np.int16)
+assert_type(random_st.randint(-32768, 32768, dtype=np.int16), np.int16)
+assert_type(random_st.randint(I_i2_high_open, dtype=np.int16), npt.NDArray[np.int16])
+assert_type(random_st.randint(I_i2_low, I_i2_high_open, dtype=np.int16), npt.NDArray[np.int16])
+assert_type(random_st.randint(-32768, I_i2_high_open, dtype=np.int16), npt.NDArray[np.int16])
+
+assert_type(random_st.randint(2147483648, dtype="i4"), np.int32)
+assert_type(random_st.randint(-2147483648, 2147483648, dtype="i4"), np.int32)
+assert_type(random_st.randint(I_i4_high_open, dtype="i4"), npt.NDArray[np.int32])
+assert_type(random_st.randint(I_i4_low, I_i4_high_open, dtype="i4"), npt.NDArray[np.int32])
+assert_type(random_st.randint(-2147483648, I_i4_high_open, dtype="i4"), npt.NDArray[np.int32])
+
+assert_type(random_st.randint(2147483648, dtype="int32"), np.int32)
+assert_type(random_st.randint(-2147483648, 2147483648, dtype="int32"), np.int32)
+assert_type(random_st.randint(I_i4_high_open, dtype="int32"), npt.NDArray[np.int32])
+assert_type(random_st.randint(I_i4_low, I_i4_high_open, dtype="int32"), npt.NDArray[np.int32])
+assert_type(random_st.randint(-2147483648, I_i4_high_open, dtype="int32"), npt.NDArray[np.int32])
+
+assert_type(random_st.randint(2147483648, dtype=np.int32), np.int32)
+assert_type(random_st.randint(-2147483648, 2147483648, dtype=np.int32), np.int32)
+assert_type(random_st.randint(I_i4_high_open, dtype=np.int32), npt.NDArray[np.int32])
+assert_type(random_st.randint(I_i4_low, I_i4_high_open, dtype=np.int32), npt.NDArray[np.int32])
+assert_type(random_st.randint(-2147483648, I_i4_high_open, dtype=np.int32), npt.NDArray[np.int32])
+
+assert_type(random_st.randint(2147483648, dtype=np.int_), np.int_)
+assert_type(random_st.randint(-2147483648, 2147483648, dtype=np.int_), np.int_)
+assert_type(random_st.randint(I_i4_high_open, dtype=np.int_), npt.NDArray[np.int_])
+assert_type(random_st.randint(I_i4_low, I_i4_high_open, dtype=np.int_), npt.NDArray[np.int_])
+assert_type(random_st.randint(-2147483648, I_i4_high_open, dtype=np.int_), npt.NDArray[np.int_])
+
+assert_type(random_st.randint(9223372036854775808, dtype="i8"), np.int64)
+assert_type(random_st.randint(-9223372036854775808, 9223372036854775808, dtype="i8"), np.int64)
+assert_type(random_st.randint(I_i8_high_open, dtype="i8"), npt.NDArray[np.int64])
+assert_type(random_st.randint(I_i8_low, I_i8_high_open, dtype="i8"), npt.NDArray[np.int64])
+assert_type(random_st.randint(-9223372036854775808, I_i8_high_open, dtype="i8"), npt.NDArray[np.int64])
+
+assert_type(random_st.randint(9223372036854775808, dtype="int64"), np.int64)
+assert_type(random_st.randint(-9223372036854775808, 9223372036854775808, dtype="int64"), np.int64)
+assert_type(random_st.randint(I_i8_high_open, dtype="int64"), npt.NDArray[np.int64])
+assert_type(random_st.randint(I_i8_low, I_i8_high_open, dtype="int64"), npt.NDArray[np.int64])
+assert_type(random_st.randint(-9223372036854775808, I_i8_high_open, dtype="int64"), npt.NDArray[np.int64])
+
+assert_type(random_st.randint(9223372036854775808, dtype=np.int64), np.int64)
+assert_type(random_st.randint(-9223372036854775808, 9223372036854775808, dtype=np.int64), np.int64)
+assert_type(random_st.randint(I_i8_high_open, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(random_st.randint(I_i8_low, I_i8_high_open, dtype=np.int64), npt.NDArray[np.int64])
+assert_type(random_st.randint(-9223372036854775808, I_i8_high_open, dtype=np.int64), npt.NDArray[np.int64])
+
+assert_type(random_st._bit_generator, np.random.BitGenerator)
+
+assert_type(random_st.bytes(2), bytes)
+
+assert_type(random_st.choice(5), int)
+assert_type(random_st.choice(5, 3), npt.NDArray[np.long])
+assert_type(random_st.choice(5, 3, replace=True), npt.NDArray[np.long])
+assert_type(random_st.choice(5, 3, p=[1 / 5] * 5), npt.NDArray[np.long])
+assert_type(random_st.choice(5, 3, p=[1 / 5] * 5, replace=False), npt.NDArray[np.long])
+
+assert_type(random_st.choice(["pooh", "rabbit", "piglet", "Christopher"]), Any)
+assert_type(random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3), npt.NDArray[Any])
+assert_type(random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, p=[1 / 4] * 4), npt.NDArray[Any])
+assert_type(random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=True), npt.NDArray[Any])
+assert_type(random_st.choice(["pooh", "rabbit", "piglet", "Christopher"], 3, replace=False, p=np.array([1 / 8, 1 / 8, 1 / 2, 1 / 4])), npt.NDArray[Any])
+
+assert_type(random_st.dirichlet([0.5, 0.5]), npt.NDArray[np.float64])
+assert_type(random_st.dirichlet(np.array([0.5, 0.5])), npt.NDArray[np.float64])
+assert_type(random_st.dirichlet(np.array([0.5, 0.5]), size=3), npt.NDArray[np.float64])
+
+assert_type(random_st.multinomial(20, [1 / 6.0] * 6), npt.NDArray[np.long])
+assert_type(random_st.multinomial(20, np.array([0.5, 0.5])), npt.NDArray[np.long])
+assert_type(random_st.multinomial(20, [1 / 6.0] * 6, size=2), npt.NDArray[np.long])
+
+assert_type(random_st.multivariate_normal([0.0], [[1.0]]), npt.NDArray[np.float64])
+assert_type(random_st.multivariate_normal([0.0], np.array([[1.0]])), npt.NDArray[np.float64])
+assert_type(random_st.multivariate_normal(np.array([0.0]), [[1.0]]), npt.NDArray[np.float64])
+assert_type(random_st.multivariate_normal([0.0], np.array([[1.0]])), npt.NDArray[np.float64])
+
+assert_type(random_st.permutation(10), npt.NDArray[np.long])
+assert_type(random_st.permutation([1, 2, 3, 4]), npt.NDArray[Any])
+assert_type(random_st.permutation(np.array([1, 2, 3, 4])), npt.NDArray[Any])
+assert_type(random_st.permutation(D_2D), npt.NDArray[Any])
+
+assert_type(random_st.shuffle(np.arange(10)), None)
+assert_type(random_st.shuffle([1, 2, 3, 4, 5]), None)
+assert_type(random_st.shuffle(D_2D), None)
+
+assert_type(np.random.RandomState(pcg64), np.random.RandomState)
+assert_type(np.random.RandomState(0), np.random.RandomState)
+assert_type(np.random.RandomState([0, 1, 2]), np.random.RandomState)
+assert_type(random_st.__str__(), str)
+assert_type(random_st.__repr__(), str)
+random_st_state = random_st.__getstate__()
+assert_type(random_st_state, dict[str, Any])
+assert_type(random_st.__setstate__(random_st_state), None)
+assert_type(random_st.seed(), None)
+assert_type(random_st.seed(1), None)
+assert_type(random_st.seed([0, 1]), None)
+random_st_get_state = random_st.get_state()
+assert_type(random_st_state, dict[str, Any])
+random_st_get_state_legacy = random_st.get_state(legacy=True)
+assert_type(random_st_get_state_legacy, dict[str, Any] | tuple[str, npt.NDArray[np.uint32], int, int, float])
+assert_type(random_st.set_state(random_st_get_state), None)
+
+assert_type(random_st.rand(), float)
+assert_type(random_st.rand(1), npt.NDArray[np.float64])
+assert_type(random_st.rand(1, 2), npt.NDArray[np.float64])
+assert_type(random_st.randn(), float)
+assert_type(random_st.randn(1), npt.NDArray[np.float64])
+assert_type(random_st.randn(1, 2), npt.NDArray[np.float64])
+assert_type(random_st.random_sample(), float)
+assert_type(random_st.random_sample(1), npt.NDArray[np.float64])
+assert_type(random_st.random_sample(size=(1, 2)), npt.NDArray[np.float64])
+
+assert_type(random_st.tomaxint(), int)
+assert_type(random_st.tomaxint(1), npt.NDArray[np.int64])
+assert_type(random_st.tomaxint((1,)), npt.NDArray[np.int64])
+
+assert_type(np.random.mtrand.set_bit_generator(pcg64), None)
+assert_type(np.random.mtrand.get_bit_generator(), np.random.BitGenerator)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/rec.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/rec.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..d28f2730cd3c193c315c4df4d27848b9517a30aa
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/rec.pyi
@@ -0,0 +1,171 @@
+import io
+from typing import Any, TypeAlias, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+_RecArray: TypeAlias = np.recarray[tuple[Any, ...], np.dtype[np.record]]
+
+AR_i8: npt.NDArray[np.int64]
+REC_AR_V: _RecArray
+AR_LIST: list[npt.NDArray[np.int64]]
+
+record: np.record
+file_obj: io.BufferedIOBase
+
+assert_type(np.rec.format_parser(
+    formats=[np.float64, np.int64, np.bool],
+    names=["f8", "i8", "?"],
+    titles=None,
+    aligned=True,
+), np.rec.format_parser)
+assert_type(np.rec.format_parser.dtype, np.dtype[np.void])
+
+assert_type(record.field_a, Any)
+assert_type(record.field_b, Any)
+assert_type(record["field_a"], Any)
+assert_type(record["field_b"], Any)
+assert_type(record.pprint(), str)
+record.field_c = 5
+
+assert_type(REC_AR_V.field(0), Any)
+assert_type(REC_AR_V.field("field_a"), Any)
+assert_type(REC_AR_V.field(0, AR_i8), None)
+assert_type(REC_AR_V.field("field_a", AR_i8), None)
+assert_type(REC_AR_V["field_a"], npt.NDArray[Any])
+assert_type(REC_AR_V.field_a, Any)
+assert_type(REC_AR_V.__array_finalize__(object()), None)
+
+assert_type(
+    np.recarray(
+        shape=(10, 5),
+        formats=[np.float64, np.int64, np.bool],
+        order="K",
+        byteorder="|",
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.recarray(
+        shape=(10, 5),
+        dtype=[("f8", np.float64), ("i8", np.int64)],
+        strides=(5, 5),
+    ),
+    np.recarray,
+)
+
+assert_type(np.rec.fromarrays(AR_LIST), np.recarray)
+assert_type(
+    np.rec.fromarrays(AR_LIST, dtype=np.int64),
+    np.recarray,
+)
+assert_type(
+    np.rec.fromarrays(
+        AR_LIST,
+        formats=[np.int64, np.float64],
+        names=["i8", "f8"]
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.fromrecords((1, 1.5)),
+    _RecArray
+)
+
+assert_type(
+    np.rec.fromrecords(
+        [(1, 1.5)],
+        dtype=[("i8", np.int64), ("f8", np.float64)],
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.fromrecords(
+        REC_AR_V,
+        formats=[np.int64, np.float64],
+        names=["i8", "f8"]
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.fromstring(
+        b"(1, 1.5)",
+        dtype=[("i8", np.int64), ("f8", np.float64)],
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.fromstring(
+        REC_AR_V,
+        formats=[np.int64, np.float64],
+        names=["i8", "f8"]
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.fromfile(
+        "test_file.txt",
+        dtype=[("i8", np.int64), ("f8", np.float64)],
+    ),
+    np.recarray,
+)
+
+assert_type(
+    np.rec.fromfile(
+        file_obj,
+        formats=[np.int64, np.float64],
+        names=["i8", "f8"]
+    ),
+    _RecArray,
+)
+
+assert_type(np.rec.array(AR_i8), np.recarray[tuple[Any, ...], np.dtype[np.int64]])
+
+assert_type(
+    np.rec.array([(1, 1.5)], dtype=[("i8", np.int64), ("f8", np.float64)]),
+    np.recarray,
+)
+
+assert_type(
+    np.rec.array(
+        [(1, 1.5)],
+        formats=[np.int64, np.float64],
+        names=["i8", "f8"]
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.array(
+        None,
+        dtype=np.float64,
+        shape=(10, 3),
+    ),
+    np.recarray,
+)
+
+assert_type(
+    np.rec.array(
+        None,
+        formats=[np.int64, np.float64],
+        names=["i8", "f8"],
+        shape=(10, 3),
+    ),
+    _RecArray,
+)
+
+assert_type(
+    np.rec.array(file_obj, dtype=np.float64),
+    np.recarray,
+)
+
+assert_type(
+    np.rec.array(file_obj, formats=[np.int64, np.float64], names=["i8", "f8"]),
+    _RecArray,
+)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/scalars.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/scalars.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..06378f18f2ab58ef33d611587882c0ddee5f67ad
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/scalars.pyi
@@ -0,0 +1,191 @@
+from typing import Any, Literal, TypeAlias, assert_type
+
+import numpy as np
+
+_1: TypeAlias = Literal[1]
+
+b: np.bool
+u8: np.uint64
+i8: np.int64
+f8: np.float64
+c8: np.complex64
+c16: np.complex128
+m: np.timedelta64
+U: np.str_
+S: np.bytes_
+V: np.void
+O: np.object_  # cannot exists at runtime
+
+array_nd: np.ndarray[Any, Any]
+array_0d: np.ndarray[tuple[()], Any]
+array_2d_2x2: np.ndarray[tuple[Literal[2], Literal[2]], Any]
+
+assert_type(c8.real, np.float32)
+assert_type(c8.imag, np.float32)
+
+assert_type(c8.real.real, np.float32)
+assert_type(c8.real.imag, np.float32)
+
+assert_type(c8.itemsize, int)
+assert_type(c8.shape, tuple[()])
+assert_type(c8.strides, tuple[()])
+
+assert_type(c8.ndim, Literal[0])
+assert_type(c8.size, Literal[1])
+
+assert_type(c8.squeeze(), np.complex64)
+assert_type(c8.byteswap(), np.complex64)
+assert_type(c8.transpose(), np.complex64)
+
+assert_type(c8.dtype, np.dtype[np.complex64])
+
+assert_type(c8.real, np.float32)
+assert_type(c16.imag, np.float64)
+
+assert_type(np.str_("foo"), np.str_)
+
+assert_type(V[0], Any)
+assert_type(V["field1"], Any)
+assert_type(V[["field1", "field2"]], np.void)
+V[0] = 5
+
+# Aliases
+assert_type(np.bool_(), np.bool[Literal[False]])
+assert_type(np.byte(), np.byte)
+assert_type(np.short(), np.short)
+assert_type(np.intc(), np.intc)
+assert_type(np.intp(), np.intp)
+assert_type(np.int_(), np.int_)
+assert_type(np.long(), np.long)
+assert_type(np.longlong(), np.longlong)
+
+assert_type(np.ubyte(), np.ubyte)
+assert_type(np.ushort(), np.ushort)
+assert_type(np.uintc(), np.uintc)
+assert_type(np.uintp(), np.uintp)
+assert_type(np.uint(), np.uint)
+assert_type(np.ulong(), np.ulong)
+assert_type(np.ulonglong(), np.ulonglong)
+
+assert_type(np.half(), np.half)
+assert_type(np.single(), np.single)
+assert_type(np.double(), np.double)
+assert_type(np.longdouble(), np.longdouble)
+
+assert_type(np.csingle(), np.csingle)
+assert_type(np.cdouble(), np.cdouble)
+assert_type(np.clongdouble(), np.clongdouble)
+
+assert_type(b.item(), bool)
+assert_type(i8.item(), int)
+assert_type(u8.item(), int)
+assert_type(f8.item(), float)
+assert_type(c16.item(), complex)
+assert_type(U.item(), str)
+assert_type(S.item(), bytes)
+
+assert_type(b.tolist(), bool)
+assert_type(i8.tolist(), int)
+assert_type(u8.tolist(), int)
+assert_type(f8.tolist(), float)
+assert_type(c16.tolist(), complex)
+assert_type(U.tolist(), str)
+assert_type(S.tolist(), bytes)
+
+assert_type(b.ravel(), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(i8.ravel(), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(u8.ravel(), np.ndarray[tuple[int], np.dtype[np.uint64]])
+assert_type(f8.ravel(), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(c16.ravel(), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(U.ravel(), np.ndarray[tuple[int], np.dtype[np.str_]])
+assert_type(S.ravel(), np.ndarray[tuple[int], np.dtype[np.bytes_]])
+
+assert_type(b.flatten(), np.ndarray[tuple[int], np.dtype[np.bool]])
+assert_type(i8.flatten(), np.ndarray[tuple[int], np.dtype[np.int64]])
+assert_type(u8.flatten(), np.ndarray[tuple[int], np.dtype[np.uint64]])
+assert_type(f8.flatten(), np.ndarray[tuple[int], np.dtype[np.float64]])
+assert_type(c16.flatten(), np.ndarray[tuple[int], np.dtype[np.complex128]])
+assert_type(U.flatten(), np.ndarray[tuple[int], np.dtype[np.str_]])
+assert_type(S.flatten(), np.ndarray[tuple[int], np.dtype[np.bytes_]])
+
+assert_type(b.reshape(()), np.bool)
+assert_type(i8.reshape([]), np.int64)
+assert_type(b.reshape(1), np.ndarray[tuple[_1], np.dtype[np.bool]])
+assert_type(i8.reshape(-1), np.ndarray[tuple[_1], np.dtype[np.int64]])
+assert_type(u8.reshape(1, 1), np.ndarray[tuple[_1, _1], np.dtype[np.uint64]])
+assert_type(f8.reshape(1, -1), np.ndarray[tuple[_1, _1], np.dtype[np.float64]])
+assert_type(c16.reshape(1, 1, 1), np.ndarray[tuple[_1, _1, _1], np.dtype[np.complex128]])
+assert_type(U.reshape(1, 1, 1, 1), np.ndarray[tuple[_1, _1, _1, _1], np.dtype[np.str_]])
+assert_type(
+    S.reshape(1, 1, 1, 1, 1),
+    np.ndarray[
+        # len(shape) >= 5
+        tuple[_1, _1, _1, _1, _1, *tuple[_1, ...]],
+        np.dtype[np.bytes_],
+    ],
+)
+
+assert_type(i8.astype(float), Any)
+assert_type(i8.astype(np.float64), np.float64)
+
+assert_type(i8.view(), np.int64)
+assert_type(i8.view(np.float64), np.float64)
+assert_type(i8.view(float), Any)
+assert_type(i8.view(np.float64, np.ndarray), np.float64)
+
+assert_type(i8.getfield(float), Any)
+assert_type(i8.getfield(np.float64), np.float64)
+assert_type(i8.getfield(np.float64, 8), np.float64)
+
+assert_type(f8.as_integer_ratio(), tuple[int, int])
+assert_type(f8.is_integer(), bool)
+assert_type(f8.__trunc__(), int)
+assert_type(f8.__getformat__("float"), str)
+assert_type(f8.hex(), str)
+assert_type(np.float64.fromhex("0x0.0p+0"), np.float64)
+
+assert_type(f8.__getnewargs__(), tuple[float])
+assert_type(c16.__getnewargs__(), tuple[float, float])
+
+assert_type(i8.numerator, np.int64)
+assert_type(i8.denominator, Literal[1])
+assert_type(u8.numerator, np.uint64)
+assert_type(u8.denominator, Literal[1])
+assert_type(m.numerator, np.timedelta64)
+assert_type(m.denominator, Literal[1])
+
+assert_type(round(i8), int)
+assert_type(round(i8, 3), np.int64)
+assert_type(round(u8), int)
+assert_type(round(u8, 3), np.uint64)
+assert_type(round(f8), int)
+assert_type(round(f8, 3), np.float64)
+
+assert_type(f8.__ceil__(), int)
+assert_type(f8.__floor__(), int)
+
+assert_type(i8.is_integer(), Literal[True])
+
+assert_type(O.real, np.object_)
+assert_type(O.imag, np.object_)
+assert_type(int(O), int)
+assert_type(float(O), float)
+assert_type(complex(O), complex)
+
+# These fail fail because of a mypy __new__ bug:
+# https://github.com/python/mypy/issues/15182
+# According to the typing spec, the following statements are valid, see
+# https://typing.readthedocs.io/en/latest/spec/constructors.html#new-method
+
+# assert_type(np.object_(), None)
+# assert_type(np.object_(None), None)
+# assert_type(np.object_(array_nd), np.ndarray[Any, np.dtype[np.object_]])
+# assert_type(np.object_([]), npt.NDArray[np.object_])
+# assert_type(np.object_(()), npt.NDArray[np.object_])
+# assert_type(np.object_(range(4)), npt.NDArray[np.object_])
+# assert_type(np.object_(+42), int)
+# assert_type(np.object_(1 / 137), float)
+# assert_type(np.object_('Developers! ' * (1 << 6)), str)
+# assert_type(np.object_(object()), object)
+# assert_type(np.object_({False, True, NotADirectoryError}), set[Any])
+# assert_type(np.object_({'spam': 'food', 'ham': 'food'}), dict[str, str])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/shape.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/shape.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..fce3f15d9bdcd3ed3a31cc6630e2248234431bdb
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/shape.pyi
@@ -0,0 +1,13 @@
+from typing import Any, NamedTuple, assert_type
+
+import numpy as np
+
+# Subtype of tuple[int, int]
+class XYGrid(NamedTuple):
+    x_axis: int
+    y_axis: int
+
+arr: np.ndarray[XYGrid, Any]
+
+# Test shape property matches shape typevar
+assert_type(arr.shape, XYGrid)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/shape_base.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/shape_base.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..fc1131c0bf532449d98f61fe4c673e2347afd5e8
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/shape_base.pyi
@@ -0,0 +1,52 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+i8: np.int64
+f8: np.float64
+
+AR_b: npt.NDArray[np.bool]
+AR_i8: npt.NDArray[np.int64]
+AR_f8: npt.NDArray[np.float64]
+
+AR_LIKE_f8: list[float]
+
+assert_type(np.take_along_axis(AR_f8, AR_i8, axis=1), npt.NDArray[np.float64])
+assert_type(np.take_along_axis(f8, AR_i8, axis=None), npt.NDArray[np.float64])
+
+assert_type(np.put_along_axis(AR_f8, AR_i8, "1.0", axis=1), None)
+
+assert_type(np.expand_dims(AR_i8, 2), npt.NDArray[np.int64])
+assert_type(np.expand_dims(AR_LIKE_f8, 2), npt.NDArray[Any])
+
+assert_type(np.column_stack([AR_i8]), npt.NDArray[np.int64])
+assert_type(np.column_stack([AR_LIKE_f8]), npt.NDArray[Any])
+
+assert_type(np.dstack([AR_i8]), npt.NDArray[np.int64])
+assert_type(np.dstack([AR_LIKE_f8]), npt.NDArray[Any])
+
+assert_type(np.array_split(AR_i8, [3, 5, 6, 10]), list[npt.NDArray[np.int64]])
+assert_type(np.array_split(AR_LIKE_f8, [3, 5, 6, 10]), list[npt.NDArray[Any]])
+
+assert_type(np.split(AR_i8, [3, 5, 6, 10]), list[npt.NDArray[np.int64]])
+assert_type(np.split(AR_LIKE_f8, [3, 5, 6, 10]), list[npt.NDArray[Any]])
+
+assert_type(np.hsplit(AR_i8, [3, 5, 6, 10]), list[npt.NDArray[np.int64]])
+assert_type(np.hsplit(AR_LIKE_f8, [3, 5, 6, 10]), list[npt.NDArray[Any]])
+
+assert_type(np.vsplit(AR_i8, [3, 5, 6, 10]), list[npt.NDArray[np.int64]])
+assert_type(np.vsplit(AR_LIKE_f8, [3, 5, 6, 10]), list[npt.NDArray[Any]])
+
+assert_type(np.dsplit(AR_i8, [3, 5, 6, 10]), list[npt.NDArray[np.int64]])
+assert_type(np.dsplit(AR_LIKE_f8, [3, 5, 6, 10]), list[npt.NDArray[Any]])
+
+assert_type(np.kron(AR_b, AR_b), npt.NDArray[np.bool])
+assert_type(np.kron(AR_b, AR_i8), npt.NDArray[np.signedinteger])
+assert_type(np.kron(AR_f8, AR_f8), npt.NDArray[np.floating])
+
+assert_type(np.tile(AR_i8, 5), npt.NDArray[np.int64])
+assert_type(np.tile(AR_LIKE_f8, [2, 2]), npt.NDArray[Any])
+
+assert_type(np.unstack(AR_i8, axis=0), tuple[npt.NDArray[np.int64], ...])
+assert_type(np.unstack(AR_LIKE_f8, axis=0), tuple[npt.NDArray[Any], ...])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/stride_tricks.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/stride_tricks.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..2d18b10d2b1bffef5883b9cde72a4bd084674191
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/stride_tricks.pyi
@@ -0,0 +1,27 @@
+from typing import Any, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_LIKE_f: list[float]
+interface_dict: dict[str, Any]
+
+assert_type(np.lib.stride_tricks.as_strided(AR_f8), npt.NDArray[np.float64])
+assert_type(np.lib.stride_tricks.as_strided(AR_LIKE_f), npt.NDArray[Any])
+assert_type(np.lib.stride_tricks.as_strided(AR_f8, strides=(1, 5)), npt.NDArray[np.float64])
+assert_type(np.lib.stride_tricks.as_strided(AR_f8, shape=[9, 20]), npt.NDArray[np.float64])
+
+assert_type(np.lib.stride_tricks.sliding_window_view(AR_f8, 5), npt.NDArray[np.float64])
+assert_type(np.lib.stride_tricks.sliding_window_view(AR_LIKE_f, (1, 5)), npt.NDArray[Any])
+assert_type(np.lib.stride_tricks.sliding_window_view(AR_f8, [9], axis=1), npt.NDArray[np.float64])
+
+assert_type(np.broadcast_to(AR_f8, 5), npt.NDArray[np.float64])
+assert_type(np.broadcast_to(AR_LIKE_f, (1, 5)), npt.NDArray[Any])
+assert_type(np.broadcast_to(AR_f8, [4, 6], subok=True), npt.NDArray[np.float64])
+
+assert_type(np.broadcast_shapes((1, 2), [3, 1], (3, 2)), tuple[Any, ...])
+assert_type(np.broadcast_shapes((6, 7), (5, 6, 1), 7, (5, 1, 7)), tuple[Any, ...])
+
+assert_type(np.broadcast_arrays(AR_f8, AR_f8), tuple[npt.NDArray[Any], ...])
+assert_type(np.broadcast_arrays(AR_f8, AR_LIKE_f), tuple[npt.NDArray[Any], ...])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/strings.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/strings.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..1cafda2078659bd7240b1327d9e8df4bf8e5915d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/strings.pyi
@@ -0,0 +1,196 @@
+from typing import TypeAlias, assert_type
+
+import numpy as np
+import numpy._typing as np_t
+import numpy.typing as npt
+
+AR_T_alias: TypeAlias = np.ndarray[np_t._AnyShape, np.dtypes.StringDType]
+AR_TU_alias: TypeAlias = AR_T_alias | npt.NDArray[np.str_]
+
+AR_U: npt.NDArray[np.str_]
+AR_S: npt.NDArray[np.bytes_]
+AR_T: AR_T_alias
+
+assert_type(np.strings.equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.not_equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.not_equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.not_equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.greater_equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.greater_equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.greater_equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.less_equal(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.less_equal(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.less_equal(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.greater(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.greater(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.greater(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.less(AR_U, AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.less(AR_S, AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.less(AR_T, AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.add(AR_U, AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.add(AR_S, AR_S), npt.NDArray[np.bytes_])
+assert_type(np.strings.add(AR_T, AR_T), AR_T_alias)
+
+assert_type(np.strings.multiply(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.strings.multiply(AR_S, [5, 4, 3]), npt.NDArray[np.bytes_])
+assert_type(np.strings.multiply(AR_T, 5), AR_T_alias)
+
+assert_type(np.strings.mod(AR_U, "test"), npt.NDArray[np.str_])
+assert_type(np.strings.mod(AR_S, "test"), npt.NDArray[np.bytes_])
+assert_type(np.strings.mod(AR_T, "test"), AR_T_alias)
+
+assert_type(np.strings.capitalize(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.capitalize(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.strings.capitalize(AR_T), AR_T_alias)
+
+assert_type(np.strings.center(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.strings.center(AR_S, [2, 3, 4], b"a"), npt.NDArray[np.bytes_])
+assert_type(np.strings.center(AR_T, 5), AR_T_alias)
+
+assert_type(np.strings.encode(AR_U), npt.NDArray[np.bytes_])
+assert_type(np.strings.encode(AR_T), npt.NDArray[np.bytes_])
+assert_type(np.strings.decode(AR_S), npt.NDArray[np.str_])
+
+assert_type(np.strings.expandtabs(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.expandtabs(AR_S, tabsize=4), npt.NDArray[np.bytes_])
+assert_type(np.strings.expandtabs(AR_T), AR_T_alias)
+
+assert_type(np.strings.ljust(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.strings.ljust(AR_S, [4, 3, 1], fillchar=[b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.strings.ljust(AR_T, 5), AR_T_alias)
+assert_type(np.strings.ljust(AR_T, [4, 2, 1], fillchar=["a", "b", "c"]), AR_T_alias)
+
+assert_type(np.strings.rjust(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.strings.rjust(AR_S, [4, 3, 1], fillchar=[b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.strings.rjust(AR_T, 5), AR_T_alias)
+assert_type(np.strings.rjust(AR_T, [4, 2, 1], fillchar=["a", "b", "c"]), AR_T_alias)
+
+assert_type(np.strings.lstrip(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.lstrip(AR_S, b"_"), npt.NDArray[np.bytes_])
+assert_type(np.strings.lstrip(AR_T), AR_T_alias)
+assert_type(np.strings.lstrip(AR_T, "_"), AR_T_alias)
+
+assert_type(np.strings.rstrip(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.rstrip(AR_S, b"_"), npt.NDArray[np.bytes_])
+assert_type(np.strings.rstrip(AR_T), AR_T_alias)
+assert_type(np.strings.rstrip(AR_T, "_"), AR_T_alias)
+
+assert_type(np.strings.strip(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.strip(AR_S, b"_"), npt.NDArray[np.bytes_])
+assert_type(np.strings.strip(AR_T), AR_T_alias)
+assert_type(np.strings.strip(AR_T, "_"), AR_T_alias)
+
+assert_type(np.strings.count(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.strings.count(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.strings.count(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.strings.count(AR_T, ["a", "b", "c"], end=9), npt.NDArray[np.int_])
+
+assert_type(np.strings.partition(AR_U, "\n"), npt.NDArray[np.str_])
+assert_type(np.strings.partition(AR_S, [b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.strings.partition(AR_T, "\n"), AR_TU_alias)
+
+assert_type(np.strings.rpartition(AR_U, "\n"), npt.NDArray[np.str_])
+assert_type(np.strings.rpartition(AR_S, [b"a", b"b", b"c"]), npt.NDArray[np.bytes_])
+assert_type(np.strings.rpartition(AR_T, "\n"), AR_TU_alias)
+
+assert_type(np.strings.replace(AR_U, "_", "-"), npt.NDArray[np.str_])
+assert_type(np.strings.replace(AR_S, [b"_", b""], [b"a", b"b"]), npt.NDArray[np.bytes_])
+assert_type(np.strings.replace(AR_T, "_", "_"), AR_TU_alias)
+
+assert_type(np.strings.lower(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.lower(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.strings.lower(AR_T), AR_T_alias)
+
+assert_type(np.strings.upper(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.upper(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.strings.upper(AR_T), AR_T_alias)
+
+assert_type(np.strings.swapcase(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.swapcase(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.strings.swapcase(AR_T), AR_T_alias)
+
+assert_type(np.strings.title(AR_U), npt.NDArray[np.str_])
+assert_type(np.strings.title(AR_S), npt.NDArray[np.bytes_])
+assert_type(np.strings.title(AR_T), AR_T_alias)
+
+assert_type(np.strings.zfill(AR_U, 5), npt.NDArray[np.str_])
+assert_type(np.strings.zfill(AR_S, [2, 3, 4]), npt.NDArray[np.bytes_])
+assert_type(np.strings.zfill(AR_T, 5), AR_T_alias)
+
+assert_type(np.strings.endswith(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+assert_type(np.strings.endswith(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.bool])
+assert_type(np.strings.endswith(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+
+assert_type(np.strings.startswith(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+assert_type(np.strings.startswith(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.bool])
+assert_type(np.strings.startswith(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.bool])
+
+assert_type(np.strings.find(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.strings.find(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.strings.find(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.strings.rfind(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.strings.rfind(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.strings.rfind(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.strings.index(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.strings.index(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.strings.index(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.strings.rindex(AR_U, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+assert_type(np.strings.rindex(AR_S, [b"a", b"b", b"c"], end=9), npt.NDArray[np.int_])
+assert_type(np.strings.rindex(AR_T, "a", start=[1, 2, 3]), npt.NDArray[np.int_])
+
+assert_type(np.strings.isalpha(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isalpha(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.isalpha(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.isalnum(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isalnum(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.isalnum(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.isdecimal(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isdecimal(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.isdigit(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isdigit(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.isdigit(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.islower(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.islower(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.islower(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.isnumeric(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isnumeric(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.isspace(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isspace(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.isspace(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.istitle(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.istitle(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.istitle(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.isupper(AR_U), npt.NDArray[np.bool])
+assert_type(np.strings.isupper(AR_S), npt.NDArray[np.bool])
+assert_type(np.strings.isupper(AR_T), npt.NDArray[np.bool])
+
+assert_type(np.strings.str_len(AR_U), npt.NDArray[np.int_])
+assert_type(np.strings.str_len(AR_S), npt.NDArray[np.int_])
+assert_type(np.strings.str_len(AR_T), npt.NDArray[np.int_])
+
+assert_type(np.strings.translate(AR_U, ""), npt.NDArray[np.str_])
+assert_type(np.strings.translate(AR_S, ""), npt.NDArray[np.bytes_])
+assert_type(np.strings.translate(AR_T, ""), AR_T_alias)
+
+assert_type(np.strings.slice(AR_U, 1, 5, 2), npt.NDArray[np.str_])
+assert_type(np.strings.slice(AR_S, 1, 5, 2), npt.NDArray[np.bytes_])
+assert_type(np.strings.slice(AR_T, 1, 5, 2), AR_T_alias)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/testing.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/testing.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..cf8d503c774f013a1d3a1937360cf0767c205fdd
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/testing.pyi
@@ -0,0 +1,198 @@
+import contextlib
+import re
+import sys
+import types
+import unittest
+import warnings
+from collections.abc import Callable
+from pathlib import Path
+from typing import Any, TypeVar, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_f8: npt.NDArray[np.float64]
+AR_i8: npt.NDArray[np.int64]
+
+bool_obj: bool
+suppress_obj: np.testing.suppress_warnings  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+FT = TypeVar("FT", bound=Callable[..., Any])
+
+def func() -> int: ...
+
+def func2(
+    x: npt.NDArray[np.number],
+    y: npt.NDArray[np.number],
+) -> npt.NDArray[np.bool]: ...
+
+assert_type(np.testing.KnownFailureException(), np.testing.KnownFailureException)
+assert_type(np.testing.IgnoreException(), np.testing.IgnoreException)
+
+assert_type(
+    np.testing.clear_and_catch_warnings(modules=[np.testing]),
+    np.testing.clear_and_catch_warnings[None],
+)
+assert_type(
+    np.testing.clear_and_catch_warnings(True),
+    np.testing.clear_and_catch_warnings[list[warnings.WarningMessage]],
+)
+assert_type(
+    np.testing.clear_and_catch_warnings(False),
+    np.testing.clear_and_catch_warnings[None],
+)
+assert_type(
+    np.testing.clear_and_catch_warnings(bool_obj),
+    np.testing.clear_and_catch_warnings,
+)
+assert_type(
+    np.testing.clear_and_catch_warnings.class_modules,
+    tuple[types.ModuleType, ...],
+)
+assert_type(
+    np.testing.clear_and_catch_warnings.modules,
+    set[types.ModuleType],
+)
+
+with np.testing.clear_and_catch_warnings(True) as c1:
+    assert_type(c1, list[warnings.WarningMessage])
+with np.testing.clear_and_catch_warnings() as c2:
+    assert_type(c2, None)
+
+assert_type(np.testing.suppress_warnings("once"), np.testing.suppress_warnings)  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+assert_type(np.testing.suppress_warnings()(func), Callable[[], int])  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+assert_type(suppress_obj.filter(RuntimeWarning), None)
+assert_type(suppress_obj.record(RuntimeWarning), list[warnings.WarningMessage])
+with suppress_obj as c3:
+    assert_type(c3, np.testing.suppress_warnings)  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+
+assert_type(np.testing.verbose, int)
+assert_type(np.testing.IS_PYPY, bool)
+assert_type(np.testing.HAS_REFCOUNT, bool)
+assert_type(np.testing.HAS_LAPACK64, bool)
+
+assert_type(np.testing.assert_(1, msg="test"), None)
+assert_type(np.testing.assert_(2, msg=lambda: "test"), None)
+
+if sys.platform == "win32" or sys.platform == "cygwin":
+    assert_type(np.testing.memusage(), int)
+elif sys.platform == "linux":
+    assert_type(np.testing.memusage(), int | None)
+
+assert_type(np.testing.jiffies(), int)
+
+assert_type(np.testing.build_err_msg([0, 1, 2], "test"), str)
+assert_type(np.testing.build_err_msg(range(2), "test", header="header"), str)
+assert_type(np.testing.build_err_msg(np.arange(9).reshape(3, 3), "test", verbose=False), str)
+assert_type(np.testing.build_err_msg("abc", "test", names=["x", "y"]), str)
+assert_type(np.testing.build_err_msg([1.0, 2.0], "test", precision=5), str)
+
+assert_type(np.testing.assert_equal({1}, {1}), None)
+assert_type(np.testing.assert_equal([1, 2, 3], [1, 2, 3], err_msg="fail"), None)
+assert_type(np.testing.assert_equal(1, 1.0, verbose=True), None)
+
+assert_type(np.testing.print_assert_equal("Test XYZ of func xyz", [0, 1], [0, 1]), None)
+
+assert_type(np.testing.assert_almost_equal(1.0, 1.1), None)
+assert_type(np.testing.assert_almost_equal([1, 2, 3], [1, 2, 3], err_msg="fail"), None)
+assert_type(np.testing.assert_almost_equal(1, 1.0, verbose=True), None)
+assert_type(np.testing.assert_almost_equal(1, 1.0001, decimal=2), None)
+
+assert_type(np.testing.assert_approx_equal(1.0, 1.1), None)
+assert_type(np.testing.assert_approx_equal("1", "2", err_msg="fail"), None)
+assert_type(np.testing.assert_approx_equal(1, 1.0, verbose=True), None)
+assert_type(np.testing.assert_approx_equal(1, 1.0001, significant=2), None)
+
+assert_type(np.testing.assert_array_compare(func2, AR_i8, AR_f8, err_msg="test"), None)
+assert_type(np.testing.assert_array_compare(func2, AR_i8, AR_f8, verbose=True), None)
+assert_type(np.testing.assert_array_compare(func2, AR_i8, AR_f8, header="header"), None)
+assert_type(np.testing.assert_array_compare(func2, AR_i8, AR_f8, precision=np.int64()), None)
+assert_type(np.testing.assert_array_compare(func2, AR_i8, AR_f8, equal_nan=False), None)
+assert_type(np.testing.assert_array_compare(func2, AR_i8, AR_f8, equal_inf=True), None)
+
+assert_type(np.testing.assert_array_equal(AR_i8, AR_f8), None)
+assert_type(np.testing.assert_array_equal(AR_i8, AR_f8, err_msg="test"), None)
+assert_type(np.testing.assert_array_equal(AR_i8, AR_f8, verbose=True), None)
+
+assert_type(np.testing.assert_array_almost_equal(AR_i8, AR_f8), None)
+assert_type(np.testing.assert_array_almost_equal(AR_i8, AR_f8, err_msg="test"), None)
+assert_type(np.testing.assert_array_almost_equal(AR_i8, AR_f8, verbose=True), None)
+assert_type(np.testing.assert_array_almost_equal(AR_i8, AR_f8, decimal=1), None)
+
+assert_type(np.testing.assert_array_less(AR_i8, AR_f8), None)
+assert_type(np.testing.assert_array_less(AR_i8, AR_f8, err_msg="test"), None)
+assert_type(np.testing.assert_array_less(AR_i8, AR_f8, verbose=True), None)
+
+assert_type(np.testing.runstring("1 + 1", {}), Any)
+assert_type(np.testing.runstring("int64() + 1", {"int64": np.int64}), Any)
+
+assert_type(np.testing.assert_string_equal("1", "1"), None)
+
+assert_type(np.testing.rundocs(), None)
+assert_type(np.testing.rundocs("test.py"), None)
+assert_type(np.testing.rundocs(Path("test.py"), raise_on_error=True), None)
+
+def func3(a: int) -> bool: ...
+
+assert_type(
+    np.testing.assert_raises(RuntimeWarning),
+    unittest.case._AssertRaisesContext[RuntimeWarning],
+)
+assert_type(np.testing.assert_raises(RuntimeWarning, func3, 5), None)
+
+assert_type(
+    np.testing.assert_raises_regex(RuntimeWarning, r"test"),
+    unittest.case._AssertRaisesContext[RuntimeWarning],
+)
+assert_type(np.testing.assert_raises_regex(RuntimeWarning, b"test", func3, 5), None)
+assert_type(np.testing.assert_raises_regex(RuntimeWarning, re.compile(b"test"), func3, 5), None)
+
+class Test: ...
+
+def decorate(a: FT) -> FT:
+    return a
+
+assert_type(np.testing.decorate_methods(Test, decorate), None)
+assert_type(np.testing.decorate_methods(Test, decorate, None), None)
+assert_type(np.testing.decorate_methods(Test, decorate, "test"), None)
+assert_type(np.testing.decorate_methods(Test, decorate, b"test"), None)
+assert_type(np.testing.decorate_methods(Test, decorate, re.compile("test")), None)
+
+assert_type(np.testing.measure("for i in range(1000): np.sqrt(i**2)"), float)
+assert_type(np.testing.measure(b"for i in range(1000): np.sqrt(i**2)", times=5), float)
+
+assert_type(np.testing.assert_allclose(AR_i8, AR_f8), None)
+assert_type(np.testing.assert_allclose(AR_i8, AR_f8, rtol=0.005), None)
+assert_type(np.testing.assert_allclose(AR_i8, AR_f8, atol=1), None)
+assert_type(np.testing.assert_allclose(AR_i8, AR_f8, equal_nan=True), None)
+assert_type(np.testing.assert_allclose(AR_i8, AR_f8, err_msg="err"), None)
+assert_type(np.testing.assert_allclose(AR_i8, AR_f8, verbose=False), None)
+
+assert_type(np.testing.assert_array_almost_equal_nulp(AR_i8, AR_f8, nulp=2), None)
+
+assert_type(np.testing.assert_array_max_ulp(AR_i8, AR_f8, maxulp=2), npt.NDArray[Any])
+assert_type(np.testing.assert_array_max_ulp(AR_i8, AR_f8, dtype=np.float32), npt.NDArray[Any])
+
+assert_type(np.testing.assert_warns(RuntimeWarning), contextlib._GeneratorContextManager[None])  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+assert_type(np.testing.assert_warns(RuntimeWarning, func3, 5), bool)  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+
+def func4(a: int, b: str) -> bool: ...
+
+assert_type(np.testing.assert_no_warnings(), contextlib._GeneratorContextManager[None])
+assert_type(np.testing.assert_no_warnings(func3, 5), bool)
+assert_type(np.testing.assert_no_warnings(func4, a=1, b="test"), bool)
+assert_type(np.testing.assert_no_warnings(func4, 1, "test"), bool)
+
+assert_type(np.testing.tempdir("test_dir"), contextlib._GeneratorContextManager[str])
+assert_type(np.testing.tempdir(prefix=b"test"), contextlib._GeneratorContextManager[bytes])
+assert_type(np.testing.tempdir("test_dir", dir=Path("here")), contextlib._GeneratorContextManager[str])
+
+assert_type(np.testing.temppath("test_dir", text=True), contextlib._GeneratorContextManager[str])
+assert_type(np.testing.temppath(prefix=b"test"), contextlib._GeneratorContextManager[bytes])
+assert_type(np.testing.temppath("test_dir", dir=Path("here")), contextlib._GeneratorContextManager[str])
+
+assert_type(np.testing.assert_no_gc_cycles(), contextlib._GeneratorContextManager[None])
+assert_type(np.testing.assert_no_gc_cycles(func3, 5), None)
+
+assert_type(np.testing.break_cycles(), None)
+
+assert_type(np.testing.TestCase(), unittest.case.TestCase)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/twodim_base.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/twodim_base.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..5f5627d42e2cd6d5c77f4d943f9e665d10d9c5c6
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/twodim_base.pyi
@@ -0,0 +1,225 @@
+from typing import Any, TypeAlias, TypeVar, assert_type, type_check_only
+
+import numpy as np
+import numpy.typing as npt
+
+_ScalarT = TypeVar("_ScalarT", bound=np.generic)
+
+_1D: TypeAlias = tuple[int]
+_2D: TypeAlias = tuple[int, int]
+_ND: TypeAlias = tuple[Any, ...]
+
+_Indices2D: TypeAlias = tuple[
+    np.ndarray[_1D, np.dtype[np.intp]],
+    np.ndarray[_1D, np.dtype[np.intp]],
+]
+
+###
+
+_nd_bool: np.ndarray[_ND, np.dtype[np.bool]]
+_1d_bool: np.ndarray[_1D, np.dtype[np.bool]]
+_2d_bool: np.ndarray[_2D, np.dtype[np.bool]]
+_nd_u64: np.ndarray[_ND, np.dtype[np.uint64]]
+_nd_i64: np.ndarray[_ND, np.dtype[np.int64]]
+_nd_f64: np.ndarray[_ND, np.dtype[np.float64]]
+_nd_c128: np.ndarray[_ND, np.dtype[np.complex128]]
+_nd_obj: np.ndarray[_ND, np.dtype[np.object_]]
+
+_to_nd_bool: list[bool] | list[list[bool]]
+_to_1d_bool: list[bool]
+_to_2d_bool: list[list[bool]]
+
+_to_1d_f64: list[float]
+_to_1d_c128: list[complex]
+
+@type_check_only
+def func1(ar: npt.NDArray[_ScalarT], a: int) -> npt.NDArray[_ScalarT]: ...
+@type_check_only
+def func2(ar: npt.NDArray[np.number], a: str) -> npt.NDArray[np.float64]: ...
+
+@type_check_only
+class _Cube:
+    shape = 3, 4
+    ndim = 2
+
+###
+
+# fliplr
+assert_type(np.fliplr(_nd_bool), np.ndarray[_ND, np.dtype[np.bool]])
+assert_type(np.fliplr(_1d_bool), np.ndarray[_1D, np.dtype[np.bool]])
+assert_type(np.fliplr(_2d_bool), np.ndarray[_2D, np.dtype[np.bool]])
+assert_type(np.fliplr(_to_nd_bool), np.ndarray)
+assert_type(np.fliplr(_to_1d_bool), np.ndarray)
+assert_type(np.fliplr(_to_2d_bool), np.ndarray)
+
+# flipud
+assert_type(np.flipud(_nd_bool), np.ndarray[_ND, np.dtype[np.bool]])
+assert_type(np.flipud(_1d_bool), np.ndarray[_1D, np.dtype[np.bool]])
+assert_type(np.flipud(_2d_bool), np.ndarray[_2D, np.dtype[np.bool]])
+assert_type(np.flipud(_to_nd_bool), np.ndarray)
+assert_type(np.flipud(_to_1d_bool), np.ndarray)
+assert_type(np.flipud(_to_2d_bool), np.ndarray)
+
+# eye
+assert_type(np.eye(10), np.ndarray[_2D, np.dtype[np.float64]])
+assert_type(np.eye(10, M=20, dtype=np.int64), np.ndarray[_2D, np.dtype[np.int64]])
+assert_type(np.eye(10, k=2, dtype=int), np.ndarray[_2D])
+
+# diag
+assert_type(np.diag(_nd_bool), np.ndarray[_ND, np.dtype[np.bool]])
+assert_type(np.diag(_1d_bool), np.ndarray[_2D, np.dtype[np.bool]])
+assert_type(np.diag(_2d_bool), np.ndarray[_1D, np.dtype[np.bool]])
+assert_type(np.diag(_to_nd_bool, k=0), np.ndarray)
+assert_type(np.diag(_to_1d_bool, k=0), np.ndarray[_2D])
+assert_type(np.diag(_to_2d_bool, k=0), np.ndarray[_1D])
+
+# diagflat
+assert_type(np.diagflat(_nd_bool), np.ndarray[_2D, np.dtype[np.bool]])
+assert_type(np.diagflat(_1d_bool), np.ndarray[_2D, np.dtype[np.bool]])
+assert_type(np.diagflat(_2d_bool), np.ndarray[_2D, np.dtype[np.bool]])
+assert_type(np.diagflat(_to_nd_bool, k=0), np.ndarray[_2D])
+assert_type(np.diagflat(_to_1d_bool, k=0), np.ndarray[_2D])
+assert_type(np.diagflat(_to_2d_bool, k=0), np.ndarray[_2D])
+
+# tri
+assert_type(np.tri(10), np.ndarray[_2D, np.dtype[np.float64]])
+assert_type(np.tri(10, M=20, dtype=np.int64), np.ndarray[_2D, np.dtype[np.int64]])
+assert_type(np.tri(10, k=2, dtype=int), np.ndarray[_2D])
+
+# tril
+assert_type(np.tril(_nd_bool), np.ndarray[_ND, np.dtype[np.bool]])
+assert_type(np.tril(_to_nd_bool, k=0), np.ndarray)
+assert_type(np.tril(_to_1d_bool, k=0), np.ndarray)
+assert_type(np.tril(_to_2d_bool, k=0), np.ndarray)
+
+# triu
+assert_type(np.triu(_nd_bool), np.ndarray[_ND, np.dtype[np.bool]])
+assert_type(np.triu(_to_nd_bool, k=0), np.ndarray)
+assert_type(np.triu(_to_1d_bool, k=0), np.ndarray)
+assert_type(np.triu(_to_2d_bool, k=0), np.ndarray)
+
+# vander
+assert_type(np.vander(_nd_bool), np.ndarray[_2D, np.dtype[np.int_]])
+assert_type(np.vander(_nd_u64), np.ndarray[_2D, np.dtype[np.uint64]])
+assert_type(np.vander(_nd_i64, N=2), np.ndarray[_2D, np.dtype[np.int64]])
+assert_type(np.vander(_nd_f64, increasing=True), np.ndarray[_2D, np.dtype[np.float64]])
+assert_type(np.vander(_nd_c128), np.ndarray[_2D, np.dtype[np.complex128]])
+assert_type(np.vander(_nd_obj), np.ndarray[_2D, np.dtype[np.object_]])
+
+# histogram2d
+assert_type(
+    np.histogram2d(_to_1d_f64, _to_1d_f64),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.histogram2d(_to_1d_c128, _to_1d_c128),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.complex128 | Any]],
+        np.ndarray[_1D, np.dtype[np.complex128 | Any]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_i64, _nd_bool),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_f64, _nd_i64),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_i64, _nd_f64),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.float64]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_f64, _nd_c128, weights=_to_1d_bool),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.complex128]],
+        np.ndarray[_1D, np.dtype[np.complex128]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_f64, _nd_c128, bins=8),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.complex128]],
+        np.ndarray[_1D, np.dtype[np.complex128]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_c128, _nd_f64, bins=(8, 5)),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.complex128]],
+        np.ndarray[_1D, np.dtype[np.complex128]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_c128, _nd_i64, bins=_nd_u64),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.uint64]],
+        np.ndarray[_1D, np.dtype[np.uint64]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_c128, _nd_c128, bins=(_nd_u64, _nd_u64)),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.uint64]],
+        np.ndarray[_1D, np.dtype[np.uint64]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_c128, _nd_c128, bins=(_nd_bool, 8)),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.complex128 | np.bool]],
+        np.ndarray[_1D, np.dtype[np.complex128 | np.bool]],
+    ],
+)
+assert_type(
+    np.histogram2d(_nd_c128, _nd_c128, bins=(_to_1d_f64, 8)),
+    tuple[
+        np.ndarray[_2D, np.dtype[np.float64]],
+        np.ndarray[_1D, np.dtype[np.complex128 | Any]],
+        np.ndarray[_1D, np.dtype[np.complex128 | Any]],
+    ],
+)
+
+# mask_indices
+assert_type(np.mask_indices(10, func1), _Indices2D)
+assert_type(np.mask_indices(8, func2, "0"), _Indices2D)
+
+# tril_indices
+assert_type(np.tril_indices(3), _Indices2D)
+assert_type(np.tril_indices(3, 1), _Indices2D)
+assert_type(np.tril_indices(3, 1, 2), _Indices2D)
+# tril_indices
+assert_type(np.triu_indices(3), _Indices2D)
+assert_type(np.triu_indices(3, 1), _Indices2D)
+assert_type(np.triu_indices(3, 1, 2), _Indices2D)
+
+# tril_indices_from
+assert_type(np.tril_indices_from(_2d_bool), _Indices2D)
+assert_type(np.tril_indices_from(_Cube()), _Indices2D)
+# triu_indices_from
+assert_type(np.triu_indices_from(_2d_bool), _Indices2D)
+assert_type(np.triu_indices_from(_Cube()), _Indices2D)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/type_check.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/type_check.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..ee40bd178c64f5d43af6e7570949a6088138dbd9
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/type_check.pyi
@@ -0,0 +1,67 @@
+from typing import Any, Literal, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+f8: np.float64
+f: float
+
+# NOTE: Avoid importing the platform specific `np.float128` type
+AR_i8: npt.NDArray[np.int64]
+AR_i4: npt.NDArray[np.int32]
+AR_f2: npt.NDArray[np.float16]
+AR_f8: npt.NDArray[np.float64]
+AR_f16: npt.NDArray[np.longdouble]
+AR_c8: npt.NDArray[np.complex64]
+AR_c16: npt.NDArray[np.complex128]
+
+AR_LIKE_f: list[float]
+
+class ComplexObj:
+    real: slice
+    imag: slice
+
+assert_type(np.mintypecode(["f8"], typeset="qfQF"), str)
+
+assert_type(np.real(ComplexObj()), slice)
+assert_type(np.real(AR_f8), npt.NDArray[np.float64])
+assert_type(np.real(AR_c16), npt.NDArray[np.float64])
+assert_type(np.real(AR_LIKE_f), npt.NDArray[Any])
+
+assert_type(np.imag(ComplexObj()), slice)
+assert_type(np.imag(AR_f8), npt.NDArray[np.float64])
+assert_type(np.imag(AR_c16), npt.NDArray[np.float64])
+assert_type(np.imag(AR_LIKE_f), npt.NDArray[Any])
+
+assert_type(np.iscomplex(f8), np.bool)
+assert_type(np.iscomplex(AR_f8), npt.NDArray[np.bool])
+assert_type(np.iscomplex(AR_LIKE_f), npt.NDArray[np.bool])
+
+assert_type(np.isreal(f8), np.bool)
+assert_type(np.isreal(AR_f8), npt.NDArray[np.bool])
+assert_type(np.isreal(AR_LIKE_f), npt.NDArray[np.bool])
+
+assert_type(np.iscomplexobj(f8), bool)
+assert_type(np.isrealobj(f8), bool)
+
+assert_type(np.nan_to_num(f8), np.float64)
+assert_type(np.nan_to_num(f, copy=True), Any)
+assert_type(np.nan_to_num(AR_f8, nan=1.5), npt.NDArray[np.float64])
+assert_type(np.nan_to_num(AR_LIKE_f, posinf=9999), npt.NDArray[Any])
+
+assert_type(np.real_if_close(AR_f8), npt.NDArray[np.float64])
+assert_type(np.real_if_close(AR_c16), npt.NDArray[np.float64 | np.complex128])
+assert_type(np.real_if_close(AR_c8), npt.NDArray[np.float32 | np.complex64])
+assert_type(np.real_if_close(AR_LIKE_f), npt.NDArray[Any])
+
+assert_type(np.typename("h"), Literal["short"])
+assert_type(np.typename("B"), Literal["unsigned char"])
+assert_type(np.typename("V"), Literal["void"])
+assert_type(np.typename("S1"), Literal["character"])
+
+assert_type(np.common_type(AR_i4), type[np.float64])
+assert_type(np.common_type(AR_f2), type[np.float16])
+assert_type(np.common_type(AR_f2, AR_i4), type[np.float64])
+assert_type(np.common_type(AR_f16, AR_i4), type[np.longdouble])
+assert_type(np.common_type(AR_c8, AR_f2), type[np.complex64])
+assert_type(np.common_type(AR_f2, AR_c8, AR_i4), type[np.complexfloating])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufunc_config.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufunc_config.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..f6f19f379f9c6898fed7203fb38f12e9f8fce44d
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufunc_config.pyi
@@ -0,0 +1,29 @@
+"""Typing tests for `_core._ufunc_config`."""
+
+from _typeshed import SupportsWrite
+from collections.abc import Callable
+from typing import Any, assert_type
+
+import numpy as np
+
+def func(a: str, b: int) -> None: ...
+
+class Write:
+    def write(self, value: str) -> None: ...
+
+assert_type(np.seterr(all=None), np._core._ufunc_config._ErrDict)
+assert_type(np.seterr(divide="ignore"), np._core._ufunc_config._ErrDict)
+assert_type(np.seterr(over="warn"), np._core._ufunc_config._ErrDict)
+assert_type(np.seterr(under="call"), np._core._ufunc_config._ErrDict)
+assert_type(np.seterr(invalid="raise"), np._core._ufunc_config._ErrDict)
+assert_type(np.geterr(), np._core._ufunc_config._ErrDict)
+
+assert_type(np.setbufsize(4096), int)
+assert_type(np.getbufsize(), int)
+
+assert_type(np.seterrcall(func), Callable[[str, int], Any] | SupportsWrite[str] | None)
+assert_type(np.seterrcall(Write()), Callable[[str, int], Any] | SupportsWrite[str] | None)
+assert_type(np.geterrcall(), Callable[[str, int], Any] | SupportsWrite[str] | None)
+
+assert_type(np.errstate(call=func, all="call"), np.errstate)
+assert_type(np.errstate(call=Write(), divide="log", over="log"), np.errstate)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufunclike.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufunclike.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..35e11385c859f2d84ee906dbbfe3993b07305545
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufunclike.pyi
@@ -0,0 +1,31 @@
+from typing import assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+AR_LIKE_b: list[bool]
+AR_LIKE_u: list[np.uint32]
+AR_LIKE_i: list[int]
+AR_LIKE_f: list[float]
+AR_LIKE_O: list[np.object_]
+
+AR_U: npt.NDArray[np.str_]
+
+assert_type(np.fix(AR_LIKE_b), npt.NDArray[np.floating])  # type: ignore[deprecated]
+assert_type(np.fix(AR_LIKE_u), npt.NDArray[np.floating])  # type: ignore[deprecated]
+assert_type(np.fix(AR_LIKE_i), npt.NDArray[np.floating])  # type: ignore[deprecated]
+assert_type(np.fix(AR_LIKE_f), npt.NDArray[np.floating])  # type: ignore[deprecated]
+assert_type(np.fix(AR_LIKE_O), npt.NDArray[np.object_])  # type: ignore[deprecated]
+assert_type(np.fix(AR_LIKE_f, out=AR_U), npt.NDArray[np.str_])  # type: ignore[deprecated]
+
+assert_type(np.isposinf(AR_LIKE_b), npt.NDArray[np.bool])
+assert_type(np.isposinf(AR_LIKE_u), npt.NDArray[np.bool])
+assert_type(np.isposinf(AR_LIKE_i), npt.NDArray[np.bool])
+assert_type(np.isposinf(AR_LIKE_f), npt.NDArray[np.bool])
+assert_type(np.isposinf(AR_LIKE_f, out=AR_U), npt.NDArray[np.str_])
+
+assert_type(np.isneginf(AR_LIKE_b), npt.NDArray[np.bool])
+assert_type(np.isneginf(AR_LIKE_u), npt.NDArray[np.bool])
+assert_type(np.isneginf(AR_LIKE_i), npt.NDArray[np.bool])
+assert_type(np.isneginf(AR_LIKE_f), npt.NDArray[np.bool])
+assert_type(np.isneginf(AR_LIKE_f, out=AR_U), npt.NDArray[np.str_])
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufuncs.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufuncs.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..f2a15d56f4d5661a76fdf6bf67db2658374fa511
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/ufuncs.pyi
@@ -0,0 +1,142 @@
+from typing import Any, Literal, NoReturn, assert_type
+
+import numpy as np
+import numpy.typing as npt
+
+i8: np.int64
+f8: np.float64
+AR_f8: npt.NDArray[np.float64]
+AR_i8: npt.NDArray[np.int64]
+
+assert_type(np.absolute.__doc__, str)
+assert_type(np.absolute.types, list[str])
+
+assert_type(np.absolute.__name__, Literal["absolute"])
+assert_type(np.absolute.__qualname__, Literal["absolute"])
+assert_type(np.absolute.ntypes, Literal[20])
+assert_type(np.absolute.identity, None)
+assert_type(np.absolute.nin, Literal[1])
+assert_type(np.absolute.nin, Literal[1])
+assert_type(np.absolute.nout, Literal[1])
+assert_type(np.absolute.nargs, Literal[2])
+assert_type(np.absolute.signature, None)
+assert_type(np.absolute(f8), Any)
+assert_type(np.absolute(AR_f8), npt.NDArray[Any])
+assert_type(np.absolute.at(AR_f8, AR_i8), None)
+
+assert_type(np.add.__name__, Literal["add"])
+assert_type(np.add.__qualname__, Literal["add"])
+assert_type(np.add.ntypes, Literal[22])
+assert_type(np.add.identity, Literal[0])
+assert_type(np.add.nin, Literal[2])
+assert_type(np.add.nout, Literal[1])
+assert_type(np.add.nargs, Literal[3])
+assert_type(np.add.signature, None)
+assert_type(np.add(f8, f8), Any)
+assert_type(np.add(AR_f8, f8), npt.NDArray[Any])
+assert_type(np.add.at(AR_f8, AR_i8, f8), None)
+assert_type(np.add.reduce(AR_f8, axis=0), Any)
+assert_type(np.add.accumulate(AR_f8), npt.NDArray[Any])
+assert_type(np.add.reduceat(AR_f8, AR_i8), npt.NDArray[Any])
+assert_type(np.add.outer(f8, f8), Any)
+assert_type(np.add.outer(AR_f8, f8), npt.NDArray[Any])
+
+assert_type(np.frexp.__name__, Literal["frexp"])
+assert_type(np.frexp.__qualname__, Literal["frexp"])
+assert_type(np.frexp.ntypes, Literal[4])
+assert_type(np.frexp.identity, None)
+assert_type(np.frexp.nin, Literal[1])
+assert_type(np.frexp.nout, Literal[2])
+assert_type(np.frexp.nargs, Literal[3])
+assert_type(np.frexp.signature, None)
+assert_type(np.frexp(f8), tuple[Any, Any])
+assert_type(np.frexp(AR_f8), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+
+assert_type(np.divmod.__name__, Literal["divmod"])
+assert_type(np.divmod.__qualname__, Literal["divmod"])
+assert_type(np.divmod.ntypes, Literal[15])
+assert_type(np.divmod.identity, None)
+assert_type(np.divmod.nin, Literal[2])
+assert_type(np.divmod.nout, Literal[2])
+assert_type(np.divmod.nargs, Literal[4])
+assert_type(np.divmod.signature, None)
+assert_type(np.divmod(f8, f8), tuple[Any, Any])
+assert_type(np.divmod(AR_f8, f8), tuple[npt.NDArray[Any], npt.NDArray[Any]])
+
+assert_type(np.matmul.__name__, Literal["matmul"])
+assert_type(np.matmul.__qualname__, Literal["matmul"])
+assert_type(np.matmul.ntypes, Literal[19])
+assert_type(np.matmul.identity, None)
+assert_type(np.matmul.nin, Literal[2])
+assert_type(np.matmul.nout, Literal[1])
+assert_type(np.matmul.nargs, Literal[3])
+assert_type(np.matmul.signature, Literal["(n?,k),(k,m?)->(n?,m?)"])
+assert_type(np.matmul.identity, None)
+assert_type(np.matmul(AR_f8, AR_f8), Any)
+assert_type(np.matmul(AR_f8, AR_f8, axes=[(0, 1), (0, 1), (0, 1)]), Any)
+
+assert_type(np.vecdot.__name__, Literal["vecdot"])
+assert_type(np.vecdot.__qualname__, Literal["vecdot"])
+assert_type(np.vecdot.ntypes, Literal[19])
+assert_type(np.vecdot.identity, None)
+assert_type(np.vecdot.nin, Literal[2])
+assert_type(np.vecdot.nout, Literal[1])
+assert_type(np.vecdot.nargs, Literal[3])
+assert_type(np.vecdot.signature, Literal["(n),(n)->()"])
+assert_type(np.vecdot.identity, None)
+assert_type(np.vecdot(AR_f8, AR_f8), Any)
+
+assert_type(np.bitwise_count.__name__, Literal["bitwise_count"])
+assert_type(np.bitwise_count.__qualname__, Literal["bitwise_count"])
+assert_type(np.bitwise_count.ntypes, Literal[11])
+assert_type(np.bitwise_count.identity, None)
+assert_type(np.bitwise_count.nin, Literal[1])
+assert_type(np.bitwise_count.nout, Literal[1])
+assert_type(np.bitwise_count.nargs, Literal[2])
+assert_type(np.bitwise_count.signature, None)
+assert_type(np.bitwise_count.identity, None)
+assert_type(np.bitwise_count(i8), Any)
+assert_type(np.bitwise_count(AR_i8), npt.NDArray[Any])
+
+def test_absolute_outer_invalid() -> None:
+    assert_type(np.absolute.outer(AR_f8, AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_frexp_outer_invalid() -> None:
+    assert_type(np.frexp.outer(AR_f8, AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_divmod_outer_invalid() -> None:
+    assert_type(np.divmod.outer(AR_f8, AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_matmul_outer_invalid() -> None:
+    assert_type(np.matmul.outer(AR_f8, AR_f8), NoReturn)  # type: ignore[arg-type]
+
+def test_absolute_reduceat_invalid() -> None:
+    assert_type(np.absolute.reduceat(AR_f8, AR_i8), NoReturn)  # type: ignore[arg-type]
+def test_frexp_reduceat_invalid() -> None:
+    assert_type(np.frexp.reduceat(AR_f8, AR_i8), NoReturn)  # type: ignore[arg-type]
+def test_divmod_reduceat_invalid() -> None:
+    assert_type(np.divmod.reduceat(AR_f8, AR_i8), NoReturn)  # type: ignore[arg-type]
+def test_matmul_reduceat_invalid() -> None:
+    assert_type(np.matmul.reduceat(AR_f8, AR_i8), NoReturn)  # type: ignore[arg-type]
+
+def test_absolute_reduce_invalid() -> None:
+    assert_type(np.absolute.reduce(AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_frexp_reduce_invalid() -> None:
+    assert_type(np.frexp.reduce(AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_divmod_reduce_invalid() -> None:
+    assert_type(np.divmod.reduce(AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_matmul_reduce_invalid() -> None:
+    assert_type(np.matmul.reduce(AR_f8), NoReturn)  # type: ignore[arg-type]
+
+def test_absolute_accumulate_invalid() -> None:
+    assert_type(np.absolute.accumulate(AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_frexp_accumulate_invalid() -> None:
+    assert_type(np.frexp.accumulate(AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_divmod_accumulate_invalid() -> None:
+    assert_type(np.divmod.accumulate(AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_matmul_accumulate_invalid() -> None:
+    assert_type(np.matmul.accumulate(AR_f8), NoReturn)  # type: ignore[arg-type]
+
+def test_frexp_at_invalid() -> None:
+    assert_type(np.frexp.at(AR_f8, i8), NoReturn)  # type: ignore[arg-type]
+def test_divmod_at_invalid() -> None:
+    assert_type(np.divmod.at(AR_f8, i8, AR_f8), NoReturn)  # type: ignore[arg-type]
+def test_matmul_at_invalid() -> None:
+    assert_type(np.matmul.at(AR_f8, i8, AR_f8), NoReturn)  # type: ignore[arg-type]
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/warnings_and_errors.pyi b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/warnings_and_errors.pyi
new file mode 100644
index 0000000000000000000000000000000000000000..4c0d23bde6bbd018910e7366a32cc8185cae1120
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/data/reveal/warnings_and_errors.pyi
@@ -0,0 +1,11 @@
+from typing import assert_type
+
+import numpy.exceptions as ex
+
+assert_type(ex.ModuleDeprecationWarning(), ex.ModuleDeprecationWarning)
+assert_type(ex.VisibleDeprecationWarning(), ex.VisibleDeprecationWarning)
+assert_type(ex.ComplexWarning(), ex.ComplexWarning)
+assert_type(ex.RankWarning(), ex.RankWarning)
+assert_type(ex.TooHardError(), ex.TooHardError)
+assert_type(ex.AxisError("test"), ex.AxisError)
+assert_type(ex.AxisError(5, 1), ex.AxisError)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/test_isfile.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/test_isfile.py
new file mode 100644
index 0000000000000000000000000000000000000000..5175147e3b4c5479dfcfaeb820a534f938464ba0
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/test_isfile.py
@@ -0,0 +1,38 @@
+import os
+import sys
+from pathlib import Path
+
+import pytest
+
+import numpy as np
+from numpy.testing import assert_
+
+ROOT = Path(np.__file__).parents[0]
+FILES = [
+    ROOT / "py.typed",
+    ROOT / "__init__.pyi",
+    ROOT / "ctypeslib" / "__init__.pyi",
+    ROOT / "_core" / "__init__.pyi",
+    ROOT / "f2py" / "__init__.pyi",
+    ROOT / "fft" / "__init__.pyi",
+    ROOT / "lib" / "__init__.pyi",
+    ROOT / "linalg" / "__init__.pyi",
+    ROOT / "ma" / "__init__.pyi",
+    ROOT / "matrixlib" / "__init__.pyi",
+    ROOT / "polynomial" / "__init__.pyi",
+    ROOT / "random" / "__init__.pyi",
+    ROOT / "testing" / "__init__.pyi",
+]
+if sys.version_info < (3, 12):
+    FILES += [ROOT / "distutils" / "__init__.pyi"]
+
+
+@pytest.mark.thread_unsafe(
+    reason="os.path has a thread-safety bug (python/cpython#140054). "
+           "Expected to only be a problem in 3.14.0"
+)
+class TestIsFile:
+    def test_isfile(self):
+        """Test if all ``.pyi`` files are properly installed."""
+        for file in FILES:
+            assert_(os.path.isfile(file))
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/test_runtime.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/test_runtime.py
new file mode 100644
index 0000000000000000000000000000000000000000..2d9b9f20fd83f4e6e24df4ce758f8d2ec1616f76
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/test_runtime.py
@@ -0,0 +1,110 @@
+"""Test the runtime usage of `numpy.typing`."""
+
+from typing import (
+    Any,
+    NamedTuple,
+    Union,  # pyright: ignore[reportDeprecated]
+    get_args,
+    get_origin,
+    get_type_hints,
+)
+
+import pytest
+
+import numpy as np
+import numpy._typing as _npt
+import numpy.typing as npt
+
+
+class TypeTup(NamedTuple):
+    typ: type
+    args: tuple[type, ...]
+    origin: type | None
+
+
+def _flatten_type_alias(t: Any) -> Any:
+    # "flattens" a TypeAliasType to its underlying type alias
+    return getattr(t, "__value__", t)
+
+
+NDArrayTup = TypeTup(npt.NDArray, npt.NDArray.__args__, np.ndarray)
+
+TYPES = {
+    "ArrayLike": TypeTup(
+        _flatten_type_alias(npt.ArrayLike),
+        _flatten_type_alias(npt.ArrayLike).__args__,
+        Union,
+    ),
+    "DTypeLike": TypeTup(
+        _flatten_type_alias(npt.DTypeLike),
+        _flatten_type_alias(npt.DTypeLike).__args__,
+        Union,
+    ),
+    "NBitBase": TypeTup(npt.NBitBase, (), None),  # type: ignore[deprecated]  # pyright: ignore[reportDeprecated]
+    "NDArray": NDArrayTup,
+}
+
+
+@pytest.mark.parametrize("name,tup", TYPES.items(), ids=TYPES.keys())
+def test_get_args(name: type, tup: TypeTup) -> None:
+    """Test `typing.get_args`."""
+    typ, ref = tup.typ, tup.args
+    out = get_args(typ)
+    assert out == ref
+
+
+@pytest.mark.parametrize("name,tup", TYPES.items(), ids=TYPES.keys())
+def test_get_origin(name: type, tup: TypeTup) -> None:
+    """Test `typing.get_origin`."""
+    typ, ref = tup.typ, tup.origin
+    out = get_origin(typ)
+    assert out == ref
+
+
+@pytest.mark.parametrize("name,tup", TYPES.items(), ids=TYPES.keys())
+def test_get_type_hints(name: type, tup: TypeTup) -> None:
+    """Test `typing.get_type_hints`."""
+    typ = tup.typ
+
+    def func(a: typ) -> None: pass
+
+    out = get_type_hints(func)
+    ref = {"a": typ, "return": type(None)}
+    assert out == ref
+
+
+@pytest.mark.parametrize("name,tup", TYPES.items(), ids=TYPES.keys())
+def test_get_type_hints_str(name: type, tup: TypeTup) -> None:
+    """Test `typing.get_type_hints` with string-representation of types."""
+    typ_str, typ = f"npt.{name}", tup.typ
+
+    def func(a: typ_str) -> None: pass
+
+    out = get_type_hints(func)
+    ref = {"a": getattr(npt, str(name)), "return": type(None)}
+    assert out == ref
+
+
+def test_keys() -> None:
+    """Test that ``TYPES.keys()`` and ``numpy.typing.__all__`` are synced."""
+    keys = TYPES.keys()
+    ref = set(npt.__all__)
+    assert keys == ref
+
+
+PROTOCOLS: dict[str, tuple[type[Any], object]] = {
+    "_SupportsArray": (_npt._SupportsArray, np.arange(10)),
+    "_SupportsArrayFunc": (_npt._SupportsArrayFunc, np.arange(10)),
+    "_NestedSequence": (_npt._NestedSequence, [1]),
+}
+
+
+@pytest.mark.parametrize("cls,obj", PROTOCOLS.values(), ids=PROTOCOLS.keys())
+class TestRuntimeProtocol:
+    def test_isinstance(self, cls: type[Any], obj: object) -> None:
+        assert isinstance(obj, cls)
+        assert not isinstance(None, cls)
+
+    def test_issubclass(self, cls: type[Any], obj: object) -> None:
+        assert issubclass(type(obj), cls)
+        assert not issubclass(type(None), cls)
diff --git a/python/user_packages/Python313/site-packages/numpy/typing/tests/test_typing.py b/python/user_packages/Python313/site-packages/numpy/typing/tests/test_typing.py
new file mode 100644
index 0000000000000000000000000000000000000000..716c975febbf6bc3069eb7440314378310815e5a
--- /dev/null
+++ b/python/user_packages/Python313/site-packages/numpy/typing/tests/test_typing.py
@@ -0,0 +1,205 @@
+import importlib.util
+import os
+import re
+import shutil
+import textwrap
+from collections import defaultdict
+from typing import TYPE_CHECKING
+
+import pytest
+
+# Only trigger a full `mypy` run if this environment variable is set
+# Note that these tests tend to take over a minute even on a macOS M1 CPU,
+# and more than that in CI.
+RUN_MYPY = "NPY_RUN_MYPY_IN_TESTSUITE" in os.environ
+if RUN_MYPY and RUN_MYPY not in ('0', '', 'false'):
+    RUN_MYPY = True
+
+# Skips all functions in this file
+pytestmark = pytest.mark.skipif(
+    not RUN_MYPY,
+    reason="`NPY_RUN_MYPY_IN_TESTSUITE` not set"
+)
+
+
+try:
+    from mypy import api
+except ImportError:
+    NO_MYPY = True
+else:
+    NO_MYPY = False
+
+if TYPE_CHECKING:
+    from collections.abc import Iterator
+
+    # We need this as annotation, but it's located in a private namespace.
+    # As a compromise, do *not* import it during runtime
+    from _pytest.mark.structures import ParameterSet
+
+DATA_DIR = os.path.join(os.path.dirname(__file__), "data")
+PASS_DIR = os.path.join(DATA_DIR, "pass")
+FAIL_DIR = os.path.join(DATA_DIR, "fail")
+REVEAL_DIR = os.path.join(DATA_DIR, "reveal")
+MISC_DIR = os.path.join(DATA_DIR, "misc")
+MYPY_INI = os.path.join(DATA_DIR, "mypy.ini")
+CACHE_DIR = os.path.join(DATA_DIR, ".mypy_cache")
+
+#: A dictionary with file names as keys and lists of the mypy stdout as values.
+#: To-be populated by `run_mypy`.
+OUTPUT_MYPY: defaultdict[str, list[str]] = defaultdict(list)
+
+
+def _key_func(key: str) -> str:
+    """Split at the first occurrence of the ``:`` character.
+
+    Windows drive-letters (*e.g.* ``C:``) are ignored herein.
+    """
+    drive, tail = os.path.splitdrive(key)
+    return os.path.join(drive, tail.split(":", 1)[0])
+
+
+def _strip_filename(msg: str) -> tuple[int, str]:
+    """Strip the filename and line number from a mypy message."""
+    _, tail = os.path.splitdrive(msg)
+    _, lineno, msg = tail.split(":", 2)
+    return int(lineno), msg.strip()
+
+
+def strip_func(match: re.Match[str]) -> str:
+    """`re.sub` helper function for stripping module names."""
+    return match.groups()[1]
+
+
+@pytest.fixture(scope="module", autouse=True)
+def run_mypy() -> None:
+    """Clears the cache and run mypy before running any of the typing tests.
+
+    The mypy results are cached in `OUTPUT_MYPY` for further use.
+
+    The cache refresh can be skipped using
+
+    NUMPY_TYPING_TEST_CLEAR_CACHE=0 pytest numpy/typing/tests
+    """
+    if (
+        os.path.isdir(CACHE_DIR)
+        and bool(os.environ.get("NUMPY_TYPING_TEST_CLEAR_CACHE", True))  # noqa: PLW1508
+    ):
+        shutil.rmtree(CACHE_DIR)
+
+    split_pattern = re.compile(r"(\s+)?\^(\~+)?")
+    for directory in (PASS_DIR, REVEAL_DIR, FAIL_DIR, MISC_DIR):
+        # Run mypy
+        stdout, stderr, exit_code = api.run([
+            "--config-file",
+            MYPY_INI,
+            "--cache-dir",
+            CACHE_DIR,
+            directory,
+        ])
+        if stderr:
+            pytest.fail(f"Unexpected mypy standard error\n\n{stderr}", False)
+        elif exit_code not in {0, 1}:
+            pytest.fail(f"Unexpected mypy exit code: {exit_code}\n\n{stdout}", False)
+
+        str_concat = ""
+        filename: str | None = None
+        for i in stdout.split("\n"):
+            if "note:" in i:
+                continue
+            if filename is None:
+                filename = _key_func(i)
+
+            str_concat += f"{i}\n"
+            if split_pattern.match(i) is not None:
+                OUTPUT_MYPY[filename].append(str_concat)
+                str_concat = ""
+                filename = None
+
+
+def get_test_cases(*directories: str) -> "Iterator[ParameterSet]":
+    for directory in directories:
+        for root, _, files in os.walk(directory):
+            for fname in files:
+                short_fname, ext = os.path.splitext(fname)
+                if ext not in (".pyi", ".py"):
+                    continue
+
+                fullpath = os.path.join(root, fname)
+                yield pytest.param(fullpath, id=short_fname)
+
+
+_FAIL_INDENT = " " * 4
+_FAIL_SEP = "\n" + "_" * 79 + "\n\n"
+
+_FAIL_MSG_REVEAL = """{}:{} - reveal mismatch:
+
+{}"""
+
+
+@pytest.mark.slow
+@pytest.mark.skipif(NO_MYPY, reason="Mypy is not installed")
+@pytest.mark.parametrize("path", get_test_cases(PASS_DIR, FAIL_DIR))
+def test_pass(path) -> None:
+    # Alias `OUTPUT_MYPY` so that it appears in the local namespace
+    output_mypy = OUTPUT_MYPY
+
+    if path not in output_mypy:
+        return
+
+    relpath = os.path.relpath(path)
+
+    # collect any reported errors, and clean up the output
+    messages = []
+    for message in output_mypy[path]:
+        lineno, content = _strip_filename(message)
+        content = content.removeprefix("error:").lstrip()
+        messages.append(f"{relpath}:{lineno} - {content}")
+
+    if messages:
+        pytest.fail("\n".join(messages), pytrace=False)
+
+
+@pytest.mark.slow
+@pytest.mark.skipif(NO_MYPY, reason="Mypy is not installed")
+@pytest.mark.parametrize("path", get_test_cases(REVEAL_DIR))
+def test_reveal(path: str) -> None:
+    """Validate that mypy correctly infers the return-types of
+    the expressions in `path`.
+    """
+    __tracebackhide__ = True
+
+    output_mypy = OUTPUT_MYPY
+    if path not in output_mypy:
+        return
+
+    relpath = os.path.relpath(path)
+
+    # collect any reported errors, and clean up the output
+    failures = []
+    for error_line in output_mypy[path]:
+        lineno, error_msg = _strip_filename(error_line)
+        error_msg = textwrap.indent(error_msg, _FAIL_INDENT)
+        reason = _FAIL_MSG_REVEAL.format(relpath, lineno, error_msg)
+        failures.append(reason)
+
+    if failures:
+        reasons = _FAIL_SEP.join(failures)
+        pytest.fail(reasons, pytrace=False)
+
+
+@pytest.mark.slow
+@pytest.mark.skipif(NO_MYPY, reason="Mypy is not installed")
+@pytest.mark.parametrize("path", get_test_cases(PASS_DIR))
+def test_code_runs(path: str) -> None:
+    """Validate that the code in `path` properly during runtime."""
+    path_without_extension, _ = os.path.splitext(path)
+    dirname, filename = path.split(os.sep)[-2:]
+
+    spec = importlib.util.spec_from_file_location(
+        f"{dirname}.{filename}", path
+    )
+    assert spec is not None
+    assert spec.loader is not None
+
+    test_module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(test_module)